CN116269625B - Tibial extramedullary osteotomy positioning device and method - Google Patents
Tibial extramedullary osteotomy positioning device and methodInfo
- Publication number
- CN116269625B CN116269625B CN202310358084.5A CN202310358084A CN116269625B CN 116269625 B CN116269625 B CN 116269625B CN 202310358084 A CN202310358084 A CN 202310358084A CN 116269625 B CN116269625 B CN 116269625B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- positioning
- rotating
- block
- mounting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1703—Guides or aligning means for drills, mills, pins or wires using imaging means, e.g. by X-rays
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Dentistry (AREA)
- Pathology (AREA)
- Neurosurgery (AREA)
- Radiology & Medical Imaging (AREA)
- Surgical Instruments (AREA)
Abstract
本申请涉及医疗器械的技术领域，尤其是涉及一种胫骨髓外截骨定位装置和方法。一种胫骨髓外截骨定位装置包括腿脚架和定位组件，定位组件包括定位架、安装座、若干块定位板及若干根显影针，若干块定位板和若干根显影针一一对应设置，定位板固定设置在腿脚架上，定位板上开设有用于安装对应显影针的安装孔，腿脚架的两侧均设置有安装座，两个安装座之间设置有安装板，安装板与安装座可拆卸连接，安装板上设置有能够多角度调节定位架的多向调节组件；一种胫骨髓外截骨定位方法，通过与CT技术结合，能够测量胫骨骨干与显影针之间的夹角，并通过多向调节组件调节定位架至合适角度完成定位，本申请具有提高胫骨固定位精确度的效果。
The present application relates to the technical field of medical devices, and in particular to a tibial extramedullary osteotomy positioning device and method. A tibial extramedullary osteotomy positioning device includes a leg frame and a positioning assembly, the positioning assembly includes a positioning frame, a mounting seat, a plurality of positioning plates and a plurality of developing needles, the plurality of positioning plates and the plurality of developing needles are arranged in a one-to-one correspondence, the positioning plate is fixedly arranged on the leg frame, the positioning plate is provided with a mounting hole for installing the corresponding developing needle, both sides of the leg frame are provided with a mounting seat, a mounting plate is provided between the two mounting seats, the mounting plate and the mounting seat are detachably connected, and the mounting plate is provided with a multi-directional adjustment assembly that can adjust the positioning frame at multiple angles; a tibial extramedullary osteotomy positioning method, by combining with CT technology, can measure the angle between the tibial shaft and the developing needle, and adjust the positioning frame to the appropriate angle through the multi-directional adjustment assembly to complete the positioning, and the present application has the effect of improving the accuracy of tibial fixation.
Description
Technical Field
The application relates to the technical field of medical appliances, in particular to a device and a method for positioning a tibia extramedullary osteotomy.
Background
The artificial knee joint replacement is a new technology for treating knee joint diseases, which is developed gradually after the modern artificial hip joint is successfully applied to patients, can effectively treat late knee joint pain and improve the life quality of the patients.
In artificial knee joint replacement, firstly, the upper end of the tibia needs to be subjected to osteotomy, so that a tibial plane for installing an artificial prosthesis is obtained, and the osteotomy angle of the tibial platform needs to be determined before the tibia is subjected to osteotomy, so that the tibia needs to be accurately positioned, a positioning device in the related technology needs to be used for a doctor to observe and position visually, and finally, the osteotomy angle of the tibia is determined, so that the positioning precision is poor.
Disclosure of Invention
In order to improve the positioning accuracy of the tibia of a patient, the application provides a device and a method for positioning the tibia outside bone marrow.
In a first aspect, the present application provides an external tibial osteotomy positioning device, which adopts the following technical scheme:
The utility model provides a shin bone marrow cuts bone positioner outward, includes leg rest and locating component, locating component includes locating rack, mount pad, a plurality of locating plates and a plurality of development needle one-to-one setting, the locating plate is fixed to be set up on the leg rest, set up on the locating plate and be used for the installation to correspond the mounting hole of development needle, the both sides of leg rest all are provided with the mount pad, two be provided with the mounting panel between the mount pad, the mounting panel with the mount pad can dismantle the connection, be provided with on the mounting panel and can multi-angle adjustment the multidirectional adjusting part of locating rack.
Before operation is carried out on a patient, the tibia of the patient needs to be positioned, so that the accuracy of osteotomy in the subsequent operation is convenient, by adopting the technical scheme, firstly, the leg support is worn on the lower limb of the patient, then, the CT examination is carried out on the lower limb of the patient, the developing needle and the tibia diaphysis of the patient can be molded on a CT sheet, the included angle between the tibia diaphysis and the developing needle in the CT sheet in the forward direction and the lateral direction is measured, then mounting plate and multidirectional adjusting component are mounted on leg frame in the operation to install leg frame on patient's low limbs, thereby adjust the locating rack to suitable angle through multidirectional adjusting component according to the contained angle of measurement and accomplish the location, the shin bone marrow outside osteotomy positioner in the application combines with CT technique, and the angle of conveniently adjusting the locating rack through multidirectional adjusting component on the one hand, on the other hand can improve the accuracy to the location of shin bone diaphysis.
The multi-direction adjusting component comprises a forward adjusting piece and a lateral adjusting piece, wherein the forward adjusting piece comprises a first rotating block, a first rotating disc, a first sleeve and a connecting block, one end of the first rotating block is rotationally connected with the mounting plate, the other end of the first rotating block is fixedly connected with the first sleeve, and a connecting hole matched with the first sleeve is formed in the connecting block;
The first rotating disc is rotationally connected with the mounting plate, a plurality of first tooth grooves are formed in one side, close to the connecting block, of the first rotating disc at intervals, first tooth teeth matched with the first tooth grooves are arranged on the connecting block, and the lateral adjusting piece is arranged on the connecting block and can drive the locating rack to swing in a reciprocating mode.
Through adopting above-mentioned technical scheme, according to the contained angle between developing needle and the shin bone diaphysis in the CT piece, rotate first rolling disc to suitable angle, first rolling disc drives the connecting block swing to drive side direction regulating part swing, side direction regulating part drives the locating rack and swings to suitable angle again.
Optionally, the one end that first sleeve kept away from first rotating block is provided with spacing sleeve, spacing sleeve cover is established on the first sleeve, the connecting block passes through the connecting hole slip cap is established on the first sleeve, the connecting hole is close to fixedly on the inner wall of first rotating block one end be provided with first spacing ring, still the cover is equipped with first spacing spring on the first sleeve, first spacing spring's one end with first spacing ring fixed connection, first spacing spring's the other end with spacing sleeve fixed connection.
Through adopting above-mentioned technical scheme, through being provided with first spacing spring, first spacing spring promotes the connecting block to the direction removal of first rotating turntable to first tooth can more stablely the butt in corresponding first tooth's socket, thereby improves forward regulating part stability in the adjustment process.
Optionally, the lateral adjusting piece comprises a second rotating block, a second sleeve and a second rotating disk, one end of the second rotating block is rotationally connected with the connecting block, the other end of the second rotating block is fixedly connected with the second sleeve, the second sleeve is sleeved with the rotating sleeve,
The second rotating disc is rotationally connected with the second rotating block, a plurality of second tooth grooves are formed in one side, close to the rotating sleeve, of the second rotating disc at intervals, and second tooth teeth matched with the second tooth grooves are formed in the rotating sleeve;
the locating rack includes locating lever and locating piece, the one end of locating lever inserts in the second sleeve, the other end of locating lever with locating piece fixed connection.
Through adopting above-mentioned technical scheme, when forward regulating part adjusts to suitable angle back, readjust the angle of side direction regulating part, according to another contained angle between developing needle and the shin bone diaphysis in the CT piece, with second rotation carousel regulation to suitable angle, the second rotates the carousel and drives the rotation sleeve swing, rotates the sleeve and drives the second sleeve swing to drive locating lever to suitable angle.
Optionally, the one end that the second sleeve kept away from the second pivoted piece is provided with the sleeve that increases, it establishes to increase the fixed cover of sleeve on the second sleeve, it is close to rotate the sleeve be provided with the spacing ring of second on the inner wall of second sleeve one end, still be provided with the spacing spring of second in the rotation sleeve, the one end of spacing spring of second with increase sleeve fixed connection, the other end of spacing spring of second with spacing ring fixed connection of second.
Through adopting above-mentioned technical scheme, through being provided with second spacing spring, improved the stability of second tooth butt in the second tooth's socket to improve the stability of side direction regulating part in the adjustment process.
Optionally, an internal thread hole is formed in the side wall of the height-adjusting sleeve, a locking screw is screwed in the internal thread hole, a locking groove matched with the locking screw is formed in the positioning rod, and the locking groove is formed in the length direction of the positioning rod.
Through adopting above-mentioned technical scheme, after the angle modulation of locating rack reaches suitable angle, adjust the height of locating lever, insert through adjusting the locating lever and improve telescopic degree of depth, then the locking screw rod is passed through with the cooperation of locked groove and is limited the height of locating lever, and is fixed locating piece and tibia again, carries out tibia osteotomy operation again, isomorphic locking screw rod and locked groove cooperation can restrict the locating lever and rotate in the sleeve of increaseing, further improves the stability and the accuracy of locating lever.
Optionally, the mounting seat is provided with a mounting groove matched with the mounting plate, a side wall of the mounting groove is provided with a first positioning hole, a positioning pin is inserted in the first positioning hole, two ends of the mounting plate are provided with second positioning holes, and the positioning pin is matched with the second positioning holes to fix the mounting plate.
Through adopting above-mentioned technical scheme, when the mounting panel is installed, align the second locating hole at mounting panel both ends with the first locating hole on the mount pad, then insert the locating pin again and thereby the fixed mounting panel to improve multidirectional adjusting assembly's stability, and also make things convenient for the dismantlement of mounting panel.
Optionally, the both sides of leg and foot frame are provided with a plurality of tightening strap and a plurality of buckle respectively, and a plurality of tightening strap and a plurality of buckle one-to-one sets up, tightening strap and corresponding buckle cooperation.
Through adopting above-mentioned technical scheme, when patient's low limbs wear leg foot rest, through tightening area and buckle cooperation, can make leg foot rest and patient's low limbs more laminate and more stable.
In a second aspect, the present application provides a method for positioning an extratibial osteotomy, which uses the extratibial osteotomy positioning device as described above, and adopts the following technical scheme:
a method for locating an extratibial osteotomy, comprising the steps of:
s1, wearing a leg rest on the lower limb of a patient before an operation and fastening;
S2, CT imaging is carried out on the right position and the side position of the lower limb of the patient;
S3, measuring the included angle between the tibia diaphysis of the patient and the developing needle in the right position and the side position according to the CT result in the step S2;
s4, in the operation, the leg and foot rest in the step S1 is worn on the lower limb of a patient, a multidirectional adjusting assembly is arranged on the leg and foot rest, and the multidirectional adjusting assembly is fixed by a locating pin;
S5, adjusting the multidirectional adjusting assembly to a corresponding angle according to the included angle measured in the step S3;
s6, adjusting the height of the locating frame, locking, fixing the locating block with the tibia of the patient, and performing tibia osteotomy.
By adopting the technical scheme, the tibia bone outside-marrow osteotomy positioning device is combined with CT technology, so that errors caused by visual observation of included angles are reduced, the included angles are parameterized in the positioning process, the included angles between the positioning frame and the tibia diaphysis can be more accurately adjusted, the tibia positioning accuracy is further improved, the tibia plane can be more accurately intercepted, and the artificial prosthesis is convenient to install.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The tibia bone outside osteotomy positioning device is combined with CT technology, so that on one hand, the angle of the positioning frame can be conveniently adjusted through the multidirectional adjusting assembly, and on the other hand, the accuracy of positioning the tibia diaphysis can be improved.
2. Through being provided with first spacing spring, first spacing spring promotes the connecting block and removes to the direction of first carousel that rotates to first tooth can more stablely the butt in corresponding first tooth's socket, thereby improves the stability of forward regulating part in the adjustment process.
3. After the angle of locating rack is adjusted to suitable angle, adjust the height of locating lever, insert through adjusting the locating lever and improve telescopic degree of depth, then the rethread locking screw rod is fixed locating lever with the tibia with the cooperation of locked groove limit the height of locating lever, carries out the tibia again and cuts the bone operation, isomorphic locking screw rod and locked groove cooperation can restrict the locating lever and rotate in the sleeve of increaseing, further improves the stability of locating lever.
Drawings
Fig. 1 is a schematic perspective view of an extratibial osteotomy positioning device in accordance with an embodiment of the application.
Fig. 2 is a schematic diagram of a part of the explosion structure of the structure in the embodiment of the present application.
Fig. 3 is a schematic perspective view of a multi-directional adjusting assembly according to an embodiment of the present application.
Fig. 4 is a schematic cross-sectional view of a first sleeve according to an embodiment of the present application.
Fig. 5 is an exploded view of a connection structure of a connection block according to an embodiment of the present application.
Fig. 6 is a schematic cross-sectional view of a second sleeve according to an embodiment of the present application.
Fig. 7 is a schematic diagram of an exploded structure of a height-adjusting sleeve connection structure according to an embodiment of the present application.
The positioning device comprises the following components of 1, a leg frame, 11, a containing groove, 12, a tightening belt, 13, a buckle, 2, a positioning component, 21, a positioning frame, 211, a positioning rod, 2111, a locking groove, 212, a positioning block, 22, a positioning plate, 221, a mounting hole, 23, a developing needle, 24, a mounting seat, 241, a mounting groove, 242, a first positioning hole, 243, a positioning pin, 25, a mounting plate, 251, a second positioning hole, 252, a first rotating hole, 253, a fixing plate, 26, a rib plate, 3, a multidirectional adjusting component, 31, a forward adjusting piece, 311, a first rotating block, 312, a first rotating disc, 3121, a first tooth socket, 313, a first sleeve, 3131, a first cutting surface, 314, a connecting block, 3141, a connecting hole, 3142, a first tooth socket, 3143, a second rotating hole, 3144, a connecting plate, 315, a limiting sleeve, 3151, a first limiting surface, 52, 316, a first limiting spring, 32, a lateral adjusting piece, 321, a second rotating block, 312, a first limiting surface, 316, a first limiting spring, a second limiting sleeve, a second rotating block, 322, a second rotating block, a first rotating disc, 3121, a first tooth socket, 313, a first sleeve, 3131, a first rotating socket, a 3131, a first rotating socket, a connecting surface, a second rotating socket, a 3143, a second rotating socket, a connecting surface, a second rotating socket, a 3143, a 31, a connecting surface, a connecting socket, a and a connecting socket, a 31, a connecting socket, a and a 3, a limiting socket, a and a rotating position, a and a limiting socket.
Detailed Description
The present application will be described in further detail with reference to fig. 1 to 7.
Referring to fig. 1 and 2, a tibia marrow external osteotomy positioning device comprises a leg rest 1, a positioning component 2 and a multidirectional adjusting component 3, wherein the leg rest 1 is provided with a containing groove 11 which is convenient for the lower limb of a patient to wear, the positioning component 2 comprises a positioning frame 21, a plurality of positioning plates 22 and a plurality of developing needles 23, the plurality of positioning plates 22 and the plurality of developing needles 23 are arranged in a one-to-one correspondence manner, two positioning plates 22 and two developing needles 23 are selected in the embodiment, the positioning plates 22 are fixedly arranged on the leg rest 1, the two positioning plates 22 are parallel to each other, mounting holes 221 for mounting the corresponding developing needles 23 are formed in the positioning plates 22, the developing needles 23 are convenient to mount, the mounting holes 221 are formed along the length direction of the positioning plates 22, mounting seats 24 are arranged on two sides of the leg rest 1, a mounting plate 25 is arranged between the two mounting seats 24, two ends of the mounting plate 25 are detachably connected with the corresponding mounting seats 24, and the multidirectional adjusting component 3 is arranged on the mounting plate 25 and can adjust the positioning frame 21 in a multi-angle manner.
The leg rest 1 is worn on the lower limb of a patient, CT examination is carried out on the lower limb of the patient, the included angle between the shank and the developing needle 23 in the forward direction and the lateral direction is measured on a CT sheet, and then the positioning frame 21 is adjusted to a proper angle through the multidirectional adjusting assembly 3 so as to finish positioning.
Referring to fig. 1 and 2, the mounting seat 24 is provided with a mounting groove 241 matched with the mounting plate 25, the side wall of the mounting groove 241 is also provided with a first positioning hole 242, both ends of the mounting plate 25 are provided with second positioning holes 251, positioning pins 243 are inserted into the first positioning holes 242, when the multidirectional adjusting assembly 3 is mounted, both ends of the mounting plate 25 are firstly mounted in the corresponding mounting grooves 241, the first positioning holes 242 are aligned with the second positioning holes 251, and then the positioning pins 243 are inserted into the second positioning holes 251 to fix the mounting plate 25, so that the stability of the mounting plate 25 is improved and the mounting plate 25 is convenient to dismount. In addition, two locating plates 22 and two mount pads 24 one-to-one set up, still be provided with the rib plate 26 between mount pad 24 and corresponding locating plate 22, the one end and the locating plate 22 fixed connection of rib plate 26, the other end and the locating plate 22 fixed connection of rib plate 26 to one side of rib plate 26 still with leg rest 1 lateral surface fixed connection, make locating plate 22, mount pad 24 and leg rest 1 three form an entity through rib plate 26, strengthened this shin bone marrow outside osteotomy positioner's wholeness.
Referring to fig. 1, both sides of a leg rest 1 are respectively provided with a plurality of tightening belts 12 and a plurality of buckles 13, the plurality of tightening belts 12 are arranged in one-to-one correspondence with the plurality of buckles 13, the leg rest 1 is firstly mounted on the lower limb of a patient, then fastening is realized by matching the tightening belts 12 with the corresponding buckles 13, the leg rest 1 is firmly fixed with the leg and the foot, and the stability and the repeatability of preoperative measurement and the fixing in the operation can be improved by utilizing the joint characteristics of ankle joints similar to hinges.
Referring to fig. 1, the multidirectional adjusting assembly 3 includes a forward adjusting member 31 and a lateral adjusting member 32, the forward adjusting member 31 can reciprocally swing the positioning frame 21 in a plane perpendicular to the length direction of the mounting plate 25, the lateral adjusting member 32 can reciprocally swing the positioning frame 21 in a direction close to both ends of the mounting plate 25, and the positioning frame 21 is adjusted in multiple angles by matching the forward adjusting member 31 and the lateral adjusting member 32, so that the angle of the positioning frame 21 can be adjusted more conveniently.
Specifically, referring to fig. 3 and 4, the forward adjusting member 31 includes a first rotating block 311, a first rotating disc 312, a first sleeve 313 and a connecting block 314, a first rotating hole 252 is opened in the middle of the mounting plate 25, one end of the first rotating block 311 extends into the first rotating hole 252 and is rotationally connected with the inner wall of the first rotating hole 252, the other end of the first rotating block 311 is fixedly connected with the first sleeve 313, the axis of the first rotating block 311 coincides with the axis of the first sleeve 313, a connecting hole 3141 matched with the first sleeve 313 is opened on the connecting block 314, the connecting block 314 is slidably sleeved on the first sleeve 313 through the connecting hole 3141, a fixing plate 253 is fixedly arranged in the middle of the mounting plate 25, the fixing plate 253 is arranged at intervals with the first rotating block 311, one side of the fixing plate 253 close to the first rotating block 311 is rotationally connected with the first rotating disc 312, the first rotating disc 312 is in a fan-shaped structure, a plurality of first tooth sockets 3121 are arranged at intervals on one side of the first rotating disc 312 close to the connecting block 314, a plurality of tooth sockets 3121 are engraved on the first rotating disc 312, and accordingly, when the connecting block 314 is in a reciprocating mode, the first rotating disc 312 is in a position perpendicular to the first rotating shaft line 312, and the first rotating shaft line 3142 is in a reciprocating mode, and the connecting shaft line is arranged between the rotating shaft line and the first rotating plate 31 and the connecting plate 31 and can rotate.
In order to enhance the abutting strength of the connecting block 314 and the first rotating disc 312, referring to fig. 4, one end of the first sleeve 313, which is far away from the first rotating block 311, is provided with a limiting sleeve 315, the limiting sleeve 315 is fixedly sleeved on the first sleeve 313, a first limiting ring 3151 is fixedly arranged on the inner wall of the connecting hole 3141, which is close to one end of the first rotating block 311, the inner diameter of the connecting hole 3141 is matched with the outer side wall of the limiting sleeve 315, so that the connecting block 314 is sleeved on the limiting sleeve 315 through the first limiting ring 3151, a first limiting spring 316 is further sleeved on the first sleeve 313, the first limiting spring 316 is positioned in the connecting hole 3141, one end of the first limiting spring 316 is fixedly connected with the first limiting ring 3151, the other end of the first limiting spring 316 is fixedly connected with the end face of the limiting sleeve 315, and under the action of the first limiting spring 316, the connecting block 314 is always subjected to a thrust force towards the first rotating block 311, and accordingly the first tooth 3142 can be stably abutted in the corresponding first tooth slot 3121, and the swinging stability of the forward adjusting piece 31 is improved.
Referring to fig. 5, a first cutting surface 3131 is disposed on an outer side surface of the first sleeve 313, a first limiting surface 3152 is also disposed on the first limiting ring 3151, and when the connection block 314 is slidably sleeved on the first sleeve 313, the first cutting surface 3131 cooperates with the first limiting surface 3152, so that the connection block 314 can only slide along a length direction of the first sleeve 313, and thus the connection block 314 can only swing reciprocally in a plane perpendicular to the length direction of the mounting plate 25 under the driving of the first rotating disc 312.
Referring to fig. 3 and 5, the lateral adjusting member 32 is rotatably disposed on a side surface of the connecting block 314, which is far away from the first rotating block 311, specifically, the lateral adjusting member 32 includes a second rotating block 321, a second sleeve 322 and a second rotating disc 323, the connecting block 314 is provided with a second rotating hole 3143, one end of the second rotating block 321 extends into the second rotating hole 3143 and is rotatably connected with an inner wall of the second rotating hole 3143, the other end of the second rotating block 321 is fixedly connected with the second sleeve 322, an axis of the second rotating block 321 coincides with an axis of the second sleeve 322, a rotating sleeve 324 is slidably sleeved on the second sleeve 322, a connecting plate 3144 is fixedly disposed on the connecting block 314, the connecting plate 3144 is disposed at intervals with the second rotating block 321, a side surface of the connecting plate 3144, which is close to the second rotating block 321, is rotatably connected with the second rotating disc 323, the second rotating disc 323 is also in a fan-shaped structure, one side of the second rotating disc 323, which is close to the rotating sleeve 324 is provided with a plurality of second tooth grooves 3231, one end of the rotating sleeve 324 is provided with a plurality of tooth grooves 3231, which is matched with the second tooth grooves 3231, and a plurality of scales 3241 are correspondingly arranged on the second tooth grooves 3231; the positioning frame 21 comprises a positioning rod 211 and a positioning block 212, one end of the positioning rod 211 is inserted into the second sleeve 322, the other end of the positioning rod 211 is fixedly connected with the positioning block 212, and when the positioning rod 211 is adjusted to a proper angle, the positioning block 212 is fixedly connected with the tibia, so that the tibia positioning is completed.
Referring to fig. 3 and 6, an end of the second sleeve 322 remote from the second rotating block 321 is provided with a height-adjusting sleeve 325, a portion of the height-adjusting sleeve 325 is fixedly sleeved on the second sleeve 322, and for facilitating insertion of the positioning rod 211 into the second sleeve 322, a butt-joint groove 3251 matched with the second sleeve 322 is formed on the inner wall of the height-adjusting sleeve 325, so that the inner wall of the second sleeve 322 is flush with the inner wall of the height-adjusting sleeve 325. In order to improve the abutting strength between the rotating sleeve 324 and the second rotating disc 323, a second limiting ring 3242 is arranged on the inner wall, close to one end of the second sleeve 322, of the rotating sleeve 324, a second limiting spring 326 is further arranged in the rotating sleeve 324, one end of the second limiting spring 326 is fixedly connected with the height-adjusting sleeve 325, the other end of the second limiting spring 326 is fixedly connected with the second limiting ring 3242, and under the action of the second limiting spring 326, the second teeth 3241 can be abutted in the second tooth grooves 3231 more stably, so that the stability of the lateral adjusting piece 32 is improved.
In order to limit the rotation between the rotation sleeve 324 and the second sleeve 322, referring to fig. 7, a second tangential plane 3221 is disposed on an outer side surface of the second sleeve 322, a second limiting surface 3243 matched with the second tangential plane 3221 is also disposed on the second limiting ring 3242, and when the rotation sleeve 324 is sleeved on the second sleeve 322, the second tangential plane 3221 abuts against the second limiting surface 3243, so that the rotation sleeve 324 can only swing along the length direction of the mounting plate 25 under the action of the second rotation disc 323.
Referring to fig. 6 and 7, an internal threaded hole 3252 is formed in a side wall of the height-adjusting sleeve 325, a locking screw 3253 is screwed into the internal threaded hole 3252, a locking groove 2111 matched with the locking screw 3253 is formed in the positioning rod 211, the locking groove 2111 is formed along the length direction of the positioning rod 211, when the positioning rod 211 is inserted into the height-adjusting sleeve 325 and the second sleeve 322, the locking groove 2111 is aligned with the locking screw 3253, when the positioning rod 211 is adjusted to a proper height, the locking screw 3253 is screwed, the locking screw 3253 is abutted against the inner wall of the locking groove 2111 to fix the positioning rod 211, and by arranging the locking groove 2111, the positioning rod 211 is conveniently fixed, and on the other hand, the rotation of the positioning rod 211 can be limited, so that the positioning accuracy is improved.
The implementation principle of the embodiment of the application is that after a leg rest 1 is worn and fastened on the lower limb of a patient, CT is taken on the lower limb of the patient, the included angle between the diaphysis of the tibia of the patient and the developing needle 23 in the forward direction and the lateral direction is measured on a CT sheet, then the included angle between the positioning rod 211 and the tibia in the forward direction is adjusted through a forward adjusting piece 31, the included angle between the positioning rod 211 and the tibia in the lateral direction is adjusted through a lateral adjusting piece 32, the positioning of the positioning rod 211 is completed, and finally a positioning block 212 is fixedly connected with the tibia, and bone cutting is started. The application can accurately position the included angle between the tibia diaphysis and the positioning rod 211 by combining with CT technology, thereby improving the accuracy of positioning the tibia, and can adjust the angle of the positioning rod 211 in a multi-angle manner by the multi-direction adjusting component 3, thereby being convenient for adjusting the positioning rod 211 in the positioning process.
The embodiment of the application also discloses a method for positioning the tibia extramedullary osteotomy, which comprises the following steps of:
S1, before an operation, a leg rest 1 is worn on the lower limb of a patient and is fastened with a buckle 13 through a tightening belt 12;
S2, CT imaging is carried out on the right position and the side position of the lower limb of the patient;
s3, measuring the included angles between the tibia diaphysis of the patient and the developing needle 23 on the right position and the side position according to the CT result in the step S2;
s4, in operation, the leg rest 1 in the step S1 is worn on the lower limb of a patient, a multidirectional adjusting assembly 3 is arranged on the leg rest 1, and the multidirectional adjusting assembly is fixed by a positioning pin 243;
s5, adjusting the positioning rod 211 to a proper angle through the multidirectional adjusting assembly 3 according to the included angle measured in the step S3;
s6, adjusting the height of the positioning rod 211 and locking, fixing the positioning block 212 with the tibia of the patient, and performing tibia osteotomy to obtain a tibia plane on which the artificial prosthesis is installed.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore, all equivalent changes according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.
Claims (6)
1. The utility model provides a shin bone marrow outside osteotomy positioner, its characterized in that includes leg rest (1) and locating component (2), locating component (2) include locating rack (21), mount pad (24), a plurality of locating plate (22) and a plurality of development needle (23) one-to-one set up, locating plate (22) are fixed to be set up on leg rest (1), set up on locating plate (22) be used for the installation to correspond mounting hole (221) of development needle (23), both sides of leg rest (1) all are provided with mount pad (24), are provided with mounting plate (25) between two mount pad (24), mounting plate (25) with mount pad (24) detachable connection, be provided with on mounting plate (25) can the multidirectional regulation subassembly (3) of multi-angle adjustment locating rack (21);
The multidirectional adjusting assembly (3) comprises a forward adjusting piece (31) and a lateral adjusting piece (32), wherein the forward adjusting piece (31) comprises a first rotating block (311), a first rotating disc (312), a first sleeve (313) and a connecting block (314), one end of the first rotating block (311) is rotationally connected with the mounting plate (25), the other end of the first rotating block (311) is fixedly connected with the first sleeve (313), a connecting hole (3141) matched with the first sleeve (313) is formed in the connecting block (314), the first rotating disc (312) is rotationally connected with the mounting plate (25), a plurality of first tooth grooves (3121) are formed in one side, close to the connecting block (314), of the first rotating disc (312), and a first tooth (3142) matched with the first tooth groove (3121) is arranged on the connecting block (314), and the lateral adjusting piece (32) can drive the positioning frame (21) to reciprocate;
The side direction regulating member (32) comprises a second rotating block (321), a second sleeve (322) and a second rotating disc (323), one end of the second rotating block (321) is rotationally connected with the connecting block (314), the other end of the second rotating block (321) is fixedly connected with the second sleeve (322), a rotating sleeve (324) is sleeved on the second sleeve (322), a connecting plate (3144) is fixedly arranged on the connecting block (314), the side surface, close to one side of the second rotating block (321), of the connecting plate (3144) is rotationally connected with the second rotating disc (323), a plurality of second tooth grooves (3231) are formed in one side, close to the rotating sleeve (324), of the second rotating disc, a second tooth groove (3241) matched with the second tooth groove (3231) is arranged on the rotating sleeve (324), the positioning frame (21) comprises a positioning rod (211) and a positioning block (212), one end of the positioning rod (211) is inserted into the second sleeve (322), and the other end of the positioning rod (211) is fixedly connected with the positioning rod (212).
2. The tibia extramedullary osteotomy positioning device as in claim 1, wherein a limit sleeve (315) is disposed at one end of the first sleeve (313) far away from the first rotating block (311), the limit sleeve (315) is sleeved on the first sleeve (313), the connecting block (314) is slidably sleeved on the first sleeve (313) through the connecting hole (3141), a first limit ring (3151) is fixedly disposed on an inner wall of the connecting hole (3141) near to one end of the first rotating block (311), a first limit spring (316) is further sleeved on the first sleeve (313), one end of the first limit spring (316) is fixedly connected with the first limit ring (3151), and the other end of the first limit spring (316) is fixedly connected with the limit sleeve (315).
3. The tibia extramedullary osteotomy positioning device as in claim 1, wherein a height-adjusting sleeve (325) is provided at one end of the second sleeve (322) far away from the second rotating block (321), the height-adjusting sleeve (325) is fixedly sleeved on the second sleeve (322), a second limit ring (3242) is provided on an inner wall of the rotating sleeve (324) near one end of the second sleeve (322), a second limit spring (326) is further provided in the rotating sleeve (324), one end of the second limit spring (326) is fixedly connected with the height-adjusting sleeve (325), and the other end of the second limit spring (326) is fixedly connected with the second limit ring (3242).
4. The tibia extramedullary osteotomy positioning device as in claim 3, wherein an internal threaded hole (3252) is formed in a side wall of the height-adjusting sleeve (325), a locking screw (3253) is screwed into the internal threaded hole (3252), a locking groove (2111) matched with the locking screw (3253) is formed in the positioning rod (211), and the locking groove (2111) is formed along a length direction of the positioning rod (211).
5. The tibia extramedullary osteotomy positioning device as in claim 1, wherein the mounting seat (24) is provided with a mounting groove (241) matched with the mounting plate (25), a first positioning hole (242) is formed in a side wall of the mounting groove (241), a positioning pin (243) is inserted into the first positioning hole (242), two ends of the mounting plate (25) are provided with second positioning holes (251), and the positioning pin (243) and the second positioning holes (251) are matched and fixed with the mounting plate (25).
6. The tibia extramedullary osteotomy positioning device as in claim 1, wherein a plurality of tightening straps (12) and a plurality of buckles (13) are respectively arranged on two sides of the leg and foot frame (1), the tightening straps (12) are arranged in one-to-one correspondence with the buckles (13), and the tightening straps (12) are matched with the corresponding buckles (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310358084.5A CN116269625B (en) | 2023-04-06 | 2023-04-06 | Tibial extramedullary osteotomy positioning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310358084.5A CN116269625B (en) | 2023-04-06 | 2023-04-06 | Tibial extramedullary osteotomy positioning device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116269625A CN116269625A (en) | 2023-06-23 |
| CN116269625B true CN116269625B (en) | 2025-09-05 |
Family
ID=86820525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310358084.5A Active CN116269625B (en) | 2023-04-06 | 2023-04-06 | Tibial extramedullary osteotomy positioning device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116269625B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932606A (en) * | 2021-01-29 | 2021-06-11 | 北京市春立正达医疗器械股份有限公司 | Adjustable tibia osteotomy guider |
| CN114795381A (en) * | 2022-03-30 | 2022-07-29 | 南阳市第二人民医院 | External rotation osteotomy adjuster for knee joint replacement surgery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4796943B2 (en) * | 2006-11-20 | 2011-10-19 | 日本メディカルマテリアル株式会社 | Osteotomy guide instrument for proximal tibia |
| KR101513289B1 (en) * | 2014-12-16 | 2015-04-20 | 주식회사 알푸스 | Tibia reverse rotation apparatus and leg adjustment method using the same |
| CN214761628U (en) * | 2021-01-20 | 2021-11-19 | 北京积水潭医院 | Prosthesis capable of extending joint of lower limb |
-
2023
- 2023-04-06 CN CN202310358084.5A patent/CN116269625B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932606A (en) * | 2021-01-29 | 2021-06-11 | 北京市春立正达医疗器械股份有限公司 | Adjustable tibia osteotomy guider |
| CN114795381A (en) * | 2022-03-30 | 2022-07-29 | 南阳市第二人民医院 | External rotation osteotomy adjuster for knee joint replacement surgery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116269625A (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9138237B2 (en) | Total joint instrumentation and method for use | |
| CN112932606B (en) | Adjustable tibia osteotomy guider | |
| US5376093A (en) | Tibiofemoral alignment guide | |
| CN111759397B (en) | A femoral condyle distal bone defect osteotomy locator | |
| JP2609411B2 (en) | Femur cutting guide | |
| US8403935B2 (en) | Adjustable revision guide | |
| CN109846528B (en) | Joint replacement surgery auxiliary positioning method and system based on inertial navigation | |
| JPH07501966A (en) | External alignment method | |
| US10463379B2 (en) | Customized surgical cutting guide for total knee replacement and method for making thereof | |
| EP0857463A2 (en) | Tibial plateau resection guide | |
| CN107961056B (en) | Force line measuring angle positioning device for osteotomy around knee joint | |
| JP2003503096A (en) | Tibial plateau resection guide | |
| JPH02289234A (en) | Measuring implement for measuring variation of tensile applied to implant ligament and measuring method therefor | |
| JP2000287983A (en) | Thigh bone extramedullary clamp guide device for artificial patella replacing technique | |
| CN215994136U (en) | Adjustable thighbone cuts bone apparatus | |
| CN111643195A (en) | Knee joint tissue balancer | |
| US9005208B2 (en) | Ligament balancing femoral trial | |
| KR20080113960A (en) | Cutting guide module for knee joint surgery and method of use | |
| AU2021104492A4 (en) | Orthopedic brace for knee joint | |
| CN109009477B (en) | Femur measuring device | |
| RU2676527C1 (en) | Pattern for determination of suitable for patient sized implant of femoral bone endoprosthesis of knee joint | |
| CN117481742B (en) | Tibial side guide plate and ankle joint guide plate assembly having the same | |
| CN103491882B (en) | Patient-specific repositioning test blocks | |
| CN109350176B (en) | Knee joint osteotomy system with verification function | |
| CN116269625B (en) | Tibial extramedullary osteotomy positioning device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |