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WO2007019870A1 - Systeme d'usinage pour traiter un os du corps d'un etre vivant - Google Patents

Systeme d'usinage pour traiter un os du corps d'un etre vivant Download PDF

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Publication number
WO2007019870A1
WO2007019870A1 PCT/EP2005/008775 EP2005008775W WO2007019870A1 WO 2007019870 A1 WO2007019870 A1 WO 2007019870A1 EP 2005008775 W EP2005008775 W EP 2005008775W WO 2007019870 A1 WO2007019870 A1 WO 2007019870A1
Authority
WO
WIPO (PCT)
Prior art keywords
sonotrode
processing system
implant
bone
tool
Prior art date
Application number
PCT/EP2005/008775
Other languages
German (de)
English (en)
Inventor
Diethard Fohr
Achim Hess
Original Assignee
A & M Electric Tools Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by A & M Electric Tools Gmbh filed Critical A & M Electric Tools Gmbh
Priority to PCT/EP2005/008775 priority Critical patent/WO2007019870A1/fr
Publication of WO2007019870A1 publication Critical patent/WO2007019870A1/fr

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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
    • A61B17/1662—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1664—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip
    • A61B17/1668—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
    • 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
    • A61B17/1604—Chisels; Rongeurs; Punches; Stamps
    • 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
    • A61B17/1613—Component parts
    • A61B17/1628—Motors; Power supplies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00477—Coupling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/320078—Tissue manipulating surface

Definitions

  • the invention relates to a processing system for treating a bone of a living body with the features according to the preamble of claim 1, a use of this processing system and a use of an implant.
  • implants are inserted into the bones of the body.
  • Such implants may be, for example, parts of artificial hip joints, anchors for artificial teeth, nails for fixing complicated fractures or the like.
  • drilling holes are introduced into the exposed and prepared bone, which are provided for receiving a mounting portion of the implant.
  • Drills of known construction generate a rotational movement of the drill, which cuts or cuts the receiving bore with a circular cross-section in the bone material.
  • the implant is inserted with its Befest Trentsabs ⁇ hnitt in the prepared receiving bore. After a process of wound healing, the bone injured by the receiving bore grows around the implant.
  • the execution of the receiving bore and the associated injury of the bone material can u. U. cause significant impairment of the living organism.
  • the required size of the circular bore cross section can weaken the bone excessively and lead to impairments in resilience.
  • the resulting frictional heat must be observed, which must not exceed a limit of, for example, 50 ° C in view of the risk of protein clotting. Compliance with the required hygienic conditions is difficult.
  • the invention has for its object to provide a processing system with which a targeted treatment of a bone can be done while minimizing the inevitable injury to the bone material.
  • the invention is further based on the object to solve a bone-fixed implant simplified.
  • the invention is still based on the object of specifying a suitable drilling tool for drilling the receiving bore in the bone. This object is achieved by using the implant as a drilling tool having the features of claim 16.
  • the tool is designed as in at least one natural frequency resonating sonotrode.
  • the machine tool has a vibration exciter acting on the sonotrode.
  • the natural vibration frequency of the sonotrode held on the machine tool and the excitation frequency of the vibration exciter are coordinated with one another to produce a resonant oscillation of the sonotrode.
  • the excitation frequency and the natural vibration frequency are preferably above 10 kHz and in particular in the ultrasonic range.
  • the vibration generator is expediently designed as a piezoelectric exciter.
  • a boring section of the sonotrode has the form of a fastening section of the implant accommodated in the bone by the receiving bore.
  • a targeted treatment of a bone can be carried out with minimal damage to the bone material.
  • the sonotrode clamped in the machine tool is vibrated by the vibration exciter in natural vibration or in resonance, wherein at least one natural vibration of the sonotrode is preferably excited in the axial direction.
  • several eigenmodes can be stimulated simultaneously, whereby, for example, longitudinal, bending and / or torsional vibrations can be set in any suitable combination.
  • the sonotrode which is so naturally vibrated, is brought to the bone.
  • the sonotrode acts as a processing tool due to its high-frequency vibration and contributes as a result their vibratory interaction with the bone from the bone material.
  • the bone material is accurately copied precisely in the form of a negative image of the fastening section, without requiring any shaping intervention by the operator.
  • the receiving bore is formed as a negative image of the drill section and thus of the attachment portion into which the implant is then inserted.
  • the same shape of sonotrode and implant can here mean identity of the outer dimensions, according to which the implant is received without play in the receiving bore.
  • the implant is driven into the receiving bore and clamped under bias held in the bone.
  • the implant is driven into the receiving bore and clamped under bias held in the bone.
  • the sonotrode as an implant or when using the implant as a sonogram.
  • the bone removal takes place precisely in the contour of the attachment section of the implant to be received by the bone.
  • a receiving bore in the bone forms, which encloses the attachment section of the implant contour-accurate and backlash-free. It is exactly the amount of bone removed, which is required to receive the implant.
  • the removal of the bone material and thus the injury of the bone is reduced to the minimum required.
  • the contour-accurate execution of the receiving bore also avoids the formation of areas with too narrow a cross-section, which can otherwise lead to a tension of the bone relative to the implant used.
  • the bone is weakened as little as possible by the introduced bore and receives after implanting the implant a maximum load capacity.
  • the implant After the preparation of the receiving bore, the implant can remain directly in the receiving bore without further removal, whereby the risk of wound contamination is reduced.
  • additional, cavity-filling cement can be dispensed with.
  • For the healing process and a safe, resilient ingrowth of the implant only an extremely small amount of bone material must be replicated, whereby the burden on the living organism is minimized.
  • the processing system according to the invention can also be used for releasing the inserted or ingrown implant.
  • the machine tool is for example to a Prosthesis implant or an inserted bone nail attached, wherein the implant is set in resonance vibration. As a result, this dissolves from the surrounding bone material without the receiving hole increases. The implant can be removed without additional damage to the bone.
  • the machine tool comprises a device for statically fixed and in particular rotationally fixed, releasable clamping of the sonotrode.
  • the attachment portion of the implant which is provided for insertion into the receiving bore of the bone, and also the bore portion of the sonotrode provided with an at least partially non-circular cross-section.
  • the receiving bore is produced solely by their natural vibration, which also receives a non-circular cross-section.
  • the non-circular cross-section of attachment portion and receiving bore causes a positive rotation.
  • the sonotrode and also the attachment portion of the implant is provided with at least one projection, which protrudes radially relative to a longitudinal axis of the attachment portion for generating an undercut.
  • the sonotrode with the radially projecting projection in the axial direction is introduced into the bone material.
  • a common rotation of the machine tool and the sonotrode can take place, as a result of which the projection excited to vibrate is received in the receptacle. Mebohrung an undercut training.
  • an undercut between the projection of the implant and the receiving bore forms, which secures the implant in the axial direction in a form-fitting manner.
  • the implant is securely held in place and secured against an unintentional reli-displacement.
  • the sonotrode is provided with a suction / irrigation channel.
  • a cooling liquid can be rinsed during the drilling process, which keeps the temperature of the sonotrode and the surrounding bone material within limits and thus avoids protein coagulation. It may be provided a closed cooling circuit without wound contact.
  • the cooling liquid or cooling air is expediently pumped into the receiving bore through a section of the suction / irrigation channel extending on the inside of the sonotrode, which allows a suitable irrigation pressure without excessive leakage losses.
  • a position-independent supply of the flushing medium is possible, which is safe even when lying patient or horizontally mounted holes.
  • a further section of the suction / flushing channel is designed as an externally open channel.
  • the channel expediently extends obliquely to the longitudinal axis of the sonotrode and in particular helically around the sonotrode.
  • the cooling and rinsing effect adjusts to the entire processing surface.
  • the oblique, in particular helical course prevents the contour of the channel-shaped suction / irrigation channel during axial feed of the sonotrode on the working surface or the bore wall is formed. It may also be advantageous to provide a reverse flow direction. watch sucked off at the cooling liquid or air. In both cases, in addition to the cooling also a rinsing occurs, which eliminates worn bone material.
  • the clamping device preferably has a plurality of holding means for receiving different sonotrodes. Especially in the execution of mounting holes with complex geometry or multi-part implants are different sonotrodes without major retooling the drill for the surgeon directly available. The work progress when applying the sonotrode (s) is increased, which helps to relieve the patient.
  • the tensioning device is revolver-like designed with respect to a housing of the machine tool rotatable. If a change between different sonotrodes should be necessary, this can be manufactured with a simple handle.
  • the rotatability of the clamping device also allows a relative orientation of the currently active sonotrode with respect to the machine tool according to any choice of the user. In difficult-to-reach places, the clarity and, consequently, the accuracy of the bore or other machining execution can be increased.
  • the sonotrode is expediently arranged with its drilling section eccentrically to a central axis of the machine tool.
  • the machine tool need not be kept in alignment with the bore to be executed. The space requirement or the size of the exposed surgical wound opening is reduced.
  • FIG. 1 is a perspective view of a first embodiment of a processing system according to the invention with a piezoelectric machine tool and a sonotrode clamped thereto for producing a receiving bore for an implant using the example of a hip joint prosthesis,
  • FIG. 3 shows a perspective view of an implant which is inserted into a receiving bore made in a bone with the sonotrode according to FIG. 1;
  • FIG. 4 shows a perspective schematic representation of a further exemplary embodiment of the implant in the region of its attachment section with two projections projecting radially from it;
  • Fig. 5 is a schematic representation of the bone to be treated with a cross-sectional view of the implant of FIG. 4 in use as a drilling tool after carrying out the receiving bore to form an undercut.
  • FIG. 1 shows a perspective view of a first embodiment of a packsssys- invention 3, which is provided for producing a receiving bore 20 shown schematically in FIG. 3 in a bone 19 of a living body for an implant 23 (FIG. 3).
  • the processing system comprises a processing tool 1, a hand-held machine tool 2 and the implant 23.
  • the machine tool 2 has a housing 8, in which a not shown in detail, executed in the form of a piezoelectric vibrator 4 is arranged.
  • a control electronics and an electrical power supply (not shown) for the vibration generator 4 are arranged in a separate housing, also not shown, and connected via supply cable.
  • a mains voltage supply or a battery can be provided.
  • a rear handle 14 is formed at the end of the housing 8 facing away from the machining tool 1, a rear handle 14 is formed.
  • a second, front handle 15 is fastened by means of a quick-clamping device 16 and can be pivoted about a longitudinal axis 13 of the housing 8 after loosening the Sehne11Spann worn 16 to achieve an ergonomic handle assembly.
  • a clamping device 5 is provided, on which the machining tool 1 is releasably secured.
  • the clamping device 5 carries a total of four indicated holding means 17 for receiving various tools 1, in which case the better overview sake of half only a machining tool 1 is shown clamped.
  • the clamping device 5 is revolver-like with respect to the housing 8 of the machine tool 2 rotatable about a longitudinal axis 13 of the machine tool 2 and locked in a desired angular position, so that the user can set the machining tool 1 in a desired relative angular position relative to the housing 8 before starting work.
  • this selected rotational position is fixed - the tensioning device 5 does not rotate rotationally about the longitudinal axis 13.
  • a drilling section 24 of the machining tool 1 lies with its longitudinal axis eccentrically parallel to the longitudinal axis 13 of the machine tool 2.
  • the machining tool 1 is statically fixed to the associated holding means 7 of the clamping device 5 and in particular rotationally fixed, but releasably clamped.
  • the machining tool 1 is embodied as a sonotrode 3 oscillating elastically in at least one natural frequency.
  • the vibration exciter 4 and the sonotrode 3 are matched to one another such that the exciter frequency of the vibration exciter 4 corresponds at least approximately to a natural vibration frequency of the sonotrode 3 held on the tensioning device 5.
  • the vibration generator 4 generates an excitation oscillation, which is preferably a translatory oscillation in the direction of the longitudinal axis 13.
  • the excitation vibration generated by the vibration generator 4 is transmitted to the sonotrode 3 by means of the tensioning device 5.
  • gene which begins due to their tuned natural frequency in at least one eigenform to swing and thereby gets into resonance.
  • a vote is made such that either the horn 3 is uniformly excited to a natural vibration, or that sets a natural mode, in particular in a drilling section 24 at a free end of the sonotrode 3 areas with pronounced Form vibration amplitude.
  • the drilling section 24 at the free end of the sonotrode 3 is provided in the bone 19 for producing a receiving bore 20 indicated schematically in FIG. 3.
  • the excitation frequency of the vibration generator 4 and the thus excited natural frequency of the sonotrode 3 are both above 10 kHz and are in the illustrated embodiment in the ultrasonic range, here preferably at about 20 KHz.
  • the control electronics described above has a control circuit which continuously adapts the exciter frequency to the inherent oscillation frequency which changes within certain limits. Wear on the sonotrode 3, temperature-related changes in length or a clamping effect of the sonotrode 3 resting on the bone material, which have an effect on the natural frequency, are compensated.
  • a basic tuning of the sonotrode 3 to the exciter frequency of the vibration exciter 4 takes place by introducing a tuning recess 25 at the free end of the sonotrode 3.
  • the sonotrode 3 in particular in its drill section 6 has a non-round, in the embodiment shown approximately rectangular cross-section. It can also be any other cross-sectional shapes in preferably non-circular, but possibly also be round or conical or cylindrical configuration advantageous.
  • the sonotrode 3 is still provided with a suction / irrigation channel, which is not shown here in detail for the sake of clarity, and in its embodiment corresponds to the suction / irrigation channel 12 according to FIG.
  • FIG. 1 Another embodiment of a sonotrode 3 is shown in a perspective view in FIG.
  • a circular disk-shaped retaining flange 26 of the sonotrode 3 is provided for attachment to one of the retaining means 7 according to FIG.
  • the circular-section-shaped flange 26 is adjoined by the drill section 24, the cross-section of which continuously tapers in the vertical direction and in the direction of the free end. In the width direction, the cross section remains substantially constant.
  • the sonotrode 3 is provided with a suction / irrigation channel 12, which is guided on the inside by the sonotrode 3 with a channel portion 30 according to the representation indicated by dashed lines and opens into the free end of the sonotrode 3.
  • a further channel section 31 of the suction / flushing channel 12 extends on the outside of the drilling section 24 of the sonotrode 3 and is open towards the free end and also to the peripheral side of the sonotrode 3.
  • the open area of the suction / flushing channel 12 is bounded on the outside by the receiving bore 20 in the bone 19 (FIG. 3).
  • the direction of flow may, if necessary, be selected by the machine tool 2 in the direction of the free end of the sonotrode 3 or in the opposite direction, whereby in the first case, a blowing and in the second case, a sucking flushing flow.
  • the flushing medium is preferably pumped in the direction of arrows 32 centrally through the inner channel section 30 into the receiving bore 20 (FIG. 3) and from there back through the outer channel section 31.
  • the flushing pressure is suitably smaller than '10OkPa, in order to prevent absorption of the flushing medium through the bone 19 and the blood vessels located therein.
  • trough-shaped suction / flushing channel 12 may also be a closed execution appropriate, which is open only at the free end of the sonotrode 3. It may also be advantageous to provide an internally closed channel in which a coolant circulates.
  • the running in the form of an outwardly open channel suction / flushing channel 12 extends helically around the sonotrode 3 around and extends over the entire length of the drill section 24.
  • the helical circulation causes the suction / irrigation channel 12 not to the machined surfaces at axial feed.
  • the cross-sectional contour of the receiving bore 20 (FIG. 3) to be machined is formed during axial feed by the likewise helical sections of the drill section 24 lying between the helices of the suction / irrigation channel 12. In place of a helical circulation even a slight inclination of the channel portion 31 may be appropriate. Also, a design with a plurality of fluidically parallel channel sections 31 may possibly be advantageous.
  • Width and depth of the suction / flushing channel 12 can be adjusted within certain limits, thereby also effecting a tuning of the resonance frequency of the sonotrode 3 to the excitation frequency of the vibration generator 4 (FIG. 1).
  • the suction / irrigation channel 12 also acts as a tuning recess 25.
  • a coupling between two vibrational degrees of freedom can also be effected.
  • the helical shape of the suction / irrigation channel leads to a coupled torsional vibration of the drilling section 24, which, with suitable tuning, can also resonate.
  • FIG. 3 shows an exemplary embodiment of an implant 23, which is designed as part of a hip joint prosthesis.
  • the implant 23 comprises a fastening section 6, which is held in a receiving bore 20 in the bone 19.
  • the length of the attachment portion 6 is about 100 mm. From a sawed for example with the machine tool 2 of FIG. 1 end face 28 of the bone 19 protrudes only a retaining pin 27 for a ball joint, not shown.
  • the attachment portion 6 corresponds in its enveloping shape at least approximately exactly to the bore portion 24 of the sonotrode 3 of FIG. 1. It lacks only the formation of the suction / flushing channel 12th
  • FIGS. 1 to 3 a method for inserting the implant 23 into the bone 19 of a living body will be described below.
  • the free end of the bone to be drilled 19 (Fig. 3) introduced.
  • the drilling section 24 (FIG. 2) oscillates in at least one natural frequency and thus carries material out of the bone 19 (FIG. 3) in accordance with the transverse and longitudinal contour of the bore section 24.
  • a feed is carried out by hand in the axial direction. Further movements of the sonotrode 3 are not provided. In particular, the sonotrode 3 does not spin. Also forming tilting or pivoting movements or a lateral guide are not provided.
  • the sonotrode 3 according to FIG. 2 is designed as a pre-machining tool, with which the receiving bore 20 (FIG. 3) is prepared. In a step-like machining is then carried out a further drilling with the sonotrode 3 shown in Fig. 1 in the same manner previously described.
  • the sonotrode 3 shown in FIG. 1 is in the region of its drill section 24 with respect to. the outer contour geometrically performed almost identical to the attachment portion 6 of the implant 23 shown here in Fig. 3.
  • the receiving bore executed by the drilling section 24 (FIG. 1) thus corresponds in its contour to the shape of the fastening section 6 held therein almost identically.
  • the bone material in the bone 19 (FIG. 3) is exactly removed in the shape that corresponds to the contour of the attachment section 6 (FIG. 3) in the longitudinal and transverse directions, with the receiving bore 20 (FIG. 3) being guided solely by the axial advance the sonotrode 3 forms a negative image of the fixing portion 6. Meanwhile, a coolant is conveyed through the suction / flushing channel 12 as shown in FIG. 2, whose flow adjacent to the channel-shaped, radially outwardly open suction / flushing channel 12 is also guided by the enclosing peripheral wall of the receiving bore 20 (FIG. The resulting coolant flow leads to a cooling of the implant 1 and the surrounding bone 19 and also exerts a rinsing effect on the ablated bone material.
  • the receiving bore 20 (FIG. 3) can be drilled with a suitable sonotrode 3, for example according to FIG. 2, and then the sonotrode 3 can be removed.
  • the machining process can be continued by utilizing the high-frequency natural oscillation with another sonotrode 3 clamped to one of the holding means 7 (FIG.
  • the receiving bore 20 (FIG. 3) is bored using the sonotrode 3 shown in FIG. 1, the implant 23 (FIG. 3) then being fastened with its fastening section 6 in the receiving bore 20 of the bone 19 (FIG ) can be used with an exact fit.
  • the receiving bore 20 encloses the fastening portion S at least approximately free of play. Only a free end 29 of the implant 23 can lie in a hollow or soft region of the bone 19.
  • Fig. 1 also shows that the drill portion 24 tapers in the direction of its free end.
  • the tapered peripheral walls serve as a drilling tool with increasing drill feed by successively expanding the drilled receiving bore 20 in the radial direction.
  • the radial widening of the receiving bore 20 can be reduced to a minimum.
  • ges undersize regarding. the cross-section of the mounting portion 6 are adjusted, so that the driven implant 23 is clamped under bias.
  • a radial undersize of the receiving bore 20 of about 0.15 mm is desired.
  • the illustration according to FIG. 3 also shows that the inserted implant 23 can thereby be removed from the bone 19, in which it is used as the sonotrode 3.
  • its protruding portion can be connected to the machine tool, wherein the implant 23 acts as a sonotrode 3. Excited to resonant vibrations, the implant 23 vibrates off the bone material and can be removed from the receiving bore 20.
  • FIG. 4 An alternative design of the sonotrode 3 or of the implant 23 is shown in FIG. 4 as a detail in the region of the attachment section 6. Accordingly, adjoining an approximately cylindrical shaft 17 of the attachment portion 6 at the free end of a hammer-shaped head through which two projections 9 are formed, which are diametrically opposite relative to a longitudinal axis 10 of the mounting portion 6 and radially to the longitudinal axis 10 on the peripheral contour of Mounting portion 6 protrude.
  • the schematic representation according to FIG. 4 shows, by way of example only, the arrangement of two radially protruding projections 9. It is at least one such radial projection 9 for the production to provide an undercut 11 shown in Fig. 5. However, it is also possible for any other number of protrusions 9 to be suitable, which can be varied in an application-specific manner in terms of their geometric configuration and also relative position to the fastening section 6.
  • FIG. 4 the method for introducing the receiving bore 20 initially in the same manner as described in connection with FIGS. 1 to 3.
  • a further method step results from the combination of FIGS. 4 and 5.
  • the embodiment of the implant 23 according to FIG. 4 is used in accordance with the representation of FIG. 5 in the manner described above as a sonotrode 3 or as a drilling tool.
  • the implant 23 clamped on the machine tool 2 (FIG. 1) forms the sonotrode 3, or finds use as a sonotrode 3 for drilling the receiving bore 20 indicated in FIG. 5 into the bone 19.
  • a cross section of the receiving bore 20 is formed, which is formed not only by the shaft 17 shown in cross-section, but by the peripheral contour of the shaft 17 together with the radially protruding projections 9.
  • the running machine tool 2 (FIG. 1) is pivoted together with the clamped implant 23 in a direction of rotation arranged by an arrow 22 about the longitudinal axis 10 of the fastening section 6, wherein the projections 9 excited to vibrate, depending on the size of the rotation angle form in the direction of rotation 22 indicated by a dashed line extended portion 21 of the receiving bore 20, in the corresponding drilling depth of the drilling tool 3 and the attachment portion. 6 lies.
  • the radially protruding projections 9 lie in this extended region 21 until they have reached the position 9 ', which is shown here only by way of example in a 90 ° rotation angle and may also have a different angle of rotation.
  • the implant 23 is secured in a form-fitting manner in the axial direction with respect to the longitudinal axis 10 and can thus remain in the receiving bore 20.
  • the sonotrode 3 and the implant 23 may also be expedient to design the sonotrode 3 and the implant 23 separately with comparable geometry, wherein the implant 23 is inserted in a bayonet-like manner after removal of the sonotrode 3 into the receiving bore 20 and is held in a form-fitting manner with the projections 9.
  • the arrangement shown can also be used for drilling simple holes, for cosmetic or surgical shaping of the bone.
  • the implant 23 other parts, special fasteners or the like. be used in the bones. It can also milling and sawing work and a separation of muscle, tendon, connective tissue or the like. be made.

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Abstract

La présente invention concerne un système d'usinage pour traiter un os (19) du corps d'un être vivant. Le système d'usinage comprend outil (1) qui agit sur l'os (19) du corps de l'être vivant, une machine outil (2) manuelle qui entraîne l'outil (1), et un implant (23), l'outil (1) étant conçu pour réaliser une ouverture de réception (20) destinée à recevoir l'implant (23) dans l'os (19). L'outil (1) se présente sous la forme d'une sonotrode (3) qui entre en oscillation par résonance à au moins une fréquence propre. La machine-outil (2) présente un oscillateur (4) qui agit sur la sonotrode (3). La fréquence d'oscillation propre de la sonotrode (3) maintenue contre la machine-outil (2), et la fréquence de mise en oscillation de l'oscillateur (4) sont adaptées entre elles pour permettre l'oscillation par résonance de la sonotrode (3). Une section de perçage (24) de la sonotrode (3) a la forme d'une section de fixation (6) de l'implant (23), reçue dans l'ouverture de réception (20) pratiquée dans l'os (19).
PCT/EP2005/008775 2005-08-12 2005-08-12 Systeme d'usinage pour traiter un os du corps d'un etre vivant WO2007019870A1 (fr)

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PCT/EP2005/008775 WO2007019870A1 (fr) 2005-08-12 2005-08-12 Systeme d'usinage pour traiter un os du corps d'un etre vivant

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PCT/EP2005/008775 WO2007019870A1 (fr) 2005-08-12 2005-08-12 Systeme d'usinage pour traiter un os du corps d'un etre vivant

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439192A (en) * 2006-06-14 2007-12-19 Bosch Gmbh Robert Drive device for a tool holder and method of driving it
WO2015100289A3 (fr) * 2013-12-26 2015-10-22 Ethicon Endo-Surgery, Inc. Instrument de découpe d'os à ultrasons
WO2020182836A1 (fr) * 2019-03-11 2020-09-17 Bosonic Ag Dispositif de perforation d'os
EP4117557A4 (fr) * 2020-03-12 2024-02-21 Little Engine, LLC Procédé et appareil de préparation et d'implantation d'implants médicaux

Citations (5)

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GB2439192A (en) * 2006-06-14 2007-12-19 Bosch Gmbh Robert Drive device for a tool holder and method of driving it
GB2439192B (en) * 2006-06-14 2008-06-11 Bosch Gmbh Robert Drive device for a tool holder and method of driving it
WO2015100289A3 (fr) * 2013-12-26 2015-10-22 Ethicon Endo-Surgery, Inc. Instrument de découpe d'os à ultrasons
CN106068104A (zh) * 2013-12-26 2016-11-02 伊西康内外科有限责任公司 超声波骨切割器械
US9763674B2 (en) 2013-12-26 2017-09-19 Ethicon Llc Ultrasonic bone cutting instrument
CN106068104B (zh) * 2013-12-26 2019-10-18 伊西康内外科有限责任公司 超声波骨切割器械
EP3858267A1 (fr) * 2013-12-26 2021-08-04 Ethicon LLC Instrument de découpe d'os à ultrasons
WO2020182836A1 (fr) * 2019-03-11 2020-09-17 Bosonic Ag Dispositif de perforation d'os
US11571220B2 (en) 2019-03-11 2023-02-07 Bosonic Ag Device and method for punching bone
EP4117557A4 (fr) * 2020-03-12 2024-02-21 Little Engine, LLC Procédé et appareil de préparation et d'implantation d'implants médicaux

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