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WO2013067760A1 - Stylo d'échantillonnage de sang sans danger - Google Patents

Stylo d'échantillonnage de sang sans danger Download PDF

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Publication number
WO2013067760A1
WO2013067760A1 PCT/CN2012/001373 CN2012001373W WO2013067760A1 WO 2013067760 A1 WO2013067760 A1 WO 2013067760A1 CN 2012001373 W CN2012001373 W CN 2012001373W WO 2013067760 A1 WO2013067760 A1 WO 2013067760A1
Authority
WO
WIPO (PCT)
Prior art keywords
pen
latch
push rod
pen body
groove
Prior art date
Application number
PCT/CN2012/001373
Other languages
English (en)
Chinese (zh)
Inventor
施国平
赛尔吉奥·马罗尼
保罗·克莱希纳
Original Assignee
苏州施莱医疗器械有限公司
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 苏州施莱医疗器械有限公司 filed Critical 苏州施莱医疗器械有限公司
Publication of WO2013067760A1 publication Critical patent/WO2013067760A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
    • A61B5/15188—Constructional features of reusable driving devices
    • A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
    • A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/150022—Source of blood for capillary blood or interstitial fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150175—Adjustment of penetration depth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15103—Piercing procedure
    • A61B5/15107—Piercing being assisted by a triggering mechanism
    • A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
    • A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
    • A61B5/15188—Constructional features of reusable driving devices
    • A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape

Definitions

  • the present invention relates to a medical blood collection device, and more particularly to a safety type blood collection pen for use with a disposable blood collection needle.
  • the blood collection pen is a kind of launching device, usually used in conjunction with the -second blood collection needle.
  • the blood collection pen can be repeatedly used to make ffl, and the blood collection needle has been developed for the purpose of avoiding cross infection only for one-time use of the blood collection pen. History, among which the improvement of the blood collection pen has also gone through many stages. At present, the blood collection pen is going to a mature stage, but the safety in the development of the blood collection pen is still a concern of the technicians in the field.
  • the patent discloses a blood collection pen.
  • the operation method of the blood collection pen before use is: the first step, rotating the snoring pen cover; the second step, inserting the disposable 3 ⁇ 4 blood needle, and screwing off the blood stasis
  • the protective cap of the needle is: The third step is to rotate the cover of the pen; the fourth step is to pull the pen holder at the end of the blood collection pen to make the blood collection needle enter the locked state before launching, and then it can be used.
  • the design of the blood collection pen has a safety defect, that is, the second-step insertion of the disposable blood collection needle requires a certain thrust, which may cause the launching mechanism to advance into the lock before launch. State, at this time the user will accidentally touch the launch button and the lancet will fire immediately. This kind of false launch may directly cause harm to the user, so there is a safety hazard from the design of the blood collection pen.
  • the Chinese patent CN101518450A discloses a patent application for the invention of "piercing device".
  • the technical solution of the patent application can ensure that the blood needle is not inserted in advance when the blood vessel is inserted.
  • the locked state before launch the pen holder of the tail of the blood collection pen can be pulled only after the pen cover is closed, so that the launching mechanism enters the locked state before launching.
  • This design overcomes the above-mentioned safety defects, but brings another two aspects. The first is that the structure is complicated, some parts are difficult to manufacture, and the production cost increases.
  • the object of the present invention is to design a blood collection pen with good safety and relatively simple structure, which aims to solve the safety hazard of the above-mentioned blood collection pen during use and operation.
  • a safety type blood collection pen which is composed of a pen head and a pen body, and an ejection cavity is arranged inside the pen tip in the axial direction.
  • the front end of the ejection cavity is provided with a needle.
  • Hole, pen body is equipped with a shot and shot The spring is struck, and the head of the shooting rod is provided with the insertion of the blood collection needle.
  • the side of the pen body is provided with a trigger button.
  • the tail of the pen body is provided with a tail puller, and the rear end of the pen head serves as a first connecting end, and the front part of the pen body corresponds to the front end.
  • the first connecting end is provided with a second connecting end, and the innovation is that: the first connecting end is plugged and connected with the second connecting end.
  • the first connecting end is provided with a push rod protruding from the first connecting end and directed to the second connecting end.
  • the pusher is provided with a section of the pipe body along the axial direction of the pen body on the second connecting end, and the pipe body is slotted in the axial direction toward the pipe wall at one end of the push rod, and the slot is in the radial direction of the pen body.
  • the pipe wall Through the pipe wall.
  • the side of the shooting rod extends a resilient arm, the cantilever end of the elastic arm is provided with a latching head, the front part of the door head is provided with a latching tongue, and the rear part is provided with a latching hook; in the radial direction of the pen body, the latch The width of the head is greater than the width of the push rod.
  • the slot is formed by a sliding slot, a transition slot and a locking slot in the axial direction of the pen body.
  • the width of the sliding slot and the locking slot is greater than the width of the latch.
  • the width of the transition groove is larger than the width of the push rod and smaller than the width of the latch;
  • the connection between the sliding groove and the transition groove is formed with a blocking shoulder, and the connection between the transition groove and the locking groove is formed with a locking shoulder;
  • the trigger button is located Above the locking slot; the end of the push rod or / and the latch is provided with a push-slope - dd.
  • the latch head When the pen tip is separated from the pen body and the shooting magazine is in a free state, the latch head is located in the sliding slot, and when the blood collecting needle is inserted into the socket in this state, the insertion thrust forces the latch hook at the rear of the latch Blocking the shoulder fit, thereby preventing the latch from sliding from the sliding slot to the locking slot; when the pen tip is inserted into the pen body, the push rod is inserted into the sliding slot and the transition slot, and the pusher pushes the ramp to push the latch and during the insertion process
  • the elastic arm is bent and deformed toward the inner side of the pen body. When the tail puller is pulled backward in this state, the shooter drives the latch head through the elastic arm to cross the transition groove from below into the lock groove, and enters the locked state before launching.
  • the meaning of “front” in the “front end” and “front” refers to the shooting direction of the nib of the blood collection pen or the blood collection needle.
  • the “back end”, “rear” and “direction” The meaning of “after” is the opposite direction of the stroke of the blood collection pen or the direction of the blood collection needle.
  • the "pen body axial direction” refers to the axial direction of the pen body, and is also the direction between the pen tip of the blood collection pen and the tail of the pen, or the front and rear direction.
  • the “pen body radial direction” refers to the diameter direction of the pen body and also the lateral direction of the blood collection pen.
  • the firing mechanism of the blood collection pen is not triggered in order to allow the blood collection pen to pull out the pen tip while being to be launched.
  • a locking slope can be arranged at the end of the locking shoulder, and the locking slope faces the trigger button, and the locking slope and the pushing inclined surface form an intersection in the space, and when the tail pulls and pulls back to the original position, the elastic force of the shooting spring
  • the latch S at the front of the latch abuts against the latching bevel of the locking shoulder and the bayonet formed by the end of the push rod: when the trigger is pressed
  • the trigger button acts on the latch head, and the latch slides down the latching slope, and il to the unhook to enter the shooting state; in the locked state of the button, when the pen is pulled out from the pen body, the push rod slides The slot and the transition slot are withdrawn.
  • the latch slides up along the latching ramp surface to the top surface of the
  • the design principle of the present invention is: In order to solve the safety problem existing in the operation process of the blood collection pen, the present invention changes the design of the threaded connection between the past pen and the pen body to the design of the plug connection, and the pen and the pen
  • the connection between the body and the body is related to the safety of using the operation of the blood collection pen.
  • the push rod provided on the pen head and the slot provided on the pen body and the latch head provided on the elastic arm of the rod are used. The cooperation relationship between the two, so that the safety hazard of the operation of the blood collection pen is well solved.
  • the present invention has the following advantages and effects compared with the prior art:
  • the blood collection pen of the invention is inserted into the blood collection needle, and the latch is located in the sliding slot.
  • the insertion thrust moves 13 heads backward
  • the A hook at the rear of the latch is blocked by the blocking shoulder and stops moving backward. Therefore, the launching mechanism is not advanced into the locked state before the launch due to the insertion thrust. Only when the pen tip is inserted into the pen body can the tail handle be pulled, so that the launching mechanism enters the locked state before launching, thereby solving the safety hazard that the blood collecting pen may have when installing the blood collecting needle.
  • the invention relates the connection between the writing head and the pen body and the safety of using the operation blood collecting pen, and utilizes the insertion and extraction structure between the writing head and the pen body to solve the safety problem that may exist during the operation, the technology thereof
  • the scheme is reasonable in design, ingenious in design, simple in structure and reliable in work. It is a safe and practical blood-collecting pen.
  • FIG. 1 is a perspective view of an embodiment of a safety type blood collection pen according to the present invention.
  • FIG. 2 is a perspective exploded view of an embodiment of a safe blood collection pen of the present invention
  • Figure 3 is a cross-sectional view showing an embodiment of a safety type blood collection pen of the present invention.
  • Figure 4 is a state diagram of the safety type blood collection pen of the present invention when the pen tip is pulled out;
  • Figure 5 is a perspective view of the adjusting ring and the push rod in the pen of the safety type blood collection pen of the present invention
  • Figure 6 is a cross-sectional view of the adjusting ring and the push rod in the safe type of the blood-collecting pen tip of the present invention
  • Figure 7 is a perspective view of the shackle sleeve and the slot in the safe type of the blood-collecting pen body of the present invention
  • Figure 8 is an enlarged view of the slot in Figure 7;
  • Figure 9 is a front view of the plunger and the elastic body of the safe type of the bloodbrush pen of the present invention:
  • Figure 10 is an enlarged view of the elasticity t in Figure 9:
  • FIG. 1 is a state diagram of a safety blood collection pen of the present invention when a blood collection needle is installed;
  • Figure 12 is a front elevational view of the installation of the lancet cartridge thrust to move the latch back in the sliding slot:
  • Figure ⁇ is a plan view of Figure 12;
  • Figure 15 is a plan view of Figure 14;
  • Figure 16 is a state diagram of the inserted pen tip after the blood collection needle is installed in the safety type blood collection pen of the present invention
  • Figure 17 is a front elevational view of the insertion of the pen tip pusher through the door to push the plunger backward;
  • Figure 18 is a plan view of Figure 17:
  • Figure 19 is a front elevational view showing the push rod forcing the latch and the resilient arm to be bent and deformed toward the inside of the pen body when the pen tip is inserted;
  • Figure 20 is a plan view of Figure 9;
  • Figure 21 is a front elevational view of the latch as it moves across the transition slot from the transition slot and rearwardly as the tip is inserted;
  • Figure 22 is a plan view of Figure 21;
  • Figure 23 is a front elevational view of the latch head spanning the transition slot from below the transition slot after the pen tip is inserted;
  • Figure 24 is a plan view of Figure 23;
  • Figure 25 is a front elevational view of the rear pull tab of the tail puller through the elastic arm to drive the latch head from below to the transition slot into the lock slot:
  • Figure 26 is a plan view of Figure 25;
  • Figure 27 is a view showing that the latch of the front portion of the latch abuts against the latching slope of the locking shoulder and the bayonet formed by the end of the push rod when the tail puller returns to the original position, under the combined action of the spring force of the shooting spring and the resilient arm. And entering the locked state front view before launching;
  • Figure 28 is a plan view of Figure 27;
  • Figure 29 is a diagram showing the state of the compression type of the safety type blood collection pen of the present invention.
  • Figure 30 is an enlarged view of the state when the trigger button is pressed
  • Figure 31 is an enlarged view showing a state in which the latch is unhooked when the trigger button is pressed;
  • Figure 32 is a state diagram when the pen tip is pulled out in a locked state before launching
  • Figure 33 is a view of the latch rebounding when the pen tip is pulled out in the locked state before launching and locked at the locking shoulder t: ⁇ view;
  • Figure 34 is a plan view of Figure 33;
  • Figure 35 is a front view showing the failure of the trigger button pressing after the pen tip is pulled out in the locked state before launching;
  • Figure 36 is a plan view of Figure 35.
  • the safety type blood-staining pen is composed of a pen head 1 and a pen body 2, and the pen head 1 is assembled from the following four parts: an adjusting cap 3, an adjusting ring 4, and an elastic ring. 5 and adjust the inner core 6.
  • the perspective view of these four parts is shown in Figure 1.
  • the assembly diagram is shown in Figure 3.
  • the inner core of the adjusting inner core 6 is provided with an ejection cavity in the axial direction, and the front end of the ejection cavity is provided with a pinhole hole 37, and the inner core 6 and the adjusting ring 4 are adjusted to be welded or snap-fitted, and the cap 3 and the elastic ring 5 are adjusted.
  • the clip is fixed, and the adjusting cap 3 is set to adjust the head of the inner core 6.
  • the adjustment cap 3 is rotated, the adjustment cap 3 is axially moved relative to the adjustment inner core 6, thereby realizing the function of adjusting the depth of the butt.
  • the pen body 2 is assembled from the following twelve parts: a shooting rod 7, a shooting spring 8, a middle sleeve 9, a trigger button 10, a jacket 1], a needle release lever 2, an inner sleeve 13, a return spring 14, a indicating sleeve] 5, the tail handle] 6, transparent circle] 7 and the tail cap 18.
  • the perspective view of these twenty parts is shown in Figure 1, and the assembly diagram is shown in Figure 3.
  • the middle sleeve 9 is installed in the outer casing 1 1.
  • the front end of the middle sleeve 9 protrudes from the front end of the outer casing, and the middle sleeve 9 is tightly coupled with the outer casing 1 1 and fixedly connected, and the tail of the trigger button 10 is positioned in the middle.
  • the head of the trigger button 10 is seated on the button hole provided on the side of the outer casing 11.
  • the tail puller 16 is mounted on the tail of the outer casing 1 1 and is slidably connected to the outer casing 1].
  • the inner sleeve 13 is fixedly connected in the tail puller 16, and the tail end of the tail puller 16 is fixedly connected with a transparent ring 17 and a tail cap 18.
  • the needle removing lever 12 is slidably mounted on the outer sleeve 1 1 , and the needle pushing rod of the needle removing lever 12 extends into the interior of the rod 7 .
  • the shooting rod 7 is mounted in the middle sleeve 9 and is axially slidably connected with respect to the middle sleeve 9.
  • the head of the shooting rod 7 is provided with a socket 36 for inserting the blood collection needle 35, and the tail portion is provided with a shooting spring S, and the shooting spring 8 acts on the axial direction.
  • the return spring 14 acts between the inner sleeve 13 and the indicator sleeve 15 in the axial direction.
  • the rear end of the pen tip 1 serves as a first connecting end 19, and the front portion of the pen body 2 is provided with a second connecting end 20 corresponding to the first connecting end 19.
  • the first connecting end 19 is provided with three latches 38 corresponding to the latching pins 38 at the second connecting end 20 1 ; three jacks 39 are provided, thereby forming a plug between the first connecting end 19 and the second connecting end 20 connection.
  • a push rod 21 is provided on the end surface of the adjustment ring 4 of the first connecting end 19, and the push rod 21 is from the first The connecting end 19 extends and points to the second connecting end 20
  • a corresponding section of the push rod 21 is disposed along the ⁇ 9 1 of the second connecting end 20 along the axial direction of the body 2
  • the tubular body 22, the tubular body 22 is axially opened with a slot 23 toward the wall h of the push rod 21 - end, and the slot 23 extends radially through the tubular wall in the pen body 2.
  • a side of the shooter 7 extends a resilient arm 24, a cantilevered end of the resilient arm 24 is provided with a latching head 25, and a front end of the latching head 25 is provided with a latching tongue 26, a latch hook 27 is provided at the rear.
  • the width of the latch 25 is greater than the width of the push rod 21.
  • the slot 23 is formed by sequentially connecting a sliding slot 28, a transition slot 29 and a locking slot 30 on the body 2 of the pen body 2, in the radial direction of the pen body 2.
  • the width of the sliding groove 2S and the locking groove 30 is larger than the width of the latch 25, and the width of the transition groove 29 is larger than the width of the push rod 2], which is smaller than the width of the latch 25.
  • a blocking shoulder 31 is formed at a joint of the sliding groove 28 and the transition groove 29, and a locking portion 32 is formed at a joint of the transition groove 29 and the locking groove 30, and a latching slope 33 is provided at an end of the locking jaw 32.
  • the button 10 is located above the locking slot 30 and the latching ramp 33 faces the trigger button 10.
  • the pusher 21 or / and the end of the latch 26 are provided with a push ramp 34 that urges the ramp 34 to intersect the latch ramp 33 in space.
  • the latch head 25 is located in the sliding groove 28, and when the blood collecting needle 35 is inserted into the socket 36 in this state, the insertion is performed.
  • the thrust forces the latch hook 27 at the rear of the latch 25 to engage the blocking shoulder 31, thereby preventing the latch 25 from sliding from the sliding slot 28 toward the locking slot 30.
  • the insertion thrust causes the latch 25 to move rearwardly in the sliding groove 28, see Figs. 12 and 13.
  • the blocking shoulder 31 blocks the latch 25 from continuing to move backward, thereby stopping the backward movement, see Figs. 14 and 15.
  • the latch 25 is extended back into position by the firing spring 8.
  • the lancet 35 is installed, if the pen tip is not inserted 1, the entire lancet cannot pull the tail handle due to the blocking action of the shoulder 31. 6 Enter the locked state before launching. This is one of the important features of the present invention in order to achieve operational safety.
  • FIG. 21 and 22 show that the latch head 25 starts to cross the transition groove 29 from the lower side of the transition groove 29 and moves backward: FIG. 23 and FIG. Indicates that the latch 25 is inserted from the transition slot 29 after the pen 1 is inserted.
  • the lower part of the transition groove 29 is below.
  • Fig. 29 when the trigger button 10 is pressed, the trigger button 10 acts on the latch 25, and the latch 26 slides down the latch ramp 33 until the unhook enters the shooting state.
  • Fig. 30 and Fig. 31, shows the state in which the trigger button 10 0 is pressed
  • Fig. 31 shows the state in which the trigger button 0 is pressed and the latch 25 is unhooked.
  • the shooter 7 is retracted by the return spring 4 so that the tip of the blood collection needle 35 is not exposed after the launch.
  • Figs. 33 and 34 show that the latch 25 is smashed and locked on the locking shoulder 32 when the pen tip 1 is pulled out;
  • Fig. 35 and Fig. 36 show the trigger button 10 after the pen tip is pulled out. Press the failed plot. At this time, the entire blood collection pen is in a locked state, which is also an important feature of the present invention in order to achieve operational safety.
  • the present invention is mainly embodied in the following two aspects in order to realize the safe operation of the blood collection pen:
  • the insertion thrust does not cause the firing mechanism of the lance to advance into the locked state.
  • the firing mechanism of the blood collection pen will not enter the locked state in advance. This avoids the possibility of injury to the operator due to misoperation.
  • a transparent ring 17 is provided at the tail of the pen body 2, -ji: J1 is at the tail of the shooting rod 7.
  • Finger cot 15 is set [with red mark)' When the shooter 7 is in the locked state before launch, the finger cot 15 is axially inside the pen body 2.
  • the transparent ring ⁇ when the operator observes the transparent ⁇ ] 7
  • the red mark when the red mark is used, it indicates that the launching mechanism of the blood collection pen is in the lock before the launch.
  • the transparent circle 17 is not marked with red, it indicates that the launching mechanism in the blood collection pen is in the ⁇ state c

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  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un stylo d'échantillonnage de sang sans danger comprenant une pointe de stylo (1) et un corps de stylo (2), et caractérisé en ce que : une liaison d'introduction et d'extraction est adoptée entre la pointe de stylo (1) et le corps de stylo, (2) l'extrémité de liaison de pointe de stylo (19) étant équipée d'une tige poussoir (21) et l'extrémité de liaison de corps de stylo (20) étant équipée d'une fente (23) composée d'une rainure de coulissement (28), d'une rainure de transition (29) et d'une rainure de verrouillage (30) reliées successivement. L'extrémité de bras d'un bras élastique (24) d'une tige d'injection (7) est équipée d'une tête de boulon (25) dont la partie avant est équipée d'une languette de boulon (26) et la partie arrière est équipée d'un crochet de boulon (27) ; la largeur de la tête de boulon (25) est supérieure à celle de la tige poussoir (21), la largeur de la rainure de coulissement (28) et de la rainure de verrouillage (30) est supérieure à celle de la tête de boulon (25), et la largeur de la rainure de transition (29) est supérieure à celle de la tige poussoir (21) tout en étant inférieure à celle de la tête de boulon (25) ; un épaulement de blocage est formé à la jonction de la rainure de coulissement (28) et de la rainure de transition (29), un épaulement de verrouillage (32) est formé à la jonction de la rainure de transition (29) et de la rainure de verrouillage (30), et l'extrémité de la tige poussoir (21) et/ou de la languette de boulon (26) est équipée d'une face inclinée de raboutement (34). La présente solution associe la liaison d'introduction et d'extraction de la pointe de stylo (1) et du corps de stylo (2) à la sécurité d'utilisation et de fonctionnement du stylo d'échantillonnage de sang et utilise la liaison d'introduction et d'extraction entre la pointe de stylo (1) et le corps de stylo (2) pour résoudre les problèmes de sécurité potentiellement existants durant l'utilisation et le fonctionnement.
PCT/CN2012/001373 2011-11-09 2012-10-12 Stylo d'échantillonnage de sang sans danger WO2013067760A1 (fr)

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CN102379705B (zh) * 2011-11-09 2013-01-09 苏州施莱医疗器械有限公司 一种安全采血笔
CN103156621B (zh) * 2013-03-18 2014-09-17 苏州施莱医疗器械有限公司 一种改进型安全采血笔
CN103142238B (zh) * 2013-03-18 2014-09-17 苏州施莱医疗器械有限公司 改进型安全采血笔
CN103860181B (zh) * 2014-03-20 2015-06-17 苏州施莱医疗器械有限公司 一种再改进的安全采血笔
CN103989484B (zh) * 2014-06-10 2015-10-28 苏州施莱医疗器械有限公司 防止二次穿刺的一次性自动采血针
CN107638180B (zh) * 2017-10-23 2019-08-23 苏州施莱医疗器械有限公司 一种利用尾拉手上膛和卸针的采血笔

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