CN113974922A - Holds a variety of femoral stem curved drive adjusters - Google Patents

Abstract

Translated fromChinese

本发明公开了可持多种股骨柄弯型击入调整器，属于医疗器械技术领域。本发明包括弯型主体和定位机构，所述定位机构安装在弯型主体一侧，所述定位机构包括限位支撑板、定位销、拉杆和弹簧，所述限位支撑板与弯型主体一体成型，所述弯型主体一侧通过卡扣活动安装有定位销，所述弯型主体一侧活动安装有拉杆，所述拉杆贯穿于弯型主体从限位支撑板内部穿过，所述定位销位于拉杆上方，所述定位销和拉杆靠近弯型主体的一端固定安装有弹簧，所述弹簧位于弯型主体内部，弯型主体中间部位的形状为弧形，设置为弧形符合人体工学结构设计，本发明有效避免股骨柄假体在植入过程中发生松动，植入效果更佳，减少手术失败风险。

The invention discloses a curved driving adjuster capable of holding various femoral stems, and belongs to the technical field of medical devices. The present invention includes a curved main body and a positioning mechanism, the positioning mechanism is installed on one side of the curved main body, the positioning mechanism includes a limit support plate, a positioning pin, a pull rod and a spring, and the limit support plate is integrated with the curved main body forming, one side of the curved main body is movably installed with a positioning pin through a buckle, and one side of the curved main body is movably installed with a pull rod, the pull rod penetrates through the curved main body and passes through the interior of the limit support plate, the positioning The pin is located above the tie rod, the positioning pin and the end of the tie rod close to the curved main body are fixedly installed with a spring, the spring is located inside the curved main body, and the shape of the middle part of the curved main body is arc-shaped, and the arc-shaped configuration conforms to the ergonomic structure By design, the present invention effectively avoids loosening of the femoral stem prosthesis during the implantation process, has better implantation effect, and reduces the risk of surgical failure.

Description

Adjustable device for holding bent thighbone shanks

Technical Field

The invention relates to the technical field of medical instruments, in particular to a curved type impact adjuster capable of holding various femoral stems.

Background

The artificial hip joint replacement operation of surgical implant is an operation that a femoral stem is knocked into a human femoral bone marrow cavity in a prosthesis by utilizing a femoral stem impactor tool, so that the femoral stem prosthesis replaces human femur.

In the prior art, when the femoral stem impactor is used for clamping a femoral stem prosthesis, the femoral stem prosthesis is usually fixed in a threaded connection or clamping manner, the threaded connection wastes time, whether a clamping piece is matched with a hole groove formed in the femoral stem prosthesis or not needs to be considered during clamping, the applicability is poor, and each prosthesis needs to be matched with an impactor corresponding to the shape for use, so that when prostheses with different specifications are used, impactor with different shapes need to be replaced, medical personnel need to check whether a carried tool meets the requirements of an operation in advance before each operation, the operation preparation time is prolonged, if the medical personnel is not sufficiently prepared, the blood output during the operation is increased, and the medical personnel uses a straight rod-shaped femoral stem impactor and uses a hammer to knock the tail of the femoral stem impactor to implant a femoral stem artificial prosthesis into a femoral medullary cavity of a human body, however, the rod-shaped femoral stem impactor cannot adapt to ergonomics, and particularly, when an obese patient installs a femoral stem, the femoral stem can not be completely placed, and the femoral stem impactor directly vertically downwards performs implantation knocking action, so that the prosthesis of the patient is not installed in place.

Disclosure of Invention

The present invention is directed to a femoral stem bend type driving adjuster capable of holding a plurality of femoral stems to solve the above-mentioned problems of the prior art.

In order to solve the technical problems, the invention provides the following technical scheme: including bent main part and positioning mechanism, positioning mechanism installs in bent main part one side, positioning mechanism includes spacing backup pad, locating pin, pull rod and spring, spacing backup pad and bent main part integrated into one piece, there is the locating pin bent main part one side through buckle movable mounting, bent main part one side movable mounting has the pull rod, the pull rod runs through in bent main part and passes from the inside of spacing backup pad, the locating pin is located the pull rod top, the one end fixed mounting that locating pin and pull rod are close to bent main part has the spring, the spring is located bent main part inside, the shape at bent main part middle part is the arc, sets up to accord with ergonomic structural design for the arc, avoids human subcutaneous fat when being used for guaranteeing in the art to hit the ware and get into human tissue, makes the false body install more easily and targets in place, also prevents to hit the ware simultaneously and cause the injury to human tissue, positioning mechanism is used for fixing a position the prosthesis of different specifications in the art, centre gripping and fixed, spacing backup pad is used for expanding to the outside when the pull rod moves to curved main part one side, conflict with centre gripping fixed slot inner wall and then lock the prosthesis, when spacing backup pad is merged to the inboard, separate and then release the prosthesis with centre gripping fixed slot inner wall, the locating pin is used for fixing a position the prosthesis of different specifications in the art, and drive the prosthesis and take place rotatoryly in the art, the pull rod is used for doing concertina movement under the effect of spring and second stainless steel cable, the spring is used for buffering first stainless steel cable rust and the power that second stainless steel cable direct action received at locating pin and pull rod, avoid first stainless steel cable and second stainless steel cable to take place to damage because of the atress is too big at a certain moment.

Furthermore, a plurality of pins and a pin shaft are fixedly installed inside the bent main body, a first cam and a second cam are installed on the outer side of the pin shaft in a rotating mode, the pins are used for supporting the first stainless steel rope and the second stainless steel rope and guiding the first stainless steel rope and the second stainless steel rope to the positions of the pin shaft, the pin shaft is used for installing the first cam and the second cam, the first cam is used for pulling the first stainless steel rope to zoom when rotating, the locking positioning pin is telescopic, the second cam is used for pulling the second stainless steel rope to zoom when rotating, and then the pulling pull rod acts on the limiting supporting plate to lock the prosthesis.

Furthermore, one end of the positioning pin and one end of the pull rod, which are close to the bent main body, are respectively and fixedly provided with a first stainless steel rope and a second stainless steel rope, one end of the first stainless steel rope and one end of the second stainless steel rope, which are close to the positioning mechanism, are located inside the spring, one end of the spring, which is far away from the positioning mechanism, is fixedly arranged on the first stainless steel rope and the second stainless steel rope, the first stainless steel rope and the second stainless steel rope are respectively led to the first cam and the second cam through pins, the first stainless steel rope is used for pulling the positioning pin to stretch, and the second stainless steel rope is used for pulling the pull rod to stretch.

Furthermore, one side of the first cam and one side of the second cam are provided with limiting holes, one ends, far away from the positioning mechanism, of the first stainless steel rope and the second stainless steel rope penetrate through the limiting holes, the limiting holes are used for allowing the first stainless steel rope and the second stainless steel rope to penetrate through the first cam and the second cam respectively, and when the first cam or the second cam is rotated, the first stainless steel rope or the second stainless steel rope is locked, so that the state of the positioning pin or the pull rod is locked.

Further, the adjuster still includes handle and femoral stem false body, the one end that positioning mechanism was kept away from in curved type main part is installed to the handle, handle and curved type main part integrated into one piece, first elasticity knob and second elasticity knob are installed in the inboard rotation of handle, first elasticity knob is located second elasticity knob left side, open handle one side has the through-hole, and the shape of handle sets up to oval, and the medical personnel of being convenient for take in the art, and first elasticity knob is used for rotating the elasticity degree of in-process to first stainless steel rope and adjusting, and second elasticity knob is used for rotating the elasticity degree of in-process to second stainless steel rope and adjusts, and the through-hole is used for allowing first stainless steel rope and second stainless steel rope to pass through.

Furthermore, one end of the first stainless steel rope close to the limiting hole penetrates through the through hole and the inner cavity of the second elastic knob and is fixed in the inner cavity of the first elastic knob, and one end of the second stainless steel rope close to the limiting hole penetrates through the through hole and is fixed in the inner cavity of the second elastic knob.

Furthermore, the two ends of the handle, the positioning mechanism and the bent main body are located on the same central axis, and the two ends of the handle, the positioning mechanism and the bent main body are located on the same central axis, so that when the handle is rotated, the rotation amplitude of the handle and the rotation amplitude of the positioning mechanism are kept consistent, the torque generated when the prosthesis is implanted into a femoral medullary cavity is avoided, and the implantation precision of the prosthesis is reduced.

Furthermore, the femoral stem prosthesis is provided with a clamping fixing groove and a limiting groove, the limiting groove is formed in the edge position of the clamping fixing groove, the clamping fixing groove is used for allowing a limiting supporting plate and a pull rod to enter, the prosthesis is fixed through an adjusting and positioning mechanism, and the limiting groove is used for being clamped in the limiting groove when the positioning pin stretches outwards, so that the prosthesis is positioned in the operation conveniently.

Furthermore, the diameter of the cross section of the limiting support plate is smaller than the inner diameter of the clamping fixing groove, the long diameter of the cross section of the positioning pin is smaller than the minimum inner diameter of the limiting groove, the diameter of the cross section of the limiting support plate is set to be smaller than the inner diameter of the clamping fixing groove, the pull rod and the limiting support plate can enter the clamping fixing groove together at will, therefore, prostheses of different specifications can be locked, the diameter of the cross section of the positioning pin is set to be smaller than the minimum inner diameter of the limiting groove, and the prostheses of different specifications in the operation can be positioned.

Furthermore, the handle tip is provided with the baffle, the cross section diameter of baffle is greater than the cross section diameter of bone hammer, and the baffle is used for avoiding medical personnel when carrying out the operation, because the frictional force undersize that hand and handle surface produced leads to the handle landing, influences the operation precision to and can make the bone hammer direct action on the baffle surface, with the prosthetic compaction inside femoral medullary cavity.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the femoral stem prosthesis, the limiting supporting plate, the positioning pin, the pull rod, the first stainless steel rope and the second stainless steel rope are additionally arranged, the positioning pin is pulled by the first stainless steel rope to transversely fix the femoral stem prosthesis, the pull rod is pulled by the second stainless steel rope to push the limiting supporting plate to abut against the inner wall of the clamping fixing groove, the femoral stem prosthesis is longitudinally fixed, the femoral stem prosthesis is prevented from loosening in the implantation process, the implantation effect is better, and the risk of operation failure is reduced.

2. According to the femoral stem prosthesis fixing device, the positioning pin, the limiting groove, the first stainless steel rope and the first cam are additionally arranged, the first cam is pulled to finely adjust the length of the first stainless steel rope, the first stainless steel rope drives the positioning pin to enter the inner cavity of the limiting groove to fix the femoral stem prosthesis, when the femoral stem prosthesis needs to be knocked, bone in the femoral stem cavity is soft, the pull rod and the limiting support plate need to be separated from the clamping limiting groove, the positioning pin fixes the femoral stem prosthesis at the moment, the implanting direction of the femoral stem prosthesis is guaranteed not to be changed, the femoral stem prosthesis is not damaged in the knocking process, the femoral stem prosthesis fixing device is suitable for femoral stem prostheses of different specifications, the applicability is high, tools do not need to be replaced in an operation, the operation time is saved, and the bleeding amount in the operation is reduced.

3. The invention adds the bending main body, the bending structure of the bending main body accords with the ergonomic design, the subcutaneous fat of the human tissue can be avoided, the two ends of the handle, the positioning mechanism and the bending main body are positioned on the same central axis, and when the handle is rotated to adjust the femoral stem prosthesis, the movement tracks of the positioning mechanism and the handle are ensured to be consistent, so that the femoral stem prosthesis is in a state of being aligned when being knocked to move downwards, the prosthesis of a patient is prevented from being installed incompletely, and the success rate of the operation is further increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the femoral stem bend type driving adjuster of the present invention;

FIG. 2 is a schematic front view of the curved femoral stem striking adjustor of the present invention;

FIG. 3 is a schematic top view of the femoral stem bend type driving adjuster of the present invention;

FIG. 4 is a schematic side view of the femoral stem bend impact adjuster of the present invention;

FIG. 5 is an enlarged schematic view of the portion A of FIG. 1 of the femoral stem bend type driving-in adjustor of the present invention;

fig. 6 is an enlarged structural view of the portion B of fig. 2 of the femoral stem bend type driving-in adjustor of the present invention.

In the figure: 1. a handle; 11. a first tensioning knob; 12. a second tensioning knob; 13. a through hole; 14. a baffle plate; 2. a curved main body; 21. a pin; 22. a pin shaft; 23. a first cam; 24. a second cam; 25. a limiting hole; 3. a positioning mechanism; 31. a limiting support plate; 32. positioning pins; 33. a pull rod; 34. a spring; 4. a first stainless steel cable; 5. a second stainless steel cable; 6. a femoral stem prosthesis; 61. clamping a fixing groove; 62. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: the artificial limb fixing device comprises a bentmain body 2 and apositioning mechanism 3, wherein thepositioning mechanism 3 is installed on one side of the bentmain body 2, the middle part of the bentmain body 2 is arc-shaped and is designed to be in accordance with the ergonomic structure design, so that subcutaneous fat of a human body is avoided when an impactor enters the human tissue in an operation, the prosthesis is easier to install in place, and meanwhile the impactor is prevented from damaging the human tissue, thepositioning mechanism 3 is used for positioning, clamping and fixing prostheses of different specifications in the operation, thepositioning mechanism 3 comprises alimiting support plate 31, apositioning pin 32, apull rod 33 and aspring 34, thelimiting support plate 31 is integrally formed with the bentmain body 2, thelimiting support plate 31 is used for unfolding towards the outer side when thepull rod 33 moves towards one side of the bentmain body 2 and is abutted against the inner wall of a clampingfixing groove 61 to lock the prostheses, and when thelimiting support plate 31 is combined towards the inner side, the inner wall of the clampingfixing groove 61 is separated to release the prostheses, apositioning pin 32 is movably arranged on one side of the bentmain body 2 through a buckle, thepositioning pin 32 is used for positioning prostheses with different specifications in the operation and driving the prostheses to rotate in the operation, apull rod 33 is movably arranged on one side of the bentmain body 2, thepull rod 33 is used for doing telescopic motion under the action of aspring 34 and a secondstainless steel rope 5, thepull rod 33 penetrates through the bentmain body 2 and penetrates through thelimiting support plate 31, thepositioning pin 32 is positioned above thepull rod 33, thepositioning pin 32 is used for matching with thepull rod 33 and thelimiting support plate 31 to realize the transverse and longitudinal simultaneous support of thefemoral stem prosthesis 6, the fixing effect is optimal, thespring 34 is fixedly arranged at one end of thepositioning pin 32 and one end of thepull rod 33 close to the bentmain body 2, thespring 34 is positioned in the bentmain body 2, and thespring 34 is used for buffering the force which is directly acted on the positioningpin 32 and thepull rod 33 by the firststainless steel rope 4 and the secondstainless steel rope 5, the firststainless steel rope 4 and the secondstainless steel rope 5 are prevented from being damaged due to the fact that the stress is overlarge at a certain moment.

A plurality ofpins 21 and apin shaft 22 are fixedly installed inside the bentmain body 2, thepins 21 are used for supporting the firststainless steel rope 4 and the secondstainless steel rope 5, the firststainless steel rope 4 and the secondstainless steel rope 5 are guided to the position of thepin shaft 22, thepin shaft 22 is used for installing afirst cam 23 and asecond cam 24, thefirst cam 23 and thesecond cam 24 are installed on the outer side of thepin shaft 22 in a rotating mode, thefirst cam 23 is used for pulling the firststainless steel rope 4 to zoom in and out when rotating, thelocking positioning pin 32 is telescopic, thesecond cam 24 is used for pulling the secondstainless steel rope 5 to zoom in and out when rotating, and then the pullingpull rod 33 acts on the limiting supportingplate 31 to lock the prosthesis.

Locatingpin 32 andpull rod 33 are close to the one end of bentmain part 2 and are fixed mounting respectively have firststainless steel rope 4 and secondstainless steel rope 5, firststainless steel rope 4 is used for pulling locatingpin 32 flexible, secondstainless steel rope 5 is used for pullingpull rod 33 flexible, firststainless steel rope 4 and secondstainless steel rope 5 are close to the one end ofpositioning mechanism 3 and are located insidespring 34, the one end fixed mounting thatpositioning mechanism 3 was kept away from tospring 34 is on firststainless steel rope 4 and secondstainless steel rope 5, firststainless steel rope 4 and secondstainless steel rope 5 lead tofirst cam 23 andsecond cam 24 respectively throughpin 21.

One side of thefirst cam 23 and one side of thesecond cam 24 are provided with a limiting hole 25, one end of the firststainless steel rope 4 and one end of the secondstainless steel rope 5 far away from thepositioning mechanism 3 penetrate through the limiting hole 25, the limiting hole 25 is used for allowing the firststainless steel rope 4 and the secondstainless steel rope 5 to penetrate through thefirst cam 23 and thesecond cam 24 respectively, and when thefirst cam 23 or thesecond cam 24 is rotated, the firststainless steel rope 4 or the secondstainless steel rope 5 is locked, so that the state of thepositioning pin 32 or thepull rod 33 is locked.

The adjuster still includeshandle 1 andfemoral stem prosthesis 6, the shape ofhandle 1 sets up to the ellipse, be convenient for medical personnel to take in the art,handle 1 is installed in the one end thatpositioning mechanism 3 was kept away from to curvedmain part 2, handle 1 and curvedmain part 2 integrated into one piece, 1 inboard rotation of handle is installedfirst elasticity knob 11 andsecond elasticity knob 12,first elasticity knob 11 is locatedsecond elasticity knob 12 left side,first elasticity knob 11 is used for rotating the elasticity degree of in-process to firststainless steel cable 4 and adjusting,second elasticity knob 12 is used for rotating the elasticity degree of in-process to secondstainless steel cable 5 and adjusts, open 1 one side of handle has through-hole 13, through-hole 13 is used for allowing firststainless steel cable 4 and secondstainless steel cable 5 to pass through.

One end of the firststainless steel rope 4 close to the limiting hole 25 penetrates through the throughhole 13 and the inner cavity of the second tighteningknob 12 and is fixed in the inner cavity of the first tighteningknob 11, and one end of the secondstainless steel rope 5 close to the limiting hole 25 penetrates through the throughhole 13 and is fixed in the inner cavity of the second tighteningknob 12.

The two ends of thehandle 1, thepositioning mechanism 3 and the bentmain body 2 are located on the same central axis, and the two ends of thehandle 1, thepositioning mechanism 3 and the bentmain body 2 are located on the same central axis, so that when thehandle 1 is rotated, the rotation amplitude of thehandle 1 and the rotation amplitude of thepositioning mechanism 3 are kept consistent, the torque generated when the prosthesis is implanted into a femoral medullary cavity is avoided, and the prosthesis implantation precision is reduced.

Thefemoral stem prosthesis 6 is provided with aclamping fixing groove 61 and a limitinggroove 62, theclamping fixing groove 61 is used for allowing the limiting supportingplate 31 and thepull rod 33 to enter, the prosthesis is fixed through the adjusting andpositioning mechanism 3, the limitinggroove 62 is arranged at the edge position of theclamping fixing groove 61, and the limitinggroove 62 is used for being clamped in the limitinggroove 62 when thepositioning pin 32 extends and retracts outwards, so that the prosthesis can be positioned conveniently in the operation.

Spacingbackup pad 31 cross section diameter is less than centre gripping fixedslot 61 internal diameter, set up the cross section diameter ofspacing backup pad 31 to the internal diameter that is less than centre gripping fixedslot 61, be used for guaranteeing thatpull rod 33 andspacing backup pad 31 can get into centre gripping fixedslot 61 jointly at will inside, and then realize locking the prosthesis of different specifications, locatingpin 32 cross section major diameter is less than spacinggroove 62 minimum internal diameter, set up the cross section major diameter of locatingpin 32 to the minimum internal diameter that is less than spacinggroove 62, be used for realizing fixing a position the prosthesis of different specifications in the art.

The end part of thehandle 1 is provided with abaffle plate 14, the diameter of the cross section of thebaffle plate 14 is larger than that of the bone hammer, thebaffle plate 14 is used for preventing medical staff from sliding off thehandle 1 due to undersize friction force generated between the hand and the surface of thehandle 1 when performing an operation, the operation precision is influenced, the bone hammer can directly act on the surface of thebaffle plate 14, and the prosthesis is compacted inside a femoral medullary cavity.

The working principle of the invention is as follows: when a user uses the femoral stem prosthesis 6, the femoral stem prosthesis 6 is inserted to the outer side of the limiting support plate 31 through the clamping fixing groove 61, then the second cam 24 is pulled to finely adjust the length of the second stainless steel rope 5, the second stainless steel rope 5 in the adjusting process pulls the pull rod 33 to move to one side of the bent main body 2, the pull rod 33 enters the cavity formed by the limiting support plates 31 in the moving process and pushes the limiting support plate 31 to move to the outer side to the position abutting against the inner wall of the clamping fixing groove 61, then the first cam 23 is pulled to finely adjust the length of the first stainless steel rope 4, the first stainless steel rope 4 in the adjusting process drives the positioning pin 32 to move to the inner cavity of the limiting groove 62 to lock the prosthesis, then the first loosening knob 11 and the second loosening knob 12 are respectively screwed to enable the first stainless steel rope 4 and the second stainless steel rope 5 to be in a tight state, and then the femoral stem prosthesis 6 is driven to enter the human tissue through the bent main body 2, because of the 'bent' structure of the bent main body 2, subcutaneous fat of a human body is avoided when the bent main body 2 enters the human tissue in the operation, the handle 1 is rotated according to the implantation requirement when the femoral stem prosthesis 6 enters the human tissue, because the handle 1, the positioning mechanism 3 and the two ends of the bent main body 2 are positioned on the same central axis, the handle 1, the positioning mechanism 3 and the femoral stem prosthesis 6 keep consistent motion, no torque is generated, finally, the baffle 14 is knocked by using a bone hammer, the femoral stem prosthesis 6 is compacted into a femoral medullary cavity, when the femoral stem prosthesis 6 is knocked, the pull rod 33 and the limiting support plate 31 are separated from the clamping and fixing groove 61, the damage to the inner part of the femoral medullary cavity is avoided, after the femoral stem prosthesis 6 is implanted, the first loosening knob 11 and the second loosening knob 12 are loosened, then the first cam 23 and the second cam 24 are pulled, and at the moment, the first stainless steel rope 4 and the second stainless steel rope 5 are in a loose state, the first stainless steel rope 4 and the second stainless steel rope 5 in a relaxed state drive the positioning pin 32 and the pull rod 33 to be separated from the clamping fixing groove 61 and the limiting groove 62 respectively.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

Translated fromChinese

1.可持多种股骨柄弯型击入调整器，其特征在于：包括弯型主体(2)和定位机构(3)，所述定位机构(3)安装在弯型主体(2)一侧，所述定位机构(3)包括限位支撑板(31)、定位销(32)、拉杆(33)和弹簧(34)，所述限位支撑板(31)与弯型主体(2)一体成型，所述弯型主体(2)一侧通过卡扣活动安装有定位销(32)，所述弯型主体(2)一侧活动安装有拉杆(33)，所述拉杆(33)贯穿于弯型主体(2)从限位支撑板(31)内部穿过，所述定位销(32)位于拉杆(33)上方，所述定位销(32)和拉杆(33)靠近弯型主体(2)的一端固定安装有弹簧(34)，所述弹簧(34)位于弯型主体(2)内部。1. Can hold a variety of femoral stem curved driving adjusters, characterized in that: comprising a curved main body (2) and a positioning mechanism (3), the positioning mechanism (3) is installed on one side of the curved main body (2) , the positioning mechanism (3) comprises a limit support plate (31), a positioning pin (32), a pull rod (33) and a spring (34), and the limit support plate (31) is integrated with the curved body (2) Forming, a positioning pin (32) is movably installed on one side of the curved main body (2) through a buckle, and a pull rod (33) is movably installed on one side of the curved main body (2), and the pull rod (33) penetrates through the The curved body (2) passes through the interior of the limiting support plate (31), the positioning pin (32) is located above the pull rod (33), and the positioning pin (32) and the pull rod (33) are close to the curved body (2) A spring (34) is fixedly installed at one end of the ), and the spring (34) is located inside the curved body (2).2.根据权利要求1所述的可持多种股骨柄弯型击入调整器，其特征在于：所述弯型主体(2)内部固定安装有多个销钉(21)和一个销轴(22)，所述销轴(22)外侧转动安装有第一凸轮(23)和第二凸轮(24)。2. The curved driving adjuster capable of holding multiple femoral stems according to claim 1, characterized in that: a plurality of pins (21) and a pin (22) are fixedly installed inside the curved main body (2). ), a first cam (23) and a second cam (24) are rotatably mounted on the outside of the pin shaft (22).3.根据权利要求2所述的可持多种股骨柄弯型击入调整器，其特征在于：所述定位销(32)和拉杆(33)靠近弯型主体(2)的一端分别固定安装有第一不锈钢绳(4)和第二不锈钢绳(5)，所述第一不锈钢绳(4)和第二不锈钢绳(5)靠近定位机构(3)的一端位于弹簧(34)内部，所述弹簧(34)远离定位机构(3)的一端固定安装在第一不锈钢绳(4)和第二不锈钢绳(5)上，所述第一不锈钢绳(4)和第二不锈钢绳(5)通过销钉(21)分别引向第一凸轮(23)和第二凸轮(24)。3. The curved driving adjuster capable of holding multiple femoral stems according to claim 2, wherein the positioning pin (32) and the pull rod (33) are respectively fixed and installed at one end close to the curved main body (2). There are a first stainless steel rope (4) and a second stainless steel rope (5), and one end of the first stainless steel rope (4) and the second stainless steel rope (5) close to the positioning mechanism (3) is located inside the spring (34), so the One end of the spring (34) away from the positioning mechanism (3) is fixedly mounted on the first stainless steel rope (4) and the second stainless steel rope (5), the first stainless steel rope (4) and the second stainless steel rope (5) The pins (21) lead to the first cam (23) and the second cam (24) respectively.4.根据权利要求3所述的可持多种股骨柄弯型击入调整器，其特征在于：所述第一凸轮(23)和第二凸轮(24)一侧开有限位孔(25)，所述第一不锈钢绳(4)和第二不锈钢绳(5)远离定位机构(3)的一端穿过限位孔(25)。4. The bending type driving adjuster capable of holding multiple femoral stems according to claim 3, wherein a limiting hole (25) is opened on one side of the first cam (23) and the second cam (24) One end of the first stainless steel rope (4) and the second stainless steel rope (5) away from the positioning mechanism (3) passes through the limiting hole (25).5.根据权利要求4所述的可持多种股骨柄弯型击入调整器，其特征在于：调整器还包括手柄(1)和股骨柄假体(6)，所述手柄(1)安装在弯型主体(2)远离定位机构(3)的一端，所述手柄(1)与弯型主体(2)一体成型，所述手柄(1)内侧转动安装有第一松紧旋钮(11)和第二松紧旋钮(12)，所述第一松紧旋钮(11)位于第二松紧旋钮(12)左侧，所述手柄(1)一侧开有通孔(13)。5. The bending type driving adjuster capable of holding multiple femoral stems according to claim 4, characterized in that: the adjuster further comprises a handle (1) and a femoral stem prosthesis (6), and the handle (1) is installed At the end of the curved main body (2) away from the positioning mechanism (3), the handle (1) and the curved main body (2) are integrally formed, and the inside of the handle (1) is rotatably installed with a first tightening knob (11) and A second tightening knob (12), the first tightening knob (11) is located on the left side of the second tightening knob (12), and a through hole (13) is opened on one side of the handle (1).6.根据权利要求5所述的可持多种股骨柄弯型击入调整器，其特征在于：所述第一不锈钢绳(4)靠近限位孔(25)的一端穿过通孔(13)和第二松紧旋钮(12)内腔，并固定在第一松紧旋钮(11)内腔，所述第二不锈钢绳(5)靠近限位孔(25)的一端穿过通孔(13)固定在第二松紧旋钮(12)内腔。6. The bending type driving adjuster capable of holding various femoral stems according to claim 5, characterized in that: one end of the first stainless steel cord (4) close to the limiting hole (25) passes through the through hole (13) ) and the inner cavity of the second elastic knob (12), and are fixed in the inner cavity of the first elastic knob (11), the end of the second stainless steel rope (5) close to the limit hole (25) passes through the through hole (13) It is fixed in the inner cavity of the second elastic knob (12).7.根据权利要求5所述的可持多种股骨柄弯型击入调整器，其特征在于：所述手柄(1)、定位机构(3)和弯型主体(2)的两端位于同一中心轴线上。7. The curved driving adjuster capable of holding multiple femoral stems according to claim 5, characterized in that: both ends of the handle (1), the positioning mechanism (3) and the curved main body (2) are located at the same on the central axis.8.根据权利要求5所述的可持多种股骨柄弯型击入调整器，其特征在于：所述股骨柄假体(6)上开有夹持固定槽(61)和限位槽(62)，所述限位槽(62)开设在夹持固定槽(61)边缘位置。8. The bending type driving adjuster capable of holding multiple femoral stems according to claim 5, characterized in that: the femoral stem prosthesis (6) is provided with a clamping and fixing groove (61) and a limiting groove ( 62), the limiting groove (62) is opened at the edge position of the clamping and fixing groove (61).9.根据权利要求8所述的可持多种股骨柄弯型击入调整器，其特征在于：所述限位支撑板(31)横截面直径小于夹持固定槽(61)内径，所述定位销(32)横截面长径小于限位槽(62)最小内径。9 . The curved driving adjuster capable of holding multiple femoral stems according to claim 8 , wherein the cross-sectional diameter of the limiting support plate ( 31 ) is smaller than the inner diameter of the clamping and fixing groove ( 61 ). The long diameter of the cross section of the positioning pin (32) is smaller than the minimum inner diameter of the limiting groove (62).10.根据权利要求5所述的可持多种股骨柄弯型击入调整器，其特征在于：所述手柄(1)端部设置有挡板(14)，所述挡板(14)的横截面直径大于骨锤的横截面直径。10. The curved driving adjuster capable of holding multiple femoral stems according to claim 5, characterized in that: a baffle plate (14) is provided at the end of the handle (1), and the baffle plate (14) is provided with a baffle plate (14). The cross-sectional diameter is larger than the cross-sectional diameter of the bone hammer.

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