CN111839836A - Quick-release femoral stem prosthesis implanting and extracting tool - Google Patents
Quick-release femoral stem prosthesis implanting and extracting tool Download PDFInfo
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- CN111839836A CN111839836A CN202010543959.5A CN202010543959A CN111839836A CN 111839836 A CN111839836 A CN 111839836A CN 202010543959 A CN202010543959 A CN 202010543959A CN 111839836 A CN111839836 A CN 111839836A
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- clamping
- centre gripping
- femoral stem
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/461—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of knees
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4629—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof connected to the endoprosthesis or implant via a threaded connection
Abstract
The invention discloses a quick-release femoral stem prosthesis implanting and taking-out tool, which comprises a clamping body, wherein one side of the clamping body is provided with a clamping auxiliary body, the upper end of the clamping auxiliary body is provided with an elastic body, the elastic body is connected with the clamping body through a locking mechanism, the upper end of the clamping body is provided with a handle, the clamping body sequentially comprises a body clamping section, a body inclined section, a body vertical section and a connecting section from bottom to top, and the clamping auxiliary body sequentially comprises an auxiliary body clamping section, an auxiliary body inclined section and an auxiliary body vertical section from bottom to top. The clamping force is large, and the falling risk is avoided.
Description
Technical Field
The invention relates to the field of prosthesis replacement, in particular to a quick-release femoral stem prosthesis implanting and extracting tool.
Background
In the field of the existing orthopedic joints, due to the fact that research and development periods of product implants are long, feedback time is long, risks are high, and technologies are relatively mature, the surgical tools are updated, the key points of various medical instrument companies are formed, functions of the surgical tools are diversified, structures are simplified, and operation is simplified, so that the development trend of the surgical tools is reached.
In the knee joint replacement operation, need with instrument centre gripping femoral stem, place the femoral stem on the shin bone next time, then put the femoral stem into the shin bone with beating the instrument, if the operation fails or the femoral stem need be changed long and away in the past, need with instrument centre gripping femoral stem, take out the femoral stem, the required centre gripping instrument is femoral stem prosthesis implanter when femoral stem prosthesis is implanted and takes out.
The prior art has the defects and shortcomings that:
1. the existing femoral stem prosthesis implanting device mostly uses a thread locking structure, so that the implanting device is screwed into a hole on a femoral stem to be fixed, the femoral stem is required to be screwed down again after being placed into a tibia, the operation mode is complex in operation, the required time is relatively long, and the operation time and the operation risk are increased;
2. After the femoral stem is successfully clamped by the implanter through the thread structure, when the beating tool acts on the femoral stem, the acting force of the beating tool is concentrated on the screw teeth of the thread structure, and if the beating force is not accurately mastered, the screw teeth are easily necrotic or the screw threads are blocked, so that the success rate of the operation is influenced, the operation is very dependent on the experience of a doctor, and the operation difficulty and the operation time are increased;
3. the implanter with a thread structure has more thread grooves and more complex structure, and is not beneficial to cleaning and disinfection of tools after use.
The quick-release femoral stem prosthesis implanting and taking tool disclosed by the invention can achieve the using effect through a simple structure and simplified operation, and avoids the possible blocking risk of the conventional mainstream tool.
Disclosure of Invention
The invention aims to provide a quick-dismantling femoral stem prosthesis implanting and extracting tool to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a rapid-disassembly femoral stem prosthesis implanting and taking-out tool comprises a clamping body, wherein the clamping body is used for clamping a femoral stem, a clamping auxiliary body is arranged on one side of the clamping body and used for assisting the clamping body to clamp the femoral stem, an elastic body is arranged at the upper end of the clamping auxiliary body and has certain elasticity and used for driving the clamping auxiliary body to generate a force perpendicular to the clamping body, the elastic body and the clamping body are connected through a locking mechanism, the locking mechanism is fixed at the middle end of the clamping body, a handle is arranged at the upper end of the clamping body and used for being manually held by a user, the clamping body sequentially comprises a body clamping section, a body inclined section, a body vertical section and a connecting section from bottom to top, the body clamping section is used for clamping the femoral stem, and the body inclined section avoids a large rotor on a tibia in the operation process, prevent damaging the big rotor, the vertical section of body is used for transmitting clamping-force, the linkage segment is used for connecting the handle, the centre gripping assistor includes assistor centre gripping section, assistor slope section, the vertical section of assistor from bottom to top in proper order, the elastomer loops through the vertical section of assistor, and the assistor slope section gives an elasticity of assistor centre gripping section, and the direction of this force is from the directional assistor centre gripping section of body centre gripping section.
Preferably, one end of the body clamping section close to the auxiliary body clamping section is provided with a first cutting groove, one end of the auxiliary body clamping section far away from the body clamping section is provided with a second cutting groove, the first cutting groove and the second cutting groove enable the part of the auxiliary body clamping section to enter the body clamping section, so that the body clamping section, the auxiliary body clamping section and the clamping hole of the femoral stem are matched more tightly, the gap among the three is reduced, the auxiliary body clamping section and the femoral stem are easier to successfully clamp, the thickness of the top end of the auxiliary body clamping section is D, the thickness of the connecting end of the auxiliary body clamping section and the auxiliary body inclined section is D, D is larger than D, namely, the distance D and the distance D in the graph 4, when the device clamps the femoral stem, the auxiliary body clamping section is stressed in the vertical direction, and when the distance D is larger than the distance D, the tip of the auxiliary body clamping section is abutted against the inner wall of the clamping hole of the femoral stem, so that the risk that the device and the femoral stem fall off from each other is avoided.
Preferably, the elastic body comprises a curve elastic body and a straight line elastic body, when the device is used, the elastic force and the deformation borne by the curve elastic body are larger than those borne by the straight line elastic body, the curve-shaped curve elastic body can adapt to the deformation without breaking, the curve elastic body and the straight line elastic body are integrally formed, one end, close to the locking mechanism, of the curve elastic body is provided with a connecting ring, one end, close to the locking mechanism, of the straight line elastic body is provided with a connecting semi-ring, and the connecting ring and the connecting semi-ring are used for being connected with the locking mechanism.
Preferably, the locking mechanism comprises a connecting block, a wrench, a first pin, a second pin, a third pin, a first resistance ring and a second resistance ring, the connecting block is located in the middle of the clamping body, the connecting block is fixed on the clamping body, the wrench is connected with the connecting block through the first pin, when a certain force is given to the wrench by manpower, the wrench can be pulled off, the wrench rotates by taking the first pin as an axis, the second pin penetrates through the wrench, when the wrench is in a vertical direction, a pretightening force is formed between the second pin and the connecting block, a certain force is needed for rotating the wrench, the first resistance ring is arranged on one side of the first pin, the second resistance ring is arranged on one side of the second pin, and the first resistance ring and the second resistance ring enable a certain resistance to be formed between the wrench and the first pin and the second pin, so that the wrench is prevented from easily rotating without external force, the third pin is positioned on the lower side of the connecting block and penetrates through the connecting block, and the connection relation between the connecting semi-rings on the linear elastic body and the third pin is changed along with the change of the using state of the device.
Preferably, the connecting section sequentially comprises a polygonal section, a fixed section and a round head section from bottom to top, a polygonal groove is formed in one end, close to the connecting section, of the handle, the polygonal groove and the polygonal section are matched with each other, the handle and the connecting section can move in the same circumferential direction, a pressing block transversely penetrates through the polygonal groove, a spring is arranged on one side of the pressing block, a first fixing column is arranged on the other side of the spring, a column groove is formed in one side, far away from the spring, of the pressing block, a second fixing column is arranged in the column groove, the pressing block is pressed tightly by the elastic force of the spring under a normal state, the handle and the connecting section are fixed, when the pressing block is pressed by external force, the spring is compressed, the pressing block is separated from the fixed section, and the fixed section can be taken down to replace the specification of the tool.
Preferably, the pressing block and the handle are connected through a first fixing column and a second fixing column, the first fixing column and the second fixing column are fixed in the handle, one side of the pressing block is exposed out of the handle, the handle is conveniently pressed by hands, the connecting section is inserted into the handle, the polygonal section and the polygonal groove are matched with each other, the fixing section is in contact with the pressing block, the handle and the connecting section are fixed in the axial direction and the circumferential direction, and the handle and the connecting section cannot rotate relatively.
Preferably, the connection positions of the linear elastic body and the connection semi-rings are in smooth transition, so that the linear elastic body and the connection semi-rings are successfully lapped when the elastic body deforms.
Preferably, the clamping auxiliary body and the elastic body, the clamping body and the locking mechanism are connected through a pin.
Preferably, the clamping body, the clamping auxiliary body and the elastic body are made of titanium alloy.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the quick-release femoral stem prosthesis implanting and taking-out tool disclosed by the invention, the femoral stem is clamped by using the elastic body and the locking mechanism instead of a traditional thread structure, and the femoral stem can be firmly clamped only by pulling the wrench during clamping, so that the operation difficulty is reduced, the operation time is reduced and the success probability of the operation is increased compared with the traditional structure;
2. According to the quick-release femoral stem prosthesis implanting and taking-out tool disclosed by the invention, when the femoral stem is implanted by a beating tool, the acting force is mainly concentrated on the femoral stem, the acting force borne by the device is less, compared with the traditional thread structure, the device has the advantages that the damage probability is smaller, the blocking probability is smaller, the beating force requirement on a doctor is smaller, the difficulty of operation is reduced, and the success probability of the operation is increased;
3. the quick-release femoral stem prosthesis implanting and taking tool disclosed by the invention has the advantages that the structure is very simple, dead corners and microgrooves are fewer, and the tool is easy to clean and disinfect;
4. the tip structure of the clamping auxiliary body is special, when the clamping body and the clamping auxiliary body extend into the clamping hole of the femoral stem, the locking mechanism drives the elastic body to provide a vertical outward force for the tip of the clamping auxiliary body, so that the device and the femoral stem cannot fall off unless the clamping body and the clamping auxiliary body are subjected to plastic deformation, and the clamping body and the clamping auxiliary body are both prepared by titanium alloy with extremely high hardness, so that the risk of falling off of the device and the femoral stem is almost zero;
5. the rear end of the clamping body is connected with the handle through the pressing block, the connecting mode is detachable, tools of different specifications or different types can be replaced for femoral stems or other prostheses of different specifications, and the clamping device is widely applicable;
6. The front ends of the clamping body and the clamping auxiliary body are provided with the inclined sections, so that when a femoral stem is implanted, a greater trochanter on a tibia can be avoided, and the greater trochanter is prevented from being damaged in the femoral stem implanting process.
Drawings
FIG. 1 is a front view of a quick release femoral stem prosthesis implantation and extraction tool of the present invention;
FIG. 2 is a perspective view of the clamping body of the present invention;
FIG. 3 is a perspective view of a clamping aid of the present invention;
FIG. 4 is a front view of the clamping aid of the present invention;
FIG. 5 is a perspective view of an elastomer of the present invention;
FIG. 6 is a perspective view of the locking mechanism of the present invention;
FIG. 7 is a perspective view of the handle of the present invention;
FIG. 8 is an interior perspective view of the handle of the present invention;
FIG. 9 is a free state view of a quick release femoral stem prosthesis implantation and extraction tool of the present invention;
FIG. 10 is a schematic view of the implanted state of a quick release femoral stem prosthesis implantation and extraction tool of the present invention;
FIG. 11 is a schematic view of a quick release femoral stem prosthesis implantation and extraction tool of the present invention locking the prosthesis.
Reference numerals: 1. a clamping body; 2. clamping the auxiliary body; 3. an elastomer; 4. a locking mechanism; 5. a handle; 6. a body clamping section; 7. a body inclined section; 8. a body vertical section; 9. a connecting section; 10. an auxiliary body clamping section; 11. an auxiliary body inclined section; 12. an auxiliary body vertical section; 13. cutting a groove; 14. cutting a groove II; 15. a curvilinear elastomer; 16. a linear elastic body; 17. connecting the circular rings; 18. connecting the half rings; 19. connecting blocks; 20. a wrench; 21. a first pin; 22. a second pin; 23. a third pin; 24. a first resistance ring; 25. a second resistance ring; 26. a polygonal section; 27. a fixed section; 28. a round head section; 29. a polygonal groove; 30. briquetting; 31. a spring; 32. a first fixing column; 33. a column groove; 34. a second fixing column; 35. and (4) a pin.
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.
Example (b): referring to fig. 1 to 3, in the invention, a quick-release femoral stem prosthesis implanting and removing tool comprises a clamping body 1, the clamping body 1 is used for clamping a femoral stem, a clamping auxiliary body 2 is arranged on one side of the clamping body 1, the clamping auxiliary body 2 is used for assisting the clamping body 1 to clamp the femoral stem, an elastic body 3 is arranged at the upper end of the clamping auxiliary body 2, the elastic body 3 has certain elasticity and is used for driving the clamping auxiliary body 2 to generate a force vertical to the clamping body 1, the elastic body 3 is connected with the clamping body 1 through a locking mechanism 4, the locking mechanism 4 is fixed at the middle end of the clamping body 1, a handle 5 is arranged at the upper end of the clamping body 1, the handle 5 is used for manually holding the device, the clamping body 1 sequentially comprises a body clamping section 6, a body inclined section 7, a body vertical section 8 and a connecting section 9 from bottom to top, the body clamping section 6 is used for clamping the femoral stem, the greater trochanter on the shin bone is avoided at operation in-process to body slope section 7, prevent to damage the greater trochanter, body vertical section 8 is used for transmitting clamping-force, linkage segment 9 is used for connecting handle 5, centre gripping assistor 2 includes assistor centre gripping section 10 from bottom to top in proper order, assistor slope section 11, assistor vertical section 12, elastomer 3 loops through assistor vertical section 12, assistor slope section 11 gives assistor centre gripping section 10 elasticity, the direction of this force is from the directional assistor centre gripping section 10 of body centre gripping section 6.
Referring to fig. 2 to 4, a first cutting groove 13 is formed at one end of the body clamping section 6 close to the auxiliary body clamping section 10, a second cutting groove 14 is formed at one end of the auxiliary body clamping section 10 far from the body clamping section 6, the first cutting groove 13 and the second cutting groove 14 enable a part of the auxiliary body clamping section 10 to enter the body clamping section 6, so that the body clamping section 6, the auxiliary body clamping section 10 and a clamping hole of a femoral stem are matched more tightly, gaps among the three are reduced, the auxiliary body clamping section 10 and the femoral stem are easier to clamp successfully, the thickness of the top end of the auxiliary body clamping section 10 is D, the thickness of the connecting end of the auxiliary body clamping section 10 and the auxiliary body inclined section 11 is D, and D is larger than D, namely, the distances D and D in fig. 4, when the device clamps the femoral stem, the auxiliary body clamping section 10 is stressed in the vertical direction, and when D is larger than D, the tip of the auxiliary body clamping section 10 is abutted against the inner wall of the clamping hole of the femoral stem, so that the risk that the device and the femoral stem fall off from each other is avoided.
Referring to fig. 5, the elastic body 3 includes a curved elastic body 15 and a linear elastic body 16, when the device is used, the curved elastic body 15 is subjected to larger elastic force and deformation than the linear elastic body 16, the curved elastic body 15 with a curved shape can be more suitable for the deformation without breaking, the curved elastic body 15 and the linear elastic body 16 are integrally formed, one end of the curved elastic body 15 close to the locking mechanism 4 is provided with a connecting ring 17, one end of the linear elastic body 16 close to the locking mechanism 4 is provided with a connecting half ring 18, and the connecting ring 17 and the connecting half ring 18 are used for being connected with the locking mechanism 4.
Referring to fig. 6, the locking mechanism 4 includes a connecting block 19, a wrench 20, a first pin 21, a second pin 22, a third pin 23, a first resistance ring 24, and a second resistance ring 25, the connecting block 19 is located in the middle of the clamping body 1, the connecting block 19 is fixed on the clamping body 1, the wrench 20 is connected to the connecting block 19 through the first pin 21, when a certain force is applied to the wrench 20 by human power, the wrench 20 can be pulled, the wrench 20 rotates around the first pin 21, the second pin 22 passes through the wrench 20, when the wrench 20 is in a vertical direction, a pre-tightening force is provided between the second pin 22 and the connecting block 19, a certain force is required to rotate the wrench 20, the first resistance ring 24 is disposed on one side of the first pin 21, the second resistance ring 25 is disposed on one side of the second pin 22, the first resistance ring 24 and the second resistance ring 25 enable a certain resistance force to be provided between the wrench 20 and the first pin 21, the second pin 22, the wrench 20 is prevented from easily rotating when not being subjected to external force, the third pin 23 is located at the lower side of the connecting block 19 and penetrates through the connecting block 19, and the connection relationship between the connecting half ring 18 and the third pin 23 on the linear elastic body 16 changes along with the change of the using state of the device.
Referring to fig. 7 to 8, the connecting section 9 includes a polygonal section 26, a fixed section 27 and a round section 28 in sequence from bottom to top, a polygonal groove 29 is formed at one end of the handle 5 close to the connecting section 9, the polygonal groove 29 and the polygonal section 26 are adapted to each other, so that the handle 5 and the connecting section 9 move in the circumferential direction in the same direction, a pressing block 30 transversely penetrates through the polygonal groove 29, a spring 31 is arranged at one side of the pressing block 30, a first fixing post 32 is arranged at the other side of the spring 31, a post groove 33 is arranged at one side of the pressing block 30 away from the spring 31, a second fixing post 34 is arranged in the post groove 33, under a normal state, the elastic force of the spring 31 applies a pushing force to the pressing block 30 to press the pressing block 30 and the fixed section 27, so as to fix the handle 5 and the connecting section 9, when the pressing block 30 is pressed by an external force, the spring 31 is compressed, the, the specification of the tool is changed.
The pressing block 30 is connected with the handle 5 through a first fixing column 32 and a second fixing column 34, the first fixing column 32 and the second fixing column 34 are fixed in the handle 5, one side of the pressing block 30 is exposed out of the handle 5, the handle 5 is conveniently pressed by a hand, the connecting section 9 is inserted into the handle 5, the polygonal section 26 and the polygonal groove 29 are matched with each other, the fixing section 27 is in contact with the pressing block 30, the handle 5 and the connecting section 9 are fixed in the axial direction and the circumferential direction, and the handle 5 and the connecting section 9 cannot rotate relatively.
The connecting positions of the linear elastic body 16 and the connecting half rings 18 are in smooth transition, so that the linear elastic body 16 and the connecting half rings 18 are successfully lapped when the elastic body 3 deforms.
The holding assistant body 2 and the elastic body 3, the holding body 1 and the lock mechanism 4 are connected by a pin 35.
The clamping main body 1, the clamping auxiliary body 2 and the elastic body 3 are made of titanium alloy.
The working principle of the invention is as follows: when the device is in a free state, as shown in fig. 9, a wrench 21 is in contact with the clamping body 1, a pretightening force is arranged between the second pin 22 and the connecting block 19, the wrench 21 is fixed in the direction within a certain force range, the elastic body 3 is driven by the wrench 21 to generate certain elastic deformation, a force in the direction shown by an arrow is arranged at the position b, the auxiliary body clamping section 10 is in contact with the body clamping section 6 at the position a, and the connecting half ring 18 is not overlapped with the third pin 23 at the position c;
When the device needs to clamp the femoral stem, as shown in fig. 10, at the f position, an external force gives a force in the arrow direction to the wrench 21, so that the wrench 21 rotates away from the clamping body 1, the curve elastic body 15 slightly rotates by taking the second pin 22 as an axis, the straight line elastic body 16 is driven to rotate, the connecting half ring 18 and the third pin 23 are lapped, and meanwhile, the auxiliary body clamping section 10 and the body clamping section 6 at the e position are mutually compressed and extend into the clamping hole of the femoral stem;
when the femoral stem is locked, as shown in fig. 11, an arrow direction force is applied to the wrench 21 at the position h, so that the wrench 21 is in contact with the clamping body 1, a pre-tightening force is provided between the second pin 22 and the connecting block 19, the wrench 21 is fixed in the direction within a certain force path, the elastic body 3 is driven by the wrench 21 to generate a certain elastic force, the elastic force cannot be transmitted to the linear elastic body 16 due to the overlapping of the connecting half ring 18 and the third pin 23, but is transmitted to the clamping auxiliary body 2, so that the auxiliary body clamping section 10 generates an outward force to be tightly pressed against the side wall of the femoral stem clamping hole, and at the moment, the outer wall of the auxiliary body clamping section 10 and the inner wall of the femoral stem clamping hole are parallel, and D is greater than D, so that the auxiliary body clamping section 10 and the body clamping section 6 are locked in the femoral stem clamping hole and cannot be separated completely, and thus the clamping action of the femoral stem is completed; in the whole clamping process, the wrench 21 is only needed to be pulled off, so that the operation is very quick and simple;
When the specification of the device needs to be changed, the pressing block 30 is pressed, the spring 31 is compressed, the pressure between the fixed section 27 and the pressing block 30 is removed, and the clamping body 1 is taken down.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a femoral stem prosthesis implantation and extraction instrument of quick detach formula, includes centre gripping body (1), its characterized in that: centre gripping body (1) one side is provided with centre gripping assistor (2), centre gripping assistor (2) upper end is provided with elastomer (3), connect through locking mechanism (4) between elastomer (3) and centre gripping body (1), centre gripping body (1) upper end is provided with handle (5), centre gripping body (1) includes body centre gripping section (6), body slope section (7), the vertical section of body (8), linkage segment (9) from bottom to top in proper order, centre gripping assistor (2) includes assistor centre gripping section (10), assistor slope section (11), the vertical section of assistor (12) from bottom to top in proper order.
2. The quick release femoral stem prosthesis implantation and extraction tool of claim 1, wherein: one end that body centre gripping section (6) are close to auxiliary body centre gripping section (10) is provided with cutting groove (13) No. one, the one end that auxiliary body centre gripping section (10) kept away from body centre gripping section (6) is provided with cutting groove (14) No. two, auxiliary body centre gripping section (10) top thickness is D, auxiliary body centre gripping section (10) and auxiliary body slope section (11) link thickness are D, D is greater than D.
3. The quick release femoral stem prosthesis implantation and extraction tool of claim 1, wherein: the elastic body (3) comprises a curve elastic body (15) and a linear elastic body (16), the curve elastic body (15) and the linear elastic body (16) are integrally formed, a connecting circular ring (17) is arranged at one end, close to the locking mechanism (4), of the curve elastic body (15), and a connecting semi-ring (18) is arranged at one end, close to the locking mechanism (4), of the linear elastic body (16).
4. The quick release femoral stem prosthesis implantation and extraction tool of claim 1, wherein: locking mechanism (4) are including connecting block (19), spanner (20), a pin (21), No. two pins (22), No. three pins (23), a resistance circle (24), No. two resistance circles (25), connecting block (19) are located centre gripping body (1) middle part, spanner (20) are connected through a pin (21) and connecting block (19), No. two pin (22) pass spanner (20), a resistance circle (24) set up one side on a pin (21), No. two resistance circles (25) set up one side on No. two pin (22), No. three pin (23) are located connecting block (19) downside to pass connecting block (19).
5. The quick release femoral stem prosthesis implantation and extraction tool of claim 1, wherein: the connecting section (9) sequentially comprises a polygonal section (26), a fixed section (27) and a round head section (28) from bottom to top, a polygonal groove (29) is formed in one end, close to the connecting section (9), of the handle (5), a pressing block (30) transversely penetrates through the polygonal groove (29), a spring (31) is arranged on one side of the pressing block (30), a first fixing column (32) is arranged on the other side of the spring (31), a column groove (33) is formed in one side, far away from the spring (31), of the pressing block (30), and a second fixing column (34) is arranged in the column groove (33).
6. The quick release femoral stem prosthesis implantation and extraction tool of claim 5, wherein: the pressing block (30) is connected with the handle (5) through a first fixing column (32) and a second fixing column (34), one side of the pressing block (30) is exposed out of the handle (5), the connecting section (9) is inserted into the handle (5), the polygonal section (26) and the polygonal groove (29) are matched with each other, and the fixing section (27) is in contact with the pressing block (30).
7. The quick release femoral stem prosthesis implantation and extraction tool of claim 3, wherein: the positions where the linear elastic bodies (16) and the connecting half rings (18) are connected are smoothly transited.
8. The quick release femoral stem prosthesis implantation and extraction tool of claim 1, wherein: the clamping auxiliary body (2) is connected with the elastic body (3), the clamping body (1) is connected with the locking mechanism (4) through a pin (35).
9. The quick release femoral stem prosthesis implantation and extraction tool of claim 1, wherein: the clamping body (1), the clamping auxiliary body (2) and the elastic body (3) are made of titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543959.5A CN111839836B (en) | 2020-06-15 | 2020-06-15 | Quick-release femoral stem prosthesis implanting and extracting tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543959.5A CN111839836B (en) | 2020-06-15 | 2020-06-15 | Quick-release femoral stem prosthesis implanting and extracting tool |
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| Publication Number | Publication Date |
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| CN111839836A true CN111839836A (en) | 2020-10-30 |
| CN111839836B CN111839836B (en) | 2022-11-25 |
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| CN202010543959.5A Active CN111839836B (en) | 2020-06-15 | 2020-06-15 | Quick-release femoral stem prosthesis implanting and extracting tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440316A (en) * | 2021-06-29 | 2021-09-28 | 天衍医疗器材有限公司 | Can hit income formula thighbone condyle and hold ware |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0968693A2 (en) * | 1998-06-29 | 2000-01-05 | Johnson & Johnson Medical Limited | Inserter device |
| US20080269765A1 (en) * | 2007-04-27 | 2008-10-30 | Zimmer, Inc. | Instrument and method for implanting a prosthetic component |
| FR2963733A1 (en) * | 2010-08-16 | 2012-02-17 | Advanced Technical Fabrication | Prosthetic femoral stem and removable prosthetic cervix assembly, has gripper including connection units for fixing connection units on proximal gripping end of temporary insert in which proximal end exceeds out of cavity to fix gripper |
| CN102579168A (en) * | 2012-03-20 | 2012-07-18 | 杭州马斯汀医疗器材有限公司 | Universal prosthetic femoral stem extractor |
| CN106551735A (en) * | 2015-09-29 | 2017-04-05 | 北京纳通科技集团有限公司 | Pulp cavity Handle of file |
-
2020
- 2020-06-15 CN CN202010543959.5A patent/CN111839836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0968693A2 (en) * | 1998-06-29 | 2000-01-05 | Johnson & Johnson Medical Limited | Inserter device |
| US20080269765A1 (en) * | 2007-04-27 | 2008-10-30 | Zimmer, Inc. | Instrument and method for implanting a prosthetic component |
| FR2963733A1 (en) * | 2010-08-16 | 2012-02-17 | Advanced Technical Fabrication | Prosthetic femoral stem and removable prosthetic cervix assembly, has gripper including connection units for fixing connection units on proximal gripping end of temporary insert in which proximal end exceeds out of cavity to fix gripper |
| CN102579168A (en) * | 2012-03-20 | 2012-07-18 | 杭州马斯汀医疗器材有限公司 | Universal prosthetic femoral stem extractor |
| CN106551735A (en) * | 2015-09-29 | 2017-04-05 | 北京纳通科技集团有限公司 | Pulp cavity Handle of file |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440316A (en) * | 2021-06-29 | 2021-09-28 | 天衍医疗器材有限公司 | Can hit income formula thighbone condyle and hold ware |
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| CN111839836B (en) | 2022-11-25 |
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