CN220512959U - Prosthesis depth limiting installation device - Google Patents
Prosthesis depth limiting installation device Download PDFInfo
- Publication number
- CN220512959U CN220512959U CN202222166819.8U CN202222166819U CN220512959U CN 220512959 U CN220512959 U CN 220512959U CN 202222166819 U CN202222166819 U CN 202222166819U CN 220512959 U CN220512959 U CN 220512959U
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- CN
- China
- Prior art keywords
- sleeve
- prosthesis
- rod
- mounting
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009434 installation Methods 0.000 title claims abstract description 11
- 210000000689 upper leg Anatomy 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims 1
- 210000004394 hip joint Anatomy 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 210000000588 acetabulum Anatomy 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model discloses a prosthesis depth limiting installation device, which comprises: the sleeve is internally provided with a mounting hole, the axis of the mounting hole is parallel to the axis of the sleeve, and one end of the mounting hole is arranged at one end of the sleeve; the screw rod is movably arranged in the mounting hole; the adjusting part is arranged on the outer wall of the sleeve and is operable to drive the screw rod to move along the length direction of the sleeve; the fixing part is arranged on the outer wall of the sleeve and can be in operable contact with the peripheral surface of the outer ring of the screw; and the limiting part is arranged at one end of the sleeve and can be operably propped against the femur of the patient. By applying the utility model, the prosthesis installation device with the depth limiting function is provided, the length of the screw rod can be adjusted through the adjusting part according to the actual condition of a patient in the operation process so as to control the driving depth of the prosthesis, and the driving depth of the prosthesis into the hip joint of the patient is further limited through the limiting part, so that the depth of the prosthesis is prevented from being too deep.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a depth limiting installation device for a prosthesis.
Background
In the medical field, artificial hip arthroplasty is widely used as a clinical treatment. The artificial hip joint replacement is to implant artificial hip joint prosthesis to the hip joint position of human body via the hip joint installing device to eliminate pain of patient. Hip joint prostheses are used to replace the hip joint of the human body, and the surgical procedure includes: inserting the femoral stem prosthesis into a femoral medullary cavity and installing a ball head; and the acetabular cup and the liner which are arranged in the acetabulum are matched to realize the function of the hip joint. Wherein, when the femoral stem prosthesis is installed, the femoral stem prosthesis needs to be matched with an instrument to complete two operations of holding the femoral stem prosthesis and striking the upper part of the femoral stem prosthesis to completely insert the femoral stem prosthesis into the medullary cavity. In the existing femoral stem driver, a limiting device is lacked, the driver needs to pay attention to the driving depth in real time in the driving process, otherwise discomfort of a patient is easily caused.
Disclosure of Invention
In view of the above, an object of the present utility model is to provide a depth-limiting prosthesis attachment device, comprising:
the sleeve is internally provided with a mounting channel, the axis of the mounting channel is parallel to the axis of the sleeve, and one end of the mounting channel is arranged at one end of the sleeve;
a moving rod movably installed in the installation channel;
the adjusting part is arranged on the outer wall of the sleeve and is operable to drive the moving rod to move along the length direction of the sleeve;
the fixed part is arranged on the outer wall of the sleeve and is operably abutted against the peripheral surface of the outer ring of the movable rod;
and the limiting part is arranged at one end of the sleeve and can be operably propped against the femur of the patient.
In another preferred embodiment, the mounting channel comprises a first channel and a second channel in communication in sequence, the first channel having an inner diameter smaller than the inner diameter of the second channel.
In another preferred embodiment, the adjusting portion includes: the device comprises a gear, a connecting rod, a first knob, an adjusting hole and a gear strip, wherein the adjusting hole is formed in the outer wall of the sleeve, the gear is installed in the second channel, the connecting rod is rotatably installed in the adjusting hole, the gear is installed at one end of the connecting rod, the rack is arranged along the length direction of the moving rod, the gear is meshed with the rack, and the first knob is installed at the other end of the connecting rod.
In another preferred embodiment, the fixing portion includes: the fixed rod, second knob and screw hole, the screw hole is offered on telescopic outer wall, is provided with the screw thread on the fixed rod, and fixed rod threaded connection is in screw hole, and the outer wall indent of the one end of movable rod forms there is a fixed slot, and the one end of fixed rod is operatively inconsistent with the inner wall of fixed slot, and the second knob is installed on the other end of fixed rod.
In another preferred embodiment, the fixing groove is provided along the length direction of the moving rod.
In another preferred embodiment, the stopper includes: two gag levers, two mounting panels and two gaskets, one side of two mounting panels is installed in the both sides of telescopic one end respectively, and the one end of two gag levers articulates respectively on two mounting panels, and two gaskets articulate respectively on the other end of a gag lever post, and each gasket is all operable to support on patient's femur.
In another preferred embodiment, each mounting plate has a vertical mounting surface, and one end of the stop bar is hinged to the vertical mounting surface.
In another preferred embodiment, further comprising: two locking knobs and two locking screw rods are all provided with an arc hole on each mounting panel, and the one end of each gag lever post all with locking screw rod's one end fixed connection, the other end of each locking screw rod all slidably passes the arc hole setting, and a locking knob is all installed to the other end of each locking screw rod, and locking knob operatively supports on the mounting panel one side of keeping away from the gag lever post.
In another preferred embodiment, the device further comprises a protective sleeve, the protective sleeve is sleeved on the other end of the sleeve, a striking surface is formed on one side, away from the sleeve, of the protective sleeve, and the axis of the sleeve is perpendicular to the striking surface.
In another preferred embodiment, further comprising: the striking head is sleeved on one end of the moving rod.
By adopting the technical scheme, the utility model has the positive effects compared with the prior art that: by applying the utility model, the prosthesis installation device with the depth limiting function is provided, the length of the movable rod can be adjusted through the adjusting part according to the actual condition of a patient in the operation process so as to control the driving depth of the prosthesis, and the depth of the prosthesis driven into the hip joint of the patient is further limited through the limiting part, so that the prosthesis is prevented from being too deep.
Drawings
FIG. 1 is a schematic cross-sectional view of a depth-limiting prosthetic mounting apparatus of the present utility model;
fig. 2 is a schematic side view of a depth-limiting prosthetic mounting apparatus of the present utility model.
In the accompanying drawings: 1. a sleeve; 2. a mounting channel; 3. a moving rod; 4. a threaded hole; 5. an adjustment aperture; 6. a first channel; 7. a second channel; 8. a fixing groove; 9. a fixed rod; 10. a second knob; 11. a gear; 12. a connecting rod; 13. a first knob; 14. a limit rod; 15. a mounting plate; 16. a gasket; 17. locking the screw rod; 18. a protective sleeve; 19. a striking head; 20. a locking knob; 21. a rack.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
As shown in fig. 1 to 2, there is shown a prosthesis depth limiting installation device of a preferred embodiment, comprising:
the sleeve 1 is internally provided with a mounting channel 2, the axis of the mounting channel 2 is parallel to the axis of the sleeve 1, and one end of the mounting channel 2 is arranged at one end of the sleeve 1; a moving rod 3, the moving rod 3 being movably installed in the installation channel 2; an adjusting part which is arranged on the outer wall of the sleeve 1 and is operable to drive the moving rod 3 to move along the length direction of the sleeve 1; a fixing part which is arranged on the outer wall of the sleeve 1 and is operably abutted against the outer circumferential surface of the movable rod 3; and the limiting part is arranged on one end of the sleeve 1 and can be propped against the femur of a patient in an operation mode. In the actual use process, firstly, according to the actual condition of a patient, the angle of the limiting part is adjusted and fixed, the length of the moving rod 3 extending out of the sleeve 1 is adjusted through the adjusting part, so that the moving rod 3 is positioned at a proper position, then the moving rod 3 is fixed through the fixing part, and when the prosthesis is driven into, the prosthesis can be driven into when the limiting part just abuts against the femur of the patient.
Further, as a preferred embodiment, the mounting channel 2 includes a first channel 6 and a second channel 7 which are sequentially communicated, and an inner diameter of the first channel 6 is smaller than an inner diameter of the second channel 7.
Further, as a preferred embodiment, the adjusting portion includes: the electric cylinder comprises a gear 11, a connecting rod 12, a first knob 13, an adjusting hole 5 and a rack 21, wherein the adjusting hole 5 is formed in the outer wall of the sleeve 1, the gear 11 is installed in the second channel 7, the connecting rod 12 is rotatably installed in the adjusting hole 5, the gear 11 is installed on one end of the connecting rod 12, the rack 21 is arranged along the length direction of the electric cylinder 3, the gear 11 is meshed with the rack 21, and the first knob 13 is installed on the other end of the connecting rod 12.
Further, as a preferred embodiment, when the length of the moving rod 3 extending out of the sleeve 1 needs to be adjusted, the first knob 13 is rotated to drive the connecting rod 12 to rotate, the connecting rod 12 rotates and simultaneously drives the gear 11 to rotate, and the gear 11 can drive the moving rod 3 to extend out of or retract into the sleeve 1 through the rack 21.
Further, as a preferred embodiment, a length scale is provided on the outer wall of one end of the movable rod 3 for observing the length of the movable rod extending out of the sleeve 1.
Further, as a preferred embodiment, the fixing portion includes: the fixed rod 9, the second knob 10 and the threaded hole 4, the threaded hole 4 is formed in the outer wall of the sleeve 1, threads are arranged on the fixed rod 9, the fixed rod 9 is in threaded connection with the threaded hole 4, a fixed groove 8 is formed in the outer wall of one end of the movable rod 3, one end of the fixed rod 9 is in operable interference with the inner wall of the fixed groove 8, and the second knob 10 is mounted on the other end of the fixed rod 9.
Further, as a preferred embodiment, when the length of the moving rod 3 extending out of the sleeve 1 is adjusted, the fixed rod 9 is separated from the moving rod 3, and after the length of the moving rod 3 extending out of the sleeve 1 is adjusted, the second knob 10 is twisted until one end of the fixed rod 9 abuts against the moving rod 3, so as to complete the fixation.
Further, as a preferred embodiment, the fixed groove 8 is provided along the length direction of the moving rod 3.
Further, as a preferred embodiment, the limiting portion includes: two gag lever posts 14, two mounting plates 15 and two gaskets 16, one side of two mounting plates 15 is installed in the both sides of one end of sleeve 1 respectively, and the one end of two gag lever posts 14 is articulated respectively to be installed on two mounting plates 15, and two gaskets 16 are articulated respectively on the other end of a gag lever post 14, and each gasket 16 is all operable on the femur of patient.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the embodiments and the protection scope of the present utility model.
The present utility model has the following embodiments based on the above description:
in a further embodiment of the utility model, each mounting plate 15 has a vertical mounting surface to which one end of the stop lever 14 is hinged.
In a further embodiment of the present utility model, further comprising: two locking knobs 20 and two locking screws 17 are provided with an arc hole on each mounting plate 15, one end of each limiting rod 14 is fixedly connected with one end of each locking screw 17, the other end of each locking screw 17 slidably penetrates through the arc hole, one locking knob 20 is mounted at the other end of each locking screw 17, and the locking knob 20 is operably propped against one side of the mounting plate 15 away from the limiting rod 14.
In a further embodiment of the present utility model, the present utility model further includes a protective sleeve 18, the protective sleeve 18 is sleeved on the other end of the sleeve 1, a striking surface is disposed on the protective sleeve 18, and the axis of the sleeve 1 is perpendicular to the plane of the striking surface.
In a further embodiment of the present utility model, the present utility model further comprises a striking head 19, wherein the striking head 19 is sleeved on one end of the moving rod 3.
In a further embodiment of the present utility model, the striking head 19 is provided in various sizes, and the appropriate striking head 19 is selected according to the actual situation of the patient.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.
Claims (10)
1. A prosthesis depth limiting installation device, comprising:
the sleeve is internally provided with a mounting channel, and one end of the mounting channel penetrates through one end of the sleeve and forms the mounting channel;
a moving rod movably installed in the installation channel;
an adjustment portion mounted on an outer wall of the sleeve, the adjustment portion being operable to drive the travel bar to move along a length direction of the sleeve;
a fixing portion mounted on an outer wall of the sleeve, the fixing portion being operatively abutted on an outer circumferential surface of the moving rod;
and the limiting part is arranged on one end of the sleeve, and the limiting part can be propped against the femur of the patient in an operation mode.
2. The prosthesis depth limiting mounting apparatus of claim 1, wherein the mounting channel comprises a first channel and a second channel in sequential communication, the first channel having an inner diameter smaller than an inner diameter of the second channel.
3. The prosthesis depth limiting mounting apparatus of claim 2, wherein the adjustment portion comprises: the device comprises a gear, a connecting rod, a first knob and a rack, wherein an adjusting hole is formed in the outer wall of the sleeve, the gear is installed in the second channel, the connecting rod is rotatably installed in the adjusting hole, the gear is installed at one end of the connecting rod, the rack is arranged along the length direction of the movable rod, the gear is meshed with the rack, and the first knob is installed at the other end of the connecting rod.
4. A prosthesis depth limiting mounting apparatus as claimed in claim 3, wherein the securing portion comprises: the fixed rod and the second knob, a screw hole has been seted up on telescopic outer wall, be provided with the screw thread on the fixed rod, fixed rod threaded connection in threaded hole, the outer wall indent of the one end of movable rod forms there is a fixed slot, the one end of fixed rod operatively with the inner wall of fixed slot is inconsistent, the second knob install in on the other end of fixed rod.
5. The prosthesis depth stop mounting apparatus of claim 4, wherein the fixation groove is disposed along a length of the displacement rod.
6. The prosthesis depth stop mounting apparatus of claim 1, wherein the stop portion comprises: two gag levers, two mounting panels and two gaskets, two one side of mounting panel install respectively in the both sides of telescopic one end, two the one end of gag lever post is installed respectively rotatably two on the mounting panel, two the gasket is installed respectively rotatably one on the other end of gag lever post, every gasket is all operable to support on patient's femur.
7. The prosthesis depth stop mounting apparatus of claim 6, wherein each of the mounting plates has a vertical mounting surface, one end of the stop lever being rotatably mounted to the vertical mounting surface.
8. The prosthesis depth limiting mounting apparatus of claim 7, further comprising: two locking knobs and two locking screw rods, each the mounting panel is provided with an arc hole, each the one end of gag lever post all with locking screw rod's one end fixed connection, each locking screw rod's the other end all slidable ground passes the arc hole sets up, each locking screw rod's the other end all installs one locking knob, locking knob operatively support in the mounting panel is kept away from on the one side of gag lever post.
9. The prosthesis depth limiting mounting apparatus of claim 1, further comprising: the protective sleeve is sleeved on the other end of the sleeve, a striking surface is formed on one side, away from the sleeve, of the protective sleeve, and the axis of the sleeve is perpendicular to the striking surface.
10. The prosthesis depth limiting mounting apparatus of claim 1, further comprising: the striking head is sleeved on one end of the movable rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222166819.8U CN220512959U (en) | 2022-08-17 | 2022-08-17 | Prosthesis depth limiting installation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222166819.8U CN220512959U (en) | 2022-08-17 | 2022-08-17 | Prosthesis depth limiting installation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220512959U true CN220512959U (en) | 2024-02-23 |
Family
ID=89925075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222166819.8U Active CN220512959U (en) | 2022-08-17 | 2022-08-17 | Prosthesis depth limiting installation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220512959U (en) |
-
2022
- 2022-08-17 CN CN202222166819.8U patent/CN220512959U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |