CN219743011U - Conndylar holder capable of clamping prostheses of various sizes - Google Patents
Conndylar holder capable of clamping prostheses of various sizes Download PDFInfo
- Publication number
- CN219743011U CN219743011U CN202321363032.9U CN202321363032U CN219743011U CN 219743011 U CN219743011 U CN 219743011U CN 202321363032 U CN202321363032 U CN 202321363032U CN 219743011 U CN219743011 U CN 219743011U
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- China
- Prior art keywords
- sleeve
- knob
- clamping
- prostheses
- adjusting cylinder
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Links
- 238000000034 method Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008407 joint function Effects 0.000 description 2
- 208000006820 Arthralgia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The utility model provides a condyle retainer capable of clamping prostheses of various sizes. The condyle retainer capable of clamping prostheses of various sizes comprises: a sleeve; the clamping mechanism comprises a first elastic piece, two clamping jaws and a driving rod, wherein the first elastic piece is arranged between the two clamping jaws; the adjusting device comprises a knob, a connecting shaft and an adjusting cylinder. According to the condyle retainer capable of clamping prostheses of various sizes, provided by the utility model, the distance between the two clamping jaws is adjusted according to prostheses of different types, the knob is screwed to drive the connecting shaft to rotate so as to drive the adjusting cylinder to rotate, and the adjusting cylinder is elliptical, so that the distance between the two driving rods can be adjusted by matching with the elastic expansion of the first elastic piece during rotation, the distance between the two clamping jaws is adjusted, prostheses of different types are adapted, and the clamping between the clamping jaws and the prostheses is more stable.
Description
Technical Field
The utility model relates to the field of condylar holders, in particular to a condylar holder capable of clamping prostheses of various sizes.
Background
An artificial joint replacement is made of metal or ceramic, is implanted into human body by surgical technique to replace diseased joint function, and can relieve joint pain and recover joint function. In the unicondylar operation process, after the test mold is installed, the test mold is pulled out through the condyle retainer, and then the subsequent operation is performed.
At present, the used condyle holding device needle can have the problems that the clamping is unstable and the pulling process is not simple and convenient when the prosthesis with different models is pulled out, and the test die can fall off after the prosthesis is pulled out.
Accordingly, there is a need to provide a condyle retainer which can hold a variety of sizes of prostheses.
Disclosure of Invention
The utility model provides a condyle retainer capable of clamping prostheses of various sizes, which solves the problem that the common condyle retainer is unstable in clamping for prostheses of different types.
In order to solve the technical problems, the utility model provides a condyle retainer capable of clamping prostheses of various sizes, comprising: a sleeve;
the clamping mechanism comprises a first elastic piece, two clamping jaws and a driving rod, wherein the first elastic piece is arranged between the two clamping jaws, one ends of the two clamping jaws extend to the inside of the sleeve, and the two driving rods are correspondingly connected to one ends of the clamping jaws, which are positioned in the sleeve;
the adjusting device comprises a knob, a connecting shaft and an adjusting cylinder, the knob is sleeved at one end, far away from the clamping jaw, of the sleeve, one end of the connecting shaft is fixed to the knob, the other end of the connecting shaft is connected with the adjusting cylinder, the adjusting cylinder is an oval cylinder, and the two driving rods extend into the adjusting cylinder;
the positioning device is used for limiting the axial direction of the knob;
the sliding hammer is sleeved on the sleeve.
Preferably, one end of the clamping jaw is in sliding connection with the sleeve.
Preferably, limiting plates are symmetrically arranged in the sleeve, a sliding cavity is formed between the two limiting plates, and one end of the driving rod penetrates through the sliding cavity and then extends to the inside of the adjusting cylinder.
Preferably, the positioning device comprises a limiting ring and a toothed ring, the toothed ring is mounted at one end of the knob, which faces towards clamping, one end of the limiting ring is fixed at one end of the sleeve, which is close to the knob, a gap is reserved between the limiting ring and the sleeve, and a tooth slot is formed in the limiting ring in a surrounding mode.
Preferably, a baffle ring is arranged in the sleeve and positioned on one side of the adjusting cylinder, and a second elastic piece is sleeved between the baffle ring and the adjusting cylinder.
Preferably, the first elastic member and the second elastic member are springs.
Preferably, the surface of the knob is provided with a convex edge in a surrounding manner.
Compared with the related art, the condyle retainer capable of clamping prostheses of various sizes has the following beneficial effects:
the utility model provides a condyle holder capable of clamping prostheses of various sizes, when in use, the spacing between two clamping jaws is adjusted according to prostheses of different models, a knob is screwed, and the knob drives a connecting shaft to rotate, so that an adjusting cylinder is driven to rotate.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of a condyle retainer for holding multiple size prostheses of the present utility model;
FIG. 2 is a cross-sectional view of the device shown in FIG. 1;
FIG. 3 is a schematic view of the portion shown in FIG. 1;
FIG. 4 is a schematic view of the stop collar shown in FIG. 1;
fig. 5 is a schematic side view of the adjustment cylinder and the driving rod shown in fig. 3.
Reference numerals in the drawings:
1. a sleeve;
2. the clamping mechanism 21, the clamping jaw 22, the driving rod 23 and the first elastic piece;
3. the device comprises an adjusting device 31, a knob 32, a connecting shaft 33 and an adjusting cylinder;
4. the positioning device 41, the limiting ring 42, the tooth grooves 43 and the toothed ring;
5. a slide hammer;
6. a baffle ring 7 and a second elastic piece;
8. and a limiting block.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
Referring to fig. 1, 2, 3 and 4 in combination, a condyle retainer for holding a prosthesis of various sizes, comprising: a sleeve 1;
the clamping mechanism 2 comprises a first elastic piece 23, two clamping jaws 21 and a driving rod 22, wherein the first elastic piece 23 is arranged between the two clamping jaws 21, one ends of the two clamping jaws 21 extend to the inside of the sleeve 1, a movable gap is reserved between the two clamping jaws 21 and the inner wall of the inside of the sleeve 1, and the two driving rods 22 are correspondingly connected to one ends of the clamping jaws 21 positioned in the inside of the sleeve 1;
the adjusting device 3 comprises a knob 31, a connecting shaft 32 and an adjusting cylinder 33, wherein the knob 31 is sleeved at one end, far away from the clamping jaw 21, of the sleeve 1, one end of the connecting shaft 32 is fixed on the knob 31, the other end of the connecting shaft 32 is connected with the adjusting cylinder 33, the adjusting cylinder 33 is an oval cylinder, and the two driving rods 22 extend into the adjusting cylinder 33;
a positioning device 4, wherein the positioning device 4 is used for limiting the axial direction of the knob 31;
and the sliding hammer 5 is sleeved on the sleeve 1.
When the device is used, the distance between the two clamping jaws 21 is adjusted according to prostheses of different types, the knob 31 is screwed, the knob 31 drives the connecting shaft 32 to rotate, the adjusting cylinder 33 is driven to rotate, the adjusting cylinder 33 is elliptical, the elastic expansion of the first elastic piece 23 is matched, when the adjusting cylinder 33 is rotated, the distance between the two driving rods 22 is gradually reduced when the two driving rods 22 are turned from the long diameter of the adjusting cylinder 33 to the short diameter, meanwhile, the first elastic piece 23 is compressed by the two clamping jaws 21, when the two driving rods 22 are turned from the short diameter of the adjusting cylinder 33 to the long diameter, the two driving rods 22 are gradually opened through the elastic action of the first elastic piece 23, therefore, the distance between the two driving rods 22 is adjusted, the distance between the two clamping jaws 21 is adjusted, the device is suitable for prostheses of different types, and clamping between the clamping jaws and the prostheses is more stable.
And after each adjustment, the distance between the two clamping jaws 21 is made smaller than the prosthesis, so that the clamping can be carried out more stably by the action of the first elastic piece 23 during clamping.
One end of the clamping jaw 21 is slidably connected to the sleeve 1.
By slidably connecting the jaws 21 to the sleeve 1, the two jaws 21 can only be moved to opposite sides or to opposite sides, which makes the adjustment more stable.
Referring to fig. 2, in the present embodiment, the sleeve 1 is symmetrically provided with limiting plates 8 inside, a sliding cavity is formed between two limiting plates 8, and one end of the driving rod 22 extends to the inside of the adjusting cylinder 33 after penetrating through the sliding cavity.
The width of the sliding cavity is the same as the diameter of the driving rod 22, so that the driving rod 22 can only slide along the sliding cavity to form sliding fit;
in other embodiments, a sliding rod may be installed inside the sleeve 1, and the driving rod 22 is sleeved on the sliding rod to form a sliding fit.
Referring to fig. 2 to 4, in the present embodiment, the positioning device 4 includes a limiting ring 41 and a toothed ring 43, the toothed ring 43 is mounted at one end of the knob 31 facing the clamp 21, one end of the limiting ring 41 is fixed at one end of the sleeve 1 near the knob 31, a gap is left between the limiting ring 41 and the sleeve 1, and a tooth slot 42 is formed around the inside of the limiting ring 41.
When the knob 31 is screwed for adjustment, the knob 31 is pulled to drive the toothed ring 43 to move out of the limiting ring 41 and separate from the tooth grooves 42, at this time, the knob 31 can be rotated to adjust the distance between the two clamping jaws 21, after the adjustment is completed, the knob 31 is pushed to enable the toothed ring 43 to be inserted into the gap and enable the toothed ring 43 to be meshed with the tooth grooves 42, so that the knob 31 is limited, namely the adjusting cylinder 33 is limited, and the two clamping jaws 21 can stably keep the adjusted size.
In other embodiments, a bolt may be screwed on the sleeve 1, and the axial limiting function may be achieved by tightening the bolt to tighten the knob 31.
Referring to fig. 2, a blocking ring 6 is disposed inside the sleeve 1 and at one side of the adjusting cylinder 33, and a second elastic member 7 is sleeved between the blocking ring 6 and the adjusting cylinder 33.
The toothed ring 43 can be stably meshed with the tooth groove 42 by the elastic thrust of the second elastic piece 7, so that the stability of the positioning device 4 is improved.
The first elastic member 23 and the second elastic member 7 are springs.
Other elastic members such as springs may be used.
The knob 31 is provided with a rib around its surface.
By providing ribs on the surface of the knob 31, friction between the hand and the knob 31 is improved, and the knob 31 is better unscrewed.
Referring to fig. 5, in order to illustrate a side cross-sectional view of the adjusting cylinder and the driving rod, a circumferential sliding groove (not shown) is formed in the adjusting cylinder 33, and a slider (not shown) adapted to the sliding groove is disposed at an end of the driving rod 22 inside the adjusting cylinder 33, so that the driving rod 22 can slide in the sliding groove without being separated.
The working principle of the condyle retainer capable of clamping prostheses of various sizes provided by the utility model is as follows:
when the device is used, the knob 31 is pulled to enable the toothed ring 43 to move out of the tooth space, then the knob 31 is rotated, the knob drives the connecting shaft 32 to rotate to drive the adjusting cylinder 33 to rotate, when the two driving rods 22 are turned from the long diameter of the adjusting cylinder 33 to the short diameter, the distance between the two driving rods 22 is gradually reduced, and meanwhile, the two clamping jaws 21 compress the first elastic piece 23, and when a prosthesis is clamped, only the prosthesis is required to be pressed;
pulling out the test mould from the joint of the patient by vibrating the sliding hammer 5 backwards;
when the two driving rods 22 are turned from the short diameter to the long diameter of the adjusting cylinder 33, the two driving rods 22 are gradually opened under the elastic action of the first elastic piece 23, so that the distance between the two driving rods 22 is adjusted, the distance between the two clamping jaws 21 is adjusted, and the prosthesis can be loosened;
after the completion, loosen knob 31, through the effect of second elastic component 7, promote the ring gear 43 and the tooth's socket 42 meshing on the knob 31 of pushing the adjustment section of thick bamboo 33, realize the axial spacing to the adjustment section of thick bamboo 33, after fixed apparatus at last.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A condylar-holding device capable of holding prostheses of various sizes, comprising: a sleeve;
the clamping mechanism comprises a first elastic piece, two clamping jaws and a driving rod, wherein the first elastic piece is arranged between the two clamping jaws, one ends of the two clamping jaws extend to the inside of the sleeve, and the two driving rods are correspondingly connected to one ends of the clamping jaws, which are positioned in the sleeve;
the adjusting device comprises a knob, a connecting shaft and an adjusting cylinder, the knob is sleeved at one end, far away from the clamping jaw, of the sleeve, one end of the connecting shaft is fixed to the knob, the other end of the connecting shaft is connected with the adjusting cylinder, the adjusting cylinder is an oval cylinder, and the two driving rods extend into the adjusting cylinder;
the positioning device is used for limiting the axial direction of the knob;
the sliding hammer is sleeved on the sleeve.
2. The condyle retainer capable of holding multiple-size prostheses of claim 1, wherein one end of said jaw is slidingly connected to said sleeve.
3. The condyle retainer capable of clamping multiple-size prostheses according to claim 2, wherein limiting plates are symmetrically arranged in the sleeve, a sliding cavity is formed between the two limiting plates, and one end of the driving rod penetrates through the sliding cavity and then extends into the adjusting cylinder.
4. The device of claim 1, wherein the positioning device comprises a stop collar and a toothed ring, the toothed ring is mounted at one end of the knob facing the clamp, one end of the stop collar is fixed at one end of the sleeve near the knob, a gap is reserved between the stop collar and the sleeve, and a tooth slot is formed around the inner part of the stop collar.
5. The condyle retainer capable of holding multiple-size prostheses of claim 4, wherein a baffle ring is arranged inside the sleeve and on one side of the adjusting cylinder, and a second elastic piece is sleeved between the baffle ring and the adjusting cylinder.
6. The condyle retainer capable of holding multiple-size prostheses of claim 1, wherein said first resilient member and said second resilient member are each springs.
7. The condyle retainer capable of holding multiple-size prostheses of claim 1, wherein a surface of said knob is circumferentially provided with a rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321363032.9U CN219743011U (en) | 2023-05-31 | 2023-05-31 | Conndylar holder capable of clamping prostheses of various sizes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321363032.9U CN219743011U (en) | 2023-05-31 | 2023-05-31 | Conndylar holder capable of clamping prostheses of various sizes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219743011U true CN219743011U (en) | 2023-09-26 |
Family
ID=88075018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321363032.9U Active CN219743011U (en) | 2023-05-31 | 2023-05-31 | Conndylar holder capable of clamping prostheses of various sizes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219743011U (en) |
-
2023
- 2023-05-31 CN CN202321363032.9U patent/CN219743011U/en active Active
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