CN215535343U - Acetabular cup ceramic lining taking-out device - Google Patents
Acetabular cup ceramic lining taking-out device Download PDFInfo
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- CN215535343U CN215535343U CN202121405817.9U CN202121405817U CN215535343U CN 215535343 U CN215535343 U CN 215535343U CN 202121405817 U CN202121405817 U CN 202121405817U CN 215535343 U CN215535343 U CN 215535343U
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- sleeve
- rod
- pole
- acetabular cup
- ceramic lining
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Abstract
The utility model discloses an acetabular cup ceramic lining taking-out device which comprises a main rod, a rubber bowl, a first sleeve, a second sleeve, a knocking rod and a reciprocating driving device, wherein the rubber bowl is fixedly connected with one end of the main rod, the first sleeve is sleeved at the other end of the main rod, the second sleeve is connected with the first sleeve through a rotating shaft, the axis of the rotating shaft is vertical to the axis of the first sleeve, the second sleeve can rotate around the axis direction of the rotating shaft, the knocking rod is inserted into an inner hole of the second sleeve, one end of the knocking rod is connected with the output end of the reciprocating driving device, and the reciprocating driving device is used for driving the knocking rod to linearly reciprocate, so that the safety of a ceramic lining can be guaranteed, the ceramic lining can be quickly loosened and taken out, and the operation time is saved.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an acetabular cup ceramic lining taking-out device.
Background
The hip joint replacement is the most effective treatment method for solving the final stage diseases of the hip joint diseases, the hip joint prosthesis interfaces comprise metal-polyethylene interfaces, metal-metal interfaces, ceramic-polyethylene interfaces and ceramic-ceramic interfaces, the brittleness of the ceramic is reduced along with the development of the fourth generation ceramic process, and the interfaces between the ceramic and the ceramic are the most wear-resistant interface relationship, so the service life of the prosthesis after the joint replacement is prolonged. In the operation process, after the metal mortar cup is installed, the ceramic lining is placed. In the placing process, the edge of the ceramic lining is required to be flush with the edge of the metal mortar cup, otherwise the ceramic lining is easy to crack in the moving process.
Once the ceramic lining is accurately placed, no matter the condition that the angle of the acetabulum needs to be adjusted during the revision of the prosthesis or the operation is met, the ceramic lining is difficult to take out again.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model relates to an acetabular cup ceramic liner extraction device which is simple and reliable in structure, effectively solves the technical problems, is suitable for popularization and application, and is realized by the following technical scheme:
the utility model provides an acetabular cup ceramic lining remove device, includes mobile jib, rubber bowl, first sleeve, second sleeve, strikes pole, reciprocating drive device, the one end fixed connection of rubber bowl and mobile jib, the other end of mobile jib is located to first sleeve cover, the second sleeve is connected with first sleeve through the pivot, the axis of pivot is mutually perpendicular with first telescopic axis, the second sleeve can rotate around the axis direction of pivot, strike the pole and insert and locate in the telescopic hole of second, the one end of striking the pole is connected with reciprocating drive device's output, reciprocating drive device is used for the drive to strike pole straight reciprocating motion.
On the basis of the above scheme and as a preferable scheme of the scheme: still include screw propulsion pole, sliding seat, branch, be equipped with the external screw thread section on the mobile jib, screw propulsion pole threaded connection in on the external screw thread section, the sliding seat cover is located on the mobile jib and is located between rubber bowl and the screw propulsion pole, the sliding seat symmetry is equipped with two mounting grooves, every install a branch through the articulated mode in the mounting groove.
On the basis of the above scheme and as a preferable scheme of the scheme: and one end of the support rod, which is far away from the movable seat, is provided with a hemisphere, and the plane end of the hemisphere is fixedly connected with the support rod.
On the basis of the above scheme and as a preferable scheme of the scheme: the end cover is in threaded connection with one end of the main rod, an annular limiting protruding portion is further arranged on the main rod, and the first sleeve is located between the end cover and the annular limiting protruding portion.
On the basis of the above scheme and as a preferable scheme of the scheme: and a ball body is arranged at one end of the knocking rod, which is far away from the reciprocating driving device.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:
1. the rubber cup is fixedly adsorbed on the ceramic lining, the second sleeve is used as a positioning guide device to guide the knocking rod, the reciprocating driving device is used for driving the knocking rod to reciprocate to knock the edge of the metal mortar cup, and the angle can be freely rotated, so that the safety of the ceramic lining can be ensured, the ceramic lining can be quickly loosened and taken out, and the operation time is saved;
2. when the spiral propelling rod is screwed in, the movable seat can move forwards, the spherical surface of the hemisphere is finally abutted against the inner surface of the ceramic lining, and the main rod, the supporting rod and the ceramic lining can form a stable position relation, so that the fixing effect is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic usage diagram.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, however, the specific embodiments and embodiments described below are only for illustrative purposes and are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the directions or positional relationships shown in fig. 1, are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
As shown in fig. 1-2, the utility model relates to a device for taking out a ceramic liner 13 of an acetabular cup, comprising a main rod 1, a rubber bowl 2, a first sleeve 3, a second sleeve 4, a knocking rod 5 and a reciprocating driving device 6, wherein the rubber bowl 2 is fixedly connected with one end of the main rod 1, the first sleeve 3 is sleeved at the other end of the main rod 1, the first sleeve 3 and the main rod 1 can rotate, the second sleeve 4 is connected with the first sleeve 3 through a rotating shaft 7, the axis of the rotating shaft 7 is perpendicular to the axis of the first sleeve 3, the second sleeve 4 can rotate around the axis of the rotating shaft 7, the knocking rod 5 is inserted into an inner hole of the second sleeve 4, one end of the knocking rod 5 is connected with an output end of the reciprocating driving device 6, the reciprocating driving device 6 is used for driving the knocking rod 5 to reciprocate linearly, the reciprocating driving device 6 preferably adopts a handheld driving device, the operator of being convenient for grips, can provide stable impact force, during the use, adsorbs through rubber bowl 2 and fixes on ceramic lining 13 to second sleeve 4 leads for location guider to knocking pole 5, recycles 6 drive of reciprocal drive arrangement and strikes 5 reciprocating motion of pole and strike the edge that metal mortar cup 14 was strikeed, can the free rotation angle, both can guarantee ceramic lining 13's safety, can make ceramic lining 13 not hard up take out fast again.
Considering that the fixing effect is not good only through the adsorption of the rubber bowl 2, in this embodiment, it is further preferable that the rubber bowl fixing device further includes a spiral propelling rod 8, a movable seat 9, and a supporting rod 10, the main rod 1 is provided with an external thread section 11, the spiral propelling rod 8 is connected to the external thread section 11 in a threaded manner, the external thread section 11 is longer than the spiral propelling rod 8, the spiral propelling rod 8 can be screwed in or screwed out along the axial direction, the movable seat 9 is sleeved on the main rod 1 and is located between the rubber bowl 2 and the spiral propelling rod 8, the movable seat 9 is symmetrically provided with two mounting grooves, one supporting rod 10 is installed in each mounting groove in a hinged manner, preferably, one end of the supporting rod 10 far away from the movable seat 9 is provided with a hemisphere 12, a plane end of the hemisphere 12 is fixedly connected with the supporting rod 10, when the spiral propelling rod 8 is screwed in, the movable seat 9 can move forward, finally, the spherical surface of the hemisphere 12 is tightly abutted to the inner surface of the ceramic lining 13, the main rod 1, the supporting rod 10 and the ceramic lining 13 form a stable position relation, and the fixing effect is improved.
In this embodiment, it is further preferable that the sleeve further includes an end cover 15, the end cover 15 is in threaded connection with one end of the main rod 1, an annular limiting protrusion 16 is further disposed on the main rod 1, the first sleeve 3 is located between the end cover 15 and the annular limiting protrusion 16, when the first sleeve 3 is sleeved on the main rod 1, one end of the first sleeve leans against the annular limiting protrusion 16, and then the end cover 15 is mounted, so that the axial limitation can be performed.
It is further preferred in this embodiment that the knocking rod 5 is provided with a ball 17 at its end remote from the reciprocating drive means 6, the spherical surface avoiding damage to the metal cup 14 during knocking.
The specific working principle is as follows: firstly, the rubber bowl 2 is extruded and adsorbed to be fixed on the ceramic lining 13, the precession spiral propelling rod 8 is screwed in to enable the movable seat 9 to move forwards, finally, the spherical surface of the hemispheroid 12 at the end part of the supporting rod 10 is abutted against the ceramic lining 13, so that the device is stably connected with the ceramic lining 13, the knocking rod 5 passes through the second sleeve 4 and then is connected with the output end of the reciprocating driving device 6, the reciprocating driving device 6 is utilized to drive the knocking rod 5 to knock the edge of the metal mortar cup 14 quickly in a multi-angle adjustable manner, finally, the separation of the ceramic lining 13 and the metal mortar cup 14 is completed, and the ceramic lining 13 is safely taken out.
It should be noted that the technical features of the reciprocating driving device, the screw connection, the hinge joint, etc. related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode, which may be related to the technical features, should be adopted as the conventional choice in the field, and should not be regarded as the utility model point of the present patent, and the present patent is not further specifically described in detail.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes in structure, shape and principle of the utility model should be covered by the protection scope of the utility model.
Claims (5)
1. The utility model provides an acetabular cup ceramic lining remove device which characterized in that: including mobile jib, rubber bowl, first sleeve, second sleeve, strike pole, reciprocal drive arrangement, the rubber bowl is with the one end fixed connection of mobile jib, the other end of mobile jib is located to first sleeve cover, the second sleeve is connected with first sleeve through the pivot, the axis of pivot is mutually perpendicular with first telescopic axis, the second sleeve can rotate around the axis direction of pivot, strike the pole and insert and locate in the telescopic hole of second, the one end of striking the pole is connected with reciprocal drive arrangement's output, reciprocal drive arrangement is used for the drive to strike pole straight line reciprocating motion.
2. The acetabular cup ceramic liner extraction device of claim 1, wherein: still include screw propulsion pole, sliding seat, branch, be equipped with the external screw thread section on the mobile jib, screw propulsion pole threaded connection in on the external screw thread section, the sliding seat cover is located on the mobile jib and is located between rubber bowl and the screw propulsion pole, the sliding seat symmetry is equipped with two mounting grooves, every install a branch through the articulated mode in the mounting groove.
3. The acetabular cup ceramic liner extraction device of claim 2, wherein: and one end of the support rod, which is far away from the movable seat, is provided with a hemisphere, and the plane end of the hemisphere is fixedly connected with the support rod.
4. The acetabular cup ceramic liner extraction device of claim 1, wherein: the end cover is in threaded connection with one end of the main rod, an annular limiting protruding portion is further arranged on the main rod, and the first sleeve is located between the end cover and the annular limiting protruding portion.
5. The acetabular cup ceramic liner extraction device of claim 1, wherein: and a ball body is arranged at one end of the knocking rod, which is far away from the reciprocating driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121405817.9U CN215535343U (en) | 2021-06-23 | 2021-06-23 | Acetabular cup ceramic lining taking-out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121405817.9U CN215535343U (en) | 2021-06-23 | 2021-06-23 | Acetabular cup ceramic lining taking-out device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215535343U true CN215535343U (en) | 2022-01-18 |
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ID=79820012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121405817.9U Active CN215535343U (en) | 2021-06-23 | 2021-06-23 | Acetabular cup ceramic lining taking-out device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215535343U (en) |
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2021
- 2021-06-23 CN CN202121405817.9U patent/CN215535343U/en active Active
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