CN210019578U - Femoral head extraction device - Google Patents
Femoral head extraction device Download PDFInfo
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- CN210019578U CN210019578U CN201920475755.5U CN201920475755U CN210019578U CN 210019578 U CN210019578 U CN 210019578U CN 201920475755 U CN201920475755 U CN 201920475755U CN 210019578 U CN210019578 U CN 210019578U
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Abstract
The utility model provides a femoral head extraction device. A femoral head extraction device comprising: a clamping assembly having a clamping space for clamping a femoral head, the clamping space being adjustably sized; the ejection structure is movably arranged in the clamping space in a penetrating way and is provided with a puncture part which can penetrate into the femoral head; the adjusting structure is arranged on the clamping component, and at least part of the puncture part penetrates into the femoral head, so that the size of the clamping space is adjusted through the adjusting structure, the femoral head is clamped by the clamping component, and the femoral head is taken out from the acetabulum socket. The utility model discloses it is lower to have solved effectively among the prior art taking out of femoral head extraction equipment, the difficult problem that reaches the anticipated effect.
Description
Technical Field
The utility model relates to an orthopedic medical instrument particularly, relates to a femoral head extraction equipment.
Background
At present, in the hip joint replacement surgery of orthopaedics, the surface of the femoral head after osteotomy is in an acetabulum socket, the femoral head is not easy to hold, and a femoral head extractor is needed to extract the femoral head after osteotomy. In the prior art, femoral head extractors with helical tapered drills are commonly used, which have a small taper angle in order to facilitate insertion of the helical tapered drill into the femoral head. However, in the femoral head extraction process, if the taper angle is too small, the adhesion force of the spiral conical drill is small, which is not beneficial to femoral head extraction; if the taper angle is too large, the spiral conical drill is not convenient to insert into the femoral head, so that the femoral head is difficult to take out, and the expected effect is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a femoral head extraction device to solve the extraction rate of femoral head extraction device among the prior art lower, the difficult problem that reaches the expectancy effect.
In order to achieve the above object, the present invention provides a femoral head extraction device, including: a clamping assembly having a clamping space for clamping a femoral head, the clamping space being adjustably sized; the ejection structure is movably arranged in the clamping space in a penetrating way and is provided with a puncture part which can penetrate into the femoral head; the adjusting structure is arranged on the clamping component, and at least part of the puncture part penetrates into the femoral head, so that the size of the clamping space is adjusted through the adjusting structure, the femoral head is clamped by the clamping component, and the femoral head is taken out from the acetabulum socket.
Further, the portion is established including the cover to the adjustment structure, and the centre gripping subassembly includes: a pivot portion; the clamping device comprises a plurality of clamping pieces, wherein the clamping pieces are arranged around a pivoting part to form a clamping space, each clamping piece is pivotally connected with the pivoting part, and a sleeving part is sleeved on the clamping pieces to adjust the sleeving position of the sleeving part on each clamping piece to adjust the size of the clamping space.
Further, the sleeve part is positioned above the pivot part.
Further, ejecting structure is rod-shaped structure, and some rod-shaped structure have the screw thread section, and the adjustment structure still includes: the adjusting part is provided with an internal thread hole, the rod-shaped structure penetrates through the pivoting part and penetrates through the adjusting part to enable the thread section to be in threaded connection with the internal thread hole, the adjusting part is further provided with an installation concave part, and part of the sleeved part stretches into the installation concave part to enable the adjusting part to drive the sleeved part to move towards or away from the pivoting part along the extending direction of the rod-shaped structure to adjust the size of the clamping space.
Further, the mounting concave part is an annular groove or an arc-shaped groove.
Further, the adjusting part is of a cylindrical structure, and the central axis of the cylindrical structure is coaxial with the central axis of the rod-shaped structure.
Further, the outer surface of the adjusting part is provided with anti-skid grains.
Furthermore, the sleeving part is provided with a plurality of through holes, the through holes and the clamping pieces are arranged in a one-to-one correspondence mode, and each clamping piece penetrates through the through hole corresponding to the clamping piece.
Further, each clamp comprises: the surface of the clamping part facing to the femoral head is provided with a tooth-shaped structure; the connecting portion is connected with the clamping portion, the sleeving portion is sleeved on the connecting portion, the connecting portion is of a first arc-shaped plate-shaped structure, and the arc center of the first arc-shaped plate-shaped structure is located on one side, away from the ejection structure, of the first arc-shaped plate.
Furthermore, the clamping part is a second arc-shaped plate-shaped structure, and the arc center of the second arc-shaped plate-shaped structure is positioned on one side, facing the ejection structure, of the second arc-shaped plate-shaped structure.
Further, the ejection structure is a rod-shaped structure, and distances between the clamping pieces and the rod-shaped structure are consistent in a reference plane perpendicular to the extending direction of the rod-shaped structure.
Use the technical scheme of the utility model, femoral head extraction equipment includes centre gripping subassembly, ejecting structure and adjustment structure. Wherein the clamping assembly has a clamping space for clamping the femoral head, the clamping space being adjustably sized. The ejection structure is movably arranged in the clamping space in a penetrating way and is provided with a puncture part which can penetrate into the femoral head. The adjusting structure is arranged on the clamping component, and at least part of the puncture part penetrates into the femoral head, so that the size of the clamping space is adjusted through the adjusting structure, the femoral head is clamped by the clamping component, and the femoral head is taken out from the acetabulum socket. In this way, during use of the femoral head extraction device by a practitioner, the ejection structure is operated such that the penetrating portion of the ejection structure penetrates into the femoral head to prevent movement of the femoral head relative to the ejection structure. Then, the staff operates the adjustment structure to through the centre gripping space of adjustment structure adjustment centre gripping subassembly, so that the centre gripping subassembly can be with the femoral head centre gripping, so that the staff takes out the femoral head from the acetabulum nest through the centre gripping subassembly, and then makes the staff take out easier, simple and convenient to the femoral head, has solved among the prior art that the extraction rate of femoral head extraction equipment is lower, the difficult problem that reaches the expectancy effect.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
figure 1 shows a schematic perspective view of a femoral head extraction device according to an embodiment of the present invention holding a femoral head;
fig. 2 shows a front view of the femoral head extraction device of fig. 1 gripping a femoral head;
fig. 3 shows a perspective view of an adjustment structure of the femoral head extraction device of fig. 1;
FIG. 4 shows a top view of the adjustment structure of FIG. 3;
FIG. 5 shows a front view of the adjustment structure of FIG. 3;
FIG. 6 shows a cross-sectional view A-A of the adjustment mechanism of FIG. 5;
fig. 7 illustrates a perspective view of a clamping assembly of the femoral head extraction device of fig. 1;
FIG. 8 shows a front view of the clamping assembly of FIG. 7;
FIG. 9 shows a top view of the clamping assembly of FIG. 7;
FIG. 10 shows a perspective view of a clamp of the clamp assembly of FIG. 7;
FIG. 11 is a perspective view of the pivot portion of the clamp assembly of FIG. 7 shown assembled with a fastener;
FIG. 12 shows a top view of the pivot portion of FIG. 11 assembled with a fastener; and
fig. 13 illustrates a front view of an ejection structure of the femoral head extraction device of fig. 1.
Wherein the figures include the following reference numerals:
10. a clamping assembly; 11. a clamping space; 12. a pivot portion; 121. a connecting recess; 122. a through hole; 13. a clamping member; 131. a clamping portion; 132. a tooth-shaped structure; 133. a connecting portion; 133a, a protrusion; 20. the femoral head; 30. an ejection structure; 31. a puncture section; 32. a threaded segment; 40. adjusting the structure; 41. a housing portion; 411. a via hole; 42. an adjustment part; 421. an internally threaded bore; 422. a mounting recess; 50. a fastener.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problems that the taking-out rate of femoral head taking-out equipment in the prior art is low and the expected effect is difficult to achieve, the application provides femoral head taking-out equipment.
As shown in fig. 1 and 2, a femoral head extraction device includes a clamp assembly 10, an ejection structure 30, and an adjustment structure 40. Wherein the clamping assembly 10 has a clamping space 11 for clamping a femoral head 20, the clamping space 11 being adjustably sized. An ejection structure 30 is movably disposed through the clamping space 11, the ejection structure 30 having a piercing portion 31 that can penetrate the femoral head 20. An adjustment structure 40 is provided on the clamping assembly 10 to adjust the size of the clamping space 11 via the adjustment structure 40 after at least a portion of the piercing portion 31 has penetrated the femoral head 20 to allow the clamping assembly 10 to clamp the femoral head 20 and remove the femoral head 20 from the acetabular socket.
With the technical solution of the present embodiment, during the operation of the femoral head extraction device, the ejection structure 30 is operated, so that the piercing part 31 of the ejection structure 30 penetrates into the femoral head 20, and the femoral head 20 is prevented from moving relative to the ejection structure 30. Then, the worker operates the adjusting structure 40 to adjust the clamping space of the clamping component 10 through the adjusting structure 40, so that the clamping component 10 can clamp the femoral head 20, the worker can take out the femoral head 20 from the acetabular socket through the clamping component 10, and the femoral head 20 can be taken out more easily and conveniently by the worker, and the problem that the expected effect is difficult to achieve due to the fact that the taking-out rate of femoral head taking-out equipment in the prior art is low is solved.
In this embodiment, the clamping assembly 10 over-cradles the femoral head 20.
As shown in fig. 3 to 9, the adjusting structure 40 includes a sleeve portion 41, and the clamping assembly 10 includes a pivot portion 12 and three clamping members 13. The three clamping members 13 are disposed around the pivot portion 12 to form a clamping space 11, each clamping member 13 is pivotally connected to the pivot portion 12, and the sleeving portion 41 is sleeved on the three clamping members 13 to adjust the size of the clamping space 11 by adjusting the sleeving position of the sleeving portion 41 on each clamping member 13. Thus, the size of the clamping space 11 can be adjusted by the worker by adjusting the sleeving position of the sleeving part 41 on each clamping piece 13, so that the clamping of the femoral head 20 by the worker is easier and simpler, and the labor intensity of the worker is reduced.
Specifically, each clamping member 13 can rotate around the pivoting position of the pivoting part 12, so that the positions of two ends of each clamping member 13 can be changed, and the size of the clamping space 11 formed by the three clamping members 13 can be adjusted. After the operator inserts the insertion portion 31 of the ejection structure 30 into the femoral head 20, the position of the sleeve portion 41 on each of the clamping members 13 is adjusted, and the size of the clamping space 11 is adjusted, so that the three clamping members 13 can clamp the femoral head 20. After the three clamps 13 clamp the femoral head 20, the femoral head extraction device is dragged or pulled away from the acetabular socket to extract the femoral head 20 from the acetabular socket.
The number of the clamps 13 is not limited to this. Optionally, the clamps 13 are four or five or six. Thus, the arrangement described above provides a more stable clamping of the femoral head 20 by the clamping assembly 10, which in turn improves the extraction rate of the femoral head extraction device.
As shown in fig. 1 and 2, the sleeve portion 41 is located above the pivot portion 12. Thus, the sleeve portion 41 is sleeved on each of the clamping members 13, and the sleeve portion 41 moves along the extending direction of each of the clamping members 13 to adjust the size of the clamping space 11, so that the clamping assembly 10 can clamp femoral heads 20 with different sizes, thereby expanding the application range of the femoral head extracting device. Specifically, when the femoral head 20 needs to be clamped, the working personnel operates the sleeve part 41 to move towards the pivoting part 12, the clamping space 11 is gradually reduced, and the clamping assembly 10 can clamp the femoral head 20. When the femoral head 20 is removed from the acetabular socket and released, the operator manipulates the sleeve 41 to move away from the pivot 12 to gradually increase the clamping space 11 to effect release of the femoral head 20 by the clamping assembly 10.
It should be noted that the position arrangement of the sleeve portion 41 and the pivot portion 12 is not limited thereto. Optionally, the sleeve portion 41 is located below the pivot portion 12.
As shown in fig. 3, 4, 6 and 13, the ejecting structure 30 is a rod-shaped structure, a part of the rod-shaped structure has a threaded section 32, and the adjusting structure 40 further includes an adjusting part 42. The adjusting portion 42 has an internal threaded hole 421, the rod-shaped structure passes through the pivot portion 12 and is inserted into the adjusting portion 42, so that the threaded section 32 is in threaded connection with the internal threaded hole 421, the adjusting portion 42 further has an installation recess 422, and a part of the sleeved portion 41 extends into the installation recess 422, so that the adjusting portion 42 is rotated to drive the sleeved portion 41 to move towards or away from the pivot portion 12 along the extending direction of the rod-shaped structure, so as to adjust the size of the clamping space 11. Thus, the arrangement makes the position of the sleeve part 41 easier and simpler to adjust by the worker, and reduces the labor intensity of the worker. Meanwhile, the femoral head extraction equipment is simple in structure, easy to process and easy to realize due to the arrangement.
Specifically, after the piercing part 31 of the ejection structure 30 penetrates into the femoral head 20, the worker rotates the adjusting part 42 along the preset direction, so that the adjusting part 42 moves towards the pivot part 12 along the ejection structure 30, and the sleeve part 41 moves towards the pivot part 12 under the driving of the adjusting part 42, so that the clamping space 11 is gradually reduced, and the clamping assembly 10 clamps the femoral head 20, so that the femoral head 20 can be conveniently taken out from the acetabular socket; when the femoral head 20 is taken out of the acetabular socket and released, the worker rotates the adjusting part 42 in the direction opposite to the preset direction, so that the adjusting part 42 moves in the direction away from the pivot part 12 along the ejection structure 30, and the sleeve part 41 moves in the direction away from the pivot part 12 under the driving of the adjusting part 42, so that the clamping space 11 is gradually enlarged, and the femoral head 20 is released by the clamping assembly 10.
In this embodiment, the mounting recess 422 is an annular groove, the sleeve portion 41 is a disc-shaped structure, and a predetermined gap is formed between the sleeve portion 41 and the annular groove, so that when the adjustment portion 42 performs a rotation motion, the sleeve portion 41 slides along each of the clamping members 13, thereby ensuring that the sleeve portion 41 can be used normally, and further improving the operational reliability of the femoral head extraction device. Meanwhile, the structure is simple, the processing and the realization are easy, and the labor intensity of workers is reduced.
The structure of the mounting recess 422 is not limited to this. Optionally, the mounting recess 422 is an arcuate slot. The structure is simple, the processing and the realization are easy, and the labor intensity of workers is reduced.
In the present embodiment, the adjusting portion 42 is a cylindrical structure, and the central axis of the cylindrical structure is disposed coaxially with the central axis of the rod-like structure. Like this, above-mentioned setting makes adjustment portion 42 more steady along the motion of shaft-like structure, can not produce the vibration, and then has promoted the operation stationarity that the femoral head took out equipment, has promoted staff's use and has experienced.
In the present embodiment, the outer surface of the adjusting portion 42 has an anti-slip pattern. Thus, when the worker rotates the adjusting portion 42, the anti-slip pattern can increase the friction force between the hand of the worker and the adjusting portion 42, and play a role in preventing slipping, so that the worker can operate the adjusting portion 42 more easily and conveniently.
Optionally, the sheathing part 41 has a plurality of through holes 411, the plurality of through holes 411 are disposed in one-to-one correspondence with the plurality of clamping members 13, and each clamping member 13 passes through the corresponding through hole 411. As shown in fig. 3 and 4, the sleeve portion 41 has three through holes 411, the three through holes 411 are disposed in one-to-one correspondence with the three clamping members 13, and each clamping member 13 passes through the corresponding through hole 411. Specifically, each through hole 411 is an inclined hole to ensure that the sheathing part 41 can adjust the distance between the three clamping members 13, thereby adjusting the size of the clamping space 11.
As shown in fig. 10, each clamp 13 includes a clamp portion 131 and a connecting portion 133. Wherein the surface of the clamping portion 131 facing the femoral head 20 is provided with a tooth-like structure 132. The connecting portion 133 is connected to the clamping portion 131, the sleeving portion 41 sleeves the connecting portion 133, the connecting portion 133 is a first arc-shaped plate-shaped structure, and an arc center of the first arc-shaped plate-shaped structure is located on a side of the first arc-shaped plate away from the ejecting structure 30. Thus, the above arrangement of the clamping member 13 enables the clamping portion 131 to perform better clamping and clamping on the femoral head 20, thereby improving the clamping effect of the clamping assembly 10. Meanwhile, the structure is simple, the processing and the realization are easy, and the processing cost of the femoral head taking-out equipment is reduced.
As shown in fig. 10, the clamping portion 131 is a second arc-shaped plate-shaped structure, and the arc center of the second arc-shaped plate-shaped structure is located on a side of the second arc-shaped plate-shaped structure facing the ejecting structure 30. Specifically, the tooth-shaped structure 132 is disposed on the surface of the second arc-shaped plate-shaped structure facing the ejection structure 30, which can increase the contact area between the clamping portion 131 and the femoral head 20, and thus increase the clamping force of the clamping assembly 10 on the femoral head 20.
As shown in fig. 1, the connecting portion 133 has a protrusion 133a, the pivot portion 12 has three connecting recesses 121, each protrusion 133a extends into one of the connecting recesses 121, and the fastener 50 passes through the connecting recess 121 and the protrusion 133a to pivotally connect the protrusion 133a with the pivot portion 12. Wherein the pivot portion 12 has a through hole 122 for the ejection structure 30 to pass through, and three connecting recesses 121 are provided at intervals around the circumference of the through hole 122.
As shown in fig. 10 to 12, the distance between each clamp 13 and the rod-like structure is uniform in a reference plane perpendicular to the direction of extension of the rod-like structure. Thus, the clamping force of each clamping piece 13 on the femoral head 20 is consistent, so that the clamping force on the femoral head 20 is more uniform, and the phenomenon that the clamping assembly 10 clamps and damages the femoral head 20 is avoided.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
during use of the femoral head extraction device by a worker, the ejection structure is operated such that the penetrating portion of the ejection structure penetrates into the femoral head to prevent movement of the femoral head relative to the ejection structure. Then, the staff operates the adjustment structure to through the centre gripping space of adjustment structure adjustment centre gripping subassembly, so that the centre gripping subassembly can be with the femoral head centre gripping, so that the staff takes out the femoral head from the acetabulum nest through the centre gripping subassembly, and then makes the staff take out easier, simple and convenient to the femoral head, has solved among the prior art that the extraction rate of femoral head extraction equipment is lower, the difficult problem that reaches the expectancy effect.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A femoral head extraction device, comprising:
a clamping assembly (10) having a clamping space (11) for clamping a femoral head (20), the clamping space (11) being adjustably sized;
an ejection structure (30) movably disposed through the clamping space (11), the ejection structure (30) having a piercing portion (31) that can penetrate into the femoral head (20);
and the adjusting structure (40) is arranged on the clamping component (10), and after at least part of the puncture part (31) penetrates into the femoral head (20), the size of the clamping space (11) is adjusted through the adjusting structure (40), so that the clamping component (10) clamps the femoral head (20), and the femoral head (20) is further taken out of the acetabular socket.
2. The femoral head extraction device according to claim 1, wherein the adjustment structure (40) comprises a socket (41), the clamp assembly (10) comprising:
a pivot (12);
the clamping device comprises a plurality of clamping pieces (13), the clamping pieces (13) are arranged around the pivoting part (12) to form the clamping space (11), each clamping piece (13) is pivotally connected with the pivoting part (12), and the sleeving part (41) is sleeved on the clamping pieces (13) so as to adjust the size of the clamping space (11) by adjusting the sleeving position of the sleeving part (41) on each clamping piece (13).
3. The femoral head extraction device according to claim 2, wherein the sleeve portion (41) is located above the pivot portion (12).
4. The femoral head extraction device according to claim 2, wherein the ejection structure (30) is a rod-like structure, part of the rod-like structure having a threaded section (32), the adjustment structure (40) further comprising:
the adjusting portion (42) is provided with an internal thread hole (421), the rod-shaped structure penetrates through the pivoting portion (12) and penetrates through the adjusting portion (42) to enable the thread section (32) to be in threaded connection with the internal thread hole (421), the adjusting portion (42) is further provided with an installation concave portion (422), and part of the sleeving portion (41) extends into the installation concave portion (422) so that the adjusting portion (42) can be rotated to enable the adjusting portion (42) to drive the sleeving portion (41) to move towards or away from the pivoting portion (12) along the extending direction of the rod-shaped structure to adjust the size of the clamping space (11).
5. The femoral head extraction device according to claim 4 wherein the mounting recess (422) is an annular or arcuate slot.
6. The femoral head extraction device according to claim 4 wherein the adjustment portion (42) is a cylindrical structure having a central axis disposed coaxially with a central axis of the rod-like structure.
7. The femoral head extraction device according to claim 4 wherein the outer surface of the adjustment portion (42) has anti-slip threads.
8. The femoral head extraction device according to claim 2, wherein the sleeve (41) has a plurality of through holes (411), the plurality of through holes (411) being arranged in one-to-one correspondence with the plurality of clips (13), each clip (13) passing through the through hole (411) corresponding thereto.
9. The femoral head extraction device according to claim 2, wherein each of the clamps (13) comprises:
a clamping portion (131), a surface of the clamping portion (131) facing the femoral head (20) being provided with a tooth-like structure (132);
connecting portion (133), with clamping part (131) are connected, cover portion (41) cover is established on connecting portion (133), connecting portion (133) are first arc platelike structure, the arc center of first arc platelike structure is located first arc is kept away from one side of ejecting structure (30).
10. The femoral head extraction device according to claim 9, wherein the clamping portion (131) is a second arcuate plate-like structure having an arc center on a side of the second arcuate plate-like structure facing the ejection structure (30).
11. The femoral head extraction device according to claim 2, characterized in that the ejection structure (30) is a rod-like structure, the distance between each clamp (13) and the rod-like structure being identical in a reference plane perpendicular to the extension direction of the rod-like structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475755.5U CN210019578U (en) | 2019-04-09 | 2019-04-09 | Femoral head extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475755.5U CN210019578U (en) | 2019-04-09 | 2019-04-09 | Femoral head extraction device |
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| CN210019578U true CN210019578U (en) | 2020-02-07 |
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| CN201920475755.5U Active CN210019578U (en) | 2019-04-09 | 2019-04-09 | Femoral head extraction device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938815A (en) * | 2019-04-09 | 2019-06-28 | 北京大学第三医院 | Femoral head extraction device |
| CN113069251A (en) * | 2021-03-26 | 2021-07-06 | 山东大学齐鲁医院(青岛) | Shin bone false body holder |
-
2019
- 2019-04-09 CN CN201920475755.5U patent/CN210019578U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938815A (en) * | 2019-04-09 | 2019-06-28 | 北京大学第三医院 | Femoral head extraction device |
| CN109938815B (en) * | 2019-04-09 | 2023-10-27 | 北京爱康宜诚医疗器材有限公司 | Femoral head extraction device |
| CN113069251A (en) * | 2021-03-26 | 2021-07-06 | 山东大学齐鲁医院(青岛) | Shin bone false body holder |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220801 Address after: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee after: BEIJING AK MEDICAL Co.,Ltd. Address before: 100083 No.3 Hospital of Peking University, 49 Garden Road North, Beijing, Haidian District Patentee before: PEKING UNIVERSITY THIRD Hospital |
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| TR01 | Transfer of patent right |