CN213430522U - Double-needle fixer and orthopedic surgery robot - Google Patents
Double-needle fixer and orthopedic surgery robot Download PDFInfo
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- CN213430522U CN213430522U CN202021572421.9U CN202021572421U CN213430522U CN 213430522 U CN213430522 U CN 213430522U CN 202021572421 U CN202021572421 U CN 202021572421U CN 213430522 U CN213430522 U CN 213430522U
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Abstract
The application relates to a double-needle fixer and an orthopedic surgery robot. The double-needle holder includes: the inner part of the shell is a cavity with an opening on one side surface, and the shell is provided with a first bone pinhole and a second bone pinhole; the sliding block is arranged in the cavity of the shell in a sliding mode, a third bone needle hole and a fourth bone needle hole are formed in the sliding block, the third bone needle hole corresponds to the first bone needle hole, and the fourth bone needle hole corresponds to the second bone needle hole; the locking piece locks the sliding block under the condition that the first bone needle hole is matched with the third bone needle hole to clamp the first bone needle, and the second bone needle hole is matched with the fourth bone needle hole to clamp the second bone needle; and one end of the connecting rod is connected with the shell, and the other end of the connecting rod is used for installing the optical tracker. The double-needle fixer realizes the connection of the spicule and the optical tracker, and has simple structure and convenient operation.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a double-needle fixator and an orthopedic surgery robot.
Background
At present, in the bone surgery, the application of the bone surgery robot is more and more extensive. When the orthopaedic surgery robot is used, an optical tracker needs to be fixed on a patient so that the orthopaedic surgery robot can identify the position of a surgical site in real time. The optical tracker is typically secured to the patient by a bone pin. However, the existing device for connecting the optical tracker and the spicule has a complex structure and is complex to operate.
SUMMERY OF THE UTILITY MODEL
Based on this, this application provides a double needle fixer and orthopaedic surgery robot, through two spicules of casing and slider cooperation chucking, utilizes connecting rod installation optical tracker, convenient operation.
One embodiment of the present application provides a double needle holder comprising: the bone grafting device comprises a shell, a first bone pinhole and a second bone pinhole, wherein the interior of the shell is a cavity with an opening on one side surface; the sliding block is arranged in the cavity of the shell in a sliding mode, a third bone needle hole and a fourth bone needle hole are formed in the sliding block, the third bone needle hole is correspondingly communicated with the first bone needle hole, and the fourth bone needle hole is correspondingly communicated with the second bone needle hole; the locking piece locks the sliding block under the condition that the first bone needle hole is matched with the third bone needle hole to clamp the first bone needle, and the second bone needle hole is matched with the fourth bone needle hole to clamp the second bone needle; and one end of the connecting rod is connected with the shell, and the other end of the connecting rod is used for installing the optical tracker.
According to some embodiments of the present application, a top surface of the housing is provided with a first guide groove communicating with the cavity, the first guide groove extending parallel to a sliding direction of the slider; the first pin is connected with the top surface of the sliding block, and one end of the first pin is located in the first guide groove.
According to some embodiments of the present application, a bottom surface of the housing is provided with a second guide groove communicating with the cavity, the second guide groove extending parallel to a sliding direction of the slider; and the second pin is connected with the bottom surface of the sliding block, and one end of the second pin is positioned in the second guide groove.
According to some embodiments of the present application, the third bone pin hole and the fourth bone pin hole are both oblong holes.
According to some embodiments of the present application, a side surface of the housing is provided with a through hole, and the side surface where the through hole is located is opposite to the opening of the cavity; one side surface of the sliding block is provided with a threaded hole corresponding to the through hole; the retaining member includes handheld portion and double-screw bolt, the one end of double-screw bolt is connected a terminal surface of handheld portion, the double-screw bolt is kept away from set up the external screw thread on the outer wall of the one end of handheld portion, the double-screw bolt with the junction of handheld portion radially extends out the flange, the diameter of flange is greater than the diameter of through-hole, the double-screw bolt passes the through-hole with the screw hole of slider is connected.
According to some embodiments of the present application, a first protrusion is disposed on a side surface of the housing where the through hole is located, the cavity of the housing extends into the first protrusion, and the through hole is located on the first protrusion; and a second bulge corresponding to the first bulge is arranged on the sliding block, and the threaded hole is positioned on the second bulge.
According to some embodiments of the present application, a weight-reduction groove is provided on the slider.
According to some embodiments of the application, a lightening hole is provided on the slider.
According to some embodiments of the application, the connecting rod extends in a step-like manner.
One embodiment of the present application provides an orthopedic surgical robot comprising: a first bone pin and a second bone pin; the double-needle fixer comprises a first bone needle hole, a second bone needle hole, a third bone needle hole, a fourth bone needle hole and a fourth bone needle hole, wherein the first bone needle hole and the third bone needle hole are matched and clamped with each other to clamp the first bone needle; and the optical tracker is connected with the connecting rod.
According to the double-needle fixer, the two bone needle holes in the shell are matched with the two bone needle holes in the sliding block, so that the two bone needles are clamped, and the sliding block is locked through the locking piece, so that the clamping of the bone needles is prevented from loosening; the optical tracker is installed through the connecting rod; the double-needle fixer has simple structure and convenient operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.
FIG. 1 is a schematic view of a dual needle holder according to an embodiment of the present application;
FIG. 2 is an exploded view of a dual needle holder of an embodiment of the present application;
FIG. 3 is a first schematic view of a housing according to an embodiment of the present application;
FIG. 4 is a second schematic view of the housing of the embodiment of the present application;
FIG. 5 is a schematic view of a slider of an embodiment of the present application;
FIG. 6 is a top view of a slider of an embodiment of the present application;
FIG. 7 is a schematic view of a connecting rod of an embodiment of the present application;
FIG. 8 is a schematic view of a retaining member according to an embodiment of the present application;
FIG. 9 is a schematic view of another slider of an embodiment of the present application;
fig. 10 is a schematic view of an orthopaedic surgical robot according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
Example 1
As shown in fig. 1 and 2, embodiments of the present application provide a dual needle holder 100. The double needle holder 100 includes: the device comprises a shell 1, a sliding block 2, a locking piece 3 and a connecting rod 4. The fixation of the optical tracker on the patient is achieved by connecting the spicules and the optical tracker by means of a double-needle holder 100.
As shown in fig. 3 and 4, the housing 1 is a main body of the double needle holder 100. The interior of the housing 1 is a cavity 11. One side of the cavity 11 is open, forming an opening 14. The shell 1 is provided with a first bone needle hole 12 and a second bone needle hole 13 which penetrate through the shell 1 from top to bottom. The axis of the first bone needle hole 12 and the axis of the second bone needle hole 13 are arranged in parallel. The first bone needle hole 12 and the second bone needle hole 13 are communicated with the cavity 11. Optionally, the first bone needle aperture 12 is near the first end 1a of the housing 1 and the second bone needle aperture 13 is near the second end 1b of the housing 1.
As shown in fig. 5 and 6, the slider 2 is provided with a third bone needle hole 21 and a fourth bone needle hole 22 penetrating the slider 2 from top to bottom. The slider 2 is fitted into the cavity 11 of the housing 1 through the opening 14, and the slider 2 is slidable in the cavity 11. In the present embodiment, the sliding direction of the slider 2 is close to or away from the side of the housing 1 opposite to the opening 14, but the present application is not limited thereto. The position of third bone pinhole 21 corresponds first bone pinhole 12, and the position of fourth bone pinhole 22 corresponds second bone pinhole 13, and the slip of slider 2 can make first bone pinhole 12 and the first bone pinhole of third bone pinhole 21 cooperation chucking, and second bone pinhole 13 and the cooperation chucking second bone pinhole of fourth bone pinhole 22.
The locking piece 3 is used for locking the sliding block 2. When the double-needle fixer 100 is required to be connected with spicules, under the condition that the first spicule hole 12 is matched with the third spicule hole 21 to clamp the first spicule, and the second spicule hole 13 is matched with the fourth spicule hole 22 to clamp the second spicule, the slide block 2 is locked through the locking part 3, so that the double-needle fixer 100 is firmly fixed on the spicules. When the double-needle fixer 100 needs to be separated from the spicule, the locking piece 3 is unlocked, and the double-needle fixer 100 can be taken down from the spicule.
As shown in fig. 7, one end of the connecting rod 4 is connected to the housing 1, and the other end is used for mounting the optical tracker, so that the optical tracker can be firmly connected to the double-needle holder 100. In this embodiment, the end face of the second end 1b of the housing 1 is provided with a connecting rod mounting hole 19, the connecting end of the connecting rod 4 connected to the housing 1 is provided with a joint 41 matched with the connecting rod mounting hole 19, the joint 41 penetrates into the connecting rod mounting hole 19, and the connecting rod mounting hole is welded to realize the connection between the housing 1 and the connecting rod 4. In another alternative, the housing 1 and the connecting rod 4 may be integrally formed. The end of the connecting rod 4 where the optical tracker is mounted is provided with a joint 42 that mates with the optical tracker.
The utility model provides a two needle fixer 100 slides in casing 1 through slider 2, and first bone pinhole 12 cooperates and second bone pinhole 13 and fourth bone pinhole 22 cooperation chucking bone needle with third bone pinhole 21, and the bone needle is fixed on the patient health, and two needle fixer 100 are connected the optical tracker, realize optical tracker and patient's fixed. The disassembly and assembly of the double-needle fixer 100 and the spicules can be realized by operating the locking piece, the operation is convenient, and the bone surgery can be performed conveniently.
According to an alternative solution of the present application, the top surface of the housing 1 is provided with a first guide groove 15 communicating with the cavity 11, the first guide groove 15 extending parallel to the sliding direction of the slider 2. In this embodiment, the first guide slot 15 is disposed at a middle position of the top surface of the housing 1, but the present application is not limited thereto.
Set up first pin 23 on the top surface of slider 2, the one end of first pin 23 is located first guide way 15, and when slider 2 slided, the cooperation of first pin 23 and first guide way 15 played the effect of direction to slider 2, and first pin 23 can restrict slider 2 and roll off cavity 11 completely simultaneously. When assembled, the first pin 23 passes through the first guide slot 15 and is connected with the slider 2.
According to an alternative solution of the present application, the bottom surface of the housing 1 is provided with a second guide groove 16 communicating with the cavity 11, the second guide groove 16 extending parallel to the sliding direction of the slider 2. In the present embodiment, the second guide groove 16 is provided directly below the first guide groove 15.
Set up second pin 24 on the bottom surface of slider 2, the one end of second pin 24 is located second guide way 16, and when slider 2 slided, second pin 24 further led for slider 2 with the cooperation of second guide way 16, made slider 2's slip more steady. When assembled, the second pin 24 is connected to the slider 2 through the second guide groove 16.
According to an alternative technical scheme of the application, the third bone needle hole 21 and the fourth bone needle hole 22 on the sliding block 2 are both oblong holes. The bone needle hole in the shape of the long round hole on the sliding block 2 is matched with the bone needle hole on the shell 1, so that the double-needle fixer 100 and the bone needle can be assembled and disassembled more conveniently.
As shown in fig. 8, according to an alternative embodiment of the present invention, a through hole 17 is provided at one side of the housing 1, and the side of the through hole 17 is opposite to the opening 14 of the cavity. One side surface of the slide block 2 is provided with a threaded hole 25 corresponding to the through hole 17. The retaining member 3 comprises a hand-held portion 31 and a stud 32. The shape of the hand-held portion 31 is to facilitate grasping operation by a doctor. One end of the stud 32 is connected with one end face of the handheld part 31, and the outer wall of one end of the stud 32 far away from the handheld part 31 is provided with an external thread 321. The connection between the stud 32 and the hand-held portion 31 extends radially beyond a flange 33, the flange 33 having a diameter greater than the diameter of the through-hole 15. The stud 32 passes through the through hole 17, and the external thread 321 is connected with the threaded hole 25 of the sliding block. The flange 33 props against the side wall of the shell where the through hole 15 is located, the doctor rotates the handheld part 31, the locking part 3 drives the sliding block 2 to slide in the cavity 1, and the bone needle is clamped or loosened. Other forms of locking members, such as cam-type locking mechanisms, may be selected as desired.
Optionally, a second flange 322 is disposed on the stud 32 between the external thread 321 and the flange 33, and after the flange 33 abuts against the sidewall of the housing where the through hole 15 is located, the second flange 322 is located in the through hole 17, and the second flange 322 is in clearance fit with the through hole 17, so as to avoid unnecessary vibration when the locking member 3 rotates.
According to an alternative solution of the present application, the housing 1 is provided with a first protrusion 18, and the first protrusion 18 is located on the side of the housing where the through hole 17 is located. In this embodiment, the first protrusion 18 is located at the middle of the side surface thereof. The cavity 11 of the housing extends into the first protrusion 18, i.e. the interior of the first protrusion 18 is hollow, and the through hole 17 is located on the first protrusion 18. The slider 2 is provided with a second projection 26 corresponding to the first projection 18, and the threaded hole 25 is located on the second projection 26. The first protrusion 18 and the second protrusion 26 are provided to facilitate the optimization of the volume of the housing 1 and the slider 2 on the premise of satisfying the sliding stroke of the slider 2.
In an alternative embodiment, weight-reduction grooves 27 are provided on the slide 2. In this embodiment, two weight-reducing grooves 27 are respectively formed in the top surface and the bottom surface of the slider 2, so that the weight of the slider 2 can be effectively optimized. The number of weight-reduction grooves 27 can be set as desired.
As shown in fig. 9, in another alternative, lightening holes 28 are provided in the slider 2. The lightening holes 28 also serve to optimize the weight of the slider 2. The positions and the number of the lightening holes 28 can be set according to requirements.
According to an optional technical scheme of the application, the connecting rod 4 extends in a step shape, and when joint surgery is performed, soft tissues near the joint can be avoided by the step-shaped connecting rod 4.
Example 2
As shown in fig. 10, embodiments of the present application provide an orthopedic surgical robot. The orthopaedic surgical robot includes the double needle holder 100, the first bone needle 201, the second bone needle 202, and the optical tracker 300 as described above.
When the optical tracker 300 needs to be fixed to a patient, the first bone needle 201 is fixed to a bone of the patient, the two-needle fixer 100 is sleeved on the first bone needle 201, the first bone needle 201 penetrates into the first bone needle hole 12 and the third bone needle hole 21, a doctor holds the two-needle fixer 100 by hand to penetrate the second bone needle 202 into the second bone needle hole 13 and the fourth bone needle hole 22, the second bone needle 202 is fixed to the bone of the patient, the locking piece 3 is screwed up, the first bone needle hole 12 is matched with the third bone needle hole 21 to clamp the first bone needle 201, and the second bone needle hole 13 is matched with the fourth bone needle hole 22 to clamp the second bone needle 202. Finally, the optical tracker 300 is mounted on the tracker attaching rod 4.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only intended to facilitate the understanding of the methods and their core concepts of the present application. Meanwhile, a person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (10)
1. A dual needle holder, comprising:
the bone grafting device comprises a shell, a first bone pinhole and a second bone pinhole, wherein the interior of the shell is a cavity with an opening on one side surface;
the sliding block is arranged in the cavity of the shell in a sliding mode, a third bone needle hole and a fourth bone needle hole are formed in the sliding block, the third bone needle hole is correspondingly communicated with the first bone needle hole, and the fourth bone needle hole is correspondingly communicated with the second bone needle hole;
the locking piece locks the sliding block under the condition that the first bone needle hole is matched with the third bone needle hole to clamp the first bone needle, and the second bone needle hole is matched with the fourth bone needle hole to clamp the second bone needle;
and one end of the connecting rod is connected with the shell, and the other end of the connecting rod is used for installing the optical tracker.
2. The double-needle holder according to claim 1, wherein a first guide groove communicating with the cavity is provided in a top surface of the housing, the first guide groove extending parallel to a sliding direction of the slider; the first pin is connected with the top surface of the sliding block, and one end of the first pin is located in the first guide groove.
3. The double-needle holder according to claim 2, wherein a second guide groove communicating with the cavity is provided in a bottom surface of the housing, the second guide groove extending parallel to a sliding direction of the slider; and the second pin is connected with the bottom surface of the sliding block, and one end of the second pin is positioned in the second guide groove.
4. The double-needle holder according to claim 1, wherein the third and fourth bone needle holes are oblong holes.
5. The double-needle holder according to claim 1, wherein a side surface of the housing is provided with a through hole, and the side surface of the through hole is opposite to the opening of the cavity;
one side surface of the sliding block is provided with a threaded hole corresponding to the through hole;
the retaining member includes handheld portion and double-screw bolt, the one end of double-screw bolt is connected a terminal surface of handheld portion, the double-screw bolt is kept away from set up the external screw thread on the outer wall of the one end of handheld portion, the double-screw bolt with the junction of handheld portion radially extends out the flange, the diameter of flange is greater than the diameter of through-hole, the double-screw bolt passes the through-hole with the screw hole of slider is connected.
6. The double-needle holder according to claim 5, wherein a first protrusion is provided on a side surface of the housing where the through hole is located, the cavity of the housing extends into the first protrusion, and the through hole is located on the first protrusion;
and a second bulge corresponding to the first bulge is arranged on the sliding block, and the threaded hole is positioned on the second bulge.
7. The double needle holder as claimed in claim 1, wherein the slider is provided with a weight-reducing groove.
8. The double needle holder as claimed in claim 1, wherein the slider is provided with a lightening hole.
9. The double needle holder according to claim 1, wherein the connecting rod extends in a stepped shape.
10. An orthopedic surgical robot, comprising:
a first bone pin and a second bone pin;
the double-needle fixator of any one of claims 1-9 wherein the first bone needle hole and the third bone needle hole cooperate to clamp the first bone needle, and the second bone needle hole and the fourth bone needle hole cooperate to clamp the second bone needle;
and the optical tracker is connected with the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021572421.9U CN213430522U (en) | 2020-07-31 | 2020-07-31 | Double-needle fixer and orthopedic surgery robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021572421.9U CN213430522U (en) | 2020-07-31 | 2020-07-31 | Double-needle fixer and orthopedic surgery robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213430522U true CN213430522U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021572421.9U Active CN213430522U (en) | 2020-07-31 | 2020-07-31 | Double-needle fixer and orthopedic surgery robot |
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| Country | Link |
|---|---|
| CN (1) | CN213430522U (en) |
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- 2020-07-31 CN CN202021572421.9U patent/CN213430522U/en active Active
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