CN219940786U

CN219940786U - Assembled support and tracker structure

Info

Publication number: CN219940786U
Application number: CN202321007214.2U
Authority: CN
Inventors: 张胜锋
Original assignee: Tinavi Medical Technologies Co Ltd
Current assignee: Tinavi Medical Technologies Co Ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-11-03
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to the technical field of surgical navigation tools, and provides an assembled bracket and a tracker structure, which comprises the following components: the bracket body is provided with a connecting cavity which is used for accommodating an external mounting column; the locking component is movably arranged on the bracket body and can protrude out of the inner wall surface of the connecting cavity; the wrench piece is hinged on the bracket body and comprises a cam, and the cam is in abutting connection with the locking assembly; the locking assembly is moved in a direction toward or away from the center of the connection chamber by rotation of the cam. The utility model has the advantages of no need of using additional disassembly tools for disassembly and assembly, high disassembly and assembly efficiency and simple disassembly and assembly process.

Description

Assembled support and tracker structure

Technical Field

The utility model relates to the technical field of surgical navigation tools, in particular to an assembled bracket and a tracker structure.

Background

In the surgical navigation process, the tracker is fixed on a patient or a surgical tool, the position of the tracker is identified through an external navigation camera, so that the position of the patient or the position of the surgical tool are positioned, the tracker is usually composed of a tracking sphere and a bracket, the tracking sphere is fixedly connected to the bracket, and the bracket is fixedly connected to the patient or the surgical tool, so that the surgical navigation is performed.

In the existing tracker mounting mode, a screw fastening or threaded ejector rod matching positioning mechanism is mainly used, and a connecting operation tool is taken as an example, and a bracket is connected with an external operation tool through screws or is screwed against the external operation tool so as to realize the fixed connection of the tracker and the operation tool. When the screw is dismounted, a special tool is needed to screw the screw, the dismounting efficiency is low, and the process is complex.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The utility model aims to provide an assembled bracket and a tracker structure, which have the advantages of no need of using an additional disassembly and assembly tool for disassembly and assembly, high disassembly and assembly efficiency and simple disassembly and assembly process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in one aspect, the present utility model provides a fabricated bracket comprising: the bracket body is provided with a connecting cavity which is used for accommodating an external mounting column;

the locking component is movably arranged on the bracket body and can protrude out of the inner wall surface of the connecting cavity;

the wrench piece is hinged on the bracket body and comprises a cam, and the cam is in abutting connection with the locking assembly;

the locking assembly is moved in a direction toward or away from the center of the connection chamber by rotation of the cam.

In one embodiment, the bracket body is provided with a mounting hole which is communicated with the connecting cavity;

the locking assembly includes: and the top pressing part is movably arranged in the mounting hole and moves towards or away from the center of the connecting cavity by driving of the cam.

In one embodiment, a reset elastic piece is arranged between the jacking part and the bracket body, and one end of the reset elastic piece is connected with the jacking part, and the other end of the reset elastic piece is connected with the bracket body.

In one embodiment, the top pressing part comprises a pressing table which is movably embedded in the mounting hole;

the supporting side plate is arranged on one side of the pressing table, which is away from the connecting cavity, and the elastic piece connecting hole is formed in one side of the supporting side plate, which is positioned on the pressing table, and the reset elastic piece is connected in the elastic piece connecting hole.

In one embodiment, the elastic member connection holes are provided in plurality, and the plurality of elastic member connection holes are provided around the platen;

the reset elastic pieces are provided with a plurality of elastic piece connecting holes and correspond to the elastic piece connecting holes;

the reset elastic piece is a reset spring.

In one embodiment, the locking assembly further comprises: the transmission rod is movably arranged at one end of the jacking part, which is away from the connecting cavity, and is abutted against the cam;

the force application elastic piece is positioned between the transmission rod and the jacking part;

the force application elastic piece is a disc spring, and the disc spring is sleeved on the transmission rod.

In one embodiment, the surface of the top pressure part facing the connection cavity is provided with a V-shaped groove for clamping an external mounting post.

In one embodiment, the wrench member further comprises: one end of the spanner rod is fixedly connected with the cam, and the other end extends out of the bracket body;

the spanner bar is S-shaped.

In one embodiment, one side of the connecting cavity is provided with an opening;

the inner wall of one side of the opening of the connecting cavity opposite to the jacking part is convexly provided with a clamping table, and an upper V-shaped positioning groove is formed on one side of the clamping table.

In another aspect, the present utility model also provides a tracker structure, including a fabricated bracket as described above, and a tracking sphere;

the support body includes: the connecting seat is provided with a connecting cavity;

the supporting rod is connected to one end of the connecting seat, which is away from the locking component;

and the ball frame is connected to one end of the supporting rod, which is away from the connecting seat, and the tracking ball is arranged on the ball frame.

The assembled bracket and the tracker structure have the advantages that: according to the technical scheme, the connecting cavity is adopted to contain the mounting column of the external surgical tool, the cam is driven to rotate through the wrenching wrench piece, the rotating cam drives the locking assembly to move along the direction towards or away from the center of the connecting cavity, after the locking assembly moves into the connecting cavity, the mounting column of the surgical tool is pressed, so that the mounting column of the surgical tool is fixed in the connecting cavity, and the locking assembly can be loosened through the rotation of the cam by the reverse wrenching wrench piece, so that the locking assembly is loosened and positioned in the mounting column of the connecting cavity. Therefore, the principle that the cam is used for carrying out the ejector rod is adopted to carry out the rapid locking and loosening of the surgical tool, thereby realizing the rapid installation and positioning of the tracker without screws or threads, and having the advantages of no need of using an additional dismounting tool for dismounting, high dismounting efficiency and simple dismounting process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an assembled bracket according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a fabricated bracket according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a fabricated bracket according to an embodiment of the present utility model in a released state;

FIG. 4 is a cross-sectional view of a fabricated bracket according to an embodiment of the present utility model in a compressed state;

fig. 5 is a sectional view of a fabricated bracket according to an embodiment of the present utility model after disassembly.

Wherein, each reference sign in the figure:

100. a mounting column; 200. a bracket body; 210. a connecting seat; 211. a connecting cavity; 212. an opening; 213. a clamping table; 214. v-shaped positioning groove; 215. a mounting hole; 216. a blind hole; 220. a support rod; 230. a ball rack; 300. a locking assembly; 310. a pressing part; 305. a V-shaped groove; 311. a pressing table; 312. supporting the side plates; 313. an elastic member connection hole; 320. a transmission rod; 321. a rod body; 322. a club head; 330. a force application elastic member; 340. a return elastic member; 400. a wrench member; 410. a cam; 411. a disc body; 412. a protruding end; 420. a wrench rod; 430. a rotating shaft.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

Example 1

As shown in fig. 1, 2 and 3, the fabricated bracket of the present embodiment mainly includes: bracket body 200, locking assembly 300, and wrench 400. For convenience of structural description, the bracket body 200 in this embodiment adopts an up-down structure, a connection cavity 211 is provided at a lower portion of the bracket body 200, an upper portion is used for connecting a tracking sphere, the connection cavity 211 may be a through hole penetrating in an axial direction perpendicular to an up-down direction, the connection cavity 211 is used for accommodating an external mounting column 100, the mounting column 100 may be a mounting column 100 of a surgical tool, and the mounting column 100 is inserted into the connection cavity 211 along an axial direction thereof. The locking component 300 is movably arranged on the bracket body 200 and can protrude out of the inner wall surface of the connecting cavity 211; the locking assembly 300 may be movable in an up-down direction, which is disposed below the connection cavity 211, and is pushed upward to be inserted into the connection cavity 211 and moved downward to be retracted into the holder body 200 to be separated from the connection cavity 211. The wrench 400 is hinged on the bracket body 200, and the wrench 400 includes a cam 410, the cam 410 abutting the connection lock assembly 300; the user pulls the wrench 400 to rotate the cam 410 around the hinge position, the cam 410 has a protruding end 412 and a disc body 411, the outer wall peak of the protruding end 412 is long from the hinge position (center of the disc body 411), and the outer wall peak of the disc body 411 is a certain distance from the hinge position (center of the disc body 411) and shorter than the protruding end 412, which is a basic structure of the cam 410, not described in detail. The locking assembly 300 is moved in a direction toward or away from the center of the connection chamber 211 by the rotation of the cam 410. When moving upward toward the center of the connection cavity 211, the locking assembly 300 protrudes into the connection cavity 211 to press the outer mounting post 100; when moved downward and away from the center of the connection cavity 211, the locking assembly 300 is retracted into the bracket body 200 to release the outer mounting post 100.

As shown in fig. 2, 3 and 4, the working principle of the fabricated bracket provided in this embodiment is as follows: when the mounting post 100 of an external surgical tool is inserted into the connection cavity 211 and the mounting post 100 is required to be locked, the cam 410 is driven to rotate by pulling the wrench 400, for example, the cam 410 rotates counterclockwise, so that the protruding end 412 of the cam 410 rotates slowly to push the locking assembly 300 upwards, thereby moving the locking assembly 300 upwards, the locking assembly 300 protrudes slowly from the inner wall of the connection cavity 211 to abut against the mounting post 100, and the mounting post 100 is pressed against the inner wall of the connection cavity 211. When the mounting post 100 needs to be unlocked, the reverse-pulling wrench 400 drives the cam 410 to rotate clockwise, so that the protruding end 412 of the cam 410 slowly rotates downwards and the disc 411 slowly abuts against the locking assembly 300, the protruding end 412 of the cam 410 is separated from the locking assembly 300, and the locking assembly 300 faces downwards and leaves the inner wall of the connecting cavity 211, so that the locking assembly 300 releases the mounting post 100 located in the connecting cavity 211. Therefore, the principle of the cam 410 for carrying out the ejector rod is adopted, so that the quick locking and releasing of the surgical tool are realized, the tracker is quickly installed and positioned without screws or threads, and the quick locking and releasing device has the advantages of no need of using an additional dismounting tool for dismounting, high dismounting efficiency and simple dismounting process.

Further, as shown in fig. 2, 3 and 4, the wrench 400 in this embodiment further includes: the wrench lever 420, one end of the wrench lever 420 is fixedly connected with the cam 410, and the other end extends out of the bracket body 200, and the wrench lever 420 is in an S shape. The lower end of the "S" -shaped wrench rod 420 is fixed with the cam 410, the rotation center of the cam 410 is connected to the bracket body 200 through the rotation shaft 430 and is located at the lower portion of the connection cavity 211, the "S" -shaped wrench rod 420 extends out of the bracket body 200 and then bends upward, so that a user can conveniently press the wrench rod 420 downward, the outer end of the wrench rod 420 is long, a lever is formed between the cam 410 and the wrench rod 420 by taking the rotation shaft 430 as a fulcrum, the locking assembly 300 is lifted up through the lever principle, the effect of saving power is achieved, and the user can apply a small force to push the locking assembly 300 to apply a large pressure to the mounting column, so that the mounting column 100 is ensured to be fixedly mounted in the connection cavity 211.

Further, as shown in fig. 2 and 5, the bracket body 200 in this embodiment is provided with a mounting hole 215, and the mounting hole 215 penetrates the bracket body 200 in the up-down direction and is communicated with the connection cavity 211, and the mounting hole 215 is located below the connection cavity 211. The structure of the locking assembly 300 may take a variety of forms, such as: the locking assembly 300 specifically includes a pressing portion 310, and the pressing portion 310 is movably disposed in the mounting hole 215 and is moved toward or away from the center of the connection cavity 211 by driving of a cam 410. The pressing part 310 is fitted into the mounting hole 215 and moves in the up-down direction by the driving of the cam 410, and the mounting column 100 in the connection chamber 211 is pressed by the movement of the pressing part 310.

Further, as shown in fig. 3, 4 and 5, a return elastic member 340 is disposed between the pressing portion 310 and the bracket body 200 in the present embodiment, and the return elastic member 340 may be a return spring. One end of the return elastic member 340 is connected to the pressing portion 310, and the other end is connected to the bracket body 200. When the pressing portion 310 is pushed upward, the return spring is compressed to generate a repulsive force, and when the protruding end 412 of the cam 410 rotates to be separated from the pressing portion 310, the pressing portion 310 is pushed downward by the repulsive force of the return spring, so that the downward movement of the pressing portion 310 is powered, and the pressing portion 310 is moved below the inner wall surface of the connection chamber 211. The reset elastic member 340 is provided to power the downward movement of the locking assembly 300, so that the released locking assembly 300 can be rapidly moved downward, and the releasing process of the mounting column is smoother.

Further, as shown in fig. 3, 4 and 5, to facilitate the installation of the return elastic member 340, the pressing portion 310 in this embodiment includes a pressing table 311 and a supporting side plate 312, and the diameter of the supporting side plate 312 is larger than that of the pressing table 311. The pressing table 311 is movably embedded in the mounting hole 215, the supporting side plate 312 is arranged at the lower end of the pressing table 311, the upper surface of the supporting side plate 312 is provided with an elastic piece connecting hole 313, and the resetting elastic piece 340 is connected in the elastic piece connecting hole 313. The corresponding inside at support body 200 also is provided with along the blind hole 216 of seting up and down direction, and the one end of reset elastic member 340 supports and leans on in blind hole 216, and the other end supports and leans on in elastic member connecting hole 313, through spacing the both ends of reset elastic member 340 to make the installation of reset elastic member 340 more convenient.

Further, a plurality of elastic member connection holes 313 are provided in the present embodiment, and a plurality of elastic member connection holes 313 are provided around the platen 311; the corresponding restoring elastic member 340 is provided in plurality and corresponds to the plurality of elastic member connection holes 313 one by one. For example, 2 or 4 elastic member connection holes 313 may be provided, and the force applied to the pressing portion 310 is more uniform in a symmetrical manner, so that the pressing portion 310 moves up and down more smoothly and stably.

Further, as shown in fig. 3, 4 and 5, the locking assembly 300 of the present embodiment further includes: the transmission rod 320 and the force application elastic member 330. The transmission rod 320 is movably arranged below the back of the pressing part 310 and is used for abutting against the cam 410; the force application elastic member 330 is located between the transmission rod 320 and the pressing portion 310. In a specific structure, the transmission rod 320 has a rod body 321 and a rod head 322, the diameter of the rod head 322 is larger than that of the rod body 321, the rod body 321 is movably embedded into the top pressing portion 310, the force application elastic member 330 is sleeved on the rod body 321, and the upper end abuts against the top pressing portion 310 and the lower end abuts against the rod head 322. The transmission rod 320 is pushed upwards by the cam 410, the top pressing part 310 pushes the mounting column 100 upwards under the action of the transmission rod 320 and the force application elastic part 330 until the mounting column 100 is pushed to the upper inner wall of the connecting cavity 211, after the mounting column 100 is completely tangent to the upper inner wall of the connecting cavity 211, the force application elastic part 330 deforms until the upper surface of the top pressing part 310 is completely tangent to the mounting column 100 due to the continuous pushing action of the cam 410, and the elastic force generated by the deformation of the force application elastic part 330 enables the upper surface of the top pressing part 310 to keep a certain pressure with the mounting column 100, so that the upper surface of the top pressing part 310 and the inner wall of the connecting cavity 211 can generate friction resistance for locking the mounting column 100.

Further, the force application elastic member 330 in this embodiment may be a disc spring, and the disc spring is sleeved on the transmission rod 320. The disc spring is convenient to install, small in occupied thickness and suitable for being assembled on the transmission rod 320. The frictional resistance generated during the above-mentioned pressing process can be adjusted by controlling the number or deformation amount of the disc springs.

Further, as shown in fig. 2, 3 and 4, the surface of the top pressing portion 310 facing the connection cavity 211 is provided with a V-shaped groove 305, and the V-shaped groove 305 is used for clamping the external mounting post 100. In the process of jacking the mounting column 100 by the jacking part 310, the mounting column 100 can be embedded in the V-shaped groove 305, and the disc spring is deformed in the jacking process so that the V-shaped groove 305 is completely tangent to the mounting column 100 and a certain pressure can be maintained between the V-shaped groove 305 and the mounting column 100. Therefore, the V-shaped groove 305 not only can center the mounting post 100 during the fixing process, but also is not easy to loosen after limiting, so that the fixing of the top pressing part 310 and the connecting cavity 211 to the mounting post 100 is firmer.

Further, as shown in fig. 2, 3 and 4, an opening 212 is formed at one side of the connecting cavity 211 in the present embodiment, so that the connecting cavity 211 forms a C shape; therefore, the insertion of the mounting column can be facilitated, and the rapid assembly and disassembly can be realized conveniently.

Further, as shown in fig. 2, 3 and 4, a locking stand 213 is provided on an inner wall of the opening 212 of the connection chamber 211 on a side opposite to the pressing portion 310. The clamping table 213 forms a bulge at the upper position of the opening 212, and a stop position can be formed at the C-shaped opening position through the bulge, so that the mounting column is more stably fixed in the connecting cavity 211.

Further, as shown in fig. 2, 3 and 4, an upper V-shaped positioning groove 214 is formed between the clamping stage 213 and the inner wall of the connection chamber 211. The top pressing part 310 pushes the mounting column 100 upwards under the action of the transmission rod 320 and the force application elastic piece 330 until the mounting column 100 is pushed into the upper V-shaped positioning groove 214, limiting connection of the mounting column can be achieved through the upper V-shaped positioning groove 214, and the mounting column is matched with the V-shaped groove 305 on the surface of the top pressing part 310, so that the mounting column cannot loosen in the connecting cavity 211.

Example two

As shown in fig. 1 and 2, the present utility model proposes a tracker structure, which includes a fabricated bracket according to the first embodiment, and a tracking sphere (not shown in the drawings). The tracking sphere is fixedly connected to the assembled bracket.

The bracket body 200 in this embodiment specifically includes: a connection base 210, a support bar 220, and a ball frame 230. The connecting cavity 211 is arranged on the connecting seat 210; the supporting rod 220 is connected above the connection base 210, the ball frame 230 is fixed at the upper end of the supporting rod 220, and the tracking ball is mounted on the ball frame 230.

The tracker structure can realize the rapid installation and disassembly of the tracker and the surgical tool, simplify the tracker structure, increase the reliability and reduce the manufacturing cost.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A fabricated bracket, comprising:

the bracket comprises a bracket body, wherein a connecting cavity is arranged on the bracket body and used for accommodating an external mounting column;

the wrench piece is hinged to the bracket body and comprises a cam, and the cam is in abutting connection with the locking assembly;

2. The fabricated bracket of claim 1, wherein the bracket body is provided with a mounting hole, and the mounting hole is communicated with the connecting cavity;

3. The fabricated bracket of claim 2, wherein a return elastic member is disposed between the top pressing portion and the bracket body, and one end of the return elastic member is connected to the top pressing portion, and the other end is connected to the bracket body.

4. The fabricated bracket of claim 3, wherein the top pressure portion comprises a platen movably embedded in the mounting hole;

the support sideboard, the support sideboard sets up the platform deviates from the one side of connecting chamber, the elastic component connecting hole has been seted up to the last one side that lies in of support sideboard the platform, the elastic component that resets is connected in the elastic component connecting hole.

5. The fabricated bracket of claim 4, wherein a plurality of said spring attachment holes are provided, a plurality of said spring attachment holes being provided around said platen;

the reset elastic piece is a reset spring.

6. The fabricated bracket of claim 2, wherein the locking assembly further comprises: the transmission rod is movably arranged at one end of the jacking part, which is away from the connecting cavity, and abuts against the cam;

7. The fabricated bracket of claim 2, wherein a surface of the top pressure portion facing the connection cavity is provided with a V-shaped groove for snap-fitting an external mounting post.

8. The fabricated bracket of any of claims 1-7, wherein the wrench member further comprises: one end of the wrench rod is fixedly connected with the cam, and the other end of the wrench rod extends out of the bracket body;

the spanner rod is S-shaped.

9. The fabricated bracket of any of claims 2-7, wherein an opening is provided on one side of the connection chamber;

the opening of the connecting cavity is provided with a clamping table in a protruding mode on the inner wall of one side opposite to the top pressing part, and an upper V-shaped positioning groove is formed on one side of the clamping table.

10. A tracker structure comprising a fabricated bracket according to any one of claims 1 to 9, and a tracking sphere;

the bracket body includes: the connecting cavity is arranged on the connecting seat;

the ball frame is connected to one end of the supporting rod, which is far away from the connecting seat, and the tracking ball body is arranged on the ball frame.