CN219461105U - An arthroscopic positioning device - Google Patents

Abstract

The utility model discloses an arthroscopic positioning device, which relates to the structural field of the positioning device, and comprises an arc-shaped support arm and a positioning rod. The arc-shaped support arm is provided with a chute, and a guide sleeve is slidably installed in the chute. One end of the guide sleeve corresponds to one end of the positioning rod, one side of the arc-shaped support arm is provided with a rotation hole, and the positioning rod is rotatably installed in the rotation hole. In the utility model, when the position needs to be adjusted during treatment, one end of the top block is separated from the positioning rod by sliding the top block along the square sliding hole, and the restriction is released. Under the action of the elastic force, it can be quickly reset to form a fixed position, which is convenient and fast to operate. At the same time, after the guide sleeve slides to a suitable position, the quick fix assembly makes the guide sleeve and the rotating rod relatively fixed, and forms a triangular structure with the arc-shaped support arm , so that the position of the guide sleeve is fixed to prevent displacement.

Description

An arthroscope positioning device

technical field

The utility model relates to the structural field of a positioning device, in particular to an arthroscope positioning device.

Background technique

Arthroscopy is a commonly used method for clinical diagnosis and treatment of joint surgery diseases. In the process of using arthroscopy for surgery, it is usually necessary to use a positioning device with a working channel to assist each arthroscopic special instrument to pass through. When performing shoulder joint surgery with arthroscopic instruments, the doctor usually first penetrates the video endoscope at the back of the shoulder, observes directly through the endoscope to find the lesion of the shoulder joint, and uses a probe near the body surface projection of the lesion. Trial puncture, in the process of tentative puncture, doctors often need multiple punctures to accurately locate the lesion, and then establish a suitable working channel. Because the movement or improper operation of the arthroscopic surgical instrument drives the working channel to move, which makes the working channel deviate from the optimal position, the operator often needs to spend a long time adjusting the working channel again to make the working channel reach the optimal position, so as to continue to complete Operation.

In the prior art, as disclosed in the publication number CN214414799U, a positioning device for shoulder arthroscopic surgery is provided with a hemispherical rotor at the end of the positioning rod connected to the end of the arc-shaped support arm and is used for locking the hemispherical rotor. Locking screw, the arc arm is provided with a chute for the guide sleeve to pass through, which can ensure that the guide sleeve slides along the arc arm, and the arc arm can turn around the hemispherical Rotating in the horizontal direction, when the angle of the working channel needs to be adjusted in the three-dimensional space during the operation, the position adjustment of the guide sleeve in the three-dimensional space can be realized without removing the positioning rod, which effectively shortens the operation time of repositioning, It is beneficial for postoperative recovery. However, the device fixes the hemispherical turret with locking screws. In actual operation, it is necessary to use tools to rotate the screws, which is very inconvenient to operate. At the same time, the guide sleeve slides along the chute without an effective limit mechanism. It is easy to move the position of the guide sleeve during the operation, which is inconvenient to use. Therefore, we disclose an arthroscope positioning device to meet people's needs.

Utility model content

The purpose of this application is to provide an arthroscopic positioning device to solve the problem of fixing the hemispherical turret by locking screws in the device proposed in the above background technology. In actual operation, it is necessary to use a tool to rotate the screw, which is very inconvenient to operate. The guide sleeve slides along the chute without an effective limit mechanism, and the position of the guide sleeve is easy to move during the operation, which is inconvenient to use.

In order to achieve the above purpose, the present application provides the following technical solutions: an arthroscopic positioning device, comprising an arc-shaped support arm and a positioning rod, the arc-shaped support arm is provided with a chute, and a guide is slidably installed in the chute One end of the guide sleeve corresponds to one end of the positioning rod, and one side of the arc-shaped support arm is provided with a rotation hole, and the positioning rod is rotatably installed in the rotation hole. One end of the arc-shaped support arm is provided with a square sliding hole connected with the rotating hole, and a top block is slidably installed in the square sliding hole, and one end of the top block matches the outer wall of the positioning rod, so that The other end of the top block is equipped with an elastic unit, one end of the arc-shaped support arm is equipped with a fixed block through a pole, one end of the elastic unit is connected with one side of the fixed block, and the arc-shaped support arm A rotating rod is installed on the side close to the fixed block through a rotating shaft, and a quick fixing assembly is installed between the guide sleeve and the rotating rod.

Preferably, the elastic unit includes a spring, one end of which is installed on one side of the top block, and the other end is installed on one side of the fixed block.

Preferably, one end of the top block is provided with a groove, and a guide rod is installed on the bottom wall of the groove, the spring is sleeved on the guide rod, and one side of the fixed block is provided with a An avoidance hole, one end of the guide rod passes through the avoidance hole.

Preferably, a rubber pad is installed on the end of the top block away from the guide rod, and a rubber ring is correspondingly sleeved on the positioning rod, and one side of the rubber pad matches the outer wall of the rubber ring .

Preferably, handles are installed on both sides of the top block.

Preferably, the fast fixing assembly is composed of a base block and a limit bar, one side of the limit bar is installed on one side of the base block to form a T-shaped structure, and the base block is located on the limit bar. One side of the bar is provided with a tooth groove and forms a first rack, one side of the limit bar is installed with a rotating ring through a bracket, and a T-shaped column is installed on the outer wall of the guide sleeve through a fixing ring, so that A long sliding hole is opened on one side of the rotating rod, a second rack is installed on one side of the rotating rod, the limiting bar passes through the long sliding hole, and the two sides of the limiting bar are connected to the long sliding hole. The inner side wall of the sliding hole matches, and the rotating ring is rotatably installed on the T-shaped post, and a tensioning unit is installed between the limiting bar and the T-shaped post, and the first rack engages with the second rack.

Preferably, the tension unit includes a tension spring, one end of the tension spring is installed on one side of the limit bar, the other end is installed on one side of the T-shaped column, and one side of the base block is installed There are handles.

In summary, the technical effects and advantages of the present utility model:

1. In this utility model, when the position needs to be adjusted during treatment, slide the top block along the square sliding hole to keep one end of the top block away from the positioning rod, and the restriction is released. After the proper position, the top block quickly resets under the elastic force of the spring to form a fixed position, and the operation is convenient and fast. At the same time, after the guide sleeve slides to the proper position, the quick fixing component makes the guide sleeve and the rotating rod relatively fixed, and is connected with the The curved arms form a triangular structure, which keeps the guide sleeve in place and prevents displacement.

2. In the utility model, through the setting of the rotating ring, the rotating ring can rotate along the T-shaped column, and can also slide for a certain distance at the same time. The tension spring pulls the first rack to approach the second rack and engage with each other to form a fixed As a result, the base block is pulled in the opposite direction, the rotating ring slides along the T-shaped column for a certain distance, the first rack and the second rack are separated from each other, and the fixation is released, realizing fast fixation.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those skilled in the art, other drawings can also be obtained according to these drawings without creative work.

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is a partial cut-away structural schematic diagram of the restraining pin area in the utility model;

Fig. 3 is a partial cut-away structure schematic diagram of the rotating ring area in the utility model;

Fig. 4 is a schematic diagram of the three-dimensional structure of the limiting block in the present invention.

In the figure: 1. arc-shaped support arm; 2. positioning rod; 3. guiding sleeve; 4. fixed block; 5. rotating shaft; 6. rotating rod; 7. long sliding hole; 8. second rack; 9 , fast fixing assembly; 91, base block; 92, first rack; 93, limit bar; 94, rotating ring; 95, handle; 10, pole; 11, rubber pad; 12, rubber ring; 13, top Block; 14, guide rod; 15, spring; 16, handle; 17, fixed ring; 18, T-shaped post; 19, extension spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment: Referring to an arthroscopic positioning device shown in Figures 1-4, it includes an arc-shaped support arm 1 and a positioning rod 2. A chute is opened on the arc-shaped support arm 1, and a guide sleeve is slidably installed in the chute. 3. One end of the guide sleeve 3 corresponds to one end of the positioning rod 2. There is a rotation hole on one side of the arc support arm 1. The positioning rod 2 is rotated and installed in the rotation hole. One end of the arc support arm 1 is provided with a A square slide hole connected with the rotation hole, a top block 13 is slidably installed in the square slide hole, one end of the top block 13 matches the outer side wall of the positioning rod 2, and an elastic unit is installed on the other end of the top block 13, and the arc support One end of the arm 1 is equipped with a fixed block 4 through a support rod 10, one end of the elastic unit is connected with one side of the fixed block 4, and the side of the arc-shaped support arm 1 close to the fixed block 4 is installed with a rotating rod 6 through a rotating shaft 5 , A quick fixing assembly 9 is installed between the guide sleeve 3 and the rotating rod 6 .

Based on the above structure, through the setting of the rotation hole, the arc-shaped support arm 1 can rotate along the positioning rod 2 through the rotation hole, and one end of the top block 13 is pushed by the elastic unit against the positioning rod 2 to limit the rotation of the arc-shaped support arm 1. When it is necessary to adjust the position during treatment, slide the top block 13 along the square sliding hole, so that one end of the top block 13 is far away from the positioning rod 2, and the restriction is released, and the arc-shaped support arm 1 can be rotated to a suitable position. , the top block 13 is quickly reset under the action of the elastic unit to form a fixed, convenient and fast operation. At the same time, after the guide sleeve 3 slides to a suitable position, the quick fixing component 9 makes the guide sleeve 3 and the rotation rod 6 relatively fixed, And form a triangular structure with the arc-shaped support arm 1, so that the position of the guide sleeve 3 is fixed to prevent displacement.

As shown in Figure 2, the elastic unit includes a spring 15, one end of the spring 15 is installed on one side of the top block 13, and the other end is installed on one side of the fixed block 4, the spring 15 is in a compressed state, and one end of the spring 15 pushes the top block 13 Close to one side of the positioning rod 2, so that one end of the top block 13 is in conflict with the outer wall of the positioning rod 2 to form a fixing effect.

As shown in Figure 2, a groove is provided at one end of the top block 13, a guide rod 14 is installed on the groove wall at the bottom side of the groove, a spring 15 is sleeved on the guide rod 14, and an avoidance hole is provided on one side of the fixed block 4. One end of the guide rod 14 runs through the avoidance hole. Through the setting of the guide rod 14, the spring 15 can be compressed or stretched along the guide rod 14 to prevent bending deformation, which will cause the spring 15 to not work normally. The setting of the groove can increase the spring 15. Accommodating space, thereby increasing the length of the spring 15.

As shown in Figure 2, a rubber pad 11 is installed on the top block 13 away from the end of the guide rod 14, and a rubber ring 12 is installed on the positioning rod 2, and one side of the rubber pad 11 matches the outer wall of the rubber ring 12. , through the setting of the rubber pad 11 and the rubber ring 12, a larger friction force can be generated between the rubber pad 11 and the rubber ring 12, which increases the friction force between the top block 13 and the positioning rod 2, and better restricts the positioning rod 2 turn.

As shown in FIG. 2 , handles 16 are installed on both sides of the top block 13 , through the setting of the handle 16 , it is convenient to make the top block 13 approach one side of the fixed block 4 , increasing the convenience of use.

As shown in Figures 3 and 4, the quick fixing assembly 9 is made up of a base block 91 and a limit bar 93, one side of the limit bar 93 is installed on one side of the base block 91 and forms a T-shaped structure, and the base block 91 is located on the limit bar 91. One side of the position bar 93 is provided with tooth grooves and forms the first rack 92, one side of the limit bar 93 is equipped with a rotating ring 94 through a bracket, and a T-shaped ring 17 is installed on the outer wall of the guide sleeve 3 through a fixed ring 17. Column 18, one side of the rotating rod 6 is provided with a long sliding hole 7, and one side of the rotating rod 6 is equipped with a second rack 8, and the limiting bar 93 runs through the long sliding hole 7, and the two sides of the limiting bar 93 are connected with the long sliding hole. The inside wall of the hole 7 is matched, and the rotating ring 94 is installed on the T-shaped column 18 in rotation, and a tensioning unit is installed between the limit bar 93 and the T-shaped column 18, and the first tooth bar 92 and the second tooth bar 8 are meshed, through the setting of the rotating ring 94, the rotating ring 94 can rotate along the T-shaped column 18, and can also slide for a certain distance at the same time, and the tensioning unit pulls the first rack 92 to approach the second rack 8 and engage with each other , to form a fixing effect, pull the base block 91 in the opposite direction, the rotating ring 94 slides along the T-shaped column 18 for a certain distance, the first rack 92 and the second rack 8 are separated from each other, and the fixing is released.

As shown in Figure 3, the tension unit includes a tension spring 19, one end of the tension spring 19 is installed on one side of the limit bar 93, the other end is installed on one side of the T-shaped post 18, and a handle is installed on one side of the base block 91 95 , the tension spring 19 pulls the first rack 92 to approach the second rack 8 and mesh with each other through the tension, and the handle 95 facilitates pulling the base block 91 .

The working principle of the utility model:

Through the setting of the rotation hole, the arc support arm 1 can rotate along the positioning rod 2 through the rotation hole, and one end of the top block 13 touches the positioning rod 2 under the push of the spring 15, limiting the rotation of the arc support arm 1, which is needed during treatment. When adjusting the position, slide the jacking block 13 along the square sliding hole, so that one end of the jacking block 13 is away from the positioning rod 2, and the restriction is released, and the arc-shaped support arm 1 can be rotated. After turning to a suitable position, the jacking block 13 Quickly reset under the elastic force of the spring 15 to form a fixed, convenient and fast operation. At the same time, after the guide sleeve 3 slides to a suitable position, the quick fix assembly 9 makes the guide sleeve 3 and the rotating rod 6 relatively fixed, and the arc The shaped support arm 1 forms a triangular structure, so that the position of the guide sleeve 3 is fixed to prevent displacement.

Finally, it should be noted that: the above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall be Included within the scope of protection of the present utility model.

Claims (7)

1. The utility model provides an arthroscope positioner, includes arc support arm (1) and locating lever (2), the spout has been seted up on arc support arm (1), sliding fit has guide sleeve (3) in the spout, guide sleeve (3) one end with the one end of locating lever (2) is corresponding, its characterized in that: the utility model discloses a quick-action type rotary support is characterized in that a rotary hole is formed in one side of an arc-shaped support arm (1), a positioning rod (2) is rotatably installed in the rotary hole, a square sliding hole communicated with the rotary hole is formed in one end of the arc-shaped support arm (1), a jacking block (13) is slidably installed in the square sliding hole, one end of the jacking block (13) is matched with the outer side wall of the positioning rod (2), an elastic unit is installed at the other end of the jacking block (13), a fixing block (4) is installed at one end of the arc-shaped support arm (1) through a supporting rod (10), one end of the elastic unit is connected with one side of the fixing block (4), a rotary rod (6) is rotatably installed on one side, close to the fixing block (4), and a quick-action type fixing assembly (9) is installed between a guide sleeve (3) and the rotary rod (6).

2. An arthroscopic positioning device according to claim 1 and wherein: the elastic unit comprises a spring (15), one end of the spring (15) is installed on one side of the top block (13), and the other end of the spring is installed on one side of the fixed block (4).

3. An arthroscopic positioning device according to claim 2 and wherein: the novel anti-collision device is characterized in that a groove is formed in one end of the top block (13), a guide rod (14) is mounted on the wall of the bottom side groove of the groove, a spring (15) is sleeved on the guide rod (14), an avoidance hole is formed in one side of the fixed block (4), and one end of the guide rod (14) penetrates through the avoidance hole.

4. An arthroscopic positioning device according to claim 3 and wherein: the rubber pad (11) is installed to the one end that keeps away from on kicking block (13) guide arm (14), the rubber ring (12) is installed to corresponding cup joint on locating lever (2), one side of rubber pad (11) with the lateral wall phase-match of rubber ring (12).

5. An arthroscopic positioning device according to claim 1 and wherein: handles (16) are arranged on two sides of the top block (13).

6. An arthroscopic positioning device according to claim 1 and wherein: quick fixed subassembly (9) comprises basic block (91) and spacing (93), one side of spacing (93) is installed one side of basic block (91) and is formed T shape structure, be located on basic block (91) tooth's socket has been seted up to one side of spacing (93) and first rack (92) is formed, install rotation ring (94) through the support mounting on one side of spacing (93), install T shape post (18) through retainer plate (17) on the lateral wall of guide sleeve (3), long slide hole (7) have been seted up to one side of dwang (6), second rack (8) are installed to one side of dwang (6), spacing (93) run through long slide hole (7), both sides of spacing (93) with the inside wall phase-match of long slide hole (7), just rotation ring (94) rotate and install on T shape post (18), spacing (93) with install tensioning unit (92) and first rack (8) looks meshing.

7. An arthroscopic positioning device according to claim 6 and wherein: the tensioning unit comprises a tension spring (19), one end of the tension spring (19) is installed on one side of the limiting strip (93), the other end of the tension spring is installed on one side of the T-shaped column (18), and a handle (95) is installed on one side of the base block (91).