Variable angle half ring

Abstract

The utility model discloses the variable angle half ring relates to medical instrument bone surgery fixing frame accessory technical field, including outer fixed support and support half ring, the both ends of support half ring are provided with connecting mechanism, the connecting mechanism includes hinge bolt, connecting bolt, connecting sleeve and connecting block, the hinge bolt is connected with outer fixed support sliding, the connecting sleeve is connected with support half ring sliding, the top fixed communication of hinge bolt is limited ring, this variable angle half ring, through hinge bolt and connecting bolt, will support half ring both ends fixed in outer fixed support surface, improves support half ring fixed mounting efficiency, through support half ring, positioning is carried out to connecting sleeve, avoids connecting sleeve and rotates at random, through connecting bolt, will hinge bolt and connecting sleeve fixed together, through connecting block and limit ring, positioning is carried out to hinge bolt and support half ring, fixes the angle to support half ring, improves the stability of support half ring operation.

Description

Technical Field

[0001] This utility model relates to the technical field of medical device orthopedic fixation bracket accessories, specifically a variable angle semi-ring. Background Technology

[0002] Foot ring external fixators are common medical devices widely used in clinical practice. They are primarily used to treat lower limb deformities, foot fractures, sprains, and joint dislocations. By fixing and supporting the foot, they protect the injured area and promote bone healing and rehabilitation. They provide stable support, reduce patient pain, and prevent further injury.

[0003] Whether using Taylor 3D space or Ilizarov external fixation to treat foot or lower limb orthopedic problems, a ring structure is required to build the frame. However, the semi-ring fixed connection makes it difficult to adjust the angle according to the patient's foot condition and to provide effective protection for the patient's instep. To address these issues, we provide a variable angle semi-ring. Utility Model Content

[0004] The purpose of this invention is to provide a variable angle semi-ring to solve the problems raised in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a variable angle semi-ring, comprising an external fixed bracket and a supporting semi-ring, wherein the two ends of the supporting semi-ring are provided with connecting mechanisms, the connecting mechanisms comprising a hinge bolt, a connecting bolt, a connecting sleeve, and a connecting block, the hinge bolt being slidably connected to the external fixed bracket, the connecting sleeve being slidably connected to the supporting semi-ring, and the connecting bolt sequentially passing through the hinge bolt and the connecting sleeve, the top end of the hinge bolt being fixedly connected to a limit ring, and the connecting block being engaged with the limit ring.

[0006] Preferably, the bottom end of the hinge bolt is threaded with a fixing nut, and the fixing nut abuts against the external fixing bracket. The hinge bolt is fixed by the fixing nut, thereby improving the stability of the installation of the hinge bolt and the external fixing bracket.

[0007] Preferably, one end of the connecting bolt is threaded with a connecting nut, and the connecting nut abuts against the connecting sleeve. The connecting nut tightens the connecting bolt, causing the connecting sleeve to drive the connecting block and the limiting ring to be tightly engaged together.

[0008] Preferably, a limiting groove is formed inside the supporting semi-ring, and a limiting rod is fixedly connected to the surface of the connecting sleeve. The limiting rod is slidably connected to the limiting groove. The limiting groove limits the limiting rod, thereby positioning the connecting sleeve and keeping the connecting sleeve and the supporting semi-ring sliding horizontally.

[0009] Preferably, a connecting ring is fixedly connected to one end of the connecting sleeve, and a connecting block is fixed to the surface of the connecting ring. The connecting ring fixes the connecting block, thereby improving the positioning capability of the limiting ring for the connecting sleeve.

[0010] Preferably, a telescopic spring is fixedly connected to the surface of the connecting ring, and the telescopic spring is fixedly connected to the supporting half ring. The telescopic spring increases the tension on the connecting ring, causing the connecting block to disengage from the limiting ring.

[0011] Preferably, the connecting ring is slidably connected to the supporting half-ring, and the limiting ring has a larger diameter than the connecting ring. The supporting half-ring is used to store and position the connecting ring, thereby improving the stability of the connecting ring's operation.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application uses hinge bolts and connecting bolts to fix both ends of the support half-ring to the surface of the external fixed bracket, improving the installation efficiency of the support half-ring. The support half-ring is used to position the connecting sleeve, preventing it from rotating arbitrarily. The connecting bolts are used to fix the top of the hinge bolt to the connecting sleeve. The connecting block and the limiting ring are used to position the hinge bolt and the support half-ring, and fix the angle of the support half-ring, preventing it from swinging arbitrarily after fixing, thus improving the stability of the support half-ring during operation.

[0014] 2. This application uses a fixing nut to fix the hinge bolt, improving the stability of the hinge bolt and the external fixed bracket installation. The connecting nut is used to tighten the connecting bolt, causing the connecting sleeve to drive the connecting block and the limiting ring to be tightly engaged together, improving the stability of the positioning of the supporting half ring. The limiting slot is used to limit the limiting rod, thereby positioning the connecting sleeve and keeping the connecting sleeve and the supporting half ring sliding horizontally, improving the positioning capability of the connecting sleeve for the supporting half ring.

[0015] 3. This application uses a connecting ring to fix the connecting block, improving the positioning capability of the limiting ring for the connecting sleeve. A telescopic spring increases the tension on the connecting ring, allowing it to be pulled back into the supporting half-ring after the connecting nut is removed, thus disengaging the connecting block from the limiting ring. This improves the convenience of adjusting the angle of the supporting half-ring. The supporting half-ring also stores and positions the connecting ring, enhancing its operational stability. Furthermore, by increasing the size of the limiting ring, it prevents the limiting ring from entering the sliding groove of the supporting half-ring, improving the stability of the connection block's disengagement from the limiting ring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the variable angle semi-ring of this utility model;

[0017] Figure 2 This is a schematic diagram of the supporting semi-ring structure of the variable angle semi-ring of this utility model;

[0018] Figure 3 This is a cross-sectional view of the connecting mechanism of the variable angle semi-ring of this utility model;

[0019] Figure 4 This is an exploded view of the connecting mechanism structure of the variable angle semi-ring of this utility model.

[0020] The following are the labels in the diagram: 1. External fixed bracket; 2. Support half ring; 3. Connecting mechanism; 301. Hinge bolt; 302. Fixing nut; 303. Connecting bolt; 304. Connecting nut; 305. Limiting ring; 306. Connecting sleeve; 307. Limiting rod; 308. Limiting groove; 309. Connecting ring; 310. Connecting block; 311. Telescopic spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4 As shown, this utility model provides a technical solution for a variable angle semi-ring, including an external fixed bracket 1 and a supporting semi-ring 2. The two ends of the supporting semi-ring 2 are provided with a connecting mechanism 3. The connecting mechanism 3 includes a hinge bolt 301, a connecting bolt 303, a connecting sleeve 306, and a connecting block 310. The hinge bolt 301 is slidably connected to the external fixed bracket 1. Through the hinge bolt 301 and the connecting bolt 303, the two ends of the supporting semi-ring 2 are fixed to the surface of the external fixed bracket 1, thereby improving the installation efficiency of the supporting semi-ring 2.

[0023] The bottom end of the hinge bolt 301 is threaded with a fixing nut 302, and the fixing nut 302 abuts against the external fixing bracket 1. The hinge bolt 301 is fixed by the fixing nut 302, thereby improving the stability of the installation of the hinge bolt 301 and the external fixing bracket 1.

[0024] One end of the connecting bolt 303 is threaded with a connecting nut 304, and the connecting nut 304 abuts against the connecting sleeve 306. The connecting bolt 303 is tightened by the connecting nut 304, so that the connecting sleeve 306 drives the connecting block 310 to be tightly engaged with the limiting ring 305, thereby improving the stability of the positioning of the supporting half ring 2.

[0025] The connecting sleeve 306 is slidably connected to the supporting half-ring 2, and the connecting bolt 303 passes through the hinge bolt 301 and the connecting sleeve 306 in sequence. The top end of the hinge bolt 301 is fixedly connected to the limiting ring 305, and the connecting block 310 is engaged with the limiting ring 305. The supporting half-ring 2 positions the connecting sleeve 306 to prevent it from rotating arbitrarily. The connecting bolt 303 fixes the top end of the hinge bolt 301 to the connecting sleeve 306. The connecting block 310 and the limiting ring 305 position the hinge bolt 301 and the supporting half-ring 2, and fix the angle of the supporting half-ring 2 to prevent it from swinging arbitrarily after fixing, thus improving the stability of the supporting half-ring 2.

[0026] A limiting groove 308 is provided inside the supporting half-ring 2. A limiting rod 307 is fixedly connected to the surface of the connecting sleeve 306, and the limiting rod 307 is slidably connected to the limiting groove 308. The limiting groove 308 limits the limiting rod 307, thereby positioning the connecting sleeve 306, so that the connecting sleeve 306 and the supporting half-ring 2 can slide horizontally, improving the positioning capability of the connecting sleeve 306 for the supporting half-ring 2.

[0027] A connecting ring 309 is fixedly connected to one end of the connecting sleeve 306, and a connecting block 310 is fixed to the surface of the connecting ring 309. The connecting ring 309 fixes the connecting block 310, thereby improving the positioning capability of the limiting ring 305 on the connecting sleeve 306.

[0028] The connecting ring 309 is slidably connected to the supporting half-ring 2, and the limiting ring 305 has a larger diameter than the connecting ring 309. The supporting half-ring 2 is used to store and position the connecting ring 309, thereby improving the stability of the connecting ring 309's operation. By increasing the size of the limiting ring 305, the limiting ring 305 is prevented from entering the sliding groove of the supporting half-ring 2, thereby improving the stability of the connecting block 310 disengaging from the limiting ring 305.

[0029] A telescopic spring 311 is fixedly connected to the surface of the connecting ring 309, and the telescopic spring 311 is fixedly connected to the support half ring 2. The telescopic spring 311 increases the tension on the connecting ring 309. After the connecting nut 304 is removed, the connecting ring 309 is pulled back into the support half ring 2, thereby causing the connecting block 310 to disengage from the limiting ring 305, improving the convenience of adjusting the angle of the support half ring 2.

[0030] In use, this invention works as follows: The hinge bolt 301 is fixed to the corresponding position of the external fixing bracket 1 by fixing nut 302. The connecting bolt 303 is tightened by connecting nut 304, causing the connecting sleeve 306 to move the connecting block 310, which then engages with the limiting ring 305, fixing the position of the supporting half-ring 2 and preventing it from swinging freely. When adjusting the angle of the supporting half-ring 2, the connecting nut 304 is loosened first, and the connecting ring 309 is pulled back into the supporting half-ring 2 by the telescopic spring 311, causing the connecting block 310 to disengage from the limiting ring 305, facilitating the adjustment of the angle of the supporting half-ring 2. This device not only lifts and pulls the affected area but also provides closed-loop protection, forming a protective space. The size of this space can be adjusted according to actual conditions, which is more conducive to the patient's postoperative rehabilitation exercises.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A variable angle semi-ring, comprising an external fixed bracket (1) and a supporting semi-ring (2), characterized in that: The two ends of the supporting half-ring (2) are provided with connecting mechanisms (3). The connecting mechanism (3) includes a hinge bolt (301), a connecting bolt (303), a connecting sleeve (306), and a connecting block (310). The hinge bolt (301) is slidably connected to the external fixed bracket (1), the connecting sleeve (306) is slidably connected to the supporting half-ring (2), and the connecting bolt (303) passes through the hinge bolt (301) and the connecting sleeve (306) in sequence. The top end of the hinge bolt (301) is fixedly connected to a limiting ring (305), and the connecting block (310) is engaged with the limiting ring (305).

2. The variable angle semi-ring according to claim 1, characterized in that: The bottom end of the hinge bolt (301) is threaded with a fixing nut (302), and the fixing nut (302) abuts against the external fixing bracket (1).

3. The variable angle semi-ring according to claim 1, characterized in that: One end of the connecting bolt (303) is threaded with a connecting nut (304), and the connecting nut (304) abuts against the connecting sleeve (306).

4. The variable angle semi-ring according to claim 1, characterized in that: The supporting semi-ring (2) has a limiting groove (308) inside, and the surface of the connecting sleeve (306) is fixedly connected to a limiting rod (307), and the limiting rod (307) is slidably connected to the limiting groove (308).

5. The variable angle semi-ring according to claim 1, characterized in that: One end of the connecting sleeve (306) is fixedly connected to a connecting ring (309), and the connecting block (310) is fixed to the surface of the connecting ring (309).

6. The variable angle semi-ring according to claim 5, characterized in that: A telescopic spring (311) is fixedly connected to the surface of the connecting ring (309), and the telescopic spring (311) is fixedly connected to the supporting half ring (2).

7. The variable angle semi-ring according to claim 5, characterized in that: The connecting ring (309) is slidably connected to the supporting half-ring (2), and the limiting ring (305) has a larger diameter than the connecting ring (309).

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