Calcaneus reduction spreader

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a calcaneus reduction dilator which comprises symmetrically-arranged mounting blocks, first connecting rods and second connecting rods, the two first mounting blocks are rotationally connected through a sixth connecting rod, one side of each mounting block is fixedly connected with a plurality of symmetrically-arranged sliding rods, and the other side of each mounting block is fixedly connected with a second connecting rod. Sliding cavities corresponding to the sliding rods are formed in the first connecting rod and the second connecting rod correspondingly, the sliding rods are sleeved with springs, the two ends of the springs are fixedly connected with the sliding rods and the inner walls of the sliding cavities correspondingly, and the ends, away from the mounting block, of the first connecting rod and the second connecting rod are connected through a third connecting rod; the two ends of the third connecting rod are rotationally connected with the first connecting rod and the second connecting rod through rotating shafts correspondingly. According to the calcaneus reduction dilator, due to the arrangement of the elastic adjusting structure, the calcaneus reduction dilator can be freely adjusted according to actual requirements, and therefore the use convenience of the calcaneus reduction dilator is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a calcaneal repositioning and spreading device. Background Technology

[0002] Calcaneal fracture is one of the most common types of fractures among trauma patients. Severe calcaneal fractures can lead to intractable pain and functional impairment in the foot due to traumatic arthritis and malunion of the calcaneus, which seriously affects the patient's walking and quality of life.

[0003] The calcaneal reduction and retractor currently in use mainly consists of two sets of extension rods, each set consisting of two rods with screws at both ends and a sleeve in the middle.

[0004] However, the existing calcaneal reduction and retraction device has a relatively simple structure and cannot be adjusted according to actual usage needs, thus affecting the ease of use of the reduction and retraction device. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the repositioning and diverting device mentioned in the background art cannot be adjusted according to actual usage needs, and to propose a calcaneal repositioning and diverting device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A calcaneal reduction and retractor includes symmetrically arranged mounting blocks, a first connecting rod, and a second connecting rod. The two mounting blocks are rotatably connected to each other via a sixth connecting rod. A plurality of symmetrically arranged sliding rods are fixedly connected to one side of each mounting block. Each of the first and second connecting rods has a sliding cavity corresponding to the sliding rod. A spring is sleeved on each sliding rod, and the two ends of the spring are fixedly connected to the sliding rod and the inner wall of the sliding cavity, respectively. The ends of the first and second connecting rods away from the mounting blocks are connected via a third connecting rod. The two ends of the third connecting rod are rotatably connected to the first and second connecting rods via a pivot. Two adjacent first connecting rods are rotatably connected via a fourth connecting rod, and two adjacent second connecting rods are rotatably connected via a fifth connecting rod.

[0008] Preferably, a limiting block is fixedly connected to one end of the slide rod located inside the slide cavity.

[0009] Preferably, a torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring abut against the third connecting rod and the first connecting rod, respectively.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The calcaneal repositioning and retractor in this utility model is designed with an elastic adjustment structure, which allows the calcaneal repositioning and retractor to be freely adjusted according to actual needs, thereby effectively improving the ease of use of the repositioning and retractor.

[0012] 2. The torsion spring in this utility model can provide certain torsional support for the third connecting rod, the first connecting rod and the second connecting rod, while the limiting block can prevent the sliding rod from falling out of the sliding cavity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a calcaneal repositioning and spreading device proposed in this utility model;

[0014] Figure 2 This is a top view of the calcaneal repositioning and spreading device proposed in this utility model.

[0015] In the diagram: 1. Mounting block, 2. First connecting rod, 3. Second connecting rod, 4. Slide rod, 5. Spring, 6. Third connecting rod, 7. Rotating shaft, 8. Fourth connecting rod, 9. Fifth connecting rod, 10. Limiting block, 11. Sixth connecting rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-2 A calcaneal repositioning and spreading device includes symmetrically arranged mounting blocks 1, a first connecting rod 2 and a second connecting rod 3. The two mounting blocks 1 are rotatably connected by a sixth connecting rod 11. A plurality of symmetrically arranged sliding rods 4 are fixedly connected to one side of the mounting blocks 1. The first connecting rod 2 and the second connecting rod 3 are each provided with a sliding cavity corresponding to the sliding rod 4 for supporting the sliding rod 4.

[0018] In this embodiment, a spring 5 is sleeved on the slide rod 4. The two ends of the spring 5 are fixedly connected to the slide rod 4 and the inner wall of the slide cavity, respectively, which provides a certain elastic support for the slide rod 4. A limit block 10 is fixedly connected to one end of the slide rod 4 located in the slide cavity to prevent the slide rod 4 from falling out of the slide cavity.

[0019] In this embodiment, the ends of the first connecting rod 2 and the second connecting rod 3 away from the mounting block 1 are connected by a third connecting rod 6, and the two ends of the third connecting rod 6 are rotatably connected to the first connecting rod 2 and the second connecting rod 3 respectively through a rotating shaft 7;

[0020] In this embodiment, a torsion spring 5 is sleeved on the rotating shaft. The two ends of the torsion spring 5 abut against the third connecting rod 6 and the first connecting rod 2 respectively, providing a certain torsional support for the third connecting rod 6 and the first connecting rod 2. Two adjacent first connecting rods 2 are rotatably connected by a fourth connecting rod 8, and two adjacent second connecting rods 3 are rotatably connected by a fifth connecting rod 9.

[0021] In this embodiment, during use, the fourth connecting rod is placed at the patient's calcaneus, the fifth connecting rod is placed at the talus, and the sixth connecting rod is placed at the scaphoid. Simultaneously, under the elastic force of the spring, the sliding rod can be driven to slide within the sliding cavity, causing the first connecting rod 2, the second connecting rod 3, and the third connecting rod 6 to automatically tighten.

[0022] In this embodiment, the calcaneal repositioning device can be freely adjusted according to actual needs by setting the elastic adjustment structure, thereby effectively improving the ease of use of the repositioning device.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A calcaneal repositioning and spreading device, comprising symmetrically arranged mounting blocks (1), a first connecting rod (2), and a second connecting rod (3), characterized in that: The two mounting blocks (1) are rotatably connected by a sixth connecting rod (11). A plurality of symmetrically arranged sliding rods (4) are fixedly connected to one side of the mounting block (1). The first connecting rod (2) and the second connecting rod (3) are each provided with a sliding cavity corresponding to the sliding rod (4). A spring (5) is sleeved on the sliding rod (4). The two ends of the spring (5) are fixedly connected to the sliding rod (4) and the inner wall of the sliding cavity, respectively. The ends of the first connecting rod (2) and the second connecting rod (3) away from the mounting block (1) are connected by a third connecting rod (6). The two ends of the third connecting rod (6) are rotatably connected to the first connecting rod (2) and the second connecting rod (3) through a rotating shaft (7), respectively. Two adjacent first connecting rods (2) are rotatably connected by a fourth connecting rod (8), and two adjacent second connecting rods (3) are rotatably connected by a fifth connecting rod (9).

2. The calcaneal repositioning and spreading device according to claim 1, characterized in that: The sliding rod (4) is fixedly connected to a limiting block (10) at one end located inside the sliding cavity.

3. The calcaneal repositioning and spreading device according to claim 1, characterized in that: A torsion spring (5) is fitted on the rotating shaft, and the two ends of the torsion spring (5) abut against the third connecting rod (6) and the first connecting rod (2) respectively.

Images