Orthopedic surgery retractor

Abstract

The utility model discloses an orthopedic surgery drag hook, and relates to the field of medical instruments. The orthopedic surgery retractor comprises a first arc-shaped block and a second arc-shaped block, the first arc-shaped block and the second arc-shaped block are rotationally connected through a pin shaft, a mounting block is fixed to one side face of the first arc-shaped block, a hook and an adjusting cylinder are arranged on one side of the mounting block, and the adjusting cylinder is rotationally connected with the mounting block through the pin shaft; a positioning hole is formed in the surface of the adjusting cylinder; the adjusting rod is adjustable; the adjusting rod slides in the adjusting cylinder to drive the hook to move, so that the position of the hook is adjusted, a worker can conveniently use the hook to perform hook limiting on a patient part during orthopedic surgery operation, the traditional mode of pulling a hook with a hand is changed, the labor intensity is reduced, the use is flexible and convenient, and the working efficiency is improved. Meanwhile, the protruding parts are arranged on the hooks, so that the hooks of the patient can be protected, damage to human body parts is avoided, and the good protection effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically, it relates to an orthopedic surgical retractor. Background Technology

[0002] Retractors are frequently used in orthopedic surgery to broaden the surgical field, thereby ensuring the smooth progress of the operation.

[0003] In orthopedic surgery, the main focus of the surgical field of exposure is to pull on highly elastic tissues such as muscles and ligaments. Existing surgical retractors have simple structures and require considerable effort to pull, often requiring manual traction, which greatly increases the difficulty of the work for medical staff. Furthermore, some retractors fixed on the operating table are usually very difficult to adjust, making them unable to meet the surgical requirements of patients of different body sizes. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an orthopedic surgical retractor that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: an orthopedic surgical retractor, including a first arc-shaped block and a first arc-shaped block, the first arc-shaped block and the first arc-shaped block being rotatably connected by a pin, a mounting block being fixed on one side of the first arc-shaped block, a hook being provided on one side of the mounting block, an adjusting cylinder being rotatably connected to the mounting block by a pin, the adjusting cylinder having a positioning hole on its surface; an adjustable adjusting rod being slidably connected inside the adjusting cylinder for adjusting the length of the hook; and a protrusion being provided on the arc-shaped inner wall surface of the hook for protecting the contact part of the hook.

[0006] Furthermore, a groove is formed on one end surface of the adjusting rod, a fixed cylinder is fixed in the groove, a compression spring is fixed inside the fixed cylinder, a first movable block is fixed to one end of the compression spring, and a limit member is installed on one side of the first movable block.

[0007] Furthermore, the limiting component includes a movable rod fixed to one side of the first movable block, one end of the movable rod passing through the fixed cylinder and fixedly connected to a locking block, one side of the locking block being provided with a rounded corner, and the locking block being adapted to the positioning hole.

[0008] Furthermore, one end of the adjusting rod is fixed to an installation cylinder, and a pull rod is slidably connected inside the installation cylinder. One end of the pull rod is fixed to a second movable block, which is slidably connected inside the installation cylinder. A compression spring is sleeved on the surface of the pull rod, and the two ends of the compression spring are fixedly connected to the second movable block and the inner wall of the installation cylinder, respectively.

[0009] Furthermore, an airbag is fixed to one side of the second movable block, one end of the airbag is embedded in the inner wall of the mounting cylinder, and an air supply pipe is fixed to one end of the airbag.

[0010] Furthermore, the hook has an internal cavity, one end of the air supply pipe is connected to the cavity, and one end of the air supply pipe is threadedly connected to the air inlet at one end of the hook.

[0011] Furthermore, the second arc-shaped block and the first arc-shaped block are provided with mounting holes, and bolts are provided in the mounting holes. One end of the hook is fixedly installed together with the pull rod by screws.

[0012] Furthermore, the airbag is cylindrical, and a wear-resistant layer is fixed to the surface of the airbag.

[0013] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention sets an adjusting rod to slide inside the adjusting cylinder, thereby driving the hook to move and adjusting the position of the hook. This makes it convenient for staff to use the hook to limit the hook position on the patient's body during orthopedic surgery, changing the traditional method of using a hand-pulled hook. This saves more labor intensity and is flexible and convenient to use. At the same time, the protrusion set at the hook can protect the hook position on the patient and avoid damage to the human body, thus playing a good protective role.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of an orthopedic surgical retractor proposed in this utility model;

[0017] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the adjusting rod and adjusting cylinder of an orthopedic surgical retractor proposed in this utility model;

[0018] Figure 3 The present utility model proposes Figure 2 Enlarged structural diagram of region A in the middle;

[0019] Figure 4 This is an exploded view of the adjusting rod and adjusting cylinder in an orthopedic surgical retractor proposed in this utility model;

[0020] Figure 5 This is a frontal sectional view of the orthopedic surgical retractor proposed in this utility model;

[0021] Figure 6 The present utility model proposes Figure 5A magnified structural diagram of region B in the middle.

[0022] In the diagram: 1. First arc-shaped block; 11. Second arc-shaped block; 12. Bolt; 2. Mounting block; 3. Adjusting cylinder; 31. Positioning hole; 4. Adjusting rod; 41. Locking block; 42. Moving rod; 43. First movable block; 44. Fixed cylinder; 45. Compression spring; 5. Mounting cylinder; 51. Second movable block; 52. Pull rod; 53. Compression spring; 54. Airbag; 55. Air supply pipe; 56. Cavity; 57. Protrusion; 7. Hook. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] Example 1:

[0025] Reference Figures 1-6 An orthopedic surgical retractor includes a first arc-shaped block 1 and a second arc-shaped block 11, which are rotatably connected by a pin. A mounting block 2 is fixed to one side of the first arc-shaped block 1, and a hook 7 is provided on one side of the mounting block 2. An adjusting cylinder 3 is rotatably connected to the mounting block 2 by a pin, and a positioning hole 31 is provided on the surface of the adjusting cylinder 3. An adjustable adjusting rod 4 is slidably connected inside the adjusting cylinder 3 for adjusting the length of the hook 7. A protrusion 57 is provided on the arc-shaped inner wall surface of the hook 7 for protecting the contact part of the hook 7.

[0026] In use, the first arc-shaped block 1 and the second arc-shaped block 11 are fixedly installed on the operating table support. The two sets of hook components are located on both sides of the operating table. During use, the staff can hook the patient's affected bone with the hook 7 to pull and limit the bone, facilitating subsequent surgical operations. During the operation, the position of the hook 7 can be adjusted by manually pulling the adjusting rod 4 inside the adjusting cylinder 3 as needed, allowing for better adjustment according to the needs of the site. This enables better hook operation for different patients in orthopedic surgery. This solution frees up the staff's hands during orthopedic surgery, requiring less medical personnel assistance and reducing the workload of the staff. It is flexible and convenient to use. Furthermore, the protrusion 57 protects the contact area of ​​the hook 7, preventing injury to the patient and providing excellent protection.

[0027] Example 2:

[0028] Reference Figures 1-6A surgical retractor for orthopedic surgery, essentially the same as in Example 1, but with a further improvement:

[0029] A groove is provided on one end of the adjusting rod 4, and a fixed cylinder 44 is fixed in the groove. A compression spring 45 is fixed inside the fixed cylinder 44. A first movable block 43 is fixed to one end of the compression spring 45. A limiting component is installed on one side of the first movable block 43. The limiting component includes a moving rod 42 fixed to one side of the first movable block 43. One end of the moving rod 42 passes through the fixed cylinder 44 and is fixedly connected to a locking block 41. One side of the locking block 41 is provided with a rounded corner. The locking block 41 is adapted to the positioning hole 31.

[0030] During adjustment, press the two locking blocks 41 with your hand to retract them into the adjusting cylinder 3, and then pull the adjusting rod 4 to slide inside the adjusting cylinder 3. Adjust to the appropriate position, and under the elastic rebound of the compression spring 45, squeeze the locking blocks 41 and lock them into the positioning holes 31 at the corresponding positions for limiting and fixing. In this way, the position of the hook 7 is adjusted. Compared with the traditional method, the fixed length hook 7 is adjusted by manual pulling, which is more labor-saving and convenient, and improves the flexibility of the device.

[0031] One end of the adjusting rod 4 is fixed to the mounting cylinder 5. The mounting cylinder 5 is slidably connected to the pull rod 52. One end of the pull rod 52 is fixed to the second movable block 51. The second movable block 51 is slidably connected inside the mounting cylinder 5. The surface of the pull rod 52 is fitted with a compression spring 53. The two ends of the compression spring 53 are fixedly connected to the second movable block 51 and the inner wall of the mounting cylinder 5, respectively. One side of the second movable block 51 is fixed with an airbag 54. One end of the airbag 54 is embedded in the inner wall of the mounting cylinder 5. One end of the airbag 54 is fixed with an air supply pipe 55. The hook 7 has a cavity 56 inside. One end of the air supply pipe 55 is connected to the cavity 56. One end of the air supply pipe 55 is threadedly connected to the air inlet of one end of the hook 7. The airbag 54 is long and cylindrical. The surface of the airbag 54 is fixed with a wear-resistant layer.

[0032] When the hook 7 is hooked onto the patient's bone for restraint, the position of the adjusting rod 4 is adjusted according to the pulling force required. During this process, the adjusting rod 4 is adjusted more easily by the elastic buffering effect of the compression spring 53. When the second movable block 51 slides inside the mounting cylinder 5, it compresses the airbag 54, causing the air inside the airbag 54 to be compressed and delivered into the cavity 56. The air compresses multiple protrusions 57, causing them to expand and protrude, thereby increasing the friction of the hook 7 and improving the stability of the hook. At the same time, the expanded protrusions 57 contact the bone at the patient's hook location, providing a good protective effect.

[0033] It should be noted that the protrusion 57 is made of medical rubber material, and a vent hole is provided on the arc-shaped inner wall surface of the hook 7. The protrusion 57 is fixed in the vent hole, and the vent hole is connected to the cavity 56. The wear-resistant layer on the surface of the airbag 54 is made of polyurethane composite material, which provides good protection for the airbag 54 and will not be affected by the compression spring 53.

[0034] The second arc-shaped block 11 and the first arc-shaped block 1 are provided with mounting holes, and bolts 12 are provided in the mounting holes. One end of the hook 7 is fixed together with the pull rod 52 by screws. The bolts 12 make it easy to fix the first arc-shaped block 1 and the second arc-shaped block 11 on the operating table support.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. Orthopedic surgery drag hook, comprising a first arc block (1) and a second arc block (11), the first arc block (1) and the second arc block (11) are connected by pin shaft rotation, one side of the first arc block (1) is fixed with a mounting block (2), one side of the mounting block (2) is provided with a hook (7), characterized in that, Adjusting cylinder (3) is connected with mounting block (2) by pin shaft rotation, the surface of the adjusting cylinder (3) is provided with positioning hole (31); Adjustable adjusting rod (4) is connected in the adjusting cylinder (3), for adjusting the length of the hook (7); The convex part (57) is arranged on the surface of the hook (7), which is used for protecting the contact part of the hook (7).

2. The surgical retractor according to claim 1, wherein: The surface of one end of the adjusting rod (4) is provided with a groove, and the groove is fixed with a fixed cylinder (44), the inside of the fixed cylinder (44) is fixed with an extrusion spring (45), one end of the extrusion spring (45) is fixed with a first movable block (43), and the side surface of the first movable block (43) is provided with a limiting piece.

3. The surgical retractor according to claim 2, wherein: The limiting piece comprises a moving rod (42) fixed on the side surface of the first movable block (43), one end of the moving rod (42) penetrates through the fixed cylinder (44) and is fixedly connected with a clamping block (41), one side surface of the clamping block (41) is provided with a round corner, and the clamping block (41) is matched with the positioning hole (31).

4. The surgical retractor according to claim 1, wherein: One end of the adjusting rod (4) is fixedly connected with a mounting cylinder (5), the inside of the mounting cylinder (5) is slidably connected with a pull rod (52), one end of the pull rod (52) is fixedly connected with a second movable block (51), the second movable block (51) is slidably connected in the mounting cylinder (5), and the surface of the pull rod (52) is sleeved with a compression spring (53), the two ends of the compression spring (53) are respectively connected with the second movable block (51) and the inner wall of the mounting cylinder (5).

5. The surgical retractor according to claim 4, wherein: One side of the second movable block (51) is fixedly connected with an air bag (54), one end of the air bag (54) is embedded in the inner wall of the mounting cylinder (5), and one end of the air bag (54) is fixedly connected with a gas pipe (55).

6. The surgical retractor according to claim 5, wherein: The inside of the hook (7) is provided with a cavity (56), one end of the gas pipe (55) is connected with the cavity (56), and one end of the gas pipe (55) is threadedly connected with the air inlet of one end of the hook (7).

7. The surgical retractor according to claim 1, wherein: The second arc block (11) and the first arc block (1) are provided with mounting holes, the mounting holes are provided with bolts (12), and one end of the hook (7) is fixedly connected with the pull rod (52) by screws.

8. The surgical retractor according to claim 5, wherein: The air bag (54) is a long cylinder, and the surface of the air bag (54) is fixedly connected with a wear-resistant layer.

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