Positioning vertebral plate drag hook

Abstract

The utility model relates to the technical field of medical instruments, and provides a positioning vertebral plate drag hook which comprises a first plate body, a second plate body and a third plate body. The third plate body comprises a third connecting plate, an outer plate, an inner plate and a fourth connecting plate; the outer plate sleeves the outer side of the inner plate; the first end of the first plate body is detachably provided with a fixing assembly, and the fixing assembly is detachably connected with the third plate body; the fixing assembly comprises a fixing plate, a fixing frame and a locking piece. According to the positioning vertebral plate retractor, the length of the third plate body can be adjusted by arranging the third plate body and sliding the outer plate and the inner plate, so that the positioning vertebral plate retractor is convenient for different operators to use; the fixing assembly is further arranged, so that the third plate body is fixedly connected with the fixing plate, and injury to a patient caused by slipping of the third plate body during use by the operator is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a positioning lamina retractor. Background Art

[0002] A lamina retractor is an instrument commonly used in orthopedic surgery, mainly used for lamina fixation and traction in spinal surgery. It is usually made of stainless steel and has a curved hook-shaped head and a handle. The main function of the lamina retractor is to fix and pull the lamina by inserting the hook-shaped head into the lamina bone tissue. In spinal surgery, the lamina retractor can be used in surgical procedures such as laminectomy, interlaminar fusion and lamina correction. The use of the lamina retractor is relatively simple. The doctor can insert the hook-shaped head into the lamina bone tissue through the handle and fix and pull it with appropriate force. However, it also has some limitations, such as being only suitable for specific surgical scenarios, may cause certain damage to the lamina, and the lamina retractor may slip due to doctor fatigue after long-term use.

[0003] Therefore, a fixable positioning lamina retractor is urgently needed. Utility Model Content

[0004] The utility model aims to provide a positioning lamina hook in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is a positioning lamina hook, comprising: a first plate body, a second plate body whose proximal end is fixedly connected to the distal end of the first plate body, and a third plate body whose first end is rotatably connected to the proximal end of the first plate body; wherein:

[0007] The third plate body comprises: a third connecting plate, an outer plate whose proximal end is fixedly connected to the second end of the third connecting plate, an inner plate whose proximal end is slidably connected to the distal end of the outer plate, and a fourth connecting plate whose proximal end is fixedly connected to the distal end of the inner plate; the outer plate is sleeved on the outer side of the inner plate;

[0008] The first end of the first plate body is detachably provided with a fixing assembly, and the fixing assembly is detachably connected to the third plate body;

[0009] The fixing assembly includes: a fixing plate detachably arranged on the top end of the first plate body, a fixing frame fixedly arranged on the side wall of the fixing plate, and a locking member sequentially penetrating the fixing frame and the fixing plate.

[0010] Preferably, a first connecting plate is fixedly provided at the proximal end of the first plate body, and the first connecting plate is an arc-shaped plate structure.

[0011] More preferably, the proximal end of the first connecting plate is rotatably connected to the proximal end of the third connecting plate via a rotating shaft, and the third connecting plate is an arc-shaped plate structure.

[0012] Preferably, a second connecting plate is fixedly provided at the distal end of the first plate body, and the second connecting plate is an arc-shaped plate structure.

[0013] More preferably, the distal end of the second connecting plate is fixedly connected to the proximal end of the second plate body, and the second plate body is arranged perpendicular to the first plate body.

[0014] Preferably, a tip is fixedly provided at the distal end of the second plate body, and the length of the tip gradually decreases in a direction away from the second plate body.

[0015] Preferably, a positioning plate is fixedly provided at the distal end of the fourth connecting plate, and a through hole matching the locking member is opened at the distal end of the positioning plate.

[0016] More preferably, the locking member is provided with an external thread; and the inner wall of the through hole is provided with an internal thread.

[0017] More preferably, a through slot matching the positioning plate is opened in the middle of the fixing plate, and when the positioning plate is placed in the through slot, the positioning plate is vertically arranged to the first plate body.

[0018] Preferably, adhesive blocks are fixedly provided at the proximal end and the distal end of the fixing plate, and the adhesive blocks are detachably connected to the first plate body.

[0019] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0020] The positioning lamina retractor of the utility model is provided with a third plate body, and the outer plate and the inner plate are slid so that the length of the third plate body can be adjusted, which is convenient for use by different operators. The utility model is also provided with a fixing component so that the third plate body is fixedly connected with the fixing plate to prevent the operator from slipping when using it and causing damage to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a basic structural diagram of a positioning lamina hook in one embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a fixing assembly for positioning a lamina hook in one embodiment of the utility model;

[0023] Reference numerals in the figures include:

[0024] 1. First plate body; 11. First connecting plate; 12. Second connecting plate; 2. Second plate body; 21. Tip; 3. Third plate body; 31. Third connecting plate; 311. Rotating shaft; 32. Outer plate; 33. Inner plate; 34. Fourth connecting plate; 35. Positioning plate; 4. Fixing assembly; 41. Fixing plate; 42. Fixing frame; 43. Locking piece; 44. Adhesive block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0028] Example

[0029] like Figure 1-2 As shown, this embodiment provides a positioning lamina hook, comprising: a first plate body 1, a second plate body 2 whose proximal end is fixedly connected to the distal end of the first plate body 1, and a third plate body 3 whose first end is rotatably connected to the proximal end of the first plate body 1; wherein,

[0030] A first connecting plate 11 is fixedly provided at the proximal end of the first plate body 1, and the first connecting plate 11 is an arc-shaped plate-like structure; a second connecting plate 12 is fixedly provided at the distal end of the first plate body 1, and the second connecting plate 12 is an arc-shaped plate-like structure; the distal end of the second connecting plate 12 is fixedly connected to the proximal end of the second plate body 2, and the second plate body 2 is arranged perpendicular to the first plate body 1; a tip 21 is fixedly provided at the distal end of the second plate body 2, and the length of the tip 21 gradually decreases in the direction away from the second plate body 2.

[0031] The third plate body 3 comprises: a third connecting plate 31, an outer plate 32 whose proximal end is fixedly connected to the second end of the third connecting plate 31, an inner plate 33 whose proximal end is slidably connected to the distal end of the outer plate 32, and a fourth connecting plate 34 whose proximal end is fixedly connected to the distal end of the inner plate 33; the outer plate 32 is sleeved on the outer side of the inner plate 33; a positioning plate 35 is fixedly provided at the distal end of the fourth connecting plate 34; the proximal end of the first connecting plate 11 is rotatably connected to the proximal end of the third connecting plate 31 through a rotating shaft 311, and the third connecting plate 31 is an arc-shaped plate-like structure;

[0032] The first end of the first plate body 1 is detachably provided with a fixing assembly 4, and the fixing assembly 4 is detachably connected to the third plate body 3; the fixing assembly 4 comprises: a fixing plate 41 detachably provided at the first end of the first plate body 1, a fixing frame 42 fixedly provided at the side wall of the fixing plate 41, and a locking member 43 sequentially penetrating the fixing frame 42 and the fixing plate 41;

[0033] Among them, the proximal end and the distal end of the fixing plate 41 are fixedly provided with an adhesive block 44, and the adhesive block 44 is detachably connected to the first plate body 1; a through groove matching the positioning plate 35 is opened in the middle part of the fixing plate 41, and when the positioning plate 35 is placed in the through groove, the positioning plate 35 and the first plate body 1 are vertically arranged; a through hole matching the locking piece 43 is opened at the distal end of the positioning plate 35; the locking piece 43 is provided with an external thread; and the inner wall of the through hole is provided with an internal thread.

[0034] When in use, the operator puts his finger into the inner side of the first connecting plate 11, rotates the third connecting plate 31, slides the inner plate 33 to make the length suitable for the operator, places the fixing component 4 on the first plate body 1, rotates the third connecting plate 31 until the positioning plate 35 is placed in the through groove, and then rotates the locking piece 43. The locking piece 43 passes through the fixing plate 41 and the through hole and is threadedly connected to the positioning plate 35. The fixing plate 41 is adhered to the first plate body 1 through the adhesive block 44; the tip 21 is brought into contact with the patient's affected part to fix and position the spine of the affected part for easy subsequent operation.

[0035] In summary, the positioning lamina retractor of the present invention is provided with a third plate body, and the outer plate and the inner plate are slid so that the length of the third plate body can be adjusted, which is convenient for use by different operators. The present invention is also provided with a fixing component, so that the third plate body is fixedly connected to the fixing plate to prevent the operator from slipping when using it and causing injury to the patient.

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning lamina retractor, characterized in that: include: A first plate body (1), a second plate body (2) whose proximal end is fixedly connected to the distal end of the first plate body (1), and a third plate body (3) whose first end is rotatably connected to the proximal end of the first plate body (1); wherein, The third plate body (3) comprises: a third connecting plate (31), an outer plate (32) whose proximal end is fixedly connected to the second end of the third connecting plate (31), an inner plate (33) whose proximal end is slidably connected to the distal end of the outer plate (32), and a fourth connecting plate (34) whose proximal end is fixedly connected to the distal end of the inner plate (33); the outer plate (32) is sleeved on the outer side of the inner plate (33); A fixing assembly (4) is detachably provided at the top end of the first plate body (1), and the fixing assembly (4) is detachably connected to the third plate body (3); The fixing assembly (4) comprises: a fixing plate (41) detachably arranged on the top end of the first plate body (1), a fixing frame (42) fixedly arranged on the side wall of the fixing plate (41), and a locking member (43) sequentially penetrating the fixing frame (42) and the fixing plate (41).

2. The positioning lamina hook according to claim 1, characterized in that: A first connecting plate (11) is fixedly provided at the proximal end of the first plate body (1), and the first connecting plate (11) is an arc-shaped plate structure.

3. The positioning lamina hook according to claim 2, characterized in that: The proximal end of the first connecting plate (11) is rotatably connected to the proximal end of the third connecting plate (31) via a rotating shaft (311), and the third connecting plate (31) is an arc-shaped plate structure.

4. The positioning lamina hook according to claim 1, characterized in that: A second connecting plate (12) is fixedly provided at the distal end of the first plate body (1), and the second connecting plate (12) is an arc-shaped plate structure.

5. The positioning lamina hook according to claim 4, characterized in that: The distal end of the second connecting plate (12) is fixedly connected to the proximal end of the second plate body (2), and the second plate body (2) is arranged perpendicular to the first plate body (1).

6. The positioning lamina hook according to claim 1, characterized in that: A tip (21) is fixedly provided at the distal end of the second plate body (2), and the length of the tip (21) gradually decreases in a direction away from the second plate body (2).

7. The positioning lamina hook according to claim 1, characterized in that: A positioning plate (35) is fixedly provided at the distal end of the fourth connecting plate (34), and a through hole matching the locking member (43) is opened at the distal end of the positioning plate (35).

8. The positioning lamina hook according to claim 7, characterized in that: The locking member (43) is provided with an external thread; and the inner wall of the through hole is provided with an internal thread.

9. The positioning lamina hook according to claim 7, characterized in that: A through slot matching the positioning plate (35) is provided in the middle of the fixing plate (41); when the positioning plate (35) is placed in the through slot, the positioning plate (35) and the first plate body (1) are arranged vertically.

10. The positioning lamina hook according to claim 1, characterized in that: The proximal end of the fixing plate (41) and the distal end of the fixing plate (41) are both fixedly provided with an adhesive block (44), and the adhesive block (44) is detachably connected to the first plate body (1).

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