Multi-dimensional scraper

Abstract

A multi-dimensional scraper comprises a movable scraper head 1, a fixed scraper head 2, a scraper head supporting rod 3, a sliding scraper rod 4, an angle rotating sleeve 5, a connecting rod 6 and a handle 7, the handle 7 is fixed on the connecting rod 6, the connecting rod 6 and the scraper head supporting rod 3 are fixed, the scraper head supporting rod 3 is fixed with the fixed scraper head 2 through a pin, the fixed scraper head 2 is connected with the movable scraper head 1 through a movable pin, and the angle rotating sleeve 5 is sleeved on the angle rotating sleeve 5. The sliding cutter bar 4 is buckled together through a sliding block of the cutter head supporting rod 3, the head portion of the sliding cutter bar 4 is connected with the movable cutter head 1 through a sliding pin, the unique design is that the cutter bars are driven by the angle rotating sleeve to flexibly ascend and descend, the cutter head is driven to achieve plane rotation and up-down overturning, and the flexibility and accuracy of surgical operation are greatly improved. Redundant tissues of the upper intervertebral disc and the lower intervertebral disc can be completely covered and efficiently removed only through one tool, the operation efficiency is remarkably improved, the moving state of the tool bit is visually displayed at the handle, immediate judgment and adjustment in the operation are facilitated, and safety and smoothness of the operation process are guaranteed.

Description

Technical Field

[0001] The utility model is a multi-dimensional scraper, belonging to the technical field of bone surgery, in particular to a surgical tool for intervertebral disc resection, providing a technology for visual adjustment and scheduling in vitro. Background Art

[0002] During orthopedic disc surgery, unused or necrotic discs are first cut away with a cutter, and then the excess discs above and below are scraped or ground away with various appropriate tools using a scraper to create a suitable space for the fusion cage. Operators often need to use scrapers at different angles depending on the surgical site and angle, which not only increases the time for surgical preparation but also increases the complexity and risk of tool replacement during surgery. Furthermore, if the scraper is misplaced during surgery and scrapes the nerve roots of the spine, it can cause lifelong disability to the patient. Therefore, there is an urgent need for a multi-angle scraper that can flexibly adjust the angle and improve surgical visualization. Summary of the Invention

[0003] The present invention aims to provide a multi-dimensional scraper, which can solve the trouble of frequently changing scrapers of different angles when scraping different parts in orthopedic intervertebral disc surgery, while improving the visual effect of the surgical process.

[0004] This new multi-dimensional scraper mainly includes the following parts:

[0005] The movable cutter head 1, the fixed cutter head 2, the cutter head support rod 3, the sliding cutter rod 4, the angle rotation sleeve 5, the connecting rod 6, and the handle 7 are composed, wherein the handle 7 is fixed on the connecting rod 6, the connecting rod 6 and the cutter head support rod 3 are fixed, the cutter head support rod 3 is fixed to the fixed cutter head 2 through a pin, the fixed cutter head 2 is connected to the movable cutter head 1 through a movable pin, the sliding cutter rod 4 is buckled together through the slider of the cutter head support rod 3, and the head is connected to the movable cutter head 1 through a sliding pin. It is characterized in that the cutter head support rod 3 is a rectangular rod with several rectangular raised key pins, the sliding cutter rod 4 has several corresponding key slots, the length of which is twice that of the key pin, the sliding cutter rod 4 is buckled with the cutter head support rod 3, and the angle rotation sleeve 5 is sleeved on the cutter head support rod 3. The rod 3 and one end of the sliding knife rod 4, the rotating angle rotating sleeve 5 drives the sliding knife rod 4 to move up and down, the raised key pin on the knife head support rod 3 moves up and down in the key groove of the sliding knife rod 4, one end of the sliding knife rod 4 is fixedly connected to the fixed knife head 2 by a pin, and the fixed knife head 2 is slidingly connected to the knife head support rod 3 by a sliding pin. When the sliding knife rod 4 moves up and down, it drives the knife head to rotate in a plane within the range of 0-80 degrees. The outer shell end of the angle rotating sleeve 5 is engraved with 0-20-40-60-80 degree markings. The operator can adjust the angle of the knife head at any time according to the requirements of the surgical plan. At the same time, there is an indicator mark of the knife head rotation direction on the sliding knife rod 4, and the operator can easily obtain the direction of rotation and the degree of rotation of the knife head from the outside.

[0006] Furthermore, the movable cutter head 1 is connected to the fixed cutter head 2 through a 12-edge pin, both ends of the 12-edge pin are fixed on the movable cutter head 1, and there are 12-edge holes in the movable cutter head 1 that are connected to the 12-edge pin and can be rotated. The 12-edge pin is fixed to the fixed cutter head 2, and only the movable cutter head 1 needs to be rotated each time to realize the rotation of the cutter head.

[0007] The utility model has the following advantages:

[0008] Flexible adjustment of angle: The utility model can achieve flexible adjustment of the scraper angle by rotating the angle rotating sleeve 5, eliminating the need to frequently replace scrapers with different angles, thereby improving surgical efficiency.

[0009] Improve surgical accuracy: The design of the angle indicator and locking mechanism enables the operator to accurately judge and adjust the position and direction of the blade, thereby improving the accuracy and safety of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the axonometric structure of the present utility model.

[0011] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0012] Figure 3 This is a schematic diagram of the 0-degree structure in the plane of the utility model.

[0013] Figure 4 This is a schematic diagram of the structure of the utility model that rotates 60 degrees in a plane.

[0014] Figure 5 This is a schematic diagram of the movable cutter head 1 rotating up and down in the present invention. DETAILED DESCRIPTION

[0015] The operation of the present invention is described as follows with reference to the accompanying drawings:

[0016] When performing intervertebral disc surgery, the unwanted part of the intervertebral disc is first removed. After the removal, there is some space in the upper and lower intervertebral discs. When the upper and lower intervertebral discs need to be completely removed, the new tool is used. One hand holds the handle 7, and the other hand rotates the angle rotating sleeve 5 to adjust the angle and the left and right rotation of the cutter head according to the situation. When the angle rotating sleeve 5 is rotated, the sliding groove of the sliding knife rod 4 is driven to move up and down on the key pin of the cutter head support rod 3. When the sliding knife rod 4 moves upward, it drives the fixed cutter head 2 to rotate the angle in the plane. The angle size is displayed on the outer end of the angle rotating sleeve 5 for the convenience of the operator to observe. When it is necessary to scrape off the excess tissue on the surface of the upper or lower intervertebral disc away from the nerve root, the angle rotating sleeve 5 is rotated to the 0 degree mark. Figure 3When it is necessary to scrape the intervertebral disc tissue near the nerve root, adjust the angle adjustment sleeve 5 to a certain angle to bypass the nerve root. According to the indicator on the sliding knife rod 4, the direction of the knife head rotation angle can be clearly seen. According to the image display, reasonable operation is performed. The angle adjustment style is as follows: Figure 4 When you need to scrape off excess tissue at a certain point, you only need to rotate the blade up and down a little to adjust the scraper head to Figure 5 style, and perform targeted scraping at a certain point.

Claims

1. A multi-dimensional scraper is composed of a movable blade head (1), a fixed blade head (2), a blade head support rod (3), a sliding blade rod (4), an angle rotating sleeve (5), a connecting rod (6), and a handle (7), wherein the blade head The support rod (3) is a rectangular rod with several rectangular protruding key pins. The sliding knife rod (4) has several corresponding key slots, the length of which is twice that of the key pins. The sliding knife rod (4) is buckled with the cutter head support rod (3). The angle rotation sleeve (5) is sleeved on one end of the cutter head support rod (3) and the sliding knife rod (4). The rotation of the angle rotation sleeve (5) drives the sliding knife rod (4) to move up and down. The protruding key pins on the cutter head support rod (3) move up and down in the key slots of the sliding knife rod (4). One end of the sliding knife rod (4) is connected to the fixed cutter head. (2) The fixed connection is made by a pin, and the fixed blade head (2) is slidably connected to the blade head support rod (3) by a sliding pin. When the sliding blade rod (4) moves up and down, the blade head is driven to rotate in a plane within the range of 0-80 degrees. The end of the shell of the angle rotation sleeve (5) is engraved with a mark of 0-20-40-60-80 degrees. The operator can adjust the angle of the blade head at any time according to the requirements of the surgical plan. At the same time, there is an indicator mark on the sliding blade rod (4) for the direction of blade head rotation. The operator can easily obtain the direction and degree of blade head rotation from the outside.

2. A multi-dimensional scraper according to claim 1, characterized in that: The movable cutter head (1) is connected to the fixed cutter head (2) through a 12-edge pin. Both ends of the 12-edge pin are fixed on the movable cutter head (1). The movable cutter head (1) has a 12-edge hole connected to the 12-edge pin and can rotate. The 12-edge pin is fixed to the fixed cutter head (2). Each time, the movable cutter head (1) only needs to be rotated to realize the rotation of the cutter head.

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