Brush type medical planing cutter

Abstract

The utility model is applicable to the technical field of medical instruments, and provides a brush type medical planing cutter, which comprises an outer cutter tube and an inner cutter tube, the front end of the outer cutter tube is provided with an oblique incision, the inner cutter tube is respectively provided with a brush rod, a conical head and an inner tube from front to back, bristles are densely arranged on the surface of the brush rod, the conical head is provided with a suction inlet, and the suction inlet is communicated with the inner tube. The inner tube is of a hollow structure and is communicated with the suction inlet, and the head end of the brush rod extends out of the oblique notch of the outer knife tube. In the structural design, the brush part composed of the brush rod and the bristles rotates at a high speed, so that joint surface tissues can be cleaned, and joints cannot be damaged; secondly, the inner knife tube adopts a lengthened design, and the whole bristles are exposed out of an inclined notch, so that a larger area can be quickly treated, and the efficiency is improved; and thirdly, in the structure, the brush rod is exposed out of the front end of the outer knife tube, a bristle part at the front end of the brush rod can be used for processing local special parts, the angle is not limited, and the operation effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of surgical instruments, in particular to a brush-type medical planing tool. Background Art

[0002] Arthroscopic knee debridement is an advanced minimally invasive surgical procedure widely used both domestically and internationally. Using an arthroscope, a powered planing system, and other specialized surgical instruments, surgeons can meticulously observe the internal structure of the joint and precisely remove diseased tissue, restoring a smooth joint surface and effectively eliminating factors that cause pain and joint mobility impairment. Compared to traditional open surgery, arthroscopic knee surgery is less invasive and allows patients to recover faster, allowing them to begin rehabilitation training earlier.

[0003] With the increasing popularity of arthroscopic surgery, powered planing systems have rapidly developed and evolved. These systems consist of a handle and a planing tool, with the latter comprising an outer and inner blade tubes. The inner blade tube rotates relative to the outer tube to excise the target area, while a vacuum system removes debris through a chip removal window.

[0004] Planing tools are primarily divided into two types: planers for soft tissue removal and grinding heads for bone processing. These tools generally feature a circular or curved design, and to protect surrounding healthy tissue, the cutting window is typically located on one side. However, in actual clinical practice, due to the complex anatomy of the human body, especially for patients with rheumatoid arthritis, gouty synovitis, or periprosthetic joint infections, existing planing tools are relatively sharp, and the process of clearing diseased tissue can inevitably damage articular cartilage or joint prostheses. Furthermore, because the cutting window is small and limited to one side, it is difficult to conform to the cartilage surface or access narrow compartments. Utility Model Content

[0005] In view of the above problems, the purpose of the present invention is to provide a brush-type medical shaver to solve the above technical problems.

[0006] The utility model adopts the following technical solutions:

[0007] The brush-type medical shaver tool includes an outer blade tube and an inner blade tube. The front end of the outer blade tube has an oblique cut. The inner blade tube consists of a brush rod, a conical head and an inner tube from front to back. The surface of the brush rod is densely covered with bristles. The conical head has a suction port. The inner tube is a hollow structure and is connected to the suction port. The head end of the brush rod extends out of the oblique cut of the outer blade tube.

[0008] Furthermore, the top end of the brush rod is a hemispherical surface, and bristles are provided on the surface of the brush rod and the hemispherical surface.

[0009] Furthermore, the ends of the bristles are blunt.

[0010] Furthermore, the diameter of the brush rod is smaller than that of the inner tube, and the overall diameter of the bristles formed on the surface matches the diameter of the inner tube.

[0011] The beneficial effects of the present utility model are as follows: the planing tool is designed in the form of a brush. First, the front end of the inner knife tube is a brush part composed of a brush rod and bristles. The bristles have no blades. The high-speed rotation of the brush part can realize the cleaning of infected tissue on the joint surface without injuring the joint; secondly, the inner knife tube adopts an extended design, the brush rod extends out of the front end of the inner knife tube, and the bristles are exposed to the oblique cut as a whole, so a larger area can be processed quickly, thereby improving efficiency; thirdly, the front end of the existing inner knife tube is all arranged in the oblique cut, so it can only be held in one direction with the oblique cut facing downward, and smaller parts cannot be processed. In this structure, the brush rod is exposed to the front end of the outer knife tube. Therefore, for local special parts, the bristle part at the front end of the brush rod can be used for processing, without limiting the angle, and the operating effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of a brush-type medical planing tool;

[0013] Figure 2 It is the structural diagram of the inner knife tube;

[0014] Figure 3 It is a cross-sectional view of the inner knife tube. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] In order to illustrate the technical solution of the present invention, specific embodiments are provided below.

[0017] like Figure 1-3 As shown, the brush-type medical shaver provided in this embodiment includes an outer knife tube 1 and an inner knife tube 2. The front end of the outer knife tube 1 has an oblique cut 11, and the inner knife tube 2 is composed of a brush rod 21, a conical head 22 and an inner tube 23 from front to back. The surface of the brush rod 21 is densely covered with bristles 24, and the conical head 22 has a suction port 25. The inner tube 23 is a hollow structure and is connected to the suction port 25. The head end of the brush rod 21 extends out of the oblique cut of the outer knife tube 1.

[0018] The difference between this structure and the existing planing tools lies in the structural design of the inner blade tube. The inner blade tube structure of this embodiment includes a brush rod, a conical head and an inner tube, and the brush rod surface has bristles. The planing tool is combined with a power planing handle. The power planing handle is a prior art and will not be described here. The power planing handle is used to drive the inner blade tube to rotate at high speed, thereby driving the bristles of the brush rod to rotate, thereby cleaning the joint surface tissue. For patients with rheumatoid arthritis, gouty synovitis or infection around artificial joint prostheses, the existing planing tools are relatively sharp. In this embodiment, the bristles are relatively soft in texture, and the ends of the bristles are blunt, which will not damage the articular cartilage or joint prosthesis during the cleaning of the diseased tissue.

[0019] Moreover, the inner blade tube adopts an extended design, extending out from the front end of the inner blade tube, and the top end of the brush rod is a hemispherical surface, and bristles are provided on the surface and hemispherical surface of the brush rod. In the figure, the diameter of the brush rod is smaller than that of the inner tube, and the overall diameter of the bristles formed on the surface matches the diameter of the inner tube. The bristles are exposed at the bevel cut, so a larger area can be processed quickly, improving efficiency. In addition, the existing planing blade head is only provided in the bevel cut, so it can only be held in one direction with the bevel cut facing downward, and special parts cannot be processed, such as fitting cartilage surfaces or probing narrow compartments. In this structure, the brush rod is exposed at the front end of the outer blade tube, and special parts can be processed with bristles at the end, without limiting the operating angle, and the operation and processing effects are better.

[0020] This product is used as follows: First, rinse the joint with continuous water. Then, the inner blade tube rotates, and the bristles clean the target area and diseased tissue. The resulting abrasive debris is drawn into the inner tube through the suction port of the conical head by the negative pressure water and finally sucked out. The existing structure of the inner tube's negative pressure aspiration of abrasive debris is not detailed here.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A brush-type medical planing tool, comprising an outer blade tube and an inner blade tube, wherein the front end of the outer blade tube has an oblique cut, characterized in that: The inner knife tube consists of a brush rod, a conical head and an inner tube from front to back. The surface of the brush rod is densely covered with bristles. The conical head has a suction port. The inner tube is a hollow structure and is connected to the suction port. The head end of the brush rod extends out of the oblique cut of the outer knife tube.

2. The brush-type medical shaver according to claim 1, characterized in that: The top end of the brush rod is a hemispherical surface, and bristles are provided on the surface of the brush rod and the hemispherical surface.

3. The brush-type medical shaver according to claim 2, characterized in that: The ends of the bristles are blunt.

4. The brush-type medical shaver according to claim 3, characterized in that: The diameter of the brush rod is smaller than that of the inner tube, and the overall diameter of the bristles formed on the surface matches the diameter of the inner tube.

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