Medical planing grinding head

A grinding and planing technology, which is applied in the fields of medical science and surgery, can solve the problems of reduced surgical efficiency, unstable field of vision in the surgical area, overflow of lavage fluid, etc., to improve surgical efficiency, increase surgical safety, and facilitate operation Effect

Pending Publication Date: 2018-12-07
上海利格泰医用设备有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Limited by the current technology, when performing arthroscopic joint debridement surgery, a certain pressure of lavage fluid must be continuously injected into the surgical area to ensure the surgical field of view and also have a certain cooling effect. Therefore, different inner knives are used when replacing It is e

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Examples:

[0025] Step 1: After examining the joint with arthroscopy, insert the outer knife into the lesion to be removed.

[0026] Step 2: Put the inner knife into the outer knife and make sure that the head of the inner knife can be completely exposed (such as Figure 5 ), and remove the joint lesions.

[0027] Step 3: Take out the used inner knife from the outer knife (such as figure 1 ).

[0028] Step 4: Use the plug 2 to block the nozzle of the outer knife tube to prevent overflow of the lavage fluid (such as Image 6 ).

[0029] Step 5: Remove the plug 2 and install the replacement inner knife into the outer knife tube 12.

[0030] Compared with the existing technology, after designing the plug for the planing cutter head, it can replace the inner cutter to block the outer cutter tube when replacing the inner cutter during the operation, ensuring that the lavage fluid will not overflow from the outer cutter tube, and at the same time The vent hole designed in the plug ca...

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Abstract

The invention provides a medical planing grinding head. The medical planing grinding head comprises a planing tool inner knife, a planing tool outer knife and a plug; the planing tool outer knife is provided with an assembly end and an outer knife tube, a center channel runs through the assembly end and the outer knife tube, the planing tool inner knife detachably penetrates into the center channel, and the plug is detachably connected to the assembly end to form seal at the end of the center channel. Compared with the prior art, the plug designed for the planing tool head can replace the inner knife to plug the outer knife tube when the inner knife is replaced in an operation, it is ensured that lavage fluid will not overflow from the outer knife tube, through small air-discharging holesdesigned in the plug, air in an operation region can be discharged, and it is avoided that since a lot of air bubbles are mixed into the lavage fluid, the visual field resolution of the operation region is decreased; with the open structure of the head of the outer knife, all-directional grinding is realized, and operation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to a medical planer grinding head. Background technique [0002] At present, it is still one of the main methods to treat osteoarthritis by using a planer to remove the osteophytes located at the edge of the cartilage and colliding with the articular surface in the arthroscopic surgery. The key steps of arthroscopic joint debridement are to first make a small incision at the diseased joint, and establish a channel for surgical instruments to enter, and then use a planer to resect the diseased part of the joint through this channel. Lesions in different positions can be treated with different cutter heads. [0003] Limited by the current technology, when performing arthroscopic joint debridement surgery, a certain pressure of lavage fluid must be continuously injected into the surgical area to ensure the surgical field of view and also have a certain cooling effect. Ther...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/1659A61B2017/1602
Inventor 赖卫国陈智俞威金远挺
Owner 上海利格泰医用设备有限公司
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