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Sleeve puncture outfit

A trocar and cannula technology, applied in the direction of trocars, puncture needles, puncture needles, etc., can solve the problems of poor sealing components and other problems

Active Publication Date: 2021-10-01
NINGBO XINWELL MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are still many problems in the existing trocar structure, for example, the sealing component is not effective, so further improvement is needed

Method used

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  • Sleeve puncture outfit
  • Sleeve puncture outfit
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Experimental program
Comparison scheme
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Embodiment Construction

[0050] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and genera...

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PUM

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Abstract

A sleeve puncture outfit comprises a sleeve assembly and a puncture needle assembly. The sleeve assembly includes a sleeve body, a supporting frame, a sealing piece, and a fluid control valve. The supporting frame is provided with a convex part arranged in the inserting or pulling-out direction of an inserting tool. The sealing piece is provided with a concave part corresponding to the convex part. The convex part is inserted into the concave cavity of the concave part, and a gap is formed between the cavity wall of at least one side of the concave cavity and the convex part, so that the concave part can move relative to the convex part to adjust the position, and the concave part of the sealing element can generate relative displacement with the convex part under the acting force of an insertion tool when the insertion tool is inserted and pulled out; therefore, the deformation better fitting the inserting tool is generated. The sleeve body is further provided with a first fluid channel communicated with the insertion cavity and used for allowing fluid to flow in and out of the insertion cavity, and the fluid control valve is connected with the first fluid channel and used for injecting gas into the abdominal cavity, leading the gas in the abdominal cavity out of the body or flushing the abdominal cavity during an operation.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a cannula puncturer. Background technique [0002] In human minimally invasive medical surgery, once a lesion is found in the human body, surgery or resection is required. During the operation, the first thing to be used is a trocar, which is a surgical instrument that pierces the abdominal wall and provides a passage for other surgical instruments to enter the body cavity, and belongs to a minimally invasive surgical instrument. The trocar generally includes a cannula assembly serving as an access channel for other surgical instruments and a puncture needle assembly passing through the cannula assembly. During the operation, in order to penetrate the skin, the epidermis of the skin is first cut open with a scalpel, and then the puncture needle assembly is used to penetrate the skin and enter the body cavity together with the sleeve main body. Then the puncture needle a...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/34A61B17/3415A61B17/3423A61B17/3474A61B17/3498A61B2017/3419A61B2217/007Y02A50/30
Inventor 虞杰伟
Owner NINGBO XINWELL MEDICAL TECH CO LTD