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Trocars

A trocar and outer cannula technology, applied in the field of trocars, can solve the problems of poor use effect and easy damage to blood vessels and tissues by the puncture needle, and achieve the effects of easy operation, avoiding damage to blood vessels and tissues, and reducing troubles

Inactive Publication Date: 2009-06-24
龙秀玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, after successful puncture with the needle used for hemodialysis, when the puncture side limb changes slightly, the puncture needle will easily damage blood vessels and tissues. Pain to the patient, poor use effect

Method used

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  • Trocars

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0009] A trocar such as figure 1 As shown, the needle core 7 is included, the needle core 7 is covered with a needle tube 6, the needle core 7 corresponds to the needle tube 6, the right end of the needle core 7 is fixedly connected with an inner cannula 4, the needle core 7 communicates with the inner cannula 4, and the inner The casing 4 is covered with an outer casing 5, the outer casing 5 is connected with the right end of the needle tube 6, the outer casing 5 and the needle tube 6 are integral, the outer casing 5 is communicated with the needle tube 6, and the outer surface of the right end of the needle tube 6 is designed with a needle wing 1, The outer sleeve of the outer sleeve 5 is covered with a clip 2, the right end of the outer sleeve 5 is provided with a nut 3, the inner sleeve 4 is as long as the outer sleeve 5, and the needle tub...

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PUM

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Abstract

The invention relates to a trocar with good effect, which comprises a needle core and a needle tube sleeved outside the needle core, wherein the needle core is corresponding to the needle tube; the right end of the needle core is fixedly connected with an inner cannula; the needle core is communicated with the inner cannula; an outer cannula is sleeved outside the inner cannula; the outer cannula is connected with the right end of the needle tube, integrated with the needle tube, and communicated with the needle tube; the outer surface at the right end of the needle tube is designed with a needle wing; a clip is sleeved outside the outer cannula; the right end of the outer cannula is provided with a nut; the inner cannula is longer than the outer cannula; the needle tube is a soft tube; and the right port of the inner cannula is designed with a dust cap.

Description

technical field [0001] The present invention relates to a medical product, in particular to a trocar. Background technique [0002] At present, after the successful puncture of the hemodialysis needle, when the limb on the punctured side is slightly changed, the puncture needle is easy to damage the blood vessels and tissues. Sometimes the limb needs to be in a fixed position, but it is easy to make the patient feel fatigued. The patient brings pain, and the use effect is poor. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a trocar with good use effect. [0004] In order to achieve the above purpose, the technical scheme adopted in the present invention is: a trocar, comprising a needle core, a needle tube is sleeved on the outside of the needle core, and the needle core corresponds to the needle tube, and is characterized in that the right end of the needle core is fixedly connected There is an inner cannula, the core of the needle...

Claims

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Application Information

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IPC IPC(8): A61B17/34
Inventor 龙秀玲马昊马兰
Owner 龙秀玲