Skin perforation blunt needle device

A blunt needle and skin technology, applied in the field of skin perforation blunt needle device, can solve the problems of nerve paralysis, blood vessel rupture, easy to puncture patients, etc., and achieve the effect of preventing pollution and good puncture force

Pending Publication Date: 2022-03-25
南京普立蒙医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This conventional needle is very easy to pierce the patient's subcutaneous tissue, such as blood vessels, tiny blood vessels, subcutaneous glands, especially the subcutaneous nervous system, which may cause serious consequences, such as blood vessel rupture or even nerve paralysis, etc., this problem needs to be solved

Method used

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  • Skin perforation blunt needle device
  • Skin perforation blunt needle device
  • Skin perforation blunt needle device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The invention discloses a blunt needle device for skin perforation, which comprises a stainless steel needle tube 1, a handle 6 and a needle tube protective cover. One end of the stainless steel needle tube 1 is fixed on the handle 6, and the other end is a puncture needle. The needle tube protective sleeve (not shown in the figure) is sleeved on the outside of the needle tube and tightly covered on the handle 6 . The end of the stainless steel needle tube 1 away from the handle 6 is set as a hemispherical blade surface 2, and the top of the spherical surface of the stainless steel needle tube 1 is provided with a concave knife edge 4, and the concave knife edge 4 forms an acute angle of 10°-80° with the central axis of the needle tube. The hemispherical blade surface 2 replaces the pointed and sharp angle shape of the known puncture needle, and the concave knife-edge blade 4 is used as a knife-edge for cutting the skin, and the stainless steel needle tube 1 is smoothly ...

Embodiment 2

[0027] The present invention discloses a blunt needle device for skin perforation. The difference between this embodiment and Embodiment 1 is that: On the basis of the structure of Embodiment 1, this embodiment is provided with a fixed ring 7 outside the handle 6, and the fixed ring 7 is connected with The flexible elastic cord 71 is provided with a silicone sleeve 72 at the end of the flexible elastic cord 71 away from the fixing ring 7 , and the flexible elastic cord 71 and the silicone sleeve 72 are integrally formed. In this embodiment, the fixing ring 7 may be fixed outside the handle 6 by colloid, or may be detachably installed on the handle 6 . The silicone sleeve 72 is sleeved on the stainless steel needle tube 1 and has an interference fit with the stainless steel needle tube 1 . Due to the unique material of the silicone sleeve 72 , when the silicone sleeve 72 is slid along the silicone sleeve 72 , resistance will be generated, thereby achieving the effect of limitin...

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PUM

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Abstract

The invention discloses a skin perforation blunt needle device, relates to the technical field of medical instruments, and aims to solve the problems that in the prior art, a conventional needle head is used as a buried line, subcutaneous tissue of a patient is easily punctured, and potential safety hazards exist. According to the technical scheme, the syringe is characterized by comprising a stainless steel needle tube, a handle and a needle tube protective sleeve, the stainless steel needle tube is fixed to the handle, and the needle tube protective sleeve is arranged outside the needle tube and tightly covers the handle; one end, far away from the handle, of the stainless steel needle tube is provided with a hemispherical blade surface, the top of the spherical surface of the stainless steel needle tube is provided with a concave knife edge blade, the concave knife edge blade and the central axis of the needle tube form an acute angle of 10-80 degrees, the hemispherical blade surface is provided with an inclined surface, the inclined surface and the central axis of the needle tube form an included angle of 10-50 degrees, and the vertex of the included angle is close to the top of the spherical surface; the stainless steel needle tube is provided with a groove located at the bottom of the inwards-concave knife edge, and the groove is communicated with the stainless steel needle tube. According to the invention, the risk of puncturing subcutaneous tissues and blood capillaries is effectively reduced in terms of puncture force.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a blunt needle device for skin perforation. Background technique [0002] At present, most of the needles used for plastic embedding are common injection needles. This conventional needle is very easy to pierce the patient's subcutaneous tissue, such as blood vessels, microvessels, subcutaneous glands, especially the subcutaneous nervous system, which may cause serious consequences, such as blood vessel rupture or even nerve paralysis. This problem needs to be solved. Contents of the invention [0003] The object of the present invention is to provide a blunt needle device for skin puncture, which has the effect of improving the safety of skin puncture operation. [0004] Above-mentioned purpose of the invention of the present invention is achieved through the following technical solutions: [0005] A blunt needle device for skin perforation, comprising a stainles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61F2/00
CPCA61B17/34A61B17/3417A61B17/3494A61F2/0059A61B2017/3454
Inventor 刘平金超张乃保
Owner 南京普立蒙医疗科技有限公司
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