Indwelling needle with infusion channel with variable radial size

A radial size, indwelling needle technology, applied in the field of indwelling needles, can solve the problems of high puncture operation requirements, increased patient pain, and strong pain in patients

Inactive Publication Date: 2020-10-30
BEIJING TIANTAN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
View PDF13 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems that multiple indwelling needles need to be placed in order to ensure the safety of the operation during the clinical operation, which will increase the pain of the patient, and that the indwe

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Indwelling needle with infusion channel with variable radial size
  • Indwelling needle with infusion channel with variable radial size
  • Indwelling needle with infusion channel with variable radial size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Some structures are not shown in the accompanying drawings, and those skilled in the art can derive them from the content of the present invention.

[0035] The present invention only elaborates on the parts that have been specifically improved. For example, as long as the material of each part meets the requirements of the present invention, it can be made from available medical materials on the market, so it is not specifically limited here; Other parts that can be directly obtained by those skilled in the art based on the prior art will not be specifically described here.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpos...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an indwelling needle with an infusion channel with a variable radial size, which comprises an indwelling catheter assembly and a puncture needle assembly, and is characterizedin that the indwelling catheter assembly comprises an indwelling base and a hollow indwelling catheter arranged at a first end of the indwelling base and communicated with the indwelling base; the puncture needle assembly comprises a puncture needle body and a puncture needle base arranged at one end of the puncture needle body. The other end of the puncture needle body is a puncture end, and thepuncture end enters from the second end of the indwelling base and penetrates out from the orifice of the indwelling catheter; the first end of the indwelling base is communicated with the second endof the indwelling base; wherein the hollow part of the indwelling catheter is an infusion channel through which infusion liquid flows in the using process of the indwelling needle, and in the indwelling process, the radial size of the infusion channel can be increased. According to the indwelling needle with the infusion channel with the variable radial size, the puncture pain of a user can be reduced; in the operation process, the function of rapidly supplementing liquid can be achieved by enlarging the infusion channel.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an indwelling needle whose radial dimension of an infusion channel can be enlarged. Background technique [0002] Surgery is a very common traumatic operation in clinical practice. Bleeding usually occurs during the treatment process. The more complex the operation, the more bleeding. However, the total circulating blood volume of the human body only accounts for 7%-8% of body weight. Therefore, in order to ensure the safety of patients during the operation, fluid supplementation must be carried out during the operation to ensure the necessary circulating blood volume of the human body. The existing supplementary method is generally infusion. Generally speaking, the indwelling needle is inserted into the blood vessel, and then the liquid is injected into the patient's body through the catheter and the indwelling needle by gravity or external force. Then the a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B17/34
CPCA61B17/34A61B17/3403A61B17/3415A61B17/3496
Inventor 刘力玮王鹏宇孟小娟
Owner BEIJING TIANTAN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap