Deep vein puncture device

A deep vein and sheath technology, applied in the field of medical instruments, can solve the problems of life-threatening, damaged arteries, difficulty in breathing, etc., and achieve the effect of simple operation and reducing damage

Inactive Publication Date: 2007-10-24
袁福利 +1
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, in clinical application, the probability of accidentally injuring an artery during puncture is as high as 5% to 20%. If an artery is accidentally injured during puncture, it can cause local severe hematoma, and even lead to hemorrhagic shock or compression of lung tissue, causing dyspne

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
  • Deep vein puncture device
  • Deep vein puncture device
  • Deep vein puncture device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Referring to FIG. 1 , a deep vein puncture device 100 commonly used in the prior art includes a puncture needle 102 , a hollow beveled needle tip 101 , and a tail 103 that can receive a syringe. During operation, a syringe (not shown) is connected to the tail 103, and the deep vein puncture device 100 is pushed forward so that the hollow bevel needle tip 101 penetrates the skin. During the puncture, the syringe is sucked to observe whether there is blood sucked out. If no blood is sucked out, it indicates that the needle tip 101 has not penetrated the blood vessel; if the blood is sucked out, the needle tip 101 has penetrated the blood vessel. At this time, by observing the color of the blood or detecting the blood pressure, it is confirmed whether the puncture is the target vein. If so, put the guide wire (not shown) into the target vein through the lumen of the puncture needle, withdraw the puncture needle, place the dilator (not shown) along the guide wire, withdraw t...

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

PropertyMeasurementUnit
Outer diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a deep vein puncture device, comprising internal needle and sheath. It is characterized in that: the tip end of internal needle is nib, there is side pore and inactive separated vessel wall, the external diameter of internal needle is small, about 0. 1-0. 5 mm (when the external diameter is 0. 5mm, the cross-sectional area is 14. 8% of that of normal 18 G deep vein puncture needle, and the blood amount is 2. 19% of that of normal 18 G puncture needle at the same time), so the injury is greatly reduced; the sheath is shorter than internal needle, and is equipped with conical tip and side pore. When the tip end of internal needle punctures into deep vein, the sheath can be conveyed to vein along internal needle, the steel silk is conveyed to deep vein through sheath cavity and side pore. the invention is characterized by simple, accurate and safe operation. The outer wall of internal needle and sheath are equipped with scale, which is helpful to determine the needle depth, and are also equipped with end that connects injector.

Description

technical field [0001] The invention relates to a medical instrument, in particular to a deep vein puncture device. Background technique [0002] Deep venous puncture to place a deep venous catheter is an important way for rapid blood transfusion, infusion, intravenous nutritional support, and monitoring of central venous pressure. Commonly used deep vein puncture methods include subclavian vein puncture and internal jugular vein puncture. Among these puncture methods, an 18G deep vein puncture needle is usually used, the tip of this type of deep vein puncture needle is hollow and bevel-shaped, and the outer diameter is about 1.3 mm. When puncturing, the bevel-shaped hollow tip cuts the skin and the blood vessel wall, so there is a large trauma to the human body. Moreover, in clinical application, the probability of accidentally injuring an artery during puncture is as high as 5% to 20%. If an artery is accidentally injured during puncture, it can cause local severe hemato...

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): A61M5/158A61M25/06
Inventor 袁福利黑子清陈秉学赵宏
Owner 袁福利
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