Hepatic portal vein catheter

A hepatic portal vein and catheter technology, applied in the field of hepatic portal vein catheter, can solve the problems of unfavorable postoperative follow-up, pressure loss, inaccurate results, etc., and achieve the effect of small percutaneous puncture wound, small catheter size, and fast response to measurement feedback

Pending Publication Date: 2021-01-01
郑永昌 +2
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of puncture operation is risky, and it is not conducive to postoperative follow-up. In addition, the measurement of blood flow pressure through the perfusion of normal saline in

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
  • Hepatic portal vein catheter
  • Hepatic portal vein catheter
  • Hepatic portal vein catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] refer to Figure 1 to Figure 3b , the embodiment of the present invention provides a kind of hepatic portal vein catheter, and this hepatic portal vein catheter comprises tube body 10, sensor 201, lead wire 202 and surrounding wall coating 302 and end coating 301, wherein, tube body 10 material is selected from nylon, Polytetrafluoroethylene, polyether ether ketone, polyethylene, polypropylene and other materials; the tube body 10 has a guide wire channel 101 and sensor grooves 102 and lead wire grooves 103 interconnected with each other. The guide wire channel 101 is used to place interventional The surgical guide wire is kept at a certain distance from the sensor groove 102 at the same time; the sensor 201 is placed in the sensor groove 102 to measure the hepatic portal vein pressure, and the lead wire 202 is placed in the lead wire groove 103 to connect the sensor 201 and the outside of the catheter. Signal collection equipment; the peripheral wall coating 302 is set...

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 a hepatic portal vein catheter which comprises a catheter body, wherein a guide wire channel, a sensor groove and a lead groove are formed in the catheter body; a sensor whichis arranged in the sensor groove and used for measuring hepatic portal vein pressure; a lead which is arranged in the catheter body lead groove and is used for electrically connecting the sensor withexternal equipment of the catheter body; and coatings which are arranged on the outer surface of the wall surface of the catheter body and the sensing outer surface of the sensor and used for isolating direct contact between the catheter and external blood. The hepatic portal vein catheter integrates the pressure micro-sensor and the drug/electrical stimulation targeted treatment micro-channel atthe same time, hepatic portal vein pressure monitoring and targeted treatment can be carried out in a long-term implantation or short-term intervention mode, the sensor is directly integrated and packaged on the head of the catheter body, hepatic portal vein pressure can be directly measured, measurement feedback response is fast, accuracy is high, and popularization and application are easy. Meanwhile, the catheter is small in size, compact in structure and small in percutaneous puncture wound.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a hepatic portal vein catheter. Background technique [0002] Portal hypertension is a group of syndromes caused by persistently increased portal pressure, which is a typical chronic disease. Portal venous pressure increases when portal blood cannot pass through the liver and return to the inferior vena cava smoothly. Most are caused by liver cirrhosis, and a few are secondary to portal vein or hepatic vein obstruction and other factors of unknown cause. According to statistics, there are currently more than 20 million patients with liver cirrhosis in the world, of which more than 7 million patients are in my country, and the number of patients is increasing. [0003] The normal hepatic portal vein pressure gradient is 3-5mmHg, and the liver decompensation rate increases by 11% for every 1mmHg increase. If it exceeds 10mmHg, it is considered that varices are formed, and liver cir...

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): A61M25/00A61M25/09A61B5/0215A61N1/36
CPCA61B5/02152A61B2562/0247A61M25/0045A61M25/09041A61M2025/0002A61N1/36
Inventor 郑永昌
Owner 郑永昌
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