Porta hepatis blocking device

A hepatic portal and tab technology, applied in the field of hepatic portal blocking devices, can solve the problems of inconvenient operation, affecting the operation process of the surgical field, and non-occurrence, and achieve the effects of improving the success rate of surgery, being convenient for popularization and application, and having a reasonable device design.

Inactive Publication Date: 2011-06-22
ZHEJIANG UNIV
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional laparotomy, there are many ways to block the hepatic duodenum, including manipulation (Pringle maneuver), blocking the duodenal ligament with a pediatric catheter, etc., but there is still a lack of methods in clinical practice The device is specially used to block the blood flow of the first hepatic portal. When using the Pringle maneuver, the operator needs to pinch the hepatoduodenal ligament with one hand, which will affect the surgical field of view and

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
  • Porta hepatis blocking device
  • Porta hepatis blocking device
  • Porta hepatis blocking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] see figure 1 , the device is composed of tab 1, double-tube shell 2, tab tube 3, shaft 4, tab tip 7, belt threading tube 8, tab button 9, spring leaf 10, blocking belt 11, and tab tube 3 It forms a double-tube housing 2 with the belt threading cylinder 8. The tab 1 is in the shape of a "Z", one end of which is the tongue tip 7, and the other end is the tab button 9. The tab 1 is located in the tab tube 3, and the tongue tip is 7 protrudes from one side of the tongue cylinder 3 and enters the belt threading cylinder 8, the tongue button 9 protrudes from the other side of the tongue cylinder 3, connects the tongue 1 and the tongue cylinder 3 through the shaft 4, and the spring leaf 10 is Bow-shaped, located in the tongue barrel 3, one end is fixed with the tongue barrel 3, the arched back of the spring piece 10 withstands the tongue 1 so that the tongue button 9 protrudes from the tongue barrel 3, and the tail end of the blocking belt 11 is connected with the tongue The ...

Embodiment 2

[0021] see Image 6 When using this device to perform liver surgery, the blocking band 11 is bypassed around the hepatoduodenal ligament, and the blocking band 11 is inserted into the band-threading tube 8 of the double-tube housing 2 and pulled out from the other end, using The function of the spring piece 10, the back of the spring piece 10 bears against the tab 1, and the shaft is used as a fulcrum for leverage. The tab 1 rotates along the shaft, so that the tongue tip 7 of the tab is against the blocking belt 11 and is stuck on the blocking belt 11. On the tooth-shaped protrusion of the occlusion band 11, the blocking band 11 can only be tightened in one direction, and the hepatoduodenal ligament can be blocked after the blocking band 11 is tightened.

[0022] see Figure 7 , when the tab button 9 is pressed, the tab 1 rotates around the axis and flattens the spring piece 10. At this time, the tongue tip 7 of the tab retracts into the tab barrel 3, so that the blocking 11...

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
Lengthaaaaaaaaaa
Login to view more

Abstract

The invention provides a porta hepatis blocking device. The porta hepatis blocking device consists of a clamping tongue, a double-cylinder shell, a clamping tongue cylinder, a shaft, a belt-penetrating cylinder, a clamping tongue tip, a clamping tongue press key, a spring sheet and a blocking belt, wherein the clamping tongue cylinder and the belt-penetrating cylinder form the double-cylinder shell; the clamping tongue has a 'Z' shape and is positioned in the clamping tongue cylinder; the shaft is connected with the clamping tongue and the clamping tongue cylinder; the spring sheet has an arcuate shape and is positioned in the clamping tongue cylinder; one end of the spring sheet is fixed with the clamping tongue cylinder; the bow back of the spring sheet is propped against the clamping tongue, so that the clamping tongue press key extends out of the clamping tongue cylinder; the tail end of the blocking belt is fixed with the clamping tongue cylinder; and the blocking belt is provided with toothed bumps. The porta hepatis blocking device enters the belt-penetrating cylinder through one end of the blocking belt, blocks and dredges blood flow entering a liver through expansion of the clamping tongue tip, and blocks the blood flow entering the liver under a laparoscope, namely blocks the first porta hepatis blood flow. The porta hepatis blocking device has reasonable design, simpleness and convenience of manufacturing and simpleness and practicability of operation, solves the problem perplexing the operation for a long time, greatly increases success rate of the operation and is convenient to popularize and apply.

Description

technical field [0001] The invention belongs to medical equipment, and relates to a hepatic portal blocking device for blocking the hepatic duodenum ligament of the first hepatic portal blood flow. Background technique [0002] The blood supply of the liver is very rich, the blood volume of the liver is equivalent to 14% of the total body, and the blood flow of the adult liver is 1500-2000ml per minute. The blood vessels of the liver are divided into two groups: the hepatic blood vessels and the hepatic blood vessels. The blood vessels entering the liver mainly include the proper hepatic artery and the portal vein located in the hepatoduodenal ligament, which belong to the dual blood supply. Due to the rich blood supply of the liver, in order to reduce intraoperative blood loss or avoid intraoperative hemorrhage during liver surgery, it is usually necessary to block the blood flow into the liver, that is, to block the blood flow of the first hepatic portal (or called blockin...

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): A61B17/132
Inventor 阙日升丁国平
Owner ZHEJIANG 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