Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Adjustable hepatic portal blocking device

An adjustable, hepatic portal technology, applied in the field of medical appliances, can solve the problems of tissue structure loss in the hepatic portal, strong blocking force of the portal occluding forceps, and side damage, etc., to achieve real-time monitoring of blood flow and speed up postoperative recovery. , the effect of simple structure design

Inactive Publication Date: 2022-06-03
THE FIRST AFFILIATED HOSPITAL OF WANNAN MEDICAL COLLEGE YIJISHAN HOSPITAL OF WANNAN MEDICAL COLLEGE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are some problems in the existing porta hepatis blocking devices, for example: 1. The porta hepatis blocking forceps have strong blocking force and good effect, but the texture is hard, causing great damage to blood vessels and bile ducts, and easily causing side injuries; 2. Ordinary Soft blocking bands such as glove edges, rubber bands, and urinary catheters are smooth and soft, and cause little damage to the hilar tissue structure, but they need to be fixed with the help of hem-o-lok clips, which is inconvenient and sometimes impossible to remove 3. For selective blocking of portal vein blood flow, conventional blocking devices are difficult to do, often together with the hepatic artery, and in some liver operations, we only need The operation can be completed by blocking the portal vein, or the patient’s liver function is poor and complicated with liver cirrhosis. Ensuring the blood supply of the artery is very important for the protection of the patient’s postoperative liver function

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
  • Adjustable hepatic portal blocking device
  • Adjustable hepatic portal blocking device
  • Adjustable hepatic portal blocking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like Figure 1 to Figure 3 As shown in the figure, the driving component is set as a drive motor 24, and the drive motor 24 is set as a micro motor, and the drive motor 24 drives the reel 21 to rotate to shorten or lengthen the traction rope 22, thereby driving the elastic threading belt 3 The operation of blocking and relaxing the blood vessel is performed, wherein the blood flow sensor 4 is connected to the drive motor 24 through the control unit 10, and the blood flow signal detected by the blood flow sensor 4 is transmitted to the control unit 10 until the blood flow sensor 4 detects no blood. After analyzing and calculating the flow signal, the control unit 10 controls the driving motor 24 to stop working, thereby realizing the automatic and reliable blocking operation of the blood vessel, saving manpower and improving the blocking efficiency.

[0039] The hollow operating rod 1 is provided with a control switch 5 and a reset switch 6 which are connected to the dri...

Embodiment 2

[0042] like Figure 4 and Figure 5 As shown, the driving part is set as a rotating handle 25, the rotating handle 25 is set as a Z-shaped handle, the rotating handle 25 is connected with the extension end of the connecting shaft 23, and the reel 21 can be rotated by manually rotating the rotating handle 25 , in order to realize the rotation and positioning of the reel 21 , a ratchet pawl mechanism 77 is installed on the part of the connecting shaft 23 located in the hollow operating rod 1 . The ratchet pawl mechanism 77 includes a ratchet wheel 71 mounted on the connecting shaft 23 and a ratchet pawl 72 rotatably connected inside the hollow operating rod 1. The ratchet pawl 72 is installed in the hollow operating rod 1 through a rotating shaft and a torsion spring. The ratchet wheel 71 cooperates with each other. When the reel 21 is rotated by manually operating the rotating handle 25, the ratchet wheel 71 rotates synchronously with respect to the pawl 72. When positioning i...

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

An adjustable hepatic portal blocking device belongs to the technical field of medical instruments and comprises a hollow operating rod, a telescopic mechanism is mounted in the hollow operating rod, and the hollow operating rod is connected with one end of an elastic penetrating belt through the telescopic mechanism so that blood vessels can be blocked or relaxed by a closed ring formed by the elastic penetrating belt. A blood flow sensor used for detecting blood flow signals in blood vessels is arranged on the elastic cross-under belt and connected with the display unit through the control unit, and the blood flow sensor has the advantages of being simple in structural design, convenient and reliable to operate, capable of monitoring blood flow in real time, wide in application range, capable of reducing bleeding in the operation process and capable of improving the operation efficiency. The safety and the high efficiency of an operation are ensured, and the postoperative rehabilitation of a patient is accelerated.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to an adjustable hepatic portal blocking device. Background technique [0002] Liver resection is a difficult and high-risk type of surgery in general surgery. Because the blood supply of the liver is very rich, it is necessary to block the blood flow into the liver during liver surgery. The Pringle method is routinely used to block the hepatic hilum to reduce the bleeding during the operation, ensure the safety and efficiency of the operation, and speed up the operation of the patient. after recovery. The key to successful liver surgery is to effectively and completely block the blood flow into the liver from the hepatic portal. [0003] The existing hepatic hilar blocking devices have some problems, such as: 1. The hepatic hilar blocking forceps have strong blocking force and good effect, but the texture is hard, and the damage to blood vessels and bile ducts is large...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12A61B90/00
CPCA61B17/12013A61B17/12009A61B90/06A61B2017/12004A61B2017/12018
Inventor 钱道海刘斌张澳王小明奚士航王徐曾美红张志云
Owner THE FIRST AFFILIATED HOSPITAL OF WANNAN MEDICAL COLLEGE YIJISHAN HOSPITAL OF WANNAN MEDICAL COLLEGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com