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Three-cavity double-balloon venous catheter in assistance to completing total hepatic vascular exclusion

A technique for venous catheter and hepatic blood flow, which is applied in the field of medical devices to achieve the effects of improving surgical resection rate, simple operation and simple structure

Inactive Publication Date: 2013-11-20
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no literature report on the application of balloon catheter to the endoluminal occlusion of the suprahepatic and subhepatic inferior vena cava to assist in complete hepatic blood flow occlusion

Method used

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  • Three-cavity double-balloon venous catheter in assistance to completing total hepatic vascular exclusion
  • Three-cavity double-balloon venous catheter in assistance to completing total hepatic vascular exclusion
  • Three-cavity double-balloon venous catheter in assistance to completing total hepatic vascular exclusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1-4 As shown, a three-lumen double-balloon venous catheter used to assist complete hepatic blood flow occlusion includes a three-lumen catheter body and two balloons; the three-lumen catheter body is composed of The guide wire and the infusion chamber 3, the first balloon chamber 4 and the second balloon chamber 5, the front end of the three-lumen catheter body is a conical pointed tip, the middle opening of the conical pointed tip communicates with the guide wire and the infusion chamber The outer wall of the three-lumen catheter body is wrapped with a first balloon 1 and a second balloon 2, and the first balloon communicates with the first balloon cavity through the first balloon opening 6 on the outer wall of the three-lumen catheter body, and the first balloon communicates with the first balloon cavity. The second balloon communicates with the second balloon cavity through the second balloon opening 7 on the outer wall of the three-lumen catheter.

Embodiment 2

[0029] A three-lumen double-balloon venous catheter for assisting in complete hepatic blood flow occlusion, the rest is the same as in Example 1, the rear end of the three-lumen catheter body is connected to a fixed base, and the fixed base is provided with three The guide wire and the infusion chamber 3, the first balloon chamber 4 and the second balloon chamber 5 pass through these three holes respectively.

[0030] The guide wire, the infusion chamber, the first balloon chamber and the second balloon chamber are equipped with a bayonet.

Embodiment 3

[0032] A three-lumen double-balloon venous catheter for assisting in complete hepatic blood flow occlusion, the rest is the same as in Example 1, and the distance between the first balloon 1 and the second balloon 2 is 6 cm.

[0033] The first balloon opening 6 and the second balloon opening 7 are located on opposite sides of the outer wall of the three-lumen catheter.

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Abstract

The invention provides a three-cavity double-balloon venous catheter in assistance to completing total hepatic vascular exclusion, and belongs to the technical field of medical apparatus and instruments. The three-cavity double-balloon venous catheter comprises a three-cavity catheter body and two balloons. The three-cavity catheter body is composed of a guide wire and transfusion cavity (3), a first balloon cavity (4) and a second balloon cavity (5), and the guide wire and transfusion cavity (3), the first balloon cavity (4) and the second balloon cavity (5) are not communicated with one another. The front end of the three-cavity catheter body is a conical pointed end, and an opening formed in the middle of the conical pointed end is communicated with the guide wire and transfusion cavity (3). The outer wall of the three-cavity catheter body is wrapped with a first balloon (1) and a second balloon (2). The first balloon (1) is communicated with the first balloon cavity (4) through a first balloon opening (6) in the outer wall of the three-cavity catheter body, while the second balloon (2) is communicated with the second balloon cavity (5) through a second balloon opening (7) in the outer wall of the three-cavity catheter body. The three-cavity double-balloon venous catheter is applicable to suprahepatic and infrahepatic vena cava vascular exclusion and is confirmed by animal experiments to be true and reliable in blocking blood flowing. The three-cavity double-balloon venous catheter is easier, safer, more time saving and suitable for being used in general hospitals as compared with the traditional one.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a three-cavity double-balloon venous catheter for assisting complete hepatic blood flow occlusion. Background technique [0002] Primary liver cancer is one of the major malignant tumors that threaten human life, and surgical resection is still recognized as the first choice of treatment. However, for tumors involving the second and third hepatic hilums and tumor thrombus in the hepatic vein and inferior vena cava, surgical treatment was often given up in the past because fatal massive bleeding and / or air embolism were likely to occur during surgery. In recent years, with the in-depth study of liver anatomy, the advancement of surgical technology and the improvement of anesthesia management, such patients can be resected by total hepatic vascular exclusion (THVE), thereby improving the quality of life of patients. prognosis and prolong survival time. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61B17/12
Inventor 耿利杨甲梅戴炳华
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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