Isometric double-shearing-mouth sleeving blood vessel anastomosis method

A blood vessel and isometric technique, applied in the field of microarterial anastomosis, can solve the problems of long operation time, small application range, increased blood turbulence, etc., and achieve the effect of short operation time, wide application range and high vascular patency

Inactive Publication Date: 2015-12-23
任振虎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each suture method has its own advantages and disadvantages. Intermittent suture has clear fixed points and is easy to operate. However, the number of suture stitches and the number of knots are more, and the operation time is longer. Continuous suture has the least number of knots, but it will appear when the suture is tightened. The purse is too tight, resulting in too short anastomotic caliber; the number of intussusception suture needles is small, and the patency rate is high, but the requirements for micromanipulation are high and the suture positioning is sometimes inaccurate; the operation time of the vascular stapler is short, and it can support the anastomosis to prevent thrombus Formed, but it has high requirements on the caliber of blood vessels at both ends, and the scope of use is too small
In addition, there is an improved intussusception anastomosis with a single incision, but the great disadvantage of this anastomosis is that except for the first stitch, the rest of the stitches are only required to suture the media of the blood vessel at the invaginated end, but cannot pass through the intussusception. This requires extremely high micromanipulation. At the same time, suturing the vascular media at the non-anastomotic site will affect the shape of the lumen, resulting in stenosis of the official lumen, etc., increasing blood turbulence, thereby increasing the loss of the inner wall of the blood vessel and the possibility of thrombus formation.
At the same time, the single notch intussusception method has higher requirements for the suture positioning of the other stitches except the first stitch.

Method used

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  • Isometric double-shearing-mouth sleeving blood vessel anastomosis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] see figure 1 , in an embodiment of the present invention, a blood vessel anastomosis method with equidistant double notch intussusception, the specific steps are as follows:

[0017] (1) Peel off the adventitia: Use microscopic tweezers to pull the vascular adventitia toward the broken end, and use microscissors to cut off the pulled adventitia, allowing it to retract naturally to reveal the smooth vascular wall, so as not to cause damage , the distance between the adventitia and the broken end after stripping is 0.5cm; the intima is smooth and complete, and the veins with thin walls are difficult to identify the adventitia.

[0018] (2) Trim the broken end of the blood vessel: use straight micro-scissors to cut off the 0.2cm broken end of the blood vessel to make the section neat, and carefully check the fibrous or fat tissue existing on the section or scattered on the surface of the broken end;

[0019] (3) Dilation of blood vessels: If there is vasospasm or the diam...

Embodiment 2

[0023] see figure 1 , in an embodiment of the present invention, a blood vessel anastomosis method with equidistant double notch intussusception, the specific steps are as follows:

[0024] (1) Peel off the adventitia: Use microscopic tweezers to pull the vascular adventitia toward the broken end, and use microscissors to cut off the pulled adventitia, allowing it to retract naturally to reveal the smooth vascular wall, so as not to cause damage , the distance between the adventitia and the broken end after stripping is 0.8cm; the intima is smooth and complete, and the veins with thin walls are difficult to identify the adventitia.

[0025] (2) Trim the broken end of the blood vessel: Use straight micro scissors to cut off the 0.4cm broken end of the blood vessel to make the section neat, and carefully check the fibrous or fat tissue existing on the section or scattered on the surface of the broken end;

[0026] (3) Dilation of blood vessels: If there is vasospasm or the diam...

Embodiment 3

[0030] see figure 1 , in an embodiment of the present invention, a blood vessel anastomosis method with equidistant double notch intussusception, the specific steps are as follows:

[0031] (1) Peel off the adventitia: Use microscopic tweezers to pull the vascular adventitia toward the broken end, and use microscissors to cut off the pulled adventitia, allowing it to retract naturally to reveal the smooth vascular wall, so as not to cause damage , the distance between the adventitia and the broken end after stripping is 1cm; the intima is smooth and complete, and the veins with thin walls are difficult to identify the adventitia.

[0032] (2) Trim the broken end of the blood vessel: Use straight micro scissors to cut off the 0.5cm broken end of the blood vessel to make the section neat, and carefully check the fibrous or fat tissue existing on the section or scattered on the surface of the broken end;

[0033] (3) Dilation of blood vessels: If there is vasospasm or the diamet...

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Abstract

The invention discloses an isometric double-shearing-mouth sleeving blood vessel anastomosis method. The method particularly comprises the following steps of adventitia stripping, wherein the blood vessel adventitia is pulled towards the broken end with microscopic tweezers, and the pulled-out adventitia is sheared off with microscopic shears, so that the blood vessel adventitia naturally retracts to enable the smooth blood vessel walls to be exposed out; trimly cutting of the blood vessel broken ends, wherein 0.2-0.5 cm of the blood vessel broken ends are sheared off with straight microscopic shears to enable the broken faces to be trim; blood vessel expanding; suturing, wherein the sleeving end blood vessel is sheared open, the sheared length is equal to the diameter of the sleeving end blood vessel, the sleeved end on the sheared 180-degree opposite side of the sleeving end blood vessel is sheared by the same length, full-thickness suturing is performed on the tops of the sleeving end shearing mouths and the sleeved end with a first needle and a second needle, that is, apposition suturing is performed on the A point and the B point, apposition suturing is performed on the C point and the D point, and in-situ suturing is performed on the sheared free corners of the sleeving end blood vessel. By adopting 180-degree isometric double-shearing-mouth sleeving suturing, the method has the advantages of being simple and convenient to operate, short in operating time, high in blood vessel patency rate and wide in application range.

Description

technical field [0001] The invention relates to a microarterial anastomosis method, in particular to a blood vessel anastomosis method with equidistant double notch intussusception. Background technique [0002] There are many suturing methods for microvascular, such as equidistant double fixed-point interrupted suture, equidistant three fixed-point interrupted suture, continuous suture, spiral interrupted suture, intussusception suture, vascular stapler, etc. Each suture method has its own advantages and disadvantages. Intermittent suture has clear fixed points and is easy to operate. However, the number of suture stitches and the number of knots are more, and the operation time is longer. Continuous suture has the least number of knots, but it will appear when the suture is tightened. The purse is too tight, resulting in too short anastomotic caliber; the number of intussusception suture needles is small, and the patency rate is high, but the requirements for micromanipula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/115
CPCA61B17/115A61B2017/1107A61B2017/1132
Inventor 任振虎吴汉江王铠张陈平季彤
Owner 任振虎
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