Double-saccule blood vessel inner conduct

An inner catheter and double-balloon technology, applied in the field of intravascular catheters, can solve the problems of increased cardiac afterload, increased blood pressure, and high surgical mortality, and achieve the effects of ensuring smooth completion, reducing psychological pressure, and improving quality of life

Inactive Publication Date: 2005-03-16
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem existing in various arterial intravascular balloon catheters is that the downstream of the blocked part cannot supply blood at all, thus resulting in ischemia of the downstream organs. If the ischemia of the organs exceeds the safe time limit, it may cause acute renal failure, Spinal cord necrosis (paraplegia) and multiple organ dysfunction, so the current surgical mortality rate is still high (2% to 6.8%)
Due to concerns about the time of aortic occlusion, the surgeon cannot complete the aortic reconstruction calmly, and the premature opening of the aorta leads to a significant increase in the amount of bleeding
At the same time, the blockage of the high aorta increases the afterload of the heart, which not only increases the blood pressure of the upper body, but also leads to heart failure, which greatly increases the risk of anesthesia and surgery.

Method used

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  • Double-saccule blood vessel inner conduct
  • Double-saccule blood vessel inner conduct
  • Double-saccule blood vessel inner conduct

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The structure of the double-balloon intravascular catheter in this embodiment is as follows: figure 1 As shown, one end of the tubular body 1 is open, and the other end is equipped with a fixing sleeve 5. At the open end of the tubular body, the outer wall of the tubular body is coated and fixed with a first balloon 2 and a second balloon 3 at a certain interval. There are two balloon connecting tubes 6, which are inserted into the inner cavity of the tube body 1 through the fixing sleeve and communicate with the corresponding balloon inner cavity respectively. The tube body 1 is provided with a bleeding hole 4, which is located between the second balloon 3 and the inner cavity of the balloon. Between the fixed sleeves 5 and close to the second balloon, the bleeding hole 4 is equipped with a transfusion tube 7 , which is inserted into the lumen of the tube body 1 from the open end and communicates with the bleeding hole 4 .

Embodiment 2

[0026] The structure of the double-balloon intravascular catheter in this embodiment is as follows: figure 2 shown. The difference from Example 1 is that the tube body 1 is also provided with a side hole 8, which is located on the right side of the bleeding hole 4 and has a distance from the bleeding hole. The pipe 9 communicates with the side hole 8 .

Embodiment 3

[0028] The structure of the double-balloon intravascular catheter in this embodiment is as follows: image 3 , as shown in Figure 4. The difference from Example 1 is that there is a bare section of the balloon connection tube 6 and the blood transfusion tube 7 between the first balloon 2 and the second balloon 3; a side hole 8 is also provided on the tube body 1, and the side hole Located on the right side of the bleeding hole 4 and spaced from the bleeding hole, the side hole connecting tube 9 inserted into the inner cavity of the tube body 1 from the fixing sleeve communicates with the side hole 8 . Figure 5 and Image 6 It is a schematic diagram of the double-balloon intravascular catheter with this structure in the state of disconnection and recanalization during operation.

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PUM

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Abstract

The invention discloses a double-saccule blood vessel inner conduct pipe wherein the pipe is provided with an opening on one end, and a securing sleeve on the other end, the outer wall of the pipe is covered by a first saccule and a second saccule spaced by a finite distance on the opening end of the pipe, the saccule tube connector is inserted into the inner cavity of the pipe through the securing sleeve and is in communication with the inner cavities of the two saccules. The pipe is provided with a blood output hole, which is provided with a blood transfusion tube.

Description

technical field [0001] The invention belongs to medical equipment, in particular to an intravascular catheter with a balloon for vascular surgery. Background technique [0002] Aortic aneurysm and aortic stenosis are frequently-occurring and common diseases in vascular surgery. Orthotopic grafting or direct anastomosis of artificial blood vessels after resection of the aneurysm or stenosis is the main treatment. In order to facilitate the operation, the aorta needs to be temporarily blocked during the operation. The medical device currently used is an arterial intravascular balloon catheter. The other end of the body is inserted into a trachea and a blood vessel (also known as a lumen), which are respectively connected to the opening of each balloon lumen and catheter tube body, and the arterial blood flow is blocked by intermittently filling the balloon. The arterial intravascular balloon catheter disclosed in Chinese patent ZL 02113689.0 only adds a side hole on the cathe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61M39/08
Inventor 杜磊雷景新刘进
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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