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Child non-standard balloon dilating catheter

A dilating catheter, non-standard technology, applied in the direction of balloon catheters, catheters, dilators, etc., can solve the problems of excessive expansion of blood vessels, excessive tearing of vascular intima, stenosis, etc., to reduce thrombus or restenosis, and improve crossing performance , good effect of wall adhesion

Pending Publication Date: 2018-09-21
BEIJING FRIENDSHIP HOSPITAL CAPITAL MEDICAL UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The anatomical feature of the venous system is a quasi-elliptical structure. Applying existing devices to patients with venous stenosis after liver transplantation may easily lead to clinical problems such as excessive expansion of blood vessels, local excessive tearing of the intima of the blood vessels, and even the formation of thrombus. Internal treatment of postoperative restenosis affects the final clinical treatment effect, leading to loss of function of the transplanted liver or death of the patient

Method used

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  • Child non-standard balloon dilating catheter
  • Child non-standard balloon dilating catheter

Examples

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Effect test

Embodiment 1

[0033] figure 1 A schematic structural view of a specific embodiment of the balloon dilatation catheter provided in this application.

[0034] Such asfigure 1 and figure 2 As shown, the balloon dilatation catheter includes: an outer tube 1 , an inner tube 2 , a balloon 3 , a connector 4 , a developing mark 5 , and a stress diffusion tube 6 .

[0035] The outer tube 1 is a hollow structure, the proximal end of the outer tube 1 is fixed with the connecting piece 4 and is sealed with the connecting piece 4 , and the distal end of the outer tube 1 is sealed and fixed with one end of the balloon 3 . In addition, in order to ensure that the distal end of the outer tube 1 is soft enough to enter blood vessels, and that the proximal end of the outer tube 1 is hard enough to provide a greater thrust when pushing, in other embodiments of the present application, the outer tube 1 can also be A multi-stage design is adopted, that is, from the far end to the proximal end of the outer tu...

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Abstract

The invention discloses a child non-standard balloon dilating catheter, and belongs to the field of medical instruments. The child non-standard balloon dilating catheter comprises an outer tube, a balloon, an inner tube and a connector, the balloon is a sectional tubular cavity and provided with a far-end portion, a middle-end portion and a near-end portion, the cross sections of the far-end portion, the middle-end portion and the near-end portion are elliptical, the middle-end portion can be expanded to reach a dilating diameter larger than the far-end portion, the near-end portion can be expanded to reach a dilating diameter larger than the middle-end portion, the far-end portion, the middle-end portion and the near-end portion of the balloon are provided with tapered transition structures, and the diameters of the tapered transition structures are gradually increased from the far end to the near end of the balloon. The child non-standard balloon dilating catheter has the advantagesthat lesion vessels can be progressively increased from small diameters to large diameters to realize sequential expansion of the balloon dilating catheter, the risk of vascular rupture can be decreased, the balloon dilating catheter can be closely fitted with the vessels in a dilating surgery, and surgical safety and stability are ensured.

Description

technical field [0001] The invention relates to a children's non-standard balloon dilatation catheter, which is a special intervention operation device for children's venous angioplasty and belongs to the field of medical devices. Background technique [0002] Pediatric liver transplantation is the preferred treatment for children with end-stage liver disease. The prognosis of liver transplantation in children is affected by many factors, the most important of which is the prevention and treatment of complications. Venous stenosis is a common vascular complication after liver transplantation in children. If it is not treated in time and effectively, the fatality rate can reach 24%. The incidence of vascular complications in children after liver transplantation is significantly higher than that in adults, and a large number of children with venous stenosis after liver transplantation in children have been detected clinically. However, there is currently no effective treatme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61M29/02
CPCA61M25/104A61M29/02A61M2025/1079A61M2025/105A61M2205/32
Inventor 金龙张致远
Owner BEIJING FRIENDSHIP HOSPITAL CAPITAL MEDICAL UNIV
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