External brace for recovering venous valve function through tracting joint of venous valves

A functional, venous and vascular technology, applied in the field of functional devices, can solve the problems of incorrectness, difficult calibration, impossible inspection of shell valves, etc., and achieve the effect of less spasm

Inactive Publication Date: 2006-08-09
桑戈S.A.S.迪卡塔尼里塔有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0009] In fact, it is not certain that the application of antero-posterior pressure by reducing the diameter of the anteroposterior of the venous vessel compulsorily determines the increase in the diameter of the lateral-lateral coaptation of the venous shell valve, because, in practice, in vivo: depends on Due to the normally occurring constriction of the muscular portion of the vein wall during resection of the venous vessel from the surrounding tissue shell; dependent on blood pressure within the venous vessel; in it's final state, and actually turns out to be an assumption in the spirit of ZUKOWSKI's device, so it's more difficult to calibrate and probably incorrect
[0010] In addition, venospasm ensuing after surgical management reduces the diameter of the surrounding vessels, so that the two valve cusps will not be optimally apposed, making it impossible to examine the shell valve during surgery (i.e., during the procedure). function

Method used

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  • External brace for recovering venous valve function through tracting joint of venous valves
  • External brace for recovering venous valve function through tracting joint of venous valves
  • External brace for recovering venous valve function through tracting joint of venous valves

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Embodiment Construction

[0021] The external support consists of two arcuate frame shells of elongated material, respectively the rear or deep frame shell 1 (see attached figure 1 ) and front or shallow frame housing 1A (see attached figure 2 ). The external support is intended to be implanted longitudinally (ie along the length of the venous vessel) around the venous vessel.

[0022] Two box-shaped enclosures are used to perform different functions.

[0023] The posterior frame housing 1 comprises proximal and distal sharply shaped branches of elongated material for easy insertion behind the posterior wall of the venous vessel through two paths prepared by the surgeon, while Ligation of the final lateral venous vessel is not required. The easy-insertion branches according to the preferred embodiment depicted in the figures are proximal and distal narrow bends 2, 3 of elongated material with apexes in the shape of eyelets 2', 3'. The narrow bends 2 , 3 follow each other centrally by a large centr...

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Abstract

The present invention relates to an exterior support which can be implanted into periphery of venous blood vessel along its length and is used for restoring shell valve function of venous blood vessel. It includes front and rear arcuate frame external shells on a thin-long material, the rear frame external shell includes two branches of sharp-pointed thin-long material, every frame external shell includes the correspondent drawing side with longitudinal straight-line side branch-drawing device, and two frame external shells are mutually parallelly arranged. Said invention also provides the concrete application method of said exterior support for restoring function of venous valve by drawing mutually combined wall of venous valve.

Description

technical field [0001] The present invention relates to a device for restoring the function of a venous valve. Background technique [0002] The general device for restoring the function of venous valves is disclosed in International Application No.WO97 / 40755 (inventor ZUKOWSKI) published on November 6, 1997. The title of this international application is "Device for Restoring Competence to Venous Valves" function of the device)", it is the closest prior art. [0003] The device of ZUKOWSKI is based on the discovery that an external force applied to a venous vessel flattens the venous vessel in order to extend the valve tip laterally in the plane of the coaptation surface of the incompetent, relaxed valve of such a venous vessel, by This absorbs their relaxation and joins them, restoring the function of the veins. [0004] This ZUKOWSKI device is characterized by a brace that applies corrective pressure to incompetent venous vessels. [0005] ZUKOWSKI discloses a support ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/122A61F2/06
Inventor 圣·卡米利
Owner 桑戈S.A.S.迪卡塔尼里塔有限公司
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