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Tight puncture seal

A puncture hole, sealing element technology, applied in the arterial-puncture sealing field, can solve the problems of weakened blood drop, unsanitary blood drop, no longer able to ensure pressure-tight adhesion of the sealing tongue, etc., to prevent contamination and/or damage Effect

Inactive Publication Date: 2004-03-24
KAIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This drop of blood is unsanitary and presents an infection hazard to surgical staff
In addition, the glue can be weakened by blood droplets in such a way that a pressure-tight adhesion of the sealing tongue to the support wall can no longer be ensured.

Method used

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Examples

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Effect test

Embodiment Construction

[0038] In the four different embodiments shown in Figures 1 to 4, the same core structure is all there, because all these puncture seals 10, 20, 30, 40 have a relatively small elongation and are made of a 40 μm thick polyurethane foil. The supporting walls 11, 21, 31, 41, which are bonded and welded together with the pressure walls 12, 22, 32, 42 made of 25 μm thick polyurethane foil by line or surface, so that on the supporting walls 11, 21, 31, 41 Between the pressure wall 12, 22, 32, 42, a pressure chamber 13, 23, 33, 43 is formed for receiving blood flowing from the blood vessel, on the body-facing side of the puncture seal 10, 20, 30, 40 Coated with a skin-compatible, biocompatible, preferably acrylate- or silicone-based glue 14, 24, 34, 44 by which the puncture seal 10, 20, 30, 40 can be securely adhered to the patient on the skin. In order for these adhesive layers to be transportable and to function properly, a protective film (not shown here) is added.

[0039] On t...

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Abstract

The present invention relates to a puncture seal for sealing a blood vessel having a puncture opening in a body of a human being or an animal. Said seal comprises a pressure chamber (23) which can be attached to the body in the area of the puncture opening and subjected to an overpressure, wherein the pressure chamber (23) has a supporting wall (21) in an area opposite to the body. In order to create a puncture seal, in which the pressure chamber (23) can be reliably sealed once the hypodermic needle has been removed, a sealing element (25) made of a material with a certain elastic return force, which is at least 1 mm thick is provided and placed in the area of the supporting wall (21) to be punctured by the hypodermic needle.

Description

technical field [0001] The invention relates to an arterial puncture seal for sealing an arterial vessel with a puncture in the body of a human or animal with its own blood, which has an area where an overpressure can be applied and the puncture can be made in the body An internally fixed pressure chamber, wherein the pressure chamber has a support wall in its region away from the body. Background technique [0002] Known from DE-4429230, WO96 / 05774 or WO97 / 06735 (published subsequently) are puncture seals for sealing blood vessels with puncture holes whose pressure chambers are filled with blood flowing from the blood vessel until a pressure chamber is formed in the pressure chamber The blood pressure that exists in a blood vessel such that there is a pressure balance between the blood vessel and the pressure chamber. Bleeding is stopped by this pressure balance. The puncture seals known from DE-4429230 or WO96 / 05774 have a support wall which is hardly extensible, on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/12A61B17/00A61B17/08A61F13/00A61F13/02A61L31/00
CPCA61B2017/00659A61F13/02A61F2013/00468A61B17/0057A61B17/085A61B2017/00535A61B2017/00637A61F2013/00417A61F13/0213A61F13/0226
Inventor 恩斯特-迪特黑尔姆·哈里恩克里斯蒂·班格特
Owner KAIP
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