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Balloon having a multi-layer wall structure for the tissue-protective low-pressure sealing of operations and cavities in the body of a patient, in particular

A technology for filling pressure and balloon, applied in the direction of prosthesis, balloon catheter, drug device, etc., can solve the problem that the static model is not suitable for reflecting, the static model cannot record the periodic fluctuation of the tracheal cross-sectional area, etc.

Pending Publication Date: 2022-07-22
CREATIVE BALLOONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In summary, the static model fails to record the changes in the mentioned periodic fluctuations of the tracheal cross-sectional area as a scalable factor
Therefore, static models are not suitable to reflect the clinically effective quality of balloon-based seals in the trachea under pressure fluctuations

Method used

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  • Balloon having a multi-layer wall structure for the tissue-protective low-pressure sealing of operations and cavities in the body of a patient, in particular
  • Balloon having a multi-layer wall structure for the tissue-protective low-pressure sealing of operations and cavities in the body of a patient, in particular
  • Balloon having a multi-layer wall structure for the tissue-protective low-pressure sealing of operations and cavities in the body of a patient, in particular

Examples

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Embodiment Construction

[0028] figure 1 An exemplary 2-layer structure according to the invention of a balloon wall 1 is shown in a schematic embodiment, wherein the outer material layer 2 facing the respective lumen or cavity consists of thermoplastic PUR (Elastollan 1100) with a Shore hardness of 90A , and have a wall thickness of 5 to 10 microns occupying a certain proportion. Preferably, the material layer 3 facing the lumen of the balloon 12 consists of PVC with a Shore hardness of 70A and has a wall thickness of 15 to 20 microns occupying a proportion. The two polymers are preferably produced in direct, planar connection, ie without an adhesion-promoting intermediate layer, by means of a coextrusion process, in fixed attachment to each other. The PVC layer with a thickness of 15 to 20 microns, on the one hand, inhibits the elastic straightening of a proportion of the PUR layer folded in an eyelet-like morphology in a manner that reduces the speed and extent of the straightening. On the other ...

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Abstract

The invention describes a multi-layer balloon film material (1) which combines one or more layers of elastically deformable material (2) with one or more layers of plastically deformable inelastic material (3) which counteracts the straightening properties of the elastic layers in the event of planar folding or bending of the balloon film material. According to the invention, the cross-sectional area of an eyelet-like or channel-like structure (6) for guiding secretions or liquids, which is usually produced in the organ cavity or body cavity in the region of the fold-like depression of the balloon film with redundant dimensions, can be reduced, and the cross-sectional area can be stabilized in particular in the event of a periodic change in balloon filling pressure, in this way, an optimal sealing or packing result is achieved in a filling pressure amplitude range as large as possible.

Description

technical field [0001] The present invention relates to a balloon-like structure, in particular as a component of a catheter, for positioning in a cavity, such as a lumen or other lumen, in the body of a human or animal in such a way that the cavity in question is The cavity is filled as completely as possible, ie with no residual space remaining, but the cavity generally maintains its shape in this case, or is not deformed by the balloon body. Background technique [0002] In many cases, catheter applications in a patient require a balloon-like assembly that seals off a lumen or lumen or fills it with space, where even in the cross-sectional area of ​​the lumen to be sealed or the lumen to be sealed When the volume of the filled space fluctuates intermittently or, for example, periodically due to the physiological function of the corresponding structure, or due to the movement of the body, the sealing function and / or the packing function of the corresponding balloon is also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/04A61M25/10A61F2/00A61L29/00
CPCA61M16/0443A61M2025/1075A61M2205/0216A61L29/041A61L29/06A61M25/1002C08L27/06C08L75/04A61L29/049
Inventor F·格贝尔
Owner CREATIVE BALLOONS GMBH
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