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Conformable tissue expander

A dilator and tissue technology, applied in the direction of dilator, application, drug equipment, etc., can solve the problems that cannot be easily changed

Inactive Publication Date: 2016-04-06
OXTOX LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the structures described above can provide control over time delay and rate of expansion, they are generally of standard size and cannot be easily changed to suit the specific needs of different patients prior to insertion

Method used

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  • Conformable tissue expander
  • Conformable tissue expander
  • Conformable tissue expander

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Embodiment Construction

[0034] The present invention may employ self-expanding polymer gels. The self-expanding polymer network of the present invention may be based on a hydrophilic polymer network capable of absorbing water but not dissolving. The hydrophilic character is provided by functional groups on the polymer such as hydroxyl, carboxyl or amide functional groups. Preferably, the self-expanding polymer network comprises at least one compound comprising -COOH, >C=0, -OH or -NH 2 base monomer. Resistance to solubility is a result of the presence of structural crosslinks, crystalline regions or entanglements. Such materials are typically referred to as "hydrogels". Hydrogels consist of two components, a constant amount of polymer network (i.e. gel) and a variable water content. In the anhydrous state (before insertion), the material is often referred to as xerogel. Anhydrous materials are hygroscopic and absorb / absorb water from their native environment to hydrate the network. A self-expan...

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Abstract

The present invention provides a tissue expander (10) comprising a self-inflating core (12) having a non-inflated state and an inflated state and a coating (14) surrounding said core (12), wherein said core (12) comprises two or more segments (16) of dried compacted material of height H joined to each other by conformable linking portions (18) of height h where H is greater than h. the conformable linking portions (18) allow for the expander (10) to be conformed to a desired profile either before or after insertion under the skin of a patient.

Description

technical field [0001] The present invention relates to expandable components, particularly but not exclusively to components known as tissue expanders. Such dilators may be used by physicians, veterinarians, and dental personnel to produce dilation of patient tissue prior to corrective or augmentative surgery and typically have a controlled rate of dilation and may also be configured with time-delayed dilation capabilities. A particular aspect of the invention relates to providing structures that are more easily configured to accommodate complex shapes. Background technique [0002] Currently, tissue expanders are a key component of reconstructive plastic surgery and are used, for example, in the treatment of congenital malformations and acquired defects. [0003] EP10776126 describes a known form of tissue expander and from it it is understood that they generally comprise material which has been compressed after drying, which will expand upon rehydration to regain any hei...

Claims

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Application Information

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IPC IPC(8): A61B90/00
CPCA61F2210/0061A61F2/0059A61F2250/0004A61L31/10A61L31/145A61L31/146A61B90/02A61F2/10A61F2/12A61L27/52A61M29/00A61M2202/0007
Inventor D·E·杰克逊
Owner OXTOX LIMITED
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