US 7,744,915 B2Granted

Apparatus and method for preventing adhesions between an implant and surrounding tissues

AssigneeMAST Biosurgery AG

InventorsChristopher J. Calhoun, Ralph E. Holmes, G. Bryan Cornwall

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Abstract

An anti-adhesion membrane is placed onto an implant introduced into a surgical site of a patient to prevent post-surgical adhesions between the implant and surrounding tissue. The implant may comprise either biological material, such as a transplanted organ, or non-biological material such as a medical device. The membrane may be applied in a variety of ways. In one example, a membrane according to the present invention is shrink-wrapped around a pace-maker. In another example, a breast implant is spray-coated or dipped with the membrane material.

Claims12

Dependent claims

An apparatus, comprising:

an implant comprising a transplanted organ and being configured to be inserted into a surgical site of a patient surrounded by tissue, wherein when the implant is inserted into the surgical site, tissue surrounds and contacts an exterior surface of the apparatus;
and a resorbable membrane surrounding the implant for attenuating adhesions between the implant and the surrounding tissue, the resorbable membrane comprising a substantially planar membrane having a first substantially smooth side and second substantially smooth side and being heat-shrunk over the exterior surface of the implant;
wherein the substantially planar membrane is substantially non-porous and comprise a polymer base material selected from the group consisting essentially of:
a lactide polymer;
and a copolymer of two or more cyclic esters.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/653,064Filed 12 Jan 2007 · division
Priority: 31 Jul 2002
Published: US 2007/0116735 A124 May 2007
Granted: 29 Jun 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

A61C 8/0012
Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools:…
A61B 17/064
Surgical instruments, devices or methods: surgical staples, i.e. penetrating the tissue
A61C 8/0016
Characterised by the material or composition, e.g. ceramics, surface layer, metal alloy: polymeric material
A61L 27/34
Materials for coating prostheses: macromolecular materials

Family

Application60/399,813Us provisional application · filed 31 Jul 2002
Application60/409,137Us provisional application · filed 9 Sep 2002
Application10/632,014Parent of this division · filed 31 Jul 2003
US 2007/0116735 A1Pre-grant publication · published 24 May 2007
US 2004/0115241 A1Published application
US 7,767,222 B2Related patent
US 7,744,915 B2This patent

From the US filing history. Foreign family members aren’t listed.

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