Source: http://www.google.com/patents/US8128708?dq=5527183
Timestamp: 2013-12-22 12:21:45
Document Index: 448846024

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'art 1', 'art 1', 'Application No. 08012454']

Patent US8128708 - Multi-formed collagenous biomaterial medical device for use in wound care - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsDescribed are methods for treating a topical wound in a patient. The methods involve applying to the wound a wound dressing including a collagenous biomaterial isolated as a sheet of tissue from urinary tract tissue of a mammal....http://www.google.com/patents/US8128708?utm_source=gb-gplus-sharePatent US8128708 - Multi-formed collagenous biomaterial medical device for use in wound careAdvanced Patent SearchPublication numberUS8128708 B2Publication typeGrantApplication numberUS 12/695,225Publication dateMar 6, 2012Filing dateJan 28, 2010Priority dateAug 23, 1996Also published asCA2263421A1, CA2263421C, DE69725592D1, DE69725592T2, DE69738698D1, EP0925077A2, EP0925077B1, EP1378257A2, EP1378257A3, EP1378257B1, EP1955721A1, US6206931, US7652077, US20030041386, US20040078076, US20040180042, US20080167727, US20080167728, US20080171092, US20100104658, US20100106256, US20100106257, US20100129463, US20110076329, WO1998022158A2, WO1998022158A3Publication number12695225, 695225, US 8128708 B2, US 8128708B2, US-B2-8128708, US8128708 B2, US8128708B2InventorsMichael C. Hiles, Umesh H. PatelOriginal AssigneeCook Biotech IncorporatedExport CitationBiBTeX, EndNote, RefManPatent Citations (112), Non-Patent Citations (36), Referenced by (1), Classifications (39), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetMulti-formed collagenous biomaterial medical device for use in wound careUS 8128708 B2Abstract Described are methods for treating a topical wound in a patient. The methods involve applying to the wound a wound dressing including a collagenous biomaterial isolated as a sheet of tissue from urinary tract tissue of a mammal.
STATEMENT OF RELATED APPLICATIONS The present application is a divisional patent application of U.S. patent application Ser. No. 10/744,420, filed Dec. 23, 2003 now U.S. Pat. No. 7,699,895, which is a continuation of U.S. patent application Ser. No. 09/320,933, filed May 27, 1999, now U.S. Pat. No. 6,666,892, which is a continuation-in-part of U.S. patent application Ser. No. 08/916,490, filed Aug. 22, 1997, now U.S. Pat. No. 6,206,931, issued Mar. 27, 2001, which claims the benefit of U.S. Provisional Patent Application No. 60/024,542, filed Aug. 23, 1996, U.S. Provisional Patent Application No. 60/024,693, filed Sep. 6, 1996, and the above-referenced U.S. patent application Ser. No. 09/320,933, filed May 27, 1999, claims the benefit of U.S. Provisional Patent Application No. 60/110,407 filed Dec. 1, 1998, all of which are incorporated herein in their entirety.
BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1A and 1B show two aspects of the invention as the biomaterial in multilaminate sheet (FIG. 1A) or sponge (FIG. 1B) forms.
Example 13 With reference to FIG. 1A, to prepare lyophilized multilaminate sheets 15, a sheet 20 of hydrated SIS was laid down on a non-stick surface, such as polytetrafluoroethylene (TEFLON�) and smoothed to remove any ripples or entrapments between the sheet 20 and the non-stick surface. A second sheet was placed over the first sheet and smoothed out in the same fashion. The process was repeated until the preselected number of sheets 20 were stacked forming the multilaminate sheet structure 15. A thin layer of high purity water was glazed over the top sheet, of SIS and the material was frozen at −80� C. for at least 2 hours. The material was then vacuum dried at a vacuum pressure less than 100 millitorr (preferably, less than 15 millitorr) in a condenser operating at −70� C. for six hours. The dried sheets were then cut into a preselected shape, sealed in packaging, and terminally sterilized using ethylene oxide.
The collagen biomaterial can be made radiopaque by a variety of conventional procedures, none of which has yet been applied to tela submucosa. In one embodiment of the invention, the collagen material has a shape, namely made into sheets, either in lyophilized or non-lyophilized form. With reference to FIGS. 1A, 1B, 2A, and 2B, any radiopaque substance 40, including but not limited to, tantalum such as tantalum powder, can be spread along the surface of the tela submucosa, such as on the serosal side. Other radiopaque materials 40 comprise bismuth and barium, including but not limited to, bismuth oxychloride and barium sulphate, as well as other conventional markers. As used herein, the term �disposed� on shall be construed to include disposed on, disposed throughout, disposed in, disposed with, disposed along with, applied on, applied with, applied through, applied in, applied in conjunction with, and the like. With particular reference to tela submucosa, the differential porosity of the material can enable more radiopaque material 40 to be disposed on the tela submucosa.
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