Implant

• US 7,156,858 B2
• Filed: 02/21/2001
• Issued: 01/02/2007
• Est. Priority Date: 04/20/2000
• Status: Expired due to Term

• Current Assignee: Johnson & Johnson Medical GmbH (Johnson & Johnson)
• Original Assignee: Johnson & Johnson Medical GmbH (Johnson & Johnson)
• Inventors: Walther, Christoph, Schuldt-Hempe, Barbara
• Primary Examiner(s): Hayes; Michael J.
• Application Number:
  US10/257,432
• Publication Number:
  US 20030100954A1
• Time in Patent Office: 2,141 Days
• Field of Search: 606/151
• US Class Current: 606/151
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes
• CPC Class Codes: A61F 2002/0068 having a special mesh pattern
• CPC Class Codes: A61F 2210/0004 bioabsorbable
• CPC Class Codes: A61F 2250/0018 differing in elasticity, stiffness or compressibility
• CPC Class Codes: D04B 1/104 Openwork fabric, e.g. pelerine fabrics
• CPC Class Codes: D04B 1/12 characterised by thread material
• CPC Class Codes: D04B 21/08 characterised by thread material
• CPC Class Codes: D04B 21/12 characterised by thread material
• CPC Class Codes: D10B 2509/08 Hernia repair mesh

Abstract

An implant (1) has an areal basic structure made from weft-knitted or warp-knitted fabric which has a greater extendability in a central area (3) than in the peripheral area (4) of the implant (1). The basic structure can be deformed in the central area (3) of the implant (1) to produce a projection (30) into the third dimension. The implant (1) preferably has a stiffening structure (22, 24) in the area of the free end (32) of the projection (30). The implant (1) is particularly suitable for treating hernias.

Claims

1. An implant, comprising a central area deformed to produce a broadened mushroom-like projection or a projection in the form of a hollow protuberance, the projection having a free end and a stiffening structure at the free end, the implant further comprising a peripheral area, wherein the mass per unit area of the central area is less than in the peripheral area.

2. The implant according to claim 1, wherein the projection is the hollow protruberance.

3. The implant according to claim 1, wherein the projection is dimensionally stabilized.

4. The implant according to claim 3, wherein the stiffening structure is annular or disc-like.

5. The implant according to claim 3, wherein the stiffening structure can be folded.

6. The implant according to claim 5, wherein the stiffening structure is expandable automatically from a folded state into an unfolded state.

7. The implant according to claim 6, wherein the stiffening structure has an annular or disc-like support from the periphery of which several elastic arcs extend, distributed over the circumference.

8. The implant according to claim 7, wherein the elastic arcs consist of thread material.

9. The implant according to claim 1, wherein the shape of the central area is selected from the group consisting of a square, rectangular, cruciform, polygonal or circle.