Surgical implant

A surgical implant and implant technology, applied in the field of surgical implants, can solve the problems of poor treatment effect and inconvenient use of implants.

Active Publication Date: 2010-05-26
JOHNSON & JOHNSON MEDICAL GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] These implants are sometimes inconvenient to use and do not work well

Method used

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  • Surgical implant
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0030] Fig. 1 is a schematic longitudinal cross-sectional view of an embodiment of a surgical implant with two-stage protrusions that does not match the actual size ratio. Fig. 2 is a top view of this embodiment.

[0031] The implant includes a surface base structure 1, a protrusion 2 and a protrusion 3 whose height (thickness) relative to the plane defined by the top surface of the base structure 1 is higher than the height of the protrusion 2. In the illustrated embodiment, the base structure 1 and the two protrusions 2 and 3 are integrally formed with a shaped loop spacer knitted fabric, which will be described in detail below. 1 and 2, the surface defining the base structure 1 and the protrusions 2 and 3 in a plan view is denoted by A, A2, and A3.

[0032] The formed loop spacer knitted fabric used in this example and the following examples was produced on Mayer's double-needle Raschel knitting machine (with 3-6 needle boards) RD6N. The base structure with different patterns ...

example 2

[0055] Figure 7 It is a schematic diagram of another embodiment of a surgical implant (not to scale). In this example, the surface base structure 10 of the implant is a flexible mesh 12, on which a protrusion 14 in the shape of a champagne bottle stopper made of a shaped loop spacer knitted fabric is connected. The protrusion 14 is divided into two parts, namely, a connecting portion 15 formed by a brim-shaped connecting area 16 carried on the mesh 12 and a frusto-conical middle portion 17, and a widened portion 18 connected separately. The widened part 18 is firmly sewn on the middle part 17.

[0056] In the illustrated embodiment, the mesh 12 is an "Ultrapro" mesh (Ethicon made of absorbable monofilament "Monocryl" (see above) and non-absorbable monofilament "Prolene" (polypropylene; see above) ) The trademark of the synthetic mesh produced), the size of which is about 90mm×150mm, with rounded corners.

[0057] The protrusion 14 in the illustrated embodiment is composed of two...

example 3

[0073] Figure 8 It is a schematic longitudinal sectional view of another embodiment of a surgical implant 20 with filler.

[0074] The base structure 21 of the implant 20 is composed of two layers of partially absorbent knitted fabrics 22, 23, with an absorbable film 24 (used as a bonding device) between the two layers. A suitable material for the layers 22 and 23 is, for example, an "Ultrapro" mesh, but it can also be a mesh with a higher content of "Monocryl" (so that it has good thermoformability and is easy to handle). The layer 23 is thermally deformed into a truncated cone shape, thereby forming a protrusion 26, so a part of the layer 23 belongs to the protrusion 26. The protrusion 26 contains a mixture of absorbable materials with different melting points used as fillers, one part is used to connect with the base structure, and the other part is used as a filler with a certain compressibility and absorbing liquid. The filler 28 is held together by a textile sleeve 29.

...

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PUM

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Abstract

A surgical implant (10) has an areal base structure (12) and at least one projection (14) which is absorbable or partially absorbable and which is designed to take up at least half the implant's own weight of body fluids. In a preferred embodiment, the projection (14) has an attachment area (16) which is sited on the base structure (12) and which is adjoined by a cylindrical or frustoconical middle part (17), pointing away from the base structure (12), followed by a widening (18) arranged at the end remote from the base structure (12).

Description

Technical field [0001] The invention relates to a surgical implant which is particularly suitable for sealing and covering mammalian soft tissue defects. Background technique [0002] Surgical implants for repairing soft tissue defects such as hernias are well known. The surgical implants include a three-dimensional area extending over a surface mesh structure. For example, EP 0621014B1 discloses two parallel mesh parts, the middle area of ​​the two parallel mesh parts is kept at a certain distance by a shaped loop spacer knitted fabric. WO 2004 / 017869A1 discloses an implant that is similar in geometry. In EP 0999805B1, a three-dimensional formed loop spacer knitted fabric is disclosed, in which a channel is formed between two opposite porous sides. An implant disclosed in WO 01 / 80773 A1 has a surface base structure with a foldable protrusion in the middle. [0003] These implants are sometimes inconvenient to use and the treatment effect is not good. Summary of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/00
CPCD04B21/12A61F2002/0068D10B2403/0222D10B2509/08D10B2403/0223A61F2/0063D04B21/16A61F2/00
Inventor C·沃瑟B·舒尔特-亨普S·沃勒特
Owner JOHNSON & JOHNSON MEDICAL GMBH
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