Medical film
First Claim
Patent Images
1. A medical film, comprising:
- a gelatin film, anda reinforcing material made of a biodegradable polymer,wherein the reinforcing material is a warp knitted fabric,the warp knitted fabric is in a form of a mesh with diamond-shaped pores or a mesh with hexagon pores,a unit of stitches of the warp knitted fabric has a vertical length of 0.5 to 8 mm and a horizontal length of 0.5 to 8 mm,a yarn of the warp knitted fabric includes a multifilament yarn and a thickness of the yarn is in a range of 30 denier to 200 denier (33.3 decitex to 222.2 decitex),the reinforcing material is disposed on at least one film surface of the gelatin film so as to extend over an entire area in a plane direction,the reinforcing material is embedded entirely in the gelatin film,the reinforcing material and the gelatin film are integrated due to gelling of gelatin that has infiltrated entirely in an internal part of the reinforcing material, andthe medical film serves as an antiadhesive material.
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Abstract
A medical film that is excellent in biocompatibility and bioabsorbability and has an excellent strength in suturing and bonding is provided. A reinforcing material 12 made of a biodegradable polymer is placed in a gelatin solution so as to allow the solution to infiltrate in the reinforcing material 12 and then the gelatin is dried. This allows the gelatin that has infiltrated entirely in an internal part of the reinforcing material 12 to gel, thereby forming a gelatin film 11. Thus, a medical film 1 in which the reinforcing material 12 and the gelatin film 11 are integrated is obtained. The gelatin film 11 preferably is a cross-linked gelatin film.
1276 Citations
22 Claims
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1. A medical film, comprising:
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a gelatin film, and a reinforcing material made of a biodegradable polymer, wherein the reinforcing material is a warp knitted fabric, the warp knitted fabric is in a form of a mesh with diamond-shaped pores or a mesh with hexagon pores, a unit of stitches of the warp knitted fabric has a vertical length of 0.5 to 8 mm and a horizontal length of 0.5 to 8 mm, a yarn of the warp knitted fabric includes a multifilament yarn and a thickness of the yarn is in a range of 30 denier to 200 denier (33.3 decitex to 222.2 decitex), the reinforcing material is disposed on at least one film surface of the gelatin film so as to extend over an entire area in a plane direction, the reinforcing material is embedded entirely in the gelatin film, the reinforcing material and the gelatin film are integrated due to gelling of gelatin that has infiltrated entirely in an internal part of the reinforcing material, and the medical film serves as an antiadhesive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification