IP Library › Granted Patent US 12673134
Granted Patent B2
US 12673134 · App. 18/276,124 · Granted Jul 7, 2026

Gelatin-containing device

Inventors: Shuhei Kanesato (Tokyo, JP); Yoshihiro Kimura (Osaka, JP); Akinobu Oharuda (Osaka, JP); Masafumi Goto (Miyagi, JP)
Assignees: SHIN-ETSU CHEMICAL CO., LTD.; JAPAN VAM & POVAL CO., LTD.; TOHOKU UNIVERSITY; KYOTO MEDICAL PLANNING CO., LTD.
A61L27/222A61L27/38A61L27/58
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Quick Facts
Patent No.
US 12673134
App. No.
18/276,124
Granted
Jul 7, 2026
Kind
B2
Abstract

Provided is a novel device (implantation device) containing a gelatin. The implantation device is made of a bioabsorbable non-woven fabric containing a gelatin.

Claims (16)

1 . An implantation device comprising a bioabsorbable non-woven fabric containing a gelatin, wherein the non-woven fabric has a compressive deformation of 40% or less as measured when the non-woven fabric in a water-swollen state is compressed with a stress of 1.0 kPa.

2 . The device according to claim 1 , wherein the non-woven fabric has been subjected to crosslinking.

3 . The implantation device of claim 1 wherein the non-woven fabric has a visible light transmittance of 10% or more as measured on the non-woven fabric in a water-swollen state.

4 . The device according to claim 1 , wherein the non-woven fabric has a water content of 200% by mass or less as measured on the non-woven fabric in the water-swollen state.

5 . The implantation device of claim 1 wherein the non-woven fabric has a diameter that varies in a longitudinal direction of the non-woven fabric.

6 . The implantation device of claim 1 wherein fibers in the non-woven fabric are partially fusion bonded at intersections of the fibers.

7 . The device according to claim 1 , wherein the non-woven fabric has a mean fiber diameter (D) of 1 to 70 μm, and wherein the mean fiber diameter varies within a range of D−0.5D≤D≤D+0.5D.

8 . The implantation device of claim 1 wherein the non-woven fabric forms at least part of a surface of the device.

9 . The implantation device of claim 1 wherein the device comprises a non-woven fabric and a non-bioabsorbable material.

10 . The device according to claim 9 , wherein the non-woven fabric is integrated with the non-bioabsorbable material.

11 . The device according to claim 9 , wherein the non-bioabsorbable material is contained in an amount of 1 part by volume or more relative to 100 parts by volume of the non-woven fabric.

12 . The device according to claim 10 , wherein the non-bioabsorbable material is contained in an amount of 10 parts by volume or more relative to 100 parts by volume of the non-woven fabric, and wherein the non-woven fabric forms at least part of a surface of the device.

13 . The device according to claim 9 , wherein the non-bioabsorbable material has an adhesion preventive ability.

14 . The device according to claim 1 , wherein the device is substantially free of growth factors.

15 . A method for implanting the device according to claim 1 , comprising implanting the device into an implantation site.

16 . The method according to claim 15 , wherein the implantation site is a subcutaneous site.