Claims for Patent: 8,673,636

Summary for Patent: 8,673,636

Title:	Method for enzymatic treatment, device and kit used the same
Abstract:	One embodiment provides a method for enzymatic treatment, including the steps of forming a closed space on a local tissue area with a device and infusing an enzyme solution into the closed space for enzymatic treatment. The method according to the embodiment is capable of treating the local tissue area with enzymes for enhancing cell proliferation in the treated tissue area and preventing damage of the adjacent normal tissues. A device and kit used for the method are also provided.
Inventor(s):	Jiang; Ching-Chuan (Taipei, TW), Liao; Chun-Jen (Taipei, TW), Chang; Wen-Hsiang (Hsinchu, TW), Chen; Huang-Chi (Chiayi, TW), Liao; Wei-Ju (Taichung, TW), Wang; Wen-Hsi (Taipei, TW)
Assignee:	Industrial Technology Research Institute (Hsinchu, TW)
Application Number:	13/614,766
Patent Claims:	1. A method for enzymatic treatment, comprising: forming a closed space on a local tissue area, and infusing an enzyme solution into the closed space, wherein the closed space is formed by a device immobilized on a tissue surface, the device comprises a hollow cavity including a first side and a second side at the opposite side, the first side comprises at least two openings, wherein at least one of the at least two openings is an in-put opening, and wherein at least one of the at least two openings is an out-put opening, wherein the at least one in-put opening is connected with an infusion element and wherein the at least one out-put opening is connected with an extraction element, the second side comprises at least one opening, wherein at least one of the at least one openings is immobilized on a tissue surface to form the closed space between the hollow cavity and the tissue surface, and wherein the enzyme solution is infused into the closed space with the infusion element and extracted from the closed space with the extraction element. 2. The method as claimed in claim 1, wherein the infusion element comprises a container part and an infusion opening connected to the input opening for infusing the enzyme solution into the closed space. 3. The method as claimed in claim 1, wherein the extraction element comprises an extraction part and an extraction opening connected to the out-put opening for extracting fluids out from the closed space. 4. The method as claimed in claim 1, wherein the hollow cavity further comprises extrusions on both flanks of the second side for immobilization of the hollow cavity on the tissue surface. 5. The method as claimed in claim 4, wherein the extrusion is 3-5 mm from the flank of the second side. 6. The method as claimed in claim 4, wherein the extrusion is 3-5 mm from the end of the second side. 7. The method as claimed in claim 1, wherein the device is immobilized on the tissue surface by using pre-fixation equipment. 8. The method as claimed in claim 1, wherein the hollow cavity consists of a biocompatible material. 9. The method as claimed in claim 8, wherein the biocompatible material comprises polyether ether ketone (PEEK), stainless steel or silicone. 10. The method as claimed in claim 1, wherein the tissue comprises cartilage tissues, bone tissues or nerve tissues. 11. The method as claimed in claim 1, wherein the enzyme solution comprises collagenase, hyaluronidase, trypsin, lipase, proteinase or a combination thereof. 12. The method as claimed in claim 1, wherein the concentration of the enzyme solution is 2-5 U/ml. 13. The method as claimed in claim 1, wherein the infusion of the enzyme solution takes 5 minutes to 1 hour.

Details for Patent 8,673,636

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Bausch & Lomb Incorporated	VITRASE	hyaluronidase	Injection	021640	05/05/2004		2032-05-04
Bausch & Lomb Incorporated	VITRASE	hyaluronidase	Injection	021640	12/02/2004		2032-05-04
Amphastar Pharmaceuticals, Inc.	AMPHADASE	hyaluronidase	Injection	021665	10/26/2004		2032-05-04