IP Library Granted Patent US 9,517,291
Granted Patent B2
US 9,517,291 · App. 14/621,493 · Granted Dec 13, 2016

Medical devices having activated surfaces

Inventors: Nadya Belcheva (Essex Junction, VT); Ferass Abuzaina (Shelton, CT); Amin Elachchabi (Hamden, CT); Mbiya Kapiamba (Cromwell, CT); Ahmad Robert Hadba (Fort Worth, TX)
Assignee: Covidien LP
A61L31/06A61L31/04A61L31/042A61L31/043A61L31/044A61L31/048A61L31/14A61L31/148A61L33/06C08J7/12C08J7/14A61L2400/18C08J2300/16Y10T442/20
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Quick Facts
Patent No.
US 9,517,291
App. No.
14/621,493
Granted
Dec 13, 2016
Kind
B2
Abstract

Implantable biocompatible polymeric medical devices include a substrate with an acid or base-modified surface which is subsequently modified to include click reactive members.

Claims (14)

1. A method of preparing a medical device having an activated surface, the method comprising:

acid-treating at least a portion of a surface of a polymeric medical device to obtain hydrolysis; and

attaching one or more click reactive members to the acid-treated surface of the medical device, wherein the click reactive members are selected from the group consisting of thiols, azides, alkynes, and alkenes.

2. The method according to claim 1 , wherein the acid is selected from the group consisting of HCl, HCl 3 , HCl 4 , H 2 SO 3 , H 2 SO 4 , H 3 PO 4 , HI, HIO 3 , HBr, lactic acid and glycolic acid.

3. The method according to claim 1 , wherein the click reactive member is selected from the group consisting of thiols and alkenes.

4. The method according to claim 1 , wherein the click reactive members are selected from the group consisting of azides and alkynes.

5. The method according to claim 1 , wherein the medical device is selected from the group consisting of monofilament sutures, multifilament sutures, surgical meshes, ligatures, sutures, staples, slings, patches, foams, pellicles, films, barriers, stents, catheters, and inflatable balloons.

6. The method according to claim 1 , wherein the medical device is a surgical mesh.

7. The method according to claim 1 , wherein the medical device comprises a biodegradable polymer selected from collagen, cellulose, poly (amino acids), polysaccharides, hyaluronic acid, copolymers and combinations thereof.

8. The method according to claim 1 , wherein the medical device comprises a non-degradable polymer selected from fluorinated polymers, polyolefins, polyamides, polyurethanes, silicones, polyaryletherketone, copolymers and combinations thereof.

9. The method according to claim 1 , wherein acid-treating at least a portion of a surface of a medical device is conducted at a temperature between 0° C. and a glass transition temperature of a material of the medical device.

10. The method according to claim 1 , wherein the medical device comprises polybutester.

11. The method according to claim 1 , wherein the medical device comprises nylon.

12. The method according to claim 1 , wherein the medical device comprises ultra high molecular weight polyethylene.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 13, 2015
From: BELCHEVA, NADYA; ABUZAINA, FERASS; ELACHCHABI, AMIN; KAPIAMBA, MBIYA; HADBA, AHMAD ROBERT
To: TYCO HEALTHCARE GROUP LP
Reel/Frame 034957/0236 →
CHANGE OF NAME Recorded Feb 13, 2015
From: TYCO HEALTHCARE GROUP LP
To: COVIDIEN LP
Reel/Frame 034995/0777 →
Continuity (3)
Division 13202373
Provisional Application 61154376 · Feb 21, 2009
Related Publication 20150157769A1 · Jun 11, 2015