Surgical coated needles

Patent metadata

Field	Value
Publication number	US-11197666-B2
Application number	US-201816053221-A
Country	US
Kind code	B2
Filing date	Aug 2, 2018
Priority date	Sep 15, 2017
Publication date	Dec 14, 2021
Grant date	Dec 14, 2021

Abstract

Systems and methods for coating surgical needles are provided.

First claim

What is claimed is:

1. A system for coating a surgical needle, the system comprising:
a first coating system that is configured to apply at least one of a primer coat and a base coat to a first portion of a surgical needle blank;
a laser drilling system that is configured to create a suture attachment end within a second portion of the surgical needle blank, thereby forming a surgical needle having first and second portions that correspond to the first and second portions of the surgical needle blank, the second portion being uncoated; and
a second coating system that is configured to apply a top coat to the first and second portions of the surgical needle, the second coating system includes a basket configured to house the surgical needle during application of the top coat, the basket having a base portion, a top portion, and a first and a second pair of opposing sidewalls each extending from the base portion to the top portion, thereby defining a total surface area of the basket, the basket having a drainage area that is from 50% to about 95% of the total surface area.

2. The system of claim 1 , further comprising a first drying system that is configured to remove at least a portion of excess top coat from the surgical needle, and the drying system includes a vacuum drying chamber.

3. The system of claim 1 , further comprising a second drying system that is configured to remove at a least a portion of solvent from the top coat.

4. The system of claim 1 , further comprising a curing system that is configured to at least partially cure at least one of the primer coat and the base coat.

5. The system of claim 1 , wherein the first coating system is a spray coating system.

6. The system of claim 1 , wherein the base portion includes a porous substrate that is configured to retain the surgical needle within the basket and allow at least a portion of excess top coat to pass therethrough.

7. The system of claim 6 , wherein the top portion includes a porous substrate that is configured to allow air to pass therethrough.

8. The system of claim 7 , wherein each sidewall has an inner surface and an outer surface with one or more drainage holes extending therebetween, the one or more drainage holes being configured to allow at least a portion of excess top coat to pass therethrough, and wherein the one or more drainage holes remain open when the top portion is in contact with the inner surfaces.

9. The system of claim 1 , wherein the surgical needle blank is formed from a tungsten-rhenium alloy.

10. The system of claim 1 , wherein the suture attachment end is a bore hole.

11. A system for coating a surgical needle, the system comprising:
a surgical needle blank having a first portion and a second portion, the first portion being coated with at least one first coating and the second portion being uncoated;
a laser drilling system that is configured to create a suture attachment end within a second portion of the surgical needle blank, thereby forming a surgical needle having first and second portions that correspond to the first and second portions of the surgical needle blank; and
a first coating system that is configured to apply a second coating to at least the second portion of the surgical needle, the first coating system includes a basket configured to house the surgical needle during application of the second coating, the basket having a drainage area that is from 50% to about 95% of a total surface area of the basket.

12. The system of claim 11 , wherein the at least one first coating comprises at least one of a primer coat and a base coat.

13. The system of claim 11 , further comprising a second coating system that is configured to apply the at least one first coating to the first portion of the surgical needle blank.

14. The system of claim 13 , wherein the second coating system is a spray coating system.

15. The system of claim 11 , further comprising a first drying system that is configured to remove at least a portion of excess second coating from the surgical needle, and the drying system includes a vacuum drying chamber.

16. The system of claim 11 , further comprising a second drying system that is configured to remove at a least a portion of solvent from the second coating.

17. The system of claim 11 , further comprising a curing system that is configured to at least partially cure the first coating.

18. The system of claim 11 , wherein the surgical needle blank is formed from a tungsten-rhenium alloy.

19. The system of claim 11 , wherein the suture attachment end is a bore hole.

Assignees

• Ethicon Llc
• Cilag Gmbh Int

Inventors

• Ou Duan Li
• Cichocki Frank
• Nguyen Thien

Classifications

• A61B2017/00849

  with respect to tissue, e.g. hollow organs · CPC title

• A61B2017/00526

  Methods of manufacturing · CPC title

• B05D3/0493

  using vacuum · CPC title

• B05D1/18

  performed by dipping · CPC title

• B23K26/389

  of fluid openings, e.g. nozzles, jets · CPC title