DEVICE FOR DELIVERING ADHESIVE

• US 20110062189A1
• Filed: 05/19/2010
• Published: 03/17/2011
• Est. Priority Date: 05/19/2009
• Status: Active Grant

• Current Assignee: Arthrex Incorporated
• Original Assignee: Cohera Medical, Inc.:
• Inventors: Tanaka, Kazuna, Focht, Kenneth Allen, Kapec, Jeffrey S., Naoi, Yukiko, Liepold, Gerhardt
• Granted Patent: US 8,950,629 B2
• Time in Patent Office: Days
• US Class Current: 222/326
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61M 35/003 Portable hand-held applicators having means for dispensing or spreading integral media hand-held massage devices with liquid delivery A61H7/003

Abstract

This document relates to delivery devices for dispensing fluid materials, including high viscosity fluids such as high viscosity surgical adhesives. For example, methods and materials for an integrated system of containing and permitting point of use delivery of a high viscosity adhesive fluid onto a planar surface of tissue during a surgical procedure are provided.

Claims

1. A delivery device for applying two or more drops of a viscous fluid to a surface, wherein said delivery device comprises:

(a) an actuator portion comprising an actuator and a push rod, wherein said actuator portion is configured to advance said push rod when a user actuates said actuator,

(b) a cartridge housing configured to receive a cartridge containing said viscous fluid, wherein said cartridge housing is attached to said actuator portion such that said push rod is capable of advancing into said cartridge when said cartridge is positioned within said cartridge housing, and

(c) a tip releasably engaged to said cartridge housing, wherein said tip comprises two or more tubular members configured to allow said viscous fluid to move from said cartridge to said surface when said user actuates said actuator,

wherein a single actuation of said actuator is capable of dispensing a single drop of said viscous fluid from each of said tubular members at the same time, wherein the volume of each of said dispensed drops is substantially similar.

2. The delivery device of claim 1, wherein said viscous fluid has a viscosity of 1000 cP.

3. The delivery device of claim 1, wherein said push rod is capable of advancing into said cartridge when a user actuates said actuator and is restricted from retreating when the user releases said actuator.

4. The delivery device of claim 1, wherein said tip comprises three tubular members configured to allow said viscous fluid to move from said cartridge to said surface when said user actuates said actuator.

5. The delivery device of claim 4, wherein the distal tips of said tubular members are configured in a linear line and are sequentially spaced apart from each other at a substantially similar distance.

6. The delivery device of claim 5, wherein said tip comprises a spacing gauge configured to allow said user to align a second set of dispensed drops a predefined distance from a first set of dispensed drops.

7. The delivery device of claim 6, wherein a distal tip of said spacing gauge is positioned, from said linear line, at a distance similar to said substantially similar distance.

8. The delivery device of claim 1, wherein said tip comprises a spacing gauge configured to allow said user to align a second set of dispensed drops a predefined distance from a first set of dispensed drops.

9. The delivery device of claim 1, wherein said cartridge comprises a distal end, a proximal end, and a plunger located within said cartridge near to said proximal end, wherein said proximal end comprises a seal, and wherein said push rod is configured to engage said plunger.

10. The delivery device of claim 9, wherein a distal end of said push rod comprises a seal piercing element.

11. A delivery device for applying two or more drops of a viscous fluid to a surface, wherein said delivery device comprises:

(a) a push rod,

(b) an actuator, wherein said actuator is configured to advance said push rod when a user actuates said actuator,

(c) a cartridge housing portion configured to house a cartridge containing said viscous fluid, wherein said push rod is capable of advancing into said cartridge when said cartridge is positioned within said cartridge housing, and

(d) a tip located at a distal end of said delivery device, wherein said tip comprises two or more tubular members configured to allow said viscous fluid to move from said cartridge to said surface when said user actuates said actuator,

wherein a single actuation of said actuator is capable of dispensing a single drop of said viscous fluid from each of said tubular members at the same time, wherein the volume of each of said dispensed drops is substantially similar.

12. The delivery device of claim 11, wherein said viscous fluid has a viscosity of 1000 cP.

13. The delivery device of claim 11, wherein said cartridge comprises a distal end, a proximal end, and a plunger located within said cartridge near to said proximal end, wherein said proximal end comprises a seal, and wherein said push rod is configured to engage said plunger.

14. The delivery device of claim 13, wherein a distal end of said push rod comprises a seal piercing element.

15. The delivery device of claim 14, wherein said seal piercing element comprises at least six extensions.

16. The delivery device of claim 14, wherein said seal piercing element is configured to pierce said seal of said proximal end of said cartridge.

17. The delivery device of claim 11, wherein said cartridge comprises a distal end and a proximal end, wherein said distal end comprises a seal, and wherein a distal portion of said delivery device comprises a piercing element configured to pierce said seal of said distal end of said cartridge as said cartridge is advanced from one location within said delivery device toward the distal end of said delivery device.

18. The delivery device of claim 17, wherein said delivery device comprises an actuator ring configured to advanced said cartridge from one location within said delivery device toward the distal end of said delivery device as said actuator ring is rotated.

19. A system for filling a cartridge with a viscous fluid, wherein said system comprises:

(a) a vessel comprising said viscous fluid, wherein said viscous fluid in said vessel is under pressure greater than 20 psi and has a temperature no more than 5°

C.,

(b) a cartridge configured to receive said viscous fluid, and

(c) a flow path for delivering said viscous fluid from said vessel to said cartridge, wherein the diameter of said flow path is the same from said vessel to said cartridge.

20. The system of claim 19, wherein said pressure is about 40 psi.