DEVICE FOR DISPENSING MICROLITER QUANTITIES OF A MATERIAL INTO A LONGITUDINALLY EXTENDING WOUND SITE

• US 20120065600A1
• Filed: 09/10/2010
• Published: 03/15/2012
• Est. Priority Date: 09/10/2010
• Status: Abandoned Application

• Current Assignee: Actamax Surgical Materials, LLC (DSM-Firmenich AG)
• Original Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Inventors: ASHMEAD, JAMES WILLIAM, Dimaio, William Gerald Jr., Vincent, Grant L.
• Application Number:
  US12/879,161
• Publication Number:
  US 20120065600A1
• Time in Patent Office: Days
• US Class Current: 604/294
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 2017/00495 for two-component glue
• CPC Class Codes: A61F 9/0008 Introducing ophthalmic products into the ocular cavity or retaining products therein putting in contact lenses A61F9/0061; introducing or retaining media in cavities of the body in general A61M31/00
• CPC Class Codes: A61F 9/0017 implantable in, or in contact with, the eye, e.g. ocular inserts
• 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

A seal-less, hand-held dispensing device for dispensing microliter quantities of a material at a site of a slice wound the edges of which are spaced apart a distance in the range from at least about 0.4 mm to about 0.5 mm comprises: a support platform; first and second hollow members on the platform; and a compatibly sized plunger disposed in each hollow member. Each hollow member has a predetermined maximum outside dimension that is not greater than about 0.4 mm such that both of the hollow members are insertable into a space between the edges of a slice wound without undue disruption of any tissue matter surrounding the site. The largest outside dimension of each compatibly sized plunger being in a range from about eighty percent (80%) to about ninety-five percent (95%) of the largest inside diameter of a hollow member in which it is disposed.

Claims

1. A seal-less, hand-held dispensing device for dispensing microliter quantities of a material at a site of a slice wound having a longitudinal length with first and second edges, the edges being spaced apart a distance H where H is in the range from at least about 0.4 mm to about 0.5 mm, the dispensing device comprising:

a support platform;

a first and a second hollow member disposed on the support platform, the hollow members overhanging a predetermined distance beyond the support platform,

each hollow member having a predetermined maximum outside dimension that is not greater than about 0.4 mm such that both of the hollow members are insertable into a space defined between the first and second edges of a site of a slice wound without undue disruption of any tissue matter surrounding the site;

a plunger disposed in each hollow member, each plunger having a predetermined largest outside dimension that is sized for compatible receipt within its associated hollow member,

the largest outside dimension of each compatibly sized plunger being in a range from about eighty percent (80%) to about ninety-five percent (95%) of the largest inside diameter of a hollow member in which it is disposed; and

an actuator having a thumb actuating surface thereon, the actuator being operatively engagable with each plunger and movable with respect to the support platform through an actuating stroke defined between a fully extended position and a fully closed position,

movement of the actuator through its actuating stroke displacing each compatibly sized plunger with respect to the hollow member in which it is disposed from a first, loaded, position to a second, dispensed, position.

2. The dispensing device of claim 1 wherein the hollow members are tubular cylindrical members each having an outside diameter dimension that lies in the range from about 0.3 mm to about 0.4 mm.

3. The dispensing device of claim 1 wherein hollow members are disposed in side-by-side relationship on the support platform.

4. The dispensing device of claim 3 wherein each hollow member has an axis therethrough, and wherein the axes of the hollow members are substantially parallel to each other.

5. The dispensing device of claim 1 wherein

the inside dimension of both hollow members are equal to each other, and

the outside dimension of both plungers are equal to each other.

6. The dispensing device of claim 5 wherein each plunger has a length greater than the length of the hollow member in which it is received.

7. The dispensing device of claim 1 wherein the support platform further comprises a cover having a cushion disposed therein, the cushion contacted against the hollow members.

8. The dispensing device of claim 1 wherein the support platform includes a baseplate having a pair of resilient spacers, each spacer is disposed in frictional producing engagement with the actuator.

9. A seal-less, hand-held dispensing device for dispensing microliter quantities of a material at a site of a slice wound having a longitudinal length with first and second edges, the edges being spaced apart a distance H where H is in the range from at least about 0.3 mm to about 0.4 mm, the dispensing device comprising:

a support platform;

a first and a second hollow member disposed on the support platform, the hollow members overhanging a predetermined distance beyond the support platform,

each hollow member having a predetermined maximum outside dimension that is not greater than about 0.3 mm such that both of the hollow members are insertable into a space defined between the first and second edges of a site of a slice wound without undue disruption of any tissue matter surrounding the site;

a plunger disposed in each hollow member, each plunger having a predetermined largest outside dimension that is sized for compatible receipt within its associated hollow member, the largest outside dimension of each compatibly sized plunger being in a range from about eighty percent (80%) to about ninety-five percent (95%) of the largest inside diameter of a hollow member in which it is disposed; and

an actuator having a thumb actuating surface thereon, the actuator being operatively engagable with each plunger and movable with respect to the support platform through an actuating stroke defined between a fully extended position and a fully closed position,

movement of the actuator through its actuating stroke displacing each compatibly sized plunger with respect to the hollow member in which it is disposed from a first, loaded, position to a second, dispensed, position.

10. The dispensing device of claim 9 wherein the hollow members are disposed in abutting side-by-side relationship on the support platform.

11. The dispensing device of claim 10 wherein each hollow member has an axis therethrough, and wherein the axes of the hollow members are substantially parallel to each other.

12. The dispensing device of claim 9 wherein

the inside dimension of both hollow members are equal to each other, and

the outside dimension of both plungers are equal to each other.

13. The dispensing device of claim 12 wherein each plunger has a length greater than the length of the hollow member in which it is received.

14. The dispensing device of claim 9 wherein the support platform further comprises a cover having a cushion disposed therein, the cushion contacted against the hollow members.

15. The dispensing device of claim 9 wherein the support platform includes a baseplate having a pair of resilient spacers, each spacer is disposed in frictional producing engagement with the actuator.