IP Library Granted Patent US 8,550,737
Granted Patent B2
US 8,550,737 · App. 12/886,070 · Granted Oct 8, 2013

Applicators for dispensing adhesive or sealant material

Inventors: Rafael Ruiz, Sr. (Hudson, NC); Sheng Zhang (Granite Falls, NC); Martin Krauss (Fort Myers, FL)
Assignee: Adhezion Biomedical, LLC
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Quick Facts
Patent No.
US 8,550,737
App. No.
12/886,070
Granted
Oct 8, 2013
Kind
B2
Abstract

An applicator device for storing and dispensing an adhesive or sealant material, which are compatible with irradiation sterilization techniques, the applicator comprising: an applicator body comprising a cutting portion to break the frangible seal of the container for the adhesive, and a grasping and squeezing portion for controlling the flow rate of the adhesive; a container for an adhesive material that is movable relative to the applicator body and is made of materials with high barrier property; and a porous applicator tip that is secured to or frictionally fits into the applicator body.

Claims (30)

1. An applicator, comprising:

an adhesive comprising a cyanoacrylate monomer, a free radical stabilizer in an amount of about 2000 ppm to about 8000 ppm, an anionic stabilizer in an amount of about 10 ppm to about 200 ppm, optionally a polymerization accelerator, and optionally a plasticizing agent,

a body comprising a porous applicator tip, a cutter for breaking a frangible seal on a container containing the adhesive, a channel through which the adhesive flows toward the porous applicator tip, a chamber for housing the container, the chamber in fluid communication with the channel, and a flexible grip for controlling the flow rate of the adhesive through the channel, and

a container comprising an acrylonitrile copolymer or a multi-layer sheet with an acrylonitrile copolymer as the inner-most layer of the sheet, and comprising a frangible seal on one end, thereby containing the adhesive within the container, the container inserted into and being movable within the chamber of the body,

wherein at least the container is sterilized by irradiation, and the adhesive contained within the container does not cure upon irradiation and for at least twelve months of shelf storage thereafter.

2. The applicator according to claim 1 , wherein the acrylonitrile copolymer comprises acrylonitrile and methyl acrylate.

3. The applicator according to claim 1 , wherein the irradiation comprises electron beam, gamma, or X-ray irradiation.

4. The applicator according to claim 1 , wherein the adhesive contained within the container does not cure for at least 24 months of shelf storage after irradiation.

5. The applicator according to claim 1 , wherein the cyanoacrylate monomer is selected from the group consisting of 2-octylcyanoacrylate, n-butyl cyanoacrylate, a mixture of 2-octyl cyanoacrylate and n-butyl cyanoacrylate, and methoxyisopropyl cyanoacrylate.

6. An applicator, comprising:

an adhesive comprising a cyanoacrylate monomer, a free radical stabilizer in an amount of about 2000 ppm to about 8000 ppm, an anionic stabilizer in an amount of about 10 ppm to about 200 ppm, optionally a polymerization accelerator, and optionally a plasticizing agent,

a body comprising a porous applicator tip, a cutter having an opening on each end and a channel between each opening and through the cutter, through which the adhesive flows into a reservoir, the reservoir in fluid communication with the channel and the porous applicator tip, and a flexible grasping portion for controlling the flow rate of the adhesive through the reservoir,

a container comprising an acrylonitrile copolymer or a multi-layer sheet with an acrylonitrile copolymer as the inner-most layer of the sheet, and comprising a frangible seal on one end, thereby containing the adhesive within the container, the container inserted into and being movable within the reservoir of the body;

and

a container mount, onto which the container is attached via the end of the container that does not comprise the frangible seal,

wherein at least the container is sterilized by irradiation, and the adhesive contained within the container does not cure upon irradiation and for at least twelve months of shelf storage thereafter.

7. The applicator according to claim 6 , wherein the acrylonitrile copolymer comprises acrylonitrile and methyl acrylate.

8. The applicator according to claim 6 , wherein the the irradiation comprises electron beam, gamma or X-ray irradiation.

9. The applicator according to claim 6 , wherein the adhesive contained within the container does not cure for at least 24 months of shelf storage after irradiation.

10. The applicator according to claim 6 , wherein the applicator tip comprises a fibrous swab, a sponge, a foam tip, or a brush.

11. The applicator according to claim 6 , wherein the cyanoacrylate monomer is selected from the group consisting of 2-octylcyanoacrylate, n-butyl cyanoacrylate, a mixture of 2-octyl cyanoacrylate and n-butyl cyanoacrylate, and methoxyisopropyl cyanoacrylate.

12. An applicator, comprising:

an adhesive comprising a cyanoacrylate monomer, a free radical stabilizer in an amount of about 2000 ppm to about 8000 ppm, an anionic stabilizer in an amount of about 10 ppm to about 200 ppm, optionally a polymerization accelerator, and optionally a plasticizing agent,

a body comprising an applicator tip selected from the group consisting of a fibrous swab, a sponge swab, foam, and a brush, a container comprising an acrylonitrile copolymer or a multi-layer sheet with an acrylonitrile copolymer as the inner-most layer of the sheet, and comprising a seal on the back end of the container for sealing the adhesive within the container, an air space reducer between the adhesive and the back end seal, and a grasping portion for controlling the flow rate of the adhesive through the body; and

a removable cap covering the applicator tip, wherein the applicator is sterilized by irradiation, and the adhesive contained within the container does not cure upon irradiation and for at least twelve months of shelf storage thereafter.

13. The applicator according to claim 12 , wherein the acrylonitrile copolymer comprises acrylonitrile and methyl acrylate.

14. The applicator according to claim 12 , wherein the irradiation comprises electron beam, gamma, or X-ray irradiation.

15. The applicator according to claim 12 , wherein the adhesive contained within the container does not cure for at least 24 months of shelf storage after irradiation.

16. The applicator according to claim 1 further comprising a finger stopper.

17. The applicator according to claim 12 , wherein the cyanoacrylate monomer is selected from the group consisting of 2-octylcyanoacrylate, n-butyl cyanoacrylate, a mixture of 2-octyl cyanoacrylate and n-butyl cyanoacrylate, and methoxyisopropyl cyanoacrylate.

Assignments (2)
CHANGE OF NAME Recorded Jul 23, 2024
From: ADHEZION BIOMEDICAL, LLC
To: H.B. FULLER MEDICAL ADHESIVE TECHNOLOGIES, LLC.
Reel/Frame 068506/0455 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2010
From: RUIZ, RAFAEL, SR.; ZHANG, SHENG; KRAUSS, MARTIN
To: ADHEZION BIOMEDICAL, LLC
Reel/Frame 025444/0045 →
Continuity (1)
Related Publication 20120070220A1 · Mar 22, 2012