IR tube sealer and methods sealing a tube

Patent metadata

Field	Value
Publication number	US-10569475-B2
Application number	US-201514966967-A
Country	US
Kind code	B2
Filing date	Dec 11, 2015
Priority date	Dec 12, 2014
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

Embodiments of the present disclosure are directed to an IR tube sealing device and method of sealing a polymer tube with infrared energy. In particular embodiments, the IR tube sealing device can be a portable, hand-held device adapted to receive and compress a polymer tube, and produce and direct infrared energy toward the compressed polymer tube to quickly form a permanent aseptic seal.

First claim

What is claimed is:

1. An IR polymer tube sealing apparatus, the apparatus comprising:
a. an IR lamp assembly; and
b. a first contact plate and a second contact plate, wherein the first and second contact plates are adapted to reduce the distance between opposing side walls of a polymer tube; and
c. a handle and a button positioned on the handle such that a user can hold the claimed apparatus and press the button at the same time with a single hand,
wherein the apparatus is adapted to permanently weld together opposing sidewalls of a polymer tube and form an aseptic seal using the infrared radiation produced by the IR lamp assembly, wherein the first and second contact plates are configured to contact the polymer tube, and wherein at least one of the first contact plate or the second contact plate contains a seal region which allows infrared energy produced by the IR lamp assembly to substantially passes through at least one of the first contact plate or the second contact plate, wherein the IR polymer tube sealing apparatus is portable, wherein the IR lamp assembly comprises a first IR lamp assembly and a second IR lamp assembly, wherein the entire apparatus is hand-held, wherein the IR polymer tube sealing apparatus has a weight of less than about 10 lbs.

2. The apparatus of claim 1 , wherein the seal forms an air tight seal as measured at 3 psi, 5 psi, 10 psi, and 15 psi for 30 minutes.

3. The apparatus of claim 1 , wherein a content of defects having a longest dimension of at least 0.5 mm of no greater than 3 defects per square centimeter.

4. The apparatus of claim 1 , wherein the IR polymer tube sealing apparatus has a seal time of no greater than 120 seconds as measured according to the Sealing Time test under Sealing Time Test Condition 1, Sealing Time Test Condition 2, Sealing Time Test Condition 3, Sealing Time Test Condition 4, Sealing Time Test Condition 5, Sealing Time Test Condition 6, or a combination thereof.

5. The apparatus of claim 1 , wherein the apparatus is a portable, handheld IR polymer tube sealing apparatus.

6. The apparatus of claim 1 , wherein the apparatus is adapted to perform at least 30 consecutive sealing cycles while disconnected from an external power source, as measured according to the Consecutive Sealing Cycle Time test, under Consecutive Battery Sealing Test Condition 1, Consecutive Battery Sealing Test Condition 2, Consecutive Battery Sealing Test Condition 3, or a combination thereof, and wherein each of the at least 30 consecutive sealing cycles is performed in less than 120 seconds.

7. The apparatus of claim 1 , wherein the apparatus is adapted to permanently seal together opposing sidewalls of the polymer tube using the infrared energy produced by the IR lamp assembly, and wherein the apparatus is adapted to release the force applied by the mechanism within 20 seconds after formation of the seal has been completed.

8. The apparatus of claim 1 , wherein the first IR lamp assembly is disposed generally opposite from the second IR lamp assembly such that infrared energy produced by each of the first and second IR lamp assemblies are directed toward each other.

9. The apparatus of claim 1 , wherein the apparatus comprises a first IR lamp assembly and a second IR lamp assembly, and wherein the apparatus is adapted to receive and compress a polymer tube between the first IR lamp assembly and the second IR lamp assembly.

10. The apparatus of claim 1 , wherein the apparatus comprises a first IR lamp assembly comprising an IR lamp and a second IR lamp assembly comprising an energy redirector, wherein the energy redirector is adapted to redirect energy from the IR lamp of the first IR lamp assembly.

11. The apparatus of claim 1 , wherein an inner cavity of the polymer tube is aseptic during sealing.

12. The apparatus of claim 1 , wherein the apparatus is adapted to maintain the sterility of an inner cavity of the polymer tube after sealing.

13. The apparatus of claim 1 , wherein the seal is essentially free of defects having a longest dimension of at least 0.5 mm.

14. The apparatus of claim 1 , wherein the polymer tube comprises a thermoplastic, a thermoplastic elastomer (TPE), a braided TPE, a thermoplastic vulcanizate (TPV), or combinations thereof.

15. The apparatus of claim 1 , wherein the apparatus is adapted to seal a biopharmaceutical tube.

16. The apparatus of claim 1 , wherein the first contact plate and the second contact plate contact the polymer tube and contain a seal region which allows the infrared energy to pass through at least one of the first contact plate or the second contact plate and interact with the polymer tube.

17. The apparatus of claim 1 , further comprising a handle.

18. A IR polymer tube sealing apparatus, the apparatus comprising:
a. a first IR lamp assembly and a first contact plate, wherein the first IR lamp assembly is adapted to produce infrared energy and is directed toward the contact plate;
b. a second IR lamp assembly and a second contact plate, wherein the second IR lamp assembly is adapted to produce infrared energy and direct the infrared energy toward the second contact plate; and
c. a handle and a button positioned on the handle such that a user can hold the claimed apparatus and press the button at the same time with a single hand, wherein the first and second IR lamp assemblies are disposed generally opposite each other; wherein the IR polymer tube sealing apparatus is adapted to receive and compress a polymer tube between the first and second contact plates; and
wherein the IR polymer tube sealing apparatus is adapted to form a seal on the polymer tube through application of infrared energy toward the polymer tube, wherein the IR polymer tube sealing apparatus is portable, wherein the entire apparatus is hand-held, wherein the IR polymer tube sealing apparatus has a weight of less than about 10 lbs.

Assignees

• Saint Gobain Performance Plastics Corp

Inventors

• Cassiday Bryan
• Pagliaro Jr Anthony P
• Chapman Jason B
• Siddhamalli Sridhar K

Classifications

• B29C66/4312

  for making flat seams in tubular or hollow articles, e.g. transversal seams · CPC title

• B29C66/81267

  Transparent to electromagnetic radiation, e.g. to visible light · CPC title

• B29C66/7392

  characterised by the material of at least one of the parts being a thermoplastic · CPC title

• B29C65/8253

  by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays (B29C65/8292 takes precedence) · CPC title

• B29C66/857

  Medical tube welding machines · CPC title