Corporeal access tube assembly and method

• US 6,066,112 A
• Filed: 10/14/1997
• Issued: 05/23/2000
• Est. Priority Date: 01/11/1996
• Status: Expired due to Term

• Current Assignee: Radius International Limited Partnership
• Original Assignee: Radius International Limited Partnership
• Inventors: Quinn, David G.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US08/949,381
• Time in Patent Office: 952 Days
• Field of Search: 604/264, 604/523, 604/500, 604/525, 604/96, 604/533, 604/534, 604/93
• US Class Current: 604/93.01
• CPC Class Codes: A61J 15/0015 Gastrostomy feeding-tubes insertion tools or methods A61B17/34
• CPC Class Codes: A61J 15/0026 Parts, details or accessories for feeding-tubes external tubes from medical containers to a connector outside of the body A61M39/08
• CPC Class Codes: A61J 15/0038 expandable, e.g. umbrella type
• CPC Class Codes: A61J 15/0042 inflatable
• CPC Class Codes: A61J 15/0061 fixing at an intermediate position on the tube, i.e. tube protruding the fixing means
• CPC Class Codes: A61J 15/0073 Multi-lumen tubes
• CPC Class Codes: A61M 2025/0073 Tip designed for influencing the flow or the flow velocity of the fluid, e.g. inserts for twisted or vortex flow general flow characteristics A61M2206/10
• CPC Class Codes: A61M 2025/0233 specifically adapted for attaching to a body wall by means which are on both sides of the wall, e.g. for attaching to an abdominal wall
• CPC Class Codes: A61M 25/005 with embedded materials for reinforcement, e.g. wires, coils, braids
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence

Abstract

A corporeal access assembly including a tube segment having a body formed of silicone rubber and containing a coil spring embedded therein. The silicone rubber has a low durometer hardness of about 35 on the A scale. The tube segments have relatively large diameter liquid flow passages therethrough for all French sizes, from 12Fr to 24Fr. The body wall thickness for all French sizes remains the same. An air lumen is provided in one embodiment of the tube segment, with a set connector attached which has a removable plug for blocking or opening an air passage to a retention balloon.

Claims

1. A corporeal access tube assembly, comprising:

a) a tube segment having a body formed of soft silicone rubber with a durometer hardness on the A scale of less than 60;

b) said body including at least one elongated body portion containing a coil spring extending along its length;

c) said one body portion and said spring forming a generally cylindrical wall having an inner surface defining a liquid flow passage and an outer surface.

2. The corporeal access tube assembly of claim 1 further characterized by and including:

a) a lumen extending through said one body portion.

3. The corporeal access tube assembly of claim 2 further characterized in that:

a) said lumen extends through said one body portion outside of said coil spring and inside of said outer surface.

4. The corporeal access tube assembly of claim 1 further characterized in that:

a) said body includes another body portion which forms a cylindrical wall having an inner surface defining a liquid flow passage and an outer surface, and which does not contain a coil spring;

b) a retention member is fastened to said outer surface of said other body portion; and

c) a bolus is fastened to said other body portion, said bolus having a pocket formed therein for receiving the tip of stylet.

5. The corporeal access tube assembly of claim 3 further characterized in that:

a) said inner surface is cylindrical in cross-section and defines a liquid flow passage through said access tube.

6. The corporeal access tube assembly of claim 5 further characterized in that:

a) the thickness of said wall at the thinnest point on its circumference is no greater than about 0.036 inches.

7. The corporeal access tube assembly of claim 6 further characterized in that:

a) the thickness of said wall at the thickest point on its circumference is no greater than about 0.056 inches.

8. The corporeal access tube assembly of claim 7 further characterized in that:

a) the size of the tube segment is 12 French.

9. The corporeal access tube assembly of claim 7 further characterized in that:

a) the size of the tube segment is 14 French.

10. The corporeal access tube assembly of claim 7 further characterized in that:

a) the size of the tube segment is 16 French.

11. The corporeal access tube assembly of claim 7 further characterized in that:

a) the size of the tube segment is 18 French.

12. The corporeal access tube assembly of claim 7 further characterized in that:

a) the size of the tube segment is 20 French.

13. The corporeal access tube assembly of claim 7 further characterized in that:

a) the size of the tube segment is 22 French.

14. The corporeal access tube assembly of claim 7 further characterized in that:

a) the size of the tube segment is 24 French.

15. The corporeal access tube assembly of claim 7 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

16. The corporeal access tube assembly of claim 2 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

17. The corporeal access tube assembly of claim 3 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

18. The corporeal access tube assembly of claim 4 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

19. The corporeal access tube assembly of claim 5 fixer characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

20. The corporeal access tube assembly of claim 6 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

21. The corporeal access tube assembly of claim 7 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

22. The corporeal access tube assembly of claim 8 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

23. The corporeal access tube assembly of claim 9 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

24. The corporeal access tube assembly of claim 10 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

25. The corporeal access tube assembly of claim 11 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

26. The corporeal access tube assembly of claim 12 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

27. The corporeal access tube assembly of claim 13 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.

28. The corporeal access tube assembly of claim 14 further characterized in that:

a) said body is formed of soft silicone rubber with a durometer hardness on the A scale of about 35.