Retention balloon for a corporeal access tube assembly

• US 6,077,243 A
• Filed: 10/19/1998
• Issued: 06/20/2000
• Est. Priority Date: 01/11/1996
• Status: Expired due to Term

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Quinn, David G.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US09/174,722
• Time in Patent Office: 610 Days
• Field of Search: 604/174, 604/93, 604/153, 604/176, 604/264, 604/180, 604/523, 128/DIG. 26
• US Class Current: 604/93.01
• CPC Class Codes: A61B 2017/3486 Balloon
• CPC Class Codes: A61J 15/0015 Gastrostomy feeding-tubes insertion tools or methods A61B17/34
• 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: 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 2025/1065 having a balloon which is inversely attached to the shaft at the distal or proximal end
• CPC Class Codes: A61M 25/005 with embedded materials for reinforcement, e.g. wires, coils, braids
• CPC Class Codes: A61M 25/0067 characterised by the distal end, e.g. tips A61M25/0054, A61M25/04 take precedence; balloon catheters A61M25/10
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: Y10S 128/26 Cannula supporters

Abstract

An improvement in an internal bolster for a corporeal access tube assembly wherein a retention balloon is preformed of relatively thick silicone rubber film. The balloon includes parallel front and rear sidewalls connected by a semi-circular treadwall, the front sidewall having a front retention surface thereon with a radial width equal to the radius of the treadwall. Annular sleeves at the inner periphery of each sidewall are sealed to the outer surface of a tube segment. Each sleeve extends forwardly of its corresponding sidewall.

Claims

1. In a corporeal access tube assembly including a tube segment having an outer surface, the improvement in an internal bolster comprising:

a) a retention balloon mounted on said tube segment and being preformed so as to extend radially outwardly from said tube segment;

b) said balloon containing a gas under substantially ambient pressure which supports the balloon in said preformed configuration;

c) said balloon in said preformed configuration including a generally tire-shaped casing having front and rear sidewalls extending generally parallel to each other;

d) said balloon further including an annular, inner bead on each of said sidewalls and fastened to said outer surface of said tube segment;

e) said annular inner bead on said rear wall comprising a cylindrical sleeve extending from said rear wall toward said front wall.

2. The improvement in an internal bolster for a corporeal access tube assembly of claim 1 further characterized in that:

a) said preformed retention balloon, including said beads, is formed in one piece of silicone rubber;

b) the thickness of said sidewalls being at least 0.020 inches.

3. The improvement in an internal bolster for a corporeal access tube assembly of claim 2 further characterized in that:

a) the thickness of said rear sidewall sleeve is less than the thickness of said sidewalls.

4. The improvement in an internal bolster for a corporeal access tube assembly of claim 1 further characterized in that:

a) said balloon further includes a treadwall interconnecting said front and rear sidewalls;

b) said treadwall having an outer surface forming a semi-circle in cross-section;

c) a flat retention surface formed on said front sidewall; and

d) said flat retention surface having a width which is substantially equal to the radius of said semi-circle.

5. The improvement in an internal bolster for a corporeal access tube assembly of claim 4 further characterized in that:

a) said balloon is preformed of silicone rubber.

6. The improvement in an internal bolster for a corporeal access tube assembly of claim 5 further characterized in that

a) the thickness of said sidewalls and treadwall being at least 0.020 inches.

7. The improvement in an internal bolster for a corporeal access assembly of claim 6 further characterized in that

a) the thickness of said sidewalls and treadwalls being about 0.030 inches.

8. In a corporeal access tube assembly including a 20 French tube segment having an outer surface, the improvement in an internal bolster comprising:

a) silicone rubber retention balloon mounted on said 20 French tube segment and being preformed so as to extend radially outwardly from said tube segment;

b) said balloon containing a gas under substantially ambient pressure which supports the balloon in said preformed configuration;

c) said balloon in said preformed configuration including a generally tire-shaped casing having front and rear sidewalls extending generally parallel to each other, and a treadwall with a semi-circular cross-section connecting them;

d) said balloon further including an annular, inner bead on each of said sidewalls and fastened to said outer surface of said tube segment;

e) said front and rear sidewalls having front and rear surfaces formed thereon, said front surface forming a flat retention surface with a radial width of about 0.169 inches.

9. The improvement in an internal bolster for a corporeal access tube assembly of claim 8 further characterized in that:

a) said treadwall has a semi-circular cross-sectional configuration and a outer surface with a radius of about 0.169 inches.

10. The improvement in an internal bolster for a corporeal access tube assembly of claim 9 further characterized in that:

a) the thickness of said sidewalls and treadwalls being about 0.030 inches.

11. The improvement in an internal bolster for a corporeal access tube assembly of claim 10 further characterized in that:

a) said annular inner bead on said rear wall comprises a cylindrical sleeve extending from said rear wall toward said front wall.

12. In a corporeal access tube assembly including a 14 French tube segment having an outer surface, the improvement in an internal bolster comprising:

a) a silicone rubber retention balloon mounted on said 20 French tube segment and being preformed so as to extend radially outwardly from said tube segment;

b) said balloon containing a gas under substantially ambient pressure which supports the balloon in said preformed configuration;

c) said balloon in said preformed configuration including a generally tire-shaped casing having front and rear sidewalls extending generally parallel to each other, and a treadwall with a semi-circular cross-section connecting them;

d) said balloon further including an annular, inner bead on each of said sidewalls and fastened to said outer surface of said tube segment;

e) said front and rear sidewalls having front and rear surfaces formed thereon, said front surface forming a retention surface with a radial width of about 0.125 inches.

13. The improvement in an internal bolster for a corporeal access tube assembly of claim 12 further characterized in that:

a) said treadwall has a shaped outer surface with a semi-circular cross-sectional configuration and a radius of about 0.169 inches.

14. The improvement in an internal bolster for a corporeal access tube assembly of claim 13 further characterized in that:

a) the thickness of said sidewalls and treadwalls being about 0.030 inches.

15. The improvement in an internal bolster for a corporeal access tube assembly of claim 12 further characterized in that:

a) said annular inner bead on said rear wall comprises a cylindrical sleeve extending from said rear wall toward said front wall.