BODY-RETAINED CATHETER

• US 3,726,283 A
• Filed: 10/07/1971
• Issued: 04/10/1973
• Est. Priority Date: 10/07/1971
• Status: Expired due to Term

• Current Assignee: John F. Dye, William J. Binard
• Original Assignee: John F. Dye, William J. Binard
• Inventors: Dye, John F., Binard, William J.
• Primary Examiner(s): Medbery, Aldrich F.
• Application Number:
  US05/187,370
• Time in Patent Office: 551 Days
• Field of Search: 128/348,246,349,351,350,349BV
• US Class Current: 604/99.03
• CPC Class Codes: A61M 2025/0076 Unidirectional valves
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 25/0075 Valve means
• CPC Class Codes: A61M 25/09025 with sliding mandrils
• 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

Abstract

An improved Foley-type catheter which is inflated through the drainage lumen. One-way valves separating both the retention balloon and the drainage lumen eyes from the drainage lumen permit a permanent, flexible and unobstructed construction of the catheter which thus lacks side arms and separate inflation lumen. An alternative arrangement provides for both inflation and deflation of the balloon through both the drainage lumen and a short passageway in the distal end of the catheter.

Claims

1. In a flexible body cavity liquid drainage device having a proximal end, a distal end, at least one drainage eye in said distal end for draining the cavity, a liquid drainage lumen extending from said eye to said proximal end, and inflatable retaining means longitudinally spaced from said eye for retaining said distal end within the body cavity;

the improvement further comprising means for inflating said retaining means by fluid flowing through said lumen from said proximal end, said inflating means including means secured to said device adjacent the distal end for blocking fluid flow out through said eye and said distal end from said lumen, said inflating means permitting unobstructed fluid flow through said lumen from said proximal end to said retaining means during said inflating, whereby said inflating means can be inflated through said drainage lumen free of undesired internal constrictions even when inserted into substantially non-linear body ducts.

2. The improved drainage device as defined in claim 1, wherein said blocking means is permanently retained within said distal end.

3. The improved drainage device as defined in claim 1, wherein said blocking means includes a one-way valve positioned adjacent to said eye, said valve permitting flow into said lumen through said eye from outside said device but not in the reverse direction.

4. The improved drainage device as defined in claim 1, wherein said blocking means comprises an external temporary shield overlying said drainage eye.

5. The improved drainage device as defined in claim 1, wherein said blocking means includes a soluble pluglike member mounted so as to temporarily block fluid flow through said eye, said member being especially adapted to dissolve after a period of time by the fluids coming into contact with said blocking means, said period being at least sufficient to permit injection of fluid into said retaining means through said lumen.

6. The improved drainage device as defined in claim 1, wherein said inflating means includes further means for blocking fluid flowing from said retaining means to said lumen, and for overriding said blocking means.

7. The improved drainage device as defined in claim 6, wherein said further blocking means includes a oneway flap valve operatively positioned between said lumen and said retaining means, and wherein said inflating means includes an opening in the wall of said device fluidly connecting said lumen with said retaining means, said valve being attached to the exterior surface of said wall at a position longitudinally displaced along said device from said opening.

8. The improved drainage device as defined in claim 7, wherein said overriding means includes at least a portion of said walL being formed of a flexible elastomeric material, whereby said opening can be altered in shape so as to extend beyond said flap valve.

9. The improved drainage device as defined in claim 1, and further including an interspace formed in the wall defining said drainage lumen and wherein said wall is characterized by a tubular shape lacking in side arm protrusions.

10. The improved drainage device as defined in claim 9, wherein said interspace is closed at one end and fluidly connected to said retaining means at its other end.

11. The improved drainage device as defined in claim 9, wherein said interspace is fluidly connected to said retaining means at one end and to a container at its other end, said container being mounted at the proximal end of said device, and further including means for temporarily restraining said container from filling.

12. The improved drainage device as defined in claim 11, wherein said container is inflatable and is concentrically mounted with respect to said interspace, said container having an inflatable surface area which exceeds that of said retaining means, whereby in the absence of said restraining means substantially all of the fluid in said retaining means drains into said container.

13. The improved drainage device as defined in claim 1, wherein said inflating means includes, in the wall of said device defining sad drainage lumen, a passageway extending from the extreme distal end of said device to said retaining means, and a one-way valve in said extreme end permitting only controlled fluid flow in said passageway.

14. The improved drainage device as defined in claim 13, wherein said wall is formed of flexible, elastomeric material, and wherein said valve is a slit fluidly connecting said drainage lumen with said passageway, the location of said slit in the distal end and the flexibility of said walls causing said slit to be closed except when longitudinal pressure is applied to said distal end from inside said drainage lumen.

15. The improved drainage device as defined in claim 14, wherein said drainage lumen is sufficiently large to accommodate a stylet and wherein said slit is shaped so as to open when the stylet is pushed against said distal end.

16. The improved drainage device as defined in claim 1, wherein said drainage lumen is the only lumen within the walls of said device, whereby the diameter of said lumen can be maximized to the fullest extent permitted by the dimensions of the body duct into which said device is to be inserted.

17. The improved drainage device as defined in claim 2, wherein said blocking means comprises an invertible film movable upon application of suction to said lumen to an inverted position removed in a proximal direction from its eye blocking position.