Apparatus and method for suprapubic catheterization

• US 3,924,633 A
• Filed: 01/31/1974
• Issued: 12/09/1975
• Est. Priority Date: 01/31/1974
• Status: Expired due to Term

• Current Assignee: Thomas A. Osborne, William A. Cook
• Original Assignee: Thomas A. Osborne, William A. Cook
• Inventors: Cook, William A., Osborne, Thomas A.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/438,180
• Time in Patent Office: 677 Days
• Field of Search: 128/348,349R,35R,4-8,DIG.9,347
• US Class Current: 604/104
• CPC Class Codes: A61M 2025/0191 Suprapubic catheters
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence

Abstract

Apparatus and method for suprapubic catheterization of a bladder when the catheter must remain in situ for a prolonged period. The catheter includes a flexible tension member secured near its distal end and passing through an opening in the catheter to its proximal end, whereby, when the member is drawn tight, a selfretaining loop is formed at the distal end portion of the catheter, and means are provided for facilitating the drawing tight of the flexible tension member. A body patch and other items are supplied to assist in the catheterization procedure.

Claims

1. In a hollow flexible catheter having a proximal end and a distal end and having an opening near its distal end and having a flexible tension member secured near its distal end and passing through the opening and along within the catheter toward the proximal end, whereby when the member is drawn tight a selfretaining loop will be formed at the distal end portion of the catheter, the improvement which comprises a short tube, less flexible than the catheter, mounted within the proximal end portion of the catheter, the flexible tension member extending along within the catheter through the tube, exiting from the proximal end of the tube, passing in slideable engagement between the inner wall of the catheter and the outer wall of the tube, the wall of the catheter including an opening near the proximal end of the catheter, the flexible tension member extending from between the inner wall of the catheter and the outer wall of the tube through the opening in the catheter near the proximal end of the catheter.

2. The improvement of claim 1 in which there is a knot in the free end of the flexible tension member along the portion which extends beyond the opening near the proximal end of the catheter.

3. The improvement of claim 2 in which the flexible tension member is a stainless steel wire coated with a synthetic fluorine-containing resin.

4. The improvement of claim 3 which further comprises:

a shorT tube mounted within the distal end portion of the catheter; and

means for bonding the outside of the short tube with the inside of the catheter with the distal end of the flexible tension member looped around the short tube within the catheter.

5. The improvement of claim 4 in which the self-retaining loop portion of the catheter includes a plurality of sideports.

6. The improvement of claim 5 in which there is provided a second opening between the first opening and the point of attachment of the flexible tension member at the catheter distal end, the flexible tension member being positioned so that it passes from within the catheter through the second opening along the outer wall of the catheter and returns within the catheter through the first opening.