Conformable urethral plug

• US 5,090,424 A
• Filed: 12/31/1990
• Issued: 02/25/1992
• Est. Priority Date: 12/31/1990
• Status: Expired due to Fees

• Current Assignee: UroMed Corporation
• Original Assignee: UroMed Corporation
• Inventors: Nicholson, James E., Simon, John G.
• Primary Examiner(s): Hafer, Robert A.
• Assistant Examiner(s): BROWN, MICHAEL A
• Application Number:
  US07/636,285
• Time in Patent Office: 421 Days
• Field of Search: 600/29-31, 128/885, 128/834, 128/DIG. 25, 623/14
• US Class Current: 128/885
• CPC Class Codes: A61F 2/0013 inflatable
• CPC Class Codes: Y10S 128/25 Artificial sphincters and devices for controlling urinary incontinence

Abstract

The present invention is a device and method of using a device by patients who suffer from urinary incontinence. This device is a flexible urethral plug which has two components: a molded soft inflatable plastic catheter and a transportable fluid. The fluid can be moved from an external bellows, through a check valve to inflate and distend the device within the urethra, the bladder neck or the bladder causing the device to block the flow of urine through the urethra and assist the natural function of the sphincter in closing the urethra.

Claims

1. A removable device for blocking unwanted flow of urine comprising:

(a) an expandable housing forming a plug portion of the device which conforms to the shape of the urethra and defines an inner core which can accept a fluid;

(b) means for the wearer to insert the device to achieve continence including means for introducing fluid into the inner core to cause the configuration of the outer housing to distend sufficiently to reduce the flow of urine from a bladder when the device is inserted into a urethra by the wearer; and

(c) means for the wearer to remove the device to void including means for removing fluid in the core of the plug portion of the device so that the plug can be removed from the urethra by the wearer.

2. The device as set forth in claim 1 wherein the means for introducing fluid into the inner core includes a check valve in fluid communication with the inner core which permits flow of fluid through the check valve into the inner core.

3. The device as set forth in claim 2 wherein the means for introducing fluid into the inner core includes a bellows filled with fluid in fluid communication through the check valve with the inner core.

4. A method for preventing an unwanted discharge of urine comprising the following steps:

(a) providing an expandable plug which can be inserted into the urethra;

(b) inserting the expandable plug into the urethra;

(c) expanding the plug in the urethra to restrict the flow of urine from the bladder through the urethra; and

(d) deflating and removing the plug from the urethra when discharge of urine is desired.

5. A method for preventing an unwanted discharge of urine without first determining the location of the urinary sphincter comprising:

(a) selecting an expandable plug which has been determined to conform to the length of the urethra;

(b) inserting the expandable plug into the urethra;

(c) expanding the plug in the urethra to restrict the flow of urine from the bladder through the urethra; and

(d) deflating and removing the plug from the urethra when discharge of urine is desired.

6. A removable device for blocking unwanted flow of urine comprising:

(a) an expandable housing forming a plug portion of the device which conforms to the shape of the urethra and defines an inner core which can accept a fluid;

(b) means for the wearer to insert the device to achieve continence including means for introducing fluid into the inner core to cause the configuration of the outer housing to distend sufficiently to reduce the flow of urine from a bladder when the device is inserted into a urethra by the wearer wherein the means for introducing fluid into the inner core includes a check valve in fluid communication with the inner core which permits flow of fluid through the check valve into the inner core, and a bellows filled with fluid in fluid communication through the check valve with the inner core; and

(c) means for the wearer to remove the device to void including means for removing fluid in the core of the plug portion of the device so that the plug can be removed from the urethra by the wearer;

(d) a meatal plate which is used to anchor the device at the meatus urinarius, and is attached to the bellows with the check valve positioned within the meatal plate.

7. The device as set forth in claim 6 wherein the means for removing fluid in the inner core includes two leaves which comprise the check valve which separate when the check valve is misaligned so the fluid returns through the check valve into the bellows.

8. The device as set forth in claim 6 wherein the means for removing fluid in the inner core further includes a distended portion which tends to return to its original undistended shape.