Combined fixed volume retention cuff and relief valve
First Claim
1. A system (10, 110) for regulating volume in a retention cuff/balloon in an indwelling catheter;
- the system comprising the combination of;
a fixed-volume inflatable retention cuff (20) mountable on a patient proximal end of an indwelling catheter (14);
a relief valve (23, 123) connected to the fixed-volume inflatable retention cuff, the relief valve having a first end for selective introduction there through of inflation fluid via the relief valve and an inflation tube (22) to the fixed-volume retention cuff, a second end for connection to the inflation tube and a valve wall extending between the first end and the second end of the valve, and a port (24, 124) to permit escape of excess fluid when a preselected maximum retention cuff volume has been exceeded; and
an inflation tube (22) connecting the fixed-volume inflatable retention cuff (20) to the relief valve, the inflation tube having a first end and a second end and extending therebetween, the first end of the inflation tube being in fluid-tight connection to an interior of the fixed-volume retention cuff, and the second end of the inflation tube being in fluid-tight connection with the second end of the relief valve to thereby permit the fixed-volume inflatable retention cuff and the relief valve to be in fluid communication with each other for selective filling of the fixed-volume inflation cuff with fluid when it is desired to insert and safely retain an indwelling catheter (14) in an organ of a patient for an extended period of time.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention is a system (10, 110) for regulating volume in a retention cuff/balloon (20) in an indwelling catheter; i.e., the combination of fixed-volume inflatable retention cuff mountable on a patient proximal end of an indwelling catheter (14) and relief valve (23, 123) connected to the cuff. The relief valve has ends for selective introduction of fluid to the cuff and for connection to an inflation tube. A valve port (24, 124) permits escape of excess fluid when a maximum cuff volume has been exceeded, and inflation tube (22) connects cuff (20) to the relief valve. The inflation tube has ends in fluid-tight connection to an interior of the cuff, and the relief valve to thereby permit the cuff and valve to be in fluid communication with each other for selective filling of the cuff to insert and safely retain an indwelling catheter in a patient for an extended period.
39 Citations
14 Claims
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1. A system (10, 110) for regulating volume in a retention cuff/balloon in an indwelling catheter;
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the system comprising the combination of;
a fixed-volume inflatable retention cuff (20) mountable on a patient proximal end of an indwelling catheter (14);
a relief valve (23, 123) connected to the fixed-volume inflatable retention cuff, the relief valve having a first end for selective introduction there through of inflation fluid via the relief valve and an inflation tube (22) to the fixed-volume retention cuff, a second end for connection to the inflation tube and a valve wall extending between the first end and the second end of the valve, and a port (24, 124) to permit escape of excess fluid when a preselected maximum retention cuff volume has been exceeded; and
an inflation tube (22) connecting the fixed-volume inflatable retention cuff (20) to the relief valve, the inflation tube having a first end and a second end and extending therebetween, the first end of the inflation tube being in fluid-tight connection to an interior of the fixed-volume retention cuff, and the second end of the inflation tube being in fluid-tight connection with the second end of the relief valve to thereby permit the fixed-volume inflatable retention cuff and the relief valve to be in fluid communication with each other for selective filling of the fixed-volume inflation cuff with fluid when it is desired to insert and safely retain an indwelling catheter (14) in an organ of a patient for an extended period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A catheter system comprising:
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a catheter (14) having a lumen end adapted for insertion in a patient organ;
a balloon cuff (20) attached to said catheter adjacent said lumen end, said balloon cuff also being adapted for insertion in the patient organ;
said balloon cuff being inflatable only to a preconfigured volume;
a tube (22) having a first end in fluid communication with an interior of said balloon and a second end attached to a relief valve (23, 123); and
a relief valve (23, 123) in operative communication with said tube such that cuff inflation fluid is released externally to the organ when the space within said balloon and tube exceeds a preconfigured threshold volume. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification