Patent ID: 11890220
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An external male catheter, comprising:
an inner drainage sheath portion comprising a structural drainage cap configured to conform to the shape of and receive the head of a penis and a flexible rolled drainage sheath connected to the bottom of said structural drainage cap, configured to be unrolled over a penis like a condom, and a drainage conduit extending upwardly and outwardly from said st drainage cap in flow communication with said inner drainage sheath below, such said drainage conduit can be connected alternatively to a suction source or alternatively to a drainage container;
an outer suction sheath portion comprising a structural suction cap configured to conform to the shape of and be positioned over the head of a penis and an outer flexible rolled suction sheath connected to the bottom of said structural cap and configured to be unrolled over and in contact with said inner drainage sheath, said unrolled outer sheath extending downwardly past the bottom of said unrolled inner drainage sheath;
said outer structural suction cap being positioned above, spaced from and connected to said inner structural drainage cap with said drainage conduit passing through said suction cap in a sealed junction such that said drainage conduit and said suction cap function independently of one another; said structural suction cap;, including a suction conduit-extending upwardly and outwardly from said structural suction cap, spaced from said drainage conduit and in flow communication with said outer sheath below, whereby said suction conduit can be connected to a source of suction to suck said outer sheath tight against said inner sheath when a patient is urinating, thereby preventing leakage from said inner sheath during urination;
said drainage conduit including a one way check valve such that when attachment of said external male catheter to the patient's penis is completed, the source of suction used in the attachment can be disconnected without releasing the suction which is holding said catheter in place;
said suction conduit including a one way check valve such that said outer sheath will remain held tightly against said inner drainage sheath even if the source of suction is removed.