| 简介 |
A gastrostomy feeding port (100) is dis- closed which includes a housing (20) and a re- silient valve member (10). Housing (20) de- fines an inner passageway (29) which provides fluid communication into a long term indwelling catheter and includes a rigid compression collar portion (21) which defines a valve member re- ceiving cavity (22) within the inner passageway. Valve member (10) has a diaphragm portion (11) which has an "S" shaped slit (16) therethrough, and an outer peripheral edge which generally con- forms in shape to the valve member receiving cavity but is larger than the cavity when uncom- pressed, and an outer wall portion (12) which ex- tends away from the outer peripheral edge of di- aphragm portion (11). Valve member (10) com- pressively fits within receiving cavity (22) by ad- vancing outer wall portion (12) into cavity (22) to thereby cause the outer peripheral edge to be compressed to fit within cavity (22), with com- pression collar (21) pressing inwardly against the peripheral edge of a diagphragm portion (11) to bias slit (16) toward a normally closed position. |
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