| 摘要 |
A gastrostomy feeding port (100) is disclosed which includes a housing (20) and a resilient valve member (10). Housing (20) defines 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 receiving 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 conforms in shape to the valve member receiving cavity but is larger than the cavity when uncompressed, and an outer wall portion (12) which extends away from the outer peripheral edge of diaphragm portion (11). Valve member (10) compressively fits within receiving cavity (22) by advancing outer wall portion (12) into cavity (22) to thereby cause the outer peripheral edge to be compressed to fit within cavity (22), with compression collar (21) pressing inwardly against the peripheral edge of diagphragm portion (11) to bias slit (16) toward a normally closed position. |
