David John Fillmore

US Patent:

6481462, Nov 19, 2002

Filed:

Mar 2, 2001

Appl. No.:

09/798444

Inventors:

David J. Fillmore - Tulsa OK
Matthew S. Longson - Holliday UT

Assignee:

NeoSci Medical, Inc. - Draper UT

International Classification:

F16K 1114

US Classification:

137607, 251 7

Abstract:

A valve apparatus is provided that includes a housing having proximal and distal ends and defining a passageway therethrough. An access port of the housing defines a bore configured for selective communication with the passageway. The valve apparatus includes a hollow insert which is disposed in the distal end of the passageway and includes a portion that is disposed beneath the bore defined by the access port. The housing additionally includes retention tabs on the distal end that engage corresponding openings in a fitting that is attached to the housing and includes a nipple slidingly received within the insert. A seat on the nipple contacts a flange of the insert to form a substantially leak proof connection. A substantially identical fitting engages corresponding retention tabs on the access port and is configured to slidingly receive a plunger, disposed in the bore, within a passage defined by the nipple. A sealing ring disposed in the bore around the plunger is compressed by the nipple and acts to prevent leakage past the plunger.

US Patent:

62409603, Jun 5, 2001

Filed:

Feb 25, 1999

Appl. No.:

9/257612

Inventors:

David J. Fillmore - Tulsa OK

International Classification:

F16K 1107
F16K 1114

US Classification:

137607

Abstract:

A valve apparatus is provided that comprises a housing with a passageway formed therethrough and a seal assembly. The housing has an access port with a bore formed therein that is configured to be in fluid communication with the passageway. The seal assembly is configured to automatically seal and unseal the passageway in the housing in response to a medical device being attached to the access port. The seal assembly has an open position where the passageway of the housing is capable of having fluid flow therethrough and a closed position in which the fluid flow through the passageway is interrupted. The seal assembly is configured to automatically move between the open position and the closed position. The seal assembly is biased into the normally open position. The seal assembly also has a hole formed therethrough which communicates with the bore in the access port and provides an opening to the passageway of the housing when the seal assembly is in the closed position.