Back to results
US 5,843,046 AGranted
Catheter apparatus
AssigneePaul J. Motisi
InventorsPaul J. Motisi, Dale Tokarz, Bruce Flesher
Life of this patent
Estimating the term…
Abstract
A catheter apparatus having a housing with a throughbore. A seal is mounted within the throughbore. The seal has a peripheral sealing surface that contacts an external surface of a sleeve when the sleeve is mounted within the throughbore. A one-way valve or check valve is mounted within the throughbore, preferably between the peripheral sealing surface and the sleeve. When the sleeve is withdrawn from the throughbore, the one-way valve prevents fluid, such as a blood sample, from flowing outside of the housing.
Claims14
A catheter apparatus comprising:
- a housing having a throughbore, a sheath, a portion of said sheath mounted within said throughbore;
- a seal mounted within said throughbore, said seal having a peripheral sealing surface, a one-way valve mounted within said throughbore;
- and
- a sleeve mounted within said throughbore, said sleeve extending through said peripheral sealing surface with an external surface of said sleeve contacting said peripheral sealing surface, said sleeve having a chamber and an open end portion in communication with said chamber, and a plunger closing said open end portion of said sleeve and slidably mounted within said chamber.
1 more element
Dependencies are inferred from the claim text.