Catheter apparatus
First Claim
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1. 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.
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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 When the sleeve is withdrawn from the throughbore, the one-way valve prevents fluid, such as a blood sample, from flowing outside of the housing.
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Citations
14 Claims
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1. A catheter apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification