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US 6,632,200 B2Granted
Hemostasis valve
AssigneeSt. Jude Medical, Daig Division, Inc.
InventorsXiaoping Guo, Richard Stehr, Daniel J. Potter
Life of this patent
Estimating the term…
Abstract
A hemostasis cannula unit including a valve housing, a cap, and a hemostasis valve, wherein the hemostasis valve includes a proximal valve gasket and a distal valve gasket compressed against the valve gasket by the valve housing, wherein the proximal valve gasket is the same shape as the distal valve gasket.
Claims24
A hemostasis valve comprising
- a proximal valve gasket comprising a generally flattened disk containing a slit and a positioning slot, and
- a distal valve gasket comprising a generally flattened disk containing a slit and a positioning protrusion, wherein said positioning protrusion extends axially away from a face of the generally flattened disk toward a face of the proximal valve, gasket, and wherein the positioning protrusion of the distal valve gasket extends within the positioning slot of the proximal valve gasket and wherein when the positioning protrusion is placed within the positioning slot, axially rotation of the proximal valve gasket in relation to the distal valve gasket is substantially prevented.
A hemostasis cannula unit comprising
- a longitudinally extended valve housing having a first opening and a central longitudinal chamber communicating with a second opening;
- a cap secured to the valve housing enclosing the first opening of the valve housing and providing an opening to permit insertion of a medical device into the first opening of the housing through the central chamber and out the second opening;
- and
- a hemostasis valve contained within the valve housing comprising a proximal valve gasket comprising a generally flattened disk containing a slit and a positioning slot and a distal valve gasket comprising a generally flattened disk containing a slit and a positioning protrusion, wherein said positioning protrusion extends axially away from a face of the generally flattened disk toward a face of the proximal valve gasket, and wherein the positioning protrusion of the distal valve gasket interacts with the positioning slot of the proximal valve gasket and wherein when the positioning protrusion is placed within the positioning slot, axial rotation of the proximal valve gasket in relation to the distal valve gasket is substantially prevented.
1 more element
A hemostasis valve comprising
- a proximal valve gasket comprising a generally flattened disk containing an entry and exit face, a slit extending through that disk, a guiding hole and a positioning slot, and
- a distal valve gasket comprising a generally flattened disk having an entry face and an exit face, a slit extending through that disk, a guiding hole and a positioning protrusion, wherein said positioning protrusion extends axially away from said entry face of the generally flattened disk of the distal valve gasket toward the exit face of the proximal valve gasket, and wherein the longitudinal thickness of the area of the proximal valve gasket containing the slit is less than about 40 percent of the overall thickness of the proximal valve gasket between its entry and exit faces.
A hemostasis valve comprising
- a proximal valve gasket comprising a generally flattened disk containing a slit, a positioning slot and a raised circular ring on a proximal surface of the generally flattened disk, and
- a distal valve gasket comprising a generally flattened disk containing a slit and a positioning protrusion, wherein said positioning protrusion extends axially away from a face of the generally flattened disk toward a face of the proximal valve gasket, and wherein the positioning protrusion interacts with the positioning slot of the proximal valve gasket and wherein when the positioning protrusion is placed within the positioning slot, axial rotation of the proximal valve gasket in relation to the distal valve gasket is substantially prevented.
A hemostasis valve comprising
- a proximal valve gasket comprising a generally flattened disk containing a slit and a positioning slot, and
- a distal valve gasket comprising a generally flattened disk containing a slit and a positioning protrusion, wherein the positioning protrusion of the distal valve gasket interacts with the positioning slot of the proximal valve gasket and wherein when the positioning protrusion is placed within the positioning slot, axially rotation of the proximal valve gasket in relation to the distal valve gasket is restricted, and
- wherein the proximal valve gasket further comprises a second positioning slot, wherein the distal valve gasket further comprises a second positioning protrusion and wherein the inner diameter of the positioning protrusions is less than the diameter of the positioning slots.
Dependencies are inferred from the claim text.