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US 12,447,324 B2Granted
Hemostasis valve seal
AssigneeCygnusmed, Inc.
InventorsFiras Al-Ali, Jeff Christian
Life of this patent
Estimating the term…
Abstract
A seal for a hemostasis valve is provided as well as a novel seal stack for use in hemostasis valves. The seal stack includes a plurality of conical or frustoconical members including an anti-prolapse member, and a sealing member. The seal stack may optionally include a diaphragm and/or a second sealing member. The valve body may include a pressure sensing member which may be located in a sidearm.
Claims13
A seal for a hemostasis valve comprising,
- an anti-prolapse member comprising a rigid frustoconical structure having an annular base flange and a central through-hole;
- a first sealing member comprising a flexible conical structure having an annular base flange, a blunted apex axially aligned with the through-hole of the anti-prolapse member, a seam oriented through the blunted apex of the first sealing member, a first registering structure at a first position on an upstream face of the base flange of the first sealing member, and a second registering structure complementary to the first registering structure of the first sealing member and positioned on a downstream face of the base flange of the first sealing member at an angular offset of φ relative to the first registering structure of the first sealing member, wherein φ is an angle between 10° and 90°, wherein an upstream face of the first sealing member receives a downstream face of the anti-prolapse member;
- and
- a second sealing member comprising a flexible conical structure having an annular base flange, a blunted apex axially aligned with the through-hole of the anti-prolapse member, a seam oriented through the blunted apex of the second sealing member, a first registering structure at a first position on an upstream face of the base flange of the second sealing member, and a second registering structure complementary to the first registering structure of the second sealing member and positioned on a downstream face the base flange of the second sealing member at an angular offset of φ relative to the first registering structure of the second sealing member, wherein φ is an angle between 10° and 90°, wherein an upstream face of the second sealing member receives a downstream face of the first sealing member, and wherein the second sealing member is oriented at an angular offset of φ relative to the first sealing member.
1 more element
A seal for a hemostasis valve comprising:
- an anti-prolapse member comprising a rigid frustoconical structure having a conical wall, an annular base flange at a base of the conical wall of the anti-prolapse member, and a central through-hole in the conical wall of the anti-prolapse member;
- a diaphragm, that is flexible and frustoconical, having a conical wall, an annular base flange at a base of the conical wall of the diaphragm, and a central through-hole in the conical wall of the diaphragm, wherein a downstream face of the conical wall of the diaphragm is received by an upstream face of the conical wall of the anti-prolapse member;
- and
- a sealing member comprising a flexible conical structure having a conical wall, an annular base flange at a base of the conical wall of the sealing member, a blunted apex axially aligned with the through-hole of the anti-prolapse member and the through-hole of the diaphragm, a seam oriented through the blunted apex, wherein an upstream face of the conical wall of the sealing member receives a downstream face of the conical wall of the anti-prolapse member.
1 more element
A hemostasis valve, comprising:
- a valve body comprising an inner luminal wall defining a lumen extending from an upstream opening to a downstream opening;
- a seal stack comprising:
- an anti-prolapse member comprising a rigid frustoconical structure having a conical wall, an annular base flange at a base of the conical wall of the anti-prolapse member, and a central through-hole in the conical wall of the anti-prolapse member;
- a sealing member comprising a flexible conical structure having a conical wall, an annular base flange at a base of the conical wall of the sealing member, a blunted apex axially aligned with the through-hole of the anti-prolapse member, a seam oriented through the blunted apex, wherein an upstream face of the conical wall of the sealing member receives a downstream face of the conical wall of the anti-prolapse member;
- a mounting groove in the inner luminal wall sized to simultaneously receive the base flanges of the seal stack in a mounted relation;
- and
- a frustoconical valve seat supportively receiving a downstream face of the seal stack, the frustoconical valve seat defining an orifice in fluid communication with the lumen of the valve body, wherein the blunted apex of the seal stack protrudes through the orifice.
4 more elements
Dependencies are inferred from the claim text.