Low pressure seal design for a hemostasis valve
AssigneeBoston Scientific Corporation
InventorsSumit Agrawal, Biten Kishore Kathrani
Life of this patent
Estimating the term…
Abstract
A hemostasis valve assembly for use in a medical device. The hemostasis valve assembly may include a main body portion defining an internal cavity, a seal cartridge disposed within the internal cavity, and a low pressure valve assembly positioned within the internal cavity adjacent to the seal cartridge. The low pressure valve assembly may include a first valve member having a first valve body and a second valve member having second valve body. A portion of a distal side of the first valve member may abut at least a portion of a proximal side of the second valve member.
Claims19
A hemostasis valve assembly for use in a medical device, the hemostasis valve assembly comprising:
- a main body portion defining an internal cavity;
- a distal seal disposed within the internal cavity;
- and
- a proximal seal positioned proximal of the distal seal within the internal cavity, the proximal seal including:
- a first, proximal seal member having a proximal face and a distal face, an entirety of the distal face extending across an entirety of the first seal member is planar, the proximal face includes a concave central region;
- a second, distal seal member having a proximal face and a distal face, the distal face including an angled central region, wherein the angled central region is angled distally or angled proximally;
- wherein at least a portion of the first seal member directly contacts at least a portion of the second seal member.
A hemostasis valve assembly for use in a medical device, the hemostasis valve assembly comprising:
- a main body portion defining an internal cavity;
- a distal seal disposed within the internal cavity;
- and
- a proximal seal positioned proximal of the distal seal within the internal cavity, the proximal seal including:
- a first, proximal seal member having a proximal face and a distal face, an entirety of the distal face extending across an entirety of the first seal member is planar, the proximal face includes an angled central region;
- a second, distal seal member having a proximal face and a distal face, the distal face including an angled central region;
- wherein the first and second seal members each have a flanged outer perimeter and an annular groove radially inward of the flanged outer perimeter;
- wherein at least a portion of the first seal member opposite its annular groove directly contacts at least a portion of the second seal member opposite its annular groove;
- wherein the flanged outer perimeter of each of the first and second seal members has a first thickness measured in a distal to proximal direction, wherein the first thickness is greater than a thickness of each of the first and second annular grooves.
A hemostasis valve assembly for use in a medical device, the hemostasis valve assembly comprising:
- a main body portion defining an internal cavity;
- a distal seal disposed within the internal cavity;
- and
- a proximal seal positioned proximal of the distal seal within the internal cavity, the proximal seal including:
- a first, proximal seal member having a proximal face and a distal face, an entirety of the distal face extending across an entirety of the first seal member is planar, the proximal face includes a concave central region;
- a second, distal seal member having a proximal face and a distal face, an entirety of the proximal face extending across an entirety of the second seal member is planar, the distal face including an angled central region, wherein the angled central region is angled distally or angled proximally;
- wherein at least a portion of the first seal member directly contacts at least a portion of the second seal member.
Dependencies are inferred from the claim text.