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US 2014/0277340 A1Published application
Hemostasis Valve and Delivery Systems
AssigneeBolton Medical, Inc.
InventorsBryan White, Timothy Lostetter, Scott Lyle Rush, John C. Canning
Life of this patent
Estimating the term…
Abstract
A hemostasis valve includes a longitudinal valve housing, a gasket, a grip assembly and an interference element. A x-valve includes a valve housing, at least one sealing component and a support layer. Stent graft delivery systems include a handle, an internal lead screw assembly, a lead screw nut, a support member fixed to the handle body, a sheath and a hemostasis valve.
Claims63
A hemostasis valve, comprising:
- a) a longitudinal valve housing defining a conduit and having a proximal end and a distal end;
- b) a gasket within the housing, the gasket defining an interior conduit and having,
- i) a distal end portion, the distal end being fixed relative to the longitudinal valve housing,
- ii) a proximal end portion that is moveable relative to the longitudinal housing, and
- iii) a collapsible intermediate portion between the distal end and the proximal end;
- c) a grip assembly at the proximal end of the longitudinal valve housing and linked to the proximal end of the gasket, the grip assembly being rotatable relative to the longitudinal valve housing, and including,
- i) a grip portion at the first end of the longitudinal valve housing,
- ii) a spindle portion fixed to the grip and extending from the grip portion into the conduit of the longitudinal valve housing, the spindle portion fixed to the gasket at the proximal end of the gasket,
- iii) a ratchet extending about the spindle portion and fixed to the spindle portion, the ratchet defining teeth at an end of the ratchet extending about the spindle, the ratchet being biased in a direction relative to the longitudinal valve housing and along a major longitudinal axis of the longitudinal valve housing;
- and
- d) an interference element within the longitudinal valve housing that interferes with the teeth of the ratchet and against which the teeth of the ratchet are biased, whereby rotation of the grip portion relative to the longitudinal valve housing causes rotation of the proximal end of the gasket relative to the distal end of the gasket, thereby changing the internal diameter of the internal conduit, and whereby rotation of the grip relative to the housing causes the teeth of the ratchet to disengage and re-engage the interference element with the ratchet, re-engagement of the ratchet with the interference element locking the diameter of the internal conduit of the gasket in place upon termination of rotation of the grip relative to the longitudinal valve housing.
8 more elements
An x-valve, comprising:
- a) a valve housing;
- b) at least one sealing component within the valve housing, the sealing component defining at least one slot;
- and
- c) a support layer at least partially embedded within the sealing component.
1 more element
A stent graft delivery system, comprising:
- a) a handle that includes
- i. a distal grip, and
- ii. a handle body extending from one end of the distal grip, the handle defining a conduit and a track along a portion of the length of the distal grip and the handle body;
- b) an internal lead screw assembly within the track, the internal lead screw assembly being movable along a major axis of the conduit, and including a threaded portion that extends through the track;
- c) a lead screw nut that extends about the handle body and threadably engaged with the threaded portion of the internal lead screw assembly, whereby rotation of the lead screw nut while abutting the distal grip causes movement of the internal lead screw assembly relative to the handle and wherein the lead screw nut simultaneously is slidable along the handle body while engaged with the internal lead screw assembly, thereby providing at least two mechanisms for causing movement of the internal lead screw relative to the handle;
- d) a support member fixed to the handle body,
- e) a sheath extending about a portion of the support member and fixed to the internal lead screw assembly, whereby relative movement of the handle body and the lead screw assembly causes relative movement of the support member and the sheath, wherein the support member includes a hypo-tube and a support tube within the hypo-tube, wherein the hypo-tube is fixed to the handle body, and wherein the internal lead screw assembly defines an opening essentially coaxial with the handle, wherein the support member extends through the internal lead screw;
- and
- f) a hemostasis valve about the support member and between the sheath and the internal lead screw assembly, wherein the hemostasis valve includes a gasket having a distal end and a proximal end along a major longitudinal axis of the delivery system and defines an internal conduit between the distal end of the gasket and the proximal end of the gasket through which the support member extends, wherein actuation of the hemostasis valve narrows the internal conduit about the support member, thereby closing the hemostasis valve.
6 more elements
A stent graft delivery system, comprising:
- a) a handle that includes
- i. a distal grip, and
- ii. a handle body extending from one end of the distal grip, the handle defining a conduit and a track along a portion of the length of the distal grip and the handle body;
- b) an internal lead screw assembly within the track, the internal lead screw assembly being movable along a major axis of the conduit, and including a threaded portion that extends through the track;
- c) a lead screw nut that extends about the handle body and threadably engaged with the threaded portion of the internal lead screw assembly, whereby rotation of the lead screw nut while abutting the distal grip causes movement of the internal lead screw assembly relative to the handle and wherein the lead screw nut simultaneously is slidable along the handle body while engaged with the internal lead screw assembly, thereby providing at least two mechanisms for causing movement of the internal lead screw relative to the handle;
- d) a support member fixed to the handle body,
- e) a sheath extending about a portion of the support member and fixed to the internal lead screw assembly, whereby relative movement of the handle body and the lead screw assembly causes relative movement of the support member and the sheath, wherein the support member includes a hypo-tube and a support tube within the hypo-tube, wherein the hypo-tube is fixed to the handle body, and wherein the internal lead screw assembly defines an opening essentially coaxial with the handle, wherein the support member extends through the internal lead screw;
- and
- f) a hemostasis valve about the supporting member and between the sheath and the internal lead screw assembly, wherein the hemostasis valve includes a x-valve along a longitudinal axis of the delivery system, wherein the x-valve includes at least one pair of sealing layers defining intersecting slots and a support layer partitioning the sealing layers.
6 more elements
Dependencies are inferred from the claim text.