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US 8,945,059 B2Granted
Medical apparatus and method of making the same
AssigneeW. L. Gore & Associates, Inc.
InventorJohn L. Loewen
Life of this patent
Estimating the term…
Abstract
A hemostatic valve apparatus used in medical procedures that provides rapid activation of a sealing mechanism resulting in lower blood loss during use of the sealing device. The valve apparatus incorporates an actuator and two mechanisms that counter-rotate opposite ends of a sealing tube.
Claims19
A vascular introducer sheath assembly for endoluminal delivery of medical treatment, said vascular introducer sheath assembly comprising:
- a catheter and a valve coupled to the catheter for controlling fluid flow through the catheter, each of the catheter and the valve being configured to accommodate delivery of the medical device therethrough, the valve having:
- a valve housing having a proximal opening and an opposite distal opening, the distal opening being in fluid communication with the catheter,
- a flexible tube having a proximal end and an opposite distal end, the tube having a longitudinal axis extending along the proximal and distal ends of the tube, the tube having a lumen extending along the longitudinal axis between the proximal and distal ends of the tube, the proximal and distal ends of the tube being in fluid communication with the proximal and distal openings of the housing, respectively, such that in an open configuration the tube allows fluid to pass between the proximal and distal openings of the housing via the lumen,
- a first gear having an axis of rotation aligned to the tube longitudinal axis and fixedly secured to the distal end of the tube,
- a second gear having an axis of rotation aligned to the tube longitudinal axis and fixedly secured to the proximal end of the tube, and
- an actuator having a third gear rotatably coupled to the housing for rotation about a third gear axis, the third gear being directly engaged with each of the first and second gears so as to cause a collapsing of the lumen by rotation of the proximal and distal ends of the tube in opposite directions in response to selective rotation of the third gear about the third gear axis.
3 more elements
A medical device kit, comprising:
- a medical device;
- a vascular introducer sheath assembly for endoluminal delivery of medical treatment, said vascular introducer sheath assembly comprising:
- a catheter and a valve coupled to the catheter for controlling fluid flow through the catheter, each of the catheter and the valve being configured to accommodate delivery of the medical device therethrough, the valve having:
- a valve housing having a proximal opening and an opposite distal opening, the distal opening being in fluid communication with the catheter,
- a flexible tube having a proximal end and an opposite distal end, the tube having a longitudinal axis extending along the proximal and distal ends of the tube, the tube having a lumen extending along the longitudinal axis between the proximal and distal ends of the tube, the proximal and distal ends of the tube being in fluid communication with the proximal and distal openings of the housing, respectively, such that in an open configuration the tube allows fluid to pass between the proximal and distal openings of the housing via the lumen,
- a first gear having an axis of rotation aligned to the tube longitudinal axis and fixedly secured to the distal end of the tube,
- a second gear having an axis of rotation aligned to the tube longitudinal axis and fixedly secured to the proximal end of the tube, and
- an actuator having a third gear rotatably coupled to the housing for rotation about a third gear axis, the third gear being directly engaged with each of the first and second gears so as to cause a collapsing of the lumen by rotation of the proximal and distal ends of the tube in opposite directions in response to selective rotation of the third gear about the third gear axis.
5 more elements
Dependencies are inferred from the claim text.