METHOD AND DEVICES FOR FLOW OCCLUSION DURING DEVICE EXCHANGES
First Claim
1. A method of reducing the risk of clinical sequelae to catheter induced vascular injuries, the method comprising:
- introducing a guide wire into a vascular sheath residing in a blood vessel, the guide wire having a distal end and an inflatable balloon at least 5 cm proximal of the distal end;
proximally retracting the vascular sheath while leaving the wire in place;
observing indicia of the presence or absence of a vascular injury caused to the blood vessel by the vascular sheath or a procedural catheter previously advanced through the vascular sheath; and
if indicia of a vascular injury are observed;
proximally retracting the guide wire to position the inflatable balloon adjacent the injury; and
inflating the balloon to reduce blood flow past the injury, while leaving the guide wire in place to provide subsequent access to the injury.
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Accused Products
Abstract
A method of reducing the risk of clinical sequelae to catheter induced vascular injuries may include introducing a guide wire into a vascular sheath residing in a blood vessel, proximally retracting the vascular sheath while leaving the wire in place, and observing indicia of the presence or absence of a vascular injury caused to the blood vessel by the vascular sheath or a procedural catheter previously advanced through the vascular sheath. If indicia of a vascular injury are observed, the method may further involve proximally retracting the guide wire to position the inflatable balloon adjacent the injury and inflating the balloon to reduce blood flow past the injury, while leaving the guide wire in place to provide subsequent access to the injury.
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Citations
65 Claims
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1. A method of reducing the risk of clinical sequelae to catheter induced vascular injuries, the method comprising:
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introducing a guide wire into a vascular sheath residing in a blood vessel, the guide wire having a distal end and an inflatable balloon at least 5 cm proximal of the distal end; proximally retracting the vascular sheath while leaving the wire in place; observing indicia of the presence or absence of a vascular injury caused to the blood vessel by the vascular sheath or a procedural catheter previously advanced through the vascular sheath; and if indicia of a vascular injury are observed; proximally retracting the guide wire to position the inflatable balloon adjacent the injury; and inflating the balloon to reduce blood flow past the injury, while leaving the guide wire in place to provide subsequent access to the injury. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of treating a patient, the method comprising:
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advancing a guide wire into a vascular sheath following an intravascular procedure, the guide wire comprising a distal end and a radially expandable structure spaced at least 5 cm proximally of the distal end; proximally withdrawing the sheath; evaluating the presence of a vascular injury caused by the sheath or a device introduced through the sheath; and if a vascular injury is observed, repositioning the guide wire and expanding the radially expandable structure to stabilize the injury. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of treating a patient, the method comprising:
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introducing a guide wire into a blood vessel, the guide wire comprising a distal end and an inflatable balloon spaced at least 5 cm proximally of the balloon; introducing an index procedure catheter over the wire; and conducting an index procedure proximally of the balloon. - View Dependent Claims (18, 19)
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20. A method of reducing the risk of clinical sequelae to catheter induced vascular injuries, the method comprising:
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introducing a guide wire into a vessel, the guide wire having a distal end and a radially enlargeable structure at least 5 cm proximal of the distal end; advancing a procedure catheter along the wire; and performing a procedure with the procedure catheter, such that if the procedure catheter or an access sheath used introduce the procedure catheter produces a vascular injury, the guide wire can be advanced or retracted to position the radially enlargeable structure adjacent the injury, and the structure can be radially enlarged to control the injury while leaving the guide wire in place to provide subsequent access to the injury. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of treating a catheter induced vascular injury, the method comprising:
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advancing an inflatable balloon of a guide wire through a vascular sheath disposed in an iliofemoral artery, wherein the vascular sheath was used to perform a catheter based intravascular procedure; retracting the vascular sheath proximally; assessing the artery for injury; repositioning the guide wire within the artery; inflating the balloon to occlude the artery; removing an inflation device from the guide wire, wherein the balloon remains inflated after the inflation device is removed; advancing a vascular repair device over a proximal end of the guide wire; performing a repair procedure on the artery, using the repair device; removing the repair device over the guide wire; deflating the balloon using the inflation device; and removing the guide wire from the artery. - View Dependent Claims (35, 36, 37, 38, 39)
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40. A vascular guide wire, comprising:
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an elongate tubular body having a proximal end, a distal end and a lumen extending longitudinally through at least part of the body, the elongate body comprising; a proximal portion; a flexible distal tip that is at least about 15 cm long and is more flexible than the proximal portion; and a transition portion between the proximal and distal portions; an inflatable balloon disposed on the transition portion and in communication with the lumen; and a valve on the proximal portion of the elongate body configured to couple with an inflation device to allow for inflation and deflation of the balloon. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A vascular guide wire, comprising:
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an elongate tubular body having a proximal end, a distal end, and a lumen extending longitudinally through at least part of the body, the elongate body comprising; a proximal section having a first average stiffness; a transition section having a second average stiffness that is less than the first stiffness; and a distal tip having a length of at least about 15 cm and a third average stiffness that is less than the second stiffness; and an expandable member disposed on the transition section, wherein the expandable member is expandable via fluid advanced through the central lumen of the elongate body. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A vascular guide wire system, comprising:
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a guide wire device comprising; an elongate tubular body comprising a proximal portion, a flexible distal tip that is at least about 15 cm long and is more flexible than the proximal portion, a transition portion between the proximal and distal portions, and a lumen extending longitudinally through at least part of the body; an inflatable balloon disposed on the transition portion and in communication with the lumen; and a valve on the proximal portion of the elongate body; and an inflation device configured to couple with the elongate body to open and close the valve and allow for inflation of the inflatable balloon. - View Dependent Claims (61, 62, 63, 64, 65)
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Specification