Device and method for positioning a closure device
First Claim
Patent Images
1. A device for positioning a vascular wound closure device comprising:
- a sheath having a distal end and a proximal end, a sealing device being insertable through the sheath;
a first detection orifice in the sheath near the distal end;
a second detection orifice in the sheath near the distal end;
a first locator orifice in the sheath near the proximal end, anda second locator orifice in the sheath near the proximal end,wherein the first detection orifice is in fluid communication with the first locator orifice such that when the first detection orifice is disposed within the blood vessel and exposed to blood flow, such blood flow is indicated at the first locator orifice; and
wherein the second detection orifice is in fluid communication with the second locator orifice such that when the second detection orifice is disposed within the blood vessel and exposed to blood flow, such blood flow is indicated at the second locator orifice.
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Abstract
A vascular closure device including a sheath with one or more orifices therein to detect blood flow, indicating that the sheath has entered an artery and the relative position of the sheath within the artery. Thus, the sheath can be moved and positioned relative to the artery without having to completely extract the sheath from the artery after initial penetration.
94 Citations
19 Claims
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1. A device for positioning a vascular wound closure device comprising:
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a sheath having a distal end and a proximal end, a sealing device being insertable through the sheath; a first detection orifice in the sheath near the distal end; a second detection orifice in the sheath near the distal end; a first locator orifice in the sheath near the proximal end, and a second locator orifice in the sheath near the proximal end, wherein the first detection orifice is in fluid communication with the first locator orifice such that when the first detection orifice is disposed within the blood vessel and exposed to blood flow, such blood flow is indicated at the first locator orifice; and wherein the second detection orifice is in fluid communication with the second locator orifice such that when the second detection orifice is disposed within the blood vessel and exposed to blood flow, such blood flow is indicated at the second locator orifice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of positioning a vascular closure device comprising the steps of:
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inserting a distal end of a sheath through an existing tract to a blood vessel wall, a sealing device being insertable through the sheath; advancing the sheath through the blood vessel wall until blood flows into a first detection orifice of the sheath and blood flow is detected at a first locator orifice in the sheath; retracting the sheath until the blood flow ceases without completely withdrawing the sheath from the blood vessel and determining that the orifice is positioned adjacent an edge of the wall while the tip of the sheath is positioned within the blood vessel; wherein advancing the sheath forward further comprises stopping the forward advancement if blood flow is detected at a second locator orifice disposed in the sheath, wherein the second locator orifice is in fluid communication with a second detection orifice disposed further from the distal end of the sheath than the first orifice. - View Dependent Claims (12, 13, 14)
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15. A method of using a vascular wound closure device for a vascular closure procedure, comprising:
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inserting a distal end of a sheath into an artery until blood flows into a first detection orifice and blood flow is detected at a first locator orifice in the sheath, the blood flow indicating that the first detection orifice has entered the artery; advancing the sheath a predetermined distance into the artery; and stopping advancement when blood flows into a second detection orifice of the sheath and blood flow is detected at a second locator orifice in the sheath, the second detection orifice being located proximal of the first detection orifice; wherein the sheath provides an access point for a sealing device into the artery.
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16. A vascular wound closure device comprising:
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a sheath for penetrating an artery, the sheath having a distal end and a proximal end and providing an access point for a sealing device into the artery; a first detection orifice disposed on the sheath; a second detection orifice disposed on the sheath further from the distal end that then first detection orifice; a first indicator in fluid communication with the first detection orifice via a first fluid passageway, the first indicator disposed in the sheath proximate the proximal end, wherein the first indicator indicates when the first detection orifice is exposed to blood flow; and a second indicator in fluid communication with the second detection orifice via a second fluid passageway, the second indicator disposed in the sheath proximate the proximal end, wherein the second indicator indicates when the second detection orifice is exposed to blood flow. - View Dependent Claims (17, 18, 19)
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Specification