Methods and devices for percutaneous and surgical interventions
First Claim
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1. A device for use during vascular percutaneous interventions, comprising:
- a tubular portion, having a proximal end and a distal end, and a lumen extending from the proximal end to the distal end; and
a retractable mechanism near the distal end of the tubular portion, the mechanism providing an increased cross section of the tubular portion when deployed and no increase or substantially no increase in cross section of the tubular portion when retracted;
whereby the tubular portion is introduced into a vessel using either an antegrade or a retrograde approach and whereby the tubular portion can be repositioned within the vessel from an antegrade to a retrograde approach and from a retrograde to an antegrade approach without losing vascular access.
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Abstract
Methods and devices for performing percutaneous and surgical interventions. The devices comprising a tubular portion and retractable mechanism at the distal end of the tubular portion. The retractable mechanism prevents the device from pulling out of an anatomical structure during complex interventions, for example, when switching from an antegrade to a retrograde approach within a blood vessel, enables the use of a single sheath when declotting AV hemodialysis fistulas and can provide occlusion of blood flow during interventions and means of removal of debris or clot from the blood vessel.
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Citations
71 Claims
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1. A device for use during vascular percutaneous interventions, comprising:
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a tubular portion, having a proximal end and a distal end, and a lumen extending from the proximal end to the distal end; and
a retractable mechanism near the distal end of the tubular portion, the mechanism providing an increased cross section of the tubular portion when deployed and no increase or substantially no increase in cross section of the tubular portion when retracted;
whereby the tubular portion is introduced into a vessel using either an antegrade or a retrograde approach and whereby the tubular portion can be repositioned within the vessel from an antegrade to a retrograde approach and from a retrograde to an antegrade approach without losing vascular access. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 55, 61, 62)
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31. (canceled)
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50. A method for performing a vascular percutaneous intervention comprising the steps of:
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(a) providing a device comprising;
a tubular portion, having a proximal end and a distal end, and a lumen extending from the proximal end to the distal end;
a retractable mechanism near the distal end of the tubular portion, the mechanism providing an increased cross section of the tubular portion when deployed and substantially no increase in cross section of the tubular portion when retracted;
(b) inserting the tubular portion of the device into a blood vessel distal end first with the retractable mechanism retracted;
(c) deploying the retractable mechanism to a size larger than the opening through which the tubular portion entered the blood vessel;
(d) performing the vascular percutaneous intervention;
(e) retracting the retractable mechanism; and
(f) removing the device from the blood vessel. - View Dependent Claims (51, 52, 53, 54)
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56. A method of repositioning a device within a blood vessel between a retrograde approach and an antegrade approach and vice-versa, comprising:
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(a) providing a device comprising;
a tubular portion, having a proximal end and a distal end, and a lumen extending from the proximal end to the distal end;
a retractable mechanism near the distal end of the tubular portion, the mechanism providing an increased cross section of the tubular portion when deployed and substantially no increase in cross section of the tubular portion when retracted;
(b) inserting the tubular portion of the device into a blood vessel in one direction distal end first with the mechanism retracted;
(c) deploying the mechanism to a size larger than the opening through which the tubular portion entered the blood vessel;
(d) pulling the device back out of the blood vessel, while maintaining vascular access;
(e) pushing the device back into the blood vessel in the opposite direction whereby the deployed mechanism prevents the device from losing vascular assess.
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57. A method for aspirating blood clots, emboli and other materials from a blood vessel comprising the steps of:
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(a) providing a device comprising;
a tubular portion, having a proximal end and a distal end, and a lumen extending from the proximal end to the distal end;
a retractable mechanism near the distal end of the tubular portion, the mechanism providing an increased cross section of the tubular portion when deployed and substantially no increase in cross section of the tubular portion when retracted;
(b) inserting the tubular portion of the device into the blood vessel distal end first facing towards the material to be aspirated with the retractable mechanism retracted;
(c) deploying the retractable mechanism to a size that occludes the blood vessel;
(d) removing blood clots, emboli and other materials from the blood vessel;
(e) retracting the retractable mechanism; and
(f) removing the device from the blood vessel. - View Dependent Claims (58, 59, 60)
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63. A method for performing a vascular percutaneous intervention comprising the steps of:
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(a) providing a first device comprising;
a tubular portion, having a proximal end and a distal end, and a lumen extending from the proximal end to the distal end;
a retractable mechanism near the distal end of the tubular portion, the mechanism providing an increased cross section of the tubular portion when deployed and substantially no increase in cross section of the tubular portion when retracted;
(b) inserting the tubular portion of the first device into a donor blood vessel distal end first with the retractable mechanism retracted;
(c) deploying the retractable mechanism to a size larger than the opening through which the tubular portion entered the blood vessel;
(d) connecting the first device to a recipient blood vessel; and
(e) transferring materials from the donor blood vessel, through the tubular portion of the first device, and into the recipient blood vessel. - View Dependent Claims (64, 65, 66, 67, 68, 69, 70, 71)
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Specification