Methods and apparatus for blocking flow through blood vessels
First Claim
1. A device which is implantable in a blood vessel to block the flow of blood in at least one direction through that blood vessel, said device comprising:
- a) a blood vessel engaging portion which is initially disposable in a radially collapsed configuration such that said device may be passed into the lumen of the tapered segment of said blood vessel, and subsequently expandable to an operative configuration wherein it will frictionally engage the surrounding blood vessel wall to hold the device in fixed position within said blood vessel lumen; and
, b) a lumen blocking portion which is affixed to said engaging portion, said lumen blocking portion being configured such that, when said engaging portion is in its operative configuration and in contact with the blood vessel wall, said lumen blocking portion will block the flow of blood in at least one direction through said lumen.
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Accused Products
Abstract
Methods and apparatus for occluding blood flow within a blood vessel. In a first series of embodiments, the present invention comprises a plurality of embolic devices deployable through the lumen of a conventional catheter such that when deployed, said embolic devices remain resident and occlude blood flow at a specific site within the lumen of the blood vessel. Such embolic devices comprise either mechanical embolic devices that become embedded within or compress against the lumen of the vessel or chemical vaso-occlusive agents that seal off blood flow at a given site. A second embodiment of the present invention comprises utilization of a vacuum/cauterizing device capable of sucking in the lumen of the vessel about the device to maintain the vessel in a closed condition where there is then applied a sufficient amount of energy to cause the tissue collapsed about the device to denature into a closure. In a third series of embodiments, the present invention comprises the combination of an embolization facilitator coupled with the application of an energy force to form an intraluminal closure at a specified site within a vessel.
196 Citations
88 Claims
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1. A device which is implantable in a blood vessel to block the flow of blood in at least one direction through that blood vessel, said device comprising:
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a) a blood vessel engaging portion which is initially disposable in a radially collapsed configuration such that said device may be passed into the lumen of the tapered segment of said blood vessel, and subsequently expandable to an operative configuration wherein it will frictionally engage the surrounding blood vessel wall to hold the device in fixed position within said blood vessel lumen; and
,b) a lumen blocking portion which is affixed to said engaging portion, said lumen blocking portion being configured such that, when said engaging portion is in its operative configuration and in contact with the blood vessel wall, said lumen blocking portion will block the flow of blood in at least one direction through said lumen. - 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, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77)
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78. A device for closing the lumen of a blood vessel, said device comprising:
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an elongate probe member having a distal end;
means for collapsing the blood vessel wall at a location adjacent the distal end of the probe;
a vessel wall fusing means for fusing the blood vessel wall;
said probe being insertable into a blood vessel at a location where it is desired to seal the lumen of the blood vessel, said means for collapsing the blood vessel wall being then useable to collapse a portion of the blood vessel adjacent the distal end of the probe, said vessel wall fusing means being then useable to fuse the blood vessel wall in the collapsed area, thereby closing the blood vessel lumen. - View Dependent Claims (79, 80, 81, 82, 83, 84, 85, 86)
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87. A device for closing the lumen of a blood vessel, said device comprising:
an elongate transluminally insertable probe having a detachable core member mounted on the distal end thereof and an energy-transmitting pathway extending longitudinally through the probe, said probe being insertable into the lumen of a blood vessel such that the core member is located at the site at which it is desired to close the blood vessel lumen, energy being subsequently passable through the probe member to cause the blood vessel wall to constrict about and engage the core member, thereby closing the lumen of the blood vessel, said core member being thereafter detachable from said probe member such that the probe member may be extracted and removed from the body leaving the core member implanted within the constricted region of the blood vessel.
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88. A device for sealing the lumen of a blood vessel, said device comprising:
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an elongate catheter having a hollow lumen extending longitudinally therethrough and terminating in a distal opening;
an energy-delivering member which is advanceable out of the distal opening of the catheter;
said catheter being advanceable through a blood vessel to a location at which the distal end of the catheter is adjacent the site at which the blood vessel is to be closed, a quantity of non-proteinaceous, energy-transmitting fluid being infusible through the lumen of the catheter so as to fill the lumen of the blood vessel adjacent the distal end of the catheter, said energy transmitting member being advanceable out of the opening of the catheter and into the energy-transmitting fluid such that energy delivered from the energy delivering member will be transmitted by the energy transmitting fluid to the surrounding wall of the blood vessel, thereby causing the blood vessel to constrict and close at that location.
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Specification