US5795331A — Balloon catheter for occluding aneurysms of branc…

Claim 1

Independent Claim 127 words

A method of forming an occluding cast through a vessel opening in the side wall of a main blood vessel for occluding a peripheral vessel or aneurysm outside of the opening without occluding the main vessel, comprising the steps of: sealing the main vessel lumen and side walls from the vessel opening into the aneurysm or peripheral vessel to thereby shield the main vessel wall adjacent to the vessel openings; delivering an occluding agent through the vessel opening into the aneurysm chamber or peripheral vessel; and maintaining the seal until occlusion is effected or the occluding agent is stabilized, whereby an occluding cast is formed by or about the occluding agent within the aneurysm or peripheral vessel and seals the vessel opening without occluding the main vessel.

Claim 2

Independent Claim 127 words

A method of forming an occluding cast through a vessel opening in the side wall of a main blood vessel for occluding a peripheral vessel or aneurysm outside of the opening without occluding the main vessel, comprising the steps of: sealing the main vessel lumen and side walls from the vessel opening into the aneurysm or peripheral vessel to thereby shield the main vessel wall adjacent to the vessel openings; delivering an occluding agent through the vessel opening into the aneurysm chamber or peripheral vessel; and maintaining the seal until occlusion is effected or the occluding agent is stabilized, whereby an occluding cast is formed by or about the occluding agent within the aneurysm or peripheral vessel and seals the vessel opening without occluding the main vessel.

Claim 3

Dependent Claim 39 words

The method of claim 1 further comprising the step of: perfusing the vessel lumen to allow blood flow through it in perfusion channel sealed from the vessel opening during delivery of the occluding agent and maintenance of the seal.

Claim 4

Dependent Claim 29 words

The method of claim 1 further comprising the step of: venting through the vessel opening leading to the aneurysm chamber or peripheral vessel during delivery of the occluding agent.

Claim 5

Dependent Claim 27 words

The method of claim 1 further comprising the step of: aspirating the contents of the aneurysm chamber or peripheral vessel prior to delivery of the occluding agent.

Claim 6

Dependent Claim 111 words

The method of claim 1 wherein said sealing and delivering steps further comprise the steps of: introducing a balloon catheter having an inflatable balloon into a position in the main vessel adjacent to the vessel opening; introducing means for delivering an occluding agent through a delivery exit port into a position in the main vessel adjacent to the vessel opening to deliver the occluding agent through the vessel opening; inflating the balloon to fill the blood vessel and to seal the delivery exit port and the vessel opening from the blood vessel lumen; and delivering the occluding agent through the delivery lumen and delivery exit port and through the vessel opening.

Claim 7

Dependent Claim 47 words

The method of claim 5 further comprising the step of: rotating the balloon catheter to rotate the inflated balloon across the vessel opening after delivering the occluding agent, whereby the vessel opening is sealed from the main vessel lumen as the occluding agent forms the occluding cast.

Claim 8

Dependent Claim 71 words

The method of claim 1 wherein the delivering step further comprises: delivering an occluding agent having a liquid form through the vessel opening, the occluding agent being reactive to irradiating light for solidifying as a solid occluding cast; and further comprising the step of: irradiating the occluding agent delivered through the vessel opening with irradiating light directed through the vessel opening sufficiently to effect solidification of the delivered liquid occluding agent.

Claim 9

Dependent Claim 65 words

The method of claim 1 wherein the delivering step further comprises: delivering an occluding agent having a solid fibrous or particulate form through the vessel opening to form a solid mass of thrombus, the occluding agent effective to coagulate blood around the fibers or particles and to form a solid thrombus mass within the aneurysm chamber or peripheral vessel functional as a solid occluding cast.

Claim 10

Dependent Claim 50 words

The method of claim 1 wherein the delivering step further comprises: delivering an occluding agent comprising one or more compressible shaped members having an expanded form when unconfined and compressible for delivery through a confined space and through the vessel opening, and specifically a coil or coils of noble metals.

Claim 11

Dependent Claim 36 words

The method of claim 1 wherein the delivering step further comprises: delivering an occluding agent having a liquid form through the vessel opening, the occluding agent being reactive on exposure to form the solid occluding cast.

Claim 12

Dependent Claim 95 words

The method of claim 1 wherein said sealing and delivering steps further comprise the steps of: introducing a balloon catheter having an inflatable balloon and a delivery lumen extending therethrough terminating in a delivery exit port into a position in the main vessel adjacent to the opening; orienting the delivery exit port to the opening; inflating the balloon to fill the blood vessel and to seal the delivery exit port and the opening from the blood vessel lumen; and delivering the occluding agent through the delivery lumen and delivery exit port and into the opening.

Claim 13

Dependent Claim 172 words

The method of claim 1 wherein said sealing and delivery steps further comprise the stops of: introducing a balloon catheter having an inflatable balloon and a delivery lumen and a further lumen extending therethrough terminating in a delivery exit port and a further exit port into a position in the main vessel adjacent to the vessel opening; orienting the exit ports to the vessel opening; inflating the balloon to fill the blood vessel and to seal the exit ports and the vessel opening from the blood vessel lumen; delivering the occluding agent through the delivery lumen and delivery exit port and through the vessel opening; and venting the contents of the aneurysm chamber or peripheral vessel through the vessel opening and through the further exit port and further lumen during delivery of the occluding agent through the delivery lumen and delivery exit port and through the vessel opening, whereby the occluding agent displaces the contents of the peripheral vessel or aneurysm distal to the vessel opening to form the occluding cast therein.

Claim 14

Dependent Claim 37 words

The method of claim 12 further comprising the step of: aspirating the contents of the aneurysm chamber or branch vessel through one of the delivery or further lumens and the vessel opening before delivering the occluding agent.

Claim 15

Dependent Claim 159 words

The method of claim 1 wherein said sealing and delivery steps further comprise the steps of: introducing a balloon catheter having an inflatable balloon and first and second delivery lumens extending therethrough terminating in first and second delivery exit ports into a position in the main vessel adjacent to the vessel opening; orienting the delivery exit ports to the vessel opening; inflating the balloon to fill the blood vessel and to seal the delivery exit ports and the vessel opening from the blood vessel lumen; delivering a first component of the occluding agent through the first delivery lumen and first delivery exit port and into the opening; and delivering a second component of the occluding agent through the second delivery lumen and second delivery exit port and into the opening, whereby the first and second components of the occluding agent mix together in the peripheral vessel or aneurysm distal to the vessel opening to form the occluding cast therein.

Claim 16

Dependent Claim 44 words

The method of claim 14 further comprising the step of: aspirating the contents of the aneurysm chamber or branch vessel through one of the first or second delivery lumens and the vessel opening before delivering the first and second components of the occluding agent.

Claim 17

Dependent Claim 149 words

Apparatus for forming an occluding cast through a vessel opening in the side wall of a main blood vessel for occluding a peripheral vessel or aneurysm chamber outside of the vessel opening without occluding the vessel lumen comprising: means positionable within the main vessel lumen for temporarily sealing the main vessel side wall and vessel lumen from the vessel opening into the aneurysm or peripheral vessel to thereby shield the main vessel wall adjacent to the vessel opening; means for delivering an occluding agent through the vessel opening leading to the aneurysm chamber or peripheral vessel; and means for maintaining the sealing of the main vessel wall and vessel lumen until occlusion is effected or the occluding agent is stabilized, whereby an occluding cast is formed by or about the occluding agent within the aneurysm chamber or peripheral vessel and seals the vessel opening without occluding the main vessel.

Claim 18

Dependent Claim 149 words

Apparatus for forming an occluding cast through a vessel opening in the side wall of a main blood vessel for occluding a peripheral vessel or aneurysm chamber outside of the vessel opening without occluding the vessel lumen comprising: means positionable within the main vessel lumen for temporarily sealing the main vessel side wall and vessel lumen from the vessel opening into the aneurysm or peripheral vessel to thereby shield the main vessel wall adjacent to the vessel opening; means for delivering an occluding agent through the vessel opening leading to the aneurysm chamber or peripheral vessel; and means for maintaining the sealing of the main vessel wall and vessel lumen until occlusion is effected or the occluding agent is stabilized, whereby an occluding cast is formed by or about the occluding agent within the aneurysm chamber or peripheral vessel and seals the vessel opening without occluding the main vessel.

Claim 19

Dependent Claim 27 words

The apparatus of claim 16 further comprising: means for aspirating through the vessel opening leading to the aneurysm chamber or peripheral vessel before delivering the occluding agent.

Claim 20

Dependent Claim 38 words

The apparatus of claim 16 further comprising: means for perfusing the vessel lumen to allow blood flow through it in perfusion channel sealed from the vessel opening during delivery of the occluding agent and maintenance of the seal.

Claim 21

Dependent Claim 28 words

The apparatus of claim 16 further comprising: means for venting through the vessel opening leading to the aneurysm chamber or peripheral vessel during delivery of the occluding agent.

Claim 22

Dependent Claim 65 words

The apparatus of claim 16 wherein the occluding agent has a liquid form for delivery through the vessel opening, the occluding agent being reactive to irradiating light for solidifying as a solid occluding cast, and further comprising: means for irradiating the occluding agent delivered through the vessel opening with light directed through the vessel opening sufficiently to effect solidification of the delivered liquid occluding agent.

Claim 23

Dependent Claim 32 words

The apparatus of claim 16 wherein the occluding agent has a liquid form for delivery through the vessel opening, the occluding agent being reactive on exposure to form the solid occluding cast.

Claim 24

Dependent Claim 50 words

The apparatus of claim 16 wherein the occluding agent has a solid particulate form for delivery through the vessel opening, the occluding agent effective to coagulate blood around the particles and to form a solid thrombus mass within the aneurysm chamber or peripheral vessel functional as a solid occluding cast.

Claim 25

Dependent Claim 43 words

The apparatus of claim 16 wherein the occluding agent further comprises a compressible shaped member having an expanded form when unconfined and compressible for delivery through a confined space and through the vessel opening, and specifically a coil or coils of noble metals.

Claim 26

Dependent Claim 116 words

The apparatus of claim 16 wherein said sealing means further comprises: an elongated balloon catheter having an inflatable balloon; means for introducing the balloon catheter into a position in the main vessel adjacent to the vessel opening; and means for inflating the balloon to fill the blood vessel lumen and to seal the delivery exit port and the vessel opening from the blood vessel lumen; and wherein said delivering means further comprises: means for positioning a delivery exit port in position in the main vessel adjacent to the vessel opening to deliver the occluding agent through the vessel opening; and means for delivering the occluding agent through said delivery exit port and through said vessel opening.

Claim 27

Dependent Claim 46 words

The apparatus of claim 24 further comprising: means for rotating the balloon catheter to rotate the inflated balloon across the vessel opening after delivering the occluding agent, whereby the vessel opening is sealed from the main vessel lumen as the occluding agent forms the occluding cast.

Claim 28

Dependent Claim 42 words

The apparatus of claim 24 further comprising: means for perfusing the vessel lumen to allow blood flow through it in perfusion channel sealed from the vessel opening during delivery of the occluding agent and maintenance of the seal by said inflated balloon.

Claim 29

Dependent Claim 187 words

The apparatus of claim 16 wherein said sealing and delivery means further comprise: a balloon catheter having an inflatable balloon and a delivery lumen and a further lumen extending therethrough terminating in a delivery exit port and a further exit port; means for introducing the balloon catheter into a position in the main vessel lumen adjacent to the vessel opening and for orienting the delivery and further exit ports to the vessel opening; means for inflating the balloon to fill the blood vessel and to seal the exit ports and the vessel opening from the blood vessel lumen; means for delivering the occluding agent through the delivery lumen and delivery exit port and through the vessel opening; and means for venting the contents of the aneurysm chamber or peripheral vessel through the vessel opening and through the further exit port and further lumen during delivery of the occluding agent through the delivery lumen and delivery exit port and through the vessel opening, whereby the occluding agent displaces the contents of the peripheral vessel or aneurysm chamber distal to the vessel opening to form the occluding cast therein.

Claim 30

Dependent Claim 36 words

The apparatus of claim 27 further comprising: means for aspirating the contents of the aneurysm chamber or branch vessel through one of the delivery or further lumens and the vessel opening before delivering the occluding agent.

Claim 31

Dependent Claim 176 words

The apparatus of claim 16 wherein: said sealing means further comprise: a balloon catheter having an inflatable balloon and first and second delivery lumens extending therethrough terminating in first and second delivery exit ports; means for introducing the balloon catheter into a position in the main vessel adjacent to the vessel opening and orienting the delivery exit ports to the vessel opening; and means for inflating the balloon to fill the blood vessel and to seal the delivery exit ports and the vessel opening from the blood vessel lumen; and said delivery means further comprise: means for delivering a first component of the occluding agent through the first delivery lumen and first delivery exit port and into the vessel opening; and means for delivering a second component of the occluding agent through the second delivery lumen and second delivery exit port and into the vessel opening, whereby the first and second components of the occluding agent mix together in the peripheral vessel or aneurysm chamber distal to the vessel opening to form the occluding cast therein.

Claim 32

Dependent Claim 43 words

The apparatus of claim 29 further comprising: means for aspirating the contents of the aneurysm chamber or branch vessel through one of the first or second delivery lumens and the vessel opening before delivering the first and second components of the occluding agent.

Claim 33

Dependent Claim 227 words

A balloon catheter for delivering an occluding agent in situ into a vessel opening in the side wall of a main blood vessel and for forming an occluding cast in situ for occluding a peripheral, branch blood vessel or aneurysm chamber distal to the vessel opening without occluding the main blood vessel lumen comprising: an elongated catheter body having a proximal end segment and a distal end segment adapted to be introduced into the main blood vessel lumen in relation to the vessel opening leading to the branch blood vessel or aneurysm chamber; an inflatable balloon attached at the distal end segment of said catheter body into which inflation fluid may be delivered to inflate the balloon and withdrawn to deflate the balloon; delivery means having a delivery lumen extending from the proximal to the distal end segment of the catheter body and having an exit port in communication therewith for delivering an occluding agent to the vessel opening when positioned with respect thereto; and inflation means for inflating the balloon with inflation fluid to effect the inflation thereof within the main blood vessel lumen to form a seal of the main blood vessel around and on either side of the vessel opening and to position said delivery exit port in alignment with the vessel opening, whereby the occluding agent may be delivered through the vessel opening.

Claim 34

Dependent Claim 227 words

A balloon catheter for delivering an occluding agent in situ into a vessel opening in the side wall of a main blood vessel and for forming an occluding cast in situ for occluding a peripheral, branch blood vessel or aneurysm chamber distal to the vessel opening without occluding the main blood vessel lumen comprising: an elongated catheter body having a proximal end segment and a distal end segment adapted to be introduced into the main blood vessel lumen in relation to the vessel opening leading to the branch blood vessel or aneurysm chamber; an inflatable balloon attached at the distal end segment of said catheter body into which inflation fluid may be delivered to inflate the balloon and withdrawn to deflate the balloon; delivery means having a delivery lumen extending from the proximal to the distal end segment of the catheter body and having an exit port in communication therewith for delivering an occluding agent to the vessel opening when positioned with respect thereto; and inflation means for inflating the balloon with inflation fluid to effect the inflation thereof within the main blood vessel lumen to form a seal of the main blood vessel around and on either side of the vessel opening and to position said delivery exit port in alignment with the vessel opening, whereby the occluding agent may be delivered through the vessel opening.

Claim 35

Dependent Claim 103 words

The balloon catheter of claim 31 wherein said inflation means further comprises: an inflation lumen extending from the proximal segment to the distal segment of said catheter body and adapted to be coupled at the proximal segment to a source of inflation fluid and at the distal segment to said interior inflation space; and said delivery means delivery lumen extends from the proximal segment to the distal segment of said catheter body and is adapted to be coupled at the proximal segment to a source of an occluding agent and at the distal segment to said delivery exit port situated alongside said balloon.

Claim 36

Dependent Claim 111 words

The balloon catheter of claim 32 wherein: said balloon is formed of a balloon wall extending along said distal end segment of said catheter body and around the circumference thereof, whereby said balloon is inflatable outwardly from said distal end segment against the wall of a blood vessel on operation of said inflation means; and said delivery lumen is formed on and extends along said balloon wall a predetermined distance and is formed with said delivery exit port which faces away from said balloon and said distal end segment, whereby inflation of said balloon laterally extends said delivery exit port against a vessel opening in the wall of a blood vessel.

Claim 37

Dependent Claim 201 words

The balloon catheter of claim 33 further comprising: a further lumen extending from the proximal segment to the distal segment of said catheter body and formed on and extending along said balloon wall a predetermined distance to a further exit port which faces away from said balloon and said distal end segment, whereby inflation of said balloon laterally extends said further exit port against said vessel opening; means at the proximal end segment of said catheter body selectively adapted to couple said further lumen to deliver a component of a two component occluding agent through said further exit port and through said vessel opening, to aspirate the contents of the aneurysm chamber or branch vessel through one of the delivery or further lumens and the vessel opening before delivering the occluding agent, and to vent the contents of the aneurysm chamber or peripheral vessel through the further vessel opening and through the further exit port and further lumen during delivery of the occluding agent through the delivery lumen and delivery exit port and through the vessel opening, whereby the occluding agent displaces the contents of the peripheral vessel or aneurysm distal to the vessel opening to form the occluding cast therein.

Claim 38

Dependent Claim 144 words

The balloon catheter of claim 32 wherein: said balloon is formed of a balloon wall extending along said distal end segment of said catheter body and around at least a major section of the circumference thereof, whereby said balloon is inflatable outwardly from said distal end segment against the wall of a blood vessel on operation of said inflation means to fill the blood vessel lumen and displace the minor section of the circumference of said distal end segment of said catheter body against the blood vessel wall; and said delivery exit port is formed in said minor section of the circumference of said distal end segment a predetermined distance along the length of said balloon and faces away from said balloon, whereby inflation of said balloon laterally extends said delivery exit port against a vessel opening in the wall of a blood vessel.

Claim 39

Dependent Claim 217 words

The balloon catheter of claim 35 further comprising: a further lumen extending from the proximal segment to the distal segment of said catheter body to a further exit port, said further exit port formed in said minor section of the circumference of said distal end segment a predetermined distance along the length of said balloon facing away from said balloon, whereby inflation of said balloon laterally extends said delivery exit port against the vessel opening in the wall of a blood vessel; and means at the proximal end segment of said catheter body selectively adapted to couple said further lumen to deliver a component of a two component occluding agent through said further exit port and through said vessel opening, to aspirate the contents of the aneurysm chamber or branch vessel through one of the delivery or further lumens and the vessel opening before delivering the occluding agent, and to vent the contents of the aneurysm chamber or peripheral vessel through the further vessel opening and through the further exit port and further lumen during delivery of the occluding agent through the delivery lumen and delivery exit port and through the vessel opening, whereby the occluding agent displaces the contents of the peripheral vessel or aneurysm distal to the vessel opening to form the occluding cast therein.

Claim 40

Dependent Claim 44 words

The balloon catheter of claim 35 further comprising: means for forming a perfusior, channel between said balloon wall extending along said distal end segment of said catheter body and the main blood vessel wall sealed from said vessel opening upon inflation of said balloon.

Claim 41

Dependent Claim 161 words

The balloon catheter of claim 35 wherein: said balloon is formed of a tubular balloon wall adhered to said catheter body along said distal end segment of said catheter body in said minor section of the circumference thereof to form an adhered balloon section, whereby said balloon is inflatable outwardly from said distal end segment against the wall of a blood vessel on operation of said inflation means to fill the blood vessel lumen and displace the minor section of the circumference of said distal end segment of said catheter body and said adhered balloon section against the blood vessel wall; and said delivery exit port is formed in said minor section of the circumference of said distal end segment a predetermined distance along the length of and through said adhered balloon section and faces away from said balloon, whereby inflation of said balloon laterally extends said delivery exit port against a vessel opening in the wall of a blood vessel.

Claim 42

Dependent Claim 44 words

The balloon catheter of claim 31 further comprising: means for forming a perfusion channel between said balloon wall extending along said distal end segment of said catheter body and the main blood vessel wall sealed from said vessel opening upon inflation of said balloon.

Claim 43

Dependent Claim 170 words

The balloon catheter of claim 31 wherein: said distal segment end of said catheter body includes a distal extension terminating in a tip extending distally to said balloon; and said inflation means further comprises an inflation lumen extending from the proximal segment to the distal tip of said catheter body through said inflation lumen adapted to be coupled at the proximal segment end to a source of inflation fluid and at the distal segment end to said interior inflation space of said balloon; and further comprising: a guide wire for providing guidance of said distal end segment into position with respect to a vessel opening; means at said proximal end segment of said catheter body for receiving said guide wire in said inflation lumen; and valve means formed in said distal tip and across said inflation lumen for sealing said inflation lumen from the loss of inflation fluid during inflation of said balloon and for receiving said guide wire extending distally therethrough during introduction and positioning of said balloon catheter.

Claim 44

Dependent Claim 193 words

The balloon catheter of claim 31 wherein: said distal segment end of said catheter body includes a distal extension terminating in a tip extending distally to said balloon; and said inflation means further comprises an inflation lumen extending from the proximal segment to the distal tip of said catheter body through said inflation lumen adapted to be coupled at the proximal segment end to a source of inflation fluid and at the distal segment end to said interior inflation space of said balloon; and further comprising: a twist wire for providing guidance of said distal end segment into position with respect to a vessel opening and for providing torque transfer from the proximal segment of said catheter body to said distal tip to provide rotational movement thereof; means at said proximal end segment of said catheter body for receiving said twist wire in said inflation lumen; and means formed in said distal tip and across said inflation lumen for sealing said inflation lumen from the loss of inflation fluid during inflation of said balloon and for receiving and attaching said twist wire extending distally therethrough during introduction and positioning of said balloon catheter.

Claim 45

Dependent Claim 69 words

The apparatus of claim 31 wherein the occluding agent has a liquid form for delivery through the vessel opening, the occluding agent being reactive to irradiating light for solidifying as a solid occluding cost, and said apparatus further comprises: a source of irradiating light; means for directing said irradiating light into the occluding agent delivered through the vessel opening sufficiently to effect solidification of the delivered liquid occluding agent.

Claim 46

Dependent Claim 81 words

The apparatus of claim 31 wherein: said catheter body further comprises an inner elongated tube and an outer elongated tube in co-axial alignment to form an inner lumen and an outer lumen; and said balloon is formed of said outer tube in said distal end segment thereof; and wherein: said inflation means comprises said outer lumen; and said delivery lumen is formed within said outer tube and extends form said proximal to said distal segment terminating in said delivery exit port.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-08-17	2002-02-16	2002-08-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-08-17	2006-02-16	2006-08-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-08-17	2010-02-16	2010-08-18	$7700.00	Window Closed / Lapsed

Balloon catheter for occluding aneurysms of branch vessels

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