Guide catheter for introduction into the subarachnoid space and methods of use thereof
First Claim
Patent Images
1. A medical device having a distal end, a proximal end, and an elongate member therebetween, the medical device comprising:
- a first inflatable member, the inflatable member disposed on the elongate member such that, when inflated, the inflatable member extends outward from the elongate member, the first inflatable member adapted to expand to a size corresponding to an inner dimension of a patient'"'"'s subarachnoid space; and
a first inflation lumen providing fluid communication with the first inflatable member from a location proximal of the first inflatable member.
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Abstract
Methods and devices for providing a medical device for use within the subarachnoid space are presented. The medical device may be a guide catheter including anchoring members or other mechanisms for securing a location or a pathway within the subarachnoid space. In some embodiments, the medical device may include multiple articulating elements which may pass through one another, with one or more of the articulating elements including an anchoring member.
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Citations
70 Claims
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1. A medical device having a distal end, a proximal end, and an elongate member therebetween, the medical device comprising:
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a first inflatable member, the inflatable member disposed on the elongate member such that, when inflated, the inflatable member extends outward from the elongate member, the first inflatable member adapted to expand to a size corresponding to an inner dimension of a patient'"'"'s subarachnoid space; and
a first inflation lumen providing fluid communication with the first inflatable member from a location proximal of the first inflatable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A medical device having a proximal end and a distal end and an elongate member therebetween, the medical device comprising:
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a first lumen;
a second lumen; and
a first shapable member having a first stiffness when at a first temperature and a second stiffness when at a second temperature, the first stiffness being greater than the second stiffness;
wherein the shapable member is adapted for insertion into the first lumen and wherein the first temperature corresponds to a patient'"'"'s normal body temperature. - View Dependent Claims (13, 14, 15, 16)
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17. A medical device having a proximal end and a distal end, the medical device comprising:
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a first component including a first elongate member defining a first lumen, and a first anchoring device; and
a second component including a second elongate member defining a second lumen and a second anchoring device;
wherein the second lumen and the first component are adapted to allow the first component to be slidably disposed within the second component for at least a portion of the first elongate member. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A medical device having a proximal end and a distal end, the medical device comprising:
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a first component including a first elongate member defining a first inflation lumen, a first inflatable member in fluid communication with the first inflation lumen, and a first passage lumen therethrough; and
a second component including a second elongate member defining a second inflation lumen, a second inflatable member in fluid communication with the second inflation lumen, and a second passage lumen therethrough;
wherein the second passage lumen and the first component are adapted to allow the first component to be slidably disposed within the second component for at least a portion of the first elongate member. - View Dependent Claims (24, 25, 26, 27)
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28. A method of positioning a device inside a subarachnoid space, the method comprising:
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providing a medical device including an anchoring member, the anchoring member having a first configuration and a second configuration, wherein when the anchoring member is disposed in the first configuration the anchoring member is easier to move within the subarachnoid space than when the anchoring member is disposed in the second configuration;
introducing the medical device into a spinal subarachnoid space within the subarachnoid space with the anchoring member in the first configuration;
advancing the medical device until the anchoring member is in a desired position; and
causing the anchoring member to be disposed in the second configuration once the anchoring member is in the desired position. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A guide catheter, the guide catheter comprising:
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a first elongate member having a proximal end and a distal end and including a first anchoring means for effecting an anchoring function; and
a second elongate member having a proximal end and a distal end and including a second anchoring means for effecting an anchoring function;
wherein the first elongate member and the second elongate member are engaged for at least a portion of the length of the first elongate member, and wherein the second elongate member is adapted to slide beyond the distal end of the first elongate member. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of navigating a patient'"'"'s subarachnoid space, the method comprising:
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providing a navigation device having a proximal end and a distal end and including a first anchoring device and a second anchoring device;
percutaneously introducing the navigation device into the spinal subarachnoid space;
manipulating the navigation device into a first desired position within the subarachnoid space;
causing the first anchoring device to perform an anchoring function;
manipulating the navigation device into a second desired position within the subarachnoid space; and
causing the second anchoring device to perform an anchoring function. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. A medical device having a distal end, a proximal end, and an elongate member therebetween, the medical device comprising:
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an anchoring device, the anchoring device engaging the elongate member such that the anchoring device may selectively perform an anchoring function when a portion of the elongate member engaged with the anchoring device is disposed within a spinal subarachnoid space; and
an actuation apparatus for enabling the selectivity of the first anchoring device. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64)
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65. A balloon catheter inflation system comprising:
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a catheter having a proximal end, a distal end, an elongate section therebetween, the elongate section including an inflation lumen therethrough and an inflatable member disposed thereupon; and
an inflation fluid comprising materials adapted for introduction into the spinal subarachnoid space. - View Dependent Claims (66, 67, 68)
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69. A medical device comprising:
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an elongate member including a proximal end and a distal end;
a means for anchoring a portion of the elongate member within a subarachnoid space of a patient.
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70. A method of navigating a patient'"'"'s subarachnoid space, the method comprising:
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providing an elongated navigation device including a means for anchoring a portion of the navigation device within the subarachnoid space;
percutaneously introducing the portion of the navigation device within the subarachnoid space; and
anchoring the portion of the navigation device within the subarachnoid space using the means for anchoring.
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Specification