Methods and apparatuses for navigating the subarachnoid space
First Claim
1. A method of navigating a spinal subarachnoid space in a living being, comprising:
- percutaneously introducing a guidewire in a first direction through an introducer and into the spinal subarachnoid space at an entry location, the guidewire being sufficiently flexible to navigate the spinal subarachnoid space, the introducer having a distal end;
advancing the guidewire in a second direction beyond the distal end of the introducer, the second direction being different from the first direction;
percutaneously introducing a device over the guidewire and into the spinal subarachnoid space, the device having a first passageway sized to slidably receive, and work with, at least the guidewire, and the guidewire being positioned in the first passageway;
advancing the device over the guidewire and within the spinal subarachnoid space at least more than 10 centimeters from the entry location;
introducing a penetration apparatus through the first passageway of the device, the penetration apparatus including an outer sleeve element and an inner puncture element, the outer sleeve element and the inner puncture element being slidably coupled together;
puncturing the pia matter using the penetration apparatus; and
advancing the device over the guidewire from the spinal subarachnoid space into the intracranial subarachnoid space.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a method of navigating a spinal subarchnoid space in a living being, that includes percutaneously introducing a device into the spinal subarachnoid space at an entry location. The device has a first passageway that is sized to slidably receive, and work with, at least a guidewire. The device can be a catheter or a sheath. The method can also include advancing the device within the spinal subarachnoid space at least more than 10 centimeters from the entry location. Alternatively, the method can include advancing the device within the spinal subarachnoid space to facilitate intracranial access with a second device introduced through the first passageway. Also disclosed is a device suited for attachment to a patient'"'"'s skin, such as a sheath, that includes an elongated member, a skin-attachment apparatus having a flexible skin-attachment flap, and a valve apparatus. The skin-attachment apparatus and the valve apparatus may be coupled to the elongated member in spaced relation to each other.
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Citations
25 Claims
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1. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a guidewire in a first direction through an introducer and into the spinal subarachnoid space at an entry location, the guidewire being sufficiently flexible to navigate the spinal subarachnoid space, the introducer having a distal end; advancing the guidewire in a second direction beyond the distal end of the introducer, the second direction being different from the first direction; percutaneously introducing a device over the guidewire and into the spinal subarachnoid space, the device having a first passageway sized to slidably receive, and work with, at least the guidewire, and the guidewire being positioned in the first passageway; advancing the device over the guidewire and within the spinal subarachnoid space at least more than 10 centimeters from the entry location; introducing a penetration apparatus through the first passageway of the device, the penetration apparatus including an outer sleeve element and an inner puncture element, the outer sleeve element and the inner puncture element being slidably coupled together; puncturing the pia matter using the penetration apparatus; and advancing the device over the guidewire from the spinal subarachnoid space into the intracranial subarachnoid space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a guidewire in a direction through an introducer and into the spinal subarachnoid space at an entry location, the guidewire being sufficiently flexible to navigate the spinal subarachnoid space, the introducer having a distal end; advancing the guidewire in another direction beyond the distal end of the introducer; percutaneously introducing a device over the guidewire and into the spinal subarachnoid space, the device having a first passageway sized to slidably receive, and work with, at least the guidewire, and the guidewire being positioned in the first passageway; advancing the device over the guidewire and within the spinal subarachnoid space at least more than 10 centimeters from the entry location; introducing a penetration apparatus through the first passageway of the device, the penetration apparatus including an outer sleeve element and an inner puncture element, the outer sleeve element and the inner puncture element being slidably coupled together; puncturing the pia matter using the penetration apparatus; accessing at least one ventricle located within the head with a second device introduced through the first passageway of the device; and inducing hypothermia in at least some brain tissue. - View Dependent Claims (18)
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19. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a guidewire in a first direction through an introducer and into the spinal subarachnoid space at an entry location, the guidewire being sufficiently flexible to navigate the spinal subarachnoid space, the introducer having a distal end; advancing the guidewire in a second direction beyond the distal end of the introducer, the second direction being different from the first direction; percutaneously introducing a device over the guidewire and into the spinal subarachnoid space, the device having a first passageway sized to slidably receive, and work with, at least the guidewire, and the guidewire being positioned in the first passageway; advancing the device over the guidewire and within the spinal subarachnoid space at least more than 10 centimeters from the entry location; introducing a penetration apparatus through the first passageway of the device, the penetration apparatus including an outer sleeve element and an inner puncture element, the outer sleeve element and the inner puncture element being slidably coupled together; and puncturing the pia matter using the penetration apparatus.
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20. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a guidewire into the spinal subarachnoid space at an entry location, the guidewire being sufficiently flexible to navigate the spinal subarachnoid space; percutaneously introducing a device over the guidewire and into the spinal subarachnoid space, the device having a first passageway sized to slidably receive, and work with, at least the guidewire, and the guidewire being positioned in the first passageway; and advancing the device over the guidewire and within the spinal subarachnoid space at least more than 10 centimeters from the entry location; wherein the advancing is achieved via a robotic device.
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21. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a device into the spinal subarachnoid space at an entry location, the device having a first passageway sized to slidably receive, and work with, at least a guidewire; advancing the device within the spinal subarachnoid space at least more than 10 centimeters from the entry location; introducing a penetration apparatus through the first passageway of the device, the penetration apparatus including an outer sleeve element and an inner puncture element, the outer sleeve element and the inner puncture element being slidably coupled together; and puncturing the pia matter using the penetration apparatus.
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22. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a device into the spinal subarachnoid space at an entry location, the device having a first passageway sized to slidably receive, and work with, at least a guidewire; and advancing the device within the spinal subarachnoid space at least more than 10 centimeters from the entry location using a robotic device.
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23. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a device into the spinal subarachnoid space at an entry location, the device having a first passageway sized to slidably receive, and work with, at least a guidewire; advancing the device within the spinal subarachnoid space at least more than 10 centimeters from the entry location; introducing a penetration apparatus through the first passageway of the device, the penetration apparatus including an outer sleeve element and an inner puncture element, the outer sleeve element and the inner puncture element being slidably coupled together; puncturing the pia matter using the penetration apparatus; advancing the device over the guidewire from the spinal subarachnoid space into the intracranial subarachnoid space; introducing an electroencephalography electrode through the first passageway of the device; and placing the electrode on or in brain tissue.
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24. A method of navigating a spinal subarachnoid space in a living being, comprising:
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percutaneously introducing a device into the spinal subarachnoid space at an entry location, the device having a first passageway sized to slidably receive, and work with, at least a guidewire; advancing the device within the spinal subarachnoid space at least more than 10 centimeters from the entry location; introducing a penetration apparatus through the first passageway of the device, the penetration apparatus including an outer sleeve element and an inner puncture element, the outer sleeve element and the inner puncture element being slidably coupled together; puncturing the pia matter using the penetration apparatus; and accessing at least one ventricle located within the head with a second device introduced through the first passageway of the device. - View Dependent Claims (25)
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Specification