MRI-Compatible Temperature-Sensing Catheter
First Claim
Patent Images
1. An MRI compatible catheter comprising:
- a catheter body having a lumen;
a sensor wire disposed within said lumen; and
an insulating tube disposed around said sensor wire.
1 Assignment
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Accused Products
Abstract
A preferred embodiment includes an MRI compatible catheter that maintains a desired temperature during an MRI procedure. Specifically, the catheter includes a lumen containing sensor wire that is surrounded by an insulating material. This material limits the transfer of heat to the outside of the catheter as the sensor wire heats during an MRI procedure.
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Citations
27 Claims
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1. An MRI compatible catheter comprising:
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a catheter body having a lumen; a sensor wire disposed within said lumen; and an insulating tube disposed around said sensor wire. - View Dependent Claims (2, 3, 4)
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5. An MRI compatible catheter comprising:
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a catheter body having a lumen; a sensor wire disposed within said lumen; and a plurality of insulating members disposed on said sensor wire. - View Dependent Claims (6, 7, 8)
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9. An MRI compatible catheter comprising:
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a catheter body having a first lumen in communication with a second lumen;
said first lumen coupled to a supply of cooling fluid and said second lumen having an exit for said cooling fluid;a sensor wire located in said second lumen so as to be contacted by cooling fluid during inflow of said cooling fluid to said catheter body. - View Dependent Claims (10, 11)
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12. An MRI compatible catheter comprising:
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a catheter having a lumen; a first passage in communication with said lumen and a cooling fluid supply; a sensor wire at least partially disposed in said lumen and positioned through a second passage that leads to an outside of said catheter; a third passage providing an exit for said cooling fluid from said lumen. - View Dependent Claims (13)
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14. A removable catheter comprising:
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a catheter body having a lumen and a first passage in communication with said lumen; a probe removably disposed in said first passage; and a user-actuated connection between said first passage and said probe. - View Dependent Claims (15)
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16. A method of using a catheter comprising:
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providing a catheter comprising a sensor wire; placing a catheter within a patient; supplying a cooling fluid to said catheter; operating an MRI machine on said patient; limiting a temperature rise of said catheter to about 4°
C. - View Dependent Claims (17)
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18. A method of using a using a catheter comprising;
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placing said catheter within a patient; removing a probe from a lumen said catheter; performing an MRI procedure on said patient; replacing said probe within said lumen of said catheter. - View Dependent Claims (19)
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20. A method of using a probe comprising:
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placing a bolt within a patient; providing a manifold member connected to an elongated extension member; coupling said manifold member to said bolt; placing a probe through a passage of said manifold and into a lumen of said elongated extension member; removing said probe from said passage; performing an MRI procedure on said patient; replacing said within said passage of said manifold member. - View Dependent Claims (21, 22)
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23. A system for removably placing a probe within a patient comprising:
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a bolt member implantable within a patient; a manifold connectable to said bolt member;
said manifold comprising a first passage;an elongated extension in communication with said first passage; and a probe connectable to at least one of said plurality of passages. - View Dependent Claims (24, 25, 26, 27)
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Specification