Trans-septal intra-cardiac lead system
First Claim
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1. A lead configured for measuring pressure in a heart comprising:
- a lead body;
a first elastic disk membrane attached to a distal portion of the lead body and adapted to attach the lead body to a first side of a septal wall in a heart, the first elastic disk membrane maneuvered to lie relatively flat against the first side of the septal wall to minimize likelihood of blood clot formation;
a second elastic disk membrane distal to the first elastic disk membrane, the second elastic disk membrane attached to the distal portion of the lead body and adapted to attach the lead body to a second side of the septal wall in the heart, the second elastic disk membrane maneuvered to lie relatively flat against the second side of the septal wall to minimize likelihood of blood clot formation; and
at least one pressure sensor attached to the distal portion of the lead body and adapted to measure pressure at the second side of the septal wall in the heart;
wherein the second elastic disk membrane comprises at least one flexible diaphragm, the lead comprising at least one lumen wherein the at least one lumen is filled with a fluid, wherein the fluid in communication with the at least one flexible diaphragm, and wherein the fluid is in communication with the at least one pressure sensor; and
wherein the second elastic disk membrane and the at least one flexible diaphragm are integral.
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Abstract
An apparatus for and method of measuring pressure through a septum in a patient'"'"'s heart is disclosed. A lead inserted into the right side of a heart is routed through the septum to gain access to the left side of the heart. The lead includes an attachment structure that secures the lead to one or both of the septal walls. The attachment structure may include at least one protruding tine, membrane, inflatable balloon, involuted spiral or J-lead that engage one or more sides of the septum. The lead also includes one or more sensors for measuring cardiac pressure on the left side of the heart and, as necessary, the right side of the heart.
79 Citations
14 Claims
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1. A lead configured for measuring pressure in a heart comprising:
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a lead body; a first elastic disk membrane attached to a distal portion of the lead body and adapted to attach the lead body to a first side of a septal wall in a heart, the first elastic disk membrane maneuvered to lie relatively flat against the first side of the septal wall to minimize likelihood of blood clot formation; a second elastic disk membrane distal to the first elastic disk membrane, the second elastic disk membrane attached to the distal portion of the lead body and adapted to attach the lead body to a second side of the septal wall in the heart, the second elastic disk membrane maneuvered to lie relatively flat against the second side of the septal wall to minimize likelihood of blood clot formation; and at least one pressure sensor attached to the distal portion of the lead body and adapted to measure pressure at the second side of the septal wall in the heart; wherein the second elastic disk membrane comprises at least one flexible diaphragm, the lead comprising at least one lumen wherein the at least one lumen is filled with a fluid, wherein the fluid in communication with the at least one flexible diaphragm, and wherein the fluid is in communication with the at least one pressure sensor; and wherein the second elastic disk membrane and the at least one flexible diaphragm are integral. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification