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;
at least one involuted spiral tine attached to a distal portion of the lead body and adapted to attach the lead body to a wall in a heart; and
at least one pressure sensor attached to the distal portion of the lead body and adapted to measure pressure at a distal side of the wall in the heart;
wherein the at least one pressure sensor is attached to an end of one of the at least one involuted spiral tine; and
wherein before implantation, the at least one involuted spiral tine is maintained in a relatively straight configuration within the distal portion of the lead body.
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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.
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Citations
20 Claims
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1. A lead configured for measuring pressure in a heart comprising:
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a lead body; at least one involuted spiral tine attached to a distal portion of the lead body and adapted to attach the lead body to a wall in a heart; and at least one pressure sensor attached to the distal portion of the lead body and adapted to measure pressure at a distal side of the wall in the heart; wherein the at least one pressure sensor is attached to an end of one of the at least one involuted spiral tine; and wherein before implantation, the at least one involuted spiral tine is maintained in a relatively straight configuration within the distal portion of the lead body. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A lead configured for measuring pressure in a heart comprising:
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a lead body; at least one involuted spiral tine attached to a distal portion of the lead body and adapted to attach the lead body to a wall in a heart; and at least one pressure sensor attached to the distal portion of the lead body and adapted to measure pressure at a distal side of the wall in the heart; wherein before implantation, the at least one involuted spiral tine is maintained in a relatively straight configuration within the distal portion of the lead body; wherein the at least one involuted spiral tine comprises involuted spiral tines spaced longitudinally along the lead body; and wherein the wall in the heart is a septal wall, and wherein the at least one involuted spiral tine comprises a first involuted spiral tine adapted to be disposed relatively flat against a first side of the septal wall and a second involuted spiral tine is adapted to be disposed relatively flat against a second side of the septal wall. - View Dependent Claims (8, 9, 10)
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11. A lead configured for measuring pressure in a heart comprising:
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a lead body; at least one involuted spiral tine attached to a distal portion of the lead body and adapted to attach the lead body to a wall in a heart; and at least one pressure sensor attached to the distal portion of the lead body and adapted to measure pressure at a distal side of the wall in the heart; wherein before implantation, the at least one involuted spiral tine is maintained in a relatively straight configuration within the distal portion of the lead body; wherein the at least one involuted spiral tine comprises a first involuted spiral tine having a first orientation and a second involuted spiral tine having a second orientation, and wherein the first orientation is different than the second orientation; and wherein the wall in the heart is a septal wall, and wherein the first involuted spiral tine is adapted to be disposed relatively flat against a first side of the septal wall and the second involuted spiral tine is adapted to be disposed relatively flat against a second side of the septal wall. - View Dependent Claims (12, 13, 14, 15)
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16. A lead configured for measuring pressure in a heart comprising:
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a lead body; at least one involuted spiral tine attached to a distal portion of the lead body and adapted to attach the lead body to a wall in a heart; and at least one pressure sensor attached to the distal portion of the lead body and adapted to measure pressure at a distal side of the wall in the heart; wherein before implantation, the at least one involuted spiral tine is maintained in a relatively straight configuration within the distal portion of the lead body; wherein the at least one involuted spiral tine comprises a first involuted spiral tine having a first orientation and a second involuted spiral tine having a second orientation, and wherein the first orientation is different than the second orientation; and wherein the first involuted spiral tine is adapted to be disposed within the right atrium and the second involuted spiral tine is adapted to be disposed within the left atrium. - View Dependent Claims (17, 18, 19, 20)
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Specification