Cardioverter-Defibrillator Having a Focused Shocking Area and Orientation Thereof
First Claim
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1. An implantable defibrillator comprising:
- a housing having a length of about 30 cm and having first and second ends with a first electrode disposed on the first end and a second electrode disposed on the second end;
the housing containing operational circuitry configured to receive cardiac signals from the first and second electrodes and deliver defibrillation energy via the first and second electrodes;
the housing being shaped to allow implantation over the ribcage of a patient such that when the first end is disposed at a left parasternal location, the second end extends to underneath the patient'"'"'s left arm; and
the housing being configured to define a first curvature across a first region near the first end and a second curvature across a second region near the second end, the first curvature being generally planar and the second curvature being generally non-planar, such that the housing will conform to the contours of the ribcage when implanted subcutaneously.
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Abstract
One embodiment of the present invention provides an implantable cardioverter defibrillator for subcutaneous positioning between the third rib and the twelfth rib within a patient, the implantable cardioverter-defibrillator including a housing; an electrical circuit located within the housing; a first electrode coupled to the electrical circuit and located on the housing; and a second electrode coupled to the electrical circuit.
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Citations
20 Claims
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1. An implantable defibrillator comprising:
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a housing having a length of about 30 cm and having first and second ends with a first electrode disposed on the first end and a second electrode disposed on the second end; the housing containing operational circuitry configured to receive cardiac signals from the first and second electrodes and deliver defibrillation energy via the first and second electrodes; the housing being shaped to allow implantation over the ribcage of a patient such that when the first end is disposed at a left parasternal location, the second end extends to underneath the patient'"'"'s left arm; and the housing being configured to define a first curvature across a first region near the first end and a second curvature across a second region near the second end, the first curvature being generally planar and the second curvature being generally non-planar, such that the housing will conform to the contours of the ribcage when implanted subcutaneously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of implanting a defibrillator, comprising:
- making an incision at approximately the 5th-6th intercostal spaces on the left side of a patient'"'"'s torso;
tunneling beneath the skin from the incision to a left parasternal location to create a tunneled subcutaneous space; and implanting an elongated housing having a first end with a first electrode and a second end with a second electrode, the housing defining first and second curvatures, with a first generally planar curvature near the first end and a second non-planar curvature near the second end such that the housing generally conforms to the shape of the patient'"'"'s ribcage, through the incision into the tunneled subcutaneous space so that the first end of the housing is at the left parasternal location and the second end of the housing reaches a region beneath the left arm of the patient. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
- making an incision at approximately the 5th-6th intercostal spaces on the left side of a patient'"'"'s torso;
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17. An implantable defibrillator consisting of:
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a housing having a length of about 30 cm and having first and second ends with a first electrode disposed on the first end and a second electrode disposed on the second end; the housing containing operational circuitry configured to receive cardiac signals from the first and second electrodes and deliver defibrillation energy via the first and second electrodes; the housing being shaped to allow implantation over the ribcage of a patient such that when the first end is disposed at a left parasternal location, the second end extends to underneath the patient'"'"'s left arm; the housing being configured to define a first curvature across a first region near the first end and a second curvature across a second region near the second end, the first curvature being generally planar and the second curvature being generally non-planar, such that the housing will conform to the contours of the ribcage when implanted subcutaneously. - View Dependent Claims (18, 19, 20)
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Specification