OBTAINING A TISSUE SAMPLE
First Claim
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1. A biopsy system, comprising:
- a catheter device having an elongate body that extends from a proximal portion to a distal portion, the distal portion being deliverable to a targeted heart chamber, the catheter device including;
a fluid delivery lumen, a pressure sensor channel, and a working channel;
tissue collection jaws disposed along the distal portion to obtain a sample of body tissue from the targeted heart chamber, the tissue collection jaws being adjustable from an opened position to a closed position in response to movement of an actuation rod within the working channel;
an inflatable balloon device to maintain position of the distal portion in the targeted heart chamber when the balloon device is expanded to an inflated condition, the balloon device being disposed along the distal portion and in fluid communication with the fluid delivery lumen; and
a pressure sensor device to detect a blood pressure proximate to the tissue collection jaws, the pressure sensor device in communication with the pressure sensor channel, the pressure sensor device outputting data signals to external monitoring equipment that indicates pressure readings viewable to a practitioner while catheter device is being delivered to the targeted heart chamber.
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Abstract
Some embodiments of a biopsy system are configured to obtain a sample of tissue from an internal body site, such as a portion of myocardial tissue from a heart chamber wall. The biopsy system may include a catheter device having tissue collection jaws and an inflatable balloon disposed along a distal portion. Also, the biopsy system may include a pressure sensor device to detect the pressure within the heart chamber in which the tissue collection jaws are disposed.
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Citations
27 Claims
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1. A biopsy system, comprising:
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a catheter device having an elongate body that extends from a proximal portion to a distal portion, the distal portion being deliverable to a targeted heart chamber, the catheter device including;
a fluid delivery lumen, a pressure sensor channel, and a working channel;tissue collection jaws disposed along the distal portion to obtain a sample of body tissue from the targeted heart chamber, the tissue collection jaws being adjustable from an opened position to a closed position in response to movement of an actuation rod within the working channel; an inflatable balloon device to maintain position of the distal portion in the targeted heart chamber when the balloon device is expanded to an inflated condition, the balloon device being disposed along the distal portion and in fluid communication with the fluid delivery lumen; and a pressure sensor device to detect a blood pressure proximate to the tissue collection jaws, the pressure sensor device in communication with the pressure sensor channel, the pressure sensor device outputting data signals to external monitoring equipment that indicates pressure readings viewable to a practitioner while catheter device is being delivered to the targeted heart chamber. - View Dependent Claims (2, 3)
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4. A biopsy system for collecting a sample of heart tissue, comprising:
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a catheter device having an elongate body that extends from a proximal portion to a distal portion, the distal portion being deliverable to a targeted heart chamber; tissue collection jaws to obtain a sample of body tissue, the tissue collection jaws being disposed along the distal portion; an inflatable balloon device to maintain position of the distal portion in the targeted heart chamber when the balloon device is expanded to an inflated condition, the balloon device being disposed along the distal portion. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for obtaining a myocardial tissue sample, comprising:
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advancing a distal portion of a catheter device through a right atrium and into a right ventricle; inflating a balloon device disposed along the distal portion so as to maintain position of the distal portion in the right ventricle; actuating tissue collection jaws to remove myocardial tissue from a chamber wall of the right ventricle. - View Dependent Claims (27)
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Specification