Devices for maintaining patency of surgically created channels in tissue
First Claim
Patent Images
1. A hole-making catheter for creating and dilating an opening within tissue, the catheter comprising;
- an elongate shaft having a proximal portion and a distal portion, and at least one lumen extending through the proximal end;
a nondistensible balloon having an interior in fluid communication with the lumen, the nondistensible balloon located on the distal portion of the elongate shaft; and
an actuatable piercing member cooperatively affixed to the catheter and located at the distal portion of the elongate shaft, the piercing member being extendable distal to the distal portion of the elongate shaft to create an opening within tissue and wherein the piercing member is configured to be removed from the tissue opening prior to the distal portion of the elongate shaft entering the opening such that collateral damage to tissue is minimized when the elongate shaft is being advanced through tissue.
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Accused Products
Abstract
Devices and methods for altering gaseous flow within a lung to improve the expiration cycle of an individual, particularly individuals having chronic obstructive pulmonary disease. The methods and devices create channels in lung tissue and maintain the patency of these surgically created channels in tissue. Maintaining the patency of the channels allows air to pass directly out of the lung tissue which facilitates the exchange of oxygen ultimately into the blood and/or decompresses hyper-inflated lungs.
299 Citations
37 Claims
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1. A hole-making catheter for creating and dilating an opening within tissue, the catheter comprising;
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an elongate shaft having a proximal portion and a distal portion, and at least one lumen extending through the proximal end; a nondistensible balloon having an interior in fluid communication with the lumen, the nondistensible balloon located on the distal portion of the elongate shaft; and an actuatable piercing member cooperatively affixed to the catheter and located at the distal portion of the elongate shaft, the piercing member being extendable distal to the distal portion of the elongate shaft to create an opening within tissue and wherein the piercing member is configured to be removed from the tissue opening prior to the distal portion of the elongate shaft entering the opening such that collateral damage to tissue is minimized when the elongate shaft is being advanced through tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A hole-making catheter for creating and dilating an opening within tissue, the catheter comprising;
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an elongate shaft having a proximal portion and a distal portion, and at least one lumen extending through the proximal end; a nondistensible balloon having proximal end and a distal end and an interior in fluid communication with the lumen, the nondistensible balloon located on the distal portion of the elongate shaft, and an actuatable piercing member cooperatively affixed to the catheter and located at the distal portion of the elongate shaft, the piercing member being slidable within the elongate shaft such that a distal end of the piercing member may extend distal to a distal end of the balloon to create an opening within tissue and, upon sliding of the piercing member, the distal end of the balloon may be distal to the distal end of the piercing member, wherein the piercing member is configured to be removed from the tissue opening prior to the distal portion of the elongate shaft entering the opening such that collateral damage to tissue is minimized when the elongate shaft is being advanced through tissue. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A implant delivery system for deploying the implant within a wall of tissue, the system comprising;
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an elongate shaft having a distal portion, a proximal end, a distal end, at least one lumen extending through the proximal end; a nondistensible balloon member having an interior in fluid communication with the lumen, the nondistensible balloon member located on the distal portion of the elongate shaft; an actuatable piercing member cooperatively affixed to the delivery system and distally located to the distal end of the elongate shaft within a second lumen, the solid piercing member being actuatable relative to the distal end of the elongate shaft and having a sharpened distal end adapted to penetrate tissue to create an opening within tissue and wherein the piercing member is configured to be removed from the tissue opening prior to the distal end of the elongate shaft entering the opening such that collateral damage to tissue is minimized when the elongate shaft is being advanced through tissue; and an expandable implant located about the balloon member. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification