Abstract:
A medical device deployment catheter (702) with a distal portion with a locator marking (802,803) that permits accurate placement of the medical device. The locator marking may comprise a yellow pigmented band (803) with two black pigmented bands (802) disposed on either side of the yellow pigmented band. The catheter may further comprise a rigid tip (716) disposed at the distal end of the cavity inside the catheter shaft, the rigid tip able to accommodate at least a portion of the medical device loaded therein, wherein a at least partially transparent segment (801) disposed between the locator marking and the rigid tip, the at least partially transparent segment permitting visualization of at least a portion of the cavity near the distal end of the catheter shaft. The catheter shaft may further comprise a strain relief tube extending over at least a proximal portion of the catheter shaft.
Abstract:
The preferred embodiment of the invention contemplates a device configured to prepare and deploy a resilient sleeve on to a portion of body tissue. The device expands the resilient sleeve, uses a vacuum system to draw the body tissue in to the resilient sleeve, and releases the resilient sleeve from the expanded state so that it captures and constricts the body tissue.
Abstract:
The invention provides an implantable tissue constriction device (70) and method for suppressing leakage from resectioned body tissue. The device includes a first elongated member (82) having a constricting surface (84), and a second elongated member (92) having another constricting surface (94), the constricting surfaces (84,94) being arranged in combination to circumscribe tissue to be excised, to an extent necessary to suppress leakage from body tissue remaining after excision of the tissue to be excised. One elongated constrictive surface may include a pliable material arranged to contact the circumscribed tissue and accommodate anatomical variations. The device (70) may include a pivot (72, 74) coupled between the first and second elongated members (82, 92), about which the constricting surfaces (84, 94) are moveable together in opposition. The devices may include a bias element (152) coupled between the first and second member that brings the constricting surfaces together in opposition.
Abstract:
A device according to an aspect of the invention includes an air escapement conduit (52) having an inlet port providing air communication with a chest cavity (51) and an outlet port providing air communicaiton with a vacuum source (22), the conduit allowing an air flow from the inlet port (48) to the outlet port (49) in response to a pressure differential between the ports, and a detector responsive to the air flow that provides a signal (S1) related to the air flow. The device may include an indicator device (60) operable to provide evacuation information in response to the signal. The air escapement conduit may include a bubble chamber (42) or a valving mechanism (210). The detector may be a pressure differential sensor (122) operable to detect a difference in air pressure between the inlet port and the outlet port, and generate a signal related (S1) to the difference.
Abstract:
An obstructive device (90) prevents air from being inhaled into a lung portion to collapse the lung portions while providing mucus transport from the lung portion. When placed in an air passageway serving the lung portion, the obstructing member (90) defines a pathway for mucus transport between the obstructing member (90) and the air passageway. The device (90) may include a tubular-shaped anchor to retain the device (90) in the air passageway. A pathway for mucus transport is provided between a portion of the anchor and a portion of the obstructing device (90).
Abstract:
An intra-bronchial device may be placed in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes an obstructing member that prevents air from being inhaled into the lung portion to collapse the lung portion, and an anchoring device that anchors the obstructing member in the air passageway by engaging the obstructing member and the air passageway wall. The anchoring device may frictionally engage the obstructing member and the air passageway, or engage both by piercing. The engagement provided by the anchoring device may be releasable for removal of the obstructing member. The anchoring device may be balloon expandable from a first shape to a second shape that engages the obstructing member and the air passageway. The obstructing member may be a one-way valve.
Abstract:
A device, system, and method provides for removing deleterious tissue from healthy body tissue at a site inside a patient. The device includes a steerable electrosurgery device (88) having a electrode (98) to cut a core through tissue, including tissue surrounding a perimeter of the deleterious tissue, and a lumen (in 98) for aspirating the cored tissue from the patient. The electrode may form a closed loop, and may be the active electrode of an electrosurgery system. Further, the electrode may have a narrow profile. In addition, the electrode may be arranged to coagulate the cut tissue. The system includes the device and a seal to limit air leaks and bleeding from the removal of cored tissue.
Abstract:
An intra-bronchial device (100) may be placed and anchored in an air passageway (50) of a patient to collapse a lung portion associated with the air passageway. The device includes an obstructing member (110) that prevents air from being inhaled into the lung portion, and an anchor (112) that anchors the obstruction device (110) within the air passageway. The anchor (112) may piercingly engage the air passageway wall. The anchor (112) may be releasable from the air passageway wall. The anchor (112) may be releasable from the air passageway for removal of the obstructing member (110). The anchor (112) may be releasable by collapsing a portion of the obstructing member (110), or by drawing the obstructing member toward the larynx. The obstructing member (110) may be a one-way valve.
Abstract:
A constriction device that constricts body tissue includes fixation structures for fixing the device on constricted body tissue. The device includes an elongated sleeve including an inner surface and opposed opened ends. The device is formed from expandable or elastic material so that when in an expanded condition, body tissue to be constricted may be received therein and thereafter, when released from the expanded condition, the body tissue is constricted by the device. The fixation structures include a plurality of fixation elements on the inner surface of the sleeve that grasp the body tissue upon release of the sleeve from the expanded condition to fix the device on the constricted tissue.
Abstract:
A device comprising: a first jaw having a gripping surface; a second jaw having a gripping surface, the second jaw being spaced apart from the first jaw and being configured to move between an open position and a closed position, and a sealer divider having a plurality of stops including at least: one or more distal stops, one or more proximal stops; and one or more intermediate stops that are of an intermediate height when compared to a height of the one or more distal stops and a height the one or more proximal stops, and wherein the plurality of stops are non-conductive and are distributed on the gripping surface of the first jaw, the gripping surface of the second jaw, or both, and wherein the first jaw and the second jaw have a proximal end and a distal end and the plurality of stops produce a gap that is widest at the proximal end and tapers so that a gap at the distal end is narrower than the gap at the proximal end.