An atherectomy system that utilizes an anchoring balloon with a rotary debulker and a crossing balloon to remove or debulk lesions formed on the interior wall surface of a body vessel. The system may include a first balloon coupled to a first tubular member, a rotary debulker coupled to a second tubular member, a second balloon coupled to both the third tubular member and the axially moveable fourth tubular member such that the second balloon is disposed inside the third tubular member. Methods for operating this device are also provided.

Systems and methods for reducing insufflation loss due to gas leakage during a laparoscopic surgical procedure are provided. The surgical procedure includes the use of a surgical instrument having an end effector and a trocar through which the surgical instrument is inserted for access to the abdominal cavity of a patient receiving laparoscopic surgery. The trocar includes a lip, a lip seal disposed within the lip, and a cannula located beneath the lip. The systems and methods reduce or prevent a loss of insufflation when using conventional systems and methods to insert the surgical instrument through a conventional trocar.

Devices for removing clot material from a blood vessel lumen and associated systems and methods are disclosed herein. A clot retrieving device may include, for example, an elongated shaft, a capture structure, a cover, and a connector coupled to the elongated shaft proximal of the capture structure. The connector may include an inner band and an outer band, wherein (a) the inner band at least partially surrounds a portion of the distal zone of the elongated shaft, (b) the outer band at least partially surrounds the inner band, and (c) the first portion of the cover is secured between the inner band and the outer band.

A catheter for introduction into a body cavity comprises a flexible outer tube with a handle member and proximal and distal ends and a flexible inner tube with a holder. The exterior surface of the outer tube has a first cross sectional shape along at least a portion of its length with the inferior surface having a second cross section shape along at feast a portion of its length. The inner tube has an exterior surface having a third cross section shape along at least a portion of its length. The third cross section shape has a radius less than said second cross section shape and is configured to prevent more than a predetermined rotation when received within in the second cross section shape of the outer tube. The holder has a holder stop proximate its distal face with the distance between the proximal face of the handle member and the stop being equal to the length of the membrane. This ensures that once the stop contacts the handle member, the membrane will be fully deployed.

A positioning device is provided for delivering or guiding a surgical device into a lumen of a body vessel to a position adjacent target tissue. The device includes a housing, an elongate sleeve, and a source of pressurized fluid. The sleeve has a first end coupled to a delivery side of the housing, a second end positioned on a return side of the housing, and an inverted distal portion positioned between the first and second ends. One second end of the sleeve can be furled about a support member supported on the housing. A distal portion of the sleeve defines a cavity that communicates with a pressure chamber within the housing. When pressurized fluid is directed into the pressure chamber, the pressurized fluid flows into the cavity of the distal portion of the sleeve to advance the sleeve away from the housing.

A medical device to protect a body opening, the medical device including a sleeve having a proximal end and a distal end a proximal ring attached to the proximal end of the sleeve, and a guard assembly located a distal end of the sleeve.

Mechanical atherectomy and/or thrombectomy devices configured to remove obstructions (e.g., plaque material) of different consistencies and/or sizes from blood vessels. The devices may include a tractor comprising a flexible tube of material that inverts as it rolls over itself while being drawn into the open distal end of a catheter in a conveyor-like motion. The flexible tube can include features that facilitate engagement with the obstruction, enhance smooth tractor motion and/or promote movement control of the device within the blood vessel.

Everting balloon systems and methods for using the same are disclosed herein. The systems can be configured to access and dilate body lumen and cavities. For example, the systems can be used to dilate the cervix and access the uterine cavity. The systems can also be used to occlude the cervix. The systems can also be used to occlude the urethra.

Inverting tube thrombectomy apparatus for removing clot that are configured to prevent compression of the apparatus that may separate the distal end of the apparatus from the clot and may make it difficult to advance the apparatus to engage with the clot, particularly in a tortious vessel. The apparatuses and methods of using them described herein may be adapted to prevent tension in the flexible tube that is rolling and inverting over the distal end of the inversion support catheter when capturing a clot. Also described herein are inverting tube thrombectomy apparatus that are configured to reload either automatically or manually within the vessel to capture additional clot material.

A trocar assembly includes a housing, an elongated cannula extending from the housing to an insertion tip, and skirt. The skirt has a leading end portion and a trailing end portion. The leading end portion is secured to the insertion tip. The skirt has an outer surface supporting an antimicrobial material and an inner surface supporting a medical adhesive material.