There is provided herein a catheter for resecting an undesired tissue from a body of a subject, the catheter comprising a tip section in a shape of a cylinder or a cylinder's sector having a central longitudinal axis, the tip section comprising: a central longitudinal lumen; a first set of optical fibers configured to transmit laser radiation outside a distal extremity of the tip section, in a direction parallel to the central longitudinal axis; a second set of optical fibers configured to transmit laser radiation, transversely to the central longitudinal axis; wherein the first set of optical fibers and the second set of optical fibers are selectively operable to resect and/or ablate the undesired tissue.

An endoscopic instrument is provided and includes a housing including an elongated shaft assembly extending distally therefrom. The elongated shaft assembly includes inner and outer shaft members. The inner and outer shaft members are removably coupled to the housing and the outer shaft member is movable with respect to the inner shaft member. An end effector is operably supported at the distal end of the outer shaft member and includes a pair of jaw members configured for treating tissue. A bushing operably couples to the inner and outer shaft members of the shaft assembly and selectively and releasably couples to the housing. The bushing includes one or more mechanical interfaces configured to engage one or more slots defined through the inner shaft member and one or more slots defined through the outer shaft member to release the inner and outer shaft members from the housing.

Treatment device having vibration source, transmission rod, and detachable tip is equipped with ultrasonic transducers. Ultrasonic vibrations transmitted along the transmission rod to the detachable tip cause a treatment end of the tip, such as a blade, to vibrate at ultrasonic frequencies to cut and/or seal tissues. The detachable tip is connected at a location other than the vibration node or the antinode position. The detachable tip endures increased stresses associated with this location by decreasing the mass and sectional area relative to the increasing stress levels. The detachable tip connects to the transmission rod using a transmission surface and a biasing member, such as a leaf spring, that engages a detent located in the housing at the distal end of the transmission rod. Biased contact between the transmission surface and contact surface transmits both ultrasonic vibrations and high-frequency currents to the treatment edge of the detachable tip.

The disclosure includes a vein ablation system, comprising a catheter having an elongated body. In some embodiments, the vein ablation system comprises an ablation device at a distal portion of the elongated body. According to some embodiments, the vein ablation system comprises a control device at a proximal portion of the elongated body. The control device may comprise an input mechanism configured to simultaneously control at least two of a longitudinal translation of the ablation device through a target vessel, a rotation of the ablation device about a central longitudinal axis, and an infusion of a chemical agent into the target vessel.

The inventive concept relates to an ultrasonic medical cartridge that may precisely move an ultrasonic wave generator by removing a backlash between a movable nut and a screw that move an ultrasonic wave generator, and an ultrasonic medical device including the same.

An elongate electrode is configured to flex and generate plasma to incise tissue. An electrical energy source operatively coupled to the electrode is configured to provide electrical energy to the electrode to generate the plasma. A tensioning element is operatively coupled to the elongate electrode. The tensioning element can be configured to provide tension to the elongate electrode to allow the elongate electrode to flex in response to the elongate electrode engaging the tissue and generating the plasma. The tensioning element operatively coupled to the flexible elongate electrode may allow for the use of a small diameter electrode, such as a 5 μm to 20 μm diameter electrode, which can allow narrow incisions to be formed with decreased tissue damage. In some embodiments, the tensioning of the electrode allows the electrode to more accurately incise tissue by decreasing variations in the position of the electrode along the incision path.

A catheter is provided comprising a flexible heat transfer element provided on an outer surface of the catheter. The catheter further comprises a conduit arranged to supply an inflation fluid for inflating the flexible heat transfer element so as to form an inflated balloon, and a plurality of cooling elements arranged to cool the inflation fluid for inflating the balloon. Each cooling element comprises a first tube provided inside a second tube, wherein the first tube is substantially parallel to the second tube. The second tube is configured to receive a flow of a coolant for cooling the cooling element from the first tube.

A medical device includes: a housing; a switch provided on the housing; and a converter provided in the housing. The switch is configured to allow switching between a plurality of states and is configured to output a first signal in response to one of the states to which the switching is performed. The converter is configured to convert the first signal into a second signal of a different system when the converter receives the output of the first signal, and is configured to output the second signal to an outside configured to detect the second signal.

Methods for at least partially eradicating a target tissue by apoptosis may include reducing the temperature of a device shaft on a tissue eradication device to a target temperature, vibrating the device shaft and inducing apoptosis in the target tissue by contacting the target tissue with the device shaft or injecting a cold fluid from the cannulated device shaft of the tissue eradication device into the target tissue. Tissue eradication systems are also disclosed.

A microwave ablation system includes an energy source adapted to generate microwave energy and a power splitting device having an input adapted to connect to the energy source and a plurality of outputs. The plurality of outputs are configured to be coupled to a corresponding plurality of energy delivery devices. The power splitting device is configured to selectively divide energy provided from the energy source between the plurality of energy devices.