An ultrasonic surgical instrument includes an ultrasonic waveguide defining a blade at a distal end portion thereof. The ultrasonic waveguide is configured to transmit ultrasonic energy therealong to the blade. The blade defines a plurality of surfaces. At least one lumen is defined at least partially through the blade. The at least one lumen establishes a flow path through the blade extending from a first open end on one surface of the plurality of surfaces to a second open end on a different surface of the plurality of surfaces. The at least one lumen is configured to urge fluid through the blade along the flow path from the one surface to the different surface.

A jaw member for use with a surgical instrument includes a support base, a jaw liner, and an elongated plate. The support base defines a cavity therein configured for receipt of the jaw liner. The elongated plate is configured to be seated in the cavity of the support base adjacent the jaw liner to secure the jaw liner relative to the support base.

An ultrasonic surgical instrument includes an ultrasonic waveguide defining a blade at a distal end portion thereof. The ultrasonic waveguide is configured to transmit ultrasonic energy therealong to the blade. The blade defines a plurality of surfaces. At least one lumen is defined at least partially through the blade. The at least one lumen establishes a flow path through the blade extending from a first open end on one surface of the plurality of surfaces to a second open end on a different surface of the plurality of surfaces. The at least one lumen is configured to urge fluid through the blade along the flow path from the one surface to the different surface.

The present disclosure provides a tissue imaging method, including: inserting an electronic probe into a lesion area of a patient and ablating tissue of the lesion area; capturing a first image including the lesion area by using an imaging apparatus; vibrating the electronic probe to generate displacement of at least a portion of the tissue of the lesion area, and capturing a second image including the lesion area by using the imaging apparatus; generating a correlation image according to a correlation between the first image and the second image; and computing an ablation boundary according to the correlation image.

The present invention provides improved methods and apparatus for skin treatment and tissue remodeling. The apparatus includes an array of needles that penetrate the skin and serve as electrodes to deliver radio frequency current or other electrical or optical energy into the tissue being treated, causing thermal damage in controlled patterns. The damaged regions promote beneficial results such as uniform skin tightening by stimulation of wound healing and collagen growth.

An energy depositing therapy system (10), comprising: an energy depositing unit (12) provided for locally depositing energy into a therapy zone (56) of a subject of interest (28) for therapy purposes; a transducer unit (32) that is provided for applying mechanical oscillations to at least a portion of the subject of interest (28); a magnetic resonance imaging system (14) provided for acquiring magnetic resonance imaging data from at least the portion of a subject of interest (28), comprising an image processing unit (24) configured to image the mechanical oscillations; a control unit (40) that is connectable to the energy depositing unit (12), the transducer unit (32) and a magnetic resonance scanner (16) of the magnetic resonance imaging system (14), wherein the control unit (40) is configured to control the depositing of energy in dependence of the processed magnetic resonance imaging data of the portion of the subject of interest (28); a method of controlling an energy depositing therapy system (10) by a magnetic resonance rheology system; and an application software module (50) provided to carry out one of the disclosed methods or combinations thereof.

A first subassembly includes a body and an ultrasonic blade. A second subassembly is configured to removably couple with the first subassembly and includes a first clamp arm and a first clamp arm actuator. The first clamp arm is configured to be located on a first side of the longitudinal axis of the body, and the first clamp arm actuator is configured to be located on a second side of the longitudinal axis, when the second subassembly is coupled with the first subassembly. The third subassembly is similar to the second subassembly except that the second clamp arm of the third subassembly is configured to be located on the second side of the longitudinal axis of the body when the third subassembly is coupled with the first subassembly.

A surgical instrument includes a rotatable electrical coupling assembly having a first part and a second part that electrically couple and rotate relative to each other. The second part is carried by and rotates with a tube collar coupled to a transducer. A portion of the transducer is inserted through an aperture of the second part, but does not contact the second part. The first part of the assembly may electrically couple to the second part via pogo pins, brush contacts, or ball bearings. Alternatively, the first part may comprise conductive channels formed in the casing. The second part may comprise a rotatable drum with a conductive trace. In some versions, one or more components may comprise MID components. In another version, the rotatable electrical coupling assembly comprises a rotatable PC board and brush contact. Further still, a circuit board may be provided with the transducer inside a transducer casing.

A surgical instrument operable to sever tissue includes a body assembly and a selectively coupleable end effector assembly. The end effector assembly may include a transmission assembly, an end effector, and a rotational knob operable to rotate the transmission assembly and the end effector. The body assembly includes a trigger and a casing having a distal aperture configured to receive a portion of the end effector assembly. First and second coupling mechanism portions cooperatively couple the end effector assembly to the body assembly for use. The coupling may mechanically and/or electrically couple the end effector assembly to the body assembly via various coupling mechanisms. For instance, a threaded slip nut may couple to threads within the body assembly. In one configuration, the end effector assembly may have locking tabs that rotate into rotational recesses in the body assembly. The locking tabs may include electrical contacts and/or optically perceivable indicators.

A lithotripsy or other medical laser treatment system can include a lateral actuator to laterally displace a distal portion of a laser fiber, such as can be scanned or otherwise controlled to generate a spatial or spatiotemporal sub-targeting pattern without requiring laterally moving an endoscope carrying the laser fiber in a longitudinal passage such as a working channel. A targeted stone can be selectively weakened along the pattern, such as using lower energy pulses, before being fragmented, such as by a higher energy shock pulse.