A power supply device in which a device shaft provided with a power receiver is inserted in a through-hole of a port site, which is capable of supplying electric power to the power receiver at a low cost and enabling fine operation of the device shaft. The power supply includes a port site; first terminals provided on an inner surface of the through-hole; wires that connect the first terminals and a power source; a device shaft that is insertable into the through-hole; a power receiver provided on the device shaft; second terminals provided on an outer surface of the device shaft; and wires that connect the power receiver and the second terminals. Electric power from the power supply can be supplied to the power receiver by inserting the device shaft into the through-hole to thereby bring the first terminals and the second terminals into contact with each other.

A surgical probe includes a connection hub, an antenna assembly, and an outer jacket. The antenna assembly is coupled to the connection hub, extends distally from the connection hub, and includes a radiating portion coupled thereto at the distal end thereof. The radiating portion is configured to deliver energy to tissue to treat tissue. The outer jacket is coupled to the connection hub, extends distally therefrom, and is disposed about the radiating portion. The outer jacket includes a distal end member configured to be spaced-apart from the radiating portion a target axial distance. One or more of the couplings between the antenna assembly and the connection hub, the radiating portion and the antenna assembly, and the outer jacket and the connection hub defines a flexible configuration permitting axial movement therebetween to maintain the target axial distance between the radiating portion and the distal end member.

A medical imaging system comprising: a microwave antenna array comprising a transmitting antenna and a plurality of receiving antennae, wherein the transmitting antenna is configured to transmit microwave signals so as to illuminate a body part of a patient and the receiving antennae are configured to receive the microwave signals following scattering within the body part; a processor configured to process the scattered microwave signals and generate an output indicative of the internal structure of the body part to identify a target within the body part; and an ablation probe comprising an ablation needle movable relative to the microwave antenna array; wherein the receiving antennae are further configured to receive microwave signals scattered or emitted by the ablation needle and the processor is further configured to monitor a position of the ablation needle and to guide the ablation needle to the identified target within the body part which it can be used to perform an ablation procedure.

A method of spectrometric analysis comprises obtaining one or more sample spectra for an aerosol, smoke or vapour sample. The one or more sample spectra are subjected to pre-processing and then multivariate and/or library based analysis so as to classify the aerosol, smoke or vapour sample. The results of the analysis are used for various surgical or non-surgical applications.

A system includes, first and second circuitries and one or more devices. The first circuitry is configured to generate a stress signal for reducing an impedance of tissue of an organ. The second circuitry is configured to generate an irreversible electroporation (IRE) signal for producing a lesion in the tissue. The one or more devices are configured to apply to the tissue, the stress signal at a first time interval, and the IRE signal at a second time interval, subsequent to the first time interval.

A system and associated method for altering or destroying tissues and anatomical or other structures in medical applications for the purpose of treating diseases or disorders. In one aspect, the system includes a device configured to deploy devices for altering the lobes of a prostate.

There is disclosed a method of treating affected external or surface tissue comprising the steps of providing a source of affected external or surface tissue; generating a source of microwave energy; transmitting said microwave energy into said affected external or surface tissues; exposing said affected external and surface tissues to said microwave energy to raise the local temperature to thereby ablate, remove, coagulate or otherwise alter said affected external and surface tissues. There is also disclosed an apparatus for the treatment of affected external and surface tissues comprising a microwave energy source generator, a means to transmit said microwave energy into said affected external or surface tissues, a means to control the exposure of said affected external and surface tissues to said microwave energy to raise the local temperature to thereby ablate, remove, coagulate or otherwise alter said affected external and surface tissues; and optionally a means to control the repetition of steps a) to d) multiple times until the ablation, removal, coagulation or otherwise alteration is complete, the period between each sequence of steps a) to d) being optionally cooled, and the location of said concentrated electric field being varied.

A forceps includes a drive assembly and an end effector assembly having first and second jaw members movable between a spaced-apart position, a first approximated position, and a second approximated position. The drive assembly includes a drive housing and a drive bar. The proximal end of the drive bar is coupled to the drive housing, while the distal end of the drive bar is coupled to at least one of the jaw members. The drive housing and the drive bar are selectively movable in conjunction with one another between a first position and a second position to move the jaw members between the spaced-apart position and the first approximated position. The drive assembly is selectively activatable to move the drive bar independent of the drive housing from the second position to a third position to move the jaw members from the first approximated position to the second approximated position.

A forceps includes a drive assembly and an end effector assembly having first and second jaw members movable between a spaced-apart position, a first approximated position, and a second approximated position. The drive assembly includes a drive housing and a drive bar. The proximal end of the drive bar is coupled to the drive housing, while the distal end of the drive bar is coupled to at least one of the jaw members. The drive housing and the drive bar are selectively movable in conjunction with one another between a first position and a second position to move the jaw members between the spaced-apart position and the first approximated position. The drive assembly is selectively activatable to move the drive bar independent of the drive housing from the second position to a third position to move the jaw members from the first approximated position to the second approximated position.

A microwave ablation probe is disclosed. The microwave ablation probe includes an applicator arranged to apply microwave radiation to heat surrounding tissue; a feeding cable arranged to supply electromagnetic energy to the applicator; an antenna portion of an inner conductor of the feeding cable, the antenna portion extending distally from a distal end of an outer conductor of the feeding cable; and an overlapping portion of the inner conductor at least partly overlapping the antenna portion along the length of the antenna portion of the inner conductor and extending along a helical path around the antenna portion of the inner conductor.