A surgical instrument is disclosed comprising a housing and a control circuit mounted to and/or embedded in the housing.

A method and system for preventing a collision between mechanical arms (21), and a medical robot, belonging to the field of medical robot technology. The method includes: arranging (S10) discrete points (m, n) at a mechanical arm (21); acquiring (S40) an interaction force (F.sub.m,n) corresponding to each discrete point (m, n) according to a calculated relative distance (L) between the discrete points (m, n) respectively on different mechanical arms (21), to obtain (S50) a resultant force of the interaction forces (F.sub.m,n) each of which corresponds to each discrete point (m, n), and then obtaining a Cartesian force (F.sub.d) corresponding to each mechanical arm (21), and making (S60) an operator perceive the Cartesian force (F.sub.d) in real time, thereby effectively reducing the risk of interference and collision between the mechanical arms (21).

A surgical instrument is disclosed. The surgical instrument includes an electric motor and a control circuit. The control circuit includes a plurality of logic gates and a monostable multivibrator. The monostable multivibrator is connected to a first one of the logic gates. The control circuit is configured to alter a rate of action of a function of the surgical instrument by controlling a speed of rotation of the electric motor based on a sensed parameter.

An ablation probe tip (100) having a shaft (102) with an insertion end (104). The shaft (102) includes a coaxial antenna (110). A center of ablation (124) is located within the shaft (102) near the insertion end (104). A heat transfer layer (130) surrounds the coaxial antenna (110). A thermal reservoir (134) at least partially surrounds the heat transfer layer (130). A method for using the ablation probe tip (100) includes predetermining an optimal temperature for the heat transfer layer (130), and the thermal reservoir (134) cooling the heat transfer layer (130) to no higher than the optimal temperature. The ablation probe tip (100) may be part of an ablation probe system (50) that includes an ablation source (60) that provides ablation means (62) to the ablation probe tip (100).

An apparatus for aiding the removal of cataracts in which an optical fiber delivers sufficient optical energy of the correct wavelength, pulse duration to achieve controlled non-thermal and non-acoustic dissolution of hard cataract tissue.

The invention generally relates to systems and methods for therapeutically modulating nerves in or associated with a nasal region of a patient for the treatment of a rhinosinusitis condition.

Apparatus and methods for determining positioning of a energy delivery element include deploying a energy delivery element at a treatment site proximal to a vessel wall; using a multi-region pressure sensing apparatus to sense pressures applied in a plurality of directions about the energy delivery element; and determining an orientation of the energy delivery element based on the pressures measured in the plurality of directions about the energy delivery element.

The invention generally relates to systems and methods for therapeutically modulating nerves in or associated with a nasal region of a patient for the treatment of a rhinosinusitis condition.

A surgical instrument is disclosed. The surgical instrument includes a shaft, a sensing array and a fluid detection circuit. The sensing array is positioned within the shaft. The fluid detection circuit is electrically coupled to the sensing array, and is configured to determine when a fluid originating from an environment external to the shaft is present within the shaft.

The invention generally relates to systems and methods for therapeutically modulating nerves in or associated with a nasal region of a patient for the treatment of a rhinosinusitis condition.