Abstract: A surgical navigation method utilizing a computer system. The method includes the steps of: (a) fixing a camera relative to a surgical site on a patient such that the camera does not move relative to the surgical site; (b) restraining the body portion of the patient which includes the surgical site relative to an operating table supporting the patient, such that the body portion does not move relative to the operating table; and (c) detecting with the camera the position of a medical instrument having a tracker array.

Abstract: An apparatus includes a catheter shaft assembly and an end effector. The catheter shaft assembly includes an outer sheath with a distal end. The end effector is associated with a distal end of the catheter shaft assembly. The end effector includes a plurality of leaflets. The leaflets are configured to transition between a first configuration and a second configuration. The leaflets are configured to fit within the outer sheath in the first configuration. The leaflets are configured to expand outwardly away from the longitudinal axis in the second configuration in response to being exposed distally relative to the distal end of the outer sheath. Each leaflet includes a flexible body and a plurality of electrodes. Each flexible body defines a plurality of openings. The electrodes are positioned on the flexible body.

Abstract: An apparatus includes a catheter shaft assembly and an end effector. The end effector includes a plurality of strips and a plurality of electrodes. The strips are configured to fit within an outer sheath of the catheter shaft assembly in a first configuration. The strips are configured to expand outwardly away from a longitudinal axis defined by the catheter shaft assembly in a second configuration when exposed distally relative to the distal end of the outer sheath. The electrodes are positioned on at least some of the strips. The electrodes are positioned relative to each other such that groups of four of the electrodes define a substantially square configuration.

Abstract: An apparatus includes a catheter shaft assembly and an end effector. The catheter shaft assembly includes an outer sheath with a distal end. The end effector is associated with a distal end of the catheter shaft assembly. The end effector includes a plurality of leaflets. The leaflets are configured to transition between a first configuration and a second configuration. The leaflets are configured to fit within the outer sheath in the first configuration. The leaflets are configured to expand outwardly away from the longitudinal axis in the second configuration in response to being exposed distally relative to the distal end of the outer sheath. Each leaflet includes a flexible body and a plurality of electrodes. Each flexible body defines a plurality of openings. The electrodes are positioned on the flexible body.

Abstract: A main body member is supported by transverse supports on a pair of pontoons. The main body member supports an operator's seat, a cargo rack, a pedal drive propeller assembly, and a rudder. The main body member has longitudinal slots in its surfaces that are associated with longitudinal interior sockets for adjustable engagement with the seat, the cargo rack, a support extension for the pedal drive propeller assembly, and the transverse supports. By means of such adjustable engagement, attachable portions are capable of longitudinal adjustment for establishing the desired trim of the cycle on the water with the operator or operators supported on the seat. Also, the support extension for the pedal drive propeller assembly is capable of longitudinal adjustment to accommodate the stature of the operator or operators after the plane of buoyancy has been established. Furthermore, seat and propeller assemblies for one or two persons are capable of being substituted one for the other.

Abstract: A combination air conditioning accumulator and fuel cooler unit comprises an enclosed housing having fuel inlet and outlets, and refrigerant inlets and outlets. Liquid refrigerant entering the unit is evaporated by means of heat exchange with hotter fuel in the unit. Preferably, the housing is in the form of an elongated cylinder and the fuel flow path is coaxial with the housing longitudinal axis. The heat exchanger includes a substantially cylindrical wall within which the fuel flows, and an outer, finned portion in contact with the flow of refrigerant. A desiccant is provided between the refrigerant flow path and the housing, to serve both insulating and moisture-removing functions. A stand pipe is provided to prevent unevaporated freon from exiting and returning in liquid form to the air conditioning compressor. The housing includes end plug members in which the fuel and refrigerant inlets and outlets are formed, the housing being attached to the plug members by crimp connections.

Abstract: An electro-optical encoder having a head assembly adapted for movement relative to an encoder scale and including a single compact efficient reflective light source providing illumination of a plurality of reticles and associated scale portions.