An automated emergency pneumatic tourniquet system including multiple interchangeable tourniquet cuffs, each having an inflatable bladder and an indicator tag designating the type of cuff, preferred pressure of application, and other data. A detachable controller reads the indicator tag and inflates the bladder to a predetermined pressure, which can be modified once applied. The detachable controller may be used to inflate multiple cuffs individually and monitor the amount the pressure applied by the cuffs. It also allows for periodic reperfusion for reducing and/or preventing ischemia. The cuff is held in place on a limb using a manual tightening mechanism independent of the bladder and controller.

Medical systems and methods for making and using medical systems are disclosed. Example medical systems may include an atherectomy system configured to engage and remove plaque from walls in vessels of a vascular system. The atherectomy system may include a drive shaft, a rotational tip coupled to an end of the drive shaft, a drive mechanism coupled to the drive shaft to rotate the rotational tip, and control configurations to control settings of operational modules of the atherectomy system. The control configurations may be configured to change settings of multiple operational modules of the atherectomy system in response to a single actuation of an actuator to facilitate use of the atherectomy system in a vasculature of a patient.

A powered endoscopic surgical apparatus is provided and includes a handle including a housing, a power source supported in the housing; an endoscopic portion extending distally from the housing of the handle; an end effector assembly coupled to a distal end of the endoscopic portion, the end effector assembly including a pair of jaws configured to perform a surgical function; a driving member; a drive source including a motor powered by the power source and connected to the driving member; and a gear assembly engaged with the motor. The gear assembly including a gear rack provided on the driving member; and a main gear operatively connected with the gear rack, the motor spinning the main gear such that rotary motion of the main gear moves the driving member in an axial direction such that the driving member actuates the end effector to perform the surgical function.

A surgical instrument comprising a power source, a first voltage regulator, and a second voltage regulator are disclosed. The surgical instrument further comprises a power source configured to sequentially power the first voltage regulator and the second voltage regulator.

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Aspects of the present disclosure are presented for a surgical instrument having one or more sensors at or a near an end effector and configured to aide in the detection of tissues and other materials and structures at a surgical site. The detections may then be used to aide in the placement of the end effector and to confirm which objects to operate on, or alternatively, to avoid. Examples of sensors include laser sensors used to employ Doppler shift principles to detect movement of objects at the surgical site, such as blood cells; resistance sensors to detect the presence of metal; monochromatic light sources that allow for different levels of absorption from different types of substances present at the surgical site, and near infrared spectrometers with small form factors.

The present disclosure provides for specific shapes and combinations of the compression members amenable to the safest, yet most effective compression of the carotid and vertebral arteries aimed at prevention of embolic stroke. An associated method of achieving an optimal compression of said arteries for the purpose of stroke prevention is provided.

A method for assisting a surgical operator in performing a surgical procedure uses a surgical controlling system includes a controller having a processing means communicable with a controller's database, said controller configured to control the spatial position of a surgical tool. The controller's database is in communication with movement detection means. The controller's database is configured to store a predetermined set of rules according to which allowed and restricted movements of the surgical tool are determined, each detected movement by said movement detection means of said at least one surgical tool being determined as either an allowed movement or as a restricted movement according to said predetermined set of rules. The system automatically real-time analyzes and determines the location of each anatomical element in the surgical environment.

Various examples are directed to systems and methods for operating a surgical instrument comprising a firing member translatable proximally and distally along a longitudinal axis between a stroke begin position to a stroke end position distal of the stroke begin position; a knife coupled to the firing member; and a motor coupled to the firing member to translate the firing member between the stroke begin position and the stroke end position. A control circuit may receive a firing signal and begin a firing member stroke by providing an initial motor setting to the motor. The control circuit may maintain the initial motor setting for an open-loop portion of the firing member stroke. The control circuit may receive energy data describing energy provided to the motor during the open-loop portion of the firing member stroke and may select a firing control program based at least in part on the energy data.

An apparatus includes a body, a shaft extending distally from the body, a motor, a stapling assembly disposed at a distal end of the shaft, and a timer circuit operatively coupled to the motor and the firing actuator. The body includes a firing actuator and the motor is configured to activate in response to a firing actuation of the firing actuator. The motor is further configured to deactivate after a first predetermined time period subsequent to the firing actuation. The stapling assembly is configured to selectively move from an open position to a closed position to clamp tissue and is operable to drive a plurality of staples into the clamped tissue in response to activation of the motor. The timer circuit is configured to activate a timer in response to the firing actuation. The timer is configured to run for a second predetermined time period. The timer circuit is configured to ensure deactivation of the motor upon expiration of the second predetermined time period.