Abstract:
A body part temperature regulating apparatus is provided that regulates a temperature of a part of a human body or an animal body. The body part temperature regulating apparatus including a controller that receives a first input from a first temperature sensor detecting a temperature of a heat transfer fluid at a first location, a second input from a second temperature sensor detecting a temperature of the heat transfer fluid at a second location, and a third input from a flow sensor arranged to detect the flow rate of the heat transfer fluid. The controller determines the amount of heat transferred to the heat transfer fluid using the first, second and third inputs during a first predetermined period of time and outputs a control signal to regulate the amount of heat transferred to the heat transfer fluid based on the determined amount of heat transferred.
Abstract:
A pressure variable thermal adaptive microclimate surface is provided. The microclimate surface may be a pad, pillow, mattress or the like. The microclimate surface is especially suitable for providing optimal heating and/or cooling of a person. The heating or cooling is provided through heating or cooling delivery system located in the sculpted polyurethane foam microclimate surface. The microclimate surface has a plurality of independently moving pillars which is optimal in reducing pressure ulcers on the skin of a person caused by the person spending extended periods of time on a typical surface, such as a hospital mattress. The heating or cooling delivery system may be provided through three possible configurations.
Abstract:
A heat exchange assembly can be removably engaged between two cold plates of a heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad. The heat exchange assembly may have a serpentine, winding, tortuous, or sinuous configuration, or it may have one or more curves, turns and/or bends and/or can have a flattened transverse cross-section to facilitate heat exchange with the cold plates.
Abstract:
An intravascular temperature management catheter includes a shaft through which working fluid can circulate to and from a proximal location on the shaft. The catheter extends from a connector hub. At least one heat exchange member is supported by a distal part of the shaft or other part of the catheter to receive circulating working fluid from the proximal location. A temperature sensor is supported on the catheter for generating a temperature signal representative of blood temperature to a control system. The temperature sensor includes first and second conductive leads having respective first and second distal segments on or in the catheter shaft. The first and second distal segments are arranged to be in thermal contact with blood flowing past the catheter when the catheter is disposed in a blood vessel of a patient. Also, the temperature sensor includes a joining body connected to proximal segments of the first and second leads. The joining body may be supported in the hub or in another location proximal to the first and second conductive leads.
Abstract:
A controlled temperature therapy system has a pump, a reservoir, and a therapy component. The reservoir has an inlet in communication with the therapy component and an outlet in communication with the pump. The reservoir may also include a baffle adjacent the outlet. The inlet may be a moveable inlet, a nozzle or include a flow directing surface.
Abstract:
According to some embodiments, a system may treat blood outside the body of a patient. The system may include one or more pumps configured to draw blood from a patient into a fluid flow path at a rate, for example, of 5-7 liters per minute. The system may include one or more heat exchangers coupled to the fluid flow path and configured to heat the blood, for example, to a temperature above 42 degrees Celsius and below 43.2 degrees Celsius.
Abstract:
A peristaltic pump has an arcuate raceway (32, 130) with a partially concave inner surface (36, 136) extending through an arc of at least one hundred eighty degrees (180). The arc defines a midpoint (38/138), and a rotor (34/134) faces the inner surface of the raceway (32, 130) and is both rotatable relative to the raceway (32, 130) and translationally movable relative to the raceway (32, 130) between a pump position, wherein the rotor (34/134) is spaced from the midpoint (38/138) a first distance, and a tube load position, wherein the rotor (34/134) is spaced from the midpoint (38/138) a second distance greater than the first distance. A rotor motor (58) is coupled to the rotor (34/134) to rotate the rotor and rollers (46, 48) are arranged on the rotor to contact tubing disposed between the rotor (34/134) and the raceway (32, 130) when the rotor (34, 134) is in the pump position. A manual positioning mechanism (70) or a loading motor (140) can move the rotor (34 or 134) toward and away from the raceway (32, 130).
Abstract:
Disclosed is a thermoregulation system, including an output port (54), an input port (62), a thermoregulation fluid supply system, an output pump (52) for pumping thermoregulation fluid out through the output port, an input pump (64) for pumping thermoregulation fluid in through the input port, and a pressure control system. The pressure control system is for selectively operating a pressurising element of a personal thermoregulation pack to apply a pressure independently of operation of the input (64) and output (52) pumps.
Abstract:
An ultrasonic forceps comprises a housing, an acoustic assembly, and a tine. The housing joins the acoustic assembly and the tine to the forceps and permits the tine to pivot relative to the acoustic assembly. The acoustic assembly comprises a transducer, a waveguide, and ultrasonic blade, and a waveguide sheath. The transducer is configured to generate ultrasonic vibrations directing the ultrasonic vibrations to the waveguide. The waveguide communicates the ultrasonic vibrations distally to the ultrasonic blade. The ultrasonic blade is configured to vibrate in response to the ultrasonic vibrations generated by the transducer. When the tine is pivoted relative to the transducer, the tine is configured to move toward the ultrasonic blade. Tissue may be grasped between the tine and the ultrasonic blade. The tissue may be denatured when the ultrasonic vibrations generated by the transducer vibrate the ultrasonic blade, thus resulting in the tissue being cut and/or sealed.
Abstract:
One aspect of the invention provides a cooling device including a cooling unit and a control unit. The control unit is programmed to control operation of the cooling unit in order to cool one or more sebaceous glands within a local region for a period of time and to a temperature sufficient to disrupt function of the one or more sebaceous glands without permanently injuring epidermal tissue or cooling subcutaneous adipose tissue to 25° C. or below 25° C.