A heat sink includes first and second elongated heat sink bodies. The first and second elongated heat sink bodies are each formed from a respective electrically and thermally conductive material and also each extend from an LED coupling end of the heat sink to a lead end of the heat sink. An electrical insulator material connects the first and second elongated heat sink bodies together so as to bodies are electrically isolated from each other. Each elongated heat sink body also includes a respective LED coupling surface at the LED coupling end of the heat sink and a respective lead connecting surface located on the respective body at a location spaced apart from the LED coupling end of the heat sink.

An endoscope is provided and includes a flexible insertion tube; a distal end assembly provided at an end of the insertion tube; and a cooling medium tube provided in the inside of the insertion tube, and connected to the distal end assembly. A cooling medium for cooling the distal end assembly is introduced through one of the insertion tube and the cooling medium tube, and discharged through the other of the insertion tube and the cooling medium tube. Since the endoscope is configured such that the cooling medium directly contacts with a heating element or a conductor through which the heat of the heating element is conducted, the cooling effect of the front end portion of the endoscope is improved.

An apparatus for heat dissipation is provided comprising a heat source, a heat sink and a heat conducting element, wherein the heat conducting element conducts heat energy from the heat source to the heat sink along a heat conducting path, and wherein the heat conducting element is arranged in such a way on the heat source and the heat sink and is configured to physically change in such a way with increasing temperature of the heat conducting element that a) a first cross-sectional area between the heat source and the heat conducting element and/or a second cross-sectional area between the heat conducting element of the heat sink increases, and/or b) a length of the heat conducting path shortens. Further, a video endoscope having such an apparatus and a use of such an apparatus are disclosed.

An endoscope includes: a first lens located at a distal-most position, a part of the first lens being exposed outside; a movable lens barrel configured to be able to move, and configured to hold a movable lens disposed on a proximal end side with respect to the first lens; an actuator unit including a coil that drives the movable lens barrel and generates heat by receiving a supply of electric power; and a control section that outputs first electric power to the coil when holding the movable lens barrel at a predetermined position, and outputs second electric power larger than the first electric power to the coil when conducting heat generated from the coil to the first lens at the predetermined position.

An endoscopy device is configured with a flexible cannula or tube for nasal insertion and has multiple parallel and adjacent lumens that provide sub-chambers configured to provide means to diagnose and treat Barrett's esophagus, such as by spray cryo-therapy with no further insertion of tubes. The lumens are configured to impart a small diameter with sufficient flexibility for nasal insertion into a patient's esophagus and accommodate a means any treatment modality. In the case of cryo-therapy, a lumen provides gas pressure relief, and is along the tube, with separate lumens for the delivery of a liquid freezing agent and an imaging means, which includes a source of illumination. Outer lumens may support guide wires used to steer the tube tip and aim the camera to determine the where to immobilize tip before the start of the treatment and/or to correct strictures formed in prior procedures.

The present disclosure relates to vision preservation systems for medical devices, such as cryospray devices for use with endoscopes. Exemplary embodiments provide a distal attachment in the form of a shroud or cap that mounts to the end of a flexible endoscope. A purging fluid supply mechanism is provided along the length of the endoscope, providing a channel for purging fluid, such as gas, to communicate between the endoscope tip and an external gas supply. The cap or shroud assembly incorporates a lens clearing flow field adjustment mechanism, such as nozzles, designed to direct warm (room temperature or higher) purging fluid across a lens at the scope tip. Another flow deflection mechanism, such as a guide or nozzle, may be included with the cap to direct purging fluid at an angle away from the lens. Gas, as an example, directed across and toward the lens purges moisture to avoid condensation on the lens and shears debris and bodily fluids away from the field of view. Gas directed or deflected by a guide away from the lens serves the purpose of keeping incoming particles and fluid droplets (e.g. spatter) from impacting on the lens cover. The cap and shroud are designed to avoid entraining moist air from the body cavity or lumen being treated.

An endoscope system includes an endoscope, a video processor, a power source unit, and a parameter control device. The endoscope includes an image pickup unit and an illumination unit. The power source unit supplies electric power to the image pickup unit and the illumination unit. The video processor includes an image processing unit configured to generate an endoscope image. The parameter control device includes a data collection unit, a determination unit, and a parameter determination unit. When the data collection unit acquires one or more pieces of start information during execution of electric power consumption reducing processing, the determination unit determines to stop the electric power consumption reducing processing and execute high image quality achieving processing.

A video endoscope including: an elongated shaft having an inner shaft tube and an outer shaft tube; and an electrical connecting element extending in a longitudinal direction of the shaft between the inner shaft tube and the outer shaft tube. Wherein the electrical connecting element is configured as a flexible printed circuit board with at least one conducting path which is routed substantially parallel to a longitudinal axis of the shaft, and the electrical connecting element is routed at an angle with respect to the longitudinal axis of the shaft at at least one location of the shaft.

A laparoscope/endoscope warmer includes a rechargeable heater with an inexpensive, disposable casing so that the expensive portions of the system can be reused. An elongated heater has an outer wall, a closed end and an open end into a cavity having an inner wall. A heating element such as a heating coil is disposed between the inner and outer walls of the heater. A rechargeable battery within the heater powers the heating element. The heater fits into a charging base operative to recharge the rechargeable battery through cooperating electrical contacts or an inductive coupling. The sterile casing includes an inner sleeve that fits into the cavity of the heater unit, providing a receptacle to receive and warm the rod of an endoscope or laparoscope.

A system for simultaneously heating multiple elongated surgical viewing instruments comprises a heater with a slot and an insert received by the slot. The insert has multiple elongate cavities, each configured to receive the tip of a viewing instrument. A cover, configured to cover the heater with the insert in the slot thereof, provides a plurality of openings aligned with the cavities of the insert. In the preferred embodiment, the heater is reusable and the insert and cover are disposable. The insert and cover may be integrally joined into a single unit. The system may further include a stand upon which the heater is supported, one or more cavities to receive cleaning swabs to be heated, and/or a pad to heat a cleaning wipe or other article.