摘要:
An endoscopic optics fitted with lens elements and securing device to secure the element positions against shifting in case of being impacted. The securing device is a circumferentially expansible tube that jointly encloses, at least at one abutment surface, the adjoining ends of two lens elements while being of a lesser inside diameter than the outside diameter of the lens elements and being permanently prestressed against them.
摘要:
An endoscope has an insertion member that includes a flexible tube. The flexible tube has a spiral tube, which is formed by spirally winding a metallic belt, sheathed with a braid, and has the braid sheathed with a resin sheathing. The resin sheathing is made of an ester-series thermoplastic elastomer, an amide-series thermoplastic elastomer, or a blend of them. Therefore, the flexural rigidity of the flexible tube of the insertion member attained at a predetermined position after the flexible tube is loaded during high-temperature high-pressure steam sterilization is equal to or lower than that attained before the flexible tube is loaded. Consequently, the flexural rigidity of the flexible tube attained after sterilization with high-temperature high-pressure steam is equal to or lower than that attained before the sterilization. Thus, the inserting smoothness of the insertion member can be optimized.
摘要:
An endoscope has built-in components, which include a spiral tube, a braid, angulation wires, and angulation coils, passed through a sheathing of a flexible tube that is an integral part of a soft insertion member. Conditions are determined so that the sum total of strengths of forces the built-in components exert in correcting their extent of deformation that is caused by sterilization with high-temperature high-pressure steam will be larger than the strength of force the sheathing exerts in correcting its extent of deformation during the high-temperature high-pressure steam sterilization (which includes a high temperature load). Thus, the extent of deformation derived from sterilization with high-temperature high-pressure steam is suppressed.
摘要:
A thin-walled polymeric component that may have a selected complex shape, and a method of forming the component. The method includes heating a portion of a polymeric film to a selected malleable temperature, and forming a protrusion in the heated portion while it is malleable. The protrusion defines a protrusion having a first shape. The method also includes positioning a forming tool in the protrusion's interior and drawing a partial vacuum from within the protrusion so as to exert a force on the protrusion and move the protrusion's sidewalls inwardly into engagement with the forming tool. As the partial vacuum is drawn, the protrusion moves to a second shape that may be different than the first shape and that closely conforms to the selected shape of the forming tool. The protrusion is cooled below the malleable temperature and the forming tool is then removed. The distal portion of the protrusion having the selected shape forms the polymeric component, and that distal portion is separated from the remaining portion of the protrusion, thereby providing the thin-walled polymeric component.
摘要:
An endoscope comprising a control section and a shaft extending from the control section. The shaft has a frame with a one-piece tube along a majority of a length of the shaft. The tube comprises a superelastic alloy and slots into the tube along at least one-section of the tube. Superelastic properties of the superelastic alloy allow the tube to bend proximate the slots without substantial permanent deformation of the tube. The superelastic alloy provides the shaft with adequate stiffness and torque resistance to be inserted into a patient's body.
摘要:
A bending manipulation device for endoscope wherein a pair of control wires are taken up by a pulley provided in and given a rotary motion by the main control portion of the endoscope, and one of control wires extended out from the pulley corresponding to the turning operation thereof is taken up by the pulley while the other is paid out from the pulley, thereby enabling the bending manipulation to be carried out. The groove of the above pulley is formed in the shape of a spiral continuously extending in the peripheral direction of this pulley and is used in common by the above pair of control wires. One part from the one end of the groove and the other part from the other end of the groove are arranged side by side and in parallel with each other. Each of control wires is alternately taken up on the groove of the pulley corresponding to the turning direction of the pulley.
摘要:
The invention relates to an endoscope shaft comprising a hose body which forms a central working conduit and a number of functional conduits. According to the invention, the hose body is manufactured of an extruded synthetic material surrounded by a silicone clothing or cover which forms the outer layer of the endoscope shaft.
摘要:
A fully-swallowable endoscopic system includes a rod-shaped endoscope body which can be swallowed entirely by a patient to be examined so as to be placed in a body cavity, the rod-shaped endoscope body including two bendable portions respectively provided close to the opposite ends of the rod-shaped endoscope body and each being bendable along a curve of the body cavity, and an external device provided separately from the rod-shaped endoscope body having no mechanical connection with the rod-shaped endoscope body. The rod-shaped endoscope body is provided therein with at least one light emitter, at least one observing system, a transmitter for transmitting a radio wave which carries an image formed by the observing system, and a power supplying device. The external device includes a receiver for receiving the radio wave which carries the image.
摘要:
An endoscope apparatus and method of operating the same. The endoscope apparatus comprises an endoscope portion and a control and display unit. The endoscope portion preferably comprises: (i) a sensor disposed at a distal end of the endoscope portion and providing endoscope data; (ii) one or more electronically controlled actuators (e.g., electroactive polymer actuators) controlling the operation of the endoscope portion based on received control signals; (iii) a first wireless transceiver coupled to the sensor and the one or more electronically controlled actuators, transmitting received endoscope data from the sensor and forwarding received control signals to the one or more electronically controlled actuators; and (iv) a portable power source (e.g., a battery) coupled to the sensor, the first wireless transceiver, and the one or more electronically controller actuators. The control and display unit preferably comprises: (i) a second wireless transceiver coupled via a wireless link to the first transceiver in the endoscope portion and receiving endoscope data from the first transceiver and transmitting control signals to the first transceiver; (ii) a control portion coupled to the second wireless transceiver and sending control signals to the one or more actuators in the endoscope portion via the first and second wireless transceivers; and (iii) a display portion that displays information received from the sensor via the first and second wireless transceivers. Another aspect of the present invention is directed to a method for providing single-use endoscopes to one or more hospitals.
摘要:
The invention relates to an endoscope-type device, particularly an endoscope for emergency intubation, comprising a holding portion (7) and a shaft (1) which is configured to be flexible at least in partial areas, with at least two longitudinal bendable pulling and/or pushing elements acting on said shaft (1) in the axial direction at different distances from the proximal end, with said pulling and/or pushing elements extending as far as the proximal end and being lockably received in a fixing device, and with said endoscope-type device comprising an endoscope tip (50) whose movement is controllable via control means (54) and a control device (52) arranged in the proximal portion.