39results about How to "The instrument is easy to operate" patented technology

An instrument for surgical suturing includes a shaft, and a needle disposed slidably for longitudinal travel with respect to the shaft. A prong formed on one end of the shaft projects across a longitudinal axis of the needle and has an opening formed through the prong that provides a clearance through which a tip portion of the needle passes when it is advanced. Slots formed on a surface of the prong facing the shaft releasably hold suture across the opening. The suture is held in the slots by passing the suture strands separately back around the sides of the prong, then together up through a channel formed on the prong above the slots, and securing the strands in a pinch slot formed in a handle of the instrument. Advancing the needle through the clearance allows a hook formed on the tip of the needle to capture the suture. Once withdrawn, the needle draws the suture back through tissue pierced during advancement. The suture is released from the slots and drawn back through the tissue for further knot tying and suturing to effect the tissue repairs.

Disclosed is an bioelectrical impedance measuring apparatus which is simplified in structure and which is easy to use. A measuring apparatus comprising a personal data input unit which is used in inputting personal data and a plurality of electrodes which are used in measuring bioelectrical impedance is improved according to the present invention in that it comprises: a memory in which the personal data are stored via said personal data input unit; and a control device which carries out a required control by using at least one selected electrode to store the personal data in said memory or to retrieve the personal data from said memory.

The surgical instrument includes a shaft having a distal end portion and a proximal end portion; an operative device is disposed on the distal end portion. A hand mechanism has a first handle and a second handle and is disposed on the proximal end portion. Movement of the second handle relative to the first handle actuates the operative device. A ratchet, attached to the second handle, locks the operative device and moves with the second handle. The ratchet is pivotally attached to the second handle and pivots between a locked position and an unlocked position. A biasing device biases the ratchet toward the locked position and a release mechanism for moves the ratchet from the locked position. At least one of the release mechanism and the ratchet has a feature permitting relative movement between the release mechanism and the ratchet.

A medical apparatus, includes a medical instrument with an acquisition unit for a magnetic resonance signal, the acquisition unit exhibiting a non-constant sensitivity profile in the azimuthal direction relative to an axis of the medical instrument. An azimuthal orientation of the medical apparatus is determined by an evaluation unit from magnetic resonance signals received by the acquisition unit.

A suction retraction surgical instrument retracts tissue and removes smoke, fluid, debris and other matter from a surgical site. The instrument includes an elongate body having a proximal section, a distal section and a central section. A vacuum or suction channel is defined within the elongate body. The instrument includes a retractor at the distal section of the elongate body. The retractor has an inner surface and an outer surface defining a suction port. The suction port is adapted to remove smoke, blood and other matter from the surgical site. The instrument includes a suction connector at the proximal section of the elongate body. The suction connector is in communication with the vacuum channel. The suction connector is adapted to aid in communication with a vacuum system for removal of smoke, fluid and other matter from the surgical site.

The invention relates to a method for accurately determining zirconium and hafnium components in a zirconium-hafnium mixture by using an extraction spectrophotometric method. In the presence of a large amount of zirconium, the zirconium and hafnium are extracted and separated by using a methylisobutylketone-thiocyanic acid (MIBK-HSCN) system solvent, and the zirconium and hafnium components are accurately determined by combining an arsenazo III spectrophotometry. By the method, the zirconium and hafnium components in tested objects of zirconium oxychloride, baddeleyite, zircon sand, zirconium oxide, ferrozirconium and the like can be accurately determined; and the method has the advantages of high sensitivity, good selectivity, simplicity, convenience and quickness for instrument operation, accurate determination result and the like, and the test cost and the requirement on instrument equipment can be effectively reduced.

An apparatus for generating a correcting cut surface in the cornea including a laser unit, which can focus and move pulsed laser radiation; a first contact element; and a control unit, controlling the laser unit which has a standard setting which, when a standard curvature is imposed upon corneal surface by the first contact element, would lead to a standard cut surface. The standard cut surface has a known curvature with respect to a reference surface. The curvature, with respect to the reference surface of the correcting cut surface to be generated deviates from the known curvature of the standard cut surface. The apparatus includes a second contact element adapted to generate the correcting cut surface, which cornea imposes an actual curvature deviating from the standard curvature, thus generating a cut surface using the standard setting results in the correcting cut surface to be generated.

A hand-operated cutting apparatus including a main frame at least including a front wall, a base wall and two side walls, in which an opening is formed in the front wall, and a rack formed on an upper surface of the base wall along the length of the main frame, a bracket disposed between the side walls of the main frame and movable along the length of the main frame, a cutter provided in the front of the main frame and including a cutting blade located within the opening, and a squeezer attached to the front surface of the bracket facing to the cutter. The bracket includes a base, a handle pivotally provided on the base and a pusher arm pivotally provided on the handle, in which a lower end of the pusher arm is located between two teeth of the rack, and the pivot axis of the pusher arm on the handle departs from the pivot axis of the handle on the base towards the rear of the main frame.

The invention discloses a 3 nanometer-20 micrometer aerosol particle size distribution measuring apparatus, and belongs to the technical field of environment aerosol measurement. The measuring apparatus integrates an aerodynamic particulate matter size spectrometer, a nano-particulate matter differential electromobility analyzer, a nano-particulate matter condensation nucleus particle counter, a sub-micron particulate matter differential electromobility analyzer and a sub-micron particulate matter condensation nucleus particle counter, and is characterized in that a voltage / flow control box is used to provide hierarchical voltages and sheath gas to the two particulate matter analyzers; a data acquisition card is used to synchronously acquire impulse signals of the particulate matter size spectrometer and the two particle counters; and a measurement control system is used to control the voltage output and sheath gas flow of the voltage / flow control box, process and analyze the impulse signals input to the data acquisition card, and output a two-dimensional diagram showing a 3 nanometer-20 micrometer particle size distribution spectrum and a three-dimensional diagram containing a time series. The measuring apparatus disclosed by the invention has the beneficial effects that the measurement is precise, the apparatus operation is simple, and the apparatus can provide technical support for atmosphere combined pollution and nanometer scientific research.

An endoscopic treatment instrument including a dual tube inserted into a channel of an endoscope, the dual tube including an outer tube and an inner tube being inserted into the outer tube and moving forward and backward relative to the outer tube. The outer tube and the inner tube are made of a plastic material composed of a mixture of an organic polymer and a silicone compound, the organic polymer is polypropylene and the silicone compound is polydimethylsiloxane, and the polypropylene is 90 to 99.5 wt % and the polydimethylsiloxane is 0.5 to 10 wt %.

An intelligent glue-fixing instrument for multi-type gyroscopes, which includes: an iron stand, including a base and a pillar arranged on the base; The iron clamp is connected to the screw at the other end of the cross clamp to adjust the horizontal front and rear position of the other end of the iron clamp by rotating around the cross clamp; the screw rod is connected to the other end of the iron clamp; the disc is set on the screw rod and can be moved along the The screw moves up and down; the laser pointer is set on the disc; the electric turntable is set on the base of the iron stand for placing different types of tops. Its advantages are: by placing the gyro on the electric turntable and fixing the laser pointer, the purpose of automatically curing different types of gyro adhesives is realized.

The invention relates to a vision protecting instrument with interpupillary distance adjustment and double optical path focusing, belonging to the technical field of medical appliances. The invention has the technical scheme that the vision protecting instrument with interpupillary distance adjustment and double optical path focusing comprises a base, a stabilized voltage supply, a box body, a double optical path focusing optical system, an interpupillary distance adjusting mechanism, a support plate, an electric control panel, a film operation panel and the like, wherein the box body is installed on the base, the stabilized voltage supply is fixed on the box body, the box body and the support plate are integrated; two fixing blocks in the interpupillary distance adjusting mechanism are fixedly connected below the support plate; under the interpupillary distance adjusting mechanism, an interpupillary distance adjusting block is fixedly connected with two lens barrels in the double optical path focusing optical system, so that the optical axes of the lens barrels are parallel to the interpupillary distance adjusting block; the electric control panel is installed on the inner wall of the top cover of the box body; and the film operation panel is installed on the upper surface of the top cover of the box body. The vision protecting instrument integrates the interpupillary distance adjusting mechanism and the double optical path focusing mechanism and has a simple structure.