8results about How to "Lower device cost" patented technology

The invention provides a micro-integrated temperature control heating semiconductor laser diode and a manufacturing method thereof, which are used for solving the technical problems of lower temperature control precision, more combined devices, higher difficulty of a packaging process and higher cost in the conventional packaged laser diode. The invention provides a micro-integrated temperature-control heating semiconductor laser diode which can accurately control the temperature, is low in cost and can simplify the packaging process, the micro-integrated temperature-control heating semiconductor laser diode comprises a laser chip, the laser chip sequentially comprises a substrate, a first buffer layer, an active layer, a second buffer layer and a passivation layer from bottom to top, and the back surface of the substrate is provided with a negative electrode; two grooves are etched on the passivation layer, and a ridge strip between the two grooves forms a waveguide; and a heating resistor and a thermistor are respectively arranged on two sides of the two grooves. A heating function and a temperature measuring function are integrated on the semiconductor laser by adopting a micro-integration technology, so that the number of used devices is effectively reduced, the packaging volume is reduced, the packaging procedure is simplified, and the packaging cost of the devices is reduced.

The present disclosure provides a technique for determining, with high accuracy, an abnormality that occurs when a plurality of types of liquids are simultaneously dispensed. A dispensing device of the present disclosure includes: a dispensing nozzle; a pressure source; a sensor configured to detect a pressure inside the dispensing nozzle; a processor configured to control the dispensing nozzle and the pressure source, to perform aspiration of a second liquid different from a first liquid in a state where the first liquid is aspirated and held, and to determine an abnormality during the aspiration of the second liquid; and a storage device configured to store reference pressure data and predetermined threshold. A plurality of pieces of at least one of the reference pressure data and the predetermined threshold are acquired in advance and stored in the storage device so as to respectively correspond to different physical property values of the first liquid. The processor acquires pressure data to be a target of abnormality determination, and selects, according to the physical property values of the first liquid, one of a plurality of pieces of the reference pressure data if the plurality of pieces of the reference pressure data are stored, and one of a plurality of pieces of the predetermined threshold if the plurality of pieces of the predetermined threshold are stored.

This invention belongs to the field of medical device technology, and particularly relates to a puncture device with integrated internal and external air conduction. Addressing the problem that existing puncture devices cannot prevent the outward escape of aerosols generated by chemotherapy drugs applied to the surgical site, this invention provides a puncture device with integrated internal and external air conduction, including a puncture device cannula assembly with an internal instrument channel, and a balloon assembly connected to the puncture device cannula assembly; it also includes an exhaust assembly disposed outside the puncture device cannula assembly, one end of which is connected to an external vacuum source, and the other end of which is connected to the instrument channel. A gas-conducting fixator is also provided outside the puncture device cannula assembly, with its bottom communicating with the patient's pneumoperitoneum, and the gas-conducting fixator is connected to the exhaust assembly. This invention achieves dual aerosol absorption through a dual negative pressure suction system, greatly reducing the risk of medical personnel inhaling toxic aerosols during minimally invasive surgery requiring chemotherapy.

The invention discloses an anti-jitter compensation method based on induced electromotive force, a voice coil motor and electronic equipment. The anti-jitter compensation method comprises the following steps: detecting the induced electromotive force of a magnetic induction coil of the voice coil motor; the moving distance of the lens is calculated according to the induced electromotive force of the magnetic induction coil; generating a corresponding compensation signal according to the movement distance of the lens and an anti-jitter distance obtained in advance; the compensation signal is used for compensating magnetic force generated by a magnetic induction coil of the voice coil motor, so that the moving distance of the lens reaches or approaches the anti-shaking distance. According to the voice coil motor, position detection devices such as a hall sensor and the like can be omitted in the voice coil motor, the first MCU arranged in the voice coil motor can be omitted, related functions are completed directly through the second MCU of the electronic equipment, the production process of the voice coil motor is simplified, and the production cost of the voice coil motor is reduced.

The present application belongs to the field of bridge crane replacement, and mainly relates to a large-scale bridge crane quick replacement method under restricted space conditions, comprising the following steps: installing a support beam below the crane, installing a lifting beam at a certain height above the crane, installing multiple towers on different module vehicles, moving the module vehicles to the two sides of the old crane, and supporting under the lifting beam; placing a lifting device above the lifting beam and connecting with the bottom support beam, lifting the support beam and the old crane to a certain height; after rotating the old crane by a certain angle in place by the module vehicle, the lifting device lowers the old crane, and the disassembly is completed; repeating the above steps to install a new crane. In the restricted working space, the module vehicle and the tower combination are used to replace the bridge crane through the in-place rotation mode, the occupied space is small, the modular disassembly is used, the construction time is effectively shortened, the efficiency is improved, and the method is suitable for construction of various sizes and scenes.

The utility model belongs to the field of medical instruments, and particularly relates to an assembled artificial knee joint tibia support assembly which comprises a tibia support body and at least one tibia support extension rod. The tibia support extension rod is connected with the tibia support body through a thread structure or a tenon-and-mortise structure; when more than two tibia support extension rods are arranged, the adjacent tibia support extension rods are connected through a thread structure or a tenon-and-mortise structure; the length of the tibia support extension rod is not smaller than 2 cm and smaller than 30 cm. Compared with the prior art, the utility model solves the problems that the tibia support extension rod in the prior art is a standard part, the length, the angle, the shape and the like cannot be adjusted according to the needs of a patient, and the bone needs to be cut to adapt to the tibia support extension rod; according to the scheme, the tibia support extension rod can be individually adjusted according to the condition of a patient through an assembled structure, and the condition that a cut bone is matched with the tibia support extension rod can be avoided to a great extent.

The utility model provides a kind of infusion blood sampling device.In the utility model, after the central venous blood of critical patient is extracted using blood collector, the mixture in syringe is injected into the central vein of critical patient via central venous catheter, so that iatrogenic blood loss can be avoided.After blood sampling, new infusion bottle, new infusion tube and new pump do not need to be used, drug and instrument waste are avoided, and drug and instrument costs are reduced.When the infusion blood sampling device leaves factory, the nipple in the needle cylinder in the syringe is integrally formed with the first catheter and cannot be detached, so that the syringe is not pulled off from the first catheter, and the nipple in the needle cylinder in the syringe is always isolated from the outside and not exposed to the outside, so that external pollutants can be prevented from being injected into the central vein of critical patient, and health and safety threat to critical patient can be avoided.

The utility model relates to the technical field of composite texturing yarn processing equipment, in particular to a twisting device for composite texturing yarn processing, which comprises a support, a twisting workpiece is mounted in the center of the top of the support, a take-up rod is mounted on the side wall of the support, a driving motor is fixedly mounted on the side wall of the support, and a rotating rod is mounted at the output end of the driving motor. The rotating rod penetrates through the side wall of the support, a rotating disc is installed on the side wall of the rotating rod, and a plurality of wire clamping assemblies are installed on the surface of the side wall of the rotating disc and evenly distributed on the surface of the side wall of the rotating disc in an annular array mode. The twisting device has the advantages that the multiple clamping assemblies are installed on the rotary disc, the multiple silk threads can be conveniently clamped, meanwhile, the silk threads can be rapidly replaced, the twisting device is suitable for machining the composite draw textured yarns made of multiple different raw materials, and the instrument cost needed by the composite draw textured yarns of different types is reduced.