33results about How to "Restore patency" patented technology

Disclosed herein are proximally-flaring stents and balloon catheter systems and methods for using the same to restore patency to a side branch and its ostium at a vessel bifurcation, where the side branch can only be approached from the direction of the main artery. The system and methods include a proximally-flaring stent (10) and one or more balloon catheters (250, 400) with inflatable balloons that are able to push a flanged proximal portion (40) of the proximally-flaring stent entirely against the artery walls of the main artery of the side branch so that blood flow is not occluded.

Methods and system for treating obstructive sleep apnea and snoring are disclosed. The system generally comprises a mask for delivering pressurized air to patient's breathing orifice, a sensing mechanism for continuously assessing the state of patient's breathing and a pressure generator for generating the pressurized air in the mask. The pressurized air is applied to the breathing orifice only during selected portions of the breathing cycle, when such pressure might be required to prevent occlusion of the airway or to restore patency of the airway after such occlusion occurs.

The invention discloses an expressway command and dispatch system and method based on road network big data. The system comprises a monitoring module which is used for monitoring the real-time road condition information and vehicle dynamic information of an expressway, a data collection module which is used for collecting real-time accident information on the expressway, a commanding and dispatching module which is used for carrying out analysis processing, emergency plan making and commanding and dispatching on accidents on the expressway, a cloud data center which is used for sharing and transmitting data, and a data interaction module which is used for carrying out data interaction and sharing with external users. The system overcomes the problems that in the prior art, due to the factthat the speed for processing accidents on the expressway is insufficient, the problem of road condition congestion cannot be solved in time, normal passing is seriously affected, and secondary accident danger is likely to be caused.

The invention discloses a reducible uterine tube umbrella mouth implanted type combined birth control device and belongs to the technical field of uterine tube blockage. The device has a key technical point that the device mainly comprises a sack body, wherein one side of the sack body is communicated with a water injection valve through a pipeline and the other side of the sack body is connected with a solid metal needle through a traction fixing thread. The device is simple in structure, convenient in installation and use, ideal in birth control effect and good in reducibility, and is used for reducible birth control of the female.

The invention discloses a medicament for treating extrauterine pregnancy, belonging to a traditional Chinese medicine preparation, in particular relating to a traditional Chinese medicine medicament used for treating extrauterine pregnancy. The medicament for treating extrauterine pregnancy is characterized by being prepared into the traditional Chinese medicine preparation from the following raw materials in parts by weight: 10-30 parts of radix trichosanthis, 20-30 parts of spreading hedyotis herb, 10-30 parts of salvia miltiorrhiza, 9-15 parts of peach kernels, 9-15 parts of safflowers, 10-20 parts of rhizoma sparganii, 10-20 parts of rhizoma zedoariae, 10-20 parts of radix cyathulae, 9-15 parts of radix linderae, 2-5 parts of centipede, 9-15 parts of leech, 9-15 parts of Chinese pangolin and 9-15 parts of radix pseudo-ginseng. The medicament has the pharmacological features of being capable of killing embryo, lowering HCG (Human Chorionic Gonadotropin), promoting Pelvic blood circulation and metabolism and absorption of pathological products, and further achieving the purpose of diminishing bumps and recovering the smoothness of fallopian tubes. Compared with the chemotherapy control group of western medicine, the medicament has the advantages of fast effect, short curative course, no side effect of chemotherapeutics, benefit for pregnancy of a patient after recovery, low extrauterine pregnancy recurrence rate and the like in terms of curative effects.

The present invention relates to methods, devices and systems for performing the removal of thrombus from a vessel lumen. More particularly the present invention relates to a thrombectomy system that includes an elongate catheter and a disposable aspiration pump and methods of performing medical procedures to remove clots, thrombus and emboli to re-establish the normal intravascular flow of blood.

The invention discloses a medicinal composition for treating ectopic pregnancy and a preparation method thereof. The medicinal composition is prepared from the following main medicinal materials and auxiliaries in parts by weight: 50-80 parts of radices trichosanthis, 100-160 parts of rhizoma atractylodis macrocephalae, 50-80 parts of centipede, 60-96 parts of scorpion, 60-96 parts of ground beetle, 60-96 parts of madder, 60-96 parts of rhizoma sparganii, 40-64 parts of curcuma zedoary, 40-64 parts of astragalus membranaceus, 40-64 parts of lithospermum, 50-80 parts of immature bitter orange and 50-80 parts of liquorice. The medicament for treating ectopic pregnancy, prepared by the extraction method is simple in extraction process steps, is suitable for industrial production, has the advantages of high content of effective components, remarkable curative effect, good effect, safety, no side effect and low production cost, is convenient to take, and is an ideal medicine for activating blood to remove stasis, tonifying qi and preventing exhaustion, and treating both symptoms and root causes of ectopic pregnancy.

The invention discloses a method and system for detecting and solving a local area network attack. The method comprises the following steps: a server intercepts an MAC address of a client that manufactures a large number of messages, writes the MAC address in a notification message and sends the notification message; after the client receives the notification message, an alert box pops up to prompt a user of the client to stop sending spam messages in the case of MAC matching success, and the client assembles and returns a response messages to the server; after a switch receives the notification message sent by the server, the switch adds the information of the switch, forms a retrospective message and sends back the retrospective messages in a receiving port; and the notification messageis forwarded, a timer is generated at a forwarding port, when the timer is overtime, and if the retrospective message returned by the switch connected with the forwarding port is not received, the forwarding port is closed. The system comprises a server module, a client module and a switch module. By adoption of the method and system disclosed by the invention, the network congestion caused by thespam messages can be cleared.

The invention discloses a special vehicle for obstacle clearance and rescue, comprising a vehicle chassis, a front boom assembly installed on the vehicle chassis, a front boom assembly lifting hydraulic cylinder, and a front boom assembly lifting hydraulic cylinder installed under the front boom. A rear boom assembly lifting hydraulic cylinder is provided, the rear boom assembly lifting hydrauliccylinder being installed under the rear boom assembly. A lift hydraulic cylinder control valve, a hydraulic pump, a hydraulic oil tank, a hydraulic pipe and that like of a boom assembly are also installed on the chassis of the vehicle, the hydraulic pump is driven by a power take-off device on the chassis of the vehicle, and the lifting hydraulic cylinder of the boom assembly, the control valve ofthe lifting hydraulic cylinder of the boom assembly, the hydraulic pump and the hydraulic oil tank are connected by the hydraulic pipe. The vehicle chassis can have a front and a rear cab, and can bedriven in two directions. The obstacle removal and rescue vehicle of the invention can realize two-way obstacle removal and rescue operation, and is suitable for the occasions where the road or the operation space is narrow, and the vehicle is inconvenient to turn around, or cannot turn around.

The invention relates to the field of hydrometallurgical equipment, in particular to a water supply system for hydrometallurgy. According to the water supply system for the hydrometallurgy, productionis not required to be stopped to dredge pipelines, and the smooth progress of production is ensured. The water supply system for the hydrometallurgy comprises a high-level water tank, a water outletpipe of the high-level water tank separately communicates with a first high-pressure pump and a second high-pressure pump, the first high-pressure pump and the second high-pressure pump are separatelyin communication with a first high-pressure pump water supply pipe and a second high-pressure pump water supply pipe, and the first high-pressure pump water supply pipe and the second high-pressure pump water supply pipe are in communication with a water consuming point pipeline. When the pipeline where the first high-pressure pump is located is blocked, only the pipeline system where the secondhigh-pressure pump is located is necessarily and directly switched, so that production-stopping for dredging is not required, and the smooth progress of production is ensured. The water supply systemfor the hydrometallurgy is especially suitable for hydrometallurgical production which needs to ensure production continuity.