33results about How to "Fast deflation" patented technology

The present invention provides a catheter, a drug delivery system and methods for the localized delivery of therapeutic or diagnostic agent to a target location in a subject and methods for the treatment of a pathological disorder in a subject using the same.

An apparatus for enhancing blood flow through a limb of a subject includes a compression sleeve extendable around the subject's limb and having a plurality of compressors situated next to one another along the sleeve. In use, the compressors compress the limb in sequence to move blood within the limb from one end of the sleeve to the other. In particular, as a said compressor begins to compress the limb, the compressor preceding it in sequence already compresses the limb, and the next preceding compressor in sequence ceases to compress the limb.

An air pump for an inflatable article has a housing and a blower, a switch assembly and an air valve mounted in the housing. The switch assembly has a slider and a driving device sliding the slider and the air valve to switch operating modes of the air pump. Thus, the air pump inflates or deflates the inflatable article or maintains or fine-tunes the air pressure inside the inflatable article. Therefore, the first and second openings of the housing are disposed on the housing for connection to different kinds of inflatable articles and the airflow directly flows through the air pump so inflating and deflating the inflatable article is fast.

An air pump manually rotated to inflate and deflate an air mattress has a housing, a first and a second air vents mounted on the housing, an air valve selectively actuated to block or open the second air vent, and a mounting rack in the housing. The mounting rack is rotated so that a first or a second air compartment in the mounting rack is aligned with the second air vent, and the air valve is propped up by an undulant baffle on the mounting rack to switch to one of inflation, deflation and pressure hold-up modes. Given the structure of the air pump, the first and second air vents are flexibly arranged and can be respectively mounted on a top and a bottom of the housing and directly aligned with mutually. Therefore, the air path is shortened to make the inflation and deflation faster and more efficient.

An air pump for an air mattress has a housing, a first air vent and a second air vent respectively mounted on a top and a bottom of the housing, a chamber, a blower and an air direction switcher mounted in the chamber, an actuating mechanism, and an air valve. A slider in the air direction switcher is moved by operating the actuating mechanism being a solenoid valve or a knob gear and a follower. The air valve is propped up by a sloping partition of the slider to open the second air vent. Given the structure of the air pump, the first and second air vents are flexibly arranged and can be directly aligned with each other. Therefore, the air path is shortened to inflate and deflate more rapidly and more efficiently.

A table assembly for a patient transfer device has an upper table with side plates that are differentially extended at the ends, and valve control for pneumatic tubing integrated with retraction of the side plates. During patient delivery only the delivery side plate is raised, to avoid catching linens in the nip formed between upper and lower belts. A slide assembly supporting the table assembly includes a fixed plate, an intermediate plate, and a full-motion plate which extend by means of rack-and-pinion drives. Each plate is symmetrical, and pinions are symmetrically located on opposite sides of the fixed or intermediate plate to allow hyperextension to either the left or right. Improved steerage for the device is provided by two centerline wheels which counter-rotate from a straight position to a turning position and further to a lateral position wherein the wheels are orthogonal to the longitudinal centerline of the device.

An inflatable device includes a tubular body fitted in a mouth of an inflatable body and having outer and inner end portions respectively defining an adaptor port and a valve seat therein. A valve member is movable between a closed position to be in air-tight engagement with the valve seat, and an open position to be disengaged from the valve seat so as to permit inflation and deflation of the inflatable body through the adaptor port. A plunger has a plunger rod connected to the valve member, and a plunger head such that when an air supplying tube of a pump is inserted into the adaptor port to force the plunger head to move toward the valve seat, the valve member is moved by the plunger rod to the open position. A biasing member is disposed to bias the plunger head to hold the valve member in the closed position.

The invention belongs to the technical field of air inflating and air pumping devices, and provides an air bag air inflating and air pumping device. The air bag air inflating and air pumping device comprises an air bag and air valve unit, an air pump unit and an air inflating and air pumping switching valve unit; the air bag and air valve unit is connected with the air inflating and air pumping switching valve unit, and the air inflating and air pumping switching valve unit is connected with the air pump unit; the air bag and air valve unit comprises an air bag and air valve set which comprises an air bag and one or two air valves, and the air pump unit comprises an air inlet and an air outlet for providing power for air inflating and air pumping; and the air inflating and air pumping switching valve unit comprises a three-way valve. Without adding additional costs, the air bag air inflating and air pumping device utilizes a ready-made air pump to reversely pump the air bag, compared with natural deflation, the deflation speed of the air bag is higher and constant, and the advantage that the deflation speed is not affected by external factors is achieved; and meanwhile, according to the air bag air inflating and air pumping device, air inflating and air pumping share the air pump, and thus the cost and a structural space are greatly saved.

One of the challenges for airports is to provide effective emergency response training in the event of aircraft emergency scenarios. For airports there is the additional expense to provide that training that is typically performed at a remote facility. A portable inflatable training aircraft will provide this training and reduces the cost to the airport management so that the training can be ongoing and effective without interfering with the normal operation of the airport.

A support cushion for fast inflation and deflation comprises an air pouch and an air valve located on the air pouch. The air valve includes a valve base, a valve cover, a valve pillar and a locking member. The valve base has at least one air vent leading to the air pouch. The valve cover is coupled on the valve base to form an accommodating trough to accommodate the valve pillar. The valve pillar has a first opening and a second opening communicated with each other. The valve pillar also has a first position relative to the valve base to allow air to pass and a second position to block the airflow. The locking member can receive a turning force to drive the valve pillar to switch between the first and second positions. Operation is simpler and faster switch can be achieved, and leakage of air can be avoided.

An MR compatible steerable sheath with elastomeric member is provided. The elastomeric member is configured to serve as a reservoir and receive contrast media therewithin. The elastomeric member is positioned on the distal end of the steerable sheath and may circumferentially surround the sheath shaft or be offset from a longitudinal axis thereof. In operation, the contrast media allows a user to view the distal tip of the steerable sheath by virtue of the contrast media contained within the elastomeric member.

The invention discloses an inflation and deflation control valve. The inflation and deflation control valve mainly consists of a valve deck, a first valve seat, a main valve body, a second valve seat, a first diaphragm, a third valve seat, a second diaphragm and a valve bottom which are sequentially arranged from top to bottom as well as a check valve element, an inflation valve element, a deflation valve element, a valve rod, a pilot valve element, four reset springs and other components which are coaxially arranged; a first gas path connection port is formed in the valve deck; the upper cavity of the main valve body communicates with the lower cavity of the valve body through the inflation valve element; the check valve element is arranged in the upper cavity of the main valve body and forms a sealing pair with the first valve base; the deflation valve element is located in the lower cavity of the main valve body and forms a sealing pair with the second valve base; the pilot valve element is arranged on the second diaphragm and forms a sealing pair with the third valve base; an exhaust port is formed in the second valve base; a second gas path connection port is formed in the main valve body; a throttling exhaust hole is formed in the third valve base; and a first gas path and a second gas path are arranged on the valve body. The inflation and deflation control valve has the beneficial effects that the effective through diameter of a deflation valve opening is large, so that deflation speed is high; the automation degree is high; application cost is low.

The invention relates to the field of automobile parts, in particular to a side waist support self-adaptive adjusting system for an automobile seat and a working method thereof. The system comprises avehicle body all-terrain trigger key module which is characterized in that an ECU module is divided into two paths and is respectively connected with a GPS module and a steering wheel angle sensor module, the GPS module is sequentially connected with a vehicle-mounted map module, a CAN/LIN protocol module and a waist support receiving control module, a direct current permanent magnet brush motorand a shape memory alloy air valve module and is finally fed back to the ECU module to process the terrain; the steering wheel angle sensor module is sequentially connected with another CAN/LIN protocol module, another waist support receiving control module, another direct current permanent magnet brush motor and another shape memory alloy air valve module and is finally fed back to the ECU moduleto process an absolute angle. Compared with the prior art, the system has the advantages that the Y-direction displacement of the H point is reduced so as to improve the driving safety and the controllability, the accurate positioning of the terrain is achieved by using the GPS, the terrain is accurately judged through the angle sensor, and the system can be normally used under the environment of40 DEG C to 80 DEG C.

The invention discloses an adjustable safety seat which comprises a safety seat main body, a headrest and an adjustable backrest; the headrest is fixedly connected to the top of the safety seat main body; the adjustable backrest is fixedly connected to the bottom of the headrest; an adjusting rod is fixedly connected to one side of the interior of the adjustable backrest; fixing wheels are fixedlyconnected to the middle part of the adjusting rod; fixed teeth are fixedly connected to one side of the adjusting rod; connecting belts are movably connected to one side of the interior of the adjustable backrest; and a heating pipe is fixedly connected to the middle part of the interior of the adjustable backrest. The heating pipe can heat the seat for a user to improve the use feeling of the user in winter, an pneumatic pump can perform inflation and exhaust on an air bag to improve the safety of the seat, and the adjustable backrest enables the user to freely adjust a height and an angle of the seat to greatly satisfy the use feeling of the user, so that the adjustable safety seat is convenient to use, high in safety and suitable for the field of automobile accessories and has a wide development prospect in the future.

A pool cover for an aboveground swimming pool, the cover formed with an integrated inflatable and deflatable pocket centrally positioned on the cover. The cover is made of waterproof and durable vinyl PVC knife-coated material.

The invention discloses an inner cavity iron ball magnetic suspension type pneumatic artificial muscle. The inner cavity iron ball magnetic suspension type pneumatic artificial muscle comprises electromagnetic coils, multiple hollow iron ball bags, a thin-walled rubber membrane and a pneumatic muscle body; the electromagnetic coils are fixedly arranged in an upper connector and a lower connector of the pneumatic muscle body separately, generate magnetic fields through an external power supply and are used for balancing the gravity of the hollow iron ball bags in a pneumatic muscle inner cavity; and the exteriors of the hollow iron ball bags are wrapped with the thin-walled rubber membrane, the thin-walled rubber membrane is filled with high-pressure gas of which the gas pressure is higherthan that of the barometric pressure, and the inner cavity is basically full of the multiple hollow iron ball bags. According to the inner cavity iron ball magnetic suspension type pneumatic artificial muscle, the gas consumption can be decreased while quick inflating and deflating of the pneumatic muscle are achieved.

A MSP430 based electron sphygmomanometer is simple and convenient in operation, high in measuring precision, and strong in individual adaptability; the MSP430 based electron sphygmomanometer employs inflation process measurement, is fast in venting speed, thus shortening measuring time, and improving user measuring comfort level; the MSP430 based electron sphygmomanometer comprises a microcontroller; structural main points are that an microcontroller input end is connected with an undervoltage detection circuit, a blood pressure signal detection circuit and a keyboard; a microcontroller output end is connected with an LCD display module, a buzzer alarm module, and an inflation/venting control circuit; the output of the inflation/venting control circuit is connected with an input end of the blood pressure signal detection circuit; the blood pressure signal detection circuit, the microcontroller and the inflation/venting control circuit form a loop.

The invention provides a coating machine and a coating method. The piece breaking rate caused when a coating machine is used for producing TFT liquid crystal display screens can be reduced, and the machining yield of the TFT liquid crystal display screen can be improved.

The invention relates to a tire valve. The tire valve mainly comprises components such as a valve body, a check valve seat, a main valve seat, a valve bottom, a check valve clack, a main valve clack, check valve reset springs, a first diaphragm, a spacer ring, a second diaphragm, a delayed release valve, a low-pressure exhaust valve, an inflation valve and the like; an air inlet and an air outlet are formed in the main valve seat; a stepped hole and an air storage cavity are formed in the valve body; the check valve seat is mounted on the main valve seat; the valve body is mounted on the check valve seat; the check valve clack is mounted on the check valve seat; the check valve clack and the check valve seat form a sealing pair; the main valve clack and the main valve seat form a sealing pair; both the first diaphragm and the second diaphragm are mounted on the main valve seat and the main valve clack; the inflation valve is arranged on the main valve seat; the delayed release valve and the low-pressure exhaust valve are arranged in the valve body; and the tire valve further comprises a first air channel, a second air channel, an exhaust hole and a through hole. The valve opening of the tire valve has the large drift diameter and has the large opening degree during deflation, so that the deflation speed is greatly increased, and the survival ability of a military off-road vehicle in the battlefield is improved.