437 results about "Gas bladder inflation" patented technology

This invention relates to active protective garments which are inconspicuously worn by an individual and which activate upon certain conditions being met. Activation causes inflation of regions of the active protective garment to provide padding and impact cushioning for the wearer. The invention is an active protective garment such as pair of shorts or pants, a jacket, a vest, underwear, and the like. The garments comprise multiple layers of material that constrain pockets or regions that are inflatable by a source of compressed gas or foam. The garments also comprise sensors to detect ballistic parameters such as acceleration, distance, relative acceleration, and rotation. The sensor information is used to determine whether activation is required. Detection and activation are accomplished in a very short time period in order to offer maximal protection for the individual wearing the garment. The system comprises a computer or logic controller that monitors the sensor data in real time and coordinates the information from all sensors. The system calculates velocity, distance, and rotational velocity. A rule-based system is used to detect a complex fall in progress and discriminate said fall in progress from the events of every day life. The pockets or inflatable regions of the garment protect the individual against falls and other impacts that may cause bone fracture or organ damage.

A patient support, such as a mattress, includes a plurality of inflatable bladders. Depth sensors are included in the support that measure the degree of penetration of a patient into the mattress. An air pressure sensor is also included that measures the pressure inside at least one bladder. A suitable inflation level of the mattress is determined by monitoring the rate of change of the depth with respect to air pressure as the bladder is either inflated or deflated. By detecting an inflection point in the graphical relationship of the depth and pressure outputs, a suitable inflation point for the bladders is determined that reduced interface pressures experienced by the patient, yet does not overly sink the patient into the mattress to a degree or discomfort. Analyzing the outputs of the depth and pressure sensors can also be used to detect a patient's heart rate and respiration rate.

An adaptive multi-stage inflator for inflating an air bag in an air bag safety system. The adaptive multi-stage inflator comprises a housing, a primary igniter assembly and a secondary igniter assembly. The housing has a top wall, a bottom wall and a side wall, which together define an interior chamber therebetween. The primary igniter assembly is disposed in the interior chamber of the housing and is configured to initiate the generation of a primary inflation fluid to inflate an air bag. The secondary igniter assembly is also disposed in the interior chamber of said housing. The secondary igniter assembly is configured to augment the primary inflation fluid by producing a secondary inflation fluid to further inflate the air bag. The inflator also includes a bypass assembly that is configured to provide the secondary inflation fluid to the air bag at substantially the same temperature as it was produced by the secondary igniter assembly, thereby increasing the pressure of the primary inflation fluid. The bypass assembly comprises a bypass passage configured such that the secondary igniter assembly is in direct fluid communication with the air bag. The bypass assembly has a retainer disk which in combination with the interior surface of the housing defines the bypass passage. The inflator also includes a filter disposed in the housing proximate to the side wall thereof to prevent the passage of particulates. The bypass assembly is configured to direct the secondary inflation fluid to the air bag without the secondary inflation fluid passing through the filter. Both the primary igniter assembly and the secondary igniter assembly comprises a quantity of igniter material.

The invention provides an anti-settling protection device, and relates to the technical field of automobile security devices. The anti-settling protection device comprises an air storage tank and a plurality of air bags, wherein the air bags are arranged at the chassis, top and two sides of the automobile, and all communicate with the air storage tank via air-guide tubes; an inflation control valve is arranged on each air-guide tube, and electrically connected with an automobile controller; and a water detection element is arranged on the automobile chassis, and electrically connected with the automobile controller. The invention also discloses an automobile comprising an automobile body and an anti-settling protection device installed on the automobile body. By installing the settling protection device on the automobile body, the inflation device can be started before the automobile falls into water or after the automobile falls, so that the air storage tank can inflate each air bag, the automobile can be lifted up or reduced in settling speed under the effect of buoyancy of water, and thus life security of personnel in the automobile is ensured.

A gas blinder (10) comprises a fixed gasbag (11), a gas charging control device (13), and a gas discharging control device (15). The gas charging control device (13) and the gas discharging control device (15) are both electrically connected to a control device (16). The fixed gasbag (11) comprises a first gas intake opening (1101) and a first gas discharging opening (1103). The gas charging control device (13) is in sealed connection with the first gas intake opening (1101), and is used for charging, under the control of the control device (16), gas into the fixed gasbag (11) through the first gas intake opening (1101). The gas discharging control device (15) is in sealed connection with the first gas discharging opening (1103), and is used for discharging, under of the control of the control device (16), gas in the fixed gasbag (11) through the first gas discharging opening (1103). A wearable device uses the gas blinder (10). The gas blinder (10) has a good light avoiding effect and is comfortable to wear.

A traction adjustable cervical collar transferring weight of the head from the cervical spine to the shoulders. A collar portion releasably encircles the neck and is inflated by inflating apparatus. A bladder of the inflating apparatus is a part of the collar portion and a squeezable hand bulb of the inflating apparatus selectively inflates the bladder. The bladder has a lowermost surface that is flat for preventing slippage along the shoulders of the wearer. The bladder has a pair of side walls and contains a plurality of ribs extending upwardly from the lowermost surface thereof and which have a portion of the pair of side walls of the bladder adjacent thereto being attached thereto so as to provide rigidity to the bladder and prevent it from rolling over onto itself during use.

The invention provides a device and a method for detecting ball stones in an air bag type ball mill, and relates to the technical field of a ball mill detection device. The device comprises a ball mill cover (2) at an opening of the ball mill (1), and is characterized in that the lower part of the ball mill cover (2) is provided with a protective head (3) which can be inserted into the opening of the ball mill (1); a cavity structure is formed in the protective head (3); a detection head (4) is arranged at the lower side in the cavity, and the bottom end of the detection head extends into the ball mill (1); an air bag (7) is fixedly arranged above the detection head (4); the upper part of the air bag (7) is connected with a gas pressure detection sensor (10) outside the ball mill cover (2) and an air bag inflating device; the gas pressure detection sensor (10) is connected with a signal processing device. The method for detecting the ball stones in the air bag type ball mill comprises the steps of calibrating, acquiring a data list, and then detecting the amount of ball stones in the ball mill. After the device and the method are adopted, the amount of the ball stones can be detected, a data basis is provided for adding ball stones, and the amount of the ball stones in the ball mill is stable.

An apparatus for continuously controlling fluid flow in a sewer conduit, comprising: a) moisture sensors detecting levels of fluid in this conduit; b) an inflatable bladder, mounted in the sewer conduit for releasably sealing in fluid tight fashion a section of this conduit; an air compressor, for inflating the bladder; and a control box including a CPU, sensitive to the moisture sensor and actuating the air compressor responsively to conduit fluid level conditions reaching beyond a preset threshold value. The performance of the apparatus is independent of the speed of fluid flow in the sewer conduit.

The invention discloses an air bag sealing device for a concrete test block penetration test. The air bag sealing device comprises a base used for bearing a test block, a sleeve arranged on the base,the cross section of the air bag being annular, and an upper cover which covers the sleeve. The air bag is higher than or equal to the test block; an inflation cavity is formed in the air bag; a gap is reserved between the inner wall of the air bag and the side surface of the test block before the air bag is inflated; after the air bag is inflated, the inner wall of the air bag is tightly attachedto the side face of the test block, an inflation opening communicated with the inflation cavity is formed in the outer wall of the air bag, an opening is formed in the position, corresponding to theinflation opening, of the side wall of the sleeve, at least one water injection channel is formed in the base, and water injection openings of the water injection channels are formed in the peripheralwall of the base. The air bag sealing device for the concrete test block penetration test is simple in structure, time-saving, labor-saving, high in sealing efficiency and capable of guaranteeing thesealing quality.

The invention belongs to the field of medical equipment, and particularly relates to a novel trachea cannula. The novel trachea cannula comprises a cannula body, a balloon and a balloon inflation connecting pipe; the lower end of the balloon inflation connecting pipe is communicated with the balloon, the upper end of the balloon inflation connecting pipe is connected with a balloon inflation device, a strip-shaped groove is formed along the outer wall of the cannula body, and the balloon inflation connecting pipe is embedded in the strip-shaped groove; an annular groove is formed in the lower section of the cannula body, and the balloon is fixed in the annular groove. According to the novel trachea cannula, visual operation of the trachea cannula is achieved, and meanwhile it is guaranteed that a camera device is used repeatedly; insertion of the trachea cannula is safe, and the probability of disengagement of a gular cartilage and damage of the inner wall of a respiratory tract is reduced; collapse and bending of the trachea cannula body at the meshing part are prevented; oxygen supply is not interfered with surgical operation.

The invention discloses an intelligent inflatable waistband. The waistband comprises an airbag assembly, an air source assembly, a control assembly and a waistband body, wherein the airbag assembly comprises an airbag and a turnover box, the turnover box is connected and fixed on the waistband body, and the airbag is arranged in the turnover box and is connected with the waistband body through a plurality of connecting lines; the air source assembly comprises an air storage cylinder and an automatic cylinder opening device; an air pipeline is arranged in the waistband body; the control assembly comprises a control chip, a power supply, an electronic circuit and a pressure sensor, the electronic circuit and the pressure sensor are electrically connected with the control chip respectively; when water pressure and time which are detected by the pressure sensor reach the set values, the control chip starts the automatic cylinder opening device to open the air storage cylinder to supply airto the airbag through the air pipeline, the airbag is inflated and expanded to be ejected out of the turnover box and is filled with the air to be fully expanded, and the fully expanded airbag pullsthe waistband body through the connecting lines and supports a human body to float on the water surface.

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.

The invention discloses a self-adaptive air cushion type head fixing device, which comprises an air leaking device, an air inflation device, a single chip, an air charging and discharging switch, a pressure sensor, a relay and a U-shaped pillow for fixing the head part of a patient; an air chamber of chargeable air is placed in the U-shaped pillow, and the single chip is connected with the air inflation device through the relay; the air inflation device is connected with the air chamber, and the air charging and discharging switch is connected with the single chip; the air charging and discharging switch opens the single chip to control the electrification of the relay, and the air inflation device charges the air chamber, thus the U-shaped pillow tightens the head part of a patient; the pressure sensor is connected with the air chamber for monitoring internal pressure of the air chamber in real time and transmitting the pressure signal to the single chip to compare with the preset pressure value; when the pressure in the air chamber is equal to the preset pressure value, air inflation device stops air inflation; air leaking device is connected with the air chamber. Through charging and pressurizing the air chamber, the U-shaped head pillow fixes the head part of the patient, and guarantees that the head part of the patient cannot sway or move during the CT examination process; besides, the CT image is clear and the diagnosis is exact.

The invention discloses an injection mold convenient for stable demoulding. The injection mold comprises a moving module and a fixed module, the moving module comprises a moving base, a supporting plate is welded to the moving base, a cavity is formed between the moving base and the supporting plate, an air pump is installed in the moving base, an air bag is connected to the output end of the airpump, a pressing plate is fixedly adhered to the air bag, two abutting rods are correspondingly welded to the pressing plate, springs are arranged on the two abutting rods in a sleeving mode, a sliding groove is formed in the inner wall of the cavity, and sliding blocks are correspondingly welded to the upper end and the lower end of the pressing plate. According to the injection mold, a water-cooling cavity is utilized to improve the cooling setting efficiency of a plastic part, and thus the waiting time of demoulding is shortened; the temperature in the injection mold is adjusted properly through the cooling effect, the temperature difference between the injection mold and the environment is advantageously reduced, and thus the air pressure adjustment in an injection module is achieved;and the air pump is utilized to inflate the air bag to achieve the horizontal movement of the abutting rods, thus the abutting rods push the forming plastic part, and the plastic part is separated from a moving mold stably.

Disclosed is a lower limb rehabilitation therapeutic device. A lower limb protective frame comprises a thigh protective frame and a shank protective frame which are hinged through a bent joint. Thigh and shank inflation pressure belts are correspondingly and separately fixed to the thigh protective frame and the shank protective frame. In the corresponding protective frame direction, at least two air bags are arranged inside the inflation pressure belts; a sliding rheostat is arranged inside the bent joint, in the starting state, when the thigh protective frame and the shank protective frame are relatively bent along the bent joint to achieve the starting angle, the sliding rheostat changes the resistance, signals are sent out to an analog-digital converter through a time relay, and an inflation pump inflates the air bags inside the inflation pressure belts through an air pipe; when the thigh and shank protective frames return back to the vertical motion along the bent joint, gas inside the air bags are exhausted from an air valve. By adopting the reasonable control method, for the rehabilitation crowd bedridden for a long time and lack of exercise, the vein blood shunt running is improved, deep venous thrombosis is prevented from being formed, atrophic muscle is rehabilitated, anchylosis tractive force is lowered, and the rehabilitation exercise period is shortened.