239 results about "Air sacs" patented technology

An apparatus and method of detecting COPD and in particular, emphysema utilizes a change in acoustic transmission characteristics of a lung due to e.g. the appearance of fenestrae (perforations) in the alveoli of the lung. The use of acoustic signals may provide good sensitivity to the existence of alveolar fenestrae, even for microscopic emphysema, and the appearance and increase in fenestrae may be determined by monitoring acoustic transmission characteristics such as, for example, an increase in acoustic signal velocity and velocity dispersion, and/or a change in attenuation. A transmitter may be located in e.g. the supra-clavicular space and receivers may be mounted on the chest. Measurements may be correlated between pairs of receivers to determine acoustic transmission profiles.

A method and apparatus for providing ventilatory assistance to a spontaneously breathing patient An error signal (56) is computed that is the difference between a function of respiratory airflow (54) over a period of time and a target value (52). Using a servo loop, air is delivered to the patient at a pressure that is a function of the error signal, the phase of the current breathing cycle, and a loop gain that varies depending on the magnitude of the error signal. The loop gain increases with the magnitude of the error signal, and the gain is greater for error signals below a ventilation target than for error signals above the ventilation target value. The target value (52) is an alveolar ventilation that takes into account the patient's physiologic dead space.

In one aspect, the invention is related to a method of treating a patient with Parkinson's disease, the method including administering to the respiratory tract of the patient particles that include more than about 90 weight percent (wt %) of levodopa. The particles are delivered to the patient's pulmonary system, preferably to the alveoli or the deep lung.

A method and apparatus for determining the presence or absence of a pulmonary embolism (PE) in a patient. The breathing gas CO₂ partial pressure (PCO₂) during the expiration of breathing gases by the patient, the end tidal (EtCO₂), CO₂ partial pressure, and the CO₂ partial pressure (PaCO₂) of the blood are measured. The volume (V) of breathing gases expired during the expiration of breathing gases by the patient is also measured and a relationship between changes in breathing gas CO₂ partial pressure (PCO₂) and changes in breathing gas volume (V) in an alveolar expiration phase of patient expiration is determined. The difference between the blood CO₂ partial pressure (PaCO₂) and the end expiration CO₂ partial pressure is divided by the relationship between PCO₂ and V produce a quantity which is compared to a threshold value. If the quantity is below the threshold value, the absence of a pulmonary embolism is indicated.

The present invention relates to powdery inhalant compositions, each of which contains a steroidal anti-inflammatory drug, a carrier and water and has a water activity at 25° C. of from 0.35 to 0.75. Each powdery inhalant composition according to the present invention is high in the delivery rate of its steroidal anti-inflammatory drug to an inhalation target site from the nasal cavities or oral cavity, that is, to the alveoli, the bronchioles, the bronchial tubes or the airway, and allows the steroidal anti-inflammatory to exhibit its superb therapeutic effects.

The present invention comprises artificial tissue constructs that serve as in vitro models of mammalian lung tissue. The artificial tissue constructs of the present invention comprise functionally equivalent in vitro tissue scaffolds that enable immunophysiological function of the lung. The constructs can serve as novel platforms for the study of lung diseases (e.g., interstitial lung diseases, fibrosis, influenza, RSV) as well as smoke- and smoking-related diseases. The artificial tissue constructs of the present invention comprise the two components of alveolar tissue, epithelial and endothelial cell layers.

The invention discloses an intelligent digital sleep detection mattress and a use method thereof. The intelligent digital sleep detection mattress comprises a bedstead, a mattress, PC touch screen equipment/mobile display control equipment, a data processing system and a control switch. The data processing system consists of a controller and an integrated chip circuit board, the mattress comprises a movable part and a support part, the movable part consists of an upper fixed fabric, a plurality of springs, a plurality of pressure sensors, a lining and a lower fixed fabric, the bedstead is internally equipped with a plurality of air sacs, the lower parts of the air sacs are connected to air pressure valves, air pumps and an inflation and deflation control device. After input of basic information and sleep habits, the integrated chip circuit board outputs a control signal, the air sacs are inflated and deflated to make the mattress hardness suitable for a detector to perform sleep testing, the mattress automatically calculates a standard pressure suitable for the detector according to the electric signals output by all infrared micro-distance sensors, the corresponding relation of an obtained hardness value and a segment set value is calculated according to an algorithm formula to obtain a segment value, and the hardness of mattress suitable for the need of an individual can be measured and calculated, thus providing accurate guidance for selection of suitable mattress.

An air-bag (10) is disclosed which defines at least one inflatable region (14). The air-bag (10) is provided with a gas supply duct (22) which extends into the air-bag (10). The gas supply duct (22) is formed of fabric and is provided with at least one outlet aperture (24) therein through which gas may flow into the said at least one inflatable region (14) of the air-bag (10). The outlet aperture (24) is provided with a reinforcement to reinforce the periphery of the aperture (24) in order to prevent undesirable fraying of the fabric around the periphery of the aperture (24), or undesirable deformation characteristics of the fabric around the periphery of the aperture (24), as the air-bag (10) is inflated.

A protective bag having inner pad for surfboard is disclosed. The protective bag comprises a middle bag formed by corresponding fold of a fabric material for protection of the middle section of the surfing board; two end bags having a triangular shape for the protection of the two ends of the surfing board, wherein the middle bag and the end bags are provided with an inner pad with buffering device formed from air sacs; and a bag body with a detachable strap which can enclose the entire surfing board for carrying.

The invention discloses a suspension-type helicopter which comprises a helicopter body. The helicopter body comprises a rack and at least two duct rotor wing components arranged on the rack. Each duct rotor wing component comprises a connecting shaft which is connected to the ends of the rack and can rotate around the horizontal axis, duct rotor wing motors which are arranged at the outer ends of the connecting shaft, rotor wings which are connected with the duct rotor wing motors and duct shells which are arranged outside the rotor wings. The rack is further provided with an operating hanging bin and a flying control module. The rack is further provided with at least two air sac fixing frames, and each air sac fixing frame is provided with an air sac. The air sacs inside the air sac fixing frames are fixed on the same horizontal plane by the air sac fixing frames. The air sacs are filled with gas, wherein the specific gravity of the gas is lower than that of the air. The suspension-type helicopter integrates the advantages of a common unmanned helicopter and the advantages of an airship and has the advantages of being large in load capacity, high in maneuverability and flexibility, high in security, simple in structure, strong in stability and the like when being used for farmland operations.

Provided is a full-automatic multifunctional solar life-raft which can not be overturned when being unfolded, and comprises a survival capsule, an automatic extension arm, a divided storage chamber and counterweight. The survival capsule is composed of pluralities of annular air sacs, arc air sacs and double-layered outer covers. The roof of the survival capsule is provided with a solar cell panel cover, the bottom of the survival capsule is provided with a power bay and the divided storage chamber, the middle of the survival capsule is provided with the automatic extension arm for supporting. A dismountable counterweight chamber is arranged under the storage chamber, sail lift-off balloons which can be folded for storage are installed in the solar cell panel cover, cabin doors and sail balloon bags are in interval arrangement by pluralities of double-layered outer covers, folded sail balloons are arranged inside the sail balloon bags, and an engine, an electric air pump, a sea water purifier, a divided storage box and pluralities of lifesaving articles are arranged inside the sail balloon bags. The life-raft is a multifunctional lifesaving appliance which can automatically advance, travel by wind force and even lift off, being powered by solar energy, the sea water purifier and the pluralities of lifesaving articles can prolong the survival time of casualties as long as possible, and the life-raft which is just a spheroid after being deflated and recovered is easy to be placed on boats.

The invention discloses a box body structure for placing an object therein, which comprises a main body, a plurality of air sacs and an inflating/deflating device, wherein the inside of the main body is provided with an accommodating space for placing the object therein; the air sacs are arranged in the main body, and the equal air sacs are communicated with each other; and the inflating/deflating device is arranged in the main body, is provided with an airflow channel which is connected to the equal air sacs, and transports a gas to the equal air sacs by the airflow channel so that the equal air sacs are expanded to cover the object. The invention inflates the air sacs so that the expanded air sacs can cover the object placed in the main body and is used for fixing the object in the main body, and utilizes the buffer capacity obtained after the air sacs are expanded to prevent the object from being damaged by collision.

The invention discloses a medical head examination fixing device, which comprises a head fixing bottom plate and a head-resting box. The upper end of the head-resting box is provided with an arc head-resting groove, and a protective cushion fitting the arc head-resting groove is arranged in the same and provided with a plurality of first massage elastic air sacs. Arc clamping plates are arranged on two upper sides of the head-resting box, lower ends of the arc clamping plates are hinged to the head-resting box, and first forehead protecting air sacs and second forehead protecting air sacs arearranged on inner sides of the arc clamping plates. Fixing side plates are arranged on two sides of the upper end face of the head fixing bottom plate, and a plurality of second massage elastic air sacs in one-to-one correspondence to the first massage elastic air sacs are arranged on the outer arc side wall of the arc head-resting groove and communicated with the corresponding first massage elastic air sacs. The medical head examination fixing device has advantages that surgical comfort of patients can be improved by head massage of the patients, steadiness in clamping and high practicality are realized, and clamping injuries are avoided.

The invention relates to a blue-green algae disposing device and is characterized in that the tail of a catamaran hull is provided with an algae collector and a replaceable filter screen rack, two sides of the catamaran hull are provided with movable counter weight regulating block, the bottom of the catamaran hull is provided with a catamaran bottom frame, the catamaran bottom frame is provided with a spray drum and at least one pressure pump, the jetting drum and the pressure pump are connected by a pressure pipeline, two ends in the spray drum are provided with spray-heads, the lower part of the spray drum is provided with a discharge pipeline, the water outlet of the discharge pipeline is provided with a filter. When in use, the catamaran hull floats in the water area needing clearing algae, the algae enters into a dustpan type algae collector and the filter screen rack to enter the catamaran hull, so that water containing algae can obtain kinetic energy to flow through the pressure pipeline to the spray drum to be sprayed to a baffle plate via the spray-heads, after forceful collision, the clusters of algae are scattered and broken, algae bubbles (air sacs) are smashed and burst, so that algae can not do harm to water surface any more by clustering.

A smart snore-ceasing back mat based on postural therapy comprises a master controller, a mattress portion and a smartphone end APP (application), the master controller is used for judging whether snore reaches a specific standard or not, and if yes, double air sacs of the mattress portion are bulged by an air pump so as to change a posture of a user. The smart snore-ceasing back mat is applicable to patients with an obstructive sleep apnea-hypopnea syndrome 4.1% in morbidity rate, and the obstructive sleep apnea-hypopnea syndrome is a risk factor for hypertension, diabetes, coronary disease and stroke. The smart snore-ceasing back mat is capable of monitoring and recognizing the snore in environmental noise and changing a supine sleeping posture of the user slightly and timely without affecting sleep of the user to enable the user to lie on the side by at least 30 degrees, and a respiratory tract obstruction situation of the user is mitigated by means of lying on the side so as to change a snoring and hypoxemia state of the user during sleeping; postural intervention is carried out only when a program judges necessity, the user is not forced to lie on the side in the whole night, and accordingly, the smart snore-ceasing back mat is highly comfortable and beneficial to long-term use by the user. The smart snore-ceasing back mat provides an effective and compliant domestic solution for early out-of-hospital intervention of sleep disordered breathing.

The invention discloses a health product for turning white hair to black and a preparation method thereof. The health product is prepared from the following raw materials in percentage by mass: 6-10 percent of sea salt, 9-13 percent of cacumen biotae, 3-7 percent of black mulberry, 13-17 percent of black sesame, 18-22 percent of black rice, 18-22 percent of black soya beans, 3-7 percent of peanut coat, 3-7 percent of saffron, 6-10 percent of polygonum multiflorum and 1-5 percent of brown sugar. The preparation method comprises the following steps: roasting the sea salt, cacumen biotae and black mulberry in a copper pan at high temperature for three times; mixing with black sesame, black rice, black soya beans, peanut coat, saffron, polygonum multiflorum and brown sugar; and grinding the mixture into powder of 100-200 meshes with a grinder to obtain the health product. The health product can be used for delivering nutritional ingredients in blood to air-sacs at terminals of blood vessels. A person with white hair takes 50g of the health product every morning, and the hair blackening effect can be achieved after the health product is taken for four months continuously; and an ordinary person can take the health product as nutritional breakfast. The health product has pure grain formula, does not have side effect, and has the effects of nourishing qi and blood, tonifying kidney deficiency and delaying senescence.

The invention discloses a digital pillow type device for remedying the head sleeping posture by identifying stertor signals, which comprises a pillow body, wherein four air sacs are arranged in the pillow body and respectively connected with a miniature inflator pump and an air pressure sensor; each air pressure sensor is respectively connected with an electric damping exhaust valve; a sound collector for collecting sound is arranged in the pillow body and connected with an amplifying and filter circuit for preprocessing sound signals; the amplifying and filter circuit is connected with a digital signal processing device; and the digital signal processing device is connected with each air pressure sensor and each electric damping exhaust valve. The pillow type device has reasonable structure, does not apply electric stimulus and mechanical stimulus or the limitation of an additional appliance, guarantees the natural sleeping posture and depth of a sleeper, and is more beneficial to the health sleeping.

The invention relates to an automatic turning-over-air-sac nursing mattress. The automatic turning-over-air-sac nursing mattress is characterized by comprising an air sac module, a controller module and a flexible pressure-sensitive sensor module; the flexible pressure-sensitive sensor module is installed on an air sac module, and the controller module controls the flexible pressure-sensitive sensor module and the air sac module to permit corresponding movement; the air sac module comprises air sacs, air cushions, branching rubber air pipes, a first air storage tank, a second air storage tank and an air inflation pump; an air sac unit array is formed by the 80 air sacs, the 80 air sacs are installed on a bottom fabric in a 8*10-array mode, the sizes of all the air sacs are 100 mm *100 mm, and each air sac is divided into an upper layer and a lower layer; a branching rubber air pipe is connected to an air nozzle of each air sac, and the branching rubber air pipes of the two adjacent air sacs are connected through T-shaped joints, and then connected with a micro electromagnetic valve and communicated with a total rubber air pipe through a conversion joint; the air sacs in the first row to the fourth row serve as the A part, and the air sacs in the fifth row to the eighth row serve as the B part.

Swellable particles for delivery of a drug or other working agent to the pulmonary system are provided. The swellable particles include a dehydrated (dry) aerodynamic particle diameter of 5 μm or less to enable delivery to the respiratory tract, such as for example to the tracheo-bronchial airways of the upper respiratory tract and/or to the alveolic regions of the deep lung, and a hydrated particle diameter that is greater than 6 μm volume mean diameter to retard or prevent their phagocytosis by the macrophages present in airways of the respiratory tract.

The vein stabilizer is a small device that: 1) isolates the vein, so it cannot roll from side to side when penetrated; and 2) causes the vein to bulge toward the surface of the skin making it more apparent. The vein stabilizer includes a sterile, two-piece disposable plastic device that isolates the vein in between two plastic tabs which are similar in shape and size. One tab is fixed on the skin on one side close to the vein. The other piece is mobile and slides on an elastic band. The tabs are adjusted to the preference of the IV initiator or the situation on the other side of the vein (big vein, small vein, tortuous vein, collapsed vein, sclerous (hardened) vein, obese patient, etc.).