342 results about "Balloon" patented technology

A multi-layered balloon is provided where each layer is formed such that each layer is made from tubing that optimizes the inner wall stretch thus providing maximum balloon strength. The high pressure, multi-layer balloon is provided with layers that allow for slipping, such that the balloon has a very high pressure rating and toughness, yet excellent folding characteristics. Methods for producing such multi-layer balloons using existing balloon forming equipment are also provided. The multi-layer balloons can have alternating structural and lubricating layers, or layers with low-friction surfaces. The multi-layer balloons are preferably manufactured using a variety of methods including nesting, co-extrusion, or a combination of nesting and co-extrusion. The multi-layer balloons have balloon layers having substantially similar, or the same, high degree of biaxial orientation of their polymer molecules such that each balloon layer of the multi-layer balloon will fail at approximately the same applied pressure.

A medical system is disclosed that has three basic components; a retractable sheet, a first balloon that has a centrally arranged hollow, and a collapsible / expandable support structure at the hollow. The first balloon is for instance mounted / molded onto the exterior surface of the support structure. The aggregate of support structure and the first balloon is positioned, and once the sheet has been retracted from the first balloon, the first balloon is inflated. The support structure may be self-expandable or expandable by an expansion unit, such as a further balloon arranged at its inside. The lumen of the support structure is chosen to be smaller than that of a main lumen. The outside diameter of the inflated first balloon is chosen to be larger than the interior diameter of the main lumen. This procedure may be done using standard Seldinger technique and fluoroscopy. This makes the system user friendly and increases patient safety, as a well established clinical method may be used with some modifications according to the invention.

The invention discloses a transformer cabinet based on self-feedback uniform heat dissipation. The invention belongs to the field of transformer equipment, a special composite heat dissipation sheet can be additionally arranged on a surface of an existing transformer oil tank, matched lifting heat-absorbing balloons are introduced while the heat dissipation of the oil tank is greatly improved, a self-feedback heat dissipation mechanism arranged on the composite heat dissipation sheet is used for sensing the heat distribution condition on the transformer oil tank; phase expansion is carried outaccording to heat distribution; more lifting heat-absorbing balloons are attracted through the magnetic attraction effect to be in contact for heat transfer; the transfer of heat to the lifting heat-absorbing balloons is accelerated; after absorbing enough heat, the lifting heat-absorbing balloons automatically rise to a cup-shaped outer heat dissipation shell to transfer the heat to the outside;the lifting heat-absorbing balloons serve as intermediate media to play a role in temporary heat storage, a heat conduction bridge between the transformer oil tank and the outside is built, the uniform and efficient heat dissipation and cooling of the transformer oil tank are achieved, and, therefore, the working stability and safety of a transformer are improved.

A valve isolation tool for insertion through a vent duct and vent duct valve of a gas flow duct. The isolation tool includes an outer tube having proximal and distal ends, the outer tube having a diameter sized to extend through the vent duct and blocking valve. An inner tube having proximal and distal ends is arranged coaxially with and movable within the outer tube. An inflatable balloon is attached to the distal end of the inner tube, wherein the isolation tool outer tube is insertable through the vent duct to an opening in the gas flow duct. The inner tube is slidably insertable through the outer tube until the balloon is situated within a bore formed through the gas flow duct and is inflatable therein to block any gas leak through the gas flow duct.

A surgical balloon composed of an aseptically recovered umbilical cord vessel is provided. Methods of preparing a balloon and methods of using the same are also provided.

The invention relates to a cutting balloon. The cutting balloon comprises a balloon body and a telescopic cutting part, wherein the cutting part wraps the outer surface of the balloon body spirally inthe axial direction of the balloon body. The cutting balloon has the advantages that the cutting part wraps the outer side of the balloon body spirally, thereby improving the cutting effect, dispersing the rigid binding force of the cutting part on the balloon on a same horizontal line, and improving the transversability of balloon cutting; a connecting structure is of a spring spiral structure,thereby making it easier for the cutting part to conduct the axial elastic telescopic movement; a cutting assembly pin is of a hollowed-out structure, thereby improving the radial bending performancewithout weakening the axial supporting performance, and improving the transversability of balloon cutting; the cutting part has an outward protruding structure, thereby improving the cutting performance of the cutting balloon.

The application relates to a cryoablation temperature control method and system and a medium. The method is used for controlling the temperature in a cryoablation balloon, and comprises the followingsteps: generating a first target liquid inlet pressure control signal according to an acquired real-time temperature value in the balloon and a preset target temperature value and / or a real-time gas flow value in a gas recovery channel in an exhaust passage of the balloon and a target gas flow value, so as to control the liquid supply flow of a high-pressure proportional valve in a liquid supply passage of the balloon; generating a first target exhaust pressure control signal to control the exhaust flow of a low-pressure proportional valve in the exhaust passage of the balloon according to theacquired real-time air pressure value on the exhaust side of the balloon and a preset target air pressure value, and cooperating with the first target inlet pressure control signal to control the pressure value in the balloon within a preset safety threshold range and make the temperature in the balloon reach and / or maintain the target temperature value. The cryoablation temperature control method and system and the medium have the advantages of wide temperature control range, high precision and short operation time.

A portable launch rig (PLR) may include a support structure including two side supports defining an interior space for lifting and filling a balloon envelope of a balloon. Wheels on each of the side supports enable the PLR to be moved in various directions in order to prepare the PLR for launching the balloon. The side supports are connected by a lateral support beam having a pair of cranes arranged thereon. Each crane has an arm arranged over the interior space that is connected to a spreader beam. The spreader beam includes a lift assembly configured to lift and inflate the balloon envelope within the interior space. The PLR includes a platform and perch for supporting and moving the balloon envelope. A door assembly of the PLR includes a plurality of hangar doors configured to block wind from a respective direction of each hangar door entering the interior space.

The invention relates to a blood pressure measurement apparatus. The blood pressure measurement apparatus comprises a sleeve and a host connected with the sleeve. An upstream balloon and a downstream balloon are located on the flowing upstream and the flowing downstream of artery blood of the detected body, the downstream balloon is used for detecting change information of pulse signals, blood flow pulse changes caused by pressure changes of the upstream balloon are sensed in real time, and a microprocessor controls an air pump and an air release valve and processes pressure values, pulse signals or pressure values and pulse signals of one or two of the upstream balloon and the downstream balloon, wherein the pressure values, the pulse signals or the pressure values and pulse signals of one or two of the upstream balloon and the downstream balloon are detected by one or two of a first pressure sensor and a second pressure sensor respectively or simultaneously. According to the blood pressure measurement apparatus, the two inflating balloons are bonded to the limbs to perform pressurizing, pressure and pulse signals in the blood pressure measurement apparatus can be effectively detected, and thus blood pressure can be measured accurately and reliably, and measurement results are stable.

The invention relates to the field of hydrogen balloons, in particular to a hydrogen balloon capable of being flight controlled. The hydrogen balloon comprises an air bag, a hanging basket, a dynamical system, a weight, a fan, a lifting rope for connecting the air bag with the hanging basket, an emergency air releasing bag and a non-emergency air releasing device. Due to the dynamical system and fan blades provided by the invention, the hydrogen balloon can be lifted and flied freely in sky, so that the hydrogen balloon provided by the invention has the functions of a helicopter, is more effort-saving and environment-friendly than the helicopter, is more convenient than a fire balloon, can be used for outdoor advertising, building emergent evacuation and amusement, and also can be used as a short-distance traffic tool.

The invention discloses a multi-dimensional acousto-optic stage system based on an unmanned aerial vehicle (UAV) carrier. The system mainly comprises a helium balloon part, a ground station part, a UAV part and connecting cables, wherein the helium balloon part is suspended above the ground station part and pulled by the ground station part, the UAV part is partially connected to the helium balloon part, and the flight height is lower than that of a helium balloon. The multi-dimensional acousto-optic stage system based on the UAV carrier has the advantages that light and sound equipment and other equipment can be installed on a mobile UAV, and by flight of the UAV, carried equipment can move multi-dimensionally for flexibly rendering the desired stage effect, the light and sound effect is good, the audience involving feel is high, and interaction is good; according to the multi-dimensional acousto-optic stage system based on the UAV carrier, a ground station and the helium balloon are used, a battery load of the traditional UAV is transferred to the ground, and a power generator or a power grid can be used for supplying power, so that the endurance capacity of the UAV is improved; various outdoor mobile stages can be built conveniently by the aid of the mobile ground station.

The invention discloses a device used for carrying a lightweight remote sensing sensor and provided with a power helium balloon. The device is mainly used for carrying the lightweight remote sensing sensor to carry out a ground surface remote sensing monitoring task. The device comprises a flight module (1), a communication and control module (2), a first battery (3), a pan-tilt holder (4) and a ground control module (5). According to the device, the ground control module is adopted to control a line winding motor to release and control the device; since the helium balloon is adopted, on the one hand, buoyancy can be provided, and safety can be increased; since universal rotor wings are adopted, the direction of the device can be flexibly changed, and the device can have better maneuverability; a user does not need to worry about the missing of the device through collecting a control line; and a rotor wing unmanned aerial vehicle requires an opener airspace when taking off or landing, and however, the helium balloon and rotor wing protective screen of the device can protect the rotor wings, so that requirements for take-off and landing airspaces are lower, and therefore, the device can take off and land in woods and complex terrains.

A delivery device can provide sequential delivery of a plurality of intraluminal devices or tacks held in a compressed state on the delivery device. Delivery platforms on the delivery device can hold a tack in a compressed position and be positioned between annular pusher bands that may also be radiopaque markers. The annular pusher bands can be made of wire or sections of material to increase flexibility while remaining radiopacity. A post deployment dilation device can be included. The post deployment dilation device can be a plurality of expansion filaments, a bellows, or a balloon. A tack deployment method can include allowing a self-expanding tack to expand, aligning the post deployment dilation device under the tack, and causing the post deployment dilation device to expand radial to push outward on the tack.

The invention provides a balloon type automatic infusion device. The balloon type automatic infusion device is provided with a liquid storing pump, a dropping bucket, an upper guide tube, a lower guide tube, an adjusting device and a puncture needle, wherein the liquid storing pump is provided with a containing chamber, a power mechanism movably assembled in the containing chamber, and a liquid storing mechanism assembled to the front end of the containing chamber; the liquid storing mechanism is provided with a balloon cover, an elastic medicine balloon and an infusion end, wherein the infusion end is arranged on the outer side surface of the balloon cover; the elastic medicine balloon is assembled on the inner wall surface of the balloon cover in a seal way; a hollow chamber for containing liquid medicine is formed between the balloon cover and the elastic medicine balloon; and the balloon cover is fixedly assembled at the front end of the containing chamber. The elastic medicine balloon is provided with a wall and a cavity. The power mechanism is provided with a core bar, a rubber plug, a pull ring and a spring. The dropping bucket is provided with a body, an input guide tube, an exhaust device and a draining device, wherein the draining device is provided with an output tube; and a liquid inlet hole is formed on the output tube. The draining device is also provided with an assembling stand and a filtering membrane. The balloon type automatic infusion device has the characteristics of being low in cost, convenient to use, and wide in applicable scope.

The invention introduces a body cavity blocking device with a double-blocking effect, which comprises a guide wire, a conduit and a blocking object, wherein one end of the guide wire passes through the conduit and the body cavity of a blocking object; the far end of the blocking object and the guide wire are fixed; and an unfolded blocking object is axially compressed by drawing the near end of the guide wire so as to form a plug-shaped blocking object. The device is characterized in that: a balloon is arranged at the front end of the blocking object; the tail end of the conduit is provided with a Y-shaped seat, and a straight pipe of the Y-shaped seat is sleeved at the tail end of the conduit; and the guide wire passes through the straight pipe of the Y-shaped seat, and the drawing end of the guide wire extends outside the Y-shaped seat. The blocking device for blocking a barrier in the body cavity, provided according to the technical scheme, can be effectively applied to blockage, fixation and pulloff of thrombus and calculus in the body cavity.

The invention relates to a method for installing a pilot cable used in the construction of a suspension bridge, belonging to the field of bridge engineering. It is composed of a cable release device, a pilot cable, a transition cable, a balloon, a tractor and a cable retractor; the main points of implementation of the system are: the cable release device is fixed on the top of the bridge tower A, the rear end of the pilot cable is fixed, and the front end passes through the release cable. The tractor is connected with the tractor, and the length of the pilot cable between the tractor and the cable release device is greater than the height of the bridge tower; the rear end of the transition cable fixed on the top of another bridge tower B is connected with the cable retractor, and the front end is placed under the bridge tower; There is a balloon on the cable, and the balloon is used to lift the pilot cable to a height that does not affect the traffic; the tractor pulls the pilot cable to travel from bridge tower A to bridge tower B, and then lifts the pilot cable to the predetermined position through the transition cable. The invention can reduce the impact on traffic, and has low energy consumption and low cost.

The invention discloses an automatic control unmanned hot-air balloon. The automatic control unmanned hot-air balloon comprises a hot-air-balloon balloon, a combustor, a hot-air-balloon hanging cabin, airborne control equipment and an air exhausting amplitude operation mechanism, wherein the combustor is arranged in the balloon, the hot-air-balloon hanging cabin is located below the hot-air-balloon body and comprises a force bearing ring and a cabin body, the force bearing ring is provided with a connecting part, the cabin body is connected with the connecting part through pulling ropes to hang the connecting part on the lower portion of the force bearing ring, the balloon is connected with the connecting part through the pulling ropes to achieve connection of the balloon and the hot-air-balloon hanging cabin, the airborne control equipment and the air exhausting amplitude operation mechanism are arranged in the cabin body, the airborne control equipment comprises a combustor controller and an air exhausting amplitude operation controller, the combustor controller is used for controlling start and stop of a fuel valve to achieve ignition and combustion heating of the combustor, and the air exhausting amplitude operation controller is used for driving an actuator mechanism to move to achieve operation for the air exhausting amplitude operation mechanism. According to the automatic control unmanned hot-air balloon, the fact that levitation and falling are completed under a manual remote control working way can be achieved, flight is conducted in the designated area and the designated height, the control real-time property is high, and the control precision is high.

The invention discloses an overhead fixed-point continuous water spraying device based on a hot air balloon. The device comprises a hot air balloon body and a ground control assembly, wherein the ground control assembly comprises traction control mechanisms, power supply equipment, water supply equipment, monitoring equipment and a main controller; the hot air balloon body is connected with the traction control mechanisms by traction ropes; an aerial directional water spraying assembly is arranged on the hot air balloon body and is connected with and controlled by the ground control assembly. The device has the advantages of simple and compact structure, low cost, wide application range, good controllability, good fire extinguishment efficiency and the like.

The invention discloses a method for calculating dynamic response characteristics of a captive balloon, which comprises the following steps of: establishing a rigid body motion equation of the tethered balloon, namely determining kinematics and dynamics equations of the captive balloon relative to a centroid in a stable coordinate system by taking a captive balloon system as a mass point and taking the motion of the captive balloon system as rigid body motion; carrying out stress analysis on the captive balloon, and establishing a kinetic model of the captive balloon; determining expressions of the external force and the moment, performing summing and arranging to obtain a six-degree-of-freedom motion equation around the center of mass of the balloon; modeling two external wind fields of discrete gust and atmospheric turbulence, and providing wind field environment input for six-degree-of-freedom simulation of the captive balloon; loading the established atmospheric wind field model into a motion equation of the captive balloon in a function form to obtain a state space function, so that the state space function becomes a known control parameter which influences the motion state of the captive balloon; and solving the state space function to obtain a dynamic response process of the captive balloon under the condition of atmospheric wind field disturbance.

An access sheath is provided. The access sheath comprises: an outer sheath extending in one direction and having a cavity formed along a longitudinal axis of the outer sheath; and an inner sheath arranged in the cavity of the outer sheath, and having a plurality of balloons configured to expand, wherein the outer sheath includes: an outer body formed of a first material; and an elastic connection part formed of a second material which is more flexible than the first material of the outer body, and wherein a diameter of the outer sheath increases by the elastic connection part which expands according to an expansion of the balloons.

The invention belongs to the field of captive balloons, and provides a mooring system for quickly deploying a captive balloon, which integrates the functions of transition transportation, balloon bodystorage, automatic erection and expansion, lift-off / recovery, ground mooring and the like. The captive balloon mooring system platform mainly comprises a semitrailer, a rotary platform, a captive tower, a balloon cabin, a guide pulley and the like. The system is high in automation degree, transportation and transition of the system are facilitated, the balloon body can be directly inflated and unfolded on the mooring platform, the complex mounting and dismounting process in use is avoided, the system unfolding procedure is simplified, the preparation time of the system is shortened, the number of personnel needed for operation in the whole process is small, the unfolding and folding time is short, and rapid deployment is achieved.

A leaking block valve isolation tool for insertion through a vent duct and blocking valve of a gas flow duct. The isolation tool includes an outer tube having proximal and distal ends, the outer tube having a diameter sized to extend through the vent duct and blocking valve. An inner tube having proximal and distal ends is arranged coaxially with and movable within the outer tube. An inflatable balloon is attached to the distal end of the inner tube, wherein the isolation tool outer tube is insertable through the vent duct to an opening in the gas flow duct. The inner tube is slidably insertable through the outer tube until the balloon is situated within a bore formed through the gas flow duct and is inflatable therein to block any gas leak through the gas flow duct.

An apparatus for launching an aircraft secured to a balloon by a tether includes a support member and a launch arm connected to the support member and rotatable relative to the support member about an axis. At least one mechanism releasably connects the aircraft to the launch arm and has a first condition securing the aircraft to the launch arm when the aircraft has a first orientation relative to the launch arm. The release mechanism has a second condition automatically releasing the aircraft from the launch arm when the aircraft has a second orientation relative to the launch arm different from the first orientation.

The invention relates to a multifunctional three-cavity balloon gastric tube with a metal guide wire. The multifunctional three-cavity balloon gastric tube comprises a main cavity tube, an auxiliary cavity tube and a gas cavity tube. The lower end of the main cavity tube stretches into the auxiliary cavity tube, a first cap is arranged at the upper end of the main cavity tube, a second cap is arranged at the upper end of the auxiliary cavity tube, the gas cavity tube is integrally connected with the outer wall of the auxiliary cavity tube, a check valve is arranged at the upper end of the gas cavity tube, the lower end of the gas cavity tube is connected with a balloon, a balloon ring is fixed to the outer wall of the auxiliary cavity tube, the distance from the balloon to the end, far away from the second cap, of the auxiliary cavity tube ranges from 13 cm to 17 cm, a data guide line is arranged in the main cavity tube, one end of the data guide line is connected with a camera, the other end of the data guide line is connected with a display, the stainless steel guide wire is arranged in the auxiliary cavity tube, an annular anesthesia apparatus is fixedly arranged on the outer wall of the tail end of the auxiliary cavity tube, and a spray nozzle is arranged on the annular anesthesia apparatus. The multifunctional three-cavity balloon gastric tube is convenient to operate, capable of being used for examining, diagnosing and treating the alimentary canal of a patient in the direct view state, high in working efficiency and capable of relieving pain of the patient during examination and treatment.

The present disclosure is directed toward a semi-compliant to non-compliant, conformable balloon useful in medical applications. Conformable balloons of the present disclosure exhibit a low or insignificant straightening force when in a curved configuration and at inflation pressures greater than 4 atm. Balloons of the present disclosure are constructed of material that can compress along an inner length when the balloon is in a curved configuration. In further embodiments, balloons of the present disclosure can be constructed of material that sufficiently elongates along an outer arc when the balloon is in a curved configuration. As a result, medical balloons, in accordance with the present disclosure, when inflated in a curved configuration, exhibit kink-free configurations and do not cause a significant degree of vessel straightening.

The invention provides a method and system for determining the threat degree of a low-altitude flight non-cooperative target to a desired place, and the method comprises the steps: obtaining the continuous coordinate data of the low-altitude flight non-cooperative target in a certain period of time through taking the coordinate of a set desired place as a reference; and determining the threat degree of the flight non-cooperative target to the desired place according to the coordinates of the flight non-cooperative target and the change condition of the coordinates in the continuous time. Threat judgment and auxiliary decision making can be performed on various low, slow and small targets such as an unmanned aerial vehicle, a balloon, a kite, a Kongming lantern and a flying bird which possibly threaten the safety of important targets in a protection area of a desired place; by utilizing the threat determination method provided by the invention, the determined threat generated by the flight non-cooperative target is provided for the command and control system, so that the automation and intellectualization of auxiliary decision of a command information system can be improved, the decision time of a commander is shortened, and the strike efficiency of a defensive system is improved.

The invention provides a stability control method and device based on particle active disturbance rejection, and the method comprises the steps of building an active disturbance rejection controller model based on a tethered balloon system dynamics model and a speed loop control model, wherein the speed loop control model is determined after theoretical modeling is carried out on each executive component of a control system of the tethered balloon system; and optimizing the parameters of the active-disturbance-rejection controller model by adopting a particle swarm search algorithm to determine an optimal active-disturbance-rejection controller model. Aiming at the problems that the tethered balloon system is used as a weak control aircraft, is greatly disturbed by a wind field, is poor in state stability and affects stable imaging of a photoelectric pod, the active-disturbance-rejection controller is optimized by utilizing the particle swarm search algorithm, internal and external disturbance of the photoelectric pod can be effectively isolated, the imaging stability of the photoelectric pod is improved, and the method is of great significance in application in the fields of long-time air parking of aerostats such as tethered balloons, earth observation implementation, monitoring and the like.