50 results about "Fluid joints" patented technology

A medical pad for exchanging thermal energy between a targeted temperature management (TTM) fluid and a patient is disclosed. The pad can include a fluid containing layer and a fluid conduit attached therewith via rotatable joint where the joint is configured to facilitate rotation of the fluid conduit with respect to the pad. A method of manufacturing the pad can include coupling a first member of the rotatable joint to a fluid delivery line, coupling the second member to the fluid containing layer, and inserting the first member within an opening of the second member to facilitate a snap-fit retention mechanism between first member and the second member. A method of using the pad can include rotating the fluid delivery line relative to the thermal pad via the rotatable joint when initially applying the pad to the patient or when adjusting an orientation of the pad on the patient.

The invention relates to the technical field of online detection and analysis, and discloses a bone joint synovial fluid detection and analysis system based on microfluidics, which specifically comprises the following steps: acquiring synovial fluid rheological data and synovial fluid molecular activity data in a bone joint movement process and cartilage surface morphological data in a joint buckling process through a biosensor; constructing a synovial fluid dynamic anomaly analysis model, and performing synovial fluid function anomaly analysis through the synovial fluid rheological data and the molecular activity data; a cartilage stress anomaly analysis model is constructed, and cartilage stress anomaly analysis is carried out through cartilage surface morphological change data; obtaining a synovial fluid function abnormality analysis result and a cartilage stress abnormality analysis result to carry out bone joint function adaptability analysis; and acquiring a bone joint function adaptability analysis result and carrying out synovial fluid function abnormality analysis early warning. The problem that in the prior art, due to the fact that the bionic degree of a detection strategy is insufficient and bone joint dynamic parameters are deficient, the association degree of a static synovial fluid detection result and the actual joint rehabilitation condition of a patient is poor is solved.

The invention discloses a self-locking fluid connector structure with a function of uniformly distributing locking force and unlocking force, and belongs to the technical field of fluid pipeline connecting pieces. Which comprises a male plug mechanism, a female plug mechanism, a male and female plug locking and unlocking mechanism and a fluid pipeline connector, and is characterized in that the male and female plug locking and unlocking mechanism comprises a lock ring, a reset spring, an unlocking sliding sleeve, an unlocking sliding sleeve limiting piece and a set of locking and unlocking pin rollers, the lock ring is arranged on the female plug mechanism, the reset spring is arranged outside the female plug mechanism in a sleeving mode, and the unlocking sliding sleeve limiting piece is arranged on the unlocking sliding sleeve limiting piece. The unlocking sliding sleeve is arranged outside the female plug mechanism through the unlocking sliding sleeve cavity, the left end of the unlocking sliding sleeve cavity is provided with an unlocking sliding sleeve left-right displacement stroke limiting rib, the unlocking sliding sleeve limiting piece is embedded in the female plug mechanism, and the number of the locking and unlocking pin rollers in one set is three. The method has the advantages that the operation balance and convenience are embodied; the problems of looseness, vibration and deflection in a locking state due to inconsistent stress and loss of rapidness and convenience in unlocking are avoided; and the rationality of the structure is well reflected.

A medical pad for exchanging thermal energy between a targeted temperature management (TTM) fluid and a patient is disclosed. The pad can include a fluid containing layer and a fluid conduit attached therewith via rotatable joint where the joint is configured to facilitate rotation of the fluid conduit with respect to the pad. A method of manufacturing the pad can include coupling a first member of the rotatable joint to a fluid delivery line, coupling the second member to the fluid containing layer, and inserting the first member within an opening of the second member to facilitate a snap-fit retention mechanism between first member and the second member. A method of using the pad can include rotating the fluid delivery line relative to the thermal pad via the rotatable joint when initially applying the pad to the patient or when adjusting an orientation of the pad on the patient.

There is disclosed fluid distribution junctions and methods of assembly therefor. Flexible conduits connect to the junctions, and a consumable subsystem of the junction, conduits and receptacle caps or other connectors may be pre-assembled for ease of use. A subassembly is formed by coupling a plurality of flexible tubular conduits to a plurality of fluid connectors of a fluid junction, the fluid junction having an inner fluid plenum chamber leading to the fluid connectors. Two shells are sandwiched on opposite sides of the subassembly, the shells having mating concave receiving surfaces that together conform around each of the fluid connectors and clamp the tubular conduits onto the circular beads. Juxtaposed joint surfaces on each pair of mating concave receiving surfaces are bonded together such as with sonic welding to make the fluid distribution junction assembly.

The utility model relates to a piston type energy accumulator which is provided with an energy accumulator shell (10), a separating piston (12) can be guided in the energy accumulator shell in a longitudinal displacement mode, the piston type energy accumulator is provided with a damping piston (18) with a check valve (20), and the damping piston can move into a fluid connector (24) in the energy accumulator shell under the condition that a throttling gap (22) is formed. The throttle gap is a cylindrical annular space which is formed by adjacent walls (28, 32) of the energy store housing and the damping piston, and the check valve has a valve ball (36) which is loaded by the energy store, a damping valve (68) which, in the closed position thereof, blocks a fluid path between the fluid connection and a piston fluid chamber (38) located between the separating piston and the accumulator housing and, in the open position thereof, releases the fluid path, the damping valve (68) being located in the region of an internal thread (26) of the fluid connection and having a longitudinally displaceable valve plate (70), an orifice (72) is introduced into the valve plate coaxially to a longitudinal axis (60) of the piston accumulator.

The application relates to a sealing test device, comprising a supporting assembly, a clamping assembly and a fluid joint. The supporting assembly is used for supporting the clamping assembly and a bipolar plate; the clamping assembly is arranged between the supporting assembly and the bipolar plate and is used for clamping the end of a fluid channel on the bipolar plate; and the fluid joint is connected with the clamping assembly and abuts on the bipolar plate and is used for ventilating the fluid channel. Through cooperation of the supporting assembly and the clamping assembly, accurate positioning of the bipolar plate is realized, the planarity of a test assembly is guaranteed, the test device can be applied to bipolar plates of various sizes, and the applicability of the test device is improved; the clamping assembly provides a sealed space for the fluid joint and the bipolar plate, leakage of a test fluid is avoided, and the accuracy of a test result and the convenience of a test process are improved.

A temporomandibular joint replacement system includes an insert configured to be disposed on an articular surface of a temporomandibular joint, a biocompatible fluid including a synthetic synovial fluid, a porous condyle configured to contain the biocompatible fluid and to be disposed on an opposing surface of the temporomandibular joint, and a sensor disposed along a top surface of the insert.

Disclosed are methods for detecting extracapsular synovial fluid or components thereof as a marker for initiation of processes that lead to degenerative joint disease in a subject.

The invention relates to the field of pipe joints with quick cut-off devices, in particular to a fluid joint and an automatic quick joint assembly. When the fluid connectors are connected with an adaptive connector in an inserted mode, the valve element pushing sleeve can be pushed backwards and drive the spherical valve element to move and roll over, steering of a valve element channel is achieved, conduction is achieved after the two fluid connectors are connected in place, and on the contrary, when the fluid connectors and the adaptive connector are pulled out and separated, the valve element pushing sleeve can be pushed backwards to drive the spherical valve element to move and roll over. When the two fluid connectors are connected, the valve element pushing sleeve is not pushed backwards any more, the elastic maintaining structure pushes the spherical valve element to reset forwards and roll over, steering of a valve element channel is achieved, and the valve elements in the two connectors can be closed when the two fluid connectors are disconnected, that is, opening and closing of the valve elements in the two fluid connectors are achieved while the two fluid connectors are connected and separated. Operation is simple, and use is convenient.

The invention discloses a fluid joint capable of preventing a sealing ring from being separated through operation under pressure and a method for preventing the sealing ring from being separated. The problem that in the prior art, a sealing ring is prone to being separated when a fluid joint is inserted and pulled under high pressure is solved. The fluid connector capable of preventing the sealing ring from disengaging through operation under pressure comprises a plug and a socket, a valve rod is arranged in the socket, a sealing ring installation groove used for limiting a first sealing ring is formed between the valve rod and the plug, and a plurality of through channels are formed in the sealing ring installation groove. Through the arrangement of the through channel, the through channel is formed in the groove side of the sealing ring which is finally released from sealing and the corresponding position in the plugging process of the plug and the socket, a negative pressure area is formed when fluid passes through, the anti-disengagement performance of the sealing ring is effectively improved through the negative pressure effect, and under-pressure plugging and unplugging under the effect of large pressure difference are achieved; in addition, pressure balance between the fluid plug and the socket can be realized in advance, and the pressure difference is reduced, so that the effect of preventing the sealing ring from being separated from the groove is improved.

The utility model discloses a self-locking fluid connector structure with a function of uniformly distributing locking force and unlocking force, and belongs to the technical field of fluid pipeline connecting pieces. Which comprises a male plug mechanism, a female plug mechanism, a male and female plug locking and unlocking mechanism and a fluid pipeline connector, and is characterized in that the male and female plug locking and unlocking mechanism comprises a lock ring, a reset spring, an unlocking sliding sleeve, an unlocking sliding sleeve limiting piece and a set of locking and unlocking pin rollers, the lock ring is arranged on the female plug mechanism, the reset spring is arranged outside the female plug mechanism in a sleeving mode, and the unlocking sliding sleeve limiting piece is arranged on the unlocking sliding sleeve limiting piece. The unlocking sliding sleeve is arranged outside the female plug mechanism through the unlocking sliding sleeve cavity, the left end of the unlocking sliding sleeve cavity is provided with an unlocking sliding sleeve left-right displacement stroke limiting rib, the unlocking sliding sleeve limiting piece is embedded in the female plug mechanism, and the number of the locking and unlocking pin rollers in one set is three. The method has the advantages that the operation balance and convenience are embodied; the problems of looseness, vibration and deflection in a locking state due to inconsistent stress and loss of rapidness and convenience in unlocking are avoided; and the rationality of the structure is well reflected.

Female Fluid Connection Element and Associated Fluid Connection: This female fluid connection element (100) (R) is designed to be connected to a Schrader-type male fitting (10) with a threaded tubular portion (16). The female element (100) comprises a main body (110), which provides a distal opening (112) for receiving the male fitting in an engaged position, and an adapter (120), which is designed to be secured to a pipe and is assembled to the main body. A locking mechanism (140), which is received in a housing (118) radially formed in the main body, provides a through opening (145) for receiving the male element in the engaged position.A locking stop (170) is guided in the main body (110) and extends into the housing (118) and the opening (145) of the lock, so as to allow movement of the lock between a locked position and an unlocked position, while preventing movement beyond the locked position. See Figure 1 for abbreviations.

The utility model provides a hybrid rotating joint and an electro-hydraulic reel, relates to the field of rotating joints, and adopts the scheme that the hybrid rotating joint comprises a rotating shaft, a fluid joint rotor and a fluid joint stator, the fluid joint rotor is coaxially connected with one end of the rotating shaft, and the fluid joint stator is coaxially connected with the other end of the rotating shaft; the fluid connector rotor is rotatably arranged in the fluid connector stator, an output hole and a backflow hole are formed in the fluid connector stator, an output channel and a backflow channel are formed in the fluid connector rotor, and the output channel and the backflow channel each comprise an annular groove formed in the outer circle face of the fluid connector rotor. The annular groove of the output channel is communicated with the output hole, and the annular groove of the backflow channel is communicated with the backflow hole. The cable and pipeline collecting and releasing device can collect and release cables and pipelines at the same time, and use of two kinds of reels is avoided.

The present application relates to a kind of quick measurement system of leakage rate of fluid joint for industrial connection, wherein the system includes: volume control module, including the cylinder of the cavity with cylindrical structure and the piston valve installed in cylinder, the piston valve is connected with the piston rod of servo cylinder;When the cavity volume of the cylinder changes during measurement, the piston valve is subjected to the thrust of one side under the action of pressure and slightly moves to this side, the piston valve generates slight gap, air flows into the side of volume increase, until the pressure difference of the left and right sides of cylinder generates the pressure less than the spring force of piston valve, the internal pressure balance of cylinder is realized.The present application also relates to a corresponding method.Using the quick measurement system of leakage rate of fluid joint for industrial connection and its method of the present application, the measurement efficiency is high, the cost is low, it is suitable for the quick detection of leakage rate of most fluid joints, very convenient large-scale popularization and application.

The present disclosure describes a field flow fractionator comprising: (1) a top plate assembly including a first non-corrosive material, at least three fluid fittings machined in the first non-corrosive material, a top cavity machined in the first non-corrosive material, and at least one top plate O-ring configured to form the horizontal geometry of a separation channel; (2) a membrane; and (3) a bottom plate assembly including a second non-corrosive material, a bottom cavity machined in the second non-corrosive material, a frit configured to be disposed in the bottom cavity, and at least one bottom plate O-ring configured to seal the bottom plate assembly to the top plate assembly, wherein a top surface of the second non-corrosive material and a top surface of the frit are machined to be coplanar; and (4) the top plate assembly, membrane, and bottom assembly define a separation channel.

The invention relates to the technical field of analytical instruments, in particular to a fluid connector and an analytical instrument system.The fluid connector comprises a clamping piece, a matching sleeve and a driving nut; the clamping piece is provided with a first axial inner hole allowing the first pipeline to penetrate through, and the clamping piece is in threaded connection with the second pipeline. The matching sleeve is sleeved on the clamping piece; the driving nut is in threaded connection with the clamping piece; wherein the clamping piece and the matching sleeve are connected through conical surface structures which are matched with each other; the driving nut is configured to drive the matching sleeve to axially move when the driving nut rotates, and the clamping piece is radially shrunk through matching of the conical surface structure, so that the first pipeline is clamped. According to the fluid connector, through cooperation of the conical surface structures, the clamping piece generates radial shrinkage, and large radial clamping force can be provided for the first pipeline, so that clamping of the first pipeline is achieved, axial displacement of the first pipeline under high pressure is prevented, and then the sealing reliability and operation stability of an analytical instrument system are improved.

Fluid dispensing joints and methods of assembling the same are disclosed. Flexible conduits are connected to the joint, and consumable subsystems, conduits, and container lids or other connectors of the joint can be pre-assembled for use. A subassembly is formed by a plurality of fluid connectors coupling a plurality of flexible tubular conduits to a fluid joint having an internal fluid plenum leading to the fluid connectors. Two housings are sandwiched on opposite sides of the subassembly, the housings having mating concave receiving surfaces that collectively fit each fluid connector and clamp the tubular conduit onto the circular flange. The side-by-side joining surfaces on each pair of mating concave receiving surfaces are joined together by means of acoustic welding or the like to make the fluid dispensing joint assembly.

This invention provides an exercise assistance device that assists the user in moving their hip joint in multiple directions, thereby improving the effects of increased synovial fluid, stretching, and muscle training. [Solution] The exercise assist device comprises a base that is placed on the floor, a seat on which the user sits, and legs connecting the base and the seat, the legs having at least one of a first connecting portion that rotatably connects the lower end to the base and a second connecting portion that rotatably connects the upper end to the seat.

A medical device includes a needle, a syringe, and a probe assembly respectively connected to a main body. The syringe may include a cavity in fluid communication with a bore through a shaft of the needle and is configured to draw a fluid into the cavity through the needle. The probe assembly may include a probe that is movable through the bore.

The application discloses a fluid joint, a fluid connector and a liquid cooling delivery system, wherein the fluid joint comprises a valve seat, a spherical valve core and a transmission assembly, the valve seat is provided with a butt joint end face, the valve seat is provided with a fluid channel, and a butt joint port is formed in the butt joint end face; the butt joint end face is provided with a convex driving part, and a guide groove is circumferentially arranged with the butt joint port as the center; the spherical valve core is provided with a rotating shaft part, the spherical valve core is arranged in the fluid channel, the rotating shaft part is rotationally connected with the side wall of the valve seat and extends to the outside of the valve seat, and the spherical valve core is rotated to close or open the fluid channel; and the transmission assembly is movably arranged at the position corresponding to the guide groove and is in transmission connection with the outer end part of the rotating shaft part. It can be understood that, during the rotating assembly and disassembly of two fluid joints, the driving parts of the two fluid joints act on the transmission assemblies of each other during the rotation, each transmission assembly drives the spherical valve core to rotate through the rotating shaft part, and the spherical valve core is rotated to open and close the fluid channel.

The present application relates to the technical field of marine equipment modeling simulation, and provides an anchor chain parameterized modeling method and system based on multi-body-fluid joint simulation, which comprises: equivalent actual anchor chain to a plurality of anchor chain balls; by means of constant speed towing hydrodynamic simulation, the viscous resistance of the actual anchor chain section is calculated; the same equivalent anchor chain section is simulated under the same towing working condition, and the viscous resistance of the equivalent anchor chain section is calculated; the anchor chain ball radius is corrected through consistency verification; the density of the anchor chain ball is calculated based on the number and radius of the anchor chain ball; the anchoring water depth, mooring radius and seabed lying anchor chain section length of the actual anchor chain are obtained, and the initial position of each anchor chain ball is determined in combination with the anchor chain ball spacing; the model of the seabed and its irregular structures is created, and multi-body-fluid dynamics joint simulation under the action of gravity is carried out in combination with the radius, density and initial position of each anchor chain ball. The problems of low parameterization degree and poor adaptability of the mooring anchor chain lumped mass modeling method are solved.

The present application provides a dual-mode fluid connector, which comprises a hollow connector, a raw material pipe, a cleaning pipe, a head, a tail, a push rod and a rotatable part. The hollow connector has a cavity inside. The raw material pipe is located on the hollow connector and communicates with the cavity. The cleaning pipe is located on the hollow connector and communicates with the cavity. The head is located at one end of the hollow connector and comprises a connecting port. The connecting port can be detachably connected to a raw material container. The tail is located at the other end of the hollow connector and comprises a through hole. The outer surface of the tail is provided with a track and a barrier wall. The barrier wall is located at one side of the end of the track. The push rod is inserted into the cavity through the through hole and comprises a rod head and a sealing part. The rotatable part covers the tail and contacts the push rod and comprises a guide. The dual-mode fluid connector can be connected to a pipeline conveying cleaning liquid by the cleaning pipe, so that the dual-mode fluid connector does not need to be detached from the raw material container during cleaning.

The utility model relates to a fluid joint structure and an air tightness test system, a joint main body in the fluid joint structure is provided with a first accommodating cavity and a second accommodating cavity, and the first accommodating cavity is communicated with the second accommodating cavity; the first accommodating cavity is communicated with a water nozzle; the first sealing piece is located in the first containing cavity, and the first sealing piece is used for sealing the joint between the first containing cavity and the water nozzle; the tightness adjusting assembly is fixedly arranged in the second containing cavity and communicates with the first containing cavity. The tightness adjusting assembly is used for inserting or pulling out the connecting pipe and adjusting the tightness of the inserted or pulled-out connecting pipe, so that the sealing connection between the connecting pipe and the water nozzle is realized, the sealing effect is improved, the fixing strength of the connecting pipe is enhanced, the sealing stability between the joint and the water nozzle is improved, and the air leakage of the joint is reduced; the air tightness testing efficiency and the testing reliability of the liquid cooling plate are improved, the mounting and dismounting structure is simple, and the operation is convenient.

A fluid distribution joint and a method for assembling the same are disclosed. Flexible conduits are connected to the joint, and the consumable subsystems, conduits, and receptacle caps or other connectors of the joint may be pre-assembled for ease of use. A subassembly is formed by coupling a plurality of flexible tubular conduits to a plurality of fluid connectors of the fluid joint, and the fluid joint has an internal fluid plenum chamber connected to the fluid connectors. Two shells are sandwiched on either side of the subassembly, and the shells fit integrally around each fluid connector and have mating recessed receiving surfaces that clamp the tubular conduits onto circular beads. The joint surfaces juxtaposed on each pair of mating recessed receiving surfaces are joined to each other by means of ultrasonic welding or the like to produce a fluid distribution joint assembly.

The invention provides a spraying device for cleaning colloidal dirt in a pipeline. The spraying device comprises a pipe inserting component and a fluid source connecting cover. The cannula component comprises an inner tube, an outer tube and a tip part; a first fluid joint and a second fluid joint are formed on the fluid source connecting cover; the first fluid source connector is used for being connected with a first fluid source, and the second fluid source connector is used for being connected with a second fluid source. First fluid enters the fluid source connecting cover through the first fluid source connector, then enters the first fluid space through the upper end of the inner pipe, flows through the notches, is sprayed out of the annular gap and is sprayed to the inner wall of the pipeline, and a retaining wall is formed; second fluid enters the fluid source connecting cover through the second fluid source connector, then enters the second fluid space through the upper end of the outer pipe, is sprayed out through the hole channel, enters the pipeline and then is blocked by the blocking wall to flow upwards, and therefore colloidal dirt located above the hole channel is pushed upwards to be discharged.

Fluid coupling systems can include a latching mechanism to releasably latch together two fluid handling devices in an operative arrangement. Such latching mechanisms can include collet connection mechanisms. For example, this document describes fluid couplings with collet connection mechanisms that are adapted to couple with a fluid fitting of a mated fluid coupling quickly and conveniently. Such fluid fittings can include, but are not limited to, a barbed fitting or a sanitary fitting.

To provide an internal-surface grinding wheel for grinding an internal surface of a precision component.SOLUTION: A deformed grinding wheel (1) is fixed to a tube (2) with a clap (3); a rotating body (4) to which a permanent magnet (5) is attached is attached; a fluid joint (6) and a fluid tap (7) are attached to the tube (2); the deformed grinding wheel is inserted into a portion to be ground; high-pressure air or liquid is inserted into the fluid joint (6); and the deformed grinding wheel (1) is inflated, and the fluid cock (7) is closed. When direct rotation is carried out, the fluid joint (6) is fixed to a rotary raising / lowering mechanism such as a boring machine; when direct rotation cannot be carried out, an external stator is driven by a drive power source, and grinding is carried out by moving and rotating a traveling-mechanism external stator. Since a screw groove is provided at the tip part of the deformed grinding wheel and the fluidity of an abrasive can be secured, fluidizing equipment for the abrasive is not required.SELECTED DRAWING: Figure 1

Fluid coupling systems can include a latching mechanism to releasably latch together two fluid handling devices in an operative arrangement. Such latching mechanisms can include collet connection mechanisms. For example, this document describes fluid couplings with collet connection mechanisms that are adapted to couple with a fluid fitting of a mated fluid coupling quickly and conveniently. Such fluid fittings can include, but are not limited to, a barbed fitting or a sanitary fitting.