62 results about "Fluid joints" patented technology

The invention provides a microfluidic chip, system and method for osteochondral organs, and relates to the technical field of organoid microfluidic chips, the chip comprises a bone microvascular endothelial cell channel, a bone compartment, a cartilage compartment and a synovial fluid channel which are arranged in parallel and in sequence, and permeation areas between the channel and the compartments and between the compartments. According to the scheme, the complex structure and function of a human osteochondral system are effectively simulated, the physiological and pathological processes of human bone joints can be simulated more truly in an in-vitro environment, and a method for establishing a highly-simulated femoral head necrosis model and osteoarthritis model based on the chip is provided. The problems that a traditional model is insufficient in physiological environment simulation, lack of control over dynamic culture conditions, tedious and time-consuming in the construction process, difficult to support high-throughput experiments and the like are solved.

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 discloses a micro-fluidic chip system for simulating a cartilage mechanical loading environment, and belongs to the technical field of biological micro-fluidic chips. A micro-fluidic chip and a peripheral system are designed according to a biomechanical principle and a micro-fluidic chip technology, and a real cartilage microstructure and a mechanical environment can be simulated. The micro-fluidic chip simulates a real cartilage structure and is used for providing internal synovial fluid pressure. The peripheral system provides a controllable external mechanical environment, internal synovial fluid pressure and external three-dimensional mechanical loading of the chip are controlled through PID feedback, a platform is provided for researching a synergistic effect mechanism of the internal synovial fluid pressure and the external three-dimensional mechanical loading, and the peripheral system can also observe diffusion movement of internal nano-particles in the mechanical environment in real time. The system provides an experimental platform for researching the influence and mechanism of mechanical stimulation on OA cartilage cell functions, avoids the defects of ethical problems and individual differences in previous animal experiments, is simpler and more convenient to operate, lower in cost and shorter in experimental period, and provides a scientific basis for researching the influence of mechanical loading on cartilage repair.

The utility model discloses a self-locking quick-change fluid connector, and belongs to the technical field of new energy automobile parts, the self-locking quick-change fluid connector comprises a connecting male head and a connecting female head, the outer surface of the connecting male head is provided with a limiting groove, the surface of the connecting female head is provided with a positioning opening, and the positioning opening is provided with a positioning locking plate through an elastic piece; and when the connecting male head is butted with the connecting female head, the positioning opening corresponds to the limiting groove, and the elastic piece drives the positioning locking plate to partially penetrate through the positioning opening to be embedded into the limiting groove. The combined connecting mode is further optimized, after the connecting male head is inserted into the connecting female head, the positioning locking plate is clamped into the limiting groove of the connecting male head to form limiting, the structure can achieve rapid combination without precise alignment, separation is achieved through one-key pressing during separation, and the requirement for the operation space is low.

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.

The invention relates to the technical field of mechanism design, and discloses a case of a server, a liquid cooling system and a cabinet. The case of the server comprises a case body, a cover plate is arranged on one side of the case body and comprises a cover plate main body and a sub-cover body, a notch is formed in the side, close to a rear window of the case body, of the cover plate main body, the sub-cover body is detachably arranged at the notch, and the distance between the sub-cover body and a first wall of the case body is larger than the distance between the cover plate main body and the first wall. The first wall is opposite to the cover plate; and the liquid cooling blind plug is arranged at the rear window of the box body, is positioned between the sub-cover body and the first wall, and can float along the radial direction and / or the axial direction of the liquid cooling blind plug. According to the case provided by the embodiment of the invention, the risk that the liquid cooling blind-plug connector collides with the cover plate of the case body in the floating process can be reduced, the floating range of the liquid cooling blind-plug connector is enlarged, the connection between the liquid cooling blind-plug connector and the fluid connector on the cabinet is more reliable, and the structural strength of the rear window of the case body and the cover plate main body can be improved.

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 invention discloses a method for preparing a Pickering emulsion bionic synovial fluid of Chinese herbal volatile oil, and relates to the technical field of biolubricants. The method comprises: adding nanoparticles to ultrapure water, and ultrasonically dispersing to obtain a nanoparticle dispersion; adding Chinese herbal volatile oil to the nanoparticle dispersion according to a certain volume fraction, and ultrasonically stirring to obtain a Pickering emulsion bionic synovial fluid of Chinese herbal volatile oil. The Pickering emulsion bionic synovial fluid of Chinese herbal volatile oil prepared by the invention has excellent friction reduction and anti-wear properties at the interface of artificial joints and articular cartilage, and can effectively remove active oxygen free radicals in the environmental system, and can inhibit and alleviate the onset of osteoarthritis from the two aspects of controlling mechanical stress and reducing oxidative stress.

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 invention discloses a fluid joint, a fluid connector and a liquid cooling conveying system.The fluid joint comprises a valve seat, a spherical valve element and a transmission assembly, the valve seat is provided with a butt joint end face and 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 protruding driving part, and a guide groove is formed in the butt joint end face in a circumferential extending mode with the butt joint end opening as the circle center. The spherical valve element is provided with a rotating shaft part, the spherical valve element 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 outer side of the valve seat, and the spherical valve element rotates to close or open the fluid channel; the transmission assembly is movably located at the position corresponding to the guide groove and is in transmission connection with the outer end of the rotating shaft part. It can be understood that in the rotating assembly and disassembly process of the two fluid connectors, the driving parts of the two fluid connectors act on the transmission assemblies of each other in the rotating process, all the transmission assemblies drive the spherical valve element to rotate through the rotating shaft part, and the spherical valve element opens and closes the fluid channel through rotation.

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.