Abstract: The present application relates to a stepwise-clamping type valve prosthesis including a frame body and a clamping member. The frame body has a channel allowing blood to flow therethrough. The clamping member includes a first clamping member and a second clamping member. One end of the first clamping member is connected to the frame body, and the other end of the first clamping member is a free end. The second clamping member is connected to the first clamping member. The clamping member has three states in sequence from being restricted to being fully released. In the first state, the first clamping member and the second clamping member are both restricted and restricted. In the second state, the second clamping member is restricted, and the first clamping member extends in a radial direction of the frame body and is capable of reaching a position between a valve leaflet and a heart wall.

Abstract: Provided is a portable automated chest-abdominal compression (CC-AC) device used in confined spaces and a manipulation method thereof, comprising: a compression mechanism having a strap fixing module, a compression plate connected to the strap fixing module and a compression piston arranged on one side of the compression plate; a detection module having a displacement sensor and a pressure sensor; a control module receiving compression depth and pressure, and obtaining a compensation value of time of a single compression according to the compression depth and a target depth, thereby controlling an action of a driving mechanism during the CC process; constructing an abdominal mechanics model according to the compression depth and pressure, and compensating the compression depth according to the target pressure by using the abdominal mechanics model, thereby controlling the action of the driving mechanism during the AC process.

Abstract: Disclosed is a biped robot and multi-configuration robot capable of being spliced autonomously, and a control method of the multi-configuration robot. The biped robot comprises a torso, arms, legs, a tolerance docking sleeve, and a torso docking device. The arms are correspondingly arranged at the left and right sides of the torso, and two legs are arranged at the lower side of the torso. The tolerance docking sleeve is movably arranged at the rear side of the torso through a base, and the torso docking device is fixed to the front side of the torso. Single biped robots in the present disclosure can form a multi-configuration legged combined body in a self-organization and reconstruction mode so as to achieve bipedal, quadrupedal, hexapodal and other multi-legged configurations. The motion stability and the load capacity of the legged robot are improved through the splicing combination of the modular legged robots.

Abstract: Provided is a portable automated chest-abdominal compression (CC-AC) device used in confined spaces and a manipulation method thereof, comprising: a compression mechanism having a strap fixing module, a compression plate connected to the strap fixing module and a compression piston arranged on one side of the compression plate; a detection module having a displacement sensor and a pressure sensor; a control module receiving compression depth and pressure, and obtaining a compensation value of time of a single compression according to the compression depth and a target depth, thereby controlling an action of a driving mechanism during the CC process; constructing an abdominal mechanics model according to the compression depth and pressure, and compensating the compression depth according to the target pressure by using the abdominal mechanics model, thereby controlling the action of the driving mechanism during the AC process.

Abstract: A lighting apparatus includes a bottom housing, a light cover, multiple LED modules and a light source plate. The bottom housing includes a bottom plate. The bottom plate has a first film layer and a substrate layer. The first film layer has a width between 2 ?m and 120 ?m. The light source plate is mounted with the multiple LED modules on a top side of the light source plate. A bottom side of the light source plate faces to the bottom plate and the top side of the light source plate faces to the light cover. A light of the multiple LED modules pass through the light cover.

Abstract: A heart valve prosthesis anchored to an interventricular septum. The heart valve prosthesis includes a valve supporting frame and a fixing device. The valve supporting frame includes a valve stitching section and an artificial valve, and the artificial valve is fixedly connected to the valve stitching section; the fixing device includes a fixing and supporting section and a fixing member, one end of the fixing and supporting section is connected to a proximal end of the valve stitching section, and another end of the fixing and supporting section is connected to the interventricular septum of a patient by the fixing member, to support the heart valve prosthesis and prevent the heart valve prosthesis from axially moving.

Abstract: A servo control method for a multi-joint hydraulic manipulator based on adaptive sliding mode is provided. A motion trajectory of an end of the multi-joint hydraulic manipulator in a workspace is generated, and expected angular displacement, angular velocity and angular acceleration of individual joints are calculated. An actual angular displacement and an actual angular velocity of the individual joints under a current position-pose are calculated. Combined with a dynamic model of the manipulator, a driving force of individual joints is calculated. Based on the expected angular displacement, the actual angular displacement and the driving force, a sliding-mode surface is constructed. The adaptive law is updated to perform adaptive sliding-mode control for the manipulator. A system for implementing the servo control method is also provided.

Abstract: The present application relates to a transcatheter prosthetic valve replacement system including a delivery catheter, a frame, a prosthetic valve, and one or more clamping devices. The prosthetic valve is fixed in the frame. The clamping device is connected to a periphery of the frame. The frame and the clamping device can be preloaded in the delivery catheter. The clamping device includes a clamping member, a collar, and a control member. One end of the clamping member is a fixation end which is fixedly connected to the frame, and the other end of the clamping member is a deployable resilient segment which can be compressed and released. The collar is slidably sleeved on the clamping member. One end of the control member is connected to the collar, and the other end of the control member is manipulated outside the body. From being compressed to being fully released, the clamping member in sequence has two configurations.

Abstract: A lighting apparatus includes a bottom housing, a light cover, multiple LED modules and a light source plate. The bottom housing includes a bottom plate. The bottom plate has a first film layer and a substrate layer. The first film layer has a width between 2 ?m and 120 ?m. The light source plate is mounted with the multiple LED modules on a top side of the light source plate. A bottom side of the light source plate faces to the bottom plate and the top side of the light source plate faces to the light cover. A light of the multiple LED modules pass through the light cover.

Abstract: The present application relates to a separately releasable aortic valve stent, which includes a valve sewing segment, a positioning member, and a prosthetic valve. The prosthetic valve is connected to the valve sewing segment. The valve sewing segment and the positioning member are two independent components and connected to each other via a guiding device. The positioning member is able to be released prior to the valve sewing segment. A slide connection structure is disposed on the valve sewing segment. One end of the guiding device is connected to the positioning member, and another end of the guiding device passed through the slide connection structure is connected to the positioning member. The valve sewing segment is slidable along the guiding device.

Abstract: A preservation method of fresh tremella fuciformis suitable for cold-chain circulation includes pretreatment of fresh tremella fuciformis: selecting fresh tremella fuciformis with no mildew, no rot, no disease and insect pests, and water content?90% to enter subsequent cold-chain circulation; precooling: precooling the pretreated fresh tremella fuciformis put in a cold store at 1° C.-3° C., or performing vacuum precooling on the pretreated fresh tremella fuciformis; packaging, wherein a temperature of a packaging operation room of the fresh tremella fuciformis is less than or equal to 18° C., and time of the fresh tremella fuciformis from entering the packaging operation room to the completion of packaging does not exceed 1 h; storage: storing the packaged fresh tremella fuciformis immediately, controlling a storage temperature to 1° C.-3° C., and performing cold-chain transportation within 24 h; and cold-chain transportation: performing transportation by a refrigerated vehicle or by adding ice packs.

Abstract: A mobile manipulation control method of a quadruped robot with an operation arm, including: obtaining current pose information of the legged mobile manipulator; decomposing a task into subtasks, and prioritizing the subtasks; based on the pose information and a dynamic model, generating a motion trajectory under each subtask; based on the dynamic model, optimizing an optimal plantar force of a supporting leg and an end-of-arm force under each subtask; based on a multi-task spatial projection method, calculating desired control quantity of all joints under different subtasks; and (d) optimizing the optimal plantar force and the desired control quantity with the whole-body dynamic model as a constraint to obtain control torques; and based on the control torques, controlling the legged mobile manipulator's motion. A control system is further provided.

Abstract: A mobile manipulation control method of a quadruped robot with an operation arm, including: obtaining current pose information of the legged mobile manipulator; decomposing a task into subtasks, and prioritizing the subtasks; based on the pose information and a dynamic model, generating a motion trajectory under each subtask; based on the dynamic model, optimizing an optimal plantar force of a supporting leg and an end-of-arm force under each subtask; based on a multi-task spatial projection method, calculating desired control quantity of all joints under different subtasks; and (d) optimizing the optimal plantar force and the desired control quantity with the whole-body dynamic model as a constraint to obtain control torques; and based on the control torques, controlling the legged mobile manipulator's motion. A control system is further provided.

Abstract: The present disclosure discloses a self-adaptive mechanical foot for the legged robot. The mechanical foot has a piston disposed inside a piston cylinder. The piston is connected to one end of each humeral plate, and the piston cylinder is connected to the other end of each humeral plate. The humeral plates perform opening and closing movement through the up-down movement of the piston in the piston cylinder. The humeral plates are connected to toes on the foot and drive the toes to open and close through the up-down movement. The mechanical foot provided by the present disclosure has higher standing stability and fast interaction response speed when interacting with the terrain. It can realize arbitrary and fast switching between a point-like foot and a planar foot, and meanwhile avoids collision between a support leg and a swing leg.

Abstract: Disclosed is a biped robot and multi-configuration robot capable of being spliced autonomously, and a control method of the multi-configuration robot. The biped robot comprises a torso, arms, legs, a tolerance docking sleeve, and a torso docking device. The arms are correspondingly arranged at the left and right sides of the torso, and two legs are arranged at the lower side of the torso. The tolerance docking sleeve is movably arranged at the rear side of the torso through a base, and the torso docking device is fixed to the front side of the torso. Single biped robots in the present disclosure can form a multi-configuration legged combined body in a self-organization and reconstruction mode so as to achieve bipedal, quadrupedal, hexapodal and other multi-legged configurations. The motion stability and the load capacity of the legged robot are improved through the splicing combination of the modular legged robots.

Abstract: A heart valve prosthesis anchored to an interventricular septum. The heart valve prosthesis includes a valve supporting frame and a fixing device. The valve supporting frame includes a valve stitching section and an artificial valve. The artificial valve is fixedly connected to the valve stitching section. The fixing device includes a fixing and supporting section and a fixing member. One end of the fixing and supporting section is connected to a proximal end of the valve stitching section, and another end of the fixing and supporting section is connected to the interventricular septum of a patient by the fixing member, to support the heart valve prosthesis and prevent the heart valve prosthesis from axially moving.

Abstract: A heart valve prosthesis anchored to an interventricular septum. The heart valve prosthesis includes a valve supporting frame and a fixing device. The valve supporting frame includes a valve stitching section and an artificial valve, and the artificial valve is fixedly connected to the valve stitching section; the fixing device includes a fixing and supporting section and a fixing member, one end of the fixing and supporting section is connected to a proximal end of the valve stitching section, and another end of the fixing and supporting section is connected to the interventricular septum of a patient by the fixing member, to support the heart valve prosthesis and prevent the heart valve prosthesis from axially moving.

Abstract: The present application relates to a transcatheter prosthetic valve replacement system including a delivery catheter, a frame, a prosthetic valve, and one or more clamping devices. The prosthetic valve is fixed in the frame. The clamping device is connected to a periphery of the frame. The frame and the clamping device can be preloaded in the delivery catheter. The clamping device includes a clamping member, a collar, and a control member. One end of the clamping member is a fixation end which is fixedly connected to the frame, and the other end of the clamping member is a deployable resilient segment which can be compressed and released. The collar is slidably sleeved on the clamping member. One end of the control member is connected to the collar, and the other end of the control member is manipulated outside the body. From being compressed to being fully released, the clamping member in sequence has two configurations.

Abstract: The present application relates to a stepwise-clamping type valve prosthesis including a frame body and a clamping member. The frame body has a channel allowing blood to flow therethrough. The clamping member includes a first clamping member and a second clamping member. One end of the first clamping member is connected to the frame body, and the other end of the first clamping member is a free end. The second clamping member is connected to the first clamping member. The clamping member has three states in sequence from being restricted to being fully released. In the first state, the first clamping member and the second clamping member are both restricted and restricted. In the second state, the second clamping member is restricted, and the first clamping member extends in a radial direction of the frame body and is capable of reaching a position between a valve leaflet and a heart wall.

Abstract: The present application relates to a separately releasable aortic valve stent, which includes a valve sewing segment, a positioning member, and a prosthetic valve. The prosthetic valve is connected to the valve sewing segment. The valve sewing segment and the positioning member are two independent components and connected to each other via a guiding device. The positioning member is able to be released prior to the valve sewing segment. A slide connection structure is disposed on the valve sewing segment. One end of the guiding device is connected to the positioning member, and another end of the guiding device passed through the slide connection structure is connected to the positioning member. The valve sewing segment is slidable along the guiding device.