Abstract: A method for separating indium oxide and tin oxide from an ITO waste target by a vacuum method disclosed by the present disclosure, which relate to the field of resource recycling and utilization technology. The method Includes: take ITO waste target raw material, add indium to the ITO waste target raw material, heat and hold under vacuum conditions, then the Indium oxide is obtained by the volatilization of the suboxide of indium into the volatile, and the tin oxide is obtained by remaining of the tin oxide in the condensate. The present disclosure is based on the fact that indium oxide can generate volatile suboxide (In2O) when heated in indium melt, and the generated suboxide can evaporate to the condensation zone for condensation, thereby achieving the separation of indium oxide and tin oxide and achieving resource recovery and utilization of ITO waste target materials.

Abstract: An in vivo occlusion and clamping instrument includes a disc-shaped portion, a clamping portion and a flow-blocking portion. The disc-shaped portion is elastically deformable so that the disc-shaped portion has a folded posture in which same can be received in a sheath and a free posture in which same can expand into a disc shape. The clamping portion is fixed on one side surface of the disc-shaped portion, wherein the clamping portion is elastically deformable so that the clamping portion has a folded posture in which same can be received in the sheath and a free posture in which same can be unfolded, the clamping portion, when in the free posture, is pressed against the disc-shaped portion via elasticity so that the clamping portion and the disc-shaped portion can cooperate with each other for clamping and fixing.

Abstract: The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.

Abstract: An in vivo occlusion and clamping instrument includes a disc-shaped portion, a clamping portion and a flow-blocking portion. The disc-shaped portion is elastically deformable so that the disc-shaped portion has a folded posture in which same can be received in a sheath and a free posture in which same can expand into a disc shape. The clamping portion is fixed on one side surface of the disc-shaped portion, wherein the clamping portion is elastically deformable so that the clamping portion has a folded posture in which same can be received in the sheath and a free posture in which same can be unfolded, the clamping portion, when in the free posture, is pressed against the disc-shaped portion via elasticity so that the clamping portion and the disc-shaped portion can cooperate with each other for clamping and fixing.

Abstract: The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.

Abstract: A repair device for treatment of tricuspid regurgitation includes a support frame, an occlusive membrane, and a suture line. The support frame includes a central shaft and anchoring members that are disposed around the central shaft and radially unfolded for anchoring leaflets of a tricuspid valve. The occlusive membrane surrounds connections between the anchoring members and the central shaft, and the occlusive membrane is connected to the support frame through the suture line. A semi-closed space surrounding the central shaft is formed by an outer side wall of the central shaft, the anchoring members and the occlusive membrane, and has a closed end in proximity to a ventricle and an open end in proximity to an atrium. The central shaft has a closed end in proximity to the ventricle. The repair device for treatment of tricuspid regurgitation reduces the number of implants, thereby reducing the side effects caused by implantation.

Abstract: A repair device for treatment of tricuspid regurgitation includes a support frame, an occlusive membrane, and a suture line. The support frame includes a central shaft and anchoring members that are disposed around the central shaft and radially unfolded for anchoring leaflets of a tricuspid valve. The occlusive membrane surrounds connections between the anchoring members and the central shaft, and the occlusive membrane is connected to the support frame through the suture line. A semi-closed space surrounding the central shaft is formed by an outer side wall of the central shaft, the anchoring members and the occlusive membrane, and has a closed end in proximity to a ventricle and an open end in proximity to an atrium. The central shaft has a closed end in proximity to the ventricle. The repair device for treatment of tricuspid regurgitation reduces the number of implants, thereby reducing the side effects caused by implantation.

Abstract: A valve leaflet obstruction repair clip and a repair system thereof include a clamping component and a flow obstruction component. The clamping component and the flow obstruction component are assembled and clamped to fix the incomplete closure between the valve leaflets. The upper clamping arm and the lower clamping arm are engaged together in a natural state, and the upper clamping arm undergoes unilateral movement in an extended state. The present application enables edge-to-edge repair of the valve leaflets and adopts unilateral clamping, effectively preventing the problem of valve leaflet stenosis caused by the implantation of the repair device.

Abstract: A valve leaflet obstruction repair clip and a repair system thereof include a clamping component and a flow obstruction component. The clamping component and the flow obstruction component are assembled and clamped to fix the incomplete closure between the valve leaflets. The upper clamping arm and the lower clamping arm are engaged together in a natural state, and the upper clamping arm undergoes unilateral movement in an extended state. The present application enables edge-to-edge repair of the valve leaflets and adopts unilateral clamping, effectively preventing the problem of valve leaflet stenosis caused by the implantation of the repair device.

Abstract: A leaflet positioning and fixing clip and a narrow-environment orientation system thereof are provided. The clip includes a fixing element, a lower gripping arm assembly sleeved outside the fixing element, an upper gripping arm assembly sleeved outside the lower gripping arm assembly, a pull rope controlling the upper gripping arm assembly to move, and an occlusive film attached below the lower gripping arm assembly. The upper gripping arm assembly includes an upper central fixing plate and upper gripping arms radially distributed around the upper central fixing plate. The lower gripping arm assembly includes a lower central fixing plate and lower gripping arms. There are at least two upper gripping arms mated with at least two lower gripping arms to form grippers for gripping a tricuspid valve. The occlusive film is stably positioned in a center of the tricuspid valve through the grippers.

Abstract: A leaflet positioning and fixing clip and a narrow-environment orientation system thereof are provided. The clip includes a fixing element, a lower gripping arm assembly sleeved outside the fixing element, an upper gripping arm assembly sleeved outside the lower gripping arm assembly, a pull rope controlling the upper gripping arm assembly to move, and an occlusive film attached below the lower gripping arm assembly. The upper gripping arm assembly includes an upper central fixing plate and upper gripping arms radially distributed around the upper central fixing plate. The lower gripping arm assembly includes a lower central fixing plate and lower gripping arms. There are at least two upper gripping arms mated with at least two lower gripping arms to form grippers for gripping a tricuspid valve. The occlusive film is stably positioned in a center of the tricuspid valve through the grippers . A leaflet positioning and fixing clip and a narrow-environment orientation system thereof are provided.

Abstract: A method for comprehensively processing noble lead provided and utilizes two instances of vacuum distillation to realize an open circuit of arsenic, lead, antimony and bismuth and the high-efficiency enrichment of precious metals of gold and silver, and can obtain elemental arsenic, a lead-bismuth-antimony alloy, a silver alloy and a copper alloy, respectively. The lead-bismuth-antimony alloy, the silver alloy and the copper alloy are processed by oxidation refining, electrorefining and chlorination refining to obtain refined lead, refined antimony, antimony trioxide, electrolytic silver and electrolytic copper, and to realize gold enrichment. The entire process has advantages of high metal direct yield, low energy consumption, short flow chart, simple equipment, etc., and vacuum distillation belongs to a physical process in which the alloy can be separated only by means of the difference in saturated vapor pressure between the metals, without generation of wastewater, waste gas and waste residue.

Abstract: A method for comprehensively processing noble lead provided and utilizes two instances of vacuum distillation to realize an open circuit of arsenic, lead, antimony and bismuth and the high-efficiency enrichment of precious metals of gold and silver, and can obtain elemental arsenic, a lead-bismuth-antimony alloy, a silver alloy and a copper alloy, respectively. The lead-bismuth-antimony alloy, the silver alloy and the copper alloy are processed by oxidation refining, electrorefining and chlorination refining to obtain refined lead, refined antimony, antimony trioxide, electrolytic silver and electrolytic copper, and to realize gold enrichment. The entire process has advantages of high metal direct yield, low energy consumption, short flow chart, simple equipment, etc., and vacuum distillation belongs to a physical process in which the alloy can be separated only by means of the difference in saturated vapor pressure between the metals, without generation of wastewater, waste gas and waste residue.