35results about How to "Control infusion speed" patented technology

The invention provides a smart drip controller. The drip controller includes a hollow case body. An opening is arranged on one side of the hollow case body. A regulating block is vertically and fixedly arranged on the upper part of the inner wall of the hollow case body. A through groove passing through the regulating block is vertically arranged on the regulating block and is used for accommodating an infusion tube.A first through hole is rectangular, is arranged on the lateral side of regulating block and communicates with the through groove. A groove is arc-shaped and is vertically arrangedon the lateral side of the through groove, wherein the lateral side of the through groove is opposite to the first through hole. A pair of baffles are symmetrically arranged at both sides of the groove. A supporting block is vertically and fixedly arranged in the middle of the inner wall of the case body. A supporting groove is vertically arranged on the top surface of the supporting block. A pair of supporting plates are symmetrically arranged on the supporting groove. An arc-shaped groove is arranged on the opposite side of each of the supporting plates and both of the arc-shaped grooves are corresponding in position forming a hollow cylindrical structure. A second through hole is rectangular and is arranged on the bottom side of the supporting block. A dynamic mechanism is vertically arranged on the inner wall of the case body. The output end of the dynamic mechanism is corresponding in position with the first through hole. The invention also provides a control method of the smartdrip controller.

The invention relates to a portable transfusion device and belongs to the field of medical instruments. A main body is arranged on a base, a left boss with an inlet hole, a right boss with an outlet cavity and an upper outlet hole and at least two body tables which are sequentially reduced in diameters from left to right are arranged on the main body, an upper inlet cavity and the upper outlet hole are arranged on the body tables, an air bag and a medicine bag are arranged in a bag cavity of the main body, a flow valve and a needle are arranged on a medicine bag transfusion tube, the air bag is communicated with the upper outlet hole through an air conveying pipe, a deflation valve is arranged on the air conveying pipe; a left cavity with a lower inlet hole, a right cavity with a lower outlet hole and a body cavity are arranged on the base, the body cavity is provided a lower inlet cavity and a lower air outlet hole; the upper and lower inlet and outlet cavities and valve sheet thereinform upper and lower inlet and outlet valves; the left boss is arranged in the left cavity, the right boss is arranged in the right cavity, the body tables press a driver in the body cavity, the driver consists of two piezoelectric vibrators and a washer arranged between the vibrators; the driver, a seal ring, the main body and the base respectively constitute upper and lower compression cavitieswhich are connected in parallel after being connected in series.

The invention relates to a piezoelectric stack-driven transfusion device, which belongs to the field of medical equipment. The top of the base is provided with an inlet hole, a cavity communicating with the outlet hole through the outlet cavity, and at least two body cavity groups composed of body cavities; only one body cavity in each body cavity group is provided with an inlet cavity and an air outlet hole, and the other body cavities are only provided with Ventilation hole; the main body crimps the diaphragm on the base, and the bottom of the main body is provided with guide hole groups and guide holes equal to the body cavity group and the number of body cavities contained therein. The guide holes are equal in diameter to the body cavity and symmetrically arranged on both sides of the diaphragm. It forms a compression chamber with the body cavity and the inlet valve; the compression chambers in the same body cavity group are connected in parallel to form a compression chamber group, and each compression chamber group is connected in series; the piezoelectric stack in the guide hole presses the piston on the diaphragm; the cavity on the top of the main body is equipped with A medicine bag composed of a medicine chamber and an air chamber; the air chamber communicates with the outlet hole through the air delivery pipe, and a flow valve and a needle are installed on the infusion pipe of the medicine chamber; The diaphragm deforms in the opposite direction.

The invention relates to a portable transfusion device, which belongs to the field of medical instruments. The base is provided with an inlet hole, at least two sink cavity groups composed of sink chambers, an outlet cavity and an air storage chamber, and the number of sink chambers contained in each sink cavity group decreases in turn from left to right; There are inlet and outlet holes on the sink cavity on the side, and inlet and outlet holes on the other sink cavity; the inlet and outlet cavity and the valve plates installed in it constitute the inlet and outlet valves respectively; the main body is installed on the base and the diaphragm is crimped on the base The guide hole of the main body and the sink cavity of the base are symmetrically arranged on both sides of the diaphragm, and the piezoelectric stack in the guide hole crimps the T-shaped piston on the diaphragm; the diaphragm crimps the sealing ring in the sink cavity to form a compression chamber; the same The compression chambers in the sink chamber group are connected in parallel to form a compression chamber group, and each compression chamber group is connected in series; the top of the main body is provided with a chamber with an air bag and a medicine bag, and a flow regulating valve and a needle are arranged on the liquid outlet pipe of the medicine bag, and the air bag inlet pipe It is connected with the air storage chamber, and an on-off valve and an air release valve are arranged on the intake pipe of the air bag.

The invention relates to a medicine injector driven by a piezoelectric sheet, which belongs to the field of medical equipment. The top of the main body is equipped with a syringe with an auxiliary piston and a cylinder chamber. The main piston separates the cylinder chamber into left and right cylinder chambers; the main piston push rod protrudes from the left wall of the cylinder chamber and leans against the auxiliary piston push rod; the bottom of the main body There are upper air intake holes, bosses and multiple round table groups; the top of the box is equipped with lower air inlet holes, holes, an air storage chamber connected to the lower outlet cavity, and body cavity groups that are equal to the number of round table groups and the number of round tables contained in them. and the body cavity; the main body is installed on the box body, and the boss is placed in the cavity to connect the upper and lower outlets and the air storage chamber; the round table presses the driver in the body cavity through the sealing ring to form the upper and lower compression chambers. The upper and lower compression chambers are connected in parallel to form upper and lower compression chamber groups, and each upper compression chamber group and each lower compression chamber group are connected in series to form upper and lower compression units; The valve is connected with the air storage chamber.

The invention relates to a piezoelectric stack-driven medicinal liquid injection device, which belongs to the field of medical instruments. A syringe is installed on the main body, and a cylinder chamber and a guide hole are provided. The cylinder chamber piston divides the cylinder chamber into left and right chambers. From right to left, the number of sink chambers, outlet chambers, and gas storage chambers are increasing; the leftmost sink cavity in each sink cavity group is equipped with inlet and outlet holes, and other sink chambers are equipped with inlet and outlet holes. The valve plate is installed in the inlet and outlet chambers; the main body is installed on the base and a diaphragm is pressed between them, the piezoelectric stack in the guide hole crimps the top block on the diaphragm, and the diaphragm crimps the sealing ring in the sink chamber to form a compression chamber; The compression chambers in the same sink chamber group are connected in parallel to form a compression chamber group, and each compression chamber group is connected in series; the left and right chambers are connected to the gas storage chamber through an air pipe and a reversing valve; during work, the deformation direction of the diaphragm in the same compression chamber group is the same. The deformation directions of the diaphragms in adjacent compression cavity groups are opposite.

The invention relates to a transfusion device driven by a piezoelectric stack, which belongs to the field of medical equipment. The base is provided with an entrance and exit hole, an exit cavity and at least two sinking cavities with different diameters. The diameters of the sinking cavity decrease successively from left to right. The installed valves constitute the inlet and outlet valves; the bottom of the main body is provided with guide holes equal in number and diameter to the sink cavity, the main body is installed on the base and the diaphragm is crimped on the base, and the guide holes and the sink cavity are symmetrically arranged on both sides of the diaphragm ; The piezoelectric stack in the guide hole crimps the piston on the diaphragm; the diaphragm crimps the sealing ring in the sink cavity to form a series of compression chambers; The end of the side wall is equipped with a baffle; the liquid outlet pipe of the medicine bag is provided with a flow regulating valve and a needle; In , the deformation directions of the diaphragms in two adjacent compression chambers are opposite.

The invention relates to a portable drug injector, which belongs to the field of medical equipment. The top of the main body is equipped with a syringe and a cylinder chamber. The main piston divides the cylinder chamber into left and right chambers. The push rod of the main piston protrudes through the left wall of the cylinder chamber and leans against the push rod of the auxiliary piston; the main body is installed on the box. The left and right bosses of the main body are respectively placed in the left and right sinking cavities of the box, and the upper inlet and outlet holes of the main body are respectively connected with the upper inlet and outlet holes of the box; the body platform of the main body crimps the driver to the body cavity of the box through a sealing ring The upper and lower compression chambers are formed inside and the diameter of the upper and lower compression chambers gradually decreases from left to right. The upper and lower compression chambers are connected in series and then in parallel; the transducer is composed of two piezoelectric vibrators and a gasket in the middle, and the piezoelectric vibrator is composed of a It is bonded with the piezoelectric sheet; during work, the deformation directions of the two piezoelectric vibrators in the same transducer are the same, and the deformation directions of the piezoelectric vibrators in the left and right adjacent drivers are opposite; The valve is connected, and the reversing valve is connected with the gas storage chamber through the gas delivery pipe.

The invention relates to a drug delivery device driven by gas stepwise compression, which belongs to the field of medical equipment. The main body is equipped with a syringe and a cylinder chamber. The main piston in the cylinder chamber divides the cylinder chamber into left and right chambers. The main piston push rod protrudes through the left wall of the cylinder chamber and leans against the push rod of the auxiliary piston of the syringe; the main body is installed in the On the base, the small boss of the main body is placed in the cavity of the box body. The boss of the main body is crimped in the body cavity of the base through the sealing ring. The driver is composed of two piezoelectric vibrators and ring gaskets. The piezoelectric vibrator consists of The substrate and the piezoelectric sheet are bonded together; the driver and the sealing ring form the upper and lower compression chambers with the main body and the base respectively. unit, the upper and lower compression units are connected in parallel; the left and right chambers are connected to the gas storage chamber through the air pipe and reversing valve; during operation, the deformation direction of the piezoelectric vibrator in the same body cavity group is the same, and the deformation direction of the piezoelectric vibrator in two adjacent body cavity groups is opposite .

The invention relates to a pneumatic infusion device, and belongs to the field of medical instruments. A box body is provided with a buffer cavity, an upper outlet hole, a lower outlet hole, an upperinlet hole and a lower inlet hole, the upper side and lower side of the box body are both provided with an outlet cavity and at least two body cavity groups, and the number of body cavities containedin the body cavity groups from the inlet holes to the outlet holes is decreased respectively in sequence; one body cavity in the body cavity groups is provided with an inlet cavity and an air outlet hole, and other body cavities are only provided with vent holes; the inlet cavity, an outlet cavity and valve plates arranged in the inlet cavity and outlet cavity form an inlet valve and an outlet valve; an upper cover and a bottom plate are arranged at the upper side and lower side of the box body, a piezoelectric actuator is in pressing connection to the interior of each body cavity through a seal ring to form a compression cavity, and the compression cavities in the same body cavity group are connected into a compression cavity group in parallel; the inlet holes, compression cavity groups,outlet cavities and outlet holes in the upper side and lower side of the box body are connected into an upper compression unit and a lower compression unit in series respectively, and the upper compression unit and the lower compression unit are connected in series through the buffer cavity; a bag cavity of the upper cover is internally provided with an air bag and a medicine bag, and the end of the bag cavity is provided with a baffle; the air bag is communicated with the upper outlet hole through an air delivery pipe, and an infusion tube of the medicine bag is provided with a needle and a flow valve.

The invention relates to a step-by-step pressurized pneumatic infusion device, which belongs to the field of medical equipment. The main body is provided with an upper inlet hole, a boss with an upper outlet cavity and an outlet hole, and at least two round table groups whose number of round tables changes sequentially; one round table in the round table group is provided with an upper inlet mouth and an upper air outlet, and the other round tables are provided. There is an upper ventilation hole; the body cavity is equipped with an infusion bag with an air cavity and a medicine cavity, and the air cavity is connected to the outlet hole; the base is provided with a lower inlet hole, a cavity with a lower outlet mouth, and a body cavity group composed of a body cavity; the body cavity One of the body cavities in the group is provided with a lower inlet and a lower air hole, and the other body cavities are equipped with a lower air hole; the upper and lower inlet and outlet chambers and the valve plates inside constitute the upper and lower inlet and outlet valves; the main body is installed on the base so that the upper and lower outlets and the outlet The holes are connected, and the piezoelectric driver is crimped into the body cavity through the sealing ring to form the upper and lower compression chambers. The upper and lower compression chambers in the same body cavity group are connected in parallel to form the upper and lower compression chamber groups, and the upper and lower compression chamber groups are connected in series to form parallel upper and lower compression chambers. unit.

The invention provides a liquid medicament delivery device, which relates to the field of medical equipment. The device for transporting liquid medicine includes a box body, the upper end of the box body is fixedly connected with a plurality of support seats, the upper ends of the plurality of support seats are provided with drug containers fixedly connected with them, and the middle end of the inner wall of the box body is fixed. A partition plate is connected, the bottom end of the partition plate is provided with a delivery box, and the bottom end of the delivery box is fixedly connected to the bottom plate of the box body, and a rotating rod is arranged at the center of the front and rear walls inside the delivery box. A plurality of rotating leaves are fixedly connected to the body of the rotating rod, and a glass liquid delivery pipe is fixedly connected to the center of the bottom end of the medicine container. Through the use of heating wires and temperature relays, the device can automatically and safely heat the liquid medicine, and through the use of servo motors and delivery boxes, the device can precisely control the delivery speed of the liquid medicine, and at the same time solve the problem of infusion. The problem of having to hang the vial high.

The invention relates to an injection system driven by a piezoelectric sheet and belongs to the field of medical instruments. A main body is arranged on a base, and an injector is arranged at the endpart of a cylinder cavity of the main body; the bottom of the main body is provided with a left boss, a right boss and at least two body tables with unequal diameters, the left boss is provided with an upper inlet hole, the right boss is provided with an upper outlet cavity communicated with the cylinder cavity through the upper outlet hole, and the body tables are provided with an upper inlet cavity and an upper outlet hole; the top of the base is provided with a left cavity, a right cavity and a body cavity which are respectively equal to the number and the diameter of the body table, the left cavity is provided with a lower inlet hole, the right cavity is provided with a lower outlet cavity, and the body cavity is provided with a lower inlet cavity and a lower outlet hole; the upper andlower inlet and outlet cavities and the valve plates installed in the upper and lower inlet and outlet cavities respectively form upper and lower inlet and outlet valves; the left boss is arranged inthe left cavity, the right boss is arranged in the right cavity, the body platform presses the piezoelectric driver into the body cavity through a sealing ring to form an upper compression cavity anda lower compression cavity, the upper compression cavity is connected in series to form an upper compression unit, the lower compression cavity is connected in series to form a lower compression unit, and the upper compression unit and the lower compression unit are connected in parallel; in operation, the deformation directions of the left and right adjacent drivers are opposite.

The invention relates to an inflatable extrusion type transfusion device, which belongs to the field of medical equipment. The main body is provided with an upper inlet hole, a boss with an upper outlet cavity, and at least two round table groups whose number of round tables decreases in turn from left to right; the main body cavity is equipped with an air bag and a medicine bag, and the medicine bag infusion tube is equipped with a needle and a flow valve; the base is provided with a lower inlet hole, a cavity with a lower outlet cavity, an air storage chamber connected with the lower outlet cavity, and a body cavity group composed of a body cavity; the upper and lower inlet and outlet chambers and the valve plate constitute the upper and lower inlet and outlet valves; the main body is installed On the base, the boss crimps the partition in the cavity, and the round table crimps the piezoelectric driver in the body cavity through the sealing ring and forms the upper and lower compression chambers with the main body and the base respectively. The upper and lower compression chambers in the same body cavity group are connected in parallel. The upper and lower compression chamber groups are connected in series to form upper and lower compression units connected in parallel; the upper inlet and outlet holes are respectively connected to the gas storage chamber through parallel and series valves, the upper inlet hole is equipped with an inlet valve, and the upper outlet hole is connected through an output valve It communicates with the air bag with deflation valve.

The invention discloses a self-circulating negative pressure drainage system capable of generating continuous fluid shear force at the wound site to accelerate the healing of the wound site. , A air guide tube, B guide tube, peristaltic pump, C guide tube, infusion bottle, E guide tube, A control valve, B control valve and F control valve, among which, medical dressings, B guide tube, peristaltic pump , C guide tube and infusion bottle are connected in sequence, medical dressing, A guide tube, waste liquid bottle, A air guide tube and vacuum pump are connected in sequence, E guide tube is connected between C guide tube and A guide tube, A The control valve is set on the A guide tube, and the connection point between the E guide tube and the A guide tube is located between the A control valve and the medical dressing, the B control valve is set on the C guide tube, and the E guide tube The connection point with the C guide tube is located between the B control valve and the peristaltic pump, and the F control valve is set above the E guide tube.

The invention relates to a piezoelectric-driven transfusion device, which belongs to the field of medical equipment. The seat plate of the main body is provided with a cavity, and a medicine bag with a medicine cavity and an air cavity is installed in the cavity; the bottom of the seat plate is provided with left and right bosses and at least two body platforms whose diameters decrease successively from left to right, and on the left boss There is an upper inlet hole, an upper outlet cavity and an upper outlet hole are arranged on the right boss, an upper inlet cavity and an upper air outlet are arranged on the body platform; left and right cavities and body cavities equal in number and diameter to the body platform are respectively arranged on the base, The bottom wall of the left cavity is provided with a lower inlet hole, the bottom wall of the right cavity is provided with a lower outlet cavity, and the bottom wall of the body cavity is provided with a lower inlet cavity and a lower air outlet; The plate is mounted on the base and the upper and lower inlet holes are connected, the upper and lower outlet openings are connected with the upper outlet hole, the body platform presses the piezoelectric driver in the body cavity through the sealing ring to form the upper and lower compression chambers, and the upper and lower compression chambers connected in series are connected in parallel; the air chamber It communicates with the upper outlet hole through the air pipe, and the infusion pipe of the medicine cavity is equipped with a flow valve and a needle.