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

The invention discloses a disposable automatic heating and pressurizing transfusion device comprising a closed vessel containing sterile liquid. The disposable automatic heating and pressurizing transfusion device is characterized in that the closed vessel is internally provided with a piston which divides the closed vessel into an upper part and a lower part, wherein the capacity of the upper part is larger than that of the lower part, the upper part is a liquid bin in which the sterile liquid is closed in advance, and a vacuum chamber at the lower part is internally provided with a pressurizing device which is connected with the center of the bottom surface of the piston; a medicine adding device is arranged at one side of the top of the liquid bin, and a transfusion rubber tube is led out from the other side of the top of the liquid bin and is connected with a venipuncture needle head; and a heating device is arranged at the periphery of the radial bin wall of the liquid bin. The invention can control the transfusion quantities and the transfusion speed and automatically heat under the cold condition, has simple and convenient administration operation, flexible administration, no secondary pollution, small volume, light weight, convenient carrying, and is particularly suitable for relieving a sick or injured person in field operation and doing rescue and relief work in the field under the cold condition, thereby realizing transfusion in a narrow space.

The invention discloses a negative pressure drainage system capable of achieving a self-circulation; the negative pressure drainage system can generate a continuous liquid shearing force in the position of a wound surface, so as to accelerate the union of the wound surface. The negative pressure drainage system comprises a medical dressing, a waste liquid bottle, a vacuum pump, an A liquid conduit, an A air conduit, a B liquid conduit, a peristaltic pump, a C liquid conduit, an infusion bottle, an E liquid conduit, an a control valve, a B control valve and an F control valve, wherein the medical dressing, the B liquid conduit, the peristaltic pump, the C liquid conduit and the infusion bottle are sequentially connected. The medical dressing, the A fluid conduit, the waste liquid bottle, the A air conduit and the vacuum pump are sequentially connected. The E liquid conduit is connected between the C liquid conduit and the A liquid conduit. The A control valve is installed on the A liquid conduit; and the connection point between the E liquid conduit and the A liquid conduit is located between the A control valve and the medical dressing. The B control valve is installed on the C liquid conduit; and the connection point between the E liquid conduit and the C liquid conduit is located between the B control valve and the peristaltic pump. The F control valve is installed on the E liquid conduit.

The invention relates to a piezoelectric sheet driven drug injector, and belongs to the field of medical instruments. The top of a main body is provided with a syringe with a secondary piston and a cylinder chamber, and a main piston divides the cylinder chamber into left and right cylinder chambers; a main piston push rod protrudes through the left wall of the cylinder chamber and abuts against asecondary piston push rod; the bottom of the man body is provided with an upper air inlet hole, a boss and a plurality of round table groups; the top of a box body is provided with a lower air inlethole, a hole chamber, a gas storage chamber communicated with a lower outlet chamber and body chamber groups and body chambers respectively equal to the number of the round table groups and the numberof round tables included therein; the main body is mounted on the box body, and the boss is placed in the hole chamber and makes upper and lower outlet chambers be communicated with the gas storage chamber; the round tables press drivers in the body chambers through sealing rings to form upper and lower compression chambers, the upper and lower compression chambers in the same body chamber groupsare respectively connected in parallel to form upper and lower compression chamber groups, and each upper compression chamber group and each lower compression chamber group are respectively connectedin series to form upper and lower compression units; the left cylinder chamber is connected to a reversing valve through a gas transmission pipe, and the right cylinder chamber is connected to the gas storage chamber through the gas transmission pipe and the reversing valve.

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 spraying machine, in particular to a convenient spraying machine for a garden. In order to solve the technical problem, the invention provides the convenient spraying machine being low in cost and convenient to move for the garden. The convenient spraying machine for the garden comprises a first mounting plate, a first connecting rod, a driving mechanism, a linking mechanism, a liquid transmitting mechanism, a shaking mechanism, a spraying mechanism, a second mounting plate, a feeding hopper, a third mounting board, an L-shaped rod, a shaking box, a conveying belt, universal wheels and a fourth mounting plate, wherein the universal wheels are fixedly connected to the bottom of the fourth mounting plate; the first mounting plate, the second mounting plate and the third mounting plate are sequentially and fixedly connected to the top of the fourth mounting plate along the length direction of the fourth mounting plate. The convenient spraying machine disclosed by the invention has the effects that fruit trees in the garden can be conveniently sprayed within a narrow range, and thereby the effects of convenience in movement and increase of spraying speed are realized.

The invention relates to a portable drug injector, and belongs to the field of medical instruments. The top of a main body is provided with a syringe, the main body is provided with a cylinder chamber, a main piston divides the cylinder chamber into left and right chambers, a push rod of the main piston stretches out from the left wall of the cylinder chamber and abuts against a push rod of an auxiliary piston; the main body is arranged on a box body, left and right bosses of the main body are placed in left and right sinking cavities of the box body respectively, flow inlet and outlet holes in the main body are communicated with flow inlet and outlet holes in the box body respectively; body tables of the main body press drivers in body cavities of the box body through sealing rings to form upper and lower compression cavities, the diameters of the upper and lower compression cavities are gradually decreased from left to right, and the upper and lower compression cavities are firstly connected in parallel and then connected in series; each energy converter is composed of two piezoelectric vibrators and a gasket between the corresponding piezoelectric vibrators, and each piezoelectric vibrator is formed by bonding a base plate and a piezoelectric plate; when the portable drug injector is in use, the deformation directions of the two piezoelectric vibrators of the same energy converter are same, and the deformation directions of piezoelectric vibrators in every two adjacent drivers on the left and right are opposite; left and right cavities are connected with a reversing valve through air conveying pipes, and the reversing valve is connected with an air storage chamber through an air conveying pipe.

The invention relates to a portable infusion device and belongs to the field of medical instruments. The base is provided with an inlet hole, at least two sinking cavity groups formed by sinking cavities, outlet cavities and an air storage chamber, wherein the number of the sinking cavities contained in each sinking cavity group from left to right is reduced in sequence; inlet cavities and vent holes are formed in the leftmost sinking cavity in each sinking cavity group, and other sinking cavities are provided with air inlet holes and air outlet holes; the inlet and outlet cavities and valve plates mounted in the inlet and outlet cavities form inlet and outlet valves respectively; a main body is mounted on the base and presses a diaphragm on the base, guide holes of the main body and the sinking cavities of the base are symmetrically formed in the two sides of the diaphragm, and piezoelectric stacks in the guide holes press T-shaped pistons on the diaphragm; the diaphragm presses sealing rings into the sinking cavities to form compression cavities; the corresponding compression cavities in each sinking cavity group are connected in parallel to form a compression cavity group, and all the compression cavity groups are connected in series. The top of the main body is provided with a bag cavity provided with an airbag and a medicine bag, a liquid outlet pipe of the medicine bag isprovided with a flow regulating valve and a needle head, and an air inlet pipe of the airbag is connected with the air storage chamber and provided with a switch valve and a deflation valve.

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 discloses an automatic infusion apparatus which comprises an elastic device, a liquid guide tube connected with one end of the elastic device and a switching valve arranged on the liquid guide tube. The elastic device is provided with a medicine liquid injection port and a medicine liquid outlet, wherein the medicine liquid outlet is connected with one end of the liquid guide tube, and the other end of the liquid guide tube is used for being connected with a needle tube. Due to the fact that medicine liquid is subjected to the effect of a resilience force, the blood backflow situation is not worried, the automatic infusion apparatus is not needed to be hung at a high position, can be hung on a body, put in a pocket or put on a bed and is not needed to be lifted by others, and a patient does not need to sit or lie for a long period of time and can freely move and control the infusion speed through the switching valve. On the one hand, medicine liquid is completely isolated from air and accordingly is prevented from being polluted by bacteria, viruses and dust in the air; on the other hand, the automatic infusion apparatus is convenient to use.

The invention discloses an infusion auxiliary mechanism and control system with a remote control function, and relates to the technical field of hospital department auxiliary tools. The infusion auxiliary mechanism comprises a shell body, a connecting mechanism and an auxiliary system, a placing groove is formed in one side of the shell body, a first connecting lantern ring is fixedly connected toa top part of the shell body, a micro heating pad is fixedly arranged on an upper side of an interior of the placing groove, and the auxiliary system comprises an MCU controller, a receiving module,an output module, a power module, a feedback module and a wireless transmitter. The infusion auxiliary mechanism can conveniently fix an infusion tube, does not affect an infusion speed compared witha traditional fixing mode of clamping the infusion tube, can achieve an infusion remaining amount real-time monitoring and alarming function, can control and monitor an infusion temperature, can alsocontrol the infusion speed, can realize a function of wirelessly transmitting the infusion temperature and an infusion remaining amount real-time wireless delivery to a remote doctor to remotely master an infusion condition at any time, and increases practicability.

The invention belongs to the technical field of transfusion, and relates to a transfusion system capable of conveniently and accurately monitoring the transfusion flow. The transfusion system includes a liquid drug container, a transfusion pipe and a flow monitoring device, wherein the liquid drug container is used for containing liquid drugs and is connected with the transfusion pipe, and the flow monitoring device is arranged on the transfusion pipe and used for monitoring the transfusion flow; the other end of the transfusion pipe is connected with vein vessels of a patient, so that the liquid drugs can flow into the vein vessels of the patient; the flow monitoring device includes a housing, a liquid drug inlet, a valve element, an elastic part and a liquid drug outlet, wherein the liquid drug inlet, the valve element, the elastic part and the liquid drug outlet are sequentially arranged in the flowing direction of the liquid drugs in the housing; a gap is formed between the valve element and the housing and/or an opening is formed in the middle of the valve element, so that the liquid drugs can flow through the flow monitoring device. By means of the transfusion system capable of conveniently and accurately monitoring the transfusion flow, time, labor and worry are saved, and the transfusion flow in the transfusion process of the patient is accurately monitored.