CN107638611A - A kind of electronic infusion device of novel non-contact - Google Patents
A kind of electronic infusion device of novel non-contact Download PDFInfo
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- CN107638611A CN107638611A CN201711047904.XA CN201711047904A CN107638611A CN 107638611 A CN107638611 A CN 107638611A CN 201711047904 A CN201711047904 A CN 201711047904A CN 107638611 A CN107638611 A CN 107638611A
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- 238000001802 infusion Methods 0.000 title claims abstract description 45
- 230000008676 import Effects 0.000 claims abstract description 26
- 230000005520 electrodynamics Effects 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 239000003814 drug Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 241001411320 Eriogonum inflatum Species 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 239000003416 antiarrhythmic agent Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000011309 routine diagnosis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of electronic infusion device of novel non-contact, including transfusion device, electrodynamic pump and controller, electrodynamic pump includes variable volume cavity, transfusion device includes dropping funnel and woven hose, dropping funnel is provided with the first import, the second inlet and outlet, and the first import is connected with infusion bottle, and the second import is connected with variable volume cavity, outlet is connected with woven hose, and the first inlet and outlet is respectively arranged with the first flap and the second flap；Controller is connected with electrodynamic pump.Coil in the electrodynamic pump of the infusion device is under input pulse current condition by the of short duration existing magnetic field of formation, magnetostrictive rod in driving electrodynamic pump reciprocates along its axial direction, so as to drive push rod constantly to compress with recovering variable volume cavity, its volume is set constantly to repeat volume compression and recovery action, its Volume Changes will form the pressure field of continuous pulsed change in the dropping funnel of transfusion device, so as to drive liquid to flow to outlet from the first import of dropping funnel, the Automated condtrol of transfusion is realized.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relates to a kind of electronic infusion device of novel non-contact.
Background technology
In medical field, often there is situation about being needed in some medical procedures using automatic infusion, it is such as minimally invasive in Bones and joints
In surgery routine diagnosis and treatment method arthrocsopic surgery, in order to keep the getting a clear view, it is necessary to ensure liquid continuous, sufficient of operative region
Be poured into articular cavity, in addition, some other field, medicinal application of such as boosting, antiarrhythmic drug, infant's vein is defeated
Liquid or Intravenous Anesthesia etc., if medicine loading amount and transfusion speed are pushed away by the experience of healthcare givers to control completely, to operator's
It is required that higher, the mood or other factors of operator will all influence transfusion effect, virtually bring many potential wind to patient
Danger, to solve the control problem of amount of infusion and dose, it is desirable to provide a kind of to be required to carry out automatic infusion according to healthcare givers
Device.
The content of the invention
In view of this, it is an object of the invention to propose a kind of electronic infusion device of novel non-contact, the infusion device
It is simple in construction, it is reasonable in design, the Automated condtrol of transfusion can be realized.
Based on above-mentioned purpose, a kind of electronic infusion device of novel non-contact provided by the invention, including it is transfusion device, electronic
Pump and controller, the electrodynamic pump include variable volume cavity, and the transfusion device includes dropping funnel and woven hose, and the dropping funnel is provided with
One import, the second inlet and outlet, first import are connected with infusion bottle, second import and the variable volume cavity phase
Even, the outlet is connected with the woven hose, and first import and the exit are respectively arranged with the first flap and second
Flap；The controller is connected with the electrodynamic pump, and the controller sends pulse signal to the electrodynamic pump and passes through control
The cavity volume Volume Changes of the variable volume cavity, so as to control the volume flow and flow velocity of infusion device transfusion；When the variable capacity
The cavity volume volume compression of chamber becomes hour, and first flap is closed, and second flap is opened, and the liquid in the dropping funnel is through institute
State the second flap and the woven hose flows to transfusion needle direction；When the cavity volume volume of the variable volume cavity reverts to maximum, institute
The unlatching of the first flap is stated, second flap is closed, and the liquid in the infusion bottle flows to the dropping funnel through first flap.
In one of embodiment in the present invention, the transfusion device also includes bottle plug puncture unit, dropper, Flow-rate adjustment
Device, liquid medicine filter and transfusion needle, one end of the bottle plug puncture unit are connected with the infusion bottle, one end of the dropper and institute
The other end for stating bottle plug puncture unit is connected, and the other end of the dropper is connected with the top of the dropping funnel, and the one of the woven hose
End is connected with the bottom of the dropping funnel, and the other end of the woven hose is connected with the transfusion needle, is set successively on the woven hose
It is equipped with flow regulator and liquid medicine filter.
In one of embodiment in the present invention, the electrodynamic pump also include flange bracket, end cap, push rod, sleeve,
Pre-compressed spring, magnetostrictive rod, coil are provided with circle around body, coil and base, the middle part of the sleeve in axial direction
Ring baffle, the annular baffle are provided with through hole, the First terrace of the annular baffle and the first of the sleeve
Stepped hole between end face is first step hole, between the second step face of the annular baffle and the second end face of the sleeve
Stepped hole is second step hole；
The first end of the flange bracket sets support frame, and support frame as described above is used cooperatively with the variable volume cavity, described
Second end of flange bracket and the end cap are fixed by the first end face of screw and the sleeve, the flange bracket and described
End cap is provided with hole, and the first end of the push rod is in contact with the second end of the variable volume cavity, the second end of the push rod
Sequentially pass through the hole of flange bracket, the hole of end cap and first step hole to be in contact with one end of the magnetostrictive rod, the line
Circle is arranged in the second step hole around body, and the coil is provided with centre bore, the other end of the magnetostrictive rod around body
The through hole and centre bore of annular baffle are sequentially passed through, the coil is wrapped in periphery of the coil between body both ends,
The pre-compressed spring is arranged between the end cap and the second end of the push rod, and the base passes through attachment screw and the set
The second end face connection of cylinder.
In one of embodiment in the present invention, support frame as described above includes support frame first end and support frame second
End, support frame as described above first end are fixedly connected with the end of support frame as described above second, the first end of the variable volume cavity and the support
Frame first end is fixedly connected, and the diameter at the second end of the variable volume cavity is more than the diameter in the hole of flange bracket, makes variable volume cavity
The movement of the second end extreme position be variable volume cavity the second end and the end in contact of support frame second position.
In one of embodiment in the present invention, the diameter at the second end of the push rod is more than the logical of annular baffle
The diameter in hole, the extreme position for moving the second end of push rod are first step of second end with the annular baffle of push rod
The position of face contact.
In one of embodiment in the present invention, the coil around the both ends of body respectively with the annular baffle
Second step face and the base are in contact.
In one of embodiment in the present invention, the section of the end cap is step circles cylinder, the platform of the end cap
The rank face of cylinder and the first step hole coaxial cooperation of the sleeve.
In one of embodiment in the present invention, the variable volume cavity is bellows form.
Compared with prior art, electric infusion device of the invention has the advantages that：
Coil in the electrodynamic pump of the electronic infusion device of novel non-contact of the present invention is under input pulse current condition
By the of short duration existing magnetic field of formation, the magnetostrictive rod in electrodynamic pump is driven to be reciprocated along its axial direction, so as to drive
Push rod constantly compression with recovering variable volume cavity, makes its volume constantly repeat volume compression and volume recovery action, variable capacity
The Volume Changes of chamber will form the pressure field of continuous pulsed change in the dropping funnel of transfusion device, so as to drive liquid from dropping funnel
The outlet of first import flow direction, realize the Automated condtrol of transfusion；The electronic infusion device structure letter of novel non-contact of the present invention
It is single, it is reasonable in design, medical personnel's workload can be mitigated, reduce potential safety hazard, effectively improve the medical treatment satisfaction of patient.
Brief description of the drawings
Fig. 1 is a kind of structure chart of the electronic infusion device of novel non-contact described in the embodiment of the present invention；
Fig. 2 is the structure chart of the transfusion device described in the embodiment of the present invention；
Fig. 3 is the structure chart of the dropping funnel of the transfusion device described in the embodiment of the present invention；
Fig. 4 is the structure chart of the infusion pump described in the embodiment of the present invention；
Wherein, 1- transfusion devices, 1A- dropping funnels, the flaps of 1A-1- first, the flaps of 1A-2- second, 1B- woven hoses, 1C- bottle stoppers are worn
Thorn device, 1D- droppers, 1E- flow regulators, 1F- liquid medicine filters, 1G- transfusion needles, the imports of P1- first, the imports of P2- second,
P3- is exported；2- electrodynamic pumps, 2A- variable volume cavities, the first end of 2A-1- variable volume cavities, the second end of 2A-2- variable volume cavities, 2B-
Flange bracket, the first end of 2B-1- flange brackets, 2B-2- support frames, 2B-2-1- support frame first ends, 2B-2-2- support frames
Second end, the second end of 2B-3- flange brackets, 2C- end caps, 2D- push rods, the first end of 2D-1- push rods, the of 2D-2- push rods
Two ends, 2E- sleeves, the first end face of 2E-1- sleeves, the second end face of 2E-2- sleeves, 2F- pre-compressed springs, 2G- magnetostriction
Rod, 2H- coils are around body, 2H-1- centre bores, 2I- coils, 2J- bases, 2K- annular baffles, 2K-1- through holes, 2K-2- first
Step surface, 2K-3- second steps face, 2L- first steps hole, 2M- second steps hole, 2N- screws, 2O- attachment screws；3- is controlled
Device.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
Fig. 1 is a kind of structure chart of the electronic infusion device of novel non-contact described in the embodiment of the present invention, and Fig. 3 is this hair
The structure chart of the dropping funnel of transfusion device described in bright embodiment；As shown in figures 1 and 3, the electronic transfusion dress of a kind of novel non-contact
Put, including transfusion device 1, electrodynamic pump 2 and controller 3, the electrodynamic pump 2 include variable volume cavity 2A, the transfusion device 1 includes dropping funnel
1A and woven hose 1B, the dropping funnel 1A are provided with the first import P1, the second import P2 and outlet P3, the first import P1 and infusion bottle
It is connected, the second import P2 is connected with variable volume cavity 2A, and outlet P3 is connected with woven hose 1B, distinguishes at the first import P1 and outlet P3
It is provided with the first flap 1A-1 and the second flap 1A-2；Controller 3 is connected with electrodynamic pump 2, and controller 3 is sent to electrodynamic pump 2
Pulse signal is by controlling variable volume cavity 2A cavity volume Volume Changes, so as to control the volume flow and stream that infusion device infuses
Speed；When variable volume cavity 2A cavity volume volume compression becomes small, the first flap 1A-1 is closed, and the second flap 1A-2 is opened, dropping funnel 1A
Interior liquid flows to transfusion needle 1G directions through the second flap 1A-2 and woven hose 1B；When variable volume cavity 2A cavity volume volume reverts to
When maximum, the first flap 1A-1 is opened, and the second flap 1A-2 is closed, and the liquid in infusion bottle flows to dropping funnel through the first flap 1A-1
1A。
The controller 3 can setting electric current pulse signal quantity and pulse signal frequency, control controller 3 exported
The quantity and frequency of current pulse signal can control the volume flow and flow velocity of the electronic infusion device transfusion of novel non-contact.
In an embodiment of the present invention, the first flap 1A-1 and the second flap 1A-2 play a part of check valve, unidirectionally
The effect of valve only allows medium to be flowed to a direction, and prevents opposite direction from flowing.First flap 1A-1 and the second flap 1A-
2 operation principle is：First flap 1A-1 and the second flap 1A-2 inside include baffle plate, nonreturn valve core, valve port and spring,
Nonreturn valve core is connected with spring, and nonreturn valve core and valve port are used cooperatively, and the first flap 1A-1 original state is in unlatching
State (i.e. nonreturn valve core and valve port does not contact), the second flap 1A-2 original state is in state (the i.e. check valve closed
Core and valve port contact are simultaneously fully mated), when variable volume cavity 2A is pressurized under external force, variable volume cavity 2A cavity volume volume becomes
It is small, when pressure increases and is more than the pressure of the first import P1 upstreams in the dropping funnel 1A of transfusion device 1, now, the pressure in dropping funnel 1A
The baffle plate in the first flap 1A-1 can be promoted to move, baffle plate can promote nonreturn valve core to overcome the elastic force of spring, to the direction of valve port
It is mobile, make nonreturn valve core and valve port contacts and fully mated, the flap 1A-1 closings at the first import P1；In dropping funnel 1A
Pressure can promote the baffle plate in the second flap 1A-2 to move, and baffle plate can promote nonreturn valve core to move, and make nonreturn valve core and valve port point
From the second flap 1A-2 at outlet P3 is opened, and the liquid in dropping funnel 1A is flowed through the second flap 1A-2 and woven hose 1B
To transfusion needle 1G directions；When external force event resolves, when variable volume cavity 2A cavity volume volume reverts to maximum, the dropping funnel of transfusion device 1
Pressure increases with dropping funnel 1A volume and produces negative pressure in 1A, the pressure in dropping funnel 1A is less than the pressure of the first import P1 upstreams
When, now, the nonreturn valve core in the first flap 1A-1 returns to original state, nonreturn valve core and valve under the elastic force effect of spring
Mouth separation, the first flap 1A-1 at the first import P1 are opened；The bullet of nonreturn valve core in second flap 1A-2 in spring
Original state, nonreturn valve core and valve port contact and fully mated, the second flap 1A- at outlet P3 are returned under power effect
2 close, and the liquid in infusion bottle flows to dropping funnel 1A through the first flap 1A-1.
Fig. 2 is the structure chart of the transfusion device described in the embodiment of the present invention, as shown in Fig. 2 the transfusion device 1 also includes bottle stopper
Puncture outfit 1C, dropper 1D, flow regulator 1E, liquid medicine filter 1F and transfusion needle 1G, bottle plug puncture unit 1C one end and transfusion
Bottle is connected, and dropper 1D one end is connected with the bottle plug puncture unit 1C other end, the dropper 1D other end and dropping funnel 1A top phase
Even, woven hose 1B one end is connected with dropping funnel 1A bottom, and the woven hose 1B other end is connected with transfusion needle 1G, on woven hose 1B
It is disposed with flow regulator 1E and liquid medicine filter 1F.Optionally, the transfusion needle 1G is intravenous infusion needle, in infusion bottle
Liquid flow into dropper 1D through bottle plug puncture unit 1C, and flowed into from dropper 1D in dropping funnel 1A, then from dropping funnel 1A the second flap
1A-2 flows into woven hose 1B, and finally flows to transfusion needle 1G directions through liquid medicine filter 1F, and flow tune is provided with woven hose 1B
Device 1E is saved, the volume flow and flow velocity of liquid in manually adjustable transfusion device 1.
Fig. 4 is the structure chart of the infusion pump described in the embodiment of the present invention, as shown in figure 4, the electrodynamic pump 2 also includes flange
Support 2B, end cap 2C, push rod 2D, sleeve 2E, pre-compressed spring 2F, magnetostrictive rod 2G, coil are around body 2H, coil 2I and base
The middle part of 2J, the sleeve 2E in axial direction is provided with annular baffle 2K, and annular baffle 2K is provided with through hole 2K-
Stepped hole between 1, annular baffle 2K First terrace 2K-2 and sleeve 2E first end face 2E-1 is first step hole 2L,
Stepped hole between annular baffle 2K second step face 2K-3 and sleeve 2E second end face 2E-2 is second step hole 2M；
The first end 2B-1 of the flange bracket 2B, which sets support frame 2B-2, support frame 2B-2 and variable volume cavity 2A to coordinate, to be made
With flange bracket 2B the second end 2B-3 and end cap 2C are fixed by screw 2N and sleeve 2E first end face 2E-1, flange branch
Frame 2B and end cap 2C is provided with hole, and push rod 2D first end 2D-1 and variable volume cavity 2A the second end 2A-2 are in contact, push rod
2D the second end 2D-2 sequentially passes through flange bracket 2B hole, end cap 2C hole and first step hole 2L and magnetostrictive rod 2G's
One end is in contact, and coil is arranged in the 2M of second step hole around body 2H, and coil is provided with centre bore 2H-1, magnetostriction around body 2H
The rod 2G other end sequentially passes through annular baffle 2K through hole 2K-1 and centre bore 2H-1, and coil 2I is wrapped in coil around body 2H
Periphery between both ends, pre-compressed spring 2F are arranged between end cap 2C and push rod 2D the second end 2D-2, and base 2J leads to
Attachment screw 2O is crossed to be connected with sleeve 2E second end face 2E-2.
In embodiments of the present invention, the magnetostrictive rod 2G is made of magnetostriction materials, and it makees in external magnetic field
It can be extended under, the original length is returned to again after removing external magnetic field.The middle parts of the sleeve 2E in axial direction are set
Annular baffle 2K is equipped with, annular baffle 2K is provided with through hole 2K-1, and push rod 2D the second end 2D-2 diameter is more than annulus
Shape baffle plate 2K through hole 2K-1 diameter, when push rod 2D the second end 2D-2 moves axially along sleeve 2E and touches annular gear
During plate 2K First terrace 2K-2, because annular baffle 2K axial movements of the First terrace 2K-2 to push rod 2D is played
Barrier effect, now, the limit position of push rod 2D the second end 2D-2 in axial direction second end face 2E-2 movements to sleeve 2E
It is set on sleeve 2E centre positions annular baffle 2K First terrace 2K-2.
Optionally, support frame as described above 2B-2 includes support frame first end 2B-2-1 and the second end of support frame 2B-2-2, support
Frame first end 2B-2-1 is fixedly connected with the second end of support frame 2B-2-2, variable volume cavity 2A first end 2A-1 and support frame first
End 2B-2-1 is fixedly connected, and the diameter in variable volume cavity 2A the second end 2A-2 hole of the diameter more than flange bracket 2B, is made variable
The extreme position of cavity volume 2A the second end 2A-2 movements is variable volume cavity 2A the second end 2A-2 and the second end of support frame 2B-2-2
The position of contact.
In embodiments of the present invention, support frame as described above 2B-2 includes support frame first end 2B-2-1 and the end of support frame second
2B-2-2, support frame first end 2B-2-1 and the second end of support frame 2B-2-2 can be fixedly connected by one side, i.e. support frame
2B-2 is groove shapes, can be also fixedly connected by both sides, i.e. support frame 2B-2 is quadrangular frame shape.Variable volume cavity
When 2A the second end 2A-2 is moved axially along sleeve 2E and touched the second end of support frame 2B-2-2, due to the end of support frame second
Barrier effect is played in axial movements of the 2B-2-2 to variable volume cavity 2A, and now, variable volume cavity 2A the second end 2A-2 is in branch
The extreme position of the second end of support 2B-2-2 movements.
The the second end 2B-3 and end cap 2C of the flange bracket 2B is fixed on by screw 2N in sleeve 2E first end face；
The section of the end cap 2C is step circles cylinder, and end cap 2C step circles cylinder is coaxially matched somebody with somebody with sleeve 2E first step hole 2L
Close.
One end of the pre-compressed spring 2F is pressed on end cap 2C, and the pre-compressed spring 2F other end is pressed in push rod 2D step surface
On.The magnetostrictive rod 2G is coaxially mounted to coil in body 2H centre bore 2H-1, and coil is coaxially mounted to cover around body 2H
In the cavity that cylinder 2E centre position annular baffle 2K second step face 2K-3 and base 2J is formed；Preferably, the coil
It is in contact respectively with annular baffle 2K second step face 2K-3 and base 2J around body 2H both ends.The base 2J passes through company
Screw 2O is met to be fixed in sleeve 2E second end face.
Preferably, the section of the end cap 2C is step circles cylinder 2C-1, end cap 2C step circles cylinder 2C-1 and sleeve
2E first step hole 2L coaxial cooperations.
Optionally, the variable volume cavity 2A is bellows form, you can variable volume chamber 2A sheets are as a spring, in variable volume cavity
2A the second end 2A-2 be under pressure effect when, because variable volume cavity 2A first end 2A-1 is fixed, variable volume cavity 2A cavity volume
Volume diminishes；When pressure event resolves, variable volume cavity 2A cavity volume volume reverts to maximum.
The operation principle of the electronic infusion device of described novel non-contact is：Controller 3 is to coil around body 2H inputs one
During individual pulsed current signal, magnetostrictive rod 2G will produce pulsed electromagnetic force, its promote push rod 2D and pre-compressed spring 2F to
Close to the movement of variable volume cavity 2A side, connect because variable volume cavity 2A first ends 2A-1 and support frame first end 2B-2-1 is fixed
Connect, that is, limit variable volume cavity 2A and be axially moveable, push rod 2D first ends 2D-1 will bear against variable volume cavity 2A the second end 2A-2
Go up and promote it mobile to variable volume cavity 2A first end 2A-1 directions and its cavity volume volume compression is diminished, be designed to bellows
The variable volume cavity 2A sheets of shape are as a spring, and when at its second end, 2A-2 is stressed, variable volume cavity 2A diminishes；When controller 3
Not to coil around body 2H input current signals when, magnetostrictive rod 2G electromagnetic force disappears, in pre-compressed spring 2F and variable volume cavity
Under 2A resilient force, push rod 2D will promote magnetostrictive rod 2G to be moved to base 2J directions, now, variable volume cavity 2A appearance
Cavity volume reverts to maximum.In the case of the impulse waveform identical that controller 3 is exported, an impulse waveform correspond to variable
Cavity volume 2A discharges the liquid of same volume, therefore, the quantity and frequency of the current pulse signal that control controller 3 is exported
Control the volume flow and flow velocity of the electronic infusion device transfusion of novel non-contact.
As shown in the above, the coil in the electrodynamic pump of the electronic infusion device of novel non-contact of the invention is inputting
By the of short duration existing magnetic field of formation under the conditions of pulse current, the magnetostrictive rod in electrodynamic pump is driven to be come and gone along its axial direction
It is mobile, so as to drive push rod constantly to compress with recovering variable volume cavity, its volume is constantly repeated volume compression extensive with volume
Double action is made, and the Volume Changes of variable volume cavity will form the pressure field of continuous pulsed change in the dropping funnel of transfusion device, so as to drive
Hydrodynamic body flows to outlet from the first import of dropping funnel, realizes the Automated condtrol of transfusion；The novel non-contact of the present invention is electronic
Infusion device is simple in construction, reasonable in design, can mitigate medical personnel's workload, reduces potential safety hazard, effectively improves patient's
Medical treatment satisfaction.
Those of ordinary skills in the art should understand that：The discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under the thinking of the present invention, above example
Or can also be combined between the technical characteristic in different embodiments, and the different aspect of the present invention as described above be present
Many other changes, in order to it is concise they do not provided in details.Therefore, within the spirit and principles of the invention,
Any omission for being made, modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
1. a kind of electronic infusion device of novel non-contact, it is characterised in that described including transfusion device, electrodynamic pump and controller
Electrodynamic pump includes variable volume cavity, and the transfusion device includes dropping funnel and woven hose, and the dropping funnel is provided with the first import, the second import
And outlet, first import are connected with infusion bottle, second import is connected with the variable volume cavity, it is described outlet with it is described
Woven hose is connected, and first import and the exit are respectively arranged with the first flap and the second flap；The controller with
The electrodynamic pump is connected, and the controller sends pulse signal by controlling the cavity volume of the variable volume cavity to the electrodynamic pump
Volume Changes, so as to control the volume flow and flow velocity of infusion device transfusion；When the cavity volume volume compression of the variable volume cavity becomes
Hour, first flap is closed, and second flap is opened, and the liquid in the dropping funnel is through second flap and described defeated
Liquid pipe flows to transfusion needle direction；When the cavity volume volume of the variable volume cavity reverts to maximum, first flap is opened, described
Second flap is closed, and the liquid in the infusion bottle flows to the dropping funnel through first flap.
2. the electronic infusion device of novel non-contact according to claim 1, it is characterised in that the transfusion device also includes
Bottle plug puncture unit, dropper, flow regulator, liquid medicine filter and transfusion needle, one end of the bottle plug puncture unit and the transfusion
Bottle is connected, and one end of the dropper is connected with the other end of the bottle plug puncture unit, the other end of the dropper and the dropping funnel
Top be connected, one end of the woven hose is connected with the bottom of the dropping funnel, the other end of the woven hose and the transfusion
Pin is connected, and flow regulator and liquid medicine filter are disposed with the woven hose.
3. the electronic infusion device of novel non-contact according to claim 1, it is characterised in that the electrodynamic pump also includes
Flange bracket, end cap, push rod, sleeve, pre-compressed spring, magnetostrictive rod, coil are around body, coil and base, and the sleeve is along axle
The middle part in direction is provided with annular baffle, the annular baffle is provided with through hole, and the of the annular baffle
Stepped hole between the first end face of one step surface and the sleeve is first step hole, the second step face of the annular baffle
Stepped hole between the second end face of the sleeve is second step hole；
The first end of the flange bracket sets support frame, and support frame as described above is used cooperatively with the variable volume cavity, the flange
Second end of support and the end cap are fixed by the first end face of screw and the sleeve, the flange bracket and the end cap
Hole is provided with, the first end of the push rod is in contact with the second end of the variable volume cavity, and the second end of the push rod is successively
Be in contact through the hole of flange bracket, the hole of end cap and first step hole with one end of the magnetostrictive rod, the coil around
Body is arranged in the second step hole, and the coil is provided with centre bore around body, and the other end of the magnetostrictive rod is successively
Through the through hole and centre bore of annular baffle, the coil is wrapped in periphery of the coil between body both ends, described
Pre-compressed spring is arranged between the end cap and the second end of the push rod, and the base passes through attachment screw and the sleeve
Second end face connects.
4. the electronic infusion device of novel non-contact according to claim 3, it is characterised in that support frame as described above includes branch
Support first end and the end of support frame second, support frame as described above first end is fixedly connected with the end of support frame as described above second, described variable
The first end of cavity volume is fixedly connected with support frame as described above first end, and the diameter at the second end of the variable volume cavity is more than flange bracket
Hole diameter, the extreme position for moving the second end of variable volume cavity is that the second end of variable volume cavity and support frame second terminate
Tactile position.
5. the electronic infusion device of novel non-contact according to claim 3, it is characterised in that the second end of the push rod
Diameter be more than annular baffle through hole diameter, the extreme position for making the second end of push rod move be push rod the second end and
The position of the First terrace contact of the annular baffle.
6. the electronic infusion device of novel non-contact according to claim 3, it is characterised in that the coil around body two
End is in contact with the second step face of the annular baffle and the base respectively.
7. the electronic infusion device of novel non-contact according to claim 3, it is characterised in that the section of the end cap is
Step circles cylinder, the step circles cylinder of the end cap and the first step hole coaxial cooperation of the sleeve.
8. the electronic infusion device of novel non-contact according to claim 1, it is characterised in that the variable volume cavity is ripple
Line tube shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047904.XA CN107638611A (en) | 2017-10-31 | 2017-10-31 | A kind of electronic infusion device of novel non-contact |
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| CN108525070A (en) * | 2018-04-25 | 2018-09-14 | 上海应用技术大学 | A kind of superhigh precision magnetostriction syringe pump having from perceptional function |
| CN112957563A (en) * | 2021-03-18 | 2021-06-15 | 台州恩泽医疗中心(集团) | Micro-injection pump for ICU department |
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| CN112957563A (en) * | 2021-03-18 | 2021-06-15 | 台州恩泽医疗中心(集团) | Micro-injection pump for ICU department |
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