CN209662328U - A kind of changing liquid automatically device - Google Patents
A kind of changing liquid automatically device Download PDFInfo
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- CN209662328U CN209662328U CN201821604144.8U CN201821604144U CN209662328U CN 209662328 U CN209662328 U CN 209662328U CN 201821604144 U CN201821604144 U CN 201821604144U CN 209662328 U CN209662328 U CN 209662328U
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- infusion
- pore
- changing liquid
- swivel nut
- motor
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Abstract
The utility model discloses a kind of changing liquid automatically devices, including shell, the shell is provided at least two infusion pores, and at least two infusions pore is arranged in parallel, and is provided with the control assembly opened or closed for controlling perfusion tube between at least two infusion pores；The control assembly includes the identical press component of at least two structures and the control unit for controlling press component operation；The press component includes motor and top-pressure part, the power intake and driving motor of the top-pressure part are sequentially connected, the top-pressure part is corresponded with the infusion pore and the power output end of the top-pressure part can replace under the action of driving motor and is extend into infusion pore perpendicular to the mode of infusion pore and is carried out clamping to perfusion tube or loosen, and the driving motor is controlled by control unit.The utility model is compact-sized, highly-safe, realizes venous transfusion changing liquid automatically, reduces medical staff's working strength, medical staff's working efficiency is substantially improved.
Description
Technical field
The present invention relates to a kind of technical field of medical instrument more particularly to a kind of venous transfusion changing liquid automatically devices.
Background technique
In modern medical service treatment, infusion is that intracorporal large bolus injection liquid is inputted by intravenous drip, is most common control
Treatment mode.In daily life, in order to be rapidly achieved therapeutic effect, the treatment side for generally taking more bottles of injections once to input
Formula, it is therefore desirable to after the completion of one bottle of fluid drip, change to next bottle of injection and continue to be infused.Traditional mode is by medical care
The instillation situation of personnel, patient and families of patients moment concern injection, will instil at one bottle and complete manually to change liquid when completing
Work, usually this to change liquid work completed by the medical staff of medical treatment, therefore is virtually increased much to medical staff
Workload.If not to be noted injection has run out, at this time because of pressure change, it will lead to backflow of blood and feed back liquid pipe, if
It handles not in time, will lead to more serious consequence.
Therefore, it is necessary to design a kind of changing liquid automatically device, two medicinal liquid bottles can be at least provided in patient's infusion process, and
Guarantee that steadily alternately output medical fluid is handled in medical fluid handoff procedure without special messenger two medicinal liquid bottles in infusion process,
To effectively mitigate the workload of medical staff.
Summary of the invention
In view of this, the purpose of the utility model is to provide a kind of changing liquid automatically device, it can be at least in patient's infusion process
Two medicinal liquid bottles are provided, and guarantee that two medicinal liquid bottles steadily alternately export medical fluid in infusion process, in medical fluid handoff procedure
In, it is handled without special messenger, to effectively mitigate the workload of medical staff.
The technical solution of the utility model is: a kind of changing liquid automatically device, it is characterised in that: including shell, the shell is set
At least two infusion pores are equipped with, at least two infusions pore is arranged in parallel, and sets between at least two infusion pores
It is equipped with the control assembly opened or closed for controlling perfusion tube；The control assembly includes the identical press of at least two structures
Component and for control press component operation control unit；The press component includes motor and top-pressure part, the press
The power intake and driving motor of part are sequentially connected, and the top-pressure part is corresponded with the infusion pore and the top-pressure part
Power output end under the action of driving motor can alternately and perpendicular to infusion pore mode extend into infusion pore in simultaneously
Clamping is carried out to perfusion tube or is loosened, the driving motor is controlled by control unit.
Further, the top-pressure part include screw rod and with the matching used swivel nut of screw rod, one end end of the swivel nut
For cecum, the cecum bottom outside of the swivel nut is coaxially fixedly installed press column, the power intake and motor of the screw rod
Power output end transmission connection, power output end and the swivel nut of the screw rod be threadedly engaged.The top-pressure part drives in motor
Under axially along a screw direction do linear expansion movement, push press column to pass through via hole and extend into transfusion catheter or from transfusion catheter
Cut-off or conducting are realized in middle retraction.The press column end is wedge structure, enables to have between press column and perfusion tube
The stress of smaller contact area, application is more concentrated, so as to effectively promote the barrier effect to perfusion tube, and can
It realizes and blocks completely.
Further, the shell is provided with press component installation cavity, and the press component installation cavity includes setting gradually electricity
Machine installation cavity, screw rod installation cavity and swivel nut installation cavity, the screw rod installation cavity are provided in axis direction and in infusion pores
Axis is vertically and the via hole for pore connection of being infused, the press column pass through via hole and pass in and out infusion pore.
Further, it is parallel to the screw rod axial direction in the swivel nut installation cavity and is fixedly installed guide rod, the spiral shell
Set is slidably set to guide rod, and the swivel nut can back and forth be transported under the driving of screw rod along guide rod single-degree-of-freedom
It is dynamic.
Further, the lateral wall radially outwardly projecting of the screw rod forms the positioning protrusion of cyclic structure, the swivel nut peace
The side wall behaveing affectedly radially sinks to forming the locating slot of cyclic structure, and the positioning protrusion is embedded in locating slot.The locating slot
Axial limiting guarantees that screw rod and swivel nut can stablize cooperation, it is ensured that the stability of whole device, wherein the size of locating slot
Slightly larger than the size of positioning protrusion, so that locating slot will not have an impact the rotation of screw rod.
Further, whether described control unit includes instiling the detection module finished, controller, motor for detecting medical fluid
Driving circuit and indicating module；The output end of the detection module and the input terminal of controller connect, the control of the controller
Output end processed is connect with motor-drive circuit, and the indication signal output end of the controller and the input terminal of indicating module connect,
The motor-drive circuit receives the control command control motor work of controller output.The controller uses existing PLC
Or single-chip microcontroller, motor-drive circuit and indicating module are all using the prior art, and details are not described herein.
Further, the detection module includes two metal polar plates and capacitive detection circuit, described two metal polar plates
It is set in infusion pore and composition capacitance structure, two metal polar plates is connected in the circuit of electric capacitance measurement circuit, the electricity
The output end for holding detection circuit is connect with controller.The capacitance structure of described two metal polar plate compositions, when two interpolar of capacitor is defeated
When having medical fluid to flow through in fluid catheter, the dielectric permittivity of two interpolar of capacitor is relatively high, and capacitance is bigger；Conversely, working as capacitor
When flowing through in two interpolar transfusion catheters without medical fluid, the dielectric permittivity of two interpolar of capacitor is relatively low.Electric capacitance measurement unit passes through
The variation of capacitance is measured, is finished to judge whether the liquid being infused in pore instils, and transmit this information to controller.Electricity
Holding measurement unit is the integrated circuit or special circuit for measuring capacitor, and the special circuit is to survey LC frequency of oscillation method circuit or survey
RC charge and discharge Time Method circuit.
Further, the indicating module includes buzzer and indicator light, the input terminal of the buzzer and indicator light with
The indication signal output end of controller connects.Fluid drip in transfusion catheter finishes, and controller controls motor driven top-pressure part
Press column transfusion catheter is protruded by via hole, clamping transfusion catheter is at off state, and controls and press with the latter
Column retracts in the press assembly chambeies, and subsequent side transfusion catheter is connected.In the process, buzzer buzzing is one or many,
Prompt has carried out a changing liquid automatically；Indicator light lights when transfusion catheter is connected, conversely, extinguishing.
Further, it is provided with the locating piece for being positioned to perfusion tube in the infusion pore, for example uses aperture
It is slightly less than the rubber ring of infusion pipe outside diameter, details are not described herein.
The beneficial effects of the utility model are: the purpose of the utility model is to provide a kind of changing liquid automatically device, patient's infusion
Two medicinal liquid bottles can be at least provided in the process, and guarantee that two medicinal liquid bottles steadily alternately export medical fluid in infusion process,
It in medical fluid handoff procedure, is handled without special messenger, to effectively mitigate the workload of medical staff.The utility model simultaneously
Be inserted into the infusion pore of the utility model by disposable medical infusion tube, changing liquid automatically device by or turn on process in
Any type of physics, chemical contact does not occur with medical fluid, medical fluid will not be polluted, it is highly-safe.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the cavity body structure schematic diagram of the utility model.
Fig. 3 is the circuit diagram of the utility model.
Specific embodiment
The utility model is made further instructions below in conjunction with Figure of description:
The utility model provides a kind of changing liquid automatically device, it is characterised in that: including shell 1, shell 1 is provided at least two
Infusion pore 2, at least two infusion pores 2 are arranged in parallel, and are provided between at least two infusion pores 2 defeated for controlling
The control assembly that liquid pipe opens or closes；The control assembly is including the identical press component of at least two structures and for controlling
The control unit of system press component operation；The press component includes motor 11 and top-pressure part, the power input of the top-pressure part
End is sequentially connected with driving motor 11, and the top-pressure part is corresponded with the infusion pore 2 and the power of the top-pressure part is defeated
Outlet can alternately and perpendicular to the mode of infusion pore 2 be extend into infusion pore 2 and to defeated under the action of driving motor 11
Liquid hose carries out clamping or loosens, and the driving motor 11 is controlled by control unit.In the present embodiment, changing liquid automatically device has two
A infusion pore, therefore pressing component is also two groups.For the confined space between effective use infusion pore 2, two groups of press components
It is contrary for setting up and down and power output, keep the press column 101 for pressing component and infusion pore 2 one-to-one.
In the present embodiment, top-pressure part include screw rod 103 and with the matching used swivel nut 102 of screw rod, the one of swivel nut 102
End end is cecum, and the cecum bottom outside of swivel nut 102 is coaxially fixedly installed press column 101, the power input of screw rod 103
End and the power output end of motor 11 are sequentially connected, and power output end and the swivel nut 102 of screw rod 103 are threadedly engaged.Press column 101
End is wedge structure, enables to have smaller contact area between press column and perfusion tube, the stress of application more collects
In, so as to effectively promote the barrier effect to perfusion tube, and it can be realized complete blocking.Certainly, transmission connection uses
The prior art, details are not described herein.
In the present embodiment, shell 1 is provided with press component installation cavity, and the press component installation cavity includes setting gradually
Motor installation cavity 121, screw rod installation cavity 123 and swivel nut installation cavity 124, screw rod installation cavity 123 is provided in axis direction
The via hole 125 that vertical and pore 2 of being infused is connected to in infusion 2 axis of pore, press column 101 pass in and out perfusion tube by via hole 125
Hole 2.The number for pressing component installation cavity is consistent with the press number of component, in the present embodiment, of press component installation cavity
Number is two, it is preferred that as shown in attached drawing 1 or attached drawing 2, two press component installation cavitys are to be set side by side up and down.
In the present embodiment, it is parallel to 103 axial direction of screw rod in swivel nut installation cavity 124 and is fixedly installed guide rod 13,
Swivel nut 102 is slidably set to guide rod 103, and swivel nut 102 can be single certainly along guide rod 13 under the driving of screw rod 103
It is moved back and forth by degree.
In the present embodiment, the lateral wall radially outwardly projecting of screw rod 103 forms the positioning protrusion 104 of cyclic structure, spiral shell
The side wall for covering installation cavity 124 radially sinks to forming the locating slot 122 of cyclic structure, and positioning protrusion 104 is embedded in locating slot
124.124 axial limiting of locating slot guarantees that screw rod and swivel nut can stablize cooperation, it is ensured that the stability of whole device, wherein
The size of locating slot is slightly larger than the size of positioning protrusion, so that locating slot will not have an impact the rotation of screw rod.
In the present embodiment, described control unit include for detect medical fluid whether instil the detection module finished, control
Device, motor-drive circuit and indicating module；The output end of the detection module and the input terminal of controller connect, the control
The control output end of device is connect with motor-drive circuit, the indication signal output end of the controller and the input terminal of indicating module
Connection, the motor-drive circuit receive the control command control motor work of controller output.The controller is controlled using PLC
Device processed, driving motor circuit and indicating module belong to the prior art, and details are not described herein.
In the present embodiment, the detection module includes two metal polar plates 3 and capacitive detection circuit, described two gold
Belonging to pole plate to be set in infusion pore and form capacitance structure, two metal polar plates are connected in the circuit of capacitive detection circuit,
The output end of the capacitive detection circuit is connect with controller.The capacitance structure of described two metal polar plate compositions, when capacitor two
When having medical fluid to flow through in interpolar transfusion catheter, the dielectric permittivity of two interpolar of capacitor is relatively high, and capacitance is bigger；Conversely,
When flowing through in two interpolar transfusion catheter of capacitor without medical fluid, the dielectric permittivity of two interpolar of capacitor is relatively low.Electric capacitance measurement
Unit is finished, and transmit this information to by the variation of measurement capacitance to judge whether the liquid being infused in pore instils
Controller.Electric capacitance measurement unit is the integrated circuit or special circuit for measuring capacitor, and the special circuit is to survey LC frequency of oscillation
Method circuit surveys RC charge and discharge Time Method circuit.
In the present embodiment, the indicating module includes buzzer and indicator light, the input of the buzzer and indicator light
End is connect with the indication signal output end of controller.Fluid drip in transfusion catheter finishes, and controller controls motor driven
The press column of top-pressure part protrudes into transfusion catheter by via hole, and clamping transfusion catheter is at off state, and controls with latter
A press column retracts in the press assembly chambeies, and subsequent side transfusion catheter is connected.In the process, buzzer buzzing it is primary or
It is secondary twice, it prompts to have carried out a changing liquid automatically；After infusion completely, buzzer yowls.Transfusion catheter refers to when being connected
Show that lamp lights, conversely, extinguishing.
In the present embodiment, the locating piece 7 for being positioned to perfusion tube is provided in the infusion pore.Locating piece
7 be existing clip locating piece, for example is slightly less than the rubber ring of infusion pipe outside diameter using aperture, and details are not described herein.
In the present embodiment, the power circuit is powered by 5 external charge battery of circumscribed USB interface, preferably chargeable knob
Detain battery.The microswitch 6 is the master switch of this changing liquid automatically device, controls the working condition of entire changing liquid automatically device.
In actual use, if medical fluid source is two infusion bottles, just for tool there are two infusion tube, two infusions are soft
Pipe is connected to two medical fluid sources respectively across infusion pore, the upper end of two infusion tubes, and two infusion tubes pass through perfusion tube
Hole posterior end is connected to the same liquid medicine transferring container, such as existing medicinal fluid bag, the outlet of medicinal fluid bag by perfusion tube and
Transfusion needle injects medical fluid to human body, under the action of the liquid changing device of the application, first passes through a medicinal liquid bottle to medicinal fluid bag for administration
Liquid, another medicinal liquid bottle are then turned off by liquid changing device, and after use, liquid changing device closes the defeated of current medicinal liquid bottle to current medical fluid bottle liquid medicine
Liquid hose, opens the infusion tube of another medicinal liquid bottle, so that changing liquid automatically is completed, the buzzer buzzing one during changing liquid
It is secondary, when two medical fluid bottle liquid medicines all after use, then by buzzer yowl alarm.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (9)
1. a kind of changing liquid automatically device, it is characterised in that: including shell, the shell is provided at least two infusion pores, described
At least two infusion pores are arranged in parallel, and are provided between at least two infusion pores and open or close for controlling perfusion tube
The control assembly closed；
The control assembly includes the identical press component of at least two structures and the control for controlling press component operation
Unit；
The press component includes motor and top-pressure part, and the power intake and driving motor of the top-pressure part are sequentially connected, institute
The power output end for stating top-pressure part and the infusion pore one-to-one correspondence and the top-pressure part can be handed under the action of driving motor
It replaces and is extend into infusion pore perpendicular to the mode of infusion pore and clamping is carried out to perfusion tube or is loosened, the driving motor
It is controlled by control unit.
2. a kind of changing liquid automatically device according to claim 1, it is characterised in that: the top-pressure part includes screw rod and and screw rod
One end end of matching used swivel nut, the swivel nut is cecum, and the cecum bottom outside of the swivel nut is coaxially fixedly installed
Press column, the power output end of the power intake of the screw rod and motor is sequentially connected, the power output end of the screw rod with
Swivel nut is threadedly engaged.
3. a kind of changing liquid automatically device according to claim 1, it is characterised in that: the shell is provided with press component installation
Chamber, the press component installation cavity includes the motor installation cavity set gradually, screw rod installation cavity and swivel nut installation cavity, the spiral shell
Bar installation cavity is provided with the via hole that and be infused pore vertical in infusion tube bore axis is connected in axis direction, and the press column is logical
Via hole disengaging infusion pore.
4. a kind of changing liquid automatically device according to claim 3, it is characterised in that: be parallel to the spiral shell in the swivel nut installation cavity
Bar axial direction is fixedly installed guide rod, and the swivel nut is slidably set to guide rod, and the swivel nut is in screw rod
Driving under can be moved back and forth along guide rod single-degree-of-freedom.
5. a kind of changing liquid automatically device according to claim 2, it is characterised in that: the lateral wall radially outwardly projecting of the screw rod
The positioning protrusion of cyclic structure is formed, the side wall of the swivel nut installation cavity radially sinks to forming the locating slot of cyclic structure, described
Positioning protrusion is embedded in locating slot.
6. a kind of changing liquid automatically device according to claim 1, it is characterised in that: described control unit includes for detecting medical fluid
Detection module, controller, motor-drive circuit and the indicating module whether instillation finishes；
The output end of the detection module and the input terminal of controller connect, the control output end of the controller and motor driven
Circuit connection, the indication signal output end of the controller and the input terminal of indicating module connect, and the motor-drive circuit connects
The control command control motor work of admission controller output.
7. a kind of changing liquid automatically device according to claim 6, it is characterised in that: the detection module includes two metal polar plates
And capacitive detection circuit, described two metal polar plates are set in infusion pore and composition capacitance structure, two metal polar plates
It is connected in the circuit of capacitive detection circuit, the output end of the capacitive detection circuit is connect with controller.
8. a kind of changing liquid automatically device according to claim 6, it is characterised in that: the indicating module includes buzzer and instruction
The input terminal of lamp, the buzzer and indicator light is connect with the indication signal output end of controller.
9. a kind of changing liquid automatically device according to claim 1, it is characterised in that: be provided in the infusion pore for defeated
The locating piece that liquid pipe is positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821604144.8U CN209662328U (en) | 2018-09-29 | 2018-09-29 | A kind of changing liquid automatically device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821604144.8U CN209662328U (en) | 2018-09-29 | 2018-09-29 | A kind of changing liquid automatically device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209662328U true CN209662328U (en) | 2019-11-22 |
Family
ID=68560714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821604144.8U Active CN209662328U (en) | 2018-09-29 | 2018-09-29 | A kind of changing liquid automatically device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209662328U (en) |
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2018
- 2018-09-29 CN CN201821604144.8U patent/CN209662328U/en active Active
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