CN103405825A - Transfusion pump - Google Patents
Transfusion pump Download PDFInfo
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- CN103405825A CN103405825A CN2013103754951A CN201310375495A CN103405825A CN 103405825 A CN103405825 A CN 103405825A CN 2013103754951 A CN2013103754951 A CN 2013103754951A CN 201310375495 A CN201310375495 A CN 201310375495A CN 103405825 A CN103405825 A CN 103405825A
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- piston
- module
- screw mandrel
- connecting rod
- resettlement section
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- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000001802 infusion Methods 0.000 claims description 57
- 238000006073 displacement reaction Methods 0.000 claims description 42
- 230000033001 locomotion Effects 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 24
- 230000006698 induction Effects 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 210000000056 organ Anatomy 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 21
- 238000012544 monitoring process Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012503 blood component Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
A transfusion pump comprises a casing, a driving module, a piston, a pressure sensing module and a control module. The casing comprises a containing portion and a guide portion. The containing portion is used for containing a transfusion bag, and a liquid outlet is arranged in the lateral wall. The driving module is arranged at one end of the guide portion far away from the containing portion, and the driving end of the driving module can reciprocate along the guide portion. The piston is arranged in the casing and connected with the driving end. The pressure sensing module is arranged on the lateral wall of the piston far away from the driving module to obtain a pressure value between the transfusion bag and the piston. The control module, the driving module and the pressure sensing module are in communication connection. The control module receives the pressure value between the transfusion bag and the piston and measured by the pressure sensing module and controls the driving module according to the pressure value. When the pressure value is larger than preset pressure value, the control module controls the driving module to stop. When the pressure value is smaller than or equal to the preset pressure value, the control module controls the driving module to proceed at constant speed.
Description
Technical field
The present invention relates to a kind of medical transfusion device, particularly a kind of infusion pump.
Background technology
Infusion pump is a kind ofly can accurately control number of infusion drops or infusion flow rate, guarantees that medicine is can speed even, and dose accurately and safely enters a kind of instrument played a role in the patient body.Simultaneously, infusion pump can also improve efficiency and the motility of clinical administration operation, reduces nursing work load.Infusion pump reaches by acting on transfusion catheter the purpose of controlling transfusion speed.Infusion pump adopts finger pressing type wriggling structure to reach higher infusion pressure mostly.Finger pressing type wriggling structure is comprised of motor, drive mechanism, wriggling axle, wriggling cam, extrusion pump sheet, pressing plate.During work, control electric machine rotation by micro-chip processor, drive the rotation of wriggling axle by drive mechanism, the wriggling axle drives the wriggling cam again and rotates, and makes extrusion pump sheet regular moving up and down under the extruding of cam.Extrusion pump sheet alternately extruding is placed in the tube for transfusion between pressing plate and extrusion pump sheet, and then medicinal liquid is pushed ahead.
But peristaltic pump pushes repeatedly to tube for transfusion, the tube for transfusion damage is large, causes the pipeline rebound performance to descend, impact transfusion precision.While working long hours, even can squeeze the risk of breaking by the handlebar tube for transfusion.
Summary of the invention
Based on this, be necessary to provide a kind of infusion pump without tube for transfusion is pushed repeatedly.
A kind of infusion pump comprises:
Housing, be the hollow tube-shape structure, and described housing comprises resettlement section and guide part, and described resettlement section, for accommodating transfusion bag, offers liquid outlet on the sidewall of described resettlement section, and tube for transfusion can pass from described liquid outlet;
Driver module, be located at the end of described guide part away from described resettlement section, and the drive end of described driver module is contained in described guide part, and can move back and forth along described guide part;
Piston, be located in described housing, and be connected with the drive end of described driver module, and described driver module drives described piston and reciprocatingly slides along described guide part, and described piston is moveable in described resettlement section, pushes described transfusion bag;
The pressure sensing module, be located on the sidewall of described piston away from described driver module, be used to obtaining the force value between described transfusion bag and described piston; And
Control module, be connected with described driver module and described pressure sensing module communication, and described control module receives the transfusion bag of described pressure sensing module measurement and the force value between piston, and according to this force value, control the kinestate of described driver module;
Wherein, described driver module drives described piston and moves, the described transfusion bag of described piston extruding, and described pressure sensing module is obtained the force value between described transfusion bag and described piston, when described force value was greater than default force value, described control module was controlled described driver module and is stopped; When described force value was less than or equal to described default force value, described control module was controlled described driver module and is at the uniform velocity advanced.
In embodiment, described driver module comprises therein:
Motor, be fixed at the end of described guide part away from described resettlement section;
Screw mandrel, be connected with the driving shaft of described motor, and the described screw mandrel of described drive shaft rotates;
The feed screw nut, be located on described screw mandrel, and described screw mandrel rotates described feed screw nut and moves along described screw mandrel; And
Push rod, the one end is fixedly connected with described feed screw nut, and described feed screw nut moves and drives described pushrod movement, and the other end is fixedly connected with described piston;
Wherein, described motor forward or reverse, described push rod drives described piston-advance or retreats.
Therein in embodiment, the length of described screw mandrel and described push rod and be greater than the length of described housing.
In embodiment, described driver module comprises therein:
Air pump; And
Air bag, be communicated with described air pump, and an end is fixed at the end of described guide part away from described resettlement section, and the other end is fixedly connected with described piston;
Wherein, described air pump is to described airbag aeration or bleed, and described air bag elongates or shortens, and described air bag drives described piston-advance or retreats.
In embodiment, described air bag is the organ type air bag therein.
In embodiment, offer rail groove on described piston therein, the bearing of trend of described rail groove is perpendicular to the direction of motion of described piston;
Described driver module comprises: motor, be fixed on the lateral wall of described guide part away from an end of described resettlement section, and the direction of motion of the driving shaft of described motor is vertical with the direction of motion of described piston;
Screw mandrel, be connected with the driving shaft of described motor, and the described screw mandrel of described drive shaft rotates;
Slide bar, the one end is fixedly connected with the end of described screw mandrel away from described motor, and the other end of described slide bar is fixedly connected with the sidewall of described guide part; The feed screw nut, be located on described screw mandrel, and described screw mandrel rotates described drive nut and moves along described screw mandrel;
Slide block, slidably be located on described slide bar;
Deformable rack, be contained in described guide part, comprise first connecting rod, second connecting rod and rotating shaft, the middle part of described first connecting rod and described second connecting rod is passed in described rotating shaft, described first connecting rod and described second connecting rod are rotatably connected, described first connecting rod is rotatably connected near an end and the described feed screw nut of described screw mandrel, the other end of described first connecting rod is connected with described piston, and along described rail groove slidably, described second connecting rod is rotatably connected near an end and the described slide block of described slide bar, the other end of described second connecting rod is connected with described piston, and along described rail groove slidably,
Wherein, the described screw mandrel of described driven by motor rotates, described feed screw nut moves along described screw mandrel, described feed screw nut drives described first connecting rod and rotates with respect to described second connecting rod, described second connecting rod drives described slide block and slides along described slide bar, described slide block and described feed screw nut move in opposite directions or dorsad, and described Deformable rack elongates or shortens, and described Deformable rack drives described piston-advance or retreats.
In embodiment, the shape of described resettlement section and the shape of described transfusion bag are complementary, and the volume of described resettlement section equates with the volume of described transfusion bag therein.
Therein in embodiment, also comprise displacement detection module, described displacement detection module comprises displacer and displacement induction rod, described displacer slidably is located on described displacement induction rod, on the sidewall of described resettlement section, offer elongated slot, described displacement induction rod is located at the outside of described resettlement section and is horizontally placed on the top of described elongated slot, described displacer passes described elongated slot and is fixedly connected with described piston, the described displacer of described piston driving slides along described displacement induction rod, and described displacement detection module can acquire the positional information of described piston.
In embodiment, described displacement detection module is resistor type displacement sensor, capacitive displacement transducer, grating scale or grating encoder therein.
Therein in embodiment, also comprise alarm module, described alarm module and the communication connection of described control module, described displacement detection module is connected with described control module communication, described displacement detection module obtains the positional information of described piston, and send to described control module, described control module receives information, when the positional information of the piston obtained when described displacement detection module is uniform motion, described control module is controlled described driver module and is normally moved, when the positional information of the piston obtained when described displacement detection module is halted state, described control module is controlled described alarm module and is sent warning.
The whole infusion process of above-mentioned infusion pump is the disposable process that transfusion bag is compressed, and does not exist and repeatedly pushes pipeline, avoids causing the risk that trueness error is large, tube for transfusion breaks.
The accompanying drawing explanation
Fig. 1 is the perspective view of the infusion pump of an embodiment;
Fig. 2 is the work schematic diagram of infusion pump shown in Figure 1;
Fig. 3 is the perspective view of the infusion pump of another embodiment;
Fig. 4 is the perspective view of the infusion pump of another embodiment.
The specific embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing, provided preferred embodiments of the present invention.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the purpose of these embodiments be make to disclosure of the present invention understand more comprehensively thorough.
It should be noted that, when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may have simultaneously centering elements.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement just for illustrative purposes, do not mean it is unique embodiment.
Unless otherwise defined, all technology of using of this paper and scientific terminology are with to belong to the implication that those skilled in the art of the present invention understand usually identical.The term used in description of the present invention herein, just in order to describe the purpose of concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Refer to Fig. 1 and Fig. 2, the infusion pump 100 of present embodiment comprises housing 110, driver module 120, piston 130, pressure sensing module 140, displacement detection module 150, alarm module 160, control module 170, check valve 180 and liquid stopping clamp 190.
Piston 130 is located in housing 110.Piston 130 is connected with the drive end of driver module 120.Driver module 120 driven plunger 130 reciprocatingly slide along guide part 113.Piston 130 is moveable in resettlement section 111, extruding transfusion bag 10.
Specifically in the present embodiment, driver module 120 comprises motor 121, screw mandrel 123, shaft joint 125, bearing 127, feed screw nut 128, push rod 129.
Be appreciated that motor 121 can be motor.When motor was linear electric motors, screw mandrel 123 can omit, and push rod 129 directly is fixed on the drive end of linear electric motors, with pushing piston 130 motions.
Screw mandrel 123 is connected with the driving shaft of motor 121.One end of screw mandrel 123 is contained in drive shaft hole 118 and is fixedly connected with motor 121 driving shafts.Shaft joint 125 accommodate with drive shaft hole 118 in, and be located at the junction of screw mandrel 123 and driving shaft, be fixedly connected with screw mandrel 123 with driving shaft by shaft joint 125.Drive shaft screw mandrel 123 rotates.The length of screw mandrel 123 and push rod 129 and the length that is greater than housing 110.
Refer to Fig. 3, in the second embodiment, driver module 220 comprises air pump 221, air bag 223 and trachea 225.
When 221 pairs of air bags of air pump 223, inflate or bleed, air bag 223 elongates or shortens, and air bag 223 drives pistons 230 and advances or retreat.Piston 230 advances, extruding transfusion bag 20, and liquid flows out, until infused.Piston 230 retreats into initial position, recovers the space size of resettlement section 211, in order to using next time.
Refer to Fig. 4, in the 3rd embodiment, on piston 330, offer rail groove 331, the bearing of trend of rail groove 331 is perpendicular to the direction of motion of piston 330.
Driver module 320 comprises motor 321, screw mandrel 322, slide bar 323, feed screw nut 328, slide block 325 and Deformable rack 326.Guide part 313 is provided with motor mounting plate 317 away from the lateral wall of an end of resettlement section 311, and motor 321 is fixedly mounted on motor mounting plate 317.On motor mounting plate 317, offer drive shaft hole 318.Motor 321 driving shafts are contained in drive shaft hole 318.Drive shaft hole 318 is provided with stage portion 319 near the sidewall of an end of resettlement section 311.
Motor 321 is fixed on the lateral wall of guide part 313 away from an end of resettlement section 311.The direction of motion of the driving shaft of motor 321 is vertical with the direction of motion of piston 330.
Screw mandrel 322 is connected with the driving shaft of motor 321.One end of screw mandrel 322 is contained in drive shaft hole 318 and is fixedly connected with motor 321 driving shafts.Shaft joint 324 accommodate with drive shaft hole 318 in, and be located at the junction of screw mandrel 322 and driving shaft, be fixedly connected with screw mandrel 322 with driving shaft by shaft joint 324.Drive shaft screw mandrel 322 rotates.The length of screw mandrel 322 and push rod 129 and the length that is greater than housing 310.
Bearing 327 is fixed on stage portion 319.Screw mandrel 322 passes bearing 327.Screw mandrel 322 is rotatably connected with motor mounting plate 317.Screw mandrel 322, through shaft joint 324 interconnect function with bearing 327, can prevent that screw mandrel 322 from shaking, and guarantees screw mandrel 322 motor mounting plate 317 that can not wear and tear.
Screw mandrel 322 is connected with the driving shaft of motor 321, and drive shaft screw mandrel 322 rotates.Particularly, screw mandrel 322 is connected by shaft joint 324 with driving shaft.
One end of slide bar 323 is fixedly connected with the end of screw mandrel 322 away from motor 321, and the other end of slide bar 323 is fixedly connected with the sidewall of guide part 313.
Feed screw nut 328 rotatably is located on screw mandrel 322.Screw mandrel 322 rotates, and drive nut moves along screw mandrel 322.
Slide block 325 slidably is located on slide bar 323.
Deformable rack 326 is contained in guide part 313.Deformable rack 326 comprises first connecting rod 326a, second connecting rod 326b and rotating shaft 326c.Rotating shaft 326c passes the middle part of first connecting rod 326a and second connecting rod 326b, and first connecting rod 326a and second connecting rod 326b are rotatably connected.First connecting rod 326a is rotatably connected near an end and the feed screw nut 328 of screw mandrel 322, and the other end of first connecting rod 326a is connected with piston 330, and slides along rail groove 331.Particularly, the end of first connecting rod 326a is rotatably connected by bearing pin 326d and feed screw nut 328, the other end slidably is connected with the rail groove 331 of piston 330 by bearing pin 326d, bearing pin 326d is contained in rail groove 331, the end away from first connecting rod 326a of bearing pin 326d is provided with boss, boss connects in the outside of rail groove 331, makes bearing pin 326d be limited in rail groove 331 and along rail groove 331 slidably.
Second connecting rod 326b is rotatably connected near an end and the slide block 325 of slide bar 323.The other end of second connecting rod 326b is connected with described piston 330, and along described rail groove 331 slidably.One end of the close piston 330 of second connecting rod 326b is identical with the connected mode of the connected mode of piston 330 and first connecting rod 326a, repeats no more herein.
Specifically in the present embodiment, on the sidewall of guide part 313, offer guide groove 313a, rotating shaft 326c can be contained in guide groove 313a, and can slide along guide groove 313a.
Motor 321 drives screw mandrel 322 and rotates, and feed screw nut 328 moves along screw mandrel 322, and feed screw nut 328 drives first connecting rod 326a and rotates with respect to second connecting rod 326b, and second connecting rod 326b band movable slider 325 slides along slide bar 323.The angle between first connecting rod 326a and second connecting rod 326b changes, and namely changes the length of Deformable rack 326.When slide block 325 moved in opposite directions or dorsad with feed screw nut 328, Deformable rack 326 elongated or shortened.Rotating shaft 326c slides along guide groove 313a, and guide groove 313a provides movement locus for rotating shaft 326c, guarantees that Deformable rack 326 can move along a straight line.And guide groove 313a plays certain supporting role to Deformable rack 326, guarantee the position of Deformable rack 326.Deformable rack 326 elongates or shortens drive piston 330 and advances or retreat.Particularly, the stroke of Deformable rack 326 can reach the bottom of resettlement section 311, and namely piston 330 can be fully by transfusion bag 30 compressions.
When screw mandrel 322 rotates counterclockwise, feed screw nut 328 is to intermediary movements, first connecting rod 326a and second connecting rod 326b close up to centre simultaneously, the contact jaw of first connecting rod 326a and second connecting rod 326b and piston 330 also closes up to centre simultaneously simultaneously, can push ahead piston 330, realize infusion process.Otherwise piston 330 moves backward, in order to using next time.
Be appreciated that motor 321 can be motor.When motor was linear electric motors, screw mandrel 322 can omit, and first connecting rod 326a directly is fixed on the drive end of linear electric motors, to change the shape of Deformable rack 326, with pushing piston 330 motions.
Please again consult Fig. 1 and Fig. 2, pressure sensing module 140 is located at piston near on the sidewall of resettlement section 111.For obtaining the force value between transfusion bag 10 and piston 130.
Be appreciated that pressure sensing module 140 can, for a plurality of, be evenly distributed on the sidewall of piston 130.And the precision of pressure sensing module 140 is one of percentage.Pressure sensing module 140 can be obtained the force value between transfusion bag 10 and piston 130 comparatively accurately.Pressure sensing module 140 is pressure transducer.
Be appreciated that displacement detection module 150 is resistor type displacement sensor, capacitive displacement transducer, grating scale or grating encoder.The precision of displacement detection module 150 is one of percentage.Displacement detection module 150 can obtain the positional information of piston 130 comparatively accurately.
When piston 130 moved extruding transfusion bag 10 forward, transfusion bag 10 produced counteracting forces, and this masterpiece is used on pressure transducer, and pressure sensing module 140 is obtained the force value between transfusion bag 10 and piston 130, the pressure while having realized the Real-Time Monitoring transfusion.When force value was greater than default force value, control module 170 was controlled driver module 120 and is stopped, and control alarm module 160 gives the alarm.When force value was less than or equal to default force value, control module 170 was controlled driver module 120 linear uniform motion.For example, if pipeline by bending, push down or patient's blood vessel has seepage, can pressure excessive, can be judged as obstruction, control module 170 is controlled driver modules 120 and is stopped advancing, and controls alarm module 160 and send warning.And when driver module 120 driven plunger 130 moved, piston 130 entered resettlement section 111, and compression transfusion bag 10, liquid is flowed out from tube for transfusion 11.When piston 130 moved forward and backward, displacement detection module 150 can detect the position of piston 130, was used for the Real-Time Monitoring transfusion speed.When in infusion-completed or process, abnormal stopped, displacement detection module 150 obtained the positional information of piston 130, and sent to control module 170.Control module 170 reception information, and control alarm module 160 and send warning, guarantee to have suffered infusion process safer.After alarm module 160 gave the alarm, the healthcare givers interfered infusion pump, so that infusion process is regulated.Above-mentioned infusion pump is without the related data that uses control module 170 direct regulating transfusion processes, to guarantee the safety of infusion process.
Be appreciated that control module 170 can be control operation circuit or microprocessor.
Liquid stopping clamp 190 is located on tube for transfusion 11.Liquid stopping clamp 190 is the stopping infusion process in time, guarantees the safety of infusion process.
When transfusion finished, alarm module 160 gave the alarm, and medical personnel can change or remove transfusion bag 10.Specifically in the present embodiment, but the sidewall of resettlement section 111 is Unclosing structure.By driver module 120, piston 130 is moved to the initial position of piston 130, and open resettlement section 111, transfusion bag 10 is placed within it.
Above-mentioned infusion pump has the following advantages at least compared to traditional infusion set:
1, compared to traditional finger pressure creeping motion type infusion pump, whole infusion process is the disposable process that transfusion bag is compressed, and does not exist and repeatedly pushes pipeline, avoids causing the risk that trueness error is large, tube for transfusion breaks.
2, the driver module in above-mentioned infusion pump is stepless motion, can make infusion pump have higher transfusion precision according to any regulating transfusion process of transfusion situation, guarantees safety and the medical effect of whole infusion process.
3, compared to the infusion pump of traditional built-in air bag, piston movement, by apparatus control, does not need to carry out the joint attended operation of air pump at every turn, reduce the complexity of operation, avoid causing gas leakage because connection is bad, and then cause infusion rate by substantial deviation, curative effect is influenced.
4, transfusion bag discord external air source contact, both completely cut off infection, prevents from effectively that extraneous gas from sneaking into to cause bubble danger.
5, infusion process is at the uniform velocity advancing, and transfusion speed does not have cyclic fluctuation.The motion of driving device driven plunger is the continuous linear motion, guarantees seriality and the degree of accuracy of infusion process.
6, above-mentioned infusion pump can be repeatedly used, and the medical disposable material cost is lower, has the higher market competitiveness, is convenient to marketing.
7, above-mentioned infusion pump can not pushed medicinal liquid fully in infusion process, can not damage medicinal liquid or blood component.
8, in infusion process, energy Real-Time Monitoring piston position, make infusion process safer.
9, in infusion process, the pressure between Real-Time Monitoring piston and transfusion bag, make infusion process safer.
10, transfusion bag adopts disposable infusion bag, and it can be compressed, and mate its profile, volume and resettlement section, has guaranteed the linear relationship of piston movement speed and liquid output speed, has guaranteed the transfusion speed precision.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an infusion pump, is characterized in that, comprising:
Housing, be the hollow tube-shape structure, and described housing comprises resettlement section and guide part, and described resettlement section, for accommodating transfusion bag, offers liquid outlet on the sidewall of described resettlement section, and tube for transfusion can pass from described liquid outlet;
Driver module, be located at the end of described guide part away from described resettlement section, and the drive end of described driver module is contained in described guide part, and can move back and forth along described guide part;
Piston, be located in described housing, and be connected with the drive end of described driver module, and described driver module drives described piston and reciprocatingly slides along described guide part, and described piston is moveable in described resettlement section, pushes described transfusion bag;
The pressure sensing module, be located on the sidewall of described piston away from described driver module, be used to obtaining the force value between described transfusion bag and described piston; And
Control module, be connected with described driver module and described pressure sensing module communication, and described control module receives the transfusion bag of described pressure sensing module measurement and the force value between piston, and according to this force value, control the kinestate of described driver module;
Wherein, described driver module drives described piston and moves, the described transfusion bag of described piston extruding, and described pressure sensing module is obtained the force value between described transfusion bag and described piston, when described force value was greater than default force value, described control module was controlled described driver module and is stopped; When described force value was less than or equal to described default force value, described control module was controlled described driver module and is at the uniform velocity advanced.
2. infusion pump according to claim 1, is characterized in that, described driver module comprises:
Motor, be fixed at the end of described guide part away from described resettlement section;
Screw mandrel, be connected with the driving shaft of described motor, and the described screw mandrel of described drive shaft rotates;
The feed screw nut, be located on described screw mandrel, and described screw mandrel rotates described feed screw nut and moves along described screw mandrel; And
Push rod, the one end is fixedly connected with described feed screw nut, and described feed screw nut moves and drives described pushrod movement, and the other end is fixedly connected with described piston;
Wherein, described motor forward or reverse, described push rod drives described piston-advance or retreats.
3. infusion pump according to claim 2, is characterized in that, the length of described screw mandrel and described push rod and the length that is greater than described housing.
4. infusion pump according to claim 1, is characterized in that, described driver module comprises:
Air pump; And
Air bag, be communicated with described air pump, and an end is fixed at the end of described guide part away from described resettlement section, and the other end is fixedly connected with described piston;
Wherein, described air pump is to described airbag aeration or bleed, and described air bag elongates or shortens, and described air bag drives described piston-advance or retreats.
5. infusion pump according to claim 4, is characterized in that, described air bag is the organ type air bag.
6. infusion pump according to claim 1, is characterized in that, offers rail groove on described piston, and the bearing of trend of described rail groove is perpendicular to the direction of motion of described piston;
Described driver module comprises: motor, be fixed on the lateral wall of described guide part away from an end of described resettlement section, and the direction of motion of the driving shaft of described motor is vertical with the direction of motion of described piston;
Screw mandrel, be connected with the driving shaft of described motor, and the described screw mandrel of described drive shaft rotates;
Slide bar, the one end is fixedly connected with the end of described screw mandrel away from described motor, and the other end of described slide bar is fixedly connected with the sidewall of described guide part; The feed screw nut, be located on described screw mandrel, and described screw mandrel rotates described drive nut and moves along described screw mandrel;
Slide block, slidably be located on described slide bar;
Deformable rack, be contained in described guide part, comprise first connecting rod, second connecting rod and rotating shaft, the middle part of described first connecting rod and described second connecting rod is passed in described rotating shaft, described first connecting rod and described second connecting rod are rotatably connected, described first connecting rod is rotatably connected near an end and the described feed screw nut of described screw mandrel, the other end of described first connecting rod is connected with described piston, and along described rail groove slidably, described second connecting rod is rotatably connected near an end and the described slide block of described slide bar, the other end of described second connecting rod is connected with described piston, and along described rail groove slidably,
Wherein, the described screw mandrel of described driven by motor rotates, described feed screw nut moves along described screw mandrel, described feed screw nut drives described first connecting rod and rotates with respect to described second connecting rod, described second connecting rod drives described slide block and slides along described slide bar, described slide block and described feed screw nut move in opposite directions or dorsad, and described Deformable rack elongates or shortens, and described Deformable rack drives described piston-advance or retreats.
7. infusion pump according to claim 1, is characterized in that, the shape of described resettlement section and the shape of described transfusion bag are complementary, and the volume of described resettlement section equates with the volume of described transfusion bag.
8. infusion pump according to claim 1, it is characterized in that, also comprise displacement detection module, described displacement detection module comprises displacer and displacement induction rod, described displacer slidably is located on described displacement induction rod, on the sidewall of described resettlement section, offer elongated slot, described displacement induction rod is located at the outside of described resettlement section and is horizontally placed on the top of described elongated slot, described displacer passes described elongated slot and is fixedly connected with described piston, the described displacer of described piston driving slides along described displacement induction rod, described displacement detection module can acquire the positional information of described piston.
9. infusion pump according to claim 8, is characterized in that, described displacement detection module is resistor type displacement sensor, capacitive displacement transducer, grating scale or grating encoder.
10. infusion pump according to claim 8, it is characterized in that, also comprise alarm module, described alarm module and the communication connection of described control module, described displacement detection module is connected with described control module communication, described displacement detection module obtains the positional information of described piston, and send to described control module, described control module receives information, when the positional information of the piston obtained when described displacement detection module is uniform motion, described control module is controlled described driver module and is normally moved, when the positional information of the piston obtained when described displacement detection module is halted state, described control module is controlled described alarm module and is sent warning.
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| CN201310375495.1A CN103405825B (en) | 2013-08-26 | 2013-08-26 | Transfusion pump |
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|---|---|---|---|
| CN201310375495.1A CN103405825B (en) | 2013-08-26 | 2013-08-26 | Transfusion pump |
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| CN103405825A true CN103405825A (en) | 2013-11-27 |
| CN103405825B CN103405825B (en) | 2015-05-13 |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014009A (en) * | 2014-06-15 | 2014-09-03 | 苏州瓦屋物联网科技有限公司 | Extrusion type infusion system with time reminding function and ultrasonic detecting function |
| CN104027866A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeezing type infusion device based on pressure detection and alarm indication |
| CN104027865A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeezing type fluid infusion system based on pressure detection and time reminding |
| CN104027862A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeeze infusion device with function of infrared detection |
| CN104027863A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Extrusion type infusion monitoring system based on ultrasonic flow velocity detection |
| CN104027870A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeeze fluid infusion system with function of time reminding |
| CN104027864A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeeze infusion device with function of pressure detection |
| CN106390269A (en) * | 2016-07-28 | 2017-02-15 | 中国人民解放军成都军区总医院 | Cerebrospinal fluid circulation assisting apparatus |
| CN107737388A (en) * | 2017-12-04 | 2018-02-27 | 李阅 | A kind of hematology blood transfusion auxiliary equipment for facilitating pressurized, heated |
| CN107802918A (en) * | 2017-11-16 | 2018-03-16 | 北京来普惠康医学技术有限公司 | A kind of dynamic action is in the transfusion control method and control system of decoction soft bag |
| CN108042235A (en) * | 2017-12-29 | 2018-05-18 | 卢乐 | A kind of ox abomasal displacement operation repositor of built-in collection line wheel |
| CN108181039A (en) * | 2017-12-29 | 2018-06-19 | 泉州市大西洋电力科技有限公司 | Hydrostatic sensor |
| CN108187177A (en) * | 2018-01-10 | 2018-06-22 | 卡斯纳（苏州）医疗设备有限公司 | A kind of console mode infusion support with alarm function |
| CN109331292A (en) * | 2018-11-21 | 2019-02-15 | 中国人民解放军陆军军医大学第二附属医院 | Movable infusion apparatus |
| CN109606970A (en) * | 2018-12-28 | 2019-04-12 | 浙江佳中智能家居科技有限公司 | A kind of air-conditioning refrigerant holding vessel |
| CN111470428A (en) * | 2020-05-08 | 2020-07-31 | 广东省特种设备检测研究院顺德检测院 | Verification device for crane monitoring system |
| CN111772915A (en) * | 2020-07-21 | 2020-10-16 | 北京大学第三医院（北京大学第三临床医学院） | Wearable automatic eye drop instillator |
| CN111939373A (en) * | 2020-08-21 | 2020-11-17 | 漳州市梵凯科技有限公司 | Suspension-free infusion machine |
| CN112023179A (en) * | 2020-08-27 | 2020-12-04 | 漳州市梵凯科技有限公司 | Extrusion type infusion machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673409Y (en) * | 2003-12-24 | 2005-01-26 | 北京天地和协科技有限公司 | New type medicinal liquid infusion pump |
| EP1964585A2 (en) * | 2007-03-02 | 2008-09-03 | CEWAC asbl - Center d'Etudes Wallon De l'Assemblage et du Contrôle des Matériaux | Standalone device and perfusion |
| CN201510596U (en) * | 2009-10-26 | 2010-06-23 | 陈翠花 | Quick transfusion pressurizer of flexible packaging liquid |
| CN201684248U (en) * | 2010-04-29 | 2010-12-29 | 上海德朗医疗设备有限公司 | Disposable infusion pump self-control switch |
| CN202161632U (en) * | 2011-07-08 | 2012-03-14 | 深圳圣诺医疗设备有限公司 | Microinjection pump |
| CN103068420A (en) * | 2010-04-01 | 2013-04-24 | 株式会社玗荣医疗器 | Liquid infusion apparatus |
| CN203763582U (en) * | 2013-08-26 | 2014-08-13 | 苏州鼎诺医疗设备有限公司 | Infusion pump |
-
2013
- 2013-08-26 CN CN201310375495.1A patent/CN103405825B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673409Y (en) * | 2003-12-24 | 2005-01-26 | 北京天地和协科技有限公司 | New type medicinal liquid infusion pump |
| EP1964585A2 (en) * | 2007-03-02 | 2008-09-03 | CEWAC asbl - Center d'Etudes Wallon De l'Assemblage et du Contrôle des Matériaux | Standalone device and perfusion |
| CN201510596U (en) * | 2009-10-26 | 2010-06-23 | 陈翠花 | Quick transfusion pressurizer of flexible packaging liquid |
| CN103068420A (en) * | 2010-04-01 | 2013-04-24 | 株式会社玗荣医疗器 | Liquid infusion apparatus |
| CN201684248U (en) * | 2010-04-29 | 2010-12-29 | 上海德朗医疗设备有限公司 | Disposable infusion pump self-control switch |
| CN202161632U (en) * | 2011-07-08 | 2012-03-14 | 深圳圣诺医疗设备有限公司 | Microinjection pump |
| CN203763582U (en) * | 2013-08-26 | 2014-08-13 | 苏州鼎诺医疗设备有限公司 | Infusion pump |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014009A (en) * | 2014-06-15 | 2014-09-03 | 苏州瓦屋物联网科技有限公司 | Extrusion type infusion system with time reminding function and ultrasonic detecting function |
| CN104027866A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeezing type infusion device based on pressure detection and alarm indication |
| CN104027865A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeezing type fluid infusion system based on pressure detection and time reminding |
| CN104027862A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeeze infusion device with function of infrared detection |
| CN104027863A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Extrusion type infusion monitoring system based on ultrasonic flow velocity detection |
| CN104027870A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeeze fluid infusion system with function of time reminding |
| CN104027864A (en) * | 2014-06-15 | 2014-09-10 | 苏州瓦屋物联网科技有限公司 | Squeeze infusion device with function of pressure detection |
| CN106390269A (en) * | 2016-07-28 | 2017-02-15 | 中国人民解放军成都军区总医院 | Cerebrospinal fluid circulation assisting apparatus |
| CN107802918A (en) * | 2017-11-16 | 2018-03-16 | 北京来普惠康医学技术有限公司 | A kind of dynamic action is in the transfusion control method and control system of decoction soft bag |
| CN107737388A (en) * | 2017-12-04 | 2018-02-27 | 李阅 | A kind of hematology blood transfusion auxiliary equipment for facilitating pressurized, heated |
| CN108042235A (en) * | 2017-12-29 | 2018-05-18 | 卢乐 | A kind of ox abomasal displacement operation repositor of built-in collection line wheel |
| CN108181039A (en) * | 2017-12-29 | 2018-06-19 | 泉州市大西洋电力科技有限公司 | Hydrostatic sensor |
| CN108042235B (en) * | 2017-12-29 | 2019-11-26 | 苏州南师大科技园投资管理有限公司 | A kind of ox abomasal displacement operation repositor of built-in collection line wheel |
| CN108181039B (en) * | 2017-12-29 | 2020-02-07 | 泉州市大西洋电力科技有限公司 | Hydraulic sensor |
| CN108187177A (en) * | 2018-01-10 | 2018-06-22 | 卡斯纳（苏州）医疗设备有限公司 | A kind of console mode infusion support with alarm function |
| CN108187177B (en) * | 2018-01-10 | 2020-07-24 | 王海洋 | Floor type infusion support with alarm function |
| CN109331292A (en) * | 2018-11-21 | 2019-02-15 | 中国人民解放军陆军军医大学第二附属医院 | Movable infusion apparatus |
| CN109606970A (en) * | 2018-12-28 | 2019-04-12 | 浙江佳中智能家居科技有限公司 | A kind of air-conditioning refrigerant holding vessel |
| CN111470428A (en) * | 2020-05-08 | 2020-07-31 | 广东省特种设备检测研究院顺德检测院 | Verification device for crane monitoring system |
| CN111470428B (en) * | 2020-05-08 | 2021-08-24 | 广东省特种设备检测研究院顺德检测院 | Verification device for crane monitoring system |
| CN111772915A (en) * | 2020-07-21 | 2020-10-16 | 北京大学第三医院（北京大学第三临床医学院） | Wearable automatic eye drop instillator |
| CN111939373A (en) * | 2020-08-21 | 2020-11-17 | 漳州市梵凯科技有限公司 | Suspension-free infusion machine |
| CN112023179A (en) * | 2020-08-27 | 2020-12-04 | 漳州市梵凯科技有限公司 | Extrusion type infusion machine |
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