CN2702746Y - Pump sheet creeping device for medical infusion pump with heating device - Google Patents
Pump sheet creeping device for medical infusion pump with heating device Download PDFInfo
- Publication number
- CN2702746Y CN2702746Y CN 200420025119 CN200420025119U CN2702746Y CN 2702746 Y CN2702746 Y CN 2702746Y CN 200420025119 CN200420025119 CN 200420025119 CN 200420025119 U CN200420025119 U CN 200420025119U CN 2702746 Y CN2702746 Y CN 2702746Y
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- China
- Prior art keywords
- pump
- infusion
- pressing plate
- creeping
- sheet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a pump sheet creeping device for medical infusion pumps, which is provided with a heating device and is composed of a tube pressing plate [1], a set of parallel creeping pump sheets [7] and a drive structure. A set of parallel creeping pump sheets [7] is arranged along the front side of the tube pressing plate [1] in the length direction under the working state, forming a creeping mechanism to squeeze an infusion pipe [6]. The utility model is characterized in that a set of electrical heating devices and temperature control devices are added to the infusion pump, an electric heating element and a temperature sensor are installed in the tube pressing plate of the pump, and a heating control circuit is adopted to cause the infusion pump to heat the infusion pipe automatically through the tube pressing plate in a low temperature environment so as to keep the elasticity of the infusion pipe and finally realize the goal of accurate infusion. The project thoroughly changes a series of disadvantages of infusion pump, which are caused by the infusion pipe in the low temperature environment. The utility model is an ideal, safe and reliable infusion device. The utility model does not need to appoint a special infusion pipe when the infusion pump is used, and can be applicable to various present ordinary infusion pipes and bring convenience for use and popularization.
Description
Technical field
This utility model relates to infusion pump in medical application, is specifically related to a kind of pump sheet creeping device with heater, and this device heats and temperature control the tube for transfusion of wriggling part under low temperature environment automatically, keeps the elasticity of tube for transfusion, thereby guarantees the operating accuracy of infusion pump.
Background technology
The tradition infusion is utilize the force of liquid to do power, and patient is carried out venous transfusion.This infusion model is difficult to control transfusion speed and amount of infusion steady in a long-term, and is high or need the occasion of strict control transfusion speed and amount of infusion for the ask for something precision, is difficult to meet the demands.
Infusion pump is a kind of armarium of safe, accurate control transfusion, it uses modern Control Technique of Microcomputer, the pump sheet is wriggled up and down with rule in certain sequence, push liquid in the tube for transfusion successively, thereby reach the purpose of accurate control transfusion with the certain speed directed flow.Because its control accuracy height, quantitatively accurately, safety is good, is in the stage of applying in China now.But the pump sheet of infusion pump wriggling has but been run into such problem in actual applications in the market, promptly all need adopt special-purpose tube for transfusion could realize its operating accuracy, otherwise its quantitative accuracy is difficult to guarantee under low temperature environment.Experimental study shows that its reason is that the common transfusion pipe of domestic production compares with external like product at material and process aspect that there is some difference, the tube wall that causes infusing is inconsistent with variation of ambient temperature elasticity, particularly infusion pump is infused under low temperature environment for a long time, can produce the leakage and the phenomenon of error progressively.And infusion pump need be specified special-purpose tube for transfusion, undoubtedly promoting the use of of hospital and infusion pump is all brought certain limitation.
This utility model is the weak point that occurs in the infusion pump use in the market, provide a kind of can be automatically to tube for transfusion heat, temperature control, be fit to use the pump sheet creeping device of plain edition tube for transfusion.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of infusion pump in medical application pump sheet creeping device with heater, constitute by pipe pressing plate, one group of parallel peristaltic pump sheet and drives structure arranged side by side, one group of parallel peristaltic pump sheet arranged side by side is managed pressing plate front length direction layout in the lower edge in working order, form the creeping mechanism of extruding tube for transfusion, establish an electric heater on the pipe pressing plate, this electric heater is connected with power supply by lead.
Related content and change interpretation in the technique scheme are as follows:
1, in the such scheme, described electric heater is the general name of a class heating, comprising heating wire (resistance), ceramic heating element, mica sheet etc.
2, in the such scheme, in order to realize temperature auto control, also be provided with a temperature sensor on the pipe pressing plate, this temperature sensor is connected with a control circuit.
3, in the such scheme, in order to make electric heater and the temperature sensor arrangement on the pipe pressing plate more effective, can offer groove at the pipe pressing plate back side, electric heater and temperature sensor all are located in the groove, the remaining space of groove adopts filling insulating material, realize insulation and fixation with this, electric heater and temperature sensor are drawn with lead, and are connected with heating control circuit respectively.
Heating control circuit described here is made up of single-chip microcomputer LPC767, two critesistor, two resistance and an electrical switch.Two critesistor form bridge-type with two resistance and are connected, wherein, arrange with the quasi-resistance diagonal angle, in four contacts of bridge architecture, two diagonal angle contacts connect positive source and negative pole, two input ports of other two diagonal angle contact order sheet machines, one of two critesistor is located in the pipe pressing plate, and another is exposed in the air; Electric heater and electrical switch are connected with power supply and are constituted the loop, and the control end of its electrical switch is connected with an output port of single-chip microcomputer.
This utility model operation principle is: increase a cover electrical heating, attemperating unit in infusion pump, and electrical heating elements and temperature sensor be installed in the pipe pressing plate of pump, adopt heating control circuit that infusion pump is heated tube for transfusion automatically by the pipe pressing plate under low temperature environment, keep the elasticity of tube for transfusion with this, the final accurately purpose of transfusion that realizes.
Because the technique scheme utilization, this utility model compared with prior art has following advantage:
1, this programme thoroughly changed infusion pump under low temperature environment because a series of deficiencies that the tube for transfusion problem produces, be a kind of ideal, safe and reliable infusion set.Use this infusion pump need not specify special-purpose tube for transfusion, can be suitable for existing various common transfusion pipes, give and use and popularization offers convenience.
2, this programme is being made on the experimentation basis repeatedly, and its simplicity of design is skillfully constructed, and has especially thoroughly solved in the past by the caused control accuracy problem of tube for transfusion difference, and this device Clinical Practice proof result of use is remarkable.
Description of drawings
Accompanying drawing 1 is this utility model structural representation;
Accompanying drawing 2 is this utility model heating control circuit schematic diagram.
In the above accompanying drawing: 1, pipe pressing plate; 2, temperature sensor; 3, electric heater; 4, filler; 5, lead; 6, tube for transfusion; 7, peristaltic pump sheet; R1, critesistor; R4, critesistor; R2, resistance; R3, resistance; R5, resistance; T1, audion.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment: referring to attached illustrated in figures 1 and 2, a kind of infusion pump in medical application pump sheet creeping device with heater is made up of pipe pressing plate 1, one group of parallel peristaltic pump sheet 7, drives structure and heating control apparatus arranged side by side.One group of parallel peristaltic pump sheet 7 arranged side by side is managed pressing plate 1 front length direction layout in the lower edge in working order, forms the creeping mechanism of extruding tube for transfusion 6.In order to overcome existing pump sheet creeping device under low temperature environment, because the caused control accuracy problem of difference of tube for transfusion 6, mill a groove at the back side of aluminum tube pressing plate 1, merit of installation is 0～10 watt a electric heater 3 (heating wire) in the groove, in groove, establish simultaneously a temperature sensor 2 (critesistor R4), the remaining space of groove adopts the filling insulating material encapsulation, and described insulation filling material is 140 purpose silicon powders and 70 purpose quartz sands.Electric heater 3 and temperature sensor 2 usefulness leads 5 are drawn, and are connected with heating control circuit respectively.Make one section tube for transfusion 6 heating automatically under certain low temperature of tube for transfusion and peristaltic pump sheet 7 contact positions, keep the elasticity of tube for transfusion 6, the pipe inner liquid medicine is in more than the null solution point, its heating power is realized by the heating control circuit in the infusion pump.
Described heating control circuit is made up of single-chip microcomputer Lpc767, two critesistor R1, R4, two resistance R 2, R3 and audion T1.Two critesistor R1, R4, two resistance R 2, R3 form bridge-types and connect, and see shown in Figure 2ly, arrange with the quasi-resistance diagonal angle that wherein promptly two critesistor R1, R4 diagonal angles are arranged, two resistance R 2, R3 diagonal angles are arranged.In four contacts of bridge architecture, two diagonal angle contacts connect positive source and negative pole, other two diagonal angle contact a1, a2 meet two input port P05, P06 of single-chip microcomputer, critesistor R4 is embedded in the pipe pressing plate 1 as temperature sensor 2, another critesistor R1 is installed on the electric appliance circuits plate, and is exposed in the air.The colelctor electrode of audion T1 connects+the 15V power supply through electric heater 3, grounded emitter, and base stage meets single machine output end P07 as control end through resistance R 5.
Heating control circuit operation principle: R1 and R4 are temperature sensor, and R1 is installed on the electric appliance circuits plate of pump, sense ambient temperature, R4 is located in the pipe pressing plate 1, during work, the magnitude of voltage that a1 is ordered can be with variation of ambient temperature, and the magnitude of voltage that a2 is ordered can change according to the variations in temperature in the pipe pressing plate 1.The magnitude of voltage that a1 and a2 are ordered is delivered to P05 and the P06 port of single-chip microcomputer Lpc767 respectively.Lpc767 is the microcontroller that philips company produces, comprising forming by four tunnel analog inputs and 8 successive approximation ADC, adopted two road AD input in this example, as monitoring of environmental temperature and pipe pressing plate 1 temperature, come heating power on the control valve pressing plate 1 according to different ambient temperatures, the effect of heating automatically when realizing low temperature.
Claims (4)
1, a kind of infusion pump in medical application pump sheet creeping device with heater, constitute by pipe pressing plate [1], one group of parallel peristaltic pump sheet [7] arranged side by side and drives structure, one group of parallel peristaltic pump sheet [7] arranged side by side is managed pressing plate [1] front length direction layout in the lower edge in working order, form the creeping mechanism of extruding tube for transfusion [6], it is characterized in that: establish an electric heater [3] on the pipe pressing plate [1], this electric heater [3] is connected with power supply by lead.
2, pump sheet creeping device according to claim 1 is characterized in that: also be provided with a temperature sensor [2] on the described pipe pressing plate [1], this temperature sensor [2] is connected with a control circuit.
3, pump sheet creeping device according to claim 1, it is characterized in that: described pipe pressing plate [1] back side is provided with groove, electric heater [3] is located in the groove, also be provided with temperature sensor [2] in the groove, the remaining space of groove adopts filling insulating material, electric heater [3] and temperature sensor [2] are drawn with lead [5], and are connected with heating control circuit respectively.
4, pump sheet creeping device according to claim 3 is characterized in that: described heating control circuit comprises single-chip microcomputer Lpc767, two critesistor [R1, R4], two resistance [R2, R3] and an electrical switch; Two critesistor [R1, R4], two resistance [R2, R3] form bridge-type and connect, wherein arrange with the quasi-resistance diagonal angle, in four contacts of bridge architecture, two diagonal angle contacts connect positive source and negative pole, two input ports of other two diagonal angle contact order sheet machines, one of two critesistor [R1, R4] is located on the pipe pressing plate [1], and another is exposed in the air; Electric heater [3] and electrical switch are connected with power supply and are constituted the loop, and the control end of its electrical switch is connected with an output port of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025119 CN2702746Y (en) | 2004-03-01 | 2004-03-01 | Pump sheet creeping device for medical infusion pump with heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025119 CN2702746Y (en) | 2004-03-01 | 2004-03-01 | Pump sheet creeping device for medical infusion pump with heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2702746Y true CN2702746Y (en) | 2005-06-01 |
Family
ID=34770887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420025119 Expired - Lifetime CN2702746Y (en) | 2004-03-01 | 2004-03-01 | Pump sheet creeping device for medical infusion pump with heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2702746Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836480A (en) * | 2011-06-24 | 2012-12-26 | 苏州市力得医疗器械设备厂 | High-precision intelligent infusion pump |
| CN103370541A (en) * | 2011-07-28 | 2013-10-23 | 普泰株式会社 | Fluid-conveying drive unit, and control program for fluid-conveying drive unit |
| CN104162216A (en) * | 2014-09-04 | 2014-11-26 | 西安力邦医疗电子有限公司 | Intelligent temperature control infusion pump |
| CN110141721A (en) * | 2019-04-30 | 2019-08-20 | 深圳市刚竹医疗科技有限公司 | Infusion device, infusion method, computer equipment and computer readable storage medium |
| CN110269974A (en) * | 2019-06-27 | 2019-09-24 | 孙小芳 | A kind of endocrine is pumped with constant-temp transfusion |
| CN113577462A (en) * | 2021-06-20 | 2021-11-02 | 三河科达实业有限公司 | Infusion heating system in portable universal life support system adapting to field environment |
-
2004
- 2004-03-01 CN CN 200420025119 patent/CN2702746Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836480A (en) * | 2011-06-24 | 2012-12-26 | 苏州市力得医疗器械设备厂 | High-precision intelligent infusion pump |
| CN103370541A (en) * | 2011-07-28 | 2013-10-23 | 普泰株式会社 | Fluid-conveying drive unit, and control program for fluid-conveying drive unit |
| CN104162216A (en) * | 2014-09-04 | 2014-11-26 | 西安力邦医疗电子有限公司 | Intelligent temperature control infusion pump |
| CN110141721A (en) * | 2019-04-30 | 2019-08-20 | 深圳市刚竹医疗科技有限公司 | Infusion device, infusion method, computer equipment and computer readable storage medium |
| CN110269974A (en) * | 2019-06-27 | 2019-09-24 | 孙小芳 | A kind of endocrine is pumped with constant-temp transfusion |
| CN110269974B (en) * | 2019-06-27 | 2021-04-13 | 孙小芳 | Constant-temperature infusion pump for endocrine |
| CN113577462A (en) * | 2021-06-20 | 2021-11-02 | 三河科达实业有限公司 | Infusion heating system in portable universal life support system adapting to field environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140301 Granted publication date: 20050601 |