CN2231552Y - Multifunctional transfusion heater and control device thereof - Google Patents

Abstract

A multifunctional transfusion heater and its control device relate to medical transfusion electric heating device, the heater includes a supporting cup in the preheating cavity of the shell, a transfusion cut-off device in the electric cavity of the shell, a liquid medicine weight sensitive switch at the lower part of the preheating cavity of the shell, a heating box under the supporting cup and an electric heating element in the inner groove of the supporting cup; the liquid medicine weight sensitive switch and the relay J₂After the coils are connected in series, the utility model controls the mutually parallel transfusion cut-off coils, the music circuit and the output signal generating circuit, integrates heating, temperature control, automatic stopping transfusion after the liquid medicine is finished and alarming, and is convenient for the hospital to monitor and care the transfusion patients in a centralized way.

Description

Multifunctional transfusion warmer and control device thereof

This utility model relates to a kind of medical infusion electric heater unit and control device thereof.

Transfusion is to rescue and treat one of important measures of patient.But in the winter time, behind cryogenic medicinal liquid input patient body, instant phenomenon can occur and cause many untoward reaction, as arm cold numbness etc., aggravation patient misery.For this reason, the patent of existing many transfusion electric heater units occurs with head it off.As patent ＂ transfusion self-acting thermos ＂ (patent No. 93237143.4), this thermostat mainly is made up of shell, transfusion temperature sensor, heater, heater temperature sensor, temperature controller.And for example patent " infusion thermostat " (patent No. 93238427.7) is made up of fixing band, PTC heater element.They are at common shortcoming: when medicinal liquid finishes, can not stop heating automatically, can not block infusion pipeline and warning automatically, and need to be equipped with in addition the infusion bottle suspension arrangement.In clinical practice, after medicinal liquid is totally lost,, easily cause backflow of blood to go into tube for transfusion if the nurse does not exist, make patient's fear; Also be not easy to medical personnel transfusion patient is concentrated supervision and nursing in time.

This utility model aim to provide have heating, temperature control, medicinal liquid finish and stop heating automatically, report to the police automatically and stop transfusion automatically, simultaneously to multifunctional transfusion warmer and the control device thereof of concentrating a triggering signal of monitoring arrangement output.

For achieving the above object, the technical solution that this utility model adopts is on the basis of existing infusion heating device, utilizes the weight of infusion bottle medicinal liquid to remove to control medicinal liquid weight sensitive switch, heating, temperature control circuit work when having made medicinal liquid, when medicinal liquid is totally lost, warning circuit work; The transfusion that utilizes the electric magnet principle to make goes to control the iron core action by device, and when medicinal liquid was not intact, iron core was failure to actuate, and transfusion can be carried out, when medicinal liquid finishes, and the iron core action, the air inlet of blocking-up transfusion air inlet pipe forces transfusion to stop, and reports to the police simultaneously.

This multifunctional transfusion warmer is made up of shell, lid, heater, connector, appliance electronic component, shell has two chambeies, one for placing the preheating cavity of infusion bottle, hypanthium, the electrical part chamber that another ends device for placement switch, transformator, speaker, electronic component, transfusion.The electrical part chamber is positioned at the preheating cavity outside.The side that flaky metallic elastic sheet is encircled in garden has arm, connector is aperture on arm, the metallic elastic sheet is horizontally fixed on the bottom of shell preheating cavity wall, below the metallic elastic sheet, one side of shell preheating cavity bottom, the metal spring leaf contact is housed, and they respectively have the lead connecting circuit, and mutual group becomes medicinal liquid weight sensitive switch; Transfusion is housed by device in shell electrical part chamber, it is a normally open type magnetic valve, it is made up of by head housing, line bag, moving iron core, spring, air inlet, wire wrapping is in housing, moving iron core is positioned within the line bag, line bag side has air inlet to end head, moving iron core is made up of two sections different Cylinders of thickness, be with spring at thin one section of moving iron core with the line parlor, by the diametric(al) of head one through hole that passes of transfusion air inlet pipe is arranged in air inlet, there is a moving thin end of iron core can stretch into wherein closed pore, closed pore and through hole vertical connection in air inlet vertically by a center; Hypanthium is positioned at the shell preheating cavity, it is the infundibulate housing, be placed on the metallic elastic sheet, have slinky spring to support between its upper end and the shell, the shape of hypanthium inwall is identical with the infusion bottle profile, hypanthium inwall shoulder has annular groove, groove is embedded around heating, and heating can be a resistance wire, or siliconit, or the pliability heating, the hypanthium lower end connects heating box; Heating box is formed by connecting by box body, lid hinge, and box body one side is equipped with temperature-sensing element (device), is embedded with heating in the box body, fills the insulation megohmite insulant therebetween, and the groove of heated transfusion pipe is arranged on insulation megohmite insulant surface.

The purpose of this utility model also needs to reach by following control circuit: this control circuit is by transformator, direct current regulation circuit, temperature-sensing element (device), temperature control circuit, relay, heating, music circuit, output signal generating circuit, transfusion is formed by device, wherein heating is connected the transformator outfan through the normally open contact of relay J 1 and J2, temperature-sensing element (device) is through the energising or the outage of temperature control circuit control relay J1 line bag, the line bag of relay J 2 and the outfan that is connected direct current regulation circuit after medicinal liquid weight sensitive switch is connected, transfusion is by device line bag, music circuit, output signal generating circuit three parallel connection is again with the outfan that is connected direct current regulation circuit after the normally closed interlock of relay J 2 is connected.

Fig. 1 is a structure drawing of device of the present utility model, Fig. 2 is the A-A profile among Fig. 1, Fig. 3 is the B-B profile among Fig. 1, Fig. 4 is the structure chart of transfusion of the present utility model by device, Fig. 5 is the C-C profile among Fig. 4, Fig. 6 is the structure chart of metallic elastic sheet of the present utility model, and Fig. 7 is a control circuit block diagram of the present utility model, and Fig. 8 is a control circuit schematic diagram of the present utility model.

At Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, among Fig. 7,1 is the preheating cavity lid, 2 is infusion bottle, 3 is shell, 4 is slinky spring, 5 is hypanthium, 6 is preheating cavity, 7 is heating, 8 is syringe needle, 9 is the metallic elastic sheet, 10 is heating box, 11 is tube for transfusion, 12 is the metal spring leaf contact, 13 are the transfusion air inlet pipe, 14 is attaching plug, 15 is fixed screw, 16 is on and off switch, 17 are the temperature control adjusting knob, 18 is power supply indicator, 19 is burner on light, 20 is speaker, 21 is the electrical part chamber, 22 is the level signal outfan, 23 is control circuit board, 24 for infusing by device, 25 is the air inlet pipe via hole, 26 is bracket holes, 27 is the heating box lid, 28 are the insulation megohmite insulant, 29 is heating, 30 is the heating box box body, 31 is temperature-sensing element (device), 32 air inlets that end device for infusing are by head, 33 is spring, 34 are the moving iron core of transfusion by device, 35 is closed pore, 36 are the line bag of transfusion by device, 37 are the housing of transfusion by device, 38 is the arm of metallic elastic sheet, 39 is the ring of metallic elastic sheet, 40 is fixing hole, 41 is mains transformer, 42 is regulator rectifier circuit, 43 is temperature control circuit, 44 is the line bag of relay J 1,45 is the line bag of relay J 2,46 is medicinal liquid weight sensitive switch, 47 is the normally closed interlock of relay J 2,48 is music circuit, 49 are outputs level signals generation circuit, 50 is the normally open contact of relay J 2,51 is the normally open contact of relay J 1.

Give explanation below in conjunction with accompanying drawing:

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 6, mechanical device of the present utility model comprises; The preheating cavity lid [1], shell [3], slinky spring [4], hypanthium [5], metallic elastic sheet [9], heating box [10], Metal spring leaf contact [12], fixed screw [15]. Shell [3] forms preheating cavity [6], electrical part chamber [21] and bracket holes [26], preheating cavity [6] is that axial symmetry is cup-shaped, and there is hole, a garden center, bottom, around There is a garden cannelure in the hole, garden, and electrical part chamber [21] are positioned at the outside of preheating cavity [6], for square, and support Hole [26] is on the sidewall of electrical part chamber [21]; Metallic elastic sheet [9] for have arm [38], the ring [39], The sheet metal of fixing hole [40], the fixing hole [40] that passes the arm end with screw is horizontally fixed on it The bottom of preheating cavity wall, and make it become the unsettled cantilever beam of garden ring end; Hypanthium [5] is the infundibulate shell Body is positioned at preheating cavity [6], and its upper inside wall is the same with infusion bottle [2] body profile, its inwall shoulder Section has one to be used for embedding around the garden annular groove of heating [7], and the garden of metallic elastic sheet [9] is passed in its underpart The hole, garden of annular distance and preheating cavity [6] bottom, and neck support is on metallic elastic sheet [9]; Four soft Spring [4] be separated by 90 ° of garden orphans, each is separately fixed at hypanthium [5] external wall of upper portion and preheating with its two ends On the wall of chamber [6], be used for stablizing hypanthium [5]; Metal spring leaf contact [12] is fixed on preheating cavity [6] bottom In the cannelure of garden, the position of its contact is when in the infusion bottle [2] enough soups being arranged, metallic elastic The free end of sheet [9] contacts with it because of flexural deformation, when soup is less than a certain limit, and metal elastic The property sheet [9] free end disengage with it because distortion disappears; Heating box [10] by box body [30], Hinged the forming of lid [27] is embedded with heating [29] in the box body [30], in the box insulate with insulation in the space Material [28] is filled, and has the hole of a laying temperature sensing element [31] in the side of box body [30], Have at the interface of box body [30] and lid [27] import in the upper end, outlet the lower end be used for put Put the groove of woven hose [11], the upper end of box body [30] links to each other with the lower end of hypanthium [5]; The preheating cavity lid [1] hinged with the upper end outer wall of preheating cavity [6]. Wherein, with metallic elastic sheet [9] and metal spring leaf Contact [12] links to each other with the two ends of circuit respectively, just consists of a soup weight sensitive switch. Adopt Whether this mechanical device just can detect soup and be totally lost, and whether control heater circuit, warning circuit Work.

With reference to Fig. 2, transfusion choking device [24] is a normally open type magnetic valve, is fixed on the electrical part chamber [21] bottom. With reference to Fig. 4, Fig. 5, the transfusion choking device [24] by housing [37], line bag [36], Spring [33], moving iron core [34], air inlet cut-off head [32] form; Line bag [36] is contained in housing [37] In, moving iron core [34] is positioned within the line bag, and moving iron core [34] is by thick, thin two sections different Cylinders Form, overlapping between moving iron core [34] thin a section and line bag [36] has spring [33], by spring [33], Moving iron core [34], line bag [36], housing [37] form the low-voltage direct electromagnet; Air inlet cut-off head [32] be cylindrical body, be fixed on coaxially upper that end by moving iron core [34] taper end of housing [37], Its waist radially has an air inlet pipe via hole [25], axially have one with closing of intersecting of air inlet pipe via hole Hole [35], and the motion of in closed pore [35], advancing and retreat of the taper end of moving iron core [34]. During transfusion, will fail The syringe needle of liquid air inlet pipe [13] inserts in the plug of infusion bottle [2], and the other end passes air inlet cut-off head [32] air inlet pipe via hole [25] when line bag [36] is switched on, moves iron core [34] because of magneticaction, Its taper end is got in the closed pore [35] and is made perfusion air pipe [13] shrivel and block, and air can not advance Enter infusion bottle [2], transfusion namely is stopped; When line bag [36] cut off the power supply, moving iron core [34] was because of spring [33] effect and withdraw from closed pore [35], perfusion air pipe [13] is not blocked, and transfusion can be carried out.

With reference to Fig. 7, control circuit is by attaching plug [14]; Power transformer [41]; With power supply The power switch [16] of transformer [41] armature winding series connection; The power end transformer [41] that is in parallel The regulator rectifier circuit of low-voltage output [42] and power supply indicator [18]; It is steady that power end is connected on rectification The temperature control circuit [43] of volt circuit [42] output; Be connected in temperature control circuit [43] temperature signal input Temperature-sensing element (device) [31]; Be connected in the relay J 1 of the output control signal end of temperature control circuit [43] Line bag [44]; Be in series at the line bag [45] of the relay J 2 of regulator rectifier circuit [42] output With soup weight sensitive switch [46]; The line bag [36] of the transfusion choking device that power end is parallel with one another, Music circuit [48] and outputs level signals produce circuit [49], and steady with their rectifications that is in series The normally closed interlock [47] of the relay J 2 of volt circuit [42] output; Burner on light parallel with one another [19], heating [7] and heating [29], and with they power transformers [41] that is in series The normally open contact [50] of relay J 2 of low-voltage output and normally open contact [51] group of relay J 1 Become. Wherein, by relay J 2 (containing line bag [45], normally open contact [50], normally closed interlock [47]) and Soup weight sensitive switch [46] forms the Weight control circuit partly; By the line bag [36] of transfusion choking device, Music circuit [48], outputs level signals produce circuit [49] and form warning circuit partly; By power supply Plug [14], power switch [16], power transformer [41], regulator rectifier circuit [42], power supply Indicator lamp [18] forms power supply partly; By burner on light [19], heating [7], heating [29] form heater circuit partly; By temperature-sensing element (device) [31], temperature control circuit [43], relay J1 (containing line bag [44], normally open contact [51]) forms temperature-adjusting circuit partly. In control circuit, electricity Source transformer [41] supplies whole circuit usefulness, music circuit [48] in order to the low tension that produces below 36 volts Report to the police in order to produce musical sound, outputs level signals produces circuit [49] and concentrates prison in order to produce to trigger The high level output signal of showing device, regulator rectifier circuit [42] attach most importance to amount control circuit partly, control Circuit temperature part and warning circuit partly provide dc source. In control circuit, in order to control newspaper Police and transfusion are connected on the normally closed interlock [47] of relay J 2 the power supply input of warning circuit part In the loop; In order to control heater circuit partly, the normally open contact [50] of relay J 2 is connected on adds In the heater circuit power supply input circuit partly. Thereby can realize that heated for controlling temperature, soup to soup are complete The functions such as Bi Zidong stopped heating, automatic alarm, automatic stopping infusion, its control principle is: when When in the infusion bottle [2] enough soups being arranged, soup weight sensitive switch [46] is " closure " state, Turn on the power switch this moment [16], then closed, the normally closed interlock [47] of the normally open contact of relay J 2 [50] Disconnect, so warning circuit is not partly worked because of electric power disconnection, heater circuit is partly because of power connection Work; When the soup in the infusion bottle [2] is less than a certain limit, soup weight sensitive switch [46] Become the "off" state, cause normally closed interlock [47] closure of relay J 2, normally open contact [50] Disconnect, so heater circuit partly quits work because of electric power disconnection, warning circuit partly connects because of power supply Logical and work, sounding alarm and provide a high trigger signal to concentrated monitor on the one hand Output, the choking device [24] of infusing on the other hand action, blocking-up infusion pipeline, stopping infusion.

With reference to Fig. 1, the control circuit board [23] that is contained in the electrical part chamber [21] is made up of mains transformer [41], regulator rectifier circuit [42], temperature control circuit [43], music circuit [48], outputs level signals generation circuit [49], relay J 1, relay J 2 etc.On and off switch [16], temperature control adjusting knob [17], power supply indicator [18], burner on light [19] are installed on the face wall of electrical part chamber [21], the Yang Shengqi [20] of music circuit [48] and the temperature-adjusting potentiometer of temperature control circuit [43] are drawn with lead in the face wall that is installed in electrical part chamber [21], and temperature control adjusting knob [17] is fixed on the axle of temperature-adjusting potentiometer; The outfan [22] that outputs level signals produces circuit is fixed on the sidewall of electrical part chamber [21], and temperature-sensing element (device) [31] is installed in the hole of hinge side of heating box box body [30].The heating of using do preheating [7] adopts the pliability heating, or resistance wire, or siliconit, and the heating of using as constant temperature [29] adopts pliability heating or resistance wire; Temperature-sensing element (device) [31] adopts critesistor or silicon triode.

During use, the bracket holes [26] of this infusion warmer is passed the column of drip stand, fixing with fixed screw [15].

During use, the infusion bottle [2] that will fill medicinal liquid is earlier touched the pillow and is put into hypanthium [5], and the lid [1] that closes inserts the syringe needle [8] of the tube for transfusion [11] of disposable transfusion device and transfusion air inlet pipe [13] plug of infusion bottle [2]; Open the lid [27] of heating box [10], tube for transfusion [11] is embedded groove, the lid that closes [27], the inlet end of the air inlet pipe of will infusing again [13] insert transfusion in the air inlet pipe via hole [25] of device [24]; Rotate temperature control adjusting knob [17] then to the temperature that need be heated to, and then turn on the power switch [16], just begin heating, constant temperature and infused.Represent that when the music sound medicinal liquid is totally lost, only need shut on and off switch [16], just can change infusion bottle and operate.

This utility model has following advantage:

(1) function is many.Except that heating, the temperature control, also have medicinal liquid and finish and stop heating automatically, stop transfusion and send function such as musical sound warning.

(2) have the high level signal output function, be convenient to hospital and concentrate prison to show and nursing in time transfusion patient.

(3) do not need to be equipped with in addition the infusion bottle suspension arrangement.

This utility model is suitable for infusion bottle and disposable transfusion device transfusion, and has the occasion of 220 volts of single phase alternating current power supplies.

Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 8 are embodiment of the present utility model.Wherein, the top maximum inner diameter of the hypanthium among Fig. 1 [5] is 80-85mm.K1 among Fig. 8 is on and off switch [16]; B is mains transformer [41], and it is output as and exchanges 24V; Form regulator rectifier circuit [42] by diode D1-D4, capacitor C 1, C2, C3, C4, integrated package 7812; K2 is a medicinal liquid weight sensitive switch [46]; J2 is the line bag [45] of relay J 2; J21 is the normally closed interlock [47] of relay J 2; J22 is the normally open contact [50] of relay J 2; Form temperature control circuit [43] by integrated package 555, resistance R 1, R3, R4, potentiometer R2, capacitor C 5; Critesistor RT is temperature-sensing element (device) [31]; J1 is the line bag [44] of relay J 1, and J11 is the normally open contact [51] of relay J 1; Form music circuit [48] by resistance R 5, R6, R7, R8, R9, audion 9013, audion 3AX81, Yang Sheng device Y; RL1 is the line bag [36] of transfusion by device; Form outputs level signals by resistance R 10, R11 and produce circuit [49], wherein a.b is level signal outfan [22]; RL2 is pliability heating [7]; RL3 is resistance wire heating [29]; L1 is power supply indicator [18]; L2 is burner on light [19].

Claims (2)

1, a kind of multifunctional transfusion warmer, comprise shell, lid, heater, connector, appliance electronic component, shell has two chambeies, one for placing infusion bottle, the preheating cavity of hypanthium, another is for placing switch, transformator, speaker, electronic component, transfusion is by the electrical part chamber of device, the electrical part chamber is positioned at the preheating cavity outside, it is characterized in that the garden encircles a side of flaky metallic elastic sheet arm is arranged, connector is aperture on arm, the metallic elastic sheet is horizontally fixed on the bottom of shell preheating cavity wall, below the metallic elastic sheet, one side of shell preheating cavity bottom, the metal spring leaf contact is housed, and they respectively have the lead connecting circuit, and mutual group becomes medicinal liquid weight sensitive switch; Transfusion is housed by device in shell electrical part chamber, it is made up of by head housing, line bag, moving iron core, spring, air inlet, wire wrapping is in housing, moving iron core is positioned within the line bag, line bag side has air inlet to end head, moving iron core is made up of two sections different Cylinders of thickness, be with spring at thin one section of moving iron core with the line parlor, by the diametric(al) of head the through hole that passes of transfusion air inlet pipe is arranged in air inlet, there is a moving thin end of iron core can stretch into wherein closed pore, closed pore and through hole vertical connection in air inlet vertically by a center; Hypanthium is positioned at the shell preheating cavity, and it is the infundibulate housing, is placed on the metallic elastic sheet, between its upper end and the shell slinky spring is arranged, the shape of hypanthium inwall is identical with the infusion bottle profile, and hypanthium inwall shoulder has annular groove, groove is embedded around heating, and the hypanthium lower end connects heating box; Heating box is formed by connecting by box body, lid hinge, and box body one side is equipped with temperature-sensing element (device), is embedded with heating in the box body, fills the insulation megohmite insulant therebetween, and the groove of heated transfusion pipe is arranged on insulation megohmite insulant surface.

2, the described control device of a kind of enforcement claim 1, comprise transformator, direct current regulation circuit, temperature-sensing element (device), temperature control circuit, relay, heating, music circuit, output signal generating circuit, transfusion is by device, wherein heating is connected the transformator outfan through the normally open contact of relay J 1 and J2, temperature-sensing element (device) is through the energising or the outage of temperature control circuit control relay J1 line bag, line bag that it is characterized in that relay J 2 and the outfan that is connected direct current regulation circuit after medicinal liquid weight sensitive switch is connected, transfusion is by device line bag, music circuit, output signal generating circuit three parallel connection is again with the outfan that is connected direct current regulation circuit after the normally closed interlock of relay J 2 is connected.

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