CN203507226U - Infusion pump - Google Patents

Abstract

The utility model relates to an infusion pump of an incorrect-load-preventing device. The infusion pump comprises a shell provided with a groove part which is used for receiving a sliding fixture, and further comprises a door which is movably connected to the shell and can move between an opening position and the closing position. A stop pin is movably connected to the shell and is connected with the sliding fixture of a feeding device, wherein the stop pin can move between a lock position and a release position. At the lock position, the stop pin enables the sliding fixture to be connected in the groove part; at the release position, the stop pin is disconnected from the sliding fixture. When the door moves to the opening position, the stop pin moves to the lock position and fixes the sliding fixture in the groove part; when the door moves to the closing position, the stop pin moves to the release position and releases the sliding fixture from the groove part. The infusion pump further comprises a feeding device incorrect load sensor. According to the infusion pump, a human error can be helped to be minimized, and the feeding device can be guided to be correctly connected with the infusion pump.

Description

Infusion pump

Technical field

This utility model relates to a kind of system for preventing that transfusion system mistake is carried, and relates more specifically to a kind of like this system, and it comprises the anti-error year device that makes feeder unit can correctly be connected to infusion pump.

Background technology

Transfusion system by the FLUID TRANSPORTATION that comprises nutrient substance and medicine to patient.This system comprises pump, thereby described pump is programmed the metering to be scheduled to and to patient, supplies with these fluids at the interval of appointment.The mistake that fluid feeds by transfusion system can be caused by a lot of reasons, comprises system is carried or be connected to by mistake to feeder unit mistake.These problems can cause to patient excessively transfusion or transfusion not enough, miss treatment or delay treatment, health and rehabilitation that above problem can appreciable impact patient.Therefore, built vertical guide is to strengthen the safety of transfusion system.

Clinicist conventionally carries out several safety inspections (such as " line management " or " circuit tracking ") and connects or mistake year to assist to eliminate by mistake.Especially the complexity along with patient's overall transfusion system improves, and sets up this transfusion system and detailed connection management program increases time burden to clinicist, and easily occurs mistake.That is to say, a plurality of feeder units in transfusion system, medicine, node, access interface, pump channel have improved and have carried out the required time quantum of transfusion system safety inspection, and have introduced the chance of extra appearance mistake.

Therefore, need to a kind ofly when reducing mistake, assist feeder unit to be correctly connected to the system of transfusion system.

Utility model content

This infusion pump comprises anti-error year device, provides the object of described anti-error year device to be when help minimizes mistake to guide feeder unit to be correctly connected to infusion pump.

In embodiment, be provided for transmitting by thering is the feeder unit of sliding clamp the infusion pump of fluid, wherein said pump comprises: be limited with the housing of slot part, described slot part is disposed for receiving sliding clamp; Be connected to movably the door of housing, wherein said door can move between open position and closed position.Stop pin is connected to movably housing and is configured to engage sliding clamp.Described stop pin can move between latched position and off-position, and in described latched position, stop pin engages sliding clamp and described sliding clamp is fixed in groove, and in described off-position, stop pin is disengaged from sliding clamp.In operation, when door moves to open position, stop pin moves to latched position and sliding clamp is fixed in slot part, and when door moves to closed position, stop pin moves to off-position and sliding clamp is discharged from slot part.

In another embodiment, be provided for transmitting by the conduit of feeder unit the infusion pump of fluid, wherein pump comprises housing and the pumping mechanism that is mounted to housing.Pumping mechanism comprises: a plurality of pumpings finger, in order, the motor of mobile described a plurality of pumpings finger reciprocally, and be configured in the sensor that conduit detected when conduit is correctly arranged on pumping mechanism.When sensor does not detect the conduit being arranged on pumping mechanism, described sensor stops operating motor.

As can be seen here, it is a kind of for transmit the infusion pump of fluid by feeder unit that this utility model provides, described feeder unit has for controlling fluid by the mobile sliding clamp of feeder unit, and described infusion pump comprises: be limited with the housing of slot part, described slot part is configured to receive sliding clamp, be connected to movably the door of described housing, described door can move between open position and closed position, be connected to movably described housing and be configured to engage the stop pin of sliding clamp, described stop pin can move between latched position and off-position, in described latched position, described stop pin engages sliding clamp and be fixed in described slot part, in described off-position, described stop pin and sliding clamp are disengaged, wherein, in the situation that described door moves to described open position, described stop pin moves to described latched position and sliding clamp is fixed in described slot part, and in the situation that described door moves to described closed position, described stop pin moves to described off-position and discharges sliding clamp from described slot part.

According to a preferred embodiment of the present utility model, described infusion pump also comprises fixture locking component, described fixture locking component is connected to movably described housing and comprises described stop pin, described fixture locking component also comprises contact plug, described contact plug is configured to engage described door in the situation that described door moves to described closed position, and from described door, be disengaged in described open position in the situation that at described door, the situation that wherein said fixture locking component engages described door at described contact plug is displaced downwardly to described off-position, and be displaced downwardly to described latched position at described contact plug and described situation about being disengaged.

According to a preferred embodiment of the present utility model, described door comprises actuator pin, described actuator pin is configured to engage in described closed position in the situation that at described door described contact plug, and is disengaged with described contact plug in described open position in the situation that at described door.

According to a preferred embodiment of the present utility model, described infusion pump also comprises door locked member, described door locked member is arranged in described housing, and described door locked member is configured to lock described door in the situation that described stop pin moves to described off-position and in the situation that described stop pin moves to described latched position, discharges described door.

According to a preferred embodiment of the present utility model, described door locked member comprises opening, and described door comprises the latch pin that is configured to pass described opening, described latch pin passes described opening and is fixed by described door locked member in the situation that described stop pin moves to described off-position, and described latch pin discharges from described opening in the situation that described stop pin moves to described latched position.

According to a preferred embodiment of the present utility model, described door locked member comprises two openings, and described door comprises two latch pins, described two latch pins are configured to respectively through the corresponding opening in described two openings, in the situation that described stop pin moves to described off-position, described latch pin passes corresponding opening and is fixed by described door locked member, and in the situation that described stop pin moves to described latched position, described latch pin discharges from described opening.

According to a preferred embodiment of the present utility model, described infusion pump also comprises the door locked member being arranged on movably in described housing, the first end of described door locked member is in abutting connection with described slot part, and the second end of described door locked member comprises biasing member, described biasing member is configured to towards door locked member described in described slot part bias voltage, wherein in the situation that sliding clamp inserts described slot part, sliding clamp contacts described first end and presses described door locked member against described biasing member, and in the situation that sliding clamp discharges from described slot part, described door locked member is by towards described slot part bias voltage.

According to a preferred embodiment of the present utility model, described door locked member comprises pair of openings, and described door comprises a pair of latch pin, described a pair of latch pin is configured to respectively through the corresponding opening in described two openings, at described locking component towards described slot part bias voltage in the situation that, described latch pin passes described door locked member and is fixed by described door locked member, and the in the situation that of being pressed against described biasing member by sliding clamp at described locking component, described latch pin discharges from described door locked member.

According to a preferred embodiment of the present utility model, also provide a kind of conduit for the feeder unit by being connected with infusion pump to transmit the infusion pump of fluid, described infusion pump comprises: housing; With the pumping mechanism that is mounted to described housing, described pumping mechanism comprises a plurality of pumpings finger, for the motor of mobile described a plurality of pumpings finger sequentially and reciprocally be configured in the sensor that conduit detected when conduit is correctly arranged on pumping mechanism, wherein, in the situation that described sensor does not detect conduit and is arranged on pumping mechanism, described sensor starts following at least one in both: siren is triggered; Prevent described pumping mechanism running.

According to a preferred embodiment of the present utility model, described pumping mechanism comprises a plurality of sensors, and described a plurality of sensors are configured to respectively detected catheter.

According to a preferred embodiment of the present utility model, described pumping mechanism comprises Hall circuit, and described sensor comprises magnet, described sensor can be in the situation that the primary importance of conduit be not arranged on pumping mechanism in the situation that and conduit be correctly arranged between the second position on pumping mechanism moves, described Hall circuit and described sensor described sensor in described primary importance in the situation that with the first distance separately, and with second distance, separate in the described second position in the situation that at described sensor, wherein in the situation that described Hall circuit and described magnet separate with described the first distance, described sensor stops operating described motor.

According to a preferred embodiment of the present utility model, described sensor comprises biasing member, and described biasing member is configured to described sensor to be biased into described primary importance.

According to a preferred embodiment of the present utility model, described sensor comprises a plurality of biasing members, and described a plurality of biasing members are configured to respectively described sensor to be biased into described primary importance.

According to a preferred embodiment of the present utility model, described siren comprises in audio indicator, visual detector or tactile indicators.

When therefore, can help to minimize mistake according to infusion pump of the present utility model, guide feeder unit to be correctly connected to infusion pump.

Accompanying drawing explanation

Fig. 1 is the axonometric chart illustrating according to the infusion pump of the application's embodiment;

Fig. 2 is the axonometric chart that the infusion pump of the Fig. 1 in door situation in an open position is shown;

Fig. 3 is the axonometric chart of embodiment that the feeder unit of the infusion pump that is connected to Fig. 1 is shown;

Fig. 4 is the partial perspective view of conduit that the feeder unit of Fig. 3 is shown, and described conduit is through the sliding clamp of the infusion pump of Fig. 1 and clamped by sliding clamp;

Fig. 5 is the cutaway view that the infusion pump of Fig. 1 5-5 substantially along the line obtains;

Fig. 6 is mounted in the amplification stereogram of the embodiment of the clamp fixing mechanism in the infusion pump of Fig. 1;

Fig. 7 be the clamp fixing mechanism of Fig. 6 at stop pin the amplification partial top view in the situation of off-position;

Fig. 8 be the clamp fixing mechanism of Fig. 6 at stop pin the amplification partial top view in latched position situation;

Fig. 9 is the partial front elevation view of pumping mechanism of the infusion pump of Fig. 1;

Figure 10 a does not contact the partial front elevation view in situation with the pumping mechanism of Fig. 9 with the pumping mechanism that 10b illustrates Fig. 9 in a part for the conduit of feeder unit;

Figure 11 is the partial sectional view that the pumping mechanism of Fig. 9 11-11 substantially along the line obtains, and sensor is shown in primary importance; And

Figure 12 is the partial sectional view that the pumping mechanism of Fig. 9 11-11 substantially along the line obtains, and sensor is shown in the second position.

The specific embodiment

With reference to Fig. 1-8, the infusion delivery system that comprises infusion pump 50 for scheduled volume and regularly interval to patient's conveyance fluid (such as medicine or nutrient substance).Infusion pump 50 can be small portable pump or larger pump, such as disclosed infusion pump in the U.S. Patent No. 5,018,945 being incorporated by reference herein.As shown in Figure 1, infusion pump 50 comprises that housing 52, pivotable are connected to door 54 and the display 56 on door and the input equipment such as keyboard 58 of housing.Display 56 and keyboard 58 are for programming to infusion pump, and more specifically to programming for setting the processor 60 of dose of fluid delivered and interval in pump, described processor communicates with pumping mechanism 62 then.

Fluid is flow to infusion pump 50 and is flowed out from described infusion pump by fluid feeder unit 64 as shown in Figure 3.By making a part of placement of route of conduit 66 of feeder unit 64 between door 54 and housing 52, feeder unit 64 is attached to pump 50.Preferably, feeder unit 64 comprises: drip chamber 68, it is directly connected to fluid container (not shown), such as used for intravenous injection fluid pouch; Sliding clamp 70, it is for clamping a part for conduit 66 and controlling fluid flowing by conduit; Roller fixture 72, it is also for controlling flowing of fluid; Breeches joint 74; And Rule revolves latch fitting or Rule sliding lock part 76, it is in feeder unit 64 one end, and Rule latch fitting is connected to the needle tubing that inserts patient herein, with to patient's conveyance fluid.A part for feeder unit conduit 66 and more specifically conduit 66 are inserted into the passage 78 being limited by housing 52 and are arranged in above pumping mechanism 62 in the part between sliding clamp 70 and roller fixture 72.As mentioned below, pumping mechanism 62 comprises one group of reciprocating pumping finger 80, and described pumping finger contact conduit 66, to control the Fluid Volume that is delivered to patient.

During feeding fluid to patient, it is essential and prevent that fluid free-flow is to patient.When allowing fluid to flow to patient without restriction, free-flow appearance, thus cause too much fluid to be supplied to patient, i.e. excessively transfusion.For assisting to prevent that fluid from passing through the free-flow of feeder unit 64, sliding clamp 70 is affixed to the conduit 66 of feeder unit.As shown in Figure 4, sliding clamp 70 comprises the body 82 with central opening 84, and described central opening has wide portion 86 and narrow portion 88.Conduit 66 is moved into the narrow portion 88 of sliding clamp opening 84, so that clamping or about beam guide tube and prevent that fluid is by the free-flow of conduit.This is feeder unit 64 to be inserted or is otherwise affixed to infusion pump 50 especially most important with to patient's conveyance fluid in the situation that.Particularly, during the initial setting of infusion pump 50, door 54 moves to open position as shown in Figure 2 from the closed position as shown in Fig. 1 and 5.When door 54 is in an open position, the fluid by conduit 66 flow be not subject to infusion pump 50 control and therefore fluid can freely flow by conduit.Therefore,, if conduit 66 that part in the narrow portion 88 of opening 84 by mistake moves into At All Other Times wide portion 86 during the initial setting of pump 50 or in an open position any of door 54, the free-flow of fluid will occur so.

For assist to prevent fluid is not intended to or by accident by conduit 66 free-flows to patient, this infusion pump 50 has and prevents free-pouring characteristic.Particularly, housing 52 comprises the slot part 90 that is configured to receive sliding clamp 70 as shown in Figure 2.Sliding clamp 70 is inserted into slot part 90, so that part that conduit 66 passes sliding clamp is prevented from moving into or slipping into the wide portion 86 of opening 84 downwards by housing 52.For guaranteeing that sliding clamp 70 maintains in slot part 90 when door 54 is in an open position, infusion pump 50 comprises clamping locking mechanism 92, and housing 52 is fixed and be locked to described clamping locking mechanism by sliding clamp 70, until door 54 moves to closed position.

With reference to Fig. 5-6, clamping locking mechanism 92 comprises framework 94, and described framework forms by relative a plurality of sidewalls 96 and rear wall 98, and wherein each sidewall comprises rear flange 100, and described rear flange is connected to rear wall 98 by suitable securing member.Similarly, each sidewall 96 comprises respectively front flange 102a, 102b, and wherein front flange 102a is fixed to the inner surface of housing 52, and front flange 102b is connected to fixed component 104 by suitable securing member.Front flange 102b also comprises a plurality of frame bars 106, and described frame bars is engaged in the respective aperture (not shown) being limited by housing 52, for framework 94 is in position.

Fixed component 104 comprises housing 108, and described housing has 110He lower end, upper end 112 and limits passage 114, and described passage is configured to receive L shaped door locked member 116, and described door locked member is connected to housing 52 movably.Door locked member 116 has the first wall 118 and cardinal principle smooth second wall 120 horizontal with respect to the first wall.The second wall 120 limits a plurality of openings 122, and described a plurality of openings comprise the first lock opening 124a and the second lock opening 124b.Each in the first and second lock opening 124a, 124b comprises top 126a, the 126b with first curvature radius and semicircular-shaped lower portion 128a, the 128b with second curvature radius.As shown in Figure 6, the first wall 118 of door locked member 116 is positioned in abutting connection with the upper end of housing 52, and the bottom 130 of the second wall 120 is positioned at the end opposite of housing 52.Bar 132 is connected to bottom 130 movably, and biasing member (such as helical spring 134) is placed on bar 132 or around described bar and places between the bottom of housing and door locked member 116, with by door locked member away from the bottom of housing 52 and towards the upper end of described housing bias voltage.

With reference to Fig. 2,5 and 6, by securing member being passed to contrary fixing hole 138 and inserting the corresponding securing member holding part 140 on housing, fixture receiving element 136 is mounted to the upper end of housing 52.Fixture receiving element 136 comprises slot part 90, and described slot part is configured to receive sliding clamp 70 and comprise the engagement member 142 that is connected to movably receiving element 136.Sliding clamp 70 inserts slot part 90 and contact engagement member 142.The power or the pressure that continue to act on downwards on sliding clamp 70 press down on door locked member 116 power of engagement member 142 antagonistic springs 134, to door locked member is correspondingly moved down in housing 52, until align with the respective aperture 144 being limited by housing 52 in the top of the first and second lock opening 126a, 126b.

When top 126a, the 126b of the first and second lock opening 124a, 124b align with corresponding hole 144, sliding clamp 70 is fixing and locks in place by U-shaped fixture locking component 146.Fixture locking component 146 comprises the smooth arm 148 with end opposite, the first end 150 of wherein said arm comprises the contact plug 152 extending forward and the support bar 154 extending back, and be connected to movably pin boss body 156, and the second end 158 comprises stop pin 160.In order to make fixture locking component 146 to move or to slide with respect to pin boss body 156, pin boss body 156 is limited to inner passage 162 and the cotter way portion 168 of extending between open front 164 and after-opening 166.As shown in Figure 7, biasing member (such as helical spring 170) is positioned on support bar 154 between arm 148 and the inner surface of pin boss body 156, with the anterior biasing arm towards housing 52 and so bias voltage contact plug 152 and stop pin 160.A part for support bar 154 is extended by after-opening 166, to preventing making fixture locking component 146 to move or to slide with respect to pin boss body 156 when spring 170 and support bar 154 are disengaged.

The size and shape of stop pin 160 is corresponding to the size and shape of the pin opening 172 being limited by fixture receiving element 136, wherein when fixture locking component 146 is during in first or rest position as shown in Figure 8, stop pin 160 is through the wide portion 86 of pin opening and sliding clamp opening 84, so that sliding clamp 70 lockings are in place.Alternatively, when fixture locking component 146 is during in second or compression position as shown in Figure 7, stop pin 160 is disengaged with sliding clamp opening 84.

The door 54 of infusion pump 50 comprises a pair of latch pin vertically separating 174 and actuator pin 176, and described latch pin and actuator pin extend from the inner surface 178 of door respectively.Each latch pin 174 comprises the head 182 of the cardinal principle taper of the one end that has the bar 180 of diameter and radius of curvature and be positioned at bar, and the size of wherein said head or diameter are greater than the diameter of bar.When door 54 is moved to the closed position against the front surface of housing (Fig. 5), latch pin 174 and more specifically head 182 are configured to extend through hole 144 in housing 52 and corresponding the first and second lock opening 124a, the 124b of door locked member 116.Meanwhile, actuator pin 176 extends through the contact plug 152 of opening 184 on housing 52 and contact fixture locking component 146.Along with actuator pin 176 moves inward, its antagonistic spring 170 inwardly promotes or moving contact pin 152 and so inside promotion or movable support bar 154.Via arm 148 and the stop pin 160 of contact plug interconnection, move inward simultaneously and be disengaged with sliding clamp 70.From fixture locking component 146, discharging sliding clamp 70 stretches spring 170 and in housing 52, upwards promotes door locked member 116.Thus, the first and second lock opening 124a, 124b on door locked member 116 move up with respect to latch pin 174, until latch pin is seated in the bottom 128 of opening against door locked member.Because the diameter of the head 182 of latch pin 174 is greater than diameter or the radius of curvature of the bottom 128 of opening 124a, 124b, therefore door 54 is locked in closed position, and reason is that latch pin can not move through the opening in door locked member 116.When sliding clamp 70 shifts out from slot part 90, by door 54 lockings for infusion pump 50 can assist to prevent fluid is not intended to or by accident by feeder unit free-flow to patient, described free-flow may be at door 54 in an open position and feeder unit conduit 66 produce while being disengaged with pump provisionally.

In order to open the door 54 of infusion pump 50, such as with by the conduit of feeder unit 64 66 through pump, in the position of the interior adjusting conduit 66 of pump 50 or new feeder unit is connected to pump, user can insert slot parts 90 by the sliding clamp being associated with feeder unit 64 as described above 70.Sliding clamp 70 by user in the interior downward promotion of slot part 90, thereby door locked member 116 antagonistic springs 134 are moved down, and the top 126 of the first and second lock opening 124a, 124b is moved to the head 182 that is adjacent to latch pin 174.This latch enable pin 174 back moves by the first and second lock opening 124a, 124b and discharges from door locked member 116, thereby discharges door 54.Meanwhile, when the wide portion 86 of grasp opening 84 is when pin opening 172 in fixture receiving element 136 aligns, stop pin 160 by spring 170 by wide portion 86 bias voltages of pin opening and sliding clamp opening 84.Thereby stop pin 160 is locked in sliding clamp 70 in fixture receiving element 136 when door 54 is in an open position.Sliding clamp 70 lockings can be prevented to it shifts out from housing 52, and conduit 66 may move to the wide portion 86 of opening 84 by accident herein, thereby allows fluid free-flow to patient.

Referring now to Fig. 2 and 9-12, as described above, by the part of conduit 66 between sliding clamp 70 and roller fixture 72 alignd substantially along the pumping finger 80 of the pumping mechanism 79 shown in Fig. 2 and 9, feeder unit 64 is loaded into infusion pump 50.The pumping sequence of pumping finger 80 based on predetermined or programming independently, reciprocally mobile to contact and to disengage with feeder unit conduit 66, to carry the fluid (such as medicine or nutrient substance) of specified amount to patient.If the conduit of feeder unit 64 66 is carried by mistake, thereby make all or part of of conduit 66 not be positioned at fully on pumping finger 80 as shown in Figure 10 a and 10b, so free-flow may occur, thereby cause potentially excessively infusing to patient, this may affect patient's health or rehabilitation; Or feeding of transfusion may inaccurate, maybe can not reach patient's demand or patient be damaged.

With reference to Fig. 9, one of them pumping finger 80 and preferably central pumping finger 80b are substituted by mistake set sensor 190.Should be understood that, one or more pumpings finger 80 can be substituted by one or more mistake set sensors 190.Whether each mistake set sensor 190 detected catheter 66 is present in 80 tops, pumping finger and more specifically whether is present in mistake set sensor 190 tops, and trigger siren 61 or make its sounding, the combination in any of described siren such as audio indicator, visual detector, tactile indicators or these indicators or other prompting when conduit 66 is carried as shown in Figure 10 a and 10b by mistake.Processor 60 in infusion pump 50 and more specifically infusion pump is also programmed, to prevent in the time of 66 wrong years at feeder unit conduit or the running of stopping infusion pump.Should be understood that, sensor 190 can be as triggered alarm or preventing or the running of stopping infusion pump or trigger as described above alarm and prevent the running of infusion pump.It is to be further understood that one or more sensors 190 can be whether to be present on described one or more sensor or near any suitable one or more sensors for detection of object (such as conduit 66).

With reference to Figure 11 and 12, cam 194 is associated with pumping finger 80 and is connected to the motor 196 that makes cam rotation particularly.The rotation of cam 194 makes the different end differences of cam contact corresponding pumping finger 80, so that dose of fluid delivered and interval based on programming reciprocally move described finger with respect to conduit 66.As shown in figure 11, mistake set sensor 190 has body 198, and described body comprises the guide portion 200 forming by contrary shoulder 202, and described shoulder defines the passage 204 for conduit 66 is located and is held in place with respect to pumping mechanism 79.Should be understood that, guide portion 200 can be smooth, semicircular or any suitable size or shape.Body 198 also comprises the contrary bar 206 surrounding by corresponding biasing member (such as helical spring 208).Helical spring 208 is positioned between mistake set sensor 190 and housing 52, and towards the outside bias voltage sensor in the front portion of housing.Arm 210 is integrally formed with sensor body 198 and extends from described sensor body, and comprises magnet 212.Should be understood that, magnet 212 can be any suitable magnet or a plurality of magnet.In order to determine the position of mistake set sensor 190, pumping mechanism 79 comprises Hall circuit 214, and described Hall circuit produces the signal that is sent to processor 60, and wherein to take Hall circuit 214 to the relative position of magnet 212 be basis to signal intensity.For example, when the conduit 66 of feeder unit 64 be correctly loaded on pumping mechanism 79, while being loaded in sensor guide portion 200 (Figure 11), sensor 190 is inwardly pressed by conduit antagonistic spring 208, and this makes the distance between magnet 212 and Hall circuit 214 be increased to distance " D1 ".When conduit 66 is carried, is that no-fix is in guide portion 200 and when therefore no-fix is on pumping mechanism 79 (Figure 12) by mistake, therefore mistake set sensor 190 is not inwardly pressed, and magnet 212 and Hall circuit 214 relative to each other maintain the initial or distance " D2 " of stopping using.Therefore when the distance between magnet 212 and Hall circuit 214 is during in distance D 1, processor 60 in infusion pump 50 receives signal and starts siren from mistake set sensor 190, such as audio alert or indicator, visual detector and/or haptic alerts or indicator, to carry to the mistake of user warning feeder unit 64.Processor 60 can also be programmed, and with setting out of convenient feeder unit 64 by mistake, closes now motor 196.

This infusion pump 50 comprises anti-error year device, and described anti-error year device assisted to prevent that fluid (such as medicine) free-flow is to patient, and prevented that feeder unit is loaded onto pump by mistake.All these anti-error year devices of this infusion pump can correctly set infusion pump and conveyance fluid to patient by the minimized user that makes of human error simultaneously.

Although the principle of this infusion pump is described with reference to certain figures and applicable cases hereinbefore, should be understood that, this description is only undertaken by the mode of embodiment and not as the restriction of the scope of the claim to below.

Claims (14)

1. an infusion pump, for transmitting fluid by feeder unit, described feeder unit has for controlling fluid by the mobile sliding clamp of feeder unit, and described infusion pump comprises:

Be limited with the housing of slot part, described slot part is configured to receive sliding clamp;

Be connected to movably the door of described housing, described door can move between open position and closed position; With

Be connected to movably described housing and be configured to engage the stop pin of sliding clamp, described stop pin can move between latched position and off-position, in described latched position, described stop pin engages sliding clamp and be fixed in described slot part, in described off-position, described stop pin and sliding clamp are disengaged

Its characteristic is, in the situation that described door moves to described open position, described stop pin moves to described latched position and sliding clamp is fixed in described slot part, and in the situation that described door moves to described closed position, described stop pin moves to described off-position and discharges sliding clamp from described slot part.

2. infusion pump as claimed in claim 1, its characteristic is, described infusion pump also comprises fixture locking component, described fixture locking component is connected to movably described housing and comprises described stop pin, described fixture locking component also comprises contact plug, described contact plug is configured to engage described door in the situation that described door moves to described closed position, and from described door, be disengaged in described open position in the situation that at described door, the situation that wherein said fixture locking component engages described door at described contact plug is displaced downwardly to described off-position, and be displaced downwardly to described latched position at described contact plug and described situation about being disengaged.

3. infusion pump as claimed in claim 2, its characteristic is, described door comprises that actuator pin, described actuator pin are configured to engage in described closed position in the situation that at described door described contact plug, and is disengaged with described contact plug in described open position in the situation that at described door.

4. infusion pump as claimed in claim 1, its characteristic is, described infusion pump also comprises door locked member, described door locked member is arranged in described housing, and described door locked member is configured to lock described door in the situation that described stop pin moves to described off-position and in the situation that described stop pin moves to described latched position, discharges described door.

5. infusion pump as claimed in claim 4, its characteristic is, described door locked member comprises opening, and described door comprises the latch pin that is configured to pass described opening, described latch pin passes described opening and is fixed by described door locked member in the situation that described stop pin moves to described off-position, and described latch pin discharges from described opening in the situation that described stop pin moves to described latched position.

6. infusion pump as claimed in claim 4, its characteristic is, described door locked member comprises two openings, and described door comprises two latch pins, described two latch pins are configured to respectively through the corresponding opening in described two openings, in the situation that described stop pin moves to described off-position, described latch pin passes corresponding opening and is fixed by described door locked member, and in the situation that described stop pin moves to described latched position, described latch pin discharges from described opening.

7. infusion pump as claimed in claim 1, its characteristic is, described infusion pump also comprises the door locked member being arranged on movably in described housing, the first end of described door locked member is in abutting connection with described slot part, and the second end of described door locked member comprises biasing member, described biasing member is configured to towards door locked member described in described slot part bias voltage, wherein in the situation that sliding clamp inserts described slot part, sliding clamp contacts described first end and presses described door locked member against described biasing member, and in the situation that sliding clamp discharges from described slot part, described door locked member is by towards described slot part bias voltage.

8. infusion pump as claimed in claim 7, its characteristic is, described door locked member comprises pair of openings, and described door comprises a pair of latch pin, described a pair of latch pin is configured to respectively through the corresponding opening in described two openings, at described locking component towards described slot part bias voltage in the situation that, described latch pin passes described door locked member and is fixed by described door locked member, and the in the situation that of being pressed against described biasing member by sliding clamp at described locking component, described latch pin discharges from described door locked member.

9. an infusion pump, transmits fluid for the conduit of the feeder unit by being connected with infusion pump, and described infusion pump comprises:

Housing; With

Be mounted to the pumping mechanism of described housing, described pumping mechanism comprises a plurality of pumpings finger, for the motor of mobile described a plurality of pumpings finger sequentially and reciprocally be configured in the sensor that conduit detected when conduit is correctly arranged on pumping mechanism,

Its characteristic is, in the situation that described sensor does not detect conduit and is arranged on pumping mechanism, described sensor starts following at least one in both: siren is triggered; Prevent described pumping mechanism running.

10. infusion pump as claimed in claim 9, its characteristic is, and described pumping mechanism comprises a plurality of sensors, and described a plurality of sensors are configured to respectively detected catheter.

11. infusion pump as claimed in claim 9, its characteristic is, described pumping mechanism comprises Hall circuit, and described sensor comprises magnet, described sensor can be in the situation that the primary importance of conduit be not arranged on pumping mechanism in the situation that and conduit be correctly arranged between the second position on pumping mechanism moves, described Hall circuit and described sensor described sensor in described primary importance in the situation that with the first distance separately, and with second distance, separate in the described second position in the situation that at described sensor, wherein in the situation that described Hall circuit and described magnet separate with described the first distance, described sensor stops operating described motor.

12. infusion pump as claimed in claim 11, its characteristic is, and described sensor comprises biasing member, and described biasing member is configured to described sensor to be biased into described primary importance.

13. infusion pump as claimed in claim 11, its characteristic is, and described sensor comprises a plurality of biasing members, and described a plurality of biasing members are configured to respectively described sensor to be biased into described primary importance.

14. infusion pump as claimed in claim 9, its characteristic is, described siren comprises in audio indicator, visual detector or tactile indicators.

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