CN206880905U - Infusion pump choke detection device and infusion pump systems - Google Patents

Infusion pump choke detection device and infusion pump systems Download PDF

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Publication number
CN206880905U
CN206880905U CN201720087274.8U CN201720087274U CN206880905U CN 206880905 U CN206880905 U CN 206880905U CN 201720087274 U CN201720087274 U CN 201720087274U CN 206880905 U CN206880905 U CN 206880905U
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China
Prior art keywords
pressure
infusion pump
guide rod
woven hose
mounting groove
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CN201720087274.8U
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Chinese (zh)
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罗宏伟
李春雷
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Beijing Yi Shiheng Electronic Technology Co Ltd
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Beijing Yi Shiheng Electronic Technology Co Ltd
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Abstract

The utility model is relevant a kind of infusion pump choke detection device and infusion pump systems, wherein, infusion pump choke detection device includes：Pressure transmission portion and signal generation portion；The pressure transmission portion contacts with the woven hose in the infusion pump, can transmit the pressure of infusion pipeline；The signal generation portion is oppositely arranged with the pressure transmission portion, the pressure transmitted according to the pressure transmission portion, generates electric signal.Infusion pump choke detection device of the present utility model can reduce the risk of infusion pump Clinical practice.

Description

Infusion pump choke detection device and infusion pump systems
Technical field
Medical instruments field is the utility model is related to, more particularly to a kind of infusion pump choke detection device and infusion pump system System.
Background technology
Infusion pump is that medicine equipment is generally used in clinical treatment, and number of infusion drops or defeated can be accurately controlled using infusion pump Flow velocity, ensure medicine can speed it is uniform, dose is accurate and safely enters and plays a role in patient body, while using defeated Liquid pump can also improve efficiency and the flexibility of clinical administration operation, reduce nursing work load.Infusion pipeline obstruction is infusion pump Common failure in use, therefore pressure sensor is generally designed with infusion pump, with for detecting the pressure of infusion pipeline, Alarmed when choking phenomenon occurring and cause the pressure of infusion pipeline to exceed setting value, so as to remind medical personnel to occurring The problem of handled.
Currently used pressure sensor is bridge type pressure sensor, it be by resistance strain gage by special viscous and Agent, which is closely bonded in, to be produced on mechanics strain matrix, and when stress variation occurs for matrix stress, resistance strain gage also produces together Raw deformation, makes the resistance of foil gauge change, is changed so that being added in ohmically voltage, this foil gauge is in stress Caused change in resistance is generally smaller, generally requires and uses this foil gauge composition strain bridge, and passes through follow-up instrument Table amplifier is amplified, and is transmitted further to process circuit (being usually A/D conversions and CPU) display or executing agency.
But in specific implementation we have found that：Bridge type pressure sensor is used on the infusion pipeline of infusion pump, by In bridge type pressure sensor itself there is the problems such as precision is low, restorability is poor, fragile, can increase infusion pump clinic makes Risk.
The content of the invention
The defects of in view of present in above-mentioned prior art, the purpose of this utility model is, there is provided a kind of infusion pump resistance Detection means and infusion pump systems are filled in, it is reduced the risk of infusion pump Clinical practice.
To achieve these goals, according to the utility model proposes a kind of infusion pump choke detection device, including：Pressure Transfer part, contacted with the woven hose in the infusion pump, the pressure of infusion pipeline can be transmitted；And signal generation portion, it is and described Pressure transmission portion is oppositely arranged, and the pressure transmitted according to the pressure transmission portion, generates electric signal.
The utility model can be also applied to the following technical measures to achieve further.
Foregoing infusion pump choke detection device, wherein the pressure transmission portion includes：Fixation kit, with the infusion pump And the signal generation portion connection；And moving parts, it is arranged in the fixation kit, is connect with the woven hose in the infusion pump Touch, can be moved relative to the fixation kit, transmit the pressure of infusion pipeline.
Foregoing infusion pump choke detection device, wherein the fixation kit includes：Pressure mounting blocks, with the infusion pump Connection, the first mounting groove is provided with the pressure mounting blocks, the first pilot hole is offered in the bottom of first mounting groove； And pressure cushion block, it is connected with the pressure mounting blocks, closes the opening of first mounting groove, be provided with the pressure cushion block Second pilot hole；The moving parts include：Guide rod, it is arranged in first mounting groove, one end of the guide rod is worn Cross first mounting hole to contact with the woven hose in the infusion pump, the other end of the guide rod is oriented to through described second Hole；Wherein it is provided with boss on the guide rod in first mounting groove, the diameter of the boss is more than described the The diameter of one pilot hole；And guide spring, it is arranged in first mounting groove, and be sheathed on the guide rod, it is described to lead It is connected to one end of spring with the pressure cushion block, the other end of the guide spring is connected with the boss of the guide rod, and The boss is set to be resisted against the bottom surface of first mounting groove.
Foregoing infusion pump choke detection device, wherein the signal generation portion includes：Pressure sensor, with the guiding The other end of bar is oppositely arranged, and according to the pressure of the guide rod transmission, generates electric signal；And circuit board, pacify with the pressure Block connection is filled, the pressure sensor is arranged on the circuit board, and the circuit board generates according to the pressure sensor Electric signal triggering obstruction alarm.
Foregoing infusion pump choke detection device, wherein the second mounting groove is provided with the pressure cushion block, described second Pilot hole is arranged at the bottom of second mounting groove, and the circuit board closes the opening of second mounting groove, the pressure Sensor is located in second mounting groove.
Foregoing infusion pump choke detection device, wherein between being reserved between the guide rod and the pressure sensor Gap.
Foregoing infusion pump choke detection device, wherein the gap is 0.1mm to 0.3mm.
Foregoing infusion pump choke detection device, wherein screw is provided with the pressure mounting blocks, in the pressure pad Block is provided with the first connecting hole, and the second connecting hole is provided with the circuit board, and the circuit board and the pressure cushion block pass through First connecting hole described in the screw bolt passes and second connecting hole coordinate and the pressure mounting blocks with the screw Connection.
To achieve these goals, according to the utility model proposes a kind of infusion pump, including：Described in any of the above-described Infusion pump choke detection device, the infusion pump choke detection device are arranged at the downstream of the woven hose in the infusion pump.
Foregoing infusion pump, wherein also including：Transfusion pipe mounting seat, is arranged in the housing of the infusion pump, transfusion device Woven hose be installed in the transfusion pipe mounting seat, the pressure transmission portion of the infusion pump choke detection device is arranged at described The side for pipe mounting seat of infusing, is oppositely arranged with the woven hose of the transfusion device；Baffle plate spring, one end of the baffle plate spring with The pump door connection set in the transfusion pump case；And baffle plate, it is connected with the other end of the baffle plate spring, is closing the pump The woven hose of the transfusion device is pressed to the transfusion pump block by the baffle plate in the opposite side of the transfusion pipe mounting seat behind the door The pressure transmission portion contact of detection means, makes the pressure transmission portion be contacted with the woven hose of the transfusion device.
The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, sheet The infusion pump choke detection device and infusion pump systems of utility model, at least with following advantages：
First, infusion pump choke detection device and infusion pump systems of the present utility model, by using high-accuracy electronics member Device, the precision of pressure detecting can be improved, so as to reduce the risk of infusion pump Clinical practice；
2nd, infusion pump choke detection device and infusion pump systems of the present utility model, can ensure the resistance in infusion pipeline After plug excludes, detection means is recovered to original state, so that detection dress can be good with Reusability, restorability；
3rd, infusion pump choke detection device and infusion pump systems of the present utility model, the stable performance of detection means, batch The uniformity of production is good；
4th, infusion pump choke detection device and infusion pump systems of the present utility model, the structure of detection means are simple.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model infusion pump choke detection device one embodiment.
Fig. 2 is the schematic diagram of the utility model infusion pump choke detection device use state.
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined goal of the invention taken, below With reference to accompanying drawing and preferred embodiment, to according to the utility model proposes infusion pump choke detection device and infusion pump systems its tools Body embodiment, step, structure, feature and its effect describe in detail.
Infusion pump choke detection device of the present utility model includes：Pressure transmission portion and signal generation portion.Wherein, pressure passes Pass portion to contact with the woven hose in infusion pump, the pressure of infusion pipeline can be transmitted, signal generation portion is relative with pressure transmission portion Set, the pressure transmitted according to pressure transmission portion, generate electric signal.Infusion pump choke detection device of the present utility model utilizes pressure The pressure transmission of infusion pipeline to signal generation portion, is generated electric signal, directly become according to the pressure of infusion pipeline by power transfer part Change to detect whether infusion pipeline blocks, high-accuracy electronic component can be used by signal generation portion, improve pressure The precision of power detection, so as to reduce the risk of infusion pump Clinical practice.
In the specific implementation, pressure transmission portion can include：Fixation kit and moving parts, wherein, fixation kit with it is defeated Liquid pump and signal generation portion connection, moving parts are arranged in fixation kit, contacted with the woven hose in infusion pump, can be relative Moved in fixation kit, transmit the pressure of infusion pipeline.
Refer to shown in Fig. 1, Fig. 1 is the schematic diagram of the utility model infusion pump choke detection device one embodiment. In the embodiment, fixation kit includes：Pressure mounting blocks 101 and pressure cushion block 102, moving parts include guide rod 103 and led To spring 104.Wherein, pressure mounting blocks 101 are connected with infusion pump, and the first mounting groove 101a is provided with pressure mounting blocks 101, The first pilot hole 101b is offered in the first mounting groove 101a bottom, pressure cushion block 102 is connected with pressure mounting blocks 101, envelope The first mounting groove 101a opening is closed, the second pilot hole 102a is provided with pressure cushion block 102, guide rod 103 is arranged at first In mounting groove 101a, one end of guide rod 103 contacts through the first mounting hole 101b with the woven hose in infusion pump, guide rod 103 other end passes through the second pilot hole 102a, and boss is provided with the guide rod 103 in the first mounting groove 101a 103a, wherein boss 103a diameter are more than the first pilot hole 101b diameter, and guide spring 104 is arranged at the first mounting groove In 101a, and be sheathed on guide rod 103, one end of guide spring 104 is connected with pressure cushion block 102, guide spring 104 it is another One end is connected with the boss 103a of guide rod 103, boss 103a is resisted against the first mounting groove 101a bottom surface.
As shown in figure 1, further, in this embodiment, signal generation portion includes：Pressure sensor 105 and circuit board 106.Wherein, the other end of pressure sensor 105 and guide rod 103 is oppositely arranged, according to the pressure of guide rod transmission, generation electricity Signal, circuit board 106 are connected with pressure mounting blocks 101, and pressure sensor 105 is arranged on circuit board 106, circuit board 106 The electric signal triggering obstruction alarm generated according to pressure sensor 105.
In the specific implementation, the second mounting groove 102b can be provided with pressure cushion block 102, the second pilot hole 102a is arranged at Second mounting groove 102b bottom, circuit board 106 close the second mounting groove 102b opening, and pressure sensor 105 is located at second In mounting groove 102b.Specifically, circuit board 106 can be single chip microcomputer circuit board.
In the present embodiment, pressure mounting blocks 101 are used for installation of the realization device in infusion pump, pressure cushion block 102 with The shell of the forming apparatus of pressure mounting blocks 101, and location and installation is provided for other element of device, guide rod 103 is pressure Force transmission element, pressure mounting blocks 101 and pressure cushion block 102 also provide guiding, guide spring 104 for the motion of guide rod 103 Ensure that guide rod 103 forms effective displacement space, and the size of rationally control detection pressure.
Pressure sensor 105 is welded on circuit board by the infusion pump choke detection device of the present embodiment first in assembling On 106, the back side of pressure sensor 105 is set to be close on circuit board 106；Then in the first pilot hole of pressure mounting blocks 101 Silicone grease is uniformly smeared on the guide rod 103 coordinated in 101b and with the first pilot hole 101b, is made after assembling in the first pilot hole The silicone grease layer of even spread is formed between 101b and guide rod 103；Finally it is directed to bar 103, guide spring 104, pressure cushion block 102 and the circuit board 106 provided with pressure sensor 105 be assembled to successively on pressure mounting blocks 101.
In the specific implementation, can be set on pressure cushion block 102 by setting screw on pressure mounting blocks 101 One connecting hole, the second connecting hole is set on circuit board 106, sequentially passing through first on pressure cushion block 102 using bolt 107 connects The second connecting hole connect on hole and circuit board 106 coordinates with the screw on pressure mounting blocks 101, by circuit board 106 and pressure pad Block 103 is connected with pressure mounting blocks 101.As shown in figure 1, set on pressure mounting blocks 101, circuit board 106 and pressure cushion block 102 Have at two at bolt connection.
It should be noted that the present embodiment does not utilize to pressure mounting blocks 101 and pressure cushion block 102 and circuit board 106 The number of bolted tie point is defined, also not to pressure cushion block 102 and circuit board 106 and pressure mounting blocks 101 Connected mode is defined.
In actual applications, it is reserved with gap between guide rod 103 and pressure sensor 105.Specifically, guide rod The gap reserved between 103 and pressure sensor 105 is 0.1mm to 0.3mm.Now complete infusion pump choke detection device , it is necessary to test infusion pump choke detection device after assembling, to ensure to work as between guide rod 102 and pressure sensor 105 Gap when being 0.1~0.3mm, carry out infusion pump occlusion detection, when not occurring to infuse pump block, pressure sensor 105 is defeated The semaphore gone out is 0.
The course of work of the infusion pump choke detection device of the present embodiment is illustrated with reference to Fig. 1：
After the infusion pump for being provided with the detection means of the present embodiment is installed on transfusion device, in the normal work of infusion pipeline When making, i.e., when transfusion pump block not occurring, due to existing gap, pressure sensing between guide rod 103 and pressure sensor 105 Device 105 is not affected by pressure, and the semaphore that pressure sensor 105 now exports is 0；When infusion pipeline blocks, woven hose Expand, pressure is produced to guide rod 103, guide rod 103 overcomes the elastic force of guide spring 104 to be transported to pressure sensor 105 It is dynamic, contacted with pressure sensor 105, the pressure that pressure sensor 105 is transmitted by guide rod 102, and according to suffered pressure Power generate electric signal output, circuit board 106 receive pressure sensor 105 export electric signal, due to pressure sensor 105 by Pressure it is bigger, the semaphore of the electric signal of generation is also bigger, what the pressure sensor 105 received when circuit board 106 exported Triggering obstruction alarm when the semaphore of electric signal reaches the numerical value of calibration.Specifically, sound, light form can be used by blocking alarm.
Wherein, the acquisition of the numerical value of calibration, it is in the case where infusion pipeline blocks, by connecting on infusion pipeline Pressure gauge is connect, numerical value when fixed pressure is risen to according to recording manometer obtains.At the initial stage that obstruction occurs, woven hose is swollen Swollen smaller to pressure caused by guide rod 103, the pressure suffered by pressure sensor 105 is smaller, the telecommunications that sensor 105 exports Number semaphore much smaller than calibration numerical value, with the operating of infusion pump, cumulant of the liquid in infusion pipeline is continuously increased, Transfusion tube swelling constantly increases pressure caused by guide rod 103, and the pressure suffered by pressure sensor 105 constantly increases, and passes The semaphore for the electric signal that sensor 105 exports is also increasing, when the semaphore for the electric signal that sensor 105 exports increases to school During the numerical value of standard, the triggering obstruction alarm of circuit board 106.
After the obstruction of infusion pipeline is excluded, the pressure of obstruction is discharged, infusion pipeline returns to normal operating condition, is oriented to Bar 103 guide spring 104 in the presence of separating pressure sensor 105, detection means return to again does not occur infusion pump resistance State during plug, the semaphore that now pressure sensor 105 exports are 0.When transfusion pump block occurs again, detection means will Operation above is performed again.
The infusion pump choke detection device of the present embodiment can be ensured in infusion pipeline by the setting of compression spring 104 Obstruction exclude after, detection means is recovered to original state so that detection dress can be with Reusability, restorability is good, and Due to not using the sensor of electric bridge form, but pressure sensor 105 is directly transferred the pressure to by guide rod 103, produced The stable performance of product, simple in construction, the uniformity of batch production is good.
In addition, the utility model additionally provides a kind of infusion pump, it is defeated provided with any of the above-described embodiment in the infusion pump Liquid pump choke detection device, wherein infusion pump choke detection device are specifically arranged at the downstream of the woven hose in infusion pump.
Refer to shown in Fig. 2, Fig. 2 is the schematic diagram of the utility model infusion pump choke detection device use state.Wherein, Transfusion pipe mounting seat 201, baffle plate spring 202 and baffle plate 203 are additionally provided with infusion pump, transfusion pipe mounting seat 201 is arranged at defeated In the housing of liquid pump, the woven hose of transfusion device 300 is installed in transfusion pipe mounting seat 201, the pressure of infusion pump choke detection device Power transfer part is arranged at the side of transfusion pipe mounting seat 201, is oppositely arranged with the woven hose of transfusion device 300, baffle plate spring 202 One end is connected with the pump door set in transfusion pump case, and the other end of baffle plate spring 202 is connected with baffle plate 203, is closing pump door The woven hose of transfusion device 300 is pressed to infusion pump choke detection device by rear baffle 203 in the opposite side of transfusion pipe mounting seat 201 Pressure transmission portion contacts, and the pressure transmission portion of infusion pump choke detection device is contacted with the woven hose of transfusion device 300, so as to work as When infusion pipeline blocks, the obstruction of infusion pipeline can be detected using infusion pump choke detection device.
Although the utility model is disclosed above with preferred embodiment, the model of the utility model implementation is so not limited to Enclose, the simple equivalent changes and modifications made according to claims of the present utility model and description, still fall within this reality In the range of new technique scheme.

Claims (10)

  1. A kind of 1. infusion pump choke detection device, it is characterised in that including：
    Pressure transmission portion, contacted with the woven hose in the infusion pump, the pressure of infusion pipeline can be transmitted；And
    Signal generation portion, it is oppositely arranged with the pressure transmission portion, the pressure transmitted according to the pressure transmission portion, generates telecommunications Number.
  2. 2. device as claimed in claim 1, it is characterised in that the pressure transmission portion includes：
    Fixation kit, it is connected with the infusion pump and the signal generation portion；And
    Moving parts, it is arranged in the fixation kit, is contacted with the woven hose in the infusion pump, can be relative to described solid Determine component movement, transmit the pressure of infusion pipeline.
  3. 3. device as claimed in claim 2, it is characterised in that
    The fixation kit includes：
    Pressure mounting blocks, it is connected with the infusion pump, the first mounting groove is provided with the pressure mounting blocks, in the described first peace The bottom of tankage offers the first pilot hole；And
    Pressure cushion block, it is connected with the pressure mounting blocks, closes the opening of first mounting groove, set on the pressure cushion block There is the second pilot hole；
    The moving parts include：
    Guide rod, be arranged in first mounting groove, one end of the guide rod through first mounting hole with it is described defeated Woven hose contact in liquid pump, the other end of the guide rod pass through second pilot hole；Wherein positioned at the described first peace The guide rod in tankage is provided with boss, and the diameter of the boss is more than the diameter of first pilot hole；And
    Guide spring, be arranged in first mounting groove, and be sheathed on the guide rod, one end of the guide spring with Pressure cushion block connection, the other end of the guide spring are connected with the boss of the guide rod, and make the boss against In the bottom surface of first mounting groove.
  4. 4. device as claimed in claim 3, it is characterised in that the signal generation portion includes：
    Pressure sensor, it is oppositely arranged with the other end of the guide rod, according to the pressure of the guide rod transmission, generates telecommunications Number；And
    Circuit board, it is connected with the pressure mounting blocks, the pressure sensor is arranged on the circuit board, the circuit board root According to the electric signal triggering obstruction alarm of pressure sensor generation.
  5. 5. device as claimed in claim 4, it is characterised in that it is provided with the second mounting groove on the pressure cushion block, described Two pilot holes are arranged at the bottom of second mounting groove, and the circuit board closes the opening of second mounting groove, the pressure Force snesor is located in second mounting groove.
  6. 6. the device as described in claim 4 or 5, it is characterised in that pre- between the guide rod and the pressure sensor Leave gap.
  7. 7. device as claimed in claim 6, it is characterised in that the gap is 0.1 to 0.3mm.
  8. 8. the device as described in claim 4 or 5, it is characterised in that screw is provided with the pressure mounting blocks, in the pressure Power cushion block is provided with the first connecting hole, and the second connecting hole, the circuit board and the pressure cushion block are provided with the circuit board Coordinated by the first connecting hole described in the screw bolt passes and second connecting hole with the screw and pacified with the pressure Fill block connection.
  9. A kind of 9. infusion pump, it is characterised in that including：Infusion pump occlusion detection dress as any one of claim 1 to 7 Put, the infusion pump choke detection device is arranged at the downstream of the woven hose in the infusion pump.
  10. 10. infusion pump as claimed in claim 9, it is characterised in that also include：
    Transfusion pipe mounting seat, is arranged in the housing of the infusion pump, and the woven hose of transfusion device is installed on the woven hose installation In seat, the pressure transmission portion of the infusion pump choke detection device is arranged at the side of the transfusion pipe mounting seat, and described defeated The woven hose of liquid device is oppositely arranged；
    Baffle plate spring, one end of the baffle plate spring are connected with the pump door set in the transfusion pump case；And
    Baffle plate, it is connected with the other end of the baffle plate spring, closing the pump, the baffle plate is installed in the woven hose behind the door The pressure transmission portion that the opposite side of seat presses to the woven hose of the transfusion device infusion pump choke detection device contacts, and makes institute The woven hose that pressure transmission portion is stated with the transfusion device contacts.
CN201720087274.8U 2017-01-23 2017-01-23 Infusion pump choke detection device and infusion pump systems Active CN206880905U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720087274.8U CN206880905U (en) 2017-01-23 2017-01-23 Infusion pump choke detection device and infusion pump systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720087274.8U CN206880905U (en) 2017-01-23 2017-01-23 Infusion pump choke detection device and infusion pump systems

Publications (1)

Publication Number Publication Date
CN206880905U true CN206880905U (en) 2018-01-16

Family

ID=61327526

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720087274.8U Active CN206880905U (en) 2017-01-23 2017-01-23 Infusion pump choke detection device and infusion pump systems

Country Status (1)

Country Link
CN (1) CN206880905U (en)

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