CN206934393U - A kind of blood pump suspended impeller axial displacement dynamic measurement device - Google Patents
A kind of blood pump suspended impeller axial displacement dynamic measurement device Download PDFInfo
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- CN206934393U CN206934393U CN201720046837.9U CN201720046837U CN206934393U CN 206934393 U CN206934393 U CN 206934393U CN 201720046837 U CN201720046837 U CN 201720046837U CN 206934393 U CN206934393 U CN 206934393U
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- blood pump
- displacement
- blood
- axial displacement
- rubber tubing
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Abstract
The utility model belongs to artificial heart technical field, specifically blood pump suspended impeller axial displacement dynamic measurement device, the measurable axial displacement changing value caused by the unstable rotation of suspended impeller of the device.Blood pump suspended impeller axial displacement dynamic measurement device includes blood pump operating mode regulation and control unit and displacement measurement unit.Blood pump operating mode regulates and controls unit and blood pump regulation is arrived into specific state to be measured according to experiment parameter.Displacement measurement unit can adjust displacement sensor probe position by Magnetic gauge stand, the change in displacement of blood pump impeller axial direction under specific operation is measured by the glycerine water solution in the transparent organic glass window and pump case of pump case on blood pump, and shows the displacement changing curve of impeller over the display.The utility model measures when can realize the high-precision real of blood pump impeller axial displacement micron order change, has the characteristics of simple to operate, measurement result precision is high and directly perceived.
Description
Technical field
Artificial heart technical field is the utility model is related to, is concretely related to a kind of for blood pump suspended impeller axial direction
The dynamic measurement device of displacement.
Background technology
Suspended impeller in blood pump can produce axial runout when rotated, and this unstable rotation status of impeller can cause blood
Pump flow field is got muddled, and the pressure and flow in blood pump can produce fluctuation, more seriously cause Blood damage, cause haemolysis and
Thrombus, haemolysis and thrombus can seriously injure the life security of heart failure patient.Therefore, studied before blood pump clinical practice outstanding
Axial displacement change has great importance caused by the bumpy running of floating impeller.This proposed in this context is practical new
Type blood pump suspended impeller axial displacement dynamic measurement device can measure impeller axial direction change in displacement exactly, by analyzing blood pump
Relation between flow, pressure and rotating speed and impeller change in displacement, theoretical foundation is provided for blood pump control optimization.
The content of the invention
The purpose of this utility model is to provide a kind of device for measuring blood pump suspended impeller axial displacement, and the device can solve
The problems such as displacement is small in measurement process, probe positions are not easy regulation and pump case and blood obstruction measurement.
The utility model is that technical scheme is used by solving the above problems：
1. a kind of blood pump suspended impeller axial displacement dynamic measurement device, the device mainly includes blood pump operating mode regulation and control unit
And displacement measurement unit；The blood pump operating mode regulation and control unit includes constant water bath box, air bleeding valve, entrance rubber tubing, ultrasonic wave
Flowmeter, first pressure sensor, orifice valve, blood pump, second pressure sensor, outlet rubber tubing and storage blood device；
The blood pump inlet and outlet respectively connected entrance rubber tubing and outlet rubber tubing, the entrance rubber tubing other end
The outlet of the storage blood device is connected in, the outlet rubber tubing other end is connected in the entrance of the storage blood device, and the storage blood device is placed on
In constant water bath box, for ensureing blood pump working media for temperature needed for experiment；The first pressure sensor is connected to blood pump
Entrance, the pressure of blood pump entrance rubber tubing is monitored；The second pressure sensor is connected to the outlet of blood pump
Place, the pressure in outlet rubber tubing is monitored；Described ultrasonic flowmeter is clamped in before first pressure sensor,
For measuring the flow in entrance rubber tubing；The orifice valve is connected between ultrasonic flowmeter and first pressure sensor
Entrance rubber tubing on, coordinate ultrasonic flowmeter adjustment blood pump inlet flow rate；
The displacement measurement unit includes Magnetic gauge stand, digital sampling and processing, D.C. regulated power supply, display and position
Displacement sensor is popped one's head in；Described Magnetic gauge stand holds displacement sensor probe, and displacement sensor probe is connected to data acquisition
Processing module, digital sampling and processing output end are connected to display；Described D.C. regulated power supply and data acquisition process
Module is connected, and required burning voltage when providing measurement for it.
2. all testers of blood pump suspended impeller axial displacement dynamic measurement device are placed on vibration reduction platform, it is used for
Eliminate influence of the extraneous vibration to measurement result, it is ensured that the measurement of impeller micron order displacement.
3. pump case processes 3 equally distributed shoulder holes on blood pump described in, is glued transparent organic glass by glue
In shoulder hole, the axial displacement that displacement sensor probe can detect impeller by transparent organic glass and glycerine water solution becomes
Change.
4. blood pump suspended impeller axial displacement dynamic measurement device described in is visited using Magnetic gauge stand clamping displacement transducer
Head, the base of Magnetic gauge stand are firmly adsorbed on vibration-free tables by magnetic, its adjusting rod by way of coarse adjustment adds fine setting flexibly,
Accurately adjust the position of displacement sensor probe.
Brief description of the drawings
Fig. 1 is the measurement apparatus structural representation of the utility model patent.
Fig. 2 is pump case top view on blood pump.
Fig. 3 is inside blood pump and groove schematic diagram.
Embodiment
Embodiment one：
Illustrate present embodiment with reference to Fig. 1, the blood pump suspended impeller axial displacement dynamic measurement dress described in present embodiment
Putting mainly includes blood pump operating mode regulation and control unit and displacement measurement unit.The blood pump operating mode regulation and control unit includes constant water bath box
（1）, air bleeding valve（2）, entrance rubber tubing（3）, ultrasonic flowmeter（4）, first pressure sensor（5）, orifice valve（6）, blood
Pump（12）, second pressure sensor（13）, outlet rubber tubing（14）With storage blood device（16）.
The blood pump（12）Inlet and outlet respectively connected entrance rubber tubing（3）With outlet rubber tubing（14）, entrance rubber
Plastic pipe（3）The other end is connected in the storage blood device（16）Outlet, export rubber tubing（14）The other end is connected in the storage blood device
（16）Entrance, it is described storage blood device（16）It is placed on constant water bath box（1）In, for ensureing blood pump working media for needed for experiment
Temperature.The first pressure sensor（5）It is placed in blood pump（12）Entrance, to blood pump（12）Entrance rubber tubing（3）Pressure
Power is monitored.The second pressure sensor（13）It is placed in blood pump（12）Exit, to export rubber tubing（14）Interior
Pressure is monitored.Described ultrasonic flowmeter（4）It is clamped in first pressure sensor（5）Before, for measuring entrance rubber
Plastic pipe（3）Interior flow.The orifice valve（6）It is connected to ultrasonic flowmeter（4）With first pressure sensor（5）Between
Entrance rubber tubing（3）On, coordinate ultrasonic flowmeter（4）Adjust the inlet flow rate of blood pump.
The displacement measurement unit includes Magnetic gauge stand（7）, digital sampling and processing（8）, D.C. regulated power supply（9）、
Display（10）And displacement sensor probe（11）.Described Magnetic gauge stand（7）Hold displacement sensor probe（11）, displacement
Sensor probe（11）It is connected to digital sampling and processing（8）, the impeller displacement signal collected is passed into data acquisition
Processing module（8）Input, digital sampling and processing（8）Output end is connected to display（10）, impeller displacement signal process
Digital sampling and processing（8）Display is delivered to after processing（10）Upper display.Described D.C. regulated power supply（9）Adopted with data
Collect processing module（8）Required burning voltage when being connected, and measurement is provided for it.
Embodiment two：
Illustrate present embodiment with reference to Fig. 1, present embodiment is to the blood pump suspended impeller described in embodiment one
The further explanation of axial displacement dynamic measurement device, all testers are placed on vibration reduction platform（15）On, it is outer for eliminating
Boundary vibrates the influence to measurement result.
Embodiment three：
Illustrate present embodiment, the blood pump of present embodiment with reference to Fig. 3（12）Interior liquid be and blood equivalent viscosities
Glycerine water solution（22）.
Embodiment four：
Present embodiment is to the blood pump suspended impeller axial displacement dynamic measurement device described in embodiment one
Further illustrate, the measurement apparatus utilizes Magnetic gauge stand（7）Clamp displacement sensor probe（11）, Magnetic gauge stand（7）Base
Firmly adsorbed in vibration-free tables by magnetic（15）On, its adjusting rod is flexible by way of coarse adjustment adds fine setting, accurately adjusts position
Displacement sensor is popped one's head in（11）Position.
Embodiment five：
Illustrate present embodiment with reference to Fig. 2 and Fig. 3, pump case on the blood pump of present embodiment（18）Process 3 uniformly
The shoulder hole of distribution（17）, pass through glue（19）By transparent organic glass（20）It is bonded at shoulder hole（17）It is interior, can be in diverse location
Groove measurement suspended impeller（21）Axial displacement value, analyze and compare impeller（21）Actual eccentricities.
Embodiment six：
Illustrate present embodiment with reference to Fig. 1, before measurement, first by circulation loop and blood pump（12）It is interior to be full of glycerine water solution
（22）, then open storage blood device（16）On air bleeding valve（2）, discharge the gas in circulation loop.Start blood pump（12）, set permanent
Warm water bath cabinet（1）Experimental temperature, in constant water bath box（1）After reaching design temperature, according to first pressure sensor（5）,
Two pressure sensors（13）And ultrasonic flowmeter（4）Monitoring result, adjust orifice valve（6）Make blood pump（12）Running status
Meet experiment condition.Pass through Magnetic gauge stand constantly regulate displacement sensor probe（11）Position, until data acquisition process mould
Block（8）On indicator lamp when lighting, show that probe is adjusted in measurement range.Finally check display（10）On impeller
Axial displacement change curve simultaneously preserves corresponding data.
Claims (4)
- A kind of 1. blood pump suspended impeller axial displacement dynamic measurement device, it is characterised in that：The device mainly includes blood pump operating mode Regulate and control unit and displacement measurement unit two parts；The blood pump operating mode regulation and control unit includes constant water bath box（1）, air bleeding valve（2）、 Entrance rubber tubing（3）, ultrasonic flowmeter（4）, first pressure sensor（5）, orifice valve（6）, blood pump（12）, second pressure Sensor（13）, outlet rubber tubing（14）With storage blood device（16）；The blood pump（12）Inlet and outlet respectively connected entrance rubber Pipeline（3）With outlet rubber tubing（14）, entrance rubber tubing（3）The other end is connected in the storage blood device（16）Outlet, outlet Rubber tubing（14）The other end is connected in the storage blood device（16）Entrance, it is described storage blood device（16）It is placed on constant water bath box（1） In, for ensureing blood pump working media for temperature needed for experiment；The first pressure sensor（5）It is connected to blood pump（12）Enter At mouthful, to blood pump（12）Entrance rubber tubing（3）Pressure be monitored；The second pressure sensor（13）It is connected to blood pump （12）Exit, to export rubber tubing（14）Interior pressure is monitored；Described ultrasonic flowmeter（4）It is clamped in One pressure sensor（5）Before, for measuring entrance rubber tubing（3）Interior flow；The orifice valve（6）It is connected to ultrasonic wave Flowmeter（4）With first pressure sensor（5）Between entrance rubber tubing（3）On, coordinate ultrasonic flowmeter（4）Adjust blood The inlet flow rate of pump；The displacement measurement unit includes Magnetic gauge stand（7）, digital sampling and processing（8）, D.C. regulated power supply （9）, display（10）And displacement sensor probe（11）；Described Magnetic gauge stand（7）Hold displacement sensor probe（11）, Displacement sensor probe（11）It is connected to digital sampling and processing（8）, digital sampling and processing（8）Output end is connected to show Show device（10）；Described D.C. regulated power supply（9）And digital sampling and processing（8）It is required when being connected, and measurement is provided for it Burning voltage.
- 2. blood pump suspended impeller axial displacement dynamic measurement device according to claim 1, it is characterised in that：All tests Instrument is placed on vibration reduction platform（15）On, for eliminating influence of the extraneous vibration to measurement result, it is ensured that impeller micron order displacement Measurement.
- 3. blood pump suspended impeller axial displacement dynamic measurement device according to claim 1, it is characterised in that：Pump on blood pump Shell（18）Process 3 equally distributed shoulder holes（17）, pass through glue（19）By transparent organic glass（20）It is bonded at shoulder hole （17）It is interior, displacement sensor probe（11）Transparent organic glass can be passed through（20）And glycerine water solution（22）Detect impeller（21）'s Axial displacement changes.
- 4. blood pump suspended impeller axial displacement dynamic measurement device according to claim 1, it is characterised in that：Utilize magnetic Gauge stand（7）Clamp displacement sensor probe（11）, Magnetic gauge stand（7）Base firmly adsorbed in vibration reduction platform by magnetic（15） On, its adjusting rod is flexible by way of coarse adjustment adds fine setting, accurately adjusts displacement sensor probe（11）Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720046837.9U CN206934393U (en) | 2017-01-16 | 2017-01-16 | A kind of blood pump suspended impeller axial displacement dynamic measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720046837.9U CN206934393U (en) | 2017-01-16 | 2017-01-16 | A kind of blood pump suspended impeller axial displacement dynamic measurement device |
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| Publication Number | Publication Date |
|---|---|
| CN206934393U true CN206934393U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720046837.9U Expired - Fee Related CN206934393U (en) | 2017-01-16 | 2017-01-16 | A kind of blood pump suspended impeller axial displacement dynamic measurement device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN113323889A (en) * | 2021-06-09 | 2021-08-31 | 苏州心擎医疗技术有限公司 | Force measuring platform for performing hydraulics test on shaftless suspension pump |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
-
2017
- 2017-01-16 CN CN201720046837.9U patent/CN206934393U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| CN113323889A (en) * | 2021-06-09 | 2021-08-31 | 苏州心擎医疗技术有限公司 | Force measuring platform for performing hydraulics test on shaftless suspension pump |
| CN113323889B (en) * | 2021-06-09 | 2022-08-05 | 苏州心擎医疗技术有限公司 | Force measuring platform for performing hydraulics test on shaftless suspension pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 Termination date: 20190116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |