CN109253859A - A kind of heart valve experimental rig - Google Patents
A kind of heart valve experimental rig Download PDFInfo
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- CN109253859A CN109253859A CN201811257862.7A CN201811257862A CN109253859A CN 109253859 A CN109253859 A CN 109253859A CN 201811257862 A CN201811257862 A CN 201811257862A CN 109253859 A CN109253859 A CN 109253859A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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Abstract
The present invention provides a kind of heart valve experimental rigs, be characterized in that: it mainly includes liquid circulation for giving pressure maintaining unit, fluid temperature holding unit and valve performance measurement unit, the liquid circulation includes liquid tank for giving pressure maintaining unit, pump, sink and liquid tank pressure gauge, the liquid tank top is communicated with liquid tank pressure gauge, the liquid tank lower part is communicated with pump, one end of the pump is communicated with water pipe, the water pipe protrudes into sink, the water tank is equipped with blood simulated solutions, the fluid temperature holding unit includes temperature control table, liquid tank heating device and flume heating apparatus, the temperature control table is separately connected liquid tank heating device and flume heating apparatus, the temperature control table is mounted on the bottom of liquid tank and is located at the opposite side of valve performance measurement unit, the liquid tank Heating device and flume heating apparatus are separately mounted to the bottom of liquid tank and sink.
Description
Technical field
The present invention relates to heart valve technical field more particularly to heart valve experimental rig fields.
Background technique
Currently, rheumatic heart disease is one of China's common disease, the disease incidence of especially south China is especially high, adult's morbidity
Rate is 2.98%, and usually all lesion is to that can not carry out operative repair or correction for the heart valve of the urgent patient of this disease, uniquely
The replacement for effectively carrying out heart valve prosthesis could save life.It is provided according to GB12279-2008, heart valve prosthesis
External hydrodynamics test is carried out, the performance detection of various heart valves, the control of the quality of finished product, valve type Improvement are
The formulation of heart valve Quality Inspection Criteria and the foundation of inspection center provide reliable technical foundation.
Heart valve performance vitro detection technology and device include heart valve prosthesis static state forward-flow experimental rig, stable state
Leakage experiment device, Pulsating Flow experimental rig.Existing artificial mechanical heart valve's static test is continued to use and traditional is simply set
Standby, device fluctuation of service, performance is unreliable, and complicated for operation, while flowing and physiology item near simulation heart valve
Each state modulator is not able to satisfy the requirement accurately tested when part.
Summary of the invention
To overcome the above-mentioned problems in the prior art, the present invention provides a kind of heart valve experimental rigs, mainly
Including liquid circulation for giving pressure maintaining unit, fluid temperature holding unit and valve performance measurement unit, the liquid is followed
Ring includes liquid tank, pump, sink and liquid tank pressure gauge for giving pressure maintaining unit, and the liquid tank top is communicated with liquid
Pressure tank table, the liquid tank lower part are communicated with pump, and one end of the pump is communicated with water pipe, and the water pipe protrudes into water
In slot, the water tank is equipped with blood simulated solution, the fluid temperature holding unit includes temperature control table, liquid tank heating dress
It sets and flume heating apparatus, the temperature control table is separately connected liquid tank heating device and flume heating apparatus, the temperature
Control table is mounted on the bottom of liquid tank and is located at the opposite side of valve performance measurement unit, the liquid tank heating device and water
Tank heater is separately mounted to the bottom of liquid tank and sink, and the valve performance measurement unit includes detection device, pressure
Table, pressure reducing valve, flowmeter, the both ends of the flowmeter are respectively communicated with liquid tank and pressure reducing valve, the both ends difference of the pressure gauge
Connection pressure reducing valve and detection device, the detection device are communicated with liquid outlet, and the liquid outlet protrudes into sink, the liquid
The lower end of body outlet is located at the top of the liquid level of blood simulated solution.
On this basis, the lower part of the liquid tank is funnel type structure, and the lower end of the funnel type structure is equipped with liquid
Mouth under tank, mouth passes through connecting pipe connection pump under the liquid tank.
On this basis, the connecting pipeline is preferably tee tube, the tee tube have suitable for reading, lower mouth and side port, three
The suitable for reading of siphunculus is connected with liquid tank lower part, and the lower mouth of tee tube is connected with pump top, and the side port is connected to by pipeline
There is overflow valve, the lower end of the overflow valve is communicated with fluid outlet, and the fluid outlet protrudes into sink, the fluid outlet
Lower end is located at the ullage of blood simulated solution.
On this basis, the position that the top of the liquid tank corresponds to liquid tank pressure gauge is communicated with air-outlet valve, described
Air-outlet valve is used to keep the air pressure in liquid tank.
On this basis, the water inlet of the water pipe is equipped with filter, and the filter enters for filtering
Blood simulated solution before liquid tank.
On this basis, the water inlet of the water pipe is close to bottom of gullet.
Compared with prior art, the beneficial effects of the present invention are: liquid circulation is for giving pressure maintaining unit, fluid temperature
Holding unit and valve performance measurement unit match so that the present apparatus, it can be achieved that heart valve prosthesis static state forward-flow test,
Ambient stable is tested, reliable performance has greatly the promotion of heart valve prosthesis verification experimental verification and production detection working efficiency
Effect.
Detailed description of the invention
Fig. 1 is the structure chart of heart valve experimental provision of the present invention.
In figure: 1: liquid tank；2: air-outlet valve；3: temperature control table；4: tee tube；5: pump；6: filter；7: sink；
8: detection device；9: pressure gauge；10: pressure reducing valve；11: liquid tank pressure gauge；12: overflow valve；13: flowmeter；14: liquid discharge
Mouthful；15: fluid outlet；16: blood simulated solution
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific examples are only used to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the present invention schematically illustrates a kind of heart valve experimental rig.
The present invention discloses a kind of heart valve experimental rigs, as shown in Figure 1, a kind of heart provided in an embodiment of the present invention
Valve test device mainly includes liquid circulation for giving pressure maintaining unit, fluid temperature holding unit and valve performance
Measuring unit, the liquid circulation confession give pressure maintaining unit and include liquid tank 1, pump 5, sink 7 and liquid tank pressure gauge 11,
1 top of liquid tank is communicated with liquid tank pressure gauge 11, and the liquid tank pressure gauge 11 is used to show the pressure in liquid tank 1
Value, 1 lower part of liquid tank are communicated with pump 5, and the pump 5 is communicated with water pipe, and the water pipe protrudes into sink 7, institute
It states sink 7 and is provided with blood simulated solution 16, the pump 5 sucks blood simulated solution 16 in liquid tank 1 by water passage, described
Blood simulated solution 16 is one or more kinds of combinations of isotonic saline solution, blood or equivalent blood.
The fluid temperature holding unit includes temperature control table 3, liquid tank heating device and flume heating apparatus, described
Temperature control table 3 is separately connected liquid tank heating device and flume heating apparatus, and the temperature control table 3 is mounted on liquid tank 1
Bottom and be located at valve performance measurement unit opposite side, the liquid tank heating device and flume heating apparatus are installed respectively
In the bottom of liquid tank 1 and sink 7, the 3 synchronously control liquid tank heating device of temperature control table and flume heating apparatus, with
Guarantee that liquid tank 1 is identical with the liquid problem in sink 7.
Wherein, the valve performance measurement unit includes detection device 8, pressure gauge 9, pressure reducing valve 10, flowmeter 13, described
The both ends of flowmeter 13 are respectively communicated with liquid tank 1 and pressure reducing valve 10, and the both ends of the pressure gauge 9 are respectively communicated with pressure reducing valve 10 and inspection
Device 8 is surveyed, one end of the detection device 8 is communicated with liquid outlet 14, and the liquid outlet 14 protrudes into sink 7, the inspection
It surveys device to be mainly used for realizing the replacement that is installed on of artificial mechanism heart, and provides a closed measurement environment, and detect
Device 8 is replaceable component.
Wherein, the lower part of the liquid tank 1 is funnel type structure, and the lower end of the funnel type structure is equipped under liquid tank
Mouthful, mouth passes through connecting pipe connection pump 5 under the liquid tank.
Wherein, the connecting pipe is preferably tee tube, and the tee tube has suitable for reading, lower mouth and side port, tee tube
Suitable for reading to be connected with 1 lower part of liquid tank, the lower mouth of tee tube is connected with 5 tops of pump, and the side port is communicated with excessive by pipeline
Valve 12 is flowed, the lower end of the overflow valve 12 is communicated with fluid outlet 15, and the fluid outlet 15 protrudes into sink 7.
Wherein, the position that the top of the liquid tank 1 corresponds to liquid tank pressure gauge 11 is communicated with air-outlet valve 2, described to let out
Air valve 2 is used to keep the air pressure in liquid tank 1.
Wherein, the water inlet of the water pipe is equipped with filter 6, and the filter 6 enters liquid for filtering
Blood simulated solution 16 before tank 1.
Wherein, the water inlet of the water pipe is close to 7 bottom of sink.
Wherein, the lower end of the liquid outlet 14 is located at the top of 16 liquid level of blood simulated solution.
Wherein, the lower end of the fluid outlet 15 is located at the ullage of blood simulated solution 16.
In use, the preparation before equipment use is first done, it is specific as follows:
Firstly, opening or opening to the maximum air-outlet valve 2, pressure reducing valve 10 and overflow valve 12；Being then turned on pump 5 makes device work,
And the controller that pump 5 is arranged makes its work under subscription parameters；Then successively regulation relief valve 12, air-outlet valve 2, pressure reducing valve 10
To test setting value；Secondly, closing air-outlet valve 2 when liquid is more than its volume half in liquid tank 1.Finally, adjusting again
Pressure reducing valve 10 and pump 5 maintain the pressure of liquid filling 1 under one stable test parameters, complete preparation.
Start test job, artificial mechanical heart valve is installed in detection device 8 first；Then pressure reducing valve 10 is adjusted
With pump 1 make liquid fill 1 pressure maintain experimental test needed under constant pressure, the constant pressure can fill pressure gauge 11 from liquid
Middle reading value；Secondly, making the liquid inlet pressure of detection device 8 be maintained at number needed for test by adjusting pressure reducing valve 10 again
The pressure value of value, the liquid inlet pressure of the detection device 8 is shown by pressure gauge 9；Finally, under conditions of differential pressure,
Read different values by flowmeter 13 reflect the test artificial mechanical heart valve's static state forward-flow performance.
In conclusion the present invention be directed to the experimental rigs of static forward-flow experimental design, it then follows the similar reason of hydrodynamics
By the design requirement of test apparatus follows newest national standard GB12279-2008 requirement, guarantees the flowing and life near heart valve
Manage bar part is similar, and when measurement range is 5L/min~30L, flow is measured valvular across valve with the increase of 5L/min stride
The pressure of pressure difference and calibrating nozzle.
The liquid circulation matches for giving pressure maintaining unit, fluid temperature holding unit and valve performance measurement unit
It closes, so that the present apparatus is, it can be achieved that the test of heart valve prosthesis static state forward-flow, tests ambient stable, reliable performance, for artificial
The promotion of heart valve verification experimental verification and production detection working efficiency has very big effect.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and
Environment, and can be changed within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge
It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention
In scope of protection of the claims.
Claims (5)
1. a kind of heart valve experimental rig, it is characterised in that: it mainly includes liquid circulation for giving pressure maintaining unit, liquid
Temperature holding unit and valve performance measurement unit, the liquid circulation for give pressure maintaining unit include liquid tank (1),
(5), sink (7) and liquid tank pressure gauge (11) are pumped, liquid tank (1) top is communicated with liquid tank pressure gauge (11), described
Liquid tank (1) lower part is communicated with pump (5), and one end of the pump (5) is communicated with water pipe, and the water pipe protrudes into sink
(7) in, the sink (7) is provided with blood simulated solution (16), the fluid temperature holding unit include temperature control table (3),
Liquid tank (1) heating device and sink (7) heating device, the temperature control table (3) are separately connected liquid tank (1) heating device
With sink (7) heating device, the temperature control table (3) is mounted on the bottom of liquid tank (1) and is located at valve performance measurement list
The opposite side of member, liquid tank (1) heating device and sink (7) heating device are separately mounted to liquid tank (1) and sink (7)
Bottom, the valve performance measurement unit includes detection device (8), pressure gauge (9), pressure reducing valve (10), flowmeter (13), institute
The both ends for stating flowmeter (13) are respectively communicated with liquid tank (1) and pressure reducing valve (10), and the both ends of the pressure gauge (9), which are respectively communicated with, to be subtracted
One end of pressure valve (10) and detection device (8), the detection device (8) is communicated with liquid outlet (14), the liquid outlet
(14) it protrudes into sink (7), the lower end of the liquid outlet (14) is located at the top of the liquid level of blood simulated solution (16).
2. a kind of heart valve experimental rig according to claim 1, it is characterised in that: the lower part of the liquid tank (1)
Lower end for funnel type structure, the funnel type structure is equipped with mouth under liquid tank (1), and mouth passes through connection under the liquid tank (1)
Pipeline connection pump (5), the connecting pipe is preferably tee tube (4), the tee tube (4) have suitable for reading, lower mouth and side port, three
Suitable for reading and liquid tank (1) lower part of siphunculus (4) is connected, and the lower mouth of tee tube (4) is connected with pump (5) top, the side port
It is communicated with overflow valve (12) by pipeline, the lower end of the overflow valve (12) is communicated with fluid outlet (15), the fluid outlet
(15) it protrudes into sink (7), the lower end of the fluid outlet (15) is located at the ullage of blood simulated solution (16).
3. a kind of heart valve experimental rig according to claim 2, it is characterised in that: the top of the liquid tank (1)
The position of corresponding liquid tank pressure gauge (11) is communicated with air-outlet valve (2), and the air-outlet valve (2) is used to keep liquid tank (1)
Interior air pressure.
4. a kind of heart valve experimental rig according to claim 1, it is characterised in that: the water inlet of the water pipe
Place is equipped with filter (6), and the filter (6) is used to filter the blood simulated solution (16) before entering liquid tank (1).
5. a kind of heart valve experimental rig according to claim 1, it is characterised in that: the water inlet of the water pipe
Close to sink (7) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257862.7A CN109253859A (en) | 2018-10-27 | 2018-10-27 | A kind of heart valve experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257862.7A CN109253859A (en) | 2018-10-27 | 2018-10-27 | A kind of heart valve experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109253859A true CN109253859A (en) | 2019-01-22 |
Family
ID=65046632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811257862.7A Pending CN109253859A (en) | 2018-10-27 | 2018-10-27 | A kind of heart valve experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253859A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269727A (en) * | 2019-06-27 | 2019-09-24 | 湖北雄志医疗设备科技有限公司 | A kind of bionical test simulation dynamic device of Artificial Intervention mechanical heart valve |
| CN111307379A (en) * | 2020-04-20 | 2020-06-19 | 山东省医疗器械产品质量检验中心 | Automatic tester for bag type plastic container for human blood and blood components |
| US11109973B2 (en) | 2020-01-15 | 2021-09-07 | Biomedical Device Consultants and Laboratories of Colorado, LLC | System for evaluation of prosthetic heart valves under steady hydrodynamic conditions |
-
2018
- 2018-10-27 CN CN201811257862.7A patent/CN109253859A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269727A (en) * | 2019-06-27 | 2019-09-24 | 湖北雄志医疗设备科技有限公司 | A kind of bionical test simulation dynamic device of Artificial Intervention mechanical heart valve |
| US11109973B2 (en) | 2020-01-15 | 2021-09-07 | Biomedical Device Consultants and Laboratories of Colorado, LLC | System for evaluation of prosthetic heart valves under steady hydrodynamic conditions |
| CN111307379A (en) * | 2020-04-20 | 2020-06-19 | 山东省医疗器械产品质量检验中心 | Automatic tester for bag type plastic container for human blood and blood components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190122 |