CN205104127U - A arterial compliance analogue means for external simulation circulation system - Google Patents
A arterial compliance analogue means for external simulation circulation system Download PDFInfo
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- CN205104127U CN205104127U CN201520905118.9U CN201520905118U CN205104127U CN 205104127 U CN205104127 U CN 205104127U CN 201520905118 U CN201520905118 U CN 201520905118U CN 205104127 U CN205104127 U CN 205104127U
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- 230000004087 circulation Effects 0.000 title claims abstract description 22
- 238000004088 simulation Methods 0.000 title abstract description 13
- 238000000338 in vitro Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002861 ventricular Effects 0.000 description 3
- 230000002526 effect on cardiovascular system Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003205 diastolic effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000035485 pulse pressure Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to an arterial compliance analogue means for external simulation circulation system, including upper end open -ended compliance room, the threaded rod, the drive portion that locates the indoor piston of compliance and be connected with the upper portion of piston, the end cover is installed to the open end of compliance room, the threaded rod includes the screw body of rod, install the threaded rod head in screw body of rod one end, be equipped with the recess along the axial on the piston, the exhaust hole, exhaust hole department is provided with closure member, drive portion opens along the axial has first through -hole, the second through -hole, the aperture of first through -hole is less than the aperture of second through -hole, the threaded rod head is located the space that recess and second through -hole enclose, the screw body of rod passes first through -hole, end cover and with end cover threaded connection. The utility model discloses the pressure of compliance room air is unchangeable, and rotatory threaded rod drives the piston and reciprocates, changes the air volume, can change the compliance value, and convenient and fast, fast speed adjusting put in order any one the compliance value in the adjustable range, the human compliance value of accurate simulation.
Description
Technical field
The utility model relates to a kind of analogue means, particularly relates to a kind of arterial compliance analogue means for the in-vitro simulated circulation system.
Background technology
Simulation circulating system is the device of a set of simulation blood circulation of human body, provides the in-vitro evaluation platform of various cardiovascular artificial organs performance and physiological compatibility, comprises the test of ventricular assist device or artificial mechanical valve prosthesis.At present, the testing in vitro result obtained in simulation circulating system has jointly become cardiovascular artificial organs and has obtained the important evidence before clinical license with zoopery.Simulation circulating system comprises the ventricle simulator of simulation ventricle blood-pumping function and the element of simulated blood vessel elasticity and resistance, by compliance and the resistance of the heart rate of adjustment ventricle simulator, systole phase diastolic ratio, stroke volume, vascular element, the cardiac output under various physiological status, ventricular pressure, sound pulse pressure and other important hemodynamic parameters can be obtained.
The vascular element used in the simulation circulating system of current exploitation cannot realize the function quantitatively regulating compliance.Wu Shunjie (design of the pneumatic ventricular assist device of a kind of non-blood contact and testing in vitro [J]. Chinese Journal of Medical Instrumentation, 2011,35 (6): 398-341.) the arterial compliance room designed, adopt traditional structure, as shown in Figure 1, on the 1a of compliance room, use the vacuum pump 1b that manual, what 1c represented is tensimeter, the air capacity changed in the 1a of compliance room on liquid level changes compliance, as can be seen from following formula (1):
C=V/P（1）
C---compliance
The volume of air in V---compliance room
The pressure of air in P---compliance room
In formula, the pressure of air and volume are all variablees, in compliance room, pass into gas, pressure and the volume of air all change at every turn, so calculate the value that value not necessarily can meet Human physiology, be difficult to the value adjusted to required for physiological status, cannot accurate simulation human body compliance value.Therefore the structure will improving compliance room is badly in need of.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of arterial compliance analogue means for the in-vitro simulated circulation system.
For achieving the above object, the technical solution adopted in the utility model is: a kind of arterial compliance analogue means for the in-vitro simulated circulation system, comprise the compliance room of upper end open, threaded rod, the piston being located at described compliance indoor and the drive portion be connected with the top of described piston, the openend of described compliance room is provided with end cap, described threaded rod comprises the screw thread body of rod, be arranged on the threaded rod head of described screw thread body of rod one end, described piston is provided with groove vertically, vent port, described vent port place is provided with opening and closing element, described drive portion has the first through hole vertically, second through hole, the aperture of described first through hole is less than the aperture of described second through hole, described threaded rod head is positioned at the space that described groove and described second through hole surround, the described screw thread body of rod is through described first through hole, end cap and being threaded with described end cap.
In the utility model preferred embodiment, the lateral surface that a kind of arterial compliance analogue means for the in-vitro simulated circulation system comprises described end cap is further connected with the inner thread of described compliance room.
In the utility model preferred embodiment, the lower, outer perimeter face that a kind of arterial compliance analogue means for the in-vitro simulated circulation system comprises described piston is further provided with at least one ring groove, is provided with O-ring seal in described ring groove.
In the utility model preferred embodiment, the quantity that a kind of arterial compliance analogue means for the in-vitro simulated circulation system comprises described ring groove is further two, and two described ring grooves are arranged vertically.
In the utility model preferred embodiment, it is threaded hole that a kind of arterial compliance analogue means for the in-vitro simulated circulation system comprises described second through hole further, and the top of described piston is connected with described second through hole whorl.
In the utility model preferred embodiment, it is vent valve that a kind of arterial compliance analogue means for the in-vitro simulated circulation system comprises described opening and closing element further.
In the utility model preferred embodiment, the bottom that a kind of arterial compliance analogue means for the in-vitro simulated circulation system comprises described compliance room is further provided with inlet, liquid outlet and pressure transducer connector.
In the utility model preferred embodiment, a kind of arterial compliance analogue means for the in-vitro simulated circulation system comprises the square that described compliance room comprises cylinder and is arranged on described cylinder bottom further, described cylinder is communicated with described square, and described inlet, liquid outlet and pressure transducer connector are opened on described square.
The utility model solves the defect existed in background technology, the utility model piston is provided with vent port, make the pressure of compliance room air constant, drive piston to move up and down by rotating threaded rod, realize the adjustment of piston position, change the volume of air, compliance value can be changed, convenient and swift, adjust to any one the compliance value in adjustable extent fast, accurate simulation human body compliance value.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the compliance cell structure schematic diagram of existing simulation circulating system;
Fig. 2 is the wiring layout of preferred embodiment of the present utility model;
Fig. 3 is the decomposition texture schematic diagram of preferred embodiment of the present utility model;
Fig. 4 is the decomposition texture schematic diagram of the threaded rod of preferred embodiment of the present utility model, drive portion and piston;
Fig. 5 is another decomposition texture schematic diagram of the threaded rod of preferred embodiment of the present utility model, drive portion and piston;
In figure: 2, compliance room, 4, piston, 6, drive portion, 8, end cap, 10, the screw thread body of rod, 12, threaded rod head, 14, groove, 16, vent port, 18, opening and closing element, 20, the first through hole, the 22, second through hole, 24, ring groove, 26, O-ring seal, 28, inlet, 30, liquid outlet, 32, pressure transducer connector.
Embodiment
Be described in further detail the utility model in conjunction with the accompanying drawings and embodiments now, these accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Figure 2-Figure 5, a kind of arterial compliance analogue means for the in-vitro simulated circulation system, comprise the compliance room 2 of upper end open, threaded rod, the drive portion 6 being located at the piston 4 in compliance room 2 and being connected with the top of piston 4, the openend of compliance room 2 is provided with end cap 8, threaded rod comprises the screw thread body of rod 10, be arranged on the threaded rod head 12 of the screw thread body of rod 10 one end, the external diameter of threaded rod head 12 is greater than the external diameter of the screw thread body of rod 10, piston 4 is provided with groove 14 vertically, vent port 16, vent port 16 place is provided with opening and closing element 18, drive portion 6 has the first through hole 20 vertically, second through hole 22, the aperture of the first through hole 20 is less than the aperture of the second through hole 22, the external diameter of threaded rod head 12 is greater than the aperture of the first through hole 20, threaded rod head 12 is positioned at the space that groove 14 and the second through hole 22 surround, threaded rod head 12 can move a little up and down in the space surrounded, the screw thread body of rod 10 is through the first through hole 20, end cap 8 and being threaded with end cap 8.
The lateral surface of the preferred end cap 8 of the utility model is connected with the inner thread of compliance room 2, and assembling is quick, and stable connection.
The lower, outer perimeter face of the preferred piston 4 of the utility model is provided with at least one ring groove 24, is provided with O-ring seal 26 in ring groove 24.Further preferably the quantity of ring groove 24 is two, and two ring grooves 24 are arranged vertically, avoids leaking gas and can realize the movement of piston 4.
Second through hole 22 is threaded hole, and the top of piston 4 is threaded with the second through hole 22.
The preferred opening and closing element 18 of the utility model is vent valve, but is not limited to vent valve, also can be stopper.
The bottom of compliance room 2 is provided with inlet 28, liquid outlet 30 and pressure transducer connector 32.Preferred compliance room 2 comprises cylinder 34 and is arranged on the square 36 of cylinder 34 bottom, and cylinder 34 is communicated with square 36, and inlet 28, liquid outlet 30 and pressure transducer connector 32 are opened on square 36.
The utility model is when simulating compliance, first in whole simulation circulating system, liquid is added, opening and closing element 18 on piston 4 in compliance room 2 is opened, make compliance room 2 identical with atmospheric pressure, P in such compliance room 2 is constant, with the square 36 in compliance room 2 with cylinder 34 intersection for adjusting the boundary of liquid level, then rotating threaded rod body 10 drives piston 4 to move up and down by threaded rod head 12, the position of adjustment piston 4, thus change volume of air, change compliance value C, when adjusting to desired compliance value, threaded rod is motionless, end cap 8 is outwarded winding, close the opening and closing element 18 above piston 4 in compliance room 2, again end cap 8 is tightened on and complies with on room 2.
Above according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related personnel in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on instructions, must determine technical scope according to right.
Claims (8)
1. the arterial compliance analogue means for the in-vitro simulated circulation system, it is characterized in that: the compliance room comprising upper end open, threaded rod, the piston being located at described compliance indoor and the drive portion be connected with the top of described piston, the openend of described compliance room is provided with end cap, described threaded rod comprises the screw thread body of rod, be arranged on the threaded rod head of described screw thread body of rod one end, described piston is provided with groove vertically, vent port, described vent port place is provided with opening and closing element, described drive portion has the first through hole vertically, second through hole, the aperture of described first through hole is less than the aperture of described second through hole, described threaded rod head is positioned at the space that described groove and described second through hole surround, the described screw thread body of rod is through described first through hole, end cap and being threaded with described end cap.
2. a kind of arterial compliance analogue means for the in-vitro simulated circulation system according to claim 1, is characterized in that: the lateral surface of described end cap is connected with the inner thread of described compliance room.
3. a kind of arterial compliance analogue means for the in-vitro simulated circulation system according to claim 1, is characterized in that: the lower, outer perimeter face of described piston is provided with at least one ring groove, is provided with O-ring seal in described ring groove.
4. a kind of arterial compliance analogue means for the in-vitro simulated circulation system according to claim 3, is characterized in that: the quantity of described ring groove is two, and two described ring grooves are arranged vertically.
5. a kind of arterial compliance analogue means for the in-vitro simulated circulation system according to claim 1, is characterized in that: described second through hole is threaded hole, and the top of described piston is connected with described second through hole whorl.
6. a kind of arterial compliance analogue means for the in-vitro simulated circulation system according to claim 1, is characterized in that: described opening and closing element is vent valve.
7. a kind of arterial compliance analogue means for the in-vitro simulated circulation system according to claim 1, is characterized in that: the bottom of described compliance room is provided with inlet, liquid outlet and pressure transducer connector.
8. a kind of arterial compliance analogue means for the in-vitro simulated circulation system according to claim 7, it is characterized in that: described compliance room comprises cylinder and is arranged on the square of described cylinder bottom, described cylinder is communicated with described square, and described inlet, liquid outlet and pressure transducer connector are opened on described square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905118.9U CN205104127U (en) | 2015-11-13 | 2015-11-13 | A arterial compliance analogue means for external simulation circulation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905118.9U CN205104127U (en) | 2015-11-13 | 2015-11-13 | A arterial compliance analogue means for external simulation circulation system |
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| CN205104127U true CN205104127U (en) | 2016-03-23 |
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| CN201520905118.9U Active CN205104127U (en) | 2015-11-13 | 2015-11-13 | A arterial compliance analogue means for external simulation circulation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847038A (en) * | 2017-04-10 | 2017-06-13 | 上海市杨浦区中心医院 | Radial artery puncturing practises model |
| CN110648580A (en) * | 2019-09-29 | 2020-01-03 | 哈尔滨理工大学 | Experimental device for simulating left ventricle function |
| CN113674600A (en) * | 2021-08-10 | 2021-11-19 | 哈尔滨理工大学 | External simulation circulation system of controllable formula in left atrium |
| CN114047014A (en) * | 2021-11-18 | 2022-02-15 | 山东大学 | Artery compliance simulation device and using method and application thereof |
| CN114333531A (en) * | 2022-03-16 | 2022-04-12 | 中山市人民医院 | ECMO simulation practical training human body model convenient for exhaust |
-
2015
- 2015-11-13 CN CN201520905118.9U patent/CN205104127U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847038A (en) * | 2017-04-10 | 2017-06-13 | 上海市杨浦区中心医院 | Radial artery puncturing practises model |
| CN110648580A (en) * | 2019-09-29 | 2020-01-03 | 哈尔滨理工大学 | Experimental device for simulating left ventricle function |
| CN113674600A (en) * | 2021-08-10 | 2021-11-19 | 哈尔滨理工大学 | External simulation circulation system of controllable formula in left atrium |
| CN114047014A (en) * | 2021-11-18 | 2022-02-15 | 山东大学 | Artery compliance simulation device and using method and application thereof |
| CN114333531A (en) * | 2022-03-16 | 2022-04-12 | 中山市人民医院 | ECMO simulation practical training human body model convenient for exhaust |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210903 Address after: Room 311-312, building 2, No. 8, Jinfeng Road, science and Technology City, high tech Zone, Suzhou, Jiangsu 215000 Patentee after: SUZHOU XINQING MEDICAL TECHNOLOGY Co.,Ltd. Address before: 215000 199 Ren Yan Road, Suzhou Industrial Park, Jiangsu Patentee before: SOOCHOW University |
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| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Room 801, 802, 803, 804, Building 7, No. 188 Fuchunjiang Road, High-tech Zone, Suzhou City, Jiangsu Province, 215163 Patentee after: Xinqing Medical (Suzhou) Co.,Ltd. Address before: Room 311-312, building 2, No. 8, Jinfeng Road, science and Technology City, high tech Zone, Suzhou, Jiangsu 215000 Patentee before: SUZHOU XINQING MEDICAL TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |