CN104950130A - Flow speed testing instrument for medical catheter - Google Patents
Flow speed testing instrument for medical catheter Download PDFInfo
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- CN104950130A CN104950130A CN201510405837.9A CN201510405837A CN104950130A CN 104950130 A CN104950130 A CN 104950130A CN 201510405837 A CN201510405837 A CN 201510405837A CN 104950130 A CN104950130 A CN 104950130A
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- water
- medical catheter
- lower header
- flow speed
- cabinet
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Abstract
The invention discloses a flow speed testing instrument for a medical catheter. The flow speed testing instrument comprises a case, a closed-circulation constant-temperature water bath device, an operation platform and an adjustment control system, wherein the closed-circulation constant-temperature water bath device comprises an upper water tank and a lower water tank, a water inlet pipe orifice of the upper water tank is connected with an outlet of the lower water tank through an upper water pipe, a water outlet I of the upper water tank is connected with the lower water tank through a lower water pipe, and the closed-circulation constant-temperature water bath device is located in the case; a sample holder and a water receiving box are arranged on the operation platform, and the operation platform is located at the lower part of the case; the adjustment control system comprises a control panel and a computer and connected with the closed-circulation constant-temperature water bath device and a mass sensor respectively; the control panel is located on the case above the operation platform; the computer is located outside the case. The flow speed instrument for the medical catheter provides an equipment support for the flow speed detection of the medical catheter and is controlled by the computer, so that the flow speed detection accuracy of the medical catheter is improved, data detection of a flow speed performance index of the medical catheter is performed, and the flow speed testing instrument for the medical catheter has good practicability and popularization value.
Description
Technical field
The present invention relates to medical catheter pick-up unit technical field, particularly relate to medical catheter flow meters.
Background technology
Central venous catheter belongs to the one of Ink vessel transfusing pipe, is positioned in vena cava.Venous transfusion in a large number and fast, often appears at the operation that blood loss may be larger, or maintains blood pressure during first aid.Domestic market also there is no medical catheter flow velocity tester, can not test to the flow velocity of medical catheter, therefore, be badly in need of the defect that a kind of technical scheme solves prior art existence.
Summary of the invention
For the deficiencies in the prior art part, the invention provides a kind of structure simple, operation easily can the medical catheter flow meters of inspection center's ductus venosus flow velocity.
The technical solution adopted in the present invention is as follows:
Medical catheter flow meters, comprise cabinet 3, closed cycle constant temperature water bath apparatus 1, operating platform and regulation and control system, described closed cycle constant temperature water bath apparatus comprises upper water box 103 and lower header 101, the water inlet pipe mouth of upper water box 103 is connected by upper hose 104 with the outlet of lower header 101, the water delivering orifice I of upper water box 103 is connected by downcomer 105 with lower header 101, upper water box 101 is also provided with the water delivering orifice II with solenoid valve 4, lower header 101 is provided with water inlet 106, the upper hose place of lower header 101 is provided with water pump 102, it is inner that described closed cycle constant temperature water bath apparatus 1 is arranged on cabinet 3,
Described operating platform is provided with specimen mounting 6 and water spilage tray 8, specimen mounting 6 is fixed with medical catheter 604, medical catheter 604 is connected with the downcomer 105 of upper water box 103 by flow rate regulating valve 5, water spilage tray 8 is positioned at immediately below the faucet of medical catheter 604, is fixed with mass sensor 7 in the below of water spilage tray 8; Water spilage tray 8 is movably connected on mass sensor 7, and operating platform is positioned at cabinet 3 bottom;
Described regulation and control system comprises control panel 2 and computing machine, and regulation and control system is connected with closed cycle constant temperature water bath apparatus 1 and mass sensor 7 respectively; Control panel 2 is arranged on the cabinet 3 above operating platform, and computer bit is outside in cabinet 3.
Further, sidewall in described lower header 101 is provided with temperature sensor and level sensor, lower header inside is provided with well heater and refrigerator, described well heater adopts heating tube, refrigerator adopts model to be the refrigerator of AT10, and the water inlet of lower header 101 is arranged on the right side of mass sensor 7.
Further, described control panel 2 comprises temperature controller 201, water monitor 202 and power switch 203, the input end of temperature controller 201 connects temperature sensor, the output terminal of temperature controller 201 is parallel with well heater and refrigerator, temperature controller 201 is according to the feedback of temperature sensor, startup well heater heats or starts refrigerator to the water in lower header and cools the water in lower header, remain on (22 ± 2) DEG C with the test solution of warranty test, the input end of water monitor 202 connects level sensor, the output terminal of water monitor 202 is connected with water pump 102, water monitor 202 controls water pump 102 and makes the test solution in upper water box keep permanent liquid level.
Further, described built-in computer test operation system, comprise beginning key, end key, timing hummer, effective options button, recording section, mean value calculation and report generation part, start the opening and closing of key and end key Controlling solenoid valve 4, also control end and the beginning of whole experiment process simultaneously, timing hummer is connected the Control experiment time in the line, recording section is by the data that recording quality sensor 7 transmits that judge whether by effective options button, effective data result will calculate mean value by mean value calculation part, then effectively report is generated by report generation part, the carrying out that the test operation system effective Control experiment flow process of built-in computer is accurately orderly.
Further, described water monitor 202 is provided with water position status pilot lamp.
Further, described specimen mounting 6 comprises DOCK LEVELER 601, block rubber 602 and joint 603, described DOCK LEVELER 601 is provided with adjustment hole, and block rubber 602 is bolted on DOCK LEVELER 601, and described joint 603 is fixed on block rubber 602 front.
Further, the upper right of described cabinet 3 has liquid level gauge 107, and liquid level gauge 107 is communicated with upper water box 103 by conduit, and liquid level gauge 107 is also connected with water monitor 202.
The invention has the beneficial effects as follows:
Detection for medical catheter flow velocity provides equipment support, adopts and computerizeds control, and improves the accuracy of medical catheter flow rate detection, can make Data Detection for medical catheter flow velocity performance index, for the overall performance of medical catheter provides foundation.In addition, structure of the present invention is simple, and cost is low, security of operation, has good practicality and promotional value.
Accompanying drawing explanation
Fig. 1 one-piece construction schematic diagram of the present invention.
Fig. 2 is closed cycle water bath with thermostatic control structural representation.
Fig. 3 control panel structural representation of the present invention.
Fig. 4 specimen mounting structural representation of the present invention.
Fig. 5 is test operation system flowchart in computing machine.
In figure: closed cycle constant temperature water bath apparatus 1, control panel 2, cabinet 3, solenoid valve 4, flow rate regulating valve 5, specimen mounting 6, mass sensor 7, water spilage tray 8, lower header 101, water pump 102, upper water box 103, water inlet pipe 104, rising pipe 105, water inlet 106, liquid level gauge 107, temperature controller 201, water monitor 202, power switch 203, DOCK LEVELER 601, block rubber 602, joint 603, medical catheter 604.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Fig. 1-5.
Embodiment 1
During test, the flowing time of water in medical catheter 604 is allowed to be no less than 30 seconds, mass sensor 7 is adopted to weigh the weight flowing to the water in water spilage tray 8 within this time, computing machine at the trial in the data of reading quality sensor, the volume (V=m/ ρ) of water is converted to according to the density of water, obtain the transcatheter flow velocity of current, represent with mL/min.
Concrete test procedure is as follows:
1. normal temperature controls: by the water inlet of lower header, 5.5L water is added in lower header, open and be positioned at control panel power source switch, continue to add water to water position status pilot lamp bright light, stopping adds water, by the feedback of temperature sensor, temperature controller 201 regulates well heater and refrigerator, and the water temperature in lower header is shown as (22 ± 2) DEG C;
2. water lev el control: open the water pump in lower header 101, add water in upper water box, water monitor is opened by the feedback of liquid level gauge 107 or is switched off the pump, and makes the level being constant of upper water box;
3. air-discharging: water spilage tray 8 is placed on the mass sensor 7 immediately below water export, as shown in Figure 5, click " beginning " of Computer Testing System display interface, water flows out along medical catheter, moistening medical pipeline, then click Computer Testing System display interface " end ", switch electromagnetic valve several times repeatedly, discharge line air;
4. changing dry clean water spilage tray 8 is placed on mass sensor 7, clicks " peeling " button on mass sensor;
5. " beginning " of clicking Computer Testing System display interface starts test, preset the hummer time is 30 seconds simultaneously, when interface display to be tested goes out the real-time quality transmitted from mass sensor 7, click " end " at Computer display interface, stop test;
6. Computer Testing System display interface ejects " whether effectively testing? " whether interpretation test findings is effective, if effectively click " YSE ", if invalid clicks " NO "; After point " YES ", test result can show in the display box of Computer Testing System display interface, and " NO " then can not record this time test;
7. repeat above step, after three tests, computer system calculates mean value automatically; Click " generating report ", Software Create test report, display test findings.
Other are with embodiment 1.
Above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (7)
1. medical catheter flow meters, comprises cabinet (3), closed cycle constant temperature water bath apparatus (1), operating platform and regulation and control system, it is characterized in that:
Described closed cycle constant temperature water bath apparatus comprises upper water box (103) and lower header (101), the water inlet pipe mouth of upper water box (103) is connected by upper hose (104) with the outlet of lower header (101), the water delivering orifice I of upper water box (103) is connected by downcomer (105) with lower header (101), upper water box (101) is also provided with the water delivering orifice II with solenoid valve (4), lower header (101) is provided with water inlet (106), the upper hose place of lower header (101) is provided with water pump (102), it is inner that described closed cycle constant temperature water bath apparatus (1) is arranged on cabinet (3),
Described operating platform is provided with specimen mounting (6) and water spilage tray (8), specimen mounting (6) is fixed with medical catheter (604), medical catheter (604) is connected with the downcomer (105) of upper water box (103) by flow rate regulating valve (5), water spilage tray (8) is positioned at immediately below the faucet of medical catheter (604), is fixed with mass sensor (7) in the below of water spilage tray (8); Water spilage tray (8) is movably connected on mass sensor (7), and operating platform is positioned at cabinet (3) bottom;
Described regulation and control system comprises control panel (2) and computing machine, and regulation and control system is connected with closed cycle constant temperature water bath apparatus (1) and mass sensor (7) respectively; Control panel (2) is arranged on the cabinet (3) above operating platform, and computer bit is outside in cabinet (3).
2. medical catheter flow meters according to claim 1, it is characterized in that, sidewall in described lower header (101) is provided with temperature sensor and level sensor, also be provided with well heater and refrigerator in lower header (101) inside, the water inlet of lower header (101) is arranged on mass sensor (7) right side.
3. medical catheter flow meters according to claim 1, it is characterized in that, described control panel (2) comprises temperature controller (201), water monitor (202) and power switch (203); The input end of temperature controller (201) connects temperature sensor, the output terminal of temperature controller (201) is parallel with well heater and refrigerator, the input end of water monitor (202) connects level sensor, and the output terminal of water monitor (202) is connected with water pump (102).
4. medical catheter flow meters according to claim 1, is characterized in that, described built-in computer test operation system, Control experiment flow process.
5. medical catheter flow meters according to claim 1, it is characterized in that, described water monitor (202) is provided with water position status pilot lamp.
6. medical catheter flow meters according to claim 1, it is characterized in that, described specimen mounting (6) comprises DOCK LEVELER (601), block rubber (602) and joint (603), described DOCK LEVELER (601) is provided with adjustment hole, block rubber (602) is bolted on DOCK LEVELER (601), and described joint (603) is fixed on block rubber (602) front.
7. medical catheter flow meters according to claim 1, it is characterized in that, the upper right of described cabinet (3) has liquid level gauge (107), and liquid level gauge (107) is communicated with upper water box (103) by conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405837.9A CN104950130B (en) | 2015-07-10 | 2015-07-10 | Medical catheter flow meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405837.9A CN104950130B (en) | 2015-07-10 | 2015-07-10 | Medical catheter flow meters |
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| Publication Number | Publication Date |
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| CN104950130A true CN104950130A (en) | 2015-09-30 |
| CN104950130B CN104950130B (en) | 2017-10-17 |
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| CN201510405837.9A Active CN104950130B (en) | 2015-07-10 | 2015-07-10 | Medical catheter flow meters |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415224A (en) * | 2020-11-04 | 2021-02-26 | 温州康陀信息技术有限公司 | Infrared reflection type liquid dripping speed detector |
| CN115252963A (en) * | 2022-09-27 | 2022-11-01 | 山东百多安医疗器械股份有限公司 | Conduit fluid dynamic parameter detection equipment |
| CN115931321A (en) * | 2022-11-02 | 2023-04-07 | 上海玮启医疗器械有限公司 | Constant-pressure flow velocity testing device and method for medical catheter |
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| USH198H (en) * | 1985-04-30 | 1987-01-06 | The United States Of America As Represented By The Secretary Of The Army | Expanding projectile rotating band |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415224A (en) * | 2020-11-04 | 2021-02-26 | 温州康陀信息技术有限公司 | Infrared reflection type liquid dripping speed detector |
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| CN115931321A (en) * | 2022-11-02 | 2023-04-07 | 上海玮启医疗器械有限公司 | Constant-pressure flow velocity testing device and method for medical catheter |
| CN115931321B (en) * | 2022-11-02 | 2023-09-08 | 上海玮启医疗器械有限公司 | Constant pressure flow velocity testing device and method for medical catheter |
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| CN104950130B (en) | 2017-10-17 |
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