CN201350284Y - High pressure injector for monitoring injection pressure in real time - Google Patents
High pressure injector for monitoring injection pressure in real time Download PDFInfo
- Publication number
- CN201350284Y CN201350284Y CNU2009201290059U CN200920129005U CN201350284Y CN 201350284 Y CN201350284 Y CN 201350284Y CN U2009201290059 U CNU2009201290059 U CN U2009201290059U CN 200920129005 U CN200920129005 U CN 200920129005U CN 201350284 Y CN201350284 Y CN 201350284Y
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- pressure
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- function circuit
- pressure transducer
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Abstract
The utility model discloses a high pressure injector for monitoring injection pressure, which is creatively added with a rolling bearing; the rolling bearing comprises a moving coil and a static coil; the moving coil of the rolling bearing is integrated with a screw rod; and the static coil of the rolling bearing (11) is contacted with the bearing surface of a pressure sensor (8), thus guaranteeing that the cable of the pressure sensor does not change with the linear displacement movement of a push rod and avoiding the damage easily caused by the accompany movement of the cable under the condition that the pressure sensor is ensured to be fixed. The high pressure injector has the beneficial effect that the reliability of the real-time monitoring of the injection pressure of the high pressure injector is improved under the situation of guaranteeing the precision and response speed of pressure measurement.
Description
Technical field
This utility model relates to a kind of high pressure injector, relates in particular to a kind of high pressure injector of real-time monitoring injection pressure.
Background technology
High pressure injector be a kind of in patient's blood vessel the armarium of high speed injection contrast medium, be widely used in strengthening the radiography clinical practice.In order to guarantee to strengthen the smooth realization of radiography and patient's safety, need monitor in real time the pressure in the injection process.
Typical high pressure injector as shown in Figure 1.It is made up of motor 1, feed screw nut 2, screw mandrel 3, push rod 4, control and function circuit 7.Control and function circuit 7 control motors 1, driving screw mandrel 3 rotates, thereby the push rod that drives feed screw nut 2 and link to each other 4 is realized the straight-line displacement campaign, the final cylinder piston 5 that links to each other with push rod 4 snappings that drives is realized the straight-line displacement campaign, thereby realizes the injection of contrast agent syringe 6 interimage agent.
The high pressure injector that uses clinically adopts the real-time monitoring of two kinds of methods realizations to pressure at present:
First method is in control and function circuit 7 the motor testing circuit to be set, and is used for measuring power input to a machine, reflects the change of the load pressure that it drives by the variation of power input to machine.This method is owing to be to change by power reflect the pressure variation indirectly, exist response speed slowly, low precision, motor and drive circuit fault thereof will cause shortcomings such as measurement failure.
Second method has been installed the load pressure that pressure transducer 8 is measured piston 5 as shown in Figure 2 between cylinder piston 5 and push rod 4.The advantage of this method comparison first method is direct measurement, response speed is fast, precision is high.Its shortcoming is because push rod 4 can move to contrast agent syringe 6 inside, so need offer the cableway 10 of pressure transducer 8 thereon, causes inconvenience is installed.Follow the motion of push rod 4 simultaneously, make signal cable 9 pursuit movements of pressure transducer 8, cause cable fault easily and produce and measure failure.
The utility model content
In order to solve shortcoming inconvenient and that the pursuit movement of pressure transducer cable causes cable bad easily and causes measurement to fail is installed in the second method, the utility model proposes a kind of novel pressure sensor structure and mounting means, pressure transducer cable and the pressure transducer on the mounting base is fixed in utilization, overcome the measurement failure of inconvenience being installed and causing because of pressure transducer cable pursuit movement, reached the purpose of the injection pressure of real-time monitoring high pressure injector simultaneously.
This utility model is achieved in that
The utility model discloses a kind of high pressure injector of real-time monitoring injection pressure, creatively added a rolling bearing 11, rolling bearing comprises moving-coil and static circle, the moving-coil of rolling bearing 11 and screw mandrel 3 fuse, the static circle of rolling bearing 11 contacts with the load-carrying surface of pressure transducer 8, guaranteeing to have guaranteed that the pressure transducer cable does not change the damage of avoiding cable to cause easily because of pursuit movement with the straight-line displacement campaign of push rod under the fixed situation of pressure transducer like this.
The high pressure injector of monitoring injection pressure comprises motor 1, feed screw nut 2, screw mandrel 3, push rod 4, cylinder piston 5, contrast agent syringe 6, control and function circuit 7, pressure transducer 8, pressure transducer cable 9, rolling bearing 11 and mounting base 12 in real time.Feed screw nut 2 fuses with push rod 4, wherein motor 1, rolling bearing 11, pressure transducer 8 and pressure transducer cable 9 are fixedly mounted on the mounting base 12, screw mandrel 3 fuses with the moving-coil of rolling bearing 11, the static circle of rolling bearing 11 contacts with the load-carrying surface of pressure transducer 8, pressure transducer cable 9 one ends are connected with pressure transducer, and the other end is connected with function circuit 7 with control; Load pressure from cylinder piston 5,, by pressure transducer 8 pressure signal is transformed into the signal of telecommunication then and delivers in control and the function circuit 7 to feed screw nut 2, screw mandrel 3, rolling bearing 11, pressure transducer 8 by push rod 4 sequence delivery by pressure transducer cable 9; Control and function circuit 7 are made computing by the monitoring signal of telecommunication that pressure transducer 8 is sent here, rotating speed according to operation result active adjustment motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, the monitoring signal of telecommunication that control and 7 pairs of pressure transducers 8 of function circuit are sent here is made computing, control the rotating speed of motor 1 according to the magnitude of voltage of operation result active adjustment motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, the monitoring signal of telecommunication that control and 7 pairs of pressure transducers 8 of function circuit are sent here is made computing, control the rotating speed of motor 1 according to the current value of operation result active adjustment motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, the monitoring signal of telecommunication that control and 7 pairs of pressure transducers 8 of function circuit are sent here is made computing, control the rotating speed of motor 1 according to the performance number of operation result active adjustment control motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, the rotating speed of motor 1 comprises high gear, middling speed gear, low gear, two kinds or two or more gears in gear, the speed change gear at the uniform velocity, the monitoring signal of telecommunication that control and 7 pairs of pressure transducers 8 of function circuit are sent here is made computing, control the rotating speed of motor 1 according to the gear of operation result active adjustment motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, pressure transducer 8 is formed Huygens's electric bridge by 4 sheet resistance formula pressure-strain sheets.
The beneficial effects of the utility model are:
1. convenience: can realize the installation of pressure transducer easily.
2. reliability: under the situation of precision that has guaranteed to measure and response speed, improved the reliability that high pressure injector is monitored injection pressure in real time.
3. wisdom: can judge force value intelligently according to the variation of pressure, monitor the variation of injection pressure in real time, regulate injection pressure automatically.
4. industrialization: only creatively added a rolling bearing, simple in structure, realize easily, can implement large-scale commercial application easily.
Description of drawings
Accompanying drawing 1 is a typical high pressure injector generalized section in the prior art
Accompanying drawing 2 is for having the high pressure injector generalized section of cableway in the prior art
Accompanying drawing 3 is a high pressure injector generalized section of the present utility model
The specific embodiment
As shown in Figure 3, monitor the high pressure injector of injection pressure in real time, comprise motor 1, feed screw nut 2, screw mandrel 3, push rod 4, cylinder piston 5, contrast agent syringe 6, control and function circuit 7, pressure transducer 8, pressure transducer cable 9, rolling bearing 11 and mounting base 12.Feed screw nut 2 fuses with push rod 4, wherein motor 1, rolling bearing 11, pressure transducer 8 and pressure transducer cable 9 are fixedly mounted on the mounting base 12, screw mandrel 3 fuses with the moving-coil of rolling bearing 11, the static circle of rolling bearing 11 contacts with the load-carrying surface of pressure transducer 8, pressure transducer cable 9 one ends are connected with pressure transducer, and the other end is connected with function circuit 7 with control; Load pressure from cylinder piston 5,, by pressure transducer 8 pressure signal is transformed into the signal of telecommunication then and delivers in control and the function circuit 7 to feed screw nut 2, screw mandrel 3, rolling bearing 11, pressure transducer 8 by push rod 4 sequence delivery by pressure transducer cable 9; Control and function circuit 7 are made computing by the monitoring signal of telecommunication that pressure transducer 8 is sent here, rotating speed according to operation result active adjustment motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, the monitoring signal of telecommunication that control and 7 pairs of pressure transducers 8 of function circuit are sent here is made computing, control the rotating speed of motor 1 according to magnitude of voltage, current value or the performance number of operation result active adjustment motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, the rotating speed of motor 1 comprises high gear, middling speed gear, low gear, two kinds or two or more gears in gear, the speed change gear at the uniform velocity, the monitoring signal of telecommunication that control and 7 pairs of pressure transducers 8 of function circuit are sent here is made computing, control the rotating speed of motor 1 according to the gear of operation result active adjustment motor 1, thereby regulate the injection pressure of syringe, control and function circuit 7 detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
Monitor the high pressure injector of injection pressure in real time, pressure transducer 8 is formed Huygens's electric bridge by 4 sheet resistance formula pressure-strain sheets.
This utility model is not limited to above-mentioned embodiment.So long as utilize the physical deformation of above-mentioned embodiment or the simple transformation of structure, the purpose with the injection pressure that reaches real-time monitoring high pressure injector all belongs to this and is suitable for a novel protection domain.
Claims (6)
1. real-time high pressure injector of monitoring injection pressure, comprise motor (1), feed screw nut (2), screw mandrel (3), push rod (4), cylinder piston (5), contrast agent syringe (6), control and function circuit (7), pressure transducer (8), pressure transducer cable (9), feed screw nut (2) fuses with push rod (4); It is characterized in that,
Also comprise rolling bearing (11) and mounting base (12), wherein motor (1), rolling bearing (11), pressure transducer (8) and pressure transducer cable (9) are fixedly mounted on the mounting base (12), screw mandrel (3) fuses with the moving-coil of rolling bearing (11), the static circle of rolling bearing (11) contacts with the load-carrying surface of pressure transducer (8), pressure transducer cable (9) one ends are connected with pressure transducer, and the other end is connected with function circuit (7) with control;
Load pressure from cylinder piston (5),, by pressure transducer (8) pressure signal is transformed into the signal of telecommunication then and delivers in control and the function circuit (7) to feed screw nut (2), screw mandrel (3), rolling bearing (11), pressure transducer (8) by push rod (4) sequence delivery by pressure transducer cable (9); Control and function circuit (7) are made computing by the monitoring signal of telecommunication that pressure transducer (8) is sent here, rotating speed according to operation result active adjustment motor (1), thereby regulate the injection pressure of syringe, control and function circuit (7) detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
2. the high pressure injector of real-time monitoring injection pressure as claimed in claim 1, it is characterized in that, the monitoring signal of telecommunication that control and function circuit (7) are sent here pressure transducer (8) is made computing, control the rotating speed of motor (1) according to the magnitude of voltage of operation result active adjustment motor (1), thereby regulate the injection pressure of syringe, control and function circuit (7) detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
3. the high pressure injector of real-time monitoring injection pressure as claimed in claim 1, it is characterized in that, the monitoring signal of telecommunication that control and function circuit (7) are sent here pressure transducer (8) is made computing, control the rotating speed of motor (1) according to the current value of operation result active adjustment motor (1), thereby regulate the injection pressure of syringe, control and function circuit (7) detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
4. the high pressure injector of real-time monitoring injection pressure as claimed in claim 1, it is characterized in that, the monitoring signal of telecommunication that control and function circuit (7) are sent here pressure transducer (8) is made computing, control the rotating speed of motor (1) according to the performance number of operation result active adjustment control motor (1), thereby regulate the injection pressure of syringe, control and function circuit (7) detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
5. the high pressure injector of real-time monitoring injection pressure as claimed in claim 1, it is characterized in that, the rotating speed of motor (1) comprises high gear, the middling speed gear, low gear, gear at the uniform velocity, two kinds or two or more gears in the speed change gear, the monitoring signal of telecommunication that control and function circuit (7) are sent here pressure transducer (8) is made computing, according to the gear of operation result active adjustment motor (1) control motor (1) thus the rotating speed injection pressure of regulating syringe, control and function circuit (7) detect pressure signal and have surpassed limit value, then stop motor and send sound and light alarm.
6. as the high pressure injector of each described real-time monitoring injection pressure of claim 1 to 5, it is characterized in that pressure transducer (8) forms Huygens's electric bridge by 4 sheet resistance formula pressure-strain sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201290059U CN201350284Y (en) | 2009-01-05 | 2009-01-05 | High pressure injector for monitoring injection pressure in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201290059U CN201350284Y (en) | 2009-01-05 | 2009-01-05 | High pressure injector for monitoring injection pressure in real time |
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| CN201350284Y true CN201350284Y (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009201290059U Expired - Lifetime CN201350284Y (en) | 2009-01-05 | 2009-01-05 | High pressure injector for monitoring injection pressure in real time |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266601A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Injector and injection pump pressure detection mechanism |
| CN103182113A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Injection pump |
| CN103203070A (en) * | 2012-01-16 | 2013-07-17 | 住友重机械工业株式会社 | Radioactive liquid delivery device and method of detecting bad states thereof |
| TWI410320B (en) * | 2010-05-17 | 2013-10-01 | ||
| CN104856745A (en) * | 2014-06-24 | 2015-08-26 | 南通市第三人民医院 | Safe and automatic puncture outfit for endoscopic surgery |
| CN104922770A (en) * | 2015-06-20 | 2015-09-23 | 南京感控通化工产品经营部 | Direct-inserting type high-pressure injector needle cylinder mounting device and method |
| TWI569833B (en) * | 2014-08-19 | 2017-02-11 | 卡貝歐洲有限公司 | A medicament delivery device, a medicament delivery system, and a method therefore |
| CN107991038A (en) * | 2017-12-30 | 2018-05-04 | 四川省广元市康康医疗器械有限公司 | A kind of high pressure injector limit test instrument and high pressure injector limit test method |
| CN108837212A (en) * | 2018-07-11 | 2018-11-20 | 张斌 | A kind of dedicated angiocardiography of Cardiological, which pushes away, helps device device |
| CN109420220A (en) * | 2017-08-24 | 2019-03-05 | 南京感控通化工产品经营部 | A kind of high pressure injector self adaptation stream speed control method |
| CN109432551A (en) * | 2018-09-25 | 2019-03-08 | 中国船舶重工集团公司第七六研究所 | Oral anesthestia boost device injection speed control method and system based on dynamic pressure detection |
| CN112353352A (en) * | 2020-10-09 | 2021-02-12 | 上海交通大学 | Endoscope perfusion system for monitoring intrarenal pressure in non-contact manner |
| CN113855916A (en) * | 2021-09-28 | 2021-12-31 | 深圳圣诺医疗设备股份有限公司 | Residual medicine amount detection system and method for injection pump |
-
2009
- 2009-01-05 CN CNU2009201290059U patent/CN201350284Y/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI410320B (en) * | 2010-05-17 | 2013-10-01 | ||
| CN102266601B (en) * | 2010-12-31 | 2013-10-23 | 北京谊安医疗系统股份有限公司 | Injector and injection pump pressure detection mechanism |
| CN102266601A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Injector and injection pump pressure detection mechanism |
| CN103182113B (en) * | 2011-12-30 | 2016-04-20 | 北京谊安医疗系统股份有限公司 | Syringe pump |
| CN103182113A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Injection pump |
| CN103203070A (en) * | 2012-01-16 | 2013-07-17 | 住友重机械工业株式会社 | Radioactive liquid delivery device and method of detecting bad states thereof |
| CN104856745A (en) * | 2014-06-24 | 2015-08-26 | 南通市第三人民医院 | Safe and automatic puncture outfit for endoscopic surgery |
| TWI569833B (en) * | 2014-08-19 | 2017-02-11 | 卡貝歐洲有限公司 | A medicament delivery device, a medicament delivery system, and a method therefore |
| CN104922770A (en) * | 2015-06-20 | 2015-09-23 | 南京感控通化工产品经营部 | Direct-inserting type high-pressure injector needle cylinder mounting device and method |
| CN109420220A (en) * | 2017-08-24 | 2019-03-05 | 南京感控通化工产品经营部 | A kind of high pressure injector self adaptation stream speed control method |
| CN109420220B (en) * | 2017-08-24 | 2024-02-20 | 南京巨鲨显示科技有限公司 | Self-adaptive flow rate control method for high-pressure injector |
| CN107991038A (en) * | 2017-12-30 | 2018-05-04 | 四川省广元市康康医疗器械有限公司 | A kind of high pressure injector limit test instrument and high pressure injector limit test method |
| CN107991038B (en) * | 2017-12-30 | 2023-11-10 | 四川省广元市康康医疗器械有限公司 | High-pressure injector limit tester and high-pressure injector limit testing method |
| CN108837212A (en) * | 2018-07-11 | 2018-11-20 | 张斌 | A kind of dedicated angiocardiography of Cardiological, which pushes away, helps device device |
| CN109432551A (en) * | 2018-09-25 | 2019-03-08 | 中国船舶重工集团公司第七六研究所 | Oral anesthestia boost device injection speed control method and system based on dynamic pressure detection |
| CN109432551B (en) * | 2018-09-25 | 2021-04-27 | 中国船舶重工集团公司第七一六研究所 | Injection speed control method and system of oral anesthesia booster based on dynamic pressure detection |
| CN112353352A (en) * | 2020-10-09 | 2021-02-12 | 上海交通大学 | Endoscope perfusion system for monitoring intrarenal pressure in non-contact manner |
| CN113855916A (en) * | 2021-09-28 | 2021-12-31 | 深圳圣诺医疗设备股份有限公司 | Residual medicine amount detection system and method for injection pump |
| CN113855916B (en) * | 2021-09-28 | 2023-12-29 | 深圳圣诺医疗设备股份有限公司 | System and method for detecting residual drug quantity of injection pump |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Shenzhen Nanshan District City, Ma Liuzhou Industrial Zone 15 building 6 floor Patentee after: Shenzhen Sino Medical-device Technology Co., Ltd. Address before: 1, Shenzhen, Guangdong, Nanshan District Province North City Road High East Science and Technology Park, No. 518053 factory building (Hua Ke) 2-D-2 Patentee before: Shenzhen Sino Medical-device Technology Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili Sunshine Community Songbai Road No. 1008, building 6 floor 15 artview Patentee after: Shenzhen Sino Medical-device Technology Co., Ltd. Address before: Nanshan District Ma Liuzhou Industrial Zone of Shenzhen City, Guangdong province 518000 15 6 floor Patentee before: Shenzhen Sino Medical-device Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Min Document name: Notification of Passing Examination on Formalities |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili Sunshine Community Songbai Road No. 1008, building 6 floor 15 artview Patentee after: SINO MEDICAL-DEVICE TECHNOLOGY CO., LTD. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili Sunshine Community Songbai Road No. 1008, building 6 floor 15 artview Patentee before: Shenzhen Sino Medical-device Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |