CN104146700B - A kind of pipeline and control method thereof with the detection of pneumatic type isolated pressure and valve - Google Patents
A kind of pipeline and control method thereof with the detection of pneumatic type isolated pressure and valve Download PDFInfo
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- CN104146700B CN104146700B CN201410425271.1A CN201410425271A CN104146700B CN 104146700 B CN104146700 B CN 104146700B CN 201410425271 A CN201410425271 A CN 201410425271A CN 104146700 B CN104146700 B CN 104146700B
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Abstract
The invention discloses a kind of pipeline and the control method thereof with the detection of pneumatic type isolated pressure and valve, first port of supervisor can be socketed liquid inlet, the embedded tubular elastomeric air bag of second port of supervisor, second port connects the first pipeline, second pipe, the 3rd pipeline respectively, and the first pipeline, second pipe, the 3rd pipeline connect air pump, vent valve and pressure transducer respectively; Be responsible for and having the 3rd port apart from second port a distance, the 3rd port connects a discharge conduit, and discharge conduit is equipped with flow transducer; Supervisor is placed in inverted trapezoidal groove narrow in bottom width, and inverted trapezoidal groove places two pairs of alignment sensors.Transmit the pressure of fluid to be measured by air bag and control the excretion of fluid, achieve non-cpntact measurement and the control of liquid, both sensor can have been avoided directly to contact with liquid, high-precision measurement can be realized again, the discharge of liquid can also be controlled and measure speed and the flow of discharge, can also very low cost be accomplished simultaneously.
Description
Technical field
The present invention relates to measurement and the Valve controlling field of low pressure liquid, particularly relate to a kind of pipeline and the control method thereof with the detection of pneumatic type isolated pressure and valve.
Background technology
The pressure measuring liquid is needed also to control corresponding valve according to the size of pressure and measure the flow velocity of liquid in many occasions.Such as: to patient and the postoperative needs of patients insertion catheter of high paraplegia, need open catheter to urinate when intravesical pressure reaches certain value, also need the speed controlling to urinate simultaneously, cause the misery of patient even dangerous to avoid urinating too fast.At present, patient all has nursing staff's manual operation after laying catheter, not only increases labor intensity, cannot measure intravesical pressure.
Many engineers and technicians are had to try hard to solve this problem in prior art.A kind of bladder pressure probe designed as there being Wang Jianhuo at home
[1], for measuring intravesical pressure, but need air bag to send into intravesical, and function singleness and can not control to urinate; The Small-size bladder disease monitor of the design such as Han Jiurong
[2], be only limitted to circuit design, there is no the design of measuring particularity for intravesical pressure; A kind of automatic urethral catheterization system of the design such as Wang Qiong
[3]two conduits that employing is connected with Y-pipe are respectively arranged with pressure sensor unit and electronics draining valve, the tonometric dilemma of this system does not solve first: easily realize high-acruracy survey with urine contact but can not avoid the problem polluted, and non-cpntact measurement is then difficult to ensure high accuracy; Second then cost is too high to adopt electronics draining valve also to there will be single use, reuses, and is difficult to sterilization and easily produces pollution problem; Disposable survey body temperature, the abdominal pressure catheter of Ge Hu design
[4]as the term suggests, what wherein use is not only temperature sensor, and pressure transducer also must single use, and its cost is also very high; The one urine stream monitor controller of the design such as Ruan Xuehong and supporting pipeline thereof
[4]monitoring obtains the pressure parameter of pressure perception window pressure impression point and obtains bladder pressure, and so-called pressure perception window to be in catheter one section flexible, its advantage avoids pressure transducer and urine contact, but its shortcoming is also apparent, pressure measurement accuracy, both by the elasticity effect of elastomeric bladder self, is also subject to the impact of the contact situation (contact area etc.) of elastomeric bladder and pressure transducer.
Summary of the invention
The invention provides a kind of pipeline and the control method thereof with the detection of pneumatic type isolated pressure and valve, the present invention both can avoid sensor directly to contact with by the liquid of observing and controlling, high-precision liquid pressure measurement can be realized again, the discharge of liquid can also be controlled, measure speed and the flow of discharge, can also very low cost be accomplished simultaneously, described below:
Have pneumatic type isolated pressure and detect the pipeline with valve, described pipeline comprises: supervisor,
First port of described supervisor can be socketed liquid inlet, the embedded tubular elastomeric air bag of second port of described supervisor, described second port connects the first pipeline, second pipe, the 3rd pipeline respectively, and described first pipeline, described second pipe, described 3rd pipeline connect air pump, vent valve and pressure transducer respectively;
Described supervisor is having the 3rd port apart from second port a distance, and described 3rd port connects a discharge conduit, and described discharge conduit is equipped with flow transducer;
Described supervisor is placed in inverted trapezoidal groove narrow in bottom width, and described inverted trapezoidal groove places two pairs of alignment sensors.
Described supervisor is made up of translucent or transparent material.
The caliber of described supervisor is 4 ~ 10mm, is about 100 ~ 200mm.
Described air bag is about 30 ~ 80mm.
Described supervisor is having described 3rd port apart from described second port one 0 ~ 20mm place, and it is 1 ~ 3mm discharge conduit that described 3rd port connects a caliber.
On 10 ~ 30mm, place two pairs of alignment sensors at described inverted trapezoidal groove, described second port is 30 ~ 40mm from nearest alignment sensor.
Described flow transducer adopts ultrasonic flow transducer.
Described first pair of alignment sensor and described second pair of alignment sensor adopt photoelectric tube.
Described first pair of alignment sensor and described second pair of alignment sensor adopt capacitance sensor.
There is pneumatic type isolated pressure and detect the control method with the pipeline of valve, said method comprising the steps of:
(1) vent valve cuts out, booster air pump, and air bag expands until first pair of alignment sensor and second pair of alignment sensor perceive described air bag in supervisor;
(2) pressure of detected fluid is delivered to pressure transducer through described air bag, when described pressure transducer detected pressures exceedes preset pressure value, open described vent valve, when described air bag is retracted to below the interface of discharge conduit and supervisor, liquid is discharged through described discharge conduit;
(3) flow transducer is measured the flow rate of liquid in described discharge conduit and flow, and the flow velocity to fluid drainage controls to make flow rate of liquid in preset flow rate level by described vent valve and described air pump;
(4) clean or when reaching preset pressure level in fluid discharge, again start described air pump, make described air bag top exceed described second pair of alignment sensor, and when reaching the position of described first pair of alignment sensor, namely close liquid outlet.
The beneficial effect of technical scheme provided by the invention is: the present invention adopts the pipeline of internal airbag, transmit the pressure of fluid to be measured by air bag and control the excretion of fluid, achieve non-cpntact measurement and the control of liquid, both sensor can have been avoided directly to contact with liquid, high-precision measurement can be realized again, the discharge of liquid can also be controlled, and measure speed and the flow of discharge, can also very low cost be accomplished simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the pipeline of the detection of pneumatic type isolated pressure and valve;
Fig. 2 is the piping schematic connecting the air pump of supervisor second port B mouth, vent valve and pressure transducer;
Fig. 3 places the inverted trapezoidal groove of supervisor, the schematic diagram of 2 pairs of alignment sensors;
Fig. 4 is the schematic diagram in supervisor after airbag inflation;
Fig. 5 is a kind of flow chart with the control method of the pipeline of the detection of pneumatic type isolated pressure and valve.
In accompanying drawing, the list of parts representated by each label is as follows:
1: supervisor; 2: air bag;
3: air pump; 4: vent valve;
5: pressure transducer; 6: discharge conduit;
7: flow transducer; 8: inverted trapezoidal groove;
9: the first pairs of alignment sensors; 10: the second pairs of alignment sensors;
A: the first port; B: the second port;
C: the three port; D: the first pipeline;
E: second pipe; F: the three pipeline.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below embodiment of the present invention is described further in detail.
Embodiment 1
A kind of pipeline with the detection of pneumatic type isolated pressure and valve, see Fig. 1 and Fig. 2, pipeline comprises: supervisor 1, whole supervisor 1 is made up of latex, the caliber of supervisor 1 is 4mm, the pipeline of supervisor 1 is about 100mm, first port (i.e. A mouth) of supervisor 1 can be socketed conventional liquid inlet (this liquid inlet has enough sealing intensities), the embedded tubular elastomeric air bag 2 of second port (i.e. B mouth) of supervisor 1, air bag 2 is about 30mm, second port (B mouth) connects the first pipeline D respectively, second pipe E, 3rd pipeline F, first pipeline D, second pipe E, 3rd pipeline F connects air pump 3 respectively, vent valve 4 and pressure transducer 5, supervisor 1, having the 3rd port (i.e. C mouth) apart from the second port (B mouth) 10mm place and connect the discharge conduit 6 that a caliber is 1mm, discharge conduit 6 is equipped with flow transducer 7.Flow transducer 7 adopts ultrasonic flow transducer.
See Fig. 3, supervisor 1 is placed in inverted trapezoidal groove 8 narrow in bottom width, at inverted trapezoidal groove 8 at a distance of 10mm place placement two pairs of alignment sensors (being respectively first pair of alignment sensor 9 and second pair of alignment sensor 10), the second port (B mouth) has 30mm from nearest alignment sensor 9 or 10.First pair of alignment sensor 9 and second pair of alignment sensor 10 adopt photoelectric tube.See Fig. 4, give the schematic diagram after air bag 2 expansion in supervisor 1.
Embodiment 2
A kind of pipeline with the detection of pneumatic type isolated pressure and valve, see Fig. 1 and Fig. 2, pipeline comprises: supervisor 1, whole supervisor 1 is made up of silica gel, the caliber of supervisor 1 is 8mm, the pipeline of supervisor 1 is about 150mm, first port (i.e. A mouth) of supervisor 1 can be socketed conventional liquid inlet (this liquid inlet has and has enough sealing intensities), the embedded tubular elastomeric air bag 2 of second port (i.e. B mouth) of supervisor 1, air bag 2 is about 60mm, second port (B mouth) connects the first pipeline D respectively, second pipe E, 3rd pipeline F, first pipeline D, second pipe E, 3rd pipeline F connects air pump 3 respectively, vent valve 4 and pressure transducer 5, supervisor 1, having the 3rd port (i.e. C mouth) apart from the second port (B mouth) 15mm place and connect the discharge conduit 6 that a caliber is 2mm, discharge conduit 6 is equipped with flow transducer 7.Flow transducer 7 adopts ultrasonic flow transducer.
See Fig. 3, supervisor 1 is placed in inverted trapezoidal groove 8 narrow in bottom width, at inverted trapezoidal groove 8 at a distance of 20mm place placement two pairs of alignment sensors (being respectively first pair of alignment sensor 9 and second pair of alignment sensor 10), the second port (B mouth) has 35mm from nearest alignment sensor 9 or 10.First pair of alignment sensor 9 and second pair of alignment sensor 10 adopt capacitance sensor.See Fig. 4, give the schematic diagram after air bag 2 expansion in supervisor 1.
Embodiment 3
A kind of pipeline with the detection of pneumatic type isolated pressure and valve, see Fig. 1 and Fig. 2, pipeline comprises: supervisor 1, whole supervisor 1 is made up of silica gel, the caliber of supervisor 1 is 10mm, the pipeline of supervisor 1 is about 200mm, first port (i.e. A mouth) of supervisor 1 can be socketed conventional liquid inlet (this liquid inlet has and has enough sealing intensities), the embedded tubular elastomeric air bag 2 of second port (i.e. B mouth) of supervisor 1, air bag 2 is about 80mm, second port (B mouth) connects the first pipeline D respectively, second pipe E, 3rd pipeline F, first pipeline D, second pipe E, 3rd pipeline F connects air pump 3 respectively, vent valve 4 and pressure transducer 5, supervisor 1, having the 3rd port (i.e. C mouth) apart from the second port (B mouth) 20mm place and connect the discharge conduit 6 that a caliber is 3mm, discharge conduit 6 is equipped with flow transducer 7.Flow transducer 7 adopts ultrasonic flow transducer.
See Fig. 3, supervisor 1 is placed in inverted trapezoidal groove 8 narrow in bottom width, at inverted trapezoidal groove 8 at a distance of 30mm place placement two pairs of alignment sensors (being respectively first pair of alignment sensor 9 and second pair of alignment sensor 10), the second port (B mouth) has 40mm from nearest a pair alignment sensor 9 or 10.First pair of alignment sensor 9 and second pair of alignment sensor 10 adopt capacitance sensor.See Fig. 4, give the schematic diagram after air bag 2 expansion in supervisor 1.
Embodiment 4
Pipeline in this embodiment, basic structure and embodiment 1,2 identical with 3, difference is: the material of supervisor 1 can also be selected from other the translucent or transparent materials except latex, silica gel.The caliber of supervisor 1, the duct length of supervisor 1, the length of air bag 2, position relationship between second port (B mouth) and the 3rd port (C mouth), the caliber of the 3rd port, relative distance between first pair of alignment sensor 9 and second pair of alignment sensor 10, and first pair of alignment sensor 9, position relationship between second and second port (B mouth), all can set according to the needs in practical application, flow transducer 7, first pair of alignment sensor 9 and the second pair of alignment sensor 10 also can be selected from the sensor of other types according to needing in practical application, during specific implementation, the embodiment of the present invention does not limit this.
Embodiment 5
Pipeline in this embodiment, basic structure and embodiment 1,2,3 identical with 4, difference is: the liquid inlet in this embodiment can be specially: catheter, and this has pneumatic type isolated pressure and detects and can serve for the patient of high paraplegia and Post operation need to insert the crowd that urinary catheter carries out urinating with pipeline of valve.Add convenience and operability.During specific implementation, this catheter can also be rubber tube etc., and the embodiment of the present invention does not limit this.
See Fig. 5, a kind of control method with the pipeline of the detection of pneumatic type isolated pressure and valve, this control method is applicable to the pipeline in embodiment 1,2,3 and 4, and described control method comprises the following steps:
101: vent valve 4 cuts out, booster air pump 3, makes air bag 2 expand in supervisor 1 until first pair of alignment sensor 9 and second pair of alignment sensor 10 can perceive air bag 2, now can guarantee that air bag 2 covers discharge conduit 6, is equivalent to closing liquid outlet;
102: the pressure of detected fluid is delivered to pressure transducer 5 through air bag 2, when pressure transducer 5 detected pressures exceedes preset pressure value, open vent valve 4, air bag 2 reduces because of air pressure and shrinks under the pressure effect of liquid, when air bag 2 is retracted to below the interface of discharge conduit 6 and supervisor 1, liquid can be passed through discharge conduit 6 and discharges;
103: the flow rate of liquid in flow transducer 7 pairs of discharge conduits 6 and flow are measured, and control to make flow rate of liquid in preset flow rate level by the flow velocity of vent valve 4 and air pump 3 pairs of fluid drainage;
104: fluid discharge is clean or when reaching preset pressure level, booster air pump 3 again, makes air bag 2 top more than second pair of alignment sensor 10, and when reaching the position of first pair of alignment sensor 9, namely close liquid outlet; Start new one to take turns fluid pressure and detect.
Wherein, the closing liquid outlet in step 104, identical with the principle in step 101, do not repeat at this.
Separately, the preset flow rate level in step 103, and the concrete value of preset pressure level in step 104 sets according to the needs in practical application, the embodiment of the present invention does not limit this.
The embodiment of the present invention is to the model of each device except doing specified otherwise, and the model of other devices does not limit, as long as can complete the device of above-mentioned functions.
List of references:
[1] bladder pressure probe, publication No.: CN102144921A, date of publication: 2011.08.10;
[2] Small-size bladder disease monitor, publication No.: CN102871655A, date of publication: 2013.01.16;
[3] an automatic urethral catheterization system, publication No.: CN103908706A, date of publication: 2014.07.09;
[4] disposable survey body temperature, abdominal pressure catheter, publication No.: CN103877668A, date of publication: 2014.06.25;
[5] a kind of urine stream monitor controller and supporting pipeline thereof, publication No.: CN103598943A, date of publication: 2014.02.26.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. have pneumatic type isolated pressure and detect the pipeline with valve, described pipeline comprises: supervisor, is characterized in that,
First port of described supervisor can be socketed liquid inlet, the embedded tubular elastomeric air bag of second port of described supervisor, described second port connects the first pipeline, second pipe, the 3rd pipeline respectively, and described first pipeline, described second pipe, described 3rd pipeline connect air pump, vent valve and pressure transducer respectively;
Described supervisor is having the 3rd port apart from second port a distance, and described 3rd port connects a discharge conduit, and described discharge conduit is equipped with flow transducer;
Described supervisor is placed in inverted trapezoidal groove narrow in bottom width, and described inverted trapezoidal groove places two pairs of alignment sensors.
2. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, it is characterized in that, described supervisor is made up of translucent or transparent material.
3. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, it is characterized in that, the caliber of described supervisor is 4 ~ 10mm, long 100 ~ 200mm.
4. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, is characterized in that, the long 30 ~ 80mm of described air bag.
5. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, it is characterized in that, described supervisor is having described 3rd port apart from described second port one 0 ~ 20mm place, and it is 1 ~ 3mm discharge conduit that described 3rd port connects a caliber.
6. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, it is characterized in that, on 10 ~ 30mm, place two pairs of alignment sensors at described inverted trapezoidal groove, described second port is 30 ~ 40mm from nearest alignment sensor.
7. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, it is characterized in that, described flow transducer adopts ultrasonic flow transducer.
8. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, is characterized in that, first pair of alignment sensor and second pair of alignment sensor adopt photoelectric tube.
9. a kind of pipeline with the detection of pneumatic type isolated pressure and valve according to claim 1, is characterized in that, first pair of alignment sensor and second pair of alignment sensor adopt capacitance sensor.
10., for a kind of control method with the pipeline of the detection of pneumatic type isolated pressure and valve described in claim arbitrary in claim 1-9, it is characterized in that, said method comprising the steps of:
(1) vent valve cuts out, booster air pump, and air bag expands until first pair of alignment sensor and second pair of alignment sensor perceive described air bag in supervisor;
(2) pressure of detected fluid is delivered to pressure transducer through described air bag, when described pressure transducer detected pressures exceedes preset pressure value, open described vent valve, when described air bag is retracted to below the interface of discharge conduit and supervisor, liquid is discharged through described discharge conduit;
(3) flow transducer is measured the flow rate of liquid in described discharge conduit and flow, and the flow velocity to fluid drainage controls to make flow rate of liquid in preset flow rate level by described vent valve and described air pump;
(4) clean or when reaching preset pressure level in fluid discharge, again start described air pump, make described air bag top exceed described second pair of alignment sensor, and when reaching the position of described first pair of alignment sensor, namely close liquid outlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425271.1A CN104146700B (en) | 2014-08-26 | 2014-08-26 | A kind of pipeline and control method thereof with the detection of pneumatic type isolated pressure and valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410425271.1A CN104146700B (en) | 2014-08-26 | 2014-08-26 | A kind of pipeline and control method thereof with the detection of pneumatic type isolated pressure and valve |
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| CN104146700A CN104146700A (en) | 2014-11-19 |
| CN104146700B true CN104146700B (en) | 2016-04-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104757960B (en) * | 2015-01-14 | 2017-09-26 | 天津榕丰科技有限公司 | Multiple protector and its control method in a kind of pneumatic type isolated pressure detection |
| CN116374383B (en) * | 2023-06-02 | 2023-08-01 | 中国人民解放军总医院第三医学中心 | Urine sample storage device for urological department |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8382708B2 (en) * | 2005-01-26 | 2013-02-26 | Mayser, Llc | Zero-pressure balloon catheter and method for using the catheter |
| CN102579029A (en) * | 2012-04-10 | 2012-07-18 | 何大维 | Urinary bladder pressure alarm automatic control urine discharging device |
| CN103598943B (en) * | 2013-09-25 | 2016-08-17 | 西安汇智医疗器械有限公司 | A kind of uroflow monitor controller and the system of supporting pipeline composition thereof |
| CN103877668A (en) * | 2014-04-02 | 2014-06-25 | 葛虎 | Disposable urethral catheter for measuring body temperature and abdominal pressure |
| CN204091970U (en) * | 2014-08-26 | 2015-01-14 | 天津榕丰科技有限公司 | A kind of pipeline with the detection of pneumatic type isolated pressure and valve |
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Effective date of registration: 20190129 Address after: Room 603, Building 20, 6055 Jinhai Highway, Fengxian District, Shanghai Patentee after: Shanghai Xiaoyou Medical Technology Co., Ltd. Address before: 300110 Tianjin Xiqing District North Town Jinjing Highway North Side Zhongbei Science and Technology Industrial Park Zone II 13-1 Patentee before: TIANJIN BANYANTREE-TECH CO., LTD. |
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