CN105067189A - Portable standard water pressure device - Google Patents
Portable standard water pressure device Download PDFInfo
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- CN105067189A CN105067189A CN201510475629.6A CN201510475629A CN105067189A CN 105067189 A CN105067189 A CN 105067189A CN 201510475629 A CN201510475629 A CN 201510475629A CN 105067189 A CN105067189 A CN 105067189A
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- bar
- horizontal box
- chuck
- water level
- upper bracket
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Abstract
The invention discloses a portable standard water pressure device, which is used for calibrating a urodynamic analyzer. The portable standard water pressure device comprises a horizontal box body platform (A), a detachable telescopic rod (B), a water level identifying cylinder (E) and a vertical indicator (H) used for carrying out vertical detection on the detachable telescopic rod (B), wherein the horizontal box body platform (A) is provided with a device for performing horizontal adjustment on the horizontal box body platform (A); a stand column (A-6) is fixed inside a box body of the horizontal box body platform (A), and the stand column (A-6) is wound with a flexible water pipe (C); each section of a pull rod of the detachable telescopic rod (B) is provided with height scales; the lower end of the flexible water pipe (C) is communicated with a pressure measuring channel of the urodynamic analyzer, and the upper end is connected with the water level identifying cylinder (E); and the water level identifying cylinder (E) is fixed on one section of the pull rod through a movable clamp (G). The portable standard water pressure device can effectively solve the daily calibration problem of pressure parameters of the urodynamic analyzer.
Description
Technical field
The present invention relates to Medical Devices clinical detection field, refer to a kind of Portable standard water pressure device especially.
Background technology
Urine dynamic analysis instrument is the instrument of pathology for analyzing function, mechanism and urinary dysfunction disease that lower urinary tract is urinated, physiology change, generally be integrated with three road squash type pressure transducers to be used for measuring bladder pressure, abdominal pressure, urethra pressure, because can not ignore zero point drift and the rubber diaphragm catabiosis of squash type pressure transducer can the tonometric accuracy of appreciable impact urine dynamic analysis instrument, need to carry out routine calibration to urine dynamic analysis instrument pressure parameter.The tonometric of urine dynamic analysis instrument is different from common pressure-measuring instrument with reference to zero-bit, and it is not using atmospheric pressure as zero-bit, but using the hydraulic pressure of reference point (pubic symphysis place) as zero point.Therefore, the pressure calibration of urine dynamic analysis instrument is different from other common medical pressure gage or the sensors such as electronic sphygmomanometer, be necessary that providing a kind of is specially convenient to and the slight pressure standard source being set up channel contact by correction force snesor, to realize on-site proving and the detection of pressure.The field calibration of pressure not only can once complete main frame and sensor matching is calibrated, effectively can also solve pressure transducer dismounting difficulty and performance uncertain problem after again installing, greatly reduce the difficulty of routine calibration, the popularization of calibration, Quality Control work is seemed particularly important.And the various liquid manometer such as existing U-shaped hydraulic ga(u)ge on market, because of the restriction of actuating medium (easily polluting the pressure survey passage of urine dynamic analysis instrument), bulk or the aspect problem with reference to zero adjustment, be not suitable for the field calibration of urine dynamic analysis instrument.
Summary of the invention
For solving the problem, the invention reside in and a kind of Portable standard water pressure device that can solve the daily calibration problem of urine dynamic analysis instrument pressure parameter is very well provided.Technical scheme is as follows:
A kind of Portable standard water pressure device, for calibrating urine dynamic analysis instrument, comprise horizontal box platform (A), detachable expansion link (B), water level mark cylinder (E) and the vertical-indicator (H) for carrying out vertical check to detachable expansion link (B), wherein
Described horizontal box platform (A), is provided with the device for carrying out Level tune to horizontal box platform (A); Be fixed with column (A-6) at the box house of horizontal box platform (A), be wound with flexible water conduit (C) thereon;
Detachable expansion link (B), comprise several sections of pull bars, what be positioned at top is bar (B-4), and what be positioned at bottom is outer bar (B-1), be flexibly connected with horizontal box platform (A) bottom it, be provided with altitude scale at every section of pull bar;
Flexible water conduit (C), its lower end is connected with the pressure survey passage of urine dynamic analysis instrument, upper end water receiving bit-identify cylinder (E);
Water level mark cylinder (E), by a movable clip (G), is fixed on certain section of pull bar;
Described live splint attached bag draws together two chucks, and the first chuck is mark collet tube (G-3), and match with the external diameter of mark cylinder, the second chuck is draw bar chuck (G-4); The folder tail that each chuck is all connected by spring with two, two chucks are connected by respective folder tail, and the folder tail be connected is straight line (G-2), are used to refer to the height of water level mark cylinder water level; Being designed with gib screw (G-5) at the retaining part of draw bar chuck (G-4), being fastened on certain section of pull bar for making draw bar chuck.Be three the case pin be arranged at the bottom of case for carrying out the device of Level tune to horizontal box platform (A), one of them case pin (A-3) is highly fixing, and another two case pin (A-1, A-2) can regulate height.
Preferably, vertical-indicator (H), for comprising lower carriage (H-3) to flexible, upper bracket (H-2) and the weight with suspension line, the appearance profile of lower carriage (H-3) and upper bracket (H-2) is completely the same, all comprise two parts, a part is band throughhole portions, another portion is band gap part, difference is that the internal diameter of two through holes is different, after lower carriage (H-3) and upper bracket (H-2) alignment, two through holes are coaxial, through hole on lower carriage (H-3) matches with outer bar, through hole on upper bracket (H-2) matches with interior bar, during use, lower carriage (H-3) overlaps outside on bar, upper bracket (H-2) is enclosed within interior bar, weight hangs on the opening position of upper bracket (H-2), the gap of lower carriage (H-3) is used for contraposition.
This standard water pressure device has following technique effect:
(1) can with medical secondary pure water for actuating medium, be convenient to the cleaning of calibrating rear urine dynamic analysis instrument pressure survey passage, decrease the probability of patient infection, have and measure advantage accurately, improve the security of urine dynamic analysis instrument pressure calibration, reliability and work efficiency.
(2) this movable clip can adapt to the pull bar external diameter of different section, makes mark cylinder reliably on fastening detachable expansion link.By adopting the design of same folder tail to two chucks, further facilitate the accurate reading of mark cylinder liquid level.
(3) common vertical-indicator is improved, adopt coaxial design, enable indicator carry out vertical adjustment to expansion link; And it is simple to have structure, makes and be easy to advantage.
(4) flexible water conduit is wrapped on the box house column of horizontal box platform, adopts extension type pull bar, improves, have advantage that is simple to operate, portable convenience to mark cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation of device in embodiment;
Fig. 2 is live splint minor structure schematic diagram;
Fig. 3 is vertical-indicator stainless steel strut structural representation, and (a) (b) is front elevation and the vertical view of stainless steel strut (H-2) respectively; C () (d) is front elevation and the vertical view of stainless steel strut (H-3) respectively;
Fig. 4 is dismountable portable plate structural representation.
Embodiment
For clearly demonstrating the technical scheme in the present invention, providing preferred embodiment below and being described with reference to the accompanying drawings.
1. horizontal box platform (A)
The casing part of horizontal box platform is mainly as the storage space of the measurement components such as flexible water conduit, expansion link and weight.Casing inner bottom part designs a root post (A-6), and flexible water conduit (C) is wound on column, with the distortion of the winding and pipeline that prevent flexible water conduit.Have 3 case pin at the bottom of case, wherein, case pin (A-3) is highly fixing, and case pin (A-1, A-2) is expansion screw structure, height adjustable, and the surface level for casing platform regulates.Box cover plate is a dismountable portable plate (A-4), adopts and connect screw soon and be fixed on casing during use.Upper cover plate has a fixed orifice and " U " v notch v, fixed orifice is used for fixing expansion link; " U " v notch v, is equipped with slide damper (A-5), as flexible water conduit pilot hole.
2. detachable expansion link (B)
Detachable expansion link is 4 joint pull bar (B-1, B-2, B-3, B-4) designs, and lower end is designed with nut (B-5), fixing for expansion link.Each joint pull bar can stretch, non-rotatable, and every pole body length is 50cm, and the body of rod stretches " pyrrole poh " sound that put in place, to show that stretching puts in place.The height adjustment range of pull bar is 50cm ~ 200cm, in 4 joint pull bars, innermost layer pull bar (B-4) is only as the sub-hold assembly of live splint, other three layers of pull bars (B-1, B-2, B-3) are except serving as the sub-hold assembly of live splint, also as elevation carrection bar, bar is invested corresponding length magnitude information: when expansion link is in complete extended state, from outside to inside, on three layers of pull bar (B-1, B-2, B-3) top, the height on edge is respectively 50cm, 100cm and 150cm; Outermost layer pull bar (B-1) is fixed with length scales, and for reading with reference to zero-bit (unit: cm), nominal range is 5 ~ 45mm, and minimum division value is 0.5mm.
3. flexible water conduit (C)
Flexible water conduit overall length is 230cm, and its lower end forms linker, upper end water receiving bit-identify cylinder (E) by threeway (D) and each pressure transducer of urine dynamic analysis instrument, utilizes upper and lower side water colunm height difference to produce different pressure.
4. water level mark cylinder (E)
Water level mark cylinder is a hard transparent cylindrical drum, much larger than flexible water conduit, (reduce the impact of capillarity, upper end is that straight opening leads directly to air, for moisturizing to its internal diameter, lower end connects flexible water conduit by a butterfly valve (F), and water level graticule is by horizontal liquid level self-assembling formation in cylinder.
5. movable clip
Movable clip as shown in the figure, liner rubber (G-1) is designed with inside clip, the surface of contact of clip and retaining part can be strengthened, play anti-skidding effect, its retaining part is respectively the pull bar of water level mark cylinder (E) cylindrical shell and expansion link (B), two clip lower edges are concordant, are used to refer to the height of water level mark cylinder water level.What gib screw (G-5) pressed from both sides for pull bar fixes, to prevent because in mark cylinder, flexible pipe and pipe, medical water weight causes movable clip skew back on the impact of measuring.
6. vertical-indicator (H)
In the third layer of expansion link, the bottom of masthead portion and outer bar is provided with a pair on all four stainless steel strut of appearance profile (H-2, H-3), its internal diameter is different, two support consistencies from top to bottom, each support upper limb has apart from end face 1cm place " V " shape gap that opening is 2mm.During use, weight hangs on the opening position of upper bracket (H-2), and the gap of lower carriage (H-3) is used for contraposition, when weight point aims at the gap of lower carriage, shows that now expansion link is perpendicular to surface level.
Pipeline connects: this device is placed in convenient with urinated dynamic analysis instrument by school and carry out the position that pipeline is connected.Use the upper cover plate (A-4) of front dump lower box platform, expansion link is fixed on upper cover plate by fixed orifice, more again upper cover plate is fixed on casing.Stretched completely by expansion link, pulled out by flexible water conduit (C) from casing, in water pipe snaps in " U " v notch v, the slide damper (A-5) on mobile upper cover plate seals breach, forms flexible water conduit pilot hole.Will with by correction force snesor (being generally 2 ~ 3) by pipeline communication, threeway (D) end is connected to pressure transducer.Water level identified cylinder (E) with mobile clip and be fixed on position higher than urine dynamic analysis instrument pressure transducer, the butterfly valve (F) of fetching boiling water under bit-identify cylinder, medical secondary pure water is injected from the upper shed of water level mark cylinder, make it to be full of measuring channel, block the redundancy port of threeway (D) and pressure transducer after discharging bubble with plug, and utilize the butterfly valve of threeway (D) to disconnect the connection with pressure transducer.
Vertical adjustment: under expansion link is in fully compensated state, confirms the upper and lower alignment of steel plate (being in a plane) of upper and lower support (H-2, H-3).After stretching completely, weight (H-1) being hung on the opening position of upper bracket (H-2), regulating box pin screwing, making weight point aim at the gap of lower carriage (H-3), to showing that expansion link is perpendicular to surface level on time.
Calibration with reference to zero-bit: with movable clip (G), water level is identified collet chuck and be held on the outermost pull bar of draw-tube (B-1), the height of adjustment mark cylinder, roughly (desirable reference zero-bit is the pubic symphysis place of patient with the reference zero-bit of urinating dynamic analysis instrument to make it, but the reference zero-bit of reality is depending on installation site, be generally urine dynamic analysis instrument by correction force snesor rubber diaphragm Nang centre-height, or the handrail center height of collection urine toilet) quite.By flexible pipe one end of one section of about 50cm access with by the redundancy port of correction force snesor, the other end leads directly to air, its end face formed spillwag chute, by spillwag chute with reference zero-bit align.The butterfly valve of swivel tee (D), this device and pressure transducer are connected, the difference in height of mark cylinder water level and flexible pipe spillwag chute can cause the flowing of liquid in pipe, suitable adjustment mark cylinder (if desired, need timely supplementing water) height, when making the liquid level in the flexible pipe of redundancy port side concordant with its spilling plane (but in managing, water does not overflow), soft liquid in pipe all remains static.According to hydrostatics principle, now identify concave meniscus lower edge and spilling plane in cylinder and be in same level (all straight-through air of two liquid levels, pressure differential is zero).Alignd with concave meniscus lower edge in mark cylinder by sub-for mark collet chuck lower edge, if the height indicated by pull bar clip lower edge is xcm, now, the hydraulic pressure that pressure transducer bears is the zero-bit pressure of reference bit.In this case pressure transducer is returned to zero, realize the calibration of zero-bit.
The calibration of other spot pressures: clamp water level mark cylinder with mark collet chuck of movable clip, and sub-for mark collet chuck lower edge and water level are identified concave meniscus lower edge in cylinder align; Pull bar clip is clamped in respectively the top that each measures pull bar, now pull bar clip lower edge should with the top close contact measuring pull bar, as the water level in water level mark cylinder there is appreciable change time, fine motion identifies cylinder and makes the sub-lower edge of mark collet chuck and water level identify concave meniscus lower edge in cylinder to keep aliging; The hydraulic pressure (relative to reference to zero-bit pressure) that pressure transducer bears is respectively (50-x) cmH
2o, (100-x) cmH
2o and (150-x) cmH
2o.
This hydraulic devices with medical secondary pure water for actuating medium, be convenient to the cleaning of calibrating rear urine dynamic analysis instrument pressure survey passage, decrease the probability of patient infection, have and measure advantage that is accurate, simple to operate, portable convenience, improve the security of urine dynamic analysis instrument pressure calibration, reliability and work efficiency.
Device in the present invention, can produce pressure limit is fast 4.90 ~ 19.61kPa (50 ~ 200cmH
2o) hydraulic pressure (limits of error are ± 1%), can be used for the calibration of urinating dynamic analysis instrument pressure parameter.
Claims (3)
1. a Portable standard water pressure device, for calibrating urine dynamic analysis instrument, comprise horizontal box platform (A), detachable expansion link (B), water level mark cylinder (E) and the vertical-indicator (H) for carrying out vertical check to detachable expansion link (B), it is characterized in that
Described horizontal box platform (A), is provided with the device for carrying out Level tune to horizontal box platform (A); Be fixed with column (A-6) at the box house of horizontal box platform (A), be wound with flexible water conduit (C) thereon;
Detachable expansion link (B), comprise several sections of pull bars, what be positioned at top is bar (B-4), and what be positioned at bottom is outer bar (B-1), be flexibly connected with horizontal box platform (A) bottom it, be provided with altitude scale at every section of pull bar;
Flexible water conduit (C), its lower end is connected with the pressure survey passage of urine dynamic analysis instrument, upper end water receiving bit-identify cylinder (E);
Water level mark cylinder (E), by a movable clip (G), is fixed on certain section of pull bar;
Described live splint attached bag draws together two chucks, and the first chuck is mark collet tube (G-3), and match with the external diameter of mark cylinder, the second chuck is draw bar chuck (G-4); The folder tail that each chuck is all connected by spring with two, two chucks are connected by respective folder tail, and the folder tail be connected is straight line (G-2), are used to refer to the height of water level mark cylinder water level; Being designed with gib screw (G-5) at the retaining part of draw bar chuck (G-4), being fastened on certain section of pull bar for making draw bar chuck.
2. standard water pressure device according to claim 1, it is characterized in that, described vertical-indicator (H), comprise lower carriage (H-3), upper bracket (H-2) and the weight with suspension line, the appearance profile of lower carriage (H-3) and upper bracket (H-2) is completely the same, all comprise two parts, a part is band throughhole portions, another portion is band gap part, difference is that the internal diameter of two through holes is different, after lower carriage (H-3) and upper bracket (H-2) alignment, two through holes are coaxial, through hole on lower carriage (H-3) matches with outer bar, through hole on upper bracket (H-2) matches with interior bar, during use, lower carriage (H-3) overlaps outside on bar, upper bracket (H-2) is enclosed within interior bar, weight hangs on the opening position of upper bracket (H-2), the gap of lower carriage (H-3) is used for contraposition.
3. standard water pressure device according to claim 1, it is characterized in that, be three the case pin be arranged at the bottom of case for carrying out the device of Level tune to horizontal box platform (A), one of them case pin (A-3) is highly fixing, and another two case pin (A-1, A-2) can regulate height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475629.6A CN105067189B (en) | 2015-08-05 | 2015-08-05 | A kind of Portable standard water pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475629.6A CN105067189B (en) | 2015-08-05 | 2015-08-05 | A kind of Portable standard water pressure device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105067189A true CN105067189A (en) | 2015-11-18 |
| CN105067189B CN105067189B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510475629.6A Expired - Fee Related CN105067189B (en) | 2015-08-05 | 2015-08-05 | A kind of Portable standard water pressure device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105067189B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989869A (en) * | 2017-06-06 | 2017-07-28 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | The Simple calibration method of pressure sensor in a kind of dragging line battle array |
| CN110353706A (en) * | 2019-08-06 | 2019-10-22 | 厦门市领汇医疗科技有限公司 | A kind of urodynamics tractor |
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| US4384470A (en) * | 1981-04-13 | 1983-05-24 | Joseph Fiore | Method and apparatus for testing blood vessel catheters |
| US20050103092A1 (en) * | 2003-11-19 | 2005-05-19 | Chiarito Vincent P. | Portable system for measuring dynamic pressure in situ and method of employment therefor |
| CN101672714A (en) * | 2009-09-25 | 2010-03-17 | 中国北车集团大连机车车辆有限公司 | Accurate calibration micro-pressure detecting method |
| CN204346344U (en) * | 2014-12-12 | 2015-05-20 | 陕西理工学院 | Machine Design tool ruler |
| CN204924562U (en) * | 2015-08-05 | 2015-12-30 | 中国人民解放军总后勤部卫生部药品仪器检验所 | Portable standard water pressure device |
-
2015
- 2015-08-05 CN CN201510475629.6A patent/CN105067189B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384470A (en) * | 1981-04-13 | 1983-05-24 | Joseph Fiore | Method and apparatus for testing blood vessel catheters |
| US20050103092A1 (en) * | 2003-11-19 | 2005-05-19 | Chiarito Vincent P. | Portable system for measuring dynamic pressure in situ and method of employment therefor |
| CN101672714A (en) * | 2009-09-25 | 2010-03-17 | 中国北车集团大连机车车辆有限公司 | Accurate calibration micro-pressure detecting method |
| CN204346344U (en) * | 2014-12-12 | 2015-05-20 | 陕西理工学院 | Machine Design tool ruler |
| CN204924562U (en) * | 2015-08-05 | 2015-12-30 | 中国人民解放军总后勤部卫生部药品仪器检验所 | Portable standard water pressure device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989869A (en) * | 2017-06-06 | 2017-07-28 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | The Simple calibration method of pressure sensor in a kind of dragging line battle array |
| CN110353706A (en) * | 2019-08-06 | 2019-10-22 | 厦门市领汇医疗科技有限公司 | A kind of urodynamics tractor |
| CN110353706B (en) * | 2019-08-06 | 2023-10-20 | 厦门市领汇医疗科技有限公司 | Urodynamic tractor |
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| CN105067189B (en) | 2018-04-03 |
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