CN104997501A - Urine dynamic analyzer pressure parameter calibration method - Google Patents
Urine dynamic analyzer pressure parameter calibration method Download PDFInfo
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- CN104997501A CN104997501A CN201510475643.6A CN201510475643A CN104997501A CN 104997501 A CN104997501 A CN 104997501A CN 201510475643 A CN201510475643 A CN 201510475643A CN 104997501 A CN104997501 A CN 104997501A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
- A61B5/202—Assessing bladder functions, e.g. incontinence assessment
- A61B5/205—Determining bladder or urethral pressure
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Abstract
The invention discloses a urine dynamic analyzer pressure parameter calibration method. A device adopting the method is a newly-designed portable standard water pressure device and comprises a horizontal box body platform (A) and a detachable telescopic rod (B), wherein a flexible water pipe (C) whose upper end is communicated with a pressure measurement passage of the urine dynamic analyzer and lower end is connected with a water level marking cylinder (E) is wound on the horizontal box body platform (A); and the detachable telescopic rod (B) is fixed on the water level marking cylinder (E) on a certain section of a pull rod via a movable clip (G). The method comprises steps: (1) pipeline connection is carried out; (2) a vertical indicator (H) is used for carrying out vertical adjustment on the detachable telescopic rod (B); and (3) a reference zero position is calibrated. The daily calibration problem of the pressure parameters of the urine dynamic analyzer can be well solved.
Description
Technical field
The present invention relates to armarium Clinical detection field, refer to a kind of pressure parameter calibration steps 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's 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 null offset and the rubber membrane 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 electric 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 transducer, to realize field calibration 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 hydrostatic gauge on market, because of the restriction of working media (easily polluting the pressure measxurement 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 calibration steps urine dynamic analysis instrument pressure parameter being carried out to daily calibration is provided.Technical scheme of the present invention:
A kind of urine dynamic analysis instrument pressure parameter calibration steps, the method adopts a kind of Portable standard water pressure device, and this standard water pressure device, comprising:
Described horizontal box platform (A), is provided with the device for carrying out horizontal adjustment 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 measxurement 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 ambulatory 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 hold-down screw (G-5) at the retaining part of draw bar chuck (G-4), being fastened on certain section of pull bar for making chuck;
Vertical-indicator (H), comprise lower carriage (H-3), upper bracket (H-2) and the weight with suspension line, the appearance profile of two supports 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, and the through hole on upper bracket (H-2) matches with interior bar;
Following method is adopted to carry out the calibration of pressure parameter:
(1) pipeline connects: this device is placed in convenient with urinated dynamic analysis instrument by school and carry out the position that pipeline is connected, expansion link is fixed on horizontal box platform (A), the lower end of flexible water conduit (C) certain pressure measxurement passage with urine dynamic analysis instrument is connected, is connected to the redundancy port place of the pressure transducer needing calibration; With mobile clip, water level is identified the position that cylinder (E) is fixed on the pressure transducer of the needs calibration higher than urine dynamic analysis instrument, inject medical pure water purification from the upper shed of water level mark cylinder, make it to be full of measuring channel;
(2) utilize vertical-indicator (H) to detachable expansion link (B) vertical adjustment: under detachable expansion link (B) is in fully compensated state, confirm upper and lower support (H-2, H-3) upper and lower alignment, after stretching completely, weight (H-1) is hung on the opening position of upper bracket (H-2), horizontal adjustment is carried out to horizontal box platform (A), weight point is made to aim at the gap of lower carriage (H-3), to showing that detachable expansion link (B) is perpendicular to horizontal plane on time.
(3) with reference to the calibration of zero-bit: with movable clip (G), water level is identified collet chuck and be held on detachable expansion link (B) outermost pull bar (B-1), the height of adjustment mark cylinder, makes it suitable with the reference zero-bit of urine dynamic analysis instrument, one section of flexible pipe one end access is needed the redundancy port of the pressure transducer of calibration, the other end leads directly to air, its end face forms spillwag chute, spillwag chute is alignd with reference to zero-bit, the butterfly valve of swivel tee (D), make flexible hose (C), pressure transducer and coupled flexible pipe form linker, the suitable height regulating mark cylinder, when making the liquid level in the flexible pipe of redundancy port side concordant with its spilling plane and do not overflow, in linker, liquid all remains static, the lower edge of the mark collet tube of movable clip and water level are identified concave meniscus lower edge in cylinder align, the scale of detachable expansion link (B) is utilized to read the height of concave meniscus in mark cylinder, 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.
(4) calibration of other pressure spots: clamp water level mark cylinder with the mark collet tube of movable clip, the draw bar chuck lower edge of movable clip and water level are identified concave meniscus lower edge in cylinder and aligns; The draw bar chuck of movable shelf is clamped on certain section of suitable pull bar, when identifying the water level in cylinder and appreciable change occurring, mobile logo cylinder makes the mark collet tube lower edge of movable clip and water level identify concave meniscus lower edge in cylinder to keep aliging, the scale of detachable expansion link (B) is utilized to read the height of concave meniscus in mark cylinder, the hydraulic pressure that calibrating pressure sensor bears at this pressure spot.
This calibration steps has following technique effect:
(1) can be working media with medical pure water purification, be convenient to the cleaning of calibrating rear urine dynamic analysis instrument pressure measxurement passage, decrease the probability of patient infection, have and measure advantage accurately, improve the safety of urine dynamic analysis instrument pressure calibration, reliability and work efficiency
(2) 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 the movable clip of clamping mark cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation of device in embodiment;
Fig. 2 is ambulatory splint minor structure schematic diagram;
Fig. 3 is vertical-indicator stainless steel strut structural representation, and (a) (b) is front view and the top view of stainless steel strut (H-2) respectively; C () (d) is front view and the top view of stainless steel strut (H-3) respectively;
Fig. 4 is dismountable portable plate structural representation.
Detailed description of the invention
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 memory 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 feet at the bottom of case, wherein, case foot (A-3) is highly fixing, and case foot (A-1, A-2) is expansion screw structure, height adjustable, and the horizontal plane 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 fixing hole and " U " v notch v, fixing hole 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 ambulatory splint, other three layers of pull bars (B-1, B-2, B-3) are except serving as the sub-hold assembly of ambulatory 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-column 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 contact surface 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 hold-down 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 para-position, when weight point aims at the gap of lower carriage, shows that now expansion link is perpendicular to horizontal plane.
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 fixing hole, 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 transducer (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 foot screwing, making weight point aim at the gap of lower carriage (H-3), to showing that expansion link is perpendicular to horizontal plane 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 telescoping 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 transducer rubber membrane 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 transducer, 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 pressure spots: 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 working media, be convenient to the cleaning of calibrating rear urine dynamic analysis instrument pressure measxurement passage, decrease the probability of patient infection, have and measure advantage that is accurate, simple to operate, portable convenience, improve the safety 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.
For the device of setting forth in each embodiment of 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 (1)
1. urinate a dynamic analysis instrument pressure parameter calibration steps, the method adopts a kind of Portable standard water pressure device, and this standard water pressure device, comprising:
Described horizontal box platform (A), is provided with the device for carrying out horizontal adjustment 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 measxurement 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 ambulatory 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 hold-down screw (G-5) at the retaining part of draw bar chuck (G-4), being fastened on certain section of pull bar for making chuck;
Vertical-indicator (H), comprise lower carriage (H-3), upper bracket (H-2) and the weight with suspension line, the appearance profile of two supports 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, and the through hole on upper bracket (H-2) matches with interior bar;
Following method is adopted to carry out the calibration of pressure parameter:
(1) pipeline connects: this device is placed in convenient with urinated dynamic analysis instrument by school and carry out the position that pipeline is connected, expansion link is fixed on horizontal box platform (A), the lower end of flexible water conduit (C) certain pressure measxurement passage with urine dynamic analysis instrument is connected, is connected to the redundancy port place of the pressure transducer needing calibration; With mobile clip, water level is identified the position that cylinder (E) is fixed on the pressure transducer of the needs calibration higher than urine dynamic analysis instrument, inject medical pure water purification from the upper shed of water level mark cylinder, make it to be full of measuring channel;
(2) utilize vertical-indicator (H) to detachable expansion link (B) vertical adjustment: under detachable expansion link (B) is in fully compensated state, confirm upper and lower support (H-2, H-3) upper and lower alignment, after stretching completely, weight (H-1) is hung on the opening position of upper bracket (H-2), horizontal adjustment is carried out to horizontal box platform (A), weight point is made to aim at the gap of lower carriage (H-3), to showing that detachable expansion link (B) is perpendicular to horizontal plane on time.
(3) with reference to the calibration of zero-bit: with movable clip (G), water level is identified collet chuck and be held on detachable expansion link (B) outermost pull bar (B-1), the height of adjustment mark cylinder, makes it suitable with the reference zero-bit of urine dynamic analysis instrument, one section of flexible pipe one end access is needed the redundancy port of the pressure transducer of calibration, the other end leads directly to air, its end face forms spillwag chute, spillwag chute is alignd with reference to zero-bit, the butterfly valve of swivel tee (D), make flexible hose (C), pressure transducer and coupled flexible pipe form linker, the suitable height regulating mark cylinder, when making the liquid level in the flexible pipe of redundancy port side concordant with its spilling plane and do not overflow, in linker, liquid all remains static, the lower edge of the mark collet tube of movable clip and water level are identified concave meniscus lower edge in cylinder align, the scale of detachable expansion link (B) is utilized to read the height of concave meniscus in mark cylinder, 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.
(4) calibration of other pressure spots: clamp water level mark cylinder with the mark collet tube of movable clip, the draw bar chuck lower edge of movable clip and water level are identified concave meniscus lower edge in cylinder and aligns; The draw bar chuck of movable shelf is clamped on certain section of suitable pull bar, when identifying the water level in cylinder and appreciable change occurring, mobile logo cylinder makes the mark collet tube lower edge of movable clip and water level identify concave meniscus lower edge in cylinder to keep aliging, the scale of detachable expansion link (B) is utilized to read the height of concave meniscus in mark cylinder, the hydraulic pressure that calibrating pressure sensor bears at this pressure spot.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475643.6A CN104997501B (en) | 2015-08-05 | 2015-08-05 | One kind urine kinematic analysis instrument pressure parameter calibration method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475643.6A CN104997501B (en) | 2015-08-05 | 2015-08-05 | One kind urine kinematic analysis instrument pressure parameter calibration method |
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| Publication Number | Publication Date |
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| CN104997501A true CN104997501A (en) | 2015-10-28 |
| CN104997501B CN104997501B (en) | 2017-12-05 |
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| CN201510475643.6A Expired - Fee Related CN104997501B (en) | 2015-08-05 | 2015-08-05 | One kind urine kinematic analysis instrument pressure parameter calibration method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109091709A (en) * | 2017-06-21 | 2018-12-28 | 北京万生人和科技有限公司 | Acquire the device and liquid drain control system of bladder pressure |
| CN111904405A (en) * | 2020-08-31 | 2020-11-10 | 江苏盖睿健康科技有限公司 | Blood pressure measuring device |
| CN112767815A (en) * | 2021-02-05 | 2021-05-07 | 自然资源部第一海洋研究所 | Seawater invasion tide simulation system |
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| CN203059678U (en) * | 2013-02-28 | 2013-07-17 | 张伟滨 | Novel pressure and capacity measuring device for urinary bladder |
| CN103948382A (en) * | 2014-05-20 | 2014-07-30 | 绵阳美科电子设备有限责任公司 | Device for measuring urine volume and pressure intensity of bladder and measurement and control method thereof |
| CN203988035U (en) * | 2014-06-30 | 2014-12-10 | 张妙媛 | A kind of integral type bladder pressure and capacity measuring device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203059678U (en) * | 2013-02-28 | 2013-07-17 | 张伟滨 | Novel pressure and capacity measuring device for urinary bladder |
| CN103948382A (en) * | 2014-05-20 | 2014-07-30 | 绵阳美科电子设备有限责任公司 | Device for measuring urine volume and pressure intensity of bladder and measurement and control method thereof |
| CN203988035U (en) * | 2014-06-30 | 2014-12-10 | 张妙媛 | A kind of integral type bladder pressure and capacity measuring device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109091709A (en) * | 2017-06-21 | 2018-12-28 | 北京万生人和科技有限公司 | Acquire the device and liquid drain control system of bladder pressure |
| CN109091709B (en) * | 2017-06-21 | 2024-04-05 | 北京万生人和科技有限公司 | Device for collecting bladder pressure and liquid drainage control system |
| CN111904405A (en) * | 2020-08-31 | 2020-11-10 | 江苏盖睿健康科技有限公司 | Blood pressure measuring device |
| CN112767815A (en) * | 2021-02-05 | 2021-05-07 | 自然资源部第一海洋研究所 | Seawater invasion tide simulation system |
| CN112767815B (en) * | 2021-02-05 | 2022-12-23 | 自然资源部第一海洋研究所 | Seawater invasion tide simulation system |
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| CN104997501B (en) | 2017-12-05 |
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