CN202974602U - Medical loop inspection device - Google Patents
Medical loop inspection device Download PDFInfo
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- CN202974602U CN202974602U CN 201220656994 CN201220656994U CN202974602U CN 202974602 U CN202974602 U CN 202974602U CN 201220656994 CN201220656994 CN 201220656994 CN 201220656994 U CN201220656994 U CN 201220656994U CN 202974602 U CN202974602 U CN 202974602U
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Abstract
The utility model provides a medical loop inspection device having a fluid conveying pipe. The medical loop inspection device comprises a pump, clamps, pressure meters and a determination portion, wherein the pump provides air respectively for a pair of medical loops in a hollow state to realize pressurization, the clamps enclose the pair of pressurized medical loops, the pressure meters detect internal pressure changes of the pair of enclosed medical loops, and the determination portion compares detection results of the pair of medical loops; when a deviation amplitude exceeds a predetermined threshold, leakage of the medical loops is determined; when the deviation amplitude is lower than the predetermined threshold, no leakage of the medical loops is determined. The pump provides air for a medical loop in a hollow state to realize pressurization, the clamp encloses one end of the pressurized medical loop, the pressure meter detects internal pressure change of the enclosed medical loop of which one end is enclosed and the other end is opened, and the determination portion compares a detection result of the medical loop; when internal pressure exceeds a predetermined threshold, obstruction of the medical loop is determined; when the internal pressure is lower than the predetermined threshold, no obstruction of the medical loop is determined.
Description
Technical field
The utility model relates to a kind of testing fixture that is applicable to the medical loop of blood purification system.
Background technology
In recent years, in the treatment of the diseases such as the kidney disease of the complication with serious circulation system, multiple organ dysfunction, particularly universal in first aid and concentrated treatment field have a kind of blood purification method that is called as the continuous blood purification method, improved clinical effectiveness.
The continuous blood purification method has Continuous Hemofiltration method (continuoushemofiltration), Acute renal failure method (continuous hemodialysis), Continuous Hemofiltration dialysis (continuous hemodiafiltration) etc., distinguishes use according to therapeutic purposes.And, when the treatment that utilizes the whole bag of tricks, use the blood purification system corresponding with each method.For example, in patent documentation 1 (WO2008/052453), a kind of medical loop that utilizes the blood purification system of continuous blood purification method and be applicable to blood purification system (also referred to as " blood purification circuit ") is disclosed.
This medical loop has soft pipe, to because of damaged, very important with the inspection of the caused leakage of bad connection of each element, carries out leak test before as product export.
Usually, in leak test, the variation of supplying with pressurized air and measuring the interior pressure in medical loop in the medical loop of hollow state is leaked thereby judge whether to exist.
The utility model content
The problem that utility model will solve
Yet, check medical loop seriatim and by handwork in leak test in the past, so efficient is poor, and deviation easily occurs in judgement.
In addition, only cause by the leak test meeting also being judged as the nothing leakage in the situation that the loop is stopped up.
Therefore, the purpose of this utility model be to provide a kind of can be efficiently and detect accurately medical loop and whether exist and leak and can detect the testing fixture that whether has obstruction in the loop.
For the scheme of dealing with problems
The utility model is a kind ofly to be applicable to blood purification system and to possess testing fixture for delivery of the medical loop of the pipe of fluid, it is characterized in that possessing: pump, and it pressurizes a pair of above-mentioned medical loop that air is supplied to respectively hollow state; Fixture (clamp), it seals pressurized a pair of above-mentioned medical loop; Pressure gauge, the variation of the interior pressure in a pair of above-mentioned medical loop that its detection is closed; And judging part, the testing result in a pair of above-mentioned medical loop that it will be detected by above-mentioned pressure gauge compares, the situation that surpasses predefined threshold value at deviation oscillation judges as leakage is arranged, and be that situation below above-mentioned threshold value judges at this deviation oscillation is without leaking.
The utility model is a kind ofly to be applicable to blood purification system and to possess testing fixture for delivery of the medical loop of the pipe of fluid, it is characterized in that possessing: pump, and pressurize in its above-mentioned medical loop that supplies air to hollow state; Fixture, its end to pressurized above-mentioned medical loop seals; Pressure gauge, it is to an end sealing and the variation of the interior pressure in an end open above-mentioned medical loop detects; And judging part, the situation that its interior pressure in the above-mentioned medical loop that is detected by above-mentioned pressure gauge surpasses predefined threshold value judges as obstruction is arranged, and presses as the situation below above-mentioned threshold value judges to be the nothing obstruction in this.
The effect of utility model
According to the utility model, can be efficiently and detect accurately medical loop and whether have leakage, can also detect simultaneously whether have obstruction.
Description of drawings
Fig. 1 is the front view of the related testing fixture of embodiment of the present utility model.
Fig. 2 is the vertical view of testing fixture.
Fig. 3 is the right view of testing fixture.
Fig. 4 is the stereographic map shown in the loop setting table that is configured in the testing fixture right side is amplified.
Fig. 5 is the block diagram of association of structure, the each several part of explanation testing fixture.
Fig. 6 means the chart of the check result in medical loop, and Fig. 6 (a) represents leak free state, and (b) expression of Fig. 6 has the state of leakage, and (c) expression of Fig. 6 is without the state that stops up, and Fig. 6 (d) expression has the state of obstruction.
Fig. 7 means the vertical view of an example in medical loop.
Description of reference numerals
1: testing fixture; 23b: judging part; 23e: the pressure gauge of measuring pressure differential; 24: pressure gauge; 30: pump; 33d: automatic fixture; 100: medical loop; 100x: pipe.
Embodiment
Below, explain the preferred implementation of the related testing fixture of the utility model with reference to accompanying drawing.
At first, illustrate simply as the medical loop that checks object with reference to Fig. 7.Fig. 7 represents an example in medical loop, but is not defined to this mode as the medical loop that checks object, can suitably select according to therapeutic purposes.
As shown in Figure 7, medical loop 100 is applicable to blood purification system, has: the discharge opeing loop 100a of section, and it for example discharges from blood purification the moisture that comprises refuse; The dislysate supply circuit 100b of section, it is supplied to the interior filtered solution side of blood purification 101 with dislysate; And the fluid infusion supply circuit 100c of section, it is connected to blood recovery loop section (omitting diagram) for the patient is injected in fluid infusion.Each loop 100a, 100b, 100c possess respectively for delivery of the fluid pipe 100x of (also comprising pressurized air except liquid), and pipe 100x is made of soft resins such as vinyl chloride.The discharge opeing loop 100a of section, the dislysate supply circuit 100b of section and the fluid infusion supply circuit 100c of section form and pass respectively halfway the first flat shape panel 100d and the second flat shape panel 100e.
The first flat shape panel 100d and the second flat shape panel 100e are the article shaped that is formed with the plastics of fluid path.Two writing board shape stream profiled parts that are formed with fluid path incompatible manufacturing can be affixed, also the writing board shape stream profiled part that is formed with fluid path incompatible manufacturing can be affixed with dull and stereotyped these two.In addition, can also make by blow molding.
Then, with reference to Fig. 1 ~ Fig. 3, testing fixture 1 is described.Testing fixture 1 possesses the apparatus main body 2 of the centre of being disposed at and is disposed at the loop setting table 3 of left and right.The loop setting table 3 of apparatus main body 2 and left and right is by being connected for delivery of compressed-air actuated pipe arrangement and the cable that be used for to send reception control signal etc.
Apparatus main body 2 possesses in vertical (above-below direction) upper long rectangular box 21.At the lower surface of casing 21, castor (caster) 21a with stop part is installed.Take in the major part of the pipeline (pipe arrangement) 22 that pressurized air flows through in the bottom of casing 21.
Be connected between the compressed-air actuated supply nozzle 33e, 33f, 33g of pipeline 22 (with reference to Fig. 5) with pump 30 and the loop setting table 3 that is arranged at the left and right, this pump 30 is supplied with pressurized air and is pressurizeed in medical loop 100.On pipeline 22, be disposed with from upstream side connector 22a, two filtrator 22b, flow channel switching valve 22c and the main reduction valve 22d that compressed-air actuated supply pipe (flexible pipe) connects.Than the main reduction valve 22d position of downstream more, the pipe arrangement that forms pipeline 22 is branched off into six the tunnel, is respectively arranged with transfer valve 22e, 22f, the 22g that opens and closes on each take-off line 22x, 22y, 22z.The terminal of each take-off line 22x, 22y, 22z is connected in three supply nozzle 33e, 33f, the 33g that is arranged on loop setting table 3.
Leak tester 23 possesses control substrate, input-output unit and the external memory etc. that CPU, RAM and ROM etc. have been installed.Leak tester 23 is by reading in the software of regulation in the hardware such as CPU, RAM, thereby input-output unit etc. moves to realize setting function under the control of CPU.As the functional structure of leak tester 23, the pressure gauge 23e (with reference to Fig. 5) that has input part 23a, judging part 23b, the data preservation 23c of section, control part 23d and be used for measure differences in pressure.
Top at casing 21 possesses: operating touch panel 25, the control that its input of accepting to be undertaken by the operator is stipulated the control part 23d of leak tester 23; And loudspeaker 26, its judged result according to the judging part 23b of leak tester 23 is come output error message, alarm.In addition, the notice of error message can be not only sound, can be also light, vibration, image or their combination.
Setting table 3 modes with clamping device main body 2 in a pair of loop are arranged at the left and right.The loop setting table 3 of left and right is identical in fact, and therefore right side one side's loop setting table 3 only mainly is described.Loop setting table 3 possesses: chassis section 31, and it is provided with the castor 31a with stop part; Frame section 32, it is set to hold up from the rear side of chassis section 31; Mounting portion 33, it is configured in chassis section 31 obliquely; And loop pallet 34, it is configured on mounting portion 33.In addition, be specifically arrange in the left and right a pair of, but be not limited to the left and right.
At the upper surface of mounting portion 33, for the loop of fixing the essentially rectangular that loads is provided with engaging sheet 33c with pallet 34 at six places, the loop is set to be fixed in these engaging sheets 33c with pallet 34.In addition, be provided with to nip at the upper surface of mounting portion 33 the automatic fixture 33d that the mode closure of the pipe 100x in medical loop 100 is sealed the pipe 100x in medical loop 100.In addition, control the switching of automatic fixture 33d by the control part 23d of leak tester 23.In addition, whether there is the sensor 33h of barrier (people's hand etc.) on being provided with for detection of medical loop 100 on mounting portion 33.
As shown in Figure 4, the loop is split into three parts with pallet 34, by with three cut apart pallet 34a, 34b, 34c arranges combinedly, completes loop with the setting of pallet 34.Suitably be provided with the otch of the automatic fixture 33d that avoids being arranged at mounting portion 33 on pallet 34 in the loop.In addition, be provided with and the shape in medical loop 100, the particularly similar and outstanding land 34d of section of the outer shape of the first flat shape panel 100d and the second flat shape panel 100e in the present embodiment with the upper surface of pallet 34 in the loop.Correspondingly prepare multiple loop with pallet 34 with multiple medical loop 100, when as the kind change in the medical loop 100 that checks object, according to this change, for example cut apart pallet 34x from what cut apart that pallet 34a replaces with other.In addition, about the dividing method of loop with pallet, can suitably change according to the form in checked medical loop, and be not limited to be divided into three parts.
In the mode that embeds in the 34d of section of land, medical loop 100 is set in the loop on pallet 34.Be provided with the soft pipe 100x that the fluids such as fluid infusion (being pressurized air) pass through when checking in medical loop 100.Pipe 100x is suitably clamped by automatic fixture 33d.In addition, forming independently, a plurality of pipes in path (being three pipes in the present embodiment) 100x is connected to compressed-air actuated each supply nozzle 33e, 33f, 33g.
From each supply nozzle 33e, 33f, 33g, pressurized air is supplied to pipe 100x.
In addition, the interior pressure in each path is to be detected by the pressure gauge 23e and the pressure gauge 24 that are used for the mensuration pressure differential, and the judging part 23b of leak tester 23 monitors the force value (testing result) that detects all the time.
The action of the testing fixture 1 when then, with reference to Fig. 5 and Fig. 6, process, the leak test of leak test being described, the action of stopping up the process that checks and stopping up the testing fixture 1 when checking.When the beginning leak test, operating touch panel 25 is operated to open transfer valve 22e or 22f or 22g or their combination, will be separately positioned on as the medical loop 100 of the identical type that checks object the loop setting table 3 (step L1) of left and right.In the arranging of medical loop 100, the pipe 100x in three paths is connected to respectively supply nozzle 33e, 33f, 33g, closed automatic fixture 33d comes at the interior formation confined space in medical loop 100.In addition, when carrying out leak test, the input part 23a of leak tester 23 is operated, preset be used to the threshold value that judges whether to exist leakage (higher limit of deviation oscillation).The threshold value of herein setting is stored in the data preservation 23c of section.
Then, operating touch panel 25 is operated, pressurized air is supplied in medical loop 100 (step L2).When reaching official hour, stop compressed-air actuated supply, utilize transfer valve 22e, 22f, 22g that the path is sealed, with medical loop 100 inner sealings (step L3).
Pressure gauge 23e detects the interior pressure in medical loop 100 all the time, and in addition, the judging part 23b of leak tester 23 monitors pressure gauge 23e.Then, judging part 23b detects each the medical loop 100 interior pressure variation (step L4) of process in time after medical loop 100 is closed.And, will through after stipulated time t1, for example through compressing into the row contrast in each medical loop 100 of the left and right after five seconds, obtain poor (deviation oscillation) (the step L5) of interior pressure.
Then, judging part 23b reads the threshold value that is stored in the data preservation 23c of section, and compares with the deviation oscillation Δ P that obtains in step L5.Be in the situation (with reference to (b) of Fig. 6) of deviation oscillation Δ P greater than threshold value in its result, being judged as in the medical loop 100 of at least one party in pair of right and left medical loop 100 has leakage, be that situation (with reference to (a) of Fig. 6) below threshold value judges at deviation oscillation Δ P is without leaking.And judging part 23b for example can also be judged as in the medical loop 100 of leaking the large side of the decline occur in interior pressure.
Judging part 23b is (step L6) when being judged as leakage, reads the voice data that is stored in the data preservation 23c of section, from loudspeaker 26 output error message, alarm.
Then, obstruction inspection is described.When beginning to stop up inspection, operating touch panel 25 is operated to open transfer valve 22e, 22f, 22g, will be separately positioned on as the medical loop 100 of the identical type that checks object the loop setting table 3 (step B1) of left and right.In the arranging of medical loop 100, the pipe 100x in three paths is connected to respectively supply nozzle 33e, 33f, 33g, open automatic fixture 33d and come at the interior formation open space in medical loop 100.In addition, stopping up when checking, the input part 23a of leak tester 23 is being operated, presetting be used to the threshold value that judges whether to exist obstruction (lower limit of interior pressure).The threshold value of herein setting is stored in the data preservation 23c of section.
Then, operating touch panel 25 is operated, pressurized air is supplied in medical loop 100 (step B2).When reaching official hour, stop compressed-air actuated supply, utilize transfer valve 22e, 22f, 22g that the path is sealed, make to be in an end open state (step B3) in medical loop 100.
Then, judging part 23b reads the threshold value that is stored in the data preservation 23c of section, and with obtain in step B5 in compress into row contrast.Be in the situation (with reference to (d) of Fig. 6) of interior pressure greater than threshold value in its result, being judged as in the path in the medical at least loop 100 in medical loop 100 has obstruction, be that situation (with reference to (c) of Fig. 6) below threshold value judges in interior pressure is without stopping up.
Judging part 23b is (step B6) when being judged as obstruction, reads the voice data that is stored in the data preservation 23c of section, from loudspeaker 26 output error message, alarm.
Above, related according to present embodiment testing fixture 1 can carry out leak test simultaneously to the medical loop 100 of pair of right and left at least, therefore can check efficiently whether medical loop 100 exists leakage.In addition, the testing result of the interior pressure in a pair of medical loop 100 is compared to judge whether to exist leak, therefore compare with the situation that checks respectively single medical loop 100 and can detect simpler and more accurately.In addition, by stopping up inspection, can detect reliably for medical loop 100 can not be by the detected obstruction of leak test.
In addition, in the above-described embodiment, change to compare to judge whether to exist by the interior pressure with pair of right and left medical loop 100 and leak and whether exist obstruction, but the utility model is not defined to this mode, can also carry out the leak test in the medical loop 100 more than three and stop up checking.For example, can also adopt a pair of medical loop 100 as the next apparatus structure that can check simultaneously a plurality of unit in a unit.In addition, also can be judged as in the inspection of carrying out a pair of medical loop 100 without after leaking, one party wherein is replaced by new medical loop 100, and again carry out the leak test in a pair of medical loop 100.
Claims (2)
1. one kind is applicable to blood purification system and possesses testing fixture for delivery of the medical loop of the pipe of fluid, it is characterized in that possessing:
Pump, it pressurizes a pair of above-mentioned medical loop that air is supplied to respectively hollow state;
Fixture, it seals pressurized a pair of above-mentioned medical loop;
Pressure gauge, the variation of the interior pressure in a pair of above-mentioned medical loop that its detection is closed; And
Judging part, the testing result in a pair of above-mentioned medical loop that it will be detected by above-mentioned pressure gauge compares, the situation that surpasses predefined threshold value at deviation oscillation judges as leakage is arranged, and be that situation below above-mentioned threshold value judges at this deviation oscillation is without leaking.
2. one kind is applicable to blood purification system and possesses testing fixture for delivery of the medical loop of the pipe of fluid, it is characterized in that possessing:
Pump, pressurize in its above-mentioned medical loop that supplies air to hollow state;
Fixture, its end to pressurized above-mentioned medical loop seals;
Pressure gauge, it is to an end sealing and the variation of the interior pressure in an end open above-mentioned medical loop detects; And
Judging part, the situation that its interior pressure in the above-mentioned medical loop that is detected by above-mentioned pressure gauge surpasses predefined threshold value judges as obstruction is arranged, and presses as the situation below above-mentioned threshold value judges to be the nothing obstruction in this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656994 CN202974602U (en) | 2012-12-03 | 2012-12-03 | Medical loop inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656994 CN202974602U (en) | 2012-12-03 | 2012-12-03 | Medical loop inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974602U true CN202974602U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656994 Expired - Fee Related CN202974602U (en) | 2012-12-03 | 2012-12-03 | Medical loop inspection device |
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| Country | Link |
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| CN (1) | CN202974602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548234A (en) * | 2013-10-11 | 2015-04-29 | 旭化成医疗株式会社 | Liquid loop |
| CN106124139A (en) * | 2016-08-17 | 2016-11-16 | 上海佩尼医疗科技发展有限公司 | A kind of method of quick detection dialyser seepage |
-
2012
- 2012-12-03 CN CN 201220656994 patent/CN202974602U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548234A (en) * | 2013-10-11 | 2015-04-29 | 旭化成医疗株式会社 | Liquid loop |
| CN106124139A (en) * | 2016-08-17 | 2016-11-16 | 上海佩尼医疗科技发展有限公司 | A kind of method of quick detection dialyser seepage |
| CN106124139B (en) * | 2016-08-17 | 2019-01-29 | 上海佩尼医疗科技发展有限公司 | A kind of method of quick detection dialyzer leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20191203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |