CN108744147A - Positive depressor, remaining needle, positive pressure tester and positive pressure weight testing method - Google Patents
Positive depressor, remaining needle, positive pressure tester and positive pressure weight testing method Download PDFInfo
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- CN108744147A CN108744147A CN201810732916.4A CN201810732916A CN108744147A CN 108744147 A CN108744147 A CN 108744147A CN 201810732916 A CN201810732916 A CN 201810732916A CN 108744147 A CN108744147 A CN 108744147A
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- positive pressure
- container
- positive
- gear
- push rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention provides a kind of positive depressor, remaining needle, positive pressure tester and positive pressure weight testing methods, wherein positive depressor, including：Container, driving portion and displacement instruction unit, container is for being connected to infusion pipeline, driving portion is installed on container, driving portion is used to drive the hydraulic fluid portion in container to be moved upwards in the side far from or close to infusion pipeline, displacement instruction unit is installed on container, hydraulic fluid portion or driving portion, displacement instruction unit is used to indicate the position in hydraulic fluid portion, and displacement instruction unit can stablize in hydraulic fluid portion in designated position, and detects positive pressure and whether continuous positive pressure is qualified.Positive depressor, remaining needle, positive pressure tester and positive pressure weight testing method solves the problems, such as in the prior art because in each pressure process push rod displacement distance not can determine that due to positive pressure exports unstable phenomenon and still has, and ensure product quality stabilization.
Description
Technical field
The present invention relates to remaining needles, and in particular to a kind of positive depressor, remaining needle, positive pressure tester and positive pressure measure examination side
Method.
Background technology
The application is according to China《Patent Law》It is required that entitled filed in 28 days October in 2017, " a kind of multiple positive pressure is anti-
The domestic priority of the China Patent No. CN201721413825.1 of the positive depressor of thrombus venous detaining needle ".
Chinese patent discloses a kind of multiple positive pressure preventing thrombosis venous detaining needle of 206391292 U of Publication No. CN, should
Remaining needle includes：Indwelling needle, indwelling hose, puncture needle, batcher, extension tube and infusion tee, the infusion tee packet
Liquid pressurization port, medicinal liquid lead port and liquid inlet port are included, the liquid pressurization is equipped with piston in port, and piston is located at
One end of push rod, the other end of push rod and is externally provided with handle positioned at liquid pressurization port, and the surface of push rod is equipped with helicla flute, liquid
The internal face of pressurization port is equipped with protrusion, and protrusion is located in the helicla flute, and rotational handle makes push rod to liquid live end
Mouth inner-spiral type promotes；The extension tube is equipped with liquid stopping clamp.Although the remaining needle passes through anti-to improve through repeatedly pressurization
The effect of thrombus, but the remaining needle there are the problem of be：Although this application is illustrating how that pushing push rod to realize three times adds
Pressure, but when an especially secondary pressurized, be all to control displacement distance of the push rod in liquid pressurization port by experience etc., lead
It causes displacement distance uncertain, therefore will appear pressure after applying every time and not necessarily reach desired value, and then lead to thrombotic phenomena
It still has.
Invention content
The present invention will provide a kind of positive depressor, positive pressure tester and positive pressure weight testing method, solve in the prior art because
Push rod displacement distance not can determine that and cause positive pressure output unstable in each pressure process, and the duration is short and causes thrombus existing
The problem of as still having.
To achieve the above object, present invention employs the following technical solutions：
Present invention firstly provides a kind of positive depressors, including：Container, driving portion and displacement instruction unit, container is for connecting
Pass on infusion pipeline, driving portion be installed on container, driving portion be used to drive the hydraulic fluid portion that is located in container separate or
It is moved upwards close to the side of infusion pipeline, displacement instruction unit is installed on container, hydraulic fluid portion or driving portion, displacement instruction unit is used
Position in instruction hydraulic fluid portion, and displacement instruction unit can stablize in hydraulic fluid portion in designated position.
The invention also provides a kind of multiple continuous positive pressure venous detaining needles, including：Syringe needle, infusion pipeline and as above-mentioned
Positive depressor；Infusion pipeline includes：Extension tube, infusion connector and liquid stopping clamp, extension tube one end are connected to syringe needle, and extension tube is another
One end is connected to the one end of positive depressor, and the reservoir of positive depressor is to infusion connector, and the infusion connector other end is for connecting
To infusion apparatus, the liquid stopping clamp for being opened and closed extension tube is installed in extension tube.
The present invention also provides a kind of positive pressure testers, including：It offers in pedestal pedestal, gauge line and communicating pipe
Communicating passage, is equipped with the communicating pipe being connected to communicating passage bottom end on pedestal, is equipped on pedestal and communicating passage top
Hold the gauge line of connection.
The present invention also provides a kind of positive pressure weight testing methods, include the following steps：
Step 1: air in emptying remaining needle：First, the syringe needle in extension tube is removed；Then, liquid stopping clamp is opened；After again,
The syringe needle of syringe is inserted on infusion connector；Finally, water is injected into remaining needle using syringe so that water is from extension tube
One end is emerged, and air in remaining needle is discharged；
Step 2: installation remaining needle：The end sleeve that extension tube is connected to syringe needle is realized remaining needle and is connected to outside communicating pipe
Pipe is connected to；
Step 3: emptying gauge line：Using syringe water filling into communicating pipe, communicating passage and gauge line, ensure water
It emerges at the top of from gauge line, and ensures do not have bubble in gauge line；
Step 4: zeroing：Using syringe by gauge line water extract out, until gauge line in water level reach zero graduation or
Low scale；
Step 5: closing liquid stopping clamp；
Step 6: extracting syringe, calparine cap makes infusion connector keep closed state；
Step 7: setting the n-th positive pressure that current detection is positive depressor, life n is equal to 1；
Step 8: recording the initial liquid level h0 of water in gauge line；
Step 9: pushing positive depressor so that positive depressor realizes n-th positive pressure, observes water in gauge line after realization immediately
Liquid level h1；
Step 10: after waiting for a period of time, the liquid level h2 of water in gauge line is observed again；
Step 11: drawing a conclusion：
Judge whether n-th positive pressure propulsive force is qualified：Judge whether h1-h0 is more than or equal to rating requirements value H1, if so,
Judge n-th positive pressure propulsive force for qualification；If it is not, then judging n-th positive pressure propulsive force to be unqualified；
Whether continuous positive pressure is qualified after judging n-th positive pressure：Judge whether h2-h1 is more than or equal to rating requirements value H2,
If so, judging that continuous positive pressure is qualification after n-th positive pressure；If it is not, continuous positive pressure does not conform to after then judging n-th positive pressure
Lattice；
Step 12: life n=n+1；
Step 13: setting positive pressure number that positive depressor can be realized as N, N is integer, judges whether n is more than N, if so,
Carry out step 14；If it is not, then carrying out step 8；
Step 14: terminating detection.
Compared with the prior art, the present invention has the advantages that：
By the setting of displacement instruction unit, realizes and send out instruction when hydraulic fluid portion reaches a gear position, and
And gear position can be stabilized to, dual function is realized simultaneously, and will not because send out instruction after hydraulic fluid portion still in movement
And cause hydraulic fluid portion give infusion pipeline pressure and expection it is different, ensure that pressure can accurately be sent out so that
Each positive pressure intensity ensure that the implementation of each positive pressure work, avoid and be not achieved because of each too little pressure in specified range
Demand, while it is excessive and excessive liquid is caused disposably to enter in infusion pipeline and influence holding for positive pressure to avoid each pressure
Continuous output, and then thrombosis can not be reduced.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the sectional view of 1 remaining needle of embodiment；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the sectional view of 2 remaining needle of embodiment；
Fig. 4 is the sectional view of 3 remaining needle of embodiment；
Fig. 5 is the sectional view of 4 remaining needle of embodiment；
Fig. 6 is the sectional view of 6 remaining needle of embodiment；
Fig. 7 is the sectional view of positive pressure tester in embodiment 7；
Fig. 8 is the sectional view of positive pressure tester in embodiment 8；
Fig. 9 is the structural schematic diagram after positive pressure tester is connected with remaining needle.
Reference numeral：Container 1, hydraulic fluid portion 2, driving portion 3, displacement instruction unit 4, push rod 311, nut 312, the gear shaft shoulder
411, gear slot 412, sealing ring 21, gear protrusion 411 ', gear inductance loop 412 ', infusion pipeline 5, extension tube 51, infusion connect
First 52, liquid stopping clamp 53, propulsion electric machine 322, pedestal 61, water level storehouse 610, communicating passage 611, gauge line 62, communicating pipe 63, connection
Body 64.
Specific implementation mode
In order to which so that the present invention is realized technological means, creation characteristic, reached purpose more understand and are apparent to effect,
The present invention is further elaborated with reference to the accompanying drawings and detailed description：
Embodiment 1：
As shown in Figure 1 and Figure 2, a kind of positive depressor, including：Container 1, driving portion 3 and displacement instruction unit 4, container 1 are used
In being connected on infusion pipeline 5, driving portion 3 is installed on container 1, driving portion 3 is used to drive the hydraulic fluid in container 1
Portion 2 is moved upwards in the side far from or close to infusion pipeline 5, and being equipped with displacement on container 1, hydraulic fluid portion 2 or driving portion 3 refers to
Show portion 4, displacement instruction unit 4 is used to indicate the position in hydraulic fluid portion 2, and displacement instruction unit 4 can stablize in hydraulic fluid portion 2 in designated position
(it is：The position that hydraulic fluid portion 2 is reached when each gear).
For the simple driving portion 3 of design structure, driving portion 3 includes：Push rod 311 and nut 312, stretch in container 1
Enter to have push rod 311, push rod 311 to be connected to the hydraulic fluid portion 2 in container 1, push rod 311 is connected to the nut outside container 1
312, nut 312 is threadedly coupled with container 1.
For the simple displacement instruction unit 4 of design structure, the shelves when push rod 311 pushes hydraulic fluid portion 2 to a certain gear are realized
The position shaft shoulder 411 is clasped with gear slot 412, sends out the sound of instruction in place, and at the same time, gear slot 412 limits push rod
311 continue to move forward, as long as the propulsion dynamics of nut 312 no longer increases, push rod 311 can be stabilized to the gear position,
2 initial position of hydraulic fluid portion is certain, and position is certain after reaching gear, so that the pressure that hydraulic fluid portion 2 exports is certain, ensures every
Pressure reaches desired value when secondary gear promotes, and displacement instruction unit 4 includes：An at least gear shaft shoulder 411,311 outer wall of push rod protrusion
There are the gear shaft shoulder 411, container 1 to offer the pilot hole moved for push rod 311, pilot hole inner wall depression forms the gear slot of annular
412, gear slot 412 and the gear shaft shoulder 411 are located at the side that hydraulic fluid portion 2 deviates from infusion pipeline 5,411 equal energy of each gear shaft shoulder
It is connect with 412 buckle-type of gear slot.
Embodiment 2：
As shown in figure 3, the present embodiment and embodiment 1 differ only in：The installation of the gear shaft shoulder 411 and gear slot 412
Position is different.
Displacement instruction unit 4 includes：An at least gear shaft shoulder 411,311 outer wall depression of push rod form gear slot 412, container 1
The pilot hole moved for push rod 311 is offered, pilot hole inner wall is protruding with the gear shaft shoulder 411, the gear shaft shoulder 411 and gear slot
412 are respectively positioned on the side that hydraulic fluid portion 2 deviates from infusion pipeline 5, and each gear shaft shoulder 411 can be connect with 412 buckle-type of gear slot.
Embodiment 3：
The present embodiment is differed only in embodiment 1：Displacement instruction unit 4 is the limit blocking type of protrusion and protrusion cooperation
(it is：Described in parent patent：Gear card group coordinates).
As shown in figure 4, displacement instruction unit 4 includes：Gear protrusion 411 ' and gear inductance loop 412 ', 311 outer wall of push rod are prominent
Go out to have gear protrusion 411 ', container 1 to offer the pilot hole moved for push rod 311, pilot hole inner wall is protruding with gear inductance loop
412 ', gear protrusion 411 ' and gear inductance loop 412 ' are respectively positioned on the side that hydraulic fluid portion 2 deviates from infusion pipeline 5, gear protrusion
411 ' can cross over gear inductance loop 412 '.Only several contacts when gear inductance loop 412 ' starts to contact with gear protrusion 411 '
(namely：When gear protrusion 411 ' crosses over gear inductance loop 412 ', gear protrusion 411 ' needs several jumps or forbearing and conciliatory
Property, so that it may to cross over gear inductance loop 412 '), therefore it is that limit is made that gear inductance loop 412 ', which has certain gear protrusion 411 ',
With sending out impact sound when gear protrusion 411 ' and gear inductance loop 412 ' contact, to prompt some gear in place, if necessary
So that gear protrusion 411 ' crosses over gear inductance loop 412 ', the propulsion dynamics of bigger is needed, as long as the dynamics of propulsion no longer increases, shelves
Position inductance loop 412 ' allows for gear protrusion 411 ' and is stabilized to the gear position with push rod 311, as long as initial position
Centainly, as soon as the advance distance of 311 positive pressures of push rod is certain, then the pressure that hydraulic fluid portion 2 exports also reaches desired value.
In order to enable more smooth when gear protrusion 411 ' is across gear inductance loop 412 ', 411 ' shape of gear protrusion is circle
Taper type.
In order to design hydraulic fluid portion 2 convenient for production and easy for installation, hydraulic fluid portion 2 includes：Sealing ring 21, sealing ring 21 are set with
It is located on the end in container 1 in push rod 311, sealing ring 21 and the push rod 311 and 1 inner wall of container for being set with sealing ring 21
It is fitted close.Certain hydraulic fluid portion 2 can also be traditional piston, and piston outer wall is fitted close with 1 inner wall of container.Since production is lived
Plug is more troublesome, and needs to determine piston on smaller push rod 311, installation is caused to bother, also to piston in production process
Size is strict with, and also more using elastic rubber material, and the annular groove for installing sealing ring 21 is opened up on push rod 311
, produced sealing ring 21, so that it may be installed so that sealing ring 21 is sleeved on realization in annular groove, simplified installation steps, in annular groove
Wall plays the role of limit to sealing ring 21, so that sealing ring 21 push rod 311 will not generate relatively relatively during push
Displacement.
In order to enable sealing effect is more preferable, sealing ring 21 at least there are two, all sealing rings 21 are sleeved on push rod side by side
On 311, sealing ring 21 is O-shaped, and sealing ring 21 is made of silica gel material.
In order to realize the detachable of driving portion 3 and hydraulic fluid portion 2, nut 312 is threaded on a connector sleeve 10, connection
Set 10 is threaded on container 1.(this is the mounting means of nut 312 and container 1)
The operation principle of the present embodiment：When carrying out a positive pressure, rotary nut 312, push rod 311 moves, close to gear
The gear shaft shoulder 411 of slot 412 is squeezed into gear slot 412, sends out sound, prompts a positive pressure success, while gear slot 412
Position-limiting action of the inner wall to the gear shaft shoulder 411 so that push rod 311 can be stabilized to designated position, and realization, which is sent out, to be once just pressed into
Work(enables push rod 311 to be stabilized to corresponding position while prompt, ensure that the one of a positive pressure pressure is qualitative, to meet one
Secondary positive pressure is highly necessary asked really, meets needs so that more convenient to use.When needing secondary positive pressure, rotary nut 312 pushes away
Bar 311 continues to move to infusion pipeline 5, and the gear shaft shoulder 411 far from gear slot 412 is squeezed into gear slot 412, sends out sound
Sound prompts secondary positive pressure success, while 412 inner wall of gear slot realizes that push rod 311 limits by the position-limiting action to the gear shaft shoulder 411
Position extend into the length in container 1 (container 1 is tubulose, or special-shaped hollow structure etc.) to secondary positive pressure push rod 311,
Realize secondary positive pressure.When needing positive pressure three times, rotary nut 312 realizes that 311 maximum of push rod can extend into container 1
Length is prompted without sound at this time, but since nut 312 cannot continue turn, can also be given user's prompt, be carried
Show that push rod 311 reaches the position of positive pressure three times.
Embodiment 4：
The present embodiment is differed only in embodiment 1：Change on driving portion 3 and displacement instruction unit 4, driving portion
3 no longer use the manual actuation of 312 form of nut, and the automatically controlled driving used, certain displacement instruction unit 4 also change therewith.
As shown in figure 5, driving portion 3 includes：Push rod 311 and propulsion electric machine 322, have stretched into push rod 311 in container 1,
Push rod 311 is connected to the hydraulic fluid portion 2 in container 1, and push rod 311 is connected to the output of the propulsion electric machine 322 outside container 1
End, propulsion electric machine 322 are mounted on container 1.
Displacement instruction unit 4 includes：Motor driver, controller and display, motor driver and 322 electricity of propulsion electric machine
Connection, motor driver are connected with controller, and display is connected to controller, and controller is for controlling stretching for propulsion electric machine 322
Go out length, display is used to show the designated position where hydraulic fluid portion 2.
The operation principle of the present embodiment：This push rod 311 stretches to the length in container 1 and is controlled by controller, controller control
The working time of propulsion electric machine 322 processed can control the extended length of propulsion electric machine 322, and then control the propulsion of push rod 311
Length, display show the designated position that the elongation designated length rear push-rod 311 of propulsion electric machine 322 reaches, that is, corresponding
Gear, the aspect propulsion of push rod 311 also achieve and both shifted each gear onto to push rod 311 and prompted or reached control
Push rod 311 arrives corresponding designated position, and program is known procedure, but is realized by the interactively of hardware and push rod 311 above-mentioned
Function facilitates although cost increases and promotes push rod 311, cannot be the presence for smearing its advantage of going out because of disadvantage.
Embodiment 5：
As shown in Figures 1 to 6, a kind of remaining needle is present embodiments provided, including：Syringe needle, infusion pipeline 5 and such as implementation
Positive depressor described in example 1 to embodiment 4；
Infusion pipeline 5 includes：Extension tube 51, infusion connector 52 and liquid stopping clamp 53,51 one end of extension tube are connected to syringe needle,
51 other end of extension tube is connected to 52 one end of infusion connector, and 52 other end of infusion connector is used to be connected to infusion apparatus, positive depressor
Container 1 is connected to infusion connector 52, and the liquid stopping clamp 53 for being opened and closed extension tube 51 is equipped in extension tube 51.
Embodiment 6：
As shown in fig. 6, the present embodiment and embodiment 1 differ only in：The structure in hydraulic fluid portion is different.
Hydraulic fluid portion 2 includes：Sealing ring, ring set are located in push rod on the end in container, sealing ring and suit
The push rod of sealing ring is fitted close with container inner wall.
Embodiment 7：
As shown in Fig. 7 and Fig. 9, the present embodiment provides a kind of positive pressure testers, including：Pedestal, gauge line and company
Siphunculus offers water level storehouse and communicating passage in pedestal, and base top surface is recessed to form sink, and communicating passage connects with water level storehouse
Lead to and communicating pipe be installed on pedestal, communicating pipe one end be connected to communicating passage, communicating pipe, the other end was for being connected to remaining needle
Extension tube is equipped with connector on pedestal, and connector is located at one end that communicating passage deviates from communicating pipe, and connector is for gauge line
It is inserted into, gauge line is connected to after being inserted into connector with communicating passage.It is removable with pedestal by connector realization to be equivalent to gauge line
Connection is unloaded, connector is truncated cone for the jack that gauge line is inserted into, and jack top is more than jack bottom end, ensures that gauge line can be suitable
Profit is inserted into, and gauge line fits together with connector inner wall after insertion.
The present embodiment also provides a kind of positive pressure weight testing method based on above-mentioned positive pressure tester, includes the following steps：
Step 1: air in emptying remaining needle：First, the syringe needle in extension tube is removed；Then, liquid stopping clamp is opened；After again,
The syringe needle of syringe is inserted into the calparine cap on infusion connector；Finally, water is injected into infusion pipeline using syringe, make
It obtains water to emerge from the end of extension tube connection syringe needle, air in remaining needle is discharged；It (avoids having air in remaining needle and influencing positive pressure
The test of amount)
Step 2: installation remaining needle：The end sleeve that extension tube is connected to syringe needle is realized remaining needle and is connected to outside communicating pipe
Pipe is connected to；(installation for realizing remaining needle and positive pressure tester)
Step 3: emptying gauge line：First：Ensure that gauge line is detached from connector；Then, using syringe to connection
Water filling in pipe, communicating passage and gauge line ensures that water is overflowed from sink, to ensure there be not air in gauge line in pedestal；Finally,
Gauge line is inserted into connector, sink bottom surface position is higher than gauge line bottom surface position, ensures that gauge line is inserted into
There is certain water to enter in gauge line afterwards；
Step 4: zeroing：Using syringe by the water extraction in gauge line or the water filling into gauge line, until in gauge line
Water level reaches zero graduation or low scale；
Step 5: closing liquid stopping clamp；(liquid stopping clamp is closed, realizes that there are pressure difference in liquid stopping clamp both sides in follow-up measure, and protect in this way
After card has certain pressure difference, water can slowly enter gauge line side, the measurement to the continuous positive pressure after positive pressure be realized, if do not had
There is liquid stopping clamp to be then unable to measure)
Step 6: extracting syringe, calparine cap makes infusion connector that closed state be kept (to be realized by calparine cap material itself
Self-closed)；
Step 7: setting the n-th positive pressure that current detection is positive depressor；
Step 8: recording the initial liquid level h0 of water in gauge line；
Step 9: pushing positive depressor so that positive depressor realizes n-th positive pressure, observes water in gauge line after realization immediately
Liquid level h1；
Step 10: after waiting for a period of time (such as：After 2 minutes to 15 minutes), the liquid level of water in gauge line is observed again
h2；
Step 11: drawing a conclusion：
Judge whether n-th positive pressure propulsive force is qualified：Judge whether h1-h0 is more than or equal to rating requirements value H1, if so,
Judge n-th positive pressure propulsive force for qualification；If it is not, then judging n-th positive pressure propulsive force to be unqualified；
Whether continuous positive pressure is qualified after judging n-th positive pressure：Judge whether h2-h1 is more than or equal to rating requirements value H2,
If so, judging that continuous positive pressure is qualification after n-th positive pressure；If it is not, continuous positive pressure does not conform to after then judging n-th positive pressure
Lattice；
Step 12: life n=n+1；
Step 13: setting positive pressure number that positive depressor can be realized as N, N is integer, judges whether n is more than N, if so,
Carry out step 14；If it is not, then carrying out step 8；
Step 14: terminating detection.
Embodiment 8：
As shown in FIG. 8 and 9, the present embodiment provides a kind of positive pressure testers, including：Pedestal, gauge line and company
Siphunculus offers communicating passage in pedestal, the communicating pipe being connected to communicating passage bottom end is equipped on pedestal, is pacified on pedestal
Equipped with the gauge line being connected to communicating passage top.Gauge line is to mark graduated capillary.Quite remote gauge line opposite base
It is fixed
Since positive pressure tester structure is different, cause step 3 and step 4 concrete operations flow different.
The present embodiment also provides a kind of positive pressure weight testing method based on above-mentioned positive pressure tester, includes the following steps：
Step 1: air in emptying remaining needle：First, the syringe needle in extension tube is removed；Then, liquid stopping clamp is opened；After again,
The syringe needle of syringe is inserted into the calparine cap on infusion connector；Finally, water is injected into infusion pipeline using syringe, make
It obtains water to emerge from the end of extension tube connection syringe needle, air in remaining needle is discharged；It (avoids having air in remaining needle and influencing positive pressure
The test of amount)
Step 2: installation remaining needle：The end sleeve that extension tube is connected to syringe needle is realized remaining needle and is connected to outside communicating pipe
Pipe is connected to；(installation for realizing remaining needle and positive pressure tester)
Step 3: emptying gauge line：Using syringe water filling into communicating pipe, communicating passage and gauge line, ensure water
It emerges at the top of from gauge line, and ensures do not have bubble (by observing in gauge line whether have bubble, to there is bubble to continue to note in gauge line
Water, so that it may all bubbles to be discharged)；
Step 4: zeroing：Using syringe by gauge line water extract out, until gauge line in water level reach zero graduation or
Low scale；(convenient follow-up reading, because can be to avoid because of first time positive pressure when not in the place close to initial position, cause each
Positive pressure, which is not tested also, to be occurred as soon as water in gauge line and has expired phenomenon, causes subsequent positive pressure test that can not test, and is returned to zero
This phenomenon is just evaded)
Step 5: closing liquid stopping clamp；(liquid stopping clamp is closed, realizes that there are pressure difference in liquid stopping clamp both sides in follow-up measure, and protect in this way
After card has certain pressure difference, water can slowly enter gauge line side, the measurement to the continuous positive pressure after positive pressure be realized, if do not had
There is liquid stopping clamp to be then unable to measure)
Step 6: extracting syringe, calparine cap makes infusion connector that closed state be kept (to be realized by calparine cap material itself
Self-closed)；
Step 7: setting the n-th positive pressure that current detection is positive depressor；
Step 8: recording the initial liquid level h0 of water in gauge line；
Step 9: pushing positive depressor so that positive depressor realizes n-th positive pressure, observes water in gauge line after realization immediately
Liquid level h1；
Step 10: after waiting for a period of time (such as：After 2 minutes to 15 minutes), the liquid level of water in gauge line is observed again
h2；
Step 11: drawing a conclusion：
Judge whether n-th positive pressure propulsive force is qualified：Judge whether h1-h0 is more than or equal to rating requirements value H1, if so,
Judge n-th positive pressure propulsive force for qualification；If it is not, then judging n-th positive pressure propulsive force to be unqualified；
Whether continuous positive pressure is qualified after judging n-th positive pressure：Judge whether h2-h1 is more than or equal to rating requirements value H2,
If so, judging that continuous positive pressure is qualification after n-th positive pressure；If it is not, continuous positive pressure does not conform to after then judging n-th positive pressure
Lattice；
Step 12: life n=n+1；
Step 13: setting positive pressure number that positive depressor can be realized as N, N is integer, judges whether n is more than N, if so,
Carry out step 14；If it is not, then carrying out step 8；
Step 14: terminating detection.
The detection after being set to each gear of the positive depressor of remaining needle is realized, ensures that positive depressor can in the remaining needle of output
Meet using stable requirement, provides examination criteria.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (10)
1. a kind of positive depressor, which is characterized in that including：Container, driving portion and displacement instruction unit, container is for being connected to infusion
On pipeline, driving portion is installed on container, driving portion is used to drive the hydraulic fluid portion in container in separate or close infusion
The side of pipeline moves upwards, and displacement instruction unit is equipped on container, hydraulic fluid portion or driving portion, and displacement instruction unit is used to indicate pressure
The position in liquid portion, and displacement instruction unit can stablize in hydraulic fluid portion in designated position.
2. positive depressor according to claim 1, which is characterized in that driving portion includes：Push rod and nut, stretch in container
Entering has push rod, and push rod is connected to the hydraulic fluid portion in container, and push rod is connected to the nut outside container, nut and container spiral shell
Line connects.
3. positive depressor according to claim 2, which is characterized in that displacement instruction unit includes：An at least gear shaft shoulder, push rod
Outer wall is protruding with the gear shaft shoulder, and container offers the pilot hole moved for push rod, and pilot hole inner wall depression forms the gear of annular
Slot, gear slot and the gear shaft shoulder are located at the side that hydraulic fluid portion deviates from infusion pipeline, and each gear shaft shoulder can be buckled with gear slot
Formula connects.
4. positive depressor according to claim 2, which is characterized in that displacement instruction unit includes：An at least gear shaft shoulder, push rod
Outer wall depression forms gear slot, and container offers the pilot hole moved for push rod, and pilot hole inner wall is protruding with the gear shaft shoulder, gear
The shaft shoulder and gear slot are respectively positioned on the side that hydraulic fluid portion deviates from infusion pipeline, and each gear shaft shoulder can connect with gear slot buckle-type
It connects.
5. positive depressor according to claim 2, which is characterized in that displacement instruction unit includes：Gear protrusion and shift feeling are answered
Ring, push rod outer wall protrude gear protrusion, and container offers the pilot hole moved for push rod, and pilot hole inner wall is protruding with shift feeling
Ying Huan, gear protrusion and gear inductance loop are respectively positioned on the side that hydraulic fluid portion deviates from infusion pipeline, and gear protrusion can cross over shift feeling
Ying Huan, the face that gear protrusion is used to contact with gear inductance loop are the conical surface.
6. positive depressor according to claim 5, which is characterized in that hydraulic fluid portion includes：Sealing ring, ring set is in push rod
On the end in container, sealing ring and push rod and the container inner wall tight fit for being set with sealing ring；Sealing ring is at least
There are two, all sealing rings are sleeved on push rod side by side, and sealing ring is O-shaped, and sealing ring is made of silica gel material.
7. positive depressor according to claim 5, which is characterized in that hydraulic fluid portion includes：Sealing column, sealing column is for stopping liquid
Body enters push rod side from infusion pipeline side, and sealing column is made of elastic material.
8. a kind of remaining needle, which is characterized in that including：Syringe needle, infusion pipeline and as described in any one of claim 1 to 7
Positive depressor；
Infusion pipeline includes：Extension tube, infusion connector and liquid stopping clamp, extension tube one end are connected to syringe needle, the extension tube other end
It is connected to the container of positive depressor, the container other end of positive depressor is connected to infusion connector, and infusion connector is used to be connected to infusion apparatus,
Liquid stopping clamp for being opened and closed extension tube is installed in extension tube.
9. a kind of positive pressure tester, which is characterized in that including：Pedestal, gauge line and communicating pipe, connection was offered in pedestal
Channel is equipped with the communicating pipe being connected to communicating passage bottom end on pedestal, and communicating pipe, the other end was for being connected to prolonging for remaining needle
Long tube is equipped with the gauge line being connected to communicating passage top on pedestal.
10. a kind of positive pressure weight testing method, which is characterized in that include the following steps：
Step 1: air in emptying remaining needle：First, the syringe needle in extension tube is removed；Then, liquid stopping clamp is opened；After again, it will note
The syringe needle of emitter is inserted on infusion connector；Finally, water is injected into remaining needle using syringe so that water is from extension tube one end
Portion emerges, and air in remaining needle is discharged；
Step 2: installation remaining needle：The end sleeve that extension tube is connected to syringe needle realizes that remaining needle connects with communicating pipe outside communicating pipe
It is logical；
Step 3: emptying gauge line：Using syringe water filling into communicating pipe, communicating passage and gauge line, ensure water from meter
It emerges at the top of buret, and ensures do not have bubble in gauge line；
Step 4: zeroing：The water in gauge line is extracted out using syringe, until water level reaches zero graduation or low quarter in gauge line
Degree；
Step 5: closing liquid stopping clamp；
Step 6: extracting syringe, calparine cap makes infusion connector keep closed state；
Step 7: setting the n-th positive pressure that current detection is positive depressor, life n is equal to 1；
Step 8: recording the initial liquid level h0 of water in gauge line；
Step 9: pushing positive depressor so that positive depressor realizes n-th positive pressure, observes the liquid level of water in gauge line after realization immediately
h1；
Step 10: after waiting for a period of time, the liquid level h2 of water in gauge line is observed again；
Step 11: drawing a conclusion：
Judge whether n-th positive pressure propulsive force is qualified：Judge whether h1-h0 is more than or equal to rating requirements value H1, if so, judging
N-th positive pressure propulsive force is qualification；If it is not, then judging n-th positive pressure propulsive force to be unqualified；
Whether continuous positive pressure is qualified after judging n-th positive pressure：Judge whether h2-h1 is more than or equal to rating requirements value H2, if so,
Continuous positive pressure is qualification after then judging n-th positive pressure；If it is not, continuous positive pressure is unqualified after then judging n-th positive pressure；
Step 12: life n=n+1；
Step 13: setting positive pressure number that positive depressor can be realized as N, N is integer, judges whether n is more than N, if so, carrying out
Step 14；If it is not, then carrying out step 8；
Step 14: terminating detection.
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| CN201721413825 | 2017-10-28 | ||
| CN2017214138251 | 2017-10-28 |
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| CN201810732916.4A Pending CN108744147A (en) | 2017-10-28 | 2018-07-05 | Positive depressor, remaining needle, positive pressure tester and positive pressure weight testing method |
| CN201821066033.6U Active CN209092392U (en) | 2017-10-28 | 2018-07-05 | Positive depressor and the multiple positive pressure preventing thrombosis venous detaining needle comprising it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109602999A (en) * | 2018-12-04 | 2019-04-12 | 许克璞 | A kind of picc indwelling tube continues feed flow preventing clogging up device and its feed liquid method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744147A (en) * | 2017-10-28 | 2018-11-06 | 重庆科杰医疗设备有限公司 | Positive depressor, remaining needle, positive pressure tester and positive pressure weight testing method |
| CN110975061B (en) * | 2019-11-19 | 2021-09-10 | 山东省千佛山医院 | Puncture-preventing remaining needle capable of continuously supplying liquid |
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| CN209092392U (en) * | 2017-10-28 | 2019-07-12 | 重庆科杰医疗设备有限公司 | Positive depressor and the multiple positive pressure preventing thrombosis venous detaining needle comprising it |
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2018
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- 2018-07-05 CN CN201821066033.6U patent/CN209092392U/en active Active
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| JP2001017544A (en) * | 1999-07-05 | 2001-01-23 | Nissho Corp | Quantifiable transfusion set |
| CN205549143U (en) * | 2016-02-05 | 2016-09-07 | 昆山均强塑料科技有限公司 | Ration injection cylinder |
| CN106039466A (en) * | 2016-06-24 | 2016-10-26 | 重庆科杰医疗设备有限公司 | Multiple-time positive pressure thrombus preventing venous indwelling needle and thrombus preventing method thereof |
| CN209092392U (en) * | 2017-10-28 | 2019-07-12 | 重庆科杰医疗设备有限公司 | Positive depressor and the multiple positive pressure preventing thrombosis venous detaining needle comprising it |
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| CN109602999A (en) * | 2018-12-04 | 2019-04-12 | 许克璞 | A kind of picc indwelling tube continues feed flow preventing clogging up device and its feed liquid method |
| CN109602999B (en) * | 2018-12-04 | 2021-04-27 | 许克璞 | Continuous liquid supply anti-blocking device for picc indwelling pipe and liquid supply method thereof |
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|---|---|
| CN209092392U (en) | 2019-07-12 |
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