CN207263475U - A kind of device for discharging vacuum blood collection tube residual pressure - Google Patents
A kind of device for discharging vacuum blood collection tube residual pressure Download PDFInfo
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- CN207263475U CN207263475U CN201720120290.2U CN201720120290U CN207263475U CN 207263475 U CN207263475 U CN 207263475U CN 201720120290 U CN201720120290 U CN 201720120290U CN 207263475 U CN207263475 U CN 207263475U
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- sebific duct
- puncture needle
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Abstract
The utility model discloses a kind of device for discharging vacuum blood collection tube residual pressure, which includes：Puncture needle, sebific duct, valve, air filter, cleaning swab, sampling syringe, DIL syringes, dilution (DIL) bucket, power plant module.The utility model is used for the residual pressure for discharging vacuum blood collection tube, and puncture needle structure is simple, and processing technology is simple, and easy to manufacture, cost is low；Outer surface is readily cleaned, will not be in surface adhesion cap test tube chip, so that influencing performance, complete machine fluid system；The puncture needle of opposing outer face air bleed slot, deflates reliable；Puncture needle is low to the structural requirement for cleaning swab, reduces design threshold, and reliability is high, and because the contour structures of no air bleed slot, puncture needle complexity influence, leakage splashing liquid probability is extremely low in puncture needle cleaning process.
Description
Technical field
Medical instruments field is the utility model is related to, relates generally to a kind of device for discharging vacuum blood collection tube residual pressure.
Background technology
Active detection class medical instrument, such as cellanalyzer, need to draw quantitative blood sample from vacuum blood collection tube,
The count measurement of various parameters project is carried out after instrument internal dilution again.Active detection class medical instrument is according to input mode, i.e.,
Whether operating personnel need to open vacuum blood collection tube cap test tube, are divided into auto injection pattern, closing sample introduction pattern, open into original mold
Formula, open sample introduction pattern need manual unlocking cap test tube, and auto injection pattern and closing sample introduction pattern are to be not required to uncap, sampling
Pin is directed through cap test tube, and sampling needle insertion blood sample liquid level certain depth below, is sampled.Before this, detection machine
The operating personnel of structure (such as hospital) are taken a blood sample using vacuum blood collection tube from detection object (such as examinee, patient), and principle is
Using the negative pressure of vacuum blood collection tube, because vacuum blood collection tube characteristic and each operating personnel's blood sampling volume differ, cause vacuum after sampling
The still remaining certain negative pressure of heparin tube.Therefore closing sample introduction pattern, the active detection medical instrument of auto injection pattern (are lifted below
Exemplified by cellanalyzer) sampling needle or sampling mechanism need to possess the function of release residual pressure, otherwise sampling is fixed every time
Amount is inaccurate, and repeatability is bad, and cellanalyzer items measurement parameter is inaccurate, poor repeatability.
As shown in Figure 1, the puncture needle that United States Patent (USP) US19970815011 is provided is two-tube pin, a pipe is heparin tube 10,
Another pipe release residual pressure solenoid 20.Fully, reliably, its shortcoming is complicated for construction, cost for the two-tube pin release pressure of the puncture
Height, and puncture needle from vacuum blood collection tube adopted blood sample after, it is necessary to cleaned to it, puncture needle cleaning one title of design
Be the structural member of cleaning swab (probe-wipe housing), cleaning swab using venturi principle to puncture needle outer wall and
Inner wall is cleaned, in case current blood sample brings pollution to next sample.Two-tube puncture needle causes clear because it is double pipe structure
The structure complexity for washing swab is high.
As shown in Fig. 2, Japanese certain medical instrument manufacturer's money middle and high end blood cell analysis uses single tube puncture needle, needle body
Including sampling channel S1 and release residual pressure passage S2.The single tube puncture needle, it is abundant, reliable excellent also to possess release pressure
Point, but its structure is also more complicated than the two-tube pin of United States Patent (USP) US19970815011, and manufacturing process is complicated, it is high to require.And its
Pin surface structure is mostly ellipse, it is necessary to which special designing cleans the matched use of swab.
As shown in Figure 3 and Figure 7, most of China medical instrument manufacturer auto injection pattern, closing sample introduction pattern blood are thin
Born of the same parents' analyzer puncture needle structure is single tube puncture needle, and there is 2-3 bar deflation grooves T1 in needle body outer surface.The advantage and disadvantage of the puncture needle compared with
There is simple structure, more open mould for Japanese certain medical instrument manufacturer's single tube puncture needle, United States Patent (USP) US19970815011
Formula sampling needle (no air bleed slot) is complicated；But its deflation is ineffective, and the cap test tube chip of air bleed slot is attached in piercing process not
Easy cleaning, also there are certain requirements cleaning swab.
Therefore, the prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide one kind release vacuum blood collection tube is remaining
The device of pressure, it is intended to solve existing puncture needle construction complexity, manufacture is of high cost, manufacturing process is complicated, deflation is ineffective, clear
The problem of washing inconvenience.
The technical solution of the utility model is as follows：
A kind of device for discharging vacuum blood collection tube residual pressure, including：Puncture needle, sebific duct, valve door, air filter,
Clean swab, sampling syringe, DIL syringes, dilution (DIL) bucket, power plant module；The puncture needle by the first sebific duct with
The common port connection of first valve, the first valve normally open end connects the normal-closed end of the second valve, the first valve by the second sebific duct
Normal-closed end connected by the 9th sebific duct with air filter, air filter is placed in air；Second valve normally open end passes through
3rd sebific duct is connected with cleaning swab inlet；Second valve common port is connected by end connector on the 5th sebific duct and sampling syringe
Connect；End connector is connected by the 6th sebific duct with the 3rd valve normal-closed end under the sampling syringe, and the 3rd valve common port passes through
7th sebific duct is connected with the 4th valve normal-closed end, and the 4th valve common port is connected by the 8th sebific duct with DIL syringes；4th valve
Door normally open end connects dilution (DIL) bucket by the tenth sebific duct；The cleaning swab liquid outlet passes through the 4th sebific duct and the 5th valve
Door connection, the 5th valve other end are connected to power plant module by the 11st sebific duct.
The power plant module is liquid pump, pressurized tank or vacuum tank.
The utility model another technical solution is as follows：
A kind of device for discharging vacuum blood collection tube residual pressure, including：Puncture needle, sebific duct, valve door, cleaning swab, adopt
Sample syringe, dilution bucket, power plant module；The puncture needle is conventional single tube puncture needle, and needle tip is tapered；The puncture needle
6th valve is connected by the 12nd sebific duct, the 6th valve other end passes through the 13rd sebific duct connecting T-shaped connector right angle end；It is T-shaped
Connector leads directly to one of end and connects the 7th valve by the 14th sebific duct, and the 7th valve other end connects second by the 15th sebific duct
Power plant module, power plant module produces negative pressure, and stores negative pressure；T connector, which leads directly to the two of end and connected by the 16th sebific duct, to be sampled
Square joint on syringe；Square joint connects the 8th valve normal-closed end by the 19th sebific duct under sampling syringe, and the 8th valve is normal
Beginning connects cleaning swab inlet by the 20th sebific duct, and the 8th valve common port connects the 9th valve by the 22nd sebific duct
Door normal-closed end, the 9th valve common port connect DIL by the 23rd sebific duct and dilute liquid syringe, and the 9th valve normally open end passes through
21st sebific duct connects dilution (DIL) bucket；Tenth valve connects cleaning swab liquid outlet, the tenth valve by the 17th sebific duct
The door other end connects the first power plant module by the 18th sebific duct.
The power plant module is pressurized tank.
Beneficial effect：The residual pressure for being used to discharge vacuum blood collection tube of the utility model, and puncture needle structure is simple,
Processing technology is simple, and easy to manufacture, cost is low；Outer surface is readily cleaned, will not be in surface adhesion cap test tube chip, so that influencing
Performance, complete machine fluid system；The puncture needle of opposing outer face air bleed slot, deflates reliable；Puncture needle will to cleaning the structure of swab
Ask low, reduce design threshold, and reliability is high, because the contour structures of no air bleed slot, puncture needle complexity influence, puncture needle cleaning
During leakage splashing liquid probability it is extremely low.
Brief description of the drawings
Fig. 1 is the puncture needle structure figure that existing United States Patent (USP) US19970815011 is provided.
Fig. 2 uses single tube puncture needle structure for existing Japanese certain medical instrument manufacturer's money middle and high end blood cell analysis
Figure.
Fig. 3 is existing most of China medical instrument manufacturer's auto injection pattern, closing sample introduction pattern blood cell analysis
Instrument puncture needle structure figure.
Fig. 4 is the puncture needle structure figure of the utility model.
Fig. 5 is a kind of structure drawing of device of embodiment of the utility model.
Fig. 6 is the structure drawing of device of the utility model another kind embodiment.
Fig. 7 closes sample introduction pattern cellanalyzer puncture needle structure for existing most of China medical instrument manufacturer
Figure.
Embodiment
The utility model provide it is a kind of discharge vacuum blood collection tube residual pressure device, for make the purpose of this utility model,
Technical solution and effect are clearer, clear and definite, and the utility model is further described below.It should be appreciated that this place is retouched
The specific embodiment stated only to explain the utility model, is not used to limit the utility model.
As shown in figure 4, the device for the release vacuum blood collection tube residual pressure that the utility model embodiment one provides includes：Clearly
Wash swab 1, puncture needle 2, air filter 3, sampling syringe 4, DIL syringes 5, dilution bucket, power plant module, some glue
Pipe TP and several valves LV.Described device is primarily adapted for use in puncture needle as shown in Figure 5, the puncture needle provided in the present embodiment
2 be conventional single tube puncture needle, and simple in structure, needle tip is tapered, has puncture ability, can effectively penetrate cap test tube.Coordinate
The concrete structure of the device of the puncture needle 2 is：
The puncture needle 2 is connected by the first sebific duct TP01 with the common port of the first valve LV01, and the first valve LV01 is normal
Beginning by the normal-closed end of second sebific duct TP02 the second valves of connection LV02, the normal-closed end of the first valve LV01 pass through sebific duct with it is empty
Air filter 3 connects, and air filter is placed in air；The second valve LV02 normally open ends are by the 3rd sebific duct TP03 and clearly
Wash the inlet connection of swab 1；The second valve LV02 common ports are by the 5th sebific duct TP05 with being terminated on sampling syringe 4
Head connection；End connector is connected by the 6th sebific duct TP06 with the 3rd valve LV03 normal-closed ends under the sampling syringe, and described
Three valve LV03 common ports are connected by the 7th sebific duct TP07 with the 4th valve LV04 normal-closed ends, the 4th valve LV04 common ports
It is connected by the 8th sebific duct TP08 with DIL syringes 5；4th valve LV04 normally open ends are diluted by the tenth sebific duct TP10 connections
Liquid bucket DIL；The cleaning swab liquid outlet is connected by the 4th sebific duct TP04 with the 5th valve LV05, and the 5th valve LV05 is another
One end is connected to power plant module by the 11st sebific duct TP11.The power plant module is liquid pump or vacuum tank.
A kind of operating process of fluid piping system, specifically includes following steps：
Step S1：Fluid piping system initial state is full of dilution DIL (valve LV01 to air filtration for fluid system
Device sebific duct is air), each syringe is in initial bit；
Step S2：Valve LV02, LV03, LV04 are powered, and DIL syringe plungers down move, by puncture needle and the first glue
Pipe TP01 is emptied, and controls the stroke that plunger down moves, and ensures the second sebific duct TP02 close to a bit of sebific duct in valve LV01 ends
Liquid is also emptied；
Step S3：Motion (not shown) drives puncture needle insertion vacuum blood collection tube appropriate depth, then valve LV01
It is powered, vacuum blood collection tube connection air, discharges its internal residual pressure.Its internal residual pressure is vacuum, then when discharging pressure,
Air-flow enters vacuum blood collection tube from air, will not cause liquid outflow；
Step S4：Puncture needle is from bottom to upper, and valve LV03, LV04, which are powered, to be opened, and DIL syringe plungers are up transported
Dynamic, row's certain volume dilution cleaning puncture needle outer wall, at the same time valve LV05 energizations are opened, liquid pump operation, will have been cleaned
The liquid of puncture needle outer wall is taken away.Puncture needle move to it is upper after, puncture needle lower end needle point be in cleaning swab inside, valve
LV02, LV03, LV04, which are powered, to be opened, and DIL syringe plungers up move, row's certain volume dilution cleaning puncture needle inner wall,
Ensure that valve LV02 is full of dilution to puncture needle pipeline, valve, pin；
Step S5：Valve LV02, which is powered, to be opened, and sampling syringe plunger down moves, and ensures that the suction of puncture needle lower end is appropriate
Air, with the blood sample that separates dilution He will gather；
Step S6：Whole to discharge vacuum blood collection tube residual pressure after the completion of step S4, collection blood sample whole flow process terminates.
Referring to Fig. 6, the utility model is also provided separately based on puncture needle that is routine, simple in structure, having puncture ability
A kind of outer embodiment device.The device for the release vacuum blood collection tube residual pressure that the embodiment two provides includes：Cleaning swab 1,
Puncture needle 2, sampling syringe 4, DIL syringes 5, the first power plant module, the second power plant module, some sebific duct TP and several
Valve LV.The device that the embodiment two provides is also to be primarily adapted for use in conventional single tube puncture needle as shown in Figure 5.It is specifically tied
Structure is：
The puncture needle 2 passes through by the 6th valve LV06 of the 12nd sebific duct TP12 connections, the 6th valve LV06
13 sebific duct TP13, T connector, the 14th sebific duct TP14 and the 16th sebific duct TP16 connect respectively connection the 7th valve LV07 and
Sampling syringe 4；The 7th valve LV07 passes through the 15th sebific duct TP15 the second power plant modules of connection, second power
Module produces negative pressure and stores negative pressure；The sampling syringe 4 is normal by the 8th valve LV08's of the 19th sebific duct TP19 connections
Swab inlet, the 8th valve LV08 are cleaned in closed end, the 8th valve LV08 normally open ends by the 20th sebific duct TP20 connections
Common port passes through the 20th by the 9th valve LV09 normal-closed ends of the 22nd sebific duct TP22 connections, the 9th valve LV09 common ports
Three sebific duct TP23 connections DIL dilute liquid syringe, and the 9th valve LV09 normally open ends are diluted by the 21st sebific duct TP21 connections
Liquid (DIL) bucket；Tenth valve LV10 cleans swab liquid outlet, the tenth valve LV10 other ends by the 17th sebific duct TP17 connections
By the 18th sebific duct TP18 the first power plant modules of connection, first power plant module produces negative pressure and stores negative pressure.
The operating process of the fluid piping system, specifically includes following steps：
Step S1：Fluid piping system initial state is to be full of dilution in fluid system, and DIL syringes are in initial bit；
The liquid grain of very little is only adhered in 4th sebific duct TP04 for air or inner wall.
Step S2：First power plant module and the second power plant module establish certain negative pressure, be typically chosen -20 KPa-50KPa it
Between；It is preferred that -40KPa；Valve LV01, LV02 are powered, using negative pressure by puncture needle, sebific duct TP01, TP02, TP03 and TP04
Liquid is emptied；
Step S3：Motion (not shown) drive puncture needle insertion vacuum blood collection tube appropriate depth, then valve LV01,
LV02 is powered, and vacuum blood collection tube connection air, discharges its internal residual pressure；First power plant module and the second power plant module
For pressurized tank, the pressurized tank is provided with 1 two-way valve connection air.
Step S4：Puncture needle is from bottom to upper, and valve LV04, which is powered, to be opened, and DIL syringe plungers up move, and discharge
Certain volume dilution cleans puncture needle outer wall, and at the same time pressurized tank establishes certain negative pressure, such as -40KPa, and valve LV05 is powered
Open, using negative pressure taken away the liquid for having cleaned puncture needle outer wall, puncture needle move to it is upper after, at the needle point of puncture needle lower end
Inside cleaning swab, valve LV01, LV03, LV04, which are powered, to be opened, and DIL syringe plungers up move, and discharge certain volume
Dilution cleans puncture needle inner wall, and discharges certain liq and enter pressurized tank, ensures valve LV02, sampling syringe to puncture
Needle tubing road, valve, pin are full of dilution；
Step S5：Valve LV01, which is powered, to be opened, and sampling syringe plunger down moves, and ensures that the suction of puncture needle lower end is appropriate
Air, with the blood sample that separates dilution He will gather；
Step S6：Whole to discharge vacuum blood collection tube residual pressure after the completion of step S5, collection blood sample whole flow process terminates.
Puncture needle structure is simple, and processing technology is simple, relatively manufactures, and cost is low.For the medical instrument service life, puncture
Pin belongs to wear-out part, and cost is low can effectively to reduce manufacturer and the use cost of user.Puncture needle outer surface is readily cleaned, will not
In surface adhesion cap test tube chip, so that influencing performance, complete machine fluid system.The puncture needle of opposing outer face air bleed slot, deflates
Reliably.
Puncture needle is low to the structural requirement for cleaning swab, reduces design threshold, and reliability is high, because of no air bleed slot, wears
The contour structures of pricker complexity influence, and leakage splashing liquid probability is extremely low in puncture needle cleaning process.
It should be appreciated that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
Say, can according to the above description be improved or converted, all these modifications and variations should all belong to the appended power of the utility model
The protection domain that profit requires.
Claims (6)
- A kind of 1. device for discharging vacuum blood collection tube residual pressure, it is characterised in that including：Puncture needle, sebific duct, valve, air Filter, cleaning swab, sampling syringe, DIL syringes, dilution bucket, power plant module；The puncture needle is that conventional single tube is worn Pricker, needle tip are tapered；The puncture needle is connected by the first sebific duct with the common port of the first valve, the first valve normally open end The normal-closed end of the second valve is connected by the second sebific duct, the normal-closed end of the first valve is connected by the 9th sebific duct and air filter Connect, air filter is placed in air；Second valve normally open end is connected by the 3rd sebific duct with cleaning swab inlet；Second valve Door common port is connected by the 5th sebific duct with end connector on sampling syringe；End connector passes through the 6th glue under the sampling syringe Tri- valve normal-closed ends of Guan Yu connect, and the 3rd valve common port is connected by the 7th sebific duct with the 4th valve normal-closed end, the 4th valve Door common port is connected by the 8th sebific duct with DIL syringes；4th valve normally open end connects dilution bucket by the tenth sebific duct；Institute The liquid outlet for stating cleaning swab is connected by the 4th sebific duct with the 5th valve, and the 5th valve other end is connected by the 11st sebific duct To power plant module.
- 2. the device of vacuum blood collection tube residual pressure is discharged according to claim 1, it is characterised in that the power plant module is Liquid pump, pressurized tank or vacuum tank.
- A kind of 3. device for discharging vacuum blood collection tube residual pressure, it is characterised in that including：Clean swab, puncture needle, sampling note Emitter, DIL syringes, the first power plant module, the second power plant module, some sebific ducts and several valves；The puncture needle is Conventional single tube puncture needle, needle tip are tapered；The puncture needle connects the 6th valve, the 6th valve by the 12nd sebific duct Connect the 7th valve of connection and sampling injections respectively by the 13rd sebific duct, T connector, the 14th sebific duct and the 16th sebific duct Device；7th valve connects the second power plant module by the 15th sebific duct, and second power plant module produces negative pressure and stores Negative pressure；The sampling syringe connects the normal-closed end of the 8th valve by the 19th sebific duct, and the 8th valve normally open end passes through 20th sebific duct connection cleaning swab inlet, the 8th valve common port are normally closed by the 22nd sebific duct the 9th valve of connection End, the 9th valve common port connect DIL by the 23rd sebific duct and dilute liquid syringe, and the 9th valve normally open end passes through the 20th One sebific duct connects dilution bucket；Tenth valve connects cleaning swab liquid outlet by the 17th sebific duct, and the tenth valve other end leads to Cross the 18th sebific duct and connect the first power plant module, first power plant module produces negative pressure and stores negative pressure.
- 4. the device of vacuum blood collection tube residual pressure is discharged according to claim 3, it is characterised in that the first power mould Block and the second power plant module are pressurized tank.
- 5. the device of vacuum blood collection tube residual pressure is discharged according to claim 4, it is characterised in that the pressurized tank is set There is 1 two-way valve connection air.
- 6. the device of vacuum blood collection tube residual pressure is discharged according to claim 4, it is characterised in that the pressurized tank is born Pressure is arranged between negative 20KPa to negative 50KPa.
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| CN201720120290.2U CN207263475U (en) | 2017-02-09 | 2017-02-09 | A kind of device for discharging vacuum blood collection tube residual pressure |
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| CN201720120290.2U CN207263475U (en) | 2017-02-09 | 2017-02-09 | A kind of device for discharging vacuum blood collection tube residual pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085019A (en) * | 2018-08-03 | 2018-12-25 | 迪瑞医疗科技股份有限公司 | A kind of sample processing apparatus and method |
| CN109738663A (en) * | 2019-02-15 | 2019-05-10 | 上海奥普生物医药有限公司 | It punctures sample adding device, puncture loading methods and specific protein analyzer |
| CN114414308A (en) * | 2022-03-28 | 2022-04-29 | 深圳市帝迈生物技术有限公司 | Sampling device and sampling method of sample analyzer |
| CN110579348B (en) * | 2019-09-05 | 2024-05-28 | 山东省医疗器械产品质量检验中心 | Puncture device, device and method for puncture chip falling test |
-
2017
- 2017-02-09 CN CN201720120290.2U patent/CN207263475U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085019A (en) * | 2018-08-03 | 2018-12-25 | 迪瑞医疗科技股份有限公司 | A kind of sample processing apparatus and method |
| CN109738663A (en) * | 2019-02-15 | 2019-05-10 | 上海奥普生物医药有限公司 | It punctures sample adding device, puncture loading methods and specific protein analyzer |
| CN110579348B (en) * | 2019-09-05 | 2024-05-28 | 山东省医疗器械产品质量检验中心 | Puncture device, device and method for puncture chip falling test |
| CN114414308A (en) * | 2022-03-28 | 2022-04-29 | 深圳市帝迈生物技术有限公司 | Sampling device and sampling method of sample analyzer |
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