CN208031217U - Filter device for negative pressure hemostix - Google Patents
Filter device for negative pressure hemostix Download PDFInfo
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- CN208031217U CN208031217U CN201820726647.6U CN201820726647U CN208031217U CN 208031217 U CN208031217 U CN 208031217U CN 201820726647 U CN201820726647 U CN 201820726647U CN 208031217 U CN208031217 U CN 208031217U
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- filtrate
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Abstract
The utility model provides a kind of filter device for negative pressure hemostix, including one end is equipped with blood inlet, the filter assemblies for being filtered to blood that the other end is equipped with the blood sampling tube body of filtrate (liquid and is arranged in heparin tube body；Wherein, filter assemblies include the different filtration modules formed from the blood inlet towards the filter membrane for enumerating setting on the direction of the filtrate (liquid successively in multiple apertures and the catch net being arranged on the outside of filtration module；Wherein, it is sequentially reduced from the blood inlet towards the aperture of the filter hole opened up on the filter membrane for enumerating setting successively on the direction of the filtrate (liquid in the filtration module.By said structure design, the utility model realizes while blood collection, completes serum filtering together and collects operation, simplifies blood constituent separating step, improve filter efficiency.
Description
Technical field
The utility model is related to experimental instrument and equipment technical fields, more specifically, more particularly to a kind of to be adopted for negative pressure
The filter device of blood.
Background technology
Negative pressure blood-taking tube is that life science tests the blood-taking device being commonly used, in the prior art, a kind of
Typical negative pressure blood-taking tube structure is as follows comprising and there are one the heparin tubes of tubular structure, and hose is connected on heparin tube,
The end of hose is connected with blood collection needles.Before use, determine blood sampling position (be usually limbs) first and carry out limbs binding,
Then the body surface for the blood sampling position for object of taking a blood sample being carried out disinfection and is pierced into blood collection needles blood sampling object unclamps limbs binding and uses
Bandage, blood is flowed under the suction function of heparin tube in pipe.
Traditional negative pressure blood-taking tube only has the function of that blood collection, blood contain, and certain blood tests are operated, are led to
Often need to centrifuge blood or be separated by filtration to obtain serum sample.Centrifugation needs centrifuge, price costly, to have
The animal farm (chicken farm, pig farm, cowboying factory) of this standby condition is less, and the blood sample after detaching need to be contained again it is another
Spare in one container, execute-in-place process is cumbersome.It is separated by filtration and needs collected blood in negative pressure blood-taking tube importeding into
In filter device, filtered blood sample is contained spare in another container again.Centrifuge and be separated by filtration serum/
Blood plasma, blood is required to be switched twice, not only complicated for operation, cumbersome, extends experimental period, is also easy to cause blood sample
Pollution, reduce the confidence level of experimental result.
Currently, Chinese document number, which is CN203852358U, discloses a kind of vacuum blood collection tube for detaching serum, the dress
It sets and carries out mutual structure positioning by using inner tube, outer tube and pipe lid, pipe lid and the rubber plug of heparin tube are integrally formed, from
And the separation of serum is realized, but since vacuum blood collection tube is negative-pressure type device, to realize the acquisition filter of blood, structure
It is necessary for an entirety, once separation, the structure both cannot achieve blood collection, it is even more impossible to realize the filtering of blood, it is seen then that should
Structure is inconvenient for use, and universality is poor.
Utility model content
To solve the deficiencies in the prior art, the utility model provides what a kind of using effect was not influenced by negative pressure harvester
Filter device, simple in structure, good filtration effect directly can directly filter the blood for object of taking a blood sample, and blood will not occur and fall
The filter device of flow phenomenon.
To realize that the technical purpose of the utility model, the utility model provide a kind of filtering dress for negative pressure hemostix
It sets, including：
One end is equipped with blood inlet, and the other end is equipped with the blood sampling tube body of filtrate (liquid；
The filter assemblies for being filtered to blood being arranged in heparin tube body；And
Wherein, the filter assemblies include：
Multiple apertures are different from the blood inlet towards the mistake for enumerating setting on the direction of the filtrate (liquid successively
The filtration module that filter membrane is formed；
It is arranged on the outside of the filtration module, for protecting catch net of the filter membrane from rupture；
Wherein, from the blood inlet towards enumerating setting successively on the direction of the filtrate (liquid in the filtration module
Filter membrane on the aperture of filter hole that opens up be sequentially reduced.
The multiple filtration film that aperture is sequentially reduced is enumerated setting by the utility model, so that blood plasma is successively filtered, filter effect
More preferably.
Wherein, each filter membrane in the filtration module is pleated structure.
The utility model sets filter membrane to pleated structure, can increase the filter area of unit area, increases filtering
Effect.
Wherein, the structure of the catch net is adapted with filtration module structure, is similarly pleated structure.
Catch net is likewise provided as pleated structure by the utility model, can make filtration module and the contact area of catch net
Increase, to protect filtration module not ruptured because of stress concentration.
Wherein, the filter device provided by the utility model for negative pressure hemostix further includes removable with the blood inlet end
The blood drawing component for unloading connection can be such that the filter device of the utility model is directly filtered to the blood in blood sampling subject, from
And ensure the promptness of blood sample filtering.
Wherein, the blood drawing component includes：
It is connected to the blood drawing hose at the blood inlet end, the activity of the filter device blood sampling of the utility model can be increased
Range；
Be arranged blood drawing hose end blood drawing syringe needle, directly with blood sampling object contact, acquisition filter blood.
Wherein, set on the blood sampling inboard wall of tube body there are two supporting frame, the both ends of filtration module and catch net respectively with
The connection with blood sampling inboard wall of tube body is realized in the connection of two supporting frames, and makes filter membrane from the blood inlet towards the filter
Arrangement is enumerated successively on the direction of liquid outlet.
Wherein, described two supporting frames can be arranged in heparin tube body, the both sides at blood inlet end.
Wherein, the upper wall in blood sampling tube body can be arranged in described two supporting frames, can also be arranged in blood sampling tube body
Side wall.
Wherein, described device further includes being arranged at blood inlet end, and blood is made to flow to the filtrate from the blood inlet
Export the half-duplex channel component being filtered；
Wherein, the half-duplex channel component includes：
It is arranged at the blood inlet end and positioned at the butt tube in the outside of the blood sampling tube body；
The check valve being arranged in butt tube.
Wherein, any structure that liquid one-way flowing may be implemented may be used in the one-way valve structures.
In particular, in the outside of the butt tube, or be provided with blood on the outside of the blood sampling tube body and flow to indicateing arm
Know.
In particular, the bleeding hose is detachably connected with the blood sampling tube body.
In particular, the blood inlet end of blood sampling tube body can be connect with commercially available any blood sampling hose, input end
Butt tube can be arranged to structure compatible with commercially available any blood sampling hose connection.
In particular, the filtrate (liquid end is detachably connected with negative pressure collecting device.
Wherein, the negative pressure collecting device can be it is any using it is preceding be negative pressure state, when blood sampling, in suction function
Under, the device of blood meeting automatic absorbing to tube body of taking a blood sample, such as vacuum blood collection tube.
In particular, the filtrate (liquid of blood sampling tube body provided by the utility model can be arranged to it is existing any negative
Press the compatible interface of collection device.
Preferably, the filtrate (liquid end is blood transfusion syringe needle, and by that will transfuse blood, syringe needle is inserted into negative pressure collecting device, is realized
The connection of blood sampling tube body and negative pressure collecting device.
It is further preferred that the filtrate (liquid end is bleeding hose, pass through realization blood sampling tube body and negative pressure collecting device
Connection, on the one hand can extend filtrate flow path, convenient for observation filtrate whether there is exception, on the other hand, filtering can be expanded
The scope of activities of device.
Those skilled in the art know that the filtration yield of different filter paper is different, and when filter paper filtration yield excess load, filtrate is different
Often, change colour, the utility model will be set as bleeding hose at filtrate (liquid end, increase the flow path of filtrate, convenient for observation
Filtrate changes and takes timely measure, and avoids filtrate contamination.
Preferably, the bleeding hose can realize blood sampling tube body and negative pressure collecting device with the blood transfusion needle combination
Connection.
Wherein, the blood sampling tube body that the utility model uses is the material of medical grade, for example, PP plastic blood samplings tube body or
Medical grade PVC plastic blood sampling tube body.
In particular, being equipped with flow control valve between the filtrate (liquid end and negative pressure collecting device.
Wherein, the flow control valve arrangement is using one kind, such as gate valve, ball valve or butterfly valve etc. in technology.
Advantageous effect：
1, the utility model enumerates setting formation by the way that the multiple filtration film that aperture is sequentially reduced is arranged in heparin tube body
Filtration module and catch net, so that blood plasma is successively filtered, enhance filter effect.
2, the blood inlet end of the utility model is realized while blood collection, one by being connect with blood collection assembly
And blood filtration operation is completed, to realize the purpose of simplified serum collection operating procedure.
3, half-duplex channel component is equipped at blood inlet end due to the utility model, when effectively preventing acquisition blood, blood
The phenomenon that liquid is flow backwards, safety are good.
4, the filtrate (liquid end of the utility model is connect with negative pressure hemostix, realizes the automatic collection and mistake of blood
Filter.
Description of the drawings
Fig. 1 is the structural schematic diagram of the filter device for negative pressure hemostix in the utility model embodiment 1；
Fig. 2 is the partial enlargement structural representation of A in the utility model embodiment 1；
Fig. 3 is pleated filtration membrane and the partial enlargement structural representation of catch net in the utility model embodiment 2；
Fig. 4 is the structural schematic diagram of the filter device for negative pressure hemostix in the utility model embodiment 3；
Fig. 5 is the enlarged structure schematic diagram of B in the utility model embodiment 3；
Fig. 6 is the structural schematic diagram of the filter device for negative pressure hemostix in the utility model embodiment 4；
Fig. 7 is the structural schematic diagram of the filter device for negative pressure hemostix in the utility model embodiment 4；
In figure, 1, blood sampling tube body, 11, blood inlet, 111, butt tube, 112, check valve, 1121, circulation passage, 1122,
Elastomeric element, 1123, sphere, 1124, elastic plate, 12, filtrate (liquid, 13, supporting frame；2 filter assemblies, 21, filtration module,
22, catch net, 23, adsorbed film；3, draw blood component, 31, blood drawing hose, 32, blood drawing syringe needle, 4, blood transfusion needle assembly, 41, sealing
Plug, 42, blood transfusion syringe needle, 5, flow control valve.
Specific implementation mode
The embodiment of the utility model is described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the utility model, but cannot be used for limiting the scope of the utility model.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term
The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
Indicate or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot
It is construed as a limitation of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot
It is interpreted as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1
As shown in Figure 1, the filter device provided by the utility model for negative pressure hemostix includes blood sampling tube body 1 and filtering
Component 2, wherein blood sampling tube body 1 includes the support that blood inlet 11, filtrate (liquid 12 and setting are taken a blood sample again on 1 inner wall of tube body
Framework 13；Filter assemblies 2 include multiple apertures it is different from the blood inlet towards on the direction of the filtrate (liquid successively
It enumerates the filtration module 21 of the filter membrane formation of setting and is arranged on the outside of the filtration module, for protecting filter membrane from broken
The catch net 22 split.
Specifically, any structure with space structure may be used in the structure of blood sampling tube body 1, in the utility model
Embodiment in, using the structure with elongated cylinder structure proximate, along the length direction of blood sampling tube body 1, the one of blood sampling tube body 1
End is opened up there are one blood inlet 11, opens up that there are one filtrate (liquid 12, blood autoblood imports in the other end of blood sampling tube body 1
11 are flowed into blood sampling tube body 1, then can exports from filtrate (liquid 12, filtrate (liquid 12 can directly by blood taking needle 4 and
Negative pressure hemostix connects, and can also be connect with negative pressure blood-taking tube by other equipment.
More specifically, blood sampling tube body 1 may be used, medical grade PP is integrally moulded to be made medical grade PP plastic blood sampling pipes
Medical grade PVC plastic blood sampling tube body is made using medical grade PVC is integrally moulded in body, or blood sampling tube body 1.Certainly, at this
In the other embodiment of utility model, blood sampling tube body 1 can also be made of glass.Blood sampling tube body 1 is an integral structure,
The structural strength and air-tightness of blood sampling tube body 1 can be improved.Filtration module 21 is connect with the madial wall of blood sampling tube body 1, is connected
The mode of connecing can be to be fixed using glue, or realized and fixed by hot melting way.Blood inlet 11 and filtrate (liquid 12
Be divided into the both sides of filtration module, autoblood import 11 towards filtrate (liquid 12, in being formed with one-way flow blood in blood sampling tube body 1
Liquid filtration channel.
Specifically, filter assemblies 2 are improved as an important feature of the utility model, for being filtered to blood,
It includes filtration module 21 and is arranged on the outside of the filtration module, for protecting catch net of the filter membrane from rupture, mistake
Filter membrane group 21 is provided with multiple filter membranes, autoblood import 11 towards on the direction of filtrate (liquid 12, filter membrane enumerates set successively
Set, also, autoblood import 11 towards on the direction of filtrate (liquid 12, the aperture of filter hole that is opened up on filter membrane is sequentially reduced
(as shown in Figure 2).Blood from blood inlet 11 enter blood sampling tube body 1 in and first with the filter membrane near blood inlet 11
(the maximum filter membrane in aperture) contacts, and then after the filtering of first layer filter membrane, then passes through other filter membranes successively, by
Be provided in filter membrane multiple, and the aperture of filter hole is gradually reduced, can make filter assemblies for blood filtering more
To be fine, filter effect is more preferably.
It should be noted that filter membrane used in the utility model may be used commercially available asymmetric membrane, such as PES,
PVDF etc. can also use multilayer different pore size glass film to be superimposed, and glass film is symmetric membrane.
The size of filter sizes is different and different according to filtering, and those skilled in the art can be according to the property of different blood
It is adjusted.
When suction of the setting for being absorbed and filter to plasma fibrinogen between filtration module 21 and catch net 22
When membrane 23, filter device provided by the utility model can be used as serum filter device.
Specifically, supporting frame 13 is two, the both ends of filtration module 21 and catch net 22 by with two supporting frames
Connection, realize with the connection of blood sampling inboard wall of tube body, and make filter membrane from the blood inlet towards the side of the filtrate (liquid
Arrangement is enumerated successively upwards.In one embodiment of invention, filtration module 21 and catch net 22 are fixedly installed on supporting frame
On 13 and be formed with bowl structure, filter assemblies are fastened on the both sides of blood inlet 11, supporting frame 13 using medical plastic or
Person's medical grade stainless steel is made, and the both ends of filter membrane 31 are pasted onto on supporting frame 13, and supporting frame 13 is fixed at blood sampling
On the madial wall of tube body 1.
It should be noted that the filtrate (liquid end 12 of the utility model is detachably connected with negative pressure collecting device and (is in figure
Show), specifically, the negative pressure collecting device can be it is any using it is preceding be negative pressure state, when blood sampling, in suction function
Under, the device of blood meeting automatic absorbing to tube body of taking a blood sample, such as vacuum blood collection tube.
Specifically, the filtrate (liquid of blood sampling tube body provided by the utility model can be arranged to it is existing any negative
The compatible interface of collection device is pressed, as a preferred embodiment of the utility model, the utility model is at filtrate (liquid end
Setting blood transfusion component 4, the connection of blood sampling tube body and negative pressure collecting device is realized by the component that will transfuse blood.
As shown in Figure 1, blood transfusion needle assembly 4 can be blood transfusion hose 41；As shown in Fig. 2, blood transfusion needle assembly 4 also may be used
To be blood transfusion syringe needle 42；As shown in figure 3, the blood transfusion needle assembly 4 can also include blood transfusion hose 41 and blood transfusion syringe needle simultaneously
42。
Including the blood transfusion syringe needle 42 for making the sealing-plug 41 of its sealing at filtrate (liquid end and being arranged across sealing-plug is arranged,
The air circulation of heparin tube inside and outside is realized by the hole for syringe needle 42 of transfusing blood.
Preferably, plug form may be used on sealing-plug in blood transfusion syringe needle 42.
It should be noted that filter device provided in this embodiment can be as the Circumscribed structure of blood-taking device, to acquisition
Blood carry out real time filtering.
Embodiment 2
As shown in figure 3, except every layer of filter membrane in filtration module uses fold membrane structure, catch net 22 uses and filter membrane
Outside the close pleated structure of 21 structures of group, other are same as Example 1, can increase the developed surface of filter membrane in this way, from
And the filter efficiency of the utility model is improved, filter effect is improved, is caused for stress concentration occurs when preventing filtering membrane filtration
Breakage, catch net 22 use the pleated structure close with 21 structure of filtration module, between catch net 22 and filtration module 21
Contact point increase, filter membrane bear pressure stress point increase, make filter membrane uniform stressed, therefore, catch net itself is not only
Can support protective effect preferably be provided to filtration module 21, the structure feature of catch net is also avoided that filter membrane stress collection
In and the phenomenon that damage.
When suction of the setting for being absorbed and filter to plasma fibrinogen between filtration module 21 and catch net 22
When membrane 23, filter device provided by the utility model can be used as serum filter device, adsorbed film 23 and use and filter membrane
Identical fold membrane structure (for increasing the developed area of film to improve filter effect).
Embodiment 3 is equipped with the filter device of blood drawing component
As shown in figure 4, while to realize blood collection, blood filtration operation is completed together, to realize simplified serum
The purpose of acquisition operations step, the utility model also provides a kind of filter device with blood drawing component 3, based on embodiment 1
Structure, the utility model is connected with a blood drawing hose 31 on the blood inlet 11 of blood sampling tube body 1, in the end of blood drawing hose 31
End is provided with blood drawing syringe needle 32, wherein blood inlet end is equipped with butt tube 111, is equipped in butt tube 111 and prevents blood and fall
The check valve 112 of stream.
Specifically, the blood inlet end of blood sampling tube body can be connect with commercially available any blood sampling hose, input end
Butt tube can be arranged to structure compatible with commercially available any blood sampling hose connection, in a reality of the utility model
It applies in example, on the architecture basics for being provided with blood drawing hose 31, the utility model has carried out structure optimization to blood sampling tube body 1：In
Be provided with butt tube 111 on blood inlet 11 and positioned at the outside of blood sampling tube body 1, butt tube 111 far from blood inlet 11 one
End is provided with internal thread, and blood drawing hose 31 is threadedly coupled with butt tube 111.Butt tube 111 is using material identical with blood sampling tube body 1
Material is made, and butt tube 111 is directly molded on blood sampling tube body 1, can improve connected between butt tube 9 and blood sampling tube body 1 in this way
Air-tightness.
As shown in figure 4, occurring in order to avoid there is the problem of backflow of blood, the utility model is set on blood inlet 11
It is equipped with check valve 112, the valve shell of check valve 112 is in close contact with the madial wall of butt tube 111.Specifically, check valve 112
There are one valve shells for tool, and circulation passage 1121 is offered on valve shell, one is movably provided on circulation passage
A sphere 1123, in the side of sphere, there are one elastomeric elements 1122, the other side to be equipped with elastic plate 1124, utilize elastic plate for setting
1124 block circulation passage, and when being pressurized in the sphere other side, elastomeric element 1122 deforms, and sphere movement is detached from circulation passage,
1124 leaving channel of elastic plate, such circulation passage, which is opened, allows liquid to pass through.After the pressure that sphere is subject to disappears, sphere exists
It is resetted under the action of elastomeric element and withstands circulation passage, realize that the closing of circulation passage, liquid can not pass through.
It should be noted that occurring in order to avoid there is the problem of backflow of blood, the utility model can also use other
Any one-way valve structures that can realize above-mentioned purpose.
As the utility model another improvement, for convenience of use, the utility model in the outside of butt tube 111, or in
The outside of blood sampling tube body 1 is provided with blood and flows to sign, which can be indicated with the mode of arrow, stamps in butt tube
Outside or the external side of heparin tube can also be to be attached to butt tube outside or the external side (not shown) of heparin tube, according to blood
Liquid stream is installed and is used to blood drawing hose 31 to sign.
Embodiment 4
As shown in Figures 6 and 7, in addition to being equipped with flow control valve 5 between filtrate (liquid end and negative pressure collecting device, other
It is same as Example 1.
Specifically, any knot that can control flow rate of liquid in the prior art may be used in the flow control valve
Structure, such as gate valve, ball valve or butterfly valve etc..
Specifically, one end of the flow control valve is connect with filtrate (liquid end, the other end and blood transfusion needle assembly or defeated
Blood syringe needle connects.
It is furnished with flow control valve in filtrate (liquid end：Function is, in filter process, after the bearing capacity of film, once
Haemolysis occurs, the serum of the serum and haemolysis of non-haemolysis can be detached in time, the serum of haemolysis is made to obstruct on check valve
The space in portion.
Test example
Using the filter device of the embodiment of the present application 1 and embodiment 2, to animal, blood was collected, collects serum, will be commercially available
Filter device and vacuum blood collection tube are connected together as reference examples, and to same animal, blood was collected, collect serum, wherein this
The filter core material of application is identical as the filter core material of commercially available filter device, but specification aperture is different, and the negative pressure of the application is collected
Device uses vacuum blood collection tube identical with reference examples, is measured to blood sampling time and filter effect, wherein filter effect makes
With haemocyte or blood platelet whether is deposited in sediments microscope inspection serum, measurement result is as shown in table 1.Commercially available filter device is filtering
Haemolysis occurs after 1.5s, the time of acquisition is short, and it is very unfavorable that collection in worksite is controlled.The filtering of embodiment 1 and embodiment 2
Device isolates serum in the time range of 13~15s respectively, and body cell, blood platelet is not detected, haemolysis does not occur.
The present invention's is collected by filtration that the time is more abundant, is conducive to operating personnel and closes flow control valve and the blood of haemolysis is prevented to enter
Collection device.
The embodiments of the present invention provide for the sake of example and description, and are not exhaustively or to incite somebody to action
The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art
See.Selection and description embodiment are and to make this field to more preferably illustrate the principles of the present invention and practical application
Those of ordinary skill is it will be appreciated that various embodiments with various modifications of the utility model to design suitable for special-purpose.
Claims (10)
1. a kind of filter device for negative pressure hemostix, which is characterized in that including：
One end is equipped with blood inlet, and the other end is equipped with the blood sampling tube body of filtrate (liquid；
The filter assemblies for being filtered to blood being arranged in heparin tube body；
Wherein, the filter assemblies include：
Multiple apertures are different from the blood inlet towards the filter membrane for enumerating setting on the direction of the filtrate (liquid successively
The filtration module of formation；
It is arranged on the outside of the filtration module, for protecting catch net of the filter membrane from rupture；
Wherein, from the blood inlet towards the mistake for enumerating setting on the direction of the filtrate (liquid successively in the filtration module
The aperture of the filter hole opened up on filter membrane is sequentially reduced.
2. the apparatus according to claim 1, which is characterized in that each filter membrane in the filtration module is fold knot
Structure, protection web frame are adapted with filtration module structure.
3. device according to claim 1, which is characterized in that it further includes the pumping being detachably connected with the blood inlet end
Blood component；
Wherein, the blood drawing component includes：
It is connected to the blood drawing hose at the blood inlet end；
Blood drawing syringe needle in the end of blood drawing hose is set.
4. the apparatus according to claim 1, which is characterized in that it is set on the blood sampling inboard wall of tube body there are two supporting frame,
The both ends of filtration module and catch net are connect with two supporting frames respectively, realize the connection with blood sampling inboard wall of tube body, and made
Filter membrane is from the blood inlet towards enumerating arrangement successively on the direction of the filtrate (liquid.
5. device according to claim 3, which is characterized in that described device further includes being arranged at blood inlet end, makes blood
Liquid flows to the half-duplex channel component that the filtrate (liquid is filtered from the blood inlet；
Wherein, the half-duplex channel component includes：
It is arranged at the blood inlet end and positioned at the butt tube in the outside of the blood sampling tube body；
The check valve being arranged in butt tube.
6. device according to claim 5, which is characterized in that in the outside of the butt tube, or in the blood sampling tube body
Outside be provided with blood and flow to sign.
7. the filter device according to claim 3 for negative pressure hemostix, which is characterized in that the blood drawing hose with it is described
Blood sampling tube body is detachably connected.
8. the apparatus according to claim 1, which is characterized in that the filtrate (liquid end detachably connects with negative pressure collecting device
It connects.
9. the apparatus according to claim 1, which is characterized in that the filtrate (liquid end passes through bleeding with negative pressure collecting device
The combination realization of hose or blood transfusion syringe needle or bleeding hose and blood transfusion syringe needle is detachably connected.
10. device according to claim 8, which is characterized in that set between the filtrate (liquid end and negative pressure collecting device
There is flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726647.6U CN208031217U (en) | 2018-05-16 | 2018-05-16 | Filter device for negative pressure hemostix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726647.6U CN208031217U (en) | 2018-05-16 | 2018-05-16 | Filter device for negative pressure hemostix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208031217U true CN208031217U (en) | 2018-11-02 |
Family
ID=63929202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820726647.6U Expired - Fee Related CN208031217U (en) | 2018-05-16 | 2018-05-16 | Filter device for negative pressure hemostix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208031217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821735A (en) * | 2020-06-20 | 2020-10-27 | 徐州市中心医院 | Fully-closed autologous bone marrow mononuclear cell and platelet rapid circulating filtration concentrator for regenerative medicine |
-
2018
- 2018-05-16 CN CN201820726647.6U patent/CN208031217U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821735A (en) * | 2020-06-20 | 2020-10-27 | 徐州市中心医院 | Fully-closed autologous bone marrow mononuclear cell and platelet rapid circulating filtration concentrator for regenerative medicine |
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