CN108523905A - A kind of safety blood taking device - Google Patents
A kind of safety blood taking device Download PDFInfo
- Publication number
- CN108523905A CN108523905A CN201810396656.8A CN201810396656A CN108523905A CN 108523905 A CN108523905 A CN 108523905A CN 201810396656 A CN201810396656 A CN 201810396656A CN 108523905 A CN108523905 A CN 108523905A
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- China
- Prior art keywords
- connector
- blood
- blood collection
- taking device
- membrane
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
Abstract
The present invention discloses a kind of safety blood taking device comprising：Blood collection needles acquire blood for being inserted into blood vessel；Vacuum blood collection tube, for collecting blood；One break-make connector, for being connected to the blood collection needles and the vacuum blood collection tube, wherein the break-make connector includes：One first connector is connect with blood collection needles by hose with interface, forms access；One second connector is connected to the first connector by interface channel；The interface channel is normally closed, and is connected to after second connector is squeezed by the vacuum blood collection tube.As such, it is desirable to when taking a blood sample, it is only necessary to which vacuum blood collection tube is pressed against second connector, you can realize connection, blood was collected；Additional operating procedure is not needed, it is simple and convenient.
Description
Technical field
The present invention relates to blood collecting technology fields, and in particular to a kind of safety blood taking device.
Background technology
Existing blood-taking device generally comprises blood collection needles, the vacuum blood collection tube of independent packaging and intermediate connector,
When blood sampling, blood collection needles are first inserted into the intravascular of patient, are then connected to connector with vacuum blood collection tube, finally by connection
Connection/closure of blood channel realizes the control of break-make that blood circulates from from blood vessel to vacuum blood collection tube in part.
But this blood-taking device is when in use, operation it is comparatively laborious, need the specially connection to blood channel/
Closure is controlled, once this allows for user when blood sampling, is forgotten closed procedure, is directly pulled out vacuum blood collection tube
Afterwards, it is easy to cause the consequence for blood infection/persistently bleed to patient.
In addition, vacuum blood collection tube is prefixed a certain amount of negative pressure in process of production, after pin puncture of taking a blood sample enters blood vessel,
Due to the suction function in heparin tube, blood automatically flows into heparin tube.
In blood collection procedure, after blood sampling to predetermined amount, if negative pressure disappears in vacuum blood collection tube, overpressure and vein pressure
Equal, vein pressure is more than atmospheric pressure, does not detach blood taking needle and vacuum blood collection tube in time before pulling out needle, leads to blood in blood taking needle silicone tube
Liquid reserves, if patient suffers from blood born diseases, easily haematogenous is caused to pollute.
Therefore, it is necessary to be improved to blood-taking device itself.
In view of drawbacks described above, creator of the present invention obtains the present invention finally by prolonged research and practice.
Invention content
To solve above-mentioned technological deficiency, the technical solution adopted by the present invention is, provides a kind of safety blood taking device, packet
It includes：
Blood collection needles acquire blood for being inserted into blood vessel；
Vacuum blood collection tube, for collecting blood；
One break-make connector, for being connected to the blood collection needles and the vacuum blood collection tube, wherein the break-make connector
Including：
One first connector is connect with blood collection needles by hose with interface, forms access；
One second connector is connected to the first connector by interface channel；
The interface channel is normally closed, and is connected to after second connector is squeezed by the vacuum blood collection tube.
Preferably, the break-make connector further includes：
One thin-film member is arranged on the interface channel, and break-make control is carried out to the interface channel；
One cuts membrane, is internally provided with inner cavity, top and the thin-film member against；
The thin-film member can be movable relatively with the membrane of cutting.
Preferably, the thin-film member is diaphragm with the membrane rest position of cutting, it is arranged in the middle part of the diaphragm seamed
Gap.
Preferably, described cut is provided with fixed part in the middle part of membrane, the thin-film member further includes elastic portion, the elastic portion one
The fixed diaphragm in end, the other end and the fixed part against.
Preferably, the connector is provided with cylindrical groove, to cut membrane described in receiving, the internal diameter of the cylindrical groove is slightly larger than
The outer diameter for cutting membrane fixed part.
Preferably, the break-make connector further includes a fixing piece, it is connect with the connector, film and institute is cut by described
Thin-film member is stated to fix.
Preferably, second connector is the movable part for being provided with syringe needle, and the fixing piece internal run-through, the activity
Part is arranged inside the fixing piece, moves in the axial direction.
Preferably, the fixing piece is internally provided with blocking step, described movable part one end and the diaphragm against, in
Portion is against the blocking step.
Preferably, the break-make connector further includes a needle holder, it is connect with the fixing piece.
Preferably, the needle holder is the cylindrical drum of one end open, the other end has internal thread；The syringe needle is from interior
One end of screw thread is inserted into the needle holder.
Compared with the prior art the beneficial effects of the present invention are：A kind of safety blood taking device is provided, in this way, directly passing through
Squeeze the second connector, you can to realize the connection of interface channel in break-make connector, do not need additional operating procedure, simply
It is convenient；In blood-taking device, the second connector in the break-make connector is squeezed with the vacuum blood collection tube in blood-taking device and is connected
It connects, as such, it is desirable to when taking a blood sample, it is only necessary to which vacuum blood collection tube is pressed against second connector, you can realize connection, adopted
Blood；After blood sampling, vacuum blood collection tube is taken away, then the squeezing action between vacuum blood collection tube and the second connector naturally also disappears
It loses, at this point, the interface channel in break-make connector disconnects automatically, anti-Hemostatic Oral Liquid continues loss or reflux, avoids
The possibility for blood infection/persistently bleed is caused to patient；It also avoids blood samples of patients to flow out from blood taking needle, blood is caused to pollute
The problem of.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical solution in various embodiments of the present invention
The attached drawing used is briefly described.
Fig. 1 is the section exploded perspective view of break-make connector of the present invention；
Fig. 2 is the diagrammatic cross-section of thin-film member of the present invention；
Fig. 3 is the diagrammatic cross-section that the present invention cuts membrane；
Fig. 4 is the diagrammatic cross-section of connector of the present invention；
Fig. 5 is the diagrammatic cross-section of fixing piece of the present invention；
Fig. 6 is the diagrammatic cross-section of movable part of the present invention；
Fig. 7 is the diagrammatic cross-section of needle holder of the present invention；
Fig. 8 is the diagrammatic cross-section of break-make connector of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the forgoing and additional technical features and advantages are described in more detail.
Embodiment 1
As shown in Fig. 1 (in figure all draw), wherein the safety blood taking device includes：
Blood collection needles, for acquiring blood；
Vacuum blood collection tube, for collecting blood；
One break-make connector is for being connected to the blood collection needles and the vacuum blood collection tube, wherein the break-make connector
Including：
One first connector forms access with interface for being connect by hose with blood collection needles；
One second connector is connected to the first connector by interface channel；
Wherein, the connecting path is normally closed, and is connected to after second connector is squeezed by the vacuum blood collection tube.
In this way, directly by squeezing the second connector, you can to realize the connection of interface channel in break-make connector, be not required to
Additional operating procedure is wanted, it is simple and convenient；In blood-taking device, by the second connector and blood-taking device in the break-make connector
In vacuum blood collection tube be press-connected, as such, it is desirable to when taking a blood sample, it is only necessary to by vacuum blood collection tube be pressed against it is described second connection
Part, you can realize connection, blood was collected；After blood sampling, vacuum blood collection tube is taken away, then vacuum blood collection tube and the second connector
Between squeezing action naturally also disappear, at this point, the interface channel in break-make connector disconnects automatically, anti-Hemostatic Oral Liquid
Continue to be lost in or flow back, avoids the possibility for causing blood infection/persistently bleed to patient；Blood samples of patients is also avoided from blood sampling
The problem of being flowed out at needle, blood caused to pollute.
As such, it is desirable to when taking a blood sample, it is only necessary to which vacuum blood collection tube is pressed against second connector, you can realize connection,
Blood was collected；After blood sampling, vacuum blood collection tube is taken away, then the squeezing action between vacuum blood collection tube and the second connector from
So also disappear, at this point, the interface channel in break-make connector disconnects automatically, anti-Hemostatic Oral Liquid continues loss or reflux,
The possibility for causing blood infection/persistently bleed to patient is avoided, achievees the purpose that safety blood taking.
Embodiment 2
Safety blood taking device as described above, the present embodiment is different from place and is, as shown in Figure 1, the break-make
Connector further includes：
One thin-film member 1 is arranged on the interface channel, and break-make control is carried out to the interface channel；
One cuts membrane 2, is internally provided with inner cavity 24, top and the thin-film member 1 against；
The thin-film member 1 can be movable relatively with the membrane 2 of cutting.
In this way, a part of the inner cavity 24 as the interface channel, in initial position, the thin-film member 1 is closed,
The interface channel is set to disconnect, 2 top of membrane of cutting is against the thin-film member 1；After second connector is squeezed,
The squeezing action is transferred to the thin-film member 1 and cuts membrane 2 with described so that the thin-film member 1 cuts the mutually fortune of membrane 2 with described
Dynamic, the top for cutting membrane 2 is open-top by the thin-film member 1, then the inner cavity 24 for cutting membrane 2 is with the membrane 2 of cutting
Movement runs through the thin-film member 1, at this point, the interface channel is connected；It disappears in the active force that is extruded of second connector
Afterwards, the thin-film member 1 sets back with the membrane 2 of cutting under the action of restoring force, and the interface channel disconnects.
Wherein, the top can be tip, and the thin-film member 1 is cut open to more convenient.
In conjunction with shown in Fig. 2, wherein the thin-film member 1 is diaphragm 11 with 2 rest position of membrane of cutting, with bullet
Property, it is scalable；In this way, the thickness very little of the diaphragm 11 so that the diaphragm that cuts can be easily by the diaphragm
11 cut open, and achieve the purpose that communication passage；Its elasticity is good, can restore good working condition in described cut after diaphragm leaves, reach disconnected
The purpose of open walk.
In addition, the thickness of diaphragm 11 is small so that the diaphragm 11 is under the active force of very little, so that it may to realize channel
Disconnection and conducting so that when operation opening and closing be easier, the active force smaller needed；In this case, very little can be passed through
Active force realizes opening and closing so that the active force demand smaller for cutting membrane 2 and thin-film member 1 in whole device to recovery does not need volume
The return units such as outer addition spring reset to realize.
Wherein, the setting of the middle part of the diaphragm 11 has the gap, to the position for cutting the open-top thin-film member of membrane 21
Set and guide, reduce need it is open-top/cut open the thin-film member 1 needs active force and restore need active force.
Wherein, the diaphragm 11 thickeies at gap；It is deformed when in this way, can be abutted against to the diaphragm 11
Guide, and deformation restores simple, prevent because the random deformation of diaphragm 11 or caused by deformation can not be restored to even
Connect being unable to control for the break-make in road.
Wherein, the thin-film member 1 further includes elastic portion 12, and the diaphragm 11 is fixed in 12 one end of the elastic portion, described
Elastic portion 12 is corrugated elastic component, for restoring the thin-film member 1 and the relative position for cutting membrane 2.
In conjunction with shown in Fig. 3, wherein 2 middle part of membrane of cutting is provided with fixed part 21, the elastic portion 12 and the fixation
Portion 21 against, the thin-film member 1 and it is described cut 2 relative motion of membrane after, the elastic portion 12 compress；In second connection
Part is extruded after active force disappears, the stretching, extension release of the elastic portion 12 of compression so that described to cut membrane 2 and the thin-film member 1 is extensive
Restore position.
Wherein, first annular groove 22 is provided on the fixed part 21, the elastic portion 12 is inserted into the annular groove
In, keep the thin-film member 1 and the combination for cutting membrane 2 firm.
Preferably, the fixed part 21 is tightly connected with the elastic portion 12, Hemostatic Oral Liquid anti-in this way and contacting external air.
Wherein, the membrane 2 of cutting is provided at both ends with port 23, and the port 23 is connected to the inner cavity 24 respectively；In this way,
It is described cut the open-top thin-film member of membrane 21 after, the port 23 for cutting 2 both ends of membrane is located at the two of the thin-film member 1
End achievees the effect that the interface channel conducting so that the inner cavity 24 penetrates through the thin-film member 1.
Preferably, the opening direction being arranged in the port 23 for cutting 2 top of membrane hangs down with the axis for cutting membrane 2
Directly, in this way so that gap of the circulation passage of blood on diaphragm 11, anti-Hemostatic Oral Liquid are straight after being flowed out from the inner cavity 24
Calking gap (if flinging gap, blood can be revealed out of described gap, and the purpose for being closed completely the interface channel is not achieved),
Cause the consequence of blood leakage.
Embodiment 3
Safety blood taking device as described above, the present embodiment is different from place and is, in conjunction with shown in Fig. 4, described the
A connection piece is connector 3, is provided with interface, for being connect with blood taking needle hose, forms the access of blood-transmitted.
Wherein, the connector 3 is provided with cylindrical groove 31, for being combined with the membrane 2 of cutting.
Wherein, the internal diameter of the cylindrical groove 31 is convenient for accommodating institute in this way slightly larger than the outer diameter for cutting 2 fixed part 21 of membrane
State fixed part 21；And convenient for the fixed part 21 for cutting membrane 2 is sticked in the cylindrical groove 31.
Wherein, the diameter of the diaphragm 11 is more than the outer diameter for cutting 2 fixed part 21 of membrane, in this way, the cylindrical groove
31 can stop the diaphragm 11, prevent the diaphragm 11 from entering the cylindrical groove 31, to the diaphragm 11
Movement is limited.
Embodiment 4
Safety blood taking device as described above, the present embodiment is different from place and is, described logical in conjunction with shown in Fig. 5
Disconnection fitting further includes a fixing piece 4, is connect with the connector 3, and membrane 2 is cut and the thin-film member 1 is fixed by described.This
Sample, fixing piece 4 and connector 3 will cut membrane 2 and thin-film member 1 and be contained in inside, limit and described cut membrane 2 and the thin-film member
1 can only move along its axis direction；At this point, fixing piece 4 and the thin-film member 1 against.
Wherein, the fixing piece 4 is tightly connected with the connector 3, and the inside and outside isolation of fixing piece 4 and connector 3 prevents
It cuts membrane 2 and is contacted with the external world with thin-film member 1 and corresponding interface channel, and blood is caused to pollute.
Wherein, one end that the fixing piece 4 is contacted with the connector 3 is provided with second annular groove 41, in this way, just
It is connect in the connector 3, reaches sealing state.
Wherein, one end that the connector 3 is contacted with the fixing piece 4 is provided with the second annular protrusion 32, and described
Second annular groove 41 corresponds to, so as to combine closely.
On this basis, the second annular groove 41 and second annular protrusion 32 are engaged, and by glue bond,
It can reach the effect of sealing.
Embodiment 5
Safety blood taking device as described above, the present embodiment is different from place and is, in conjunction with shown in Fig. 6, described the
Two connectors are the movable part 5 for being provided with syringe needle, in this way, as vacuum blood collection tube squeezes the movable part 5, the movable part 5
On syringe needle can be inserted into the vacuum blood collection tube, achieve the purpose that connect with vacuum blood collection tube.
Wherein, 4 internal run-through of fixing piece, the movable part 5 are arranged inside the fixing piece 4, move in the axial direction；
In this way, when the vacuum blood collection tube squeezes the movable part 5, the movable part 5 is transported along the axis direction of the fixing piece 4
It is dynamic, squeeze the diaphragm 11 contacted with the fixing piece 4.
Wherein, 5 one end of the movable part and the diaphragm 11 are against in this way, when the movable part 5 move, compressing
The diaphragm 11.
Wherein, the fixing piece 4 is internally provided with blocking step 43, limits the movement of the movable part 5, prevents
The movable part 5 is skidded off from the fixing piece 4；In this way, by the diaphragm 11 and the blocking step 43 to movable part 5
Movement in two directions is limited.
One end of the movable part 5 is provided with syringe needle, the other end and diaphragm 11 against；In this way, the vacuum blood collection tube
When Compressive activities part 5, the movable part 5 moves, and compresses the diaphragm 11；After the compression of the diaphragm 11, the activity
5 stop motion of part, the syringe needle are inserted into the extruding of vacuum blood collection tube in the vacuum blood collection tube.
Embodiment 6
Safety blood taking device as described above, the present embodiment are different from place and are, also set up on the movable part 5
There is a protective sleeve of syringe needle 7, the syringe needle is protected, prevents syringe needle from hurting sb.'s feelings or being damaged by external force.
Embodiment 7
Safety blood taking device as described above, the present embodiment is different from place and is, in conjunction with shown in Fig. 7, Fig. 8, institute
It further includes a needle holder 6 to state break-make connector, is connect with the fixing piece 4.In this way, convenient for holding, and can pair with it is fixed
The movable part 5 and syringe needle that part 4 connects are protected, and prevent that syringe needle from hurting sb.'s feelings or syringe needle is damaged by external force.
The other end (one end not connect with connector 3) of the fixing piece 4 is provided with external screw thread, and the needle holder 6 is set
It is equipped with internal thread, so that the fixing piece 4 is connected through a screw thread with the needle holder 6, stable connection and easy to disassemble.
The needle holder 6 is fixedly connected with the fixing piece 4, can be connected to move the break-make by holding needle holder 6
Fitting.
The needle holder 6 is the cylindrical drum of one end open, and the other end has internal thread；In this way, the fixing piece 4 with it is described
After needle holder 6 connects, the syringe needle is inserted into the needle holder 6 from closed one end, achievees the purpose that protection and convenient for gripping；And
Vacuum blood collection tube can be inserted into needle holder 6 from one end of opening, so that vacuum blood collection tube is connect with syringe needle, syringe needle is inserted into true
In empty heparin tube；In this way, convenient for holding needle holder 6, you can realize that the insertion connection and extraction of vacuum blood collection tube and syringe needle connect,
It is easy to use.
Embodiment 8 is set, and the present embodiment is that the use process that above-mentioned break-make connector is arranged in blood-taking device is retouched
It states, wherein when connection, connector 3 is connect with blood taking needle；Need blood sampling when, blood taking needle is inserted into it is intravascular, by vacuum blood collection tube
It is inserted into needle holder 6, and starts to exert oneself；Vacuum blood collection tube oppresses syringe needle, and oppresses movable part 5 in turn so that movable part 5 is to thin
Diaphragm
Safety blood taking as described above fills the movement of 11 directions；After diaphragm 11 is applied, moved；1 quilt of thin-film member
Compression, cuts membrane 2 and is kept fixed, then cut 2 top of membrane and withstand diaphragm 11 at this time；Due to the effect of power, diaphragm 11 can be sent out
Raw deformation, intermediate gap is cut membrane 2 and is strutted, and after the thin-film member 1 is compressed to certain position, cuts the port of membrane 2 at this time
23 have passed through diaphragm 11, so that interface channel is connected；At this point, since vacuum blood collection tube oppresses syringe needle, syringe needle is with thin
The compression of membrane 1, reaction force are increasing；Until syringe needle is initially inserted into vacuum blood collection tube；In this way so that interface channel
Conducting and syringe needle are inserted into vacuum blood collection tube and occur simultaneously；It is simple and convenient.At this point, keeping the firmly state of vacuum blood collection tube so that
Blood can be flowed into smoothly.
After blood sampling, vacuum blood collection tube is pulled out outward, at this point, driving syringe needle movement；Simultaneously as the compression of thin-film member 1, production
Raw restoring force so that diaphragm 11 is moved to negative direction, is progressively disengaged and is cut membrane 2, and the deformation of diaphragm 11 also fades away, even
Road is connected to disconnect；Blood stops flow into vacuum blood collection tube.
Certainly, after vacuum blood collection tube insertion needle, the firmly state of vacuum blood collection tube can also be stopped, at this point, due to thin
The restoring force that the compression of membrane 1 generates so that diaphragm 11 is moved to negative direction, achievees the purpose that disconnect channel.
Wherein, can also be that the vacuum blood collection tube squeezes the syringe needle if the material of syringe needle and vacuum blood collection tube influences
Afterwards, the syringe needle is inserted directly into the vacuum blood collection tube；Then, continue to exert oneself with vacuum blood collection tube so that movable part 5 is opened
Begin to move, achievees the purpose that penetrate through interface channel.
Wherein, the diameter of the diaphragm 11 can be not more than the outer diameter for cutting 2 fixed part 21 of membrane, to described
When thin-film member 1 is compressed, the diaphragm 11 enters with compression in the cylindrical groove 31, reaches better compression effectiveness.
Wherein, the diaphragm 11 and the movable part 5 against when, connection relation can be set to, in this way, film
Piece 11 can be moved with the movement of movable part 5, more convenient to the control of interface channel.
Embodiment 9
Safety blood taking device as described above, the present embodiment is different from place and is, to realize by other means
Break-make connector, setting is by on-off system (a such as micro valve) such as on interface channel, by the trigger point of the device
It is arranged on needle holder 6 or on movable part 5 (the second connector), in this way, after the vacuum blood collection tube squeezes the second connector,
The trigger point can be triggered, achievees the purpose that control interface channel break-make.
The trigger point can be mechanical triggering, can also be by the way that microswitch is arranged, reaches triggering effect.
The foregoing is merely presently preferred embodiments of the present invention, is merely illustrative for the purpose of the present invention, and not restrictive
's.Those skilled in the art understand that in the spirit and scope defined by the claims in the present invention many changes can be carried out to it,
It changes or even equivalent, but falls in protection scope of the present invention.
Claims (10)
1. a kind of safety blood taking device, which is characterized in that including：
Blood collection needles acquire blood for being inserted into blood vessel；
Vacuum blood collection tube, for collecting blood；
One break-make connector, for being connected to the blood collection needles and the vacuum blood collection tube, wherein the break-make connector packet
It includes：
One first connector is connect with blood collection needles by hose with interface, forms access；
One second connector is connected to the first connector by interface channel；
The interface channel is normally closed, and is connected to after second connector is squeezed by the vacuum blood collection tube.
2. safety blood taking device as described in claim 1, which is characterized in that the break-make connector further includes：
One thin-film member is arranged on the interface channel, and break-make control is carried out to the interface channel；
One cuts membrane, is internally provided with inner cavity, top and the thin-film member against；
The thin-film member can be movable relatively with the membrane of cutting.
3. safety blood taking device as claimed in claim 2, which is characterized in that the thin-film member cuts membrane rest position with described
For diaphragm, diaphragm middle part setting has the gap.
4. safety blood taking device as claimed in claim 3, which is characterized in that described cut is provided with fixed part in the middle part of membrane, institute
It further includes elastic portion to state thin-film member, and the diaphragm is fixed in described elastic portion one end, the other end and the fixed part against.
5. safety blood taking device as claimed in claim 4, which is characterized in that the connector is provided with cylindrical groove, to accommodate
Described to cut membrane, the internal diameter of the cylindrical groove is slightly larger than the outer diameter for cutting membrane fixed part.
6. safety blood taking device as claimed in claim 5, which is characterized in that the break-make connector further includes a fixing piece,
It connect with the connector, and membrane is cut and the thin-film member is fixed by described.
7. safety blood taking device as claimed in claim 6, which is characterized in that second connector is the work for being provided with syringe needle
Moving part, the fixing piece internal run-through, the movable part are arranged inside the fixing piece, move in the axial direction.
8. safety blood taking device as claimed in claim 7, which is characterized in that the fixing piece is internally provided with blocking step,
Described movable part one end and the diaphragm are against, middle part against the blocking step.
9. the safety blood taking device as described in claim 6 or 7 or 8, which is characterized in that the break-make connector further includes holding
Needle device is connect with the fixing piece.
10. safety blood taking device as claimed in claim 9, which is characterized in that the needle holder is the cylindrical drum of one end open,
The other end has internal thread；The syringe needle is inserted into from having female one end in the needle holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396656.8A CN108523905A (en) | 2018-04-28 | 2018-04-28 | A kind of safety blood taking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396656.8A CN108523905A (en) | 2018-04-28 | 2018-04-28 | A kind of safety blood taking device |
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| CN108523905A true CN108523905A (en) | 2018-09-14 |
Family
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|---|---|---|---|
| CN201810396656.8A Pending CN108523905A (en) | 2018-04-28 | 2018-04-28 | A kind of safety blood taking device |
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| CN107440727A (en) * | 2017-08-28 | 2017-12-08 | 刘贞宽 | Disposable venous blood collect needle（Anti-reverse flow pattern） |
| CN209269714U (en) * | 2018-04-28 | 2019-08-20 | 哈尔滨鼓润生物技术有限公司 | A kind of safety blood taking device |
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