CN104470438B - Syringe type vacuum blood collector - Google Patents
Syringe type vacuum blood collector Download PDFInfo
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- CN104470438B CN104470438B CN201280074567.2A CN201280074567A CN104470438B CN 104470438 B CN104470438 B CN 104470438B CN 201280074567 A CN201280074567 A CN 201280074567A CN 104470438 B CN104470438 B CN 104470438B
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- pipe
- sample collection
- blood sample
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- 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
- A61B5/1545—Devices using pre-evacuated means comprising means for indicating vein or arterial entry
-
- 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
- A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
-
- 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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
-
- 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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
- A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
-
- 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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
-
- 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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
-
- 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
- A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
-
- 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
- A61B5/15074—Needle sets comprising wings, e.g. butterfly type, for ease of handling
-
- 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
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
-
- 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
- A61B5/155—Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A syringe type vacuum blood collector comprises a syringe (3) and a blood sample collection pipe (2). The syringe (3) has a seal cavity (32) and a cylindrical cavity (33) inside, and the seal cavity (32) communicates with a vascular puncture needle tube (11) and a blood collection needle tube (12), so as to be used as a blood return cavity to help a user observe the blood return. The blood sample collection pipe (2) is sleeved in the cylindrical cavity (33). By pushing the blood sample collection pipe (2) forward relative to the syringe (3), the blood collection needle tube (12) punctures a seal layer (21) formed by a rear end wall of a pipe plug of the blood sample collection pipe (2), so as to collect blood. The blood collector makes the vascular puncture needle tube (11), the blood collection needle tube (12), and the blood sample collection pipe (2) integrated into a whole and combined to form a traditional syringe structure, thereby simplifying the structure and facilitating the control operation. The operation process of the blood collector is very similar to a traditional syringe operation, and can reduce the work load and psychological burden of a medical worker; and even in the case that the limbs motion range of a patient is large, misoperations are unlikely to occur, thereby improving the safety and success degree of operations. The blood collection needle further comprises a safe structure; therefore, it is ensured that a regressed puncture needle tube is not pushed out to hurt a person, and that the blood collector is not used again.
Description
Technical field
The present invention relates to a kind of outer vacuum blood collection apparatus of human body, particularly a kind of syringe-type vacuum blood collection in clinical treatment
Device.
Background technology
A kind of vacuum blood collection pipe device of the prior art as shown in Figure 1 and Figure 2, including blood taking needle 1 and blood sample collection
Pipe 2, blood taking needle 1 one end is vascular puncture needle tubing 11, and the other end is with gum cover blood-collecting needle tube 12, and centre is flexible coupling by pvc
Pipe 16 connects.This device, in blood sampling, is first pulled out protective case on the needle tubing of two, vascular puncture needle tubing 11 is pierced sufferer arm quiet
In arteries and veins, blood is waited to enter in blood sampling conduit, medical worker pushes down the needle handle of this vascular puncture needle tubing 11 immediately with little finger, in case
Puncture needle tubing to come off；Because blood sample collection pipe 2 seal rubber plug is very thick, blood-collecting needle tube 12 pinpoint inclined plane angle is big, and needle point is blunt,
Very big plus blood-collecting needle tube 12 sealed rubber pipe elastic force when being compressed axially, therefore need both hands could pierce blood-collecting needle tube 12
In blood sample collection pipe, operation quite inconvenience.Due to being negative pressure in blood sample collection pipe 2, blood flows in this collecting pipe
Speed.To be collected to required sample amount, if multitube blood sample need to be gathered, must bimanualness could be by blood-collecting needle tube 12
Extract from collecting pipe 2.Now the outer soft rubber sleeve of blood-collecting needle tube 12 restores, and encases blood-collecting needle tube, prevents blood in conduit from flowing out dirty
Dye environment, the intubation before then repeating；If not needing to draw blood again, must first extract puncture needle tubing 11 on human body,
Put needle tip shield again, then pull out blood-collecting needle tube 12 on collecting pipe 2.This vacuum blood sampler is due to blood taking needle 1 as can be seen here
With collecting pipe 2 split construction, blood collection procedure need to be cared for two needle tubing of hose connector 16 simultaneously, lead to complex operation loaded down with trivial details, many
Individual operating procedure even needs both hands and also needs to impose certain and just right power and just can complete extracting and inserting of needle tubing,
And now just cannot care for the needle tubing of other end, so involve the cooperating needing more than one medical personnel again.
The loaded down with trivial details operating procedure of this complexity and the presence of two needle tubing, virtually increased medical personnel's workload and psychology is born
Load, suffer from unconsciousness, restless, disoperative patient and infant patient and under the big scene of limb activity amplitude,
Easily produce maloperation.
Content of the invention
It is an object of the invention to overcoming weak point of the prior art, and provide a kind of structure to simplify, simple to operate
Readily syringe-type vacuum blood collector.
The purpose of the present invention is realized by following approach.
Syringe-type vacuum blood collector, including vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe, it forms main points
It is, also includes a kind of syringe, the tail end of vascular puncture needle tubing bias in the way of near syringe outer peripheral face is plugged on syringe
On the Paracentesis needle holder of leading section, the needle point of this needle tubing and the major part of needle tubing all exposed outside syringe, have one inside syringe
Before annular seal space and a cylindrical cavity, wherein annular seal space are located at cylindrical cavity, the tube core of vascular puncture needle tubing is connected with this annular seal space,
The front end of blood-collecting needle tube is installed with this capsule walls, and rear end and needle tubing major part extend back and be plugged on blood sample collection
In the pipe close of pipe, the tube core of blood-collecting needle tube is connected with this annular seal space, and cylindrical cavity is located at the rear of annular seal space and its rear end is opened
Put, blood sample collection pipe pipe close is nested with this cylindrical cavity front in the way of removable, blood sample collection pipe pipe
Plug aft bulkhead has a sealant that can be pierced through by blood-collecting needle tube rear end, the cylindrical cavity tool of blood sample collection pipe front end face
Promising pierce through this sealant and space that the front blood sample collection tube capacity pushing away is put, vascular puncture needle tubing tube core, annular seal space, blood sampling
Blood sample collection pipe tube chamber after needle tubing tube core and pierced sealant forms a kind of blood channel.
So, with syringe rigid attachment vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe, make three not only
Body constructs and forms a kind of traditional needle cylinder structure, and structure simplifies, and holds easy to operate, and operating process and conventional syringes
Operation is extremely similar.
During blood sampling, hold syringe and pierce vascular puncture needle tubing in sufferer arm vein, when seeing blood back, handle pin on the other hand
Cylinder, another handss or same another on the other hand finger sinciput blood sample collection pipe, make blood-collecting needle tube rear end pierce through blood sample collection pipe
The sealant of pipe close, due to the negative pressure of blood sample collection pipe tube chamber, blood flows into the speed in this collecting pipe.To be collected
To required sample amount, if multitube blood sample need to be gathered, one hand is only needed to extract collecting pipe from cylindrical cavity, now blood-collecting needle tube
The outer blood sampling sealing shroud made by soft rubber sleeve restores, and encases blood-collecting needle tube, prevents blood in conduit from flowing out pollution environment, Ran Houzai
Take out new blood sample collection pipe；If not needing to draw blood again, only need to first extract puncture needle tubing on human body, putting needle point shield
Set, then remove collecting pipe.
The purpose of the present invention can also be realized by following approach.
The vascular puncture needle tubing extending near syringe outer peripheral face arrangement and forward and the center parallel of syringe.
The anterior annular seal space of syringe is a kind of blood back cavity, and the position that syringe outer peripheral face is adapted with this annular seal space has can
Observe the perspective portion of blood back.
Syringe leading section is in the downwardly extending wedge shape that contracts in one kind, and vascular puncture needle tubing is solid with syringe in the lower extending end head of this wedge shape
Connect, the perspective portion of observable blood back is located on the inclined-plane of this wedge shape.
The upper contracting end of this tapered ramp and the outer peripheral face of syringe intersect, and the lower extending end of this tapered ramp is near syringe periphery
The position in face forms a kind of small boss a, and it is affixed with syringe that vascular puncture needle tubing tail end passes through this boss a.
So, this tapered ramp faces the operator bending to be operated, and is easy to observe.
This perspective portion can be made using transparent material.
Cover after annular seal space and there is a small boss b, the fixation of blood-collecting needle tube front end is on this boss b.
Blood-collecting needle tube and syringe arranged concentric, and extend along syringe center back.
Cylindrical cavity has front bulkhead, has interval, extend back between this annular seal space bonnet and cylindrical cavity front bulkhead
Through this cylindrical cavity front bulkhead blood-collecting needle tube simultaneously bearing on this cylindrical cavity front bulkhead.
So, blood-collecting needle tube possesses preferable support and couples rigidly.
Blood-collecting needle tube is coated with blood sampling sealing shroud, and blood sample collection pipe pipe close is provided centrally with axially extending to sealing
The core bore of layer, this core bore internal diameter is more slightly larger than blood sampling sealing shroud external diameter.
So, blood taking needle pipe racks with take a blood sample seal pipe along this core bore penetrate pipe close when, blood sampling sealing shroud compressed axially
Compression radial distorted dilatating and deformable, just with this core bore inner hole wall extrusion friction, more will not allow blood-collecting needle tube deviate from blood sample
Collecting pipe pipe close.
Blood sample collection pipe pipe close sealant thickness is 3 0.5mm, preferably 1.5 0.5mm.
So blood-collecting needle tube can easily wear out sealant.
Be there is in cylindrical cavity the construction being adapted with blood sample collection pipe pipe close, this construction not only facilitates blood sample
The loading of collecting pipe and taking-up, be connected with blood sample collection pipe pipe close the annexation being formed compared with consolidation simultaneously again.
The optimization further of this construction can be so that blood sample collection pipe is plugged in cylindrical cavity, is adapted
Construction is a kind of construction of interference fits connection in size.
It may also is that: cylindrical cavity inwall is circumferentially symmetrically arranged with and is adapted to place's bullet with blood sample collection pipe pipe close
Property the construction that touches of card, when the two is in the tactile state of card, before blood-collecting needle tube rear end is just in sealant to be pierced through.
Will not fall off out when the blood sample collection pipe that had so both conveniently been inserted in cylindrical cavity is upright, and from sense of touch
Give the insertion degree of the blood sample collection pipe being arranged in cylindrical cavity, thus convenient install.
It can be a kind of short arc convex clamping point that this elastic card touches construction, or this short arc convex clamping point or blood sample collection pipe
Pipe close is made up of elastomeric material.
This elastic card touches the urgent connection status of elasticity that construction can cause cylindrical cavity inwall and pipe close, but is applying
During axial force, blood sample collection pipe still can do with respect to cylindrical cavity and freely before push away or retreat.
This short arc convex clamping point as the term suggests be exactly a kind of dash forward the convex inwall in cylindrical cavity on salient point, thickness low shallow and
All there is arc-shaped transition side in front and back, passes through in order to creeping of pipe close.
Other adaptation connecting structure can also separately be increased on the basis of this elastic card touches construction carry out cooperation makes
In order to reach more preferable using effect, the following is using cooperatively of one of which optimization:
The construction being adapted with pipe close in cylindrical cavity is that a kind of a plurality of inwall along cylindrical cavity is circumferentially distributed or right
Claim the construction that the elastic card of distribution touches, the construction that another kind is adapted is the l shape groove and making being produced on pipe close outer peripheral face
Prominent salient point on cylindrical cavity inwall, this prominent salient point enters l shape groove from the termination of the l shape groove vertical section positioned at pipe close front end face
And can slide wherein, when cylindrical cavity inwall is touched with pipe close elastic card, this prominent salient point has been enter in the vertical section in l shape groove
But not yet reach the bottom of this vertical section, before now blood-collecting needle tube rear end is just in sealant to be pierced through, when sinciput blood sample
This collecting pipe pierces through after sealant to blood-collecting needle tube, and this prominent salient point just reaches the bottom of this vertical section, now rotates blood sample
Collecting pipe, this prominent salient point enters the cross break section in l shape groove.
So, the cross break section in l shape groove can be with locked blood sample collection pipe degree of freedom in the axial direction so as to relative pin
Cylinder can neither before push away nor retreat.
Can be so that blood sample collection pipe screw thread is connected in cylindrical cavity, the construction being adapted is a kind of spiral shell again
Stricture of vagina connecting structure.
Blood sample collection pipe pipe close is made up of seal rubber plug and protection cap, fluid sealant plug sleeve plug in collecting pipe tube chamber,
Protection cap lid plug is on the collecting pipe mouth of pipe and seal rubber plug.
The construction being adapted with cylindrical cavity is generally located in protection cap.
The length of cylindrical cavity is less than the length of blood sample collection pipe, is nested with the blood sample collection in cylindrical cavity
The afterbody of pipe exposed outside cylindrical cavity.
Syringe is having along syringe is axially arranged with being contained in blood sample collection pipe pipe close on the position being adapted in syringe
As operation window, this operation window has two to a kind of strip grooves, and Relative distribution is in the both sides of syringe.
So blood back can be observed by this operation window, observe the state of blood volume in blood sample collection pipe, also observable blood
The insert state of liquid sample collection tube and insertion degree, also first can pinch through this operation window when extracting blood sample collection pipe
Hold pipe close and firmly exit blood sample collection pipe backward, thus prevent from exiting collecting tube body and pipe close during blood sample collection pipe
Disengaging.
It is provided with a kind of tactile platform, this tactile platform bottom surface is in one kind on that side outer peripheral face of the close syringe of vascular puncture needle tubing
Planar shaped or be in a kind of arcs of recesses being adapted with human body ancon.
This tactile platform facilitates syringe and human body by touching, and increases the frictional force of syringe and human skin, makes syringe be difficult to slide
De-.
A kind of soft deposited wing is provided with that side outer peripheral face of the close syringe of vascular puncture needle tubing, this soft deposited wing with
Syringe is affixed, and both sides have the span, and deposited wing bottom surface is in a kind of planar shaped or is in a kind of arcs of recesses being adapted with human body ancon.
This deposited wing facilitates syringe and human body by touching, and increases the frictional force of syringe and human skin, makes syringe be difficult to slide
De-.
Further viscosity glue point can also be set in deposited wing bottom surface.
At the end of blood sampling, if being able to retract to puncturing needle tubing in protective case inner chamber, you can prevent from puncturing needle tubing needle point
Accidentally injure other people and cause the injury such as infection, so, the present invention can deepen the syringe-type vacuum blood collector for a kind of safety further,
One way in which is:
Paracentesis needle holder is located in the syringe inner chamber inside syringe front bulkhead, and Paracentesis needle holder inner chamber is annular seal space, syringe side
A kind of tail end is axially extended with wall and is provided with the sliding tray retreating obstacle, Paracentesis needle holder push handle is dashed forward and passed this sliding tray and be exposed at
Outside syringe, the axial length of syringe inner chamber is more than the length of exposed puncture needle tubing outside syringe, puncture needle tubing, Paracentesis needle holder,
Blood-collecting needle tube or even a kind of slide unit that can retreat slip with respect to syringe of collecting pipe composition, the retrogressing with slide unit is worn
Pricker pipe retracts in syringe inner chamber.
At the end of blood sampling, along this sliding tray pusher Paracentesis needle holder and needle tubing can be punctured, the pin until puncture needle tubing submerges completely
In cylinder, now syringe is again as protective case.Sliding tray tail end retreats obstacle can be stoped the Paracentesis needle holder of recession and puncture needle tubing
Pass syringe.This retrogressing obstacle can be a kind of the dash forward convex stuck point in sliding tray tail end or closing of sliding tray tail end.
The optimization further of this mode is:
Also include a kind of non-return device, this non-return device is arranged between slide unit and syringe, retreats to puncture needle
If push away before the slide unit that pipe is retracted in syringe inner chamber is reverse will contact with the prevention of this non-return device.
So, because of the prevention of non-return device, retreat the slide unit that puts in place can not before push away.Thus both having ensured that retreat wore
Pricker pipe will not elapse out again hurts sb.'s feelings it is also possible to promote this syringe-type vacuum blood collector single use of the present invention.
Common in this non-return device aciculiform medical apparatus and instruments in the prior art, mostly can apply in the present invention
In.The non-return devices of here two kinds of optimizations of offer of the present invention:
This non-return device is a kind of elastic symmetry closure tongue piece, is arranged in the syringe inner chamber in front of Paracentesis needle holder, punctures
Needle tubing tail end wore the closure joint portion of this closure tongue piece and was fixed on Paracentesis needle holder.
So, after puncture needle tubing is removed, tongue piece elastic reset blocks former puncture barrel outlet.
This non-return device is made up of Elastic buckle and pit, and Elastic buckle is located on syringe, and pit is located on slide unit,
Retreat its pit of slide unit of putting in place just with Elastic buckle clamping, thus stop puncture needle tubing before push away.
This Elastic buckle is made up of the buckle of elastic suspended tongue and outstanding tongue top, near syringe sliding tray tail end edge and slip
The parallel interval of groove is emptied and allows this to empty and even worn with sliding tray " u " shape in sliding tray tail end, and this " u " shape central authorities forms one
Elastic suspended tongue, buckle be located at this elastic suspended tongue top and prominent convex in sliding tray, pit is in the push handle of Paracentesis needle holder.
Retreat the Paracentesis needle holder push handle that puts in place along sliding tray, its pit is just and this buckle clamping.
The mode of the syringe-type vacuum blood collector of another kind of safety is:
Also include a kind of telescopic protective cover, syringe and slip cap tail being set in together by fixed cover and slip cap slip
End is affixed, and Paracentesis needle holder is positioned at slip cap tail end and affixed with syringe, and Paracentesis needle holder inner chamber is annular seal space, punctures needle tubing edge sliding
Dynamic set inner chamber is axially walked and is finally fixed on Paracentesis needle holder, slip cap, syringe, puncture needle tubing, Paracentesis needle holder and blood sampling
Needle tubing or even a kind of slide unit being relatively relatively fixed set slip of blood sample collection pipe composition, with the retrogressing of slide unit
Puncture needle tubing to retract in fixed cover inner chamber.
At the end of blood sampling, pusher syringe puncture needle tubing can be made to retreat submerge in fixed cover inner chamber, now fixed cover is as wearing
The protective case of pricker pipe.
The optimization further of this mode is:
Also include a kind of non-return device, this non-return device is arranged between slide unit and fixed cover, retreats to puncture
If push away before the slide unit that needle tubing is retracted in fixed cover inner chamber is reverse will contact with the prevention of this non-return device.
So, because of the prevention of non-return device, retreat the slide unit that puts in place can not before push away.Thus both having ensured that retreat wore
Pricker pipe will not elapse out again hurts sb.'s feelings it is also possible to promote this syringe-type vacuum blood collector single use of the present invention.
Common in this non-return device aciculiform medical apparatus and instruments in the prior art, mostly can apply in the present invention
In.Here a kind of non-return device of optimization of offer of the present invention:
This non-return device is a kind of elastic symmetry closure tongue piece, be arranged in front of Paracentesis needle holder, fixed cover front bulkhead interior
In chamber, puncture needle tubing tail end and wore the closure joint portion of this closure tongue piece and be fixed on Paracentesis needle holder.
So, after puncture needle tubing is removed, tongue piece elastic reset blocks former puncture barrel outlet.
Also include a kind of drive end bearing bracket, this drive end bearing bracket be located at syringe in front of and affixed with fixed cover, drive end bearing bracket outer peripheral face with
Syringe outer peripheral face smoothly transits.
In sum, the present invention has the advantage that structure simplifies compared to existing technology, holds easy to operate, and operates
Process is extremely similar to the operation of conventional syringes, decreases medical personnel's workload and psychological burden to greatest extent, even if
Suffer from unconsciousness, restless, disoperative patient and infant patient and under the big scene of limb activity amplitude, also do not allow
It is also easy to produce maloperation, thus improve safety and the Degree of Success of operation.And the intervention further of safe shape construction, thus both protecting
The puncture needle tubing that card retreats will not elapse out again hurts sb.'s feelings it is also possible to promote this syringe-type vacuum blood collector of the present invention
Single use.
Brief description
Fig. 1 is a kind of vacuum blood collection pipe device blood sample collection pipe insert state schematic diagram in prior art.
Fig. 2 is that in prior art, view withdrawn from by a kind of vacuum blood collection pipe device blood sample collection pipe.
Fig. 3 is the schematic appearance of embodiment one syringe-type vacuum blood collector of the present invention.
Fig. 4 is the structural representation sectional plan view of the embodiment of the present invention one syringe-type vacuum blood collector.
Fig. 5 is the structural representation cutaway top view of the embodiment of the present invention one syringe-type vacuum blood collector.
Fig. 6 is the syringe cylinder structure schematic sectional front view in the embodiment of the present invention one syringe-type vacuum blood collector.
Fig. 7 is the syringe cylinder structure schematic sectional left view in the embodiment of the present invention one syringe-type vacuum blood collector.
Fig. 8 is the syringe cylinder structure schematic isometric in the embodiment of the present invention one syringe-type vacuum blood collector.
Fig. 9 is the schematic appearance of the embodiment of the present invention two syringe-type vacuum blood collector.
Figure 10 is the structural representation sectional plan view of the embodiment of the present invention two syringe-type vacuum blood collector.
Figure 11 is the structural representation cutaway top view of the embodiment of the present invention two syringe-type vacuum blood collector.
Figure 12 is the schematic diagram of state after the blood sampling of the embodiment of the present invention two syringe-type vacuum blood collector.
Figure 13 is the syringe leading section structural representation sectional plan view in the embodiment of the present invention two syringe-type vacuum blood collector.
Figure 14 is the syringe leading section structural representation section view left view in the embodiment of the present invention two syringe-type vacuum blood collector.
Figure 15 is the structural representation sectional plan view of the embodiment of the present invention three syringe-type vacuum blood collector.
Figure 16 is the structural representation top view of the embodiment of the present invention three syringe-type vacuum blood collector.
Figure 17 is the drive end bearing bracket structural representation sectional plan view in the embodiment of the present invention three syringe-type vacuum blood collector.
Figure 18 is the drive end bearing bracket structural representation sectional plan view in the embodiment of the present invention three syringe-type vacuum blood collector.
Figure 19 is the schematic diagram of state after the blood sampling of the embodiment of the present invention three syringe-type vacuum blood collector.
Below in conjunction with the accompanying drawings the present invention is described more in detail.
Label declaration:
1 blood taking needle 11 punctures needle tubing 12 blood-collecting needle tube, 13 Paracentesis needle holder, 131 boss b 132 push handle 14 and adopts
Blood needle stand 15 blood sampling sealing shroud 16 hose connector, 2 blood sample collection pipe, 21 sealant, 3 syringe 31 boss a
32 annular seal space 33 cylindrical cavity 34 touches platform 35 operation window, 36 sliding tray 37 telescopic protective cover chamber 38 short arc convex clip
Point 4 applies the wing 5 closure tongue piece 6 drive end bearing bracket, 71 fixed cover 72 slip cap.
Specific embodiment
Embodiment one:
With reference to Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, syringe-type vacuum blood collector, including vascular puncture needle tubing 11, blood-collecting needle tube
12nd, blood sample collection pipe 2 and syringe 3, syringe is a hollow barrel-type housing, is made up of medical transparent material, syringe leading section
Contract in one kind downwardly extending wedge shape, and the upper contracting end of this tapered ramp and the outer peripheral face of syringe intersect, the lower extending end of this tapered ramp
Form a kind of small boss a31 in the position near syringe outer peripheral face (i.e. near case inside edge), the setting of boss a31 central authorities is worn
Pricker pipe 11 installation through-hole, this installation through-hole be located position be Paracentesis needle holder 13, puncture needle tubing 11 tail end with syringe 3
The mode of center parallel is plugged on this Paracentesis needle holder 13, the needle point of this needle tubing and the major part of needle tubing all exposed in syringe 3
Outward.There is inside syringe 3 annular seal space 32 and a cylindrical cavity 33, wherein annular seal space 32 is located at syringe front end, punctures needle tubing 11
Tube core connect with this annular seal space 32.Blood sampling needle stand 14 be a kind of open recesses component, its side be in open recesses and with syringe 3
Front bulkhead inner seal patch is touched, and the cavity being formed is annular seal space 32, and its opposite side wall is capsule walls, after capsule walls
Side has a small boss b131, and 131 on this boss b, rear end and needle tubing major part extend back for blood-collecting needle tube 12 front end fixation
And be plugged in the pipe close of blood sample collection pipe 2, the tube core of blood-collecting needle tube 12 is connected with this annular seal space 32, blood-collecting needle tube 12 with
Cylindrical cavity 33 is coaxial.Blood-collecting needle tube 12 is coated with blood sampling sealing shroud 15, and blood sample collection pipe pipe close is provided centrally with axle
To the core bore extending to sealant 21, this core bore internal diameter is more slightly larger than blood sampling sealing shroud 15 external diameter.So, blood-collecting needle tube 12 carries same adopting
Blood sealing shroud 15 along this core bore penetrate pipe close when, blood sampling sealing shroud 15 be subject to axial compression compression radial distorted dilatating and deformable, just
Get well and this core bore inner hole wall extrusion friction, blood-collecting needle tube 12 more will not be allowed to deviate from blood sample collection pipe pipe close.Cylindrical cavity 33
Positioned at the rear of annular seal space 32 and its rear end open, blood sample collection pipe 2 pipe close in front sleeve in this cylindrical cavity 33,
The length of cylindrical cavity 32 is less than the length of blood sample collection pipe 2, is nested with the blood sample collection pipe 2 in cylindrical cavity 32
Afterbody exposed outside cylindrical cavity.Blood sample collection pipe pipe close is made up of seal rubber plug 22 and protection cap 23, seal rubber plug
22 sets of plugs in collecting pipe tube chamber, fill on the collecting pipe mouth of pipe and seal rubber plug, blood sample collection pipe 2 pipe close by protection cap 23 lid
Aft bulkhead has a sealant 21 that can be pierced through by blood-collecting needle tube 12 rear end, and sealant 21 thickness is 1.5mm, and blood sample is received
The cylindrical cavity 33 of collector 2 front end face has for piercing through this sealant 21 and space that the front blood sample collection pipe 2 pushing away houses,
Cylindrical cavity 33 inwall is circumferentially symmetrically arranged with and is adapted to the construction that place's elastic card touches with blood sample collection pipe 2 protection cap 23,
When the two is in card and touches state, before blood-collecting needle tube 12 rear end is just in sealant to be pierced through.It is one that this elastic card touches construction
Plant short arc convex clamping point 38, this short arc convex clamping point 38 and protection cap 23 are made up of elastomeric material.Puncture needle tubing tube core, annular seal space,
Blood sample collection pipe tube chamber after blood-collecting needle tube tube core and pierced sealant forms a kind of blood channel.
With reference to Fig. 3, syringe 3 is had along syringe is axially arranged on the position being adapted with blood sample collection protection of pipe lid 23
As operation window 35, this operation window 35 has two to a kind of strip grooves, and Relative distribution is in the both sides of syringe 3.
With reference to Fig. 5, puncture and be provided with a kind of tactile platform 34 on close that side outer peripheral face of syringe 3 of needle tubing 11, this tactile platform
34 bottom surfaces are provided with a kind of soft deposited wing 4, and this soft deposited wing 4 both sides has the span, and deposited wing bottom surface is in one kind and human body ancon phase
The arcs of recesses of adaptation, the deposited wing 4 bottom surface arranges viscosity glue point.
When actually used, syringe 3 procapsid is held by finger, needle tip is pierced in sufferer blood vessel, from annular seal space
After 32 observe blood back, first sending into toward in blood vessel and puncture needle tubing 11, then descending the pressure dressing wing 4, apply glue point on the wing 4 to cling in handss
On arm, hold blood sampling system without hand steered, puncture needle tubing 11 and also will not skid off blood vessel, so, medical worker can vacate both hands, side
Medical worker carry out other operations.After seeing blood back, handss gently help syringe 3 anterior, and another handss are from blood sample receipts
Collector 2 rearward end touches collecting pipe, allows blood taking needle spine break back-end sealing layer 21, blood sampling needle point passes seal rubber plug 22, due to
Suction function in collecting pipe, blood flows rapidly in collecting pipe to the sample amount requiring, if also needing to carry out multitube blood collection, one
Handss pinch syringe 3 front portion and fix blood sampling system, and another handss pass through on syringe symmetrically elongated operation window 35, pinch collecting pipe
Protective cover 23, pulls out collecting pipe 2, until the completely out collecting pipe seal rubber plug 22 of blood-collecting needle tube 12, pull-out collection of taking advantage of a situation
Manage, then change the new collecting pipe of insertion and taken a blood sample.After blood sampling terminates, the deposited wing 4 is dug in first doubling, allows glue point depart from human body skin,
Withdraw from people's body end puncture needle pipe 11, then exit blood sample collection pipe 2, because the outer blood sampling sealing shroud 15 of blood-collecting needle tube 12 is than blood sampling
Needle tubing 12 is long, therefore can guarantee that blood-collecting needle tube 12 needle point will not hurt people, and is repeatedly changing blood sample collection pipe 2 process
In, blood sampling sealing shroud 15 also acts as insertion guide effect, and blood sampling needle point will not pierce people, therefore plays safety protection function, simultaneously
Blood sampling sealing shroud 15 resilience is airtight, seals blood taking needle tube head, it is to avoid blood pollution.
The present embodiment is not described partly same as the prior art.
Embodiment two:
With reference to Fig. 9, Figure 10, Figure 11, syringe-type vacuum blood collector, including vascular puncture needle tubing 11, blood-collecting needle tube 12, blood
Sample collection tube 2 and syringe 3, syringe is a hollow barrel-type housing, is made up of medical transparent material, and syringe leading section is in one kind
Contract downwardly extending wedge shape, and the upper contracting end of this tapered ramp and the outer peripheral face of syringe intersect, and the lower extending end of this tapered ramp is near pin
The position of cylinder outer peripheral face (i.e. near case inside edge) forms a kind of small boss a31, and the setting of boss a31 central authorities punctures needle tubing 11
Installation through-hole, punctures needle tubing 11 and passes through installation through-hole and this installation through-hole rear, the Paracentesis needle holder 13 of syringe 3 inner chamber leading section
Affixed, puncture needle tubing 11 with syringe 3 center parallel but decentered distribution, the needle point of this needle tubing and the major part of needle tubing all exposed
Outside syringe 3.There is inside syringe 3 annular seal space 32 and a cylindrical cavity 33, wherein annular seal space 32 is located at syringe front end, puncture needle
The tube core of pipe 11 is connected with this annular seal space 32.Paracentesis needle holder 13 syringe 3 relatively is an individual member, by medical transparent material system
Become, be placed in the leading section of syringe 3 inner chamber, its internal closed cavity is annular seal space 32, the rear side tool of annular seal space 32 rear wall
There is a small boss b131, on this boss b131, rear end and needle tubing major part extend back and insert for blood-collecting needle tube 12 front end fixation
Put in the pipe close of blood sample collection pipe 2, the tube core of blood-collecting needle tube 12 is connected with this annular seal space 32, blood-collecting needle tube 12 and tubular
Cavity 33 is coaxial.Blood-collecting needle tube 12 is coated with blood sampling sealing shroud 15, and blood sample collection pipe pipe close is provided centrally with axially prolonging
Extend the core bore of sealant 21, this core bore internal diameter is more slightly larger than blood sampling sealing shroud 15 external diameter.So, blood-collecting needle tube 12 carries same blood sampling close
Big envelope 15 along this core bore penetrate pipe close when, blood sampling sealing shroud 15 be subject to axial compression compression radial distorted dilatating and deformable, just with
This core bore inner hole wall extrusion friction, more will not allow blood-collecting needle tube 12 deviate from blood sample collection pipe pipe close.Cylindrical cavity 33 is located at
The rear of annular seal space 32 and its rear end open, blood sample collection pipe 2 pipe close in front sleeve in this cylindrical cavity 33, tubular
The length of cavity 32 is less than the length of blood sample collection pipe 2, is nested with the tail of the blood sample collection pipe 2 in cylindrical cavity 33
Portion exposed outside cylindrical cavity 33.Blood sample collection pipe 2 pipe close is made up of seal rubber plug 22 and protection cap 23, seal rubber plug 22
Set plug in collecting pipe tube chamber, fill on the collecting pipe mouth of pipe and seal rubber plug, after blood sample collection pipe 2 pipe close by protection cap 23 lid
End wall has a sealant 21 that can be pierced through by blood-collecting needle tube 12 rear end, and sealant thickness is 1.5mm, blood sample collection pipe 2
The cylindrical cavity 33 of front end face has for piercing through this sealant 21 and space that the front blood sample collection pipe 2 pushing away houses, tubular
Cavity 33 inwall is circumferentially symmetrically arranged with and is adapted to the construction that place's elastic card touches with blood sample collection pipe 2 protection cap 23, when two
When person is in card tactile state, before blood-collecting needle tube 12 rear end is just in sealant to be pierced through.Shown in Figure 10, Figure 11 is exactly this
State.It is a kind of short arc convex clamping point 38 that this elastic card touches construction, and this short arc convex clamping point 38 and protection cap 23 are by elastomeric material system
Become.Puncture the blood sample collection pipe tube chamber composition after needle tubing tube core, annular seal space, blood-collecting needle tube tube core and pierced sealant
A kind of blood channel.
With reference to Fig. 9, Figure 12, syringe 3 side wall is axially extended with a kind of sliding tray 36 of tail end closing, Paracentesis needle holder push handle
132 dash forward passes this sliding tray 36 and is exposed at outside syringe 3.This sliding tray 36 extends to syringe 3 rear portion from syringe 3 front portion, set
Put the protection cap 23 in the blood sample collection pipe 2 in cylindrical cavity 33 to be located in the length of interval of this sliding tray 36, therefore, should
Sliding tray 36 is operation window 35 simultaneously again.The axial length of syringe 3 inner chamber is more than the length of exposed puncture needle tubing 11 outside syringe 3
Degree.Puncture needle tubing 11, Paracentesis needle holder 13, blood-collecting needle tube 12 or even blood sample collection pipe 2 form one kind can be with respect to after syringe 3
The slide unit that back skating moves.
With reference to Figure 12, at the end of blood sampling, along this sliding tray pusher Paracentesis needle holder 13 and needle tubing 11 can be punctured, until puncture needle
Pipe 11 submerges in syringe 3 inner chamber completely.Now blood sample collection pipe 2 can be extracted backward so as to depart from syringe 3.
With reference to Figure 12, Figure 13, Figure 14, also include a kind of non-return device, this non-return device is a kind of elastic symmetry closure
Tongue piece 5, is arranged in syringe 3 inner chamber in Paracentesis needle holder 13 front, punctures the closure that needle tubing 11 tail end wore this closure tongue piece 5
Joint portion is simultaneously fixed on Paracentesis needle holder 13.
So, after puncture needle tubing is removed, closure tongue piece 5 elastic reset blocks former puncture needle tubing 11 and exports.Stop, back to
Position slide unit can not before push away.Thus both ensured that the puncture needle tubing 11 retreating will not elapse out again hurting sb.'s feelings it is also possible to promote
This syringe-type vacuum blood collector single use of the present invention, will not be reused by lawless person.
With reference to Figure 10, Figure 11, puncture and a kind of soft deposited wing is provided with close that side outer peripheral face of syringe 3 of needle tubing 11
4, this soft deposited wing 4 both sides has the span, and deposited wing bottom surface is in a kind of arcs of recesses being adapted with human body ancon, and the deposited wing 4 bottom surface sets
Put viscosity glue point.
The not described part of the present embodiment is identical with embodiment one.
Most preferred embodiment:
With reference to Figure 15, Figure 16, syringe-type vacuum blood collector, including vascular puncture needle tubing 11, blood-collecting needle tube 12, blood sample
Collecting pipe 2, syringe 3, apply what the wing 4, closure tongue piece 5, drive end bearing bracket 6 and being slided by fixed cover 71 and slip cap 72 was set in together
Telescopic protective cover.Syringe 3 is a hollow cylindrical barrel-type casing, is made up of medical transparent material.Before drive end bearing bracket 6 is located at syringe 3
Fixed cover 71 in Fang Bingyu telescopic protective cover is affixed, and drive end bearing bracket 6 rear end outer peripheral face and the size light such as syringe 3 outer peripheral face slip over
Cross, drive end bearing bracket 6 leading section is in contract in one kind downwardly extending wedge shape, the upper contracting end of this tapered ramp and the outer peripheral face of drive end bearing bracket 6 rear end
Intersect, the lower extending end of this tapered ramp forms one kind in the position near drive end bearing bracket 6 outer peripheral face (i.e. near case inside edge)
The setting of small boss a31, boss a31 central authorities punctures needle tubing 11 installation through-hole, punctures needle tubing 11 and passes through installation through-hole and along slip cap
72 inner chambers are axially walked and are finally fixed on Paracentesis needle holder, and Paracentesis needle holder 13 is positioned at slip cap 72 tail end and affixed with syringe 3.
Puncture needle tubing 11 with syringe 3 center parallel but decentered distribution, the needle point of this needle tubing and the major part of needle tubing all exposed in syringe 3
Outward.There is inside syringe 3 a telescopic protective cover chamber 37, an annular seal space 32 and a cylindrical cavity 33, in the middle part of syringe 3 inner chamber, have one
Partition, is telescopic protective cover chamber 37 in front of this partition, and this partition rear is annular seal space 32 and cylindrical cavity 33, and annular seal space 32 is located at
In front of cylindrical cavity 33.The tube core puncturing needle tubing 11 is connected with this annular seal space 32.Paracentesis needle holder 13 side be in open recesses and with
On rear side of this partition of syringe 3 inner chamber, sealing paste touches, and the cavity being formed is annular seal space 32, and the opposite side wall of this annular seal space 32 is
For annular seal space rear wall, the rear side of annular seal space 32 rear wall has a small boss b131, and blood-collecting needle tube 12 front end fixation is in this boss
On b131, rear end and needle tubing major part extend back and are plugged in the pipe close of blood sample collection pipe 2, the pipe of blood-collecting needle tube 12
Core is connected with this annular seal space 32, and blood-collecting needle tube 12 is coaxial with cylindrical cavity 33.Blood taking needle 12 is coated with blood sampling sealing shroud 15, blood
Liquid sample collection tube pipe close is provided centrally with axially extending to the core bore of sealant 21, outside this core bore internal diameter ratio blood sampling sealing shroud 15
Footpath is slightly larger.So, blood-collecting needle tube 12 carry with blood sampling sealing shroud 15 along this core bore penetrate pipe close when, blood sampling sealing shroud 15 is subject to axially
Extruding compression radial distorted dilatating and deformable, just with this core bore inner hole wall extrusion friction, more will not allow blood-collecting needle tube 12 deviate from blood
Liquid sample collection tube pipe close.Cylindrical cavity 33 is located at the rear of annular seal space 32 and its rear end opens, and blood sample collection pipe 2 is managed
In front screw-casing in this cylindrical cavity 33, the length of cylindrical cavity 32 is less than the length of blood sample collection pipe 2 to plug, is nested with
The afterbody of the blood sample collection pipe 2 in cylindrical cavity 32 exposed outside cylindrical cavity.Blood sample collection pipe pipe close is by sealing
Plug 22 and protection cap 23 form, 22 sets of seal rubber plug plug in collecting pipe tube chamber, protection cap 23 lid plug in the collecting pipe mouth of pipe and
On seal rubber plug, blood sample collection pipe 2 pipe close aft bulkhead has a sealant 21 that can be pierced through by blood-collecting needle tube 12 rear end,
Sealant thickness is 1.5mm, the cylindrical cavity 33 of blood sample collection pipe 2 front end face have for pierce through this sealant 21 and before push away
Blood sample collection pipe 2 house space.Cylindrical cavity 33 inwall is circumferentially symmetrically arranged with to be protected with blood sample collection pipe 2
The construction that at protecting cover 23 adaptation, elastic card touches, when the two is in card and touches state, blood-collecting needle tube 12 rear end is just in be pierced through
Before sealant.Shown in Figure 15 is exactly this state.This elastic card touch construction be a kind of short arc convex clamping point, this short arc convex clamping point with
And protection cap 23 is made up of elastomeric material.After puncturing needle tubing tube core, annular seal space, blood-collecting needle tube tube core and pierced sealant
Blood sample collection pipe tube chamber forms a kind of blood channel.
With reference to Figure 19, slip cap 72, syringe 3, puncture needle tubing 11, Paracentesis needle holder 13 and blood-collecting needle tube 12 or even blood sample
This collecting pipe 2 forms a kind of slide unit being relatively relatively fixed set 71 slip.At the end of blood sampling, can pusher syringe 3, slip cap
72 are relatively fixed set 71 with the retrogressing of syringe 3 slides backward, and is also gradually retracted into solid also with the puncture needle tubing 11 drawn back
Surely cover in 71 inner chambers, until submerging in fixed cover 71 inner chamber completely.Now blood sample collection pipe 2 can be extracted backward so as to
Depart from syringe 3.
With reference to Figure 17, Figure 18, also include a kind of non-return device, this non-return device is a kind of elastic symmetry closure tongue piece 5,
It is arranged in drive end bearing bracket 6 inner chamber at boss a31 rear, puncture the closure joint portion that needle tubing 11 tail end wore this closure tongue piece 5
And be finally fixed on Paracentesis needle holder 13.
So, after puncture needle tubing is removed, closure tongue piece 5 elastic reset blocks former puncture needle tubing 11 and exports.Prevention backs to
Position slide unit can not before push away.Thus both ensured that the puncture needle tubing 11 retreating will not elapse out again hurting sb.'s feelings it is also possible to promote
This syringe-type vacuum blood collector single use of the present invention, will not be reused by lawless person.
With reference to Figure 15, Figure 16, puncture and a kind of soft deposited wing is provided with close that side outer peripheral face of syringe 3 of needle tubing 11
4, this soft deposited wing 4 both sides has the span, and deposited wing bottom surface is in a kind of arcs of recesses being adapted with human body ancon, and the deposited wing 4 bottom surface sets
Put viscosity glue point.
The not described part of the present embodiment is identical with embodiment one.
Claims (25)
1. syringe-type vacuum blood collector, including vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe it is characterised in that
Also include a kind of syringe, the tail end of vascular puncture needle tubing bias in the way of near syringe outer peripheral face is plugged on syringe leading section
Paracentesis needle holder on, the needle point of this needle tubing and the major part of needle tubing all exposed outside syringe, there is inside syringe an annular seal space
With a cylindrical cavity, before wherein annular seal space is located at cylindrical cavity, the tube core of vascular puncture needle tubing is connected with this annular seal space, blood taking needle
The front end of pipe is installed with this capsule walls, and rear end and needle tubing major part extend back and be plugged on the pipe of blood sample collection pipe
In plug, the tube core of blood-collecting needle tube is connected with this annular seal space, and cylindrical cavity is located at the rear of annular seal space and its rear end opens, blood
Sample collection tube pipe close is nested with this cylindrical cavity in removable mode front, and blood sample collection pipe pipe close aft bulkhead has
There is a sealant that can be pierced through by blood-collecting needle tube rear end, the cylindrical cavity of blood sample collection pipe front end face has for piercing through this
Sealant and space that the front blood sample collection tube capacity pushing away is put, vascular puncture needle tubing tube core, annular seal space, blood-collecting needle tube tube core with
And the blood sample collection pipe tube chamber after pierced sealant forms a kind of blood channel；Thus worn with syringe rigid attachment blood vessel
Pricker pipe, blood-collecting needle tube and blood sample collection pipe, make three not only Construction integration and also form a kind of traditional needle cylinder structure；
Be there is in described cylindrical cavity the construction being adapted with blood sample collection pipe pipe close, it is with blood sample collection pipe pipe close
Be connected the annexation being formed compared with consolidation, and blood sample collection Guan Jing thus constructs loading and takes out cylindrical cavity；
Cylindrical cavity inwall is circumferentially symmetrically arranged with and is adapted to the construction that place's elastic card touches with blood sample collection pipe pipe close, when two
When person is in card tactile state, before blood-collecting needle tube rear end is just in sealant to be pierced through, empty through construction tubular is touched by this elastic card
Cavity wall and pipe close form elastic urgent connection status, but this elastic drag is less than the manual axial force applying；This elastic card
Tactile construction is a kind of short arc convex clamping point, and this short arc convex clamping point or blood sample collection pipe pipe close are made up of elastomeric material；This
Short arc convex clamping point is a kind of salient point dashed forward on the convex inwall in cylindrical cavity, thickness low shallow and also in front and back side all have and be easy to pipe close and creep
The arc-shaped transition passed through.
2. syringe-type vacuum blood collector according to claim 1 it is characterised in that near syringe outer peripheral face arrangement and forward
The vascular puncture needle tubing extending and the center parallel of syringe.
3. syringe-type vacuum blood collector according to claim 1 is it is characterised in that the anterior annular seal space of syringe is a kind of returning
Haemocoele, the position that syringe outer peripheral face is adapted with this annular seal space has the perspective portion of observable blood back.
4. syringe-type vacuum blood collector according to claim 1 is it is characterised in that syringe leading section is in stretch under contracting in one kind
Wedge shape, vascular puncture needle tubing is affixed with syringe in the lower extending end head of this wedge shape, and the perspective portion of observable blood back is located at this wedge shape
Inclined-plane on.
5. syringe-type vacuum blood collector according to claim 4 is it is characterised in that the upper contracting end of this tapered ramp and syringe
Outer peripheral face intersect, the lower extending end of this tapered ramp forms a kind of small boss a, vascular puncture in the position near syringe outer peripheral face
It is affixed with syringe that needle tubing tail end passes through this boss a.
6. syringe-type vacuum blood collector according to claim 1 has a small boss it is characterised in that covering after annular seal space
B, the fixation of blood-collecting needle tube front end is on this boss b.
7. the syringe-type vacuum blood collector according to claim 1 or 6 it is characterised in that blood-collecting needle tube with syringe concentric cloth
Put, and extend along syringe center back.
8., it is characterised in that cylindrical cavity has front bulkhead, this is close for syringe-type vacuum blood collector according to claim 1
Between envelope chamber bonnet and cylindrical cavity front bulkhead, there is interval, the blood-collecting needle tube extending rearwardly through this cylindrical cavity front bulkhead is same
When bearing on this cylindrical cavity front bulkhead.
9. syringe-type vacuum blood collector according to claim 1 is it is characterised in that blood-collecting needle tube is coated with blood sampling sealing
Set, blood sample collection pipe pipe close is provided centrally with axially extending to the core bore of sealant, and this core bore internal diameter is than blood sampling sealing shroud
External diameter is slightly larger.
10. syringe-type vacuum blood collector according to claim 1 is it is characterised in that blood sample collection pipe pipe close seals
Thickness degree is 0.5-3mm.
11. syringe-type vacuum blood collectors according to claim 10 are it is characterised in that blood sample collection pipe pipe close seals
Thickness degree is 0.5-1.5mm.
12. syringe-type vacuum blood collectors according to claim 1 are it is characterised in that blood sample collection pipe is plugged on cylinder
In shape cavity, the construction being adapted is a kind of construction of interference fits connection in size.
13. syringe-type vacuum blood collectors according to claim 1 are it is characterised in that be adapted with pipe close in cylindrical cavity
Construction have two kinds, one of which be the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity touch
Construction, the construction that another kind is adapted is the l shape groove being produced on pipe close outer peripheral face and is produced on cylindrical cavity inwall
Prominent salient point, this prominent salient point enters l shape groove from the termination of the l shape groove vertical section positioned at pipe close front end face and can slide wherein, when
When cylindrical cavity inwall and pipe close elastic card touch, in the vertical section that this prominent salient point has been enter in l shape groove but not yet to reach this vertical
The bottom of section, before now blood-collecting needle tube rear end is just in sealant to be pierced through, when sinciput blood sample collection pipe is to blood taking needle
After pipe pierces through sealant, this prominent salient point just reaches the bottom of this vertical section, now rotates blood sample collection pipe, and this prominent salient point enters
Enter the cross break section in l shape groove.
14. syringe-type vacuum blood collectors according to claim 1 are it is characterised in that blood sample collection pipe screw thread connects
In cylindrical cavity, the construction being adapted is a kind of threaded connection configuration.
15. syringe-type vacuum blood collectors according to claim 1 are it is characterised in that blood sample collection pipe pipe close is by close
Sealing plug and protection cap composition, in collecting pipe tube chamber, protection cap lid plug is in the collecting pipe mouth of pipe and fluid sealant for fluid sealant plug sleeve plug
Beyond the Great Wall.
16. syringe-type vacuum blood collectors according to claim 1 are it is characterised in that the length of cylindrical cavity is less than blood
The length of sample collection tube, be nested with afterbody in the blood sample collection pipe in cylindrical cavity exposed outside cylindrical cavity.
17. syringe-type vacuum blood collectors according to claim 1 it is characterised in that syringe with blood sample collection pipe
It is contained in pipe close and has a kind of strip grooves as operation window along syringe is axially arranged on the position being adapted in syringe, this operation window is altogether
There are two, Relative distribution is in the both sides of syringe.
18. syringe-type vacuum blood collectors according to claim 1 are it is characterised in that Paracentesis needle holder is located at syringe front bulkhead
In the syringe inner chamber of inner side, Paracentesis needle holder inner chamber is annular seal space, barrel sidewall is axially extended with after a kind of tail end is provided with
Move back the sliding tray of obstacle, Paracentesis needle holder push handle is dashed forward and passed this sliding tray and be exposed at outside syringe, and the axial length of syringe inner chamber is more than
The length of exposed puncture needle tubing outside syringe, punctures needle tubing, Paracentesis needle holder, blood-collecting needle tube or even collecting pipe composition a kind of permissible
Syringe retreats the slide unit sliding relatively, and the retrogressing puncture needle tubing with slide unit retracts in syringe inner chamber.
19. syringe-type vacuum blood collectors according to claim 1 are it is characterised in that Paracentesis needle holder is located at syringe front bulkhead
In the syringe inner chamber of inner side, Paracentesis needle holder inner chamber is annular seal space, barrel sidewall is axially extended with after a kind of tail end is provided with
Move back the sliding tray of obstacle, Paracentesis needle holder push handle is dashed forward and passed this sliding tray and be exposed at outside syringe, and the axial length of syringe inner chamber is more than
The length of exposed puncture needle tubing outside syringe, punctures needle tubing, Paracentesis needle holder, blood-collecting needle tube or even collecting pipe composition a kind of permissible
Syringe retreats the slide unit sliding relatively, and the retrogressing puncture needle tubing with slide unit retracts in syringe inner chamber, also includes
There is a kind of non-return device, this non-return device is arranged between slide unit and syringe, retreat and be retracted in syringe to puncture needle tubing
If push away before the slide unit in chamber is reverse will contact with the prevention of this non-return device.
20. syringe-type vacuum blood collectors according to claim 19 are it is characterised in that this non-return device is that a kind of elasticity is right
Claim closure tongue piece, be arranged in the syringe inner chamber in front of Paracentesis needle holder, puncture the closure that needle tubing tail end wore this closure tongue piece
Joint portion is simultaneously fixed on Paracentesis needle holder, and after puncture needle tubing is removed, tongue piece elastic reset blocks former puncture barrel outlet.
21. syringe-type vacuum blood collectors according to claim 19 it is characterised in that this non-return device by Elastic buckle and
Pit forms, and Elastic buckle is located on syringe, and pit is located on slide unit, retreats its pit of slide unit of putting in place just and bullet
Property buckle clamping, thus stop puncture needle tubing before push away.
22. syringe-type vacuum blood collectors according to claim 21 it is characterised in that this Elastic buckle by elastic suspended tongue with
And the buckle composition on outstanding tongue top, empty and allow this to empty along the interval parallel with sliding tray near syringe sliding tray tail end
Sliding tray tail end is even worn with sliding tray " u " shape, and this " u " shape central authorities forms an elastic suspended tongue, and buckle is located at this elastic suspended tongue top
Hold and dash forward convex in sliding tray, pit is located in the push handle of Paracentesis needle holder, retreats, along sliding tray, the Paracentesis needle holder push handle that puts in place, its
Pit is just and this buckle clamping.
23. syringe-type vacuum blood collectors according to claim 1 it is characterised in that also include a kind of by fixed cover and
The telescopic protective cover that slip cap slip is set in together, syringe is affixed with slip cap tail end, and Paracentesis needle holder is located at slip cap tail end
And affixed with syringe, Paracentesis needle holder inner chamber is annular seal space, punctures needle tubing and axially walks along slip cap inner chamber and be finally fixed at
On Paracentesis needle holder, slip cap, syringe, puncture needle tubing, Paracentesis needle holder and blood-collecting needle tube or even blood sample collection pipe form one
Plant and be relatively relatively fixed the slide unit that set slides, the retrogressing puncture needle tubing with slide unit retracts in fixed cover inner chamber.
24. syringe-type vacuum blood collectors according to claim 1 it is characterised in that also include a kind of by fixed cover and
Telescopic protective cover and a kind of non-return device that slip cap slip is set in together, syringe is affixed with slip cap tail end, Paracentesis needle holder
Positioned at slip cap tail end and affixed with syringe, Paracentesis needle holder inner chamber is annular seal space, punctures needle tubing and axially wears along slip cap inner chamber
Go and be finally fixed on Paracentesis needle holder, slip cap, syringe, puncture needle tubing, Paracentesis needle holder and blood-collecting needle tube or even blood sample
This collecting pipe composition is a kind of to be relatively fixed the slide unit that set slides relatively, and the retrogressing puncture needle tubing with slide unit retracts to
In fixed cover inner chamber, this non-return device is arranged between slide unit and fixed cover, retreats and is retracted into fixed cover to puncture needle tubing
If push away before the slide unit in inner chamber is reverse will contact with the prevention of this non-return device.
25. syringe-type vacuum blood collectors according to claim 24 are it is characterised in that this non-return device is that a kind of elasticity is right
Claim closure tongue piece, be arranged in front of Paracentesis needle holder, in the inner chamber of fixed cover front bulkhead, puncture needle tubing tail end and wore this and close tongue
The closure joint portion of piece is simultaneously fixed on Paracentesis needle holder, and after puncture needle tubing is removed, tongue piece elastic reset blocks former puncture needle tubing and goes out
Mouthful.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/079597 WO2014019201A1 (en) | 2012-08-02 | 2012-08-02 | Syringe type vacuum blood collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104470438A CN104470438A (en) | 2015-03-25 |
| CN104470438B true CN104470438B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280074567.2A Active CN104470438B (en) | 2012-08-02 | 2012-08-02 | Syringe type vacuum blood collector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104470438B (en) |
| WO (1) | WO2014019201A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893142B (en) * | 2019-04-16 | 2023-11-17 | 上海金塔医用器材有限公司 | Flexible blood sampling device and rigid blood sampling device |
| CN110236567B (en) * | 2019-06-18 | 2022-05-31 | 杭州医学院 | Blood sampling device |
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| CN202776320U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Syringe type vacuum blood collecting device |
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- 2012-08-02 CN CN201280074567.2A patent/CN104470438B/en active Active
- 2012-08-02 WO PCT/CN2012/079597 patent/WO2014019201A1/en active Application Filing
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| CN1035893A (en) * | 1988-01-08 | 1989-09-27 | 奥尔弗斯欧州股份有限公司 | Appliance designed for single use for taking samples of liquids |
| CN1137746A (en) * | 1993-12-16 | 1996-12-11 | C.A.格林尔和索恩有限公司 | Holding fixture for blood sample collection tube of blood-taking device |
| US6152901A (en) * | 1998-07-03 | 2000-11-28 | Altair | Blood sampling device with vacuum tube |
| CN1463760A (en) * | 2002-06-19 | 2003-12-31 | 陈晖纮 | Multifunctional safety vacuum blood drawing ergonomic syringe |
| CN202776320U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Syringe type vacuum blood collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104470438A (en) | 2015-03-25 |
| WO2014019201A1 (en) | 2014-02-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Syringe vacuum blood sampler Effective date of registration: 20230227 Granted publication date: 20170125 Pledgee: Changting Rural Credit Cooperative Association Pledgor: Zhang Jianming Registration number: Y2023990000132 |