CN104470436B - Integral vacuum blood collection apparatus - Google Patents
Integral vacuum blood collection apparatus Download PDFInfo
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- CN104470436B CN104470436B CN201280074564.9A CN201280074564A CN104470436B CN 104470436 B CN104470436 B CN 104470436B CN 201280074564 A CN201280074564 A CN 201280074564A CN 104470436 B CN104470436 B CN 104470436B
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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
-
- 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
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150267—Modular design or construction, i.e. subunits are assembled separately before being joined together or the device comprises interchangeable or detachable modules
-
- 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
- A61B5/150732—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
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150473—Double-ended needles, e.g. used with pre-evacuated sampling tubes
-
- 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
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150725—Procedure for removing protection means at the time of piercing removal procedure linked to further actions, e.g. cocking of the piercing device, which indicate that the piercing device is used or tempered
-
- 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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Abstract
An integral vacuum blood collection apparatus comprises a blood collection needle seat (3). The blood collection needle seat (3) has a cylindrical cavity (31),and a tail end of the cylindrical cavity (31) is open. A blood collection needle tube (12) is fixed at a front wall of the tail end and extends backwards into the cylindrical cavity (31). A pipe plug of a blood sample collection pipe (2) is inserted in front in the cylindrical cavity (31) in a pluggable and unpluggable manner. By adding the blood collection needle seat (3) and connecting, in advance, the blood sample collection pipe (2) to the blood collection needle seat (3) and blood collection needle tube (12), the apparatus makes the whole blood collection apparatus be in an integrated structure. A structure matching with the pipe plug in the cylindrical cavity (31) enables the blood sample collection pipe (2) inserted in the cylindrical cavity (31) not to fall off when the blood sample collection pipe (2) is placed upright, and indicates, in a touch manner, the insertion degree of the blood sample collection pipe (2) mounted in the cylindrical cavity (31), thereby facilitating the mounting. The whole apparatus is simplified in structure and easy to operate.
Description
Technical field
The present invention relates to the outer vacuum blood collection apparatus of a kind of human body in clinical treatment, particularly a kind of monoblock type vacuum blood collection dress
Put.
Background technology
A kind of vacuum blood sampler of the prior art as shown in Figure 1 and Figure 2, including blood taking needle 1 and blood sample collection pipe
2,1 one end of blood taking needle is vascular puncture needle tubing 11, and the other end is that, with gum cover blood-collecting needle tube 12, centre is connected by PVC conduits 13
Connect.The device is first pulled out protective case on the needle tubing of two, vascular puncture needle tubing 11 is pierced in sufferer arm vein in blood sampling,
Enter in blood sampling conduit Deng blood, medical worker pushes down the needle handle of the vascular puncture needle tubing 11 immediately with little finger, with anti-puncture
Needle tubing comes off；As 2 seal rubber plug of blood sample collection pipe is very thick, 12 pinpoint inclined plane angle of blood-collecting needle tube is big, and needle point is blunt, adds
Blood-collecting needle tube 12 sealed rubber pipe elastic force when being compressed axially is very big, therefore needs both hands blood-collecting needle tube 12 could be pierced into blood
In sample collection tube, operation quite inconvenience.Due to being negative pressure in blood sample collection pipe 2, blood flows into the speed in the collecting pipe
Degree is very fast.It is 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 from receipts
Extract in collector 2.Now 12 outer soft rubber sleeve of blood-collecting needle tube restores, and encases blood-collecting needle tube, and in preventing conduit, blood flows out pollution ring
Border, the intubation before then repeating；If need not draw blood again, puncture needle tubing 11 on human body must be first extracted, then is covered
Upper needle tip shield, 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 and receives
2 split of collector is constructed, and blood collection procedure need to be cared for two needle tubing of conduit 13 simultaneously, cause complex operation loaded down with trivial details, multiple operation steps
It is rapid even to need both hands and also needing to impose certain and just right power just to complete extracting and inserting for needle tubing, and now
The needle tubing of other end cannot be cared for, so the cooperating for needing more than one medical personnel is involved again.This complexity
The presence of loaded down with trivial details operating procedure and two needle tubing, virtually increased medical personnel's workload and psychological burden, meet with
Mistake is produced easily to unconsciousness, restless, disoperative patient and infant patient under the big scene of limb activity amplitude
Operation.
The content of the invention
It is an object of the invention to overcome weak point of the prior art, and provide a kind of structure simplify, it is simple to operate
Easy monoblock type vacuum blood sampler.
The purpose of the present invention is realized by following approach.
Monoblock type vacuum blood sampler, including be accompanied with the puncture needle tubing of operation handle etc., hose connector, blood-collecting needle tube and
Blood sample collection pipe, its composition are characterized by, and also include a kind of blood sampling needle stand, and blood taking needle seat tool has cylindrical cavity, tubular
Cavity tail end is opened, and blood-collecting needle tube is fixed on its front bulkhead and extends rearward in cylindrical cavity, blood sample collection pipe pipe
Front can be plugged in the cylindrical cavity in the way of plug, the length of cylindrical cavity is less than the length of blood sample collection pipe to plug
Degree, the afterbody of the blood sample collection pipe being plugged in cylindrical cavity are exposed outside cylindrical cavity, blood sample collection pipe front end
There is between face and cylindrical cavity front bulkhead gap A, blood sample collection pipe pipe close aft bulkhead can be by after blood-collecting needle tube with one
The sealant that terminal spine is worn, thickness of this sealant thickness less than gap A, in cylindrical cavity with blood sample collection pipe pipe close
The connecting structure being adapted, its annexation to be formed compared with consolidation that is connected with blood sample collection pipe pipe close, blood sample
Collecting pipe loads via this construction and takes out cylindrical cavity, vascular puncture needle tubing tube core, hose connector tube core, blood-collecting needle tube tube core
And the blood sample collection pipe tube chamber after pierced sealant constitutes a kind of blood channel.
So, increase blood sampling needle stand and blood sample collection pipe is connected to into one with blood sampling needle stand and blood-collecting needle tube in advance
Rise, make whole blood-taking device be integrally formed construction.Above-mentioned cylindrical cavity not only facilitates blood sample to receive with the construction that is adapted to of pipe close
The loading and taking-up of collector, while and the annexation to be formed compared with consolidation that is connected with blood sample collection pipe pipe close, so
The blood sample collection pipe that is conveniently inserted in cylindrical cavity when upright it is difficult for drop-off out, and give installed in cylinder from sense of touch
The insertion degree of the blood sample collection pipe in shape cavity, so as to convenient installation.
When actually used, needle tubing will be punctured first and will be pierced in human vas, wait blood full of soft extension tube, the little thumb of hands
Refer to that light pressure is fixed and puncture needle tubing, remaining four refers to and pinch blood sampling needle stand, as pipe close sealant is than relatively thin, another handss are light from bottom
Blood sample collection pipe is pushed away, blood-collecting needle tube needle point is allowed through fluid sealant, in collecting pipe, until before collecting pipe and cylindrical cavity
End wall is touched and cannot be moved onward again；Due to suction function in collecting pipe, blood is flowed rapidly in blood collection tube to the sample for requiring
After amount, if multitube blood sample need to be gathered, blood sampling needle stand can be pinched, easily exit blood sample collection pipe, be inserted into new collection
Blood sampling tube.After blood sampling terminates, people's body end puncture needle pipe is first withdrawn from, then exits blood collection tube, needle stand compares blood taking needle due to taking a blood sample
Pipe range, therefore can guarantee that blood-collecting needle tube needle point will not hurt people, and also during blood collection tube is changed repeatedly, blood sampling needle stand is also
Insertion guide effect is played, blood sampling needle point will not pierce people, therefore play safety protection function, while sealing shroud resilience of taking a blood sample is close
Close, seal blood taking needle tube head, it is to avoid blood pollution.
As can be seen here, the present invention becomes that two body of the prior art is discrete and be integrated construction, and structure simplifies and operates simple
It is single easy.
The purpose of the present invention can also be realized by following approach.
When cylindrical cavity and both pipe closes are in is adapted to connection status, blood-collecting needle tube rear end is just in sealing to be pierced through
Before layer.
So it is easy to the pre-inserted degree of blood-collecting needle tube is held in the sense of touch of insertion.
The connecting structure of the adaptation has multiple choices, and such as barrel chamber internal diameter inside contracts the size mode of rear interference fits, under
It is a kind of optimized choice to state one kind：
The construction being adapted with pipe close in cylindrical cavity is that a kind of a plurality of inwalls along cylindrical cavity are circumferentially distributed or right
The construction for claiming the elastic card of distribution to touch.
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 elastic urgent connection status 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 before push away freely or retreat.
This short arc convex clamping point be exactly as its name suggests it is a kind of dash forward the convex salient point on cylindrical cavity inwall, thickness it is low shallow and
There is arc-shaped transition side in front and back, passes through in order to creeping for pipe close.
Can be made with separately increasing other adaptation connecting structure on the basis of touching construction in this elastic card and carrying out cooperation
To reach more preferable using effect, using cooperatively for one of which optimization is the following is：
The construction being adapted with pipe close in cylindrical cavity is that a kind of a plurality of inwalls along cylindrical cavity are circumferentially distributed or right
The construction for claiming the elastic card of distribution to touch, the construction that another kind is adapted is the L-shaped groove and making being produced on pipe close outer peripheral face
Prominent salient point on cylindrical cavity inwall, the prominent salient point enter L-shaped groove from the termination of the L-shaped 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, the prominent salient point is had been enter in the vertical section in L-shaped groove
But the bottom of the vertical section is not yet reached, before now blood-collecting needle tube rear end is just in sealant to be pierced through, when sinciput blood sample
This collecting pipe is pierced through after sealant to blood-collecting needle tube, and the prominent salient point just reaches the bottom of the vertical section, now rotates blood sample
Collecting pipe, the cross break section that the prominent salient point is entered in L-shaped groove.
So, the degree of freedom that the cross break section in L-shaped groove can be with locked blood sample collection pipe in the axial direction so as to respect to pin
Cylinder can neither before push away and can not retreat.
Blood sample collection pipe can also be connected with cylindrical cavity by this way：
Blood sample collection pipe screw thread is connected in cylindrical cavity, and the construction being adapted is a kind of threaded connection configuration.
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.
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 are more slightly larger than blood sampling sealing shroud external diameter.
So, blood-collecting needle tube band with blood sampling sealing shroud 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, will not more allow blood-collecting needle tube to deviate from seal rubber plug.
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.
Blood sampling needle stand is being contained on the position being adapted in cylindrical cavity along blood taking needle with blood sample collection pipe pipe close
Seat is axially arranged to have a kind of strip grooves as operation window, and this operation window has two, and Relative distribution is in the both sides of cylindrical cavity.
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 and insertion degree of liquid sample collection tube, also first can pinch through this operation window when blood sample collection pipe is extracted
Hold pipe close and firmly exit blood sample collection pipe backward, collect during blood sample collection pipe tube body and pipe close so as to prevent from exiting
Disengaging.
In sum, the present invention is had the advantage that compared to existing technology：Increase blood sampling needle stand and in advance by blood sample
Collecting pipe is linked together with blood sampling needle stand and blood-collecting needle tube, makes whole blood-taking device be integrally formed construction, and cylindrical cavity
The construction that the interior construction being adapted with pipe close or even elastic card are touched both conveniently had been inserted in the blood sample collection Guan Zhi in cylindrical cavity
Will not fall off out immediately, and the insertion degree of the blood sample collection pipe in cylindrical cavity given from sense of touch,
So as to convenient installation.Whole device structure simplifies and simple to operate easy.
Description of the drawings
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 a kind of vacuum blood collection pipe device blood sample collection pipe withdraws from view in prior art.
Fig. 3 is the outward appearance schematic front view of monoblock type vacuum blood sampler of the present invention.
Fig. 4 is the structural representation left view of monoblock type vacuum blood sampler of the present invention.
Fig. 5 is monoblock type vacuum blood sampler blood-collecting needle tube insert state schematic diagram of the present invention.
Fig. 6 is that monoblock type vacuum blood sampler blood-collecting needle tube of the present invention withdraws from view.
Fig. 7 is the structural representation front view of blood sampling needle stand in the embodiment of the present invention one.
Fig. 8 is the structural representation top view of blood sampling needle stand in the embodiment of the present invention one.
Fig. 9 is the structural representation of blood sample collection pipe in the embodiment of the present invention one.
Figure 10 is the structural representation of blood sample collection protection of pipe lid in the embodiment of the present invention two.
Figure 11 is the structural representation axonometric chart of blood sample collection protection of pipe lid in the embodiment of the present invention two.
Figure 12 is the structural representation axonometric chart of blood sample collection protection of pipe lid in preferred embodiment.
Label declaration：
11 puncture 12 blood-collecting needle tube of needle tubing, 13 hose connector, 14 blood sampling 2 blood sample collection pipe 21 of sealing shroud
25 L-shaped groove vertical section of sealant 22 protection cap, 23 seal rubber plug, 24 core bore, 26 L-shaped groove cross break section 3 is taken a blood sample
31 cylindrical cavity of needle stand, 32 operation window, 33 short arc convex clamping point.
Below in conjunction with the accompanying drawings the present invention is carried out more to describe in detail.
Specific embodiment
Embodiment one：
With reference to Fig. 3, Fig. 4, monoblock type vacuum blood sampler, including the puncture needle tubing 11 for being accompanied with operation handle etc., soft company
Adapter 13, blood-collecting needle tube 12, blood sample collection pipe 2 and a kind of blood sampling needle stand 3, blood sampling needle stand 3 have cylindrical cavity 31, cylinder
Shape cavity tail end is opened, and blood-collecting needle tube 12 is fixed on its front bulkhead and extends rearward in cylindrical cavity 31, and blood sample is received
Front can be plugged in the cylindrical cavity 31 in the way of plug, the length of cylindrical cavity 31 is less than blood sample to 2 pipe close of collector
The length of this collecting pipe 2, the afterbody of the blood sample collection pipe 2 being plugged in cylindrical cavity are exposed outside cylindrical cavity 31, blood
There is between 31 front bulkhead of 2 front end face of liquid sample collection tube and cylindrical cavity gap A, 2 pipe close aft bulkhead of blood sample collection pipe
With a sealant 21 that can be pierced through by 12 rear end of blood-collecting needle tube, thickness of this 21 thickness of sealant less than gap A, cylindrical cavity
With the construction being adapted with 2 pipe close of blood sample collection pipe in 31,11 tube core of vascular puncture needle tubing, 13 tube core of hose connector,
2 tube chamber of blood sample collection pipe after 12 tube core of blood-collecting needle tube and pierced sealant 21 constitutes a kind of blood channel.
With reference to Fig. 9,2 pipe close of blood sample collection pipe is made up of seal rubber plug 23 and protection cap 22,23 sets of plugs of seal rubber plug
In collecting pipe tube chamber, the lid plug of protection cap 22 is on the collecting pipe mouth of pipe and seal rubber plug 23.2 front end of said blood sample collection tube
Face is protection cap front end face.The sealant 21 of 2 pipe close aft bulkhead of said blood sample collection tube is located on seal rubber plug.Sealing
21 thickness of layer are 1.0MM.
With reference to Fig. 7, Fig. 8, the construction being adapted with pipe close in cylindrical cavity 31 is a kind of two inwalls along cylindrical cavity
The construction that circumferential symmetrical elastic card is touched.It is a kind of short arc convex clamping point 33 that this elastic card touches construction, this short arc convex clamping point 33
It is made up of elastomeric material.When the protective case 22 of blood sample collection pipe 2 is touched with this card of short arc convex clamping point 33, after blood-collecting needle tube 12
End is just before sealant 21 to be pierced through.
Blood sampling needle stand 3 be contained in 2 pipe close of blood sample collection pipe on the position be adapted in cylindrical cavity 31 along adopting
Blood needle stand 3 is axially arranged to have a kind of strip grooves as operation window 32, and this operation window 32 has two, and Relative distribution is in cylindrical cavity
31 both sides.This operation window 32 is misplaced 90 degree with above-mentioned short arc convex clamping point 33 and is distributed.
With reference to Fig. 5, Fig. 6, blood-collecting needle tube 12 is coated with blood sampling sealing shroud 14, and blood sample collection pipe pipe close is centrally disposed
There is the core bore 24 for axially extending to sealant 21, this 24 internal diameter of core bore is more slightly larger than blood sampling 14 external diameter of sealing shroud.So, blood-collecting needle tube
12 band with blood sampling sealing shroud 14 along this core bore 24 penetrate pipe close when, blood sampling sealing shroud 14 be subject to axial compression compression radial distorted expand
Deformation is opened, just with this 24 inner hole wall extrusion friction of core bore, will not more allow blood-collecting needle tube to deviate from seal rubber plug.
When actually used, needle tubing 11 being punctured first and being pierced in human vas, wait blood full of soft extension tube, a handss are little
Thumb gently presses fixed puncture needle tubing 11, and remaining four finger pinches blood sampling needle stand 3, as pipe close sealant 21 is than relatively thin, another handss
Blood sample collection pipe 2 is touched from bottom, allows 12 needle point of blood-collecting needle tube to enter in collecting pipe through sealant 21, until collecting pipe
Touch and cannot move onward again with 31 front bulkhead of cylindrical cavity；Due to suction function in collecting pipe, blood flows rapidly into blood collecting
In pipe 2 to the sample amount for requiring, if multitube blood sample need to be gathered, blood sampling needle stand 3 can be pinched, and blood is pinched through operation window 32
Which is easily exited by liquid sample collection tube 2, is inserted into newly collecting blood sampling tube.After blood sampling terminates, people's body end puncture needle pipe is first withdrawn from
11, then blood collection tube 2 is exited, due to taking a blood sample, needle stand 3 is longer than blood-collecting needle tube 12, therefore can guarantee that 12 needle point of blood-collecting needle tube will not be hindered
To people, and during blood collection tube is changed repeatedly, blood sampling needle stand 3 also acts as insertion guide effect, and blood sampling needle point will not
People is pierced, therefore plays safety protection function, while 14 resilience of sealing shroud of taking a blood sample is closed, seal blood-collecting needle tube 12, it is to avoid blood
Liquid pollutes.
The not described part of the present embodiment is same as the prior art.
Embodiment two：
With reference to Figure 10, Figure 11, the construction being adapted with pipe close in cylindrical cavity 31 is by short arc convex clamping point 33 and a kind of screw thread
Connecting structure is constituted, and the male and female screw thread in the threaded connection configuration is produced in 31 internal perisporium of protection cap 22 and cylindrical cavity
On.First blood sample collection pipe 2 is threaded in cylindrical cavity 31, stops screwing in, now when touching with the card of short arc convex clamping point 33
12 rear end of blood-collecting needle tube is just before sealant 21 to be pierced through.During blood sampling, sealing can be worn in blood-collecting needle tube top by spiral again
Layer 21.
The not described part of the present embodiment is identical with embodiment one.
Most preferred embodiment：
It is a kind of a plurality of inwall circumferences along cylindrical cavity with reference to the construction being adapted with pipe close in Figure 12, cylindrical cavity
The construction that distribution or symmetrical elastic card are touched, it is a kind of short arc convex clamping point that this elastic card touches construction, this short arc convex clamping point with
And blood sample collection pipe pipe close is made up of elastomeric material.The construction that another kind is adapted is to be produced on 22 periphery of pipe close protection cap
L-shaped groove and the prominent salient point being produced on cylindrical cavity inwall on face, the prominent salient point are erected from the L-shaped groove positioned at pipe close front end face
The termination of straight section 25 enters L-shaped groove and can slide wherein, and when cylindrical cavity inwall is touched with pipe close protection cap elastic card, this is dashed forward
The bottom of the vertical section 25 is reached during salient point has been enter into the vertical section 25 in L-shaped groove but not yet, now 12 rear end of blood-collecting needle tube is proper
Before sealant 21 to be pierced through, after sinciput blood sample collection pipe 2 to blood-collecting needle tube 12 pierces through sealant 21, this is prominent convex
Point just reaches the bottom of the vertical section 25, now rotates blood sample collection pipe 2, the cross break section that the prominent salient point is entered in L-shaped groove
26.So, the cross break section 26 in L-shaped groove and the prominent salient point coordinate can with locked blood sample collection pipe 2 in the axial direction from
By spending so as to relative blood sampling needle stand 3 can neither before push away and can not retreat.
The not described part of the present embodiment is identical with embodiment one.
Claims (11)
1. monoblock type vacuum blood sampler, including the puncture needle tubing, hose connector, blood-collecting needle tube and the blood that are accompanied with operation handle
Sample collection tube, it is characterised in that also include blood sampling needle stand, blood taking needle seat tool has cylindrical cavity, and cylindrical cavity tail end is opened,
Blood-collecting needle tube is fixed on cylindrical cavity front bulkhead and extends rearward in cylindrical cavity, blood sample collection pipe pipe close it is front with
Can the mode of plug be plugged in the cylindrical cavity, the length of cylindrical cavity is planted less than the length of blood sample collection pipe
The afterbody of the blood sample collection pipe in cylindrical cavity is exposed outside cylindrical cavity, blood sample collection pipe front end face and tubular
There is between cavity front bulkhead gap A, blood sample collection pipe pipe close aft bulkhead can be pierced through by blood-collecting needle tube rear end with one
Sealant, thickness of this sealant thickness less than gap A, with being adapted with blood sample collection pipe pipe close in cylindrical cavity
Connecting structure, its annexation to be formed compared with consolidation that is connected with blood sample collection pipe pipe close, blood sample collection Guan Jing
Thus construction loads and takes out cylindrical cavity, punctures needle tubing tube core, hose connector tube core, blood-collecting needle tube tube core and is pierced close
Blood sample collection pipe tube chamber after sealing constitutes a kind of blood channel；Blood sample collection pipe pipe close is by seal rubber plug and protection
Lid composition, in collecting pipe tube chamber, protection cap lid plug is on the collecting pipe mouth of pipe and seal rubber plug for fluid sealant plug sleeve plug；
When cylindrical cavity and both pipe closes are in is adapted to connection status, blood-collecting needle tube rear end is just in sealant to be pierced through
Before；It is the circumferentially distributed elastic card of a plurality of inwalls along cylindrical cavity with a kind of construction being adapted of pipe close that cylindrical cavity is interior
Tactile construction, the construction that is adapted of another kind are the L-shaped grooves that are produced on pipe close outer peripheral face and are produced on cylindrical cavity inwall
On prominent salient point, the prominent salient point enters from the termination of the L-shaped groove vertical section positioned at pipe close front end face and L-shaped groove can slide wherein
Dynamic, when cylindrical cavity inwall is touched with pipe close elastic card, reaching during the prominent salient point has been enter into the vertical section in L-shaped groove but not yet should
The bottom of vertical section, now blood-collecting needle tube rear end just before sealant to be pierced through, when sinciput blood sample collection pipe is to adopting
After blood needle tubing pierces through sealant, the prominent salient point just reaches the bottom of the vertical section, now rotates blood sample collection pipe, and this is prominent convex
Point is into the cross break section in L-shaped groove.
2. monoblock type vacuum blood sampler according to claim 1, it is characterised in that the connecting structure of the adaptation is a kind of
Barrel chamber internal diameter inside contracts the size mode of rear interference fits.
3. monoblock type vacuum blood sampler according to claim 1, it is characterised in that is adapted with pipe close in cylindrical cavity
Construction be a kind of circumferentially distributed elastic card of a plurality of inwalls along cylindrical cavity touch construction, via this elastic card touch construction
Cylindrical cavity inwall forms elastic urgent connection status, but this elastic drag less than the axial force for applying manually with pipe close.
4. monoblock type vacuum blood sampler according to claim 3, it is characterised in that it is a kind of short that this elastic card touches construction
Arc convex clamping point, this short arc convex clamping point or blood sample collection pipe pipe close are made up of elastomeric material.
5. monoblock type vacuum blood sampler according to claim 4, it is characterised in that this short arc convex clamping point is a kind of prominent
The convex salient point on cylindrical cavity inwall, thickness is low shallow and side has and is easy to pipe close to creep the arc-shaped transition passed through in front and back.
6. monoblock type vacuum blood sampler according to claim 1, 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.
7. monoblock type vacuum blood sampler according to claim 1, 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, the construction being adapted with cylindrical cavity is arranged in protection cap.
8. monoblock type vacuum blood sampler according to claim 1, it is characterised in that it is close that blood-collecting needle tube is coated with blood sampling
Big envelope, blood sample collection pipe pipe close are provided centrally with axially extending to the core bore of sealant, and this core bore internal diameter is than blood sampling sealing
Set external diameter it is slightly larger, blood-collecting needle tube band with blood sampling sealing shroud along this core bore penetrate pipe close when, blood sampling sealing shroud be subject to axial compression pressure
Contracting radial distorted dilatating and deformable, with this core bore inner hole wall extrusion friction.
9. monoblock type vacuum blood sampler according to claim 1, it is characterised in that blood sample collection pipe pipe close is sealed
Thickness degree is 0.5mm-3mm.
10. monoblock type vacuum blood sampler according to claim 9, it is characterised in that blood sample collection pipe pipe close is close
Seal coat thickness is 0.5mm-1.5mm.
11. monoblock type vacuum blood samplers according to claim 1, it is characterised in that blood sampling needle stand with blood sample
It is contained in collecting pipe pipe close on the position being adapted in cylindrical cavity along blood sampling that needle stand is axially arranged there are a kind of strip grooves as behaviour
Make window, this operation window has two, and Relative distribution is in the both sides of cylindrical cavity.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/079601 WO2014019204A1 (en) | 2012-08-02 | 2012-08-02 | Integral vacuum blood collection apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104470436A CN104470436A (en) | 2015-03-25 |
| CN104470436B true CN104470436B (en) | 2017-04-26 |
Family
ID=50027127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280074564.9A Active CN104470436B (en) | 2012-08-02 | 2012-08-02 | Integral vacuum blood collection apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104470436B (en) |
| WO (1) | WO2014019204A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141255A (en) * | 2019-06-19 | 2019-08-20 | 北京光耀世纪医疗科技有限公司 | Hemostix |
| AT523531B1 (en) * | 2020-05-05 | 2021-09-15 | Univ Wien Med | Device for connecting a cannula to a container |
| CN113893399A (en) * | 2021-08-27 | 2022-01-07 | 周成洪 | Hemodialysis container for nephrology department |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL31211A (en) * | 1967-12-05 | 1973-01-30 | Ims Ltd | Blood sampling tube holder |
| US4140108A (en) * | 1977-08-10 | 1979-02-20 | Becton, Dickinson And Company | Blood collection assembly |
| CN2598513Y (en) * | 2003-01-22 | 2004-01-14 | 刘余厚 | Vacuum blood sampling test tube |
| CN2936144Y (en) * | 2006-08-09 | 2007-08-22 | 刘余厚 | Blood-taking holder |
| CN202776324U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Integrated vacuum blood collecting device |
| CN202776323U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Integral type vacuum blood collecting device with indwelling catheter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256524A (en) * | 1967-12-05 | 1971-12-08 | ||
| FR2625810B1 (en) * | 1988-01-08 | 1990-12-21 | Allflex Europ Sa | DEVICE FOR TAKING LIQUIDS FOR SINGLE USE |
-
2012
- 2012-08-02 WO PCT/CN2012/079601 patent/WO2014019204A1/en active Application Filing
- 2012-08-02 CN CN201280074564.9A patent/CN104470436B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL31211A (en) * | 1967-12-05 | 1973-01-30 | Ims Ltd | Blood sampling tube holder |
| US4140108A (en) * | 1977-08-10 | 1979-02-20 | Becton, Dickinson And Company | Blood collection assembly |
| CN2598513Y (en) * | 2003-01-22 | 2004-01-14 | 刘余厚 | Vacuum blood sampling test tube |
| CN2936144Y (en) * | 2006-08-09 | 2007-08-22 | 刘余厚 | Blood-taking holder |
| CN202776324U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Integrated vacuum blood collecting device |
| CN202776323U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Integral type vacuum blood collecting device with indwelling catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104470436A (en) | 2015-03-25 |
| WO2014019204A1 (en) | 2014-02-06 |
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Effective date of registration: 20230918 Address after: Building S3 #, Medical Equipment Industrial Park, Industrial New Area, No. 66 Tingzhou Avenue South Road, Cewu Town, Changting County, Longyan City, Fujian Province, 366309 Patentee after: Bestway (Changting) Medical Devices Co.,Ltd. Address before: No. 27, Lane 45, Kaohsiung Road, Huangpu District, Shanghai, 200011 Patentee before: Zhang Jianming |