CN104470433B - Monoblock type vacuum blood sampler with inlying catheter - Google Patents

Monoblock type vacuum blood sampler with inlying catheter Download PDF

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Publication number
CN104470433B
CN104470433B CN201280074561.5A CN201280074561A CN104470433B CN 104470433 B CN104470433 B CN 104470433B CN 201280074561 A CN201280074561 A CN 201280074561A CN 104470433 B CN104470433 B CN 104470433B
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blood
pipe
cylindrical cavity
blood sample
tube
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CN104470433A (en
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张建铭
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Bestway Changting Medical Devices Co ltd
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Individual
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154Devices using pre-evacuated means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150732Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/15074Needle sets comprising wings, e.g. butterfly type, for ease of handling
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150351Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150503Single-ended needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/0612Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/0612Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0637Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)

Abstract

A kind of monoblock type vacuum blood sampler with inlying catheter, needle stand of taking a blood sample(3)With cylindrical cavity(31), blood-collecting needle tube(12)It is fixed on its antetheca and extends rearward to cylindrical cavity(31)In, blood sample collection pipe(2)Pipe close is plugged on cylindrical cavity(31)In, and front end face and cylindrical cavity(31)The gap thickness having between front bulkhead is less than sealant(21)Thickness, cylindrical cavity(31)It is interior to have and blood sample collection pipe(2)Connecting structure that pipe close is adapted, more consolidation, blood sample collection pipe(2)Load and taking-up cylindrical cavity through thus constructing(31), facilitate blood sample collection pipe(2)It will not fall off out when upright, indwelling needle catheter tube core, soft extension tube(13)Tube core, blood-collecting needle tube(12)Tube core and pierced sealant(21)Blood sample collection pipe afterwards(2)Tube chamber constitutes blood channel, after blood sampling can the temporary retention conduit to be infused.

Description

Monoblock type vacuum blood sampler with inlying catheter
Technical field
It is particularly a kind of whole with inlying catheter the present invention relates to vacuum blood collection apparatus outside a kind of human body in clinical treatment Body formula vacuum blood sampler.
Background technology
A kind of vacuum blood sampler of the prior art as shown in Figure 1 and Figure 2, including blood taking needle and blood sample collection pipe 2, blood taking needle one end is vascular puncture needle tubing 11, and the other end is to carry gum cover blood-collecting needle tube 12, and centre is connected by hose connector 13 Connect.The device first pulls out protective case on the needle tubing of two, vascular puncture needle tubing 11 is pierced into sufferer arm vein in blood sampling, Enter Deng blood in blood sampling conduit, medical worker pushes down the needle handle of the vascular puncture needle tubing 11 with little finger immediately, with anti-puncture Needle tubing comes off;Because the seal rubber plug of blood sample collection pipe 2 is very thick, the pinpoint inclined plane angle of blood-collecting needle tube 12 is big, and needle point is blunt, adds The sealed rubber pipe of blood-collecting needle tube 12 elastic force when being compressed axially is very big, therefore needs the both hands blood-collecting needle tube 12 could to be pierced into blood In sample collection tube, operation is quite inconvenient.Due to being negative pressure, the speed that blood is flowed into the collecting pipe in blood sample collection pipe 2 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 Extracted in collector 2.Now the outer soft rubber sleeve of blood-collecting needle tube 12 restores, and encases blood-collecting needle tube, prevents blood outflow pollution ring in conduit Border, the intubation before then repeating;If need not draw blood again, puncture needle tubing 11 on human body must be first extracted, then cover 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 The split of collector 2 is constructed, and blood collection procedure need to care for two needle tubing of hose connector 13 simultaneously, cause complex operation cumbersome, Duo Gecao Make step or even need both hands and also need to impose certain and just right power could to complete the extraction and insertion of needle tubing, and this When can not just care for the needle tubing to other end, so involve again and need the cooperating of more than one medical personnel.It is this The presence of complicated cumbersome operating procedure and two needle tubing, virtually adds medical personnel's workload and psychological burden, Suffer from unconsciousness, restless, disoperative patient and patient infant and under the big scene of limb activity amplitude, easily produce Raw maloperation.It is this to swing and the puncture needle tubing for puncturing into blood vessel easily produces swing in piercing process and blood collection procedure Directly result in the damage for puncturing needle tubing needle point to blood vessel, in the case where mismatching the big scene of patient limb movable amplitude, this damage The damage that can not almost avoid and cause is bigger.
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 Easily, it is difficult the monoblock type vacuum blood sampler with inlying catheter of injured blood vessel.
The purpose of the present invention is realized by following approach.
Monoblock type vacuum blood sampler with inlying catheter, including be accompanied with the puncture needle tubing of operation handle etc., soft prolong Long tube, blood-collecting needle tube and blood sample collection pipe, its composition are characterized by, and also include a kind of blood sampling needle stand, blood taking needle seat tool There is cylindrical cavity, cylindrical cavity tail end is opened, and blood-collecting needle tube is fixed on its front bulkhead and extended rearward in cylindrical cavity, blood Liquid sample collection tube pipe close in the way of plug preceding can be plugged in the cylindrical cavity, and the length of cylindrical cavity is less than blood The length of sample collection tube, the afterbody for the blood sample collection pipe being plugged in cylindrical cavity is exposed outside cylindrical cavity, blood There is gap A, blood sample collection pipe pipe close aft bulkhead has one between sample collection tube front end face and cylindrical cavity front bulkhead The sealant that can be pierced through by blood-collecting needle tube rear end, this sealant thickness, which is less than in gap A thickness, cylindrical cavity, to be had and blood The connecting structure that sample collection tube pipe close is adapted, its connection to be formed compared with consolidation that is connected with blood sample collection pipe pipe close Thus relation, blood sample collection Guan Jing constructs loading and takes out cylindrical cavity, and it is a kind of remaining needle to puncture needle tubing, and remaining needle is led Blood sample collection pipe tube chamber composition one after pipe tube core, soft extension tube tube core, blood-collecting needle tube tube core and pierced sealant Plant blood channel.
So, blood sample collection pipe is simultaneously connected to one by increase blood sampling needle stand with blood sampling needle stand and blood-collecting needle tube in advance Rise, whole blood-taking device is integrally formed construction, above-mentioned cylindrical cavity not only facilitates blood sample with the connecting structure that is adapted to of pipe close The loading and taking-up of this collecting pipe, while the annexation to be formed compared with consolidation that is connected again with blood sample collection pipe pipe close, The blood sample collection pipe being so conveniently inserted in cylindrical cavity when upright it is difficult for drop-off out, and give from sense of touch installation The insertion degree of blood sample collection pipe in cylindrical cavity, so that convenient install.And needle tubing will be punctured and be substituted for remaining needle, This remaining needle can be general medical remaining needle, so, and needle point only plays the work of puncture vessel and guiding catheter intravasation With once seeing blood back, needle point is blood vessel of dropping back out, by flexible catheter retention in the blood vessel as the passage of blood sampling;And tight Under anxious state, after blood sampling also can the temporary retention conduit to be infused.
When actually used, remaining needle needle point is pierced into human vas first, waits and sees after blood back, remaining needle push handle of dropping back, Needle point is retracted a little in conduit, reduction punctures height, and conduit is sent into blood vessel, then proceed to recession needle point until conduit it Afterwards, now, blood enters soft extension tube tube core from conduit tube core, waits blood to be full of soft extension tube, gently pressure is solid for a hand little finger Determine conduit, remaining four refers to and pinch blood sampling needle stand, and because pipe close sealant is than relatively thin, another hand touches blood sample from bottom and received Collector, allows blood-collecting needle tube needle point to pass through fluid sealant, into collecting pipe, until touched with cylindrical cavity front bulkhead can not for collecting pipe Move onward again;Due to suction function in collecting pipe, blood is flowed rapidly into after desired sample amount in blood collection tube, if needing collection Multitube blood sample, can pinch blood sampling needle stand, easily exit blood sample collection pipe, be inserted into new collection blood sampling tube.Blood sampling knot Shu Hou, first withdraws from people's body end conduit, then exits blood collection tube, because blood sampling needle stand is than blood taking needle pipe range, therefore can guarantee that blood sampling Needle tubing needle point will not hurt people, and during blood collection tube is changed repeatedly, blood sampling needle stand also acts as insertion guide effect, Blood sampling needle point will not pierce people, therefore play safety protection function, while blood-collecting needle tube seal pipe resilience is closed, seal blood-collecting 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, appearance simple to operate Phenomenon that is easy and preventing needle tip injured blood vessel, reduces phlebitis generation and metal allergy is put and answered.
The purpose of the present invention can also be realized by following approach.
The length of indwelling needle catheter is 18-22 millimeters.
The length of general medical retention wire guide is longer, because the conduit in this patent is mainly used in blood sampling, through trying repeatedly Test, be optimal using the length.
Also include a kind of infusion connector, this infusion connector is fixed in soft extension tube tail end, soft extension tube is infused by this Joint and the blood sampling dismantled and assembled connection of needle stand.
Under the state of emergency, after blood sampling, the present invention can be used to be infused.The setting of infusion connector, facilitates and infuses The connection of device, in use, hose connector can be clamped with flow-stopping clip, blocks blood flow path, blood sampling is separated from infusion connector Needle stand, inserts pre-prepd transfusion device butt joint at once, opens flow-stopping clip in extension tube, recovers fluid passage, so that it may carry out Infusion treatment.
This infusion connector can be conventional straight joint, needleless joint.
Can also further it be optimized on the present invention:
When cylindrical cavity and both pipe closes, which 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 hold the pre-inserted degree of blood-collecting needle tube in the sense of touch of insertion.
The connecting structure of the adaptation has multiple choices, such as barrel chamber internal diameter inside contracts the size mode of rear interference fits, under It is a kind of optimum choice to state one kind:
The construction being adapted in cylindrical cavity with pipe close 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 tactile.
It can be a kind of short arc convex clamping point that this elastic card, which 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, which touches construction, can cause the elastic urgent connection status of cylindrical cavity inwall and pipe close, but apply During axial force, blood sample collection pipe can still do with respect to cylindrical cavity and before push away or retreat freely.
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 front and rear side, in order to which creeping for pipe close is passed through.
Other adaptation connecting structure progress cooperations can also separately be increased on the basis of the tactile construction of this elastic card to be made To reach more preferable using effect, the following is using cooperatively that one of which optimizes:
The construction being adapted in cylindrical cavity with pipe close 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 tactile, another construction being 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 enters 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 and tactile pipe close elastic card, the prominent salient point is had been enter into the vertical section in L-shaped groove But the bottom of the vertical section is not yet reached, now blood-collecting needle tube rear end is just in before sealant to be pierced through, when sinciput blood sample This collecting pipe to blood-collecting needle tube is pierced through after sealant, 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 enters in L-shaped groove.
So, the free degree that the cross break section in L-shaped groove can be with locked blood sample collection pipe in the axial direction, makes it adopt relatively Blood needle stand 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 is 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 Radial distorted dilatating and deformable is compressed, 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 0.5-3mm, preferably 0.5-1.5mm.
So blood-collecting needle tube can easily wear out sealant.
Blood sampling needle stand is 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.
The state of blood volume in blood back, observation blood sample collection pipe can be so observed by this operation window, also observable blood The insert state and insertion degree of liquid sample collection tube, can also first be pinched when extracting blood sample collection pipe through this operation window Hold pipe close and firmly exit blood sample collection pipe backward, so as to collect tube body and pipe close when preventing from exiting blood sample collection pipe Disengaging.
In summary, the present invention has the following advantages that compared with prior art:Increase blood sampling needle stand is simultaneously advance by blood sample Collecting pipe links together with blood sampling needle stand and blood-collecting needle tube, whole blood-taking device is integrally formed construction, and cylindrical cavity The tactile construction of the interior construction being adapted with pipe close or even elastic card had both conveniently been inserted in the blood sample collection Guan Zhi in cylindrical cavity It will not fall off out immediately, and the insertion degree of the blood sample collection pipe from being given in sense of touch installed in cylindrical cavity, So as to convenient installation.Whole device structure simplifies and simple to operate easy.And needle tubing will be punctured and be substituted for remaining needle, it is therefore prevented that The phenomenon of needle tip injured blood vessel, reduces phlebitis generation and metal allergy is put and answered, in emergency situations, also can be temporary after blood sampling When the indwelling conduit to be infused.
Brief description of the drawings
Fig. 1 is a kind of vacuum blood sampler blood sample collection pipe insert state schematic diagram in the prior art.
Fig. 2 is that a kind of vacuum blood sampler blood sample collection pipe withdraws from view in the prior art.
Fig. 3 is the schematic appearance of the monoblock type vacuum blood sampler of the present invention with inlying catheter.
Fig. 4 is the structural representation of the monoblock type vacuum blood sampler of the present invention with inlying catheter.
Fig. 5 is the view after the monoblock type vacuum blood sampler blood sampling of the present invention with inlying catheter.
Fig. 6 is the structural representation front view of blood sampling needle stand in the embodiment of the present invention one.
Fig. 7 is the structural representation top view of blood sampling needle stand in the embodiment of the present invention one.
Fig. 8 is the structural representation of blood sample collection protection of pipe lid in the embodiment of the present invention two.
Fig. 9 is the structural representation stereogram of blood sample collection protection of pipe lid in the embodiment of the present invention two.
Figure 10 is the structural representation stereogram of blood sample collection protection of pipe lid in preferred embodiment.
Label declaration:
The blood sampling blood sample collection pipe 21 of sealing shroud 2 of hose connector 14 of 11 12 blood-collecting needle tube of puncture needle tubing 13 is sealed Blood sampling needle stand 31 tubular of 22 protection cap of layer, 23 seal rubber plug, 24 core bore 25L shape groove vertical section 26L shape grooves cross break section 3 is empty The flow-stopping clip of 4 infusion connector of chamber 32 operation window, 33 short arc convex clamping point 5
More description in detail is carried out to the present invention below in conjunction with the accompanying drawings.
Embodiment
Embodiment one:
Reference picture 3, Fig. 4, the monoblock type vacuum blood sampler with inlying catheter, including puncture needle tubing 11, hose connector 13rd, blood-collecting needle tube 12, blood sample collection pipe 2, blood sampling needle stand 3 and a kind of infusion connector 4.It is a kind of closing to puncture needle tubing 11 Type remaining needle, with the puncture needle with blood back groove, the length of indwelling needle catheter is 20 millimeters, and the remaining needle of this in figure, which has, applies the wing, But also can be without the deposited wing.The catheter block of 13 one end connecting puncture needle pipe of hose connector 11, other end connection infusion connector 4, this transfusion Joint 4 is that a kind of straight joint is fixed in the soft tail end of extension tube 13, and soft extension tube 13 can with blood sampling needle stand 3 by this infusion connector 4 Dismounting connection.Needle stand 3 of taking a blood sample has cylindrical cavity 31, and cylindrical cavity tail end is opened, and blood-collecting needle tube 12 is fixed on its front bulkhead And extend rearward in cylindrical cavity 31, the pipe close of blood sample collection pipe 2 is preceding can be plugged on the tubular in the way of plug In cavity 31, the length of cylindrical cavity 31 is less than the length of blood sample collection pipe 2, is plugged on the blood sample in cylindrical cavity The afterbody of collecting pipe 2 is exposed outside cylindrical cavity 31, has between the front end face of blood sample collection pipe 2 and the front bulkhead of cylindrical cavity 31 There is gap A, the pipe close aft bulkhead of blood sample collection pipe 2 has a sealant 21 that can be pierced through by the rear end of blood-collecting needle tube 12, and this is close The thickness of sealing 21, which is less than, has the construction being adapted with the pipe close of blood sample collection pipe 2 in gap A thickness, cylindrical cavity 31, Blood sample after indwelling needle catheter tube core, the tube core of hose connector 13, the tube core of blood-collecting needle tube 12 and pierced sealant 21 is received The tube chamber of collector 2 constitutes a kind of blood channel.
Reference picture 4, the pipe close of blood sample collection pipe 2 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.The front end of said blood sample collection tube 2 Face is protection cap front end face.The sealant 21 of the pipe close aft bulkhead of said blood sample collection tube 2 is located on seal rubber plug.Sealing Thickness degree is 1.0mm.
The construction being adapted in reference picture 6, Fig. 7, cylindrical cavity 31 with pipe close is a kind of two inwalls along cylindrical cavity The tactile construction of circumferential symmetrical elastic card.It is a kind of short arc convex clamping point 33, this short arc convex clamping point 33 that this elastic card, which touches construction, It is made up of elastomeric material.When the protective case 22 of blood sample collection pipe 2 is touched with this short arc convex clamping point 33 card, after blood-collecting needle tube 12 End is just in before sealant 21 to be pierced through.
Reference picture 6, Fig. 7, blood sampling needle stand 3 are adapted with being contained in the pipe close of blood sample collection pipe 2 in cylindrical cavity 31 Position on along blood sampling, needle stand 3 is axially arranged has a kind of strip grooves as operation window 32, this operation window 32 has two, relative point Cloth is in the both sides of cylindrical cavity 31.This operation window 32 misplaces 90 degree with above-mentioned short arc convex clamping point 33 to be distributed.
Reference picture 4, Fig. 5, blood-collecting needle tube 12 are 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 internal diameter of core bore 24 is more slightly larger than the blood sampling external diameter of sealing shroud 14.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 by axial compression compression radial distorted expand Deformation is opened, just with this inner hole wall extrusion friction of core bore 24, will not more allow blood-collecting needle tube to deviate from seal rubber plug.
Reference picture 5, infusion connector 4 can also be a kind of needleless joint, infuse and connect for catheter retaining.
When actually used, remaining needle needle point is pierced into human vas first, waits and sees after blood back, remaining needle push handle of dropping back, Needle point is retracted a little in conduit, reduction punctures height, and conduit is sent into blood vessel, then proceed to recession needle point until conduit it Afterwards, now, blood enters soft extension tube tube core from conduit tube core, waits blood to be full of soft extension tube, gently pressure is solid for a hand little finger Determine conduit, remaining four refers to and pinch blood sampling needle stand 3, and because pipe close sealant 21 is than relatively thin, another hand touches blood sample from bottom This collecting pipe 2, allows the needle point of blood-collecting needle tube 12 to enter through sealant 21 in collecting pipe, until collecting pipe and the front end of cylindrical cavity 31 Wall, which is touched, to move onward again;Due to suction function in collecting pipe, blood is flowed rapidly into blood collection tube 2 to desired sample amount Afterwards, if multitube blood sample need to be gathered, can pinch blood sampling needle stand 3, and through operation window 32 pinch blood sample collection pipe 2 by its Easily exit, be inserted into new collection blood sampling tube.After blood sampling terminates, people's body end inlying catheter is first withdrawn from, then exit blood collection tube 2.Transfusion is such as needed, then can close hose connector 13 with the folder of flow-stopping clip 5, blood collection tube 2 is exited, then exits blood sampling needle stand 3, now Transfusion operation can be carried out by infusion connector 4.Because blood sampling needle stand 3 is longer than blood-collecting needle tube 12, therefore it can guarantee that blood-collecting needle tube 12 Needle point will not hurt people, and during blood collection tube is changed repeatedly, blood sampling needle stand 3 also acts as insertion guide effect, adopts Blood needle point will not pierce people, therefore play safety protection function, while the resilience of sealing shroud 14 of taking a blood sample is closed, seal blood-collecting needle tube 12 Head, it is to avoid blood pollution.
The not described part of the present embodiment is same as the prior art.
Embodiment two:
The construction being adapted in reference picture 8, Fig. 9, cylindrical cavity 31 with pipe close is connected by short arc convex clamping point 33 and a kind of screw thread Contexture is connect, the male and female screw thread in the threaded connection configuration is produced in protection cap 22 and the internal perisporium of cylindrical cavity 31. First blood sample collection pipe 2 is threaded into cylindrical cavity 31, stops screwing in when touching with the card of short arc convex clamping point 33, now takes a blood sample The rear end of needle tubing 12 is just in before sealant 21 to be pierced through.During blood sampling, spiral can wear blood taking needle tube top sealant 21 again.
The not described part of the present embodiment is identical with embodiment one.
Most preferred embodiment:
The construction being adapted in reference picture 10, cylindrical cavity with pipe close is that a kind of a plurality of inwalls along cylindrical cavity are circumferential Distribution or the tactile construction of symmetrical elastic card, it is a kind of short arc convex clamping point that this elastic card, which touches construction, this short arc convex clamping point with And blood sample collection pipe pipe close is made up of elastomeric material.Another construction being adapted is to be produced on the periphery of pipe close protection cap 22 L-shaped groove on face and the prominent salient point being produced on cylindrical cavity inwall, 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 slided wherein, and when cylindrical cavity inwall and tactile pipe close protection cap elastic card, this is dashed forward Salient point has been enter into the vertical section 25 in L-shaped groove but not yet reaches the bottom of the vertical section 25, and now the rear end of blood-collecting needle tube 12 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 enters 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, make its 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. the monoblock type vacuum blood sampler with inlying catheter, including be accompanied with the puncture needle tubing of operation handle, soft extension tube, Blood-collecting needle tube and blood sample collection pipe, it is characterised in that also include a kind of blood sampling needle stand, blood taking needle seat tool has tubular empty Chamber, cylindrical cavity tail end is opened, and blood-collecting needle tube is fixed on the front bulkhead of cylindrical cavity and extended rearward in cylindrical cavity, blood Liquid sample collection tube pipe close in the way of plug preceding can be plugged in the cylindrical cavity, and the length of cylindrical cavity is less than blood sample The length of this collecting pipe, the afterbody for the blood sample collection pipe being plugged in cylindrical cavity is exposed outside cylindrical cavity, blood sample There is gap A, blood sample collection pipe pipe close aft bulkhead can with one between this collecting pipe front end face and cylindrical cavity front bulkhead The sealant pierced through by blood-collecting needle tube rear end, this sealant thickness, which is less than in gap A thickness, cylindrical cavity, to be had and blood sample The connecting structure that this collecting pipe pipe close is adapted, the connecting structure is connected to be formed compared with consolidation with blood sample collection pipe pipe close Annexation, blood sample collection Guan Jing thus construct loading and take out cylindrical cavity, puncture needle tubing be a kind of remaining needle, stay Put the blood sample collection pipe tube chamber after wire guide tube core, soft extension tube tube core, blood-collecting needle tube tube core and pierced sealant Constitute a kind of blood channel;Thus blood sample collection pipe is linked together with blood sampling needle stand and blood-collecting needle tube, made whole Blood-taking device is integrally formed construction;
When cylindrical cavity and both pipe closes, which are in, is adapted to connection status, blood-collecting needle tube rear end is just in sealant to be pierced through Before, the construction being adapted in cylindrical cavity with pipe close is that a kind of a plurality of inwalls along cylindrical cavity are circumferentially distributed or symmetrical The tactile construction of elastic card, touch construction cylindrical cavity inwall with pipe close through thus elastic card and form elastic urgent connection status, but This elastic drag is less than the axial force applied manually;It is a kind of short arc convex clamping point, this short arc convex clamping point that this elastic card, which touches construction, It is made up with blood sample collection pipe pipe close of elastomeric material;This short arc convex clamping point is a kind of prominent convex on cylindrical cavity inwall Salient point, thickness is low shallow and front and rear side has and is easy to pipe close to creep the arc-shaped transition passed through.
2. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that remaining needle is led The length of pipe is 18-22 millimeters.
3. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that also include A kind of infusion connector, this infusion connector is fixed in soft extension tube tail end, and soft extension tube can with blood sampling needle stand by this infusion connector Dismounting connection.
4. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that cylindrical cavity The interior construction being adapted with pipe close is that a kind of circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity is touched Construction, another construction being adapted is the L-shaped groove being produced on pipe close outer peripheral face and is produced on cylindrical cavity inwall Prominent salient point, the prominent salient point enters 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 and pipe close elastic card are touched, the prominent salient point has been enter into the vertical section in L-shaped groove but not yet reaches this and erects The bottom of straight section, now blood-collecting needle tube rear end is just before sealant to be pierced through, when sinciput blood sample collection pipe to blood sampling Needle tubing is pierced through after sealant, and the prominent salient point just reaches the bottom of the vertical section, now rotates blood sample collection pipe, the prominent salient point Into the cross break section in L-shaped groove.
5. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that blood sample Collecting pipe is threaded in cylindrical cavity, and the construction being adapted is a kind of threaded connection configuration.
6. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that blood sample Collecting pipe pipe close is made up of seal rubber plug and protection cap, and fluid sealant plug sleeve plug is in collecting pipe tube chamber, and protection cap lid plug is being collected On the pipe mouth of pipe and seal rubber plug.
7. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that blood sample Collecting pipe pipe close is made up of seal rubber plug and protection cap, and fluid sealant plug sleeve plug is in collecting pipe tube chamber, and protection cap lid plug is being collected On the pipe mouth of pipe and seal rubber plug, the construction being adapted with cylindrical cavity is arranged in protection cap.
8. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that blood-collecting needle tube Blood sampling sealing shroud is coated with, blood sample collection pipe pipe close is provided centrally with axially extending to the core bore of sealant, this core bore Internal diameter than blood sampling sealing shroud external diameter it is slightly larger, blood-collecting needle tube band with blood sampling sealing shroud along this core bore penetrate pipe close when, take a blood sample sealing shroud Radial distorted dilatating and deformable is compressed by axial compression, with this core bore inner hole wall extrusion friction.
9. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that blood sample Collecting pipe pipe close sealant thickness is 0.5-3mm.
10. the monoblock type vacuum blood sampler according to claim 9 with inlying catheter, it is characterised in that blood sample This collecting pipe pipe close sealant thickness is 0.5-1.5mm.
11. the monoblock type vacuum blood sampler according to claim 1 with inlying catheter, it is characterised in that blood taking needle Seat is with being contained on the position being adapted in cylindrical cavity along blood sampling that needle stand is axially arranged one in blood sample collection pipe pipe close Strip grooves are planted as operation window, this operation window has two, and Relative distribution is in the both sides of cylindrical cavity.
CN201280074561.5A 2012-08-02 2012-08-02 Monoblock type vacuum blood sampler with inlying catheter Active CN104470433B (en)

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PCT/CN2012/079582 WO2014019192A1 (en) 2012-08-02 2012-08-02 Integral vacuum blood collection apparatus with indwelling catheter

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CN109124654A (en) * 2018-10-24 2019-01-04 山东亨洁医用包装科技有限公司 A kind of vacuum blood collection tube
CN110974257B (en) * 2019-12-31 2024-06-11 广西医科大学第一附属医院 Internal jugular vein indwelling blood sample collection device and method for tree shrew
CN111904436B (en) * 2020-08-06 2022-11-11 宁波汉科高分子材料有限公司 Blood taking needle sheath
CN112545511A (en) * 2020-12-09 2021-03-26 云南省精神病医院 Collection system for human blood concentration control of being convenient for

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FR2625810B1 (en) * 1988-01-08 1990-12-21 Allflex Europ Sa DEVICE FOR TAKING LIQUIDS FOR SINGLE USE
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Patentee before: Zhang Jianming