CN105208935A - Needle cylinder type vacuum blood sampler with jacking needle tube - Google Patents
Needle cylinder type vacuum blood sampler with jacking needle tube Download PDFInfo
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- CN105208935A CN105208935A CN201380075600.8A CN201380075600A CN105208935A CN 105208935 A CN105208935 A CN 105208935A CN 201380075600 A CN201380075600 A CN 201380075600A CN 105208935 A CN105208935 A CN 105208935A
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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
- A61B5/150259—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
- A61B5/150351—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
- A61B5/150473—Double-ended needles, e.g. used with pre-evacuated sampling tubes
- A61B5/150488—Details of construction of shaft
-
- 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
- A61B5/150496—Details of construction of hub, i.e. element used to attach the double-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
- A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
- A61B5/150641—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
-
- 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
- A61B5/150374—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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
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- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Disclosed is a needle cylinder type vacuum blood sampler with a jacking needle tube, comprising a blood vessel-puncturing needle tube (11), a puncturing needle seat (12), a blood-sampling needle tube (21), a blood-sampling needle seat (22) and a cylinder-shaped needle cylinder (5). The core cavity of the puncturing needle seat (12) is in communication with that of the blood-sampling needle seat (22) and serves as a blood-sampling channel, and a vacuum blood-sampling tube (4) can be inserted into a cylinder-shaped empty cavity at the back of the needle cylinder (5). The main points of the composition of the blood sampler lie in that a grabber (6) is provided at the outer peripheral wall of the needle cylinder (5), the grabber (6) has at least two wings (61) respectively corresponding to an operating finger, and the distance from the wings (61) to the bottom of a vacuum blood-sampling tube (4) inserted into the needle cylinder (5) corresponds to that from the operating finger to the centre of a palm. Compared with the prior art, the vacuum blood sampler has a large operating force, can easily apply the force, is stable in operation, reasonable in structure and the manufacturability of the assembly is good.
Description
Technical field
The present invention relates to vacuum blood collection apparatus, particularly a kind of syringe-type vacuum blood collector of pushing tow heparin tube outside a kind of human body in clinical treatment.
Background technology
A kind of syringe-type vacuum blood collector of the prior art is as shown in Fig. 1, Fig. 2, including vascular puncture needle tubing 11, Paracentesis needle holder 12
, blood-collecting needle tube 21, blood sampling needle stand 22, hose connector 3, vacuum blood collection tube 4 and a kind of transparent tubular syringe 5.Paracentesis needle holder 12 is located at the front end of syringe 5, can be fixed on syringe 5
On；When for needle point protect it is safety-type when, the Paracentesis needle holder can be slided with respect to syringe 5.Blood sampling needle stand 22 is fixed on the interior forward end wall of syringe 5, is connected between two kinds of needle stands by hose connector 3, syringe 5
The cylindrical cavity rear end at rear portion is opened, and vacuum blood collection tube 4 can be inserted freely into cylindrical cavity.
In Clinical practice, needle tubing 11 is punctured first and is pierced into blood vessel, is seen by hose connector 3 after blood back, a hand clamps syringe 5
, another hand again by the front end of vacuum blood collection tube 4 insert syringe cylindrical cavity in, firmly insert inward, allow blood-collecting needle tube 21 pass through vacuum blood collection tube seal rubber plug 41
, reach blood sampling purpose.Above-mentioned blood-collecting needle tube penetration process need to overcome two resistances：One is the bounce that antidrip gum cover 23 is pressurized and produced, and the antidrip gum cover 23 is coated on blood-collecting needle tube 21
On needle point；Two be that needle tubing passes through vacuum blood collection tube seal rubber plug 41
Frictional resistance.For overcome two resistances and it is preceding push away the operating physical force of vacuum blood collection tube needed for it is inevitable larger, vacuum blood collection tube is so easily produced to rock and the unstable phenomenon of syringe clamping, needle point scuffing endangium can all be directly resulted in or wear out vascular risk by either rocking or clamp shakiness, both of which makes blood vessel be further compromised, and easily triggers inflammation.
It is not enough that the prior art also has one in Clinical practice, on packaging technology, the puncture needle component and one of needle assemblies of taking a blood sample of flexible pipe need to will be connected, first fit into tubular syringe inner chamber, and fix stably, another component is reassembled, because tubular syringe inner chamber is than narrow, packaging technology certainly will be brought bad and inefficiency problem.
Invention is constituted
It is an object of the invention to overcome weak point of the prior art, and provide a kind of convenient, operating process that exerts a force to be not likely to produce to rock pushing tow heparin tube that is unstable and being easy to operation
Syringe-type vacuum blood collector；It is a further object of the present invention to provide a kind of more reasonable structure and the syringe-type vacuum blood collector of the more preferable pushing tow heparin tube of packaging technology.
The purpose of the present invention is realized by following approach.
The syringe-type vacuum blood collector of pushing tow heparin tube,
Including vascular puncture needle tubing, Paracentesis needle holder, blood-collecting needle tube, blood sampling needle stand and a kind of tubular syringe, puncture needle tubing and connect blood-collecting needle tube with blood sampling needle stand via Paracentesis needle holder, vacuum blood collection tube can be plugged in the cylindrical cavity at syringe rear portion, and its composition is characterized by：It is provided with a kind of handgrip on syringe periphery wall, handgrip at least has two each spademans corresponding with operation finger, the distance of spademan to the bottom for the vacuum blood collection tube being plugged in syringe is corresponding with operating distance of the finger to the centre of the palm.
So, only need one hand that vacuum blood collection tube is inserted into syringe in operation, then palm withstands blood sampling bottom of the tube, and forefinger and middle finger clasp the handgrip that is assemblied on syringe or so spademan respectively, and forefinger and middle finger original position are motionless, slap bottom reach, heparin tube insertion blood-collecting needle tube is promoted, blood-collecting needle tube insert action is easily accomplished, because forefinger and middle finger original position are motionless, prevent front end puncture needle tubing to rock, it is to avoid puncture damage of the needle point of needle tubing to blood vessel.
The purpose of the present invention can also be realized by following approach.
Spademan has two, uniform along syringe outer peripheral face.Or
Handgrip is in a kind of ring surface of collar syringe periphery EDS maps.
This ring surface does not have the optional position on directionality, ring surface to can serve as spademan.
Back end of syringe has retaining step, and handgrip is a kind of ellipse slice, and its center drilling, aperture is outer through corresponding with syringe, is inserted in the ellipse slice of syringe from syringe front end through this perforate and retaining step is touched.
So, handgrip is constructed with syringe split, is inserted in again when using, and convenient manufacture also reduces packaging volume.
Stopping into face with vacuum blood collection tube in the cylindrical cavity at syringe rear portion, the vacuum blood collection tube of reach by blood-collecting needle tube after seal rubber plug is pierced through, thereon
Seal rubber plug protective jacket front end face stops with this to be touched into face.
Stop the advance for touching prevention vacuum blood collection tube into face and seal rubber plug protective jacket front end face through this.
Syringe inner chamber is provided with three reinforcements, and three reinforcements are evenly distributed and axially extended, and reinforcement rear end face stops into face as vacuum blood collection tube.
Paracentesis needle holder and blood sampling needle stand Construction integration and a kind of needle stand of composition, the needle stand and cursor slide, pushing hands composition sliding assembly, the sliding assembly with can relative syringe be slidably mounted on syringe, needle stand is located in syringe inner chamber, cursor slide connects needle stand and pushing hands through the chute in barrel sidewall is inside and outside, pushing hands is located at outside syringe, and chute is axially extending along syringe.
So, after puncturing and taking a blood sample and finish, it can be hidden into post-tensioning pushing hands in syringe inner chamber to needle tubing is punctured, prevent that puncturing needle tubing accidentally injures other people, triggers infection.
Blood back cavity is provided with needle stand, needle stand is made of clear material.
Puncture needle tubing and blood-collecting needle tube Construction integration and formed a kind of horizontal stroke-folding-
Horizontal shape, wherein two crosspieces are to puncture needle tubing and blood-collecting needle tube respectively, trisection is to puncture in the junction surface of needle tubing and blood-collecting needle tube, needle stand to be provided with blood back cavity, and blood back groove is provided with the needle tubing and is connected with blood back cavity, needle stand is made of clear material.
Chute has two, is oppositely arranged on the both sides of syringe, and cursor slide is made up of the support arm of two Relative distributions, and support arm one end and needle stand be affixed or Construction integration, and the other end is extended out to be connected or Construction integration through after corresponding chute with pushing hands.
So, two support arms or so set and pushing hands outside syringe, needle stand in syringe, three's connection or Construction integration, integral rigidity is good, and left and right support arm in turn ensure that the stability of blood collection assembly sliding.
Chute leading portion dash forward it is convex have a kind of elastic bump, this elastic bump and cursor slide elastic card are touched, and the cursor slide under operating physical force effect gets over this elastic bump and slid backward.
So, puncture before terminating, sliding assembly is positioned by this elastic bump, and only in the presence of post-tensioning operating physical force, cursor slide can just get over this elastic bump by force.
A kind of process Installation groove is axially extended to chute from back end of syringe to be led to, and blood sampling cursor slide is inserted from this process Installation groove and up into chute and thereby, blood collection assembly is axially planted and intussusception with syringe.
The setting of mounting process groove, is able to allow sliding assembly to assemble to finish in advance and assembled again with syringe, greatly improves packaging technology.
Groove width of the width be slightly narrower than blood sampling chute of cracking of process Installation groove.
So, by means of the opening and the elasticity of syringe plastic material of process Installation front of the slot, when mounted this mounting process groove is opened by this elastic deformation, filled in blood sampling cursor slide, and the groove width for chute of taking a blood sample and the arm for cursor slide of taking a blood sample are wide corresponding, so, process Installation groove can close the process Installation groove as the prominent card of elasticity of the blood sampling cursor slide of the smooth sliding in blood sampling chute even without in plug afterwards again.
It is of course also possible to specially set a kind of prominent card of elasticity at the junction surface of process Installation groove and chute, the elastic convex clip is by the cantilever that is overhang along chute bearing of trend and is arranged on the elastic bump of cantilever end and constitutes.
The sliding assembly slid backward in place is moved back by the prominent locking of this elasticity.
The valve for preventing reverse-flow that a kind of anti-Hemostatic Oral Liquid inversely overflows is provided with the blood channel of Paracentesis needle holder or needle stand of taking a blood sample.
So, it can prevent blood sampling from finishing, prick blood band release moment, vacuum blood collection tube is with respect to blood back flow caused by the moment malleation of human body blood sampling site.
Valve for preventing reverse-flow has multiple choices, and prior art is common, the following is a kind of optimum choice：
Valve for preventing reverse-flow is arranged on blood sampling needle stand, is a kind of diaphragm type one-way valve.
Valve for preventing reverse-flow is arranged on blood sampling needle stand, can prevent blood back flow in the very first time.And the not check construction interference with being set on Paracentesis needle holder.
Diaphragm type one-way valve is made up of film and fixed ear, diaphragm external diameter is more than the blood channel in blood sampling needle stand and its leading flank contacts laminating with the step surface in blood channel, fixed ear and blood sampling needle stand are affixed, fixation tongue thereon pushes down film side face, diaphragm resiles by natural resiliency when in negative pressure, swing backward concedes blood channel, pressure balance or malleation to the corresponding another side of film and step surface pastes and touches closing liquid passage.
So, during malleation, even check valve tapping side fluid pressure is once more than check valve feed liquor body side pressure, diaphragm is pressurized and is brought into close contact with needle stand inner chamber baseplane, and sealing liquid passage prevents liquid reverse flow.
Another optimum choice on valve for preventing reverse-flow is：
Valve for preventing reverse-flow is by 2-5
Piece is along the circumferential direction uniform and the tongue piece composition that axially extends, and a plurality of tongue pieces form tip-angled shape or cone tip shape after closing up, and tip-angled shape or cone angle shape are relative with receding into the needle tip in syringe inner chamber backwards.
Two panels tongue piece forms tip-angled shape after closing up, and 3-5
Piece tongue piece forms cone tip shape after closing up, either tip-angled shape or cone tip shape all have the effect for closing up closure, not only needle point is difficult to from closing up the point of closure, inversely pass at angle, and this closure and reverse pressure effect of closing up makes it close up the point of closure, angle construction all the more, it is had counterflow-preventing effect concurrently.
In summary, the present invention has the following advantages that compared with prior art：Operating physical force is big and force is convenient, it is firm to operate.Rational in infrastructure, packaging technology is good.
Brief description of the drawings
Fig. 1 is structural representation of a kind of syringe-type vacuum blood collector under the non-puncture state of blood-collecting needle tube in the prior art；
Fig. 2 is structural representation of a kind of syringe-type vacuum blood collector under blood-collecting needle tube puncture state in the prior art；
Fig. 3 is the structural representation stereogram of the syringe-type vacuum blood collector of pushing tow heparin tube described in preferred embodiment；
Fig. 4 is the syringe-type vacuum blood collector structural representation sectional view of pushing tow heparin tube described in preferred embodiment；
Fig. 5 be pushing tow heparin tube described in preferred embodiment syringe-type vacuum blood collector blood sampling finish after schematic diagram；
Fig. 6 is the sliding assembly structural representation stereogram in the syringe-type vacuum blood collector of pushing tow heparin tube described in preferred embodiment；
Fig. 7 is the structural representation stereogram of the syringe in the syringe-type vacuum blood collector of pushing tow heparin tube described in preferred embodiment；
Fig. 8 is the gripping structure schematic isometric in the syringe-type vacuum blood collector of pushing tow heparin tube described in preferred embodiment；
Fig. 9 is scheme of installation of the valve for preventing reverse-flow on blood sampling needle stand；
Figure 10 is the valve for preventing reverse-flow structural representation in Fig. 9.
Label declaration：
11 puncture the blood sampling antidrip hose connector of gum cover 3 of needle stand 23 of blood-collecting needle tube 22 of 14 pushing hands of needle tubing 12 Paracentesis needle holder, 13 cursor slide 21
The blood back groove of 54 retaining step of the elastic convex clip of 4 vacuum blood collection tube, 41 seal rubber plug, 5 syringe, 51 process Installation groove, 52 chute 53,55 71 blood back cavity of elastic bump 6 handgrip, 61 spademan, 7 needle stand 72
8 valve for preventing reverse-flow
More description in detail is carried out to the present invention below in conjunction with the accompanying drawings.
Embodiment
Most preferred embodiment：
Reference picture 3, Fig. 4 and Fig. 5, the syringe-type vacuum blood collector of pushing tow heparin tube, including vascular puncture needle tubing 11, Paracentesis needle holder 12, blood-collecting needle tube
21st, blood sampling needle stand 22 and a kind of tubular syringe 5, puncture needle tubing 11 and connect blood-collecting needle tube 21 with blood sampling needle stand 22 via Paracentesis needle holder 12, vacuum blood collection tube 4 can be plugged on syringe 5
In the cylindrical cavity at rear portion, a kind of handgrip 6 is provided with the periphery wall of syringe 5, handgrip 6 at least has two each spademans 61 corresponding with operation finger, spademan 61 to the vacuum blood collection tube 4 being plugged in syringe
Bottom distance it is corresponding with distance of the operation finger to the centre of the palm.
Reference picture 8, the rear end of syringe 5 has retaining step 54, handgrip 6
For a kind of ellipse slice, its center drilling, aperture outside syringe with, through corresponding, being inserted in the ellipse slice of syringe 5 from the front end of syringe 5 through this perforate and retaining step 54 being touched.
Reference picture 6, Paracentesis needle holder 12 and the blood sampling Construction integration of needle stand 22 and a kind of needle stand 7 of composition, the needle stand 7 and cursor slide 13
, the composition sliding assembly of pushing hands 14, the sliding assembly with can relative syringe 5 be slidably mounted on syringe 5, needle stand 7 is located in the inner chamber of syringe 5, and cursor slide 13 is through the chute on the side wall of syringe 5
52 inside and outside connection needle stands 7 and pushing hands 14, pushing hands 14 are located at outside syringe 5.Cursor slide 13
Be made up of the support arm of two Relative distributions, support arm one end and needle stand are affixed, the other end extend out to through after corresponding chute 52 with the Construction integration of pushing hands 14.Puncture needle tubing 11 and blood-collecting needle tube 21
Construction integration simultaneously forms a kind of shape of horizontal stroke-folding-horizontal stroke, wherein two crosspieces are to puncture needle tubing 11 and blood-collecting needle tube 21 respectively, trisection is to puncture in the junction surface of needle tubing and blood-collecting needle tube, needle stand 7 to be provided with blood back cavity
71, blood back groove 72 is provided with the needle tubing and is connected with blood back cavity 71, and needle stand 7 is made of clear material.
Reference picture 7, chute 52 is axially extending along syringe 5, and chute 52 has two, is oppositely arranged on syringe 5
Both sides.A kind of process Installation groove 51 is axially extended to chute 52 from the rear end of syringe 5 to be led to, and cursor slide 13 is inserted from this process Installation groove 51 and up to entering chute 52
And thereby, blood collection assembly is axially planted and intussusception with syringe 5.The width that cracks of process Installation groove 51 is be slightly narrower than chute 52
Groove width.So, by means of the opening and the elasticity of syringe plastic material of process Installation front of the slot, when mounted this mounting process groove is opened by this elastic deformation, filled in blood sampling cursor slide, and the groove width for chute of taking a blood sample and the arm for cursor slide of taking a blood sample are wide corresponding, so, process Installation groove can close the process Installation groove as the prominent card of elasticity of the blood sampling cursor slide of the smooth sliding in blood sampling chute even without in plug afterwards again.In process Installation groove
51 and the junction surface of chute 52 a kind of prominent card 53 of elasticity is specially set, the elastic convex clip 53 is by the cantilever that is overhang along the bearing of trend of chute 52 and is arranged on the elastic bump of cantilever end and constitutes.Chute 52
Leading portion dash forward it is convex have a kind of elastic bump 55, this elastic bump 55 and the elastic card of cursor slide 52 are touched, and the cursor slide 52 under operating physical force effect gets over this elastic bump 55 and slid backward.
Reference picture 9, Figure 10, the valve for preventing reverse-flow 8 that a kind of anti-Hemostatic Oral Liquid inversely overflows is provided with the blood channel of blood sampling needle stand.The valve for preventing reverse-flow 8
It is made up of, valve for preventing reverse-flow 8 is fixed in blood sampling needle stand inner chamber the symmetrically arranged tongue piece 81 of two panels and retainer ring 82 by retainer ring 82, is in a kind of pointed shape after the two symmetrical closures of tongue pieces 81,
It is this to close up the wedge angle construction that closure and reverse pressure effect make it close up closure all the more, it is had counterflow-preventing effect.
The not described part of the present embodiment is same as the prior art.
Claims (18)
- The syringe-type vacuum blood collector of pushing tow heparin tube, including vascular puncture needle tubing, Paracentesis needle holder, blood-collecting needle tube, blood sampling needle stand and a kind of tubular syringe, puncture needle tubing and connect blood-collecting needle tube with blood sampling needle stand via Paracentesis needle holder, vacuum blood collection tube can be plugged in the cylindrical cavity at syringe rear portion, it is characterized in that, a kind of handgrip is provided with syringe periphery wall, handgrip at least have two each with the corresponding spademan of operation finger, the distance of spademan to the bottom for the vacuum blood collection tube being plugged in syringe is corresponding with operating distance of the finger to the centre of the palm.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that spademan has two, it is uniform along syringe outer peripheral face.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that handgrip is in a kind of ring surface of collar syringe periphery EDS maps.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that back end of syringe has retaining step, handgrip is a kind of ellipse slice, its center drilling, aperture is outer through corresponding with syringe, is inserted in the ellipse slice of syringe from syringe front end through this perforate and retaining step is touched.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterized in that, stopping into face with vacuum blood collection tube in the cylindrical cavity at syringe rear portion, the vacuum blood collection tube of reach by blood-collecting needle tube after seal rubber plug is pierced through, and seal rubber plug protective jacket front end face thereon stops with this to be touched into face.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that syringe inner chamber is provided with three reinforcements, three reinforcements are evenly distributed and axially extended, and reinforcement rear end face stops into face as vacuum blood collection tube.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterized in that, Paracentesis needle holder and blood sampling needle stand Construction integration and a kind of needle stand of composition, the needle stand and cursor slide, pushing hands composition sliding assembly, the sliding assembly with can relative syringe be slidably mounted on syringe, needle stand is located in syringe inner chamber, and cursor slide is through the inside and outside connection needle stand of chute in barrel sidewall and pushing hands, pushing hands is located at outside syringe, and chute is axially extending along syringe.
- According to claim 7 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that blood back cavity is provided with needle stand, needle stand is made of clear material.
- The syringe-type vacuum blood collector of pushing tow heparin tube according to claim 1, it is characterised in that puncture needle tubing and blood-collecting needle tube Construction integration and formed a kind of horizontal stroke-folding- Horizontal shape, wherein two crosspieces are to puncture needle tubing and blood-collecting needle tube respectively, trisection is to puncture in the junction surface of needle tubing and blood-collecting needle tube, needle stand to be provided with blood back cavity, and blood back groove is provided with the needle tubing and is connected with blood back cavity, needle stand is made of clear material.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterized in that, chute has two, it is oppositely arranged on the both sides of syringe, cursor slide is made up of the support arm of two Relative distributions, support arm one end and needle stand be affixed or Construction integration, and the other end is extended out to be connected or Construction integration through after corresponding chute with pushing hands.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that chute leading portion dash forward it is convex have a kind of elastic bump, this elastic bump and cursor slide elastic card are touched, and the cursor slide under operating physical force effect gets over this elastic bump and slid backward.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterized in that, a kind of process Installation groove is axially extended to chute from back end of syringe to be led to, and blood sampling cursor slide is inserted from this process Installation groove and up into chute and thereby, blood collection assembly is axially planted and intussusception with syringe.
- According to claim 12 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that groove width of the width be slightly narrower than blood sampling chute of cracking of process Installation groove.
- According to claim 12 or 13 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that set a kind of prominent card of elasticity at the junction surface of process Installation groove and chute, the elastic convex clip is by the cantilever that is overhang along chute bearing of trend and is arranged on the elastic bump of cantilever end and constitutes.
- According to claim 1 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that be provided with the valve for preventing reverse-flow that a kind of anti-Hemostatic Oral Liquid inversely overflows on the blood channel of Paracentesis needle holder or needle stand of taking a blood sample.
- According to claim 15 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterised in that valve for preventing reverse-flow is arranged on blood sampling needle stand, is a kind of diaphragm type one-way valve.
- According to claim 16 The syringe-type vacuum blood collector of described pushing tow heparin tube, it is characterized in that, diaphragm type one-way valve is made up of film and fixed ear, diaphragm external diameter is more than the blood channel in blood sampling needle stand and its leading flank contacts laminating with the step surface in blood channel, fixed ear and blood sampling needle stand are affixed, fixation tongue thereon pushes down film side face, diaphragm resiles by natural resiliency when in negative pressure, swing backward concedes blood channel, pressure balance or malleation to the corresponding another side of film and step surface pastes and touches closing liquid passage.
- The syringe-type vacuum blood collector of pushing tow heparin tube according to claim 15, it is characterised in that valve for preventing reverse-flow is by 2-5 Piece is along the circumferential direction uniform and the tongue piece composition that axially extends, and a plurality of tongue pieces form tip-angled shape or cone tip shape after closing up, and tip-angled shape or cone angle shape are relative with receding into the needle tip in syringe inner chamber backwards.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/074263 WO2014169436A1 (en) | 2013-04-16 | 2013-04-16 | Needle cylinder type vacuum blood sampler with jacking needle tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105208935A true CN105208935A (en) | 2015-12-30 |
| CN105208935B CN105208935B (en) | 2017-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380075600.8A Active CN105208935B (en) | 2013-04-16 | 2013-04-16 | The syringe-type vacuum blood collector of pushing tow heparin tube |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105208935B (en) |
| WO (1) | WO2014169436A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324291A (en) * | 2018-03-24 | 2018-07-27 | 曹春荣 | Blood specimen collection valve for preventing reverse-flow device and blood taking needle |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106725528B (en) * | 2016-11-28 | 2019-09-24 | 山东卫康医学检验有限公司 | A kind of medical sampler |
| CN108338793B (en) * | 2018-04-16 | 2023-09-19 | 浙江百获健康科技有限公司 | Intravenous blood taking needle |
| CN110585522A (en) * | 2019-10-22 | 2019-12-20 | 程基才 | Multifunctional indwelling needle with blood sample collection function |
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| WO2001047582A1 (en) * | 1999-12-23 | 2001-07-05 | Mohammad Owais | Retractable safety needles for medical applications |
| US20030163096A1 (en) * | 2002-02-28 | 2003-08-28 | Becton, Dickinson And Company | Shieldable fluid collection set |
| CN201073308Y (en) * | 2007-07-12 | 2008-06-18 | 王新花 | Blood sampling tube for clinical test |
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| CN108324291B (en) * | 2018-03-24 | 2023-12-22 | 曹春荣 | Blood sample collection anti-backflow valve device and blood taking needle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014169436A1 (en) | 2014-10-23 |
| CN105208935B (en) | 2017-09-01 |
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Effective date of registration: 20230909 Address after: S5 # Factory Building, Medical Equipment Industrial Park, Industrial New Area, No. 66 Tingzhou Avenue South Road, Cewu Town, Changting County, Longyan City, Fujian Province, 366309 Patentee after: Conlite (Changting) Medical Equipment Co.,Ltd. Address before: No. 27, Lane 45, Kaohsiung Road, Huangpu District, Shanghai, 200011 Patentee before: Zhang Jianming |