CN203263404U - Syringe type vacuum blood collector with sliding blood collection needle seat - Google Patents
Syringe type vacuum blood collector with sliding blood collection needle seat Download PDFInfo
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- CN203263404U CN203263404U CN 201320189588 CN201320189588U CN203263404U CN 203263404 U CN203263404 U CN 203263404U CN 201320189588 CN201320189588 CN 201320189588 CN 201320189588 U CN201320189588 U CN 201320189588U CN 203263404 U CN203263404 U CN 203263404U
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- needle stand
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Abstract
The utility model relates to an extracorporeal vacuum blood collection apparatus in clinical care, in particular to a syringe type vacuum blood collector with a sliding blood collection needle seat. The syringe type vacuum blood collector comprises a blood vessel puncture needle tubing, a puncture needle seat, a blood collection needle tubing, the blood collection needle seat, a flexible connection tube and a cylindrical syringe. The puncture needle seat is communicated with the blood collection needle seat through the flexible connection tube. A vacuum blood collection tube can be arranged in a cylindrical cavity in the rear portion of the syringe in an inserted mode. The syringe type vacuum blood collector is structurally characterized in that a blood collection assembly is formed by the blood collection needle tubing, the blood collection needle seat, a blood collection slide arm and a blood collection pushing handle; the blood collection assembly is installed on the syringe and can slide relative to the syringe; the blood collection needle tubing and the blood collection needle seat are located in an inner cavity of the syringe; the blood collection slide arm penetrates through a blood collection sliding chute arranged on the side wall of the syringe to be internally connected with the blood collection needle seat and externally connected with the blood collection pushing handle; the blood collection pushing handle is located outside the syringe; the blood collection sliding chute extends in the axial direction of the syringe. Compared with the prior art, the syringe type vacuum blood collector with the sliding blood collection needle seat has the advantages that operating force is large, force is convenient to apply, operation is firm and steady, the structure is reasonable, assembling manufacturability is good, and blood countercurrent can be prevented.
Description
Technical field
This utility model relates to the outer vacuum blood collection apparatus of a kind of human body in clinical treatment, particularly a kind of syringe-type vacuum blood collector of slippage blood sampling needle stand.
Background technology
A kind of syringe-type vacuum blood collector of the prior art comprises vascular puncture needle tubing 11, Paracentesis needle holder 12, blood-collecting needle tube 21, blood sampling needle stand 22, hose connector 3, vacuum test tube 4 and a kind of transparent tubular syringe 5 as shown in Figure 1 and Figure 2.Paracentesis needle holder 12 is positioned at syringe 5 front ends, can be fixed on syringe 5; When being when having the safety of needle point protection, this Paracentesis needle holder syringe 5 relatively slides.Blood sampling needle stand 22 is fixed on syringe 5 interior forward end walls, is communicated with by hose connector 3 between two kinds of needle stands, and the cylindrical cavity rear end at syringe 5 rear portions is open, and vacuum test tube 4 can freely insert in cylindrical cavity.
In clinical use, at first the needle tubing 11 that punctures thrusts blood vessel, after seeing blood back by hose connector 3, a hands clamping syringe 5, the another hands inserts vacuum test tube 4 front ends in the syringe cylindrical cavity again, firmly insert inward, allow blood-collecting needle tube 21 pass vacuum test tube seal rubber plug 41, reach the blood sampling purpose.Above-mentioned blood-collecting needle tube penetration process need overcome two resistances: the one, and antidrip gum cover 23 pressurizeds and the bounce that produces, this antidrip gum cover 23 is coated on blood-collecting needle tube 21 needle points; The 2nd, needle tubing passes the frictional resistance of vacuum test tube seal rubber plug 41.Required inevitable larger for overcoming the front operating physical force that pushes away vacuum test tube of these two resistances, so easy generation vacuum test tube rocks and the phenomenon of syringe clamping shakiness, rock or the clamping shakiness all can directly cause needle point scratch tunica intima or wear out blood vessel danger, both of these case all makes blood vessel further suffer damage, and easily causes inflammation.
Also there is a deficiency in the prior art in clinical use, on packaging technology, need to connect one of the puncture needle assembly of flexible pipe and blood taking needle assembly, first fit in tubular syringe inner chamber, and fixing firm, assemble again another assembly, because tubular syringe inner chamber is narrower and small, certainly will bring the bad and inefficiency problem of packaging technology.
The negative pressure amount of vacuum test tube arranges according to blood sampling volume.In clinical use, because need are first pricked upper Esmarch's bandage, and the Esmarch's bandage limbs lower end intravascular pressure rising of tightening, after blood taking needle is got involved ulnar vein, blood flows in the negative pressure state vacuum test tube, preset negative pressure and exhaust the blood sampling end, at this moment, intravascular pressure=vacuum test tube is intrinsic pressure.Blood sampling ends, and takes Esmarch's bandage, and intravascular pressure reduces rapidly, comes back to normal pressure, and this moment, hemostix did not also withdraw from blood vessel, and blood taking tube is intrinsic pressure〉intravascular pressure, might cause the blood of having taked to return in blood vessel and risk of infection occurs.
The utility model content
The purpose of this utility model is to overcome weak point of the prior art, and provide that a kind of application of force is convenient, operating process is difficult for producing and rocks shakiness and the syringe-type vacuum blood collector of the slippage blood sampling needle stand of convenient operation; Further purpose of the present utility model is to provide the syringe-type vacuum blood collector of a kind of more reasonable structure and the better slippage blood sampling of packaging technology needle stand; A step purpose more of the present utility model is to provide a kind of syringe-type vacuum blood collector that prevents the slippage blood sampling needle stand of blood back flow.
The purpose of this utility model realizes by following approach.
the syringe-type vacuum blood collector of slippage blood sampling needle stand, comprise the vascular puncture needle tubing, Paracentesis needle holder, blood-collecting needle tube, the blood sampling needle stand, hose connector and a kind of tubular syringe, hose connector is communicated with Paracentesis needle holder and blood sampling needle stand, vacuum test tube can be plugged in the cylindrical cavity at syringe rear portion, it forms main points and is: blood-collecting needle tube, blood sampling needle stand and blood sampling cursor slide, the blood sampling pushing hands forms blood collection assembly, this blood collection assembly is arranged on syringe with syringe sliding type relatively, blood-collecting needle tube, the blood taking needle seat is arranged in the syringe inner chamber, the blood sampling cursor slide passes the inside and outside connection blood sampling needle stand of blood sampling chute and the blood sampling pushing hands on barrel sidewall, the blood sampling pushing hands is positioned at outside syringe, the blood sampling chute extends axially along syringe.
During clinical use, promote backward the pushing hands of taking a blood sample in the vacuum test tube after puncture finishes in the front thimble tube inner chamber, like this two-way function operating physical force not only operating physical force large and also the application of force convenient, operation firmly.
The purpose of this utility model can also realize by following approach.
Also comprise a kind of auxiliary pushing hands, this auxiliary pushing hands with the restriction vacuum test tube backward the mode of one-movement-freedom-degree be connected with vacuum test tube, this auxiliary pushing hands is positioned at the rear of the pushing hands of taking a blood sample.
Like this, grip respectively blood sampling pushing hands and auxiliary pushing hands with the finger of one hand and impose and draw close operation and can easily take a blood sample and penetrate operation.
The pushing hands of should auxiliary pushing hands relatively taking a blood sample can ipsilateral distributes before and after the opposite, also can distribute before and after upper and lower sides.
Should auxiliary pushing hands can be by an annulus and on it fin that extends outward consist of, internal radius is inserted in its body and continues forward until touch with the seal rubber plug protective jacket by touching with the seal rubber plug protective jacket from the vacuum test tube tail end through this annulus between blood taking tube body external diameter and sealing blood sampling tube plug protective jacket external diameter.
Like this, get the former vacuum test tube that pushes away by the also front push wing sheet of touching of annulus and seal rubber plug protective jacket breech face.
Having stopping of vacuum test tube in the cylindrical cavity at syringe rear portion stops into touching of face and seal rubber plug protective jacket front end face into face and through this and stops advancing of vacuum test tube.
Stop get involved into face after, in the clinical manipulation process, vacuum test tube no longer before pushes away, the needle stand of just taking a blood sample is unidirectional to be retreated, auxiliary pushing hands this moment can be used as matching of blood sampling pushing hands be convenient to the to take a blood sample application of force of pushing hands.
The syringe inner chamber is provided with three reinforcements, and these three reinforcements are along circumferentially uniform and extension vertically, and the reinforcement rear end face stops into face as vacuum test tube.
Tubular syringe front opening, a kind of process Installation groove A or extend to vertically with the chute of taking a blood sample from the syringe front end or from back end of syringe leads to, blood sampling cursor slide from then on process Installation groove A inserts also until enter the blood sampling chute also by this, blood collection assembly and syringe are axially planted and intussusception, the junction of blood sampling needle stand and hose connector or be positioned at the leading section of blood sampling needle stand or be positioned at the sidepiece of the needle stand of taking a blood sample, the syringe front opening is covered with protecgulum.
The syringe front opening is implemented being connected of hose connector and the needle stand of taking a blood sample under the visual situation of eyesight and under looser installation environment.And the setting of mounting process groove A, allowed in advance assembling of blood collection assembly complete again with the syringe assembling, packaging technology is greatly improved.
The width that cracks of process Installation groove A slightly is narrower than the groove width of blood sampling chute.
Like this, by means of the opening of process Installation groove A front end and the elasticity of syringe plastic material, open this mounting process groove A by this strain when mounted, filled in the blood sampling cursor slide, and the groove width of blood sampling chute is wide corresponding with the arm of blood sampling cursor slide, like this, process Installation groove A can be used as again and even need not at the prominent card of elasticity of the blood sampling cursor slide of the smooth and easy slippage of blood sampling in chute to close this process Installation groove A at plug afterwards.
The blood sampling chute has two, be oppositely arranged on the both sides of syringe, the blood sampling cursor slide is comprised of the arc arm of two support arms and arc cross-over connection two support arms, support arm one end is affixed or Construction integration with the blood sampling needle stand, and the other end is connected or Construction integration with the arc arm after extending out to and passing the blood sampling chute corresponding with it.
Like this, two about support arms arrange and the arc arm syringe outside, the blood sampling needle stand in syringe, three's connection or Construction integration become closed-loop configuration, integral rigidity is good, and the left and right support arm has guaranteed the stability of blood collection assembly slippage.
The inboard applying corresponding to the syringe outer peripheral face of arc arm.
Like this, assemble complete after, blood collection assembly relatively the smooth and easy slippage of syringe not only with the syringe one integrated mass and but also make blood collection assembly with some slippage dampings, operating handle is good.
One of them in two support arms extends radially outward, and another support arm stretches out along the flat-cut direction after first extending obliquely upward again.
The support arm that extends radially outward is simple in structure.Can abdicate a larger space and first extend to stretch out along the flat-cut direction more obliquely upward below this support arm, this space can be used for holding the Paracentesis needle holder assembly.
Described syringe-type vacuum blood collector also includes a kind of puncture cursor slide, puncture pushing hands, puncture needle tubing check structure and puncture chute, puncture needle tubing, Paracentesis needle holder, puncture cursor slide and puncture pushing hands form piercing assembly, be used for preventing being retracted into the check structure installation of the reverse effusion syringe of puncture needle tubing of syringe inner chamber in the syringe inner chamber in Paracentesis needle holder the place ahead, puncture cursor slide one end is connected or Construction integration with Paracentesis needle holder, the other end is connected with syringe puncture pushing hands outward after passing the puncture chute, and the puncture chute is positioned at the syringe side lower part and extends axially along syringe.
Like this, the puncture needle tubing of puncture after complete is retracted in the syringe inner chamber and is limited wherein will not overflow and caused infection in order to avoid stab other people.
Tubular syringe front opening, a kind of process Installation groove B or extend to vertically with the chute that punctures from the syringe front end or from back end of syringe leads to, puncture cursor slide from then on process Installation groove B inserts also until enter the puncture chute also by this, be connected complete piercing assembly and syringe with hose connector and axially plant and intussusception, the syringe front opening is covered with protecgulum.
Like this, whole piercing assembly band is able to from the front end of syringe or insert the rear end and plant with syringe and be connected be connected complete hose connector with it, and packaging technology is good.
The width that cracks of process Installation groove B slightly is narrower than the groove width of puncture chute.
Like this, by means of the opening of process Installation groove B front end and the elasticity of syringe plastic material, open this mounting process groove B by this strain when mounted, filled in the puncture cursor slide, and the groove width of puncture chute is wide corresponding with the arm of puncture cursor slide, like this, process Installation groove B can be used as again and even need not at the prominent card of elasticity of the puncture cursor slide of the smooth and easy slippage of puncture in chute to close this process Installation groove B at plug afterwards.
Be provided with the reverse valve for preventing reverse-flow that overflows of a kind of anti-Hemostatic Oral Liquid on the blood channel of Paracentesis needle holder or blood sampling needle stand.
Like this, can prevent from taking a blood sample complete, prick the blood band and unclamp moment, the moment malleation and the blood back flow that causes of the relative human body blood sampling site of vacuum test tube.
Valve for preventing reverse-flow has multiple choices, and prior art is common, is below a kind of optimized choice:
Valve for preventing reverse-flow is arranged on the blood sampling needle stand, is a kind of diaphragm type one-way valve.
Valve for preventing reverse-flow is arranged on the blood sampling needle stand, can stop blood back flow in the very first time.If the check structure of selecting symmetrical tongue piece and dividing wall to form, the tongue piece combination of closing up rear formation tip-angled shape or cone tip shape also can have preliminary counterflow-preventing effect concurrently.
Diaphragm type one-way valve by thin film and fixedly ear consist of, blood channel in needle stand and its leading flank contact applying with a step surface in blood channel to the diaphragm external diameter greater than blood sampling, fixedly ear is affixed with the blood sampling needle stand, fixedly tongue on it is pushed down thin film one side, the another side that thin film is corresponding swings when negative pressure backward abdicates blood channel, and when pressure balance or malleation, diaphragm is by self elastic return original shape and the tactile closing liquid passage of step surface subsides.
Like this, during malleation, even check valve tapping side fluid pressure is in case greater than check valve feed liquor side pressure, and the diaphragm pressurized fits tightly with needle stand inner chamber baseplane, sealing liquid passage, the reverse flow of prevention liquid.
In sum, this utility model has following advantage compared to existing technology: operating physical force is large and the application of force convenient, operation is firm.Rational in infrastructure, packaging technology is good.Can prevent blood back flow.
Description of drawings
Fig. 1 is that in prior art, a kind of syringe-type vacuum blood collector does not pierce through structural representation under state at blood-collecting needle tube;
Fig. 2 is that in prior art, a kind of syringe-type vacuum blood collector has pierced through structural representation under state at blood-collecting needle tube;
Fig. 3 is the structural representation of the syringe-type vacuum blood collector of the described slippage blood sampling of this utility model most preferred embodiment needle stand;
Fig. 4 is the structural representation axonometric chart of the Paracentesis needle holder in Fig. 3 and the needle stand of taking a blood sample;
Fig. 5 is the syringe cylinder structure schematic isometric in Fig. 3;
Fig. 6 is the structural representation axonometric chart of the syringe other direction in Fig. 3;
Fig. 7 is the structural representation axonometric chart of the blood sampling cursor slide in Fig. 3 and the pushing hands of taking a blood sample;
Fig. 8 is the auxiliary pushing hand structure schematic isometric in Fig. 3;
Fig. 9 be the described slippage of this utility model most preferred embodiment blood sampling needle stand the syringe-type vacuum blood collector blood-collecting needle tube pierce through under state structural representation;
Figure 10 is the check structural texture schematic diagram in Fig. 3;
Figure 11 is the scheme of installation of valve for preventing reverse-flow on the blood sampling needle stand in Fig. 3;
Figure 12 be in Fig. 3 with the fixing ear blood taking needle holder structure schematic diagram of diaphragm type one-way valve.
Label declaration:
11 puncture needle tubing 12 Paracentesis needle holder 13 puncture cursor slide 14 puncture pushing hands 21 blood-collecting needle tube 22 antidrip gum cover 241 support arm 242 arc arm 25 blood sampling pushing hands 3 hose connector 4 vacuum test tube 41 seal rubber plug 42 protective jacket 5 syringe 51 reinforcements of blood sampling needle stand 23
52 blood sampling chute 53 process Installation groove A 54 puncture chute 55 process Installation groove B 56 elasticity convex clip 6 check structure 61 tongue pieces
62 retainer ring 7 valve for preventing reverse-flow 71 thin film 72 are ear fixedly
8 auxiliary pushing hands 81 fin 82 annulus 9 protecgulums
Below in conjunction with accompanying drawing, this utility model is carried out more detailed description.
The specific embodiment
Most preferred embodiment:
with reference to Fig. 3 and Fig. 9, the syringe-type vacuum blood collector of slippage blood sampling needle stand, comprise vascular puncture needle tubing 11, Paracentesis needle holder 12, blood-collecting needle tube 21, blood sampling needle stand 22, hose connector 3 and a kind of tubular syringe 5, hose connector 3 is communicated with Paracentesis needle holder 12 and blood sampling needle stand 22, vacuum test tube 4 can be plugged in the cylindrical cavity at syringe 5 rear portions, blood-collecting needle tube 21, blood sampling needle stand 22 and blood sampling cursor slide, blood sampling pushing hands 25 forms blood collection assembly, this blood collection assembly syringe 5 sliding types relatively is arranged on syringe 5, blood-collecting needle tube 21, blood sampling needle stand 22 is arranged in syringe 5 inner chambers, the blood sampling cursor slide passes the inside and outside connection blood sampling of blood sampling chute 52 needle stand 22 and the blood sampling pushing hands 25 on syringe 5 sidewalls, blood sampling pushing hands 25 is positioned at outside syringe 5, blood sampling chute 52 extends axially along syringe 5.Puncture needle tubing 11, Paracentesis needle holder 12, puncture cursor slide 13 and puncture pushing hands 14 form piercing assembly, the check structure 6 that is used for preventing being retracted into the reverse effusion syringe of puncture needle tubing of syringe inner chamber is arranged on the syringe inner chamber leading section in Paracentesis needle holder 12 the place aheads, puncture cursor slide 13 1 ends are connected with Paracentesis needle holder 12 and are integral structure, the other end passes the puncture pushing hands 14 that puncture chute 54 is rear and syringe 5 is outer and is connected, and puncture chute 54 is positioned at syringe 5 side lower parts and extends axially along syringe 5.Also comprise a kind of auxiliary pushing hands 8, this auxiliary pushing hands 8 with restriction vacuum test tube 4 backward the mode of one-movement-freedom-degree be connected with vacuum test tube 4, this auxiliary pushing hands 8 is positioned at the rear of the pushing hands 25 of taking a blood sample.Should assist the relative blood sampling pushing hands 25 of pushing hands 8 to distribute front and back, ipsilateral opposite, also can upper and lower sides front and back distribution.Be that front and back, ipsilateral opposite distribute shown in figure.
With reference to Fig. 8, should auxiliary pushing hands 8 by an annulus 82 and on it fin 81 that extends outward consist of, annulus 82 internal diameters are inserted in its body and continue forward until touch with seal rubber plug protective jacket 42 by touching with seal rubber plug protective jacket 42 from vacuum test tube 4 tail ends through this annulus between vacuum test tube 4 body external diameters and sealing blood sampling tube plug protective jacket 42 external diameters.Like this, must push away vacuum test tube in the past by the also front push wing sheet 81 of touching of annulus and seal rubber plug protective jacket 42 breech faces.
With reference to Fig. 6, have stopping of vacuum test tube 4 in the cylindrical cavity at syringe 5 rear portions and stop into touching of face and seal rubber plug protective jacket 42 front end faces into face and through this and stop advancing of vacuum test tube 4.Syringe 5 inner chambers are provided with three reinforcements 51, and these three reinforcements 51 are along circumferentially uniform and extension vertically, and the reinforcement rear end face stops into face as vacuum test tube 4.Stop get involved into face after, in the clinical manipulation process, vacuum test tube no longer before pushes away, the needle stand of just taking a blood sample is unidirectional to be retreated, auxiliary pushing hands this moment can be used as matching of blood sampling pushing hands be convenient to the to take a blood sample application of force of pushing hands.
With reference to Fig. 4 and Fig. 5, tubular syringe 5 front openings, a kind of process Installation groove A53 also extends to vertically with the chute 52 of taking a blood sample from syringe 5 front openings and leads to, blood sampling cursor slide from then on process Installation groove A53 inserts also until enter blood sampling chute 52 also by this, blood collection assembly and syringe 5 are axially planted and intussusception, the junction of blood sampling needle stand 22 and hose connector 3 is positioned at the leading section of blood sampling needle stand 22, and syringe 5 front openings are covered with protecgulum 9.The width that cracks of process Installation groove A53 slightly is narrower than the groove width of blood sampling chute 52.Blood sampling chute 52 has two, is oppositely arranged on the both sides of syringe 5.
With reference to Fig. 7, the blood sampling cursor slide is comprised of the arc arm 242 of two support arms 241 and arc cross-over connection two support arms 241, support arm 241 1 ends and blood sampling needle stand 22 Construction integrations, the other end extend out to and pass the blood sampling chute corresponding with it 52 afterwards and arc arm 242 Construction integrations.Arc arm 242 inboards and the syringe 5 corresponding applyings of outer peripheral face.One of them in two support arms 241 extends radially outward, and another support arm 241 stretches out along the flat-cut direction after first extending obliquely upward again.Can abdicate a larger space and first extend to stretch out along the flat-cut direction more obliquely upward below this support arm 241, this space can be used for holding the Paracentesis needle holder assembly.
With reference to Fig. 4 and Fig. 5, a kind of process Installation groove B55 extends to vertically with the chute 54 that punctures from syringe 5 open rearward end and leads to, puncture cursor slide 13 from then on process Installation groove B55 inserts and until enter puncture chute 54 and by this, is connected axially plant intussusception also of complete piercing assembly and syringe 5 with hose connector 3.Like this, the same complete hose connector 3 that has been connected with it of whole piercing assembly band is able to insert from the rear end of syringe and plant with syringe be connected.The width that cracks of process Installation groove B55 slightly is narrower than the groove width of puncture chute 54.Be provided with a kind of elasticity convex clip 56 at puncture chute 54 tail ends, the salient point on this elasticity convex clip 56 can with puncture cursor slide 13 on corresponding pit (not shown in FIG.) buckle, further restriction retreats the movement of the Paracentesis needle holder 12 after putting in place.Upwards backing down this elasticity convex clip 56 can allow puncture cursor slide 13 enter puncture chute 54 from process Installation groove B55.
With reference to Figure 11, Figure 12, be provided with the reverse valve for preventing reverse-flow that overflows 7 of a kind of anti-Hemostatic Oral Liquid on the blood channel of blood sampling needle stand.This valve for preventing reverse-flow 7 is a kind of diaphragm type one-way valves.Diaphragm type one-way valve by thin film 71 and fixedly ear 72 consist of, thin film 71 external diameters contact applying greater than the blood channel in blood sampling needle stand 22 and its leading flank with a step surface in blood channel, fixedly ear 72 and blood sampling needle stand Construction integration, fixedly tongue on it is pushed down thin film one side, the another side that thin film is corresponding swings when negative pressure backward abdicates blood channel, and when pressure balance or malleation, diaphragm is by self elastic return original shape and the tactile closing liquid passage of step surface subsides.
With reference to Figure 10, a kind of check structure 6 is installed in Paracentesis needle holder 12, this check structure 6 is comprised of two symmetrically arranged tongue pieces 61 and retainer ring 62, the ring wall of this retainer ring 62 is namely a kind of dividing wall, tongue piece root and this ring wall Construction integration, cavity beyond tongue piece is by this ring wall isolation sealing, by retainer ring 62, check structure is fixed on the leading section of syringe 5 inner chambers in Paracentesis needle holder 12 the place aheads, is a kind of pointed shape after two symmetrical tongue piece 61 closures and can stops with Paracentesis needle holder 12 slippages and retreat and the reverse effusion of puncture needle tubing 11 in retraction syringe 5 inner chambers.
During this hemostix assembling, the puncture needle tubing assembly of affixed good connecting hose is in advance inserted syringe operating sleeve inner chamber, on puncture needle tubing assembly, puncture cursor slide plug is crossed process Installation groove B, and push puncture runner rear end elasticity convex clip open, allow the puncture cursor slide enter the puncture chute, and the needle tubing that punctures simultaneously penetrates syringe front lower end pin hole, and puncture needle tubing assembly continues to slide into forward foremost; Again with two support arms of blood-collecting needle tube assembly respectively correspondence filled in process Installation groove A, then move out of the connecting hose other end by the big hole of syringe front end face opening part, affixed with the blood-collecting needle tube assembly.From whole assembly process, this Novel hemostix simple and convenient assembly is a lot, and efficient significantly improves.
During clinical use, the annulus that first vacuum test tube is inserted the auxiliary pushing hands of blood taking tube protective jacket rear end face and annulus end face on it offset, treat that hemostix punctures in blood vessel, after seeing blood back from transparent hose, a have gentle hands gently buttresses syringe, the another hands is inserted into the blood taking tube front end face with blood taking tube from back end of syringe to be encountered in operating sleeve after the reinforcement rear end face, mobile mother refers to forefinger to pushing hands and the auxiliary pushing hands fin of taking a blood sample, thumb and forefinger pinch respectively blood sampling pushing hands and fin, use less some power, to both draw close in opposite directions, until till can't drawing close again.Because the blood taking tube front end face props up rib, and blood taking tube protective jacket rear end is subject to auxiliary pushing hands and withstands, and blood taking tube can't be advanced and retreat, and the blood-collecting needle tube assembly can freely move in the syringe inner chamber by travelling arm slip it on, thereby, during as above-mentioned move toward one another, can only move, so backward, blood-collecting needle tube just can penetrate antidrip gum cover and sealing blood sampling tube plug, needle point penetrates and begins blood sampling in blood taking tube, and blood sampling ends, and can easily withdraw from blood taking tube backward.
It is same as the prior art that the present embodiment is not stated part.
Claims (17)
1. the syringe-type vacuum blood collector of slippage blood sampling needle stand, comprise the vascular puncture needle tubing, Paracentesis needle holder, blood-collecting needle tube, the blood sampling needle stand, hose connector and a kind of tubular syringe, hose connector is communicated with Paracentesis needle holder and blood sampling needle stand, vacuum test tube can be plugged in the cylindrical cavity at syringe rear portion, it is characterized in that, blood-collecting needle tube, blood sampling needle stand and blood sampling cursor slide, the blood sampling pushing hands forms blood collection assembly, this blood collection assembly is arranged on syringe with syringe sliding type relatively, blood-collecting needle tube, the blood taking needle seat is arranged in the syringe inner chamber, the blood sampling cursor slide passes the inside and outside connection blood sampling needle stand of blood sampling chute and the blood sampling pushing hands on barrel sidewall, the blood sampling pushing hands is positioned at outside syringe, the blood sampling chute extends axially along syringe.
2. the syringe-type vacuum blood collector of slippage according to claim 1 blood sampling needle stand, it is characterized in that, also comprise a kind of auxiliary pushing hands, this auxiliary pushing hands with the restriction vacuum test tube backward the mode of one-movement-freedom-degree be connected with vacuum test tube, this auxiliary pushing hands is positioned at the rear of the pushing hands of taking a blood sample.
3. the syringe-type vacuum blood collector of slippage according to claim 2 blood sampling needle stand, is characterized in that, this auxiliary pushing hands pushing hands of relatively taking a blood sample can ipsilateral distributes before and after the opposite, also can distribute before and after upper and lower sides.
4. the syringe-type vacuum blood collector of according to claim 2 or 3 described slippages blood sampling needle stands, it is characterized in that, should auxiliary pushing hands can be by an annulus and on it fin that extends outward consist of, internal radius is inserted in its body and continues forward until touch with the seal rubber plug protective jacket by touching with the seal rubber plug protective jacket from the vacuum test tube tail end through this annulus between blood taking tube body external diameter and sealing blood sampling tube plug protective jacket external diameter.
5. the syringe-type vacuum blood collector of slippage according to claim 1 blood sampling needle stand, it is characterized in that having stopping of vacuum test tube in the cylindrical cavity at syringe rear portion and stop into touching of face and seal rubber plug protective jacket front end face into face and through this and stop advancing of vacuum test tube.
6. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 5, is characterized in that, the syringe inner chamber is provided with three reinforcements, and these three reinforcements are along circumferentially uniform and extension vertically, and the reinforcement rear end face stops into face as vacuum test tube.
7. the syringe-type vacuum blood collector of slippage according to claim 1 blood sampling needle stand, it is characterized in that, tubular syringe front opening, a kind of process Installation groove A or extend to vertically with the chute of taking a blood sample from the syringe front end or from back end of syringe leads to, blood sampling cursor slide from then on process Installation groove A inserts also until enter the blood sampling chute also by this, blood collection assembly and syringe are axially planted and intussusception, the junction of blood sampling needle stand and hose connector or be positioned at the leading section of blood sampling needle stand or be positioned at the sidepiece of the needle stand of taking a blood sample, the syringe front opening is covered with protecgulum.
8. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 7, is characterized in that, the width that cracks of process Installation groove A slightly is narrower than the groove width of blood sampling chute.
9. the syringe-type vacuum blood collector of slippage according to claim 1 blood sampling needle stand, it is characterized in that, the blood sampling chute has two, be oppositely arranged on the both sides of syringe, the blood sampling cursor slide is comprised of the arc arm of two support arms and arc cross-over connection two support arms, support arm one end is affixed or Construction integration with the blood sampling needle stand, and the other end is connected or Construction integration with the arc arm after extending out to and passing the blood sampling chute corresponding with it.
10. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 9, is characterized in that, the inboard applying corresponding to the syringe outer peripheral face of arc arm.
11. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 9 is characterized in that one of them in two support arms extends radially outward, another support arm stretches out along the flat-cut direction after first extending obliquely upward again.
12. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 1, it is characterized in that, described syringe-type vacuum blood collector also includes a kind of puncture cursor slide, the puncture pushing hands, puncture needle tubing check structure and puncture chute, the puncture needle tubing, Paracentesis needle holder, puncture cursor slide and puncture pushing hands form piercing assembly, be used for preventing being retracted into the check structure installation of the reverse effusion syringe of puncture needle tubing of syringe inner chamber in the syringe inner chamber in Paracentesis needle holder the place ahead, puncture cursor slide one end is connected or Construction integration with Paracentesis needle holder, the other end is connected with syringe puncture pushing hands outward after passing the puncture chute, the puncture chute is positioned at the syringe side lower part and extends axially along syringe.
13. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 12, it is characterized in that, tubular syringe front opening, a kind of process Installation groove B or extend to vertically with the chute that punctures from the syringe front end or from back end of syringe leads to, puncture cursor slide from then on process Installation groove B inserts also until enter the puncture chute also by this, be connected complete piercing assembly and syringe with hose connector and axially plant and intussusception, the syringe front opening is covered with protecgulum.
14. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 13 is characterized in that the width that cracks of process Installation groove B slightly is narrower than the groove width of puncture chute.
15. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 1 is characterized in that, is provided with the reverse valve for preventing reverse-flow that overflows of a kind of anti-Hemostatic Oral Liquid on the blood channel of Paracentesis needle holder or blood sampling needle stand.
16. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 15 is characterized in that valve for preventing reverse-flow is arranged on the blood sampling needle stand, is a kind of diaphragm type one-way valve.
17. the syringe-type vacuum blood collector of slippage blood sampling needle stand according to claim 16, it is characterized in that, diaphragm type one-way valve by thin film and fixedly ear consist of, blood channel in needle stand and its leading flank contact applying with a step surface in blood channel to the diaphragm external diameter greater than blood sampling, fixedly ear is affixed with the blood sampling needle stand, fixedly tongue on it is pushed down thin film one side, the another side that thin film is corresponding swings when negative pressure backward abdicates blood channel, and when pressure balance or malleation, diaphragm is by self elastic return original shape and the tactile closing liquid passage of step surface subsides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189588 CN203263404U (en) | 2013-04-16 | 2013-04-16 | Syringe type vacuum blood collector with sliding blood collection needle seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189588 CN203263404U (en) | 2013-04-16 | 2013-04-16 | Syringe type vacuum blood collector with sliding blood collection needle seat |
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| Publication Number | Publication Date |
|---|---|
| CN203263404U true CN203263404U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320189588 Expired - Fee Related CN203263404U (en) | 2013-04-16 | 2013-04-16 | Syringe type vacuum blood collector with sliding blood collection needle seat |
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| CN (1) | CN203263404U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169430A1 (en) * | 2013-04-16 | 2014-10-23 | Zhang Jianming | Backflow-prevention needle cylinder type vacuum blood sampler |
| CN105142520A (en) * | 2013-04-16 | 2015-12-09 | 张建铭 | Needle cylinder type vacuum blood sampler with slidable puncturing needle seat |
| CN106691466A (en) * | 2017-02-13 | 2017-05-24 | 梁斌 | Medical guided blood collection device |
| CN109567828A (en) * | 2019-01-30 | 2019-04-05 | 天津哈娜好医材有限公司 | Needleless blood taking needle and its application method |
| CN110236567A (en) * | 2019-06-18 | 2019-09-17 | 杭州医学院 | A kind of blood-taking device |
-
2013
- 2013-04-16 CN CN 201320189588 patent/CN203263404U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169430A1 (en) * | 2013-04-16 | 2014-10-23 | Zhang Jianming | Backflow-prevention needle cylinder type vacuum blood sampler |
| CN105142520A (en) * | 2013-04-16 | 2015-12-09 | 张建铭 | Needle cylinder type vacuum blood sampler with slidable puncturing needle seat |
| CN105142520B (en) * | 2013-04-16 | 2018-03-16 | 张建铭 | The syringe-type vacuum blood collector of sliding blood sampling needle stand |
| CN106691466A (en) * | 2017-02-13 | 2017-05-24 | 梁斌 | Medical guided blood collection device |
| CN109567828A (en) * | 2019-01-30 | 2019-04-05 | 天津哈娜好医材有限公司 | Needleless blood taking needle and its application method |
| CN109567828B (en) * | 2019-01-30 | 2023-09-19 | 天津哈娜好医材有限公司 | Needleless blood collection needle and use method thereof |
| CN110236567A (en) * | 2019-06-18 | 2019-09-17 | 杭州医学院 | A kind of blood-taking device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 |