CN103222870A - Blood sampling auxiliary device - Google Patents
Blood sampling auxiliary device Download PDFInfo
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- CN103222870A CN103222870A CN2013101823213A CN201310182321A CN103222870A CN 103222870 A CN103222870 A CN 103222870A CN 2013101823213 A CN2013101823213 A CN 2013101823213A CN 201310182321 A CN201310182321 A CN 201310182321A CN 103222870 A CN103222870 A CN 103222870A
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Abstract
The invention discloses a blood sampling auxiliary device. The blood sampling auxiliary device comprises a housing, a blood sampling needle placing mechanism, a blood sampling tube placing mechanism, a blocking-separating mechanism, a positioning mechanism and a trigger mechanism, wherein the blood sampling needle placing mechanism, the blood sampling tube placing mechanism, the blocking-separating mechanism, the positioning mechanism and the trigger mechanism are arranged in the housing; the blocking-separating mechanism is provided with a blood sampling blocking mechanism and a separating mechanism; the blood sampling blocking mechanism is used for enabling a tube piston puncture needle body of the blood sampling needle to penetrate; the separating mechanism is used for separating the blood sampling needle placing mechanism from the blood sampling tube placing mechanism under the action of the trigger mechanism after the blood sampling; and the positioning mechanism is used for fixing the blood sampling needle placing mechanism and/or the blood sampling tube placing mechanism with the housing in real time. The blood sampling auxiliary device disclosed by the invention can be used for smoothly separating the tube piston puncture needle body from the tube piston after the blood sampling is completed, so that the problems that the specimen collection is failed and pollution is caused to medical personnel, patients and operation environment due to blood splashing as a bleeding stop protective sleeve is rebounded quickly or slowly are solved. Besides, the needed blood sample amount can be collected by one-step blood sampling; and the blood sampling process is safe, efficient and accurate.
Description
Technical field
The present invention relates to a kind of medical blood sampling apparatus technical field, relate in particular to a kind of safe blood sampling auxiliary device.
Background technology
At present, hospital's blood sampling system mainly comprises blood taking tube A and blood taking needle B, and wherein, blood taking tube A comprises body A1 and plug A2, also has safety helmet A3 when needing, and sees Fig. 1 for details; Referring to Fig. 2, blood taking needle B mainly comprises pipe close puncture needle B1, conduit B2 and venipuncture needle B3.Wherein, referring to Fig. 3, pipe close puncture needle B1 comprises haemostatic sheath B11, pipe close puncture needle body B12.In hospital, when adopting existing this blood sampling system that the patient is carried out blood collection, the medical worker directly enters the pipe close lancet puncture with hands in the plug of blood taking tube and takes a blood sample; The reuse hands directly will be extracted the plug A2 of pipe close puncture needle from body A1 after blood sampling finished.There are some potential safety hazards in this blood sampling system of prior art, and is as described below:
At first, when blood sampling is pulled out pin after finishing,, make pipe close puncture needle body drive plug easily and break away from body when the frictional force between pipe close puncture needle body and the plug during greater than the frictional force between plug and the body, cause body to separate with plug, this consequence that can cause is: 1, cause the blood collection failure; 2, make the intravital blood of blood taking tube pipe trickle out, pollute medical worker, patient and operating environment.
Secondly, when pulling out pin after blood sampling finishes, when the frictional force between pipe close puncture needle body and the plug during less than the haemostatic sheath resilience force, occurring plug and pipe close puncture needle body easily breaks away from advance, the too fast problem of haemostatic sheath resilience appears, this consequence that can cause is: 1, need secondary even repeatedly puncture, increased medical worker's workload; 2, the pollution of blood preparation itself and the probability that medical worker, surrounding are polluted have been increased.
This shows; how prior art is improved; a kind of blood sampling auxiliary device is provided; can once successfully finish blood sampling and pipe close puncture needle body is separated smoothly with pipe close; safety with protection medical worker, patient; and make blood preparation safely, prevent to pollute, sampling quantity is accurate, this is this area technical issues that need to address.
Summary of the invention
The objective of the invention is to, a kind of blood sampling auxiliary device is provided, can make blood collection procedure safety, successfully carry out.
For solving above technical problem, technical scheme of the present invention is:
A kind of blood sampling auxiliary device, comprise housing and be arranged on the intravital blood taking needle placing mechanism of shell, blood taking tube placing mechanism, obstruct separating mechanism, detent mechanism, trigger mechanism, described obstruct separating mechanism only be provided with blood sampling that the pipe close puncture needle body for blood taking needle passes intercept mechanism and blood sampling back under the trigger mechanism effect with blood taking needle placing mechanism and the isolating separating mechanism of blood taking tube placing mechanism, described detent mechanism is used for blood taking needle placing mechanism and/or blood taking tube placing mechanism and housing are fixed in real time.
In the technical program, can be set to: the blood taking tube placing mechanism flexibly connects with housing and the blood taking needle placing mechanism is fixedlyed connected with housing, the blood taking tube placing mechanism is moved, and the blood taking needle placing mechanism is motionless, the blood taking tube placing mechanism moves to the pipe close puncture needle body that makes blood taking needle when passing pipe close and entering position in the blood taking tube body, make blood taking tube placing mechanism and housing positioning and fixing by detent mechanism, after blood sampling is finished, act on the location of detent mechanism releasing to the blood taking tube placing mechanism, under the trigger action of trigger mechanism, the obstruct separating mechanism makes the blood taking tube placing mechanism move away from the blood taking needle placing mechanism and makes the two separation.Equally, also can be set to; Blood taking needle placing mechanism and housing flexibly connect, and blood taking tube placing mechanism and housing are fixed, and the blood taking needle placing mechanism moves before blood sampling and blood sampling after moves away from blood taking tube placing mechanism by detent mechanism with the housing location near the blood taking tube placing mechanism, when the blood sampling the two is separated; Also can be set to: blood taking needle placing mechanism and blood taking tube placing mechanism all flexibly connect in housing, the two was all by detent mechanism and housing positioning and fixing when the two moved simultaneously close, blood sampling in opposite directions before blood sampling, and after blood sampling by acting on detent mechanism, remove the fixing of the two and housing, the two all oppositely moves, separates, is returned to original position.
Preferably, described housing comprises base and the over cap that cooperates with base, and described over cap is connected opening or closing with described base.
Preferably, described blood taking tube placing mechanism is connected by guiding mechanism with described housing, described blood taking tube placing mechanism in described housing along the guide groove of described guiding mechanism move and near or away from described blood taking needle placing mechanism, described blood taking needle placing mechanism is fixedlyed connected with described housing, and described detent mechanism is used for when blood sampling described blood taking tube placing mechanism and described housing being fixed.
Preferably, described guiding mechanism also comprises the guide rail that cooperates with guide groove, and described guide rail is arranged on the described housing, and described guide groove is arranged on the described blood taking tube placing mechanism; Perhaps described guide rail is arranged on the blood taking tube placing mechanism, and described guide groove is arranged on the described housing.Preferably; described housing comprises base and the over cap that cooperates with base; described guide groove is arranged on the described base and described guide rail is arranged on the described blood taking tube placing mechanism or described guide rail is arranged on the described blood taking tube placing mechanism, and described guide groove is arranged on the described base.
Preferably, described detent mechanism is a positioning knob, and described blood taking tube placing mechanism is provided with screwed hole, and described positioning knob is screwed in the described screwed hole, and described positioning knob is to the inner precession of described screwed hole the time and described housing butt.
Preferably, described blood taking tube placing mechanism comprises that the blood taking tube that is formed by blood taking tube upper bracket and blood taking tube lower carriage lays the chamber, described blood taking tube is laid in the chamber and is provided with opening near an end that intercepts separating mechanism, described obstruct separating mechanism comprises near the push pedal of described opening setting and the baffle plate that is positioned at described push pedal opposite side, the top of described push pedal only is provided with the blood sampling hole that the pipe close puncture needle body for blood taking needle passes through, and the top of described push pedal intercepts mechanism as described blood sampling; The bottom of described push pedal is provided with guide rod and buckle near the one side of blood taking needle placing mechanism, is with elastic component on the described guide rod; Described baffle plate is provided with and described draw-in groove that is clasped and the gathering sill that only passes through for described guide rod, described buckle passes described draw-in groove and contiguous with described trigger mechanism or contact, and the bottom of described push pedal and described guide rod, described elastic component, described buckle and described baffle plate are as described separating mechanism.Preferably, described detent mechanism is a positioning knob, and a side of described blood taking tube lower carriage is provided with screwed hole, and described positioning knob is screwed in the described screwed hole, and described positioning knob is to the inner precession of described screwed hole the time and the housing butt.
Preferably, described blood taking tube placing mechanism is provided with curved button of clamping and deck, the curved button bit of described clamping on the described blood taking tube upper bracket and described deck is positioned on the described blood taking tube lower carriage or the curved button bit of described clamping on the described blood taking tube lower carriage and described deck be positioned on the described blood taking tube upper bracket, described deck longitudinally is provided with a plurality of buckling grooves, and the curved button of described clamping can stretch into the blood taking tube that formation varies in size in the different buckling grooves and lay the chamber.Preferably, one end of described blood taking tube upper bracket is connected with pin-and-hole by pin with an end of described blood taking tube lower carriage, the other end of described blood taking tube upper bracket is provided with that deck or clamping are curved buckle, and the other end setting of the described blood taking tube lower carriage clamping corresponding with described deck bent to buckle or bend with described clamping and buckled corresponding deck.
Preferably, described housing is provided with locating groove and stopper slot, and the end of described baffle plate is stretched in the described locating groove and is positioned, and the end of described push pedal is stretched in the described stopper slot limited.Preferably, described housing comprises over cap and base, and described locating groove and described stopper slot are arranged on the described base.
Preferably, described trigger mechanism is a button, and described button is provided with and extend out to outer press-side of described housing and the trigger end that is connected with described press-side, and the free end of described trigger end is close to described buckle or contacts.
Another embodiment as the blood taking tube placing mechanism, described blood taking tube placing mechanism comprises that blood taking tube lays the chamber, described blood taking tube is laid in the chamber end plate top near described obstruct separating mechanism and only is provided with the blood sampling hole that the pipe close puncture needle body for blood taking needle passes through, the bottom of described end plate is provided with guide rod and buckle near the one side of blood taking needle placing mechanism, be with elastic component on the described guide rod, the top of described end plate intercepts mechanism as described blood sampling, described obstruct separating mechanism also comprises the baffle plate that is arranged between described push pedal and the described blood taking needle placing mechanism, described baffle plate is provided with and described draw-in groove that is clasped and the gathering sill that only passes through for guide rod, described buckle passes described draw-in groove and contiguous with described trigger mechanism or contact the bottom of described end plate, described push pedal, described guide rod, described elastic component, described buckle is as described separating mechanism.
As blood taking tube placing mechanism and housing by guiding mechanism is connected, blood taking needle placing mechanism and housing are fixed this technical scheme alternate embodiments, described blood taking tube placing mechanism is fixedlyed connected with housing, described blood taking tube placing mechanism is fixedlyed connected with described housing, described blood taking needle placing mechanism is connected by described guiding mechanism with described housing, and in described housing along the guide groove of described guiding mechanism move and near or away from described blood taking tube placing mechanism, described detent mechanism is used for when blood sampling described blood taking needle placing mechanism and described housing being fixed; The described actuation mechanism of leading also comprises the guide rail that cooperates with described guide groove, and described guide rail is arranged on the housing and described guide groove is arranged on the blood taking needle placing mechanism or described guide rail is arranged on the blood taking needle placing mechanism and described guide groove is arranged on the described housing.
Preferably, described blood taking tube placing mechanism is provided with the graduated tile that is used for the labelling blood sampling volume, and described housing and graduated tile corresponding position are provided with visual window.
Preferably, described base comprises the left base and the right base of adjacency.
Compared with prior art, blood sampling auxiliary device of the present invention is owing to comprise housing and be arranged on the intravital blood taking needle placing mechanism of shell, the blood taking tube placing mechanism, intercept separating mechanism, detent mechanism, trigger mechanism, the obstruct separating mechanism that is provided with only be provided with blood sampling that the pipe close puncture needle body for blood taking needle passes intercept mechanism and blood sampling back under the trigger mechanism effect with blood taking needle placing mechanism and the isolating separating mechanism of blood taking tube placing mechanism, the plug and the blood taking needle of blood taking tube can be separated when making blood sampling like this, the blood taking tube placing mechanism is separated with the blood taking needle placing mechanism, avoid occurring pipe close puncture needle body and plug is taken away and made plug and the isolating phenomenon of blood taking tube body; Because detent mechanism and trigger mechanism are set; detent mechanism can be fixed blood taking needle placing mechanism and/or blood taking tube placing mechanism with housing after when blood sampling and blood sampling in real time; thereby after blood sampling is finished; can reach protection by artificial control detent mechanism, trigger mechanism by housing; avoid occurring because the haemostatic sheath resilience is too fast or cause blood to splash excessively slowly and make collection of specimens failure and to the problem that medical worker, patient and operating environment pollute, make blood collection procedure to carry out smoothly safely.In addition, because trigger mechanism is set, detent mechanism is controlled blood sampling, has reduced the chance that medical worker in the blood collection procedure directly contacts blood taking tube and blood taking needle, and is more convenient to operate and safe and reliable.
Description of drawings
Fig. 1 is the decomposition texture sketch map of blood taking tube in the prior art;
Fig. 2 is the structural representation of blood taking needle in the prior art;
Fig. 3 is the decomposition texture sketch map of pipe close puncture needle among Fig. 2;
Fig. 4 is the take a blood sample overall structure sketch map of auxiliary device embodiment of the present invention;
Fig. 5 opens structural representation behind the over cap for blood sampling auxiliary device among Fig. 4;
Fig. 6 is the enlarged drawing at I place among Fig. 5;
Fig. 7 is the B-B cutaway view of blood sampling auxiliary device among Fig. 5;
Fig. 8 is the enlarged drawing at II place among Fig. 7;
Fig. 9 is the decomposition texture sketch map of blood sampling auxiliary device among Fig. 4;
Figure 10 is the A-A cutaway view (before the blood sampling) of blood sampling auxiliary device among Fig. 4;
Figure 11 is the A-A cutaway view (in the blood sampling) of blood sampling auxiliary device among Fig. 4;
Figure 12 is the A-A cutaway view (blood sampling back moment) of blood sampling auxiliary device among Fig. 4;
Among the figure, the arrow direction is an application of force direction.
The specific embodiment
For making technical scheme of the present invention clearer, the present invention is described in detail by specific embodiment below in conjunction with accompanying drawing.
At in the blood collection procedure in the prior art and blood collection finish the back owing to directly contact the pollution that blood taking tube body and blood taking needle pipe close puncture needle cause and the problem of blood specimen collection failure with hands, the invention provides a kind of blood sampling auxiliary device, avoid because the haemostatic sheath resilience is too fast, pipe close separates collection of specimens failure and the pollution on the environment problem that causes.
Referring to Fig. 4～Figure 12, the blood sampling auxiliary device of present embodiment comprises housing, is arranged on blood taking tube placing mechanism and the blood taking needle placing mechanism in the housing and intercepts separating mechanism, detent mechanism, trigger mechanism.Wherein, but housing comprises base and the over cap 4 of the folding that cooperates with base; Base comprises left base 2, right base 3, and left base 2 and right base 3 are antitropies, and is fastening by the screw assembling.Over cap 4 cooperates with left base 2 and right base 3 with cooperating of pin by pin-and-hole.Certainly, in other embodiments, also can adopt other mode that over cap is cooperated with left base, right base, as long as make over cap and left base, the right base can be closed and open.
The blood taking tube placing mechanism comprises blood taking tube upper bracket 7 and blood taking tube lower carriage 5.Blood taking tube lower carriage 5 comprises the bottom, is arranged on the end plate of rear end, bottom, and this end plate can block the bottom of blood taking tube; The upper surface of bottom is provided with the arc elongated slot, is convenient to cooperate with the outer surface of blood taking tube.Blood taking tube upper bracket 7 is an arcual plate body, and the lower surface of this plate body is provided with the arc elongated slot, is convenient to cooperate with the outer surface of blood taking tube.Blood taking tube upper bracket 7 and blood taking tube lower carriage 5 closed backs form the cavity of front openings, be used to hold, lay blood taking tube, and the plug of blood taking tube or safety helmet are exposed in the housing inner chamber.Blood taking tube lower carriage 5 one sides are provided with pin-and-hole 51, one side of blood taking tube upper bracket 7 is provided with pin 71, one side of blood taking tube upper bracket 7 is by pin-and-hole 51 rotating are connected of pin 71 with the blood taking tube lower carriage, the opposite side of blood taking tube lower carriage 5 is provided with deck 52, deck 52 is provided with a plurality of buckling groove 52a from top to bottom, the opposite side of blood taking tube upper bracket 7 is provided with that clamping is curved buckles 72, the curved button 72 of clamping can extend among the buckling groove 52a of deck 52, and blood taking tube upper bracket 7 is connected with this side of blood taking tube lower carriage 5, the curved button of clamping is connected with the different cards access slot, make and to regulate blood taking tube upper bracket 7 and the blood taking tube lower carriage 5 closed sizes of the inner spaces of formation afterwards according to the actual size of blood taking tube, can be applicable to the blood taking tube of different size.The side that blood taking tube lower carriage 5 is provided with pin-and-hole also is provided with graduated tile 53, is used for reading blood sampling volume.Graduated tile 53 exposes outside housing, perhaps is coated in the housing, and the over cap of housing is provided with transparency window.The side that blood taking tube lower carriage 5 is provided with deck also is provided with screwed hole 54, twist in the screwed hole 54 and be connected to a location knob 6, as the detent mechanism of present embodiment,, the lower end of positioning knob 6 is contacted with base and make blood taking tube lower carriage 5 fixing somewhere by downward screwed in place knob 6.
Blood taking tube lower carriage 5 both sides also are respectively equipped with trapezoidal rails 55, the trapezoidal rails 55 of both sides cooperates with dovetail groove 21,31 on left base 2, the right base 3 respectively, makes blood taking tube lower carriage 5 and the blood taking tube upper bracket 7 that cooperates with it and the blood taking tube that is placed in inner space that the two closed back forms to move forward and backward by fixed stability-of-path ground.
The blood taking needle placing mechanism comprises a screwed hole, and the part of this screwed hole is positioned on the left base 2, is a screw thread half hole 22, and a part is positioned on the right base 3, and the threaded engagement of screwed hole and blood taking needle outside can be fastening with blood taking needle and left base 2 and right base 3.
Intercept separating mechanism and be used to separate blood taking tube and blood taking needle, the pipe close puncture needle body of blood taking needle is passed thrust in the blood taking tube, make blood sampling finish back blood taking tube and blood taking needle disengaging simultaneously and the blood taking tube placing mechanism is retreated to original position.This obstruct separating mechanism comprises push pedal 8 and baffle plate 10.Baffle plate 10 is between push pedal 8 and blood taking needle placing mechanism.The top of push pedal 8 only is provided with the blood sampling hole 81 that the pipe close puncture needle body for blood taking needle passes, and the top of baffle plate intercepts mechanism as blood sampling; The bottom of push pedal 8 is provided with wedge shape buckle 82 and guide rod 83 near the one side of blood taking needle placing mechanism, is arranged with spring 9 on the guide rod 83.The both sides of push pedal 8 also are respectively equipped with trapezoidal rails 84, are used for cooperating with the dovetail groove of left base 2 and right base 3.Baffle plate 10 two ends extend into respectively in locating groove 23 on the left base 2 and the locating groove (not shown) on the right base and are positioned.Baffle plate 10 is provided with draw-in groove 10a that cooperates with wedge shape buckle 82 and the gathering sill 10b that only passes for guide rod 83.Wherein, left base 2 is provided with stopper slot (not marking among the figure), right base is provided with stopper slot 32, breaks away from the wedge shape buckle 82 that stops push pedal 8 behind the draw-in groove 10a of baffle plates 10 because inertia continues to move backward.
Trigger mechanism is the button 1 that is provided with near baffle plate, and button 1 comprises push-button socket 11, button pressing plate 12, button spring 13, button push pedal 14.Push-button socket 11 is the cavity body structure of a lower ending opening, its top be provided with for button pressing plate 12 by and the through hole 11a that exposes, the lower end is provided with buckle 11b, is used for cooperating with draw-in groove 24, draw-in groove (not shown) on the right base 3 on the left base 2 fixing.Button pressing plate 12 is provided with the cavity of lower ending opening.Also be provided with button push pedal gathering sill 33 on the right base 3.Button push pedal 14 comprises transverse slat and the column that is 90 degree settings, and column vertically is provided with, and button spring 13 is enclosed within on the column, and column extend in the cavity of button pressing plate 12.The side butt of the free end of transverse slat and baffle plate 10.When downward pressing button pressing plate 12, the transverse slat of button push pedal 14 moves down, and contact wedge shape buckle 82, makes wedge shape buckle 82 break away from clamping with baffle plate 10 by the draw-in groove 10a on the baffle plate 10.
Referring to Figure 10, Figure 11, Figure 12, the work process of the blood sampling auxiliary device in the present embodiment is as follows:
Mode by screw threads for fastening is torqued-up to blood taking needle B on left base 2 and right base 3 screwed holes; open over cap 4; blood taking tube A is put on the blood taking tube lower carriage 5; size dimension according to blood taking tube; buckle 72 and the some suitable buckling groove 52a clamping of the deck of blood taking tube lower carriage 5 with the clamping of blood taking tube upper bracket 7 is curved, make that blood taking tube A is fastened in.The rearward end that promotes blood taking tube lower carriage 5 makes blood taking tube A withstand push pedal 8, continue to promote forward, wedge shape buckle 82 until push pedal 8 lower ends snaps in the draw-in groove 10a of baffle plate 10, the spring 9 that meanwhile is enclosed within on the push pedal guide rod 83 is compressed and produces elastic force, and the pipe close of blood taking needle puncture needle body has thrust the plug of blood taking tube, blood sampling beginning; At this moment, screw positioning knob 6, make the bottom and the base butt of positioning knob 6, make blood taking tube lower carriage, blood taking tube upper bracket, blood taking tube be positioned and can not move, thereby having prevented that blood sampling that the haemostatic sheath on the blood taking needle causes owing to elastic force is excessive from not finishing just make blood taking tube break away from the risk that blood taking needle brings in advance.Cover over cap 4, can read the requirement whether blood flow volume in the blood taking tube reaches the amount of required collection by observing number of division on blood taking tube lower carriage 5 graduated tiles.After blood sampling finishes, unclamp positioning knob 6, and press the button pressing plate 12, button pressing plate 12 promotes button push pedal 14, button push pedal 14 acts on the wedge shape buckle 82 of push pedal 8, make it be in the center of the draw-in groove 10a of baffle plate 10, then moment breaks away from baffle plate 10, meanwhile, push pedal 8 is moved to the direction away from baffle plate 10 under the effect of push pedal spring 9 resilience forces, blood taking tube lower carriage 5, blood taking tube upper bracket 7 also moves to the direction away from blood taking needle under the effect of push pedal 8 together with blood taking tube A, make blood taking tube A break away from blood taking needle B, and because effect of inertia, blood taking tube lower carriage 5, blood taking tube upper bracket 7 just stops until the least significant end place that moves to left base 2 and right base 3 together with blood taking tube A, and this process has prevented the pipe close segregation phenomenon that causes greater than the frictional force between rubber plug for vacutainer and the blood taking tube body owing to the frictional force between blood taking needle pipe close puncture needle body and the rubber plug for vacutainer.Then open over cap 4, unclamp curved button of clamping of blood taking tube upper bracket 7 and make and dig on the side direction of blood taking tube upper bracket 7, blood taking tube A exposes, and the blood taking tube that blood has been adopted in taking-up takes off blood taking needle, and so far blood collection procedure finishes.
Blood sampling auxiliary device in the present embodiment, elastic force promotion blood taking tube by the push pedal spring separates with blood taking needle, in blood taking tube and blood taking needle separation process, push pedal acts on rubber plug for vacutainer or safety helmet surface always, play the isolated effect of rubber plug for vacutainer, safety helmet and blood taking needle, so the isolating phenomenon of pipe close can not occur; In addition owing to be provided with positioning knob; just can make the blood taking tube location without the staff effect in the time of making blood sampling; and when blood sampling block blood taking tube by over cap, so can not occur causing the collection of specimens failure and medical worker, patient and operating environment being polluted because the haemostatic sheath resilience is too fast or cause blood to splash excessively slowly.
In the present embodiment, the structure that is provided with is fixed blood taking needle in blood collection procedure, and the blood taking tube placing mechanism is moved, in other embodiments, also can be set to the blood taking tube placing mechanism is fixed on a place, and the structure that the blood taking needle placing mechanism is moved perhaps is set to the structure that blood taking tube placing mechanism and blood taking needle placing mechanism can both move, and this also can realize purpose of the present invention.
In other embodiments, the spring 9 usefulness resilient sleeve of push pedal 8 can be replaced.
In other embodiments, also blood taking tube upper bracket and blood taking tube lower carriage and push pedal 8 can be set to integrative-structure, as be provided with around one, all closed up and down hollow bracket, the inner blood taking tube of placing, the hollow bracket upper plate can be opened, be equivalent to the blood taking tube upper bracket in the present embodiment, the front end-plate of hollow bracket is equivalent to the push pedal 8 in the present embodiment, the top of this front end-plate is provided with the blood sampling hole, guide rod and buckle in the arranged outside present embodiment of bottom, sheathed spring or resilient sleeve on the guide rod, the blood sampling before and the blood sampling finish after, hollow bracket, guide rod, buckle and be arranged in blood taking tube together move.
In the present embodiment, base is divided into left base and right base two parts, in other embodiments, also can be set to integrative-structure by base.
In other embodiments, positioning knob 6 and button 1 are linked by mechanism.
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. blood sampling auxiliary device, it is characterized in that, comprise housing and be arranged on the intravital blood taking needle placing mechanism of shell, blood taking tube placing mechanism, obstruct separating mechanism, detent mechanism, trigger mechanism, described obstruct separating mechanism only be provided with blood sampling that the pipe close puncture needle body for blood taking needle passes intercept mechanism and blood sampling back under the trigger mechanism effect with blood taking needle placing mechanism and the isolating separating mechanism of blood taking tube placing mechanism, described detent mechanism is used for blood taking needle placing mechanism and/or blood taking tube placing mechanism and housing are fixed in real time.
2. blood sampling auxiliary device as claimed in claim 1 is characterized in that, described housing comprises base and the over cap that cooperates with base, and described over cap is connected opening or closing with described base.
3. blood sampling auxiliary device as claimed in claim 1, it is characterized in that, described blood taking tube placing mechanism is connected by guiding mechanism with described housing, described blood taking tube placing mechanism in described housing along the guide groove of described guiding mechanism move and near or away from described blood taking needle placing mechanism, described blood taking needle placing mechanism is fixedlyed connected with described housing, and described detent mechanism is used for when blood sampling described blood taking tube placing mechanism and described housing being fixed.
4. blood sampling auxiliary device as claimed in claim 3 is characterized in that described guiding mechanism also comprises the guide rail that cooperates with guide groove, and described guide rail is arranged on the described housing, and described guide groove is arranged on the described blood taking tube placing mechanism; Perhaps described guide rail is arranged on the blood taking tube placing mechanism, and described guide groove is arranged on the described housing.
5. blood sampling auxiliary device as claimed in claim 3, it is characterized in that described detent mechanism is a positioning knob, described blood taking tube placing mechanism is provided with screwed hole, described positioning knob is screwed in the described screwed hole, and described positioning knob is to the inner precession of described screwed hole the time and described housing butt.
6. blood sampling auxiliary device as claimed in claim 3, it is characterized in that, described blood taking tube placing mechanism comprises that the blood taking tube that is formed by blood taking tube upper bracket and blood taking tube lower carriage lays the chamber, described blood taking tube is laid in the chamber and is provided with opening near an end that intercepts separating mechanism, described obstruct separating mechanism comprises near the push pedal of described opening setting and the baffle plate that is positioned at described push pedal opposite side, the top of described push pedal only is provided with the blood sampling hole that the pipe close puncture needle body for blood taking needle passes through, and the top of described push pedal intercepts mechanism as described blood sampling; The bottom of described push pedal is provided with guide rod and buckle near the one side of blood taking needle placing mechanism, is with elastic component on the described guide rod; Described baffle plate is provided with and described draw-in groove that is clasped and the gathering sill that only passes through for described guide rod, described buckle passes described draw-in groove and contiguous with described trigger mechanism or contact, and the bottom of described push pedal and described guide rod, described elastic component, described buckle and described baffle plate are as described separating mechanism.
7. blood sampling auxiliary device as claimed in claim 6, it is characterized in that, described blood taking tube placing mechanism is provided with curved button of clamping and deck, the curved button bit of described clamping on the described blood taking tube upper bracket and described deck is positioned on the described blood taking tube lower carriage or the curved button bit of described clamping on the described blood taking tube lower carriage and described deck be positioned on the described blood taking tube upper bracket, described deck longitudinally is provided with a plurality of buckling grooves, and the curved button of described clamping can stretch into the blood taking tube that formation varies in size in the different buckling grooves and lay the chamber.
8. blood sampling auxiliary device as claimed in claim 6, it is characterized in that, described trigger mechanism is a button, and described button is provided with and extend out to outer press-side of described housing and the trigger end that is connected with described press-side, and the free end of described trigger end is close to described buckle or contacts.
9. blood sampling auxiliary device as claimed in claim 3, it is characterized in that, described blood taking tube placing mechanism comprises that blood taking tube lays the chamber, described blood taking tube is laid in the chamber end plate top near described obstruct separating mechanism and only is provided with the blood sampling hole that the pipe close puncture needle body for blood taking needle passes through, the bottom of described end plate is provided with guide rod and buckle near the one side of blood taking needle placing mechanism, be with elastic component on the described guide rod, the top of described end plate intercepts mechanism as described blood sampling, described obstruct separating mechanism also comprises the baffle plate that is arranged between described push pedal and the described blood taking needle placing mechanism, described baffle plate is provided with and described draw-in groove that is clasped and the gathering sill that only passes through for guide rod, described buckle passes described draw-in groove and contiguous with described trigger mechanism or contact the bottom of described end plate, described push pedal, described guide rod, described elastic component, described buckle is as described separating mechanism.
10. blood sampling auxiliary device as claimed in claim 1, it is characterized in that, described blood taking tube placing mechanism is fixedlyed connected with described housing, described blood taking needle placing mechanism is connected by described guiding mechanism with described housing, and in described housing along the guide groove of described guiding mechanism move and near or away from described blood taking tube placing mechanism, described detent mechanism is used for when blood sampling described blood taking needle placing mechanism and described housing being fixed; The described actuation mechanism of leading also comprises the guide rail that cooperates with described guide groove, and described guide rail is arranged on the housing and described guide groove is arranged on the blood taking needle placing mechanism or described guide rail is arranged on the blood taking needle placing mechanism and described guide groove is arranged on the described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182321.3A CN103222870B (en) | 2013-05-16 | 2013-05-16 | A kind of blood collection auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182321.3A CN103222870B (en) | 2013-05-16 | 2013-05-16 | A kind of blood collection auxiliary device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103222870A true CN103222870A (en) | 2013-07-31 |
| CN103222870B CN103222870B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310182321.3A Active CN103222870B (en) | 2013-05-16 | 2013-05-16 | A kind of blood collection auxiliary device |
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| CN103222870B (en) | 2016-04-20 |
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