CN216569958U

CN216569958U - Three-way structure blood taking needle convenient for blood specimen collection

Info

Publication number: CN216569958U
Application number: CN202023069844.1U
Authority: CN
Inventors: 陈玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2022-05-24
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a three-way structure blood taking needle convenient for collecting blood samples, which comprises a blood drawing injector, wherein the inner side of the blood drawing injector is connected with an ejector block in a sliding manner; through setting up the blood sampling syringe needle, collect syringe needle and main pipe, pipe interface connection is moulded to the tee bend has first branch pipe and second branch pipe, thereby make the main pipe coupling at the syringe head end, blood sampling syringe needle and collection syringe needle are connected respectively to two bleeder, be used for the blood sampling and collect blood, respectively connect a steerable shut-off valve on two bleeder, a logical closure for controlling the bleeder, during the blood sampling, take out the syringe with blood through a bleeder earlier in, then this bleeder of shutting, open the bleeder of connecting vacuum negative pressure blood sampling test tube again, blood in the blood sampling syringe will be under the effect of negative pressure, get into in the vacuum blood sampling test tube, just so needn't draw the vein blood sampling syringe needle, also can gather many bottles of blood in succession, and still can avoid the air to be infected with the syringe needle, thereby lead to the blood sample contaminated.

Description

Three-way structure blood taking needle convenient for blood specimen collection

Technical Field

The utility model relates to the technical field of blood taking needles, in particular to a three-way structure blood taking needle convenient for collecting blood specimens.

Background

The venous blood sampling method is characterized by that it mainly adopts superficial vein positioned on the body surface, usually adopts elbow vein, hand back vein, internal ankle vein or femoral vein, and can be used for collecting external jugular vein blood for child, and according to the blood-collecting quantity it can select different types of syringes, and equip them with correspondent needles, and according to some special examinations, in order to prevent platelet activation it uses plastic syringe and siliconized test tube or plastic test tube, and for the patient whose venous blood vessel is thin, anatomical position is deep and peripheral blood volume is low, etc. and can make puncture blood-collecting operation, firstly, the puncture needle head is fed into the blood vessel and makes blood-return, and then the collection needle head is connected with vacuum test tube, but because the puncture difficulty is large, failure rate is high, and the condition that the blood can not be smoothly flowed out is often encountered in the beginning or in the midway, at this moment, the nurse often can choose to operate like this, separates earlier and gathers the syringe needle, then changes the syringe that does not take the syringe needle, relies on experience again to adjust the position of needle point in the blood vessel, withdraws the syringe immediately, adjusts the needle point to the position of ideal according to the resistance of withdrawing to blood of target volume is drawn back into the syringe, pulls out the needle after separation puncture syringe needle and syringe, and the syringe needle is connected again, pierces the vacuum test tube one by one, lets the blood in the syringe get into the vacuum test tube and accomplishes the blood sampling work.

Disclosure of Invention

The utility model aims to provide a three-way structure blood taking needle convenient for collecting blood samples, and aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a tee bend structure blood taking needle convenient to blood sample is collected, includes the syringe of drawing blood, the inboard sliding connection of syringe of drawing blood has the kicking block, kicking block one side fixedly connected with push rod, push rod other end fixedly connected with handle, the one side that the handle was kept away from to the syringe of drawing blood is provided with the connector, the connector is connected with the main pipe block, the first branch pipe of one side fixedly connected with and the second branch pipe of connector are kept away from to the main pipe, all be provided with steerable shut valve in the first branch pipe and the second branch pipe outside, institute

The other end of the first branch pipe is provided with a vein blood drawing needle head, the other end of the second branch pipe is provided with a collection needle head, and the outer side of the collection needle head is provided with a protective sleeve.

As a further scheme of the utility model: and a scale strip is arranged on the outer side of the blood drawing injector.

As a still further scheme of the utility model: the top of the controllable locking valve is provided with an adjusting button, the adjusting button is rotationally connected with the rotary disc, the rotary disc is fixedly connected with a connecting block, the connecting block is located on the inner side of the controllable locking valve, the connecting block is connected with the controllable locking valve in a sliding mode through a first sliding block and a second sliding block, one side, far away from the rotary disc, of the connecting block is symmetrically and fixedly connected with a threaded rod, a nut is arranged on the outer side of the threaded rod, and a rubber layer is arranged on the same side of the connecting block.

As a still further scheme of the utility model: the inner side of the controllable locking valve is provided with an adjusting cavity, the outer side of the adjusting button is fixedly connected with a limiting block, and a clamping groove is formed in the adjusting cavity corresponding to the limiting block.

As a still further scheme of the utility model: the utility model discloses a locking valve, including steerable locking valve, connecting block, second slider, spring and anti-disengaging piece, steerable locking valve inboard is provided with the regulation box, the inboard sliding connection of regulation box has the slide bar, the one end fixedly connected with locking button of connecting block is kept away from to the slide bar, the one end fixedly connected with rubber head that the slide bar is close to the connecting block, the second slider corresponds the rubber head position and is provided with the fixed slot, the slide bar passes through spring and anti-disengaging piece fixed connection, anti-disengaging piece and spring fixed connection, anti-disengaging piece and slide cartridge sliding connection.

As a still further scheme of the utility model: the utility model discloses a blood sampling test tube, including protective sheath, movable block, one side fixedly connected with shifting button, the one end symmetry fixedly connected with that the second branch pipe was kept away from to the protective sheath keeps off, keep off and be connected with T type groove block, T type groove is located vacuum blood sampling test tube inboard.

Compared with the prior art, the utility model has the beneficial effects that:

1. through setting up the blood sampling syringe needle, collect syringe needle and main pipe, pipe interface connection is moulded to the tee bend has first branch pipe and second branch pipe, thereby make the main pipe connect at the syringe head end, blood sampling syringe needle and collection syringe needle are connected respectively to two bleeder, be used for blood sampling and collection blood, respectively connect a steerable shut-off valve on two bleeder, a logical closure for controlling the bleeder, during the blood sampling, take out blood to the syringe in earlier through a bleeder, then this bleeder of shutting, open the bleeder of connecting vacuum negative pressure blood sampling test tube again, the syringe

The blood in the tube enters a vacuum blood collection test tube under the action of negative pressure; therefore, the vein needle does not need to be pulled out, a plurality of bottles of blood can be continuously collected, and air can be prevented from polluting the needle head, so that the blood sample is polluted;

2. through setting up the scale bar, thereby make things convenient for medical personnel to master the quantity of collecting blood, through setting up the kicking block, thereby when making the negative pressure inhale blood in the vacuum blood sampling test tube, can push blood out cleanly, avoid remaining pathological change, through setting up the adjusting knob, the carousel, adjust chamber and stopper, thereby accessible is rotatory the adjusting knob on the carousel, thereby make the stopper card in the adjusting knob outside go into the draw-in groove in the adjusting chamber outside, thereby prevent the adjusting knob from dropping because of gravity, keep the open mode of steerable shut valve, through setting up the threaded rod, the connecting block, the second slider, slide bar and spring, when needing to close, the adjusting knob is rotated, make the connecting block fall to the bottom, push down the branch pipe, block the access, and stimulate the slide bar through the locking knob, after the second slider drives the connecting block to reach the bottom, loosen the locking knob, thereby block the rubber head into the second slider, thereby fix, keep steerable shut-off valve closed state, through setting up protective sheath, movable block and group button to when not pricking the vacuum blood sampling test tube with the collection syringe needle, the protection is collected the syringe needle, avoids being contaminated.

Drawings

FIG. 1 is a perspective view of a three-way lancet for facilitating the collection of a blood sample; FIG. 2 is a front view of a three-way lancet for facilitating the collection of a blood sample;

FIG. 3 is a front view of a controllable latching valve in a three-way lancet for facilitating the collection of a blood sample;

FIG. 4 is a side cross-sectional view of a controllable latching valve in a three-way lancet for facilitating collection of a blood sample;

FIG. 5 is a front cross-sectional view of a protective sheath in a three-way lancet for facilitating collection of a blood sample.

In the figure: the blood drawing syringe comprises a blood drawing syringe 1, a push rod 2, a handle 3, a scale strip 4, a trunk tube 5, a first branch tube 6, a second branch tube 7, a controllable locking valve 8, a threaded rod 9, an adjusting button 10, a locking button 11, a top block 12, a limiting block 13, an adjusting cavity 14, a rotary disc 15, a first slider 16, a connecting block 17, a second slider 18, a rubber layer 19, a sliding rod 20, a connecting rod 21, a spring 22, a moving block 23, a shifting button 24, a protective sleeve 25, a baffle 26, a vacuum blood drawing test tube 27, a collecting needle 28 and a vein blood drawing needle 29.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, in an embodiment of the present invention, a three-way structure blood taking needle convenient for collecting a blood sample includes a blood drawing syringe 1, an ejector block 12 is slidably connected to an inner side of the blood drawing syringe 1, a push rod 2 is fixedly connected to one side of the ejector block 12, a handle 3 is fixedly connected to the other end of the push rod 2, and the blood drawing syringe 1 is far away from the blood drawing syringe 1

A connector is arranged at one side of the handle 3 and is clamped and connected with the main pipe 5, and the main pipe 5 is far away

A first branch pipe 6 and a second branch pipe 7 are fixedly connected with one side of the connecting port, and the first branch pipe 6 and the second branch pipe

The controllable locking valve 8 is arranged on the outer side of the main trunk 5, the venous blood drawing needle head 29 is arranged at the other end of the first branch pipe 6, the collecting needle head 28 is arranged at the other end of the second branch pipe 7, the protective sleeve 25 is arranged on the outer side of the collecting needle head 28, a blood and gas needle with a three-way pipe for drawing blood is designed, and the main trunk 5 is connected with the blood drawing injector 1

The main pipe 5 and the first branch pipe 6 are respectively connected with a venous blood drawing needle 29 and a collecting needle 28,

and a protective sleeve 25 is arranged outside the collecting needle 28 for protecting to prevent air pollution and to draw blood from vein

Needle 29 and collecting needle 28 are used for taking and collecting blood, respectively, outside main tube 5 and first branch tube 6

A controllable locking valve 8 is respectively connected on each side for controlling the opening and closing of the main pipe 5 and the first branch pipe 6 for blood sampling

When the blood sampling is finished, the controllable locking valve 8 on the outer side of the second branch pipe 7 is closed, the controllable locking valve 8 on the first branch pipe 6 is opened, after the blood sampling is finished, the controllable locking valve 8 on the first branch pipe 6 is closed, the controllable locking valve 8 on the outer side of the second branch pipe 7 is opened, the collected blood is injected into the vacuum blood sampling test tube 27, so that a vein needle does not need to be pulled out, a plurality of bottles of blood can be collected, and the phenomenon that the air pollutes a needle head can be avoided, so that the blood sample is polluted.

Preferably, the outer side of the blood drawing injector 1 is provided with a scale strip 4, and the scale strip is carved on the outer side of the blood drawing injector 1

The degree bar 4 grasps the amount of blood drawn.

Preferably, the controllable locking valve 8 is provided with an adjusting knob 10 at the top, and the adjusting knob 10 rotates with the rotary disk 15

The rotary disc 15 is fixedly connected with a connecting block 17, the connecting block 17 is positioned at the inner side of the controllable locking valve 8,

the connecting block 17 is connected to the controllable latching valve 8 by a first slide 16 and a second slide 18 in a sliding manner

The block 17 is far away from the threaded rod 9 of the symmetrical fixedly connected with in one side of carousel 15, and the threaded rod 9 outside is provided with the nut, and connecting block 17 is provided with rubber layer 19 with one side, and connecting block 17 bottom is provided with rubber layer 19, prevents to damage the branch pipe surface, carries out supplementary fixed through the nut in the threaded rod 9 outside.

Preferably, the controllable locking valve 8 is provided with a regulating cavity 14 inside, and the outside of the regulating knob 10 is fixedly connected

A limiting block 13, a clamping groove is arranged on the adjusting cavity 14 corresponding to the position of the limiting block 13, and the clamping groove is arranged on the rotary disc 15

The adjusting button 10 is rotated to make the adjusting button 10 drive the limiting block 13 to rotate, so that the limiting block 13 is clamped in

A clamping groove outside the adjusting cavity 14 is adjusted, so that the adjusting button 10 is communicated with the connecting block 17 for fixing, and the adjustment is ensured

The controllable latching valve 8 on the outside of the first branch 6 is open.

Preferably, the inner side of the controllable locking valve 8 is provided with an adjusting box, and the inner side of the adjusting box is slidably connected with a slide

A rod 20, one end of the sliding rod 20 far away from the connecting block 17 is fixedly connected with a locking button 11, and the sliding rod 20 is close to the connecting block

One end of the connecting block 17 is fixedly connected with a rubber head, and the second sliding block 18 is provided with a fixing part corresponding to the position of the rubber head

The groove, slide bar 20 passes through spring 22 and anticreep piece fixed connection, anticreep piece and spring 22 fixed connection, anticreep piece and slide cartridge sliding connection, when the route was closed in needs, outwards take out locking button 11 to drive slide bar 20 and slide, thereby make connecting rod 21 oppress spring 22, produce deformation elasticity, and press connecting block 17 to

And, the locking knob 11 is released, so that the spring 22 pushes the connecting rod 21 out due to the elastic force, thereby sliding the slide bar 20

The rubber head at the other end pushes against the second slider 18, thus fixing the connecting block 17 and keeping the passage of the controllable latching valve 8 closed.

Preferably, the inner side of the protective sleeve 25 is slidably connected with a movable block 23, one side of the movable block 23 is fixedly connected with a shifting button 24, one end of the protective sleeve 25, far away from the second branch pipe 7, is symmetrically and fixedly connected with a baffle 26, the baffle 26 is clamped and connected with a T-shaped groove, the T-shaped groove is positioned on the inner side of the vacuum blood sampling test tube 27, and the protective sleeve outside the collecting needle 28 is

25, which is clamped into a T-shaped groove at the inner side of the vacuum blood collection test tube 27 through a stop 26 and slides on the outer side of the protective sleeve 25

Dial button 24 to slide through driving movable block 23, thereby make collection syringe needle 28 drive second branch pipe 7 pierce vacuum blood sampling test tube 27 in, thereby protect collection syringe needle 28, avoid air pollution, and pierce vacuum blood sampling test tube 27 accurate quick, the simple operation.

The working principle of the utility model is as follows:

when in use, the three-way structure blood taking needle convenient for collecting blood samples is designed at present, and the main trunk pipe 5 is connected with the main trunk pipe

Is connected outside a connecting port of the blood drawing injector 1 for sampling, and the main pipe 5 and the first branch pipe 6 are respectively connected with a vein drawing

A blood needle 29 and a collection needle 28, and a protective sleeve 25 is arranged outside the collection needle 28 for protection

Preventing air pollution, and the vein blood drawing needle 29 and the collecting needle 28 are respectively used for drawing blood and collecting blood

A controllable locking valve 8 is connected to the outside of the main pipe 5 and the first branch pipe 6 respectively for controlling the main pipe 5 and the first branch pipe 6

When the first branch pipe 6 is opened and closed, the controllable locking valve 8 at the outer side of the second branch pipe 7 is closed, the controllable locking valve 8 on the first branch pipe 6 is opened, the adjusting button 10 is rotated on the rotary disc 15, so that the adjusting button 10 drives the limiting block 13 to rotate, the limiting block 13 is clamped into the clamping groove at the outer side of the adjusting cavity 14,

thereby connecting the adjusting button 10 with the connecting block 17 for fixing, thereby ensuring the controllability of the outside of the first branch pipe 6

The closing valve 8 is opened, the venous blood drawing needle 29 is punctured, and the blood drawing syringe 1 is drawn

The handle 3 on the side, thereby the push rod 2 drives the top block 12 to slide, the blood is pumped into the blood drawing injector 1,

the amount of the blood drawn is mastered by the scale strip 4 on the outer side of the blood drawing injector 1, after the blood drawing is finished, the adjusting button 10 is rotated again, so that the limiting block 13 is taken out from the clamping groove, the locking button 11 is drawn outwards, the sliding rod 20 is driven to slide, the connecting rod 21 presses the spring 22 to generate deformation elasticity, and meanwhile, the pressing force is pressed

The knob 10 is lowered so that the knob 10 pushes the connection block 17 to descend and the connection block 17 descends by the first slide

The block 16 and the second sliding block 18 slide in the connecting block 17, and the bottom of the connecting block 17 is provided with a rubber layer 19,

the outer surface of the branch pipe is prevented from being damaged, and the descending of the connecting block 17 can drive the threaded rod 9 to descend until the connecting block

17 falls to the bottom, the locking knob 11 is released, and the spring 22 pushes out the connection rod 21 due to the elastic force, thereby

The rubber head at the other end of the slide rod 20 is pushed into the second slide block 18, so that the connecting block 17 is fixed, and thereby

Keeping the controllable blocking valve 8 closed, and auxiliary fixing by means of a nut on the outside of the threaded rod 9,

after closing the controllable blocking valve 8 outside the first branch 6, the protective sheath 25 outside the collecting needle 28,

is clamped into a T-shaped groove at the inner side of a vacuum blood sampling test tube 27 through a baffle 26 and slides a toggle button at the outer side of a protective sleeve 25

24 to slide through driving movable block 23, thereby make collection syringe needle 28 drive second branch pipe 7 pierce vacuum blood sampling test tube 27 in, thereby protection collection syringe needle 28 avoids air pollution, and pierces vacuum blood sampling test tube 27 accurate quick, and the simple operation, then open the steerable latching valve 8 in the second branch pipe 7 outside, take out

The blood in the blood syringe 1 will enter the vacuum blood sampling test tube 27 under the negative pressure, so that it is not necessary to pull out the venous blood sampling needle 29, and a plurality of bottles of blood can be collected.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a three way construction blood taking needle convenient to blood sample is collected, includes blood syringe (1), its characterized in that: draw blood syringe (1) inboard sliding connection has kicking block (12), kicking block (12) one side fixedly connected with push rod (2), push rod (2) other end fixedly connected with handle (3), one side that keeps away from handle (3) in blood syringe (1) is provided with the connector, the connector is connected with main pipe (5) block, the first branch pipe of one side fixedly connected with (6) and second branch pipe (7) of connector are kept away from in main pipe (5), first branch pipe (6) and second branch pipe (7) outside all are provided with steerable locking valve (8), the other end of first branch pipe (6) is provided with vein blood drawing syringe needle (29), the other end of second branch pipe (7) is provided with collection syringe needle (28), it is provided with protective sheath (25) to collect syringe needle (28) outside.

2. The three-way structure blood collection needle facilitating blood specimen collection according to claim 1, characterized in that: and a scale strip (4) is arranged on the outer side of the blood drawing injector (1).

3. The three-way structure blood collection needle facilitating blood specimen collection according to claim 1, characterized in that: steerable blocking valve (8) top is provided with adjusting knob (10), adjusting knob (10) rotate with carousel (15) and are connected, carousel (15) and connecting block (17) fixed connection, connecting block (17) are located steerable blocking valve (8) inboard, connecting block (17) are through first slider (16) and second slider (18) and steerable blocking valve (8) sliding connection, one side symmetry fixedly connected with threaded rod (9) of carousel (15) are kept away from in connecting block (17), threaded rod (9) outside is provided with the nut, connecting block (17) are provided with rubber layer (19) with one side.

4. The three-way structure blood collection needle facilitating blood specimen collection according to claim 3, characterized in that: the inner side of the controllable locking valve (8) is provided with an adjusting cavity (14), the outer side of the adjusting button (10) is fixedly connected with a limiting block (13), and a clamp is arranged on the adjusting cavity (14) corresponding to the position of the limiting block (13)

A groove.

5. The three-way structure blood collection needle facilitating blood specimen collection according to claim 4, wherein: steerable locking valve (8) inboard is provided with the regulation box, the inboard sliding connection of regulation box has slide bar (20), the one end fixedly connected with locking button (11) of connecting block (17) are kept away from in slide bar (20), the one end fixedly connected with rubber head that slide bar (20) are close to connecting block (17), second slider (18) correspond rubber head position and are provided with the fixed slot, slide bar (20) are through spring (22) and anticreep piece fixed connection, anticreep piece and spring (22) fixed connection, anticreep piece and slide cartridge sliding connection.

6. The three-way lancet for facilitating blood specimen collection according to claim 1, wherein the three-way lancet is of a three-way structure

Is characterized in that: protective sheath (25) inboard sliding connection has movable block (23), movable block (23) one side fixedly connected with shifting button (24), the one end symmetry fixedly connected with that second branch pipe (7) were kept away from in protective sheath (25) keeps off (26), keep off (26) and be connected with T type groove block, T type groove is located vacuum blood sampling test tube (27) inboardly.