CN210727756U - Multifunctional blood taking needle - Google Patents

Abstract

The utility model discloses a multifunctional blood taking needle, be the heparin tube that the opening set up including top and bottom, be equipped with the syringe needle in the heparin tube, the outside activity cover of heparin tube is equipped with the fixed cover that the bottom set up for the opening, and bottom one side of heparin tube is connected with the blanking cap, and the blanking cap cooperatees with fixed cover, and the intraductal sealed slip cover of heparin tube is equipped with the piston, the top fixedly connected with push rod of piston, the top of push rod extend to in the fixed cover and with the top inner wall fixed connection of fixed cover. The utility model relates to a rationally, convenient operation is convenient for pop out syringe needle auto-eject and change, need not hand and syringe needle contact, avoids manual syringe needle to appear the phenomenon that the hand was hindered to the mistake, avoids cross infection effectively, reduces the risk, and is convenient for accomodate the heparin tube, has saved a large amount of spaces, and is convenient for wash the lateral wall of heparin tube, has reached repetitious usage's purpose, is favorable to using, satisfies the user demand.

Description

Multifunctional blood taking needle

Technical Field

The utility model relates to a blood taking needle technical field especially relates to a multi-functional blood taking needle.

Background

In the clinical laboratory of hospital and blood sampling mechanism often have blood inspection, chemical examination and sampling, these all need to be accomplished with the blood taking needle, current multi-functional blood taking needle usually includes the casing, hold the needle body in the casing and cover the blanking cover of needle point, in the use, take off the blanking cover earlier, then will take a blood sample to the blood sampling position and take a blood sample, the blood droplet that obtains usually inhales clean straw earlier, then instil into the application of sample hole and carry out blood sample test, but current multi-functional blood taking needle is not convenient for change its syringe needle, current multi-functional blood taking needle is when changing the syringe needle, generally pull out the syringe needle with the hand between the personnel, insert new syringe needle again, the in-process that pulls out the syringe needle at the personnel needs hard, cause the phenomenon that the syringe needle accidentally injured to hand very easily, lead to cross infection, can not satisfy the user demand, and there is the big problem, therefore, we have proposed a multifunctional lancet for solving the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a multifunctional blood taking needle.

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

a multifunctional blood taking needle comprises a blood taking tube with an opening at the top and the bottom, a needle head is arranged in the blood taking tube, a fixed sleeve with an opening at the bottom is movably sleeved at the outer side of the blood taking tube, a blocking cover is connected at one side of the bottom of the blood taking tube and matched with the fixed sleeve, a piston is sleeved in the blood taking tube in a sealing and sliding manner, a push rod is fixedly connected at the top of the piston, the top of the push rod extends into the fixed sleeve and is fixedly connected with the inner wall of the top of the fixed sleeve, the top of the blood taking tube is fixedly connected with the bottom ends of a plurality of first springs, the top ends of the first springs are movably contacted with the inner wall of the top of the fixed sleeve, a circular plate is arranged in the blood taking tube in a sealing and sliding manner, a clamping mechanism and an automatic ejecting mechanism matched with the, the bottom of syringe needle extends to the below of heparin tube, the sealed fixed cover of connecting block is established on the syringe needle, set up the first groove that the bottom set up for the opening on one side inner wall of first through-hole, the first locating lever of fixedly connected with on one side inner wall of first groove, establish the kelly in the first groove, kelly slip cap establishes on first locating lever, the draw-in groove has been seted up to one side of connecting block, the one end of kelly extends to in the draw-in groove, a plurality of second springs of fixedly connected with between the one end of kelly and one side inner wall of first groove, the top fixedly connected with L shape pole of kelly, the one end of L shape pole extends to outside the heparin tube, first rectangular hole has been seted up at the top of L shape pole, set up the second rectangular hole that the bottom set up for the opening on one side inner wall of fixed cover, fixed mounting has the trapezoidal piece on the top inner wall of second rectangular hole, establish to the inclined plane on one side of trapezoidal piece, the trapezoidal.

Preferably, the automatic pop-up mechanism is including seting up the second groove on first through-hole opposite side inner wall, and the bottom in second groove is established to the opening, fixedly connected with T shape locating lever on the top inner wall in second groove, and the movable sleeve is equipped with the carriage release lever on the T shape locating lever, fixedly connected with extension spring between the bottom of carriage release lever and the inboard bottom of T shape locating lever, the opposite side fixedly connected with dog of connecting block, the top of dog and the bottom swing joint of carriage release lever.

Preferably, a square hole is formed in the top of the moving rod, balls are nested on the inner walls of four sides of the square hole, the T-shaped positioning rod is located between the four balls, and the balls are in rolling contact with the outer side of the T-shaped positioning rod.

Preferably, a rectangular groove is formed in one side of the clamping rod, and the side wall of the rectangular groove is in sliding connection with the outer side of the first positioning rod.

Preferably, the connecting block is fixedly sleeved with a first sealing ring, and the outer side of the first sealing ring is in movable contact with the side wall of the first through hole.

Preferably, the piston is fixedly sleeved with a second sealing ring, and the outer side of the second sealing ring is in movable contact with the side wall of the blood collection tube.

Preferably, the sum of the total elastic force of the plurality of first springs is smaller than the sum of the total elastic force of the plurality of second springs.

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

by the blood sampling tube, the fixed sleeve, the piston, the push rod, the first spring, the circular plate, the second groove, the connecting block, the needle head, the first groove, the clamping rod, the first positioning rod, the second spring, the stop block, the T-shaped positioning rod and the movable rod are matched with the extension spring, when in blood sampling, the fixed sleeve is pressed downwards, the fixed sleeve compresses the first spring and drives the push rod to move downwards, the push rod drives the piston to slide on the side wall of the blood sampling tube and push out the gas in the blood sampling tube, the needle head is inserted into the part for blood sampling, the pressure on the fixed sleeve is released, at the moment, the elastic force of the first spring drives the fixed sleeve to move upwards, the fixed sleeve drives the piston to move upwards through the push rod, negative pressure is generated in the blood sampling tube and blood is pumped through the needle head while the piston moves upwards, the pumped blood enters the blood sampling tube through the, the fixing sleeve is continuously pressed downwards, the fixing sleeve drives the trapezoidal block to extrude the first rectangular hole, the extrusion force drives the clamping rod to move out of the clamping groove through the L-shaped rod and compresses the second spring, the elastic force of the extension spring drives the stop block to move downwards through the moving rod, the stop block drives the needle head to move out of the first through hole through the connecting block, the needle head is ejected out under the elastic force of the extension spring without contacting the needle head with the hand, the hand is prevented from being accidentally injured, when the top of the L-shaped rod contacts with the inner wall of the top of the second rectangular hole, the fixing sleeve is stopped being pressed, the fixing sleeve is fixed under the elastic force of the second spring, the blood sampling tube is positioned in the fixing sleeve, the storage of the blood sampling tube is further completed, the bottom end of the fixing sleeve is blocked by utilizing the blocking cover, when the side wall of the blood sampling tube needs to be cleaned, the fixing sleeve is taken down from the blood, the side wall of the blood sampling tube can be cleaned and disinfected conveniently, and the purpose of repeated utilization is achieved.

The utility model relates to a rationally, convenient operation is convenient for pop out syringe needle auto-eject and change, need not hand and syringe needle contact, avoids manual syringe needle to appear the phenomenon that the hand was hindered to the mistake, avoids cross infection effectively, reduces the risk, and is convenient for accomodate the heparin tube, has saved a large amount of spaces, and is convenient for wash the lateral wall of heparin tube, has reached repetitious usage's purpose, is favorable to using, satisfies the user demand.

Drawings

FIG. 1 is a schematic structural view of a multifunctional blood taking needle of the present invention;

FIG. 2 is a schematic structural view of part A of the multifunctional blood taking needle of the present invention;

FIG. 3 is a schematic structural view of the multi-functional blood sampling needle according to the present invention, wherein the blood collection tube is received in the fixing sheath;

fig. 4 is a schematic structural view of the part B of the multifunctional blood taking needle of the present invention.

In the figure: 1 heparin tube, 2 fixed cover, 3 pistons, 4 push rods, 5 first springs, 6 plectanes, 7 second grooves, 8 connecting blocks, 9 syringe needles, 10 first grooves, 11 draw-in grooves, 12 kellies, 13 first locating levers, 14 second springs, 15 dogs, 16T shape locating levers, 17 movable rod, 18 extension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-4, a multifunctional blood sampling needle comprises a blood sampling tube 1 with an opening at the top and the bottom, a needle 9 is arranged in the blood sampling tube 1, a fixed sleeve 2 with an opening at the bottom is movably sleeved outside the blood sampling tube 1, a blocking cover is connected to one side of the bottom of the blood sampling tube 1 and matched with the fixed sleeve 2, a piston 3 is sleeved in the blood sampling tube 1 in a sealing and sliding manner, a push rod 4 is fixedly connected to the top of the piston 3, the top of the push rod 4 extends into the fixed sleeve 2 and is fixedly connected with the inner wall of the top of the fixed sleeve 2, the top of the blood sampling tube 1 is fixedly connected with the bottom of a plurality of first springs 5, the top of the first springs 5 is movably contacted with the inner wall of the top of the fixed sleeve 2, a circular plate 6 is fixedly sleeved in the blood sampling tube 1 in a sealing manner, a clamping mechanism and an automatic ejecting mechanism, a connecting block 8 is hermetically and movably sleeved in the first through hole, the bottom end of the needle head 9 extends to the lower part of the blood sampling tube 1, the connecting block 8 is hermetically and fixedly sleeved on the needle head 9, a first groove 10 with an opening at the bottom is arranged on the inner wall at one side of the first through hole, a first positioning rod 13 is fixedly connected on the inner wall at one side of the first groove 10, a clamping rod 12 is arranged in the first groove 10, the clamping rod 12 is sleeved on the first positioning rod 13 in a sliding manner, a clamping groove 11 is arranged at one side of the connecting block 8, one end of the clamping rod 12 extends into the clamping groove 11, a plurality of second springs 14 are fixedly connected between one end of the clamping rod 12 and the inner wall at one side of the first groove 10, an L-shaped rod is fixedly connected at the top of the clamping rod 12, one end of the L-shaped rod extends out of the blood sampling tube 1, a first rectangular hole is arranged at the top of the L-shaped rod, a second rectangular hole with an opening at the bottom is arranged on the, one side fixed mounting of first triangle piece has trapezoidal piece, and one side of trapezoidal piece is established to the inclined plane, and trapezoidal piece sets up to one side and the first rectangular hole of slope cross-section and cooperatees, the utility model relates to a rationally, convenient operation is convenient for pop out syringe needle 9 auto-eject and change, need not hand and syringe needle 9 contact, avoids manual syringe needle 9 to appear the phenomenon that the hand was hindered to the mistake, avoids cross infection effectively, reduces the risk, and is convenient for accomodate heparin tube 1, has saved a large amount of spaces, and is convenient for wash heparin tube 1's lateral wall, has reached repetitious usage's purpose, is favorable to using, satisfies the user demand.

In the utility model, the automatic pop-up mechanism comprises a second groove 7 arranged on the inner wall of the other side of the first through hole, the bottom of the second groove 7 is arranged as an opening, a T-shaped positioning rod 16 is fixedly connected on the inner wall of the top of the second groove 7, a moving rod 17 is movably sleeved on the T-shaped positioning rod 16, a tension spring 18 is fixedly connected between the bottom of the moving rod 17 and the inner bottom of the T-shaped positioning rod 16, a stop block 15 is fixedly connected on the other side of the connecting block 8, the top of the stop block 15 is movably contacted with the bottom of the moving rod 17, a square hole is arranged at the top of the moving rod 17, balls are all nested on the inner walls of four sides of the square hole, the T-shaped positioning rod 16 is positioned between the four balls, the balls are in rolling contact with the outer side of the T-shaped positioning rod 16, a rectangular groove is arranged on one side of the clamping rod 12, the outside of first sealing washer and the lateral wall movable contact of first through-hole, fixed cover is equipped with the second sealing washer on the piston 3, the outside of second sealing washer and the lateral wall movable contact of heparin tube 1, and the total elasticity sum of a plurality of first springs 5 is less than the sum of the total elasticity of a plurality of second springs 14, the utility model relates to a rationally, convenient operation is convenient for pop out syringe needle 9 auto-eject and change, need not hand and syringe needle 9 contact, avoids manual syringe needle 9 to appear the phenomenon that the hand is hindered to the mistake, avoids cross infection effectively, reduces the risk, and is convenient for accomodate heparin tube 1, has saved a large amount of spaces, and is convenient for wash the lateral wall of heparin tube 1, has reached repetitious usage's purpose, is favorable to using, satisfies the user demand.

Example two

Referring to fig. 1-4, a multifunctional blood collection needle comprises a blood collection tube 1 with an opening at the top and the bottom, a needle 9 is arranged in the blood collection tube 1, a fixed sleeve 2 with an opening at the bottom is movably sleeved outside the blood collection tube 1, a connecting rope is bonded at one side of the bottom of the blood collection tube 1, a plug is bonded at the bottom end of the connecting rope and matched with the fixed sleeve 2, a piston 3 is hermetically and slidably sleeved in the blood collection tube 1, a push rod 4 is bonded at the top of the piston 3, the top end of the push rod 4 extends into the fixed sleeve 2 and is welded with the inner wall of the top of the fixed sleeve 2, the top end of the blood collection tube 1 is welded with the bottom ends of a plurality of first springs 5, the top end of the first springs 5 is movably contacted with the inner wall of the top of the fixed sleeve 2, a circular plate 6 is hermetically and fixedly sleeved in the blood collection tube 1, a clamping mechanism and an automatic ejecting mechanism, the first through hole is internally provided with a connecting block 8 in a sealing and movable sleeve manner, the bottom end of the needle head 9 extends to the lower part of the blood sampling tube 1, the connecting block 8 is fixedly sleeved on the needle head 9 in a sealing manner, the inner wall of one side of the first through hole is provided with a first groove 10 with an opening at the bottom, the inner wall of one side of the first groove 10 is welded with a first positioning rod 13, a clamping rod 12 is arranged in the first groove 10, the clamping rod 12 is sleeved on the first positioning rod 13 in a sliding manner, one side of the connecting block 8 is provided with a clamping groove 11, one end of the clamping rod 12 extends into the clamping groove 11, a plurality of second springs 14 are welded between one end of the clamping rod 12 and the inner wall of one side of the first groove 10, the top of the clamping rod 12 is welded with an L-shaped rod, one end of the L-shaped rod extends out of the blood sampling tube 1, the top of the L-shaped rod is provided with a first rectangular hole, the inner wall of one side, one side welding of first triangle piece has trapezoidal piece, and one side of trapezoidal piece is established to the inclined plane, and trapezoidal piece sets up to one side and the first rectangular hole of slope cross-section and cooperatees, the utility model relates to a rationally, convenient operation is convenient for pop out syringe needle 9 auto-eject and change, need not hand and syringe needle 9 contact, avoids manual syringe needle 9 to appear the phenomenon that the mistake hurt hand, avoids cross infection effectively, reduces the risk, and is convenient for accomodate heparin tube 1, has saved a large amount of spaces, and is convenient for wash heparin tube 1's lateral wall, has reached repetitious usage's purpose, is favorable to using, satisfies the user demand.

In the utility model, the automatic pop-up mechanism comprises a second groove 7 arranged on the inner wall of the other side of the first through hole, the bottom of the second groove 7 is arranged as an opening, a T-shaped positioning rod 16 is welded on the inner wall of the top of the second groove 7, a moving rod 17 is movably sleeved on the T-shaped positioning rod 16, a tension spring 18 is welded between the bottom of the moving rod 17 and the inner top of the T-shaped positioning rod 16, a stop block 15 is welded on the other side of a connecting block 8, the top of the stop block 15 is movably contacted with the bottom of the moving rod 17, a square hole is arranged at the top of the moving rod 17, balls are nested on the inner walls of four sides of the square hole, the T-shaped positioning rod 16 is positioned between the four balls, the balls are in rolling contact with the outer side of the T-shaped positioning rod 16, a rectangular groove is arranged on one side of a clamping rod 12, the outside of first sealing washer and the lateral wall movable contact of first through-hole, fixed cover is equipped with the second sealing washer on the piston 3, the outside of second sealing washer and the lateral wall movable contact of heparin tube 1, and the total elasticity sum of a plurality of first springs 5 is less than the sum of the total elasticity of a plurality of second springs 14, the utility model relates to a rationally, convenient operation is convenient for pop out syringe needle 9 auto-eject and change, need not hand and syringe needle 9 contact, avoids manual syringe needle 9 to appear the phenomenon that the hand is hindered to the mistake, avoids cross infection effectively, reduces the risk, and is convenient for accomodate heparin tube 1, has saved a large amount of spaces, and is convenient for wash the lateral wall of heparin tube 1, has reached repetitious usage's purpose, is favorable to using, satisfies the user demand.

The working principle is as follows: when the blood sampling device is used for sampling blood, the fixing sleeve 2 is pressed downwards, the fixing sleeve 2 drives the push rod 4 to move downwards, the fixing sleeve 2 moves downwards and simultaneously compresses the first spring 5, the push rod 4 drives the piston 3 to slide on the side wall of the blood sampling tube 1, the piston 3 is in sealed sliding connection with the blood sampling tube 1, the piston 3 moves downwards and simultaneously pushes out gas in the blood sampling tube 1, the needle head 9 is inserted into a blood sampling part, the pressure on the fixing sleeve 2 is released, the first spring 5 in a compressed state resets at the moment, the elastic force of the first spring 5 drives the fixing sleeve 2 to move upwards, the fixing sleeve 2 drives the piston 3 to move upwards through the push rod 4, the piston 3 moves upwards and simultaneously generates negative pressure in the blood sampling tube 1, the negative pressure performs blood sampling through the needle head 9, the extracted blood enters the blood sampling tube 1 through the needle head 9 and then injects the extracted blood into, when the needle 9 needs to be replaced, the fixing sleeve 2 is continuously pressed downwards, the fixing sleeve 2 drives the trapezoidal block to move downwards, the trapezoidal block extrudes the first rectangular hole while moving downwards, the L-shaped rod is driven by extrusion force to move towards the direction far away from the needle 9, the L-shaped rod drives the clamping rod 12 to slide on the first positioning rod 13, the clamping rod 12 compresses the second spring 14 while sliding, when the clamping rod 12 moves out of the clamping groove 11, the fixing of the connecting block 8 is released, at the moment, the elastic force of the extension spring 18 drives the moving rod 17 to move downwards, the moving rod 17 drives four balls to roll outside the T-shaped positioning rod 16, the moving rod 17 extrudes the stop block 15 while moving downwards, the extrusion force drives the stop block 15 to move downwards, the stop block 15 drives the connecting block 8 to move downwards, the connecting block 8 drives the needle 9 to move out of the first through hole while moving downwards, under extension spring 18's elastic force effect, make syringe needle 9 popped out, make be convenient for pop out syringe needle 9 automatically, and need not syringe needle 9 and hand contact, prevent the accidental injury staff, reduce the risk, when the top of L shape pole and the top inner wall contact of second rectangular hole, stop pressing fixed cover 2, under second spring 14's elastic force effect, make the trapezoidal piece crowded tightly, and then make fixed cover 2 fixed, blood sampling tube 1 is located fixed cover 2 this moment, and then accomodating of blood sampling tube 1 has been accomplished, utilize the blanking cover to carry out the shutoff to the bottom of fixed cover 2 immediately, a large amount of spaces have been saved, when needs wash the lateral wall of blood sampling tube 1, take off fixed cover 2 from blood sampling tube 1, can be convenient for wash the disinfection to the lateral wall of blood sampling tube 1, the purpose of utilization has reached many times, be favorable to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. A multifunctional blood taking needle comprises a blood taking tube with an opening at the top and the bottom, and a needle head is arranged in the blood taking tube, and is characterized in that a fixed sleeve with an opening at the bottom is movably sleeved at the outer side of the blood taking tube, a plugging cover is connected at one side of the bottom of the blood taking tube and matched with the fixed sleeve, a piston is sleeved in the blood taking tube in a sealing and sliding manner, a push rod is fixedly connected at the top of the piston, the top end of the push rod extends into the fixed sleeve and is fixedly connected with the inner wall of the top of the fixed sleeve, the top end of the blood taking tube is fixedly connected with the bottom ends of a plurality of first springs, the top ends of the first springs are movably contacted with the inner wall of the top of the fixed sleeve, a circular plate is arranged in the blood taking tube in a sealing and sliding manner, a clamping mechanism and an automatic ejecting, the bottom of syringe needle extends to the below of heparin tube, the sealed fixed cover of connecting block is established on the syringe needle, set up the first groove that the bottom set up for the opening on one side inner wall of first through-hole, the first locating lever of fixedly connected with on one side inner wall of first groove, establish the kelly in the first groove, kelly slip cap establishes on first locating lever, the draw-in groove has been seted up to one side of connecting block, the one end of kelly extends to in the draw-in groove, a plurality of second springs of fixedly connected with between the one end of kelly and one side inner wall of first groove, the top fixedly connected with L shape pole of kelly, the one end of L shape pole extends to outside the heparin tube, first rectangular hole has been seted up at the top of L shape pole, set up the second rectangular hole that the bottom set up for the opening on one side inner wall of fixed cover, fixed mounting has the trapezoidal piece on the top inner wall of second rectangular hole, establish to the inclined plane on one side of trapezoidal piece, the trapezoidal.

2. The multifunctional blood taking needle of claim 1, wherein the auto-eject mechanism comprises a second groove formed on the inner wall of the other side of the first through hole, the bottom of the second groove is formed into an opening, a T-shaped positioning rod is fixedly connected to the inner wall of the top of the second groove, a moving rod is movably sleeved on the T-shaped positioning rod, an extension spring is fixedly connected between the bottom of the moving rod and the bottom of the inner side of the T-shaped positioning rod, a stop block is fixedly connected to the other side of the connecting block, and the top of the stop block is movably contacted with the bottom of the moving rod.

3. The multifunctional blood taking needle according to claim 2, wherein a square hole is formed at the top of the moving rod, balls are nested on the inner walls of four sides of the square hole, the T-shaped positioning rod is located between the four balls, and the balls are in rolling contact with the outer side of the T-shaped positioning rod.

4. The multifunctional blood collection needle according to claim 1, wherein a rectangular groove is formed at one side of the clamping rod, and the side wall of the rectangular groove is slidably connected with the outer side of the first positioning rod.

5. The multifunctional blood collection needle according to claim 1, wherein the connecting block is fixedly sleeved with a first sealing ring, and the outer side of the first sealing ring is movably contacted with the side wall of the first through hole.

6. A multifunctional blood collection needle according to claim 1, wherein the piston is fixedly sleeved with a second sealing ring, and the outer side of the second sealing ring is movably contacted with the side wall of the blood collection tube.

7. A multifunctional lancet according to claim 1, wherein the sum of the total elastic forces of the plurality of first springs is smaller than the sum of the total elastic forces of the plurality of second springs.

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