CN213465028U

CN213465028U - Safety arteriovenous blood sampling needle

Info

Publication number: CN213465028U
Application number: CN202021098945.9U
Authority: CN
Inventors: 陈柳
Original assignee: First Affiliated Hospital of Guangzhou Medical University
Current assignee: First Affiliated Hospital of Guangzhou Medical University
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-06-18
Anticipated expiration: 2030-06-15

Abstract

The utility model provides a safe arterial and venous blood collection needle, which belongs to the technical field of medical equipment, and comprises a venous connector, a venous tube, an arterial connector, an arterial tube, a main tube, a hand-held part, a button, a hidden sheath, a connecting tube and a needle, and one end of the venous tube It is connected with the venous joint, and the other end is communicated with the lumen of the arterial tube and is connected to the main tube. The arterial joint is installed on the end of the arterial tube away from the main tube. The hand-held part is wrapped and arranged on the outer side of the connecting pipe in turn, and the hidden sheath is arranged between the hand-held part and the connecting pipe, and the button passes through the outer wall of the hand-held part to contact the hidden sheath; The utility model can not only realize the simultaneous collection of arterial blood and venous blood, but also provides double protection of an external sheath and a hidden sheath at the needle, which effectively avoids the accidental stabbing of nurses when collecting blood, and improves the safety of using the blood-collecting needle. sex.

Description

Safety arteriovenous blood sampling needle

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a safe type sound arteries and veins blood sampling syringe needle.

Background

At present, a blood sampling needle head can only take blood once, when arterial blood needs to be collected after venous blood is collected, the needle is pricked again to collect the arterial blood, or the head end of the blood sampling needle is separated to be connected with a blood sampling arterial tube, although the operation does not need to prick the needle for many times, the blood is easy to leak and is polluted; when blood sampling is finished, the blood sampling needle head can not retract or be shielded, and the needle head is easy to injure people by mistake.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a safety arteriovenous blood sampling needle, which can solve the above problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this: the safety arteriovenous blood sampling needle comprises a venous connector, a venous tube, an arterial connector, an arterial tube, a main tube, a handheld part, a button, a hidden sheath, a connecting tube and a needle head, wherein one end of the venous tube is connected with the venous connector, the other end of the venous tube is communicated with a tube cavity of the arterial tube and is connected to the main tube in a combined manner, the arterial connector is arranged at one end of the arterial tube, which is far away from the main tube, one end of the main tube, which is far away from the venous tube, is sequentially connected with the connecting tube and the needle head, the hidden sheath and the handheld part are sequentially wrapped and arranged on the outer side of the connecting tube, the hidden sheath is arranged between the handheld part and the connecting tube, and the button passes through the outer; an external sheath is detachably arranged on the outer side of the needle head.

Further, the handheld portion comprises a first limiting block, a second limiting block, a side wing, a sleeve and a placing hole, the side wing is installed on the outer side wall of the sleeve, the first limiting block and the second limiting block are arranged inside the sleeve, the second limiting block is arranged at one end close to the side wing, and the placing hole is formed in the side wall of the sleeve and in a position corresponding to the button.

Furthermore, the hidden sheath comprises a limiting tube, compression springs, a touch switch and a sheath body, the limiting tube is a tube body consisting of an inner tube and an outer tube, the compression springs are uniformly arranged in a cavity consisting of the inner tube and the outer tube, the touch switch is arranged on the side wall of the sheath body, and the end surface of the sheath body close to one side of the touch switch is connected with the compression springs; the bottom of the touch switch is provided with a spring, so that the touch switch can move up and down.

Further, the artery joint is a threaded joint; an adjusting switch is arranged on the arterial tube.

Further, the venous tube, the arterial tube and the main tube are all medical hoses.

Further, the distance between the first limiting block and the second limiting block is larger than the horizontal length or the diameter of the touch switch.

Compared with the prior art, safe type artery and vein blood sampling syringe needle have following advantage:

(1) the utility model is provided with the arterial blood connector and the venous blood connector, when the blood sampling is needed for a plurality of times, the blood sampling can be completed only by pricking once, thereby effectively reducing the pain of the patient caused by pricking for a plurality of times;

(2) the utility model separates the joint for artery blood sampling and the joint for vein blood sampling, thus effectively avoiding blood leakage pollution caused by separating the head ends of the blood sampling needles when the same joint is used for blood sampling;

(3) the utility model discloses a syringe needle department is provided with external sheath and hides sheath duplicate protection, takes place the stab carelessly when effectively having avoided nurse's blood sampling, has improved the security that blood sampling syringe needle used.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a blood collection needle according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of the structure of part A of FIG. 1;

fig. 4 is a schematic structural diagram of a handheld portion according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a hidden sheath according to an embodiment of the present invention.

Description of reference numerals:

1. a venous connector; 2. an intravenous tube; 3. an arterial junction; 4. an arterial vessel; 5. a main pipe; 6. a hand-held portion; 7. a button; 8. hiding the sheath; 9. a connecting pipe; 10. a needle head; 11. an external sheath; 12. a first stopper; 13. a second limiting block; 14. a side wing; 15. a sleeve; 16. placing holes; 17. a limiting pipe; 18. a compression spring; 19. a touch switch; 20. a sheath body; 21. an inner tube; 22. an outer tube; 23. and adjusting the switch.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-5, the utility model relates to a safety arteriovenous blood sampling needle, which comprises a venous connector 1, a venous tube 2, an arterial connector 3, an arterial tube 4, a main tube 5, a hand-held part 6, a button 7, a hidden sheath 8, a connecting tube 9 and a needle 10, wherein one end of the venous tube 2 is connected with the venous connector 1, the other end is connected with the lumen of the arterial tube 4 and is combined with the main tube 5, the arterial connector 3 is arranged at one end of the arterial tube 4 far away from the main tube 5, the arterial connector 3 for arterial blood sampling is separated from the venous connector 1 for venous blood sampling, which not only effectively avoids blood leakage pollution caused by separating the head end of the blood sampling needle when the same connector is used for blood sampling, but also avoids multiple needle pricks simultaneously, thereby effectively reducing pain of patients for pricking many times, one end of the main tube 5 far away from the venous tube 2 is connected with the connecting tube 9 and the needle 10 in, the hidden sheath 8 and the handheld part 6 are sequentially wrapped and arranged on the outer side of the connecting pipe 9, the hidden sheath 8 is arranged between the handheld part 6 and the connecting pipe 9, and the button 7 penetrates through the outer wall of the handheld part 6 to be in contact with the hidden sheath 8; the external sheath 11 that is provided with can be dismantled in the syringe needle 10 outside, external sheath 11 and the duplicate protection of hiding sheath 8 take place to stab carelessly when effectively having avoided the nurse blood sampling, have improved the security that blood sampling syringe needle used.

The handheld portion 6 comprises a first limiting block 12, a second limiting block 13, a side wing 14, a sleeve 15 and a placing hole 16, wherein the side wing 14 is installed on the outer side wall of the sleeve 15, the first limiting block 12 and the second limiting block 13 are both arranged inside the sleeve 15, the second limiting block 13 is arranged at one end close to the side wing 14, and the placing hole 16 is arranged on the side wall of the sleeve 15 corresponding to the button 7.

The hidden sheath 8 comprises a limiting tube 17, a compression spring 18, a touch switch 19 and a sheath body 20, wherein the limiting tube 17 is a tube body consisting of an inner tube 21 and an outer tube 22, the compression springs 18 are uniformly arranged in a cavity consisting of the inner tube 21 and the outer tube 22, the touch switch 19 is arranged on the side wall of the sheath body 20, and the end surface of the sheath body 20 close to one side of the touch switch 19 is connected with the compression spring 18; a spring is installed at the bottom of the tact switch 19 so that the tact switch 19 can move up and down. The compression springs 18 are compressed at the initial state, when the trigger switch 19 is triggered by the button 7, the compression springs 18 release the compression force, and the sheath body 20 slides to the outside of the needle 10 under the action of the force to wrap the needle.

The artery joint 3 is a threaded joint; be provided with regulating switch 23 on arterial tube 4, when not carrying out arterial blood collection, regulating switch 23 is in the off-state, after having connected the artery blood sampling vessel, will regulating switch 23 opens and can carry out the blood sampling, and the arterial blood sampling pipe is prior art.

Venous pipe 2, arterial duct 4 and be responsible for 5 and be the medical hose, can batch and accomodate, effectively save space.

The distance between the first limiting block 12 and the second limiting block 13 is greater than the horizontal length or diameter of the touch switch 19, so that the touch switch 19 can be confined between the first limiting block 12 and the second limiting block 13, the hidden sheath 8 cannot retract again after being ejected, and the needle 10 is effectively prevented from stabbing people.

In the actual working process, the flank 14 part of the blood sampling needle head is held by hand, the external sheath 11 is removed, the needle head 10 is pushed into the blood vessel of a patient, the artery blood sampling tube is connected with the artery connector 3, then the adjusting switch 23 is opened for blood sampling, when venous blood needs to be collected, the existing venous blood sampling tube is connected with the vein connector 1 for blood sampling, after the blood sampling is finished, the needle head 10 is pulled out, the button 7 is pressed, the touch switch 19 is pressed by the button 7, the touch switch 19 moves downwards so that the first limiting block 12 does not limit the touch switch 19, the compression spring 18 releases the compression force, the sheath body 20 slides to the outer side of the needle head 10 under the action force of the compression spring 18 and wraps the needle head, when the touch switch 19 moves forwards to a position between the first limiting block 12 and the second limiting block 13, the touch switch 19 is limited by the first limiting block 12 and the second limiting block 13 at the same time, the sheath body 20 is ensured not to slide out of the handheld part, effectively protecting the needle 10 and preventing the needle 10 from stabbing others.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. safety type arteriovenous blood collection needle, it is characterized in that: comprise venous joint (1), venous tube (2), arterial joint (3), arterial tube (4), main pipe (5), hand-held part (6), button (7), a hidden sheath (8), a connecting tube (9) and a needle (10), one end of the venous tube (2) is connected to the venous joint (1), and the other end is connected to the arterial tube (4) The lumen of the arterial tube is communicated and is combined and connected to the main pipe (5), the arterial joint (3) is installed at the end of the arterial pipe (4) away from the main pipe (5), and the main pipe (5) is far away from the main pipe (5). One end of the venous tube (2) is sequentially connected with the connecting tube (9) and the needle (10), and the hidden sheath (8) and the hand-held part (6) are sequentially wrapped and arranged on the side of the connecting tube (9). outside, and the hidden sheath (8) is arranged between the hand-held part (6) and the connecting pipe (9), the button (7) passes through the outer wall of the hand-held part (6) and the hidden The sheath (8) is in contact; the outer side of the needle (10) is detachably provided with an external sheath (11).

2. The safety type arteriovenous blood collection needle according to claim 1, characterized in that: the hand-held part (6) comprises a first limit block (12), a second limit block (13), and a flank (14) , a sleeve (15) and a placement hole (16), the side wings (14) are mounted on the outer side wall of the sleeve (15), the first limit block (12) and the second limit block ( 13) Both are arranged inside the sleeve (15), while the second limiting block (13) is arranged at one end close to the side wing (14), and the placement hole (16) is arranged in the sleeve The side wall of the cylinder (15) corresponds to the position of the button (7).

3. The safety type arteriovenous blood collection needle according to claim 2, wherein the hidden sheath (8) comprises a limit tube (17), a compression spring (18), a trigger switch (19) and a sheath The body (20), the limiting tube (17) is a tube body composed of an inner tube (21) and an outer tube (22), and a plurality of the compression springs (18) are evenly arranged on the inner tube (21) In the cavity formed with the outer tube (22), the touch switch (19) is mounted on the side wall of the sheath body (20), and the sheath body (20) is close to the touch switch (19) The end face of one side is connected with the compression spring (18); a spring is installed at the bottom of the touch switch (19), so that the touch switch (19) can move up and down.

4. The safety type arterial and venous blood collection needle according to claim 1, characterized in that: the arterial joint (3) is a threaded joint; and an adjustment switch (23) is provided on the arterial tube (4).

5. The safety type arteriovenous blood collection needle according to claim 1, wherein the venous tube (2), the arterial tube (4) and the main tube (5) are all medical hoses.

6. The safety type arteriovenous blood collection needle according to claim 3, characterized in that: the distance between the first limit block (12) and the second limit block (13) is greater than the touch switch (19) ) horizontal length or diameter.