阅读说明：本技术 一次性使用采血针 (Disposable blood taking needle ) 是由 曾琪雅 董湘凌 于 2019-10-25 设计创作，主要内容包括：本发明涉及医疗器械技术领域,公开了一种一次性使用采血针,包括针筒和设置在针筒内的调节装置,所述调节装置上安装有针头,所述针头通过调节装置调节针头的伸出和收回；所述针筒的后端设有凹陷部,所述凹陷部内设有消毒棉片,所述针筒上设有用于密封凹陷部的密封膜,所述针筒的前端设有与针头的针尖相对的针孔,所述针筒的前端还设有用于封闭针孔的端盖；本发明提供的一种一次性使用采血针,使用便捷,不必另外携带酒精或酒精棉片,缩短操作时间,提高工作效率,且能够避免酒精瓶碰倒、用力不足未一次性穿刺手茧皮肤等造成浪费,可以有效防止针刺伤,符合院感要求。(The invention relates to the technical field of medical instruments and discloses a disposable blood taking needle which comprises a needle cylinder and an adjusting device arranged in the needle cylinder, wherein a needle head is arranged on the adjusting device, and the needle head is used for adjusting the extension and retraction of the needle head through the adjusting device; the rear end of the needle cylinder is provided with a concave part, a disinfection cotton sheet is arranged in the concave part, a sealing film used for sealing the concave part is arranged on the needle cylinder, the front end of the needle cylinder is provided with a needle hole opposite to the needle point of the needle head, and the front end of the needle cylinder is also provided with an end cover used for sealing the needle hole; the disposable blood taking needle provided by the invention is convenient and fast to use, does not need to carry alcohol or alcohol cotton sheets additionally, shortens the operation time, improves the working efficiency, can avoid waste caused by that an alcohol bottle is knocked down, the hand cocoon skin is not punctured once due to insufficient force, and the like, can effectively prevent needle stick injuries, and meets the requirement of hospital feeling.)

1. A disposable blood taking needle is characterized in that: the needle adjusting device comprises a needle cylinder and an adjusting device arranged in the needle cylinder, wherein a needle head is arranged on the adjusting device, and the needle head is used for adjusting the extension and retraction of the needle head through the adjusting device; the rear end of cylinder is equipped with the depressed part, be equipped with the aseptic cotton piece in the depressed part, be equipped with the seal membrane that is used for sealed depressed part on the cylinder, the front end of cylinder is equipped with the pinhole relative with the needle point of syringe needle, the front end of cylinder still is equipped with the end cover that is used for sealing the pinhole.

2. A single use blood lancet according to claim 1, wherein: a strip-shaped groove is formed in the side wall of the needle cylinder along the length direction of the needle cylinder, a sealing film used for sealing the strip-shaped groove is arranged on the needle cylinder, and a strip-shaped opening communicated with the interior of the needle cylinder is formed in the strip-shaped groove along the length direction of the strip-shaped groove; adjusting device includes positioning seat, locating piece and slide rail, positioning seat and slide rail all set up in the cylinder along the length direction of cylinder, the slide rail is located the opposite side of positioning seat, be equipped with two positioning groove on the positioning seat, the positioning groove who is close to the cylinder rear end is positioning groove one, and the positioning groove who is close to the front end of cylinder is positioning groove two, and the locating piece is located positioning groove one under the initial condition, the locating piece is equipped with the spliced pole towards bar open-ended one end, the spliced pole stretches out bar open-ended one end is equipped with the adjusting button, the one end towards the slide rail on the locating piece is equipped with the spring, the tip and the slide rail of spring offset, the syringe needle is installed on the locating piece.

3. A single use blood lancet according to claim 2, wherein: the adjusting button is positioned in the strip-shaped groove.

4. A single use blood lancet according to claim 2, wherein: the length of the connecting column extending out of the strip-shaped opening is greater than or equal to the groove depth of the positioning groove.

5. A single use blood lancet according to claim 2, wherein: the radius of the pinhole is greater than or equal to the groove depth of the positioning groove.

6. A single use blood lancet according to claim 2, wherein: depressed part and bar groove intercommunication, the seal membrane realizes the whole sealed to depressed part and bar groove.

7. A single use blood lancet according to claim 2, wherein: the bar-shaped groove is a U-shaped groove, the rear end of the U-shaped groove is communicated with the concave part, and the front end of the U-shaped groove is a closed end.

8. A single use blood lancet according to claim 2, wherein: the length of the U-shaped groove is larger than that of the strip-shaped opening.

9. A single use lancet according to claim 7 or 8, wherein: the U-shaped groove and the needle cylinder are of an integrated structure.

10. A single use blood lancet according to claim 1, wherein: the depressed part is arc depressed part.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a disposable blood taking needle.

Background

The existing clinical or home-used blood taking needles (mostly produced by Schleian) have a springback effect, when in blood taking, the blood can be easily taken only by pressing the fingers of a measured person, the depth of the blood taking needle is controlled by the pressing force, the needle rebounds after being picked, the risk of occupational exposure can be reduced, but the depth is difficult to accurately control, if the cocoon of the finger of the measured person is thick, two or more blood taking needles can be used, and waste is caused; simultaneously, because alcohol is difficult to carry, the time required by dipping and taking, and alcohol cotton sheets prepared by the blood taking needle are difficult to store and carry in equal proportion with the blood taking needle clinically, the situations of low blood sugar measuring speed, forgetting to carry the alcohol and low working efficiency of medical workers caused by the fact that an alcohol bottle is knocked over exist in the blood taking disinfection process.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a disposable blood taking needle which is convenient and fast to use, does not need to carry alcohol or alcohol cotton sheets additionally, shortens the operation time, improves the working efficiency, can avoid waste caused by the fact that an alcohol bottle is knocked down, the strength is insufficient, hand cocoon skin is not punctured at one time, and the like, can effectively prevent puncture wound, and meets the requirement of hospital feeling.

The technical scheme adopted by the invention is as follows:

a disposable blood taking needle comprises a needle cylinder and an adjusting device arranged in the needle cylinder, wherein a needle head is arranged on the adjusting device, and the needle head is used for adjusting the extension and retraction of the needle head through the adjusting device; the rear end of cylinder is equipped with the depressed part, be equipped with the aseptic cotton piece in the depressed part, it is specific, the aseptic cotton piece is the alcohol cotton piece, be equipped with the seal membrane that is used for sealing the depressed part on the cylinder, the front end of cylinder is equipped with the pinhole relative with the needle point of syringe needle, the front end of cylinder still is equipped with the end cover that is used for sealing the pinhole.

The needle head is arranged on the adjusting device, so that the adjusting device can adjust the extension and retraction of the needle head, the needle head is conveniently retracted after being picked, and the occupational exposure risk can be reduced; because the rear end at the cylinder is equipped with the depressed part, is equipped with the alcohol cotton piece in the depressed part, realizes the sealed to the alcohol cotton piece through the seal membrane, and the end cover realizes the sealed to the pinhole, guarantees the aseptic requirement of this device.

During the use, only need tear the seal membrane, then can directly disinfect to measurand's finger through the alcohol cotton piece that sets up in the depressed part of cylinder rear end, this technical scheme directly sets up the alcohol cotton piece in the rear end of cylinder, and the structural design of integration facilitates the use, and it is troublesome to have solved traditional blood sampling in-process and need carry alcohol in addition and dip in alcohol, easily appears bumping down the problem of alcohol bottle.

In conclusion, the blood taking needle is convenient to use, alcohol or alcohol cotton sheets do not need to be carried additionally, the operation time is shortened, the working efficiency is improved, the waste caused by the fact that an alcohol bottle is knocked over, the strength is insufficient, hand cocoon skin is not punctured once, and the like can be avoided, the puncture wound can be effectively prevented, and the hospital feeling requirement is met.

Further, a strip-shaped groove is formed in the side wall of the needle cylinder along the length direction of the needle cylinder, a sealing film used for sealing the strip-shaped groove is arranged on the needle cylinder, and a strip-shaped opening communicated with the interior of the needle cylinder is formed in the strip-shaped groove along the length direction of the strip-shaped groove; adjusting device includes positioning seat, locating piece and slide rail, positioning seat and slide rail all set up in the cylinder along the length direction of cylinder, the slide rail is located the opposite side of positioning seat, be equipped with two positioning groove on the positioning seat, the positioning groove who is close to the cylinder rear end is positioning groove one, and the positioning groove who is close to the front end of cylinder is positioning groove two, and the locating piece is located positioning groove one under the initial condition, the locating piece is equipped with the spliced pole towards bar open-ended one end, the spliced pole stretches out bar open-ended one end is equipped with the adjusting button, the one end towards the slide rail on the locating piece is equipped with the spring, the tip and the slide rail of spring offset, the syringe needle is installed on the locating piece.

The strip-shaped groove is matched with the design of the adjusting device, the positioning block is positioned in the first positioning groove in an initial state, before blood collection, a sealing film for sealing the strip-shaped groove needs to be torn off, then the adjusting button is pressed, the positioning block is separated from the first positioning groove, the spring is in a compressed state, then the adjusting button is pushed forward, the positioning block reaches the second positioning groove, the positioning block is pushed into the second positioning groove by the resilience of the spring, the needle point is pushed out, and the position of the needle point can be locked; after the blood sampling is finished, the adjusting button is pushed backwards, the positioning block is pushed into the first positioning groove by the rebound force of the spring when the positioning block reaches the first positioning groove, the needle head is retracted, the needle is prevented from being injured by the needle, and the needle is discarded.

This adjusting device's design, the realization that only needs to press and promote just can be convenient is to stretching out and withdrawing of syringe needle, and convenient operation is swift, and the seal membrane can guarantee the sealed to the bar groove, guarantees the aseptic design requirement of product, during the use, can operate adjustment button after directly tearing the seal membrane that is used for sealing the bar groove, realizes the operation to the syringe needle, convenient to use.

Further, in order to guarantee that the adjusting button does not exceed the bar-shaped groove, the setting of the sealing film is convenient, and the adjusting button is located the bar-shaped groove.

Furthermore, in order to ensure that the positioning block can be smoothly separated from the first positioning groove or the second positioning groove in the process of pressing the adjusting button, the length of the connecting column extending out of the strip-shaped opening is greater than or equal to the groove depth of the positioning groove.

Furthermore, in order to guarantee the in-process of button adjusting knob, the pinhole can provide the space of dodging for the syringe needle at skew center, realizes pushing out smoothly of syringe needle, the radius of pinhole is more than or equal to positioning groove's groove depth.

Further, carry out the integral seal to depressed part and bar groove for the convenience, depressed part and bar groove intercommunication, the seal membrane realizes the integral seal to depressed part and bar groove.

Depressed part and bar groove intercommunication are convenient for to the whole of depressed part and bar groove sealed, during the use, only need once tear the seal membrane can, guarantee sealed effect, also can improve the convenience of using when satisfying the aseptic design of product.

Further, for the aseptic sealed of better realization to the product, the bar groove is the U-shaped groove, the rear end and the depressed part intercommunication in U-shaped groove, the front end in U-shaped groove is the blind end.

Further, in order to effectively realize the operation of the adjusting knob, the length of the U-shaped groove is larger than that of the strip-shaped opening.

Further, in order to ensure the structural integrity of the product, the U-shaped groove and the needle cylinder are of an integrated structure.

Further, for better realization with the alcohol cotton piece of depressed part and the better matching of the radian of finger, the convenient disinfection operation to the finger, the depressed part is arc depressed part.

The invention has the beneficial effects that: the needle head is arranged on the adjusting device, so that the adjusting device can adjust the extension and retraction of the needle head, the needle head is conveniently retracted after being picked, and the occupational exposure risk can be reduced; because the rear end at the cylinder is equipped with the depressed part, is equipped with the alcohol cotton piece in the depressed part, realizes the sealed to the alcohol cotton piece through the seal membrane, and the end cover realizes the sealed to the pinhole, guarantees the aseptic requirement of this device.

During the use, only need tear the seal membrane, then can directly disinfect to measurand's finger through the alcohol cotton piece that sets up in the depressed part of cylinder rear end, this technical scheme directly sets up the alcohol cotton piece in the rear end of cylinder, and the structural design of integration facilitates the use, and it is troublesome to have solved traditional blood sampling in-process and need carry alcohol in addition and dip in alcohol, easily appears bumping down the problem of alcohol bottle.

In conclusion, the blood taking needle is convenient to use, alcohol or alcohol cotton sheets do not need to be carried additionally, the operation time is shortened, the working efficiency is improved, the waste caused by the fact that an alcohol bottle is knocked over, the strength is insufficient, hand cocoon skin is not punctured once, and the like can be avoided, the puncture wound can be effectively prevented, and the hospital feeling requirement is met.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view of the present invention in an unused state;

FIG. 4 is a sectional view showing a process of operating the knob in the present invention;

fig. 5 is a cross-sectional view of the needle of the present invention in a fully extended state.

In the figure: a needle cylinder 1; a needle head 2; a recessed portion 3; alcohol cotton piece 4; a sealing film 5; a pinhole 6; an end cap 7; a strip-shaped groove 8; a closed end 8.1; a strip-shaped opening 9; a positioning seat 10; a positioning block 11; a slide rail 12; a first positioning groove 13; a second positioning groove 14; a connecting column 15; an adjusting knob 16; and a spring 17.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

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

The invention is further described with reference to the following figures and specific embodiments.