CN215839072U - Safety type fixable blood taking needle - Google Patents

Abstract

The utility model relates to a safety type fixable blood taking needle which comprises a needle head and a safety seat connected with the needle head, wherein the safety seat is provided with a fixing piece for fixing the safety seat and skin, the fixing piece is detachably connected with the safety seat, an installation cavity coaxial with the blood taking needle is defined in the safety seat, the safety cavity is arranged in the front-back extending direction, an opening for the needle head to extend out is formed in the front end of the installation cavity, a sliding piece for driving the tip end of the needle head to slide into the installation cavity is arranged in the installation cavity, the needle head is prevented from being exposed and polluted or accidentally stabbing the human body, the potential safety hazard is reduced, and the effects of stable sticking and convenient use are achieved.

Description

Safety type fixable blood taking needle

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a safety type fixable blood taking needle.

Background

Blood sampling is very important in clinical work, a very general work, and two kinds of blood taking needles that use more clinically at present all have some shortcomings, and the blood taking needle that moves straight at first is not safe needle, and during the next blood sampling, because need fix the syringe needle with the hand always, shift easily in operation process, this syringe needle is inconvenient to be used for drawing blood to cultivate moreover. The butterfly wing type blood taking needle is not a safe needle, and compared with a straight needle, the butterfly wing type blood taking needle can be stuck to the butterfly wing by an adhesive tape after successful puncture, is not easy to shift, is convenient for blood extraction culture, but is inconvenient to operate by sticking the adhesive tape every time; after the blood taking needle is used up, the protective sleeve sometimes falls off, and medical workers are accidentally injured by the polluted needle tip, so that blood-borne diseases are spread, and the personal safety of the medical workers is hidden danger; in view of the above disadvantages, there is a need to design a safety and fixable lancet for more convenient and safer clinical operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the safe fixable blood taking needle which is convenient and stable to fix and can reduce the potential safety hazard.

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

a safety fixable blood taking needle comprises a needle head and a safety seat connected with the needle head, wherein the safety seat is provided with a fixing part for fixing the safety seat and skin, the fixing part is detachably connected with the safety seat, an installation cavity coaxial with the blood taking needle is defined in the safety seat, the front and back extension directions of the safety cavity are arranged, an opening for the needle head to extend out is formed in the front end of the installation cavity, and the installation cavity is provided with a sliding part for driving the tip end of the needle head to slide into the installation cavity. By adopting the technical scheme, the fixed blood taking needle is more stable and more convenient, the blood can be conveniently drawn, and the blood taking needle is driven by the sliding part to slide into the mounting cavity after the blood taking is completed, so that the phenomenon that the needle head is exposed to be polluted or the human body is accidentally stabbed is avoided, and the potential safety hazard is reduced.

As the preferred scheme, the front end opening part of the installation cavity is provided with the elastic plug to prevent the sharp end of the needle head from extending out of the opening, and after the sliding part drives the sharp end of the needle head to slide into the safety cavity, the opening is blocked by the elasticity of the elastic plug, so that the sharp end of the needle head is prevented from being exposed to cause accidents under the action of no external force.

Preferably, the rear end of the mounting cavity is provided with a stopping part, and the distance from the stopping part to the proximal needle end of the sliding part is not less than the distance from the proximal needle end of the sliding part to the tip of the needle, so that the needle can be completely retracted into the mounting cavity, and the problem of excessive retraction of the needle is avoided.

As a preferable scheme, the mounting cavity further comprises a slideway communicated with the opening, the slideway is coaxial with the needle head, the side part of the mounting cavity close to the needle head is provided with a notch matched with the sliding part, the notch is communicated with the slideway, so that the sliding part can rotate to the slideway from the notch in the circumferential direction to realize the conversion between the fixed state and the sliding state of the sliding part, the notch is perpendicular to the slideway, and when the blood taking needle is used for taking blood, the sliding part is shifted to the notch to avoid the sliding of the sliding part and influence on the operation; when the blood sampling work is finished, the sliding part is rotated to the slideway in the circumferential direction, and the needle head can be driven to retract into the mounting cavity by sliding backwards at the moment, so that the medical staff is prevented from being exposed and stabbed by accident.

Preferably, the fixing part is a base with adhesive, the protective film with adhesive is torn off before use, the base with adhesive is adhered to skin in a proper manner after the needle is punctured successfully, and the base and the safety seat are directly detached after blood sampling is completed.

Preferably, the elastic plug is a rubber plug.

Preferably, the sliding part is a butterfly wing.

Compared with the prior art, the utility model has the following advantages:

1. the installation cavity, the sliding part and the opening are matched to contain the needle head into the installation cavity, so that the needle head is prevented from being exposed and polluted or puncturing a human body accidentally, the structure is simple, and the cost is low;

2. the detachable fixing piece is arranged at the bottom of the safety seat, the fixing piece is a base with adhesive, the protective film with the adhesive is torn off before use, the base with the adhesive is adhered to the skin in a smooth manner after the needle head is successfully punctured, and the base and the safety seat are directly detached after blood sampling is completed, so that the operation is simple and convenient, and the instability and the complication of adhesive tape adhesion are avoided;

3. an elastic plug is arranged at the opening of the mounting cavity, so that the potential safety hazard caused by the fact that the needle head slides out of the opening without the action of external force is further avoided;

4. the scheme is provided with the notch and the slideway, so that the sliding part has a fixed and sliding state, and the sliding of the sliding part is prevented from influencing the operation of the needle head.

Drawings

Fig. 1 is a schematic structural diagram 1 of the present invention.

Fig. 2 is a schematic structural diagram 2 of the present invention.

FIG. 3 is a schematic top view of the present invention.

Wherein, 1, a needle head; 2. a safety seat; 3. a fixing member; 4. a slider; 5. an elastic plug; 6. a stopper portion; 7. a slideway; 8. and (4) notching.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; the two elements can be mechanically connected, directly connected, indirectly connected through an intermediate medium, and communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 to 3, an embodiment of the present invention provides a safety type fixable blood taking needle, including a needle 1 and a safety seat 2 connected to the needle 1, the safety seat 2 may be a needle protecting sleeve, the safety seat 2 has a fixing element 3 for fixing the safety seat 2 to skin, the fixing element 3 is detachably connected to the safety seat 2, and a mounting cavity coaxial with the blood taking needle is defined in the safety seat 2, the safety cavity is arranged in a front-back extending direction, an opening for the needle 1 to extend out is provided at a front end of the mounting cavity, and the mounting cavity has a sliding element 3 for driving a tip of the needle 1 to slide into the mounting cavity, when the technical scheme is used, a needle cap of the needle 1 is removed first, the fixing element 3 is fixed to the skin after successful puncture, and then the blood taking can be performed, after the blood taking is finished, a main puncture point is pressed by a cotton swab with a left hand, the right hand slides the sliding element 3 backwards to drive the tip of the needle 1 to slide into the mounting cavity from the opening, syringe needle 1 will unable roll-off opening this moment, demolishs safety seat 2 and mounting 3 this moment, accomplishes the blood sampling work, adopts this technical scheme, and fixed blood taking needle is more firm and more convenient, conveniently draws blood, and the blood taking needle is in the completion blood sampling back, slides in to the installation cavity by slider 3 drive, avoids syringe needle 1 to expose by the pollution or accidental stabbing human body, reduces the potential safety hazard.

In some specific embodiments, as shown in fig. 1 and 3, an elastic plug 5 is disposed at the front opening of the mounting cavity to prevent the tip of the needle 1 from extending out of the opening, and when the sliding member 3 drives the tip of the needle 1 to slide into the safety cavity, the opening is sealed by the elasticity of the elastic plug 5, so as to prevent the tip of the needle 1 from being exposed without external force to cause accidents.

In a further embodiment, as shown in fig. 3, the rear end of the mounting cavity has a stop 6, and the distance from the stop 6 to the end of the sliding member 3 near the needle 1 is not less than the distance from the end of the sliding member 3 near the needle 1 to the tip of the needle 1, so that the needle 1 can be fully retracted into the mounting cavity, and the problem of over-retraction of the needle 1 can be avoided.

In other embodiments, as shown in fig. 1 and 3, the mounting cavity further includes a slideway 7 communicated with the opening, the slideway 7 is coaxial with the needle 1, an end portion of the mounting cavity near the needle 1 is provided with a notch 8 matched with the slider 3, the notch 8 is communicated with the slideway 7, so that the slider 3 can rotate circumferentially from the notch 8 to the slideway 7 to realize the conversion between the fixed state and the sliding state of the slider 3, the notch 8 is perpendicular to the slideway 7, and when the blood taking needle is used for taking blood, the slider 3 is shifted to the notch 8 to avoid the slider 3 sliding and affecting the operation; when the blood sampling work is finished, the sliding part 3 is rotated to the slideway 7 in the circumferential direction, and the needle head 1 can be driven to retract into the mounting cavity by sliding backwards at the moment, so that the medical staff is prevented from being exposed and stabbed accidentally; the diameter of the slot 8 is adapted to the diameter of the sliding element 3.

Further, the fixing part 3 is a base with adhesive, the protective film with adhesive is torn off before use, the base with adhesive is adhered to skin after the needle head 1 is punctured successfully, and the base and the safety seat 2 are directly detached after blood sampling is completed.

Further, the elastic plug 5 is a rubber plug.

Further, the sliding member 3 is a wing.

The embodiment provided by the utility model has the following advantages:

1. the installation cavity, the sliding part 3 and the opening are matched to contain the needle head 1 into the installation cavity, so that the needle head 1 is prevented from being exposed and polluted or pricking a human body accidentally, the structure is simple, and the cost is low;

2. the detachable fixing part 3 is arranged at the bottom of the safety seat 2, the fixing part 3 is a base with adhesive, a protective film with the adhesive is torn off before use, the base with the adhesive is adhered to the skin in a proper way after the needle head 1 is successfully punctured, and the base and the safety seat 2 are directly detached after blood sampling is finished, so that the operation is simple and convenient, and the instability and the complication of adhesive tape adhesion are avoided;

3. an elastic plug 5 is arranged at the opening of the mounting cavity, so that the potential safety hazard caused by the fact that the needle head 1 slides out of the opening without the action of external force is further avoided;

4. the scheme is provided with the notch 8 and the slideway 7, so that the sliding part 3 has a fixed and sliding state, and the sliding of the sliding part 3 is prevented from influencing the operation of the needle head 1.

It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the utility model are possible. Any simple modification, equivalent change and modification of the above embodiments according to the spirit of the present invention should be considered to be within the protection scope of the present invention.

Claims (7)

1. The utility model provides a but safety type fixed blood taking needle which characterized in that: including syringe needle (1) and safe seat (2) of being connected with syringe needle (1), safe seat (2) have make safe seat (2) and fixed mounting (3) of skin, and this mounting (3) can be dismantled with safe seat (2) and be connected, just inject one in safe seat (2) and take a blood needle coaxial installation cavity, the extending direction arranges around the safe cavity, and the installation cavity front end is equipped with the opening that supplies the syringe needle to stretch out, and the installation cavity has a slider (4) that drives the syringe needle point-end and slide to the installation cavity.

2. A safety securable lancet according to claim 1, characterised in that the opening at the forward end of the mounting cavity is provided with a resilient plug (5) to prevent the tip of the needle from protruding through the opening.

3. A safety securable lancet according to claim 1, characterised in that the rear end of the mounting cavity has a stop (6), the distance from the stop (6) to the proximal needle (1) end of the slider (4) being no less than the distance from the proximal needle (1) end of the slider (4) to the tip of the needle (1).

4. The safety type fixable blood taking needle according to claim 1, wherein the mounting cavity further comprises a slideway (7) communicated with the opening, the slideway (7) is coaxial with the needle (1), the side part of the mounting cavity near the needle end is provided with a slot (8) matched with the sliding piece (4), the slot (8) is communicated with the slideway (7), so that the sliding piece (4) can rotate from the slot (8) to the slideway (7) in the circumferential direction to realize the conversion between the fixed state and the sliding state of the sliding piece (4).

5. A safety securable lancet according to claim 1, characterised in that the mounting (3) is a base with adhesive.

6. A safety securable lancet according to claim 2, in which the said resilient plug (5) is a rubber plug.

7. A safety securable lancet according to claim 1, in which the slider (4) is a wing.

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