CN213608253U - Needle head of anti-acupuncture drug dissolving needle and drug dissolving needle - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to prevent acupuncture needle and needle of dissolving medicine. The needle head comprises a pintle and a needle stem; the needle head is provided with an outer sheath, the base part of the outer sheath is sleeved on the lower part of the pintle, the top of the outer sheath is provided with a needle outlet, the outer sheath is internally provided with a recovery structure, the main body of the recovery structure is sleeved outside the needle stalk, and the base part of the recovery structure is sleeved on the upper part of the pintle. The medicine dissolving needle can avoid needle stick injury caused by misoperation of a user.

Description

Needle head of anti-acupuncture drug dissolving needle and drug dissolving needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a needle-punching-prevention drug dissolving needle head and a drug dissolving needle.

Background

Needle stick injury refers to an accidental injury caused by medical instruments such as needles, knives, scissors, etc., resulting in a deep skin lesion sufficient to cause bleeding in the injured person. In medical care work, it often happens.

At present, many medicines are in powder form, and need to be prepared for use in clinical application, and when in use, the medicines in powder form need to be dissolved, diluted or mixed firstly, and then the prepared medicine is injected into muscle or added into a dilution bottle for intravenous injection. Conventional practice is typically accomplished using a syringe with a needle. In use, needle stick injuries are also frequent. The syringe needle with the structure is very sharp, after the medical staff finishes the dispensing operation, the pulled needle cap is installed with the needle head again in a matched mode to be used for cap returning operation, and an operator is difficult to accurately control the relative position between the needle head and the needle cap in the cap returning process, is difficult to accurately and efficiently return the cap and is easy to stab the skin of the operator.

In recent years, the incidence of infectious diseases transmitted by blood, such as AIDS, various hepatitis and the like, is on the rise, the potential threats of blood infection and virus infection caused by occupational exposure caused by needle puncture are becoming serious, and the potential threats to the physical and psychological health of medical care workers are great.

Therefore, the conventional injector is used for dissolving medicine at present, so that the physical and mental health threat of medical care personnel to the physical and mental health is brought, and the medical care work is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that the acupuncture wound that exists among the present medical care work takes place easily, provide a prevent acupuncture needle of dissolving medicine.

The utility model provides a technical scheme that its technical problem adopted is: a needle head of a needle for preventing acupuncture and dissolving medicine comprises a pintle and a needle stalk; the needle head is provided with an outer sheath, the base part of the outer sheath is sleeved on the lower part of the pintle, the top of the outer sheath is provided with a needle outlet, the outer sheath is internally provided with a recovery structure, the main body of the recovery structure is sleeved outside the needle stalk, and the base part of the recovery structure is sleeved on the upper part of the pintle.

The scheme is that the outer sheath is arranged on the needle head, the needle stalk and the needle point of the needle head are enclosed by the outer sheath and isolated from the outside, and the arrangement can avoid the puncture of the needle point of the needle head to a user. Even when the user uses the needle, the user only needs to align the needle point with the needle outlet hole to apply force, and then the outer sheath is deformed, and the needle point is exposed outside the outer sheath along the needle outlet hole. After the needle is used, the outer sheath with the recovery structure recovers to the original shape and encloses the needle stalk, so that the needle tip is prevented from stabbing a user. The resilient structure may be a return spring.

Preferably, the needle outlet aperture is eccentrically located at the top of the outer sheath.

The eccentric arrangement structure is used for ensuring that the needle tip can be exposed outside the outer sheath only when the needle tip is manually aligned with the needle outlet hole, and under the normal condition, the needle tip is not easily aligned with the needle outlet hole, so that even if external force is applied to the outer sheath due to touch and the like, the needle tip of the needle stem cannot be exposed outside the outer sheath, and the occurrence of needle stick injury events caused by misoperation can be prevented.

Preferably, the outer sheath is provided with a guide tube at the needle outlet, the upper part of the guide tube is a closed tube, the lower part of the guide tube is an open half tube, the length of the closed tube is matched with the needle stem, and the open side of the half tube is opposite to the needle stem.

The guide tube can be more convenient for a user to align the needle point of the needle stem with the needle outlet hole.

Preferably, an outer protective layer is arranged on the inner top of the outer sheath. The outer sheath is used for blocking the needle point and preventing the needle point from puncturing the outer sheath.

Preferably, the needle stalk is of an arc-shaped structure. The needle stalk of arc structure needs more accurate application of force just can make the needle point expose outside the oversheath, has further reduced the emergence that the needle pricked because maloperation causes.

Preferably, the guide tube is located inside the needle stem. Because the needle stalk structure of arc structure for the external world that receives outside the oversheath touches more, further increases the degree of difficulty of needle stalk and stand pipe butt joint when setting up the stand pipe in the inboard of needle stalk, has further reduced the emergence that the needle prick that the maloperation caused.

Preferably, the outer protective layer is provided with an elastic structural layer. The outer protective layer of the elastic structure can avoid the damage of the rigid structure to the needle point and avoid passivating the needle point.

Preferably, the guide pipe and the outer protective layer are of an integral structure. This may protect the outer sheath in a unitary construction.

A puncture-proof drug dissolving needle, which comprises a needle tube and a needle head matched with the needle tube, wherein the needle head adopts the needle head of any one of the preceding claims.

The utility model has the advantages that: when the needle head is not actually operated, the injury of the needle point to medical care personnel caused by touch is avoided, the provided outer sheath can form a certain protection effect on the needle head, and the potential harm of the needle point of the needle head to a user is eliminated; meanwhile, the outer sheath does not need to be removed when in use, and the protection to a user can still be achieved when the needle head is repeatedly used for many times.

Drawings

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

Fig. 2 shows a schematic view of a part of the structure of the present invention.

Fig. 3 is a schematic view of a partial structure of the present invention after further improvement.

Fig. 4 shows another structure of the present invention.

Fig. 5 is a schematic structural diagram of a use state of the present invention.

In the figure: the needle comprises a needle bolt 1, a needle stem 2, an outer sheath 3, a needle outlet 4, a recovery structure 5, a guide tube 6 and an outer sheath 7.

Detailed Description

Further refinements will now be made on the basis of the representative embodiment shown in the figures.

Specifically, referring to fig. 1-4, fig. 1 and 2 show a needle of a needle for preventing needle stick dissolution, the needle comprises a pintle 1 and a needle stem 2, the needle stem 2 is arranged on the pintle 1, and the pintle 1 is used for being connected and fixed with a needle tube.

The scheme of figure 1 is characterized in that the pillow is provided with an outer sheath 3 structure, and the base part of the outer sheath 3 is sleeved at the lower part of the pintle 1. The top of the outer sheath 3 is provided with a needle outlet hole 4, and the needle outlet hole 4 is used for the needle point of the needle stem 2 to pierce out from the hole for operation. A recovery structure 5 is arranged in the outer sheath 3, the main body of the recovery structure 5 is sleeved outside the needle stem 2, and the base part of the recovery structure 5 is sleeved on the upper part of the pintle 1. As shown in fig. 1, the restoring structure 5 is a restoring spring. Or the outer sheath 3 can be arranged to be a simple elastic structure, so that the outer sheath 3 deforms under external force, and the outer sheath restores to the original shape after the external force is eliminated.

In order to avoid the needle point being easily exposed from the needle outlet hole 4, the needle outlet hole 4 is particularly arranged eccentrically on the top of the outer sheath 3, so that the difficulty of aligning the needle point with the needle outlet hole 4 is increased, and the probability of randomly aligning the needle point with the needle outlet hole 4 is reduced.

In order to reduce the difficulty of aligning the needle point and the needle outlet 4 by a user when in use, a guide tube 6 is arranged at the needle outlet 4 in the outer sheath 3, the upper part of the guide tube 6 is a closed tube, the lower part of the guide tube is an open half tube, and the length of the closed tube is matched with the needle stem 2, so that the needle point can be aligned with the guide tube 6 when in use, and the needle stem can be exposed outside the outer sheath along the guide tube 6. This is not the optimal solution, the optimal solution being to place the open side of the half-tube opposite the needle stem 2, which further increases the difficulty of aligning the needle stem randomly with the guide tube 6.

In order to avoid reducing the adverse effect of the outer sheath on the needle point, the outer sheath 7 is arranged at the inner top of the outer sheath 3, and the outer sheath 7 is of an elastic structure, so that when the needle point pierces the outer sheath 7, a buffering process is provided, and the needle point is not easily passivated.

As shown in fig. 4, the needle stem 2 is arranged in an arc structure, so that the probability of puncture caused by misoperation of the top of the needle tip on the outer sheath is further reduced. The guide tube 6 is not shown in fig. 4, and in the embodiment of the needle stem 2 with the arc-shaped structure, after the guide tube 6 is arranged, the guide tube 6 is positioned at the inner side of the needle stem 2, and of course, the needle outlet 4 is eccentric to the arc-shaped inner side of the needle stem 2.

In the above structure, the guide tube 6 and the outer sheath 7 are integrated, so that the guide tube and the outer sheath can be conveniently placed in the outer sheath 3 together.

When in use, the outer sheath is extruded and deformed, the needle point is exposed outside the outer sheath 3, and the needle stem 2 is used for sucking the liquid medicine.

The utility model provides a prevent acupuncture needle of dissolving medicine, includes needle tubing and the syringe needle that cooperates with the needle tubing, the syringe needle adopts foretell syringe needle.

For purposes of explanation, specific nomenclature is used in the above description to provide a thorough understanding of the described embodiments. It will be apparent, however, to one skilled in the art that these specific details are not required in order to practice the embodiments described above. Thus, the foregoing descriptions of specific embodiments described herein are presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. It will be apparent to those skilled in the art that certain modifications, combinations, and variations can be made in light of the above teachings.

Claims (9)

1. A needle head of a needle for preventing acupuncture and dissolving medicine comprises a pintle (1) and a needle stalk (2); the method is characterized in that: the syringe needle sets oversheath (3), and the pintle (1) lower part is located to oversheath (3) basal portion cover, and oversheath (3) top is provided with needle outlet hole (4), is provided with in oversheath (3) and resumes structure (5), resumes structure (5) main part cover outside locating needle stalk (2), resumes structure (5) basal portion cover and locates pintle (1) upper portion.

2. The needle head of the needle for preventing needle stick to dissolve medicine according to claim 1, wherein: the needle outlet hole (4) is eccentrically arranged at the top of the outer sheath (3).

3. A needlestick prevention drug dissolution needle tip as claimed in claim 1 or claim 2, in which: a guide pipe (6) is arranged at the position of the needle outlet hole (4) in the outer sheath (3), the upper part of the guide pipe (6) is a closed pipe, the lower part of the guide pipe is an open half pipe, and the length of the closed pipe is matched with that of the needle stem (2).

4. A needle tip for a needle resistant drug dissolving needle as defined in claim 3, wherein: and an outer protective layer (7) is arranged at the inner top of the outer sheath (3).

5. A needle tip for a needle resistant drug dissolving needle as defined in claim 3, wherein: the needle stalk (2) is of an arc-shaped structure.

6. The needle head of claim 5, wherein: the guide tube (6) is positioned at the inner side of the needle stalk (2).

7. The needle head of the needle for preventing needle stick to dissolve medicine according to claim 4, wherein: the outer protective layer (7) is of an elastic structure.

8. The needle head of the needle for preventing needle stick to dissolve medicine according to claim 4, wherein: the guide pipe (6) and the outer protective layer (7) are of an integral structure.

9. The utility model provides a prevent acupuncture needle of dissolving medicine, includes the needle tubing and with needle tubing complex syringe needle, its characterized in that: the needle head adopts the needle head of any one of the above claims 1 to 8.

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