CN203619985U - Safe transfusion needle capable of preventing bubbles from forming - Google Patents

Abstract

The utility model discloses an anti-bubble formation type safety infusion needle, which comprises a needle seat, an infusion hose and an infusion needle connected in sequence, the infusion hose is provided with a filter bubble, and the filter bubble is provided with an air bubble filter film , the outer cover of the infusion needle is provided with a safety sleeve; the anti-bubble formation type safety infusion needle of the utility model, by adding a filter bubble with an air bubble filter film in the infusion hose, the bubbles mixed in the liquid medicine will be removed after passing through the filter bubble It is trapped by the air bubble filter membrane and cannot flow through, which effectively prevents the air from entering the patient's blood vessel through the infusion tube; the infusion needle can use the safety sleeve to cover the needle tip of the infusion needle, which has the effect of isolation and protection, and prevents the needle from being exposed outside. Cross-infection of blood-borne diseases; the utility model has the advantages of simple structure, convenient use, great progress in safety, and is worthy of popularization and application.

Description

Anti-bubble safety infusion needle

technical field

The utility model relates to a medical intravenous infusion needle, in particular to a safety infusion needle capable of preventing foam formation.

Background technique

In medical treatment, it is often necessary to achieve the therapeutic purpose by intravenous infusion of patients, and at this time, an intravenous infusion needle must be used. A general intravenous infusion needle includes an infusion hose, an infusion needle connected to one end of the infusion hose, and a needle holder connected to the other end of the infusion hose. The infusion needle, the infusion hose, and the needle holder are connected in sequence to form an infusion passage. Wherein, the infusion hose is used to deliver sterile solution or medicine, the infusion needle has a beveled needle point to pierce the patient's skin and penetrate into the vein, and the needle seat is connected to the dropper and the infusion bottle. But there are at least two unsafe factors in the venous infusion needle of this structure: the first, the used infusion needle after the medical personnel carries out venipuncture to the patient has very big potential safety hazard because the needle is exposed outside. In the process of retrieving the infusion needle, personnel are easily injured by the needle or other people, resulting in cross-infection of blood-borne diseases; If the tube enters the patient's blood vessel, severe air embolism will be caused, and the safety is insufficient.

Therefore, it is necessary to improve the existing intravenous infusion needles to enhance the safety of its use, so that it can not only prevent the cross-infection caused by the exposed needles of the used infusion needles, but also prevent air from passing through the infusion soft The tube enters the patient's blood vessel.

Utility model content

In view of this, the utility model provides an anti-bubble-forming safety infusion needle, which greatly improves the safety of use, not only can prevent the cross-infection of the used infusion needle due to the exposed needle, but also can Prevent air from entering the patient's blood vessels through the infusion hose.

The anti-bubble formation safety infusion needle of the utility model comprises a needle seat, an infusion hose and an infusion needle connected in sequence, the infusion hose is provided with a filter bubble, and the filter bubble is provided with an air bubble filter membrane. The infusion needle cover is provided with a safety sleeve.

Further, the lower end of the infusion hose is hinged with a safety ferrule with a bar-shaped groove, and the safety ferrule can move toward the needle tip of the needle, so that the needle tip is snapped into the bar-shaped groove.

Further, the bubble filter membrane is arranged obliquely to the axial centerline of the infusion hose.

Further, the safety sleeve is a hard tube, and the head of the safety sleeve is closed.

Further, the lower end of the infusion hose is fixed with a needle wing, and the needle wing is arranged above the safety ferrule.

Furthermore, the needle wing is butterfly-shaped and has anti-skid bumps on its surface.

Further, the part of the infusion hose above the filter bubble is provided with a branch infusion hose, and the end of the branch infusion hose is provided with a branch needle seat with a heparin cap.

Further, a protective cap is screwed on the upper end of the needle base.

Beneficial effects of the utility model: the anti-bubble formation type safety infusion needle of the utility model, by adding a filter bubble with a bubble filter membrane in the infusion hose, the bubbles mixed in the liquid medicine will be filtered by the bubble filter membrane after passing through the filter bubble It is trapped and unable to flow through, which effectively prevents the air from entering the patient's blood vessels through the infusion hose; the infusion needle can use the safety sleeve to cover the needle tip of the infusion needle, which has the effect of isolation and protection, and prevents the needle from being exposed outside and causing blood-borne diseases. Cross-infection; the utility model is simple in structure, easy to use, and has great progress in safety, and is worthy of popularization and application.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model.

Detailed ways

Fig. 1 is a structural schematic diagram of the present utility model, as shown in the figure: the anti-bubble formation type safety infusion needle of the present embodiment, the anti-bubble formation type safety infusion needle includes needle base 3, infusion hose 1 and infusion needle connected in sequence 2. The infusion hose 1 is provided with a filter bubble 4, the filter bubble 4 is provided with a bubble filter membrane 5, and the infusion needle 2 is provided with a safety sleeve 61; the needle seat 3, the infusion hose 1 and the infusion The needles 2 are connected in turn to form an infusion channel, in which the infusion hose 1 is used to deliver sterile solutions or medicines, the infusion needle 2 has a beveled needle point to puncture the patient's skin and penetrate into the vein, and the needle seat 3 is connected to the dropper and the infusion bottle; The needle is a disposable medical product, and its material composition is the same as that of the prior art, so it will not be repeated here; the filter bubble 4 is a circular or oblate hose part that protrudes radially in the infusion hose 1, and there is an air bubble in it. Filter membrane 5; the air bubbles mixed in the liquid medicine will be intercepted by the air bubble filter membrane 5 after passing through the filter bubble 4 and cannot flow through, effectively preventing air from entering the patient's blood vessel through the infusion hose 1; the safety sleeve 61 is a straight tube with a hollow structure. The tube, which can cover the needle tip of the infusion needle 2 when it is connected outside the infusion needle 2, uses the safety sleeve 61 to cover the needle tip of the infusion needle 2 before using the infusion needle, so as to isolate and protect the infusion needle 2.

In this embodiment, the lower end of the infusion hose 1 is hinged with a safety ferrule 62 with a bar-shaped groove, and the safety ferrule 62 can move toward the needle tip of the infusion needle 2, so that the needle tip is stuck into the Bar-shaped groove; the safety ferrule 62 is an open groove body with one opening, which is hinged at the lower end of the infusion hose 1, and the lower end is the end of the infusion hose 1 close to the infusion needle 2, which can move toward the needle tip of the infusion needle 2 and block it. Needle tip; before using the infusion needle, the safety ferrule 62 is bent down to partially enclose the safety sleeve 61, that is, the safety sleeve 61 is placed in the opening groove of the safety ferrule 62 at this time, which can make the connection of the safety sleeve 61 more firm , to prevent the safety sleeve 61 from inadvertently detaching from the infusion needle 2 and stabbing the user or others; after using the infusion needle, even if the safety sleeve 61 cannot be used due to loss or special medical regulations, the safety ferrule 62 can also be bent down to partially Enclose the needle tip of the infusion needle 2, thereby avoiding the cross-infection of blood-borne diseases caused by the needle being exposed outside; as for the specific shape of the safety ferrule 62, the utility model does not limit it, as long as the shape can achieve the purpose, including Cuboid trough, cylinder trough, etc.

In this embodiment, the air bubble filter membrane 5 is arranged obliquely to the axial centerline of the infusion hose 1; the inclination of the air bubble filter membrane 5 in the filter bubble 4 is different, and the total surface area of its function is also different; when When the bubble filter membrane 5 is perpendicular to the axial centerline of the transfusion hose 1, the active area of the bubble filter membrane 5 is the smallest; therefore, the inclination angle of the bubble filter membrane 5 and the axial centerline of the transfusion hose 1 is preferably 10 ° to 60°, not only can increase the contact area with air bubbles, but also the oblique surface is conducive to trapping air bubbles and enhancing the filtering effect.

In this embodiment, the safety sleeve 61 is a hard tube, and the head of the safety sleeve 61 is closed; the shape and size of the safety sleeve 61 can be the same as that of the infusion hose 1, but the material is hard. Plastic, but also has a certain degree of elasticity at the same time to form an effective protective effect; the safety sleeve 61 is sleeved outside the infusion needle 2, which is convenient for disassembly and connection; the head of the safety sleeve 61 is closed, which can effectively prevent external dust from passing through the head. Entering, the structural strength of the safety sleeve 61 can also be enhanced.

In this embodiment, the lower end of the infusion hose 1 is fixed with a needle wing 8, and the needle wing 8 is arranged above the safety ferrule 62; the setting of the needle wing 8 is convenient for the medical staff to hold the needle for puncture.

In this embodiment, the needle wing 8 is butterfly-shaped and has anti-slip bumps 81 on its surface; the butterfly shape is similar to the wing shape of a butterfly, and the needle wing 8 takes the infusion needle 2 as the axis of symmetry; the butterfly-shaped needle wing 8 It is more adaptable to the operating habits of medical staff and makes the operation easier; the anti-slip bump 81 can effectively enhance the friction performance of the needle wing 8, which will prevent the medical staff from slipping when puncturing; After the medical staff punctures the patient's blood vessel with the infusion needle 2, the protective layer on the sticker can be removed to fix the needle, which reduces the complexity of the operation.

In this embodiment, the infusion hose 1 is provided with a branch infusion hose 9, and the end of the branch infusion hose is provided with a branch needle seat 91 with a heparin cap, and the branch infusion hose 9 is arranged on the Above the filter bleb 4; the infusion needle is designed to have a branch structure. If the patient needs to inject drugs intravenously during the infusion, the injection can be directly through the branch needle seat 91, so that there is no need to use a syringe for injection, so as to reduce the pain of the patient 1. Reduce the workload of medical staff; the branch infusion hose 9 is arranged on the filter bubble 4, so that the filter bubble 4 can exert a filtering effect on the injected medicine.

In this embodiment, the upper end of the needle base 3 is screwed with a protective cap 7; the protective cap 7 is cylindrical, has internal threads and vertical anti-slip lines on the outside, and can prevent external dust from entering the needle base 3.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (8)

1. an Anti-bubble formation type safety transfusion needle, comprise the needle stand (3), infusion tube (1) and the infusion needle (2) that connect successively, it is characterized in that: in described infusion tube (1), be provided with folliculus (4), described mistake in folliculus (4) is provided with bubble filter membrane (5), the outer condom pipe (61) that is arranged with of described infusion needle (2).

2. Anti-bubble formation type safety transfusion needle according to claim 1, it is characterized in that: described infusion tube (1) lower end is hinged with the safe cutting ferrule (62) with bar-shaped trough, described safe cutting ferrule (62) can, to the needle point direction motion of described infusion needle (2), make described needle point snap in described bar-shaped trough.

3. Anti-bubble formation type safety transfusion needle according to claim 2, is characterized in that: described bubble filter membrane (5) favours the longitudinal center line setting of described infusion tube (1).

4. Anti-bubble formation type safety transfusion needle according to claim 1, is characterized in that: described safe sleeve pipe (61) is stereoplasm tube, and the sealing of the head of described safe sleeve pipe (61).

5. Anti-bubble formation type safety transfusion needle according to claim 4, is characterized in that: the lower end of described infusion tube (1) is installed with the pin wing (8), and the described pin wing (8) is located at the top of described safe cutting ferrule (62).

6. Anti-bubble formation type safety transfusion needle according to claim 5, is characterized in that: the described pin wing (8) is butterfly and its surface is provided with anti-skidding salient point (81).

7. according to the Anti-bubble formation type safety transfusion needle described in any one in claim 1 to 6, it is characterized in that: described infusion tube (1) is provided with branch's infusion tube (9), the end of described branch infusion tube is provided with the branch's needle stand (91) with calparine cap, and described branch infusion tube (9) is located at the described top of crossing folliculus (4).

8. Anti-bubble formation type safety transfusion needle according to claim 7, is characterized in that: the upper end of described needle stand (3) is bolted with head protector (7).

Images