CN204219521U - Scalp acupuncture - Google Patents

Abstract

A scalp needle, comprising a needle, a puncture handle, and an infusion tube, the needle is connected to the infusion tube; the puncture handle is formed on the side of the junction of the needle and the infusion tube; the infusion tube further includes a broken The flow protrusion; the scalp needle also includes a sleeve, and the sleeve includes a guide groove, a pressing protrusion, and a sleeve handle; the guide groove is formed on the side of the sleeve for guiding the sliding of the puncture handle; the pressing A protrusion is formed on the inner side of one end of the cannula, corresponding to the cut-off protrusion; the cannula handle is formed on the outer side of the cannula; the needle, the junction of the needle and the infusion tube, and the The flow-stopping protrusion is accommodated in the casing; the piercing handle passes through the guide groove and extends to the outside of the casing.

Description

scalp needle

technical field

The utility model relates to a scalp needle, in particular to a scalp needle which can prevent the liquid in the infusion tube from continuing to flow out of the needle when the needle is pulled out.

Background technique

Scalp needle is a commonly used medical device during infusion. After the infusion is over, the medical staff will remove the scalp needle from the patient. At this time, there will be medicinal liquid in the infusion tube or the blood that returns to the infusion tube due to failure to pull out the needle in time. If, before pulling out the scalp needle, the medical staff has turned off the infusion flow rate adjustment knob, then the scalp needle will not continue to flow out medicinal liquid or blood to the outside after being pulled out. If the medical personnel forget to close the infusion flow rate adjustment knob due to negligence, the scalp needle will continue to flow out the medicinal liquid or blood to the outside after being pulled out, causing the medicinal liquid to pollute the environment.

Utility model content

In view of the above problems, the utility model aims to provide a scalp needle that prevents the medicinal liquid from continuing to flow out and pollute the environment after the scalp needle is pulled out.

The scalp needle of the present utility model comprises a needle head, a puncture handle, and an infusion tube, and the needle head is connected with the infusion tube; It includes a cut-off protrusion; the scalp needle also includes a sleeve, and the sleeve includes a guide groove, a pressing protrusion, and a sleeve handle; the guide groove is formed on the side of the sleeve for guiding the puncture handle to slide; the The pressing protrusion is formed on the inside of one end of the cannula, corresponding to the flow-stopping protrusion; the cannula handle is formed on the outside of the cannula; the needle, the junction of the needle and the infusion tube, and The cut-off protrusion is accommodated in the casing; the piercing handle passes through the guide groove and extends to the outside of the casing.

Preferably, the surfaces corresponding to the flow-cutting protrusion and the pressing protrusion are respectively formed as rough surfaces.

Preferably, a groove is formed on the pressing protrusion for locking the flow-stopping protrusion.

Preferably, the cannula handle is located above the pressing protrusion.

Since the scalp needle of the utility model has a flow-stopping protrusion on the outside of the infusion tube and a pressing protrusion on the inside of the sleeve, when the sleeve is pushed forward and the needle is pulled out, the pressing protrusion will press the flow-stopping protrusion, and the flow-stopping The protrusion is moved downward, so that the infusion tube is compressed to cut off the flow, and the medicinal liquid will not flow outward, thereby preventing the medicinal liquid from polluting the outside.

Description of drawings

Fig. 1 is the structural representation of the scalp needle of the present utility model;

Fig. 2 is a schematic diagram of the internal structure of the scalp needle of the present invention;

Fig. 3 is the schematic diagram of the cannula of the scalp needle of the present utility model;

Fig. 4 is a schematic diagram of the positions and states of the components when the scalp needle is pierced into the human body;

Fig. 5 is a schematic diagram of the positions and states of the components when the scalp needle is pulled out from the human body.

Detailed ways

Below, in conjunction with accompanying drawing, the scalp needle of the present utility model is described in detail.

As shown in Figures 1-3, the scalp needle of the present utility model includes a needle head 1, a puncture handle 2, an infusion tube 5, a cut-off protrusion 3, and a sleeve 6; the sleeve 6 further includes a sleeve handle 4, a guide groove 7, Compression bulge8.

The needle 1 is combined with the infusion tube 5 , and the puncture handle 2 is formed on the side of the joint between the needle 1 and the infusion tube 5 . The cut-off protrusion 3 is formed on the outside of the infusion tube 5 .

The guide groove 7 is formed on the side of the sleeve 6, corresponding to the puncture handle 2; the pressing protrusion 8 is formed on the inner side of one end of the sleeve 6, corresponding to the stop protrusion 3; the sleeve handle 4 is formed on the outside of the sleeve 6 . Preferably, the cannula handle 4 is formed above the pressing protrusion 8 .

The needle 1 , the junction of the needle and the infusion tube, and the flow-stopping protrusion 3 are accommodated in the sleeve 6 . The piercing handle 2 extends to the outside of the casing 6 through the guide groove 7 .

As shown in Figure 4-5, when the scalp needle is pulled out from the patient, the medical worker can push the cannula handle 4 so that the puncture handle 2 is guided by the guide groove 7, and the needle 1 is gradually fully accommodated in the cannula 6, free from needle exposure. At this time, due to the movement of the cannula 6 relative to the needle 1, the pressing protrusion 8 gradually approaches the shut-off protrusion 3 until the two touch; at this time, further pushing the pressing protrusion 8 will press the shut-off protrusion 8 downward. The flow protrusion 3 makes the flow-cutting protrusion 3 press the infusion tube 5 downward to cause the infusion tube 5 to cut off the flow, reaching the state shown in FIG. 5 .

Here, the pressing protrusion 8 and the flow-breaking protrusion 3 are preferably rough surfaces, so as to facilitate the continuous and stable combination of the two. A groove can also be formed on the pressing protrusion 8 to hold the shut-off protrusion 3 .

In the scalp needle of the utility model, when the needle is pulled out and the needle is put into the cannula, the pressing protrusion on the cannula interacts with the flow-cutting protrusion on the infusion tube, and the flow-cutting protrusion is used to realize the cut-off of the infusion tube. Effectively prevent the liquid medicine from continuing to flow out and pollute the environment after the needle is pulled out.

Claims (4)

1. a scalp acupuncture, comprise syringe needle, puncture handle, tube for transfusion, described syringe needle is connected with described tube for transfusion; Described puncture handle is formed in the side of the joint portion of described syringe needle and tube for transfusion; The feature of described scalp acupuncture is:

Described tube for transfusion comprises further cutout protruding;

Described scalp acupuncture also comprises sleeve pipe, and described sleeve pipe comprises guide groove, compressing projection, sleeve pipe hands handle; Guide groove is formed at the side of sleeve pipe, slides for guiding described puncture handle; Described compressing convexes to form the inner side in described sleeve pipe one end, corresponding with the described projection that stops; Described sleeve pipe handle is formed in described outside of sleeve;

Joint portion and the described cutout projection of described syringe needle, syringe needle and tube for transfusion are contained in sleeve pipe; Described puncture handle extends to jacket exterior through described guide groove.

2. scalp acupuncture as claimed in claim 1, is characterized in that: described cutout is protruding is formed as rough surface respectively with the protruding corresponding surface of compressing.

3. scalp acupuncture as claimed in claim 1, is characterized in that: described compressing projection is formed with groove, protruding for the described cutout of locking.

4. scalp acupuncture as claimed in claim 1, is characterized in that: described sleeve pipe handle is positioned at the protruding top of described compressing.