CN208372225U - A kind of remaining needle safety device - Google Patents

Abstract

A kind of remaining needle safety device, including puncture needle, Paracentesis needle holder, rubber plug, nut cap, the Paracentesis needle holder is fastenedly connected with puncture needle, there is limit point on the nearly needle tip needle body of puncture needle, it limits spot diameter and is greater than needle body diameter, needle body passes through rubber plug, rubber plug is cylindrical, it is fixed in nut cap, nut cap is cylindrical, there is limit hole on the capping of nut cap, aperture be less than limit point, once it is excessive that the utility model solves retracting action in current puncture needle use process, the puncture needle for being stained with blood samples of patients can accidentally injure medical staff, and then it can lead to the problem of medical staff is infected by entrained germ in blood samples of patients, and the utility model is simple and practical in structure, suitable for straight type and Y type remaining needle, with great market popularization value.

Description

A kind of remaining needle safety device

Technical field

The utility model relates to Medical Devices, especially a kind of remaining needle safety device.

Background technique

Venous detaining needle is a kind of medical instrument for infusion, and venous detaining needle is easy to operate, is suitable for The puncture at any position, while the pain that patient punctures repeatedly is alleviated, the workload of nursing staff is alleviated, it is clinically deep Suffered from by shield and being welcome.In clinical use, puncture needle leads remaining needle casing to enter the vein blood vessel of human body.After seeing blood back, really Recognize venipuncture success, puncture needle is extracted out, and only the remaining needle casing of material softness is retained in vein blood vessel.Medical fluid is logical Cross remaining needle casing input human body.Remaining needle casing is made of the soft material with certain elasticity, can be pacified in human vein It is used in full indwelling time, and the bending synchronous with vein with people's limb motion, so that injection site still can be acted freely, it will not The anxiety of spinosity perforating veins.It avoids frequently to puncture in this way and cause suffering to patient.

However found in clinical manipulation, when medical staff extracts the puncture needle of venous detaining needle out, the needle point of puncture needle It has and certainly possible stabs medical staff.The reason of causing this accident is mainly to be commonly seen but due to a kind of usually by people's ignorance Natural reaction, by taking the movement of extraction bottle stopper common in life as an example: being remain stationary when people holds bottle body on the other hand, another hand is used When power extracts bottle stopper, the hand for holding bottle stopper has one during tending to the whipping far from bottle body to be stopped rapidly and reversely bounces back Movement, which is the natural reaction that people bumps against hard object in order to avoid hand in quick whipping, is difficult to be overcome substantially. As uncorking the bottle, for medical staff after firmly extracting puncture needle, the hand for holding steel needle equally has the process of a retraction, And syringe needle corresponds to the another hand of medical staff just at this time.Once retracting action is excessive, it is stained with the puncture needle of blood samples of patients Medical staff can be accidentally injured, and then can lead to medical staff and infected by germ entrained in blood samples of patients.In addition to this, when processing is useless It is equally possible when abandoning puncture needle that staff is caused to be wounded by stabbing, difficulty is caused to medical waste special treatment, to cause serious Social safety hidden danger.

Summary of the invention

The utility model to solve the above problems, provided a kind of remaining needle safety device.

The technical solution of the utility model is achieved in that

A kind of remaining needle safety device, including puncture needle, Paracentesis needle holder, rubber plug, nut cap, the Paracentesis needle holder with wear Thorn steel needle is fastenedly connected, and has limit point on the nearly needle tip needle body of puncture needle, and limit spot diameter is greater than needle body diameter, and needle body passes through Rubber plug, rubber plug is cylindrical, is fixed in nut cap, and nut cap is cylindrical, there is limit hole on the capping of nut cap, aperture be less than limit Site.

The nut cap is made of rigid plastics.

The height of the nut cap is greater than the distance of puncture needle limit point to needle point.

There is semicircle groove on the outside of the nut cap, rabbets with the semicircle salient point of indwelling needle inner wall.

There is blood back channel in the puncture needle.

Once the utility model solves in current puncture needle use process, retracting action is excessive, is stained with wearing for blood samples of patients Thorn steel needle can accidentally injure medical staff, and then can lead to the problem of medical staff is infected by entrained germ in blood samples of patients, and this Utility model is simple and practical in structure, is suitable for straight type and Y type remaining needle, has great market popularization value.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the schematic diagram of the utility model puncture needle steel needle body.

Fig. 3 is that the utility model takes out the semi-detached state of puncture needle.

Fig. 4 is that the utility model takes out puncture needle safeguard protection state.

Fig. 5 is the schematic diagram that the utility model puncture needle is limited by nut cap.

1- Paracentesis needle holder；2- puncture needle；3- rubber plug；4- nut cap；5- indwelling needle；6- limit point；7- limit hole；8- is recessed Slot；9- salient point；10- blood back channel.

Specific embodiment

As shown in Figures 1 and 2, the utility model includes including puncture needle, Paracentesis needle holder, rubber plug, nut cap, the puncture Needle stand is fastenedly connected with puncture needle, there is limit point on the nearly needle tip needle body of puncture needle, and limit spot diameter is greater than needle body diameter, Needle body passes through rubber plug, and rubber plug is cylindrical, is fixed in nut cap, and nut cap is cylindrical, there is limit hole, aperture on the capping of nut cap With less than limit point, the nut cap is made of rigid plastics, and the height of the nut cap is greater than puncture needle limit point to needle point There is semicircle groove in distance, the nut cap outside, rabbets with the semicircle salient point of indwelling needle inner wall, have blood back in the puncture needle Channel.

The utility model is after puncture needle success puncture vessel, as shown in Figure 1, when extracting puncture needle out, as Fig. 3, Fig. 4 and Fig. 5 is before the limit point of puncture needle is moved to nut cap limit hole, since nut cap groove and indwelling needle salient point are embedding It connects, nut cap will not move, when limit point is moved at the limit hole, since the diameter of limit point protrusion part is greater than limit Hole aperture, limit point can not be by limit holes, then limit point will block limit hole and nut cap is driven to move together to lid at this time Cap is pulled away indwelling needle completely.Since the length of nut cap is greater than the distance of limit point to needle point, when the limit point is moved to When the limit hole, the needle point of puncture needle can be completely disposed in rubber plug, to effectively prevent stabbing.

The limit point of the puncture needle of the utility model is welded on steel needle after can be steel needle forming, can also be in steel needle After molding, using press machine punching press on steel needle needle body, limit point is formed, the inside blood back channel of limit point is oval, with Rest part blood back channel is connected in steel needle.

Steel needle needle tip during installation, is first inserted into indwelling needle by the utility model, then is installed and covered from the steel needle other end Cap and rubber plug, it is finally that steel needle and Paracentesis needle holder is fixed.

Claims (5)

1. a kind of remaining needle safety device, it is characterised in that: including puncture needle, Paracentesis needle holder, rubber plug, nut cap is described to wear Pricker seat is fastenedly connected with puncture needle, has limit point on the nearly needle tip needle body of puncture needle, it is straight that limit spot diameter is greater than needle body Diameter, needle body pass through rubber plug, and rubber plug is cylindrical, is fixed in nut cap, and nut cap is cylindrical, have limit hole on the capping of nut cap, Aperture be less than limit point.

2. a kind of remaining needle safety device according to claim 1, it is characterised in that: the nut cap is by rigid plastics system At.

3. a kind of remaining needle safety device according to claim 1, it is characterised in that: the height of the nut cap, which is greater than, wears Pierce the distance of steel needle limit point to needle point.

4. a kind of remaining needle safety device according to claim 1, it is characterised in that: have semicircle recessed on the outside of the nut cap Slot is rabbeted with the semicircle salient point of indwelling needle inner wall.

5. a kind of remaining needle safety device according to claim 1, it is characterised in that: have blood back in the puncture needle Channel.