CN2305204Y - Hypodermic syringe with safety shield - Google Patents

Abstract

A hypodermic syringe with a safety shield is characterized in that the outer wall surface of a cylindrical tube of the syringe is sleeved with the safety shield, the safety shield is provided with a rail groove which can be closed leftwards and rightwards and pushed upwards and downwards along a protruding shaft arranged at the periphery of the upper end of the outer wall of the cylindrical tube, a closed cover above the shield is provided with a buffer hole for penetrating an injection needle part, the rail groove on the shield is guided by the protruding shaft on the cylindrical tube to move upwards to close an injection part, puncture can be avoided, accidents can be prevented, and personnel for treating medical wastes can obtain safety guarantee.

Description

Hypodermic syringe with safety shield

The utility model relates to a hypodermic syringe for medical use, in particular to a hypodermic syringe with a safety shield, especially a safety shield with a rotatable and locked safety shield arranged outside the cylindrical tube of the syringe. Finally, move along the trend to close the knot to prevent accidental punctures and possible injuries during disposal after discarding.

Common hypodermic syringes are only covered with a needle sheath on the injection needle, and the sheath is separate, and its caliber is extremely small. When it is set on the injection needle, special care is required. In the case of slight negligence , there is still the risk of accidents caused by being stabbed, and the combination of the sheath is a general pressure sleeve method, which may loosen and fall off when encountering external force collisions, especially when the sheath is thrown away inadvertently. Covers are more likely to fall off, so environmentalists who collect and dispose of these wastes suffer from accidental stab wounds more frequently. Therefore, how to improve the safety of general hypodermic syringes is still an urgent fact.

In view of the fact that the conventional hypodermic syringes still have a certain degree of insecurity in use and waste disposal after use, the purpose of this utility model is to provide a hypodermic syringe with a safety sheath to protect the hypodermic syringe during use. A further layer of security can be obtained from the front and back, avoiding puncture injuries, preventing accidents, and ensuring the safety of personnel handling medical waste.

The purpose of this utility model is achieved in that:

A hypodermic syringe with a safety shield mainly includes a syringe body, which is divided into a syringe needle part, an injection tube part and a push rod, and is characterized in that a safety shield is sheathed on the outer wall of the syringe barrel, The side wall of the safety shield corresponds to the protruding shaft on the upper edge of the outer wall of the cylindrical tube, and is provided with a rail groove that can be rotated left and right along the protruding shaft and moved up and down, and the closing cover above the shield is provided for injection The buffer hole through which the needle part fits is formed by the screwing and moving of the safety shield to form a structure that can fit and remove the injection needle tube part.

The purpose of this utility model can also be achieved through the following measures:

形轨槽。The rail groove corresponding to the protruding shaft of the outer wall of the cylinder and opened on the side wall of the safety shield is formed by cutting to the right along the shield and then longitudinally cutting to the upper end of the shield at a right angle and then crossing to the right

rail groove.

Wherein, the inner side wall of the end of the rail groove at the lower end of the cylindrical shield is provided with a groove, and the groove is used for fitting the protruding shaft of the outer wall of the cylindrical tube to be pressed into the rail groove.

Wherein, the circumferential width of the piercing hole provided on the top surface of the cylindrical shield is equal to the length of the transverse rail groove.

Among them, the upper end of the injection cylinder can be plugged with a cap with a needle tube perforation on the top cover and a protruding shaft on the outside of the skirt, and then a cylinder shield with the same structure can be sleeved.

The utility model has the following positive and beneficial effects:

型导轨，从该护罩下端缘边的凹沟对准突轴穿合，使突轴沿剖切导轨使该护罩套结在注射器圆筒管外，并在护套上端盖体对应于注射针部设有可供穿合的缓冲孔穴，使该安全护罩具有在圆筒管外壁进行上、下推移及旋合锁闭的功效。1. The utility model is provided with a protruding shaft on the peripheral edge of the upper end of the outer wall of the cylindrical tube of the syringe, and a safety shield covering the outer wall of the cylindrical tube is provided with a

Type guide rail, align the protruding shaft with the groove on the lower edge of the shield, and make the protruding shaft fit along the cutting guide rail so that the shield is set outside the cylindrical tube of the syringe, and the upper end cover of the sheath corresponds to the injection The needle is provided with a buffer hole for threading and closing, so that the safety shield has the functions of pushing up and down on the outer wall of the cylindrical tube and screwing and locking.

2. The utility model locks the protective cover on the injection needle before and after using the syringe, so as to avoid accidental pricking of the injection needle or accidentally being stabbed when collecting and discarding medical tools, thereby achieving a safe and effective protection effect.

3. It is easy to use, and the fingers do not touch the needle tube at all during the injection operation.

Now illustrate with preferred embodiment in conjunction with accompanying drawing:

Fig. 1 is an exploded view of a hypodermic syringe with a safety shield of the present invention.

Figure 2 is a front view when the safety cover is closed.

FIG. 3 is a top view of the shield of the safety in FIG. 2 .

Fig. 4 is an explanatory diagram showing the direction of pushing down the safety cover.

Figure 5 shows an oblique view of the whole hypodermic syringe with the safety shield pulled down.

Fig. 6 is a schematic structural view of the utility model, which is a front view.

Fig. 7 is a top view of the safety shield in Fig. 6 .

Fig. 8 is a cross-sectional view when the safety cover is pulled down and is in close contact with the cylindrical tube.

Fig. 9 is an exploded view of another embodiment of the present invention.

Drawing number: 1 Hypodermic syringe body, 2 Injection needle part, 3 Cylindrical tube, 31 Protruding shaft, 4 Push rod, 5 Cylindrical tube safety shield, 51 Groove, 52 Rail groove, 53 Through hole, 6 sets cap, 61 protruding shaft, 62 piercing

型轨槽52，并在护罩顶盖对应于注射针管部2位置具设有弯弧槽形穿合孔53，将护罩5下端缘的凹沟51对合注射圆筒管3外壁上侧端的突轴31套合以护罩5，则可将护罩5系结在皮下注射器本体1上面，如图2、图3所示。在使用皮下注射器需将护罩5往下推移时，可参照图4的箭头所示方向操作，即可将套设在注射针管部2的安全护罩5向下推压而注射针管2即从护罩顶盖预设的穿合孔伸出，以供皮下注射之用。至于在注射后，即可依图4所示箭头的相反方向，将护罩5往上推移而将注射针管部2完全闭合，有效防止医护人员受到针尖的意外扎伤，并在处理此等医疗废弃物时受到有效程度的保护。Please refer to FIG. 1 , the hypodermic syringe with a safety shield of the present invention mainly includes a syringe body 1 , which is divided into an injection needle part 2 , a cylindrical tube part 3 and a push rod 5 . The size and specification of the main body 1 can be designed according to known medical standards. Generally, the volume of the cylindrical tube is below 6ml, and the injection needle tube is arranged in the center of the top cover of the cylindrical tube. The top cover of the cylindrical tube deviates from the center as an illustration). And a cylindrical safety shield 5 with an inner diameter slightly larger than the outer diameter of the cylindrical tube 3 is formed. A small protruding shaft 31 is provided on the upper edge of the outer wall of the injection cylinder 3, and a concave groove 51 is formed on the inner side wall of the side wall of the shield 5 corresponding to the bottom end of the small protruding shaft 31. Then slit at right angles to the upper end of the shield, and then cross-cut to the right.

A rail groove 52, and a curved arc groove-shaped piercing hole 53 is provided at the position corresponding to the injection needle tube part 2 on the top cover of the shield, and the concave groove 51 on the lower edge of the shield 5 is matched with the upper side of the outer wall of the injection cylinder 3 The protruding shaft 31 at the end is sleeved with the shield 5, and the shield 5 can be tied on the hypodermic syringe body 1, as shown in Fig. 2 and Fig. 3 . When the hypodermic syringe needs to be pushed down, the shield 5 can be operated in the direction indicated by the arrow in Fig. The pre-set piercing hole on the top cover of the shield protrudes for subcutaneous injection. As for after the injection, the shield 5 can be pushed up according to the opposite direction of the arrow shown in Figure 4 to completely close the injection needle tube 2, which can effectively prevent the medical staff from being accidentally stabbed by the needle point, and can be used during the treatment of such medical treatment. effective level of protection against waste.

Fig. 4 is a perspective view showing that the safety shield 5 is moved to the injection cylinder 3. Its shape is the same as that of a general hypodermic syringe, and the general hypodermic injection operation can be performed.

Furthermore, the opposite direction of the arrow shown in Figure 4 pushes the safety shield 5 downwards, then as shown in Figure 6, Figure 7 and Figure 8, when the shield 5 is rotated, the safety shield 5 provided on the shield 5 The rail groove 52 moves downward along the protruding shaft 31 on the upper side of the outer wall of the cylindrical tube 3, while the piercing hole 53 on the upper end of the top cover is biased to the left end, so that the injection needle tube part 2 protrudes from the piercing hole 53, The bottom of the shield 5 top cover is superimposed with the top of the cylindrical tube 3, and is closely attached to the injection cylindrical tube 3 to form a whole.

In addition, Fig. 9 is another embodiment of the present utility model, that is, a cap 6 is attached to the upper end of the cylindrical tube 3 in the existing hypodermic syringe body 1, and a protrusion is provided on the outer wall of the cap 6. The shaft 61 and the top surface of the cap 6 have a circular perforation 62 corresponding to the syringe tube 2, so that the conventional hypodermic syringe 1 can be sleeved with the safety shield 5 to effectively achieve the effect of the present utility model.

The hypodermic syringe with safety shield of the present utility model is extremely convenient to use. During use, according to the arrow direction shown in Figure 4, the safety shield 5 is rotated and pushed, and then the shield 5 can be pulled down and connected with The cylindrical tubes 3 are in a stacked state. It is used in the same way as the known hypodermic syringe. After use, push the safety shield 5 to the top of the cylindrical tube in the opposite direction to cover the injection needle tube part 2. During the injection operation, the fingers do not touch the needle tube at all. Safe and secure disposable syringes while disposing of waste.

Claims (5)

1. hypodermic syringe with safety guard, mainly comprise a syringe body, be divided into a syringe needle tube portion, injection pipe portion and push rod, it is characterized in that: sheathed with a safety guard in syringe cylinder pipe outside wall surface, and this safety guard sidewall is provided with and can screws and the rail groove of passing up and down along this prominent axle is left and right corresponding to the prominent axle that is located at cylindrical duct outer wall upper end periphery, and the closing lid of guard shield top is provided with for entry needle portion and wears the cushion hole that closes, borrow the passing that screws of safety guard, formation can be with injection needle portion fit and the structure of removing.

2. the hypodermic syringe with safety guard as claimed in claim 1 is characterized in that: the described rail groove that is opened in the safety guard sidewall corresponding to the prominent axle of cylinder outer wall along guard shield crosscut to the right again with right angle orientation rip cutting crosscut to the right and forming again to the guard shield upper end

Shape rail groove.

3. the hypodermic syringe with safety guard as claimed in claim 1 is characterized in that: wherein, rail groove terminal medial wall in cylinder guard shield lower end is provided with chase, and this chase is chimeric and be pressed in the rail groove for the prominent axle of cylindrical duct outer wall.

4. the hypodermic syringe with safety guard as claimed in claim 1 is characterized in that: wherein, cylinder guard shield end face is offered wears the length that the circumferential width of closing the hole is equal to the transverse rails groove.

5. the hypodermic syringe with safety guard as claimed in claim 1, it is characterized in that: wherein, can having injection needle perforation, skirt section with top cover outside, injection barrel pipe upper end cover plug be provided with the cap bag of prominent axle, sheathed again cylinder guard shield with same structure.

Images