CN2601097Y

CN2601097Y - Disposable butterfly needle safety sleeve

Info

Publication number: CN2601097Y
Application number: CN 03245074
Authority: CN
Inventors: 汪贤宗
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-11
Filing date: 2003-04-11
Publication date: 2004-01-28
Anticipated expiration: 2013-04-11

Abstract

The utility model relates to a disposable butterfly needle safe needle sheath, which mainly solves the problem that present butterfly needle design, with or without the needle sheath, has the danger that the body of the user is easy to get injured and then get infected. The design is a chucking stop groove used on the side flange of the needle sheath and communicated with the needle sheath guiding groove in the triangle shape, so that when the butterfly needle is used, put into the needle sheath and is about to be disposed, the foils of the butterfly needle can be chucked into the chucking groove. Thereby, the chucking groove of the needle sheath is used to stop the foils of the butterfly needle, so as to avoid the butterfly needle pinhead from protruding out of the needle sheath, effectively prevent the medical personnel from being pricked by the pinhead and getting infected and improve the protection safety of the needle sheath.

Description

Disposable Butterfly's Needle Safe Needle Guard

Technical field

This utility model relates to a kind of Disposable Butterfly's Needle Safe Needle Guard, refers to a kind of drop butterfly pin that makes especially, and it uses, abandons safer needle guard.

Background technology

Numerous by the structure that designs at medical butterfly pin at present, wherein for example No. 221556 " innovation structure of butterfly needle safety needle cover " patent case of patent announcement is an example; The feature of this patent application mainly is provided with the needle guard of a hollow tube-shape, offer a line of rabbet joint on the needle guard, the front end of this line of rabbet joint is " V " font and the introducing port of circular arc slightly, the stage casing offer one or about each thin straight trough seam, end is offered an elongated rectangular clamping slot, this clamping slot front end is established two inclination lead angles, and this butterfly pin is set in the safe needle guard, and the fin of butterfly pin supports to arrive in the clamping slot that is fixed in safe needle guard.

And the purpose of above-mentioned patent utility model, mainly can the butterfly syringe needle that polluted will be used by this, recyclable retraction is in the safety needle guard, and with leading edge " V " font and the slightly guiding of the introducing port of circular arc of needle guard, and the fin that makes the butterfly pin is entered in the line of rabbet joint, and make the retraction of butterfly pin be positioned to desire to reach the purpose of safe retraction butterfly pin in the hollow cylinder of safe needle guard with this by the blocking of the line of rabbet joint.

Yet this kind " innovation structure of butterfly needle safety needle cover ", owing to directly form the introducing port of one " V " font opening in the needle guard front end, to cause stria to be sewed with wide phenomenon, add its clamping slot front end and be provided with the design of two inclination lead angles, therefore in case the butterfly pin is subjected to that external force is pushed or when shaking, inclination lead angle guiding via clamping slot, just make the fin of butterfly pin skid off easily by the stria seam, and syringe needle is protruded from outside the needle guard, the personnel that cause are subjected to needle sting and the danger of infective virus.

Because the structure and the spatial shape all too thereof of traditional type butterfly pin are simple, " innovation structure of butterfly needle safety needle cover " patent of above-mentioned bulletin can be provided with safe needle guard in the innovation of so simple textural row again and belong to difficult, therefore desire on the limited spatial shape of butterfly pin commonly used, capable again breakthrough and innovation is extremely difficult.

In view of this utility model people is the research and development improvement that constantly progresses greatly, and utility model goes out a Disposable Butterfly's Needle Safe Needle Guard finally.

The utility model content

Main purpose of the present utility model is to provide a kind of syringe needle of butterfly pin can being hidden really to place, and suffers syringe needle to stab the Disposable Butterfly's Needle Safe Needle Guard of infective virus effectively to prevent personnel.

Another purpose of the present utility model is to provide a kind of syringe needle of butterfly pin can being hidden really place, stop the worthless fellow with used butterfly pin through clean or sterilization after flow into medical device market again and re-use.

For achieving the above object, this utility model is that a kind of Disposable Butterfly's Needle Safe Needle Guard is provided, include a butterfly pin and a needle guard, this butterfly pin is provided with a syringe needle, the rear end of syringe needle connects drop and takes over, the both sides of syringe needle respectively extend horizontally away a fin, it is characterized in that: this needle guard comprises the cylindrical body that the hollow endoporus is arranged in, the front end of this needle guard forms the stomidium that can supply syringe needle to protrude out, rear end one lateral margin of this needle guard, then cut open and establish a straight profile groove that is connected with the needle guard endoporus, and this needle guard end is with respect on the straight profile groove by its end, downside, then respectively extending one in a horizontal manner can be interlocked, following cramp, and the end that makes this straight profile groove is provided with a fastening groove, this needle guard is positioned at the top of fastening groove again, cuts open and establishes an inclined guide groove that is connected with fastening groove, and this inclined guide groove extends towards the front end of needle guard.

Advantageously, wherein be respectively equipped with button hole and button column between this upper and lower cramp, make to get mutually between upper and lower cramp to fasten.

Wherein, the both side edges of this needle guard is respectively cutd open and is provided with profile groove always.

The use the beneficial effects of the utility model are: be used in 16 of straight profile groove 12 and inclined guide grooves, triangle fastening groove 15 intention of the ccontaining effect of one tool backstop are set, really can effectively butterfly pin 20 fins of returning in the needle guard 10 23 be limited in the fastening groove 15, effectively prevent butterfly pin 20 syringe needles, 21 protrusions and stab other people to reach, have the syringe needle of butterfly pin to be hidden really and place, the personnel of preventing suffer syringe needle to stab the advantage of safety such as infective virus, are a quite excellent utility model really.

Description of drawings

The perspective exploded view of Fig. 1 this utility model preferred embodiment.

Three-dimensional appearance sketch map during Fig. 2 this utility model preferred embodiment combination.

The generalized section of Fig. 3 this utility model Fig. 2.

Fig. 4 this utility model syringe needle protrudes the generalized section of action.

The three-dimensional appearance sketch map that Fig. 5 this utility model syringe needle protrudes.

The generalized section of Fig. 6 this utility model syringe needle withdrawal action.

The generalized section of Fig. 7 this utility model syringe needle withdrawal action.

Three-dimensional appearance sketch map during the withdrawal of Fig. 8 this utility model syringe needle.

The longitudinal profile sketch map of the upper and lower cramp of Fig. 9 this utility model preferred embodiment position.

The longitudinal profile sketch map of the upper and lower cramp of another preferred embodiment of Figure 10 this utility model position.

The specific embodiment

At first please cooperate referring to Fig. 1, Fig. 2 and shown in Figure 3, Disposable Butterfly's Needle Safe Needle Guard of the present utility model includes a butterfly pin 20 and a needle guard 10, wherein:

One butterfly pin 20 mainly is provided with a syringe needle 21, and the front end of this syringe needle 21 is the tip that is inserted in human body, and the rear end of syringe needle 21 then takes over 22 for the drop that can connect drop; A fin 23 is respectively extended with horizontal in the both sides of this syringe needle 21 again;

One needle guard 10, comprise the cylindrical body that hollow endoporus 11 is arranged in, one end of needle guard 10 forms the front end 100 that can protrude out for butterfly pin 20 syringe needles 21 as shown in Figure 1, the both side edges of the rear end 101 of this needle guard 10, then respectively cut open and be provided with always profile groove 12 as Fig. 1 by 101 ends, rear end, shown in Figure 3, each straight profile groove 12 is connected with the endoporus 11 of needle guard 10, and be positioned at the end with respect to straight profile groove about in the of 12 in this needle guard 10, extend on one cramp 13 and cramp 14 once respectively in a horizontal manner, on, following

cramp

13,14 are respectively equipped with button hole 130 and button column 140, this button column 140 must embed and be snapped in the button hole 130, make with this, following

cramp

13,14 must fasten mutually as Fig. 3 and shown in Figure 9, the art end of this straight profile groove 12 then is provided with the fastening groove 15 of a triangle draw-in groove shape, as Fig. 1, shown in Figure 3.This needle guard 10 is positioned at the top of fastening groove 15 again, then cut open and establish an inclined guide groove 16 that is connected with fastening groove 15 as Fig. 1, shown in Figure 3, this inclined guide groove 16 is downward-sloping extension as shown in Figure 3 towards needle guard 10 front ends 100 again, and in the middle section position place of inclined guide groove 16, depression has the caulking groove 160 that can set for the fin 23 of butterfly pin 20, make each inclined guide groove 16 extend the paragraph that is distributed to respect to needle guard 10 front ends 100, then formation is horizontally extending straight trough section 161 as Fig. 1, shown in Figure 3.

By this, when this utility model in when assembling such as Fig. 2, shown in Figure 3, butterfly pin 20 the whole series can be embedded by needle guard 10 rear ends 101, and fin 23 passed to inclined guide groove 16, and fin 23 inlay cards are placed in the caulking groove 160 form the location as Fig. 2, shown in Figure 3, button hole 130, button column 140 with the upper and

lower cramp

13,14 of needle guard 10 is interlocked again, and forms safe needle guard 10 of the present utility model.

Please cooperate again referring to Fig. 4, shown in Figure 5, safe needle guard 10 wherein of the present utility model in use, the operator can move front end 100 thrusters towards needle guard 10 of the fin 23 of butterfly pin 20 shown in the arrow of Fig. 4, and fin 23 must be advanced along inclined guide groove 16, last straight trough section 161 along guide groove 16, syringe needle 21 is stretched out as shown in Figure 5 by the front end 100 of needle guard 10, use syringe needle 21 to come the patient is carried out injection work to make things convenient for the medical matters operator.

Again please referring to Fig. 6, Fig. 7 and shown in Figure 8, when butterfly pin 20 injections finishing of the present utility model back desires to be abandoned, can promote fin 23 earlier moves towards fastening groove 15 directions of needle guard 10, and make syringe needle 21 retractions that fin 23 drives butterfly pin 20 simultaneously in the endoporus 11 of needle guard 10 front ends 100 as Fig. 6, shown in Figure 8, and make fin 23 and then be embedded in the fastening groove 15 of needle guard 10; What need be illustrated especially is, this utility model is by the design that triangular groove shape fastening groove 15 is set in straight profile groove 12 terminals, the fin 23 of butterfly pin 20 is being retracted into behind fastening groove 15, just be subjected to stopping of fastening groove 15, and can't pass to the direction of inclined guide groove 16 again, even if, also can guarantee that syringe needle 21 can not protrude from needle guard 10 again and stab other people outward because of the barrier effect of fastening groove 15 so there is external force to push fin 23.Can guarantee that more personnel are not subjected to syringe needle 21 to stab the butterfly needle safety needle cover of infective virus.

" Disposable Butterfly's Needle Safe Needle Guard " of the present utility model in another purpose that straight profile groove 12 terminals are provided with the design of triangular groove shape fastening groove 15 be to stop the worthless fellow with used butterfly pin through clean or sterilization after flow into medical device market again and re-use.

Should illustrate around here, be that above-mentioned fastening groove 15 is not to be necessity with the triangle draw-in groove, all belongs to feasible as long as can block the shape person who ends or pin butterfly pin fin; And 15 of this fastening grooves are located at end one-sided also feasible of these needle guard 10 straight profile grooves 12; The rear end of the inclined guide groove 16 that is connected with this fastening groove 15 in addition is not necessarily to be the downward-sloping necessity that extends to, as is horizontal-extending and also belongs to feasible; In addition, the caulking groove 160 that the fin 23 of Gong the butterfly pin 20 at the middle section position place of this inclined guide groove 16 is set also is not to be necessary with the depression, explanation sincerely.

As shown in figure 10, the straight profile groove 12 of this utility model needle guard 10, can only cut open a side of being located at needle guard 10, and make that relatively being positioned at straight profile groove 12 upper and lower last cramps 13 reaches cramp 14 down, also only form the state of stretching by an epitaxial lateral overgrowth of needle guard 10, as shown in figure 10, form another enforcement aspect of this utility model needle guard 10.

Comprehensive the above, " Disposable Butterfly's Needle Safe Needle Guard " of the present utility model, be used in 16 of straight profile groove 12 and inclined guide grooves, triangle fastening groove 15 intention of the ccontaining effect of one tool backstop are set, really can effectively butterfly pin 20 fins of returning in the needle guard 10 23 be limited in the fastening groove 15, effectively prevent butterfly pin 20 syringe needles, 21 protrusions and stab other people to reach, have the syringe needle of butterfly pin to be hidden really and place, the personnel of preventing suffer syringe needle to stab the advantage of safety such as infective virus, are a quite excellent utility model really.

Claims

1, a kind of Disposable Butterfly's Needle Safe Needle Guard, include a butterfly pin and a needle guard, this butterfly pin is provided with a syringe needle, one end of syringe needle connects drop and takes over, the both sides of syringe needle respectively extend horizontally away a fin, it is characterized in that: this needle guard comprises the cylindrical body that the hollow endoporus is arranged in, the front end of this needle guard form can for syringe needle protrude out stomidium, rear end one lateral margin of this needle guard, then cut open and establish a straight profile groove that is connected with the needle guard endoporus by its end, and this needle guard end is with respect on the straight profile groove, downside, then respectively extending one in a horizontal manner can be interlocked, following cramp, and make the end of this straight profile groove be provided with a fastening groove, this needle guard is positioned at the top of fastening groove again, cut open and establish an inclined guide groove that is connected with fastening groove, this inclined guide groove extends towards the front end of needle guard.

According to the described Disposable Butterfly's Needle Safe Needle Guard of claim 1, it is characterized in that 2, this inclined guide groove extends to needle guard front end place, form the straight trough section of a horizontal extension.

3, according to the described Disposable Butterfly's Needle Safe Needle Guard of claim 1, it is characterized in that,, establish a depression caulking groove that can supply butterfly pin fin to set in the middle section position place of this inclined guide groove.

4, according to the described Disposable Butterfly's Needle Safe Needle Guard of claim 1, it is characterized in that, be respectively equipped with button hole and button column between this upper and lower cramp, this button column must embed button and terminate in the button hole, is buckled into one mutually so that get between upper and lower cramp.

According to the described Disposable Butterfly's Needle Safe Needle Guard of claim 1, it is characterized in that 5, the both side edges of this needle guard is respectively cutd open and is provided with profile groove always.

6. according to the described Disposable Butterfly's Needle Safe Needle Guard of claim 1, it is characterized in that this fastening groove is the triangle draw-in groove.

According to the described Disposable Butterfly's Needle Safe Needle Guard of claim 1, it is characterized in that 7, this inclined guide groove extends to needle guard front end place, form one and tilt to extend.