WO2005077442A1 - A disposable safety butterfly needle structure - Google Patents

Abstract

A disposable safety butterfly needle structure mainly comprises a protecting sheath member (1), a slide member (2), and a flexible tube (5). The protecting sheath member (1) is provided with a slide slot (12) behind which there is a receptacle (13). Convex buckles (121) are provided respectively in the vicinity of the front and back ends of the slide slot (12). The sheath member (1) is provided with several retaining blocks (14) at the conterminous site of the slit slot (12) and the pocket (13). The upper edge of the slide member (2) is connected with a pushing portion (22) by a slide block (21). The slide member (2) is fixed between the convex buckles on the back end of the slide slot (2) and the retaining block (14), in the sheath member (1). The flexible tube (5) is connected to the back end of the slide member (2), and the distal end of which is connected with a coupler (51). In use, the pushing portion (22) is advanced to force the back end of the slide member (2) against the convex buckles (121) in the vicinity of the front end of the slide slot (12) for action of injection or suction. After use, the pushing portion (22) is pushed back through the retaining block (14) between the slide slot (12) and the receptacle (13). Then the pushing portion (22) is pressed into the receptacle (13) to allow the retaining block (14) against the upper edge of the hand pushing portion (22), for the purpose of safety and being unavailable for further use.

Description

 One-time safety butterfly needle structure

 Surgery

 The invention relates to a single-use safety butterfly needle structure, in particular to a single-use safety butterfly needle structure which is safe, easy to operate, and does not need to worry about being used for secondary use. Background

 Butterfly needles are generally composed of a needle and a needle cover, where the needle extends a number of patches on the side of a body, and an injection needle is inserted in the front end of the body, and the needle cover is a cylindrical shape. And the bottom of the needle cover is provided with a receiving hole; when using this common needle needle protection method and structure of the needle, the needle cover must be removed from the needle first, and then the needle of the needle is inserted into the injection part of the patient. After using this kind of butterfly needle, the needle cap must be put back on the needle, so it is easy to cause stab wounds to the medical staff and cause infection.

 It can be seen that the above-mentioned common articles still have many shortcomings, which are not a good design, and need to be improved. In view of the various shortcomings derived from the above-mentioned conventional technology, the inventor of this case has been eager to improve and innovate. After years of painstaking and meticulous research, he finally successfully developed and completed the one-time safety butterfly needle structure. Summary of the invention

 An object of the present invention is to provide a single-use safety butterfly needle structure which is easy to operate and safe.

 A secondary object of the present invention is to provide a single-use safety butterfly needle structure without having to worry about being used for secondary use.

 In order to achieve the above object, the one-time safety butterfly needle structure of the present invention includes a protection kit. The protection kit is provided with a chute, and an accommodating portion is provided on the rear side of the chute, and the chute is close to the front end and the rear end. Convex buckles are respectively provided, and the protection kit is provided with a plurality of non-return stoppers at a position where the chute meets the accommodation portion and a periphery of the accommodation portion;

 A sliding part, the upper edge of the sliding part is connected with a hand pushing part by a slider, and the sliding part is sleeved in the protection kit and fixed between the convex buckle at the rear end of the sliding groove and the check block;

 A hose is connected with a connector at the end, and the connector is connected with a syringe or drip cannula for general injection or extraction.

 The advantages of the present invention are as follows-after the single injection or extraction with the safety butterfly needle structure provided by the present invention is completed, only the hand pushing part is required to

1 Confirm this Push back and pass the backstop between the chute and the accommodation part, and then push the hand pushing part down into the accommodation part, then the backstop block set on the periphery of the accommodation part can abut against the hand pushing part The upper edge enables the one-time safety butterfly needle structure provided by the present invention to use the periphery of the receiving portion and the non-return stop block provided at the connection point between the chute and the receiving portion as two protection devices to prevent re-use, thereby achieving safety And there is no need to worry about being used for the purpose of secondary use. Drawings ¾

 FIG. 1 is an exploded perspective view of the structure of a safety butterfly needle for a single use according to the present invention;

 FIG. 1A is an exploded perspective view of the first embodiment of the safety butterfly needle structure for a single use; FIG.

 FIG. 1B is an exploded perspective view of the second embodiment of the single-use safety butterfly needle structure;

 FIG. 1C is an exploded perspective view of the third embodiment of the single-use safety butterfly needle structure;

 FIG. 1D is an exploded perspective view of the fourth embodiment of the single-use safety butterfly needle structure; FIG.

 FIG. 1E is a side sectional view of a fifth embodiment of the single-use safety butterfly needle structure;

 FIG. 1F is an exploded perspective view of the sixth embodiment of the single-use safety butterfly needle structure;

 2 is an exploded perspective view of the seventh embodiment of the single-use safety butterfly needle structure;

 3 is an exploded perspective view of the eighth embodiment of the single-use safety butterfly needle structure;

 FIG. 4 is an exploded perspective view of the ninth embodiment of the single-use safety butterfly needle structure; FIG.

 5 is a perspective view of a tenth embodiment of the single-use safety butterfly needle structure;

 FIG. 5A is a perspective view of the 11th embodiment of the single-use safety butterfly needle structure; FIG.

 5B is a perspective view of a twelfth embodiment of the single-use safety butterfly needle structure;

 FIG. 6 is an exploded perspective view of the thirteenth embodiment of the single-use safety butterfly needle structure; FIG.

 FIG. 7 is an operation schematic diagram of the fourteenth embodiment of the single-use safety butterfly needle structure; FIG.

 FIG. 8 is an operation schematic diagram of the fifteenth embodiment of the single-use safety butterfly needle structure; FIG.

 9 is a perspective view of a sixteenth embodiment of the single-use safety butterfly needle structure;

 FIG. 10 is an operation schematic diagram of the seventeenth embodiment of the single-use safety butterfly needle structure; FIG.

 FIG. 11 is a perspective view of the eighteenth embodiment of the single-use safety butterfly needle structure; FIG.

 12 is a perspective view of a nineteenth embodiment of the single-use safety butterfly needle structure;

 13 is a perspective view of a 20th embodiment of the single-use safety butterfly needle structure;

 FIG. 13A is a perspective view of a 21st embodiment of the single-use safety butterfly needle structure;

 FIG. 14 is an exploded perspective view of the twenty-second embodiment of the single-use safety butterfly needle structure; FIG.

FIG. 14A is an exploded perspective view of the twenty-third embodiment of the single-use safety butterfly needle structure; FIG. 15 is an exploded perspective view of the twenty-fourth embodiment of the single-use safety butterfly needle structure;

 16 is an exploded perspective view of the 25th embodiment of the single-use safety butterfly needle structure;

 FIG. 17 is an exploded perspective view of the 26th embodiment of the single-use safety butterfly needle structure; FIG.

 18 is an exploded perspective view of the 27th embodiment of the single-use safety butterfly needle structure; and

 Fig. 19 is an exploded perspective view of the 28th embodiment of the single-use safety butterfly needle structure. detailed description

 Please refer to the following detailed description of a preferred embodiment of the present invention and the accompanying drawings for a further understanding of the technical contents of the present invention and its effects.

 Please refer to FIGS. 1, 1A and 1E. The single-use safety butterfly needle structure provided by the present invention mainly includes:

 A protection kit 1 has one or two butterfly blades 11 extending from the front end to the side and the protection kit 1 is provided with a chute 12, and a receiving portion 13 is provided on the rear side of the chute 12. There are convex buckles 121 near the front end and the rear end of the chute 12, respectively, and the protection kit 1 is provided with a number of non-return stops at the junction of the chute 12 and the accommodating part 13 and the periphery of the sac 13 Block 14, in addition, the protection kit 1 is tapered forward from the convex buckle 121 at the rear end of the chute 12;

 A sliding member 2, the upper edge of the sliding member 2 is connected with a slider 21 by a slider 21;

 A hose 5 is connected with a connector 51 at the end. The connector 51 can be connected with a general injection or extraction syringe or a drip cannula, and the connector 51 can also be connected with a special threaded syringe. Instead of a screwed screw joint 52, a syringe can be connected to the back of the hose 5, and an injection needle 23 is provided in the syringe, and an outer ring sleeve 27 is sleeved on the outer edge of the injection needle 23.

The sliding member 2 is set in the protection kit 1 and is fixed between the convex buckle 121 and the check block 14 at the rear end of the chute 12. When the single-use safety butterfly needle structure provided by the present invention is used, the hand The pushing part 22 pushes forward, drives the sliding member 2 forward and leaves the convex buckle 121 near the rear end of the sliding groove 12, moves to the front end of the sliding groove 12, and pushes the sliding member 2 to the convex buckle of the sliding groove 12 near the front end. Before 121, the rear end of the sliding member 2 is resisted by the convex buckle 121 of the chute 12 near the front end and cannot be moved backward temporarily. At this time, the injection or extraction operation can be performed. When the safety butterfly needle provided by the present invention is used once After the structure injection or extraction is completed, it is only necessary to push the hand pushing portion 22 backward and pass the check block 14 between the chute 12 and the containing portion 13, and then press the hand pushing portion 22 downward into the containing portion 13. In other words, the non-return stopper 14 provided on the peripheral edge of the accommodating portion 13 can abut against the upper edge of the hand pushing portion 22, so that the single-use safety butterfly needle structure provided by the present invention uses the peripheral edge of the accommodating portion 13 and the chute 12 and The non-return stop 14 provided at the adjoining place of the accommodating part 13 serves as two protection devices In order to prevent it from being used again, to achieve safety and no need to worry about being used for secondary use, in addition, the protection kit 1 may not be designed to be tapered forward from the convex buckle 121 at the rear end of the chute 12, The protection kit 1 rises upward from the convex buckle 121 at the rear end of the chute 12; further, please refer to FIG. 1F. The convex buckle 121 and the chute 12 on the protection kit 1 are located where the receiving portion 13 meets. The non-return stopper 14 can also be disposed on the outer peripheral edge of the protection kit 1 and can be connected to the bottom of the hand pushing portion 22.

 Please refer to FIG. 1B. In the single-use safety butterfly needle structure provided by the present invention, the protection kit 1 may not be provided with a check block 14 and a convex buckle 121, and the protection kit 1 may not be used by the rear end of the chute 12. The convex buckle 121 is designed to be tapered forward, and a protrusion 221 is provided at the bottom of the end of the push part 22 of the sliding member 2. When the sliding member 2 is combined with the protection kit 1, the protrusion 221 In order to generate friction due to surface contact with the outer wall of the protection kit 1, the sliding member 2 is difficult to be displaced. When the single-use safety butterfly needle structure provided by the present invention is to be used, it is only necessary to press the front end of the hand pushing portion 22 to make the projection 221 is tilted upward with the slider 21 as the axis, so that a gap is created between the projection 221 and the outer wall surface of the protection kit 1, and the sliding part 2 can be moved forward and backward by pushing the hand pushing part 22, and once provided by the present invention After using the safety butterfly needle structure, it is only necessary to move the sliding member 2 to the end of the sliding groove 121 so that the projection 221 falls into the accommodation portion 13. At this time, even if the hand pushing portion 22 is pressed, the projection cannot be made. The block 221 is separated from the accommodation portion 13 and reaches To the purpose of avoiding secondary use.

 Please refer to FIG. 1C and FIG. ID. In the single-use safety butterfly needle structure provided by the present invention, the front end of the chute 12 may be inwardly contracted, and the projection 12 is not provided at a position near the front end of the chute 12, so When the sliding member 2 moves to the front end of the chute 12, the slider 21 is forced by the wall surface of the retracted chute 12, so that the sliding member 2 can be fixed to the front end of the protection kit 1 to facilitate injection or extraction by the injection needle 23. In addition, in the single-use safety butterfly needle structure provided by the present invention, an opening can be set at the bottom of the front end of the protection kit 1 to avoid the thickness of the outer wall of the protection kit 1 of the injection needle 23 when extracting or injecting. Influence, and form an excessively large angle with the injection part of the patient, causing inconvenience in injection or extraction.

Please refer to FIG. 2, FIG. 3 and FIG. 4. In the single-use safety butterfly needle structure provided by the present invention, butterfly pieces 11 are provided on both sides of the protection kit 1, and the sliding groove 12 may be provided at a position near the front end without being convex. A buckle 121 is provided on the butterfly piece 11 on one or both sides of the protective kit 1. When the hand pushing portion 22 is pushed to the front end of the chute 12, the butterfly piece 11 can be bent to bring the stopper 111 against the hand. The back side of the pusher 22 prevents the hand pusher 22 from moving backward. At this time, the injection needle 23 at the front end of the slider 2 can be inserted into the injection section of the patient for injection or extraction. Furthermore, the pusher 22 can also be pushed on the hand. A convex portion 221 is extended outward on one or both sides of 22, and a buckle hole 112 is provided on the butterfly piece 11 of the protection kit 1 for the convex portion 221 to be fastened, or the A recessed portion 222 is respectively set on one or both sides, and a buckle 113 capable of buckling into the recessed portion 222 is provided on the butterfly piece 11 of the protection kit 1, and the protruding portion 221 and the buckle are provided. When the hole 112 or the recess 222 and the buckle 113 are engaged with each other, so that when the hand pushing portion 22 is pushed to the front end of the chute 12, the butterfly piece 11 can be bent to abut against the rear side of the hand pushing portion 22 to prevent the hand pushing portion 22 from facing Step back to perform injection or extraction.

 Please refer to FIG. 5, FIG. 5A and FIG. 6. In the single-use safety butterfly needle structure provided by the present invention, the chute 12 may be provided near the rear end without protruding buckles 121, and extends on one or both sides of the protection kit 1. A positioning portion 15 is provided, and a positioning piece 151 is provided on the positioning portion 15 to connect the connecting member 152 with the hand pushing portion 22 of the sliding member 2 so that the single-use safety butterfly needle structure provided by the present invention is used before the sliding The moving member 2 does not slide forward and cause the injection needle 23 to penetrate the protection kit 1 and cause danger. When the single-use safety butterfly needle structure provided by the present invention is used, it is only necessary to push the pusher 22 with a strong hand forward. That is, the connecting member 152 can be broken and the sliding member 2 can be moved to the front end of the chute 12 for injection or extraction. In addition, the single-use safety butterfly needle structure provided by the present invention can also be provided without the position portion 15 and positioning. The piece 151 directly connects the push part 22 and the protection kit 1 with a connecting member 122. Furthermore, the connecting member 152 may also be replaced by glue or other connecting components; and the one-time safety butterfly pin structure provided by the present invention Before use, a cover 3 can also be covered on the hand pushing portion 22 of the sliding member 2, and the front end and the rear end of the cover 3 respectively have a cover body 31 that can be placed in the slide groove 12 and the accommodation groove 13. To prevent the sliding member 2 from sliding.

 Please refer to FIG. 5B. In the single-use safety butterfly needle structure provided by the present invention, a side of the hand pushing portion 22 can be provided with a fixing piece 18, and a groove 181 is provided at the bottom of the fixing piece 18, so when sliding When the moving part 2 is pushed to the front edge of the protection kit 1 by using the groove 12, the fixing sheet 18 or the butterfly sheet 11 of the protection kit 1 can be bent, and the butterfly sheet 11 can be placed in the groove 181 to avoid extraction or injection. At this time, the sliding member 2 does not move backward, which causes difficulties in injection or extraction.

Please refer to FIGS. 7, 8 and 9 and FIG. 10. In the single-use safety butterfly needle structure provided by the present invention, the upper end of the butterfly sheet 11 may be connected with an adhesive portion 114 at the side edge, or an adhesive sheet may be provided at the bottom of the butterfly sheet 11. The adhesive part 114 is covered with a film 115. When the injection needle 23 at the front end of the sliding member 2 is inserted into the patient's injection part, the film 115 can be torn apart, and then the adhesive part 114 is connected to the butterfly sheet 11. The axis is flipped and adhered to the side of the injection part of the patient for the purpose of positioning the single-use safety butterfly needle structure provided by the present invention during injection or extraction; in addition, the adhesive part 114 may also be used. It is located below the butterfly piece 11 and is connected to another adhesive portion 114 at the side edge of the adhesive portion 114. When it is used, it is only necessary to open the lower adhesive portion 114 with the connecting point as the axis. In addition, a bending piece 117 can also be provided on the butterfly piece 11 on the side of the protection kit 1, and a number of perforations 118 are provided on the end of the bending piece 117, and a buckle is provided on the other butterfly piece 11. Hook 119, the bending piece 117 is passed around the injection part (hand or foot) of the patient, and then 118 is snapped into the hook 119, and different perforations 118 can be snapped into the hook 119, and the distance surrounded by the bending piece 117 can be adjusted to achieve the positioning of the one-time safety butterfly needle structure provided by the present invention. Purpose. In addition, both the hook 119 and the perforation 118 may be replaced by a devil. Please refer to FIG. 11 and FIG. 12. In the single-use safety butterfly needle structure provided by the present invention, the protection kit 1 may not be tapered forward from the convex buckle 121 at the rear end of the chute 12, and the chute of the protection kit 1 12 does not include a receiving portion 13 at the rear end, and a non-return stopper 14 is provided on the outside of the chute 12 near the end. Therefore, after using the safety butterfly needle structure provided by the present invention, only the hand pushing portion 22 Push backward and pass the check block 14 to block the hand pushing part 22 with the check block 14 so that the sliding member 2 cannot slide forward. In addition, it can also be at the rear end of the slide slot 12 of the protection kit 1. A placing portion 16 is set on the side edge, and a plurality of check blocks 14 are provided on the inner edge of the placing portion 16. When the one-time safety butterfly needle structure provided by the present invention is used, only the sliding member 2 needs to be pushed Go to the rear end of the chute 12 and turn the hand pushing portion 22 into the placing portion 16. The non-return stopper 14 can be used to block the hand pushing portion 22 so that the hand pushing portion 22 can no longer be turned out.

 Please refer to FIG. 13 and FIG. 13A. In the single-use safety butterfly needle structure provided by the present invention, the rear end of the chute 12 is also not provided with a convex buckle 121, a check block 14 and an accommodating portion 13, and the chute 12 A fixing block 17 with a fastener 171 extends upward from one side of the rear end, and a fastener 171 is provided on the hand pushing portion 22 of the sliding member 2 so as to be able to interlock with the fastener 171 on the fixing block 17; The fastener 171 may not be provided on the block 17, and the fastener 223 on the hand pushing part 22 is replaced by a non-return stopper block 14. When the one-time safety butterfly needle structure provided by the present invention is used, the By pushing the hand pushing portion 22 backward, the non-return stopper 14 is buckled against the rear side wall surface of the fixing block 17, so that the single-use safety butterfly needle structure provided by the present invention can be prevented from being used twice by a person.

 Please refer to FIG. 14 and FIG. 14A. In the single-use safety butterfly needle structure provided by the present invention, one or more hooks that can be buckled against the inner edge of the protection kit 1 can be extended downward at the rear end of the hand pushing portion 22 28. After the extraction or injection with the safety butterfly needle structure provided by the present invention is completed, the slider 21 may be pushed to the rear end of the protection kit 1, so that the hook 28 at the rear end of the slider 21 is pressed against the protection kit 1. The inner edge of the slider prevents the slider 21 from driving the slider 2 to move forward again to avoid danger caused by the injection needle 23 penetrating out of the protection kit 1. In addition, in the single-use safety butterfly needle structure provided by the present invention, the A hook 224 extends downward from one or both sides of the rear end of the hand pushing portion 22, and one or two sides of the chute 12 of the protection kit 1 are provided with a plurality of grooves 123, and are connected to the chute of the protection kit 1. 12 A perforation 124 is provided on one or both sides near the end. When the safety butterfly needle structure provided by the present invention is used once, the piercing hook 224 can be placed in the groove 123 to avoid slipping when extracting or injecting. Move 2 to drive the injection needle 23 is displaced, which causes difficulty in extraction or injection, and after the single-use safety butterfly needle structure provided by the present invention is used, it is only necessary to push the sliding member 2 to the end of the sliding groove 12 so that the hook 224 falls Into the perforation 124, the sliding member 2 can be fixed at the end of the chute 12, so as to prevent the single-use safety butterfly needle structure provided by the present invention from being used twice by a person.

Please refer to FIG. 15 and FIG. 16. In the single-use safety butterfly needle structure provided by the present invention, a hose 5 is connected to The joint 51 behind the sliding member 2 can also be replaced by an injection needle 23, and the injection needle 23 is inserted behind a sliding member 2, and a slider 21 is provided on the sliding member 2 to connect a hand pushing portion 22 Furthermore, the sliding member 2 is nested in a protection kit 1. The protection kit 1 is provided with a chute 12, and a receiving portion 13 is provided on the rear side of the chute 12, and the chute 12 is close to the front end and the rear. Protruding buckles 121 are respectively provided at the ends, and a plurality of non-return stoppers 14 are provided at the protection package 1 at the junction of the chute 12 and the accommodation portion 13 and at the periphery of the accommodation portion 13. In addition, the protection package 1 The convex buckle 121 at the rear end of the chute 12 is tapered forward. Furthermore, the structure of the sliding member 2 and the protection kit 1 described above can also be as shown in FIGS. 1A, 1B, 1F, 5, 5A, 6, 11, 12 , 13, 13A, 14 and FIG. 14A, and neither side of the protection kit 1 is provided with a butterfly piece 11, a fixing piece and a hand-held portion; further, in the single-use safety butterfly needle structure provided by the present invention, the injection The outer edge of the needle 23 is an outer ring sleeve 27 made of a flexible soft rubber material. When the single-use safety bow tie provided by the present invention is provided, When an injection needle or an extraction operation is performed, when the injection needle 23 is inserted into a patient's injection section or a test tube, the outer sleeve 27 is blocked by the skin or the test tube and retracts, and the injection needle 23 is inserted into the patient's injection section or test tube, and When the injection needle 23 is pulled out of the patient's injection section after extraction or injection is completed, the outer ring sleeve 27 has elastic characteristics, so that the outer ring sleeve 27 can be recoated on the outer edge of the injection needle 23, and the outer ring sleeve The place punctured by the injection needle 23 on 27 is also tightly closed due to the elasticity of the outer ring sleeve 27 itself, which can prevent the risk of infection from the blood remaining on the injection needle 23, and it can also be used in the protection kit 1 An elastic rubber material 29 is provided at the front opening to replace the function of the outer ring sleeve 27.

 Referring to FIG. 17, the single-use safety butterfly needle structure provided by the present invention mainly includes:

 A butterfly needle main body 6, the front end of the butterfly needle main body 6 is bent downward and an injection needle 23 is inserted, and a butterfly piece 11 is respectively extended outward from the lower edge of the two sides of the butterfly needle body 6, and one of the butterfly pieces 11 on one side The side edge is provided with one or more hooks 62, and the front end of each butterfly piece 11 is provided with a half arc cover 63, and the rear end of the butterfly needle body 6 is connected with a hose 5, and

 A needle cover 7 is set on the outer edge of the injection needle 23 of the butterfly needle body 6.

When the safety butterfly needle structure provided by the present invention is to be used for extraction or injection, the needle cover 7 on the butterfly needle body 6 only needs to be removed, and then the butterfly blades 11 on both sides are pulled upward to enable medical personnel. You can pinch the butterfly piece 11 and insert the injection needle 23 into the patient's injection part to perform the extraction or injection operation. After the injection or extraction operation is completed, you only need to bend the butterfly pieces 11 on both sides downward and use The hooks 62 on the butterfly piece 11 on one side fasten the other butterfly piece 11, and the half-arc cover 63 at the front end of the two butterfly pieces 11 covers the injection needle 23 due to the fastening of the butterfly pieces 11 on both sides. It can prevent the injection needle from being exposed and cause danger. In addition, the butterfly piece 11 on the 6-side of the butterfly needle body may not be provided with a hook 62, and the bottom part of the two butterfly pieces 11 or the two half-arc covers 63 can be connected to each other. In addition, this structure can also be connected to the rear end of the hose 5 for connection with the test tube, The outer edge of the shooting needle 23 is covered with an outer ring sleeve 27 made of flexible soft rubber material. Therefore, during the extraction operation, the butterfly needle at the front end of the hose 5 can be inserted into the patient's injection section (including extraction Blood, ascites ... or other sampling), and then insert the injection needle 23 of this structure into the test tube. At this time, the outer sleeve 27 is blocked by the test tube and backwards, and the injection needle 23 is inserted into the test tube. After the extraction is completed, The medical staff can bend the butterfly pieces 11 on both sides down and pull out the injection needle 23 from the test tube, so that the butterfly pieces 11 on both sides are fastened to each other by the hooks 62, so that the half of the front end of the two butterfly pieces 11 The arc cover 63 covers the injection needle 23 to prevent the injection needle from being exposed, and the outer ring sleeve 27 is punctured by the injection needle 23, which is also tight due to the elasticity of the outer ring sleeve 27 itself. Therefore, it is possible to prevent the blood remaining on the injection needle 23 from being exposed to the air and causing a risk of infection.

 Referring to FIG. 18, the single-use safety butterfly needle structure provided by the present invention mainly includes:

 A butterfly needle body 6 is provided with an injection needle 23 inserted at the front end thereof, and a butterfly piece 11 is respectively extended outward from the lower edge of one or both sides of the butterfly needle body 6, and the rear of the butterfly needle body 6 A hose and a needle cover 7 are connected to the side, and the needle cover 7 is sleeved on the outer edge of the injection needle 23 of the butterfly needle body 6, and further,

 A protective sleeve 61 is set on the outer edge of the butterfly needle body 6, and the side edge of the protective sleeve 61 is provided with an opening 62 through which the butterfly sheet 11 can pass. The front edge of the opening 62 is tapered. Design, and a position of the opening 62 near the rear side is provided with a check block 14.

 As described above, before the single-use safety butterfly needle structure provided by the present invention is used, the protective sleeve 61 is designed to press the butterfly piece 23 of the butterfly needle body 6 with the design of the shrinking front end piece, so that the protective sleeve 61 does not move arbitrarily. When the safety butterfly needle structure provided by the present invention is used once, the needle cover 7 is removed from the butterfly needle body 6 and then the extraction and injection operations are performed. After the extraction or injection is completed, the protective sleeve 61 is used. Moving forward, the butterfly piece 11 is passed through the check block 14 of the opening 62 of the protective cover 61 to prevent the single-use safety butterfly needle structure provided by the present invention from being used twice.

 Referring to FIG. 19, in the single-use safety butterfly needle structure provided by the present invention, a bottom portion of the protective sleeve 61 can be recessed upward with a sliding portion 63, and a rear side of the sliding portion 63 is recessed with a receiving portion upward. A plurality of non-return stops are provided at positions where the sliding portion 63 and the accommodating portion 64 are connected. Therefore, after the single-use safety butterfly needle structure provided by the present invention is used, only the protective sleeve 61 is required. Move the front edge of the butterfly needle body 6, and then press the protective sleeve 61 downward, or pull the butterfly piece 11 upward, so that the butterfly piece 11 is accommodated in the accommodating portion 64, and the The blocking prevents the butterfly piece from being detached from the accommodating portion, so as to prevent the single-use safety butterfly needle structure provided by the present invention from being used twice.

In addition, the structures of the various embodiments of the single-use safety butterfly needle structure provided by the present invention can also be applied. Used for various types of syringes (such as special syringes for dialysis, blood collection devices, general syringes or various types of nozzles (such as drip nozzles)).

 The above detailed description is a specific description of a feasible embodiment of the present invention. This embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change without departing from the technical spirit of the present invention should be included in The patent scope of this case.

Claims

Uncle stab requirements_ £ 1. A single-use safety butterfly pin structure, comprising:-a protection kit, one or two butterfly blades extending from the bottom of the front end of the protection kit to the side, and a slide slot provided on the protection kit, the slide An accommodating portion is provided on the rear side of the groove, and convex buckles are respectively provided near the front end and the rear end of the chute. A non-return stopper, and the protection kit is tapered forward from the convex buckle at the rear end of the chute;  A sliding member, the upper edge of the sliding member is connected with a hand pushing part by a slider, and an injection needle is inserted at the front end of the sliding member;  A hose, the end of which is connected with a connector, which is connected with a syringe or drip cannula for general injection or extraction;.  The sliding member is sleeved in the protection kit and fixed between the convex buckle at the rear end of the sliding groove and the check block.  2. The single-use safety butterfly needle structure according to claim 1, wherein the joint is also replaced by a screw joint which can be screwed with a special syringe with a thread.  3. The single-use safety butterfly needle structure according to claim 1, characterized in that: a syringe can be connected behind the hose, and an injection needle is provided in the syringe, and an outer edge of the injection needle is sleeved with a Outer ring sleeve.  4. The single-use safety butterfly pin structure according to claim 1, wherein the protection kit does not use a tapered design forward from the convex buckle at the rear end of the chute, so that the protection kit extends behind the chute. The raised end buckles upward.  5. The single-use safety butterfly needle structure according to claim 1, characterized in that: the non-return stopper provided at a position where the convex buckle and the chute on the protection kit are connected with the accommodating part, can also be provided on the protection kit The outer peripheral edge of the body, and can be in contact with the bottom of the hand pushing part.  6. The single-use safety butterfly needle structure according to claim 1, wherein the protection kit does not need to be provided with a non-return block and a convex buckle, and the protection kit does not use the convex buckle at the rear end of the chute. The front has a tapered design, and a protrusion is provided at the bottom of the end of the push part of the sliding member.  7. The single-use safety butterfly needle structure according to claim 1, wherein the front end of the chute can be inwardly contracted, and no convex buckle is provided at a position near the front end of the chute.  8. The single-use safety butterfly needle structure according to claim 1, characterized in that: the bottom of the front end of the protection kit can be provided with an opening. 9. The single-use safety butterfly needle structure according to claim 1, wherein: Both sides are provided with butterfly pieces, and the chute can be provided with no convex buckle at the position near the front end, and a stopper is provided on the butterfly piece on one side or both sides of the protection kit.  10. The single-use safety butterfly needle structure according to claim 1, characterized in that: butterfly blades are provided on both sides of the protection kit, and the sliding groove is not provided with a convex button at the position near the front end, but is provided at the hand pushing portion. A convex portion is respectively extended outward at one side or both sides, and a buckle hole is formed on the butterfly piece of the protection kit for the convex portion to buckle.  11. The single-use safety butterfly needle structure according to claim 1, characterized in that: both sides of the protection kit are provided with butterfly blades, and a convex buckle can also be provided at the position close to the front end of the slide groove, and the hand pushing portion A concave portion is respectively provided on one or both sides of the protective cover, and a buckle block that can be inserted into the concave portion is provided on the butterfly piece on one or both sides of the protection kit.  12. The single-use safety butterfly needle structure according to claim 1, wherein the position of the chute close to the rear end can be provided without a convex buckle, and a positioning portion is extended on one or both sides of the protection kit, and the positioning A positioning piece is arranged on the part to connect the connecting part with the hand pushing part of the sliding part.  13. The single-use safety butterfly needle structure according to claim 12, characterized in that: the positioning part and the positioning piece may not be set, and the hand pushing part and the protection kit are directly connected by a connecting member, and the connecting member may also be glued Glue or other connecting components.  14. The single-use safety butterfly needle structure according to claim 1, characterized in that: one side of the hand pushing part is provided with a fixing piece, and a groove is formed at the bottom of the fixing piece.  15. The single-use safety butterfly needle structure according to claim 1, characterized in that: the position of the sliding groove near the rear end can be provided without a convex buckle, and a cover is used to cover the hand pushing part of the sliding member, In addition, a cover body is respectively extended at the front end and the rear end of the cover and can be placed in the sliding groove and the receiving groove.  16. The single-use safety butterfly needle structure according to claim 1, characterized in that: the upper end of the butterfly sheet can be connected with an adhesive portion at a side edge, and the adhesive portion is provided with a film covering.  17. The single-use safety butterfly needle structure according to claim 16, wherein the adhesive portion can also be disposed at the bottom end of the butterfly sheet, and the adhesive portion is provided with a film covering.  18. The single-use safety butterfly needle structure according to claim 1, characterized in that: the lower end of the butterfly sheet can also be provided with an adhesive portion, and the adhesive portion can be connected to another adhesive portion by a side edge.  19. The single-use safety butterfly needle structure according to claim 1, wherein: both sides of the front end of the protective sleeve are extended with butterfly pieces, wherein one side of the butterfly piece is provided with a bent piece, and the bent piece There are several perforations at the end, and a hook on the other butterfly. 20. The single-use safety butterfly needle structure according to claim 19, wherein the hook and the perforation can be replaced by a devil. 21. The single-use safety butterfly needle structure according to claim 1, wherein the protection kit does not need to be tapered forward from the convex buckle at the rear end of the chute, and the rear end of the chute of the protection kit is not required. The accommodating portion is provided with a non-return stopper on the outside of the chute near the end.  22. The single-use safety butterfly needle structure according to claim 21, wherein the non-return stopper can also be disposed at the outer peripheral edge of the protection kit and can be connected to the bottom of the hand pushing portion.  23. The single-use safety butterfly pin structure according to claim 1, wherein the protection kit does not need to be tapered forward from the rear end of the chute, and the rear end of the chute of the protection kit is not An accommodating portion is provided, and a accommodating portion is provided on the side edge of the rear end of the chute of the protection kit, and a plurality of check blocks are provided on the inner edge of the accommodating portion.  24. The single-use safety butterfly needle structure according to claim 1, wherein the protection kit does not shrink forward from the convex buckle at the rear end of the chute, and there is no convex buckle or stop at the rear end of the chute. The return block and the accommodating part, and a fixing block with a fastener is extended upward at a side of the rear end of the chute, and a hand fastener of the sliding part is provided with a fastener that can be fastened with the fastener on the fixing block. .  25. The single-use safety butterfly needle structure according to claim 24, wherein the fixing block may be provided without a fastener, and the fastener on the hand pushing part is replaced by a non-return stopper.  26. The single-use safety butterfly needle structure according to claim 1, wherein the rear side of the chute may not be provided with a receiving portion, and the protection kit may not be tapered forward from the convex buckle at the rear end of the chute, and The rear end of the slider is a hook that can be extended downward to buckle against the inner edge of the rear side of the protection kit.  27. The single-use safety butterfly needle structure according to claim 1, wherein the protection kit does not shrink forward from the convex buckle at the rear end of the chute, and one or both sides of the rear end of the hand pushing portion A through hook is extended downward, and one or two sides of the chute of the protection kit are provided with a plurality of grooves, and a perforation is provided on one or both sides of the chute of the protection kit near the end.  28. The single-use safety butterfly needle structure according to claim 1, wherein the connector can also be replaced by an injection needle, and the injection needle is inserted behind a sliding member, and the sliding member is provided on the sliding member. A sliding block is connected to a hand pushing portion. Furthermore, the sliding member is sleeved in a protection kit. The protection kit is provided with a sliding groove, and a receiving portion is provided on the rear side of the sliding groove, and the sliding groove is close to the front end. There are convex buckles at the rear and rear ends, and a number of non-return stoppers are provided at the protection package at the junction of the chute and the accommodating part and at the periphery of the accommodating part. In addition, the protection kit is from the rear end of the chute The convex buckle is tapered forward.  29. The single-use safety butterfly needle structure according to claim 28, wherein the front end of the chute can be tapered, and no convex buckle is provided at the position near the front end of the chute. 30. The single-use safety butterfly needle structure according to claim 28, wherein: the chute is close to The position of the rear end may not be provided with a convex buckle, and a cover is used to cover the push part of the sliding member, and a cover body is respectively extended at the front end and the rear end of the cover and can be placed in the chute and the accommodation slot.  31. The single-use safety butterfly pin structure according to claim 28, wherein the protection kit does not need to be tapered forward from the convex buckle at the rear end of the chute, and the rear end of the chute of the protection kit may not be provided. The accommodating part, so that the protection kit rises upward from the convex buckle at the rear end of the chute. - 32. The single-use safety butterfly pin structure according to claim 28, wherein the protection kit does not shrink forward from the convex buckle at the rear end of the chute, and the rear end of the chute of the protection kit is not provided. The accommodating portion is provided with a accommodating portion at a side edge of the rear end of the chute of the protection kit, and a plurality of non-return stoppers are provided at an inner edge of the accommodating portion.  33. The single-use safety butterfly needle structure according to claim 28, wherein the protection kit does not shrink forward from the convex buckle at the rear end of the chute, and there is no convex buckle or stop at the rear end of the chute. The return block and the accommodating part, and a fixing block with a fastener is extended upward at a side of the rear end of the chute, and a hand pushing part of the sliding part is provided with a fastener that can be engaged with the fastener on the fixing block .  34. The single-use safety butterfly needle structure according to claim 33, characterized in that: a non-return stopper can be replaced on the hand pushing part instead of the fastener.  35. The single-use safety butterfly needle structure according to claim 28, characterized in that: an outer ring sleeve is provided on the outer edge of the injection needle or an elastic soft rubber is provided at the front opening of the protection kit.  36. The single-use safety butterfly pin structure according to claim 28, wherein the protection kit does not need to be provided with a check block and a convex buckle, and the protection kit is not directed from the convex buckle at the rear end of the chute. The front is tapered, and the rear end of the slider is a hook that can be extended downward to buckle the inner edge of the rear side of the protection kit.  37. The single-use safety butterfly needle structure according to claim 28, wherein the protection kit does not need to be provided with a non-return stopper and a convex buckle, and the protection kit is not directed from the convex buckle at the rear end of the chute. The front has a tapered design, and a protrusion is provided at the bottom of the end of the push part of the sliding member.  38. The single-use safety butterfly pin structure according to claim 28, wherein the protection kit does not shrink forward from the convex buckle at the rear end of the chute, and one or both sides of the rear end of the hand pushing portion A through hook is extended downward, and one or two sides of the chute of the protection kit are provided with a plurality of grooves, and a perforation is provided on one or both sides of the chute of the protection kit near the end.  39. The single-use safety butterfly needle structure according to claim 28, wherein the position of the chute close to the rear end may be provided without a convex buckle, and a positioning portion is extended on one or both sides of the protection kit, and the positioning A positioning piece is arranged on the part to connect the connecting part with the hand pushing part of the sliding part. 40. The single-use safety butterfly needle structure according to claim 39, wherein: The position part and the positioning piece are directly connected with the push part and the protection kit by a connecting piece, and the connecting piece can also be replaced by glue or other connecting components.  41. The single-use safety butterfly needle structure according to claim 1, wherein: the connector connected to the end of the hose can also be replaced by a butterfly needle, the front end of the butterfly needle is bent down and an injection needle is inserted, and The outer edge of the injection needle is covered with an outer ring sleeve made of flexible soft rubber material, and butterfly blades are respectively extended outward from the lower edges of the two sides of the butterfly needle, and one side of the butterfly blade is provided with One or more hooks are provided, and a needle cover is sleeved on the front edge of the butterfly needle.  42. The single-use safety butterfly needle structure according to claim 41, characterized in that: the butterfly piece on one side of the butterfly needle body can be provided without a hook, and can be connected to the bottom of the two butterfly pieces or the two half-arc covers. There are fasteners or adhesives that can be connected to each other.  43. A single-use safety butterfly pin structure, comprising:  A butterfly needle body, an injection needle is inserted at the front end of the butterfly needle body, and the outer edge of the injection needle is covered with an outer ring sleeve made of elastic soft rubber material, and is located on one side of the butterfly needle body or A butterfly piece extends from the lower edges of the two sides outwards, and a hose is connected to the rear side of the butterfly needle body;  A needle cover, the needle cover is sleeved on the outer edge of the injection needle of the butterfly needle body, and  A protective cover is sleeved on the outer edge of the butterfly needle body, and the side edge of the protective cover is provided with an opening through which the butterfly piece can pass out. The front edge of the opening has a tapered design, and the opening A backstop is located near the rear side;  The protective cover is designed to press the butterfly piece of the butterfly needle body 6 in a contracted design with an open front end piece, so that the protective cover does not move arbitrarily.  44. The single-use safety butterfly needle structure according to claim 43, wherein: the bottom of the protective sleeve is recessed upward with a sliding portion, and the rear side of the sliding portion is recessed with a receiving portion upward. And, a plurality of check blocks are provided at positions where the sliding portion is in contact with the accommodating portion.  45. The single-use safety butterfly needle structure according to claim 43, characterized in that: the end of the hose is connectable with a joint, and the joint is also a screw joint screwed with a special threaded syringe Connector instead.  46. The single-use safety butterfly needle structure according to claim 43, characterized in that: a syringe can also be connected behind the hose, and an injection needle is provided in the syringe, and an outer edge of the injection needle is sleeved with an outer Ring set.  47. The single-use safety butterfly needle structure according to claim 43, characterized in that: the upper end of the butterfly sheet can be connected with an adhesive part on the side edge, and the adhesive part is provided with a film covering. 48. The single-use safety butterfly needle structure according to claim 47, wherein the adhesive portion is also It can be set on the bottom end of the butterfly sheet, and the adhesive part is provided with a film covering.  49. The single-use safety butterfly needle structure according to claim 43, characterized in that: the lower end of the butterfly piece can also be provided with an adhesive part, and the adhesive part can be connected to another adhesive part by a side edge.  50. The single-use safety butterfly needle structure according to claim 43, wherein: both sides of the front end of the protective sleeve are extended with butterfly pieces, wherein one side of the butterfly piece is provided with a bent piece, and the bent piece There are several perforations at the end, and a hook on the other butterfly.  51. The single-use safety butterfly needle structure according to claim 50, wherein the hook and the perforation can be replaced by a devil.  52. The single-use safety butterfly needle structure according to claim 43, characterized in that: the end of the hose can be connected with a butterfly needle, the front end of the butterfly needle is bent down and an injection needle is inserted, and The outer edge is covered with an outer ring sleeve made of flexible soft rubber material, and a butterfly sheet is respectively extended outward from the lower edge of the two sides of the butterfly needle, and one or more of the butterfly sheet is provided with one or more side edges. A hook is provided, and a needle cover is sleeved on the front edge of the butterfly needle.  53. The single-use safety butterfly needle structure according to claim 52, characterized in that: the butterfly piece on one side of the butterfly needle body can be provided without a hook, and can be connected to the bottom of the two butterfly pieces or the two half-arc covers. Interlockable fasteners or adhesives are provided everywhere.  54. A single-use safety butterfly needle structure, comprising:-a butterfly needle body, the front end of the butterfly needle body is bent downward and an injection needle is inserted, and the bottom edges of the butterfly needle body respectively extend outwardly There is a butterfly piece, wherein one or more hooks are provided on the side edge of the butterfly piece, and the front end of each butterfly piece is provided with a half-arc cover, and the rear end of the butterfly needle body is connected with a hose. ; as well as  A needle cover is sleeved on the outer edge of the injection needle of the butterfly needle body.  55. The single-use safety butterfly needle structure according to claim 54, characterized in that: the butterfly piece on one side of the butterfly needle body may not be provided with a hook, but is connected to the bottom of the two butterfly pieces or the two half-arc covers. Interlockable fasteners or adhesives are provided everywhere.  56. The single-use safety butterfly needle structure according to claim 54, wherein: the end of the hose is connectable with a joint, and the joint is also a screw joint screwed with a special threaded syringe. Connector instead.  57. The single-use safety butterfly needle structure according to claim 54, characterized in that: a syringe can also be connected behind the hose, and an injection needle is provided in the syringe, and an outer edge of the injection needle is sleeved with an outer Ring set. 58. The single-use safety butterfly needle structure according to claim 54, wherein: The end can be connected with a sticking part on the side edge, and the sticking part is provided with a film covering.  59. The single-use safety butterfly needle structure according to claim 58, wherein the adhesive portion can also be disposed on the bottom end of the butterfly sheet, and the adhesive portion is provided with a film covering.  60. The single-use safety butterfly needle structure according to claim 54, characterized in that: the lower end of the butterfly sheet can also be provided with an adhesive portion, and the adhesive portion can be connected to another adhesive portion by a side edge.  61. The single-use safety butterfly needle structure according to claim 54, wherein: both sides of the front end of the protective sleeve are extended with butterfly pieces, wherein a butterfly piece is provided on one side of the butterfly piece, and the bending piece is There are several perforations at the end, and a hook on the other butterfly.  62. The single-use safety butterfly needle structure according to claim 61, wherein the hook and the perforation can be replaced by a devil.