TWM590462U - Self-destructing pull-down safety protection needle - Google Patents

Abstract

The present invention relates to a self-destructive retractable safety protective needle. The main structure includes an injection needle including a syringe and a push cylinder. A syringe inlet and a syringe outlet are respectively defined at the two ends of the syringe The side of the syringe adjacent to the exit of the syringe is defined with a buckle notch, and a barrel containing body receiving area is defined in the syringe, the push cylinder is sealed by a push cylinder to seal the joint of the soft sleeve and a piston of the push cylinder Combined with positioning a push cylinder sealing soft sleeve, a whole function combination body is provided on the side of the syringe outlet, the whole function combination body is provided with a combination body liquid outlet and a combination body coupling part which can be combined with the needle, and the syringe and A snap-off device and a limit stop device are arranged between the whole function combination body, and a self-destruction device is arranged between the push cylinder and the whole function combination body. The self-destruction device comprises a self-destruction joint component and a self-destruction positioning There is an airtight device defined on the component and the whole function combination body, so that the push cylinder and the whole function combination body can be combined through the self-destructive device, so as to bring the needle into the barrel to achieve the advantages of preventing reuse and improving safety .

Description

Self-destructive retractable safety protection needle

The present invention is to provide a self-destructive retractable safety protective needle, especially a kind of device that uses a push cylinder to inject the liquid in the syringe, and then enables the self-destructive device to actively combine the push cylinder portion of the syringe with the overall functional combination , And then pull the syringe back to prevent the self-destructive retractable safety protection needles used again.

According to the press, injection needles are medical supplies that come into contact with human tissues or blood, so they are basically items that need to be discarded after one use. However, there are still many unscrupulous people who will recycle needles for reuse or multiple people. The common use of the same injection needle is a very dangerous behavior for patients. Therefore, many countries have started legislation to use disposable safety needles to prevent this situation.

General safety needles are divided into ways to install a sleeve on the needle after use to prevent reuse, or to lock the push cylinder into the cylinder after use. However, if a safety needle using a safety sleeve is used, If the safety sleeve is not actively installed after completion, the protection and one-time use effects cannot be achieved. However, when the safety needle with the push cylinder engaged in the syringe is used, although the effect of active self-destruction can be achieved after use, the needle It will be exposed outside the barrel, or it may be dangerous to accidentally touch the needle.

Therefore, how to solve the problems and deficiencies of the above-mentioned practice is the one where the applicants of this new type and the relevant manufacturers engaged in this industry are desperate to study the direction of improvement.

Therefore, in view of the above-mentioned deficiencies, the creators of this new type have collected relevant information, evaluated and considered through multiple parties, and based on years of experience in this industry, through continuous trial and modification, they have designed this kind of active self-destructive effect. And the new patent holder of the self-destructive retractable safety protection needle which can retract the needle into the barrel to increase the safety.

The main purpose of the present invention is to combine the push cylinder with the whole function combination body through the self-destructing device, and then use the snap-off device to make the whole function combination body pull the needle into the needle cylinder to increase safety.

Yet another main purpose of the present invention is to: the limit stop portion resists through the combination body in the limit stop device The needle cylinder has a limit stop to prevent the whole function combination from rotating in the cylinder, which prevents the needle from being installed tightly.

To achieve the above purpose, the main structure of the present invention includes: an injection needle tool including a syringe and a push cylinder movably arranged at the end of the syringe, a syringe inlet defined at one end of the syringe, and a A syringe outlet portion at the other end of the syringe, a syringe binding body accommodating area defined in the syringe, at least one push cylinder sealing soft sleeve coupling portion defined on the push cylinder, at least one cylinder defined on the push cylinder Push cylinder piston part, at least one push cylinder seal soft sleeve positioned on the push cylinder via the push cylinder seal soft sleeve joint and the push cylinder piston part, an integral functional combination body located in the accommodating area of the syringe cylinder body, one An integrated body joint defined on the integrated functional body, an integrated body outlet defined on the integrated functional body, a disengagement device defined between the integrated functional body and the syringe, and an integrated function A limit stop device between the combination body and the cylinder, a self-destructive device defined between the overall function combination body and the push cylinder, a cardo-passage portion defined on the cylinder, and a limitation defined on the overall function combination Airtight device on the body.

The disengagement device includes at least one syringe disengagement portion defined on the syringe, and at least one combined body disengagement portion defined on the overall functional combination, and the limit stop device includes at least one syringe defined on the syringe The needle cylinder limit stop on the disengagement part, and at least one combination body limit stop on the combination body detent part, the self-destructive device includes a self-destructive engagement component defined on the push cylinder and A self-destructive positioning component defined on the whole function combination body, and the self-destructive coupling component includes a self-destructive coupling rod connected to the push cylinder, and a self-destructive coupling rod hook formed at the end of the self-destructive coupling rod The card portion and the self-destructive positioning component include a self-destructive positioning perforated portion formed on the whole functional combination, and at least one self-destructive positioning hook portion formed on the side of the self-destructive positioning perforated portion. The air-tight device includes an air-tight ring member joint formed on the integral functional body, and at least one air-tight elastic ring member joined to the air-tight ring member joint.

With the above-mentioned structure, the user can first engage the coupling body disengagement portion of the overall function combination body on the syringe disengagement portion before injection, thereby engaging the overall function combination body on the syringe body, and then The needle is mounted on the coupling body through the position of the barrel outlet, thereby coupling the needle to the overall functional coupling body, and when the needle is installed, it can be limited and stopped by the coupling body in the limit stop device The part is in contact with the limit stop of the needle cylinder, so as to prevent the whole functional combination from rotating in the needle cylinder, so that the needle cannot be tightly installed.

The push cylinder can be inserted into the syringe at the entrance of the syringe, and the medical fluid is pushed by the sealing sleeve of the push cylinder, so that the medical fluid is injected into the human body through the combined body outlet and the needle. When the medical fluid is injected, The combination of the push cylinder piston and the push cylinder sealing soft sleeve will be completely combined to position the push cylinder sealing soft sleeve to push the liquid, and the airtight elastic ring in the airtight device will be fully engaged with the airtight ring. On the head and touching the syringe to prevent the liquid from The body function combines with the gap between the body and the syringe.

After the injection of the medical fluid is completed, the self-destructive engagement component in the self-destructive device will be combined with the self-destructive positioning component to integrate the push cylinder to the overall functional combination, that is, the self-destructive engagement rod in the self-destructive engagement component will be worn Into the self-destructive positioning perforation part in the self-destructive positioning component, and snap the self-destructive engaging rod hook part to the self-destructive positioning hook part, thereby combining the push cylinder with the whole function combination body, and the user Just apply force to move the combined body's detachment part beyond the detachment part of the detachment to release the syringe detachment part, so as to pull the push cylinder and the whole functional combination towards the entrance of the syringe, and at the same time, the needle can be pulled Pulled into the needle cylinder, it can prevent others from touching the needle again, so as to improve the safety in use.

With the above technology, the conventional sleeve-type safety needles cannot be actively self-destructed and the self-destructive safety needles still have safety problems. It can achieve practical advancement of the above advantages.

1. 1b, 1c, 1d ‧‧‧ injection needle

11, 11a, 11b, 11c ‧‧‧ syringe

111‧‧‧Cylinder entrance

112, 112a‧‧‧Cylinder outlet

113‧‧‧Cylinder combined body storage area

114a‧‧‧Tilt needle stop

115d‧‧‧Needle Marking and Coding Department

12, 12a, 12b, 12c ‧‧‧ push cylinder

121‧‧‧Push cylinder sealing soft sleeve joint

122‧‧‧Guide part of push cylinder seal soft sleeve combination

123‧‧‧Push cylinder piston

124a‧‧‧Push cylinder seal soft sleeve positioning return part

125、125a‧‧‧Push cylinder sealing soft sleeve

126b‧‧‧Self Destruction Warning Department

127c‧‧‧Notch of push cylinder

13b‧‧‧Needle operating device

131b‧‧‧Push cylinder operation part

132b‧‧‧Cylinder operation part

14c‧‧‧Needle anti-detachment device

141c‧‧‧Cylinder anti-dropping limit

1411c‧‧‧Guide for anti-dropping combination of syringe

142c‧‧‧Push cylinder anti-off limit part

1421c‧‧‧Guide-proof combination guide for push cylinder

2. 2a, 2b, 2c

21‧‧‧Combination

22‧‧‧Combined body outlet

3‧‧‧Card off device

31, 31b

311b‧‧‧Combination card de-guiding slide

32, 32b

321b‧‧‧Cylinder card degumming sliding part

33‧‧‧ Carto Pass

4‧‧‧ Limit stop device

41‧‧‧Combination limit stop

42‧‧‧Cylinder limit stop

5, 5b, 5c‧‧‧Self-destructive device

51、51b‧‧‧Self-destructive joint assembly

511、511a‧‧‧Self-destructive joint rod

512‧‧‧Self-destructive engagement lever hook

513‧‧‧Self-destructive joint lever to catch elbow

514‧‧‧Self-destructive joint shrinkage

52、52b‧‧‧Self-destructive positioning component

521‧‧‧Self-destructive positioning perforation

522‧‧‧Self-destructive positioning hook

523‧‧‧Self-destructive positioning guide

524‧‧‧Self-destructive positioning shrinkage guide

6a‧‧‧Tilt resisting part

7‧‧‧Airtight device

71‧‧‧Airtight ring joint

72‧‧‧Airtight elastic ring

73‧‧‧Airtight elastic ring part

8‧‧‧Combined correction guide device

81‧‧‧Combined body correction guide

82‧‧‧Cylinder correction guide

9, 9a, 9c, 9d ‧‧‧ needle

91d‧‧‧Needle cover

The first figure is a cross-sectional view of the first embodiment of the new model.

The second figure is an exploded view of the first embodiment of the new model.

The second figure A is a partial schematic view (1) of the first embodiment of the new model.

The second picture B is a partial schematic view (2) of the first embodiment of the new model.

The second figure C is a partial schematic view (3) of the first embodiment of the new model.

The second figure D is a partial cross-sectional view of the first embodiment of the new model.

The third figure is a schematic view of the first embodiment of the new model.

The fourth figure is a schematic diagram of the first embodiment of the new model.

The fifth figure is a schematic diagram of self-destruction according to the first embodiment of the new model.

The sixth figure is a schematic diagram of the departure of the first embodiment of the new model.

The seventh figure is an exploded view of the second embodiment of the new model.

The eighth figure is a schematic diagram of the separation of the second embodiment of the new model.

The ninth figure is a schematic view of the swing of the second embodiment of the present invention.

The tenth figure is an exploded view of the third embodiment of the new model.

The eleventh figure is a warning schematic diagram of the third embodiment of the present invention.

Figure 12 is a schematic diagram of the departure of the third embodiment of the new model.

Figure 13 is an exploded view of the fourth embodiment of the new model.

Figure 14 is a combined schematic diagram of the fourth embodiment of the new model.

Figure 15 is a schematic diagram of a fracture of the fourth embodiment of the new model.

Figure 16 is a front view of a fifth embodiment of the new model.

In order to achieve the above-mentioned objectives and effects, the technical means and structure adopted by the present invention, the drawings and details of the preferred embodiment of the present invention are described in detail below. The features and functions are as follows, and Poli fully understands.

Please refer to the first figure to the second figure D, which is a cross-sectional view to a partial cross-sectional view of the first embodiment of the new model. It can be clearly seen from the figure that the new model includes: an injection needle 1 and the injection needle 1 includes There is a syringe 11 and a push cylinder 12, the two ends of the syringe 11 are respectively defined as a syringe inlet 111 and a syringe outlet 112, and the push cylinder 12 is movably disposed at one end of the syringe inlet 111 ; A syringe combined body receiving area 113 defined in the syringe 11, the syringe combined body receiving area 113 is located at a side adjacent to the syringe exit portion 112; a push cylinder sealed soft sleeve defined on the push cylinder 12 Combining part 121; a push cylinder sealing soft sleeve combination guide 122 defined on the push cylinder sealing soft sleeve combining part 121; a pushing cylinder piston part 123 defined on the pushing cylinder 12, the pushing cylinder piston part 123 is located on the pushing cylinder One side of the sealing sleeve joint portion 121; a push cylinder sealing sleeve 125, the pushing cylinder sealing sleeve 125 will be coupled to the pushing cylinder 12 via the pushing cylinder sealing sleeve portion 121 and the pushing cylinder piston portion 123; The whole function combination 2 of the syringe combination body accommodating area 113, and the whole function combination 2 defines a combination body connection portion 21 and a combination body liquid outlet 22, the combination body connection portion 21 can be combined with a needle 9 In this embodiment, the thread locking method is used, but it is not limited; a decoupling device 3 defined between the whole function combination 2 and the syringe 11, the decoupling device 3 includes at least one defined in The combined body detachment part 31 on the whole function combination body 2 and at least one syringe detachment part 32 defined on the syringe 11, the combined body detachment part 31 in this embodiment is formed on the integrated function combination body 2 The protrusion on the barrel, and the barrel disengagement part 32 is a concave part formed on the barrel 11 and corresponding to the combined body disengagement part 31, but it is not limited; one is defined in the barrel 11 and is located in the barrel The buckle notch portion 33 at the side of the buckle portion 32; a limit stop device 4 defined between the whole function combination 2 and the syringe 11, the limit stop device 4 includes at least one stopper defined in the combination body The combined body limit stop 41 at the side of the disengagement part 31, and at least one syringe limit stop 42 defined at the side of the syringe disengagement part 32; A self-destructive device 5 defined between the overall functional combination 2 and the push cylinder 12. The self-destructive device 5 includes a self-destructive joint component 51 defined on the push cylinder 12 and a The self-destructive positioning component 52, wherein the self-destructive engaging component 51 includes at least one self-destructive engaging rod 511 connected to the push cylinder 12, and a self-destructive engaging rod hook portion 512 formed at the end of the self-destructive engaging rod 511 1. A self-destructive engagement bar detent elbow 513 defined at the side of the self-destructive engagement bar 511, and a self-destructive engagement bar constrictor 514 defined at the self-destructive engagement bar detent 513 side, and the self-destructive positioning component 52 It includes a self-destructive positioning perforated portion 521 formed on the whole function combination 2, at least one self-destructive positioning hook portion 522 formed on the side of the self-destructive positioning hole portion 521, and at least one on the side of the self-destructive positioning hook portion 522 The self-destructive positioning guide 523 at the location, and at least one self-destructive positioning shrinkage guide 524 located on the side of the self-destructive positioning perforation 521; an airtight device 7 provided on the whole function combination 2 The airtight device 7 includes at least one airtight ring joint part 71 formed on the integral functional body 2, at least one airtight elastic ring part 72 joined to the airtight ring part joint 71, and one airtight ring defined in the airtight An airtight elastic ring anti-dropping portion 73 on the side of the ring joint portion 71; and a combined correction guide device 8 defined between the whole-function combination body 2 and the syringe 11, the combined correction guide device 8 includes at least A combined body correction guide 81 defined on the whole-function combined body 2 and at least one syringe correction guide 82 defined on the syringe 11.

Through the above description, the structure of this technology can be understood, and according to the corresponding cooperation of this structure, you can achieve the advantages of active self-destruction and increased safety after use after the injection is completed, and the detailed explanation will be described below .

Please also refer to the first figure to the sixth figure, which is a cross-sectional view to a schematic diagram of the first embodiment of the new model. When the above components are configured, it can be clearly seen from the figure that the user needs to integrate the whole The functional combination 2 is placed in the barrel combination receiving area 113 of the barrel 11, and the correction guide effect of the combination correction guide 82 in the combined correction guide device 8 cooperates with the combination correction guide 81 , Smoothly align the combined body detachment part 31 on the whole function combination body 2 with the syringe detachment part 32 in the detachment device 3, and engage the combined body detachment part 31 with the syringe detachment part 32 The internal function is engaged with each other, so that the whole functional combination 2 is coupled to the syringe 11, and then the needle 9 can be inserted into the syringe 11 from the position of the syringe exit 112 and locked to the coupling 21 In this embodiment, the combined body correction guide 81 and the barrel correction guide 82 are inclined surfaces corresponding to each other, but they are not limited, and when the needle 9 is locked on the combined body coupling part 21, the limited The needle cylinder limit stop in the position stop device 4 42 and the combined body stopper 41 will interfere with each other to prevent the whole function of the combined body 2 from rotating in the barrel 11, and the needle 9 can be tightly locked to the combined body part 21 to prevent liquid leakage, but it does not Set limits.

When the push cylinder sealing soft sleeve 125 is combined with the push cylinder 12, the guide effect of the push cylinder sealing soft sleeve combination guide 122 is smoothly and quickly engaged with the push cylinder piston part 123 and the push cylinder sealing soft sleeve. Between the parts 121 to prevent the push sleeve sealing soft sleeve 125 from detaching, the push sleeve 12 will penetrate into the syringe 11 at the syringe inlet 111, and the push sleeve sealing soft sleeve 125 will be completely attached to the inner wall of the syringe 11 In order to push the medical liquid in the syringe 11 into the human body through the combined body outlet 22 and the needle 9, when the push cylinder 12 is used to drive the push cylinder sealing soft sleeve 125, the push cylinder piston 123 and push The interlocking effect of the cylinder seal soft sleeve joint 121 positions the push cylinder seal soft sleeve 125 on the push cylinder 12, and when injecting the drug solution, the airtight elastic ring 72 in the airtight device 7 will The airtight ring coupling part 71 is combined with the whole function combination body 2, and when the syringe 11 is combined with the whole function combination body 2, the airtight elastic ring part deactivation portion 73 can be used to prevent the airtight elastic ring part 72 slides due to pushing, causing the airtight elastic ring 72 to disengage and move out of the airtight ring joint 71, thereby completely positioning the airtight elastic ring 72 against and tightly pressing against the inner wall of the barrel 11 In order to prevent the medical solution from flowing out of the gap between the whole functional combination 2 and the syringe 11, it causes unnecessary waste and prevents air from entering when the medical solution is sucked.

After the injection of the medical fluid in the syringe 11 is completed, the self-destructive engagement component 51 and the self-destructive positioning component 52 in the self-destructive device 5 will be combined with each other. The combination method is that the self-destructive engagement rod 511 will pass through the self-destructive Position the perforated portion 521, so that the self-destructive engagement lever hook portion 512 is engaged with the self-destructive positioning hook portion 522. When the self-destructive engagement lever 511 passes through the self-destructive positioning hole portion 521, the self-destruction The guiding effect of the positioning guide portion 523 pushes the self-destructive engagement rod 511 to move inward into the self-destructive engagement rod contraction portion 514, and the self-destructive positioning hook portion 522 moves outward to the self-destructive positioning contraction In the diversion portion 524, after the self-destructive positioning hook portion 522 passes through the self-destructive positioning hole portion 521, the self-destructive engagement rod 511 will rebound to its original position through the elastic force given by the self-destructive engagement rod detent elbow 513. As a result, the self-destructive engagement lever hook portion 512 is engaged with the self-destructive positioning hook portion 522, and then the push cylinder 12 can be combined with the overall functional combination 2 via the self-destructive engagement component 51 and the self-destructive positioning component 52. It can achieve the effect of active self-destruction to prevent others from using the injection needle 1 again, but it is not limited.

After that, the user can apply force to pull the push cylinder 12 toward the syringe inlet 111, that is, The push cylinder 12 and the integrated functional combination 2 can be driven to operate, wherein the coupling disengagement portion 31 will be detached from the syringe disengagement portion 32, so that the coupling disengagement portion 31 passes the barrier of the disengagement 33 and enters the syringe 11 In this way, the needle 9 is driven into the syringe 11 together, so the needle 9 can be completely stored in the syringe 11, so as to increase the overall safety.

Please also refer to the seventh to ninth figures at the same time, which is an exploded view to a swing schematic diagram of the second embodiment of the present invention. It can be clearly seen from the figure that this embodiment is similar to the above embodiment. In the example, the integrated functional body 2a is defined with an inclined pressing portion 6a, the needle cylinder 11a is defined with an inclined needle limiting portion 114a, and the push cylinder 12a is defined with a push cylinder sealing soft sleeve positioning return portion 124a, and when the needle 9a is brought into the syringe 11a by the integrated functional combination 2a, the inclined pressing portion 6a will correspondingly press the push cylinder sealing soft sleeve 125a, and the push cylinder sealing soft sleeve 125a will position the return portion 124a through the push cylinder sealing soft sleeve The guide return effect can make the push sleeve sealing soft sleeve 125a collide with the position of the inclined pressing portion 6a during injection, which produces an excellent positioning effect and ensures that it can still return to the original position after being moved, that is, the push sleeve sealing soft sleeve 125a The inclined return surface of the return part 124a will be positioned along the push cylinder seal soft sleeve (the push cylinder seal soft sleeve positioning return part 124a in this embodiment is an inclined surface that can assist the sliding of the push cylinder seal soft sleeve 125a, but it is not limited ), when moving in the direction of the self-destructive engagement rod 511a, the push cylinder sealing soft sleeve 125a will not be clamped above the self-destructive engagement rod 511a, and then the push cylinder sealing soft sleeve 125a will ensure sufficient resistance The squeezing force of the tilting and pressing portion 6a deflects the pendulum motion, that is, it can push the whole function combination 2a to produce the deflective pendulum motion in the syringe 11a. On the contrary, if the push cylinder sealing soft sleeve 125a is clamped, then It is impossible to generate a sufficient pushing force for the deflecting pendulum motion through the push cylinder sealing soft sleeve 125a, resulting in a functional defect of the inclined pressing portion 6a, and when the overall function combination 2a is deflecting the pendulum motion, the needle 9a will be driven to the barrel 11a The inward deflection swing moves the needle 9a away from the position of the barrel outlet 112a, and moves the tip of the needle 9a to align with the inclined needle stop 114a, so that the needle 9a can be received in the barrel 11a to prevent collision In addition to the danger of contact with others, when someone wants to push the push cylinder 12a to push the needle 9a out again, the needle 9a will also stop against the inclined needle limit stop 114a, and will not pass through the cylinder outlet 112a, so it can be completely The needle 9a is stored in the barrel 11a to increase the overall safety again, but it is not limited.

Please also refer to the tenth to twelfth figures at the same time, which is an exploded view to a disengaged schematic diagram of the third embodiment of the present invention. It can be clearly seen from the figure that this embodiment is similar to the above embodiment. The destruction device 5b further includes a self-destruction warning portion 126b defined on the push cylinder 12b, and the injection A needle operating device 13b is defined on the needle 1b. The needle operating device 13b includes a push cylinder operating portion 131b provided on the push cylinder 12b, and at least one syringe operating portion 132b provided on the syringe 11b. When sucking the medicine liquid or injecting the medicine liquid, they can touch the push cylinder operating part 131b and the syringe operating part 132b, respectively, to drive the push cylinder 12b to move in the syringe 11b, and when the self-destructing engagement component 51b and the self-destructing positioning component When 52b is about to be combined, the position of the self-destruction warning part 126b will correspond to the syringe operation part 132b, thereby reminding the user that the self-destruction engagement component 51b and the self-destruction positioning component 52b will be combined with self-destruction, but there is no limit.

Moreover, in this embodiment, a syringe locking and decoupling sliding portion 321b is defined on the side of the syringe locking and decoupling portion 32b, and a coupling locking and decoupling sliding portion 311b is defined on the side of the combining and locking portion 31b, The sliding portion 321b is a slanted surface formed on the syringe catching portion 32b, and the combined body disengagement guide sliding portion 311b is a inclined surface formed on the combining body disengagement portion 31b, that is, the guide sliding portion 321b and the coupling can be disengaged through the syringe The mutual guidance of the body card disengagement guide sliding portion 311b makes the overall functional combination 2b smoother when it is detached from the barrel 11b, but it is not limited.

Please also refer to the thirteenth to fifteenth figures, which are the exploded view to the broken schematic diagram of the fourth embodiment of the new model. It can be clearly seen from the figure that this embodiment is similar to the above embodiment. In this embodiment, the injection needle 1c is defined with a needle anti-detachment device 14c. The needle anti-detachment device 14c includes a syringe anti-offset limiting portion 141c defined on the syringe 11c, and a push cylinder 12c The upper push cylinder anti-dropping limiting portion 142c is defined at the side of the syringe anti-dropping limiting portion 141c, and a syringe anti-dropping guide portion 1411c is defined, and is defined at the side of the push cylinder anti-dropping limiting portion 142c There is a push cylinder anti-off combination guide 1421c, and the syringe anti-off combination guide 1411c and the push cylinder anti-off combination guide 1421c are respectively formed on the syringe anti-off limit part 141c and the push cylinder anti-off limit The inclined surface on the portion 142c defines a push cylinder cutout 127c on the push cylinder 12c, but it is not limited.

When the push cylinder 12c is about to enter the syringe 11c, the push cylinder 12c can be smoothly inserted into the syringe 11c through the guide functions of the syringe cylinder anti-drop combination guide 1411c and the push cylinder anti-drop combination guide 1421c, and After the injection is completed and the self-destructing device 5c combines the push cylinder 12c and the integrated function combination 2c, the user will pull the push cylinder 12c to insert the integrated function combination 2c and the needle 9c into the syringe 11c, and then the push cylinder The anti-dropping limit portion 142c is in contact with the syringe anti-dropping limit portion 141c, thereby preventing others from completely removing the push cylinder 12c for reuse, and at the same time, the push cylinder 12c can be broken at the push cylinder cut-out portion 127c to allow the push cylinder 12c Produces an irreversible one-time use effect, It can completely prevent others from using this injection needle 1c again, but it is not limited.

Please also refer to the sixteenth figure at the same time, which is a front view of the fifth embodiment of the new model. It can be clearly seen from the figure that this embodiment is similar to the above embodiment, and the needle 9d will be combined in this embodiment A needle cover 91d can prevent the injection needle 1d from being touched by others before use to enhance the protective effect, and a needle marking code portion 115d is defined on the injection needle 1d to allow the user to inject The amount of injection liquid can be observed to improve the convenience of use. In addition to displaying the amount of liquid, the needle marking and coding part 115d can also encode the injection needle 1d, such as printing A as the number, so That is, when a defect or defect occurs in the injection needle 1d, it can be quickly tracked to improve, but it is not limited.

However, the above is only the preferred embodiment of the new model, and it does not limit the patent scope of the new model. Therefore, all the simple modifications and equivalent structural changes caused by the use of the description and drawings of the new model should be the same. Included in the patent scope of this new model, it is jointly given to Chen Ming.

Therefore, the key to improving the conventional technology of this new type of self-destructive retractable safety protective needle is:

1. After the self-destruction device 5 allows the push cylinder 12 to inject the liquid medicine, the self-destruction effect can be achieved to prevent the disposable injection needle 1 from being used by others.

2. After the ejection device 3 is used to allow the user to complete the injection, the whole functional combination 2 and the needle 9 can be pulled into the barrel 11 to prevent the needle 9 from being left outside and causing danger.

3. The needle 9a can be completely left in the barrel 11a through the inclined pressing portion 6a, and the needle 9a will also be limited to the inclined needle limiting portion 114a, and will no longer be pushed out of the barrel outlet. Outside the part 112a, the needle 9a can be completely accommodated in the syringe 11a to achieve an irreversible self-destruction effect and increase the overall safety.

4. When the needle 9 is locked on the combined body joint part 21, the needle cylinder limit stop part 42 and the combined body limit stop part 41 in the limit stop device 4 will interfere with each other to prevent the overall functional combination The body 2 rotates in the syringe 11, and the needle 9 can be tightly locked on the coupling part 21 of the combined body to prevent liquid leakage.

5. Use the push cylinder seal soft sleeve to locate the return part 124a, to prevent the push cylinder seal soft sleeve 125a from being clamped above the self-destructive engagement rod 511a and unable to return, and to allow the push cylinder seal soft sleeve 125a to produce an excellent positioning effect and ensure After the movement, it can still return to the original position, so that the push cylinder sealing soft sleeve 125a ensures that sufficient pushing force is generated to resist the inclined pressing portion 6a to perform the deflection swing operation.

In summary, the self-destructive retractable safety protective needle of the new model is used to ensure its effectiveness and purpose. Therefore, the new model is a new model with excellent practicability, which is in compliance with the application requirements of the new patent. Applying in accordance with the law, I hope that the review committee will grant this new model as soon as possible to protect the applicant's hard work. If there is any doubt in the review committee of the Jun Bureau, please send me a letter and give instructions. The applicant will try his best to cooperate and feel virtuous.

1‧‧‧ Injection needle

11‧‧‧ syringe

12‧‧‧Push cylinder

125‧‧‧Push cylinder sealing soft sleeve

3‧‧‧Card off device

31‧‧‧Combination body

32‧‧‧Cartridge part

4‧‧‧ Limit stop device

41‧‧‧Combination limit stop

42‧‧‧Cylinder limit stop

5‧‧‧Self-destructive device

51‧‧‧Self-destructive joint assembly

52‧‧‧Self-destructive positioning module

8‧‧‧Combined correction guide device

81‧‧‧Combined body correction guide

82‧‧‧Cylinder correction guide

9‧‧‧ Needle

Claims (21)

A self-destructive retractable safety protective needle mainly includes: an injection needle including a syringe, and a push cylinder movably arranged at one end of the syringe; an inlet of the syringe, the needle The barrel inlet is defined at one end of the barrel; a barrel outlet is defined at an end of the barrel facing away from the barrel entrance for the push cylinder to be movably disposed at the barrel exit At least one part of the Kato notch, which is defined in the barrel and located at the side adjacent to the exit of the barrel; a barrel combined body containing area, the barrel combined body containing The zone is defined in the syringe and is located at the side adjacent to the outlet of the syringe; at least one push cylinder sealing soft sleeve joint, the push cylinder sealing soft sleeve joint is defined on the push cylinder; at least one push cylinder piston The piston part of the push cylinder is defined on the push cylinder, and is located at one side of the joint part of the push sleeve sealing soft sleeve; a push sleeve sealing soft sleeve, the push sleeve sealing soft sleeve is via the push sleeve sealing soft sleeve The joint part and the push cylinder piston part are combined and positioned on the push cylinder; an integral functional joint body, the integral functional joint body is located at the side of the needle cylinder outlet; at least one joint body joint part, the joint body joint part defines On the whole function combination, a needle is provided; a combination body outlet, the combination body outlet is defined on the whole function combination; a snap-off device, the snap-off device is defined on the whole function Between the combination body and the syringe, and the decoupling device includes at least one syringe decoupling portion defined on the syringe, and at least one decoupling portion defined on the overall functional combination, the The combined body disengagement part is for correspondingly engaging and disengaging the syringe disengagement part; a limit stop device, the limit stop device is provided between the whole function combination body and the syringe, and the limit The blocking device includes at least one syringe limit stop defined on the syringe release part, and at least one combined limit stop defined on the combined release part for the whole The function combination body and the needle cylinder limit the rotation corresponding to each other; a self-destruction device, the self-destruction device is defined between the push cylinder and the whole function combination body, and The self-destructive device includes a self-destructive engagement component defined on the push cylinder, and a self-destructive positioning component defined on the overall functional combination body, the self-destructive engagement component includes at least one connected to the push cylinder A self-destructive engagement rod, and a self-destructive engagement rod hook formed at the end of the self-destructive engagement rod, and the self-destructive positioning component includes a self-destructive positioning perforation formed on the whole function combination, And at least one self-destructive positioning hook portion formed at the side of the self-destructive positioning perforation portion; and an airtight device, the airtight device is defined on the overall functional combination, and the airtight device includes at least one formed in An airtight ring member joint part on the integral function combination body, and at least one airtight elastic ring member joined on the airtight ring member joint part. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the self-destructive device further includes at least one self-destructive warning part defined on the push cylinder. The self-destructive retractable safety protective needle as described in item 1 of the scope of the patent application, wherein the self-destructive engagement component further includes a self-destructive engagement rod detent elbow, which is defined at the side of the self-destructive engagement rod, and a Self-destructive joint shrinkage. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the self-destructive positioning component further includes at least one self-destructive positioning guide located at the side of the self-destructive positioning hook portion. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the self-destructive positioning assembly further includes at least one self-destructive positioning shrinkage diversion portion located at the side of the self-destructive positioning perforated portion. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the airtight device further includes at least one airtight elastic ring member anti-detachment portion located at the side of the airtight ring member joint portion. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein a combined correction guide device is defined between the overall function combination and the syringe, and the combined correction guide device includes at least one definition The combined body on the integral functional combined body corrects the guide portion. The self-destructive retractable safety protective needle as described in Item 7 of the patent application scope, wherein the combined correction guide further includes at least one barrel correction guide defined on the barrel. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the injection needle is defined with a needle anti-detachment device, and the needle anti-detachment device includes at least one definition A needle cylinder anti-dropping limit part on the needle cylinder, and at least one push cylinder anti-dropping limit part defined on the push cylinder. The self-destructive retractable safety protective needle as described in item 9 of the patent application scope, wherein the needle anti-detachment device further includes at least one syringe anti-drop combination guide defined on the syringe anti-drop limit portion unit. The self-destructive retractable safety protective needle as described in item 9 of the patent application scope, wherein the needle anti-detachment device further includes at least one push cylinder anti-drop combination guide defined on the push cylinder anti-drop limit portion unit. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the needle is provided with a needle cover. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the injection needle is defined with a needle operating device, and the needle operating device includes at least one push cylinder provided on the push cylinder An operation part and at least one syringe operation part provided on the syringe. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein at least one push cylinder cutout is defined on the push cylinder. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein at least one push cylinder sealing soft sleeve combination guide is defined on the push cylinder. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein at least one needle marking coding part is defined on the injection needle. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the decoupling device further includes at least one syringe decoupling guide sliding portion defined at the side of the syringe decoupling portion. The self-destructive retractable safety protection needle as described in item 1 of the patent application scope, wherein the decoupling device further includes at least one combined body decoupling guide sliding portion defined at a side of the combined body decoupling portion. The self-destructive retractable safety protective needle as described in item 1 of the patent application scope, wherein the integral functional combination body defines an inclined pressing portion. The self-destructive retractable safety protective needle as described in item 19 of the patent application scope, wherein the needle barrel is defined with at least one inclined needle stop. The self-destructive retractable safety protective needle as described in Item 19 of the patent application scope, wherein at least one push cylinder sealing soft sleeve positioning return part is defined at the side of the push cylinder sealing soft sleeve joint.

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