TWI679999B - Injection self-destructing safety needle - Google Patents

Abstract

The invention relates to an injection self-destructing safety needle. The main structure includes an injection needle including a syringe and a push cylinder telescopically arranged at one end of the syringe. The push cylinder defines a push tube sealing soft sleeve and a push pin. A cylinder piston portion, a syringe opening portion and a syringe coupling portion are respectively formed at two ends of the syringe, a syringe liquid outlet is formed at one end of the syringe coupling portion, and a pushing cylinder combination body is defined on the pushing cylinder and A combined body joint, a self-destructive combination device is defined on the injection needle, the self-destructive combination device includes a self-destructive positioning component and a self-destructive bonding component, and the self-destructive bonding component includes at least one self-destructive bonding rod, at least one A self-destructing engaging rod hook piece, a self-destructing elbow, and a self-destructing connecting body. The self-destructing combination device also defines a self-destructing piston portion and a self-destructing plugging member. With this, the self-destructive combination device can be permanently fixed in the syringe after use to close the syringe outlet to form an irremovable state, achieving the irreversible effect of actively combining self-destruction and detachment from self-destruction, making it absolutely Cannot be resold and resold.

Description

Injection self-destructing safety needle

The invention provides a self-destructing safety needle for injection, especially a self-destructing combined device that can actively close the syringe outlet after the liquid in the syringe is injected by a pusher, and has a specific and complete irreversibility. The self-destructing safety needle that actively combines self-destructive and self-destructive effects.

Generally speaking, the conventional safety needle has a safety protection mechanism for preventing the safety needle from being reused by adding a sleeve on the outside or adding a mechanism to enable the push cylinder to be fixed in the syringe.

If the sleeve is used to prevent the safety needle from being used again, because it does not have irreversibility, it may be easy for some unscrupulous manufacturers to return to the concern of remanufacturing and resale after recycling, and the user is troubled by the combination of complexity.

It is also not self-destructive. The safety protection mechanism is not activated after injection by the user, and the sleeve can be used repeatedly after being fixed or fixed on the syringe, which is a major concern of the general safety needle.

And if a mechanism is added to fix the push cylinder in the syringe, most of them will use the fixing device or squeeze the soft sleeve again to allow the hook to be combined with the push cylinder to fix it in the syringe, but it must be confirmed again. When the user pushes the pusher out again, most of them will disengage the hook or the fixing device. Even the software or integrated type of the hook device is more likely to be detached and damaged or cause excessive residual liquid. So that unscrupulous manufacturers or users can easily pull out by force, so that the safety needle can be re-sold or re-used, or even the user can not press the soft sleeve again to allow the hook to combine with the push cylinder, and then Repeated use cannot achieve a specific and complete self-destructive effect.

Therefore, when the above safety needles are used, the following problems and deficiencies still need to be improved:

First, the sleeve is not instantaneous self-destructive, and for the purpose of reversibility can not prevent remanufacture, resale and reuse.

Second, the sleeve has a passive form, which cannot self-destruct after injection to force the user to activate the safety protection mechanism.

3. After the needle is injected, it is not self-destructive, which can cause repeated use without changing the needle.

Fourth, the self-destructive effect of safety needles is still difficult to achieve effective and complete integrity to prevent the effect.

Therefore, how to solve the problems and deficiencies mentioned above is the applicant of this invention and The relevant manufacturers in the industry are eager to study the direction of improvement.

Therefore, the inventor of the present invention, in view of the above-mentioned shortcomings, collected relevant information, evaluated and considered from various parties, and based on years of experience accumulated in this industry, through continuous trials and modifications, he began to design this kind of use after injection. It can directly seal the liquid outlet of the syringe to achieve the effect of active self-destruction, and it cannot be taken out to cause an irreversible effective specific and complete effect to prevent others from inventing and reselling re-injected self-destructing safety needles.

The main purpose of the present invention is to use a self-destructive combination device and a self-destructive sealing member to enable the syringe to directly close the syringe outlet after use. At the same time as the injection is completed, additional actions are not required to make it active. Self-destruct effect.

Another main object of the present invention is: when anyone wants to use it again, the pusher can only be pulled out and the self-destructing combined device cannot be removed, so that it can achieve a permanent and irreversible detachment from the self-destructing effect.

In order to achieve the above object, the main structure of the present invention includes: an injection needle, the injection needle includes a syringe and a push cylinder telescopically disposed at one end of the syringe, and a push tube sealing soft sleeve defined on the push cylinder 1, a syringe opening defined at one end of the syringe, a syringe combination defined at the other end of the syringe, a syringe liquid outlet formed on the syringe, and a supply card defined on the push cylinder The pusher piston part of the push sleeve sealing soft sleeve, a pusher barrel combination defined at one end of the pusher barrel, a combined body combination portion defined on the pusher barrel combination, and a self-destructing combination defined on the injection needle Device, a self-destructing piston portion defined on the self-destructing combination device, and a self-destructing sealing member fixed by the self-destructing piston portion, and the self-destructing combination device includes a self-destructing engagement component defined on the injection needle, And a self-destructive positioning component defined on an injection needle, wherein the self-destructive engagement component includes a self-destructive connection body, at least one self-destructive engagement rod member defined on the self-destructive connection body, and at least one formed on the self-destructive engagement rod Pieces of self-destructing engaging lever hooks, and a Self-destruction due to the engagement between the self-destruction constraints rod portion and a self-destructive linkers.

With the above-mentioned structure, the user can push the push tube through the opening of the syringe during use, and cooperate with the soft sealing sleeve of the push tube to push the internal medical liquid in the direction of the syringe outlet, and combine with The needle on the syringe joint part drives the medicinal solution into the human body, and when the medicinal solution has been injected into the human body, the self-destructing engaging rod will gradually shrink inward, so that the self-destructing engaging rod partially penetrates into the self-destruct In the positioning assembly, the self-destructing engaging rod is fixed in the self-destructing positioning component through the elastic force provided by the self-destructing toggle elbow to fix the self-destructing engaging rod in the self-destructing positioning component, so that the self-destructing engaging component and the self-destructing positioning component are combined with each other. This secures the push cylinder in the syringe, and At the same time when the injection is completed, there is no need to do extra actions, that is, the self-destructive sealing member can be used to close the liquid outlet of the syringe to achieve the effect of actively combining self-destruction.

And when someone wants to pull the pusher out, the self-destructing combination device must be detached from the combination part, so that the self-destructing combination device remains at the syringe outlet and cannot be removed, and the syringe output is continuously closed. The liquid mouth, in this structural form, produces an irreversible effect to escape from self-destruction.

With the above-mentioned technology, the problems and defects of conventional safety needles can be effectively and concretely solved. After the injection, the effect of active self-destruction cannot be produced. After a slight pulling force is applied, the pusher can be easily removed to As a result, the fixed device or mechanism is released and decoupled without self-destruction. Therefore, the key structure can achieve the effect of effective specific integrity and self-destruction. The problem of remanufacture, resale and reuse can be eliminated from the root source. .

1‧‧‧ injection needle

11, 11a, 11b, 11c ‧‧‧ syringe

111‧‧‧ Syringe opening

112‧‧‧Syringe junction

113‧‧‧ Syringe outlet

114a‧‧‧Syringe operation unit

115a‧‧‧Syringe prevention limit

116a‧‧‧Syringe anti-off combination guide

12, 12a, 12b, 12e, 12f

121‧‧‧ Pusher piston

122, 122a, 122b, 122e, 122f

123a‧‧‧Push the cervical spine

124a‧‧‧ Pusher cutout

125a‧‧‧ Push tube anti-off limit position

126a‧‧‧Self-destruction warning department

127a‧‧‧Push tube anti-fall off combined guide

13, 13a, 13b‧‧‧Combination unit junction

2.2a‧‧‧Pushing tube sealing soft sleeve

3, 3a, 3b, 3e, 3f ‧‧‧ self-destructive combination device

31, 31b‧‧‧‧Self-destructing piston

311, 311a, 311b ‧‧‧ Self-destructive plugs

32, 32a, 32b ‧‧‧ self-destructive joint assembly

321, 321a, 321b‧‧‧ Self-destructing connector

322, 322a, 322b ‧‧‧ Self-destructed joint rod

323, 323b ‧‧‧ Self-destructing engaging lever hook

324‧‧‧Self-destructive shrinkage diversion gap

325, 325a, 325b ‧‧‧ Self-destructing elbow

327b‧‧‧ liquid port

33, 33a, 33b ‧‧‧ Self-destruct positioning module

331, 331b‧‧‧Circular stop

332, 332b‧‧‧Combined with perforated part

333b‧‧‧ Self-destructing locator

4c, 4d‧‧‧Safety sleeve

41c‧‧‧Import and export on sleeve

42c‧‧‧Import and export under sleeve

5c, 5d‧‧‧‧Automatically integrate the whole device

51c, 51d‧‧‧Integrated terminal power storage unit

511c‧‧‧Sleeve integral terminal power storage unit

512d‧‧‧Syringe terminal integral power storage unit

52c, 52d‧‧‧ sleeve automatic joint

53c, 53d‧‧‧syringe automatic docking part

54c, 54d

541c‧‧‧Syringe guide expansion

542d‧‧‧Sleeve guide expansion

55c, 55d‧‧‧‧Anti-off and self-destruction limit device

551c‧‧‧Syringe prevention and self-destruction limit

552d‧‧‧Sleeve anti-fall self-destructing limit section

56c, 56d‧‧‧Assembly guide

6c‧‧‧Two-way check limit section

61c‧‧‧Stop limit of sleeve

62c‧‧‧Stop limit of sleeve

63c‧‧‧ Upper limit of syringe

64c‧‧‧ Lower limit of syringe

7, 7c‧‧‧ Needle

8a, 8b, 8e, 8f ‧‧‧ combined shrinking device

81a, 81e‧‧‧ Self-destructive shrinkage

82a, 82b, 82f‧‧‧Combined body expansion part

9a, 9b, 9e‧‧‧ combined card release device

91a, 91b, 91e

92a, 92b, 92e ‧‧‧ combined body card release section

The first figure is an exploded view of the first preferred embodiment of the present invention.

The second figure is a sectional view of the first preferred embodiment of the present invention.

The third diagram is a schematic diagram of the first preferred embodiment of the present invention.

The fourth figure is a schematic diagram of the engagement of the first preferred embodiment of the present invention.

The fifth diagram is a closed schematic diagram of the first preferred embodiment of the present invention.

The sixth diagram is a schematic diagram of the removal of the first preferred embodiment of the present invention.

The seventh figure is a schematic structural view of a second preferred embodiment of the present invention.

The eighth figure is an exploded view of the second preferred embodiment of the present invention.

The ninth figure is a schematic diagram of the warning of the second preferred embodiment of the present invention.

The tenth figure is a schematic structural diagram of a third preferred embodiment of the present invention.

The eleventh figure is an exploded view of the third preferred embodiment of the present invention.

The twelfth figure is a schematic diagram of the engagement of the third preferred embodiment of the present invention.

The thirteenth figure is a schematic separation diagram of the third preferred embodiment of the present invention.

Fourteenth figure is a schematic structural view of a fourth preferred embodiment of the present invention.

The fifteenth figure is an exploded view of a sleeve according to a fourth preferred embodiment of the present invention.

The sixteenth figure is an exploded view of another angle sleeve of the fourth preferred embodiment of the present invention.

Figure 17 is a schematic diagram of the installation of the fourth preferred embodiment of the present invention.

The eighteenth figure is a rotation diagram of the fourth preferred embodiment of the present invention.

The nineteenth figure is a schematic engagement diagram of the fourth preferred embodiment of the present invention.

Figure 20 is an exploded view of the fifth preferred embodiment of the present invention.

The twenty-first figure is an exploded view from another angle of the fifth preferred embodiment of the present invention.

Figure 22 is a schematic diagram of the installation of the fifth preferred embodiment of the present invention.

The twenty-third figure is a schematic engagement diagram of the fifth preferred embodiment of the present invention.

Figure 24 is a schematic structural diagram of a sixth preferred embodiment of the present invention.

The twenty-fifth figure is a schematic structural diagram of a seventh preferred embodiment of the present invention.

In order to achieve the above-mentioned object and effect, the technical means and structure adopted by the present invention are described in detail below with reference to the preferred embodiments of the present invention.

Please refer to the first and second figures, which are exploded and sectional views of the first preferred embodiment of the present invention. It can be clearly seen from the figure that the present invention includes: An injection needle 1, a push tube sealing soft sleeve 2, a syringe opening 111, a syringe coupling portion 112, a syringe liquid outlet 113, a pushing piston portion 121, a pushing barrel combination 122, A combined body joint portion 13, a self-destructive combination device 3, a self-destructive piston portion 31, and a self-destructive sealing member 311, wherein the injection needle 1 includes a syringe 11 and a telescopically disposed end of the syringe 11 The push tube 12, push tube combination body 122 is defined at one end of the push tube 12, and the push tube combination body 122 is defined with a combination body joint portion 13, the push tube piston portion 121 is defined on the push tube combination body 122, and the push tube The sealing soft sleeve 2 is engaged with the pushing cylinder 12 through the pushing cylinder piston portion 121, and the manufacturing of the pushing cylinder sealing soft sleeve 2 can also be integrated with the self-destructive sealing member 311 during the manufacture, and its shape is not limited. The opening of the syringe 111 and the syringe liquid outlet 113 are formed at both ends of the syringe 11 respectively, and the syringe coupling portion 112 is defined at one end of the syringe 11 having the syringe liquid outlet 113, which is used for combining the needle 7 and the self-destructing combination device 3 is defined on the injection needle 1, and the self-destructing piston portion 31 is defined on the self-destructing combined device 3, and is used for engaging the self-destructing sealing member 311 (but its combination side (It is not limited) and cooperates with the self-destructive combination device 3 to selectively close the syringe outlet 113, and then cooperates with the self-destructing piston portion 31 to achieve a better sealing effect and prevent the function of the self-destructive plug 311 from being destroyed. But it is not restricted.

The self-destructive combination device 3 includes a self-destructive engaging component 32 and a self-destructive positioning component 33. In this embodiment, the self-destructive engaging component 32 is defined on the push cylinder 12 and the self-destructive positioning component 33 is defined on the syringe 11. But it is not restricted.

The self-destructive joint assembly 32 includes a self-destructive connection correspondingly connected to the combined body joint 13. Body 321, two self-destructive engaging rods 322 connected to self-destructing connecting body 321, two self-destructing engaging rod hooks 323 formed on self-destructing engaging rod 322, one defined by self-destructing engaging rod 322 Between the self-destructive shrinkage guide diversion gap 324 and a self-destructive restraint elbow defined between the self-destructive engagement rod 322 and the self-destructive connecting body 321 and located at one side of the self-destructive shrinkage diversion guide gap 324 325.

The self-destructive positioning assembly 33 includes a ring-shaped limiting portion 331 defined on the inner wall of the syringe 11 and a combined perforated portion 332 formed in the center of the ring-shaped limiting portion 331.

With the above description, the structure of the technology can be understood, and according to the corresponding cooperation of this structure, the self-destructing combination device 3 can be used with the self-destructing sealing member 311 to achieve the effect of combining self-destructing, and can prevent others from using it again. , And a detailed explanation will be described below.

Please also refer to the first to sixth figures together, which are the exploded view to the removal diagram of the first preferred embodiment of the present invention. When the above components are assembled, it can be clearly seen from the figure that the user can Push the syringe 12 into the syringe 11 through the syringe opening 111, and push the medicinal solution from the syringe outlet 113 through the syringe seal soft sleeve 2 through the needle 7 coupled to the syringe coupling portion 112 The medicinal solution is completely injected into the human body, but the manner of combining the syringe coupling portion 112 and the needle 7 is not limited.

When the medicinal solution is fully pushed into the human body, the self-destructing engaging rod 322 in the self-destructing engaging assembly 32 will be retracted inward by using the self-destructing shrinkage guide gap portion 324, thereby partially passing through the self-destructing positioning assembly 33. Combined with the perforated part 332, and then use the self-destructing elbow 325 to cooperate with its own elastic force to spread outward, so that the self-destructing engaging lever hook piece 323 can be aligned with the annular limiting part 331, and the self-destructing shrinks The tension-guiding gap portion 324 allows the medicinal liquid between the self-destructing engaging rod hook 323 and the self-destructing sealing member 311 to be more completely and easily injected into the body to reduce its residual amount. The position of the portion 324 is not limited.

In the above manner, the self-destructive joining component 32 can be combined with the self-destructive positioning component 33, and the self-destructive sealing member 311 can be used to close the syringe outlet 113 to achieve the effect of actively combining self-destructive, To prevent someone from using the syringe 11 again, and since this method is used to achieve the combined self-destruct effect directly after use (but the combination method is not limited), and the rest of the action and re-squeezing are not required at the same time as the injection The combination is more direct, faster and more convenient than the conventional method, and effectively and specifically improves the passive security protection mechanism.

When someone wants to take out the push cylinder 12 forcibly to use the syringe 11 again, because the connecting force of the combined body joint 13 and the self-destructing connecting body 321 is smaller than the self-destructing engaging rod hook 323 engaging at the annular limit The strength of the position portion 331, so the combined body joint portion 13 must be separated from the self-destructing connecting body 321, and the self-destructing connecting body 321 and the combined body joint portion 13 can be combined by means of adhesion or engagement, etc., which is not limited. In this way, when someone forcibly pulls the force and wants to use it again, the push cylinder 12 will only be taken out, while the self-destructing combination device 3 will remain in the syringe 11 and continue to cooperate with the self-destructing plug 311 to close it. The syringe liquid outlet 113 cannot be removed, that is, an irreversible detachment from the self-destructive state will be generated, so the effect of permanent self-destructiveness of specific integrity can be achieved.

Please refer to FIGS. 7 to 9 at the same time, which are structural schematic diagrams to warning schematic diagrams of the second preferred embodiment of the present invention. It can be clearly seen from the figure that this embodiment is similar to the above embodiment. Two combined contraction devices 8a are defined between the self-destructive combination device 3a and the push cylinder combination body 122a. In this embodiment, the combined contraction device 8a includes a self-destructive contraction portion on the self-destructive connection body 321a. 81a, and a combined body contraction portion 82a located on the push cylinder combined body 122a. Although the self-destructing engaging rod 322a in this embodiment presents a sharp cone shape, the self-destructing elbow 325a is also located Between the self-destructive shrinkage portion 81a and the self-destructive engaging rod 322a, it is indicated that the shape is not limited, and there are two combined card release devices 9a defined between the self-destructive combination device 3a and the push cylinder combination body 122a. The combination card release device 9a in this embodiment includes a self-destruction card release portion 91a located on the self-destruct combination device 3a and a combined body release portion 92a located on the push cylinder combination body 122a. 91a is a convex portion, and the combined body release portion 92a is a concave portion, but it is not limited. When the self-destructing connecting body 321a is detached from the combined body joint portion 13a, the self-destructing shrinking portion 81a can be used to contract inwardly and the combined body contracting portion 82a can be used to expand the pusher cylinder combined body 122a to separate the self-destructing connecting body 321a. It is faster, and the self-destructing snap-off portion 91a may be correspondingly coupled to the combined-body snap-off portion 92a, so as to enhance the locking effect when the self-destructing connecting body 321a is connected to the combined-body coupling portion 13a.

Furthermore, a push-tube preventing stop 125a and a push-tube cervical vertebra 123a are defined on the push tube 12a, but the mutual positional relationship is not limited. The push-tube preventing stop 125a can be used in combination with the push tube 12a and The push tube combination body 122a can not only strengthen the sealing effect, but also enhance the sealing positioning and prevent deformation effects of the push tube sealing soft sleeve 2a, and the push tube cervical vertebra 123a can also correspond to the engaging push tube sealing soft sleeve 2a. The sealing effect is strengthened again, and the liquid medicine can be pushed more completely, but it is not limited.

A syringe operation portion 114a is defined on the syringe 11a, and a self-destruction warning portion 126a corresponding to the syringe operation portion 114a is defined on the push cylinder 12a. Therefore, the self-destruction warning portion 126 a When the syringe operating part 114a is aligned, it indicates that the self-destructive engagement component 32a is about to be combined with the self-destructive positioning component 33a, which can assist the user to determine the timing and position of the combination, and avoid self-destructive irreversibility caused by mistakes in the process of aspiration of the medicinal solution.

Furthermore, in this embodiment, the syringe 11a is defined with at least one syringe anti-off stopper 115a, and the syringe anti-off stop 115a may correspond to a position that abuts against the pusher anti-off stop 125a, so that The push-out prevention limit portion 125a is set as the corresponding limit position, and one side of the syringe-out prevention limit portion 115a is defined with a syringe-out prevention combination guide portion 116a, and one of the push-out prevention position 125a A push-out prevention combination guide 127a corresponding to the syringe-out prevention combination guide 116a is defined at the side. When the push-up cylinder 12a enters the syringe 11a, the push-out prevention combination guide 116a can be cooperated with the push-up prevention The guide effect of the disengagement combination guide 127a assists the entry. When the user wants to pull the push cylinder 12a out, the syringe anti-off stopper 115a and the pusher anti-off stop 125a will interfere with each other, thereby preventing the push. The cylinder 12a is pulled out in advance to remove the self-destructive combination device 3a, and a push cylinder cutout 124a is defined on the push cylinder 12a. Since the bending shear force cannot be generated in the syringe 11a, it will not cause damage during use. After use, the user can pull the pusher 12a to the corresponding limit position so that the pusher cutout 124a is exposed outside the syringe 11a. Then, it resists the bending shear force to break the pushing cylinder 12a through the pushing cylinder cut-out portion 124a to prevent it from being used again and leaving the pushing cylinder sealing soft sleeve 2a inside the syringe 11a, and in this embodiment, the syringe is prevented from falling off. The position 115a is a cone-shaped convex point, and the push tube sealing soft sleeve 2a and the self-destructive sealing member 311a are separated to increase the self-destructive sealing effect in the syringe 11a, but it is not limited.

Please also refer to the tenth to thirteenth drawings at the same time, which are structural schematic diagrams to separate schematic diagrams of the third preferred embodiment of the present invention. It can be clearly seen from the figure that this embodiment is similar to the above embodiment. The self-destructive engagement component 32b in the self-destructive combination device 3b is defined on the syringe 11b, and the self-destructive positioning component 33b is defined on the pusher barrel 12b. The self-destructive positioning component 33b includes a pusher barrel combination body 122b The self-destructing positioning body 333b and an annular limiting portion 331b formed in the self-destructing positioning body 333b, the combined perforation portion 332b is formed at the opening of the self-destructing positioning body 333b, and the self-destructing positioning body 333b will be correspondingly combined On the combined body joint portion 13b, and in this embodiment, the combined card release device 9b is a self-destructed card release portion 91b formed on the self-destructive positioning body 333b, and the self-destructed card release portion 91b can be correspondingly combined with the combination body to be combined. A coupling body in the portion 13b is used to release the coupling portion 92b to enhance the engagement effect, but the manner of engagement is not limited. In this embodiment, the combined contraction device 8b includes a push-tube combination body. Conjugate on 122b The contraction portion 82b allows the compressed space to be formed by the combination contraction portion 82b when the self-destructive positioning component 33b is disengaged. In this embodiment, the self-destructive engagement component 32b further includes a self-destructive connection component 321b. The liquid-passing port 327b allows the medicinal solution to pass through, and the above-mentioned combination manner is not limited.

The self-destructing piston portion 31b is defined on the self-destructing positioning component 33b, and the self-destructing sealing member 311b is also connected to the self-destructing positioning component 33b via the self-destructing piston portion 31b. When the self-destructing positioning component 33b and the self-destructing joining component 32b When combined, the self-destructing engaging lever 322b will penetrate into the self-destructing positioning body 333b, and the self-destructing engaging lever hook 323b is engaged with the ring through the elastic force of the self-destructing elbow 325b and the self-destructing engaging lever 322b. On the state-limiting portion 331b, when someone wants to remove the push cylinder 12b, the self-destructing positioning component 33b will also be disengaged from the combined body joint portion 13b, thereby also achieving an irreversible disengagement and self-destructing effect, and its self-destructing connecting body 321b The fixing method may be one of placing, gluing, or integral molding. However, it is not limited to illustrate the freedom and diversity of the present invention.

Please also refer to the fourteenth to nineteenth figures at the same time, which are the structural schematic diagrams to the engaging schematic diagrams of the fourth preferred embodiment of the present invention. It can be clearly seen from the figure that this embodiment and the above embodiments For the same purpose, a safety sleeve 4c is provided on the syringe 11c. An upper sleeve inlet 41c and a lower sleeve inlet 42c are formed at both ends of the safety sleeve 4c, and the syringe 11c and the safety sleeve 4c are formed. An auto-integrated integrated device 5c is defined above. The auto-integrated integrated device 5c includes at least one integral terminal power storage portion 51c, at least one sleeve automatic combination portion 52c formed on the safety sleeve 4c, and at least one formed on the syringe 11c. And the automatic cylinder butt joint portion 53c corresponding to the automatic cylinder joint portion 52c, wherein the automatic cylinder joint portion 52c is in the state of two elastic protrusions and the automatic cylinder cylinder butt portion 53c is in the state of two half-moon grooves. Yes, but it is not limited.

The safety sleeve 4c is defined with at least one assembly guide contraction device 54c and an anti-detachment self-destruction limit device 55c. The assembly guide contraction device 54c can be used to compress the integral terminal force storage portion 51c to smoothly assemble and prevent disassembly. The self-destructing limit device 55c can prevent the deviation from being combined when assembled through the assembly guide and contraction device 54c. After the safety sleeve 4c is introduced, it can strengthen and complete the protection effect. When others want to remove it, they can only use damage and damage. In addition, when the safety sleeve 4c and the syringe 11c are assembled, the entire terminal force storage portion 51c can perform the action of accumulating the elastic force potential energy without hindrance.

A two-way backstop limiter 6c is defined on the sleeve automatic coupling portion 52c and the syringe automatic docking portion 53c. The two-way backstop limitation portion 6c includes a sleeve upper limit stop 61c defined on the sleeve automatic coupling portion 52c. A syringe upper end limiting portion 63 defined on the syringe automatic docking portion 53c c. A sleeve lower limit portion 62c defined at the lower end of the sleeve automatic coupling portion 52c and a syringe lower limit portion 64c defined at the lower end of the syringe automatic docking portion 53c are provided for the safety sleeve 4c to be pushed out of the syringe 11c. After combination, it becomes a security protection mode of two-way backstop limit, which can effectively prevent the reverse recovery action to prevent repeated use.

In this embodiment, the integral terminal accumulating portion 51c is formed on the sleeve automatic coupling portion 52c, that is, the sleeve integral terminal accumulating portion 511c, and the assembly guide and contraction device 54c is formed at the end of the syringe 11c. The syringe guide contraction portion 541c, and the anti-fall-off self-destruction limit device 55c are the syringe guide-release self-destruction limit portions 551c defined at one side of the syringe guide contraction portion 541c. An assembling guide opening 56c is formed in the tensioning portion 541c.

When the user wants to combine the safety sleeve 4c with the syringe 11c, the sleeve automatic coupling portion 52c (which is in the form of an elastic protrusion in this embodiment) is placed on the side of the syringe 11c, and the sleeve is automatically coupled. 52c avoids the syringe automatic docking part 53c (in this embodiment, it is a two-half moon shape notch), and the positioning guide operation is completed by the tapered assembly guide opening 56c, which makes the sleeve automatically join the part easily 52c is inserted from the syringe guide contraction portion 541c of the assembly guide contraction device 54c, and twisted and displaced to complete the assembly operation. (Conversely, after the sleeve automatic joint portion 52c is inserted into the assembly, it is extremely difficult to remove the assembly guide port 56c. The narrow end of the sleeve is withdrawn in the reverse direction). At this time, although the sleeve automatic coupling portion 52c is an inwardly elastic protrusion, the sleeve can be easily compressed outward by guiding the bevel of the contraction portion 541c through the syringe. The joint portion 52c greatly saves the force required for assembling the safety sleeve 4c and the syringe 11c, and can be assembled using automation. The elasticity of the sleeve integral terminal accumulating portion 511c enables the integral formation to the sleeve integral terminal storage. The sleeve automatic coupling portion 52c at one end of the force portion 511c automatically expands outwards and completes the storage at the same time. The effect of elastic potential energy.

The safety sleeve 4c is sleeved to the bottom so that the needle 7c passes through the lower inlet and outlet 42c of the sleeve, and then the safety sleeve 4c is rotated and the sleeve automatic coupling portion 52c is stopped at any position on the outer wall of the syringe 11c. After the injection is completed, the user only needs to pull out the safety sleeve 4c toward the needle 7c, and move the sleeve automatic coupling portion 52c to the syringe automatic docking portion 53c (this embodiment is notched, but it is not limited) ), To automatically release the elastic force accumulated in the sleeve integral terminal accumulating portion 511c, so that the automatic syringe docking portion 53c and the sleeve automatic coupling portion 52c are correspondingly coupled without using any bonding force, and the elastic potential energy is automatically released. The sleeve is automatically combined by using the upper limit of the sleeve stopper 61c and the upper limit of the syringe 63c and the limit of the lower end stop 62c and the lower limit 64c of the syringe. 52c and syringe automatic docking part 53c Fully latched and fixed, even if the safety sleeve 4c is twisted laterally, the syringe can be used to prevent the self-destructive stopper 551c from blocking the sleeve to prevent the automatic coupling portion 52c from being disengaged by the syringe guide contraction portion 541c. No matter how it is operated, the sleeve automatic coupling portion 52c and the syringe automatic docking portion 53c will no longer be separated, and the purpose of irreversible structure safety protection is indeed achieved, so as to improve the stability effect of safety protection and effectively prevent needle damage. .

Please also refer to the twentieth to twenty-third figures shown at the same time, which are the exploded view to the snap-in schematic view of the fifth preferred embodiment of the present invention. It can be clearly seen from the figure that this embodiment and the above implementation The examples are similar. In this embodiment, the sleeve pre-stress automatic coupling portion 52d is in the shape of a two-half-moon-shaped groove, and the syringe pre-stress automatic docking portion 53d is in the shape of two elastic protrusions. In this embodiment, Among them, the integral terminal accumulating portion 51d is formed on the syringe preload automatic butting portion 53d, that is, the integral terminal accumulating portion 512d of the syringe, and the assembly guide and contraction device 54d is a sleeve formed on the safety sleeve 4d. The assembly contraction portion 542d is installed, and the anti-detachment self-destruction limit device 55d is a sleeve assembly self-destruction limit portion 552d formed at the sleeve assembly contraction portion 542d side, and the assembly guide opening 56d is formed in the sleeve. On the assembly and contraction portion 542d, by using the above structure, the structural position of the automatic combination of the integrated device 5d clamping and being clamped is changed to increase the variability of the operation mode of this case, and the remaining operations are the same as those in the previous embodiment and will not be described again.

Please also refer to FIG. 24 at the same time, which is a schematic structural diagram of a sixth preferred embodiment of the present invention. As can be clearly seen from the figure, the number of combined contraction devices 8e in this embodiment is one, and The combined contraction device 8e includes a self-destructive contraction portion 81e located on the self-destructive combination device 3e. Therefore, when the user only needs to pull the push cylinder 12e, the user can compress inwardly through the self-destructive contraction portion 81e to make the self-destruct The destruction combination device 3e is separated from the push cylinder combination body 122e, so that it can easily achieve an irreversible separation and self-destruction effect.

In addition, the combined body release portion 92e in the combined release device 9e is a convex portion located on the push cylinder combined body 122e, and the self-destructed release portion 91e is a concave portion located on the self-destructed combination device 3e, thereby indicating that it can be Mutual exchange, but it is not limited.

Please also refer to FIG. 25 at the same time, which is a schematic structural diagram of a seventh preferred embodiment of the present invention. It can be clearly seen from the figure that the number of combined contraction devices 8f in this embodiment is one, and The combined contraction device 8f includes a combination contraction portion 82f located on the push tube combination 122f, so when the user only needs to pull the push tube 12f, the combination contraction portion 82f can be used to make the push tube combination 122f Expand outward to disengage the self-destructive combination device 3f from the push-tube combination body 122f, making it easy An irreversible detachment and self-destruction effect is achieved, and it is indicated that the combination and contraction device 8f is not limited in its position and number.

However, the above description is only the preferred embodiment of the present invention, and it does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be the same. It is included in the patent scope of the present invention and is incorporated by Chen Ming.

Therefore, the technology of the injection self-destructing safety needle of the present invention can improve the practice. The key lies in:

First, the self-destructive combination device 3 is used with the self-destructive sealing member 311 to directly close the syringe outlet 113 after the injection is completed. At the same time, the injection can be completed without the need for additional extra actions to achieve the effect of actively combining self-destruction.

2. The self-destructive combination device 3 is used to cooperate with the combination body joint portion 13. When anyone wants to use it again and only needs to apply a slight pulling force, the combination body combination portion 13 will be detached from the self-destruction combination unit 3, and The destruction combination device 3 and the self-destructive sealing member 311 are permanently fixed in the syringe 11 and continuously close the syringe outlet 113 to achieve a permanent and irreversible escape from the self-destruction effect.

3. Adding the safety sleeve 4c once again enhances the self-destructive protection effect of the present invention and the purpose of preventing needle damage. With the simple structure of the automatic combination of the overall device 5c, only one easy action is needed to pull the safety sleeve 4c to the binding fixed point. The integral power storage terminal portion 51c does not need to use any bonding force, and it will automatically release the spring force position for bonding and fixing.

Fourth, the bidirectional backstop limiter 6c is combined with the safety sleeve 4c to achieve another irreversible self-destructive effect.

Fifth, through the cooperation of the assembly guide and contraction device 54c, the force required for assembling the safety sleeve 4c and the syringe 11c can be greatly saved, and the effect of automatic assembly can be achieved without hindrance.

In summary, the injection self-destructing safety needle of the present invention, when used, can really achieve its efficacy and purpose. Therefore, the present invention is an invention with excellent practicality. In order to meet the application requirements of the invention patent, it is proposed according to law. I hope that the review committee will grant the present invention as soon as possible to protect the applicant's hard work. If there is any suspicion in the review committee of the Bureau, please write to us and the applicant will cooperate with all efforts and be honest.

Claims (25)

An injection self-destructing safety needle mainly includes: an injection needle, the injection needle includes a syringe, and a push cylinder telescopically disposed at one end of the syringe; a push sleeve sealed soft sleeve, the push cylinder A soft sealing sleeve is defined on the push cylinder for the push cylinder sealing soft sleeve to fit and seal the inner wall of the syringe when the push cylinder is telescopically arranged in the syringe; a syringe opening, the A syringe opening is formed at one end of the syringe for the push cylinder to partially penetrate into the syringe; a syringe coupling part is defined at one end of the syringe and is used for combining one A needle; a syringe liquid outlet formed at one end of the syringe with the syringe coupling portion for communicating with the needle; a pusher piston portion defined by the pusher piston portion On the pushing cylinder, the sealing soft sleeve of the pushing cylinder is engaged to push out the fluid in the syringe; a pushing cylinder assembly, the pushing cylinder assembly is defined at one end of the pushing cylinder; Part, the combination part is defined on the push cylinder combination; a self-destructive combination device is defined as the injection And the self-destructive combination device includes a self-destructive engagement component defined on the injection needle and a self-destructive positioning component defined on the injection needle, when the self-destructive engagement component and the self-destructive positioning After the components are combined, the self-destructing combination device is permanently fixed at the liquid outlet of the syringe and cannot be removed. The self-destructing engaging component includes at least one self-destructing engaging rod member and at least one self-destructing engaging rod hook member. A self-destructing elbow and a self-destructing connecting body, the self-destructing elbow is defined on the self-destructing connecting body, the self-destructing engaging rod is connected to the self-destructing elbow and the self-destructing connecting body, and The self-destructing connecting bodies are defined on the injection needle, the self-destructing engaging rod hook member is formed on the self-destructing engaging rod, and the self-destructing elbow is located on the self-destructing engaging rod and the self-destructing connection. Between the body and the self-destructive joint component is defined on the combined body joint portion, the self-destructive positioning component is defined on the syringe, the self-destructing piston portion is defined on the self-destructive connection body, and the self-destructive joint is The rod is connected to the self-destructing piston portion and the self-destructing connecting body, The self-destructing piston portion is located between the self-destructing engaging rod and the self-destructing connecting body, and the self-destructing sealing member is defined at one side of the self-destructing engaging component; a self-destructing piston portion, the self-destructing piston The self-destructive sealing member is defined on the self-destructing piston portion, and is used for closing the syringe liquid outlet with the self-destructing combination device. The injection self-destructing safety needle as described in item 1 of the patent application scope, wherein the self-destructing positioning component includes at least an annular stopper portion defined around an inner wall of the syringe barrel, and an annular stopper formed on the inner limiter. The combined perforation part in the center of the position part is provided for the self-destructing engaging rod member to pass through, so that the self-destructing engaging rod hook member is fixed at one side of the annular limiting part. The injection self-destructing safety needle as described in item 1 of the scope of patent application, wherein at least one combined contraction device is defined between the self-destructing combined device and the push-tube combination. The injection self-destructing safety needle as described in item 3 of the scope of patent application, wherein the combined contraction device includes a self-destructive contraction portion located on the self-destruction combination device. The injection self-destructing safety needle as described in item 3 of the patent application scope, wherein the combined contraction device includes a combination contraction portion located on the push tube combination. The injection self-destructing safety needle as described in item 1 of the scope of patent application, wherein at least one combination card release device is defined between the self-destructing combination device and the push cylinder combination. The injection self-destructing safety needle as described in item 6 of the patent application scope, wherein the combination card release device includes a self-destruction card release portion located on the self-destruction combination device. The injection self-destructing safety needle according to item 6 of the patent application scope, wherein the combined card release device includes a combination card release portion located on the push cylinder combination. The injection self-destructing safety needle according to item 1 of the scope of patent application, wherein the syringe is defined with a syringe operating portion, and the pusher is defined with at least one self-destructing warning portion corresponding to the syringe operating portion. , For marking the combined position of the self-destructive joint component and the self-destructive positioning component. The injection self-destructing safety needle according to item 1 of the scope of the patent application, wherein at least one push cylinder anti-off limit position is defined on the push cylinder, and at least one pair of push cylinder anti-off limit is defined on the syringe. Syringe-proof stop of the position. According to the injection self-destructing safety needle as described in item 10 of the patent application scope, one side of the push-tube anti-off limit portion is defined with a push-tube anti-off combination guide portion, and the syringe anti-off limit portion One side is defined with at least one syringe anti-offset combined guide portion. The injection self-destructing safety needle as described in item 1 of the scope of patent application, wherein at least one pusher cervical spine is defined on the pusher. The injection self-destructing safety needle as described in item 1 of the scope of the patent application, wherein the pushing cylinder is defined with at least one pushing cylinder cutout portion. The injection self-destructing safety needle according to item 1 of the scope of the patent application, wherein the syringe has a safety sleeve, and the safety sleeve includes an inlet and outlet on a sleeve formed at one end of the safety sleeve and An inlet and outlet under the sleeve formed at the other end. According to the injection self-destructing safety needle as described in item 14 of the scope of the patent application, the syringe and the safety sleeve are defined with an integrated automatic device, and the automatic integrated device includes at least one of the safety sleeve and the safety sleeve. During the assembly of the syringe, the integral terminal force-storing part formed integrally by accumulating elastic force and potential energy by deformation of the abutment action, at least one sleeve automatic coupling part formed on the safety sleeve, and at least one formed on the syringe And the syringe automatic docking part correspondingly corresponding to the sleeve automatic combining part, and when the corresponding binding is made, the integral terminal force storage part automatically releases the elastic potential energy. According to the injection self-destructing safety needle described in item 15 of the scope of the patent application, wherein the safety sleeve is defined with at least one assembly guide contraction device for compressing the integral terminal force storage portion, the safety sleeve is provided with the safety sleeve and When the syringe is combined, the action of accumulating elastic force potential energy is performed. The injection self-destructing safety needle as described in item 16 of the scope of the patent application, wherein at least one anti-self-destructing limit device is formed at one side of the assembly guide contraction device, which is used to prevent the automatic combination of the overall device from deviating and Causes self-destruction when dismantled. According to the injection self-destructing safety needle described in item 17 of the scope of the patent application, a two-way check limit portion is defined on the sleeve automatic coupling portion and the syringe automatic docking portion, and the two-way check limit portion includes a A sleeve upper end limit portion defined on the upper side of the sleeve automatic joint portion, a syringe upper end limit portion defined on the upper side of the syringe automatic butt portion, a sleeve lower end limit portion defined on the lower side of the sleeve automatic joint portion, And a lower limit portion of the syringe defined at the lower side of the automatic butt joint portion of the syringe is a safety protection mode for the safety sleeve to become a two-way back stop limit, and no reverse recovery action can be performed. The injection self-destructing safety needle as described in item 16 of the scope of patent application, wherein the integral terminal power storage portion includes at least one sleeve integral terminal power storage portion formed on the sleeve automatic coupling portion. The injection self-destructing safety needle as described in item 16 of the scope of patent application, wherein the integral terminal power storage portion includes at least one integral power storage portion of the syringe formed on the automatic docking portion of the syringe. The injection self-destructing safety needle according to item 17 of the scope of the patent application, wherein the assembly guide contraction device includes at least one sleeve guide contraction portion formed at an end of the security sleeve, and is provided for inward Compress the automatic docking part of the syringe. The injection self-destructing safety needle as described in item 21 of the scope of patent application, wherein the self-destructing self-destructing limit device includes at least one sleeve anti-destructing self-destructing limit portion located at a side of the sleeve guide and contracting portion. . The injection self-destructing safety needle as described in item 17 of the scope of the patent application, wherein the assembly guide contraction device includes at least one syringe guide contraction portion formed at the end of the syringe for outward compression The sleeve automatically joins. The injection self-destructing safety needle as described in item 23 of the scope of patent application, wherein the anti-dropping self-destructing limit device includes at least one syringe anti-dropping self-destructing limiting portion located at the side of the syringe guide contraction portion. . The injection self-destructing safety needle according to item 16 of the patent application scope, wherein at least one tapered assembly guide opening is defined on the assembly guide contraction device for assisting the safety sleeve and the The needle cylinder is aligned and assembled.