CN208877573U

CN208877573U - device for injection

Info

Publication number: CN208877573U
Application number: CN201820476461.XU
Authority: CN
Inventors: 杨一博
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2019-05-21
Anticipated expiration: 2028-04-04

Abstract

A device for injection, having a housing (1) and an actuating button (2), the actuating button having a flat portion (3) and an extension (4), the extension when the device is in a non-operating state The portion (4) is substantially completely housed within the housing (1). The utility model can reduce the overall length of the automatic injector in the non-operating state, thereby reducing the cost of packaging, transportation and storage, and at the same time improving the portability; avoiding the user's confusion that the protruding drive button cannot be directly pressed, so that the user can only inject Only when the lock is released will the drive button be found in a state of extending out of the casing and extending/pushing out from the rear end, thus constructing a more reasonable and complete user operation logic and greatly improving the user experience.

Description

Device for injection

Technical field

The utility model relates to drugs to supply field, more particularly to a kind of safe and reliable and non-damageable administration injection Device.

Background technique

Currently, drug supply field generated it is a variety of there is automation function to a certain degree, can in emergency It is immediately adjacent to the injection device of injection, such as the following prior art:

Document 1:CN1901957B is used for the device of syringe

Document 2:US7442185B2 automatic injector (Auto-injector)

A kind of automatic injector is disclosed in document 1, shell with aft section (inject before outbound course is) drives Dynamic button, tubulose driver and executing agency's sleeve.The aft section of the tubulose driver has multiple flexible tongues, each Flexible tongues all have hook and protrusion at outer end towards outside, and the protrusion has an inclined table Face.It is disposed with ring in the inside of the shell, the ring has a peripheral flange, which has and tubulose driver The corresponding shape of hook, when syringe does not inject state (or original state), the hook connects with the flange It closes, is moved forward with preventing tubulose driver opposite shell.There are two opposite for the aft section tool of executing agency's sleeve The rectangular slits of arrangement, form two pieces of protrusive boards of the aft section of executing agency's sleeve between notch, and the top edge of protrusive board will be with The inclined surface of tongue piece on tubulose driver contacts, and as executing agency's sleeve moves backward and makes hook inside backward It is mobile, and freely through the inside for arriving the peripheral flange, if pressing activation button downwards tubulose is driven at this time Device opposite shell and move forward, so that automatic injection be excited to act.

Document 2 also discloses a kind of automatic injector, has subsequent shell (inject before outbound course is), and by It is interior to being arranged with according to this outside: compressed spring, plunger, tubular body and tubular sleeve.Wherein the back top of tubular body is to drive Dynamic button.When tubular sleeve moves backward, the locking to tubular body and its activation button forward movement can be released, at this time Activation button can move forward into the inner space of the tubular sleeve and move further along, at the same time tubular body one Body moves forward, and the front end until releasing tubular body, which releases, locks the jacket of plunger front end, and in the effect of compressed spring Under, plunger goes out tubular body further along, so that automatic injection be excited to act.

However as above-mentioned, in existing automatic injector, press down on and excite especially by proximal top activation button In the automatic injector product of action of injection.When syringe, which is in, does not inject state (or original state), activation button phase The shell of aft section is in always and stretches out shell and rear end stretching/ejection state.

Such design and construction can generate problems: first is that increasing the totality of automatic injector when not injecting state Length increases packaging, transport and carrying cost, while reducing portability；Second is that user, when using syringe, discovery is driven Dynamic button stretches out shell and rear end stretching/ejection, it is easy to expect tasting and try to press, however realize the activation button without Method is directly depressed (the locking principle based on the injection needle shield in document 1, document 2), and this aspect will cause user's It is puzzled, on the other hand if user firmly presses by force, it will lead to activation button and enclosure interior tubulose driver etc. The damage or dislocation of component, so as to cause the damage of entire syringe.

Utility model content

It should be noted that " not injecting state " referred to herein is shape when injection device does not carry out " injection operation " State, " injection operation " here includes but is not limited to: the solution that compresses, inject locking state of the injection device head in injection site It removes, press activation button with device moving back from injection site after the completion of exciting automatic injection, medical fluid to be output to injection site, injection Out.

Aiming at the problems existing in the prior art, the utility model provides a kind of safe and reliable and non-damageable administration Injection device, described device have shell 1 and activation button 2, and the activation button 2 has planar portions 3 and extension 4, special Sign is: when described device is in and does not inject state, the extension 4 is substantially all to be accommodated in the shell 1.

Further, described device also has executing agency's sleeve 5, the aft section of executing agency's sleeve 5 it is upper Edge can be contacted with extension 4.

Further, the extension 4 has lower convex portion 15 and fovea superior part 16, and described device also has executing agency Sleeve 5 and tubulose driver 6, executing agency's sleeve 5 have convex part 14 and recessed portion 13, the convex part 14 Top edge can be contacted with the fovea superior part 16；The tubulose driver 6 has inclined surface 10, the recessed portion 13 Top edge can be contacted with the inclined surface 10.

Further, when carrying out injection operation, the convex part 14 connects with the fovea superior part 16 of extension 4 Touching, almost simultaneously in the contact of the recessed portion 13 and the inclined surface 10.

Further, when carrying out injection operation, the convex part 14 connects with the fovea superior part 16 of extension 4 Touching, be earlier than the contact of the recessed portion 13 and the inclined surface 10.

Further, in two faces respectively to contact with each other, at least one of which is inclined surface.

Further, described device also has executing agency's sleeve 5, and as executing agency's sleeve 5 moves back Dynamic, the extension 4 stretches out the shell 1 upwards；It is described if abandoning injecting after the extension 4 stretches out shell 1 upwards Activation button 2 recycles, so that extension 4 be made to be accommodated in the shell 1 again.

Further, the activation button 2 is recycled under the effect of gravity or is recycled under the action of magnetic attraction.

Further, with the magnetic attraction effect, and device is in when not injecting state, will be described Device, which is inverted, makes activation button 2 be located at the lower section of whole device, then activation button 2 in the case where the magnetic attraction acts on, be not easy from Cunning stretches in shell 1.

The utility model also provides a kind of injecting method of application device comprising following steps:

When a. not injecting, the extension 4 of activation button 2 is substantially all to be accommodated in the shell 1；

B. the front end of device is compressed at injection site, the extension 4 of activation button 2 stretches out the shell 1；

C. the front end of holding meanss compressing at injection site, while the activation button 2 is pressed, excitation automatic injection Movement；

D. in step c, if abandoning injecting, extension 4 is accommodated in shell 1 again automatically.

The utility model has the beneficial effect that

(1) the utility model can reduce the overall length of automatic injector when not injecting state, and then reduce packaging, fortune Defeated and carrying cost, while improving portability.

(2) the utility model can be avoided user and attempt the case where pressing down on activation button because of curiosity, avoid forcing Property by pressure, the damage or dislocation of activation button and injector housing internal component；

(3) the utility model, which can be avoided user and generate the activation button stretched out and can not directly depress, starts action of injection Puzzled, so that user is only in injection lock release, (injection needle shield abuts simultaneously in injection site in such as background technology document 1 When by being compressed into shell) in the case where, it can just find that activation button is in and stretch out shell and rear end stretching/ejection shape State greatly improves user experience to construct more reasonable perfect user's operation logic.

(4) the utility model can make automatically activation button in the case where injecting lock release and user and abandoning injection Again return to primitive age receiving state.

Detailed description of the invention

Fig. 1 is 1 shell side schematic top plan view of the utility model embodiment.

Fig. 2 is 1 activation button side schematic top plan view of the utility model embodiment.

When Fig. 3 is that the utility model embodiment 1 does not inject state, signal is overlooked in the side that activation button is matched with shell Figure.

Fig. 4 is the schematic diagram of executing agency's sleeve in the utility model embodiment 1.

Fig. 5 is the schematic diagram of tubulose driver in the utility model embodiment 1.

Fig. 6 is activation button in the utility model embodiment 1, the exploded pictorial of tubulose driver and executing agency's sleeve Figure.

Fig. 7 be activation button in the utility model embodiment 1, tubulose driver, executing agency's sleeve and outer casing inner wall to The combination diagram of inward flange (shell is not shown).

Fig. 8 is that the hook of tubulose driver is interconnected with outer casing inner wall inward flange in the utility model embodiment 1 Schematic diagram (shell is not shown).

Fig. 9 is that the hook of tubulose driver is interconnected with outer casing inner wall inward flange in the utility model embodiment 1 Cut away view (showing shell).

Figure 10 a is activation button, tubulose driver, executing agency's set when not injecting state in the utility model embodiment 1 The cut away view of cylinder, shell and its inner wall inward flange mutual cooperation relationship.

When Figure 10 b is that 1 executing agency's sleeve of the utility model embodiment moves backward, convex portion and activation button thereon The schematic diagram of position when fovea superior part just contacts.

When Figure 10 c is that 1 executing agency's sleeve of the utility model embodiment moves backward, activation button is driven to move back together Dynamic, when activation button stretches out shell and the hook of tubulose driver is freely through position when the inside for arriving inward flange Schematic diagram.

Figure 11 is the extension in the utility model embodiment 1, on the convex part of executing agency's sleeve, with activation button The part of the upper recess split-phase contact in portion, is set as the schematic diagram of inclined surface.

Figure 12 is 2 shell side schematic top plan view of the utility model embodiment.

Figure 13 is the front view of 2 activation button of the utility model embodiment.

Figure 14 a is activation button, tubulose driver, executing agency's set when not injecting state in the utility model embodiment 2 Cylinder, plunger, compressed spring and shell mutual cooperation relationship schematic diagram.

When Figure 14 b is that executing agency's sleeve moves backward in the utility model embodiment 2, activation button is driven together backward Mobile, activation button stretches out the schematic diagram of shell.

Figure 14 c is that activation button is pressed downwards in the utility model embodiment 2, and extension enters executing agency's sleeve The schematic diagram of the inner space of aft section top edge.

Specific embodiment

Embodiment 1:

It is the first embodiment of the utility model such as Fig. 1-Figure 11.

For the device of injection, before there is described device shell 1(to be to inject outbound course, shell is illustrated only in Fig. 1 Aft section) and activation button 2, the activation button 2 has planar portions 3 and an extension 4, the extending direction of extension and flat The in-plane of face is substantially orthogonal.The extension 4 has multiple rectangular slits positioned opposite, is formed and is extended between notch Multiple protrusive boards in portion 4, protrusive board include the lower convex portion 15 at center and the fovea superior part 16 in outside.

Automatic injection of the activation button 2 for booster injection device acts.The device further includes executing agency's sleeve 5 Its aft section is only shown in (only showing its aft section in Fig. 4) and tubulose driver 6(Fig. 5), the tubulose driving The aft section of device 6 has multiple flexible tongues 7, and each flexible tongues 7 have at outer end towards 8 He of hook of outside Protrusion 9, the protrusion 9 are located at 8 lower section of hook and have an inclined surface 10.

It is disposed with inward flange 11 in the inside of the shell 1, which has the hook-type with tubulose driver 6 The corresponding shape of object 8, when syringe does not inject state (or original state), the hook 8 and the inward flange 11 engagements, are moved forward with preventing 6 opposite shell 1 of tubulose driver.

The aft section of executing agency's sleeve 5 has multiple rectangular slits 12 positioned opposite, is formed between notch Multiple protrusive boards of the aft section of executing agency's sleeve 5, protrusive board include the recessed portion 13 at center and the convex part 14 in outside, The convex part 14 has flexibility.It the top edge of the recessed portion 13 can be with the inclination of the tongue piece on tubulose driver 6 Surface 10 contacts；The top edge of the convex part 14 can be contacted with the fovea superior part 16 of the extension 4 of activation button 2.

When action of injection to be executed, on the one hand, as executing agency's sleeve 5 moves backward, so that executing agency's sleeve 5 The top edge of convex part 14 contacted with the fovea superior part 16 of the extension 4 of activation button 2, thus make activation button 2 with Executing agency's sleeve 5 is moved backward and is moved backward, so that the extension 4 of activation button 2 stretches out shell 1 upwards；Separately On the one hand, as executing agency's sleeve 5 moves backward, so that the top edge of the recessed portion 13 of executing agency's sleeve 5 and tubulose The inclined surface 10 of tongue piece on driver 6 contacts, to make hook 8 move inward backward, and freely through described in The inside of inward flange 11, if the activation button 2 that extension 4 has stretched out shell 1 is pressed downwards at this time, activation button 2 Lower convex portion 15 is able to enter the inner space of the convex part 14 of executing agency's sleeve 5, and makes convex under activation button 2 Part 15 is in contact with the upper limb of the aft section of tubulose driver 6, and tubulose driver 6 is in the lower convex portion 15 of activation button 2 Under the action of opposite shell 1 and move forward, so that automatic injection be excited to act.

Preferably, as executing agency's sleeve 5 moves backward, the top edge of convex part 14 and the extension of activation button 2 The fovea superior part 16 in portion 4 contacts, almost simultaneously in the top edge of the recessed portion 13 of executing agency's sleeve 5 and tubulose driver 6 On tongue piece inclined surface 10 contact；

It is further preferable that as executing agency's sleeve 5 moves backward, top edge and the activation button 2 of convex part 14 The fovea superior part 16 of extension 4 contacts, top edge earlier than the recessed portion 13 of executing agency's sleeve 5 and tubulose driver 6 On tongue piece inclined surface 10 contact；

Preferably, the fovea superior part 16 on the convex part 14 of executing agency's sleeve 5, with the extension 4 of activation button 2 The part being in contact is set as inclined surface (inside side inclination)；Or the fovea superior part of the extension 4 in activation button 2 On 16, the part being in contact with the convex part 14 of executing agency sleeve 5 is set as inclined surface (outside side inclination)；More For preferably: the fovea superior part 16 of the extension 4 of the convex part 14 and activation button 2 of executing agency's sleeve 5, in the two phase Mutually matched inclined surface is respectively set in the part of contact, covers so that the extension 4 of activation button 2 enters executing agency The space of the inside of cylinder 5.

When moved backward with executing agency's sleeve 5, the extension 4 of activation button 2 stretches out shell 1 upwards, but user determines When abandoning injection surely, the forward movement of executing agency's sleeve 5 returns to initial position (not injecting position when state), activation button 2 Extension 4 be accommodated in shell 1 again, hook 8 engages with inward flange 11 again.

Preferably, the activation button 2 recycles under gravity, so that it is outer to be accommodated in extension 4 again automatically In shell 1；It is highly preferred that it is attached to be in contact in the lower convex portion 15 of activation button 2 with the upper limb of the aft section of tubulose driver 6 Closely and/or the convex part 14 of executing agency's sleeve 5 be in contact with the fovea superior part 16 of the extension 4 of activation button 2 it is attached Closely, mutual corresponding magnetic metal material and magnetic material, or reciprocal correspondence and the opposite polarity magnetism of vicinal face are set Material is accommodated in the extension 4 of activation button 2 again in shell 1 automatically by magnetic attraction.The magnetic material can be Magnet, rubber magnet etc. can generate the material of magnetic attraction.It can not only make oneself of extension under the action of the magnetic attraction It is dynamic to store again, additionally it is possible to which that, when not injecting state, when the inversion of the rear end of syringe is downward, activation button 2 is not easy from outer Cunning stretches in shell 1.Here " be not easy from shell 1 cunning stretch " it also will be understood that are as follows: even if activation button 2 be in from Cunning stretches the state got off in shell 1, can be also recovered in shell 1 under the action of magnetic attraction.

Preferably, there are four protrusive boards for the tool of extension 4, and there are four protrusive boards, tubulose driver for the corresponding tool of executing agency's sleeve 5 There are four flexible tongues 7 for 6 aft section tool；But the utility model is not limited thereto, the number of above-mentioned protrusive board and flexible tongues Amount can also be provided accordingly to two or three or more situations, as long as the selection of quantity can be realized between each component Correspond to each other the effect of contact with effect.

It should be noted that being said in above-described embodiment 1 mainly for the related content of the utility model activation button It is bright.It, can be by open source literature CN1901957B for automatically injecting, preventing the accidentally concrete mode of the realizations such as excitation and component setting In related content be introduced into herein, thus repeat no more.

Embodiment 2:

It is second of embodiment of the utility model such as Figure 12-Figure 14.

Unlike the first embodiment, the extension 4 of activation button 2 does not have lower convex portion 15 and upper recess in embodiment 2 Divide 16(as shown in figure 13).Inside the rear end of 1 aft section of shell, the round plate 17 with center position is described Round plate 17 is fixedly connected with (as shown in figure 12) with the inner wall of the shell by multiple radial parts radially radiated.Tubulose drives Its aft section is only shown in dynamic device 6(Figure 14 a-14c) in there is plunger 18, its is only shown in plunger 18(Figure 14 a-14c Aft section) in only showing its aft section in compressed spring 19(Figure 14 a-14c), 5 sets of executing agency's sleeve in pipe The outside of shape driver 6 is simultaneously located in shell 1.

As shown in figures 14a, the upper end of 6 aft section of tubulose driver, the lower surface of a part and round plate 17 It abuts against, another part then radially exceeds the outer ledge of 17 lower surface of round plate, the compressed spring 19 and round plate 17 Middle lower surface abut against.

When action of injection to be executed, on the one hand, as executing agency's sleeve 5 moves backward, so that executing agency's sleeve 5 The top edge of aft section contacted with the extension 4 of activation button 2, to make activation button 2 with executing agency's sleeve 5 It moves backward and moves backward, so that the extension 4 of activation button 2 stretches out shell 1 upwards；If by extension 4 at this time Activation button 2 through stretching out shell 1 is pressed downwards, and the extension 4 of activation button 2 is able to enter executing agency's sleeve 5 The inner space of aft section top edge and move further along, and make lower end and the tubulose of the extension 4 of activation button 2 In the end of 6 aft section of driver, radially a part beyond 17 following table outer ledge of round plate is abutted against, and tubulose drives Dynamic device 6 under the action of extension 4 of activation button 2 opposite shell and move forward, and in plunger 18 and compressed spring 19 Under effect, excitation automatic injection movement is completed.

When moved backward with executing agency's sleeve 5, the extension 4 of activation button 2 stretches out shell 1 upwards, but user determines When abandoning injection surely, the forward movement of executing agency's sleeve 5 returns to initial position (not injecting position when state), activation button 2 Extension 4 be accommodated in shell 1 again.

Preferably, the lower end phase in the top edge of 5 aft section of executing agency's sleeve, with the extension 4 of activation button 2 The part of contact is set as inclined surface (inside side inclination)；Or the lower end of the extension 4 in activation button 2, and it holds The part that the top edge of 5 aft section of row mechanism sleeve is in contact is set as inclined surface (outside side inclination)；It is more highly preferred to Ground is: mutually matched inclined surface is respectively set in the part that the two is in contact, in favor of the extension 4 of activation button 2 Into the space of the inside of executing agency's sleeve 5.

Preferably, the activation button 2 recycles under gravity, so that it is outer to be accommodated in extension 4 again automatically In shell 1；It is highly preferred that the top edge of the aft section in the lower end and executing agency's sleeve 5 of the extension 4 of activation button 2 Near being in contact, mutual corresponding magnetic metal material and magnetic material, or reciprocal correspondence and vicinal face polarity are set Opposite magnetic material is accommodated in the extension 4 of activation button 2 again in shell 1 automatically by magnetic attraction.The magnetism Material can generate the material of magnetic attraction for magnet, rubber magnet etc..It can not only make under the action of the magnetic attraction Extension is stored again automatically, additionally it is possible to when not injecting state, when the inversion of the rear end of syringe is downward, and activation button 2 It is not easy the cunning from shell 1 to stretch.Here " be not easy from shell 1 cunning stretch " it also will be understood that are as follows: even if driving Button 2 is in the cunning from shell 1 and stretches the state got off, and can be also recovered in shell 1 under the action of magnetic attraction.

It should be noted that being said in above-described embodiment 2 mainly for the related content of the utility model activation button It is bright.It, can be by open source literature for automatically injecting, preventing the accidentally concrete mode of the realizations such as excitation and component setting Related content in US7442185B2 is introduced into herein, thus is repeated no more.

In addition, when using the injection device of the utility model, the injecting method that is generallyd use, comprising the following steps:

B. the front end of device is compressed at injection site, extension 4 stretches out the shell 1；

D. in step c, if abandoning injection (if do not pressed activation button 2, and leaving device at injection site), extend Portion 4 is accommodated in again automatically in shell (1).

Although in addition, having shown that and describing several embodiments and the preferred implementation side of the utility model general plotting Formula, but it should be appreciated by those skilled in the art in the situation for the principle and spirit for not departing from the utility model general plotting Under, it can change these embodiments, the general plotting of the utility model is defined by the claims and their equivalents.

Claims

1. A device for injection having a housing (1) and a drive button (2) having a flat portion (3) and an extension (4), characterized in that: When the device is in an uninjected state, the extension (4) is housed in the housing (1).

2. A device according to claim 1, wherein the device further has an actuator sleeve (5), the upper edge of the rear part of which can be brought into contact with the extension (4).

3. Device according to claim 2, wherein the extension (4) has a lower convex part (15) and an upper concave part (16), the device also has an actuator sleeve (5) and a tubular driver (6), the actuator sleeve (5) has an upper convex part (14) and a lower concave part (13), and the upper edge of the upper convex part (14) can be in contact with the upper concave part (16) ; the tubular driver (6) has an inclined surface (10) with which the upper edge of the concave portion (13) can come into contact.

4. The device according to claim 3, wherein, during the injection operation, the contact of the upper convex portion (14) with the upper concave portion (16) of the extension (4) occurs almost simultaneously with the The concave portion (13) is in contact with the inclined surface (10).

5. Device according to claim 3, wherein said upper convex portion (14) comes into contact with said upper concave portion (16) of extension (4) earlier than said The concave portion (13) is in contact with the inclined surface (10).

6. The device of any one of claims 2-5, wherein at least one of the two surfaces in contact with each other is an inclined surface.

7. The device according to claim 1, wherein the device further has an actuator sleeve (5) and the extension (4) is upwards as the actuator sleeve (5) moves rearwards Extend the housing (1); after the extension (4) protrudes upward from the housing (1), if the injection is abandoned, the drive button (2) is retracted, so that the extension (4) is re-stored in the housing (1). inside the casing (1).

8. Device according to claim 7, wherein the actuating button (2) is retracted under the action of gravity or under the action of magnetic attraction.

9. The device according to claim 8, wherein, in the case of the magnetic attraction force, and the device is in an uninjected state, the device is turned upside down so that the drive button (2) is located below the entire device, Then, under the action of the magnetic attraction force, the driving button (2) is not easy to slide down from the casing (1).