CN110444097A - A kind of injection training device with voice prompt function - Google Patents
A kind of injection training device with voice prompt function Download PDFInfo
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- CN110444097A CN110444097A CN201910808696.3A CN201910808696A CN110444097A CN 110444097 A CN110444097 A CN 110444097A CN 201910808696 A CN201910808696 A CN 201910808696A CN 110444097 A CN110444097 A CN 110444097A
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- piston
- protective case
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- 238000002347 injection Methods 0.000 title claims abstract description 51
- 239000007924 injection Substances 0.000 title claims abstract description 51
- 230000001681 protective effect Effects 0.000 claims abstract description 45
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/285—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas
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- Medical Informatics (AREA)
- Medicinal Chemistry (AREA)
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- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a kind of injection training device with voice prompt function, the shell including inner hollow are equipped with inner sleeve in shell, have radially extended boss on inner sidewall；Piston tube can be axially slidably inserted in inner sleeve, and the first end of piston tube, which impinges upon, can generate the sound for indicating that injection starts on boss；The first end of piston rod, which impinges upon, can generate the sound for indicating that injection is completed on boss, second end is removedly connected by locking structure with the inner sidewall of inner sleeve；STATEMENT OF FEDERALLY SPONSORED is set on piston rod, and the path section of the STATEMENT OF FEDERALLY SPONSORED and piston tube is interference fitted, the STATEMENT OF FEDERALLY SPONSORED and major diameter section phase clearance fit；Protective case at least can locally expose outside the port of the first end of shell, and the inner wall of protective case is equipped with the unlock piece that can unlock locking structure；First elastic component makes piston rod remain the trend mobile to housing first end；Second elastic component makes protective case remain that part exposes outside the trend of shell.It is few that the injection training device is related to component.
Description
Technical field
The invention belongs to technical field of medical instrument, and in particular to a kind of injection training cartridge with voice prompt function
It sets.
Background technique
The most common mode of administration such as vein, is subcutaneously or intramuscularly injected, the syringe quilt comprising drug by injection
For injecting, usually executed by the medical staff of trained mistake.In some cases, regular injections drug, patient are such as needed
Or other individual it is desirable that with syringe come self-injection or to other individual inject, had been developed that at present for automatically injecting
Device to allow patient voluntarily to inject.
It is this but since patient is usually neither nurse is also not the educated people in terms of medical device
Device for automatic injection must verified be using very simple and very safe.In particular it is important, that ensuring to utilize this
The device of sample injects the product of controlled dose, that is to say, that, it is necessary to completely injected.Therefore, the weight for user
Want be apprised of product have begun injection, substantially completely injection and user can be extracted from injection site
Device.
Chinese utility model patent such as Patent No. ZL201821209943.5 (notification number CN209149657U) is public
" automatic injection training device " opened, the injection training device include the first sounding part completed for indicating acupuncture treatment movement, institute
The first sounding part is stated set on piston rod upper end, the lower end of the percussion part is resisted against on the first sounding part, the first sounding part
Periphery wall be equipped with the first convex block, the fixed frame is equipped with the strip groove that extends from top to bottom, the first convex block energy edge
Strip groove is mobile, and hits and can make a sound both when the bottom wall of the first convex block and strip groove offsets；Syringe further includes using
In the second sounding part for indicating that injection is completed, the second sounding part is set in fixed frame and covers in the piston tube, the
Two sounding parts are equipped with the second torsional spring, and the second sounding part has to become around what own axes rotated under the effect of the second torsional spring
Gesture, and the rotation limiting structure of limitation the second sounding part rotation is equipped between the second sounding part and piston tube；Second sounding
Part is equipped with the second convex block, and circumferentially arranged with groove on the fixed frame, in the state of rotation limiting structure unlock, second is convex
Block rotate to the side wall with groove offset and the two shock make a sound.
It can be seen that the piston rod and tube body (i.e. piston tube) of the patent only have the function of simulated injection process, about
The auditory tone cues of the injection training device, it is necessary first to the first sounding part and the second sounding part are set, and also need to configure many
The component matched with the first sounding part and the second sounding part, causing injection training device to relate generally to, component is more, and structure is multiple
It is miscellaneous, and component also results in the high failure rate of equipment more.
Summary of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide a kind of piston rod and piston tubes not
Be only capable of simulated injection process, can also sounding and global facility is few, structure simply has voice prompt function injection is instructed
Practice device.
The technical scheme of the invention to solve the technical problem is: a kind of injection instruction with voice prompt function
Practice device, including
Shell, inner hollow, the shell have a first end and a second end along its axial direction；
It is characterized in that, being equipped in the shell
Inner sleeve, it is axially extending along shell, and boss is radially extended on the inner sidewall of the inner sleeve；
Piston tube can be axially slidably inserted in inner sleeve, and the boss of the inner sleeve is set to piston tube the towards shell
In the mobile movement routine in one end, the first end of the piston tube, which impinges upon, can generate the sound for indicating that injection starts on boss；
Piston rod can be axially slidably set in inner sleeve, and the first end of the piston rod can axially slidably be inserted in work
It fills in pipe, and the first end of the piston rod impinges upon the sound that expression injection completion can be generated on boss, second end passes through
Locking structure is removedly connected with the inner sidewall of inner sleeve；
STATEMENT OF FEDERALLY SPONSORED is set on piston rod, and along the direction of insertion of piston rod, the piston tube is divided into the path section that internal diameter does not wait
With major diameter section, the path section of the STATEMENT OF FEDERALLY SPONSORED and piston tube is interference fitted, the STATEMENT OF FEDERALLY SPONSORED and major diameter section phase clearance fit；
Protective case, can slidably be sheathed in put on, and at least part can expose outside shell first end port, it is described
The inner wall of protective case is equipped with the unlock piece that can unlock locking structure；
First elastic component acts on piston rod the trend for making piston rod remain mobile to housing first end；
Second elastic component, acting on protective case makes protective case remain that part exposes outside the trend of shell.
The unlocking structure can have a variety of structures form, it is preferable that and the lateral wall of the piston rod is equipped with elastic arm,
The elastic arm is equipped with outwardly protruding limited block, offers on the inner sidewall of the inner sleeve and is buckled in interior limit for limited block
Position hole, the elastic arm, limited block and limit hole constitute the locking structure.
The unlock piece can have a variety of structures form, it is preferable that the unlock piece is that can squeeze limited block to come closer
And the crushing block disengaged with limit hole, the crushing block are set on the inner wall of protective case and protrude inwardly from, the crushing block energy
It protrudes into limit hole.
Preferably, the face that the crushing block is in contact with limited block is designed to inclined-plane.In this way, being moved to limit in crushing block
When at hole, crushing block protrudes into limit hole because of the certain restoring force of itself to press inward against limited block.
In order to enable crushing block can preferably extend into limit hole and (have better restoring force), the protective case packet
Include the adjutage for being sheathed on sleeve on interior set and extending from the top of sleeve to the second end side of shell, crushing block is located at pair
It answers on the tip inside wall of adjutage.
In order to which the motion track to protective case is oriented to, the sliding block being slidably matched is equipped between the inner sleeve and protective case
With the first guide groove, the sliding block can be slidably set in the first guide groove, axis direction of first guide groove along shell
Extend.
In order to which the motion track to piston tube is oriented to, the guiding being slidably matched is equipped between the inner sleeve and piston tube
Block and the second guide groove, the guide pad can be slidably set in the second guide groove, axis of second guide groove along shell
Direction extends.
It is reused to enable to inject training device, which further includes that piston rod can be pushed to reset
Axially extending push rod, one end of the push rod successively can axially penetrate protective case, inner sleeve, piston tube and with piston rod first
End offsets.So after the completion of injection, piston rod and piston tube is set to be reset to original state by push rod.
Enter impurity in injection training device in order to prevent, which further includes removedly covering to be located at shell
The other end of the cap body of first end, the push rod is set in the cap body, and push rod setting is not easy to lose in cap body, and in nut cap
Piston rod is pushed while body, is killed two birds with one stone, and it is convenient to operate.
Simply, the STATEMENT OF FEDERALLY SPONSORED is the piston being arranged on the piston rod to structure.
Compared with prior art, advantages of the present invention: piston rod and piston tube are to inject portion indispensable in training device
Part, to the process of simulated injection, and piston tube and piston rod multi-purpose content of the invention, can not only simulated injection process, also
Has the function of sounding, the present invention only needs that inner sleeve (no longer needing to the component that other cooperation sounding are arranged) is arranged again, and puts on inside
The boss being located on piston rod and piston tube movement routine is set, in conjunction with two internal diameters being arranged in piston tube it is not equal it is big,
The cooperation of STATEMENT OF FEDERALLY SPONSORED on path section and piston rod can be such that piston tube impinges upon and issue the prompt injection of the first sound on boss and open
Begin, piston rod, which impinges upon, issues rising tone prompt injection completion on boss, so that injection training device is compact-sized, is related to
Component is few, reduces cost and can be reduced out of order probability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the decomposition diagram of Fig. 1；
Fig. 3 is the decomposition diagram of the part A of Fig. 2；
Fig. 4 is the structural schematic diagram of the piston rod in Fig. 3；
Fig. 5 is the structural schematic diagram of the inner sleeve in Fig. 3；
Fig. 6 is the structural schematic diagram of the piston tube in Fig. 3；
Fig. 7 is the structural schematic diagram of the protective case in Fig. 3；
Fig. 8 is the cross-sectional view (original state) of Fig. 1；
Fig. 9 is the cross-sectional view (original state) for taking away lid of Fig. 1；
Figure 10 is the cross-sectional view for taking away lid of Fig. 1 (protective case moves up and squeezes limited block and comes closer)；
Figure 11 is the cross-sectional view for taking away lid of Fig. 1 (piston tube, which impinges upon, issues the first sound on boss)；
(piston is moved to the bigger diameter end of piston tube and the boundary of path section to the cross-sectional view for taking away lid that Figure 12 is Fig. 1
Place)；
Figure 13 is the cross-sectional view for taking away lid of Fig. 1 (piston rod, which impinges upon, issues the rising tone on boss)；
Figure 14 is the cross-sectional view (protective case reset) for taking away lid of Fig. 1.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Fig. 1~14, the injection training device with voice prompt function of this preferred embodiment, including shell 1,
Inner sleeve 2, piston tube 3, piston rod 4, STATEMENT OF FEDERALLY SPONSORED 41, protective case 5, the first elastic component 61,62 and of the second elastic component are equipped in shell 1
Cap body 7.
Wherein 1 inner hollow of shell has a first end and a second end along its axial direction, in the present embodiment, the first end of shell 1
For lower end, second end is upper end；Likewise, piston tube 3 hereinafter, piston rod 4 also have first end and second along axial
End, first end is lower end, and second end is upper end.
As shown in Fig. 2,3,5, inner sleeve 2 is axially extending along shell 1, and the side wall of inner sleeve 2 is equipped with outwardly protruding elastic buckles
Foot 21 offers on the side wall of shell 1 and is buckled in interior button hole 11 for button foot 21, by the fastening of button foot 21 and button hole 11 so that
Inner sleeve 2 and shell 1 are assembled together.Inner sleeve 2 and shell 1 can certainly be assembled integrally using other disassembly and assembly structures
Part.
As shown in Fig. 5,6,8, piston tube 3 can be axially slidably inserted in inner sleeve 2, i.e., piston tube 3 is axially prolonged along inner sleeve 2
It stretches, is oriented to for the motion track to piston tube 3, the guide pad 31 that is slidably matched and the are equipped between inner sleeve 2 and piston tube 3
Two guide grooves 22, guide pad 31 can be slidably set in the second guide groove 22, and the second guide groove 22 prolongs along the axis direction of shell 1
It stretches.In the present embodiment, guide pad 31 is set on the periphery wall of piston tube 3, and the second guide groove 22 is opened on the side wall of inner sleeve 2.
As shown in Fig. 8~11, boss 23 is radially extended on the inner sidewall of inner sleeve 2, which is set to piston tube 3
In the movement routine mobile towards the first end of shell 1, the energy when the first end (i.e. lower end) of piston tube 3 impinges upon on boss 23
The sound heard is generated, injection is prompted to start.
As shown in Fig. 8~14, piston rod 4 can be axially slidably set in inner sleeve 2, the second end (i.e. upper end) of piston rod 4
Removedly it is connected by locking structure with the inner sidewall of inner sleeve 2, the first end (i.e. lower end) of piston rod 4 can be inserted axially slidably
In piston tube 3, and the lower end of piston rod 4 impinges upon that the sound heard can be also generated on boss 23, and injection is prompted to complete.
As shown in Fig. 4,8~14, the lower part of piston rod 4 is arranged with STATEMENT OF FEDERALLY SPONSORED 41, along the direction of insertion of piston rod 4, piston
Pipe 3 divides the path section 32 and major diameter section 33 not waited for internal diameter, and the internal diameter of major diameter section 33 is greater than the internal diameter of path section 32, the STATEMENT OF FEDERALLY SPONSORED
41 are interference fitted with the path section 32 of piston tube 3, and it can be silica gel part, to make to live that in the present embodiment, STATEMENT OF FEDERALLY SPONSORED 41, which is piston,
Plug is when being located at path section 32, piston tube 3 and 4 synchronizing moving of piston rod.For piston when being located at major diameter section 33, piston rod 4 can be with
Opposing pistons pipe 3 moves axially.
As shown in Fig. 8~14, the upper end of inner sleeve 2 is inserted with fixing sleeve 8 of its opposite fixed setting, inside piston rod 4
Hollow and inner sidewall is equipped with step 42, and the first elastic component 61 is spring and both ends bear against fixing sleeve 8 and step 42, so that
Obtain the trend that piston rod 4 remains mobile to 1 first end of shell；In addition, having extended downwardly axis on top in the fixing sleeve 8
To the guide rod 81 protruded into piston rod 4, the first elastic component 61 is sheathed on the guide rod 81.
As shown in figure 9, protective case 5 can be slidably at the port of the first end of shell 1, in the initial state, protection
At least part exposes outside shell 1 to set 5 under the action of following second elastic component 62.In the present embodiment, protective case 5 can slidably cover
In inner sleeve 2, i.e., protective case 5 is at the port for the first end for being slidably set to shell 1 by inner sleeve.For to protective case 5
Motion track is oriented to, and the sliding block 24 being slidably matched and the first guiding are equipped with as shown in Fig. 5,7, between inner sleeve 2 and protective case 5
Slot 51, sliding block 24 can be slidably set in the first guide groove 51, and the first guide groove 51 extends along the axis direction of shell 1.This reality
It applies in example, sliding block 24 is set on the lateral wall of inner sleeve 2, and the first guide groove 51 is opened on the side wall of protective case 5.
In the present embodiment, as shown in Fig. 5,9, the lateral wall of inner sleeve 2 is equipped with block holding part 25, and the second elastic component 62 is bullet
Spring, the spring are placed in protective case 5, and one end and the bottom wall of protective case 5 offset, and the other end extends protective case 5 and block holding part 25
It offsets, so that protective case 5 remains that part exposes outside the trend of the port of the first end of shell 1.
Locking structure between above-mentioned piston rod 4 and inner sleeve 2 is as follows: in the present embodiment, as shown in Fig. 4,5,8, and piston
The lateral wall of bar 4 be equipped with elastic arm 43, it is contemplated that the stationarity of stress, elastic arm 43 at least there are two, each 43 energy of elastic arm
The axis of opposing pistons bar 4 is radially outward opened or is inwardly collapsed, and elastic arm 43 is equipped with outwardly protruding limited block 44, inner sleeve
It is offered on 2 inner sidewall and is buckled in interior limit hole 26,26 structure of elastic arm 43, limited block 44 and limit hole for each limited block 44
At above-mentioned locking structure.
After making limited block 44 be detached from limit hole 26, piston rod 4 can move down under the effect of the first elastic component 61, protect
Sheath 5 is equipped with the unlock piece that can unlock above-mentioned locking structure, and as shown in Fig. 7~10, which is that can squeeze limited block 44
The crushing block 52 for coming closer and disengaging with limit hole 26, the crushing block 52 are set on the inner wall of protective case 5 and inwardly dash forward
Out, the quantity of crushing block 52 and the quantity of limited block 44 match.In order to preferable squeezing effect, the crushing block 52 and limit
The position face that is in contact of block 44 is designed to inclined-plane 521, the inclined-plane 521 make the thickness of crushing block 52 from second end to the first end side gradually
It thickens, in the present embodiment, which tilts to the direction far from 1 axis of shell from bottom to top, referring to Fig. 8.
In this way, crushing block 52 protrudes into limit because of the certain restoring force of itself when crushing block 52 is moved at limit hole 26
Position hole 26 is to press inward against limited block 44.And continue to move up with protective case 5, the inclined-plane 521 on each crushing block 52 continues to push away
It moves corresponding limited block 44 radially-inwardly to draw close and disengage with limit hole 26, be unlocked from inner sleeve 2 to reach piston rod 4
Purpose.Meanwhile in order to enable crushing block 52 can preferably extend into limit hole 26 protection (i.e. with better restoring force)
Set 5 includes the sleeve 54 being sheathed in inner sleeve 2 and the adjutage 53 extended from 54 top of sleeve to the second end side of shell 1,
Crushing block 52 is located on the tip inside wall of corresponding adjutage 53.
As shown in Fig. 1,2,8, cap body 7 removedly covers the port for being located at 1 first end of shell, and being equipped in the cap body 7 can push away
The push rod 71 that piston bar 4 resets, one end of push rod 71 successively axially penetrate protective case 5, inner sleeve 2 and piston tube 3 and and piston
The lower end of bar 4 offsets, and the other end is fixed in the cap body 7, so while lid sets cap body 7, the promotion piston of push rod 71
Bar 4 resets, and a movement is able to achieve two functions and (plays the function of the exposed junction of protection protective cap 5 and push piston rod 4 multiple
The function of position), it is convenient to operate, and push rod 71 without being placed on other positions after using, not easy to lose.
The working principle of the injection training device of the present embodiment is as follows:
A, in the initial state, each component is as shown in figure 8, the part of protective case 5 exposes outside the port of the first end of shell 1,
There is spacing d, the piston on piston rod 4 is located in the path section 32 of piston tube 3, living between the lower end and boss 23 of piston tube 3
The lower end of stopper rod 4 offsets with push rod 71, and the upper end of piston rod 4 is connected by locking structure with the inner wall of inner sleeve 2, the first elastic component
61 are in pressured state, and the second elastic component 62 is in the nature for making protective case 5 overhanging；
B, as shown in figure 9, removing cap body 7；
C, so that protective case 5 is contacted skin and press skin, i.e., at this point, second end sidesway from 5 stress of protective case to shell 1
It is dynamic, while the second elastic component 62 is compressed, until the crushing block 52 on protective case 5 contacts and presses the limited block on piston rod 4
44 come closer, referring to Figure 10；
D, after the limit hole 26 that limited block 44 is detached from inner sleeve 2, piston rod 4 is downward under the action of the first elastic component 61
Mobile, because of the effect that the path section 32 of piston and piston tube 3 is interference fitted, piston tube 3 can be moved downward simultaneously with piston rod 4,
Until the lower end of piston tube 3 impinges upon on boss 23 and issue the first sound, auditory tone cues user injection starts, such as Figure 11 institute
Show, the spacing d between the lower end of piston tube 3 and boss 23 disappears at this time, and piston is still located at the path section 32 of piston tube 3 at this time
It is interior；
E, piston tube 3 is offseted by boss 23 and cannot continue to move down, but piston rod 4 is in the effect of the first elastic component 61
Under still move down, because of the effect that piston and path section 32 are interference fitted, piston rod 4 is slowly moved down by certain resistance
(simulated injection process), until piston is when being moved to 32 intersection of major diameter section 33 and path section of piston tube 3, referring to Figure 12, this
When piston rod 4 lower end away between boss 23 have space D；
F, piston rod 4 continues to move down under the effect of the first elastic component 61, until piston is fully located at the major diameter section of piston tube 3
In 33, the interference fit of piston and piston tube 3 disappears at this time, and piston rod 4 quickly moves down under the action of the first elastic component 61, directly
Lower end moment to piston rod 4 impinges upon on boss 23 and issues the rising tone, and auditory tone cues user, which injects, to complete, such as Figure 13 institute
Show, the lower end of piston rod 4 disappears away from the space D between boss 23 at this time；
G, after the completion of above-mentioned injection, protective case 5 is unclamped, disengages it with skin, protective case 5 is in the second elastic component
It is moved down under the action of 62, as shown in figure 14；
H, piston rod 4 then is pushed up with the push rod 71 in cap body 7, until the limited block 44 on piston rod 4 is moved to
At limit hole 26 in inner sleeve 2, elastic arm 43 drives limited block 44 to be flared out and be buckled in the limit hole 26 in inner sleeve 2 at this time
Interior, the first elastic component 61 is in pressured state, and after piston is moved to the path section 32 of piston tube 3, with piston rod 4
It moves up, piston tube 3 is because the interference fit with piston also moves up therewith, each member reset to original state at this time, such as
Shown in Fig. 8, to use next time.
Claims (10)
1. a kind of injection training device with voice prompt function, including
Shell (1), inner hollow, the shell (1) have a first end and a second end along its axial direction；
It is characterized in that, being equipped in the shell (1)
Inner sleeve (2), it is axially extending along shell (1), and boss (23) are radially extended on the inner sidewall of the inner sleeve (2)；
Piston tube (3) can be axially slidably inserted in inner sleeve (2), and the boss (23) of the inner sleeve (2) is set to piston tube (3)
In the movement routine mobile towards the first end of shell (1), the first end of the piston tube (3) is impinged upon and can be produced on boss (23)
The raw sound for indicating injection and starting；
Piston rod (4) can be axially slidably set in inner sleeve (2), and the first end of the piston rod (4) can be plugged axially slidably
In piston tube (3), and the first end of the piston rod (4) impinges upon the sound that expression injection completion can be generated on boss (23)
Sound, second end are removedly connected by locking structure with the inner sidewall of inner sleeve (2)；
STATEMENT OF FEDERALLY SPONSORED (41) is set on piston rod (4), and the direction of insertion along piston rod (4), the piston tube (3) is divided into internal diameter not
Deng path section (32) and major diameter section (33), the path section (32) of the STATEMENT OF FEDERALLY SPONSORED (41) and piston tube (3) is interference fitted, the linkage
Part (41) and major diameter section (33) phase clearance fit；
Protective case (5) can be slidably sheathed on inner sleeve (2), and at least part can expose outside the end of the first end of shell (1)
Mouthful, the inner wall of the protective case (5) is equipped with the unlock piece that can unlock locking structure；
First elastic component (61), acting on remains piston rod (4) to the movement of shell (1) first end
Trend；
Second elastic component (62), acting on protective case (5) makes protective case (5) remain that part exposes outside becoming for shell (1)
Gesture.
2. the injection training device according to claim 1 with voice prompt function, it is characterised in that: the piston rod
(4) lateral wall is equipped with elastic arm (43), and the elastic arm (43) is equipped with outwardly protruding limited block (44), the inner sleeve
(2) it is offered on inner sidewall and is buckled in interior limit hole (26), the elastic arm (43), limited block (44) for limited block (44)
The locking structure is constituted with limit hole (26).
3. the injection training device according to claim 2 with voice prompt function, it is characterised in that: the unlock piece
For that can squeeze the crushing block (52) that limited block (44) comes closer and disengages with limit hole (26), which is set to
It on the inner wall of protective case (5) and protrudes inwardly from, the crushing block (52) can be protruded into limit hole (26).
4. the injection training device according to claim 3 with voice prompt function, it is characterised in that: the crushing block
(52) the face being in contact with limited block (44) is designed to inclined-plane (521).
5. the injection training device according to claim 4 with voice prompt function, it is characterised in that: the protective case
(5) include the sleeve (54) being sheathed on inner sleeve (2) and extend from the top of sleeve (54) to the second end side of shell (1)
Adjutage (53), crushing block (52) are located on the tip inside wall of corresponding adjutage (53).
6. the injection training device according to claim 1 with voice prompt function, it is characterised in that: the inner sleeve
(2) sliding block (24) and the first guide groove (51) being slidably matched are equipped between protective case (5), the sliding block (24) can be slidably
In the first guide groove (51), first guide groove (51) extends along the axis direction of shell (1).
7. the injection training device according to claim 1 with voice prompt function, it is characterised in that: the inner sleeve
(2) guide pad (31) and the second guide groove (22) being slidably matched are equipped between piston tube (3), the guide pad (31) can slide
It is set in the second guide groove (22) dynamicly, second guide groove (22) extends along the axis direction of shell (1).
8. special with the injection training device of voice prompt function described in any claim according to claim 1~7
Sign is: further including the axially extending push rod (71) that piston rod (4) can be pushed to reset, one end of the push rod (71) can be successively
Axially penetrate protective case (5), inner sleeve (2), piston tube (3) and offset with the first end of piston rod (4).
9. the injection training device according to claim 8 with voice prompt function, it is characterised in that: further include that can tear open
Cover the cap body (7) for being located at shell (1) first end with unloading, the other end of the push rod (71) is set in the cap body (7).
10. there is described in any claim the injection training device of voice prompt function according to claim 1~7,
Be characterized in that: the STATEMENT OF FEDERALLY SPONSORED (41) is the piston being set on piston rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910808696.3A CN110444097B (en) | 2019-08-29 | Injection training device with sound prompt facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910808696.3A CN110444097B (en) | 2019-08-29 | Injection training device with sound prompt facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110444097A true CN110444097A (en) | 2019-11-12 |
| CN110444097B CN110444097B (en) | 2024-07-30 |
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