CN209378219U - A kind of liquid drug delivery devices - Google Patents
A kind of liquid drug delivery devices Download PDFInfo
- Publication number
- CN209378219U CN209378219U CN201821499982.3U CN201821499982U CN209378219U CN 209378219 U CN209378219 U CN 209378219U CN 201821499982 U CN201821499982 U CN 201821499982U CN 209378219 U CN209378219 U CN 209378219U
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- China
- Prior art keywords
- rotary part
- drug delivery
- delivery devices
- liquid drug
- upper housing
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Abstract
The utility model discloses a kind of liquid drug delivery devices, with relatively turnable upper housing and lower case, upper housing is embedded with rotary part, lower case is embedded with lower rotary part and is equipped with spring, it is characterized by: being equipped with stop limit structure, rotation amplitude is limited to avoid sliding surface disengaging when lower rotary part is rotated along first direction relative to upper rotary part, conduit moves along the vertical direction with lower rotary part, instantly when rotary part is rotated in a first direction, conduit is moved down；Lower rotary part along the second direction opposite with first direction relative to upper rotary part rotation when, spring reset and conduit moves up.Since there is no the abrupt releases to spring for the utility model, because without generating psychological hint or physiological stress to user, use process is milder, and easy to operate, user's acceptance level is higher.
Description
Technical field
The utility model relates to a kind of medical instruments, and in particular to a kind of liquid medicine conveying for pharmaceutical conveying
Device.
Background technique
Fog inhalation therapy is that drug is dispersed into small droplet or particle with atomising device, it is made to be suspended in gas
In, and enter respiratory tract and intrapulmonary, achieve the purpose that clean air flue, humidifying airway, local treatment and systemic therapy.Common mist
Makeup is equipped with manual blast atomizer, metered dose inhaler, Diskus etc..Wherein, metered dose inhaler is because having quantitative, operation
Simply, easy to carry, can be used, need not periodically sterilize at any time, without cross infection in hospital problem the advantages that and receive an acclaim.It is quantitative to inhale
Enter device to be usually made of medicine tin, suction line, quantitative valve, the jet pipe sealed.A kind of method be using spring as energy come
Conveying and the atomized spray of drug are realized in source.
For example, US patent publication US2009/0114215A1 discloses a kind of atomizer, have built in one
Interchangeable fluid medication container, one can the mobile suction line of relative liquid drug container, check valve, pressure chamber, nozzle；Mist
Changing device has relatively turnable upper housing and lower case, and upper housing is embedded with rotary part, and lower case inner sliding sleeve has backspin
Rotation member is simultaneously equipped with spring, and upper rotary part and lower rotary part inner wall are respectively equipped with mutually matched sliding surface, so as to one
When a direction rotates, lower rotary part is far from upper rotary part and compressed spring；Equipped with lock piece, instantly rotary part and upper rotation
When the sliding surface of rotation member is detached from, lock piece limits lower rotary part.In use, relatively rotating upper and lower two parts, under making
Rotary part compressed spring, while suction line moves down, liquid enters pressure chamber through check valve, when the cunning of upper and lower rotary part
Dynamic emaciated face from when, lock piece limits lower rotary part；When injection, lower rotary part is discharged by push button, in spring
Under elastic force effect, lower rotary part resets rapidly, and suction line, which synchronizes, to be moved up, and keeps medical fluid quickly defeated by the kinetic energy of spring abrupt release
Jet stream or aerosol are formed out.
Above structure is the typical structure with spring as the liquid drug delivery devices in energy source, in such as soft mist atomization
In application, this class formation is generally used push type release key as triggering dress in device, needleless injector, nose spray device etc.
It sets, because those skilled in the art are generally, it is considered that such device needs relatively large energy by liquid medicine in very short time
It is built-in to be dispersed into droplet or aerosol form to enter human body and be absorbed by human body, thus need to make bullet using push type release
Spring moment is in free state.However, often being generated with apparent vibration or the sound to user when starting trigger device
Undesirable psychological hint or physiological stress cause user to reduce the acceptance of administration set, breathe in particular for cooperation
In the nebulization equipment used, it is desirable that enter suction condition while discharging drug, physiological stress will lead to use
Person is difficult to control breath cycle, causes undesirable stress reaction.Since such drug delivery device is generally used for chronic obstructive pneumonia
Or insulin treatment of diabetes mellitus, the Medicinal Trait with long-term high frequency time, user's shadow direct for the adaptability of drug delivery device
Ring whether treatment can smoothly be implemented, the such medicine delivery device of receiving of undesirable irritability multifrequency long-term for user time
Certain obstacle is formd with proper use of drug.
Therefore, it is necessary to be improved to the triggering mode of this kind of liquid drug delivery devices, produced to avoid to user
Raw undesirable physiological stress, improve user by degree.
Summary of the invention
The goal of the invention of the utility model is to provide a kind of liquid drug delivery devices, is improved by structure and solves existing dress
Set the vibration and the sound problem when middle triggering.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of liquid drug delivery devices, tool
There are a fluid medication container, a medicinal atomized injection structure, holds containing one with liquid medicine in the medicinal atomized injection structure
The conduit of device cooperation has relatively turnable upper housing and lower case, and upper housing is embedded with rotary part, and lower case is embedded
There is lower rotary part and be equipped with spring, upper rotary part and lower rotary part inner wall are respectively equipped with mutually matched sliding surface, make
It must descend rotary part when along first direction relative to upper rotary part rotation far from upper housing and compressed spring；Equipped with stop limit
Structure, the stop limit structure carry out rotation amplitude when lower rotary part is rotated along first direction relative to upper rotary part
Limit is transported to avoid the disengaging of the sliding surface of upper rotary part and lower rotary part, the conduit with lower rotary part along the vertical direction
Dynamic, when rotary part is rotated in a first direction instantly, conduit is moved down；Lower rotary part is along the second direction opposite with first direction
When relative to upper rotary part rotation, spring reset and conduit moves up.
In above-mentioned technical proposal, by the way that stop limit structure is arranged, so that the sliding of upper rotary part and lower rotary part
Can not be detached between face, be not in because the situation of spring moment freedom of entry state may be not present, in use it is biggish vibration or
The sound.In use, rotating backward by upper rotary part and the opposite of lower rotary part, medical fluid conveying is realized.It is revolved by control
Gyration, can control spring-compressed degree and piston conduit moves up and down distance, to control liquid pumping accordingly
Amount or output quantity realize the adjusting of drug output dose.
In above-mentioned technical proposal, the relative rotation angle of upper rotating mechanism and lower rotating mechanism is true according to the setting of sliding surface
Fixed, when being provided only with pair of sliding face, maximum, which relatively rotates angle and can be set into, is no more than 360 °；Correspondingly, it is arranged two pairs
When sliding surface, the rotation angle of relative rotation is advisable with 160 °~180 °；And if rotating angle one when 4 pairs of sliding surfaces are arranged
As less than 90 °.
In above-mentioned technical proposal, the stop limit structure is, in the sliding surface and lower rotary part of upper rotary part
Stopping block is set at the close end of sliding surface, and the end after stopping block constitutes positive stop lug boss, and wherein any one is rotated
The positive stop lug boss on stopping block and another rotary part on component cooperates, so that two positive stop lug boss are flat by stop
It contradicts each other after platform limit.
Alternatively, lower case block is arranged on the outer wall of lower case, upper housing gear is correspondingly arranged on the inner wall of upper housing
A part of block, upper housing is set in lower case, and lower case block and the cooperation of upper housing block constitute the stop limit knot
Structure.
Further technical solution is equipped with and is driven reverse mechanism, in upper rotary part and lower rotary part along first direction
After relatively rotating to stop position, both described reverse drive mechanism drivings relatively rotate in opposite direction.
The reverse drive mechanism is wind spring driving mechanism.Alternatively, the reverse drive mechanism is by motor as engine
Structure, by gear or screw rod as transmission mechanism.Motor herein can be using permanent-magnet linear stepper motor or planetary gear electricity
Machine.When using motor driven, rotational angle can be prevented by controller default control at this point, stop limit structure plays safety
Shield effect.The starting for being driven reverse mechanism it is strong and weak can also to detect respiratory air flow, such as when respiratory air flow arrival is set by sensor
Determine to start driving motor when threshold value.
When carrying out liquid medicine conveying using the aforesaid liquid medicine delivery device of the utility model, first make lower rotary part
Stop position is turned to along the relatively upper rotary part of first direction, spring is in compressive state in the process, and conduit moves down pumping
Imbibition body；Rotate lower rotary part relative to upper rotary part along the second direction opposite with first direction, release spring
Piston conduit moves up and exports drug from container to form jet stream or aerosol simultaneously；The stroke of conduit is 5~20mm, along second
The time of direction rotation was less than 5 seconds.
In the prior art, it is generally accepted that it is dispersed into droplet or aerosol form to fill liquid medicine in a very short period of time,
It needs to make spring moment be in free state using push type release.The utility model has been surprisingly found that, using rotating backward rather than
Abrupt release equally can achieve required effect.
In above-mentioned technical proposal, the stroke of conduit is related to single dosage, conduit diameter, generally, diameter 1~
5mm, 1~30mm of stroke, primary upper 1~500 microlitre of liquid measure；It is preferred that 1~3mm of diameter, 5~20mm of stroke, primary above liquid measure 2~
150 microlitres.
In above-mentioned technical proposal, the time coordination human body natural's respiratory rate relatively rotated in a second direction is determined, preferably
It is 0.5~3 second, it is highly preferred that being 1~2 second.
Since above-mentioned technical proposal is used, the utility model has the advantage that compared with prior art
1, the utility model overcomes the prejudice of the prior art, under the premise of not carrying out abrupt release to spring, passes through
It rotates backward and realizes liquid medicine conveying, achieve unexpected technical effect.
2, since the utility model is there is no abrupt release to spring, because without to user's generation psychological hint or
Physiological stress, use process is milder, easy to operate, and user's acceptance level is higher.
Detailed description of the invention
Fig. 1 is the device appearance figure of the utility model embodiment one；
Fig. 2 is the diagrammatic cross-section under a state of Fig. 1；
Fig. 3 is diagrammatic cross-section of the Fig. 1 under another state；
Fig. 4 is the perspective view of one first rotary part of embodiment；
Fig. 5 is the bottom view of one first rotary part of embodiment；
Fig. 6 is the perspective view of one second rotary part of embodiment；
Fig. 7 is the top view of one second rotary part of embodiment；
Fig. 8 to Figure 11 is sliding surface cooperation in the first rotary part (removal outer layer) and the second rotary part (removal outer layer)
The schematic diagram of state；
Figure 12 is the lower case structure chart in embodiment two；
Figure 13 is the upper housing structure chart in embodiment two.
Wherein: 1, fluid medication container；2, upper housing；3, lower case；4, conduit；5, upper rotary part；6, lower rotating part
Part；7, spring；8, sliding surface；9, stopping block；10, positive stop lug boss；11, lower case block；12, upper housing block.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment one: referring to shown in attached drawing 1~3, a kind of liquid drug delivery devices have a fluid medication container 1, one
Medicinal atomized injection structure, the conduit 4 in the medicinal atomized injection structure containing one with fluid medication container cooperation, having can
The upper housing 2 and lower case 3 of relative rotation, upper housing 2 are embedded with rotary part 5, and lower case 3 is embedded with lower rotary part 6
And it is equipped with spring 7, upper rotary part 5 and lower 6 inner wall of rotary part are respectively equipped with mutually matched sliding surface 8, so that lower rotation
Component 6 along first direction relative to upper rotary part 5 when rotating far from upper housing 2 and compressed spring 7.
Equipped with stop limit structure, referring to shown in attached drawing 4 to attached drawing 7, in the present embodiment, the stop limit structure is,
Stopping block 9 is respectively set at the close end of the sliding surface of the sliding surface and lower rotary part 6 of upper rotary part 5, stop is flat
End after platform constitutes positive stop lug boss 10, wherein on the stopping block on any one rotary part and another rotary part
Positive stop lug boss cooperation so that two positive stop lug boss are passing through limit of contradicting each other after stopping block.
Referring to attached drawing 8, when upper rotary part and lower rotary part relatively rotate to two positive stop lug boss and mutually contradict, reach
To the first settling position, at this point, spring is in compressive state；Fig. 9 is state when starting revolution；It is in returning back to shown in Figure 10
Between position state；Figure 11 is revolution halted state.In the present embodiment, 2 pairs of sliding surfaces, therefore, the angle of revolution are provided with
It is restricted to 177 °.
Wherein, rotary part is rotated in a first direction to when being stopped position limiting structure limit instantly, and conduit moves down therewith；Under
Rotary part along the second direction opposite with first direction relative to upper rotary part rotation when, spring reset and conduit moves up, by
This realizes the conveying of micro liquid drug.
In the present embodiment, by be arranged stop limit structure so that the sliding surface of upper rotary part and lower rotary part it
Between can not be detached from, be not in biggish vibration or the sound in use because the situation of spring moment freedom of entry state may be not present.
In use, rotating backward by upper rotary part and the opposite of lower rotary part, medical fluid conveying is realized.By controlling rotation angle
Degree, can control spring-compressed degree and piston conduit moves up and down distance, thus control accordingly liquid pumping amount or
Output quantity realizes the adjusting of drug output dose.
The revolution of the second rotation direction in the present embodiment, can be by user's manual drive, can also be anti-by being arranged
Turn driving mechanism realization.Setting is driven reverse mechanism, can guarantee medical fluid output effect with timely adjustment rotational speed.Reversion is driven
Motivation structure can be wind spring driving mechanism, can also be by motor as power mechanism, by gear or screw rod as transmission mechanism.This
The motor at place can use permanent-magnet linear stepper motor or planetary gear motor.When using motor driven, rotational angle can
With by controller default control, at this point, stop limit structure plays safety protection function.
Embodiment two: a kind of liquid drug delivery devices, primary structure are the same as example 1, referring to attached drawing 12 and attached
Figure 13, difference in this case is that, lower case block 11 is set on the outer wall of lower case 3, it is right on the inner wall of upper housing 2
Upper housing block 12 should be set, and a part of upper housing 2 is set in lower case 3, lower case block 11 and upper housing block 12
Cooperation constitutes the stop limit structure.
Claims (7)
1. a kind of liquid drug delivery devices have a fluid medication container, a medicinal atomized injection structure, described medicinal atomized
Conduit in injection structure containing one with fluid medication container cooperation, has relatively turnable upper housing and lower case, upper casing
It is embedded with upper rotary part in vivo, lower case is embedded with lower rotary part and is equipped with spring, in upper rotary part and lower rotary part
Wall is respectively equipped with mutually matched sliding surface, so that lower rotary part is separate when along first direction relative to upper rotary part rotation
Upper housing and compressed spring；It is characterized by: being equipped with stop limit structure, the stop limit structure is in lower rotary part along the
Rotation amplitude is limited to avoid the cunning of upper rotary part and lower rotary part when one direction is relative to upper rotary part rotation
Dynamic emaciated face from, the conduit moves along the vertical direction with lower rotary part, when rotary part is rotated in a first direction instantly, conduit
It moves down；When lower rotary part is rotated along the second direction opposite with first direction relative to upper rotary part, spring reset and conduit
It moves up.
2. liquid drug delivery devices according to claim 1, it is characterised in that: be equipped at least one set of mutual cooperation
Sliding surface.
3. liquid drug delivery devices according to claim 1, it is characterised in that: the stop limit structure is, upper
Stopping block, the end after stopping block are set at the close end of the sliding surface of the sliding surface of rotary part and lower rotary part
Positive stop lug boss is constituted, wherein the stopping block on any one rotary part is matched with the positive stop lug boss on another rotary part
It closes, the limit so that two positive stop lug boss contradict each other after through stopping block.
4. liquid drug delivery devices according to claim 1, it is characterised in that: lower casing is arranged on the outer wall of lower case
Body block is correspondingly arranged upper housing block on the inner wall of upper housing, and a part of upper housing is set in lower case, lower case
Block and the cooperation of upper housing block constitute the stop limit structure.
5. liquid drug delivery devices according to claim 1, it is characterised in that: be equipped with and be driven reverse mechanism, in upper rotation
After rotation member and lower rotary part relatively rotate to stop position along first direction, both described reverse drive mechanism drivings are along phase
Opposite direction relatively rotates.
6. liquid drug delivery devices according to claim 5, it is characterised in that: the reverse drive mechanism is wind spring drive
Motivation structure.
7. liquid drug delivery devices according to claim 5, it is characterised in that: the reverse drive mechanism is made by motor
For power mechanism, by gear or screw rod as transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499982.3U CN209378219U (en) | 2018-09-13 | 2018-09-13 | A kind of liquid drug delivery devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499982.3U CN209378219U (en) | 2018-09-13 | 2018-09-13 | A kind of liquid drug delivery devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209378219U true CN209378219U (en) | 2019-09-13 |
Family
ID=67869831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821499982.3U Withdrawn - After Issue CN209378219U (en) | 2018-09-13 | 2018-09-13 | A kind of liquid drug delivery devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209378219U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172960A (en) * | 2018-09-13 | 2019-01-11 | 苏州天健云康信息科技有限公司 | A kind of liquid drug delivery devices and medicament delivery method |
| WO2021233126A1 (en) * | 2020-05-19 | 2021-11-25 | 顾瑜 | Nebulizing device |
-
2018
- 2018-09-13 CN CN201821499982.3U patent/CN209378219U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172960A (en) * | 2018-09-13 | 2019-01-11 | 苏州天健云康信息科技有限公司 | A kind of liquid drug delivery devices and medicament delivery method |
| CN109172960B (en) * | 2018-09-13 | 2024-04-26 | 苏州天健云康信息科技有限公司 | Liquid drug delivery device and drug delivery method |
| WO2021233126A1 (en) * | 2020-05-19 | 2021-11-25 | 顾瑜 | Nebulizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190913 Effective date of abandoning: 20240426 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190913 Effective date of abandoning: 20240426 |