CN108421133A - Drug delivery device and its transmission mechanism - Google Patents
Drug delivery device and its transmission mechanism Download PDFInfo
- Publication number
- CN108421133A CN108421133A CN201810129822.8A CN201810129822A CN108421133A CN 108421133 A CN108421133 A CN 108421133A CN 201810129822 A CN201810129822 A CN 201810129822A CN 108421133 A CN108421133 A CN 108421133A
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- CN
- China
- Prior art keywords
- transmission body
- transmission
- rotation axis
- rotation
- rotated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of drug delivery device and its transmission mechanisms.Wherein, the transmission mechanism includes：Rotation axis, for being rotated under the action of driving force；First transmission body coordinates with the rotation axis and is rotated with the rotation of the rotation axis；Second transmission body coordinates with first transmission body and is rotated with the rotation of the first transmission body；Wherein, first transmission body is configured as with the rotation axis：In the case where not applying the driving force, first transmission body responds the rotation of second transmission body and along the axial movement of the rotation axis.Related embodiment using the present invention is conducive to improve precision in drug administration.
Description
Technical field
The present invention relates to the fluid delivery fields being administered to user, more particularly, be related to a kind of drug delivery device and its
Transmission mechanism.
Background technology
Diabetes are a kind of metabolic diseases characterized by hyperglycemia.Hyperglycemia is typically due to defect of insulin secretion
Or its biological effect is impaired, or both comprehensive function cause.Long-standing hyperglycemia can cause multiple in diabetic's body
The chronic lesion of organ (for example, eye, kidney, heart, blood vessel, nervous system etc.), dysfunction.
Diabetes clinical diagnosis can be divided into type 1 diabetes and diabetes B.Type 1 diabetes, also referred to as insulin-dependent
Diabetes, patient condition typically occur in child or adolescent's period, are a kind of diseases by congenital familial inheritance.1 type glycosuria
Disease belongs to a kind of autoimmune disease, and the immune system of body is made attack to the β cells for producing insulin in vivo, finally led
Cause can not produce insulin in vivo.This kind of patient needs the insulin of injection of exogenous to carry out the blood glucose level in control volume.1 type sugar
Urine patient generally requires 24 hours carrying electronic formula insulin pump in treatment, for example, Medtronic Minimed series insulin pumps.2
Patients with type Ⅰ DM, also referred to as Non-Insulin Dependent Diabetes Mellitus, general patient are adult, especially obese people, and illness can be led
Cause is become thin.The possible cause of disease includes：Insulin resistance prevents body from insulin is efficiently used；The reduction of insulin secretion,
It cannot be satisfied needed for body.The diabetes B patient of early stage can be by the mode of making the life better (for example, healthy diet, appropriate fortune
Dynamic, safe fat-reducing gives up smoking and avoids secondhand smoke etc.) it controls, or even cure diabetes.Most of diabetes B patient Ke Tong
Oral hypoglycemic agents help is crossed to control body blood glucose level or control blood glucose level by interim insulin injection.
Traditional drug delivery device generally comprises reusable part and consumable portion for attaching and pump (patch pump)
(that is, not reusable part).Gear-box in the reusable part via output gear output from driver in future driving force to
Rack transmits, and the rack belongs to the consumable portion.Before assembling the reusable part and consumable portion, Yi Shenghuo
Liquid reservoir in consumable portion is full of liquid by patient, and piston and rack are pushed into setting position.However, the attaching pump is in group
After the completion of dress, output gear and rack are generally difficult to perfect engagement, this results in the incorrect deliveries of liquid even to deliver failure.
Invention content
In order to solve the defect present in existing drug delivery device, a kind of drug delivery device of embodiment of the present invention offer and its biography
Motivation structure is conducive to accurately controlling for administration.
On the one hand, a kind of transmission mechanism of drug delivery device is provided according to an embodiment of the invention, including：
Rotation axis, for being rotated under the action of driving force；
First transmission body coordinates with the rotation axis and is rotated with the rotation of the rotation axis；
Second transmission body coordinates with first transmission body and is rotated with the rotation of the first transmission body；
Wherein, first transmission body is configured as with the rotation axis：In the case where not applying the driving force, institute
It states the first transmission body and responds the rotation of second transmission body and along the axial movement of the rotation axis.
On the other hand, a kind of transmission mechanism of drug delivery device is provided according to an embodiment of the invention, including：
Rotation axis, for being rotated under the action of driving force；
First transmission body coordinates with the rotation axis and is rotated with the rotation of the rotation axis；
It is driven clamp mechanism, is coordinated with first transmission body, and has and is rotated with the rotation of first transmission body
Output gear；
Piston impeller coordinates with the output gear and is moved along its length with the rotation of the output gear
To push piston；
Wherein, first transmission body can respond the output gear and the piston impeller from non-engagement state to
The variation of meshing state and along the axial movement of the rotation axis.
Correspondingly, a kind of drug delivery device is provided according to an embodiment of the invention, including：
Drive system, for providing driving force；
Transmission system, for transmitting the driving force under the driving of the drive system；
Liquid reservoir is used for fluid storage；
Piston is located in the liquid reservoir, is used under the action of the driving force that the transmission system is transmitted, by institute
State the fluid discharge in liquid reservoir；
Wherein, the transmission system includes the transmission mechanism provided such as aforementioned any aspect.
Using various embodiments of the present invention, along described turn by responding the rotation of second transmission body by making the first transmission body
The axial movement of moving axis can be reduced or eliminated gap caused by the incomplete engagement between tooth, be conducive to the accurate of administration
Control.
Description of the drawings
Fig. 1 shows a kind of structural schematic diagram of the transmission mechanism of according to embodiments of the present invention 1 drug delivery device；
Fig. 2 shows a kind of structural schematic diagrams of the transmission mechanism of according to embodiments of the present invention 2 drug delivery device；
Fig. 3 shows a kind of structural schematic diagram of the transmission mechanism of drug delivery device according to inventive embodiments 2；
Fig. 4 shows a kind of structural schematic diagram of according to embodiments of the present invention 3 drug delivery device.
Specific implementation mode
It is described in detail to various aspects of the present invention below in conjunction with the drawings and specific embodiments.Wherein, many institute's weeks
Structure, component and its mutual connection, link or the operation known are not shown or do not elaborate.Also, it is described
Component, structure or function can in any way combine in one or more embodiments.Those skilled in the art answer
Work as understanding, following various embodiments are served only for the protection domain for example, and is not intended to limit the present invention.It can also hold
Readily understood, component, structure, unit or step in each embodiment described herein and shown in the drawings can be matched by various differences
It sets and is combined and designs.It can also be readily appreciated that, although may be only in some embodiments to specific names, term, range
Etc. explaining, but the explanation is equally applicable to other embodiments, unless stated otherwise.
【Embodiment 1】
The present embodiment provides a kind of transmission system of drug delivery device, which for example can be applied to inject to patient
In the attaching pump (patch pump) of liquid.Generally speaking, the transmission system includes rotation axis, the first transmission body and the second biography
Kinetoplast.It is specifically described below.
In the present embodiment, rotation axis under the action of driving force for rotating, and illustratively, the driving force is by motor
It provides.First transmission body coordinates with the rotation axis and is rotated with the rotation of the rotation axis.Second transmission body and first
Transmission body coordinates and is rotated with the rotation of the first transmission body.Wherein, first transmission body is configured with the rotation axis
For：In the case where not applying the driving force, first transmission body responds the rotation of second transmission body and along described
The axial movement of rotation axis.
Fig. 1 shows the structural schematic diagram of according to embodiments of the present invention 1 transmission system.Referring to Fig.1, as of the invention real
A kind of realization method of example 1 is applied, rotation axis 10 rotates under the action of driving force, and the first transmission body 20 has worm screw, and second passes
Kinetoplast 30 then has the worm gear coordinated with the worm screw.
As shown in Figure 1, the first transmission body 20 in the rotation with the rotation axis 10 can rotate while can be along described
The mode of the axial movement of rotation axis is socketed on rotation axis 10.In this way, in response to by 30 lateral first transmission body of the second transmission body
The power that 20 sides apply, the first transmission body 20 can be along the axial movement of rotation axis 10.
In fluid delivery field, existing drug delivery device is susceptible to wheel and rack (for pushing piston) and not exclusively nibbles
The case where conjunction, being administered can cause dosage to control the defects of inaccurate at this time.And the biography for using the embodiment of the present invention 1 to provide
Motivation structure can then eliminate the state that wheel and rack not exclusively engages automatically, to improve the accuracy of administration control.
【Embodiment 2】
Fig. 2 provides the structural schematic diagram of according to embodiments of the present invention 2 transmission mechanism for drug delivery device.With reference to figure
2, the transmission mechanism in addition to including rotation axis 10 as described in example 1 above, the first transmission body 20, the second transmission body 30 it
Outside, further include structure described below.
As depicted in figs. 1 and 2, at least one end setting in first transmission body 20 in itself axial both ends is useful
Restore after the axial movement of the rotation axis 10 to the return unit 40 of setting position in making first transmission body 20.Using this
Design, when the power applied by 30 lateral first transmission body, 20 side of the second transmission body disappears, under the action of return unit 40, first
Transmission body 20 is restored to setting position to facilitate the reuse of the transmission mechanism.
Illustratively, the return unit 40 is elastic component (for example, spring or tension spring).One end position of the elastic component 40
It is fixed, for example, the one end is maintained at the circumference residing for fixed position or fixed position in the axial direction of rotation axis 10；The elastic component
40 other end is then abutted or is connect with the first transmission body 20.
As shown in Figures 2 and 3, the transmission mechanism includes output gear 50 and piston impeller 60 (for example, rack).Its
In, the output gear 50 is rotated with the second transmission body 30 with merging with the rotation of the second transmission body 30；The piston pushes
Part 60 coordinates with the output gear 50 and is moved along its length to push piston with the rotation of the output gear 50
P.Illustratively, the output gear 50 and second transmission body 30 rotate synchronously, the two can be fixedly connected or one at
Type, combination can be as subordinate's transmission mechanism of first transmission body, and is properly termed as transmission clamp mechanism.It is exemplary
Ground, the piston impeller 60 are rack, the transmission for engaging and carrying out power with the output gear 50.
Optionally, in a kind of realization method of the present embodiment 2, first transmission body 20 is axial along rotation axis 10
Displacement distance is slightly larger than the tooth pitch of the piston impeller 60.
Optionally, in a kind of realization method of the present embodiment, as shown in figure 3, in output gear 50 and piston impeller
Being arranged in 60 the two makes the unilateral chamfering A of 50 directional rotating of the output gear when the two not exclusively engages.Based on described defeated
Go out the directional rotating of gear 50, can elastic component 40 only correspondingly be set in one end of the first transmission body 20, and by described the
One transmission body 20 is limited to smaller along the moving range of the rotation axis 10.Using the transmission mechanism of this design, output gear
50 under the action of piston impeller 60 happens is that directional rotating rather than the uncertain rotation in direction, this not only contributes to keep away
Accidentally laxative is to improve the safety of administration for fault-avoidance, in addition, also helping the densification for realizing the transmission mechanism.
The transmission mechanism provided using the present embodiment 2 is not exclusively engaged in piston impeller 60 with 50 the two of output gear
The power applied from the second impeller 30 to the first impeller 20 generated under (there is gap) state, passes through the first impeller 20
It is eliminated along the axial movement of rotation axis 10, to eliminate the gap.In other words, the first transmission body 20 can respond described
Output gear 50 is with the piston impeller 50 from non-engagement state to the variation of meshing state and along the axis of the rotation axis 10
It is advantageously implemented to movement to eliminate existing gap when both piston impeller 60 and output gear 50 not exclusively engage
Dosage accurately controls.
【Embodiment 3】
The embodiment of the present invention also provides a kind of drug delivery device, and with reference to Fig. 4, the drug delivery device includes that drive system (is not schemed
Show), transmission system 410, liquid reservoir 420 and piston.Wherein, the drive system is for providing driving force, for example, the driving
System is motor-driven system.The transmission system 410 then transmits driving force under the driving of the drive system.The reservoir
Device 420 is used for fluid storage.The piston is located in the liquid reservoir 420, described in being transmitted in the transmission system 410
Under the action of driving force, the fluid in the liquid reservoir 420 is discharged.
In the present embodiment, the transmission system 410 includes embodiment described previously or the biography that its realization method is provided
Motivation structure, relevant gear, Zhou Deng mechanisms can be set in gear-box (not shown), and use can also be integrally arranged in drug delivery device
In the shell for protecting and being attached at human body.About the detailed description of the transmission mechanism, please refer to above, it is no longer superfluous herein
It states.And the drug delivery device for using the embodiment of the present invention 3 to provide, the accuracy of administration control can be improved, is also not repeated herein
Explanation.
Multiple embodiments according to the present invention are described in detail above in association with attached drawing.Those skilled in the art should
Understand, component, mechanism in various embodiments etc. may be used reasonable manner and be combined.Certainly, pass through dependency structure
Combination, the drive system and fluid infusion apparatus of other embodiments of the present invention can also have above-mentioned multiple advantages simultaneously.
Those skilled in the art are based on technology provided by the invention and design philosophy, carry out combination, increase and replacement of feature etc.,
This is all belonged to the scope of protection of the present invention.
The term and wording used in description of the invention is just to for example, be not intended to constitute restriction.Ability
Field technique personnel should be appreciated that under the premise of not departing from the basic principle of disclosed embodiment, to the above embodiment
In each details can carry out various change.Therefore, the scope of the present invention is only determined by claim, in the claims, unless
It is otherwise noted, all terms should be understood by the broadest rational meaning.
Claims (10)
1. a kind of transmission mechanism of drug delivery device, which is characterized in that including：
Rotation axis, for being rotated under the action of driving force；
First transmission body coordinates with the rotation axis and is rotated with the rotation of the rotation axis；
Second transmission body coordinates with first transmission body and is rotated with the rotation of the first transmission body；
Wherein, first transmission body is configured as with the rotation axis：In the case where not applying the driving force, described
One transmission body responds the rotation of second transmission body and along the axial movement of the rotation axis.
2. transmission mechanism as described in claim 1, which is characterized in that
First transmission body has worm screw；
Second transmission body has the worm gear for coordinating with the worm screw.
3. transmission mechanism as described in claim 1, which is characterized in that
First transmission body be socketed on the rotation axis enable first transmission body with the rotation of the rotation axis and
Rotate and can be along the axial movement of the rotation axis.
4. transmission mechanism as described in claim 1, which is characterized in that
It is provided in at least one end of first transmission body in itself axial both ends for making first transmission body edge
Restore after the axial movement of the rotation axis to the return unit of setting position.
5. transmission mechanism as claimed in claim 4, which is characterized in that
The return unit is elastic component.
6. transmission mechanism as claimed in claim 5, which is characterized in that
One end position of the elastic component is fixed, and the other end is abutted or connect with first transmission body.
7. the transmission mechanism as described in any one of claim 1-6, which is characterized in that further include：
Output gear coordinates with second transmission body and is rotated with the rotation of the second transmission body；
Piston impeller coordinates with the output gear and is moved along its length to push away with the rotation of the output gear
Piston.
8. a kind of transmission mechanism of drug delivery device, including：
Rotation axis, for being rotated under the action of driving force；
First transmission body coordinates with the rotation axis and is rotated with the rotation of the rotation axis；
It is driven clamp mechanism, is coordinated with first transmission body, and with the output rotated with the rotation of first transmission body
Gear；
Piston impeller coordinates with the output gear and is moved along its length to push away with the rotation of the output gear
Piston；
Wherein, first transmission body can respond the output gear and the piston impeller from non-engagement state to engaging
The variation of state and along the axial movement of the rotation axis.
9. transmission mechanism as claimed in claim 8, which is characterized in that
First transmission body has worm screw；
The transmission clamp mechanism has the worm gear coordinated with the worm screw.
10. a kind of drug delivery device, which is characterized in that including：
Drive system, for providing driving force；
Transmission system, for transmitting the driving force under the driving of the drive system；
Liquid reservoir is used for fluid storage；
Piston is located in the liquid reservoir, is used under the action of the driving force that the transmission system is transmitted, by the storage
Fluid discharge in liquid device；
Wherein, the transmission system includes transmission mechanism as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129822.8A CN108421133A (en) | 2018-02-08 | 2018-02-08 | Drug delivery device and its transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129822.8A CN108421133A (en) | 2018-02-08 | 2018-02-08 | Drug delivery device and its transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108421133A true CN108421133A (en) | 2018-08-21 |
Family
ID=63156608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810129822.8A Pending CN108421133A (en) | 2018-02-08 | 2018-02-08 | Drug delivery device and its transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108421133A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939203A (en) * | 2018-08-23 | 2018-12-07 | 苏州新生命医疗科技有限公司 | A kind of driving structure and high-precision drug infusion system of drug infusion system |
| CN109172934A (en) * | 2018-08-23 | 2019-01-11 | 苏州新生命医疗科技有限公司 | A kind of driving structure and drug infusion system of compact drug infusion system |
| CN110694146A (en) * | 2019-10-25 | 2020-01-17 | 刘苏衡 | Needleless injector |
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|---|---|---|---|---|
| WO2006121921A2 (en) * | 2005-05-06 | 2006-11-16 | Medtronic Minimed, Inc. | Infusion device and method with disposable portion |
| US20080097328A1 (en) * | 2006-08-23 | 2008-04-24 | Medtronic Minimed, Inc. | Systems and methods allowing for reservoir filling and infusion medium delivery |
| US20080319394A1 (en) * | 2007-06-11 | 2008-12-25 | Medingo, Ltd. | Portable infusion device with reduced level of operational noise |
| US20120172804A1 (en) * | 2009-03-31 | 2012-07-05 | Sanofi-Aventis Deutschland Gmbh | Medicament delivery devices |
| CN102762241B (en) * | 2009-12-30 | 2014-04-02 | 美敦力迷你迈德公司 | Engagement and sensing systems and methods |
| CN209075720U (en) * | 2018-02-08 | 2019-07-09 | 美敦力公司 | Drug delivery device and its transmission mechanism |
-
2018
- 2018-02-08 CN CN201810129822.8A patent/CN108421133A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006121921A2 (en) * | 2005-05-06 | 2006-11-16 | Medtronic Minimed, Inc. | Infusion device and method with disposable portion |
| US20080097328A1 (en) * | 2006-08-23 | 2008-04-24 | Medtronic Minimed, Inc. | Systems and methods allowing for reservoir filling and infusion medium delivery |
| US20080319394A1 (en) * | 2007-06-11 | 2008-12-25 | Medingo, Ltd. | Portable infusion device with reduced level of operational noise |
| US20120172804A1 (en) * | 2009-03-31 | 2012-07-05 | Sanofi-Aventis Deutschland Gmbh | Medicament delivery devices |
| CN102762241B (en) * | 2009-12-30 | 2014-04-02 | 美敦力迷你迈德公司 | Engagement and sensing systems and methods |
| CN209075720U (en) * | 2018-02-08 | 2019-07-09 | 美敦力公司 | Drug delivery device and its transmission mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939203A (en) * | 2018-08-23 | 2018-12-07 | 苏州新生命医疗科技有限公司 | A kind of driving structure and high-precision drug infusion system of drug infusion system |
| CN109172934A (en) * | 2018-08-23 | 2019-01-11 | 苏州新生命医疗科技有限公司 | A kind of driving structure and drug infusion system of compact drug infusion system |
| CN110694146A (en) * | 2019-10-25 | 2020-01-17 | 刘苏衡 | Needleless injector |
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Application publication date: 20180821 |