CN110141728A - Convenient for the injection pen cap of injection - Google Patents
Convenient for the injection pen cap of injection Download PDFInfo
- Publication number
- CN110141728A CN110141728A CN201910387002.3A CN201910387002A CN110141728A CN 110141728 A CN110141728 A CN 110141728A CN 201910387002 A CN201910387002 A CN 201910387002A CN 110141728 A CN110141728 A CN 110141728A
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- China
- Prior art keywords
- shell
- syringe
- injection
- push rod
- bracket
- Prior art date
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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
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
-
- 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
- A61M5/46—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 having means for controlling depth of insertion
-
- 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
- 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
- A61M2005/2026—Semi-automatic, e.g. user activated piston is assisted by additional source of energy
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 present invention provides a kind of injection pen cap convenient for injection, comprising: first shell；Second shell, syringe is movably located in first chamber and second chamber between stationary state and use state, and when syringe is located at stationary state, syringe is located in first chamber and second chamber, when syringe is located at use state, the syringe needle of syringe stretches out second chamber；Push rod, push rod is movably located in first shell between locking position and open position, active force do not applied to syringe when push rod is located at locking position, syringe is located at stationary state, and push rod is from locking position to promotion syringe when the activity of open position from stationary state to use state activity；Movable component, movable component and push rod cooperate to adjust the configuration of push rod；Hidden needle sleeve.Injection pen nested structure according to an embodiment of the present invention convenient for injection is simple, easy to use, can adjust injection depth.
Description
Technical field
The present invention relates to injector technology field more particularly to a kind of injection pens cap convenient for injection.
Background technique
When treating certain disease, need to inject drug to patient on time.If patient does not stay in hospital or does not have at one's side
There is medical staff, then wants certain positions of oneself operating syringe injection body, and existing syringe needs to hold in injection
Continuous to apply active force, promotion syringe is complete until drug injection, is not easy to patient's handled by itself.In addition, certain positions are to injection
Depth also requires.
Summary of the invention
In view of this, the present invention provides a kind of injection pen cap convenient for injection, it should be convenient for the injection pen nested structure letter of injection
It is single, it is easy to use.
The injection pen cap according to an embodiment of the present invention convenient for injection includes: first shell, is limited in the first shell
There is axially extending and open at one end first chamber along its, the outside wall surface of the first shell is equipped with adjustment hole；Second shell,
Defined in the second shell along its axially through second chamber, one end of the second shell and the first shell
Open end is detachably connected, and the syringe is movably located at the first chamber between stationary state and use state
In the second chamber, when the syringe is located at the stationary state, the syringe is located at the first chamber and institute
It states in second chamber, when the syringe is located at the use state, the syringe needle of the syringe stretches out the second chamber；It pushes away
Bar, the push rod are movably located in the first shell between locking position and open position, and the push rod is located at institute
Active force do not applied to the syringe when stating locking position, the syringe is located at the stationary state, and the push rod is from institute
State locking position to pushed when the open position activity syringe from the stationary state to the use state activity；
Movable component, at least part of the movable component are movably located in the first shell, the movable component and institute
Push rod cooperation is stated to adjust the configuration of the push rod；Hidden needle sleeve, the hidden needle sleeve are located at the other end of the second shell,
The third chamber with second chamber perforation is defined in the hidden needle sleeve, the hidden needle sleeve is along the second shell
It is axial movable to adjust the length that the syringe needle stretches out the third chamber.
The injection pen cap according to an embodiment of the present invention convenient for injection, by placing a syringe in the first cavity and second
In cavity, and syringe injection is controlled by push rod and movable part, should be simple convenient for the injection pen nested structure of injection, using just
Victory can adjust injection depth.
The injection pen cap according to an embodiment of the present invention convenient for injection can also have following additional technical feature:
One embodiment according to an embodiment of the present invention, convenient for the injection pen cap of injection, the movable component includes: branch
Frame, the branch are erected in the first shell, the branch be provided with along its axially through channel, the push rod is along described logical
The axial direction in road is movably located in the channel；Elastic parts, the elastic parts be located at the bracket and the push rod it
Between, at least part of the elastic parts only supports the bracket and at least another part only supports the push rod；Switch, it is described to open
Pass is movably set on the bracket and at least part of the switch is stretched out from the adjustment hole, and the push rod is located at institute
The elastic parts is compressed when stating locking position, and the switch locks the push rod, when the switch is opened, the elasticity group
The push rod is pushed to the open position by part stretching, extension.
According to one embodiment of present invention, the elastic parts includes: resilient sleeve, and the resilient sleeve is formed as column
Shape and being located in the channel is connected with the bracket；First elastic component, first elastic component are set in the resilient sleeve
On, the resilient sleeve is only supported in one end of first elastic component and the other end only supports the push rod, and the push rod is located at described
First elastic component is compressed when locking position.
According to one embodiment of present invention, the elastic parts further include: spring support, the spring support are formed as column
Shape, the spring support is located in the channel and one end of the spring support and the one end of the bracket far from the second shell
It is connected；One end of second elastic component, second elastic component is set on the spring support, the other end of second elastic component
Only support the resilient sleeve.
According to one embodiment of present invention, the bracket is along the axial in first position and second of the first shell
Movable between setting, when the bracket is located at the first position, the switch is locked, and the bracket is located at the second
When setting, the switch is unlocked, and the switch is movable to unlock the push rod.
According to one embodiment of present invention, the elastic parts further include: third elastic component, the third elastic component are set
Between one end of the bracket and one end of the first shell, the both ends of the third elastic component only support described first respectively
Shell and the bracket, when the bracket is located at the first position, the third elastic component unclamps, and the bracket is located at described
When the second position, the third elastic component is compacted.
According to one embodiment of present invention, the bracket includes: rack body, the rack body be formed as column and
Opposite sides is opened wide, and the channel is axially extending along the rack body；Upper cover, it is spacious that the upper cover is located at the rack body
Between the inner wall of the side and the first shell opened；Lower cover, the lower cover are located at the open other side of the rack body
Between the inner wall of the first shell, the upper cover and the lower cover are detachably connected with the rack body respectively.
According to one embodiment of present invention, the switch is formed as elastic slice, one end of the switch and the bracket master
Body is connected, and the other end of the switch exposes the adjustment hole.
According to one embodiment of present invention, the injection pen cap convenient for injection further include: Buffer Unit, it is described slow
It rushes component to be located in the second shell, at least part of the Buffer Unit is transported in the syringe from the stationary state
The syringe only is supported to buffer to it when moving to the use state.
According to one embodiment of present invention, the Buffer Unit includes: buffer fixed base, and the buffer fixed base is located at
In the second shell and at least part is only to the inner wall of the second shell；Sleeve is buffered, the buffering sleeve is along institute
The axial direction for stating second shell is movably located on the buffer fixed base, and the buffering sleeve is in the syringe from described quiet
The syringe is only only supported when state motion to the use state；Snubber elastomeric part, the snubber elastomeric part are located at described slow
It rushes between sleeve and the buffer fixed base and the buffer fixed base, the buffering elastic is only supported in one end of the snubber elastomeric part
Property part the other end only support the buffering sleeve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the injection pen cap convenient for injection of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram according to the first shell of the injection pen cap convenient for injection of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram according to the second shell of the injection pen cap convenient for injection of the embodiment of the present invention；
Fig. 4 is the axial section of Fig. 1；
Fig. 5 is the explosive view of Fig. 1.
Appended drawing reference:
Convenient for the injection pen cap 100 of injection；
First shell 10；
Second shell 20；First section 21；Second section 22；Third cylinder section 23；
Push rod 30；
Movable component 40；Rack body 411；Upper cover 412；Lower cover 413；Resilient sleeve 421；First elastic component 422；Elasticity
Seat 423；Second elastic component 424；Third elastic component 425；Switch 43；
Syringe 50；
Buffer Unit 60；Buffer fixed base 61；Buffer sleeve 62；Snubber elastomeric part 63；Hidden needle sleeve 64；4th section
641；5th section 642.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The injection pen cap 100 according to an embodiment of the present invention convenient for injection is specifically described in conjunction with attached drawing first below.
As shown in Figures 1 to 5, it is according to an embodiment of the present invention convenient for injection the injection pen cap 100 include first shell 10,
Second shell 20, push rod 30, movable component 40 and hidden needle sleeve 64.
Specifically, defining axially extending and open at one end first chamber, first shell along its in first shell 10
10 outside wall surface is equipped with adjustment hole, define in second shell 20 along its axially through second chamber, second shell 20
One end and the open end of first shell 10 are detachably connected, syringe 50 between stationary state and use state movably
It is located in first chamber and second chamber, when syringe 50 is located at stationary state, syringe 50 is located at first chamber and the second chamber
Interior, when syringe 50 is located at use state, the syringe needle of syringe 50 stretches out second chamber, and push rod 30 is in locking position and opening
It being movably located in first shell 10 between position, push rod 30 does not apply active force to syringe 50 when being located at locking position,
Syringe 50 is located at stationary state, push rod 30 from locking position to pushed when the activity of open position syringe 50 from stationary state to
Use state activity, at least part of movable component 40 are movably located in first shell 10, movable component 40 and push rod
30 cooperate to adjust the configuration of push rod 30, and hidden needle sleeve 64 is located at the other end of second shell 20, defines in hidden needle sleeve 64
The third chamber penetrated through with second chamber, hidden needle sleeve 64 are movable to adjust syringe needle stretching third along the axial direction of second shell 20
The length of chamber.
In other words, convenient for the injection pen cap 100 of injection mainly by first shell 10, second shell 20, push rod 30 and activity
Component 40 forms.Wherein, first shell 10 and second shell 20 are detachably connected, and are divided in first shell 10 and second shell 20
First chamber and second chamber are not defined, and push rod 30 and movable part are respectively provided in first shell 10 and cooperate, push rod
30 can be movable between locking position and open position, before use, syringe 50 is placed on first chamber and second chamber
Interior, push rod 30 is located at locking position not to 50 applied force of syringe, in use, push rod 30 is living from locking position to open position
It moves and the syringe needle of syringe 50 is pushed to stretch out hidden needle sleeve 64, and 50 syringe needle of adjustable syringe stretches out the length of hidden needle sleeve 64
It is easy to use convenient for the injection pen cap 100 injected to spend this, patient only needs once-through operation that push rod 30 is allowed to leave locking position, push rod 30
Syringe 50 can be pushed to inject during the motion, patient is additional without being continuously applied in injection process to syringe 50
Power, in the case where not needing others' help, injection process is can be completed in patient, convenient for operating and adjusting the injection depth of syringe needle
Degree.
The injection pen cap 100 according to an embodiment of the present invention convenient for injection as a result, by the way that syringe 50 is placed on first
In cavity and the second cavity, and syringe 50 is controlled by push rod 30 and movable part and is injected, it should be convenient for the injection pen cap 100 of injection
Structure is simple, easy to use, can adjust injection depth.
Specifically embodiment more according to the present invention, movable component 40 include bracket, elastic parts and switch 43.
Specifically, branch be erected in first shell 10, branch be provided with along its axially through channel, push rod 30 is along channel
Axial to be movably located in channel, elastic parts is located between bracket and push rod 30, and at least part of elastic parts is only supported
Bracket and at least another part only push bar 30, and switch 43 is movably located on bracket and at least part of switch 43 is from tune
Knothole stretches out, and elastic parts is compressed when push rod 30 is located at locking position, the locked push rod 30 of switch 43, when switch 43 is opened, bullet
Property component stretching, extension push rod 30 is pushed to open position.
That is, movable component 40 is mainly made of bracket, elastic parts and switch 43, it is equipped in bracket along its axial direction
The channel of extension, movably in channel, elastic parts is matched with bracket to switch for pushing push rod 30 to move push rod 30
43 push push rod 30 for cooperating with the adjustment hole on bracket to control elastic parts, easy to use.
Preferably, elastic parts includes resilient sleeve 421 and the first elastic component 422.
Specifically, resilient sleeve 421 is formed as column and is located in channel to be connected with bracket, the first 422 sets of elastic component
It is located on resilient sleeve 421, resilient sleeve 421 is only supported in one end of the first elastic component 422 and the other end only pushes bar 30, push rod 30
The first elastic component 422 is compressed when positioned at locking position, in use state, the first elastic component 422, which can apply thrust, to be pushed away
Bar 30.
Further, elastic parts further includes spring support 423 and the second elastic component 424.
Specifically, spring support 423 is formed as column, and spring support 423 is located in channel and one end of spring support 423 and bracket
One end far from second shell 20 is connected, and one end of the second elastic component 424 is set on spring support 423, the second elastic component 424
The other end only supports resilient sleeve 421.
That is, elastic parts can further include spring support 423 and the second elastic component 424, one end of the first elastic component 422
Resilient sleeve 421 is only supported, the other end only pushes bar 30, and 424 one end of the second elastic component is set on spring support 423, and the other end stops
To resilient sleeve 421, elasticity is good for the elastic parts, convenient for control.
According to still another embodiment of the invention, bracket along first shell 10 it is axial first position and the second position it
Between it is movable, when bracket is located at first position, switch 43 is locked, and when bracket is located at the second position, switch 43 is unlocked, switch
43 is movable to unlock push rod 30.
Optionally, elastic parts further includes third elastic component 425, and third elastic component 425 is located at one end and first of bracket
Between one end of shell 10, first shell 10 and bracket are only supported in the both ends of third elastic component 425 respectively, and bracket is located at first position
When, third elastic component 425 unclamps, and when bracket is located at the second position, third elastic component 425 is compacted.
In yet another embodiment of the present invention, bracket includes rack body 411, upper cover 412 and lower cover 413.
Specifically, rack body 411 is formed as column and opposite sides is opened wide, axial direction of the channel along rack body 411
Extend, upper cover 412 is located between the open side of rack body 411 and the inner wall of first shell 10, and lower cover 413 is located at bracket
Between the open other side of main body 411 and the inner wall of first shell 10, upper cover 412 and lower cover 413 respectively with rack body 411
It is detachably connected.Bracket is composed of rack body 411, upper cover 412 and lower cover 413, easy for removal and installation.
Preferably, switch 43 is formed as elastic slice, and one end of switch 43 is connected with rack body 411, the other end of switch 43
Expose adjustment hole, it is easy to use.
According to one embodiment of present invention, adjustment hole is formed as the axially extending elongated hole along first shell 10, opens
The other end for closing 43 is equipped with the protruding portion for protruding adjustment hole, and protruding portion only supports 10 quilt of first shell when bracket is located at first position
First shell 10 is locked, and protruding portion is movable to unlock push rod 30, one lower switch of Manual press when bracket is located at the second position
43 complete injection process, easy to use.
Specifically, third elastic component 425 is fixed between first shell 10 and rack body 411, when free state, bracket
Switch 43 in main body 411 is limited and cannot pull；Before use, push rod 30 is pushed away towards one end applied force where first shell 10
Into in push-in rack body 411, compress the first elastic component 422 and the second elastic component 424, until push rod 30 is by rack body
Switch 43 on 411 is fixed；In use, pressing switch 43, push rod 30 pushes syringe 50 to complete injection.
Preferably, bracket is threadedly coupled with second shell 20, is threadedly coupled easy for removal and installation.
Specifically embodiment more according to the present invention, hidden needle sleeve 64 are threadedly coupled with second shell 20, are threadedly coupled
Easy to disassemble and adjusting, hidden needle sleeve 64 can be threadedly secured in second shell 20, can also be in second shell 20
It is rotated upwardly and downwardly within the scope of screw thread.
Preferably, second shell 20 includes first section 21 and second section 22.
Specifically, first section 21 is formed as column, and one end and the first shell 10 of first section 21 are detachably connected,
Second section 22 is formed as column, radial dimension of the radial dimension less than first section 21 of second section 22, second section 22
One end be connected with first section 21, the other end of second section 22 is connected with hidden needle sleeve 64.
In one embodiment of the invention, second shell 20 further includes third cylinder section 23, and third cylinder section 23 is formed as round
Platform shape, one end of third cylinder section 23 are connected with first section 21, and the other end of third cylinder section 23 is connected with second section 22.
That is, second shell 20 is by first section 21, third cylinder section 23 and second 22 3 Duan Zucheng of section, not only just
In processing, and convenient for matching installation with other components.
Preferably, first section, 21, second sections 22 and third cylinder section 23 are integrally formed part, are integrally formed part and not only tie
Structure is simple, and easy to process.
In one embodiment of the invention, second section 22 is equipped with antifriction line.
Optionally, hidden needle sleeve 64 includes the 4th section 641 and the 5th section 642.
Specifically, the 4th section 641 is formed as column, one end of the 4th section 641 is threadedly coupled with second section 22,
The outside wall surface of 4th section 641 is equipped with along its axially extending graduated scale, convenient for patient in use, the specific depth of control injection
Degree, the 5th section 642 are formed as column, and one end of the 5th section 642 is connected with the 4th section 641, hidden 64 structure of needle sleeve
Simply, easy to process.
According to one embodiment of present invention, the outside wall surface of the 5th section 642 is equipped with anti-skid chequer, and anti-skid chequer is convenient for turning
Hidden needle sleeve 64 adjusts the length of hidden needle sleeve 64.
According to still another embodiment of the invention, the injection pen cap 100 for being adjustable syringe injection depth further includes buffering
Component 60, Buffer Unit 60 are located in second shell 20, and at least part of Buffer Unit 60 is in syringe 50 from stationary state
Syringe 50 only is supported to buffer to it when moving to use state.
Preferably, Buffer Unit 60 includes buffer fixed base 61, buffering sleeve 62 and buffering elastic component 63.
Specifically, buffer fixed base 61 is located in second shell 20 and at least part is only to the inner wall of second shell 20
Face, buffering sleeve 62 are movably located on buffer fixed base 61 along the axial direction of second shell 20, buffer sleeve 62 in syringe
50 only support syringe 50 when moving to use state from stationary state, snubber elastomeric part 63 is located at buffering sleeve 62 and buffering is fixed
Buffer fixed base 61 is only supported between seat 61 and one end of snubber elastomeric part 63, and the other end of snubber elastomeric part 63 only supports buffering sleeve
62.That is, buffering sleeve 62 is fixed on buffing pad, there can be the cunning of certain amplitude under the action of snubber elastomeric part 63
It moves, buffer fixed base 61, buffering sleeve 62 and buffering elastic component 63 cooperate, and certain delay is played when syringe 50 is injected
Punching effect, avoids that patient is made to be made into discomfort.
It should be noted that third elastic component 425 is fixed between first shell 10 and rack body 411, free state
When, the switch 43 on rack body 411 is limited and cannot pull；Before use, will towards one end applied force where first shell 10
Push rod 30 promotes in push-in rack body 411, compresses the first elastic component 422 and the second elastic component 424, until 30 quilt of push rod
Switch 43 on rack body 411 is fixed；In use, pressing switch 43, push rod 30 pushes syringe 50 to complete injection.
When injection, hidden needle sleeve 64 only supports skin, holds first shell 10 and moves downward and is allowed to come to together with bracket, and
The switch on rack body is pressed, syringe 50 is pushed, realizes injection.
To sum up, the injection pen cap 100 according to an embodiment of the present invention convenient for injection, by the way that syringe 50 is placed on
In first cavity and the second cavity, and syringe 50 is controlled by push rod 30 and movable part and is injected, it should be convenient for the injection pen of injection
It is simple to cover 100 structures, it is easy to use, injection depth can be adjusted.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of injection pen cap convenient for injection characterized by comprising
First shell defines axially extending and open at one end first chamber, the first shell along its in the first shell
The outside wall surface of body is equipped with adjustment hole；
Second shell, define in the second shell along its axially through second chamber, one end of the second shell with
The open end of the first shell is detachably connected, and the syringe is movably set between stationary state and use state
In the first chamber and the second chamber, when the syringe is located at the stationary state, the syringe is located at institute
It states in first chamber and the second chamber, when the syringe is located at the use state, the syringe needle of the syringe stretches out
The second chamber；
Push rod, the push rod are movably located in the first shell between locking position and open position, the push rod
Active force is not applied to the syringe when positioned at the locking position, the syringe is located at the stationary state, described to push away
Bar is from the locking position to pushing the syringe from the stationary state to described using shape when the open position activity
State activity；
Movable component, at least part of the movable component are movably located in the first shell, the movable component
Cooperate with the push rod to adjust the configuration of the push rod；
Hidden needle sleeve, the hidden needle sleeve are located at the other end of the second shell, defined in the hidden needle sleeve with it is described
The third chamber of second chamber perforation, the hidden needle sleeve movable are stretched along the axial direction of the second shell with adjusting the syringe needle
The length of the third chamber out.
2. the injection pen cap according to claim 1 convenient for injection, which is characterized in that the movable component includes:
Bracket, the branch are erected in the first shell, the branch be provided with along its axially through channel, the push rod edge
The axial direction in the channel is movably located in the channel；
Elastic parts, the elastic parts are located between the bracket and the push rod, at least part of the elastic parts
It only supports the bracket and at least another part only supports the push rod；
Switch, the switch is movably set on the bracket and at least part of the switch is stretched from the adjustment hole
Out, the elastic parts is compressed when the push rod is located at the locking position, and the switch locks the push rod, the switch
When opening, the push rod is pushed to the open position by the elastic parts stretching, extension.
3. the injection pen cap according to claim 2 convenient for injection, which is characterized in that the elastic parts includes:
Resilient sleeve, the resilient sleeve are formed as column and are located in the channel to be connected with the bracket；
First elastic component, first elastic component are set on the resilient sleeve, and institute is only supported in one end of first elastic component
It states resilient sleeve and the other end only supports the push rod, the push rod compresses first elastic component when being located at the locking position.
4. the injection pen cap according to claim 3 convenient for injection, which is characterized in that the elastic parts further include:
Spring support, the spring support are formed as column, the spring support be located in the channel and one end of the spring support with
The bracket is connected far from one end of the second shell；
One end of second elastic component, second elastic component is set on the spring support, the other end of second elastic component
Only support the resilient sleeve.
5. the injection pen cap according to claim 4 convenient for injection, which is characterized in that the bracket is along the first shell
Axial direction it is movable between the first position and the second position, when the bracket is located at the first position, the switch is locked
Extremely, when the bracket is located at the second position, the switch is unlocked, and the switch is movable to unlock the push rod.
6. the injection pen cap according to claim 5 convenient for injection, which is characterized in that the elastic parts further include:
Third elastic component, the third elastic component is located between one end of the bracket and one end of the first shell, described
The first shell and the bracket, when the bracket is located at the first position, institute are only supported in the both ends of third elastic component respectively
The release of third elastic component is stated, when the bracket is located at the second position, the third elastic component is compacted.
7. the injection pen cap according to claim 5 convenient for injection, which is characterized in that the bracket includes:
Rack body, the rack body is formed as column and opposite sides is opened wide, axis of the channel along the rack body
To extension；
Upper cover, the upper cover are located between the open side of the rack body and the inner wall of the first shell；
Lower cover, the lower cover is located between the open other side of the rack body and the inner wall of the first shell, described
Upper cover and the lower cover are detachably connected with the rack body respectively.
8. the injection pen cap according to claim 7 convenient for injection, which is characterized in that the switch is formed as elastic slice, institute
The one end for stating switch is connected with the rack body, and the other end of the switch exposes the adjustment hole.
9. the injection pen cap according to claim 1 convenient for injection, which is characterized in that further include:
Buffer Unit, the Buffer Unit are located in the second shell, and at least part of the Buffer Unit is in the note
The syringe only is supported to buffer to it when emitter moves to the use state from the stationary state.
10. the injection pen cap according to claim 9 convenient for injection, which is characterized in that the Buffer Unit includes:
Buffer fixed base, the buffer fixed base is located in the second shell and at least part only supports the second shell
Inner wall；
Sleeve is buffered, the buffering sleeve is movably located on the buffer fixed base along the axial direction of the second shell, institute
It states buffering sleeve and only supports the syringe when the syringe moves to the use state from the stationary state；
Snubber elastomeric part, the snubber elastomeric part is located between the buffering sleeve and the buffer fixed base and the buffering elastic
Property part one end only support the buffer fixed base, the other end of the snubber elastomeric part only supports the buffering sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387002.3A CN110141728B (en) | 2019-05-10 | 2019-05-10 | Injection pen cap convenient for injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387002.3A CN110141728B (en) | 2019-05-10 | 2019-05-10 | Injection pen cap convenient for injection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110141728A true CN110141728A (en) | 2019-08-20 |
| CN110141728B CN110141728B (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910387002.3A Active CN110141728B (en) | 2019-05-10 | 2019-05-10 | Injection pen cap convenient for injection |
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| Country | Link |
|---|---|
| CN (1) | CN110141728B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464524A (en) * | 2021-07-05 | 2021-10-01 | 北京汽车集团越野车有限公司 | Clamping structure and vehicle with same |
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| CN109078240A (en) * | 2018-09-30 | 2018-12-25 | 江苏德尔福医疗器械有限公司 | Disposable injection pen with dosage feedback device |
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| CN101068586A (en) * | 2004-12-01 | 2007-11-07 | 诺和诺德公司 | Injection device |
| CN107073199A (en) * | 2014-09-05 | 2017-08-18 | 魏民 | Automatic injection device for variable dose of medication |
| WO2016038445A1 (en) * | 2014-09-12 | 2016-03-17 | Shaily Medical Plastics Private Limited | Injector pens |
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| CN113464524A (en) * | 2021-07-05 | 2021-10-01 | 北京汽车集团越野车有限公司 | Clamping structure and vehicle with same |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110141728B (en) | 2020-12-22 |
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