CN108837241A - A kind of dedicated needleless injector of beautifying medical - Google Patents
A kind of dedicated needleless injector of beautifying medical Download PDFInfo
- Publication number
- CN108837241A CN108837241A CN201810668365.XA CN201810668365A CN108837241A CN 108837241 A CN108837241 A CN 108837241A CN 201810668365 A CN201810668365 A CN 201810668365A CN 108837241 A CN108837241 A CN 108837241A
- Authority
- CN
- China
- Prior art keywords
- shell
- firing pin
- loading
- hook
- dedicated
- 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.)
- Pending
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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
- A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/19—Constructional features of carpules, syringes or blisters
Abstract
The present invention relates to a kind of dedicated needleless injectors of beautifying medical, including shell, firing pin, stored energy mechanism, hook pawl, impact chamber, housing forward end is equipped with bindiny mechanism, housing forward end is cased with loading set, it loads and is equipped with limit sleeve inside set tail end, limit hole is equipped in limit sleeve, limit hole side is equipped with limiting slot, loading needle is inserted in limit hole, it loads needle and is equipped with sliding pin, load needle front end and be equipped with feeding screw thread, be equipped with feed nut in the loading set of limit sleeve front end, limit sleeve tail end is equipped with claw, and housing forward end is equipped with card slot.The present invention realizes the feeding for loading needle using the relative rotation of guide sleeve and feed nut, loads needle and pushes firing pin, stored energy mechanism energy storage backward, after firing pin is pulled to shell tail portion, hooks claw hook and live firing pin, firing pin is by accumulation of energy, it is extracted when use and loads set, Needleless injection head is connected to housing head, by lower button, it hooks pawl and discharges firing pin, firing pin impacts the piston of Needleless injection head, medical fluid high speed is projected, structure is simple, it is convenient to load, easily contained.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of dedicated needleless injector of beautifying medical.
Background technique
Needleless injector is exactly to form medical fluid using high-pressure jet principle by syringe needle when carrying out drug injection
Thinner liquid flow, moment penetrate skin and reach subcutaneously.Because injecting the change of principle, medical fluid works in subcutaneous Dispersed precipitate
Time, faster drug absorption rate was higher.Existing needleless injector loading is relatively elaborate, and loading tool and needleless injector are difficult to
It is carried along.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of dedicated needleless injectors of beautifying medical.
The technical solution adopted by the present invention to solve the technical problems is：A kind of dedicated needleless injector of beautifying medical, packet
It includes shell, the energy storage that the intracorporal firing pin of the shell, setting apply forward thrust on the housing and to the firing pin is set
Mechanism, setting are on the housing and the hook pawl for discharging firing pin, interior be equipped with of the shell are prolonged along the shell axis direction
The impact chamber stretched, the firing pin setting is intracavitary in the impact, and the firing pin axis is parallel with the impact cavity axis, the shell
Body front end is equipped with the bindiny mechanism being detachably connected convenient for Needleless injection head, and the housing forward end is cased with loading set, the loading
It is equipped with to be equipped in the limit sleeve for loading set and axially rotating, the limit sleeve inside set tail end and prolong along the limit sleeve axis
The limit hole stretched, the limit hole side are equipped with the limiting slot extended along the limit hole generatrix direction, the limit hole interpolation
There is loading needle, the needle that loads is equipped with the sliding pin for protruding into the limiting slot, and the loading needle front end is equipped with feeding screw thread, the dress
Carry backshank end and stretch out the limit sleeve tail end, be equipped in the loading set of the limit sleeve front end with it is described feed be threadedly engaged into
To nut, the loading set circumferentially limits the feed nut, and the limit sleeve tail end is equipped with the claw to extend back, described
Housing forward end is equipped with the card slot cooperated with the claw, i.e., the described claw and the card slot are in mated condition, the limit sleeve
With the shell without relative rotation.
Set is loaded by being cased on shell in above-mentioned design, realizes dress using the relative rotation of guide sleeve and feed nut
The feeding of needle is carried, needle is loaded and pushes firing pin backward, stored energy mechanism energy storage after firing pin is pulled to shell tail portion, hooks claw hook and lives firing pin,
For firing pin by accumulation of energy, when use, which extracts, loads set, Needleless injection head is connected to housing head, the piston rod of Needleless injection head supports only
The firing pin head is hooked pawl and is discharged firing pin by lower button, and firing pin impacts the piston of Needleless injection head, and medical fluid high speed is projected,
Structure is simple, and it is convenient to load, and convenient for storage, whole device is small in size.
As the further improvement of the design, the limit sleeve tail end is equipped with guiding taper hole, guiding taper hole tail end hole
Diameter is greater than guiding taper hole head aperture, the guiding taper hole axis and the limit hole axis collinear, the housing forward end
Equipped with the tapered surface cooperated with the guiding taper hole.Guiding taper hole is docked convenient for shell with what loading covered, easy to assembly.
As the further improvement of the design, be equipped with snap ring in loading set, the guide sleeve periphery be equipped with it is described
The limited ring groove of snap ring cooperation.The snap ring is convenient for the installation of limit sleeve, front and back play after preventing limit sleeve from installing.
As the further improvement of the design, the set tail end that loads is equipped with the rotation being bonded with the housing forward end outer wall
Set loads the stability that set and shell relatively rotate convenient for being promoted.
As the further improvement of the design, the stored energy mechanism is the energy-stored spring covered on the firing pin, the storage
Energy spring one end supports the only shell tail end, and the energy-stored spring other end supports the only firing pin, i.e., the described energy-stored spring is to institute
It states firing pin and is applied with forward elastic force, using spring energy-storage, structure is simple, at low cost.
As the further improvement of the design, the hook pawl is connect with the housing into rotation, the hook pawl and the shell
The axis of rotation connection is vertical with the shell axis, and the firing pin tail end is equipped with annular hook groove, described hooks pawl one end equipped with
The positive stop hook of the annular hook groove cooperation, the hook pawl are L shape, and the shell tail end is equipped with release button, the release button
Only described not set loop-hook one end of hook pawl is supported in front end, and the shell on front side of the release button is equipped with reset spring, described multiple
Position spring one end is equipped with return pin, and the return pin tail end supports only not set loop-hook one end of the hook pawl and pushes the hook pawl
Not set loop-hook one end is swung backward.Hook pawl using L shape and by release button operate, it is easy to operate, reset spring and again
Position pin hooks pawl stability convenient for improving, and prevents firing pin false triggering.
As the further improvement of the design, the bindiny mechanism is connection screw thread, easy to connect, high reliablity.
As the further improvement of the design, it is described loading put on be equipped with convenient for driving load set rotation driving pit or
Drive block, the driving pit or drive block make 360 ° of annular array distributions around loading set axis.Drive pit and driving
Block realizes the relative rotation for loading set with shell convenient for docking with rotary drive mechanisms such as motors.
As the further improvement of the design, the shell is externally provided with outer lining, and the outer lining wraps up the shell.Outer lining is just
In raising product decoration and product strength.
The beneficial effects of the invention are as follows：The present invention loads set by being cased on shell, utilizes guide sleeve and feed nut
Relative rotation realize load needle feeding, load needle push firing pin, stored energy mechanism energy storage backward, firing pin is pulled to shell tail portion
Afterwards, it hooks claw hook and lives firing pin, for firing pin by accumulation of energy, when use, which extracts, loads set, and Needleless injection head is connected to housing head, needleless note
The piston rod for penetrating head supports the only firing pin head, by lower button, hooks pawl and discharges firing pin, firing pin impacts Wuzhong without needle tray injection head
Piston, medical fluid high speed is projected, structure is simple, and it is convenient to load, and convenient for storage, whole device is small in size.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is whole schematic cross-sectional view of the invention.
Fig. 2 is injection status diagram of the invention.
Fig. 3 is limit sleeve stereoscopic schematic diagram of the invention.
1. load set, 2. feeding screw threads, 3. snap rings, 4. sliding pins, 5. feed nuts, 6. turning sets, 7. energy storage bullets in figure
Spring, 8. firing pins, 9. outer linings, 10. shells, 11. reset springs, 12. return pins, 13. release buttons, 14. hook pawls, 15. positive stop hooks,
16. annular hook groove, 17. impact chambers, 18. bindiny mechanisms, 19. limit sleeves, 20. limit holes, 21. limiting slots, 22. loading needles, 23.
Guiding taper hole, 24. tapered surfaces, 25. limited ring grooves, 26. driving pits, 27. claws, 28. card slots, 29. Needleless injection heads.
Specific embodiment
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, illustrative examples therein and says
It is bright to be only used to explain the present invention but not as a limitation of the invention.
Embodiment：A kind of dedicated needleless injector of beautifying medical, including shell 10, the firing pin being arranged in the shell 10
8, be arranged on the shell 10 and the stored energy mechanism of forward thrust is applied to the firing pin 8, is arranged on the shell 10 and
For discharging the hook pawl 14 of firing pin 8, the shell 10 is interior equipped with the impact chamber 17 extended along 10 axis direction of shell, described
Firing pin 8 is arranged in the impact chamber 17, and 8 axis of firing pin is parallel with impact 17 axis of chamber, 10 front end of shell
Equipped with the bindiny mechanism 18 being detachably connected convenient for Needleless injection head 29,10 front end of shell is cased with loading set 1, the loading
It covers to be equipped with inside 1 tail end and be equipped in the limit sleeve 19 for loading set 1 and axially rotating, the limit sleeve 19 along the limit sleeve
The limit hole 20 that 19 axis extend, 20 side of limit hole are equipped with the limiting slot extended along 20 generatrix direction of limit hole
21, it is inserted in the limit hole 20 and loads needle 22, the needle 22 that loads is equipped with the sliding pin 4 for protruding into the limiting slot 21, the dress
It carries 22 front end of needle and is equipped with feeding screw thread 2,22 tail end of loading needle stretches out 19 tail end of limit sleeve, 19 front end of limit sleeve
Loading set 1 in be equipped with the feed nut 5 cooperated with the feeding screw thread 2, loadings covers 1 pair of feed nut 5 circumferentially
Limit, 19 tail end of limit sleeve are equipped with the claw 27 to extend back, and 10 front end of shell is equipped with to be cooperated with the claw 27
Card slot 28, i.e. the claw 27 and the card slot 28 be in mated condition, and the limit sleeve 19 is with the shell 10 without opposite
Rotation.
It is real using the relative rotation of guide sleeve and feed nut 5 by being cased with loading set 1 on the housing 10 in above-mentioned design
The feeding for now loading needle 22 loads needle 22 and pushes firing pin 8 backward, stored energy mechanism energy storage, after firing pin 8 is pulled to 10 tail portion of shell,
It hooking pawl 14 and hooks firing pin 8, for firing pin 8 by accumulation of energy, when use, which extracts, loads set 1, Needleless injection head 29 is connected to 10 head of shell,
The piston rod of Needleless injection head 29 supports only 8 head of firing pin, by lower button, hooks pawl 14 and discharges firing pin 8, firing pin 8 impacts nothing
The piston of needle injection head projects medical fluid high speed, and structure is simple, and it is convenient to load, and convenient for storage, whole device is small in size.
As the further improvement of the design, 19 tail end of limit sleeve is equipped with guiding taper hole 23, the guiding taper hole 23
Tail end aperture is greater than the 23 head aperture of guiding taper hole, 23 axis of guiding taper hole and 20 axis collinear of limit hole,
10 front end of shell is equipped with the tapered surface 24 cooperated with the guiding taper hole 23.Guiding taper hole 23 is convenient for shell 10 and loads set
1 docking, it is easy to assembly.
As the further improvement of the design, it is equipped with snap ring 3 in the loading set 1, the guide sleeve periphery is equipped with and institute
State the limited ring groove 25 of the cooperation of snap ring 3.The snap ring 3 is convenient for the installation of limit sleeve 19, and front and back is altered after preventing limit sleeve 19 from installing
It is dynamic.
As the further improvement of the design, it is described load 1 tail end of set and be equipped be bonded with the 10 front end outer wall of shell
Turning set 6 loads the stability that set 1 and shell 10 relatively rotate convenient for being promoted.
As the further improvement of the design, the stored energy mechanism is the energy-stored spring 7 covered on the firing pin 8, described
Only 10 tail end of shell is supported in 7 one end of energy-stored spring, and 7 other end of energy-stored spring supports the only firing pin 8, i.e., the described energy storage bullet
Spring 7 is applied with forward elastic force to the firing pin 8, and using spring energy-storage, structure is simple, at low cost.
As the further improvement of the design, the hook pawl 14 is rotatablely connected with the shell 10, the hook pawl 14 and institute
The axis for stating the rotation connection of shell 10 is vertical with 10 axis of shell, and 8 tail end of firing pin is equipped with annular hook groove 16, the hook
14 one end of pawl is equipped with the positive stop hook 15 cooperated with the annular hook groove 16, and the hook pawl 14 is L shape, and 10 tail end of shell is equipped with
Release button 13,13 front end of release button, which is supported, stops the not set loop-hook one end of the hook pawl 14, before the release button 13
The shell 10 of side is equipped with reset spring 11, and described 11 one end of reset spring is equipped with return pin 12, and 12 tail end of return pin supports
Only the not set loop-hook one end of the hook pawl 14 and push the not set loop-hook one end of the hook pawl 14 swing backward.Pawl 14 is hooked to adopt
It is operated with L shape and by release button 13, easy to operate, reset spring 11 and return pin 12 are convenient for improving hook 14 stability of pawl,
Prevent 8 false triggering of firing pin.
As the further improvement of the design, the bindiny mechanism 18 is connection screw thread, easy to connect, high reliablity.
As the further improvement of the design, the set 1 that loads is equipped with the driving pit that 1 rotation of set is loaded convenient for driving
26 or drive block, the driving pit 26 or drive block cover 1 axis around the loading and make the distribution of 360 ° of annular arrays.Drive pit
26 and drive block convenient for dock with rotary drive mechanisms such as motors, realize the relative rotation for loading set 1 and shell 10.
As the further improvement of the design, the shell 10 is externally provided with outer lining 9, and the outer lining 9 wraps up the shell 10.
Outer lining 9 is convenient for raising product decoration and product strength.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of dedicated needleless injector of beautifying medical, including shell, setting in the intracorporal firing pin of the shell, be arranged in the shell
Apply the hook pawl of the stored energy mechanism, setting of forward thrust on the housing and for discharging firing pin on body and to the firing pin,
The impact chamber extended along the shell axis direction is equipped in the shell, the firing pin setting is intracavitary in the impact, described
Firing pin axis is parallel with the impact cavity axis, which is characterized in that the housing forward end is equipped with detachable convenient for Needleless injection head
The bindiny mechanism of connection, the housing forward end are cased with loading set, and the loading set tail end inside is axial equipped with covering around the loading
The limit sleeve of rotation, the limit sleeve is interior to be equipped with the limit hole extended along the limit sleeve axis, and the limit hole side is equipped with
Along the limiting slot of limit hole generatrix direction extension, loading needle is inserted in the limit hole, the loading needle is equipped with and protrudes into institute
The sliding pin of limiting slot is stated, the loading needle front end is equipped with feeding screw thread, and the limit sleeve tail end, institute are stretched out in the loading backshank end
It states and is equipped with the feed nut being threadedly engaged with the feeding in the loading set of limit sleeve front end, the loading set is to the feeding spiral shell
Female circumferential limit, the limit sleeve tail end be equipped with the claw to extend back, and the housing forward end is equipped with to be cooperated with the claw
Card slot, i.e., the described claw and the card slot are in mated condition, and the limit sleeve and the shell are without relative rotation.
2. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that the limit sleeve tail end is set
There is guiding taper hole, guiding taper hole tail end aperture is greater than guiding taper hole head aperture, the guiding taper hole axis and institute
Limit hole axis collinear is stated, the housing forward end is equipped with the tapered surface cooperated with the guiding taper hole.
3. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that be equipped in the loading set
Snap ring, the guide sleeve periphery are equipped with the limited ring groove cooperated with the snap ring.
4. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that the loading set tail end is set
There is the turning set being bonded with the housing forward end outer wall.
5. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that the stored energy mechanism is set
Energy-stored spring on the firing pin, described energy-stored spring one end are supported only the shell tail end, the energy-stored spring other end and are supported
The only firing pin, i.e., the described energy-stored spring are applied with forward elastic force to the firing pin.
6. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that the hook pawl and the shell
Body rotation connection, the axis that the hook pawl is connect with the housing into rotation is vertical with the shell axis, and the firing pin tail end is set
There is annular hook groove, the described pawl one end that hooks is equipped with the positive stop hook cooperated with the annular hook groove, and the hook pawl is L shape, the shell
Tail end is equipped with release button, and the release button front end, which is supported, stops described not set loop-hook one end of hook pawl, before the release button
The shell of side is equipped with reset spring, and described reset spring one end is equipped with return pin, and the return pin tail end supports the only hook pawl
Not set loop-hook one end and described not set loop-hook one end of hook pawl is pushed to swing backward.
7. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that the bindiny mechanism is to connect
Connect screw thread.
8. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that the loading, which is put on, to be equipped with
The driving pit or drive block of set rotation are loaded convenient for driving, the driving pit or drive block are made around loading set axis
360 ° of annular array distributions.
9. the dedicated needleless injector of a kind of beautifying medical according to claim 1, characterized in that the shell is externally provided with outer
Lining, the outer lining wrap up the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668365.XA CN108837241A (en) | 2018-06-26 | 2018-06-26 | A kind of dedicated needleless injector of beautifying medical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668365.XA CN108837241A (en) | 2018-06-26 | 2018-06-26 | A kind of dedicated needleless injector of beautifying medical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108837241A true CN108837241A (en) | 2018-11-20 |
Family
ID=64202322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810668365.XA Pending CN108837241A (en) | 2018-06-26 | 2018-06-26 | A kind of dedicated needleless injector of beautifying medical |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108837241A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4076593A4 (en) * | 2019-12-18 | 2023-12-27 | Integrimedical LLC | Spring loaded medical needle-free injection system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020112Y (en) * | 2007-03-15 | 2008-02-13 | 华中科技大学 | Power head for needleless injector |
| WO2011060786A1 (en) * | 2009-11-20 | 2011-05-26 | Moeller Claus Schmidt | Spring actuated dose delivery device |
| CN102448521A (en) * | 2009-03-31 | 2012-05-09 | 赛诺菲-安万特德国有限公司 | Drug delivery device |
| CN103550848A (en) * | 2013-11-18 | 2014-02-05 | 江西三鑫医疗科技有限公司 | Needle-free syringe |
| CN105413023A (en) * | 2016-01-04 | 2016-03-23 | 苏州肯美威机械制造有限公司 | Needless injector |
-
2018
- 2018-06-26 CN CN201810668365.XA patent/CN108837241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020112Y (en) * | 2007-03-15 | 2008-02-13 | 华中科技大学 | Power head for needleless injector |
| CN102448521A (en) * | 2009-03-31 | 2012-05-09 | 赛诺菲-安万特德国有限公司 | Drug delivery device |
| WO2011060786A1 (en) * | 2009-11-20 | 2011-05-26 | Moeller Claus Schmidt | Spring actuated dose delivery device |
| CN103550848A (en) * | 2013-11-18 | 2014-02-05 | 江西三鑫医疗科技有限公司 | Needle-free syringe |
| CN105413023A (en) * | 2016-01-04 | 2016-03-23 | 苏州肯美威机械制造有限公司 | Needless injector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4076593A4 (en) * | 2019-12-18 | 2023-12-27 | Integrimedical LLC | Spring loaded medical needle-free injection system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181120 |