CN103446644A - Painless intradermal injection instrument - Google Patents
Painless intradermal injection instrument Download PDFInfo
- Publication number
- CN103446644A CN103446644A CN2013104468887A CN201310446888A CN103446644A CN 103446644 A CN103446644 A CN 103446644A CN 2013104468887 A CN2013104468887 A CN 2013104468887A CN 201310446888 A CN201310446888 A CN 201310446888A CN 103446644 A CN103446644 A CN 103446644A
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- China
- Prior art keywords
- back casing
- push rod
- intradermal injection
- injection instrument
- procapsid
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Abstract
The invention discloses a painless intradermal injection instrument which comprises a body, a trigger (1), a locking fixing device (2), a power device (3) and a push rod (4). The body comprises a front shell (5) and a rear shell (6), and the front shell (5) and the rear shell (6) are movably connected with each other and are provided with channels which are communicated with each other; a connecting section (7) is arranged at the front end of the rear shell (6), and fixing pressure holes (8) are formed in the connecting section (7); the locking fixing device is arranged in the channel of the rear shell (6); the push rod (4) is arranged in the channel of the rear shell (6) by the aid of the locking fixing device, and the trigger (1) is arranged at one end of the rear shell (6) and is matched with the push rod; a trigger spring is arranged on the outsides of the channels, one end of the power device (3) is connected with the front shell (5), and the other end of the power device (3) is connected with the push rod (4). The painless intradermal injection instrument has the advantages that the painless intradermal injection instrument is simple in structure, low in manufacturing cost and convenient to use, and the pressure can be regulated according to different injection requirements.
Description
Technical field
The present invention relates to medical instruments field, be specifically related to painless intradermal injection instrument.
Background technology
Painless intradermal injection instrument by external power supply to liquid medicine pressurization, thereby the liquid drug that makes predetermined close with the form of high-voltage high-speed by very thin micropore, transdermal, enter into the device of a kind of drug conveying of subcutis.
The complex structure of current painless intradermal injection instrument, cost of manufacture is high, and volume is large and using method is complicated, is unfavorable for that medical personnel or patient use.
Summary of the invention
The problem to be solved in the present invention be to provide a kind of simple in structure, cost of manufacture is low, the painless intradermal injection instrument of the convenient different adjustment pressure that uses and can require according to injection.
For addressing the above problem, the invention provides painless intradermal injection instrument, comprise body, trigger, locking and fixing device, power set and push rod; Described power set are the high pressure spring, described high pressure spring is provided with at least one, described locking and fixing device comprises card article, rotating shaft and lever, described card article and lever are flexibly connected by rotating shaft, described body comprises procapsid and the back casing of flexible connection, procapsid and back casing be two and be connected to each other and can counterrotating housing, and described procapsid and back casing are by rotation scalable relative distance; Described procapsid front inner wall is provided with screw thread, and for fixedly medicated core is installed, described procapsid and back casing are provided with the passage of mutual UNICOM; Described back casing front end is provided with linkage section, and described linkage section is provided with the fixation pressure hole, and described fixation pressure hole is provided with 1-6.Described fixation pressure hole is controlled by power set; Described locking and fixing device is located in the back casing passage; Described push rod is located at by locking and fixing device in the passage of back casing, and described trigger is located at an end of back casing and suitable with push rod; Described passage is provided with the percussion spring outward, and described power set one end is connected with procapsid, and the other end is connected with push rod.
As a further improvement on the present invention, in described back casing, be provided with baffle plate, described baffle plate is divided into 2 cavitys by back casing, described baffle plate is provided with through hole, described passage is through through hole, and described push rod contacts with trigger by passage, and described percussion spring and lever are suitable.
As a further improvement on the present invention, between described trigger and push rod, be provided with by trim ring.
As a further improvement on the present invention, described procapsid or back casing outer surface are provided with at least three anti-skidding protuberances, and described procapsid and back casing outer surface are provided with suitable protective jacket.
The present invention compared with prior art, has the following advantages.
(1), painless intradermal injection instrument, comprise body, trigger, locking and fixing device, power set and push rod; Described body comprises procapsid and the back casing of flexible connection, and procapsid and back casing be two and be connected to each other and can counterrotating housing, and described procapsid and back casing are by rotation scalable relative distance; Described procapsid front inner wall is provided with screw thread, and for fixedly medicated core is installed, described procapsid and back casing are provided with the passage of mutual UNICOM; Described back casing front end is provided with linkage section, and described linkage section is provided with the fixation pressure hole; Described locking and fixing device is located in the back casing passage; Described push rod is located at by locking and fixing device in the passage of back casing, and described passage is provided with the percussion spring outward, and described trigger is located at an end of back casing and suitable with push rod; Described power set one end is connected with procapsid, and the other end is connected with push rod.Of the present invention simple in structure, cost of manufacture is low, volume is small and exquisite to be easy to carry and to use.Locating hole is when the front and back housing rotates relatively, for distinguishing the distance of push rod from preposition housing, the distance that power set are stretched.The pressure that when this is injected apart from decision, medicine obtains, enter the hypodermic depth in order to control injecting fluid.During use, medicated core is fixed in the procapsid passage, the difference required according to injection, by the different distance of forward and backward housing rotating separation, observe and regulate painless intradermal injection instrument by locating hole and reach the injection requirement, then only need to press trigger action, impel locking device to discharge push rod, power set give push rod impulse force forward, impact medicated core, inject complete, by the front and back housing is rotated back to initial position, push rod can be fixed by the indentation fixture again, can be prepared to inject for the second time.
(2), described power set are the high pressure spring, described high pressure spring is provided with at least one.The difference that can require according to injection arranges the high pressure spring of varying number, the high pressure spring has certain restoring force along with widening of distance between procapsid and back casing, this power can give push rod with power in the moment of indentation device release push rod, thereby make medicated core obtain high pressure, it is subcutaneous that the medicinal liquid in medicated core enters human body.
(3), described locking and fixing device comprises card article, rotating shaft and lever, described card article and lever are flexibly connected by rotating shaft; Be provided with baffle plate in described back casing, described baffle plate is divided into 2 cavitys by back casing, and described baffle plate is provided with through hole, described passage is through through hole, described push rod contacts with trigger by passage, and described passage is provided with the percussion spring outward, and described percussion spring and lever are suitable.Described percussion spring not only plays the effect of power transmission, and makes average the acting on lever of trigger role power, has guaranteed the stability of system.Between described trigger and push rod, be provided with by trim ring.Further guaranteed that by trim ring trigger role power acts on lever uniformly.Make like this trigger power can be acted on to locking and fixing device uniformly in the used time of doing that is subject to power, make locking and fixing device be triggered rapidly, push rod is discharged.
(4), described procapsid or back casing outer surface be provided with anti-skidding protuberance, described anti-skidding protuberance is provided with at least three, it is easy to use that anti-skidding protuberance increases friction when housing relatively rotates, and make painless intradermal injection instrument be convenient to place.
(5), described procapsid and back casing outer surface be provided with suitable protective jacket, the housing cover plays protection to housing and avoids it to be worn, and has increased the service life of painless intradermal injection instrument.
The accompanying drawing explanation
The axonometric chart that Fig. 1 is the painless intradermal injection instrument of the present invention.
The structural representation that Fig. 2 is the painless intradermal injection instrument of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As depicted in figs. 1 and 2, painless intradermal injection instrument, comprise body, trigger 1, locking and fixing device 2, power set 3 and push rod 4.Body comprises procapsid 5 and the back casing 6 of flexible connection, and procapsid 5 and back casing 6 are provided with the passage of mutual UNICOM; Back casing 6 front ends are provided with linkage section 7, disperse to be provided with six fixation pressure holes 8 on linkage section 7; Fixation pressure hole 8 according to the distance of distance procapsid 5 by as far as closely being followed successively by: a hole, two holes, three holes, four holes, five holes and six holes, procapsid 5 or back casing 6 outer surfaces are provided with anti-skidding protuberance 11, anti-skidding protuberance 11 is provided with three.
Locking and fixing device 2 is located in back casing 6 passages; Locking and fixing device 2 comprises card article, rotating shaft and lever, and card article and lever are flexibly connected by rotating shaft.Push rod 4 is fixed in the passage of back casing 6 by the card article of locking and fixing device 2.
Be provided with baffle plate 10 in back casing 6, baffle plate 10 is divided into 2 cavitys by back casing, and baffle plate 10 is provided with through hole, and passage is through through hole, and push rod 4 contacts with trigger 1 by passage, between trigger 1 and push rod 4, is provided with by trim ring.Passage is provided with percussion spring 9 outward, and percussion spring 9 is suitable with lever, presses trim ring suitable with percussion spring 9.
At first will inject medicated core is fixed in the passage of procapsid 5 by screw thread, while then the procapsid of painless intradermal injection instrument 5 rotational display relative to back casing 6 being gone out to locating hole and is a hole, two holes or three holes, press trigger squeeze 1, by percussion spring 9, make the lever of locking and fixing device 2 press down and impel the rotating shaft rotation, make card article discharge push rod 4, power set 3 provide thrust for push rod 4, the thrust that push rod 4 obtains is less, the power acted on the push rod device of medicated core is also less, and the medicinal liquid in medicated core enters the Intradermal tissue.When the locating hole demonstrated is four holes, five holes or six holes, the thrust that push rod 4 obtains is larger, and the power acted on the push rod device of medicated core is also larger, and the medicinal liquid in medicated core enters muscle.
After injection, procapsid 5 and back casing 6 are restPosed, make push rod 4 come back to initial position, fixing by locking and fixing device 2, the medicated core of having injected is changed, again change the medicated core that medicinal liquid is housed, can inject for the second time.
Foregoing is example of the present invention and explanation; but do not mean that the obtainable advantage of the present invention is so limited, may be to wherein one or more of the advantage that realizes in the simple transformation of structure and/or some embodiments all in the application's protection domain in every practice process of the present invention.
Claims (8)
1. painless intradermal injection instrument, is characterized in that: comprise body, trigger (1), locking and fixing device (2), power set (3) and push rod (4); Described body comprises procapsid (5) and the back casing (6) of flexible connection, and described procapsid (5) and back casing (6) are established communicating passage; Described back casing (6) front end is provided with linkage section (7), and described linkage section (7) is provided with fixation pressure hole (8), and described fixation pressure hole (8) is controlled by power set (3); Described locking and fixing device (2) is located in back casing (6) passage; Described push rod (4) is located in the passage of back casing (6) by locking and fixing device (2), and described trigger (1) is arranged at an end of back casing (6) and suitable with push rod; Described passage is provided with percussion spring (9) outward, and described power set (3) one ends are connected with procapsid (5), and the other end is connected with push rod (4).
2. painless intradermal injection instrument according to claim 1, it is characterized in that: described power set (3) are the high pressure spring, and described high pressure spring is provided with at least one.
3. painless intradermal injection instrument according to claim 1, it is characterized in that: described locking and fixing device (2) comprises card article, rotating shaft and lever, and described card article and lever are flexibly connected by rotating shaft.
4. painless intradermal injection instrument according to claim 1, it is characterized in that: be provided with baffle plate (10) in described back casing (6), described baffle plate (10) is divided into 2 cavitys by back casing, described baffle plate (10) is provided with through hole, described passage is through through hole, described push rod (4) contacts with trigger (1) by passage, and described percussion spring and lever are suitable.
5. according to the described painless intradermal injection instrument of claim 1 or 4, it is characterized in that: between described trigger (1) and push rod (4), be provided with by trim ring.
6. painless intradermal injection instrument according to claim 1 is characterized in that: described fixation pressure hole (8) is provided with 1-6.
7. painless intradermal injection instrument according to claim 1, it is characterized in that: described procapsid (5) or back casing (6) outer surface are provided with anti-skidding protuberance (11).
8. painless intradermal injection instrument according to claim 1 is characterized in that: described procapsid (5) is provided with suitable protective jacket with back casing (6) outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446888.7A CN103446644B (en) | 2013-09-27 | 2013-09-27 | Painless intradermal injection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446888.7A CN103446644B (en) | 2013-09-27 | 2013-09-27 | Painless intradermal injection instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103446644A true CN103446644A (en) | 2013-12-18 |
| CN103446644B CN103446644B (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310446888.7A Active CN103446644B (en) | 2013-09-27 | 2013-09-27 | Painless intradermal injection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103446644B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030105430A1 (en) * | 2001-11-30 | 2003-06-05 | Elan Pharma International Limited Wil House | Automatic injector |
| CN202426974U (en) * | 2011-12-08 | 2012-09-12 | 昆山安卓精密模具有限公司 | Needleless injector with single hole |
| US20130023822A1 (en) * | 2011-01-26 | 2013-01-24 | Intelliject, Inc. | Devices and methods for delivering medicaments from a multi-chamber container |
| CN103025372A (en) * | 2010-06-25 | 2013-04-03 | 生物注射股份有限公司 | Intradermal injection device |
| CN203494007U (en) * | 2013-09-27 | 2014-03-26 | 江苏丞宇米特医疗科技有限公司 | Painless intradermal injection instrument |
-
2013
- 2013-09-27 CN CN201310446888.7A patent/CN103446644B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030105430A1 (en) * | 2001-11-30 | 2003-06-05 | Elan Pharma International Limited Wil House | Automatic injector |
| CN103025372A (en) * | 2010-06-25 | 2013-04-03 | 生物注射股份有限公司 | Intradermal injection device |
| US20130023822A1 (en) * | 2011-01-26 | 2013-01-24 | Intelliject, Inc. | Devices and methods for delivering medicaments from a multi-chamber container |
| CN202426974U (en) * | 2011-12-08 | 2012-09-12 | 昆山安卓精密模具有限公司 | Needleless injector with single hole |
| CN203494007U (en) * | 2013-09-27 | 2014-03-26 | 江苏丞宇米特医疗科技有限公司 | Painless intradermal injection instrument |
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| Publication number | Publication date |
|---|---|
| CN103446644B (en) | 2016-04-27 |
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