CN104288871B - Self-service filling gun - Google Patents
Self-service filling gun Download PDFInfo
- Publication number
- CN104288871B CN104288871B CN201410594435.3A CN201410594435A CN104288871B CN 104288871 B CN104288871 B CN 104288871B CN 201410594435 A CN201410594435 A CN 201410594435A CN 104288871 B CN104288871 B CN 104288871B
- Authority
- CN
- China
- Prior art keywords
- syringe
- entry needle
- quill housing
- sidewall
- piston
- 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.)
- Expired - Fee Related
Links
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
- A61M5/204—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically connected to external reservoirs for multiple refilling
-
- 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
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M5/31513—Piston constructions to improve sealing or sliding
-
- 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
- A61M2005/206—With automatic needle insertion
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 relates to field of medical device, specifically for a kind of self-service filling gun.The present invention includes quill housing, injection device and propulsion plant；Described injection device includes elastic component, entry needle, syringe, piston, remaining needle；It is to be in sealing contact so that being positioned at the syringe inner chamber formation sealing chamber below piston between syringe lower end wall and entry needle and between piston and the sidewall of syringe；Described entry needle upper surface seals, and the sidewall of entry needle is provided with through hole, and it is indoor that through hole is positioned at annular seal space；Described propulsion plant includes that force feed part and pushing piece, one end of force feed part are hinged on the outer wall of quill housing, and the outer end of pushing piece is hinged on the inner surface of force feed part；The sidewall of described syringe is provided with in appearance can be with the stopper slot of pushing piece the inner phase clamping, the perforate that the outer end of pushing piece is provided with through quill housing sidewall and stopper slot clamping.The present invention has advantage easy to carry, simple to operate, that injection is accurate, can be competent at the multiple position of human body injects.
Description
Technical field
The present invention relates to field of medical device, specifically for a kind of self-service filling gun.
Background technology
Injection is one of most basic treatment means of modern medicine, is therefore patient in daily curative activity
Carrying out injection is that healthcare givers is the most basic, one of hard work.Due to some objective reasons, at present
The development of the medical resource of China does not also catch up with the society demand to medical resource, thus healthcare givers
Working the heaviest, there is also medical personnel one time when sufferer is numerous is difficult to take into account all sufferers, and
Cause the generation being delayed phenomenon injection time.
In order to solve the problems referred to above, those skilled in the art also has devised that some are intended to can autonomous operation
Syringe to alleviate above-described doctors and patients' pressure, such as Chinese patent CN201320485587 discloses one
Planting self-service intravenous injector, also Chinese patent CN200820202109 discloses another self-service note
Emitter.But all there is area for improvement in the above-mentioned self-service syringe of both:
1, the Chinese patent CN201320485587 that such as first is previously mentioned discloses a kind of self-service vein
Syringe, its structure is complicated and in-convenience in use is difficult to learn to operate very much for common patient and manufactures
Relatively costly thus cannot penetration and promotion application；
2, the Chinese patent CN200820202109 that second is previously mentioned discloses another self-service injection
Device, this self-help type syringe is the same with the principle of traditional ordinary syringe, is all extruded by push rod
Medicament is injected into internal by mode, but such injection system does not fully take into account the physiology mechanism of staff,
Typically require in use and use two gestures clamping this device thumb press push rod could well hold note
Penetrate direction thus usual intravenous basic demand can only be injected to distal end when to oneself injection medicine and be
Inject to centripetal end, so injection centrifugal dirty closely, blood circulation is fast, can faster play therapeutic effect, the most right
It is difficult with this posture in the position in addition to arm to inject successfully, thus there is the limitation on using.
3, above the two patent and existing syringe needle penetrate position and the degree of depth are all by using
Person individual experience judge whether to put in place, and the user of the syringe of autonomous type be not necessarily by
The personnel of professional medical training thus be difficult to hold the degree of depth that penetrates of entry needle, if having can in operational error
Self can be damaged, thus the syringe that this is also existing autonomous type is difficult to promote critically important
One of reason.
On the other hand, in Military Medical field, the most increasingly pay attention to what the battlefield medicine of individual soldier was independently saved oneself
Ability.In order to meet the specific demand of operation, then need one can easy to carry, simple to operate, injection
The most self-service syringe, and there presently does not exist a kind of self-help type syringe meeting above-mentioned condition.
Summary of the invention
It is an object of the invention to: provide a kind of easy to carry, simple to operate, injection accurately, can be competent at
The self-service filling gun of one of human body multiple position injection.
The present invention is achieved through the following technical solutions: a kind of self-service filling gun, it is characterised in that: it includes
With quill housing, the injection device being arranged in quill housing tube chamber of roof and be arranged on quill housing both sides
Propulsion plant；
Described injection device includes elastic component, entry needle, syringe, piston, remaining needle；Described entry needle position
In syringe, and the lower end of entry needle passes syringe lower end wall；The upper end of entry needle is connected with elastic component lower end,
Piston is positioned at the inner chamber of syringe and is installed on entry needle lateral wall；Injector Bushing is located at entry needle and extends pin
The periphery of cylinder part；Syringe is placed in inside the tube chamber of quill housing, and the lower end of entry needle and remaining needle is extended
Quill housing, elastic component upper end is connected on quill housing inner chamber roof inner surface；
For being in sealing contact so that being positioned between syringe lower end wall and entry needle and between piston and the sidewall of syringe
Syringe inner chamber below piston is formed and seals chamber；Described entry needle upper surface seals, on the sidewall of entry needle
Being provided with through hole, it is indoor that through hole is positioned at annular seal space；
Described propulsion plant includes that force feed part and pushing piece, one end of force feed part are hinged on the outer wall of quill housing,
The outer end of pushing piece is hinged on the inner surface of force feed part；The sidewall of described syringe be provided with in appearance can with push away
Sending the stopper slot of part the inner phase clamping, the outer end of pushing piece passes perforate and the stopper slot that quill housing sidewall is provided with
Clamping.
Before relatively for technology, the invention have the benefit that
1, the mode of the push-press type that the present invention changes the past syringe employing completely is injected, and uses hands
Hold that to make use of the feature of wrist to be capable of after the mode of extruding is injected autonomous to centripetal
End injection, simultaneously because injection needle the most more can facilitate the self observation of human eye therefore can
Enough positions holding injection accurately, the most such mode not only can apply to arm, and
And injection operation all can be well completed for the position such as chest, leg；
2, the syringe that the present invention is different from the past is the internal mode that is injected directly into by medicine, but
Remaining needle is delivered to corresponding injection site, common syringe the most both can have been used to inject
Can also have an intravenous drip, select various applied range；
3, present invention utilizes the differential pressure principle of air, until pressure differential disappears during entry needle intravasation
Lose entry needle meeting automatic rebounding, even if thus not being that the personnel trained through professional medical also can
Enough complete to inject without worrying that operation not only makes entry needle puncture pierce through blood vessel.
Accompanying drawing explanation
Fig. 1 is embodiment 1 schematic cross-section；
Fig. 2 is partial enlarged drawing at A；
Fig. 3 is partial enlarged drawing at B；
Fig. 4 is embodiment 1 front view；
Fig. 5 is embodiment 1 left view；
Fig. 6 is the view that embodiment 1 renovates when opening；
Fig. 7 is embodiment 2 schematic cross-section
Fig. 8 is entry needle schematic diagram；
Fig. 9 is remaining needle；
Figure 10 is that the present invention uses view.
Label declaration: 1-elastic component, 2-entry needle, 3-syringe, 4-piston, 5-remaining needle, 6-annular seal space
Room, 7-through hole, 8-force feed part, 9-pushing piece, 10-stopper slot, 11-base shell, 12-renovates, 13-fills in
Lid, 14-pipe fitting.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings the present invention is elaborated:
The present invention includes the quill housing with roof, the injection device being arranged in quill housing tube chamber and setting
Propulsion plant in quill housing both sides；
Described injection device includes elastic component 1, entry needle 2, syringe 3, piston 4, remaining needle 5；Described note
Penetrate pin 2 and be positioned at syringe 3, and the lower end of entry needle 2 passes syringe 3 lower end wall；The upper end of entry needle 2
Being connected with elastic component 1 lower end, piston 4 is positioned at the inner chamber of syringe 3 and is installed on entry needle 2 lateral wall；
Remaining needle 5 is set in entry needle 2 and extends the periphery of syringe 3 part；Syringe 3 is placed in the tube chamber of quill housing
Inside, the lower end of entry needle 2 and remaining needle 5 extends quill housing, and elastic component 1 upper end is connected to sleeve pipe
On shell inner chamber roof inner surface；
For being in sealing contact between syringe 3 lower end wall and entry needle 2 and between the sidewall of piston 4 and syringe 3
Make to be positioned at syringe 3 inner chamber below piston 4 and form sealing chamber 6；Described entry needle 2 upper surface seals,
The sidewall of entry needle 2 is provided with through hole 7, and through hole 7 is positioned at sealing chamber 6；
Described propulsion plant includes force feed part 8 and pushing piece 9, and one end of force feed part 8 is hinged on outside quill housing
On wall, the outer end of pushing piece 9 is hinged on the inner surface of force feed part 8；The sidewall of described syringe 3 is in appearance
Being provided with can be with the stopper slot 10 of pushing piece 9 the inner phase clamping, and the outer end of pushing piece 9 passes quill housing sidewall
The perforate being provided with and stopper slot 10 clamping.
Here, so that entry needle 2 syringe needle can penetrate skin smoothly, thus entry needle 2 needs to extend
Go out remaining needle lower end.
Injection device is core component, is also the parts of vulnerable to pollution simultaneously, thus generally uses medical
Disposable material is made in case major structure becomes cross infection.And quill housing and propulsion plant after sterilization may be used
With Reusability, after per injection, only injection device need to be changed.
Two kinds of simple schemes replacing injection device presented below.
Embodiment 1:
Further, described quill housing includes base shell 11 and renovates 12；Elastic component 1 with quill housing roof is
Removable connection makes can completely be taken out by injection device when renovating 12 and opening.
The quill housing of this scheme uses and turns over the mode of conjunction to complete the replacing of injection device, simple.
Embodiment 2:
Further, described quill housing includes pipe fitting 14 and is arranged on the gag 13 of pipe fitting 14 upper opening；
Injection device puts into pipe fitting 14 by opening, and elastic component 1 is fixedly arranged on gag 13 lower surface.
In this scheme, gag 13 is also adopted by disposable material and makes, so changing injection device when
Just can connect gag 13 and take out replacing together.Its principle and from rear end change pen core water-color paintbrush principle one to.This
The mode of kind is more simple and convenient than embodiment 1.
Further, the outer surface of described force feed part 8 is provided with anti-skidding lines or antiskid groove.
So can increase the frictional force of contact surface, can preferably prevent hand from slipping when grasping.
The work process of the present invention is as follows:
During use, first injection device is installed and put in place, hold with a hand the present invention the pin by entry needle 2 afterwards
Head alignment also inserts injection site；The most slowly holding with a firm grip propulsion plant, the grip force of hand can change into propelling movement
The propulsive force of part, then pushing piece then can promote syringe 3 slowly downward, and drive entry needle 2 and stay simultaneously
Put pin to go deep in body；When the syringe needle of entry needle 2 penetrates into blood vessel, entry needle 2 automatic rebounding handle
Remaining needle 5 is stayed Ink vessel transfusing and is completed all operations.
The operation principle of the present invention is as follows:
In use, after entry needle 2 thrusts skin, owing to being fully sealed position in tissue, because of
And, sealing chamber 6 isolates with outside air, and now sealing chamber 6 is sealing state；Due to entry needle
Syringe needle is positioned at subcutis or muscular tissue, therefore there is no concern that air enters from syringe needle and sealed chamber 6
In, the propelling movement effect bottom cylinder 3 at pushing piece moves down afterwards, now seals the space meeting in chamber 6
Being forced to expand, therefore the pressure of airtight chamber is slightly below atmospheric pressure, and extraneous pressure energetically can be to piston 4
Apply a downward pressure, to offset the restoring force of elastic component, reduce or stop the sky sealed in chamber 6
Between expand further, piston 4 drives entry needle 2 to advance in skin；When entry needle 2 penetrates blood vessel,
Blood can be rapidly along entry needle 2 internal reflux and by through hole 7 injection sealing chamber 6, and blood flows to annular seal space
The pressure differential sealed between chamber 6 and air can be gradually eliminated, therefore in the effect of elastic component 1 after room 6 is inner
Under, make again piston 4 up move, thus entry needle 2 follows piston back shrinkage, and remaining needle is continued
Continue and stay Ink vessel transfusing.
Although the present invention uses specific embodiment and alternative thereof illustrate the present invention and illustrate, but should
Work as understanding, all can implement without departing from the variations and modifications in the scope of the present invention.Therefore,
Being to be understood that in addition to being limited by appended claims and condition of equivalent thereof, the present invention is not by all senses
On restriction.
Claims (4)
1. a self-service filling gun, it is characterised in that: it includes the quill housing with roof, is arranged on set
Injection device in shell tube chamber and be arranged on the propulsion plant of quill housing both sides；
Described injection device includes elastic component (1), entry needle (2), syringe (3), piston (4), indwelling
Pin (5)；Described entry needle (2) is positioned at syringe (3), and the lower end of entry needle (2) passes syringe (3)
Lower end wall；The upper end of entry needle (2) is connected with elastic component (1) lower end, and piston (4) is positioned at syringe (3)
Inner chamber and be installed on entry needle (2) lateral wall；Remaining needle (5) is set in entry needle (2) and extends
The periphery of syringe (3) part；Syringe (3) is placed in inside the tube chamber of quill housing, entry needle (2) and staying
Quill housing is extended in the lower end putting pin (5), and elastic component (1) upper end is connected to table in quill housing inner chamber roof
On face；
Between syringe (3) lower end wall and entry needle (2) and piston (4) and syringe (3) sidewall it
Between for be in sealing contact so that be positioned at piston (4) lower section syringe (3) inner chamber formed seal chamber (6)；Institute
Stating entry needle (2) upper surface to seal, the sidewall of entry needle (2) is provided with through hole (7), through hole (7) position
In sealing chamber (6)；
Described propulsion plant includes force feed part (8) and pushing piece (9), and one end of force feed part (8) is hinged on
On the outer wall of quill housing, the outer end of pushing piece (9) is hinged on the inner surface of force feed part (8)；Described pin
The sidewall of cylinder (3) is provided with in appearance and can push with the stopper slot (10) of pushing piece (9) the inner phase clamping
The perforate that the outer end of part (9) is provided with through quill housing sidewall and stopper slot (10) clamping.
Self-service filling gun the most according to claim 1, it is characterised in that: described quill housing includes base
Seat shell (11) and renovate (12)；
Elastic component (1) is removable connection so that can noting when renovating (12) and opening with quill housing roof
Injection device completely takes out.
Self-service filling gun the most according to claim 1, it is characterised in that: described quill housing includes pipe
Part (14) and be arranged on the gag (13) of pipe fitting (14) upper opening；Injection device is put into by opening
In pipe fitting (14), and elastic component (1) is fixedly arranged on gag (13) lower surface.
4. according to the self-service filling gun described in Claims 2 or 3, it is characterised in that: described force feed part (8)
Outer surface be provided with anti-skidding lines or antiskid groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410594435.3A CN104288871B (en) | 2014-10-29 | 2014-10-29 | Self-service filling gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410594435.3A CN104288871B (en) | 2014-10-29 | 2014-10-29 | Self-service filling gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104288871A CN104288871A (en) | 2015-01-21 |
| CN104288871B true CN104288871B (en) | 2016-08-24 |
Family
ID=52308971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410594435.3A Expired - Fee Related CN104288871B (en) | 2014-10-29 | 2014-10-29 | Self-service filling gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104288871B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330430A (en) * | 1993-12-06 | 1994-07-19 | Sullivan Robert J | Retractable syringe applicator |
| US6719730B2 (en) * | 1998-04-17 | 2004-04-13 | Becton, Dickinson And Company | Safety shield system for prefilled syringes |
| CN201308680Y (en) * | 2008-10-16 | 2009-09-16 | 中山博泰药械有限公司 | Self-service syringe |
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN203425323U (en) * | 2013-08-09 | 2014-02-12 | 陕西逸夫美疗科技有限公司 | Self-service intravenous injector |
| CN204170223U (en) * | 2014-10-29 | 2015-02-25 | 林新颖 | Self-service filling gun |
-
2014
- 2014-10-29 CN CN201410594435.3A patent/CN104288871B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104288871A (en) | 2015-01-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20171029 |