CN106345012A - Safe injector - Google Patents

Safe injector Download PDF

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Publication number
CN106345012A
CN106345012A CN201610932310.6A CN201610932310A CN106345012A CN 106345012 A CN106345012 A CN 106345012A CN 201610932310 A CN201610932310 A CN 201610932310A CN 106345012 A CN106345012 A CN 106345012A
Authority
CN
China
Prior art keywords
groove
injection tube
push rod
solution cavity
conical head
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
Application number
CN201610932310.6A
Other languages
Chinese (zh)
Inventor
倪日祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wenzhou Longwan Refinement Tube Industry Co Ltd
Original Assignee
Wenzhou Longwan Refinement Tube Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wenzhou Longwan Refinement Tube Industry Co Ltd filed Critical Wenzhou Longwan Refinement Tube Industry Co Ltd
Priority to CN201610932310.6A priority Critical patent/CN106345012A/en
Publication of CN106345012A publication Critical patent/CN106345012A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/19Constructional features of carpules, syringes or blisters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/27General characteristics of the apparatus preventing use
    • A61M2205/276General characteristics of the apparatus preventing use preventing unwanted use

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention discloses a safe injector. The safe injector comprises a syringe with a rubber plug, a push rod, a needle tube and a needle holder, wherein a retraction part is spliced on the needle holder; the needle tube is fixed at one end of the retraction part, and a conical head is arranged at the other end of the retraction part; a slot is formed between the conical head and the retraction part; a mounting groove part is arranged at one end of the syringe; a clamping part is arranged at the bottom of a solution cavity; and when the push rod moves to the bottom of the solution cavity, the clamping part is pressed by an unlocking boss, so that a clamping block is separated from the slot, and the conical head is fixed in a locking groove. The safe injector is convenient and reliable to use without changing the traditional operation habit, and the needle tube can be retracted into the solution cavity of the syringe when injection is completed, so that medical staff can be protected from accidental injury by a polluted needle tip and can be prevented from affecting diseases due to needle tip injury.

Description

A kind of safety injector
Technical field
A kind of the present invention relates to medical instruments field, more specifically, it relates to safety injector.
Background technology
Early in the 15th century, Italian's Ka Di Nellie just proposes the principle of syringe.But the British Bo Yi until 1657 You and reyn ability have carried out first time human trial.The surgery doctor of the French King Louis XVI (1774-1792 is in place) army Raw Abel is also it is contemplated that go out a kind of piston syringe.But it is believed that it is hereby the invention of syringe that the pula of France is irrigated Person.He is to make of silver in the syringe that 1853 supervise, and capacity only has 1 milliliter, and has a screwed piston Rod.
British Cathy Ferguson first uses glass syringe, wherein glass transparent degree good it can be seen that injection medicine Situation.Hereafter have glass tubing metal a syringe with making, available boiling method sterilization, syringe needle can also sharpening again with and disappear Poison.Present syringe is made of plastic, and with once throwing away, greatly reduces the danger that infection occurs during injection.For Guarantee health, prevents cross infection, adopts plastic material the syringe in the present age more.
Because current disposable sterilized syringe has reusable phenomenon, thus increasing the intersection sense of pathogenic bacteria Dye, brings potentially hazardous to user, and after syringe injection simultaneously finishes, needle point exposes the phenomenon stabbing Clinical practice personnel Also carry out see not fresh.
Content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of safety injector, mesh can be solved Front needle tubing needle point exposes the injury to medical personnel, and may destroy injection needle during inhaling medicine to patient injection procedure In injury.
For achieving the above object, the technical scheme is that
A kind of safety injector, including the injection tube with plug, push rod, needle tubing and needle stand, described push rod includes push rod Body, pushing part and press section, described press section is placed in outside injection tube, and described pushing part is connected with plug and is placed in injection tube Interior, retraction part is plugged with needle stand, described needle tubing is fixed on the one end of retraction part, the other end of described retraction part sets There is conical head, between described conical head and retraction part, be provided with draw-in groove;The one end of described injection tube is provided with installation groove portion, described peace The bottom in tankage portion is provided with the intercommunicating pore being connected with the solution cavity of injection tube, and the bottom of described solution cavity is provided with clamping Portion, when needle stand is placed in installation groove portion, the conical head of described retraction part is placed in solution cavity through intercommunicating pore, described clamping Portion is interlocked with draw-in groove;Pushing part is provided with release boss, described release boss is provided with locked groove, when push rod movement is empty to solution During the bottom in chamber, described release boss can press Access Division, so that clamping block is separated with draw-in groove, and conical head is fixed on locked groove Interior.
The present invention is arranged further: described Access Division is made up of several clamping blocks, and described clamping block is around intercommunicating pore circumference Spaced apart, the free end of described clamping block slopes inwardly and is provided with inclined-plane, and the free end of described clamping block is fastened on draw-in groove On, when the bottom of push rod movement to solution cavity, described release boss can press the inclined-plane of clamping block, makes the freedom of clamping block End is displaced outwardly being separated with draw-in groove.
The present invention is arranged further: described install groove portion medial wall be provided with screw thread, described needle stand with install groove portion screw thread Connect.
The present invention is arranged further: the medial wall of described locked groove is provided with chuck, when conical head is placed in locked groove, described card Platform is interlocked with draw-in groove.
The present invention is arranged further: described putter body is provided with broken part.
The present invention is arranged further: described press section is provided with limited block, and described push rod is to during injection tube pressing, described Limited block can be inconsistent with the end of injection tube.
The present invention is arranged further: described needle stand is provided with spliced eye, and described grafting in the hole is provided with sealing ring, when slotting on needle stand When being connected to retraction part, described sealing ring compresses retraction part.
The invention has the advantages that: when needle stand is placed in installation groove portion, the conical head of described retraction part is put through intercommunicating pore In solution cavity, described Access Division and draw-in groove are interlocked, and now needle tubing is arranged on one end of injection tube, and push rod can drive glue Plug moves in the solution cavity of injection tube, is injected, when the pushing part of push rod is depressed into the solution cavity bottom of injection tube, Described release boss can press Access Division, so that clamping block is separated with draw-in groove, and conical head is fixed in locked groove, pulls back again During push rod, push rod can drive retraction part and the needle tubing of retraction part to be retracted in the solution cavity of injection tube, when the present invention uses Do not change traditional operating habit, easy-to-use, reliable effect completely, while injection completes, needle tubing remains to the injection tube that bounces back In solution cavity it is ensured that medical personnel avoid the unexpected injury suffering from polluting needle point, it is to avoid medical personnel are because of needle stick injury Catch.
Brief description
Fig. 1 is a kind of structural representation of safety injector of the present invention;
Fig. 2 is a kind of explosive view of safety injector of the present invention;
Fig. 3 is the structural representation of retraction part;
Fig. 4 is the structural representation of push rod;
Fig. 5 is the structural representation one of injection tube;
Fig. 6 is the structural representation two of injection tube;
Fig. 7 is the structural representation of needle stand.
Description of reference numerals: 1, injection tube;11st, groove portion is installed;12nd, intercommunicating pore;13rd, Access Division;131st, clamping block;14、 Solution cavity;2nd, push rod;21st, putter body;22nd, pushing part;23rd, press section;24th, limited block;25th, release boss;251st, lock Groove;252nd, chuck;26th, broken part;3rd, needle tubing;4th, needle stand;41st, spliced eye;5th, plug;6th, retraction part;61st, conical head;62nd, block Groove.
Specific embodiment
To the present invention, a kind of safety injector is described in further details 1 to Fig. 7 referring to the drawings.
A kind of safety injector, including the injection tube 1 with plug 5, push rod 2, needle tubing 3 and needle stand 4, described push rod 2 wraps Include the putter body 21 being wholely set, pushing part 22 and press section 23, described press section 23 is placed in outside injection tube 1, presses described Splenium 23 is provided with limited block 24, and, to during injection tube 1 pressing, described limited block 24 can be with the end of injection tube 1 for described push rod 2 It is inconsistent that so that push rod 2 presses process into injection tube 1, limited block 24 can limit push rod 2 and be excessively entering in injection tube 1, Described pushing part 22 is connected with plug 5 and is placed in injection tube 1, is plugged with retraction part 6 on needle stand 4, is provided with described needle stand 4 Spliced eye 41, is provided with sealing ring in described spliced eye 41, and when being plugged with retraction part 6 on needle stand 4, described sealing ring compression is retracted Part 6, it is to avoid during injection, reveals, and this movable connected mode is so that retraction part and needle stand 4 can be with relative movements simultaneously.
Described needle tubing 3 is fixed on the one end of retraction part 6, and the other end of described retraction part 6 is provided with conical head 61, its Middle needle tubing 3 with open up injection canal on retraction part 6 and be connected;It is provided with draw-in groove 62, draw-in groove between described conical head 61 and retraction part 6 62 is annular groove;
The one end of described injection tube 1 is provided with installation groove portion 11, and the described bottom installing groove portion 11 is provided with and injection tube 1 The intercommunicating pore 12 that solution cavity is connected, the wherein said medial wall installing groove portion 11 is provided with screw thread, described needle stand 4 and mounting groove Portion 11 is threaded so that needle stand 4 and injection tube 1 are realized detachably, when needle stand 4 is arranged on installation groove portion 11 simultaneously, is plugged on The conical head 61 of the retraction part on needle stand 4 can be placed in solution cavity 14 through intercommunicating pore 12.
The bottom of described solution cavity 14 is provided with Access Division 13, and described Access Division 13 is made up of several clamping blocks 131, Around intercommunicating pore 12 circumferentially-spaced, the free end of described clamping block 131 slopes inwardly and is provided with tiltedly described clamping block 131 Face, when needle stand 4 is placed in installation groove portion 11, the conical head 61 of described retraction part 6 is placed in solution cavity 14 through intercommunicating pore 12 Interior, now the free end of described clamping block 131 is fastened on draw-in groove 62 so that retraction part 6 is fixed on one end of injection tube 1, Needle tubing 3, injection canal, solution cavity 14 are interconnected simultaneously, can complete to take liquid or injection;
Release boss 25 is provided with pushing part 22, described release boss 25 is provided with locked groove 251, when push rod 2 is mobile extremely molten During the bottom in liquid air chamber 14, when the bottom of push rod 2 movement to solution cavity 14, described release boss 25 can press clamping block 131 inclined-plane, is made the free end of clamping block 131 be displaced outwardly being separated with draw-in groove 62, and conical head 61 is fixed on locked groove 251 Interior, pull back again push rod 2 when, push rod 2 can drive retraction part and the needle tubing 3 of retraction part to be retracted into the solution cavity of injection tube 1 So that needle tubing 3 is after the completion of a shot in 14, needle tubing 3 can be retracted into injection tube 1 with retraction part in push rod 2 about In solution cavity 14, simultaneously in syringe core rod middle and lower part position design broken part 26 so that injection needle retraction part 6 is retracted into injection After in cylinder 1, broken push rod 2, to prevent syringe waste product long and also to avoid retraction part to stretch out again.
So that conical head 61 fixedly secures in locked groove 251, it is provided with chuck 252 in the medial wall of described locked groove 251, When conical head 61 is placed in locked groove 251, described chuck 252 and draw-in groove 62 are interlocked.
Operation principle:
When molten medicine uses, needle tubing 3 is immersed medicinal liquid, pull push rod 2 to drive plug 5, because in the injection cavity of injection tube 1 Produce negative pressure, and make medicinal liquid enter injection cavity inside, needle tubing 3 is stretched in medicinal liquid to be dissolved, directly pressing push rod 2 drives Plug 5 so that injection tube 1 injection cavity in medicinal liquid withstanding pressure and discharge from needle tubing 3;When under the pushing part 22 of push rod 2 Be pressed onto injection tube 1 solution cavity 14 bottom when, described release boss 25 can press Access Division 13, makes clamping block 131 and draw-in groove 62 are separated, and conical head 61 is fixed in locked groove 251, pull back again push rod 2 when, push rod 2 can drive retraction part and return The needle tubing 3 of contracting part is retracted in the solution cavity 14 of injection tube 1, and the present invention does not change traditional operating habit when using completely, Easy-to-use, reliable effect, injection while complete needle tubing 3 remain to bounce back injection tube 1 solution cavity 14 in it is ensured that medical care people Member avoids suffering from polluting the unexpected injury of needle point, it is to avoid medical personnel catch because of needle stick injury.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement Example, all technical schemes belonging under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications Should be regarded as protection scope of the present invention.

Claims (7)

1. a kind of safety injector, including the injection tube with plug, push rod, needle tubing and needle stand, described push rod includes push rod originally Body, pushing part and press section, described press section is placed in outside injection tube, and described pushing part is connected with plug and is placed in injection tube, It is characterized in that:
Retraction part is plugged with needle stand, described needle tubing is fixed on the one end of retraction part, the other end of described retraction part It is provided with conical head, between described conical head and retraction part, be provided with draw-in groove;
The one end of described injection tube is provided with installation groove portion, and the bottom of described installation groove portion is provided with the solution cavity phase with injection tube The intercommunicating pore of connection, the bottom of described solution cavity is provided with Access Division, when needle stand is placed in installation groove portion, described retraction part Conical head be placed in solution cavity through intercommunicating pore, described Access Division and draw-in groove are interlocked;
Pushing part is provided with release boss, described release boss is provided with locked groove, when the bottom of push rod movement to solution cavity, Described release boss can press Access Division, so that clamping block is separated with draw-in groove, and conical head is fixed in locked groove.
2. a kind of safety injector according to claim 1, is characterized in that: described Access Division is by several clamping block groups Become, around intercommunicating pore circumferentially-spaced, the free end of described clamping block slopes inwardly and is provided with inclined-plane described clamping block, described The free end of clamping block is fastened on draw-in groove, and when the bottom of push rod movement to solution cavity, described release boss can press card Connect the inclined-plane of block, make the free end of clamping block be displaced outwardly being separated with draw-in groove.
3. a kind of safety injector according to claim 1, is characterized in that: the described medial wall installing groove portion is provided with spiral shell Stricture of vagina, described needle stand is threadeded with installing groove portion.
4. a kind of safety injector according to claim 1, is characterized in that: the medial wall of described locked groove is provided with chuck, when When conical head is placed in locked groove, described chuck and draw-in groove are interlocked.
5. a kind of safety injector according to claim 1, is characterized in that: described putter body is provided with broken part.
6. a kind of safety injector according to claim 1, is characterized in that: described press section is provided with limited block, described pushes away , to during injection tube pressing, described limited block can be inconsistent with the end of injection tube for bar.
7. a kind of safety injector according to claim 1, is characterized in that: described needle stand is provided with spliced eye, described grafting In the hole is provided with sealing ring, and when being plugged with retraction part on needle stand, described sealing ring compresses retraction part.
CN201610932310.6A 2016-10-25 2016-10-25 Safe injector Pending CN106345012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610932310.6A CN106345012A (en) 2016-10-25 2016-10-25 Safe injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610932310.6A CN106345012A (en) 2016-10-25 2016-10-25 Safe injector

Publications (1)

Publication Number Publication Date
CN106345012A true CN106345012A (en) 2017-01-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610932310.6A Pending CN106345012A (en) 2016-10-25 2016-10-25 Safe injector

Country Status (1)

Country Link
CN (1) CN106345012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108827892A (en) * 2018-06-21 2018-11-16 芜湖市金马电子信息有限责任公司 A kind of dry analysis device for food safety detection
CN108815639A (en) * 2018-05-08 2018-11-16 河南兴恒医疗用品有限公司 Disposible safety syringe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2829758Y (en) * 2005-07-15 2006-10-25 山东省医疗器械研究所 Disposable manual retrieving safety injector
CN201290969Y (en) * 2008-09-10 2009-08-19 中山火炬开发区元创精密模具加工厂 Self-destroyed safety syringe
CN101690833A (en) * 2009-09-06 2010-04-07 徐昊华 Safety injector with automatically retractable needle
CN101947341A (en) * 2010-09-15 2011-01-19 徐昊华 Disposable safe syringe capable of automatically retract with replaceable needles
CN204655699U (en) * 2015-05-16 2015-09-23 罗松能 Automatic contractile safety syringe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2829758Y (en) * 2005-07-15 2006-10-25 山东省医疗器械研究所 Disposable manual retrieving safety injector
CN201290969Y (en) * 2008-09-10 2009-08-19 中山火炬开发区元创精密模具加工厂 Self-destroyed safety syringe
CN101690833A (en) * 2009-09-06 2010-04-07 徐昊华 Safety injector with automatically retractable needle
CN101947341A (en) * 2010-09-15 2011-01-19 徐昊华 Disposable safe syringe capable of automatically retract with replaceable needles
CN204655699U (en) * 2015-05-16 2015-09-23 罗松能 Automatic contractile safety syringe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815639A (en) * 2018-05-08 2018-11-16 河南兴恒医疗用品有限公司 Disposible safety syringe
CN108827892A (en) * 2018-06-21 2018-11-16 芜湖市金马电子信息有限责任公司 A kind of dry analysis device for food safety detection

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Application publication date: 20170125

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