CN106362246A - Disposable safety syringe - Google Patents
Disposable safety syringe Download PDFInfo
- Publication number
- CN106362246A CN106362246A CN201610848276.4A CN201610848276A CN106362246A CN 106362246 A CN106362246 A CN 106362246A CN 201610848276 A CN201610848276 A CN 201610848276A CN 106362246 A CN106362246 A CN 106362246A
- Authority
- CN
- China
- Prior art keywords
- syringe
- syringe needle
- core bar
- forms
- positioning seat
- 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
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
-
- 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
- A61M5/3129—Syringe barrels
-
- 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
-
- 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
- A61M5/32—Needles; 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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
-
- 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
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
-
- 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
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
- A61M2005/5073—Means for preventing re-use by disconnection of piston and piston-rod by breaking or rupturing the connection parts
-
- 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
- A61M2205/27—General characteristics of the apparatus preventing use
- A61M2205/273—General characteristics of the apparatus preventing use preventing reuse, e.g. of disposables
Abstract
The invention discloses a disposable safety syringe. A flange is formed at the lower end of a cylinder, a conical annular platform is formed at the upper end of the cylinder, a conical syringe needle locating seat is connected to the interior of the annular platform in an inserting manner, a clamping groove is formed on the outer wall of the lower end of the syringe needle locating seat, a clamping ring is connected to the interior of the clamping groove of the syringe needle locating seat in an inserted manner, the clamping ring is formed on the inner wall of the cylinder, a seal sleeve is fixed at the upper end of the syringe needle locating seat in an inserting and sleeving manner and presses against the inner wall of the annular platform, a cylindrical guide head is formed on the upper end face of the syringe needle locating seat, the guide head passes through the annular platform and is connected and fixed with a syringe needle in an inserting manner, a spline groove is formed in the outer wall of the guide head, a spline matched with the spline groove is formed on the annular platform, a bottom threaded hole is formed in the lower end face of the syringe needle locating seat, and a through hole communicated with the syringe needle is formed in the bottom surface of the bottom thread hole. A limit disc is arranged at the tail end of the syringe cylinder to limit a rubber plug in the cylinder from going out, and a core pin is broken through a mode of bending off or twisting off the two parts, so that the syringe is scrapped conveniently.
Description
Technical field:
The present invention relates to the technical field of medical apparatus and instruments, more specifically to disposable safety injector.
Background technology:
Syringe, generally primary production, become danger after the pathogen with use can be stained with medicine or patient later
Dangerous article, thus the place such as hospital can be destroyed to avoid flowing out in use later in time reuse；Thus market occurs in that
It is easy to the self-destruction syringe destroying, common self-destruction syringe molding grooving on its core bar, be easy to for core bar to pull out one
Section, then hand-held syringe and core bar, core bar is fractureed, but the length needing control dynamics when fractureing and controlling core bar pull-out,
Sometimes snap-off process overexerts and the plug of core bar head can be led to depart from syringe, pollutes.
Content of the invention:
The purpose of the present invention is aiming at the deficiency of prior art, and provides disposable safety injector, and it can be kept away
Exempt from plug in core bar snap-off process and depart from syringe.
For achieving the above object, the technical solution used in the present invention is as follows:
Disposable safety injector, including syringe, the lower end of syringe forms flange, and the upper end of syringe forms circular cone
The land of shape, is plugged with the syringe needle positioning seat of cone, the outer wall of syringe needle positioning seat lower end forms draw-in groove, syringe needle in land
It is plugged with snap ring, snap ring is molded on the inwall of syringe, the upper end sleeve of described syringe needle positioning seat is fixed in the draw-in groove of positioning seat
There is sealing shroud, sealing shroud is pressed against on the inwall of land, the upper surface of syringe needle positioning seat forms the guide head of cylinder, guiding
Head is fixed with syringe needle through land grafting, and the outer wall of guide head is formed spline, land forms and is matched with spline
Spline；Bottom thread hole is formed on the lower surface of syringe needle positioning seat, the bottom surface in bottom thread hole forms and syringe needle phase
The through hole of connection.
It is plugged with the core bar that section is in " ten " font, the upper end of core bar forms union joint, union joint in described syringe
Upper sleeve is fixed with plug, and the upper surface of union joint forms vertical pillar, and the upper end of pillar has and pin through capsule forming
The external screw thread that head positioning seat upper bottom portion corresponding threaded holes close；Paste on the flange of described syringe and be fixed with position-arresting disk, position-arresting disk
Boss is formed on lower surface, the center of boss is formed circular vias, the side wall of circular vias forms and is matched with core bar
The locating slot closing, the lower end of core bar is in have the pole reduced, and the lower end of pole passes through the circular vias of position-arresting disk to form disk
The hand push portion of shape, core bar closes on and forms grooving on the body of rod of union joint.
The length of described core bar is more than the length of syringe.
The diameter of described core bar left-hand seat pushed section is less than the diameter of circular vias on position-arresting disk.
Several locating dowels are formed on described position-arresting disk, locating dowel is ringwise uniformly distributed around position-arresting disk central axis
And be plugged on the flange of syringe.
Locating slot on described position-arresting disk is provided with four, and the width of locating slot is more than the thickness of core bar " ten " the font body of rod.
The beneficial effects of the present invention is:
1st, its structure is simple, arranges position-arresting disk in injector syringe tail end, and the plug limiting in syringe is gone out, and can adopt
Fracture or twist into two parts two side's modes and realize destroying core bar, conveniently syringe is scrapped.
2nd, the injector syringe that it adopts can be fractureed before core bar effectively by the syringe needle of syringe using thread connecting mode again
It is received in syringe, it is to avoid recovery personnel suffer from secondary injury.
3rd, the syringe needle that it adopts promotes syringe needle can be received in syringe under state, then can save the guarantor of syringe needle
Helmet set, saves manufacturing cost.
Brief description:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the close-up schematic view at syringe needle positioning seat of the present invention；
Fig. 3 is the schematic top plan view of syringe head of the present invention；
Fig. 4 is the elevational schematic view at pin position-arresting disk of the present invention.
In figure: 1, syringe；11st, flange；12nd, land；13rd, snap ring；2nd, core bar；21st, union joint；211st, pillar；22nd, prop up
Bar；23rd, hand push portion；24th, grooving；3rd, plug；4th, syringe needle positioning seat；41st, guide head；42nd, bottom thread hole；43rd, through hole；5th, pin
Head；6th, sealing shroud；7th, position-arresting disk；71st, boss；711st, circular vias；712nd, locating slot；72nd, locating dowel.
Specific embodiment:
Embodiment: as shown in Fig. 1 to 4, disposable safety injector, including syringe 1, the lower end of syringe 1 forms method
Blue 11, the upper end of syringe 1 forms the land 12 of cone, is plugged with the syringe needle positioning seat 4 of cone, syringe needle is fixed in land 12
Form draw-in groove on the outer wall of position seat 4 lower end, be plugged with snap ring 13 in the draw-in groove of syringe needle positioning seat 4, snap ring 13 is molded over syringe 1
Inwall on, the upper end sleeve of described syringe needle positioning seat 4 is fixed with sealing shroud 6, and sealing shroud 6 is pressed against on the inwall of land 12,
The upper surface of syringe needle positioning seat 4 forms the guide head 41 of cylinder, and guide head 41 is fixed with syringe needle 5 through land 12 grafting,
The outer wall of guide head 41 forms spline 411, and land 12 is formed the spline 121 being matched with spline 411；Syringe needle is fixed
Form bottom thread hole 42 on the lower surface of position seat 4, the bottom surface in bottom thread hole 42 is formed be connected with syringe needle 5 logical
Hole 43；
It is plugged with the core bar 2 that section is in " ten " font, the upper end of core bar 2 forms union joint 21, even in described syringe 1
Joint 21 upper sleeve is fixed with plug 3, and the upper surface of union joint 21 forms vertical pillar 211, and the upper end of pillar 211 passes through
Plug 3 forms the external screw thread matching with syringe needle positioning seat 4 upper bottom portion screwed hole 42；Paste on the flange 11 of described syringe 1
It is fixed with position-arresting disk 7, the lower surface of position-arresting disk 7 forms boss 71, the center of boss 71 forms circular vias 711, circle
The locating slot 712 being matched with core bar 2 is formed on the side wall of shape via 711, the lower end of core bar 2 is in have the pole 22 reduced,
The lower end of pole 22 passes through the circular vias 711 of position-arresting disk 7 to form discoidal hand push portion 23, and core bar 2 closes on union joint 21
The body of rod on form grooving 24.
The length of described core bar 2 is more than the length of syringe 1.
The diameter of described core bar 2 left-hand seat pushed section 23 is less than the diameter of circular vias 711 on position-arresting disk 7.
Several locating dowels 72 are formed on described position-arresting disk 7, locating dowel 72 is ringwise equal around position-arresting disk 7 central axis
Even it is distributed and is plugged on the flange 11 of syringe 1.
Locating slot 712 on described position-arresting disk 7 is provided with four, and the width of locating slot 712 is more than core bar 2 " ten " the font body of rod
Thickness.
Operation principle: the present invention is syringe, under original state, can syringe needle positioning seat 4 be spirally connected with the pillar 211 of core bar 2
Together, syringe needle positioning seat 4 and syringe needle 5 are plugged in syringe 1, core bar 2 can be rotated simultaneously, make the grooving 24 on core bar 2
It is stuck in the position of position-arresting disk 7 no locating slot 712, limit core bar 2 and move axially；
During use, the locating slot 712 that is rotatably assorted core bar 22 on position-arresting disk 7 simultaneously shifts core bar 22 onto bottom, realizes syringe needle
Positioning seat 4 holding, on the snap ring 3 of syringe 1, is then rotated core bar 22 and realizes pillar 211 and departed from syringe needle positioning seat 4, and realize
The body of rod on core bar 22 is matched with the locating slot 712 on position-arresting disk 7, can achieve normal use；
When scrapping, rotation core bar 22 is again realized pillar 211 and is spirally connected with syringe needle positioning seat 4, then by syringe needle positioning seat 44
No matter pull-out snap ring 3, and forgets about it bottom, so that core bar 22 body of rod of grooving 24 upside is plugged in the locating slot 712 of position-arresting disk 7, then
Rotate core bar 22 twist off core bar 22 still fracture core bar 22 all will not realize plug 3 depart from syringe 1.
Claims (6)
1. disposable safety injector, including syringe (1), the lower end of syringe (1) forms flange (11), syringe (1) upper
End form cone land (12) it is characterised in that: be plugged with land (12) cone syringe needle positioning seat (4), pin
Form draw-in groove on the outer wall of head positioning seat (4) lower end, in the draw-in groove of syringe needle positioning seat (4), be plugged with snap ring (13), snap ring
(13) it is molded on the inwall of syringe (1), the upper end sleeve of described syringe needle positioning seat (4) is fixed with sealing shroud (6), sealing shroud
(6) it is pressed against on the inwall of land (12), the upper surface of syringe needle positioning seat (4) forms the guide head (41) of cylinder, guiding
Head (41) is fixed with syringe needle (5) through land (12) grafting, and the outer wall of guide head (41) forms spline (411), land
(12) form the spline (121) matching with spline (411) on；Bottom is formed on the lower surface of syringe needle positioning seat (4)
Screwed hole (42), the bottom surface of bottom thread hole (42) is formed the through hole (43) being connected with syringe needle (5).
2. disposable safety injector according to claim 1 it is characterised in that: be plugged with described syringe (1)
Section is in the core bar (2) of " ten " font, and the upper end of core bar (2) forms union joint (21), and union joint (21) upper sleeve is fixed with
Plug (3), the upper surface of union joint (21) forms vertical pillar (211), and the upper end of pillar (211) passes through plug (3) to become
Type has the external screw thread matching with syringe needle positioning seat (4) upper bottom portion screwed hole (42)；The flange (11) of described syringe (1) is upper to be pasted
It is fixed with position-arresting disk (7), the lower surface of position-arresting disk (7) forms boss (71), the center of boss (71) forms circular mistake
Hole (711), the side wall of circular vias (711) is formed the locating slot (712) being matched with core bar (2), the lower end of core bar (2)
In there being the pole (22) reduced, the lower end of pole (22) passes through the circular vias (711) of position-arresting disk (7) to form discoidal handss
Pushed section (23), core bar (2) closes on and forms grooving (24) on the body of rod of union joint (21).
3. disposable safety injector according to claim 1 it is characterised in that: the length of described core bar (2) is more than
The length of syringe (1).
4. disposable safety injector according to claim 1 it is characterised in that: described core bar (2) left-hand seat pushed section
(23) diameter is less than the diameter of the upper circular vias (711) of position-arresting disk (7).
5. disposable safety injector according to claim 1 it is characterised in that: the upper molding of described position-arresting disk (7)
There are several locating dowels (72), locating dowel (72) is ringwise uniformly distributed around position-arresting disk (7) central axis and is plugged on syringe (1)
Flange (11) on.
6. disposable safety injector according to claim 1 it is characterised in that: the positioning on described position-arresting disk (7)
Groove (712) is provided with four, and the width of locating slot (712) is more than the thickness of core bar (2) " ten " the font body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610848276.4A CN106362246A (en) | 2016-09-23 | 2016-09-23 | Disposable safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610848276.4A CN106362246A (en) | 2016-09-23 | 2016-09-23 | Disposable safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106362246A true CN106362246A (en) | 2017-02-01 |
Family
ID=57897373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610848276.4A Pending CN106362246A (en) | 2016-09-23 | 2016-09-23 | Disposable safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106362246A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436596A (en) * | 2018-12-13 | 2019-03-08 | 佛山市三水飞马包装有限公司 | A kind of soy cruet and its application method with metric function |
| WO2021217781A1 (en) * | 2020-04-26 | 2021-11-04 | 安徽宏宇五洲医疗器械股份有限公司 | Self-destructive syringe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453049A (en) * | 2003-05-21 | 2003-11-05 | 江西洪达医疗器械集团有限公司 | Self-destructible safe syringe |
| CN200942228Y (en) * | 2005-03-30 | 2007-09-05 | 邹纯平 | Self-destruction safety syringe |
| US20120191041A1 (en) * | 2011-01-21 | 2012-07-26 | Pullara Salvatore V | Safety syringe |
| CN103446643A (en) * | 2012-08-24 | 2013-12-18 | 江苏亿乐医疗用品有限公司 | Core rod locking-type safety syringe |
-
2016
- 2016-09-23 CN CN201610848276.4A patent/CN106362246A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453049A (en) * | 2003-05-21 | 2003-11-05 | 江西洪达医疗器械集团有限公司 | Self-destructible safe syringe |
| CN200942228Y (en) * | 2005-03-30 | 2007-09-05 | 邹纯平 | Self-destruction safety syringe |
| US20120191041A1 (en) * | 2011-01-21 | 2012-07-26 | Pullara Salvatore V | Safety syringe |
| CN103446643A (en) * | 2012-08-24 | 2013-12-18 | 江苏亿乐医疗用品有限公司 | Core rod locking-type safety syringe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436596A (en) * | 2018-12-13 | 2019-03-08 | 佛山市三水飞马包装有限公司 | A kind of soy cruet and its application method with metric function |
| WO2021217781A1 (en) * | 2020-04-26 | 2021-11-04 | 安徽宏宇五洲医疗器械股份有限公司 | Self-destructive syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170201 |
|
| RJ01 | Rejection of invention patent application after publication |