CN105413017B - Disposable, self-destroying syringe - Google Patents
Disposable, self-destroying syringe Download PDFInfo
- Publication number
- CN105413017B CN105413017B CN201511010546.6A CN201511010546A CN105413017B CN 105413017 B CN105413017 B CN 105413017B CN 201511010546 A CN201511010546 A CN 201511010546A CN 105413017 B CN105413017 B CN 105413017B
- Authority
- CN
- China
- Prior art keywords
- syringe
- bar
- push rod
- cutting ferrule
- needle stand
- 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
-
- 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
-
- 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
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking 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
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
- A61M2005/5033—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston by use of an intermediate blocking member positioned between the syringe barrel and the piston rod to prevent retraction of the latter, e.g. toothed clip placed on the 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/19—Constructional features of carpules, syringes or blisters
-
- 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
-
- 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
- A61M2205/276—General characteristics of the apparatus preventing use preventing unwanted use
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (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 present invention discloses Disposable, self-destroying syringe, which included push rod, bar of pulling back, syringe, cutting ferrule, sealing ring, needle stand, piston, injection needle.There is inner face in syringe one end, and groove is equipped in syringe, and syringe is equipped with needle stand and push rod, needle stand is equipped with injection needle, and needle stand rear portion is equipped with sealing ring and cutting ferrule, and cutting ferrule is equipped with circle Tu Zhu compatible with groove, one end of push rod is push end face, the other end is equipped with piston, push rod 1 be it is hollow, bar 2 of pulling back is mounted on inside the cavity of push rod, bar of pulling back is longer than push rod, return pin front is equipped with taper shoulder, and taper shoulder is adapted with cutting ferrule, and the rear portion of return pin is push face.The present invention has the advantages that the design is not necessarily to needle guard sleeve, syringe itself plays a part of to protect injection needle, therefore avoids a possibility that being wounded by stabbing when routine pulls out needle guard；Due to cutting ferrule with bar effect of pulling back be it is gapless stuck, so as to avoid having the phenomenon that blood back after having injected.
Description
Technical field
The present invention relates to syringes, especially Disposable, self-destroying syringe.
Background technique
When carrying out intramuscular injection to patient at present, disposable syringe is widely used, in this way to preventing patient from intersecting
Infection play the role of actively this, but make during practice since medical worker does not destroy in time after use
Criminal carries out simple process after recycling and flows to market again, to bring security risk.Common Disposable, self-destroying
Syringe need in use medical worker carry out peace needle remove safety shield again so that syringe compares in use
It is cumbersome, most importantly increase the risk that medical worker is wounded by stabbing.
Summary of the invention
The purpose of the present invention is to provide a kind of Disposable, self-destroying syringe, which is able to achieve self-destruction, drop after
Low medical worker, which is wounded by stabbing, leads to the risk of infection.
The technical solution of the present invention is as follows: Disposable, self-destroying syringe, which included push rod, bar of pulling back, syringe, card
Set, sealing ring, needle stand, piston, injection needle.There is inner face in syringe one end, and groove is equipped in syringe, and syringe is equipped with needle stand, needle stand
It is equipped with injection needle, needle stand rear portion is equipped with sealing ring and cutting ferrule, and cutting ferrule is equipped with circle Tu Zhu compatible with groove, push rod
One end is push end face, and the other end is equipped with piston, push rod 1 be it is hollow, bar 2 of pulling back is mounted on inside the cavity of push rod, is pulled back
Bar is longer than push rod, and return pin front is equipped with taper shoulder, and taper shoulder is adapted with cutting ferrule, and the rear portion of return pin is push face.
The present invention has the advantages that due to injection needle, needle stand, sealing ring, bar of pulling back is pre-assembled is placed in syringe
Face reduces medical worker in this way and installs injection needle while removing the process of needle guard sleeve；The design is not necessarily to needle guard sleeve, syringe itself
Play a part of to protect injection needle, therefore avoids a possibility that being wounded by stabbing when routine pulls out needle guard；Due to cutting ferrule and bar effect of pulling back
Be it is gapless stuck, so as to avoid having the phenomenon that blood back after having injected.
Detailed description of the invention
Fig. 1 is the pusher structure schematic diagram of Disposable, self-destroying syringe of the present invention；
Fig. 2 is time drawbar structure diagram of Disposable, self-destroying syringe of the present invention；
Fig. 3 is the syringe cylinder structure schematic diagram of Disposable, self-destroying syringe of the present invention；
Fig. 4 is the ferrule structure schematic diagram of Disposable, self-destroying syringe of the present invention；
Fig. 5 is the ring structure schematic diagram of Disposable, self-destroying syringe of the present invention；
Fig. 6 is the sealing ring sectional view of Disposable, self-destroying syringe of the present invention；
Fig. 7 is the needle stand structure schematic diagram of Disposable, self-destroying syringe of the present invention；
Fig. 8 is the needle stand sectional view of Disposable, self-destroying syringe of the present invention；
Fig. 9 is the piston structure schematic diagram of Disposable, self-destroying syringe of the present invention；
Figure 10 is needle stand, sealing ring, the cutting ferrule constitutional diagram of Disposable, self-destroying syringe of the present invention；
Figure 11 is that the bar of pulling back of Disposable, self-destroying syringe of the present invention blocks schematic diagram by cutting ferrule；
Figure 12 is that the bar of pulling back of Disposable, self-destroying syringe of the present invention blocks partial enlarged view by cutting ferrule；
Figure 13 is Disposable, self-destroying syringe construction schematic diagram of the present invention；
Figure 14 is the Disposable, self-destroying syringe workflow first step of the present invention；
Figure 15 is Disposable, self-destroying syringe workflow second step of the present invention；
Figure 16 is Disposable, self-destroying syringe workflow third step of the present invention；
Figure 17 is the 4th step of Disposable, self-destroying syringe workflow of the present invention；
Figure 18 is the 5th step of Disposable, self-destroying syringe workflow of the present invention.
In figure:
1- push rod, 11- push rod end face, 12- push rod hollow part, 13- piston mounting surface, 2- are pulled back bar, 21- push face, 22-
Taper shoulder, 3- syringe, 31- groove, 32- inner face, 4- cutting ferrule, 41- latch end face, 42- convex ribs, 43- latch, 44- internal screw thread,
5- sealing ring, 51- seal face, 52- internal screw thread, 6- needle stand, 61- needle stand column, 62- needle stand surface, the upper surface 63-, the outer spiral shell of 64-
Line, the lower end surface 65-, 66- internal screw thread, 7- piston, 71- piston hole.
Specific embodiment
Disposable, self-destroying syringe, the syringe included push rod 1, bar 2 of pulling back, syringe 3, cutting ferrule 4, sealing ring 5, needle stand
6, piston 7, injection needle 8.There is inner face 32 in 3 one end of syringe, and groove 31 is equipped in syringe 3, and syringe 3 is equipped with needle stand 6 and push rod 1,
Injection needle 8 is mounted on needle stand 6, and sealing ring 5 and cutting ferrule 4 are mounted on 6 rear portion of needle stand, and cutting ferrule 4 is equipped with a circle and 31 phase of groove
Adaptation Tu Zhu 42, one end of push rod 1 are push end face 11, and the other end is equipped with piston 7, and push rod 1 is hollow, bar 2 of pulling back peace
Mounted in 12 the inside of cavity of push rod, bar 2 of pulling back is longer than push rod 1, and 2 front of return pin is equipped with taper shoulder 22, taper shoulder 22 and cutting ferrule 4
It is adapted, the rear portion of return pin is push face 21, and the end face 11 of rod end surface of pulling back before no self-destruction 21 and push rod has certain
Distance ensure that when push rod 1 is shifted the assembly of needle stand 6, sealing ring 5, cutting ferrule 4 and injection needle 8 onto cutting ferrule 4 not returning
Pull rod 2 is stuck, and (the push rod end face 11 of push rod 1, the push face for bar 2 of not putting forth effort to pull back is 21).Between cutting ferrule 4, sealing ring 5 and needle stand 6
Entirety is formed by being threadedly engaged connection, which is just placed on position appropriate in syringe before work, guarantees injection needle
Do not have exposed (such as Fig. 1), push rod 1 and syringe 3 are sliding connections, and piston 7 is mounted on the face 13 of push rod, to prevent leak-stopping
Liquid, sealing ring 5 are mounted on needle stand 6 also for preventing leakage.The inner face 32 of syringe 3 plays position-limiting action, limitation needle stand 6
Position, and groove 31 has been fixed function (being adapted with Tu Zhu 42 on cutting ferrule), it by the convex ribs 42 with cutting ferrule combined from
And cutting ferrule 4 is fixed, needle stand 6 is also just secured, because needle stand 6 and cutting ferrule 4, which are connected through a screw thread, forms an entirety.It pulls back bar 2
One end be designed as 22 shape of taper shoulder be in order to after injection with latch 43 act on to achieve the purpose that failure.
1. push rod: push rod be it is hollow, bar of pulling back can be allowed to move freely inside it, piston is placed in its one end, another
End is push plane.
2. bar of pulling back: bar of pulling back be it is cylindrical, length is longer than push rod, and one end be equipped with taper shoulder, the other end be push
Plane.
3. syringe: its design scheme is similar with the syringe of general self-destroyed syringe, is bilateral type, but difference
It is to be provided with small recesses inside syringe one end of the design, plays stability maintenance fixed function.
4. cutting ferrule: the outside of cutting ferrule is equipped with convex ribs, and inside is equipped with screw thread, there is latch inside cutting ferrule, and each latch is independent
Distribution, and a circular hole is formed, the diameter outline in hole is less than the diameter for bar of pulling back.
5. sealing ring: sealing ring be it is hollow, design have internal screw thread.
6. needle stand: needle stand structure can be divide into upper part and lower part, and upper part has needle stand column for placing injection needle, and needle stand
Inner wall is equipped with internal screw thread and is connected with injection needle progress screw thread, and end portion is equipped with external screw thread for placing sealing-plug and cutting ferrule.
Piston: piston is equipped with inner hole, and bar of pulling back can be allowed to move back and forth.
The use of the syringe: the first step, syringe 1 is interior to be equipped with needle stand 6, by push rod 1, the assembly of pull back bar 2 and piston 7
It is mounted on inside syringe 3, including 6 position of needle stand, starts lower step work.Second step, push rod 1 is needle stand 6, injection needle 8, sealing ring
5, the assembly of cutting ferrule 4 shifts the position of 3 end face 32 of syringe onto, and the inner face 32 of syringe is bonded with the upper surface 63 of needle stand, and needle
Cylinder groove position 31 is overlapped with the convex ribs 42 of cutting ferrule, must not pay attention at this time make to pull back bar 2 the entrance of taper shoulder 22 latch 43 inside.
Third step, pulling push rod 1 slowly carry out suction medicine, since the groove 31 of 3 inside of syringe is combined with the convex ribs 42 of cutting ferrule 4 to solid
Cutting ferrule is determined, the latch 43 of cutting ferrule 4 is acted on 2 taper shoulder 22 of bar of pulling back not yet at this time, therefore cutting ferrule 4 and the equal components of needle stand 6
It is maintained at one end of syringe 3.4th step, after sucking medicine, move together push rod 1 with pull back bar 2 empty 3 medicine of syringe in air
After start to inject, as the bar 2 that pull back of injection can be pushed to the putter face 11 made inside push rod 1 and pull back 21 weight of pole face
It closes.It is stuck so that the taper shoulder 22 for bar 2 of pulling back at the end of injection enters inside latch 43, to reach self-destruction effect.
5th step, since the bar 2 that will pull back of cutting ferrule 4 is stuck after injection, when mobile putter 1, injection needle 8, needle stand 6, cutting ferrule 4,
The assembly of sealing ring 5 can be pulled back to inside syringe.The bar 2 that will pull back after having worked fractures with push rod 1, retains rest part
Inside syringe, in order to avoid it is needled wound.
Claims (2)
1. a kind of Disposable, self-destroying syringe, it is characterised in that: the syringe included push rod (1), bar of pulling back (2), syringe
(3), cutting ferrule (4), sealing ring (5), needle stand (6), piston (7), injection needle (8)；There are inner face (32), syringe in syringe (3) one end
(3) groove (31) are equipped in, syringe (3) is equipped with needle stand (6) and push rod (1), and injection needle (8) is mounted on needle stand (6), needle stand
(6) rear portion is equipped with sealing ring (5) and cutting ferrule (4), and cutting ferrule (4) is equipped with a circle and groove (31) compatible Tu Zhu (42), pushes away
One end of bar (1) be push end face (11), the other end be equipped with piston (7), push rod (1) be it is hollow, bar of pulling back (2), which is mounted on, to be pushed away
Inside the cavity (12) of bar, bar of pulling back (2) is longer than push rod (1), and return pin (2) front is equipped with taper shoulder (22), taper shoulder (22)
It is adapted with cutting ferrule (4), the rear portion for bar of pulling back is push face (21).
2. Disposable, self-destroying syringe according to claim 1, it is characterised in that: the application method of the syringe: first
Step, syringe (1) is interior to be equipped with needle stand (6), and push rod (1), bar of pulling back (2) are mounted on inside syringe (3), starts lower step work；The
Two steps, push rod (1) shift needle stand (6) onto the position of syringe (3) end face (32), the upper surface of inner face (32) and needle stand of syringe
(63) it is bonded, and the convex ribs (42) of cutting ferrule are embedded in syringe groove position (31)；Third step, pulling push rod (1) slowly are inhaled
Medicine, needle stand (6) are maintained at one end of syringe (3)；4th step after sucking medicine, moves together push rod (1) and bar (2) row that pulls back
Start to inject after air in net syringe (3) medicine, make as the bar (2) that pull back of injection can be pushed to inside push rod (1)
Putter face (11) be overlapped with pole face of pulling back (21) so that injection at the end of pull back bar (2) taper shoulder (22) enter latch
(43) the inside is stuck, to reach self-destruction effect；5th step, after injection due to cutting ferrule (4) will pull back bar (2) card
Extremely, therefore when mobile putter (1), injection needle (8), needle stand (6), cutting ferrule (4), sealing ring (5) assembly can be pulled back to needle
Cylinder the inside, the bar (2) that will pull back after having worked fracture with push rod (1), retain rest part inside syringe, in order to avoid be needled
Wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010546.6A CN105413017B (en) | 2015-12-30 | 2015-12-30 | Disposable, self-destroying syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010546.6A CN105413017B (en) | 2015-12-30 | 2015-12-30 | Disposable, self-destroying syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105413017A CN105413017A (en) | 2016-03-23 |
| CN105413017B true CN105413017B (en) | 2018-12-28 |
Family
ID=55491843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511010546.6A Expired - Fee Related CN105413017B (en) | 2015-12-30 | 2015-12-30 | Disposable, self-destroying syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413017B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106620968A (en) * | 2016-11-08 | 2017-05-10 | 沈挺 | Safe self-destruction syringe |
| CN113181481A (en) * | 2021-04-30 | 2021-07-30 | 鹰潭荣嘉集团医疗器械实业有限公司 | Disposable self-destruction syringe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244811A (en) * | 1996-11-15 | 2000-02-16 | 阿登文泰克公司 | Syringe with retractable needle assembly |
| CN1421248A (en) * | 2001-11-28 | 2003-06-04 | 萨克哈拉姆D.马赫卡 | Disposible safety syringe with improved retractable needle |
| CN2640489Y (en) * | 2003-09-12 | 2004-09-15 | 山东淄博山川医用器材有限公司 | Disposable safety self-destroying syringe |
| CN101088570A (en) * | 2006-06-13 | 2007-12-19 | 许明正 | Disposable injector |
| US20080154212A1 (en) * | 2006-12-26 | 2008-06-26 | Stat Medical Devices, Inc. | Syringe with retractable needle support |
| CN205287118U (en) * | 2015-12-30 | 2016-06-08 | 华东交通大学 | Disposable self -destruction injector |
-
2015
- 2015-12-30 CN CN201511010546.6A patent/CN105413017B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244811A (en) * | 1996-11-15 | 2000-02-16 | 阿登文泰克公司 | Syringe with retractable needle assembly |
| CN1421248A (en) * | 2001-11-28 | 2003-06-04 | 萨克哈拉姆D.马赫卡 | Disposible safety syringe with improved retractable needle |
| CN2640489Y (en) * | 2003-09-12 | 2004-09-15 | 山东淄博山川医用器材有限公司 | Disposable safety self-destroying syringe |
| CN101088570A (en) * | 2006-06-13 | 2007-12-19 | 许明正 | Disposable injector |
| US20080154212A1 (en) * | 2006-12-26 | 2008-06-26 | Stat Medical Devices, Inc. | Syringe with retractable needle support |
| CN205287118U (en) * | 2015-12-30 | 2016-06-08 | 华东交通大学 | Disposable self -destruction injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105413017A (en) | 2016-03-23 |
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