CN109646297A - Syringe and its lock piece - Google Patents
Syringe and its lock piece Download PDFInfo
- Publication number
- CN109646297A CN109646297A CN201910054460.5A CN201910054460A CN109646297A CN 109646297 A CN109646297 A CN 109646297A CN 201910054460 A CN201910054460 A CN 201910054460A CN 109646297 A CN109646297 A CN 109646297A
- Authority
- CN
- China
- Prior art keywords
- lock piece
- syringe
- push rod
- handle
- piston push
- 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
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- 238000009434 installation Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 20
- 239000007787 solid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
-
- 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
- A61M5/31501—Means for blocking or restricting the movement of the rod or piston
- A61M5/31505—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit
Landscapes
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Pharmacology & Pharmacy (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The embodiment of the invention discloses a kind of syringe and its lock pieces.This kind of lock piece, for installing on the injector, syringe includes: syringe and piston push rod, syringe tail end is equipped with handle, and lock piece is specifically used for being mounted at handle, and the head end of piston push rod is equipped with piston head, the tail end of piston push rod is equipped with handle, piston push rod is equipped with convex ribs, and convex ribs are equipped with engaging notch, and piston head can be along injecting cavity piston motion；Lock piece is equipped with through-hole, and the internal diameter of through-hole is less than the internal diameter of socket, and lock piece is equipped with the locking notch being connected to through-hole, and locking notch for convex ribs for passing through；The thickness of lock piece is less than or equal to the width of engaging notch, to allow piston push rod to reverse at lock piece by engaging notch.Syringe and its lock piece provided in an embodiment of the present invention can be realized by lock piece and piston push rod prevented to return the technical effect stretched.
Description
Technical field
The present embodiments relate to medical apparatus more particularly to a kind of syringes and its lock piece.
Background technique
Syringe is a kind of common medical instruments.In general, syringe includes: syringe and piston push rod, wherein syringe is set
There is hollow injecting cavity, the head end of syringe is equipped with injection orifice, and injecting cavity is connected to injection orifice, and injecting cavity is in the tail end shape of syringe
At open socket, the tail end of syringe is equipped with handle；The head end of piston push rod is equipped with piston head, and the tail end of piston push rod is equipped with hand
Handle, piston push rod are inserted into the socket of the syringe tail end, make piston head can be along injecting cavity piston motion.In use, syringe needle is socketed
On injection orifice, using the outside pull piston push rod of handle, makes to form negative pressure in injecting cavity, recycle syringe needle to carry out feeding, i.e.,
The liquid or gas being packed into needed for extracting, then resist handle and press handle, so that liquid or gas in injecting cavity is passed through syringe needle
Inject target.
The inventors of the present application found that syringe in the prior art is when extracting, negative pressure can be such that piston push rod occurs back
Phenomenon is stretched, to influence the extraction dosage of syringe, reduces the use accuracy of syringe.
Therefore, how to design one kind to have the syringe for preventing piston push rod time from stretching is that those skilled in the art urgently solve
Certainly the problem of.
Summary of the invention
The purpose of the present invention is to provide a kind of prevention piston push rods to return the syringe and its lock piece stretched.
The present invention provides a kind of lock pieces, and for installing on the injector, the syringe includes: that syringe and piston push away
Bar, the syringe are equipped with hollow injecting cavity, and the head end of the syringe is equipped with injection orifice, and the injecting cavity and the injection orifice connect
It is logical, and the injecting cavity forms open socket in the tail end of the syringe, the tail end of the syringe is equipped with handle, the locking
Part is specifically used for being mounted at the handle, and the head end of the piston push rod is equipped with piston head, and the tail end of the piston push rod is set
There is handle, the piston push rod is equipped with convex ribs, and the convex ribs are equipped with engaging notch, and the piston head can be living along the injecting cavity
Plug movement；
The lock piece is equipped with through-hole, and the internal diameter of the through-hole is less than the internal diameter of the socket, the lock piece be equipped with
The locking notch of the through-hole connection, the locking notch are used to pass through for the convex ribs；
The thickness of the lock piece is less than or equal to the width of the engaging notch, to allow the piston push rod to pass through institute
Engaging notch is stated to reverse at the lock piece.
In a kind of feasible scheme, the lock piece includes: left shell and right shell body；
The left shell is equipped with left half-via, and the right shell body is equipped with right half-via；
The left shell and the right shell body are detachably connected, and the left half-via and the right half-via formed it is described
Through-hole.
In a kind of feasible scheme, the left shell is equipped with pin end, and the right shell body is equipped with female connector, the public access
Head and female connector engaging, are detachably connected the left shell and the right shell body.
In a kind of feasible scheme, the pin end includes: the first grab and the first card slot；
The female connector includes: the second card slot being adapted to first grab, and be adapted to first card slot
Second grab.
In a kind of feasible scheme, the bottom side of the lock piece is equipped with installation card slot, the shape of the installation card slot with
The shape adaptation of the handle, the lock piece are connected on the handle by the installation card slot.
In a kind of feasible scheme, glue note is equipped in the installation card slot, the installation card slot is Nian Jie with the handle.
In a kind of feasible scheme, the lock piece is made of medical grade rubber material or medical grade plastic materials.
In a kind of feasible scheme, the lock piece is integrated with the handle.
The present invention also provides a kind of syringes, comprising: syringe, piston push rod and any one of the above feasible program institute
The lock piece stated；
The lock piece is mounted on the handle of the syringe tail end.
In a kind of feasible scheme, the quantity of the convex ribs is four, and four convex ribs are in the piston push rod
It is upper to be arranged in cross；
The quantity of the locking notch is four, and position is corresponded to each other with the position of four convex ribs.
In a kind of feasible scheme, the quantity of the engaging notch is multiple.
In a kind of feasible scheme, the multiple engaging notch is in be arranged at equal intervals.
In a kind of feasible scheme, the engaging notch is in 60 ° of openings.
In a kind of feasible scheme, syringe further include: plug；
The plug closes the injection orifice for hermetically lid.
In a kind of feasible scheme, the plug is made of medical grade rubber material or medical grade plastic materials.
Syringe and its lock piece provided in an embodiment of the present invention can be realized by lock piece and piston push rod time prevented to stretch
Technical effect.For example, when user is using handle outside pull piston push rod, transport piston head along injecting cavity piston
It is dynamic, meanwhile, the convex ribs on piston push rod are mobile along locking notch, when the engaging notch on convex ribs reaches lock piece, twisting
Piston push rod is shelved on engaging notch on lock piece, and returning for piston push rod can be prevented to stretch.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the exploded perspective figure of the syringe in the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the syringe in the embodiment of the present invention one；
Fig. 3 is the structural schematic diagram of the lock piece in the embodiment of the present invention one；
Fig. 4 is the structural schematic diagram of the piston push rod in the embodiment of the present invention one；
Fig. 5 is the structural schematic diagram of the piston push rod in the embodiment of the present invention two；
Fig. 6 is the three-dimensional structural schematic diagram in the lock piece front in the embodiment of the present invention three；
Fig. 7 is the structural schematic diagram of the lock piece back side solid in the embodiment of the present invention three；
Fig. 8 is the structural schematic diagram of the back side solid of the left shell in the embodiment of the present invention three；
Fig. 9 is the three-dimensional structural schematic diagram in the front of the right shell body in the embodiment of the present invention three；
Figure 10 is the structural schematic diagram of the lock piece in the embodiment of the present invention four；
Figure 11 is the structural schematic diagram of the back side solid of the lock piece in the embodiment of the present invention four；
Marked in the figure:
Syringe 1；
Handle 11；
Socket 12；
Piston push rod 2；
Convex ribs 21；
Engage notch 211；
Lock piece 3；
Through-hole 31；
Locking notch 32；
Plug 4；
Left shell 33；
Right shell body 34；
Left half-via 331；
Right half-via 341；
First grab 3321；
First card slot 3322；
Card slot 35 is installed.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, and be also possible to integral；It can be
Mechanical connection, is also possible to be electrically connected, is also possible to communication connection；It can be and be directly connected to, intermediary can also be passed through
It is indirectly connected with, can be the connection inside two elements or the interaction relationship of two elements, unless otherwise restricted clearly.
For the ordinary skill in the art, can understand as the case may be above-mentioned term in the present invention specifically contain
Justice.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the exploded perspective figure of the syringe in the embodiment of the present invention one, and Fig. 2 is the syringe in the embodiment of the present invention one
Structural schematic diagram, Fig. 3 be the embodiment of the present invention one in lock piece structural schematic diagram, Fig. 4 be the embodiment of the present invention one in
Piston push rod structural schematic diagram.
As shown in Figures 1 to 4, syringe provided in this embodiment, comprising: syringe 1, piston push rod 2 and lock piece 3.
Wherein, syringe 1 is equipped with hollow injecting cavity, and injecting cavity is used to accommodate the liquid or gas extracted, and syringe 1 is by transparent
Material is made, and syringe 1 is equipped with the graduation mark for being used to indicate and extracting dosage at injecting cavity, and the head end of syringe 1 is equipped with injection orifice, note
It penetrates chamber to be connected to injection orifice, and injecting cavity forms open socket 12 in the tail end of syringe 1, which is circular socket, needle
The tail end of cylinder 1 is equipped with handle 11, which is in two valve fin shapes, and is symmetrically disposed in the outside of syringe 1.
Lock piece 3 is flaky, which is mounted at handle 11, which is equipped with through-hole 31, through-hole 31
Internal diameter is less than the internal diameter of socket, and lock piece 3 is equipped with the locking notch 32 being connected to through-hole 31.It is worth noting that lock piece 3 can
It is fixedly mounted at handle 11 by modes such as engaging, stickup, hinged, weldings, connection of the present embodiment to lock piece and handle
Mode does not make any restriction, any to realize being fixedly connected or be detachably connected and falling into the application for lock piece and handle
Protection scope in.
The head end of piston push rod 2 is equipped with piston head, and piston head is cylindrical, to be adapted to injecting cavity, the tail of piston push rod 2
End is equipped with handle, and handle is round handle, and piston push rod 2 is equipped with convex ribs 21, and piston push rod 2 passes through locking notch by convex ribs 21
32, so that piston head can be along injecting cavity piston motion, wherein locking notch 32 can be rectangular notch, half a month v notch v, triangle
V notch v etc., the present embodiment are not limited in any way the shape of locking notch.In addition it is worth noting that, the round handle it is straight
Diameter is less than the diameter of through-hole 31, so that handle is displaced outwardly from through-hole 31.
Meanwhile the convex ribs 21 in the present embodiment are equipped with engaging notch 211, the width of engaging notch 211 is greater than or equal to
The thickness of lock piece 3, to allow piston push rod 2 to reverse at lock piece 3 by engaging notch 211.Engaging notch 211 can be
Rectangular notch, half a month v notch v, triangular gap etc., the present embodiment are not limited in any way the shape of locking notch.
Through the above it is not difficult to find that syringe provided in this embodiment, is realized by lock piece 3 and piston is prevented to push away
Bar 2 returns the technical effect stretched.For example, when user is using handle outside pull piston push rod 2, make piston head along injecting cavity
Piston motion, meanwhile, the convex ribs 21 on piston push rod 2 are mobile along locking notch 32, when the engaging notch 211 on convex ribs 21 arrives
When up to lock piece 3, piston push rod 2 is twisted, makes to engage notch 211 and is shelved on lock piece 3, returning for piston push rod 2 can be prevented
It stretches.
Optionally, in the present embodiment, the quantity of convex ribs 21 is multiple, specifically four, and four convex ribs 21 are in piston
It is arranged on push rod 2 in cross, matched, the quantity of engaging notch 211 is four and is located at same axial position, can also
To say that four engaging notches 211 are located at same circle position, the quantity of locking notch 32 is four, and position and four convex ribs 21
Position corresponds to each other.This kind of structure makes piston push rod 2 not generate twisting in pull, and improves piston push rod 2 and taking out
Stability when drawing.
Optionally, in the present embodiment, syringe further include: plug 4, plug 4 close injection orifice for hermetically lid.It uses
When, can first pull piston push rod recycle plug closed injection hole with the liquid or air of dosage needed for extracting, can make to infuse
Emitter keeps storing state.
It is, moreover, an optional that plug 4 is made of medical grade rubber material or medical grade plastic materials, medical requirement is not only conformed with, also
Improve the sealing effect to injection orifice.
Optionally, in the present embodiment, lock piece 3 is made of medical grade rubber material or medical grade plastic materials, not only can be with
Meet medical demand, due also to the elastic deformability of rubber, alleviates scale error demand when lock piece and handle installation.
Fig. 5 is the structural schematic diagram of the piston push rod in the embodiment of the present invention two, and the embodiment of the present invention is second is that embodiment one
Improvement project, it is improved in that the engaging notch 211 in embodiment one is located at same axial position, and the present embodiment
In, multiple engaging notches 211 in being arranged at equal intervals, and equally spaced setting with the scale at injecting cavity for cooperating, accurately to control
Produce material dosage.
It is, moreover, an optional that engaging notch 211 in the present embodiment is open in 60 °, in order to twist.
Fig. 6 is the three-dimensional structural schematic diagram in the lock piece front in the embodiment of the present invention three, and Fig. 7 is the embodiment of the present invention three
In lock piece back side solid structural schematic diagram, Fig. 8 be the embodiment of the present invention three in left shell back side solid structure
Schematic diagram, Fig. 9 are the three-dimensional structural schematic diagram in the front of the right shell body in the embodiment of the present invention three, and the embodiment of the present invention is third is that reality
The alternative of example one is applied, in example 1, lock piece can be thought as a complete part, and in the present embodiment, lock piece 3
It include: left shell 33 and right shell body 34.
Specifically, left shell 33 is equipped with left half-via 331, and right shell body 34 is equipped with right half-via 341, left shell 33 and the right side
Shell 34 is detachably connected, and left half-via 331 and right half-via 341 form through-hole 31.
Optionally, left shell 33 is equipped with pin end, and right shell body 34 is equipped with female connector, pin end and female connector engaging, makes a left side
Shell 33 and right shell body 34 are detachably connected.
More specifically, pin end includes: the first grab 3321 and the first card slot 3322, and female connector includes: and the first card
The second card slot that hook 3321 is adapted to, and the second grab being adapted to the first card slot 3322.
Optionally, in the present embodiment, the bottom side of lock piece 3 is equipped with installation card slot 35, installs the shape and handle of card slot 35
The shape adaptation of hand 11, lock piece 3 are connected on handle 11 by installing card slot 35.
Optionally, in the present embodiment, it is equipped with glue note in installation card slot 35, installation card slot 35 is Nian Jie with handle 11.
The embodiment of the present invention fourth is that embodiment one alternative, difference place is that the lock piece of embodiment one needs
It is additionally installed on handle, and the lock piece 3 in the present embodiment is integrated with handle 11.It is to be understood that needle
Cylinder is made of the method for injection molding, wherein includes the shape of lock piece in mold used in injection molding, by injection molding
After processing and forming, the integral structure of syringe and lock piece is obtained.
The embodiment of the present invention four provides a kind of lock piece, and example IV is the alternative of embodiment three, and Figure 10 is this
The structural schematic diagram of lock piece in inventive embodiments four, Figure 11 are that the back side of the lock piece in the embodiment of the present invention four is three-dimensional
Structural schematic diagram is, the locking in the present embodiment in place of the present embodiment and the difference of embodiment three as shown in Figure 10 and Figure 11
The bottom side of part is equipped with installation card slot 35, and the installation card slot has circular open, and inner cavity is used to be socketed in the handle of syringe.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that fisrt feature and second feature directly contact or fisrt feature and second feature pass through intermediary mediate contact.
Moreover, fisrt feature can be fisrt feature in second feature above the second feature " above ", " above " and " above "
Directly above or obliquely above, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in second feature " it
Under ", " lower section " and " following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of fisrt feature water
Flat height is lower than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc., it is intended that specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or example of anticipating.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (15)
1. a kind of lock piece, for installing on the injector, which is characterized in that the syringe includes: syringe and piston push rod,
The syringe is equipped with hollow injecting cavity, and the head end of the syringe is equipped with injection orifice, and the injecting cavity is connected to the injection orifice,
And the injecting cavity forms open socket in the tail end of the syringe, the tail end of the syringe is equipped with handle, the lock piece
Specifically for being mounted at the handle, the head end of the piston push rod is equipped with piston head, and the tail end of the piston push rod is equipped with
Handle, the piston push rod are equipped with convex ribs, and the convex ribs are equipped with engaging notch, and the piston head can be along the injecting cavity piston
Movement；
The lock piece is equipped with through-hole, and the internal diameter of the through-hole is less than the internal diameter of the socket, the lock piece be equipped with it is described
The locking notch of through-hole connection, the locking notch are used to pass through for the convex ribs；
The thickness of the lock piece is less than or equal to the width of the engaging notch, to allow the piston push rod to pass through the card
Notch is closed to reverse at the lock piece.
2. lock piece according to claim 1, which is characterized in that the lock piece includes: left shell and right shell body；
The left shell is equipped with left half-via, and the right shell body is equipped with right half-via；
The left shell and the right shell body are detachably connected, and the left half-via and the right half-via form described lead to
Hole.
3. lock piece according to claim 2, which is characterized in that the left shell is equipped with pin end, and the right shell body is set
There are female connector, the pin end and female connector engaging, is detachably connected the left shell and the right shell body.
4. lock piece according to claim 3, which is characterized in that the pin end includes: the first grab and the first card slot；
The female connector includes: the second card slot being adapted to first grab, and second be adapted to first card slot
Grab.
5. lock piece according to claim 1, which is characterized in that the bottom side of the lock piece is equipped with installation card slot, described
The shape of card slot and the shape adaptation of the handle are installed, the lock piece is connected to the handle by the installation card slot
On.
6. lock piece according to claim 5, which is characterized in that be equipped with glue note, the installation card in the installation card slot
Slot is Nian Jie with the handle.
7. lock piece according to claim 1, which is characterized in that the lock piece is by medical grade rubber material or medical plastic
Material is made.
8. lock piece according to claim 1, which is characterized in that the lock piece is integrated with the handle.
9. a kind of syringe characterized by comprising described in any one of syringe, piston push rod and claim 1 to 8
Lock piece；
The lock piece is mounted on the handle of the syringe tail end.
10. syringe according to claim 9, which is characterized in that the quantity of the convex ribs is four, and four described convex
Muscle is arranged on the piston push rod in cross；
The quantity of the locking notch is four, and position is corresponded to each other with the position of four convex ribs.
11. syringe according to claim 9, which is characterized in that the quantity of the engaging notch is multiple.
12. syringe according to claim 11, which is characterized in that the multiple engaging notch is in be arranged at equal intervals.
13. syringe according to claim 9, which is characterized in that the engaging notch is in 60 ° of openings.
14. syringe according to claim 9, which is characterized in that further include: plug；
The plug closes the injection orifice for hermetically lid.
15. syringe according to claim 14, which is characterized in that the plug is medical grade rubber material or medical plastic
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054460.5A CN109646297A (en) | 2019-01-21 | 2019-01-21 | Syringe and its lock piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054460.5A CN109646297A (en) | 2019-01-21 | 2019-01-21 | Syringe and its lock piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109646297A true CN109646297A (en) | 2019-04-19 |
Family
ID=66119261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910054460.5A Pending CN109646297A (en) | 2019-01-21 | 2019-01-21 | Syringe and its lock piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109646297A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960268A (en) * | 2020-01-06 | 2020-04-07 | 西藏新好科技有限公司 | Tissue minimally invasive sampler for livestock |
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| WO2002078773A1 (en) * | 2000-11-06 | 2002-10-10 | Xiping Wang | Self-locking syringe |
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| WO2006119667A1 (en) * | 2005-05-10 | 2006-11-16 | Hsienwen Hsieh | Disposable safety syringe |
| EP2130561A1 (en) * | 2008-06-06 | 2009-12-09 | Aesculap AG | Medical syringe with piston blocking means |
| CN203577077U (en) * | 2013-10-16 | 2014-05-07 | 潘建伟 | Self-locking type self-destroying injector |
| JP2014131764A (en) * | 2014-03-13 | 2014-07-17 | Becton Dickinson France Sas | Injection device preventing return of piston when safety system is deployed |
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