CN110124154B - Vaccine needle - Google Patents
Vaccine needle Download PDFInfo
- Publication number
- CN110124154B CN110124154B CN201910334795.2A CN201910334795A CN110124154B CN 110124154 B CN110124154 B CN 110124154B CN 201910334795 A CN201910334795 A CN 201910334795A CN 110124154 B CN110124154 B CN 110124154B
- Authority
- CN
- China
- Prior art keywords
- piston
- needle
- limiting mechanism
- sliding block
- needle tube
- 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
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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
- A61M5/315—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
-
- 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
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31566—Means improving security or handling thereof
-
- 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
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31566—Means improving security or handling thereof
- A61M5/31571—Means preventing accidental administration
-
- 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
-
- 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3368—Temperature
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The vaccine needle comprises a shell, a needle tube and a pushing assembly, wherein the pushing assembly is positioned in the shell, the needle tube is positioned at the end part of the shell, the pushing assembly comprises a main piston shaft, a limiting mechanism, an auxiliary piston shaft and a piston, the auxiliary piston shaft is connected to the piston, the limiting mechanism is positioned between the main piston shaft and the auxiliary piston shaft and is fixedly connected in the shell, and a through hole matched with the main piston shaft is formed in the limiting mechanism; a thermosensitive assembly and an extrusion assembly are arranged between the shell and the needle tube; compared with the prior art, through setting up limiting mechanism, need just can pass through at the main piston axle after limiting mechanism and main piston axle align, thereby prevent unexpected promotion piston axle and cause the loss of bacterin liquid, and vice piston axle and piston promotion process are irreversible, and the position of vice piston axle and piston can not resume, simultaneously under the effect of temperature sensing subassembly and extrusion subassembly, the clamp to the needle tubing when making the temperature in the bacterin needle surpass preset temperature is tight, prevents that bacterin liquid from flowing out through the needle tubing.
Description
Technical Field
The invention belongs to the technical field of vaccine needles, and particularly relates to a vaccine needle.
Background
The safety problem of the vaccine is always a content of high concern of people, the vaccine needle is a common medical consumable material and is used for injecting the vaccine, the vaccine needle is designed to integrate a vaccine bottle and an injection needle cylinder into a whole, and the vaccine solution can be directly arranged in the needle cylinder of the injector by changing the structure of the needle cylinder.
Because the vaccine is sensitive to temperature, once the temperature exceeds 2 ℃ to 8 ℃, the vaccine is destroyed in each link from the vaccine manufacturing department to the vaccine use site, and in the prior art, the real-time temperature of the vaccine cannot be detected in the use process generally, the over-temperature of the vaccine during vaccine injection can be caused, so that certain potential safety hazard is caused to users; meanwhile, when the vaccine is placed in the vaccine needle, the conventional vaccine needle accidentally pushes the piston shaft, so that the vaccine liquid is lost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a safe and reliable vaccine needle which integrates a vaccine bottle and an injection needle cylinder into a whole.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the vaccine needle comprises a shell, a needle tube and a pushing assembly, wherein the pushing assembly is positioned in the shell, the needle tube is positioned at the end part of the shell, the pushing assembly comprises a main piston shaft, a limiting mechanism, an auxiliary piston shaft and a piston, the auxiliary piston shaft is connected to the piston, the limiting mechanism is positioned between the main piston shaft and the auxiliary piston shaft and is fixedly connected in the shell, and a through hole matched with the main piston shaft is formed in the limiting mechanism; a thermosensitive assembly and an extrusion assembly are arranged between the shell and the needle tube.
As a preferable scheme of the invention, the shell comprises a front shell, a glass shell and a rear shell which are sequentially communicated, the limiting mechanism and the main piston shaft are positioned in the rear shell, the piston and the auxiliary piston shaft are positioned in the glass shell, and the heat-sensitive component and the extrusion component are positioned in the front shell.
As a preferable scheme of the present invention, the rear housing is provided with a finger rest, the finger rest is provided with finger rest marks, the finger rest marks correspond to the positions of the through holes of the limiting mechanism, the main piston shaft is provided with a piston handle, the piston handle is provided with piston handle marks, and the piston handle marks correspond to the finger rest marks.
In a preferred embodiment of the present invention, the centers of the main piston shaft, the limiting mechanism, the sub-piston shaft, and the piston are located on the same line, and the piston faces the needle tube.
As a preferable aspect of the present invention, the heat-sensitive assembly includes a left heat-sensitive expansion body and a right heat-sensitive expansion body, and the pressing assembly includes a left pressing slider and a right pressing slider.
As a preferable aspect of the present invention, the left extrusion slide block is located on the left thermal expansion body, the right extrusion slide block is located on the right thermal expansion body, and the left extrusion slide block and the right extrusion slide block are located between the left thermal expansion body and the right thermal expansion body.
As a preferred scheme of the present invention, the left side extrusion sliding block is connected to a left side spring and a left side thimble, the left side spring is connected to the left side thimble, and the left side thimble is located in the preformed hole of the left side extrusion sliding block.
As a preferred scheme of the present invention, the right extrusion sliding block is connected to a right spring and a right thimble, the right spring is connected to the right thimble, and the right thimble is located in the preformed hole of the right extrusion sliding block.
As a preferable scheme of the invention, the needle tube comprises a soft needle tube and a hard needle tube, and the soft needle tube is communicated with the hard needle tube.
In a preferred embodiment of the present invention, the soft needle tube is located inside the housing, and the hard needle tube extends to the outside of the housing.
Compared with the prior art, the invention has the beneficial effects that: through setting up limiting mechanism, need just can pass through at the main piston axle after limiting mechanism aligns with the main piston axle, thereby prevent unexpected promotion piston axle and cause the loss of bacterin liquid, and vice piston axle and piston promotion process are irreversible, and the position of vice piston axle and piston can not resume, simultaneously under the effect of thermal sensitive component and extrusion subassembly for the clamp of needle tubing when the temperature in the bacterin needle surpasss preset temperature, prevent that bacterin liquid from flowing out through the needle tubing.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic diagram of the operation of the heat sensitive assembly and the compression assembly;
FIG. 4 is a schematic diagram of the operation of the piston and piston shaft;
FIG. 5 is a schematic view of the piston and piston shaft;
reference numbers in the figures: the device comprises a piston handle 1, a piston handle mark 2, a main piston shaft 3, a finger rest mark 4, a finger rest 5, a rear outer sleeve 6, a limiting mechanism 7, a glass shell 8, an auxiliary piston shaft 9, a front shell 10, a piston 11, a left spring 12, a right spring 13, a left thimble 14, a right thimble 15, a left heat-sensitive expansion body 16, a right heat-sensitive expansion body 17, a left extrusion slide block 18, a right extrusion slide block 19, a hard needle tube 20 and a soft needle tube 21.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-5, the vaccine needle comprises a housing, a needle tube, and a pushing assembly, wherein the pushing assembly is located in the housing, the needle tube is located at the end of the housing, the pushing assembly comprises a main piston shaft 3, a limiting mechanism 7, an auxiliary piston shaft 9, and a piston 11, the auxiliary piston shaft 9 is connected to the piston 11, the limiting mechanism 7 is located between the main piston shaft 3 and the auxiliary piston shaft 9, the limiting mechanism 7 is fixedly connected in the housing, and a through hole matched with the main piston shaft 3 is formed in the limiting mechanism 7; a heat-sensitive component and an extrusion component are arranged between the shell and the needle tube.
Through-hole in the limiting mechanism 7 is irregular hole, the size of through-hole is unanimous with main piston shaft 3's size, main piston shaft 3 rotates certain angle and can passes limiting mechanism 7, vice piston shaft 9 is equipped with the cylinder section, the cylinder section is towards main piston shaft 3, be formed with the round hole with cylinder section adaptation in the main piston shaft 3, after main piston shaft 3 rotated certain angle and can pass limiting mechanism 7, the round hole of main piston shaft 3 is linked together with the cylinder section of vice piston shaft 9, make and have better connectivity between main piston shaft 3 and the vice piston shaft 9.
The casing comprises a front casing 10, a glass casing 8 and a rear casing 6 which are sequentially communicated, a limiting mechanism 7 and a main piston shaft 3 are positioned in the rear casing 6, the limiting mechanism 7 is fixedly connected in the rear casing 6, the outer ring of the limiting mechanism 7 is in threaded connection with the rear casing 6, the main piston shaft 3 is movably connected in the rear casing 6, a piston 11 and an auxiliary piston shaft 9 are positioned in the glass casing 8, the auxiliary piston shaft 9 is fixedly connected with a piston 11, the auxiliary piston shaft 9 faces the limiting mechanism 7, the size of the piston 11 is consistent with that of the inner wall of the glass casing 8, the outer ring of the piston 11 is tightly attached to the inner wall of the glass casing 8, vaccine liquid is loaded in the glass casing 8, through the arrangement of the glass casing 8, an operator can conveniently observe the vaccine liquid in a vaccine needle, the vaccine liquid is positioned between the piston 11 and the front casing 10, and the vaccine liquid is conveyed through the pushing of the piston 11, a heat sensitive assembly and a squeezing assembly are located within front housing 10 at the vaccine fluid outlet.
The rear shell 6 is provided with a finger support 5, the finger support 5 is fixed on the rear shell 6, the finger support 5 is of a circular ring structure, the finger support 5 is used for abutting against a finger, an operator can conveniently push the main piston shaft 3, the finger support 5 is provided with a finger support mark 4, the finger support mark 4 corresponds to the through hole position of the limiting mechanism 7, the limiting mechanism 7 and the finger support 5 are both fixedly connected on the rear shell 6, the finger support mark 4 always points to the same direction of the limiting mechanism 7, the main piston shaft 3 is provided with a piston handle 1, the piston handle 1 is provided with a piston handle mark 2, and the piston handle mark 2 corresponds to the finger support mark 4.
When the piston handle mark 2 and the finger rest mark 4 are arranged, the main piston shaft 3 can pass through the limiting mechanism 7, so that the main piston shaft 3 can pass through the limiting mechanism 7 to be in contact with the auxiliary piston shaft 9, the main piston shaft 3 pushes the piston 11, and only when the piston handle mark 2 corresponds to the finger rest mark 4, the main piston shaft 3 can pass through the limiting mechanism 7, so that the vaccine liquid in the glass shell 8 is prevented from being leaked accidentally, and the piston handle mark 2 and the finger rest mark 4 are convenient for an operator to operate the vaccine needle.
The centers of the main piston shaft 3, the limiting mechanism 7, the auxiliary piston shaft 9 and the piston 11 are positioned on the same straight line, so that the connection among the main piston shaft 3, the limiting mechanism 7, the auxiliary piston shaft 9 and the piston 11 has better stability, and the piston 11 faces the needle tube.
In the in-service use process, need rotate certain angle with piston handle 1 before the bacterin needle uses for piston handle mark 2 aligns with finger support mark 4, the angle that piston handle 1 pivoted is exactly the angle that main piston axle 3 rotated, the cross-section of main piston axle 3 is unanimous with the through-hole cross-section of limiting mechanism 7 this moment, let main piston axle 3 can pass through, thereby main piston axle 3 promotes vice piston axle 9, vice piston axle 9 promotes piston 11 again, piston 11 promotes the bacterin liquid entering needle tubing outflow in the glass shell 8.
The main piston shaft 3 can realize pushing the piston 11 by pushing the auxiliary piston shaft 9, so that the vaccine liquid flows out through the needle tube, and when the main piston shaft 3 is pulled back, the main piston shaft 3 does not drive the auxiliary piston shaft 9 and the piston 11 to move, so that the needle tube is an unrecoverable disposable product, and the safety of a user is ensured.
The combination of the main piston shaft 3, the limiting mechanism 7 and the auxiliary piston shaft 9 can effectively prevent the vaccine liquid from being wasted due to the fact that the piston 11 is pushed accidentally and prevent the piston 11 from being used again after being pulled up again.
The needle tube comprises a soft needle tube 21 and a hard needle tube 20, the soft needle tube 21 is communicated with the hard needle tube 20, the soft needle tube 21 is positioned in the shell, and the hard needle tube 20 extends out of the shell.
The heat-sensitive component comprises a left heat-sensitive expansion body 16 and a right heat-sensitive expansion body 17, the extrusion component comprises a left extrusion sliding block 18 and a right extrusion sliding block 19, the left extrusion sliding block 18 is positioned on the left heat-sensitive expansion body 16, the right extrusion sliding block 19 is positioned on the right heat-sensitive expansion body 17, and the left extrusion sliding block 18 and the right extrusion sliding block 19 are positioned between the left heat-sensitive expansion body 16 and the right heat-sensitive expansion body 17.
The heat-sensitive temperature of the left heat-sensitive expansion body 16 and the right heat-sensitive expansion body 17 is the highest value of the preset temperature in the vaccine needle, when the temperature in the vaccine needle does not exceed the effective temperature of the vaccine, the left heat-sensitive expansion body 16 and the right heat-sensitive expansion body 17 do not expand, so that the left extrusion slide block 18 and the right extrusion slide block 19 do not move, the vaccine liquid can normally pass through and enter the needle tube, and the vaccine can be normally injected at the moment.
When the temperature exceeds the effective temperature range of the vaccine, the left thermal expansion body 16 and the right thermal expansion body 17 expand, the left thermal expansion body 16 drives the left extrusion slide block 18 to move rightwards, the right thermal expansion body 17 drives the right extrusion slide block 19 to move leftwards, and the left extrusion slide block 18 and the right extrusion slide block 19 compress the soft needle tube 21 and cause blockage, so that the vaccine liquid cannot normally pass through and enter the hard needle tube 20, and the vaccine cannot be injected at the moment.
The left side extrusion sliding block 18 is connected with a left side spring 12 and a left side thimble 14, the left side spring 12 is connected with the left side thimble 14, the left side thimble 14 is positioned in a preformed hole of the left side extrusion sliding block 18, the right side extrusion sliding block 19 is connected with a right side spring 13 and a right side thimble 15, the right side spring 13 is connected with the right side thimble 15, the right side thimble 15 is positioned in the preformed hole of the right side extrusion sliding block 19, the left side spring 12 and the right side spring 13 are positioned in the front shell 10, the bottoms of the left side spring 12 and the right side spring 13 are abutted against the front shell 10, and the left side spring 12 and the right side spring 13 are always in a contracted state.
When the temperature exceeds the effective temperature range of the vaccine, the left spring 12 and the right spring 13 respectively push the left thimble 14 and the right thimble 15 to jack the reserved holes of the left extrusion slide block 18 and the right extrusion slide block 19, so that the movement of the left extrusion slide block 18 and the right extrusion slide block 19 is limited, the soft needle tube 21 is permanently pressed and blocked, and the soft needle tube cannot be reused after the temperature is recovered.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the device comprises a piston handle 1, a piston handle mark 2, a main piston shaft 3, a finger rest mark 4, a finger rest 5, a rear outer sleeve 6, a limiting mechanism 7, a glass shell 8, an auxiliary piston shaft 9, a front shell 10, a piston 11, a left spring 12, a right spring 13, a left thimble 14, a right thimble 15, a left heat-sensitive expansion body 16, a right heat-sensitive expansion body 17, a left extrusion slide block 18, a right extrusion slide block 19, a hard needle tube 20, a soft needle tube 21 and other terms, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (5)
1. Vaccine needle, including casing, needle tubing, propelling movement subassembly is located the casing, and the needle tubing is located the casing tip, its characterized in that, propelling movement subassembly includes main piston axle (3), limiting mechanism (7), vice piston axle (9) and piston (11), and vice piston axle (9) are connected on piston (11), and limiting mechanism (7) are located between main piston axle (3) and vice piston axle (9), and limiting mechanism (7) fixed connection is in the casing, is formed with the through-hole with main piston axle (3) looks adaptation in limiting mechanism (7); a thermosensitive assembly and an extrusion assembly are arranged between the shell and the needle tube; the heat-sensitive component comprises a left heat-sensitive expansion body (16) and a right heat-sensitive expansion body (17), and the extrusion component comprises a left extrusion sliding block (18) and a right extrusion sliding block (19); the left side extrusion sliding block (18) is positioned on the left side thermal expansion body (16), the right side extrusion sliding block (19) is positioned on the right side thermal expansion body (17), and the left side extrusion sliding block (18) and the right side extrusion sliding block (19) are positioned between the left side thermal expansion body (16) and the right side thermal expansion body (17); the left side extrusion sliding block (18) is connected with a left side spring (12) and a left side thimble (14), the left side spring (12) is connected with the left side thimble (14), and the left side thimble (14) is positioned in a reserved hole of the left side extrusion sliding block (18); the right extrusion sliding block (19) is connected with a right spring (13) and a right thimble (15), the right spring (13) is connected with the right thimble (15), and the right thimble (15) is positioned in a reserved hole of the right extrusion sliding block (19); the needle tube comprises a soft needle tube (21) and a hard needle tube (20), and the soft needle tube (21) is communicated with the hard needle tube (20).
2. The vaccine needle according to claim 1, wherein the housing comprises a front housing (10), a glass housing (8) and a rear housing (6) which are in communication in this order, the limiting mechanism (7) and the primary piston shaft (3) are located in the rear housing (6), the piston (11) and the secondary piston shaft (9) are located in the glass housing (8), and the heat sensitive component and the pressing component are located in the front housing (10).
3. The vaccine needle according to claim 2, wherein the rear housing (6) is provided with a finger rest (5), the finger rest (5) is provided with finger rest marks (4), the finger rest marks (4) correspond to the through hole of the limiting mechanism (7), the main piston shaft (3) is provided with a piston handle (1), the piston handle (1) is provided with piston handle marks (2), and the piston handle marks (2) correspond to the finger rest marks (4).
4. Vaccine needle according to claim 1, characterized in that the centers of the primary piston shaft (3), the restriction means (7), the secondary piston shaft (9) and the piston (11) are located on the same line, the piston (11) facing the needle cannula.
5. The vaccine needle according to claim 1, wherein the soft needle tube (21) is located inside the housing and the hard needle tube (20) extends outside the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910334795.2A CN110124154B (en) | 2019-04-24 | 2019-04-24 | Vaccine needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910334795.2A CN110124154B (en) | 2019-04-24 | 2019-04-24 | Vaccine needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110124154A CN110124154A (en) | 2019-08-16 |
| CN110124154B true CN110124154B (en) | 2021-08-03 |
Family
ID=67570965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910334795.2A Expired - Fee Related CN110124154B (en) | 2019-04-24 | 2019-04-24 | Vaccine needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110124154B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5084017A (en) * | 1989-10-10 | 1992-01-28 | John Maffetone | Self disabling, single use, hypodermic syringe |
| US20030088216A1 (en) * | 2001-10-03 | 2003-05-08 | Daniel Py | Syringe and reconstitution syringe |
| CN1419458A (en) * | 2000-03-23 | 2003-05-21 | 安塔雷斯制药公司 | Single use disposable jet syringe |
| CN101522144A (en) * | 2006-10-16 | 2009-09-02 | 爱尔康研究有限公司 | Temperature control device and thermal sensor assembly for medical device |
| CN103533974A (en) * | 2011-05-12 | 2014-01-22 | 欧文蒙福德有限公司 | Injection devices |
| CN106029124A (en) * | 2013-12-19 | 2016-10-12 | 美敦力迷你迈德公司 | On-body injector and method of use |
| CN106470631A (en) * | 2014-11-11 | 2017-03-01 | 奥林巴斯株式会社 | Treatment apparatus and disposal system |
-
2019
- 2019-04-24 CN CN201910334795.2A patent/CN110124154B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5084017A (en) * | 1989-10-10 | 1992-01-28 | John Maffetone | Self disabling, single use, hypodermic syringe |
| CN1419458A (en) * | 2000-03-23 | 2003-05-21 | 安塔雷斯制药公司 | Single use disposable jet syringe |
| US20030088216A1 (en) * | 2001-10-03 | 2003-05-08 | Daniel Py | Syringe and reconstitution syringe |
| CN101522144A (en) * | 2006-10-16 | 2009-09-02 | 爱尔康研究有限公司 | Temperature control device and thermal sensor assembly for medical device |
| CN103533974A (en) * | 2011-05-12 | 2014-01-22 | 欧文蒙福德有限公司 | Injection devices |
| CN106029124A (en) * | 2013-12-19 | 2016-10-12 | 美敦力迷你迈德公司 | On-body injector and method of use |
| CN106470631A (en) * | 2014-11-11 | 2017-03-01 | 奥林巴斯株式会社 | Treatment apparatus and disposal system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110124154A (en) | 2019-08-16 |
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