CN107497018B - Disposable safety injection needle for children - Google Patents
Disposable safety injection needle for children Download PDFInfo
- Publication number
- CN107497018B CN107497018B CN201710905699.XA CN201710905699A CN107497018B CN 107497018 B CN107497018 B CN 107497018B CN 201710905699 A CN201710905699 A CN 201710905699A CN 107497018 B CN107497018 B CN 107497018B
- Authority
- CN
- China
- Prior art keywords
- needle
- sleeve
- sliding
- steel
- sealing column
- 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.)
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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
- A61M5/3129—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
- A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
-
- 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 relates to a disposable safety injection needle for children, which can effectively solve the problems of quick and safe intramuscular injection for children, and adopts the technical scheme that a sliding sleeve fixedly connected with the front end of a needle cylinder is arranged on the outer side of a steel needle, a sliding sealing column which slides forwards and backwards along the length direction of the steel needle is sleeved on the steel needle, a needle storage sleeve fixed with the sliding sealing column is arranged between the sliding sleeve and the steel needle, the front end of the needle storage sleeve extends out of the sliding sleeve, a sleeve fixed with the front end of the needle storage sleeve and extending out of the front end of the needle storage sleeve is connected on the front end surface of the sealing column, the steel needle extends into the inner cavity of the needle storage sleeve and extends into the inner cavity of the sleeve forwards after penetrating through the sealing column, the needle point of the steel needle after injection is positioned in the protection of the sleeve, the occurrence of needle puncture is avoided, the needle is fixed by a positioning cover after the needle insertion, the needle is prevented from, is an innovation on the injector.
Description
Technical Field
The invention relates to an injection needle, in particular to a disposable safety injection needle for children.
Background
In clinical work, when children are injected intramuscularly, because the children do not cooperate with the operation, parents are often required to completely position the children, and the operators can inject the drugs into the children. However, immediately after the injection needle enters the muscle, the child may involuntarily perform such activities as kicking the leg due to sudden pain. This activity can lead to undesirable consequences: 1. the small amplitude of motion may cause the position of the syringe needle in the muscle to change, damaging the muscle tissue and thus aggravating the pain. 2. The large range of motion may cause the needle to be pulled out of the skin, resulting in waste of the liquid medicine, and the operator may have a needle stick injury. 3. The movement is violent and results in the breakage of the syringe needle. Therefore, the improvement and innovation of the child injection needle are imperative.
Disclosure of Invention
In view of the above situation, the present invention aims to provide a disposable safety injection needle for children, which can effectively solve the problem of quick and safe intramuscular injection for children.
The invention solves the technical scheme that a disposable safety injection needle for children comprises a needle cylinder, a piston core rod and a steel needle, wherein the piston end of the piston core rod extends into the inner cavity of the needle cylinder from the opening at the rear end of the needle cylinder, the steel needle is arranged at the front end of the needle cylinder, the inner cavity of the needle cylinder between a liquid inlet of the steel needle and the piston end of the piston core rod forms a negative pressure type sliding stroke cavity, the piston core rod slides forwards and backwards along the length direction of the inner cavity of the needle cylinder to form a compression type injection structure, a sliding sleeve fixedly connected with the front end of the needle cylinder is arranged on the outer side of the steel needle, a sliding sealing column sliding forwards and backwards along the length direction of the steel needle is sleeved on the steel needle, a needle storage sleeve fixed with the sliding sealing column is arranged between the sliding sleeve and the steel needle, the front end of the needle storage sleeve extends out of the sliding sleeve, a sleeve fixed with the front end of the needle storage sleeve and extends out of the, the outer wall of the needle storage sleeve extending out of the front end part of the sliding sleeve is provided with a positioning cover extending out along the radial direction, the outer wall of the needle storage sleeve is provided with a spring plate, the outer wall of the sliding sleeve is provided with a positioning hole corresponding to the spring plate, the sliding sleeve slides forwards and backwards, when the front end of the sliding sleeve is in contact with the rear end of the positioning cover, the steel needle extends out of the front end of the sleeve, and when the spring plate is clamped in the positioning hole, the front end of the steel needle is positioned in the sleeve between the sealing column and the positioning.
The invention has novel and unique structure, is simple and reasonable, is easy to produce and operate, solves the problem of intramuscular injection for infants and children in clinical work, simultaneously prevents the occurrence of needle stick injury because the needle point of the steel needle is positioned in the protection of the sleeve after injection, is fixed by the positioning cover after the needle is inserted, prevents shaking, drives the steel needle to be separated from a human body for injection through the sliding sleeve, is safe and reliable, is convenient to use, has good effect, is innovation on an injector, and has good social and economic benefits.
Drawings
Fig. 1 is a schematic structural view (partially cut away) of the present invention.
FIG. 2 is an enlarged partial cross-sectional view of the front end of the cylinder according to the present invention (needle insertion state).
Fig. 3 is a partially enlarged sectional view of the front end of the cylinder according to the present invention (injection state).
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in figures 1-3, the invention comprises a needle cylinder 1, a piston core rod 2 and a steel needle 3, wherein a piston end 2a of the piston core rod 2 extends into an inner cavity of the needle cylinder from an opening at the rear end of the needle cylinder 1, the steel needle 3 is arranged at the front end of the needle cylinder 1, a negative pressure type sliding stroke cavity 1a is formed by a liquid inlet of the steel needle 3 and the inner cavity of the needle cylinder between the piston end of the piston core rod, the piston core rod slides forwards and backwards along the length direction of the inner cavity of the needle cylinder to form a compression type injection structure, a sliding sleeve 7 fixedly connected with the front end of the needle cylinder 1 is arranged outside the steel needle 3, a sliding sealing column 4 sliding forwards and backwards along the length direction of the sliding sealing column is sleeved on the steel needle 3, a needle storage sleeve 10 fixed with the sliding sealing column 4 is arranged between the sliding sleeve 7 and the steel needle 3, the front end of the needle storage sleeve 10 extends out of the sliding sleeve 7, a sleeve 5 fixed with the front end of, The front end of the sliding sleeve 7 is provided with a positioning cover 6 which extends along the radial direction, the outer wall of the needle storage sleeve 10 which extends out of the front end part of the sliding sleeve 7 is provided with an elastic sheet 8, the outer wall of the needle storage sleeve 10 is provided with a positioning hole 9 corresponding to the elastic sheet 8, the sliding sleeve slides forwards and backwards, when the front end of the sliding sleeve 7 is contacted with the rear end of the positioning cover 6, the steel needle 3 extends out of the front end of the sleeve 5, and when the elastic sheet 8 is clamped in the positioning hole 9, the front end of the steel needle 3 is positioned in the sleeve between the sealing column 4 and the positioning cover 6.
In order to ensure the using effect, the front end of the sleeve 5 is in a necking shape.
The back end of the piston core rod 2 is provided with a handle 2 b.
The needle cylinder 1 is provided with scales.
The steel needle 3 is separated from the sleeve 5, and the steel needle 3 is separated from the needle storage sleeve 10.
The sections of the sliding sleeve 7, the needle storage sleeve 10 and the sleeve 5 are all circular, the needle storage sleeve 10 is arranged on the inner side of the sliding sleeve 7, and the sleeve 5 is arranged on the inner side of the needle storage sleeve 10.
The outer side of the sliding sealing column 4 is connected with the inner peripheral wall of the needle storage sleeve 10 in a sealing manner.
The front end surface of the positioning cover 6 is flush with the front end surface of the needle storage sleeve 10.
The positioning cover 6 is connected with the needle storage sleeve 10 through threads.
The elastic sheet 8 is a triangular or columnar elastic sheet, the elasticity of the elastic sheet can be used for controlling the elastic sheet, a spring can be additionally arranged, the elastic sheet is compressed between the sliding sleeve 7 and the needle storage sleeve 10 when not popped up, when the elastic sheet slides to the position of the positioning hole, the elastic sheet extends outwards under the action of the elasticity of the elastic sheet or the spring elasticity of the elastic sheet and is clamped in the positioning hole, so that the sliding sleeve 7 and the needle storage sleeve 10 cannot slide relatively, and the front end of the steel needle 3 is positioned in a sleeve between the sealing column 4 and the positioning cover 6 at the moment, so that stable and safe injection can be carried out.
When the invention is used, the piston core rod is pushed, the length of the negative pressure type sliding stroke cavity is compressed, the liquid inlet end of the steel needle extends into the medicine, the piston core rod is pulled outwards, the length of the negative pressure type sliding stroke cavity is gradually increased, the medicine is sucked and filled in the negative pressure type sliding stroke cavity under the action of negative pressure, an operator holds the needle cylinder 1 with a pen in the right hand, the front end of the sliding sleeve 7 is contacted with the rear end of the positioning cover 6 at the moment, the steel needle 3 extends out of the front end of the sleeve 5, a puncture part is directly punctured by a selected part, the sleeve extending out of the front end part of the needle storage sleeve 10 enters a human body after the needle is inserted, the outer diameter of the needle storage sleeve is larger than that of the sleeve, the needle storage sleeve stops entering when the front end of the needle storage sleeve blocks, the positioning cover 6 is pressed by the left hand to be tightly attached to the skin, the needle cylinder 1 is pulled outwards by the right hand, the needle cylinder drives the steel needle 3 and, at the moment, the front end of the steel needle 3 is positioned in the sleeve between the sealing column 4 and the positioning cover 6, namely the steel needle is separated from the range of the human body, the sleeve is still remained in the infant body, the liquid medicine is pushed into the infant body through the sleeve by the right hand, the sliding sealing column plays a role of sliding sealing to prevent the liquid medicine from leaking, the injection is carried out in the mode, the problem of intramuscular injection to infants and children in clinical work is solved, simultaneously, the needle point of the steel needle is positioned in the protection of the sleeve after the injection, and the sleeve can be made of polyurethane materials of commercially available venous indwelling needles, so that the indwelling part is a hose, the problem that the needle point scratches muscles can not occur even if the infant moves, the occurrence of needle puncture injury is effectively avoided, the steel needle is fixed through the positioning cover after the needle is inserted to prevent the needle from shaking, the steel needle is driven to be separated from the human body through the sliding sleeve to carry out the injection, and therefore, medical personnel, safe and reliable, convenient to use, effectual is the innovation on the syringe, has good social and economic benefits.
Claims (8)
1. A disposable safety injection needle for children comprises a needle cylinder (1), a piston core rod (2) and a steel needle (3), wherein a piston end (2 a) of the piston core rod (2) extends into an inner cavity of the needle cylinder from an opening part at the rear end of the needle cylinder (1), the steel needle (3) is arranged at the front end of the needle cylinder (1), a negative pressure type sliding stroke cavity (1 a) is formed by a liquid inlet of the steel needle (3) and the inner cavity of the needle cylinder between the piston ends of the piston core rod, the piston core rod slides forwards and backwards along the length direction of the inner cavity of the needle cylinder to form a compression type injection structure, and is characterized in that a sliding sleeve (7) fixedly connected with the front end of the needle cylinder (1) is arranged on the outer side of the steel needle (3), a sliding sealing column (4) sliding forwards and backwards along the length direction of the steel needle is sleeved on the steel needle (3), a needle storage sleeve (10) fixed with the sliding sealing column (4) is arranged between the sliding sleeve (7, the front end face of the sealing column (4) is connected with a sleeve (5) which is fixed with the front end of the needle storage sleeve (10) and extends out of the front end of the needle storage sleeve, the steel needle (3) extends into the inner cavity of the needle storage sleeve (10), penetrates through the sealing column (4) and then extends forwards into the inner cavity of the sleeve (5), the outer wall of the needle storage sleeve (10) extending out of the front end part of the sliding sleeve (7) is provided with a positioning cover (6) extending out along the radial direction, the outer wall of the needle storage sleeve (10) is provided with an elastic sheet (8), the outer wall of the sliding sleeve (7) is provided with a positioning hole (9) corresponding to the elastic sheet, when the front end of the sliding sleeve (7) is contacted with the rear end of the positioning cover (6), the steel needle (3) extends out of the front end of the sleeve (5), when the elastic sheet (8) is clamped in the positioning hole (9), the front end of the steel needle (3) is positioned in the sleeve between the sealing column (4) and the positioning cover (6); the outer side of the sliding sealing column (4) is connected with the inner peripheral wall of the needle storage sleeve (10) in a sealing manner.
2. A disposable safety needle for children according to claim 1, characterized in that the front end of the sleeve (5) is in the shape of a throat.
3. A disposable safety syringe for children according to claim 1, characterized in that the back end of the plunger rod (2) is provided with a handle (2 b).
4. A disposable safety syringe for children according to claim 1, characterized in that the syringe (1) is provided with graduations.
5. A disposable safety needle for children according to claim 1, characterized in that the steel needle (3) is separated from the cannula (5) and the steel needle (3) is separated from the needle holder (10).
6. A disposable safety syringe for children according to claim 1, characterized in that the cross-sections of the sliding sleeve (7), the needle storage sleeve (10) and the cannula (5) are all circular, the needle storage sleeve (10) is arranged inside the sliding sleeve (7), and the cannula (5) is arranged inside the needle storage sleeve (10).
7. A disposable safety needle for children according to claim 1, characterized in that the front end surface of the positioning cover (6) is flush with the front end surface of the needle storage cover (10).
8. A disposable safety needle for children according to claim 1, characterized in that the positioning cap (6) is connected with the needle holder (10) by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905699.XA CN107497018B (en) | 2017-09-29 | 2017-09-29 | Disposable safety injection needle for children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905699.XA CN107497018B (en) | 2017-09-29 | 2017-09-29 | Disposable safety injection needle for children |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107497018A CN107497018A (en) | 2017-12-22 |
| CN107497018B true CN107497018B (en) | 2019-12-24 |
Family
ID=60700188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710905699.XA Active CN107497018B (en) | 2017-09-29 | 2017-09-29 | Disposable safety injection needle for children |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107497018B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387482A (en) * | 2018-04-27 | 2018-08-10 | 新疆维吾尔自治区产品质量监督检验研究院 | A kind of cementitious material slurry apparent density device for quick testing |
| CN108742929A (en) * | 2018-06-22 | 2018-11-06 | 佛山科学技术学院 | A kind of ruminal gas collection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09154946A (en) * | 1995-12-06 | 1997-06-17 | Misawa Ika Kogyo Kk | Indwelling needle set |
| CN2275454Y (en) * | 1996-08-12 | 1998-03-04 | 王克煌 | Arteriovenous needle |
| CN1271609A (en) * | 1999-04-26 | 2000-11-01 | 株式会社Jms | Wing carried injection needle device |
| CN202699769U (en) * | 2012-04-28 | 2013-01-30 | 上海金塔医用器材有限公司 | Disposable retraction safety injection needle |
| CN204017016U (en) * | 2014-07-15 | 2014-12-17 | 上海双鸽实业有限公司 | Disposable retention needle with automatic retracting needle tip |
| CN208448325U (en) * | 2017-09-29 | 2019-02-01 | 郑州大学第一附属医院 | A kind of disposable children's safe injection needle |
| CN208726437U (en) * | 2018-04-12 | 2019-04-12 | 左小明 | A kind of eject Anti-stabbing remaining needle |
-
2017
- 2017-09-29 CN CN201710905699.XA patent/CN107497018B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09154946A (en) * | 1995-12-06 | 1997-06-17 | Misawa Ika Kogyo Kk | Indwelling needle set |
| CN2275454Y (en) * | 1996-08-12 | 1998-03-04 | 王克煌 | Arteriovenous needle |
| CN1271609A (en) * | 1999-04-26 | 2000-11-01 | 株式会社Jms | Wing carried injection needle device |
| CN202699769U (en) * | 2012-04-28 | 2013-01-30 | 上海金塔医用器材有限公司 | Disposable retraction safety injection needle |
| CN204017016U (en) * | 2014-07-15 | 2014-12-17 | 上海双鸽实业有限公司 | Disposable retention needle with automatic retracting needle tip |
| CN208448325U (en) * | 2017-09-29 | 2019-02-01 | 郑州大学第一附属医院 | A kind of disposable children's safe injection needle |
| CN208726437U (en) * | 2018-04-12 | 2019-04-12 | 左小明 | A kind of eject Anti-stabbing remaining needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107497018A (en) | 2017-12-22 |
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