CN111686349A - Medical syringe needle - Google Patents
Medical syringe needle Download PDFInfo
- Publication number
- CN111686349A CN111686349A CN201910200207.6A CN201910200207A CN111686349A CN 111686349 A CN111686349 A CN 111686349A CN 201910200207 A CN201910200207 A CN 201910200207A CN 111686349 A CN111686349 A CN 111686349A
- Authority
- CN
- China
- Prior art keywords
- needle
- core
- hole
- medical
- annular
- 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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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
- 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- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
- 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
- A61M5/3287—Accessories for bringing the needle into the body; Automatic needle insertion
-
- 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
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
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 invention discloses a medical injection needle head which comprises a needle core, a needle cylinder and a needle seat, wherein the upper end of the needle seat is fixedly connected with the needle cylinder, a through hole is formed in the needle seat along the length direction of the needle core, the needle core penetrates out of the through hole and extends into the needle cylinder, a liquid storage groove and a rebound groove are sequentially formed in the through hole along the puncture direction of the needle core, the tail part of the needle core is connected with an annular pushing part, the annular pushing part is arranged in the liquid storage groove, an annular sliding block is further connected to the needle core, and the annular sliding block is arranged in the rebound groove and is connected with the end wall of the rebound groove through a spring. The invention can improve the injection speed of the liquid medicine and reduce the injection time, thereby relieving the pain of patients, and after the use, the needle core can rebound to the inside of the needle cylinder under the action of the spring, thereby effectively preventing medical personnel from being stabbed and improving the operation safety.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a medical injection needle.
Background
The syringe is a common medical appliance, which consists of a syringe with a small hole at the front end and a matched piston core rod and is mainly used for injecting liquid medicine or drawing liquid. When medical staff use or handle the syringe, the syringe is easy to be pricked accidentally due to negligence, and cross infection may be caused, and the injection time of the traditional syringe is long, which is not beneficial to alleviating pain of patients.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, an object of the present invention is to provide a medical injection needle, which is used to solve the problems in the prior art that medical staff is easily accidentally injured by a syringe and the injection time of medical liquid is long.
In order to achieve the above and other related objects, the present invention provides a medical injection needle, including a needle core, a needle cylinder and a needle seat, wherein the upper end of the needle seat is fixedly connected to the needle cylinder, a through hole is formed in the needle seat along the length direction of the needle core, the needle core penetrates out of the through hole and extends into the needle cylinder, a liquid storage tank and a rebound tank are sequentially arranged in the through hole along the puncture direction of the needle core, the tail of the needle core is connected with an annular pushing part, the annular pushing part is arranged in the liquid storage tank, the needle core is further connected with an annular slider, and the annular slider is arranged in the rebound tank and is connected with the end wall of the rebound tank through a spring.
Preferably, the bottom of the needle seat is provided with a standard interface.
Preferably, when the spring is compressed, the stylet penetrates out of the needle cylinder, and when the spring returns to the original state, the needle tip part of the stylet rebounds into the needle cylinder.
Preferably, the stylet is seamlessly attached to the through hole.
Preferably, the diameter of the annular pressing portion is kept consistent with the inner diameter of the liquid storage tank.
Compared with the prior art, the invention has the beneficial effects that: through setting up liquid storage tank and rebound groove, when using, the liquid medicine at first can get into liquid storage tank, annular bulldozes the portion and can promote the nook closing member to spur forward under the pressure effect, the annular slider in the rebound groove removes simultaneously makes the spring compression, during the injection, liquid medicine in the liquid storage tank sprays forward and goes out under the piston promotes, the injection speed of liquid medicine has been improved, the injection time has been reduced, thereby the pain of disease has been slowed down, and after finishing using, the nook closing member can kick-back to the cylinder inside under the spring action, effectively prevented that medical personnel from being stabbed wound, operation safety has been improved.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic view of a medical needle according to the present invention in use;
fig. 2 is a schematic view of a medical needle according to the present invention after use.
Wherein the reference numerals are specified as follows: the needle comprises a needle core 1, a needle cylinder 2, a needle seat 3, a through hole 4, a liquid storage tank 5, a rebound groove 6, an annular pushing part 7, an annular slide block 8, a spring 9 and a standard interface 10.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used to limit the conditions and conditions of the present disclosure, so that the present disclosure is not technically significant, and any structural modifications, ratio changes or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 and 2, the invention provides a medical injection needle, which comprises a needle core 1, a needle cylinder 2 and a needle seat 3, wherein the upper end of the needle seat 3 is fixedly connected with the needle cylinder 2, a through hole 4 is arranged in the needle seat 3 along the length direction of the needle core 1, the needle core 1 penetrates out of the through hole 4 and extends into the needle cylinder 2, a liquid storage tank 5 and a rebound groove 6 are sequentially arranged in the through hole 4 along the puncture direction of the needle core 1, the tail part of the needle core 1 is connected with an annular pushing part 7, the annular pushing part 7 is arranged in the liquid storage tank 5, the needle core 1 is also connected with an annular sliding block 8, and the annular sliding block 8 is arranged in the rebound groove 6 and is connected with the end wall of the rebound groove.
The bottom of the needle stand 3 is provided with a standard interface 10 which is used for connecting with a liquid medicine barrel of the injector; when the spring 9 is compressed, the stylet 1 penetrates out of the needle cylinder 2, and when the spring 9 is restored to the original state, the needle tip part of the stylet 1 rebounds to the needle cylinder 2; the needle core 1 is seamlessly attached in the through hole 4; the diameter of the annular pressing portion 7 is kept consistent with the inner diameter of the liquid storage tank 5.
When using, the liquid medicine can get into liquid storage tank 5 at first, annular portion 7 that bulldozes can promote nook closing member 1 under the pressure effect and stings forward, the annular slider 8 in rebound groove 6 removes and makes the compression of spring 9 simultaneously, during the injection, the liquid medicine in the liquid storage tank sprays forward under the piston promotes and goes out, the injection speed of liquid medicine has been improved, the injection time has been reduced, thereby the pain of disease has been slowed down, and after the use, nook closing member 1 can kick-back to the cylinder inside under the elasticity effect, effectively prevented that medical personnel from being stabbed, the operation safety has been improved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A medical injection needle is characterized by comprising a needle core (1), a needle cylinder (2) and a needle seat (3), the upper end of the needle seat (3) is fixedly connected with the needle cylinder (2), a through hole (4) is arranged in the needle seat (3) along the length direction of the needle core (1), the needle core (1) penetrates out of the through hole (4) and extends into the needle cylinder (2), a liquid storage groove (5) and a rebound groove (6) are sequentially arranged in the through hole (4) along the puncture direction of the stylet (1), the tail part of the stylet (1) is connected with an annular pushing part (7), the annular pushing part (7) is arranged in the liquid storage tank (5), the needle core (1) is further connected with an annular sliding block (8), and the annular sliding block (8) is arranged in the rebound groove (6) and connected with the end wall of the rebound groove (6) through a spring (9).
2. A medical needle according to claim 1, wherein: the bottom of the needle seat (3) is provided with a standard interface (10).
3. A medical needle according to claim 2, wherein: when the spring (9) is compressed, the stylet (1) penetrates out of the needle cylinder (2), and when the spring (9) returns to the original state, the needle tip of the stylet (1) rebounds into the needle cylinder (2).
4. A medical needle according to claim 3, wherein: the needle core (1) is seamlessly attached to the through hole (4).
5. A medical needle according to claim 4, wherein: the diameter of the annular pushing part (7) is consistent with the inner diameter of the liquid storage tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910200207.6A CN111686349A (en) | 2019-03-15 | 2019-03-15 | Medical syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910200207.6A CN111686349A (en) | 2019-03-15 | 2019-03-15 | Medical syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111686349A true CN111686349A (en) | 2020-09-22 |
Family
ID=72475541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910200207.6A Pending CN111686349A (en) | 2019-03-15 | 2019-03-15 | Medical syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111686349A (en) |
-
2019
- 2019-03-15 CN CN201910200207.6A patent/CN111686349A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |