CN211434528U - Closed medicine dissolving syringe - Google Patents
Closed medicine dissolving syringe Download PDFInfo
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- CN211434528U CN211434528U CN201921841883.3U CN201921841883U CN211434528U CN 211434528 U CN211434528 U CN 211434528U CN 201921841883 U CN201921841883 U CN 201921841883U CN 211434528 U CN211434528 U CN 211434528U
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- needle
- sealing sleeve
- needle seat
- elastic sealing
- closed
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Abstract
The utility model discloses a closed medicine dissolving syringe, which comprises a syringe (1), a syringe needle (2) and an elastic sealing sleeve (3) which is sleeved outside the syringe needle (2) and is made of elastic material. Can effectively prevent the needle head from being polluted and accidentally injured when in use, and has simple structure, convenient operation and low cost.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a closed medicine dissolving syringe.
Background
Powder medicine must be dissolved before injection or infusion, generally, a syringe with an injection needle is used for inputting liquid into a powder container, then a steel needle is pulled out to shake the container to dissolve the powder, and then the liquid medicine is sucked out for use. In the operation process, the steel needle is exposed, and pollution or puncture injury due to errors can be easily caused.
The patent document with application number 201610675994.6 discloses a prevent stinging structure of syringe needle with a plurality of sliders constitution for dissolve medicine syringe can reach and prevent stinging the effect, but the steel needle still exposes in the air, and especially annotate the liquid back sheath roll-off and can not retract, must change when inhaling the medicine, dissolves and the suction dissolves the medicine syringe with two at least, and the cost is multiplied, the wasting of resources.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a closed type medicine dissolving syringe which can effectively prevent needle head from being polluted and accidentally injured when in use, and has the advantages of simple structure, convenient operation and low cost.
In order to achieve the purpose, the invention adopts the following specific technical scheme.
A closed type medicine dissolving syringe comprises a syringe and a syringe needle, wherein the syringe needle consists of a steel needle and a needle seat, and the outer end part of the needle seat is provided with a needle seat joint; the steel needle is fixedly connected with the needle seat through the needle seat joint, and the needle seat is connected to the joint of the injector;
the closed type medicine dissolving syringe also comprises an elastic closed sleeve which is sleeved outside the needle seat and is made of elastic materials and can elastically contract when being subjected to axial pressure;
the interior of the elastic sealing sleeve is of a hollow structure, and a hole is formed in the center of the outer end face;
in a natural state, the steel needle is covered in the elastic closed sleeve.
When the closed medicine dissolving injector is used, the outer end face of the elastic sealing sleeve elastically contracts along the axial direction when the outer end face of the elastic sealing sleeve is subjected to axial pressure, so that a steel needle of an injection needle extends out; when the pressure is removed, the elastic sealing sleeve can automatically extend and reset to shield the steel needle of the injection needle.
Preferably, the elastic material for making the elastic sealing sleeve is at least one selected from rubber, silica gel, synthetic rubber and the like.
Preferably, the peripheral edge of the elastic sealing sleeve is in an organ-shaped folding structure. Based on the structure, the elastic sealing sleeve can be folded and contracted when being slightly pressed, response is rapid, restoring force is strong, and the elastic sealing sleeve can be rapidly reset after the pressure is removed.
Preferably, the side of the elastic sealing sleeve is provided with at least one vent hole, so that the elastic sealing sleeve is not subjected to resistance of air pressure when being stretched.
Preferably, the hole at the center of the outer end face of the elastic sealing sleeve is used for a steel needle to pass through. More preferably, the aperture is adapted to receive the hub adapter therethrough.
Preferably, the sleeve opening of the elastic sealing sleeve is buckled between the outer end part of the syringe cylinder body of the injector and the needle seat. It will be readily appreciated that the axial length of the resilient closure sleeve should be greater than the total length of the steel needle and the needle mount, and the diameter of the lumen should be no less than the outer diameter of the base of the needle mount, preferably both dimensions being adapted to ensure a snap-fit effect.
Preferably, the side of the needle seat joint is provided with at least one air exhaust groove. When the air exhaust groove is used, the needle seat joint is attached to the opening of the medicine bottle, and part of the needle seat joint penetrates into the opening of the medicine bottle, so that one end of the air exhaust groove is communicated with the inside of the medicine bottle, and the other end of the air exhaust groove is communicated with the outside. When the steel needle and the needle seat joint are punctured into a medicine bottle, gas is discharged through the exhaust groove when medicine liquid is injected, and gas enters the medicine bottle through the exhaust groove when medicine is sucked, so that internal and external isobaric pressure is kept.
Compared with the prior art, the invention has the beneficial effects that: the steel needle of the closed type medicine dissolving syringe is inserted into the container bottle when working, is stored in the elastic sealing sleeve when not working, is isolated from the external environment all the time, and can effectively prevent pollution; when inserting the medicine bottle, elasticity seals cover and medicine bottle contact, and the automatic folding shrink of pressurized pops out the extension when moving back the needle automatically, accomodates the steel needle, can effectively prevent stabbing. The product has simple structure, convenient use, low cost and convenient popularization.
Drawings
FIG. 1 is a schematic view of the overall structure of a closed type drug dissolving syringe of the present invention;
FIG. 2 is a schematic view of the construction of a resilient closure sleeve;
FIG. 3 is an enlarged partial schematic view of the resilient sealing sleeve;
fig. 4 is a partial enlarged structure schematic view of the joint part of the needle seat.
Detailed Description
The present invention will be described in further detail with reference to the attached drawings, but the present invention should not be construed as being limited to the scope of the present invention.
Examples
As shown in figure 1, the closed medicine dissolving syringe comprises a syringe 1, a needle 2 and an elastic sealing sleeve 3.
The injection needle 2 is composed of a steel needle 21 and a needle seat 22, the outer end part of the needle seat 22 is provided with a needle seat joint 23, and the side part of the needle seat joint 23 is provided with an exhaust groove 24 (shown in figure 4). The steel needle 21 is fixedly connected with a needle seat 22 through a needle seat joint 23, and the needle seat 22 is connected on the joint of the injector 1.
As shown in fig. 2 and 3, the elastic sealing sleeve 3 is made of elastic silica gel, the interior of the elastic sealing sleeve is of a hollow structure, and the periphery of the elastic sealing sleeve is of an organ-shaped folding structure. The side of the elastic sealing sleeve 3 is provided with an air vent 32, and the center of the outer end surface is provided with a hole 31 for the steel needle 21 and the needle seat joint 23 to pass through.
The elastic sealing sleeve 3 is sleeved outside the injection needle 2, and the sleeve opening thereof is buckled between the outer end part of the syringe barrel of the injector 1 and the needle seat 22. The axial length of the elastic sealing sleeve 3 is larger than the total length of the steel needle 21 and the needle seat 22, and the diameter of the inner cavity is matched with the outer diameter of the bottom of the needle seat 22.
In the natural state, the steel needle 21 is shielded inside the elastic closing sleeve 3. When the outer end face of the elastic sealing sleeve 3 is contacted with the powder container, the elastic sealing sleeve 3 automatically folds and contracts along the axial direction when being subjected to axial pressure, and the steel needle 21 extends out of the hole 31 and enters the container (at the moment, part of the needle seat joint 23 simultaneously enters the container to ensure equal pressure inside and outside the container). When the pressure is removed after the use, the elastic sealing sleeve 3 can automatically extend and reset in time to shield the steel needle 21 of the injection needle 2.
In the whole using process, the steel needle 21 is not directly exposed in the environment, and the anti-pollution and anti-stab effects are obvious.
The foregoing description is only exemplary of the invention. From the above, those skilled in the art can make various changes and modifications without departing from the technical idea of the present invention. The protection scope of the present invention is not limited to the above-mentioned embodiments, but is subject to the scope defined by the claims.
Claims (9)
1. A closed type medicine dissolving syringe comprises a syringe (1) and an injection needle (2), wherein the injection needle (2) consists of a steel needle (21) and a needle seat (22), and the outer end part of the needle seat (22) is provided with a needle seat joint (23); the steel needle (21) is fixedly connected with a needle seat (22) through a needle seat joint (23), and the needle seat (22) is connected on the joint of the injector (1);
the method is characterized in that:
the closed type medicine dissolving syringe also comprises an elastic closed sleeve (3) sleeved outside the needle seat (22), wherein the elastic closed sleeve is made of elastic materials and can elastically contract when being subjected to axial pressure so as to extend or shield the steel needle (21);
the interior of the elastic sealing sleeve (3) is of a hollow structure, and a hole (31) for a steel needle (21) to pass through is formed in the center of the outer end face;
in a natural state, the steel needle (21) is shielded in the elastic sealing sleeve (3);
when the elastic needle is elastically contracted by axial pressure, the steel needle (21) extends out of the elastic sealing sleeve from the hole (31).
2. The closed drug dissolving syringe according to claim 1, wherein: the sleeve opening of the elastic sealing sleeve (3) is buckled between the upper end part of the syringe cylinder body of the injector (1) and the needle seat (22).
3. The closed type drug dissolving syringe according to claim 1 or 2, wherein: the axial length of the elastic sealing sleeve (3) is greater than the total length of the steel needle (21) and the needle seat (22), and the diameter of the inner cavity of the elastic sealing sleeve is not less than the outer diameter of the bottom of the needle seat (22).
4. The closed drug dissolving syringe according to claim 3, wherein: the diameter of the inner cavity of the elastic sealing sleeve (3) is matched with the outer diameter of the bottom of the needle seat (22).
5. The closed drug dissolving syringe according to claim 1, wherein: the elastic material is selected from at least one of rubber, silica gel and synthetic rubber.
6. The closed drug dissolving syringe according to claim 1, wherein: the periphery of the elastic sealing sleeve (3) is of an organ-shaped folding structure.
7. The closed drug dissolving syringe according to claim 1, wherein: the side part of the elastic sealing sleeve (3) is provided with at least one exhaust hole (32).
8. The closed drug dissolving syringe according to claim 1, wherein: the hole (31) can be contracted and extruded to allow the needle seat joint (23) to pass through.
9. The closed drug dissolving syringe according to claim 1, wherein: the side part of the needle seat joint (23) is provided with at least one air exhaust groove (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921841883.3U CN211434528U (en) | 2019-10-29 | 2019-10-29 | Closed medicine dissolving syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921841883.3U CN211434528U (en) | 2019-10-29 | 2019-10-29 | Closed medicine dissolving syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211434528U true CN211434528U (en) | 2020-09-08 |
Family
ID=72313891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921841883.3U Active CN211434528U (en) | 2019-10-29 | 2019-10-29 | Closed medicine dissolving syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211434528U (en) |
-
2019
- 2019-10-29 CN CN201921841883.3U patent/CN211434528U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 679 Guangyuan Road, Longtou Town, Potou District, Zhanjiang City, Guangdong Province, 524001 Patentee after: Zhanjiang Jianliyuan Medical Supplies Co.,Ltd. Address before: 524001 No.26, middle Renmin Avenue, Zhanjiang City, Guangdong Province Patentee before: ZHANJIANG JIANLIYUAN MEDICAL PRODUCTS Co.,Ltd. |
|
| CP03 | Change of name, title or address |