CN212016365U - Syringe - Google Patents
Syringe Download PDFInfo
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- CN212016365U CN212016365U CN201922461179.1U CN201922461179U CN212016365U CN 212016365 U CN212016365 U CN 212016365U CN 201922461179 U CN201922461179 U CN 201922461179U CN 212016365 U CN212016365 U CN 212016365U
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- liquid
- piston handle
- cylinder
- handle
- piston
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Abstract
The utility model discloses an injector, which comprises a needle head, a needle cylinder and a piston handle; a liquid channel and a gas channel isolated from the liquid channel are formed in the needle head; a liquid cylinder and a gas cylinder are formed in the needle cylinder, the liquid cylinder is communicated with the liquid channel, and the liquid cylinder is used for containing liquid medicine; clean air is arranged in the gas cylinder; the piston handle comprises a first piston handle and a second piston handle, one end of the first piston handle is arranged in the liquid cylinder and can perform piston movement in the liquid cylinder, and the other end of the first piston handle is operated to suck liquid medicine or inject solvent; one end of the second piston handle is arranged in the gas cylinder and can do piston movement in the gas cylinder, when the first piston handle is operated to suck liquid medicine, the second piston handle is close to the needle head, and when the first piston handle is operated to inject solvent, the second piston handle is far away from the needle head. The utility model discloses conveniently extract the liquid medicine in the sealed glass bottle, conveniently inject the menstruum to xiLin bottle simultaneously.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to an injector.
Background
The traditional syringe comprises a needle, a syringe barrel and a piston handle, wherein a channel is formed in the needle, the syringe barrel is communicated with the channel in the needle, and the piston handle part is arranged in the syringe barrel and can do piston motion in the syringe barrel. When a traditional syringe is used for extracting liquid medicine (such as 0.9% sodium chloride, penicillin and the like) in a sealed glass bottle, a needle head is firstly inserted into a bottle cap of the glass bottle, and then a piston handle is pulled upwards to drive the liquid medicine in the glass bottle into a syringe. However, along with piston handle pull-up, easily produce the negative pressure after the liquid is extracted in the bottle, the more negative pressure that produces that extracts the liquid medicine volume is big more, when making to take out the liquid medicine, the strength that needs is big more, even need extract the syringe needle to let outside air get into in the glass bottle, then extract again with the bottle lid that the syringe needle inserted the glass bottle once more, thereby greatly reduced work efficiency. Meanwhile, the outside air may be unclean, and the outside air may contaminate the liquid medicine in the glass bottle after entering the glass bottle.
The freeze-dried powder injection is a preparation form of a medicament, and is usually filled in a penicillin bottle, when the medicament is used, a solvent (such as water) is usually extracted by using a syringe, and then a needle head of the syringe is inserted into a bottle cap of the penicillin bottle so as to be injected into the penicillin bottle and dissolve the freeze-dried powder injection. However, as the solvent in the syringe is injected into the vial, the pressure of the vial becomes higher, so that the solvent in the syringe is difficult to inject into the vial.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the utility model aims to provide an injector which is convenient for extracting the liquid medicine in a sealed glass bottle and simultaneously convenient for injecting a solvent into a penicillin bottle.
In order to achieve the purpose, the embodiment of the utility model provides an injector, which comprises a needle head, a needle cylinder and a piston handle;
a liquid channel and a gas channel isolated from the liquid channel are formed in the needle head, the end part of the liquid channel is a liquid port, and the liquid port is positioned at the end part of the needle head; the end part of the gas channel is a gas port which is positioned at one side of the needle head;
a liquid cylinder and a gas cylinder which is isolated from the liquid cylinder are formed in the needle cylinder, the liquid cylinder is communicated with the liquid channel, and the liquid cylinder is used for containing liquid medicine; clean air is arranged in the gas cylinder;
the piston handle comprises a first piston handle and a second piston handle which is isolated from the first piston handle, one end of the first piston handle is arranged in the liquid cylinder and can perform piston movement in the liquid cylinder, and the other end of the first piston handle is operated to suck liquid medicine or inject menstruum; one end of the second piston handle is arranged in the gas cylinder and can do piston motion in the gas cylinder, the second piston handle does corresponding motion under the operation of the first piston handle, when the first piston handle is operated to suck liquid medicine, the second piston handle is close to the needle head, and when the first piston handle is operated to inject solvent, the second piston handle is far away from the needle head.
According to the utility model discloses a syringe, when absorbing the liquid medicine, insert the syringe needle in the sealed glass bottle, after that with the motion of first piston handle toward keeping away from the syringe needle direction, in order to extract the liquid medicine in the sealed glass bottle to the liquid cylinder, at this moment, form the negative pressure in the sealed glass bottle, order about the motion of second piston handle toward being close to the syringe needle direction after forming the negative pressure in the sealed glass bottle, thereby carry the clean air in the gas cylinder to the sealed glass bottle in, keep pressure balance, thereby it is very convenient to make the extraction liquid medicine, and simultaneously, the liquid medicine in the sealed glass bottle can not be polluted to the clean air in the gas cylinder.
When the injection menstruum, the liquid barrel absorbs the menstruum earlier, then insert the syringe needle in the xiLin bottle, again with first piston handle toward being close to the motion of syringe needle direction, inject the menstruum in the liquid barrel to xiLin bottle in and with xiLin bottle in the freeze-dried powder needle mix dissolve, at this moment, the pressure increase in the xiLin bottle, order about the second piston handle after the pressure increase in the xiLin bottle and toward keeping away from the motion of syringe needle direction, thereby with air transport to the gas barrel in the xiLin bottle, keep pressure balance, thereby conveniently inject the menstruum in the syringe to xiLin bottle smoothly. Meanwhile, air in the penicillin bottle is conveyed into the air cylinder body and cannot directly contact with the outside air, so that the smell of the liquid medicine cannot be emitted. Therefore, the utility model discloses conveniently extract the liquid medicine in the sealed glass bottle, conveniently inject the menstruum to xiLin in the bottle simultaneously.
In addition, according to the present invention, the syringe provided in the above embodiment may further have the following additional technical features:
furthermore, a partition plate is arranged in the needle cylinder, separates the liquid cylinder from the gas cylinder and separates the first piston handle from the second piston handle.
Further, the mouth of the gas port is inclined downward.
Furthermore, one end of the syringe far away from the needle head is provided with a first handle which is convenient for operation.
Furthermore, one end of the first piston handle, which is far away from the needle head, is provided with a second handle which is convenient to operate; one end of the second piston handle, which is far away from the needle head, is provided with a third handle.
Further, the outer surface of the liquid cylinder body is provided with scales.
Drawings
Fig. 1 is a schematic structural view of a syringe according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a schematic structural view of a syringe according to an embodiment of the present invention when sucking a liquid medicine;
fig. 4 is a schematic structural diagram of a syringe for injecting a solvent according to an embodiment of the present invention.
Description of the reference symbols
Needle 1 fluid passage 11
First piston handle 31 second handle 311
Second piston handle 32 third handle 321
Sealed glass bottle 4 XiLin bottle 5
A partition plate 6.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 to 4, an injector according to an embodiment of the present invention includes a needle 1, a cylinder 2, and a piston handle 3; a liquid channel 11 and a gas channel 12 isolated from the liquid channel 11 are formed in the needle head 1, the end part of the liquid channel 11 is a liquid port 111, and the liquid port 111 is positioned at the end part of the needle head 1; the end part of the gas channel 12 is a gas port 121, and the gas port 121 is positioned at one side of the needle head 1; a liquid cylinder 21 and a gas cylinder 22 isolated from the liquid cylinder 21 are formed in the needle cylinder 2, the liquid cylinder 21 is communicated with the liquid channel 11, and the liquid cylinder 21 is used for containing liquid medicine; clean air is provided in the gas cylinder 22.
The piston handle 3 comprises a first piston handle 31 and a second piston handle 32 which is isolated from the first piston handle 31, one end of the first piston handle 31 is arranged in the liquid cylinder 21 and can do piston motion in the liquid cylinder 21, and the other end of the first piston handle 31 is operated to suck liquid medicine or inject menstruum; one end of the second piston handle 32 is arranged in the gas cylinder 22 and can perform piston movement in the gas cylinder 22, the second piston handle 32 performs corresponding movement under the operation of the first piston handle 31, when the first piston handle 31 is operated to suck the liquid medicine, the second piston handle 32 is close to the needle head 1, and when the first piston handle 31 is operated to inject the solvent, the second piston handle 32 is far away from the needle head 1.
When drawing the liquid medicine, as shown in fig. 3, insert syringe needle 1 in sealed glass bottle 4, then with first piston handle 31 toward keeping away from 1 direction motion of syringe needle, in order to extract the liquid medicine in sealed glass bottle 4 to liquid barrel 21, at this moment, form the negative pressure in the sealed glass bottle 4, order about second piston handle 32 toward being close to 1 direction motion of syringe needle after forming the negative pressure in the sealed glass bottle 4, thereby carry the clean air in the gas barrel 22 to sealed glass bottle 4 in, keep pressure balance, thereby it is very convenient to make the extraction liquid medicine, and simultaneously, the clean air in the gas barrel 22 can not pollute the liquid medicine in the sealed glass bottle 4.
When injecting the menstruum, as shown in fig. 4, liquid barrel 21 absorbs the menstruum earlier, insert xiLin bottle 5 with syringe needle 1 in succession, move first piston handle 31 toward being close to syringe needle 1 direction again, inject the menstruum in the liquid barrel 21 to xiLin bottle 5 in and dissolve with xiLin bottle 5 in the freeze-dried powder mixture, at this moment, the pressure increase in xiLin bottle 5, drive second piston handle 32 after the pressure increase in xiLin bottle 5 and toward keeping away from the motion of 1 direction of syringe needle, thereby carry the air in xiLin bottle 5 to gaseous barrel 22 in, keep pressure balance, thereby conveniently inject the menstruum in the syringe to xiLin bottle 5 smoothly. Meanwhile, the air in the penicillin bottle 5 is conveyed into the gas cylinder 22 and cannot directly contact with the outside air, so that the smell of the liquid medicine cannot be emitted. Therefore, the utility model discloses conveniently extract the liquid medicine in the sealed glass bottle 4, conveniently inject the menstruum to xiLin bottle 5 simultaneously.
It should be noted that, during the injection of the solvent, the needle 1 can be pulled up along with the injection of the solvent, the gas-preventing port 121 is already in contact with the liquid medicine, and the liquid medicine is prevented from entering the gas cylinder 22, and in a special case, even if the liquid medicine enters the gas cylinder 22, the needle 1 can be pulled up, and the liquid medicine in the gas cylinder 22 falls into the vial 5 under the action of gravity.
In some examples, a partition plate 6 is disposed in the syringe 2, the partition plate 6 separates the liquid cylinder 21 from the gas cylinder 22 and separates the first piston handle 31 from the second piston handle 32, and the partition plate 6 is disposed in the syringe 2 and effectively separates the liquid cylinder 21 from the gas cylinder 22, so that the liquid cylinder 21 and the gas cylinder 22 are not affected by each other, and the first piston handle 31 and the second piston handle 32 partially disposed in the syringe 2 are not affected by each other, thereby facilitating the operation.
As an example, as shown in fig. 2, the mouth of the gas port 121 may be inclined downward, and the inclined downward gas port 121 facilitates the transportation of the clean air in the gas cylinder 22 into the sealed glass bottle 4 when the liquid medicine is sucked, and the inclined downward gas port 121 facilitates the transportation of the air in the vial 5 into the gas cylinder 22 when the solvent is injected.
In some examples, the end of the barrel 2 remote from the needle 1 is provided with a first handle 23 to facilitate handling. When sucking the medicine liquid or injecting the solvent, the finger can lean against the first handle 23 to facilitate the sucking of the medicine liquid or injecting the solvent.
According to the embodiment of the present invention, the end of the first piston handle 31 away from the needle 1 is provided with a second handle 311 for easy operation; the end of the second piston shaft 32 remote from the needle 1 is provided with a third handle 321. When injecting the solvent, the thumb may be pressed against the second handle 32 to inject the solvent. Meanwhile, a third handle 321 is arranged at one end of the second piston handle 32 far away from the needle 1, so that the second piston handle 32 and the first piston handle 31 are in the same shape, uniform production is facilitated, and a pair of dies is shared.
In some examples, the outer surface of the liquid cylinder 21 is provided with a scale, which is convenient for viewing the amount of the liquid medicine sucked from the liquid cylinder 21.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (6)
1. A syringe, characterized by: comprises a needle head, a needle cylinder and a piston handle;
a liquid channel and a gas channel isolated from the liquid channel are formed in the needle head, the end part of the liquid channel is a liquid port, and the liquid port is positioned at the end part of the needle head; the end part of the gas channel is a gas port which is positioned at one side of the needle head;
a liquid cylinder and a gas cylinder which is isolated from the liquid cylinder are formed in the needle cylinder, the liquid cylinder is communicated with the liquid channel, and the liquid cylinder is used for containing liquid medicine; clean air is arranged in the gas cylinder;
the piston handle comprises a first piston handle and a second piston handle which is isolated from the first piston handle, one end of the first piston handle is arranged in the liquid cylinder and can perform piston movement in the liquid cylinder, and the other end of the first piston handle is operated to suck liquid medicine or inject menstruum; one end of the second piston handle is arranged in the gas cylinder and can do piston motion in the gas cylinder, the second piston handle does corresponding motion under the operation of the first piston handle, when the first piston handle is operated to suck liquid medicine, the second piston handle is close to the needle head, and when the first piston handle is operated to inject solvent, the second piston handle is far away from the needle head.
2. The syringe of claim 1, wherein: the syringe is internally provided with a separation plate which separates the liquid cylinder from the gas cylinder and separates the first piston handle from the second piston handle.
3. The syringe of claim 1, wherein: the mouth of the gas port is inclined downward.
4. The syringe of claim 1, wherein: one end of the syringe far away from the needle head is provided with a first handle which is convenient for operation.
5. The syringe of claim 4, wherein: one end of the first piston handle, which is far away from the needle head, is provided with a second handle which is convenient to operate; one end of the second piston handle, which is far away from the needle head, is provided with a third handle.
6. The syringe of any one of claims 1-5, wherein: the outer surface of the liquid cylinder body is provided with scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922461179.1U CN212016365U (en) | 2019-12-31 | 2019-12-31 | Syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922461179.1U CN212016365U (en) | 2019-12-31 | 2019-12-31 | Syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212016365U true CN212016365U (en) | 2020-11-27 |
Family
ID=73483380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922461179.1U Expired - Fee Related CN212016365U (en) | 2019-12-31 | 2019-12-31 | Syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212016365U (en) |
-
2019
- 2019-12-31 CN CN201922461179.1U patent/CN212016365U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |