CN209827830U - Fixed-dose needleless injector - Google Patents
Fixed-dose needleless injector Download PDFInfo
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- CN209827830U CN209827830U CN201821229132.1U CN201821229132U CN209827830U CN 209827830 U CN209827830 U CN 209827830U CN 201821229132 U CN201821229132 U CN 201821229132U CN 209827830 U CN209827830 U CN 209827830U
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- liquid medicine
- pipe
- fixed
- extrusion ball
- medicine box
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Abstract
The utility model discloses a fixed dose needleless syringe, place a section of thick bamboo, liquid medicine pipe, sealing washer, piston push rod, piston, first extrusion ball, liquid medicine box, first valve, play pencil, scale plate, check valve, exhaust tube, second extrusion ball, spring post, second valve and blast pipe including syringe casing, liquid medicine pipe. The utility model discloses the liquid medicine box is equipped with, can observe the scale plate on the liquid medicine box and come the medicine that carries out fixed dose to liquid medicine intraductal, in order to reach the needs that the ration was injected, when injecting different patients who inject the same liquid medicine, only need to change the liquid medicine pipe, need not frequently to dispense, and can be according to different patient's the condition, carry out the ration setting of different dosage liquid medicines, the use of device has been made things convenient for greatly, nurse's intensity of labour has been reduced, when the injection, at first press the second extrusion ball in a proper amount, treat that the sealing washer contacts the back with skin, loosen the second extrusion ball, the injection end of device is fixed this moment, avoid rocking the emergence of the condition.
Description
Technical Field
The utility model relates to an injector, in particular to a fixed-dose needleless injector, which belongs to the technical field of injectors.
Background
A needle-free injector is characterized in that a needle head is not used during medicine injection, a high-pressure jet principle is used, so that medicine liquid forms a thin liquid flow and instantly penetrates through the skin to reach the subcutaneous part, the medicine liquid is dispersed and distributed under the subcutaneous part due to the change of the injection principle, the acting time is faster, the medicine absorption rate is higher, and the needle-free injector has the advantages of safety, high efficiency, slight pain and the like compared with a needle-containing injector.
When injecting different patients who need to inject the same liquid medicine, because its syringe self does not have can quantitative device almost, so mostly be join in marriage a medicine, the injection is once, its efficiency is lower, and the emergence of the unnecessary condition of liquid medicine can appear in the majority of making up a medicine at every turn, the waste of liquid medicine has been caused, and nurse's intensity of labour has been increased, when needleless injector injects, need press the syringe, in order to avoid the syringe to take place to rock, thereby guarantee going on of injection, inconvenient use. Accordingly, a fixed-dose needleless injector is provided that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve the above problems by providing a fixed dose needleless injector.
The utility model realizes the above purpose by the following technical proposal, a fixed-dose needleless injector comprises an injector shell, wherein the inner wall of one end of the injector shell is in threaded sealing connection with a liquid medicine tube placing barrel, a liquid medicine tube is placed in the liquid medicine tube placing barrel, one end of the liquid medicine tube placing barrel far away from the injector shell is fixedly clamped with a sealing ring, one side wall of the liquid medicine tube placing barrel is fixedly provided with an exhaust pipe, one end of the exhaust pipe passes through the side wall of the liquid medicine tube placing barrel and extends into the liquid medicine tube placing barrel, the exhaust pipe is arranged adjacent to the sealing ring, one end of the exhaust pipe is in sealing connection with an exhaust pipe, the exhaust pipe is provided with a second valve, one end of the exhaust pipe far away from the exhaust pipe is fixedly provided with a second extrusion ball, the inside of the second extrusion ball is provided with a spring column through two arc-shaped plates, one side, the utility model discloses a syringe, including liquid medicine box, syringe casing, sealing washer, liquid medicine box, liquid.
Preferably, the liquid medicine pipe is a glass pipe with a micro hole, and the glass pipe is provided with scale marks.
Preferably, a sealing rotary sealing ring is sleeved on the surface of the joint of the medicine liquid tube placing barrel and the syringe shell.
Preferably, a medicine feeding port is formed in one side face of the liquid medicine box, and a sealing cover is arranged at the medicine feeding port.
Preferably, a scale plate is arranged on one side surface of the liquid medicine box.
Preferably, a check valve is arranged in the air pipe of the first extrusion ball.
The utility model has the advantages that:
1. the utility model is provided with the liquid medicine box, the scale plate on the liquid medicine box can be observed to add medicine with fixed dosage in the liquid medicine pipe so as to meet the requirement of quantitative injection, when different patients injecting the same liquid medicine are injected, only the liquid medicine pipe needs to be replaced, frequent medicine dispensing is not needed, and the quantitative setting of liquid medicines with different dosages can be carried out according to the conditions of different patients, thereby greatly facilitating the use of the device and reducing the labor intensity of nurses;
2. the utility model discloses be equipped with sealing washer and second extrusion ball, when the injection, at first press the second extrusion ball in right amount, treat that the sealing washer contacts the back with skin, loosen the second extrusion ball, the injection end of device is fixed this moment, avoids rocking the emergence of the condition, has made things convenient for the use of device greatly.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
fig. 2 is an enlarged view of the present invention a.
In the figure: 1. syringe casing, 2, liquid medicine pipe place a section of thick bamboo, 3, liquid medicine pipe, 4, sealing washer, 5, piston push rod, 6, piston, 7, first extrusion ball, 8, liquid medicine box, 9, first valve, 10, play pencil, 11, scale plate, 12, check valve, 13, exhaust tube, 14, second extrusion ball, 15, spring post, 16, second valve, 17, blast pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a fixed-dose needleless injector includes an injector housing 1, a drug solution tube placing cylinder 2 is connected to an inner wall of one end of the injector housing 1 in a screw thread sealing manner, a drug solution tube 3 is placed in the drug solution tube placing cylinder 2 for facilitating injection, a sealing ring 4 is fixedly clamped to one end of the drug solution tube placing cylinder 2 far away from the injector housing 1 for facilitating fixing of the device to an injection site, an exhaust pipe 17 is fixedly disposed on a side wall of the drug solution tube placing cylinder 2, one end of the exhaust pipe 17 passes through the side wall of the drug solution tube placing cylinder 2 and extends into the drug solution tube placing cylinder 2, the exhaust pipe 17 is disposed adjacent to the sealing ring 4, one end of the exhaust pipe 17 is connected to an exhaust pipe 13 in a sealing manner, a second valve 16 is disposed on the exhaust pipe 13, and a second squeeze ball 14 is fixedly disposed at one end of the, be convenient for take out of sealing washer 4 and skin contact department air, spring post 15 is installed through two arcs to second squeeze bulb 14 inside, the use of the device of being convenient for, one side outer wall fixed mounting of syringe casing 1 has liquid medicine box 8, liquid medicine box 8 is equipped with input and output, liquid medicine box 8's output sealing connection has out pencil 10, is convenient for go out the medicine, keeps away from the one end of play pencil 10 of liquid medicine box 8 output passes syringe casing 1 and extends to the inside of syringe casing 1, it is adjacent with the one end of keeping away from a liquid medicine pipe placing barrel 2 of sealing washer 4 to go out pencil 10, the input of pencil 8 has first squeeze bulb 7 through pipe seal connection, a side of first squeeze bulb 7 is equipped with check valve 12, is convenient for air pressure balance in the first squeeze bulb 7, install piston push rod 5 in the syringe casing 1, and a piston 6 is arranged at one end of the piston push rod 5, so that high-pressure gas can be conveniently formed to complete injection.
Medicine liquid pipe 3 is for opening the glass pipe that has the micropore, and is equipped with the scale mark on the glass pipe, the ration of the liquid medicine of being convenient for, sealed rotary seal circle has been cup jointed on the junction surface that medicine liquid pipe placed a section of thick bamboo 2 and syringe casing 1, makes the medicine liquid pipe place a section of thick bamboo 2 and syringe casing 1 between sealed each other, a side of medicine liquid box 8 is equipped with the medicine mouth, just it is equipped with sealed lid to add the medicine mouth, the medicine of medicine liquid box 8 of being convenient for, a side of medicine liquid box 8 is equipped with scale plate 11, and the liquid medicine is added to the ration of being convenient for, the choke valve is equipped with in the trachea of first extrusion ball 7, avoids the liquid medicine reflux to advance.
When the utility model is used, when in use, the sterile glove is taken, the sterile liquid medicine tube 3 is placed in the liquid medicine tube placing tube 2, then the liquid medicine tube placing tube 2 is rotated into the injector shell 1, then the liquid medicine to be injected is added into the liquid medicine box 8 through the medicine adding port, then the injector is vertically placed, the first valve 9 on the liquid medicine tube 10 is opened, at the moment, the liquid medicine in the liquid medicine box 8 slowly flows into the liquid medicine tube 3 through the liquid medicine tube 10 according to the air pressure principle, in order to accelerate the flow rate, the first extrusion ball 7 can be pressed to increase the pressure in the liquid medicine box 8, the scale plate 11 on the liquid medicine box 8 and the scale line on the liquid medicine tube 3 are observed while the extrusion ball is pressed, when the liquid medicine reaches the required injection amount, the first valve 9 on the liquid medicine tube 10 is closed at the moment, after the medicine adding is finished, the injection can be carried out, when the patient with the same medicine is injected, only the medicine liquid tube 3 needs to be replaced, the injection can be continued, the injection amount can be adjusted according to the condition of a patient, the situation that the medicine is dispensed again due to the fact that the injection amount cannot be determined is avoided, during injection, after alcohol wiped at the injection part is dried, the second valve 16 on the exhaust tube 13 is opened, the second extrusion ball 14 is pressed, the spring column 15 in the second extrusion ball 14 is deformed, then the sealing ring 4 on the medicine liquid tube placing barrel 2 is tightly attached to the injection part of the human body, the second extrusion ball 14 is loosened, the spring column 15 is deformed again, the medicine liquid tube 3 is provided with a micro hole, the medicine liquid cannot be sucked out, the spring column 15 is deformed again, the second extrusion ball 14 is restored, air between the sealing ring 4 and the skin of the human body is sucked out by the second extrusion ball 14, therefore a relatively sealed space is formed between the skin and the sealing ring 4, and the second valve 16 is closed, in order to avoid excessive absorption, the injection position of syringe this moment is fixed, when having avoided the injection, the skew appears, the emergence of the condition such as shake for whole injection process goes on more easily, when the device arouses, 6 poles of piston promote in the piston 6 gets into liquid medicine pipe 3, the liquid medicine of high-pressure draught in with liquid medicine pipe 3 is extruded by miniature hole, then penetrate into in the skin, the back is accomplished in the injection, open second valve 16, press the extrusion ball, take off whole syringe can, convenient and fast.
The remaining structure of the needleless injector is prior art and is fully within the skill of the art, and it is not to be understood that the present invention is not limited to the software and process modifications.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A fixed-dose needleless injector comprising an injector housing (1), characterized in that: the one end inner wall screw thread sealing connection of syringe casing (1) has a liquid medicine pipe to place a section of thick bamboo (2), liquid medicine pipe (3) have been placed in placing a section of thick bamboo (2) to the liquid medicine pipe of keeping away from syringe casing (1), the one end fixing clip who places a section of thick bamboo (2) has sealing washer (4), a fixed blast pipe (17) that is equipped with of a side wall that a section of thick bamboo (2) was placed to the liquid medicine pipe, the lateral wall that a section of thick bamboo (2) was placed to the liquid medicine pipe is passed to the one end of blast pipe (17) extends to in liquid medicine pipe places a section of thick bamboo (2), blast pipe (17) and sealing washer (4) adjacent setting, the one end sealing connection of blast pipe (17) has exhaust tube (13), be equipped with second valve (16) on exhaust tube (13), the one end fixed mounting who keeps away from exhaust tube (13) of blast pipe (17) has second extrusion ball (14), spring post, one side outer wall fixed mounting of syringe casing (1) has liquid medicine box (8), liquid medicine box (8) are equipped with input and output, the output sealing connection of liquid medicine box (8) has out pencil (10), keeps away from the one end of the play pencil (10) of liquid medicine box (8) output passes syringe casing (1) and extends to the inside of syringe casing (1), it is adjacent with the one end of keeping away from the pencil (10) that a liquid medicine pipe placing tube (2) of sealing washer (4) place, the input of liquid medicine box (8) has first extrusion ball (7) through pipe sealing connection, a side of first extrusion ball (7) is equipped with check valve (12), install piston push rod (5) in syringe casing (1), the one end of piston push rod (5) is equipped with piston (6).
2. A fixed-dose needleless injector as in claim 1 wherein: the liquid medicine tube (3) is a glass tube with a micro hole, and scale marks are arranged on the glass tube.
3. A fixed-dose needleless injector as in claim 1 wherein: and a sealed rotary sealing ring is sleeved on the surface of the joint of the liquid medicine tube placing barrel (2) and the injector shell (1).
4. A fixed-dose needleless injector as in claim 1 wherein: a medicine feeding opening is formed in one side face of the liquid medicine box (8), and a sealing cover is arranged at the medicine feeding opening.
5. A fixed-dose needleless injector as in claim 1 wherein: and a scale plate (11) is arranged on one side surface of the liquid medicine box (8).
6. A fixed-dose needleless injector as in claim 1 wherein: a check valve is arranged in an air pipe of the first extrusion ball (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821229132.1U CN209827830U (en) | 2018-08-01 | 2018-08-01 | Fixed-dose needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821229132.1U CN209827830U (en) | 2018-08-01 | 2018-08-01 | Fixed-dose needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209827830U true CN209827830U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821229132.1U Active CN209827830U (en) | 2018-08-01 | 2018-08-01 | Fixed-dose needleless injector |
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| CN (1) | CN209827830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350517A (en) * | 2018-12-04 | 2019-02-19 | 孙超 | A kind of automatic suction medicine formula anesthesia needle tubing |
| CN114192059A (en) * | 2021-12-08 | 2022-03-18 | 理纯(上海)洁净技术有限公司 | Automatic exhaust type semiconductor chemical reagent mixing and conveying system |
| CN114795568A (en) * | 2021-01-29 | 2022-07-29 | 安徽田园居家禽养殖有限公司 | Poultry is bred and uses vaccination protector |
-
2018
- 2018-08-01 CN CN201821229132.1U patent/CN209827830U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350517A (en) * | 2018-12-04 | 2019-02-19 | 孙超 | A kind of automatic suction medicine formula anesthesia needle tubing |
| CN114795568A (en) * | 2021-01-29 | 2022-07-29 | 安徽田园居家禽养殖有限公司 | Poultry is bred and uses vaccination protector |
| CN114192059A (en) * | 2021-12-08 | 2022-03-18 | 理纯(上海)洁净技术有限公司 | Automatic exhaust type semiconductor chemical reagent mixing and conveying system |
| CN114192059B (en) * | 2021-12-08 | 2023-10-31 | 理纯(上海)洁净技术有限公司 | Automatic exhaust type semiconductor chemical reagent mixed conveying system |
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