CN212817486U - Needle-free immunization injection handle capable of continuous injection - Google Patents
Needle-free immunization injection handle capable of continuous injection Download PDFInfo
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- CN212817486U CN212817486U CN202020474578.1U CN202020474578U CN212817486U CN 212817486 U CN212817486 U CN 212817486U CN 202020474578 U CN202020474578 U CN 202020474578U CN 212817486 U CN212817486 U CN 212817486U
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Abstract
The utility model discloses a needle-free immunity injection handle capable of continuous injection, the injection head structure in the injection cavity comprises a rubber piston, a push rod, an injection hole and a continuous administration port; the injection head structure is provided with a conical tip structure, and the tip is provided with an injection hole; the rubber piston of the hollow cylindrical inner cavity of the interference fit injection head structure is arranged at the end part of the push rod, the other end of the push rod is connected with the reset spring, and the continuous dosing port is arranged in a half part range of the hollow cylindrical inner cavity close to the power cavity, and is provided with a dosing port check valve and a continuous dosing port external connection dosing pipe. The injection head is structurally connected with the external medicine bin, single automatic medicine supplement is realized through the reset movement of the rubber piston after the medicine is emitted, the complex and unnecessary frequent medicine taking work is avoided, and the injection head can be used for immunization work of a large number of operations.
Description
Technical Field
The utility model belongs to the technical field of the needleless injection, in particular to needleless immunity injection handle that can inject in succession, especially its injection head structural connection outside medicine storehouse, the automatic benefit medicine is realized to the motion that resets of rubber piston after the accessible medicine launches, has avoided the work of frequently getting it filled of complicacy and unnecessary.
Background
The needleless injector applies high pressure to the liquid medicine to inject the liquid medicine to the medical apparatus under the skin of a patient through the micropores at the end part, so that the pain of puncturing the skin is avoided, the cross infection caused by the disinfection operation and the misoperation of the needle head is avoided, the medicine consumption can be saved by at least forty percent compared with the needle head puncturing injection, and the needleless injector has a very wide application prospect. However, the current needleless injector is complicated for single use, and particularly, the operation of medicine adding after use is high in operation requirement, the material consumption is increased, the cost is increased, and therefore, the needle-free injector cannot be used for large-workload operation of animal immunization at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome above-mentioned prior art not enough, provide a needleless immunity injection handle that can inject in succession, especially its injection head structural connection outside medicine storehouse, the automatic benefit medicine of single is realized to the motion that resets of rubber piston after the accessible medicine transmission, has avoided the work of frequently getting it filled of complicacy and unnecessary. The needleless injector applies high pressure to the liquid medicine so that the liquid medicine is injected to the animal immunization apparatus under the skin of livestock and poultry through the micropores at the end part, thereby not only reducing the emergency of the livestock and poultry caused by acupuncture injection, but also avoiding the trouble that the needle head needs to be replaced for each injection, or the cross infection caused by the untight disinfection of the needle head, and having quick and accurate injection without securing the livestock, and having very wide application prospect in the immunization of the livestock and poultry.
The technical scheme is as follows:
a needle-free immunity injection handle capable of continuous injection, the injection head structure in the injection cavity comprises a rubber piston, a push rod, an injection hole and a continuous administration port;
the injection head structure is provided with a conical tip structure, the tip is provided with an injection hole, a rubber piston in an interference fit injection head structure hollow cylindrical inner cavity is arranged at the end part of a push rod, the other end of the push rod is connected with a reset spring, a continuous dosing port is arranged in the range of the half part of the hollow cylindrical inner cavity close to a power cavity, a dosing port check valve is arranged at the continuous dosing port, and a dosing pipe is connected outside the continuous dosing port;
the push rod is strikeed fast to power unit's in the power cavity impact hammer, and the liquid medicine forms the efflux through the jet-port and pierces through skin and accomplish the injection, before the injection head point leaves skin, reset spring pulling push rod drives rubber piston and resets and withdraw and form the negative pressure, and supply liquid medicine gets into hollow cylinder inner chamber through dosing port, and the dosing port check valve is the check valve, only allows the liquid medicine to get into and prevents its backward flow that formation pressure caused when rubber piston promotes.
Further, the injection head structure is a polyformaldehyde plastic injection molding structure, the diameter range of the injection hole is 0.05-0.12 mm, the internal angle range of the tip cone is 9-15 degrees, and the length-diameter ratio range is 2-4; the cylindrical portion has an outer diameter in the range of 7.1mm to 9.8mm and a wall thickness in the range of 1.8mm to 2.8 mm.
Furthermore, the continuous dosing port is connected with the medicine bin through a dosing pipe.
Furthermore, a power mechanism is arranged in a power cavity of the needleless immunity injection handle, and the power mechanism is a mechanical spring impact mechanism.
Furthermore, a power mechanism is arranged in a power cavity of the needleless immunity injection handle, and the power mechanism is an electromagnetic force impact mechanism.
Furthermore, a power mechanism is arranged in a power cavity of the needleless immunity injection handle, and the power mechanism is a pneumatic impact mechanism.
Further, the push rod is a cross-shaped push rod.
An injection head structure that needleless immunity injection handle that can inject in succession has makes its external medicine storehouse of joinable, realizes single automatic benefit medicine through the motion that resets of rubber piston after the medicine is launched, has avoided complicated and unnecessary frequent medicine fetching work, can be used to a large amount of immunity injection works.
Drawings
Fig. 1 is a cross-sectional view of the housing of a continuous injection, needleless injection handpiece.
Fig. 2 is a cross-sectional view of an injection head structure of a continuous injection needleless injection handle.
Fig. 3 is a schematic view of a continuous injection needleless injection handle connected to a cartridge.
Description of reference numerals:
the device comprises a handle shell structure-1, an electrical structure cavity-2, a power cavity-3, a mechanical transmission cavity-4, an injection cavity-5, a rubber piston-6, a push rod-7, an injection head structure-8, an injection hole-9, a continuous dosing port-10, a return spring-11, a dosing tube-12, a dosing port check valve-13, an impact hammer-14 and a medicine bin-Y.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes in detail a needleless injection handle capable of continuous injection provided by the present invention with reference to the following embodiments. The following examples are intended to illustrate the invention and are not intended to limit the scope of the invention.
Example 1
As shown in figure 1, the handle casing structure 1, the electric structure cavity 2, the power cavity 3, the mechanical transmission cavity 4 and the injection cavity 5 of the needleless immunity injection handle capable of continuous injection.
As shown in fig. 2, an injection head structure 8 in the injection chamber 5 includes a rubber piston 6, a push rod 7, an injection hole 9, and a continuous administration port 10.
The injection head structure 8 has a conical tip structure, and the tip is provided with an injection hole 9. Preferably, the injection hole 9 may have a diameter ranging from 0.05 to 0.12mm, a tip taper inner angle ranging from 9 ° to 15 °, and an aspect ratio ranging from 2 to 4. The injection head structure 8 can be a polyformaldehyde plastic injection molding structure, the outer diameter range of the cylindrical part is 7.1mm to 9.8mm, and the wall thickness is 1.8mm to 2.8 mm.
A power mechanism is arranged in a power cavity 3 of the needleless immunity injection handle, and the power mechanism can be any one of a mechanical spring impact mechanism, an electromagnetic force impact mechanism or a pneumatic impact mechanism.
The tip of the injection head is forced to abut against the skin, a power mechanism in a power cavity 3 of the needleless immunity injection handle provides a pressure impact hammer 14 with the pressure of 15-30 Ma to quickly compress a return spring 11 to impact a push rod 7, liquid medicine forms jet flow with the jet diameter of 0.1-0.3 mm through an injection hole 9 to pierce the skin to complete injection, before the tip of the injection head leaves the skin, the return spring 11 pulls the push rod 7 to drive a rubber piston 6 to retract to form negative pressure, the supplied liquid medicine enters an inner cavity of a hollow cylinder through a continuous administration port 10, an administration port check valve 13 is a one-way valve, and only the liquid medicine is allowed to enter and is prevented from flowing back due to pressure formed when the rubber.
As shown in fig. 3, the injection head structure of the continuously injectable needleless immunization injection handle can be connected with an external medicine bin Y, single automatic medicine supplement is realized through the reset motion of the rubber piston after the medicine is emitted, the complex and unnecessary frequent medicine taking work is avoided, and the continuously injectable needleless immunization injection handle can be used for a large amount of immunization injection work.
The present invention is not limited to the above-described examples, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art.
Claims (7)
1. A needle-free immunity injection handle capable of continuous injection is characterized in that an injection head structure in an injection cavity comprises a rubber piston, a push rod, an injection hole and a continuous administration port;
injection head structure has the most advanced structure of toper, and the jet orifice has been seted up at the pointed end, and the rubber piston setting of the first hollow cylinder inner chamber of interference fit injection head is at the push rod tip, and reset spring, the mouth setting of dosing in succession are in the half part within range of the nearly power chamber in hollow cylinder inner chamber, and the mouth department of dosing sets up the mouth check valve of dosing in succession, and the mouth external connection of dosing in succession is administered the pipe.
2. The continuously injectable needle-free immuno injection handle according to claim 1, wherein the injection head structure is a polyoxymethylene plastic injection structure, the diameter of the injection hole ranges from 0.05 to 0.12mm, the internal angle of the tip taper ranges from 9 ° to 15 °, the length to diameter ratio ranges from 2 to 4; the cylindrical portion has an outer diameter in the range of 7.1mm to 9.8mm and a wall thickness in the range of 1.8mm to 2.8 mm.
3. The needle-free immuno injection handle according to claim 1 or 2, wherein said continuous administration port is connected to the cartridge via an administration tube.
4. The needleless injection handle of claim 3, wherein a power mechanism is disposed within the power chamber of the needleless injection handle, said power mechanism being a mechanical spring impact mechanism.
5. The needleless injection handle of claim 3, wherein a power mechanism is disposed within the power chamber of the needleless injection handle, said power mechanism being an electromagnetic force impact mechanism.
6. The needleless injection handle of claim 3, wherein a power mechanism is disposed within the power chamber of the needleless injection handle, said power mechanism being a pneumatic ram mechanism.
7. The continuously injectable needle-free immune injection handle according to claim 3 wherein the push rod is a cross-hair push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474578.1U CN212817486U (en) | 2020-04-03 | 2020-04-03 | Needle-free immunization injection handle capable of continuous injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474578.1U CN212817486U (en) | 2020-04-03 | 2020-04-03 | Needle-free immunization injection handle capable of continuous injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212817486U true CN212817486U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020474578.1U Active CN212817486U (en) | 2020-04-03 | 2020-04-03 | Needle-free immunization injection handle capable of continuous injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212817486U (en) |
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2020
- 2020-04-03 CN CN202020474578.1U patent/CN212817486U/en active Active
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