CN220070347U - Automatic injector - Google Patents
Automatic injector Download PDFInfo
- Publication number
- CN220070347U CN220070347U CN202321189202.6U CN202321189202U CN220070347U CN 220070347 U CN220070347 U CN 220070347U CN 202321189202 U CN202321189202 U CN 202321189202U CN 220070347 U CN220070347 U CN 220070347U
- Authority
- CN
- China
- Prior art keywords
- butt joint
- needle
- syringe
- injector
- syringe needle
- 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.)
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Links
- 210000001503 joint Anatomy 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 10
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 10
- 241001330002 Bambuseae Species 0.000 claims abstract description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 10
- 239000011425 bamboo Substances 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims 3
- 229940090047 auto-injector Drugs 0.000 claims 2
- 239000003814 drug Substances 0.000 abstract description 46
- 239000007788 liquid Substances 0.000 abstract description 21
- 238000009423 ventilation Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 5
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an automatic injector, which comprises an injector needle cylinder, an injector push rod and an injector needle head, wherein the injector push rod is inserted into the inner wall of the injector needle cylinder, the end part of the injector needle cylinder is sleeved with the injector needle head, and the surface of the injector needle cylinder is provided with an air injection pressurizing mechanism; the gas injection pressurizing mechanism comprises a butt joint cylinder, a butt joint column, a sealing ring, a connecting pipe, a ventilation needle, a ventilation pipe, an air bag and a limit clamp; the butt joint section of thick bamboo is connected at the tip of syringe cylinder, and the inside grafting of butt joint section of thick bamboo has the butt joint post, and the sealing washer has been cup jointed on the surface of butt joint post. After the syringe needle and the ventilation needle are inserted into the rubber plug of the medicine bottle, the air bag is extruded to extrude the clean air inside the medicine bottle through the ventilation pipe, the connecting pipe and the ventilation needle, the air pressure in the medicine bottle is increased to extrude the medicine liquid into the syringe needle cylinder through the syringe needle, and therefore pollution of the medicine liquid caused by unclean air entering the medicine bottle can be reduced conveniently.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to an automatic injector.
Background
The syringe is a common medical appliance, the syringe body is generally made of high polymer materials, the piston is generally made of natural rubber, the syringe is mainly used for extracting or injecting gas or liquid by a needle head, the syringe is generally composed of the syringe body, a conical head, the piston and a core rod, the syringe can be used for sucking liquid medicine to be injected into subcutaneous tissues of a patient, and meanwhile, the syringe can also be used for sucking the liquid medicine to be injected into a drip medicine bottle, so that liquid medicine mixing is carried out under the condition of avoiding medicine pollution. The existing syringes have the following problems in the use process:
in the process of sucking the liquid medicine, the existing injector firstly injects air into the medicine bottle, and the air pressure in the medicine bottle is increased at the moment, so that the liquid medicine can be extruded into the needle head of the injector and enter the syringe, and in the process, the air needs to be sucked into the syringe, so that the pollution to the liquid medicine in the medicine bottle is easily caused.
Disclosure of Invention
(1) Technical problem to be solved
In view of the shortcomings of the prior art, the present utility model aims to provide an automatic injector, which aims to solve the technical problems that in the prior art, in the process of sucking liquid medicine, air is injected into a medicine bottle firstly, and then the air pressure in the medicine bottle is increased, so that the liquid medicine can be extruded into a syringe needle and enter the inside of a syringe needle, and in the process, air needs to be sucked into the inside of the syringe needle firstly, and thus the pollution to the liquid medicine in the medicine bottle is easy to cause.
(2) Technical proposal
In order to solve the technical problems, the utility model provides an automatic injector, which comprises an injector needle cylinder, an injector push rod and an injector needle, wherein the injector push rod is inserted into the inner wall of the injector needle cylinder, the end part of the injector needle cylinder is sleeved with the injector needle, and the surface of the injector needle cylinder is provided with an air injection pressurizing mechanism.
When the syringe of this technical scheme is used, after syringe needle and the inside of the rubber buffer of ventilation syringe needle inserted the medicine bottle, the gasbag receives the extrusion and can be with inside clean air can be through breather pipe, connecting pipe and the inside of the inside medicine bottle that ventilation syringe needle crowded into, and the inside that the inside atmospheric pressure grow of medicine bottle can extrude the liquid medicine to the inside of syringe cylinder through the syringe needle to can conveniently reduce the pollution that the inside that unclean air got into the medicine bottle caused the liquid medicine.
Preferably, the gas injection pressurizing mechanism comprises a butt joint cylinder, a butt joint column, a sealing ring, a connecting pipe, a ventilation needle, a ventilation pipe, an air bag and a limit clamp, wherein the butt joint cylinder is connected to the end part of the syringe cylinder, and the syringe cylinder and the butt joint cylinder are of an integrated structure.
Furthermore, the inside of the butt joint barrel is inserted with a butt joint column, and the surface of the butt joint column is sleeved with a sealing ring.
Furthermore, the surface of the butt joint post is provided with three groups of sealing rings, the sealing rings are made of rubber materials, the butt joint post is in interference connection with the inner wall of the butt joint barrel through the sealing rings, the butt joint post is fixedly connected with the butt joint barrel through the sealing rings, and therefore the position of the connecting pipe can be fixed.
Furthermore, the top of butt joint post is connected with the connecting pipe, the end connection of connecting pipe has the syringe needle that ventilates, and the syringe needle that ventilates can conveniently insert from the bottle plug of medicine bottle, conveniently injects the air to the inside of medicine bottle through the syringe needle that ventilates.
Furthermore, the side surface of the connecting pipe is connected with a vent pipe, the end part of the vent pipe is connected with an air bag, the air bag is in a stretched state under the condition of not unsealing, and clean air exists in the air bag.
Furthermore, a communication structure is formed among the air bag, the vent pipe, the connecting pipe and the vent needle, and the air bag is made of rubber materials.
Still further, the surface of breather pipe has cup jointed spacing card, spacing card connects the surface at the syringe cylinder, be integrated into one piece structure between spacing card and the syringe cylinder, spacing card is the U font, and spacing card can be used for carrying out the position restriction to the breather pipe, prevents that the breather pipe from taking place scattered.
(3) Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
when the liquid medicine is sucked by the injector, the connecting pipe drives the sealing ring to be inserted into the butt joint cylinder through the butt joint column, so that the position of the sealing ring can be fixed through the friction force between the sealing ring and the butt joint cylinder, the position of the ventilation needle head can be fixed, after the syringe needle head and the ventilation needle head are inserted into the rubber plug of the medicine bottle, the air bag is extruded to extrude clean air in the interior into the medicine bottle through the ventilation pipe, the connecting pipe and the ventilation needle head, the air pressure in the medicine bottle is increased, the liquid medicine can be extruded into the syringe cylinder through the syringe needle head, and pollution of the liquid medicine caused by the fact that unclean air enters the interior of the medicine bottle can be reduced conveniently.
Drawings
FIG. 1 is a schematic diagram of a front view of an embodiment of the apparatus of the present utility model;
FIG. 2 is a schematic view of a syringe according to an embodiment of the device of the present utility model;
FIG. 3 is an exploded view of the main structure of one embodiment of the device of the present utility model;
FIG. 4 is a schematic view of a gas injection pressurizing mechanism of an embodiment of the apparatus of the present utility model;
fig. 5 is a schematic view of the structure of fig. 4 a according to an embodiment of the apparatus of the present utility model.
The marks in the drawings are: 1. a syringe barrel; 2. a syringe push rod; 3. a syringe needle; 4. a butt joint barrel; 5. butt-joint columns; 6. a seal ring; 7. a connecting pipe; 8. a vent needle; 9. a vent pipe; 10. an air bag; 11. and a limit clamp.
Detailed Description
The structure of the automatic injector is shown in fig. 1-5, the automatic injector comprises an injector needle cylinder 1, an injector push rod 2 and an injector needle head 3, the injector push rod 2 is inserted into the inner wall of the injector needle cylinder 1, the injector needle head 3 is sleeved at the end part of the injector needle cylinder 1, and an air injection pressurizing mechanism is arranged on the surface of the injector needle cylinder 1.
Wherein, the gas injection pressurizing mechanism includes butt joint section of thick bamboo 4, butt joint post 5, sealing washer 6, connecting pipe 7, needle 8 of ventilating, breather pipe 9, gasbag 10 and spacing card 11, butt joint section of thick bamboo 4 connects the tip at syringe cylinder 1, structure as an organic whole between syringe cylinder 1 and the butt joint section of thick bamboo 4, butt joint post 5 has been pegged graft to the inside of butt joint section of thick bamboo 4, sealing washer 6 has been cup jointed on the surface of butt joint post 5, sealing washer 6 is provided with three at the surface of butt joint post 5, sealing washer 6 is the rubber material, butt joint post 5 passes through sealing washer 6 and forms interference connection with the inner wall of butt joint section of thick bamboo 4, the top of butt joint post 5 is connected with connecting pipe 7, the end connection of connecting pipe 7 has needle 8 of ventilating.
In addition, the side surface of connecting pipe 7 is connected with breather pipe 9, and breather pipe 9's end connection has gasbag 10, constitutes communication structure between gasbag 10, breather pipe 9, connecting pipe 7 and the syringe needle 8 that ventilates, and gasbag 10 is the rubber material, and limit card 11 has been cup jointed on the surface of breather pipe 9, and limit card 11 is connected on the surface of syringe cylinder 1, is an integral structure between limit card 11 and the syringe cylinder 1, and limit card 11 is the U font.
Working principle: when the device of the technical scheme is used, when the syringe is used for sucking liquid medicine, firstly, the syringe needle 3 and the ventilation needle 8 are inserted into the rubber plug of the medicine bottle, then the air bag 10 can be extruded, clean air in the air bag 10 can enter the air pipe 9 when being extruded, the air in the air pipe 9 can enter the medicine bottle through the connecting pipe 7 and the ventilation needle 8, so that the air pressure in the medicine bottle can be increased, the liquid medicine can be extruded by the air pressure, and the liquid medicine can enter the syringe needle 1 through the syringe needle 3, so that pollution of the liquid medicine caused by the fact that unclean air enters the medicine bottle can be reduced conveniently.
All technical features in the embodiment can be freely combined according to actual needs.
The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.
Claims (5)
1. The utility model provides an automatic injector, this syringe includes syringe needle (1), syringe push rod (2) and syringe needle (3), its characterized in that, syringe push rod (2) have been pegged graft to the inner wall of syringe needle (1), syringe needle (3) have been cup jointed to the tip of syringe needle (1), the surface of syringe needle (1) is provided with gas injection pressurizing mechanism, gas injection pressurizing mechanism includes butt joint section of thick bamboo (4), butt joint post (5), sealing washer (6), connecting pipe (7), syringe needle (8) ventilate, breather pipe (9), gasbag (10) and spacing card (11), butt joint section of thick bamboo (4) connect the tip at syringe needle (1), be integrated into one piece structure between syringe needle (1) and the butt joint section of thick bamboo (4), the inside grafting of butt joint post (5) has cup jointed sealing washer (6) of butt joint post (5), the top of butt joint post (5) is connected with connecting pipe (7), the end connection of connecting pipe (7) has syringe needle (8).
2. An automatic injector according to claim 1, characterized in that the sealing ring (6) is provided with three groups on the surface of the docking post (5), the sealing ring (6) is made of rubber, and the docking post (5) is in interference connection with the inner wall of the docking cylinder (4) through the sealing ring (6).
3. An autoinjector according to claim 2, wherein a vent tube (9) is connected to a side surface of the connecting tube (7), and an air bag (10) is connected to an end of the vent tube (9).
4. An autoinjector according to claim 3, wherein the communication structure is formed between the balloon (10), vent tube (9), connecting tube (7) and vent needle (8), the balloon (10) being of rubber material.
5. An automatic injector according to claim 4, characterized in that the surface of the vent pipe (9) is sleeved with a limit card (11), the limit card (11) is connected to the surface of the injector needle cylinder (1), the limit card (11) and the injector needle cylinder (1) are of an integral structure, and the limit card (11) is U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321189202.6U CN220070347U (en) | 2023-05-16 | 2023-05-16 | Automatic injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321189202.6U CN220070347U (en) | 2023-05-16 | 2023-05-16 | Automatic injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220070347U true CN220070347U (en) | 2023-11-24 |
Family
ID=88824226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321189202.6U Active CN220070347U (en) | 2023-05-16 | 2023-05-16 | Automatic injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220070347U (en) |
-
2023
- 2023-05-16 CN CN202321189202.6U patent/CN220070347U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |