CN111870777B - Rotary type device and method for quickly switching injection liquid medicine - Google Patents
Rotary type device and method for quickly switching injection liquid medicine Download PDFInfo
- Publication number
- CN111870777B CN111870777B CN202010700681.8A CN202010700681A CN111870777B CN 111870777 B CN111870777 B CN 111870777B CN 202010700681 A CN202010700681 A CN 202010700681A CN 111870777 B CN111870777 B CN 111870777B
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- liquid
- switching
- liquid medicine
- medicine
- turntable
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- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 title claims abstract description 135
- 239000003814 drug Substances 0.000 title claims abstract description 84
- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 8
- 230000001954 sterilising effect Effects 0.000 claims description 8
- 229940079593 drug Drugs 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 abstract description 4
- 238000011109 contamination Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000002255 vaccination Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000010999 medical injection Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3114—Filling or refilling
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本发明提出一种旋转式注射药液快速切换装置及方法，包括壳体、药液切换机构、药液通断机构和控制机构，通过药液切换机构旋转改变药筒出口位置对流出药液类型进行更换；通过开药液通断机构对出液管通路进行通断控制，从而调整出液管的连通或封堵，出液管路封堵时，可打开壳盖补充药液、旋转药筒切换药液；出液管路连通时，所需药液从出液管路流出，为注射提供原料。本发明提高药液更换效率的同时，降低了药液在人工更换过程中被污染的风险，大大减小了操作人员的工作量。
The present invention provides a rotary fast switching device and method for injecting medicinal liquid, which includes a casing, a medicinal liquid switching mechanism, a medicinal liquid on-off mechanism and a control mechanism. To replace; the on-off control of the liquid outlet pipe passage is carried out through the opening and closing mechanism of the liquid medicine, so as to adjust the connection or blockage of the liquid outlet pipe. Switch the liquid medicine; when the liquid outlet pipeline is connected, the required liquid medicine flows out from the liquid outlet pipeline to provide raw materials for injection. The invention improves the replacement efficiency of the medicinal solution, reduces the risk of contamination of the medicinal solution during the manual replacement process, and greatly reduces the workload of the operator.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a rotary type device and a rotary type method for quickly switching injection liquid medicines.
Background
With the development of medical injection technology, needleless injection technology is increasingly applied to clinical treatment and vaccination. The needle-free injection device adopts a high-pressure jet principle, and directly enters body tissues in a mode of ejecting high-pressure jet at a superfine high speed in a straight line without a needle. When the needle-free injection technology is used for animal vaccination, different medicaments are required to be adopted according to different animal types, ages and injection positions, the manual replacement of the medicaments results in the reduction of the vaccination efficiency and the increase of the medicament pollution risk. In medical clinical treatment, infusion patients often need to inject a plurality of liquid medicines; when the liquid medicine needs to be replaced, medical personnel puncture rubber plugs at openings of different liquid medicine containers by using a bottle plug puncture outfit to replace the liquid medicine, the medical personnel are usually required to control time and replace the liquid medicine in time by adopting the method, and once the number of infusion people is large, the medical personnel can not replace the liquid medicine for patients in time, so that the problems of venous blood backflow and the like can be caused.
In conclusion, in the prior art, the liquid medicine needs to be replaced manually, so that the efficiency of vaccination and clinical treatment is reduced, and the workload of operators and the risk of medicine pollution are increased. Therefore, it is desirable to provide a device for rapidly switching injection solutions that does not require frequent manual replacement of solutions to overcome the drawbacks of the prior art.
Disclosure of Invention
The invention aims to solve the technical problems and provides a rotary type device and a method for quickly switching injection liquid medicines, so that the injection liquid medicines can be accurately, safely and quickly switched in the treatment and vaccination processes, the injection efficiency is improved, and the pollution of the liquid medicines is prevented.
The technical scheme adopted by the invention for solving the technical problems is as follows: a rotary type device for quickly switching injection liquid medicine is characterized by comprising a shell, a liquid medicine switching mechanism, a liquid medicine on-off mechanism and a control mechanism, wherein the shell is of a cylindrical barrel structure, an object placing plate is arranged on the inner wall of the shell, a central through hole and an on-off mounting hole are formed in the object placing plate, and a liquid outlet pipe penetrates through one side, corresponding to the on-off mounting hole, of a bottom plate of the shell;
the liquid medicine switching mechanism comprises a medicine cylinder and a switching driving motor, the medicine cylinder is arranged on the object placing plate, a switching rotating shaft is arranged at the center of the bottom of the medicine cylinder, the switching rotating shaft penetrates through the central through hole to be connected with the switching driving motor, a plurality of liquid storage cavities are separated from the interior of the medicine cylinder through a plurality of partition plates, a liquid outlet hole is formed in the bottom plate of each liquid storage cavity, and a sterilization filtering membrane is arranged at the top of each liquid storage cavity;
the liquid medicine on-off mechanism comprises an on-off turntable and an on-off driving motor, the on-off turntable is arranged in the on-off mounting hole, the on-off turntable is provided with an on-off hole, the center of the bottom of the on-off turntable is provided with an on-off rotating shaft, and the on-off rotating shaft is connected with the on-off driving motor;
the control mechanism comprises a controller and a control panel, the controller is respectively connected with the switching drive motor and the on-off drive motor through signal wires, the control panel is embedded in the lower portion of the shell, and an on-off button and a switching button are arranged on the control panel.
According to the scheme, the plurality of partition plates are uniformly arranged at intervals by taking the axial lead of the cartridge as a reference, and the liquid storage cavity is a fan-shaped column barrel.
According to the scheme, the outer wall of the shell is longitudinally provided with the light-shading scale window.
According to the scheme, the light-proof scale window is made of brown glass.
According to the scheme, the center of the top of the shell is provided with a through hole, a straight-through one-way valve is arranged in the through hole, and the bottom of the straight-through one-way valve is provided with a sterilization filtering membrane.
According to the scheme, the degerming filter membrane is formed by laminating polytetrafluoroethylene fibers and high-density polyethylene or is a mixed cellulose ester filter membrane.
According to the scheme, the shell body is composed of a shell body and a shell cover, and a sealing ring is arranged at the joint of the shell body and the shell cover.
According to the scheme, the sealing piece is arranged on the contact surface of the on-off turntable and the pipe orifice of the liquid outlet pipe, and the sealing piece is a sealing ring arranged on the pipe orifice of the liquid outlet pipe or a sealing piece paved on the bottom surface of the on-off turntable.
According to the scheme, the sealing element is made of PPL high polymer materials.
A rotary type quick switching method for injecting liquid medicine is characterized by comprising the following steps:
s1) the on-off holes on the on-off turntable and the pipe orifice of the liquid outlet pipe are positioned at staggered initial positions, and liquid medicine is respectively added into a plurality of liquid storage cavities in the medicine cartridge according to needs and enters the liquid storage cavities through the sterilizing filter;
s2), starting a controller, pressing a corresponding liquid medicine switching button on a control panel as required, starting a switching driving motor, waiting for the corresponding liquid storage cavity to rotate to a specified position, and checking the volume of liquid medicine in the liquid storage cavity through a light-proof dial on the shell body;
s3) pressing the liquid medicine switching button on the control panel, starting the switching drive motor, driving the cartridge to rotate, and rotating the liquid storage cavity filled with the liquid medicine to be injected to a specified position, wherein the liquid outlet hole of the liquid storage cavity corresponds to the pipe orifice of the liquid outlet pipe;
s4) pressing the on-off button on the control panel, starting the on-off driving motor to drive the on-off turntable to rotate, so that the on-off turntable rotates to an open position, at the moment, the on-off hole on the on-off turntable corresponds to the pipe orifice of the liquid outlet pipe, the liquid outlet pipe is communicated, and the required liquid medicine flows out from the liquid outlet pipe;
s5) pressing the on-off button on the control panel, starting the on-off driving motor to drive the on-off rotating disc to rotate, so that the on-off rotating disc rotates to a closed position, the on-off hole on the on-off rotating disc and the pipe orifice of the liquid outlet pipe are positioned at staggered initial positions, and the liquid outlet pipe is blocked.
The invention has the beneficial effects that: the rotary type device and the method for quickly switching the injection liquid medicine are provided, the liquid medicine does not need to be replaced by manually pulling and inserting the infusion tube, the liquid medicine replacement efficiency is improved, meanwhile, the risk that the liquid medicine is polluted in the manual replacement process is reduced, and the workload of operators is greatly reduced.
Drawings
FIG. 1 is a front view of one embodiment of the present invention.
Fig. 2 is a cross-sectional view of one embodiment of the present invention.
Fig. 3 is a top view of one embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1-3, a rotary device for rapidly switching injection liquid medicine comprises a casing, a liquid medicine switching mechanism, a liquid medicine on-off mechanism and a control mechanism, wherein the casing is of a cylindrical structure and comprises a casing body 1 and a casing cover 2, a sealing ring is arranged at the joint of the casing body and the casing cover, an object placing plate 3 is arranged on the inner wall of the casing, a central through hole and an on-off mounting hole are formed in the object placing plate, and a liquid outlet pipe 4 is arranged on one side of a bottom plate of the casing corresponding to the on-off mounting hole in a penetrating manner.
The liquid medicine switching mechanism includes cartridge case 5 and switches driving motor 6, and on the thing board was placed in to the cartridge case, cartridge case bottom center was equipped with switching pivot 7, and the switching pivot passes central through-hole and switches driving motor and links to each other, and the cartridge case is inside to separate the several stock solution chamber through several baffle 8, and the several baffle uses cartridge case axial lead to set up as the even interval of benchmark, and the stock solution chamber is fan-shaped column casing, can adjust fan-shaped central angle according to the condition among the practical application.
Stock solution chamber bottom plate is equipped with out liquid hole 9, and the top is equipped with degerming filtration membrane 10, and degerming filtration membrane is polytetrafluoroethylene fiber and high density polyethylene lamination and constitutes, or for mixing the cellulose ester filtration membrane, prevents to supply impurity and the microorganism entering cartridge case pollution liquid medicine in liquid medicine and the injection in-process air through setting up degerming filtration membrane.
The liquid medicine on-off mechanism comprises an on-off turntable 11 and an on-off driving motor 12, the on-off turntable is arranged in the on-off mounting hole, an on-off hole 13 is formed in the on-off turntable, an on-off rotating shaft 14 is arranged in the center of the bottom of the on-off turntable, and the on-off rotating shaft is connected with the on-off driving motor.
The control mechanism comprises a controller 15 and a control panel 16, the controller is respectively connected with the switching drive motor and the on-off drive motor through signal lines 17, the control panel is embedded at the lower part of the shell, and an on-off button and a switching button are arranged on the control panel.
The outer wall of the shell is longitudinally provided with a light-proof scale window 18 which is made of brown glass and is used for observing the volume of the injection liquid medicine and preventing the photosensitive medicine from being denatured or degraded in the device to influence the medicine effect.
The center of the top of the shell is provided with a through hole, a straight-through one-way valve 19 is arranged in the through hole and used for balancing the air pressure in the cartridge, and the bottom of the straight-through one-way valve is provided with a degerming filter membrane which prevents bacteria in the air from entering the cartridge.
The sealing piece is arranged on the contact surface of the on-off turntable and the pipe orifice of the liquid outlet pipe, the sealing piece is a sealing ring arranged on the pipe orifice of the liquid outlet pipe or a sealing piece paved on the bottom surface of the on-off turntable, the sealing piece is made of PPL high polymer materials, and the sealing piece is arranged to prevent liquid medicine from leaking.
A rotary type quick switching method for injection liquid medicine comprises the following steps:
s1) the on-off holes on the on-off turntable and the pipe orifice of the liquid outlet pipe are positioned at staggered initial positions, and liquid medicine is respectively added into a plurality of liquid storage cavities in the medicine cartridge according to needs and enters the liquid storage cavities through the sterilizing filter;
s2), starting a controller, pressing a corresponding liquid medicine switching button on a control panel as required, starting a switching driving motor, waiting for the corresponding liquid storage cavity to rotate to a specified position, and checking the volume of liquid medicine in the liquid storage cavity through a light-proof dial on the shell body;
s3) pressing the liquid medicine switching button on the control panel, starting the switching drive motor, driving the cartridge to rotate, and rotating the liquid storage cavity filled with the liquid medicine to be injected to a specified position, wherein the liquid outlet hole of the liquid storage cavity corresponds to the pipe orifice of the liquid outlet pipe;
s4) pressing the on-off button on the control panel, starting the on-off driving motor to drive the on-off turntable to rotate, so that the on-off turntable rotates to an open position, at the moment, the on-off hole on the on-off turntable corresponds to the pipe orifice of the liquid outlet pipe, the liquid outlet pipe is communicated, and the required liquid medicine flows out from the liquid outlet pipe;
s5) pressing the on-off button on the control panel, starting the on-off driving motor to drive the on-off rotating disc to rotate, so that the on-off rotating disc rotates to a closed position, the on-off hole on the on-off rotating disc and the pipe orifice of the liquid outlet pipe are positioned at staggered initial positions, and the liquid outlet pipe is blocked.
Claims (8)
1. A rotary type device for quickly switching injection liquid medicine is characterized by comprising a shell, a liquid medicine switching mechanism, a liquid medicine on-off mechanism and a control mechanism, wherein the shell is of a cylindrical barrel structure, an object placing plate is arranged on the inner wall of the shell, a central through hole and an on-off mounting hole are formed in the object placing plate, and a liquid outlet pipe penetrates through one side, corresponding to the on-off mounting hole, of a bottom plate of the shell;
the liquid medicine switching mechanism comprises a medicine cylinder and a switching driving motor, the medicine cylinder is arranged on the object placing plate, a switching rotating shaft is arranged at the center of the bottom of the medicine cylinder, the switching rotating shaft penetrates through the central through hole to be connected with the switching driving motor, the interior of the medicine cylinder is divided into at least three liquid storage cavities through a plurality of partition plates, a liquid outlet hole is formed in the bottom plate of each liquid storage cavity, and a sterilization filtering membrane is arranged at the top of each liquid storage cavity;
the liquid medicine on-off mechanism comprises an on-off turntable and an on-off driving motor, the on-off turntable is arranged in the on-off mounting hole, the on-off turntable is provided with an on-off hole, the center of the bottom of the on-off turntable is provided with an on-off rotating shaft, the on-off rotating shaft is connected with the on-off driving motor, a sealing element is arranged on the contact surface of the on-off turntable and the pipe orifice of the liquid outlet pipe, and the sealing element is a sealing ring arranged on the pipe orifice of the liquid outlet pipe or a sealing sheet paved on the bottom surface of the on-off turntable;
the control mechanism comprises a controller and a control panel, the controller is respectively connected with the switching drive motor and the on-off drive motor through signal wires, the control panel is embedded at the lower part of the shell, and an on-off button and a switching button are arranged on the control panel;
the center of the top of the shell is provided with a through hole, a straight-through one-way valve is arranged in the through hole, and a sterilization filtering membrane is arranged at the bottom of the straight-through one-way valve.
2. A rotary device for quickly switching liquid medicine injection according to claim 1, wherein said plurality of partition plates are uniformly spaced with respect to the axial line of the medicine container, and said liquid storage chamber is a fan-shaped cylinder.
3. The rotary device for rapidly switching liquid medicines for injection as claimed in claim 1, wherein the outer wall of the housing is longitudinally provided with a light-proof calibration window.
4. The rotary fast switching device for injecting liquid medicine as claimed in claim 3, wherein said light-shielding graduated window is made of brown glass.
5. A rotary device for quickly switching liquid medicine injection according to claim 1, wherein said sterilization filter membrane is made of polytetrafluoroethylene fiber and high density polyethylene laminated together, or is a mixed cellulose ester filter membrane.
6. A rotary device for quickly switching liquid medicine injection according to claim 1 or 4, wherein the housing is composed of a housing body and a housing cover, and a sealing ring is disposed at the joint of the housing body and the housing cover.
7. A rotary device for quickly switching liquid medicine injection as claimed in claim 6, wherein said sealing member is made of PPL polymer material.
8. A rotary type quick switching method for injecting liquid medicine is characterized by comprising the following steps:
s1) the on-off holes on the on-off turntable and the pipe orifice of the liquid outlet pipe are positioned at staggered initial positions, and liquid medicine is respectively added into a plurality of liquid storage cavities in the medicine cartridge according to needs and enters the liquid storage cavities through the sterilizing filter;
s2), starting a controller, pressing a corresponding liquid medicine switching button on a control panel as required, starting a switching driving motor, waiting for the corresponding liquid storage cavity to rotate to a specified position, and checking the volume of liquid medicine in the liquid storage cavity through a light-proof dial on the shell body;
s3) pressing the liquid medicine switching button on the control panel, starting the switching drive motor, driving the cartridge to rotate, and rotating the liquid storage cavity filled with the liquid medicine to be injected to a specified position, wherein the liquid outlet hole of the liquid storage cavity corresponds to the pipe orifice of the liquid outlet pipe;
s4) pressing the on-off button on the control panel, starting the on-off driving motor to drive the on-off turntable to rotate, so that the on-off turntable rotates to an open position, at the moment, the on-off hole on the on-off turntable corresponds to the pipe orifice of the liquid outlet pipe, the liquid outlet pipe is communicated, and the required liquid medicine flows out from the liquid outlet pipe;
s5) pressing the on-off button on the control panel, starting the on-off driving motor to drive the on-off rotating disc to rotate, so that the on-off rotating disc rotates to a closed position, the on-off hole on the on-off rotating disc and the pipe orifice of the liquid outlet pipe are positioned at staggered initial positions, and the liquid outlet pipe is blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700681.8A CN111870777B (en) | 2020-07-20 | 2020-07-20 | Rotary type device and method for quickly switching injection liquid medicine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700681.8A CN111870777B (en) | 2020-07-20 | 2020-07-20 | Rotary type device and method for quickly switching injection liquid medicine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111870777A CN111870777A (en) | 2020-11-03 |
| CN111870777B true CN111870777B (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010700681.8A Expired - Fee Related CN111870777B (en) | 2020-07-20 | 2020-07-20 | Rotary type device and method for quickly switching injection liquid medicine |
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| Country | Link |
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| CN (1) | CN111870777B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118987418B (en) * | 2024-08-26 | 2025-03-21 | 江苏汉博医疗器械有限公司 | A breathing mask for spraying medicine and oxygen supply for respiratory medicine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362235A (en) * | 2016-09-18 | 2017-02-01 | 中国人民解放军总医院 | Automatic infusion set based on multi-pass structure |
| CN110507881A (en) * | 2019-09-04 | 2019-11-29 | 四川大学华西医院 | A kind of multifunctional insulin injection pen |
| CN111065344A (en) * | 2017-09-08 | 2020-04-24 | 株式会社三养生物制药 | Sealant injector assembly |
-
2020
- 2020-07-20 CN CN202010700681.8A patent/CN111870777B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362235A (en) * | 2016-09-18 | 2017-02-01 | 中国人民解放军总医院 | Automatic infusion set based on multi-pass structure |
| CN111065344A (en) * | 2017-09-08 | 2020-04-24 | 株式会社三养生物制药 | Sealant injector assembly |
| CN110507881A (en) * | 2019-09-04 | 2019-11-29 | 四川大学华西医院 | A kind of multifunctional insulin injection pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111870777A (en) | 2020-11-03 |
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Granted publication date: 20211214 |