CN112426588A - Multifunctional medical gas-liquid pot - Google Patents
Multifunctional medical gas-liquid pot Download PDFInfo
- Publication number
- CN112426588A CN112426588A CN202011370641.8A CN202011370641A CN112426588A CN 112426588 A CN112426588 A CN 112426588A CN 202011370641 A CN202011370641 A CN 202011370641A CN 112426588 A CN112426588 A CN 112426588A
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- Prior art keywords
- flow control
- infusion
- pipe
- cup
- volume
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Classifications
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- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
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- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical auxiliary instruments, in particular to a multifunctional medical gas-liquid kettle, which comprises an infusion system and a flow control system, wherein the change of the infusion flow is controlled by utilizing the difference between the buoyancy generated by regulating and controlling the liquid volume of infusion in the infusion system and the constant gravity of a flow control block in the flow control system. The flow controller can control the flow in the infusion process, and the liquid outlet can be automatically closed after the infusion is finished, so that the serious consequence that air enters to generate blood backflow due to non-instant needle pulling after the liquid in the infusion transfusion bottle is completely infused is fundamentally avoided; and if the gas transmission action is carried out in the opposite direction, the effect of automatic closing after stopping gas supply can be achieved, and the device has multiple functions.
Description
Technical Field
The invention relates to the technical field of medical auxiliary instruments, in particular to a medical infusion or air suction device.
Background
Infusion, oxygen absorption, hydrogen absorption and the like are common medical means in the medical treatment and treatment process of the modern society. Infusion is a way that a patient seeking medical treatment needs to take a medical treatment in a bottle hanging infusion mode under the guidance of medical staff in order to solve some diseases of the body or supplement some needed substances in the body. However, the treatment method of infusion by hanging bottles is a relatively long diagnosis and treatment process, generally, the infusion treatment course of one hanging bottle needs two to three hours, and more time is needed for the old, children and patients with serious diseases. One condition that often appears is, the tasteless infusion course of treatment of suggestive makes by the person of infusing drowsiness, needs to have accompanying person to observe the liquid condition of infusion transfusion bottle memory to inform medical personnel to pull out the needle action, in order to avoid causing because the liquid in the infusion transfusion bottle is lost the back, because pull out the needle promptly, lead to the air admission, thereby produce the serious consequence of blood refluence. Moreover, the prior kettle body for transfusion has single function and can not meet the dual purposes of transfusion and air suction.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multifunctional medical gas-liquid kettle.
The invention is realized by the following technical scheme: a multifunctional medical liquid pot comprises a transfusion system and a flow control system, and the change of the transfusion flow is controlled by utilizing the difference between the buoyancy generated by regulating the liquid amount of transfusion in the transfusion system and the constant gravity of a flow control block in the flow control system.
The infusion system consists of an inlet pipe, an infusion channel and a volume cup, wherein the inlet pipe is communicated with the infusion channel, and an outlet of the infusion channel is arranged in the volume cup; the top of the cup body of the volume cup is sealed, the top of the volume cup is provided with an exhaust pipe, and the bottom of the volume cup is provided with an outlet pipe.
The flow control system is composed of a flow control rod, a flow control block and a thread block, one end of the flow control rod is inserted into a blind hole of the flow control block in the volume cup, the other end of the flow control rod is in threaded connection with the thread block on the top of the cup body of the volume cup, and an adjusting knob is fixedly connected to the flow control rod protruding out of the top of the volume cup.
The infusion channel arranged in the flow control rod is in butt joint with the inlet pipe, and the outlet of the infusion channel faces the volume cup.
The flow control block is conical with a large upper part and a small lower part.
The inner side of the outlet pipe of the volume cup is provided with a groove which is matched with the cone shape at the bottom of the flow control block in the upward direction.
And the exhaust pipe is provided with a vent cover.
And a nano fine filter screen is arranged at the inlet of the inlet pipe.
The specific gravity of the flow control block per unit volume is smaller than that of water.
The automatic control system for medical infusion and gas includes infusion system and flow control system, and utilizes the difference between the buoyancy produced by regulating and controlling the quantity of infusion liquid in the infusion system and the constant gravity of flow control block in the flow control system to control the change of infusion flow.
Infusion system constitute by inlet tube, transfer line, blast pipe and capacity cup, the inlet tube is hollow body with the transfer line, the one end of blast pipe is the blind end, the one end of inlet tube is a whole with the blind end three fixed connection of transfer line one end and blast pipe, inlet tube and transfer line intercommunication, the other end of transfer line and the other end of blast pipe are sealing connection respectively on the capacity cup, set firmly the exhaust hole that the opening outwards on the pipe wall of blast pipe, the top seal of capacity cup, the bottom of capacity cup is the drain pipe.
The flow control system is composed of a flow control rod, a flow control block and a thread block, one end of the flow control rod is inserted into a blind hole of the flow control block in the volume cup, the other end of the flow control rod is in threaded connection with the thread block on the top of the cup body of the volume cup, and an adjusting knob is fixedly connected to the flow control rod protruding out of the top of the volume cup.
The flow control block is conical with a large upper part and a small lower part.
A groove matched with the cone at the bottom of the flow control block is arranged in the upward direction in the liquid outlet pipe of the volume cup.
And the exhaust hole on the pipe wall of the exhaust pipe is provided with an air hole cover.
And a nano fine filter screen is arranged at the inlet of the inlet pipe.
The specific gravity of the flow control block per unit volume is smaller than that of water.
The flow controller can control the flow in the infusion process, and the liquid outlet can be automatically closed after the infusion is finished, so that the serious consequence that air enters to generate blood backflow due to non-instant needle pulling after the liquid in the infusion transfusion bottle is completely infused is fundamentally avoided; and if the gas transmission action is carried out in the opposite direction, the effect of automatic closing after stopping gas supply can be achieved, and the device has multiple functions.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a reverse gas delivery structure of the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of the present invention;
FIG. 4 is a schematic view of a reverse gas delivery structure according to another embodiment of the present invention.
The specific implementation mode is as follows:
referring to the attached figure 1, the multifunctional medical gas-liquid kettle comprises an infusion system 1 and a flow control system 2, and the change of the infusion flow is controlled by utilizing the difference between the buoyancy generated by regulating and controlling the infusion liquid amount in the infusion system 1 and the constant gravity of a flow control block in the flow control system 2.
The transfusion system 1 consists of an inlet pipe 11, a transfusion channel 12 and a volume cup 13, wherein the inlet pipe 11 is communicated with the transfusion channel 12, and the outlet of the transfusion channel 12 is arranged in the volume cup 13; the top of the cup body of the capacity cup 13 is sealed, the top of the capacity cup 13 is provided with an exhaust pipe 131, and the bottom of the capacity cup 13 is provided with an outlet pipe 132.
The flow control system 2 comprises a flow control rod 21, a flow control block 22 and a thread block 23, wherein one end of the flow control rod 21 is inserted into the blind hole 221 of the flow control block 22 in the volume cup 13, the other end of the flow control rod 21 is in threaded connection with the thread block 23 on the top of the cup body of the volume cup 13, and the flow control rod 21 protruding out of the top of the volume cup 13 is fixedly connected with an adjusting knob 211.
The infusion channel 12 arranged in the flow control rod 21 is butted with the inlet pipe 11, and the outlet of the infusion channel 12 faces the measuring cup 13.
The flow control block 22 is conical with a large top and a small bottom.
The outlet pipe 132 of the volume cup 13 is provided with a groove 1321 which is matched with the conical shape at the bottom of the flow control block 22 in the upward direction.
The exhaust pipe 131 is provided with a vent cover.
The inlet of the inlet pipe 11 is provided with a nanometer fine filter screen 3.
The specific gravity per unit volume of the flow control block 22 is less than the specific gravity per unit volume of water.
When the invention is used for transfusion, firstly, a user adjusts the adjusting knob 211 on the flow control rod 21 to enable the flow control rod 21 to rotate on the thread block 23 on the top of the volume cup 13, namely, adjusts the distance that the flow control rod 21 moves up and down in the blind hole 321 of the flow control block 32, at this time, the flow control block 32 is located in the groove 1321 above the outlet pipe 132 at the bottom of the volume cup 13, and the outlet pipe 132 is blocked; then the liquid enters from the inlet pipe 11 and flows into the cup body 21 through the transfusion channel 12; the liquid is gradually added in the cup body 21, and the air squeezed in the volume cup 13 is exhausted from the exhaust hole of the exhaust pipe 131; since the specific gravity per unit volume of the flow control block 22 is smaller than that of water, when the gravity of the flow control block 22 is smaller than the buoyancy generated by the gradually increasing liquid volume, the flow control block 22 floats up in the space reserved when the flow control lever 21 is adjusted to move up and down in the blind hole 221 thereof, the groove 1321 above the outlet pipe 132 is opened, and the liquid flows out of the outlet pipe 132;
if the liquid fed from the inlet pipe 11 is reduced or stopped, that is, the liquid entering into the volume cup 13 is reduced or stopped, and the liquid flowing out from the outlet pipe 132 is reduced continuously, so that the buoyancy generated by the gradually reduced liquid volume in the volume cup 13 is smaller than the gravity of the flow control block 22, under the action of the gravity, the flow control block 22 will sink in the space reserved when the flow control rod 21 is adjusted to move up and down in the blind hole 221 until the conical shape at the bottom of the flow control block 22 is completely matched with the groove 1321 above the outlet pipe 132, the outlet pipe 132 is closed, and the liquid feeding channel is cut off.
Referring to fig. 2, if the present invention is used for gas input, such as oxygen inhalation and hydrogen inhalation, the distance of the flow control rod 21 moving up and down in the blind hole 221 of the flow control block 22 is adjusted; when the external input air pressure is greater than the gravity of the flow control block 22, the flow control block 22 will rise in the space reserved when the flow control rod 21 is adjusted to move up and down in the blind hole 221, the groove 1321 above the outlet pipe 132 is opened, the gas flows in from the outlet pipe 132, the gas hole cover of the exhaust pipe 131 is closed, and the gas is discharged from the inlet pipe 11 after passing through the infusion channel 12;
when the air supply is stopped and the external input air pressure is smaller than the gravity of the flow control block 22, the flow control block 22 will descend in the space reserved when the flow control rod 21 is adjusted to move up and down in the blind hole 221, the groove 1321 above the outlet pipe 132 is blocked by the conical shape at the bottom of the flow control block 22, and the air supply channel is cut off.
The inlet of the inlet pipe is provided with a nanometer fine filter 4 to ensure that the fixed impurities in the inlet pipe can be filtered when the input liquid and gas are input.
Referring to fig. 3, when the present invention is applied to infusion, firstly, a user adjusts the adjusting knob 211 on the flow control rod 21 to rotate the thread block 23 on the top of the volume cup 14 of the flow control rod 21, i.e. adjusts the distance that the flow control rod 21 moves up and down in the blind hole 221 of the flow control block 22, at this time, the flow control block 22 is located in the groove 1411 above the liquid outlet pipe 141 at the bottom of the volume cup 14, and the liquid outlet pipe 141 is blocked; then the liquid enters from the inlet pipe 11 and flows into the measuring cup 14 through the infusion pipe 12; the liquid is gradually added into the volume cup 14, and the air squeezed in the volume cup 14 is exhausted from the exhaust hole 132 on the pipe wall of the exhaust pipe 13; because the specific gravity of the flow control block 22 per unit volume is smaller than that of water, when the gravity of the flow control block 22 is smaller than the buoyancy generated by the gradually increased liquid volume, the flow control block 22 floats upwards in the space reserved when the flow control rod 21 is adjusted to move up and down in the blind hole 221, the groove 1411 above the liquid outlet pipe 141 is opened, and the liquid flows out of the liquid outlet pipe 141;
if the liquid fed from inlet pipe 11 is reduced or stopped, that is, the liquid entering into volume cup 14 is reduced or stopped, and the liquid flowing out from liquid outlet pipe 141 is reduced continuously, so that the buoyancy generated by the gradually reduced liquid volume in volume cup 14 is smaller than the gravity of flow control block 22, flow control block 22 will sink in the space reserved when adjusting flow control rod 21 moves up and down in blind hole 221 until the conical shape at the bottom of flow control block 22 is completely matched with groove 1411 above liquid outlet pipe 141, liquid outlet pipe 141 is closed, and the liquid feeding channel is cut off.
Referring to fig. 4, if the present invention is used for gas input, the distance of the flow control rod 21 moving up and down in the blind hole 221 of the flow control block 22 is adjusted similarly; when the external input air pressure is greater than the gravity of the flow control block 22, the flow control block 22 will rise in the space reserved when the flow control rod 21 is adjusted to move up and down in the blind hole 221, the groove 1411 above the liquid outlet pipe 141 is opened, the gas flows in from the liquid outlet pipe 141, at this time, the gas hole cover of the gas outlet hole 132 on the pipe wall of the exhaust pipe 13 is closed, and the gas is exhausted from the inlet pipe 11 after passing through the infusion pipe 12;
if the air supply is stopped and the external input air pressure is smaller than the gravity of the flow control block 22, the flow control block 22 will descend in the space reserved when the flow control rod 21 is adjusted to move up and down in the blind hole 221, the groove 1411 above the liquid outlet pipe 141 is blocked by the conical shape at the bottom of the flow control block 22, and the air transmission channel is cut off.
The inlet of the inlet pipe 11 is provided with a nanometer fine filter 3 to ensure that the fixed impurities in the inner part can be filtered when the liquid and the gas are input.
Claims (10)
1. Multi-functional medical gas liquid kettle, its characterized in that: comprises an infusion system and a flow control system, and the change of the infusion flow is controlled by utilizing the difference between the buoyancy generated by regulating and controlling the liquid volume of the infusion in the infusion system and the constant gravity of a flow control block in the flow control system.
2. The multifunctional medical electrohydraulic pot of claim 1, further comprising: the infusion system consists of an inlet pipe, an infusion channel and a volume cup, wherein the inlet pipe is communicated with the infusion channel, and an outlet of the infusion channel is arranged in the volume cup; the top of the cup body of the volume cup is sealed, the top of the volume cup is provided with an exhaust pipe, and the bottom of the volume cup is provided with an outlet pipe.
3. The multifunctional medical electrohydraulic pot of claim 1, further comprising: the flow control system is composed of a flow control rod, a flow control block and a thread block, one end of the flow control rod is inserted into a blind hole of the flow control block in the volume cup, the other end of the flow control rod is in threaded connection with the thread block on the top of the cup body of the volume cup, and an adjusting knob is fixedly connected to the flow control rod protruding out of the top of the volume cup.
4. The multi-functional medical aerosol pot of claim 3, wherein: the infusion channel arranged in the flow control rod is in butt joint with the inlet pipe, and the outlet of the infusion channel faces the volume cup.
5. The multi-functional medical aerosol pot of claim 3, wherein: the flow control block is conical with a large upper part and a small lower part; the inner side of the outlet pipe of the volume cup is provided with a groove which is matched with the cone shape at the bottom of the flow control block in the upward direction.
6. The multi-functional medical aerosol pot of claim 2, wherein: and the exhaust pipe is provided with a vent cover.
7. The multi-functional medical aerosol pot of claim 3, wherein: the specific gravity of the flow control block per unit volume is smaller than that of water.
8. The multifunctional medical electrohydraulic pot of claim 1, further comprising: the infusion system comprises an inlet pipe, an infusion pipe, an exhaust pipe and a volume cup, wherein the inlet pipe and the infusion pipe are hollow pipes, one end of the exhaust pipe is a closed end, one end of the inlet pipe, one end of the infusion pipe and the closed end of the exhaust pipe are fixedly connected into a whole, the inlet pipe is communicated with the infusion pipe, the other end of the infusion pipe and the other end of the exhaust pipe are respectively connected to the volume cup in a sealing manner, exhaust holes with outward openings are fixedly formed in the pipe wall of the exhaust pipe, the top of the volume cup is sealed, and a liquid outlet pipe is arranged at the bottom of; the flow control system is composed of a flow control rod, a flow control block and a thread block, one end of the flow control rod is inserted into a blind hole of the flow control block in the volume cup, the other end of the flow control rod is in threaded connection with the thread block on the top of the cup body of the volume cup, and an adjusting knob is fixedly connected to the flow control rod protruding out of the top of the volume cup.
9. The multi-functional medical aerosol pot of claim 8, wherein: the flow control block is conical with a large upper part and a small lower part, and the specific gravity of the unit volume of the flow control block is smaller than that of water; a groove matched with the cone at the bottom of the flow control block is arranged in the upward direction in the liquid outlet pipe of the volume cup.
10. The multi-functional medical aerosol pot of claim 8, wherein: and the exhaust hole on the pipe wall of the exhaust pipe is provided with an air hole cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011370641.8A CN112426588A (en) | 2020-11-30 | 2020-11-30 | Multifunctional medical gas-liquid pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011370641.8A CN112426588A (en) | 2020-11-30 | 2020-11-30 | Multifunctional medical gas-liquid pot |
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| Publication Number | Publication Date |
|---|---|
| CN112426588A true CN112426588A (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011370641.8A Pending CN112426588A (en) | 2020-11-30 | 2020-11-30 | Multifunctional medical gas-liquid pot |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267376A (en) * | 1985-09-16 | 1987-03-27 | オキシメトリツクス インコ−ポレ−テツド | Liquid flow regulator |
| DE4319115A1 (en) * | 1993-06-09 | 1994-12-15 | Axon Neue Medizintechnik Gmbh | Mechanical, automatic outflow preventing device for infusion drip chamber |
| KR200255567Y1 (en) * | 2001-09-05 | 2001-12-13 | 장진우 | Apparatus to privent blood counter current for intra venous set |
| CN202501052U (en) * | 2012-01-11 | 2012-10-24 | 铜陵新创流体科技有限公司 | Sphere-shaped double-adjustment check valve |
| CN103520808A (en) * | 2012-07-07 | 2014-01-22 | 祁健 | Disposable safety infusion set |
| CN203577032U (en) * | 2013-10-08 | 2014-05-07 | 成都市新津事丰医疗器械有限公司 | Automatic liquid stopping precise filter bag type infusion set |
| CN105561448A (en) * | 2016-01-06 | 2016-05-11 | 日日新知识产权投资温州有限公司 | Liquid stopper |
| KR101726233B1 (en) * | 2016-04-27 | 2017-04-12 | 이상운 | Air shut-off equipment for medical infusion set |
| CN208011034U (en) * | 2018-03-21 | 2018-10-26 | 济南中能电力工程有限公司 | A kind of adjustable ball-cock assembly of flow |
| CN208591398U (en) * | 2018-02-26 | 2019-03-12 | 苏州九龙医院有限公司 | A kind of safe transfusion tube of delivery room anti-blood back |
| CN209245376U (en) * | 2018-12-11 | 2019-08-13 | 天津市滨海华义阀门有限公司 | A kind of check-valves of controllable fluid flow direction |
| CN209340569U (en) * | 2018-12-26 | 2019-09-03 | 大连高阀泵阀有限公司 | A kind of multifunctional ship screw down nonreturn valve |
| CN210050336U (en) * | 2019-06-04 | 2020-02-11 | 满明机电(苏州)有限公司 | One-way valve for air conditioner |
| CN111420157A (en) * | 2019-08-27 | 2020-07-17 | 苏州科技城医院 | Blood-return-preventing blood-coagulation infusion apparatus |
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2020
- 2020-11-30 CN CN202011370641.8A patent/CN112426588A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267376A (en) * | 1985-09-16 | 1987-03-27 | オキシメトリツクス インコ−ポレ−テツド | Liquid flow regulator |
| DE4319115A1 (en) * | 1993-06-09 | 1994-12-15 | Axon Neue Medizintechnik Gmbh | Mechanical, automatic outflow preventing device for infusion drip chamber |
| KR200255567Y1 (en) * | 2001-09-05 | 2001-12-13 | 장진우 | Apparatus to privent blood counter current for intra venous set |
| CN202501052U (en) * | 2012-01-11 | 2012-10-24 | 铜陵新创流体科技有限公司 | Sphere-shaped double-adjustment check valve |
| CN103520808A (en) * | 2012-07-07 | 2014-01-22 | 祁健 | Disposable safety infusion set |
| CN203577032U (en) * | 2013-10-08 | 2014-05-07 | 成都市新津事丰医疗器械有限公司 | Automatic liquid stopping precise filter bag type infusion set |
| CN105561448A (en) * | 2016-01-06 | 2016-05-11 | 日日新知识产权投资温州有限公司 | Liquid stopper |
| KR101726233B1 (en) * | 2016-04-27 | 2017-04-12 | 이상운 | Air shut-off equipment for medical infusion set |
| CN208591398U (en) * | 2018-02-26 | 2019-03-12 | 苏州九龙医院有限公司 | A kind of safe transfusion tube of delivery room anti-blood back |
| CN208011034U (en) * | 2018-03-21 | 2018-10-26 | 济南中能电力工程有限公司 | A kind of adjustable ball-cock assembly of flow |
| CN209245376U (en) * | 2018-12-11 | 2019-08-13 | 天津市滨海华义阀门有限公司 | A kind of check-valves of controllable fluid flow direction |
| CN209340569U (en) * | 2018-12-26 | 2019-09-03 | 大连高阀泵阀有限公司 | A kind of multifunctional ship screw down nonreturn valve |
| CN210050336U (en) * | 2019-06-04 | 2020-02-11 | 满明机电(苏州)有限公司 | One-way valve for air conditioner |
| CN111420157A (en) * | 2019-08-27 | 2020-07-17 | 苏州科技城医院 | Blood-return-preventing blood-coagulation infusion apparatus |
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