CN108421117B - Rotary valve and deep vein irrigation device comprising a rotary valve - Google Patents
Rotary valve and deep vein irrigation device comprising a rotary valve Download PDFInfo
- Publication number
- CN108421117B CN108421117B CN201810305284.3A CN201810305284A CN108421117B CN 108421117 B CN108421117 B CN 108421117B CN 201810305284 A CN201810305284 A CN 201810305284A CN 108421117 B CN108421117 B CN 108421117B
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- valve body
- arc
- rotary
- bypass valve
- shaped ring
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- 210000003462 vein Anatomy 0.000 title claims abstract description 18
- 230000002262 irrigation Effects 0.000 title description 6
- 238000003973 irrigation Methods 0.000 title description 6
- 238000005192 partition Methods 0.000 claims abstract description 12
- 238000011010 flushing procedure Methods 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims 5
- 239000007788 liquid Substances 0.000 abstract description 42
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 238000001802 infusion Methods 0.000 description 14
- 238000005406 washing Methods 0.000 description 6
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- -1 and at this moment Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- 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
- A61M25/00—Catheters; Hollow probes
-
- 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
- A61M2005/1401—Functional features
- A61M2005/1403—Flushing or purging
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Vascular Medicine (AREA)
- Multiple-Way Valves (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a rotary valve, which comprises a main valve body and a bypass valve body, wherein the wall of the main valve body is provided with a first through hole and a second through hole, a valve ball, a spring, a partition block and a limiting part are arranged in the main valve body, the valve ball is arranged between the partition block and the limiting part, the partition block is provided with a third through hole, two ends of the spring are respectively abutted against the limiting part and the valve ball, the spring supports the valve ball to be clamped in the third through hole, a cavity is arranged in the bypass valve body, one end of the main valve body penetrates into the bypass valve body from top to bottom and then enters the cavity, and then penetrates out of the bypass valve body, the bypass valve body comprises a first bypass valve body and a second bypass valve body, the first bypass valve body and the second bypass valve body are separated by a rotary switch, the rotary switch is sleeved on the main valve body, the rotary switch comprises a first arc-shaped ring, and a second arc-shaped ring is tightly abutted between the outer wall of the main valve body and the inner wall of the bypass valve body. The rotary valve provided by the invention realizes the control of the unidirectional and bidirectional flow of liquid. The present invention also provides a deep vein flush device including a rotary valve.
Description
Technical Field
The invention belongs to the field of valves for fluid control, and particularly relates to a rotary valve and a deep vein flushing device comprising the rotary valve.
Background
In actual clinical deep venous transfusion, in order to prevent blockage of a transfusion pipeline, backflow of blood and the like, a deep venous flushing operation needs to be performed on a patient every four hours. The current operation flow is as follows: taking a brand new pulse empty needle one before flushing a tube each time, inserting a bypass pipeline of a transfusion pipeline, then closing a pipe clamp on the transfusion pipeline, operating the pulse transfusion device to suck a certain amount of flushing liquid, closing a connecting channel from a transfusion tube to a transfusion container after the suction is finished, opening the pipe clamp connected with the end of a patient, operating the pulse needle to push the flushing liquid into the blood vessel of the patient, taking the pulse empty needle after the operation is finished, opening the pipeline connected with the transfusion bottle, and starting normal transfusion.
A completely new pulse syringe is needed for each deep vein flushing, and the cost is high. The operation is complex, time-consuming and labor-consuming, and a new syringe needs to be connected again each time the deep vein irrigation is carried out. The new syringe for deep vein flushing is contacted with air every time, is easy to be polluted, and can not completely realize aseptic operation.
Disclosure of Invention
The invention aims to provide a rotary valve with a reasonable structure, which realizes the control of the unidirectional and bidirectional flow of liquid. The invention also provides a deep vein flushing device, which realizes that the syringe is not required to be disassembled and can be repeatedly used; when the flushing is carried out each time, the connection work of the injector is not needed, so that the working strength is reduced; the contact with the outside air is prevented, and the pollution of the injector is completely avoided.
The invention provides a rotary valve, which comprises a main valve body and a bypass valve body, wherein the wall of the main valve body is provided with a first through hole and a second through hole, a valve ball, a spring, a partition block and a limiting part are arranged in the main valve body, the valve ball is arranged between the partition block and the limiting part, the partition block is provided with a third through hole, the diameter of the third through hole is smaller than that of the valve ball, two ends of the spring are respectively abutted against the limiting part and the valve ball, the spring supports the valve ball to be clamped in the third through hole,
the bypass valve body comprises a first bypass valve body and a second bypass valve body, the length direction of the first bypass valve body connected with the second bypass valve body is consistent with the penetrating direction of one end of the main valve body, the first bypass valve body and the second bypass valve body are separated by a rotary switch, the rotary switch is sleeved on the main valve body and comprises a first arc-shaped ring, the first arc-shaped ring is positioned between the outer wall of the main valve body and the inner wall of the bypass valve body, a second arc-shaped ring is tightly abutted between the outer wall of the main valve body and the inner wall of the bypass valve body, the width of the first arc-shaped ring is equal to that of the second arc-shaped ring, the first arc-shaped ring is abutted against the second arc-shaped ring up and down, and the sum of the arc lengths of the inner edges of the first arc-shaped ring and the second arc-shaped ring is larger than the outer circumference of the main valve body, the inner edge arc length of the first arc-shaped ring and the inner edge arc length of the second arc-shaped ring are both smaller than the outer circumference length of the main valve body, the rotary switch comprises an inner ring which is sleeved on the main valve body and is vertically connected with the first arc-shaped ring, the rotary switch also comprises an outer ring which is connected with the first arc-shaped ring through a connecting ring and is vertical to the connecting ring, the upper end and the lower end of the connecting ring are respectively abutted against the first bypass valve body and the second bypass valve body, and a sealing ring is arranged between the connecting ring and the second bypass valve body,
the first through hole and the second through hole are respectively arranged at two ends of the rotary switch, and the first through hole and the second through hole can enable the inner cavity of the main valve body to be communicated with the cavity of the bypass valve body.
When the unidirectional flow control of liquid is realized, the rotary switch is adjusted, so that the overlapping part of the first arc-shaped ring and the second arc-shaped ring is reduced, and the two ends of the first arc-shaped ring are crossed with the two ends of the second arc-shaped ring. That is to say, the space between main valve body outer wall and the bypass valve body inner wall is separated into two spaces by first arc ring and second arc ring completely, and liquid can only pass through from the third through-hole. And, because spring support valve ball joint is in third through-hole, liquid can only flow to the lower extreme from the upper end.
When the bidirectional flow control of liquid is realized, the rotary switch is adjusted to increase the overlapping part of the first arc-shaped ring and the second arc-shaped ring, so that one end of the two ends of the first arc-shaped ring is intersected with one end of the second arc-shaped ring, and the other end of the two ends of the first arc-shaped ring is not intersected with the other end of the second arc-shaped ring. That is to say, the space between main valve body outer wall and the bypass valve body inner wall is a space, and not totally separated into two spaces by first arc ring and second arc ring, liquid can pass through from the third through-hole, also can pass through from first through-hole and second through-hole.
Under the normal condition of liquid pressure, the spring is in compression state, and the elasticity of spring supports the valve ball, makes the valve ball joint support tightly in third through-hole, cuts off the piece and is used for obstructing liquid, and at this moment, liquid can not pass through from the third through-hole. The fact that liquid can pass through the third through hole means that the pressure of the liquid pushes the valve ball to move, so that the spring is compressed, and the liquid can enter the end of the spring from the third through hole.
The invention also provides a deep vein flushing device which comprises the rotary valves, wherein the number of the rotary valves is two, the deep vein flushing device also comprises a transfusion tube and a sealing bag, two ends of the transfusion tube are respectively provided with a transfusion bottle and a needle head, the two rotary valves are arranged on the transfusion tube, a transfusion tube section between the two rotary valves is connected with a branch tube, the branch tube is connected with a tube opening of the syringe, and the sealing bag seals a piston rod of the syringe in a cylinder body of the syringe.
When the deep venous flushing operation is carried out, the two rotary valves are rotated to switch the two rotary valves to a one-way circulation state, namely, the liquid can flow from the infusion bottle to the two rotary valves and the needle head. The liquid in the infusion bottle flows to the branch pipe, and the syringe is operated to suck the flushing liquid. The syringe does not cause backflow of liquid and blood at the patient end during extraction, so that the flow regulator does not need to be closed. After the extraction is completed, the operation injector pushes the flushing liquid, at the moment, the connection end of the operation injector and the infusion container is in a single-pass state, the flushing liquid cannot be pushed into the infusion bottle when the liquid is pushed, and the flushing liquid is directly pushed into the blood vessel of a patient to complete the flushing.
The injector is not required to be disassembled and can be repeatedly used; when the flushing is carried out each time, the connection work of the injector is not needed, so that the working strength is reduced; the contact with the outside air is prevented, and the pollution of the injector is completely avoided.
Further, deep vein washing unit still includes the flow rate regulator, two rotary valves are first rotary valve and second rotary valve respectively, the second rotary valve is closer to the syringe needle for first rotary valve, the flow rate regulator is located the transfer line between second rotary valve and the syringe needle.
Due to the adoption of the technical scheme, the rotary valve provided by the invention has the advantage of reasonable structure, and the control of the unidirectional and bidirectional flow of liquid is realized. The invention also provides a deep vein flushing device, which realizes that the syringe is not required to be disassembled and can be repeatedly used; when the flushing is carried out each time, the connection work of the injector is not needed, so that the working strength is reduced; the contact with the outside air is prevented, and the pollution of the injector is completely avoided.
Drawings
FIG. 1 is a partial cross-sectional view of a rotary valve.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural diagram of the deep vein irrigation device.
In the figure: 1. a main valve body; 2. a bypass valve body; 3. a first through hole; 4. a second through hole; 5. a valve ball; 6. a spring; 7. a blocking block; 8. a limiting part; 9. a third through hole; 10. a cavity; 11. a first bypass valve body; 12. a second bypass valve body; 13. a rotary switch; 14. a first arcuate ring; 15. a second arcuate ring; 16. an inner ring; 17. an outer ring; 18. a connecting ring; 19. a seal ring; 20. a transfusion tube; 21. sealing the bag; 22. an infusion bottle; 23. a needle head; 24. a branch pipe; 25. an injector; 26. a piston rod; 27. a barrel; 28. a flow rate regulator; 29. a first rotary valve; 30. second rotary valve
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention provides a rotary valve, which comprises a main valve body 1 and a bypass valve body 2, wherein the wall of the main valve body 1 is provided with a first through hole 3 and a second through hole 4, a valve ball 5, a spring 6, a partition block 7 and a limiting part 8 are arranged in the main valve body 1, the valve ball 5 is arranged between the partition block 7 and the limiting part 8, the partition block 7 is provided with a third through hole 9, the diameter of the third through hole 9 is smaller than that of the valve ball 5, two ends of the spring 6 are respectively abutted against the limiting part 8 and the valve ball 5, the spring 6 supports the valve ball 5 to be clamped in the third through hole 9,
a cavity 10 is arranged in the bypass valve body 2, one end of the main valve body 1 penetrates into the bypass valve body 2 from top to bottom and then enters the cavity 10, and then penetrates out of the bypass valve body 2, the bypass valve body 2 comprises a first bypass valve body 11 and a second bypass valve body 12, the length direction of the first bypass valve body 11 connected with the second bypass valve body 12 is consistent with the penetrating direction of one end of the main valve body 1, the first bypass valve body 11 and the second bypass valve body 12 are separated by a rotary switch 13, the rotary switch 13 is sleeved on the main valve body 1, the rotary switch 13 comprises a first arc-shaped ring 14, the first arc-shaped ring 14 is positioned between the outer wall of the main valve body 1 and the inner wall of the bypass valve body 2, a second arc-shaped ring 15 is tightly abutted between the outer wall of the main valve body 1 and the inner wall of the bypass valve body 2, the width of the first arc-shaped ring 14 is equal to the width of the second arc-shaped ring 15, and the first arc-shaped ring 14 is abutted up and down, the sum of the inner edge arc lengths of the first arc-shaped ring 14 and the second arc-shaped ring 15 is larger than the outer circumference of the main valve body 1, the inner edge arc lengths of the first arc-shaped ring 14 and the second arc-shaped ring 15 are both smaller than the outer circumference of the main valve body 1,
the first through hole 3 and the second through hole 4 are respectively arranged at two ends of the rotary switch 13, and the first through hole 3 and the second through hole 4 can enable the inner cavity of the main valve body 1 to be communicated with the cavity 10 of the bypass valve body 2.
When the unidirectional flow control of the liquid is realized, the rotary switch 13 is adjusted to reduce the overlapping part of the first arc-shaped ring 14 and the second arc-shaped ring 15, so that the two ends of the first arc-shaped ring 14 are intersected with the two ends of the second arc-shaped ring 15. That is, the space between the outer wall of the main valve body 1 and the inner wall of the bypass valve body 2 is completely blocked by the first arc-shaped ring 14 and the second arc-shaped ring 15 into two spaces, and the liquid can only pass through the third through hole 9. And, because the spring 6 supports the valve ball 5 to be clamped in the third through hole 9, the liquid can only flow from the upper end to the lower end.
When the bidirectional flow control of the liquid is realized, the rotary switch 13 is adjusted to increase the overlapping part of the first arc-shaped ring 14 and the second arc-shaped ring 15, so that one end of the two ends of the first arc-shaped ring 14 is intersected with one end of the second arc-shaped ring 15, and the other end of the two ends of the first arc-shaped ring 14 is not intersected with the other end of the second arc-shaped ring 15. That is to say, the space between the outer wall of the main valve body 1 and the inner wall of the bypass valve body 2 is a space, and is not completely blocked by the first arc-shaped ring 14 and the second arc-shaped ring 15 to form two spaces, and the liquid can pass through the third through hole 9 and also can pass through the first through hole 3 and the second through hole 4.
Under the normal condition of liquid pressure, spring 6 is in compression state, and the elasticity of spring 6 supports valve ball 5, makes valve ball 5 joint support tightly in third through-hole 9, cuts off piece 7 and is used for the separation liquid, and at this moment, liquid can not pass through from third through-hole 9. By the fact that liquid can pass through the third through hole 9, the pressure of the liquid pushes the valve ball 5 to move, so that the spring 6 is compressed, and the liquid can enter the end of the spring 6 from the third through hole 9.
As shown in fig. 1, the stopper 8 stops the lower end of the spring 6.
As shown in fig. 1 and 2, the rotary switch 13 includes an inner ring 16, the inner ring 16 is sleeved on the main valve body 1, and the inner ring 16 is vertically connected to the first arc-shaped ring 14.
As shown in fig. 1 and 2, the rotary switch 13 further includes an outer ring 17, the outer ring 17 is connected to the first arc-shaped ring 14 through a connecting ring 18, the outer ring 17 is perpendicular to the connecting ring 18, and upper and lower ends of the connecting ring 18 are respectively abutted against the first bypass valve body 11 and the second bypass valve body 12.
As shown in fig. 1 and 2, a sealing ring 19 is disposed between the connecting ring 18 and the second bypass valve body 12 to enhance the sealing effect.
As shown in fig. 3, the present invention further provides a deep vein irrigation device, which comprises two rotary valves, an infusion tube 20 and a sealing bag 21, wherein an infusion bottle 22 and a needle 23 are respectively arranged at two ends of the infusion tube 20, the two rotary valves are arranged on the infusion tube 20, a branch tube 24 is connected to a section of the infusion tube 20 between the two rotary valves, the branch tube 24 is connected to a nozzle of an injector 25, and a piston rod 26 of the injector 25 is sealed in a cylinder 27 of the injector 25 by the sealing bag 21.
When the deep venous flushing operation is carried out, the two rotary valves are rotated to switch the two rotary valves to a one-way circulation state, namely, the liquid can flow from the infusion bottle 22 to the two rotary valves and the needle 23. The liquid in the transfusion bottle 22 flows to the branch pipe 24, and the syringe 25 is operated to suck the washing liquid. The syringe 25 does not cause backflow of fluid and blood from the patient during withdrawal, so it is not necessary to close the flow regulator. After the drawing is completed, the syringe 25 is operated to push the washing liquid, and at this time, since the connection end with the infusion container is in a single-pass state, the washing liquid is not pushed into the infusion bottle 22 when the liquid is pushed in, and the washing liquid is directly pushed into the blood vessel of the patient, thereby completing the washing.
The invention realizes that the injector 25 is used repeatedly without disassembly; when the flushing is carried out each time, the connection work of the injector 25 is not needed, so that the working strength is reduced; contact with the outside air is prevented and contamination of the syringe 25 is completely avoided.
As shown in fig. 3, the deep vein irrigation apparatus further comprises a flow rate regulator 28, the two rotary valves are a first rotary valve 29 and a second rotary valve 30, the second rotary valve 30 is closer to the needle 23 than the first rotary valve 29, and the flow rate regulator 28 is located on the infusion tube 20 between the second rotary valve 30 and the needle 23.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (3)
1. The rotary valve is characterized by comprising a main valve body and a bypass valve body, wherein a first through hole and a second through hole are formed in the wall of the main valve body, a valve ball, a spring, a partition block and a limiting part are arranged in the main valve body, the valve ball is arranged between the partition block and the limiting part, the partition block is provided with a third through hole, the diameter of the third through hole is smaller than that of the valve ball, two ends of the spring are respectively abutted against the limiting part and the valve ball, the spring supports the valve ball to be clamped in the third through hole,
the bypass valve body comprises a first bypass valve body and a second bypass valve body, the length direction of the first bypass valve body connected with the second bypass valve body is consistent with the penetrating direction of one end of the main valve body, the first bypass valve body and the second bypass valve body are separated by a rotary switch, the rotary switch is sleeved on the main valve body and comprises a first arc-shaped ring, the first arc-shaped ring is positioned between the outer wall of the main valve body and the inner wall of the bypass valve body, a second arc-shaped ring is tightly abutted between the outer wall of the main valve body and the inner wall of the bypass valve body, the width of the first arc-shaped ring is equal to that of the second arc-shaped ring, the first arc-shaped ring is abutted against the second arc-shaped ring up and down, and the sum of the arc lengths of the inner edges of the first arc-shaped ring and the second arc-shaped ring is larger than the outer circumference of the main valve body, the inner edge arc length of the first arc-shaped ring and the inner edge arc length of the second arc-shaped ring are both smaller than the outer circumference length of the main valve body, the rotary switch comprises an inner ring which is sleeved on the main valve body and is vertically connected with the first arc-shaped ring, the rotary switch also comprises an outer ring which is connected with the first arc-shaped ring through a connecting ring and is vertical to the connecting ring, the upper end and the lower end of the connecting ring are respectively abutted against the first bypass valve body and the second bypass valve body, and a sealing ring is arranged between the connecting ring and the second bypass valve body,
the first through hole and the second through hole are respectively arranged at two ends of the rotary switch, and the first through hole and the second through hole can enable the inner cavity of the main valve body to be communicated with the cavity of the bypass valve body.
2. The deep vein flushing device is characterized by comprising the rotary valves in claim 1, the number of the rotary valves is two, the deep vein flushing device further comprises a perfusion tube and a sealing bag, a perfusion bottle and a needle head are respectively arranged at two ends of the perfusion tube, the two rotary valves are arranged on the perfusion tube, a perfusion tube section between the two rotary valves is connected with a branch tube, the branch tube is connected with a tube opening of a syringe, and a piston rod of the syringe is sealed in a cylinder body of the syringe by the sealing bag.
3. The deep vein flush device according to claim 2, further comprising a flow rate regulator, said two rotary valves being a first rotary valve and a second rotary valve, respectively, said second rotary valve being closer to the needle than the first rotary valve, said flow rate regulator being located on the tubing between the second rotary valve and the needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305284.3A CN108421117B (en) | 2018-03-30 | 2018-03-30 | Rotary valve and deep vein irrigation device comprising a rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305284.3A CN108421117B (en) | 2018-03-30 | 2018-03-30 | Rotary valve and deep vein irrigation device comprising a rotary valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108421117A CN108421117A (en) | 2018-08-21 |
| CN108421117B true CN108421117B (en) | 2022-02-11 |
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ID=63160363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810305284.3A Expired - Fee Related CN108421117B (en) | 2018-03-30 | 2018-03-30 | Rotary valve and deep vein irrigation device comprising a rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108421117B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821540A (en) * | 1994-07-04 | 1996-01-23 | Yazaki Corp | Rotary valve |
| CN104061346A (en) * | 2014-06-13 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Duplex type hydraulic control one-way valve |
| CN106030172A (en) * | 2014-01-13 | 2016-10-12 | 美国轮轴制造公司 | Variable flow valve |
| CN107514493A (en) * | 2017-08-24 | 2017-12-26 | 虞瑞浩 | A kind of automatic closing appliance and reaction unit |
| CN107684644A (en) * | 2016-08-04 | 2018-02-13 | 上海金塔医用器材有限公司 | It is pre- to rush formula flushing syringe infusion pump combination bag |
| CN208726424U (en) * | 2018-03-30 | 2019-04-12 | 重庆市肿瘤研究所 | Rotary valve and Deep venou flusher including rotary valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2200451Y (en) * | 1994-05-02 | 1995-06-14 | 杨卿文 | Vagina washing apparatus for woman |
| US8631822B2 (en) * | 2010-07-06 | 2014-01-21 | National Oilwell Varco, L.P. | Dual-flow valve and swivel |
| CN203400212U (en) * | 2013-08-16 | 2014-01-22 | 魏志明 | Operation sealing flushing device |
| CN205031631U (en) * | 2015-08-28 | 2016-02-17 | 苏州新区明基高分子医疗器械有限公司 | Douche bag with heating function |
-
2018
- 2018-03-30 CN CN201810305284.3A patent/CN108421117B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821540A (en) * | 1994-07-04 | 1996-01-23 | Yazaki Corp | Rotary valve |
| CN106030172A (en) * | 2014-01-13 | 2016-10-12 | 美国轮轴制造公司 | Variable flow valve |
| CN104061346A (en) * | 2014-06-13 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Duplex type hydraulic control one-way valve |
| CN107684644A (en) * | 2016-08-04 | 2018-02-13 | 上海金塔医用器材有限公司 | It is pre- to rush formula flushing syringe infusion pump combination bag |
| CN107514493A (en) * | 2017-08-24 | 2017-12-26 | 虞瑞浩 | A kind of automatic closing appliance and reaction unit |
| CN208726424U (en) * | 2018-03-30 | 2019-04-12 | 重庆市肿瘤研究所 | Rotary valve and Deep venou flusher including rotary valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108421117A (en) | 2018-08-21 |
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