CN113357403A - Medical electromagnetic three-way valve - Google Patents
Medical electromagnetic three-way valveDownload PDFInfo
- Publication number
- CN113357403A CN113357403ACN202110566078.XACN202110566078ACN113357403ACN 113357403 ACN113357403 ACN 113357403ACN 202110566078 ACN202110566078 ACN 202110566078ACN 113357403 ACN113357403 ACN 113357403A
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- CN
- China
- Prior art keywords
- valve
- valve body
- way valve
- valve core
- motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/223—Multiway valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M2039/229—Stopcocks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Technical Field
The invention relates to the technical field of medical and sanitary instruments, in particular to a medical electromagnetic three-way valve and a semi-automatic control method for realizing the working state of the medical electromagnetic three-way valve.
Background
The medical three-way valve is widely applied to clinical operation and is mainly applied to the scene of switching passages when infusion treatment and pressure monitoring are needed. And at present clinical lumbar puncture art in-process, the doctor need be in the syringe needle and prick back replacement part because of different operation purposes such as cerebrospinal fluid pressure measurement, cerebrospinal fluid collection, medicine injection, is unfavorable for operating efficiency's improvement, also brings certain infection risk simultaneously.
The invention mainly aims at the inconvenience that doctors in lumbar puncture surgery need to assemble temporary parts, and provides a design and use method of a novel medical electromagnetic three-way valve. The valve core of the three-way valve is connected with the sleeve of the motor through a positioning bolt, and when an electric signal is transmitted to the motor and drives the sleeve to rotate, the valve core of the three-way valve can be driven to rotate, so that semi-automatic switching of a flow channel is realized; the valve body outer shell, the valve body inner shell, the three interfaces and the valve core are of an integrated structure, after the valve body outer shell, the valve body inner shell, the three interfaces and the valve core are used, the positioning bolt for fixing the valve core and the motor sleeve is unscrewed, the integrated structure can be taken down to be discarded, the valve body inner shell, the valve core and the motor sleeve are treated as disposable medical equipment, and pollution caused by repeated use is avoided.
Disclosure of Invention
In view of the above analysis, the invention aims to provide a medical three-way valve which can realize semi-automatic switching by a computer in two functions of puncturing to extract cerebrospinal fluid and monitoring the needle insertion pressure, and can convert functions after successful puncturing is monitored, so that the complicated step of replacing devices in an operation is omitted, the error rate of a doctor during operation is reduced, and the success rate of the operation is improved.
The purpose of the invention is mainly realized by the following technical scheme:
in the technical scheme of the invention, the novel medical electromagnetic three-way valve comprises: the valve comprises a motor, a positioning bolt, a valve body outer shell, a valve body inner shell, a valve core and three connectors.
In the technical scheme of the invention, the motor assembly consists of a motor, a frequency converter and a PLC, and the rotation angle of the motor assembly is controlled by a vector control method. The rotating shaft of the motor is directly connected with the valve core through a sleeve and a positioning bolt, and the working state of the three-way valve is determined by the accurate control of the rotating angle of the motor by a computer.
In the technical scheme of the invention, the whole three-way valve mainly comprises a valve body outer shell, a valve body inner shell and a valve core. The valve core is made of polyethylene material, and the inner shell and the outer shell of the valve body are made of polyurethane material. The valve body inner shell and the valve body outer shell are connected in a matched mode, the possibility of liquid leakage is reduced, the valve core is assembled in the valve body inner shell, and the rotating shaft is connected with the control system through the fixing bolt, so that the valve core is driven to rotate.
In the technical scheme of the invention, the valve core, the valve body inner shell and the valve body outer shell are respectively provided with three liquid input and output ports which are respectively called as a positive transfusion port, a left transfusion port and a right transfusion port. When the valve body inner shell and the valve body outer shell are assembled, the three ports are respectively aligned and do not move relatively, the lower boss of the valve core is matched with the counter sink seat of the valve body outer shell, the rotating shaft of the valve core is ensured to be the same as the valve body, and the phenomenon of blocking is avoided. The motor drives the valve core to rotate, so that the working state that two of the front opening, the left opening and the right opening are the same and the other hole is closed or three holes are communicated can be realized. The valve body outer shell and the valve core hole are not processed with threads during manufacturing, and the valve body inner shell is thicker than the valve body outer shell during thickness design, and the hole is processed with threads for connecting with an external infusion interface.
In the technical scheme of the invention, the external infusion interface with thread installation is connected with an injector or an infusion tube to realize the exchange of liquid, the top end of the infusion interface is provided with threads, and is connected with the inner shell of the valve body by threads, so that the possibility of liquid leakage is reduced. The length of the infusion interface thread is basically the same as that of the valve body inner shell, but the top end of the infusion interface slightly protrudes due to the radian of the valve body inner shell, namely, the installation of the infusion interface can not generate transition interference on the movement of the inner valve core, but when the motor has no rotation instruction, namely, the valve core keeps a static working state, the infusion interface can play a limiting role on the valve core, and under the interference of external force of torque provided by the motor, such as the impact of liquid flowing on a channel, the three-way valve core can still keep a stable working position without angular deviation. The valve body shell has no screw thread, and the hole is processed into a round angle, so that the vaseline can be conveniently smeared when necessary. When not in use, the plug can be additionally arranged on the infusion interface to prevent the interior from being polluted.
In the technical scheme of the invention, the valve body, the valve core, the infusion interface and the protection cover matched with the infusion interface are integrally manufactured and packaged as a whole for delivery after assembly. The parts are produced and assembled after high-temperature sterilization, and aseptic packaging is adopted, so that the parts are used as disposable medical instruments without being assembled again in use, and bacterial pollution is avoided before use.
The using steps of the invention comprise:
s1, checking whether the aseptic package is damaged or not, and confirming each part of the medical electromagnetic three-way valve, wherein each part comprises three interfaces (7), a valve body outer shell (6), a valve body inner shell (5) and a valve core (4) which are kept in an aseptic state before use.
S2, taking out and checking the air tightness of the medical electromagnetic three-way valve, connecting the interface (7) by using the injector and compressing air, and feeling obvious resistance and restoring the air volume in the injector after the force is removed.
And S3, connecting the valve core rotating shaft (4) of the three-way valve with the sleeve (2) for the motor (1) and the positioning bolt (3).
S4, removing the protective cover of the transfusion interface (7), and connecting the interface with a puncture needle, a pressure detector, a collection tube or other medical equipment as required.
And S5, controlling and positioning the rotation angle of the motor (1) through the central control computer to keep the motor in a required working state, and recording the working rotation angle by the central control system.
S6, starting the puncture operation, keeping the working state of the puncture needle head connected with the pressure monitor by the three-way valve, and selecting the next step of function switching on the central control computer by the attending physician when the successful puncture is detected; in the operation process, the three-way valve can switch the working state change function for many times.
And S7, finishing the puncturing operation, wherein the valve body part of the medical electromagnetic three-way valve is treated as a disposable medical instrument and cannot be used again.
The technical scheme of the invention can at least realize one of the following effects:
1. the micro-arc oxidation coating device is characterized in that on the basis of the original common device, a lifting system is added through the operation of a pull rod, so that the implant can be automatically lifted after the coating in the device is finished;
2. the device is divided into four areas, each dental implant is divided into an independent coating space, four batches of uniform coatings of the dental implants can be simultaneously coated, and the problem that the existing coating device only can coat one batch of teeth at a time is low in efficiency;
3. the design of mutual separation of the areas of the device improves the operability of the experiment, provides sufficient variable experiment conditions, such as variable separation of the experiment conditions of the electrolyte, and can provide convenient research equipment for the micro-arc oxidation technology of each material;
4. the device has the advantages of flexible and simple design structure, easy disassembly and cleaning, high cleaning efficiency and capability of providing conditions for the oxidation operation of the micro-arc coating made of different materials;
5. the invention adopts an automatic liquid feeding and discharging system, can fully contact the implant with the electrolyte according to the requirement, and has convenient and simple liquid feeding and discharging operation.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic view of a medical three-way valve according to the present invention;
FIG. 2 is a schematic view of the components of the medical three-way valve of the present invention;
FIG. 3 is a front view of a medical three-way valve of the present invention;
fig. 4 is a main integrated portion of the medical three-way valve of the present invention.
Reference numerals:
1-motor, 2-motor shaft and sleeve, 3-positioning bolt, 4-valve core, 5-valve body inner shell, 6-valve body outer shell and 7 transfusion interface.
Detailed Description
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
In the description of the embodiments of the present invention, it should be noted that, since the present invention is integrated in design, unless otherwise specifically defined and limited, the term "connected" means that the parts are used as a single product after being assembled and the parts are not disassembled.
The terms "top," "bottom," "left connection port," "right connection port," and "front connection port" as used throughout the description are intended to designate spatial directions and positions relative to the front and left views and perspective views as set forth in the accompanying drawings of the specification.
As shown in fig. 1 to 4, an embodiment of the present invention provides a medical electromagnetic three-way valve, which can be controlled by an electric motor and a control system thereof, and can freely switch three operating states, including three infusion ports (7), a valve body outer shell (6), a valve body inner shell (5), a valve core (4), an electric motor (1), an electric motor rotating shaft and sleeve (2), and a positioning bolt (3). Wherein valve body inner shell (5), valve body outer shell (6) bilayer prevents the weeping, is processed threaded in valve body inner shell (5) hole and is used for being connected with infusion interface (7), and valve body outer shell (6) bottom processing has the counter sink seat to be used for cooperating with the boss of case (4) bottom processing, and restriction case rotation axis is coaxial with the valve body wall. The left connecting hole, the right connecting hole and the positive connecting hole of the valve body inner shell (5) and the valve body outer shell (6) are respectively and coaxially corresponding, and the inner wall of the outer wall of the valve body outer shell (6) of the valve body inner shell (5) is installed in a matched mode through a hole shaft to avoid liquid leakage.
The upper end of a rotating shaft of the valve core (4) used for being connected with a rotating shaft of the motor is processed with a counter bore, the rotating shaft of the valve core (4) is connected with the motor sleeve (2), a hole of the rotating shaft of the valve core (4) is kept coaxial with a threaded connecting hole on the sleeve (2), the rotating shaft is positioned by screwing in the positioning bolt (3), and the motor (1) can stably provide torque for the valve core (4). The three infusion interfaces (7) are respectively in threaded connection with the left connecting hole, the right connecting hole and the right connecting hole of the valve body inner shell (5), and the thread length of the infusion interfaces (7) is basically the same as that of the holes of the valve body inner shell (5).
The invention designs a motor control technology, the valve core (4) is switched to a working state every time the valve core rotates 90 degrees, and the control system controls the motor (1) to rotate by an angle which is integral multiple of 90 degrees, so as to drive the rotating shaft of the valve core (4) to rotate to complete the functional switching.
The use method of the embodiment of the invention comprises the following steps:
s1, checking whether the aseptic package is damaged or not, and confirming each part of the medical electromagnetic three-way valve, wherein each part comprises three interfaces (7), a valve body outer shell (6), a valve body inner shell (5) and a valve core (4) which are kept in an aseptic state before use.
S2, taking out and checking the air tightness of the medical electromagnetic three-way valve, connecting the interface (7) by using the injector and compressing air, and feeling obvious resistance and restoring the air volume in the injector after the force is removed.
And S3, connecting the valve core rotating shaft (4) of the three-way valve with the sleeve (2) for the motor (1) and the positioning bolt (3).
S4, removing the protective cover of the transfusion interface (7), and connecting the interface with a puncture needle, a pressure detector, a collection tube or other medical equipment as required.
And S5, controlling and positioning the rotation angle of the motor (1) through the central control computer to keep the motor in a required working state, and recording the working rotation angle by the central control system.
S6, starting the puncture operation, keeping the working state of the puncture needle head connected with the pressure monitor by the three-way valve, and selecting the next step of function switching on the central control computer by the attending physician when the successful puncture is detected; in the operation process, the three-way valve can switch the working state change function for many times.
And S7, finishing the puncturing operation, wherein the valve body part of the medical electromagnetic three-way valve is treated as a disposable medical instrument and cannot be used again.
In summary, the invention provides a medical electromagnetic three-way valve with a computer-controlled working configuration, which can flexibly control the state of a valve core (4) through the control of a central control computer on the rotation angle of a motor (1), thereby controlling the working state of the three-way valve.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (7)
Translated fromChinesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566078.XACN113357403A (en) | 2021-05-24 | 2021-05-24 | Medical electromagnetic three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566078.XACN113357403A (en) | 2021-05-24 | 2021-05-24 | Medical electromagnetic three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113357403Atrue CN113357403A (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110566078.XAPendingCN113357403A (en) | 2021-05-24 | 2021-05-24 | Medical electromagnetic three-way valve |
Country Status (1)
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|---|---|
| CN (1) | CN113357403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064085A (en)* | 2020-09-02 | 2020-12-11 | 四川大学 | Novel implant micro-arc oxidation device and oxidation method |
| CN114060594A (en)* | 2021-11-04 | 2022-02-18 | 张卫建 | Based on sealed solenoid valve of direct action type |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751869A (en)* | 2013-05-06 | 2014-04-30 | 北京智立医学技术股份有限公司 | Fluid conveying system for peritoneal dialysis and operating method therefor |
| CN209060173U (en)* | 2018-01-29 | 2019-07-05 | 张瑞兵 | A kind of infusion apparatus of included triple valve |
| CN211068757U (en)* | 2019-08-12 | 2020-07-24 | 西安乐析医疗科技有限公司 | Integrated multipurpose control valve for accurately controlling liquid bag pipeline of direct current motor |
| CN211536125U (en)* | 2019-11-11 | 2020-09-22 | 广州医科大学附属第一医院（广州呼吸中心） | Medical three-way joint |
| CN215763432U (en)* | 2021-05-24 | 2022-02-08 | 四川大学 | Medical electromagnetic three-way valve |
- 2021
- 2021-05-24CNCN202110566078.XApatent/CN113357403A/enactivePending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751869A (en)* | 2013-05-06 | 2014-04-30 | 北京智立医学技术股份有限公司 | Fluid conveying system for peritoneal dialysis and operating method therefor |
| CN209060173U (en)* | 2018-01-29 | 2019-07-05 | 张瑞兵 | A kind of infusion apparatus of included triple valve |
| CN211068757U (en)* | 2019-08-12 | 2020-07-24 | 西安乐析医疗科技有限公司 | Integrated multipurpose control valve for accurately controlling liquid bag pipeline of direct current motor |
| CN211536125U (en)* | 2019-11-11 | 2020-09-22 | 广州医科大学附属第一医院（广州呼吸中心） | Medical three-way joint |
| CN215763432U (en)* | 2021-05-24 | 2022-02-08 | 四川大学 | Medical electromagnetic three-way valve |
Non-Patent Citations (1)
| Title |
|---|
| 斯科特·谢尔曼等: "《临床急救医学》", vol. 1, 28 February 2019, 上海科学技术出版社, pages: 13 - 14* |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064085A (en)* | 2020-09-02 | 2020-12-11 | 四川大学 | Novel implant micro-arc oxidation device and oxidation method |
| CN114060594A (en)* | 2021-11-04 | 2022-02-18 | 张卫建 | Based on sealed solenoid valve of direct action type |
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| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20210907 |