CN111790054A - Medical one-way liquid supply valve, medical instrument and medical system - Google Patents
Medical one-way liquid supply valve, medical instrument and medical system Download PDFInfo
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- CN111790054A CN111790054A CN201910282266.2A CN201910282266A CN111790054A CN 111790054 A CN111790054 A CN 111790054A CN 201910282266 A CN201910282266 A CN 201910282266A CN 111790054 A CN111790054 A CN 111790054A
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- liquid supply
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- valve
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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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen 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
- 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
- A61M39/24—Check- or non-return 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
- A61M5/007—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 for contrast media
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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
- A61M5/1407—Infusion of two or more substances
- A61M5/1408—Infusion of two or more substances in parallel, e.g. manifolds, sequencing 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
- 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
- A61M39/24—Check- or non-return valves
- A61M2039/2493—Check valve with complex design, e.g. several inlets and outlets and several check valves in one body
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The invention discloses a medical one-way liquid supply valve, which comprises: the liquid supply pipe body and the at least two one-way valves are arranged on the pipe wall of the liquid supply pipe body; the liquid outlet of the one-way valve is communicated with the inner cavity of the liquid supply pipe body; one end of the liquid supply pipe body is provided with a liquid outlet. The medical one-way liquid supply valve provided by the embodiment of the invention realizes one-way conduction of liquid, the liquid can be only conveyed from the one-way valve to the direction of the liquid outlet of the liquid supply pipe body, and when the medical one-way liquid supply valve is used for surgical liquid supply, the medical one-way liquid supply valve is connected to other infusion structures through the liquid outlet of the liquid supply pipe body, so that the phenomenon that blood flows back to the liquid inlet side of the one-way valve of the medical one-way liquid; when different liquid supply liquids are switched, the medical one-way liquid supply valve does not need to be operated, the influence of human factors is reduced, the automation degree is high, and the liquid supply working efficiency is improved. The structure is simple and compact, the occupied space is small, the number of parts is relatively small, and the liquid supply device is suitable for surgical liquid supply with a small space area.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a medical one-way liquid supply valve, a medical instrument and a medical system.
Background
When an intravascular interventional operation is performed, a Y-shaped connector is needed to be used for connecting a surgical instrument with a guide catheter from a straight pipe of the Y-shaped connector and then entering a blood vessel. Meanwhile, two three-way valves are connected in series with a side pipe of the Y-shaped connector, and the two three-way valves are respectively connected to the high-pressure water injection device and the contrast agent injection device through a conduit. The high pressure water and the contrast agent in the high pressure water injection device and the contrast agent injection device are delivered to the blood vessel through a liquid supply channel formed by the Y-shaped connector and the two three-way valves. During operation, intracranial blood is prevented from flowing back to the liquid supply channel by conveying high-pressure water, the contrast agent enters the blood to observe the condition of blood vessels, and only one path of the liquid supply channel in the high-pressure water and the contrast agent is allowed to be communicated for liquid supply at the same time, so that the high-pressure water or the contrast agent liquid supply channel needs to be communicated by frequently operating and pulling a wrench on the three-way valve. Because manual intervention is needed for opening or closing the three-way valve, when an operator pulls a wrench of the three-way valve, the amount of liquid supplied in the infusion channel is reduced, so that the pressure in the infusion channel is reduced, the intracranial blood pressure is greater than the liquid supply pressure in the infusion channel, blood in a blood vessel flows back, and the blood flows back into a pipeline of the Y-shaped connector, even into the three-way valve or a conduit connected with the three-way valve; moreover, when the operator pulls the wrench, the operator needs to pay attention to the pulling direction, so that the condition that the conduction direction is wrong and the operation risk is caused is prevented. The mode of conducting high-pressure water or contrast agent is realized by manually operating the three-way valve, the automation degree is low, and the working efficiency is low.
Disclosure of Invention
In view of the above, the present invention has been made to provide a medical one-way liquid supply valve, a medical instrument and a medical system that overcome or at least partially solve the above problems.
In a first aspect, an embodiment of the present invention provides a medical one-way liquid supply valve, including: the liquid supply pipe body and the at least two one-way valves are arranged on the pipe wall of the liquid supply pipe body; the liquid outlet of the one-way valve is communicated with the inner cavity of the liquid supply pipe body; one end of the liquid supply pipe body is provided with a liquid outlet.
In one possible embodiment, the inner diameter of the liquid supply tube body is between 2mm and 10 mm;
the product of the distance between the at least two one-way valves on the liquid supply pipe body and the square of the inner diameter of the liquid supply pipe body is 450mm3To 12000mm3In the meantime.
In one possible embodiment, the liquid outlet of the liquid supply tube body is tapered with a decreasing diameter.
In one possible embodiment, a connecting part capable of moving along the axial direction of the liquid supply pipe body is sleeved on the pipe wall of the liquid outlet of the liquid supply pipe body; the liquid outlet is provided with a protrusion outside the pipe wall to block the tail end of the connecting part.
In one possible embodiment, the end of the liquid supply tube body remote from the liquid outlet is closed.
In one possible embodiment, the end of the liquid supply pipe body far away from the liquid outlet is provided with a liquid inlet, and a sealing cap is connected to the liquid inlet.
In one possible embodiment, the inner wall of the sealing cap is provided with an internal thread, the outer wall of the liquid inlet of the liquid supply pipe body is provided with an external thread, and the sealing cap is fixed with the liquid inlet of the liquid supply pipe body in a threaded manner.
In one possible embodiment, the liquid inlet of the liquid supply pipe body is flared with a gradually increasing diameter.
In one possible embodiment, the inner wall of the liquid inlet of the liquid supply body is at least partially frosted.
In a possible embodiment, one end of the one-way valve, which is far away from the liquid outlet, is provided with a liquid inlet, and the liquid inlet of the one-way valve is in a trumpet shape with gradually increasing diameter.
In one possible embodiment, the inner wall of the liquid inlet of the one-way valve is at least partially a frosted surface.
In a possible embodiment, the axes of the at least two one-way valves are in the same plane.
In one possible embodiment, the at least two one-way valves are integrally formed with or removably attached to the liquid supply body.
In a second aspect, embodiments of the present invention provide a medical device, including: a Y-shaped connector and a medical one-way liquid supply valve of any one of the above;
and a liquid supply pipe body of the medical one-way liquid supply valve is communicated with a side pipe of the Y-shaped connector.
In a third aspect, an embodiment of the present invention provides a medical system, including: the medical one-way liquid supply valve comprises a Y-shaped connector, at least one group of high-pressure water injection devices and at least one group of contrast agent injection devices which are connected with the medical one-way liquid supply valve, and a controller connected with the at least one group of high-pressure water injection devices and the at least one group of contrast agent injection devices;
the controller controls only one group of high-pressure water injection devices or at least one group of contrast agent injection devices to supply liquid at the same time.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
according to the medical one-way liquid supply valve provided by the embodiment of the invention, one-way conduction of a liquid conveying channel is realized through the liquid supply pipe body and the at least two one-way valves, liquid can be conveyed from a liquid inlet side of the one-way valves to a liquid outlet side of the liquid supply pipe body only, and the liquid cannot flow back to the liquid inlet side of the one-way valves in the reverse direction; the liquid supply control can be realized by controlling the start or stop of the liquid supply device during liquid supply, different liquid supply liquids can be switched without operating on the medical one-way liquid supply valve, and in the liquid supply process, manual intervention is not needed on an infusion channel formed by the medical one-way liquid supply valve, so that the influence of human factors is reduced, the automation degree is high, and the working efficiency of liquid supply is improved. In addition, the medical one-way liquid supply valve has the advantages of simple and compact structure, small occupied space and relatively few parts, and is suitable for surgical liquid supply with small space area.
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 claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a medical check fluid supply valve provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of another medical check fluid supply valve provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a medical device provided in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a medical system according to an embodiment of the present invention.
Description of reference numerals:
1 is a medical one-way liquid supply valve; 11 is a liquid supply pipe body; 12 is a one-way valve; 111 is an inner cavity of the liquid supply pipe body; 112 is a liquid outlet of the liquid supply pipe body; 113 is a connecting part of the liquid supply pipe body; 114 is a projection of the liquid supply tube body; 115 is a liquid outlet of the liquid supply pipe body; 116 is a sealing cap of the liquid supply pipe body; 121 is a liquid outlet of a one-way valve; 122 is a liquid inlet of a one-way valve; 2 is a Y-shaped connector; 3 is a controller; 4 is a high-pressure water supply device; and 5, a contrast agent supply device.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
The first embodiment is as follows:
an embodiment of the present invention provides a medical one-way liquid supply valve, as shown in fig. 1, including: a liquid supply pipe body 11, at least two one-way valves 12 arranged on the pipe wall of the liquid supply pipe body 11; the liquid outlet 121 of the one-way valve 12 is communicated with the inner cavity 111 of the liquid supply pipe body 11; an end of the liquid supply pipe body 11 is provided with a liquid outlet 112.
According to the medical one-way liquid supply valve provided by the embodiment of the invention, one-way conduction of a liquid conveying channel is realized through the liquid supply pipe body 11 and the at least two one-way valves 12, liquid can be conveyed from the liquid inlet side of the one-way valves 12 to the liquid outlet side of the liquid supply pipe body 11 only, and the liquid cannot flow back to the liquid inlet side of the one-way valves 12 in the reverse direction, so that when the medical one-way liquid supply valve is used for surgical liquid supply, the liquid outlet of the liquid supply pipe body 11 is connected to other liquid conveying structures, for example, a side pipe of a Y-shaped connector, and the phenomenon that blood flows back; the liquid supply control can be realized by controlling the start or stop of the liquid supply device during liquid supply, different liquid supply liquids can be switched without operating on the medical one-way liquid supply valve, and in the liquid supply process, manual intervention is not needed on an infusion channel formed by the medical one-way liquid supply valve, so that the influence of human factors is reduced, the automation degree is high, and the working efficiency of liquid supply is improved. In addition, the medical one-way liquid supply valve has the advantages of simple and compact structure, small occupied space and relatively few parts, and is suitable for surgical liquid supply with small space area.
The structure of the medical one-way liquid supply valve will be further described below.
In one possible embodiment, and referring to FIG. 1, the outlet 112 of the liquid supply tube body 11 is shaped as a cone with a gradually decreasing diameter. When the medical one-way liquid supply valve is used for connection with a Y-shaped connector, as shown in fig. 3, a liquid inlet of a side tube of the Y-shaped connector 2 is in a horn shape with a gradually increasing diameter, and a tapered liquid outlet 112 of a liquid supply tube body 11 of the medical one-way liquid supply valve 1 is inserted into the horn-shaped liquid inlet of the side tube of the Y-shaped connector for fixation.
Specifically, a connecting portion 113 capable of moving along the axial direction of the liquid supply pipe body 11 may be sleeved on a pipe wall of the liquid outlet 112 of the liquid supply pipe body 11; the outlet 112 has a protrusion 114 on the outer portion of the tube wall to block the end of the connecting portion 113 and prevent the connecting portion 113 from separating from the liquid supply tube body 11.
Specifically, the inner wall of the connection portion 113 fitted to the liquid supply tube body 11 of the medical one-way liquid supply valve may have an internal thread, the outer wall of the liquid inlet end portion of the side tube of the Y-type connector may have an external thread, and the medical one-way liquid supply valve may be screwed to the liquid inlet of the side tube of the Y-type connector through the connection portion 113 fitted to the liquid supply tube body 11.
In one possible embodiment, referring to FIG. 1, the end of the liquid supply tube 11 of the medical one-way liquid supply valve away from the liquid outlet 112 has a liquid inlet 115, and a sealing cap 116 is connected to the liquid inlet 115.
Specifically, the inner wall of the sealing cap 116 may have an internal thread, the outer wall of the liquid inlet 115 of the liquid supply pipe body 11 may have an external thread, and the sealing cap 116 may be fixedly connected to the liquid inlet 115 of the liquid supply pipe body 11 by a thread. A liquid inlet 115 is arranged on a liquid supply pipe body 11 of the medical one-way liquid supply valve, and is plugged by a detachable sealing cap 116 during normal use; when the liquid needs to be supplied from the liquid inlet 115 of the liquid supply pipe body 11, the sealing cap can be removed, and other one-way valves or at least one three-way valve can be connected to the liquid inlet 115. The detachable connection mode can expand the liquid supply inlet of the medical one-way liquid supply valve according to the requirement, so that the application range of the medical one-way liquid supply valve is wider.
In one possible embodiment, as illustrated with reference to FIG. 1, the liquid inlet 115 of the liquid supply body 11 is flared with a gradually increasing diameter such that a one-way valve or a three-way valve having the same shape as the liquid outlet 112 of the liquid supply body 11 of the embodiments of the present invention is connected to the liquid inlet 115 of the liquid supply body 11.
Specifically, at least a portion of the inner wall of the liquid inlet 115 of the liquid supply pipe body 11 may be a frosted surface (not shown in the figure), and when the one-way valve or the three-way valve is connected, the friction between the portion of the liquid outlet of the one-way valve or the three-way valve inserted into the liquid inlet 115 of the liquid supply pipe body 11 and the frosted surface of the inner wall of the liquid inlet 115 is large, so as to prevent the situation of loose insertion.
In one possible embodiment, referring to FIG. 1, the medical check fluid supply valve has three check valves 12, and the axes of the three check valves 12 are in the same plane, so that the medical check fluid supply valve 1 can be connected to an external fluid supply device.
Specifically, one end of the check valve 12 away from the liquid outlet 121 may have an inlet 122, and the inlet 122 of the check valve 12 may be in a horn shape with a gradually increasing diameter. In practice, two of the three check valves 12 may be connected to the high pressure water supply and one to the contrast medium supply. The outer wall of the end part of the liquid inlet 122 of each one-way valve 12 is provided with external threads, the end parts of the conduits of the high-pressure water supply device and the contrast medium supply device are provided with internal threads, and the three one-way valves 12 are respectively in threaded connection with the conduits of the high-pressure water supply device and the contrast medium supply device.
The inventor of the invention finds that the water pressure of the high-pressure water supplied by the high-pressure water supply device is unstable, when the pressure is too low, the blood flows back rapidly, and the blood flowing back to the transfusion channel can not flow into the blood vessel completely, so that blood coagulation can be caused; meanwhile, at the moment of shutting down the high-pressure water and introducing the contrast agent, or at the moment of shutting down the contrast agent and introducing the high-pressure water, the pressure in the infusion channel is instantaneously reduced, and blood backflow is also caused. Therefore, by arranging two paths of high-pressure water, when the pressure of the working high-pressure water is reduced, the other path of high-pressure water is switched in time to quickly stabilize the liquid supply pressure in the infusion channel, so that the blood reflowing to the infusion channel quickly flows back to the blood vessel, and the blood is prevented from being coagulated.
It should be noted that the number of the check valves 12 of the medical check liquid supply valve may be two, three or more, and the number of the check valves 12 may be determined according to the application scenario of the medical check valves 12. Because the high-pressure water needs to flow through for a long time in the operation process, and the contrast agent only needs to flow through for a short time when the condition of the blood vessel needs to be observed, the high-pressure water supply device needs to be connected with the three-way valve far away from the Y-shaped connector when the high-pressure water supply device and the contrast agent supply device are connected through the conventional infusion channel connected by the three-way valve, so that the times of pulling the three-way valve by an operator are reduced, and the operation time is saved. The medical one-way liquid supply valve provided by the invention does not need to be operated by an operator in a transfusion channel, the connection sequence of each one-way valve 12 with the high-pressure water supply device and the contrast agent supply device is not strictly limited, and the front and back positions of the high-pressure water supply device and the contrast agent supply device have no influence on the operation time.
In a possible embodiment, the inner wall of the inlet port 122 of the check valve 12 of the medical check fluid supply valve is at least partially frosted (not shown). When the port of the conduit connected to the inlet 122 of the check valve 12 has the same shape as the outlet 112 of the liquid supply pipe body 11 of the medical check liquid supply valve according to the embodiment of the present invention, the frictional force between the portion of the conduit inserted into the inlet 122 of the check valve 12 and the frosted surface of the inner wall of the inlet 122 of the check valve 12 is large, so as to prevent the situation of loose insertion.
Referring to fig. 1, the check valve 12 of the medical check liquid supply valve is integrally formed with the liquid supply tube body 11. Of course, it is also possible that the one-way valve 12 of the medical one-way liquid supply valve is detachably connected to the liquid supply tube body 11. Specifically, a connection port (not shown) may be provided at a connection position of the liquid supply pipe body 11 and the check valve 12, an external thread may be provided on a pipe wall at an end portion of the connection port, an internal thread (not shown) may be provided at a liquid inlet of the check valve 12, and the check valve 12 may be fixedly connected to the liquid supply pipe body 11 through a thread. In the embodiment of the present invention, when the check valve 12 is detachably connected to the liquid supply pipe body 11, the connection manner of the check valve 12 and the liquid supply pipe body 11 is not limited to the above manner, and the embodiment of the present invention is not limited thereto.
In an alternative embodiment, the liquid supply tube body 11 has an internal diameter of between 2mm and 10 mm;
the product of the distance between the at least two check valves 12 on the liquid supply pipe body 11 and the square of the inner diameter of the liquid supply pipe body 11 is 450mm3To 12000mm3In the meantime.
The inventor of the present invention found that the liquid supply tube body has an excessively long length or an excessively large inner diameter, which results in an excessively large volume of the liquid supply tube body, and that the liquid supply tube body may be filled with liquid for a long time during switching of liquid supply, which may cause backflow of blood and even coagulation of blood in the liquid supply tube body. In order to ensure that the liquid supply speed of the inner cavity of the liquid supply pipe body of the medical one-way liquid supply valve meets the requirement of quickly recovering the pressure in the liquid supply pipe body when liquid supply is switched, and the volume of the pipe section of the liquid supply pipe body needs to be ensured not to be overlarge, the inventor of the invention obtains through a plurality of experiments that the inner diameter of the liquid supply pipe body is between 2mm and 10mm, and the product of the distance between two adjacent one-way valves 12 on the liquid supply pipe body 11 and the square of the inner diameter of the liquid supply pipe body 11 is 450mm3To 12000mm3BetweenWhen the medical one-way liquid supply valve is used, the liquid supply quantity can be ensured, and meanwhile, the liquid supply speed and the pressure in the medical one-way liquid supply valve can be ensured to be quickly recovered.
Example two:
as another embodiment of the present invention, a medical one-way liquid supply valve is further provided, and as shown in fig. 2, an end of the liquid supply pipe body 11 of the medical one-way liquid supply valve, which is far away from the liquid outlet 112, is closed.
The structure of the other parts of the medical one-way liquid supply valve shown in fig. 2 may be the same as the structure of the medical one-way liquid supply valve shown in fig. 1, and reference may be made to the description of the structure of the medical one-way liquid supply valve shown in fig. 1 in the foregoing embodiment one, and repeated details are not repeated.
Example three:
based on the same inventive concept, an embodiment of the present invention further provides a medical apparatus, which is shown in fig. 3 and includes: a Y-shaped connector 2 and the medical one-way liquid supply valve 1 in the above embodiment;
and a liquid supply pipe body 11 of the medical one-way liquid supply valve 1 is communicated with a side pipe of the Y-shaped connector 2.
For a specific structure of the medical one-way liquid supply valve according to the embodiment of the present invention, reference may be made to the description in the first embodiment, and the Y-shaped connector according to the embodiment of the present invention may adopt a structure of a Y-shaped connector in the prior art, which is not described herein again.
Example four:
based on the same inventive concept, an embodiment of the present invention further provides a medical system, which is shown in fig. 3 and includes: a Y-shaped connector 2, the medical one-way liquid supply valve 1 in the above embodiment, at least one group of high-pressure water injection devices 4 and at least one group of contrast agent injection devices 5 connected with the medical one-way liquid supply valve 1, and a controller 3 connected with the at least one group of high-pressure water injection devices 4 and the at least one group of contrast agent injection devices 5;
the controller 3 controls only one group of high-pressure water injection devices 4 or at least one group of contrast agent injection devices 5 to supply liquid at the same time.
When the medical system provided by the embodiment of the invention is applied to an operation process, the controller controls the start and stop of the high-pressure water injection device and the contrast agent injection device, so that the liquid supply switching of high-pressure water and contrast agent is realized, the time and labor are saved compared with the manual operation of pulling a wrench of a three-way valve, the liquid supply switching is rapid, the manual participation is reduced, and the working efficiency is improved. The liquid supply pressure in the medical one-way liquid supply valve can quickly return to normal pressure, so that the blood flowing back to the medical one-way liquid supply valve flows back to the blood vessel, and the blood flowing back to the medical one-way liquid supply valve can be prevented from coagulating.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (15)
1. A medical one-way fluid supply valve, comprising: a liquid supply pipe body (11) and at least two one-way valves (12) arranged on the pipe wall of the liquid supply pipe body (11); a liquid outlet (121) of the one-way valve (12) is communicated with an inner cavity (111) of the liquid supply pipe body (11); one end of the liquid supply pipe body (11) is provided with a liquid outlet (112).
2. A medical fluid supply valve according to claim 1, wherein the inner diameter of said fluid supply tube body (11) is between 2mm and 10 mm;
the product of the distance between the at least two check valves (12) on the liquid supply pipe body (11) and the square of the inner diameter of the liquid supply pipe body (11) is 450mm3To 12000mm3In the meantime.
3. A medical fluid supply valve according to claim 1, wherein the outlet (112) of the fluid supply tube body (11) is tapered with a decreasing diameter.
4. The medical one-way liquid supply valve according to claim 3, wherein a connecting portion (113) axially movable along the liquid supply tube body (11) is sleeved on a tube wall of the liquid outlet (112) of the liquid supply tube body (11); the liquid outlet (112) has a protrusion (114) on the outside of the tube wall to block the end of the connecting portion (113).
5. A medical one-way liquid supply valve according to claim 1, wherein an end of the liquid supply tube body (11) remote from the liquid outlet (112) is closed.
6. The medical one-way liquid supply valve as claimed in claim 1, wherein an end of the liquid supply pipe body (11) far away from the liquid outlet (112) is provided with a liquid inlet (115), and a sealing cap (116) is connected to the liquid inlet (115).
7. The medical one-way liquid supply valve as claimed in claim 6, wherein the inner wall of the sealing cap (116) is internally threaded, the outer wall of the liquid inlet (115) of the liquid supply pipe body (11) is externally threaded, and the sealing cap (116) is threadedly secured with the liquid inlet (115) of the liquid supply pipe body (11).
8. A medical one-way liquid supply valve according to claim 6, wherein the liquid inlet (115) of the liquid supply tube body (11) is flared with a gradually increasing diameter.
9. The medical one-way liquid supply valve as claimed in claim 6, wherein the inner wall of the liquid inlet (115) of the liquid supply pipe body (11) is at least partially frosted.
10. A one-way liquid supply valve for medical use according to claim 1, wherein an end of the one-way valve (12) remote from the liquid outlet (121) is provided with a liquid inlet (122), and the liquid inlet (122) of the one-way valve (12) is flared with a gradually increasing diameter.
11. A medical one-way liquid supply valve according to claim 10, wherein the inner wall of the liquid inlet (122) of the one-way valve (12) is at least partially frosted.
12. A medical fluid supply check valve as defined in claim 1 wherein the axes of said at least two check valves (12) are in the same plane.
13. A medical fluid supply check valve as claimed in any of claims 1 to 12, wherein said at least two check valves (12) are integrally formed with said fluid supply pipe body (11) or are detachably connected thereto.
14. A medical device, comprising: -a Y-connector (2) and a medical one-way fluid supply valve (1) according to any of claims 1-13;
and a liquid supply pipe body (11) of the medical one-way liquid supply valve (1) is communicated with a side pipe of the Y-shaped connector (2).
15. A medical system, comprising: -a Y-connector (2) and a medical one-way fluid supply valve (1) according to any of claims 1-13, -at least one set of high pressure water injection means (4) and at least one set of contrast agent injection means (5) connected to the medical one-way fluid supply valve (1), -a controller (3) connected to the at least one set of high pressure water injection means (4) and the at least one set of contrast agent injection means (5);
the controller (3) controls only one group of high-pressure water injection devices (4) or at least one group of contrast agent injection devices (5) to supply liquid at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282266.2A CN111790054A (en) | 2019-04-09 | 2019-04-09 | Medical one-way liquid supply valve, medical instrument and medical system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910282266.2A CN111790054A (en) | 2019-04-09 | 2019-04-09 | Medical one-way liquid supply valve, medical instrument and medical system |
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| CN111790054A true CN111790054A (en) | 2020-10-20 |
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| CN201910282266.2A Pending CN111790054A (en) | 2019-04-09 | 2019-04-09 | Medical one-way liquid supply valve, medical instrument and medical system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569456A (en) * | 2020-12-23 | 2021-03-30 | 上海璞康医疗器械有限公司 | Multifunctional radiography catheter device capable of preventing countercurrent |
| CN112957562A (en) * | 2021-03-26 | 2021-06-15 | 上海埃斯埃医疗技术有限公司 | Disposable connecting piece for infusion |
| CN114534088A (en) * | 2022-03-26 | 2022-05-27 | 易度河北机器人科技有限公司 | Full-automatic blood vessel intervention one-way flow valve |
-
2019
- 2019-04-09 CN CN201910282266.2A patent/CN111790054A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569456A (en) * | 2020-12-23 | 2021-03-30 | 上海璞康医疗器械有限公司 | Multifunctional radiography catheter device capable of preventing countercurrent |
| CN112957562A (en) * | 2021-03-26 | 2021-06-15 | 上海埃斯埃医疗技术有限公司 | Disposable connecting piece for infusion |
| CN114534088A (en) * | 2022-03-26 | 2022-05-27 | 易度河北机器人科技有限公司 | Full-automatic blood vessel intervention one-way flow valve |
| CN114534088B (en) * | 2022-03-26 | 2023-11-21 | 易度河北机器人科技有限公司 | Full-automatic vascular intervention one-way circulation valve |
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