Multi-way valve for vascular interventional operation

Abstract

The utility model provides a multi-way valve for a vascular interventional operation, and relates to the technical field of medical instruments. The multi-way valve comprises a valve body and an exhaust valve. The valve body extends outwards from the center of the valve body to form a liquid inlet end, an insertion end, an adjusting end and an exhaust end of the valve body. The exhaust valve is connected to the exhaust end and comprises a valve bonnet, a sealing piece and a connecting piece, the connecting piece is connected to the exhaust end, the valve bonnet is connected to the connecting piece, the sealing piece is arranged in a cavity defined by the valve bonnet and the connecting piece, and a gap is formed between the sealing piece and the inner side wall of the valve bonnet. A notch is formed in the top wall of the side, away from the connecting piece, of the valve bonnet, and the sealing piece is matched with the notch in shape and used for being switched between the first state and the second state along with the liquid amount of liquid injected into the liquid inlet end and the notch. Wherein in the first state, the sealing piece is far away from the notch to achieve exhaust, and in the second state, the sealing piece abuts against the notch to achieve sealing. According to the multi-way valve, the error rate of a doctor in the operation process can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to a multi-way valve for vascular interventional surgery. Background Art

[0002] Vascular interventional surgery is an operation technique that uses puncture needles, guide wires, catheters and other interventional consumables to diagnose and treat through blood vessels under the guidance of medical imaging equipment. However, vascular interventional surgery needs to be performed under ionizing radiation. To ensure the safety of personnel, doctors need to wear heavy lead suits for safety protection, which may cause damage to the doctor's skeletal system in the long run. With the rapid development of intelligent technology and medicine, the development of vascular interventional surgery robots has become a reality.

[0003] In the relevant operating equipment, doctors usually use a Y-valve to control the fixation or movement of the interventional consumables, so that the doctor can adjust the different movement states of the interventional consumables through the Y-valve, thereby performing different surgical operations on the patient. Specifically, the Y-valve includes a valve body, a locking member, an exhaust valve, a first connector and a second connector. The valve body has four ports that are interconnected. The exhaust valve is connected to one of the ports of the valve body. During the vascular interventional surgery, the interventional consumables are inserted into the Y-valve through the first connector, and different operations of the surgical process are achieved by injecting different types of liquids into the second connector. During the process of injecting the liquid, the exhaust valve is screwed to achieve control of the gas in the valve body.

[0004] However, during the process of inserting the interventional consumables into the patient, since the doctor needs to frequently inject different liquids into the valve body, the doctor may forget to screw the exhaust valve, causing the gas in the valve body to enter the patient's interventional site and cause safety hazards, which is not conducive to the doctor's operation. Utility Model Content

[0005] The purpose of the present disclosure is to overcome at least one of the deficiencies of the above-mentioned related technologies and to provide a multi-way valve for vascular intervention surgery, which can reduce the error rate of doctors during the operation.

[0006] Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.

[0007] According to one aspect of the present disclosure, a multi-way valve for vascular intervention surgery is provided, comprising:

[0008] The valve body includes a liquid inlet end, an insertion end, an adjustment end, and an exhaust end extending outward from the center of the valve body to form the valve body, the insertion end is used for inserting the first interventional consumable, the adjustment end is used for connecting with the second interventional consumable, and the first interventional consumable can be inserted into the second interventional consumable;

[0009] An exhaust valve is connected to the exhaust end. The exhaust valve includes a valve cap, a sealing member and a connecting member. The connecting member is connected to the exhaust end. The valve cap is connected to the connecting member. The sealing member is arranged in a cavity surrounded by the valve cap and the connecting member. There is a gap between the sealing member and the inner side wall of the valve cap.

[0010] A notch is provided on the top wall of the valve cap on the side away from the connecting piece, and the sealing piece matches the shape of the notch, and is used to switch between the first state and the second state according to the amount of liquid injected into the liquid inlet end and the notch;

[0011] In the first state, the sealing member is away from the notch to achieve exhaust, and in the second state, the sealing member abuts against the notch to achieve sealing.

[0012] In an exemplary embodiment of the present disclosure, the exhaust valve further comprises:

[0013] The sealing plug is arranged between the sealing member and the valve bonnet, connected to the inner side wall of the valve bonnet, and the shape of the outer edge of the sealing plug matches the shape of the inner side wall of the valve bonnet.

[0014] In an exemplary embodiment of the present disclosure, the sealing plug comprises:

[0015] A mating portion connected to the inner wall of the valve bonnet;

[0016] The connecting portion is arranged on one side of the matching portion and penetrates the notch;

[0017] The flange is arranged on the other side of the matching portion, connected to the valve bonnet and the connecting piece, and is used for sealing the contact surface between the valve bonnet and the connecting piece.

[0018] In an exemplary embodiment of the present disclosure, the notch is a through hole, the sealing member is a sealing ball, and the diameter of the sealing ball is greater than the diameter of the through hole.

[0019] In an exemplary embodiment of the present disclosure, the sealing ball is a hollow structure.

[0020] In an exemplary embodiment of the present disclosure, the mating portion is in an arc shape, and the inner side wall of the valve cap is in an arc shape;

[0021] An axis of the sealing ball is in the same straight line as the axis of the matching portion and the axis of the inner side wall of the valve cap.

[0022] In an exemplary embodiment of the present disclosure, in a projection direction perpendicular to the notch, the projection of the notch is within the projection of the sealing member.

[0023] In an exemplary embodiment of the present disclosure, the flange is an elastic member.

[0024] In an exemplary embodiment of the present disclosure, the exhaust valve further comprises:

[0025] The blocking member is arranged on the connecting member and is arranged obliquely with the sealing member to prevent the sealing member from being separated from the exhaust end.

[0026] In an exemplary embodiment of the present disclosure, the blocking member includes:

[0027] a first blocking unit;

[0028] a second blocking unit;

[0029] The first blocking units and the second blocking units are arranged vertically and alternately.

[0030] The multi-way valve for vascular interventional surgery disclosed in the present invention comprises a valve body and an exhaust valve. The valve body extends outward from the center of the valve body to form a liquid inlet end, an insertion end, an adjustment end and an exhaust end of the valve body, the insertion end is used for inserting a first interventional consumable, and the adjustment end is used to connect with a second interventional consumable, and the first interventional consumable can be inserted into the second interventional consumable. The exhaust valve is connected to the exhaust end, and the exhaust valve comprises a valve cap, a sealing member and a connecting member, the connecting member is connected to the exhaust end, the valve cap is connected to the connecting member, the sealing member is arranged in a cavity surrounded by the valve cap and the connecting member, and there is a gap between the sealing member and the inner side wall of the valve cap. A notch is arranged on the top wall of the valve cap away from the connecting member, and the shape of the sealing member matches the notch, and is used to switch between a first state and a second state with the amount of liquid injected into the liquid inlet end and the notch. Wherein, in the first state, the sealing member is away from the notch to achieve exhaust, and in the second state, the sealing member abuts against the notch to achieve sealing. The multi-way valve disclosed in the present invention can reduce the error rate of doctors during operation.

[0031] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0033] Figure 1 Schematic diagram of the structure of the multi-way valve disclosed in the present invention.

[0034] Figure 2 yes Figure 1 Exploded diagram.

[0035] Figure 3 is a cross-sectional view of the valve cap and the seal of the present disclosure in a first state.

[0036] Figure 4is a cross-sectional view of the valve bonnet and the seal of the present disclosure in a second state.

[0037] The main components in the figure are described as follows:

[0038] 1. Multi-way valve;

[0039] 11. Valve body; 12. Exhaust valve;

[0040] 111, liquid inlet end; 112, regulating end; 113, insertion end; 114, exhaust end;

[0041] 121, valve cap; 122, sealing member; 123, connecting member; 124, sealing plug; 125, blocking member;

[0042] 1211, gap;

[0043] 1241. Fitting portion; 1242. Connecting portion; 1243. Flange. DETAILED DESCRIPTION

[0044] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0045] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the diagram to another component, these terms are used in this specification only for convenience, such as according to the direction of the examples in the drawings. It is understood that if the device of the diagram is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0046] The terms "a", "an", "the", "" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first" and "second" are used merely as labels and are not intended to limit the quantity of their objects.

[0047] The present disclosure provides a multi-way valve for vascular interventional surgery, including a valve body and an exhaust valve. The exhaust valve includes a valve cap, a sealing member and a connector, wherein the connector is connected to the exhaust end of the valve body, the sealing member is arranged in a cavity surrounded by the valve cap and the connector, and a notch is arranged on one side of the valve cap, which is used to switch between a first state and a second state according to the amount of liquid injected into the liquid inlet end and the notch. In the first state, the sealing member is away from the notch to achieve exhaust, and in the second state, the sealing member abuts against the notch to achieve sealing. The multi-way valve disclosed in the present disclosure can reduce the error rate of doctors during operation.

[0048] According to one aspect of the present disclosure, a multi-way valve 1 is provided. Figure 1 As shown, the multi-way valve 1 includes a valve body 11 and an exhaust valve 12. The valve body 11 is the core body of the multi-way valve 1, and the exhaust valve 12 serves as the exhaust mechanism of the multi-way valve 1, which is used to discharge the gas in the valve body 11 during the movement of the interventional consumables to prevent the gas in the valve body 11 from entering the patient's blood vessels, thereby avoiding harm to the patient. It should be noted that the multi-way valve 1 disclosed in the present invention can be used in traditional manual interventional surgery as well as in interventional surgery performed with the aid of a vascular interventional surgical robot. This change in application scenario does not affect the protection scope of the present disclosure.

[0049] The valve body 11 includes a liquid inlet end 111, an adjustment end 112, an insertion end 113 and an exhaust end 114 extending outward from the center of the valve body 11 to form the valve body 11. The exhaust end 114 is arranged between the adjustment end 112 and the liquid inlet end 111. The insertion end 113 is used for inserting a first interventional consumable, and the adjustment end 112 is used to connect with a second interventional consumable. The first interventional consumable can be inserted into the second interventional consumable. The first interventional consumable is usually a guide wire, and the second interventional consumable is usually a catheter. Of course, the first interventional consumable can also be a self-expanding stent, etc., which is not restrictive; the insertion end 113 can be used to implement the first interventional consumable when the first interventional consumable is inserted. Lock or unlock, so that the first interventional consumable is fixed or moves relative to the valve body 11. It can be understood that the above-mentioned locking means clamping the first interventional consumable and not allowing it to move, and unlocking means keeping a certain gap with the first interventional consumable and allowing it to move; the liquid inlet end 111 is connected to the pipeline to inject external liquid into the valve body 11. By injecting different types of liquids, the different use requirements of the first interventional consumable to intervene in the patient's treatment area can be met; the adjustment end 112 is connected to the second interventional consumable, and the second interventional consumable can be intervened in the patient's body; the exhaust end 114 serves as the exhaust part of the valve body 11, which can be used to exhaust the gas in the valve body 11 to prevent the gas from entering the body. Specifically, when the doctor injects liquid into the valve body 11 through the liquid inlet end 111, there will be gas inside the valve body 11, and the gas can be discharged from the valve body 11 through the exhaust valve 12 to prevent the gas from entering the patient's body through the valve body 11 and causing gas embolism.

[0050] Furthermore, the exhaust valve 12 is connected to the exhaust port 114. Figure 2 As shown, the exhaust valve 12 includes a valve cap 121, a sealing member 122 and a connecting member 123. The connecting member 123 is connected to the exhaust end 114. The valve cap 121 is connected to the connecting member 123. The sealing member 122 is arranged in a cavity surrounded by the valve cap 121 and the connecting member 123. There is a gap between the sealing member 122 and the inner side wall of the valve cap 121. A notch 1211 is arranged on the top wall of the valve cap 121 on the side away from the connecting member 123. The sealing member 122 matches the shape of the notch 1211 and is used to switch between a first state and a second state with the amount of liquid injected into the liquid inlet end 111 and the notch 1211; wherein, in the first state, the sealing member 122 is away from the notch 1211 to achieve exhaust, and in the second state, the sealing member 122 abuts against the notch 1211 to achieve sealing.

[0051] It should be noted that the valve bonnet 121 includes an inner wall and a top wall, and there is a gap between the seal 122 and the inner wall of the valve bonnet 121. A notch 1211 is provided on the top wall of the valve bonnet 121 on the side away from the connecting member 123. In the first state, the seal 122 is away from the notch 1211. At this time, there are gaps between the seal 122 and the inner wall and the notch of the valve bonnet 121. In the second state, the seal 122 abuts against the notch 1211. At this time, there is a gap between the seal 122 and the inner wall of the valve bonnet 121, and at the same time, there is no gap between the seal 122 and the notch of the valve bonnet 121.

[0052] It should be noted that in the process of moving the interventional consumable relative to the patient's blood vessels to achieve vascular treatment of the patient, liquids such as physiological saline and heparin need to be injected into the patient's body through the liquid inlet end 111. When the interventional consumable moves to a suitable position in the patient's blood vessels, liquids such as contrast agents need to be injected into the patient's body through the liquid inlet end 111, thereby achieving sampling and observation of the internal information of the blood vessels at the patient's current position.

[0053] Specifically, when the first interventional consumable is inserted into the valve body 11 and liquid is injected through the liquid inlet end 111 , the contact condition between the sealing member 122 and the notch 1211 changes continuously with the change in the amount of injected liquid.

[0054] like Figure 3 As shown, no liquid is injected into the valve body 11 or the amount of liquid injected is small, and the seal 122 and the notch 1211 are in the first state. At this time, the seal 122 is away from the notch 1211. Since there is a gap between the seal 122 and the inner side wall of the valve cap 121, the gas in the valve body 11 will pass through the gap between the seal 122 and the valve cap 121 and be discharged from the valve body 11 from the notch 1211 of the valve cap 121, thereby preventing the gas in the valve body 11 from entering the patient's interventional site and causing safety hazards to the patient.

[0055] like Figure 4 As shown, as the amount of liquid injected increases, the injected liquid will push the seal 122 toward one side of the valve cap 121, and make the seal 122 and the notch 1211 in the second state. At this time, the seal 122 abuts against the notch 1211. As the amount of liquid injected into the seal 122 and the notch 1211 gradually increases, the gas in the valve body 11 is gradually squeezed to the exhaust valve 12. When the seal 122 and the notch 1211 are in the second state, the gas in the valve body 11 can be completely discharged from the valve body 11 through the notch 1211. At the same time, the seal 122 abuts against the notch 1211. In the process of continuing to inject liquid, the liquid will be affected by the abutment of the seal 122 and the notch 1211, and cannot be discharged from the valve body 11 through the notch 1211, thereby achieving the effect of no gas in the valve body 11 and no liquid leaking out of the valve body 11.

[0056] Since the sealing member 122 in the exhaust valve 12 moves relative to the valve cap 121 during the process of injecting liquid into the valve body 11, the gas in the valve body 11 can be discharged from the valve body 11 through the exhaust valve 12 during the whole process of liquid injection until there is no gas in the valve body 11, thereby preventing the gas in the valve body 11 from entering the patient's blood vessels. At the same time, when there is no gas in the valve body 11, liquid will not leak out of the valve body 11. During the process of injecting liquid, the doctor does not need to exhaust the gas in the exhaust valve 12, and does not need to prevent the liquid in the exhaust valve 12 from leaking out. The doctor can exhaust the gas and prevent the liquid from leaking out without manual intervention, thereby facilitating the doctor's operation.

[0057] In addition, in the related art, when the doctor manually controls the exhaust valve to exhaust, he also needs to operate the multi-way valve 1 to control the intervention consumables to implement the patient's vascular intervention surgery. The doctor needs to frequently operate the various components of the multi-way valve, and the doctor may cause treatment errors on the patient due to operational errors. However, through the structure of the exhaust valve 12 in the multi-way valve 1 of this solution, the doctor does not need to frequently operate the exhaust valve 12, which can reduce the error rate of the doctor's operation process and improve the safety of the patient's vascular intervention surgery.

[0058] The various parts of the multi-way valve 1 are described in detail below:

[0059] In an exemplary embodiment of the present disclosure, the exhaust valve 12 further includes a sealing plug 124. Figure 2As shown, the sealing plug 124 is disposed between the sealing member 122 and the valve bonnet 121, connected to the inner side wall of the valve bonnet 121, and the shape of its outer edge matches the shape of the inner side wall of the valve bonnet 121. Since the sealing plug 124 is connected to the inner side wall of the valve bonnet 121, and the shape of its outer edge matches the shape of the inner side wall of the valve bonnet 121, in the second state, when the sealing member 122 abuts against the notch 1211 of the valve bonnet 121, the sealing plug 124 can serve as a transition structure between the sealing member 122 and the notch 1211, protecting the sealing member 122 and the notch 1211 from damage due to excessive abutment force, thereby improving the service life of the sealing member 122 and the valve bonnet 121.

[0060] In an exemplary embodiment of the present disclosure, the sealing plug 124 includes a matching portion 1241, a connecting portion 1242 and a flange 1243. Figure 2 As shown, the matching portion 1241 is connected to the inner wall of the valve bonnet 121; the connecting portion 1242 is arranged on one side of the matching portion 1241 and penetrates the notch 1211; the flange 1243 is arranged on the other side of the matching portion 1241, connected to the valve bonnet 121 and the connecting piece 123, and is used to seal the contact surface between the valve bonnet 121 and the connecting piece 123.

[0061] Specifically, since the matching portion 1241 is connected to the inner wall of the valve cap 121, in the second state, when the seal 122 abuts against the notch 1211 of the valve cap 121, the matching portion 1241 can serve as a transitional portion between the seal 122 and the notch 1211, protecting the seal 122 and the notch 1211 from damage due to excessive abutment force. When the seal 122 abuts against the notch 1211, the liquid in the valve body 11 will impact the connection between the seal 122 and the notch 1211. Since the connecting portion 1242 is disposed on one side of the matching portion 1241 and penetrates the notch 1211, the connecting portion 1242 can better prevent the liquid from leaking out of the notch 1211, thereby achieving sealing performance of the abutment portion between the seal 122 and the notch 1211. Similarly, the valve bonnet 121 is connected to the connecting piece 123. During the process of injecting liquid, the liquid will impact the contact surface between the valve bonnet 121 and the connecting piece 123. Since the flange 1243 is arranged on the other side of the mating portion 1241 and connected to the valve bonnet 121 and the connecting piece 123, the liquid can be prevented from leaking out of the contact surface between the valve bonnet 121 and the connecting piece 123, thereby achieving sealing performance between the contact surface between the valve bonnet 121 and the connecting piece 123.

[0062] In an exemplary embodiment of the present disclosure, the notch 1211 is a through hole, the seal 122 is a sealing ball, and the diameter of the sealing ball is greater than the diameter of the through hole. Specifically, since the notch 1211 is a through hole, the seal 122 is a sealing ball, and the diameter of the sealing ball is greater than the diameter of the through hole, on the one hand, the tightness of the abutment between the seal 122 and the notch 1211 can be improved, so that the seal 122 can better abut against the notch 1211. On the other hand, since the notch 1211 is a through hole, the seal 122 is a sealing ball, so that the sealing ball can fit the through hole, so that during the abutment process between the sealing ball and the notch 1211, the sealing ball and the notch 1211 always maintain close contact, thereby improving the tightness of the abutment between the seal 122 and the notch 1211.

[0063] Optionally, the notch 1211 is an exhaust groove. In the first state, the seal 122 is away from the exhaust groove to achieve exhaust. In the second state, the seal 122 abuts against the exhaust groove to achieve sealing. Of course, the notch 1211 can be a structure such as an exhaust valve or an exhaust pipe, and the shape and structure of the notch 1211 are not further limited here.

[0064] In an exemplary embodiment of the present disclosure, the sealing ball is a hollow structure. Specifically, since the sealing ball is a hollow structure, during the process of injecting liquid through the liquid inlet end 111, the density of the sealing ball is less than the density of the liquid, so that as the amount of liquid increases, the distance between the sealing ball and the notch 1211 is always less than the distance between the liquid and the notch 1211, so that under the driving force of the liquid, the sealing ball always preferentially abuts against the notch 1211 relative to the liquid, thereby preventing the liquid from leaking out.

[0065] In an exemplary embodiment of the present disclosure, the matching portion 1241 is in an arc shape, and the inner side wall of the valve cap 121 is in an arc shape; an axis of the sealing ball is in the same straight line with the axis of the matching portion 1241 and the axis of the inner side wall of the valve cap 121. Specifically, in the process of liquid pushing the sealing ball to move, since an axis of the sealing ball is in the same straight line with the axis of the matching portion 1241 and the axis of the inner side wall of the valve cap 121, the sealing ball can be prevented from deviating from the position toward the notch 1211 during the movement, thereby preventing the notch 1211 from abutting against part of the sealing ball, part of the notch 1211 from leaking out, causing liquid to leak out through the notch 1211, and affecting the normal progress of the vascular interventional surgery.

[0066] In an exemplary embodiment of the present disclosure, in the projection direction perpendicular to the notch 1211, the projection of the notch 1211 is within the projection of the seal 122. Specifically, since in the projection direction perpendicular to the notch 1211, the projection of the notch 1211 is within the projection of the seal 122, when the seal 122 moves toward the notch 1211, it is possible to avoid the situation where the seal 122 is not completely in contact with the notch 1211 or even the seal 122 falls off the notch 1211 due to the small size of the seal 122 relative to the notch 1211, thereby improving the tightness of the contact between the seal 122 and the notch 1211, and at the same time, in the second state, the seal 122 is better in contact with the notch 1211.

[0067] Optionally, in the projection direction perpendicular to the notch 1211, if the projection of the notch 1211 is not completely within the projection of the seal 122, sealing auxiliary materials, such as tape, sealant, etc., can be added between the notch 1211 and the seal 122 to achieve the second state in which the seal 122 abuts against the notch 1211. Sealing coatings or surface treatment techniques can also be used to form a better sealing layer at the notch 1211. Here, the position of the notch 1211 and the position of the seal 122 are no longer described in detail.

[0068] In an exemplary embodiment of the present disclosure, the flange 1243 is an elastic member. Specifically, since the flange 1243 is an elastic member, after the liquid is injected into the valve body 11, under the impact of the liquid, the elastic member applies a reverse force to the liquid, thereby making the connection between the valve cap 121 and the connecting member 123 tighter, and when there is no liquid in the valve body 11, the size difference between the inner side wall of the valve cap 121 and the connecting member 123 can be compensated, so that the exhaust valve 12 maintains structural continuity and stability.

[0069] In an exemplary embodiment of the present disclosure, the exhaust valve 12 further includes a blocking member 125. Figure 3 and Figure 4As shown, the blocking member 125 is disposed on the connecting member 123 and is disposed obliquely with the sealing member 122 to prevent the sealing member 122 from being separated from the exhaust end 114. It can be understood that since the exhaust valve 12 is disposed outside the exhaust end 114, the exhaust valve 12 protrudes from the valve body 11. Since the exhaust valve 12 also includes a blocking member 125, the blocking member 125 is arranged on the connecting member 123 and is inclined with the sealing member 122. When the sealing member 122 is not subjected to the pushing force of the liquid, the sealing member 122 will fall freely due to the effect of its own gravity. The blocking member 125 is arranged on the connecting member 123 and is inclined to the sealing member 122. This can prevent the sealing member 122 from continuing to fall under the effect of its own gravity, and prevent the sealing member 122 from falling to a portion of the valve body 11 away from the exhaust valve 12. On the one hand, it can prevent the sealing member 122 from being away from the exhaust valve 12 and causing the exhaust valve 12 to fail to work normally. On the other hand, it can prevent the sealing member 122 from falling to other portions of the valve body 11 and affecting the normal operation of other components.

[0070] In an exemplary embodiment of the present disclosure, the blocking member 125 includes a first blocking unit and a second blocking unit. The first blocking unit and the second blocking unit are arranged vertically and staggered. Specifically, since the first blocking unit and the second blocking unit are arranged vertically and staggered, on the one hand, the first blocking unit and the second blocking unit arranged vertically and staggered can achieve a blocking effect on the sealing member 122, thereby preventing the sealing member 122 from falling to a position in the valve body 11 away from the exhaust valve 12; on the other hand, since the blocking member 125 only needs the first blocking member 125 and the second blocking member 125 arranged vertically and staggered, it can achieve a blocking effect on the sealing member 122, thereby reducing the space occupied by the blocking member 125 as a whole, thereby reducing the manufacturing cost of the blocking member 125.

[0071] In an exemplary embodiment of the present disclosure, when liquid is injected into the liquid inlet end 111, the plane where the top wall of the valve cap 121 is located is parallel to the plane where the liquid flows to the exhaust end 114. Specifically, in the process of liquid being injected into the valve body 11 through the liquid inlet end 111, the amount of liquid in the valve body 11 will gradually increase, and the liquid will gradually push the seal 122 to move toward the direction close to the notch 1211 until the seal 122 and the notch 1211 are in the second state. Since when liquid is injected into the liquid inlet end 111, the plane where the top wall of the valve cap 121 is located is parallel to the plane where the liquid flows to the exhaust end 114, in the process of the seal 122 and the notch 1211 abutting, the phenomenon that the liquid is tilted to the notch 1211 and the seal 122 and the notch 1211 are not completely abutted, and the liquid leaks out through the notch 1211 can be avoided, and the safety during the operation can be further improved.

[0072] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the applications disclosed herein. The utility model is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A multi-way valve for vascular intervention surgery, characterized in that: include: A valve body, comprising a liquid inlet end, an insertion end, an adjustment end and an exhaust end extending outward from the center of the valve body to form the valve body, the insertion end is used for inserting a first interventional consumable, the adjustment end is used for connecting with a second interventional consumable, and the first interventional consumable can be inserted into the second interventional consumable; An exhaust valve connected to the exhaust end, the exhaust valve comprising a valve cap, a sealing member and a connecting member, the connecting member being connected to the exhaust end, the valve cap being connected to the connecting member, the sealing member being arranged in a cavity surrounded by the valve cap and the connecting member, and a gap being formed between the sealing member and the inner side wall of the valve cap; A notch is provided on the top wall of the valve cap on a side away from the connecting member, and the sealing member matches the shape of the notch and is used to switch between the first state and the second state according to the amount of liquid injected into the liquid inlet end and the notch; Wherein, in the first state, the sealing member is away from the notch to achieve exhaust, and in the second state, the sealing member abuts against the notch to achieve sealing.

2. The multi-way valve according to claim 1, characterized in that: The exhaust valve further comprises: The sealing plug is arranged between the sealing member and the valve bonnet, connected to the inner side wall of the valve bonnet, and the shape of the outer edge of the sealing plug matches the shape of the inner side wall of the valve bonnet.

3. The multi-way valve according to claim 2, characterized in that: The sealing plug comprises: A matching portion connected to the inner side wall of the valve cap; A connecting portion, arranged on one side of the matching portion and passing through the notch; The flange is arranged on the other side of the matching portion, connected to the valve bonnet and the connecting piece, and is used for sealing the contact surface between the valve bonnet and the connecting piece.

4. The multi-way valve according to claim 3, characterized in that: The notch is a through hole, the sealing element is a sealing ball, and the diameter of the sealing ball is greater than the diameter of the through hole.

5. The multi-way valve according to claim 4, characterized in that: The sealing ball is a hollow structure.

6. The multi-way valve according to claim 4, characterized in that: The matching portion is in an arc shape, and the inner side wall of the valve cap is in an arc shape; An axis of the sealing ball is in the same straight line as the axis of the matching portion and the axis of the inner side wall of the valve cap.

7. The multi-way valve according to any one of claims 1 to 6, characterized in that: In a projection direction perpendicular to the plane where the notch is located, the projection of the notch is within the projection of the sealing member.

8. The multi-way valve according to any one of claims 3 to 6, characterized in that: The flange is an elastic member.

9. The multi-way valve according to any one of claims 1 to 6, characterized in that: The exhaust valve further comprises: A blocking member is arranged on the connecting member and is arranged obliquely with the sealing member to prevent the sealing member from being separated from the exhaust end.

10. The multi-way valve according to claim 9, characterized in that: The blocking member comprises: a first blocking unit; a second blocking unit; The first blocking units and the second blocking units are vertically staggered.

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