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, a valve bonnet and an adjusting part, the valve body comprises a liquid inlet end, an insertion end and an adjusting end, the insertion end is used for allowing a first intervention consumable to be inserted, and the adjusting end is used for being connected with a second intervention consumable; the valve cap is connected to the insertion end; the adjusting piece comprises a sealing plug and an elastic piece, and the elastic piece is connected to the sealing plug and the valve bonnet. The sealing plug is provided with a through hole, the through hole is used for allowing the first intervention consumable to be inserted, and the state of the sealing plug and the first intervention consumable is switched between a first state and a second state along with the change of the pressure of liquid injected into the liquid inlet end; wherein in the first state, the first intervention consumable is fixed relative to the sealing plug; in the second state, the first intervention consumable can move relative to the sealing plug. A doctor can conveniently operate the intervention consumables to intervene into the blood vessel of a patient, and adverse effects on the surgical operation process due to wrong operation of the doctor are avoided.

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 interventional consumables such as guidewires and catheters 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 interventional vascular interventional surgery robots has become a reality.

[0003] In related operating equipment, doctors usually use multi-way valves to control the fixation or movement of interventional consumables, so that doctors can adjust the different movement states of interventional consumables through the multi-way valve, thereby performing different surgical operations on patients. Specifically, the multi-way valve includes a valve body and a valve cap, the valve body has three ports that are interconnected, and the valve cap is connected to one of the ports of the valve body. During the process of intervening in the patient's blood vessels, the interventional consumables are placed in the multi-way valve, and the valve cap is screwed to switch the interventional consumables between the fixed and moving states, thereby achieving surgical operations on the patient's blood vessels.

[0004] However, during the process of inserting the interventional consumable into the patient, since the doctor needs to frequently control the interventional consumable to switch between the fixed and moving states, the doctor may forget to screw the valve cap, causing the interventional consumable to move when it needs to be fixed or to be fixed when it needs to move, 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 shortcomings of the above-mentioned related technologies and to provide a multi-way valve for vascular interventional surgery, which can facilitate doctors to operate interventional consumables to intervene in patients' blood vessels and avoid doctors' erroneous operations that may adversely affect the surgical operation process.

[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, and an adjustment 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, and 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] A valve bonnet connected to the insertion end;

[0010] The regulating member includes a sealing plug and an elastic member, wherein the sealing plug is arranged at a side of the valve bonnet close to the insertion end, the elastic member is arranged at a side of the valve bonnet away from the insertion end, and the elastic member is connected to the sealing plug and the valve bonnet;

[0011] The sealing plug is provided with a through hole, and the through hole is used for inserting the first interventional consumable. As the pressure of the liquid injected at the liquid inlet end changes, the state of the sealing plug and the first interventional consumable switches between the first state and the second state;

[0012] In the first state, the first interventional consumable is inserted into the sealing plug, and the first interventional consumable is fixed relative to the sealing plug; in the second state, the first interventional consumable is inserted into the sealing plug, and the first interventional consumable can move relative to the sealing plug.

[0013] In an exemplary embodiment of the present disclosure, in a first state, the first liquid is injected into the liquid inlet end, the friction force between the sealing plug and the first interventional consumable is greater than the delivery force of the first interventional consumable, and the first interventional consumable is fixed relative to the sealing plug;

[0014] In the second state, the second liquid is injected into the liquid inlet end or no liquid is injected, the friction between the sealing plug and the first interventional consumable is smaller than the delivery force of the first interventional consumable, and the first interventional consumable moves relative to the sealing plug;

[0015] The pressure of the first liquid is greater than the pressure of the second liquid.

[0016] In an exemplary embodiment of the present disclosure, the sealing plug has elastic properties.

[0017] In an exemplary embodiment of the present disclosure, before the first interventional consumable is inserted into the through hole, a diameter of the through hole is smaller than an outer diameter of the first interventional consumable.

[0018] In an exemplary embodiment of the present disclosure, the sealing plug has a first end surface, a second end surface and a side surface connected between the first end surface and the second end surface which are arranged opposite to each other;

[0019] The first end surface of the sealing plug is located at a side of the sealing plug close to the insertion end, and the second end surface of the sealing plug is located at a side of the sealing plug away from the insertion end;

[0020] The orthographic projection of the second end surface of the sealing plug on the first end surface of the sealing plug is located within the first end surface of the sealing plug.

[0021] In an exemplary embodiment of the present disclosure, an inclination angle of the side surface of the sealing plug relative to the first end surface of the sealing plug is greater than 45° and less than 90°.

[0022] In an exemplary embodiment of the present disclosure, a plurality of blind holes are provided on a surface of the sealing plug facing the insertion end, and the plurality of blind holes are evenly distributed circumferentially around the center of the sealing plug.

[0023] In an exemplary embodiment of the present disclosure, a diameter of any one of the blind holes is greater than a diameter of the through hole.

[0024] In an exemplary embodiment of the present disclosure, the valve cap is provided with a cavity, and the cavity is provided with a first chamber and a second chamber which are interconnected;

[0025] The first chamber matches the shape of the elastic member, and the second chamber matches the shape of the sealing plug.

[0026] In an exemplary embodiment of the present disclosure, the multi-way valve further comprises:

[0027] A sealing member is arranged between the insertion end and the sealing plug.

[0028] The multi-way valve for vascular interventional surgery disclosed in the present invention comprises a valve body, a valve cap and an adjusting member. The valve body comprises a liquid inlet end, an insertion end and an adjusting 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, and the adjusting end is used for connecting with a second interventional consumable, and the first interventional consumable can be inserted into the second interventional consumable; the valve cap is connected to the insertion end; the adjusting member comprises a sealing plug and an elastic member, the sealing plug is arranged on a side of the valve cap close to the insertion end, the elastic member is arranged on a side of the valve cap away from the insertion end, and the elastic member is connected to the sealing plug and the valve cap; the sealing plug is provided with a through hole, the through hole is used for inserting the first interventional consumable, and as the pressure of the liquid injected at the liquid inlet end changes, the state of the sealing plug and the first interventional consumable switches between a first state and a second state; wherein, in the first state, the first interventional consumable is inserted into the sealing plug, and the first interventional consumable is fixed relative to the sealing plug; in the second state, the first interventional consumable is inserted into the sealing plug, and the first interventional consumable can move relative to the sealing plug. The multi-way valve for vascular intervention surgery disclosed in the present invention can facilitate doctors to operate interventional consumables to intervene in patients' blood vessels, thereby avoiding adverse effects on the surgical operation process caused by doctors' erroneous operations.

[0029] 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

[0030] 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.

[0031] Figure 1 Schematic diagram of the structure of the multi-way valve disclosed in the present invention.

[0032] Figure 2 yes Figure 1 Exploded diagram.

[0033] Figure 3 It is a schematic structural diagram of the multi-way valve of the present invention without inserting the first interventional consumable.

[0034] Figure 4 It is a schematic structural diagram of the first interventional consumable and the sealing plug of the present invention in a first state.

[0035] Figure 5 It is a schematic structural diagram of the first interventional consumable and the sealing plug in the second state of the present invention.

[0036] Figure 6 It is a schematic structural diagram of the sealing plug disclosed in the present invention.

[0037] Figure 7 It is a structural schematic diagram of the first interventional consumable inserted into the sealing plug of the present invention.

[0038] The main components in the figure are described as follows:

[0039] 1. Multi-way valve;

[0040] 2. The first interventional consumables;

[0041] 12. Adjustment parts; 13. Sealing parts;

[0042] 111. valve body; 112. valve bonnet;

[0043] 121. Sealing plug; 122. Elastic member;

[0044] 1111, liquid inlet end; 1112, adjustment end; 1113, insertion end;

[0045] 1121, cavity; 1122, first chamber; 1123, second chamber;

[0046] 1211, through hole; 1212, first end surface; 1213, second end surface; 1214, side surface; 1215, blind hole. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] The present disclosure provides a multi-way valve for vascular interventional surgery, including a valve body, a valve cap and an adjusting member. The valve body includes a liquid inlet end, an insertion end and an adjusting 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, and the adjusting end is used to connect with a second interventional consumable, and the first interventional consumable can be inserted into the second interventional consumable; the valve cap is connected to the insertion end; the adjusting member includes a sealing plug and an elastic member, the sealing plug is arranged on a side of the valve cap close to the insertion end, the elastic member is arranged on a side of the valve cap away from the insertion end, and the elastic member is connected to the sealing plug and the valve cap; the sealing plug is provided with a through hole, the through hole is used for inserting the first interventional consumable, and as the pressure of the liquid injected at the liquid inlet end changes, the state of the sealing plug and the first interventional consumable switches between a first state and a second state; wherein, in the first state, the first interventional consumable is inserted into the sealing plug, and the first interventional consumable is fixed relative to the sealing plug; in the second state, the first interventional consumable is inserted into the sealing plug, and the first interventional consumable can move relative to the sealing plug.

[0051] During the doctor's interventional surgery, the main function of the multi-way valve is to guide, place and lock the guidewire. During the operation, the multi-way valve is connected to the guide catheter, and then the guidewire cannula is inserted. The guidewire passes through the guidewire cannula and the guidewire torquer, and the guidewire torquer is pushed to slowly push the guidewire into the guide catheter. By using the multi-way valve to control the movement of medical equipment such as catheters and guidewires, the doctor's operation can be facilitated and the doctor's operation process can be simpler.

[0052] The present disclosure provides a multi-way valve 1, comprising a valve body 111, a valve cap 112 and a regulating member 12. Figure 1 and Figure 2 As shown, the valve body 111 is used as the core body of the multi-way valve 1 to perform corresponding operations on the interventional consumables disposed in the multi-way valve 1, and the regulating member 12 is used as the regulating unit of the multi-way valve 1 to perform corresponding adjustments on the motion state of the interventional consumables in the multi-way valve 1. The valve body 111 includes a liquid inlet end 1111, a regulating end 1112 and an insertion end 1113 extending outward from the center of the valve body 111 to form the valve body 111, and the regulating member 12 includes a sealing plug 121 and an elastic member 122.

[0053] The insertion end 1113 is used for inserting the first interventional consumable 2, and the adjustment end 1112 is used for connecting with the second interventional consumable, and the first interventional consumable 2 can be inserted into the second interventional consumable. It should be noted that the first interventional consumable 2 is usually an interventional medical device such as a guidewire or an intermediate catheter, and the second interventional consumable is an interventional medical device such as a catheter. Of course, the specific types of the first interventional consumable 2 and the second interventional consumable are not limited here.

[0054] Specifically, the valve cap 112 is connected to the insertion end 1113, and the first interventional consumable 2 is connected to the insertion end 1113, penetrating the insertion end 1113 and the valve cap 112. The sealing plug 121 is arranged on a side of the valve cap 112 close to the insertion end 1113, and the elastic member 122 is arranged on a side of the valve cap 112 away from the insertion end 1113, and the elastic member 122 is connected to the sealing plug 121 and the valve cap 112.

[0055] First, the valve cap 112 is connected to the insertion end 1113. On the one hand, the insertion end 1113 of the valve body 111 can be protected from external damage. On the other hand, other components provided inside the valve cap 112 can be used to adjust the different motion states of the first interventional consumable 2 passing through the valve body 111. Secondly, the first interventional consumable 2 is connected to the insertion end 1113, passes through the insertion end 1113 and the valve cap 112, and then passes through the valve body 111 and the adjustment end 1112. Since the first interventional consumable 2 passes through the adjustment end 1112 through the insertion end 1113 and is then inserted into the patient's blood vessel, the doctor can control the first interventional consumable 2 on the side away from the patient's blood vessel, which is convenient for the doctor's operation.

[0056] In addition, the sealing plug 121 is arranged on a side of the valve cap 112 close to the insertion end 1113, and the elastic member 122 is arranged on a side of the valve cap 112 away from the insertion end 1113. The elastic member 122 is connected to the sealing plug 121 and the valve cap 112. With the cooperation of the sealing plug 121, the elastic member 122 and the valve cap 112, the different movement states of the first interventional consumable 2 relative to the patient's blood vessel can be adjusted, thereby facilitating the doctor's operation and avoiding the doctor's incorrect operation.

[0057] It should be noted that before the interventional vascular surgery is performed, Figure 3 As shown, the first interventional consumable 2 is not inserted into the valve body 111 . At this time, the sealing plug 121 is in contact with the insertion end 1113 of the valve body 111 under the action of the elastic member 122 .

[0058] Furthermore, the sealing plug 121 is provided with a through hole 1211 for inserting the first interventional consumable 2. As the pressure of the injected liquid in the liquid inlet end 1111 changes, the sealing plug 121 and the first interventional consumable 2 switch between the first state and the second state. Figure 4 and Figure 5 As shown, in the first state, the first interventional consumable 2 is inserted into the sealing plug 121, and the first interventional consumable 2 is fixed relative to the sealing plug 121, that is, the sealing is better achieved; in the second state, the first interventional consumable 2 is inserted into the sealing plug 121, and the first interventional consumable 2 can move relative to the sealing plug 121, that is, the first interventional consumable 2 is allowed to move relative to the multi-way valve 1.

[0059] It should be noted that in the first state and the second state, there is a gap between the sealing plug 121 and the insertion end 1113 of the valve body 111, and in the first state, the gap between the sealing plug 121 and the insertion end 1113 of the valve body 111 is a first gap, and in the second state, the gap between the sealing plug 121 and the insertion end 1113 of the valve body 111 is a second gap, and the size of the first gap is greater than the size of the second gap.

[0060] Among them, during the process of interventional vascular treatment, different liquids need to be injected according to the different needs of the patients. For example, in the process of achieving treatment by moving the first interventional consumable 2 relative to the patient's blood vessels, it is necessary to inject liquids such as physiological saline and heparin into the patient's body through the liquid inlet end 1111; when the first interventional consumable 2 moves to a suitable position in the patient's blood vessel and needs to observe the internal information of the blood vessel at the current position, it is necessary to inject liquids such as contrast agents into the patient's body through the liquid inlet end 1111.

[0061] Since the injection pressure used when injecting liquids such as physiological saline and heparin is different from that when injecting liquids such as contrast agents, that is, the pressure when injecting different liquids is different, at the same time, the injected liquid will flow to the side toward the insertion end 1113 and the side toward the adjustment end 1112. Since the sealing plug 121 is arranged on the side close to the valve cap 112 on the side close to the insertion end 1113, and the sealing plug 121 is in contact with the inner wall of the valve cap 112, after the liquid is injected through the liquid inlet end 1111, the injected liquid is hindered by the sealing plug 121 and the valve cap 112 and cannot flow out in the direction of the valve cap 112, and can only exert a certain force on the first interventional consumable 2 arranged in the valve body 111.

[0062] Considering that after the first interventional consumable 2 is inserted into the sealing plug 121, corresponding friction will be generated between the side wall of the first interventional consumable 2 and the inner wall of the through hole 1211 of the sealing plug 121. At the same time, the first interventional consumable 2 is subjected to the force generated by the liquid injected into the valve body 111. Under two different forces, the first interventional consumable 2 will cause different movement states relative to the sealing plug 121. In the first state, the first interventional consumable 2 is fixed relative to the sealing plug 121, and in the second state, the first interventional consumable 2 moves relative to the sealing plug 121.

[0063] It is understandable that, when the doctor operates the first interventional consumable 2 to intervene in the patient's blood vessels, it is only necessary to inject corresponding liquid into the liquid inlet end 1111 of the valve body 111 during the operation according to different operation processes on the patient. For example, when it is necessary to collect images of the patient's interventional blood vessel, contrast agent is injected, so that the sealing plug 121 and the first interventional consumable 2 are in the first state, thereby achieving the fixation of the first interventional consumable 2 relative to the sealing plug 121. Similarly, when it is necessary to move the first interventional consumable 2 relative to the patient's interventional blood vessel, the corresponding liquid is injected, so that the sealing plug 121 and the first interventional consumable 2 are in the second state, and the movement of the first interventional consumable 2 relative to the sealing plug 121 is achieved.

[0064] Since the multi-way valve 1 disclosed in the present invention can automatically control the different movement states of the first interventional consumable 2 relative to the sealing plug 121 only by controlling the pressure change of the liquid at the liquid inlet end 1111 of the valve body 111, that is, different states of the first interventional consumable 2 relative to the valve body 111 can be realized. When the doctor controls the different movement states of the first interventional consumable 2 through the valve body 111 disclosed in the present invention, the doctor does not need to frequently adjust the valve body 111. It is only necessary to inject a specific liquid during the specific operation of the patient's surgery. Under the action of the injected liquid, the movement state of the first interventional consumable 2 can be automatically adjusted at the same time. This can avoid confusion caused by the doctor's frequent adjustment of the first interventional consumable 2 during the doctor's use of the first interventional consumable 2 to intervene in the patient, and avoid the doctor's erroneous operation that may cause adverse effects on the surgical operation process. This can facilitate the doctor's operation and improve the doctor's accuracy during the operation.

[0065] Optionally, the valve cap 112 and the insertion end 1113 are threadedly connected. Figure 2 As shown, since the valve bonnet 112 and the insertion end 1113 are threadedly connected, the valve bonnet 112 and the insertion end 1113 can be connected as a whole through threaded connection during the vascular interventional surgery to avoid the possibility of liquid leakage during the injection of liquid from the valve body 111; similarly, the valve bonnet 112 and the insertion end 1113 can be disassembled through threaded connection during the process of not performing vascular interventional surgery, so as to set a sealing plug 121 and an elastic member 122 and other structures inside the valve bonnet 112 and adjust the sealing plug 121, the elastic member 122 and other structures accordingly, so that the sealing plug 121, the elastic member 122 and other structures can work normally during the process of requiring vascular interventional surgery.

[0066] Optionally, the valve cap 112, the adjusting member 12 and the insertion end 1113 are integrally formed. Specifically, since the valve cap 112, the adjusting member 12 and the insertion end 1113 are integrally formed, when a doctor performs an interventional surgery, he only needs to insert the first interventional consumable 2 into the valve body 111 to perform a vascular interventional surgery on the patient, which can reduce the cumbersome process of assembling and debugging the multi-way valve 1, simplify the doctor's operation, and facilitate the doctor's operation.

[0067] The various parts of the multi-way valve 1 are described in detail below:

[0068] In an exemplary embodiment of the present disclosure, in the first state, as Figure 1 , Figure 2 and Figure 4 As shown, the first liquid is injected into the liquid inlet end 1111, the friction between the sealing plug 121 and the first interventional consumable 2 is greater than the delivery force of the first interventional consumable 2, and the first interventional consumable 2 is fixed relative to the sealing plug 121; in the second state, as Figure 1 , Figure 2 and Figure 5 As shown, when the second liquid is injected into the liquid inlet end 1111 or no liquid is injected into the valve body 111, the friction between the sealing plug 121 and the first interventional consumable 2 is less than the delivery force of the first interventional consumable 2, and the first interventional consumable 2 moves relative to the sealing plug 121. The pressure of the first liquid is greater than the pressure of the second liquid.

[0069] Specifically, when the doctor uses the first interventional consumable 2 to intervene in the patient's blood vessels, different interventional operations need to be performed on the patient's blood vessels according to the different surgical needs of the patient. When the first interventional consumable 2 runs to the part of the patient's blood vessel that needs to be observed, the first liquid, such as a contrast agent, is directly injected into the valve body 111 of the multi-way valve 1 through the liquid inlet end 1111 of the multi-way valve 1. Since the liquid pressure of the injected contrast agent is relatively large, the friction force between the sealing plug 121 and the first interventional consumable 2 is greater than the delivery force of the first interventional consumable 2, so that the first interventional consumable 2 is fixed relative to the sealing plug 121, thereby locking the position of the first interventional consumable 2, and then while the first interventional consumable 2 is fixed, the collection of the impact in the patient's blood vessels is achieved.

[0070] Similarly, when the first interventional consumable 2 needs to move relative to the patient's blood vessels to clear the patient's blocked blood vessels, it is only necessary to directly inject a second liquid, such as saline or heparin, into the valve body 111 of the multi-way valve 1 through the liquid inlet end 1111 of the multi-way valve 1. Since the pressure of the injected liquid such as saline or heparin is relatively small and less than the pressure of the injected first liquid such as contrast agent, the friction force between the sealing plug 121 and the first interventional consumable 2 is less than the delivery force of the first interventional consumable 2, so that the first interventional consumable 2 moves relative to the sealing plug 121 to achieve the delivery of the first interventional consumable 2, and then while injecting the second liquid to disinfect the patient, the blocked blood vessels of the patient are cleared through the delivery of the first interventional consumable 2.

[0071] During the process of vascular intervention on the patient, only different liquids need to be injected according to the needs, and the movement state of the first interventional consumable 2 can be automatically controlled synchronously while the liquid acts on the patient to produce corresponding effects, thereby achieving control over the first interventional consumable 2. This not only simplifies the doctor's operation process, but also makes the movement state of the first interventional consumable 2 correspond to the different needs of the patient's vascular intervention surgery process, greatly improving the doctor's operation efficiency.

[0072] In an exemplary embodiment of the present disclosure, the sealing plug 121 has elastic properties. Specifically, since the sealing plug 121 has elastic properties, the sealing plug 121 can be deformed accordingly when subjected to an external force, and when the external force disappears, the sealing plug 121 restores the structure before deformation. Wherein, when the first interventional consumable 2 is not inserted into the through hole 1211 of the sealing plug 121, the sealing plug 121 contacts the insertion end 1113 of the valve body 111, and the sealing plug 121 is in the original stretched state. When the first interventional consumable 2 is inserted into the through hole 1211 of the sealing plug 121, since the outer diameter of the first interventional consumable 2 is greater than the diameter of the through hole 1211, the sealing plug 121 will be deformed by the resistance of the first interventional consumable 2, and the diameter of the through hole 1211 in the sealing plug 121 will gradually expand until it is equal to the outer diameter of the first interventional consumable 2. And when liquids of different pressures are injected through the liquid inlet end 1111 of the multi-way valve 1, the state of the sealing plug 121 changes further.

[0073] On the one hand, since the sealing plug 121 has elastic properties, liquids of different pressures can be injected through the liquid inlet end 1111 of the multi-way valve 1 to squeeze the sealing plug 121. Through the elastic properties of the sealing plug 121, a corresponding elastic force is applied to the first interventional consumable 2, thereby making the first interventional consumable 2 and the sealing plug 121 switch between the first state and the second state. This can facilitate the doctor's operation during the intervention of the first interventional consumable 2 on the patient, and avoid the doctor's erroneous operation and adverse effects on the surgical operation process; on the other hand, since the sealing plug 121 has elastic properties, the first interventional consumable 2 can be used to perform the operation of the doctor. The sealing plug 121 is in contact with the side wall of the valve cap 112. After liquid is injected into the valve body 111, the injected liquid will flow to the sealing plug 121 and exert corresponding pressure on the sealing plug 121. Since the sealing plug 121 is in contact with the side wall of the valve cap 112 and the sealing plug 121 has elastic properties, after the sealing plug 121 is impacted by the liquid, the sealing plug 121 will be squeezed toward one side of the valve cap 112, so that the sealing plug 121 is in close contact with the valve cap 112, thereby preventing the liquid from passing through the valve cap 112 and affecting the surgical process.

[0074] It can be imagined that when the pressure of the liquid is greater, the impact of the liquid pressure on the sealing plug 121 is greater, and the sealing plug 121 and the valve cap 112 are more tightly abutted under the impact of the liquid, thereby further ensuring that the liquid cannot flow out through the valve cap 112, thereby improving the safety of the surgical operation process.

[0075] In an exemplary embodiment of the present disclosure, before the first interventional consumable 2 is inserted into the through hole 1211 , the diameter of the through hole 1211 is smaller than the outer diameter of the first interventional consumable 2 .

[0076] It can be understood that before the first interventional consumable 2 is inserted into the through hole 1211, the diameter of the through hole 1211 is smaller than the outer diameter of the first interventional consumable 2. Since the diameter of the through hole 1211 is smaller than the outer diameter of the first interventional consumable 2, during the interventional surgery on the patient, after the first interventional consumable 2 is inserted into the through hole 1211, the through hole 1211 will be subject to the resistance of the first interventional consumable 2 and the aperture will expand until it is equal to the outer diameter of the first interventional consumable 2.

[0077] For example, Figure 6 and Figure 7 As shown, after the first interventional consumable 2 is inserted into the through hole 1211, the diameter of the through hole 1211 is equal to the outer diameter of the first interventional consumable 2, and the sealing plug 121 fits with the insertion end 1113 of the valve body 111. When the first liquid is injected through the liquid inlet end 1111 of the multi-way valve 1, the first liquid will flow along the valve body 111 to the sealing plug 121, thereby pushing the sealing plug 121 to move the distance of the first gap. Since the pressure of the first liquid is relatively large, the friction between the sealing plug 121 and the first interventional consumable 2 is greater than the delivery force of the first interventional consumable 2, so that the first interventional consumable 2 can be fixed relative to the sealing plug 121. When the second liquid is injected through the liquid inlet end 1111 of the multi-way valve 1, the second liquid will also flow along the valve body 111 of the multi-way valve 1 to the sealing plug 121. Since the pressure of the second liquid is less than that of the first liquid, the sealing plug 121 only needs to move the distance of the second gap, and the second gap is smaller than the first gap. At this time, the friction force between the sealing plug 121 and the first interventional consumable 2 is smaller than the delivery force of the first interventional consumable 2 , so that the first interventional consumable 2 can move relative to the sealing plug 121 .

[0078] In an exemplary embodiment of the present disclosure, the sealing plug 121 has a first end surface 1212, a second end surface 1213 and a side surface 1214 connected between the first end surface 1212 and the second end surface 1213. Figure 6 As shown, the first end face 1212 of the sealing plug 121 is located on the side of the sealing plug 121 close to the insertion end 1113, and the second end face 1213 of the sealing plug 121 is located on the side of the sealing plug 121 away from the insertion end 1113; the orthographic projection of the second end face 1213 of the sealing plug 121 on the first end face 1212 of the sealing plug 121 is located within the first end face 1212 of the sealing plug 121.

[0079] Specifically, the first interventional consumable 2 is disposed in the through hole 1211 of the sealing plug 121. Figure 6 and Figure 7As shown, during the process in which the doctor controls the first interventional consumable 2 to intervene in the patient's blood vessel, when the first interventional consumable 2 moves or is fixed relative to the sealing plug 121, the doctor needs to inject liquid through the liquid inlet end 1111 of the multi-way valve 1. When the liquid is injected into the valve body 111 of the multi-way valve 1, the liquid will flow along the valve body 111 of the multi-way valve 1 to the first surface of the sealing plug 121. Since the orthographic projection of the second end face 1213 of the sealing plug 121 on the first end face 1212 of the sealing plug 121 is located within the first end face 1212 of the sealing plug 121, the area of ​​the first end face 1212 of the sealing plug 121 is larger than the area of ​​the second end face 1213. Therefore, when the first end face 1212 of the sealing plug 121 is impacted by the liquid, the first end face 1212 of the sealing plug 121 will move toward one side of the second end face 1213 of the sealing plug 121, so that the side surface 1214 of the sealing plug 121 further squeezes the valve cap 112.

[0080] On the one hand, since the orthographic projection of the second end face 1213 of the sealing plug 121 on the first end face 1212 of the sealing plug 121 is located within the first end face 1212 of the sealing plug 121, the area of ​​the first end face 1212 of the sealing plug 121 is larger than the area of ​​the second end face 1213 of the sealing plug 121, so that when the liquid impacts the first end face 1212 of the sealing plug 121, the side surface 1214 of the sealing plug 121 and the inner surface of the valve cap 112 are more closely abutted, thereby ensuring that the liquid cannot pass through the sealing plug 121, thereby preventing the liquid from flowing out of the valve cap 112 and affecting the normal operation; on the other hand, when the liquid impacts the first surface of the sealing plug 121, since the liquid cannot pass through the sealing plug 121, the first surface of the sealing plug 121 will impact the inner surface of the valve cap 112 disposed on the sealing plug 12 The first interventional consumable 2 in the through hole 1211 of the sealing plug 121 generates a reverse force acting on the first interventional consumable 2, thereby realizing control over different states of the first interventional consumable 2. At the same time, since the orthographic projection of the second end surface 1213 of the sealing plug 121 on the first end surface 1212 of the sealing plug 121 is located within the first end of the sealing plug 121, the side surface 1214 of the sealing plug 121 is inclined to the first end surface 1212 of the sealing plug 121. Under the impact of the liquid, the side surface 1214 of the sealing plug 121 provides the first interventional consumable 2 with a force inclined to the first end surface 1212 of the sealing plug 121, thereby further improving the force of the sealing plug 121 on the first interventional consumable 2, and improving the control effect of the sealing plug 121 on the first interventional consumable 2.

[0081] In an exemplary embodiment of the present disclosure, the inclination angle of the side surface 1214 of the sealing plug 121 relative to the first end surface 1212 of the sealing plug 121 is greater than 45° and less than 90°. Figure 4 and Figure 5As shown, since the inclination angle of the side surface 1214 of the sealing plug 121 relative to the first end surface 1212 of the sealing plug 121 is greater than 45° and less than 90°, the length of the sealing plug 121 along the axial direction of the through hole 1211 is greater than the length of the sealing plug 121 perpendicular to the axial direction of the through hole 1211. On the one hand, after the first interventional consumable 2 is inserted into the through hole 1211, the first interventional consumable 2 has a larger contact area with the sealing plug 121 in the axial direction of the through hole 1211, thereby ensuring that the sealing plug 121 can provide a larger reverse force for the first interventional consumable 2 under the impact of the liquid, so that the first interventional consumable 2 can be better switched between the first state and the second state relative to the sealing plug 121, avoiding the first interventional consumable 2 not being able to switch well between the first state and the second state due to the small contact area between the first interventional consumable 2 and the sealing plug 121 in the axial direction of the through hole 1211.

[0082] In addition, if the inclination angle of the side surface 1214 of the sealing plug 121 relative to the first end surface 1212 of the sealing plug 121 is less than 45°, the length of the sealing plug 121 along the axis direction of the through hole 1211 will be less than the length of the sealing plug 121 perpendicular to the axis direction of the through hole 1211, which will cause the length of the sealing plug 121 perpendicular to the axis direction of the through hole 1211 to be too large. Since the sealing plug 121 needs to be inserted into the valve cap 112, and the valve cap 112 is connected to the insertion end 1113 of the valve body 111, the pipe diameters of the valve cap 112 and the valve body 111 will be enlarged, affecting the manufacturing cost and normal use of the multi-way valve 1. On the contrary, since the inclination angle of the side surface 1214 of the sealing plug 121 relative to the first end surface 1212 of the sealing plug 121 is greater than 45° and less than 90°, the valve body 111 and the valve cap 112 of the multi-way valve 1 can have a smaller pipe diameter, which is convenient for doctors to operate and the production of the multi-way valve 1.

[0083] In an exemplary embodiment of the present disclosure, in a first state, the side surface 1214 of the sealing plug 121 abuts against the inner wall of the valve bonnet 112 and generates a first force; in a second state, the side surface 1214 of the sealing plug 121 abuts against the inner wall of the valve bonnet 112 and generates a second force; the magnitude of the first force is greater than the magnitude of the second force.

[0084] like Figure 4 , Figure 5 and Figure 6As shown, in the process of injecting liquid through the liquid inlet end 1111 of the multi-way valve 1, when the first liquid is injected, due to the greater pressure of the first liquid, the first liquid will generate a greater impact force on the sealing plug 121, so that the side surface 1214 of the sealing plug 121 abuts against the inner wall of the valve cap 112 and generates a first force to achieve a tight connection. While preventing the liquid from passing through the sealing plug 121, a greater force is applied to the first interventional consumable 2 through the sealing plug 121, so that the friction force between the sealing plug 121 and the first interventional consumable 2 is greater than the delivery force of the first interventional consumable 2, thereby fixing the first interventional consumable 2 relative to the sealing plug 121.

[0085] Similarly, when the second liquid is injected, due to the smaller pressure of the second liquid, the second liquid will generate a smaller impact force on the sealing plug 121, so that the side surface 1214 of the sealing plug 121 abuts against the inner wall of the valve cap 112 and generates a second force. Although the magnitude of the second force is smaller than the magnitude of the first force, the side surface 1214 of the sealing plug 121 is still tightly connected to the inner wall of the valve cap 112 to prevent the liquid from passing through the sealing plug 121. However, since the magnitude of the second force is smaller than the magnitude of the first force, only a smaller force can be applied to the first interventional consumable 2 through the sealing plug 121, so that the friction between the sealing plug 121 and the first interventional consumable 2 is smaller than the delivery force of the first interventional consumable 2, thereby causing the first interventional consumable 2 to move relative to the sealing plug 121.

[0086] In an exemplary embodiment of the present disclosure, a plurality of blind holes 1215 are provided on a side surface 1214 of the sealing plug 121 facing the insertion end 1113. Figure 6 As shown, a plurality of blind holes 1215 are evenly distributed circumferentially around the center of the sealing plug 121 .

[0087] During the operation of the first interventional consumable 2 intervening in the patient's blood vessel, liquids with different pressures need to be injected into the multi-way valve 1. However, regardless of the liquid pressure, the injection of liquid into the multi-way valve 1 will produce a large impact force on the side surface 1214 of the sealing plug 121 facing the insertion end 1113. Since the sealing plug 121 has elastic properties and the first interventional consumable 2 passes through the through hole 1211 of the sealing plug 121, under the large liquid impact force, the side surface 1214 of the sealing plug 121 facing the insertion end 1113 will be severely deformed, and even damage the sealing plug 121. By providing a plurality of blind holes 1215 on a side surface 1214 of the sealing plug 121 facing the insertion end 1113, and the plurality of blind holes 1215 are evenly distributed circumferentially around the center of the sealing plug 121, when liquid impacts the side surface 1214 of the sealing plug 121 facing the insertion end 1113, the impact force exerted on the through hole 1211 of the sealing plug 121 and the side surface 1214 of the sealing plug 121 facing the insertion end 1113 can be distributed through the plurality of blind holes 1215 near the through hole 1211 of the sealing plug 121, thereby making the force on the side surface 1214 of the sealing plug 121 facing the insertion end 1113 uniform.

[0088] In an exemplary embodiment of the present disclosure, the diameter of any blind hole 1215 is larger than the diameter of the through hole 1211. Specifically, during the process of liquid being injected into the multi-way valve 1, the liquid exerts a relatively large impact force on the side surface 1214 of the sealing plug 121 facing the insertion end 1113. Since the diameter of any blind hole 1215 is larger than the diameter of the through hole 1211, the blind hole 1215 with a larger diameter will preferentially bear the impact force of the liquid, thereby preferentially sharing the impact force on the side surface 1214 of the sealing plug 121 facing the insertion end 1113 through the blind hole 1215 with a larger diameter, thereby maximally sharing the impact force on the through hole 1211 of the sealing plug 121 and the side surface 1214 of the sealing plug 121 facing the insertion end 1113, thereby further improving the usability of the sealing plug 121.

[0089] In an exemplary embodiment of the present disclosure, the valve cap 112 is provided with a cavity 1121, such as Figure 3 As shown, the cavity 1121 is provided with a first chamber 1122 and a second chamber 1123 which are interconnected; the first chamber 1122 matches the shape of the elastic member 122 , and the second chamber 1123 matches the shape of the sealing plug 121 .

[0090] It can be understood that since the sealing plug 121 and the elastic member 122 are both arranged in the valve bonnet 112, but the sealing plug 121 and the elastic member 122 have different structures, the sealing plug 121 needs to fit tightly with the side wall of the valve bonnet 112 in order to play a corresponding role, and the elastic member 122 only needs to play the role of a rebound seal 13, and does not need to fit tightly with the side wall of the valve bonnet 112. The cavity 1121 in the valve bonnet 112 is set to a first chamber 1122 and a second chamber 1123 that are interconnected. The first chamber 1122 matches the shape of the elastic member 122, and the second chamber 1123 matches the shape of the sealing plug 121. This can make the sealing plug 121 and the elastic member 122 work in their respective corresponding chambers without causing interference, and can also make the valve bonnet 112 not produce unnecessary space waste or material waste after production, thereby improving the overall use efficiency of the multi-way valve 1.

[0091] In an exemplary embodiment of the present disclosure, the multi-way valve 1 further includes a sealing member 13. Figure 1 and Figure 2 As shown, the sealing plug 121 is arranged between the insertion end 1113 and the sealing plug 121. Among them, since the sealing plug 121 is arranged in the valve cap 112, when the multi-way valve 1 is used, the valve cap 112 needs to be connected with the insertion end 1113. However, the valve cap 112 and the insertion end 1113 are only mechanically connected. It is easy for the liquid to flow out through the gap between the valve cap 112 and the insertion end 1113 after the liquid is injected into the liquid inlet end 1111 of the multi-way valve 1, thereby affecting the normal operation. By arranging the sealing member 13 between the insertion end 1113 and the sealing plug 121, it is possible to avoid the possibility of liquid being injected into the multi-way valve 1 and leaking between the insertion end 1113 and the sealing plug 121, thereby improving the accuracy of the use of the multi-way valve 1.

[0092] 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, the valve body comprising a liquid inlet end, an insertion end and an adjustment 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; a valve bonnet connected to the insertion end; An adjusting member, the adjusting member comprising a sealing plug and an elastic member, the sealing plug being arranged at a side of the valve bonnet close to the insertion end, the elastic member being arranged at a side of the valve bonnet away from the insertion end, and the elastic member being connected to the sealing plug and the valve bonnet; The sealing plug is provided with a through hole, the through hole is used for inserting the first interventional consumable, and as the pressure of the liquid injected at the liquid inlet end changes, the state of the sealing plug and the first interventional consumable switches between a first state and a second state; Wherein, in the first state, the first interventional consumable is inserted into the sealing plug and is fixed relative to the sealing plug; in the second state, the first interventional consumable is inserted into the sealing plug and is movable relative to the sealing plug.

2. The multi-way valve according to claim 1, characterized in that: In the first state, the first liquid is injected into the liquid inlet end, the friction force between the sealing plug and the first interventional consumable is greater than the delivery force of the first interventional consumable, and the first interventional consumable is fixed relative to the sealing plug; In the second state, the second liquid is injected into the liquid inlet end or no liquid is injected, the friction between the sealing plug and the first interventional consumable is smaller than the delivery force of the first interventional consumable, and the first interventional consumable moves relative to the sealing plug; Wherein, the pressure of the first liquid is greater than the pressure of the second liquid.

3. The multi-way valve according to claim 2, characterized in that: The sealing plug has elastic properties.

4. The multi-way valve according to claim 3, characterized in that: Before the first interventional consumable is inserted into the through hole, a diameter of the through hole is smaller than an outer diameter of the first interventional consumable.

5. The multi-way valve according to any one of claims 1 to 4, characterized in that: The sealing plug has a first end surface, a second end surface and a side surface connected between the first end surface and the second end surface. The first end surface of the sealing plug is located at a side of the sealing plug close to the insertion end, and the second end surface of the sealing plug is located at a side of the sealing plug away from the insertion end; The orthographic projection of the second end face of the sealing plug on the first end face of the sealing plug is located within the first end face of the sealing plug.

6. The multi-way valve according to claim 5, characterized in that: The inclination angle of the side surface of the sealing plug relative to the first end surface of the sealing plug is greater than 45° and less than 90°.

7. The multi-way valve according to any one of claims 1 to 4, characterized in that: A plurality of blind holes are arranged on a surface of one side of the sealing plug facing the insertion end, and the plurality of blind holes are evenly distributed in a circumferential direction around the center of the sealing plug.

8. The multi-way valve according to claim 7, characterized in that: The diameter of any one of the blind holes is larger than the diameter of the through hole.

9. The multi-way valve according to any one of claims 1 to 4, characterized in that: The valve cap is provided with a cavity, and the cavity is provided with a first cavity and a second cavity which are interconnected; The first chamber matches the shape of the elastic member, and the second chamber matches the shape of the sealing plug.

10. The multi-way valve according to any one of claims 1 to 4, characterized in that: The multi-way valve further comprises: A sealing member is arranged between the insertion end and the sealing plug.

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