Multi-way valve for vascular interventional operation, consumable box and interventional operation robot

Abstract

The multi-way valve comprises a valve body, a valve bonnet and a sealing piece, the valve bonnet is provided with a through hole penetrating through the first end and the second end of the valve bonnet and extending in the axial direction, the second end is connected to the valve body, at least part of the through hole forms a conical hole, and the sealing piece is arranged in the conical hole. The taper hole is gradually enlarged from the first end to the second end; the sealing piece comprises an elastic sealing plug, the elastic sealing plug is provided with an outer conical surface formed between the top end and the bottom end and a penetrating center hole, and the sealing piece is installed between the valve bonnet and the inlet end of the valve body, so that the elastic sealing plug is matched in the conical hole. By means of the structure, automatic sealing of the inlet end of the valve body and automatic locking and unlocking of the second long straight intervention consumable can be achieved, use of the multi-way valve is simplified, and safety of an operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a multi-way valve for vascular intervention surgery, a consumables box for a vascular intervention surgery robot, and a vascular intervention surgery robot. Background Art

[0002] Vascular interventional surgery is an operation technique that uses guidewires, catheters, stents and other instruments to diagnose and treat through vascular pathways under the guidance of medical imaging equipment. Traditional vascular interventional surgery needs to be performed under the ionizing radiation of X-rays, and medical staff need to wear heavy lead suits for safety protection. The emergence of interventional surgical robots has improved the unfavorable environment for medical staff. During the interventional surgery, doctors and patients can be isolated to reduce the risk of cross-infection; at the same time, medical staff can perform surgical operations quickly, accurately and without vibration by referring to the precise positioning of medical images and setting the operating table away from the radiation. This can shorten the time it takes for the equipment to be in place, improve surgical accuracy and reduce surgical complications.

[0003] In existing vascular interventional surgeries, the tail of the multi-way valve requires frequent manual operation by doctors. When contrast agents or other liquids need to be injected, the tail of the multi-way valve needs to be tightened, and when a guide wire needs to be delivered, the tail of the multi-way valve needs to be loosened. During the frequent operation, doctors often forget to tighten the tail of the multi-way valve, causing liquid to spray out of the tail of the multi-way valve, contaminating the bed sheets or spraying onto the doctor's body, or forget to loosen the tail of the multi-way valve, making the guide wire unable to move.

[0004] Although automatic control can be achieved by installing an actuator at the tail of the multi-way valve, such as using a motor to rotate gears to tighten or loosen the tail of the multi-way valve when performing surgery with the help of a vascular interventional surgical robot, due to the large number of guidewire types, the motor cannot achieve precise control based on each specification of guidewire, so that guidewires of various specifications can move smoothly when passing through the multi-way valve without liquid flowing out.

[0005] Therefore, there is an urgent need to provide a multi-way valve for vascular intervention surgery that is easy to operate and has reliable sealing. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-way valve for interventional surgery, a consumable box comprising such a multi-way valve, and an interventional surgery robot, so as to at least partially overcome the deficiencies in the prior art.

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

[0008] The valve body comprises a main path and an injection path which are interconnected, wherein the main path has a connection end for connecting a first long straight interventional consumable and at least one entry end for a second long straight interventional consumable to enter, and the injection path is used to inject liquid required for interventional surgery into the valve body, and the second long straight interventional consumable can be inserted into the first long straight interventional consumable;

[0009] a valve cap having a first end and a second end and a through hole extending axially through the first end and the second end, the second end being used for sealing connection with the entry end, at least a portion of the through hole being formed as a tapered hole having a radial dimension that gradually increases in a direction pointing from the first end to the second end; and

[0010] A sealing member comprising an elastic sealing plug,

[0011] The elastic sealing plug has a top end, a bottom end, an outer conical surface formed between the top end and the bottom end, and a center hole extending through the top end and the bottom end. The sealing member is installed between the valve cap and the entry end, and the bottom end of the elastic sealing plug is close to the entry end, so that the elastic sealing plug fits in the conical hole, and the center hole is used for the second long straight interventional consumable to pass through and be sealed with it. When the liquid is injected into the valve body, the elastic sealing plug is extruded and deformed under the action of the liquid pressure, so that the outer conical surface and the hole wall of the center hole are respectively fitted with the inner wall of the conical hole and the outer surface of the second long straight interventional consumable to achieve sealing.

[0012] Advantageously, the generatrix of the outer conical surface of the elastic sealing plug is a straight line.

[0013] Advantageously, the elastic sealing plug is formed with at least one cavity recessed from the bottom end toward the top end.

[0014] Advantageously, the cavities are blind holes and there are multiple of them, and the multiple blind holes are arranged around the central hole.

[0015] Advantageously, the seal also includes an annular elastic flange connected to the bottom end of the elastic sealing plug, the second end of the valve cap has a first mounting surface, the entry end of the valve body has a second mounting surface, and the elastic flange is clamped between the first mounting surface and the second mounting surface to form a sealing fit.

[0016] Advantageously, the sealing member further comprises an annular retractable structure, wherein the retractable structure is connected between the bottom end of the elastic sealing plug and the elastic flange.

[0017] Advantageously, the retractable structure forms a sealed connection between the elastic sealing plug and the elastic flange; and / or the retractable structure is a folding structure; and / or the sealing member is an integrally formed silicone member.

[0018] Advantageously, the through hole is provided with a step surface at the first end, and the multi-way valve further comprises an elastic member arranged in the through hole, and both ends of the elastic member are respectively in contact with the step surface and the top end of the elastic sealing plug.

[0019] According to another aspect of the present invention, a consumable box for a vascular interventional surgery robot is provided, the consumable box comprising a shell and the multi-way valve as described above installed in the shell.

[0020] According to another aspect of the present invention, a vascular intervention surgery robot is provided, the vascular intervention surgery robot comprising:

[0021] A robot body, comprising a main body and a driving module, wherein the driving module is mounted on the main body and can move relative to the main body;

[0022] a consumables box, which is mounted on the driving module, wherein the multi-way valve as described above is installed in the consumables box; and

[0023] A control system is connected to the driving module for controlling the movement of the driving module.

[0024] The elastic sealing plug of the valve cap and the sealing member in the multi-way valve for vascular interventional surgery of the utility model is constructed to have mutually adapted conical structures, and the direction of the conical structure is configured so that when liquid is injected into the valve body, the liquid pressure presses the elastic sealing plug more tightly into the conical hole in the valve cap, thereby improving the sealing force between the above-mentioned conical structures. At the same time, the elastic sealing plug is squeezed and deformed under the action of the liquid pressure, so that the hole wall of the central hole of the elastic sealing plug fits more closely to the outer surface of the second long straight interventional consumable, thereby improving the sealing force and clamping force between the sealing member and the second long straight interventional consumable. In addition, when the liquid pressure decreases, the clamping force of the sealing member on the second long straight interventional consumable decreases accordingly, thereby being able to automatically restore the operational flexibility of the second long straight interventional consumable. Through the above structure, the automatic sealing of the entry end of the valve body and the automatic locking and unlocking of the second long straight interventional consumable can be achieved, which simplifies the use of the multi-way valve and improves the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1It is a schematic stereoscopic diagram of a multi-way valve for vascular intervention surgery according to the first embodiment of the utility model;

[0027] Figure 2 It is a schematic exploded view of parts of a multi-way valve according to the first embodiment of the utility model;

[0028] Figure 3 It is a cross-sectional structural schematic diagram of a multi-way valve according to the first embodiment of the utility model;

[0029] Figure 4 The structure of the valve cap and the sealing member of the multi-way valve according to the first embodiment of the utility model is schematically shown in a cross-sectional view;

[0030] Figure 5 It is a schematic exploded view of parts of a multi-way valve according to the second embodiment of the utility model;

[0031] Figure 6 It is a structural schematic diagram of a sealing member of a multi-way valve according to the second embodiment of the utility model;

[0032] Figure 7 It is a partial cross-sectional view of a multi-way valve according to the second embodiment of the present utility model, showing different examples of the connection structure between the valve cap and the valve body and the installation state of the sealing member between the two;

[0033] Figure 8 Schematic diagram of the cross-sectional structure of a multi-way valve according to Embodiment 3 of the present utility model;

[0034] Fig. 9 It is a partial cross-sectional view of a multi-way valve according to the third embodiment of the present utility model, showing the installation state of the sealing member between the valve cap and the inlet end of the valve body;

[0035] Fig.10 It is a side view of a sealing member of a multi-way valve according to the third embodiment of the utility model, wherein the retractable structure of the sealing member is a folding structure;

[0036] Fig.11 It is a schematic diagram of a consumable box for a vascular interventional surgery robot according to an embodiment of the utility model;

[0037] Fig.12 It is a schematic diagram of a vascular interventional surgery robot according to an embodiment of the utility model. DETAILED DESCRIPTION

[0038] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. For ease of description, only the parts related to the utility model are shown in the accompanying drawings. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict.

[0039] First of all, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, in the description of this application, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In addition, it should be noted that in the description of the present application, terms such as "upper", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the structure must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0041] First, refer to Figures 1 to 4 The multi-way valve V1 according to the first embodiment of the present utility model is introduced.

[0042] Figure 1 It is a schematic stereoscopic diagram of a multi-way valve V1 for vascular intervention surgery according to the first embodiment of the utility model; Figure 2 is a schematic exploded view of the parts of the multi-way valve V1; Figure 3 FIG. 1 is a schematic diagram of the cross-sectional structure of the multi-way valve V1. Figures 1 to 3 As shown, the multi-way valve V1 includes a valve body 1 , a valve cap 2 and a sealing member 3 . Figure 4 The structures of the valve cap 2 (see Figure (a)) and the sealing member 3 (see Figure (b)) of the multi-way valve V1 according to the first embodiment of the present invention are schematically shown in cross-sectional views.

[0043] like Figure 1 As shown, the valve body 1 includes a main path 11 and an injection path 12 that are interconnected. The main path 11 has a connection end 111 and at least one entry end 112. The connection end 111 is used to connect the first long straight interventional consumable C1, and the entry end 112 is used to allow the second long straight interventional consumable C2 to enter the multi-way valve V1, and the second long straight interventional consumable C2 can be inserted into the first long straight interventional consumable C1. The injection path 12 is used to inject liquid required for interventional surgery into the valve body 1.

[0044] Here, long straight interventional consumables refer to consumables for intervention into the human body, such as catheters, guidewires, and stents. Such long straight interventional consumables are usually discarded after a single use. The first long straight interventional consumable C1 that can be used in combination with the multi-way valve V1 according to the embodiment of the utility model can be, for example, a catheter; the second long straight interventional consumable C2 that can be used in combination with the multi-way valve V1 according to the embodiment of the utility model can be a guidewire, a stent, or a catheter. The first long straight interventional consumable C1 is generally fixed to the connecting end 111 of the multi-way valve V1 before the second long straight interventional consumable C2 penetrates the multi-way valve V1. In vascular interventional surgery, such as Figure 1 As shown, the second long straight interventional consumable C2 enters the valve body 1 from the entry end 112 of the main path 11, extends from the connection end 111, and is thus passed through the first long straight interventional consumable C1.

[0045] like Figure 3 and Figure 4 As more clearly shown in FIG. 1 , the valve cap 2 has a first end 21, a second end 22, and a through hole 23 extending axially through the first end 21 and the second end 22, and the second end 22 is used for sealing connection with the inlet end 112 of the valve body 1. Figure 4 As shown in the middle figure (a), at least a portion of the through hole 23 is formed as a tapered hole 231, and the tapered hole 231 has a radial dimension that gradually increases along the direction from the first end 21 to the second end 22.

[0046] According to the embodiment of the utility model, the sealing member 3 includes an elastic sealing plug 31, the elastic sealing plug 31 has a top end 311, a bottom end 312, an outer conical surface 313 formed between the top end 311 and the bottom end 312, and a central hole 314 extending through the top end 311 and the bottom end 312. Figure 4 As shown in Figure (b). Figure 3 As shown, the seal 3 is installed between the valve cap 2 and the entry end 112 of the valve body 1, and the bottom end 312 of the elastic sealing plug 31 is close to the entry end 112, so that the elastic sealing plug 31 fits in the tapered hole 231. The center hole 314 of the seal 3 is for the second long straight intervention consumable C2 to pass through, and forms a sealed connection with the second long straight intervention consumable C2. When the multi-way valve V1 according to the embodiment of the utility model is in use, after the liquid is injected into the valve body 1, the elastic sealing plug 31 is squeezed and deformed under the action of the liquid pressure, so that the outer cone 313 and the hole wall of the center hole 314 are respectively fitted with the inner wall of the tapered hole 231 and the outer surface of the second long straight intervention consumable C2 to achieve sealing.

[0047] The elastic sealing plug of the valve cap and the sealing member in the multi-way valve for vascular interventional surgery of the embodiment of the utility model is constructed to have mutually adapted conical structures, and the direction of the conical structure is configured so that when liquid is injected into the valve body, the liquid pressure presses the elastic sealing plug more tightly into the conical hole in the valve cap, thereby improving the sealing force between the above-mentioned conical structures. At the same time, the elastic sealing plug is squeezed and deformed under the action of the liquid pressure, so that the hole wall of the central hole of the elastic sealing plug fits more closely to the outer surface of the second long straight interventional consumable, thereby improving the sealing force and clamping force between the sealing member and the second long straight interventional consumable. In addition, when the liquid pressure decreases, the clamping force of the sealing member on the second long straight interventional consumable decreases accordingly, thereby being able to automatically restore the operational flexibility of the second long straight interventional consumable. Through the above structure, the automatic sealing of the entry end of the valve body and the automatic fixation of the second long straight interventional consumable can be achieved, which simplifies the use of the multi-way valve and improves the safety of the operation.

[0048] In each example shown in the drawings of the present application, the main path 11 of the valve body 1 has two entry ends 112, which can be used to introduce the same or different second long straight interventional consumables C2. For example, according to the needs of the operation, the two entry ends 112 can be used for a vascular stent and a guide wire for guiding the positioning of the stent, respectively. It should be understood that the utility model is not limited in this regard. In other examples, the valve body 1 of the multi-way valve V1 can have more or fewer entry ends 112.

[0049] The injection path 12 of the valve body 1 can be integrally formed with the main path 11 of the valve body 1 by, for example, injection molding, or can be formed separately from the main path 11 and sealed together by an appropriate method, such as by thermal welding. In addition, by way of example only and not limitation, the injection path 12 can have, for example, a Luer male connector for connecting and injecting liquids such as contrast agents, heparin, and saline.

[0050] In the example shown in the drawings, the generatrix of the outer conical surface 313 of the elastic sealing plug 31 is a straight line. Preferably, the taper angle of the outer conical surface 313 is the same as the taper angle of the tapered hole 231 of the valve cap 2. However, it should be understood that in the present application, the "conical surface" is not limited to the surface formed by rotating around the central axis with a straight line as the generatrix in strict geometric mathematics, but is intended to cover other situations where the generatrix is ​​a non-straight line (such as an arc), as long as the "conical surface" has the characteristic of gradually shrinking from one end to the other end.

[0051] According to a preferred embodiment of the present utility model, Figure 4As shown in the middle figure (b), the elastic sealing plug 31 may be formed with at least one cavity 315 recessed from the bottom end 312 toward the top end 311. The cavity 315 may include an annular recessed portion or a plurality of separated recessed portions surrounding the center hole 314. The provision of the cavity 315 is conducive to converting the liquid pressure in the elastic sealing plug 31 into an extrusion force toward the center hole 314 and toward the outer conical surface 313, respectively, so as to improve the sealing force and the clamping force on the second long straight consumable C2.

[0052] Advantageously, the cavity 315 may be a plurality of blind holes 315 arranged around the central hole 314 (see Figure 6 The sealing member 3 constructed in this way is conducive to utilizing the liquid pressure to improve the sealing force and the clamping force, and can also maintain the structural strength of the sealing member 3 itself, thereby avoiding the problem of sealing failure caused by severe deformation of the elastic sealing plug 31.

[0053] Next, refer to Figures 5 to 7 The multi-way valve V2 according to the second embodiment of the present utility model is introduced.

[0054] Figure 5 is a schematic exploded view of the parts of the multi-way valve V2; Figure 6 Schematic diagram of the structure of the sealing member 3' of the multi-way valve V2 according to the second embodiment of the present invention. The multi-way valve V2 according to the second embodiment has a substantially same structure as the multi-way valve V1 according to the first embodiment, and the main difference is that: Figure 5 and Figure 6 As shown, the sealing member 3' of the multi-way valve V2 includes an annular elastic flange 32 in addition to the elastic sealing plug 31, and the elastic flange 32 is connected to the bottom end 312 of the elastic sealing plug 31. The elastic flange 32 can provide further sealing between the second end 22 of the valve bonnet 2 and the entry end 112 of the valve body 1. Specifically, the second end 22 of the valve bonnet 2 can be provided with a first mounting surface 221, the entry end 112 of the valve body 1 can be provided with a second mounting surface 112a, and the elastic flange 32 is sandwiched between the first mounting surface 221 and the second mounting surface 112a to form a sealing fit.

[0055] For illustrative purposes only, Figure 7 Different examples of the connection structure between the valve cap 2 and the valve body 1 and the installation state of the sealing member 3 ′ therebetween are shown. Figure 7 In the example shown in Figure (a), the second end 22 of the valve bonnet 2 is formed with an internal thread and a step surface, which constitutes a first mounting surface 221; the entry end 112 of the valve body 1 is formed with an external thread, and the end surface of the entry end 112 is constituted as a second mounting surface 112a; the elastic flange 32 is clamped between the step surface / first mounting surface 221 of the second end 22 and the end surface / second mounting surface 112a of the entry end 112. Figure 7In the example shown in Figure (b), the second end 22 of the valve bonnet 2 is formed with an external thread, and the end surface of the second end 22 is configured as a first mounting surface 221; the entry end 112 of the valve body 1 is formed with an internal thread and has a step surface, which is configured as a second mounting surface 112a; the elastic flange 32 is clamped between the end surface / first mounting surface 221 of the second end 22 and the step surface / second mounting surface 112a of the entry end 112.

[0056] The elastic flange 32 can also provide a restoring force for the elastic sealing plug 31. That is, when the elastic sealing plug 31 moves or deforms toward the tapered hole 231 of the valve cap 2 and moves away from the elastic flange 23, the elastic flange 32 generates a restoring pulling force on the elastic sealing plug 31. This is conducive to restoring the position and / or shape of the elastic sealing plug 31 when the liquid pressure decreases, thereby reducing the clamping force on the second long straight interventional consumable C2 and restoring the operational flexibility of the second long straight interventional consumable C2.

[0057] Preferably, if Figure 5 As shown, the multi-way valve V2 according to the second embodiment of the present invention further includes an elastic member 4, which is disposed in the through hole 23 of the valve cap 2 and abuts against the top end 311 of the elastic sealing plug 31, so as to provide a restoring force for the elastic sealing plug 31. Figure 7 As shown, the through hole 23 of the valve cap 2 may be provided with a step surface 232 at the first end 21, and both ends of the elastic member 4 may respectively abut against the step surface 232 and the top end 311 of the elastic sealing plug 31. The elastic member 4 is preferably a coil spring.

[0058] During installation, the elastic member 4 and the sealing member 3' are sequentially placed into the through hole 23 of the valve bonnet 2, and then the valve bonnet 2 is screwed onto the inlet end 112 of the valve body 1, so that the elastic flange 32 of the sealing member 3' is sandwiched between the first mounting surface and the second mounting surface to form a complete multi-way valve.

[0059] When in use, in a natural state, the elastic flange 32 of the sealing member 3' fits with the entry end 112 of the valve body 1, the outer conical surface 313 of the elastic sealing plug 31 fits with the conical hole 231 of the valve cap 2, and the middle hole 314 of the elastic sealing plug 31 remains in a small diameter state. In this state, the second long straight consumable C2 (such as a guide wire) with a thicker diameter passes through the center hole 314, squeezing the elastic sealing plug 31 to deform it; the elastic sealing plug 31 exerts a reverse force on the second long straight consumable C2, thereby tightly wrapping the second long straight consumable C2; ​​at the same time, the outer conical surface 313 of the elastic sealing plug 31 fits in the conical hole 231 of the valve cap 2.

[0060] When the first long straight consumable C1 (such as a catheter) connected to the connecting end 111 of the valve body 1 enters the blood vessel, the injection path 12 (such as a male Luer connector) can be connected to the liquid (such as heparin and saline). At this time, the liquid pressure in the multi-way valve V2 is slightly greater than the elastic force of the elastic member 4, and the elastic sealing plug 31 is squeezed toward the first end 21 of the valve cap 2 under the action of the liquid pressure, so that the elastic sealing plug 31 is deformed and fits tightly to the conical hole 231 and the surface of the second long straight consumable C2, thereby playing a sealing role. At this time, the friction force between the center hole 314 of the elastic sealing plug 31 and the second long straight consumable C2 under the liquid pressure is less than the delivery force of the second long straight consumable C2, so the multi-way valve V2 can both achieve sealing and allow the delivery of the second long straight consumable C2.

[0061] When a high-pressure injection pump is used to inject liquid (such as contrast agent) into the multi-way valve V2 via the injection path 12, the elastic sealing plug 31 is instantly subjected to an ultra-high pressure greater than the elastic force of the elastic member, causing the elastic sealing plug 31 to be squeezed toward the first end 21 of the valve cap 2 again, and the elastic sealing plug 31 is deformed again, thereby fitting more closely with the tapered hole 231 of the valve cap 2 and the surface of the second long straight consumable C2. At this time, the friction between the center hole 314 of the elastic sealing plug 31 under the pressure of the high-pressure injection pump and the second long straight consumable C2 is greater than the catheter delivery force, resulting in the second long straight consumable C2 being unable to move in the center hole 314, providing a higher sealing force and achieving a reliable sealing effect.

[0062] After the high-pressure injection is completed, the pressure applied by the high-pressure injection pump decreases, and the elastic sealing plug 31 is reset toward the second end 22 of the valve cap 2 under the elastic force of the elastic member 4, thereby reducing the extrusion force exerted on the elastic sealing plug 31 in the tapered hole 231 of the valve cap 2, and correspondingly reducing the clamping force of the center hole 314 of the elastic sealing plug 31 on the surface of the second long straight consumable C2, so that the second long straight consumable C2 can be freely delivered in the center hole 314.

[0063] Refer to the following Figures 8 to 10 The multi-way valve V3 according to the third embodiment of the present utility model is introduced.

[0064] Figure 8 is a schematic cross-sectional structural diagram of a multi-way valve V3; Fig. 9 for Figure 8 The multi-way valve V3 according to the third embodiment has a substantially same structure as the multi-way valve V2 according to the second embodiment, except that: Figure 8 and Fig. 9 As shown, the sealing member 3 ″ of the multi-way valve V3 includes an annular telescopic structure 33 in addition to the elastic sealing plug 31 and the elastic flange 32 . The telescopic structure 33 is connected between the bottom end 312 of the elastic sealing plug 31 and the elastic flange 32 .

[0065] The retractable structure 33 allows the elastic sealing plug 31 to undergo axial displacement under the action of liquid pressure, so that the clamping force of the elastic sealing plug 31 on the second long straight consumable C2 has a larger variation range, thereby allowing automatic switching between locking and unlocking the second long straight consumable C2.

[0066] Preferably, the telescopic structure 33 forms a sealed connection between the elastic sealing plug 31 and the elastic flange 32. In this way, even when the outer conical surface 313 of the elastic sealing plug 31 is disengaged from the inner wall of the conical hole 231 of the valve cap 2, the telescopic structure 33 can still ensure that the liquid in the multi-way valve V3 will not leak through the gap between the outer conical surface 313 and the conical hole 231.

[0067] Preferably, the retractable structure 33 is a folding structure. Fig.10 An example of a seal 3" having a retractable structure 33 configured as a folding structure is shown, wherein Figure (a) shows the extended state of the folding structure / retractable structure 33, and Figure (b) shows the retracted state of the folding structure / retractable structure 33. Here, "folding structure" refers to a structure that folds according to a predetermined folding position, such as a bellows. It should be understood that the retractable structure 33 may also have a structure other than a folding structure, such as a hose structure that can be retracted along its axial direction.

[0068] Preferably, the seal used for the multi-way valve according to the embodiment of the utility model is an integrally formed silicone member. For example, the elastic sealing plug 31, the elastic flange 32 and the retractable structure 33 of the seal 3" can all be formed of silicone and integrally formed. Such a seal has a better sealing effect than a split seal, and the silicone material can provide excellent material safety and the elastic properties required for the seal.

[0069] According to an embodiment of the utility model, a consumables box for a vascular interventional surgery robot is also provided. Fig.11 FIG. 5 is a schematic diagram of a consumables box 50 according to an embodiment of the present utility model. Fig.10 As shown, the consumable box 50 includes a shell 501 and a multi-way valve V according to an embodiment of the present utility model installed in the shell 501.

[0070] According to an embodiment of the utility model, a vascular interventional surgery robot is also provided. Fig.12 FIG. 5 is a schematic diagram of a vascular interventional surgery robot 5 according to an embodiment of the present utility model. Fig.12 As shown, the vascular interventional surgery robot 5 includes a robot body 51 and a control system 52; the robot body 51 includes a main body 511 and a drive module 512, the drive module 512 is installed on the main body 511 and can move relative to the main body 511; the control system 52 is connected to the drive module 512 for controlling the movement of the drive module 512. Fig.12 As shown, the vascular interventional surgery robot 5 according to the embodiment of the utility model further includes a consumable box 50 installed on the drive module 512, and the consumable box 50 is installed with a multi-way valve V according to the embodiment of the utility model (see Fig.11 ).

[0071] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A multi-way valve for vascular intervention surgery, characterized in that: The multi-way valve comprises: The valve body comprises a main path and an injection path which are interconnected, wherein the main path has a connection end for connecting a first long straight interventional consumable and at least one entry end for a second long straight interventional consumable to enter, and the injection path is used to inject liquid required for interventional surgery into the valve body, and the second long straight interventional consumable can be inserted into the first long straight interventional consumable; a valve cap having a first end and a second end and a through hole extending axially through the first end and the second end, wherein the second end is used to be connected to the entry end, and at least a portion of the through hole is formed as a tapered hole having a radial dimension that gradually increases in a direction pointing from the first end to the second end; and A sealing member comprising an elastic sealing plug, The elastic sealing plug has a top end, a bottom end, an outer conical surface formed between the top end and the bottom end, and a center hole extending through the top end and the bottom end. The sealing member is installed between the valve cap and the entry end, and the bottom end of the elastic sealing plug is close to the entry end, so that the elastic sealing plug fits in the conical hole, and the center hole is used for the second long straight interventional consumable to pass through and connect with it. When the liquid is injected into the valve body, the elastic sealing plug is extruded and deformed under the action of the liquid pressure, so that the outer conical surface and the hole wall of the center hole are respectively fitted with the inner wall of the conical hole and the outer surface of the second long straight interventional consumable to achieve sealing.

2. The multi-way valve according to claim 1, characterized in that: The generatrix of the outer conical surface of the elastic sealing plug is a straight line.

3. The multi-way valve according to claim 1, characterized in that: The elastic sealing plug is formed with at least one cavity recessed from the bottom end toward the top end.

4. The multi-way valve according to claim 3, characterized in that: The cavities are blind holes and there are multiple of them, and the multiple blind holes are arranged around the central hole.

5. The multi-way valve according to any one of claims 1 to 4, characterized in that: The seal also includes an annular elastic flange connected to the bottom end of the elastic sealing plug, the second end of the valve cap has a first mounting surface, the entry end of the valve body has a second mounting surface, and the elastic flange is clamped between the first mounting surface and the second mounting surface to form a sealing fit.

6. The multi-way valve according to claim 5, characterized in that: The sealing member further comprises an annular retractable structure connected between the bottom end of the elastic sealing plug and the elastic flange.

7. The multi-way valve according to claim 6, characterized in that: The retractable structure forms a sealed connection between the elastic sealing plug and the elastic flange; and / or The retractable structure is a foldable structure; and / or The sealing member is an integrally formed silicone member.

8. The multi-way valve according to claim 1, 6 or 7, characterized in that: The through hole is provided with a step surface at the first end, and the multi-way valve further comprises an elastic member arranged in the through hole, and two ends of the elastic member are respectively in contact with the step surface and the top end of the elastic sealing plug.

9. A consumables box for a vascular interventional surgery robot, characterized in that: The consumable box comprises a shell and a multi-way valve as claimed in any one of claims 1 to 8 installed in the shell.

10. A vascular interventional surgery robot, characterized in that: The vascular interventional surgery robot comprises: A robot body, comprising a main body and a driving module, wherein the driving module is mounted on the main body and can move relative to the main body; A consumable box, which is mounted on the driving module, wherein the multi-way valve according to any one of claims 1 to 8 is installed in the consumable box; A control system is connected to the driving module for controlling the movement of the driving module.

Images