Y valve for interventional therapy

Abstract

The embodiment of the utility model discloses a Y valve for interventional therapy, which comprises a main pipe provided with a lead-in port, a bypass port and a lead-out port, a side pipe with one end communicated with the bypass port and the other end inclined to the lead-in port, and a separation blade positioned in the side pipe and with one end elastically connected to the inner wall of the side pipe, the blocking piece is perpendicular to the axial direction of the side pipe in the initial state, and the other end of the blocking piece inclines towards the liquid flowing direction when the blocking piece is subjected to the liquid flowing effect. According to the Y valve for interventional therapy, the blocking piece is arranged in the side pipe, used for inputting liquid, of the Y valve, and the blocking piece is elastically connected with the inner wall of the side pipe, so that when the liquid in the side pipe flows, the blocking piece is influenced by the flowing force of the liquid and inclines towards the flowing direction of the liquid, and the effect of indicating the flowing direction of the liquid in the Y valve is achieved; and an operator can be helped to quickly judge the real-time flowing state of the liquid in the pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a Y-valve used for interventional treatment. Background Art

[0002] The Y-valve is a necessary instrument for interventional treatment. It is mainly used to assist in the introduction of contrast agents, guidewires or other medical devices during interventional surgery, as well as to control blood backflow and provide a fluid pathway into the interventional system when using a guide catheter or dilation catheter.

[0003] The defect of the existing Y-valve is that since the Y-valve does not have a reference object for observing the flow direction of the liquid, the flow direction of the liquid in the Y-valve tube is unclear, and it is difficult for operators to quickly and clearly determine the real-time flow status of the liquid in the tube. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a Y-valve for interventional treatment, so as to solve the problem that the existing Y-valve does not have a reference object for observing the flow direction of liquid, so the flow direction of liquid in the Y-valve tube is unclear, and it is difficult for operators to quickly and clearly judge the real-time flow state of the liquid in the tube.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides a Y-valve for interventional treatment, comprising: a main pipe having an inlet, a bypass port and a outlet, a side pipe with one end connected to the bypass port and the other end inclined toward the inlet, a baffle located in the side pipe and elastically connected to the inner wall of the side pipe at one end, the baffle being perpendicular to the axial direction of the side pipe in an initial state, and the other end of the baffle being inclined toward the direction of liquid flow when affected by liquid flow.

[0007] As a preferred technical solution of the utility model, the side tube is also provided with an observation scale line for indicating the degree of inclination of the baffle, and the observation scale line is arranged along the axial direction of the side tube.

[0008] As a preferred technical solution of the utility model, a sliding key is slidably provided on the outer side wall of the main pipe, a rubber ring is provided at the introduction port, an elastic rope is wrapped around the outer circumference of the rubber ring, the elastic rope is extended and connected to the sliding key, and an introduction hole connecting the introduction port and the inside of the main pipe is provided at the center of the rubber ring, and the sliding key is used to pull the elastic rope away from or close to the introduction port to control the closing, opening, and reduction or increase of the aperture of the introduction hole after opening.

[0009] As a preferred technical solution of the utility model, the introduction port is in the shape of a trumpet with one end being large and the other end being small, the small end of the introduction port is connected to the introduction hole, and the large end of the introduction port is connected to the outside.

[0010] As a preferred technical solution of the utility model, a boss is provided on the outer side wall of the main pipe along the axial direction of the main pipe, a sliding guide rail is provided on the boss along the axial direction of the main pipe, and the sliding key is slidably connected to the sliding guide rail.

[0011] As a preferred technical solution of the utility model, the guiding surface between the edge of the boss and the outer side wall of the main pipe is arc-shaped.

[0012] As a preferred technical solution of the utility model, an aperture indicating scale for indicating the change in the aperture size of the introduction hole is provided on the side of the sliding guide rail, and the aperture indicating scale is arranged along the axial direction of the main pipe.

[0013] As a preferred technical solution of the utility model, a support rod is provided in the acute angle area formed by the connection between the side tube and the main tube, one end of the support rod is connected to the main tube, and the other end is connected to the side tube, and the support rod is in an arc shape bent in the direction of the acute angle formed by the side tube and the main tube, and a plurality of anti-slip structures are provided on the support rod.

[0014] As a preferred technical solution of the utility model, the side pipe has a main channel connected to the bypass port, and at least one three-way pipe is provided on the main channel. The first pipeline and the second pipeline of the three-way pipe participate in forming the main channel, and the third passage of the three-way pipe is vertically forked from the main channel. The three-way pipe is provided with a three-way valve, and the three-way valve is used to control the conduction direction of the three-way pipe;

[0015] The first pipeline and the second pipeline coincide with the central axis of the main channel, and the three-way pipe is rotatably connected to the main channel with the central axis of the main channel as the rotation axis.

[0016] As a preferred technical solution of the utility model, the side tube has a main channel connected to the bypass port, the main channel is provided with at least one branch channel, a roll-shaped baffle is provided in the main channel, the outer surface of the roll-shaped baffle is attached to the inner wall of the main channel and is rotatably connected to the main channel, and at least one conducting hole is provided on the circumferential side of the roll-shaped baffle corresponding to the branch channel, and when the conducting hole corresponds to the branch channel, the main channel is connected to the branch channel;

[0017] Among them, one end of the roll-shaped baffle extends into the main channel, and the other end is close to the other end of the side tube. The other end of the side tube is rotatably connected to a rotating member, and the rotating member is connected to the other end of the roll-shaped baffle. The rotating member is used to drive the roll-shaped baffle to rotate to control whether the main channel and the branch channel are conductive.

[0018] Compared with the prior art, the Y-valve used for interventional treatment of the utility model has a baffle plate arranged in the side tube of the Y-valve used for inputting liquid. The baffle plate is elastically connected to the inner wall of the side tube. When the liquid in the side tube flows, the baffle plate is affected by the flow force of the liquid and tilts in the direction of the liquid flow, thereby indicating the flow direction of the liquid in the Y-valve, helping the operator to quickly judge the real-time flow status of the liquid in the tube.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a Y-valve used for interventional treatment according to the utility model;

[0022] Figure 2 This is a front view structural diagram of a Y-valve for interventional treatment according to the utility model;

[0023] Figure 3 This is a side view structural diagram of a Y-valve for interventional treatment according to the utility model;

[0024] Figure 4 It is a cross-sectional view of a Y-valve for interventional treatment in one embodiment of the utility model;

[0025] Figure 5 This is a cross-sectional view of another embodiment of a Y-valve for interventional treatment according to the utility model;

[0026] Description of the symbols in the figure:

[0027] 1. Main pipe; 11. Inlet; 12. Bypass port; 13. Outlet; 14. Sliding key; 15. Rubber ring; 16. Elastic rope; 17. Boss; 171. Sliding guide rail; 18. Support rod; 181. Anti-slip structure; 2. Side pipe; 21. Baffle; 22. Main channel; 23. Three-way pipe; 231. Three-way valve; 24. Branch channel; 25. Roll-shaped baffle; 251. Conducting hole; 26. Rotating part. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0035] See also Figures 1 to 5 The embodiment of the utility model provides a Y-valve for interventional treatment, comprising: a main tube 1 having an inlet 11, a bypass port 12 and an outlet 13, a side tube 2 having one end connected to the bypass port 12 and the other end inclined to the inlet 11, and the Y-valve of this embodiment forms a "y"-shaped structure by connecting the main tube 1 and the side tube 2. It should be explained that the main tube 1 is generally used for inserting a guide wire, which enters through the inlet 11 and exits through the outlet 13, and the side tube 2 is generally used for infusing liquid into the bypass port 12 of the main tube 1, and the liquid infused by the side tube 2 will flow to the outlet 13 through the bypass port 12.

[0036] Further, such as Figure 3 and Figure 4As shown, during the operation, the operation of liquid input to the side tube 2 usually requires manual operation and adjustment. In order to avoid the unclear flow direction of the liquid in the Y valve, which may lead to errors or inaccurate adjustment of the liquid input, the present embodiment also includes a baffle 21 located in the side tube 2 and elastically connected to the inner wall of the side tube 2 at one end. The baffle 21 is perpendicular to the axial direction of the side tube 2 in the initial state, and the other end of the baffle 21 will be inclined in the direction of the liquid flow when the liquid flows. The side tube 2 is made of transparent material, so the user can smoothly observe the inclination state of the baffle 21 therein, and judge the flow direction of the liquid in the Y valve by observing the inclination state of the baffle 21.

[0037] In this embodiment, since one end of the baffle 21 is elastically connected to the inner wall of the side tube 2 and is perpendicular to the axial direction of the side tube 2 in the initial state, when the liquid in the side tube 2 is stationary, the baffle 21 maintains the initial state and is perpendicular to the axial direction of the side tube 2, and the user can judge that the liquid in the Y valve is not flowing; when the liquid in the side tube 2 flows toward the bypass port 12, the baffle 21 is affected by the flow force of the liquid so that the other end is inclined toward the bypass port 12, and the user can judge that the liquid in the side tube 2 is flowing toward the bypass port 12. At the same time, the user can also The flow rate of the liquid in the side tube 2 is analyzed according to the inclination degree (inclination angle) of the baffle 21. The larger the inclination angle, the faster the liquid flow rate. When the liquid in the side tube 2 flows in the direction away from the bypass port 12, the baffle 21 is affected by the liquid flow force so that the other end is inclined in the direction away from the bypass port 12. The user can judge that the liquid in the side tube 2 is flowing in the direction away from the bypass port 12. At the same time, the user can also analyze the flow rate of the liquid in the side tube 2 according to the inclination degree (inclination angle) of the baffle 21. The larger the inclination angle, the faster the liquid flow rate.

[0038] Optionally, in this embodiment, the baffle 21 can be divided into a connecting portion and a liquid blocking portion, one end of the connecting portion is connected to the inner wall of the side tube 2, and the liquid blocking portion is connected to the other end of the connecting portion. The connecting portion is made of elastic material, so that when the blocking portion is acted upon by the flow force of the liquid, a force in the same direction as the flow direction of the liquid is generated and transmitted to the connecting portion. The connecting portion is elastically deformed by the force so that the blocking portion is tilted toward the direction of the liquid flow.

[0039] Furthermore, in order to make the inclination of the baffle 21 easier to observe, an observation scale line for indicating the inclination of the baffle 21 is provided at the position of the baffle 21 on the outer wall of the side tube 2 corresponding to the baffle 21, and the observation scale line is arranged along the axial direction of the side tube 2. When the baffle 21 is inclined, the user can more intuitively judge the speed of the liquid flow according to the relative position of the baffle 21 and the observation scale line. Optionally, in order to make the indication of the inclination of the baffle 21 more obvious to the observer, with the baffle 21 as the middle position, the observation scale line on the left side of the baffle 21 and the observation scale line on the right side of the baffle 21 are different in color, for example, the observation scale line on the left side of the baffle 21 is set to green, and the observation scale line on the right side of the baffle 21 is set to red. When the liquid flows to the left, the scale line is green, and when the liquid flows to the right, it means that there is blood backflow, and the scale line is marked in red to achieve a warning effect on the operator. Preferably, there can be two baffles 21, which are arranged opposite to each other in the side tube 2, and the observation scale line is correspondingly arranged between the two baffles 21, so that when the baffle 21 is tilted by the flow force of the liquid, the baffle 21 and the observation scale line will visually appear as an arrow shape, which more intuitively prompts the user of the liquid flow direction, and the user can also know the degree of inclination of the baffle 21 through the angle between the baffle 21 and the observation scale line, and more intuitively know the flow rate of the liquid.

[0040] The outlet 13 passes through the main pipe 1 and enters the human body. The airtightness of the introduction port 11 is extremely important. The Y valve in the prior art has the problem that the introduction port 13 is inconvenient to adjust. The mainstream is a rotary adjustment structure or a press-type adjustment structure provided at the introduction port 13, which is inconvenient to operate and has the risk of blood spillage when pressed. In this embodiment, a sliding key 14 is slidably provided on the outer wall of the main pipe 1, a rubber ring 15 is provided at the introduction port 11, and an elastic rope 16 is provided around the outer periphery of the rubber ring 15. The elastic rope 16 extends and is connected to the sliding key 14. The center of the rubber ring 15 is provided with an introduction hole connecting the introduction port 11 and the inside of the main pipe 1. The sliding key 14 is used to pull the elastic rope 16 away from or close to the introduction port 11 to control the closing and opening of the introduction hole and the reduction or increase of the aperture after opening. It can be understood that the rubber ring 15 is made of rubber material, which is soft and elastic, and can effectively fill or close the introduction port 11, and has a good sealing effect. At the same time, the elastic rope 16 is connected and wrapped around the outer periphery of the rubber ring 15. The user can control the elastic rope 16 through the slide key 14, so that the introduction hole at the center of the rubber ring 15 is opened or rebounded and contracted through the elastic rope 16, so as to further control the reduction or increase of the aperture of the introduction hole. When using the Y-valve of this embodiment, the user can hold the Y-valve with one hand and use the same hand to operate the slide key 14 to control the aperture size of the introduction hole to determine whether the introduction port 11 is conductive, thereby improving the convenience of operation.

[0041] Optionally, in order to facilitate the passage of the guide wire, the introduction port 11 is made into a trumpet shape with one end larger than the other end. The small end of the introduction port 11 is connected to the introduction hole, and the large end of the introduction port 11 is connected to the outside world. Therefore, when the guide wire enters the introduction port 11, it can be guided by the inner wall of the introduction port 11 to extend toward the introduction hole, making the passage of the guide wire more convenient.

[0042] Specifically, a boss 17 is provided on the outer wall of the main tube 1 along the axial direction of the main tube 1, and a sliding guide rail 171 is provided on the boss 17 along the axial direction of the main tube 1, and the slide key 14 is slidably connected to the sliding guide rail 171. Optionally, the sliding guide rail 171 is a metal or plastic track with a groove, and the slide key 14 is a small part that can slide in the groove. The slide key 14 is provided with a protrusion. When no pressure is applied to press the slide key 14, the protrusion will contact the wall surface of the groove, so that the slide key 14 cannot slide, and when sufficient pressure is applied to press the slide key 14, the protrusion will be separated from the wall surface of the groove, so that the slide key 14 can slide on the sliding guide rail 171, so that the user can press the slide key 14 and slide the slide key 14 to adjust the size of the introduction hole when it is necessary to adjust the size of the introduction hole, and release the slide key 14 after the adjustment to fix the slide key 14 to maintain the size of the introduction hole, so that the adjustment is more convenient. It should be explained that the arrangement of the push-slide sliding key 14 and the sliding guide rail 171 belongs to the prior art, and this embodiment is only an example for explanation, and other implementation methods may be possible in other embodiments.

[0043] Furthermore, the guiding surface between the edge of the boss 17 and the outer side wall of the main pipe 1 is arc-shaped, so that the user has a better grip and is more convenient for the user to hold.

[0044] Furthermore, an aperture indicating scale for indicating the change in the size of the introduction hole is provided on the side of the sliding guide rail 171, and the aperture indicating scale is arranged along the axial direction of the main pipe 1. Optionally, when the sliding key 14 moves toward the direction close to the introduction hole, the introduction hole becomes larger, and when the sliding key 14 moves away from the introduction hole, the introduction hole shrinks, and the aperture indicating scale is arranged accordingly. Optionally, the aperture indicating scale can be a digital scale.

[0045] Further, such as Figure 1 , Figure 3 and Figure 4 As shown, a support rod 18 is provided in the acute angle area formed by the connection between the side tube 2 and the main tube 1. One end of the support rod 18 is connected to the main tube 1, and the other end is connected to the side tube 2. The support rod 18 is in an arc shape that bends in the direction of the acute angle formed by the side tube 2 and the main tube 1. The support rod 18 is provided with a plurality of anti-slip structures 181. The support rod 18 is used to connect and support the main tube 1 and the side tube 2, and at the same time makes it more convenient for the user to hold. Optionally, the anti-slip structure 181 on the support rod 18 is a convex structure or a concave structure. A plurality of anti-slip structures 181 are connected to form a continuous sawtooth on the support rod 18, which can effectively improve the comfortable grip while playing an anti-slip role.

[0046] In one embodiment, if Figure 1 , Figure 2 and Figure 4 As shown, the side pipe 2 has a main channel 22 connected to the bypass port 12, and at least one three-way pipe 23 is arranged on the main channel 22. The first pipeline and the second pipeline of the three-way pipe 23 participate in forming the main channel 22, and the third channel of the three-way pipe 23 is forked from the main channel 22. The three-way valve 231 is arranged on the three-way pipe 23, and the three-way valve 231 is used to control the conduction direction of the three-way pipe 23; wherein, the first pipeline and the second pipeline coincide with the central axis of the main channel 22, and the three-way pipe 23 is rotatably connected to the main channel 22 with the central axis of the main channel 22 as the rotation axis, so that the user can rotate the three-way pipe 23 according to his own usage habits to adjust the positions of the three-way valve 231 and the third channel to meet the personalized needs of different users.

[0047] In another embodiment, if Figure 5As shown, the side tube 2 has a main channel 22 connected to the bypass port 12, at least one branch channel 24 is provided on the main channel 22, a roll-shaped baffle 25 is provided in the main channel 22, the outer surface of the roll-shaped baffle 25 is attached to the inner wall of the main channel 22 and is rotatably connected to the main channel 22, at least one conducting hole 251 is provided on the circumferential side of the roll-shaped baffle 25 corresponding to the branch channel 24, when the conducting hole 251 corresponds to the branch channel 24, the main channel 22 is connected to the branch channel 24; wherein, one end of the roll-shaped baffle 25 extends into the main channel 22, and the other end is close to the other end of the side tube 2, the other end of the side tube 2 is rotatably connected to a rotating member 26, the rotating member 26 is connected to the other end of the roll-shaped baffle 25, and the rotating member 26 is used to drive the roll-shaped baffle 25 to rotate to control whether the main channel 22 and the branch channel 24 are connected. Optionally, at least one elastic protrusion is further provided on the circumferential side of the scroll baffle 25 corresponding to the branch channel 24. When the scroll baffle 25 is rotated so that the elastic protrusion is located in the branch channel 24, the elastic protrusion will block the branch channel 24 more thoroughly, thereby enhancing the airtightness of the Y valve as a whole when liquid is not required. It should be explained that the number of the branch channel 24 is at least one. In a certain embodiment, the number of the branch channels 24 can be three. The guide holes 251 on the scroll baffle 25 are correspondingly provided with three. The guide holes 251 correspond to the branch channels 24 one by one. Further, when the number of the branch channels 24 is greater than 1, each branch channel 24 is located on the same straight line, and the straight line is parallel to the central axis of the main channel 22. It is understandable that different operations during the interventional surgery have different requirements for the conduction state of each sub-channel 24. The operations that may need to be performed during an interventional surgery include extracting heparin saline, venting the pressure tube, clearing the pressure, extracting contrast agent, etc. Different execution operations have different conduction requirements for each sub-channel 24. When the roll-shaped baffle 25 is set in this embodiment, different arrangements of conduction holes 251 can be set according to different execution operations to avoid the tedious operation of the Y-valve requiring the user to debug multiple three-way valves 231 one by one to control the conduction state of different three-way tubes 23. It is only necessary to complete the rotation of the roll-shaped baffle 25 to control which execution operation the entire Y-valve is suitable for.Taking the case where the number of the sub-channels 24 is 3 as an example, the sub-channels 24 are divided into a first sub-channel, a second sub-channel, and a third sub-channel. At positions corresponding to the first sub-channel, the second sub-channel, and the third sub-channel in a direction parallel to the central axis of the main channel 22 on the roll-shaped baffle 25, a through hole 251, an elastic protrusion, and an elastic protrusion are respectively provided; or, at positions corresponding to the first sub-channel, the second sub-channel, and the third sub-channel in a direction parallel to the central axis of the main channel 22 on the roll-shaped baffle 25, an elastic protrusion, a through hole 251, and an elastic protrusion are respectively provided; or, at positions corresponding to the first sub-channel, the second sub-channel, and the third sub-channel in a direction parallel to the central axis of the main channel 22 on the roll-shaped baffle 25, an elastic protrusion, an elastic protrusion, and a through hole 251 are respectively provided; or, at positions corresponding to the first sub-channel, the second sub-channel, and the third sub-channel in a direction parallel to the central axis of the main channel 22 on the roll-shaped baffle 25, an elastic protrusion, an elastic protrusion, and an elastic protrusion are respectively provided. It can be understood that the above are only partial examples. In other embodiments, there may be other numbers of sub-channels 24, and other conductive holes 251 and / or elastic protrusions may be arranged in a certain position on the roll-shaped baffle 25 in a direction parallel to the central axis of the main channel 22 corresponding to the first sub-channel, the second sub-channel, and the third sub-channel.

[0048] Compared with the prior art, the Y-valve used for interventional treatment of the utility model has a baffle plate arranged in the side tube of the Y-valve used for inputting liquid. The baffle plate is elastically connected to the inner wall of the side tube. When the liquid in the side tube flows, the baffle plate is affected by the flow force of the liquid and tilts in the direction of the liquid flow, thereby indicating the flow direction of the liquid in the Y-valve, helping the operator to quickly judge the real-time flow status of the liquid in the tube.

[0049] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A Y-valve for interventional treatment, characterized in that: include: A main pipe having an inlet, a bypass port and an outlet, a side pipe with one end connected to the bypass port and the other end inclined toward the inlet, a baffle located in the side pipe and elastically connected to the inner wall of the side pipe at one end, wherein the baffle is perpendicular to the axial direction of the side pipe in an initial state, and the other end of the baffle will be inclined toward the direction of liquid flow when affected by liquid flow.

2. A Y-valve for interventional treatment according to claim 1, characterized in that: The side tube is also provided with an observation scale line for indicating the inclination degree of the baffle, and the observation scale line is arranged along the axial direction of the side tube.

3. A Y-valve for interventional treatment according to claim 1, characterized in that: A sliding key is slidably provided on the outer wall of the main pipe, a rubber ring is provided at the introduction port, an elastic rope is wound around the outer circumference of the rubber ring, the elastic rope is extended and connected to the sliding key, and an introduction hole connecting the introduction port and the inside of the main pipe is provided at the center of the rubber ring, and the sliding key is used to pull the elastic rope away from or close to the introduction port to control the closing, opening, and reduction or increase of the aperture of the introduction hole after opening.

4. A Y-valve for interventional treatment according to claim 3, characterized in that: The introduction port is in the shape of a trumpet with one end being large and the other end being small. The small end of the introduction port is connected to the introduction hole, and the large end of the introduction port is connected to the outside.

5. The Y-valve for interventional treatment according to claim 3, characterized in that: A boss is provided on the outer side wall of the main pipe along the axial direction of the main pipe, a sliding guide rail is provided on the boss along the axial direction of the main pipe, and the sliding key is slidably connected to the sliding guide rail.

6. A Y-valve for interventional treatment according to claim 5, characterized in that: The guiding surface between the edge of the boss and the outer side wall of the main pipe is arc-shaped.

7. A Y-valve for interventional treatment according to claim 5, characterized in that: Aperture indicating scales for indicating changes in the aperture size of the introduction hole are arranged on the side of the sliding guide rail, and the aperture indicating scales are arranged along the axial direction of the main pipe.

8. The Y-valve for interventional treatment according to claim 1, characterized in that: A support rod is provided in the acute angle area formed by the connection between the side tube and the main tube, one end of the support rod is connected to the main tube, and the other end is connected to the side tube, and the support rod is in an arc shape bent in the direction of the acute angle formed by the side tube and the main tube, and a plurality of anti-slip structures are provided on the support rod.

9. The Y-valve for interventional treatment according to claim 1, characterized in that: The side pipe has a main channel connected to the bypass port, and at least one three-way pipe is arranged on the main channel. The first pipeline and the second pipeline of the three-way pipe participate in forming the main channel, and the third passage of the three-way pipe is vertically forked from the main channel. The three-way pipe is provided with a three-way valve, and the three-way valve is used to control the conduction direction of the three-way pipe; The first pipeline and the second pipeline coincide with the central axis of the main channel, and the three-way pipe is rotatably connected to the main channel with the central axis of the main channel as the rotation axis.

10. The Y-valve for interventional treatment according to claim 1, characterized in that: The side pipe has a main channel connected to the bypass port, the main channel is provided with at least one branch channel, a roll-shaped baffle is provided in the main channel, the outer surface of the roll-shaped baffle is attached to the inner wall of the main channel and is rotatably connected to the main channel, and at least one conducting hole is provided on the circumferential side of the roll-shaped baffle corresponding to the branch channel, and when the conducting hole corresponds to the branch channel, the main channel is connected to the branch channel; Among them, one end of the roll-shaped baffle extends into the main channel, and the other end is close to the other end of the side tube. The other end of the side tube is rotatably connected to a rotating member, and the rotating member is connected to the other end of the roll-shaped baffle. The rotating member is used to drive the roll-shaped baffle to rotate to control whether the main channel and the branch channel are conductive.

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