Medical three-way valve assembly for interventional therapy

Abstract

The utility model provides a medical three-way valve assembly for interventional therapy, and belongs to the technical field of medical instruments. And the exhaust assembly comprises an exhaust hose and a flow stopping clamp, the exhaust hose is connected to the insertion end of the valve body and communicates with the inner cavity of the valve body, and the flow stopping clamp is arranged on the exhaust hose and used for controlling the on-off state of the exhaust hose. The exhaust assembly is arranged on the valve body and comprises the exhaust hose and the flow stopping clamp, the exhaust hose is connected to the insertion end of the valve body, and the flow stopping clamp is arranged on the exhaust hose and used for controlling the on-off state of the exhaust hose. When the tail end of the valve body forgets to exhaust, the exhaust hose can be opened by opening the flow stopping clip, so that the inner cavity of the valve body is communicated with the outside, gas in the inner cavity of the valve body can be exhausted through the exhaust hose, and after the gas in the valve body is exhausted, the exhaust hose is closed through the flow stopping clip to isolate the valve body from being communicated with the outside. Medical hidden dangers are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a medical three-way valve assembly for interventional treatment. Background Art

[0002] Medical three-way valves (such as Y valves and T valves) are commonly used auxiliary devices in interventional treatments, providing a liquid passage into the interventional system. It is mainly used in interventional surgery to assist in the introduction of contrast agents or other liquids such as saline or heparin, and to be used in conjunction with guidewires or catheters to prevent blood backflow. Taking the Y valve as an example, the Y valve structure of the related technology generally includes a main body and a high-pressure connector. The high-pressure connector is used to connect external equipment to inject contrast agents or other liquids such as saline or heparin; the main body is generally connected to the high-pressure connector, and the inner cavity is connected to the inner cavity of the high-pressure connector. A sealing plug rotating head is provided at the tail end, and the inner cavity of the main body is connected to the inner cavity of the rotating head. The tail end of the main body rotates the sealing plug rotating head clockwise or counterclockwise to the appropriate position, which can not only allow auxiliary instruments such as guidewires and catheters to enter smoothly along the passage, but also achieve the purpose of preventing blood backflow.

[0003] However, in the related art, the extrusion form of the Y-valve seal is relatively simple and the function is relatively simple, which makes the use of the Y-valve not flexible enough. At the same time, the opening or closing of the sealing plug requires manual operation by the doctor and the doctor needs to manually adjust the appropriate position repeatedly to allow the catheter guide wire to pass smoothly and prevent the blood from flowing back. However, the operation is cumbersome and prone to errors. For example, forgetting to exhaust the air at the tail end or not completely exhausting the air will cause gas to accumulate at the tail end during use, which poses a great safety hazard to medical work. Utility Model Content

[0004] The purpose of the present application is to provide a medical three-way valve assembly for interventional treatment, aiming to solve the defect in the related art that one end of the rotating head of the three-way valve sealing plug is not convenient for exhausting gas, and the gas in the three-way valve may not be completely exhausted.

[0005] Additional aspects and advantages of the present application 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 present application.

[0006] According to a first aspect of the present application, a medical three-way valve assembly for interventional treatment is provided, comprising:

[0007] A valve body, capable of allowing interventional consumables to pass through;

[0008] The exhaust assembly comprises an exhaust hose and a stop clamp, wherein the exhaust hose is connected to the insertion end of the valve body and communicates with the inner cavity of the valve body, and the stop clamp is arranged on the exhaust hose to control the on-off state of the exhaust hose.

[0009] In an exemplary embodiment of the present application, the flow stop clamp includes a first clamp and a second clamp that are hinged to each other, and the first clamp and the second clamp are configured to clamp the exhaust hose to close the exhaust hose and release the exhaust hose to open the exhaust hose.

[0010] In an exemplary embodiment of the present application, the first ends of the first clamp and the second clamp are hinged, and the exhaust hose is passed through the hinged end of the flow-stop clamp;

[0011] The first clamping piece is provided with a first protrusion, and the second clamping piece is provided with a second protrusion;

[0012] When the second end of the second clip moves close to the second end of the first clip, the second protrusion and the first protrusion squeeze the exhaust hose to close the exhaust hose;

[0013] When the second end of the second clip moves away from the second end of the first clip, the second protrusion moves away from the first protrusion to release the exhaust hose, so that the exhaust hose is opened;

[0014] The second end is an end far away from the first end.

[0015] In an exemplary embodiment of the present application, the first protrusions and the second protrusions are staggered in a direction from the first end to the second end.

[0016] In an exemplary embodiment of the present application, a slot is provided at the second end of the first clip, and a tooth matching the slot is provided at the second end of the second clip, wherein the tooth is suitable for being engaged in the slot.

[0017] In an exemplary embodiment of the present application, the second end of the first clip is bent toward the second clip to form a bent portion, the slot is arranged on the bent portion, the side of the latch tooth facing the first clip is provided with an inclined portion for cooperating in sliding into the slot, and the side away from the first clip is provided with a blocking portion for preventing the latch tooth from sliding out of the slot.

[0018] In an exemplary embodiment of the present application, there are multiple card slots, and the multiple card slots are arranged in sequence on the bending portion of the first clip along the sliding direction of the card teeth.

[0019] In an exemplary embodiment of the present application, the exhaust assembly further includes a limiter, the limiter is mounted on the exhaust hose, and the stop clamp is located between the valve body and the limiter.

[0020] In an exemplary embodiment of the present application, the limiting member is a limiting ring.

[0021] In an exemplary embodiment of the present application, it also includes an exhaust transition pipe, one end of which is connected to the inner cavity of the valve body, and the other end is connected to the exhaust hose, and the exhaust hose is connected to the inner cavity of the valve body through the exhaust transition pipe.

[0022] This application has the following beneficial effects:

[0023] The medical three-way valve assembly for interventional treatment provided by the present application has an exhaust assembly arranged on the valve body, and the exhaust assembly includes an exhaust hose and a stop clamp, the exhaust hose is connected to the insertion end of the valve body, and the stop clamp is arranged on the exhaust hose and is used to control the on-off state of the exhaust hose. When the tail end of the valve body is forgotten to be exhausted, the stop clamp can be opened to open the exhaust hose, so that the inner cavity of the valve body is connected to the outside world, so that the gas in the inner cavity of the valve body can be discharged through the exhaust hose. After the gas in the valve body is discharged, the exhaust hose is closed by the stop clamp to isolate the valve body from the outside world. The structure is simple and easy to operate, avoiding medical risks.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic structural diagram of a medical three-way valve assembly for interventional treatment in an embodiment of the present application is shown;

[0027] Figure 2 A cross-sectional view of a medical three-way valve assembly for interventional treatment in an embodiment of the present application is shown;

[0028] Figure 3 A schematic structural diagram showing an exhaust assembly of a medical three-way valve assembly for interventional treatment in an embodiment of the present application in an open state;

[0029] Figure 4 A schematic structural diagram of an exhaust assembly of a medical three-way valve assembly for interventional treatment in an embodiment of the present application is shown in a closed state.

[0030] Description of reference numerals:

[0031] 1. Base rotating body; 2. Sealing ring; 3. Valve body; 4. Rubber pad; 5. Top cap; 6. Exhaust assembly; 7. Exhaust hose; 8. Exhaust transition pipe; 9. Limiting piece; 10. Stop clamp; 101. Second clamp; 102. First clamp; 11. Second protrusion; 12. First protrusion; 13. Clamping tooth; 14. Bending part; 15. Clamping groove. DETAILED DESCRIPTION

[0032] 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 application 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 descriptions will be omitted. In addition, the drawings are only schematic illustrations of the present application and are not necessarily drawn to scale.

[0033] 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.

[0034] 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.

[0035] Example

[0036] like Figure 1 and Figure 2 As shown, the medical three-way valve assembly for interventional treatment provided in the embodiment of the present application includes a valve body 3 and an exhaust assembly 6, the valve body 3 allows the interventional consumables to pass through, and the exhaust assembly 6 includes an exhaust hose 7 and a stop clamp 10, as shown in FIG. Figure 1As shown, the right end of the valve body 3 is an insertion end for insertion of interventional consumables, and the exhaust hose 7 is connected to the side of the insertion end of the valve body 3 and the exhaust hose 7 is connected to the inner cavity of the valve body 3. In order to ensure that the gas in the valve body 3 does not leak from the connection between the exhaust hose 7 and the valve body 3, the connection between the exhaust hose 7 and the valve body 3 is set to be sealed. The stopper clamp 10 is set on the exhaust hose 7 and is used to control the on-off state of the exhaust hose 7. When the exhaust hose 7 maintains the passage state, the inner cavity of the valve body 3 can be connected to the outside world to discharge the air in the valve body 3; when the exhaust hose 7 maintains the disconnected state, the communication between the valve body 3 and the outside world can be isolated. By adjusting the on-off state of the exhaust hose 7 by the stopper clamp 10, the valve body 3 can be exhausted or sealed without adjusting the sealing plug, which has a simple structure and is easy to operate.

[0037] In some embodiments, the flow stop clamp 10 includes a first clamp 102 and a second clamp 101 connected to each other, and the first clamp 102 and the second clamp 101 are configured to clamp the exhaust hose 7 to close the exhaust hose 7 and release the exhaust hose 7 to open the exhaust hose 7. As a further specific embodiment, the first clamp 102 and the second clamp 101 can be configured to be hinged to each other, and the hinged relationship between the two can be used to open or close the two. In order to further facilitate use, an elastic member can be provided between the first clamp 102 and the second clamp 101, and the elastic member can be configured to apply an elastic force to the two to keep them apart, for example, the elastic member can be a compression spring, and when the two need to be opened, the compression spring will release elastic potential energy so that the two can be opened quickly; the elastic member can also be configured to apply an elastic force to the two to bring them closer, for example, the elastic member can be a tension spring, and when the two need to be brought closer, the tension spring will release elastic potential energy so that the two can be brought closer quickly; the elastic member can also be a torsion spring provided at the hinge of the first clamp 102 and the second clamp 101. The embodiments of the present application do not limit the elastic member, as long as the elastic force can be applied to assist the first and second clips to open or close. Among them, the first clip 102 mentioned in the present embodiment is hinged to the first end of the second clip 101, and the second end (the end away from the hinge) can be close to or away from each other. The hinge expresses that the first clip 102 and the second clip 101 can rotate around one end, and the relative rotation can be formed by the material of the stop clamp 10 itself. For example, a columnar protrusion is provided on the first clip 102, and a corresponding groove is provided on the second clip 101. The relative rotation is achieved by docking the protrusion and the groove, or by setting a rotating shaft and other methods. The embodiments of the present application do not limit this.

[0038] In addition, it should be noted that the embodiment of the present application does not limit the first clip 102 and the second clip 101 to be independently set and then hinged. In some other embodiments, the first clip 102 and the second clip 101 can be set as an integral part and realize hinge through their own bending deformation, that is, a part of the flow stop clamp 10 is used as the first clip 102, and the other part is used as the second clip 101. The transition part between the two parts is set to a thinner curved structure to achieve hinge. On this basis, the first clip 102 and the second clip 101 are set to have appropriate elasticity. Similar to the above-mentioned elastic member, the elasticity can also be set to facilitate the rapid opening or rapid closing of the flow stop clamp 10. Specifically, when the flow stop clamp 10 needs to be set to be able to open quickly, in the natural state (that is, when not subjected to external force), the second end of the first clip 102 and the second end of the second clip 101 are away from each other. When the exhaust hose 7 needs to be closed, the second end of the first clip 102 and the second end of the second clip 101 are moved closer to each other by applying an external force to overcome the elastic potential energy to clamp the exhaust hose 7. When the exhaust hose 7 needs to be opened, the elastic potential energy is released to quickly separate the second end of the first clip 102 and the second end of the second clip 101; when the stop clamp 10 needs to be set to be able to be quickly closed, the second end of the first clip 102 and the second end of the second clip 101 are close to each other in the natural state. When the exhaust hose 7 needs to be opened, the second end of the first clip 102 and the second end of the second clip 101 are moved away from each other by applying an external force to overcome the elastic potential energy to open the exhaust hose 7. When the exhaust hose 7 needs to be closed, the elastic potential energy is released to quickly move the second end of the first clip 102 and the second end of the second clip 101 closer to each other to clamp the exhaust hose 7. The material of the first clip 102 and the second clip 101 is not limited, and can be plastic or metal, as long as both can be elastic.

[0039] Of course, there may be no elastic force between the mutually hinged first clip 102 and the second clip 101. When in use, the distance between the second end of the second clip 101 and the second end of the first clip 102 is adjusted by applying external force, thereby achieving the clamping and loosening of the exhaust hose 7 by the first clip 102 and the second clip 101, so that the exhaust hose 7 is switched between disconnection and passage.

[0040] In addition to the hinged connection, in some other embodiments, the first clip 102 and the second clip 101 can also be configured to be slidingly connected. For example, the second clip 101 is configured to be able to slide relative to the first clip 102. When in use, the sliding of the second clip 101 can achieve the closeness or distance between the two, thereby achieving the opening or closing of the exhaust hose 7.

[0041] In the embodiment of the present application, the first ends of the first clip 102 and the second clip 101 are hinged, and the hinged ends are provided with a perforation, and the exhaust hose 7 is passed through the perforation and is arranged at the hinged end of the stopper 10. In order to conveniently control the closing or opening of the exhaust hose 7, the first clip 102 is provided with a first protrusion 12, and the second clip 101 is provided with a second protrusion 11. When the second end of the second clip 101 moves close to the second end of the first clip 102, the second protrusion 11 and the first protrusion 12 mutually squeeze the exhaust hose 7 to close the exhaust hose 7. When the second end of the second clip 101 moves away from the second end of the first clip 102, the second protrusion 11 moves away from the first protrusion 12 to release the exhaust hose 7 to open the exhaust hose 7. By controlling the second end of the second clip 101 to approach or move away from the second end of the first clip 102, the second protrusion 11 approaches the first protrusion 12 to squeeze the exhaust hose 7 or the second protrusion 11 moves away from the first protrusion 12 to release the exhaust hose 7. It should be noted that, in the embodiment of the present application, although the exhaust hose 7 passes through the perforation of the hinged end of the stop clamp 10, the perforation does not exert force on the exhaust hose 7, that is, the hinged end of the stop clamp 10 has no effect on the exhaust of the exhaust hose 7. Specifically, the aperture of the perforation is set to be larger than the outer diameter of the exhaust hose 7 to further avoid the hinged end exerting force on the exhaust hose 7 due to accidental movement of the exhaust hose 7, thereby affecting the exhaust effect. The aperture of the perforation can be set larger to leave room for the exhaust hose 7 to move.

[0042] Further, the first protrusion 12 and the second protrusion 11 are staggered in the direction from the first end to the second end, and the first protrusion 12 is arranged at the middle position of the first clamp 102, and the second protrusion 11 is arranged at the middle position of the second clamp 101. Preferably, when the first protrusion 12 and the second protrusion 11 are close to each other, the intersecting surfaces of the first protrusion 12 and the second protrusion 11 are basically in contact, so that when the exhaust hose 7 needs to be clamped, the second end of the first clamp 102 and the second end of the second clamp 101 are close to each other, so that the first protrusion 12 and the second protrusion 11 can press against the front and rear parts of both sides of the exhaust hose 7 to bend and deform the exhaust hose 7, until the intersecting surfaces of the first protrusion 12 and the second protrusion 11 are almost in contact, and the exhaust hose 7 is squeezed between the two intersecting surfaces to achieve closure, so as to take into account both the clamping effect during squeezing and the smoothness during release. The present application does not limit the spacing between the intersecting surfaces of the first protrusion 12 and the second protrusion 11, and can be set according to the actual clamping effect of the exhaust hose.

[0043] In order to prevent the first protrusion 12 and the second protrusion 11 from causing damage to the exhaust hose 7 when squeezing the exhaust hose 7, as shown in FIG. Figure 2As shown, the cross-section of the first protrusion 12 and the second protrusion 11 is preferably set to an arc shape. Of course, this is not restrictive. According to actual needs, the cross-section of the first protrusion 12 and the second protrusion 11 can also be a trapezoid, a triangle, etc., as long as the exhaust hose 7 can be clamped during use.

[0044] It should be noted that the embodiment of the present application does not limit the first protrusion 12 and the second protrusion 11 to be staggered. In some embodiments, the first protrusion 12 and the second protrusion 11 can also be arranged correspondingly. When the exhaust hose 7 needs to be clamped, the first protrusion 12 and the second protrusion 11 approach each other from both sides of the exhaust hose 7 and abut against both sides of the same axial position of the exhaust hose 7, thereby clamping the exhaust hose 7. Compared with the staggered arrangement, the first protrusion 12 and the second protrusion 11 are arranged correspondingly, and the exhaust hose 7 will not be bent or deformed when in use.

[0045] In order to facilitate the user to get rid of the opponent's restraint when locking the stop clamp 10, a slot 15 is provided at the second end of the first clamp 102, and a second end of the second clamp 101 has a latching tooth 13 matched with the slot 15. When the exhaust hose 7 is clamped, the second end of the second clamp 101 moves toward the second end of the first clamp 102, so that the latching tooth 13 is stuck in the slot 15. The first clamp 102 and the second clamp 101 are in a state of squeezing the exhaust hose 7, so that the passage of the exhaust hose 7 is disconnected, the valve body 3 is isolated from the outside, and the latching tooth 13 and the slot 15 are connected. The design can enable the first clamp 102 and the second clamp 101 to maintain the clamping of the exhaust hose 7, without the user having to use his hands to keep the relative positions of the first clamp 102 and the second clamp 101; when exhaust is required, the latch tooth 13 is moved out of the latch groove 15 so that the second clamp 101 can be away from the first clamp 102, and the exhaust hose 7 is opened, so that the gas in the inner cavity of the valve body 3 can be discharged through the exhaust hose 7. After the gas is discharged, the latch tooth 13 is clamped in the latch groove 15 to clamp the exhaust hose 7, so that the exhaust hose 7 remains in a normally closed state.

[0046] Further, see Figure 2In the orientation, the first end of the first clip 102 is the lower end, the second end of the first clip 102 is the upper end, the first end of the second clip 101 is the lower end, and the second end of the second clip 101 is the lower end. In this embodiment, the first end of the first clip 102 and the first end of the second clip 101 are integrally formed, and the first end of the first clip 102 and the first end of the second clip 101 have a certain elastic force at the hinge position. In the natural state, the second end of the second clip 101 is away from the second end of the first clip 102. When the exhaust hose 7 needs to be closed, the second end of the second clip 101 overcomes the elastic force and moves toward the second end of the first clip 102, and the latch 13 is stuck in the latch groove 15 to complete the clamping of the exhaust hose 7. Among them, the elastic force at the hinge position between the first end of the first clip 102 and the first end of the second clip 101 can be the elastic force of the first end of the first clip 102 and the first end of the second clip 101 after molding, or it can be the elastic force provided by the spring set between the first clip 102 and the second clip 101.

[0047] In some embodiments, the first end of the first clip 102 and the first end of the second clip 101 can also be hinged by a rotating shaft, and there is no elastic force at the hinge position, and the opening and closing of the flow stop clamp 10 is completed manually by the operator.

[0048] In some embodiments, Figure 1 and Figure 2 As shown, the second end of the first clip 102 is bent and extended toward the second clip 101 to form a bent portion 14, and the slot 15 is provided on the bent portion 14. Specifically, the side of the latch tooth 13 facing the first clip 102 is provided with an inclined portion for cooperating to slide into the slot 15, and the side of the latch tooth 13 facing away from the first clip 102 is provided with a blocking portion for preventing the latch tooth 13 from sliding out of the slot 15. Specifically, the second end of the latch tooth 13 has a beveled surface on one side, and the portion with the beveled surface at the end forms the latch tooth 13, the beveled surface faces the first clip 102, and the side facing away from the first clip 102 is a vertical surface. The side with the chamfered surface forms an inclined portion, and the side with the vertical surface forms a blocking portion. When the second end of the second clip 101 is pushed close to the second end of the first clip 102, the chamfered surface can slide into the slot 15 more easily, and the chamfered surface can effectively reduce the resistance of the tooth 13 entering the slot 15. At the same time, after the end of the tooth 13 is inserted into the slot 15, the side with the vertical surface will abut against the side wall of the slot 15 to prevent the tooth 13 from sliding out of the slot 15, so that the first clip 102 and the second clip 101 always maintain the clamping effect on the exhaust hose 7, and the pipeline of the exhaust hose 7 is in a normally disconnected state.

[0049] Furthermore, there are multiple slots 15, which are arranged in sequence on the bending portion 14 of the first clip 102 along the sliding direction of the latch 13, so that when the latch 13 is stuck in the slot 15 at different positions, the distance between the second end of the second clip 101 and the second end of the first clip 102 is different, thereby making the extrusion force applied by the second clip 101 and the first clip 102 to the exhaust hose 7 different. The degree of extrusion of the exhaust hose 7 can be adjusted according to actual usage requirements.

[0050] In some other embodiments, the flow stop clamp 10 may also be a dovetail clamp, a book clamp or other components, as long as it can clamp the exhaust hose 7 to close the exhaust hose 7 .

[0051] As a replaceable embodiment, the bending portion 14 formed at the second end of the second clip 101 can also be a plate-like component connected to the second end of the second clip 101, and the plate-like component is connected to the second end of the second clip 101 by means of clamping, gluing, screw fastening, etc.; of course, the bending portion 14 may not be set at the second end of the second clip 101, and only a slot 15 corresponding to the tooth 13 is provided at the second end of the second clip 101, and the number of slots 15 can be one or more.

[0052] In some embodiments, the exhaust assembly 6 further includes a stopper 9, which is mounted on the exhaust hose 7, and a stopper clamp 10 is arranged on the exhaust hose 7 and located between the valve body 3 and the stopper 9. The stopper 9 can be relatively fixedly arranged on the exhaust hose 7, so that the stopper clamp 10 can only be clamped on the portion between the stopper 9 and the valve body 3 of the exhaust hose 7, and the stopper clamp 10 can only be moved on the portion between the stopper 9 and the valve body 3 of the exhaust hose 7 to adjust the position of the stopper clamp 10 on the exhaust hose 7, and the stopper 9 can prevent the stopper clamp 10 from sliding out of the exhaust hose 7. The stopper clamp 10 can be prevented from sliding out of the exhaust hose 7 by the restriction of the stopper 9. Further, the stopper 9 is a stopper ring, which is sleeved on the end of the exhaust hose 7. The stopper ring and the exhaust hose 7 can be fixedly connected or slidably connected. When the stopper ring and the exhaust hose 7 are slidably connected, the stopper ring can be fastened at a certain position of the exhaust hose 7 to adjust the moving space of the stopper clamp 10 on the exhaust hose 7. In other embodiments, the limiting member 9 may also be a block, a pin or other component, as long as it can be fixed at a certain position on the exhaust hose 7 to block the flow stop clamp 10 .

[0053] In some embodiments, the exhaust assembly 6 further includes an exhaust transition pipe 8, one end of the exhaust transition pipe 8 is connected to the inner cavity of the valve body 3, and the other end is connected to the exhaust hose 7, and the exhaust hose 7 is connected to the inner cavity of the valve body 3 through the exhaust transition pipe 8. Specifically, the exhaust transition pipe 8 is a hard pipe extending from the insertion end of the valve body 3, and the exhaust transition pipe 8 has a certain rigidity so that one end is connected to the inner cavity of the valve body 3, and the other end is sleeved with the end of the exhaust hose 7, so that the exhaust hose 7 is connected to the inner cavity of the valve body 3, and the exhaust hose 7 is connected to the inner cavity of the valve body 3 through the exhaust transition pipe 8, thereby effectively avoiding the problem that the hose is easy to bend and affect the exhaust effect, wherein the connection between the end of the exhaust hose 7 and the exhaust transition pipe 8 is more stable, avoiding the exhaust hose 7 made of soft material directly extending into the valve body 3 and connecting with the inner cavity of the valve body 3. When the exhaust hose 7 made of soft material is directly connected to the valve body 3, because the end of the exhaust hose 7 is inserted into the hole opened on the valve body 3, it is easy to have problems of unstable connection or poor sealing. The exhaust transition pipe 8 may be integrally formed with the valve body 3, or may be connected together by gluing or other methods, and this embodiment does not impose any specific limitation on this.

[0054] In some embodiments, the front end of the valve body 3 is provided with a base rotating body 1 and a sealing ring 2, and the rear end of the valve body 3 is provided with a rubber pad 4 and a top cap 5. The rear end of the valve body 3 is used for the insertion of a guide wire, and the front end of the valve body 3 is used to connect with a catheter. The guide wire can be inserted into the catheter, and the base rotating body 1 can be fixedly connected to the catheter, so that the base rotating body 1 drives the catheter to rotate when it rotates, wherein the exhaust assembly 6 is arranged at the rear end of the valve body 3.

[0055] like Figure 3 In the state shown in , the second end of the second clamp 101 is away from the second end of the first clamp 102, the latch tooth 13 is not stuck in the latch groove 15, the second protrusion 11 and the first protrusion 12 do not squeeze the exhaust hose 7, and the exhaust hose 7 is in an open state. At this time, the inner cavity of the valve body 3 is connected to the outside through the exhaust hose 7. In the process of injecting liquid into the inner cavity of the valve body 3, due to the small density of the gas, the gas will gradually rise under the squeezing of the liquid. As the liquid fills the entire inner cavity of the valve body 3 and the exhaust hose 7, the gas gradually flows from the exhaust hose 7 to the outside air, thereby realizing the gas discharge in the inner cavity of the valve body 3. After the gas is discharged, the exhaust hose 7 needs to be closed, as shown in FIG. Figure 4 In the state shown, the second end of the second clamp 101 moves toward the second end of the first clamp 102, so that the second protrusion 11 and the first protrusion 12 clamp the exhaust hose 7, and the exhaust hose 7 is in a disconnected state. At the same time, the latch 13 is engaged in the latch groove 15, so that the exhaust hose 7 remains in a disconnected state, so that the operator can perform subsequent operations. The position of the latch groove 15 where the latch 13 is engaged can be adjusted according to actual use requirements.

[0056] Working principle:

[0057] During the use of the three-way valve assembly, the guide wire catheter and other interventional consumables are passed along the valve body 3. A connector is provided on the valve body 3, which is inclined relative to the valve body 3. The connector is used to connect external equipment to inject contrast agents, saline, heparin and other liquids. As the liquid is injected, the liquid squeezes the air in the inner cavity of the valve body 3. Since both ends of the valve body 3 are sealed, the air in the inner cavity of the valve body 3 will gradually be squeezed to the exhaust hose 7. The flow-stop clamp 10 is controlled to keep the exhaust hose 7 in a passage state, so that the second end of the second clamp 101 is away from the second end of the first clamp 102, so that the second protrusion 11 is away from the first protrusion 12, and the second protrusion 11 and the first protrusion 12 no longer squeeze the exhaust hose 7, then the liquid is filled. When it is full, the gas will be squeezed to the outside through the exhaust hose 7, thereby realizing the discharge of the air in the inner cavity of the valve body 3. After the air in the inner cavity of the valve body 3 is discharged, the stop clamp 10 is controlled to switch the exhaust hose 7 from the passage state to the disconnection state, and the second end of the second clamp 101 is close to the second end of the first clamp 102, so that the second protrusion 11 is close to the first protrusion 12, and the second protrusion 11 and the first protrusion 12 cooperate to squeeze the exhaust hose 7, so that the exhaust hose 7 is switched to the disconnection state; at the same time, the latching tooth 13 at the second end of the second clamp 101 is inserted into the latching groove 15 at the second end of the first clamp 102, so that the stop clamp 10 can keep squeezing the exhaust hose 7, so that the pipeline of the exhaust hose 7 can be in a normally disconnected state.

[0058] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the inventions applied for herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that the present application does not apply for. The specification and embodiments are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A medical three-way valve assembly for interventional treatment, characterized in that: include: A valve body, capable of allowing interventional consumables to pass through; The exhaust assembly comprises an exhaust hose and a stop clamp, wherein the exhaust hose is connected to the insertion end of the valve body and communicates with the inner cavity of the valve body, and the stop clamp is arranged on the exhaust hose to control the on-off state of the exhaust hose.

2. The medical three-way valve assembly for interventional treatment according to claim 1, characterized in that: The flow-stop clamp includes a first clamp and a second clamp that are hinged to each other, and the first clamp and the second clamp are configured to clamp the exhaust hose to close the exhaust hose and release the exhaust hose to open the exhaust hose.

3. The medical three-way valve assembly for interventional treatment according to claim 2, characterized in that: The first ends of the first clamp and the second clamp are hinged, and the exhaust hose is passed through the hinged end of the flow-stop clamp; The first clamping piece is provided with a first protrusion, and the second clamping piece is provided with a second protrusion; When the second end of the second clip moves close to the second end of the first clip, the second protrusion and the first protrusion squeeze the exhaust hose to close the exhaust hose; When the second end of the second clip moves away from the second end of the first clip, the second protrusion moves away from the first protrusion to release the exhaust hose, so that the exhaust hose is opened; The second end is an end far away from the first end.

4. The medical three-way valve assembly for interventional treatment according to claim 3, characterized in that: The first protrusions and the second protrusions are alternately arranged in a direction from the first end to the second end.

5. The medical three-way valve assembly for interventional treatment according to claim 4, characterized in that: The second end of the first clip is provided with a slot, and the second end of the second clip has a latching tooth matched with the slot, and the latching tooth is suitable for being engaged in the slot.

6. The medical three-way valve assembly for interventional treatment according to claim 5, characterized in that: The second end of the first clip is bent toward the second clip to form a bent portion, the slot is arranged on the bent portion, the side of the latch tooth facing the first clip is provided with an inclined portion for cooperating to slide into the slot, and the side away from the first clip is provided with a blocking portion for preventing the latch tooth from sliding out of the slot.

7. The medical three-way valve assembly for interventional treatment according to claim 6, characterized in that: There are multiple card slots, and the multiple card slots are arranged in sequence on the bending portion of the first clip along the sliding direction of the card teeth.

8. The medical three-way valve assembly for interventional treatment according to any one of claims 1 to 7, characterized in that: The exhaust assembly further includes a limiter, which is mounted on the exhaust hose, and the flow stop clamp is located between the valve body and the limiter.

9. The medical three-way valve assembly for interventional treatment according to claim 8, characterized in that: The limiting member is a limiting ring.

10. The medical three-way valve assembly for interventional treatment according to any one of claims 1 to 7, characterized in that: It also includes an exhaust transition pipe, one end of which is connected to the inner cavity of the valve body, and the other end of which is connected to the exhaust hose. The exhaust hose is connected to the inner cavity of the valve body through the exhaust transition pipe.

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