Multi-channel hemostasis valve

Abstract

The utility model is suitable for the field of medical instruments, and provides a multi-channel hemostasis valve which comprises a main pipe, a liquid path channel pipe, an instrument main channel pipe and at least one instrument branch channel pipe. A pipe body at the other end of the main pipe is communicated with the liquid path channel pipe, the instrument main channel pipe and the instrument branch channel pipe, sealing valves are arranged at the ends of the instrument main channel pipe and the instrument branch channel pipe respectively, and the liquid path channel pipe is communicated with an external liquid path. The instrument branch channel pipe is arranged between the liquid path channel pipe and the instrument main channel pipe. The instrument sub-channel tubes are arranged on the same side of the liquid channel tube, so that instruments in the instrument sub-channel tubes can be effectively prevented from entering the liquid channel tube by mistake during delivery, the instruments in the instrument sub-channel tubes can quickly and accurately enter the main tube, and delivery efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments, is applied to interventional surgery, and particularly relates to a multi-channel hemostatic valve. Background Art

[0002] For more complex interventional surgeries such as CTO lesions, coronary artery bifurcation lesions, and nerve stent-assisted coil embolization, some special technologies are needed, such as parallel guidewire technology, dual guidewire track technology, multi-guidewire plaque extrusion technology, SKS technology, and kissing balloon technology. These surgeries require the use of two or more guidewires, microcatheters, or balloons at the same time. Common single-channel hemostatic valves place two or more devices at the same time, which has the disadvantages of severe leakage, difficult installation, and high delivery resistance. For special surgical needs, multi-channel hemostatic valves improved from single-channel hemostatic valves have also appeared on the market. However, this multi-channel hemostatic valve has a complex structure, and the branch channel device is easily misplaced into the liquid channel during delivery, and cannot accurately enter the main channel. The delivery path of the branch channel device needs to be adjusted multiple times, and the delivery efficiency of the device in the multi-channel hemostatic valve is low. Utility Model Content

[0003] The utility model aims to provide a multi-channel hemostatic valve, aiming to solve the technical problems of the multi-channel hemostatic valve in the prior art, which has a complex structure, the inability of the branch channel instruments to accurately enter the main pipe, and the low delivery efficiency.

[0004] The utility model is achieved in this way:

[0005] The utility model provides a multi-channel hemostatic valve, comprising a main pipe, a liquid channel pipe, an instrument main channel pipe and at least one instrument branch channel pipe, wherein one end of the main pipe is provided with a catheter connecting assembly, and a tube body at the other end of the main pipe is respectively connected with the liquid channel pipe, the instrument main channel pipe and the instrument branch channel pipe, and sealing valves are respectively provided at the ends of the instrument main channel pipe and the instrument branch channel pipe, the liquid channel pipe is connected with an external liquid circuit, and the instrument branch channel pipe is arranged between the liquid channel pipe and the instrument main channel pipe.

[0006] Furthermore, the main pipe is coaxially arranged with the main channel pipe of the instrument.

[0007] Furthermore, the instrument channel tube includes a docking section, a curved section and a horizontal section, the two ends of the curved section are respectively connected to the docking section and the horizontal section, one end of the docking section is connected to the main pipe, the axis of the horizontal section is arranged parallel to the axis of the main pipe, and the sealing valve is provided at the end of the horizontal section.

[0008] Furthermore, the length of the main channel tube of the instrument is shorter than the length of the branch channel tube of the instrument.

[0009] Furthermore, the instrument main channel tube and the instrument branch channel tubes are symmetrically arranged along the axis of the main tube.

[0010] Furthermore, the instrument branch channel tube includes a docking section, a curved section and a horizontal section, the two ends of the curved section are respectively connected to the docking section and the horizontal section, one end of the docking section is connected to the main pipe, the axis of the horizontal section is arranged parallel to the axis of the main pipe, the sealing valve is provided at the end of the horizontal section, and the structure of the instrument main channel tube is the same as that of the instrument branch channel tube.

[0011] Furthermore, a partition is provided inside the main pipe along the axial direction, and the partition and the pipe wall of the main pipe form a plurality of independent communication areas, and the communication areas are respectively communicated with the pipe openings of the main channel pipe of the instrument and the branch channel pipe of the instrument.

[0012] Furthermore, the angle between the axes of the main channel tube of the instrument and the branch channel tube of the instrument is in the range of 15°-90°.

[0013] Furthermore, the axis of the liquid channel tube is arranged perpendicularly to the axis of the main tube, and an arc-shaped avoidance surface is provided on the inner wall of the connection between the liquid channel tube and the main tube.

[0014] Furthermore, the tube openings of the liquid channel tube, the instrument main channel tube and the instrument branch channel tube are interconnected.

[0015] The beneficial effect of the present invention is as follows: the present invention improves the setting position of the instrument branch channel, and sets the instrument branch channel tube between the liquid channel tube and the instrument main channel tube, that is, the instrument branch channel tube is set on the same side of the liquid channel tube, which not only simplifies the structure, but also effectively avoids the instrument in the instrument branch channel tube from accidentally entering the liquid channel tube during delivery. The instrument in the instrument branch channel tube can enter the main tube quickly and accurately, thereby improving the delivery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the multi-channel hemostatic valve provided in the first embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional view of the multi-channel hemostatic valve provided in the second embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the multi-channel hemostatic valve provided in the third embodiment of the present utility model;

[0019] Figure 4 It is a partial cross-sectional view of the multi-channel hemostatic valve provided in the fourth embodiment of the utility model;

[0020] Figure 5This is a schematic diagram of the use scenario of the first embodiment of the utility model Figure 1 ;

[0021] Figure 6 This is a schematic diagram of the use scenario of the first embodiment of the utility model Figure 2 ;

[0022] Figure 7 This is a schematic diagram of the use scenario of the second embodiment of the utility model Figure 3 .

[0023] 100-Multi-channel hemostasis valve,

[0024] 10-main pipe, 11-partition plate,

[0025] 20-Liquid channel tube, 21-avoidance surface,

[0026] 30-Main channel tube of the instrument,

[0027] 40- instrument channel tube, 41- docking section, 42- curved section, 43- horizontal section,

[0028] 50-catheter connection assembly,

[0029] 60-Sealing valve,

[0030] 70-micro guide wire,

[0031] 81 - first catheter, 82 - quick-release balloon catheter, 83 - second catheter, 84 - single-channel hemostatic valve. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] 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 a fixed connection, a detachable connection, or an integrated connection, or even a connection that can move relatively; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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.

[0034] In the description of the present invention, the terms "length", "diameter", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0035] The direction "far" used in the present invention is the direction toward the patient, and the direction "near" is the direction away from the patient. The terms "up" and "upper part" refer to the general direction away from the direction of gravity, and the terms "bottom", "lower" and "lower part" refer to the general direction of gravity. The term "front" refers to the side of the interventional surgical robot facing the user from the end device, and "forward" refers to the direction in which the guide wire or catheter is displaced into the body of the surgical patient. The term "backward" refers to the side of the interventional surgical robot facing away from the user from the end device, and "backward" refers to the direction in which the guide wire or catheter is displaced out of the body of the surgical patient. The term "inwardly" refers to the internal part of the feature. The term "outwardly" refers to the outside part of the feature. The term "rotation" includes "forward rotation" and "reverse rotation", wherein "forward rotation" refers to the direction in which the guide wire or catheter is rotated into the body of the surgical patient, and "reverse rotation" refers to the direction in which the guide wire or catheter is rotated out of the body of the surgical patient.

[0036] In addition, the terms "first", "second", etc. 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, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" or "plurality" means two or more.

[0037] Finally, it should be noted that, if there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the protection scope of the utility model.

[0038] The guidewires here include but are not limited to guide guidewires, micro guidewires, stents and other guiding and supporting interventional medical devices, and catheters include but are not limited to guide catheters, micro catheters, angiography catheters, multi-functional tubes (also called intermediate catheters), thrombolytic catheters, balloon dilatation catheters and balloon-expandable stent catheters and other therapeutic interventional medical devices.

[0039] As attached Figure 1 As shown, a multi-channel hemostatic valve 100 provided in the first embodiment of the utility model is used for multi-channel instrument delivery in interventional surgery, including a main pipe 10, a fluid channel pipe 20, an instrument main channel pipe 30 and at least one instrument branch channel pipe 40.

[0040] A catheter connecting assembly 50 is provided at one end of the main pipe 10, and the catheter connecting assembly 50 includes a Luer connector female head for connecting the catheter. In order to facilitate the adaptation of the multi-channel hemostatic valve 100 of this embodiment to the interventional surgical robot, the catheter connecting assembly 50 also includes a gear that can drive the Luer connector female head to rotate. The gear is installed on the slave end of the interventional surgical robot. The doctor automatically controls the rotation of the gear through the slave end to achieve rotation control of the catheter.

[0041] The tube body at the other end of the main pipe 10 is respectively connected with the liquid channel pipe 20, the instrument main channel pipe 30 and the instrument branch channel pipe 40. To simplify the installation, the main pipe 10, the liquid channel pipe 20, the instrument main channel pipe 30 and the instrument branch channel pipe 40 are preferably an integrated structure in this embodiment. The instrument main channel pipe 30 and the instrument branch channel pipe 40 are mainly used for the delivery and inlet control of multiple instruments, and the ends of the instrument main channel pipe 30 and the instrument branch channel pipe 40 are respectively provided with a sealing valve 60. The end of the liquid channel pipe 20 is provided with a Luer joint male head, and the liquid channel pipe 20 is mainly used to communicate with the external liquid circuit. Specifically, the liquid channel pipe 20 is connected to the external liquid circuit valve body and the pipeline to realize the liquid delivery for surgical treatment. The preferred catheter connection assembly 50 and the sealing valve 60 of this embodiment respectively adopt the structure of the locking assembly and the rotating assembly described in the connector sealing mechanism for interventional surgery as described in Chinese patent application CN202222406828.X, and the corresponding content is introduced into this embodiment.

[0042] The instrument branch channel tube 40 is arranged between the liquid channel tube 20 and the instrument main channel tube 30. By arranging the instrument branch channel tube 40 on the same side of the liquid channel tube 20, it can effectively prevent the instrument in the instrument branch channel tube 40 from mistakenly entering the liquid channel tube 20 during delivery, and the instrument in the instrument branch channel tube 40 can quickly and accurately enter the main tube 10, thereby improving the delivery efficiency. In order to better avoid the entanglement of the instrument in the tube and reduce the delivery resistance, the angle A between the axes of the instrument main channel tube 30 and the instrument branch channel tube 40 in this embodiment ranges from 15° to 90°, and the preferred angle A ranges from 15° to 45°. The multi-channel hemostatic valve 100 of this embodiment has an instrument branch channel tube 40 arranged between the liquid channel tube 20 and the instrument main channel tube 30. In other embodiments, according to the requirements of the interventional surgery for multiple channels, a plurality of instrument branch channel tubes 40 can be arranged between the liquid channel tube 20 and the instrument main channel tube 30 accordingly.

[0043] The main pipe 10 of the present embodiment is preferably arranged coaxially with the instrument main channel tube 30, that is, the main pipe 10 and the instrument main channel tube 30 are straight pipes that are connected, and the assembly structure of the main pipe 10 and the instrument main channel tube 30 is similar to the structure of the existing single-channel hemostatic valve. In this way, not only can the instrument delivery resistance in the instrument main channel tube 30 be effectively reduced, but also when adapting to the interventional surgical robot, the control structure of the interventional surgical robot for the existing single-channel hemostatic valve and the multi-channel hemostatic valve of the present embodiment can be simplified, so that both can be used in common.

[0044] The preferred axis of the liquid channel tube 20 of this embodiment is perpendicular to the axis of the main tube 10, and the inner wall of the connection between the liquid channel tube 20 and the main tube 10 is provided with an arc-shaped avoidance surface 21. Since the instruments in the instrument channel tube 40 are delivered into the main tube 10 at a certain angle, the arc-shaped avoidance surface 21 can effectively prevent the instruments in the instrument channel tube 40 from abutting against the inner wall of the connection during delivery, thereby improving the smoothness of instrument delivery and avoiding damage to the instruments. The curvature of the avoidance surface 21 can be appropriately adjusted as needed.

[0045] In order to reduce the space occupied by the multi-channel hemostatic valve 100, the tube openings of the liquid channel tube 20, the instrument main channel tube 30 and the instrument branch channel tube 40 are preferably interconnected in this embodiment. Of course, in other embodiments, the instrument branch channel tube 40 can also be moved away from the liquid channel tube 20 as needed, that is, the tube opening of the instrument branch channel tube 40 is only connected to the tube opening of the instrument main channel tube 30, and the liquid channel tube 20 is only connected to the instrument main channel tube 30.

[0046] As attached Figure 2As shown, a multi-channel hemostatic valve 100 provided in the second embodiment of the utility model is shown. The structure of the second embodiment is similar to that of the first embodiment, and the main difference lies in the difference in the structure of the instrument branch channel tube 40. The instrument branch channel tube 40 of the first embodiment is a straight tube structure, and the instrument branch channel tube 40 of the second embodiment includes a docking section 41, a curved section 42 and a horizontal section 43. The two ends of the curved section 42 are respectively connected to the docking section 41 and the horizontal section 43. One end of the docking section 41 is connected to the main pipe 10, and the axis of the horizontal section 43 is arranged parallel to the axis of the main pipe 10. A sealing valve 60 is arranged at the end of the horizontal section 43. The angle A between the axis of the instrument main channel tube 30 and the docking section 41 ranges from 15° to 45°. The horizontal sections 43 of the instrument main channel tube 30 and the instrument branch channel tube 40 are parallel structures, which are suitable for use on interventional surgical robots. After the instrument enters the sealing valve 60 of the instrument branch channel tube 40, the horizontal section 43 is conducive to the parallel delivery of the instrument. The design of the curved section 42 and the avoidance surface 21 can greatly reduce the delivery resistance of the instrument in the instrument branch channel tube 40 and the main tube 10, improve the smoothness of the instrument delivery, and avoid damage to the instrument. In order to reasonably plan the layout of the instrument main channel tube 30 and the instrument branch channel tube 40, avoid interference, and leave enough space, the preferred length of the instrument main channel tube 30 in this embodiment is less than the length of the instrument branch channel tube 40. Of course, in other embodiments, the length of the instrument main channel tube 30 can also be adjusted to be greater than or equal to the length of the instrument branch channel tube 40 according to design requirements.

[0047] As attached Figure 3 As shown, a multi-channel hemostatic valve 100 is provided in the third embodiment of the utility model. The structure of the third embodiment is similar to that of the first embodiment, and the main difference is that there is a difference in the setting position of the instrument main channel tube 30. The instrument main channel tube 30 and the instrument branch channel tube 40 of the third embodiment are symmetrically arranged along the axis of the main tube 10. The angle A between the axes of the instrument main channel tube 30 and the instrument branch channel tube 40 is in the range of 15°-90°, and the preferred angle A is in the range of 30°-90°. Because the structures of the instrument main channel tube 30 and the instrument branch channel tube 40 are consistent and symmetrically arranged, the resistance of the two in delivery is consistent, and the installation convenience is not much different, which is conducive to the interventional surgical robot to carry out the corresponding symmetrical structural layout.

[0048] As attached Figure 4As shown, a multi-channel hemostatic valve 100 provided in the fourth embodiment of the present utility model. The structure of the fourth embodiment is similar to that of the third embodiment, and the main difference lies in the difference in the structure of the instrument main channel tube 30 and the instrument branch channel tube 40. The instrument main channel tube 30 and the instrument branch channel tube 40 of the third embodiment are straight tube structures. The structure of the instrument branch channel tube 40 of the fourth embodiment is the same as that of the instrument branch channel tube 40 in the second embodiment, including a docking section 41, a curved section 42 and a horizontal section 43. The two ends of the curved section 42 are respectively connected to the docking section 41 and the horizontal section 43. One end of the docking section 41 is connected to the main pipe 10. The axis of the horizontal section 43 is arranged parallel to the axis of the main pipe 10. The end of the horizontal section 43 is provided with a sealing valve 60. The advantages of this structure refer to the description of the second embodiment. The structure of the instrument main channel tube 30 of the fourth embodiment is the same as that of the instrument branch channel tube 40. The angle A between the axes of the docking section of the instrument main channel tube 30 and the docking section 41 of the instrument branch channel tube 40 is in the range of 30°-90°. In this embodiment, a partition 11 is preferably provided in the main pipe 10 along the axial direction, and the partition 11 and the pipe wall of the main pipe 10 form a plurality of independent communication areas, and the communication areas are respectively connected to the pipe openings of the instrument main channel pipe 30 and the instrument branch channel pipe 40. The main channel pipe 30 and the instrument branch channel pipe 40 are isolated by the partition 11, which can better prevent the instruments in the main channel pipe 30 and the instrument branch channel pipe 40 from being mistakenly sent to the other party's pipeline. The design of the partition 11 can also be applied to the first embodiment, the second embodiment and the third embodiment.

[0049] As attached Figure 1 , 5 As shown, the multi-channel hemostatic valve 100 of the first embodiment of the utility model is applied to the first use scenario of interventional surgery. Specifically, Figure 5 The schematic diagram of manual dual-channel instrument delivery is shown in FIG. 8 . The first catheter 81 is installed on the catheter connection assembly 50 of the multi-channel hemostatic valve 100. The instrument main channel tube 30 of the multi-channel hemostatic valve 100 is docked with the instrument of the first channel. The instrument of the first channel is delivered along the axial direction of the instrument main channel tube 30. The instrument branch channel tube 40 is docked with the instrument of the second channel. The instrument of the second channel is delivered along the axial direction of the instrument branch channel tube 40. The two channels can deliver the same or different instruments according to surgical needs. In this embodiment, each channel is installed with a micro guide wire 70 and a quick delivery balloon catheter 82. Through the angle design of the instrument main channel tube 30 and the instrument branch channel tube 40, the two channels are staggered, which is convenient for operation, delivery, and installation adjustment. At the same time, it also solves the problem that a single-channel hemostatic valve is prone to leakage when accommodating multiple instruments or that two single channels are too large when spliced ​​together.

[0050] As attached Figure 6As shown, the multi-channel hemostatic valve 100 of the first embodiment of the utility model is applied to the second use scenario of interventional surgery. The instruments delivered in the second use scenario are the same as those in the first use scenario, and the main difference is that the delivery direction of the instruments in the second channel is different. Unlike the delivery of the instruments in the second channel in the first use scenario along the axial direction of the instrument branch channel tube 40, the delivery direction of the instruments in the second channel in the second use scenario is parallel to the delivery direction of the instruments in the first channel. The instruments in the second channel will have a corner when entering the instrument branch channel tube 40. The instruments in the two channels are delivered in parallel, which is conducive to the dual-channel layout of the interventional surgery robot.

[0051] As attached Figure 2 , 7 As shown, the multi-channel hemostatic valve 100 of the second embodiment of the utility model is applied to the third use scenario of interventional surgery. The delivery method of the third use scenario is similar to that of the second use scenario. The main difference lies in the specific structure of the multi-channel hemostatic valve 100 and the delivered device. The third use scenario adopts the multi-channel hemostatic valve 100 of the second embodiment, and the device channel tube 40 has a docking section 41, a curved section 42 and a horizontal section 43. Each channel is installed with a micro guide wire 70 and a second catheter 83, wherein the second catheter 83 is installed through a single-channel hemostatic valve 84.

[0052] It can be seen from the above usage scenarios that the multi-channel hemostatic valve 100 of this embodiment is applicable to both manual surgery and interventional surgical robot surgery. The multi-channel hemostatic valve 100 of this embodiment is used to install and deliver multi-channel instruments, thereby avoiding resistance interference of the instrument and valve body leakage, and can effectively solve the problem of multiple instrument channels in existing interventional surgeries.

[0053] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-channel hemostatic valve, comprising a main pipe, a liquid channel pipe, an instrument main channel pipe and at least one instrument branch channel pipe, wherein one end of the main pipe is provided with a catheter connection assembly, and the tube body at the other end of the main pipe is respectively connected with the liquid channel pipe, the instrument main channel pipe and the instrument branch channel pipe, and the ends of the instrument main channel pipe and the instrument branch channel pipe are respectively provided with sealing valves, and the liquid channel pipe is connected with an external liquid circuit, characterized in that: The instrument branch channel tube is arranged between the liquid channel tube and the instrument main channel tube.

2. The multi-channel hemostatic valve according to claim 1, characterized in that: The main pipe is coaxially arranged with the main channel pipe of the instrument.

3. The multi-channel hemostatic valve according to claim 2, characterized in that: The instrument branch channel tube includes a docking section, a curved section and a horizontal section, the two ends of the curved section are respectively connected to the docking section and the horizontal section, one end of the docking section is connected to the main pipe, the axis of the horizontal section is arranged parallel to the axis of the main pipe, and the sealing valve is provided at the end of the horizontal section.

4. The multi-channel hemostatic valve according to claim 3, characterized in that: The length of the main channel tube of the instrument is shorter than the length of the branch channel tube of the instrument.

5. The multi-channel hemostatic valve according to claim 1, characterized in that: The instrument main channel tube and the instrument branch channel tube are symmetrically arranged along the axis of the main tube.

6. The multi-channel hemostatic valve according to claim 5, characterized in that: The instrument branch channel tube comprises a docking section, a curved section and a horizontal section, the two ends of the curved section are respectively connected to the docking section and the horizontal section, one end of the docking section is connected to the main pipe, the axis of the horizontal section is arranged parallel to the axis of the main pipe, the sealing valve is arranged at the end of the horizontal section, and the structure of the instrument main channel tube is the same as that of the instrument branch channel tube.

7. The multi-channel hemostatic valve according to claim 5, characterized in that: A partition is arranged inside the main pipe along the axial direction, and the partition and the pipe wall of the main pipe form a plurality of independent communication areas, and the communication areas are respectively communicated with the pipe openings of the main channel pipe of the instrument and the branch channel pipe of the instrument.

8. The multi-channel hemostatic valve according to claim 1, characterized in that: The included angle between the axes of the main channel tube of the instrument and the branch channel tube of the instrument is in the range of 15°-90°.

9. The multi-channel hemostatic valve according to claim 1, characterized in that: The axis of the liquid channel tube is arranged perpendicularly to the axis of the main tube, and an arc-shaped avoidance surface is arranged on the inner wall of the connection between the liquid channel tube and the main tube.

10. The multi-channel hemostatic valve according to claim 1, characterized in that: The tube openings of the liquid channel tube, the instrument main channel tube and the instrument branch channel tube are interconnected.

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