Valve delivery device

Abstract

The present invention provides a valve delivery device, which belongs to the technical field of medical devices, and comprises: an inner tube, which is arranged in a shell; an outer tube; a transfer mechanism, a first operating component; an adjustable bending mechanism, an adjustable bending component, and a second operating component connected to the adjustable bending component; the second operating component is independent of the first operating component and is used to drive the adjustable bending component to bend to a desired angle, and the first operating end of the first operating component and the second operating end of the second operating component are both exposed to the shell; with the valve delivery device provided by the present invention, a doctor can adjust the overall angle of the valve by operating the second operating end. At the same time, since the first operating component and the second operating component are independently arranged, the doctor can adjust the position and angle of the valve separately or simultaneously to accommodate more types of patients.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a valve delivery device. Background Art

[0002] Heart valve disease is a common heart disease in my country, and artificial heart valve replacement is the main means and the most effective way to treat heart valve disease. When performing artificial heart valve replacement, interventional surgery is required, and the valve delivery system is used to deliver the valve stent to the center of the valve that needs to be treated.

[0003] For example, an artificial heart valve delivery system in the prior art includes an inner tube, an outer tube, a handle housing, an adjustable bending mechanism and a transfer mechanism. The outer tube is sleeved outside the inner tube, and the proximal end and the distal end of the inner tube correspond to the proximal end and the distal end of the outer tube that can be extended out, respectively. The transfer mechanism is used to drive the outer tube to slide back and forth relative to the inner tube in its axial direction. The transfer mechanism includes a knob that is sleeved outside the outer tube and rotatably arranged on the handle housing, and a threaded tube fixed on the distal end of the knob. The inner thread of the threaded tube is threaded with a second screw, and the second screw is sleeved on the outer tube and fixedly connected to the outer tube; the adjustable bending mechanism is used to drive the inner tube and the outer tube as a whole to bend the required angle relative to their axis, so as to fit the valve to the valve position that needs to be treated in the human body. The adjustable bending mechanism includes an adjustable bending tube that is sleeved outside the inner tube and located inside the outer tube, a first screw rod fixed on the proximal end of the knob, and a traction wire whose distal end is fixed in a groove on the outer wall of the adjustable bending tube, and whose proximal end extends axially along the inner tube and is radially bent to extend out of the outer tube. The proximal end of the traction wire is wound around a linkage component that is threadedly fitted on the outside of the first screw rod.

[0004] In the valve delivery system of this structure, before the valve replacement surgery, the valve is pre-sheathed on the proximal end of the inner tube and located inside the proximal end of the outer tube, in a retracted and unreleased state. At the beginning of the surgery, the doctor inserts the proximal end of the outer tube into the position in the human body where the valve needs to be replaced, and then turns the knob clockwise. Since the second screw and the threaded tube form a first screw structure, the second screw drives the outer tube to retract toward the proximal end, exposing the valve, and the valve is released instantly; at the same time, since the first screw and the linkage component form a second screw structure, the linkage component will drive the traction wire to move toward the distal end, thereby driving the adjustable bend tube, the inner tube and the outer tube to bend to the required angle, thereby adjusting the bending angle of the valve; after the surgery is completed, the doctor turns the knob counterclockwise again, and the outer tube moves toward the distal end relative to the inner tube to reset. At the same time, the traction wire moves toward the proximal end, and the bending angles of the adjustable bend tube, the inner tube and the outer tube gradually decrease and reset to the initial non-bent state, and finally the entire delivery system is pulled out of the patient's body.

[0005] The transfer mechanism and the adjustable bending mechanism are controlled simultaneously by a knob. As long as the knob is operated, the transfer mechanism and the adjustable bending mechanism will act simultaneously. The distance that the transfer mechanism drives the outer tube to move and the bending angle that the adjustable bending mechanism drives the valve to bend are relatively fixed. However, different patients have different valve bending angles during treatment. When the valve is released and bent at a fixed angle, the valve cannot fit the patient's valve, resulting in the delivery system being applicable only to specific types of patients. The adjustable bending mechanism cannot be independently operated to adjust the valve bending angle according to different patients. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the adjustable bending mechanism of the valve delivery system in the prior art cannot independently adjust the valve bending angle, resulting in the delivery system being unable to adapt to different patients, thereby providing a valve delivery device.

[0007] In order to solve the above technical problems, the present invention provides a valve delivery device, comprising:

[0008] An inner tube, disposed in the shell;

[0009] An outer tube, sleeved outside the inner tube and located inside the shell;

[0010] A transfer mechanism, provided on the housing, comprising a first operating assembly for driving the outer tube to slide reciprocally along the axial direction relative to the inner tube;

[0011] An adjustable bending mechanism is arranged on the housing, comprising an adjustable bending assembly arranged outside the inner tube and located inside the outer tube, the distal end of the adjustable bending assembly extending along the axial direction of the inner tube, the proximal end of the adjustable bending assembly extending beyond the proximal end of the outer tube and bending and extending along the radial direction of the inner tube, and a second operating assembly connected to the proximal end of the adjustable bending assembly;

[0012] The second operating component is independent of the first operating component and is used to drive the adjustable bending component to bend to a desired angle;

[0013] The first operating end of the first operating component and the second operating end of the second operating component are both exposed outside the housing.

[0014] As a preferred technical solution, one of the first operating assembly and the second operating assembly is arranged on the shell along the axial direction of the inner tube, and the other is arranged on the shell along a direction intersecting the axial direction of the inner tube.

[0015] As a preferred technical solution, the shell includes a main body extending along the axial direction of the inner tube and an extension part intersecting and fixed on the main body, so that the shell is Y-shaped;

[0016] The second operating component is arranged on the extending portion, and the second operating end extends out of the extending portion; the first operating component is arranged on the main body, and the first operating end is arranged on the outer wall of the main body.

[0017] As a preferred technical solution, the second operating component includes a driving member rotatably arranged on the housing, the proximal end of the driving member serves as the second operating end, and the proximal end of the adjustable bending component is connected to the distal end of the driving member;

[0018] The driving member drives the proximal end of the adjustable bending component to move by rotating.

[0019] As a preferred technical solution, the driving member is a first screw; the second operating assembly also includes

[0020] A sliding block is threadably mounted on the first screw rod, and the proximal end of the adjustable bending component is fixed to the distal end of the driving member by being fixed to the sliding block.

[0021] As a preferred technical solution, the second operating assembly further includes a first rotating cap fixed on the second operating end;

[0022] And / or the second operating component also includes at least one guide member extending along the sliding direction of the sliding block, and a slide groove matching the guide member one by one, one of the guide member and the slide groove is arranged on the shell, and the other is arranged on the sliding block.

[0023] As a preferred technical solution, the adjustable bending component includes

[0024] An adjustable elbow is sleeved on the inner tube and is located inside the outer tube, and the proximal end of the adjustable elbow extends out of the proximal end of the outer tube; and

[0025] The traction wire is made of a bendable material, with its distal end fixed on the adjustable elbow, and its proximal end bent along the radial direction of the inner tube, passing through the part of the adjustable elbow extending outside the proximal end of the outer tube, extending outward, and connected to the second operating component.

[0026] As a preferred technical solution, it further comprises a first fixing seat arranged in the housing, and the proximal end of the adjustable elbow is sealed and fixed on the first fixing seat through a first sealing member;

[0027] A first mounting hole is provided on the first fixing seat, and a second mounting hole communicating with the first mounting hole is provided on the housing at a position corresponding to the first mounting hole; and

[0028] A first one-way valve is arranged in the first mounting hole and the second mounting hole, wherein the fluid outlet of the first one-way valve is communicated with the inner cavity of the adjustable elbow, and the fluid inlet thereof is located outside the shell.

[0029] As a preferred technical solution, it also includes a second fixing seat arranged in the shell, and the inner hole of the second fixing seat is sealed and slidably connected to the outer wall surface of the outer tube through a second sealing member;

[0030] The distal end of the second fixing seat is connected to the proximal end of the first fixing seat, and the proximal end of the adjustable elbow passes through the second fixing seat to be fixed on the first fixing seat;

[0031] The second fixing seat is provided with a third mounting hole, and the housing is provided with a fourth mounting hole at a position corresponding to the third mounting hole and connected with the third mounting hole;

[0032] A second one-way valve is arranged in the third mounting hole and the fourth mounting hole, wherein the fluid outlet of the second one-way valve is communicated with the inner cavity of the outer tube, and the fluid inlet thereof is located outside the shell.

[0033] As a preferred technical solution, the first operating component includes

[0034] A threaded tube rotatably disposed on the inner wall of the shell, wherein the distal end of the threaded tube is bent into a clearance hole on the shell and serves as the first operating end;

[0035] A sliding piece is threadably fitted in the threaded tube; the sliding piece is fixedly sleeved on the outer tube.

[0036] The technical solution of the present invention has the following advantages:

[0037] 1. The valve delivery device provided by the present invention has an outer tube and an inner tube in a shell, and a transfer mechanism is connected to the shell. The first operating component of the transfer mechanism can drive the outer tube to slide relative to the inner tube. The first operating component is connected to a first operating end, and a doctor can adjust the position of the valve by operating the first operating end; an adjustable bending component is also connected to the shell, and the distal end of the adjustable bending mechanism extends axially along the inner tube, and the proximal end of the adjustable bending mechanism extends out of the proximal end of the outer tube and extends radially along the inner tube and is connected to a second operating component, and the second operating component is connected to a second operating end. A doctor can adjust the overall angle of the valve by operating the second operating end. At the same time, since the first operating component and the second operating component are independently arranged, the doctor can adjust the position and angle of the valve separately or simultaneously to accommodate more types of patients.

[0038] 2. In the valve delivery device provided by the present invention, one of the first operating component and the second operating component is arranged on the shell along the axial direction of the inner tube, and the other is arranged on the shell along a direction intersecting the axial direction of the inner tube, so that the first operating component and the second operating component are arranged separately, which is convenient for the doctor to adjust the position and angle of the valve separately, and avoids the possibility of operating errors by the doctor if they are arranged together.

[0039] 3. The valve delivery device provided by the present invention comprises a shell including a main body and an extension portion, wherein the extension portion is arranged to intersect with the main body so that the shell is Y-shaped, a first operating component is arranged on the main body, a first operating end is arranged on the outer side wall of the main body, and a second operating component is arranged on the extension portion, and the second operating end extends out of the extension portion. When a doctor operates the first operating end, it will not affect the transfer mechanism. At the same time, when the doctor operates the second operating end, it will not affect the adjustable bending component, so that the doctor can operate the device more accurately.

[0040] 4. The valve delivery device provided by the present invention, the second operating component includes a rotatable driving member arranged in the shell, the proximal end of the driving member is the second operating end, the distal end of the driving end is connected to the proximal end of the adjustable bending component, the driving member can drive the proximal end of the adjustable bending component to move by rotating, when the second operating end is operated, the driving member is rotated, driving the proximal end of the adjustable bending component to move, and then the distal end of the adjustable bending component adjusts the angle of the valve.

[0041] 5. The valve delivery device provided by the present invention comprises a first screw as the driving member, on which a sliding block is fitted, and the proximal end of the adjustable bending component is fixed on the sliding block. The first screw is driven to rotate, so that the sliding block makes a linear motion along the axial direction of the first screw, thereby driving the proximal end of the adjustable bending component to move, and the distal end of the adjustable bending component is adjusted to adjust the angle of the valve. The first screw is threadedly connected to the sliding block, and the threaded connection has high precision, which can meet the requirements of precise adjustment of the valve.

[0042] 6. In the valve delivery device provided by the present invention, a first rotating cap is connected to the second operating end of the second operating component, and the first rotating cap is arranged outside the shell to facilitate the doctor to operate the adjustable bending component.

[0043] 7. The valve delivery device provided by the present invention is provided with a guide member and a slide groove along the sliding direction of the sliding block, one of which is arranged on the shell and the other is arranged on the sliding block, so that the sliding block will not be offset during the sliding process and the sliding block is prevented from rotating synchronously with the first screw.

[0044] 8. The valve delivery device provided by the present invention, the adjustable bend component also includes an adjustable bend tube, the distal end of a traction line is fixed on the adjustable bend tube, the traction line is made of a bendable material, the proximal end of the traction line is connected to the second operating component, when the doctor operates the second operating component, the proximal end of the traction line moves, and under the elastic action of the traction line itself, the distal end of the traction line is offset to achieve angle adjustment of the distal end of the adjustable bend component, thereby achieving angle adjustment of the valve.

[0045] 9. The valve delivery device provided by the present invention has a first fixing seat in the shell, and the proximal end of the adjustable bend is sealed and fixed on the first fixing seat. It also includes a first one-way valve, which is arranged on the first fixing seat. The first one-way valve passes through the shell and the first fixing seat and is connected with the adjustable bend, and the fluid outlet of the first one-way valve is connected with the inner cavity of the adjustable bend, and the fluid inlet is located outside the shell, so that the doctor can inject physiological saline into the adjustable bend through the first one-way valve to prevent bubbles.

[0046] 10. The valve delivery device provided by the present invention also has a second fixing seat in the shell, the proximal end of the outer tube is sealed and connected to the second fixing seat, a second one-way valve is provided on the second fixing seat, the second one-way valve passes through the shell and is connected to the outer tube, and the fluid inlet of the second one-way valve is connected to the inner cavity of the outer tube, and the fluid inlet is located outside the shell, so that the doctor can inject physiological saline into the outer tube through the second one-way valve to prevent bubbles.

[0047] 11. The valve delivery device provided by the present invention comprises a first operating component including a rotatable threaded tube arranged on the inner wall of the shell, the distal end of the threaded tube is bent into a clearance hole of the shell to form a first operating end, a sliding member is fitted in the threaded tube, the sliding member is connected to an outer tube, and a second rotating cap is fixed on the first operating end. The doctor rotates the second rotating cap to rotate the threaded tube, and when the threaded tube rotates, the sliding member is driven to move in the threaded tube, and the sliding member drives the outer tube to move, thereby completing the position adjustment of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 It is a schematic structural diagram of the valve delivery device of the present invention;

[0050] Figure 2 for Figure 1 A-A cross-sectional schematic diagram;

[0051] Figure 3 It is the connection diagram of the fixed seat;

[0052] Figure 4 is a front view of the adjustable bending assembly;

[0053] Figure 5 It is a structural schematic diagram of an adjustable bending component;

[0054] Figure 6 is a schematic diagram of the structure of the transfer mechanism;

[0055] Figure 7 It is a schematic diagram of the connection between the one-way valve and the housing.

[0056] Description of reference numerals:

[0057] 1. Shell; 2. First operating component; 3. Second rotating cap; 4. First rotating cap; 5. Second operating component; 6. Outer tube; 7. Inner tube; 8. Second one-way valve; 9. First one-way valve; 10. Pull line; 11. First screw rod; 12. Sliding block; 13. Second mounting hole; 14. First mounting hole; 15. First fixed seat; 16. Second fixed seat; 17. Third mounting hole; 18. Fourth mounting hole; 19. Slide groove; 20. Guide member; 21. Adjustable elbow; 22. Sliding member; 23. Threaded tube. DETAILED DESCRIPTION

[0058] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0062] This embodiment provides a specific implementation of the valve delivery device, such as Figure 1 As shown, an outer tube 6 and an inner tube 7 are provided in the shell 1, and a transfer mechanism is connected to the shell 1. The first operating component 2 of the transfer mechanism can drive the outer tube 6 to slide relative to the inner tube 7. The first operating component 2 is connected to a first operating end, and the first operating end is connected to a second rotating cap 3. The doctor operates the second rotating cap 3 to adjust the position of the valve; an adjustable bending mechanism is also connected to the shell 1, and the distal end of the adjustable bending mechanism extends axially along the inner tube 7, and the proximal end of the adjustable bending mechanism extends out of the proximal end of the outer tube 6 and extends radially along the inner tube 7. The adjustable bending mechanism includes an adjustable bending component, and the adjustable bending component is connected to a second operating component 5, and the second operating component 5 is connected to a second operating end, and the second operating end is connected to a first rotating cap 4. The doctor operates the first rotating cap 4 to adjust the overall angle of the valve. At the same time, since the first operating component 2 and the second operating component 5 are independently arranged, the doctor can adjust the position and angle of the valve separately or simultaneously to accommodate more types of patients.

[0063] The shell 1 includes a main body and an extension part, and the extension part is tilted on the main body so that the shell 1 is Y-shaped. The first operating component 2 is arranged on the main body, the second rotating cap 3 is arranged on the outer side wall of the main body, the second operating component 5 is arranged on the extension part, and the first rotating cap 4 extends out of the extension part. When the doctor operates the second rotating cap 3, it will not affect the transfer mechanism. At the same time, when the doctor operates the first rotating cap 4, it will not affect the adjustable bending component, so that the doctor can operate this device more accurately.

[0064] As an alternative embodiment, the main body and the extension portion of the shell may also be coaxially arranged, and may also be in other shapes as long as the operating ends of the transfer mechanism and the adjustable bending mechanism do not affect each other.

[0065] like Figure 2 and Figure 3As shown, the adjustable bend assembly also includes an adjustable bend tube 21, which is sleeved on the outside of the inner tube 7 and inside the outer tube 6. The proximal end of the adjustable bend tube 21 extends out of the proximal end of the outer tube 6, and the adjustable bend tube 21 and the outer tube 6 are slidably connected. The distal end of the traction wire 10 is fixed on the adjustable bend tube 21, and the traction wire 10 is made of a bendable material. The proximal end of the traction wire 10 is connected to the second operating assembly 5. When the doctor operates the second operating assembly 5, the proximal end of the traction wire 10 moves. Under the elastic action of the traction wire 10 itself, the distal end of the traction wire 10 is angled, thereby realizing the angle adjustment of the distal end of the adjustable bend assembly, thereby realizing the angle adjustment of the valve.

[0066] like Figure 4 As shown, the second operating component 5 includes a rotatable driving member arranged in the shell 1, and the driving member is a first screw rod 11. A sliding block 12 is fitted on the first screw rod 11, and the proximal end of the traction line 10 is fixed on the sliding block 12. By driving the first screw rod 11 to rotate, the sliding block 12 makes a linear motion along the axial direction of the first screw rod 11, thereby driving the proximal end of the traction line 10 to move, and the distal end of the traction line 10 adjusts the angle of the valve. The first screw rod 11 is threadedly connected to the sliding block 12. The threaded connection has high precision and can meet the precise adjustment of the valve.

[0067] The first rotating cap 4 is connected to the second operating end of the second operating component 5. The first rotating cap 4 is arranged outside the shell 1 to facilitate the doctor to operate the adjustable bending component.

[0068] like Figure 5 As shown, a guide member 20 and a slide groove 19 are provided along the sliding direction of the sliding block 12. The guide member 20 is arranged on the housing 1, and the slide groove 19 is arranged on the sliding block 12, so that the sliding block 12 will not be offset during the sliding process, and the sliding block 12 and the first screw rod 11 are prevented from rotating synchronously.

[0069] As an alternative implementation, the guide member 20 may also be arranged on the sliding block 12 , while the sliding groove 19 is arranged on the housing 1 .

[0070] like Figure 6 As shown, the first operating component 2 includes a threaded tube 23 rotatably arranged on the inner wall of the shell 1, and the distal end of the threaded tube 23 is bent into the clearance hole of the shell 1 to form a first operating end. The sliding member 22 is fitted in the threaded tube 23, and the sliding member 22 is connected to the outer tube 6. A second rotating cap 3 is fixed on the first operating end. The doctor rotates the second rotating cap 3 to rotate the threaded tube 23. When the threaded tube 23 rotates, it drives the sliding member 22 to move in the threaded tube 23, and the sliding member 22 drives the outer tube 6 to move, thereby completing the position adjustment of the valve.

[0071] As an alternative embodiment, the transfer mechanism may also be other mechanisms, for example, a meshing structure of a gear and a rack, wherein the rack is fixedly connected to the outer tube 6, thereby driving the outer tube 6 to slide axially.

[0072] like Figure 7 As shown, a first fixing seat 15 is provided in the shell 1, and a first mounting hole 14 is provided on the first fixing seat 15. A second mounting hole 13 is provided on the shell 1 at a position opposite to the first mounting hole 14. The proximal end of the adjustable elbow 21 passes through the second fixing seat 16 and is sealed and fixed on the inner hole of the first fixing seat 15. A first one-way valve 9 is provided in the first mounting hole 14 and the second mounting hole 13. The first one-way valve 9 passes through the shell 1 and the first fixing seat 15 and is connected with the adjustable elbow 21, and the fluid outlet of the first one-way valve 9 is connected with the inner cavity of the adjustable elbow 21. The fluid inlet is located outside the shell 1, so that the doctor can inject physiological saline into the adjustable elbow 21 through the first one-way valve 9 to prevent bubbles.

[0073] like Figure 7 As shown, a second fixing seat 16 is also provided in the shell 1, and the proximal end of the second fixing seat 16 is fixedly connected to the distal end of the first fixing seat 15, and a third mounting hole 17 is provided on the second fixing seat 16. A fourth mounting hole 18 is provided on the shell 1 at a position opposite to the third mounting hole 17, and the proximal end of the outer tube 6 is sealed and connected to the second fixing seat 16, and a second one-way valve 8 is provided on the second fixing seat 16. The second one-way valve 8 is arranged in the third mounting hole 17 and the fourth mounting hole 18. The second one-way valve 8 passes through the shell 1 and is connected to the outer tube 6, and the fluid inlet of the second one-way valve 8 is connected to the inner cavity of the outer tube 6. The fluid inlet is located outside the shell 1, so that the doctor can inject physiological saline into the outer tube 6 through the second one-way valve 8 to prevent bubbles.

[0074] When using the above-mentioned valve delivery device, it is necessary to first discharge the air or bubbles in the outer tube 6 outside the human body, open the second one-way valve 8, and inject physiological saline into the fluid inlet of the second one-way valve 8. The physiological saline enters the inner cavity of the outer tube 6 through the fluid outlet to empty the bubbles in the outer tube 6. After the bubbles are emptied, close the second one-way valve 8. Similarly, open the first one-way valve 9, and inject physiological saline into the fluid inlet of the first one-way valve 9. The physiological saline enters the inner cavity of the adjustable bend 21 through the fluid outlet to empty the bubbles in the inner cavity of the adjustable bend 21. After the bubbles are emptied, close the first one-way valve 9.

[0075] Working principle:

[0076] The transfer mechanism and the adjustable bending component are respectively arranged on the main body and the extension part of the shell 1. The adjustable bending component and the transfer mechanism are independently arranged. An adjustable bending pipe 21 is sleeved on the outer side of the inner tube 7. A traction line 10 is fixedly connected in the adjustable bending pipe 21. The other end of the traction line 10 is fixed on the sliding block 12 of the adjustable bending component. The sliding block 12 is connected to the first screw rod 11 through a thread. One end of the first screw 11 is connected to the first rotating cap 4. The first rotating cap 4 is rotated to rotate the first screw rod 11. When the first screw rod 11 rotates, the sliding block 12 makes a linear motion, thereby driving the traction line 10 fixed on the sliding block 12 to move together. The traction line 10 generates a spring under its own elastic force. Bending, so that the distal end of the adjustable curved tube 21 drives the distal end of the inner tube 7 to rotate a certain angle, completing the angle adjustment of the valve; the transfer mechanism is connected to the outer tube 6, and the first operating component 2 of the transfer mechanism is provided with a threaded tube 23 rotatably mounted on the inner wall of the shell 1, and a sliding member 22 is connected to the threaded tube 23 through a thread, and the proximal end of the outer tube 6 is fixed on the sliding member 22, and the distal end of the threaded tube 23 is bent into the clearance hole of the shell 1 to form a first operating end, and the first operating end is connected to the second rotating cap 3, and the second rotating cap 3 is rotated to rotate the threaded rod, and the threaded rod rotates while driving the sliding member 22 to make a linear motion, and the sliding member 22 drives the outer tube 6 to move, so as to achieve the effect of adjusting the valve position. When the doctor operates the second rotating cap 3, it will not affect the transfer mechanism, and at the same time, when the doctor operates the first rotating cap 4, it will not affect the adjustable bending component, so that the doctor can operate this device more accurately.

[0077] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A valve delivery device, characterized in that: include; An inner tube (7) is arranged inside the housing (1); An outer tube (6) is sleeved outside the inner tube (7) and is located inside the shell (1); A transfer mechanism, arranged on the housing (1), comprising a first operating assembly (2) for driving the outer tube (6) to slide reciprocatingly along the axial direction of the inner tube (7); An adjustable bending mechanism is arranged on the housing (1), comprising an adjustable bending component arranged outside the inner tube (7) and located inside the outer tube (6), the distal end of the adjustable bending component extending along the axial direction of the inner tube (7), the proximal end of the adjustable bending component extending beyond the proximal end of the outer tube (6) and extending in a radial direction of the inner tube (7), and a second operating component (5) connected to the proximal end of the adjustable bending component; The second operating component (5) is independent of the first operating component (2) and is used to drive the adjustable bending component to bend to a desired angle; The first operating end of the first operating component (2) and the second operating end of the second operating component (5) are both exposed outside the housing (1); The shell (1) comprises a main body extending axially along the inner tube (7) and an extension portion intersecting and fixed on the main body, so that the shell (1) is Y-shaped; The second operating component (5) is arranged on the extension portion, the second operating end extends out of the extension portion, the first operating component (2) is arranged on the main body along the axial direction of the inner tube (7), and the first operating end is arranged on the outer wall of the main body; The adjustable bend assembly comprises an adjustable bend tube (21) and a traction wire (10). The adjustable bend tube (21) is sleeved on the inner tube (7) and is located inside the outer tube (6), and the proximal end of the adjustable bend tube (21) extends out of the proximal end of the outer tube (6). The traction wire (10) is made of a bendable material, and its distal end is fixed to the adjustable bend tube (21). Its proximal end is radially bent along the inner tube (7) and passes through the portion of the adjustable bend tube (21) extending out of the proximal end of the outer tube (6) to extend outwards, and is connected to the second operating assembly (5).

2. The valve delivery device according to claim 1, characterized in that: The second operating component (5) comprises a driving member rotatably arranged on the housing (1), the proximal end of the driving member serving as the second operating end, and the proximal end of the adjustable bending component being connected to the distal end of the driving member; The driving member drives the proximal end of the adjustable bending component to move by rotating.

3. The valve delivery device according to claim 2, characterized in that: The driving member is a first screw rod (11); the second operating assembly (5) also includes A sliding block (12) is threadably mounted on the first screw rod (11); the proximal end of the adjustable bending component is fixed to the distal end of the driving member by being fixed to the sliding block (12).

4. The valve delivery device according to claim 3, characterized in that: The second operating assembly (5) further comprises a first rotating cap (4) fixed on the second operating end; And / or the second operating assembly further comprises at least one guide member (20) extending along the sliding direction of the sliding block (12), and a slide groove (19) matched one-to-one with the guide member (20), one of the guide member (20) and the slide groove (19) being arranged on the housing (1), and the other being arranged on the sliding block (12).

5. The valve delivery device according to claim 1, characterized in that: It also comprises a first fixing seat (15) disposed in the housing (1), and the proximal end of the adjustable elbow (21) is sealed and fixed on the first fixing seat (15) via a first sealing member; The first fixing seat (15) is provided with a first mounting hole (14), and the housing (1) is provided with a second mounting hole (13) in communication with the first mounting hole (14) at a position corresponding to the first mounting hole (14); and A first one-way valve (9) is arranged in the first mounting hole (14) and the second mounting hole (13), wherein the fluid outlet of the first one-way valve (9) is connected to the inner cavity of the adjustable elbow (21), and the fluid inlet thereof is located outside the housing (1).

6. The valve delivery device according to claim 5, characterized in that: It also includes a second fixing seat (16) disposed in the housing (1), wherein an inner hole of the second fixing seat (16) is sealed and slidably connected to an outer wall surface of the outer tube (6) via a second sealing member; The distal end of the second fixing seat (16) is connected to the proximal end of the first fixing seat (15), and the proximal end of the adjustable elbow (21) passes through the second fixing seat (16) to be fixed on the first fixing seat (15); The second fixing seat (16) is provided with a third mounting hole (17), and the housing (1) is provided with a fourth mounting hole (18) at a position corresponding to the third mounting hole (17) and communicating with the third mounting hole (17); A second one-way valve (8) is arranged in the third mounting hole (17) and the fourth mounting hole (18), wherein the fluid outlet of the second one-way valve (8) is connected to the inner cavity of the outer tube (6), and the fluid inlet thereof is located outside the housing (1).

7. The valve delivery device according to any one of claims 1 to 4, characterized in that: The first operating component (2) comprises A threaded tube (23) rotatably arranged on the inner wall of the housing (1), the distal end of the threaded tube (23) being bent into a clearance hole on the housing (1) and serving as the first operating end; A sliding member (22) is threadably engaged in the threaded tube (23); the sliding member (22) is fixedly sleeved on the outer tube (6).

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