CN111714252A

CN111714252A - Valve conveying device

Info

Publication number: CN111714252A
Application number: CN202010695752.XA
Authority: CN
Inventors: 李阳; 陈晓; 黄韬; 时楠; 刘冰冰; 王雪雪; 位诗雨
Original assignee: Shanghai Hanling Medical Devices Co ltd
Current assignee: Shanghai Hanling Medical Devices Co ltd; Shanghai Kangdelai Enterprise Development Group Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-09-29

Abstract

The invention provides a valve conveying device, which belongs to the technical field of medical instruments and comprises a conveying device and a control device, wherein the conveying device comprises a conveying device and a control device; an inner tube disposed within the housing; an outer tube; a transfer mechanism, a first operating assembly; the adjustable bending mechanism, the adjustable bending component and a second operation component are connected to the adjustable bending component; the second operating assembly is independent of the first operating assembly and is used for driving the bending-adjustable assembly to bend by a required angle, and the first operating end of the first operating assembly and the second operating end of the second operating assembly are exposed out of the shell; according to the valve delivery device provided by the invention, a doctor can adjust the overall angle of the valve by operating the second operating end, and meanwhile, the first operating component and the second operating component are independently arranged, so that the doctor can respectively or simultaneously adjust the position and the angle of the valve to adapt to more types of patients.

Description

Valve conveying device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a valve conveying device.

Background

The heart valve disease is a common heart disease in China, and the replacement of the artificial heart valve is a main means and the most effective way for treating the heart valve disease. When performing a prosthetic heart valve replacement, which requires an interventional procedure, a valve delivery system is used to deliver a valve stent through the center of the valve to be treated.

For example, a prior art prosthetic heart valve delivery system 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 near end and the far end of the inner tube respectively correspond to the near end and the far end which can extend out of the outer tube. The transfer mechanism is used for driving the outer pipe to slide in a reciprocating manner in the axial direction of the outer pipe relative to the inner pipe, and comprises a knob which is sleeved outside the outer pipe and can be rotationally arranged on the handle shell and a threaded pipe which is fixed at the far end of the knob, a second screw rod is in threaded fit with the internal thread of the threaded pipe, and the second screw rod is sleeved on the outer pipe and is fixedly connected with the outer pipe; the adjustable bending mechanism is used for driving the inner tube and the outer tube to integrally bend relative to the axis of the inner tube and the outer tube by a required angle, so that the valve is attached to the position of the valve of a human body needing treatment. The adjustable bending mechanism comprises an adjustable bent pipe sleeved outside the inner pipe and positioned inside the outer pipe, a first screw fixed on the near end of the knob, and a linkage component, wherein the far end of the linkage component is fixed in a groove on the outer wall of the adjustable bent pipe, the near end of the linkage component extends along the axial direction of the inner pipe and bends radially to extend out of the outer pipe, and the near end of the traction wire is wound on the thread of the linkage component and is matched with the first screw.

According to the valve conveying system with the structure, before a valve replacement operation, the valve is sleeved at the near end of the inner tube in advance and located in the near end of the outer tube, and is in a folded and unreleased state; meanwhile, as the first screw and the linkage part form a second screw structure, the linkage part drives the traction wire to move towards the far end, so as to drive the adjustable bent pipe, the inner pipe and the outer pipe to bend at required angles, and adjust the bending angle of the valve; after the operation is finished, the doctor rotates the knob counterclockwise, the outer tube moves towards the far end relative to the inner tube to reset, meanwhile, the traction wire moves towards the near end, the bending angles of the adjustable bent tube, the inner tube and the outer tube are gradually reduced, the adjustable bent tube, the inner tube and the outer tube are reset to an initial non-bending state, and finally the whole conveying system is pulled out of the body of the patient.

The transfer mechanism and the adjustable bending mechanism are simultaneously controlled by one knob, the transfer mechanism and the adjustable bending mechanism act simultaneously as long as the knob is operated, and the moving distance of the outer tube driven by the transfer mechanism and the bending angle of the valve driven by the adjustable bending mechanism are relatively fixed. However, different patients have different bending angles of the valve during treatment, and after the valve is released and bent by a fixed angle, the valve cannot be attached to the valve of the patient, so that the delivery system can only be suitable for a specific type of patients, and the adjustable bending mechanism cannot be independently operated to adjust the bending angle of the valve according to different patients.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to provide a valve delivery device, which overcomes the problem in the prior art that the adjustable bending mechanism of the valve delivery system cannot independently adjust the bending angle of the valve, so that the delivery system cannot adapt to different patients.

In order to solve the above technical problems, the present invention provides a valve delivery device, comprising;

an inner tube disposed within the housing;

the outer pipe is sleeved outside the inner pipe and is positioned in the shell;

the transfer mechanism is arranged on the shell and comprises a first operating component for driving the outer pipe to slide in a reciprocating manner relative to the inner pipe along the axial direction of the inner pipe;

the adjustable bending mechanism is arranged on the shell and comprises an adjustable bending component which is arranged outside the inner pipe and positioned in the outer pipe, the far end of the adjustable bending component extends along the axial direction of the inner pipe, the near end of the adjustable bending component extends out of the near end of the outer pipe and bends and extends along the radial direction of the inner pipe, and a second operation component which is connected to the near end of the adjustable bending component;

the second operating assembly is independent of the first operating assembly and is used for driving the adjustable bending assembly to bend by a required angle;

the first operating end of the first operating assembly and the second operating end of the second operating assembly are exposed out of the shell.

As a preferable mode, one of the first operating member and the second operating member is disposed on the housing in an axial direction of the inner tube, and the other is disposed on the housing in a direction intersecting the axial direction of the inner tube.

As a preferable technical solution, the housing comprises a body extending along the axial direction of the inner tube and extending parts fixed on the body in an intersecting manner, so that the housing is Y-shaped;

the second operation assembly is arranged on the extension portion, the second operation end extends out of the extension portion, the first operation assembly is arranged on the body, and the first operation end is arranged on the outer wall of the body.

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

the driving piece drives the proximal end of the adjustable bending component to move through rotation.

As a preferred technical solution, the driving member is a first screw rod; the second operating assembly further comprises

The proximal end of the adjustable bending component is fixed on the distal end of the driving component by being fixed on the sliding block.

As a preferred technical solution, the second operating assembly further comprises a first rotating cap fixed on the second operating end;

and/or the second operation assembly further comprises at least one guide member extending along the sliding direction of the sliding block and sliding grooves matched with the guide members one by one, one of the guide member and the sliding groove is arranged on the shell, and the other one of the guide member and the sliding groove is arranged on the sliding block.

As a preferred technical scheme, the adjustable bending assembly comprises

The adjustable bent pipe is sleeved on the inner pipe and is positioned in the outer pipe, and the near end of the adjustable bent pipe extends out of the near end of the outer pipe; and

and the pull wire is made of a bendable material, the distal end of the pull wire is fixed on the adjustable bent pipe, and the proximal end of the pull wire is bent along the radial direction of the inner pipe, penetrates through the part of the adjustable bent pipe, extending out of the proximal end of the outer pipe, and extends outwards and is connected to the second operating assembly.

As a preferred technical solution, the adjustable elbow further comprises a first fixed seat arranged in the housing, and the proximal end of the adjustable elbow is fixed on the first fixed seat in a sealing manner through a first sealing element;

a first mounting hole is formed in the first fixing seat, and a second mounting hole communicated with the first mounting hole is formed in the position, corresponding to the first mounting hole, of the shell; and

and the fluid outlet of the first one-way valve is communicated with the inner cavity of the adjustable elbow pipe, and the fluid inlet of the first one-way valve is positioned outside the shell.

As a preferable technical scheme, the device further comprises a second fixed seat arranged in the shell, and an inner hole of the second fixed seat is connected with the outer wall surface of the outer tube in a sealing and slidable manner through a second sealing element;

the far end of the second fixed seat is connected with the near end of the first fixed seat, and the near end of the adjustable bent pipe penetrates through the second fixed seat to be fixed on the first fixed seat;

the second fixing seat is provided with a third mounting hole, and a fourth mounting hole communicated with the third mounting hole is formed in the position, corresponding to the third mounting hole, of the shell;

and a second one-way valve arranged in the third mounting hole and the fourth mounting hole, wherein a fluid outlet of the second one-way valve is communicated with the inner cavity of the outer tube, and a fluid inlet of the second one-way valve is positioned outside the shell.

As a preferred technical solution, the first operating assembly comprises

The threaded pipe is rotatably arranged on the inner wall of the shell, and the distal end of the threaded pipe is bent into a yielding hole in the shell and serves as the first operating end;

a sliding member screw-fitted in the threaded tube; the sliding piece is fixedly sleeved on the outer pipe.

The technical scheme of the invention has the following advantages:

1. the valve conveying device provided by the invention has the advantages that the outer pipe and the inner pipe are arranged in the shell, the transfer mechanism is connected to the shell, the first operating component of the transfer mechanism can drive the outer pipe to slide relative to the inner pipe, the first operating component is connected with the first operating end, and a doctor operates the first operating end to adjust the position of the valve; still be connected with the adjustable curved subassembly on the casing, the distal end of adjustable curved mechanism extends along the inner tube axial, the proximal end of adjustable curved mechanism stretches out the proximal end of outer tube and extends along the radial bending of inner tube, and connect second operation subassembly, second operation subassembly is connected with the second operation end, the whole angle of the adjustable valve of doctor operation second operation end, simultaneously, because first operation subassembly and second operation subassembly are independent setting, make the doctor adjust the position and the angle of valve respectively or simultaneously, in order to adapt to more types of patient.

2. According to the valve delivery device provided by the invention, 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 one is arranged on the shell along the direction intersecting with the axial direction of the inner tube, so that the first operating assembly and the second operating assembly are separately arranged, a doctor can conveniently adjust the position and the angle of the valve respectively, and the condition that the first operating assembly and the second operating assembly are arranged together to possibly cause misoperation of the doctor is avoided.

3. The invention provides a valve conveying device, wherein a shell comprises a body and an extension part, the extension part and the body are arranged in an intersecting manner, so that the shell is Y-shaped, a first operation component is arranged on the body, a first operation end is arranged on the outer side wall of the body, a second operation component is arranged on the extension part, and the second operation end extends out of the extension part, so that a doctor can not influence a transfer mechanism when operating the first operation end, and can not influence an adjustable bending component when operating the second operation end, so that the doctor can operate the device more accurately.

4. The second operation assembly comprises a driving piece which is rotatably arranged in the shell, the near end of the driving piece is a second operation end, the far end of the driving end is connected with the near end of the adjustable bending assembly, the driving piece can drive the near end of the adjustable bending assembly to move through rotation, when the second operation end is operated, the driving piece is rotated to drive the near end of the adjustable bending assembly to move, and then the far end of the adjustable bending assembly adjusts the angle of the valve.

5. According to the valve conveying device provided by the invention, the driving part is the first screw rod, the sliding block is sleeved on the first screw rod in a matching manner, the near end of the adjustable bending component is fixed on the sliding block, the sliding block is driven to do linear motion along the axial direction of the first screw rod by driving the first screw rod to rotate, the near end of the adjustable bending component is further driven to move, the far end of the adjustable bending component is adjusted to adjust the angle of the valve, the first screw rod is in threaded connection with the sliding block, the threaded connection precision is higher, and the requirement for accurate adjustment of the valve can be met.

6. According to the valve conveying device provided by the invention, the second operating end of the second operating assembly is connected with the first rotating cap, and the first rotating cap is arranged on the outer side of the shell, so that a doctor can conveniently operate the adjustable bending assembly.

7. According to the valve conveying device provided by the invention, the guide piece and the sliding groove are arranged in the sliding direction of the sliding block, one of the guide piece and the sliding groove is arranged on the shell, and the other sliding block is arranged on the sliding block, so that the sliding block cannot deviate in the sliding process, and the sliding block and the first screw rod are prevented from synchronously rotating.

8. According to the valve conveying device provided by the invention, the adjustable bending component also comprises the adjustable bending pipe, the distal end of the pull wire is fixed on the adjustable bending pipe, the pull wire is made of bendable materials, the proximal end of the pull wire is connected with the second operation component, when a doctor operates the second operation component, the proximal end of the pull wire moves, and under the elastic action of the pull wire, the distal end of the pull wire is subjected to angle deviation, so that the angle adjustment of the distal end of the adjustable bending component is realized, and the angle adjustment of the valve is realized.

9. The valve conveying device provided by the invention has the advantages that the first fixing seat is arranged in the shell, the near end of the adjustable bent pipe is fixed on the first fixing seat in a sealing manner, the first one-way valve is arranged on the first fixing seat, the first one-way valve penetrates through the shell and the first fixing seat to be communicated with the adjustable bent pipe, the fluid outlet of the first one-way valve is communicated with the inner cavity of the adjustable bent pipe, and the fluid inlet is positioned outside the shell, so that a doctor can inject physiological saline into the adjustable bent pipe through the first one-way valve, and bubbles are prevented.

10. According to the valve conveying device provided by the invention, the second fixing seat is further arranged in the shell, the near end of the outer tube is connected to the second fixing seat in a sealing mode, the second fixing seat is provided with the second one-way valve, the second one-way valve penetrates through the shell to be connected with the outer tube, the fluid inlet of the second one-way valve is communicated with the inner cavity of the outer tube, and the fluid inlet is positioned outside the shell, so that a doctor can inject physiological saline into the outer tube through the second one-way valve, and bubbles are prevented.

11. The invention provides a valve conveying device, wherein a first operating assembly comprises a threaded pipe which is rotatably arranged on the inner wall of a shell, the far end of the threaded pipe is bent into a yielding hole of the shell to form a first operating end, a sliding part is matched in the threaded pipe, the sliding part is connected with an outer pipe, a second rotating cap is fixed on the first operating end, a doctor rotates the threaded pipe by rotating the second rotating cap, the sliding part is driven to move in the threaded pipe when the threaded pipe rotates, and the sliding part drives the outer pipe to move, so that the position adjustment of a valve is completed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the construction of a valve delivery device of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic connection diagram of the fixing base;

FIG. 4 is a front view of the adjustable bend assembly;

FIG. 5 is a schematic view of a construction of an adjustable bending assembly;

FIG. 6 is a schematic structural view of a transfer mechanism;

fig. 7 is a schematic view of the connection of the check valve to the housing.

Description of reference numerals:

1. a housing; 2. a first operating assembly; 3. a second spin cap; 4. a first spin cap; 5. a second operating assembly; 6. an outer tube; 7. an inner tube; 8. a second one-way valve; 9. a first check valve; 10. a pull wire; 11. a first screw; 12. a slider; 13. a second mounting hole; 14. a first mounting hole; 15. a first fixed seat; 16. a second fixed seat; 17. a third mounting hole; 18. a fourth mounting hole; 19. a chute; 20. a guide member; 21. an adjustable bent pipe; 22. a slider; 23. a threaded pipe.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

The embodiment provides a specific implementation manner of a valve delivery device, as shown in fig. 1, an outer tube 6 and an inner tube 7 are arranged in a housing 1, a transfer mechanism is connected to the housing 1, a first operating assembly 2 of the transfer mechanism can drive the outer tube 6 to slide relative to the inner tube 7, the first operating assembly 2 is connected to a first operating end, the first operating end is connected to a second rotating cap 3, and a doctor operates the second rotating cap 3 to adjust the position of a valve; still be connected with adjustable curved mechanism on the casing 1, adjustable curved mechanism's distal end extends along inner tube 7 axial, adjustable curved mechanism's proximal end stretches out the near-end of outer tube 6 and extends along the radial bending of inner tube 7, adjustable curved mechanism is including adjustable curved subassembly, adjustable curved subassembly is connected with second operating element 5, second operating element 5 is connected with the second operating end, the second operating end is connected with first rotatory cap 4, the whole angle of the adjustable valve of the first rotatory cap 4 of doctor operation, and simultaneously, because first operating element 2 and second operating element 5 are independent setting, make the doctor adjust the position and the angle of valve respectively or simultaneously, in order to adapt to the patient of more types.

Casing 1 includes body and extension, the extension slope sets up on the body, make casing 1 be the Y type, first operation subassembly 2 is established on the body, the rotatory cap of second 3 is arranged on the body lateral wall, second operation subassembly 5 is established on the extension, first rotatory cap 4 stretches out outside the extension, can not exert an influence to transfer mechanism when doctor operates the rotatory cap of second 3, simultaneously, also can not exert an influence to the subassembly that can bend when doctor operates first rotatory cap 4, make this device of operation that the doctor can be more accurate.

As an alternative embodiment, the body and the extension portion of the housing may be coaxially disposed, and may have other shapes as long as the operation ends of the transfer mechanism and the adjustable bending mechanism are not affected by each other.

As shown in fig. 2 and 3, the adjustable bending assembly further includes an adjustable bending tube 21, the adjustable bending tube 21 is sleeved outside the inner tube 7 and inside the outer tube 6, a proximal end of the adjustable bending tube 21 extends out of a proximal end of the outer tube 6, the adjustable bending tube 21 and the outer tube 6 are slidably connected, a distal end of the pull wire 10 is fixed on the adjustable bending tube 21, the pull wire 10 is made of a bendable material, the proximal end of the pull wire 10 is connected with the second operating assembly 5, when the doctor operates the second operating assembly 5, the proximal end of the pull wire 10 moves, and under the elastic action of the pull wire 10, the distal end of the pull wire 10 is angularly offset, so as to adjust the distal end of the adjustable bending assembly, and adjust the valve.

As shown in fig. 4, the second operating assembly 5 includes a rotatable driving member disposed in the housing 1, the driving member is a first screw 11, a sliding block 12 is fittingly sleeved on the first screw 11, a proximal end of the pull wire 10 is fixed on the sliding block 12, the sliding block 12 is made to move linearly along an axial direction of the first screw 11 by driving the first screw 11 to rotate, so as to drive the proximal end of the pull wire 10 to move, a distal end of the pull wire 10 adjusts an angle of the valve, the first screw 11 is in threaded connection with the sliding block 12, the threaded connection precision is high, and accurate adjustment of the valve can be satisfied.

The second operation end of the second operation assembly 5 is connected with a first rotating cap 4, and the first rotating cap 4 is arranged on the outer side of the shell 1, so that a doctor can conveniently operate the adjustable bending assembly.

As shown in fig. 5, guide 20 and slide groove 19 are provided along the sliding direction of slide block 12, guide 20 is provided on housing 1, and slide groove 19 is provided on slide block 12, so that slide block 12 is not shifted during the sliding process, while avoiding synchronous rotation of slide block 12 with first screw 11.

As an alternative embodiment, guide 20 may also be provided on sliding block 12, while runner 19 is provided on housing 1.

As shown in fig. 6, the first operating assembly 2 includes a threaded tube 23 rotatably disposed on the inner wall of the housing 1, a distal end of the threaded tube 23 is bent into the yielding hole of the housing 1 to form a first operating end, the sliding member 22 is fitted in the threaded tube 23, the sliding member 22 is connected to the outer tube 6, the second rotating cap 3 is fixed on the first operating end, the doctor rotates the threaded tube 23 by rotating the second rotating cap 3, the threaded tube 23 drives the sliding member 22 to move in the threaded tube 23 when rotating, and the sliding member 22 drives the outer tube 6 to move, thereby completing the position adjustment of the valve.

As an alternative, the transfer mechanism may also be another mechanism, for example, a gear and rack engagement structure, and the rack is fixedly connected to the outer tube 6, so as to drive the outer tube 6 to slide in the axial direction.

As shown in fig. 7, a first fixing seat 15 is arranged in the housing 1, a first mounting hole 14 is formed in the first fixing seat 15, a second mounting hole 13 is formed in a position, opposite to the first mounting hole 14, on the housing 1, a second mounting hole 13 is formed in a position, opposite to the first mounting hole 14, of the second fixing seat 16, a proximal end of the adjustable elbow 21 is fixed to an inner hole of the first fixing seat 15 in a sealing manner after penetrating through the second fixing seat 16, a first check valve 9 is arranged in the first mounting hole 14 and the second mounting hole 13, the first check valve 9 penetrates through the housing 1 and the first fixing seat 15 to be communicated with the adjustable elbow 21, a fluid outlet of the first check valve 9 is communicated with an inner cavity of the adjustable elbow 21, and a fluid inlet is located outside the housing 1, so that a doctor can.

As shown in fig. 7, a second fixing seat 16 is further disposed in the housing 1, a proximal end of the second fixing seat 16 is fixedly connected to a distal end of the first fixing seat 15, a third mounting hole 17 is disposed on the second fixing seat 16, a fourth mounting hole 18 is disposed at a position on the housing 1 opposite to the third mounting hole 17, a proximal end of the outer tube 6 is hermetically connected to the second fixing seat 16, a second check valve 8 is disposed on the second fixing seat 16, the second check valve 8 is disposed in the third mounting hole 17 and the fourth mounting hole 18, the second check valve 8 penetrates the housing 1 to be connected to the outer tube 6, a fluid inlet of the second check valve 8 is communicated with an inner cavity of the outer tube 6, and the fluid inlet is located outside the housing 1, so that a doctor can inject physiological saline into the outer tube 6 through the second check valve 8, and prevent air bubbles.

When the valve delivery device is used, air or bubbles in the outer tube 6 need to be discharged outside a human body, the second one-way valve 8 is opened, normal saline is injected into the fluid inlet of the second one-way valve 8, the normal saline enters the inner cavity of the outer tube 6 through the fluid outlet, the bubbles in the outer tube 6 are emptied, the second one-way valve 8 is closed after the bubbles are emptied, similarly, the first one-way valve 9 is opened, the normal saline is injected into the fluid inlet of the first one-way valve 9, the normal saline enters the inner cavity of the adjustable bent tube 21 through the fluid outlet, the bubbles in the inner cavity of the adjustable bent tube 21 are emptied, and the first one-way valve 9 is closed after the bubbles are emptied.

The working principle is as follows:

the transfer mechanism and the adjustable bending component are respectively arranged on the body and the extension part of the shell 1, the adjustable bending component and the transfer mechanism are independently arranged, the adjustable bending pipe 21 is sleeved outside the inner pipe 7, the pull wire 10 is fixedly connected in the adjustable bending pipe 21, the other end of the pull wire 10 is fixed on a sliding block 12 of the adjustable bending component, the sliding block 12 is connected on a first screw rod 11 through threads, one end of the first screw rod 11 is connected with a first rotating cap 4, the first rotating cap 4 is rotated to enable the first screw rod 11 to rotate, the sliding block 12 is enabled to do linear motion while the first screw rod 11 rotates, and further the pull wire 10 fixed on the sliding block 12 is driven to move together, the pull wire 10 is bent under the self elastic acting force, the far end of the adjustable bending pipe 21 drives the far end of the inner pipe 7 to rotate for a certain angle, and the; transfer mechanism and outer tube 6 and be connected, be equipped with in the first operating module 2 of transfer mechanism and rotate the screwed pipe 23 of installing on casing 1 inner wall, there is slider 22 through threaded connection in the screwed pipe 23, the near-end of outer tube 6 is fixed on slider 22, the distal end of screwed pipe 23 is bent to the hole of stepping down of casing 1, form first operating end, first operating end is connected with the rotatory cap of second 3, it makes the threaded rod rotate to rotate the rotatory cap of second 3, the threaded rod pivoted drives slider 22 simultaneously and is linear motion, slider 22 drives outer tube 6 and removes, reach the effect of adjusting the valve position. The doctor can not influence the transfer mechanism when operating the second rotary cap 3, and simultaneously, can not influence the adjustable bent assembly when operating the first rotary cap 4, makes this device of operation that the doctor can be more accurate.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A valve delivery device, comprising;

an inner tube (7) provided in the housing (1);

the outer pipe (6) is sleeved outside the inner pipe (7) and is positioned in the shell (1);

the transfer mechanism is arranged on the shell (1) and comprises a first operating assembly (2) for driving the outer pipe (6) to slide in a reciprocating manner relative to the inner pipe (7) along the axial direction of the inner pipe;

the adjustable bending mechanism is arranged on the shell (1) and comprises an adjustable bending component which is arranged outside the inner pipe (7) and positioned in the outer pipe (6), the far end of the adjustable bending component extends along the axial direction of the inner pipe (7), the near end of the adjustable bending component extends out of the near end of the outer pipe (6) and bends and extends along the radial direction of the inner pipe (7), and a second operation component (5) connected to the near end of the adjustable bending component;

the second operating assembly (5) is independent of the first operating assembly (2) and is used for driving the adjustable bending assembly to bend by a required angle;

the first operating end of the first operating component (2) and the second operating end of the second operating component (5) are exposed out of the shell (1).

2. The valve delivery device according to claim 1, wherein one of the first operating assembly (2) and the second operating assembly (5) is arranged on the housing (1) axially along an inner tube (7), and the other is arranged on the housing (1) in a direction intersecting the axial direction of the inner tube (7).

3. The valve delivery device according to claim 2, wherein the housing (1) comprises a body extending axially along the inner tube (7) and extensions fixed to the body in an intersecting manner, so that the housing (1) is Y-shaped;

the second operation assembly (5) is arranged on the extension part, the second operation end extends out of the extension part, the first operation assembly (2) is arranged on the body, and the first operation end is arranged on the outer wall of the body.

4. The valve delivery device according to any one of claims 1 to 3, wherein the second operating assembly (5) comprises a driving member rotatably provided on the housing (1), a proximal end of the driving member being the second operating end, and a proximal end of the adjustable bending assembly being connected to a distal end of the driving member;

5. The valve delivery device of claim 4, wherein the drive is a first screw (11); the second operating assembly (5) further comprising

A sliding block (12) which is sleeved on the first screw rod (11) in a threaded fit manner, and the proximal end of the adjustable bending component is fixed on the distal end of the driving piece by being fixed on the sliding block (12).

6. The valve delivery device according to claim 5, wherein 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 sliding grooves (19) matched with the guide members (20) one by one, wherein one of the guide member (20) and the sliding grooves (19) is arranged on the shell (1), and the other one is arranged on the sliding block (12).

7. The valve delivery device of any of claims 1-6, wherein the adjustable bend assembly comprises

The adjustable bent pipe (21) is sleeved on the inner pipe (7) and is positioned in the outer pipe (6), and the near end of the adjustable bent pipe (21) extends out of the near end of the outer pipe (6); and

and the pull wire (10) is made of a bendable material, the distal end of the pull wire is fixed on the adjustable bent pipe (21), the proximal end of the pull wire is bent along the radial direction of the inner pipe (7), penetrates through the part of the adjustable bent pipe (21) extending out of the proximal end of the outer pipe (6) and extends outwards, and is connected to the second operating assembly (5).

8. The valve delivery device according to claim 7, further comprising a first fixed seat (15) provided in the housing (1), wherein the proximal end of the adjustable elbow (21) is sealingly fixed to the first fixed seat (15) by a first seal;

a first mounting hole (14) is formed in the first fixing seat (15), and a second mounting hole (13) communicated with the first mounting hole (14) is formed in the position, corresponding to the first mounting hole (14), of the shell (1); and

and the first one-way valve (9) is arranged in the first mounting hole (14) and the second mounting hole (13), a fluid outlet of the first one-way valve (9) is communicated with an inner cavity of the adjustable elbow (21), and a fluid inlet of the first one-way valve is positioned outside the shell (1).

9. The valve delivery device according to claim 8, further comprising a second fixed seat (16) arranged in the housing (1), wherein an inner hole of the second fixed seat (16) is connected with the outer wall surface of the outer tube (6) in a sealing and sliding way through a second sealing element;

the far end of the second fixed seat (16) is connected with the near end of the first fixed seat (15), and the near end of the adjustable bent pipe (21) penetrates through the second fixed seat (16) to be fixed on the first fixed seat (15);

the second fixed seat (16) is provided with a third mounting hole (17), and a fourth mounting hole (18) communicated with the third mounting hole (17) is formed in the position, corresponding to the third mounting hole (17), of the shell (1);

and the second one-way valve (8) is arranged in the third mounting hole (17) and the fourth mounting hole (18), a fluid outlet of the second one-way valve (8) is communicated with the inner cavity of the outer pipe (6), and a fluid inlet of the second one-way valve is positioned outside the shell (1).

10. The valve delivery device according to any of claims 1-9, wherein the first operating assembly (2) comprises

The threaded pipe (23) is rotatably arranged on the inner wall of the shell (1), and the distal end of the threaded pipe (23) is bent into a yielding hole in the shell (1) and serves as the first operating end;

a sliding member (22) which is screwed in the threaded pipe (23); the sliding piece (22) is fixedly sleeved on the outer pipe (6).