CN216702727U

CN216702727U - Guide wire cross-valve conveying device

Info

Publication number: CN216702727U
Application number: CN202123203676.5U
Authority: CN
Inventors: 罗健民; 金磊; 魏来; 杨晔; 陈云
Original assignee: Bairen Medical Jiangsu Co ltd
Current assignee: Bairen Medical Jiangsu Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-06-10
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a guide wire cross-valve conveying device, which comprises a handle and a conveying assembly partially penetrating the handle, wherein a three-way joint is arranged on the handle, a first adjusting assembly is arranged inside the handle and comprises a sliding seat slidably arranged in the handle, the conveying assembly comprises an outer pipe and an inner pipe penetrating the outer pipe, one end of the outer pipe is fixedly arranged in the handle, the other end of the outer pipe is far away from the handle, a wire drawing and a fixing ring are embedded in the pipe wall of the outer pipe, the fixing ring is arranged at one end of the outer pipe far away from the handle, one end of the wire drawing is fixedly arranged on the fixing ring, the other end of the wire drawing penetrates through the pipe wall of the outer pipe and extends into the handle to be fixedly connected with the sliding seat, one end of the inner pipe is fixedly arranged inside the three-way joint and is communicated with the three-way joint, the guide wire cross-valve conveying device directly conveys a guide wire to a valve opening and leads to be aligned with the valve opening, thereby simplifying the valve-crossing operation of the guide wire, reducing the operation time and improving the success rate of the operation.

Description

Guide wire cross-valve conveying device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a guide wire cross-valve conveying device.

Background

The prior heart valve diseases mostly adopt a transvascular technology of conveying and implanting a prosthetic heart valve by a soft catheter, the prosthetic heart valve is arranged at the end part of the soft catheter in a curling state, the soft catheter advances to an implantation position through a blood vessel of a patient, the prosthetic heart valve positioned at the top end of the catheter is supported and opened by expanding a balloon, by adopting the treatment mode, aortic valve replacement is completed under the heartbeat without extracorporeal circulation, the treatment efficiency can be effectively improved, and the pain of the patient is relieved, at present, a guide wire is required to be penetrated to build a channel before the prosthetic heart valve is implanted in the heart valve conveying operation, the prosthetic heart valve is conveyed to the valve along the guide wire, and then subsequent operation is carried out, but because the valve is in an opening and closing state and high-speed blood flow passes through the valve to impact the guide wire, the traditional catheter is difficult to convey the guide wire to a valve opening when conveying the guide wire, so that the operation needs to consume a long time for the guide wire transvalvular operation, in severe cases, the guide wire can not cross the valve for a long time, so that the operation fails, and the success rate of the operation is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a guide wire cross-valve delivery device to solve the above existing problems.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a valve conveyor is striden to seal wire, includes that handle and part wear to establish the inside transport assembly of handle, the inside of handle is provided with adjusting part, transport assembly includes the outer tube and wears to establish the inside inner tube of outer tube, the fixed setting in the handle of one end of outer tube, the handle setting is kept away from to the other end of outer tube, the inside wire drawing that is equipped with that inlays of pipe wall of outer tube, the fixed setting in one end of wire drawing the handle was kept away from to the outer tube one end is passed to the other end of wire drawing the pipe wall of outer tube extends to in the handle with adjusting part is connected.

Further, the adjusting component comprises a sliding seat which is slidably arranged in the handle, a containing hole is formed in the sliding seat, and the wire drawing is arranged in the containing hole in a penetrating mode.

Furthermore, one end of the inner tube penetrates through the outer tube, one end of the outer tube, which is far away from the handle, extends to the outside of the outer tube, the other end of the inner tube penetrates through the handle and extends to the outside of the handle, one end of the inner tube, which penetrates through the handle, is connected with an expansion piece, and a guide wire penetrates through the inner part of the inner tube.

Further, the handle includes first support piece, second support piece and lid and establishes first support piece with the last shell of second support piece, the adjusting part rotationally the cover is established on first support piece, the inside of second support piece is provided with the sealing sleeve spare.

Furthermore, the first supporting piece is of a T-shaped tubular structure, and a first cavity is formed in the first supporting piece.

Furthermore, the cylindrical tubular structure of the second support member, the inside of the second support member is provided with a second cavity, one end of the second support member is provided with an accommodating cavity communicated with the second cavity, the second support member is provided with a through pipe communicated with the accommodating cavity, and the through pipe penetrates through the shell and extends to the outside of the handle.

Further, an annular sealing element is arranged between the first supporting element and the second supporting element, gaskets are arranged on two sides of the sealing element, an opening is formed in the sealing element, and the opening is communicated with the first cavity of the first supporting element and the accommodating cavity of the second supporting element respectively.

Furthermore, a hemostatic valve is arranged on the side wall of the shell, a connecting pipe is arranged on the hemostatic valve, and the connecting pipe is connected with the through pipe on the second support piece.

Further, the adjusting component further comprises an adjusting piece, the adjusting piece comprises a rotating section arranged outside the shell and a thread section arranged inside the shell, and the rotating section and the thread section are fixedly connected or integrally formed.

Furthermore, an internal thread is formed in the inner wall of the threaded section, the sliding seat is of an annular structure and can be slidably arranged between the threaded section and the first supporting piece, and an external thread matched with the internal thread in the threaded section is formed in the outer wall of the sliding seat.

The utility model has the beneficial effects that:

the utility model provides a guide wire cross-valve conveying device, a conveying assembly comprises an outer pipe and an inner pipe penetrating through the inner part of the outer pipe, one end of the outer pipe is fixedly arranged in a handle, the other end of the outer pipe is far away from the handle, a wire drawing and a fixing ring are embedded in the pipe wall of the outer pipe, the fixing ring is arranged at one end of the outer pipe far away from the handle, one end of the wire drawing is fixedly arranged on the fixing ring, the other end of the wire drawing penetrates through the pipe wall of the outer pipe and extends into the handle to be fixedly connected with a sliding seat, one end of the inner pipe penetrates through one end of the outer pipe far away from the handle to extend to the outer part of the outer pipe, the other end of the inner pipe is fixedly arranged in a three-way joint and communicated with the three-way joint, the outer pipe can move the inner pipe and a guide wire to be bent after being pulled and bent by the wire drawing through the handle, and directly conveys the guide wire to the valve opening to enable the guide wire to be aligned with the valve opening, thereby simplifying the cross-valve operation of the guide wire and reducing the operation time of an operation, the success rate of the operation is improved.

Drawings

The utility model is further illustrated by the following figures and examples.

FIG. 1 is a schematic perspective view of a guidewire valve-spanning delivery device of the present invention;

FIG. 2 is an exploded view of a handle in the guidewire valve-crossing delivery device of the present invention shown in FIG. 1;

FIG. 3 is a cross-sectional view of a handle in the guidewire valve-crossing delivery device of the present invention shown in FIG. 1;

FIG. 4 is a cross-sectional view of another perspective of the handle of the guidewire valve crossing delivery device of the present invention shown in FIG. 1;

FIG. 5 is a cross-sectional view of a portion of the delivery assembly of the guidewire valve crossing delivery device of the present invention shown in FIG. 1;

fig. 6 is an enlarged view of a point a shown in fig. 5.

In the figure: 100. a guide wire valve crossing delivery device, 1, a handle, 11, a housing, 111, a guide bar, 112, a guide block, 113, a limiting member, 1131, a pin, 1132, a socket, 12, a first adjusting component, 121, a first adjusting member, 1211, a first rotating section, 1212, a first threaded section, 1213, a groove, 122, a slide, 1221, a receiving hole, 13, a second adjusting component, 131, a second adjusting member, 1311, a second rotating section, 1312, a second threaded section, 132, a sliding column, 1321, a cavity, 14, a tee joint, 141, a straight tube, 142, a diagonal tube, 15, a bleed valve, 151, a connecting tube, 16, a first support member, 161, a first cavity, 162, a receiving cavity, 17, a second support member, 171, a second cavity, 18, a sealing member, 181, an opening, 19, a connecting member, 2, a delivery component, 21, an outer tube, 211, a wire drawing wire, 212, a fixing ring, 22, and an inner tube.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

As shown in fig. 1, the guide wire cross-valve delivery device 100 is used for delivering a guide wire into a heart of a human body so as to facilitate the subsequent delivery of a valve stent, and the guide wire cross-valve delivery device 100 comprises a handle 1 and a delivery assembly 2, wherein the delivery assembly 2 is partially arranged inside the handle 1 in a penetrating manner, and the handle 1 can adjust the bending degree of the delivery assembly 2 so as to ensure that one end of the delivery assembly 2 is opposite to the heart valve.

As shown in fig. 1 to 4, the handle 1 includes a first supporting member 16 and a second supporting member 17, a first adjusting member 12 rotatably fitted over the first supporting member 16 and a second adjusting member 13 rotatably fitted over the second supporting member 17, and a housing 11 covering the first adjusting member 12 and the second adjusting member 13.

As shown in fig. 2 to 4, the first supporting member 16 and the second supporting member 17 are both installed inside the handle 1, the first supporting member 16 is substantially in a "T" shaped column tube shape, a first cavity 161 is opened inside the first supporting member 16, and an accommodating cavity 162 communicated with the first cavity 161 is opened at one end of the first supporting member 16; the second supporting member 17 is substantially a T-shaped tubular structure, the second supporting member 17 has a second cavity 171 formed therein, an annular sealing member 18 is disposed between the second supporting member 17 and the first supporting member 16, the sealing member 18 has an opening 181, and the opening 181 is respectively communicated with the accommodating cavity 162 of the first supporting member 16 and the second cavity 171 of the second supporting member 17.

As shown in fig. 2 to 4, the first adjusting assembly 12 includes a first adjusting member 121 and a sliding seat 122, the first adjusting member 121 includes a first rotating section 1211 disposed outside the housing 11 and a first threaded section 1212 disposed inside the housing 11, the first rotating section 1211 is fixedly connected or integrally formed with the first threaded section 1212, the first rotating section 1211 is formed with a groove 1213, an outer wall of the first threaded section 1212 is formed with an external thread, an inner wall of the first threaded section 1212 is formed with an internal thread, a first supporting member 16 is partially disposed in the first threaded section 1212, one end of the first supporting member 16 passes through the first threaded section 1212 and extends into the groove 1213 of the first rotating section 1211, a connecting member 19 is fixedly secured to one end of the first supporting member 16 disposed in the groove 1213, the connecting member 19 is partially disposed in the groove 1213 of the first rotating section 1211, the sliding seat 122 is slidably disposed between the first threaded section 1212 and the first supporting member 16, the sliding base 122 is substantially an annular structure, the sliding base 122 is disposed on the first supporting member 16, an external thread matching with the internal thread of the first threaded section 1212 is disposed on an outer wall of the sliding base 122, and a receiving hole 1221 is disposed on the sliding base 122.

As shown in fig. 2 to 4, the second adjusting assembly 13 includes a second adjusting member 131 and a sliding column 132, the second adjusting member 131 includes a second rotating section 131 disposed outside the housing 11 and a second threaded section 132 disposed inside the housing 11, the second rotating section 131 and the second threaded section 132 are fixedly connected or integrally formed, an inner wall of the second threaded section 132 is provided with an internal thread, the second supporting member 17 is partially disposed inside the second threaded section 132, the sliding column 132 is slidably disposed between the second threaded section 132 and the second supporting member 17, a cavity 1321 is disposed inside the sliding column 132, one end of the sliding column 132 is provided with an external thread matching the internal thread on the second threaded section 132, one end of the sliding column 132 provided with the external thread is disposed inside the second threaded section 132, one end of the sliding column 132 provided with the external thread extends to the outside of the housing 11 through the second threaded section 132 and the second rotating section 131, the three-way joint 14 is arranged at one end of the sliding column 132, which is located outside the housing 11, the three-way joint 14 includes a straight pipe 141 and an inclined pipe 142 obliquely arranged on a side wall of the straight pipe 141, and one end of the straight pipe 141 is inserted into the sliding column 132 and is communicated with the cavity 1321 in the sliding column 132.

As shown in fig. 1 to 4, the two housings 11 are provided, two housings 11 are fastened to form a whole, a guide bar 111 is embedded on a side wall of one housing 11, a guide groove (not shown) is formed on the guide bar 111, the guide groove is located inside the housing 11, a guide block 112 is slidably provided in the guide groove, the guide block 112 is provided between the housing 11 and the first thread segment 1212, a protrusion embedded in a thread groove of an external thread on the first thread segment 1212 is provided on the guide block 112, a plurality of semi-annular limiting members 113 are provided inside each housing 11, the external thread on the first thread segment 1212 is attached to the limiting members 113 in the housing 11, the limiting members 113 in the two housings 11 are consistent in number and are symmetrical one to one, a plug 1131 is provided on the limiting member 113 in one housing 11, a socket 1132 matched with the plug 1131 is provided on the limiting member 113 in the other housing 11, and when the two housings 11 are fastened, the limiting members 113 in the housing 11 are attached to each other two by two to form a complete limiting ring, the side wall of the housing 11 is provided with the blood discharging valve 15, the blood discharging valve 15 is provided with a connecting pipe 151, and the connecting pipe 151 penetrates through the side wall of the housing 11 and the side wall of the first supporting member 16 to extend into the accommodating cavity 162 and be communicated with the accommodating cavity 162.

As shown in fig. 1, 5 and 6, the conveying assembly 2 includes an outer tube 21 and an inner tube 22 slidably inserted into the outer tube 21, one end of the outer tube 21 is fixedly disposed in the first cavity 161 of the first support 16, the other end of the outer tube 21 is disposed away from the handle 1, a wire 211 and a fixing ring 212 are embedded in the tube wall of the outer tube 21, the fixing ring 212 is disposed at one end of the outer tube 21 away from the handle 1, one end of the wire 211 is fixedly disposed on the fixing ring 212, and the other end of the wire 211 penetrates through the tube wall of the outer tube 21, extends into the accommodating hole 1221 of the sliding seat 122, and is fixedly connected to the sliding seat 122.

As shown in fig. 1, 5 and 6, the inner tube 22 is slidably inserted into the outer tube 21, one end of the inner tube 22 extends into the three-way joint 14 at one end of the sliding column 132 through one end of the outer tube 21 disposed in the first cavity 161, the opening 181 of the sealing member 18 and the second cavity 171 of the second support member 17, the inner tube 22 is fixedly disposed inside the three-way joint 14 and communicated with the three-way joint 14, the other end of the inner tube 22 extends to the outside of the outer tube 21 through one end of the outer tube 21 away from the handle 1, and a guide wire is inserted into the inner tube 22.

When the device is used, a guide wire with certain hardness is penetrated into the inner tube 22 through the straight tube 141 of the three-way joint 14, one end of the guide wire penetrates to the outside of one end of the inner tube 22 far away from the handle 1, the guide wire cross-valve conveying device 100 with the guide wire is conveyed into a patient body along a blood vessel of the patient through the conveying assembly 2, when the guide wire cross-valve conveying device is conveyed to a certain position, the second rotating section 131 on the second adjusting piece 131 is rotated, the second rotating section 131 drives the second thread section 132 to rotate, the sliding column 132 slides along the outer wall of the second supporting piece 17 to the direction close to the supporting assembly 3 through the matching of the internal thread and the external thread, the sliding column 132 drives the three-way joint 14 to move when sliding, at the moment, the inner tube 22 on the conveying assembly 2 drives the three-way joint 14 to move to the direction close to the aortic valve of the patient along with the guide wire, the first rotating section 1211 on the first adjusting piece 121 is slowly rotated, and the first rotating section 1211 drives the first thread section 1212 to rotate, the sliding base 122 in the first thread section 1212 slides along the outer wall of the first support 16 in the direction away from the support assembly 3 under the matching of the internal thread and the external thread, when the sliding base 122 slides, the wire drawing 211 in the tube wall of the outer tube 21 is drawn, the wire drawing 211 drives the inner tube 22 to bend through the outer tube 21, so that the guide wire is right opposite to the orifice of the aortic valve, the guide wire is slowly drawn out to cross the valve delivery device 100, and the delivery of the guide wire is completed.

The utility model provides a guide wire cross-valve conveying device 100, a conveying assembly 2 comprises an outer tube 21 and an inner tube 22 penetrating in the outer tube 21, one end of the outer tube 21 is fixedly arranged in a handle 1, the other end of the outer tube 21 is far away from the handle 1, a wiredrawing 211 and a fixing ring 212 are embedded in the tube wall of the outer tube 21, the fixing ring 212 is arranged at one end of the outer tube 21 far away from the handle 1, one end of the wiredrawing 211 is fixedly arranged on the fixing ring 212, the other end of the wiredrawing 211 penetrates through the tube wall of the outer tube 21 and extends into the handle 1 to be fixedly connected with a sliding seat 122, one end of the inner tube 22 penetrates through one end of the outer tube 21 far away from the handle 1 and extends to the outside of the outer tube 21, the other end of the inner tube 22 is fixedly arranged in a three-way joint 14 and communicated with the three-way joint 14, the outer tube 21 can be stably arranged on a valve opening after being pulled and bent through the wiredrawing 211 by adjustment of the handle 1, one end of a guide wire penetrates through the inner tube 22 and extends to the outside of the inner tube 22, the guide wire can rapidly cross the aortic valve orifice along the opposite direction of the blood flow through the bending of the outer tube 21 and the inner tube 22, thereby simplifying the valve crossing operation of the guide wire, reducing the operation time and improving the success rate of the operation.

In light of the foregoing description of preferred embodiments in accordance with the utility model, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A guidewire valve-spanning delivery device, characterized by: comprises a handle and a conveying component partially penetrating the handle, wherein the handle is provided with a three-way joint, a first adjusting component is arranged inside the handle, the first adjusting component comprises a sliding seat which is arranged in the handle in a sliding way, the conveying component comprises an outer tube and an inner tube which is arranged in the outer tube in a penetrating way, one end of the outer tube is fixedly arranged in the handle, the other end of the outer tube is far away from the handle, the inner part of the pipe wall of the outer pipe is embedded with a wire drawing and a fixing ring which is arranged at one end of the outer pipe far away from the handle, one end of the wire drawing is fixedly arranged on the fixing ring, the other end of the wire drawing penetrates through the pipe wall of the outer pipe and extends into the handle to be fixedly connected with the sliding seat, one end of the inner pipe is fixedly arranged inside the three-way joint and is communicated with the three-way joint.

2. The guidewire valve-crossing delivery device of claim 1, wherein: the sliding seat is provided with a containing hole, and the drawn wire is arranged in the containing hole in a penetrating mode.

3. The guidewire valve-crossing delivery device of claim 1, wherein: the inner tube sets up relatively one end in the three way connection passes the outer tube is kept away from the one end of handle extends to the outside of outer tube, wear to be equipped with the seal wire in the inner tube.

4. The guidewire valve-crossing delivery device of claim 1, wherein: the handle still includes second adjusting part, first support piece, second support piece and shell, first adjusting part rotationally overlaps and establishes on the first support piece, second adjusting part rotationally overlaps and establishes on the second support piece, the shell lid is established first adjusting part with on the second adjusting part.

5. The guidewire valve-crossing delivery device of claim 4, wherein: the first supporting piece is of a T-shaped tubular structure, a first cavity is formed in the first supporting piece, and an accommodating cavity communicated with the first cavity is formed in one end, close to the first supporting piece, of the first supporting piece.

6. The guidewire valve-crossing delivery device of claim 5, wherein: the second supporting piece is of a T-shaped tubular structure, and a second cavity is formed in the second supporting piece.

7. The guidewire valve-crossing delivery device of claim 6, wherein: an annular sealing element is arranged between the first supporting element and the second supporting element, gaskets are arranged on two sides of the sealing element, an opening is formed in the sealing element, and the opening is communicated with the first cavity of the first supporting element and the accommodating cavity of the second supporting element respectively.

8. The guidewire valve-crossing delivery device of claim 6, wherein: the lateral wall of shell is provided with the hemostasis valve, be provided with the connecting pipe on the hemostasis valve, the connecting pipe passes the lateral wall of first support piece extends to hold the intracavity and with hold the chamber and be linked together.

9. The guidewire cross-valve delivery device of claim 4, wherein: the first adjusting component further comprises a first adjusting piece, the first adjusting piece comprises a first rotating section arranged outside the shell and a first thread section arranged inside the shell, and the first rotating section is fixedly connected with the first thread section or integrally formed with the first thread section.

10. The guidewire valve-crossing delivery device of claim 9, wherein: the inner wall of the first thread section is provided with an internal thread, the sliding seat is of an annular structure and can be arranged between the first thread section and the first supporting piece in a sliding mode, and the outer wall of the sliding seat is provided with an external thread matched with the internal thread on the first thread section.