CN105982730B - A kind of magnetic navigation ablation catheter pusher - Google Patents

Abstract

The present invention relates to the field of medical equipment, and discloses a pushing device for a magnetic navigation ablation catheter, which includes a pushing mechanism and a control mechanism, the pushing mechanism is connected with the control mechanism through a data line, and the magnetic navigation ablation is controlled by the control mechanism The catheter moves on the pushing mechanism, and the control mechanism includes a central processing unit and a control handle, and the control handle is connected with the central processing unit. The invention can realize the automatic push function of the magnetic navigation ablation catheter, and satisfies the characteristics of low cost, simple operation, easy assembly and disassembly, and good texture.

Description

Pushing device for magnetic navigation ablation catheter

technical field

The invention relates to the field of medical devices, in particular to a pushing device for a magnetic navigation ablation catheter.

Background technique

Radiofrequency ablation catheters have been widely used in medical practice, and are mainly used in the treatment of diseases such as atrial fibrillation and arrhythmia. The method of use is to insert the electrophysiological catheter into the heart through the blood vessel through femoral artery or radial artery puncture with the assistance of X-ray machine, and perform point stimulation to map the cardiac electrical signal to determine the type of cardiac lesion, and then perform radiofrequency ablation The catheter finds areas of the heart with abnormal electrical activity for radiofrequency ablation.

At present, this kind of ablation operation is performed manually by experienced doctors. The catheter used in manual operation is relatively hard, and there are different degrees of trauma risks to the human body. The radiofrequency ablation catheter lacks a navigation device, which makes the doctor's operation slow and the operation efficiency is low, and X-rays will also cause great harm to the doctor.

Contents of the invention

(1) Technical problems to be solved

The technical problem to be solved by the present invention is how to realize the automatic push function of the magnetic navigation ablation catheter, and meet the characteristics of low cost, simple operation, easy assembly and disassembly, and good texture.

(2) Technical solution

In order to solve the above technical problems, the present invention provides a push device for magnetic navigation ablation catheter, which includes a push mechanism and a control mechanism, the push mechanism is connected with the control mechanism through a data line, and the magnetic navigation ablation is controlled by the control mechanism The catheter moves on the push mechanism.

Wherein, the control mechanism includes a central processing unit and a control handle, and the control handle is connected with the central processing unit.

Wherein, the push mechanism includes a power box and a push box, the power box is provided with a motor, a first bevel gear and a second bevel gear, the motor is arranged horizontally, and the output shaft of the motor is connected to the first bevel gear gear connection, the big end of the first bevel gear faces the motor, the second bevel gear meshes with the first bevel gear, and the center of the second bevel gear is fixedly provided with a connecting shaft; the pushing The box is provided with a driving wheel and a driven wheel, the upper end of the connecting shaft is connected with the driving wheel, the driven wheel is arranged on one side of the driving wheel, and the magnetic navigation ablation catheter is arranged between the driving wheel and the driving wheel. Between the driven wheels, it is driven to move back and forth by the positive and negative rotation of the driving wheel.

Wherein, the central processing unit is connected to the motor through the data line, and the central processing unit is also connected to the motor through a power line for supplying power to the motor.

Wherein, the power box is provided with a first cover plate, and the first cover plate is provided with a through hole for passing through the installation end of the connecting shaft; The shaft is fixedly connected to the installation cap, the push box is provided with a second cover plate, the push box is arranged on the power box, the installation end of the connecting shaft is inserted into the installation cap, and the connection The rotation of the shaft drives the driving wheel to rotate.

Wherein, the push box is also provided with a moving block, the moving block is provided with an installation groove, the driven wheel is arranged in the installation groove, the two sides of the push box in the length direction are provided with chute, the Both sides of the moving block can move along the chute.

Wherein, the push mechanism also includes an adjustment screw and a spring, a threaded hole is provided on the side of the push box opposite to the moving block, and a mounting hole is provided at a position opposite to the threaded hole on the moving block , the adjusting screw passes through the threaded hole and the mounting hole, the spring is sheathed on the adjusting screw, and the spring is located between the threaded hole and the mounting hole.

Wherein, the cross-section of the mounting end of the connecting shaft is configured as a hexagon, and the mounting cap is configured as a hexagon that matches the mounting end.

Wherein, the control mechanism also includes an installation box and a third cover, the central processing unit is arranged in the installation box, the third cover is arranged on the installation box, the lower end of the control handle Located in the installation box, the screw end of the control handle extends out of the third cover plate.

Wherein, the side of the installation box is provided with a data line connection port and a power line connection port.

(3) Beneficial effects

Compared with the prior art, the present invention has the following advantages:

The present invention provides a pushing device for a magnetic navigation ablation catheter, which includes a pushing mechanism and a control mechanism, the pushing mechanism is connected to the control mechanism through a data line, and the control mechanism controls the magnetic navigation ablation catheter in the pushing The mechanism moves back and forth, so as to realize the automatic push function of the magnetic navigation ablation catheter, so as to meet the functional requirements of the operation process and improve the success rate of the operation to the greatest extent.

Description of drawings

Fig. 1 is a schematic diagram of the connection of the overall structure of a pushing device for a magnetic navigation ablation catheter of the present invention;

Fig. 2 is a structural schematic diagram of a push mechanism in a push device for a magnetic navigation ablation catheter of the present invention;

Fig. 3 is a schematic structural view of the power box in Fig. 2;

Fig. 4 is a schematic structural view of the push box in Fig. 2;

Fig. 5 is a schematic structural diagram of a control mechanism in a pushing device for a magnetic navigation ablation catheter according to the present invention.

In the figure: 100: push mechanism; 200: control mechanism; A: data cable; B: power cable; C: magnetic navigation ablation catheter; 100-10: power box; 100-20: push box; D: installation of connecting shaft End; E: mounting cap; 100-101: first bevel gear; 100-102: second bevel gear; 100-103: motor; 100-104: first cover plate; 100-105: connecting shaft; 100-201 : second cover plate; 100-202: driving wheel; 100-203: driven wheel; 100-204: moving block; 100-205: chute; 100-206: adjusting screw; 100-207: spring; 200-10 : the third cover plate; 200-20: central processing unit; 200-30: installation box; 200-40: control handle.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in Fig. 1, a pushing device for a magnetic navigation ablation catheter C provided by the present invention includes a pushing mechanism 100 and a manipulation mechanism 200, and the pushing mechanism 100 is connected to the manipulation mechanism 200 through a data line A, as shown in FIG. As shown in FIG. 5, the control mechanism 200 includes a central processing unit 200-20 and a control handle 200-40, the control handle 200-40 is connected to the central processing unit 200-20, and the control handle 200-40 is remotely controlled. , the magnetic navigation ablation catheter C is controlled by the manipulation mechanism 200 to move on the push mechanism 100; thereby realizing the automatic pushing of the magnetic navigation ablation catheter C.

As shown in Figures 2-4, the push mechanism 100 includes a power box 100-10 and a push box 100-20, and the power box 100-10 is provided with a motor 100-103, a first bevel gear 100-101 and a second bevel gear 100-101. Two bevel gears 100-102, the motor 100-103 is arranged horizontally, the output shaft of the motor 100-103 is connected with the first bevel gear 100-101, specifically, the first bevel gear 100-101 The central hole is sleeved on the output shaft of the motor 100-103, the big end of the first bevel gear 100-101 faces the motor 100-103, and the second bevel gear 100-102 is connected to the first bevel gear. The bevel gears 100-101 are meshed, and the position of the two bevel gears is adjusted to make it rotate smoothly. The center of the second bevel gear 100-102 is fixedly provided with a connecting shaft 100-105; A driving wheel 100-202 and a driven wheel 100-203 are provided, the upper end of the connecting shaft 100-105 is connected with the driving wheel 100-202, and the driven wheel 100-203 is arranged on the top of the driving wheel 100-202. On one side, the magnetic navigation ablation catheter C is arranged between the driving wheel 100-202 and the driven wheel 100-203, and the forward and reverse rotation of the driving wheel 100-202 drives the magnetic navigation ablation catheter C to move back and forth, realizing push.

Specifically, the central processing unit 200-20 is connected to the motor 100-103 through the data line A, and the central processing unit 200-20 is also connected to the motor 100-103 through the power line B, for Power is supplied to the motors 100-103.

Wherein, the power box 100-10 is provided with a first cover plate 100-104, and the first cover plate 100-104 is provided with a through hole for passing through the installation end D of the connecting shaft 100-105; The bottom of the push box 100-20 is provided with an installation cap E fixedly connected with the central axis of the driving wheel 100-202, and the push box 100-20 is provided with a second cover plate 100-201, and the push box 100-20 is set on the power box 100-10, the mounting end D of the connecting shaft 100-105 is inserted into the mounting cap E, and the two are tightly matched, and the rotation of the connecting shaft 100-105 Drive the driving wheels 100-202 to rotate.

Wherein, the push box 100-20 is also provided with a moving block 100-204, the moving block 100-204 is provided with a mounting groove, the driven wheel 100-203 is arranged in the mounting groove, and the pushing Both sides of the length direction of the box 100-20 are provided with chute 100-205, and the two sides of the moving block 100-204 can move along the chute 100-205, and the moving block 100-204 can be moved to adjust the The degree of tightness between the driven wheel 100-203 and the driving wheel 100-202, the driving wheel 100-202 and the driven wheel 100-203 are covered with silicone rings to increase their pushing friction.

The specific way that the moving block 100-204 moves is: the pushing mechanism 100 also includes an adjustment screw 100-206 and a spring 100-207, and one of the pushing boxes 100-20 opposite to the moving block 100-204 There are threaded holes on the side, and mounting holes are provided at positions opposite to the threaded holes on the moving block 100-204, the adjusting screw 100-206 passes through the threaded holes and the mounting holes, and the spring 100- 207 is sleeved on the adjusting screw 100-206, and the spring 100-207 is located between the threaded hole and the mounting hole, and the pre-tightening force of the spring 100-207 is adjusted by rotating the adjusting screw 100-206 , so that the position of the moving blocks 100-204 can be adjusted, and the distance between the driven wheels 100-203 and the driving wheels 100-202 will change accordingly.

In order to ensure the reliability of the connection, the cross-section of the mounting end D of the connecting shaft 100-105 is preferably set to a hexagon, and can also be set to a polygon of other shapes, and the mounting cap E is set to be opposite to the mounting end. A matching hexagon or other matching shapes, so that when the connecting shaft 100-105 rotates, the installation cap E can rotate together without slipping.

Wherein, the control mechanism 200 also includes an installation box 200-30 and a third cover plate 200-10, the central processing unit 200-20 is arranged in the installation box 200-30, and the third cover plate 200- 10 The cover is set on the installation box 200-30, the lower end of the control handle 200-40 is located in the installation box 200-30, and the screw end of the control handle 200-40 extends out of the third cover The plate 200-10 is used to conveniently rotate the control handle 200-40 to adjust the magnetic navigation ablation catheter C to realize forward and backward push.

In order to facilitate wiring, the side of the installation box 200-30 is provided with a data line A connection port and a power line B connection port.

The pushing device is made of plastic material to achieve the purpose of reducing the influence of metal on the magnetic field and facilitating installation.

It can be seen from the above embodiments that the present invention is simple to operate and easy to assemble and disassemble. By adjusting the position of the control handle, and then adjusting the magnetic navigation ablation catheter C, it can be pushed back and forth to maximize the success rate of the operation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. A pusher for a magnetic navigation ablation catheter, characterized in that it comprises a push mechanism and a manipulation mechanism, the push mechanism is connected to the manipulation mechanism through a data line, and the magnetic navigation ablation catheter is controlled by the manipulation mechanism Move on the push mechanism; the push mechanism includes a power box and a push box, the power box is provided with a motor, a first bevel gear and a second bevel gear, the motor is horizontally arranged, and the output shaft of the motor is connected to the The first bevel gear is connected, the big end of the first bevel gear faces the motor, the second bevel gear meshes with the first bevel gear, and the center of the second bevel gear is fixedly provided with a connecting shaft; The push box is provided with a driving wheel and a driven wheel, the upper end of the connecting shaft is connected to the driving wheel, the driven wheel is set on one side of the driving wheel, and the magnetic navigation ablation catheter is set on the Between the driving wheel and the driven wheel, the forward and reverse rotation of the driving wheel drives it to move back and forth. 2 . The pushing device for magnetic navigation ablation catheter according to claim 1 , wherein the control mechanism comprises a central processing unit and a control handle, and the control handle is connected to the central processing unit. 3 . 3. The pushing device for magnetic navigation ablation catheter according to claim 2, wherein the central processing unit is connected to the motor through the data line, and the central processing unit is also connected to the motor through a power line connection for powering the motor. 4. The pushing device for magnetic navigation ablation catheter according to claim 3, characterized in that, the power box is provided with a first cover plate, and the first cover plate is provided with a mounting plate for passing through the connecting shaft. The through hole at the end; the bottom of the push box is provided with a mounting cap fixedly connected with the central axis of the driving wheel, the push box is provided with a second cover plate, and the push box is arranged on the power box, The mounting end of the connecting shaft is inserted into the mounting cap, and the rotation of the connecting shaft drives the driving wheel to rotate. 5. The pushing device for magnetic navigation ablation catheter according to claim 3, characterized in that, a moving block is also arranged in the pushing box, an installation groove is arranged on the moving block, and the driven wheel is arranged on the In the installation slot, chute is provided on both sides of the push box in the length direction, and both sides of the moving block can move along the chute. 6. The pushing device for magnetic navigation ablation catheter according to claim 5, wherein the pushing mechanism further comprises an adjustment screw and a spring, and a threaded hole is provided on the side opposite to the moving block on the pushing box , a mounting hole is provided at a position opposite to the threaded hole on the moving block, the adjusting screw passes through the threaded hole and the mounting hole, the spring is sleeved on the adjusting screw, and the spring Located between the threaded hole and the mounting hole. 7. The pushing device for magnetic navigation ablation catheter according to claim 6, wherein the cross-section of the installation end of the connecting shaft is set to a hexagonal shape, and the installation cap is set to match the installation end. hexagon. 8. The pushing device for magnetic navigation ablation catheter according to claim 7, wherein the control mechanism further comprises an installation box and a third cover plate, the central processing unit is arranged in the installation box, and the The third cover plate is arranged on the installation box, the lower end of the control handle is located in the installation box, and the screw end of the control handle extends out of the third cover plate. 9 . The pushing device for a magnetic navigation ablation catheter according to claim 8 , wherein a data line connection port and a power line connection port are provided on the side of the installation box.