CN219422945U

CN219422945U - Ablation system capable of dynamically detecting ablation process

Info

Publication number: CN219422945U
Application number: CN202222092231.2U
Authority: CN
Inventors: 刘永安; 陈冰; 谢荭; 罗隆斌
Original assignee: Suzhou Xinxian Medical Technology Co ltd
Current assignee: Suzhou Xinxian Medical Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-07-28
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses an ablation system capable of dynamically detecting an ablation process, which comprises a catheter of a PFA (pulse-width modulation) ablation instrument, an abutting system and a control system, wherein the abutting system is arranged outside the catheter and comprises a pressure sensor arranged on the outer wall of the catheter and used for collecting external pressure data, an optical fiber is connected to the outside of the pressure sensor and connected with an external signal processing module along the shaft of the catheter, and the control system comprises a controller of the PFA ablation instrument and is used for controlling the ablation catheter to output pacing signals and pulse signals. The system can monitor various signals of an ablated part, such as an attaching signal, an impedance signal and a power signal, and display the signals in a screen of an upper computer, and when the signals are not in a safety range, the system can automatically stop the operation of the ablation equipment, so that the safety of ablation is ensured.

Description

Ablation system capable of dynamically detecting ablation process

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an ablation system capable of dynamically detecting an ablation process.

Background

PFA (Pulsed Field Ablation) is a novel ablation mode for cell death based on an irreversible electroporation mechanism, and has the advantages of tissue specificity, nonthermal ablation and the like, so that the novel ablation mode is applied to atrial fibrillation ablation.

The pulse energy is passed through a pulse ablation catheter of 90cm/110cm length, through the femoral vein puncture and into the heart chamber. After the doctor reaches the target position by operating the pulse ablation catheter, pulse energy is released to ablate the target tissue, so that specific myocardial cells are apoptotic, and ectopic (electric impulse; electric signal) conduction is blocked.

The conventional PFA ablation device cannot feed back various signals acquired by the catheter in the heart chamber in real time, so that the position of the ablation catheter cannot be effectively judged, whether ablation is effective cannot be judged, and when a fault occurs, the position of the fault cannot be rapidly identified, and potential safety hazards are caused to operations.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an ablation system capable of dynamically detecting an ablation process, which comprises a catheter of a PFA (pulse wave modulation) ablation instrument;

the leaning system is arranged outside the catheter and comprises a pressure sensor arranged on the outer wall of the catheter and used for acquiring external pressure data;

the outside of the pressure sensor is connected with an optical fiber, and the optical fiber is connected with an external signal processing module along the shaft of the catheter;

the control system comprises a controller of the PFA ablation instrument and is used for controlling the ablation catheter to output pacing signals and pulse signals.

As further description of the technical scheme, the intelligent cloud platform further comprises an upper computer, wherein the upper computer is connected with the control system, and the upper computer is connected with an external cloud platform.

As a further description of the above aspects, the catheter includes an ablation catheter and a mapping catheter.

As a further description of the above technical solution, a plurality of pressure sensors are disposed at the position where the ablation catheter contacts with the heart chamber tissue, and the pressure sensors are photo-sensitive pressure sensors.

As a further description of the above technical solution, the interior of the pressure sensor includes an FP cavity, and the optical fiber is disposed inside the FP cavity.

As a further description of the above technical solution, the shape of the ablation catheter includes any one of a ring shape, a petal shape, a divergent shape, or a balloon mesh shape.

As a further description of the above technical solution, a plurality of electrodes are disposed outside the mapping catheter, for collecting impedance, power, voltage and current signals in the heart chamber.

As a further description of the above technical solution, the impedance signal, the power signal, the voltage signal and the current signal detected by the mapping catheter are returned to the control system.

The utility model has the following beneficial effects:

1. according to the utility model, various signals of an ablated part, such as an abutting signal, an impedance signal and a power signal, can be monitored in the ablation process, and are displayed on a screen of an upper computer, and when the signals are not in a safety range, the operation of the ablation equipment can be automatically stopped, so that the ablation safety is ensured.

Drawings

FIG. 1 is a schematic illustration of an ablation system in accordance with the present utility model;

FIG. 2 is a schematic diagram of the photo pressure sensor of the present utility model without pressure;

FIG. 3 is a schematic diagram of the photo pressure sensor of the present utility model when pressed;

fig. 4 is a functional block diagram of an ablation system in accordance with the present utility model.

Legend description:

1. a conduit; 101. an ablation catheter; 102. mapping the catheter; 2. a pressure sensor; 3. an optical fiber; 4. a shaft; 5. a signal processing module; 6. a controller; 7. an upper computer; 8. and (5) a cloud platform.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: an ablation system capable of dynamically detecting an ablation process comprises a catheter 1, wherein the catheter 1 comprises a mapping catheter 102 with the front end extending out, and an ablation catheter 101 at the head end of the catheter 1, the ablation catheter 101 can be in a plurality of preset shapes, including petal shape, ring shape (not shown in the figure), divergent shape (not shown in the figure) and net shape (not shown in the figure), a pressure sensor 2 is arranged at the contact part of the ablation catheter 101 and heart cavity tissue, the specific pressure sensor 2 is a light pressure sensor, the light pressure sensor is connected with an optical fiber 3, meanwhile, the light pressure sensor is electrically connected with a signal processing module 5 in a controller 6, when the light pressure sensor is extruded, an FP cavity in the sensor is deformed, a light interference pattern reflected by the optical fiber 2 is changed, and the signals of impedance, power, voltage and current in the heart chamber can be detected through the mapping catheter 102 and displayed in the screen of the upper computer 7, and the operations are all that the controller in the control system starts the PFA ablation device to enable the pacing signal emitted by the ablation catheter 101 and the monitoring loop after the pulse signal.

Referring to fig. 4, after the impedance signal, the power signal and the signal of the leaning signal monitored by the mapping catheter 102 are fed back to the signal processing module 5 in the controller 6, according to different leaning conditions, the upper computer 7 provides intelligent program to issue pulse ablation, an operator can confirm to issue or set manual pulse ablation program to issue instructions to the control system, the signal processing module 5 can compare the fed back signal with a preset safety threshold in the signal processing module 5, when the fed back signal is within the safety threshold range, the whole system is not fed back, and when the fed back signal is not within the preset safety threshold range, the signal processing module 5 feeds back to the controller 6 through a suspended signal, so that the whole PFA ablation device stops working, and transmits related error codes to the upper computer 7, and data in the upper computer 7 can also be transmitted to the cloud platform 8, so that remote operation can be performed through the cloud platform 8.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An ablation system capable of dynamically detecting an ablation procedure, comprising: a catheter comprising a PFA ablator;

the control system comprises a controller of the PFA ablation instrument and is used for controlling the catheter to output pacing signals and pulse signals;

the intelligent cloud platform further comprises an upper computer, wherein the upper computer is connected with the control system, and the upper computer is connected with an external cloud platform.

2. The ablation system of claim 1, wherein:

the catheter includes an ablation catheter and a mapping catheter.

3. The ablation system of claim 2, wherein:

the ablation catheter is provided with a plurality of pressure sensors at the positions contacted with heart cavity tissues, and the pressure sensors are light-sensitive pressure sensors.

4. The ablation system of claim 1, wherein:

the pressure sensor comprises an FP cavity inside, and the optical fiber is arranged inside the FP cavity.

5. The ablation system of claim 2, wherein:

the shape of the ablation catheter includes any of a ring shape or a balloon mesh shape.

6. The ablation system of claim 2, wherein:

the outside of mapping pipe is provided with a plurality of electrodes for gather impedance, power, voltage and current signal in the heart chamber.

7. The ablation system of claim 2, wherein:

the impedance signal, the power signal, the voltage signal and the current signal detected by the mapping catheter are transmitted back to the control system.