Laser ablation device for minimally invasive tumor treatment

Abstract

The invention discloses a laser ablation device for minimally invasive tumor treatment. The laser ablation device comprises an ablation assembly. The ablation assembly comprises a laser optical fiber, an optical fiber tube and a laser needle arranged at one end of the optical fiber tube, the optical fiber tube is sleeved with an outer sleeve connected with the laser needle, the end, away from the laser needle, of the outer sleeve is connected with a one-way tee joint, and one input end of the one-way tee joint is provided with an injection tube communicated with the injection channel. When the laser ablation device is used, the optical fiber tube is connected with the laser generator, then the laser generator is started for laser ablation, and the temperature change of the ablation range is monitored through the temperature sensor module in the ablation process; when the temperature exceeds the preset temperature, normal saline can be continuously injected, so that the temperature of the operation area is controllable; the tumor thermal ablation operation can be ensured in a short time, the complications and the bleeding amount of the operation are greatly reduced, and the high practical value is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser ablation, and in particular to a laser ablation device for minimally invasive treatment of tumors. Background Art

[0002] Laser ablation of tumors is a technique that selectively ablates diseased tissue by utilizing the energy released by lasers, based on the thermal sensitivity of tumor tissue. To ensure that healthy tissue surrounding the tumor is not damaged and to improve the safety of laser ablation surgery, real-time temperature monitoring of the patient's tumor location during the ablation process is crucial. Previous laser ablation procedures required inserting additional temperature sensors near the ablation needle. This not only increased the size of the patient's external wound, but also limited the ability to measure the temperature of the ablation needle within the body by increasing the number of temperature sensors.

[0003] Therefore, developing a fiber optic ablation needle that can simultaneously achieve laser ablation and temperature detection has certain practical significance for reducing surgical trauma to patients and improving surgical safety and efficiency. Summary of the Invention

[0004] In response to the defects in the existing technology, the purpose of the present invention is to provide a laser ablation device for minimally invasive treatment of tumors, which has the advantages of uniform ablation, minimally invasive, safe and controllable, and can greatly reduce surgical complications and bleeding.

[0005] The technical solution adopted by the present invention is: a laser ablation device for minimally invasive treatment of tumors, including an ablation component; the ablation component includes a laser fiber, an optical fiber tube and a laser needle arranged at one end of the optical fiber tube, the laser fiber passes through the optical fiber tube and is connected to the laser needle, the optical fiber tube is covered with an outer sleeve connected to the laser needle, and an injection channel is formed between the outer sleeve and the optical fiber tube; the end of the outer sleeve away from the laser needle is connected to a one-way tee, one input end of the one-way tee is provided with an injection tube connected to the injection channel, and the other input end is provided with an insertion port for inserting the laser fiber into the optical fiber tube; a temperature sensor module is also provided in the laser needle, and the temperature sensor module is connected to a monitoring connector through a monitoring line.

[0006] In this technical solution, the ablation device positions the laser needle puncture at the patient's tumor site under ultrasound or CT guidance before surgery, injects physiological saline into the injection channel through the injection tube, uses the physiological saline to fill the tissue gap, connects the optical fiber tube to the laser generator, and then turns on the laser generator for laser ablation. During the ablation process, the temperature change of the ablation range is monitored by the temperature sensor module; when the temperature exceeds the preset temperature, physiological saline can be continuously injected to make the temperature of the surgical area controllable; ensure that the tumor can be thermally ablated in a short time, greatly reducing surgical complications and bleeding.

[0007] Preferably, a pipeline bin is provided between the outer sleeve and the one-way tee.

[0008] Preferably, the pipeline bin is connected to a wire pipe, and the monitoring line passes through the wire pipe and is connected to the monitoring connector.

[0009] Preferably, the output end of the one-way tee is connected to the pipeline bin via a Luer connector.

[0010] Preferably, the output end of the pipeline bin is provided with a fixed joint for fixing the outer sleeve.

[0011] Preferably, an injection tube is provided between the outer sleeve and the laser needle head, and an injection hole communicating with the injection channel is provided on the periphery of the injection tube.

[0012] Preferably, the perfusion tube is connected to a connecting tube that is plugged into and adapted to the outer sleeve.

[0013] The beneficial effects of the present invention are as follows: the ablation device provided by the present invention positions the laser needle puncture at the patient's tumor site under ultrasound or CT guidance before surgery, injects physiological saline into the injection channel through the injection tube, uses the physiological saline to fill the tissue gap, connects the optical fiber tube to the laser generator, and then turns on the laser generator for laser ablation. During the ablation process, the temperature change of the ablation range is monitored by the temperature sensor module; when the temperature exceeds the predetermined temperature, physiological saline can be continuously injected to make the temperature of the surgical area controllable; ensure that the tumor can be thermally ablated in a short time, greatly reduce the complications and bleeding of the operation, and have high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is a stereoscopic view of a laser ablation device for minimally invasive tumor treatment provided in an embodiment of the present invention.

[0016] Figure 2 Schematic diagram of the laser needle assembly of the laser ablation device for minimally invasive tumor treatment provided in an embodiment of the present invention Figure 1 .

[0017] Figure 3 Schematic diagram of the laser needle assembly of the laser ablation device for minimally invasive tumor treatment provided in an embodiment of the present invention Figure 2 .

[0018] Figure numerals: laser optical fiber 100, optical fiber tube 200, laser needle 300, outer sleeve 400, one-way T-joint 500, injection tube 600, insertion port 700, temperature sensor module 800, monitoring connector 900, pipeline bin 1000, Luer connector 1100, fixed connector 1200, perfusion tube 1300, perfusion hole 1310, connecting tube 1400. DETAILED DESCRIPTION

[0019] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0021] like Figures 1 to 3 As shown, a specific embodiment of the present invention provides a laser ablation device for minimally invasive treatment of tumors. The device has the advantages of uniform ablation, minimally invasive safety and controllability when used in surgery, and can also greatly reduce surgical complications and bleeding. It specifically includes an ablation component; the ablation component includes a laser fiber 100, an optical fiber tube 200 and a laser needle 300 provided at one end of the optical fiber tube 200, the laser fiber 100 passes through the optical fiber tube 200 and is connected to the laser needle 300, and the optical fiber tube 200 is covered with a An outer sleeve 400 is provided, and an injection channel is formed between the outer sleeve 400 and the optical fiber tube 200; the end of the outer sleeve 400 away from the laser needle head 300 is connected to a one-way tee 500, one input end of the one-way tee 500 is provided with an injection tube 600 connected to the injection channel, and the other input end is provided with an insertion port 700 for inserting the laser optical fiber 100 into the optical fiber tube 200; a temperature sensor module 800 is also provided in the laser needle head 300, and the temperature sensor module 800 is connected to a monitoring connector 900 through a monitoring line.

[0022] like Figures 1 to 3As shown, through the above settings, when in use, the device is connected to the laser generator through the laser optical fiber 100, and there is also an injection channel between the optical fiber tube 200 and the outer sleeve 400, and physiological saline can be injected into the surgical area through the injection tube 600; before the operation, the ablation device punctures and positions the laser needle 300 at the patient's tumor site under the guidance of ultrasound or CT, and injects physiological saline into the injection channel through the injection tube 600, and uses physiological saline to fill the tissue gap. After the optical fiber tube 200 is connected to the laser generator, the laser generator is turned on for laser ablation, and the temperature change of the ablation range is monitored during the ablation process through the temperature sensor module 800; when the temperature exceeds the predetermined temperature, physiological saline can be continuously injected to make the temperature of the surgical area controllable; ensure that the tumor can be thermally ablated in a short time, greatly reducing surgical complications and bleeding; the temperature sensor module 800 in this embodiment adopts a thermocouple structure.

[0023] As previously mentioned, the laser needle 300 houses a temperature sensor module 800 for monitoring temperature. This module requires connection to a monitoring circuit. In this embodiment, a pipeline compartment 1000 is installed between the outer sleeve 400 and the one-way tee 500. This compartment is connected to a wired conduit, through which the monitoring circuit passes and connects to the monitoring connector 900. This allows the compartment 1000 to house the monitoring circuit, as well as structures such as the optical fiber tube 200. Furthermore, the output end of the one-way tee 500 connects to the compartment 1000 via a Luer connector 1100. The compartment 1000 forms a detachable connection with the one-way tee 500, facilitating assembly during use.

[0024] like Figures 1 to 3 As shown, since the output end of the pipeline bin 1000 needs to be connected to the outer sleeve 400, this embodiment provides a fixed joint 1200 for fixing the outer sleeve 400 at the output end of the pipeline bin 1000.

[0025] like Figures 1 to 3 As shown, to ensure that saline solution can be accurately delivered to the surgical area, this embodiment further includes an irrigation tube 1300 between the outer sleeve 400 and the laser needle 300. The outer periphery of the injection tube 600 is provided with an irrigation hole 1310 that communicates with the injection channel. The irrigation tube 1300 is also connected to a connecting tube 1400 that plugs into the outer sleeve 400. This not only achieves irrigation but also stably connects the various structural sections.

[0026] In practical applications, this device is used to precisely thermally ablate tiny tumors (≤2cm) in a patient's body, such as lung nodules. Its significant advantages are rapidity (≤60s), uniformity (spherical shape), and minimal invasiveness (fine needle aspiration). Furthermore, the temperature ensures that the operation is safer and more controllable. These advantages can greatly reduce surgical complications and bleeding, allowing many patients who cannot tolerate prolonged surgery or cannot be exposed to CT radiation for a long time to undergo minimally invasive surgery.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A laser ablation device for minimally invasive tumor treatment, characterized in that: including an ablation component; The ablation assembly comprises a laser optical fiber (100), an optical fiber tube (200), and a laser needle (300) disposed at one end of the optical fiber tube (200); the laser optical fiber (100) passes through the optical fiber tube (200) and is connected to the laser needle (300); an outer sleeve (400) connected to the laser needle (300) is sleeved on the optical fiber tube (200); an injection channel is formed between the outer sleeve (400) and the optical fiber tube (200); One end of the outer sleeve (400) away from the laser needle (300) is connected to a one-way tee (500); one input end of the one-way tee (500) is provided with an injection tube (600) connected to the injection channel, and the other input end is provided with an insertion port (700) for inserting the laser optical fiber (100) into the optical fiber tube (200); A temperature sensor module (800) is also provided in the laser needle head (300), and the temperature sensor module (800) is connected to a monitoring connector (900) via a monitoring line.

2. The laser ablation device for minimally invasive tumor treatment according to claim 1, characterized in that: A pipeline bin (1000) is provided between the outer sleeve (400) and the one-way tee (500).

3. The laser ablation device for minimally invasive tumor treatment according to claim 2, characterized in that: The pipeline bin (1000) is connected to a wired pipe, and the monitoring line passes through the wire pipe and is connected to the monitoring connector (900).

4. The laser ablation device for minimally invasive tumor treatment according to claim 2, characterized in that: The output end of the one-way three-way joint (500) is connected to the pipeline bin (1000) via a Luer connector (1100).

5. The laser ablation device for minimally invasive tumor treatment according to claim 2, characterized in that: The output end of the pipeline bin (1000) is provided with a fixed joint (1200) for fixing the outer sleeve (400).

6. The laser ablation device for minimally invasive tumor treatment according to claim 1, characterized in that: An infusion tube (1300) is provided between the outer sleeve (400) and the laser needle head (300), and an infusion hole (1310) communicating with the injection channel is provided on the outer periphery of the injection tube (600).

7. The laser ablation device for minimally invasive tumor treatment according to claim 1, characterized in that: The perfusion tube (1300) is connected to a connecting tube (1400) that is plugged and adapted to the outer sleeve (400).

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