Laser ablation probe and laser ablation device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a laser ablation probe and a laser ablation device, and the working end of a light-guide fiber is connected with a laser mediation cap, so that the working end of the light-guide fiber outputs laser to act on the inner wall of the laser mediation cap. The laser ablation probe is matched with the laser ablation host to perform a laser soft tissue ablation operation, the laser ablation host outputs laser to the optical fiber, and the laser mediation cap mediates the laser to perform in-vivo soft tissue ablation treatment, so that the pollution to the optical fiber caused by direct contact between the working end of the optical fiber and in-vivo tissues is avoided; stable transmission of laser power through the light-guide fibers is guaranteed, meanwhile, the ablation range is expanded, tissue carbonization is avoided, accurate, efficient and safe ablation of soft tissue lesions is achieved, the efficiency of laser ablation treatment is improved, meanwhile, the treatment safety is greatly improved, and the treatment cost is reduced. And the risks of tissue overheating and carbonization possibly occurring in the treatment process are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relate to a kind of laser ablation probe and laser ablation device. BACKGROUND

[0002] Laser soft tissue ablation utilizes the photo-thermal effect of laser, when laser is absorbed by soft tissue, light energy is converted into heat energy, resulting in the increase of tissue temperature, and then evaporating or coagulating the tissue, so as to achieve the purpose of cutting or removing tissue. Specifically, the puncture needle is punctured into the lesion in the body under the ultrasound guidance positioning, and then the end of the light guide fiber is pushed into the lesion along the needle hole of the puncture needle, and then the puncture needle is retreated a distance away from the lesion, only the end of the light guide fiber is retained in the lesion, at this time the end of the optical fiber is completely wrapped in the lesion tissue, and the laser reaches the lesion through the light guide fiber to start the ablation treatment of the lesion.

[0003] In clinical practice, laser soft tissue ablation technology still faces many defects. First, the end of the light guide fiber directly contacts the lesion tissue, which is easy to be contaminated, and the contaminated light guide fiber will affect the output of laser power, resulting in the decrease of laser output power. Secondly, the high power density of the laser output through the light guide fiber makes the contact point between the end of the light guide fiber and the soft tissue carbonized due to high local temperature, forming a hard carbonized shell, which not only hinders the penetration of laser into deep tissue, but also may damage the surrounding healthy tissue. Thirdly, the limitation of the size of the inner core of the light guide fiber also reduces the range of ablation, which limits the wide application of the technology. SUMMARY

[0004] The utility model provides a kind of laser ablation probe and laser ablation device to solve the many defects of laser soft tissue ablation technology in prior art, realize the stable power transmission of laser, avoid tissue carbonization, expand the range of ablation.

[0005] The utility model provides a kind of laser ablation probe, including the light guide fiber for transmitting laser, the working end of the light guide fiber is connected with laser mediation cap, the laser mediation cap is covered in the working end of the light guide fiber, to make the laser of the light guide fiber working end export act on the inner wall of the laser mediation cap.

[0006] According to the utility model provides a kind of laser ablation probe, the light guide fiber includes light guide fiber inner core and the light guide fiber outer sleeve wrapped in the outer circumferential surface of the light guide fiber inner core, the laser mediation cap is connected to the light guide fiber outer sleeve end, the light guide fiber inner core working end extends out of the light guide fiber outer sleeve and is located in the laser mediation cap.

[0007] The utility model provides a kind of laser ablation probe, laser mediation cap is provided with beam expander, the beam expander is located the optical fiber working end, the beam expander is parallel with the laser mediation cap bottom end surface and is arranged, to carry out the beam expansion of the laser output of the optical fiber working end, so that the laser after beam expansion acts on the laser mediation cap bottom end surface.

[0008] The utility model provides a kind of laser ablation probe, laser mediation cap is provided with beam splitter, the beam splitter is located the optical fiber working end, the beam splitter is used to carry out the uniform divergence of the laser output of the optical fiber working end, so that the laser after divergence acts on the inner wall of the laser mediation cap.

[0009] The utility model provides a kind of laser ablation probe, the inner wall of laser mediation cap forms diffuse reflection inner wall.

[0010] The utility model provides a kind of laser ablation probe, a plurality of temperature sensors are uniformly distributed on the laser mediation cap, and the temperature sensor is used for monitoring the working temperature of the laser mediation cap.

[0011] The utility model also provides a kind of laser ablation device, including the laser ablation probe of any one of above, further include the laser ablation host computer for generating laser, laser ablation host computer is provided with optical fiber connecting port, the optical fiber is connected to the optical fiber connecting port, to transmit the laser generated by the laser ablation host computer to the optical fiber.

[0012] The utility model provides a kind of laser ablation device, and the laser ablation host computer includes:

[0013] Laser generating mechanism is used for generating ablation laser;

[0014] Control module is electrically connected with the laser generating mechanism, and is used for controlling the power of laser emission of the laser generating mechanism;

[0015] Adjusting module is electrically connected with the control module, and is used for controlling the power of laser emission of the laser generating mechanism by the control module;

[0016] Temperature feedback module is electrically connected with the control module, and is used for monitoring the temperature of the laser mediation cap and feedback to the control module.

[0017] The utility model provides a kind of laser ablation device, and the laser ablation host computer further includes setting module, the setting module is electrically connected with the control module, to limit the working temperature of the laser mediation cap and the working time and emission laser power of the laser generating mechanism.

[0018] According to the present invention, a laser ablation device is provided, wherein the laser ablation host further includes a housing, and the housing is provided with a setting panel, an adjustment panel and a display panel.

[0019] The setting panel is electrically connected to the setting module and is used to set the working temperature of the laser-guided cap and the working time and laser emission power of the laser generating mechanism.

[0020] The adjustment panel is electrically connected to the adjustment module and is used to adjust the power of the laser emitted by the laser generating mechanism.

[0021] The display panel is electrically connected to the control module. The display panel includes a setting display area and a real-time display area. The setting display area is used to display the set temperature of the laser-guided cap, the set working time of the laser generating mechanism, and the set power of the laser emitted by the laser generating mechanism. The real-time display area is used to display the real-time temperature of the laser-guided cap, the real-time working time of the laser generating mechanism, and the real-time power of the laser emitted by the laser generating mechanism.

[0022] This invention provides a laser ablation probe and device. The laser ablation probe, in conjunction with a laser ablation host, performs laser soft tissue ablation surgery. The laser ablation host outputs laser light to an optical fiber, which is guided by a laser-mediated cap for in vivo soft tissue ablation treatment. This avoids direct contact between the working end of the optical fiber and the internal tissue, preventing contamination of the optical fiber by human tissue and ensuring stable transmission of laser power through the optical fiber. The area of ​​the laser-mediated cap can be hundreds of times the cross-sectional area of ​​the optical fiber core, expanding the ablation range and avoiding tissue carbonization. This invention's laser ablation probe, with a laser-mediated cap positioned between the lesion soft tissue and the optical fiber, optimizes the laser ablation treatment process, achieving precise, efficient, and safe ablation of soft tissue lesions. It not only improves the efficacy of laser ablation treatment but also significantly enhances treatment safety, reducing the risk of tissue overheating and carbonization during treatment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an embodiment of the laser ablation probe provided by this utility model.

[0025] Figure 2Is another embodiment structure schematic view of the laser ablation probe provided by the utility model.

[0026] Figure 3 Is another embodiment structure schematic view of the laser ablation probe provided by the utility model.

[0027] Figure 4 Is the working principle block diagram of the laser ablation host provided by the utility model.

[0028] Figure 5 Is the external structure schematic view of the laser ablation host provided by the utility model.

[0029] The drawing mark: 1, optical fiber;11, optical fiber inner core;12, optical fiber outer cover;2, laser mediation cap;3, beam expander;4, beam splitter;5, laser ablation host;51, optical fiber connecting port;52, laser generating mechanism;53, control module;54, adjustment module;55, temperature feedback module;56, setting module;57, shell;571, setting panel;572, adjustment panel;573, display panel. Specific implementation

[0030] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0031] In the description of the embodiment of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown in the drawing, and is only for the convenience of describing the embodiment of the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation structure and operation, therefore, cannot be understood as the limitation of the embodiment of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the utility model, it needs to be explained that, unless there is explicit provision and limitation, the terms "connected", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium.

[0033] In the embodiments of the utility model, unless there is explicit provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through intermediate medium.

[0034] In the description of the embodiments of the utility model, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the embodiments of the utility model.

[0035] The specific structure and working process of the laser ablation probe and the laser ablation device of the utility model are described below. Figures 1 to 5 The specific structure and working process of the laser ablation probe and the laser ablation device of the utility model are described below.

[0036] One embodiment of the utility model provides a kind of laser ablation probe, referring to Figure 1 As shown, the laser ablation probe includes optical fiber 1 for transmitting laser, the working end of optical fiber 1 is connected with laser mediation cap 2, laser mediation cap 2 is coated in the working end of optical fiber 1, to make the laser output by the working end of optical fiber 1 act on the inner wall of laser mediation cap 2.

[0037] It can be understood that the laser ablation probe of the embodiment can be applied to cooperate with a laser ablation main machine to perform laser soft tissue ablation surgery. The laser ablation main machine outputs laser to the optical fiber 1, and the laser is mediated by the laser mediation cap 2 to perform in-vivo soft tissue ablation treatment. The direct contact between the working end of the optical fiber 1 and the in-vivo tissue is avoided, the pollution of the human tissue to the optical fiber 1 is prevented, and the stable transmission of the laser power through the optical fiber 1 is ensured. The area of the laser mediation cap 2 can be hundreds of times of the inner core cross-sectional area of the optical fiber 1, the ablation range is expanded, and the carbonization of the tissue is avoided. The laser ablation probe of the embodiment uses the laser mediation cap 2 between the lesion soft tissue and the optical fiber 1, optimizes the laser ablation treatment process, realizes the accurate, efficient and safe ablation of the soft tissue lesion, improves the efficiency of the laser ablation treatment, and greatly improves the safety of the treatment, and reduces the risk of tissue overheating and carbonization in the treatment process.

[0038] In some embodiments of the laser ablation probe of the utility model, continuing to refer to Figure 1 The optical fiber 1 includes an optical fiber inner core 11 and an optical fiber outer sleeve 12 wrapped around the outer peripheral surface of the optical fiber inner core 11, the laser mediation cap 2 is connected to the end of the optical fiber outer sleeve 12, and the working end of the optical fiber inner core 11 extends out of the optical fiber outer sleeve 12 and is located in the laser mediation cap 2.

[0039] It can be understood that the optical fiber inner core 11 is wrapped with the optical fiber outer sleeve 12, the optical fiber outer sleeve 12 protects the outer layer reflective film of the optical fiber inner core 11 from being scratched by external force and prevents the optical fiber inner core 11 from being broken, the laser mediation cap 2 is additionally installed at the end of the optical fiber outer sleeve 12, the working end of the optical fiber inner core 11 extends out of the optical fiber outer sleeve 12 and is sealed in the laser mediation cap 2, the laser mediation cap 2 prevents the working end of the optical fiber inner core 11 from directly contacting the in-vivo tissue, effectively isolates the direct contact between the optical fiber 1 and the in-vivo tissue, and ensures the stable transmission of the laser power through the optical fiber.

[0040] In some specific examples, the laser-mediated cap 2 is a cylindrical metal cap adapted to receive the laser output from the working end of the optical fiber 1 and conduct the heat energy uniformly on the cylinder. Of course, the structure of the laser-mediated cap 2 is not limited to a cylinder, and can also be a spherical, elliptical, needle-shaped structure, etc., which can be designed, manufactured and installed according to actual needs. The material of the laser-mediated cap 2 is also not limited to metal, and any material that can sense temperature and quickly conduct heat can be used. In this example, the laser-mediated cap 2 is a metal cylinder. It can be understood that the laser energy acts on the laser-mediated cap 2, and the heat energy is uniformly distributed on the laser-mediated cap 2 after the laser heats the metal. The uniform heat energy on the surface of the laser-mediated cap 2 coagulates and ablates the lesion tissue. The surface area of the laser-mediated cap 2 can be hundreds of times the cross-sectional area of the inner core 11 of the optical fiber. The uniform heat energy on the surface of the laser-mediated cap 2 coagulates and ablates the lesion tissue, which expands the ablation range and avoids tissue carbonization. It should be understood that the laser-mediated cap 2 can have multiple sizes, allowing different shapes and sizes of metal caps to be replaced, enhancing the applicability and flexibility of the device, and being suitable for different types and sizes of soft tissue lesions.

[0041] In some embodiments of the laser ablation probe of the present application, as shown in Figure 2 , a beam expander 3 is arranged in the laser-mediated cap 2. The beam expander 3 is located at the working end of the optical fiber 1, and is arranged in parallel with the bottom end face of the laser-mediated cap 2 to expand the laser output from the working end of the optical fiber 1, so that the expanded laser acts on the bottom end face of the laser-mediated cap 2.

[0042] It can be understood that the beam expander 3 is designed to expand the diameter of the parallel input light beam to a larger parallel output light beam. In this embodiment, the laser output from the working end of the optical fiber 1 is expanded to a larger diameter laser beam after passing through the beam expander 3, as shown by the arrow in Figure 2 , which expands the coverage range of the laser beam and reduces the laser energy per unit area, so that the laser energy can cover the bottom end face of the laser-mediated cap 2 in a larger range, and the heat diffusion process on the laser-mediated cap 2 is accelerated.

[0043] In other embodiments of the laser ablation probe of the present application, as shown in Figure 3 , a beam splitter 4 is arranged in the laser-mediated cap 2. The beam splitter 4 is located at the working end of the optical fiber 1, and is used to uniformly diverge the laser output from the working end of the optical fiber 1, so that the diverged laser acts on the inner wall of the laser-mediated cap 2.

[0044] It can be understood that the beam splitter 4 can divide a light beam into two or more light beams. The beam splitter 4 can use a metal film or a dielectric film. In this embodiment, the laser output from the working end of the optical fiber 1 is diverged after passing through the beam splitter 4, as shown by the arrow in Figure 3As shown by the arrow in the figure, the laser is differentiated from the point straight into a divergent multi-beam laser, which uniformly acts on the inner wall of the laser-mediated cap 2 and can also accelerate the heat diffusion of the laser energy on the laser-mediated cap 2.

[0045] After the laser beam provided by the optical fiber 1 acts on the inner wall of the laser-mediated cap 2, the laser-mediated cap 2 needs to absorb the laser beam energy as much as possible to convert it into heat, but part of the laser beam may be reflected back to the optical fiber 1 through the inner wall of the laser-mediated cap 2, causing damage to the optical fiber 1. Based on this process, in some specific examples, the inner wall of the laser-mediated cap 2 is designed as a diffuse reflection inner wall, which is roughened or uses a special process such as frosted glass to form a diffuse reflection on the inner wall of the laser-mediated cap 2. After reflection on the inner wall of the laser-mediated cap 2, the light beam will act on other positions on the inner wall of the laser-mediated cap 2 to the greatest extent, and will not be reflected back to the optical fiber 1, thereby protecting the optical fiber 1 and further enhancing the absorption and conversion effect of the laser-mediated cap 2.

[0046] In some embodiments of the laser ablation probe of the utility model, a plurality of temperature sensors are uniformly distributed on the laser-mediated cap 2, and the temperature sensors are used for monitoring the working temperature of the laser-mediated cap 2. During the laser ablation process, the temperature of the laser-mediated cap 2 is monitored in real time by the temperature sensors on the laser-mediated cap 2, and the monitoring information is transmitted to the laser ablation host for display, so as to guide the doctor to adjust the laser power and avoid tissue carbonization, thereby efficiently realizing the precise ablation of the tissue.

[0047] The utility model also provides a laser ablation device on the other aspect, and in some embodiments, the laser ablation device comprises the laser ablation probe of any one of the above embodiments, and further comprises a laser ablation host 5 for generating laser, and the laser ablation host 5 is provided with an optical fiber connecting port 51, and the optical fiber 1 is connected to the optical fiber connecting port 51 to transmit the laser generated by the laser ablation host 5 to the optical fiber 1.

[0048] The laser ablation device of the embodiment can be applied to laser soft tissue ablation surgery, and the soft tissue lesion is taken as the ablation target, first, the ablation temperature of the soft tissue lesion is determined according to the soft tissue lesion, and the laser ablation host 5 is set; then, under the guidance of an imaging device (such as a CT or an ultrasonic device), a puncture needle is punctured into the lesion site in the body, and then the optical fiber 1 provided with the laser-mediated cap 2 is inserted into the puncture needle hole and enters the lesion site along the puncture needle; the laser ablation host 5 is started to output laser, the laser output by the laser ablation host 5 is transmitted through the optical fiber 1, reaches the laser-mediated cap 2 at the working end of the optical fiber 1, and converts the laser energy into heat energy to act on the laser-mediated cap 2; the laser-mediated cap 2 has good corrosion resistance, biocompatibility, mechanical strength and balanced thermal conductivity, and the heat energy of the laser-mediated cap 2 uniformly distributes on the laser-mediated cap 2 after the laser-mediated cap 2 is heated by the laser; when the laser-mediated cap 2 is heated to the ablation temperature of the soft tissue lesion, the heat energy of the laser-mediated cap 2 performs thermal coagulation ablation on the soft tissue lesion.

[0049] It can be understood that the laser ablation host 5 generates laser, which is transmitted to the optical fiber 1 through the optical fiber connecting port 51, the optical fiber 1 transmits the laser generated by the laser ablation host 5 to act on the laser-mediated cap 2, and the laser-mediated cap 2 installed at the working end of the optical fiber 1 not only uniformly converts the laser light energy into heat energy, but also avoids tissue carbonization, is used for accurately ablation of the soft tissue lesion of the human body, and ensures the safety and effectiveness of the treatment process. Meanwhile, the laser-mediated cap 2 also prevents the direct contact of the optical fiber 1 with the tissue in the patient's body, avoids the pollution of the human tissue to the optical fiber 1, and ensures the stable transmission of the laser power through the optical fiber 1.

[0050] In some embodiments of the laser ablation device of the utility model, the laser ablation host 5 includes laser generating mechanism 52, control module 53, adjusting module 54, temperature feedback module 55 and setting module 56, as shown in Figure 4 The laser generating mechanism 52 is used for generating ablation laser; the control module 53 is electrically connected with the laser generating mechanism 52 and is used for controlling the power of the laser emitted by the laser generating mechanism 52; the adjusting module 54 is electrically connected with the control module 53 and is used for controlling the power of the laser emitted by the laser generating mechanism 52 through the control module 53; the temperature feedback module 55 is electrically connected with the control module 53 and is used for monitoring the temperature of the laser-mediated cap 2 and feeding back to the control module 53; the setting module 56 is electrically connected with the control module 53 to limit the working temperature of the laser-mediated cap 2 and the working time and the emission laser power of the laser generating mechanism 52.

[0051] The laser ablation host 5 in the embodiment generates laser by the laser generating mechanism 52, and transmits the generated laser to the optical fiber 1 through the optical fiber connecting port 51 on the laser ablation host 5. The laser generating process belongs to mature technology, and the laser generating mechanism 52 will not be described in detail. The existing laser generator can be used. It can be understood that the control module 53 in the embodiment can control the laser generating mechanism 52, control the power and time of the laser generating mechanism 52 outputting laser, and realize temperature control of the laser-mediated cap 2. Specifically, the working temperature of the laser-mediated cap 2 and the working time and the emitted laser power of the laser generating mechanism 52 can be set before operation through the setting module 56. Based on the working time and the emitted laser power of the laser generating mechanism 52 set by the setting module 56, the laser generating mechanism 52 is controlled to work, the laser-mediated cap 2 is heated and warmed, the temperature of the laser-mediated cap 2 is monitored in real time through the temperature sensor on the laser-mediated cap 2, and the temperature feedback module 55 is fed back to the control module 53. When the temperature of the laser-mediated cap 2 is too high, the output power of the laser generating mechanism 52 is reduced through the control module 53, so as to reduce the heat obtained by the laser-mediated cap 2, realize the cooling of the laser-mediated cap 2, and realize the accurate control of the temperature of the laser-mediated cap 2. Similarly, during the laser ablation process, the real-time output laser power of the laser generating mechanism 52 can also be adjusted according to actual needs through the adjusting module 54, so as to better match the laser ablation process.

[0052] In other embodiments of the laser ablation device of the utility model, referring to Figure 5 As shown in the figure, the laser ablation host 5 further comprises a shell 57, and the shell 57 is provided with a setting panel 571, an adjusting panel 572 and a display panel 573. The setting panel 571 is electrically connected with the setting module 56 and is used for setting the working temperature of the laser-mediated cap 2 and the working time and the emitted laser power of the laser generating mechanism 52. The adjusting panel 572 is electrically connected with the adjusting module 54 and is used for adjusting the power of the laser emitted by the laser generating mechanism 52. The display panel 573 is electrically connected with the control module 53, and the display panel 573 comprises a setting working display area and a real-time working display area. The setting working display area is used for displaying the set temperature of the laser-mediated cap 2, the set working time of the laser generating mechanism 52 and the set power of the laser emitted by the laser generating mechanism 52. The real-time working display area is used for displaying the real-time temperature of the laser-mediated cap 2, the real-time working time of the laser generating mechanism 52 and the real-time power of the laser emitted by the laser generating mechanism 52.

[0053] It can be understood that the laser ablation device in the example, the laser generating mechanism 52, the control module 53, the adjusting module 54, the temperature feedback module 55 and the setting module 56 are all located in the shell 57, and the working control of the laser ablation host 5 can be realized through the setting panel 571, the adjusting panel 572 and the display panel 573 on the shell 57. Among them, the operation of the setting module 56 can be realized through the setting panel 571, the operation of the adjusting module 54 can be realized through the adjusting panel 572, and the display panel 573 can display the real-time temperature of the laser-mediated cap 2, the laser ablation time and the laser emission power in real time. In combination with the functions of each module in the above-mentioned embodiments, the laser ablation host 5 of the present embodiment can realize preoperative setting (setting panel 571 and setting module 56), intraoperative monitoring (display panel 573) and intraoperative adjustment (adjusting panel 572 and adjusting module 54), and efficiently realize the precise ablation of the tissue.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A laser ablation probe, characterized by, The application relates to a laser ablation probe, which comprises an optical fiber (1) for transmitting laser, and a laser medium cap (2) connected to the working end of the optical fiber (1), wherein the laser medium cap (2) is wrapped on the working end of the optical fiber (1) so that the laser output by the working end of the optical fiber (1) acts on the inner wall of the laser medium cap (2).

2. The laser ablation probe of claim 1, wherein, The optical fiber (1) comprises an optical fiber inner core (11) and an optical fiber outer sheath (12) wrapped on the outer circumferential surface of the optical fiber inner core (11), the laser medium cap (2) is connected to the end of the optical fiber outer sheath (12), and the working end of the optical fiber inner core (11) extends out of the optical fiber outer sheath (12) and is located in the laser medium cap (2).

3. The laser ablation probe of claim 1, wherein, The laser medium cap (2) is provided with a beam expander (3) located at the working end of the optical fiber (1), the beam expander (3) is arranged in parallel with the bottom end surface of the laser medium cap (2), so that the laser output by the working end of the optical fiber (1) is expanded, and the expanded laser acts on the bottom end surface of the laser medium cap (2).

4. The laser ablation probe of claim 1, wherein, The laser medium cap (2) is provided with a beam splitter (4) located at the working end of the optical fiber (1), the beam splitter (4) is used for uniformly diffusing the laser output by the working end of the optical fiber (1), so that the diffused laser acts on the inner wall of the laser medium cap (2).

5. The laser ablation probe of claim 3 or 4, wherein, The inner wall of the laser medium cap (2) is formed as a diffuse reflection inner wall.

6. The laser ablation probe of any one of claims 1 to 4, wherein, A plurality of temperature sensors are uniformly distributed on the laser medium cap (2), and the temperature sensors are used for monitoring the working temperature of the laser medium cap (2).

7. A laser ablation device, characterized by, The application further relates to a laser ablation host (5) for generating laser, and the laser ablation host (5) is provided with an optical fiber connecting port (51), the optical fiber (1) is connected to the optical fiber connecting port (51), so that the laser generated by the laser ablation host (5) is transmitted to the optical fiber (1).

8. The laser ablation device of claim 7, wherein, The laser ablation host (5) comprises: a laser generating mechanism (52) for generating ablation laser; a control module (53) electrically connected to the laser generating mechanism (52) and used for controlling the power of the laser emitted by the laser generating mechanism (52); an adjusting module (54) electrically connected to the control module (53) and used for controlling the power of the laser emitted by the laser generating mechanism (52) through the control module (53); a temperature feedback module (55) electrically connected to the control module (53) and used for monitoring the temperature of the laser medium cap (2) and feeding back to the control module (53).

9. The laser ablation device of claim 8, wherein, The laser ablation host (5) further comprises a setting module (56) electrically connected to the control module (53) so as to limit the working temperature of the laser medium cap (2) and the working time and the power of the laser emitted by the laser generating mechanism (52).

10. The laser ablation device of claim 9, wherein, The laser ablation main machine (5) further comprises a shell (57), which is provided with a setting panel (571), an adjusting panel (572) and a display panel (573); The setting panel (571) is electrically connected with the setting module (56), and is used for setting the working temperature of the laser-mediated cap (2), the working time of the laser generating mechanism (52) and the emitted laser power; The adjusting panel (572) is electrically connected with the adjusting module (54), and is used for adjusting the power of the laser emitted by the laser generating mechanism (52); The display panel (573) is electrically connected with the control module (53), and comprises a setting working display area and a real-time working display area; the setting working display area is used for displaying the setting temperature of the laser-mediated cap (2), the setting working time of the laser generating mechanism (52) and the setting power of the laser emitted by the laser generating mechanism (52); and the real-time working display area is used for displaying the real-time temperature of the laser-mediated cap (2), the real-time working time of the laser generating mechanism (52) and the real-time power of the laser emitted by the laser generating mechanism (52).

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