Treatment tool for laser treatment device and laser treatment device

Abstract

The invention provides a treatment tool for laser treatment equipment and the laser treatment equipment, and the treatment tool comprises a housing which is internally provided with an endoscope channel; the puncture guiding device is located in the shell, an optical fiber channel is formed in the puncture guiding device, a guiding block is arranged at the far end of the puncture guiding device, and the guiding block is provided with a puncture guiding channel which is communicated with the optical fiber channel and forms an opening in the side face of the guiding block; the optical fiber assembly is suitable for extending into the optical fiber channel and extending out of the opening through the puncture guide channel, and the optical fiber assembly comprises a catheter and an optical fiber located in the catheter; and the endoscope is arranged in the endoscope channel.

Description

Technical Field

[0001] The present invention mainly relates to the field of laser devices, and in particular to a treatment tool for laser treatment equipment and laser treatment equipment. Background Art

[0002] With the continuous advancement of laser technology and medical technology, optical fibers are increasingly being incorporated into medical systems. Laser therapy using fiber-optic light guides can deliver light energy into the body to perform therapeutic tasks such as vaporization, cutting, and hemostasis. In recent years, it has also been discovered that laser irradiation can coagulate prostate tissue to alleviate benign prostatic hyperplasia (BPH).

[0003] When a treatment tool enters the human body for laser treatment, it is often necessary to position the light as close to the treatment site as possible. However, the complex structure of tissues or organs in the human body makes this difficult to achieve, especially when the treatment site is not on the surface of the tissue or organ. For example, the currently commonly used laser ablation surgery for BPH is guided by ultrasound or radiation, and the fiber optic head is brought to the effective position through perineal puncture. However, this solution requires high interventional skills from the operator, is not convenient for surgeons to use and popularize, and causes wounds on the skin surface. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a treatment tool and laser treatment equipment that can puncture through a natural cavity and emit laser light from the side.

[0005] In order to solve the above technical problems, the present invention provides a treatment tool for laser treatment equipment, comprising: a shell, wherein the shell has an endoscope channel; a puncture guide located in the shell, wherein the puncture guide has an optical fiber channel, and the distal end of the puncture guide has a guide block, wherein the guide block has a puncture guide channel that is connected to the optical fiber channel and forms an opening on the side of the guide block; an optical fiber assembly, adapted to extend into the optical fiber channel and extend from the opening through the puncture guide channel, the optical fiber assembly comprising a catheter and an optical fiber located in the catheter; and an endoscope, disposed in the endoscope channel.

[0006] In one embodiment of the present invention, the distal end of the optical fiber is tapered.

[0007] In one embodiment of the present invention, a gap is defined between the optical fiber assembly and the optical fiber channel to form a cooling liquid injection channel.

[0008] In one embodiment of the present invention, the treatment tool further includes an outer sheath tube that wraps around the outer shell and forms a coolant reflux channel with the outer shell. The distal end of the outer sheath tube has a plurality of reflux holes that communicate with the coolant reflux channel.

[0009] In one embodiment of the present invention, the treatment tool further includes a sheath handle connected to the proximal end of the outer sheath tube, the proximal end of the outer sheath tube has an opening communicating with the coolant return channel, and the sheath handle has a water return port communicating with the opening.

[0010] In one embodiment of the present invention, the treatment tool further includes an optical fiber movement control assembly connected to the housing via a connector. The optical fiber movement control assembly allows the optical fiber assembly to pass through and is used to control the axial movement of the optical fiber assembly to control the length of the distal end of the optical fiber passing through the opening.

[0011] In one embodiment of the present invention, a gap is provided between the optical fiber assembly and the optical fiber channel to form a coolant injection channel. The connector is a three-way Luer connector with a water inlet, and the water inlet communicates with the coolant injection channel through the connector cavity.

[0012] In one embodiment of the present invention, the optical fiber movement control assembly includes: a shell, the optical fiber assembly passes through the shell axially; a sliding handle, which is slidably provided on the outer periphery of the shell and has an axial sleeve passing through the shell; a locking core shaft, which is provided in the axial sleeve and is suitable for locking or loosening the optical fiber assembly from a circumferential direction; a movable locking button, which is provided on the locking core shaft and locks or loosens the locking core shaft when operated; and a tail end locking member, which is provided at the proximal end of the shell, the optical fiber assembly passes through the tail end locking member, and locks or loosens the optical fiber assembly from a circumferential direction when operated; wherein when the sliding handle is operated, it drives the locking core shaft and the movable locking button to move together.

[0013] In one embodiment of the present invention, the optical fiber movement control assembly further includes a scale provided on the housing, and a scale reading portion located on the sliding handle.

[0014] In one embodiment of the present invention, the optical fiber movement control assembly includes: a shell, through which the optical fiber assembly passes axially; a sliding handle, which is slidably provided on the outer periphery of the shell and has an axial sleeve passing through the shell; a locking core shaft, which is provided in the axial sleeve and is suitable for locking or loosening the optical fiber assembly from a circumferential direction; a sliding plate, which is connected to the end of the locking core shaft; a sliding driver, which is suitable for pushing the sliding plate to slide axially along the optical fiber assembly to drive the locking core shaft and the sliding handle to slide; a first locking driver, which is suitable for pushing the sliding plate to move radially along the optical fiber assembly to drive the locking core shaft to lock or loosen the optical fiber assembly from a circumferential direction; a tail end locking member, which is provided at the proximal end of the shell, through which the optical fiber assembly passes; and a second locking driver, which is connected to the tail end locking member and is suitable for driving the tail end locking member to lock or loosen the optical fiber assembly from a circumferential direction.

[0015] In one embodiment of the present invention, the optical fiber movement control assembly further includes a travel sensor disposed on one side of the sliding handle.

[0016] The present invention also provides a laser treatment device, comprising a treatment machine and a treatment tool as described in any of the above embodiments.

[0017] In one embodiment of the present invention, the treatment machine is adapted to emit laser light and transmit the laser light to the lesion through an optical fiber to heat the tissue and cause the proliferative tissue to coagulate and necrotize.

[0018] Compared with the prior art, in the treatment tool and laser treatment device provided by the present invention, the optical fiber is located in the optical fiber channel in the puncture guide, and can eventually be laterally protruded through the puncture guide channel in the guide block and enter the human body through natural cavities such as the urethra under the guidance of an endoscope. It is suitable for scenarios that require side-shot laser and puncture into tissues or organs, such as laser treatment of the prostate. Secondly, by injecting coolant into the channel around the optical fiber, the heat generated by the optical fiber can be taken away, keeping the treatment tool working stably. Furthermore, by providing an optical fiber movement control component, it is convenient for the operator to control the protrusion depth of the optical fiber, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the present application, are incorporated into and constitute a part of this application, illustrate embodiments of the present application, and together with this specification serve to explain the principles of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a three-dimensional schematic diagram of the treatment tool according to the first embodiment of the present invention.

[0021] Figure 2-3 2 is a cross-sectional schematic diagram of a treatment tool according to a first embodiment of the present invention.

[0022] Figure 4 1 is a partial cross-sectional schematic diagram of the treatment tool at the distal end of the puncture guide according to the first embodiment of the present invention.

[0023] Figure 5 It is a partial schematic diagram of the treatment tool in the optical fiber movement control assembly according to the first embodiment of the present invention.

[0024] Figure 6 It is a partial cross-sectional schematic diagram of the optical fiber movement control assembly of the treatment tool according to the first embodiment of the present invention.

[0025] Figure 7-8 It is a partial exploded schematic diagram of the optical fiber movement control assembly of the treatment tool according to the first embodiment of the present invention.

[0026] Figure 9 It is a three-dimensional schematic diagram of the laser treatment device according to the second embodiment of the present invention.

[0027] Figure 10 It is a partial cross-sectional schematic diagram of the optical fiber movement control assembly of the treatment tool according to the second embodiment of the present invention.

[0028] Figure 11 It is a partial exploded schematic diagram of the optical fiber movement control assembly of the treatment tool according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0030] As used in this application and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0031] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0032] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is solely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. Furthermore, while the terms used in this application are selected from commonly known and commonly used terms, some terms mentioned in this specification may have been selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant sections of this description. Furthermore, this application should be understood not only by the actual terms used, but also by the meaning implied by each term.

[0035] It should be understood that when a component is referred to as being “on another component,” “connected to another component,” “coupled to another component,” or “contacting another component,” it can be directly on, connected to, coupled to, or contacting the other component, or intervening components may be present. In contrast, when a component is referred to as being “directly on another component,” “directly connected to,” “directly coupled to,” or “directly contacting” another component, there are no intervening components. Similarly, when a first component is referred to as being “electrically in contact with” or “electrically coupled to” a second component, an electrical path exists between the first and second components that allows current to flow. This electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even without direct contact between the conductive components.

[0036] Figure 1 is a three-dimensional schematic diagram of a treatment tool according to a first embodiment of the present invention, Figure 2-3 Schematic diagram of the cross section of the treatment tool of the first embodiment of the present invention. Figure 1-3As shown, the present invention provides a treatment tool 10 for a laser treatment device, comprising a housing 100, a puncture guide 200 located within the housing 100, an optical fiber assembly 300, and an endoscope 400. Specifically, the housing 100 is a cylindrical, through-hole structure having an endoscope channel 110 therein adapted to accommodate the endoscope 400. The endoscope 400 and the puncture guide 200 are arranged adjacent to each other within the housing 100 and extend along a first direction AA' (i.e., the extension direction of the treatment tool 10). In other words, the endoscope channel 110 can also be understood as the space within the housing 100 excluding the space occupied by the puncture guide 200.

[0037] Figure 4 Schematic diagram of a partial cross section of the treatment tool at the distal end of the puncture guide of the first embodiment of the present invention. Figure 1-4 As shown, the puncture guide 200 has an optical fiber channel 210, which is suitable for accommodating the optical fiber assembly 300, and the optical fiber assembly 300 in the treatment tool 10 provided by the present invention does not extend out of the puncture guide 200 along the first direction AA', but extends laterally. Specifically, the distal end of the puncture guide 200 (such as Figure 2-3 The upper end (i.e., the end away from the operator) of the guide block 220 has a guide block 220, which has a puncture guide channel 221. The puncture guide channel 221 is connected to the optical fiber channel 210, and an opening 222 is formed on the side of the guide block 220 for the optical fiber assembly 300 to protrude. Figure 4 As shown, in this embodiment, the body of the puncture guide 200 and the guide block 220 are not integrally formed, but are connected by bonding, which can reduce the difficulty of processing.

[0038] In this embodiment, the optical fiber assembly 300 includes a catheter 310 and an optical fiber 320 located in the catheter 310 . The optical fiber assembly 300 is adapted to extend into the optical fiber channel 210 and extend laterally from the opening 222 through the puncture guide channel 221 .

[0039] In such Figure 1-4 In the illustrated embodiment, the distal end of the optical fiber 320 is tapered. This configuration results in the laser light ultimately emitted through the optical fiber 320 forming a circular spot, which provides more concentrated energy and higher control accuracy. In a specific embodiment, a therapeutic tool 10 provided herein can be used to treat benign prostatic hyperplasia (BPH). In this case, the tapered end of the optical fiber 320 can also be used to puncture the patient's urethra wall to reach the vicinity of the prostate. In other embodiments, the end of the optical fiber 320 can also be designed into other shapes according to actual needs, and this application does not impose any specific limitations here.

[0040] Furthermore, in order to dissipate heat for the optical fiber 320 and prevent excessive temperature from affecting the normal operation of the treatment tool 10, Figure 1-4 In the preferred embodiment shown, the treatment tool 10 is also provided with a liquid cooling system, which cools the optical fiber 320 by circulating a coolant. Specifically, the treatment tool 10 has a connector 510, which is a three-way Luer connector with a water inlet 520. A gap is provided between the optical fiber assembly 300 and the optical fiber channel 210 to form a coolant injection channel 530. The coolant enters the coolant injection channel 530 through the water inlet 520 on the connector 510, and eventually exits the treatment tool 10 through the opening 222 and enters the patient's body. In a specific embodiment, a treatment tool 10 provided by the present application can be used to treat benign prostatic hyperplasia (BPH), in which case the coolant will be discharged into the patient's urethra through the opening 222. As an example, the coolant is normal saline.

[0041] Furthermore, in this embodiment, the treatment tool 10 further includes an outer sheath 540 and a sheath handle 550. The outer sheath 540 wraps the housing 100 and forms a coolant return channel 560 with the housing 100. The distal end of the outer sheath 540 has a plurality of return holes 541 (see Figure 4 (As shown). A sheath handle 550 is connected to the proximal end of the outer sheath tube 540. The proximal end of the outer sheath tube 540 has an opening 542. The sheath handle 550 has a water return port 551 that communicates with the opening 542. Excess cooling fluid in the patient's body can seep back into the cooling fluid return channel 560 through the multiple return ports 541 and be discharged through the opening 542 and the water return port 551, which is now located outside the patient's body.

[0042] Figure 5 This is a partial schematic diagram of the treatment tool in the optical fiber movement control assembly according to the first embodiment of the present invention. Figure 6 is a partial cross-sectional schematic diagram of the optical fiber movement control component of the treatment tool in embodiment 1 of the present invention, Figure 7-8 This is a partial exploded schematic diagram of the optical fiber movement control assembly of the treatment tool of the first embodiment of the present invention. Figure 5-8 As shown, the treatment tool 10 in the first embodiment further includes an optical fiber movement control assembly 600, which is connected to the housing 100 via a connector 510. The optical fiber movement control assembly 600 allows the optical fiber assembly 300 to pass through, and is used to control the axial movement of the optical fiber assembly 300 along the first direction AA' to control the length of the distal end of the optical fiber 320 passing through the opening 222.

[0043] It is understood that in other embodiments of the present invention, the treatment tool 10 may not be equipped with a coolant return function, thereby utilizing connectors 510 of other models and specifications, not limited to three-way Luer connectors. This is not a specific limitation of the present application. Furthermore, because the location and shape of the prostate vary from patient to patient, different puncture locations and depths are required during puncture treatment. Therefore, the extension of the optical fiber 320 must also be controlled by the optical fiber movement control assembly 600.

[0044] Specifically, in Figure 5-8 In the illustrated embodiment, the optical fiber movement control assembly 600 is manually operated, requiring an operator to manually adjust and control the extension of the optical fiber 320. The assembly comprises a housing 610, a sliding handle 620, a locking mandrel 630, a movable locking button 640, and a tail end locking member 650. The optical fiber assembly 300 extends through the housing 610 in the axial direction AA'. The sliding handle 620 is slidably disposed on the outer periphery of the housing 610 and includes an axial sleeve 621 extending through the housing 610. The locking mandrel 630 is disposed within the axial sleeve 621 and is adapted to lock or release the optical fiber assembly 300 in the circumferential direction BB'. The movable locking button 640 is disposed on the locking mandrel 630 and, when operated, locks or releases the locking mandrel 630. The tail end locking member 650 is disposed at the proximal end of the housing 610. The optical fiber assembly 300 extends through the tail end locking member 650 and, when operated, locks or releases the optical fiber assembly 300 in the circumferential direction BB'.

[0045] In this embodiment, the housing 610 has an opening 611 extending in a direction BB' perpendicular to the AA' direction. An axial sleeve 621 extends through this opening 611 in the BB' direction. Because the diameter of the axial sleeve 621 is smaller than that of the opening 611, the sliding handle 620 can slide outside the housing 610 in a first direction AA'. A locking mandrel 630 is disposed within the axial sleeve 621 and has a through hole extending in the first direction AA', suitable for allowing the optical fiber assembly 300 to pass through. A spring is provided on one side of the locking mandrel 630. When the movable locking button 640 is pressed, the spring compresses, and the side without the spring locks the optical fiber assembly 300, allowing the optical fiber 320 to move relative to the locking mandrel 630. At this point, operating the sliding handle 620 to slide in the first direction AA' causes the locking mandrel 630 and the movable locking button 640 to move together, causing the optical fiber assembly 300 to extend or retract a certain distance. After that, the movable locking button 640 is released, and the spring pushes the locking core shaft 630 outward, causing the optical fiber 320 and the locking core shaft 630 to contact each other. At this point, the two are relatively fixed and can move together. The sliding handle 620 is operated to drive the locking core shaft 630 back. Then, the movable locking button 640 is pressed again to lock the optical fiber assembly 300, and the sliding handle 620 is operated to slide, so that the optical fiber assembly 300 extends or retracts a certain distance. This is repeated to move the optical fiber assembly 300 to the desired length. When the operating position is reached, the operator releases the movable locking button 640 to loosen the optical fiber assembly 300, and simultaneously rotates the tail end locking member 650 to lock the optical fiber assembly 300 so that it no longer moves, and then proceeds to the next step of treatment.

[0046] In such Figure 5-8 In the preferred embodiment shown, the optical fiber movement control assembly 600 also includes a scale provided on the housing 610 and a scale reading portion 622 located on the sliding handle 620, which facilitates the operator to observe the extension degree of the optical fiber 320 and thereby determine whether the optical fiber 320 has reached the operating position.

[0047] Figure 9 is a three-dimensional schematic diagram of a laser treatment device according to a second embodiment of the present invention. Figure 10 is a partial cross-sectional schematic diagram of the optical fiber movement control component of the treatment tool of the second embodiment of the present invention, Figure 11 This is a partial exploded schematic diagram of the optical fiber movement control component of the treatment tool of the second embodiment of the present invention. Figure 9-11 As shown, the present invention also provides a laser treatment device 20 comprising a treatment machine 21 and a treatment tool 10'. The treatment machine 21 is adapted to emit laser light and transmit it to the lesion via an optical fiber 320, thereby heating the surrounding tissue and inducing coagulative necrosis. The treatment tool 10' and the treatment machine 21 are connected via the optical fiber 320 and are also connected via a bus 22 for data transmission.

[0048] The treatment tool 10' in the second embodiment also includes a housing 100, a puncture guide 200 located in the housing 100, an optical fiber assembly 300, and an endoscope 400. The puncture guide 200 has an optical fiber channel 210. The optical fiber assembly 300 includes a catheter 310 and an optical fiber 320 located in the catheter 310. For details, please refer to the previous embodiment (e.g. Figure 1-8 shown), which will not be described here.

[0049] Compared to the treatment tool 10 in the previous embodiment, the fiber movement control assembly 600' of the treatment tool 10' in this embodiment is automatically controlled, eliminating the need for an operator to manually adjust the extension of the optical fiber 320. Specifically, the fiber movement control assembly 600' includes a housing 610', a sliding handle 620', a locking mandrel 630', a sliding plate 640', a sliding actuator 650', a first locking actuator 660', a tail end locking member 670', and a second locking actuator 680'.

[0050] Specifically, the optical fiber assembly 300 passes through the housing 610' in the axial direction. The sliding handle 620' is slidably disposed on the outer periphery of the housing 610' and has an axial sleeve 621' that passes through the housing 610'. The locking core shaft 630' is disposed in the axial sleeve 621' and is suitable for locking or loosening the optical fiber assembly 300 in the circumferential direction. The sliding piece 640' is connected to the end of the locking core shaft 630'. The sliding driver 650' is suitable for pushing the sliding piece 640' to slide in the axial direction (i.e., the AA' direction) of the optical fiber assembly 300, thereby driving the locking core shaft 630' and the sliding handle 320' to slide. An example of the sliding driver 650' includes a motor with a lead screw and a sliding nut connected to the output shaft of the motor. The first locking driver 660' is suitable for pushing the sliding piece 640' to move radially along the optical fiber assembly 300, thereby driving the locking core shaft 630' to lock or loosen the optical fiber assembly 300 in the axial direction. An example of the first locking driver 660' is an electric cylinder. A tail end locking member 670' is disposed at the proximal end of the housing 610'. The optical fiber assembly 300 passes through the tail end locking member 670'. A second locking actuator 680' is connected to the tail end locking member 670' and is adapted to drive the tail end locking member 670' to circumferentially lock or release the optical fiber assembly 300. An example of the second locking actuator 680' includes a geared motor 681' and a toothed transmission belt 682' connected thereto. Correspondingly, the tail end locking member 670' also has a gear that meshes with the toothed transmission belt 682'.

[0051] In this preferred embodiment, the optical fiber movement control assembly 600' further includes a travel sensor 690' disposed on one side of the sliding handle 630' to detect the extended length of the optical fiber assembly 300, thereby determining whether the optical fiber 320 reaches the operating position.

[0052] In one example, the optical fiber movement control assembly 600' further includes limit switches 601' located on both sides of the sliding handle 620', for limiting the sliding limit of the sliding handle 620'.

[0053] The basic concepts have been described above. It will be apparent to those skilled in the art that the above disclosures are merely illustrative and do not constitute limitations on this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to this application. Such modifications, improvements, and amendments are suggested in this application and remain within the spirit and scope of the exemplary embodiments of this application.

[0054] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0055] Similarly, it should be noted that, in order to simplify the presentation of this application and thus facilitate understanding of one or more embodiments of the invention, the foregoing descriptions of the embodiments of this application sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, an embodiment may have fewer features than all of the features of a single embodiment disclosed above.

[0056] In some embodiments, numbers are used to describe the quantity of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0057] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions can be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A treatment tool for a laser treatment device, characterized in that include: a housing having an endoscope channel therein; A puncture guide located within the housing, the puncture guide having an optical fiber channel therein and a guide block at a distal end thereof, the guide block having a puncture guide channel communicating with the optical fiber channel and forming an opening on a side of the guide block; an optical fiber assembly adapted to extend into the optical fiber channel and extend from the opening through the puncture guide channel, the optical fiber assembly comprising a catheter and an optical fiber located in the catheter; An endoscope is arranged in the endoscope channel.

2. The treatment tool according to claim 1, wherein The distal end of the optical fiber is tapered.

3. The treatment tool according to claim 1, wherein A gap is provided between the optical fiber assembly and the optical fiber channel to form a cooling liquid injection channel.

4. The treatment tool according to claim 3, characterized in that It also includes an outer sheath tube that wraps the outer shell and forms a coolant reflux channel with the outer shell. The outer sheath tube has a plurality of reflux holes at the distal end that communicate with the coolant reflux channel.

5. The treatment tool according to claim 4, characterized in that It also includes a sheath handle connected to the proximal end of the outer sheath tube, the proximal end of the outer sheath tube has an opening communicated with the coolant return channel, and the sheath handle has a water return port communicated with the opening.

6. The treatment tool according to claim 1, wherein It also includes an optical fiber movement control component connected to the housing through a connector. The optical fiber movement control component allows the optical fiber component to pass through and is used to control the axial movement of the optical fiber component to control the length of the optical fiber distal end passing through the opening.

7. The treatment tool according to claim 6, characterized in that There is a gap between the optical fiber assembly and the optical fiber channel to form a coolant injection channel. The connector is a three-way Luer connector with a water inlet, and the water inlet is connected to the coolant injection channel through the connector cavity.

8. The treatment tool according to claim 6, wherein The optical fiber movement control component includes: a housing, wherein the optical fiber assembly passes through the housing in the axial direction; a sliding handle slidably disposed on the outer periphery of the housing and having an axial sleeve passing through the housing; A locking core shaft, disposed in the axial sleeve, adapted to axially lock or loosen the optical fiber assembly; a movable locking button, disposed on the locking spindle and causing the locking spindle to lock or release when operated; and a tail end locking member, disposed at the proximal end of the housing, through which the optical fiber assembly passes, and which circumferentially locks or releases the optical fiber assembly when operated; When the sliding handle is operated, the locking core shaft and the movable locking button are driven to move together.

9. The treatment tool according to claim 8, wherein The optical fiber movement control assembly further includes a scale provided on the housing and a scale reading portion located on the sliding handle.

10. The treatment tool according to claim 6, wherein The optical fiber movement control component includes: a housing, wherein the optical fiber assembly passes through the housing in the axial direction; a sliding handle slidably disposed on the outer periphery of the housing and having an axial sleeve passing through the housing; A locking core shaft, disposed in the axial sleeve, adapted to circumferentially lock or loosen the optical fiber assembly; a sliding piece connected to the end of the locking mandrel; A sliding driver, adapted to push the sliding plate to slide axially along the optical fiber assembly, thereby driving the locking core shaft and the sliding handle to slide; a first locking driver, adapted to push the sliding piece to move radially along the optical fiber assembly, so as to drive the locking core shaft to circumferentially lock or release the optical fiber assembly; a tail end locking member, disposed at the proximal end of the housing, through which the optical fiber assembly passes; and The second locking driver is connected to the tail end locking member and is suitable for driving the tail end locking member to lock or release the optical fiber assembly in a circumferential direction.

11. The treatment tool according to claim 10, wherein The optical fiber movement control component further comprises a travel sensor arranged on one side of the sliding handle.

12. A laser treatment device, characterized in that: The invention comprises a treatment machine and a treatment tool as described in any one of claims 1 to 11.

13. The laser treatment device according to claim 12, wherein The treatment machine is suitable for emitting laser light and transmitting the laser light to the lesion through the optical fiber to heat the tissue so as to cause the proliferative tissue to coagulate and necrotize.

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