Treatment tool for laser treatment device and laser treatment device

Abstract

The utility model provides a treatment tool used for laser treatment equipment and the laser treatment equipment, the treatment tool comprises a side-emission optical fiber assembly and an endoscope which are combined into a whole, the side-emission optical fiber assembly comprises a shell, a side-emission optical fiber reflection piece and an optical fiber, the far end of the shell is provided with a side-emission port, and the side-emission port is communicated with the endoscope. The side-emission optical fiber reflection piece is arranged at the far end of the shell and provided with a light-in face and a light-reflecting face suitable for reflecting light from the light-in face to the side-emission opening, and the optical fiber is arranged in the shell and extends to the light-in face of the side-emission optical fiber reflection piece.

Description

Technical Field

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

[0002] With the continuous development of laser technology and medical level, optical fiber is gradually being applied to medical systems. Laser therapy with optical fiber light guides can deliver light energy into the human body to perform treatment tasks such as vaporization, cutting, hemostasis, etc. In recent years, it has also been found that benign prostatic hyperplasia (BPH) can be alleviated by coagulating prostatic hyperplasia tissue through laser irradiation.

[0003] Laser surgery requires not only a fiber optic light guide to transmit the laser, but also an endoscope system to observe the internal conditions of the surgical object to facilitate the operation. Therefore, it is expected that there is a treatment tool that can combine these two components. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a treatment tool and laser treatment equipment which have the functions of transmitting laser and observing the internal condition of the surgical object at the same time.

[0005] In order to solve the above technical problems, the utility model provides a treatment tool for laser treatment equipment, including a side-firing fiber optic assembly and an endoscope combined into one body, the side-firing fiber optic assembly including a housing, a side-firing fiber optic reflector and an optical fiber, the housing having a side-firing port at the distal end, the side-firing fiber optic reflector being arranged at the distal end of the housing and having a light incident surface and a reflective surface suitable for reflecting light from the light incident surface to the side-firing port, the optical fiber being arranged in the housing and extending to the light incident surface of the side-firing fiber optic reflector.

[0006] In one embodiment of the present invention, the treatment tool further includes a cooling liquid injection channel located between the optical fiber and the housing, and the cooling liquid injection channel is connected to the side injection port.

[0007] In one embodiment of the present invention, the treatment tool further comprises a reflector protection cover, which is located in the housing and covers the side-emitting optical fiber reflector except for the light incident surface.

[0008] In one embodiment of the present invention, the treatment tool further comprises a first tube body, and the side-emitting optical fiber assembly and the endoscope are located in the first tube body.

[0009] In one embodiment of the utility model, it also includes a shell handle located outside the first tube body and away from the distal end of the shell, and the shell handle has a coolant inlet communicated with the coolant injection channel.

[0010] In one embodiment of the utility model, the treatment tool also includes a second tube body surrounding the first tube body, a coolant reflux channel is formed between the first tube body and the second tube body, and the second tube body has a reflux hole penetrating from the outside to the coolant reflux channel, and the shell handle has a coolant outlet communicated with the coolant reflux channel.

[0011] In one embodiment of the present invention, the side-emitting optical fiber reflector has a light-emitting surface facing the side-emitting port, and the light-emitting surface is a plane.

[0012] In one embodiment of the present invention, the side-emitting optical fiber reflector has a wedge-shaped portion and a columnar portion, the wedge-shaped portion has a light incident surface and a light reflecting surface, and the columnar portion is adapted to the shape and size of the inner side surface of the housing.

[0013] In one embodiment of the present invention, the treatment tool further includes: an optical fiber sleeve wrapping the optical fiber; and / or a protective cover wrapping the endoscope.

[0014] The utility model also provides a laser treatment device, comprising a treatment machine and a treatment tool as in any of the above embodiments.

[0015] Compared with the prior art, the therapeutic tool and laser therapeutic device for laser treatment equipment provided by the utility model include a side-emitting optical fiber assembly and an endoscope that are integrated into one, which can facilitate observation of the internal condition of the surgical object while transmitting laser treatment, and the therapeutic tool has a compact and simple structure. Since the laser emission port is located on the side, the utility model is particularly suitable for scenarios that require side-emitting lasers, 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 therapeutic tool working stably. Furthermore, by providing a reflector protective cover, the reflector at the light outlet can be protected to avoid damage due to contact with water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present utility model. In the accompanying drawings:

[0017] Figure 1 It is a three-dimensional schematic diagram of the treatment tool of Example 1 of the present application.

[0018] Figure 2 It is a cross-sectional schematic diagram of the treatment tool of Example 1 of the present application.

[0019] Figure 3 It is a partial cross-sectional schematic diagram of the treatment tool of Example 1 of the present application.

[0020] Figure 4 It is a three-dimensional schematic diagram of the treatment tool of the second embodiment of the present application.

[0021] Figure 5 It is a cross-sectional schematic diagram of the treatment tool of the second embodiment of the present application.

[0022] Figure 6 It is a cross-sectional schematic diagram of the treatment tool of the second embodiment of the present application at another angle.

[0023] Figure 7 It is a partial cross-sectional schematic diagram of the treatment tool of the second embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0025] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps 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 accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0027] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present 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, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying 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.

[0029] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0030] 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 present.

[0031] Figure 1is a three-dimensional schematic diagram of a treatment tool according to Embodiment 1 of the present application, Figure 2 is a cross-sectional schematic diagram of the treatment tool of the first embodiment of the present application, Figure 3 It is a partial cross-sectional schematic diagram of the treatment tool of Example 1 of the present application. Figure 3 It is shown that Figure 2 The part within the dotted circle shown in the figure is combined with the reference Figure 1-3 As shown, the present application provides a treatment tool 10 for a laser treatment device, comprising a side-emitting optical fiber assembly 100 and an endoscope 200 combined into one body. Figure 1 In the preferred embodiment shown, the treatment tool 10 further includes a first tube body 300, and the side-firing optical fiber assembly 100 and the endoscope 200 are located in the first tube body 300. Specifically, the side-firing optical fiber assembly 100 and the endoscope 200 extend in the same direction, and the length of the side-firing optical fiber assembly 100 is greater than the length of the endoscope 200. The first tube body 300 wraps a portion of the length of the side-firing optical fiber assembly 100 and the entire length of the endoscope 200 (refer to Figure 2 shown).

[0032] In this embodiment, the side-firing optical fiber assembly 100 includes a housing 110, a side-firing optical fiber reflector 120, and an optical fiber 130, wherein the distal end of the housing 110 (i.e., Figure 3 The housing 110 (shown at the upper end) has a side-emitting port 111, which is used to emit light so that the laser can be irradiated to the affected area. The side-emitting optical fiber reflector 120 is also arranged at the distal end of the housing 110, specifically at a position close to the side-emitting port 111, and the side-emitting optical fiber reflector 120 has a light incident surface 121 and a light reflecting surface 122, and there is a certain angle (typically 45°) between the two, so that the light reflecting surface 122 can reflect the light from the light incident surface 121 to the side-emitting port 111 and emit it. The optical fiber 130 is arranged in the housing 110, and its distal end extends all the way to the light incident surface 121 of the side-emitting optical fiber reflector 120. The distal end of the optical fiber 130 can be combined with the light incident surface 121, or it can be in contact with it but not combined together. The proximal end of the optical fiber 130 is connected to the treatment machine of the laser treatment device through the optical fiber connector 140.

[0033] like Figure 1-3 FIG. 1 is a preferred embodiment of the present application. In this embodiment, the treatment tool 10 further includes a cooling liquid injection channel 140 (see FIG. 140 ) located between the optical fiber 130 and the housing 110. Figure 3 The cooling liquid injection channel 140 is connected to the side injection port 111, and the side injection port 111 not only emits light but also discharges liquid. Further, the treatment tool 10 also includes a shell handle 301 located outside the first tube body 300 and away from the distal end of the shell 110. The shell handle 301 surrounds the outside of the first tube body 300, has a diameter greater than the shell 110, and has a cooling liquid inlet 112 connected to the cooling liquid injection channel 140.

[0034] Specifically, in actual use, the treatment tool 10 can be used with an external coolant source (such as a syringe, not shown), and the coolant enters the coolant injection channel 140 from the cooling system through the coolant inlet 112, and finally flows out through the side injection port 111, thereby cooling the optical fiber 130. It should be noted that Figure 2-3 In the angle shown, the coolant injection channel 140 is located on the left and right sides of the optical fiber 130 , but in fact the coolant injection channel 140 is connected to surround the optical fiber 130 , and can be understood as an annular gap between the housing 110 and the optical fiber 130 .

[0035] In one example, the cooling fluid is saline.

[0036] In such Figure 3 In the preferred embodiment shown, the treatment tool 10 further includes a reflector protection cover 123, which is located in the housing 110 and covers the side-emitting optical fiber reflector 120 except for the light-entering surface 121, and protects the side-emitting optical fiber reflector 120 without affecting the optical path. In this embodiment, the side-emitting optical fiber reflector 120 also has a light-emitting surface 124 facing the side-emitting port 111 of the housing 110, and the light-emitting surface 124 is a plane or a substantially horizontal plane. After the optical fiber passes through the reflective surface 122, it is emitted through the light-emitting surface 124, and the optical path does not make a turn at the light-emitting surface 124.

[0037] Furthermore, in Figure 1-3 In the illustrated embodiment, the side-emitting optical fiber reflector 120 has a wedge-shaped portion 120a and a cylindrical portion 120b, the light incident surface 121 and the light reflecting surface 122 are both located on the wedge-shaped portion 120a, and the cylindrical portion 120b is adapted to the shape and size of the inner surface of the housing 110 to ensure the stability of the side-emitting optical fiber reflector 120 in the housing 110.

[0038] In order to further enhance the strength of the treatment tool 10, Figure 3 In the illustrated embodiment, the treatment tool 10 further comprises a protective sheath 201 that wraps the endoscope 200. In some other embodiments, the treatment tool 10 may further comprise an optical fiber sleeve 131 that wraps the optical fiber 130, and the present application does not impose any specific limitation thereto.

[0039] Figure 4 is a three-dimensional schematic diagram of a treatment tool according to Embodiment 2 of the present application, Figure 5 is a cross-sectional schematic diagram of a treatment tool according to Embodiment 2 of the present application, Figure 6 is a cross-sectional schematic diagram of the treatment tool of the second embodiment of the present application at another angle, Figure 7 It is a partial cross-sectional schematic diagram of the treatment tool of the second embodiment of the present application. In this embodiment, the treatment tool 10' also includes an optical fiber assembly 100', an endoscope 200' and a first tube 300'.

[0040] Compared with the previous embodiment, the treatment tool 10' further includes a second tube body 400 surrounding the first tube body 300', a cooling liquid reflux channel 410 is formed between the first tube body 300' and the second tube body 400, and the second tube body 400 has a reflux hole 401 penetrating from the outside to the cooling liquid reflux channel 410, and the reflux hole 401 is located on the second tube body 400 at a position suitable for entering the patient's urethra. In the actual operation process, since there may be liquid in the patient's bladder and physiological saline needs to be injected during the operation to ensure that the operating environment (i.e., the urethra) is a liquid environment, this part of the liquid can enter the cooling liquid reflux channel 410 through at least one reflux hole 401 during the operation and be discharged through the cooling liquid outlet 113 on the shell handle 301.

[0041] Furthermore, the utility model also provides a laser treatment device, including a treatment machine and a treatment tool 10 as in any of the previous embodiments. The treatment machine plays a role in assisting operation, and may have a display screen and / or a control device, etc., to display an operation screen, indicate operation steps and data to the operator.

[0042] The basic concepts have been described above. Obviously, for those skilled in the art, the above utility model disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0043] At the same time, the present application uses specific words to describe the embodiments of the present 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 the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0044] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more utility model embodiments, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, drawing or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0045] In some embodiments, numbers describing the number of components and attributes are used. 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 specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification 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 setting of such numerical values ​​is as accurate as possible within the feasible range.

[0046] 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 may 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 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, comprising a side-firing optical fiber assembly and an endoscope combined into one body, characterized in that: The side-emitting fiber optic assembly includes a shell, a side-emitting fiber optic reflector, and an optical fiber. The shell has a side-emitting port at the far end. The side-emitting fiber optic reflector is disposed at the far end of the shell and has a light incident surface and a reflective surface suitable for reflecting light from the light incident surface to the side-emitting port. The optical fiber is disposed in the shell and extends to the light incident surface of the side-emitting fiber optic reflector.

2. The treatment tool according to claim 1, characterized in that It also includes a cooling liquid injection channel located between the optical fiber and the housing, and the cooling liquid injection channel is communicated with the side injection port.

3. The treatment tool according to claim 1 or 2, characterized in that: It also includes a reflector protection cover, which is located in the housing and covers the part of the side-emitting optical fiber reflector except the light incident surface.

4. The treatment tool according to claim 2, characterized in that It also includes a first tubular body, in which the side-firing optical fiber assembly and the endoscope are located.

5. The treatment tool according to claim 4, characterized in that It also includes a shell handle located outside the first tube body and away from the distal end of the shell, and the shell handle has a coolant inlet communicated with the coolant injection channel.

6. The treatment tool according to claim 5, characterized in that It also includes a second tube body surrounding the first tube body, a coolant reflux channel is formed between the first tube body and the second tube body, and the second tube body has a reflux hole penetrating from the outside to the coolant reflux channel, and the shell handle has a coolant outlet communicated with the coolant reflux channel.

7. The treatment tool according to claim 1, characterized in that The side-emitting optical fiber reflector has a light-emitting surface facing the side-emitting port, and the light-emitting surface is a plane.

8. The treatment tool according to claim 1, characterized in that The side-emitting optical fiber reflector has a wedge-shaped portion and a columnar portion, the wedge-shaped portion has the light incident surface and the light reflecting surface, and the columnar portion is adapted to the shape and size of the inner side surface of the housing.

9. The treatment tool according to claim 1, characterized in that Also includes: an optical fiber sleeve enclosing the optical fiber; and / or A protective cover encasing the endoscope.

10. 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 9.

Images