Lighting devices for medical devices, and medical device kits

The illumination device for medical instruments addresses the challenge of inadequate lighting in deep wounds by using a light-emitting and light guide system, ensuring clear visibility and ease of use with detachable design for disinfection and safety.

JP2026514484APending Publication Date: 2026-05-11SMTP MEDICAL CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
SMTP MEDICAL CO LTD
Filing Date
2024-05-14
Publication Date
2026-05-11

AI Technical Summary

Technical Problem

Current surgical illumination devices, such as shadowless lamps, struggle to provide adequate lighting in deep and narrow wounds with significant internal cavities, making it difficult for operators to clearly view the operating position.

Method used

An illumination device for medical instruments featuring a housing component with an accommodation space and an illumination assembly that includes a light-emitting element and a light guide element, which extends along the longitudinal axis to provide direct illumination at the operating position, using materials like polycarbonate and LED emitters to enhance visibility.

Benefits of technology

The solution ensures clear visibility at the operating position by providing direct illumination, even in deep wounds, while being designed for easy attachment and detachment to facilitate disinfection and prevent obstruction or infection risks.

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Abstract

This disclosure provides a lighting device for a medical device and a medical device kit. The lighting device for a medical device includes a housing component having a housing space extending along the longitudinal axis of the housing component, and a lighting assembly disposed within the housing space and having a channel extending along the longitudinal axis. The lighting device is capable of providing illumination when the medical device is in use, enabling a person operating the medical device to have a better field of view.
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Description

Technical Field

[0001] Cross-reference This disclosure relates to Chinese Patent Application No. 202310749306.6, titled "ILLUMINATION APPARATUS FOR MEDICAL INSTRUMENT AND MEDICAL INSTRUMENT KIT", filed on June 21, 2023, which is incorporated herein by reference in its entirety.

[0002] This disclosure relates to the technical field of medical instruments, and particularly to illumination devices for medical instruments and medical instrument kits.

Background Art

[0003] Currently, the illumination in surgical instruments mainly depends on shadowless lamps, which are generally effective in most application scenarios. However, in some procedures, it is difficult to obtain illumination because light cannot reach deep wound areas. This is particularly prominent in situations involving deep and narrow wounds with significant internal cavities, making it difficult to use shadowless lamps.

Summary of the Invention

[0004] This disclosure is intended to solve at least one of the technical problems existing in the background art.

[0005] According to one aspect of this disclosure, some embodiments of this disclosure provide an illumination device for a medical instrument, the illumination device including a housing component provided with an accommodation space extending along the longitudinal axis of the housing component, and an illumination assembly disposed within the accommodation space and provided with a channel extending along the longitudinal axis.

[0006] By applying the illumination device according to some embodiments of this disclosure, such as fixing the illumination device to a medical instrument, direct illumination can be provided at the operating position during the operation of the medical instrument, thereby facilitating the operator of the medical instrument to clearly view the operating position.

[0007] It should be understood that “medical devices” in this disclosure may include any type of medical device, such as surgical scalpels, surgical clamps, surgical forceps, and irrigation or suction tubes. Surgical scalpels may include ultrasonic scalpels and electrosurgical scalpels.

[0008] In some embodiments of the present disclosure, the lighting assembly may include a light-emitting element and a light guide element positioned adjacent to the light-emitting element and configured to guide the light emitted from the light-emitting element to the outside of the lighting device, wherein the light-emitting element and the light guide element jointly define a channel.

[0009] In the embodiments described above of this disclosure, the light-emitting element may be positioned in contact with the light-guiding element, or it may be positioned at a certain distance from the light-guiding element, as long as the light-guiding element can guide the light emitted from the light-emitting element to the outside of the lighting device.

[0010] In some embodiments of this disclosure, the light-emitting element may be annular, and the light-guiding element may also be cylindrical, so that the light-emitting element and the light-guiding element can jointly define a channel having a circular cross-section.

[0011] In some embodiments of this disclosure, the light-emitting element includes one or more combinations of a halogen lamp, an LED emitter, or an optical fiber.

[0012] In some embodiments of this disclosure, the light guide element is transparent or translucent.

[0013] In some embodiments of this disclosure, the light guide element is made of one or more materials selected from polycarbonate, polyethylene terephthalate, polypropylene, and polymethyl methacrylate.

[0014] In some embodiments of this disclosure, the light guide element further includes a light diffusing agent.

[0015] The light diffusing agent may include inorganic light diffusing agents (e.g., nanobarium sulfate, calcium carbonate, silicon dioxide, etc.) and organic light diffusing agents (e.g., acrylic-based, styrene-based, acrylic resin-based, etc.). By adding the light diffusing agent to the light guide element, the illumination range and / or illumination uniformity of the lighting device can be expanded.

[0016] In some embodiments of this disclosure, the light guide element extends a predetermined distance from the housing space.

[0017] Since the external dimensions of the light guide element are smaller than the external dimensions of the housing component, the light guide element can be positioned to extend a predetermined distance from within the housing space, thereby bringing it closer to the operating position of the medical device. Furthermore, the light guide element avoids obstructing the view of the medical device operator when the housing component, which has larger external dimensions, approaches the operating position of the medical device.

[0018] In some embodiments of this disclosure, the lighting device further includes a power supply electrically connected to the lighting assembly.

[0019] It will be recognized that the term "power supply" as used herein may be a power supply fixedly connected to the lighting assembly, or a power supply detachably connected to the lighting assembly (for example, the power supply is an external power supply electrically connected to the lighting assembly by wires).

[0020] In some embodiments of this disclosure, the housing component includes a power supply compartment for housing a power supply and a cover for closing the power supply compartment.

[0021] In some embodiments of this disclosure, the cover may seal the power supply within the power supply compartment.

[0022] Since the medical device may come into direct contact with liquids such as body fluids (such as blood) or cleaning fluids during use, the lighting device may also come into direct contact with body fluids (such as blood) or cleaning fluids. By hermetically housing the power source in the power supply compartment, it is possible to avoid a short circuit inside the lighting device due to those liquids.

[0023] In some embodiments according to the present disclosure, the lighting device further includes a switch disposed in a housing component, and the switch is configured to selectively turn on and off the electrical connection between the power source and the lighting assembly.

[0024] By setting the above switch, it is possible to selectively turn on and off the electrical connection between the power source and the lighting assembly during use of the medical device.

[0025] In some embodiments according to the present disclosure, the housing component has a first end portion and a second end portion on opposite sides of each other, the light guide element is disposed adjacent to the first end portion, and the switch is disposed adjacent to the second end portion.

[0026] In order to better illuminate the operating position of the medical device, during use, the end portion of the light guide element for illumination should be as close as possible to the operating position of the medical device, and for procedures involving deeper wounds, the end portion of the light guide element for illumination may enter the wound. By installing the switch as far as possible from the light guide element, the switch can be easily operated.

[0027] In some embodiments according to the present disclosure, the switch is a disposable switch.

[0028] To avoid the possibility of infection caused by reuse, by way of example, the lighting device in the embodiments of the present disclosure may be a disposable lighting device. To prevent the lighting device of the present disclosure from being undesirably reused, the switch may be set as a disposable switch, that is, once the switch is turned on, it cannot be turned off again, or once the switch is turned on and then turned off, it cannot be turned on again.

[0029] In some embodiments according to the present disclosure, the lighting device further includes a disposable insulating member configured to cut off the electrical connection between the power supply and the lighting assembly.

[0030] In the above embodiments of the present disclosure, the disposable insulating member described above can function as a switch. That is, by removing the insulating member, the electrical connection between the power supply and the lighting assembly can be established, and thus the lighting device is used for lighting. Since the insulating member is a disposable insulating member, that is, once the insulating member is removed from the lighting device, the insulating member cannot be reused to cut off the electrical connection between the power supply and the lighting assembly, and the insulating member further prevents the lighting device from being reused.

[0031] When a switch for selectively turning on and off the electrical connection between the power supply and the lighting assembly is provided on the lighting device itself of the present disclosure, the insulating member may be configured to prevent the lighting device from accidentally touching the switch during transportation or use to establish the electrical connection between the power supply and the lighting assembly. That is, before the disposable insulating member is removed, even if the switch is on, the electrical connection between the power supply and the lighting assembly is further cut off by the insulating member.

[0032] In some embodiments according to the present disclosure, the housing component includes a connection portion for detachably fixing the lighting device to a medical device.

[0033] The embodiments described above in this disclosure are particularly applicable to reusable medical devices. That is, the lighting device may be removed from the medical device after use to facilitate tasks such as disinfection of the medical device.

[0034] According to another aspect of the present disclosure, some embodiments of the present disclosure provide a medical device kit that includes a medical device and a lighting device according to any of the embodiments described above.

[0035] According to the medical device kit of the above embodiments of the present disclosure, the lighting device may be fixed to the medical device, the lighting device and the medical device may be positioned separately from each other, and the lighting device may be fixed to the medical device only when the medical device is in use.

[0036] In some embodiments of this disclosure, a portion of a medical device is housed within a channel of a lighting assembly.

[0037] The lighting device is configured to illuminate the working position of a medical device so that the operator of the medical device can clearly see the working position. Therefore, exemplary, the lighting device is positioned close to the working position of the medical device to better illuminate the working position. Since the aforementioned portion of the medical device is housed within the channels of the lighting assembly, certain components of the medical device can be prevented from obstructing the light emitted by the lighting device, while at the same time providing 360-degree omnidirectional illumination around the medical device.

[0038] In some embodiments of this disclosure, the lighting device is detachably attached to a medical device.

[0039] As described above, the embodiments of this disclosure are particularly applicable to reusable medical devices. That is, the lighting device can be removed from the medical device after use to facilitate tasks such as disinfection of the medical device.

[0040] In some embodiments of this disclosure, the medical device includes a handle, and the lighting device is detachably connected to the handle.

[0041] The embodiments described above in this disclosure are particularly applicable to various types of ultrasonic medical instruments, such as ultrasonic surgical scalpels. An ultrasonic medical instrument includes an excitation source (such as an ultrasonic transducer which can be used as a handle for the ultrasonic medical instrument) and an operating component (configured to amplify the vibrations generated by the excitation source for surgical purposes). By fixing an illumination device to the handle, it is possible to prevent the illumination device from affecting the operation of the operating component of the ultrasonic medical instrument, and also to prevent vibrations of the operating component from affecting the illumination action of the illumination device.

[0042] In some embodiments of this disclosure, the lighting device is detachably connected to the handle by screw connections, snap connections, or interlocking fits.

[0043] In some embodiments of this disclosure, the lighting device is detachably attached to the medical device by a tight fit between the portion of the medical device and the channel of the lighting assembly.

[0044] In some embodiments of this disclosure, a gap is provided between the portion of the medical device and the channel.

[0045] The embodiments described above of this disclosure are also particularly applicable to ultrasonic medical instruments, such as various types of ultrasonic surgical scalpels. An ultrasonic medical instrument includes an excitation source (such as an ultrasonic transducer which can be used as a handle for the ultrasonic medical instrument) and an operating component (configured to amplify vibrations generated by the excitation source for surgical purposes). By providing a gap between the portion of the medical instrument and the channel, it is possible to prevent the illumination device from affecting the operation of the operating component of the ultrasonic medical instrument, and also to prevent vibrations of the operating component from affecting the illumination action of the illumination device.

[0046] In the accompanying drawings, the same reference numeral means the same or similar component or element across multiple accompanying drawings unless otherwise specified. These accompanying drawings are not necessarily drawn to actual size. It should be understood that these accompanying drawings illustrate only some of the embodiments provided herein and should not be construed as limiting the scope of the disclosure. [Brief explanation of the drawing]

[0047] [Figure 1] This is a perspective view of a lighting device according to a first embodiment of the present disclosure. [Figure 2] Figure 1 is an exploded view of the lighting device shown. [Figure 3] This is a perspective view of a lighting device according to a second embodiment of the present disclosure. [Figure 4] Figure 3 is an exploded assembly diagram of the lighting device shown. [Figure 5] This is a perspective view of a lighting device according to a third embodiment of the present disclosure. [Figure 6] Figure 5 is an exploded assembly diagram of the lighting device shown. [Figure 7] This is a perspective view of the lighting device according to this disclosure, connected to a medical device. [Figure 8] This is a perspective view of the lighting device according to this disclosure connected to further medical devices. [Modes for carrying out the invention]

[0048] Only a few exemplary embodiments are briefly described below. As those skilled in the art will understand, the embodiments described can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the accompanying drawings and description are not limiting, but rather useful for factual explanation.

[0049] Figure 1 is a perspective view of a lighting device according to a first embodiment of the present disclosure, and Figure 2 is an exploded view of the lighting device shown in Figure 1. As shown in Figures 1 and 2, a lighting device 100 for a medical device (not shown) according to some embodiments of the present disclosure includes a housing component 110 having a housing space extending along the longitudinal axis of the housing component 110, and a lighting assembly 120 having a channel 121 positioned within the housing space and extending along the longitudinal axis.

[0050] By fixing the lighting device 100 to the medical device, and applying the lighting device 100 according to some embodiments of this disclosure to the medical device, it is possible to provide direct illumination to the working position during operation of the medical device, thereby promoting clear visibility of the working position by the operator of the medical device.

[0051] It should be understood that “medical devices” in this disclosure may include any type of medical device, such as surgical scalpels, surgical clamps, surgical forceps, and irrigation or suction tubes. Surgical scalpels may include ultrasonic surgical scalpels and electrosurgical scalpels.

[0052] In some embodiments of the present disclosure, the lighting assembly 120 may include a light-emitting element 122 and a light guide element 123 positioned adjacent to the light-emitting element 122 and configured to guide the light emitted from the light-emitting element 122 to the outside of the lighting device 100, wherein the light-emitting element 122 and the light guide element 123 jointly define a channel 121.

[0053] In the above embodiments of the present disclosure, the light-emitting element 122 may be positioned in contact with the light-guiding element 123, or it may be positioned at a certain distance from the light-guiding element 123, as long as the light-guiding element 123 can guide the light emitted from the light-emitting element 122 to the outside of the lighting device 100.

[0054] In some embodiments of this disclosure, as shown in Figure 2, the light-emitting element 122 may be annular, and the light guide element 123 may also be cylindrical, so that the light-emitting element 122 and the light guide element 123 can jointly define a channel 121 having a circular cross-section.

[0055] In some embodiments of this disclosure, the light-emitting element 122 includes one or more combinations of a halogen lamp, a light-emitting diode (LED) emitter, or an optical fiber.

[0056] In some embodiments of this disclosure, the light guide element 123 is transparent or translucent.

[0057] In some embodiments of this disclosure, the light guide element 123 is made of one or more materials selected from polycarbonate, polyethylene terephthalate, polypropylene, and polymethyl methacrylate.

[0058] In some embodiments of this disclosure, the light guide element 123 further includes a light diffuser. By adding the light diffuser to the light guide element, the illumination range and / or illumination uniformity of the lighting device 100 can be expanded.

[0059] In some embodiments of this disclosure, the light guide element 123 extends a predetermined distance from the housing space.

[0060] Since the outer dimensions of the light guide element 123 are smaller than the outer dimensions of the housing component 110, the light guide element 123 can be positioned so that it extends a predetermined distance from within the housing space, thereby bringing it closer to the operating position of the medical device. Furthermore, the light guide element 123 avoids obstructing the view of the medical device operator when the housing component 110, which has larger outer dimensions, approaches the operating position of the medical device.

[0061] Figure 3 is a perspective view of a lighting device according to a second embodiment of the present disclosure, and Figure 4 is an exploded view of the lighting device shown in Figure 3. The lighting device 100 of the second embodiment shown in Figures 3 and 4 differs from the lighting device 100 of the first embodiment shown in Figures 1 and 2 in that the lighting device 100 of the second embodiment shown in Figures 3 and 4 further includes other components.

[0062] Specifically, as shown in Figure 4, the lighting device 100 further includes a power supply 130 that is electrically connected to the lighting assembly 120.

[0063] It will be recognized that the “power supply 130” as used herein may be a power supply fixedly connected to the lighting assembly 120, or a power supply detachably connected to the lighting assembly 120 (for example, the power supply is an external power supply electrically connected to the lighting assembly by wires). For example, the power supply may include a battery.

[0064] As shown in Figure 4, the housing component 110 is provided with a power supply compartment 111 for housing the power supply 12 and a cover 112 for closing the power supply compartment 111.

[0065] In some embodiments of this disclosure, the cover 112 may seal the power supply 130 within the power supply compartment.

[0066] Since medical devices may come into direct contact with bodily fluids (such as blood) or cleaning fluids during use, the lighting device 100 may also come into direct contact with bodily fluids (such as blood) or cleaning fluids. By enclosing the power supply 130 in a sealed power compartment 111, it is possible to avoid short circuits inside the lighting device 100 caused by these fluids.

[0067] In some embodiments of the present disclosure, the lighting device 100 further includes a switch 140 located in a housing component 110, the switch 140 being configured to selectively turn on and off the electrical connection between the power supply 130 and the lighting assembly 120.

[0068] By setting the above switch 140, it is possible to selectively turn the electrical connection between the power supply 130 and the lighting assembly 120 on and off while the medical device is in use.

[0069] In some embodiments of the present disclosure, the housing component 110 has a first end 112 and a second end 113 that are opposite to each other, a light guide element 123 is located adjacent to the first end 112, and a switch 140 is located adjacent to the second end 113.

[0070] To better illuminate the working position of the medical device, the end of the light guide element 123 for illumination should be as close as possible to the working position of the medical device during use, and for procedures involving deeper wounds, the end of the light guide element 123 for illumination may extend into the wound. By placing the switch 140 as far away as possible from the light guide element 123, the switch 140 can be easily operated.

[0071] In some embodiments of this disclosure, the switch 140 is a disposable switch.

[0072] To avoid the potential for infection resulting from reuse, the lighting device 100 in the embodiments of the present disclosure may, for example, be a disposable lighting device. To prevent the lighting device 100 of the present disclosure from being undesirably reused, the switch 140 may be configured as a disposable switch, that is, the switch 140 cannot be turned off again once it has been turned on, or the switch 140 cannot be turned on again once it has been turned on and then turned off.

[0073] Figure 5 is a perspective view of a lighting device according to a third embodiment of the present disclosure, and Figure 6 is an exploded assembly view of the lighting device shown in Figure 5. The lighting device 100 of the second embodiment shown in Figures 5 and 6 differs from the lighting device 100 of the first embodiment shown in Figures 3 and 4 in that the lighting device 100 of the second embodiment shown in Figures 5 and 6 further includes other components.

[0074] Specifically, as shown in Figures 5 and 6, the lighting device 100 further includes a disposable insulating member 150 configured to interrupt the electrical connection between the power supply 130 and the lighting assembly 120.

[0075] In the above embodiments of the present disclosure, the disposable insulating member 150 described above can function as a switch, that is, by removing the insulating member 150, an electrical connection between the power supply 130 and the lighting assembly 120 can be established, and thus the lighting device 100 can be used for lighting. Since the insulating member 150 is disposable, that is, once the insulating member 150 is removed from the lighting device 100, the insulating member 150 cannot be reused to interrupt the electrical connection between the power supply 130 and the lighting assembly 120, and the insulating member 150 further prevents the lighting device 100 from being reused.

[0076] If the lighting device 100 itself is provided with a switch 140 for selectively turning on and off the electrical connection between the power supply 130 and the lighting assembly 120 (such as in the embodiments shown in Figures 3 and 4), the insulating member 150 may be configured to prevent the lighting device 100 from inadvertently touching the switch 140 during transport or use, thereby preventing the establishment of an electrical connection between the power supply 130 and the lighting assembly 120. In other words, before the disposable insulating member 150 is removed, the electrical connection between the power supply 130 and the lighting assembly 120 is further interrupted by the insulating member 150, even if the switch is on.

[0077] In some embodiments of this disclosure, the housing component 110 includes a connector (not shown) for detachably securing the lighting device 100 to a medical device.

[0078] The embodiments described above in this disclosure are particularly applicable to reusable medical devices. That is, the lighting device 100 can be removed from the medical device after use to facilitate tasks such as disinfecting the medical device.

[0079] According to another aspect of the present disclosure, some embodiments of the present disclosure provide a medical device kit comprising a medical device and a lighting device 100 according to any of the embodiments described above.

[0080] In the medical device kit of the above-described embodiment of the present disclosure, the lighting device 100 may be fixed to the medical device, the lighting device 100 and the medical device may be positioned separately from each other, and it should be understood that the lighting device 100 is fixed to the medical device only when the medical device is in use.

[0081] Figure 7 shows a perspective view of the illumination device 100 according to the present disclosure connected to a medical instrument 200. Figure 8 shows a perspective view of the illumination device 100 according to the present disclosure connected to a further medical instrument 200. In the embodiments shown in Figures 7 and 8, a portion of the medical instrument 200 is housed within a channel of the illumination device 100. In the embodiment shown in Figure 7, the medical instrument 200 may be various types of surgical scalpels. In the embodiment shown in Figure 8, the medical instrument 200 may be various types of tubes, such as irrigation tubes, suction tubes, etc.

[0082] The lighting device 100 is configured to illuminate the operating position of the medical device 200 so that the operator of the medical device 200 can clearly see the operating position. Therefore, exemplary, the lighting device 100 is positioned close to the operating position of the medical device 200 to better illuminate the operating position of the medical device 200. Since the aforementioned portion of the medical device 200 is housed within the channel of the lighting device 100, certain components of the medical device 200 can be prevented from obstructing the light emitted by the lighting device 100, while at the same time providing 360-degree omnidirectional illumination around the medical device 200.

[0083] In some embodiments of this disclosure, the lighting device 100 is detachably attached to the medical device 200.

[0084] As described above, the embodiments of this disclosure are particularly applicable to a reusable medical device 200. That is, the lighting device 100 can be removed from the medical device 200 after it has been used to facilitate tasks such as disinfecting the medical device 200.

[0085] In some embodiments of this disclosure, as shown in Figure 7, the medical device 200 includes a handle 210, and the lighting device 100 is detachably connected to the handle 210.

[0086] The embodiments described above in this disclosure are particularly applicable to various types of ultrasonic medical instruments, such as ultrasonic surgical scalpels. An ultrasonic medical instrument includes an excitation source (such as an ultrasonic transducer which can be used as a handle for the ultrasonic medical instrument) and an operating component (configured to amplify vibrations generated by the excitation source for surgical purposes). By fixing the illumination device 100 to the handle 210, it is possible to prevent the illumination device 100 from affecting the operation of the operating component of the ultrasonic medical instrument, and also to prevent vibrations of the operating component from affecting the illumination action of the illumination device 100.

[0087] In some embodiments of this disclosure, the lighting device 100 is detachably connected to the handle 210 by screw connections, snap connections, or interlocking fits.

[0088] In some embodiments of the present disclosure, the lighting device 100 is detachably attached to the medical device 200 by an interlocking fit between the portion of the medical device 200 and the channel 121 of the lighting assembly 120.

[0089] In some embodiments of this disclosure, a gap is provided between the portion of the medical device 200 and the channel 121.

[0090] The embodiments described above of this disclosure are further particularly applicable to ultrasonic medical instruments, such as various types of ultrasonic surgical scalpels. An ultrasonic medical instrument includes an excitation source (such as an ultrasonic transducer which can be used as a handle for the ultrasonic medical instrument) and an operating component (configured to amplify vibrations generated by the excitation source for surgical purposes). By providing a gap between the portion of the medical instrument 200 and the channel 121, it is possible to prevent the illumination device 100 from affecting the operation of the operating component of the ultrasonic medical instrument, and also to prevent vibrations of the operating component from affecting the illumination action of the illumination device 100.

[0091] This description provides many different embodiments or examples that may be used to carry out the disclosure. It should be understood that these various embodiments or examples are purely illustrative and are not intended in any way to limit the scope of protection of the disclosure. Based on the disclosures in this description, a person skilled in the art may come up with various modifications or substitutions. Any modifications or substitutions shall fall within the scope of protection of the disclosure. Accordingly, the scope of protection of the disclosure shall be subject to the scope set out in the claims.

Claims

1. A lighting device for medical equipment, The housing component is provided with a housing space that extends along the longitudinal axis of the housing component, A lighting assembly is provided within the aforementioned containment space and has channels extending along the longitudinal axis, A lighting device equipped with the following features.

2. The aforementioned lighting assembly Light-emitting element and A light guide element is positioned adjacent to the light-emitting element and configured to guide the light emitted from the light-emitting element to the outside of the lighting device. Equipped with, The lighting device according to claim 1, wherein the light-emitting element and the light-guiding element jointly define the channel.

3. The lighting device according to claim 2, wherein the light-emitting element is annular, the light-guiding element is cylindrical, and the light-emitting element and the light-guiding element jointly define the channel having a circular cross-section.

4. The lighting device according to claim 2 or 3, wherein the light-emitting element comprises one or more combinations of a halogen lamp, an LED emitter, or an optical fiber.

5. The lighting device according to any one of claims 2 to 4, wherein the light guide element is transparent or translucent.

6. The lighting device according to any one of claims 2 to 5, wherein the light guide element is made of one or more materials selected from polycarbonate, polyethylene terephthalate, polypropylene, and polymethyl methacrylate.

7. The lighting device according to claim 6, wherein the light guide element further comprises a light diffusing agent.

8. The lighting device according to any one of claims 2 to 7, wherein the light guide element extends by a predetermined distance from the housing space.

9. The lighting device according to any one of claims 1 to 8, further comprising a power supply electrically connected to the lighting assembly.

10. The lighting device according to claim 9, wherein a power supply compartment for housing the power supply and a cover for closing the power supply compartment are provided in the housing component.

11. The lighting device according to claim 10, wherein the cover seals the power supply within the power supply compartment.

12. The lighting device according to any one of claims 9 to 11, further comprising a switch disposed in the housing component, wherein the switch is configured to selectively turn on and off the electrical connection between the power supply and the lighting assembly.

13. The lighting device is the lighting device according to any one of claims 2 to 8, wherein the housing component has a first end and a second end that are opposite to each other, the light guide element is arranged adjacent to the first end, and the switch is arranged adjacent to the second end, according to claim 12.

14. The lighting device according to claim 12 or 13, wherein the switch is a disposable switch.

15. The lighting device according to any one of claims 10 to 14, further comprising a disposable insulating member configured to interrupt the electrical connection between the power supply and the lighting assembly.

16. The lighting device according to any one of claims 1 to 14, wherein the housing component comprises a connecting portion for detachably fixing the lighting device to the medical device.

17. Medical devices and A lighting device according to any one of claims 1 to 16, A medical device kit equipped with the necessary components.

18. The medical device kit according to claim 17, wherein a portion of the medical device is housed within a channel of a lighting assembly.

19. The medical device kit according to claim 18, wherein the lighting device is detachably fixed to the medical device.

20. The medical device kit according to claim 18 or 19, wherein the medical device comprises a handle, and the lighting device is detachably connected to the handle.

21. The medical device kit according to claim 20, wherein the lighting device is detachably connected to the handle by screw connection, snap connection, or interlocking fit.

22. The medical device kit according to any one of claims 18 to 21, wherein the lighting device is detachably fixed to the medical device by a tight fit between the part of the medical device and the channel of the lighting assembly.

23. A medical device kit according to any one of claims 20 to 22, wherein a gap is provided between the part of the medical device and the channel.