Debridement device for sinus tract type wound surface

Abstract

A debridement device for a sinus tract type wound relates to the technical field of debridement and comprises an operating handle, a curette, a scraper and a lighting module, the operating handle is provided with a first end and a second end in the length direction of the operating handle, the curette is detachably mounted at the first end, and the curette is provided with an identification part for measuring the depth of a sinus tract to be treated; the scraper is mounted at the second end; the lighting module is installed on the operating handle and used for emitting light beams to the sinus tract to be processed. Due to the design of the debridement device, the operation difficulty can be reduced, the operation efficiency can be improved, the debridement view can be enhanced, the debridement accuracy is improved, and time and labor are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of debridement, and in particular to a device for debridement of sinus wounds. Background Art

[0002] A sinus tract is a potential blind tube that forms when infected and necrotic tissue is excreted through the body's surface. It opens onto the body's surface and doesn't communicate with any hollow internal organs. It can occur in soft tissue, fat, muscle, or even bone. Common examples include poor drainage from infected abdominal incisions or foreign matter left in the incision; chronic sinus tracts caused by bone necrosis due to fractures or other causes; and chronic sinus tracts caused by foreign matter left after trauma or surgery.

[0003] Sinus (cavity) wounds are a morphological type of chronic wound. Deep tissue sinuses are common in various skin and soft tissue injuries, such as trauma, burns, pressure sores, diabetic foot, and difficult-to-heal postoperative incisions. Sinus wounds are complex in their morphology, varying in depth and location, and their shapes vary, often curving into various configurations within the tissue.

[0004] The inventors discovered during their research that the existing devices for debridement of sinus wounds have at least the following disadvantages:

[0005] When using existing sinus tract wound debridement devices, different surgical instruments need to be replaced according to the sinus tract wound type. At the same time, some sinus tract wounds are relatively vague, making accurate operation difficult and time-consuming and labor-intensive. Summary of the Invention

[0006] The objectives of the present invention include, for example, providing a device for debridement of sinus-type wounds, which can reduce operational difficulty, improve operational efficiency, enhance the debridement field of view, improve debridement accuracy, and save time and effort.

[0007] The embodiments of the present invention can be implemented as follows:

[0008] In a first aspect, the present invention provides a device for debridement of sinus tract wounds, comprising an operating handle, a curette, a scraper, and a lighting module, wherein:

[0009] The operating handle has a first end and a second end in its length direction. The curette is detachably mounted on the first end, and is provided with an identification portion for measuring the depth of the sinus to be treated; the scraper is mounted on the second end; the lighting module is mounted on the operating handle, and the lighting module is used to direct a light beam toward the sinus to be treated.

[0010] In an optional embodiment, a threaded hole is provided on the end surface where the first end is located, and the curette is threadedly engaged with the threaded hole.

[0011] Based on the above solution, the curette and the operating handle are detachably connected by a threaded connection, which has a simple structure, is easy to manufacture, and is easy to assemble and disassemble, and is flexible and convenient to operate. In addition, the threaded connection structure has a self-locking function, so the curette and the operating handle are not easily loosened after being connected, making it easy to use.

[0012] In an optional embodiment, the scraper includes a debridement body and a connecting column, one end of the connecting column is fixed to an end surface of the debridement body, the connecting column is threadedly engaged with the threaded hole, and the outer peripheral surface of the debridement body is smoothly connected to the outer peripheral surface of the operating handle.

[0013] Based on the above solution, the connection with the operating handle is achieved by inserting the connecting column into the threaded hole, and the surface of the debridement body is smoothly connected to the surface of the operating handle, so that no steps or suspended areas are formed at the connection position of the debridement body and the operating handle. It is less likely to scratch the tissue during the debridement process, and the operation is safer.

[0014] In an optional embodiment, the identification portion includes a plurality of annular identification grooves, and the plurality of annular identification grooves are all provided on the outer peripheral surface of the debridement body and are arranged at intervals in the longitudinal direction of the debridement body.

[0015] Based on the above solution, the annular identification groove is designed around the debridement body. During the operation, the user can observe the annular identification groove from different directions, avoiding the situation where the identification part is blocked, reducing the difficulty of judging the depth of the curette inserted into the sinus, and making observation more convenient.

[0016] In an optional embodiment, the lighting module is movably connected to the operating handle to adjust the propagation direction of the light beam of the lighting module.

[0017] Based on the above solution, by adjusting the position of the lighting module, the propagation direction of the light beam emitted by it can be adjusted, thereby better providing illumination for the sinus tract position, with good lighting effect and reduced difficulty in debridement.

[0018] In an optional embodiment, at least a portion of the operating handle is configured as a light-transmitting portion, a light beam propagation channel is provided inside the light-transmitting portion, and the light-transmitting portion is detachably connected to the scraper; the lighting module is embedded in the light beam propagation channel, and the light beam emitted by the lighting module can pass through the light-transmitting portion and provide illumination for the sinus to be debridement.

[0019] Based on this solution, by placing the lighting module within the beam propagation channel, the internal space of the operating handle is rationally utilized, improving the compactness of the structure and reducing the overall volume, facilitating a miniaturized design. Furthermore, since the light beam is emitted from the transparent portion, it is softer and less prone to eye fatigue.

[0020] In an optional embodiment, a focusing ring is provided in the light-transmitting portion, and the focusing ring is used to emit the light beam emitted by the lighting module from all sides of the transparent portion.

[0021] Based on the above solution, the light beam is emitted from all sides of the transparent portion, so that the light beam can better illuminate the sinus tract, thereby facilitating the user to better observe the internal conditions of the sinus tract.

[0022] In an optional embodiment, the device for debridement of sinus tract wounds further includes an angle measurer, and the operating handle is rotatably connected to the angle measurer.

[0023] Based on the above solution, when in use, the angle measuring device is kept in a fixed position, and the rotation direction and angle of the operating handle can be obtained through the angle measuring device when the operating handle is rotated, thereby recording the direction of necrotic tissue during the debridement process.

[0024] In an optional embodiment, the device for debridement of sinus-type wounds further includes a power supply and a heating wire, wherein the power supply is installed on the operating handle, the heating wire is pre-buried in the operating handle, and a portion of the heating wire extends out of the first end; the scraper is provided with a heating channel, and the portion of the heating wire extending out of the first end is inserted into the heating channel.

[0025] Based on the above scheme, during the debridement process, the power supply and the heating wire can be used to convert electrical energy into heat. After the heating wire is heated, the heat is transferred to the curette, thereby adjusting the temperature of the curette. The heated curette contacts the tissue, and the patient is more comfortable.

[0026] In an optional embodiment, the device for debridement of sinus tract wounds further includes a negative pressure suction tube, which is installed on the operating handle.

[0027] Based on the above scheme, while debridement, a negative pressure suction tube is used to promptly remove necrotic tissue and flushing fluid to maintain a clear field of vision.

[0028] The beneficial effects of the embodiments of the present invention include, for example:

[0029] In summary, the device for debridement of sinus-type wounds provided in this embodiment has a scraper and an operating handle that are arranged to be detachably connected. According to the different sinus wounds, the appropriate scraper can be replaced in advance before debridement. The operating handle can be reused, and there is no need to replace the entire debridement device, thereby reducing the cost of use. At the same time, during the debridement process, the lighting module can be used to provide illumination to the sinus to be treated, so that the user can more clearly observe the shape and internal conditions of the sinus to be treated, thereby reducing the difficulty of operation; at the same time, with the identification portion on the scraper, the depth of the sinus can be obtained in real time, so that the wound can be cleaned accurately, saving time and effort. When cleaning the sinus, the scraper on the operating handle can be used to scrape off a large area of damaged tissue, and it can also be used to apply medicine, with diversified functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of a device for debridement of a sinus wound according to an embodiment of the present application;

[0032] Figure 2 This is a partial cross-sectional schematic diagram of a device for debridement of a sinus wound according to an embodiment of the present application;

[0033] Figure 3 A cross-sectional view of a curette according to an embodiment of the present application;

[0034] Figure 4 FIG. 1 is a schematic diagram of a lighting module according to an embodiment of the present application.

[0035] icon:

[0036] 100-operating handle; 101-first end; 102-second end; 110-central cavity; 120-annular cavity; 130-negative pressure hole; 200-curette; 210-debridement body; 220-connecting column; 230-heating channel; 240-identification part; 300-scraper; 400-lighting module; 410-flexible circuit board; 420-LED lamp bead; 500-angle measuring device; 600-power supply; 700-heating wire; 800-negative pressure suction tube. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0042] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0043] Due to the diverse shapes of sinus tracts, existing technologies require different debridement devices with different tips. However, these devices are monolithic, making replacements expensive. Furthermore, debridement typically utilizes indoor lighting, which fails to provide specific illumination of the sinus tract. This results in poor visibility, making it difficult to accurately determine the debridement location, and making the procedure difficult, time-consuming, and labor-intensive.

[0044] Please refer to Figure 1-Figure 4This embodiment provides a device for debridement of sinus-type wounds, including an operating handle 100, a curette 200, a scraper 300, and a lighting module 400. The operating handle 100 has a first end 101 and a second end 102 in its length direction. The curette 200 is detachably mounted on the first end 101. The curette 200 is provided with an identification portion 240 for measuring the depth of the sinus to be treated. The scraper 300 is mounted on the second end 102. The lighting module 400 is mounted on the operating handle 100 and is used to direct a light beam toward the sinus to be treated.

[0045] As described above, the method of using the sinus wound debridement device provided in this embodiment is as follows:

[0046] The scraper 200 and the operating handle 100 are arranged to be detachably connected. According to the different sinus wound surfaces, the appropriate scraper 200 can be replaced in advance before debridement. The operating handle 100 can be reused, and there is no need to replace the entire debridement device, thereby reducing the cost of use. At the same time, during the debridement process, the lighting module 400 can be used to provide illumination to the sinus to be treated, so that the user can more clearly observe the shape and internal conditions of the sinus to be treated, thereby reducing the difficulty of operation; at the same time, in conjunction with the identification portion 240 on the scraper 200, the depth of the sinus can be obtained in real time, so that the wound surface can be cleaned accurately, saving time and effort. When cleaning the sinus, the scraper 300 on the operating handle 100 can be used to scrape off a large area of damaged tissue, and can also be used to apply medicine, with diversified functions.

[0047] The detailed structure of the device for debridement of sinus tract wounds according to the embodiment of the present application is described below by way of example.

[0048] In this embodiment, the optional device for debridement of sinus-type wounds includes an operating handle 100, a scraper 200, a blade 300, a lighting module 400, an angle measurer 500, a power supply 600, a heating wire 700, and a negative pressure suction tube 800. The scraper 200 is detachably connected to one end of the operating handle 100, so that the corresponding scraper 200 can be replaced according to the shape of the sinus. The blade 300 is installed at the other end of the operating handle 100. The lighting module 400 is installed on the operating handle 100, which can provide illumination for the sinus to be treated and provide a better debridement field of view. The operating handle 100 is rotatably connected to the angle measurer 500, and the angle measurer 500 can obtain the rotation direction of the operating handle 100, thereby recording the direction of necrotic tissue during the debridement process. The power supply 600 and the heating wire 700 are both fixed to the operating handle 100. The heating wire 700 can be inserted into the curette 200, thereby converting the electrical energy of the power supply 600 into heat, heating the curette 200, and adjusting the temperature of the curette 200. The negative pressure suction tube 800 is installed on the operating handle 100. The negative pressure suction tube 800 can be integrated into the operating handle 100. The front end of the negative pressure suction tube 800 can be close to the curette 200, and the rear end can be connected to a negative pressure pump. After the negative pressure pump is started, negative pressure is generated inside the negative pressure suction tube 800. Necrotic tissue and irrigation fluid generated during the debridement process can be discharged through the negative pressure suction tube 800 to maintain a clear field of vision.

[0049] In this embodiment, optionally, the operating handle 100 is roughly an elongated piece, and the operating handle 100 has a first end 101 and a second end 102 in its length direction. The operating handle 100 is provided with a central cavity 110 and an annular cavity 120 that are independent of each other, and the annular cavity 120 surrounds the central cavity 110. The central cavity 110 passes through the first end 101 and the second end 102 of the operating handle 100, that is, one end of the central cavity 110 is located at the end face where the first end 101 is located, and the other end is located at the end face where the second end 102 is located. One end of the annular cavity 120 is spaced apart from the first end 101 of the operating handle 100, and the other end of the annular cavity 120 extends to the end face where the second end 102 is located. The portion of the annular cavity 120 near the first end 101 is provided as a light-transmitting portion, or in some embodiments, the operating handle 100 as a whole is provided as a light-transmitting portion, and the light-transmitting portion can allow light to pass through. At the same time, an internal thread is provided in the portion of the central cavity 110 near the first end 101 to form a threaded hole.

[0050] It should be understood that the negative pressure suction tube 800 can be inserted into the central cavity 110, and multiple negative pressure holes 130 communicating with the central cavity 110 can be provided on the peripheral wall of the operating handle 100. The multiple negative pressure holes 130 are arranged at intervals around the axis of the operating handle 100. The negative pressure holes 130 are designed to be located near the end of the operating handle 100 connected to the curette 200. During debridement, necrotic tissue and the like can be sucked out through the negative pressure holes 130. Since the negative pressure holes 130 are distributed around the operating handle 100, the suction area is large and the suction effect is good.

[0051] In this embodiment, the scraper 200 optionally includes a debridement body 210 and a connecting post 220. One end of the connecting post 220 is fixed to one end face of the debridement body 210. The outer peripheral surface of the connecting post 220 is provided with an external thread. The external thread of the connecting post 220 is screwed into the threaded hole, and the outer peripheral surface of the debridement body 210 is smoothly connected to the outer peripheral surface of the operating handle 100. The connection with the operating handle 100 is achieved by inserting the connecting post 220 into the threaded hole, and the surface of the debridement body 210 is smoothly connected to the surface of the operating handle 100, so that no step or hanging area is formed at the connection position between the debridement body 210 and the operating handle 100, and it is less likely to scratch the tissue during the debridement process, and the operation is safer.

[0052] It should be understood that the debridement body 210 and the connecting column 220 can be provided as an integrated structure, which has high structural strength and long service life.

[0053] Optionally, a heating channel 230 is provided on the end surface of the connecting column 220 away from the debridement body 210 . When the connecting column 220 is threadedly engaged with the threaded hole, the heating channel 230 is connected to the central cavity 110 .

[0054] In addition, a marking portion 240 may be provided on the outer circumferential surface of the debridement body 210. The marking portion 240 may include an annular marking groove. A plurality of annular marking grooves are provided on the outer circumferential surface of the debridement body 210 and are spaced apart in the longitudinal direction of the debridement body 210. By providing the marking portion 240, the insertion depth of the curette 200 into the sinus tract can be intuitively determined during debridement. Moreover, the marking portion 240 is provided as an annular marking groove surrounding the debridement body 210. During operation, the user can observe the annular marking groove from different directions, thereby preventing the marking portion 240 from being obscured, reducing the difficulty in determining the insertion depth of the curette 200 into the sinus tract, and making observation more convenient.

[0055] At the same time, in order to further improve the recognition, a reflective layer can be filled in the annular marking groove. During debridement, the reflective layer can reflect light, making it easier for users to obtain the position of the annular marking groove and accurately obtain the depth of the sinus tract.

[0056] In this embodiment, optionally, a scraper 300 is mounted on the second end 102 of the operating handle 100. The scraper 300 can be designed to be detachably connected to the operating handle 100. The scraper 300 can block the ports of the central cavity 110 and the annular cavity 120 away from the first end 101. By arranging the scraper 300 to be detachably connected to the operating handle 100, the scraper 300 can be replaced after use, saving costs.

[0057] In actual use, the scraper 300 can be used to scrape off a large area of damaged tissue, and can also be used to apply medicine. It has diverse functions and does not require additional scraping devices, thereby reducing operational difficulty and saving costs.

[0058] It should be understood that the scraper 300 can be threadedly connected to the operating handle 100, which is a simple connection method and easy to assemble and disassemble.

[0059] In addition, in some embodiments, the scraper 300 is designed to be rotatably connected to the operating handle 100, and a receiving groove is provided on the outer peripheral wall of the operating handle 100. When the scraper 300 rotates, the blade of the scraper 300 can be hidden in the receiving groove. In this way, when using the scraper 200 to perform sinus debridement, the scraper 300 is not likely to scratch the user, and operational accidents are not likely to occur, which is safer and more reliable.

[0060] In this embodiment, optionally, the lighting module 400 includes a flexible circuit board 410 and a plurality of LED lamp beads 420. The flexible circuit board 410 is wound into a ring shape and installed in the annular cavity 120. The flexible circuit board 410 is arranged around the central cavity 110, and the plurality of LED lamp beads 420 are all fixed on the outer surface of the flexible circuit board 410. The light emitted by the plurality of LED lamp beads 420 can be emitted from the light-transmitting portion, that is, from the four sides of the operating handle 100, and can illuminate the four sides of the scraper 200, thereby providing the user with a better field of view.

[0061] In order to improve the lighting effect, a focusing plate can be provided in the annular cavity 120 , and the focusing plate can direct the light beams emitted by the LED lamp beads 420 toward the surroundings of the transparent portion, thereby improving the brightness.

[0062] In some embodiments, the lighting module 400 can optionally be mounted directly on the outside of the operating handle 100. The lighting module 400 can be movably connected to the operating handle 100, thereby adjusting the angle of the light beam emitted by the lighting module 400 as needed to better illuminate the sinus tract. For example, the lighting module 400 can be slidably connected to the operating handle 100, or the lighting module 400 can be rotatably connected to the operating handle 100, providing various adjustment methods and flexibility.

[0063] In this embodiment, optionally, the angle measurer 500 can be set as an angle measurement plate, and the operating handle 100 can be rotatably mounted on the angle measurement plate. When in use, the angle measurement plate can be held, and when the operating handle 100 is rotated, the angle and direction of the rotation of the operating handle 100 can be clearly known, thereby recording the direction of the necrotic tissue during the debridement process.

[0064] In this embodiment, optionally, the power supply 600 is fixed in the central cavity 110, the heating wire 700 is provided in the central cavity 110, and a portion of the heating wire 700 extends out of the central cavity 110 and can be plugged into the heating channel 230. During the debridement process, the power supply 600 and the heating wire can be used in conjunction with the heating wire to convert electrical energy into heat. After the heating wire is heated, the heat is transferred to the curette 200, thereby adjusting the temperature of the curette 200. The heated curette 200 contacts the tissue, which improves the patient's comfort.

[0065] It should be understood that the lighting module 400 can be independently configured with a battery, or be electrically connected to the power supply 600 via a wire and powered by the power supply 600.

[0066] The debridement device for sinus-type wounds provided in this embodiment can replace the appropriate scraper 200 in advance before debridement according to the shape of the sinus wound. The operating handle 100 can be reused, and there is no need to replace the entire debridement device, thereby reducing the cost of use. At the same time, during the debridement process, the lighting module 400 can provide light to the sinus to be treated, and the user can more clearly observe the shape and internal conditions of the sinus to be treated, thereby reducing the difficulty of operation; at the same time, in conjunction with the identification portion 240 on the scraper 200, the depth of the sinus can be obtained in real time, so that the wound can be cleaned accurately, saving time and effort. When cleaning the sinus, the scraper 300 on the operating handle 100 can be used to scrape off a large area of damaged tissue, and can also be used to apply medicine, with diversified functions.

[0067] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A device for debridement of sinus wounds, characterized in that: The invention comprises an operating handle (100), a curette (200), a scraper (300) and a lighting module (400), wherein: The operating handle (100) has a first end (101) and a second end (102) in its length direction; the curette (200) is detachably mounted on the first end (101); the curette (200) is provided with an identification portion (240) for measuring the depth of the sinus tract to be treated; the scraper (300) is mounted on the second end (102); and the lighting module (400) is mounted on the operating handle (100), and the lighting module (400) is used to direct a light beam toward the sinus tract to be treated.

2. The device for debridement of sinus tract wounds according to claim 1, characterized in that: A threaded hole is provided on the end surface where the first end (101) is located, and the scraper (200) is threadedly engaged with the threaded hole.

3. The device for debridement of sinus tract wounds according to claim 2, characterized in that: The scraper (200) comprises a debridement body (210) and a connecting column (220), one end of the connecting column (220) is fixed to an end surface of the debridement body (210), the connecting column (220) is threadedly engaged with the threaded hole, and the outer peripheral surface of the debridement body (210) is smoothly connected to the outer peripheral surface of the operating handle (100).

4. The device for debridement of sinus tract wounds according to claim 3, characterized in that: The identification portion (240) includes a plurality of annular identification grooves, and the plurality of annular identification grooves are all provided on the outer peripheral surface of the debridement body (210) and are arranged at intervals in the longitudinal direction of the debridement body (210).

5. The device for debridement of sinus tract wounds according to any one of claims 1 to 4, characterized in that: The lighting module (400) is movably connected to the operating handle (100) and is used to adjust the propagation direction of the light beam of the lighting module (400).

6. The device for debridement of sinus tract wounds according to any one of claims 1 to 4, characterized in that: At least a portion of the operating handle (100) is configured as a light-transmitting portion, a light beam propagation channel is provided inside the light-transmitting portion, and the light-transmitting portion is detachably connected to the scraper (200); the lighting module (400) is embedded in the light beam propagation channel, and the light beam emitted by the lighting module (400) can pass through the light-transmitting portion and provide illumination for the sinus tract to be debridement.

7. The device for debridement of sinus wounds according to claim 6, characterized in that: A focusing ring is provided in the light-transmitting portion, and the focusing ring is used to direct the light beam emitted by the lighting module (400) out from the periphery of the transparent portion.

8. The device for debridement of sinus tract wounds according to any one of claims 1 to 4, characterized in that: The device for debridement of sinus tract wounds further comprises an angle measurer (500), and the operating handle (100) is rotatably connected to the angle measurer (500).

9. The device for debridement of sinus tract wounds according to any one of claims 1 to 4, characterized in that: The device for debridement of sinus-type wounds further comprises a power supply (600) and a heating wire (700), wherein the power supply (600) is mounted on the operating handle (100), the heating wire (700) is pre-buried in the operating handle (100), and a portion of the heating wire (700) extends out of the first end (101); the scraper (200) is provided with a heating channel (230), and the portion of the heating wire (700) extending out of the first end (101) is inserted into the heating channel (230).

10. The device for debridement of sinus tract wounds according to any one of claims 1 to 4, characterized in that: The device for debridement of sinus tract wounds further comprises a negative pressure suction tube (800), and the negative pressure suction tube (800) is mounted on the operating handle (100).

Images