Debridement device for diabetic foot in endocrinology department

By combining the spiral cutting blade assembly with the airflow auxiliary component, the problem of large tissue blockage is solved, and the smooth flow of negative pressure airflow and efficient operation of the debridement device are achieved, adapting to the fragmentation needs of tissues of different shapes.

CN121102605AInactive Publication Date: 2025-12-12HEFEI NO 3 PEOPLES HOSPITAL
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Patent Information

Application Number
CN202511600982.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2025-12-12
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing technologies struggle to completely break down large tissues, which can easily clog the suction tubing and affect the normal operation of the equipment.

Method used

An endocrinology-specific debridement device for diabetic foot ulcers was designed. It combines a spiral cutting blade assembly with an airflow-assisted component, simultaneously performing high-pressure water flow cutting and negative pressure adsorption. The spiral cutting blade assembly is equidistantly distributed along the central axis, and the conical cutting blade design, together with the airflow-assisted component, ensures smooth flow of negative pressure airflow and avoids blockage.

Benefits of technology

It effectively avoids clogging of the suction tube by large pieces of tissue during the flow process, ensures smooth flow of negative pressure airflow, improves the synergistic efficiency of debridement and suction, maintains a clear view of the wound surface, and adapts to the fragmentation needs of tissues of different shapes.

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Abstract

The invention relates to the technical field of debridement devices, in particular to a debridement device for diabetic feet in the endocrinology department, which comprises a debridement gun body, an operating handle is mounted at the end of the debridement gun body, the debridement gun body is provided with a pulse assembly, the pulse assembly comprises a pulse tube fixedly mounted at the front end of the debridement gun body, and the pulse tube is sleeved with a suction tube. According to the negative pressure suction device, the situation that the suction hose is blocked by large tissue in the circulation process is avoided, tissue residues are reduced, the negative pressure cavity is vertically arranged, a three-section type airflow path is added, it is ensured that negative pressure airflow circulates smoothly, the material suction efficiency is improved, the wound view is kept clear, and the blocking problem is thoroughly solved; the debridement and material suction synergistic efficiency is improved, meanwhile, smooth proceeding of material suction work is ensured, gradient crushing is adopted, crushing is more thorough, the crushing strength is gradually improved along with material movement, shape changes from large blocks to small blocks to fine materials step by step are completely adapted, and the problem that the efficiency is low due to one-time cutting of equal-diameter blades is solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of debridement devices, in particular to a debridement device for diabetic foot in an endocrinology department. BACKGROUND

[0002] The debridement device for diabetic foot in an endocrinology department is a minimally invasive medical device specially designed for wound cleaning of diabetic foot patients. For example, a handheld pulse gun debridement method is used, which cuts and peels the tissue by using pulse high-pressure fluid to remove the necrotic soft tissue of the diabetic foot. In order to improve the debridement cleanliness and more efficiently remove the generated waste liquid and soft tissue, a pulse removal combined with negative pressure adsorption method is used for debridement.

[0003] In actual use, in order to facilitate the operator to hold the pulse gun and move it for debridement, the pulse gun is usually connected to the pulse device through a connecting hose. During the debridement negative pressure adsorption process, since the removed soft tissue has different forms, the suction hose is easily blocked by large pieces of tissue. Although the pulse water flow can have a certain impact on the necrotic tissue, it is often difficult to completely break up the large pieces of tissue. When these large pieces of tissue are flushed to the suction hose by the flushing liquid, due to the limited diameter of the suction hose, it is easy to cause blockage, affecting the normal use of the device. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a debridement device for diabetic foot in an endocrinology department, which solves the technical problem that the prior art is often difficult to completely break up large pieces of tissue, which easily causes blockage of the hose and affects the normal use of the device. The present application avoids blockage of the suction hose by large pieces of tissue during the flow process, reduces tissue residue, ensures smooth flow of negative pressure airflow, improves the cooperation efficiency of debridement and suction, and ensures smooth operation of the suction work.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a debridement device for diabetic foot in an endocrinology department, comprising a debridement gun body, an operating handle is installed at the end of the debridement gun body, the debridement gun body is provided with a pulse assembly, the pulse assembly comprises a pulse pipe fixedly installed at the front end of the debridement gun body, the pulse pipe is sleeved with a suction pipe, a negative pressure cavity is formed between the pulse pipe and the suction pipe, a anti-blocking assembly is arranged in the negative pressure cavity, the pulse pipe is sleeved with a central shaft, the anti-blocking assembly comprises a spiral cutting knife group distributed equidistantly along the central shaft in the axial direction, and an airflow auxiliary assembly is arranged between the two adjacent spiral cutting knife groups. The central shaft is fixedly installed with a support ring at both ends, which is tightly connected with the pulse pipe, and the inside of the debridement gun body is provided with a power assembly for driving the spiral cutting knife group and the airflow auxiliary assembly to work synchronously.

[0006] Preferably, the spiral cutting knife group comprises multiple sets of cutting blades for cutting soft tissue, and the cutting blades are provided with hollow holes and are connected with the center shaft through connecting ribs.

[0007] Preferably, the multiple sets of spiral cutting knife groups form a conical structure along the center direction of the center shaft, and the diameter of the cutting blade near the outlet end of the pulse pipe is only one third of the inner diameter of the negative pressure cavity, and the diameter of the cutting blade near the inlet end of the suction pipe is two thirds of the inner diameter of the negative pressure cavity.

[0008] Preferably, each set of spiral cutting knife groups adopts a spaced cutting blade structure, and the rotation plane is perpendicular to the center shaft, and a gap is formed between each cutting blade.

[0009] Preferably, the airflow auxiliary assembly comprises a connecting piece coaxially arranged with the spiral cutting knife group and fixedly sleeved on the outer peripheral wall of the center shaft, and the end of the connecting piece is fixedly provided with guide vanes, and multiple sets of the guide vanes are arranged at an angle with the center shaft.

[0010] Preferably, the front end of the spiral cutting knife group near the outlet of the pulse pipe and the rear end of the spiral cutting knife group near the inlet of the suction pipe are each reserved without a blade body, and form an airflow path of the flow-through space.

[0011] Preferably, the power assembly comprises two drive plates fixedly installed on the outer walls of the center shaft, and the inner ends of the two drive plates are fixedly provided with an inner receiving ring rotatably connected with the inner wall of the suction pipe, and the outer peripheral wall of the inner receiving ring is fixedly provided with a connecting ring penetrating through the suction pipe and fixedly provided with an outer drive gear ring.

[0012] Preferably, one side of the outer drive gear ring is engaged with a drive gear, and the inside of the debridement gun body is fixedly provided with a drive motor for driving the rotation of the drive gear.

[0013] Preferably, the pulse assembly further comprises a pulse head fixedly installed at the outlet end of the pulse pipe, and the inlet end of the pulse pipe is connected with a pulse hose at the operating handle through the inner wall of the suction pipe, the vertical end of the inlet end of the suction pipe is connected with a suction hose of the debridement gun body, and the inlet end of the suction pipe is provided with a suction cover.

[0014] Through the above technical scheme, the present application provides a debridement device for diabetic foot in an endocrinology department, which has at least the following beneficial effects: 1. The application synchronizes high-pressure water flow cutting and negative pressure adsorption by integrating the pulse tube with the suction tube, and timely cuts the inhaled tissue through the internally arranged spiral cutting knife group, avoiding the blockage of the suction hose by large pieces of tissue during the flow process; the suction cover is designed in a horn shape to expand the adsorption range and reduce tissue residues; the vertical negative pressure cavity combined with a three-section airflow path ensures smooth flow of negative pressure airflow, improves the material suction efficiency, keeps the wound field clear, completely solves the blockage problem, and improves the synergy efficiency of debridement and material suction while ensuring the smooth progress of material suction work.

[0015] 2. The application realizes gradient crushing from rough cutting to fine cutting through the tapered spiral cutting knife group with a small diameter at the front end and a large diameter at the rear end; large pieces of tissue first enter the large channel at the front end without obstacles, and are then gradually cut by the rear end blades; the crushing is more thorough, and the crushing intensity gradually upgrades with the movement of the material; the application completely adapts to the morphological changes from large pieces to small pieces to fine materials, avoids the low-efficiency problem of one-size-fits-all cutting by equal-diameter blades, avoids blockage of the suction hose by large pieces of tissue, and further optimizes the cutting effect by cooperating with the cutting blade hollow hole and interval structure to reduce tissue accumulation and further reduce the risk of blockage.

[0016] 3. The application generates boost airflow in the direction of the suction hose by synchronously rotating the inclined guide vanes of the airflow auxiliary assembly with the central shaft, accelerates the movement of broken tissue and waste liquid, and blows away small tissue attached to the surface of the blade; the cutting blade hollow hole and interval gap further ensure airflow circulation and avoid airflow interception, thereby improving the utilization rate of negative pressure.

[0017] 4. The application forms a three-section airflow path of a front-end inflow section plus a middle cutting section plus a rear-end outflow section by reserving no-blade spaces at the front end and the rear end of the spiral cutting knife group; the two cutting blade spaces can avoid the cutting blade from completely occupying the airflow channel, thereby ensuring sufficient circulation space for airflow before and after cutting.

[0018] 5. The application expands the edge of the suction cover outward into a horn-shaped design structure; the horn mouth can expand the negative pressure adsorption range, especially covering the fine tissue at the edge of the cutting blade; the suction cover can restrict the tissue at the inlet of the suction tube and guide it to move inside the suction tube, thereby increasing the negative pressure adsorption range. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0020] In the drawings: Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2This is a cross-sectional view of one side of the present invention; Figure 3 This is a schematic diagram of the internal structure of the wound cleaning gun and suction tube of the present invention; Figure 4 This is a cross-sectional view showing the connection between the central axis and the pulse tube in this invention; Figure 5 For the present invention Figure 4 Enlarged view of section A in the middle; Figure 6 This is a schematic diagram of the internal structure of the suction tube of the present invention; Figure 7 This is a schematic diagram showing the installation positions of the spiral cutting blade assembly and the airflow auxiliary component of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of section B; Figure 9 This is a schematic diagram of the structure of the multi-group spiral cutting blade assembly of the present invention.

[0021] In the diagram: 1. Debridement gun body; 101. Operating handle; 2. Pulse assembly; 201. Pulse tube; 202. Pulse head; 203. Pulse hose; 3. Suction tube; 301. Negative pressure chamber; 302. Suction cover; 303. Suction hose; 4. Anti-clogging component; 401. Spiral cutting blade assembly; 4011. Cutting blade; 4012. Hole; 4013. Connecting rib; 402. Airflow auxiliary component; 4021. Guide vane; 4022. Connector; 5. Central shaft; 501. Support ring; 502. Power assembly; 5021. Drive plate; 5022. Inner bearing ring; 5023. Connecting ring; 5024. Outer drive gear ring; 5025. Drive gear; 5026. Drive motor. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 Addressing the current technical problem that large tissue fragments are often difficult to break down completely, easily causing blockages in the tubing and affecting normal device operation, this embodiment provides a debridement device for diabetic foot ulcers in endocrinology. This device avoids blockages caused by larger tissue fragments during flow, reduces tissue residue, and ensures smooth negative pressure airflow. Please refer to... Figure 1 - Figure 5This endocrinology department's diabetic foot debridement device includes a debridement gun body 1. An operating handle 101 is installed at the end of the debridement gun body 1, and a control button is provided on the operating handle 101 for convenient operation of the debridement device. The debridement gun body 1 is equipped with a pulse assembly 2, which includes a pulse tube 201 fixedly installed at the front end of the debridement gun body 1. A suction tube 3 is sleeved on the pulse tube 201, forming a negative pressure cavity 301 between the pulse tube 201 and the suction tube 3. An anti-clogging component 4 is installed within the negative pressure cavity 301. A central shaft 5 is sleeved on the pulse tube 201. The anti-clogging component 4 includes components along the central shaft... The device consists of five axially equidistant spiral cutting blade groups 401, with an airflow assist component 402 positioned between adjacent spiral cutting blade groups 401. During use, the pulse tube 201, suction tube 3, and debridement gun body 1 are integrated. The pulse head 202 at the front end of the pulse tube 201 is aimed at the affected area of ​​the patient's foot, and a high-pressure water jet is sprayed onto the affected area. The high-pressure water jet cuts and removes the necrotic soft tissue of the patient, while the suction tube 3 simultaneously absorbs the cleaned soft tissue, removing waste fluid and soft tissue debris to avoid contaminant residue, maintain a clear view of the wound, and facilitate precise operation.

[0024] To improve the cleanliness of wound cleaning and more efficiently remove waste fluid and soft tissue, a suction tube 3 is connected to the pulse tube 201, allowing the suction tube 3 to work synchronously with the pulse tube 201. This allows the suction tube 3 to draw soft tissue and waste fluid into its interior and then discharge it through the suction hose 303 at its end. However, this creates a situation where, under negative pressure, larger pieces of soft tissue entering the suction hose 303 can easily clog it, making it difficult for the suction tube 3 to remove waste fluid and soft tissue generated during the wound cleaning process. To solve this problem, ... Figure 2 - Figure 9 As shown, support rings 501 that are tightly connected to pulse tubes 201 are fixedly installed at both ends of the central shaft 5, and a power component 502 that drives the spiral cutting blade assembly 401 and the airflow auxiliary component 402 to work synchronously is provided inside the debridement gun body 1. By setting an anti-blocking component 4 inside the suction tube 3, it can cut large pieces of soft tissue that are sucked in to a certain extent, and avoid large pieces of soft tissue from blocking the suction tube 303 and affecting the normal use of the equipment.

[0025] Example 2 Based on Example 1, such as Figure 7 - Figure 9As shown, the spiral cutting blade assembly 401 includes multiple sets of cutting blades 4011 for cutting debridement soft tissue. Each cutting blade 4011 has a perforated hole 4012, which occupies half of the total area of ​​the cutting blades 4011. This design does not affect the blade strength but allows airflow and fragmented tissue to directly enter the negative pressure channel through the perforated hole 4012, preventing the cutting blades 4011 from obstructing airflow. This reduces the weight of the cutting blades 4011 and lowers the frictional resistance to the negative pressure chamber 301 during rotation. Furthermore, it allows finely shredded tissue to pass through the perforated hole 4012. 2. The suction tube 3 is quickly discharged and discharged through the suction hose 303, reducing the accumulation of tissue on the surface of the cutting blade 4011 and avoiding secondary blockage. A connecting rib 4013 is installed between the cutting blade 4011 and the central shaft 5. Multiple sets of spiral cutting blades 401 are equidistantly arranged along the axial direction of the central shaft 5. During the cutting of large soft tissue, the power component 502 works, driving multiple sets of cutting blades 4011 to rotate and cut the large soft tissue, preventing it from entering the suction hose 303 and causing blockage, and ensuring the smooth flow of the negative pressure suction process.

[0026] To ensure proper negative pressure airflow, the soft tissue being cleaned is sucked in and removed, such as... Figure 6 - Figure 9 As shown, multiple sets of spiral cutting blades 401 form a conical structure along the central axis 5. The diameter of the cutting blade 4011 near the outlet of the pulse tube 201 is only one-third of the inner diameter of the negative pressure cavity 301, and the diameter of the cutting blade 4011 near the inlet of the suction tube 3 is two-thirds of the inner diameter of the negative pressure cavity 301. By designing the multiple sets of cutting blades 4011 into a conical structure with a small front diameter and a large rear diameter, this layout can guide the airflow and fragmented tissue to flow towards the inlet of the suction hose 303 when the cutting blades 4011 rotate. At the same time, it can prevent the cutting blades 4011 from completely occupying the cavity space, reserve a side airflow channel, ensure normal flow of negative pressure airflow, and improve material suction efficiency.

[0027] The key to this process is to ensure the quality of soft tissue cutting and to ensure the normal flow of soft tissue and waste liquid inside the suction tube 3 and suction hose 303. When using equal-diameter cutting blades 4011, the cavity spacing is uniform. If the diameter of the cutting blades 4011 is small and the spacing is large, the fine cutting will be insufficient. If the diameter of the cutting blades 4011 is large, large pieces of material are easy to get stuck at the inlet and cannot enter the cutting area, resulting in inlet blockage or discontinuous cutting. The reserved channel between the small-diameter cutting blades 4011 at the front end and the suction tube 3 is large, making the inlet channel of the suction tube 3 spacious. Large pieces of soft tissue can directly enter the front cutting area without being blocked by the narrow channel, achieving unobstructed feeding and solving the pain point that large pieces cannot enter with equal-diameter blades.

[0028] To better cut soft tissue and improve cutting efficiency, a small-diameter cutting blade 4011 is used for coarse cutting in the large space at the front end of the suction pipe 3 inlet. For large pieces of material, the cutting load is small and it is not easy to jam. Then, under the guidance of negative pressure airflow, the coarsely cut soft tissue and waste liquid gradually move to the rear end. Finally, the large-diameter cutting blade 4011 at the rear end performs fine cutting. For the small pieces of material after the coarse cutting at the front end, the cutting blade 4011 has a wide coverage area and more thorough crushing. The crushing intensity gradually increases with the movement of the material, which is fully adapted to the shape change from large pieces to small pieces and then to fine materials, avoiding the inefficiency of one-cutting by equal-diameter blades.

[0029] Furthermore, such as Figure 9 As shown, each set of spiral cutting blades 401 adopts an intermittent cutting blade 4011 structure, and the rotation plane is perpendicular to the central axis 5. A gap is formed between each cutting blade 4011. Each set of spiral cutting blades 401 is composed of multiple cutting blades 4011 of the same diameter, and adopts an intermittent cutting blade 4011 structure, retaining independent cutting blades 4011. There is a certain distance between adjacent cutting blades 4011. The gap between the cutting blades 4011 can serve as an airflow channel, reducing the interception of airflow by the continuous cutting blades 4011. At the same time, the independent cutting blades 4011 can still cut and clean soft tissue by rotation.

[0030] Example 3 Based on the above embodiments, in order to further reduce the accumulation of soft tissue around the cutting blade 4011, actively assist airflow and avoid the risk of blockage, such as... Figure 1 - Figure 5 As shown, the device is also equipped with an airflow assist component 402. The airflow assist component 402 includes a connector 4022 that is coaxially arranged with the spiral cutting blade assembly 401 and fixedly sleeved on the outer peripheral wall of the central shaft 5. A guide vane 4021 is fixedly installed at the end of the connector 4022. Multiple sets of guide vanes 4021 are inclined and form an angle with the central shaft 5. By axially arranging multiple inclined guide vanes 4021 on the central blade shaft of the cutting blade 4011 and forming an angle with the central shaft 5, when the central shaft 5 drives the cutting blade 4011 to rotate, the guide vanes 4021 rotate synchronously, generating a boosting airflow towards the suction hose 303, which accelerates the movement of fragmented tissue and waste liquid towards the outlet and can also blow away the fine tissue attached to the surface of the cutting blade 4011 to prevent accumulation and blockage of the airflow.

[0031] It should be noted that, as Figure 6As shown, the front end of the spiral cutting blade assembly 401 at the outlet of the pulse tube 201 and the rear end of the spiral cutting blade assembly 401 near the inlet of the suction tube 3 each have reserved bladeless spaces, forming airflow paths for the flow space. The reserved bladeless spaces at the front and rear ends of the spiral cutting blade assembly 401 form a three-section airflow path consisting of a front inlet section, a middle cutting section, and a rear outlet section. The space between the two cutting blades 4011 can prevent the cutting blades 4011 from completely occupying the airflow channel, ensuring that the airflow has sufficient flow space before and after cutting.

[0032] Example 4 To ensure that the central shaft 5 is rotated by the power assembly 502 without obstructing the negative pressure chamber 301, such as Figure 3 - Figure 6 As shown, the two sets of power components 502 include drive plates 5021 fixedly installed on the outer walls of both sides of the central shaft 5. The two drive plates 5021 are fixedly installed at one end away from each other, with an inner bearing ring 5022 rotatably connected to the inner circumference of the suction tube 3. A connecting ring 5023 is fixedly installed on the outer circumferential wall of the inner bearing ring 5022. The connecting ring 5023 passes through the suction tube 3 and is fixedly installed with an outer drive gear ring 5024. The connecting ring 5023 connects the inner bearing ring 5022 and the outer drive gear ring 5024 located inside and outside the suction tube 3, ensuring that the outer drive gear ring 5024 can drive the inner bearing ring 5022 to rotate. At the same time, the two sets of drive plates 5021 connect the inner bearing ring 5022 to the central shaft 5.

[0033] Specifically, such as Figure 3 - Figure 6 As shown, a drive gear 5025 is meshed on one side of the outer drive gear ring 5024. A drive motor 5026 that drives the drive gear 5025 to rotate is fixedly installed inside the debridement gun body 1. When the drive motor 5026 works, it causes the outer drive gear ring 5024 to drive the inner receiving ring 5022 to rotate. Ultimately, the central shaft 5 drives multiple sets of spiral cutting blades 401 and multiple sets of airflow auxiliary components 402 to rotate simultaneously. While ensuring that the multiple sets of spiral cutting blades 401 cut the inhaled soft tissue, the multiple sets of airflow auxiliary components 402 can actively guide the airflow to prevent accumulation.

[0034] Example 5 To ensure that the cleaned soft tissue and waste fluid can smoothly enter through the inlet at the front end of suction tube 3, such as Figure 6As shown, the pulse assembly 2 also includes a pulse head 202 fixedly installed at the outlet end of the pulse tube 201. During the debridement and suction process, the pulse tube 201 and the suction tube 3 are in a stationary state. The inlet end of the pulse tube 201 passes through the inner wall of the suction tube 3 and is connected to the pulse hose 203 at the operating handle 101. One end of the pulse hose 203 is connected to the high-pressure component of the device. High-pressure water is sent into the pulse tube 201 through the high-pressure device and finally sprayed out through the pulse head 202 at the front end of the pulse tube 201 to cut and clean the necrotic tissue of the patient's foot. The vertical end of the inlet end of the suction tube 3 is connected to the suction hose 303 of the debridement gun body 1. One end of the suction hose 303 is connected to the negative pressure component of the device. Next, the air inside the suction tube 3 is extracted by the negative pressure component, forming a negative pressure channel inside. This allows the cleaned soft tissue and waste fluid to be sucked into the tube through the suction hood 302 at the front end during the debridement process, and then discharged through the suction hose 303. The negative pressure chamber 301 is vertically set to ensure smoother airflow. The suction hood 302 is installed at the inlet end of the suction tube 3. The edge of the suction hood 302 is flared outward into a trumpet shape. The trumpet opening can expand the negative pressure adsorption range, especially to cover the fine tissue fragments on the edge of the cutting blade 4011. The suction hood 302 can confine the tissue at the inlet of the suction tube 3 and guide it to move into the suction tube 3, increasing the negative pressure adsorption range.

Claims

1. A wound cleaning device for diabetic foot in endocrinology, comprising a wound cleaning gun body (1), an operating handle (101) installed at the end of the wound cleaning gun body (1), and a pulse assembly (2) provided on the wound cleaning gun body (1), characterized in that: The pulse assembly (2) includes a pulse tube (201) fixedly installed at the front end of the wound cleaning gun body (1), the pulse tube (201) is sleeved with a suction tube (3), a negative pressure cavity (301) is formed between the pulse tube (201) and the suction tube (3), an anti-blocking assembly (4) is provided in the negative pressure cavity (301), the pulse tube (201) is sleeved with a central shaft (5), the anti-blocking assembly (4) includes spiral cutting blade groups (401) equidistantly distributed along the central shaft (5), and an airflow auxiliary assembly (402) is provided between two adjacent spiral cutting blade groups (401). The central shaft (5) is fixedly installed with support rings (501) that are tightly connected to the pulse tube (201) at both ends, and the debridement gun body (1) is provided with a power component (502) that drives the spiral cutting blade assembly (401) and the airflow auxiliary component (402) to work synchronously.

2. The endocrinology foot debridement device for diabetic patients according to claim 1, characterized in that: The spiral cutting blade assembly (401) includes multiple cutting blades (4011) for cutting debridement soft tissue. The cutting blades (4011) have hollow holes (4012), and connecting ribs (4013) are installed between the cutting blades (4011) and the central shaft (5).

3. The endocrinology foot debridement device for diabetic patients according to claim 1, characterized in that: The multiple sets of spiral cutting blades (401) form a conical structure along the central axis (5), and the diameter of the cutting blade (4011) near the outlet end of the pulse tube (201) is only one-third of the inner diameter of the negative pressure cavity (301), while the diameter of the cutting blade (4011) near the inlet end of the suction tube (3) is two-thirds of the inner diameter of the negative pressure cavity (301).

4. The endocrinology foot debridement device for diabetic patients according to claim 1, characterized in that: Each set of spiral cutting blades (401) adopts an intermittent cutting blade (4011) structure, and the plane of rotation is perpendicular to the central axis (5), forming a gap between each cutting blade (4011).

5. The endocrinology foot debridement device for diabetic patients according to claim 1, characterized in that: The airflow assist component (402) includes a connector (4022) coaxially arranged with the spiral cutting blade assembly (401) and fixedly sleeved on the outer peripheral wall of the central shaft (5). The end of the connector (4022) is fixedly installed with a guide vane (4021). Multiple sets of the guide vanes (4021) are inclined and form an angle with the central shaft (5).

6. The endocrinology foot debridement device for diabetic patients according to claim 1, characterized in that: The front end of the spiral cutting blade assembly (401) near the outlet of the pulse tube (201) and the rear end of the spiral cutting blade assembly (401) near the inlet of the suction tube (3) are each reserved with bladeless space, forming an airflow path for the flow space.

7. The endocrinology foot debridement device for diabetic patients according to claim 1, characterized in that: The power assembly (502) includes drive plates (5021) fixedly installed on the outer walls of both sides of the central shaft (5). The two drive plates (5021) are fixedly installed at one end away from each other, with an inner bearing ring (5022) rotatably connected to the inner circumference of the suction tube (3). A connecting ring (5023) is fixedly installed on the outer circumference of the inner bearing ring (5022). The connecting ring (5023) passes through the suction tube (3) and is fixedly installed with an outer drive gear ring (5024).

8. The endocrinology foot debridement device for diabetic patients according to claim 7, characterized in that: The outer drive gear ring (5024) is meshed with a drive gear (5025) on one side, and a drive motor (5026) that drives the drive gear (5025) to rotate is fixedly installed inside the cleaning gun body (1).

9. The endocrinology foot debridement device for diabetic patients according to claim 1, characterized in that: The pulse assembly (2) also includes a pulse head (202) fixedly installed at the outlet end of the pulse tube (201). The inlet end of the pulse tube (201) passes through the inner wall of the suction tube (3) and is connected to the pulse hose (203) at the operating handle (101). The vertical end of the inlet end of the suction tube (3) is connected to the suction hose (303) of the wound cleaning gun body (1). The inlet end of the suction tube (3) is equipped with a suction cover (302).