Debridement device for general surgery department

By introducing a stirring and drug delivery mechanism into the general surgery debridement device, and utilizing gear meshing transmission and quantitative feeding components to achieve disinfection and safe discharge of waste liquid, the problem of existing devices being unable to effectively disinfect waste liquid has been solved, thus improving the safety and efficiency of the debridement process.

CN223787917UActive Publication Date: 2026-01-13徐卫
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Patent Information

Application Number
CN202422968069.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2026-01-13
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Existing general surgical debridement devices cannot effectively disinfect and drain waste fluid after wound cleaning, posing a risk of cross-infection.

Method used

A wound cleaning device including a stirring mechanism and a drug delivery mechanism was designed. The stirring blades stir the waste liquid through gear meshing, and disinfectant is intermittently added to the stirring tank through a quantitative feeding component to achieve the disinfection and discharge of the waste liquid.

Benefits of technology

This effectively reduces the safety hazards of waste liquid discharge, decreases the risk of cross-infection, and improves the safety and efficiency of the wound cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The debridement device for the general surgery department particularly relates to the technical field of medical equipment and comprises a shell, a debridement pool is arranged at the upper end of the shell, a stirring mechanism is arranged in the middle of an inner cavity of the shell, a medicine feeding mechanism is arranged on the left portion of the inner cavity of the shell, and a liquid storage tank is fixedly installed at the upper ends of two supporting rods. And the upper end of the liquid storage tank is fixedly connected with a liquid pump. According to the debridement device for the general surgery department, through the arrangement of the medicine feeding mechanism and the stirring mechanism, when the stirring mechanism works, through the gear meshing transmission principle, a first rotating shaft can drive a second rotating shaft to rotate by a circle every time the first rotating shaft rotates by a plurality of circles; therefore, the limiting groove in the surface of the limiting barrel drives the movable block to move up and down in the cylindrical barrel in a reciprocating manner, so that the disinfectant can be intermittently discharged into the stirring tank, the purpose of discharging the disinfected waste liquid is achieved under the synchronous stirring of the stirring mechanism, and the potential safety hazard of waste liquid discharging is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a debridement device for general surgery. Background Technology

[0002] The most common wounds in general surgery are superficial wounds, which can be of various types, such as cuts, abrasions, contusions, or bruises. These wounds require multiple treatments, including cleaning, disinfection, dressing, and dressing changes, to heal. Debridement is the first step in wound management, such as rinsing the wound with clean or sterile water.

[0003] Chinese patent document CN213251905U discloses a general surgical debridement device, including a base plate, a column fixedly connected to the top of the base plate, a buffer block fixedly connected to the top of the column, a worktable slidably connected to the column, limit devices on both sides of the worktable, and a fixing frame fixedly connected to the top of the worktable. This general surgical debridement device integrates the base plate, column, buffer block, worktable, limit devices, fixing frame, buffer device, and casters into a single unit. The slidable connection between the worktable and column facilitates height adjustment for easy use by medical personnel. The limit devices secure the worktable to the column, improving stability. The buffer devices allow for easy placement of the patient's arm, facilitating cleaning by medical personnel, improving work efficiency, and meeting the intended use requirements.

[0004] However, in actual use, existing wound cleaning devices cannot disinfect and discharge the waste fluid after cleaning the wound. If the patient has an infectious disease and discharges the waste fluid indiscriminately, it may lead to cross-infection. Utility Model Content

[0005] The main objective of this invention is to provide a debridement device for general surgery, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A general surgical debridement device includes a shell, a debridement pool at the upper end of the shell, two arc-shaped placement openings at the front and rear of the upper end of the debridement pool, two placement racks at the right end of the debridement pool, and a debridement nozzle at the upper end of the two placement racks, a stirring mechanism in the middle of the inner cavity of the shell, a drug delivery mechanism in the left part of the inner cavity of the shell, two support rods fixedly installed in the middle of the left wall of the inner cavity of the shell, a reservoir filled with wound cleaning solution fixedly installed at the upper end of the two support rods, a liquid pump fixedly connected to the upper end of the reservoir, the input end of the liquid pump being connected to the reservoir, and an infusion tube connected to the debridement nozzle at the output end of the liquid pump.

[0008] Preferably, the stirring mechanism includes a motor and a stirring tank. The motor is fixedly installed on the bottom wall of the inner cavity of the outer shell, and the stirring tank is fixedly connected to the lower end of the debridement pool. A perforated plate is provided between the debridement pool and the stirring tank. A first rotating shaft is fixedly connected to the output end of the motor. The first rotating shaft is rotatably connected to the stirring tank and the perforated plate. Multiple stirring blades are fixedly installed on the outer surface of the first rotating shaft located inside the stirring tank. A drain pipe passing through the outer shell is provided on the lower right side of the stirring tank.

[0009] Preferably, the drug delivery mechanism includes a second rotating shaft and a storage tank. The upper and lower ends of the second rotating shaft are rotatably connected to the inner surface of the outer shell. The storage tank is fixedly installed on the left side of the top wall of the inner cavity of the outer shell. The inner cavity of the storage tank is filled with disinfectant. The upper end of the storage tank is also provided with a filling port that passes through the top wall of the inner cavity of the outer shell. A metering dispensing component is provided between the lower end of the storage tank and the upper left side of the outer surface of the mixing tank. The metering dispensing component is located in front of the second rotating shaft. A limit cylinder is fixedly connected to the outer surface of the second rotating shaft corresponding to the position of the metering dispensing component.

[0010] Preferably, a first gear is fixedly connected to the lower part of the outer surface of the first rotating shaft, and a second gear is fixedly connected to the lower part of the outer surface of the second rotating shaft. The first gear meshes with the second gear, and the diameter of the second gear is larger than the diameter of the first gear.

[0011] Preferably, the quantitative feeding assembly includes a cylindrical tube. A first conveying pipe is fixedly connected to the lower right side of the outer surface of the cylindrical tube. The two ends of the first conveying pipe are respectively connected to the mixing tank and the cylindrical tube. A second conveying pipe is fixedly connected to the upper left side of the outer surface of the cylindrical tube. The two ends of the second conveying pipe are respectively connected to the storage tank and the cylindrical tube. Both the first and second conveying pipes are inclined. A movable block is slidably installed in the lower part of the inner cavity of the cylindrical tube. A spring is provided in the upper part of the inner cavity of the cylindrical tube. A sliding groove corresponding to the limiting cylinder is opened in the rear part of the outer surface of the cylindrical tube.

[0012] Preferably, the outer surface of the movable block is fixedly connected to a ball handle that passes through the slide groove, and the outer surface of the limiting cylinder is provided with a limiting groove with a spherical cross-section. The limiting groove is composed of a spiral groove and a straight groove. The spiral groove has one revolution, and the straight groove connects the beginning and end of the spiral groove. The spherical part of the ball handle is located in the limiting groove.

[0013] Preferably, the outer surface of the movable block has inclined openings on the upper left and lower right sides, and a liquid storage cavity is formed between the two inclined openings.

[0014] Preferably, when the inclined port located on the lower right side of the outer surface of the movable block is connected to the first conveying pipe, the inclined port located on the upper left side of the outer surface of the movable block is not connected to the second conveying pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This general surgical debridement device, through the setting of a drug delivery mechanism and a stirring mechanism, uses the principle of gear meshing transmission so that every few rotations of the first rotating shaft drives the second rotating shaft to rotate once. This causes the movable block to move up and down once in the cylindrical tube through the limiting groove on the surface of the limiting cylinder, allowing the disinfectant to be intermittently discharged into the stirring tank. Under the synchronous stirring of the stirring mechanism, the waste liquid is disinfected before being discharged, reducing the safety hazards of waste liquid discharge. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the quantitative feeding component and the limiting cylinder of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the cylindrical tube of this utility model;

[0022] Figure 6 This is the working state of the quantitative feeding component of this utility model. Figure 1 ;

[0023] Figure 7 This is the working state of the quantitative feeding component of this utility model. Figure 2 ;

[0024] Figure 8 This is the working state of the quantitative feeding component of this utility model. Figure 3 .

[0025] In the diagram: 1. Outer shell; 2. Debridement pool; 3. Stirring mechanism; 4. Medication delivery mechanism; 5. Storage tank; 6. Liquid pump; 7. Infusion tube; 8. Debridement nozzle; 11. Support rod; 21. Placement port; 22. Placement rack; 31. Motor; 32. First rotating shaft; 33. Stirring tank; 34. Stirring blade; 35. Perforated plate; 36. Drain pipe; 37. First gear; 41. Second rotating shaft; 42. Second gear; 43. Quantitative feeding assembly; 431. First conveying pipe; 432. Cylindrical cylinder; 433. Second conveying pipe; 434. Slide groove; 435. Movable block; 436. Spring; 437. Ball handle; 438. Storage chamber; 439. Inclined opening; 44. Limiting cylinder; 441. Spiral groove; 442. Straight groove; 45. Storage tank. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution: a general surgical debridement device, including a shell 1, a debridement pool 2 at the upper end of the shell 1, two arc-shaped placement openings 21 at the front and rear of the upper end of the debridement pool 2, facilitating the patient to place their limb between the two placement openings 21 for debridement, two placement racks 22 at the right end of the debridement pool 2, and a debridement nozzle 8 at the upper end of the two placement racks 22 for placing the debridement nozzle 8, a stirring mechanism 3 in the middle of the inner cavity of the shell 1, and a drug delivery mechanism 4 in the left part of the inner cavity of the shell 1 for debridement. The waste liquid will enter the stirring mechanism 3 for disinfection and purification. The function of the drug delivery mechanism 4 is to quantitatively add disinfectant to the stirring mechanism 3. Two support rods 11 are fixedly installed in the middle of the left wall of the inner cavity of the outer shell 1. A reservoir 5 is fixedly installed at the upper end of the two support rods 11. The reservoir 5 is filled with wound cleaning solution. The wound cleaning solution is a current technology, and its composition is generally physiological saline. Physiological saline can gently remove dirt, impurities, blood clots and some loose necrotic tissue from the wound surface, creating good conditions for further examination and treatment of the wound. A liquid pump 6 is fixedly connected to the upper end of the reservoir 5. The input end of the liquid pump 6 is connected to the reservoir 5. The output end of the liquid pump 6 is equipped with an infusion tube 7 that is connected to the wound cleaning nozzle 8. During wound cleaning, medical staff can hold the wound cleaning nozzle 8 and start the liquid pump 6 to use the wound cleaning solution in the reservoir 5 to clean the patient's wound.

[0028] Specifically, such as Figure 3As shown, the stirring mechanism 3 includes a motor 31 and a stirring tank 33. The motor 31 is fixedly installed on the bottom wall of the inner cavity of the outer shell 1. The stirring tank 33 is fixedly connected to the lower end of the cleaning pool 2. A perforated plate 35 is provided between the cleaning pool 2 and the stirring tank 33. The perforated plate 35 is fixedly connected to the cleaning pool 2 and the stirring tank 33. The waste liquid after cleaning can enter the stirring tank 33 from the cleaning pool 2 through the perforated plate 35. The output end of the motor 31 is fixedly connected to a first rotating shaft 32. The first rotating shaft 32 is rotatably connected to the stirring tank 33 and the perforated plate 35. Multiple stirring blades 34 are fixedly installed on the outer surface of the first rotating shaft 32 located inside the stirring tank 33. A drain pipe 36 is provided on the lower right side of the stirring tank 33, passing through the outer shell 1. A solenoid valve or a manually controlled valve can be installed between the stirring tank 33 and the drain pipe 36. The drain is automatically controlled after the disinfection work is completed. This structure is not specifically limited. When the motor 31 is working, the rotation of the first rotating shaft 32 will drive the stirring blade 34 to stir the waste liquid in the stirring mechanism 3.

[0029] Furthermore, such as Figures 2-3 As shown, the drug delivery mechanism 4 includes a second rotating shaft 41 and a storage tank 45. The upper and lower ends of the second rotating shaft 41 are rotatably connected to the inner surface of the outer shell 1. The storage tank 45 is fixedly installed on the left side of the inner cavity top wall of the outer shell 1. The inner cavity of the storage tank 45 is filled with disinfectant, which can remove germs in the waste liquid. The upper end of the storage tank 45 is also provided with a filling port that passes through the inner cavity top wall of the outer shell 1. Medical personnel can add disinfectant to the storage tank 45 from the upper side of the outer shell 1 through the filling port. The lower end of the storage tank 45 and the upper left side of the outer surface of the mixing tank 33 are jointly provided with a quantitative feeding component 43. During operation, the quantitative feeding component 43 can add disinfectant to the mixing tank 33 in a timed and quantitative manner. The quantitative feeding component 43 is located in front of the second rotating shaft 41. The outer surface of the second rotating shaft 41 is fixedly connected to a limiting cylinder 44 corresponding to the position of the quantitative feeding component 43.

[0030] In addition, a first gear 37 is fixedly connected to the lower part of the outer surface of the first rotating shaft 32, and a second gear 42 is fixedly connected to the lower part of the outer surface of the second rotating shaft 41. The first gear 37 and the second gear 42 mesh, and the diameter of the second gear 42 is larger than the diameter of the first gear 37. Therefore, when the motor 31 drives the first rotating shaft 32 to rotate, the rotation of the first gear 37 will also drive the second gear 42 to rotate synchronously. The first gear 37 will rotate several times before the second gear 42 will rotate once. That is, the disinfectant will be added once after the stirring blade 34 stirs for a period of time. The specific interval is determined by the diameter ratio of the second gear 42 and the first gear 37.

[0031] Specifically, such as Figures 4-6As shown, the quantitative feeding assembly 43 includes a cylindrical tube 432. A first conveying pipe 431 is fixedly connected to the lower right side of the outer surface of the cylindrical tube 432. The two ends of the first conveying pipe 431 are respectively connected to the mixing tank 33 and the cylindrical tube 432. A second conveying pipe 433 is fixedly connected to the upper left side of the outer surface of the cylindrical tube 432. The two ends of the second conveying pipe 433 are respectively connected to the storage tank 45 and the cylindrical tube 432. Both the first conveying pipe 431 and the second conveying pipe 433 are inclined. Therefore, by controlling the opening and closing state inside the cylindrical tube 432, it can be determined whether the storage tank 45 delivers disinfectant into the mixing tank 33. A movable block 435 is slidably installed in the lower part of the inner cavity of the cylindrical tube 432. A spring 436 is provided in the upper part of the inner cavity of the cylindrical tube 432. A groove 434 corresponding to the limiting cylinder 44 is opened in the rear part of the outer surface of the cylindrical tube 432.

[0032] Furthermore, a ball handle 437 passing through the slide groove 434 is fixedly connected to the rear of the outer surface of the movable block 435. Therefore, the ball handle 437 will move up and down within the slide groove 434 as the movable block 435 moves up and down. The outer surface of the limiting cylinder 44 is provided with a limiting groove with a spherical cross-section. The limiting groove is composed of a spiral groove 441 and a straight groove 442. The spiral groove 441 has one full turn, and the straight groove 442 connects the beginning and end of the spiral groove 441. The spherical part of the ball handle 437 is located within the limiting groove, so the second rotation... During the rotation of the shaft 41, the limiting groove on the surface of the limiting cylinder 44 will cause the ball handle 437 and the movable block 435 to move upward along the contour of the spiral groove 441, overcoming the elastic force of the spring 436. Then, when the ball handle 437 reaches the straight groove 442, the elastic force of the spring 436 will be released, pushing the movable block 435 and the ball handle 437 downward to the initial position. Therefore, it can be realized that for every one revolution of the second rotating shaft 41, the limiting groove will drive the movable block 435 to move up and down once in the cylindrical cylinder 432.

[0033] To allow the movable block 435 to reciprocate up and down once inside the cylindrical tube 432, a disinfectant is quantitatively added to the mixing tank 33, such as... Figures 6-8 The movable block 435 shown has inclined openings 439 on its upper left and lower right sides, and a liquid storage cavity 438 is formed between the two inclined openings 439. When the inclined opening 439 on the lower right side of the outer surface of the movable block 435 is connected to the first delivery pipe 431, the inclined opening 439 on the upper left side of the outer surface of the movable block 435 is not connected to the second delivery pipe 433 (e.g., Figure 6 In this state, the disinfectant stored in the storage chamber 438 will flow into the stirring tank 33 through the first delivery pipe 431; similarly, when the inclined port 439 on the upper left side of the outer surface of the movable block 435 is connected to the second delivery pipe 433, and the inclined port 439 on the lower right side of the outer surface of the movable block 435 is not connected to the first delivery pipe 431 (e.g. Figure 8(State), at this time, the disinfectant in the storage tank 45 will flow into the storage chamber 438 through the second delivery pipe 433 until the storage chamber 438 is filled, and the amount of disinfectant added each time is greater than the volume of the storage chamber 438.

[0034] It should be noted that during the up-and-down movement of the active block 435, there are also situations such as... Figure 7 As shown, neither of the two inclined ports 439 has reached the position of the corresponding second conveying pipe 433 or first conveying pipe 431, thus avoiding direct communication between the second conveying pipe 433 and the first conveying pipe 431.

[0035] In summary, this general surgical debridement device can drive the drug delivery mechanism 4 to work synchronously when the motor 31 is working, so that the drug delivery mechanism 4 intermittently discharges disinfectant into the mixing tank 33, thereby achieving the purpose of disinfecting the waste liquid before discharge under the synchronous stirring of the stirring blade 34.

[0036] The working principle of this utility model is as follows: When the motor 31 is working, the rotation of the first rotating shaft 32 will drive the stirring blade 34 to stir the waste liquid in the stirring mechanism 3.

[0037] When the motor 31 drives the first rotating shaft 32 to rotate, it will also drive the second gear 42 to rotate synchronously through the rotation of the first gear 37. The first gear 37 will rotate several times before the second gear 42 rotates once.

[0038] During the rotation of the second rotating shaft 41, the limiting groove on the surface of the limiting cylinder 44 will carry the ball handle 437 and the movable block 435 to move upward along the contour of the spiral groove 441, overcoming the elastic force of the spring 436. Then, when the ball handle 437 reaches the straight groove 442, the elastic force of the spring 436 will be released, pushing the movable block 435 and the ball handle 437 downward to the initial position. Therefore, it can be realized that for every one rotation of the second rotating shaft 41, the limiting groove will drive the movable block 435 to move up and down once in the cylindrical cylinder 432.

[0039] During the up-and-down movement of the movable block 435, when the inclined opening 439 on the upper left side of the outer surface of the movable block 435 is connected to the second conveying pipe 433, the disinfectant in the storage tank 45 will flow into the storage chamber 438 through the second conveying pipe 433 until the storage chamber 438 is filled. When the inclined opening 439 on the lower right side of the outer surface of the movable block 435 is connected to the first conveying pipe 431, the disinfectant stored in the storage chamber 438 will flow into the stirring tank 33 through the first conveying pipe 431, so that the disinfectant can be intermittently discharged into the stirring tank 33. Under the synchronous stirring of the stirring blade 34, the waste liquid is disinfected and then discharged.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A debridement device for general surgery comprising a housing (1), characterized in that: The upper end of the shell (1) is provided with a debridement pool (2), the upper end of the debridement pool (2) is provided with two arc-shaped placing openings (21) on the front and back, the right end of the debridement pool (2) is provided with two placing racks (22), the upper end of the two placing racks (22) is commonly provided with a debridement nozzle (8), the middle part of the inner cavity of the shell (1) is provided with a stirring mechanism (3), the left part of the inner cavity of the shell (1) is provided with a medicine feeding mechanism (4), the middle part of the left wall of the inner cavity of the shell (1) is fixedly installed with two supporting rods (11), the upper end of the two supporting rods (11) is fixedly installed with a liquid storage tank (5), the liquid storage tank (5) is filled with a wound cleaning liquid, the upper end of the liquid storage tank (5) is fixedly connected with a liquid pump (6), the input end of the liquid pump (6) is communicated with the liquid storage tank (5), and the output end of the liquid pump (6) is provided with a liquid delivery pipe (7) communicated with the debridement nozzle (8).

2. The debridement device of claim 1, wherein: The stirring mechanism (3) comprises a motor (31) and a stirring pot (33), the motor (31) is fixedly installed on the bottom wall of the inner cavity of the shell (1), the stirring pot (33) is fixedly connected to the lower end of the debridement pool (2), the debridement pool (2) and the stirring pot (33) are commonly provided with a hollow plate (35), the output end of the motor (31) is fixedly connected with a first rotating shaft (32), the first rotating shaft (32) is rotatably connected with the stirring pot (33) and the hollow plate (35), a plurality of stirring blades (34) are fixedly installed on the part of the outer surface of the first rotating shaft (32) located in the stirring pot (33), and the lower end of the stirring pot (33) is provided with a liquid discharge pipe (36) penetrating through the shell (1).

3. The debridement device of claim 2, wherein: The medicine feeding mechanism (4) comprises a second rotating shaft (41) and a liquid storage tank (45), the upper and lower ends of the second rotating shaft (41) are rotatably connected with the inner surface of the shell (1), the liquid storage tank (45) is fixedly installed on the left side of the top wall of the inner cavity of the shell (1), the inner cavity of the liquid storage tank (45) is filled with a disinfectant, the upper end of the liquid storage tank (45) is also provided with a material adding opening penetrating through the top wall of the inner cavity of the shell (1), the lower end of the liquid storage tank (45) and the outer surface of the left upper part of the stirring pot (33) are commonly provided with a quantitative discharging assembly (43), the quantitative discharging assembly (43) is located on the front side of the second rotating shaft (41), and the outer surface of the second rotating shaft (41) is fixedly connected with a limiting cylinder (44) corresponding to the position of the quantitative discharging assembly (43).

4. The debridement device of claim 3, wherein: The outer surface of the first rotating shaft (32) is fixedly connected with a first gear (37), the outer surface of the second rotating shaft (41) is fixedly connected with a second gear (42), the first gear (37) is engaged with the second gear (42), and the diameter of the second gear (42) is greater than that of the first gear (37).

5. The debridement device of claim 4, wherein: The quantitative feeding assembly (43) comprises a cylindrical barrel (432), the outer surface right lower side of the cylindrical barrel (432) is fixedly connected with a first conveying pipe (431), the two ends of the first conveying pipe (431) are communicated with the stirring tank (33) and the cylindrical barrel (432) respectively, the outer surface left upper side of the cylindrical barrel (432) is fixedly connected with a second conveying pipe (433), the two ends of the second conveying pipe (433) are communicated with the liquid storage tank (45) and the cylindrical barrel (432) respectively, the first conveying pipe (431) and the second conveying pipe (433) are both inclined, the inner cavity lower part of the cylindrical barrel (432) is slidably installed with a movable block (435), the inner cavity upper part of the cylindrical barrel (432) is provided with a spring (436), the outer surface rear part of the cylindrical barrel (432) is provided with a sliding groove (434) corresponding to a limiting cylinder (44).

6. The debridement device of claim 5, wherein: The outer surface rear part of the movable block (435) is fixedly connected with a ball handle (437) penetrating through the sliding groove (434), the outer surface of the limiting cylinder (44) is provided with a limiting groove with spherical cross section, the limiting groove is composed of a spiral groove (441) and a straight slot (442), the spiral groove (441) has one spiral turn, the straight slot (442) connects the spiral groove (441) in head and tail, and the spherical part of the ball handle (437) is located in the limiting groove.

7. The debridement device of claim 6, wherein: The outer surface upper left side and lower right side of the movable block (435) are both provided with inclined openings (439), and a liquid storage cavity (438) is jointly provided between the two inclined openings (439).

8. The debridement device of claim 7, wherein: When the inclined opening (439) located at the outer surface lower right side of the movable block (435) is communicated with the first conveying pipe (431), the inclined opening (439) located at the outer surface upper left side of the movable block (435) is not communicated with the second conveying pipe (433).

Citation Information

Patent Citations

  • Debridement device for general surgery department

    CN213251905U