A combined debridement device for surgery

Abstract

The application discloses a combined debridement device for surgery, and relates to the technical field of medical devices, which comprises a device shell and a surgical cutter, the surgical cutter is fixedly inserted into the inside of the device shell, the bottom end of the surgical cutter is exposed from the device shell, and a debridement auxiliary mechanism is arranged on the surface of the device shell, the debridement auxiliary mechanism comprises guide shells arranged on the two sides of the device shell, a moving plate is slidably connected to the inside of the guide shell, a connecting branch is fixedly connected to the bottom end of the moving plate, a cutter support strip is fixedly connected to the bottom end of the connecting branch, the cross section of the cutter support strip is in the shape of an arc, a second screw rod is threadedly inserted into the top end of the moving plate, and a driven wheel is rotatably connected to the inside top end of the guide shell, so that the stability requirement of the operator using the surgical cutter in the process of removing necrotic tissues is higher, and the debridement operation threshold is higher.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a combined surgical debridement device. Background Technology

[0002] Surgical debridement devices are medical devices used in surgical procedures to clean wounds, infections, or surgical wounds. They are mainly used to rinse and remove dirt, foreign objects, necrotic tissue, and secretions from wounds to clean the wound, reduce the risk of infection, and create conditions for tissue healing. They are suitable for debridement of various surgical wounds and traumatic wounds.

[0003] When debridement surgical wounds, it is usually necessary to remove necrotic tissue first to clean the wound, reduce the risk of infection, and create favorable conditions for tissue healing. Currently, in clinical practice, the operator often uses a scalpel to gradually remove necrotic tissue. This process requires a high degree of stability in the operator's use of the scalpel. If the scalpel cuts too deeply, it can easily cause additional damage to the patient's healthy tissue. If the cut is too shallow, the necrotic tissue may not be completely removed, requiring secondary debridement. These problems not only affect the efficiency and effectiveness of wound cleaning but also delay the patient's wound healing process. Furthermore, with existing traditional debridement tools, the blade is easily covered by the removed tissue when cutting necrotic tissue, forcing doctors to frequently stop and wipe it. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this invention is to provide a combined surgical debridement device to solve the problem that the operation of debridement requires high stability of the operator's scalpel during the removal of necrotic tissue, resulting in a high threshold for debridement operation.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A combined surgical debridement device includes a device housing and a surgical blade. The surgical blade is fixedly inserted into the interior of the device housing, with its bottom end protruding from the device housing. The device also includes a debridement auxiliary mechanism disposed on the surface of the device housing. The debridement auxiliary mechanism includes guide housings disposed on both sides of the device housing. A movable plate is slidably connected inside the guide housing. A connecting arm is fixedly connected to the bottom end of the movable plate. A blade support bar is fixedly connected to the bottom end of the connecting arm. The blade support bar has an arc-shaped cross-section. A second screw is threaded into the top of the movable plate. A driven wheel is rotatably connected to the top of the guide housing. The top of the second screw is fixedly connected to the bottom end of the driven wheel.

[0007] Furthermore, a rotating rod is rotatably inserted inside the top of the guide housing, and a driving wheel is fixedly connected to the bottom end of the rotating rod. The driving wheel is in contact with the driven wheel, and the diameter of the driving wheel is smaller than the diameter of the driven wheel.

[0008] Furthermore, a first ear plate and a second ear plate are fixedly connected to both sides of the guide housing, and a first screw is inserted into the internal thread of the first ear plate. The first screw is rotatably connected to the surface of the device housing, and a rotating handle is fixedly connected to the surface of both the first screw and the rotating rod.

[0009] Furthermore, two guide posts are inserted inside the second ear plate, and both guide posts are fixedly connected to the surface of the guide shell.

[0010] Furthermore, a rotating shaft is rotatably connected inside the blade support bar, and a contact wheel is fixedly sleeved on the surface of the rotating shaft. The contact wheel is located inside the blade support bar, and the bottom surface of the contact wheel protrudes from the lower surface of the blade support bar. An extension tube is fixedly connected to one end of the rotating shaft near the surgical blade, and an extension rod is slidably inserted inside the extension tube. Sterile cotton cloth is fixedly connected to the surface of the extension rod.

[0011] Furthermore, a washer is fixedly connected to one end of the extension rod inside the extension tube, and a first spring is fixedly connected to the surface of the washer. The first spring is fixedly connected to the end of the rotating shaft near the surgical tool.

[0012] Furthermore, two saline storage sacs are fixedly connected inside the outer shell of the device. The two saline storage sacs are located on both sides of the surgical instrument. The bottom end of each saline storage sac is connected to an outlet pipe, and the lower end of the outlet pipe is inserted into the lower end of the outer shell of the device.

[0013] Furthermore, a pad is fixedly connected to both sides of the inside of the saline storage bag, and a second spring is fixedly connected between the two pads. A pressing block is inserted into the inside of both sides of the outer shell of the device, and the pressing block is fixedly connected to the outer surface of the saline storage bag.

[0014] Furthermore, a sealing membrane is fixedly connected to the inside of the top end of the water outlet pipe.

[0015] Furthermore, the surface of the sealing film is provided with a fracture groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) This scheme can adjust the distance between the bottom surface of the blade support strip and the bottom end of the surgical blade according to the thickness of the necrotic tissue to be removed by the patient. When performing necrotic tissue removal, it is easier to control the depth of the surgical blade into the necrotic tissue of the patient, thereby reducing the technical requirements of the operator during the necrotic tissue removal operation, reducing the error rate during the necrotic tissue removal process, creating better conditions for tissue healing, and using the slow rotation characteristics of the small diameter active wheel driving the large diameter passive wheel to achieve precise micro-adjustment of the blade support strip, reducing the technical requirements of the removal operation.

[0017] (2) This solution moves the guide housing by rotating the first screw, and adjusts the distance between the two guide housings and the tool support strip so that the tool support strip can cross the wound when it is attached to the skin surface, thus avoiding direct pressure on the wound and causing contamination.

[0018] (3) During the excision process of this scheme, when the surgical blade is pushed to move, the blade support bar moves synchronously with it on the skin surface, driving the contact wheel to rotate, which in turn drives the extension tube and sterile cotton cloth to rotate. The sterile cotton cloth adheres to and removes the necrotic tissue that sticks to the surgical blade after excision, thus avoiding obstructing the field of vision and affecting the excision accuracy.

[0019] (4) If the necrotic tissue adheres to the wound during the excision, resulting in poor operating field, press down the pressing block to increase the internal pressure of the saline storage sac. The sealing membrane will rupture along the fracture groove, and the saline in the storage sac will be squeezed out from the outlet pipe to rinse the wound and clean the adhered necrotic tissue. The excision and rinsing operations are carried out simultaneously, shortening the operation interval and overall time consumption. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the tool support strip portion of the present invention; Figure 3 This is a schematic diagram of the internal structure of the guide shell of the present invention; Figure 4 This is a schematic diagram of the structure of the guide shell portion of the present invention; Figure 5 This is a schematic diagram of the contact wheel and extension cylinder of the present invention; Figure 6 This is a schematic diagram of the outer casing of the device of the present invention; Figure 7 This is a schematic diagram of the structure of the outer shell and the interior of the saline storage bladder of the device of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle.

[0021] Explanation of the labels in the diagram: 1. Device casing; 2. Surgical instruments; 301. Guide housing; 302. Tool support bar; 303. Rotary handle; 304. Guide post; 305. First screw; 306. Connecting arm; 307. Moving plate; 308. Second screw; 309. Driven wheel; 310. Rotating rod; 311. Driving wheel; 312. First ear plate; 313. Second ear plate; 314. Extension cylinder; 315. Rotating shaft; 316. Contact wheel; 317. Extension rod; 318. Sterile cotton cloth; 320. First spring; 321. Gasket; 401. Pressing block; 402. Saline reservoir; 403. Pad; 404. Second spring; 405. Outlet pipe; 406. Sealing membrane; 407. Fracture groove. 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] Please see Figures 1-4 A combined surgical debridement device includes a device housing 1 and a surgical blade 2. The surgical blade 2 is fixedly inserted into the interior of the device housing 1, with its bottom end protruding from the device housing 1. The device also includes a debridement auxiliary mechanism disposed on the surface of the device housing 1. The debridement auxiliary mechanism includes guide housings 301 disposed on both sides of the device housing 1. A movable plate 307 is slidably connected inside the guide housing 301. A connecting arm 306 is fixedly connected to the bottom end of the movable plate 307. A blade support bar 302 is fixedly connected to the bottom end of the connecting arm 306. The blade support bar 302 has an arc-shaped cross-section to reduce resistance when sliding on the skin surface. A second screw 308 is threaded into the top of the movable plate 307. A driven wheel 309 is rotatably connected to the top of the guide housing 301. The top of the second screw 308 is fixedly connected to the bottom end of the driven wheel 309.

[0024] The guide housing 301 has a rotating rod 310 rotatably inserted inside its top end. A drive wheel 311 is fixedly connected to the bottom end of the rotating rod 310. The drive wheel 311 is in contact with the driven wheel 309. The diameter of the drive wheel 311 is smaller than the diameter of the driven wheel 309. A first ear plate 312 and a second ear plate 313 are fixedly connected to both sides of the guide housing 301. A first screw 305 is threaded into the inside of the first ear plate 312. The first screw 305 is rotatably connected to the surface of the device housing 1. A handle 303 is fixedly connected to both the surface of the first screw 305 and the rotating rod 310. Two guide posts 304 are inserted inside the second ear plate 313. Both guide posts 304 are fixedly connected to the surface of the guide housing 301, which serves to prevent self-rotation and stabilize the guide.

[0025] By adopting the above technical solution, when cleaning the patient's wound, rotating the rotating rod 310 drives the active wheel 311 to rotate, which in turn drives the passive wheel 309 and the second screw 308 to rotate. This drives the moving plate 307 and the blade support bar 302 to move up and down. The operator can adjust the distance between the bottom surface of the blade support bar 302 and the bottom end of the surgical blade 2 according to the thickness of the tissue to be removed. In this way, when removing necrotic tissue, the blade support bar 302 rests against the patient's skin, providing support. This makes it easier for the operator to control the depth of the surgical blade 2 entering the necrotic tissue, thereby reducing the technical requirements of the operator during the necrotic tissue removal process, reducing the error rate during the necrotic tissue removal process, and creating better conditions for tissue healing. During the adjustment of the tool support bar 302, the small-diameter driving wheel 311 drives the large-diameter driven wheel 309 to rotate, which makes the driven wheel 309 and the second screw 308 rotate more slowly, thereby controlling the moving speed of the tool support bar 302 and making the tool support bar 302 more precisely adjustable.

[0026] Before removing the necrotic tissue from the patient, the guide housing 301 can be moved by rotating the first screw 305, adjusting the distance between the two guide housings 301 and the two tool support strips 302. This ensures that when the tool support strips 302 are on the patient's skin, they cross the wound without pressing directly on it, thus preventing the tool support strips 302 from contacting the wound and causing contamination.

[0027] like Figures 5-8As shown, a rotating shaft 315 is rotatably connected inside the blade support bar 302. A contact wheel 316 is fixedly sleeved on the surface of the rotating shaft 315. The contact wheel 316 is located inside the blade support bar 302, and its bottom surface protrudes from the lower surface of the blade support bar 302. An extension tube 314 is fixedly connected to one end of the rotating shaft 315 near the surgical blade 2. An extension rod 317 is slidably inserted inside the extension tube 314. A sterile cotton cloth 318 is fixedly connected to the surface of the extension rod 317. A gasket 321 is fixedly connected to one end of the extension rod 317 inside the extension tube 314. A first spring 320 is fixedly connected to the surface of the gasket 321. The first spring 320 allows the sterile cotton cloth 318 to press against the surface of the surgical blade 2, thereby providing a better cleaning effect. The first spring 320 is fixedly connected to the end of the rotating shaft 315 near the surgical blade 2.

[0028] The device housing 1 contains two saline reservoirs 402 fixedly connected inside. These reservoirs are located on either side of the surgical blade 2. Each reservoir 402 has a drain pipe 405 connected to its bottom end, with the lower end of the drain pipe 405 inserted into the lower end of the device housing 1. Both sides of the reservoir 402 have pads 403 fixedly connected inside. A second spring 404 is fixedly connected between the two pads 403, allowing the reservoir 402 to return to its original shape when the pressing block 401 is released, facilitating the next pressing. Pressing blocks 401 are inserted into both sides of the device housing 1, and are fixedly connected to the outer surface of the saline reservoir 402. A sealing membrane 406 is fixedly connected to the top of the drain pipe 405. The sealing membrane 406 has a fracture groove 407 on its surface, which controls the rupture path of the sealing membrane, ensuring a more stable flow of saline solution.

[0029] By adopting the above technical solution, during the removal of necrotic tissue, the blade support bar 302 moves along with the surgical blade 2 on the patient's skin surface, and at the same time drives the contact wheel 316 to rotate. During the rotation of the contact wheel 316, the extension tube 314 and the sterile cotton cloth 318 can be rotated. The sterile cotton cloth 318 is used to remove the necrotic tissue that adheres to the surgical blade 2 after removal, so as to prevent the necrotic tissue after removal from adhering to the surgical blade 2 and affecting the operator's observation of the removal site of the surgical blade 2 and thus affecting the removal accuracy.

[0030] When removing necrotic tissue, if necrotic tissue adheres to the wound and obstructs the operating view, the operator can press down firmly on the pressing block 401 to increase the internal pressure of the saline reservoir 402. This will cause the sealing membrane 406 to rupture along the fracture groove 407, allowing the saline solution inside the saline reservoir 402 to be squeezed out from the outlet pipe 405. This will flush the necrotic tissue adhering to the patient's wound, thereby reducing the occurrence of necrotic tissue adhering to the wound and affecting the removal of necrotic tissue. Furthermore, the removal and cleaning operations can be performed simultaneously, reducing the operation interval and the time required.

[0031] Instructions for use: First, rotate the first screw 305 to move the guide housing 301. Adjust the distance between the two guide housings 301 and the tool support strip 302 so that the tool support strip 302 can cross the wound when it is attached to the skin surface, avoiding direct pressure on the wound and causing contamination. This completes the basic positioning before debridement. Next, rotating the rotating rod 310 drives the active wheel 311 to rotate, which in turn drives the passive wheel 309 and the second screw 308 to rotate, driving the moving plate 307 and the blade support bar 302 to move up and down. According to the thickness of the necrotic tissue to be removed by the patient, the distance between the bottom surface of the blade support bar 302 and the bottom end of the surgical blade 2 is adjusted. Furthermore, by utilizing the slow rotation characteristic of the small-diameter active wheel 311 driving the large-diameter passive wheel 309, the blade support bar 302 can be precisely fine-tuned, reducing the technical requirements of the resection operation. Next, the adjusted blade support strip 302 is placed against the skin around the patient's wound. With the support of the blade support strip 302, the surgical blade 2 is provided with a reference for the cutting depth. The operator holds the surgical blade 2 and cuts off the necrotic tissue along the blade support strip 302, accurately controlling the depth of the blade into the necrotic tissue and reducing operational errors. During the excision process, when the surgical blade 2 is moved, the blade support bar 302 moves synchronously with it on the skin surface, driving the contact wheel 316 to rotate, which in turn drives the extension tube 314 and the sterile cotton cloth 318 to rotate. The sterile cotton cloth 318 adheres to and removes the necrotic tissue that is stuck to the surgical blade 2 after excision, thus avoiding obstructing the field of vision and affecting the excision accuracy. If necrotic tissue adheres to the wound during resection, resulting in a poor field of vision, press down firmly on the pressing block 401 to increase the internal pressure of the saline reservoir 402. The sealing membrane 406 ruptures along the fracture groove 407, and the saline in the reservoir is squeezed out from the outlet pipe 405 to rinse the wound and clean the adhered necrotic tissue. The resection and rinsing operations are performed simultaneously, shortening the operation interval and overall time.

[0032] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A combined surgical debridement device, comprising a device housing (1) and a surgical blade (2), wherein the surgical blade (2) is fixedly inserted into the inside of the device housing (1), and the bottom end of the surgical blade (2) protrudes from the device housing (1), characterized in that: It also includes a wound cleaning auxiliary mechanism, which is disposed on the surface of the device housing (1). The wound cleaning auxiliary mechanism includes guide housings (301) disposed on both sides of the device housing (1). A movable plate (307) is slidably connected inside the guide housing (301). A connecting arm (306) is fixedly connected to the bottom end of the movable plate (307). A knife support bar (302) is fixedly connected to the bottom end of the connecting arm (306). The cross-sectional shape of the knife support bar (302) is arc-shaped. A second screw (308) is threaded into the top end of the movable plate (307). A driven wheel (309) is rotatably connected to the top end of the guide housing (301). The top end of the second screw (308) is fixedly connected to the bottom end of the driven wheel (309).

2. The combined surgical debridement device according to claim 1, characterized in that: A rotating rod (310) is rotatably inserted inside the top of the guide housing (301). A drive wheel (311) is fixedly connected to the bottom of the rotating rod (310). The drive wheel (311) is in contact with the passive wheel (309). The diameter of the drive wheel (311) is smaller than the diameter of the passive wheel (309).

3. The combined surgical debridement device according to claim 1, characterized in that: The guide housing (301) is fixedly connected to a first ear plate (312) and a second ear plate (313) on both sides respectively. The first ear plate (312) is threaded with a first screw (305). The first screw (305) is rotatably connected to the surface of the device housing (1). The first screw (305) and the rotating rod (310) are both fixedly connected with a handle (303).

4. The combined surgical debridement device according to claim 3, characterized in that: Two guide posts (304) are inserted inside the second ear plate (313), and both guide posts (304) are fixedly connected to the surface of the guide shell (301).

5. A combined surgical debridement device according to claim 1, characterized in that: The blade support bar (302) is rotatably connected to a rotating shaft (315). A contact wheel (316) is fixedly sleeved on the surface of the rotating shaft (315). The contact wheel (316) is located inside the blade support bar (302). The bottom surface of the contact wheel (316) protrudes from the lower surface of the blade support bar (302). An extension tube (314) is fixedly connected to one end of the rotating shaft (315) near the surgical blade (2). An extension rod (317) is slidably inserted inside the extension tube (314). A sterile cotton cloth (318) is fixedly connected to the surface of the extension rod (317).

6. A combined surgical debridement device according to claim 5, characterized in that: The extension rod (317) is fixedly connected to a gasket (321) at one end inside the extension tube (314). A first spring (320) is fixedly connected to the surface of the gasket (321). The first spring (320) is fixedly connected to the end of the rotating shaft (315) near the surgical knife (2).

7. A combined surgical debridement device according to claim 1, characterized in that: Two saline storage bags (402) are fixedly connected inside the outer shell (1) of the device. The two saline storage bags (402) are located on both sides of the surgical knife (2). The bottom end of the saline storage bag (402) is connected to a water outlet pipe (405). The lower end of the water outlet pipe (405) is inserted into the lower end of the outer shell (1) of the device.

8. A combined surgical debridement device according to claim 7, characterized in that: The saline storage sac (402) has pads (403) fixedly connected to both sides inside, and a second spring (404) is fixedly connected between the two pads (403). Pressing blocks (401) are inserted into the interior of both sides of the device housing (1), and the pressing blocks (401) are fixedly connected to the outer surface of the saline storage sac (402).

9. A combined surgical debridement device according to claim 7, characterized in that: A sealing membrane (406) is fixedly connected inside the top end of the water outlet pipe (405).

10. A combined surgical debridement device according to claim 9, characterized in that: The surface of the sealing membrane (406) is provided with a fracture groove (407).

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