Wound debris collecting curette with negative pressure adsorption function
The wound debris collection curette with negative pressure adsorption function solves the problems of poor cleaning effect and easy damage of traditional curettes, achieving efficient wound cleaning and improved safety. The structure is easy to disassemble and clean.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional wound care curettes are ineffective at removing wound debris, are prone to splashing and causing secondary contamination, obstruct the field of vision, are easily damaged, are inconvenient to disassemble and clean, and pose a high risk of hard cutting into tissue.
Design a wound debris collection scraper with negative pressure adsorption function. The scraper uses a negative pressure aspirator to provide stable suction to remove debris and fluid. The scraper head is angle-adjustable and the structure is easy to disassemble and clean. The negative pressure system adsorbs debris in real time, avoiding splashing and contamination.
It improves the efficiency and safety of wound cleaning, reduces secondary contamination, lowers the risk of abrasions, and its structural design facilitates disassembly and cleaning, keeping the surgical field clean.
Smart Images

Figure 0065F469-DD09-4D59-8583-6544646CAFC6 
Figure 1A2CB680-D170-46FD-B0C9-43C6CC290A40 
Figure 31030580-00AA-44EA-841E-315836A9CA49
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of wound care, in particular to a wound debris collecting spatula with negative pressure adsorption function. BACKGROUND
[0002] The wound debris collecting spatula for wound care is a medical device specially designed for wound cleaning. Its core function is to safely remove necrotic tissue, secretion crusts or foreign debris on the wound surface and simultaneously collect these waste materials to avoid secondary pollution. It is widely used in postoperative dressing change, chronic wound (such as pressure sores, diabetic foot) care, burn wound treatment and other scenarios.
[0003] Currently, the traditional spatula needs to be manually collected and cleaned, and the cleaning effect is poor. Debris can easily splash and cause secondary pollution. The field of vision is easily blocked by debris, affecting subsequent operations. In addition, the traditional spatula is fixed by screw connection, and common problems such as thread slipping, wear or cross-thread damage occur, which brings inconvenience to disassembly, cleaning and disinfection maintenance. In addition, the rigid spatula cuts into the wound, and the sharp edge of the spatula can easily scratch the tissue, increasing the risk of excessive removal of new granulation tissue. SUMMARY
[0004] The present application relates to a wound debris collecting spatula with negative pressure adsorption function, wherein the negative pressure aspirator provides continuous and stable negative pressure suction, and the removed debris and liquid can be sucked away by the suction port, then pass through the connecting cannula and the connecting sleeve, and temporarily collect and store in the container in the handle. The negative pressure system can adsorb debris in real time, avoid debris splashing, reduce secondary pollution, keep the surgical field clean, and improve the efficiency and safety of debridement.
[0005] The present application provides a wound debris collecting spatula with negative pressure adsorption function, which specifically comprises: a handle, the rear end of the handle is provided with a power cord, one side of the outer periphery of the handle is provided with a control switch, and the front end of the handle is provided with a connecting sleeve; a negative pressure aspirator is arranged in the handle, and the negative pressure aspirator is commonly electrically connected with the power cord and is controlled and adjusted through the switch, and the negative pressure aspirator is connected with the connecting sleeve; The front part of the handle is provided with a hollow pipe; the front part of the hollow pipe is provided with a spatula head.
[0006] Further, the front end of the handle is provided with a butt joint clasp, and the butt joint clasp is located at the connection position of the handle and the hollow pipe. Two fixing frames are arranged in the butt joint clasp and are distributed in an upper and lower symmetrical manner. Two connecting rods are arranged on the fixing frames. Two mounting sleeves are arranged on the outer periphery of the butt joint clasp and are distributed in an upper and lower symmetrical manner. Limiting columns are arranged on the mounting sleeves.
[0007] Further, the fixing frame is provided with two connecting hangers, the fixing frame is provided with a pin shaft, the connecting hangers are rotationally connected with the fixing frame through the pin shaft, and the connecting hangers are provided with mounting columns.
[0008] Further, the two connecting rods are symmetrically distributed, stretch springs are arranged on the opposite inner sides of the two connecting rods, and rotating sleeves are arranged on the opposite outer ends of the two connecting rods and are sleeved on the mounting columns.
[0009] Further, the mounting sleeve is provided with a fixed seat at the top, the fixed seat is connected with the butt joint snap ring, the mounting sleeve is a cylindrical cavity structure, and the side wall of the mounting sleeve is provided with two limiting through grooves which are symmetrically distributed.
[0010] Further, one end of the limiting column is provided with a pressing plate, a supporting plate is arranged on the limiting column, a first compression spring is sleeved on the limiting column, the supporting plate is provided with two limiting blocks at the outer periphery, the limiting column is slidingly penetrated through the fixed seat and the butt joint snap ring, the supporting plate and the first compression spring are located in the mounting sleeve, the first compression spring is supported between the bottom wall of the mounting sleeve and the supporting plate, and the supporting plate is slidingly connected with the limiting through grooves of the mounting sleeve through the limiting blocks.
[0011] Further, the hollow pipe is provided with a mounting seat at the front end, the mounting seat is provided with a suction port, the suction port corresponds to the spatula head, a connecting pipe is arranged in the hollow pipe and communicates with the suction port, a sealing sleeve is arranged at the rear end of the connecting pipe and is slidingly inserted into the connecting sleeve.
[0012] Further, the rear end of the hollow pipe is provided with two butt joint plug plates which are inserted into the butt joint snap ring, the butt joint plug plates are in an arc structure, two elastic clamping plates are arranged between the two butt joint plug plates, the elastic clamping plates are hung with the connecting hangers, and the elastic clamping plates are in contact with the end portions of the limiting columns.
[0013] Further, the mounting seat is provided with a supporting block at the bottom, the supporting block is provided with a plug hole in the middle, and the mounting seat is provided with a limiting slot which is located below the suction port.
[0014] Further, the spatula head is provided with a fixed block at the bottom, the fixed block is provided with a limiting plug rod at the left side, the limiting plug rod is provided with an elastic buckle at the left end, a second compression spring is sleeved on the limiting plug rod, the spatula head is slidingly inserted into the limiting slot at the left end, the limiting plug rod is slidingly inserted into the plug hole, the elastic buckle is clamped with the supporting block, and the second compression spring is supported between the fixed block and the supporting block.
[0015] The present application provides a wound debris collecting spatula with a negative pressure adsorption function, and has the following beneficial effects: The application discloses a surgical device for debridement of wounds, which comprises a handle, a hollow tube and a scraping spoon head.
[0016] In addition, when the hollow tube is assembled with the handle, the docking plug is inserted into the docking clasp, the elastic clamping plate is hung with the connecting hanger, and the elastic clamping plate and the connecting hanger are pulled by the rebounding of the tension spring, so that the hollow tube and the handle are stably connected.
[0017] In addition, the scraping spoon head and the limiting slot are matched with the limiting plug rod and the plug hole, and the elastic effect of the second compression spring is utilized, so that the scraping spoon head can be adjusted left and right. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.
[0019] The drawings described in the following description only relate to some embodiments of the application, and are not a limitation of the application.
[0020] In the drawings: Figure 1 A schematic view showing the overall structure of the application is shown; Figure 2 A schematic view showing the handle of the application is shown; Figure 3 A schematic view showing the docking clasp, the fixing frame, the connecting rod, the mounting sleeve and the limiting column of the application is shown; Figure 4 A schematic view showing the hollow tube and the scraping spoon head of the application is shown; Figure 5 A schematic view showing the elastic clamping plate, the fixing frame, the connecting rod, the mounting sleeve and the limiting column of the application is shown; Figure 6 The schematic diagram of the elastic card plate, the fixing frame and the connecting rod of the application is shown; Figure 7 The schematic diagram of the mounting sleeve and the limiting column in a split state of the application is shown; Figure 8 The schematic diagram of the hollow pipe of the application is shown; Figure 9 The schematic diagram of the spatula head of the application is shown.
[0021] List of reference signs: 1, handle; 101, power cord; 102, switch; 103, connecting sleeve; 104, butt joint clasp; 105, fixing frame; 1051, connecting hanging piece; 1052, pin shaft; 1053, mounting column; 106, connecting rod; 1061, tension spring; 1062, rotating sleeve; 107, mounting sleeve; 1071, fixed seat; 1072, limiting through slot; 108, limiting column; 1081, pressing plate; 1082, supporting plate; 1083, first compression spring; 1084, limiting block; 2, hollow pipe; 201, mounting seat; 202, adsorption port; 203, connecting insertion pipe; 204, sealing sleeve; 205, butt joint insertion plate; 206, elastic card plate; 207, supporting block; 208, insertion hole; 209, limiting slot; 3, spatula head; 301, fixed block; 302, limiting insertion rod; 303, elastic clasp; 304, second compression spring. DETAILED DESCRIPTION
[0022] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.
[0023] Embodiment one: please refer to Figures 1 to 9 : The present application provides a wound debris collecting spatula with negative pressure adsorption function, comprising: a handle 1, the rear end of the handle 1 is provided with a power cord 101, one side of the outer periphery of the handle 1 is provided with a control switch 102, and the front end of the handle 1 is provided with a connecting sleeve 103; a negative pressure aspirator is arranged in the handle 1, the negative pressure aspirator is commonly electrically connected with the power cord 101, and the negative pressure aspirator is connected with the connecting sleeve 103 and controlled and adjusted through the switch 102; The handle 1 is provided with a butt joint snap ring 104 at the front end, and the butt joint snap ring 104 is located at the position of the connection between the handle 1 and the hollow pipe 2. Two fixing frames 105 are arranged in the butt joint snap ring 104 and are symmetrically distributed upwards and downwards. Two connecting rods 106 are arranged on the fixing frame 105. Two installation sleeves 107 are arranged on the outer periphery of the butt joint snap ring 104 and are symmetrically distributed upwards and downwards. Limiting columns 108 are arranged on the installation sleeve 107. The handle 1 is provided with a hollow pipe 2 at the front part. The hollow pipe 2 is provided with a spatula head 3 at the front part.
[0024] In the embodiment, as shown in Figure 2 and Figure 4 , the hollow pipe 2 is provided with an installation seat 201 at the front end. The installation seat 201 is provided with a suction port 202, which corresponds to the spatula head 3. The hollow pipe 2 is provided with a connecting insertion pipe 203, which communicates with the suction port 202. The rear end of the connecting insertion pipe 203 is provided with a sealing sleeve 204, which is slidably inserted into the connecting sleeve 103. In the present application, the spatula head 3 contacts the wound surface of the patient, and the necrotic tissue, secretions, scabs or foreign matter debris are scraped off. At the same time, the switch 102 is turned on to provide a continuous and stable negative pressure suction force by the negative pressure suction device. The scraped debris and liquid can be sucked away by the suction port 202, and then pass through the connecting insertion pipe 203 and the connecting sleeve 103, and be temporarily collected and stored in the container of the handle 1.
[0025] In the embodiment, as shown in Figures 3 to 7 , the fixing frame 105 is provided with two connecting hangers 1051. The fixing frame 105 is provided with a pin shaft 1052, and the connecting hanger 1051 is rotatably connected to the fixing frame 105 through the pin shaft 1052. The connecting hanger 1051 is provided with an installation column 1053. The two connecting rods 106 are symmetrically distributed, and the opposite inner sides of the two connecting rods 106 are provided with a stretching spring 1061. The opposite outer ends of the two connecting rods 106 are provided with a rotating sleeve 1062, which is rotatably sleeved on the installation column 1053. The installation sleeve 107 is provided with a fixing seat 1071 at the top, and the fixing seat 1071 is connected with the butt joint snap ring 104. The installation sleeve 107 is a cylindrical cavity structure, and the side wall of the installation sleeve 107 is provided with two limiting through grooves 1072, which are symmetrically distributed. The limiting column 108 is provided with a pressing plate 1081 at one end, and is provided with a supporting plate 1082, and is sleeved with a first compression spring 1083, and the outer periphery of the supporting plate 1082 is provided with two limiting blocks 1084, the limiting column 108 is slidably penetrated through the fixing seat 1071 and the butt joint clasp 104, and the supporting plate 1082 and the first compression spring 1083 are located in the mounting sleeve 107, and the first compression spring 1083 is supported between the bottom wall of the mounting sleeve 107 and the supporting plate 1082, and the supporting plate 1082 is slidably connected with the limiting through slot 1072 of the mounting sleeve 107 through the limiting block 1084; The hollow pipe 2 is provided with two butt joint plugs 205 at the rear end, and the butt joint plugs 205 are inserted into the butt joint clasp 104, the butt joint plugs 205 are in an arc structure, and two elastic clamping plates 206 are arranged between the two butt joint plugs 205, the elastic clamping plates 206 are hung with the connecting hanging piece 1051, and the elastic clamping plates 206 are in contact with the end of the limiting column 108, when the hollow pipe 2 and the handle 1 are assembled, the butt joint plugs 205 are inserted into the butt joint clasp 104, the elastic clamping plates 206 are hung with the connecting hanging piece 1051, and the elastic clamping plates 206 are pulled by the elastic recovery of the stretching spring 1061, so that the hollow pipe 2 and the handle 1 are stably connected, when the hollow pipe 2 and the handle 1 are disassembled, the upper and lower pressing plates 1081 are pressed manually, the elastic clamping plates 206 are pushed by the limiting column 108 to be disengaged from the connecting hanging piece 1051, and the butt joint plugs 205 are pulled forward to be separated from the butt joint clasp 104, so that the disassembly process of the hollow pipe 2 and the handle 1 is completed, the installation and disassembly are convenient, and the structure is more reasonable.
[0026] In the embodiment two, on the basis of the embodiment one, as shown in Figure 8 and Figure 9 The mounting seat 201 is provided with a supporting block 207 at the bottom, the supporting block 207 is provided with a insertion hole 208 in the middle, the mounting seat 201 is provided with a limiting slot 209, and the limiting slot 209 is located below the adsorption port 202; The scraping spoon head 3 is provided with a fixing block 301 at the bottom, the fixing block 301 is provided with a limiting insertion rod 302 at the left side, the limiting insertion rod 302 is provided with an elastic buckle 303 at the left end, the limiting insertion rod 302 is sleeved with a second compression spring 304, the scraping spoon head 3 is slidably inserted into the limiting slot 209 at the left end, the limiting insertion rod 302 is slidably inserted into the insertion hole 208, the elastic buckle 303 is clamped with the supporting block 207, and the second compression spring 304 is supported between the fixing block 301 and the supporting block 207, in the application, the scraping spoon head 3 and the limiting slot 209 are matched with the limiting insertion rod 302 and the insertion hole 208, and the elastic effect of the second compression spring 304 can make the scraping spoon head 3 float left and right, and can automatically adjust the position according to the hardness of the contacted tissue, so that the sharp edge of the scraping spoon head 3 always maintains the best contact angle with the necrotic tissue.
[0027] The working principle of the embodiment is as follows: when in use, the scraping spoon head 3 contacts the wound of a patient to scrape off necrotic tissue, secretion crusts or foreign matter debris, and at the same time, the switch 102 is turned on to enable the negative pressure aspirator to provide continuous and stable negative pressure suction, so that the scraped debris and liquid can be sucked away by the suction port 202, and then temporarily collected and stored in the container of the handle 1 through the connecting tube 203 and the connecting sleeve 103; when the hollow tube 2 is assembled with the handle 1, the docking plug plate 205 is inserted into the docking clasp 104, at the same time, the elastic clamping plate 206 is hung with the connecting hanger 1051, and the elastic clamping plate 206 is pulled away from the connecting hanger 1051 by the rebounding pulling action of the tension spring 1061, so that the hollow tube 2 and the handle 1 are stably connected; when the hollow tube 2 is disassembled from the handle 1, the upper and lower pressing plates 1081 are manually pressed, the elastic clamping plate 206 is pushed away from the connecting hanger 1051 by the limiting column 108, and at the same time, the hollow tube 2 is pulled forward to make the docking plug plate 205 disengage from the docking clasp 104, so that the disassembly process of the hollow tube 2 and the handle 1 is completed, the installation and disassembly are convenient, and the structure is more reasonable; the scraping spoon head 3 and the limiting slot 209 are matched with the limiting plug rod 302 and the plug hole 208, and the scraping spoon head 3 can be adjusted left and right by the elastic action of the second compression spring 304, so that the position of the scraping spoon head 3 can be automatically adjusted according to the hardness of the contacted tissue, and the sharp edge of the scraping spoon head 3 can always maintain the best contact angle with the necrotic tissue.
[0028] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.
Claims
1. A wound debris collection curette having a negative pressure adsorption function, characterized by, Include: Handle (1), the handle (1) rear end is equipped with power cord (101), handle (1) outer periphery one side is equipped with control switch (102), handle (1) front end is equipped with connecting sleeve (103);The handle (1) is equipped with negative pressure aspirator in, and negative pressure aspirator is commonly electrically connected with power cord (101), and is controlled and is adjusted through switch (102), and negative pressure aspirator is connected with connecting sleeve (103); The handle (1) front part is equipped with hollow pipe (2);The hollow pipe (2) front part is equipped with spatula head (3).
2. The wound debris collecting curette with negative pressure adsorption function according to claim 1, characterized in that, The handle (1) front end is equipped with butt joint snap ring (104), and butt joint snap ring (104) is located at the position of handle (1) and hollow pipe (2) connection, and butt joint snap ring (104) is equipped with two fixed frame (105) in, and two fixed frame (105) are symmetrically distributed in an upper and lower mode, and two fixed frame (105) are equipped with two connecting rods (106) on, and butt joint snap ring (104) outer periphery is equipped with two installation sleeves (107), and two installation sleeves (107) are symmetrically distributed in an upper and lower mode, and installation sleeve (107) is equipped with limit post (108) on.
3. The wound debris collecting curette with negative pressure adsorption function according to claim 2, characterized in that, The fixed frame (105) is equipped with two connecting hangers (1051) on, and the fixed frame (105) is equipped with pin shaft (1052), and the connecting hanger (1051) is rotatably connected with the fixed frame (105) through the pin shaft (1052), and the connecting hanger (1051) is equipped with mounting column (1053) on.
4. The wound debris collecting curette with negative pressure adsorption function according to claim 3, characterized in that, Two connecting rods (106) are symmetrically distributed, and two connecting rods (106) are equipped with tension spring (1061) on opposite inner sides, and two connecting rods (106) are equipped with rotating sleeve (1062) on opposite outer ends, and rotating sleeve (1062) is sleeved on mounting column (1053).
5. The wound debris collecting curette with negative pressure adsorption function according to claim 4, characterized in that, The installation sleeve (107) top is equipped with fixed seat (1071), and fixed seat (1071) is connected with butt joint snap ring (104), and installation sleeve (107) is a cylindrical cavity structure, and the side wall of installation sleeve (107) is equipped with two limit through grooves (1072), and two limit through grooves (1072) are symmetrically distributed in an upper and lower mode.
6. The wound debris collecting curette with negative pressure adsorption function according to claim 5, characterized in that, The limit post (108) one end is equipped with pressing plate (1081), and the limit post (108) is equipped with support plate (1082) on, and the limit post (108) is sleeved with first compression spring (1083), and the outer periphery of support plate (1082) is equipped with two limit blocks (1084), and the limit post (108) is slidably penetrated through fixed seat (1071) and butt joint snap ring (104), and support plate (1082) and first compression spring (1083) are located in installation sleeve (107), and first compression spring (1083) is supported between the bottom wall of installation sleeve (107) and support plate (1082), and support plate (1082) is slidably connected with the limit through groove (1072) of installation sleeve (107) through limit block (1084).
7. The wound debris collecting curette with negative pressure adsorption function according to claim 1, characterized in that, The hollow pipe (2) is provided with a mounting seat (201) at the front end, the mounting seat (201) is provided with a suction port (202), the suction port (202) corresponds to the spatula head (3), the hollow pipe (2) is provided with a connecting plug (203) inside, the connecting plug (203) communicates with the suction port (202), the connecting plug (203) is provided with a sealing sleeve (204) at the rear end, and the sealing sleeve (204) is slidably inserted into the connecting sleeve (103).
8. The wound debris collecting curette with negative pressure adsorption function according to claim 7, characterized in that, The rear end of the hollow pipe (2) is provided with two butt plug plates (205), the butt plug plates (205) are inserted into the butt clamping ring (104), the butt plug plates (205) are in arc-shaped structures, two elastic clamping plates (206) are arranged between the two butt plug plates (205), the elastic clamping plates (206) are hung with the connecting hanging pieces (1051), and the elastic clamping plates (206) are in contact with the end portions of the limiting columns (108).
9. The wound debris collecting curette with negative pressure adsorption function according to claim 8, characterized in that, The mounting seat (201) is provided with a supporting block (207) at the bottom, the supporting block (207) is provided with a plug hole (208) in the middle, the mounting seat (201) is provided with a limiting groove (209), and the limiting groove (209) is located below the suction port (202).
10. The wound debris collecting curette with negative pressure adsorption function according to claim 9, characterized in that The spatula head (3) is provided with a fixed block (301) at the bottom, the fixed block (301) is provided with a limiting plug rod (302) at the left side, the limiting plug rod (302) is provided with an elastic buckle (303) at the left end, the limiting plug rod (302) is provided with a second compression spring (304), the spatula head (3) is slidably inserted into the limiting groove (209), the limiting plug rod (302) is slidably inserted into the plug hole (208), the elastic buckle (303) is clamped with the supporting block (207), and the second compression spring (304) is supported between the fixed block (301) and the supporting block (207).