Burn wound abrader
By designing a burn wound scab abrader that includes a scab abrading head, a pus removal component, and a miscellaneous collection component, the problems of scab splashing and infection are solved, and wound cleaning and drug absorption are improved.
Patent Information
- Application Number
- CN202211460767.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-16
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2042-11-16
AI Technical Summary
During the scab abrasion and pus removal process, the existing scab abraders easily cause the scab to splash and scatter around the wound surface, increasing the risk of infection. In addition, the scab on the wound surface affects the absorption of drugs and the healing effect.
A burn wound scab abrader is designed, which includes a scab abrading head, a pus removal component, a scab abrading mechanism and a miscellaneous collection component. The pus removal component is used to remove pus under the scab, the scab abrading mechanism is used to drive the scab abrading head to rotate, and the miscellaneous collection component is used to collect the scab to prevent it from scattering.
Effectively remove pus under the scab, prevent the scab from falling off, reduce the risk of infection, improve the cleanliness of the wound, and promote drug absorption and healing.
Smart Images

Figure CN115721384B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of scab grinders, in particular to a scab grinder for burn wounds. BACKGROUND
[0002] During the recovery process of burn wounds, the secretions produced by burn wounds form a scab layer with high hardness on the surface layer of the wounds, and a large area of scabbed wounds is prone to form subscab hydrops at the wound site, leading to acute microcirculation disorder, and in severe cases, it can cause the patient to develop serious infections, sepsis, secondary organ damage (renal failure, respiratory failure, intestinal dysfunction, etc.) and other conditions that endanger the patient's life safety. Usually, such scabs will fall off within a month, and if they do not fall off, artificial debridement is needed to promote the fall-off. Because of the scabbed wounds, the external use of drugs is not easy to absorb, which seriously affects the healing of the wounds.
[0003] However, we found in practical use that the existing scab grinders usually include a holding rod and a scab grinding head arranged on the holding rod. When in use, the operator holds the holding rod and rotates or moves the scab grinding head to cause relative friction between the scab grinding head and the scab layer, thereby completing the scab grinding work on the scab layer. Depending on the burn condition and the post-care condition, the position below the wound mainly exists in the following two different situations. One is that the scab is relatively dry, there is no purulent secretion under the scab, and there is no redness and swelling around. The other is that the scabbed wound position is infected, and there is purulent secretion under the scab. However, when the existing scab grinders are used to grind the scabbed position that needs to be ground and purged, the purulent secretion is prone to seep out, and thus splashing occurs during scab grinding. At the same time, during scab grinding, the ground scab will scatter around, which may come into contact with the wound, thereby further causing infection at the wound site. Therefore, we propose a scab grinder for burn wounds. SUMMARY
[0004] The present application aims to provide a scab grinder for burn wounds to solve the problems raised in the background art.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a burn wound scab scraper, comprising a scab scraper body and a scab scraper head, wherein the scab scraper head is arranged in the scab scraper body; an outer tube, wherein the outer tube is arranged on the scab scraper body; a pus removal component, wherein the pus removal component is arranged on the scab scraper body, the scab scraper head is connected to the scab scraper body, a scab scraper mechanism, wherein the scab scraper mechanism is arranged in the scab scraper body, and a miscellaneous component, wherein the miscellaneous component is arranged on the outer tube, wherein the miscellaneous component can be used to centrally collect the scabs produced during pus removal and scab scraping, which is different from the existing technology. When medical staff perform scab scraping on the patient's burn wound, they can use the pus removal component and the scab scraper head to remove pus under the scab, pull the scab scraper mechanism upward to drive the scab scraper mechanism to connect with the scab scraper head, and then drive the scab scraper head to rotate, thereby preventing the scabs produced from being scattered around and further causing infection to the wound.
[0006] Preferably, the scab abrasion mechanism includes a shift seat movably arranged in the scab abrasion body, a driving motor is provided on the shift seat, a main shaft is rotatably provided at the bottom of the driving motor, a switching component is provided between the main shaft and the scab abrasion head, and the switching component is used to drive the scab abrasion head to rotate synchronously with the main shaft;
[0007] The scab grinding body is provided with a locking piece, which is connected to the shift seat. The shift seat is locked and positioned by using the locking piece in conjunction with the switching assembly.
[0008] Preferably, the scab grinding head has a linear structure, and shifting grooves are provided on both sides of the scab grinding head. The switching assembly includes two wedge-shaped sliders respectively arranged in the shifting grooves, and positioning rods are provided on opposite sides of the two wedge-shaped sliders. The positioning rods movably penetrate the scab grinding head, and the scab grinding body is provided with insertion grooves respectively used in conjunction with the positioning rods.
[0009] An extrusion piece is provided in the abrasion scab body, and the extrusion piece is used to drive the wedge-shaped slider to shift to both sides respectively;
[0010] The main shaft is provided with a switching member, and the main shaft drives the scab grinding head to rotate by utilizing the switching member.
[0011] Preferably, the extrusion member includes a U-shaped push rod slidably arranged in the displacement chute on both sides, the two ends of the U-shaped push rod are respectively in contact with the wedge-shaped slider, and the displacement chute is provided with a return spring, and the two ends of the return spring are respectively connected to the wedge-shaped slider and the scab grinding head;
[0012] The main shaft is provided with an extrusion disk, and the bottom of the extrusion disk is provided with a plurality of balls, and the balls are in contact with the U-shaped ejector rod.
[0013] Preferably, the main shaft moves through the U-shaped push rod, the switching member includes a polygonal block arranged at the bottom of the main shaft, the U-shaped push rod is provided with a polygonal notch matching the polygonal block, and a limit plate is provided at the bottom of the polygonal block.
[0014] Preferably, the locking member includes a lifting frame arranged on the shift seat, and the lifting frame is slidably arranged on the scab grinding body. The shift seat is provided with a plurality of installation grooves for installation and positioning, and extrusion springs are provided in the installation grooves. Positioning balls are provided at the ends of the extrusion springs, and positioning holes that cooperate with the positioning balls are provided in the scab grinding body.
[0015] Preferably, the pus removal component includes a curved rod slidably arranged on the outer tube, the end of the curved rod is connected to the shift seat, and the curved rod is movable through the side wall of the scab removal body, and the curved rod is provided with an arc plate for removing pus from the wound surface, and the curved rod is provided with an adjusting part, and the adjusting part is used to drive the arc plate to rotate.
[0016] Preferably, the adjusting member includes a fixing frame arranged at the end of the bent rod, a rotating shaft is rotatably arranged on the fixing frame, the arc plate is arranged on the rotating shaft, a rack is arranged on the outer tube, and a pinion is arranged on the rotating shaft to cooperate with the rack.
[0017] Preferably, the collecting assembly includes a fixed cavity provided on the outer tube, a connecting shaft and a fixed shaft are provided in the fixed cavity, bevel gears for use with each other are provided on the connecting shaft and the fixed shaft, and fan blades are provided on the fixed shaft;
[0018] A transmission shaft is provided in the abrasion scab body, a transmission member is provided in the fixed cavity, the transmission member is connected to the main shaft, and the fixed shaft and the main shaft are driven to rotate synchronously by the transmission member.
[0019] Preferably, the transmission member includes gear 1 arranged on the main shaft, gear 2 is arranged on the transmission shaft for use with gear 1, pulleys are arranged on the transmission shaft and the connecting shaft, and a synchronous belt is arranged between the pulleys.
[0020] The present invention has at least the following beneficial effects:
[0021] Different from the existing technology, when medical staff are performing scab abrasion on the patient's burn wound, they can use the pus removal component and the scab abrasion head to remove pus under the scab, pull the scab abrasion mechanism upward to drive the scab abrasion mechanism to connect with the scab abrasion head, and then drive the scab abrasion head to rotate, thereby preventing the scabs from being scattered around and further causing infection to the wound. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1It is a schematic diagram of the overall structure of the present invention;
[0023] Figure 2 For the present invention Figure 1 Another structural diagram;
[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the local cross-section structure;
[0025] Figure 4 This is a schematic diagram of the enlarged structure of area A of the present invention;
[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the main shaft of the present invention;
[0027] Figure 6 For the present invention Figure 5 Schematic diagram of partial structural explosion.
[0028] Figure 7 For the present invention Figure 1 Explosion diagram of part of the structure;
[0029] Figure 8 This is a schematic diagram of the enlarged structure of area B of the present invention;
[0030] Figure 9 This is a schematic diagram of the structure of the shift seat of the present invention;
[0031] Figure 10 For the present invention Figure 9 Schematic diagram of the local cross-section structure;
[0032] Figure 11 For the present invention Figure 2 Schematic diagram of the partial cross-section structure.
[0033] Figure 12 It is a partial structural diagram of the integrated components of the present invention.
[0034] In the figure: 1-scab abrasion body; 2-scab abrasion mechanism; 21-shift seat; 22-drive motor; 23-spindle; 3-switching assembly; 31-wedge-shaped slider; 32-positioning rod; 33-insertion groove; 4-extrusion member; 41-U-shaped ejector rod; 42-return spring; 43-extrusion disk; 44-ball; 5-switching member; 51-polygonal block; 52-polygonal notch; 53-limiting plate; 6-locking member; 61-lifting frame; 62-extrusion spring; 63-positioning ball; 64-positioning hole; 7-pus removal component; 71-bent rod; 72-arc plate; 8-adjusting part; 81-fixed frame; 82-rotating shaft; 83-rack; 84-pinion; 9-collecting component; 91-fixed cavity; 92-connecting shaft; 93-fixed shaft; 94-bevel gear; 95-fan blade; 96-transmission shaft; 10-transmission part; 101-gear 1; 102-gear 2; 103-pulley; 104-synchronous belt; 11-scab abrading head; 12-outer tube. DETAILED DESCRIPTION
[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0036] Example 1
[0037] See also Figure 1-12 , the present invention provides a technical solution:
[0038] The burn wound scab abrader comprises a scab abrading body 1, which is a common structure and will not be described in detail here.
[0039] The scab grinding head 11 is arranged in the scab grinding body 1;
[0040] An outer tube 12, the outer tube 12 being arranged on the scab body 1;
[0041] The pus removal component 7 is arranged on the scab grinding body 1, and the scab grinding head 11 is connected to the scab grinding body 1. The pus removal component 7 and the scab grinding head 11 can be used to remove pus under the scab;
[0042] The pus removal component 7 includes a curved rod 71 slidably arranged on the outer tube 12, the end of the curved rod 71 is connected to the shift seat 21, and the curved rod 71 movably penetrates the side wall of the scab abrasion body 1, and is provided with an arc-shaped plate 72 for removing pus from the wound surface. The curved rod 71 is provided with an adjustment member 8, and the adjustment member 8 is used to drive the arc-shaped plate 72 to rotate;
[0043] The adjusting member 8 includes a fixing frame 81 provided at the end of the bent rod 71, a rotating shaft 82 is rotatably provided on the fixing frame 81, the arc-shaped plate 72 is provided on the rotating shaft 82, a rack 83 is provided on the outer tube 12, and a pinion 84 is provided on the rotating shaft 82 for use with the rack 83;
[0044] The scab abrasion mechanism 2 is disposed in the scab abrasion body 1. The scab abrasion mechanism 2 is pulled upward to connect with the scab abrasion head 11, thereby driving the scab abrasion head 11 to rotate;
[0045] The scab abrasion mechanism 2 includes a shift seat 21 movably arranged in the scab abrasion body 1, a drive motor 22 is provided on the shift seat 21, a main shaft 23 is rotatably provided at the bottom of the drive motor 22, and a switching component 3 is provided between the main shaft 23 and the scab abrasion head 11, and the switching component 3 is used to drive the scab abrasion head 11 to rotate synchronously with the main shaft 23;
[0046] The scab grinding head 11 has a linear structure, and shift chutes are provided on both sides of the scab grinding head 11. The switching component 3 includes two wedge-shaped sliders 31 respectively arranged in the shift chutes. Positioning rods 32 are provided on opposite sides of the two wedge-shaped sliders 31. The positioning rods 32 movably penetrate the scab grinding head 11, and the scab grinding body 1 is provided with insertion grooves 33 respectively used to cooperate with the positioning rods 32. A limiting protrusion is provided in the shift chute for limiting the wedge-shaped slider 31 to prevent it from shifting outward due to the centrifugal force generated when the scab grinding head 11 rotates. It is not shown in the figure.
[0047] The abrasion scab body 1 is provided with an extrusion member 4, which is used to drive the wedge-shaped slider 31 to shift to both sides.
[0048] The extrusion member 4 includes a U-shaped push rod 41 slidably arranged in the displacement chute on both sides, and the two ends of the U-shaped push rod 41 are respectively in contact with the wedge-shaped slider 31. The displacement chute is provided with a return spring 42, and the two ends of the return spring 42 are respectively connected to the wedge-shaped slider 31 and the scab grinding head 11;
[0049] The main shaft 23 is provided with an extrusion plate 43 , and a plurality of balls 44 are provided at the bottom of the extrusion plate 43 , and the balls 44 are in contact with the U-shaped ejector rod 41 ;
[0050] The main shaft 23 is provided with a switching member 5, and the main shaft 23 drives the scab grinding head 11 to rotate by utilizing the switching member 5;
[0051] The main shaft 23 movably passes through the U-shaped push rod 41. The switching member 5 includes a polygonal block 51 provided at the bottom of the main shaft 23. The U-shaped push rod 41 is provided with a polygonal notch 52 that matches the polygonal block 51. A limit plate 53 is provided at the bottom of the polygonal block 51.
[0052] The scab grinding body 1 is provided with a locking member 6, which is connected to the shift seat 21. The locking member 6 cooperates with the switching component 3 to lock and position the shift seat 21.
[0053] The locking member 6 includes a lifting frame 61 provided on the shift seat 21, and the lifting frame 61 is slidably provided on the scab grinding body 1. The shift seat 21 is provided with a plurality of mounting grooves for mounting and positioning, each of which is provided with an extrusion spring 62. The ends of the extrusion spring 62 are provided with a positioning ball 63. The scab grinding body 1 is provided with a positioning hole 64 that cooperates with the positioning ball 63.
[0054] A collection component 9 is provided on the outer tube 12 and can be used to centrally collect the scabs produced during pus removal and scab grinding;
[0055] The collecting assembly 9 includes a fixed cavity 91 provided on the outer tube 12, a connecting shaft 92 and a fixed shaft 93 are provided in the fixed cavity 91, bevel gears 94 used in conjunction with the connecting shaft 92 and the fixed shaft 93 are provided on the connecting shaft 92 and the fixed shaft 93, and a fan blade 95 is provided on the fixed shaft 93. Concave structures are provided on both sides of the fixed cavity 91 for better gripping by medical staff. The bottom of the fixed cavity 91 is a conical structure, and a filter is installed at the lower end to ensure smooth airflow and facilitate the cleaning of scabs.
[0056] A transmission shaft 96 is provided in the abrasion scab body 1, and a transmission member 10 is provided in the fixed cavity 91. The transmission member 10 is connected to the main shaft 23, and the fixed shaft 93 and the main shaft 23 are driven to rotate synchronously by the transmission member 10.
[0057] The transmission member 10 includes a gear 101 arranged on the main shaft 23, a gear 2 102 is arranged on the transmission shaft 96 for use with the gear 101, pulleys 103 are arranged on both the transmission shaft 96 and the connecting shaft 92, and a synchronous belt 104 is arranged between the pulleys 103.
[0058] When in use, the scab breaker is in the initial state. In the initial state, the positioning rods 32 are respectively inserted into the two sides of the scab breaker body 1. At this time, the scab breaker head 11 is fixed and cannot be rotated. The medical staff will adjust the use according to the wound condition. Specifically, when the wound contains a large amount of purulent secretions, the scab breaker is placed on the patient's wound and the arc plate 72 is placed at the front end of the moving direction. The drive motor 22 is started to start working. The rotation of the drive motor 22 will drive the main shaft 23 to rotate. The gear 1 located on the main shaft 23 is rotated. 01 will drive the second gear 102 and the transmission shaft 96 to rotate, and under the action of the pulley 103 and the synchronous belt 104, the connecting shaft 92 rotates. Under the action of the two meshing bevel gears 94, the fan blades 95 rotate and provide negative pressure, thereby adsorbing and collecting the scabs produced by the contact between the scab grinding head 11 and the scab during the displacement and pus removal process. At this time, the ball 44 under the extrusion disk 43 contacts the U-shaped push rod 41, and the main shaft 23 drives the extrusion disk 43 to rotate, but the U-shaped push rod 41 will not rotate accordingly due to the limit of the positioning rod 32;
[0059] After the pus removal work is completed, the lifting frame 61 is pulled upward to make the positioning ball 63 engage with the upper positioning hole 64. At this time, the bent rod 71 is displaced accordingly, and during the displacement process, the displacement seat 21 drives the arc plate 72 to shift upward. Because the pinion 84 is engaged with the rack 83, the arc plate 72 will rotate outward to prevent the arc plate 72 from rubbing the wound surface when the scab abrading head 11 is working. At the same time, the gear 1 101 is displaced with the main shaft 23, but is engaged with the gear 2 102, which can drive the fan blade 95 to perform the adsorption work;
[0060] The extrusion plate 43 shifts with the main shaft 23. Under the action of the return spring 42, the wedge-shaped slider 31 and the positioning rod 32 will shift inward, and when shifting, the U-shaped push rod 41 will be pushed upward, but at this time, the U-shaped push rod 41 does not contact the ball 44 at the bottom of the extrusion plate 43, and the polygonal notch 52 is engaged with the polygonal block 51, so that the main shaft 23 drives the U-shaped push rod 41 and the scab grinding head 11 to rotate, thereby realizing the scab grinding work. The setting of the bottom limit plate 53 prevents the U-shaped push rod 41 from separating from the main shaft 23 when rotating. Similarly, during the process, the fan blades 95 perform adsorption work.
[0061] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A burn wound scab abrader, comprising a scab abrader body (1), characterized in that: Also includes A scab abrasion head (11), wherein the scab abrasion head (11) is arranged in the scab abrasion body (1); An outer tube (12), the outer tube (12) being arranged on the abrasion scab body (1); A pus removal component (7), wherein the pus removal component (7) is arranged on the scab abrasion body (1), and the scab abrasion head (11) is connected to the scab abrasion body (1). The pus removal component (7) and the scab abrasion head (11) can be used to remove pus under the scab; A scab abrading mechanism (2), wherein the scab abrading mechanism (2) is arranged in the scab abrading body (1), and the scab abrading mechanism (2) is pulled upward to drive the scab abrading mechanism (2) to connect with the scab abrading head (11), thereby driving the scab abrading head (11) to rotate; A collection component (9), wherein the collection component (9) is arranged on the outer tube (12), and the scabs produced during pus removal and scab abrasion can be collected in a centralized manner by using the collection component (9), and the scab abrasion mechanism (2) comprises a shift seat (21) movably arranged in the scab abrasion body (1), a driving motor (22) is arranged on the shift seat (21), a main shaft (23) is arranged at the bottom of the driving motor (22), and a switching component (3) is arranged between the main shaft (23) and the scab abrasion head (11), and the switching component (3) is used to drive the scab abrasion head (11) to rotate synchronously with the main shaft (23); The scab grinding body (1) is provided with a locking member (6), the locking member (6) is connected to the shift seat (21), and the shift seat (21) is locked and positioned by using the locking member (6) in conjunction with the switching assembly (3). The scab grinding head (11) is a linear structure, and shift chutes are provided on both sides of the scab grinding head (11). The switching assembly (3) includes two wedge-shaped sliders (31) respectively arranged in the shift chutes, and positioning rods (32) are provided on opposite sides of the two wedge-shaped sliders (31). The positioning rods (32) are movable and penetrate the scab grinding head (11), and the scab grinding body (1) is provided with plug-in grooves (33) respectively used in conjunction with the positioning rods (32). An extrusion piece (4) is provided in the abrasion scab body (1), and the extrusion piece (4) is used to drive the wedge-shaped slider (31) to shift to both sides respectively; The main shaft (23) is provided with a switching member (5), and the main shaft (23) is used to drive the grinding head (11) to rotate by using the switching member (5). The extrusion member (4) includes a U-shaped push rod (41) slidably arranged in the displacement chute on both sides, and the two ends of the U-shaped push rod (41) are respectively fitted with the wedge-shaped slider (31). The displacement chute is provided with a return spring (42), and the two ends of the return spring (42) are respectively connected to the wedge-shaped slider (31) and the grinding head (11); The main shaft (23) is provided with an extrusion disk (43), and the bottom of the extrusion disk (43) is provided with a plurality of balls (44), and the balls (44) are in contact with the U-shaped top rod (41). The main shaft (23) moves through the U-shaped top rod (41), and the switching member (5) includes a polygonal block (51) provided at the bottom of the main shaft (23). The U-shaped top rod (41) is provided with a polygonal notch (52) that matches the polygonal block (51), and a limit plate (53) is provided at the bottom of the polygonal block (51).
2. The burn wound eschar abrader according to claim 1, characterized in that: The locking member (6) includes a lifting frame (61) arranged on the shift seat (21), and the lifting frame (61) is slidably arranged on the scab grinding body (1). The shift seat (21) is provided with a plurality of installation grooves for installation and positioning, and each installation groove is provided with an extrusion spring (62). The end of each extrusion spring (62) is provided with a positioning ball (63), and the scab grinding body (1) is provided with a positioning hole (64) that matches the positioning ball (63).
3. The burn wound eschar abrader according to claim 2, characterized in that: The pus removal component (7) includes a curved rod (71) slidably arranged on the outer tube (12), the end of the curved rod (71) is connected to the displacement seat (21), and the curved rod (71) movably penetrates the side wall of the scab-removing body (1), and an arc plate (72) for removing pus from the wound surface is provided on the curved rod (71), and an adjusting member (8) is provided on the curved rod (71), and the adjusting member (8) is used to drive the arc plate (72) to rotate.
4. The burn wound eschar grinding device according to claim 3, characterized in that: The adjusting member (8) includes a fixing frame (81) arranged at the end of the bent rod (71), a rotating shaft (82) is rotatably arranged on the fixing frame (81), the arc plate (72) is arranged on the rotating shaft (82), a rack (83) is arranged on the outer tube (12), and a pinion (84) used in conjunction with the rack (83) is arranged on the rotating shaft (82).
5. The burn wound eschar abrader according to claim 4, characterized in that: The collecting assembly (9) comprises a fixed cavity (91) provided on the outer tube (12), a connecting shaft (92) and a fixed shaft (93) being provided in the fixed cavity (91), bevel gears (94) being provided on the connecting shaft (92) and the fixed shaft (93) for use in conjunction with each other, and a fan blade (95) being provided on the fixed shaft (93); A transmission shaft (96) is provided in the abrasion scab body (1), a transmission member (10) is provided in the fixed cavity (91), and the transmission member (10) is connected to the main shaft (23). The transmission member (10) drives the fixed shaft (93) and the main shaft (23) to rotate synchronously.
6. The burn wound eschar abrader according to claim 5, characterized in that: The transmission member (10) includes a gear 1 (101) arranged on the main shaft (23), a gear 2 (102) for use with the gear 1 (101) arranged on the transmission shaft (96), pulleys (103) arranged on both the transmission shaft (96) and the connecting shaft (92), and a synchronous belt (104) arranged between the pulleys (103).
Citation Information
Patent Citations
Medical burn injury eschar abrading device
CN107432754A
Medical burn scab grinding device
CN111887943A