Protective arthroscope planer
By introducing a mesh planing window and elastic protective mesh into the arthroscopic planer, combined with negative pressure suction and pressure sensor, the risk of soft tissue aspiration caused by the large window of the existing planer is solved, and a safe and efficient planing effect is achieved.
Patent Information
- Application Number
- CN202510966935.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2025-09-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The shaving window of existing arthroscopic shaving devices is large, which makes it easy for soft tissues such as nerves and blood vessels to be sucked in, increasing the risk of surgery. In addition, there is a lack of active protection mechanism, and it is difficult to avoid accidental injuries by relying on the operator's experience to control the force.
A protective arthroscopic planer was designed, which uses a mesh planing window and elastic protective mesh, combined with a negative pressure suction mechanism and a pressure sensor. The shape memory alloy frame elastically expands to form a buffering protective layer when the pressure exceeds the standard, achieving dual protection of soft tissue, and efficient planing through a power drive module and transmission gear set.
It effectively prevents soft tissue aspiration, reduces the risk of injury, enables efficient and safe arthroscopic planing operations, and improves surgical safety.
Smart Images

Figure CN120616698A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of planers, in particular to a protective arthroscopic planer. Background Art
[0002] During arthroscopic surgery, the safety and efficiency of planers are key clinical challenges. Existing single- and double-tooth planers both utilize large 3-5mm planing windows. While the double-tooth type offers greater efficiency, both have significant drawbacks: The larger window easily draws soft tissue, such as nerves and blood vessels, into the planing area, increasing surgical risk. Furthermore, traditional planers lack active soft tissue protection mechanisms and rely on the surgeon's experience to control the force, making it difficult to avoid accidental damage. Therefore, a protective arthroscopic planer has been proposed. Summary of the Invention
[0003] Based on the technical problems existing in the background technology, the present invention proposes a protective arthroscopic planer.
[0004] The present invention proposes a protective arthroscopic planer, comprising a handle assembly, wherein the handle assembly is fixedly connected to a connecting tube, the other end of the connecting tube is fixedly connected to a blade shell, a planing blade mechanism is provided inside the blade shell, a mesh planing window is provided at the front end of the planing blade mechanism, the mesh planing window is composed of a plurality of grid hole arrays, an elastic protective mesh is fixedly connected to the inner side of the mesh planing window, a control module is provided in the handle assembly, and a negative pressure suction mechanism is provided at the bottom of the connecting tube.
[0005] Preferably, the elastic protective mesh is composed of a shape memory alloy frame and a medical silicone mesh, the shape memory alloy frame is elastically connected to the blade head shell, the medical silicone mesh is woven inside the shape memory alloy frame, and the shape memory alloy frame is electrically connected to the control module.
[0006] Preferably, the planing head mechanism includes a rotating planing blade, which is located at the top of the mesh planing window. A plurality of pressure sensors are fixedly connected to the outer wall of the head housing, and the pressure sensors are communicatively connected to the control module.
[0007] Preferably, a power drive module is provided in the handle assembly, one end of the power drive module is fixedly connected to a transmission gear set, the power drive module drives the rotating planing blade through the transmission gear set, and the power drive module is controlled by the control module.
[0008] Preferably, the negative pressure suction mechanism includes a material collection box and a negative pressure pump, the cutter head shell is set to be hollow, a detachable connecting pipe is fixedly connected between the material collection box and the connecting pipe, the negative pressure pump is fixedly connected to the bottom of the material collection box, and a material guide hose is fixedly connected between the material collection box and the cutter head shell.
[0009] Preferably, a mode adjustment knob and a control button are fixedly connected to the surface of the handle assembly, and a charging port is fixedly connected to one end of the handle assembly.
[0010] Preferably, when the pressure sensor detects that the pressure exceeds a certain value, the shape memory alloy frame is elastically expanded by the control module to form a buffer protection layer.
[0011] Compared with the prior art, the present invention provides a protective arthroscopic planer with the following beneficial effects: 1. This protective arthroscopic planer has a mesh planing window composed of multiple grid hole arrays, which decomposes the traditional large-size window into tiny windows, physically preventing the suction of soft tissues such as nerves and blood vessels. When the pressure sensor detects that the pressure exceeds the standard, the shape memory alloy frame of the elastic protective mesh is elastically expanded by the control module, driving the medical silicone mesh to form a buffering protective layer. The double protection reduces the risk of soft tissue injury.
[0012] 2. This protective arthroscopic planer has a negative pressure pump of a negative pressure suction mechanism that forms negative pressure at the mesh planing window through a material guide hose and a detachable connecting tube, and sucks the planing debris in real time. The power drive module drives the rotating planing blade to plan efficiently through a transmission gear set, and the control module adjusts the power and negative pressure according to the pressure sensor data to achieve the coordination of efficient planing and safety protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the main structure of a protective arthroscopic planer proposed by the present invention; Figure 2 This is a schematic side view of the structure of a protective arthroscopic planer proposed by the present invention; Figure 3 for Figure 2 A in the middle is an enlarged structural diagram; Figure 4 This is a schematic diagram of the bottom structure of a protective arthroscopic planer proposed by the present invention; Figure 5 This is a schematic diagram of the main structure of a shape memory alloy frame of a protective arthroscopic planer proposed in the present invention.
[0014] In the figure: 1 handle assembly, 2 charging port, 3 control module, 4 power drive module, 5 transmission gear set, 6 connecting pipe, 7 cutter head housing, 8 equipment cover, 9 material collection box, 10 material guide hose, 11 negative pressure pump, 12 control button, 13 detachable connecting pipe, 14 rotating planing blade, 15 shape memory alloy frame, 16 pressure sensor, 17 elastic protective mesh, 18 mesh planing window, 19 medical silicone mesh, 20 mode adjustment knob. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0016] Reference Figure 1-5 A protective arthroscopic planer comprises a handle assembly 1, the handle assembly 1 is fixedly connected to a connecting tube 6, the other end of the connecting tube 6 is fixedly connected to a blade shell 7, a planing blade mechanism is arranged inside the blade shell 7, a mesh planing window 18 is arranged at the front end of the planing blade mechanism, the mesh planing window 18 is composed of a plurality of grid hole arrays, an elastic protective mesh 17 is fixedly connected to the inner side of the mesh planing window 18, a control module 3 is arranged in the handle assembly 1, a negative pressure suction mechanism is arranged at the bottom of the connecting tube 6, the mesh planing window 18 is composed of a plurality of grid hole arrays, which decomposes the traditional large-size window into tiny windows, and prevents the suction of soft tissues such as nerves and blood vessels from the physical structure. When the pressure sensor 16 detects that the pressure exceeds the standard, the shape memory alloy frame 15 of the elastic protective mesh 17 is elastically expanded by the instruction of the control module 3, driving the medical silicone mesh 19 to form a buffer protection layer, and the double protection reduces the risk of soft tissue injury.
[0017] In the present invention, the elastic protective mesh 17 is composed of a shape memory alloy frame 15 and a medical silicone mesh 19. The shape memory alloy frame 15 is elastically connected to the blade housing 7. The medical silicone mesh 19 is woven inside the shape memory alloy frame 15. The shape memory alloy frame 15 is electrically connected to the control module 3. The elastic protective mesh 17 is limited to be composed of the shape memory alloy frame 15 and the medical silicone mesh 19, is elastically connected to the blade housing 7 and is controlled by the control module 3. It can be deployed for protection when the pressure exceeds the standard; The planing head mechanism includes a rotating planing blade 14, which is located at the top of the mesh planing window 18. A plurality of pressure sensors 16 are fixedly connected to the outer wall of the cutter head housing 7. The pressure sensors 16 are in communication with the control module 3. It is clear that the planing head mechanism includes a rotating planing blade 14, and the pressure sensors 16 on the outer wall of the cutter head housing 7 communicate with the control module 3 to achieve real-time monitoring of the planing pressure. A power drive module 4 is provided in the handle assembly 1. One end of the power drive module 4 is fixedly connected to a transmission gear set 5. The power drive module 4 drives the rotating planing blade 14 through the transmission gear set 5. The power drive module 4 is controlled by the control module 3. This indicates that the power drive module 4 in the handle assembly 1 drives the rotating planing blade 14 through the transmission gear set 5 and is regulated by the control module 3 to provide planing power. The negative pressure suction mechanism includes a material collection box 9 and a negative pressure pump 11. The cutter head housing 7 is set to be hollow. A detachable connecting pipe 13 is fixedly connected between the material collection box 9 and the connecting pipe 6. The negative pressure pump 11 is fixedly connected to the bottom of the material collection box 9. A material guide hose 10 is fixedly connected between the material collection box 9 and the cutter head housing 7. The negative pressure suction mechanism is composed of the material collection box 9, the negative pressure pump 11, the detachable connecting pipe 13 and the material guide hose 10 to achieve the collection and negative pressure suction of planing debris; The handle assembly 1 is fixedly connected to a mode adjustment knob 20 and a control button 12 on its surface, and a charging port 2 is fixedly connected to one end of the handle assembly 1, indicating that the handle assembly 1 is provided with a mode adjustment knob 20 and a control button 12 on its surface, and a charging port 2 is provided at one end, which facilitates switching of operation modes and charging of the device; When the pressure sensor 16 detects that the pressure exceeds a certain value, the shape memory alloy frame 15 is instructed by the control module 3 to elastically expand to form a buffer protection layer, emphasizing that when the pressure sensor 16 detects that the pressure exceeds the limit, the shape memory alloy frame 15 is instructed by the control module 3 to elastically expand to form a buffer protection layer, thereby improving the safety of the operation.
[0018] When in use, the device is charged through the charging interface 2. The operator holds the handle assembly 1 and starts the device through the mode adjustment knob 20 and the control button 12. The control module 3 controls the power drive module 4 to drive the rotating planing blade 14 to rotate through the transmission gear set 5. At the same time, the negative pressure pump 11 forms a negative pressure at the mesh planing window 18 of the blade shell 7 through the material guide hose 10 and the detachable connecting tube 13. During planing, the pressure sensor 16 monitors the pressure of the outer wall of the blade shell 7 in real time and transmits it to the control module 3. When the pressure exceeds a certain value, the control module 3 instructs the shape memory alloy frame 15 to elastically expand, driving the medical silicone mesh 19 to form a buffer protective layer. The debris generated by planing passes through the mesh planing window 18 and the material guide hose 10 into the collection box 9, realizing safe and efficient arthroscopic planing operation.
[0019] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A protective arthroscopic shaving device comprising a handle assembly (1), characterized in that: The handle assembly (1) is fixedly connected to a connecting tube (6), the other end of the connecting tube (6) is fixedly connected to a cutter head housing (7), a planing cutter head mechanism is provided inside the cutter head housing (7), a mesh planing window (18) is provided at the front end of the planing cutter head mechanism, the mesh planing window (18) is composed of a plurality of grid hole arrays, an elastic protective mesh (17) is fixedly connected to the inside of the mesh planing window (18), a control module (3) is provided inside the handle assembly (1), and a negative pressure suction mechanism is provided at the bottom of the connecting tube (6).
2. The protective arthroscopic shaver according to claim 1, characterized in that: The elastic protective mesh (17) is composed of a shape memory alloy frame (15) and a medical silicone mesh (19); the shape memory alloy frame (15) is elastically connected to the blade head housing (7); the medical silicone mesh (19) is woven inside the shape memory alloy frame (15); and the shape memory alloy frame (15) is electrically connected to the control module (3).
3. The protective arthroscopic shaver according to claim 1, characterized in that: The planing head mechanism comprises a rotating planing blade (14), the rotating planing blade (14) is located at the top of the mesh planing window (18), and a plurality of pressure sensors (16) are fixedly connected to the outer wall of the cutter head housing (7), and the pressure sensors (16) are communicatively connected to the control module (3).
4. The protective arthroscopic shaver according to claim 1, characterized in that: A power drive module (4) is provided in the handle assembly (1), one end of the power drive module (4) is fixedly connected to a transmission gear set (5), the power drive module (4) drives the rotating planing blade (14) via the transmission gear set (5), and the power drive module (4) is controlled by the control module (3).
5. The protective arthroscopic shaver according to claim 1, characterized in that: The negative pressure suction mechanism comprises a material collection box (9) and a negative pressure pump (11); the cutter head housing (7) is configured to be hollow; a detachable connecting pipe (13) is fixedly connected between the material collection box (9) and the connecting pipe (6); the negative pressure pump (11) is fixedly connected to the bottom of the material collection box (9); and a material guide hose (10) is fixedly connected between the material collection box (9) and the cutter head housing (7).
6. The protective arthroscopic shaver according to claim 1, characterized in that: The handle assembly (1) has a mode adjustment knob (20) and a control button (12) fixedly connected to its surface, and one end of the handle assembly (1) is fixedly connected to a charging interface (2).
7. The protective arthroscopic shaver according to claim 2, characterized in that: When the pressure sensor (16) detects that the pressure exceeds a certain value, the shape memory alloy frame (15) is elastically expanded by the control module (3) to form a buffer protection layer.