Adjustable intervertebral disc resecting device under endoscope

Abstract

The utility model discloses a reciprocating resecter of intervertebral disc under adjustable type spine endoscope relates to medical instrument technical field, including handle and support rod, the handle is installed with angle adjusting assembly at support rod junction, the front end of support rod is installed with depth adjusting assembly, the front end of depth adjusting assembly is installed with fixed base, the outside of depth adjusting assembly is installed with visual auxiliary assembly, the front end of fixed base is provided with reciprocating drive assembly, through the handle can drive worm drive worm wheel rotation, makes worm wheel drive pivot rotation adjusting adjusting piece and connecting piece, fixed base, reciprocating drive assembly and detachable cutting assembly rotation angle adjustment, thereby can adjust the angle of detachable cutting assembly to cutting site, adjust the attitude of equipment whole, promote surgical use convenience, utilize worm wheel and worm mode to drive simultaneously, can lock the angle of cutting edge while adjusting, promote the convenience of adjustment.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an adjustable reciprocating disc resection device for spinal endoscopy. Background Technology

[0002] In today's society, the incidence of spinal diseases is showing an increasing trend year by year. Among them, intervertebral disc lesions are one of the important causes of symptoms such as lower back and leg pain and limb numbness, which seriously affect patients' quality of life and work ability. Traditional surgical treatments for intervertebral discs, such as open discectomy, can alleviate patients' symptoms to a certain extent, but they have problems such as large surgical trauma, more bleeding, long postoperative recovery time, and potential damage to spinal stability.

[0003] With the continuous development of minimally invasive techniques, spinal endoscopic surgery has gradually become an important means of treating intervertebral disc diseases. It involves inserting an endoscope into the body through a tiny incision, enabling visualized manipulation of disc lesions. It offers advantages such as minimal trauma, less postoperative pain, and shorter hospital stays, making it popular among patients and doctors. However, existing spinal endoscopic disc resection instruments still have some limitations. For different patients, spinal anatomy varies, and the location, shape, and size of disc lesions also differ. Traditional instruments struggle to make precise angle and depth adjustments in the face of this diversity, thus affecting the accuracy and thoroughness of the surgery. Therefore, we propose an adjustable reciprocating disc resection device for spinal endoscopy. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an adjustable reciprocating disc resection device for spinal endoscopy, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an adjustable reciprocating disc resection device for spinal endoscopy, comprising a handle and a support rod, wherein an angle adjustment component is installed at the connection between the handle and the support rod, a depth adjustment component is installed at the front end of the support rod, a fixed seat is installed at the front end of the depth adjustment component, a visual aid component is installed outside the depth adjustment component, a reciprocating drive component is provided at the front end of the fixed seat, and a detachable cutting component is installed on the reciprocating drive component.

[0006] Preferably, the angle adjustment assembly includes a mounting base, a rotating shaft is rotatably mounted inside the mounting base, an adjusting component is fixedly connected to the rotating shaft inside the mounting base, a worm gear is fixedly sleeved at one end of the rotating shaft, a worm is meshed with one side of the worm gear, a mounting bracket is mounted on the outer wall of the mounting base outside the worm, and the upper end of the worm extends rotatably to the outside of the mounting bracket and is fixedly connected to a handle.

[0007] Preferably, the front end of the adjusting member is provided with a plug groove, the end of the support rod is rotatably connected to the inside of the plug groove, the outer wall of the adjusting member is provided with a threaded groove, the inside of the threaded groove is connected to the inside of the adjusting member, and a threaded rod is threadedly connected inside the threaded groove.

[0008] Preferably, the depth adjustment assembly includes two guide grooves formed at the front end of the support rod, and a guide rod is slidably installed inside each of the two guide grooves. A connector is fixedly connected to the front end of each of the two guide rods, and the front end of the connector is fixedly connected to a fixed seat. One of the guide rods has an external thread, and a threaded sleeve connected to the external thread is sleeved on the outside of the guide rod. The threaded sleeve is rotatably installed at the front end of the support rod.

[0009] Preferably, the visual aid component includes a light module and a camera mounted on the outer wall of the connector.

[0010] Preferably, the reciprocating drive assembly includes a slide groove disposed at the front end of the fixed seat, a lead screw rotatably mounted inside the slide groove, two sliders slidably mounted inside the slide groove, each slider having an internal threaded hole inside, and the lead screw having positive and negative threads at both ends that are threadedly connected to the two internal threaded holes.

[0011] Preferably, a driven bevel gear is fixedly sleeved on the outside of the lead screw, and a driving bevel gear is engaged with one side of the driven bevel gear. A drive motor is installed inside the fixed seat, and the output end of the drive motor is fixedly connected to the driving bevel gear.

[0012] Preferably, the detachable cutting assembly includes two connectors, which are respectively fixedly installed at the front ends of two sliders. Each connector has a connector end inserted inside, and a cutting blade is fixedly installed at the front end of the connector end. The outer wall of the connector has a screw hole that communicates with the interior of the connector, and a screw is threaded into the screw hole.

[0013] This invention provides an adjustable reciprocating disc resection device for spinal endoscopy, which has the following advantages compared with the prior art:

[0014] 1. This design discloses an adjustable reciprocating disc resection device for spinal endoscopy. A rotating handle drives a worm gear to rotate, which in turn drives a rotating shaft to adjust the angle of the adjustment components, connectors, fixing base, reciprocating drive assembly, and detachable cutting assembly. This allows for adjustment of the angle of the detachable cutting assembly at the cutting site, thus adjusting the overall posture of the device and improving the ease of use during surgery. At the same time, the worm gear and worm wheel transmission method allows for locking the blade angle during adjustment, further enhancing the convenience of adjustment.

[0015] 2. This design presents an adjustable reciprocating disc resection device for spinal endoscopy. By rotating the threaded sleeve, the internal thread of the threaded sleeve engages with the external thread of the guide rod, causing the guide rod to move along the guide groove. This allows the guide rod to extend and retract, adjusting the connecting parts and the detachable cutting components. This enables the surgeon to easily adjust the blade depth in real time, ensuring that the surgical instrument operates in the optimal position, thereby improving the success rate and operability of the surgery.

[0016] 3. This design includes an adjustable reciprocating disc resection device for spinal endoscopy. The lighting module can illuminate the cutting area to improve its visibility, and the camera captures video of the cutting area and transmits it to the display screen, making it easier for doctors to observe the operation area and improving the visibility of the cutting area.

[0017] 4. This design is an adjustable reciprocating disc resection device for spinal endoscopy. In use, the insertion seat and the insertion end are connected to facilitate the disassembly and assembly of the cutting blade. It is convenient to change different types of blades (such as straight blades, curved blades, and blades with side blades) as needed during the operation. After the insertion end is inserted into the insertion seat, rotating the screw can drive it to move along the internal thread of the screw hole, thereby making the end of the screw abut against the surface of the insertion end and fixing the insertion end inside the insertion seat. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an adjustable reciprocating disc resection device for spinal endoscopy.

[0019] Figure 2 This is a schematic diagram of the overall side view of an adjustable reciprocating disc resection device for spinal endoscopy.

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point a;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point b;

[0022] Figure 5 for Figure 2 A magnified structural diagram at point c.

[0023] In the diagram: 1. Handle; 2. Angle adjustment assembly; 21. Mounting base; 22. Adjusting component; 23. Rotating shaft; 24. Worm gear; 25. Worm; 26. Mounting bracket; 27. Rotary handle; 28. Insertion slot; 29. ​​Threaded groove; 30. Threaded rod; 3. Support rod; 4. Depth adjustment assembly; 41. Connector; 42. Guide rod; 43. Guide groove; 44. External thread; 45. Threaded sleeve; 5. Vision auxiliary assembly; 51. Lighting module; 52. Camera; 6. Fixing base; 7. Reciprocating drive assembly; 71. Slide groove; 72. Slider; 73. Internal threaded hole; 74. Lead screw; 75. Driven bevel gear; 76. Active bevel gear; 77. Drive motor; 8. Detachable cutting assembly; 81. Insertion base; 82. Insertion end; 83. Cutting blade; 84. Screw hole; 85. Screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides an adjustable reciprocating disc resection device for spinal endoscopy, including a handle 1 and a support rod 3. An angle adjustment component 2 is installed at the connection between the handle 1 and the support rod 3. A depth adjustment component 4 is installed at the front end of the support rod 3. A fixing seat 6 is installed at the front end of the depth adjustment component 4. A visual aid component 5 is installed outside the depth adjustment component 4. A reciprocating drive component 7 is provided at the front end of the fixing seat 6. A detachable cutting component 8 is installed on the reciprocating drive component 7.

[0026] like Figure 2 and Figure 5As shown, in this embodiment, the angle adjustment component 2 includes a mounting base 21. A rotating shaft 23 is rotatably mounted inside the mounting base 21. An adjusting component 22, which is fixedly connected to the rotating shaft 23, is provided inside the mounting base 21. One end of the rotating shaft 23 is fixedly sleeved with a worm gear 24. A worm 25 is meshed with one side of the worm gear 24. A mounting bracket 26 is mounted on the outer wall of the mounting base 21 outside the worm 25. The upper end of the worm 25 extends rotatably to the outside of the mounting bracket 26 and is fixedly connected to a handle 27. A insertion groove 28 is provided at the front end of the adjusting component 22. The end of the support rod 3 is rotatably connected inside the insertion groove 28. A threaded groove 2 is provided on the outer wall of the adjusting component 22. 9. The inside of the threaded groove 29 is connected to the inside of the adjusting component 22. The threaded groove 29 is threadedly connected to the threaded rod 30. In use, the worm 25 can be driven by the handle 27 to drive the worm wheel 24 to rotate, so that the worm wheel 24 drives the rotating shaft 23 to rotate and adjust the adjusting component 22, the connecting component 41, the fixed seat 6, the reciprocating drive component 7 and the detachable cutting component 8 to adjust the angle. This allows the angle of the detachable cutting component 8 to be adjusted for the cutting part, adjusting the overall posture of the equipment and improving the convenience of surgical use. At the same time, the transmission is carried out by the worm wheel 24 and the worm 25, which can lock the angle of the blade while adjusting, improving the convenience of adjustment.

[0027] During use, the end of the support rod 3 is rotatably connected to the insertion slot 28, allowing the blade to rotate around the support rod 3 within the insertion slot 28. This adjusts the cutting angle of the blade, increasing the cutting range of the device. Doctors can easily adjust the instrument in real time, ensuring it operates at the optimal position and angle, thus improving the success rate and operability of the surgery. This increased flexibility and adaptability will help expand the indications for spinal endoscopic surgery, providing more patients with intervertebral disc diseases with effective minimally invasive treatment options.

[0028] like Figure 2 and Figure 4As shown, in this embodiment, the depth adjustment component 4 includes two guide grooves 43 formed at the front end of the support rod 3. Guide rods 42 are slidably installed inside the two guide grooves 43. Connectors 41 are fixedly connected to the front ends of the two guide rods 42. The front ends of the connectors 41 are fixedly connected to the fixed base 6. One of the guide rods 42 has an external thread 44. A threaded sleeve 45 connected to the external thread 44 is sleeved on the outside of the guide rod 42. The threaded sleeve 45 is rotatably installed at the front end of the support rod 3. In use, by rotating the threaded sleeve 45, the internal thread of the threaded sleeve 45 can be driven to engage with the external thread 44 of the guide rod 42, driving the guide rod 42 to move along the guide groove 43. This allows the guide rod 42 to drive the connector 41 and the detachable cutting component 8 to extend and retract, allowing the doctor to adjust the blade depth of the instrument in real time through simple operation, ensuring that the surgical instrument can work in the optimal position, thereby improving the success rate and operability of the surgery.

[0029] like Figure 2 As shown, in this embodiment, the visual aid component 5 includes a light module 51 and a camera 52 installed on the outer wall of the connector 41. The light module 51 can illuminate the cutting area to improve its visibility, and the camera 52 can capture video of the cutting area and transmit it to the display screen to facilitate the doctor's observation of the operation area and improve the visibility of the cutting area.

[0030] like Figure 2 and Figure 3 As shown, in this embodiment, the reciprocating drive assembly 7 includes a slide groove 71 disposed at the front end of the fixed base 6. A lead screw 74 is rotatably mounted inside the slide groove 71. Two sliders 72 are slidably mounted inside the slide groove 71. Each slider 72 has an internal threaded hole 73. The two ends of the lead screw 74 are provided with positive and negative threads that are threadedly connected to the two internal threaded holes 73. A driven bevel gear 75 is fixedly sleeved on the outside of the lead screw 74. A driving bevel gear 76 is meshed on one side of the driven bevel gear 75. A drive motor 77 is installed inside the fixed base 6. The output end of the drive motor 77 is fixedly connected to the active bevel gear 76. In use, the drive motor 77 can drive the active bevel gear 76 and the driven bevel gear 75 to transmit power, thereby driving the lead screw 74 to rotate. The lead screw 74 cooperates with the internal threaded hole 73, thereby driving the slider 72 to move along the path in the slide groove 71. This causes the slider 72 to drive the detachable cutting assembly 8 to move and perform cutting work. The forward and reverse rotation of the drive motor 77 realizes the clockwise and counterclockwise rotation of the lead screw 74, thereby realizing the reciprocating cutting work of the detachable cutting assembly 8.

[0031] like Figure 2 and Figure 3As shown, in this embodiment, the detachable cutting assembly 8 includes two connectors 81, which are respectively fixedly installed at the front ends of two sliders 72. A connector end 82 is inserted into the connector 81, and a cutting blade 83 is fixedly installed at the front end of the connector end 82. A screw hole 84 is installed on the outer wall of the connector 81, which communicates with the interior of the connector 81. A screw rod 85 is threaded into the screw hole 84. In use, the connector 81 and the connector end 82 are connected to each other, which facilitates the disassembly and assembly of the cutting blade 83. It is convenient to change different types of blades (such as straight blades, curved blades, blades with side blades, etc.) as needed during the operation. After the connector end 82 is inserted into the connector 81, rotating the screw rod 85 can drive it to move along the internal thread of the screw hole 84, thereby causing the end of the screw rod 85 to abut against the surface of the connector end 82, fixing the connector end 82 inside the connector 81.

[0032] The working principle of this utility model is as follows: In use, the worm gear 25 can be driven by the handle 27 to rotate the worm wheel 24, so that the worm wheel 24 drives the rotating shaft 23 to rotate and adjust the angle of the adjusting component 22, the connecting component 41, the fixed base 6, the reciprocating drive component 7 and the detachable cutting component 8. Thus, the angle of the detachable cutting component 8 can be adjusted for the cutting part, and the overall posture of the device can be adjusted to improve the convenience of surgical use. At the same time, the worm wheel 24 and the worm gear 25 are used for transmission, and the angle of the blade can be locked while adjusting, which improves the convenience of adjustment.

[0033] During use, the end of the support rod 3 is rotatably connected to the insertion slot 28, allowing the blade to rotate around the support rod 3 within the insertion slot 28. This adjusts the cutting angle of the blade, increasing the cutting range of the device. Doctors can easily adjust the instrument in real time, ensuring it operates at the optimal position and angle, thus improving the success rate and operability of the surgery. This increased flexibility and adaptability will help expand the indications for spinal endoscopic surgery, providing more patients with intervertebral disc diseases with effective minimally invasive treatment options.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. An adjustable type reciprocating discectomy device under endoscope for spinal column, characterized in that, The device includes a handle (1) and a support rod (3). An angle adjustment component (2) is installed at the connection between the handle (1) and the support rod (3). A depth adjustment component (4) is installed at the front end of the support rod (3). A fixed seat (6) is installed at the front end of the depth adjustment component (4). A visual aid component (5) is installed on the outside of the depth adjustment component (4). A reciprocating drive component (7) is provided at the front end of the fixed seat (6). A detachable cutting component (8) is installed on the reciprocating drive component (7).

2. The adjustable type reciprocating discectomy device under endoscope for intervertebral disc according to claim 1, wherein, The angle adjustment assembly (2) includes a mounting base (21), a rotating shaft (23) is rotatably mounted inside the mounting base (21), an adjusting component (22) is fixedly connected to the rotating shaft (23) inside the mounting base (21), a worm gear (24) is fixedly sleeved at one end of the rotating shaft (23), a worm (25) is meshed on one side of the worm gear (24), a mounting bracket (26) is mounted on the outer wall of the mounting base (21) outside the worm (25), and the upper end of the worm (25) extends rotatably to the outside of the mounting bracket (26) and is fixedly connected to a handle (27).

3. The adjustable type reciprocating discectomy device under endoscope for intervertebral disc according to claim 2, wherein, The front end of the adjusting member (22) is provided with a plug groove (28), and the end of the support rod (3) is rotatably connected to the inside of the plug groove (28). The outer wall of the adjusting member (22) is provided with a threaded groove (29), and the inside of the threaded groove (29) is connected to the inside of the adjusting member (22). A threaded rod (30) is threadedly connected inside the threaded groove (29).

4. The adjustable reciprocating disc resection device for spinal endoscopy according to claim 3, characterized in that, The depth adjustment component (4) includes two guide grooves (43) opened at the front end of the support rod (3). Guide rods (42) are slidably installed inside the two guide grooves (43). Connectors (41) are fixedly connected to the front ends of the two guide rods (42). The front end of the connectors (41) is fixedly connected to the fixed seat (6). One of the guide rods (42) is provided with an external thread (44). A threaded sleeve (45) connected to the external thread (44) is sleeved on the outside of the guide rod (42). The threaded sleeve (45) is rotatably installed at the front end of the support rod (3).

5. The adjustable type reciprocating discectomy device for use in endoscopic spinal surgery according to claim 4, wherein The visual aid component (5) includes a light module (51) and a camera (52) mounted on the outer wall of the connector (41).

6. The adjustable type reciprocating discectomy device for use in endoscopic spinal surgery according to claim 1, wherein The reciprocating drive assembly (7) includes a slide groove (71) disposed at the front end of the fixed base (6). A lead screw (74) is rotatably mounted inside the slide groove (71). Two sliders (72) are slidably mounted inside the slide groove (71). Each slider (72) is provided with an internal threaded hole (73). Both ends of the lead screw (74) are provided with positive and negative threads that are threadedly connected to the two internal threaded holes (73).

7. The adjustable type reciprocating discectomy device under endoscope for intervertebral disc according to claim 6, wherein, The lead screw (74) is externally fitted with a driven bevel gear (75), and a driving bevel gear (76) is engaged on one side of the driven bevel gear (75). A drive motor (77) is installed inside the fixed seat (6), and the output end of the drive motor (77) is fixedly connected to the driving bevel gear (76).

8. The adjustable type reciprocating discectomy device for use with endoscopic spinal surgery according to claim 7, wherein The detachable cutting assembly (8) includes two plug-in seats (81), which are respectively fixedly installed at the front ends of two sliders (72). A plug-in end (82) is inserted into the plug-in seat (81), and a cutting blade (83) is fixedly installed at the front end of the plug-in end (82). A screw hole (84) is installed on the outer wall of the plug-in seat (81), and the screw hole (84) communicates with the inside of the plug-in seat (81). A screw rod (85) is threadedly connected inside the screw hole (84).

Images