Lateral skull base tumor clamping ear forceps
The lateral skull base tumor-grabbing ear clamp, with its multi-angle clamp head and 360° adjustable jaw direction, solves the problem of insufficient angle and direction adjustment in existing technologies, enabling precise tumor retrieval, improving surgical accuracy and efficiency, reducing risks, and promoting academic research and socio-economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-03
AI Technical Summary
Existing tumor removal forceps on the market cannot provide sufficient angle and direction adjustment, resulting in prolonged lateral skull base surgery time, increased risks, and uncertainty in recovery time and quality.
A lateral skull base tumor-grabbing ear clamp was designed. Through multi-angle clamp heads and 360° adjustable clamp jaw direction, it can accurately grasp tumors and reduce damage to surrounding nerves and blood vessels.
Improving surgical precision, reducing the possibility of cross-infection recurrence and complications, enhancing treatment effectiveness and surgical efficiency, reducing medical costs, and promoting academic research and socio-economic benefits.
Smart Images
Figure CN224070682U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology and relates to a tumor-grabbing ear clamp, especially a lateral skull base tumor-grabbing ear clamp. Background Technology
[0002] Depending on the patient's condition, otolaryngology and neurosurgery specialists will perform lateral skull base surgery. Lateral skull base surgery, especially in the inner ear region, demands extremely high precision and professional fit from surgical instruments due to its deep and complex location, surrounded by important nerves and blood vessels. Current tumor forceps on the market do not offer sufficient angle and directional adjustments to adapt to different surgical scenarios. This limitation leads to prolonged surgery time, increased surgical risks, and uncertainty in postoperative recovery time and quality.
[0003] Given the aforementioned technical deficiencies of existing technologies, there is an urgent need to develop a new type of ear clamp for lateral skull base tumor removal. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an ear clamp for lateral skull base tumor removal. This clamp can achieve rapid replacement of the clamp head at multiple angles and arbitrary adjustment of the clamp jaw opening direction, thereby enabling precise and complete removal of the tumor and minimizing damage to surrounding nerves and blood vessels.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A lateral skull base tumor-grabbing ear clamp includes a front handle and a rear handle rotatably connected to each other. The rear handle is connected to the rear end of a clamp tube, and the front handle is connected to the rear end of a push rod located within the clamp tube. The clamp tube's front end is connected to the rear end of the clamp head via a locking device, allowing for 360° adjustment of the clamp head's jaw opening direction. The clamp head includes a solid clamp body, a movable clamp body, a fixed clamp plate, and a movable clamp plate. The fixed clamp plate is fixedly connected to the front end of the solid clamp body. The movable clamp plate is rotatably connected to the front end of the solid clamp body and the front end of the movable clamp body via two rotating shafts, respectively. The front end of the push rod extends from the front end of the clamp tube and is connected to the rear end of the movable clamp body.
[0007] Preferably, the locking device has an internal thread, the front end of the clamp tube is provided with a first external thread that mates with the internal thread, and the rear end of the fixing clamp is provided with a second external thread that mates with the internal thread.
[0008] Preferably, the front end of the push rod is provided with an external thread, and the rear end of the movable clamp is provided with an internal thread that mates with the external thread.
[0009] Preferably, the movable clamp has an upper hole.
[0010] Preferably, the upper hole has a length of 6.3 mm, a front width of R0.3 mm, and a rear width of 1.5 mm.
[0011] Preferably, the fixed clamp and the movable clamp have a length of 10mm, a thickness of 0.65mm, a front-end closing height of 1.3mm, and a rear-end closing height of 3.5mm.
[0012] Preferably, the front end width of the fixed clamp and the movable clamp is 1.8 mm and the rear end width is 3.2 mm.
[0013] Preferably, the height of the inner space formed by the fixed clamp and the movable clamp is: 0.45mm at the front end, 1.2mm in the middle, and 0.45mm at the rear end, thereby forming an arc-shaped encircling structure.
[0014] Preferably, the inner teeth of the fixed clamp and the movable clamp have a tooth depth of 0.3 mm and a tooth width of 0.6 mm, and the inner teeth have rounded blunt tooth tips with an R0.15 mm radius.
[0015] Preferably, the pliers head is a 0°, 15°, 30°, 45°, 60° or 80° pliers head.
[0016] Compared with the prior art, the lateral skull base tumor-grabbing ear clamp of this utility model has one or more of the following beneficial technical effects:
[0017] 1. For patients: Multi-angle and multi-directional forceps can be flexibly selected according to the surgical situation, which can significantly improve surgical precision and completely remove the tumor, effectively reducing the possibility of recurrence and complications caused by cross-infection, thereby improving the overall treatment effect and quality.
[0018] 2. Academic Impact: It can promote the advancement of high-anastomosis surgical instruments, drive the development of related surgical techniques, and provide new possibilities for medical research, stimulating more academic research and discussion on surgical precision and efficiency.
[0019] 3. Benefits to society: It can improve surgical efficiency and reduce surgical risks, alleviate the burden on the medical system and reduce medical costs on a broader level; moreover, it can improve treatment outcomes and accelerate patient recovery, and reduce patients' dependence on family and social resources, thereby generating positive socio-economic effects.
[0020] 4. In summary, this utility model not only optimizes the function of surgical forceps and fills the technical defects of existing surgical tools, but also brings significant positive impacts on patient treatment outcomes, academic research, and socio-economic development. Attached Figure Description
[0021] Figure 1 This is an axonometric view of the ear clamp for lateral skull base tumor removal according to this utility model.
[0022] Figure 2 This is a front view of the clamp head and locking device of the ear clamp for lateral skull base tumor removal according to this utility model.
[0023] Figure 3 This is a cross-sectional view of the clamp head and locking device of the ear clamp for lateral skull base tumor removal according to this utility model.
[0024] Figure 4 This is another front view of the clamp head and locking device of the ear clamp for lateral skull base tumor removal according to this utility model.
[0025] Figure 5 This is a top view of the clamp head and locking device of the ear clamp for lateral skull base tumor removal according to this utility model.
[0026] Figure 6 This is an isometric view of the forceps head and locking device of the lateral skull base tumor-grabbing ear forceps of this utility model, wherein the forceps are in the open state.
[0027] Figure 7 The pliers are shown at different angles. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. The content of the embodiments is not intended to limit the scope of protection of the present invention.
[0029] To address the problems of existing technologies, this invention provides a lateral skull base tumor-grabbing ear clamp that enables rapid replacement of the clamp head at multiple angles and arbitrary adjustment of the clamp jaw opening direction, thereby enabling precise and complete tumor removal while minimizing damage to surrounding nerves and blood vessels.
[0030] Figure 1 An axonometric view of the ear clamp for lateral skull base tumor removal of this invention is shown. Figure 1 As shown, the lateral skull base tumor-grabbing ear clamp of this invention includes a front handle 1 and a rear handle 2 that are rotatably connected to each other. By holding the front handle 1 and the rear handle 2, the front handle 1 can be rotated relative to the rear handle 2.
[0031] like Figure 2-6As shown, the rear handle 2 is connected to the rear end of the forceps tube 3. The front handle 1 is connected to the rear end of the push rod 6 located inside the forceps tube 3. Furthermore, the front end of the forceps tube 3 is connected to the rear end of the forceps head 5 via a locking device 4, allowing for 360° adjustment of the jaw opening direction of the forceps head 5. Thus, after releasing the locking device 4, the forceps head 5 can be adjusted arbitrarily in 360°. Once the jaw opening direction of the forceps head 5 is determined, tightening the locking device 4 forward will fix the jaw opening direction of the forceps head 5. In this way, the surgeon can flexibly choose different gripping directions according to the surgical needs.
[0032] The clamp head 5 includes a solid clamp body 51, a movable clamp body 52, a fixed clamp plate 53, and a movable clamp plate 54. The fixed clamp plate 53 is fixedly connected to the front end of the solid clamp body 51. The movable clamp plate 54 is rotatably connected to the front end of the solid clamp body 51 and the front end of the movable clamp body 52 via two rotating shafts, respectively. The front end of the push rod 6 extends from the front end of the clamp tube 3 and is connected to the rear end of the movable clamp body 52. Thus, the front handle 1 can drive the movable clamp body 52 to move back and forth via the push rod 6, and the back and forth movement of the movable clamp body 52 can drive the movable clamp plate 54 to open and close at different angles, for example, Figure 6 The opening and closing angles shown are 80°, 45°, 60°, etc.
[0033] Preferably, the locking device 4 has an internal thread. The front end of the clamp tube 3 is provided with a first external thread that mates with the internal thread, and the rear end of the fixed clamp piece (53) is provided with a second external thread 55 that mates with the internal thread. More preferably, the front end of the push rod 6 is provided with an external thread, and the rear end of the movable clamp body 52 is provided with an internal thread that mates with the external thread. This facilitates the replacement of the clamp head 5, for example, replacing it with... Figure 7 Choose any one of the following clamp heads: 0°, 15°, 30°, 45°, 60°, or 80°. This allows for flexible selection of clamp heads with multiple angles and directions depending on the surgical situation, significantly improving surgical precision and ensuring complete tumor removal. This effectively reduces the possibility of recurrence and complications due to cross-infection, thereby improving the overall treatment effect and quality.
[0034] Furthermore, preferably, the movable clamping jaws 54 are provided with an upper hole 56. More preferably, the upper hole 56 has a length of 6.3 mm, a front width of R0.3 mm, and a rear width of 1.5 mm. This allows some loose tissue to be squeezed out from the upper hole 56 during clamping, increasing the clamping stability.
[0035] Preferably, the fixed clamp 53 and the movable clamp 54 have a length of 10 mm, a thickness of 0.65 mm, a front-end closing height of 1.3 mm, and a rear-end closing height of 3.5 mm. This makes it easier for the fixed clamp 53 and the movable clamp 54 to enter narrow areas.
[0036] More preferably, the front end width of the fixed clamp 53 and the movable clamp 54 is 1.8 mm, and the rear end width is 3.2 mm. The 1.8 mm front end width makes it easier to enter narrow areas, while the 3.2 mm rear end width ensures a more secure clamping. Therefore, it is possible to achieve a clamping range of approximately 50% for common tumors, ensuring a more secure clamping.
[0037] Preferably, the inner space formed by the fixed clamping plate 53 and the movable clamping plate 4 has the following heights: 0.45mm at the front end, 1.2mm in the middle, and 0.45mm at the rear end, thus forming an arc-shaped, encircling structure. This allows for better and more secure clamping.
[0038] Finally, preferably, the inner teeth of the fixed clamp 53 and the movable clamp 54 have a tooth depth of 0.3 mm and a tooth width of 0.6 mm, thereby allowing them to slightly embed into the tumor surface during clamping, ensuring a more secure grip. Furthermore, the inner teeth have rounded, blunt tips with an radius of 0.15 mm, thereby ensuring that the tumor surface is not punctured, preventing the tumor from being crushed, and avoiding cross-infection.
[0039] The above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A lateral skull base tumor clip taking ear forceps, comprising a front handle (1) and a rear handle (2) connected with each other in rotation, the rear handle (2) being connected with the rear end of a forceps tube (3), the front handle (1) being connected with the rear end of a push rod (6) located in the forceps tube (3), characterized in that, The front end of the clamp tube (3) is connected with the rear end of the clamp head (5) through the locking device (4) so as to adjust the opening direction of the clamp head (5) by 360°, the clamp head (5) comprises a solid clamp body (51), a movable clamp body (52), a fixed clamp sheet (53) and a movable clamp sheet (54), the fixed clamp sheet (53) is fixedly connected with the front end of the solid clamp body (51), the movable clamp sheet (54) is rotatably connected with the front end of the solid clamp body (51) and the front end of the movable clamp body (52) through two rotating shafts, and the front end of the push rod (6) extends from the front end of the clamp tube (3) and is connected with the rear end of the movable clamp body (52).
2. The clivus tumor taking ear forceps according to claim 1, characterized by, The locking device (4) has an internal thread, the front end of the clamp tube (3) is provided with a first external thread matched with the internal thread, and the rear end of the fixed clamp sheet (53) is provided with a second external thread (55) matched with the internal thread.
3. The clivus tumor taking ear forceps according to claim 2, characterized by, The front end of the push rod (6) is provided with an external thread, and the rear end of the movable clamp body (52) is provided with an internal thread matched with the external thread.
4. The clivus tumor taking ear forceps according to claim 3, characterized by, The movable clamp sheet (54) is provided with an upper hole (56).
5. The clivus tumor taking ear forceps according to claim 4, wherein, The length of the upper hole (56) is 6.3mm, the front width is R0.3mm, and the rear width is 1.5mm.
6. The clivus tumor taking ear forceps according to claim 5, wherein, The length of the fixed clamp sheet (53) and the movable clamp sheet (54) is 10mm, the thickness is 0.65mm, the closing height of the front end is 1.3mm, and the closing height of the rear end is 3.5mm.
7. The clivus tumor taking ear forceps according to claim 6, characterized by, The front width of the fixed clamp sheet (53) and the movable clamp sheet (54) is 1.8mm, and the rear width is 3.2mm.
8. The clivus tumor taking ear forceps according to claim 7, characterized by, The inner space height of the fixed clamp sheet (53) and the movable clamp sheet (54) is 0.45mm at the front end, 1.2mm in the middle, and 0.45mm at the rear end, so as to form an arc-shaped embracing structure.
9. The clivus tumor taking ear forceps according to claim 8, characterized by, The tooth depth of the inner tooth of the fixed clamp sheet (53) and the movable clamp sheet (54) is 0.3mm, the tooth width is 0.6mm, and the inner tooth has an R0.15mm round blunt tooth tip.
10. The clivus tumor taking ear forceps according to any one of claims 1 to 9, characterized in that, The clamp head (5) is a 0°, 15°, 30°, 45°, 60° or 80° clamp head.