A universal grinding head for minimally invasive surgery

Abstract

A universal grinding head for minimally invasive surgery provided by the present invention includes a rotating member and an angle adjusting member; the rotating member includes a rotating hand; an inner rod is connected to the rotating hand; a notch is provided at the end of the inner rod; a sphere rotatably connected to the inner rod is arranged in the notch; a limiting groove communicated with the notch is provided on the inner rod; a limiting post arranged in the limiting groove is connected to the sphere; a connecting rod is connected to the sphere; a second sphere is connected to the connecting rod; a grinding head assembly is connected to the second sphere; a fixed rotating hand rotatably connected to the rotating hand is rotatably sleeved on the outer end of the inner rod; the angle adjusting member includes an inner tube sleeved on the outer end of the inner rod; the inner tube is connected to the fixed rotating hand; a second sleeve is sleeved on the outer end of the inner tube; a rotating wheel is rotatably connected to the second sleeve; a sleeve ring is threadedly connected to the rotating wheel; a sleeve post is connected to the sleeve ring; a limiting ring plate is connected inside the rotating wheel; an outer tube is penetrated through the sleeve ring; the outer tube is connected to the second sleeve through a limiting member; it is convenient to adjust the angle of the grinding head, realize the swing of the grinding head, and expand the working range of the grinding head.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding, and particularly relates to a universal grinding head for minimally invasive surgery. Background Art

[0002] In minimally invasive endoscopic surgery, the surgical channels are mostly single or multiple small round hole incisions, and surgical instruments enter the human body cavity through these surgical channels. In minimally invasive endoscopic surgery, it is often necessary to perform grinding inside the human body cavity. However, since the connecting rod of the existing device has a fixed shape, the insertion path is restricted by the connecting rod and cannot adapt to changing the insertion direction. Therefore, there are potential hazards such as easily scratching blood vessels or healthy tissues during the process of inserting the device into the specified position inside the human body cavity, and even being unable to reach the surgical site.

[0003] A universal grinding head for minimally invasive surgery provided by the present utility model has a simple structure, is convenient to use, is convenient for adjusting the angle of the grinding head, realizes the swing of the grinding head in a narrow space, makes the working blind spot become a touchable point, and substantially expands the working range of the grinding head. Summary of the Invention

[0004] A universal grinding head for minimally invasive surgery provided by the present invention has a simple structure, is convenient to use, is convenient for adjusting the angle of the grinding head, realizes the swing of the grinding head in a narrow space, makes the working blind spot become a touchable point, and substantially expands the working range of the grinding head.

[0005] A universal grinding head for minimally invasive surgery provided by the present invention includes a rotating member and an angle adjusting member; the rotating member includes a rotating hand; an inner rod is fixedly connected to the rotating hand; a notch is provided at the end of the inner rod; a sphere rotatably connected to the inner rod is arranged in the notch; a limiting groove communicating with the notch is provided on the inner rod; a limiting post arranged in the limiting groove is fixedly connected to the sphere; a connecting rod is fixedly connected to the sphere; a second sphere is connected to the connecting rod; a grinding head assembly is connected to the second sphere; a fixed rotating hand rotatably connected to the rotating hand is rotatably sleeved on the outer end of the inner rod; the angle adjusting assembly includes an inner tube sleeved on the outer end of the inner rod; the inner tube is fixedly connected to the fixed rotating hand; a second sleeve is fixedly sleeved on the outer end of the inner tube; a rotating wheel is rotatably connected to the second sleeve; a sleeve ring is threadedly connected to the rotating wheel; a sleeve post is fixedly connected to the sleeve ring; a limiting ring plate is fixedly connected inside the rotating wheel; an outer tube is fixedly penetrated through the sleeve ring; the outer tube is connected to the second sleeve through a limiting member; by fixing the rotating hand and the fixed rotating hand and rotating the rotating wheel, the sleeve ring is driven to move, the outer tube is driven to move, and the grinding head assembly is pushed to adjust the angle.

[0006] The limiting member includes a U-shaped groove provided on the second sleeve and a limiting strip plate fixedly connected to the outer tube; the limiting strip plate is arranged in the U-shaped groove, and with the assistance of the U-shaped groove and the limiting strip plate, it is ensured that the sleeve ring will not rotate.

[0007] The grinding head assembly includes a third sleeve; a second limiting groove is provided on the third sleeve; a second limiting post fixedly connected to a second sphere is provided in the second limiting groove; the second sphere is rotatably connected to the third sleeve; the outer end of the third sleeve is rotatably connected to a fourth sleeve.

[0008] The fourth sleeve is provided with a rotating protrusion; the inner tube is provided with a rotating groove; the rotating protrusion is rotatably arranged in the rotating groove.

[0009] A connecting plate is fixedly connected to the outer tube; the connecting plate is hinged to the fourth sleeve.

[0010] A grinding head is fixedly connected to the third sleeve; fix the fixed rotating hand and the rotating wheel, rotate the rotating hand, drive the inner rod to rotate, drive the sphere to rotate through the limiting post, drive the connecting rod to rotate, drive the second sphere to rotate, drive the third sleeve to rotate through the second limiting post, and drive the grinding head to rotate for grinding.

[0011] The beneficial effects of the present invention: A universal grinding head for minimally invasive surgery provided by the present utility model has a simple structure, is convenient to use, is convenient to adjust the angle of the grinding head, realizes the swing of the grinding head in a narrow space, makes the working blind spot become a contactable point, and substantially expands the working range of the grinding head. Description of the Drawings

[0012] Figure 1 It is a structural diagram of a universal grinding head for minimally invasive surgery of the present invention.

[0013] Figure 2 It is an enlarged view of part A of a universal grinding head for minimally invasive surgery of the present invention.

[0014] Figure 3 It is an exploded view of the rotating wheel part of a universal grinding head for minimally invasive surgery of the present invention.

[0015] Figure 4 It is a structural diagram of the grinding head part of a universal grinding head for minimally invasive surgery of the present invention.

[0016] Figure 5 It is another structural diagram of the grinding head part of a universal grinding head for minimally invasive surgery of the present invention.

[0017] (1. Rotating hand; 2. Inner rod; 3. Notch; 4. Sphere; 5. Limiting groove; 6. Limiting post; 7. Connecting rod; 8. Second sphere; 9. Fixed rotating hand; 10. Inner tube; 11. Rotating wheel; 12. Sleeve ring; 13. Sleeve post; 14. Limiting ring plate; 15. Outer tube; 16. Second sleeve; 17. U-shaped groove; 18. Limiting strip plate; 19. Third sleeve; 20. Second limiting groove; 21. Second limiting post; 22. Rotating protrusion; 23. Rotating groove; 24. Connecting plate; 25. Fourth sleeve; 26. Grinding head) Detailed implementation mode

[0018] The following further describes the present utility model in conjunction with the accompanying drawings.

[0019] According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, a universal grinding head for minimally invasive surgery includes a rotating member and an angle adjusting member; the rotating member includes a rotating handle 1; a inner rod 2 is fixedly connected to the rotating handle 1; a notch 3 is provided at the end of the inner rod 2; a sphere 4 rotatably connected to the inner rod 2 is provided in the notch 3; a limiting groove 5 communicating with the notch 3 is provided on the inner rod 2; a limiting post 6 provided in the limiting groove 5 is fixedly connected to the sphere 4; a connecting rod 7 is fixedly connected to the sphere 4; a second sphere 8 is connected to the connecting rod 7; a grinding head assembly is connected to the second sphere 8; a fixed rotating handle 9 rotatably connected to the rotating handle is rotatably sleeved on the outer end of the inner rod 2; the angle adjusting assembly includes an inner tube 10 sleeved on the outer end of the inner rod 2; the inner tube 10 is fixedly connected to the fixed rotating handle 9; a second sleeve 16 is fixedly sleeved on the outer end of the inner tube; a rotating wheel 11 is rotatably connected to the second sleeve 16; a sleeve ring 12 is threadedly connected to the rotating wheel 11; a sleeve post 13 is fixedly connected to the sleeve ring 12; a limiting ring plate 14 is fixedly connected inside the rotating wheel 11; an outer tube 15 is fixedly penetrated through the sleeve ring 12; the outer tube 15 is connected to the second sleeve 16 through a limiting member.

[0020] The limiting member of the present invention includes a U-shaped groove 17 provided on the second sleeve 16 and a limiting strip plate 18 fixedly connected to the outer tube 15; the limiting strip plate 18 is provided in the U-shaped groove 17.

[0021] The grinding head assembly of the present invention includes a third sleeve 19; a second limiting groove 20 is provided on the third sleeve 19; a second limiting post 21 fixedly connected to the second sphere 8 is provided in the second limiting groove 20; the second sphere 8 is rotatably connected to the third sleeve 19; the outer end of the third sleeve 19 is rotatably connected to a fourth sleeve 25.

[0022] A rotating protrusion 22 is provided on the fourth sleeve 25 of the present invention; a rotating groove 23 is provided on the inner tube 10; the rotating protrusion 22 is rotatably provided in the rotating groove 23.

[0023] A connecting plate 24 is fixedly connected to the outer tube 15 of the present invention; the connecting plate 24 is hinged to the fourth sleeve 25.

[0024] A grinding head 26 is fixedly connected to the third sleeve 19 of the present invention.

[0025] Principle of the present invention: Fix the rotating hand 1 and the fixed rotating hand 9, rotate the rotating wheel 11 to drive the movement of the collar 12. With the assistance of the U-shaped groove 17 and the limiting strip 18, the collar 12 will not rotate. The movement of the collar 12 drives the movement of the outer tube 15, which in turn pushes the connecting plate 24 to move. The fourth sleeve 25 rotates with the assistance of the rotating protrusion 22 and the rotating groove 23. Since the second sphere 8 and the third sleeve 19 are rotationally connected through the second sphere 8, the third sleeve 19 will rotate with the rotation of the fourth sleeve 25, driving the grinding head 26 to rotate for angle adjustment. Fix the fixed rotating hand 9 and the rotating wheel 11, rotate the rotating hand 1 to drive the inner rod 2 to rotate, drive the sphere 4 to rotate through the limiting post 6, drive the connecting rod 7 to rotate, drive the second sphere 8 to rotate, and drive the third sleeve 19 to rotate through the second limiting post 21, driving the grinding head 26 to rotate for grinding.

[0026] Although the present invention has been disclosed above in its preferred embodiments, it is not intended to limit the present utility model. Any person familiar with this technology can make various modifications and decorations without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present invention should be determined by the scope defined in the claims.

Claims

1. A universal grinding head for minimally invasive surgery, characterized in that: It includes a rotating member and an angle adjusting member; the rotating member includes a rotating handle (1); a inner rod (2) is fixedly connected to the rotating handle (1); a notch (3) is provided at the end of the inner rod (2); a sphere (4) rotatably connected to the inner rod (2) is provided in the notch (3); a limiting groove (5) communicating with the notch (3) is provided on the inner rod (2); a limiting post (6) provided in the limiting groove (5) is fixedly connected to the sphere (4); a connecting rod (7) is fixedly connected to the sphere (4); a second sphere (8) is connected to the connecting rod (7); a grinding head assembly is connected to the second sphere (8); a fixed rotating handle (9) rotatably connected to the rotating handle is rotatably sleeved on the outer end of the inner rod (2); the angle adjusting member includes an inner tube (10) sleeved on the outer end of the inner rod (2); the inner tube (10) is fixedly connected to the fixed rotating handle (9); a second sleeve (16) is fixedly sleeved on the outer end of the inner tube; a rotating wheel (11) is rotatably connected to the second sleeve (16); a collar (12) is threadedly connected to the rotating wheel (11); a sleeve post (13) is fixedly connected to the collar (12); a limiting ring plate (14) is fixedly connected inside the rotating wheel (11); an outer tube (15) is fixedly penetrated through the collar (12); the outer tube (15) is connected to the second sleeve (16) through a limiting member; The limiting member includes a U-shaped groove (17) provided on the second sleeve (16) and a limiting strip plate (18) fixedly connected to the outer tube (15); the limiting strip plate (18) is provided in the U-shaped groove (l7).

2. The universal grinding head for minimally invasive surgery according to claim 1, characterized in that: The grinding head assembly includes a third sleeve (19); a second limiting groove (20) is provided on the third sleeve (19); a second limiting post (21) fixedly connected to the second sphere (8) is provided in the second limiting groove (20); the second sphere (8) is rotatably connected to the third sleeve (19); the outer end of the third sleeve (19) is rotatably connected to a fourth sleeve (25).

3. The universal grinding head for minimally invasive surgery according to claim 2, characterized in that: A rotating protrusion (22) is provided on the fourth sleeve (25); a rotating groove (23) is provided on the inner tube (10); the rotating protrusion (22) is rotatably provided in the rotating groove (23).

4. The universal grinding head for minimally invasive surgery according to claim 1, wherein: A connecting plate (24) is fixedly connected to the outer tube (15); the connecting plate (24) is hinged to the fourth sleeve (25).

5. The universal grinding head for minimally invasive surgery according to claim 3, characterized in that: A grinding head (26) is fixedly connected to the third sleeve (19).

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