CN115553875A - Universal forceps for minimally invasive surgery - Google Patents
Universal forceps for minimally invasive surgery Download PDFInfo
- Publication number
- CN115553875A CN115553875A CN202211139766.9A CN202211139766A CN115553875A CN 115553875 A CN115553875 A CN 115553875A CN 202211139766 A CN202211139766 A CN 202211139766A CN 115553875 A CN115553875 A CN 115553875A
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- Prior art keywords
- sleeve
- limiting
- block
- fixedly connected
- rotating wheel
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides universal pliers, which comprise a pushing assembly, a rotating wheel assembly and a shearing head assembly, wherein the pushing assembly is connected with the rotating wheel assembly; the pushing assembly comprises a handle fixing block; the handle fixing block is in threaded connection with a lantern ring; the handle fixing block is provided with a notch; a handle movable block which is rotationally connected with the handle fixed block through a rotating shaft is arranged at the notch; the handle fixing block is provided with a through hole; a placing groove is arranged on the handle movable block; a transmission shaft penetrating through the through hole is arranged in the placing groove; the rotating wheel assembly comprises a circular plate and a rotating wheel; the circular plate is fixedly connected with a sleeve which is sleeved on the surface of the transmission shaft; the sleeve is connected with the handle fixing block through the limiting piece; the rotating wheel is fixedly connected with a second sleeve; the second sleeve is rotationally connected with the sleeve; the circular plate is connected with the rotating wheel through a second limiting piece; the angle adjustment is conveniently carried out to the shearing head, the installation and the disassembly are convenient, and the upper shearing head and the lower shearing head are convenient to clamp.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a universal forceps for minimally invasive surgery.
Background
In the minimally invasive endoscopic surgery, the surgery channel is mostly a single or a plurality of small round hole incisions, and surgical instruments enter the body cavity through the surgery channel. In minimally invasive endoscopic surgery, it is often necessary to grasp, trim, clamp, and remove sutures, tissue, or instruments from the body cavity.
Publication (bulletin) No.: CN205286472U, application No.: CN201620045222.X, a universal pliers for minimally invasive surgery, including first handle, second handle, hollow head rod, jaw subassembly and pull rod, first handle and second handle are articulated, and the one end of head rod is fixed on the second handle, and jaw subassembly installs the other end at hollow head rod, and the pull rod suit is in the head rod, and one end of pull rod is connected with first handle, and the other end of pull rod is connected with jaw subassembly, the position has concatenated the spring between the both ends of head rod, and the pull rod passes through the hollow passageway of spring. Because the spring is connected in series with the fixed head rod connecting the handle and the forceps holder assembly, and the spring has the functions of extension and bending memory, the movement direction of the forceps holder assembly is changed by bending the spring in the process of inserting the forceps holder assembly into a human body cavity, so that the forceps holder assembly can avoid blood vessels, healthy tissues and the like, the surgical site can be quickly and conveniently reached, and the safety and the use flexibility of the forceps are improved.
The above patent is inconvenient to clamp and separately operate the adjustment of angle, easy to position inaccurately, and inconvenient to dismantle and install, therefore, we propose a universal forceps for minimally invasive surgery to solve the above problems.
Disclosure of Invention
The universal forceps for minimally invasive surgery provided by the invention is simple in structure, convenient to use, convenient for angle adjustment of the shearing head, convenient to mount and dismount, and convenient for clamping the upper shearing head and the lower shearing head.
The invention provides universal forceps for minimally invasive surgery, which comprise a pushing assembly, a rotating wheel assembly and a shearing head assembly, wherein the pushing assembly is fixed on the rotating wheel assembly; the pushing assembly comprises a handle fixing block; the handle fixing block is in threaded connection with a lantern ring; the handle fixing block is provided with a notch; a handle movable block which is rotationally connected with the handle fixed block through a rotating shaft is arranged at the notch; the handle fixing block is provided with a through hole; the handle movable block is provided with a placing groove; a transmission shaft penetrating through the through hole is arranged in the placing groove; the rotating wheel assembly comprises a circular plate and a rotating wheel; the circular plate is fixedly connected with a sleeve sleeved on the surface of the transmission shaft; the sleeve is connected with the handle fixing block through the limiting piece; the rotating wheel is fixedly connected with a second sleeve; the second sleeve is rotationally connected with the sleeve; the circular plate is connected with the rotating wheel through a second limiting piece; the shearing head assembly comprises an upper shearing head and a lower shearing head which is rotationally connected with the upper shearing head through a second rotating shaft; one end of the upper shearing head, which is close to the second rotating shaft, is of a bending structure; the bending structure is rotatably connected with a connecting plate through a third rotating shaft; the connecting plate is hinged with the transmission shaft; a third sleeve is sleeved on the second sleeve; two arc-shaped limiting grooves are formed in the third sleeve; an arc-shaped plate attached to the second sleeve is arranged in the third sleeve; the arc-shaped plate is fixedly connected with a limiting column arranged in the arc-shaped limiting groove; the two arc plates are respectively and fixedly connected with a connecting block; the lower shearing head is fixedly connected with a second connecting block; the connecting block is rotationally connected with the second connecting block; the connecting block is rotatably connected with a connecting plate; the connecting plate is rotationally connected with the other connecting block; the pushing assembly is convenient for opening and closing the upper shearing head and the lower shearing head; the rotating wheel assembly facilitates angle adjustment of the shearing head assembly.
The limiting piece comprises a threaded sleeve fixedly connected with the handle fixing block; the threaded sleeve is connected with a threaded rod in a threaded manner; the threaded rod is connected with a fixed rod penetrating through the threaded rod in a sliding manner; the upper end of the fixed rod is in threaded connection with a nut; the fixed rod is fixedly connected with a limiting column arranged at the lower end of the threaded rod; the limiting column is provided with a notch; a spring with the lower end arranged at the outer end of the notch is arranged in the notch.
The handle fixing block is fixedly connected with a placing pipe of which the lower end is blocked; the lower end of the spring is arranged in the placing pipe.
And the transmission shaft is provided with a limit chuck matched with the notch after penetrating through the notch.
The end of the transmission shaft arranged in the placing groove is of a spherical structure.
The sleeve is provided with a limiting groove; and the inner wall of the sleeve ring is fixedly connected with a limiting block matched with the limiting groove.
The rotating wheel is provided with a circular groove; the circular groove is communicated with a limiting sliding groove; a second spring fixedly connected with the rotating wheel is arranged in the circular groove; the second spring is provided with a sliding block in contact with the circular groove and the limiting sliding groove; the sliding block is fixedly connected with a second limiting column; a limiting opening is formed in the circular plate; one end of the second limiting column is arranged in the limiting opening.
The second sleeve is fixedly connected with a limiting fixing column; the limiting fixing column is arranged between the two arc-shaped plates.
The invention has the beneficial effects that: the universal forceps for minimally invasive surgery provided by the invention is simple in structure, convenient to use, convenient for angle adjustment of the shearing head, convenient to mount and dismount, and convenient for clamping the upper shearing head and the lower shearing head.
Drawings
FIG. 1 is a cross-sectional view of the universal forceps for minimally invasive surgery according to the present invention.
Fig. 2 is an exploded view of the rotating wheel of the universal forceps for minimally invasive surgery according to the present invention.
FIG. 3 is an exploded view of a position-limiting element of universal forceps for minimally invasive surgery according to the present invention.
FIG. 4 is a position diagram of the handle fixing block and the transmission shaft of the universal forceps for minimally invasive surgery of the present invention.
FIG. 5 is a structural diagram of a cutting head assembly of the universal forceps for minimally invasive surgery according to the invention.
FIG. 6 is another structural diagram of the shearing head assembly of the universal forceps for minimally invasive surgery of the invention.
Fig. 7 is a third structural view of the shearing head assembly of the universal forceps for minimally invasive surgery of the invention.
FIG. 8 is a sectional view of the placement tube of the universal forceps for minimally invasive surgery of the present invention.
FIG. 9 is a sectional view of a position limiting block of the universal forceps for minimally invasive surgery of the invention.
FIG. 10 is a top view of the handle fixing block and the transmission shaft of the universal forceps for minimally invasive surgery of the present invention.
FIG. 11 is an enlarged view of the universal forceps for minimally invasive surgery of the present invention at the A position.
FIG. 12 is a partially enlarged view of the universal forceps for minimally invasive surgery according to the present invention
( 1. A handle fixing block; 2. a collar; 3. a rotating shaft; 4. a handle movable block; 5. a placement groove; 6. a drive shaft; 7. a circular plate; 8. a rotating wheel; 9. a sleeve; 10. a second sleeve; 11. an upper shearing head; 12. a second rotating shaft; 13. a bending structure; 14. a third rotating shaft; 15. a connecting plate; 16. a third sleeve; 17. an arc-shaped limiting groove; 18. an arc-shaped plate; 19. connecting blocks; 20. a second connecting block; 21. connecting plates; 22. a threaded sleeve; 23. a threaded rod; 24. fixing the rod; 25. a nut; 26. a limiting post; 27. a notch; 28. a spring; 29. placing a tube; 30. a limiting chuck; 31. a limiting groove; 32. a limiting block; 33. a circular groove; 34. a limiting chute; 35. a second spring; 36. a slider; 37. a limiting column; 38. a limiting port; 39. a through hole; 40. a limiting port; 41. a lower shearing head; 42. a limiting post; 43. limiting fixing column )
Detailed Description
The invention is further described below with reference to the accompanying drawings.
According to the universal forceps for minimally invasive surgery shown in figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, the universal forceps comprise a pushing assembly, a rotating wheel assembly and a shearing head assembly; the pushing assembly comprises a handle fixing block 1; the handle fixing block 1 is in threaded connection with a lantern ring 2; the handle fixing block 1 is provided with a notch; a handle movable block 4 which is rotationally connected with the handle fixed block 1 through a rotating shaft 3 is arranged at the notch; the handle fixing block 1 is provided with a through hole 39; the handle moving block 4 is provided with a placing groove 5; a transmission shaft 6 penetrating through the through hole 39 is arranged in the placing groove 5; the rotating wheel assembly comprises a circular plate 7 and a rotating wheel 8; a sleeve 9 sleeved on the surface of the transmission shaft 6 is fixedly connected to the circular plate 7; the sleeve 9 is connected with the handle fixing block 1 through a limiting piece; the rotating wheel 8 is fixedly connected with a second sleeve 10; the second sleeve 10 is rotatably connected with the sleeve 9; the circular plate 7 is connected with the rotating wheel 8 through a second limiting piece; the shearing head assembly comprises an upper shearing head 11 and a lower shearing head 41 which is rotationally connected with the upper shearing head 11 through a second rotating shaft 12; one end of the upper shearing head 11 close to the second rotating shaft 12 is provided with a bending structure 13; the bending structure 13 is rotatably connected with a connecting plate 15 through a third rotating shaft 14; the connecting plate 15 is hinged with the transmission shaft 6; a third sleeve 16 is sleeved on the second sleeve 10; two arc-shaped limiting grooves 17 are formed in the third sleeve 16; an arc-shaped plate 18 attached to the second sleeve 10 is arranged in the third sleeve 16; the arc-shaped plate 18 is fixedly connected with a limiting column 42 arranged in the arc-shaped limiting groove 17; the two arc plates 18 are respectively and fixedly connected with a connecting block 19; the lower shearing head 41 is fixedly connected with a second connecting block 20; the connecting block 19 is rotatably connected with a second connecting block 20; the connecting block 19 is rotatably connected with a connecting plate 21; the connecting plate 21 is rotatably connected to the other connecting piece 19.
The limiting piece comprises a threaded sleeve 22 fixedly connected with the handle fixing block 1; a threaded rod 23 is connected to the threaded sleeve 22 in a threaded manner; a fixed rod 24 penetrating through the threaded rod 23 is connected on the threaded rod 23 in a sliding manner; the upper end of the fixing rod 24 is in threaded connection with a nut 25; a limiting column 26 arranged at the lower end of the threaded rod 23 is fixedly connected to the fixing rod 24; the limiting column 26 is provided with a notch 27; a spring 28 with the lower end arranged at the outer end of the notch 27 is arranged in the notch 27.
The handle fixing block 1 is fixedly connected with a placing pipe 29 with the lower end being blocked; the lower end of the spring 28 is disposed within a placement tube 29.
The transmission shaft 6 is provided with a limit chuck 30 which is matched with the notch 27 after penetrating through the notch 27.
The end of the transmission shaft 6 arranged in the placing groove is of a spherical structure.
The sleeve 9 is provided with a limit groove 31; the inner wall of the lantern ring 2 is fixedly connected with a limiting block 32 matched with the limiting groove 31.
The rotating wheel 8 is provided with a circular groove 33; the round groove 33 is connected with a limit sliding groove 34; a second spring 35 fixedly connected with the rotating wheel 8 is arranged in the circular groove 33; the second spring 35 is provided with a sliding block 36 arranged in the circular groove 33 and the limiting sliding groove 34 in a contact manner; a second limit column 37 is fixedly connected to the sliding block 36; a limiting opening 40 is formed in the circular plate 7; one end of the second limiting column 37 is arranged in the limiting opening 40.
The second sleeve 10 is fixedly connected with a limiting fixing column 43; the limiting fixing column 43 is arranged between the two arc-shaped plates 18.
The principle of the invention is as follows: when the device is used, the sliding block 36 is pushed, the limiting column 37 comes out of the limiting opening 40 to fix the third sleeve 16, the rotating wheel 8 is rotated to drive the second sleeve 10 to rotate, the limiting fixing column 43 is arranged between the two arc-shaped plates 18 to drive the arc-shaped plates 18 to rotate, the two arc-shaped plates 18 move in tandem with the assistance of the limiting column 42 and the arc-shaped limiting groove 17 to drive the second connecting block 20 to move to drive the upper shearing head 11 and the lower shearing head 41 to swing, angle adjustment is carried out, the handle fixing block 1 is held, the handle moving block 4 is pushed and stretched, the transmission shaft 6 is extruded, the transmission shaft 6 pushes the third rotating shaft 14, the third rotating shaft 14 pushes the bending structure 13, the bending structure 13 rotates by taking the second rotating shaft 12 as a center, and the upper shearing head 11 is attached to or opened from the lower shearing head 41. Pressing nut 25, driving dead lever 24 downstream, extrusion spring 28, spacing dop 30 and notch 27 are the block no longer, easily take off second sleeve pipe 10, dismantle cleanly.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that the scope of the invention be defined by the appended claims.
Claims (8)
1. The utility model provides a universal pliers for minimal access surgery which characterized in that: comprises a pushing assembly, a rotating wheel assembly and a shearing head assembly; the pushing assembly comprises a handle fixing block (1); the handle fixing block (1) is in threaded connection with a lantern ring (2); the handle fixing block (1) is provided with a notch; a handle movable block (4) which is rotationally connected with the handle fixed block (1) through a rotating shaft (3) is arranged at the notch; the handle fixing block (1) is provided with a through hole (39); a placing groove (5) is arranged on the handle movable block (4); a transmission shaft (6) penetrating through the through hole (39) is arranged in the placing groove (5); the rotating wheel assembly comprises a circular plate (7) and a rotating wheel (8); a sleeve (9) sleeved on the surface of the transmission shaft (6) is fixedly connected to the circular plate (7); the sleeve (9) is connected with the handle fixing block (1) through a limiting piece; a second sleeve (10) is fixedly connected to the rotating wheel (8); the second sleeve (10) is rotationally connected with the sleeve (9); the circular plate (7) is connected with the rotating wheel (8) through a second limiting piece; the shearing head assembly comprises an upper shearing head (11) and a lower shearing head (41) which is rotationally connected with the upper shearing head (11) through a second rotating shaft (12); one end of the upper shearing head (11) close to the second rotating shaft (12) is a bending structure (13); the bending structure (13) is rotatably connected with a connecting plate (15) through a third rotating shaft (14); the connecting plate (15) is hinged with the transmission shaft (6); a third sleeve (16) is sleeved on the second sleeve (10); two arc-shaped limiting grooves (17) are formed in the third sleeve (16); an arc-shaped plate (18) attached to the second sleeve (10) is arranged in the third sleeve (16); the arc-shaped plate (18) is fixedly connected with a limiting column (42) arranged in the arc-shaped limiting groove (17); the two arc plates (18) are respectively and fixedly connected with a connecting block (19); the lower shearing head (41) is fixedly connected with a second connecting block (20); the connecting block (19) is rotationally connected with a second connecting block (20); the connecting block (19) is rotatably connected with a connecting plate (21); the connecting plate (21) is rotationally connected with the other connecting block (19);
2. the universal forceps for minimally invasive surgery as claimed in claim 1, wherein: the limiting piece comprises a threaded sleeve (22) fixedly connected with the handle fixing block (1); a threaded rod (23) is connected to the threaded sleeve (22) in a threaded manner; the threaded rod (23) is connected with a fixing rod (24) which penetrates through the threaded rod (23) in a sliding manner; the upper end of the fixing rod (24) is in threaded connection with a nut (25); the fixing rod (24) is fixedly connected with a limiting column (26) arranged at the lower end of the threaded rod (23); a notch (27) is arranged on the limiting column (26); a spring (28) with the lower end arranged at the outer end of the notch (27) is arranged in the notch (27).
3. The universal forceps for minimally invasive surgery according to claim 1, characterized in that: a placing pipe (29) with the lower end being plugged is fixedly connected to the handle fixing block (1); the lower end of the spring (28) is arranged in the placing pipe (29).
4. The universal forceps for minimally invasive surgery according to claim 1, characterized in that: and a limiting clamping head (30) which is matched with the notch (27) and penetrates through the notch (27) is arranged on the transmission shaft (6).
5. The universal forceps for minimally invasive surgery as claimed in claim 1, wherein: the end of the transmission shaft (6) arranged in the placing groove is of a spherical structure.
6. The universal forceps for minimally invasive surgery as claimed in claim 1, wherein: a limiting groove (31) is formed in the sleeve (9); the inner wall of the lantern ring (2) is fixedly connected with a limiting block (32) matched with the limiting groove (31).
7. The universal forceps for minimally invasive surgery as claimed in claim 1, wherein: a circular groove (33) is formed in the rotating wheel (8); the circular groove (33) is communicated with a limiting sliding groove (34); a second spring (35) fixedly connected with the rotating wheel (8) is arranged in the circular groove (33); the second spring (35) is provided with a sliding block (36) which is arranged in the circular groove (33) and the limiting sliding groove (34) in a contact manner; a second limiting column (37) is fixedly connected to the sliding block (36); a limiting opening (40) is formed in the circular plate (7); one end of the second limit column (37) is arranged in the limit opening (40).
8. The universal forceps for minimally invasive surgery as claimed in claim 1, wherein: a limiting fixing column (43) is fixedly connected to the second sleeve (10); the limiting fixing column (43) is arranged between the two arc-shaped plates (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139766.9A CN115553875A (en) | 2022-09-19 | 2022-09-19 | Universal forceps for minimally invasive surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139766.9A CN115553875A (en) | 2022-09-19 | 2022-09-19 | Universal forceps for minimally invasive surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115553875A true CN115553875A (en) | 2023-01-03 |
Family
ID=84741157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211139766.9A Pending CN115553875A (en) | 2022-09-19 | 2022-09-19 | Universal forceps for minimally invasive surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115553875A (en) |
-
2022
- 2022-09-19 CN CN202211139766.9A patent/CN115553875A/en active Pending
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