CN117224195A - Bone removal and bone removal circular cutting instrument for orthopedics department - Google Patents

Abstract

The invention provides an osteotomy circular cutting instrument for orthopaedics, and relates to the technical field of orthopaedics instruments. The circular cutting instrument for bone removal and bone removal comprises a central fixed cylinder, wherein the left side of the central fixed cylinder is fixedly connected with a positioning clamping assembly, the right side of the central fixed cylinder is fixedly connected with a control assembly, the side wall of the control assembly is fixedly connected with a locking assembly, and the positioning clamping assembly is provided with a circular saw assembly; the locking assembly comprises a fixed sleeve, the fixed sleeve is fixedly connected to the front side wall of the fixed strip, a fan-shaped limiting groove is formed in the front side wall of the fixed sleeve, the front side wall of the fixed sleeve is rotationally connected with the push handle, the rear portion of the inner side wall of the fixed sleeve is fixedly connected with a bearing, and the inner ring portion of the bearing is fixedly connected with a rotating shaft of the clamping ratchet wheel. The butt-joint linkage hinge handle rotates along the additionally arranged rotating pin by a small angle through the arc sliding of the sliding pin, forms clamping force with the fixed hinge handle, and clamps and positions bones.

Description

Bone removal and bone removal circular cutting instrument for orthopedics department

Technical Field

The invention relates to the technical field of orthopaedics instruments, in particular to an annular cutting instrument for orthopaedics bone removal.

Background

Ultrasonic instruments are particularly effective in cutting devices for cutting bone tissue. The present invention relates to a surgical instrument for removing bone having a shaft extending in a longitudinal direction with a sonotrode at its distal end, the sonotrode having a distal end piece equipped with a punch or blade for perforating bone using mechanical vibrations.

Another field of application for rongeurs may be arthroscopic treatment. Arthroscopy has become one of the most popular orthopedic surgical techniques over the past period of time, even very complex surgery can be performed without opening the joint. Arthroscopic surgery is widely supported by the ever-improving medical devices and instruments, and today's medicine allows the use of arthroscopy not only for larger joints, such as the knee or shoulder, but also for small joints, such as the wrist or ankle, where the surgery is long, where the patient is uncomfortable and where the wound healing is slow, where if the patient is weak and where the wound healing is poor, and where the medical staff is separating with the surgical instrument, the medical staff is required to hold the surgical instrument and keep it separate, where the force is applied for a long time, and where the physical effort of the medical staff is extremely expended, thus dispersing the efforts of the medical staff.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an annular cutting instrument for bone removal and bone removal in orthopaedics, which solves the problems that the annular cutting efficiency is high, and medical staff applies force for a long time and extremely consumes self physical strength during the annular cutting operation of bones.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the circular cutting instrument for bone removal and bone removal in orthopaedics comprises a central fixed cylinder, wherein the left side of the central fixed cylinder is fixedly connected with a positioning clamping assembly, the right side of the central fixed cylinder is fixedly connected with a control assembly, the side wall of the control assembly is fixedly connected with a locking assembly, and the positioning clamping assembly is provided with a circular saw assembly; the locking assembly comprises a fixing sleeve, the fixing sleeve is fixedly connected to the front side wall of a fixing strip, a fan-shaped limiting groove is formed in the front side wall of the fixing sleeve, the front side wall of the fixing sleeve is rotationally connected with a push handle, a bearing is fixedly connected to the rear portion of the inner side wall of the fixing sleeve, the inner ring portion of the bearing is fixedly connected with a rotating shaft of a clamping ratchet, the clamping ratchet is rotationally connected with the fixing sleeve through the bearing, the rear portion of the rotating shaft of the clamping ratchet is fixedly connected with a rotating pin II, the right side of the rear portion of the inner side wall of the fixing sleeve is rotationally connected with two groups of vertically symmetrical clamping rods, the upper portion and the lower portion of the inner side wall of the fixing sleeve are fixedly connected with a group of clamping springs, two groups of clamping rods are fixedly connected to two side ends of the clamping springs respectively, and the rear portion of the rotating shaft of the push handle is fixedly connected with a fan-shaped switching block.

Preferably, the positioning and clamping assembly comprises a fixed hinge handle, a first rotating pin is fixedly connected to the middle lower portion of the fixed hinge handle, a linkage hinge handle is rotatably connected to the front side portion of the first rotating pin, and a sliding pin is fixedly connected to the upper portion of the linkage hinge handle.

Preferably, the control assembly comprises a fixing strip, the right end of the fixing strip is fixedly connected with a fixing grab handle, the middle lower part of the fixing grab handle is fixedly connected with a rotating pin II, and the rotating pin II is rotationally connected with a force application grab handle.

Preferably, the circular saw assembly comprises a first arc seat, the first arc seat is fixedly connected to the bottom of a fixed hinge handle, the second arc seat is fixedly connected to the top of a linkage hinge handle, the second arc seat is fixedly connected with an arc bearing pad, an arc chute is formed in the first arc seat, an arc sliding rod is slidably connected to the inner portion of the arc chute, an arc rack is fixedly connected to the top of the arc sliding rod, and a driving gear is connected to the inner portion of the first arc seat in a rotating mode.

Preferably, an arc rack is fixedly connected to the first inner part of the arc seat, and a rotating shaft of the driving gear is fixedly connected to a motor shaft of the arc rack.

Preferably, the fixed hinge handle is fixedly connected to the left end of the central fixed cylinder, an arc chute is formed in the middle right part of the fixed hinge handle, and the sliding pin is slidably connected with the arc chute.

Preferably, the front side part of the sliding pin is rotationally connected with the first linkage end block, the right side of the first linkage end block is fixedly connected with a inhaul cable, and the inhaul cable extends to the inside of the central fixed cylinder.

Preferably, the fixing strip is fixedly connected with the right end of the central fixing cylinder, and the left part in the force application grab handle is fixedly connected with the rotary bolt III.

Preferably, the middle part of the rotating bolt III is rotationally connected with a linkage end block II, and the left side of the linkage end block II is fixedly connected with the right side end of the inhaul cable.

Preferably, the inner side wall of the fan-shaped limiting groove is rotationally connected with the push handle, and the rotating shaft of the push handle penetrates through the fixed sleeve and extends into the fixed sleeve.

Working principle: firstly, medical staff directly operate the control component, hold the fixed grab handle by one hand, drive the rotating pin II to rotate on the fixed grab handle by holding and pressing the force application grab handle, drive the linkage end block II which is additionally arranged by the rotating bolt III to move while the force application grab handle rotates, enable the guy cable which is fixed by the linkage end block II to move telescopically in the central fixed cylinder, drive the positioning clamping component to operate by the movement of the guy cable, drive the fixed sliding pin to do arc sliding displacement along the arc chute which is additionally arranged by the fixed hinge handle while the guy cable moves, the arc sliding of the sliding pin enables the butted linkage hinge handle to rotate at a small angle along the additionally arranged rotating pin to form clamping force with the fixed hinge handle, clamp the bone, and enable the locking component at the same time when the control component is held and pressed by staff, the rotation of the rotating pin II drives the clamping ratchet wheel additionally arranged in the fixed sleeve to rotate along the bearing, the rotation of the clamping ratchet wheel drives a group of meshed clamping rods to rotate, the clamping springs corresponding to the clamping rods always enable the group of clamping rods to restore to the meshed state with the clamping ratchet wheel, the clamping ratchet wheel can not rotate due to the meshing of the group of clamping rods, the rotating pin II and the force application grab handle can not rotate, so that the automatic locking of the clamping capacity is realized, the fan-shaped switching block fixed at the rear end of the rotating shaft of the push handle can also rotate through the rotating push handle, so that the clamping rods of the group of clamping rods originally stacked on the fan-shaped switching block are meshed with the clamping ratchet wheel under the action of the corresponding clamping springs, the other group of clamping rods are stacked on the protruding parts of the fan-shaped switching block to be separated from the clamping ratchet wheel, the clamping ratchet wheel can realize reverse locking, the force application time of personnel is reduced, when the arc bearing pad arranged on the arc seat II (52) supports bone, the annular saw mechanism is started at the same time, after the arc rack contained in the annular saw mechanism is started, the driving gear additionally arranged at the output end of the annular saw mechanism is driven to rotate clockwise and anticlockwise, the arc rack meshed with the driving gear drives the arc sliding rod to slide in the arc sliding groove formed in the arc seat I in a reciprocating manner, and the control motor additionally arranged at the bottom of the arc sliding rod forms sawing force through reciprocating movement to position and saw bone.

The invention provides an osteotomy circular cutting instrument for orthopaedics. The beneficial effects are as follows:

1. according to the invention, a medical staff directly operates the control assembly, a fixed grab handle is held by one hand, the force application grab handle is held and pressed to enable the force application grab handle to drive the rotary pin II to rotate on the fixed grab handle, the force application grab handle is rotated and simultaneously drives the linkage end block II which is additionally arranged through the rotary bolt III to move, so that a guy cable which is fixed by the linkage end block II stretches and moves in the central fixed cylinder, the movement of the guy cable drives the positioning clamping assembly to operate, the linkage end block I which is fixed at the other side end of the guy cable drives the fixed sliding pin to carry out arc sliding displacement along an arc chute which is additionally arranged on the fixed hinge handle while the guy cable moves, and the arc sliding of the sliding pin enables the butted linkage hinge handle to rotate at a small angle along the additionally arranged rotary pin II to form clamping force with the fixed hinge handle, and clamp and position the guy bone.

2. According to the invention, when a person holds the control assembly, the locking assembly is started along with the control assembly, the rotation of the clamping ratchet wheel drives one group of meshed clamping rods to rotate, the clamping springs corresponding to the clamping rods always enable the clamping rods to be in a meshed state with the clamping ratchet wheel, the clamping ratchet wheel cannot rotate due to the meshing of the clamping rods, the rotating pin II and the force application grab handle cannot rotate, so that the automatic locking of clamping capacity is realized, the pushing handle is rotated, the fan-shaped switching block fixed at the rear end of the rotating shaft of the pushing handle rotates, so that the clamping rods of the fan-shaped switching block originally stacked are meshed with the clamping ratchet wheel under the action of the clamping springs corresponding to the clamping rods, the other group of clamping rods are stacked by the protruding parts of the fan-shaped switching block to be separated from the clamping ratchet wheel, the clamping ratchet wheel is reversely locked, the force application time of the person is reduced, and the physical consumption of the person is reduced, and the surgical attention is more concentrated.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a schematic cross-sectional view of the internal structure of the present invention;

FIG. 3 is a schematic perspective view of a positioning and clamping assembly according to the present invention;

FIG. 4 is a schematic perspective view of a control assembly according to the present invention;

FIG. 5 is a schematic perspective view of a locking assembly of the present invention;

FIG. 6 is a schematic view of the internal structure of the locking assembly of the present invention;

FIG. 7 is a schematic view of the internal structure of the trepan assembly of the present invention;

fig. 8 is an enlarged schematic view of fig. 7 at a in accordance with the present invention.

Wherein, 1, a central fixed cylinder; 2. positioning the clamping assembly; 3. a manipulation assembly; 4. a locking assembly; 5. a trepan assembly; 21. fixing a hinge handle; 22. an arc chute; 23. a linkage hinge handle; 24. rotating the first pin; 25. a sliding pin; 26. a first linkage end block; 27. a guy cable; 31. a fixing strip; 32. a fixed grab handle; 33. rotating the second pin; 34. a force application grab handle; 35. rotating a third bolt; 36. a linkage end block II; 41. a fixed sleeve; 42. a fan-shaped limit groove; 43. a push handle; 44. a bearing; 45. a ratchet wheel is clamped; 46. a clamping rod; 47. clamping springs; 48. a sector switching block; 51. an arc seat I; 52. arc seat II; 53. an arc-shaped bearing pad; 54. an arc chute; 55. an arc slide bar; 56. an arc-shaped rack; 57. a drive gear; 58. and controlling the motor.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples:

as shown in fig. 1, the embodiment of the invention provides an orthopaedic bone removal and bone removal circular cutting instrument, which comprises a central fixed cylinder 1, a positioning and clamping assembly 2, a control assembly 3 and a locking assembly 4, wherein the left side of the central fixed cylinder 1 is fixedly connected with the positioning and clamping assembly 2, the right side of the central fixed cylinder 1 is fixedly connected with the control assembly 3, and the side wall of the control assembly 3 is fixedly connected with the locking assembly 4;

as shown in fig. 5 and 6, the locking assembly 4 comprises a fixed sleeve 41, a fan-shaped limiting groove 42, a pushing handle 43, a bearing 44, a clamping ratchet 45, a clamping rod 46, a clamping spring 47 and a fan-shaped switching block 48, wherein the fixed sleeve 41 is fixedly connected to the front side wall of the fixed bar 31, the fan-shaped limiting groove 42 is arranged on the front side wall of the fixed sleeve 41, the pushing handle 43 is rotatably connected to the front side wall of the fixed sleeve 41, the bearing 44 is fixedly connected to the rear part of the inner side wall of the fixed sleeve 41, the inner ring part of the bearing 44 is fixedly connected to the rotating shaft of the clamping ratchet 45, the clamping ratchet 45 is rotatably connected to the fixed sleeve 41 through the bearing 44, the rear part of the rotating shaft of the clamping ratchet 45 is fixedly connected to a rotating pin two 33, the right side of the rear part of the inner side wall of the fixed sleeve 41 is rotatably connected to two groups of vertically symmetrical clamping rods 46, the upper and lower parts of the inner side wall of the fixed sleeve 41 are fixedly connected to a group of clamping springs 47, two side ends of the clamping springs 47 are respectively fixedly connected to one group of clamping rods 46, the rear part of the rotating shaft of the push handle 43 is fixedly connected with a fan-shaped switching block 48, the inner side wall of the fan-shaped limiting groove 42 is rotationally connected with the push handle 43, the rotating shaft of the push handle 43 penetrates through the fixed sleeve 41 and extends into the fixed sleeve 41, a person holds the control assembly 3 and simultaneously starts the locking assembly 4, the rotation of the rotating pin II 33 drives the clamping ratchet wheel 45 additionally arranged in the fixed sleeve 41 to rotate along the bearing 44, the rotation of the clamping ratchet wheel 45 drives a group of meshed clamping rods 46 to rotate, the clamping springs 47 corresponding to the group of clamping rods 46 always enable the group of clamping rods 46 to restore the meshed state with the clamping ratchet wheel 45, the clamping ratchet wheel 45 cannot rotate due to the meshing of the group of clamping rods 46, the rotating pin II 33 and the force application grab handle 34 cannot rotate, so that automatic locking of clamping capacity is realized, or the push handle 43 can be rotated, the fan-shaped switching block 48 fixed at the rear end of the rotating shaft of the push handle 43 rotates, so that one group of clamping rods 46 at the original pile top of the fan-shaped switching block 48 are meshed with the clamping ratchet wheel 45 under the action of the corresponding clamping springs 47, the other group of clamping rods 46 are separated from the clamping ratchet wheel 45 by the pile top of the protruding part of the fan-shaped switching block 48, the clamping ratchet wheel 45 is locked reversely, the force application time of a person is shortened, and the physical consumption of the person is reduced, so that the user is more concentrated on the operation.

As shown in fig. 2 and 3, the positioning and clamping assembly 2 comprises a fixed hinge handle 21, an arc chute 22, a linkage hinge handle 23, a first rotating pin 24, a sliding pin 25, a first linkage end block 26 and a pull rope 27, wherein the first rotating pin 24 is fixedly connected to the middle lower part of the fixed hinge handle 21, the first rotating pin 24 is rotationally connected to the linkage hinge handle 23 at the front side part, the sliding pin 25 is fixedly connected to the upper part of the linkage hinge handle 23, the fixed hinge handle 21 is fixedly connected to the left end of the central fixed cylinder 1, the arc chute 22 is arranged at the right part of the fixed hinge handle 21, the sliding pin 25 is slidingly connected to the arc chute 22, the first linkage end block 26 is rotationally connected to the front side part of the sliding pin 25, the right side of the first linkage end block 26 is fixedly connected to the pull rope 27, the pull rope 27 extends into the central fixed cylinder 1, the movement of the pull rope 27 drives the first linkage end block 26 fixed to the other side end of the pull rope 27 to slide along the arc chute 22 additionally arranged on the fixed hinge handle 21 to slide along the arc chute 22 to move, and the sliding pin 25 enables the butted rotating handle 23 to rotate along the arc chute 24 to form a small rotation angle with the fixed hinge handle 21, and the clamping force is aimed at the fixed hinge.

As shown in fig. 4, the control assembly 3 includes a fixing bar 31, a fixing handle 32, a rotating pin two 33, a force application handle 34, a rotating bolt three 35 and a linkage end block two 36, the right end of the fixing bar 31 is fixedly connected with the fixing handle 32, the middle lower part of the fixing handle 32 is fixedly connected with the rotating pin two 33, the rotating pin two 33 is rotationally connected with the force application handle 34, the fixing bar 31 is fixedly connected with the right end of the central fixing cylinder 1, the left part of the force application handle 34 is fixedly connected with the rotating bolt three 35, the middle part of the rotating bolt three 35 is rotationally connected with the linkage end block two 36, the left side of the linkage end block two 36 is fixedly connected with the right end of the stay cable 27, firstly, a medical staff directly operates the control assembly 3, holds the fixing handle 32 with one hand, and drives the rotating pin two 33 to rotate on the fixing handle 32 by holding the force application handle 34, and drives the linkage end block two 36 mounted by the rotating bolt three 35 to move when the force application handle 34 rotates, so that the stay cable 27 fixed on the central fixing cylinder 1 moves in a telescopic manner.

As shown in fig. 7 and 8, the trepan assembly 5 includes a first arc seat 51, the first arc seat 51 is fixedly connected to the bottom of the fixed hinge handle 21, a second arc seat 52 is fixedly connected to the top of the linkage hinge handle 23, an arc bearing pad 53 is fixedly connected to the top of the second arc seat 52, an arc chute 54 is provided inside the first arc seat 51, an arc slide rod 55 is slidingly connected inside the arc chute 54, an arc rack 56 is fixedly connected to the top of the arc slide rod 55, a driving gear 57 is rotationally connected inside the first arc seat 51, an arc rack 56 is fixedly connected inside the first arc seat 51, a rotating shaft of the driving gear 57 is fixedly connected to a motor shaft of the arc rack 56, when the arc bearing pad 53 provided on the second arc seat 52 supports bone, the trepan mechanism 5 is started at the same time, the driving gear 57 mounted at the output end of the trepan mechanism 5 is driven to rotate clockwise after the arc rack 56 is started, the arc rack 56 meshed with the driving gear 57 drives the arc slide rod 55 to slide reciprocally inside the arc chute 54 mounted on the first arc seat 51, and a control motor 58 mounted at the bottom of the trepan mechanism forms a breaking force to position bone.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an orthopedics removes bone, takes off bone with ring cutting apparatus, includes central fixed section of thick bamboo (1), its characterized in that: the left side of the center fixed cylinder (1) is fixedly connected with a positioning clamping assembly (2), the right side of the center fixed cylinder (1) is fixedly connected with a control assembly (3), the side wall of the control assembly (3) is fixedly connected with a locking assembly (4), and the positioning clamping assembly (2) is provided with a trepan assembly (5); locking subassembly (4) are including fixed sleeve (41), fixed sleeve (41) fixed connection is at fixed strip (31) front side wall, fixed sleeve (41) front side wall is provided with fan-shaped spacing groove (42), fixed sleeve (41) front side wall rotates and connects push handle (43), fixed sleeve (41) inside wall rear portion fixed connection bearing (44), the rotation axis of ring portion fixed connection block ratchet (45) in bearing (44), fixed sleeve (41) is rotated through bearing (44) block ratchet (45), rotation pin two (33) are rotated in rotation axis rear portion fixed connection of block ratchet (45), fixed sleeve (41) inside wall rear portion right side rotates and connects two sets of block bars (46) of upper and lower symmetry, fixed sleeve (41) inside wall is upper and lower two equal fixed connection a set of jump ring (47), two sets of jump ring (47) both sides end fixed connection a set of block bar (46) respectively, the rotation axis rear portion fixed connection of push handle (43) switches piece (48).

2. The osteotomy circumferential cutting instrument as in claim 1, wherein: the positioning and clamping assembly (2) comprises a fixed hinge handle (21), a first rotating pin (24) is fixedly connected to the middle lower portion of the fixed hinge handle (21), a linkage hinge handle (23) is rotatably connected to the front side portion of the first rotating pin (24), and a sliding pin (25) is fixedly connected to the upper portion of the linkage hinge handle (23).

3. The osteotomy circumferential cutting instrument as in claim 1, wherein: the control assembly (3) comprises a fixing strip (31), the right end of the fixing strip (31) is fixedly connected with a fixing grab handle (32), the middle lower part of the fixing grab handle (32) is fixedly connected with a rotating pin II (33), and the rotating pin II (33) is rotationally connected with a force application grab handle (34).

4. The osteotomy circumferential cutting instrument as in claim 1, wherein: the circular saw assembly (5) comprises an arc seat I (51), the arc seat I (51) is fixedly connected to the bottom of a fixed hinge handle (21), an arc seat II (52) is fixedly connected to the top of a linkage hinge handle (23), an arc bearing pad (53) is fixedly connected to the top of the arc seat II (52), an arc chute (54) is arranged inside the arc seat I (51), an arc slide rod (55) is connected to the arc chute (54) in a sliding mode, an arc rack (56) is fixedly connected to the top of the arc slide rod (55), and a driving gear (57) is connected to the inner rotation of the arc seat I (51).

5. The osteotomy circumferential cutting instrument as in claim 4, wherein: the arc seat I (51) is internally and fixedly connected with an arc-shaped rack (56), and a rotating shaft of the driving gear (57) is fixedly connected to a motor shaft of the arc-shaped rack (56).

6. The osteotomy circumferential cutting instrument as in claim 2, wherein: the fixed hinge handle (21) is fixedly connected to the left end of the central fixed cylinder (1), an arc-shaped chute (22) is arranged at the right part in the fixed hinge handle (21), and the sliding pin (25) is slidably connected with the arc-shaped chute (22).

7. The osteotomy circumferential cutting instrument as in claim 2, wherein: the front side part of the sliding pin (25) is rotationally connected with a first linkage end block (26), the right side of the first linkage end block (26) is fixedly connected with a inhaul cable (27), and the inhaul cable (27) extends into the center fixing cylinder (1).

8. An orthopaedic deboning and deboning ring cutting instrument according to claim 3, wherein: the fixing strip (31) is fixedly connected with the right end of the central fixing cylinder (1), and the middle left part of the force application grab handle (34) is fixedly connected with the rotary bolt III (35).

9. The bone removing and deboning circular cutting instrument according to claim 3, wherein the middle part of the rotating bolt III (35) is rotationally connected with the linkage end block II (36), and the left side of the linkage end block II (36) is fixedly connected with the right side end of the inhaul cable (27).

10. An orthopaedic bone removal and deboning circular cutting instrument according to claim 3, wherein the inner side wall of the fan-shaped limiting groove (42) is rotatably connected with the push handle (43), and the rotating shaft of the push handle (43) penetrates through the fixing sleeve (41) and extends into the fixing sleeve (41).