CN114052881A

CN114052881A - Steel plate pre-bending device for orthopedic clinical operation

Info

Publication number: CN114052881A
Application number: CN202111230803.2A
Authority: CN
Inventors: 胡通洲
Original assignee: Xiangshan First People's Hospital Medical And Health Group
Current assignee: Xiangshan First People's Hospital Medical And Health Group
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-02-18

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a steel plate pre-bending device for orthopedic clinical operation, which comprises a support frame, wherein a top plate is arranged at the upper end of the support frame, a strip-shaped vertical groove penetrating through the lower end and the rear end of the top plate is formed at the top end of the top plate, a U-shaped rail corresponding to the strip-shaped vertical groove is fixedly connected at the lower end of the top plate, a rack is slidably connected in the U-shaped rail, a circular groove is formed at the front end of the rack, a baffle ring is fixedly connected at the opening of the circular groove, a rotary column is sleeved in the baffle ring, a plurality of spiral strips are uniformly arranged on the side surface of the rotary column, a plurality of spiral grooves matched with the spiral strips are formed in the inner wall of the baffle ring, a strip-shaped piece is fixedly connected at the front end of the rotary column, a first piston in sealed sliding connection with the circular groove is fixedly connected at the rear end of the rotary column, a limiting ring fixedly connected with the circular groove is arranged at the rear end of the first piston, the steel plate pre-bending device can conveniently bend a steel plate, the bending operation is simpler, the bending efficiency can be improved.

Description

Steel plate pre-bending device for orthopedic clinical operation

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a steel plate pre-bending device for orthopedic clinical operation.

Background

In clinical orthopedics, steel plate screw internal fixation is a more common treatment means, is mostly used for cases of incapability of manual reduction and failure of external fixation, and is particularly suitable for fracture of long bones of limbs. In the steel plate screw internal fixation, the shape of a medical steel plate is matched with the physiological bending of a fracture part, so that the good inosculation between the medical steel plate and the fractured bone is ensured, the fixation effect of the fractured bone and the firmness of the medical steel plate after the medical steel plate is fixed by screws are improved, most of the existing medical steel plates are processed according to the position and the specification, and the physiological differences reflected by different cases are difficult to be considered, so that the medical steel plate is pre-bent to be more inosculated with the fractured bone and is often necessary operation before the internal fixation of the medical steel plate is implemented. At present, no professional medical steel plate pre-bending device exists clinically, simple tools such as a wrench and a pliers are mostly adopted to bend medical steel plates, the operation mode is troublesome, the efficiency is low, and the steel plate pre-bending device for the orthopedic clinical operation is provided aiming at the problems.

Disclosure of Invention

The purpose of the invention is: aims to provide a steel plate pre-bending device for orthopedic clinical operation, which is used for solving the problems existing in the background technology.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

the steel plate pre-bending device for the orthopedic clinical operation comprises a support frame, wherein a top plate is arranged at the upper end of the support frame, a strip-shaped vertical groove penetrating through the lower end and the rear end of the top plate is formed in the top end of the top plate, a U-shaped rail corresponding to the strip-shaped vertical groove is fixedly connected to the lower end of the top plate, a rack is connected in the U-shaped rail in a sliding mode, a circular groove is formed in the front end of the rack, a baffle ring is fixedly connected to the opening of the circular groove, a rotary column is sleeved in the baffle ring, a plurality of spiral strips are uniformly arranged on the side face of the rotary column, a plurality of spiral grooves matched with the spiral strips are formed in the inner wall of the baffle ring, a strip-shaped piece is fixedly connected to the front end of the rotary column, a first piston connected with the circular groove in a sealing and sliding mode is fixedly connected to the rear end of the rotary column, and a limiting ring fixedly connected with the circular groove is arranged on the rear side of the first piston;

the upper side of the top plate is rotatably connected with a gear meshed with the rack, the peripheral side face of the gear is fixedly connected with a hard tube, one side, far away from the gear, of the interior of the hard tube is connected with a second piston in a sealing and sliding mode, the side face of the second piston is provided with a shifting block penetrating through the hard tube, the side face of the hard tube is provided with a moving groove matched with the shifting block, one side, close to the gear, of the hard tube is fixedly connected with a hose communicated with the interior of the hard tube, the other end of the hose is fixedly connected with the rear end of the rack and communicated with the interior of the circular groove, and the circular groove, the hose and the interior of the hard tube are filled with hydraulic oil;

the lower side of the front end of the top plate is fixedly connected with a supporting plate, the rear end of the supporting plate is rotatably connected with a circular plate corresponding to the strip-shaped vertical groove, the edge of the circular plate is provided with a plurality of rectangular grooves which are arranged in a penetrating manner from front to back, one end of each rectangular groove, which is close to the edge of the circular plate, is provided with a limiting through groove which penetrates through the peripheral side face of the circular plate, the width of each limiting through groove is smaller than that of the rectangular groove, a plurality of rectangular blocks are assembled in the rectangular grooves and are of hollow structures, the rear ends of the rectangular blocks are provided with through grooves matched with the strip-shaped parts, a plurality of rectangular blocks are fixedly connected with bending rollers which extend out of the limiting through grooves, the bending rollers are divided into various specifications according to different diameters and shapes, the rear sides of the circular plates are provided with U-shaped baffles connected with the top plate, the U-shaped baffles correspond to the positions of the rectangular grooves, and the upper ends of the supporting plate are fixedly connected with press blocks corresponding to the strip-shaped vertical grooves, the front end of the pressing block is provided with a V-shaped groove matched with the bending roller, and the top plate is provided with a strip-shaped transverse groove matched with the bending roller.

U-shaped baffle rear end downside fixedly connected with cylinder, the cylinder is located the U-shaped rail under, the assembly groove in stretching into the cylinder is seted up to U-shaped baffle front end, the assembly inslot portion has been assembled spring and ball from inside to outside in proper order, a plurality of and ball assorted circle recess have been seted up to the plectane rear end, the circle recess is unanimous with the quantity of rectangular channel, and every circle recess sets up the offside at every rectangular channel, circle recess diameter is less than the diameter of ball.

The length of the rectangular block is greater than the distance from the circular plate to the rear end of the V-shaped groove.

The through groove penetrates through the front end of the rectangular block.

The roof upper end left and right sides all is equipped with gear assorted safety cover.

The U-shaped baffle is detachably connected with the top plate.

The support frame includes the bottom plate, bottom plate upper end fixedly connected with a plurality of bracing piece, roof fixed connection is on a plurality of bracing piece.

The front end of the circular plate is provided with a plurality of fan-shaped grooves.

The invention provides a steel plate pre-bending device for an orthopedic clinical operation, which can be used for bending a steel plate very conveniently, is simple in bending operation and can be used for improving the bending efficiency.

Drawings

The invention is further illustrated by the non-limiting examples given in the figures.

FIG. 1 is a first schematic structural diagram of a steel plate pre-bending device for orthopedic clinical operation according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram II of an embodiment of a steel plate pre-bending device for orthopedic clinical operation according to the present invention;

FIG. 3 is a schematic view of a partial cross-sectional structure of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is an enlarged view of the structure at B in FIG. 3;

FIG. 6 is a schematic structural view of a circular plate of the present invention;

FIG. 7 is a schematic view of the construction of the rotor and the helical bars of the present invention;

FIG. 8 is a schematic view of the construction of the rectangular block and the crimping rollers of the present invention;

FIG. 9 is a schematic view of the bending roll of the present invention having a ring-shaped protrusion in the middle;

FIG. 10 is a schematic structural diagram of a pressing block provided with a V-shaped groove in the middle.

The main element symbols are as follows:

the support frame comprises a support frame 1, a top plate 2, a strip-shaped vertical groove 21, a U-shaped rail 22, a rack 23, a circular groove 24, a baffle ring 25, a rotary column 26, a spiral strip 27, a spiral groove 28, a strip-shaped member 3, a first piston 31, a limiting ring 32, a gear 33, a hard tube 34, a second piston 35, a shifting block 36, a moving groove 37, a hose 38, a support plate 4, a circular plate 41, a rectangular groove 42, a limiting through groove 43, a rectangular block 44, a through groove 45, a bending roller 46, a U-shaped baffle 47, a pressing block 48, a V-shaped groove 49, a strip-shaped transverse groove 491, a cylinder 5, an assembling groove 51, a spring 511, a ball 52, a circular groove 53, a protective cover 6, a bottom plate 7, a support rod 71, a fan-shaped groove 72, an annular protrusion 8 and a V-shaped groove 81.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-10, the steel plate pre-bending device for orthopedic clinical operation of the present invention comprises a support frame 1, wherein a top plate 2 is arranged at the upper end of the support frame 1, a strip-shaped vertical groove 21 penetrating through the lower end and the rear end of the top plate 2 is arranged at the top end of the top plate 2, a U-shaped rail 22 corresponding to the strip-shaped vertical groove 21 is fixedly connected to the lower end of the top plate 2, a rack 23 is slidably connected to the U-shaped rail 22, a circular groove 24 is arranged at the front end of the rack 23, a stop ring 25 is fixedly connected to the opening of the circular groove 24, a rotary column 26 is sleeved in the stop ring 25, a plurality of spiral strips 27 are uniformly arranged on the side surface of the rotary column 26, a plurality of spiral grooves 28 matched with the spiral strips 27 are arranged on the inner wall of the stop ring 25, a strip-shaped member 3 is fixedly connected to the front end of the rotary column 26, a first piston 31 in sealing and sliding connection with the circular groove 24 is fixedly connected to the rear end of the rotary column 26, and a limit ring 32 fixedly connected to the circular groove 24 is arranged on the rear side of the first piston 31;

the upper side of the top plate 2 is rotatably connected with a gear 33 engaged with the rack 23, the peripheral side surface of the gear 33 is fixedly connected with a hard tube 34, one side of the interior of the hard tube 34, which is far away from the gear 33, is hermetically and slidably connected with a second piston 35, the side surface of the second piston 35 is provided with a shifting block 36 penetrating through the hard tube 34, the side surface of the hard tube 34 is provided with a moving groove 37 matched with the shifting block 36, one side of the hard tube 34, which is close to the gear 33, is fixedly connected with a hose 38 communicated with the interior of the hard tube 34, the other end of the hose 38 is fixedly connected with the rear end of the rack 23 and is communicated with the interior of the circular groove 24, and the circular groove 24, the hose 38 and the hard tube 34 are filled with hydraulic oil;

the lower side of the front end of the top plate 2 is fixedly connected with a supporting plate 4, the rear end of the supporting plate 4 is rotatably connected with a circular plate 41 corresponding to the strip-shaped vertical groove 21, the edge of the circular plate 41 is provided with a plurality of rectangular grooves 42 which are arranged in a penetrating way from front to back, one end of each rectangular groove 42, which is close to the edge of the circular plate 41, is provided with a limiting through groove 43 which penetrates through the peripheral side surface of the circular plate 41, the width of the limiting through groove 43 is smaller than that of the rectangular groove 42, the rectangular grooves 42 are all provided with rectangular blocks 44, each rectangular block 44 is of a hollow structure, the rear end of each rectangular block 44 is provided with a through groove 45 matched with the strip-shaped part 3, each rectangular block 44 is fixedly connected with a bending roller 46 which extends out of the limiting through groove 43, each bending roller 46 is divided into a plurality of specifications according to different diameters and shapes, the rear side of each circular plate 41 is provided with a U-shaped baffle 47 connected with the top plate 2, the U-shaped baffle 47 corresponds to the position of the rectangular groove 42, the upper end of the supporting plate 4 is fixedly connected with a pressing block 48 corresponding to the position of the vertical groove 21, the front end of the pressing block 48 is provided with a V-shaped groove 49 matched with the bending roller 46, and the top plate 2 is provided with a strip-shaped transverse groove 491 matched with the bending roller 46.

The circular plate 41 can rotate relative to the support plate 4, the circular plate 41 can drive each rectangular block 44 and the bending rollers 46 to rotate together when rotating, the rectangular groove 42 can be aligned with the U-shaped rail 22 when rotating to the upper side of the circular plate 41, after the rectangular groove 42 and the U-shaped rail 22 are aligned, the rectangular block 44 in the rectangular groove 42 can slide into the U-shaped rail 22, and the bending rollers 46 on the rectangular block 44 are in a vertically upward state;

the limiting through groove 43 can limit the rectangular block 44, so that the rectangular block 44 is prevented from falling out through the limiting through groove 43, the support plate 4 can limit the front end of the rectangular groove 42, the rectangular block 44 is prevented from falling out of the front end of the rectangular groove 42, the U-shaped baffle 47 can limit the rear end of the rectangular groove 42, the rectangular block 44 is prevented from falling out of the rear end of the rectangular groove 42, the opening in the upper middle of the U-shaped baffle 47 can allow the rectangular block 44 on the upper side of the circular plate 41 to be separated from the rear end of the rectangular groove 42, and the rectangular block 44 in the rectangular groove 42 can move into the U-shaped rail 22;

when a user dials the shifting block 36, the shifting block 36 can drive the second piston 35 to move up and down in the hard tube 34;

when the second piston 35 moves towards one side of the gear 33, the second piston 35 can push hydraulic oil in the hard tube 34 into the circular groove 24, so that the hydraulic oil in the circular groove 24 pushes the first piston 31 to drive the rotary column 26 and the strip-shaped part 3 to move forwards together, and in the forward movement process of the rotary column 26, the spiral strip 27 can guide the rotary column 26 by matching with the spiral groove 28, so that the rotary column 26 rotates simultaneously in the forward movement process, and when the first piston 31 abuts against the baffle ring 25, the strip-shaped part 3 cannot move forwards continuously and stops rotating;

when the second piston 35 moves towards the side far away from the gear 33, the second piston 35 can suck hydraulic oil in the circular groove 24 into the hard tube 34, negative pressure is formed in the circular groove 24, so that the first piston 31, the rotary column 26 and the strip-shaped part 3 are driven to move backwards together, the spiral strip 27 can guide the rotary column 26 by matching with the spiral groove 28 in the backward movement process of the rotary column 26, the rotary column 26 can rotate simultaneously in the backward movement process, and when the first piston 31 is abutted against the limiting ring 32, the strip-shaped part 3 cannot move backwards continuously and stops rotating simultaneously;

when the first piston 31 abuts against the baffle ring 25 and abuts against the first piston 31 and the limit ring 32, the angle positions of the strip-shaped members 3 are inconsistent;

when the first piston 31 and the stopper ring 25 abut against each other, the angular position of the strip 3 does not coincide with the angular position of the through groove 45 of the rectangular block 44 located on the upper side of the circular plate 41, that is, the strip 3 cannot pass through the through groove 45 located on the upper side;

when the first piston 31 and the retainer ring 32 are in contact with each other, the angular position of the strip 3 coincides with the angular position of the through groove 45 of the rectangular block 44 located on the upper side of the circular plate 41, that is, the strip 3 can pass through the through groove 45 located on the upper side;

now, assuming that the diameter of the bending roller 46 needs to be 20mm, when the steel plate is used, the circular plate 41 is rotated, the bending roller 46 with the diameter of 20mm is rotated above the circular plate 41, the rectangular block 44 of the bending roller 46 is aligned with the U-shaped rail 22, at this time, the user pushes the shift block 36 to the side far away from the gear 33, the first piston 31 is abutted against the limit ring 32, the angular position of the strip 3 is kept consistent with the angular position of the through groove 45, at this time, the hard tube 34 is rotated to the rear side, the hard tube 34 drives the gear 33 to rotate, the gear 33 drives the rack 23 engaged with the gear 33 to move forward when rotating, the rack 23 drives the strip 3 to move forward when moving forward, after the strip 3 passes through the through groove 45, the shift block 36 is shifted to the side of the gear 33, the first piston 31 is abutted against the stop ring 25, and the angular position of the strip 3 is staggered from the angular position of the through groove 45, at this time, the steel plate to be bent is placed between the bending roller 46 and the pressing block 48, the position of the steel plate to be bent is aligned between the V-shaped groove 49 and the bending roller 46, at this time, a user rotates the hard tube 34 forward, the hard tube 34 drives the rack 23 to move backward through the gear 33 when rotating forward, the rack 23 drives the strip 3 to move backward during the backward movement, because the angular position of the strip 3 is already dislocated with the angular position of the through groove 45 at this time, the strip 3 abuts against the inner rear wall of the rectangular block 44 and pulls the rectangular block 44 to move backward during the backward movement, the rectangular block 44 gradually separates from the rectangular groove 42 and moves into the U-shaped rail 22 during the backward movement, the continuous movement of the rectangular block 44 drives the bending roller 46 to continuously press the steel plate, so that the steel plate can be bent under the interaction of the bending roller 46 and the V-shaped groove 49, the steel plate with the bending diameter of 20mm can be obtained, the bending operation mode is simple, the efficiency is high, the steel plate can be taken down by rotating the hard pipe 34 forward by a little angle, and a new steel plate can be placed into the hard pipe after the steel plate is taken down for bending, so that the steel plate can be conveniently and repeatedly bent;

after the steel plate is bent, the hard tube 34 is rotated backwards, the gear 33 drives the rack 23 to move forwards, the front end of the rack 23 pushes the rectangular block 44 to move backwards, after the rectangular block 44 completely moves into the rectangular groove 42, the shifting block 36 is pushed towards the side far away from the gear 33, the first piston 31 is abutted against the limiting ring 32, the angular position of the strip-shaped part 3 is kept consistent with the angular position of the through groove 45, then the rigid tube 34 is rotated forward, at which point the strip 3 can exit the through slot 45, at which point the user can rotate the circular plate 41, the circular plate 41 can drive the bending rollers 46 to rotate, thus, the user can conveniently and quickly switch the bending rollers 46 with other specifications, and because the bending rollers 46 with various specifications are arranged on the circular plate 41, therefore, the bending diameter of the steel plate can be selected according to the requirement, so that different radius requirements can be met, and different use conditions can be applied.

U-shaped baffle 47 rear end downside fixedly connected with cylinder 5, cylinder 5 is located U-shaped rail 22 under, U-shaped baffle 47 front end is seted up and is stretched into assembly groove 51 in cylinder 5, assembly groove 51 is inside from inside to outside to be equipped with spring 511 and ball 52 in proper order, a plurality of and ball 52 assorted circle recess 53 have been seted up to plectane 41 rear end, circle recess 53 is unanimous with rectangular channel 42's quantity, and every circle recess 53 sets up the offside at every rectangular channel 42, circle recess 53 diameter is less than ball 52's diameter.

The spring 511 can push the ball 52 to the side of the U-shaped baffle plate 47 under the natural state, so that the ball 52 is kept in contact with the back wall of the U-shaped baffle plate 47, when the rectangular groove 42 opposite to the circular groove 53 rotates to the upper side of the circular plate 41, the circular groove 53 is aligned with the assembling groove 51, at this time, the ball 52 is pushed into the circular groove 53 by the spring 511, so that the ball 52 can limit the circular plate 41, the circular plate 41 is prevented from rotating freely, therefore, the alignment of the rectangular groove 42 and the U-shaped rail 22 is facilitated, when a user rotates the circular plate 41 by force, the edge of the circular groove 53 applies a backward pushing force to the ball 52, and the ball 52 compresses the spring 511 and is arranged in the assembling groove 51, so that the circular plate 41 can rotate.

The rectangular block 44 has a length greater than the distance from the circular plate 41 to the rear end of the V-shaped groove 49.

When the rectangular block 44 is separated from the rectangular groove 42, the rectangular block will not completely separate from the rectangular groove 42, so that the circular plate 41 can be prevented from rotating when the steel plate is bent, and the rectangular block 44 can be smoothly withdrawn when the rectangular groove 42 is withdrawn, without re-positioning.

The through groove 45 penetrates the front end of the rectangular block 44.

This arrangement eliminates the need to distinguish between the front and back sides of the rectangular block 44 when the rectangular block 44 is assembled in the rectangular slot 42 to facilitate the assembly of the rectangular block 44.

The left side and the right side of the upper end of the top plate 2 are both provided with a protective cover 6 matched with the gear 33.

The protective cover 6 can protect the gear 33 and prevent other objects from easily contacting the gear 33.

The U-shaped baffle plate 47 is detachably connected with the top plate 2.

The U-shaped baffle 47 is detached to facilitate the disassembly and assembly of the rectangular block 44.

The support frame 1 comprises a bottom plate 7, a plurality of support rods 71 are fixedly connected to the upper end of the bottom plate 7, and the top plate 2 is fixedly connected to the plurality of support rods 71.

The front end of the circular plate 41 is provided with a plurality of fan-shaped grooves 72.

The sector groove 72 can reduce the mass of the circular plate 41 to facilitate the user to rotate the circular plate 41.

As shown in fig. 9-10, the bending roller 46 is provided with a ring of annular protrusions 8 at the middle part thereof, and a V-shaped groove 81 matching with the annular protrusions 8 at the middle part of the V-shaped groove 49, so that the bending roller 46 can bend the steel plate having the groove at the middle part thereof.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides an orthopedics clinical operation steel sheet preflex device, includes the support frame, its characterized in that: the upper end of the support frame is provided with a top plate, the top end of the top plate is provided with a strip-shaped vertical groove penetrating through the lower end and the rear end of the top plate, the lower end of the top plate is fixedly connected with a U-shaped rail corresponding to the strip-shaped vertical groove, a rack is connected in the U-shaped rail in a sliding manner, the front end of the rack is provided with a circular groove, the opening of the circular groove is fixedly connected with a baffle ring, a rotary column is sleeved in the baffle ring, the side surface of the rotary column is uniformly provided with a plurality of spiral strips, the inner wall of the baffle ring is provided with a plurality of spiral grooves matched with the spiral strips, the front end of the rotary column is fixedly connected with a strip-shaped piece, the rear end of the rotary column is fixedly connected with a first piston in a sealing and sliding connection with the circular groove, and the rear side of the first piston is provided with a limiting ring fixedly connected with the circular groove;

2. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: u-shaped baffle rear end downside fixedly connected with cylinder, the cylinder is located the U-shaped rail under, the assembly groove in stretching into the cylinder is seted up to U-shaped baffle front end, the assembly inslot portion has been assembled spring and ball from inside to outside in proper order, a plurality of and ball assorted circle recess have been seted up to the plectane rear end, the circle recess is unanimous with the quantity of rectangular channel, and every circle recess sets up the offside at every rectangular channel, circle recess diameter is less than the diameter of ball.

3. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: the length of the rectangular block is greater than the distance from the circular plate to the rear end of the V-shaped groove.

4. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: the through groove penetrates through the front end of the rectangular block.

5. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: the roof upper end left and right sides all is equipped with gear assorted safety cover.

6. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: the U-shaped baffle is detachably connected with the top plate.

7. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: the support frame includes the bottom plate, bottom plate upper end fixedly connected with a plurality of bracing piece, roof fixed connection is on a plurality of bracing piece.

8. The steel plate pre-bending device for the clinical orthopedic surgery according to claim 1, wherein: the front end of the circular plate is provided with a plurality of fan-shaped grooves.