CN114848079A

CN114848079A - Screw-in drilling device with depth adjusting function for orthopedic surgery

Info

Publication number: CN114848079A
Application number: CN202210394061.5A
Authority: CN
Inventors: 张银龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-05

Abstract

The invention relates to a screw-in drilling device with a depth adjusting function for orthopedic surgery, which is arranged on a bed plate and comprises a transverse plate movably arranged on the bed plate and parallel to the bed plate, the transverse plate is connected with threaded lifting mechanisms respectively arranged on two sides of the bed plate, two groups of lifting mechanisms are connected with electric push-pull mechanisms, the electric push-pull mechanisms are arranged at the bottom of the bed plate, a drill bit for drilling the leg bone of a patient is arranged on the transverse plate through a power mechanism, the power mechanism is connected with a depth display mechanism arranged on the transverse plate, a bearing plate is also movably arranged on the bed plate and connected with two groups of elastic traction mechanisms arranged on the end part of the bed plate, finally, the drilling function of the device for adjusting the depth of the leg bone of the patient is realized, and the surgical error is reduced, the problem of secondary damage to the patient caused by inaccurate drilling depth is avoided.

Description

Screw-in drilling device with depth adjusting function for orthopedic surgery

Technical Field

The invention relates to the technical field related to medical instruments, in particular to a screw-in drilling device with a depth adjusting function for orthopedic surgery.

Background

Orthopedics, a specialized or discipline of medicine, is specialized in studying the anatomy, physiology, and pathology of the skeletal muscle system, maintaining and developing the normal morphology and function of the system using drugs, surgery, and physical methods, and treating injuries and diseases of the system.

The fracture of the human limb and shaft is a common traumatic disease, the internal fixation of the compression steel plate is a common operation method, and when relevant operation treatment is carried out, generally, medical staff needs to use a drilling device to drill holes on leg bones of a patient.

However, in actual operation, the existing drilling device is usually used by being held by a medical staff, so that the final drilling depth is manually controlled by the medical staff, and therefore, the existing drilling device has a large error, may bring secondary harm to a patient, and does not achieve an ideal treatment effect.

Disclosure of Invention

The invention aims to provide a screw-in drilling device with a depth adjusting function for orthopedic surgery, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a precession type drilling device with a depth adjusting function for orthopedic surgery is arranged on a bed plate and comprises a transverse plate which is movably arranged on the bed plate and is parallel to the bed plate, the transverse plate is connected with threaded lifting mechanisms which are respectively arranged on two sides of the bed plate, two groups of lifting mechanisms are connected with electric push-pull mechanisms, and the electric push-pull mechanisms are arranged at the bottom of the bed plate;

be provided with a drill bit that is used for driling patient's shank through power unit on the diaphragm, power unit is in with the installation degree of depth display mechanism on the diaphragm connects, still the activity is provided with a bearing board on the bed board, bearing board is "U" shape setting, and demountable installation has one to carry out fixed locating part owing to the ankle department to the patient on it, the locating part is the arc form setting, bearing board connection is installed two sets of elasticity drive mechanism on the bed board tip.

As a further scheme of the invention: the power mechanism comprises a second motor installed on the transverse plate, a rotating shaft installed on the transverse plate in a rotating mode and a sleeve arranged on the rotating shaft in a sliding mode through a limiting structure, the rotating shaft is connected with the output end of the second motor, and the drill bit is fixedly installed at one end, far away from the transverse plate, of the sleeve.

As a still further scheme of the invention: the limiting structure comprises two strip-shaped bulges fixedly arranged on the periphery of the rotating shaft and two strip-shaped grooves arranged on the inner wall of the sleeve, and the strip-shaped grooves are matched with the strip-shaped bulges in a sliding mode.

As a still further scheme of the invention: the depth display mechanism is in including sliding the setting two cylinders, fixed mounting on the diaphragm are two even board and cover on the cylinder tip are established first spring in the cylinder periphery, the both ends of first spring are connected respectively the diaphragm with even board, even the board with the sleeve pipe rotates to be connected, just still be provided with the scale on the cylinder.

As a still further scheme of the invention: the thread lifting mechanism comprises a vertical plate fixedly mounted on the side of the bed plate and a telescopic plate arranged in the vertical plate in a sliding mode, a lead screw is mounted on the vertical plate in a rotating mode, a thread sleeve in threaded connection with the lead screw is arranged on the lead screw, a first motor with an output end connected with the lead screw is further mounted on the vertical plate, and one end, far away from the bed plate, of the thread sleeve is fixed with the telescopic plate.

As a still further scheme of the invention: the electric push-pull mechanism comprises two transverse rods fixedly mounted at the bottom of the bed board, sliding plates arranged on the two transverse rods in a sliding mode and an electric push rod mounted at the bottom of the bed board, the sliding plates are fixed with the vertical plate, and the movable end of the electric push rod is fixed with the side portion of each sliding plate.

As a still further scheme of the invention: still fixed mounting has two risers on the bed board, two be fixed with the horizontal plate between the riser, elasticity drive mechanism installs including rotating two drive wheels, the connection of riser lateral part are two the connecting piece and the fixed setting of drive wheel are in cylinder on the connecting piece, install the third motor on the horizontal plate, the output shaft of third motor passes through bevel gear group with the rotation axis connection of drive wheel, the lateral part of bed board is fixed with two stands, two it is provided with the lifter plate to slide on the stand, just be provided with the spout on the lifter plate, the cylinder stretch into to in the spout and with lifter plate sliding connection.

As a still further scheme of the invention: the side part of the bed board is provided with a guide groove, a sliding block is embedded in the guide groove in a sliding mode, the sliding block is connected with the bearing plate through a second spring, a push-pull rod is connected between the lifting plate and the sliding block, and two ends of the push-pull rod are respectively connected with the sliding block and the lifting plate in a rotating mode.

Compared with the prior art, the invention has the beneficial effects that: the invention has novel design, after the drill bit contacts with the bone of a patient, the sleeve can slide on the rotating shaft along with the continuous descending of the transverse plate, correspondingly, the connecting plate drives the cylinder to slide upwards, the first spring is compressed to store certain elastic potential energy, medical staff observes the length of the cylinder extending out of the upper part of the transverse plate, after reaching the proper length, the thread lifting mechanism stops working, then the second motor starts to drive the rotating shaft to rotate, the rotating shaft drives the sleeve and the drill bit to rotate through the strip-shaped bulges on the periphery of the rotating shaft and the strip-shaped grooves on the inner wall of the sleeve, then, along with the rotation of the drill bit, the first spring gradually releases elastic potential energy, the drill bit slowly extends into the leg bone, and finally, the thread lifting mechanism works reversely again to drive the transverse plate to vertically lift and reset, so that the device has the depth-adjustable drilling function.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a screw-in drilling device for orthopedic surgery with a depth adjusting function.

Fig. 2 is a schematic structural view of another angle of one embodiment of the screw-in drilling device for orthopedic surgery with a depth adjusting function.

Fig. 3 is a schematic structural diagram of another angle of an embodiment of the screw drilling device for orthopedic surgery with a depth adjusting function.

Fig. 4 is an enlarged view of a structure at a in fig. 2.

Fig. 5 is an enlarged view of the structure at B in fig. 3.

Fig. 6 is an exploded view of the structure of an elastic traction mechanism in an embodiment of the screw-in type drilling apparatus for orthopedic surgery having a depth adjustment function.

Fig. 7 is a schematic view illustrating the disassembly of the spindle and the sleeve in an embodiment of the screw-in drilling device for orthopedic surgery with depth adjustment.

In the figure: 1. a bed board; 2. a bearing plate; 3. a limiting member; 4. a vertical plate; 5. a retractable plate; 6. a transverse plate; 7. a first motor; 8. a screw rod; 9. a threaded sleeve; 10. a second motor; 11. a rotating shaft; 12. a sleeve; 13. a drill bit; 14. connecting plates; 15. a cylinder; 16. a first spring; 17. a cross bar; 18. a sliding plate; 19. an electric push rod; 20. a vertical plate; 21. a horizontal plate; 22. a drive wheel; 23. a connecting member; 24. a cylinder; 25. a column; 26. a lifting plate; 27. a slider; 28. a push-pull rod; 29. a second spring; 30. a third motor; 31. a bevel gear set.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-7, in an embodiment of the present invention, a screw drilling device with depth adjustment function for orthopedic surgery is installed on a bed plate 1, and includes a horizontal plate 6 movably disposed on and parallel to the bed plate 1. The transverse plate 6 is connected with threaded lifting mechanisms respectively arranged on two sides of the bed plate 1, and the two groups of lifting mechanisms are connected with electric push-pull mechanisms which are arranged at the bottom of the bed plate 1;

the transverse plate 6 is provided with a drill bit 13 for drilling the leg bone of the patient through a power mechanism, and the power mechanism is connected with a depth display mechanism arranged on the transverse plate 6. Still the activity is provided with a bearing board 2 on the bed board 1, bearing board 2 is "U" shape setting, and demountable installation has one to carry out fixed locating part 3 owing to the ankle department to the patient on it, locating part 3 is the arc form setting, bearing board 2 is connected and is installed two sets of elastic traction mechanism on 1 tip of bed board.

It should be noted that, the limiting part 3 can be fixed on the supporting plate 2 through a bolt, when performing an operation, the ankle of the patient is placed on the supporting plate 2, and then, the medical staff is fixed on the supporting plate 2 through the bolt with the limiting part 3, thereby realizing the limiting function of the foot of the patient and ensuring the normal operation of the subsequent operation.

Referring to fig. 2 and 4 again, the power mechanism includes a second motor 10 installed on the transverse plate 6, a rotating shaft 11 rotatably installed on the transverse plate 6, and a sleeve 12 slidably sleeved on the rotating shaft 11 through a limiting structure, the rotating shaft 11 is connected with an output end of the second motor 10, and the drill bit 13 is fixedly installed at one end of the sleeve 12 far away from the transverse plate 6.

Referring to fig. 7 again, the limiting structure includes two strip-shaped protrusions fixedly disposed on the periphery of the rotating shaft 11 and two strip-shaped grooves disposed on the inner wall of the sleeve 12, and the strip-shaped grooves are in sliding fit with the strip-shaped protrusions.

Referring to fig. 4 and 7 again, the depth display mechanism includes two posts 15 slidably disposed on the horizontal plate 6, a connecting plate 14 fixedly mounted on the end portions of the two posts 15, and a first spring 16 sleeved on the outer periphery of the posts 15. The both ends of first spring 16 are connected respectively diaphragm 6 with even board 14, even board 14 with sleeve pipe 12 rotates and connects, just still be provided with the scale on the cylinder 15.

When the medical screw thread lifting mechanism is used, after the legs of a patient are fixed, the electric push-pull mechanism works to drive the transverse plate 6 to do linear motion along the length direction of the bed plate 1 until the drill bit 13 is moved to a proper drilling position, then the thread lifting mechanism works to drive the transverse plate 6 to move downwards in the vertical direction, after the drill bit 13 is contacted with the bone of the patient, the sleeve 12 slides on the rotating shaft 11 along with the continuous descending of the transverse plate 6, correspondingly, the connecting plate 14 drives the column body 15 to slide upwards, the first spring 16 is compressed to store certain elastic potential energy, medical staff observes the length of the column body 15 extending to the upper part of the transverse plate 6, after the proper length is reached, the thread lifting mechanism stops working, then, the second motor 10 starts to drive the rotating shaft 11 to rotate, the rotating shaft 11 drives the sleeve 12 and the drill bit 13 to rotate through the strip-shaped bulges on the periphery and the strip-shaped grooves on the inner wall of the sleeve 12, then, along with the rotation of the drill bit 13, the first spring 16 gradually releases the elastic potential energy, the drill bit 13 slowly extends into the leg bone until the column 15 is reset, the drilling is completed, and finally, the thread lifting mechanism works in the reverse direction again to drive the transverse plate 6 to vertically lift and reset.

Referring to fig. 2 again, the thread lifting mechanism includes a vertical plate 4 fixedly installed at a side portion of the bed plate 1 and a telescopic plate 5 slidably installed in the vertical plate 4, a screw rod 8 is rotatably installed on the vertical plate 4, a thread sleeve 9 in threaded connection with the screw rod 8 is arranged on the screw rod 8, a first motor 7 with an output end connected with the screw rod 8 is further installed on the vertical plate 4, and one end of the thread sleeve 9, which is far away from the bed plate 1, is fixed with the telescopic plate 5.

When the first motor 7 rotates, the screw rod 8 is driven to rotate, so that the threaded sleeve 9 is in threaded fit with the screw rod 8 to drive the expansion plate 5 to move towards the outside or the inside of the vertical plate 4, and correspondingly, the height of the transverse plate 6 is increased or decreased, so that the function of adjusting the height of the drill bit 13 is realized, and the final depth of the drill bit 13 extending into the leg of a patient is adjusted.

Referring to fig. 3 again, the electric push-pull mechanism includes two cross rods 17 fixedly installed at the bottom of the bed plate 1, a sliding plate 18 slidably installed on the two cross rods 17, and an electric push rod 19 installed at the bottom of the bed plate 1. The sliding plate 18 is fixed with the vertical plate 4, and the movable end of the electric push rod 19 is fixed with the side part of the sliding plate 18.

It should be noted that the electric push rod 19 can be replaced by an air cylinder or a hydraulic cylinder, which is not specifically limited in this application and can be selected according to actual requirements.

When the position of the drill hole needs to be adjusted, the electric push rod 19 works to drive the sliding plate 18 to slide on the two cross rods 17, so that the sliding plate 18 drives the transverse plate 6 to move in the horizontal direction through the vertical plate 4 and the telescopic plate 5, the horizontal position of the drill bit 13 is changed, and the adjustment of the drilling direction is realized.

Referring to fig. 1, 5 and 6 again, two vertical plates 20 are fixedly mounted on the bed plate 1, a horizontal plate 21 is fixed between the two vertical plates 20, the elastic traction mechanism includes two driving wheels 22 rotatably mounted on the lateral sides of the vertical plates 20, a connecting member 23 connecting the two driving wheels 22, and a cylinder 24 fixedly disposed on the connecting member 23, a third motor 30 is mounted on the horizontal plate 21, and an output shaft of the third motor 30 is connected with a rotating shaft of the driving wheels 22 through a bevel gear set 31. The lateral part of bed board 1 is fixed with two stands 25, two it is provided with lifter plate 26 to slide on the stand 25, just be provided with the spout on the lifter plate 26, cylinder 24 stretch into to in the spout and with lifter plate 26 sliding connection.

The bevel gear set 31 includes a first bevel gear fixedly mounted at the end of the output shaft of the third motor 30 and a second bevel gear fixedly mounted on the rotating shaft of the driving wheel 22, and the second bevel gear is engaged with the first bevel gear.

Preferably, the connecting member 23 is a chain to ensure the stability of the transmission fit between the components.

Referring to fig. 5 again, a guide groove is formed in the side portion of the bed plate 1, a sliding block 27 is slidably embedded in the guide groove, the sliding block 27 is connected with the supporting plate 2 through a second spring 29, a push-pull rod 28 is connected between the lifting plate 26 and the sliding block 27, and two ends of the push-pull rod 28 are rotatably connected with the sliding block 27 and the lifting plate 26 respectively.

After the leg of the patient is fixed, the third motor 30 works, the output of the third motor drives the driving wheel 22 to rotate through the bevel gear set 31, then the connecting piece 23 drives the lifting plate 26 to ascend or descend on the upright post 25 through the cylinder 24, the lifting plate 26 pulls the sliding block 27 to slide towards the direction far away from the supporting plate 2 through the push-pull rod 28 in the ascending process, the second spring 29 is stretched to store certain elastic potential energy, and then, the leg of the patient can be subjected to certain traction force at the moment, so that the leg of the patient is kept in a straight state in the operation process, and the normal operation of subsequent drilling is ensured.

The working principle of the invention is as follows: when an operation is performed, the ankle of a patient is placed on the supporting plate 2, and then the medical staff fixes the limiting piece 3 on the supporting plate 2 through the bolt, so that the limiting function of the foot of the patient is realized;

then, the third motor 30 works, the output of the third motor drives the driving wheel 22 to rotate through the bevel gear set 31, so that the connecting piece 23 drives the lifting plate 26 to ascend or descend on the upright post 25 through the cylinder 24, the lifting plate 26 pulls the sliding block 27 to slide towards the direction far away from the supporting plate 2 through the push-pull rod 28 in the ascending process, the second spring 29 is stretched to store certain elastic potential energy, and then the leg of the patient can be subjected to certain traction force at this time, so that the leg of the patient is kept in a straight state in the operation process, and the normal operation of subsequent drilling is ensured;

the electric push rod 19 works to drive the sliding plate 18 to slide on the two cross rods 17, so that the sliding plate 18 drives the transverse plate 6 to move in the horizontal direction through the vertical plate 4 and the telescopic plate 5, the horizontal position of the drill bit 13 is changed, and the adjustment of the drilling direction is realized;

when the first motor 7 rotates, the screw rod 8 is driven to rotate, then the threaded sleeve 9 is in threaded fit with the screw rod 8 to drive the expansion plate 5 to move towards the outside or the inside of the vertical plate 4, correspondingly, the height of the horizontal plate 6 is raised or lowered, after the drill bit 13 is in contact with the bone of a patient, along with the continuous lowering of the horizontal plate 6, the sleeve 12 slides on the rotating shaft 11, correspondingly, the connecting plate 14 drives the cylinder 15 to slide upwards, the first spring 16 is compressed and stores certain elastic potential energy, a medical worker observes the length of the cylinder 15 extending to the upper part of the horizontal plate 6, after reaching a proper length, the threaded lifting mechanism stops working, then, the second motor 10 starts to drive the rotating shaft 11 to rotate, the rotating shaft 11 drives the sleeve 12 and the drill bit 13 to rotate through the strip-shaped protrusions on the outer periphery of the rotating shaft 11 and the strip-shaped grooves on the inner wall of the sleeve 12, and then, along with the rotation of the drill bit 13, the first spring 16 gradually releases elastic potential energy, the drill bit 13 slowly extends into the leg bone until the column body 15 is reset, drilling is completed, and finally, the thread lifting mechanism works reversely again to drive the transverse plate 6 to vertically lift up and reset, so that the device has a drilling function with adjustable depth.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A screw-in drilling device with a depth adjusting function for orthopedic surgery is characterized by being arranged on a bed plate (1) and comprising a transverse plate (6) movably arranged on the bed plate (1) and parallel to the bed plate;

the transverse plate (6) is connected with threaded lifting mechanisms respectively arranged on two sides of the bed plate (1), the two groups of lifting mechanisms are connected with electric push-pull mechanisms, and the electric push-pull mechanisms are arranged at the bottom of the bed plate (1);

the transverse plate (6) is provided with a drill bit (13) for drilling the leg bone of the patient through a power mechanism, and the power mechanism is connected with a depth display mechanism arranged on the transverse plate (6);

still the activity is provided with a bearing board (2) on bed board (1), bearing board (2) are "U" shape setting, and demountable installation has one to carry out fixed locating part (3) owing to department to patient's ankle on it, locating part (3) are the arc form setting, bearing board (2) connect to be installed two sets of elasticity drive mechanism on bed board (1) tip.

2. The precession type drilling device with depth adjustment function for orthopedic surgery according to claim 1, wherein the power mechanism comprises a second motor (10) installed on the horizontal plate (6), a rotating shaft (11) rotatably installed on the horizontal plate (6), and a sleeve (12) slidably sleeved on the rotating shaft (11) through a limiting structure, the rotating shaft (11) is connected with the output end of the second motor (10), and the drill bit (13) is fixedly installed at one end of the sleeve (12) far away from the horizontal plate (6).

3. The precession type drilling device with depth adjustment function for orthopedic surgery according to claim 2, wherein the limiting structure comprises two strip-shaped protrusions fixedly arranged on the periphery of the rotating shaft (11) and two strip-shaped grooves arranged on the inner wall of the casing (12), and the strip-shaped grooves are in sliding fit with the strip-shaped protrusions.

4. The precession drilling device with depth adjustment function for orthopedic surgery according to claim 2, characterized in that the depth display mechanism comprises two cylinders (15) slidably disposed on the cross plate (6), a connecting plate (14) fixedly mounted on the end of the two cylinders (15), and a first spring (16) sleeved on the outer circumference of the cylinders (15);

the two ends of the first spring (16) are respectively connected with the transverse plate (6) and the connecting plate (14), the connecting plate (14) is rotatably connected with the sleeve (12), and scales are further arranged on the cylinder (15).

5. The precession type drilling device with depth adjustment function for orthopedic surgery according to claim 1, wherein the threaded lifting mechanism comprises a vertical plate (4) fixedly installed at the side of the bed plate (1) and a telescopic plate (5) slidably disposed in the vertical plate (4), a lead screw (8) is rotatably installed on the vertical plate (4), a threaded sleeve (9) in threaded connection with the lead screw is arranged on the lead screw (8), a first motor (7) with an output end connected with the lead screw (8) is further installed on the vertical plate (4), and one end of the threaded sleeve (9) far away from the bed plate (1) is fixed with the telescopic plate (5).

6. The precession drilling device with depth adjustment function for orthopedic surgery according to claim 5, wherein the electric push-pull mechanism comprises two cross rods (17) fixedly installed at the bottom of the bed plate (1), a sliding plate (18) slidably installed on the two cross rods (17), and an electric push rod (19) installed at the bottom of the bed plate (1);

the sliding plate (18) is fixed with the vertical plate (4), and the movable end of the electric push rod (19) is fixed with the side part of the sliding plate (18).

7. The precession type drilling device with depth adjustment function for orthopedic surgery according to claim 1, characterized in that two risers (20) are further fixedly installed on the bed plate (1), a horizontal plate (21) is fixed between the two risers (20), the elastic traction mechanism comprises two driving wheels (22) rotatably installed at the side portions of the risers (20), a connecting member (23) connecting the two driving wheels (22), and a cylinder (24) fixedly arranged on the connecting member (23), a third motor (30) is installed on the horizontal plate (21), and an output shaft of the third motor (30) is connected with a rotating shaft of the driving wheels (22) through a bevel gear set (31);

the lateral part of bed board (1) is fixed with two stands (25), two it is provided with lifter plate (26) to slide on stand (25), just be provided with the spout on lifter plate (26), cylinder (24) stretch into extremely in the spout and with lifter plate (26) sliding connection.

8. The precession type drilling device with depth adjustment function for orthopedic surgery according to claim 7, characterized in that a guiding groove is opened at the side of the bed plate (1), a sliding block (27) is slidably embedded in the guiding groove, the sliding block (27) is connected with the supporting plate (2) through a second spring (29), a push-pull rod (28) is connected between the lifting plate (26) and the sliding block (27), and two ends of the push-pull rod (28) are respectively rotatably connected with the sliding block (27) and the lifting plate (26).