CN108742772B

CN108742772B - Orthopedics drilling positioner

Info

Publication number: CN108742772B
Application number: CN201810689434.5A
Authority: CN
Inventors: 段培君; 史凯; 马楠
Original assignee: Individual
Current assignee: Duan Peijun
Priority date: 2018-06-28
Filing date: 2018-06-28
Publication date: 2021-01-15
Anticipated expiration: 2038-06-28
Also published as: CN108742772A; CN112451041A

Abstract

The invention provides an orthopedic drilling positioning device which comprises two fixed clamping plate mechanisms, positioning mechanisms, connecting rods and two-way screws, wherein the two fixed clamping plate mechanisms are oppositely arranged, two ends of the two connecting rods are respectively and movably arranged on the two fixed clamping plate mechanisms, the positioning mechanisms are movably arranged on the two connecting rods, two ends of the two-way screws are respectively connected with the two fixed clamping plate mechanisms, and the rotating directions of threads at two ends of the two-way screws are opposite. According to the invention, the positioning mechanism can move back and forth on the connecting rod and can move along the annular guide groove in the upper clamping plate by virtue of the connecting rod, so that the position of the positioning mechanism can be freely adjusted, the condition that the positioning mechanism cannot move to the position to be drilled when drilling is required at different positions is avoided, the distance between the two fixed clamping plate mechanisms can be easily adjusted by pushing the distance between the two fixed clamping plate mechanisms through the two-way screw rod, and the adjustment range of the drilling position is further enlarged by movably installing the positioning ring.

Description

Orthopedics drilling positioner

Technical Field

The invention relates to the technical field of medical instruments, in particular to an orthopedic drilling positioning device.

Background

Orthopedics is one of the most common departments of various hospitals, orthopedics wound caused by the increase of the number of traffic accidents is obviously increased, when arms or legs of a human body are injured, steel nails need to be fixed through drilling, the existing orthopedics drill adopts a motor-driven hole digger, the verticality needs to be manually mastered during drilling, and the existing orthopedics drill is easy to shake during drilling, so that the drilling precision is low, the operation is unsafe and reliable, time and labor are wasted, the whole operation time is prolonged, even the accident of injury caused by the drilling of a broken bone head or the wrong position of the drill is avoided, the operation time is prolonged, and the labor intensity of medical workers is increased, so that the development of the orthopedics drill positioning device is very important.

The utility model provides a CN204600594U discloses an orthopedics drilling equipment includes, a pedestal, the lead screw, the carousel, smooth rod, left sleeve, a supporting plate, right sleeve, including a motor, an end cap, a controller, and a cover plate, the drill bit, the stop collar, the arc recess, left side couple, right side couple, the bandage, lead screw of the vertical installation of bearing is passed through in the left side of base upper surface, smooth rod of the vertical welding in right side of base upper surface, left side sleeve passes through threaded connection's mode and installs on the lead screw, backup pad of left side sleeve upper level welding, right sleeve of right-hand member welding of backup pad, right side muffjoint is on smooth rod, the motor passes through the bolt and installs on the lower surface of backup pad, a. When the drill bit drills the bone, the device can only move in the vertical direction, so that before drilling, medical staff are required to align the position, needing drilling, of a patient to be operated with the drill bit, and further the workload of the medical staff is increased.

The utility model provides an orthopedics drilling fixing device that publication number is CN107049414A, including upper fixed ring and lower fixed ring, upper fixed ring and lower fixed ring are the semicircle ring shape, and upper fixed ring and lower fixed ring's quantity is two and their axis coincidence, and upper fixed ring and lower fixed ring's border department is provided with the lug, is provided with the through-hole on the lug, and upper fixed ring and lower fixed ring are through setting up the screwed connection in the through-hole, and the outside cover of screw is equipped with the nut. This device can be with drilling sighting device along connecting rod lateral motion for the position of drilling can change, and can adjust the distance between solid fixed ring and the solid fixed ring down and then can fix the patient of arm or shank thickness difference. However, the drilling and aiming device in the invention can only move transversely along the connecting rod, the position of the connecting rod is fixed, so that the movable position of the drilling and aiming device is very limited, and the device can only adjust the distance between the upper fixing ring and the lower fixing ring by using the movement of the upper fixing ring and the lower fixing ring because the legs and the arms have different thicknesses from top to bottom, so that the legs or the arms with different thicknesses from top to bottom cannot be fixed, and the situation that the legs or the arms cannot be stably positioned easily occurs in the process of surgery, and when the distance between the upper fixing ring and the lower fixing ring which are oppositely arranged is changed, a plurality of fastening bolts need to be loosened and then the distance between the fastening bolts needs to be adjusted.

Disclosure of Invention

The present invention is directed to an orthopedic drilling positioning device to solve the above problems.

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

the utility model provides an orthopedics drilling positioner, includes solid fixed splint mechanism, positioning mechanism, connecting rod and two-way screw rod, two gu the opposite installation of fixed splint mechanism, wherein:

the positioning mechanism comprises a supporting plate, a hinge, a clamping sleeve, a friction rubber sleeve, a positioning ring, a fastening bolt I and a fastening bolt II, one end of the supporting plate is movably arranged on one connecting rod, the other end of the supporting plate is erected on the other connecting rod, the clamping sleeve is rotatably arranged on the supporting plate through the hinge, the friction rubber sleeve is connected to the clamping sleeve in a gluing mode, the positioning ring is movably arranged in the supporting plate, the two fastening bolts I penetrate through the positioning ring and are in contact with the supporting plate, and one end, provided with threads, of the fastening bolt II penetrates through the hinge and extends into the supporting plate;

two ends of the two connecting rods are respectively and movably arranged on the two fixed clamping plate mechanisms;

two ends of the two-way screw rods are respectively connected with the two fixed clamping plate mechanisms, and the rotating directions of the threads at the two ends of the two-way screw rods are opposite.

Preferably, the solid fixed splint mechanism includes lower plate, punch holder, stay bolt, plum blossom nut, supporting spring and clamp plate, be equipped with two connecting rods on the lower plate, be equipped with annular guide slot on the punch holder, lower plate and punch holder pass through two the connection of long bolt, the position that the stay bolt runs through lower plate and punch holder overlaps respectively and establishes a supporting spring, plum blossom nut installs on the stay bolt, clamp plate movable mounting is in the punch holder, and the clamp plate passes through hexagon nut fixed, two in the annular guide slot of the both ends difference movable fit in the punch holder that the opposition was laid, wherein two the both ends of connecting rod are overlapped respectively and are equipped with a nut, two in the connecting rod of the both ends of two-way screw rod closure soon respectively on the punch holder that the opposition was laid.

Preferably, the connecting rod is internally provided with connecting threads, wherein the threads in the connecting rods which are oppositely arranged are opposite in rotation direction.

Preferably, the one end of backup pad is equipped with a round hole, the other end is equipped with a semicircle hole, round hole and one of them connecting rod clearance fit in the backup pad, splice a friction gum cover on the semicircle hole, splice the semicircle hole that has the friction gum cover and set up on another connecting rod, the backup pad middle part is equipped with the U-shaped groove to and the inside in U-shaped groove is equipped with the guide rail.

Preferably, the positioning ring is provided with a guide block, and the guide block on the positioning ring is matched in the guide rail.

Preferably, the clamping sleeve is fixedly installed at one end of the hinge through a bolt, and the other end of the hinge is fixedly installed on the supporting plate through a bolt.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention can move back and forth on the connecting rod through the positioning mechanism and can move along the annular guide groove in the upper clamping plate by means of the connecting rod, so that the position of the positioning mechanism can be freely adjusted, the condition that the positioning mechanism cannot move to the position to be drilled when the drilling is required at different positions is avoided,

2. the distance between the two fixed clamping plate mechanisms can be rapidly adjusted by pushing the distance between the two fixed clamping plate mechanisms through the two-way screw.

3. The invention further increases the adjusting range of the drilling position by movably mounting the positioning ring.

4. According to the invention, the pressing plate is arranged on the upper clamping plate, so that the leg or the arm can be freely stretched and contracted when being fixed, and the leg or the arm can be tightly pressed.

Drawings

FIG. 1 is a three-dimensional schematic view of the overall structure of the present invention;

FIG. 2 is a three-dimensional schematic view of a positioning mechanism according to the present invention;

FIG. 3 is a three-dimensional schematic view of a retaining ring according to the present invention;

FIG. 4 is a three-dimensional schematic view of a bi-directional screw of the present invention.

In the figure: the device comprises a fixed clamping plate mechanism 1, a lower clamping plate 11, an upper clamping plate 12, a long bolt 13, a plum blossom nut 14, a support spring 15, a pressing plate 16, a connecting rod 111, an annular guide groove 121, a positioning mechanism 2, a support plate 21, a hinge 22, a clamping sleeve 23, a friction rubber sleeve 24, a positioning ring 25, a fastening bolt I26, a fastening bolt II 27, a round hole 211, a semicircular hole 212, a U-shaped groove 213, a guide rail 214, a guide block 251, a connecting rod 3 and a bidirectional screw rod 4.

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.

Example (b):

referring to fig. 1 to 4, the present invention provides a technical solution:

the utility model provides an orthopedics drilling positioner, includes solid fixed splint mechanism 1, positioning mechanism 2, connecting rod 3 and two-way screw rod 4, and two solid fixed splint mechanisms 1 are to the installation of standing, wherein:

the fixed splint mechanism 1 comprises a lower splint 11, an upper splint 12, long bolts 13, plum blossom nuts 14, supporting springs 15 and a pressing plate 16, wherein two connecting rods 111 are arranged on the lower splint 11, connecting threads are arranged in the connecting rods 111, the screwing directions of the threads in the oppositely arranged connecting rods 111 are opposite, an annular guide groove 121 is arranged on the upper splint 12, the lower splint 11 is connected with the upper splint 12 through the two long bolts 13, the positions of the long bolts 13 penetrating through the lower splint 11 and the upper splint 12 are respectively sleeved with the supporting springs 15, then the two ends of the supporting springs 15 are respectively contacted with the lower splint 11 and the upper splint 12, the plum blossom nuts 14 are arranged at the upper end of the long bolts 13, the lower end of the long bolts 13 is embedded in the lower splint 11, the pressing plate 16 is movably arranged in the upper splint 12, the upper end of the pressing plate 16 is provided with a threaded rod, wherein the pressing plate 16 is fixed through hexagonal nuts, the two ends of the two connecting rods 3, and then the connecting rods 3 can move in the annular guide grooves 121, wherein two ends of the two connecting rods 3 are respectively sleeved with a nut, two ends of the two-way screws 4 are respectively screwed in the connecting rods 111 on the lower clamping plates 11 which are oppositely arranged, and the screw threads at two ends of the two-way screws 4 are opposite in screwing direction and are matched with the screw threads in the corresponding connecting rods 111 to form threaded connection.

The positioning mechanism 2 comprises a support plate 21, a hinge 22, a cutting sleeve 23, a friction rubber sleeve 24, a positioning ring 25, a fastening bolt I26 and a fastening bolt II 27, one end of the support plate 21 is provided with a round hole 211, the other end of the support plate is provided with a semicircular hole 212, the friction rubber sleeve 24 is glued and connected to the semicircular hole 212, the round hole 211 in the support plate 21 is movably matched with one of the connecting rods 3, the support plate 21 is movably arranged on the connecting rod 3, the semicircular hole 212 which is glued and connected with the friction rubber sleeve 24 is erected on the other connecting rod 3, the cutting sleeve 23 is fixedly arranged at one end of the hinge 22 through a bolt, the other end of the hinge 22 is fixedly arranged on the support plate 21 through a bolt, the cutting sleeve 23 is rotatably arranged on the support plate 21 through the hinge 22, the friction rubber sleeve 24 is glued and connected to the cutting sleeve 23, when the hinge 22 is in a flat state, the friction rubber sleeve, the middle part of the support plate 21 is provided with a U-shaped groove 213, a guide rail 214 is arranged inside the U-shaped groove 213, a guide block 251 is arranged on the positioning ring 25, the guide block 251 on the positioning ring 25 is matched in the guide rail 214, the positioning ring 25 is movably arranged in the U-shaped groove 213, two fastening bolts I26 penetrate through the positioning ring 25 and are contacted with the support plate 21, a threaded connection is formed between the fastening bolts I26 and the positioning ring 25, one end with threads of a fastening bolt II 27 penetrates through the hinge 22 and extends into the support plate 21, and the part of the fastening bolt II 27 extending into the support plate 21 is provided with threads so that the fastening bolt II 27 is in threaded connection with the support plate 21;

the working principle of the invention is as follows: when the device is placed on the arm or leg of a patient to be operated, firstly, nuts sleeved at two ends of two connecting rods 3 are loosened, then two-way screws 4 are screwed, the two-way screws 4 push away or pull close the oppositely placed lower clamping plates 11 under the action of threads in connecting rods 111 matched with the two-way screws 4 in the process of screwing the two-way screws 4, so that the distance between the oppositely placed lower clamping plates 11 is adjusted, after the distance between the oppositely placed lower clamping plates 11 is adjusted, the nuts at two ends of the two connecting rods 3 are screwed, further, the distance between the oppositely placed lower clamping plates 11 is fixed under the tightening action of the two connecting rods 3 and the jacking action of the two-way screws 4, then the device is placed on the arm or leg, at the moment, the lower clamping plates 11 are directly contacted with the leg or arm, then the plum blossom nut 14 is screwed, and the upper clamping plate 12 moves towards the approaching direction under the action of the compression of the plum blossom nut 14, the plum blossom nut 14 is stopped to be screwed after the lower clamping plate 11 and the upper clamping plate 12 fix the arm or the leg, at the moment, one end of the arm or the leg is fixed by the lower clamping plate 11 and the upper clamping plate 12, because the arm or the leg is different in thickness from top to bottom, the hexagonal nut on the pressing plate 16 is screwed at the unfixed end, the arm or the leg is pressed tightly by the pressing plate 16, at the moment, the arm or the leg is completely fixed, then the fastening bolt II 27 is unscrewed, the fastening bolt II 27 is separated from the supporting plate 21, at the moment, the hinge 22 drives the clamping sleeve 23 to be far away from the supporting plate 21, the supporting plate 21 can be put on one end of the connecting rod 3 to be separated, then the nuts at the two ends of the two connecting rods 3 are loosened, at the moment, the positions of the two connecting rods 3 are adjusted, the supporting plate 21 is rotated to be near the position to, and then the position of the supporting plate 21 is fixed under the action of friction force generated by the friction rubber sleeve 24, nuts at two ends of the two connecting rods 3 are screwed, when fine adjustment is needed between the positioning ring 25 and a drilled hole after the position is determined, the fastening bolt I26 is unscrewed, then the positioning ring 25 is moved to enable the positioning ring 25 to be aligned with the drilled hole, the fastening bolt I26 is screwed after the alignment, the drill bit enters the positioning ring 25 to be drilled, and after the drilling is completed, the device can be taken out from the arm or the leg of a patient.

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

Claims

1. The utility model provides an orthopedics drilling positioner, includes solid fixed splint mechanism (1), positioning mechanism (2), connecting rod (3) and two-way screw rod (4), two gu fixed splint mechanism (1) is the installation of opposition, its characterized in that:

the positioning mechanism (2) comprises a supporting plate (21), a hinge (22), a clamping sleeve (23), a friction rubber sleeve (24), a positioning ring (25), a fastening bolt I (26) and a fastening bolt II (27), one end of the supporting plate (21) is movably arranged on the connecting rod (3), the other end of the supporting plate is arranged on the other connecting rod (3), the clamping sleeve (23) is rotatably arranged on the supporting plate (21) through the hinge (22), the friction rubber sleeve (24) is glued on the clamping sleeve (23), the positioning ring (25) is movably arranged in the supporting plate (21), the two fastening bolts I (26) penetrate through the positioning ring (25) and are in contact with the supporting plate (21), and one end, provided with threads, of the fastening bolt II (27) penetrates through the hinge (22) and extends into the supporting plate (21);

two ends of the two connecting rods (3) are respectively and movably arranged on the two fixed splint mechanisms (1);

two ends of the two-way screw rods (4) are respectively connected with the two fixed splint mechanisms (1), wherein the thread directions of the two ends of the two-way screw rods (4) are opposite;

the utility model discloses a clamp plate, including solid fixed splint mechanism (1) including lower plate (11), punch holder (12), stay bolt (13), plum blossom nut (14), supporting spring (15) and clamp plate (16), be equipped with two connecting rods (111) on lower plate (11), be equipped with annular guide slot (121) on punch holder (12), lower plate (11) and punch holder (12) are through two stay bolt (13) are connected, and stay bolt (13) run through the position of punch holder (11) and punch holder (12) and overlap respectively and establish a supporting spring (15), plum blossom nut (14) are installed on stay bolt (13), clamp plate (16) movable mounting is in punch holder (12), and clamp plate (16) are fixed through hexagon nut, two the both ends of connecting rod (3) are movable fit respectively in annular guide slot (121) in punch holder (12) that the opposition was laid, wherein two the both ends of connecting rod (3) are overlapped respectively and are equipped with a nut, two ends of the two-way screw rods (4) are respectively screwed in the connecting rods (111) on the lower clamping plates (11) which are oppositely arranged.

2. An orthopedic drill positioning device as defined in claim 1, wherein: the connecting rod (111) is internally provided with connecting threads, wherein the threads in the connecting rods (111) which are oppositely arranged have opposite rotating directions.

3. An orthopedic drill positioning device as defined in claim 1, wherein: one end of backup pad (21) is equipped with a round hole (211), the other end is equipped with a semicircle orifice (212), round hole (211) in backup pad (21) and one of them connecting rod (3) clearance fit, splice a friction gum cover (24) on semicircle orifice (212), splice semicircle orifice (212) that have friction gum cover (24) and set up on another connecting rod (3), the middle part of backup pad (21) is equipped with U-shaped groove (213) to and the inside in U-shaped groove (213) is equipped with guide rail (214).

4. An orthopedic drill positioning device as defined in claim 1, wherein: the positioning ring (25) is provided with a guide block (251), and the guide block (251) on the positioning ring (25) is matched in the guide rail (214).

5. An orthopedic drill positioning device as defined in claim 1, wherein: the clamping sleeve (23) is fixedly arranged at one end of the hinge (22) through a bolt, and the other end of the hinge (22) is fixedly arranged on the supporting plate (21) through a bolt.