CN110613508A - Universal screwdriver with track scissors - Google Patents

Abstract

The invention relates to a universal screwdriver with track scissors, which comprises a universal screwdriver, track scissors arranged outside the universal screwdriver and a rotating part arranged on the universal screwdriver, wherein the universal screwdriver comprises a handle, a taper sleeve fixedly connected at one end of the handle and a universal hose inserted into the taper sleeve, a straight rail is arranged at one end of the track scissors and is sleeved outside the taper sleeve, a taper head is fixedly connected at one end of the universal hose far away from the handle, a bent rail is fixedly connected at one end of the straight rail close to the taper head, and the universal hose is inserted into the bent rail so that the axis of the taper head is not superposed with the axis of the taper sleeve.

Description

Universal screwdriver with track scissors

Technical Field

The invention relates to the technical field of medical instruments, in particular to a universal screwdriver with a track shear.

Background

In the orthopedic surgery, the operated area can not be completely exposed due to deep level of bones such as mandible or hip joint of human body, complex structure, abundant blood vessels of surrounding tissues and the like, so as to avoid excessive damage; the screws of deep bones are often difficult to install due to narrow space, common biological screw installation tools are similar to common screwdrivers, the taper shanks of the common screwdrivers are long and straight, and the screws are difficult to extend into the regions in the operable range to be contacted with the screws, so that the biological screw installation tools have great limitation in the field of medical treatment.

The utility model with the publication number of CN205359615U discloses a universal screwdriver, which comprises a movable handle, a universal joint shaft and a universal ball head, wherein the universal joint head and the screwdriver head are connected through the universal ball head, so that the universal joint head, the universal ball head and the screwdriver head form a universal joint structure to realize the multi-angle change of the screwdriver head, and the screwdriver head can be conveniently stretched into a narrow area to take out or install bone screws; however, the screwdriver head is too flexible, so that the screwdriver head is not easy to control during twisting, the moving range of the universal ball head is large during screwing the screw, and the screwdriver head is easy to contact with the affected part or the blood vessel of a patient and is dangerous.

Disclosure of Invention

The invention aims to solve the technical problem of providing a universal screwdriver with a track shear, aiming at the defects in the prior art.

In order to solve the technical problem, the invention provides a universal screwdriver with track scissors, which comprises a universal screwdriver, the track scissors arranged outside the universal screwdriver and a rotating part arranged on the universal screwdriver, wherein the universal screwdriver comprises a handle, a taper sleeve fixedly connected to one end of the handle and a universal hose inserted into the taper sleeve, a straight rail is arranged at one end of the track scissors and is sleeved outside the taper sleeve, a taper head is fixedly connected to one end, far away from the handle, of the universal hose, a bent rail is fixedly connected to one end, close to the taper head, of the straight rail, and the universal hose is inserted into the bent rail so that the axis of the taper head is not coincident with the axis of the taper sleeve.

By adopting the technical scheme and adopting the common universal hose on the market, the screwdriver head can rotate in multiple angles and multiple directions, so that the screwdriver head can be adapted to operating environments with different sizes, the rotating range is always kept in the section range of the universal hose, and compared with the more abrupt rotating range of the universal joint, the probability of the contact between the screwdriver and the body of a patient is reduced, and the occurrence of medical accidents is effectively reduced; and through the track scissors that set up to have the curved rail, the swing of effectual restriction conical head makes the conical head can only rotate in a direction, guarantees can be stable with the bone screw installation or take out the skeleton in, simultaneously on the mounting means, also only need can realize opening or merging of curved rail through opening or merging the track scissors, easy operation is convenient, simple structure, the practicality is strong.

As a further description of the present invention, preferably, a conical seat is erected between the universal hose and the conical head, the universal hose is fixedly connected with the conical seat, the conical head is inserted into the conical seat, and the outer diameter of the conical seat is greater than the outer diameter of the curved rail.

Through adopting above-mentioned technical scheme, set up the awl seat and avoid the conical head to move along the axis direction of conical head, guarantee that the screwdriver can be with the stable output of axial force to bone screw department to the installation bone screw.

As a further explanation of the present invention, preferably, a clamping block is fixedly connected in one end of the curved rail close to the conical seat, a semispherical groove is formed in the clamping block, the universal hose is embedded in the groove, and the groove opening is 0.5 mm-2 mm larger than the outer diameter of the universal hose.

Through adopting above-mentioned technical scheme, set up the orientation of deflecting that the clamp splice can further stabilize universal hose, and set up 0.5mm ~ 2 mm's interval, make universal hose can imbed in the clamp splice and can not harm universal hose, also can guarantee the stability of conical head rotation direction simultaneously.

As a further description of the present invention, preferably, a groove is formed at one end of the clamping block close to the conical seat, the groove is in a shape of a semicircular frustum, and the end with the larger caliber of the groove faces the conical seat.

By adopting the technical scheme, the contact area between the conical seat and the clamping block is reduced, so that the conical seat is easier to rotate.

As a further description of the present invention, it is preferable that a curved rod is fixedly connected between the track scissors and the straight rail, so that the length direction of the track scissors is not the same as the length direction of the straight rail.

Through adopting above-mentioned technical scheme for the track is cut and is not contacted with universal screwdriver, and convenient part operation avoids mutual interference.

As a further illustration of the present invention, the bending angle of the bending rod is preferably in the range of 120 ° to 160 °.

By adopting the technical scheme, a doctor can hold the track scissors and the handle simultaneously by one hand, so that the follow-up doctor can rotate the rotating part by the other hand, the single-person simultaneous control of a plurality of groups of instruments is realized, the workload of other doctors is reduced, and the large workload can not be provided for the operating doctor.

As a further description of the present invention, preferably, one end of the universal hose extending into the handle is fixedly connected with a connecting block, a connecting groove is formed in the middle of the connecting block, and the rotating member is inserted into the connecting groove to drive the steel rope in the universal hose to rotate.

Through adopting above-mentioned technical scheme, set up the spread groove and can make the rotating part connect on the connecting block, and then can make universal hose rotate through drive rotating part.

As a further explanation of the invention, it is preferred that the turning means is a knob or a motor, wherein the outer diameter of the knob is larger than the outer diameter of the handle, and the knob does not contact the track shears.

By adopting the technical scheme, the knob can be manually rotated, so that the screw can be suitable for the bone screws with shorter lengths, the feeding amount or the rotating amount of the bone screws can be freely controlled, and secondary injury to patients at higher speed is avoided; the motor is arranged, so that the screw can be automatically rotated, the screw is suitable for the bone screws with longer lengths, the time is saved, and the workload of doctors is reduced.

As a further explanation of the present invention, preferably, the middle portion of the connecting groove is circular hole-shaped, one side of the circular hole is provided with a square hole, the bottom of the knob is provided with a boss having the same shape as the connecting groove, the boss or the motor shaft is embedded in the connecting groove, and the knob and the connecting block are both magnetic.

Through adopting above-mentioned technical scheme, make the connecting block can install the knob and can also install the motor, kill two birds with one stone, enable knob and motor absorption simultaneously on the connecting block, avoid knob and motor to drop.

As a further description of the present invention, it is preferable that the top surface of the handle at both sides of the connecting block is provided with a square fixing groove, and when the rotating member is a motor, a motor base installed on the motor is embedded in the fixing groove to fix the position of the motor.

Through adopting above-mentioned technical scheme, set up the rotation of fixed slot restriction motor body, avoid the motor shaft to rotate and export the motor body with the moment of torsion, make motor body rotate, guarantee that the motor can export the moment of torsion to conical head department steadily.

The implementation of the invention has the following beneficial effects:

1. according to the invention, by arranging the universal screwdriver with the universal hose and the track shear with the curved rail, the changeability of the position and the rotating direction of the conical head can be realized, the rotating direction of the conical head can be fixed after the position of the conical head is selected, and the bone screw can be stably screwed in or out of the bone;

2. the direction of the conical head is further stabilized by arranging the clamping block, and the universal hose is not damaged;

3. through setting up multiple rotating parts, the suitability that has the different kinds of bone screw of adaptation and different operational environment improves universal screwdriver and track and cuts.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is an enlarged view of A in FIG. 4;

FIG. 6 is an enlarged view of B in FIG. 4;

FIG. 7 is an enlarged view of C in FIG. 4;

fig. 8 is a view showing the structure of the handle of the present invention.

Description of reference numerals:

1. a universal screwdriver; 11. a handle; 12. a taper sleeve; 13. a universal hose; 14. a conical seat; 15. a conical head; 16. connecting blocks; 17. connecting grooves; 18. fixing grooves; 2. shearing a track; 21. bending a rod; 22. a straight rail; 23. bending the rail; 24. a clamping block; 25. a groove; 3. and rotating the component.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

A universal screwdriver with track scissors, combine fig. 1, fig. 2, including universal screwdriver 1, erect track scissors 2 outside universal screwdriver 1 and erect rotating part 3 on universal screwdriver 1, combine fig. 4, universal screwdriver 1 includes the hand grip 11, the taper sleeve 12 that links firmly in one end of the hand grip 11 and insert the universal hose 13 in the taper sleeve 12, the hand grip 11 is an ellipsoid column, facilitate holding; taper sleeve 12 is the metal pipe, and universal hose 13 is common universal hose, and its inside is equipped with the steel cable of constituteing by the mutual steel wire of interweaving of multilayer, and universal hose 13 keeps away from handle 11 one end and has linked firmly awl seat 14, and it has conical head 15 to peg graft on the awl seat 14, and awl seat 14 is equipped with the magnetic sheet with conical head 15 department of meeting, and through the mode of pegging graft, removable different kinds of conical head 15 to adapt to different bone screws, set up the magnetic sheet and enable conical seat 14 adsorption column conical head 15, guarantee that conical head 15 is fixed stable.

With reference to fig. 1 and 3, the track shears 2 are in a scissor shape, the scissor ends of the track shears 2 are fixedly connected with the bent rods 21, and the bending angle range of the bent rods 21 is 120-160 degrees, i.e. a plurality of groups of track shears 2 with the bent rods 21 with different angles are arranged, so that the track shears are convenient to replace according to actual conditions; the end of the curved rod 21, which is far away from the track shears 2, is fixedly connected with a straight rail 22, the straight rail 22 is a semicircular pipe, and with reference to fig. 5, the straight rail 22 is sleeved outside the taper sleeve 12, the end of the straight rail 12, which is near to the taper head 15, is fixedly connected with a curved rail 23, the curved rail 23 is also a semicircular pipe, the length of the curved rail 23 is smaller than that of the straight rail 22, the length direction of the curved rail 23 is different from that of the straight rail 22, and the included angle between the curved rail 23 and the straight rail 22 is also different according to; the universal hose 13 is inserted into the curved rail 23, the conical seat 14 and the conical head 15 extend out of the curved rail 23, the outer diameter of the conical seat 14 is larger than that of the curved rail 23, the conical seat 14 is arranged to prevent the conical head 15 from moving along the axial direction of the conical head 15, and the screwdriver is guaranteed to be capable of outputting axial force stably to the bone screw so as to install the bone screw.

With reference to fig. 1, 3 and 4, when a bone screw needs to be installed or removed, the universal hose 13 is broken off according to the installation position of the bone screw and the surrounding environment to change the position of the conical head 15, the angle between the conical head 15 and the conical sleeve 12 is measured, then the track shears 2 with the straight rails 22 and the curved rails 23 with corresponding included angles are removed, the conical sleeve 12 and the universal hose 13 are coated, the rotating part 3 is twisted at the same time, the conical head 15 is rotated by the rotating part 3, and the installation and removal of the bone screw are realized through the contact between the conical head 15 and the bone screw; the bent rod 21 bent at an angle of 120-160 degrees is arranged, so that the track scissors are not contacted with a universal screwdriver, the track scissors are convenient to separate and operate, the mutual interference is avoided, a doctor can hold the track scissors 2 and the handle 11 simultaneously with one hand, the follow-up doctor can conveniently rotate the rotating part 3 with the other hand, the single-person simultaneous control of a plurality of groups of instruments is realized, the workload of other doctors is reduced, and the large workload can not be provided for the doctor who performs the operation; and when the operation (such as joint replacement step) is carried out, the screw can be screwed into the preset position quickly, the operation time is saved by at least 5-10 minutes, the operation time is effectively shortened, and more safe time can be won for patients.

With reference to fig. 4 and 6, a clamping block 24 is fixedly connected in one end of the curved rail 23 close to the conical seat 14, a semispherical groove is formed in the clamping block 24, the universal hose 13 is embedded in the groove, the diameter of the groove opening is 0.5 mm-2 mm larger than the outer diameter of the universal hose, the clamping block 24 is arranged to further stabilize the deflection direction of the universal hose 13, and the distance between the universal hose and the clamping block is 0.5 mm-2 mm, so that the universal hose 13 can be embedded in the clamping block 24 and cannot be damaged to the universal hose 13, and the stability of the rotation direction of the conical head 15 can be ensured; one end of the clamping block 24, which is close to the conical seat 14, is provided with a groove 25, the groove 25 is in a semicircular table shape, and the end with the large caliber of the groove 25 faces the conical seat, so that the contact area between the conical seat 14 and the clamping block 24 is reduced, and the conical seat 14 is easier to rotate.

Referring to fig. 4 and 7, one end of the universal hose 13 extending into the handle 11 is fixedly connected with a connecting block 16, the middle part of the connecting block 16 is provided with a connecting groove 17, the rotating part 3 is a knob or a motor, wherein the outer diameter of the knob is larger than that of the handle, the knob is not in contact with the track shears 2, the rotating part 3 is inserted into the connecting groove 17 to drive a steel rope in the universal hose 13 to rotate, the connecting groove 17 is arranged to enable the rotating part 3 to be connected to the connecting block 16, and further the universal hose 13 can be driven to rotate by driving the rotating part 3; the knob is arranged to be manually rotated, so that the screw driver is suitable for the bone screws with shorter lengths, the feeding amount or the rotating amount of the bone screws can be freely controlled, and secondary injury to patients at higher speed is avoided; the motor is arranged, so that the screw can be automatically rotated, the screw is suitable for the bone screws with longer lengths, the time is saved, and the workload of doctors is reduced.

With reference to fig. 7 and 8, the middle of the connecting groove 17 is in a circular hole shape, one side of the circular hole is provided with a square hole, the bottom of the knob is provided with a boss with the same shape as the connecting groove 17, the boss or the motor shaft is embedded into the connecting groove 17, and the knob and the connecting block 16 are both magnetic, so that the connecting block 16 can be used for mounting the knob and the motor, thereby achieving two purposes with one stroke, and simultaneously enabling the knob and the motor to be adsorbed on the connecting block 16, and preventing the knob and the motor from falling off; the top surface of the handle 11 is positioned at two sides of the connecting block 16 and is provided with a square fixing groove 18, when the rotating component 3 is a motor, a motor base arranged on the motor is embedded into the fixing groove 18, so that the position of the motor is fixed, the fixing groove 18 is arranged to limit the rotation of the motor body, the rotation of the motor shaft is avoided, the torque is output to the motor body, the motor body is rotated, and the motor is ensured to stably output the torque to the conical head 15_。

In conclusion, the universal hose commonly available in the market is adopted, so that the screwdriver head can rotate in multiple angles and multiple directions, the universal hose is adapted to operating environments with different sizes, the rotating range is always kept in the section range of the universal hose, and compared with the more abrupt rotating range of the universal joint, the probability of the contact between the screwdriver and the body of a patient is reduced, and the occurrence of medical accidents is effectively reduced; and through the track scissors that set up to have the curved rail, the swing of effectual restriction conical head makes the conical head can only rotate in a direction, guarantees can be stable with the bone screw installation or take out the skeleton in, simultaneously on the mounting means, also only need can realize opening or merging of curved rail through opening or merging the track scissors, easy operation is convenient, simple structure, the practicality is strong.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A universal screwdriver with track scissors is characterized by comprising a universal screwdriver (1), track scissors (2) erected outside the universal screwdriver (1) and a rotating part (3) erected on the universal screwdriver (1), wherein the universal screwdriver (1) comprises a handle (11), a taper sleeve (12) fixedly connected with one end of the handle (11) and a universal hose (13) inserted into the taper sleeve (12), one end of the track scissors (2) is provided with a straight rail (22), the straight rail (22) is sleeved outside the taper sleeve (12), wherein,

one end of the universal hose (13) far away from the handle (11) is fixedly connected with a conical head (15), one end of the straight rail (22) close to the conical head (15) is fixedly connected with a bent rail (23), and the universal hose (13) is inserted into the bent rail (23) so that the axis of the conical head (15) is not superposed with the axis of the taper sleeve (12).

2. The universal screwdriver with the track scissors as claimed in claim 1, wherein a conical seat (14) is erected between the universal hose (13) and the conical head (15), the universal hose (13) is fixedly connected with the conical seat (14), the conical head (15) is inserted into the conical seat (14), and the outer diameter of the conical seat (14) is larger than that of the curved rail (23).

3. The universal screwdriver with the track scissors as claimed in claim 2, wherein a clamping block (24) is fixedly connected to one end of the curved rail (23) close to the conical seat (14), a semispherical groove is formed in the clamping block (24), the universal hose (13) is embedded in the groove, and the diameter of the groove is 0.5 mm-2 mm larger than the outer diameter of the universal hose (13).

4. A universal screwdriver as claimed in claim 3, wherein the clamping block (24) is provided with a groove (25) at the end close to the conical seat (14), the groove (25) is in the shape of a half-circular truncated cone, and the end of the groove (25) with a larger caliber faces the conical seat (14).

5. A universal screwdriver with a pair of track scissors according to claim 1, wherein a curved rod (21) is connected between the track scissors (2) and the straight track (22) so that the length direction of the track scissors (2) is not the same as the length direction of the straight track (22).

6. A universal screwdriver with orbital shears according to claim 5, wherein the bending angle of the curved rod (21) ranges between 120 ° and 160 °.

7. The universal screwdriver with the track scissors as claimed in claim 1, wherein one end of the universal hose (13) extending into the handle (11) is fixedly connected with a connecting block (16), a connecting groove (17) is formed in the middle of the connecting block (16), and the rotating part (3) is inserted into the connecting groove (17) to drive the steel rope in the universal hose (13) to rotate.

8. The universal screwdriver according to claim 7, wherein the rotating member (3) is a knob or a motor, wherein the outer diameter of the knob is larger than the outer diameter of the handle, and the knob does not contact with the track scissors.

9. The universal screwdriver as recited in claim 8, wherein the connecting slot (17) has a circular hole in the middle, a square hole is formed in one side of the circular hole, a boss having the same shape as the connecting slot (17) is disposed at the bottom of the knob, the boss or the motor shaft is embedded in the connecting slot (17), and the knob and the connecting block (16) are both magnetic.

10. The universal screwdriver with a pair of track scissors as claimed in claim 9, wherein the top surface of the handle (11) is provided with square fixing grooves (18) at both sides of the connecting block (16), and when the rotating member (3) is a motor, a motor base installed on the motor is embedded in the fixing grooves (18) to fix the position of the motor.