CN112603458B - Bone screw tap with anti-slip thread and using method thereof - Google Patents
Bone screw tap with anti-slip thread and using method thereof Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1655—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for tapping
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/162—Chucks or tool parts which are to be held in a chuck
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
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Abstract
The invention belongs to the technical field of screw taps for bones, and particularly relates to a screw tap with anti-slip threads for bones, which comprises a screw tap, a bone drill connecting rod and an anti-slip positioning assembly, wherein chip collecting grooves are formed in the circumference of the bottom end of the side wall of the screw tap, anti-slip tapping threads are arranged on the edges of the chip collecting grooves, mounting assemblies are arranged at the top end of the screw tap and the bottom end of the bone drill connecting rod, each mounting assembly comprises a mounting groove, a connecting screw hole, an auxiliary gasket, a mounting block, a through screw hole, a double-headed bolt and an auxiliary nut, each anti-slip positioning assembly comprises a positioning transverse strip, a telescopic plate, a piston plate, an adjusting button, a positioning sliding groove, a positioning sliding block, positioning scales, scale indication strips, positioning holes and an electromagnet plate, and a depth control assembly is arranged on the side wall of the screw tap, and each depth control assembly comprises a vertical sliding groove, a vertical sliding block, an electromagnet rod, a limiting ring, an indication scale, a transition ring groove, a spring and a transition ring.
Description
Technical Field
The invention belongs to the technical field of bone screw taps, and particularly relates to a bone screw tap with an anti-slip thread and a using method thereof.
Background
In the treatment process of a clinical patient in orthopedic surgery or neurosurgery, a bone fracture plate and a bone screw are often needed to fix and repair a bone wound part. Particularly in neurosurgery, due to natural heterogeneity of density and thickness of a human skull, pre-drilled holes and even meninges and nerve tissues are easily damaged by carelessness during operation tapping, and a risk of huge injury is brought to a patient, so that very high requirements are imposed on tapping depth and direction. Meanwhile, the existing bone screw part is made of non-metallic materials, and self tapping is difficult to carry out, so that tapping needs to be carried out by means of a screw tap in the operation process.
The screw tap is a processing internal screw thread instrument, can divide into spiral flute screw tap, sword inclination screw tap, straight flute screw tap and effective screw tap etc. according to the shape, can divide into hand screw tap and machine screw tap according to service environment, medical treatment for the bone screw tap generally is the machine screw tap, drive bone through outside bone drill and carry out the tapping drilling with the screw tap, medical staff hand-held equipment carries out bone drilling, can't carry out accurate control to the drilling degree of depth, have gliding risk simultaneously, cause tapping many times, bring the misery for patient.
At present, chinese patent with application number CN201920827337.8 discloses an accurate direction screw tap of medical orthopedics, and this accurate direction screw tap of medical orthopedics includes handle and screw tap body, and screw tap body and handle detachably connect, and the screw tap body including with treat the smooth guide section of tapping through-hole assorted and be used for carrying out the screw thread section of tapping to this through-hole, smooth guide section is located the below of screw thread section. The design of smooth direction section on the device screw tap body has better accurate guidance quality for traditional screw tap, and convenient operation has reduced the uncertainty when operating. However, the depth of the rotating hole of the tap cannot be accurately controlled, and the smooth guide part is added to a part of the rotating hole, so that the inner part of the drilling hole is not threaded, the drilling hole is not used partially, the subsequent installation of related medical parts is influenced, and the bone of a patient is damaged externally.
Based on the anti-slip screw tap, the invention designs the bone screw tap with the anti-slip screw and the use method thereof.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a bone screw tap with an anti-slip thread and a using method thereof, which solve the problems that the depth of a rotating hole of the screw tap cannot be accurately controlled, and the phenomenon that part of the inner part of a drill hole is unthreaded and part of the drill hole is useless is caused by adding part of smooth guide parts, so that the subsequent installation of related medical parts is influenced, and the bone of a patient is damaged.
In order to achieve the purpose, the invention provides the following technical scheme:
a screw tap with anti-skid threads for bones comprises a screw tap, a bone drilling connecting rod and an anti-skid positioning assembly, wherein a chip collecting groove is formed in the circumference of the bottom end of the side wall of the screw tap, anti-skid tapping threads are arranged at the edge of the chip collecting groove, an installation assembly is arranged at the top end of the screw tap and the bottom end of the bone drilling connecting rod and comprises an installation groove, a connection screw hole, an auxiliary gasket, an installation block, a through screw hole, a stud bolt and an auxiliary nut, the installation groove is formed in the center of the top end of the screw tap, the connection screw hole is formed in the two opposite sides of the installation groove to the center of the inner wall and penetrates through the screw tap, the auxiliary gasket is fixed on the side wall of the screw tap at the periphery of the area where the end part of the connection screw hole is located, the installation block is fixed at the center of the bottom end of the bone drilling connecting rod, the through screw hole is formed in the center of the installation block, the stud bolt is in threaded connection between the through screw hole and the connection screw hole, the auxiliary nut is fixed at the two ends of the stud bolt, the anti-skid positioning assembly comprises a positioning transverse strip, a telescopic plate, a piston plate, an adjusting button, a positioning sliding groove, a positioning sliding block, positioning scales, scale indicating strips, positioning holes and an electric magnet plate, the telescopic plate is arranged on two sides of the center of the bottom end of the positioning transverse strip, the piston plate is movably connected in the telescopic plate, the adjusting button controls the piston plate to stretch in the telescopic plate, the positioning sliding groove is formed in the center of the top end of the positioning transverse strip, the positioning sliding block slides in the positioning sliding groove, the positioning scales are arranged on the edge of the positioning sliding groove, the scale indicating strips are arranged on the edge of the top end of the positioning sliding block, the positioning holes are formed in the center of the positioning sliding block and penetrate through the positioning sliding block, the electric magnet plate is embedded in the top wall of the inner cavity of the positioning sliding groove, a depth control assembly is arranged on the side wall of the screw tap, and the depth control assembly comprises a vertical sliding groove, a vertical sliding block, an electric magnet rod, Spacing ring, instruction scale, transition annular, spring and transition ring, erect the spout setting on the screw tap lateral wall, erect the slider and slide in erecting the spout, the electromagnetism pole is fixed between erecting the spout both ends, the electromagnetism pole activity runs through perpendicular slider, the spacing ring is fixed and is being erected the slider side, it is marginal at perpendicular spout to instruct the scale setting, the transition annular is seted up at location slider top center, the spring is fixed at transition annular bottom center, the transition ring is fixed on the spring top.
Preferably, the installation block is matched with the installation groove and the installation block is identical to the installation block in size, and the length of the stud is larger than the maximum vertical distance between the two groups of auxiliary gaskets.
Preferably, the positioning horizontal bar top end center bilateral symmetry has seted up the spread groove, the expansion plate is installed in the spread groove, the positioning horizontal bar top uses the spread groove to be provided with two sets of location screws as symmetrical thing symmetry, expansion plate top end center is fixed with the locating plate, set up on the locating plate with location screw complex cooperation screw, cooperation screw and the inside threaded connection of location screw have set screw.
Preferably, a through groove is formed in the center of the bottom end of the positioning sliding groove, and the diameter of the positioning hole and the width of the through groove are the same as the diameter of the screw tap.
Preferably, the top end of the positioning sliding block is higher than the horizontal plane where the top end of the positioning transverse strip is located, the positioning sliding block is made of an iron material, and the positioning scales are symmetrically arranged on two edges of the top end of the positioning sliding groove.
Preferably, erect the spout circumference and set up the region that the chip pocket located on the screw tap lateral wall, erect slider tip face and surpass screw tap lateral wall face, erect the slider and form by the iron material preparation, spacing ring top and bottom respectively with erect slider top and top parallel and level, the external diameter of transition annular equals the external diameter of spacing ring, the internal diameter of transition annular equals the internal diameter of spacing ring, the spring circumference is evenly fixed at transition annular bottom center, the shape size of the horizontal cross-section of transition ring equals the shape size of the horizontal cross-section of spacing ring.
Preferably, still be provided with the assistance-localization real-time subassembly on the location horizontal bar, the assistance-localization real-time subassembly is including supplementary spout, supplementary slider, connecting block, connecting hole, pole setting, bearing, diaphragm, trepanning and elastic ring.
Preferably, supplementary spout symmetry is seted up in location horizontal bar top center both sides, supplementary slider slides in supplementary spout, the connecting block is fixed on supplementary slider, the connecting hole is seted up at the connecting block center, in the pole setting installation connecting hole, the pole setting top is passed through the bearing and is rotated in the diaphragm bottom, the trepanning is seted up at diaphragm top center, the elastic ring is fixed on the trepanning inner wall.
Preferably, supplementary spout both ends and location spout both ends parallel and level, pole setting lateral wall bottom and connecting hole screw-thread fit, the diameter of trepanning equals the external diameter of spacing ring.
The use method of the bone screw tap with the anti-slip thread further comprises the following steps:
s1, installing a screw tap: through the installation assembly, the installation block at the end part of the bone drill connecting rod is in inserting fit with the installation groove on the screw tap, the stud bolt penetrates through the auxiliary gasket, the auxiliary gasket is in threaded fit with the connecting screw hole and the thread penetrating through the screw hole, the installation block and the installation groove are fixed in a threaded mode, and the screw tap and an external bone drill are further installed through the threaded connection of the auxiliary nut and the two ends of the stud bolt;
s2, tapping, drilling and positioning: the positioning transverse bar is placed above a bone with tapping, the piston plate is controlled to move downwards from the telescopic plate by using the adjusting button, the positioning transverse bar is placed above the bone, the positioning sliding chute is matched with the positioning sliding block in a sliding manner, the positioning sliding block is moved to be positioned right above the tapping position under the matching of the positioning scale and the scale indicating strip, and then the positioning sliding block is fixed together with a power supply of the electromagnet plate;
s3, adjusting the tapping drilling depth: medical staff holds the connected bone drill and the screw tap by hands, the lower part of the screw tap penetrates through the positioning hole to vertically contact the upper part of the bone, the position of the vertical sliding block is adjusted through indicating scales under the matching of the vertical sliding groove and the vertical sliding block, so that the distance between the limiting ring and the positioning sliding block is adjusted, the drilling depth is controlled, and after the adjustment is finished, the vertical sliding block is fixed by using an electromagnet rod;
s4, tapping and drilling: medical staff starts the bone and bores, drives the screw tap and rotates, under the effect of anti-skidding tapping screw thread, carries out the tapping drilling, and the in-process screw tap constantly moves down, when the spacing ring removed the transition ring to on the location slider, closes the bone and bores, and the tapping drilling finishes, and when spacing ring and transition ring contact, it rotated the extrusion to the transition ring, and under the effect of spring, the transition ring moved down the buffering, avoided the two to produce great rotational friction.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up anti-skidding locating component, place the location horizontal bar and take tapping skeleton top, utilize the adjusting knob control piston board to move down in the expansion plate, place the location horizontal bar in the skeleton top, utilize the sliding fit of location spout and location slider, under the cooperation of location scale and scale indication strip, the mobile location slider, make it be located directly over the tapping position, then together with the power of electromagnetism iron board, fix the location slider, can be according to actual drilling demand, adjust the position of location slider, be convenient for control the drilling position.
2. Through the arrangement of the depth control assembly, medical staff hold the connected bone drill and the screw tap by hands, the lower part of the screw tap passes through the positioning hole to vertically contact the upper part of the bone, under the matching of the vertical sliding groove and the vertical sliding block, the position of the vertical sliding block is adjusted through indicating scales, so that the distance between the limiting ring and the positioning sliding block is adjusted, the control of the punching depth is realized, after the adjustment is finished, the vertical sliding block is fixed by the electromagnet rod, the positioning of the limiting ring is realized, in the drilling process, the tapping and the drilling are carried out under the action of the anti-skid tapping thread, the screw tap continuously moves downwards in the process, when the limiting ring moves to the transition ring on the positioning sliding block, the bone drill is closed, tapping and drilling are finished, when the limiting ring is in contact with the transition ring, hole rotation is stopped, the transition ring is rotationally extruded in the process, and under the action of the spring, the transition ring moves downwards to buffer, so that large rotational friction between the limiting ring and the transition ring is avoided.
3. By arranging the auxiliary positioning assembly, when the antiskid positioning assembly positions the screw tap, the auxiliary positioning assembly is matched with the antiskid positioning assembly to jointly position the bone drill and the screw tap, medical staff hold the connected bone drill and the screw tap by hands, the lower part of the screw tap penetrates through the positioning hole to vertically contact the upper part of a bone, the lower part of the screw tap penetrates through the sleeve hole to enter the positioning hole, and the screw tap is subjected to auxiliary positioning under the action of the elastic ring; through setting up spread groove, location screw, locating plate, cooperation screw and set screw, utilize the screw-thread fit of set screw and cooperation screw and location screw, the installation and the dismantlement of the expansion plate of being convenient for.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the tap of the present invention;
FIG. 3 is a schematic view of the bone drill connecting rod of the present invention;
FIG. 4 is a schematic view of a cross-bar structure according to the present invention;
FIG. 5 is a schematic view of the first cross-sectional structure of FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of part A of the present invention;
FIG. 7 is an enlarged view of the portion B of the present invention;
FIG. 8 is a schematic view of the construction of the vertical slider of the present invention;
FIG. 9 is an enlarged view of the section C of the present invention;
FIG. 10 is a schematic diagram of the second cross-sectional structure of FIG. 4 according to the present invention;
in the figure: 1. a screw tap; 2. a bone drill extension rod; 3. a chip collecting groove; 4. anti-skid tapping threads; 5. mounting grooves; 6. a connecting screw hole; 7. an auxiliary pad; 8. mounting blocks; 9. the screw hole is penetrated; 10. a stud bolt; 11. an auxiliary nut; 12. positioning the horizontal bar; 13. a retractable plate; 14. a piston plate; 15. an adjusting knob; 16. positioning the chute; 17. positioning the sliding block; 18. positioning scales; 19. a scale indication bar; 20. positioning holes; 21. an electromagnet plate; 22. connecting grooves; 23. positioning the screw hole; 24. positioning a plate; 25. matching with the screw hole; 26. a set screw; 27. a vertical chute; 28. a vertical slide block; 29. an electromagnet rod; 30. a limiting ring; 31. indicating scales; 32. a transition ring groove; 33. a spring; 34. a transition ring; 35. an auxiliary chute; 36. an auxiliary slide block; 37. connecting blocks; 38. connecting holes; 39. erecting a rod; 40. a bearing; 41. a transverse plate; 42. trepanning; 43. an elastic ring.
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 1
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides the following technical solutions:
as shown in fig. 1 and 2, the bone screw tap with the anti-skid thread comprises a screw tap 1, a bone drill connecting rod 2 and an anti-skid positioning assembly, wherein the circumference of the bottom end of the side wall of the screw tap 1 is provided with a chip collecting groove 3, the edge of the chip collecting groove 3 is provided with an anti-skid tapping thread 4,
as shown in fig. 2 and 3, the top end of the tap 1 and the bottom end of the bone drill extension rod 2 are provided with mounting assemblies, the mounting assemblies comprise a mounting groove 5, a connecting screw hole 6, an auxiliary gasket 7, a mounting block 8, a through screw hole 9, a stud bolt 10 and an auxiliary nut 11,
specifically, a mounting groove 5 is arranged at the center of the top end of a screw tap 1, connecting screw holes 6 are arranged at the centers of two opposite inner walls of the mounting groove 5 and penetrate through the screw tap 1, auxiliary gaskets 7 are fixed on the side wall of the screw tap 1 at the periphery of the area where the end part of the connecting screw hole 6 is located, a mounting block 8 is fixed at the center of the bottom end of a bone drill connecting rod 2, a penetrating screw hole 9 is arranged at the center of the mounting block 8, a stud bolt 10 is in threaded connection between the penetrating screw hole 9 and the connecting screw holes 6, auxiliary nuts 11 are in threaded connection at two ends of the stud bolt 10,
it is noted that the mounting block 8 is arranged to fit the mounting groove 5 and has the same size, the length of the stud 10 is greater than the maximum vertical distance between the two sets of auxiliary spacers 7,
as shown in fig. 4 and 5, the anti-skid positioning assembly comprises a positioning horizontal bar 12, a telescopic plate 13, a piston plate 14, an adjusting button 15, a positioning chute 16, a positioning slide block 17, a positioning scale 18, a scale indication bar 19, a positioning hole 20 and an electromagnet plate 21,
specifically, the expansion plate 13 is arranged at two sides of the center of the bottom end of the positioning horizontal bar 12, the piston plate 14 is movably connected in the expansion plate 13, the adjusting button 15 controls the piston plate 14 to expand and contract in the expansion plate 13, the positioning chute 16 is arranged at the center of the top end of the positioning horizontal bar 12, the positioning slide block 17 slides in the positioning chute 16, the positioning scale 18 is arranged at the edge of the positioning chute 16, the scale indication strip 19 is arranged at the edge of the top end of the positioning slide block 17, the positioning hole 20 is arranged at the center of the positioning slide block 17 and penetrates through the positioning slide block 17, the electromagnet plate 21 is embedded at the top wall of the inner cavity of the positioning chute 16,
it is worth noting that the center of the bottom end of the positioning sliding chute 16 is provided with a through groove, the diameter of the positioning hole 20 and the width of the through groove are the same as the diameter of the screw tap 1, the top end of the positioning sliding block 17 is higher than the horizontal plane where the top end of the positioning transverse bar 12 is located, the positioning sliding block 17 is made of iron material, the positioning scales 18 are symmetrically arranged at two edges of the top end of the positioning sliding chute 16,
the working principle and the using process of the invention are as follows:
s1, installing a screw tap: through the installation assembly, the installation block 8 at the end part of the bone drill connecting rod 2 is in inserting fit with the installation groove 5 on the screw tap 1, the stud bolt 10 penetrates through the auxiliary gasket 7, the threaded fit between the stud bolt and the connection screw hole 6 and the thread penetrating through the screw hole 9 is utilized, the threaded fixation of the installation block 8 and the installation groove 5 is realized, and the screw tap 1 and an external bone drill are further installed by being in threaded connection with the two ends of the stud bolt 10 through the auxiliary nut 11;
s2, tapping, drilling and positioning: the positioning transverse bar 12 is placed above a bone with tapping, the piston plate 14 is controlled to move downwards from the telescopic plate 13 by the adjusting button 15, the positioning transverse bar 12 is placed above the bone, the positioning sliding groove 16 is matched with the positioning sliding block 17 in a sliding mode, the positioning sliding block 17 is moved under the matching of the positioning scale 18 and the scale indicating strip 19 to be located right above the tapping position, and then the positioning sliding block 17 is fixed together with a power supply of the electromagnet plate 21.
Example 2
A bone tap with a slip-proof thread according to example 1, as shown in fig. 7, 8 and 9:
the side wall of the tap 1 is provided with a depth control assembly, the depth control assembly comprises a vertical sliding groove 27, a vertical sliding block 28, an electromagnet rod 29, a limiting ring 30, an indication scale 31, a transition ring groove 32, a spring 33 and a transition ring 34,
specifically, a vertical sliding groove 27 is arranged on the side wall of the tap 1, a vertical sliding block 28 slides in the vertical sliding groove 27, an electromagnet rod 29 is fixed between two ends of the vertical sliding groove 27, the electromagnet rod 29 movably penetrates through the vertical sliding block 28, a limiting ring 30 is fixed on the side surface of the vertical sliding block 28, an indication scale 31 is arranged on the edge of the vertical sliding groove 27, a transition ring groove 32 is arranged in the center of the top end of the positioning sliding block 17, a spring 33 is fixed in the center of the bottom end of the transition ring groove 32, a transition ring 34 is fixed at the top end of the spring 33,
it is worth noting that the vertical sliding groove 27 is circumferentially arranged in the area where the chip collecting groove 3 is located on the side wall of the tap 1, the end face of the vertical sliding block 28 exceeds the side wall face of the tap 1, the vertical sliding block 28 is made of iron materials, the top end and the bottom end of the limiting ring 30 are respectively flush with the top end and the top end of the vertical sliding block 28, the outer diameter of the transition ring groove 32 is equal to the outer diameter of the limiting ring 30, the inner diameter of the transition ring groove 32 is equal to the inner diameter of the limiting ring 30, the circumference of the spring 33 is uniformly fixed in the center of the bottom end of the transition ring groove 32, and the shape of the horizontal section of the transition ring 34 is equal to the shape of the horizontal section of the limiting ring 30;
the working principle and the using process of the invention are as follows:
s3, adjusting the tapping drilling depth: the medical staff holds the connected bone drill and the screw tap 1 by hands, the lower part of the screw tap 1 penetrates through the positioning hole 20 to vertically contact the upper part of the bone, the position of the vertical sliding block 28 is adjusted through the indication scale 31 under the matching of the vertical sliding groove 27 and the vertical sliding block 28, so that the distance between the limiting ring 30 and the positioning sliding block 17 is adjusted, the control of the punching depth is realized, and after the adjustment is finished, the vertical sliding block 28 is fixed by the electromagnet rod 29;
s4, tapping and drilling: medical staff starts the bone drill, drives screw tap 1 and rotates, under the effect of anti-skidding tapping screw thread 4, carries out the tapping drilling, and in-process screw tap 1 constantly moves down, when spacing ring 30 removed the transition ring 34 to on the locating slide block 17, closes the bone drill, and the tapping drilling is ended, and when spacing ring 30 and transition ring 34 contact, it rotated the extrusion to transition ring 34, and under spring 33's effect, transition ring 34 moved down the buffering, avoids the two to produce great rotational friction.
Example 3
A bone tap with a slip-proof thread according to example 2, as shown in fig. 5, 6 and 10: two sides of the center of the top end of the positioning transverse bar 12 are symmetrically provided with connecting grooves 22, the expansion plate 13 is installed in the connecting grooves 22, the top end of the positioning transverse bar 12 is symmetrically provided with two groups of positioning screw holes 23 by taking the connecting grooves 22 as symmetrical objects, the center of the top end of the expansion plate 13 is fixedly provided with a positioning plate 24, the positioning plate 24 is provided with a matching screw hole 25 matched with the positioning screw hole 23, the matching screw hole 25 and the positioning screw hole 23 are internally and threadedly connected with a positioning screw 26, the positioning transverse bar 12 is also provided with an auxiliary positioning assembly, and the auxiliary positioning assembly comprises an auxiliary sliding groove 35, an auxiliary sliding block 36, a connecting block 37, a connecting hole 38, a vertical rod 39, a bearing 40, a transverse plate 41, a trepanning 42 and an elastic ring 43;
specifically, the auxiliary sliding grooves 35 are symmetrically arranged on two sides of the center of the top end of the positioning cross bar 12, the auxiliary sliding blocks 36 slide in the auxiliary sliding grooves 35, the connecting blocks 37 are fixed on the auxiliary sliding blocks 36, the connecting holes 38 are arranged in the center of the connecting blocks 37, the upright posts 39 are arranged in the connecting holes 38, the top ends of the upright posts 39 rotate at the bottom ends of the transverse plates 41 through bearings 40, the sleeve holes 42 are arranged in the center of the top ends of the transverse plates 41, and the elastic rings 43 are fixed on the inner walls of the sleeve holes 42;
it is worth noting that two ends of the auxiliary sliding chute 35 are flush with two ends of the positioning sliding chute 16, the bottom end of the side wall of the upright post 39 is in threaded fit with the connecting hole 38, and the diameter of the trepanning 42 is equal to the outer diameter of the limiting ring 30;
the working principle and the using process of the invention are as follows:
s1, installing a screw tap: through the installation assembly, the installation block 8 at the end part of the bone drill connecting rod 2 is in inserting fit with the installation groove 5 on the screw tap 1, the stud bolt 10 penetrates through the auxiliary gasket 7, the threaded fit between the stud bolt and the connection screw hole 6 and the thread penetrating through the screw hole 9 is utilized, the threaded fixation of the installation block 8 and the installation groove 5 is realized, and the screw tap 1 and an external bone drill are further installed by being in threaded connection with the two ends of the stud bolt 10 through the auxiliary nut 11;
s2, tapping, drilling and positioning: placing a positioning transverse bar 12 above a bone with tapping, controlling a piston plate 14 to move downwards from an expansion plate 13 by using an adjusting button 15, placing the positioning transverse bar 12 above the bone, moving a positioning slide block 17 by using the sliding fit of a positioning slide groove 16 and a positioning slide block 17 under the fit of a positioning scale 18 and a scale indication strip 19 to enable the positioning slide block 17 to be positioned right above the tapping position, and then fixing the positioning slide block 17 together with a power supply of an electromagnet plate 21;
s3, adjusting the tapping drilling depth: the medical staff holds the connected bone drill and the screw tap 1 by hands, the lower part of the screw tap 1 penetrates through the positioning hole 20 to vertically contact the upper part of the bone, the position of the vertical sliding block 28 is adjusted through the indication scale 31 under the matching of the vertical sliding groove 27 and the vertical sliding block 28, so that the distance between the limiting ring 30 and the positioning sliding block 17 is adjusted, the control of the punching depth is realized, and after the adjustment is finished, the vertical sliding block 28 is fixed by the electromagnet rod 29;
s4, tapping and drilling: medical staff starts the bone drill, drives screw tap 1 and rotates, under the effect of anti-skidding tapping screw thread 4, carries out the tapping drilling, and in-process screw tap 1 constantly moves down, when spacing ring 30 removed the transition ring 34 to on the locating slide block 17, closes the bone drill, and the tapping drilling is ended, and when spacing ring 30 and transition ring 34 contact, it rotated the extrusion to transition ring 34, and under spring 33's effect, transition ring 34 moved down the buffering, avoids the two to produce great rotational friction.
When the antiskid positioning assembly positions the screw tap 1, the auxiliary positioning assembly is matched with the antiskid positioning assembly to position the bone drill and the screw tap 1 together, medical staff hold the connected bone drill and the screw tap 1 by hands, the lower part of the screw tap 1 penetrates through the positioning hole 20 to vertically contact the upper part of a bone, the lower part of the screw tap 1 penetrates through the sleeve hole 42 to enter the positioning hole 20, and the screw tap 1 is positioned in an auxiliary mode under the action of the elastic ring 43; the mounting and dismounting of the expansion plate 13 is facilitated by the threaded engagement of the positioning screws 26 with the engagement screw holes 25 and the positioning screw holes 23.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A bone screw tap with a non-slip thread is characterized in that: the bone drill connecting rod comprises a screw tap (1), a bone drill connecting rod (2) and an anti-skidding positioning assembly, wherein a chip collecting groove (3) is formed in the circumference of the bottom end of the side wall of the screw tap (1), anti-skidding tapping threads (4) are arranged on the edge of the chip collecting groove (3), an installation assembly is arranged at the top end of the screw tap (1) and the bottom end of the bone drill connecting rod (2), the installation assembly comprises an installation groove (5), a connection screw hole (6), an auxiliary gasket (7), an installation block (8), a through screw hole (9), a double-end bolt (10) and an auxiliary nut (11), the installation groove (5) is formed in the center of the top end of the screw tap (1), the connection screw hole (6) is formed in the centers of the two inner walls of the installation groove (5) and penetrates through the screw tap (1), the auxiliary gasket (7) is fixed on the side wall of the screw tap (1) at the regional circumference where the end part of the connection screw hole (6) is located, and the installation block (8) is fixed at the center of the bottom end of the bone drill connecting rod (2), the utility model discloses a fixing device for the anti-skidding and anti-skidding composite material, including the installation piece (8), the through screw hole (9) is seted up at installation piece (8) center, stud (10) threaded connection is between through screw hole (9) and connection screw hole (6), supplementary nut (11) threaded fixation is at stud (10) both ends, anti-skidding locating component is including location horizontal bar (12), expansion plate (13), piston plate (14), adjusting button (15), location spout (16), location slider (17), location scale (18), scale indication strip (19), locating hole (20) and electro-magnet board (21), expansion plate (13) set up in location horizontal bar (12) bottom center both sides, piston plate (14) swing joint is in expansion plate (13), adjusting button (15) control piston plate (14) are flexible in expansion plate (13), location spout (16) are seted up at location horizontal bar (12) top center, the location slider (17) slides in location spout (16), location scale (18) set up at location spout (16) edge, scale indication strip (19) set up at location slider (17) top edge, locating hole (20) are seted up at location slider (17) center and are run through the setting, electromagnetism iron plate (21) are inlayed and are established at location spout (16) inner chamber roof, be provided with the degree of depth control subassembly on screw tap (1) lateral wall, the degree of depth control subassembly is including erecting spout (27), erecting slider (28), electromagnetism iron rod (29), spacing ring (30), instruction scale (31), transition annular (32), spring (33) and transition ring (34), erect spout (27) and set up on screw tap (1) lateral wall, erect slider (28) and slide in erecting spout (27), electromagnetism iron rod (29) are fixed between perpendicular spout (27) both ends, electromagnetism iron pole (29) activity runs through perpendicular slider (28), spacing ring (30) are fixed and are being erected slider (28) side, indicate scale (31) to set up and erecting spout (27) edge, transition annular (32) are seted up at location slider (17) top center, spring (33) are fixed at transition annular (32) bottom center, transition ring (34) are fixed on spring (33) top.
2. The bone tap with a slip-resistant wire according to claim 1, wherein: the mounting block (8) is matched with the mounting groove (5) and is arranged, the size of the mounting block and the mounting groove is the same, and the length of the stud bolt (10) is larger than the maximum vertical distance between the two groups of auxiliary gaskets (7).
3. The bone tap with a slip-resistant wire according to claim 1, wherein: positioning horizontal bar (12) top center bilateral symmetry has seted up spread groove (22), install in spread groove (22) expansion plate (13), positioning horizontal bar (12) top is provided with two sets of location screw (23) for symmetrical thing symmetry with spread groove (22), expansion plate (13) top center is fixed with locating plate (24), set up on locating plate (24) and fix a position screw (23) complex cooperation screw (25), cooperation screw (25) and location screw (23) internal thread are connected with set screw (26).
4. The bone tap with a slip-resistant wire according to claim 1, wherein: the center of the bottom end of the positioning sliding groove (16) is provided with a through groove, and the diameter of the positioning hole (20) and the width of the through groove are the same as the diameter of the screw tap (1).
5. The bone tap with a slip-resistant wire according to claim 1, wherein: the top end of the positioning sliding block (17) is higher than the horizontal plane where the top end of the positioning transverse strip (12) is located, the positioning sliding block (17) is made of an iron material, and the positioning scales (18) are symmetrically arranged on two edges of the top end of the positioning sliding groove (16).
6. The bone tap with a slip-resistant wire according to claim 1, wherein: erect spout (27) circumference and set up the region that chip groove (3) located on screw tap (1) lateral wall, erect slider (28) tip face and surpass screw tap (1) lateral wall face, erect slider (28) and form by the iron material preparation, spacing ring (30) top and bottom respectively with erect slider (28) top and top parallel and level, the external diameter of transition annular groove (32) equals the external diameter of spacing ring (30), the internal diameter of transition annular groove (32) equals the internal diameter of spacing ring (30), spring (33) circumference is evenly fixed at transition annular groove (32) bottom center, the shape size of the horizontal cross-section of transition ring (34) equals the shape size of the horizontal cross-section of spacing ring (30).
7. The bone tap with a slip-resistant wire according to claim 1, wherein: still be provided with auxiliary positioning subassembly on location horizontal bar (12), auxiliary positioning subassembly is including supplementary spout (35), supplementary slider (36), connecting block (37), connecting hole (38), pole setting (39), bearing (40), diaphragm (41), trepanning (42) and elastic ring (43).
8. The bone tap with a slip-resistant wire according to claim 7, wherein: supplementary spout (35) symmetry is seted up in location horizontal bar (12) top center both sides, supplementary slider (36) slide in supplementary spout (35), connecting block (37) are fixed on supplementary slider (36), connecting block (37) center is seted up in connecting block (38), in pole setting (39) erection joint hole (38), pole setting (39) top is passed through bearing (40) and is rotated in diaphragm (41) bottom, trepanning (42) are seted up at diaphragm (41) top center, elastic ring (43) are fixed on trepanning (42) inner wall.
9. The bone tap with a slip-resistant wire according to claim 8, wherein: supplementary spout (35) both ends and location spout (16) both ends parallel and level, pole setting (39) lateral wall bottom and connecting hole (38) screw-thread fit, the diameter of trepanning (42) equals the external diameter of spacing ring (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011004.XA CN112603458B (en) | 2021-01-06 | 2021-01-06 | Bone screw tap with anti-slip thread and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011004.XA CN112603458B (en) | 2021-01-06 | 2021-01-06 | Bone screw tap with anti-slip thread and using method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN112603458A CN112603458A (en) | 2021-04-06 |
| CN112603458B true CN112603458B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110011004.XA Active CN112603458B (en) | 2021-01-06 | 2021-01-06 | Bone screw tap with anti-slip thread and using method thereof |
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| CN (1) | CN112603458B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105796166A (en) * | 2016-03-09 | 2016-07-27 | 成都聚智工业设计有限公司 | Screw tap for department of orthopaedics |
| CN208905673U (en) * | 2018-07-06 | 2019-05-28 | 张尊礼 | A kind of Orthopeadic Surgery drilling-hole positioning device |
| CN208910386U (en) * | 2018-05-14 | 2019-05-31 | 雷寿斌 | A kind of bone surgery bone drill regulating positioning device |
| CN210077762U (en) * | 2018-02-09 | 2020-02-18 | 张红云 | Connect reliable orthopedics with boring bone drill chuck |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6951562B2 (en) * | 2002-11-13 | 2005-10-04 | Ralph Fritz Zwirnmann | Adjustable length tap and method for drilling and tapping a bore in bone |
| EP3649969A1 (en) * | 2008-06-26 | 2020-05-13 | Smart Medical Devices, Inc. | Depth controllable and measurable medical driver devices |
| CN205144656U (en) * | 2015-11-12 | 2016-04-13 | 山东省立医院 | Screw tap for bone surgery |
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2021
- 2021-01-06 CN CN202110011004.XA patent/CN112603458B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105796166A (en) * | 2016-03-09 | 2016-07-27 | 成都聚智工业设计有限公司 | Screw tap for department of orthopaedics |
| CN210077762U (en) * | 2018-02-09 | 2020-02-18 | 张红云 | Connect reliable orthopedics with boring bone drill chuck |
| CN208910386U (en) * | 2018-05-14 | 2019-05-31 | 雷寿斌 | A kind of bone surgery bone drill regulating positioning device |
| CN208905673U (en) * | 2018-07-06 | 2019-05-28 | 张尊礼 | A kind of Orthopeadic Surgery drilling-hole positioning device |
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| CN112603458A (en) | 2021-04-06 |
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Address after: Room 601 and Room 602, Building 4, No. 12, Zhicheng Road, Songshan Lake Park, Dongguan City, Guangdong Province, 523000 Patentee after: Dongguan Jinming Medical Instrument Co.,Ltd. Address before: 523000 Room 102, building 2, No.15 Sanxing Road, Dongcheng Street, Dongguan City, Guangdong Province Patentee before: Dongguan Jinming Medical Instrument Co.,Ltd. |