CN117084748A - Screw tap for bone with controllable screw and use method thereof - Google Patents
Screw tap for bone with controllable screw and use method thereof Download PDFInfo
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- CN117084748A CN117084748A CN202311252005.9A CN202311252005A CN117084748A CN 117084748 A CN117084748 A CN 117084748A CN 202311252005 A CN202311252005 A CN 202311252005A CN 117084748 A CN117084748 A CN 117084748A
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 238000005553 drilling Methods 0.000 claims description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000010485 coping Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- A61B17/1655—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for tapping
-
- 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
- A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
-
- 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
- A61B17/1628—Motors; Power supplies
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a screw tap for bone with controllable screw and a use method thereof, comprising a drill bit assembly, a switching assembly and a handle assembly; the drill bit assembly comprises a drill bit and a drill bit connecting part, wherein the drill bit connecting part is fixed at one end of the drill bit, a first thread groove is formed in the drill bit connecting part, and a first thread is formed in the inner wall of the drill bit connecting part; the switching component comprises a switching pipe and a blocking piece, the blocking piece is arranged at the top of the switching pipe, and a second thread is arranged on the switching pipe; the handle assembly comprises a T-shaped handle, a second thread groove is formed in a connecting rod at the bottom, and a rotating piece is further arranged on the connecting rod; the length of the drill bit can be adjusted, and the device can be used for coping with different operation environments, so that the practicability of the device is greatly enhanced; in the operation process, the purpose of rotating the drill bit can be achieved by rotating the handle, the operation is simple and labor-saving, and the operation time is saved; after the operation is finished, the drill bit can be stored in the adapter cylinder, so that the cleanness is maintained, and the service life of the tap is prolonged.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a screw tap for a bone with controllable screw and a use method thereof.
Background
A tap is a tool for machining internal threads, also called a tap, and a bone tap is a medical instrument specially used in bone surgery, mainly for machining internal threads in human bones so as to implant specific medical instruments, and the bone tap is made of a high-strength stainless steel material to ensure durability and corrosion resistance, and its structure mainly includes a drill, a threaded region and a handle.
Currently, bone taps are available in various sizes and dimensions, such as diameter, length, thread type, etc., according to different surgical needs, and a doctor needs to select an appropriate tap for surgery according to the specific situation of a patient before surgery. In a specific use, a physician first drills a hole in a bone using a drill bit, then inserts a tap into the drill hole, and machines the internal threads by rotating a handle. After completion, the physician may insert an implant of the same thread type into the borehole for fracture fixation or other orthopedic purposes.
In a special operation environment, taps with different lengths are needed to be used for operation, the current taps are usually of fixed types and cannot be adjusted according to actual operation needs, so that different taps are needed to be frequently replaced for operation in the operation process, the workload is increased for medical staff, and the operation quality is affected to a certain extent.
Disclosure of Invention
The invention aims to provide a screw tap for bones with controllable screw and a use method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a screw tap for bone with controllable screw comprises a drill bit component, a switching component and a handle component;
the drill bit assembly is screwed into the drill bit assembly from the bottom of the switching assembly, and the handle assembly is inserted into the drill bit assembly from the top of the switching assembly;
the drill bit assembly comprises a drill bit and a drill bit connecting part, wherein the drill bit connecting part is fixed at one end of the drill bit, a first thread groove is formed in the outer wall of the drill bit connecting part, and a first thread is formed in the inner wall of the drill bit connecting part;
the switching component comprises a switching pipe and a blocking piece, the blocking piece is arranged at the top of the switching pipe, the handle component is locked in the switching component, and a second thread is arranged on the inner wall of the switching pipe;
the handle assembly comprises a T-shaped handle, a second thread groove is formed in the outer wall of a connecting rod at the bottom of the T-shaped handle, and a rotating piece matched with the blocking piece is further arranged at the joint of the connecting rod and the handle.
Preferably, the blocking piece is welded on the outer side of the top of the adapter tube and comprises a sleeve tube, an opening is formed in the center of the top of the sleeve tube, a locking ring is arranged in the opening, and a first sliding groove is formed in the bottom of the locking ring.
Preferably, the top of the adapter tube is provided with a second sliding groove, the second sliding groove has the same depth and width as the first sliding groove, the positions of the second sliding groove and the first sliding groove are opposite in a vertical plane, and the diameter of the opening is at least larger than the inner diameter of the adapter tube.
Preferably, the rotating member comprises two symmetrically arranged rotating shafts, the two rotating shafts are movably sleeved on the outer surface of the fixed shaft, a containing groove is formed in one end plane of the rotating shaft, and a plurality of balls are arranged in the containing groove.
Preferably, the fixing shaft is fixed on the outer surface of the connecting rod, the holding grooves on the two rotating shafts face opposite directions, the holding groove at the upper end corresponds to the first sliding groove, the holding groove at the lower end corresponds to the second sliding groove, and the sum of the depth of the holding groove and the first depth of the sliding groove and the sum of the depth of the holding groove and the second depth of the sliding groove at the lower end are not larger than the diameter of the ball.
Preferably, the diameter of the opening should be at least smaller than the diameter of the rotation shaft, and the inner diameter of the socket pipe should be at least larger than the diameter of the rotation shaft.
Preferably, the second thread is in matched rotary connection with the first thread groove, the first thread is in matched rotary connection with the second thread groove, the matched spiral direction of the second thread and the first thread groove is the same as the matched spiral direction of the first thread and the second thread groove, the section diameter of the connecting rod does not exceed the inner diameter of the drill bit connecting part, and the outer diameter of the drill bit connecting part does not exceed the inner diameter of the transfer pipe.
Preferably, the anti-skid lines are arranged on both sides of the outer surface of the T-shaped handle and the outer surface of the transfer tube, the anti-skid lines on both sides of the outer surface of the T-shaped handle are symmetrically arranged, and connecting blocks are further arranged at both ends of the T-shaped handle.
Preferably, the length of the connecting rod and the length of the drill bit connecting part are not longer than the length of the transfer tube, and the length of the drill bit connecting part is at least longer than the length of the connecting rod.
The using method of the screw tap for the bone with controllable screw comprises the following steps:
s1, screwing the drill bit assembly into the adapter tube from the bottom of the adapter tube, holding the T-shaped handle by hand and rotating until a thread groove II on the outer surface of the connecting rod is matched with a thread I in the drill bit connecting part;
s2, whether the rotation direction of the rotary T-shaped handle is matched with the expansion direction of the drill bit or not is adjusted by rotating the T-shaped handle;
s3, holding the T-shaped handle by hand and rotating the handle, and adjusting the drill bit to a required length;
s4, aligning the drill bit to a position needing to be drilled, holding the adapter tube by hand, and simultaneously rotating the T-shaped handle to drive the drill bit to rotate for drilling;
and S5, after the drilling is finished, the drill bit is disinfected and cleaned, and then the T-shaped handle is rotated to enable the drill bit to be received into the adapter tube, so that the receiving is completed.
Compared with the prior art, the invention has the beneficial effects that:
1. the length of the drill bit can be adjusted according to actual conditions, different operation environments can be dealt with, and the practicability of the device is greatly enhanced;
2. in the operation process, the purpose of rotating the drill bit can be achieved by rotating the handle, the operation is simple and labor-saving, and the operation time is saved;
3. after the operation is finished, the drill bit can be stored in the adapter cylinder, so that the cleanness is maintained, and the service life of the tap is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of a spiral steerable bone tap and method of use according to the present invention;
FIG. 2 is a schematic view of a spiral steerable bone tap and method of use according to the present invention;
FIG. 3 is a schematic view of a screw-controlled bone tap and handle assembly according to the present invention;
FIG. 4 is a schematic view of the portion A of FIG. 3 showing a spiral steerable bone tap and method of use according to the present invention;
FIG. 5 is a schematic view of a portion A of the screw tap for bone and a method of using the screw tap according to the present invention;
FIG. 6 is a schematic view of a spiral steerable bone tap and method of use of the present invention;
FIG. 7 is a schematic view of the portion B of FIG. 6 illustrating a spiral steerable bone tap and method of use according to the present invention;
FIG. 8 is a cross-sectional view of a screw-controlled bone tap and drill attachment means for a method of using the screw-controlled bone tap of the invention;
FIG. 9 is a flow chart of a spiral controlled bone tap and method of use of the spiral controlled bone tap of the present invention.
In the figure: 1. a drill bit; 2. a bit connecting member; 201. a first thread groove; 202. a first thread; 3. a transfer tube; 301. a second thread; 302. a second sliding groove; 4. a resistance member; 401. a ferrule; 402. an opening; 403. a locking ring; 404. a first sliding groove; 5. a T-shaped handle; 501. a connecting rod; 502. a thread groove II; 6. a rotating member; 601. a rotation shaft; 602. a fixed shaft; 603. a receiving groove; 604. a ball; 7. anti-skid lines; 8. and (5) connecting a block.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-8, a spiral controllable bone tap includes a drill assembly, a tap assembly, and a handle assembly;
specifically, the drill bit assembly is screwed into the adapter assembly from the bottom of the adapter assembly, and the handle assembly is inserted into the adapter assembly from the top of the adapter assembly;
specifically, the drill bit assembly comprises a drill bit 1 and a drill bit connecting part 2, wherein the drill bit connecting part 2 is fixed at one end of the drill bit 1, a first thread groove 201 is formed in the outer wall of the drill bit connecting part 2, and a first thread 202 is formed in the inner wall of the drill bit connecting part 2;
specifically, the switching assembly comprises a switching tube 3 and a blocking piece 4, the blocking piece 4 is arranged at the top of the switching tube 3, the handle assembly is locked in the switching assembly, and a second thread 301 is arranged on the inner wall of the switching tube 3;
the connecting rod 501 part of the handle is mainly locked inside the adapter tube 3 by the blocking effect between the blocking piece 4 and the rotating piece 6, the second thread 301 on the inside of the adapter tube 3 is meshed with the first thread groove 201 on the drill bit connecting part 2 for rotation, so that the stability of connection is ensured, the drill bit 1 and the drill bit connecting part 2 are usually connected through welding, the impact force is large in the drilling process, the bearing force of the drill bit 1 is large, the drill bit 1 is easy to fall off from the drill bit connecting part 2, and therefore the drill bit is welded together, meanwhile, the drill bit can be set into a detachable drill bit assembly in the specific implementation process, the practicability is enhanced by replacing drill bits of different models, and the multi-environment use of the device is realized.
Specifically, the handle assembly comprises a T-shaped handle 5, a second thread groove 502 is formed in the outer wall of a connecting rod 501 at the bottom of the T-shaped handle 5, and a rotating piece 6 matched with the blocking piece 4 is further arranged at the joint of the connecting rod 501 and the handle 5.
In the actual operation process, the drill bit assembly is screwed in from the bottom of the switching assembly, and the drill bit assembly is rotationally fixed in the switching tube 3 due to engagement connection among threads, at the moment, the handle assembly inserted into the top of the switching assembly is held by hand to rotate so as to screw the connecting rod 501 into the drill bit connecting component 2, and the connecting rod and the drill bit connecting component are in threaded engagement, so that the rotation of the T-shaped handle 5 can drive the drill bit assembly to stretch and retract, and the screw controllability of the whole screw tap is realized.
Specifically, the blocking piece 4 is welded on the outer side of the top of the adapter tube 3, and comprises a sleeve tube 401, an opening 402 is formed in the center of the top of the sleeve tube 401, a locking ring 403 is arranged in the opening 402, and a sliding groove I404 is formed in the bottom of the locking ring 403.
In the specific implementation process, the blocking piece 4 is welded on the outer side of the switching tube 3 and is fixedly connected with the switching tube 3, the blocking piece 4 not only has a limiting effect on the rotating piece 6, but also is matched with the switching tube 3 to form a space for the rotating piece 6 to rotate, the sliding groove I404 on the blocking piece 4 is matched with the sliding groove II 302 on the switching tube 3, and after the rotating piece 6 is installed in the sliding groove I, the rolling of the balls 604 in the sliding groove is utilized to enable the rotating piece 6 to rotate at will between the blocking piece 4 and the switching tube 3.
Specifically, the second sliding groove 302 is formed on the top of the adapter tube 3, the depth and width of the second sliding groove 302 and the first sliding groove 404 are the same, the positions are corresponding in the vertical plane, and the diameter of the opening 402 is at least larger than the inner diameter of the adapter tube 3.
In the rotating process of the rotating piece 6, the size of the opening 402 at least needs to meet the requirement that the connecting rod 501 passes through, collision is avoided in the rotating process, the whole size of the rotating piece 6 can be at least contained in the inner space of the blocking piece 4, the inner space is too tight to be worn in the long-term rotating process, the outer wall is thinned, the service life of the rotating piece 6 is shortened, accordingly, the whole handle assembly needs to be maintained and replaced, the cost is high, the rotating piece 6 rotates in the blocking piece 4, the inner wall of the blocking piece 4 cannot be touched, a certain distance is needed between the sliding groove and the containing groove 603, the rotating shaft 601 is mainly rotated by rolling of the balls 604 in the rotating process, the abrasion between the balls 604 and the sliding groove and the containing groove 603 is mainly used in the long-term rotating process, and the service life of the handle can be prolonged to a certain extent.
Specifically, the rotating member 6 includes two symmetrically arranged rotating shafts 601, the two rotating shafts 601 are movably sleeved on the outer surface of the fixed shaft 602, a containing groove 603 is formed in one end plane of the rotating shaft 601, and a plurality of balls 604 are installed in the containing groove 603.
In the invention, the length of the extension of the blocking piece 4 on the adapter tube 3 should be a little longer than the whole length of the rotating piece 6 so as to accommodate the rolling of the rolling balls 604 in the accommodating groove 603, the rotating shafts 601 in the rotating piece 6 are arranged in two sections symmetrically and are connected to the fixed shafts 602, the rotating shafts 602 can rotate independently, and when the handle rotates, the upper end and the lower end of the rotating piece 6 can rotate independently, so that the upper end and the lower end of the rotating piece are stressed differently, the situation of no-force stress is avoided, the service life of the device is prolonged, the rotating piece 6 is stressed pertinently in any rotating direction of the handle, and the rotating piece 6 is ensured not to be damaged at the same time.
Specifically, the fixed shaft 602 is fixed on the outer surface of the connecting rod 501, the receiving grooves 603 on the two rotating shafts 601 face opposite directions, the upper receiving groove 603 corresponds to the first sliding groove 404, the lower receiving groove 603 corresponds to the second sliding groove 302, and the sum of the depth of the upper receiving groove 603 and the depth of the first sliding groove 404 and the sum of the depth of the lower receiving groove 603 and the depth of the second sliding groove 302 should not exceed the diameter of the ball 604.
Specifically, the diameter of opening 402 should be at least smaller than the diameter of rotation axis 601, and the inside diameter of ferrule 401 should be at least larger than the diameter of rotation axis 601.
In the present invention, the balls 604 can roll in the accommodating groove 603 and the sliding groove, so that the rotating shaft 601 in the rotating member 6 can rotate in a certain plane, and the depth of the sliding groove and the accommodating groove 603 at least needs to ensure that when the balls 604 move in the accommodating groove, both ends of the balls can simultaneously contact the accommodating groove 603 and the sliding groove, so that the rotating shaft 601 can rotate.
Specifically, the second thread 301 is rotationally connected with the first thread groove 201 in a matching manner, the first thread 202 is rotationally connected with the second thread groove 502 in a matching manner, the matching spiral direction of the second thread 301 and the first thread groove 201 is the same as the matching spiral direction of the first thread 202 and the second thread groove 502, the section diameter of the connecting rod 501 does not exceed the pipe inner diameter of the drill bit connecting part 2, and the pipe outer diameter of the drill bit connecting part 2 does not exceed the pipe inner diameter of the adapter pipe 3.
According to the invention, the controllability of the thread length of the drill bit is realized through the direct matching of the threads and the thread grooves, the device is used in various methods, the spiral directions of the two groups of threads and the thread grooves are consistent, the drill bit 1 can smoothly perform rotation and expansion, the inside and outside of the drill bit connecting part 2 are in spiral engagement, the expansion controllability of the drill bit 1 is higher, the stability of the expansion process is also ensured, the stability in the drilling process is also higher, and the rod diameter of the connecting rod 501 is required to be smaller than the pipe inner diameter of the drill bit connecting part 2 in order to ensure that the connection between the connecting rod 501 and the inside of the drill bit connecting part 2 is stable enough.
Specifically, the anti-skid patterns 7 are respectively arranged on the two sides of the outer surface of the T-shaped handle 5 and the outer surface of the adapter tube 3, the anti-skid patterns 7 on the two sides of the outer surface of the T-shaped handle 5 are symmetrically arranged, and connecting blocks 8 are further arranged at the two ends of the T-shaped handle 5.
According to various using methods of the device, the anti-skid patterns 7 are also arranged at corresponding positions, and the anti-skid patterns 7 are required to be contacted with two sides of the handle 5 when the handle 5 is held to rotate, so that the friction force is increased, the drilling process is more labor-saving, and the external part of the hand-held transfer tube 3 is required to be integrally stabilized when the handle 5 is used for drilling, so that the anti-skid patterns 7 are required to be arranged outside the transfer tube 3;
the connecting blocks 8 arranged at the two ends of the handle 5 mainly provide external driving devices for the screw tap, the handle 5 is rotated through the connecting blocks 8 connected with the two ends of the handle 5, in certain specific operation processes, the drilling process is difficult to complete only through manpower, and therefore the guiding handle 5 is required to be driven to rotate by electric power, so that the drill bit 1 is driven to drill or guide screw nails.
Specifically, the length of the connecting rod 501 and the length of the drill bit connecting member 2 do not exceed the length of the adapter tube 3, and the length of the drill bit connecting member 2 should be at least greater than the length of the connecting rod 501.
In this embodiment, the length of the connecting rod 501 should not exceed the length of the adapter tube 3, otherwise the connecting rod 501 portion of the handle 5 cannot completely enter the adapter tube 3, so that the handle 5 cannot be fixed, so that the overall device is not strong in practicability, and the length of the drill bit connecting member 2 should not exceed the length of the adapter tube 3, otherwise the overall length of the drill bit 1 and the drill bit connecting member 2 is too long, the arrangement is unreasonable, and the drill bit 1 cannot be retracted into the adapter tube 3, wherein the length of the drill bit connecting member 2 should be at least longer than the connecting rod 501, otherwise when the connecting rod 501 is rotated, the drill bit connecting member 2 stretches and contracts along with the rotation of the connecting rod 501, when the connecting rod 501 is contracted to a certain extent, the condition that the connecting rod 501 squeezes the drill bit 1 occurs when the space in the pipe is smaller than that of the connecting rod 501, damage and even cracking occur to the connection of the drill bit 1 and the drill bit connecting member 2 over time.
A method of using a spiral steerable bone tap according to any of claims 1-9, comprising the steps of:
s1, screwing the drill bit assembly into the adapter tube 3 from the bottom of the adapter tube, holding the T-shaped handle 5 by hand and rotating until a second thread groove 502 on the outer surface of the connecting rod 501 is matched with a first thread 202 in the drill bit connecting part 2;
s2, rotating the T-shaped handle 5 to adjust whether the rotating direction of the T-shaped handle is matched with the telescopic direction of the drill bit 1;
s3, holding the T-shaped handle 5 by hand and rotating the handle to adjust the drill bit 1 to a required length;
s4, aiming the drill bit 1 at a part needing to be drilled, holding the adapter tube 3, and simultaneously rotating the T-shaped handle 5 to drive the drill bit 1 to rotate for drilling;
s5, after the drilling is finished, the drill bit 1 is disinfected and cleaned, and then the T-shaped handle 5 is rotated to enable the drill bit 1 to be received into the adapter tube 3, so that the receiving is completed.
The tap for bone in this embodiment is generally made of a high-strength metal material such as stainless steel, which is used to withstand high pressure and load during operation, and has high corrosion resistance, ensuring long-term use in the body without damage.
Bone taps are usually provided with different sizes and shapes to adapt to different parts and types of fracture, an operator usually selects an appropriate tap according to the specific situation of a patient, during the operation, the operator can ensure the accurate positioning of the tap through an operation navigation system or X-rays, the embodiment can change the length of a drill bit and the using method on the tap with the same model, the operator can conveniently cope with abrupt operation environments, the change of the length of the drill bit mainly corresponds to drilling surfaces with different depths, surrounding tissues or bones are prevented from being damaged, and a better operation method is provided.
Currently, common models of bone taps are: GA2010, GA2020, GA2030, GA2040, GA2050, GA2060; the whole screw tap is a T-shaped screw tap and corresponds to HA2, HA2.7, HA3.5, HA4.5, HB4 and HB6.5 respectively;
it is worth mentioning that in the invention, the change of the whole screw tap model can be realized by changing the drills of different models, the drill 1 and the drill connecting part 2 can be detachably connected, the practicability of the device is enhanced by utilizing the changing function of the drill 1, and after the operation is finished, the device can be detached and cleaned, and the device can be sterilized and cleaned in an omnibearing manner without dead angles, so that the screw tap can be conveniently maintained and maintained in daily life.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A spiral controllable bone screw tap, characterized in that: comprises a drill bit assembly, a switching assembly and a handle assembly;
the drill bit assembly is screwed into the drill bit assembly from the bottom of the switching assembly, and the handle assembly is inserted into the drill bit assembly from the top of the switching assembly;
the drill bit assembly comprises a drill bit (1) and a drill bit connecting part (2), wherein the drill bit connecting part (2) is fixed at one end of the drill bit (1), a thread groove I (201) is formed in the outer wall of the drill bit connecting part (2), and a thread I (202) is formed in the inner wall of the drill bit connecting part;
the switching assembly comprises a switching tube (3) and a blocking piece (4), the blocking piece (4) is arranged at the top of the switching tube (3), the handle assembly is locked in the switching assembly, and a thread II (301) is arranged on the inner wall of the switching tube (3);
the handle assembly comprises a T-shaped handle (5), a second threaded groove (502) is formed in the outer wall of a connecting rod (501) at the bottom of the T-shaped handle (5), and a rotating piece (6) matched with the blocking piece (4) is further arranged at the joint of the connecting rod (501) and the handle (5).
2. A spiral steerable bone tap according to claim 1, wherein: the blocking piece (4) is welded on the outer side of the top of the adapter tube (3) and comprises a sleeve tube (401), an opening (402) is formed in the center of the top of the sleeve tube (401), a locking ring (403) is arranged in the opening (402), and a first sliding groove (404) is formed in the bottom of the locking ring (403).
3. A spiral steerable bone tap according to claim 2, wherein: the top of the transfer pipe (3) is provided with a second sliding groove (302), the depth and the width of the second sliding groove (302) are the same as those of the first sliding groove (404), the positions of the second sliding groove and the first sliding groove are opposite in a vertical plane, and the diameter of the opening (402) is at least larger than the inner diameter of the transfer pipe (3).
4. A spiral steerable bone tap according to claim 1, wherein: the rotating piece (6) comprises two symmetrically arranged rotating shafts (601), the two rotating shafts (601) are movably sleeved on the outer surface of the fixed shaft (602), a containing groove (603) is formed in one end plane of the rotating shaft (601), and a plurality of balls (604) are arranged in the containing groove (603).
5. A spiral steerable bone tap according to claim 4, wherein: the fixed shaft (602) is fixed on the outer surface of the connecting rod (501), the holding grooves (603) on the two rotating shafts (601) face opposite directions, the holding groove (603) at the upper end corresponds to the first sliding groove (404), the holding groove (603) at the lower end corresponds to the second sliding groove (302), and the sum of the depth of the holding groove (603) and the depth of the first sliding groove (404) and the sum of the depth of the holding groove (603) and the depth of the second sliding groove (302) at the lower end are not more than the diameter of the ball (604).
6. A spiral steerable bone tap according to claim 4, wherein: the diameter of the opening (402) should be at least smaller than the diameter of the rotation shaft (601), and the inner diameter of the ferrule (401) should be at least larger than the diameter of the rotation shaft (601).
7. A spiral steerable bone tap according to claim 1, wherein: the screw thread II (301) and the screw thread groove I (201) are in matched rotary connection, the screw thread I (202) and the screw thread groove II (502) are in matched rotary connection, the matched spiral direction of the screw thread II (301) and the screw thread groove I (201) is the same as the matched spiral direction of the screw thread I (202) and the screw thread groove II (502), the section diameter of the connecting rod (501) does not exceed the pipe inner diameter of the drill bit connecting part (2), and the pipe outer diameter of the drill bit connecting part (2) does not exceed the pipe inner diameter of the switching pipe (3).
8. The spiral steerable bone tap according to claim 7, wherein: the anti-skid connecting device is characterized in that anti-skid lines (7) are arranged on both sides of the outer surface of the T-shaped handle (5) and the outer surface of the switching tube (3), the anti-skid lines (7) on both sides of the outer surface of the T-shaped handle (5) are symmetrically arranged, and connecting blocks (8) are further arranged at both ends of the T-shaped handle (5).
9. A spiral steerable bone tap according to claim 1, wherein: the length of the connecting rod (501) and the length of the drill bit connecting part (2) are not more than the length of the switching tube (3), and the length of the drill bit connecting part (2) is at least larger than the length of the connecting rod (501).
10. A method of using a spiral steerable bone tap according to any of claims 1-9, wherein: comprising the following steps:
s1, screwing the drill bit assembly into the adapter tube (3) from the bottom of the adapter tube, holding the T-shaped handle (5) and rotating until a thread groove II (502) on the outer surface of the connecting rod (501) is matched with a thread I (202) in the drill bit connecting part (2);
s2, rotating the T-shaped handle (5) to adjust whether the rotating direction of the T-shaped handle is matched with the extending direction of the drill bit (1);
s3, holding the T-shaped handle (5) by hand and rotating the handle to adjust the drill bit (1) to a required length;
s4, aligning the drill bit (1) to a part needing to be drilled, holding the adapter tube (3) and simultaneously rotating the T-shaped handle (5) to drive the drill bit (1) to rotate for drilling;
s5, after the drilling is finished, the drill bit (1) is disinfected and cleaned, and then the T-shaped handle (5) is rotated to enable the drill bit (1) to be received into the adapter tube (3) so as to finish receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311252005.9A CN117084748A (en) | 2023-09-26 | 2023-09-26 | Screw tap for bone with controllable screw and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311252005.9A CN117084748A (en) | 2023-09-26 | 2023-09-26 | Screw tap for bone with controllable screw and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117084748A true CN117084748A (en) | 2023-11-21 |
Family
ID=88770044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311252005.9A Pending CN117084748A (en) | 2023-09-26 | 2023-09-26 | Screw tap for bone with controllable screw and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117084748A (en) |
-
2023
- 2023-09-26 CN CN202311252005.9A patent/CN117084748A/en active Pending
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