CN113712657A - Multi-angle threading locator - Google Patents
Multi-angle threading locator Download PDFInfo
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- CN113712657A CN113712657A CN202111053243.8A CN202111053243A CN113712657A CN 113712657 A CN113712657 A CN 113712657A CN 202111053243 A CN202111053243 A CN 202111053243A CN 113712657 A CN113712657 A CN 113712657A
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- clamping plate
- angle
- guide
- guide channel
- lantern ring
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- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 238000010862 gear shaping Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 26
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000002758 humerus Anatomy 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241001227561 Valgus Species 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 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
- 210000000578 peripheral nerve Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8897—Guide wires or guide pins
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention belongs to the technical field of auxiliary equipment, and particularly discloses a multi-angle needle threading positioner, which comprises a guide channel and an angle adjusting device for adjusting the direction of the guide channel; the clamping device comprises a circular lantern ring, a first clamping plate, a second clamping plate and a second driving mechanism, the first clamping plate and the second clamping plate are arranged in the lantern ring, and the second driving mechanism is used for driving the first clamping plate and the second clamping plate to be close to or far away from each other so as to clamp or loosen the arm of the patient extending into the lantern ring; the mounting seat rotates around the pin shaft in a plane where the axial section of the lantern ring is located, and the locking piece is used for locking the position of the angle adjusting device on the arc-shaped guide rail; the device can accurately guide the drilling direction of the Kirschner wire, effectively improve the success rate of the Kirschner wire fixing operation and reduce the operation pain of a patient.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment, in particular to a multi-angle needle threading positioner.
Background
The Kirschner wire fixation is a common internal fixation method, the Kirschner wire is generally adopted for fixing unstable fractures, the clinical Kirschner wire fixation effect is better for fixing short bones, irregular bones, adjacent joint fractures and across joints, when the Kirschner wire is fixed, one end of the Kirschner wire is firstly required to be installed on an electric drill, then the electric drill is started, and the Kirschner wire is driven into bones to be fixed.
The supracondylar fracture of the humerus of the child is a frequently encountered disease and a common disease of the fracture of the child, the traditional manual reduction and the small splint fixation have difficult fixation, the fracture is easy to be displaced again, and the elbow varus and the elbow valgus deformity are easy to be complicated in a long term. In clinic, the cross kirschner wire is mostly adopted for fixation after reduction of the supracondylar fracture of the humerus of the child, but the insertion of the kirschner wire usually depends on the experience and the hand feeling of an operator, the angle and the position of the kirschner wire are difficult to master, the insertion deviation and repeated insertion are easily caused, the pain of a patient is increased, the risk of damaging the peripheral nerves and blood vessels of the fracture is increased, and secondary injury is caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a multi-angle threading locator which can accurately guide the drilling direction of a Kirschner wire, effectively improve the success rate of the Kirschner wire fixation operation and reduce the operation pain of a patient.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a multi-angle needle threading positioner comprises a guide channel for controlling the drilling direction of a Kirschner wire and an angle adjusting device for adjusting the direction of the guide channel;
the angle adjusting device comprises an installation base provided with the guide channel, the guide channel penetrates through the installation base, the installation base is located in a U-shaped groove, the installation base is hinged to the side wall of the U-shaped groove through a pin shaft, a disc is arranged on the outer side of one side wall of the U-shaped groove, an angle scale is arranged on the side face of the disc, the axis of the guide channel is perpendicular to the axis of the pin shaft in a crossed mode, gear teeth are uniformly distributed in the circumferential direction of the disc to form a fluted disc, a gear shaping and a first driving mechanism are arranged on the side face of the installation base, the first driving mechanism is used for driving the tip of the gear shaping to be inserted into the tooth groove of the fluted disc, the tip of the gear shaping is arranged to be in a tooth shape matched with the tooth groove, a calibration line which is parallel to the axis of the guide channel and matched with the angle scale is arranged on the side face of the gear shaping, and the calibration line extends in the radial direction of the fluted disc;
the clamping device comprises a circular lantern ring, a first clamping plate, a second clamping plate and a second driving mechanism, the first clamping plate and the second clamping plate are arranged in the lantern ring, and the second driving mechanism is used for driving the first clamping plate and the second clamping plate to be close to or far away from each other so as to clamp or loosen the arm of the patient extending into the lantern ring;
the circumference of the lantern ring is provided with an arc-shaped guide rail, a first sliding block of the arc-shaped guide rail is connected with the bottom of the U-shaped groove, the mounting seat rotates in the plane where the axial section of the lantern ring is located around the pin shaft, and the locking piece is used for locking the position of the U-shaped groove on the arc-shaped guide rail.
Further, first actuating mechanism is including seting up in the mount pad and along the slide of the axial extension of direction passageway, the slide is the blind hole, just the rectangular hole of intercommunication slide is seted up to the side of mount pad, from inside to outside installs second slider, expanding spring and plug screw in proper order in the slide, second slider and slide sliding fit, plug screw and slide threaded connection, expanding spring's both ends are contradicted with second slider and plug screw respectively, wherein, the rectangular in-hole sliding fit has the connecting rod, the both ends of connecting rod are connected with second slider and gear shaping respectively.
Further, the gear shaping is laminated with the side of mount pad, just one side that the mount pad was kept away from to the gear shaping is provided with anti-skidding line.
Further, second actuating mechanism is including lead screw and guide bar and the drive lead screw pivoted drive division that parallels, the both ends of first splint and second splint are connected with the swivel nut of locating the lead screw both ends and the sliding sleeve of locating the guide bar both ends respectively, wherein, the screw thread of lead screw is revolved to the opposite direction, just the both ends of lead screw are articulated with the lantern ring respectively, the both ends of guide bar are connected with the lantern ring respectively.
Further, the driving part comprises a knob connected to one end of the lead screw.
Furthermore, the opposite sides of the first clamping plate and the second clamping plate are respectively provided with an arc surface which is attached to the arms, two ends of each arc surface are respectively provided with an elastic thin plate, two ends of each elastic thin plate are respectively connected with the corresponding arc surface, and the elastic thin plates are bent outwards to form an arc shape.
The guide sleeve is inserted into the guide channel and is in threaded connection with the guide channel, two ends of the guide sleeve extend out of the guide channel, one end of the guide sleeve, which is in contact with the arm of the patient, is a front end, the other end of the guide sleeve, which is far away from the arm, is a rear end, and the side surface of the rear end is provided with a coaxial outer hexagon.
Further, the front end is hemispherical.
Furthermore, the guide sleeves are classified into a plurality of types according to the inner diameter sizes of the guide sleeves, and the outer diameter sizes and the inner diameter sizes of the different types of guide sleeves are the same.
Further, the retaining member is a locking bolt screwed in a threaded hole in the first sliding block, and during operation, the head end of the locking bolt is abutted to the rail of the arc-shaped guide rail.
Compared with the prior art, the orthopedic limb rehabilitation training bed provided by the invention has the advantages that the structure is different, the operation is convenient, the installation seat is positioned at one side of the arm to be penetrated by the kirschner wire after the circumferential position of the installation seat on the lantern ring is adjusted under the assistance of perspective equipment, the position of the installation seat on the lantern ring is locked through the locking piece, then the installation seat is adjusted to rotate around the pin shaft to correct the needle insertion angle of the guide channel, the needle insertion angle is locked by meshing the gear insert and the fluted disc after the needle insertion angle is corrected, the kirschner wire is subsequently penetrated through the guide channel through equipment such as an electric drill and the like, the limitation of the locking piece on the installation seat can be removed after the needle penetration at the current position is finished, the operation can be repeated after the needle insertion at the next needle penetration position along the arc guide rail, the multi-position needle penetration can be finished, the efficiency is high, and the success rate of the kirschner wire fixing operation is effectively improved, reduce the operation time and avoid the secondary injury caused in the process of threading the kirschner wire.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a multi-angle needle threading positioner.
Fig. 2 is a partial view taken from the direction a of fig. 1.
Fig. 3 is a partial cross-sectional view of fig. 2.
Fig. 4 is an enlarged view of the angle adjusting means and the arc-shaped guide rail shown in fig. 1.
In the figure: 1. the novel adjustable screw rod comprises an arc-shaped guide rail, 2 parts of a lantern ring, 3 parts of a screw sleeve, 4 parts of a lead screw, 5 parts of a first clamping plate, 6 parts of an elastic thin plate, 7 parts of an arm, 8 parts of a second clamping plate, 9 parts of a knob, 10 parts of a locking bolt, 11 parts of a first sliding block, 12 parts of a disc, 13 parts of a gear shaping, 14 parts of a guide sleeve, 15 parts of a mounting seat, 16 parts of a pin shaft, 17 parts of a U-shaped groove, 18 parts of a sliding sleeve, 19 parts of a guide rod, 20 parts of angle scale marks, 21 parts of a calibration line, 22 parts of a telescopic spring, 23 parts of a slide way, 24 parts of a screw plug, 25 parts of a guide channel and 26 parts of a strip hole.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
As shown in fig. 1 to 4, a multi-angle needle threading positioner as a preferred embodiment of the present invention includes a guide channel 25 for controlling the drilling direction of a kirschner wire, and an angle adjusting device for adjusting the direction of the guide channel 25, the guide channel 25 is used for inserting the kirschner wire, so as to control the needle threading direction of the kirschner wire on the humeral condyle of the arm 7 of a patient, and in practical application, the angle adjusting device is used for adjusting the angle of the guide channel 25 according to the affected part of the patient, so as to match the needle insertion angle of the affected part of the patient, thereby ensuring accurate needle insertion and high success rate;
in this embodiment, the angle adjusting device includes an installation base 15 provided with the above-mentioned guide channel 25, the guide channel 25 penetrates through the installation base 15 to form a through hole for the penetration of the kirschner wire, and the installation base 15 is installed in the U-shaped groove 17, and two sides of the installation base 15 are respectively hinged with the side walls of the U-shaped groove 17 through the pin 16, the disc 12 is provided on the outer side of one side wall of the U-shaped groove 17, the angle scale is provided on the side surface of the disc 12, the angle scale and the disc 12 are concentric, it should be noted that the angle scale is limited to the prior art, and is specifically set to the common general knowledge in the art and is not described in detail any more, and the axis of the guide channel 25 and the axis of the pin 16 are crossed and perpendicular to each other, so as to ensure that the rotation angles of the guide channel 25 and the installation base 15 are kept consistent, and all rotate around the pin 16, and gear teeth are uniformly distributed in the circumferential direction of the disc 12, a fluted disc is formed, the side surface of the mounting seat 15 is provided with a gear shaping 13 and a first driving mechanism, the first driving mechanism is used for driving the tip end of the gear shaping 13 to be inserted into the tooth groove of the fluted disc, the tip end of the gear shaping 13 is provided with a tooth shape matched with the tooth groove, in practical operation, the installation seat 15 is limited to rotate around the pin shaft 16 by means of the meshing of the gear shaping 13 and the fluted disc, and the side of the gear shaping 13 is provided with a calibration line 21 which is parallel to the axis of the guide channel 25 and is matched with the angle dividing ruler, the calibration line 21 extends along the radial direction of the fluted disc, after the calibration line 21 and the angle scale line 20 on the fluted disc are aligned (i.e. are in the same straight line), the inclination angle of the guide channel 25 is obtained by reading the numerical value on the angle scale line 20 corresponding to the calibration line 21 (it should be noted that the inclination angle is relative to the arm 7), which is convenient and fast, and the needle insertion angle can be accurately adjusted;
the clamping device comprises a circular lantern ring 2, a first clamping plate 5, a second clamping plate 8 and a second driving mechanism, wherein the first clamping plate 5 and the second clamping plate 8 are arranged in the lantern ring 2, and the second driving mechanism is used for driving the first clamping plate 5 and the second clamping plate 8 to be close to or far away from each other so as to clamp or loosen an arm 7 of a patient extending into the lantern ring 2; the fixing device comprises a lantern ring 2, an arc-shaped guide rail 1 is arranged in the circumferential direction of the lantern ring 2, a first sliding block 11 of the arc-shaped guide rail 1 is connected with the bottom of a U-shaped groove 17, a mounting seat 15 rotates around a pin shaft 16 in a plane where an axial section of the lantern ring 2 is located, a locking piece is used for locking the position of the U-shaped groove 17 on the arc-shaped guide rail 1, when the fixing device is in actual use, an arm 7 of a patient is inserted into the lantern ring 2, the position of the lantern ring 2 is adjusted to enable the lantern ring 2 to be located near a humeral condyle, then a second driving mechanism is controlled to drive a first clamping plate 5 and a second clamping plate 8 to approach each other to clamp the arm 7, and then an angle adjusting device and a guide channel 25 are installed on the arm 7 of the patient to guarantee that the angle adjusting device and the guide channel 25 are stably connected with the arm 7.
When the multi-angle needle threading positioner provided by the invention is applied, under the assistance of perspective equipment, the installation seat 15 is adjusted at the circumferential position of the lantern ring 2, the installation seat 15 is positioned at one side of the arm 7 where the Kirschner wire is to be threaded, the position of the installation seat 15 on the lantern ring 2 is locked through the locking piece, then the installation seat 15 is adjusted to rotate around the pin shaft 16 to correct the needle inserting angle of the guide channel 25, after the needle inserting angle is corrected, the inserted needle angle is locked by meshing the inserted teeth 13 and the fluted disc, and then the Kirschner wire is threaded along the guide channel 25 through equipment such as an electric drill and the like, it needs to be noted that after the needle threading at the current position is completed, the limit of the locking piece on the installation seat 15 can be released, the needle threading at the current position can be completed after the needle threading is rotated to the next needle threading position along the arc guide rail 1, the operation can be repeated, the efficiency is high, the success rate of the Kirschner wire fixing operation is effectively improved, the operation time is reduced, avoiding secondary damage in the process of threading the kirschner wire.
In practical application, the hinged position of the side wall of the U-shaped groove 17 and the mounting seat 15 is set to be circular coaxial with the pin shaft 16, the side wall of the mounting seat 15 is provided with a sinking platform for accommodating the side wall of the U-shaped groove 17, and the outline of the sinking platform is matched with the outline of the side wall, so that the side wall of the U-shaped groove 17 is flush with the side face of the mounting seat 15.
On the basis of the above embodiment, specifically, the first driving mechanism includes a slide 23 that is provided on the mounting seat 15 and extends along the axial direction of the guide channel 25, the slide 23 is a blind hole, the side surface of the mounting seat 15 is provided with a long hole 26 that communicates with the slide 23, the slide 23 is parallel to the long hole 26, a second slider, an expansion spring 22 and a plug 24 are sequentially installed in the slide 23 from inside to outside, the second slider is in sliding fit with the slide 23, the plug 24 is in threaded connection with the slide 23, two ends of the expansion spring 22 are respectively abutted against the second slider and the plug 24, the plug 24 is located at one end of the mounting seat 15 away from the fluted disc, so that the second slider is close to the fluted disc, wherein a connecting rod is in sliding fit in the long hole 26, two ends of the connecting rod are respectively connected with the second slider and the insert 13, when the first driving mechanism is actually used, the compression of the expansion spring 22 can be realized by shifting the insert 13 in the direction away from the fluted disc, the gear shaping 13 is separated from the tooth groove of the fluted disc, so that the limit of the mounting seat 15 is released, and the mounting seat 15 can rotate around the pin shaft 16 to adjust the needle threading angle; and after the angle adjustment of the guide channel 25 is completed, the gear shaping 13 is released, and the gear shaping 13 is meshed with the fluted disc again under the pushing of the telescopic spring 22 to complete the locking.
On the basis of above-mentioned embodiment, preferably, the side laminating of gear shaping 13 and mount pad 15 guarantees the stability of gear shaping 13 slip process, avoids rocking, and one side that mount pad 15 was kept away from to gear shaping 13 is provided with anti-skidding line, and the reinforcing staff points and the surperficial frictional force of gear shaping 13, avoids the slippage.
In addition to the above embodiments, the second driving mechanism includes a screw rod 4, a guide rod 19 and a driving portion for driving the screw rod 4 to rotate, two ends of the first clamping plate 5 and the second clamping plate 8 are respectively connected to a screw sleeve 3 provided at two ends of the screw rod 4 and a sliding sleeve 18 provided at two ends of the guide rod 19, wherein the screw threads of the screw rod 4 are opposite, two ends of the screw rod 4 are respectively hinged to the lantern rings 2, two ends of the guide rod 19 are respectively connected to the lantern rings 2, when in actual use, the arm 7 of the patient is inserted between the first clamping plate 5 and the second clamping plate 8, and the first clamping plate 5 and the second clamping plate 8 can be driven to approach each other by rotating the screw rod 4, so as to clamp the arm 7; it should be noted that, the arc guide rail is provided with a notch for the screw rod 4 to extend out of the lantern ring 2, more specifically, the driving part includes a knob 9 connected to one end of the screw rod 4 extending out of the lantern ring 2, and the worker can manually screw the knob.
In order to achieve better technical effects, the opposite sides of the first clamping plate 5 and the second clamping plate 8 are both provided with cambered surfaces which are attached to the arms 7, two ends of each cambered surface are respectively provided with an elastic thin plate 6, two ends of each elastic thin plate 6 are respectively connected with the corresponding cambered surfaces, and the elastic thin plates 6 are bent outwards to form arcs; in addition, since the arm 7 is approximately circular in cross section, the elastic sheet 6 contacts the side surface of the arm 7, so that the collar 2 is prevented from swinging circumferentially during needle threading, and needle threading dislocation is prevented.
On the basis of the above embodiment, the device further comprises a guide sleeve 14, the guide sleeve 14 is inserted into the guide channel 25 and is connected with the guide channel 25 through threads, two ends of the guide sleeve 14 extend out of the guide channel 25, one end of the guide sleeve 14, which is in contact with the arm 7 of the patient, is a front end, one end of the guide sleeve 14, which is far away from the arm 7, is a rear end, and the side surface of the rear end is provided with a coaxial outer hexagon;
in addition, when the device is used, the front end of the guide sleeve 14 can be used for contacting the affected part in advance according to the situation of an operation scheme so as to accurately position the needle penetrating part, then the position of the lantern ring 2 on the arm 7 of the patient is adjusted, and the mounting seat 15 is driven to rotate, so that the needle penetrating angle is adjusted, the accurate positioning of the needle penetrating part is guaranteed, the needle penetrating angle is accurately controlled, and the treatment effect is improved.
Preferably, the front end is hemispherical, so as to avoid the tip scratching the arm 7 of the patient.
On the basis of the above embodiment, the guide sleeves 14 are classified into a plurality of types according to the inner diameter sizes thereof, and the outer diameter sizes and the inner diameter sizes of the different types of guide sleeves 14 are the same and different, so that the inner diameters are adapted to kirschner wires of different thicknesses; and when in production, other sizes are ensured to be inconvenient, and only the size of the rotary hole is changed, so that the processing and production efficiency is greatly improved.
On the basis of the above embodiment, the locking member is the locking bolt 10, the locking bolt 10 is screwed into the threaded hole on the first sliding block 11, and during operation, the locking bolt 10 is screwed, so that the head end of the locking bolt 10 is abutted against the rail of the arc-shaped guide rail 1, and locking is realized.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A multi-angle needle threading positioner is characterized by comprising a guide channel for controlling the drilling direction of a Kirschner wire and an angle adjusting device for adjusting the direction of the guide channel;
the angle adjusting device comprises an installation base provided with the guide channel, the guide channel penetrates through the installation base, the installation base is located in a U-shaped groove, the installation base is hinged to the side wall of the U-shaped groove through a pin shaft, a disc is arranged on the outer side of one side wall of the U-shaped groove, an angle scale is arranged on the side face of the disc, the axis of the guide channel is perpendicular to the axis of the pin shaft in a crossed mode, gear teeth are uniformly distributed in the circumferential direction of the disc to form a fluted disc, a gear shaping and a first driving mechanism are arranged on the side face of the installation base, the first driving mechanism is used for driving the tip of the gear shaping to be inserted into the tooth groove of the fluted disc, the tip of the gear shaping is arranged to be in a tooth shape matched with the tooth groove, a calibration line which is parallel to the axis of the guide channel and matched with the angle scale is arranged on the side face of the gear shaping, and the calibration line extends in the radial direction of the fluted disc;
the clamping device comprises a circular lantern ring, a first clamping plate, a second clamping plate and a second driving mechanism, the first clamping plate and the second clamping plate are arranged in the lantern ring, and the second driving mechanism is used for driving the first clamping plate and the second clamping plate to be close to or far away from each other so as to clamp or loosen the arm of the patient extending into the lantern ring;
the circumference of the lantern ring is provided with an arc-shaped guide rail, a first sliding block of the arc-shaped guide rail is connected with the bottom of the U-shaped groove, the mounting seat rotates in the plane where the axial section of the lantern ring is located around the pin shaft, and the locking piece is used for locking the position of the U-shaped groove on the arc-shaped guide rail.
2. The multi-angle threading locator of claim 1, characterized in that, first actuating mechanism is including seting up in the mount pad and along the axially extended slide of direction passageway, the slide is the blind hole, just the rectangular hole of intercommunication slide is seted up to the side of mount pad, from inside to outside installs second slider, expanding spring and plug in proper order in the slide, second slider and slide sliding fit, plug and slide threaded connection, expanding spring's both ends are contradicted with second slider and plug respectively, wherein, rectangular downthehole sliding fit has the connecting rod, the both ends of connecting rod are connected with second slider and gear shaping respectively.
3. The multi-angle threading locator of claim 2, wherein the gear shaping is attached to a side surface of the mounting seat, and an anti-slip pattern is arranged on a side of the gear shaping away from the mounting seat.
4. The multi-angle threading positioner according to claim 1, wherein the second driving mechanism comprises a screw rod, a guide rod and a driving portion for driving the screw rod to rotate, the two ends of the first clamping plate and the second clamping plate are respectively connected with screw sleeves arranged at the two ends of the screw rod and sliding sleeves arranged at the two ends of the guide rod, wherein the screw threads of the screw rod are opposite in rotation direction, the two ends of the screw rod are respectively hinged with the sleeve rings, and the two ends of the guide rod are respectively connected with the sleeve rings.
5. The multi-angle needle threading positioner of claim 4, wherein said drive section comprises a knob connected to one end of said lead screw.
6. The multi-angle needle threading positioner according to claim 4, wherein one side of the first clamping plate opposite to the second clamping plate is provided with an arc surface for fitting an arm, two ends of the arc surface are respectively provided with an elastic thin plate, two ends of the elastic thin plate are respectively connected with the corresponding arc surface, and the elastic thin plate is bent outwards to form an arc shape.
7. The multi-angle needle threading positioner according to claim 1, further comprising a guide sleeve, wherein the guide sleeve is inserted into the guide channel and is connected with the guide channel through threads, two ends of the guide sleeve extend out of the guide channel, one end of the guide sleeve, which is in contact with the arm of the patient, is a front end, one end of the guide sleeve, which is far away from the arm, is a rear end, and the side of the rear end is provided with a coaxial outer hexagon.
8. The multi-angle needle threading positioner of claim 7, wherein the front end is hemispherical.
9. The multi-angle needle threading positioner of claim 8, wherein the guide sleeves are classified into a plurality of categories according to their inner diameter sizes, and different categories of guide sleeves have the same outer diameter size and different inner diameter sizes.
10. The multi-angle threading needle positioner of claim 1, wherein the locking member is a locking bolt screwed into a threaded hole of the first slider, and a head end of the locking bolt is in interference with the rail of the arc-shaped guide rail during operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111053243.8A CN113712657B (en) | 2021-09-09 | 2021-09-09 | Multi-angle needle threading positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111053243.8A CN113712657B (en) | 2021-09-09 | 2021-09-09 | Multi-angle needle threading positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113712657A true CN113712657A (en) | 2021-11-30 |
| CN113712657B CN113712657B (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111053243.8A Active CN113712657B (en) | 2021-09-09 | 2021-09-09 | Multi-angle needle threading positioner |
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Cited By (1)
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| CN115055618A (en) * | 2022-08-17 | 2022-09-16 | 中亿腾模塑科技（苏州）有限公司 | Intelligent machining equipment for mold ejector pins |
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| CN106562819A (en) * | 2016-11-15 | 2017-04-19 | 河北医科大学第三医院 | Guiding apparatus used for minimally invasive surgery of orthopedics department |
| CN110141354A (en) * | 2019-06-19 | 2019-08-20 | 青岛大学附属医院 | A kind of Kirschner wire guider and its application method based on pediatric Orthopaedics operative treatment |
| CN211485152U (en) * | 2019-11-13 | 2020-09-15 | 邳州市鑫盛创业投资有限公司 | Positioning device for bone joint postoperation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115055618A (en) * | 2022-08-17 | 2022-09-16 | 中亿腾模塑科技（苏州）有限公司 | Intelligent machining equipment for mold ejector pins |
| CN115055618B (en) * | 2022-08-17 | 2022-11-15 | 中亿腾模塑科技（苏州）有限公司 | Intelligent machining equipment for mold ejector pins |
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| CN113712657B (en) | 2023-05-05 |
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