CN113712657B - Multi-angle needle threading positioner - Google Patents
Multi-angle needle threading positioner Download PDFInfo
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- CN113712657B CN113712657B CN202111053243.8A CN202111053243A CN113712657B CN 113712657 B CN113712657 B CN 113712657B CN 202111053243 A CN202111053243 A CN 202111053243A CN 113712657 B CN113712657 B CN 113712657B
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 238000010862 gear shaping Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000002758 humerus Anatomy 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 241001227561 Valgus Species 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001788 irregular Effects 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration 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
- 230000009467 reduction 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, wherein 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 an arm of a patient stretching 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 patients.
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 fixing is a common internal fixing method, generally uses the Kirschner wire for fixing some unstable fracture, clinically has better effect for fixing short bones, irregular bones, adjacent joint fracture and trans-joint fixation, and 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 frequently caused and common, the traditional manual reduction and fixation of the small splint have difficult fixation, the fracture is easy to be displaced again, and the elbow varus and the elbow valgus deformity are easy to be concurrent in long term. In clinic, the infant humeral supracondylar fracture is fixed by adopting the cross Kirschner wire, but the needle insertion of the Kirschner wire usually depends on experience and hand feeling of an operator, the angle and the position of the needle insertion are difficult to grasp, the needle insertion deviation and repeated needle insertion are easy to be caused, the pain of a patient and the risk of damaging peripheral nerves and blood vessels at the fracture are increased, and secondary injury is caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the multi-angle needle penetrating positioner which 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 patients.
In order to achieve the above 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 a mounting seat provided with a guide channel, the guide channel penetrates through the mounting seat, the mounting seat is positioned in a U-shaped groove and hinged with 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 graduated 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 crossing manner, gear teeth are uniformly distributed on the circumferential direction of the disc to form a fluted disc, a gear shaping tooth and a first driving mechanism are arranged on the side face of the mounting seat, the tip of the gear shaping tooth is inserted into a tooth groove of the fluted disc, the tip of the gear shaping tooth is arranged into 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 graduated scale is arranged on the side face of the gear shaping tooth, and the calibration line extends along 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, wherein 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 an arm of a patient stretching into the lantern ring;
the mounting seat rotates around the pin shaft in the plane where the shaft section of the lantern ring is located, 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 axially extending slide of guide way, the slide is the blind hole, just the rectangular hole of intercommunication slide has been seted up to the side of mount pad, second slider, extension spring and plug are installed in proper order from inside to outside in the slide, second slider and slide sliding fit, plug and slide threaded connection, extension spring's both ends are contradicted with second slider and plug respectively, wherein, the downthehole sliding fit of rectangular 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 the gear shaping is provided with the anti-skidding line away from one side of mount pad.
Further, the second driving mechanism comprises a screw rod, a guide rod and a driving part for driving the screw rod to rotate, wherein the screw rod and the guide rod are arranged in parallel, two ends of the first clamping plate and the second clamping plate are respectively connected with screw sleeves arranged at two ends of the screw rod and sliding sleeves arranged at two ends of the guide rod, threads of the screw rod are opposite in rotation direction, two ends of the screw rod are respectively hinged with the lantern ring, and two ends of the guide rod are respectively connected with the lantern ring.
Further, the driving part includes a knob connected to one end of the screw.
Further, one side opposite to the first clamping plate and the second clamping plate is provided with an arc surface attached to the 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 surfaces, and the elastic thin plate is outwards bent to form an arc.
Further, still include the uide bushing, the uide bushing alternates in the direction passageway and both pass through threaded connection, the direction passageway is all stretched out at the both ends of uide bushing, just the one end that uide bushing and patient's arm contacted is the front end, and the one end that keeps away from the arm is the rear end, the side of rear end is provided with coaxial outer hexagonal.
Further, the tip is formed in a hemispherical shape.
Further, the guide sleeves are divided into a plurality of types according to the inner diameter sizes, and the guide sleeves of different types have the same outer diameter size and different inner diameter sizes.
Further, the retaining member is the locking bolt, the locking bolt closes the screw hole on first slider soon, during operation, the head end of locking bolt and the track conflict of arc guide rail.
Compared with the prior art, the orthopedic limb rehabilitation training bed provided by the invention has the advantages that the structure is distinctive, the operation is convenient, under the assistance of the perspective equipment, after the circumferential position of the mounting seat on the lantern ring is adjusted, the mounting seat is made to be positioned on one side of the arm to be penetrated by the Kirschner wire, the position of the mounting seat on the lantern ring is locked through the locking piece, then the mounting seat is adjusted to rotate around the pin shaft, the needle inlet angle of the guide channel is corrected, after the needle inlet angle is corrected, the locking needle inlet angle is realized by meshing of the gear shaping and the fluted disc, and then the Kirschner wire is penetrated along the guide channel through equipment such as an electric drill, and the like.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a multi-angle needle threading positioner.
Fig. 2 is a partial view of fig. 1 from a direction a.
Fig. 3 is a partial cross-sectional view of fig. 2.
Fig. 4 is an enlarged view of the assembly of the angle adjustment device and the arcuate guide rail of fig. 1.
In the figure: 1. arc guide rail 2, collar 3, turnbuckle 4, lead screw 5, first splint, 6, elastic sheet, 7, arm, 8, second splint, 9, knob 10, locking bolt 11, first slider, 12, disc, 13, gear shaping 14, guide sleeve, 15, mount, 16, round pin axle, 17, U-shaped groove, 18, sliding sleeve, 19, guide bar, 20, angle scale mark, 21, scale line, 22, telescopic spring, 23, slideway, 24, plug, 25, guide channel, 26, rectangular hole.
Detailed Description
The technical solutions 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 will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 4, as a multi-angle needle threading positioner according to a preferred embodiment of the present invention, the multi-angle needle threading positioner includes a guide channel 25 for controlling the drilling direction of the kirschner wire, and an angle adjusting device for adjusting the direction of the guide channel 25, wherein 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 condyle of the arm 7 humerus of a patient, and in practical application, the angle of the guide channel 25 is adjusted according to the affected part of the patient by using the angle adjusting device, so as to match the needle threading angle of the affected part of the patient, thereby ensuring accurate needle threading and high success rate;
in this embodiment, the angle adjusting device includes a mounting seat 15 provided with the above-mentioned guide channel 25, where the guide channel 25 penetrates through the mounting seat 15 to form a through hole, so that the kirschner wire is inserted, and the mounting seat 15 is mounted in the U-shaped groove 17, two sides of the mounting seat 15 are hinged with the side wall of the U-shaped groove 17 through a pin shaft 16, a disc 12 is disposed on the outer side of one side wall of the U-shaped groove 17, an angle scale is disposed on the side surface of the disc 12, the angle scale and the disc 12 are concentric, it is to be noted that the angle scale is limited in the prior art, and is specifically set as a common sense in the art, and is not repeated in detail, and the axis of the guide channel 25 and the axis of the pin shaft 16 are intersected and perpendicular, so that the rotation angles of the guide channel 25 and the mounting seat 15 are guaranteed to be consistent, and the gear teeth are uniformly distributed around the pin shaft 16, the gear disc is formed, the side surface of the mounting seat 15 is provided with a gear shaping tooth 13 and a first driving mechanism, the first driving mechanism is used for driving the tip end of the gear shaping tooth 13 to be inserted into a tooth socket of the gear disc, the tip end of the gear shaping tooth 13 is provided with a tooth shape matched with the tooth socket, in actual work, the gear shaping tooth 13 is meshed with the gear disc to realize the rotation limiting of the mounting seat 15 around the pin shaft 16, the side surface of the gear shaping tooth 13 is provided with a calibration line 21 which is parallel to the axis of the guide channel 25 and matched with an angle scale, the calibration line 21 extends along the radial direction of the gear disc, namely, after the calibration line 21 is aligned with the angle scale 20 on the gear disc (namely, is 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 (the inclination angle is relative to the arm 7 to be explained), the method is convenient and quick, the needle inserting 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 stretching into the lantern ring 2; the circumference of the lantern ring 2 is provided with an arc-shaped guide rail 1, 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 the 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 lantern ring 2 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, so that the lantern ring 2 is 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, so that the arm 7 is clamped, and an angle adjusting device and a guide channel 25 are mounted on the arm 7 of the patient, so that the angle adjusting device and the guide channel 25 are stably connected.
When the multi-angle needle threading locator provided by the invention is applied, under the assistance of perspective equipment, after 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 a 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, the needle inserting angle of the guide channel 25 is corrected, after the needle inserting angle is corrected, the locking needle inserting angle is realized by meshing the gear shaping 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, and the limit of the locking piece on the installation seat 15 can be released after the needle threading at the current position is completed, so that the multi-position needle threading can be completed after the locking piece rotates to the next needle threading position along the arc-shaped guide rail 1.
In practical application, the hinge joint of the side wall of the U-shaped groove 17 and the mounting seat 15 is set to be a circle coaxial with the pin 16, and the side wall of the mounting seat 15 is provided with a sinking table for accommodating the side wall of the U-shaped groove 17, and the contour of the sinking table is matched with the contour of the side wall, so that the side wall of the U-shaped groove 17 is flush with the side surface of the mounting seat 15.
On the basis of the embodiment, specifically, the first driving mechanism includes a slide 23 that is opened at the mounting seat 15 and extends along the axial direction of the guide channel 25, the slide 23 is a blind hole, and the side surface of the mounting seat 15 is opened with a strip hole 26 that communicates with the slide 23, the slide 23 is parallel to the strip hole 26, a second slider, a telescopic spring 22 and a screw 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 screw plug 24 is in threaded connection with the slide 23, two ends of the telescopic spring 22 are respectively in contact with the second slider and the screw plug 24, the screw plug 24 is positioned at one end of the mounting seat 15 far away from the fluted disc, and then the second slider is close to the fluted disc, wherein, a connecting rod is slidably matched in the strip hole 26, two ends of the connecting rod are respectively connected with the second slider and the gear shaping 13, during practical use, the telescopic spring 22 can be compressed by poking the gear shaping 13 towards the direction far away from the fluted disc, and the gear shaping 13 is separated from the tooth groove of the fluted disc, so that the limit of the mounting seat 15 is removed, and the mounting seat 15 can rotate around the pin 16 to adjust the penetration angle; after the angle of the guide channel 25 is adjusted, the gear shaping 13 is loosened, and the gear shaping 13 is meshed with the fluted disc again under the pushing of the telescopic spring 22 to complete locking.
On the basis of the above embodiment, preferably, the side surfaces of the gear shaping 13 and the mounting seat 15 are attached, so as to ensure the stability of the sliding process of the gear shaping 13, avoid shaking, and the side of the gear shaping 13 far away from the mounting seat 15 is provided with anti-skid patterns, so that the friction force between the fingers of the staff and the surface of the gear shaping 13 is enhanced, and the slipping is avoided.
On the basis of the embodiment, the second driving mechanism comprises a screw 4, a guide rod 19 and a driving part for driving the screw 4 to rotate, wherein the screw 4 and the guide rod 19 are arranged in parallel, two ends of the first clamping plate 5 and the second clamping plate 8 are respectively connected with a threaded sleeve 3 arranged at two ends of the screw 4 and a sliding sleeve 18 arranged at two ends of the guide rod 19, threads of the screw 4 are in opposite directions, two ends of the screw 4 are respectively hinged with the lantern ring 2, two ends of the guide rod 19 are respectively connected with the lantern ring 2, and in actual use, an arm 7 of a 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 be close to each other by rotating the screw 4 so as to clamp the arm 7; the circular arc guide rail is provided with a notch for the screw rod 4 to extend out of the collar 2, and more specifically, the driving part comprises a knob 9 connected to one end of the screw rod 4 extending out of the collar 2, and the driving part is manually screwed by a worker.
In order to achieve a better technical effect, one side opposite to the first clamping plate 5 and the second clamping plate 8 is provided with an arc surface which is attached to the arm 7, two ends of the arc surface are respectively provided with an elastic thin plate 6, two ends of the elastic thin plate 6 are respectively connected with the corresponding arc surfaces, the elastic thin plate 6 is outwards bent to form an arc shape, when the first clamping plate 5 and the second clamping plate 8 are in contact with the arm 7 of a patient in actual work, the elastic thin plate 6 is also in contact with the arm 7, and elastic deformation occurs after the elastic thin plate 6 is in contact with the arm 7 of the patient, so that the contact area with the arm 7 of the patient is increased, and the connection stability of the first clamping plate 5 and the second clamping plate 8 with the arm 7 is further enhanced; in addition, since the arm 7 has a nearly circular cross section, the elastic sheet 6 contacts the side surface of the arm 7, and the loop 2 is prevented from swinging circumferentially during the needle threading process, which may cause dislocation of the needle.
On the basis of the embodiment, the device further comprises a guide sleeve 14, wherein the guide sleeve 14 is inserted into the guide channel 25 and is connected with the guide channel 25 through threads, both ends of the guide sleeve 14 extend out of the guide channel 25, one end, which is contacted with the arm 7 of a patient, of the guide sleeve 14 is the front end, the end, which is far away from the arm 7, of the guide sleeve is the rear end, the side surface of the rear end is provided with a coaxial outer hexagon, and when the device works, the guide sleeve 14 is screwed through the outer hexagon so that the front end of the guide sleeve 14 is in contact with the surface of the patient, the stability of the sleeve ring 2 is improved by utilizing the stability of a triangle, and the Kirschner wire is further guided into an affected part through the guide sleeve 14, so that sliding dislocation of the Kirschner wire is avoided;
in addition, when in use, the front end of the guide sleeve 14 can be utilized to contact the affected part in advance according to the condition of the operation scheme so as to accurately position the needle threading position, then the position of the lantern ring 2 on the arm 7 of the patient is adjusted, and then the mounting seat 15 is passively rotated, so that the needle threading angle is adjusted, the accurate positioning of the needle threading position is ensured, the needle threading angle is accurately controlled, and the treatment effect is improved.
Preferably, the front end is provided as a hemisphere, avoiding the presence of a tip scratching the patient's arm 7.
On the basis of the embodiment, the guide sleeve 14 is divided into a plurality of types according to the inner diameter sizes, the outer diameter sizes of the guide sleeves 14 of different types are the same, and the inner diameter sizes are different, so that the inner diameters are adapted to the Kirschner wires with different thicknesses, and when the Kirschner wires with different thicknesses are used for different patients, the adapted guide sleeve 14 is replaced, so that the universality is strong; and in production, other sizes are inconvenient, only the size of the rotary hole is changed, and the processing production efficiency is greatly improved.
On the basis of the embodiment, the locking member is a locking bolt 10, the locking bolt 10 is screwed into a threaded hole on the first slider 11, and in operation, the locking bolt 10 is screwed so that the head end of the locking bolt 10 is abutted against the track of the arc-shaped guide rail 1, namely, the locking is realized.
Finally, it is further noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer 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 (7)
1. The 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 a mounting seat provided with a guide channel, the guide channel penetrates through the mounting seat, the mounting seat is positioned in a U-shaped groove and hinged with 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 graduated 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 crossing manner, gear teeth are uniformly distributed on the circumferential direction of the disc to form a fluted disc, a gear shaping tooth and a first driving mechanism are arranged on the side face of the mounting seat, the tip of the gear shaping tooth is inserted into a tooth groove of the fluted disc, the tip of the gear shaping tooth is arranged into 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 graduated scale is arranged on the side face of the gear shaping tooth, and the calibration line extends along 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, wherein 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 an arm of a patient stretching into the lantern ring;
the mounting seat rotates around the pin shaft in a plane where the shaft section of the lantern ring is located, and the locking piece is used for locking the position of the U-shaped groove on the arc-shaped guide rail;
the first driving mechanism comprises a slideway which is arranged on the mounting seat and extends along the axial direction of the guide channel, the slideway is a blind hole, the side surface of the mounting seat is provided with a strip hole which is communicated with the slideway, a second sliding block, a telescopic spring and a screw plug are sequentially arranged in the slideway from inside to outside, the second sliding block is in sliding fit with the slideway, the screw plug is in threaded connection with the slideway, two ends of the telescopic spring are respectively in interference with the second sliding block and the screw plug, a connecting rod is in sliding fit in the strip hole, and two ends of the connecting rod are respectively connected with the second sliding block and the gear shaping;
the novel medical device comprises a patient, and is characterized by further comprising a guide sleeve, wherein the guide sleeve is inserted into the guide channel and is connected with the guide channel through threads, both ends of the guide sleeve extend out of the guide channel, one end, which is contacted with the arm of the patient, of the guide sleeve is a front end, one end, which is far away from the arm, of the guide sleeve is a rear end, a coaxial outer hexagon is arranged on the side face of the rear end, and the front end is a hemispherical shape.
2. The multi-angle needle passing locator according to claim 1, wherein the gear shaping is attached to a side surface of the mounting base, and a side of the gear shaping away from the mounting base is provided with anti-slip patterns.
3. The multi-angle needle threading positioner according to claim 1, wherein the second driving mechanism comprises a screw rod, a guide rod and a driving part for driving the screw rod to rotate, two ends of the first clamping plate and the second clamping plate are respectively connected with screw sleeves arranged at two ends of the screw rod and sliding sleeves arranged at two ends of the guide rod, threads of the screw rod are in opposite directions, two ends of the screw rod are respectively hinged with the lantern ring, and two ends of the guide rod are respectively connected with the lantern ring.
4. The multi-angle needle passing locator according to claim 3, wherein the driving part includes a knob connected to one end of the screw.
5. The multi-angle needle threading locator of claim 4 wherein opposite sides between the first and second clamping plates are provided with cambered surfaces attached to arms, two ends of the cambered surfaces are respectively provided with an elastic sheet, two ends of the elastic sheet are respectively connected with the corresponding cambered surfaces, and the elastic sheet is outwards bent to form an arc shape.
6. The multi-angle needle passing locator according to claim 1, wherein the guide sleeves are classified into a plurality of types according to an inner diameter size thereof, and the guide sleeves of different types have the same outer diameter size and different inner diameter sizes.
7. The multi-angle needle passing locator according to claim 1, wherein the locking member is a locking bolt, the locking bolt is screwed into a threaded hole on the first slider, and in operation, a head end of the locking bolt abuts against a track of the arc-shaped guide rail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111053243.8A CN113712657B (en) | 2021-09-09 | 2021-09-09 | Multi-angle needle threading positioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111053243.8A CN113712657B (en) | 2021-09-09 | 2021-09-09 | Multi-angle needle threading positioner |
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| CN113712657A CN113712657A (en) | 2021-11-30 |
| CN113712657B true CN113712657B (en) | 2023-05-05 |
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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 |
| CN213641151U (en) * | 2020-03-23 | 2021-07-09 | 蒋维利 | Guiding device of Kirschner wire |
| CN111603255A (en) * | 2020-05-11 | 2020-09-01 | 王鹤 | Clinical centre gripping of obstetrical department expands and props device |
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2021
- 2021-09-09 CN CN202111053243.8A patent/CN113712657B/en active Active
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