CN111481260B - Angle guide and use method thereof - Google Patents
Angle guide and use method thereof Download PDFInfo
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- CN111481260B CN111481260B CN202010483669.6A CN202010483669A CN111481260B CN 111481260 B CN111481260 B CN 111481260B CN 202010483669 A CN202010483669 A CN 202010483669A CN 111481260 B CN111481260 B CN 111481260B
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- 238000000034 method Methods 0.000 title description 11
- 210000002421 cell wall Anatomy 0.000 claims 1
- 210000002303 tibia Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses an angle guider, which comprises a guide adjusting bracket and two angle positioning components, wherein the guide adjusting bracket is of a U-shaped structure, a first vertical part of the guide adjusting bracket is fixedly connected with the angle positioning component, a second vertical part of the guide adjusting bracket is provided with a vertical chute, the other angle positioning component can slide in the chute and can be fixed in the chute, the angle positioning components comprise guide rods, an index plate and a shell, the guide rods and the index plate are all arranged in the shell, a button vertical to the guide rods is fixedly arranged in the guide rods, an angle marking line is arranged on the guide rods, the index plate is coaxial with the button and is in rotary connection, a datum line is arranged on the index plate and equally divided into a plurality of parts, the index plate can be fixedly connected with the guide rods, the index plate is fixedly connected with the shell, and the shell can be fixed in the first vertical part and the chute. The invention can ensure the accuracy of guiding and positioning and can obtain an accurate guiding angle.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an angle guider and a using method thereof.
Background
In HTO (tibial high osteotomy) procedures, the angular positioning of the wedge-shaped osteotomy is critical to correct the effect of subsidence inside the knee, while the lead-out point outside the tibial plateau requires that the lead-out point be at least 3mm from the tibial plateau, otherwise the fixation effect will be affected. The angle guide used at present cannot accurately determine the angle, and the position must be determined by depending on the hand feeling of a doctor or perspective after driving in a guide needle. In addition, the accuracy of the guide depends on the structural design and the machining precision of the instrument, and when the machining precision cannot meet the requirement or the instrument deforms due to extrusion collision in the transportation/storage process, the guide needle cannot be driven into the guide needle sleeve on the opposite side according to the preset direction and cannot reach the preset tip position; and when the instrument tip position deviates from the center of the arc, the read guiding angle gives a wrong guiding result.
Disclosure of Invention
The invention aims to provide an angle guider and a using method thereof, which are used for solving the problems of the prior art, ensuring the accuracy of guiding and positioning and obtaining an accurate guiding angle.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides an angle guider, which comprises a guide adjusting bracket and two angle positioning components, wherein the guide adjusting bracket is of a U-shaped structure, a first vertical part of the guide adjusting bracket is fixedly connected with the angle positioning component, a second vertical part of the guide adjusting bracket is provided with a vertical chute, the other angle positioning component can slide in the chute and can be fixed in the chute, the angle positioning components comprise guide rods, an index plate and a shell, the guide rods and the index plate are arranged in the shell, a button which is perpendicular to the guide rods is fixedly arranged in the guide rods, an angle marking line is arranged on the guide rods, the index plate is coaxially and rotatably connected with the button, a datum line is arranged on the index plate and is equally divided into a plurality of parts, the guide rods can be fixed, the index plate is fixedly connected with the shell, and the shell can be fixed in the first vertical part and the chute.
Preferably, the guiding adjusting support comprises a left L-shaped adjusting rod and a right L-shaped adjusting rod, the first vertical part is a part of the left L-shaped adjusting rod, the second vertical part is a part of the right L-shaped adjusting rod, the horizontal part of the left L-shaped adjusting rod is provided with a long guide rod, the horizontal part of the right L-shaped adjusting rod is of a hollow structure, and the horizontal part of the right L-shaped adjusting rod is slidably sleeved on the long guide rod.
Preferably, a horizontal bar-shaped groove is formed in the long guide rod, a first threaded hole is formed in the right L-shaped adjusting rod, and the right L-shaped adjusting rod can be fixed in the bar-shaped groove by means of a first locking screw through the first threaded hole.
Preferably, the shell comprises a first shell cover and a second shell cover which are fixedly connected, the guide rod and the dividing disc are arranged between the first shell cover and the second shell cover, a through hole for one end of the button to pass through is formed in the first shell cover, a spring is sleeved at the other end of the button, one end of the spring is abutted against the guide rod, the other end of the spring is abutted against an inner groove in the second shell cover, a second threaded hole is formed in the end part of the second shell cover, and the second shell cover is fixed on the first vertical part by utilizing a second locking screw to pass through the second threaded hole.
Preferably, a plurality of grooves are uniformly distributed on the circumference of the side wall of the dividing plate, the number of the grooves is the same as the number of the bisectors of the dividing plate, a fixed groove is formed in one side wall of the guide rod, which is close to the dividing plate, of the guide rod, limiting protrusions are arranged on the groove wall of the fixed groove, and the limiting protrusions are matched with the grooves.
Preferably, the lower end of the first vertical portion is provided with two parallel first fixing plates, a distance for the outer shell of the angle positioning assembly to pass through is reserved between the two first fixing plates, the first fixing plates are provided with first positioning grooves which penetrate through, the button of the angle positioning assembly penetrates through one of the first positioning grooves, and the outer shell of the angle positioning assembly is fixed at the other first positioning groove.
Preferably, the lower end of the second vertical portion is provided with two parallel second fixing plates, the sliding groove is formed between the two second fixing plates, the outer shell of the other angle positioning assembly is slidably arranged in the sliding groove, the second fixing plates are provided with second positioning grooves which penetrate through, the button of the other angle positioning assembly penetrates through one of the second positioning grooves, and the outer shell of the other angle positioning assembly is fixed at the other second positioning groove.
Preferably, the top end of the guide rod is provided with a plurality of raised tips.
The invention also provides a use method of the angle guider, which comprises the following steps:
S1, placing two ends of an angle guider on two sides of a tibial platform to be osteotomy, enabling tooth tips of a guide rod in the angle positioning assembly at the first vertical part to prop against a selected position on the outer side of the tibial platform, wherein the datum line and the angle marking line are overlapped and are perpendicular to the axis of the tibial platform;
S2, adjusting the guide adjusting bracket to enable the tooth tip of the guide rod in the angle positioning assembly at the second vertical part to prop against the inner side of the tibia platform, locking the guide adjusting bracket, and recording the width of the guide adjusting bracket at the moment;
S3, releasing the guide adjusting bracket, moving out of the angle guider, rotating the guide rod of the angle positioning assembly at the first vertical part to a required osteotomy angle, and rotating the guide rod of the angle positioning assembly at the second vertical part by an opposite angle;
s4, moving the angle positioning assembly at the second vertical part up and down, and inserting guide pins into the guide holes of the guide rods so that the axes of the two guide rods are positioned on the same straight line;
S5, removing the guide pin, placing the two ends of the angle guider on the two sides of the tibia platform again, propping the tooth tips of the guide rods in the angle positioning assembly at the first vertical part against the selected position on the outer side of the tibia platform, adjusting the width recorded in the S2 from the guide adjusting bracket to the guide adjusting bracket, and locking the guide adjusting bracket so as to finish angle guiding when the tibia platform cuts bones.
Compared with the prior art, the invention has the following technical effects:
when the invention is applied, the angle adjustment is realized by rotating the guide rod, the degree of the angle adjustment is determined by the index plate in the angle guide assembly, the control of the adjustment precision is realized by changing the equal fraction of the index plate, so that the accuracy of guide positioning is ensured, the adjustment angle is obtained by utilizing the relative deflection angle between the guide rod and the index plate, the accuracy of the guide of the osteotomy angle is ensured, and the osteotomy can be conveniently and well carried out at the preset tip position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an angular positioning assembly according to the present invention;
FIG. 2 is an exploded view of the angular positioning assembly of the present invention;
FIG. 3 is a schematic view of the angle guide of the present invention;
FIG. 4 is a schematic view of the angle guide of the present invention after being rotated by a certain angle
FIG. 5 is a schematic view of the use of the angle guide of the present invention;
Wherein: 101-left L-shaped adjusting rod, 102-right L-shaped adjusting rod, 103-first locking screw, 201-guide rod, 202-first housing cover, 203-second housing cover, 204-index plate, 205-button, 206-spring, 207-second locking screw.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1
As shown in fig. 1-4: the embodiment provides an angle guider, including direction regulation support and two angle positioning components, the structure of direction regulation support is U type structure, first perpendicular portion fixed connection angle positioning component of direction regulation support, the second perpendicular portion of direction regulation support is provided with vertical spout, another angle positioning component can slide in the spout and can fix in the spout, angle positioning component all includes guide bar 201, graduated disk 204 and shell, guide bar 201 and graduated disk 204 all set up the inside at the shell, the top department of guide bar 201 all is provided with a plurality of bellied top, help fixed stability, the fixed button 205 that is provided with perpendicular to guide bar 201 in the guide bar 201, be provided with the angle marking line on the guide bar 201, graduated disk 204 and button 205 coaxial and swivelling joint, be provided with the datum line on the graduated disk 204 and equally divide into a plurality of portions, graduated disk 204 can be fixed with guide bar 201, graduated disk 204 and shell fixed connection, the shell can be fixed in first perpendicular portion and spout. One angle positioning component is fixed on the first vertical part, after the angle of the guide rod 201 is adjusted, the other angle positioning component slides and is positioned in the chute, and the corresponding angles are rotated, namely the rotation angles of the guide rods 201 in the two angle positioning components relative to the index plate 204 are the same, so that the axes of the two guide rods 201 are positioned on the same straight line, as shown in fig. 4, to ensure the accuracy of the guide of the osteotomy angle, and the osteotomy can be conveniently and well achieved to the preset tip position.
Specifically, the guiding adjustment bracket comprises a left L-shaped adjustment rod 101 and a right L-shaped adjustment rod 102, a first vertical part is a part of the left L-shaped adjustment rod 101, a second vertical part is a part of the right L-shaped adjustment rod 102, a horizontal part of the left L-shaped adjustment rod 101 is provided with a long guide rod, a horizontal part of the right L-shaped adjustment rod 102 is of a hollow structure, and a horizontal part of the right L-shaped adjustment rod 102 is slidably sleeved on the long guide rod. The long guide rod is provided with a horizontal bar-shaped groove, the right L-shaped adjusting rod 102 is provided with a first threaded hole, and the right L-shaped adjusting rod 102 can be fixed in the bar-shaped groove through the first threaded hole by using a first locking screw 103. According to the difference of patient, adjust the length that long guide arm stretched into the horizontal part of right L type regulation pole 102, adjust the width of direction regulation support, guarantee that two angle positioning components that set up about can both be with good contact of patient.
The shell includes fixed connection's first shell cover 202 and second shell cover 203, guide bar 201 and graduated disk 204 all set up between first shell cover 202 and second shell cover 203, set up the through-hole that supplies button 205 one end to pass on the first shell cover 202, the other pot head of button 205 is equipped with spring 206, the one end of spring 206 is contradicted on guide bar 201, the other end of spring 206 is contradicted in the inner groovy on the second shell cover 203, and the length that the other end of button 205 was worn out guide bar 201 (i.e. the length of button 205 that is located one side of second shell cover 20) is less than the length of spring 206, the second screw hole has been seted up to the tip of second shell cover 203, second shell cover 203 utilizes second locking screw 207 to pass the second screw hole and fix on first vertical portion or second vertical portion. A plurality of grooves are uniformly distributed on the circumference of the side wall of the dividing plate 204, the number of the grooves is the same as the number of the bisectors of the dividing plate 204, a fixed groove is formed in one side wall, close to the dividing plate 204, of the guide rod 201, and a limiting protrusion is arranged on the groove wall of the fixed groove and is matched with the grooves. Specifically, the index plate 204 is fixed with the first housing cover 202, one end of the button 205 sequentially passes through the index plate 204 and the first housing cover 202 and extends to the outside, the other end of the button 205 is fixedly connected with the second housing cover 203 through the spring 206, under the action of the elastic force of the spring 206, the index plate 204 is embedded in the fixed groove, the groove on the index plate 204 is exactly matched with the limit protrusion, so that the guide rod 201 is fixed, the guide rod 201 is prevented from rotating, when the button 205 is pressed, the guide rod 201 moves towards the second housing cover 203, the index plate 204 is separated from the guide rod 201, after the guide rod 201 is rotated to a proper angle, the button 205 is released, the thrust of the spring 206 of the guide rod 201 is acted on the index plate 204 again, and meanwhile, the limit protrusion on the guide rod 201 is embedded in the groove on the index plate 204 to fix the guide rod 201, so that the adjusting angle is fixed.
In this embodiment, the lower end of the first vertical portion is set to two parallel first fixing plates, a space for the housing of the angle positioning component to pass through is reserved between the two first fixing plates, the first fixing plates are all provided with first positioning slots that pass through, the button 205 of the angle positioning component passes through one first positioning slot, and the housing of the angle positioning component is fixed at the other first positioning slot. The housing is moved between the two first fixing plates to a proper position and is screwed into the second screw hole through the first positioning groove by means of the second locking screw 207.
In this embodiment, the lower end of the second vertical portion is set to two parallel second fixing plates, a chute is formed between the two second fixing plates, the housing of the other angular positioning component is slidably disposed in the chute, the second fixing plates are all provided with second positioning slots penetrating through, the button 205 of the other angular positioning component penetrates through one second positioning slot, and the housing of the other angular positioning component is fixed at the other second positioning slot. The housing is moved between the two second fixing plates to a proper position and is screwed into the second screw hole through the first positioning groove by means of the second locking screw 207.
Example two
As shown in fig. 5, the present embodiment further provides a method for using the angle guide, specifically, the angle guide in the first embodiment is applied, and the method includes the following steps:
S1, placing two ends of an angle guider on two sides of a tibial platform to be osteotomized, enabling tooth tips of a guide rod 201 in an angle positioning assembly at a first vertical part to prop against selected positions on the outer side of the tibial platform, and enabling a datum line and an angle marking line to coincide and be perpendicular to the axis of the tibial platform;
S2, adjusting the guide adjusting bracket to enable the tooth tip of the guide rod 201 in the angle positioning assembly at the second vertical part to prop against the inner side of the tibia platform, locking the guide adjusting bracket, and recording the width of the guide adjusting bracket at the moment; specifically, the length of a long guide rod extending into the horizontal part of the right L-shaped adjusting rod 102 is recorded;
s3, releasing the guide adjusting bracket and removing the angle guide, namely screwing the first locking screw 103, pulling out the long guide rod from the horizontal part of the right L-shaped adjusting rod 102 for a certain length, removing the angle guide, rotating the guide rod 201 of the angle positioning assembly at the first vertical part to a required osteotomy angle (specifically, according to the operation requirement, for example, 5 degrees), and rotating the guide rod 201 of the angle positioning assembly at the second vertical part for an opposite angle (-5 degrees);
S4, moving the angle positioning assembly at the second vertical part up and down, and inserting a guide pin into a guide hole of the guide rod 201, wherein the guide hole is a central hole coaxially arranged with the guide rod 201, so that the axes of the two guide rods 201 are positioned on the same straight line, and the guide pin can pass through the two guide holes;
S5, removing the guide pin, placing the two ends of the angle guider on the two sides of the tibial plateau again, propping the tooth tip of the guide rod 201 in the angle positioning assembly at the first vertical part against the selected position outside the tibial plateau, adjusting the guide adjusting bracket to the width recorded in S2, and locking the guide adjusting bracket so as to complete the angle guiding during the osteotomy of the tibial plateau.
Compared with the traditional method, the embodiment can determine the degree of angle adjustment through the index plate 204, can realize the control of adjustment precision through changing the equal fraction of the index plate 204, thereby ensuring the accuracy of guiding and positioning, and utilizes the relative deflection between the guide rod 201 at the left L-shaped adjusting rod 101 and the index plate 204 for a certain angle, then rotates the guide rod 201 at the right L-shaped adjusting rod 102 for a reverse angle relative to the index plate 204, and moves the angle positioning component at the L-shaped adjusting rod to enable the axes of the two guide holes to be positioned on the same straight line, thereby being capable of achieving accurate guiding angle and ensuring the accuracy of guiding the osteotomy angle, so as to be convenient for better reaching the preset tip position and smoothly performing the osteotomy.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (5)
1. An angle director, characterized by: the device comprises a guide adjusting bracket and two angle positioning components, wherein the guide adjusting bracket is of a U-shaped structure, a first vertical part of the guide adjusting bracket is fixedly connected with the angle positioning component, a second vertical part of the guide adjusting bracket is provided with a vertical chute, the other angle positioning component can slide in the chute and can be fixed in the chute, the angle positioning components comprise guide rods, an index plate and a shell, the guide rods and the index plate are all arranged in the shell, buttons perpendicular to the guide rods are fixedly arranged in the guide rods, angle marking lines are arranged on the guide rods, the index plate is coaxially and rotationally connected with the buttons, a datum line is arranged on the index plate and equally divided into a plurality of parts, the guide rods can be fixed, the index plate is fixedly connected with the shell, and the shell can be fixed in the first vertical part and the chute;
The guide adjusting bracket comprises a left L-shaped adjusting rod and a right L-shaped adjusting rod, the first vertical part is a part of the left L-shaped adjusting rod, the second vertical part is a part of the right L-shaped adjusting rod, the horizontal part of the left L-shaped adjusting rod is provided with a long guide rod, the horizontal part of the right L-shaped adjusting rod is of a hollow structure, and the horizontal part of the right L-shaped adjusting rod is sleeved on the long guide rod in a sliding way;
The shell comprises a first shell cover and a second shell cover which are fixedly connected, the guide rod and the index plate are arranged between the first shell cover and the second shell cover, a through hole for one end of the button to pass through is formed in the first shell cover, a spring is sleeved at the other end of the button, one end of the spring is abutted against the guide rod, the other end of the spring is abutted against an inner groove in the second shell cover, a second threaded hole is formed in the end part of the second shell cover, and the second shell cover is fixed on the first vertical part by utilizing a second locking screw to pass through the second threaded hole;
the circumference equipartition has a plurality of recesses on the lateral wall of graduated disk, the quantity of recess with the bisector quantity of graduated disk is the same, the guide bar be close to set up the fixed slot on the lateral wall of graduated disk, be provided with spacing arch on the cell wall of fixed slot, spacing arch with recess assorted.
2. The angle guide of claim 1, wherein: the long guide rod is provided with a horizontal bar-shaped groove, the right L-shaped adjusting rod is provided with a first threaded hole, and the right L-shaped adjusting rod can be fixed in the bar-shaped groove by using a first locking screw to penetrate through the first threaded hole.
3. The angle guide of claim 1, wherein: the lower extreme of first perpendicular portion sets up to two parallel first fixed plates, two leave between the first fixed plate and supply one the interval that the shell of angle positioning assembly passed, all seted up first constant head tank that runs through on the first fixed plate, one angle positioning assembly the button passes one first constant head tank, one angle positioning assembly the shell is fixed in another first constant head tank department.
4. An angle director as claimed in claim 3, wherein: the lower extreme of second perpendicular portion sets up to two parallel second fixed plates, two form between the second fixed plate the spout, another angle positioning component the shell slides and sets up in the spout, all seted up the second constant head tank that runs through on the second fixed plate, another angle positioning component the button passes one the second constant head tank, another angle positioning component the shell is fixed in another second constant head tank department.
5. The angle guide of claim 1, wherein: the top of guide bar department all is provided with a plurality of bellied top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483669.6A CN111481260B (en) | 2020-06-01 | 2020-06-01 | Angle guide and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483669.6A CN111481260B (en) | 2020-06-01 | 2020-06-01 | Angle guide and use method thereof |
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| Publication Number | Publication Date |
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| CN111481260A CN111481260A (en) | 2020-08-04 |
| CN111481260B true CN111481260B (en) | 2024-08-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212346649U (en) * | 2020-06-01 | 2021-01-15 | 北京瑞朗泰科医疗器械有限公司 | Angle guider |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2726177B1 (en) * | 1994-10-27 | 1997-03-28 | Impact | TIBIAL ANCILLARY INSTRUMENTATION |
| CN204260842U (en) * | 2014-11-24 | 2015-04-15 | 王晓猛 | A kind of positioner of total knee replacement Tibial osteotomy device |
| CN110464417B (en) * | 2019-08-22 | 2024-03-29 | 河北医科大学第三医院 | Drill guide for high-level tibia osteotomy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212346649U (en) * | 2020-06-01 | 2021-01-15 | 北京瑞朗泰科医疗器械有限公司 | Angle guider |
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