WO2016114558A1 - Structure à diamètre variable - Google Patents

Structure à diamètre variable Download PDF

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Publication number
WO2016114558A1
WO2016114558A1 PCT/KR2016/000301 KR2016000301W WO2016114558A1 WO 2016114558 A1 WO2016114558 A1 WO 2016114558A1 KR 2016000301 W KR2016000301 W KR 2016000301W WO 2016114558 A1 WO2016114558 A1 WO 2016114558A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt
variable diameter
extension
diameter
core
Prior art date
Application number
PCT/KR2016/000301
Other languages
English (en)
Korean (ko)
Inventor
김두만
이창우
김광원
Original Assignee
주식회사 케이씨스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 케이씨스 filed Critical 주식회사 케이씨스
Priority to JP2017556501A priority Critical patent/JP2018503487A/ja
Priority to US15/543,509 priority patent/US10130392B2/en
Priority to CN201680005846.1A priority patent/CN107427317A/zh
Priority claimed from KR1020160003471A external-priority patent/KR101861421B1/ko
Publication of WO2016114558A1 publication Critical patent/WO2016114558A1/fr

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Classifications

    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary pins, nails or other devices

Definitions

  • the present invention relates to a structure having a variable diameter, and more particularly, by increasing and decreasing the diameter in accordance with the direction of rotation of the screw can be inserted and fixed correspondingly even if the inserted diameter is formed relatively large and conversely easy to remove It relates to a structure having a variable diameter.
  • a separate connecting bracket is necessarily required to surround the outer diameter or be inserted into the inner diameter.
  • An object of the present invention has been proposed to improve the conventional characteristics as described above, by increasing and decreasing the diameter in accordance with the rotation direction of the screw so that even if the inserted diameter is formed relatively large can be inserted and fixed correspondingly It is to provide a structure having a variable diameter for easy removal.
  • the present invention has the following configuration to achieve the above object.
  • Structures having a variable diameter of the present invention the bolt extending along the longitudinal direction; A body disposed on one side of the bolt to surround the bolt; A core disposed along the longitudinal direction of the bolt; A plurality of extensions disposed radially outward of the core; And a plurality of shells surrounding the extension to correspond to the extension, wherein the extension extends to the outside by the core or contracts in the center direction according to the rotational direction of the bolt to vary the outer circumferential surface diameter.
  • the body is composed of a guide groove that is connected to the insertion hole and the extension side is inserted into the bolt is radially guided.
  • the core is composed of a cylinder with a threaded hole, a plurality of slots radially extending from the outer peripheral surface of the cylinder, and slot projections protruding in a direction facing each other between the slots to expand or contract the outer diameter of the extension. do.
  • the slot protrusions are arranged to be inclined outward in the axial direction of the bolt.
  • the extension has a constant length
  • the guide projection is formed at the longitudinal end
  • the slot is formed inclined at both sides in the longitudinal direction
  • the slot projection is sliding guide
  • the wedge groove recessed along the longitudinal direction at a position perpendicular to the slot
  • the wedge groove one side is composed of a wedge engaging projection formed narrow in the direction facing each other.
  • extension is formed relatively longer than the length of the core.
  • the sheaths are also arranged to overlap each other.
  • the bolt is further provided with a plurality of spacers for allowing the plurality of cores to be installed.
  • the cross-sectional shape is used to interconnect the structure having a constant size of the inner diameter in the form of a donut.
  • the diameter increases and decreases according to the rotational direction of the screw, so that even if the diameter to be inserted is formed relatively large, it can be inserted and fixed correspondingly.
  • nail for connecting the fractured bone.
  • FIG. 1 is an exploded perspective view showing a structure having a variable diameter of the present invention.
  • FIG. 2 is a perspective view showing the core and the extension shown in FIG.
  • FIG. 3 is a perspective view showing the extension and the shell shown in FIG.
  • FIG. 4 is a view showing a state provided with a spacer on a structure having a variable diameter according to the present invention.
  • 5 to 8 are views showing the operating state of the structure having a variable diameter according to the present invention.
  • first and / or second may be used to describe various components, but the components are not limited to the terms. The terms are only for the purpose of distinguishing one component from other components, for example, without departing from the scope of the rights according to the inventive concept, the first component may be called a second component, and For example, the second component may also be referred to as a first component.
  • the structure having a variable diameter of the present invention includes a body 110, a bolt 120, a core 130, an extension table 140, and an outer shell 150.
  • the body 110 is composed of an insertion groove 111 penetrating the cylindrical central axial direction, and guide grooves 112 formed at equal intervals along the circumference at one side axial end side, and the guide groove 112 is inside It has a tapered shape that increases in width in the direction.
  • the bolt 120 has a predetermined length and is formed with a trapezoidal thread on the outer peripheral surface.
  • the core 130 has a cylindrical body 131 having a threaded hole 132 and a length the same as that of the cylindrical body 131 so that the bolt 120 can be fastened in a central axial direction. And a plurality of slots 133 extending radially from an outer circumferential surface of the cylindrical body 131, slot protrusions 134 protruding from each other on the sides of the slots 133, and an extension table 140. It is composed of an insertion groove 135 formed between the slot 133.
  • the slot protrusion 134 is disposed to be inclined outward from the axial direction.
  • the extension 140 is inserted into the insertion groove 135 between the slot 133 to operate in the insertion groove 135, the slot 141 formed in an inclined shape on both sides in the longitudinal direction, both ends in the longitudinal direction Guide protrusions 142 formed in the projection, the wedge groove 143 recessed to a predetermined depth along the longitudinal direction of the upper surface, and the wedge locking projections 144 extending in a direction facing each other inside the wedge groove 143 It consists of).
  • the wedge engaging protrusion 144 is inclined outward from the bottom surface of the wedge groove 143, as shown in Figure 3b, the extension 140 is the upper surface 140a and the lower surface 140b ) Are each curved.
  • the outer shell 150 has a curved shape having a predetermined length as shown in FIG. 3A, and includes a wedge 155 protruding downward from the bottom surface 151.
  • the outer shell 150 has a lower overlapping surface 154 extending stepwise from the bottom surface 155 to one side, and the upper overlapping surface 153 is formed on the upper side of the lower overlapping surface 154 diagonally. It is formed stepwise with respect to the surface 152.
  • the outer skin is formed so that a plurality of superimpositions overlap each other to form the outermost part of the structure, so that the outer cover can be in close contact with the inserted structure while the overlapping amount changes as the outer diameter of the structure changes.
  • the plurality of extension tables 140 are positioned between the insertion grooves 135 of the core 130, and at the same time, the slot 141 is inserted into the slot protrusion 134, and the guide protrusion 142 is the body 110. To be inserted into the guide groove (112).
  • the extension 140 is to be arranged at equal intervals along the outer circumference of the core 130.
  • the wedge 155 of the outer shell 150 is inserted into the wedge groove 143 formed on the upper surface 140a of the extension 140 to press the wedge projection 144 to the wedge projection 144. (155) to be bound and bound;
  • the lower overlapping surface 154 of the outer jacket 150 is in a state that is overlaid on the upper overlapping surface 153 of the neighboring jacket so that the expansion and contraction of the extension 150 may be mutually performed. It can slide and maintain a cylindrical shape, thereby allowing it to be in close contact with the inner diameter of the structure.
  • the outer diameter of the body 110 and the inner side of the outer shell 150 may be disposed in a predetermined gap.
  • the slot protrusion 134 has a central portion with respect to the entire length L of the slot 141 so that a gap t is formed between the inner side of the outer shell 150 and the outer diameter of the body 110.
  • the core 130 moves forward or backward in the axial direction of the bolt 120 according to the rotational direction of the bolt 120, and the slot protrusion 134 of the core slides forward or backward along the slot 141.
  • the extension 140 connected to and contracted to the inside or enlarged to the contrary is made to easily cope with the inner diameter of the structure by making the diameter of the outermost outermost shell smaller or larger.
  • the slot protrusion 134 and the slot 141 are disposed to be inclined outward.
  • the expansion table 140 moves inwardly by the inclined slot protrusion 134 and the outer diameter "D" of the outer shell 150 connected to the expansion table 140 contracts to the outer diameter "D1".
  • the guide protrusion 142 of the extension 140 is inserted into the guide groove 112 of the body 110, the guide protrusion 142 is guided in the state of supporting the extension in a direction perpendicular to the axial direction.
  • the slot 141 is disposed obliquely as the core 130 is advanced along the bolt 120 is slid along the slot protrusion 134 and moved inward, and consequently the diameter of the outer shell shrinks.
  • the guide protrusion 142 of the extension 140 is inserted into the guide groove 112 of the body 110, the guide protrusion 142 is guided in the state of supporting the extension in a direction perpendicular to the axial direction.
  • the outer shells may be disposed to overlap each other, thereby preventing the formation of a gap in the outer diameter of the expanding or contracting and allowing the outer diameter to be in close contact with the inner diameter of the structure.
  • the outer diameter can be contracted and expanded, so that the cross-sectional shape is freely detachable due to the change in diameter when the donut-shaped pipe is connected or disassembled.
  • the nail (nail) used to connect the fractured bone in the surgical operation can prevent the impact caused to the bone during the insertion of the nail becomes effective surgery.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

La présente invention concerne une structure à diamètre variable, qui comprend : un boulon s'étendant le long de son sens longitudinal ; un corps disposé sur un côté du boulon de manière à entourer le boulon ; une partie centrale disposée le long du sens longitudinal du boulon ; une pluralité d'extensions disposées radialement à l'extérieur de la partie centrale ; et une pluralité d'enveloppes externes entourant les extensions de manière à correspondre aux extensions, les extensions étant étendues à l'extérieur ou contractées vers le centre par la partie centrale en fonction du sens de rotation du boulon, ce qui permet de modifier le diamètre de la surface périphérique externe.
PCT/KR2016/000301 2015-01-14 2016-01-12 Structure à diamètre variable WO2016114558A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017556501A JP2018503487A (ja) 2015-01-14 2016-01-12 可変直径を有する構造体
US15/543,509 US10130392B2 (en) 2015-01-14 2016-01-12 Structure having variable diameter
CN201680005846.1A CN107427317A (zh) 2015-01-14 2016-01-12 具有可变直径的结构体

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2015-0006757 2015-01-14
KR20150006757 2015-01-14
KR10-2016-0003471 2016-01-12
KR1020160003471A KR101861421B1 (ko) 2015-01-14 2016-01-12 가변 직경을 갖는 구조체

Publications (1)

Publication Number Publication Date
WO2016114558A1 true WO2016114558A1 (fr) 2016-07-21

Family

ID=56406053

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2016/000301 WO2016114558A1 (fr) 2015-01-14 2016-01-12 Structure à diamètre variable

Country Status (1)

Country Link
WO (1) WO2016114558A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114834329A (zh) * 2022-06-09 2022-08-02 扬州市高升机械有限公司 一种工程机械座椅智能自动调节的方法与装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736818B2 (en) * 1999-11-11 2004-05-18 Synthes (U.S.A.) Radially expandable intramedullary nail
US20080287951A1 (en) * 2007-03-22 2008-11-20 Stoneburner James D Segmented intramedullary structure
US7670339B2 (en) * 1998-10-26 2010-03-02 Expanding Orthopedics, Inc. Expandable orthopedic device
US8545499B2 (en) * 2009-09-28 2013-10-01 Zimmer, Inc. Expandable intramedullary rod
US8840612B2 (en) * 2012-05-04 2014-09-23 William L. Tontz Intraosseous expandable fixation device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7670339B2 (en) * 1998-10-26 2010-03-02 Expanding Orthopedics, Inc. Expandable orthopedic device
US6736818B2 (en) * 1999-11-11 2004-05-18 Synthes (U.S.A.) Radially expandable intramedullary nail
US20080287951A1 (en) * 2007-03-22 2008-11-20 Stoneburner James D Segmented intramedullary structure
US8545499B2 (en) * 2009-09-28 2013-10-01 Zimmer, Inc. Expandable intramedullary rod
US8840612B2 (en) * 2012-05-04 2014-09-23 William L. Tontz Intraosseous expandable fixation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114834329A (zh) * 2022-06-09 2022-08-02 扬州市高升机械有限公司 一种工程机械座椅智能自动调节的方法与装置
CN114834329B (zh) * 2022-06-09 2023-11-10 泰州市恒祥建筑装饰工程有限公司 一种工程机械座椅智能自动调节的方法与装置

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