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WO2009018720A1 - Fraise à os électrique - Google Patents

Fraise à os électrique Download PDF

Info

Publication number
WO2009018720A1
WO2009018720A1 PCT/CN2008/001431 CN2008001431W WO2009018720A1 WO 2009018720 A1 WO2009018720 A1 WO 2009018720A1 CN 2008001431 W CN2008001431 W CN 2008001431W WO 2009018720 A1 WO2009018720 A1 WO 2009018720A1
Authority
WO
WIPO (PCT)
Prior art keywords
chain
guide plate
handle
electric bone
piece
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2008/001431
Other languages
English (en)
Chinese (zh)
Inventor
Ximing Zhou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Montagne Medical Device Co Ltd
Original Assignee
Beijing Montagne Medical Device Co Ltd
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 Beijing Montagne Medical Device Co Ltd filed Critical Beijing Montagne Medical Device Co Ltd
Publication of WO2009018720A1 publication Critical patent/WO2009018720A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/14—Surgical saws
    • A61B17/149—Chain, wire or band saws

Definitions

  • the invention relates to an orthopedic bone knife, in particular to an orthopedic electric bone knife. Background technique
  • An electric bone knife of the prior art as described in U.S. Patent No. 6,113,618, includes a saw blade and a handle, a front end of the handle is mounted with a joint, and the joint is connected to the saw blade, and the joint is swingable back and forth about a central axis perpendicular to the longitudinal axis of the rear of the handle.
  • This electric bone knife can only be swung and cut in one direction, and it cannot flexibly change the direction of cutting.
  • the electric bone knife has a large volume and a large cutting operation area.
  • the technical problem to be solved by the present invention is to provide an electric bone knife capable of controlling the cutting direction, flexible in use, small in size, and small in cutting area.
  • the electric bone knife of the invention comprises a blade and a handle, the blade is mounted on the handle, the blade comprises an endless chain and a guide plate, the circulation chain is mounted on the outer circumference of the guide plate, the circulation chain comprises a tooth edge and a chain piece, and the chain piece is adjacent to the chain piece The tooth edge, the motor is installed in the handle, and the motor drives the circulation chain to move along the outer circumference of the guide.
  • the tooth edges are designed to have different shapes for convenient cutting, such as crescent-shaped double teeth, single triangular teeth and multi-triangular teeth, etc., and the number of teeth on each tooth edge can be a single , two or more.
  • Each of the tooth edges may also include two separate teeth that are inclined in opposite directions in a lateral direction relative to the direction of movement of the tooth edges.
  • the outer circumference of the guide plate is provided with a groove, and the lower end of the tooth edge is inserted in the groove.
  • the links between adjacent tooth edges are a two-piece outer connection or a single-piece outer connection, and the single-piece outer connections are on the same side or spaced apart sides.
  • the outer periphery of the guide plate is provided with a protrusion, and the lower end of the tooth edge is double-layered and spans the outer peripheral protrusion of the guide plate. Chain connection between all adjacent tooth edges Connected as a single-chip connection.
  • a sprocket is disposed at a front end of the handle, and the sprocket is mounted on the transmission shaft, and the blade and the circulation chain bypass the sprocket.
  • the motor output shaft is coupled to a drive gear that meshes with a driven gear on the drive shaft.
  • the electric bone knife of the invention is driven by a micro motor, and the driving gear drives the driven gear to move.
  • the sprocket on the transmission shaft drives the blade and the circulation chain to move around the outer circumference of the guide plate.
  • the electric bone knife of the invention can flexibly convert the cutting angle, has a small cutting operation area, is convenient for orthopedic slitting, and effectively replaces the osteotome, and the electric bone knife is small in size and convenient to use.
  • Figure 1 is a schematic view of an electric bone knife of the present invention
  • Figure 2 is a cross-sectional view of the electric bone knife of the present invention.
  • Figure 3 is a schematic view of a blade of a first embodiment of the electric bone knife of the present invention
  • Figure 4 is a schematic view of a guide plate of the first embodiment of the electric bone knife of the present invention
  • Figure 5 is a second embodiment of the electric bone knife of the present invention
  • Figure 6a to 6d are schematic views of several tooth edges of the electric bone knife of the present invention, wherein the left side is a front view of the tooth edge, and the right side is the AA cross-sectional view of the corresponding tooth edge, respectively.
  • 6a and 6b show two exemplary tooth edges in accordance with a first embodiment of the present invention
  • Figs. 6c and 6d show two exemplary tooth edges in accordance with a second embodiment of the present invention;
  • Figure 7 is a schematic illustration of two exemplary chains of an electric bone knife that can be used in the present invention.
  • FIG. 8a to 8d show the connection relationship between the chain and the tooth edge of the electric bone knife of the present invention, wherein Fig. 8a shows the double piece outer connection of the chain, and Fig. 8b shows the outer connection of the same side of the chain piece, Figure 8c shows the monolithic outer connection of the spacers on the opposite sides, and Figure 8d shows the intra-piece connection of the links.
  • the electric bone knife of the present invention includes a blade 2 and a handle 1, and the blade 2 is mounted on the handle 1.
  • the blade 2 includes an endless chain and a guide 5, as shown in FIG.
  • the endless chain is mounted on the outer circumference of the guide 5, and the endless chain includes the tooth edge 3 and the link 4, and Fig. 7 shows the chain of the electric bone cutter of the present invention.
  • the teeth on the tooth edge 3 may be single or multiple.
  • the motor 6 is mounted in the handle 1, and the motor 6 can drive the circulation chain to move along the outer circumference of the guide plate 5 through the transmission.
  • the front end of the handle 1 is provided with a sprocket 8 on which the sprocket 8 is mounted.
  • the endless chain of the blade 2 bypasses the sprocket 8.
  • the drive gear 10 of the motor 6 meshes with the driven gear 9 of the drive shaft 7.
  • the electric bone cutter is driven by the motor 6, and the driving gear 10 drives the driven gear 9 to move.
  • the sprocket 8 on the transmission shaft 7 drives the circulating chain of the blade 2 to move around the outer circumference of the guide 5.
  • the outer periphery of the guide plate 5 is provided with a groove, and the lower end of the tooth edge 3 is inserted into the groove and is slidable in the groove.
  • the chain piece 4 and the tooth edge 3 may be connected by a double piece of the outer piece of the chain, a single piece of the outer side of the same side of the chain or a single piece of the outer side of the spaced side.
  • the teeth of the tooth edge 3 may be crescent-shaped double teeth.
  • the teeth of the toothed edge 3 can also take any other form known in the art.
  • the outer periphery of the guide plate 5 is provided with a projection, and the lower end of the tooth edge 3 has a double-layered open structure and straddles the projection of the outer periphery of the guide plate 5.
  • the link 4 is connected to the adjacent tooth edge 3 by a single piece internal connection, as shown in Fig. 8d.
  • the teeth of the tooth edge 3 may be a plurality of triangular teeth, as shown in Fig. 6b, or may have shapes as shown in Figs. 6a, 6c and 6d. Wherein, as shown in Fig.
  • each of the tooth edges 3 includes two separate teeth which are inclined in opposite directions in a lateral direction with respect to the direction of movement of the tooth edges.
  • the teeth of the toothed edge 3 can also take any other form known in the art.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Dentistry (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Knives (AREA)
  • Sawing (AREA)

Abstract

L'objet de la présente invention concerne une fraise à os électrique qui comprend une lame coupante (2) et une poignée (1). La lame coupante (2) est montée sur la poignée (1), et ladite lame coupante (2) comprend une chaîne sans fin et une plaque-guide (5). La chaîne sans fin est montée sur la périphérie de la plaque-guide (5) et se compose de tranchants de dents (3) et de maillons de chaîne (4), destinés à relier les tranchants de dents (3) adjacents. Un moteur électrique (6) est monté dans la poignée (1), et le moteur électrique (6) entraîne la chaîne sans fin de la lame coupante (2) à l'aide d'un dispositif de transmission, pour qu'elle se déplace autour de la périphérie de la plaque-guide (5).
PCT/CN2008/001431 2007-08-08 2008-08-06 Fraise à os électrique Ceased WO2009018720A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007101200429A CN101361670A (zh) 2007-08-08 2007-08-08 电动骨刀
CN200710120042.9 2007-08-08

Publications (1)

Publication Number Publication Date
WO2009018720A1 true WO2009018720A1 (fr) 2009-02-12

Family

ID=40340943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/001431 Ceased WO2009018720A1 (fr) 2007-08-08 2008-08-06 Fraise à os électrique

Country Status (2)

Country Link
CN (1) CN101361670A (fr)
WO (1) WO2009018720A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013016472A1 (fr) 2011-07-27 2013-01-31 Stryker Ireland Limited Scie sagittale chirurgicale et cartouche de lames, la cartouche ayant des nervures de renforcement en une seule pièce avec la barre de lame
KR101825991B1 (ko) 2016-08-10 2018-02-06 인제대학교 산학협력단 반원통형 절골술 기구
CN113331904A (zh) * 2021-06-07 2021-09-03 四川大学华西医院 一种胸腔镜肋骨线锯导引定位套装
USD1084334S1 (en) 2022-06-22 2025-07-15 Stryker European Operations Limited Surgical blade cartridge
USD1084335S1 (en) 2022-06-22 2025-07-15 Stryker European Operations Limited Surgical blade cartridge

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1571926A (en) * 1976-03-19 1980-07-23 Hamer Geerd Cutting device
US4250625A (en) * 1979-08-13 1981-02-17 Alfred Reif Miniature blade device
CN87211413U (zh) * 1987-08-04 1988-03-23 中国人民解放军88医院 全角度摆动式电动骨锯
US5133728A (en) * 1990-01-05 1992-07-28 Petersen Thomas D Gall-resistant ribbed surgical saw blade
US5725530A (en) * 1996-06-19 1998-03-10 Popken; John A. Surgical saw and methods therefor
US20070073303A1 (en) * 2005-09-09 2007-03-29 Namba Robert S Bone-cutting circular saw
WO2008011409A2 (fr) * 2006-07-17 2008-01-24 Arthrosurface Incorporated système et procédé de résection des tissus
CN201048963Y (zh) * 2007-07-04 2008-04-23 北京蒙太因医疗器械有限公司 电动骨刀

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1571926A (en) * 1976-03-19 1980-07-23 Hamer Geerd Cutting device
US4250625A (en) * 1979-08-13 1981-02-17 Alfred Reif Miniature blade device
CN87211413U (zh) * 1987-08-04 1988-03-23 中国人民解放军88医院 全角度摆动式电动骨锯
US5133728A (en) * 1990-01-05 1992-07-28 Petersen Thomas D Gall-resistant ribbed surgical saw blade
US5725530A (en) * 1996-06-19 1998-03-10 Popken; John A. Surgical saw and methods therefor
US20070073303A1 (en) * 2005-09-09 2007-03-29 Namba Robert S Bone-cutting circular saw
WO2008011409A2 (fr) * 2006-07-17 2008-01-24 Arthrosurface Incorporated système et procédé de résection des tissus
CN201048963Y (zh) * 2007-07-04 2008-04-23 北京蒙太因医疗器械有限公司 电动骨刀

Also Published As

Publication number Publication date
CN101361670A (zh) 2009-02-11

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