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WO2018170900A1 - Dispositif de canal foraminal intervertébral minimalement invasif a fonction de positionnement précise - Google Patents

Dispositif de canal foraminal intervertébral minimalement invasif a fonction de positionnement précise Download PDF

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Publication number
WO2018170900A1
WO2018170900A1 PCT/CN2017/078133 CN2017078133W WO2018170900A1 WO 2018170900 A1 WO2018170900 A1 WO 2018170900A1 CN 2017078133 W CN2017078133 W CN 2017078133W WO 2018170900 A1 WO2018170900 A1 WO 2018170900A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning
tube
minimally invasive
rod
guiding tube
Prior art date
Application number
PCT/CN2017/078133
Other languages
English (en)
Chinese (zh)
Inventor
周跃
Original Assignee
重庆博仕康科技有限公司
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 重庆博仕康科技有限公司 filed Critical 重庆博仕康科技有限公司
Priority to PCT/CN2017/078133 priority Critical patent/WO2018170900A1/fr
Publication of WO2018170900A1 publication Critical patent/WO2018170900A1/fr

Links

Definitions

  • the invention relates to the technical field of medical instruments, in particular to a device for accurately positioning a minimally invasive channel between cones.
  • the incision is opened by the dilatation tube, and the incision is inserted from the incision to the vicinity of the affected part, and the drill is inserted into the dilating tube to grind the interference portion of the affected area to fully Expose the affected area to facilitate the operation.
  • the grinding drill may be displaced along the direction of the slit, so that the grinding is in the process of grinding the bone. It is not always possible to accurately align the parts that need to be grounded, and may even damage the nerves due to slippage, causing irreversible consequences.
  • the invention provides a micro-invasion channel tube for accurately positioning the inter-cone hole, which solves the problem that the grinding drill can not always maintain precise positioning in the prior art, and often slips during the grinding process.
  • the device for accurately positioning the inter-cone hole minimally invasive channel comprises: a positioning channel tube, a dilation tube and a grinding drill, wherein the positioning channel tube is insertably inserted in the expansion tube, and the positioning channel tube comprises: a positioning rod and a guiding tube on one side of the positioning rod, the guiding tube has an axis parallel to the axis of the positioning rod, the positioning head of the positioning rod projects the guiding tube in the longitudinal direction , and the grinding drill is pluggable
  • the ground cover is inside the guide tube.
  • the positioning rod is integrally formed with the guiding tube.
  • the guide tube is inclined disposed near an opening of the positioning head, the opening end surface is perpendicular to a plane defined by the axis of the guiding tube and the axis of the positioning rod, and the point on the edge of the opening is farther from the positioning rod The further away from the positioning head in the length direction.
  • the expansion tube has an elliptical cross section.
  • the method further includes a handle, and the hand-held end of the grinding drill is further provided with a connecting portion detachably connected to the handle.
  • the handle comprises: a transverse shank and a longitudinal rod vertically connected to the horizontal shank, wherein the longitudinal rod is provided with a polygonal counterbore along the axis, and a locking pin passing through the longitudinal rod is further disposed in the radial direction, the connection
  • the portion is a polygonal cylinder matched with the polygonal counterbore, the outer side of the polygonal cylinder is provided with an annular groove, and the locking pin comprises: a hollow outer casing and a button with a pin, and the side of the hollow outer casing corresponding to the polygonal counterbore
  • the wall region is provided with a first opening, the plug is provided with a second opening and a protrusion, and the button is inserted from one end of the hollow casing, so that the pin is located in the hollow casing and is in contact with the spring located at the bottom of the other end of the hollow casing.
  • the bottom of the hollow casing is formed with a boss, and the sidewall is further provided with a limiting stopper.
  • the boss and the limiting stopper are respectively located at two ends of the protruding portion to block the latch from moving away from the end of the spring.
  • the precise positioning inter-cone hole minimally invasive channel device of the invention has a positioning rod and a guiding tube, and the positioning head of the positioning rod is placed beside the affected part during the operation, and the grinding drill passes through the guiding tube and is exactly aligned with the grinding In the interference part, since the positioning head is held by the external force, the grinding diamond can be accurately ground during the grinding process.
  • FIG. 1 is a schematic structural view of a device for accurately positioning a cone-in-the-hole minimally invasive channel according to the present invention
  • FIG. 2 is a schematic structural view of the positioning channel tube in FIG. 1;
  • Figure 3 is a schematic view of the structure of the handle
  • Figure 4 is a schematic view showing the structure inside the counterbore when the handle is not pressed
  • Figure 5 is a schematic view of the internal structure of the counterbore when the handle is pressed.
  • the precise positioning inter-cone hole minimally invasive channel device of this embodiment is shown in FIG. 1 and includes: positioning channel tube 2, dilation tube 1 and grinding drill 3
  • the positioning channel tube 2 is insertably inserted into the expansion tube 1.
  • the positioning channel tube 2 includes: a positioning rod 21 and a guiding tube 22 on one side of the positioning rod 21, and the guiding tube 22
  • the axis is parallel to the axis of the positioning rod 21, and the positioning head 211 of the positioning rod 21 projects out of the guide tube 22 in the longitudinal direction (i.e., the axis of the positioning rod 21 or the guide tube 22).
  • Grinding drill 3 It is inserted in the guide tube 22 in a pluggable manner.
  • the dilatation tube 1 is inserted along the incision, and the positioning channel tube 2 is inserted into the dilation tube 1 and the positioning head 211 is placed.
  • the top is next to the affected area, so that the grinding drill 3 passes through the guiding tube 2 and is just aligned with the part to be ground to achieve positioning.
  • the positioning head 211 Since the positioning head 211 The external force can withstand the movement, avoiding the grinding of the drill 3 and the slippage, and keeping the grinding drill 3 accurately grinding the bone.
  • the head 211 After positioning, the interference can be ground by using the positioning point as a fulcrum according to the doctor's idea, which makes grinding more convenient.
  • the positioning rod 21 is integrally formed with the guide tube 22, which increases the stability of the entire positioning channel tube 2.
  • the opening of the guide tube 22 near the positioning head 211 is inclined, and the opening end surface is perpendicular to the axis of the guide tube 22 and the positioning rod 21
  • the axis defined by the axis, and the further the point on the edge of the opening from the positioning rod 21 is further away from the positioning head 211 in the longitudinal direction, that is, the guide tube 22 in Fig. 2 is formed close to the positioning head 211.
  • the radial dimension has a long end and a short end. If a diameter dilatation tube (ie, a round tube) matching the long end dimension is also used, the wound surface is enlarged to increase the risk of postoperative infection. Therefore, in this embodiment, the expansion tube 1
  • the cross section is elliptical, the long axis of the ellipse matches the long end dimension, and the short axis matches the short end dimension, thereby reducing the wound area and facilitating postoperative recovery.
  • the embodiment When grinding bones, it is usually the hand held end of the doctor holding the grinding drill (with the positioning head 211 The opposite end of the rotation, the embodiment further includes: a handle, and the hand-held end of the positioning rod 21 is further provided with a connecting portion detachably connected to the handle. .
  • the handle makes it easier to hold and saves effort, especially for large bones. For the fine grinding bone with small amount of bone grinding, the handle can be omitted, so that the feedback is better when the hand feels and the bone is worn.
  • the handle comprises: a cross handle 41 and a longitudinal rod 42 perpendicularly connected to the cross handle 41, the longitudinal rod 42
  • the upper axis is provided with a polygonal counterbore 43
  • a locking pin passing through the longitudinal rod 42 is further disposed in the radial direction
  • the connecting portion 31 is a polygonal cylinder matching the polygonal counterbore 43
  • the outer side of the polygonal cylinder is provided with an annular groove 311.
  • the locking pin comprises a hollow outer casing 44 and a button 45 with a pin.
  • the hollow outer casing 44 is provided with a first opening in a side wall region corresponding to the polygonal counterbore 43 and a second opening and a projection on the plug.
  • the pin 45 is inserted from one end of the hollow casing 44 such that the pin is located within the hollow casing 44 and is in contact with the spring 46 located at the other end of the hollow casing 44.
  • the bottom of the hollow casing 44 is formed with a boss (Fig. 4).
  • the side wall is further provided with a limit stop 47, and the boss and the limit stop 47 are respectively located at the two ends of the protrusion to block the pin from moving away from the end of the spring 46.
  • the mating connection structure of the handle and the grindstone 3 is simple, and the disassembly and assembly is convenient.
  • the present invention is not limited to the above-mentioned mating structure.

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  • Surgical Instruments (AREA)

Abstract

L'invention concerne un dispositif de canal foraminal intervertébral minimalement invasif à fonction de positionnement précise. Le dispositif comprend un tube de canal de positionnement (2), un tube d'expansion (1) et un foret d'abrasion (3). Le tube de canal de positionnement (2) est emmanché dans le tube d'expansion (1) et comprend une tige de positionnement (21) et un tube de guidage (22) situé sur un côté de la tige de positionnement (21), l'axe du tube de guidage (22) est parallèle à l'axe de la tige de positionnement (21), une partie tête de positionnement (211) de la tige de positionnement (21) s'étend hors du tube de guidage (22) dans le sens de la longueur, et le foret d'abrasion (3) est emmanché dans le tube de guidage (22). Le dispositif de canal foraminal intervertébral minimalement invasif à fonction de positionnement précise comporte la tige de positionnement (21) et le tube de guidage (22), et peut ainsi positionner avec précision la partie d'interférence de meulage pour exposer la partie affectée pour une chirurgie, améliorer le phénomène de glissement sans positionnement, et réduire le risque chirurgical d'un patient et la difficulté d'opération.
PCT/CN2017/078133 2017-03-24 2017-03-24 Dispositif de canal foraminal intervertébral minimalement invasif a fonction de positionnement précise WO2018170900A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/078133 WO2018170900A1 (fr) 2017-03-24 2017-03-24 Dispositif de canal foraminal intervertébral minimalement invasif a fonction de positionnement précise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/078133 WO2018170900A1 (fr) 2017-03-24 2017-03-24 Dispositif de canal foraminal intervertébral minimalement invasif a fonction de positionnement précise

Publications (1)

Publication Number Publication Date
WO2018170900A1 true WO2018170900A1 (fr) 2018-09-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/078133 WO2018170900A1 (fr) 2017-03-24 2017-03-24 Dispositif de canal foraminal intervertébral minimalement invasif a fonction de positionnement précise

Country Status (1)

Country Link
WO (1) WO2018170900A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201052178Y (zh) * 2007-05-31 2008-04-30 吴立华 股骨带锁髓内钉骨近端钉尾扩孔器
US20090076555A1 (en) * 2007-09-13 2009-03-19 David Lowry Transcorporeal spinal decompression and repair system and related method
US20140200668A1 (en) * 2013-01-15 2014-07-17 X-Spine Systems, Inc. Implant system having a multifunctional inserter and complementary implant
US20160175113A1 (en) * 2014-12-22 2016-06-23 Dsan Technology Llc Sacroiliac joint fusion systems and methods
CN106955137A (zh) * 2017-03-24 2017-07-18 重庆博仕康科技有限公司 精准定位锥间孔微创通道装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201052178Y (zh) * 2007-05-31 2008-04-30 吴立华 股骨带锁髓内钉骨近端钉尾扩孔器
US20090076555A1 (en) * 2007-09-13 2009-03-19 David Lowry Transcorporeal spinal decompression and repair system and related method
US20140200668A1 (en) * 2013-01-15 2014-07-17 X-Spine Systems, Inc. Implant system having a multifunctional inserter and complementary implant
US20160175113A1 (en) * 2014-12-22 2016-06-23 Dsan Technology Llc Sacroiliac joint fusion systems and methods
CN106955137A (zh) * 2017-03-24 2017-07-18 重庆博仕康科技有限公司 精准定位锥间孔微创通道装置

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