NL2030207A - Auxiliary guide device for placing solid nail in spinal minimally invasive surgery - Google Patents

Auxiliary guide device for placing solid nail in spinal minimally invasive surgery Download PDF

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Publication number
NL2030207A
NL2030207A NL2030207A NL2030207A NL2030207A NL 2030207 A NL2030207 A NL 2030207A NL 2030207 A NL2030207 A NL 2030207A NL 2030207 A NL2030207 A NL 2030207A NL 2030207 A NL2030207 A NL 2030207A
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Prior art keywords
sleeve
locator
locating part
fixed nail
minimally invasive
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NL2030207A
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Dutch (nl)
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NL2030207B1 (en
Inventor
Wang Yongxiang
Cao Yile
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Univ Yangzhou
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Publication of NL2030207B1 publication Critical patent/NL2030207B1/en

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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
    • A61B17/16—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
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1757—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the spine

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

Abstract

The present invention provides an auxiliary guide device for placing a solid nail in spinal minimally invasive surgery, comprising an outer sleeve and an inner sleeve, wherein the outer sleeve comprises a cylindrical fixing part, a lower end of the fixing part is provided with a cylindrical first outer locating part; a lower end of the first outer locating part is provided with a conical second outer locating part; the inner sleeve comprises a first inner locating part; a lower end of the first inner locating part is provided with a conical second inner locating part; and a lower end of the second inner locating part is provided with a cylindrical third inner locating part. The invention uses the solid nail and the guide device to replace the hollow screw, which increases the strength of the nailing, and improves the operation efficiency.

Description

1 AO 21.12.1098 NL Auxiliary guide device for placing solid nail in spinal minimally invasive surgery Technical field The present invention relates to the technical field of spinal minimally invasive surgery, and more particularly to an auxiliary guide device for placing a solid nail in spinal minimally invasive surgery. Background art Minimally invasive surgery means avoiding large incision under a certain medical risk, using minute incision or puncture channel, using special instruments and devices from normal anatomical structure to lesion under the monitoring of image instrument or guided by navigation technology, using all kinds of micro manual or electric instruments and devices to finish the whole operation process under the visual condition, so as to reach the goals that compared with the traditional or standard spinal surgery, the incision is smaller, tissue wound is smaller, bleeding 1s less, operation precision is higher, the effect is more positive, postoperative function recovery is faster.
[0003] At present, in the process of placing a nail in spinal minimally invasive surgery, usually, the guide pin is firstly inserted, then a hollow screw is placed along the guide pin, but the hollow screw has a certain disadvantages: 1, the strength thereof is not good as solid nail; and 2, the price is expensive. However, although the solid nail is better than the hollow nail, the solid nail lacks a guide device at present, resulting in difficult to realize placing a solid nail in minimally invasive surgery operation. Summary of the invention Aiming at the technical problem of the existing technology, the present invention provides an auxiliary guide device for placing a solid nail in spinal minimally invasive surgery, so as to realize the implantation of solid nail in spinal minimally invasive surgery. The present invention provides an auxiliary guide device for placing a solid nail in spinal minimally invasive surgery, comprising: an outer sleeve; the outer sleeve comprises a cylindrical fixing part, a lower end of the fixing part is provided with a cylindrical first outer locating part; a lower end of the first
2 AO 21.12.1098 NL outer locating part is provided with a conical second outer locating part; the inner diameter of the first outer locating part is equal to that of the fixing part, and the large inner diameter of the second outer locating part is equal to the inner diameter of the first outer locating part; the outer sleeve consists of a left sleeve and a right sleeve, the fixing part consists of a left fixing part disposed on the left sleeve and a right fixing part disposed on the right sleeve; the end of the left fixing part is provided with one or two clamping tenons, and the right fixing part is provided with a clamping groove matched with the clamping tenon, the clamping tenon is clamped with the clamping groove; the large inner diameter of the second outer locating part is larger than the outer diameter of the solid nail, and the small inner diameter of the second outer locating part is smaller than the outer diameter of the solid nail; an inner sleeve; the inner sleeve comprises a first inner locating part; a lower end of the first inner locating part is provided with a conical second inner locating part; a lower end of the second inner locating part is provided with a cylindrical third inner locating part; the inner diameters of the first inner locating part, the second inner locating part, and the third inner locating part are equal with each other; the inner sleeve is set inside the outer sleeve, and the first inner locating part and the second inner locating part are coincident with the first outer locating part and the second outer locating part respectively; the third inner locating part is set outside the outer sleeve; the inner diameter of the inner sleeve is larger than the outer diameter of the guide pin and the screw tap.
Preferably, the inner surface of the top part of the first inner locating part is outer convex arc-shaped.
Preferably, both of the outer sleeve and the inner sleeve are made by 3D printing. Preferably, an implementation method of the device comprises the following steps: S1, the outer sleeve is clamped in the articular process; S2, the guide pin is placed in the inner sleeve; the guide pin drives the inner sleeve to reach the target bone surface; the inner sleeve is clamped in the articular process, then the guide pin is taken out; S3, the screw tap is placed in the inner sleeve; tapping the target bone surface along the inner sleeve;
3 AO 21.12.1098 NL S4, after finishing tapping, screw tap, inner sleeve are orderly taken out; S35, the solid nail is placed in the outer sleeve, the target bone surface is nailed along the outer sleeve; S6, as the solid nail is placed, the left sleeve and the right sleeve are gradually separated; and S7, after the solid nail is placed, the separated left sleeve and right sleeve are taken out.
Compared with the prior art, the invention has the following beneficial effects: 1, the invention designs the outer sleeve and the inner sleeve; the guide pin detects the surface of the wound bone to locate the inner sleeve; the located inner sleeve guides the screw tap to tap the surface of the wound bone; after tapping, the solid nail is guided by the outer sleeve to nail the surface of the wound bone, so as to reach the guide purpose for placing the solid nail. 2, the invention uses solid nail and guide device to replace the hollow screw, increases the strength of the nailing, improves the operation efficiency.
In addition, the price of the hollow screw is expensive, while the guide device in the present invention can be made by using 3D printing technology, which greatly reduces the cost.
It can bring great economic benefit after widely applying the invention.
Brief description of the drawings In order to more clearly illustrate the specific embodiments of the present invention or the technical solution in the prior art, the accompanying drawings used in the specific embodiments or the prior art description will be brietly described, and it is obvious that the accompanying drawings in the following description are some embodiments of the present invention; for those of ordinary skill in the art, under the premise of not paying creative labour, it can obtain other drawings according to these drawings.
FIG. 1 is a cross-sectional schematic diagram of thre outer sleeve in the example of the present invention.
Picture 2 is a structure schematic diagram of the left sleeve in the example of the present invention.
Picture 3 is a structure schematic diagram of the right sleeve in the example of the present invention.
4 AO 21.12.1098 NL FIG. 4 is a cross-sectional schematic diagram of the inner sleeve in the example of the present invention.
In the drawings: 100-outer sleeve, 101-first outer locating part, 102-second outer locating part, 103-fixing part, 103 1-left fixing part, 1032-right fixing part, 104-left sleeve, 105-right sleeve, 106-clamping tenon, 107-clamping groove, 200-inner sleeve, 201-first inner locating part, 202-second inner locating part, and 203-third inner locating part.
Detailed description of the invention The following example is provided for better understanding of the present invention, not limited to the preferred embodiments, and does not limit the content and scope of the present invention.
Any product being the same as or similar to the present invention obtained by anyone under the inspiration of the present invention or by combining the present invention with other features of the prior art will fall within the scope of the present invention.
Example Referring to FIG. 1-4, an auxiliary guide device for placing a solid nail in spinal minimally invasive surgery comprises: outer sleeve 100 and inner sleeve 200. The outer sleeve 100 comprises a cylindrical fixing part 103, a lower end of the fixing part 103 is provided with a cylindrical first outer locating part 101; a lower end of the first outer locating part 101 is provided with a conical second outer locating part 102; the inner diameter of the first outer locating part 101 is equal to that of the fixing part 103, and the large inner diameter of the second outer locating part 102 is equal to the inner diameter of the first outer locating part 101; the length of the first outer locating part 101 is greater than the length of the second outer locating part 102. Further, the outer sleeve 100 consists of a left sleeve 104 and a right sleeve 105, the fixing part 103 consists of a left fixing part 1031 disposed on the left sleeve 104 and a right fixing part 1032 disposed on the right sleeve 105; the end of the left fixing part 1031 is provided with one or two clamping tenons 106, and the right fixing part 1032 is provided with a clamping groove 107 matched with the clamping tenon 106, the clamping tenon 106 is clamped with the clamping groove 107, the clamping tenon 106
AO 21.12.1098 NL and the clamping groove 107 are set on the two outer sides of the first outer locating part 101. Further, the large inner diameter of the second outer locating part 102 is slightly larger than the outer diameter of the solid nail, and the small inner diameter of the second 5 outer locating part 102 is slightly smaller than the outer diameter of the solid nail.
Since the outer diameter of the top part of the solid nail is large, it is difficult to directly take out the outer sleeve along the solid nail. By the above design, when the solid nail is gradually placed along the outer sleeve 100, the left sleeve 104 and the right sleeve 105 will automatically separate under the extrusion of the solid nail, while the solid nail is relatively firmly placed, namely it can conveniently and quickly take out the left sleeve 104 and the right sleeve 105.
The inner sleeve 200 comprises the first inner locating part 201, the inner surface of the top part of the first inner locating part 201 is outer convex arc-shaped, which is benefit to the guide pin to detect. A lower end of the first inner locating part 201 is provided with a conical second inner locating part 202; a lower end of the second inner locating part 202 is provided with a cylindrical third inner locating part 203; the inner diameters of the first inner locating part 201, the second inner locating part 202, and the third inner locating part 203 are equal with each other; the inner sleeve 200 is set inside the outer sleeve 100, and the first inner locating part 201 and the second inner locating part 202 are coincident with the first outer locating part 101 and the second outer locating part 102 respectively; the third inner locating part 203 is set outside the outer sleeve 100, the first inner locating part 201 can be partially set outside the outer sleeve 100; the inner diameter of the inner sleeve 200 is slightly greater than the outer diameter of the guide pin and the screw tap.
Further, the size of the articular process is calculated according to the CT image, then the device is made by 3D printing, an implementation method of the device comprises the following steps: S 1, the outer sleeve 100 is clamped in the articular process; in the actual operation, it is usually clamped in the soft tissue of the articular process; S2, the guide pin is placed in the inner sleeve 200, the guide pin drives the inner sleeve 200 to reach the target bone surface (surface or wound bone), the inner sleeve 200 is
6 AO 21.12.1098 NL clamped in the soft tissue of the articular process through the third inner locating part 203, then the guide pin is taken out; S3, the screw tap is placed in the inner sleeve 200, tapping the target bone surface along the inner sleeve 200, to expand the opening of the target bone surface, which is convenient for placing the solid nail; at this time, the outer sleeve 100 also can be finely adjusted according to the position of the inner sleeve 200, so that the inner sleeve 200 is placed at the center of the outer sleeve 100; S4, after finishing tapping, screw tap and inner sleeve 200 are orderly taken out; S5, the solid nail is placed in the outer sleeve 100, nailing the target bone surface along the outer sleeve 100; S6, as the solid nail 1s placed, the left sleeve 104 and the right sleeve 105 are gradually separated; and S7, after the solid nail is placed, the separated left sleeve 104 and right sleeve 105 are taken out.
This example reaches the guide purpose of placing the solid nail by using the guide pin to detect the wound bone surface to locate the inner sleeve 200, after locating, the solid nail is guided by the outer sleeve 100 for placing the solid nail in the wound bone surface, which increases the strength of the nailing, improves the operation efficiency, reduces the cost, and has great economic benefit at the same time.
Obviously, the above example is merely example for clarity, and does not limit embodiments. For those of ordinary skill in the art, other changes or variations in different forms may be made on the basis of the above description. There is no need for the exhaustive of all the embodiments. The obvious change or variation derived therefrom still fall within the protection scope of the Invention.

Claims (4)

7 AO 21.12.1098 NL Conclusies7 AO 21.12.1098 NL Conclusions 1. Een hulp geleide apparaat voor het plaatsen van een vaste nagel in minimaal invasieve ruggengraat chirurgie, met het kenmerk dat het omvat: een buitenhuls, waarbij de buitenhuls een cilindrisch bevestigingsonderdeel omvat, waarbij een ondereind van het bevestigingsonderdeel voorzien is van een eerste cilindrisch buiten plaatsbepalend onderdeel; waarbij een ondereind van het eerste buiten plaatsbepalend onderdeel voorzien is van een tweede conisch buiten plaatsbepalend onderdeel, waarbij de binnendiameter van het eerste buiten plaatsbepalende onderdeel gelijk is aan die van het bevestigingsonderdeel, en de grote binnendiameter van het tweede buiten plaatsbepalende onderdeel gelijk is aan de binnendiameter van het eerste buiten plaatsbepalende onderdeel; waarbij de buitenhuls bestaat uit een linker huls en een rechter huls, het bevestigingsonderdeel bestaat uit een linker bevestigingsonderdeel geplaatst op de linker huls en een rechter bevestigingsonderdeel geplaatst op de rechter huls; het uiteinde van het linker bevestigingsonderdeel is voorzien van één of twee klempennen, en het rechter bevestigingsonderdeel is voorzien van een klemgleuf afgestemd op de klempen, waarbij de klempen vastgeklemd wordt in de klemgleuf; waarbij de grote binnendiameter van het tweede buiten plaatsbepalende onderdeel groter is dan de buitendiameter van de vaste nagel, en de kleine binnendiameter van het tweede buiten plaatsbepalende onderdeel Kleiner is dan de buitendiameter van de vaste nagel; en een binnenhuls, waarbij de binnenhuls een eerste binnen plaatsbepalend onderdeel omvat; waarbij een lager eind van het eerste binnen plaatsbepalende onderdeel voorzien is van een conisch tweede binnen plaatsbepalend onderdeel; een lager eind van het tweede binnen plaatsbepalende onderdeel is voorzien van een derde cilindrisch binnen plaatsbepalend onderdeel; de binnendiameters van het eerst binnen plaatsbepalende onderdeel, het tweede binnen plaatsbepalende onderdeel, en het derde binnen plaatsbepalende onderdeel gelijk zijn aan elkaar; de binnenhuls geplaatst is in de buitenhuls, en het eerste binnen plaatsbepalende onderdeel en het tweede binnen plaatsbepalende onderdeel samenvallen met het eerste buiten plaatsbepalende onderdeel respectievelijk het tweede buiten plaatsbepalende onderdeel; het derde binnenAn auxiliary guided device for positioning a fixed nail in minimally invasive spinal surgery, characterized in that it comprises: an outer sheath, the outer sheath comprising a cylindrical fastening member, a lower end of the fastening member having a first cylindrical outer localizer; wherein a lower end of the first outer locator member includes a second conical outer locator member, wherein the inner diameter of the first outer locator member is equal to that of the mounting member, and the major inner diameter of the second outer locator member is equal to the inner diameter of the first outer locator; wherein the outer sleeve consists of a left sleeve and a right sleeve, the fastening member consists of a left fastening member disposed on the left sleeve and a right mounting member disposed on the right sleeve; the end of the left fastening part is provided with one or two clamping pins, and the right fastening part is provided with a clamping slot matched to the clamping pin, the clamping pin being clamped in the clamping slot; wherein the large inner diameter of the second outer locator member is greater than the outer diameter of the fixed nail, and the small inner diameter of the second outer locator member is smaller than the outer diameter of the fixed nail; and an inner sleeve, the inner sleeve comprising a first inner locator member; wherein a lower end of the first inner locator member includes a conical second inner locator member; a lower end of the second inner locator member has a third cylindrical inner locator member; the inner diameters of the first inner locator, the second inner locator, and the third inner locator are equal to each other; the inner sleeve is located in the outer sleeve, and the first inner localizer and the second inner localizer are coincident with the first outer localizer and the second outer locator, respectively; the third in 8 AO 21.12.1098 NL plaatsbepalende onderdeel geplaatst is buiten de buitenhuis; de binnendiameter van de binnenhuls groter is dan de buitendiameter van de geleide pen en de schroef tap.8 AO 21.12.1098 NL locating element is placed outside the outer casing; the inner diameter of the inner sleeve is greater than the outer diameter of the guide pin and screw tap. 2. Hulp geleide apparaat voor het plaatsen van een vaste nagel in minimaal invasieve ruggengraat chirurgie volgens conclusie 1, met het kenmerk dat het binnen oppervlak van het bovendeel van het eerste binnen plaatsbepalende onderdeel aan de buitenkant convex boogvormig is.An auxiliary guided device for placing a fixed nail in minimally invasive spinal surgery according to claim 1, characterized in that the inner surface of the upper portion of the first inner locator member is convexly arcuate on the outside. 3. Hulp geleide apparaat voor het plaatsen van een vaste nagel in minimaal invasieve ruggengraat chirurgie volgens conclusie 1, met het kenmerk dat zowel de buitenhuls als de binnenhuls gemaakt zijn met 3D printen.An auxiliary guided device for placing a fixed nail in minimally invasive spinal surgery according to claim 1, characterized in that both the outer sheath and the inner sheath are made with 3D printing. 4. Hulp geleide apparaat voor het plaatsen van een vaste nagel in minimale invasieve ruggengraat chirurgie volgens conclusie 1, met het kenmerk dat een implementatie werkwijze van het apparaat de volgende stappen omvat: S1, de buitenhuls wordt vastgeklemd in een gewrichtsproces; S2, de geleide pen wordt geplaatst in de binnenhuls; de geleide pen drijft de binnenhuls aan om het doel botoppervlak te bereiken; de binnenhuls wordt vastgeklemd in het gewrichtsproces, waarbij de geleide pen eruit wordt gehaald; S3, de schroef tap wordt in de binnenhuls geplaatst, het doel botoppervlak wordt langs de binnenhuls getapt; S4, de schroef tap en binnenhuls worden netjes verwijderd als het tappen klaar is; S5, de vaste nagel wordt geplaatst in de buitenhuls waardoor het doel botoppervlak langs de buitenhuls vastgenageld wordt; S6, terwijl de vaste nagel geplaatst wordt, worden de linker huls en de rechter huls langzaam gescheiden; en S7, nadat de vaste nagel geplaatst is, worden de gescheiden linker huls en rechter huls verwijderd.An auxiliary guided device for placing a fixed nail in minimally invasive spinal surgery according to claim 1, characterized in that an implementation method of the device comprises the following steps: S1, the outer sheath is clamped in a joint process; S2, the guide pin is placed in the inner sleeve; the guide pin drives the inner sleeve to reach the target bone surface; the inner sleeve is clamped in the joint process, taking out the guided pin; S3, the screw tap is placed in the inner sleeve, the target bone surface is tapped along the inner sleeve; S4, the screw tap and inner sleeve are neatly removed when tapping is finished; S5, the fixed nail is placed in the outer sheath thereby nailing the target bone surface along the outer sheath; S6, while setting the fixed nail, the left sleeve and the right sleeve are slowly separated; and S7, after the fixed nail is set, the separated left sleeve and right sleeve are removed.
NL2030207A 2021-01-28 2021-12-21 Auxiliary guide device for placing solid nail in spinal minimally invasive surgery NL2030207B1 (en)

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Application Number Priority Date Filing Date Title
CN202110118373.9A CN112754640A (en) 2021-01-28 2021-01-28 Auxiliary guide device for implanting solid nail in minimally invasive spine surgery

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NL2030207A true NL2030207A (en) 2022-05-12
NL2030207B1 NL2030207B1 (en) 2022-06-03

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020128659A1 (en) * 2001-03-01 2002-09-12 Michelson Gary K. Dynamic lordotic guard with movable extensions for creating an implantation space posteriorly in the lumbar spine and method for use thereof
US20020143343A1 (en) * 2001-03-27 2002-10-03 Surgical Dynamics, Inc. Method and apparatus for spinal implant insertion
CN207640475U (en) * 2017-06-26 2018-07-24 胡庆丰 Intervertebral foramen expands the device of forming in a kind of operation of foramen intervertebrale lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020128659A1 (en) * 2001-03-01 2002-09-12 Michelson Gary K. Dynamic lordotic guard with movable extensions for creating an implantation space posteriorly in the lumbar spine and method for use thereof
US20020143343A1 (en) * 2001-03-27 2002-10-03 Surgical Dynamics, Inc. Method and apparatus for spinal implant insertion
CN207640475U (en) * 2017-06-26 2018-07-24 胡庆丰 Intervertebral foramen expands the device of forming in a kind of operation of foramen intervertebrale lens

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LU500964B1 (en) 2022-09-06
LU500964A1 (en) 2022-08-09
CN112754640A (en) 2021-05-07
NL2030207B1 (en) 2022-06-03

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