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WO2025212935A1 - Fraise hybride et ses procédés d'utilisation pour éliminer un tissu dur - Google Patents

Fraise hybride et ses procédés d'utilisation pour éliminer un tissu dur

Info

Publication number
WO2025212935A1
WO2025212935A1 PCT/US2025/023021 US2025023021W WO2025212935A1 WO 2025212935 A1 WO2025212935 A1 WO 2025212935A1 US 2025023021 W US2025023021 W US 2025023021W WO 2025212935 A1 WO2025212935 A1 WO 2025212935A1
Authority
WO
WIPO (PCT)
Prior art keywords
surgical bur
abrasive surface
length
fluted portion
hard tissue
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.)
Pending
Application number
PCT/US2025/023021
Other languages
English (en)
Inventor
Zachary Kemp
Raymond GARDOCKI
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.)
Arthrex Inc
Original Assignee
Arthrex Inc
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 Arthrex Inc filed Critical Arthrex Inc
Publication of WO2025212935A1 publication Critical patent/WO2025212935A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1662—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1671—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the spine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B2017/1602—Mills
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B2017/320004—Surgical cutting instruments abrasive

Definitions

  • abrasive working surface typically a substrate coated with a plurality of abrasive particles.
  • Cutting flutes typically provide faster/more aggressive tissue removal compared to an abrasive surface.
  • Abrasive surfaces typically provide finer control over which tissue is removed and the amount of tissue that is removed.
  • different surgical burs with different abrasive working surfaces of varying roughness may be used throughout the procedure.
  • a first surgical bur with a rougher working surface may be used to remove a first section of hard tissue.
  • This disclosure relates to a surgical bur used to remove tissue (e.g., hard tissue) from a surgical site within a body.
  • the surgical bur may be inserted into the body through an incision (with or without the assistance of a cannula forming a stable passage through the incision), and a tip of the surgical bur may be advanced to the surgical site.
  • the tip includes at least two different working surfaces that provide different rates of tissue removal upon contact with tissue.
  • the different working surfaces may include an abrasive surface formed by a plurality of particles with an average particle size. Additionally, the working surfaces may include a fluted portion including a plurality of cutting edges each separated by grooves.
  • a surgical bur including an elongate body.
  • the elongate body includes an abrasive surface comprising particles, and further includes a fluted portion that is discrete from the abrasive surface.
  • the fluted portion includes a plurality flutes extending into the elongate body and a plurality of cutting edges each positioned between adjacent ones of the plurality of flutes.
  • the elongate body includes a proximal end and a distal end spaced from the proximal end along a central axis.
  • the elongate body further includes a tip and a shaft.
  • the tip extends away from the shaft distally and includes both the abrasive surface and the fluted portion.
  • the shaft extends away from the tip and toward the proximal end.
  • One of the abrasive surface and the fluted portion is positioned closer to the distal end and the other of the abrasive surface and the fluted portion is positioned closer to the proximal end.
  • Some embodiments described herein include a method of removing tissue that includes first and second sections of hard tissue.
  • the method includes rotating an elongate body of a surgical bur about an axis.
  • the elongate body includes an abrasive surface and a fluted portion.
  • the fluted portion includes a plurality of flutes that extend into the elongate body and a plurality of cutting edges positioned between adjacent ones of the flutes.
  • the first section of hard tissue is removed with the fluted portion while rotating the elongate body about the axis.
  • the second section of hard tissue is removed with the abrasive surface while rotating the elongate body about the axis.
  • Some surgical methods include removing the first section of hard tissue at a first removal rate, and removing the second section of hard tissue at a second removal rate while maintaining a constant rotation rate of the elongate body about the axis.
  • the abrasive surfaces and the fluted portion have different cutting power, which results in different removal rates while maintaining a constant rotational speed of the surgical bur.
  • Figure 1 is an isometric view of a surgical bur in use during a surgical procedure.
  • Figure 2 is an elevation view of a surgical bur with a cylindrical tip.
  • Figure 3 is an isometric view of a surgical bur with a tapered cylindrical tip.
  • Figure 4 is an elevation view of a surgical bur with a spherical tip.
  • Figure 5 is an isometric view of another surgical bur with a spherical tip.
  • Figure 6 is an isometric view of a surgical bur with an ovoid tip.
  • Figure 7 is an isometric view of another surgical bur with an ovoid tip.
  • Figure 8 is an isometric view of a surgical bur with a conical tip.
  • Figure 9 is an isometric view of another surgical bur with a conical tip.
  • Figure 10 is an isometric view of a surgical bur with an inverted conical tip.
  • Figure 11 an isometric view of another surgical bur with an inverted conical tip.
  • Figure 12 is an isometric view of the surgical bur illustrated in Figure 1 in use during a surgical procedure, with a fluted portion of the surgical bur adjacent a first section of hard tissue.
  • Figure 13 is an isometric view of the surgical bur in use during the surgical procedure illustrated in Figure 12, with the fluted portion of the surgical bur removing the first section of hard tissue.
  • Figure 14 is an isometric view of the surgical bur in use during the surgical procedure illustrated in Figure 13, with an abrasive surface of the surgical bur adjacent a second section of hard tissue.
  • Figure 15 is an isometric view of the surgical bur in use during the surgical procedure illustrated in Figure 14, with the abrasive surface of the surgical bur removing the second section of hard tissue.
  • Figure 16 is an isometric view of the surgical bur illustrated in Figure 1 in use during a surgical procedure, with a fluted portion of the surgical bur adjacent a first section of hard tissue.
  • a rotary tissue removal tool may be inserted through an opening (e.g., an incision) in a body to provide access to a surgical site within an interior portion of the body.
  • an opening e.g., an incision
  • the disclosed surgical bur with different tissue removal surfaces provides for multiple, synergistic advantages over conventional surgical burs.
  • the disclosed surgical bur remains within the body during removal of tissue with the different tissue removal surfaces.
  • the surgical bur disclosed herein enables a user to remove different sections of tissue at the surgical site, at different removal rates, with surfaces of different roughness values or cutting power.
  • tissue removal surfaces may be better at controlling bleeding during tissue removal.
  • the user can switch to the preferred tissue removal surface as needed and then switch back to another tissue removal surface once bleeding is no longer an issue.
  • the use of a surgical bur with multiple, different tissue treatment surfaces also reduces cleanup time and sterilization cost by reducing the number of instruments used during the procedure.
  • the surgical bur includes an elongate body having multiple tissue removal surfaces/portions.
  • the elongate body includes proximal and distal ends, opposite one another along an axis of elongation and/or a central axis.
  • the multiple tissue removal surfaces/portions may be arranged (e.g., on a tip of the elongate body) such that one of the tissue removal surfaces/portions is closer to the distal end and another of the tissue removal surfaces/portions is closer to the proximal end.
  • Some methods of use of the surgical bur include rotating the elongate body of the surgical bur about an axis (e.g., the axis of elongation and/or the central axis).
  • a first section of hard tissue is removed via contact of a fluted portion with the first section of hard tissue.
  • a second section of hard tissue is removed via contact with an abrasive surface, also while rotating the surgical bur.
  • the first and second sections of hard tissue are removed at different rates (e.g., while maintaining a constant rate of rotation of the elongate body about the axis).
  • the elongate body may be rotated by a driver or other source of rotation.
  • the method includes removing the first section of hard tissue to expose the second section of hard tissue.
  • the method may include forming a cutout within hard tissue with the fluted portion and then continuing/expanding the cutout within the hard tissue with the abrasive surface.
  • Other methods include removing separate first and second sections of hard tissue (e.g., within the same surgical site).
  • the method may include moving the tip of the surgical bur from the first section of hard tissue to the second section of hard tissue between removal of the first and second sections of hard tissue (e.g., thereby forming separate cutouts within hard tissue within the body).
  • some surgical procedures involve the insertion of surgical instruments (e.g., rotary tissue removal tools such as a surgical bur 310 supported by a drill/driver 112) through an opening (e.g., an incision 114) of a body 116 to view and/or interact with an interior portion of the body 116 (e.g., at a surgical site 118).
  • surgical instruments e.g., rotary tissue removal tools such as a surgical bur 310 supported by a drill/driver 112
  • the opening may be maintained with a working tube, such as a cannula (not shown), that defines a passageway through the opening, into the interior portion of the body 116, and to the surgical site 118.
  • a cannula holder (not shown) may be used to secure a position of the cannula (e.g., relative to a fixed reference point such as the incision 114 in the body 116 or an operating table upon which the body 116 is supported during the procedure).
  • the surgical bur 310 may include a body 322 that is elongated (e.g., along an axis 324 that is parallel to a first direction D1).
  • the body 322 may include a proximal end 326 and a distal end 328 spaced from (e.g., opposite) one another with respect to the first direction D1 such that the body 322 extends between the proximal end 326 and the distal end 328 (e.g., from the proximal end 326 to the distal end 328).
  • the surgical bur 310 may include an abrasive surface 330 with a surface roughness. The surface roughness may be between 50 and 150 grit, for example between 60 and 120 grit.
  • the surface roughness may be less than 150 grit, e.g., less than 140 grit, less than 130 grit, less than 120 grit, less than 110 grit, less than 100 grit, less than 90 grit, or less than 80 grit.
  • the first surface roughness may be greater than 50 grit, e.g., greater than 60 grit, greater than 70 grit, greater than 80 grit, greater than 90 grit, greater than 100 grit, or greater than 110 grit.
  • the first surface roughness may be between 50 grit and 150 grit, e.g., between 60 grit and 80 grit, between 80 grit and 100 grit, or between 100 grit and 120 grit.
  • the abrasive surface 330 may be formed by particles 332 that have an average size.
  • the body 322 includes a substrate 334 that is coated or embedded with the particles 332.
  • the particles 332 may be secured to the substrate 334 using methods including but not limited to laser ablation, ion-beam assisted deposition, and radio-frequency plasma deposition.
  • the particles 332 may include, but are not limited to, diamond particles (e.g., natural or synthetic diamond particles), diamond-like particles, metallic particles (e.g., steel), compounds (e.g., tungsten carbide), and other known abrasive particles used in rotary tissue cutting/removal tools.
  • the particles 332 may be a material known for use in removing hard tissue upon rotatory contact with the particles.
  • Hard tissue as described herein includes any tissue that is not “soft tissue.”
  • hard tissue includes, but is not limited to bone, enamel, dentin, cementum, and ossified tissue.
  • the surgical bur 310 may include a fluted portion 340 with a surface roughness or cutting power that is different from that of the abrasive surface 330.
  • the fluted portion 340 may include a plurality of cutting edges 342 and a plurality of flutes 344.
  • the flutes 344 may be formed by spiral grooves that extend into the body 322 toward the axis 324.
  • the surface roughness/cutting power of the abrasive surface 330 and the fluted portion 340 may be different.
  • the abrasive surface 330 may be finer (i.e., less rough with a lower cutting power) than the fluted portion 340 (i.e., the fluted portion 340 may have a higher cutting power than the abrasive surface 330).
  • the different working surfaces/portions of the surgical bur 310 may be arranged separate or discrete from one another (e.g., such that there is no overlap between adjacent ones of the different surfaces/portions) along the body 322.
  • one of the working surfaces/portions may be positioned closer to the distal end 328 of the body 322 (e.g., forming a first portion or distal portion 350) and another of the abrasive surfaces (e.g., the fluted portion 340) may be positioned closer to the proximal end 326 of the body 322 (e.g., forming a second portion or proximal portion 352).
  • the abrasive surface 330 may be finer (e.g., having a lower cutting power or tissue removal rate) and positioned closer to the distal end 328 than the fluted portion 340, which is coarser (e.g., having a higher cutting power or tissue removal rate) and positioned closer to the proximal end 326, as shown in Figures 2, 3, 7, 9, and 11.
  • the abrasive surface 330 may be positioned closer to the proximal end 326, while the fluted portion 340 is positioned closer to the distal end 328, as shown in Figures 4, 5, 6, 8, and 10.
  • the relative positions of the abrasive surface 330 and the fluted portion 340 are independent from the shape of the body 322, as described in greater detail below. Accordingly, embodiments of the disclosure include surgical burs 310 as shown in each of the illustrated embodiments, but with the positions of the abrasive surface 330 and the fluted portion 340 reversed.
  • the body 322 of the surgical bur 310 may include a tip 354 and a shaft 356. As shown, the tip 354 may extend distally from the shaft 356 toward the distal end 328 and the shaft 356 may extend proximally away from the tip 354 toward the proximal end 326.
  • the tip 354 may include the different working surfaces/portions (e.g., the abrasive surface 330 and the fluted portion 340).
  • the fluted portion 340 may be positioned between the shaft 356 and the distal end 328.
  • the abrasive surface 330 may be positioned between the shaft 356 and the distal end 328.
  • the body 322 may define a body length J1 measured from the proximal end 326 to the distal end 328 along the first direction D1 (e.g., along the axis 324).
  • the tip 354 may define a tip length J2 measured from the shaft 356 to the distal end 328 along the first direction D1, and the shaft 356 may define a shaft length J3 measured from the tip 354 to the proximal end 326 along the first direction D1.
  • the shaft length J3 is longer than the tip length J2 to enable the tip 354 to be positioned through an incision and/or cannula to reach a surgical site.
  • the surgical bur 310 is not limited to such relative lengths, and some embodiments include a greater tip length J2 than shaft length J3.
  • the abrasive surface 330 may define a length J4, and the fluted portion 340 may define a length J5, each measured along the first direction D1.
  • the length J4 of the abrasive surface 330 may be about equal (e.g., plus or minus less than five percent) to the length J5 of the fluted portion 340, as shown in Figures 3, 4, 5, and 10.
  • the length J4 of the abrasive surface 330 may be different than (e.g., plus or minus greater than five percent) of the length J5 of the fluted portion 340.
  • the length J4 of the abrasive surface 330 may be greater than the length J5 of the fluted portion 340, as shown in Figures 6 and 9.
  • the length J4 of the abrasive surface 330 may be less than the length J5 of the fluted portion 340, as shown in Figures 2, 7, 8, and 11.
  • the relative lengths J4, J5 of the abrasive surface 330 and the fluted portion 340 are independent from the shape of the body 322, as described in greater detail below. Accordingly, embodiments of the disclosure include surgical burs 310 as shown in each of the illustrated embodiments, but with the relative lengths J4, J5 of the abrasive surface 330 and the fluted portion 340 reversed and/or equal to one another.
  • the tip 354 may define an outer perimeter 358 within a longitudinal plane P that is parallel to the axis 324.
  • the axis 324 may lie entirely within the longitudinal plane P, according to some embodiments.
  • the surgical bur 310 may be symmetric about the longitudinal plane P.
  • the surgical bur 310 may be radially symmetric about the axis 324.
  • the outer perimeter 358 may define a length (e.g., the tip length J2) and a width K1 measured perpendicular to the length J2. Both the length J2 and the width K1 of the outer perimeter 358 may be measured within the longitudinal plane P.
  • the abrasive surface 330 may define a width K2 having a first maximum dimension
  • the fluted portion 340 may define a width K3 having a second maximum dimension.
  • the second maximum dimension of the width K3 may be greater than the first maximum dimension of the width K2, as shown in Figures 7, 9, and 10. According to other embodiments, the second maximum dimension of the width K3 may be less than the first maximum dimension of the width K2, as shown in Figures 6 and 8. Alternatively, the second maximum dimension of the width K3 may be substantially equal to (e.g., plus or minus less than five percent) the first maximum dimension of the width K2, as shown in Figures 2, 3, 4, 5, and 11. [0055] According to some embodiments, the width K1 of the outer perimeter 358 may be tapered, decreasing along the length J2 of the tip 354 in a direction toward the distal end 328, as shown in Figures 3, 8, and 9.
  • the outer perimeter 358 may be substantially conical, or a tapered cylinder.
  • the width K1 of the outer perimeter 358 may be an inversely tapered, increasing along the length J2 of the tip 354 in a direction toward the distal end 328, as shown in Figures 10 and 11.
  • the outer perimeter 358 may be an inverted cone or pear shaped.
  • the width K1 of the outer perimeter 358 may be constant along all or a portion of the length J2 of the tip 354 in a direction toward the distal end 328, as shown in Figures 2 and 3.
  • the outer perimeter 358 may be substantially cylindrical.
  • the outer perimeter 358 may include a double taper (e.g., increasing to a maximum along the length J2 of the tip 354 in a direction toward the distal end 328 and then decreasing from the maximum along the length J2 of the tip 354 along the direction toward the distal end 328), as shown in Figures 4, 5, 6, and 7.
  • the outer perimeter 358 may be substantially spherical or ovoidal.
  • Other shapes of the outer perimeter 358 are included in embodiments of the surgical bur 310.
  • combinations of one or more of the outer perimeters 358 above e.g., a partial sphere and a partial cylinder) may cooperatively form the outer perimeter 358 of the surgical bur 310.
  • the outer perimeter 358 may include a flat surface 360. As shown in Figures 2, 10, and 11, the flat surface 360 may form the distal end 328 of the body 322. One of the working surfaces/portions (e.g., the abrasive surface 330) may be positioned within the flat surface 360, as shown in Figure 11. For example, the particles 332 may be disposed only on the flat surface 360 and the cutting edges 342 and the flutes 344 may be disposed on a radial wall 362 that encircles the axis 324.
  • the flat surface 360 may form the distal end 328 of the body 322.
  • One of the working surfaces/portions e.g., the abrasive surface 330
  • the particles 332 may be disposed only on the flat surface 360 and the cutting edges 342 and the flutes 344 may be disposed on a radial wall 362 that encircles the axis 324.
  • the flat surface 360 may include some of the particles 332 of the abrasive surface 330, while a remainder of the particles 332 of the abrasive surface 330 are disposed on the radial wall 362. [0059] As described above, the specific combinations of outer perimeter 358, relative widths K2, K3, relative lengths J4, J5, and relative positions of the abrasive surface 330 and the fluted portion 340 may be independent from each other.
  • embodiments of the disclosure include outer perimeters 358 as shown in each of the illustrated embodiments, but with the relative widths K2, K3, lengths J4, J5, positions, or any combination thereof of the abrasive surface 330 and the fluted portion 340 reversed or changed to match what is shown for other shapes of the outer perimeter 358.
  • some embodiments of the surgical bur 310 may include additional sections of abrasive and/or smooth, non-abrasive portions.
  • the tip 354 may include a non- abrasive surface 364 positioned between the abrasive surface 330 and the fluted portion 340, as shown in Figure 5.
  • the non-abrasive surface 364 may be described as an intermediate portion.
  • Embodiments of the surgical bur 310 with other sizes and positions of the non-abrasive surface 364 are included within the present disclosure.
  • a method of removing tissue that includes a first section of hard tissue 200 and a second section of hard tissue 202 may include use of the surgical bur 310.
  • the body 322 of the surgical bur 310 may be rotated (e.g., about the axis 324).
  • Rotation of the body 322 may include attachment of the surgical bur 310 to the drill/driver 112 (as shown in Figure 1) or some other source of rotation.
  • the method may include removing the first section of hard tissue 200 with one of the working surfaces/portions of the tip 354 (e.g., the fluted portion 340 as shown in Figures 13 and 17), wherein the removing is conducted by rotating the body 322 about the axis 324 and bringing the rotating fluted portion 340 into rotating contact with the first section of hard tissue 200.
  • the method may further include removing the second section of hard tissue 202 with another of the working surfaces of the tip 354 (e.g., the abrasive surface 330 as shown in Figures 15 and 19).
  • the first section of hard tissue 200 may be removed at a first removal rate
  • the second section of hard tissue 202 may be removed at a second removal rate.
  • the first and second removal rates may be different (e.g., with the abrasive surface 330 having a slower removal rate and the fluted portion 340 having a faster removal rate).
  • the first and second removal rates may be independent from a rotational speed of the surgical bur 310.
  • the surgical bur 310 may be rotated at a constant speed while removing the first section of hard tissue 200 at the first removal rate, and removing the second section of hard tissue 202 at the second removal rate.
  • the first section of hard tissue 200 and the second section of hard tissue 202 may be adjacent portions of the same bone (e.g., a vertebral body).
  • removing the first section of hard tissue 200 exposes the second section of hard tissue 202, as shown in Figures 12 to 15.
  • the first section of hard tissue 200 and the second section of hard tissue 202 may be separate portions of the same bone (e.g., a vertebral body) or different bones (e.g., adjacent vertebral bodies).
  • the method may include moving the tip 354 (e.g., and the abrasive surface 330 and the fluted portion 340) from a first location that includes the first section of hard tissue 200 to a second location that includes the second section of hard tissue 202, as shown in Figures 16 to 19.
  • the abrasive surface 330 and the fluted portion 340 may be moved through the incision 114 and into the body 116 before being advanced to a surgical site 118 that includes both the first section of hard tissue 200 and the second section of hard tissue 202.
  • the tip 354 (including the abrasive surface 330 and the fluted portion 340) remains within the body 116 (e.g., at the surgical site 118) until both the first section of hard tissue 200 and the second section of hard tissue 202 are removed. In other words, the tip 354 is not removed from the body 116 (e.g., is not withdrawn through the incision 114) until both the first section of hard tissue 200 and the second section of hard tissue 202 are removed.
  • a cannula may be used as part of the method to maintain a rigid passageway through the incision 114 (e.g., formed by a lumen of the cannula).
  • the method may include moving the abrasive surface 330 and the fluted portion 340 through the lumen of the cannula, and positioning the shaft 356 of the body 322 within the lumen. A portion of the shaft 356 may remain within the lumen until both the first and second sections of hard tissue 200, 202 are removed.
  • any or some of the components or steps disclosed herein may be considered optional.
  • the disclosed compositions may expressly exclude any or some of the aforementioned elements or steps in this description, e.g., via claim language.

Landscapes

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

Abstract

Sont divulgués ici des composants, des systèmes et des procédés pour éliminer un tissu dur d'un site chirurgical à l'intérieur d'un corps à travers une incision pratiquée dans le corps. Une fraise chirurgicale comprend un corps comportant une pointe doté de multiples surfaces de travail. La pointe (354) comprend une surface abrasive (330) et une partie cannelée (340). La surface abrasive et les parties cannelées présentent des vitesses d'élimination de tissu différentes lorsqu'elles sont mises en contact en rotation avec un tissu dur. Un procédé d'utilisation consiste à retirer une première section de tissu dur avec la partie cannelée et à retirer une seconde section de tissu dur avec la surface abrasive sans retirer la pointe du corps.
PCT/US2025/023021 2024-04-05 2025-04-03 Fraise hybride et ses procédés d'utilisation pour éliminer un tissu dur Pending WO2025212935A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202463575467P 2024-04-05 2024-04-05
US63/575,467 2024-04-05

Publications (1)

Publication Number Publication Date
WO2025212935A1 true WO2025212935A1 (fr) 2025-10-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2025/023021 Pending WO2025212935A1 (fr) 2024-04-05 2025-04-03 Fraise hybride et ses procédés d'utilisation pour éliminer un tissu dur

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Country Link
WO (1) WO2025212935A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050209610A1 (en) * 2004-03-03 2005-09-22 Scimed Life Systems, Inc. Radially adjustable tissue removal device
US20140241819A1 (en) * 2013-02-27 2014-08-28 C. John Munce Safety Head Bur
US20170319225A1 (en) * 2015-03-19 2017-11-09 Neuroenterprises, Llc Tissue shaver and methods of use
JP2022099795A (ja) * 2020-12-23 2022-07-05 株式会社ナカニシ 外科用バー
CN219501103U (zh) * 2022-12-12 2023-08-11 山东电力中心医院 一种侧路椎间孔镜手术专用磨钻

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050209610A1 (en) * 2004-03-03 2005-09-22 Scimed Life Systems, Inc. Radially adjustable tissue removal device
US20140241819A1 (en) * 2013-02-27 2014-08-28 C. John Munce Safety Head Bur
US20170319225A1 (en) * 2015-03-19 2017-11-09 Neuroenterprises, Llc Tissue shaver and methods of use
JP2022099795A (ja) * 2020-12-23 2022-07-05 株式会社ナカニシ 外科用バー
CN219501103U (zh) * 2022-12-12 2023-08-11 山东电力中心医院 一种侧路椎间孔镜手术专用磨钻

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