WO1993009731A1 - Surgical tool for rounding off the edge of a drilled hole in a bone - Google Patents

Surgical tool for rounding off the edge of a drilled hole in a bone Download PDF

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Publication number
WO1993009731A1
WO1993009731A1 PCT/GB1992/002000 GB9202000W WO9309731A1 WO 1993009731 A1 WO1993009731 A1 WO 1993009731A1 GB 9202000 W GB9202000 W GB 9202000W WO 9309731 A1 WO9309731 A1 WO 9309731A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
hole
tubular member
drive shaft
tool
Prior art date
Application number
PCT/GB1992/002000
Other languages
French (fr)
Inventor
Angus Everett Strover
Original Assignee
United Surgical Services Limited
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 United Surgical Services Limited filed Critical United Surgical Services Limited
Publication of WO1993009731A1 publication Critical patent/WO1993009731A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/102—Back spot-facing or chamfering
    • 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
    • A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1675—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the knee
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B2017/320004—Surgical cutting instruments abrasive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/08—Muscles; Tendons; Ligaments

Definitions

  • This invention relates to a surgical tool for use areas with difficult access, such as adjacent to the intern end of a drilled hole in a bone entering the knee joint, b not limited thereto.
  • the tool may be a radiussing tool for rounding off ( merely bevelling) the internal end edge of a drilled hole in bone, particularly for avoidance of damage to an artifici ligament subsequently emerging from that end of the hole, it may be a cutting tool for cutting tissue adjacent to t internal end of a drilled hole in a bone.
  • a radiussing cutter comprising a tubul member adapted to be passed through a drilled hole in a bo from the external end, an arcuate blade movable from whol within the tubular member to a position projecting through slot in the tubular member adjacent the distal end, a pus pull rod for moving the blade between projecting and retract positions extending to an actuating knob at the proximal e of the tubular member and handle means on the proximal end the tubular member to enable the cutter to be oscillated a intermittently rotated to work the blade round the intern end edge of the drilled hole.
  • radiussing tool comprises a head having a maximum diameter n greater than a drilled hole in a bone the internal end edge of which it is intended to round off, a drive shaft co-axially attachable to the head, the head having adjacent the attachment to the drive shaft an abrasive surface of revolution with a profile (which is advantageously concave) converging towards the drive shaft, a tubular member having at a distal end an entry opening for the drive shaft and having at the proximal end an exit opening for the drive shaft, means at the proximal end of the drive shaft for attachment of power driving means, handgrip means adjacent the proximal end of the tubular member for guiding the tubular member both axially and rotationally, and biassing means associated with the tubular member whereby, after the head has been pushed through the drilled hole from the external end and has emerged from the internal end of the hole, the head is caused to move eccentrically with respect to the hole, so that the head can be pulled partially into the internal end
  • the head After attachment of power drive means, which may be rotary or oscillatory, to enable the abrasive surface of the head to abrade the internal end edge of the hole, the head is carried round that edge by the tubular member being rotated or oscillated by means of the handgrip means adjacent the proximal end.
  • power drive means which may be rotary or oscillatory
  • the entry and exit openings for the drive shaft are preferably coaxial with the tubular member and the biassing means consists of a guide member having a guide surface (which is conveniently generally cylindrical) or guide surfac eccentric to the tubular member and adapted to make a clo sliding fit in the drilled hole in the bone; whereby, when t head has been pushed through the drilled hole from t external end by means of the tubular member until the he emerges from the internal end of the hole, the guide memb can be fed into the hole in the bone, so causing the head adopt an eccentric position with respect to the hole.
  • a guide member having a guide surface (which is conveniently generally cylindrical) or guide surfac eccentric to the tubular member and adapted to make a clo sliding fit in the drilled hole in the bone
  • the guide member may be detachable from the tubul member to enable it to be interchangeable with at least o similar guide member to suit a different diameter of hole in bone.
  • the (or each) guide member may have cylindrical stem with a longitudinal groove making a clo sliding fit on the tubular member, the proximal end of t guide member having a knob forming handgrip means for pushi the stem of the guide member into the hole in the bone and f rotating the guide member to effect orbitting the head (wi the tubular member) round the hole, a knob also preferab being provided on the proximal end of the tubular member form axial handgrip means for pushing the head through t hole in the bone and (after the guide member has been fed in the hole) for pulling the head partially into the internal e of the hole.
  • the entry opening of the tubular member preferab includes a low-friction bearing for the drive shaft, which h an annular end for abutment by an annular shoulder of t head.
  • a low-friction bearing may also be provided adjace the exit opening of the tubular member.
  • the head may be formed of abrasive material, e.g., carborundum, or may be formed of non-abrasive material, e.g., carbon or stainless steel or a ceramic, with its profiled surface having abrasive particles bonded thereto, such as carborundum or industrial diamonds.
  • the head is preferably interchangeably connected to the drive shaft to enable use of heads with variations of profile and abrasive qualities.
  • the tubular member and/or the drive shaft may incorporate one or more cannula, for an irrigation and/or extraction system for removal of bone debris.
  • a cutting tool for cutting tissue adjacent the internal end of a hole drilled in a bone is similar to the abrading tool described above, being modified by replacing the abrading head by a head provided with cutting edges along all or part of its profile, the cutter head likewise preferably being interchangeably connected to the drive shaft to enable use of heads with variations of profile and cutting ability.
  • Figure 1 is a side elevation of a radiussing tool in accordance with the first aspect of the invention
  • Figure 2 is an elevation of the guide member shown in Figure 1 as seen from the right hand side of Figure 1;
  • Figure 3 is a part-sectional plan of the guide member taken from the line III-III of Figure 2;
  • Figures 4 and 5 and Figures 6 and 7 are pairs of views corresponding to Figures 2 and 3 but showing guide members fo different diameters of holes in bones and interchangeable wit the guide member of Figures 1 to 3;
  • Figure 8 is an enlarged fragmentary part-sectiona view of the upper end of Figure 1;
  • Figures 9, 10 and 11 are diagrammatic views showin how the radiussing tool of Figure 1 is introduced into a hol in a bone and the abrasive head is brought into operativ position by means of the guide member of Figures 1 to 3;
  • Figure 12 is an enlarged fragmentary vie corresponding to the top of Figure 11, after the abrasive hea has been used to radius the internal end of the hole;
  • Figure 13 corresponds to Figure 12 but shows th effect on an internal end edge of a hole in a plane at a angle other than 90° to the axis of the hole;
  • Figure 14 corresponds to the lower end of Figure with an indication of power drive means and irrigation and/o debris extraction system attached thereto;
  • Figure 15 corresponds to Figure 1 but shows a cutte head in place of the abrading head.
  • the radiussing tool shown in Figure 1 comprises a hea
  • a drive shaft 24 co axially attachable to the head 20, the head having adjacen the attachment to the drive shaft an abrasive surface 25 o revolution with a concave profile converging towards the driv shaft, a tubular member 26 having at a distal end 27 an entr opening (see Figure 8) for the drive shaft and having at the proximal end 28 an exit opening for the drive shaft, means 29 at the proximal end of the drive shaft 24 for attachment of power driving means (indicated in Figure 14), handgrip means 30 adjacent the proximal end 28 of the tubular member 26 for guiding the tubular member both axially and rotationally, and biassing means 31 associated with the tubular member whereby, after the head 20 has been pushed through the drilled hole 21 from the external end (see Figure 9) and has emerged from the internal end of the hole (see Figure 10), the head is caused to move eccentrically
  • the entry and exit openings for the drive shaft 24 are coaxial with the tubular member 26 and the biassing means 31 consists of a guide member having a guide surface 33, which is generally cylindrical, eccentric to the tubular member and making a close sliding fit in the drilled hole 21 in the bon 22.
  • the guide surface 33 is provided on a ste with longitudinal groove 34 making a close sliding fit on th tubular member, so that the guide member is detachable fro the tubular member to enable it to be interchangeable wit similar guide members 31X and 31Y (see Figures 4 and 5 an Figures 5 and 6 respectively) to suit different diameters o holes in bones.
  • a knurled knot 35 is provided on th proximal end of the guide member 31 (or 31X or 31Y) formin rotational handgrip means for pushing the stem of the guid member into the hole in the bone and for rotating the guid member to effect orbitting of the abrasive head 20 (with th tubular member 26) round the hole.
  • the entry opening of the tubular member 26 includes low-friction bearing 36 ( Figure 8) for the drive shaft 24 which has an annular end 37 for abutment by an annula shoulder 38 of the head 20.
  • a low-friction bearing (no shown) may also be provided adjacent the exit opening of th tubular member.
  • the head 20 (which may be formed of abrasive material e.g., carborundum, or may be formed of non-abrasive material e.g., carbon or stainless steel or a ceramic, with it profiled surface having abrasive particles bonded thereto ' such as carborundum or industrial diamonds) is interchangeabl connected to the drive shaft 24 (by providing a screwed spigo 39 concentric with the shoulder 38 screwing into the adjacen end of the drive shaft) to enable use of heads with variation of profile and abrasive qualities.
  • abrasive material e.g., carborundum
  • non-abrasive material e.g., carbon or stainless steel or a ceramic
  • the tubular member 26 and the drive shaft 24 incorporate cannulae 40, 41 for an irrigation and extraction system for removal of bone debris, the cannula 40 in the tubular member being adapted to communicate with the inside of the hole in the bone through holes 42 in the wall of the tubular member, and the cannula 41 in the drive shaft communicating with the inside of the tubular member through a slot 43 extending along a major length of the drive shaft.
  • Figure 14 includes (in addition to an indication of power driving means 32) an indication of connecting means 44, 45 for the irrigation and extraction system.
  • the cutting tool shown in Figure 15, for cutting tissue adjacent the internal end of a hole drilled in a bone is similar to the abrading tool desribed above, being modified by replacing the abrading head 20 by a head 50 provided with cutting edges 51 along all (or part) of its profile, the cutter head likewise preferably being interchangeably connected to the drive shaft 24 to enable use of heads with variations of profile and cutting ability.

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

Abstract

A radiussing tool comprises an abrasive head (20) having a maximum diameter not greater than a drilled hole (21) in a bone (22) the internal end edge (23) of which it is intended to round off, a drive shaft (24) attachable at one end to the head at the distal end (27) of a tubular member (26), means at the other end of the shaft (24) for attaching a power drive, handgrip means (30) for guiding the tubular member (26) and detachable biassing means (31) having a cylindrical stem (33) making a sliding fit within the hole (21) and a longitudinal groove (34) making a close sliding fit on the tubular member (26) to move the head (20) eccentrically after it has emerged from the inner end (23) of the hole, for the profiled underside (25) of the head to be brought into abrading contact with the inner end edge of the hole around which it is orbitted by rotation of the biassing means (31) with the aid of a knurled knob (35) as the power means rotates the head (20) through the shaft (24).

Description

SURGICAL TOOL FOR ROUNDING OFF THE EDGE OF A DRILLED HOLE IN A BONE
This invention relates to a surgical tool for use areas with difficult access, such as adjacent to the intern end of a drilled hole in a bone entering the knee joint, b not limited thereto. The tool may be a radiussing tool for rounding off ( merely bevelling) the internal end edge of a drilled hole in bone, particularly for avoidance of damage to an artifici ligament subsequently emerging from that end of the hole, it may be a cutting tool for cutting tissue adjacent to t internal end of a drilled hole in a bone.
A radiussing cutter is known comprising a tubul member adapted to be passed through a drilled hole in a bo from the external end, an arcuate blade movable from whol within the tubular member to a position projecting through slot in the tubular member adjacent the distal end, a pus pull rod for moving the blade between projecting and retract positions extending to an actuating knob at the proximal e of the tubular member and handle means on the proximal end the tubular member to enable the cutter to be oscillated a intermittently rotated to work the blade round the intern end edge of the drilled hole.
Use of such a cutter is slow and laborious, so o aspect of the present invention has as its object to provi a powered radiussing tool adapted to perform the same similar functions.
According to one aspect of the present invention, radiussing tool comprises a head having a maximum diameter n greater than a drilled hole in a bone the internal end edge of which it is intended to round off, a drive shaft co-axially attachable to the head, the head having adjacent the attachment to the drive shaft an abrasive surface of revolution with a profile (which is advantageously concave) converging towards the drive shaft, a tubular member having at a distal end an entry opening for the drive shaft and having at the proximal end an exit opening for the drive shaft, means at the proximal end of the drive shaft for attachment of power driving means, handgrip means adjacent the proximal end of the tubular member for guiding the tubular member both axially and rotationally, and biassing means associated with the tubular member whereby, after the head has been pushed through the drilled hole from the external end and has emerged from the internal end of the hole, the head is caused to move eccentrically with respect to the hole, so that the head can be pulled partially into the internal end of the hole for that end edge of the hole to be contacted by the abrasive surface of the head. After attachment of power drive means, which may be rotary or oscillatory, to enable the abrasive surface of the head to abrade the internal end edge of the hole, the head is carried round that edge by the tubular member being rotated or oscillated by means of the handgrip means adjacent the proximal end.
The entry and exit openings for the drive shaft are preferably coaxial with the tubular member and the biassing means consists of a guide member having a guide surface (which is conveniently generally cylindrical) or guide surfac eccentric to the tubular member and adapted to make a clo sliding fit in the drilled hole in the bone; whereby, when t head has been pushed through the drilled hole from t external end by means of the tubular member until the he emerges from the internal end of the hole, the guide memb can be fed into the hole in the bone, so causing the head adopt an eccentric position with respect to the hole.
The guide member may be detachable from the tubul member to enable it to be interchangeable with at least o similar guide member to suit a different diameter of hole in bone. Thus, the (or each) guide member may have cylindrical stem with a longitudinal groove making a clo sliding fit on the tubular member, the proximal end of t guide member having a knob forming handgrip means for pushi the stem of the guide member into the hole in the bone and f rotating the guide member to effect orbitting the head (wi the tubular member) round the hole, a knob also preferab being provided on the proximal end of the tubular member form axial handgrip means for pushing the head through t hole in the bone and (after the guide member has been fed in the hole) for pulling the head partially into the internal e of the hole.
The entry opening of the tubular member preferab includes a low-friction bearing for the drive shaft, which h an annular end for abutment by an annular shoulder of t head. A low-friction bearing may also be provided adjace the exit opening of the tubular member. The head may be formed of abrasive material, e.g., carborundum, or may be formed of non-abrasive material, e.g., carbon or stainless steel or a ceramic, with its profiled surface having abrasive particles bonded thereto, such as carborundum or industrial diamonds. The head is preferably interchangeably connected to the drive shaft to enable use of heads with variations of profile and abrasive qualities.
The tubular member and/or the drive shaft may incorporate one or more cannula, for an irrigation and/or extraction system for removal of bone debris.
According to another aspect of the present invention, a cutting tool for cutting tissue adjacent the internal end of a hole drilled in a bone is similar to the abrading tool described above, being modified by replacing the abrading head by a head provided with cutting edges along all or part of its profile, the cutter head likewise preferably being interchangeably connected to the drive shaft to enable use of heads with variations of profile and cutting ability.
Embodiments of the invention will now be described by way of example only, with reference to the accompanying drawings, in which:-
Figure 1 is a side elevation of a radiussing tool in accordance with the first aspect of the invention;
Figure 2 is an elevation of the guide member shown in Figure 1 as seen from the right hand side of Figure 1;
Figure 3 is a part-sectional plan of the guide member taken from the line III-III of Figure 2;
Figures 4 and 5 and Figures 6 and 7 are pairs of views corresponding to Figures 2 and 3 but showing guide members fo different diameters of holes in bones and interchangeable wit the guide member of Figures 1 to 3;
Figure 8 is an enlarged fragmentary part-sectiona view of the upper end of Figure 1;
Figures 9, 10 and 11 are diagrammatic views showin how the radiussing tool of Figure 1 is introduced into a hol in a bone and the abrasive head is brought into operativ position by means of the guide member of Figures 1 to 3; Figure 12 is an enlarged fragmentary vie corresponding to the top of Figure 11, after the abrasive hea has been used to radius the internal end of the hole;
Figure 13 corresponds to Figure 12 but shows th effect on an internal end edge of a hole in a plane at a angle other than 90° to the axis of the hole;
Figure 14 corresponds to the lower end of Figure with an indication of power drive means and irrigation and/o debris extraction system attached thereto; and
Figure 15 corresponds to Figure 1 but shows a cutte head in place of the abrading head.
The radiussing tool shown in Figure 1 comprises a hea
20 having a maximum diameter D not greater than a drilled hol
21 and a bone 22 (see Figures 9 to 11) the internal end edg 23 of which it is intended to round off, a drive shaft 24 co axially attachable to the head 20, the head having adjacen the attachment to the drive shaft an abrasive surface 25 o revolution with a concave profile converging towards the driv shaft, a tubular member 26 having at a distal end 27 an entr opening (see Figure 8) for the drive shaft and having at the proximal end 28 an exit opening for the drive shaft, means 29 at the proximal end of the drive shaft 24 for attachment of power driving means (indicated in Figure 14), handgrip means 30 adjacent the proximal end 28 of the tubular member 26 for guiding the tubular member both axially and rotationally, and biassing means 31 associated with the tubular member whereby, after the head 20 has been pushed through the drilled hole 21 from the external end (see Figure 9) and has emerged from the internal end of the hole (see Figure 10), the head is caused to move eccentrically with respect to the hole, so that the head can be pulled partially into the internal end of the hole for that end edge 23 of the hole to be contacted by the abrasive surface 25 of the head. After attachment of power drive means 32 (see Figure
14) which may be oscillatory or rotary, to the attachment means 29, to enable the abrasive surface 25 of the head to abrade the internal end edge 23 of the hole 21, the head is carried round that edge by the tubular member 26 being rotated or oscillated by means of the handgrip means 30 adjacent the proximal end 28. The resultant radiussing of the internal end edge 23 is illustrated by Figure 12 and the effect on an internal end edge 23X of a hole in a plane at an angle other than 90° to the axis of the hole is illustrated by Figure 13. The entry and exit openings for the drive shaft 24 are coaxial with the tubular member 26 and the biassing means 31 consists of a guide member having a guide surface 33, which is generally cylindrical, eccentric to the tubular member and making a close sliding fit in the drilled hole 21 in the bon 22. The guide surface 33 is provided on a ste with longitudinal groove 34 making a close sliding fit on th tubular member, so that the guide member is detachable fro the tubular member to enable it to be interchangeable wit similar guide members 31X and 31Y (see Figures 4 and 5 an Figures 5 and 6 respectively) to suit different diameters o holes in bones. A knurled knot 35 is provided on th proximal end of the guide member 31 (or 31X or 31Y) formin rotational handgrip means for pushing the stem of the guid member into the hole in the bone and for rotating the guid member to effect orbitting of the abrasive head 20 (with th tubular member 26) round the hole.
The entry opening of the tubular member 26 includes low-friction bearing 36 (Figure 8) for the drive shaft 24 which has an annular end 37 for abutment by an annula shoulder 38 of the head 20. A low-friction bearing (no shown) may also be provided adjacent the exit opening of th tubular member. The head 20 (which may be formed of abrasive material e.g., carborundum, or may be formed of non-abrasive material e.g., carbon or stainless steel or a ceramic, with it profiled surface having abrasive particles bonded thereto 'such as carborundum or industrial diamonds) is interchangeabl connected to the drive shaft 24 (by providing a screwed spigo 39 concentric with the shoulder 38 screwing into the adjacen end of the drive shaft) to enable use of heads with variation of profile and abrasive qualities. The tubular member 26 and the drive shaft 24 incorporate cannulae 40, 41 for an irrigation and extraction system for removal of bone debris, the cannula 40 in the tubular member being adapted to communicate with the inside of the hole in the bone through holes 42 in the wall of the tubular member, and the cannula 41 in the drive shaft communicating with the inside of the tubular member through a slot 43 extending along a major length of the drive shaft. Figure 14 includes (in addition to an indication of power driving means 32) an indication of connecting means 44, 45 for the irrigation and extraction system.
The cutting tool shown in Figure 15, for cutting tissue adjacent the internal end of a hole drilled in a bone is similar to the abrading tool desribed above, being modified by replacing the abrading head 20 by a head 50 provided with cutting edges 51 along all (or part) of its profile, the cutter head likewise preferably being interchangeably connected to the drive shaft 24 to enable use of heads with variations of profile and cutting ability.

Claims

1. A radiussing tool comprising a head having maximum diameter not greater than a drilled hole in a bone th internal end edge of which it is intended to round off, drive shaft co-axially attachable to the head, the head havin adjacent the attachment to the drive shaft an abrasive surfac of revolution with a profile (which is advantageously concave converging towards the drive shaft, a tubular member having a a distal end an entry opening for the drive shaft and havin at the proximal end an exit opening for the drive shaf , mean at the proximal end of the drive shaft for attachment o power driving means, handgrip means adjacent the proximal en of the tubular member for guiding the tubular member bot axially and rotationally, and biassing means associated wit the tubular member whereby, after the head has been pushe through the drilled hole from the external end and has emerge from the internal end of the hole, the head is caused to mov eccentrically with respect to the hole, so that the head ca be pulled partially into the internal end of the hole for tha end edge of the hole to be contacted by the abrasive surfac of the head.
2. A radiussing tool as in Claim 1, wherein th entry and exit openings for the drive shaft are coaxial wit the tubular member and the biassing means consists of a guid member having a guide surface or guide surfaces eccentric t the tubular member and adapted to make a close sliding fit i the drilled hole in the bone.
3. A radiussing tool as in Claim 1 or Claim 2 wherein the guide member is detachable from the tubular member to enable it to be interchangeable with at least one similar guide member to suit a different diameter of hole in a bone.
4. A radiussing tool as in Claim 3, wherein the guide member has a cylindrical stem with a longitudinal groove making a close sliding fit on the tubular member, the proximal end of the guide member having a knob forming handgrip means for pushing the stem of the guide member into the hole in the bone and for rotating the guide member to effect orbitting the head round the hole.
5. A radiussing tool as in Claim 4, wherein a knob is being provided on the proximal end of the tubular member to form axial handgrip means for pushing the head through the hole in the bone and for pulling the head partially into the internal end of the hole.
6. A radiussing tool as in Claim 2, wherein the entry opening of the tubular member includes a low-friction bearing for the drive shaft, which has an annular end for abutment by an annular shoulder of the head.
7. A radiussing tool as in Claim 6, wherein a low- friction bearing is provided adjacent the exit opening of the tubular member.
8. A radiussing tool as in any one of Claims 1 to 7, wherein the head is interchangeably connected to the drive shaft to enable use of heads with variations of profile and abrasive qualities.
9. A radiussing tool as in any one of Claims 1 to 8, wherein the tubular member and/or the drive shaft incorporates one or more cannula, for an irrigation and/or extractio system for removal of bone debris.
10. A cutting tool for cutting tissue adjacent th internal end of a hole drilled in a bone similar to th abrading tool as defined in any one of Claims 1 to 9 modifie by replacing the abrading head by a head provided with cuttin edges along all or part of its profile.
11. A cutting tool as in Claim 10, wherein th cutter head is interchangeably connected to the drive shaft t enable use of heads with variations of profile and cuttin ability.
PCT/GB1992/002000 1991-11-16 1992-11-02 Surgical tool for rounding off the edge of a drilled hole in a bone WO1993009731A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919124423A GB9124423D0 (en) 1991-11-16 1991-11-16 Surgical tool
GB9124423.6 1991-11-16

Publications (1)

Publication Number Publication Date
WO1993009731A1 true WO1993009731A1 (en) 1993-05-27

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AU (1) AU2893492A (en)
GB (1) GB9124423D0 (en)
IL (1) IL103636A0 (en)
WO (1) WO1993009731A1 (en)

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DE10022047C1 (en) * 2000-04-27 2001-09-27 Itsko Polevoi Surgical cutter, to remove skull material, has radially-projecting cutters distributed around its edges and larger diameter release body that is free of cutters or sharp edges at free end
DE10038480A1 (en) * 2000-08-07 2002-03-14 Wolf Gmbh Richard Milling cutter for tissue
WO2005058541A1 (en) * 2003-12-10 2005-06-30 Iobb Produktideen Vorausentwicklung Und Problemlö Sungen Gmbh Method for universal deburring of bore edges and tool therefor
US9750509B2 (en) 2004-03-03 2017-09-05 Boston Scientific Scimed, Inc. Radially adjustable tissue removal device
WO2017182673A1 (en) * 2016-04-22 2017-10-26 Skajster Familienstiftung Surgical milling cutter
CN108042221A (en) * 2017-12-26 2018-05-18 广州市健齿生物科技有限公司 A kind of personalized bone drill by high-frequency vibration reaming

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US10843325B2 (en) * 2017-03-08 2020-11-24 DePuy Synthes Products, Inc. Quick coupling apparatus on instrument handle
CN113749730A (en) * 2021-10-12 2021-12-07 宿迁市第一人民医院 Bone scraping device for joint surgery

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DE3629562C1 (en) * 1986-08-30 1987-11-12 Bettermann Obo Ohg Drill for making a conical undercut in a predrilled cylindrical hole
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DE10022047C1 (en) * 2000-04-27 2001-09-27 Itsko Polevoi Surgical cutter, to remove skull material, has radially-projecting cutters distributed around its edges and larger diameter release body that is free of cutters or sharp edges at free end
DE10038480A1 (en) * 2000-08-07 2002-03-14 Wolf Gmbh Richard Milling cutter for tissue
DE10038480C2 (en) * 2000-08-07 2002-07-18 Wolf Gmbh Richard Milling cutter for tissue
US6565587B1 (en) 2000-08-07 2003-05-20 Richard Wolf Gmbh Cutter for removing tissue
WO2005058541A1 (en) * 2003-12-10 2005-06-30 Iobb Produktideen Vorausentwicklung Und Problemlö Sungen Gmbh Method for universal deburring of bore edges and tool therefor
US9750509B2 (en) 2004-03-03 2017-09-05 Boston Scientific Scimed, Inc. Radially adjustable tissue removal device
WO2017182673A1 (en) * 2016-04-22 2017-10-26 Skajster Familienstiftung Surgical milling cutter
US10918395B2 (en) 2016-04-22 2021-02-16 Skajster Familienstiftung Surgical milling cutter
CN108042221A (en) * 2017-12-26 2018-05-18 广州市健齿生物科技有限公司 A kind of personalized bone drill by high-frequency vibration reaming
CN108042221B (en) * 2017-12-26 2023-08-29 广东健齿生物科技有限公司 Personalized bone drill through high-frequency vibration reaming

Also Published As

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IL103636A0 (en) 1993-04-04
AU2893492A (en) 1993-06-15
GB9124423D0 (en) 1992-01-08

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