NZ767417B2 - Acetabular reamer handle and method of reaming an acetabulum - Google Patents
Acetabular reamer handle and method of reaming an acetabulum Download PDFInfo
- Publication number
- NZ767417B2 NZ767417B2 NZ767417A NZ76741719A NZ767417B2 NZ 767417 B2 NZ767417 B2 NZ 767417B2 NZ 767417 A NZ767417 A NZ 767417A NZ 76741719 A NZ76741719 A NZ 76741719A NZ 767417 B2 NZ767417 B2 NZ 767417B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- shaft section
- distal
- additional
- acetabular reamer
- neck part
- Prior art date
Links
Classifications
-
- 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
- A61B17/1631—Special drive shafts, e.g. flexible shafts
-
- 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
- A61B17/1664—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1666—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the acetabulum
Abstract
acetabular reamer handle comprising a hollow shaft (20) having a plurality of shaft sections including a distal shaft section (20A) having a distal end and a proximal end, and an additional shaft section (20B) having a distal end that is pivotally attached (170) to the proximal end of the distal shaft section to allow the additional shaft section and the distal shaft section to be adjustably oriented at an angle. The handle also includes a hollow neck part (6) having a longitudinal axis (46). The handle further includes a drive line (40) having a head part (42) mounted for rotation about the longitudinal axis and connectable to a reamer (not shown). A distal end of the distal shaft section is pivotally attached (70) to a proximal end of the neck part to allow the distal shaft section and the neck part to be adjustably oriented at an angle. The provided handle can be adjusted to suit the approach taken during surgery, or the surgeon's personal preferences without requiring a surgical kit containing different kinds of reamer handles as is typically the case.
Claims (19)
1. An acetabular reamer handle comprising: a hollow shaft having a plurality of shaft sections comprising: a distal shaft section having a distal end and a proximal end; and an additional shaft section having a distal end that is pivotally attached to the proximal end of the distal shaft section to allow the additional shaft section and the distal shaft section to be adjustably oriented at an angle relative to each other; a hollow neck part having a longitudinal axis; a driveline extending through the shaft and the neck part, wherein a head part of the driveline is mounted for rotation about the longitudinal axis of the neck part and is connectable to an acetabular reamer, wherein the distal end of the distal shaft section is pivotally attached to a proximal end of the neck part to allow the distal shaft section and the neck part to be adjustably oriented at an angle relative to each other.
2. The acetabular reamer handle of claim 1, further comprising: a distally facing engagement surface located at the distal end of the distal shaft section; and a plurality of engagement surfaces located at the proximal end of the neck part, wherein the neck part is pivotable with respect to the distal shaft section to present each one of said plurality of engagement surfaces to the distally facing engagement surface located at the distal end of the distal shaft section to orient the neck part and the distal shaft section at a respective angle relative to each other.
3. The acetabular reamer handle of claim 2, wherein the distally facing engagement surface of the distal shaft section is provided on an engagement member, wherein the engagement member is resiliently biased distally to urge the distally facing engagement surface of the distal shaft section against one of the plurality of engagement surfaces located at a proximal end of the neck part to resist relative movement between the neck part and the distal shaft section.
4. The acetabular reamer handle of claim 3, wherein the engagement member is proximally retractable along a longitudinal axis of the distal shaft section for disengaging the distally facing engagement surface of the distal shaft section from an engagement surface located at a proximal end of the neck part, to allow the neck part to pivot freely with respect to the distal shaft section.
5. The acetabular reamer handle of claim 3 or claim 4, wherein the engagement member is substantially tubular and wherein the driveline passes through a centre of the engagement member.
6. The acetabular reamer handle of any one of claims 3 to 5, wherein the engagement member is provided as a sleeve on an outer surface of the distal shaft section.
7. The acetabular reamer handle of any one of claims 2 to 6, wherein the distally facing engagement surface located at the distal end of the distal shaft section is substantially ring shaped.
8. The acetabular reamer handle of any one of claims 2 to 7, wherein the distally facing engagement surface and each of the plurality of engagement surfaces located at the proximal end of the neck part are substantially flat.
9. The acetabular reamer handle of any preceding claim, further comprising: a distally facing engagement surface located at the distal end of the additional shaft section; and a plurality of engagement surfaces located at the proximal end of the distal shaft section, wherein the distal shaft section is pivotable with respect to the additional shaft section to present each one of said plurality of engagement surfaces of the distal shaft section to the distally facing engagement surface located at the distal end of the additional shaft section to orient the distal shaft section and the additional shaft section at a respective angle relative to each other.
10. The acetabular reamer handle of claim 9, wherein the distally facing engagement surface of the additional shaft section is provided on an engagement member, wherein the engagement member of the additional shaft section is resiliently biased distally to urge the distally facing engagement surface of the additional shaft section against one of said plurality of engagement surfaces located at the proximal end of the distal shaft section to resist relative movement between the distal shaft section and the additional shaft section.
11. The acetabular reamer handle of claim 10, wherein the engagement member of the additional shaft section is proximally retractable along a longitudinal axis of the additional shaft section for disengaging the distally facing engagement surface of the additional shaft section from an engagement surface located at the proximal end of the distal shaft section, to allow the distal shaft section to pivot freely with respect to the additional shaft section.
12. The acetabular reamer handle of claim 10 or claim 11, wherein the engagement member of the additional shaft section is substantially tubular and wherein the driveline passes through a centre of the engagement member of the additional shaft section.
13. The acetabular reamer handle of any one of claims 10 to 12, wherein the engagement member of the additional shaft section is provided as a sleeve on an outer surface of the additional shaft section.
14. The acetabular reamer handle of any one of claims 9 to 13, wherein the distally facing engagement surface located at the distal end of the additional shaft section is substantially ring shaped.
15. The acetabular reamer handle of any one of claims 9 to 14, wherein the distally facing engagement surface located at the distal end of the additional shaft section and each of the plurality of engagement surfaces located at the proximal end of the distal shaft section are substantially flat.
16. The acetabular reamer handle of any preceding claim, wherein: the distal end of the additional shaft section and the proximal end of the distal shaft section are pivotally attached to allow the additional shaft section and the distal shaft section to be adjustably oriented at an angle relative to each other only within a first plane, and the distal end of the distal shaft section is pivotally attached to the proximal end of the neck part to allow the distal shaft section and the neck part to be adjustably oriented at an angle relative to each other only in said first plane.
17. The acetabular reamer handle of any preceding claim, wherein the shaft includes more than two shaft sections, wherein the additional shaft section is an intermediate shaft section, and wherein the shaft includes one or more further pivotally connected shaft sections arranged proximally of the intermediate shaft section.
18. The acetabular reamer handle of claim 17, wherein the shaft includes a plurality of shaft sections comprising: said distal shaft section; said additional shaft section forming a first intermediate shaft section of the shaft; a further shaft section forming a second intermediate shaft section, wherein a distal end of the second intermediate shaft section is pivotally attached to a proximal end of the first intermediate shaft section; and a further shaft section forming a proximal shaft section of the shaft, wherein a distal end of the proximal shaft section is pivotally attached to a proximal end of the second intermediate shaft section.
19. The acetabular reamer handle of claim 1, substantially as herein described with reference to any embodiment disclosed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1802787.0A GB201802787D0 (en) | 2018-02-21 | 2018-02-21 | Acetabular reamer handle and method of reaming an acetabulum |
| PCT/EP2019/050571 WO2019161986A1 (en) | 2018-02-21 | 2019-01-10 | Acetabular reamer handle and method of reaming an acetabulum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ767417A NZ767417A (en) | 2024-05-31 |
| NZ767417B2 true NZ767417B2 (en) | 2024-09-03 |
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