Orthopaedic bone saw and method of use thereof

• US 8,343,159 B2
• Filed: 09/29/2008
• Issued: 01/01/2013
• Est. Priority Date: 09/30/2007
• Status: Active Grant

• Current Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Inventors: Bennett, Travis
• Primary Examiner(s): Truong, Kevin T
• Assistant Examiner(s): Waggle, Jr., Larry E
• Application Number:
  US12/240,988
• Publication Number:
  US 20090088758A1
• Time in Patent Office: 1,555 Days
• Field of Search: 606 79- 82, 606/86.R, 606 87- 89, 606 96- 98, 606/84
• US Class Current: 606/82
• CPC Class Codes: A61B 17/155 Cutting femur
• CPC Class Codes: A61B 17/157 Cutting tibia
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/568 produced with shape and dimensions specific for an individual patient
• CPC Class Codes: A61B 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: Y10T 409/30084 with regulation of operation by templet, card, or other replaceable information supply

Abstract

A number of orthopaedic surgical instruments are also disclosed. A method, apparatus, and system for fabricating such instruments are also disclosed.

Claims

1. An orthopaedic bone saw for cutting the bone of a patient, comprising:

a bone saw blade, the bone saw blade defining a longitudinal axis,

a chuck configured to receive the bone saw blade,

a guide configured to receive one or more surgical guide pins therein to align the bone saw blade in a predetermined position relative to the bone of the patient,

a housing secured to the chuck,

a clamp coupled to the housing, the clamp having a passageway extending therethrough,

a rod extending through the passageway of the clamp and extending parallel to the longitudinal axis of the bone saw blade, the rod having a distal end positioned toward the bone saw blade,

a block secured to the distal end of the rod, and

a swivel secured to the guide and the block, wherein the swivel permits the block and the guide to pivot relative to one another.

2. The bone saw of claim 1, wherein the guide comprises a body having one or more openings defined therein to receive the one or more surgical guide pins.

3. The bone saw of claim 1, wherein:

the guide comprises an elongated body having a slot defined therein, and

the slot is configured to receive the one or more surgical guide pins therein.

4. The bone saw of claim 1, further comprising a handle secured to the housing.

5. An orthopaedic bone saw tool for cutting the bone of a patient, comprising:

a bone saw having (i) a housing, (ii) a handle secured to the housing, and (iii) a chuck secured to the housing,

an elongated guide configured to receive one or more surgical guide pins,

a bone saw blade secured to the chuck,

a clamp coupled to the housing, the clamp having a passageway extending therethrough,

a rod extending through the passageway of the clamp and extending parallel to a longitudinal axis of the bone saw blade, the rod having a distal end positioned toward the bone saw blade,

a block coupled the distal end of the rod, and

a swivel positioned between the elongated guide and the block, wherein the swivel permits the block and the guide to pivot relative to one another.

6. The bone saw tool of claim 5, wherein the elongated guide comprises a body having one or more openings defined therein to receive the one or more surgical guide pins.

7. The bone saw tool of claim 5, wherein:

the elongated guide comprises an elongated body having a slot defined therein, and

the slot is configured to receive the one or more surgical guide pins therein.

8. An orthopaedic bone saw comprising:

a bone saw housing,

a bone saw blade chuck located at an end of the bone saw housing,

an elongated bone saw blade received in the bone saw blade chuck;

the elongated bone saw blade defining a longitudinal axis,

a bracket extending downwardly from a proximal end secured to the bone saw housing to a distal end, and

an elongated guide secured to the distal end of the bracket and positioned below the bone saw blade chuck, the elongated guide having (i) an elongated body defining a longitudinal axis that is substantially orthogonal to the longitudinal axis of the elongated bone saw blade and (ii) an elongated opening defined in the elongated body that extends along the longitudinal axis of the elongated body, the elongated opening being sized to receive at least two guide bone pins to align the orthopaedic bone saw with a bone of a patient,

wherein the bracket includes;

a clamp coupled to the bone saw housing, the clamp including a passageway therethrough,

a rod extending through the passageway of the clamp and extending parallel to the longitudinal axis of the bone saw blade, the rod having a distal end positioned toward the bone saw blade,

a base block secured to the distal end of the rod, and

a post extending downwardly from the clamp,

wherein the elongated guide is coupled to a distal end of the post.

9. The orthopaedic bone saw of claim 8, wherein the post defines a longitudinal axis and the elongated guide is configured to swivel about the longitudinal axis of the post.