US5318570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic tool
Assignee: Biomet Manufacturing LLC
•
Filing: 1991-06-11
•
Granted: 1994-06-07
•
Expires: 2011-06-11
Abstract
Abstract Disclosed is a mechanical junction for facilitating the rapid attachment and removal of ultrasonic surgical components for the transfer of ultrasonic energy across the junction from an ultrasonic transducer to an ultrasonically activated tool bit. The junction achieves a high, evenly distributed compressive force to optimize propagation of the ultrasonic energy from the transducer to a tool bit, while maintaining a relatively small outside diameter of the ultrasonic tool. Also disclosed are a plurality of ultrasonic energy activated tool tips for introducing and removing an orthopedic prosthesis.
Inventors
- 👤 Larry L. Hood
- 👤 James T. Caillouette
- 👤 Robert C. Klapper
- 👤 Gregg Hughes
- 👤 Ted Carlson
- 👤 John Berkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:34
CPC Classifications
B; B06; B06B; B06B3/00; A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8802; A61B17/8847; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4607; A61N; A61N7/00; F; F16; F16B; F16B21/00; F16B21/02; F16L; F16L37/00; F16L37/24; F16L37/244; F16L37/2445; A61B17/16; A61B17/1659; A61B17/1662; A61B17/1664; A61B17/1668; A61B17/22; A61B17/22004; A61B2017/00477; A61B17/32; A61B17/320068; A61B2017/32007; A61B2017/320072; A61B2017/320078; A61B2017/320089; A61F2/30767; A61F2/32; A61F2/34; A61F2/36; A61F2/4657; A61F2002/4619; A61F2002/4631; A61F2002/465
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
164 words
A medical apparatus, comprising: an ultrasonic transducer; and an ultrasonic energy-activated tool coupled to said ultrasonic transducer for conducting a medical procedure under ultrasonic energy, said tool comprising: an operating tip on the distal end of the tool; and a male connector component on the proximal end of said tool for coupling said tool to said ultrasonic transducer, said male connector component comprising: a shank barrel configured to engage a correspondingly shaped recess defined by a female connector component; and a stud member having a tip barrel and an interrupted threaded portion, said threads interrupted by a pair of diametrically opposed longitudinal flats, said threaded portion disposed between said shank barrel and said tip barrel, said tip barrel being configured to engage a correspondingly shaped recess defined by the female connector component, said shank barrel and said tip barrel being concentrically positioned about a longitudinal axis of said stud member to concentrically position the male connector component with the female connector component when engaged.
Claim 2
Dependent Claim
164 words
A medical apparatus, comprising: an ultrasonic transducer; and an ultrasonic energy-activated tool coupled to said ultrasonic transducer for conducting a medical procedure under ultrasonic energy, said tool comprising: an operating tip on the distal end of the tool; and a male connector component on the proximal end of said tool for coupling said tool to said ultrasonic transducer, said male connector component comprising: a shank barrel configured to engage a correspondingly shaped recess defined by a female connector component; and a stud member having a tip barrel and an interrupted threaded portion, said threads interrupted by a pair of diametrically opposed longitudinal flats, said threaded portion disposed between said shank barrel and said tip barrel, said tip barrel being configured to engage a correspondingly shaped recess defined by the female connector component, said shank barrel and said tip barrel being concentrically positioned about a longitudinal axis of said stud member to concentrically position the male connector component with the female connector component when engaged.
Claim 3
Dependent Claim
136 words
A medical apparatus, comprising: an ultrasonic transducer; and an ultrasonic energy-activated tool coupled to said ultrasonic transducer for conducting a medical procedure under ultrasonic energy, said tool comprising: an operating tip on the distal end of the tool; and a female connector component on the distal end of said tool for coupling said tool to said ultrasonic transducer, said female connector component comprising: an engagement surface to abut a corresponding surface of a male connector component coupled to said ultrasonic transducer; a recess having a threaded portion interrupted by a pair of diametrically opposed longitudinal flats; and a counterbore configured to snugly receive a portion of said male connector component to concentrically position the male connector component with said female connector component when engaged, said counterbore being disposed between said engagement surface and said threaded portion.
Claim 4
Dependent Claim
136 words
A medical apparatus, comprising: an ultrasonic transducer; and an ultrasonic energy-activated tool coupled to said ultrasonic transducer for conducting a medical procedure under ultrasonic energy, said tool comprising: an operating tip on the distal end of the tool; and a female connector component on the distal end of said tool for coupling said tool to said ultrasonic transducer, said female connector component comprising: an engagement surface to abut a corresponding surface of a male connector component coupled to said ultrasonic transducer; a recess having a threaded portion interrupted by a pair of diametrically opposed longitudinal flats; and a counterbore configured to snugly receive a portion of said male connector component to concentrically position the male connector component with said female connector component when engaged, said counterbore being disposed between said engagement surface and said threaded portion.
Claim 5
Dependent Claim
54 words
The tool of claim 1 additionally comprising a shank connecting said distal operating tip to said connector, said shank and said operating tip having a combined longitudinal length equal to a multiple of half of a wave-length of said propagating ultrasonic energy within plus or minus 20 percent of said half of a wave-length.
Claim 6
Dependent Claim
30 words
The tool of claim 3 wherein said combined length of said shank and said operating tip generally equals a multiple of half of a wave-length of said propagating ultrasonic energy.
Claim 7
Dependent Claim
21 words
The tool of claim 1, wherein said operating tip comprises an operating surface extending radially and angled in the proximal direction.
Claim 8
Dependent Claim
21 words
The tool of claim 5, wherein said operating tip comprises an arrow-shaped projection, a portion of which forms said operating surface.
Claim 9
Dependent Claim
33 words
The tool of claim 1, wherein said operating tip comprises a leverage surface proximal of a distal end to provide leverage to remove material proximal of said leverage surface from said surgical site.
Claim 10
Dependent Claim
19 words
The tool of claim 7, wherein said leverage surface is generally normal to a longitudinal axis of said tool.
Claim 11
Dependent Claim
29 words
The tool of claim 1, wherein said tool has an overall cross-sectional dimension less than a cross-sectional dimension of a central canal of a bone at said surgical site.
Claim 12
Dependent Claim
27 words
The tool of claim 9, wherein said cross-sectional dimension of said tool is said to permit the concurrent insertion into said canal of aspiration and irrigation equipment.
Claim 13
Dependent Claim
12 words
The tool of claim 1, wherein said tool comprises a titanium alloy.
Claim 14
Dependent Claim
21 words
The tool of claim 1, wherein said titanium alloy is a high grade Ti-6Al-4V alloy (aircraft grade 5), AA sonic inspected.
Claim 15
Dependent Claim
30 words
The tool of claim 2, wherein said distal operating tip comprises a pair of opposing arrow-shaped projections which ramp radially inward in the distal direction and converge in a point.
Claim 16
Independent Claim
120 words
A method of removing adhesive from a bone cavity, said adhesive of the type modified by ultrasonic energy, said method comprising the steps of: positioning an ultrasonic energy-activated tool in contact with adhesive in the bone cavity, said tool comprising a generally arrow-shaped projection having a leverage surface; energizing said tool with ultrasonic energy; embedding said projection of said tool in the adhesive; rotating said tool through an edge of less than 360° to position said leverage surface of said tool beneath unmodified adhesive; deenergizing said tool with said leverage surface positioned beneath unmodified adhesive; leveraging adhesive surrounding said tool from the cavity in the bone; and retracting said tool from said cavity to remove a portion of said adhesive.
Claim 17
Independent Claim
120 words
A method of removing adhesive from a bone cavity, said adhesive of the type modified by ultrasonic energy, said method comprising the steps of: positioning an ultrasonic energy-activated tool in contact with adhesive in the bone cavity, said tool comprising a generally arrow-shaped projection having a leverage surface; energizing said tool with ultrasonic energy; embedding said projection of said tool in the adhesive; rotating said tool through an edge of less than 360° to position said leverage surface of said tool beneath unmodified adhesive; deenergizing said tool with said leverage surface positioned beneath unmodified adhesive; leveraging adhesive surrounding said tool from the cavity in the bone; and retracting said tool from said cavity to remove a portion of said adhesive.
Claim 18
Dependent Claim
18 words
The method of claim 14 wherein said tool is embedded in the adhesive while the tool is energized.
Claim 19
Dependent Claim
21 words
The method of claim 14 wherein said tool is rotated less than 180° to positioned said leverage surface beneath unmodified adhesive.
Claim 20
Independent Claim
98 words
A method of removing material from an interior surface of a bone, said material of the type modifiable by ultrasonic energy, said method comprising the steps of: providing an ultrasonic energy-activated tool comprising a leverage surface; modifying a portion of the material with ultrasonic energy to provide a pathway for advancing said leverage surface through modified material; advancing said leverage surface of said tool through said pathway; rotating said tool to interlock said leverage surface beneath unmodified material proximal to said leverage surface; and retracting said tool from said interior surface to remove a portion of the material.
Claim 21
Independent Claim
98 words
A method of removing material from an interior surface of a bone, said material of the type modifiable by ultrasonic energy, said method comprising the steps of: providing an ultrasonic energy-activated tool comprising a leverage surface; modifying a portion of the material with ultrasonic energy to provide a pathway for advancing said leverage surface through modified material; advancing said leverage surface of said tool through said pathway; rotating said tool to interlock said leverage surface beneath unmodified material proximal to said leverage surface; and retracting said tool from said interior surface to remove a portion of the material.
Claim 22
Dependent Claim
80 words
The tool of claim 1, wherein said operating tip comprises an axially extending body having a distal tip and a generally arrow-shaped lateral projection comprising a ramped surface inclined radially outwardly in the proximal direction and terminating at an intersection with a leverage surface, said leverage surface positioned between said intersection and said body, and being sized and positioned relative to a longitudinal axis of said tool so as to rotatably interlock beneath unmodified material proximal of said leverage surface.
Claim 23
Dependent Claim
26 words
The tool of claim 18, wherein an angle between said leverage surface and said longitudinal axis of said tool is between about 75° and about 135°.
Claim 24
Dependent Claim
30 words
The tool of claim 18, wherein said operating tip comprises a second generally arrow-shaped projection positioned on a side of said body generally opposite from that of said first projection.
Claim 25
Dependent Claim
16 words
The tool of claim 20, wherein said second projection is positioned directly opposite said first projection.
Claim 26
Dependent Claim
28 words
The method of claim 14, wherein said positioning step comprises positioning said ultrasonic energy-activated tool in contact with adhesive located at a distal end of a medullary canal.
Claim 27
Dependent Claim
14 words
The method of claim 22, wherein said medullary canal is formed in a femur.
Claim 28
Dependent Claim
66 words
The method of claim 14, additionally comprising the steps of: providing an ultrasonic energy transducer; connecting said ultrasonic energy-activated tool to said ultrasonic transducer by rotating said tool with respect to said transducer through an arc of less than about 180°; and producing an axial compressive force between said ultrasonic energy-activated tool and said ultrasonic transducer which is equal to or greater than about 300 pounds.
Claim 29
Dependent Claim
12 words
The method of claim 14, wherein said adhesive comprises poly methyl methacrylate.
Claim 30
Dependent Claim
45 words
The method of claim 14, wherein said step of energizing said tool with ultrasonic energy comprises: coupling said ultrasonic energy-activated tool to an ultrasonic transducer; and energizing said transducer to oscillate said tool within the range of from about 10 kHz to about 100 kHz.
Claim 31
Dependent Claim
42 words
The method of claim 14, wherein said step of energizing said tool with ultrasonic energy comprises oscillating said tool such that a distal end of said tool has a stroke length within the range of from about 0.001 to about 0.004 inches.
Claim 32
Dependent Claim
25 words
The method of claim 14, wherein said rotating step comprises rotating said leverage surface of said tool through an arc of less than 360 degrees.
Claim 33
Dependent Claim
30 words
The method of claim 17, wherein said step of modifying a portion of the material comprises the steps of: ultrasonically vibrating said tool; and contacting the material with said tool.
Claim 34
Dependent Claim
28 words
The method of claim 17, wherein said modifying step comprises the steps of: ultrasonically vibrating said tool; and contacting the material with said tool to modify the material.
Claim 35
Dependent Claim
28 words
The method of claim 30, wherein said step of vibrating said tool comprises the steps of: coupling said tool to an ultrasonic transducer; and energizing said ultraonic transducer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |