US5662683A
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US
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Open helical organic tissue anchor and method of facilitating healing
Assignee: ORTHO HELIX Inc
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Filing: 1995-08-22
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Granted: 1997-09-02
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Expires: 2015-08-22
Abstract
Abstract The invention relates to a tissue anchor which is an open helix of biocompatible material having a slope of from 0.5 to 10 turns per centimeter, a length from 3 to 75 millimeters, a diameter of from 1.5 to 11 millimeters, and an aspect ratio of from about 3 to about 5 to 1. The anchor can have a head which is capable of securing or clamping tissue together, such as holding a suture to secure a ligament or tendon to bone. The anchor can also have a head which causes an inward, compressive loading for use in fastening bone to bone, orthopedic plates to bone, or cartilage to bone.
Inventors
- 👤 David B. Kay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B17/8685; A61B17/04; A61B17/0401; A61B17/064; A61B17/0642; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61B17/869; A61B2017/00004; A61B2017/0409; A61B2017/0414; A61B2017/044; A61B2017/0441; A61B2017/0649; A61F2/0805; A61F2002/0817; A61F2002/0823; A61F2002/0829; A61F2002/0847; A61F2002/0858; A61F2002/0864; A61F2002/0876; A61F2002/0888; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/908
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
116 words
An organic tissue anchor comprising a rigid, biocompatible, elongate member having a diameter of from about 0.4 millimeters to about 3 millimeters comprising surgical-grade titanium or stainless steel wire or a bioabsorbable material which forms an open, helical structure having a length from about 3 millimeters to about 75 millimeters, an outer diameter of a constant dimension of from about 1.5 millimeters to about 15 millimeters, a slope from about 0.5 to about 10 turns per centimeter and having at a first end an insertion tip and at a second end an attachment head which is capable of connecting organic tissue to said anchor and which comprises a crossbar having an eyelet for receiving a suture.
Claim 2
Dependent Claim
116 words
An organic tissue anchor comprising a rigid, biocompatible, elongate member having a diameter of from about 0.4 millimeters to about 3 millimeters comprising surgical-grade titanium or stainless steel wire or a bioabsorbable material which forms an open, helical structure having a length from about 3 millimeters to about 75 millimeters, an outer diameter of a constant dimension of from about 1.5 millimeters to about 15 millimeters, a slope from about 0.5 to about 10 turns per centimeter and having at a first end an insertion tip and at a second end an attachment head which is capable of connecting organic tissue to said anchor and which comprises a crossbar having an eyelet for receiving a suture.
Claim 3
Dependent Claim
19 words
An anchor according to claim 1, wherein the anchor is from about 2 to about 20 millimeters in length.
Claim 4
Dependent Claim
32 words
An anchor according to claim 2, wherein the elongate member has a diameter of from about 0.5 to about 2 millimeters and a length of from about 4 to about 18 millimeters.
Claim 5
Dependent Claim
32 words
An anchor according to claim 3, wherein the elongate member has a diameter of from about 1 to about 2 millimeters and a length of from about 8 to about 15 millimeters.
Claim 6
Dependent Claim
19 words
An anchor according to claim 3, wherein the helix achieves from about 0.5 to about 20 complete 360° revolutions.
Claim 7
Dependent Claim
17 words
An anchor according to claim 5, wherein the anchor achieves from about 1 to about 4 revolutions.
Claim 8
Dependent Claim
22 words
An anchor according to claim 2, wherein the overall outer diameter of the helix is from about 1.5 to about 11 millimeters.
Claim 9
Dependent Claim
12 words
An anchor according to claim 1, wherein the attachment head is cannulated.
Claim 10
Independent Claim
96 words
A method of securing tissue comprising: accessing a surgical site including a tissue anchoring site in bone; implanting an anchor comprising an open, rigid, biocompatible helix into said site, said helix being formed from an elongate member having a circular cross-section with a diameter of from about 0.2 to about 5 millimeters, and said helix having a length of from about 2 to about 75 millimeters, a slope from about 5 to about 10 turns per centimeter, and an outer diameter of from about 1.5 to about 11 millimeters; and attaching a tissue to said anchor.
Claim 11
Independent Claim
96 words
A method of securing tissue comprising: accessing a surgical site including a tissue anchoring site in bone; implanting an anchor comprising an open, rigid, biocompatible helix into said site, said helix being formed from an elongate member having a circular cross-section with a diameter of from about 0.2 to about 5 millimeters, and said helix having a length of from about 2 to about 75 millimeters, a slope from about 5 to about 10 turns per centimeter, and an outer diameter of from about 1.5 to about 11 millimeters; and attaching a tissue to said anchor.
Claim 12
Dependent Claim
18 words
A method according to claim 9, wherein said step of attaching comprises suturing said tissue to said anchor.
Claim 13
Dependent Claim
36 words
A method according to claim 9, including a step of making a pilot hole which is about the diameter of the elongate member in the bone prior to the insertion to the anchor in the bone.
Claim 14
Dependent Claim
19 words
A method according to claim 11, wherein said attaching step comprises suturing a ligament or tendon to said anchor.
Claim 15
Independent Claim
140 words
A method of buttressing bone comprising the steps of: accessing a surgical site including at least a first cortical bone surface aligning a plate having an aperture on said first cortical surface; and implanting at least one anchor through said plate aperture into at least said first conical surface, said anchor comprising an open helix having a length of from about 5 to about 75 millimeters, a slope of from about 0.5 to about 10 turns per centimeter, and said helix being formed from an elongate member having a circular cross-section having a diameter of from about 0.2 to about 5 millimeters, said helix having a constant outer diameter said helix further having at a first end an insertion tip and at a second end a head capable of applying a compressive force in the direction of the first end.
Claim 16
Independent Claim
140 words
A method of buttressing bone comprising the steps of: accessing a surgical site including at least a first cortical bone surface aligning a plate having an aperture on said first cortical surface; and implanting at least one anchor through said plate aperture into at least said first conical surface, said anchor comprising an open helix having a length of from about 5 to about 75 millimeters, a slope of from about 0.5 to about 10 turns per centimeter, and said helix being formed from an elongate member having a circular cross-section having a diameter of from about 0.2 to about 5 millimeters, said helix having a constant outer diameter said helix further having at a first end an insertion tip and at a second end a head capable of applying a compressive force in the direction of the first end.
Claim 17
Dependent Claim
133 words
A bone anchor comprising a rigid, biocompatible, elongate member comprising a wire having a regular, solid cross-section with a diameter of from about 1.0 millimeter to about 2 millimeters which forms an open, helical structure having a length from about 3 millimeters to about 75 millimeters, an outer diameter of a constant dimension of from about 3 millimeters to about 9 millimeters, a slope from about 0.5 to about 4 turns per centimeter, and an aspect ratio of about 3 to about 5, said anchor having at a first end a bone insertion tip, and at a second end an attachment head having means for connecting organic tissue to said anchor, said attachment head being one piece with said helical structure, and said head having substantially the same outer diameter as said helix.
Claim 18
Dependent Claim
133 words
A bone anchor comprising a rigid, biocompatible, elongate member comprising a wire having a regular, solid cross-section with a diameter of from about 1.0 millimeter to about 2 millimeters which forms an open, helical structure having a length from about 3 millimeters to about 75 millimeters, an outer diameter of a constant dimension of from about 3 millimeters to about 9 millimeters, a slope from about 0.5 to about 4 turns per centimeter, and an aspect ratio of about 3 to about 5, said anchor having at a first end a bone insertion tip, and at a second end an attachment head having means for connecting organic tissue to said anchor, said attachment head being one piece with said helical structure, and said head having substantially the same outer diameter as said helix.
Claim 19
Dependent Claim
20 words
A bone anchor as set forth in claim 14, wherein said attachment head is welded directly to said helical structure.
Claim 20
Independent Claim
158 words
A method of buttressing bone comprising the steps of: accessing a surgical site including at least a first cortical bone surface; implanting at least one anchor into at least said first cortical surface, said anchor comprising an open helix having a length of from about 5 to about 75 millimeters, a slope of from about 0.5 to 10 turns per centimeter, and said helix being formed from an elongate member having a circular cross-section having a diameter of from about 0.2 to about 5 millimeters, said helix having a constant outer diameter, said helix further having at a first end an insertion tip and at a second end a head capable of applying a compressive force in the direction of the first end and wherein said head is cannulated, and further including the steps of using a guide wire to achieve initial bone alignment and subsequently implanting said anchor about said guide wire by means of said cannulation.
Claim 21
Independent Claim
158 words
A method of buttressing bone comprising the steps of: accessing a surgical site including at least a first cortical bone surface; implanting at least one anchor into at least said first cortical surface, said anchor comprising an open helix having a length of from about 5 to about 75 millimeters, a slope of from about 0.5 to 10 turns per centimeter, and said helix being formed from an elongate member having a circular cross-section having a diameter of from about 0.2 to about 5 millimeters, said helix having a constant outer diameter, said helix further having at a first end an insertion tip and at a second end a head capable of applying a compressive force in the direction of the first end and wherein said head is cannulated, and further including the steps of using a guide wire to achieve initial bone alignment and subsequently implanting said anchor about said guide wire by means of said cannulation.
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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) | 2000-09-01 | 2001-03-03 | 2001-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-01 | 2005-03-03 | 2005-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-01 | 2009-03-03 | 2009-09-02 | $7700.00 | Window Closed / Lapsed |