GB2342865A - Artificial ligament or biological tissue fixation devices - Google Patents
Artificial ligament or biological tissue fixation devices Download PDFInfo
- Publication number
- GB2342865A GB2342865A GB9924676A GB9924676A GB2342865A GB 2342865 A GB2342865 A GB 2342865A GB 9924676 A GB9924676 A GB 9924676A GB 9924676 A GB9924676 A GB 9924676A GB 2342865 A GB2342865 A GB 2342865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lengths
- flat elongate
- elongate array
- length
- tows
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rehabilitation Therapy (AREA)
- Rheumatology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
An artificial ligament device (10) comprising a plurality of tows (11) of biocompatible material secured side-by-side in a flat elongate array, looped back at both ends to form an eye (13) at both ends, with lashing (14) around the bases of the eyes, characterized in that the lengths (16, 17) of the flat elongate array are secured side-by-side at intervals (18), thus forming "button-holes" (19). In use for ACL reconstruction, the end portions (21) of an autologous graft (22) are fed through "button-holes" (19) towards each end of the device (10) and then sutured (at 23) to the device, and a mid-section (20) of the device is cut out to leave purely autologous tissue to serve as the replacement ACL. However, use of the device (10) alone as an artificial ligament per se is not precluded.
Description
2342865 ARTIFICIAL LIGANENT OR BIOLOGICAL TISSUE FIXATION DEVICES This
invention relates to artificial ligament or biological tissue fixation devices, e.g., ligament augmentation devices such as are used for reinforcing or supplementing damaged ligaments while healing takes place or for use in conjunction with autologous grafts for reconstructing torn ligaments, such as the anterior cruciate ligament (ACL) or artificial ligaments per se for delivery devices for autologous grafts.
Such devices are described in W094/22395 as being manufactured by securing a plurality of tows of biocompatible material (e. polyester) side-by-side in a flat elongate array, as by light braiding, looping the tows back at one end (or both ends) of the device to form an eye (or an eye at both ends), and applying lashing around the base of the eye (or eyes), which is available for attachment of a pulling cord or wire and/or for secure fixing of that end of the device by fitting the eye round an anchor member secured to a bone.
W094122-395 also describes the lengths of flat elongate array being secured side-by-side by stitching, and also applying whipping around grouped tows around the eye.
Such a device having an eye at one end can have its stitched-together side-by-side lengths of flat elongate array wrapped round one end of an autologous graft, with the mating edges stitched together to form a sleeve over that end of the graft and stitched thereto, whereby the device can serve as a delivery device for the graft. The other end of the autologous graft may be similarly treated.
In recent years, hamstring grafts have been advocated for ACL reconstruction due mainly to the reduced morbidity associated with the harvesting procedure. In laboratory testing, a quadrupled hamstring graft was shown to have equal or greater strength than a bone-patellar tendon-bone graft. A problem, however, is that all previous fixation techniques have been less effective. A major disadvantage is the excessive distance between the fixation points on the tibia 2 and the femur. This distance leads to low initial graft stiffhess and allows micromotion of the graft in the bone tunnels in the femur and tibia, called the "bungee" effect, which could potentially cause adverse healing and/or failure of the graft.
An object of the present invention is to alleviate this problem.
According to the present invention, therefore, an artificial ligament device comprises a plurality of tows of biocompatible material secured side-by-side in a flat elongate array, looped back at both ends to form an eye at both ends, with lashing around the bases of the eyes, characterized in that the lengths of flat elongate array are secured side- by-side at intervals, thus forming "button-holes".
In use for ACL reconstruction, the end portions of an autologous graft are fed through "button-holes" towards each end of the device and then sutured to the device, and a mid-section of the device is cut out to leave purely autologous tissue to serve as the replacement ACL.
However, use of the device alone as an artificial ligament per se is not precluded.
The device is preferably made of polyester as it attracts vigorous tissue ingrowth, which provides further strengthening of the fixation with time, compared with largely inert mechanical fixation devices currently in clinical use, and allows unobstructed X-ray and N1IU images.
The device is preferably available in different lengths to suit the requirements of individual patients.
The free ends of the flat elongate array preferably meet at the middle of a mid-section of the device and are stitched to each other, and the mid-section of the device may be defined by a length in which the lengths of flat elongate array are not secured to each other over a length appreciably longer than the length of a "button-hole".
The securing together of the lengths of flat elongate array may be effected by stitching extending all the way across both lengths.
3 The tows may be grouped around each eye and whipping may be applied around the grouped tows; however, it may suffice to simply fold the flat elongate array over to form the eyes, and then twist one of the lengths through 180' adjacent to the eyes to bring that length into the same plane as and alongside the other length.
An embodiment of the invention and its manner of use will now be described, by of example only, with reference to the accompanying drawings, in which:
Figure I is an elevation of the device; Figure 2 is a view of the device as seen from the left hand side of Figure 1; Figure 3 corresponds generally to Figure 2 but shows an autologous graft fed through "button-holes" towards each end of the device; and Figure 4 corresponds to Figure 3 but also shows the graft after it has ben sutured to the device and a rriid-section of the device has been cut out.
In Figures I and 2 an artificial ligament device 10 comprises a plurality of tows I I of biocompatible material, such as polyester, secured side-by-side in a flat elongate array, as by braiding 12, the array being looped back at both ends to form an eye 13 at both ends, with lashing 14 around the bases of the eyes, and with the free ends 15 of the flat elongate array meeting at the middle of the device and being stitched to each other. The flat elongate array is simply folded over to form the eyes 13 and then one of the lengths 16, 17 twisted through 180o to bring that length into the same plane as and alongside the other length.
In accordance -%krith the present invention, the lengths 16, 17 (the latter of which includes the stitched-together ends 15) are secured side-by-side, as by stitching 18 extending all the way across both lengths, at intervals, thus forming "button-holes" 19 towards each end, a mid-section of the device being defined by a length in which the lengths 16, 17 of flat elongate array are not secured to each other over a length appreciably longer than the length of a "button-hole".
4 In Figure 4 end portions 21 of an autologous graft 22 are fed through "button-holee' 19 towards respective ends of the device 10 and then sutured to the device as indicated at 23 in Figure 4, after which the ri-id-section 20 of the device is cut out to leave purely autologous tissue to serve as, for example, a replacement ACL; however, use of the device 10 above as an artificial ligament per se is not precluded.
The eyes 1 31 are available for fitting round anchor members at fixation points on, for example, the tibia and the femur, and one of the eyes may be provided with a pulling cord or tape or a wire (not shown) for threading one end of the device and graft through a bone tunnel
Claims (8)
1. An artificial ligament device (10) comprising a plurality of tows (11) of biocompatible material secured side-by-side in a flat elongate array, looped back at both ends to form an eye (13) at both ends, with lashing (14) around the bases of the eyes, characterized in that the lengths (16, 17) of the flat elongate array are secured side-by-side at intervals (18), thus forming "button Wee' (19).
2. A device (10) as in Claim 1, characterized in that it is formed of polyester.
3. A device as in Claim I or Claim 2, characterized in that the free ends (15) of the flat elongate array meet at the middle of a tnid-section (20) of the device (10) and are stitched to each other.
4. A device as in Claim 3, characterized in that the mid-section (20) of the device (10) is defined by a length in which the lengths (16, 17) of flat elongate array are not secured to each other over a length appreciably longer than the length of a "button-hole" (19).
5. A device as in any one of Claims I to 4, characterized in that the securing together of the lengths (16, 17) of flat elongate array is effected by stitching (18) extending all the way across the lengths.
6. A device as in any one of Claims I to 5, characterized in that the tows (11) are secured side-by-side by braiding (12).
7. A device as in any one of Claims I to 6, characterized in that the tows (11) are grouped around each eye (13) and whipping, is applied around the grouped tows.
8. A device as in any one of Claims I to 6, characterized in that the flat elongate array is folded over to form the eyes (13), and then one of the lengths (16, 17) is twisted through 180o adjacent to the eyes to bring that length into the same plane as and alongside the other length.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9822775.4A GB9822775D0 (en) | 1998-10-20 | 1998-10-20 | Artificial ligament or biological tissue fixation devices |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9924676D0 GB9924676D0 (en) | 1999-12-22 |
GB2342865A true GB2342865A (en) | 2000-04-26 |
GB2342865B GB2342865B (en) | 2002-10-30 |
Family
ID=10840824
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9822775.4A Ceased GB9822775D0 (en) | 1998-10-20 | 1998-10-20 | Artificial ligament or biological tissue fixation devices |
GB9924676A Expired - Fee Related GB2342865B (en) | 1998-10-20 | 1999-10-20 | Artificial ligament or biological tissue fixation device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB9822775.4A Ceased GB9822775D0 (en) | 1998-10-20 | 1998-10-20 | Artificial ligament or biological tissue fixation devices |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU6223599A (en) |
GB (2) | GB9822775D0 (en) |
WO (1) | WO2000023005A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012135003A1 (en) * | 2011-03-31 | 2012-10-04 | Biomet Manufacturing Corporation | Dual tendon bundle |
WO2013017835A1 (en) * | 2011-08-02 | 2013-02-07 | Xiros Limited | Connective tissue repair |
US9730784B2 (en) | 2011-08-02 | 2017-08-15 | Xiros Limited | Connective tissue repair pad |
US10155068B2 (en) | 2013-02-01 | 2018-12-18 | Xiros Limited | Connective tissue repair technology |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2151487A (en) * | 1983-12-15 | 1985-07-24 | Showell A W | Replacements for ligaments and tendons |
US5192322A (en) * | 1990-01-08 | 1993-03-09 | Sulzer Brothers Limited | Implant for a prosthetic ligament and/or tendon replacement |
US5197983A (en) * | 1988-04-19 | 1993-03-30 | W. L. Gore & Associates, Inc. | Ligament and tendon prosthesis |
GB2276823A (en) * | 1993-03-31 | 1994-10-12 | Surgicarft Ltd | Artificial ligament device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3805300A (en) * | 1972-07-28 | 1974-04-23 | Cutter Lab | Tendon prosthesis |
GB8414344D0 (en) * | 1984-06-05 | 1984-07-11 | Showell A W Sugicraft Ltd | Surgical element |
GB8418018D0 (en) * | 1984-07-16 | 1984-08-22 | Johnson & Johnson | Connective tissue prosthesis |
ZA875425B (en) * | 1986-07-23 | 1988-04-27 | Gore & Ass | Mechanical ligament |
FR2729559B1 (en) * | 1995-01-25 | 1997-03-21 | Cousin Freres Sa | TEXTILE LIGAMENTARY REINFORCEMENT, PARTICULARLY FOR THE KNEE JOINT |
FR2768612B1 (en) * | 1997-09-24 | 1999-10-29 | Jmed Sarl | ARTIFICIAL LIGAMENT FOR INTERVERTEBRAL ARTHROPLASTY AND APPARATUS FOR IMPLEMENTATION |
-
1998
- 1998-10-20 GB GBGB9822775.4A patent/GB9822775D0/en not_active Ceased
-
1999
- 1999-10-20 AU AU62235/99A patent/AU6223599A/en not_active Abandoned
- 1999-10-20 GB GB9924676A patent/GB2342865B/en not_active Expired - Fee Related
- 1999-10-20 WO PCT/GB1999/003475 patent/WO2000023005A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2151487A (en) * | 1983-12-15 | 1985-07-24 | Showell A W | Replacements for ligaments and tendons |
US5197983A (en) * | 1988-04-19 | 1993-03-30 | W. L. Gore & Associates, Inc. | Ligament and tendon prosthesis |
US5192322A (en) * | 1990-01-08 | 1993-03-09 | Sulzer Brothers Limited | Implant for a prosthetic ligament and/or tendon replacement |
GB2276823A (en) * | 1993-03-31 | 1994-10-12 | Surgicarft Ltd | Artificial ligament device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012135003A1 (en) * | 2011-03-31 | 2012-10-04 | Biomet Manufacturing Corporation | Dual tendon bundle |
US8574296B2 (en) | 2011-03-31 | 2013-11-05 | Biomet Manufacturing Corporation | Dual tendon bundle |
WO2013017835A1 (en) * | 2011-08-02 | 2013-02-07 | Xiros Limited | Connective tissue repair |
US9730784B2 (en) | 2011-08-02 | 2017-08-15 | Xiros Limited | Connective tissue repair pad |
US10155068B2 (en) | 2013-02-01 | 2018-12-18 | Xiros Limited | Connective tissue repair technology |
Also Published As
Publication number | Publication date |
---|---|
WO2000023005A1 (en) | 2000-04-27 |
AU6223599A (en) | 2000-05-08 |
GB9822775D0 (en) | 1998-12-16 |
GB2342865B (en) | 2002-10-30 |
GB9924676D0 (en) | 1999-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20090611 AND 20090617 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20171020 |