Source: https://patents.google.com/patent/WO2002096309A1/en
Timestamp: 2019-07-24 06:42:47
Document Index: 426220644

Matched Legal Cases: ['art 1', 'art 2', 'art 1', 'art 1', 'art 2', 'art 1', 'art 2', 'art 1', 'art 2', 'art 1', 'art 2', 'art 1', 'art 1', 'art 1', 'art 2', 'art 2', 'art 2', 'art 2', 'art 1', 'art. 1']

WO2002096309A1 - Bone plate for the fixation of fractures of the proximal humerus - Google Patents
WO2002096309A1
WO2002096309A1 PCT/CH2001/000327 CH0100327W WO02096309A1 WO 2002096309 A1 WO2002096309 A1 WO 2002096309A1 CH 0100327 W CH0100327 W CH 0100327W WO 02096309 A1 WO02096309 A1 WO 02096309A1
PCT/CH2001/000327
2001-05-28 Application filed by Synthes Ag Chur, Synthes (U.S.A.) filed Critical Synthes Ag Chur
2002-12-05 Publication of WO2002096309A1 publication Critical patent/WO2002096309A1/en
2007-02-24 First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4358209&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2002096309(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
The invention relates to a bone plate, which is used for the fixation of fractures of the proximal humerus. Said plate comprises a peduncular part (1), whose length is greater than its width x and a spoon-shaped part (2), whose width y is greater than the width x of the peduncular part (1). The peduncular part (1) and the spoon-shaped part (2) have a common longitudinal central axis (3) and are interconnected by a transition zone (26). At least 2 screw holes (9, 10, 16, 17; 24) are configured in the peduncular part (1) and the spoon-shaped part (2) respectively. At least one of the screw holes (24) in the peduncular part (1) has an at least partial internal thread (28) or partially spiralling key beds. At least one of the screw holes (9, 10, 16, 17) in the spoon-shaped part (2) has an internal thread (27) or partially spiralling key beds. The lead of the internal thread (27; 28) or the partially spiralling key beds ranges between 0.5 mm and 1.1 mm.
Bone plate for fixation of proximal humeral fractures
The invention relates to a bone plate for the fixation of proximal humeral fractures according to the preamble of patent claim 1.
Such bone plates are used for fixation of all types of fractures on the proximal humerus, but especially for all three- and four-part fractures and dislocated fractures of the proximal humerus.
A common cause of fractures of the proximal humerus at a young age is high-energy trauma. This type of fracture even increases with increasing age, since the bone structure deteriorates so much in the area of the proximal humerus that intact bone structure is only present in the marginal zone of the bone. In a fall on the outstretched arm in advanced age, the bone then breaks preferably at this point.
From US-A 6,096,040 ESSER a generic bone plate is already known.
The disadvantages of this arrangement are that the plate in the spoon-like part has a hole position with which it is not possible to take the well-known good bone structure in the peripheral region of the proximal humerus. In addition, the implant described at ESSER is a plate without angular stable options in the plate holes. When using the plate, this is pressed by means of bone screws to the bone. This procedure is called compression osteosynthesis. The forces are transferred via the friction between the implant and the bone, while the bone has to carry a large part of the load. Due to the large axial pressure to which the bone screws are exposed for a relatively stable securing of the plate to the bone, under dynamic conditions the bone screws are torn out of the bone and, consequently, the stability of the plate bone construct is lost. The above discussion of the prior art is merely illustrative of the scope of the invention and does not imply that the cited prior art was actually public published or publicly known at the time of this application or priority.
The invention aims to remedy this situation. The invention is based on the problem of providing a bone plate for the fixation of proximal humeral fractures, with which a stable-angle osteosynthesis can be achieved. Significant advantages of the invention are the angular stability of the screw holes in combination with threaded head screws, ease of handling, more optimal anatomical adaptation to the bone and no obstruction of the relevant anatomical structures of the proximal humerus. The use of screws with a threaded head creates an angle-stable plate bone structure, which is able to maintain its grip even under dynamic conditions.
The invention solves the problem with a bone plate having the features of claim 1.
The low pitch allows for a very short distance, usually in the range of 1 to 2 mm, a firm anchorage of the screw in the plate. Thereby, the thickness of the plate can be dimensioned very thin, without any impairment of the stability of the plate-screw-construct would result.
A preferred development is that the pitch of the internal thread or the partially circumferential keyways is in the range of 0.7 to 0.9 mm, which further optimizes the effect described above.
In a further preferred embodiment, the transition region widened from the width x of the stile-shaped part to the width y of the spoon-like part, preferably in an exponential manner.
This can be an optimal adaptation to the unbroken proximal humerus of man achieve. The plate is thus clean on the bone and none of the relevant anatomical structures are obstructed. The thickness of the plate is conveniently in the range of 1.7 to 2.3 mm, preferably between 1.9 and 2.1 mm. The advantage of the comparatively small thickness compared to conventional bone plates is mainly that thinner plates hinder none of the relevant structures and do not apex at the acromion of the shoulder when lifting the arm.
Preferably, the stile-shaped part of the plate, seen in the direction of the central axis, formed curved at least in a portion.
In a further preferred embodiment, the stile-shaped part of the plate, in
Direction of the central axis (3) seen, at least in a partial area in the form of a
Elliptical arc (21) curved. The length of the big axis (22) of the
Ellipse arc (21) associated ellipse is preferably in the range between 150 and
170 mm, typically in the range of 157 and 163 mm. The length of the minor axis of the ellipse belonging to the elliptical arc is preferably in the range between 60 and 80 mm, typically in the range between 67 and 73 mm.
The free end of the stile-shaped part and the spoon-like part (2) are preferably substantially in mutually parallel planes.
All these preferred measures have the advantage that an improved adaptation to the unbroken proximal humerus of humans is possible, the plate rests cleanly on the bone and none of the relevant anatomical structures are hindered.
In a further preferred embodiment, the bone plate has at least in a partial region a curvature running transversely to the central axis, preferably with a radius of curvature in the range of 18 to 22 mm.
In a further embodiment, the bone plate over its entire length on a transverse to the central axis curvature. The advantage that can be achieved is that no irritation of the existing soft tissue occurs. Lifting the arm prevents the bone plate from attaching to the acromion of the shoulder.
In a further preferred embodiment, the free, terminal portion of the spoon-like part has two holes arranged symmetrically to the central axis with parallel bore axes, wherein the bore axes form an angle of 92 ° to 98 °, preferably 94 ° to 96 ° with the surface formed by the spoon-like part. In order to achieve a stable-angle reduction, implants according to the prior art require blades, which are replaced by the screws to be introduced into the angle-stable bores. The surgical technique of blades but requires a greater amount of time and is more complex to use than those with locking screws as in the invention. Due to the contact angle of approx. 95 °, the contact area with the solid bone is increased, since solid bone material is present only in the edge zones of the relatively hollow humeral head.
In a further preferred embodiment, the portion of the spoon-like part adjoining the transition region has two bores arranged asymmetrically with respect to the central axis, and the bore axes of the two bores lie in mutually parallel planes, which are preferably orthogonal to the central axis. The projection of a bore axis in the parallel plane containing the other bore axis, with the bore axis at an angle of 40 ° - 60 °, preferably from 46 ° - 54 ° with each other.
The advantage of this device is that the screws to be inserted into these restrictive bores allow the small tubercle to be attracted, which often breaks off in fractures of the proximal humerus.
A further preferred embodiment is that at least one of the holes arranged symmetrically and / or asymmetrically with respect to the central axis has an internal thread or partially circumferential keyways. In this case, advantageously none of the bore axes of the holes arranged symmetrically and / or asymmetrically with respect to the central axis should intersect. This provides the advantage that the screws to be inserted into the holes do not interfere with each other.
In a further embodiment, the axes of the attached in the stile-shaped part holes are perpendicular thereto.
The internal threads are preferably multi-threaded, typically double-flighted. The bone plate according to the invention can be used for both the left and the right humerus and adapts optimally to the shape of the healthy proximal humerus.
The invention and development of the invention will be explained in more detail below with reference to the partially schematic representation of an embodiment.
Fig. 1 is a plan view of the inventive bone plate;
Fig. 2 is a section along the line II - II in Figure 1;
3 shows a perspective view of the bone plate according to the invention; and
Fig. 4 is a side view of the inventive bone plate.
The bone plate shown in FIGS. 1 to 4, which serves to fix proximal humeral fractures, consists of a stile-shaped part 1 whose length is greater than its width x and a spoon-like part 2, whose width y is greater than the width x of the stile-shaped Part 1 is. The stile-shaped part 1 and the spoon-like part 2 have a common longitudinal central axis 3 and are interconnected by a transitional region 26 which widens exponentially from the width x of the stile-shaped part 1 to the width y of the spoon-like part 2. In the stile-shaped part 1 as well as in the spoon-like part 2, a larger number of screw holes (9,10,16,17; 24) are mounted. All screw holes 24 mounted in the stile-shaped part 1 of the bone plate have an internal thread 28 (this could also be replaced by partially circumferential splines.) Four screw holes (9, 10, 16, 17) in the spoon-like part 2 of the bone plate likewise have an internal thread 27 on (here, too, the internal thread could be replaced by partially circumferential keyways.
The pitch of these internal threads 27, 28 (or the partially circumferential keyways) is 0.8 mm. The thickness of the bone plate is 2 mm.
4 as seen from Fig. 4, the stile-shaped part 1, seen in the direction of the central axis 3, formed curved in a partial area and in the form of an elliptical arc 21. The length of the major axis 22 of the elliptical arc 21st The corresponding ellipse is 160 and the length of the minor axis 23 of the elliptical arc 2) belonging to the ellipse is 70 mm. Due to the curvature of the stile-shaped part 1, the free end 5 of the stile-shaped part 1 and the spoon-like part 2 is substantially in mutually parallel planes.
As can be seen from FIG. 2, over its entire length the bone plate has a curvature 6 running transversely to the central axis 3 with a radius of curvature of 20 mm.
As can be seen from Figs. 1 and 2, the free, final batch 8 of the spoon-like part 2 has two arranged symmetrically to the central axis 3 holes 9,10 with parallel bore axes, the bore axes 11, 12 an angle 13 of 95 ° with the by form the spoon-shaped part 2 formed surface 14.
The adjacent to the transition region 26 lot 15 of the spoon-like part 2 also has two asymmetrically arranged to the central axis 3 holes 16, 17. The bore axes 18, 19 of the two bores 16, 17 lie in mutually parallel planes, which are orthogonal to the central axis 3. The projection of a bore axis 18 in the parallel plane, which contains the other bore axis 19, encloses an angle 20 of 50 ° with the bore axis 19.
The symmetrical and asymmetrical to the central axis 3 arranged pairs of holes 9,10,16,17 have an internal thread 27, which could also be replaced by partially circumferential keyways. None of the bore axes 11, 12; 18, 19 of symmetrically and asymmetrically to the central axis 3 arranged pairs of holes 9, 10; 16, 17 intersect. The internal threads 27, 28 are formed double-threaded.
The axes of the attached in the stile-shaped part 1 holes 24 are perpendicular to the stile-shaped part. 1
1. Bone plate for fixation of proximal humeral fractures with a stile-shaped part (1) whose length is greater than its width x and a spoon-like part (2) whose width y is greater than the width x of the stile-shaped part (1), wherein the Stile-shaped part (1) and the spoon-like part (2) have a common longitudinal central axis (3) and are interconnected by a transition region (26), and wherein in the stile-shaped part (1) as well as in the spoon-like part (2) at least 2 Screw holes (9,10,16,17; 24) are mounted, characterized in that
A) at least one of the screw holes (24) in the stile-shaped part (1) has an at least partial internal thread (28) or partially circumferential splines;
B) at least one of the screw holes (9,10,16,17) in the spoon-like part (2) has an internal thread (27) or partially circumferential keyways; and
C) the pitch of the internal threads (27; 28) or the partially circumferential keyways is in the range of 0.5 mm to 1, 1 mm.
2. Bone plate according to claim 1, characterized in that the pitch of the internal thread (27; 28) or the partially circumferential keyways is in the range of 0.7 to 0.9 mm.
3. Bone plate according to claim 1 or 2, characterized in that widens the width of the transition region (26) of the width x of the stile-shaped part (1) to the width y of the spoon-like part (2), preferably in an exponential manner . .
4. Bone plate according to one of claims 1 to 3, characterized in that its thickness (7) in the range of 1, 7 to 2.3 mm, preferably between 1, 9 to 2.1 mm.
5. Bone plate according to one of claims 1 to 4, characterized in that the stile-shaped part (1), viewed in the direction of the central axis (3), is formed curved at least in a partial region.
6. Bone plate according to one of claims 1 to 5, characterized in that the stile-shaped part (1), viewed in the direction of the central axis (3), at least in a partial region in the form of an elliptical arc (21) is curved.
7. Bone plate according to claim 6, characterized in that the length of the major axis (22) of the elliptical arc (21) associated ellipse in the range between 150 and 170 mm, preferably 157 and 163 mm.
8. Bone plate according to claim 6 or 7, characterized in that the length of the small axis (23) of the elliptical arc (21) associated ellipse in the range between 60 and 80 mm, preferably between 67 and 73 mm.
9. Bone plate according to one of claims 1 to 8, characterized in that the free end (5) of the stile-shaped part and the spoon-like part (2) lie substantially in mutually parallel planes.
10. Bone plate according to one of claims 1 to 9, characterized in that it extends at least in a partial region transverse to the central axis (3) extending curvature (6) preferably with a radius of curvature in the range of 18 to 22 mm.
11. Bone plate according to claim 10, characterized in that it has over its entire length a transverse to the central axis (3) extending curvature (6).
12. Bone plate according to one of claims 1 to 11, characterized in that the free, terminal portion (8) of the spoon-like part (2) has two symmetrically to the central axis (3) arranged bores (9,10) with parallel bore axes, wherein the Bore axes (11, 12) form an angle (13) of 92 ° - 98 °, preferably 94 ° - 96 ° with the formed by the spoon-like part (2) surface (14).
13. Bone plate according to one of claims 1 to 12, characterized in that the transition region (26) adjacent portion (15) of the spoon-like part (2) has two asymmetrically to the central axis (3) arranged bores (16, 17).
14. Bone plate according to claim 13, characterized in that the bore axes (18,19) of the two bores (16,17) lie in mutually parallel planes, which are preferably orthogonal to the central axis (3).
15. Bone plate according to claim 14, characterized in that the projection of a bore axis (18) in the parallel plane containing the other bore axis (19) with the bore axis (19) an angle (20) of 40 ° -60 ° , preferably from 46 ° -54 ° with each other.
16. Bone plate according to one of claims 12 to 15, characterized in that at least one of the symmetrical and / or asymmetrical to the central axis (3) arranged bores (9,10,16,17) have an internal thread (27) or partially circumferential keyways.
17. Bone plate according to one of claims 12 to 16, characterized in that none of the bore axes (11, 12, 18, 19) of the symmetrical and / or asymmetrical to the central axis (3) arranged bores (9, 10, 16, 17) to cut.
18. Bone plate according to one of claims 1 to 17, characterized in that the axes of the stile-shaped part (1) mounted holes (24) are perpendicular thereto.
19. Bone plate according to one of claims 1 to 18, characterized in that the internal threads (27, 28) are designed to be more tractable, preferably double-flighted.
PCT/CH2001/000327 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus WO2002096309A1 (en)
EP20010931311 EP1389963B1 (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus
CN 01823313 CN100484490C (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus
BR0117031A BR0117031B1 (en) 2001-05-28 2001-05-28 bone plate for fixation of proximal humerus fractures.
AT01931311T AT329540T (en) 2001-05-28 2001-05-28 Bone plate for fixation of proximal humerus fractures
CA 2448522 CA2448522C (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus
CZ20033212A CZ20033212A3 (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus
DE20122742U DE20122742U1 (en) 2001-05-28 2001-05-28 Bone plate for fixing proximal humerus fracture, has screw holes with partial internal threads or partial rotating taper grooves, where pitch of internal threads or taper grooves lies within range of specific millimeter
SI200130586T SI1389963T1 (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus
DE2001510189 DE50110189D1 (en) 2001-05-28 2001-05-28 Bone plate for fixation of proximal humerus fractures
KR20037015663A KR100787209B1 (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus
MXPA03010812A MXPA03010812A (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus.
PT01931311T PT1389963E (en) 2001-05-28 2001-05-28 A bone plate for fixation of fractures of the proximal humerus
JP2002592827A JP5049454B2 (en) 2001-05-28 2001-05-28 Bone plate for fixing the fracture site of the humerus near the base
ES01931311T ES2263617T3 (en) 2001-05-28 2001-05-28 Osteosynthesis plate for fixation of proximal fractures of the humerus.
AU2001258138A AU2001258138B2 (en) 2001-05-28 2001-05-28 Bone plate for the fixation of fractures of the proximal humerus
DK01931311T DK1389963T3 (en) 2001-05-28 2001-05-28 The bone plate for fixation of proximal humerusfrakturer
ARP020101412 AR033700A1 (en) 2001-05-28 2002-04-18 Osteosynthesis plate fixation for proximal fractures of the humerus
US10/721,895 US7655029B2 (en) 2001-05-28 2003-11-26 Bone plate
NO20035260A NO20035260D0 (en) 2001-05-28 2003-11-27 Bone plate for fixation of the proximal overarmsben
HK04101507A HK1058750A1 (en) 2001-05-28 2004-03-01 Bone plate for the fixation of fractures of the proximal humerus
US12/637,405 US8460344B2 (en) 2001-05-28 2009-12-14 Bone plate
US10/721,895 Continuation US7655029B2 (en) 2001-05-28 2003-11-26 Bone plate
WO2002096309A1 true WO2002096309A1 (en) 2002-12-05
WO2004087005A2 (en) 2003-03-27 2004-10-14 Hand Innovations, Llc Bone fracture fixation system with subchondral and articular surface support
EP1610700A2 (en) * 2003-03-26 2006-01-04 Swiss Orthopedic Solutions SA Locking bone plate
EP1677690A1 (en) * 2003-09-17 2006-07-12 Hand Innovations, LLC Anatomical distal radius fracture fixation plate and methods of using the same
WO2010115403A1 (en) * 2009-04-07 2010-10-14 Merete Medical Gmbh Apparatus for the constant-angle fixation and compression of a fracture or osteotomy of a bone
CN1878507B (en) 2003-09-17 2011-11-23 汉德创新有限责任公司 Anatomical distal radius fracture fixation plate and methods of using the same
EP2476388A1 (en) 2011-01-17 2012-07-18 HG Medical GmbH Osteosynthesis plate, in particular radius plate or ulnar plate, for stabilising bone fractures
EP2584983B1 (en) 2010-06-24 2015-04-15 AAP Implantate AG Bone plate and fixation system comprising a bone plate
EP1610700A4 (en) * 2003-03-26 2006-05-17 Swiss Orthopedic Solutions Sa Locking bone plate
EP1605842A2 (en) * 2003-03-27 2005-12-21 Hand Innovations, LLC Bone fracture fixation system with subchondral and articular surface support
EP1605842A4 (en) * 2003-03-27 2008-06-04 Hand Innovations Llc Bone fracture fixation system with subchondral and articular surface support
EP1677690A4 (en) * 2003-09-17 2008-12-03 Depuy Products Inc Anatomical distal radius fracture fixation plate and methods of using the same
AU2003271507B2 (en) * 2003-10-30 2009-04-09 Synthes Gmbh Bone plate
EP1713409A2 (en) * 2004-01-23 2006-10-25 Depuy Products, Inc. System for stabilization of fractures of convex articular bone surfaces including subchondral support structure
EP1713409A4 (en) * 2004-01-23 2009-04-22 Depuy Products Inc System for stabilization of fractures of convex articular bone surfaces including subchondral support structure
DE102009016394A1 (en) 2009-04-07 2010-10-21 Merete Medical Gmbh A device for angle-stable fixation and compression of a fracture site or osteotomy to a bone
AU2001258138B2 (en) 2004-10-28
Ref document number: 2001931311
Ref document number: 2001258138
Ref document number: PV2003-3212
Ref document number: 2002592827
Ref document number: 2448522
Ref document number: PA/a/2003/010812
Ref document number: 10721895
Ref document number: 018233139
Ref document number: 1020037015663