EP4021322A1 - Frakturfixationsplatte. - Google Patents
Frakturfixationsplatte.Info
- Publication number
- EP4021322A1 EP4021322A1 EP19808680.3A EP19808680A EP4021322A1 EP 4021322 A1 EP4021322 A1 EP 4021322A1 EP 19808680 A EP19808680 A EP 19808680A EP 4021322 A1 EP4021322 A1 EP 4021322A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fixation plate
- fracture fixation
- contact surface
- section
- bone
- 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.)
- Withdrawn
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 55
- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 20
- 210000002435 tendon Anatomy 0.000 claims description 3
- 241000251730 Chondrichthyes Species 0.000 claims 1
- 210000000623 ulna Anatomy 0.000 abstract description 5
- 241000826860 Trapezium Species 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
- A61B17/8014—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones the extension or compression force being caused by interaction of the plate hole and the screws
Definitions
- the invention relates to a fracture fixation plate according to the preamble of claim 1.
- a fracture plate which, however, has a special geometry which is rather disadvantageous for the intended purpose.
- the bone contact surface is concave in the area of the ulnar head section and flat in the area of the radial head section.
- the radius head section and preferably also the Uina head section are therefore used with regard to a) the distance between the head sections; b) the angle of elevation of the head sections and c) the angle of rotation around the longitudinal axes of the head sections adapted to the anatomy.
- a disadvantage of this known fracture plate is therefore the laborious adaptation of the bone contact surfaces of the head sections in order to establish good bone contact.
- the invention aims to provide a remedy here.
- the invention is based on the object of creating a fracture fixation plate which enables optimal bone contact between the bone contact surfaces of the head sections and the surfaces of the underlying bones or bone fragments.
- the invention solves the problem posed with a fracture fixation pin which has the features of claim 1.
- CONFIRMATION COPY the bone contact surface which is curved in the area of the radius head section, ensures that the bone contact surface rests on the bone surface in a stable and secure manner.
- the bone contact surface is designed to be spherically convex in the area of the ulnar head section.
- the bone contact surface is convex, preferably cylindrically arched, in the area of the radius head section (6).
- the bone contact surface in the area of the ulnar head section can be essentially trapezoidal, with the longer base line of the trapezium lying distally.
- the bone contact surface in the area of the radius head section can be essentially rectangular, with one of the two shorter sides of the rectangle lying distally.
- the incision formed between the two head sections and their neck sections is dimensioned / shaped in such a way that the flexor pollicis longus (FPL) tendon can be accommodated therein.
- the incision can be V-shaped and preferably widen continuously towards the distal side.
- the incision has, measured in the plane of the plate, the area F E , which can be a maximum of 10%, preferably a maximum of 6% of the total area F TOT of the fracture fixation plate, including the incision and any plate holes measured.
- the area F E is preferably at least 10 mm 2 , preferably at least 20 mm 2.
- the area F E is preferably a maximum of 60 mm 2 , preferably a maximum of 45 mm 2
- the body section (2) has at least one threaded hole with a non-rotating, positive-locking threaded hole insert made of a softer material than the material of the bone fixation plate.
- the ulnar head section and preferably the radius head section can each have at least one threaded hole with a twist-proof, form-fitting one Threaded hole insert made of a softer material than the material of the bone fixation plate.
- the ulnar head section can have three threaded holes, preferably with a non-rotating, positive-locking threaded hole insert made of a softer material than the material of the bone fixation spade.
- the radius head section can have two or three threaded holes, preferably with a non-rotating, positive-locking threaded hole insert made of a softer material than the material of the bone fixation pins.
- the convexly arched bone contact surface preferably has a curvature in the region of the radius head section which extends from the distal end of the elongated body section to a distal end of the radius head section.
- FIG. 1 shows a perspective view of an embodiment of the fracture fixation plate according to the invention
- FIG. 2 shows a plan view of the embodiment of the fracture fixation plate according to the invention shown in FIG. 1;
- FIG. 3 shows a side view of the embodiment of the fracture fixation plate according to the invention shown in FIG. 1;
- FIG. 4 shows a front view of the ulna and radius head sections of the embodiment of the fracture fixation plate according to the invention shown in FIG. 1;
- FIG. 5 shows a perspective view of the embodiment of the fracture fixation plate according to the invention shown in FIG. 1.
- the embodiment of the fracture fixation plate 1 according to the invention shown in FIGS. 1-5 essentially comprises an elongated body section 2 which has a free proximal end 3 and a distal end 4, an ulnar head section 5 which adjoins the distal end 4, and a radius head section 6, which also adjoins the distal end 4 of the body section 2.
- the ulnar head section 5 and the radial head section 6 diverge distally from one another.
- the ulna and the radius head section 5; 6 each via a corresponding neck section 51; 61 independently of one another connected to the distal end 4 of the body portion 2.
- the body section 2, the ulnar head section 5 and the radius head section 5; 6 are each provided with a number of threaded holes 7 for receiving bone fastening elements 8, the body section 2 additionally having an elongated compression hole 9
- the fracture fixation plate 1 has a bone contact surface 10 and an opposing surface 11, the bone contact surface 10 being spherically convex in the area of the ulnar head section 5 and the
- Bone contact surface 10 is formed in the region of the radius head section 6 in a convex cylindrical shape.
- both bone contact surfaces 10 have a bulged shape, the bone contact surface 10 being spherically convex in the area of the ulnar head section 5 and being cylindrically arched in the area of the radius head section 6.
- the convexly curved bone contact surface 10 has a curvature in the area of the radius head section 6, which extends from the distal end 4 of the elongated body section 2 to a distal end of the radius head section 6.
- the bone contact surface 10 in the area of the ulnar head section 5 is essentially trapezoidal, the longer base line of the trapezium coming to lie distally.
- the Bone contact surface 10 in the area of the radius head section 6 is essentially rectangular, with one of the two shorter sides of the rectangle coming to lie distally.
- an incision 12 is formed which is dimensioned / shaped in such a way that the flexor pollicis lungus (FPL) tendon can be received therein.
- This incision 12 is V-shaped and widens continuously towards the distal side.
- the incision 12 has, measured in the plane of the plate, an area F E of 30 mm 2 .
- the total area F TOT of the fracture fixation plate 1, including the incision 12 and the threaded holes 7, is. 630 mm 2 .
- the total area F TOT is 686 mm 2 and the area F E of the incision is 35 mm 2 .
- the threaded holes 7 arranged in the body section 2 each comprise a non-rotating, positive-locking threaded hole insert 13, which is made from a softer material than the material of the bone fixation plate 1.
- the threaded holes 7 arranged in the ulnar head section 5 and in the radius head section 6 also each have a twist-proof, form-fitting threaded hole insert 13 made of a softer material than the material of the bone fixation plate 1.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2019/000034 WO2021087627A1 (de) | 2019-11-07 | 2019-11-07 | Frakturfixationsplatte. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4021322A1 true EP4021322A1 (de) | 2022-07-06 |
Family
ID=68654307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19808680.3A Withdrawn EP4021322A1 (de) | 2019-11-07 | 2019-11-07 | Frakturfixationsplatte. |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220387087A1 (de) |
EP (1) | EP4021322A1 (de) |
AU (1) | AU2019473212A1 (de) |
WO (1) | WO2021087627A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7537604B2 (en) * | 2002-11-19 | 2009-05-26 | Acumed Llc | Bone plates with slots |
DE50210145D1 (de) * | 2002-12-02 | 2007-06-21 | Synthes Gmbh | Implantat für die knochenfixation |
US7867260B2 (en) * | 2003-11-05 | 2011-01-11 | Koenigsee Implantate Und Instrumente Zur Osteosynthese Gmbh | Plate used to stabilise distal radius fractures |
JP4644606B2 (ja) * | 2006-01-19 | 2011-03-02 | 裕昭 坂野 | 橈骨遠位端背側整復器具 |
US8021402B2 (en) * | 2006-03-07 | 2011-09-20 | Orthohelix Surgical Designs, Inc. | Distal radius plate |
US10342583B2 (en) * | 2010-10-01 | 2019-07-09 | K2M, Inc. | Dynamic plate with inserts |
ES2663362T3 (es) | 2011-02-14 | 2018-04-12 | Skeletal Dynamics, Llc | Placa de fijación de fracturas |
US10231766B2 (en) * | 2013-12-23 | 2019-03-19 | Smith & Nephew, Inc. | Distal radius plate |
-
2019
- 2019-11-07 AU AU2019473212A patent/AU2019473212A1/en not_active Abandoned
- 2019-11-07 WO PCT/CH2019/000034 patent/WO2021087627A1/de unknown
- 2019-11-07 EP EP19808680.3A patent/EP4021322A1/de not_active Withdrawn
- 2019-11-07 US US17/774,536 patent/US20220387087A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2021087627A1 (de) | 2021-05-14 |
AU2019473212A1 (en) | 2022-05-05 |
US20220387087A1 (en) | 2022-12-08 |
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