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US4457028A Expired / Lapsed US ⏱️ 0.0 years remaining

Surgical materials suitable for use with bone cements

Assignee: DRAENERT KLAUS GABRIEL-MAX-STR 3 D-8000 MUNCHEN 90 W GERMANY
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Filing: 1982-10-14
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Granted: 1984-07-03
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Expires: 2002-10-14
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Abstract

Abstract A surgical network material is made from filaments of resorbable organic polymers with a thickness of about 50-300 μm and/or of non-resorbable filaments or wires with a thickness of 100-750 μm. The network which has an internal mesh width of about 1-10 mm, can be used, in particular together with bone cements based on polyacrylates or polymethacrylates, in combating bone defects.

Inventors

  • 👤 Klaus Draenert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 16:13
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/14; A61L31/148; A61B; A61B17/00; A61B17/56; A61B17/58; A61F; A61F2/00; A61F2/02; A61F2/28; A61L27/00; A61L27/14; A61L27/22; A61L27/24; A61L31/02; A61L31/022; A61L31/04; A61L31/06; A61L31/08; A61L31/082; A61L31/086; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2/30767; A61F2/30907; A61F2002/30909; A61F2210/00; A61F2210/0004; A61F2310/00; A61F2310/00005; A61F2310/00365; A61L2430/00; A61L2430/02

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 63 words
A combination for repair or other treatment of a bone defect comprising a surgical network material, formed of physiologically acceptable filaments which are resorbable and are of a thickness of about 50-about 300 μm the network having an internal mesh width of about 1-10 mm, and, in operative association therewith, a bone cement useful in repair or other treatment of a bone defect.
Claim 2
Dependent Claim 63 words
A combination for repair or other treatment of a bone defect comprising a surgical network material, formed of physiologically acceptable filaments which are resorbable and are of a thickness of about 50-about 300 μm the network having an internal mesh width of about 1-10 mm, and, in operative association therewith, a bone cement useful in repair or other treatment of a bone defect.
Claim 3
Dependent Claim 12 words
The combination of claim 1, wherein the filaments are resorbable organic polymers.
Claim 4
Dependent Claim 24 words
The combination material of claim 3, wherein the resorbable filaments are made of catgut, collagen, polyglycolides, polylactides, copolymers of lactide and glycolide or polyaminoacids.
Claim 5
Dependent Claim 16 words
The combination material of claim 3, wherein the resorbable polymer filaments have tricalcium phosphate incorporated therein.
Claim 6
Dependent Claim 23 words
The combination of claim 1, wherein the surgical network material has the shape of a socket, a cylinder, a tube or a sponge.
Claim 7
Dependent Claim 9 words
The combination material of claim 1 in sterile form.
Claim 8
Dependent Claim 33 words
In a method of combating bone defects in a patient comprising the use of bone cement, the improvement wherein the bone cement is used in the form of the combination of claim 1.
Claim 9
Dependent Claim 34 words
The combination of claim 1, wherein the surgical network material is of multi-layers, at least one layer being formed of filaments which are non-resorbable and are of a thickness of about 100-about 750 μm.
Claim 10
Dependent Claim 19 words
The combination of claim 8, wherein the filaments of at least one of said layers are non-resorbable metallic wires.
Claim 11
Dependent Claim 110 words
A bone cement preparation kit for bone repair or other treatment of a bone defect, consisting essentially of a surgical network material which is of multi layers, at least one layer being formed of physiologically acceptable filaments which are resorbable and are of a thickness of about 50-about 300 μm and at least one layer being formed of filaments which are non-resorbable and are of a thickness of about 100-about 750 μm, the network having an internal mesh width of about 1-10 mm and having a shape appropriate to the intended use, and a prepolymer and monomer for preparation of bone cement useful in bone repair or other bone treatment.
Claim 12
Dependent Claim 110 words
A bone cement preparation kit for bone repair or other treatment of a bone defect, consisting essentially of a surgical network material which is of multi layers, at least one layer being formed of physiologically acceptable filaments which are resorbable and are of a thickness of about 50-about 300 μm and at least one layer being formed of filaments which are non-resorbable and are of a thickness of about 100-about 750 μm, the network having an internal mesh width of about 1-10 mm and having a shape appropriate to the intended use, and a prepolymer and monomer for preparation of bone cement useful in bone repair or other bone treatment.
Claim 13
Dependent Claim 13 words
The bone cement preparation kit of claim 10, having polyacrylate or polymethacrylate base.
Claim 14
Dependent Claim 46 words
The bone cement preparation kit of claim 10, comprising a multi-layer stocking of about 20 to 30 cm length, 40 to 80 g of a polyacrylate and/or polymethacrylate, 20 to 40 ml of methylacrylate and/or methylmethacrylate, 5 to 60 g of resorbable tricalciumphosphate, and an antibiotic.
Claim 15
Dependent Claim 23 words
A method of implanting an endoprosthesis in a patient which comprises implanting the endoprosthesis using the bone cement preparation kit of claim 10.
Claim 16
Dependent Claim 25 words
A method of effecting linking osteosynthesis in a patient which comprises using the bone cement preparation kit of claim 10 to perform the linking osteosynthesis.

References Cited (Backward Citations)

US3463158A Cited
US3272204A Cited
US4093576A Cited
US4089071A Cited
US4064567A Cited
US4137921A Cited
US4365357A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-07-03 1988-01-02 1988-07-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-07-03 1992-01-02 1992-07-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-07-03 1996-01-02 1996-07-03 $7700.00 Window Closed / Lapsed

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