Mesh implant for use in reconstruction of soft tissue defects
First Claim
1. A resorbable polymeric mesh implant having a modulus of elasticity in a first direction, the resorbable polymeric mesh implant comprising:
- a first resorbable material having a first modulus of elasticity in the first direction and a first time of substantial degradation; and
a second resorbable material having a second modulus of elasticity in the first direction and a second time of substantial degradation,wherein the first modulus of elasticity is greater than the second modulus of elasticity,wherein the second time of substantial degradation is longer than the first time of substantial degradation,wherein from a time of implantation of the resorbable polymeric mesh implant in a surrounding tissue to the first time of substantial degradation;
the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is equal to the first modulus of elasticity,the resorbable polymeric mesh implant is configured to absorb a first load in the first direction,the first load being substantially all of the load applied to the surrounding tissue in the first direction, andthe modulus of elasticity of the resorbable polymeric mesh implant in the first direction is configured to remain substantially constant as the load applied to the surrounding tissue in the first direction is varied,wherein from the first time of substantial degradation to the second time of substantial degradation;
the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is the second modulus of elasticity,a portion of the first load is transferred from the resorbable polymeric mesh implant to the surrounding tissue,the resorbable polymeric mesh implant is configured to absorb the remaining portion of the first load that is not transferred to the surrounding tissue, andthe modulus of elasticity of the resorbable polymeric mesh implant in the first direction is configured to remain substantially constant as the load applied to the surrounding tissue in the first direction is varied, andwherein the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is time-dependent irrespective of the load applied to the surrounding tissue in the first direction.
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Accused Products
Abstract
The present invention relates to a resorbable polymeric mesh implant, that is intended to be used in the reconstruction of soft tissue defects. The mesh implant comprises at least a first and a second material, wherein the second material is substantially degraded at a later point in time than the first material following the time of implantation. The mesh implant is adapted to have a predetermined modulus of elasticity that gradually is decreased until the mesh implant is completely degraded and subsequently resorbed. Due to the gradual decrease in the modulus of elasticity of the inventive mesh implant, the regenerating tissue may gradually take over the load applied to the tissue defect area.
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Citations
15 Claims
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1. A resorbable polymeric mesh implant having a modulus of elasticity in a first direction, the resorbable polymeric mesh implant comprising:
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a first resorbable material having a first modulus of elasticity in the first direction and a first time of substantial degradation; and a second resorbable material having a second modulus of elasticity in the first direction and a second time of substantial degradation, wherein the first modulus of elasticity is greater than the second modulus of elasticity, wherein the second time of substantial degradation is longer than the first time of substantial degradation, wherein from a time of implantation of the resorbable polymeric mesh implant in a surrounding tissue to the first time of substantial degradation; the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is equal to the first modulus of elasticity, the resorbable polymeric mesh implant is configured to absorb a first load in the first direction, the first load being substantially all of the load applied to the surrounding tissue in the first direction, and the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is configured to remain substantially constant as the load applied to the surrounding tissue in the first direction is varied, wherein from the first time of substantial degradation to the second time of substantial degradation; the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is the second modulus of elasticity, a portion of the first load is transferred from the resorbable polymeric mesh implant to the surrounding tissue, the resorbable polymeric mesh implant is configured to absorb the remaining portion of the first load that is not transferred to the surrounding tissue, and the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is configured to remain substantially constant as the load applied to the surrounding tissue in the first direction is varied, and wherein the modulus of elasticity of the resorbable polymeric mesh implant in the first direction is time-dependent irrespective of the load applied to the surrounding tissue in the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification