Cell scraper
AssigneeBecton, Dickinson and Company
InventorAndrew P. Muser
Life of this patent
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Abstract
A cell scraper includes a grip, an elongate arm and a scraper blade. The cell scraper includes a substrate molded from a substantially rigid plastic. The substrate includes a blade support remote from the grip. The cell scraper also includes a resilient material over-molded onto the substrate. The resilient material may be molded onto the grip to facilitate gripping. Additionally, the resilient material is molded around the blade support to define a flexible blade for efficiently scraping cells from a tissue culture vessel.
Claims21
An elongate cell scraper having opposite proximal and distal ends, a grip being defined adjacent said proximal end, an arm extending distally from said grip and a scraper blade extending from said arm to said distal end, said cell scraper including a unitary substrate extending from said grip, along said arm and toward said distal end, a distal portion of said substrate defining a blade support, said cell scraper further comprising a resilient material integrally disposed on said substrate, said resilient material surrounding said blade support and extending unitarily from said blade support to said distal end of said cell scraper, portions of said cell scraper formed from said resilient material including a flexible blade projecting distally beyond said support, wherein said blade support is formed from a different material than said resilient material.
A cell scraper having opposite proximal and distal ends, a grip being formed adjacent said proximal end, an elongate arm projecting distally from said grip and a scraper blade extending from said arm to said distal end, said cell scraper including a substrate unitarily molded from a thermoplastic material and extending from said grip, said substrate defining at least one recess in said grip and a blade support at an end of said arm remote from said grip, said cell scraper further including an elastomer integrally molded over at least part of said substrate, said elastomer filling said recess in said grip for defining at least one gripping region, said elastomer further covering said blade support and extending unitarily from said blade support to define a flexible blade which tapers to a substantially linear edge at said distal end, wherein said blade support is formed from a different material than said elastomer.
A cell scraper having a handle, an arm extending unitarily from said handle and a blade support extending unitarily from said arm, a blade formed from a material having a lower durometer than the blade support, the arm and the handle, the blade being molded to define a first unitary matrix of resilient material surrounding at least portions of said blade support and extending beyond said blade support to define a flexible blade.
Dependencies are inferred from the claim text.