LOW GLASS TRANSITION TEMPERATURE BIOABSORBABLE POLYMER ADHESIVE FOR RELEASABLY ATTACHING A STAPLE BUTTRESS TO A SURGICAL STAPLER

• Main Authors: BEZWADA RAO S, WIDENHOUSE CHRISTOPHER W, SHELTON IV FREDERICK E
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2018
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DIAGNOSIS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; SURGERY; THEIR PREPARATION OR CHEMICAL WORKING-UP

A surgical stapler end effector comprises a staple cartridge, an anvil, and a buttress assembly. The staple cartridge comprises a plurality of staples and a deck. The staple cartridge is operable to drive the staples through the deck. The anvil is movable from an open position toward the staple cartridge to reach a closed position. The anvil includes an underside having staple forming surface configured to receive staples driven through the deck. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material comprises a polymer. The polymer is bioabsorbable. The polymer has glass transition temperature (Tg) at or below 0 DEG C. 本发明提供了种外科缝合器端部执行器，所述端部执行器包括钉仓、砧座和支撑物组件。所述钉仓包括多个钉和个平台。所述钉仓能够操作以驱动所述钉穿过所述平台。所述砧座能够从打开位置朝所述钉仓移动到达闭合位置。所述砧座包括下侧，所述下侧具有钉成形表面，所述钉成形表面被构造成能够接收被驱动穿过所述平台的钉。所述支撑物组件包括支撑物主体和粘合剂材料。所述粘合剂材料包含聚合物。所述聚合物为可生物吸收的。所述聚合物具有等于或低于0℃的玻璃化转变温度(Tg)。