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Inducing tissue adhesions using surgical adjuncts and medicants

  • US 10,245,034 B2
  • Filed: 08/31/2015
  • Issued: 04/02/2019
  • Est. Priority Date: 08/31/2015
  • Status: Active Grant
First Claim
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1. A staple cartridge assembly for use with a surgical stapler, comprising:

  • a cartridge body having a plurality of staple cavities, each staple cavity having a surgical staple disposed therein;

    a biocompatible adjunct material releasably retained on the cartridge body and configured to be delivered to lung tissue by deployment of the staples in the cartridge body to form at least one line of deployed staples, the adjunct material having a conformable layer, a reinforcing layer, and a barrier layer disposed between the conformable layer and the reinforcing layer, the conformable layer being configured to conform to an irregular surface of lung tissue such that the conformable layer is configured to conform to expansion and extension of lung tissue; and

    an effective amount of at least one medicant, the at least one medicant being disposed within and releasable from the conformable layer, the at least one medicant being effective to induce tissue adhesions adjacent the at least one line of deployed staples, the barrier layer preventing release of the medicant from the conformable layer into the reinforcing layer,wherein the adjunct material includes a carrier configured to undergo a phase change from a solid state to a liquid state, the at least one medicant being configured to be released from the adjunct material with the carrier in the liquid state but not in the solid state, the at least one medicant being encapsulated in microcapsules dispersed in the carrier, the microcapsules being configured to adhere to soft tissue by having a coating thereon of an adhesive tissue adherent agent.

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