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Surgical instrument with fluid fillable buttress

  • US 9,999,408 B2
  • Filed: 09/14/2011
  • Issued: 06/19/2018
  • Est. Priority Date: 09/14/2011
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • (a) a surgical cutter comprising a distal end and a proximal end, wherein the proximal end comprises a handle, wherein the distal end comprises an anvil and a lower jaw, wherein the anvil and the lower jaw are configured to clamp tissue, wherein the surgical cutter is configured to sever tissue clamped by the anvil and the lower jaw; and

    (b) a buttress filled with a liquid, wherein the buttress is configured to be placed between the anvil and the lower jaw, wherein the buttress is configured to transition between a first configuration and a second configuration, wherein a height of the buttress is generally constant along a width of the buttress in the first configuration, wherein the anvil and the lower jaw are operable to clamp the buttress to reach the second configuration, wherein the buttress includes a compressive portion and a pressure portion in the second configuration, the pressure portion having a greater height than the compressive portion, wherein the compressive portion extends outwardly from the anvil and lower jaw, wherein the buttress is configured to be severed and stapled by the surgical cutter substantially contemporaneously with when the surgical cutter severs tissue, wherein the pressure portion is configured to urge the liquid through the compressive portion only once the buttress is severed.

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