US2005059997A1PendingUtilityA1

Circular stapler buttress

43
Priority: Sep 17, 2003Filed: Sep 17, 2003Published: Mar 17, 2005
Est. expirySep 17, 2023(expired)· nominal 20-yr term from priority
Inventors:Ann M. BaumanStuart E. BroylesJerald M. CrawleyJohn R. DaughertyNorman Pih
A61B 17/072A61B 17/115A61B 17/07292A61B 2017/07257
43
PatentIndex Score
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Cited by
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Claims

Abstract

A buttress for use with circular surgical staplers that does not require adhesive to securely fasten the buttress to the stapler and that self-aligns onto the stapler. Following cutting and stapling by the circular stapler, the buttress has an adaptive opening through its central region with a diameter smaller than the outer diameter of the stapler anvil. Because of relief features built into the buttress, the stapler anvil may be pulled through the buttress material without causing permanent alteration to the buttress. These relief features may be provided regardless of whether the buttress is made of inelastic or elastic materials. The buttress is generally circular in shape with an outer diameter sized to coincide with the outer diameter of the stapler body staple compression surface and the outer diameter of the anvil compression surface of a circular stapler with which it is used. Prior to surgical use, the buttress is provided with a generally circular hole in the central region that is sized to closely fit the central shaft of a circular stapler with which it is used.

Claims

exact text as granted — not AI-modified
1 . A reinforcement device for use with a circular stapler that is adapted to create and seal a surgical opening in a patient comprising: 
 a buttress adapted for mounting on the circular stapler, the stapler having an anvil that is larger in diameter than the surgical opening that is created by the stapler, wherein following stapling with the stapler, the buttress reinforces the surgical opening created by the stapler in the patient;    wherein the buttress includes at least one adaptive opening created by the circular stapler which corresponds to the surgical opening in the patient, said adaptive opening when circular having a diameter smaller than the diameter of the anvil, and wherein the adaptive opening in the buttress allows the anvil to be removed therethrough without causing permanent alteration to the buttress.    
     
     
         2 . The reinforcement device of  claim 1  wherein the permanent alteration includes tearing.  
     
     
         3 . The reinforcement device of  claim 1  wherein the permanent alteration includes permanent deformation to the adaptive opening created by the stapler.  
     
     
         4 . The reinforcement device of  claim 1  wherein the buttress has slits along a periphery of the adaptive opening.  
     
     
         5 . The reinforcement device of  claim 1  wherein the buttress is corrugated along a periphery of the adaptive opening.  
     
     
         6 . The reinforcement device of  claim 1  wherein the buttress self-aligns on the stapler.  
     
     
         7 . The reinforcement device of  claim 6  wherein the self-aligned buttress is retained on the stapler without use of an adhesive.  
     
     
         8 . The reinforcement device of  claim 6  wherein the buttress self-aligns with respect to a central shaft on the stapler.  
     
     
         9 . The reinforcement device of  claim 6  wherein the buttress self-aligns on the stapler by conforming to an edge delimiting an outer diameter of the stapler.  
     
     
         10 . The reinforcement device of  claim 1  wherein the reinforcement buttress comprises a bioabsorbable material.  
     
     
         11 . The reinforcement device of  claim 10 , wherein the bioabsorbable material comprises a copolymer of poly(glycolide:trimethylene carbonate).  
     
     
         12 . The reinforcement device of  claim 1  wherein the buttress includes a filler material.  
     
     
         13 . The reinforcement device of  claim 12  wherein the filler material comprises a therapeutic agent.  
     
     
         14 . The reinforcement device of  claim 12  wherein the filler material comprises a bioactive agent.  
     
     
         15 . The reinforcement device of  claim 1  wherein the buttress comprises an essentially inelastic material.  
     
     
         16 . The reinforcement device of  claim 1  wherein the buttress comprises an essentially elastic material.  
     
     
         17 . The reinforcement device of  claim 1  wherein the buttress comprises at least one polymeric material.  
     
     
         18 . The reinforcement device of  claim 17  wherein the polymeric material comprises polytetrafluoroethylene.  
     
     
         19 . The reinforcement device of  claim 18  wherein the polytetrafluoroethylene is porous expanded polytetrafluoroethylene.  
     
     
         20 . The reinforcement device of  claim 1  wherein the circular stapler is adapted to create an anastomotic junction between body tissue; and the buttress augments resistance to radial distension at the anastomotic junction.  
     
     
         21 . The reinforcement device of  claim 1  wherein the device has a reinforced central region that provides added rigidity to the central region.  
     
     
         22 . The reinforcement device of  claim 21  wherein the central region has greater thickness than other regions of the device.  
     
     
         23 . The reinforcement device of  claim 21  wherein the central region has denser material than other regions of the device.  
     
     
         24 . A reinforcement device for use with a circular stapler that is adapted to create a substantially circular hole in a patient, said circular stapler having a central shaft, comprising: 
 a buttress adapted for mounting on the central shaft of the circular stapler;    wherein the buttress self-aligns around the central shaft; and    wherein the buttress reinforces the hole created by the stapler in the patient.    
     
     
         25 . The reinforcement device of  claim 24  wherein the stapler includes an anvil that is larger in diameter than the circular hole that is created by the stapler.  
     
     
         26 . The reinforcement device of  claim 24  wherein the buttress comprises an essentially elastic material.  
     
     
         27 . The reinforcement device of  claim 24  wherein the buttress comprises an essentially inelastic material.  
     
     
         28 . The reinforcement device of  claim 24  wherein the buttress comprises at least one polymeric material.  
     
     
         29 . The reinforcement device of  claim 28  wherein the polymeric material comprises polytetrafluoroethylene.  
     
     
         30 . The reinforcement device of  claim 29  wherein the polytetrafluoroethylene is porous expanded polytetrafluoroethylene.  
     
     
         31 . The reinforcement device of  claim 24  wherein the buttress comprises a bioabsorbable material.  
     
     
         32 . The reinforcement device of  claim 31 , wherein the bioabsorbable material comprises a copolymer of poly(glycolide:trimethylene carbonate).  
     
     
         33 . The reinforcement device of  claim 24  wherein the buttress includes a filler.  
     
     
         34 . The reinforcement device of  claim 33  wherein the filler includes a therapeutic agent.  
     
     
         35 . The reinforcement device of  claim 33  wherein the filler includes a bioactive agent.  
     
     
         36 . A reinforcement device comprising: a circular stapler that is adapted to create a substantially circular hole in a patient, said circular stapler having a stapler anvil compression surface outer diameter and a stapler body compression surface outer diameter; a first buttress adapted to self align onto the stapler anvil compression surface outer diameter and the stapler body compression surface outer diameter; a second buttress adapted to self align onto the stapler body compression surface outer diameter; and 
 wherein the first and second buttresses reinforce the hole created by the stapler in the patient when staples are applied.    
     
     
         37 . The reinforcement device of  claim 36  wherein the stapler includes an anvil that is larger in diameter than the circular hole that is created by the stapler.  
     
     
         38 . The reinforcement device of  claim 36  wherein the buttress comprises an essentially elastic material.  
     
     
         39 . The reinforcement device of  claim 36  wherein the buttress comprises an essentially inelastic material.  
     
     
         40 . The reinforcement device of  claim 36  wherein the buttress comprises at least one polymeric material.  
     
     
         41 . The reinforcement device of  claim 40  wherein the polymeric material comprises polytetrafluoroethylene.  
     
     
         42 . The reinforcement device of  claim 41  wherein the polytetrafluoroethylene is porous expanded polytetrafluoroethylene.  
     
     
         43 . The reinforcement device of  claim 36  wherein the buttress comprises a bioabsorbable material.  
     
     
         44 . The reinforcement device of  claim 43 , wherein the bioabsorbable material comprises a copolymer of poly(glycolide:trimethylene carbonate).  
     
     
         45 . The reinforcement device of  claim 36  wherein the buttress includes a filler.  
     
     
         46 . The reinforcement device of  claim 45  wherein the filler includes a therapeutic agent.  
     
     
         47 . The reinforcement device of  claim 45  wherein the filler includes a bioactive agent.  
     
     
         48 . A reinforcement device comprising: a circular stapler that is adapted to create a substantially circular hole in a patient, said circular stapler having a stapler anvil compression surface outer diameter at least one buttress adapted to self align onto the stapler anvil compression surface outer diameter; and 
 wherein the buttress reinforces the hole created by the stapler in the patient when staples are applied.    
     
     
         49 . The reinforcement device of  claim 48  wherein the stapler includes an anvil that is larger in diameter than the circular hole that is created by the stapler.  
     
     
         50 . The reinforcement device of  claim 48  wherein the buttress comprises an essentially elastic material.  
     
     
         51 . The reinforcement device of  claim 48  wherein the buttress comprises an essentially inelastic material.  
     
     
         52 . The reinforcement device of  claim 48  wherein the buttress comprises at least one polymeric material.  
     
     
         53 . The reinforcement device of  claim 52  wherein the polymeric material comprises polytetrafluoroethylene.  
     
     
         54 . The reinforcement device of  claim 53  wherein the polytetrafluoroethylene is porous expanded polytetrafluoroethylene.  
     
     
         55 . The reinforcement device of  claim 48  wherein the buttress comprises a bioabsorbable material.  
     
     
         56 . The reinforcement device of  claim 55 , wherein the bioabsorbable material comprises a copolymer of poly(glycolide:trimethylene carbonate).  
     
     
         57 . The reinforcement device of  claim 48  wherein the buttress includes a filler.  
     
     
         58 . The reinforcement device of  claim 57  wherein the filler includes a therapeutic agent.  
     
     
         59 . The reinforcement device of  claim 57  wherein the filler includes a bioactive agent.  
     
     
         60 . A reinforcement device comprising: a circular stapler that is adapted to create a substantially circular hole in a patient, said circular stapler having a stapler body compression surface outer diameter at least one buttress adapted to self align onto the stapler body compression surface outer diameter; 
 wherein the buttress reinforces the hole created by the stapler in the patient when staples are applied.    
     
     
         61 . The reinforcement device of  claim 60  wherein the stapler includes an anvil that is larger in diameter than the circular hole that is created by the stapler.  
     
     
         62 . The reinforcement device of  claim 60  wherein the buttress comprises an essentially elastic material.  
     
     
         63 . The reinforcement device of  claim 60  wherein the buttress comprises an essentially inelastic material.  
     
     
         64 . The reinforcement device of  claim 60  wherein the buttress comprises at least one polymeric material.  
     
     
         65 . The reinforcement device of  claim 64  wherein the polymeric material comprises polytetrafluoroethylene.  
     
     
         66 . The reinforcement device of  claim 65  wherein the polytetrafluoroethylene is porous expanded polytetrafluoroethylene.  
     
     
         67 . The reinforcement device of  claim 60  wherein the buttress comprises a bioabsorbable material.  
     
     
         68 . The reinforcement device of  claim 67 , wherein the bioabsorbable material comprises a copolymer of poly(glycolide:trimethylene carbonate).  
     
     
         69 . The reinforcement device of  claim 60  wherein the buttress includes a filler.  
     
     
         70 . The reinforcement device of  claim 69  wherein the filler includes a therapeutic agent.  
     
     
         71 . The reinforcement device of  claim 69  wherein the filler includes a bioactive agent.

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