Luminal anastomotic device and method
First Claim
1. A minimally invasive surgical stapler for end to end anastomosis that will assist in stapler placement, the stapler having an expanding head portion and an expanding anvil portion, wherein a diameter of the expanding stapler head portion and stapler anvil portion of the stapler is smaller during insertion and retraction than at firma of the surgical stapler, the surgical stapler further comprising:
- an elongated body;
the expanding head portion at a first end of the elongated body, the expanding head portion including a plurality of segments, each segment having at least one staple, wherein the segments move from a first inward retracted position to at least a second position radially outward from the first position;
the expanding anvil portion coupled to the head portion, the staples being fired against the anvil portion, the expanding anvil portion including a plurality of segments, wherein the segments move from a first inward retracted position to at least a second position radially outward from the first position; and
a staple firing mechanism for firing the staples of each head segment against the anvil segments.
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Abstract
An end to end anastomotic stapling device connects two lumen sections avoiding constricture at the anastomotic ring. An intraluminal end to end anastomotic stapler includes an expanding head and anvil designed to fire an anastomotic ring having an inner diameter at least equal to the nominal inner diameter of the remaining lumen sections. An extraluminal end to end lumen stapler is described attaching the lumen sections with an exterior flange type connection having anastomotic rings with a diameter larger than the inner diameter of the lumen sections whereby the anastomotic site has a diameter at least as great as the adjacent lumen sections.
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Citations
20 Claims
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1. A minimally invasive surgical stapler for end to end anastomosis that will assist in stapler placement, the stapler having an expanding head portion and an expanding anvil portion, wherein a diameter of the expanding stapler head portion and stapler anvil portion of the stapler is smaller during insertion and retraction than at firma of the surgical stapler, the surgical stapler further comprising:
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an elongated body;
the expanding head portion at a first end of the elongated body, the expanding head portion including a plurality of segments, each segment having at least one staple, wherein the segments move from a first inward retracted position to at least a second position radially outward from the first position;
the expanding anvil portion coupled to the head portion, the staples being fired against the anvil portion, the expanding anvil portion including a plurality of segments, wherein the segments move from a first inward retracted position to at least a second position radially outward from the first position; and
a staple firing mechanism for firing the staples of each head segment against the anvil segments. - View Dependent Claims (2, 3)
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4. A minimally invasive surgical stapler for end to end anastomosis that will assist in stapler placement, the stapler having an expanding head portion and an expanding anvil portion, wherein a diameter of the expanding stapler head portion and stapler anvil portion of the stapler is smaller during insertion and retraction than at firing of the surgical stapler, the surgical stapler further comprising:
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an elongated body;
the expanding head portion at a first end of the body, the expanding head portion including a plurality of segments, each segment having at least one staple, wherein the segments move from a first inward retracted position to at least a second position radially outward from the first position;
the expanding anvil portion coupled to the head portion, the staples being fired against the anvil portion, the expanding anvil portion including a plurality of segments, wherein the segments move from a first inward retracted position to at least a second position radially outward from the first position; and
a staple firing mechanism for firing the staples of each head segment against the anvil segments.
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5. An anastomotic stapler for end to end anastomosis forming an anastomotic ring utilizing staples formed in a pair of offset annular arrays of staples to couple the end of a first lumen section to the end of a second lumen section, comprising:
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a head portion including a stapling mechanism; and
an anvil portion;
wherein both the head portion and the anvil portion can be moved from a retracted position having a first diameter to an expanded position having a second larger diameter, and back to a retracted position after firing.- View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. An anastomotic surgical stapler for end to end anastomosis forming an anastomotic ring to couple the end of a first lumen section to the end of a second lumen section, comprising:
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an elongated body;
operator controls at one end of the elongated body;
a head portion at an opposite end of the elongated body, the head portion including a stapling mechanism having an annular array of staples that forms the anastomotic ring coupling the end of a first lumen section to the end of a second lumen section; and
an anvil portion coupled to the head portion, the annular array of staples being fired against the anvil portion; and
means for maximizing at least at the time of firing the staples the inner diameter of the annular array of staples that form the anastomotic ring coupling the end of a first lumen section to the end of a second lumen section, wherein the inner diameter of the annular array of staples at least at the time of firing the staples is maximized relative to the outer diameter of the surgical stapler during insertion and withdrawal of the surgical stapler. - View Dependent Claims (15, 16, 17, 18)
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19. An anastomotic surgical stapler for end to end anastomosis forming an anastomotic ring to couple the end of a first lumen section to the end of a second lumen section, comprising:
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an elongated body;
operator controls at one end of the elongated body;
a head portion at an opposite end of the elongated body, the head portion including a stapling mechanism having an annular array of staples that forms the anastomotic ring coupling the end of a first lumen section to the end of a second lumen section, and an annular knife positioned radially inward of the annular array of staples; and
an anvil portion coupled to the head portion, the annular array of staples being fired against the anvil portion; and
means for maximizing the inner diameter of the annular knife at least at the time of firing of the staples, wherein the inner diameter of the annular knife at least at the time of the firing of the staples is maximized relative to the outer diameter of the surgical stapler during insertion and withdrawal of the surgical stapler. - View Dependent Claims (20)
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Specification