Patent EP0495673A1 successfully refreshed from Google Patents.
EP0495673A1
Expired / Lapsed
EP
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Pull-through circular anastomosic intraluminal stapler with fastener means
Assignee: Ethicon Inc
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Filing: 1992-01-17
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Granted: —
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Expires: 2012-01-17
Abstract
Abstract A mechanism which is capable of anastomosis of two lumens by an absorbable fastener. The fastener is made from two washer-like plates. One such plate has holes (34) to receive latching prongs (24) protruding from the other plate. Fastening is done through a single linear motion that causes the prongs (24) to pierce the tissue, latches the prongs (24) into a receiver (34) and causes a knife blade to cut through excess fastener material and tissue. The ease of removal, by pulling the mechanism thorugh the formed anastomosis, is greatly enhanced. The system can be used such that the plates can be placed in any configuration to properly anastomose tissue.
Inventors
- 👤 Ronald J. Brinkerhoff
- 👤 Michael B. Miller
- 👤 Mark S. Zeiner
- 👤 James A. Transue
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1114; A61B17/1155; A61B2017/00004; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30476; A61F2002/305; A61F2220/00; A61F2220/0025; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45524; Y10T24/45529; Y10T24/45534
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
60 words
An anastomotic tissue fastener comprising: (a) a circular tissue-piercing ring containing a plurality of tissue piercing prongs for insertion through tissue; and (b) a circular receiving ring containing a plurality of receptors capable of locking said prongs therein; wherein tissue is held between said piercing ring and said receiving ring by being maintained on said prongs locked within said receptors.
Claim 2
Dependent Claim
13 words
The fastener of claim 1 wherein said rings are made of absorbable materials.
Claim 3
Dependent Claim
33 words
The fastener of claim 1 or claim 2 wherein said prongs contain detent means and said receptors contain locking means engageable with said detent means for locking said prongs on said retaining ring.
Claim 4
Dependent Claim
19 words
The fastener of any one of claims 1 to 3, wherein there are at least six prongs and receptors.
Claim 5
Dependent Claim
61 words
An absorbable anastomotic tissue fastener comprising: (a) a tissue piercing plate containing a plurality of tissue piercing prongs for insertion through tissue; and (b) a receiving plate containing a plurality of receptors capable of locking said prongs therein; wherein said tissue is held between said piercing plate and said receiving plate by being maintained on said prongs locked within said receptors.
Claim 6
Dependent Claim
25 words
The fastener of claim 5 wherein said plates are circular in shape, and said prongs and receptors are positioned on the circumferences of said plates.
Claim 7
Dependent Claim
17 words
The fastener of claim 5 or claim 6 wherein said plates are absorbable by the human body.
Claim 8
Dependent Claim
51 words
The fastener of claim 6 or claim 7, wherein said plates are frangible inside said circumferences such that upon breaking said piercing plate, said prongs are contained on a ring on said circumference and such that upon breaking said receiving plate, said receptors are contained on a ring on said circumference.
Claim 9
Dependent Claim
32 words
The fastener of any one of claims 5 to 8 wherein said prongs contain detent means and said receptors contain latch means such that said detent means locks on said latch means.
Claim 10
Dependent Claim
16 words
The fastener of any one of claims 5 to 10, wherein said plates are generally flat.
Claim 11
Dependent Claim
52 words
The fastener of any one of claims 5 to 10, wherein each of said plates are frangible along a weakened portion of said plate, each said weakened portion comprising a ring of reduced thickness located on said plate and capable of breaking upon the exertion of a shear force on said plate.
Claim 12
Dependent Claim
19 words
The fastener of any one of claims 1 to 11, where said prongs are sharpened to readily pierce tissue.
Claim 13
Dependent Claim
140 words
An instrument for anastomotic tissue fastening comprising: an anvil capable of holding a first absorbable staple ring; a driving mechanism capable of holding a second absorbable staple ring which mates and locks with said first absorbable staple ring, said driving means capable of placing said rings into proximity of each other; and knife means for cutting tissue, said knife means held within said driving mechanism; wherein one of said absorbable staple rings contains a plurality of tissue piercing prongs for insertion through tissue and the other of said absorbable staple rings contains a plurality of receptors capable of locking said prongs therein with tissue placed between said rings and on said prongs, and wherein said knife means are capable of cutting excess tissue contained inside the circumferences of said absorbable staple rings and being pulled through the joined staple rings.
Claim 14
Dependent Claim
33 words
The instrument of claim 13 wherein said prongs contain detent means and said receptors contain locking means for locking said receptors when said driving means bring said rings into proximity of each other.
Claim 15
Dependent Claim
30 words
The instrument of claim 13 or claim 14 further containing actuation means for bringing said rings into proximity, piercing the tissue, locking the rings and then cutting the excess tissue.
Claim 16
Dependent Claim
120 words
An instrument for anastomotic tissue fastening comprising: an anvil capable of holding a first absorbable staple plate; driving means capable of holding a second absorbable staple plate which self-aligns and locks with said first plate, said driving means capable of placing said plates into proximity of each other; and knife means for cutting tissue, said knife means held within said driving means, wherein one of said plates contains a plurality of tissue piercing prongs for insertion through tissue and the other of said plates contains a plurality of receptors capable of locking said prongs therein with tissue placed between said plates and on said prongs and wherein said knife means are capable of cutting excess tissue held between said plates.
Claim 17
Dependent Claim
33 words
The instrument of claim 16, wherein said prongs contain detent means and said receptors contain locking means for locking said receptors when said driving means bring said plates into proximity of each other.
Claim 18
Dependent Claim
30 words
The instrument of claim 16 or claim 17, further containing actuation means for bringing said plates into proximity, piercing the tissue, locking the plates and then cutting the excess tissue.
Claim 19
Dependent Claim
30 words
The instrument of any one of claims 16 to 18, wherein said plates are circular in shape, and said prongs and receptors are positioned on the circumferences of said plates.
Claim 20
Dependent Claim
48 words
The instrument of claim 19 wherein said plates are frangible inside said circumferences such that upon breaking said piercing plate, said prongs are contained on a ring on said circumference and such that upon breaking said receiving plate, said receptors are contained on a ring on said circumference.
Claim 21
Dependent Claim
19 words
The instrument of any one of claims 16 to 20, wherein said prongs are sharpened to readily pierce tissue.
Claim 22
Dependent Claim
32 words
The instrument of any one of claims 16 to 21, wherein said prongs contain detent means and said receptors contain latch means such that said detent means locks on said latch means.
Claim 23
Dependent Claim
16 words
The instrument of any one of claims 16 to 22, wherein said plates are generally flat.
Claim 24
Dependent Claim
37 words
The instrument of any one of claims 13 to 23, wherein said anvil further contains a die into which said knife means are actuable, said knife means exerting a shear force on said tissue against said die.
Claim 25
Dependent Claim
22 words
The instrument of claim 24 wherein said die is a female die and said knife shears said tissue against said female die.
Claim 26
Dependent Claim
63 words
The instrument of claim 24 as dependent on any one of claims 13 to 15, wherein said die is a male die and said driving means further contains a spring such that said spring causes said rings to lock together by holding said rings against one another, and after said locking takes place, said knife means shears the tissue against said male die.
Claim 27
Dependent Claim
63 words
The instrument of claim 24 as dependent on any one of claims 16 to 23, wherein said die is a male die and said driving means further contains a spring such that said spring causes said plates to lock together by holding said plates against one another, and after said locking takes place, said knife means shears the tissue against said male die.
Claim 28
Dependent Claim
52 words
The instrument of claim 24 as dependent on claim 16, wherein each of said plates are frangible along a weakened portion of said plate, each said weakened portion comprising a ring of reduced thickness located on said plate and capable of breaking upon the exertion of a shear force along said plate.
Claim 29
Dependent Claim
60 words
The instrument of claim 28 wherein said die is a male die and said driving means further contain a spring such that said spring causes said plates to lock together by holding said plates against one another, and after said locking takes place, said knife means shears the tissue and the weakened portion of said plates against the male die.
Claim 30
Dependent Claim
29 words
The instrument of claims 28 wherein said die is a female die and said knife shears said tissue and the weakened portion of said plates against the female die.
Claim 31
Dependent Claim
39 words
The instrument of any one of claims 28 to 30, further containing actuation means for bringing said plates into proximity, piercing the tissue, locking said plates and then cutting the excess tissue and the weakened portion of said plates.
Claim 32
Dependent Claim
43 words
The instrument of any one of claims 13 to 15 or claims 28 to 31, wherein said anvil and driving means are removable through the center of said rings such that said rings maintain proximated tissue therein upon the retraction of said instrument.
Claim 33
Dependent Claim
51 words
A stapler comprising: a head portion having a circular cross section; a driving mechanism, said driving mechanism connected by a longitudinal shaft to said head portion; and an anvil portion, said anvil portion connectable to said head portion and having a circular cross section smaller in diameter than said head portion.
Claim 34
Dependent Claim
18 words
The stapler of claim 33 further including fastener means inserted between said head portion and said anvil portion.
Claim 35
Dependent Claim
34 words
The stapler of claim 34 wherein said fastener means are circular and frangible circumferentially into an outer and inner portion and said anvil portion fits between the outer circumferential portion of said fastener means.
References Cited (Backward Citations)
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