US 7,101,380 C1 (11,365th)
Surgical device for retrieval of foreign objects from a body
Stepan Khachin, Tomsk (RU); and Vladimir Khachin, Tomsk (RU)
Filed by Stepan Khachin, Tomsk (RU); and Vladimir Khachin, Tomsk (RU)
Assigned to Nordson Corporation
Reexamination Request No. 90/013,970, Jun. 9, 2017.
Reexamination Certificate for Patent 7,101,380, issued Sep. 5, 2006, Appl. No. 10/216,672, Aug. 12, 2002.
Application 90/013,970 is a continuation in part of application No. PCT/IL01/00591, filed on Jun. 28, 2001.
Ex Parte Reexamination Certificate issued on Aug. 8, 2018.
Int. Cl. A61B 17/22 (2006.01); A61B 17/221 (2006.01)
CPC A61B 17/221 (2013.01) [A61B 2017/2212 (2013.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
Claims 3, 4, 17, 18 and 30 are cancelled.
Claims 1, 12, 23, 27-29 and 31-34 are determined to be patentable as amended.
Claims 2, 5-11, 13-16, 19-22 and 24-26, dependent on an amended claim, are determined to be patentable.
New claims 35-46 are added and determined to be patentable.
1. A retrieval basket for entrapping and retaining an object located in a body for its extraction therefrom, the basket comprising [ :]
a structure composed of a proximal portion and a distal portion, the proximal portion extending from a proximal end of the basket, and the distal portion extending from a distal end of the basket, and the proximal and distal portions being joined together at a location between the proximal and distal ends,
said basket being constituted by a plurality of filaments extending from the proximal end towards the distal end and being in the form of loops, wherein at least a part of the loops are interlaced so as to define a net at least in the distal portion, said net presenting a plurality of holes [ having sizes decreasing from the proximal end towards the distal end and ] dimensioned to cause said net to retain objects entrapped in said basket for extraction from the body,
said filaments are made of a material that imparts structural rigidity and dilatation abilities to the basket when opened, and
said filaments have portions that are bound [ twisted ] together to define a plurality of branches [ strands ] over the proximal portion for coupling to a pushing element at said proximal end ; [ ,]
wherein at least a part of the filaments, which originate from the proximal end, also arrive at the proximal end after interlacing,
wherein the net is formed of holes having a size decreasing from the proximal end towards the distal end
[ wherein each strand ramifies at least at two branching points located between the proximal end and the distal end into the loops having various shapes and sizes,
wherein at least two filaments that emerge from a first branching point of said at least at two branching points each extend towards the distal end and arrive at neighboring branching points to form two different loops, and
wherein at least one filament that emerges from a second branching point of said at least at two branching points extends towards the distal end and returns to the same branching point after forming a single loop that is interlaced with at least one other loop of another strand at the distal end of the basket.]
12. A surgical device for removing a foreign object from a body, [ the surgical device ] comprising:
the retrieval basket according to claim 1; [ 35, ] and
a basket control assembly coupled to the basket, comprising a tubular sheath adapted to penetrate into the body for reaching the object, and a manipulator for manipulating the basket via said pushing element for extracting the object from the body,
wherein the assembly is configured for retracting the basket within the sheath and protracting the basket therefrom for opening the basket.
23. The device of claim 12 wherein the filaments are made of nonmetallic [ non-metallic ] material.
27. A retrieval basket for entrapping and retaining an object located in a body for its extraction therefrom, the basket comprising [ :] a structure composed of a proximal portion and a distal portion, the proximal portion extending from a proximal end of the basket, and the distal portion extending from a distal end of the basket, and the proximal and distal portions being joined together at a location between the proximal and distal ends, said basket being constituted by a plurality of filaments extending from the proximal end towards the distal end and being in the form of loops, wherein at least a part of the loops are interlaced so as to define a net at least in the distal portion, said net presenting a plurality of holes dimensioned to cause said net to retain objects entrapped in said basket for extraction from the body, said filaments are made of a material that imparts structural rigidity and dilatation abilities to the basket when opened, and said filaments have portions that are bound [ twisted ] together to define a plurality of branches [ strands ] over the proximal portion for coupling to a pushing element at said proximal end ; [ ,]
wherein at least a part of the filaments, which originate from the proximal end, also arrive at the proximal end after interlacing,
[ wherein each strand ramifies at least at two branching points located between the proximal end and the distal end into the loops having various shapes and sizes,
wherein at least two filaments that emerge from a first branching point of said at least at two branching points each extend towards the distal end and arrive at neighboring branching points to form two different loops, and
wherein at least one filament that emerges from a second branching point of said at least at two branching points extends towards the distal end and returns to the same branching point after forming a single loop that is interlaced with at least one other loop of another strand at the distal end of the basket, and]
wherein the structure is fabricated from a single length of wire.
28. A surgical device for removing a foreign object from a body, [ the surgical device ] comprising:
the retrieval basket according to claim 27 [ 36] ; and
a basket control assembly coupled to the basket, comprising a tubular sheath adapted to penetrate into the body for reaching the object, and a manipulator for manipulating the basket via said pushing element for extracting the object from the body, wherein the assembly is configured for retracting the basket within the sheath and protracting the basket therefrom for opening the basket.
29. A retrieval basket for entrapping and retaining an object located in a body for its extraction therefrom, the basket comprising [ :] a structure composed of a proximal portion and a distal portion, the proximal portion extending from a proximal end of the basket, and the distal portion extending from a distal end of the basket, and the proximal and distal portions being joined together at a location between the proximal and distal ends, said basket being constituted by a plurality of filaments extending from the proximal end towards the distal end and being in the form of loops, wherein at least a part of the loops are interlaced so as to define a net at least in the distal portion, said net presenting a plurality of holes dimensioned to cause said net to retain objects entrapped in said basket for extraction from the body, said filaments are made of a material that imparts structural rigidity and dilatation abilities to the basket when opened, and said filaments have portions that are bound [ twisted ] together to define a plurality of branches [ strands ] over the proximal portion for coupling to a pushing element at said proximal end ; [ ,] wherein at least a part of the filaments, which originate from the proximal end, also arrive at the proximal end after interlacing, wherein the filaments in a region of the structure at the proximal end form at least two branches [ strands ] each including a plurality of the filaments [ ,
wherein each strand ramifies at least at two branching points located between the proximal end and the distal end into the loops having various shapes and sizes,
wherein at least two filaments that emerge from a first branching point of said at least at two branching points each extend towards the distal end and arrive at neighboring branching points to form two different loops, and
wherein at least one filament that emerges from a second branching point of said at least at two branching points extends towards the distal end and returns to the same branching point after forming a single loop that is interlaced with at least one other loop of another strand at the distal end of the basket] .
31. A surgical device for removing a foreign object from a body, [ the surgical device ] comprising:
the retrieval basket according to claim 29 [ 37] ; and
a basket control assembly coupled to the basket, comprising a tubular sheath adapted to penetrate into the body for reaching the object, and a manipulator for manipulating the basket via said pushing element for extracting the object from the body, wherein the assembly is configured for retracting the basket within the sheath and protracting the basket therefrom for opening the basket.
32. A retrieval basket for entrapping and retaining an object located in a body for its extraction therefrom, the basket comprising [ : ] a structure having a proximal end and a distal end and constituted by a plurality of filaments extending from the proximal end towards the distal end and being in the form of loops, wherein at least a part of the loops are interlaced so as to define a net at least in the vicinity of the distal end, said net presenting a plurality of holes dimensioned to cause said net to retain objects entrapped in said basket for extraction from the body, said filaments are made of a material that imparts structural rigidity and dilatation abilities to the basket when opened, and said filaments have portions that are bound [ twisted ] together to define at least one branch [ strand ] for coupling to a pushing element at said proximal end, wherein the filaments in a region of the structure at [ between ] the proximal end [ and the distal end ] form a plurality of branches, [ strands, ] and one of the branches [ strands ] is [ in the form of a loop and is ] common for [ to ] all the filaments.
33. The basket of claim 32 wherein said structure has an asymmetrical [ spoon-like ] shape.
34. A surgical device for removing a foreign object from a body, [ the surgical device ] comprising:
the retrieval basket of claim 32; and
a basket control assembly coupled to the basket, comprising a tubular sheath adapted to penetrate into the body for reaching the object, and a manipulator for manipulating the basket via said pushing element for extracting the object from the body, wherein the assembly is configured for retracting the basket within the sheath and protracting the basket therefrom for opening the basket.
[ 35. The basket of claim 1, wherein the filaments of the strands at the proximal end are coupled to the pushing element configured as a separate unit via a connector.]
[ 36. The basket of claim 1, wherein the filaments of the strands are twisted together to form the pushing element extending at the proximal end outwardly.]
[ 37. The basket of claim 1, wherein the strands are formed from entwined wire filaments.]
[ 38. The basket of claim 1, wherein the distal end of the structure is atraumatic.]
[ 39. The basket of claim 27, wherein the filaments of the strands at the proximal end are coupled to the pushing element configured as a separate unit via a connector.]
[ 40. The basket of claim 27, wherein the filaments of the strands are twisted together to form the pushing element extending at the proximal end outwardly.]
[ 41. The basket of claim 27, wherein the strands are formed from entwined wire filaments.]
[ 42. The basket of claim 27, wherein the distal end of the structure is atraumatic.]
[ 43. The basket of claim 29, wherein the filaments of the strands at the proximal end are coupled to the pushing element configured as a separate unit via a connector.]
[ 44. The basket of claim 29, wherein the filaments of the strands are twisted together to form the pushing element extending at the proximal end outwardly.]
[ 45. The basket of claim 29, wherein the strands are formed from entwined wire filaments.]
[ 46. The basket of claim 29, wherein the distal end of the structure is atraumatic.]