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Atraumatic medical retrieval device

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Publication number
US20060161174A1
US20060161174A1 US11312532 US31253205A US2006161174A1 US 20060161174 A1 US20060161174 A1 US 20060161174A1 US 11312532 US11312532 US 11312532 US 31253205 A US31253205 A US 31253205A US 2006161174 A1 US2006161174 A1 US 2006161174A1
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Prior art keywords
basket
fig
end
distal
material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US11312532
Inventor
James Bates
Like Que
James Riley
James Teague
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Boston Scientific Scimed Inc
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Boston Scientific Scimed Inc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A61B2017/2212Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining

Abstract

Baskets with atraumatic distal tips allow the capture of material from difficult-to-reach areas of the body, while reducing the risk of tissue damage.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This application is based on and claims priority to provisional U.S. patent application Ser. No. 60/082,810 which was filed on Apr. 23, 1998, and U.S. provisional patent application Ser. No. 60/105,448 which was filed on Oct. 23, 1998.
  • TECHNICAL FIELD
  • [0002]
    The invention relates generally to medical devices for retrieving material from within a body. More particularly, the invention relates to medical retrieval baskets that have atraumatic distal ends that are contoured or tipless both to minimize the chances of damage to tissue during use and to enhance the ability of the basket to capture material (e.g., stones) disposed or lodged in “pockets” or other areas that are difficult to access in the body.
  • BACKGROUND INFORMATION
  • [0003]
    Known stone retrieval devices typically have baskets that are constructed by joining multiple legs together at a base of the basket and at a distal end or tip of the basket such that a “cage” is formed. At the distal tip, the individual legs are joined by soldering, adhesives, etc. such that a protruding tip results. This protrusion or outward projection at the distal end of the basket can poke tissue and cause tissue trauma. In general, the tips or ends of known baskets protrude outward and thus can cause damage by poking or piercing tissue. Also, the protruding tips of known baskets generally do not permit access to or intimate contact with certain areas within the body such as “pockets,” and thus stones residing in such areas are difficult or impossible to retrieve with known baskets.
  • SUMMARY OF THE INVENTION
  • [0004]
    It is an object of the invention to provide a medical retrieval basket that does not have a substantially protruding distal basket end or basket tip. That is, a basket according to the invention is atraumatic and does not have any significant distal protrusion or outward projection that can poke tissue, pierce tissue, or otherwise cause trauma to tissue.
  • [0005]
    It is another object of the invention to provide a medical retrieval basket that permits access to and/or intimate contact with certain areas within the body such as “pockets” where material to be retrieved (e.g., stones) might reside or be lodged, impacted, or embedded. A tipless or contoured tip basket arrangement can access these areas and retrieve material from those areas whereas a conventional basket with a traumatic tip would not be able to do so because of the traumatic protruding tip that prevents intimate contact between the distal end of the basket and body tissue.
  • [0006]
    It is yet another object of the invention to provide a method of using such baskets to retrieve material from within a body. The material can be biological or foreign matter. The material can be, for example, urological stones or any of a variety of other types of material found in the body.
  • [0007]
    A basket according to one aspect of the invention is tipless and thus lacks a protruding end or tip. At least a distal end portion of the basket can be formed from a single piece of material to achieve the desired tipless feature. The one-piece construction of at least the distal end portion of the tipless basket can be achieved by removing the desired profile from a flat sheet of construction material or by using an injection mold process. With this type of single unit, one-piece construction, the basket legs require joining only at the base of the basket where the basket is attached to a cable, coil, wire, etc., that connects the basket to a proximal handle mechanism. This single unit feature of baskets according to the invention can be achieved in a variety of ways including stamping, photoetching, laser cutting, and injection molding. Also, various materials can be used to form the tipless one-piece unit or the entire basket such as metal, polymers, ceramics, powdered metals, thermal plastic composites, etc. Combinations of these or other materials also may be used to manufacture a basket according to the invention
  • [0008]
    The invention generally relates to a medical retrieval device that comprises a sheath, a handle, and an atraumatic basket. The sheath has a proximal end and a distal end. The handle is located at the proximal end of the sheath. The basket can remove material from a body, and it has a collapsed position where the basket is enclosed within the sheath and an expanded position where the basket extends from the distal end of the sheath. The basket can have three or more legs (e.g., four, five, or six legs). At least a distal end portion of the basket is substantially tipless and defined by a shape or profile which comprises a single continuous unit. In another embodiment of the invention, the atraumatic basket is formed by a plurality of wires, each wire forming a loop with a small protrusion at the very distal end of the basket.
  • [0009]
    In accordance with one aspect of the invention, the atraumatic basket has a distal end portion defined by a single continuous, one-piece unit. The atraumatic basket can include the following features. The distal end portion of the atraumatic basket can be non-perforated or perforated to, for example, allow a guidewire or lithotripsy device (laser) to extend through the sheath and through the end of the basket. The shape of the distal end portion of the atraumatic basket can be formed from, for example, metal, metal alloys, a ceramic material, a powdered metal, or a polymer. The basket legs, each of which has an inner surface and an outer surface, can have at least a portion of their inner surfaces coated with an anti-slip material, textured, or roughened in some manner to enhance the ability of the basket to grip and hold material. The atraumatic basket can be made by one-piece construction forming, as a single continuous one-piece unit, a shape having three or more legs, for example, a y-shape, x-shape, t-shape or star-shape, and then bending the legs of the shape to form at least a distal portion of a three-dimensional basket structure that is useful for retrieving objects. Other shapes such as a double loop may be used to form the distal portion of the basket. Shapes other than the ones described here also may be used to form the distal portion of the basket. The shape can be stamped, etched, and/or cut from a continuous sheet of material. Alternatively, the shape could be achieved by injection molding.
  • [0010]
    In another embodiment of an atraumatic wire basket, the distal ends of the basket wires insert into an inverted cap at the distal basket tip.
  • [0011]
    Another aspect of the invention relates to a method for manufacturing a basket for a medical retrieval device comprising the steps of forming, as a single continuous unit, a shape having three or more legs and bending the legs of the shape to form at least a portion of a three-dimensional basket structure for retrieving objects. The shape can be stamped, etched or cut from a continuous sheet of material. The shape can also be injection molded.
  • [0012]
    Yet another aspect of the invention features a method for retrieving material from a body including the steps of inserting an extractor into a body, the extractor including a basket having three or more legs and wherein at least a distal end portion of the basket is defined by a shape which comprises a single continuous unit, capturing the material within the basket and withdrawing the extractor from the body to remove the material from the body.
  • [0013]
    The foregoing and other objects, aspects, features, and advantages of the invention will become more apparent from the following description and from the claims.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0014]
    In the drawings, like reference characters generally refer to the same parts throughout the different views. Also, the drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention.
  • [0015]
    FIG. 1A illustrates a top view of an X-profile embodiment of a one-piece construction of at least a distal end portion of a medical retrieval basket removed from a single piece of substantially flat material according to the invention.
  • [0016]
    FIG. 1B illustrates a side view of an embodiment according to the invention of a three-dimensional atraumatic tipless basket formed by bending and shaping the legs of the X-profile illustrated in FIG. 1A
  • [0017]
    FIG. 1C illustrates a side view of an embodiment according to the invention of the X-profile illustrated in FIG. 1A.
  • [0018]
    FIG. 1D illustrates an embodiment according to the invention of an end view of the X-profile illustrated in FIG. 1A.
  • [0019]
    FIG. 1E illustrates one embodiment of a medical retrieval device with an atraumatic basket according to the invention with the basket in an expanded position.
  • [0020]
    FIG. 1F illustrates one embodiment of a medical retrieval device with an atraumatic basket according to the invention with the basket in a collapsed position.
  • [0021]
    FIG. 1G illustrates a side view of one embodiment of the invention of a distal end portion of a basket formed by bending and shaping the legs of the X-profile illustrated in FIG. 1A.
  • [0022]
    FIG. 1H illustrates an embodiment of the medical retrieval device according to the invention with a lithotriptic device extending into the basket lumen;
  • [0023]
    FIG. 2A illustrates a top view of one embodiment of an X-profile, one-piece construction of a distal end portion of the basket of the invention.
  • [0024]
    FIG. 2B illustrates details of the center of the X-profile illustrated in FIG. 2A.
  • [0025]
    FIG. 2C illustrates details of the end of one leg of the X-profile illustrated in FIG. 2A.
  • [0026]
    FIG. 2D illustrates embodiments of a cross-section of one of the legs illustrated in FIG. 2A.
  • [0027]
    FIG. 2E illustrates another embodiment of a cross-section of one of the legs illustrated in FIG. 2A.
  • [0028]
    FIG. 2F illustrates one embodiment of a modification of the end of a basket leg;
  • [0029]
    FIG. 3A illustrates a top view of a parachute-shaped profile embodiment of a one-piece construction of a medical retrieval basket removed from a single piece of substantially flat material according to the invention
  • [0030]
    FIG. 3B illustrates a side view of an embodiment according to the invention of a three-dimensional atraumatic tipless basket formed by bending and shaping the profile of the parachute shape illustrated in FIG. 3A.
  • [0031]
    FIG. 3C illustrates the basket of FIG. 3B enclosed within a sheath.
  • [0032]
    FIG. 3D illustrates the basket of FIG. 3B extended from the distal end of the sheath.
  • [0033]
    FIG. 4A illustrates a top view of a web-shaped profile embodiment of a one-piece construction of at least a distal end portion of a medical retrieval basket removed from a single piece of substantially flat material according to the invention.
  • [0034]
    FIG. 4B illustrates a side view of an embodiment according to the invention of a three-dimensional atraumatic basket formed by bending and shaping the profile of the web-shaped profile illustrated in FIG. 4A.
  • [0035]
    FIG. 5A illustrates a top view of a double loop-shaped profile embodiment of a one-piece construction of at least a distal end portion of a medical retrieval basket removed from a single piece of substantially flat material according to the invention.
  • [0036]
    FIG. 5B illustrates a side view of an embodiment according to the invention of a three-dimensional atraumatic tipless basket formed by bending and shaping the profile of the double-loop shaped profile illustrated in FIG. 5A.
  • [0037]
    FIG. 6A is a top view of a stamped profile that can be formed into a basket or a portion of a basket by bending the legs of the shape, in accordance with the invention.
  • [0038]
    FIG. 6B is an embodiment according to the invention of a three-dimensional tipless basket with a distal end portion constructed from the profile illustrated in FIG. 6A.
  • [0039]
    FIG. 7A is an embodiment according to the invention of a three-dimensional tipless basket structure formed from a single continuous piece of material, for example, the stamped shape illustrated in FIG. 6A.
  • [0040]
    FIG. 7B is the distal end profile illustrated in FIG. 6A including a textured inner surface of one leg.
  • [0041]
    FIG. 8 is a top view of an embodiment according to the invention of another stamped shape that can be formed into a basket or a portion of a basket by bending the legs of the shape, according to the invention.
  • [0042]
    FIG. 9 illustrates an embodiment according to the invention of a basket with an atraumatic spot-welded tip.
  • [0043]
    FIG. 10 illustrates an embodiment according to the invention of a basket with an atraumatic looped tip.
  • [0044]
    FIG. 11A illustrates a loop of a basket according to the invention
  • [0045]
    FIG. 11B illustrates an embodiment of a three-dimensional basket according to the invention formed from a plurality of basket loops illustrated in FIG. 11A
  • [0046]
    FIG. 11C illustrates a loop of a basket according to the invention having an atraumatic protrusion with a radius at the distal end.
  • [0047]
    FIG. 11D illustrates an embodiment of a three-dimensional basket according to the invention formed from a plurality of basket loops illustrated in FIG. 11C.
  • [0048]
    FIG. 12A illustrates another embodiment of the basket loop having multiple shoulders illustrated in FIG. 11C.
  • [0049]
    FIG. 12B illustrates yet another embodiment of the basket loop illustrated in FIG. 12A.
  • [0050]
    FIG. 12C illustrates an embodiment of a three-dimensional basket formed from basket loops having multiple shoulders illustrated in 12A.
  • [0051]
    FIG. 12D illustrates an embodiment of a three-dimensional basket formed from basket loops illustrated in FIG. 12B.
  • [0052]
    FIG. 13A illustrates an inverted cap embodiment of a tipless basket.
  • [0053]
    FIG. 13B illustrates the distal end portion of the inverted cap, tipless basket illustrated in FIG. 13A before the ends of the basket legs are affixed together at the proximal end of the basket.
  • [0054]
    FIG. 13C illustrates the details of the inverted cap illustrated in FIGS. 13A and 13B.
  • [0055]
    FIG. 14 illustrates a metal ring inserted into a polyimide sheath before the metal ring is ground flush with the end of the polyimide sheath.
  • DESCRIPTION
  • [0056]
    All of the following embodiments of the invention generally have at least one thing in common, a basket of a medical retrieval device having a substantially atraumatic tip according to the invention. The basket 10, shown by way of example in FIG. 1F, is the type that can be collapsed within a sheath 12 for entry into the body. A medical device or extractor that includes the basket 10 of the invention also includes the sheath 12 and a proximal handle 8. The handle 8, sheath 12, and basket 10 illustrated in FIGS. 1E and 1F are not shown in their correct size or proportion to each other. The size of the entire sheath is dimensioned to fit the requirements of its application in the body. For example, for urological applications, the size of the device is typically 1.7-8.0 Fr. The sheath 12 has at least one lumen 14 therein, may be made from a single material, and extends from the handle 8 to a distal sheath end 16. An elongated member such as a cable, coil, shaft, guidewire or mandril wire 18 extends within the lumen 14 from an actuating mechanism 4 at the device handle 8 to the base 20 of the basket 10, where the cable 18 is attached to the basket base 20. Operation of the actuating mechanism 4 by an operator causes the basket 10 to move in and out of the sheath 12 between a collapsed position within the sheath 12 as illustrated in FIG. 1F to an extended position outside of the sheath 12 where the basket 10 is open/expanded and extending beyond the distal end of the sheath 16 as shown in FIG. 1E. Alternatively, the mechanism 4 can cause movement of the sheath 12 to advance the sheath 12 over the stationary basket 10 and cable 18 combination, to thereby collapse the basket 10 within the sheath 12, and the mechanism 4 can slide the moveable sheath 12 back to expose the stationary basket 10 and allow it to open/expand. In general, both types of basket/sheath movement configurations and related handle mechanisms are known, and can be seen in existing product designs available from, for example, Boston Scientific Corporation (Natick, Mass.). With the basket collapsed within the sheath 12 as shown in FIG. 1F, the sheath 12 can be inserted into the body by an operator to a site in the body where the material to be retrieved is located (e.g., a stone in the ureter). By putting the basket 10 into its open/expanded position, as illustrated in FIG. 1E, the basket 10 dilates the body tract in which it has been placed and can be manipulated by the operator to entrap or capture material within the basket 10. The basket 10 and/or the sheath 12 can then be moved to cause the legs 11 a, 11 b, 11 c, 11 d of the basket 10 to close around the material and capture it. The captured material is then withdrawn from the body along with the sheath and the basket that is holding the material.
  • [0057]
    In one aspect, according to the invention, a basket 10 of a device for retrieving biological or foreign material from a body has a plurality of legs, for example, as shown in FIG. 1B, four legs 11 a, 11 b, 11 c, 11 d. An end-on view of the basket 10 in FIG. 1D illustrates a substantially tipless or atraumatic distal end 100. A small, insubstantial protrusion or depression may remain at the distal tip as a result of the manufacturing process. Such features on the basket tip do not poke, tear, pierce, perforate, bruise or otherwise inflict injury or cause trauma to the tissue and may enhance basket performance. In one embodiment, for example, the legs 11 a, 11 b, 11 c, 11 d and the atraumatic basket 10 can be cut, etched, stamped or otherwise removed as a single shape or profile from a substantially flat piece of material 101 as illustrated in FIG. 1A. In another embodiment, referring to FIGS. 1E, 1G and 6B, just the distal end portion 5 of the basket 10 is removed as a single shape or profile from a single piece of substantially flat material. Alternatively, the basket 10 or distal end portion 5 can be injection molded into the desired shape by, for example, plastic injection molding, metal-injection-molding (MIM) or by compression of metal powders. As illustrated in FIG. 1A and FIG. 1C, the starting profile for the basket 10 or the basket end portion 5 can be an X-profile or X-shape. After removal of the X-profile from the flat material, the three-dimensional basket 10 or distal end portion 5 of the basket 10 can be formed by bending and shaping the legs of an X-profile. The starting profile may be asymmetrical. For example, in other embodiments, the starting profile of the basket 10 or the distal end portion 5 can be y-shaped, t-shaped or star-shaped.
  • [0058]
    With continued reference to FIGS. 1B and 1D, the distal end 100 of the basket 10 is uniform, contoured, and substantially without any protruding surface features. That is, in accordance with the invention, the distal end 100 of the basket 10 is substantially devoid of knobs, protrusions, fasteners, or outward projections. The distal end 100 of the basket 10 may be perforated 20 as illustrated in FIG. 1G to permit a guidewire (not shown) to extend through the sheath 12 and out the end of the basket 10 through the perforation 20. Referring to FIG. 1H, alternatively, a ram-rod, laser or other lithotriptic device 9 is longitudinally disposed in a channel 200 of sheath 12. Channel 200 extends through the proximal end 20 of the basket 10. In operation, a stone 50 is captured in the lumen of the basket 10. The lithotriptic device is advanced beyond the proximal basket end into the basket until the lithotriptic device approaches the stone 50. The stone 50 is then fragmented by lithotripsy. The fragmented stones are removed from the body while entrapped within the basket 10.
  • [0059]
    No adhesive or any other attachment material or device is used at the distal end 100 of the basket 10 to hold the legs together as at least the distal ends of the legs are formed by a profile including distal leg portions extracted from a single piece of sheet-like material as illustrated in FIGS. 1A and 1C to form a tipless atraumatic three-dimensional basket as illustrated in FIG. 1B. The distal end 100 of the basket 10 is substantially atraumatic in that it has no substantial outward projections or protrusions that might cause injury or trauma to tissue and/or that might present an impediment to contacting the distal end 100 of the basket 10 directly and intimately with tissue.
  • [0060]
    In one embodiment, referring to FIGS. 2A-2E, a medical device of the invention includes a plurality of legs forming the basket 10. The legs can have various cross-sectional shapes, for example, as shown in FIGS. 2D and 2E. Other cross-sectional shapes for the legs of the basket 10 include, but are not limited to, a D-shape, a V-shape, a B-shape, rectangular, and cylindrical (not shown). Typically, the length of the legs 11 a, 11 b, 11 c, 11 d is about 0.5 to 3.5 inches, for example, 1.1 to 1.5 inches, the width of the leg is about 0.005 inches to 0.015 inches and the thickness of the legs is 0.028 inches to 0.045 inches. The ends 1 of the basket legs 11 may be modified by narrowing, enlarging or grooving the end for example, as shown in FIG. 2F, to ease assembly and/or strengthen the basket when the ends of the basket legs are brought together.
  • [0061]
    Referring to FIGS. 2A-2C and 2E, a typical basket end portion may have the following features. The basket end portion can have four legs, the legs being approximately 90° apart. The leg length d1 is 1.1 inches to 1.25 inches, leg width d2 is 0.010 inches to 0.012 inches, leg width d3 is 0.006 inches to 0.008 inches, and leg thickness d4 is 0.005±0.0003 to 0.0032±0.003 inches. At the intersection 121 of the four legs, the four corners have a slight radius as shown in FIG. 2B. The ends 1 of the legs as illustrated in FIG. 2C have a fill radius. Notches or cut-outs 123 are located 0.100 inches (d6) from the end 1 of the leg and have a radius of 0.003-0.004 inches with a minimum distance (d5) of 0.004 inches between the apex of the notches. The “X” profile illustrated in FIG. 2A may be removed from a flat annealed, superelastic, nickel-titanium sheet having a pickled surface and active Af of 15±5° C.
  • [0062]
    The basket 10 or distal end 100 of the basket 10 can be formed from various materials such as stainless steel, metal alloys, superelastic materials, shape memory materials, powdered metals, ceramics, thermal plastic composites, ceramic composites, polymers, etc. Also, combinations of these and other materials can be used.
  • [0063]
    The atraumatic basket 10 can assume shapes more complex than one with three or more legs running parallel and longitudinally from the distal end of the basket to the basket base. For example, referring to FIG. 3A, a single-unit hourglass profile 22 can be removed from a single piece of sheet-like material 101 by stamping, etching, or cutting, for example, according to the invention. A three-dimensional basket 10 can be created by folding the single-unit hourglass profile, as illustrated by the arrows in FIG. 3A, into a substantially parachute-shaped configuration as shown in FIG. 3B. Heat treatment, cold-forming, or other shaping processes using a ball-shaped die is then performed on the parachute-shaped configuration to shape the profile into a three-dimensional basket 10. The distal end 100 of this basket 10 is tipless and atraumatic. The proximal end 24 of basket 10 can be joined to a cable 18 within a sheath 12 as illustrated in FIG. 3C. The basket 10 is moveable relative to the sheath 12 from a collapsed basket position, shown in FIG. 3C to an open basket position shown in FIG. 3D.
  • [0064]
    In another embodiment, the basket can be made by extracting a single unit web-shaped profile 26, as illustrated in FIG. 4A, from a single piece of sheet-like material. The web-profile is removed from a single piece of sheet-like material by stamping etching or cutting, for example. The web-profile is subsequently shaped and molded around a ball shape by heat treatment, cold-forming, or other shaping processes to achieve a basket 10 as illustrated in FIG. 4B. The distal end 100 of this basket 10 is atraumatic and substantially tipless. The proximal end 24 of basket 10 can be joined to a cable (not shown) and the basket can be moved within the lumen of a sheath relative to the sheath in a manner similar to the basket illustrated in FIGS. 3C and 3D.
  • [0065]
    Referring to FIG. 5, another embodiment of the basket can be made by extracting a single unit double-loop profile 28 from a single piece of material by stamping, etching or cutting, for example. The double-loop profile 28 is shaped and molded around a ball shape by heat treatment, cold-formed, or by other shaping processes, to form the basket 10 illustrated in FIG. 5B. The distal end 100 of the basket 10 is substantially tipless and atraumatic. The proximal end 24 of the basket can be joined to a cable (not shown) and the basket can be moved within the lumen of a sheath, relative to the sheath in a manner similar to the basket illustrated in FIGS. 3C and 3D.
  • [0066]
    To manufacture a basket according to the invention, a single piece of flat material, such as a sheet of metal, or a single piece of material contoured to conform to the basket radius is used to form the distal basket tip. When starting with a single piece of flat material, at least the distal basket tip is defined by a shape or profile that is removed from the single piece of construction material. The profile can be removed from the material by a variety of methods including, for example, stamping, etching, photoetching, or laser cutting as illustrated in FIG. 1A or 3A. The profile removed from the single piece of material is then shaped by heat treatment, cold-forming process or by other processes known in the art to form at least a distal end portion 5 as illustrated, for example, in FIGS. 1G and 6B having an atraumatic distal tip, or a three-dimensional basket structure, for example, as illustrated in FIGS. 1B, 3B, 4B and 5B having an atraumatic distal tip. Alternatively, the basket legs may be rotated or twisted slightly around their longitudinal axis to achieve a helical basket, for example, as shown in FIG. 1D.
  • [0067]
    A basket according to the invention also can be formed by injection molding the distal basket portion or desired basket profile. Alternatively, with a metal or plastic injection molding process, the three-dimensional distal basket portion or basket design can be injected into a three-dimensional mold thereby obviating the step of shaping the distal basket portion or basket structure following removal of the profile from a single piece of construction material by molding into a final shape.
  • [0068]
    The basket 10 and basket designs described below are joined at the basket proximal end to the distal end of the elongated member 18 to form a subassembly. The basket/elongated member subassembly is inserted into the sheath 12 and joined to the handle 8 to form the medical retrieval device according to the invention
  • [0069]
    The “X” profile that is shown in FIG. 6A, for example, can be replaced by any other shape that lends itself to clinical efficiency and manufacturability and that results in a substantially tipless atraumatic basket. The “X” or other profiles can have a small, atraumatic protrusion or depression at the distal basket tip. Also, the “X” profile or other profile, can be shaped to make a distal end portion 5 of the basket 10, and leg extensions 3 a, 3 b, 3 c, 3 d can be added to end-sections 1 a, 1 b, 1 c, 1 d of legs 11 a, 11 b, 11 c, 11 d to form all of or a portion of the basket legs 11 a, 11 b, 11 c, 11 d as shown in FIG. 6B. Alternatively, the end-sections 1 a, 1 b, 1 c, 1 d of the basket legs 11 a, 11 b, 11 c, 11 d of the “X” profile or any other profile can be secured together at the base 20 of the basket 10 illustrated in FIG. 7A.
  • [0070]
    All or a portion of the inner surface (side toward basket center) of one or more of the basket legs can be treated to enhance the ability of the basket to grasp and hold material to be retrieved. For example, an anti-slip coating, such as a rubberized or plastic coating can be applied to at least a portion of the inner surface of at least one of the basket legs as illustrated on the inner surface 15 of leg 11 b in FIG. 7A. The coating can be applied directly to the single piece of sheet-like material from which the basket profile is extracted before basket formation or to the inner surface of the basket legs after basket formation. An enhanced grasping and/or fragmentation capability also can be achieved by adding texture to at least the inner surface of at least one of the basket legs by, for example, creating serrations, teeth, or points on the inner surface(s). This can be achieved by, for example, etching, pitting, bending, stamping or machining the texture/roughness into the inner surface(s) by application of these methods directly to the single piece of sheet-like material from which the basket or basket distal end shape is extracted before basket formation, or directly to the inner surface of the basket legs after basket formation.
  • [0071]
    Referring to FIGS. 6A, 7B, and 8, according to one embodiment of the invention, a profile stamped from a single piece of sheet-like material has end-sections 1 that are brought together at a basket base 20 to form a three-dimensional basket 10. Alternatively, as illustrated in FIGS. 6A and 6B, just the distal end portion 5 of the basket can be formed from the single piece of construction material with the legs of the basket extending from the end-sections 1 a, 1 b, 1 c, 1 d of the profile and then drawing the end-sections 1 a, 1 b, 1 c, 1 d down and bringing the end-sections together at the basket base 20 to form the basket 10. As shown in FIG. 8, it is possible to have more than three or four basket legs by forming the basket distal end from, for example, an eight-leg 11 a, 11 b, 11 c, 11 d, 11 e, 11 f, 11 g, 11 h star-shape profile 28 extracted as a single unit from a single piece of sheet-like material. The shape forming the distal end portion of the basket may be asymmetrical.
  • [0072]
    Baskets that are atraumatic and tipless may also have each leg 11 a, 11 b, 11 c, 11 d joined at the distal end 100 of the basket in a variety of ways such as by spot welding the legs at the distal end 100 as illustrated in FIG. 9 or by looping two or more wires 17 a, 17 b together at the distal end 100 as illustrated in FIG. 10. The wires are looped together by forming a loop in a mid-portion of the first wire 17 a. Second wire 17 b is passed through the loop of the first wire 17 a. The second wire 17 b is looped within and is held by the loop of the first wire 17 a.
  • [0073]
    Referring to FIGS. 11A and 11B, in another embodiment of the invention, a tipless end 130 of the atraumatic basket 10 is constructed by using single wires to form loops 120 a, 120 b having legs 11 a, 11 b, 11 c, 11 d extending from the apex 130 a, 130 b of the loops 120 a and 120 b, respectively, the apex 130 a, 130 b positioned at the basket distal end 100. A plurality of pre-formed wire loops is included in a three-dimensional, atraumatic basket Wire loops may be formed from plastics, superelastic materials, stainless steel, shape memory metals, ceramic composites, other composites or other materials and may have any of a variety of cross sectional shapes such as D-shape, B-shape, U-shape, round, half-round, oval, rectangular or ribbon-like. In this embodiment of an atraumatic wire basket, two wire loops 120 a, 120 b, for example, may be used to form a basket with four legs 11 a, 11 b, 11 c, 11 d as shown in FIG. 11A, and three wire loops 120 a, 120 b, 120 c may be used to form a basket with six legs 11 a, 11 b, 11 c, 11 d, 11 e, 11 f as shown in FIG. 11B. Additional wire loops may be used to form a basket with more than the four or six legs shown. The apex 130 of each wire loop 120 intersects the apex 130 of the other wire loops 120 of the basket 10 at the basket distal end 100. The wire loops 120 at the basket distal end 100 are free to slide by one another, i.e., they are not affixed, fused, soldered, welded, glued, joined, secured or attached to one another. The advantages of this configuration of the basket is that the basket end 100 is atraumatic and provides flexibility thereby enhancing the ease by which stones are captured. The two end-sections 1, 1′ of each wire loop are brought together at the basket base 20 and held in place by welding, soldering, ligating, gluing, crimping or any other means known in the art. In one embodiment, the end-sections 1, 1′ of the wire loops are affixed (not shown) to a cable, coil, shaft, mandril wire or guidewire 18 that runs longitudinally in a sheath 12 as shown in FIG. 1E and FIG. 1F.
  • [0074]
    Referring to FIGS. 11C and 11D, the tipless end 100 of the atraumatic basket can also be constructed by using single pre-formed wires to form modified loops 120, each modified loop having a pair of legs 11 a, 11 b extending from the apex 130 of the loop 120, the apex 130 positioned at the basket distal end 100. The apex 130 of a pre-formed wire loop 120 forming pairs of basket legs is modified to stabilize the basket tip. For example, as illustrated in FIG. 11C, the apex 130 of a wire loop 120 is modified by a protrusion 140 with a radius, such as a semi-circular protrusion. A basket may be formed by a plurality of wire loops 120 a, 120 b, each wire loop having a small protrusion 140 a, 140 b with a radius, as illustrated in FIG. 11D. Each semi-circular protrusion on the basket wire has a convex surface 142 and a concave surface 144 as illustrated in FIG. 11C. In this embodiment, the convex surface 142 of the semi-circular protrusion 140 of wire loop 120 a meets the concave surface 144 of the semi-circular protrusion 140 of the outer wire loop 120 b where the wires of the basket cross one another at the basket distal tip 100 as illustrated in FIG. 11D. At the apex 130 where the loops cross one another at the distal end of the basket, the wires forming the loops are not adhered, affixed, fused, soldered, welded, glued or joined to one another. Typically, two or more wires (i.e., loops), each with a semi-circular protrusion, are used to form an atraumatic wire basket.
  • [0075]
    Wire loops 120 may be formed from superelastic materials, stainless steel, shape memory metals, ceramic composites, other composites, or other materials and may have any of a variety of cross sectional shapes such as D-shape, B-shape, U-shape, round, half-round, oval, rectangular, or ribbon-like. In this embodiment of an atraumatic wire basket, for example, two wire loops 120 a, 120 b may be used to form a basket with four legs as shown in FIG. 11C, or three wire loops may be used to form a basket with six legs (not shown), and so on. Additional wire loops may be used to form a basket with more than the four or six legs shown. Referring to FIG. 11C, the two end-sections 1, 1′ of each wire loop are brought together at the basket base 20 and held in place by welding, soldering, ligating, gluing, crimping or any other means known in the art. The end-sections 1, 1′ of the wire loops can be affixed as shown in FIG. 11D to a cable, coil, shaft, mandril wire or guidewire 18 that runs longitudinally in a sheath 12 as shown in FIG. 1E and FIG. 1F. A channel 200 may run through the sheath 12 and the proximal end 20 of the basket 10 to accommodate a ram-rod, laser or other lithotriptic device 9 as shown in FIG. 1H and described earlier.
  • [0076]
    A basket of the invention having two or more wire loops 120 a, 120 b each with semi-circular protrusions 140 at the apex 130 of the loops 120 a, 120 b, has enhanced basket stability and dilatative strength without substantially compromising basket flexibility. In this embodiment of the invention (FIGS. 11C and 11D), the wires are unlikely to slide by one another at the distal tip. The semi-circular protrusions also help to reduce the stress on the basket legs while closing the basket.
  • [0077]
    The legs of an atraumatic wire basket 10 illustrated in FIGS. 11A-11D and FIGS. 12A-12D may be gently curved or may have a plurality of angular bends. In one embodiment, illustrated in FIG. 12A, each of the legs 11 a, 11 b of a loop 120 a have five angular bends, 17 a, 17 a′, 17 a″, 17 a′″, 17 a″″ forming at least two shoulders 15′ and 15″ on each leg 11 a, 11 b of the wire loop 120. A three-dimensional basket shape formed by two loops 120 a, 120 b of the type illustrated in FIG. 12A is shown in FIG. 12B. FIG. 12A illustrates a wire loop 120 configuration where all of the angles 17 of the loop are obtuse. A three-dimensional basket shape formed by two loops 120 a, 120 b of the type illustrated in FIG. 12A is shown in FIG. 12C. An infinite number of obtuse angles in both legs of the wire loop results in a smoothly curved loop as illustrated in FIG. 12B. A largely oval or round, atraumatic three-dimensional basket shape 10 formed by two basket loops 120 a, 120 b of the type illustrated in FIG. 12B is shown in FIG. 12D. The legs 11 a, 11 b, 11 c, 11 d of the baskets illustrated in FIGS. 11B, 11D, 12C and 12D may be pre-formed, and their cross-section may be B-shaped, D-shaped, U-shaped, round, half-round, oval, rectangular, ribbon-like, or a variety of other cross-sectional shapes such as those shown in FIGS. 2D and 2E.
  • [0078]
    In yet another embodiment of an atraumatic wire basket illustrated in FIG. 13A, the distal ends 3 a, 3 b, 3 c, 3 d of the basket wires 3 insert into a cap 160 with a core 170 at the basket tip 100 as shown in FIG. 13C. The distal ends 3 a, 3 b, 3 c, 3 d of the wires are affixed to the cap 160 by soldering, gluing or any means known in the art. The wires emerging from the cap are bent and then drawn down proximally as indicated by the arrows in FIG. 13B to form basket legs 11 a, 11 b, 11 c, 11 d. The end-sections of the legs 1 a, 1 b, 1 c, 1 d are gathered together at the basket base 20 to form an atraumatic wire basket 10 as shown in FIG. 13A. The end-sections 1 a, 1 b, 1 c, 1 d can be joined to a cable, shaft or coil (not shown).
  • [0079]
    In some embodiments of the invention, the sheath 12 of the medical retrieval device is manufactured from polyimide, PTFE, composites or similar materials. In order to prevent the distal end 16 of a polyimide sheath 12 from splitting, a metal ring 180, as illustrated in FIG. 14, is inserted into the lumen 14 of the distal end 16 of a polyimide sheath 12. The metal ring 180 is flush with the end 16 of the polyimide sheath or may protrude slightly beyond the end of the sheath as illustrated in FIG. 14.
  • [0080]
    In yet another aspect, the invention relates to a method for retrieving material from a body such as a body tract or body canal. Material (e.g., biological or foreign) can be retrieved from a body by using a tipless basket where at least a distal portion of the basket is defined by a shape which comprises a single unit or by using an atraumatic wire loop basket, each basket wire forming a loop with a distal atraumatic protrusion. The basket of the retrieval device has a tipless or an atraumatic distal end and thus allows the capture of material that is located in pockets or other difficult-to-access areas within the body. Because the distal basket end is atraumatic, it can make intimate contact with the surface of tissue, even the walls or lining of a pocket-type area, and allows the retrieval of stones or other materials that are unrecoverable with conventional tipped baskets that can cause tissue trauma and are limited, by the existence of the protruding tip, in how close the basket can approach the tissue. A method for retrieving material from a body includes inserting a retrieval device with an atraumatic basket into the body, moving the tipless basket into the extended position, maneuvering the basket via one or more actuators on the proximal handle (which is located outside of the body) of the retrieval device until the material (e.g., stone) is entrapped within the three-dimensional basket structure, and capturing the material within the basket by moving the basket relative to the sheath to close the basket legs around the material. With the material so gripped or held by the basket, the basket can be withdrawn from the body to remove the material from the body. Before the basket is withdrawn from the body with the captured material, the material can be broken apart by, for example, laser energy or lithotripsy. Mechanisms for breaking up the material before its removal from the body can be part of the retrieval device or can be separate tools/devices that are also inserted into the body and utilized at the appropriate time in the stone removal procedure. The material that can be captured with tipless baskets according to the invention includes a thrombus, embolus, foreign body, calculus, or a stone, such as a kidney stone, a ureteral stone, a urinary bladder stone, a gall bladder stone, a stone within the biliary tree, tumor, polyp or foreign body.
  • [0081]
    Variations, modifications, and other implementations of what is described herein will occur to those of ordinary skill in the art without departing from the spirit and the scope of the invention as claimed. Accordingly, the invention is to be defined not by the preceding illustrative description but instead by the spirit and scope of the following claims.

Claims (2)

1. A medical retrieval device, comprising:
a sheath having a proximal end and a distal end;
a handle at the proximal end of the shaft; and
a basket for removing material from a body, the basket having a collapsed position where the basket is enclosed within the sheath and an expanded position where the basket extends from the distal end of the sheath, the basket comprising three or more legs, at least a distal end portion of the basket being defined by a shape which comprises a single continuous unit.
2-20. (canceled)
US11312532 1998-04-23 2005-12-21 Atraumatic medical retrieval device Abandoned US20060161174A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US8281098 true 1998-04-23 1998-04-23
US10544898 true 1998-10-23 1998-10-23
US09296327 US6224612B1 (en) 1998-04-23 1999-04-22 Atraumatic medical retrieval device
US09756093 US6527781B2 (en) 1998-04-23 2001-01-08 Atraumatic medical retrieval device
US10360417 US7077849B2 (en) 1998-04-23 2003-02-07 Atraumatic medical retrieval device
US10949874 US7691111B2 (en) 1998-04-23 2004-09-27 Atraumatic medical retrieval device
US11312532 US20060161174A1 (en) 1998-04-23 2005-12-21 Atraumatic medical retrieval device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11312532 US20060161174A1 (en) 1998-04-23 2005-12-21 Atraumatic medical retrieval device

Publications (1)

Publication Number Publication Date
US20060161174A1 true true US20060161174A1 (en) 2006-07-20

Family

ID=26767880

Family Applications (7)

Application Number Title Priority Date Filing Date
US09298423 Active US6626915B2 (en) 1998-04-23 1999-04-22 Medical retrieval device with loop basket
US09296327 Active US6224612B1 (en) 1998-04-23 1999-04-22 Atraumatic medical retrieval device
US09756093 Active US6527781B2 (en) 1998-04-23 2001-01-08 Atraumatic medical retrieval device
US10360417 Active 2019-06-02 US7077849B2 (en) 1998-04-23 2003-02-07 Atraumatic medical retrieval device
US10949874 Active 2022-07-27 US7691111B2 (en) 1998-04-23 2004-09-27 Atraumatic medical retrieval device
US11312532 Abandoned US20060161174A1 (en) 1998-04-23 2005-12-21 Atraumatic medical retrieval device
US12706074 Active US8105336B2 (en) 1998-04-23 2010-02-16 Atraumatic medical retrieval device

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US09298423 Active US6626915B2 (en) 1998-04-23 1999-04-22 Medical retrieval device with loop basket
US09296327 Active US6224612B1 (en) 1998-04-23 1999-04-22 Atraumatic medical retrieval device
US09756093 Active US6527781B2 (en) 1998-04-23 2001-01-08 Atraumatic medical retrieval device
US10360417 Active 2019-06-02 US7077849B2 (en) 1998-04-23 2003-02-07 Atraumatic medical retrieval device
US10949874 Active 2022-07-27 US7691111B2 (en) 1998-04-23 2004-09-27 Atraumatic medical retrieval device

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US12706074 Active US8105336B2 (en) 1998-04-23 2010-02-16 Atraumatic medical retrieval device

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US (7) US6626915B2 (en)
JP (6) JP2002512072A (en)
CA (2) CA2329400C (en)
DE (2) DE69929182T2 (en)
EP (2) EP1071375B8 (en)
WO (2) WO1999053849A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050119668A1 (en) * 2003-09-18 2005-06-02 Boston Scientific Scimed, Inc. Medical retrieval devices and methods
US20080221587A1 (en) * 2007-03-09 2008-09-11 Jeremy Schwartz Two-stage snare-basket medical device
US20090157163A1 (en) * 2007-12-17 2009-06-18 Eric Cheng Retrieval device

Families Citing this family (153)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5893847A (en) 1993-03-16 1999-04-13 Ep Technologies, Inc. Multiple electrode support structures with slotted hub and hoop spline elements
DE29880158U1 (en) 1997-11-07 2000-11-30 Salviac Ltd Embolic protection device
US7491216B2 (en) 1997-11-07 2009-02-17 Salviac Limited Filter element with retractable guidewire tip
DE69929182T2 (en) * 1998-04-23 2006-09-21 Boston Scientific Ltd., St. Michael A medical device for recovery of the separated parts of organs by means of slings
US6709465B2 (en) * 1999-03-18 2004-03-23 Fossa Medical, Inc. Radially expanding ureteral device
US6964672B2 (en) 1999-05-07 2005-11-15 Salviac Limited Support frame for an embolic protection device
US6918921B2 (en) 1999-05-07 2005-07-19 Salviac Limited Support frame for an embolic protection device
US7169154B1 (en) * 1999-05-25 2007-01-30 Scimedlife Systems, Inc. Releasable basket and method of making thereof
CA2387467C (en) 1999-10-25 2009-10-06 Boston Scientific Limited Forceps for medical use
GB0127195D0 (en) 2000-04-20 2002-01-02 Salviac Ltd An embolic protection system
CA2422782C (en) 2000-10-19 2012-02-07 Applied Medical Resources Corporation Surgical access apparatus and method
JP4226327B2 (en) * 2001-01-08 2009-02-18 ボストン サイエンティフィック リミテッド Collection basket with a releasable chip
US7101379B2 (en) 2001-04-02 2006-09-05 Acmi Corporation Retrieval basket for a surgical device and system and method for manufacturing same
US6814739B2 (en) 2001-05-18 2004-11-09 U.S. Endoscopy Group, Inc. Retrieval device
US7640952B2 (en) * 2001-06-28 2010-01-05 Lithotech Medical Ltd. Method for manufacturing a surgical device for extracting a foreign object
DE60130497D1 (en) * 2001-06-28 2007-10-25 Lithotech Medical Ltd A device for trapping foreign bodies
JP4567918B2 (en) * 2001-07-02 2010-10-27 テルモ株式会社 For removing an intravascular foreign body wire and medical instrument
US20030023247A1 (en) * 2001-07-03 2003-01-30 Lind Stuart J. Medical retrieval device with cable protection means
US8021372B2 (en) * 2001-07-05 2011-09-20 Annex Medical, Inc. Medical retrieval device with independent rotational means
WO2003015848A9 (en) 2001-08-14 2004-06-17 Applied Med Resources Access sealing apparatus and method
EP1651094A4 (en) 2003-08-06 2008-07-30 Applied Med Resources Surgical device with tack-free gel and method of manufacture
EP1425055A4 (en) * 2001-09-10 2008-06-11 Rafael Medical Technologies In Intravascular devices, retrieval systems, and corresponding methods
WO2003033044A3 (en) * 2001-10-12 2003-10-09 Applied Med Resources High flow stone basket system
US6939296B2 (en) * 2001-10-17 2005-09-06 Applied Medical Resources Corp. Laparoscopic illumination apparatus and method
US7052454B2 (en) * 2001-10-20 2006-05-30 Applied Medical Resources Corporation Sealed surgical access device
US6958037B2 (en) 2001-10-20 2005-10-25 Applied Medical Resources Corporation Wound retraction apparatus and method
US6676668B2 (en) * 2001-12-12 2004-01-13 C.R. Baed Articulating stone basket
US6682537B2 (en) * 2001-12-20 2004-01-27 The Cleveland Clinic Foundation Apparatus and method for capturing a wire in a blood vessel
EP1455686A2 (en) 2001-12-21 2004-09-15 Salviac Limited A support frame for an embolic protection device
US6939360B2 (en) * 2002-01-16 2005-09-06 Healthy Enterprises Ear cleaning appliance and method of manufacture
US6695834B2 (en) 2002-01-25 2004-02-24 Scimed Life Systems, Inc. Apparatus and method for stone removal from a body
US20030187495A1 (en) * 2002-04-01 2003-10-02 Cully Edward H. Endoluminal devices, embolic filters, methods of manufacture and use
EP2363105B1 (en) 2002-06-05 2014-01-08 Applied Medical Resources Corporation Wound retractor
WO2004014242A9 (en) * 2002-08-13 2004-05-27 Wilson Cook Medical Inc Ercp catheter with a removable handle for lithotriptor compatible basket
FR2844446B1 (en) * 2002-09-17 2004-11-26 Porges Sa surgical extractor for extracting foreign bodies through natural or surgical passages
US8012100B2 (en) * 2002-10-01 2011-09-06 Boston Scientific Scimed, Inc. Fluid pressure-actuated medical device
US8043303B2 (en) * 2002-10-04 2011-10-25 Cook Medical Technologies Llc Handle for interchangeable medical device
EP1551317A1 (en) * 2002-10-04 2005-07-13 Cook Urological Inc. Rigid extractor with wire basket
US7374564B2 (en) * 2002-10-08 2008-05-20 Brown Joe D Apparatus and method for causing deflection of a surgical instrument
US20040093012A1 (en) 2002-10-17 2004-05-13 Cully Edward H. Embolic filter frame having looped support strut elements
DE10258708A1 (en) * 2002-12-12 2004-07-08 Simag GmbH Systeme und Instrumente für die Magnetresonanztomographie vessel filter
US7678119B2 (en) * 2003-01-15 2010-03-16 Scimed Life Systems, Inc. Medical retrieval device with frangible basket
US8252019B2 (en) 2003-01-31 2012-08-28 Cordis Corporation Filter retrieval catheter system, and methods
US20050020884A1 (en) 2003-02-25 2005-01-27 Hart Charles C. Surgical access system
EP3222218A1 (en) * 2003-03-17 2017-09-27 Covidien LP Endoscopic tissue removal apparatus and method
US8052694B2 (en) * 2003-03-19 2011-11-08 Boston Scientific Scimed, Inc. Device for manipulating material in a tissue
US7559934B2 (en) * 2003-04-07 2009-07-14 Scimed Life Systems, Inc. Beaded basket retrieval device
US7322989B2 (en) * 2003-04-24 2008-01-29 Boston Scientific Scimed, Inc. Retractable grasper
US9101383B1 (en) 2003-04-25 2015-08-11 Annex Medical, Inc. Medical retrieval device
US7731722B2 (en) 2003-07-31 2010-06-08 Vance Products Incorporated Ureteral backstop filter and retrieval device
US7588545B2 (en) 2003-09-10 2009-09-15 Boston Scientific Scimed, Inc. Forceps and collection assembly with accompanying mechanisms and related methods of use
US7163510B2 (en) 2003-09-17 2007-01-16 Applied Medical Resources Corporation Surgical instrument access device
US20050059993A1 (en) * 2003-09-17 2005-03-17 Kamal Ramzipoor Embolectomy device
US7727227B2 (en) * 2003-09-18 2010-06-01 Boston Scientific Scimed, Inc. Medical retrieval devices with laser and retrieval assembly
US7004176B2 (en) * 2003-10-17 2006-02-28 Edwards Lifesciences Ag Heart valve leaflet locator
US7942896B2 (en) * 2003-11-25 2011-05-17 Scimed Life Systems, Inc. Forceps and collection assembly and related methods of use and manufacture
US20050192592A1 (en) * 2004-02-27 2005-09-01 Cook Urological Incorporated Self-tensioning handle for endoscopic device
US20050209612A1 (en) * 2004-03-02 2005-09-22 Nakao Naomi L Endoscopic suturing assembly and associated methodology using a temperature biased suture needle
US8142445B2 (en) * 2004-05-06 2012-03-27 Boston Scientific Scimed, Inc. Stone retrieval device and related methods of manufacture
US20050261705A1 (en) * 2004-05-21 2005-11-24 Gist Christopher W Device to remove kidney stones
EP1765192A4 (en) * 2004-05-25 2012-10-31 Us Endoscopy Group Inc Retrieval device
US7462183B2 (en) * 2004-07-07 2008-12-09 Percutaneous Systems, Inc. Methods for deploying conformed structures in body lumens
US7883516B2 (en) * 2004-07-07 2011-02-08 Percutaneous Systems, Inc. Methods for removing kidney stones from the ureter
US9655633B2 (en) 2004-09-10 2017-05-23 Penumbra, Inc. System and method for treating ischemic stroke
US20060058837A1 (en) * 2004-09-10 2006-03-16 Arani Bose System and method for treating ischemic stroke
US8366735B2 (en) * 2004-09-10 2013-02-05 Penumbra, Inc. System and method for treating ischemic stroke
US7824415B2 (en) * 2004-09-15 2010-11-02 Boston Scientific Scimed, Inc. Atraumatic medical device
US7824416B2 (en) * 2004-10-06 2010-11-02 Boston Scientific Scimed, Inc. Medical retrieval device
US8512350B2 (en) * 2004-12-01 2013-08-20 Boston Scientific Scimed, Inc. Single operator medical device handles and related methods of use
WO2006074163A3 (en) 2005-01-03 2006-08-31 Crux Biomedical Inc Retrievable endoluminal filter
US20060173525A1 (en) * 2005-02-02 2006-08-03 Percutaneous Systems, Inc. Methods and systems for deploying luminal prostheses
US8109941B2 (en) * 2005-02-28 2012-02-07 Boston Scientific Scimed, Inc. Distal release retrieval assembly and related methods of use
US8523879B1 (en) 2005-03-31 2013-09-03 Stuart J. Lind Stone retriever for flexible endoscopes having small diameter working channels
EP1971279A4 (en) * 2006-01-10 2009-05-13 Univ Southern Illinois Material retrieval device and method of using
US20060247663A1 (en) * 2005-04-27 2006-11-02 Southern Illinois University Office Of Research, Development And Administration Laser resistant calculus retrieval device and method of using
US7914540B2 (en) * 2005-04-27 2011-03-29 Board Of Trustees Of Southern Illinois University Material retrieval device and method of using
US20120312779A1 (en) 2005-05-06 2012-12-13 Titian Spine, LLC Methods for manufacturing implants having integration surfaces
US7762960B2 (en) 2005-05-13 2010-07-27 Boston Scientific Scimed, Inc. Biopsy forceps assemblies
US20060270806A1 (en) * 2005-05-26 2006-11-30 Hale Wesley R Miscible high Tg polyester/polymer blend compositions and films formed therefrom
US7972292B2 (en) 2005-07-06 2011-07-05 Percutaneous Systems, Inc. Methods and apparatus for deploying ureteral stents
US8206401B2 (en) * 2005-07-15 2012-06-26 Granit Medical Innovation Llc Endoscope cutting and retrieving snare instrument
DE102005040214A1 (en) * 2005-08-15 2007-03-01 Epflex Feinwerktechnik Gmbh More wire unit and manufacturing method thereof
DE602006012518D1 (en) * 2005-10-14 2010-04-08 Applied Med Resources Retractors with shared mature and gel pad
US20070106233A1 (en) * 2005-10-20 2007-05-10 Percutaneous Systems, Inc. Systems and methods for dilating and accessing body lumens
CA2626867C (en) 2005-11-03 2015-08-11 Vance Products Incorporated, D/B/A Cook Urological Incorporated Articulating basket with simultaneous basket extension or basket retraction
US7473232B2 (en) * 2006-02-24 2009-01-06 Boston Scientific Scimed, Inc. Obtaining a tissue sample
EP2012683A1 (en) * 2006-05-03 2009-01-14 Wilson-Cook Medical Inc. Lithotripsy compatible wire basket
US20070299456A1 (en) * 2006-06-06 2007-12-27 Teague James A Light responsive medical retrieval devices
US7837693B2 (en) * 2006-06-09 2010-11-23 Boston Scientific Scimed, Inc. Retrieval device with laser cut basket
US8361084B2 (en) * 2006-09-01 2013-01-29 Boston Scientific Scimed, Inc. Medical retrieval baskets
EP2068728B1 (en) * 2006-10-06 2013-11-20 Lithotech Medical Ltd. Retrieval snare for extracting foreign objects from body cavities and method for manufacturing thereof
US20080269774A1 (en) 2006-10-26 2008-10-30 Chestnut Medical Technologies, Inc. Intracorporeal Grasping Device
US20080194993A1 (en) * 2006-11-15 2008-08-14 Mclaren Douglas E Multi-dimensional loop tip elongated medical structures
US8535334B2 (en) * 2007-04-17 2013-09-17 Lazarus Effect, Inc. Complex wire formed devices
EP2146644A4 (en) 2007-05-11 2012-07-18 Applied Med Resources Surgical retractor
US8109873B2 (en) 2007-05-11 2012-02-07 Applied Medical Resources Corporation Surgical retractor with gel pad
JP5460582B2 (en) * 2007-06-08 2014-04-02 ユー.エス. エンドスコピー グループ, インコーポレイテッド Collection device
US8591521B2 (en) 2007-06-08 2013-11-26 United States Endoscopy Group, Inc. Retrieval device
US8475489B2 (en) 2007-07-13 2013-07-02 Percutaneous Systems, Inc. Apparatus for occluding body lumens
US7879066B2 (en) * 2007-07-13 2011-02-01 Percutaneous Sustems, Inc. Apparatus for occluding body lumens
US20090024138A1 (en) * 2007-07-18 2009-01-22 Rafic Saleh Surgical retrieval device radially deployable from collapsed position to a snare or cauterization loop
US8858563B2 (en) * 2007-10-30 2014-10-14 Hipco, Inc. Device and method for hip distention and access
EP2237815A4 (en) * 2008-01-22 2014-04-09 Applied Med Resources Surgical instrument access device
US8617177B2 (en) * 2008-04-01 2013-12-31 Coloplast A/S Wire basket unit having fixing disk element
US20090264907A1 (en) * 2008-04-18 2009-10-22 Boston Scientific Scimed, Inc. Medical device for crossing an occluded blood vessel
CA2727791A1 (en) 2008-06-13 2009-12-17 Pivot Medical, Inc. Methods and apparatus for joint distraction
US8974462B2 (en) * 2008-06-13 2015-03-10 Pivot Medical, Inc. Devices and methods for minimally invasive access into a joint
WO2010010545A1 (en) * 2008-07-22 2010-01-28 Neuravi Limited Clot capture systems and associated methods
US9402707B2 (en) 2008-07-22 2016-08-02 Neuravi Limited Clot capture systems and associated methods
US8262568B2 (en) 2008-10-13 2012-09-11 Applied Medical Resources Corporation Single port access system
US8986291B2 (en) * 2008-12-01 2015-03-24 Percutaneous Systems, Inc. Methods and systems for capturing and removing urinary stones from body cavities
US20100204672A1 (en) * 2009-02-12 2010-08-12 Penumra, Inc. System and method for treating ischemic stroke
CA2754905A1 (en) * 2009-03-17 2010-09-23 Pivot Medical, Inc. Method and apparatus for distracting a joint, including the provision and use of a novel joint-spacing balloon catheter and a novel inflatable perineal post
US9186181B2 (en) 2009-03-17 2015-11-17 Pivot Medical, Inc. Method and apparatus for distracting a joint
EP2473124A1 (en) * 2009-08-31 2012-07-11 Applied Medical Resources Corporation Multifunctional surgical access system
US8721649B2 (en) 2009-12-04 2014-05-13 Pivot Medical, Inc. Hip joint access using a circumferential wire and balloon
US8409217B2 (en) * 2010-01-25 2013-04-02 Ethicon Endo-Surgery, Inc. Tissue retrieval device with bladders
US8425533B2 (en) * 2010-01-26 2013-04-23 Ethicon Endo-Surgery, Inc. Tissue retrieval device with pouch stretching arm
US8419749B2 (en) * 2010-01-26 2013-04-16 Ethicon Endo-Surgery, Inc. Tissue retrieval device with reinforced pouch and variable volume
US8414596B2 (en) * 2010-01-26 2013-04-09 Ethicon Endo-Surgery, Inc. Tissue retrieval device with gusseted pouch
US8974469B2 (en) * 2010-04-22 2015-03-10 Medical Device Technologies, Inc. Snare
WO2012044959A1 (en) 2010-10-01 2012-04-05 Applied Medical Resources Corporation Natural orifice surgery system
US9289115B2 (en) 2010-10-01 2016-03-22 Applied Medical Resources Corporation Natural orifice surgery system
US9463036B2 (en) 2010-10-22 2016-10-11 Neuravi Limited Clot engagement and removal system
WO2012064786A1 (en) 2010-11-08 2012-05-18 Pivot Medical, Inc. Method and apparatus for distracting a joint
US9301769B2 (en) 2011-03-09 2016-04-05 Neuravi Limited Clot retrieval device for removing clot from a blood vessel
CA2831116C (en) 2011-04-22 2015-04-14 Topera, Inc. Basket style cardiac mapping catheter having spline bends for detection of cardiac rhythm disorders
EP2706923B1 (en) 2011-05-10 2015-08-05 Applied Medical Resources Corporation Wound retractor
US9039715B2 (en) 2011-07-11 2015-05-26 Great Aspirations Ltd. Apparatus for entrapping and extracting objects from body cavities
US8469970B2 (en) * 2011-07-11 2013-06-25 Great Aspirations Ltd. Apparatus for entrapping and extracting objects from body cavities
US9101342B2 (en) 2011-07-22 2015-08-11 Rafic Saleh Surgical retrieval apparatus and method with semi-rigidly extendable and collapsible basket
US20130289578A1 (en) * 2012-04-13 2013-10-31 Yawa-Med, Inc. Blood clot extraction device
WO2013173577A1 (en) * 2012-05-18 2013-11-21 The Board Of Regents Of The University Of Texas System Devices and methods for removal of calculus
US9308007B2 (en) 2012-08-14 2016-04-12 W. L. Gore & Associates, Inc. Devices and systems for thrombus treatment
US9186164B2 (en) * 2012-10-25 2015-11-17 Gyrus Acmi, Inc. Impact lithotripsy tip
EP2958498A4 (en) * 2013-02-22 2016-11-23 Mawi DNA Technologies LLC Sample recovery and collection device
US9642635B2 (en) 2013-03-13 2017-05-09 Neuravi Limited Clot removal device
US9433429B2 (en) 2013-03-14 2016-09-06 Neuravi Limited Clot retrieval devices
US9476412B2 (en) * 2013-03-14 2016-10-25 Lawrence Livermore National Security, Llc Resistively heated shape memory polymer device
JP2016513505A (en) 2013-03-14 2016-05-16 ニューラヴィ・リミテッド Clot retrieval device for removing an obstruction clot from a blood vessel
EP3033145A1 (en) 2013-08-16 2016-06-22 Cardiac Pacemakers, Inc. Leadless cardiac pacemaker and retrieval device
US9492674B2 (en) 2013-08-16 2016-11-15 Cardiac Pacemakers, Inc. Leadless cardiac pacemaker with delivery and/or retrieval features
US9393427B2 (en) 2013-08-16 2016-07-19 Cardiac Pacemakers, Inc. Leadless cardiac pacemaker with delivery and/or retrieval features
US9480850B2 (en) 2013-08-16 2016-11-01 Cardiac Pacemakers, Inc. Leadless cardiac pacemaker and retrieval device
US9795401B2 (en) 2013-11-27 2017-10-24 Boston Scientific Scimed, Inc. Medical retrieval devices and related methods of use
US9808269B2 (en) 2013-12-12 2017-11-07 Boston Scientific Scimed, Inc. Adjustable medical retrieval devices and related methods of use
US9724113B2 (en) 2014-01-03 2017-08-08 Boston Scientific Scimed, Inc. Retrieval devices and related methods of use
EP3137163A1 (en) 2014-04-29 2017-03-08 Cardiac Pacemakers, Inc. Leadless cardiac pacemaker with retrieval features
EP3169510A1 (en) 2014-07-18 2017-05-24 Applied Medical Resources Corporation Gels having permanent tack free coatings and method of manufacture
US20160157985A1 (en) * 2014-12-03 2016-06-09 Stryker Corporation, A Michigan Corporation Apparatus and Methods for Removing an Obstruction from a Bodily Duct of a Patient
US20160256179A1 (en) 2015-03-04 2016-09-08 Gyrus Acmi, Inc., D.B.A. Olympus Surgical Technologies America Medical device for capturing stone fragments
US20160278797A1 (en) * 2015-03-24 2016-09-29 Boston Scientific Scimed, Inc. Retrieval devices and related methods of use
US9743944B1 (en) * 2017-04-24 2017-08-29 Calcula Technologies, Inc. Stone retrieval balloon catheter

Citations (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US651395A (en) * 1899-09-26 1900-06-12 Milo Rob Stapp Curette.
US1054960A (en) * 1912-02-12 1913-03-04 Robert M Butner Veterinary surgical instrument.
US2556783A (en) * 1950-05-16 1951-06-12 American Cystoscope Makers Inc Surgical forceps
US2767703A (en) * 1955-01-07 1956-10-23 Herbert E Nieburgs Exploratory device for cell specimens
US3791387A (en) * 1970-12-05 1974-02-12 Olympus Optical Co Forceps
US3828790A (en) * 1973-02-28 1974-08-13 American Cystoscope Makers Inc Surgical snare
US3955578A (en) * 1974-12-23 1976-05-11 Cook Inc. Rotatable surgical snare
US4198960A (en) * 1977-01-31 1980-04-22 Olympus Optical Co., Ltd. Apparatus for removing a foreign matter having individually operable trapping and flexing wires, a central channel for illumination, suction and injection and a laterally disposed bore for feeding fluids
US4326530A (en) * 1980-03-05 1982-04-27 Fleury Jr George J Surgical snare
US4427014A (en) * 1981-05-06 1984-01-24 Metallisations Et Traitements Optiques M.T.O. Biopsy forceps
US4590938A (en) * 1984-05-04 1986-05-27 Segura Joseph W Medical retriever device
US4655219A (en) * 1983-07-22 1987-04-07 American Hospital Supply Corporation Multicomponent flexible grasping device
US4691705A (en) * 1985-02-08 1987-09-08 Olympus Optical Co., Ltd. Calculus crushing apparatus
US4807626A (en) * 1985-02-14 1989-02-28 Mcgirr Douglas B Stone extractor and method
US4893621A (en) * 1986-08-22 1990-01-16 Heyman Arnold M Slipover antegrade loading calculus extraction instrument system
US4994079A (en) * 1989-07-28 1991-02-19 C. R. Bard, Inc. Grasping forceps
US5010894A (en) * 1988-01-07 1991-04-30 Edhag Knut O Intravascular electrode lead usable for cardiac defibrillation
US5011488A (en) * 1988-12-07 1991-04-30 Robert Ginsburg Thrombus extraction system
US5057114A (en) * 1990-09-18 1991-10-15 Cook Incorporated Medical retrieval basket
US5064428A (en) * 1990-09-18 1991-11-12 Cook Incorporated Medical retrieval basket
US5084054A (en) * 1990-03-05 1992-01-28 C.R. Bard, Inc. Surgical gripping instrument
US5098440A (en) * 1990-08-14 1992-03-24 Cordis Corporation Object retrieval method and apparatus
US5147378A (en) * 1991-03-05 1992-09-15 Harold Markham Grapsing forceps
US5163942A (en) * 1991-12-09 1992-11-17 Everest Medical Corporation Surgical instrument with grasping loop for laparoscopic procedures
US5171233A (en) * 1990-04-25 1992-12-15 Microvena Corporation Snare-type probe
US5171314A (en) * 1990-07-24 1992-12-15 Andrew Surgical, Inc. Surgical snare
US5207686A (en) * 1992-04-15 1993-05-04 Stuart Dolgin Surgical snare
US5290294A (en) * 1990-04-17 1994-03-01 Brian Cox Method and apparatus for removal of a foreign body cavity
US5365926A (en) * 1986-11-14 1994-11-22 Desai Jawahar M Catheter for mapping and ablation and method therefor
US5376100A (en) * 1991-12-23 1994-12-27 Lefebvre; Jean-Marie Rotary atherectomy or thrombectomy device with centrifugal transversal expansion
US5397320A (en) * 1994-03-03 1995-03-14 Essig; Mitchell N. Dissecting surgical device and associated method
US5403324A (en) * 1994-01-14 1995-04-04 Microsonic Engineering Devices Company, Inc. Flexible catheter with stone basket and ultrasonic conductor
US5417684A (en) * 1993-03-11 1995-05-23 Wilson Greatbatch Ltd. Laparoscopic surgical grasper with a loop with gripping formations
US5421832A (en) * 1989-12-13 1995-06-06 Lefebvre; Jean-Marie Filter-catheter and method of manufacturing same
US5454370A (en) * 1993-12-03 1995-10-03 Avitall; Boaz Mapping and ablation electrode configuration
US5486183A (en) * 1990-10-09 1996-01-23 Raychem Corporation Device or apparatus for manipulating matter
US5496330A (en) * 1993-02-19 1996-03-05 Boston Scientific Corporation Surgical extractor with closely angularly spaced individual filaments
US5499981A (en) * 1993-03-16 1996-03-19 Ep Technologies, Inc. Flexible interlaced multiple electrode assemblies
US5549661A (en) * 1993-10-15 1996-08-27 Ep Technologies, Inc. Systems and methods for creating complex lesion patterns in body tissue
US5613973A (en) * 1995-03-10 1997-03-25 Wilson Greatbatch Ltd. Laraposcopic surgical grasper having an attachable strap
US5632746A (en) * 1989-08-16 1997-05-27 Medtronic, Inc. Device or apparatus for manipulating matter
US5647870A (en) * 1993-03-16 1997-07-15 Ep Technologies, Inc. Multiple electrode support structures
US5658296A (en) * 1994-11-21 1997-08-19 Boston Scientific Corporation Method for making surgical retrieval baskets
US5693069A (en) * 1993-07-15 1997-12-02 Shallman; Richard W. Gallbladder stone extracting forceps for laparoscopic cholecystectomy
US5725525A (en) * 1993-03-16 1998-03-10 Ep Technologies, Inc. Multiple electrode support structures with integral hub and spline elements
US5810876A (en) * 1995-10-03 1998-09-22 Akos Biomedical, Inc. Flexible forceps device
US5823189A (en) * 1993-03-16 1998-10-20 Ep Technologies, Inc. Multiple electrode support structures with spline elements and over-molded hub
US5846238A (en) * 1996-01-19 1998-12-08 Ep Technologies, Inc. Expandable-collapsible electrode structures with distal end steering or manipulation
US5853411A (en) * 1996-01-19 1998-12-29 Ep Technologies, Inc. Enhanced electrical connections for electrode structures
US5989266A (en) * 1997-02-24 1999-11-23 Foster; Thomas L. Medical device including basket
US6013086A (en) * 1997-08-28 2000-01-11 Asahi Kogaku Kogyo Kabushiki Kaisha Wire loop type instrument for endoscope
US6168603B1 (en) * 1995-02-02 2001-01-02 Boston Scientific Corporation Surgical extractor
US6216044B1 (en) * 1993-03-16 2001-04-10 Ep Technologies, Inc. Medical device with three dimensional collapsible basket structure
US6224612B1 (en) * 1998-04-23 2001-05-01 Scimed Life Systems, Inc. Atraumatic medical retrieval device
US6368328B1 (en) * 1999-09-16 2002-04-09 Scimed Life Systems, Inc. Laser-resistant medical retrieval device
US6500182B2 (en) * 1998-03-27 2002-12-31 Cook Urological, Incorporated Minimally-invasive medical retrieval device

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US517684A (en) * 1894-04-03 Alfred day
US2556782A (en) 1948-04-20 1951-06-12 Melissa M Venters Elevated ingredient dispenser having a rotary bottom discharge valve
DE2043621A1 (en) * 1970-09-03 1972-03-09 Fischer Artur
JPS5230574A (en) 1975-09-03 1977-03-08 Seiko Instr & Electronics Ltd Fastening method of decorative stones
JPS53126388U (en) * 1977-03-14 1978-10-06
FR2470584B1 (en) * 1979-12-07 1985-05-03 Porges
EP0123175B1 (en) 1983-04-16 1986-09-17 Knut Dr. Korth Catheter for removing calculus from the kidneys or urethra
DE3522649A1 (en) 1984-06-25 1986-01-23 Economic Dev Trust Reg Medical device for removal of a solid from a body cavity
DE8501297U1 (en) 1985-01-19 1986-02-06 Pauldrach, Georg, 3008 Garbsen, De
DE3501707C2 (en) 1985-01-19 1987-01-02 Georg 3008 Garbsen De Pauldrach
US4718419A (en) 1985-08-05 1988-01-12 Olympus Optical Co., Ltd. Snare assembly for endoscope
US4790812A (en) * 1985-11-15 1988-12-13 Hawkins Jr Irvin F Apparatus and method for removing a target object from a body passsageway
JPS63111851A (en) 1986-10-31 1988-05-17 Olympus Optical Co Basket type grasping forcept
DE8707516U1 (en) * 1987-05-21 1987-08-20 Seuberth, Kurt, 8550 Forchheim, De
DE8707515U1 (en) 1987-05-21 1987-07-30 Seuberth, Kurt, 8550 Forchheim, De
JPH0195910A (en) 1987-10-07 1989-04-14 Toyo Tire & Rubber Co Ltd Pneumatic tire prevented from biting stone
JPH01172813A (en) 1987-12-26 1989-07-07 Canon Inc Laser unit
FR2660189B1 (en) * 1990-03-28 1992-07-31 Lefebvre Jean Marie A device for implantation in a vessel with lateral lugs has opposing teeth.
EP0512729B1 (en) * 1991-05-03 1995-07-26 VANCE PRODUCTS INCORPORATED d/b/a COOK UROLOGICAL INCORPORATED Surgical instrument and its manufacturing method
DE4212430C2 (en) * 1992-04-14 1998-01-22 Franz Diemer Apparatus for recovering body organs, particularly of the gallbladder
US5991650A (en) * 1993-10-15 1999-11-23 Ep Technologies, Inc. Surface coatings for catheters, direct contacting diagnostic and therapeutic devices
WO1994021170A1 (en) * 1993-03-16 1994-09-29 Ep Technologies, Inc. Flexible circuit assemblies employing ribbon cable
US5562619A (en) 1993-08-19 1996-10-08 Boston Scientific Corporation Deflectable catheter
NL1000105C2 (en) 1995-04-10 1996-10-11 Cordis Europ Catheter with filter and thrombus removal device.
US5658293A (en) * 1995-10-10 1997-08-19 Zimmer, Inc. Guide platform associated with intramedullary rod
JP3761104B2 (en) * 1995-11-27 2006-03-29 エム イー ディ インスチィチュート インクMed Institute Incorporated The medical insertion device
US6099534A (en) * 1997-10-01 2000-08-08 Scimed Life Systems, Inc. Releasable basket
US5829514A (en) * 1997-10-29 1998-11-03 Eastman Kodak Company Bonded cast, pin-finned heat sink and method of manufacture
US6174318B1 (en) * 1998-04-23 2001-01-16 Scimed Life Systems, Inc. Basket with one or more moveable legs

Patent Citations (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US651395A (en) * 1899-09-26 1900-06-12 Milo Rob Stapp Curette.
US1054960A (en) * 1912-02-12 1913-03-04 Robert M Butner Veterinary surgical instrument.
US2556783A (en) * 1950-05-16 1951-06-12 American Cystoscope Makers Inc Surgical forceps
US2767703A (en) * 1955-01-07 1956-10-23 Herbert E Nieburgs Exploratory device for cell specimens
US3791387A (en) * 1970-12-05 1974-02-12 Olympus Optical Co Forceps
US3828790A (en) * 1973-02-28 1974-08-13 American Cystoscope Makers Inc Surgical snare
US3955578A (en) * 1974-12-23 1976-05-11 Cook Inc. Rotatable surgical snare
US4198960A (en) * 1977-01-31 1980-04-22 Olympus Optical Co., Ltd. Apparatus for removing a foreign matter having individually operable trapping and flexing wires, a central channel for illumination, suction and injection and a laterally disposed bore for feeding fluids
US4326530A (en) * 1980-03-05 1982-04-27 Fleury Jr George J Surgical snare
US4427014A (en) * 1981-05-06 1984-01-24 Metallisations Et Traitements Optiques M.T.O. Biopsy forceps
US4655219A (en) * 1983-07-22 1987-04-07 American Hospital Supply Corporation Multicomponent flexible grasping device
US4590938A (en) * 1984-05-04 1986-05-27 Segura Joseph W Medical retriever device
US4691705A (en) * 1985-02-08 1987-09-08 Olympus Optical Co., Ltd. Calculus crushing apparatus
US4807626A (en) * 1985-02-14 1989-02-28 Mcgirr Douglas B Stone extractor and method
US4893621A (en) * 1986-08-22 1990-01-16 Heyman Arnold M Slipover antegrade loading calculus extraction instrument system
US5365926A (en) * 1986-11-14 1994-11-22 Desai Jawahar M Catheter for mapping and ablation and method therefor
US5010894A (en) * 1988-01-07 1991-04-30 Edhag Knut O Intravascular electrode lead usable for cardiac defibrillation
US5011488A (en) * 1988-12-07 1991-04-30 Robert Ginsburg Thrombus extraction system
US4994079A (en) * 1989-07-28 1991-02-19 C. R. Bard, Inc. Grasping forceps
US5632746A (en) * 1989-08-16 1997-05-27 Medtronic, Inc. Device or apparatus for manipulating matter
US5421832A (en) * 1989-12-13 1995-06-06 Lefebvre; Jean-Marie Filter-catheter and method of manufacturing same
US5084054A (en) * 1990-03-05 1992-01-28 C.R. Bard, Inc. Surgical gripping instrument
US5290294A (en) * 1990-04-17 1994-03-01 Brian Cox Method and apparatus for removal of a foreign body cavity
US5171233A (en) * 1990-04-25 1992-12-15 Microvena Corporation Snare-type probe
US5171314A (en) * 1990-07-24 1992-12-15 Andrew Surgical, Inc. Surgical snare
US5098440A (en) * 1990-08-14 1992-03-24 Cordis Corporation Object retrieval method and apparatus
US5057114A (en) * 1990-09-18 1991-10-15 Cook Incorporated Medical retrieval basket
US5064428A (en) * 1990-09-18 1991-11-12 Cook Incorporated Medical retrieval basket
US5486183A (en) * 1990-10-09 1996-01-23 Raychem Corporation Device or apparatus for manipulating matter
US5147378A (en) * 1991-03-05 1992-09-15 Harold Markham Grapsing forceps
US5163942A (en) * 1991-12-09 1992-11-17 Everest Medical Corporation Surgical instrument with grasping loop for laparoscopic procedures
US5376100A (en) * 1991-12-23 1994-12-27 Lefebvre; Jean-Marie Rotary atherectomy or thrombectomy device with centrifugal transversal expansion
US5207686A (en) * 1992-04-15 1993-05-04 Stuart Dolgin Surgical snare
US5462553A (en) * 1992-04-15 1995-10-31 Dolgin; Stuart Surgical snare with a frangible loop
US5496330A (en) * 1993-02-19 1996-03-05 Boston Scientific Corporation Surgical extractor with closely angularly spaced individual filaments
US5417684A (en) * 1993-03-11 1995-05-23 Wilson Greatbatch Ltd. Laparoscopic surgical grasper with a loop with gripping formations
US5725525A (en) * 1993-03-16 1998-03-10 Ep Technologies, Inc. Multiple electrode support structures with integral hub and spline elements
US5647870A (en) * 1993-03-16 1997-07-15 Ep Technologies, Inc. Multiple electrode support structures
US5499981A (en) * 1993-03-16 1996-03-19 Ep Technologies, Inc. Flexible interlaced multiple electrode assemblies
US5823189A (en) * 1993-03-16 1998-10-20 Ep Technologies, Inc. Multiple electrode support structures with spline elements and over-molded hub
US6216044B1 (en) * 1993-03-16 2001-04-10 Ep Technologies, Inc. Medical device with three dimensional collapsible basket structure
US5693069A (en) * 1993-07-15 1997-12-02 Shallman; Richard W. Gallbladder stone extracting forceps for laparoscopic cholecystectomy
US5549661A (en) * 1993-10-15 1996-08-27 Ep Technologies, Inc. Systems and methods for creating complex lesion patterns in body tissue
US5454370A (en) * 1993-12-03 1995-10-03 Avitall; Boaz Mapping and ablation electrode configuration
US5403324A (en) * 1994-01-14 1995-04-04 Microsonic Engineering Devices Company, Inc. Flexible catheter with stone basket and ultrasonic conductor
US5397320A (en) * 1994-03-03 1995-03-14 Essig; Mitchell N. Dissecting surgical device and associated method
US5658296A (en) * 1994-11-21 1997-08-19 Boston Scientific Corporation Method for making surgical retrieval baskets
US6168603B1 (en) * 1995-02-02 2001-01-02 Boston Scientific Corporation Surgical extractor
US5613973A (en) * 1995-03-10 1997-03-25 Wilson Greatbatch Ltd. Laraposcopic surgical grasper having an attachable strap
US5810876A (en) * 1995-10-03 1998-09-22 Akos Biomedical, Inc. Flexible forceps device
US5846238A (en) * 1996-01-19 1998-12-08 Ep Technologies, Inc. Expandable-collapsible electrode structures with distal end steering or manipulation
US5853411A (en) * 1996-01-19 1998-12-29 Ep Technologies, Inc. Enhanced electrical connections for electrode structures
US5989266A (en) * 1997-02-24 1999-11-23 Foster; Thomas L. Medical device including basket
US6013086A (en) * 1997-08-28 2000-01-11 Asahi Kogaku Kogyo Kabushiki Kaisha Wire loop type instrument for endoscope
US6500182B2 (en) * 1998-03-27 2002-12-31 Cook Urological, Incorporated Minimally-invasive medical retrieval device
US6527781B2 (en) * 1998-04-23 2003-03-04 Scimed Life Systems Atraumatic medical retrieval device
US6224612B1 (en) * 1998-04-23 2001-05-01 Scimed Life Systems, Inc. Atraumatic medical retrieval device
US6368328B1 (en) * 1999-09-16 2002-04-09 Scimed Life Systems, Inc. Laser-resistant medical retrieval device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050119668A1 (en) * 2003-09-18 2005-06-02 Boston Scientific Scimed, Inc. Medical retrieval devices and methods
US8388630B2 (en) * 2003-09-18 2013-03-05 Boston Scientific Scimed, Inc. Medical retrieval devices and methods
US20080221587A1 (en) * 2007-03-09 2008-09-11 Jeremy Schwartz Two-stage snare-basket medical device
US20090157163A1 (en) * 2007-12-17 2009-06-18 Eric Cheng Retrieval device

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