METHODS AND APPARATUS FOR SECURING MEDICAL INSTRUMENTS TO DESIRED LOCATIONS IN A PATIENT'S BODY

• US 20120277626A1
• Filed: 07/06/2012
• Published: 11/01/2012
• Est. Priority Date: 09/01/1998
• Status: Active Grant

• Current Assignee: Senorx Incorporated (Becton, Dickinson & Co)
• Original Assignee: Senorx Incorporated (Becton, Dickinson & Co)
• Inventors: Burbank, Fred H., Lubock, Paul, Jones, Michael L., Quick, Richard L.
• Granted Patent: US 9,216,012 B2
• Time in Patent Office: Days
• US Class Current: 600/567
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 10/0241 for prostate
• CPC Class Codes: A61B 10/0266 means for severing sample
• CPC Class Codes: A61B 10/04 Endoscopic instruments
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 17/32056 Surgical snare instruments for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 18/12 by passing a current through the tissue to be heated, e.g. high-frequency current
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 18/1487 Trocar-like, i.e. devices producing an enlarged transcutaneous opening
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2017/320064 with tissue or sample retaining means
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61B 2018/00208 actively driven, e.g. by a motor
• CPC Class Codes: A61B 2018/00214 Expandable means emitting energy, e.g. by elements carried thereon
• CPC Class Codes: A61B 2018/00267 having a basket shaped structure
• CPC Class Codes: A61B 2018/00333 Breast
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00601 : Cutting
• CPC Class Codes: A61B 2018/00898 : Alarms or notifications created in response to an abnormal condition
• CPC Class Codes: A61B 2018/0091 : Handpieces of the surgical instrument or device
• CPC Class Codes: A61B 2018/00916 : with means for switching or controlling the main function of the instrument or device
• CPC Class Codes: A61B 2018/1253 : monopolar
• CPC Class Codes: A61B 2018/126 : bipolar
• CPC Class Codes: A61B 2018/1407 : Loop
• CPC Class Codes: A61B 2018/1425 : Needle
• CPC Class Codes: A61B 2018/1475 : Electrodes retractable in or deployable from a housing
• CPC Class Codes: A61B 2018/162 : located on the probe body
• CPC Class Codes: A61B 2090/3908 : Soft tissue, e.g. breast tissue
• CPC Class Codes: A61B 2090/3987 : Applicators for implanting markers
• CPC Class Codes: A61B 2090/3991 : having specific anchoring means to fixate the marker to the tissue, e.g. hooks
• CPC Class Codes: A61B 90/17 : for soft tissue, e.g. breast-holding devices
• CPC Class Codes: A61B 90/37 : Surgical systems with images on a monitor during operation
• CPC Class Codes: A61B 90/39 : Markers, e.g. radio-opaque or breast lesions markers

Abstract

A medical device for localization of tissue at a target site in a patient'"'"'s body includes a tube having a distal end, a proximal end, and a longitudinal axis. The medical device is configured for placement of the distal end at the target site. A fixation device is disposed on the distal end. The affixation device is configured to mechanically fix the distal end of the medical device to tissue at the target site.

Claims

1. A medical device for localization of tissue at a target site in a patient'"'"'s body, comprising:

a tube having a distal end, a proximal end, and a longitudinal axis, the medical device being configured for placement of said distal end at the target site; and

a fixation device disposed on said distal end, the fixation device being configured to mechanically fix the distal end of said medical device at the target site without penetrating tissue surrounding the target site.

49. The medical device of claim 1, wherein the fixation device is a Mallicot structure having a plurality of expandable elongate bands arranged circumferentially around the longitudinal axis.

50. The medical device of claim 49, further comprising a plurality of actuating pushrods arranged circumferentially with respect to the longitudinal axis and configured to actuate the plurality of expandable elongate bands between the retracted configuration and the expanded configuration.

51. The medical device of claim 49, wherein each of the plurality of expandable elongate bands is contracted to provide a radial expansion of the Mallicot structure.

52. The medical device of claim 1, wherein the fixation device is a radially expandable linkage having a plurality of linkage elements and a plurality of linkage pivot points.

53. The medical device of claim 1, wherein the fixation device is a radially expandable basket structure formed by a plurality of longitudinally extending curved elements arranged circumferentially around the longitudinal axis.

2-48. -48. (canceled)

54. A medical device for localization of tissue at a target site in a patient'"'"'s body, comprising:

a tube having a distal end, a proximal end, and a longitudinal axis, with the distal end being configured for placement at the target site; and

a fixation device disposed on the distal end, the fixation device being configured to have a retracted configuration and an expanded configuration, the fixation device having a plurality of expandable elongate bands arranged circumferentially around the longitudinal axis, and at least one of the plurality of expandable elongate bands having a protruding portion that cantilevers outwardly from a portion of a respective elongate band of the plurality of expandable elongate bands when the plurality of expandable elongate bands is in the expanded configuration.

55. A medical device, comprising:

an elongated shaft which has a tissue penetrating distal tip, a distal shaft portion proximal to the distal tip and a proximal shaft portion, with the tissue penetrating distal tip configured to pass through tissue to facilitate placement of the distal shaft portion into a patient'"'"'s body at a desired target site;

a fixation device coupled to the distal shaft portion which has a retracted configuration and an expanded configuration, and configured to be deployed into tissue at the target site in the retracted configuration and then expanded to the expanded configuration to facilitate securing the distal shaft portion to tissue at the target site;

a pusher element on the distal shaft portion configured to change the fixation device from the retracted configuration to the expanded configuration.

56. The medical device of claim 55, wherein the tissue penetrating distal tip has an electrosurgical cutting element to facilitate tissue penetration to the target site.

57. The medical device of claim 56, wherein the electrosurgical cutting element is configured to be electrically connected to a RF energy source.

58. The medical device of claim 56, wherein the electrosurgical cutting element is spaced distal to the distal tip.

59. The medical device of claim 55, wherein the distal shaft portion has a radially expandable, longitudinally oriented tissue cutting element having a first unexpanded configuration for delivery and a second radially expanded configuration for cutting a tissue sample from target tissue that expands beyond the fixation device.

60. The medical device of claim 59, wherein the tissue cutting element is configured to rotate about a longitudinal axis of the elongated shaft to sever tissue from the tissue site.

61. The medical device of claim 59, wherein the longitudinally oriented tissue cutting element in the retracted configuration is seated within a slot provided in the distal shaft portion.

62. The medical device of claim 55, wherein the fixation device is a Mallicot structure having a plurality of expandable elongate bands arranged circumferentially with respect to the elongated shaft.

63. The medical device of claim 62, further comprising a plurality of actuating pushrods arranged circumferentially with respect to the elongated shaft and configured to actuate the plurality of expandable elongate bands between the retracted configuration and the expanded configuration.

64. The medical device of claim 62, wherein at least one of the plurality of expandable elongate bands has a protruding portion that cantilevers outwardly from a portion of a respective elongate band of the plurality of expandable elongate bands when the plurality of expandable elongate bands is in the expanded configuration.

65. The medical device of claim 62, wherein each of the plurality of expandable elongate bands has a protruding portion that cantilevers outwardly from a portion of a respective elongate band of the plurality of expandable elongate bands when the plurality of expandable elongate bands is in the expanded configuration.

66. The medical device of claim 55, wherein the fixation device is configured to mechanically fix the distal tip of the medical device at the target site without penetrating tissue surrounding the target site.

67. The medical device of claim 55, wherein the fixation device is a radially expandable structure formed by a plurality of longitudinally extending curved elements arranged circumferentially around a longitudinal axis of the elongated shaft.