Surgical and pharmaceutical site access guide and methods
First Claim
1. A system for diagnosing and treating a lesion inside a patient, comprising:
- a guide having a cannula having a first end and a second end and defining a lumen therebetween opening at an aperture at said second end, said cannula defining a lateral opening in communication with the lumen adjacent said first end, and a solid tip having an anatomically distal end secured to the first end of said cannula and a proximal end configured to pierce tissue; and
ablation means for ablating said lesion through said cannula.
2 Assignments
0 Petitions
Accused Products
Abstract
A guide (100) is provided for biopsy and microtherapy which includes an introducer cannula (120) defining a lumen (125) sized to receive a diagnostic or therapeutic item therethrough and a lateral opening (124) in communication with the lumen (125) adjacent the first end (121) of the cannula (120). The invention also includes a solid tip (130) having an anatomically distal end (131) secured to the first end (121) of the cannula (120) and a proximal end (132) configured to pierce tissue. A ramp (135) is disposed within the cannula (120) at an end (136) of the lateral opening (124) adjacent the first end (121) of the cannula (120). The ramp (135) is inclined toward the lateral opening (124), whereby the item will be deflected through the lateral opening (124) as it advances within the lumen (125) and exits the cannula (120). In some embodiments, the item is a biopsy needle, ablation means or a radiopharmaceutical seed. The invention also includes methods of obtaining a biopsy sample and methods for treating lesions.
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Citations
72 Claims
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1. A system for diagnosing and treating a lesion inside a patient, comprising:
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a guide having a cannula having a first end and a second end and defining a lumen therebetween opening at an aperture at said second end, said cannula defining a lateral opening in communication with the lumen adjacent said first end, and a solid tip having an anatomically distal end secured to the first end of said cannula and a proximal end configured to pierce tissue; and
ablation means for ablating said lesion through said cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for treating a lesion within a patient'"'"'s body, comprising:
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an introducer having a cannula having a first end and a second end and defining a lumen therebetween, the second end of the cannula defining an aperture, said cannula defining a lateral opening in communication with the lumen adjacent said first end, and a solid tip having an anatomically distal end secured to the first end of said cannula and a proximal end configured to pierce tissue; and
a radiopharmaceutical composition disposed within said cannula. - View Dependent Claims (13, 14, 15)
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16. A system for diagnosing a lesion within a patient'"'"'s body, comprising:
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an introducer having a cannula having a first end and a second end and defining a lumen therebetween, the second end of the cannula defining an aperture, said cannula defining a lateral opening in communication with the lumen adjacent said first end, and a solid tip having an anatomically distal end secured to the first end of said cannula and a proximal end configured to pierce tissue; and
a localization wire disposed within said cannula, said localization wire having a diameter that is smaller than a dimension of said lateral opening.
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17. A system for diagnosing a lesion within a patient'"'"'s body, comprising:
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an introducer having a cannula having a first end and a second end and defining a lumen therebetween, the second end of the cannula defining an aperture, said cannula defining a lateral opening in communication with the lumen adjacent said first end, and a solid tip having an anatomically distal end secured to the first end of said cannula and a proximal end configured to pierce tissue; and
a visualization agent disposed within said cannula. - View Dependent Claims (18, 19)
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20. A method of delivering therapeutic items to a pathological site inside a patient'"'"'s body, comprising:
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providing a guide introducer, said introducer having a cannula having a first end and a second end and defining a lumen therebetween;
a tip disposed at the first end of the cannula and closing the lumen at the first end;
the lumen having an aperture at the second end of the cannula, the aperture sized and configured to receive an item; and
the cannula defining a lateral opening in communication with the lumen, the lateral opening sized and configured to allow exit of the item from the lumen;
inserting the introducer into the patient at the site;
inserting a first item through the aperture and into the lumen;
advancing the first item through the lumen and out through the lateral opening at an angle relative to the introducer and into the site; and
rotating the introducer after advancing the first item through the lumen;
inserting a second item through the aperture and into the lumen; and
advancing the second item through the lumen and out through the lateral opening at the same angle relative to the introducer to place the item at a location eccentric from the first site. - View Dependent Claims (21)
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22. A method for treating a lesion inside a patient'"'"'s body, comprising:
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providing an access guide introducer, the introducer having a cannula having a first end and a second end and defining a lumen therebetween the lumen opening at an aperture at the second end, a tip disposed at the first end of the cannula and closing the lumen at the first end, and the cannula defining a lateral opening in communication with the lumen, inserting the introducer into the patient near the lesion;
manipulating the introducer to place the lateral opening adjacent the lesion; and
advancing an ablating chemical composition through the lumen and out through the lateral opening to contact the lesion with the composition.
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23. A method for diagnosing and treating a lesion inside a patient'"'"'s body, comprising:
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providing an access guide introducer, the introducer having a cannula having a first end and a second end and defining a lumen therebetween, the lumen opening at an aperture at the second end, a tip disposed at the first end of the cannula and closing the lumen at the first end, and the cannula defining a lateral opening in communication with the lumen;
inserting the introducer into the patient near the lesion;
manipulating the introducer to place the lateral opening adjacent the lesion;
inserting a biopsy needle having an anatomically proximal end and a distal end through the aperture and into the lumen;
advancing the biopsy needle through the lumen so that the proximal end of the biopsy needle projects through the lateral opening at an angle relative to the introducer and into a first lesion site to obtain a first biopsy sample;
withdrawing the proximal end of the biopsy needle from the first site and into the lumen of the introducer; and
advancing an ablating chemical composition through the lumen and out through the lateral opening to contact the lesion with the composition. - View Dependent Claims (24, 25)
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26. A biopsy needle introducer, comprising:
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a cannula having a first end and a second end and defining a lumen therebetween, the lumen sized to receive a biopsy needle therethrough;
the second end of the cannula defining an aperture, the aperture sized and configured to receive a biopsy needle for passage into the lumen;
said cannula defining a lateral opening in communication with the lumen adjacent said first end, the lateral opening sized and configured to allow exit of an anatomically proximal end of the biopsy needle from the lumen; and
a solid tip having an anatomically distal end secured to the first end of said cannula and a proximal end configured to pierce tissue. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A biopsy device, comprising:
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an introducer including a cannula having a first end and a second end and defining a lumen therebetween, a tip disposed at the first end of the cannula and closing the lumen, the cannula defining an aperture at the second end of the cannula, the aperture sized and configured to receive a biopsy needle, and said cannula defining a lateral opening in communication with the lumen adjacent said first end, the lateral opening sized and configured to allow exit of a biopsy needle from the lumen; and
a hollow biopsy needle having an anatomically proximal end and a distal end, said needle sized and configured to be movably and rotatably received within the lumen, the proximal end sized and configured to exit from said lumen through the lateral opening and having an edge to pierce tissue to obtain a biopsy sample when the biopsy needle is advanced into the tissue. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A biopsy needle introducer, comprising:
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a cannula having a first end and a second end and defining a lumen therebetween, the lumen sized to receive a biopsy needle therethrough;
the second end of the cannula defining an aperture, the aperture sized and configured to receive a biopsy needle;
a hub attached to the second end of the cannula, said hub including a gripping portion configured to be held when inserting and positioning the introducer, said hub defining a channel having a first end and a second end, the first end of the channel in communication with the aperture for delivering a biopsy needle to the cannula; and
a flange projecting from said hub at a location anatomically distal from the gripping portion, said flange configured to prevent inadvertent needle sticks when a biopsy needle is inserted into the introducer. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57)
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58. A method of obtaining a biopsy sample, comprising:
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providing a biopsy introducer, said introducer having a cannula having a first end and a second end and defining a lumen therebetween;
a tip disposed at the first end of the cannula and closing the lumen at the first end;
the lumen having an aperture at the second end of the cannula, the aperture sized and configured to receive a biopsy needle;
the cannula defining a lateral opening in communication with the lumen, the lateral opening-sized and configured to allow exit of a biopsy needle from the lumen; and
a ramp disposed within said cannula at an end of the lateral opening adjacent the first end of the cannula, the ramp being inclined toward the lateral opening, whereby a biopsy needle will be deflected through the lateral opening as it exits the cannula;
inserting the introducer into the patient at the biopsy site;
inserting a biopsy needle having an anatomically proximal end and a distal end through the aperture and into the lumen;
advancing the biopsy needle through the lumen so that the proximal end of the biopsy needle projects through the lateral opening at an angle relative to the introducer and into a first biopsy sample site to obtain a first biopsy sample; and
withdrawing the proximal end of the biopsy needle from the first biopsy sample site and into the lumen of the introducer. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67)
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68. A method of making a biopsy device, comprising:
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providing a hollow cannula defining a lumen sized to receive a biopsy needle and a lateral opening at a first end of the cannula, the lateral opening in communication with the lumen, the lateral opening sized and configured to allow exit of an anatomically proximal end of the biopsy needle from the lumen;
attaching a hub to the second end of the cannula, the hub defining a channel in communication with the lumen; and
securing an anatomically distal end of a solid tip to the first end of the cannula, the tip having a proximal end configured to pierce tissue, the distal end of the tip being sloped to form a ramp adjacent to and inclined proximally toward said lateral opening, whereby a biopsy needle will be deflected as it advances through the lumen and exits the cannula through the lateral opening. - View Dependent Claims (69, 70, 71, 72)
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Specification