Biopsy sampler
First Claim
1. An assembly for taking a biopsy sample from a site within the body of a patient, comprising:
- a resecting device including a cutter near its distal end for resecting a tissue sample, anda sheath exterior to said resecting device and sized to be present within the body with said resecting device, said sheath including an electrode element electrically isolated from said cutter and disposed on said sheath'"'"'s outer surface for cauterizing tissue, and said resecting device and sheath being cooperatively constructed to permit spatial separation between said cutter and said electrode element,said cutter being constructed to hold said tissue sample stationary in a fixed position spaced from said electrode element and to avoid heat damage to said tissue sample held stationary in said fixed position while said electrode element cauterizes said site.
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Accused Products
Abstract
The invention features an assembly for taking a biopsy sample from a site within the body of a patient. The assembly includes a resecting device having a cutter near its distal end for resecting and containing a tissue sample and a sheath exterior to the resecting device and sized to be present within the body with the resecting device. The sheath includes an electrode element electrically isolated from the resecting device and disposed on the sheath'"'"'s outer surface for cauterizing tissue. The resecting device and the sheath cooperate to permit sequential resecting of a tissue sample from a resecting site and cauterizing of the site with the cutter sufficiently spaced from the electrode element to avoid heat damage to the tissue sample.
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Citations
22 Claims
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1. An assembly for taking a biopsy sample from a site within the body of a patient, comprising:
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a resecting device including a cutter near its distal end for resecting a tissue sample, and a sheath exterior to said resecting device and sized to be present within the body with said resecting device, said sheath including an electrode element electrically isolated from said cutter and disposed on said sheath'"'"'s outer surface for cauterizing tissue, and said resecting device and sheath being cooperatively constructed to permit spatial separation between said cutter and said electrode element, said cutter being constructed to hold said tissue sample stationary in a fixed position spaced from said electrode element and to avoid heat damage to said tissue sample held stationary in said fixed position while said electrode element cauterizes said site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 22)
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15. An assembly for taking a biopsy sample from a site within the body of a patient, comprising:
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a resecting device including forceps near its distal end for resecting and containing a tissue sample, and a sheath exterior to said resecting device and sized to be present within the body with said resecting device and including a lumen sized to slidably receive said resecting device, said sheath including an electrode element electrically isolated from said resecting device and disposed on said sheath'"'"'s outer surface for cauterizing tissue, and said resecting device and sheath being cooperatively constructed to permit sequential resecting of a tissue sample from a resecting site and cauterizing of said site with said forceps spaced from said electrode element in a fixed position and to avoid heat damage to said tissue sample while said site is cauterized and said forceps holds said tissue sample stationary in said fixed position.
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16. An assembly for taking a biopsy sample from a site within the body of a patient, comprising:
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a resecting device including forceps near its distal end for resecting and containing a tissue sample, and a sheath exterior to said resecting device and sized to be present within the body with said resecting device, wherein said sheath and resecting device are constructed as a unitary device and wherein said forceps extend distally of the termination of said sheath, said sheath including an electrode element electrically isolated from said resecting device, spaced proximally to said forceps, and disposed on said sheath'"'"'s outer surface for cauterizing tissue, and said resecting device and sheath cooperatively constructed to permit sequential resecting of a tissue sample from a resecting site and cauterizing of said site with said forceps spaced from said electrode element in a fixed position and to avoid heat damage to said tissue sample while said site is cauterized and said forceps holds said tissue sample stationary in said fixed position.
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Specification