Endoscope for treatment of prostate
First Claim
1. An endoscopic instrument apparatus for use in treating a patient'"'"'s prostate, said prostate having an interior wall defining a prostatic urethra, comprising:
- means for spreading said prostatic urethra and defining an open space within said prostatic urethra; and
means for placing a laterally transmitting laser fiber tip within said open space with said tip spaced laterally from a portion of said interior wall so that a beam of laser light may be transmitted laterally from said tip to said portion of said interior wall without touching said interior wall with said tip; and
wherein said means for spreading includes a rigid outer sheath constructed to be received through the patient'"'"'s urethra, said outer sheath having a distal end portion constructed to be received in the patient'"'"'s prostatic urethra and to hold said prostatic urethra open and define said open space at least partially within said outer sheath, said outer sheath having an open lateral window defined therein communicating said open space with said prostatic urethra.
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Accused Products
Abstract
An endoscopic instrument includes a rigid outer sheath having an inner sheath received therein. The outer sheath has a lateral window defined therein near a closed distal end of the outer sheath. The inner sheath carries a telescope and a laterally transmitting laser fiber tip. The laser fiber tip may be extended to a position laterally adjacent the open window while the telescope remains located proximal relative to the tip and the window, so that the tip and the tissue to be treated may be observed with the telescope while both the telescope and the tip remain within the outer sheath.
98 Citations
19 Claims
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1. An endoscopic instrument apparatus for use in treating a patient'"'"'s prostate, said prostate having an interior wall defining a prostatic urethra, comprising:
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means for spreading said prostatic urethra and defining an open space within said prostatic urethra; and means for placing a laterally transmitting laser fiber tip within said open space with said tip spaced laterally from a portion of said interior wall so that a beam of laser light may be transmitted laterally from said tip to said portion of said interior wall without touching said interior wall with said tip; and wherein said means for spreading includes a rigid outer sheath constructed to be received through the patient'"'"'s urethra, said outer sheath having a distal end portion constructed to be received in the patient'"'"'s prostatic urethra and to hold said prostatic urethra open and define said open space at least partially within said outer sheath, said outer sheath having an open lateral window defined therein communicating said open space with said prostatic urethra. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An endoscopic instrument apparatus, comprising:
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a hollow rigid outer sheath having a distal portion with a distal end, said distal portion having a hollow space defined therein adjacent said distal end and having a lateral window defined therein communicating said hollow space with an exterior of said outer sheath; an inner sheath having a laterally enclosed outer wall complementary to and closely received within said outer sheath, said inner sheath being so arranged and constructed that said inner sheath and everything contained therein may be withdrawn from said outer sheath while leaving said outer sheath in place within a patient'"'"'s body, said inner sheath having defined therein; a tip passage for receiving a laterally transmitting laser fiber tip; a telescope passage; an irrigating fluid supply passage; and an irrigating fluid return passage; wherein said inner sheath has a distal end which terminates short of said window; and wherein said tip passage, said telescope passage, said supply passage and said return passage all have open distal ends communicated with said hollow space of said outer sheath. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. An endoscopic instrument apparatus for use in treating a patient'"'"'s prostate, said prostate having an interior wall defining a prostatic urethra, comprising:
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means for spreading said prostatic urethra and defining an open space within said prostatic urethra; and means for placing a laterally transmitting laser fiber tip within said open space with said tip spaced laterally from a portion of said interior wall so that a beam of laser light may be transmitted laterally from said tip to said portion of said interior wall without touching said interior wall with said tip; wherein said means for spreading includes a rigid outer sheath constructed to be received through the patient'"'"'s urethra, said outer sheath having a distal end portion constructed to be received in the patient'"'"'s prostatic urethra and to hold said prostatic urethra open and define said open space at least partially within said outer sheath, said outer sheath having a lateral window defined therein communicating said open space with said prostatic urethra; wherein said means for placing includes an inner assembly closely received in said outer sheath, said inner assembly being so arranged and constructed that said inner assembly and everything contained therein may be withdrawn from said outer sheath while leaving said outer sheath in place within the patient'"'"'s urethra and the patient'"'"'s prostatic urethra; and said inner assembly has an open distal end which communicates with said open space.
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Specification