WO1995006429A1 - Cystoscope jetable - Google Patents

Cystoscope jetable Download PDF

Info

Publication number
WO1995006429A1
WO1995006429A1 PCT/US1994/009816 US9409816W WO9506429A1 WO 1995006429 A1 WO1995006429 A1 WO 1995006429A1 US 9409816 W US9409816 W US 9409816W WO 9506429 A1 WO9506429 A1 WO 9506429A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular member
optics
disposable
scope system
inner tubular
Prior art date
Application number
PCT/US1994/009816
Other languages
English (en)
Inventor
Zeev Sohn
Original Assignee
Zeev Sohn
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zeev Sohn filed Critical Zeev Sohn
Priority to AU76784/94A priority Critical patent/AU7678494A/en
Publication of WO1995006429A1 publication Critical patent/WO1995006429A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes

Definitions

  • This invention is directed to a novel cystoscope. More particularly, this invention is directed to a disposable cystoscope having a removable sheath.
  • Cystoscopy and endoscopy are common daily practices of physicians. These short time procedures require substantial time intervals between procedures for cleaning the parts, such as disinfection with liquids (for example, "Cidex”) or heat and gas disinfection or sterilization techniques which may take even longer.
  • disinfection with liquids for example, "Cidex”
  • heat and gas disinfection or sterilization techniques which may take even longer.
  • the problem with cleaning or sterili-zation is not limited just to the time required, but also involves the fact that cystoscope and endoscope lumens and valves do not always sterilize effectively, leaving the possibility of cross-contamination.
  • cysto ⁇ scope/endoscope apparatus which permits the use of most cystoscopic accessories, having the optics of a multi-use product, but need not be sterilized. Also, such a system should have a large inner lumen for rapid water and particle removal from the body.
  • the system has a large lumen for water irrigation and evacuation, and the device has a rigid structure to support rigid optics or a flexible structures for flexible optics.
  • the cystoscope and endoscope of the invention comprises a rigid, elongate, substantially cylindrical, external tube and an inner semi-rigid tube into which the multi-use optics is inserted.
  • Concentrically fitting around the outer surface of said innter tube is an outer cylindrical rigid sheath open at at least its distal end and having one or more ports for infusion or withdrawal of liquid.
  • the distal end of the multi-use optics member has a standard slant of 0°, 30°, 70°, etc.
  • the inner tube has a transparent distal tip that is spatially compatible with the slant of the multi-use optics member.
  • Potentially one inner tube fits optics of 0° and 30° slant.
  • the optics are isolated from the outside by the thin wall semi-rigid tube having its distal end closed with a trans-parent material so that the optics has no contact with the outside environment, eliminating the need to sterilize the optics from one patient to another.
  • the optics proximal part can optionally be covered by a flexible (nylon) bag to isolate it from contact with the physician or optionally the patient.
  • the fiber optic light cable source can be covered with the same system.
  • the invention relates also to a small, rechargeable, battery-operated light source, which is mounted directly on the optics preventing the need for an external fiber optic light source.
  • Fig. 1 is a longitudinal cross-sectional view of an embodiment of the invention
  • Fig. 2 is a cross-sectional view along the line 2-2 in the embodiment shown in Fig. 1;
  • Fig. 3 is a longitudinal cross-sectional view of the blind insertion phase of the invention.
  • Fig. 4 is a view of the rechargeable small light source.
  • the cystoscope of the invention comprises two disposable parts: inner tube 1 and outer tube 2.
  • Inner tube 1 is a semi-rigid thin wall tube that is closed at its distal end.
  • the internal diameter of inner tube 1 is slightly
  • RECTIF ⁇ ED SHEET (RULE 91) larger than the external diameter of the distal portion of optics member 6, to permit insertion and removal of optics member 6 without creating significant vacuum or pressure within the annular space 3 between inner tube 1 and optics member 6.
  • the outer tube 2 is a rigid tube that supports the rigid optics member 6 against bending and breaking. It allows water irrigation and instrumentation required of medical procedures to be carried out through the annular space created between the two disposable tubes 1 and 2.
  • the outer tube 2 can optionally have an elliptical cross- section to permit more space for instrumentation, if needed.
  • the distal tip of outer tube 2 has a preferably rounded projection 10 to ensure smooth passage through the urethra, with minimal trauma to the urethral wall.
  • the distal end of inner tube 1 should have an angular slant to match the slant of the distal end of optics member 6. Such angles are usually 0°, 30°, or 70°.
  • the proximal portions of tubes 1 and 2 are sealingly attached to locking members 4 and 5, respectively, which seal the lumens of tubes 1 and 2 from water or air leakage and which form a passageway to port 11 for annular space 9.
  • the system here enables (1) sliding of inner tube 1 out with optics member 6, leaving outer tube 2 in the body, or (2) sliding optics member 6 out, leaving tubes 1 and 2 in the body (for the changing of the optics without changing the inner tube) .
  • Adapter 8 fits into the proximal surface of locking member 4 and is intended to cooperate with the proximal portion 12 of optics member 6.
  • Adapter 8 varies according the optics member 6 being used, which permits the scope of the invention to be compatible with the optics of different companies, such as STORZ, OLYMPUS, CIRCON, and the like.
  • outer tube 2 is shown with an oval cross-section, where portions of the annular space " 9 between the inner tube 1 and outer tube 2 will be large. This will enable insertion of additional instrumentation during cystoscopy or endoscopy (such as ureter catheter insertion, biopsy forceps procedures, etc.).
  • the disposable mandrel 19 shown in Fig. 3 fits into the internal lumen of outer tube 2 for easy blind insertion of the cystoscope. Then, once outer tube 2 is in position, mandrel 19 would be removed and inner tube 1 followed by optics member 6, or inner tube 1 and optics member 6 together, would be inserted. In this way the optics member with the inner tube is inserted after the outer tube is inside the body.
  • the invention described herein is not limited to cystoscopies.
  • the invention can be used in devices for transurethral resection of prostate as well as any endoscopy using rigid or flexible optics and/or a camera.
  • optics member 6 can optionally comprise a proxi ally positioned, rechargeable, battery- operated, small light source with no externally- connecting wire or fiber optics.
  • Lamp body 12 has a shape to fit the optics connector to the fiberoptic.
  • Switch 15 opens lamp 14 which gets its energy from batteries 13. This would make the cystoscope/endoscope operation easier to perform since there would not be a fiber optic cable to disturb the physician's maneuvers.
  • a small battery-operated light source could thus replace the conventional external high-intensity light source.
  • a rechargeable, optics-mounted light source there is no need for fiber optics to transmit the light from an external light source, resulting in less light dispersion, and less energy needed for the optic mounted light source.
  • Optional protective flexible sleeve 7 is comprised of a polymer bag extending from an annular ring 16 located in a space or groove between locking members 4 and 5. Also sleeve 7 permits a sterile field when no sterile optics, fiber optic cable, small mounted light source or camera are used.
  • Inner tube 1 and outer tube 2 are comprised of sterilizable, physiologically acceptable rigid or semi ⁇ rigid materials.
  • polymeric material such as polymers or co-polymers of polyethylene, polybutylene, polypropylene, polyurethane or even fiberglass-epoxy composite materials are used.
  • Locking members 4 and 5, which should be rigid, could be comprised of similar material.
  • Inner tube 2 may be continuously one material or even two materials, so long as the distal end of inner tube 2 is optically clear. .
  • the interior space between the distal end of inner tube 2 and the optics member 6 blunt can be filled potentially with an optical gel to minimize the reflection of light between the two components.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Urology & Nephrology (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)

Abstract

Cette invention concerne un appareil d'endoscopie et/ou de cystoscopie flexible ou rigide comprenant au moins deux tubes (1, 2) fonctionnant l'un dans l'autre; et entre lesquels un espace (3) permet la circulation de l'eau et/ou de l'air. Le tube interne (1) est fermé par un matériau transparent au niveau de son extrémité distale et possède une lumière interne afin de permettre à un tube optique (6) de coulisser en dedans et au dehors, avant, pendant et après l'intervention chirurgicale.
PCT/US1994/009816 1993-09-02 1994-09-01 Cystoscope jetable WO1995006429A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU76784/94A AU7678494A (en) 1993-09-02 1994-09-01 Disposable cystoscope

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL106868A IL106868A0 (en) 1993-09-02 1993-09-02 Disposable cystoscope
IL106868 1993-09-02

Publications (1)

Publication Number Publication Date
WO1995006429A1 true WO1995006429A1 (fr) 1995-03-09

Family

ID=11065222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/009816 WO1995006429A1 (fr) 1993-09-02 1994-09-01 Cystoscope jetable

Country Status (3)

Country Link
AU (1) AU7678494A (fr)
IL (1) IL106868A0 (fr)
WO (1) WO1995006429A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026234A1 (de) * 2007-05-31 2008-12-04 Karl Storz Gmbh & Co. Kg Videoendoskop
WO2011066760A1 (fr) * 2009-12-02 2011-06-09 武汉佑康科技有限公司 Endoscope flexible et rigide combiné

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110226912A (zh) * 2019-07-25 2019-09-13 常州市第一人民医院 一种便携可视尿路检查治疗装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4254762A (en) * 1979-10-23 1981-03-10 Inbae Yoon Safety endoscope system
US4567880A (en) * 1984-12-26 1986-02-04 Goodman Tobias M Endoscopic device with three-way valve
US4712536A (en) * 1987-01-20 1987-12-15 Hawks Robert A Rectal speculum with obturator
US4878485A (en) * 1989-02-03 1989-11-07 Adair Edwin Lloyd Rigid video endoscope with heat sterilizable sheath
US5320091A (en) * 1992-04-27 1994-06-14 Circon Corporation Continuous flow hysteroscope

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4254762A (en) * 1979-10-23 1981-03-10 Inbae Yoon Safety endoscope system
US4567880A (en) * 1984-12-26 1986-02-04 Goodman Tobias M Endoscopic device with three-way valve
US4712536A (en) * 1987-01-20 1987-12-15 Hawks Robert A Rectal speculum with obturator
US4878485A (en) * 1989-02-03 1989-11-07 Adair Edwin Lloyd Rigid video endoscope with heat sterilizable sheath
US5320091A (en) * 1992-04-27 1994-06-14 Circon Corporation Continuous flow hysteroscope

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026234A1 (de) * 2007-05-31 2008-12-04 Karl Storz Gmbh & Co. Kg Videoendoskop
WO2011066760A1 (fr) * 2009-12-02 2011-06-09 武汉佑康科技有限公司 Endoscope flexible et rigide combiné

Also Published As

Publication number Publication date
AU7678494A (en) 1995-03-22
IL106868A0 (en) 1993-12-28

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