117 results about "Rigid endoscope" patented technology

An endoscopic fastening assembly having a diameter sufficiently small so that the fastening assembly is slidably insertable into a working channel of a flexible or rigid endoscope for performing a fastening operation, comprises one or more surgical anchors within an elongated tubular member configured for delivery and deployment of said anchors. One or more anchors being disposed in a substantially closed pre-deployment configuration inside the tubular body are configured for being delivered and deployed into a target tissue while remaining in a substantially closed configuration, and assuming its open anchoring properties only once embedded in tissue.

An endoscopic tissue resection device and related method is used in conjunction with a flexible or rigid endoscope. Tissue is resected by shaving thin layers of tissue for diagnostic and therapeutic purposes.

An endoscopic apparatus has an objective optical system arranged in a rigid endoscope for forming an image, a first image re-forming optical system for re-forming a part of the image once formed through the objective optical system on an image pickup surface of a first CCD camera and a second image re-forming optical system which re-forms an image once formed through an objective optical system on an image pickup surface of a second CCD camera. A second monitor displays the image picked up by the second CCD camera added with a rectangular frame indicating size and amplitude of the area corresponding to the image picked up by the first CCD camera.

A cleaning device for cleaning an observation window (25) installed to an insertion section (2) of a rigid endoscope (1) is equipped with a nozzle (21) to spray selectively cleaning liquid and a pressurized CO₂ gas against the observation window (25), internal conduits (23, 24) through which the cleaning liquid and the CO₂ gas are supplied to the nozzle (21) and external conduits (90,30; 40) detachably connected to the internal conduits (23, 24), respectively, so as to distribute the cleaning liquid and the CO₂ gas into the internal conduits (23, 24), respectively, from a liquid container (60) and a gas container (89) respectively. The gas supply external conduit (40) has a flow path diameter smaller than the liquid supply external conduit (30).

A three part microendoscope system including a cannula, a dilator, and endoscopic insert for detection of breast cancer are disclosed. To facilitate surgical entry of an endoscope system through the sphincter of a breast, a special dilator is used with an endoscope so that the endoscope can more readily pass through tortuous passageways. In accordance with the present invention, a semi-rigid endoscope can be advanced through the sphincter in the nipple using a nipple dilator. The microendoscope uses a special lumen tube that is usable with various insertable tools that allows for minimal invasive damage to surrounding cells. Insertable tools to irrigate, lavage, or perform biopsies on targeted areas of the breast are disclosed. A novel video coupler having a predetermined focus and orientation to be used with the present system is also disclosed. A method of using the three part microendoscope system and its various insertable tools are disclosed. A method of manufacturing the video coupler is disclosed.

The invention is a sideways looking video endoscope which offers a rigid endoscope tube. The optical system has one prism, and an image sensor located behind the optical system, provided on the distal end of the endoscope shaft. On the proximal end of the shaft, a knurled wheel is arranged so as to rotate freely. This wheel is provided with permanent magnets that are arranged at identical angular separations, and associated with Hall sensors located on the front face of the tool holder. The angular position of the rotatable wheel can thus be detected by means of the Hall sensors together with an electronic system that evaluates the signals, and displayed on a monitor. By turning the rotating wheel, the image can be rotated, thus correcting the image position when the endoscope is rotated, such that the viewing direction corresponds to the actual position of the object.

A cleaning nozzle is formed at a leading end face of a rigid-endoscope oversheath to cover a rigid endoscope. The cleaning nozzle is connected with a flow path formed in the oversheath so that fluid flowing through the flow path is ejected from an ejection port. The side surfaces of the cleaning nozzle are composed of a relatively hard material, while the upper surface is composed of a relatively soft material. When the flow rate of the fluid ejected from the ejection port is high, the upper surface of the ejection port is widened upward and thereby the direction of ejection of the fluid also changes. The direction of ejection of the fluid can thus be changed by controlling the flow rate.

An aim is to provide an imaging apparatus that can reduce the size without being constrained by the size of a mechanism that drives the apparatus, and can accurately move a field of view over a wide range in a narrow space. The apparatus includes an image-wise light receiving means, a spherical housing that holds therein the image-wise light receiving means, a base that supports the spherical housing and enables the spherical housing to freely move along a surface thereof, a drive wire having an end fixed to the spherical housing, and a drive section to which the other end of the drive wire is fixed to drive the free movement of the spherical housing via the drive wire.

The invention discloses a non-spherical lens rigid endoscope which comprises an ocular lens system, a microscope base system and an objective lens system, wherein the ocular lens system is connected with the microscope base system which is connected with the objective lens system, the ocular lens system is provided with an ocular lens hood, an eye end protective sheet, a protective sheet pressure ring, a first ocular lens sleeve, an ocular lens space ring, a second ocular lens sleeve, a non-spherical lens 1, a non-spherical lens 2, a non-spherical lens 3 and a non-spherical lens 4; the ocular lens hood is used as a base in the ocular lens system, the protective sheet pressure ring is connected with the ocular lens hood and presses the eye end protective sheet, the inner cavity of the ocular lens hood is provided with the first ocular lens sleeve and the second ocular lens sleeve, the inside of the second ocular lens sleeve is provided with an ocular lens diaphragm, and a rodlike lens set is arranged between the objective lens system and the ocular lens system and comprises two same rodlike lenses and concave lenses arranged at two ends of each rodlike lens. The invention has the advantages of reasonable structural design and good operation use effect, can be sterilized and disinfected under the conditions of high temperature and high pressure of 0.2bar/134 DEG C, avoids cross-infection, lowers the use cost, and is convenient and safe.

A rigid endoscope (1) including a fiber optics (12) running within a guide tube (5) that is rigidly connected to the endoscope (1), an objective (14) mounted in the guide tube in front of a distal end of the fiber optics, and an ocular (22) mounted in front of the fiber optics' proximal end. The fiber optics (12) rests in an axially displaceable manner in the guide tube (5) and is detachably affixed by its proximal end (15) to the endoscope (8).

The invention relates to a pre-cleaning and moisturizing agent suitable for medical apparatuses, and preparation method thereof. The invention is characterized in that the pre-cleaning and moisturizing agent for the medical apparatuses is composed of a surfactant, a corrosion inhibitor, a humectant, protease, lipase, starch powder, cellulase, an osmotic agent and an enzyme stabilizer. The pre-cleaning and moisturizing agent has no irritating odor, is safe, low in toxicity and corrosion, free of chemical residuals, stable in performance and convenient to use, can be used for pre-cleaning and moisturizing surgical instruments, microsurgical instruments, flexible endoscopes, dental instruments, minimally invasive surgical instruments, rigid endoscopes and high frequency instruments and the like which are prepared from stainless steel, alloy of the stainless steel, copper, rubber and other materials.

A rigid endoscope optics (1) including a housing consisting of several housing parts (5, 8, 9, 6, 16) which hermetically encloses optic elements (3, 2, 4) and which is fitted with a hermetic connection (13, 14; 7, 15) between two housing parts (9,8; 9, 16) is characterized in that one (9) of the connected housing parts is made of PPS (polyphenylenesulfide) plastic or of PPSU (polyphenylsulfone) plastic, and the other (8, 16) connected housing part is made of PPS, PPSU or glass, the housing parts (8, 9, 16) being fitted with a metal coating (7, 13, 14, 15) at the connection site (13, 14; 7, 15) and are soldered to one another.

A rigid endoscope includes an outer housing subassembly that supports an optics subassembly. The outer body subassembly includes concentric tubes with optical fiber for providing object illumination. The optics subassembly includes a tubular sheath sealed at both ends. A compression spring is positioned between a proximal most relay lens element and a distal most eyepiece element. The spring exerts a distally acting force on the elements of an optical objective and relay lens system. It also produces a proximally directed force on optical elements in the eyepiece. This minimizes differential thermal expansion stresses during autoclaving operations.

A rigid endoscope optics (1) including a housing formed by several housing parts (5, 8, 9, 6, 16) that hermetically enclose optic elements (3, 2, 4) and are fitted with hermetic connections (7, 11, 13, 14, 15) between each other. At least one of the housing parts (8, 9) is made of plastic. At least at one of the connection sites of the plastic housing part (8, 9), the plastic has metal coating (11, 13, 14, 15) and the connection is a solder joint.

A rigid endoscope includes an imaging module and a hermetic shell for containing the imaging module. A connecting line is contained in the hermetic shell, and has first and second ends. The first end is connected to the imaging module. A receiving opening is formed in the hermetic shell. A female tapered surface is formed inside the receiving opening. A sealed terminal device is connected electrically with the second end of the connecting line, for hermetically closing the receiving opening. A male tapered surface is formed on the sealed terminal device, for retaining the sealed terminal device in the receiving opening by engagement with the female tapered surface, to keep the hermetic shell air-tight. Preferably, the male and female tapered surfaces are attached together by laser welding. Also, the sealed terminal device includes a lead-through conductor.

The invention relates to test equipment for rigid endoscopes, but also for flexible endoscopes and video endoscopes. The equipment includes an enclosure having a cover hingedly coupled to a base, an optical test target coupled to the cover, an endoscope support stand pivotably coupled to the enclosure and a bed contained within the base including a plurality of indentations shaped for receiving individual pieces of endoscope testing equipment. The testing equipment can include magnification loupes, light post adapters, battery powered light sources, cleansing tissues and a ruler. A support bracket is coupled between the cover and the endoscope support stand wherein the endoscope support stand is pivotably coupled to the support bracket.

An optical barrel (1) enclosing rod lenses (2) of a rigid endoscope optics, the rod lenses being contacted by the barrel in zones wherein an inwardly deforming, blade (4, 4′) cut free by two associated cutouts (5, 5′) in the barrel (1) is designed at each zone to make contact with rod lens (2).

Even when the optical axis is offset in a rigid endoscope, the actual optical axis position is measured in advance, and surgery navigation can be performed by using the actual optical axis position.

A surgery assistance system comprising 3-dimensional shape measurement means for measuring a 3-dimensional surface shape of a patient; and a rigid endoscope (11) to be inserted into the body of the patient; wherein the rigid endoscope has a position-orientation detection marker (12) measurable by the 3-dimensional shape measurement means; 3-dimensional tomographical data of the patient imaged in advance and a position relationship relating to the actual optical axis position of the rigid endoscope measured in advance are stored in the computation means; 3-dimensional tomographical data and the 3-dimensional surface shape of the patient measured by the 3-dimensional shape measurement means are aligned; the position, orientation, and optical axis of the rigid endoscope are computed on the basis of the position-orientation detection marker measured by the 3-dimensional shape measurement means and the stored actual optical axis position of the rigid endoscope; and the aligned 3-dimensional tomographical data, the optical axis of the rigid endoscope, and the intersection of the optical axis and the tissue wall are displayed.