204 results about "Hysteroscopes" patented technology

The invention is directed to an endoscopic assembly having an endoscope, particularly a flexible hysteroscope and an outer sheath disposed about a length of the shaft of the hysteroscope which has an expandable member such as an inflatable balloon for sealing the assembly within a body lumen or cavity. Specifically, the endoscope assembly is configured for delivery of an occlusive contraceptive member to the patient's fallopian tube. The invention is also directed to an endoscope having a driving member for movement of a medical device within the working lumen of an endoscope. In one embodiment the driving member is a friction wheel which engages an elongated medical device disposed within the working channel of the endoscope to effect longitudinal movement of the medical device.

A system for performing a medical procedure and an introducer device suitable for use in the system. The system may be used, for example, to examine and/or to treat the uterus. According to one embodiment, the system includes an introducer, a morcellator, a flexible hysteroscope, and a fluid-containing syringe. The introducer is suitable for transcervical insertion into the uterus and includes a gun-shaped housing and a rigid sheath extending distally from the housing. The sheath is shaped to include an instrument lumen, a visualization lumen, and a pair of fluid lumens. The introducer also includes a first assembly within the housing for receiving the morcellator and for guiding the distal end of the morcellator into the instrument lumen and a second assembly within the housing for guiding the hysteroscope into the visualization channel. In addition, the introducer further includes an assembly for fluidly connecting the syringe to the fluid lumens.

The present invention relates to apparatus and methods for thermally ablating uterine fibroids. More particularly, the present invention relates to a conduit having a plurality of channels for delivering a plurality of thermal ablation probes to an organic target such as a uterine fibroid, the probes being delivered in such configuration and orientation as to enable efficient and thorough ablation of the fibroid. In a preferred embodiment, the conduit is formed as a sleeve having a large central lumen sized to accommodate a hysteroscope, channels sized to accommodate cryoprobes are used as thermal ablation probes, and comprises thermal insulation materials serving to protect the cervix from damage by cold. The present invention further relates to bent cryoprobes usable in conjunction with such a conduit and designed to exit therefrom in a desired configuration useful for ablating a large fibroid.

Methods are disclosed, for performing therapeutic or diagnostic procedures at a remote site. According to one embodiment, the methods include the use of a system including an introducer designed for transcervical insertion into the uterus. The introducer is constructed to include a fluid lumen, an instrument lumen, and a visualization lumen. The system may include a fluid source, which is coupled to the fluid lumen and is used to deliver a fluid to the uterus either for washing the uterus or for fluid distension of the uterus. The system additionally includes a tissue modifying device, such as a morcellator, and a distension device for distending the uterus and/or for maintaining the uterus in a distended state. The tissue modifying device and the distension device are alternately deliverable to the uterus through the instrument lumen. The system may further include a hysteroscope deliverable to the uterus through the visualization lumen.

A method and composition for effecting necrosis of a tissue lining of a mammalian body cavity, particularly a uterine endometrium, by introducing an applicator comprising a hysteroscope housing a first and a second catheter connected to a catheter into the uterus, distending the uterus by introducing CO2 gas under pressure, delivering a silver nitrate paste to the endometrium through the first catheter and allowing the paste to remain a sufficient amount of time to substantially cauterize the entirety of the tissue lining, particularly the endometrium and delivering an aqueous sodium chloride solution to the uterus through the second catheter thereby neutralizing the silver nitrate and rinsing the uterine cavity.

An endoscope has an optics housing provided at a proximal end, with an outer shank releasably connected to the optics housing, and with an inner shank which is arranged inside and parallel to the outer shank and is releasably connected to the optics housing. A corresponding endoscope set and a set of endoscope shanks are also provided.

A device useful in forming a seal between a hysteroscope instrument and a cervical canal during diagnostic or surgical procedures known as hysteroscopy. The device grasps the exterior of the cervical canal pressing the cervical canal inwardly toward the outer surface of the hysteroscope instrument forming a seal between the outer surface of the hysteroscope instrument and the cervical canal, thereby preventing fluid or gas from exiting the cervical canal.

Contraceptive methods, systems, and devices generally improve the ease, speed, and reliability with which a contraceptive device can be deployed transcervically into an ostium of a fallopian tube. The contraceptive device may remain in a small profile configuration while a sheath is withdrawn proximally, and is thereafter expanded to a large profile configuration engaging the surrounding tissues, by manipulating one or more actuators of a proximal handle with a single hand. This leaves the other hand free to manipulate a hysteroscope, minimizing the number of health care professional required to deploy the contraceptive device.

Transcervical pathway systems and methods are described. The system may include a delivery sheath having a first longitudinal opening and a second longitudinal opening. A visualization system, such as a hysteroscope, is deliverable through the first longitudinal opening of the delivery sheath. An implant delivery system is deliverable through the second longitudinal opening of the sheath. The implant delivery system may include a guide and an implant delivery system moveably (e.g. slideably) engaged with the guide.

Systems and methods of visibly marking a reproductive tract, e.g., at least one ostium of the Fallopian tubes accessed transvaginally and transcervically, to indicate delivery of an occlusion device into the corresponding at least one Fallopian tube to effect contraception are disclosed. Marking is effected by delivery of a dye that stains the ostium and/or extension of the marking member from the delivered occlusion device into view in the uterine cavity or ostium. A catheter (or catheters) preferably introduced through a hysteroscope that illuminates and provides visualization of the uterine cavity and the ostia of the Fallopian tubes is employed to insert each contracted, stent-like, occluding device into each Fallopian tube and to mechanically expand or release to self-expand the occluding device.

A scope seal and method for sealing a working channel of a hysterscope is disclosed. The scope seal includes a proximal end through which a catheter can be received, a distal end that communicates with a fitting on the hysteroscope, and a substantially hollow body longitudinally extending between the proximal end and the distal end. The scope seal also includes a catheter sealing mechanism positionable within the body, a shaft seal, a chamber configured to receive the fitting of the hysteroscope and a pressure relief chamber. The catheter sealing mechanism can be any one of a duckbill valve, a conic valve, and/or a membrane. The chamber for receiving the fitting on the hysteroscope communicates with the fitting positioned on a proximal end of the hysteroscope, where the working channel of the hysteroscope accommodates a catheter therethrough in order to perform in vivo procedures.

The invention relates to a preparation method and application of collagen scaffold composite bone marrow-derived mesenchymal stem cells (BMSCs). The preparation method comprises the steps of preparing single cell suspension after trypsinizing the BMSCs, uniformly dropwise adding the single cell suspension to a collagen scaffold, putting the collagen scaffold into an incubator to be cultured, and adding an L-DMEM complete medium to continue culture, thus obtaining the collagen scaffold composite BMSCs. The preparation method has the advantages that the following defects are overcome: endometria are seriously injured as intrauterine adhesion is mechanically separated by adopting hysteroscopic surgery, intrauterine devices or anti-adhesion materials are put after the surgery and estrogens are given after the surgery to promote intima growth; the problem of intima scars can not be solved; functional intima repair can not be achieved; adhesion is very easy to happen again. As active ingredients for treating serious endometrium injury, the BMSCs are convenient to obtain, secrete growth factors to improve the local microenvironment and immunoregulation, have good biocompatibility, degradability and safety, promote scarred endometrium repair and increase the intima thickness and local blood vessel density.

The invention belongs to medical appliance field and in particular discloses an ultrasonic hysteroscope system. The ultrasonic hysteroscope system comprises a three-channel hysteroscope which is provided with a sheathing canal and is composed of a sheathing canal twin channels and a lens single channel, and a minisize ultrasonic probe connected with the three-channel hysteroscope. The hysteroscope is composed of an inner lens main body, an inner lens end, an appliance channel connected at the inner lens end, an ocular input end and a cold light source input end which are arranged at angles with the inner lens main body, and a connecting shaft used to connect the sheathing canal of the hysteroscope. The minisize ultrasonic probe passes through the appliance channel and the sheathing canal of the hysteroscope to detect the interior condition of the uterine cavity. The ultrasonic hysteroscope system integrates a large-diameter appliance channel in the hysteroscope, so standard appliances can enter the uterine cavity from the appliance channel of the hysteroscope, thus greatly widening operation scope. In addition, the minisize ultrasonic probe enters the uterine cavity for ultrasonic scanning from the appliance channel of the hysteroscope, so a doctor can know the pathological changes of a patient more visually and more accurately under the help of a high-resolution contrast picture and can make the best diagnosis. The ultrasonic hysteroscope system makes gynecological examination and operation methods richer and improves operation safety.

A device useful in diagnostic or surgical procedures for sealing the cervical canal in which an inflatable device is used with a hysteroscope instrument. The inflatable device provides a seal between an outer surface of the hysteroscope instrument and the cervical canal, thereby preventing fluids from exiting the cervical canal.

A hysteroscope includes a shaft comprising a fiber optic light channel, an operating channel, and two fluid circulating channels; and a zero-angle lens disposed at an distal end of the fiber optic light channel, wherein a distal section of the shaft has a bent section, and wherein the bent section has a deflection angle of about 5-40 degrees relative to a longitudinal axis of the remaining section of the shaft.

A medical instrument, in particular a hysteroscope, has a shaft part (12) having a first shaft and an optical system having a second shaft (40), in which the shaft part (12) and optical system can be displaced with respect to one another along the shafts thereof such that, in a first position, the second shaft (40) of the optical system extends beyond the first shaft of the shaft part (12) on the distal side and that, in a second position, a distal end (23) of the first shaft of the shaft part (12) comes to rest approximately level with a distal end (41) of the second shaft (40) of the optical system.

The invention discloses a hysteroscope, comprising: an insertion part, including an insertion tube and an imaging module seat, and an optical imaging device and a light source are arranged in the imaging module seat; an operation part, connected to the end of the insertion part, includes a handle and a The handle is a handle with a certain angle. The handle is provided with an instrument inlet, and the front end of the insertion part is provided with an instrument outlet. The instrument inlet is connected to the instrument outlet through the instrument channel pierced inside the handle and the inner cavity of the insertion tube; A water inlet base and a water outlet base are provided. The front end of the insertion part is provided with a water inlet and a water outlet. Outlet. The hysteroscope involved in the present invention can treat the patient in time while carrying out routine examination on the patient's uterus, which is convenient and safe; at the same time, the entire examination and treatment process is visible, safe and reliable, and can reduce the damage caused to the patient. to a minimum, with high practical value.

The invention discloses disposable electronic hysteroscope equipment. The disposable electronic hysteroscope equipment is characterized by comprising a hysteroscope used for being inserted into the uterine cavity of a patient to examine and treat the uterine cavity of the patient, and a control system used for controlling the hysteroscope to conduct related examination and treatment work. The hysteroscope comprises a tube body, a head structure, a handle and a water segregator, wherein the head structure comprises a head and an inserting part arranged at the tail end of the head; the front endface of the head comprises a first end face and a second end face; and an included angle between the first end face and the second end face is an obtuse angle. The control system comprises an image processing module, a display screen, a storage module, a uterine distension suction module, a disposable hysteroscope authentication module, a power supply module and a control module. The hysteroscopecan be isolated from an electrified instrument, so good safety performance is obtained; and whether the hysteroscope is used for the first time or not can be judged through the disposable hysteroscope authentication module, so repeated use of the hysteroscope is avoided, and the safety of a patient is guaranteed.

The invention discloses a hysteroscope. The hysteroscope comprises a hysteroscope sheath and an endoscope which is arranged in the hysteroscope sheath, the hysteroscope sheath comprises an inner sheath body and an outer sheath body, the outer sheath body is provided with a water inlet and a water outlet, an operating electrode is arranged in the inner sheath body, a cleaning device is arranged on the side portion of the endoscope, and the cleaning device is driven by a driving device arranged outside the hysteroscope sheath to scrub the surface of the endoscope; a sliding block is movably arranged on the outer sheath body, a suction tube is arranged between the inner sheath body and the outer sheath body, and the sliding block is connected with the suction tube. The cleaning device is arranged on the hysteroscope sheath to clean the surface of the endoscope, the situation that tissue scraps block the view of the endoscope is avoided, and it is guaranteed that an operation is conducted smoothly. Due to the fact that the suction device is arranged, the detached tissue scraps can be sucked out of the uterine cavity, and the situation that the operation sight line is blocked due to the fact that a large amount of tissue floats in the uterine cavity is avoided. A tissue collection tank is designed to be a two-layer solid-liquid separator device, the blood or other biological interstitial fluid and biological tissue are separated, and collection of biological tissue samples is facilitated.

The invention discloses an electronic hysteroscope. The electronic hysteroscope comprises a hysteroscope body and a uterine cavity expansion assembly; the uterine cavity expansion assembly comprises an expansion capsule and a cannula; the cannula is arranged on an extension rod in a sleeving mode; a hook portion which is matched with a fixing part arranged on a handle is arranged corresponding to the tail end of the cannula; the position of the expansion capsule, which is corresponding to a camera, is located at the head end of the cannula and can cover the camera; the cannula wall of the cannula is provided with a guide hole which extends along the axial direction of the cannula wall; the head end of the guide hole is communicated with the expansion capsule; the tail end of the guide hole bends towards the outer side to form a connection opening. According to the electronic hysteroscope, the design is skillful, the structure is reasonable, the hysteroscope body is provided with the uterine cavity expansion assembly and accordingly a uterus can be expanded through the uterine cavity expansion assembly in the case of observation of the uterus so as to obtain a large observation range, and accordingly changes of portions of the uterus can be accurately and rapidly understood, the accuracy of the diagnosis is greatly improved, and the safety and the efficiency of surgery are ensured.

The invention relates to the field of medical instruments, in particular to a hysteroscope and biopsy forceps integrated sleeve device capable of preventing falling during biopsy. The hysteroscope andbiopsy forceps integrated sleeve device comprises a sleeve I, a hysteroscope, a sleeve II, a claw sleeve, a wire drawing ring, wire drawing sleeves, drawing wires, a sleeve shell, a guide pipe, a ratchet top plate I, a ratchet top plate II, a spring I and a biopsy forceps structure. Three states of the claw sleeve in the device respectively correspond to three stages of biopsy grabbing of biopsyforceps in a targeted manner. In the folding state I, the biopsy forceps are contracted into the sleeve I before grabbing. In the state II, due to the elastic opening characteristic of the claw sleeve, the claw sleeve can be automatically opened when stretching out, biopsy tissue grabbed by the biopsy forceps can be covered with the claw sleeve, and after elastic opening, biopsy tissue with different sizes can be covered in a universal manner through the open claw sleeve. In the state III, a port at the front end of the claw sleeve is pulled back by the drawing wires to be tightened and closedinto a closed state, so that the clamped biopsy tissue is completely wrapped, and double guarantees are provided for preventing the biopsy tissue from falling off.