605results about "Cystoscopes" patented technology

The invention discloses a sealing structure, a negative pressure suction sheath and an endoscope assembly, and belongs to the technical field of medical instruments. The sealing structure is used for the negative pressure suction sheath and comprises a first cover body detachably connected with the near end of a sheath base of the negative pressure suction sheath, a first through hole is formed in the middle of the first cover body, and a first air hole is formed in the radial outer side of the first through hole; the second cover body is arranged on the outer side of the first cover body in a sleeving mode and detachably connected with a sheath base of the negative pressure suction sheath, a second through hole is formed in the middle of the second cover body, and a second air hole is formed in the radial outer side of the second through hole; the second cover body and the first cover body are in sliding fit, and the overlapping opening degree of the first air hole and the second air hole is adjusted through relative sliding; the second cover body axially limits the first cover body and provides support when the endoscope is inserted, so that the first cover body is prevented from collapsing. The sealing structure is used for the negative-pressure suction sheath, the branch switch is prevented from additionally occupying the operation space, and the operation safety is improved.

The utility model provides a guiding device and dilator for improving pressure measurement accuracy, the guiding device comprises a pressure measurement sheath, the pressure measurement sheath comprises a handle and a sheath tube, the size and shape of the sheath tube are suitable for entering a target area in a body through a body lumen, the sheath tube longitudinally extends from a near end to a far end, the sheath tube defines a first lumen suitable for entering of an external instrument, and the first lumen is communicated with the handle. A pressure measuring tube cavity longitudinally extending from the near end to the far end is formed in the tube wall of the sheath tube, a pressure measuring opening used for sensing the pressure of liquid in the body is formed in the far side of the pressure measuring tube cavity, and the dilator is arranged in the first tube cavity in a supporting and penetrating mode so that the pressure measuring sheath can enter the body conveniently. And the dilator is provided with a blocking part for limiting foreign matters from entering the pressure measuring tube cavity through the pressure measuring port.

The endoscope system comprises the sheathing canal, one end of the sheathing canal is connected with a handle, the other end of the sheathing canal is slidably connected with a head end fixing ring, and a flexible channel is connected between the head end fixing ring and the sheathing canal; an endoscope channel and a suction channel are arranged in the sheath tube, the endoscope channel and the sheath tube are eccentrically arranged, the suction channel has a crescent outline, and the front end of the endoscope is arranged in the endoscope channel in a penetrating manner; the head end fixing ring comprises an inner ring and an outer ring, the outer wall of one side of the inner ring is tangent to the inner wall of the outer ring, a crescent channel is formed between the outer wall of the other side of the inner ring and the inner wall of the outer ring, and the inner ring sleeves the periphery of the endoscope and can axially move along the endoscope; the two ends of the flexible channel are fixedly connected with the crescent channel and the suction channel respectively, in the initial state, the flexible channel is folded in the suction channel, and the head end fixing ring moves away from the far end of the sheathing canal to enable the flexible channel to be unfolded into a tubular working channel. On the basis that the size of the head end of the endoscope is not changed, a stable and larger suction channel is provided, and discharging of large stones is facilitated.

The invention relates to the technical field of intelligent urethral surgical instruments, and particularly discloses a urethral dilation path planning system integrating visual SLAM and force perception, which synchronously acquires image data of the internal environment of the urethra and contact force data between the instrument and tissues through an image sensor and a force sensing unit integrated at the front end of the dilation instrument; constructing a three-dimensional environment model in the urethra by utilizing a visual SLAM technology, and positioning the position of an instrument in real time; the force data and the three-dimensional model are fused to generate a dynamic force distribution diagram, and a safe expansion path is planned based on the distribution diagram and the current position of the instrument; dynamically adjusting the advancing direction and the expansion force of the instrument through a closed-loop control system to enable the instrument to move along a planned path; meanwhile, path deviation and force abnormity are detected in real time through a monitoring mechanism, and model updating and path re-planning are triggered.

The negative pressure suction sheath comprises a sheath tube, a negative pressure connector and an expander, the negative pressure connector comprises a main channel cavity and a negative pressure suction channel cavity located on one side of the main channel cavity, the near end of the sheath tube is connected with the far end of the main channel cavity, and the expander is inserted from the near end of the main channel cavity and extends out of the far end of the sheath tube. The main channel cavity is detachably connected with the main channel cavity; a side channel opening is formed in one side of the main channel cavity, and the negative pressure suction channel cavity communicates with the side channel opening. The cavity wall of the main channel cavity is further provided with a pressure adjusting opening, the pressure adjusting opening corresponds to the side channel opening or is located at the end, away from the sheathing canal, of the side channel opening, the negative pressure in the sheathing canal can be adjusted by adjusting the opening size of the pressure adjusting opening, and therefore an operator does not need to leave to adjust the negative pressure device to adjust the suction force in the sheathing canal. The negative pressure in the sheathing canal can be adjusted only by adjusting the size of the pressure adjusting opening in the handheld negative pressure connector.

A tele-endoscopy system and method enable low-cost hand-held endoscopes to be used both (i) when linked so that a local endoscope controls a remote endoscope and (ii) individually so that a remote endoscope can carry out or continue a procedure even if the link to the remote endoscope degrades or there is no link. The system fills a gap between expensive telesurgery that critically depend on a high quality communication link and individually used endoscopes and is particularly intuitive and user-friendly.

The invention relates to the technical field of medical instruments, and discloses a flexible ureteroscope sheath device and a pressure control method thereof.The flexible ureteroscope sheath device is characterized in that one end of a connector tube seat is connected with a sheath tube, the other end of the connector tube seat is provided with three connectors, the first connector is connected with a pressure relief device and a control device, the second connector is used for a flexible ureteroscope and perfusion, and the third connector is used for negative pressure suction; a central channel is arranged in the sheathing canal, and passage type pressure measuring sensors are axially and uniformly arranged around the channel; the control device comprises an adjusting key, a digital display, an indicating lamp and a buzzer, and is electrically connected with the pressure measuring sensor and the pressure relief device; the control device comprises an automatic pressure relief module which is used for collecting analog voltage signals and converting the analog voltage signals into pressure data values, and when a detection value reaches a set threshold value, the electric control pressure relief device automatically relieves pressure. According to the invention, real-time and continuous detection and control of the pressure in the cavity are realized.

The present invention discloses a sheath placement device and a method for using the same. The sheath placement device includes an inner layer member having an operating handle and an insertion portion connected to the operating handle, the insertion portion having an imaging portion; an outer sheath having a drainage port and a distal open end; the insertion portion operatively inserted into the outer sheath and at least partially operatively extended from the distal open end; and a first passageway operatively spaced apart from the outer sheath to form a connection between the drainage port and the distal open end; and a middle layer member operatively inserted between the outer sheath and the insertion portion and at least partially operatively extended from the distal open end; when the middle layer member is withdrawn from between the inner layer member and the outer sheath, a first passageway is formed between the inner layer member and the outer sheath. Compared to existing technologies, this system is easy to use and can simplify surgical procedures while reducing surgical costs, lowering surgical risks, and alleviating patient pain.

The visual balloon type urethral dilation device comprises a urethral endoscope and a balloon dilator arranged in the urethral endoscope in a penetrating mode, and the urethral endoscope and the balloon dilator are matched with the urethra of the human body. The observation field of view of the urethra endoscope covers the dilation balloon of the balloon dilator, and visual dilation of the dilation balloon is achieved. The balloon dilator is provided with an independently-controlled fixing balloon, the fixing balloon and a balloon-shaped cavity in the urethra endoscope probe form a detachable fixing structure, the balloon dilator can penetrate through a middle shaft of the probe to move axially when fixing is removed, and the guiding function of the probe is achieved. The balloon dilator can be used in a disposable mode, and cross infection is prevented. And the probe is provided with a panoramic camera and a light supplementing lamp which are symmetrical, so that the visualization precision is improved. The urethra dilatation operation accuracy, safety and diagnosis and treatment efficiency are greatly improved from the aspects of high visualization, dilatation precision adjustment and the like.

Systems and methods of in situ pressure control at an anatomical environment during a procedure are disclosed. An exemplary irrigation and suction system comprises a user input configured to receive from a user a desired pressure to be applied to the anatomical environment, or a desired flow condition corresponding to the desired pressure. The system comprises a pressure sensor to sense a pressure at or near the anatomical environment, and a control module to adjust one or more of an irrigation flow rate or a suction flow rate of at least one working channel of a medical device to maintain the pressure of the anatomical environment at substantially a level of the desired pressure, or to maintain the desired flow condition in the working channel during the procedure.

The invention discloses an insertion part and an endoscope, and relates to the technical field of medical instruments. The insert includes a first tubular structure and a plurality of segments. The multiple sections are arranged on the first pipe structure at intervals in the extending direction of the first pipe structure, and every two adjacent sections can relatively rotate with the first pipe structure between the two adjacent sections as a support, so that the insertion part is bent. The first pipe structure sequentially penetrates through the sections, and the far end of the first pipe structure is communicated with the external space of the insertion part. The insertion part realizes the sharing of a rotating structure for bending the insertion part and a medium conveying channel. The compactness of each structure in the insertion part can be improved, and the size of the insertion part can be reduced.

Systems and methods of in situ unclogging a working channel in a medical device during a procedure are disclosed. An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating a presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide respectively irrigation fluid or suction pressure to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of the anatomical environment at the anatomical site, or to maintain a desired flow condition in the working channel, during the procedure.

The present application belongs to the technical field of medical instruments. Provided are a negative pressure regulation and control structure and a ureteral access sheath. The negative pressure regulation and control structure comprises a negative pressure tube and a suction valve. The negative pressure tube is provided with a suction channel and a hole which are communicated with each other, wherein the suction valve is in a sliding fit with the negative pressure tube, and the flow area of the hole can be adjusted by sliding the suction valve. The suction valve comprises a valve main body and a connecting protrusion which are connected to each other, the valve main body being arranged outside the negative pressure tube; the connecting protrusion passes through the hole and partially protrudes out of the inner wall of the negative pressure tube, and is snap-fastened to the inner wall of the negative pressure tube, the face of the connecting protrusion snap-fastened to and abutting against the inner wall of the negative pressure tube is a limiting face; and in the direction from the side of the limiting face close to the hole towards the side away from the hole, the limiting face inclines in a direction away from the valve main body. By means of setting the limiting face to be inclined in the direction away from the valve main body so as to expand a mounting space between the limiting face and the valve main body, the present application reduces the amount of deformation of the valve main body required by the connecting protrusion entering the suction channel, thereby improving the convenience in mounting the suction valve.

Provided is a ureteral lithotripsy catheter, comprising a sheath (1). One end of the sheath (1) is fixedly connected to a vortex cavity (3), and the other end of the sheath (1) is connected to a bending section (9). The sheath (1) is provided with a pressure detection hole (8) and a pressure detection channel (10). The pressure detection hole (8) is in communication with the pressure detection channel (10). The other end of the pressure detection channel (10) is connected to a detachable pressure sensor. By means of arranging the detachable pressure sensor, the sensor body can be detached when not in use, facilitating storage. During use, the connection between the sensor body and the sensor chip is convenient, rapid, and reliable. The pressure sensor can monitor accurate and reliable data by means of the pressure detection channel, avoid high pressure in the minimally invasive cavity, and significantly improve the safety rate of surgery and the calculus removal efficiency.

Systems and methods of in situ unclogging a working channel in a medical device during a procedure are disclosed. An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating a presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide respectively irrigation fluid or suction pressure to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of the anatomical environment at the anatomical site, or to maintain a desired flow condition in the working channel, during the procedure.

To provide a suction and irrigation system for maintaining in situ pressure of an anatomical environment at an anatomical site under control during an endoscopic procedure.SOLUTION: Systems and methods for providing in situ pressure control in an anatomical environment during a procedure are disclosed. The exemplary irrigation and aspiration system includes a user input configured to receive from a user a desired pressure to be applied to the anatomical environment or a desired flow condition corresponding to the desired pressure. The system includes a pressure sensor for sensing pressure in or near an anatomical environment during a procedure, and a pressure sensor for sensing a pressure in the anatomical environment during the procedure, or a control module for adjusting one or more of an irrigation flow rate or an aspiration flow rate of at least one working channel of the medical device to maintain a desired flow condition in the working channel.SELECTED DRAWING: Figure 1

A method of localizing a target anatomy involves advancing a ureteroscope to a target calyx of a kidney of a patient through at least a portion of a urinary tract of the patient, determining a positional offset between one or more position sensors associated with the ureteroscope and a target papilla of the kidney that is at least partially exposed within the target calyx, and determining a percutaneous access target based at least in part on one or more of a present position of the one or more position sensors or the positional offset.

The invention disclosed in this document presents a novel direct in-scope suction system designed for the retrieval of calculus fragments within the body. This system comprises two key components: a calculus fragments retrieval device and a pump unit. The calculus fragments retrieval device features a body with a single working channel that includes both an irrigation port and a suction port, which are connected to respective irrigation and suction pumps via elastomer-based rubber tubes. This setup allows for the controlled infusion of saline solution into the body lumens during lithotripsy procedures, ensuring clear visibility and fragment clearance. The retrieval device includes a trigger lever connected to a pincher tab. When the operator presses the trigger lever, the suction port is opened by releasing the pinched suction tube, increasing pressure inside the body.

The catheter comprises a catheter body and a camera shooting assembly, the catheter body comprises an operation part and an intubation tube from the near end to the far end, and the camera shooting assembly comprises a camera installed at the head end of the intubation tube. The operation part comprises an operation part shell, and a perfusion joint, a suction joint and an instrument inlet which are arranged on the operation part shell; a liquid outlet channel and a liquid inlet channel are arranged in the intubation tube, and the liquid outlet channel and the liquid inlet channel are arranged separately; the cannula comprises a main tube section, a bent section and a head end in the extending direction from the near end to the far end, the bent section is driven by the operation part to drive the head end to deflect, and the flexible tube wall at least partially limits the boundary of the liquid inlet channel and / or the liquid outlet channel.

A disinfection-free soft cystoscope, a repeatable soft cystoscope kit and a disposable soft cystoscope housing (610) wherein the disinfection-free soft cystoscope comprises a bendable cystoscope body (10) comprising a control body (11), an imaging element (14) and at least one lighting element (13), the imaging element (14) and the lighting element (13) are independently arranged at the top end of the control body (11), the bending angle and the bending direction of the control main body (11) are suitable for being adjusted; and an outer housing (20) having a housing (21), a visual channel (22) and a working channel (23), the visual channel (22) and the working channel (23) being longitudinally arranged in the housing (21) independently of each other, the working channel (23) being adapted to perfuse and mount a surgical instrument, the bendable mirror (10) being detachably mounted in the visual channel (22), the bendable mirror (10) being detachably mounted in the working channel (23), and the bendable mirror (10) being detachably mounted in the working channel (23). The disinfection-free soft cystoscope can execute corresponding operation under the visual condition, and the bendable cystoscope body (10) is installed in the outer shell (20) in a sealed mode so as to isolate the external environment.

To provide systems and methods of in situ unclogging a working channel in a medical device during a procedure.SOLUTION: An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating the presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide irrigation fluid or suction pressure, respectively, to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of an anatomical environment at an anatomical site, or to maintain a desired flow condition in the working channel, during a procedure.SELECTED DRAWING: Figure 1

The invention is suitable for the technical field of urinary surgery, and particularly relates to a bladder pressure control method and system and transurethral surgery operation equipment. Wherein the bladder environment information comprises a bladder environment model and blood vessel distribution information; the bladder pressure is monitored in real time; wherein the bladder pressure reflects the pressure in the bladder in the operation process; obtaining a perfusion speed and a discharge speed based on the bladder pressure; when a pre-operation instruction is received, the perfusion adjustment speed and the discharge adjustment speed are obtained based on the pre-operation instruction and the bladder environment information; wherein the pre-operation instruction is an instruction which is sent by a doctor and is used for controlling a cutting instrument to cut a tumor or a basal wound surface. According to the bladder pressure control method and system and the transurethral surgery operation equipment provided by the embodiment of the invention, the problem that pressure rise in the bladder causes adverse effects on the safety of a patient and postoperative recovery can be solved.

Medical devices are described including a medical device that includes a casing assembly with a first portion movably coupled to a second portion, a first fluidics channel, a second fluidics channel, a third fluidics channel, and a fourth fluidics channel. Moving the first portion relative to the second portion may transition the medical device between a first and a second configuration. In the first configuration, the first and second fluidics channels may be fluidly connected, and the third and fourth fluidics channels may be fluidly connected. In the second configuration, the first and third fluidics channels may be fluidly connected, and the second and fourth fluidics channels may be fluidly connected.

The present disclosure relates to systems and methods for driving medical instruments. Certain aspects relate to systems and techniques for driving medical instruments having an inner body and an outer body. In one aspect, a system includes a medical instrument including an outer body and an inner body configured to be driven through a lumen in the outer body. The system can also include a set of one or more instrument manipulators configured to control movement of the outer body and the inner body, and a set of one or more processors configured to: receive a change drive mode command; and change a drive mode of the medical instrument from a paired drive mode to an unpaired drive mode in response to receiving the change drive mode command.

The invention relates to a dual-channel ureter pelvis endoscope. On the basis of a traditional ureter pelvis endoscope, a flexible endoscope body, a perfusion channel assembly, an endoscope body handle connecting part, an operating handle, a lighting assembly, a camera shooting assembly, a laser optical fiber assembly, a host connecting wire connector, a host connecting wire and an operating handle adjusting rod. A negative pressure suction drainage channel assembly penetrating through the whole double-channel flexible ureter pelvis endoscope is additionally arranged, so that the flexible ureter pelvis endoscope can be used for synchronously inflowing water and sucking water out through negative pressure. The laser lithotripsy instrument has the advantages of larger irrigation and drainage space, high water changing rate, clear view during operation, reduction of temperature rise caused by laser lithotripsy, reduction of intrarenal pressure, bending of 270 degrees, 9-10Fr of outer diameter, 5-6Fr of working channel, light weight less than 95g, light weight, convenience, avoidance of fatigue feeling caused by holding the handle for a long time, saving of operation time, disposable use and avoidance of cross infection.

A medical system (10) includes an insertion device (12) including a handle (22), an insertion portion (24) having at least one lumen, a port (38) fluidly coupled to the lumen, and a connection portion (18). The medical system also includes a medical device (14) including a handle (50), an insertion portion (52), and a connection portion (20) configured to be coupled to the connection portion of the insertion device. The connection portion of the medical device is configured to be coupled to the connection portion of the insertion device to form an electronic and physical connection between the insertion device and the medical device.

A delivery device for positioning an implantable expander to a target location in a prostatic urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

The invention disclosed herein presents a novel intra-scope direct aspiration system designed for retrieving stone fragments from within the body. This system comprises two major components: a stone fragment retrieval device and a pump unit. The stone fragment retrieval device features a main body with a single operating water conduit containing both an irrigation port and an aspiration port, which are connected to the respective irrigation and aspiration pumps via elastomer-based rubber tubing. This setup allows for the controlled infusion of saline into the body cavity during the lithotripsy procedure, ensuring clear visibility and the removal of debris. The retrieval device includes a trigger lever connected to a clamping tab. When the operator presses the trigger lever, the clamped aspiration tube is released, opening the aspiration port and increasing intra-body pressure.

A robotic system includes a robotic manipulator configured to manipulate an endoscope having a camera associated therewith and control circuitry configured communicatively coupled to the robotic manipulator. The control circuitry can be configured to receive an image depicting a field-of-view (FOV) of the camera associated with the instrument, detect an anatomical feature in the image, display a graphical interface that includes the image and a visual overlay indicating a location of the anatomical feature in the image, and track the anatomical feature based at least in part on determining that the anatomical feature is a target anatomical feature.

A method for removing one or more objects or substances from a body lumen includes delivering a tube and an expandable device into the body lumen to a location proximal to the one or more objects or substances. The expandable device is disposed within a lumen of the tube, the expandable device including a lumen extending from a distal portion to a proximal portion. The method includes retracting the tube proximally so that the expandable device remains proximal to the one or more objects or substances, advancing the expandable device distally so that a distal portion of the expandable device at least partially surrounds the one or more objects or substances, at least partially closing the distal end of the expandable device, and moving the expandable device proximally to remove the expandable device and the one or more objects or substances from the lumen.