242 results about "Lithotripsy" patented technology

Catheter devices for treating occlusions in body lumen are described herein. The catheter devices may include a tubular body having a distal end, an distal portion elastically connected to the distal end of the tubular body, an impactor connected to the distal portion and separated by a space from the distal end of the tubular body, a distal shock wave emitter located adjacent to the space and connected to a power source, and an enclosure at least partially surrounding each of the distal end of the tubular body, the elastic distal portion, the impactor, and the distal shock wave emitter. The impactor may be configured to move in response to shock waves generated from the distal shock wave emitter, such that a length of the space in the proximal-distal direction increases by between 0.05 mm and 0.6 mm.

A method for manufacturing a catheter (102) including a rapid exchange port (157). The method can include the steps of generating a port (258) in a catheter shaft (210), inserting a guidewire lumen (118) into the port (258), pulling the guidewire lumen (118) in a proximal direction, and pushing the guidewire lumen (118) in a distal direction so that the guidewire lumen (118) is within the catheter shaft (210). The method can also include the steps of thermally bonding the guidewire lumen (118) within the catheter shaft (210), trimming the guidewire lumen (118) so that a guidewire lumen (118) proximal end is flush with a catheter shaft (210) exterior.

The invention relates to the technical field of medical instruments, in particular to an electromagnetic focusing extracorporeal shock wave pancreatic lithotripsy device and method.The electromagnetic focusing extracorporeal shock wave pancreatic lithotripsy device comprises a device body, a bed body is installed on one side of the device body through a supporting frame, and a lithotripsy notch is formed in the side, close to the device body, of the bed body; a large C-shaped arm and a small C-shaped arm installed on the inner side of the large C-shaped arm are installed at the position of the notch of the device body, an X camera imager is installed at the upper end of the large C-shaped arm, and a shock wave generator and an ultrasonic probe installed on one side of the shock wave generator are installed on the small C-shaped arm. An energy adjusting module used for controlling the shock wave generator and a safety detection module used for detecting the skin temperature are arranged in the device body, and a displayer and a human-computer interaction interface are arranged on one side of the device body. The technical scheme in the prior art has limitations on shock wave generation, positioning precision, energy regulation and control and treatment strategies.

Laser IVL systems and methods are disclosed. A laser IVL system can include at least one light energy source and a catheter. The catheter can include an elongate sheath, an enclosure sealed to a distal end of the elongate sheath, and at least one optical fiber contained within the elongate sheath. The enclosure may have a fill volume less than 10 mL and may be fillable with a fluid. The at least one optical fiber can be optically coupled to receive light from the at least one light energy source and configured to transmit the received light at a light emitting region of the at least one optical fiber into a distal region of the catheter that is enclosed by the enclosure to generate shock waves in the fluid.

A medical device may include an elongated body having a distal elongated body portion and a central longitudinal axis. The medical device may include a balloon positioned along the distal elongated body portion. The balloon may be configured to receive a fluid to inflate the balloon such that an exterior balloon surface contacts a calcified lesion within a patient's vasculature. The medical device may include one or more pressure wave emitters positioned along the central longitudinal axis of the elongated body. The one or more pressure wave emitters may be configured to propagate at least one pressure wave through the fluid to fragment the calcified lesion. At least one pressure wave emitter may include an optical fiber configured to transmit laser energy into the balloon. The laser energy may be configured to create a cavitation bubble in the fluid.

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.

Some embodiments of a rotational atherectomy and lithotripsy system can partially or completely remove a stenotic lesion in blood vessels by rotating one or more abrasive elements to abrade and breakdown the lesion, by emitting acoustic energy to fracture and breakdown the lesion, or a combination of both.

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 present disclosure provides systems and methods for Al model(s) that are trained to identify characteristics associated with lesions within a blood vessel and provide a suggested procedure associated with the lesion. The Al model may receive, as input, intravascular and / or extraluminal image data associated with the blood vessel and provide, as output, characteristics, e.g., characterizations, associated with the blood vessel. The characterizations may include, for example, form or tissue nature (e.g., microcalcification, punctate, fragment, sheet, nodular, or otherwise), location within the vessel (e.g., intimal, superficial, medial, deep, etc.), size (e.g., length, depth, thickness, etc.), severity, and / or the like. The characterizations may be used as input to the same and / or a different model for providing a suggested procedure associated with the lesion. The suggested procedure may include, for example, orbital atherectomy, intravascular lithotripsy, rotational atherectomy, cutting and / or scoring balloons, and / or the like.

A catheter system (100) usable for treating a treatment site (106) within or adjacent to a vessel wall (108A) of a blood vessel (108) or a heart valve within a body (107) of a patient (109), the catheter system (100) can include an energy source (124) that generates energy, a catheter (102) that includes an energy guide (122A) that receives the energy from the energy source (124), and a system controller (126) that is coupled to the energy source (124), the system controller (126) being configured to: (i) monitor real-time operating parameters of the catheter system (100), including at least energy delivery characteristics and treatment site conditions, (ii) detect and identify operating parameters that require adjustment, (iii) automatically adjust operating parameters, and (iv) dynamically provide a summary of system status, treatment progress, and actionable alerts.

The invention relates to the technical field of medical apparatus and instruments, and discloses an ultra-pulse thulium fiber laser therapy apparatus, which comprises a laser, a coupler, a lithotripsy energy transmission optical fiber, a thulium fiber laser head, an electrical device, a mainboard, an air cooling device and an equipment case, the laser is of an all-fiber structure and outputs 1940-nanometer near-infrared laser, the 1940-nanometer near-infrared laser is transmitted to the thulium fiber laser head through the thulium-doped double-clad fiber, and a collimating lens set is arranged at the light emitting end of the laser head and used for shaping the laser into collimated light beams. An aspheric focusing lens and an optical fiber clamping mechanism are arranged in the coupler, and the coupler is used for focusing the collimated light beam into the lithotripsy energy transmission optical fiber; the lithotripsy energy transmission optical fiber is a multimode quartz optical fiber, the end face is polished and plated with an anti-reflection film, one end is connected with the coupler through an FC / APC interface, and the other end is connected with an external replaceable treatment handle; and the electrical device is electrically connected with the mainboard. According to the invention, efficient and intelligent heat dissipation management is realized, and the energy transmission efficiency and the output stability are improved.

The invention relates to the technical field of medical image processing, and discloses a PCNL fusion image puncture and lithotripsy navigation method and equipment based on optical positioning. The method comprises the following steps: acquiring a real-time ultrasonic image of a target object, and fusing the real-time ultrasonic image with a pre-acquired three-dimensional CT image of the target object to obtain a fused image; establishing a simulated skin-kidney channel according to the fused image; wherein the simulated skin-kidney channel is used for assisting in constructing a lithotripsy path for a target object; acquiring pose information of a navigation marker of the endoscope relative to the target object in real time, and displaying the pose information in the three-dimensional CT image in real time to obtain a target three-dimensional CT image displaying the pose information of the navigation marker of the endoscope in real time; wherein the target three-dimensional CT image is used for assisting in navigating the lithotripsy position of the target object.

Provided herein are methods and systems for treating a target area of a body lumen using an intravascular lithotripsy catheter, the method comprising: receiving, at a computing system, patient-specific information for a patient that has the at least partially occluded body lumen; determining, by the computing system, at least one parameter of a treatment of the at least partially occluded body lumen with the intravascular lithotripsy catheter, wherein the at least one parameter is determined by processing the patient-specific information with at least one machine learning model; and displaying, by the computing system, guidance for treating the at least partially occluded body lumen with the intravascular lithotripsy catheter based on the at least one parameter, wherein treating the at least partially occluded body lumen with the intravascular lithotripsy catheter comprises the intravascular lithotripsy catheter generating at least one shock wave.

A shock wave catheter for performing endovascular lithotripsy (IVL) is provided. The catheter includes an elongation tube having a central longitudinal axis, an inclusion sealed at the distal end of the elongation tube, and an adjustable emitter assembly disposed within the inclusion. The emitter assembly includes, in a first configuration, a shock wave generating emitter that is closer to the central longitudinal axis of the catheter, and in a second configuration, a shock wave generating emitter that is further from the central longitudinal axis than in the first position and is at least one laterally movable or positionable. Various embodiments include support structures for the emitter, multiple balloons for positioning the emitter, spiral ribbons, angled emitter ports, and other exemplary features for moving and / or positioning the emitter. Systems and methods for treating lesions in body luminals are also provided herein.

The invention provides a special rotatable stone breaking and removing mesh basket under a biliopancreatic duct endoscop.The rotatable stone breaking and removing mesh basket comprises a tube shell, a drill bit cap, a mesh basket body, a drill bit, a traction part and a push-pull handle, one end of the tube shell is in driving connection with external driving equipment, the push-pull handle is slidably connected to the tube shell, the traction part is located in the tube shell, and the drill bit cap is connected with the mesh basket body. The two ends of the traction part are fixedly connected with the push-pull handle and the net basket respectively; the mesh basket penetrates through the drill bit and is fixedly connected with the drill bit cap; the push-pull handle can pull the traction part, the mesh basket and the drill bit cap to move back and forth when moving back and forth along the tube cavity of the tube shell under the action of external force, so that the mesh basket has an open state and a closed state, the mesh basket can sleeve stones in the open state, and the mesh basket can tighten the stones to the drill bit in the closed state. When the handle is pulled backwards, the drill bit pierces into the stone, external driving equipment drives the drill bit to rotate to break the stone, and the stone breaking and removing efficiency and accuracy are effectively improved.

The invention discloses a ureter guiding sheath. The ureter guiding sheath comprises a first sheath tube and a second sheath tube connected with the first sheath tube. Wherein the first sheath tube has a first diameter size, the first sheath tube comprises a first soft sheath tube and a first hard sheath tube, the first soft sheath tube has a first hardness size, the first hard sheath tube has a second hardness size, and the first hardness size is smaller than the second hardness size; the second sheathing canal comprises a second transition sheathing canal and a second flaring sheathing canal; the first end of the second transition sheath tube is connected with the first hard sheath tube, the second transition sheath tube has a second transition diameter size, and the second transition diameter size is larger than or equal to the first diameter size; one end of the second flaring sheathing canal is connected with the second end of the second transition sheathing canal, the second flaring sheathing canal has a second flaring diameter size, and the second flaring diameter size is larger than or equal to the second transition diameter size. According to the scheme, the broken stone cleaning efficiency can be improved.

A medical device may include an elongated body, a balloon positioned at a distal portion of the elongated body, and one or more pressure-wave emitters positioned along a central longitudinal axis of the elongated body within the balloon. The one or more pressure-wave emitters may be configured to propagate pressure waves radially outward through the fluid to fragment a calcified lesion at the target treatment site. The at least one of the one or more pressure-wave emitters may comprise an electronic emitter including a first electrode and a second electrode. The first electrode and the second electrode may be arranged to define a spark gap between the first electrode and the second electrode, and the second electrode may comprise a portion of a hypotube.

The invention discloses urinary surgery calculus smashing and sucking equipment, and relates to the technical field of medical instruments, the urinary surgery calculus smashing and sucking equipment comprises a sucking equipment body, a flushing pipeline detection mechanism is arranged on one side of the sucking equipment body, a negative pressure pipeline detection mechanism is arranged on one side of the sucking equipment body, and the flushing pipeline detection mechanism comprises a detection module; the urinary surgery calculus crushing and sucking equipment comprises a sucking equipment body, a flushing pipeline and a detection module, the detection module is arranged on one side of the sucking equipment body, the detection module can detect the leakage condition of the flushing pipeline and keep the flushing pipeline in a normal working state, and the flushing pipeline detection mechanism further comprises a discharging module which is arranged on one side of the sucking equipment body. The sealing condition can be detected through the negative pressure pipeline detection mechanism, and by arranging the detection module, the discharging module and the negative pressure pipeline detection mechanism, the problem that when equipment is used again, the operation is suspended due to the failure of a sealing ring and the like can be effectively solved.

A lithotripsy device for tunneling through vascular occlusions comprises a tunneling catheter including a tunneling catheter shaft having a distal end and a proximal end. A tunneling probe is disposed on the distal end of the tunneling catheter shaft. The tunneling probe has a pair of electrodes; each electrode being operatively connected to an electrical lead within the tunneling catheter shaft. The leads are configured for operative connection to an external pulse generator. Activation of an external pulse generator operatively connected to the leads causes repeated electrical discharges between the electrodes. When the electrodes are an in a fluid, the repeated electrical discharges produce repeated hydraulic shock waves in the fluid directed away from the electrical discharges. When the repeated hydraulic shock waves strike calcified tissue, the calcified tissue is broken into a modified plaque. The modified plaque has a lower resistance to mechanical dislocation that the original calcified tissue.

Embodiments are disclosed of an intravascular lithotripsy (IVL) catheter. The IVL catheter includes a catheter shaft having a proximal end and a distal end. A balloon is positioned at or near the distal end of the catheter shaft. The balloon has a distal end and a proximal end and includes a distal shoulder at the distal end of the balloon and a proximal shoulder at the proximal end of the balloon. The distal shoulder has a lower shoulder angle than the proximal shoulder. A plurality of spaced-apart emitters are positioned inside the balloon.

The invention discloses an ultrasonic-assisted positioning lithotripsy device and a method thereof, and relates to the technical field of positioning lithotripsy. According to the ultrasonic-assisted positioning lithotripsy device and method, the movable assembly controls the ultrasonic probe to conduct ultrasonic detection on the front face and the back face of a patient, the position of a calculus is determined in an auxiliary mode, and the position of the patient does not need to be adjusted after the patient lies flat in a two-way detection mode; particularly, the problem that a patient feels uncomfortable due to the fact that the patient needs to adjust the body position in cooperation with traditional auxiliary positioning equipment is solved on the equipment, particularly, after a calculus patient has an adaptive symptom, the patient feels serious uncomfortable when the body position is adjusted, and the patient with a large body type can be detected in a two-way mode as well. And the position of the detection probe is adjusted according to the body type of the patient so as to be matched with the body type of the patient, so that the detection efficiency of the detection probe is further improved.

A method for manufacturing a catheter (102) including a rapid exchange port (157), the method comprising the steps of creating a port (258) in a catheter shaft (210), inserting a port tube (360) into the port (358), skiving the port tube (360) flush with the catheter shaft (310), inserting a guidewire lumen (718) into the port tube (760), coupling the guidewire lumen (718) to the port tube (760), and skiving the guidewire lumen (718) flush with the catheter shaft.

1. The name of the design product: pet shockwave therapy machine. 2. The use of the design product: the design product is used for pet lithotripsy. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

A lithotripsy system can include a lithotripsy device and controller circuitry. The device for acoustic calculi fracture can include an acoustic treatment probe for providing acoustic energy along the probe to treat one or more calculi and an evacuation pathway extending at least partially via the prob, for removing at least a portion of the one or more calculi via the evacuation pathway. The controller circuitry, coupled to the lithotripsy device, can be configured to receive an indication of clogging of the evacuation pathway and at least one of initiate or adjust a anti-clogging mode for changing at least one characteristic of evacuation via the evacuation pathway in response to the received indication of clogging.

The invention discloses an automatic lithotripsy method, system and device and a storage medium, point cloud data is obtained by using a laser radar, the positions and the number of stones are determined through the processes of division, clustering and the like on the basis of the obtained point cloud data, and the crushing point coordinates and the crushing direction vector corresponding to each stone are determined to determine the crushing point coordinates and the crushing direction vector corresponding to each stone. Therefore, accurate lithotripsy parameters can be obtained, and the lithotripsy device can be controlled to complete automatic lithotripsy by using the lithotripsy parameters. Compared with an image processing mode, the method has the advantages that the accuracy of coordinate detection of the crushing point can be effectively guaranteed, meanwhile, the crushing direction vector can be constructed, namely, the stone crushing direction is given, and the automatic stone crushing effect is further guaranteed.

A catheter system (100) for treating a treatment site (106) within or adjacent to a vessel wall (108A) of a blood vessel (108), or within or adjacent to a heart valve, includes an energy source (124) and a system controller (126). The energy source (124) generates a plurality of energy pulses. The system controller (126) includes a processor that controls the energy source (124). The system controller (126) is configured to implement an energy control algorithm to control both of (i) a pulse frequency of the plurality of energy pulses, and (ii) an energy level for each of the plurality of energy pulses that are generated by the energy source (124). As the pulse frequency of the plurality of energy pulses increases, the energy level for each of the plurality of energy pulses decreases.

The present disclosure provides a catheter for treating lesions in a body lumen, such as calcified lesions and occlusions in vasculature. The catheter can include a dual-layer electrode assembly having a first conductive sheath and a second conductive sheath arranged circumferentially therearound. In some implementations, a first conductive sheath can be a flat coil. When a voltage is applied across the conductive sheaths, current flows across an arcing region, for example, from the distal side edge of the first sheath to the distal side edge of the second sheath to produce shock waves and / or cavitation bubbles. As a treatment continues, the sheaths slowly erode at the arcing region where current flows between the sheaths. To increase the lifespan of the electrode assembly, the distal side edges of the sheaths may be shaped to promote erosion of the sheaths in a predetermined or semi-controlled pattern.

Catheters configured to substantially simultaneously cut or score a lesion and deliver a pressure wave to the lesion. An illustrative catheter may comprise a catheter shaft, an expandable member secured to a distal portion of the catheter shaft, a cutting member secured to the expandable member, and an ultrasound transducer disposed within the expandable member. Tethers may be attached between the expandable member and the emitter that self-orientate the emitter towards target tissue due to uneven expansion of expandable member due to different compliance between target tissue and surrounding tissue.

Fault detection of an intravascular lithotripsy (IVL) device and a circuit including one or more transmitters. The balancing current circuit comprises a high voltage power supply, a control device or console, and at least one emitter comprising a pair of electrodes between which a spark is to be generated. Under normal working conditions, voltage is applied through the two conductors, a closed circuit is formed, and current flows between the two conductors when sparks occur. In normal cases, the current IC on the first conductor from the console to the transmitter is the same as the current IR on the second conductor from the transmitter back to the high voltage power supply. In this case, the circuit is in a balanced state. In such a balanced state, there is no sign of current leakage of the circuit. In the imbalance state of the circuit, the current IC is compared with the current IR, showing the current amplitude difference of the pulse over time during the pulse period. Specifically, when the current IR is less than the current IC, there is a circuit imbalance, which indicates a loss or leakage of the current IF.

An exemplary catheter for generating shock waves includes a catheter body; an enclosure mounted to the catheter body; an emitter band positioned at least partially around the catheter body and within the enclosure; and at least three electrodes positioned adjacent to the emitter band and spaced apart from the emitter band by respective spark gaps, the at least three electrodes together with the emitter band forming electrode pairs of at least three shock wave emitters of the emitter band, wherein at least one of the at least three shock wave emitters can be driven separately from at least one other of the at least three shock wave emitters.