153 results about "Lithotripsy" patented technology

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.

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 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.

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.

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.

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.

A catheter system for treating a treatment site within or adjacent to a vessel wall includes a light source, a balloon, a light guide, and an optical analyzer assembly. The light source generates light energy. The balloon is positionable substantially adjacent to the vascular lesion. The balloon has a balloon wall that defines a balloon interior that receives a balloon fluid. The light guide receives light energy from the light source at a guide proximal end and guides the light energy toward a guide distal end and into the balloon interior. The optical analyzer assembly is configured to optically analyze light energy emitted from the guide proximal end of the light guide.

Systems configured for performing atherectomy and pulsatile intravascular lithotripsy are provided. Aspects of the systems include a console; and a handle, wherein the handle is configured to be interchangeably operably connectable to: an atherectomy subsystem, and a pulsatile intravascular lithotripsy subsystem. Also provided are components of the systems that include the same. The systems and assemblies find use in a variety of different applications, including combined atherectomy and pulsatile intravascular lithotripsy procedures as well as balloon angioplasty applications.

The utility model discloses an auxiliary post-lithotripsy calculus removing instrument which comprises an in-vitro vibration calculus removing bed and further comprises an inflatable cushion arranged on the in-vitro vibration calculus removing bed. Connecting cloth is arranged on the inflatable cushion, a transverse plate is arranged on the connecting cloth, and a plurality of second protruding parts are arranged in the length direction of the transverse plate; a limiting part is arranged on the in-vitro vibration calculus removing bed, and a plurality of first protruding parts which are clamped and matched with the second protruding parts in a staggered mode are arranged on the limiting part. According to the auxiliary stone removing instrument used after the lithotripsy operation, the inflatable cushion is inflated, so that the gap between a patient and the bandage is filled with the inflatable cushion, the patient is limited, operation is convenient, filling and limiting can be conducted more sufficiently when the inflatable cushion is inflated, the effect is better, and the working efficiency is improved. The second protruding part on the transverse plate is clamped and matched with the limiting part and the first protruding part in a staggered mode to fix the transverse plate, and meanwhile the clamping position of the transverse plate in the limiting part can be changed, so that the device adapts to patients of different body types.

The utility model discloses a calculus filtering collector, which relates to the technical field of medical instruments and comprises a storage box, a flow guide pipe is fixedly connected to the rear side of the storage box in a penetrating manner, a handle is fixedly connected to the rear side of the top of the storage box, and a filtering pipe is arranged at one end of the flow guide pipe. The filter pipe penetrates through and is movably connected to the front side of the top of the storage box, and the bottom of the front side of the storage box penetrates through and is fixedly connected with a discharging port. The utility model discloses a novel structure. Urine obtained after lithotripsy of a calculus patient is poured into the flow guide pipe and flows in the flow guide pipe, meanwhile, the filter pipe is inserted into the storage box at the top and continues to slide downwards to be fixed, and when the urine flows into the storage pipe through the flow guide pipe and the storage pipe, the urine is filtered through the filter screen at the bottom at the moment; the calculus particles in the urine are left in the storage tube, and the urine flows downwards into the storage box, so that the effect of quickly filtering the calculus is realized, and meanwhile, the filtered calculus can be conveniently stored and taken out.

Included in the present disclosure is a system, including an elongated body having a guidewire lumen. In some embodiments, the system includes a pressure wave emitter disposed about the elongated body and having an optical fiber configured to transmit laser energy into a fluid to create plasma, a cavitation, or both, in the fluid, such that the laser energy is configured to enable a pressure wave to be generated. According to some embodiments, the system includes a generator configured to couple with the pressure wave emitter and deliver the laser energy thereto via an optical pathway. The system may include a detector configured to detect i) an aspect of the laser energy along the optical pathway, ii) an aspect of the optical fiber, or iii) both.

This invention provides a method for processing an ultrafine lithotripsy probe, comprising the following steps: S1. Inserting one end of the probe body into the mounting hole of the probe base to complete the initial assembly; S2. Placing the initially assembled ultrafine lithotripsy probe into a pressing device and fastening the probe body to the column of the pressing device, so that the probe base is located inside the heating coil of the heating machine; S3. Starting the heating machine to heat the probe base, and when the probe base reaches a predetermined state, using the pressing device to press the probe body into the mounting hole to a predetermined depth; S4. After pressing, removing the ultrafine lithotripsy probe and performing a cooling treatment. The ultrafine lithotripsy probe produced by this processing method has the advantages of tight assembly between the probe body and the probe base, low ultrasonic transmission loss, and the connection between the probe body and the probe base is not easily broken under high-frequency ultrasonic vibration, resulting in high lithotripsy efficiency.

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.

This invention provides an ultrafine lithotripsy probe, comprising a probe base and a probe body. One end of the probe base has a mounting hole for installing the probe body. The probe body is installed in the mounting hole using an interference fit. The overall length of the ultrafine lithotripsy probe is 550mm–610mm, and the diameter of the probe body is 1.1±0.2mm. This invention can directly reach the stone lesion location through natural body cavities such as the ureter, without requiring minimally invasive perforation of the body surface, resulting in minimal trauma. Simultaneously, its structural dimensions are rationally configured, with high ultrasonic vibration transmission efficiency, excellent overall bending and fracture resistance, and is not easily broken, thus meeting the clinical needs for non-invasive lithotripsy of urinary tract stones.

The invention relates to the technical field of medical instruments, in particular to a medical ultrasonic lithotripsy probe which comprises a rod body, a first fixing ring and a second fixing ring, tightening ropes are fixedly connected between the first fixing ring and the second fixing ring, a grip is fixedly connected to one side of the rod body, a hose body is fixedly connected to the other side of the rod body, and the hose body is fixedly connected to the other side of the rod body. A rod head is fixedly connected to one side of the hose body, a plurality of sliding grooves are formed in the grip, guide grooves are formed in the positions, corresponding to the sliding grooves, of the interior of the grip, lubricating mechanisms are arranged in the positions, corresponding to the sliding grooves, of one side of the grip, transmission mechanisms are arranged in the guide grooves, a mounting disc is fixedly connected to the rod head, and the mounting disc is fixedly connected to the rod head. A plurality of mounting grooves are formed in one side of the mounting disc, pulling blocks are slidably connected to the positions, corresponding to the mounting grooves, of the other side of the mounting disc, and the stone breaking probe has the beneficial effects that the alignment angle of a rod head of the stone breaking probe can be conveniently adjusted, a tightening rope can be conveniently replaced, and the cleanliness of the whole stone breaking probe is kept.

A lithotripsy balloon catheter may include a shock wave emitter that is selectively movable longitudinally within the balloon to adjust a longitudinal position of the shock wave emitter relative to the balloon. A lithotripsy balloon catheter may include a unipolar electrode that produces an electrical arc when a voltage is applied to the unipolar electrode thereby creating a shock wave within the balloon. A grounding conductor for the shock wave emitter may be coupled to the proximal end portion of the catheter body and configured to be connected to ground. A lithotripsy balloon catheter may include a unipolar electrode in communication with an electrical source of energy and configured to deliver energy from the electrical energy source to the fluid in the balloon thereby creating a shock wave within the balloon. Ceramic insulation may be disposed on the unipolar electrode to focus energy at a tip of the unipolar electrode.

Improved IVL systems and components having a reduced tendency for failure caused by undesirable electrical arcing and / or current flow and / or plasma discharge between IVL emitters and a deployed balloon. Additionally, or alternatively, the present invention provides improved IVL systems and components having a reduced tendency for failure caused by possibility of undesirable electrical discharge and / or electrical arcing and / or current flow between the deployed balloon and tissue. This undesirable flow of energy may occur during therapy delivery but may also occur during pauses or at the end of therapy pulses due to a prolonged charging of the fluid solution in the balloon and its effects outside of the balloon.

A system and method for modifying calcifications on a heart valve includes a dual-function heart valve catheter for performing a cutting operation and an intravascular lithotripsy (IVL) operation. The dual-function heart valve catheter includes an inflatable balloon having a cutting feature on an outer surface of the balloon such that, when the balloon is inflated, the cutting feature cuts or abrades calcification regions on the heart valve. The dual-function heart valve catheter includes first and second electrodes inside the balloon for generating a high voltage pulse from an electrical source, thereby creating a spark through a conductive medium inside the balloon to perform IVL on the calcification regions. The cutting and IVL operations can be repeated as appropriate to effectively treat the calcium legions, including moving and repositioning the catheter within the heart.

The invention discloses an application of a fibroblast growth factor 2 in preparation of a medicine for preventing and / or treating calcium oxalate kidney stone, and breaks through the technical prejudice that FGF-2 mainly promotes renal fibrosis in the prior art. It is found and proved for the first time that exogenous supplement FGF-2 can play a significant therapeutic effect in a calcium oxalate kidney stone model. Animal experiments prove that through intraperitoneal injection of FGF-2 (0.1 mg / kg / day), calcium salt crystal deposition in kidney tissue can be effectively reduced (Von Kossa dyeing verification), structural damage of renal tubular epithelial cells is relieved, inflammatory response is inhibited (HE dyeing verification), and meanwhile the serum creatinine and urea nitrogen level is remarkably improved. The invention provides a brand new molecular target and drug strategy for treatment of kidney stone, can be used as an effective auxiliary scheme of the existing physical lithotripsy technology, and reduces the risk of stone residue and recurrence.

The invention discloses a disposable ureter lithotripsy and calculus discharging device, and belongs to the technical field of urinary surgery minimally invasive surgical instruments, and the disposable ureter lithotripsy and calculus discharging device comprises a disposable ureteroscope, comprising a head end seat, a camera module assembled on the head end seat, a temperature and pressure sensor assembled on the head end seat, a snake bone connected with the head end seat, and a hose connected with the snake bone, the head end seat is provided with at least two channels; wherein one channel is configured as a water injection channel, and the other channel is configured as a suction intervention channel; the handle assembly is connected with the insertion assembly; according to the disposable ureteral lithotripsy and lithotripsy device, a traditional lithotripsy and lithotripsy operation mode is changed, and the problems that a traditional ureteral lithotripsy and lithotripsy system is complex in operation and large in material consumption, real-time temperature and pressure monitoring cannot be conducted, and the temperature and pressure in the body cannot be adjusted are solved.