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94 results about "Dormia basket" patented technology

Dormia basket a tiny apparatus consisting of four wires that can be advanced through an endoscope into a body cavity or tube, manipulated to trap a calculus or other object, and withdrawn.

Folding type clamping device

The invention discloses a folding type clamping device, relates to the technical field of medical instruments, and is suitable for working channels of superfine endoscopes such as a breast duct endoscope. The clamping device comprises a clamping assembly, a transmission assembly, a limiting assembly and an operation assembly. The clamping assembly comprises a metal pipe body and an integrally-formed retractable net basket structure, the transmission assembly is a traction steel wire with the front end connected with the net basket structure, the limiting assembly limits the stroke of the traction steel wire through a bridge type metal pipe and a movable pin, and the operation assembly drives the traction steel wire to move. The mesh basket structure is in a closed state without external force and can be inserted into an endoscope channel; after the tissue leaves the channel, the operation assembly drives the traction steel wire to control the net basket to open and close to clamp the tissue in combination with visual observation. The device is made of medical stainless steel, is a disposable sterilized product and can be used after being disassembled. The device breaks through the sampling bottleneck of a superfine endoscope, sampling is stable and safe, early diagnosis of breast diseases is assisted, and the clinical value of the endoscope is improved.
Owner:OUPAI MEDICAL TECH (GUANGZHOU) CO LTD

Guide wire calculus removal mesh basket and application thereof

The invention provides a guide wire calculus removing mesh basket and application thereof. The guide wire calculus removing net basket comprises a net basket body, a guide wire, a net basket cap, an outer sheath tube and a handle, the tail end of the guide wire is connected with the head end of the net basket cap, the net basket cap is arranged outside the head end of the outer sheath tube, the net basket body is inserted into the outer sheath tube through the tail end of the outer sheath tube, one end of the net basket body is connected with the tail end of the net basket cap, and the other end of the net basket body is connected with the handle. The handle is located outside the tail end of the outer sheath tube. The device can be inserted through various instrument channels such as a nipple incision knife, SpyGlass or a pancreatic and biliary duct imaging system forceps channel, and multi-scene calculus removal treatment is achieved; in the process of releasing the mesh basket, the head end of the soft guide wire crosses the calculus and enters the bile duct at the far end more easily, release of the mesh basket is facilitated, and the calculus can be extracted by pulling back the mesh basket.
Owner:SHANGHAI RUIFAN MEDICAL TECHNOLOGY CO LTD

Calculus removing and stone breaking handle and calculus removing and stone breaking integrated medical instrument

The invention discloses a lithotomy and lithotripsy handle and a lithotomy and lithotripsy integrated medical instrument, and belongs to the technical field of medical instruments, the lithotomy and lithotripsy handle comprises an operation part and a guide sheath tube capable of collecting a mesh basket, the guide sheath tube is installed on the operation part, the operation part is provided with an operation device, and the operation device at least has a lithotomy mode and a lithotripsy mode; the lithotomy and lithotripsy integrated medical instrument comprises a mesh basket and a lithotomy and lithotripsy handle. In the calculus removing mode, the operation device can convert external force applied by an operator into driving force for driving the mesh basket to move in the axial direction of the guiding sheath tube, and the mesh basket is driven to be released or recycled through the guiding sheath tube so that calculus removing can be achieved. In the lithotripsy mode, the operation device can convert external force applied by an operator into lithotripsy force for driving the mesh basket to be collected to the guiding sheath tube in the axial direction, so that the mesh basket collects the lithotripsy under the constraining force of the guiding sheath tube. The lithotripter has the advantages that lithotripsy can be carried out during lithotripsy in the bile duct and during lithotripsy, a lithotripsy handle does not need to be externally connected independently, economic cost is low, operation is easy, and the risk of cross infection is avoided.
Owner:MICRO-TECH (NANJING) CO LTD

Endoscope calculus removing mesh basket structure

In order to solve the problems that in the prior art, an endoscopic calculus removing mesh basket structure is poor in development in an operation and cannot be bent along with an endoscope at multiple angles, the endoscopic calculus removing mesh basket structure comprises a mandrel and a mesh basket assembly, the mandrel comprises a trunk section and a guide section, the guide section comprises a development spring tube, and the development spring tube is connected with the mesh basket assembly. The mesh basket assembly comprises mesh basket wires and a mesh basket structure, the mesh basket wires are connected with the mesh basket structure, the mesh basket structure is located at the end of the mandrel, the developing spring tube is arranged on the periphery of the mesh basket wires in a sleeving mode, and the mesh basket wires are memory metal wires. According to the endoscopic calculus removing mesh basket structure, the developing spring tube is connected with the mesh basket wire in the sleeved mode, so that the guiding section has the good memory metal function and twisting resistance performance, multi-angle smooth opening, closing and bending of the calculus removing mesh basket are achieved, the developing spring tube of the guiding section plays a developing role, and compared with an existing calculus removing mesh basket product, the endoscopic calculus removing mesh basket structure has the advantages of being simple in structure and convenient to use. And the effects of multi-angle bending in the calculus removing process of the calculus removing net basket and improvement of the calculus removing view definition can be taken into consideration at the same time.
Owner:COPPER MEDICAL TECH CO LTD

Basket catheter system and basket catheter calibration method

The application relates to the technical field of basket catheter, in particular to a basket catheter system and a basket catheter calibration method. The basket catheter system comprises a basket catheter, an operating handle, a tube body and a basket electrode assembly, the basket electrode assembly comprises a spline, a proximal end fixing seat and a distal end fixing seat, and the basket catheter system further comprises a proximal end position sensor and a distal end position sensor arranged on the proximal end fixing seat and the distal end fixing seat respectively; the basket catheter system further comprises a processing device, the proximal end position sensor and the distal end position sensor are connected with the basket catheter, and the processing device is used for obtaining a contact force of the basket electrode assembly and target tissue according to a proximal-distal end spacing change amount, a corresponding relationship between a known axial force value of the basket electrode assembly and the proximal-distal end spacing change amount and a contact angle of the basket electrode assembly and the target tissue. The application mainly solves the technical problem of how to detect the contact force of the basket catheter and the target tissue.
Owner:ENCHANNEL MEDICAL GUANGZHOU INC

A basket catheter

This application provides a basket catheter, which includes flexible circuit strips, an elastic support, basket electrodes, and a core rod. The flexible circuit strips are respectively arranged on the inner and outer surfaces of the elastic support, and multiple basket electrodes are disposed on the flexible circuit strips. The basket electrodes can be switched between a contracted state and an expanded state by operating the core rod. The basket electrodes on the inner surface of the elastic support are configured not to contact tissue. Accurate localization of key conduction areas through high-density sampling within the cardiac chambers allows for a clearer elucidation of the arrhythmia matrix, thereby providing better mapping and / or ablation results.
Owner:SHANGHAI MICROPORT EP MEDTECH CO LTD

Disposable endoscope calculus removing mesh basket

The utility model discloses a disposable endoscopic calculus removing mesh basket, and belongs to the field of endoscopic calculus removing mesh baskets. The disposable endoscope calculus removing mesh basket comprises a calculus removing mesh basket assembly, the calculus removing mesh basket assembly comprises a handle part and a connecting seat arranged at the lower end of the handle part, a catheter is installed at the lower end of the connecting seat, and a mesh basket body is arranged at the lower end of the catheter. One end of the mesh basket body is connected with a guide mesh basket body, an inner arm of the mesh basket body is further provided with an anti-skid protrusion, and an anti-disengaging piece is arranged on the outer side of the mesh basket body. The anti-skidding protrusions can be evenly arranged on the mesh basket body through the adhesive tape layer, when an endoscope is used, the end cap can play a certain guiding role, then the mesh basket body is used for removing stones, the stones can be stably grabbed through the evenly-distributed anti-skidding protrusions, and therefore the purpose of removing the stones is achieved. The stone mesh basket has the advantages that the stone mesh basket is not prone to falling off, stone removal is facilitated, and repeated stone removal operation is avoided.
Owner:JIANGSU LIANSHENG MEDICAL EQUIP CO LTD

Ball head locking mechanism of basket catheter and basket catheter

The present invention relates to the technical field of medical instruments. Disclosed are a ball head locking mechanism of a basket catheter and a basket catheter. The ball head locking mechanism comprises a ball head screw, a ball head thread insert and a restraining ring, wherein the ball head screw is threadedly connected to the inner side of the ball head thread insert, and the outer wall of the ball head thread insert is of a slope structure. In the present invention, the ball head screw and the ball head thread insert which are in threaded fit are screwed together, and end portions of nickel-titanium sheets of a basket structure are effectively pressed against the slope structure by means of the restraining ring, thereby achieving effective locking and avoiding the use of glue bonding to reduce the risk of detachment. In addition, the ball head thread insert can further be in the form of a combination of an expansion ring and a compression thread insert. When the ball head screw and the compression thread insert are rotated relative to each other and tightened, the ball screw and the compression thread insert can also jointly compress the expansion ring, so that the expansion ring expands outwards to press against the nickel-titanium sheets, thereby further assisting in locking the nickel-titanium sheets, and ensuring the locking effect.
Owner:SHANGHAI SHINEYO MEDICAL (GRP) CO LTD +1

Ablation catheter

The invention relates to the technical field of medical instruments, and provides an ablation catheter which comprises an outer tube and an inner tube. The near end of the inner tube assembly can be movably inserted into the outer tube in the axial direction of the outer tube; the mesh basket electrode assembly comprises a plurality of electrode arms, and the plurality of electrode arms are emitted from the far end of the inner tube assembly and are gathered together at the far end of the outer tube; the far end of the inner tube assembly is provided with a plane structure, so that a plane end is formed at the far end of the ablation catheter after the inner tube assembly is connected with the far end of the mesh basket electrode assembly. According to the ablation catheter provided by the invention, the far end of the inner tube assembly is provided with the plane structure, so that the plane end head is formed at the far end of the ablation catheter after the inner tube assembly is connected with the far end of the mesh basket electrode assembly. The risk that the head end of the ablation catheter punctures the inner wall of the heart cavity can be reduced.
Owner:APT MEDICAL HUNAN INC +1

Gastrolithiasis crushing device under digestive endoscopy

The invention belongs to the field of medical instruments, and provides a gastroendoscopic gastric calculus crushing device which comprises a control assembly, the control assembly comprises a shell and a handle, and the handle is fixedly mounted on the right side surface of the shell; the adjusting assembly is mounted on the surface of the bottom side of the shell; the stretching-in mechanism is installed on the surface of the bottom side of the shell, and the stretching-in mechanism is used for stretching into the stomach of a patient; the crushing assembly is mounted in the bottom end of the stretching mechanism, and the crushing assembly is used for crushing the gastric calculi; under the action of a vibration motor, the vibration motor acts on a tool apron to move, the tool apron drives a smashing cutter to conduct smashing, a steel wire rope drives a net basket to move, the net basket conveniently drives broken stones to move, continuous material supplementing is facilitated, the stone smashing efficiency is improved, the stone smashing effect is met, and after the attached broken stones are squeezed away through a cleaning plate, it is guaranteed that the surface of the smashing cutter is clean; the crushing cutter is convenient to operate and use.
Owner:HARBIN MEDICAL UNIVERSITY

Interchangeable stone taking and crushing mesh basket

The utility model discloses an interchangeable stone taking and crushing net basket, and relates to the technical field of medical instruments, the interchangeable stone taking and crushing net basket comprises a handle, a metal sheathing canal, a plastic sheathing canal and a traction steel wire, the metal sheathing canal and the plastic sheathing canal are detachably connected with the handle, a finger sleeve is slidably arranged on the handle, and the traction steel wire is arranged on the finger sleeve. And the traction steel wire is arranged in the metal sheath tube or in the metal sheath tube in a penetrating manner and is detachably connected with the fingerstall. In the calculus removing process, the plastic sheath tube and the metal sheath tube can be conveniently interchanged for use, so that repeated insertion and withdrawal of an endoscope and a calculus net basket are not needed, the operation difficulty is effectively reduced, and the operation inconvenience of an operation is reduced to a certain extent.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV

Variable-diameter spiral calculus removing mesh basket under choledochoscope

The invention relates to the technical field of medical instruments, in particular to a variable-diameter spiral choledochoscope calculus removal mesh basket which comprises a base body and a handle arranged at the rear end of the base body, a telescopic pin pipe is arranged at the front end of the base body, a regulation and control guide wire is connected to the handle and penetrates through the base body and the telescopic pin pipe, and the telescopic pin pipe is connected to the handle. The near end of the spiral mesh basket body is fixedly connected to the end of the regulation and control guide wire, a front end cap is arranged at the far end of the spiral mesh basket body, and when the calculus removing mesh basket is used, the regulation and control guide wire is driven by the push-pull assembly to slide back and forth relative to the telescopic pin pipe, so that the spiral mesh basket body can contract in the telescopic pin pipe, that is, the spiral mesh basket body becomes small in the radial direction; or the telescopic pin pipe is pushed out to expand outwards, namely, the telescopic pin pipe is enlarged in the radial direction, stepless continuous adjustment of the diameter of the mesh basket is achieved, meanwhile, the adjusting and controlling guide wire and the spiral mesh basket body fixed to the adjusting and controlling guide wire are driven by the rotating assembly to rotate synchronously, the spiral mesh basket body can spirally tighten or loosen around the axis of the spiral mesh basket body, and therefore the wrapping and locking effects on calculi are enhanced.
Owner:ZHANGJIAGANG FIRST PEOPLES HOSPITAL

Novel drainage tube capturing device

The embodiment of the invention relates to the technical field of medical auxiliary equipment, in particular to a novel drainage tube capturing device. A novel drainage tube capturing device comprises a net basket, a first catheter, a second catheter, a sliding block and a handle, the second catheter is sleeved with the first catheter, the first catheter is connected with the handle, the sliding block is arranged on the handle in a sliding mode, the sliding block is connected with the second catheter, and the sliding block pushes the second catheter to move relative to the first catheter. The net basket is arranged at the tail end of the second guide pipe. According to the drainage tube capturing device, the tube inserting distance can be reduced, the time of the drainage tube in the mouth-nose exchange process can be shortened, the exchange process of the drainage tube can be completed in the oral cavity, meanwhile, the capturing condition of the drainage tube can be observed through an endoscope, exchange of the drainage tube can be completed more rapidly, and the operation efficiency is improved. Therefore, pain brought to a patient during intubation and extubation is reduced.
Owner:ZHEJIANG CHUANGXIANG MEDICAL TECH CO LTD

Foreign body basket

ActiveCN309418343SForeign matterDormia basket
1. Name of the design product: foreign body basket. 2. Use of the design product: for medical devices. 3. Design key points of the design product: lies in the shape. 4. Picture or photo that best shows the design key points: perspective view.
Owner:黄小芳

Non-destructive diagnosis and treatment system

The invention discloses a non-destructive diagnosis and treatment system which comprises an energy platform, a display platform, a visual tube mirror, a camera shooting assembly, a mesh basket assembly, an umbrella-shaped assembly, a direction adjusting assembly and the like, the umbrella-shaped assembly is passively opened when the mesh basket assembly passes through the umbrella-shaped assembly, and the umbrella-shaped assembly is automatically closed when the mesh basket assembly retracts into the visual tube mirror. According to the non-destructive diagnosis and treatment system, through the arrangement of the energy platform (host), the visual tube lens, the mesh basket, the matched tools and the like, non-destructive human body natural cavity operation can be achieved, and the situation that organs or tissues in a human body cavity are damaged by instruments in the visual diagnosis, stone breaking and stone removing processes is avoided; the injury to human tissues caused by instant high heat in the lithotripsy process is avoided, and the safety of lithotripsy operation is favorably improved. The non-injury diagnosis and treatment system can be applied to the non-injury urinary lithotripsy direction and the non-injury ERCP direction, and damage and function loss caused by cutting open sphincter to organs are avoided.
Owner:WUHAN HECHANG HUITONG MEDICAL TECH CO LTD

Calculus removing mesh basket for choledochoscope

The utility model provides a choledochoscope calculus removing net basket which comprises a metal net basket, an outer sheath tube and a handle, and the outer sheath tube is connected with the handle. The metal mesh basket comprises four mesh basket wires and a connecting rod, the head ends of the four mesh basket wires are fixedly connected together and are in an inverted omega shape, and the head end of the connecting rod is fixedly connected with the tail ends of the four mesh basket wires; the outer sheath tube comprises a drainage tube section I, a drainage tube section II and a drainage tube section III, and the head end of the metal net basket is contained in the drainage tube section I; the drainage tube section II is a four-channel tube, four channels I are formed in the drainage tube section II, and a mesh basket wire is accommodated in each channel I; the connecting rod is arranged in the drainage tube section III; the lower end of one side of the handle is biconcave, the upper end of the other side of the handle is provided with a push rod moving button, and a push rod is arranged in the handle and connected with the connecting rod and the push rod moving button. The calculi in the gall bladder or the bile duct can be extracted through the choledochoscope, the mesh basket wires form the spherical mesh basket from small to large when being led out through the four channels, the spherical mesh basket is stable in shape, and the calculi of different sizes can be extracted conveniently.
Owner:SHANGHAI RUIFAN MEDICAL TECHNOLOGY CO LTD

Mesh basket part of calculus removing mesh basket and calculus removing mesh basket system

The utility model relates to the technical field of medical instruments, in particular to a mesh basket part of a calculus removing mesh basket and a calculus removing mesh basket system.The mesh basket part comprises a connecting part, and the connecting part is connected with a traction part of the calculus removing mesh basket system so as to drive the mesh basket part of the calculus removing mesh basket to act; the main supporting arm is a main body part of the mesh basket part; one ends of the main supporting arms are connected with the connecting part, and the other ends of the main supporting arms are connected in a matched mode to form a net basket part.
Owner:HANGZHOU AGS MEDTECH CO LTD

Double-bend double-basket array electrode PFA mapping ablation catheter

The utility model discloses a double-bend double-basket array electrode PFA (perfluoroalkoxy) mapping ablation catheter, which relates to the technology of medical instruments and comprises a catheter body, one end of the catheter body leads out a guide wire from a guide wire outlet, the other end of the catheter body is connected to a catheter handle, and a first basket and a second basket are respectively arranged at the head end of the catheter body; and the catheter handle is connected with the catheter body part, a second mesh basket telescopic control wheel and a first mesh basket telescopic control wheel are arranged on the catheter handle, the second mesh basket telescopic control wheel and the first mesh basket telescopic control wheel are respectively connected with the corresponding traction wires, and the catheter handle leads out corresponding electrode tail wires and the other ends of the guide wires. According to the utility model, the double net baskets at the head part of the catheter can respectively or simultaneously enter and exit from the near end of the target pulmonary vein and cling to and leave from the vestibule of the pulmonary vein through retraction and extension.
Owner:SHAOXING MAYO XINCI MEDICAL TECH CO LTD

Heart treatment system

Disclosed are systems and methods of removing heart valve therapy. The systems and methods may include chordae cutting devices having unique shape memory curvature, capture basket catheters with mesh baskets, and leaflet cutting tools with unique shapes that may be pulled through leaflet tissue.
Owner:AMX TECHNOLOGIES LLC

Arresting device in blood vessel cavity

PendingCN120203698ASurgeryThrombusDormia basket
The invention relates to the field of medical apparatuses and instruments, in particular to a vascular intracavity capturing device which comprises a capturing net basket, a conveying pipe and a traction structure. The catching net basket is of a net structure with a cavity inside, the catching net basket comprises a first gathering end and a second gathering end which are oppositely arranged, and the first gathering end is fixedly connected with one end of the conveying pipe; the first end of the traction structure penetrates through the conveying pipe, then stretches into the capturing net basket and is fixedly connected with the second gathering end. Under the action of external force, the first end of the traction structure can reciprocate in the circumferential direction of the conveying pipe relative to the conveying pipe so as to drive the second polymerization end to move to form a closed state or an open state. By pulling the traction structure, the second polymerization end is driven to be switched from the open state to the closed state, so that the thrombus in the capturing net basket is prevented from falling off, and the capturing performance of the capturing net basket is guaranteed; meanwhile, the capturing net basket is switched into the closed state, the size is reduced, the capturing net basket smoothly moves in the blood vessel, and the use safety of the capturing device is improved.
Owner:SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD

Foreign matter cutter based on digestive endoscope

The invention relates to the technical field of digestive endoscopes, in particular to a foreign matter cutter based on a digestive endoscopy, which comprises an endoscope, the endoscope comprises an operating rod, the end part of the operating rod is provided with an insertion tube, the end part of the insertion tube is provided with an end head, the outer wall of the operating rod is fixedly connected with a handle, and an operating channel is arranged among the operating rod, the insertion tube and the interior of the end head; a transmission rod is arranged in the operation channel, an adjusting assembly is arranged in the end and movably extrudes the outer wall of the transmission rod, an opening and closing device is arranged at the end, penetrating out of the operation rod, of the transmission rod, and a cutting device is arranged at the end, extending out of the end, of the transmission rod. The cutting device comprises a clamping assembly, the clamping assembly is fixedly connected to the end, penetrating out of the end, of the transmission rod, a blade is arranged on the outer wall of one side of the clamping assembly, a net basket assembly is arranged on the outer wall of the side, opposite to the blade, of the clamping assembly, and the clamping assembly drives the blade to cut foreign matter while being opened and closed. The net basket assembly is used for collecting the cut foreign matter in time.
Owner:THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Catheter device for subsection bronchial lavage

The utility model provides a catheter device for subsection bronchial lavage, which comprises an inner catheter for lavage fluid injection and suction and a mesh basket mechanism for plugging and positioning, and the mesh basket mechanism is arranged on the outer side of the front end of the inner catheter; the mesh basket mechanism comprises a mesh basket body located on the inner side and a film sleeve located on the outer side, and the mesh basket body and the film sleeve are arranged in a stacked mode in the radial direction of the inner catheter. The mesh basket body is formed by weaving a plurality of filaments, and the filaments at least comprise shape memory alloy wires. The utility model can realize the positioning and plugging effect at the specified position in the subsection bronchial tube, the mesh basket mechanism automatically opens to achieve the plugging function, and the utility model has the advantages of convenient operation and strong practicability.
Owner:SUN YAT SEN UNIVERSITY CANCER CENTER (CANCER HOSPITAL AFFILIATED TO SUN YAT SEN UNIVERSITY CANCER RESEARCH INSTITUTE OF SUN YAT SEN UNIVERSITY)

Basket for removing calculus from biliary and pancreatic tract

The utility model relates to the field of calculus removing net baskets, and discloses a biliopancreatic duct calculus removing net basket which comprises a handle, five sliding rails are arranged in the handle, a handle is connected in the sliding rails in a sliding mode, transmission wires are fixedly connected to the right side of the handle, a net basket body is fixedly connected between the right ends of the five transmission wires, and the right ends of the five transmission wires are fixedly connected with the handle. The left side and the right side of the handle are both in threaded connection with caps, the right side of the cap on the right side is fixedly connected with a sleeve rod, the outer side of the sleeve rod is fixedly connected with an injection opening, the inner portion of the right side of the sleeve rod is fixedly connected with an outer sheath tube, and a fixing assembly is installed on the outer side of the injection opening and used for fixing a needle tube for injecting angiography agents. According to the calculus removing mesh basket, under the limitation of the sliding rail, the handle is pulled to drive the transmission wire to slide in the sleeve rod and the outer sheath tube, the mesh basket body is driven to work, the stable structure of the mesh basket can be damaged by moving the single transmission wire in and out, the calculus removing mesh basket is actively deformed, and calculus is released.
Owner:CHINESE PEOPLES ARMED POLICE FORCE CHARACTERISTIC MEDICAL CENT

Foreign object removal device

An embodiment of the present invention provides a foreign body removal device, which relates to the field of medical devices and includes a foreign body removal part, an adjustment part and an operation part. One end of the foreign body removal part is woven and bundled to form a bundling part. The operation part is fixedly connected to the end of the bundling part. The adjustment part is arranged around the outside of the bundling part, and one end of the adjustment part is fixedly connected to the operation part. The overall diameter of the foreign body removal device in this application is extremely thin. Compared with traditional stone extraction basket products, the overall diameter is reduced by more than 50%, and it can be directly inserted into smaller channels. It can easily reach positions such as the biliary tract and intestine, and at the same time, it can ensure the effective rotation of the foreign body removal part under various bends, greatly expanding the application range of the treatment of foreign bodies for stone extraction.
Owner:USHARE MEDICAL INC +1

Coaxial mesh basket negative pressure catheter

The utility model discloses a coaxial mesh basket negative pressure catheter, which relates to the technical field of stone removal medical instruments and structurally comprises a first tube and a second tube, and the first tube slides relative to the second tube. A net basket is arranged at the tail end of the first pipe; a stone crushing part sliding relative to the first pipe is arranged in the first pipe, an energy release part is arranged at the tail end of the stone crushing part, and the center of the mesh basket and the center of the energy release part are coaxial with the first pipe; the head end of the first pipe is bifurcated and is provided with at least two first interfaces or a connecting piece, and the connecting piece at least comprises three second interfaces; wherein one of the first interface or the second interface is connected with a negative pressure mechanism. According to the coaxial net basket negative pressure catheter, the stone is fixed in the net basket through the binding effect of the net basket, the position between the energy release part and the stone basically does not move relatively during stone crushing, the stone crushing efficiency is higher, and the operation time is shortened; other tissues are not damaged, and higher safety is realized; the lens is protected and is prevented from being damaged by gravel energy; and non-direct-vision touch typing is realized in combination with a contrast agent.
Owner:WUHAN HECHANG HUITONG MEDICAL TECH CO LTD

Foreign body removal device

PCT designated stageWO2026065790A1SurgeryBiliary tractDormia basket
Disclosed is a foreign body removal device, relating to the field of medical instruments. The foreign body removal device comprises a foreign body removal part (100), an adjustment part (200), and an operation part (500). One end of the foreign body removal part (100) is weaved and gathered to form a gathered part (120), the operation part (500) is fixedly connected to the tail end of the gathered part (120), the adjustment part (200) is annularly arranged on the outer side of the gathered part (120), and one end of the adjustment part (200) is fixedly connected to the operation part (500). The overall diameter of the foreign body removal device is extremely small, which is reduced by 50% or more compared with the overall diameter of a traditional stone removal basket product, and the foreign body removal device can be directly fed into a smaller cavity. The positions such as the biliary tract and the intestine can be easily reached, and meanwhile, the effective rotation of the foreign body removal part (100) can be ensured under various bends, thereby greatly expanding the application range of stone removal and foreign body treatment.
Owner:USHARE MEDICAL INC +1

Driving and control handle and calculus-extracting mesh basket

PCT designated stageWO2025228247A1SurgeryDormia basketApparatus instruments
The present application relates to the technical field of surgical medical instruments and particularly to a driving and control handle and a calculus-extracting mesh basket. The driving and control handle comprises an outer tube, an inner tube, a connector, and a rotary knob. The outer tube is provided with a limiting groove, and the inner tube comprises a fixed part and a sliding part. The sliding part is connected to the connector and provided with a first limiting piece. A sliding cavity is formed in the near end of the sliding part, and a mounting channel is formed in the fixed part. The fixed part comprises a sliding stage located at the far end, and a sliding stroke is formed between the sliding stage and the sliding cavity in an axial direction. The sliding part of the present application, as a part of the inner tube, is arranged in the outer tube and protected by the outer tube, reducing the exposed area of a reciprocating action gap, further reducing or eliminating the risk of clamping the palm and the probability of a foreign object falling into the reciprocating action gap, and improving the operational stability and convenience of the driving and control handle and the calculus-extracting mesh basket. Moreover, the outer tube and the fixed part can provide a fixed holding support part, further improving the comfort and convenience when an operator performs a holding action.
Owner:HUNAN VATHIN MEDICAL INSTR CO LTD

Calculus removal mesh basket assembly convenient for expanding nipple opening

The utility model relates to the technical field of ERCP operations, and discloses a calculus removing mesh basket assembly facilitating opening of a nipple opening. Comprising a beam tube, a movable lead screw, a mesh basket body, a fixed handle and a movable handle, wherein the movable lead screw is located in the beam tube, and the two ends of the movable lead screw penetrate out of the beam tube; the mesh basket body is arranged at the end of the movable lead screw; the fixed handle is arranged at the end, away from the mesh basket body, of the beam tube; a guide pipe extending in the beam tube direction is arranged on the outer wall of the beam tube, a hollow guide wire with the two ends penetrating out of the guide pipe is arranged in the guide pipe, a bent part used for being embedded into a nipple opening is integrally arranged at the end, close to the mesh basket body, of the hollow guide wire, and air bags used for expanding the nipple opening are arranged on the two sides of the bent part. An inflation nozzle used for being externally connected with inflation equipment is arranged at the end, away from the bent part, of the hollow guide wire, and when the two air bags are in an inflation state, the two air bags are in a V shape in the nipple opening, and a gap allowing the net basket body to penetrate through is formed in the middle of the two air bags.
Owner:THE FIRST AFFILIATED HOSPITAL HENGYANG MEDICAL SCHOOL UNIV OF SOUTH CHINA

Thrombectomy system

The application provides a thrombus removing support and system, and relates to the technical field of medical devices.The thrombus removing support comprises a support and a basket supported on a distal end section of an elongated operating rod, the support and the basket both have an expanded state relative to an initial state, the support comprises a frame body, the frame body has a shape expanded into a cage structure, and the frame body is used for cutting or scraping a thrombus; the basket comprises a rib and an aperture, and the basket is used for intercepting or capturing a free thrombus; a radial supporting force of the support is greater than a radial supporting force of the basket, or a radial supporting capacity of the support is greater than a radial supporting capacity of the basket; the thrombus removing support in the scheme combines the functions of cutting and capturing, and can process different types and states of thrombus in one operation.
Owner:ZHEJIANG BELONGS TO A MEDICAL INSTR