391 results about "Guide wires" patented technology

A sacroiliac (SI) joint implant assembly addresses SI joint dysfunction and degenerative sacroiliitis. The assembly includes a first implant body, a second implant body, and a piezoelectric layer positioned between them. The piezoelectric layer generates electrical charges when subjected to mechanical stress, stimulating bone growth and enhancing stability of the SI joint after surgery. The implant bodies may feature non-planar surfaces to distribute compressive and shear forces unevenly across the piezoelectric layer. The assembly can be secured using fasteners such as screws, pins, or brackets, and may include porous or fenestrated bodies made from materials like titanium or polymers. Some implant assemblies are designed for minimally invasive surgical procedures, with configurations that allow for precise placement using guide wires and imaging techniques. The assembly aims to stabilize the SI joint and promote bone fusion, leveraging the piezoelectric effect to improve the overall efficacy of the fusion procedure.

The application discloses a high-compliance temporary prostatic urethral stent with a cordless recovery system and belongs to the field of medical devices, which comprises a stent, a connecting sleeve is arranged on the stent, a guide wire is detachably arranged on the connecting sleeve, and a connecting line is arranged in the guide wire; a storage fixing sleeve is arranged on the outer side of the stent, the stent is stored in the storage fixing sleeve in an initial state; and a recovery system is further included, and the stent and the mechanical structure of the recovery system form a releasable locking cooperation in a recovery stage. The cordless magnetic recovery system is adopted to eradicate the pain and the risk of retrograde infection caused by the indwelling suture line; the magnetic-attraction mechanical double locking cooperation self-adaptive multi-claw probe realizes accurate capture under blind vision; the asymmetric cross-section wire is adopted for the stent body to improve the circumferential flexibility while providing sufficient radial support; and the flexible connecting anchor leaf can be self-adaptive to the asymmetric bladder neck dissection, can disperse stress and can avoid tissue stimulation and damage.

This invention provides a bobbin thread quantity detection device and method, and a sewing machine. The bobbin thread quantity detection device includes two magnetic components, a guide wire, and a detection system. The two magnetic components are respectively mounted on the bobbin case and are arranged opposite to each other along the circumferential direction of the bobbin case. The guide wire is mounted on the bobbin, and the bobbin has two contact portions. The two ends of the guide wire are respectively positioned corresponding to the two contact portions. At least a portion of the guide wire is mounted on the bobbin's rotating shaft, and a bobbin thread is wound on the rotating shaft to provide pressure for the two ends of the guide wire to move towards the two contact portions. The detection system is connected to the guide wire to detect the induced current on the guide wire. During bobbin rotation, the presence or absence of an induced current on the guide wire is used to determine whether there is sufficient bobbin thread. This invention solves the problem of low accuracy in detecting the bobbin thread quantity in existing technologies.

An interventional system is used to treat a lesion in a target anatomy. The interventional system includes a balloon catheter and a guidewire. The balloon catheter includes a balloon coupled to a catheter shaft. The catheter shaft includes a guidewire lumen having a lumen diameter. The guidewire includes a coil tip coupled to a guidewire shaft at a proximal joint. A coil diameter of the coil tip at the proximal joint is larger than the lumen diameter of the catheter shaft. The interventional system can be used to access and treat the lesion in the target anatomy. Other embodiments are also described and claimed.

The application discloses a kind of consumable conveying devices, comprising: guide wire conveying unit, guide wire is contained in guide wire coil and passes between the pair of guide wire guide wheels, with the rotation of guide wire guide wheel, guide wire is driven forward or backward to retreat;And catheter / stent conveying unit, catheter / stent is contained in catheter / stent coil and passes between the pair of catheter / stent guide wheels, with the rotation of catheter / stent guide wheel, catheter / stent is driven forward or backward to retreat;Wherein the proximal end of guide wire coil is provided with guide wire wetting section, at guide wire wetting section, the upper end side wall of guide wire coil is provided with drop opening, heparin or physiological saline is dropped through drop opening, to wet guide wire in guide wire coil.The application conveys guide wire, catheter / stent and other medical instruments by conveying device, improves the efficiency of guide wire, catheter or stent into human body, reduces the pollution in the preoperative preparation process of guide wire, catheter or stent, and then simplifies the operation of doctor.

The utility model discloses a guide wire fixing device relates to the technical field of intervention operation, including fixed bottom plate, fixed bottom plate is used for fixing the establishment on operating table or operating gown, and the top surface of fixed bottom plate is fixed with a plurality of guide wire clamps in parallel, and each guide wire clamp is provided with at least one guide wire clamp groove, and the guide wire clamp groove is used for corresponding with the guide wire one by one, and the guide wire clamp groove is used for clamping the guide wire, the utility model discloses a guide wire fixing device can avoid two or more guide wires to be wound each other, and can save manpower.

One embodiment of the present disclosure is directed to a selectively connectable medical device. The medical device may include a first flexible wire having an orifice on a distal end thereof and a flexible sleeve surrounding the first flexible wire. The flexible sleeve may be movable along the first flexible wire to a first orientation exposing the orifice, and a second orientation extending over the orifice. The device may further include a second flexible wire having a graspable region on an end thereof. The flexible sleeve may be configured, when the graspable region is threaded through the orifice, to be moved to the second orientation causing the graspable region to bend about an edge of the orifice, and to simultaneously cover the orifice and at least a portion of the graspable region, thereby locking the second wire to the first wire.

This invention discloses a motor coil winding machine, including a base, an inlet device, a conveying assembly, a cable guide assembly, a damping assembly, and a coil winding unit, with each assembly arranged sequentially along the cable conveying direction. The cable guide assembly includes a guide drum, a shaft, and a drive component. Multiple guide blocks are axially arranged inside the guide drum, and top beads are embedded in the wire passage holes of the guide blocks. An adjustable pre-tensioning structure is formed by a wire column and a spring, allowing the top beads to roll and press against the cable surface during the rotation of the guide drum, achieving dynamic straightening of the cable's bending points. The straightened cable enters the damping assembly, which consists of a pressure roller, a bearing roller, and a damper, where a stable tension is applied to the cable under the guidance of an annular groove. This invention, through the synergistic effect of the rotational straightening structure and the constant tension control structure, can stably straighten the cable before winding and maintain a constant tension, preventing cable springback or slack, and improving coil winding quality and production stability.

The invention discloses a coronary intervention guide wire fixing patch and a using method thereof, and relates to the technical field of medical instruments.The coronary intervention guide wire fixing patch comprises a patch body, a bonding layer is arranged on the bottom face of the patch body, at least two clamping grooves used for clamping the tail end of a guide wire are formed in the top face of the patch body, and a plurality of protruding blocks are integrally formed on the top face of the patch body; each clamping groove is of a penetrating type groove structure formed in the top of the corresponding protruding block, the width of an opening of each clamping groove is smaller than the outer diameter of a guide wire, and the number of the protruding blocks is generally four and the protruding blocks are arranged at intervals in the length direction of the patch body. The patch body and the protruding blocks are made of medical plastic in an integrated mode, and the adhesive layer is further covered with a stripping protection layer. The device is simple in structure, small in size and capable of achieving rapid, single-hand and reliable fixing and releasing of the tail end of the guide wire on the premise that extra table top space is not occupied, so that the operation process is effectively simplified, and winding and disengaging of the guide wire are prevented.

The utility model belongs to the field of chemical fiber production equipment especially, it is a kind of high -efficient six roll godet optimization device, it includes base, godet roller and limiting mechanism, six godet rollers are rotatably installed on the base, the limiting mechanism that carries out the location of silk thread is installed on the base, the limiting mechanism is connected with one of six the godet roller the godet roller, the limiting mechanism includes threaded rod, nut, limit board, ring plate, worm wheel, worm and protective plate, threaded rod is rotatably connected on the base, a plurality of nuts are threadedly connected on the threaded rod, limit board is rotatably set on a plurality of the nut. The utility model can not only realize the effect of avoiding the stacking between silk threads by the cooperation of each component, but also can more have the effect of adjusting the spacing between a plurality of the limit boards according to user's demand, and also can realize the effect of moving and adjusting a plurality of the limit boards synchronously.

A catheter system may include a catheter adapter and a catheter extending distally from a distal end of the catheter adapter. The catheter system may include a needle hub and an introducer needle having a proximal end fixed within the needle hub. The catheter system may include a guidewire having a proximal end, a distal end, and a coiled spring portion. The guidewire may be disposed within the introducer needle, and the coiled spring portion may be proximal to the distal end of the catheter. The catheter system may include a guidewire hub proximal to the needle hub. The coiled spring portion may be configured to compress in response to the distal end of the guidewire contacting a blood vessel and decompress in response to entry of the guidewire into the blood vessel.

The application provides a construction system and device of a non-human animal model of tension pneumothorax, and the system comprises: a fixing unit for fixing the non-human animal; a first processing unit for puncturing a puncture needle to the parietal pleura, making a guide wire pass through the needle cavity of the puncture needle to enter the pleural cavity, and withdrawing the puncture needle; a second processing unit for inserting a catheter along the guide wire to make the catheter enter the pleural cavity, pulling out the guide wire, and fixing the catheter; a third processing unit for unidirectional air injection into the pleural cavity through the catheter; and a fourth processing unit for monitoring the range of pneumothorax, determining that the non-human animal model of tension pneumothorax is obtained when the lung sliding of the injection side chest is greater than or equal to 4 / 6 area and lung points are observed, stopping air injection, and obtaining the non-human animal model of tension pneumothorax. The construction success rate of the application is 100%, the construction process is rapid, repeatable and objective in determination, and the application can provide a rapid and repeatable platform for diagnostic research, decompression technology evaluation and training.

An adjustable structure, comprising: a variable catheter (101) and an adjustment tube (103), wherein the variable catheter (101) is provided with a protrudable portion (102), which comprises an outer protruding side (1023) and an inner protruding side (1024), the height by which the outer protruding side (1023) can protrude being greater than the height by which the inner protruding side (1024) can protrude. A guidewire-assisted transvalvular device (100) comprising an adjustable structure. The lateral position of the distal end of the variable catheter (101) is controlled by means of adjusting the protruding height, so that the guidewire-assisted transvalvular device (100) can be stably fixed at the aortic valve orifice, making it convenient for a guidewire located inside the adjustment tube (103) to smoothly cross the aortic valve orifice so as to prepare for a subsequent TAVR procedure.

This application provides a stent placement device for cardiac surgery, comprising a cannula with an inlet end and an outlet end; the cannula is divided into 2-3 cannula branches at the inlet end; the cannula accommodates 2-3 stent delivery catheters; one stent delivery catheter is inserted from each cannula branch; all stent delivery catheters exit from the cannula outlet end; each stent delivery catheter has a guidewire lumen and a stent balloon pressure chamber; a guidewire is disposed in the guidewire lumen; a stent implanter is disposed at the tip of the stent delivery catheter, and an ultrasound positioning ball is sequentially disposed at the tip of the stent delivery catheter. This application utilizes a structure consisting of a flexible cannula and multiple stent delivery catheters to conveniently and simultaneously provide precise stent implantation for multiple blood vessels; by incorporating an ultrasound positioning ball with a corner reflector to enhance ultrasound reflection, the implantation and detailed operation of the device can be more easily completed under ultrasound monitoring.

The application relates to the technical field of medical devices, and provides a developing ring crimping device, which comprises a body, a core mold rotatably arranged on the body, a first accommodating hole for passing a guide wire or a catheter being arranged on the core mold, and a plurality of electromagnetic crimping pieces arranged along the circumference of the first accommodating hole, and a permanent magnet being arranged on the body and matched with the electromagnetic crimping pieces; after the electromagnetic crimping pieces are electrified, the permanent magnet and the electromagnetic crimping pieces repel each other, so as to drive the electromagnetic crimping pieces to move towards the direction of being close to the central axis of the first accommodating hole. The developing ring crimping device provided by the application is controllable in crimping force compared with the use of a crimping clamp, can make the developing ring be tightly crimped without damaging the pipe body, and can uniformly crimp the whole circumference of the developing ring along with the rotation of the core mold, so that non-circular deformation caused by non-uniform circumferential force is avoided, and the performance of the guide wire / catheter is guaranteed.

A method of performing a neurovascular procedure includes the steps of providing an access assembly comprising a guidewire, access catheter and guide catheter; coupling the access assembly to a robotic drive system; and driving the access assembly to achieve supra-aortic vessel access. The guide wire and the access catheter are decoupled from the access assembly. A procedure assembly includes at least a guidewire and a procedure catheter. The procedure assembly is coupled to the robotic drive system; and used to perform a neurovascular procedure.

This utility model discloses a wire guide hook bracket, relating to the field of wire drawing machine technology. During high-speed movement, the magnet in the wire guide hook bracket may detach from the slot, leading to deviations in magnetic force counting data. This utility model includes a bracket body, a fixing part, and a magnet component. The bracket body has a placement groove on its surface, and the fixing part is located inside the bracket body, having a sliding block disposed on the inner side of the bracket body. The bracket body has a square slot. This utility model uses the elastic force of a spring to push a cover plate, causing the fixing block to insert into the fixing slot of the magnet component, thus reinforcing the magnet component and reducing the possibility of it detaching from the bracket body during movement. Furthermore, the fixing of the magnet component can be quickly released by sliding the sliding block, facilitating disassembly and replacement by operators.

The utility model provides a wire feeder, include: second straightening wheel subassembly, set up in first straightening wheel subassembly lower extreme, wire feeding assembly, install in second straightening wheel subassembly downside right end, real -time wire feeding speed monitoring subassembly, set up in second straightening wheel subassembly lower extreme, wire guide nozzle subassembly, install in real -time wire feeding speed monitoring subassembly lower extreme, wire feeding power component, set up in second straightening wheel subassembly left end, wire feeding power component is connected with wire feeding assembly, wire feeding assembly includes two wire guide wheels, extruding piece and two first deep groove ball bearings, the movable part of wire feeding power component passes through second straightening wheel subassembly and is connected with two wire guide wheels, extruding piece sets up in second straightening wheel subassembly front end, and two first deep groove ball bearings are symmetrically connected on extruding piece and rotate, this design realizes the mechanical type one -way wire feeding operation to wire material, and reduces the labor intensity, effectively reduces the deviation between the wire material that sends out and laser focal point appears etc. Probability, effectively guarantee wire feeding effect and work quality.

The stent implanting device and the stent implanting device provided by the embodiment of the application relate to the field of stent implanting devices. The embodiment aims to improve the problem that the tissue in the human body is not easy to fix when the existing stent implanting device punctures. The stent implanting device comprises a containing part, a shuttle part, a puncture head and a guide wire lumen. The shuttle part is accommodated in the containing part, the puncture head is connected with the distal end of the shuttle part, the guide wire lumen extends along the direction from the proximal end of the containing part to the distal end of the containing part, and the distal end of the containing part is provided with an outside opening for the traction wire to pass out of the guide wire lumen. The stent implanting device comprises a traction wire and a stent implanting device. The distal end of the traction wire is used for anchoring the target tissue and guiding the stent implanting device to puncture into the target tissue. In the puncture process of the stent implanting device, the puncture head is arranged away from the traction wire due to the misalignment of the outside opening and the puncture head, and the puncture of the puncture head does not interfere with the position of the traction wire, so that the traction wire can always fix the target tissue in the puncture process of the puncture head.

The utility model discloses a positioning accurate servo electric cylinder relates to electric cylinder technical field, and the utility model discloses a shell seat is provided with the shell cover one end of shell seat, the inside rotation of shell seat is equipped with the threaded rod, the outside threaded cover of threaded rod is equipped with the push rod, and the one end of push rod is slid through shell cover, and the inside fixed mounting of shell cover is equipped with motor, and the drive end fixed connection of motor is equipped with main gear, and the one end fixed cover of threaded rod is equipped with the secondary gear, and the secondary gear is engaged with main gear and is connected, and the outside fixed connection of push rod is equipped with the guide block, through the cooperation of motor, main gear, secondary gear, threaded rod, push rod, and the guide block is in the sliding help push rod guide wire positioning on the guide plate, and utilize the sliding of slider on the sensor and the detection of guide block abutment, cooperate the effect of spring to real -time monitoring guide block and push rod's moving strength judges telescopic data to be transmitted to motor and carries out positioning control, real -time contact, and data is more accurate, and the control reliability is improved.

The utility model provides a kind of for calibration tool of guide wire delivery mechanism force sensor, including calibration module and inspection module;Force gage is installed on calibration module, linear module is installed on inspection module, first force sensor is slidably installed on linear module, second force sensor is installed in guide wire delivery mechanism, first force sensor is coaxially connected with force gage or second force sensor by guide wire;First force sensor is driven to slide by linear module, the reading of first force sensor is calibrated using the reading of force gage, or the reading of second force sensor is calibrated using the reading of first force sensor;The utility model first calibrates first force sensor on inspection module using force gage on calibration module, then calibrates second force sensor using calibrated first force sensor, to greatly improve the calibration accuracy of second force sensor in guide wire delivery mechanism.

The present application relates to the technical field of medical devices, in particular to a laser guide wire system, comprising a laser guide wire and a laser emitter, the laser guide wire having an elongated main body, an outer diameter of the laser guide wire being 0.20-0.98 mm, and an energy transmission channel being arranged in the main body and extending in an axial direction; the laser emitter is optically coupled to the proximal end of the laser guide wire, and is configured to provide therapeutic laser to the energy transmission channel. The energy transmission channel transmits the laser from the proximal end to the distal end of the laser guide wire and releases the laser, so as to ablate or cut biological tissues, thereby enabling the laser guide wire to independently pass through and treat diseased tissues in blood vessels or cavities without relying on a pilot guide wire. The present application can solve the technical problems that it is difficult for a guide wire to independently pass through hard lesions and that laser treatment equipment cannot be miniaturized and integrated.

A chronic and / or acute system and methods of minimally invasive ablation with wire structure devices dispensed through a needle without open cut downs or laparoscopy and using energy forms including radiofrequency, microwave and direct current.

A delivery device 10 for delivering a guidewire 22 into a catheter assembly includes a syringe 12, which includes a barrel 14 and a plunger 16 movable within the barrel. The plunger may include a handle 19 and a stopper 18 coupled to a distal end of the handle. The stopper may include a channel. In response to depression of the plunger, the guidewire is moved through the channel and a first end of the guidewire may be advanced in the distal direction. A second end of the guidewire may be fixed.

The utility model discloses a kind of thrombus removing devices, including push guide wire and braided body, braided body is the three-dimensional mesh structure woven by multiple metal wires, braided body is along push guide wire axial extension variable diameter, one end of braided body is slidably arranged in the distal end proximal of push guide wire, the other end of braided body is fixed in the distal end distal of push guide wire, two ends of braided body move relatively, make braided body convert between first configuration and second configuration, when the first configuration, the unfolding diameter of braided body is less than the unfolding diameter of braided body when the second configuration.The utility model can avoid the problem that stent and microcatheter are prone to displacement when releasing, thrombus will be captured by net and will not occur thrombus escape, pulling thrombus process will not cause blood vessel damage, braided body can be lengthened in small and tortuous blood vessels to adapt to various blood vessel shapes.

This utility model discloses a cableway suspended platform installation structure, relating to the field of building construction technology. It includes a suspended platform guide mechanism and a suspended platform suspension mechanism installed on the top of a building. The guide mechanism comprises a guide mechanism frame and a guide wire rope. The upper end of the guide wire rope is connected to the guide mechanism frame, and the lower end is connected to the bottom of the building. The guide wire rope is inclined relative to the ground. A suspended platform is installed on the guide wire rope, and a pulley mechanism is installed on the suspended platform. The guide wire rope is connected to the pulley mechanism. The suspended platform suspension mechanism comprises a suspension mechanism frame and a suspension wire rope. The upper end of the suspension wire rope is connected to the suspension mechanism frame, and the lower end is connected to the suspended platform. The suspension wire rope is also connected to the movable end of a hoist. This cableway suspended platform installation structure can be installed on inclined facades and can be used for curtain wall construction, etc. It is convenient to install and dismantle, safe to operate, and saves time, solving a series of problems such as difficult scaffolding erection, high costs of scaffolding measures, and impact on construction schedules.

This application belongs to the field of spinning machine technology and discloses a yarn guiding mechanism for a spinning machine for modified nylon chips. It includes a first support plate, a second support plate disposed on one side of the first support plate, and through slots on one side of both the first and second support plates. A yarn guiding assembly and a winding shaft are disposed between the first and second support plates. A guide assembly is disposed on the outer surface of the winding shaft, and a nylon yarn body is disposed through the inside of the yarn guiding assembly. The yarn guiding assembly includes a top plate and a bottom plate fixedly connected between the first and second support plates. This application can push a U-shaped plate to move via a telescopic rod, thereby causing the second and first rings to move synchronously along the outer surface of the winding shaft to maintain a constant width of the winding cavity and change the position of the winding cavity on the outer surface of the winding shaft, so that the nylon yarn body can be uniformly wound at different positions on the outer surface of the winding shaft.

The utility model provides a kind of nipple cutting balloon dilatation catheter, comprising: the balloon part of being arranged in the front part of catheter, the tube wall of the balloon part is wrapped with balloon, the outer surface of the balloon is equipped with multiple knife filaments, and the knife filament is used to be connected with high frequency generator.The utility model can be sent into or pulled out duodenal nipple in the guide of guide wire, and dilate duodenal nipple, when nipple sphincter stenosis appears, handle joint connects high frequency generator, and the knife filament on the surface of balloon can carry out electroincision effect to the tissue of stenosis, increase stenosis dilatation efficiency and effect.