95 results about "Side branch" patented technology

The utility model discloses a thrombus aspiration plugging sheath system based on a special-shaped cavity, which comprises a vacuum device, an aspiration plugging sheath, an aspiration plugging sheath and an aspiration plugging sheath, and is characterized in that the vacuum device comprises a negative pressure needle cylinder and a piston buckle arranged on the side wall of the negative pressure needle cylinder; the balloon sheath tube comprises a tube body, a balloon used for blocking is arranged at the far end of the tube body, a connector connected with the vacuum device is arranged on the side of the near end of the tube body in a supporting mode, and a plurality of special-shaped cavities are formed in the tube body; the thrombus dragging instrument is used for blocking blood flow to reduce blood loss during thrombus suction and intercepting the thrombus to prevent the thrombus from escaping when the thrombus is dragged; the vacuum device is arranged on the side branch of the near end of the balloon sheath tube, and the thrombus dragging instrument is arranged in the balloon sheath tube. According to the embodiment of the utility model, the balloon filling opening and the thrombus suction opening are formed in the catheter body, a multi-cavity structure is adopted, the balloon sheathing canal blocks blood flow, and the thrombus dragging instrument is matched with a vacuum device to suck, drag and take out thrombus.

A delivery system for an implantable device includes an elongate member and a main body coupled to the elongate member. The main body has a main body wall defining a main body lumen and a side branch portal through the main body wall. A guide member extends along at least a portion of the elongate member, into the main body lumen, and through the side branch portal. A guide member retainer assembly includes a retainer coupled to the guide member and defining a retainer eyelet. A release wire extends through a portion of the main body wall and the retainer eyelet to engage the retainer eyelet, restricting the guide member from being retracted along the elongate member by the engagement between the release wire and the retainer eyelet.

A vessel harvesting system removes a target vessel from a patient for use as a bypass. An elongated harvesting instrument inserts into a body along a path of a target vessel which includes at least one side branch. The harvesting instrument includes a cutter for applying thermal energy to sever and cauterize the side branch. An endoscopic camera captures visible-light images from a distal tip of the instrument within a dissected tunnel around the target vessel. A thermal camera captures thermograms coinciding with the visible-light images to characterize a temperature present at respective surfaces in the tunnel. An image processor (e.g., an electronic controller) renders a video stream including the visible-light images and an overlay depicting the temperatures present on at least some of the respective surfaces when applying the thermal energy. A display presenting the video stream and overlay to a user can be an augmented-reality display.

A device for removing stones and foreign bodies from a human cavity including a straight sheath with one or more side branches; said straight sheath including a proximal tube and distal tube with respect to the operator who is holding the device; one or more side branches arise from the proximal tube and said branch or branches share a common lumen with the proximal and distal tubes; at the least, one of the side branches contains a pressure vent in the form of an opening that extends through the wall of the side branch and is sealed to form an airtight channel that extends toward a sealing element assembly. One or more openings at the end of this airtight channel serve as a transposed pressure regulating mechanism and are located and accessible on or near the surface of said sealing element assembly; an operator can regulate the aspiration pressure by covering or uncovering the vent or a portion of the vent.

An integrated peripheral intravenous (IV) catheter configured for blood draw both at the time of catheter placement and during catheter indwell. The peripheral IV catheter includes a catheter adapter having a catheter configured to be inserted into a patient's vasculature and a side inlet defining a fluid pathway into and out of the catheter. The peripheral IV catheter also includes a side port member having a main branch, the main branch including a distal end configured to couple the side port member to the side inlet of the catheter adapter and a connector portion accessible via a proximal end of the main branch. Additionally, the peripheral IV catheter includes a blood collection adapter removably and directly coupled to the connector portion of the side port member at the proximal end of the main branch. Furthermore, side pore member of the peripheral IV catheter may include a side branch.

The application discloses a multi-connected direct expansion indoor unit system and a control method thereof, which comprises an outdoor unit, a main indoor unit and multiple reference indoor units; the main indoor unit is connected with the outdoor unit through a main liquid-side branch pipe, a main gas-side branch pipe, a main liquid-side connecting pipe and a main gas-side connecting pipe; the secondary indoor unit is connected with the outdoor unit through a secondary liquid-side branch pipe, a secondary gas-side branch pipe, a secondary liquid-side connecting pipe and a secondary gas-side connecting pipe; a first throttling electronic expansion valve is arranged on the main liquid-side branch pipe, and a second throttling electronic expansion valve is arranged on the secondary liquid-side branch pipe; the main indoor unit for cooling or heating a comfortable space and the reference indoor unit for cooling or heating a process space are combined into one refrigeration system, and the refrigeration or demand of each space is controlled according to the production requirement.

The utility model belongs to the technical field of evaporators, in particular to a three-way special-shaped pipe fitting for an evaporator, which comprises a main pipe body, the main pipe body sequentially comprises a head pipe part, a straight pipe part and a tail pipe part from head to tail, the head end of the head pipe part is a port and is a linear pipe section, the straight pipe part is a linear pipe section, and the tail end of the tail pipe part is a port and is a bent pipe section. The head pipe part is connected with the straight pipe part through a first bent transition section, the straight pipe part is connected with the tail end part through a second bent transition section, the head pipe part, the straight pipe part and the tail pipe part are of an integrated structure formed by continuously bending pipes, and the side wall of the straight pipe part locally deforms outwards through hydraulic pressure to form a protruding part. And a bypass port communicated with the inner cavity of the straight pipe part is formed in the end part of the convex part through cutting. The three-way special-shaped pipe fitting is simple in structure and low in cost, the special-shaped design is adopted to meet the distribution requirement of a specific fluid path, and it is ensured that the three-way special-shaped pipe fitting has good overall sealing performance and supporting strength through a continuous bending integrated structure and a hydraulic forming mode.

The invention relates to the field of pressure detection, in particular to a tap water pipe pressure detection device. The technical problem to be solved is that a large amount of dirt is adhered to the surfaces of a dial plate and a glass cover of the bourdon tube water pressure detection meter, reading is affected, rotation of a pointer is further affected, and the water pressure detection value is inaccurate. According to the technical scheme, the device comprises a water conveying pipeline and a water inlet pipe installed on the water conveying pipeline; dirt on the rear surface of the glass cover is cleaned through rotation of the pointer, in order to further improve the cleaning effect, water is fed into the space between the dial plate and the glass cover sealing space through the flow dividing pipe on the right side, the flow dividing pipe is located on the upper side of the sealing space, washing operation is effectively achieved, the cleaning difficulty is reduced, and the cleaning effect is improved.

The utility model discloses a fruit tree planting branching device which comprises a bottom panel, a telescopic supporting rod structure is fixed to the top of the bottom panel, two right sleeve blocks are fixed to the right side of the upper end of the telescopic supporting rod structure in the longitudinal direction, right stretching components are arranged on the right sides of the two right sleeve blocks, and each right stretching component comprises a right frame block. The right frame block and the right sleeve block are fixedly connected, a right square plate is arranged on the side face of the right frame block, an insertion plate is fixed to the left side of the right square plate, one end of the insertion plate is connected to the inner side of the right frame block in an inserted mode, right side branch components are fixed to the right ends of the two right square plates, and each right side branch component comprises a lower branch half sleeve frame. An upper branch half sleeve frame is arranged on the upper side of the lower branch half sleeve frame, two compression springs are arranged between the two ends of the upper side of the lower branch half sleeve frame and the two ends of the lower side of the upper branch half sleeve frame, and two left sleeve blocks are fixed to the left side of the upper end of the telescopic supporting rod structure in the longitudinal direction, so that the use performance of the branching device is improved.

The application discloses a V-shaped energy dissipator for a ship lock dispersion water delivery system and a layout structure thereof. The V-shaped energy dissipator comprises a V-shaped sill body, the V-shaped sill body comprises two vertical sills, the two vertical sills are vertically arranged and one side of the two vertical sills is correspondingly connected to form a V-shaped structure, and a plurality of first water-permeable holes penetrating through end surfaces of the vertical sills are arranged on the vertical sills. The layout structure comprises a layout structure, a lock chamber surrounded by two lock walls, a plurality of side branch holes arranged on the lock walls, the side branch holes on the two lock walls being arranged in a staggered mode, and a plurality of V-shaped energy dissipators described in the foregoing, the V-shaped sill bodies being arranged in a one-to-one correspondence with the side branch holes, the openings of the V-shaped sill bodies facing away from the side branch holes and the V-shaped sill bodies being opposite to the side branch holes, and the height of the V-shaped sill body being 1-1.1 times the height of the side branch hole. The application can effectively disperse high-intensity jets in the horizontal dimension, weaken the local concentration of turbulent flow, weaken vertical vortices, and thus improve the berthing conditions of ships in the lock chamber.

The utility model relates to the technical field of dragon fruit planting, in particular to a branch pruning device for dragon fruit planting. Comprising a fixed rod, a movable rod, a blade, a blade groove, a fixed plate and two limiting assemblies, the movable rod is rotationally connected with the fixed rod, the blade is fixedly connected with the movable rod, the blade groove is fixedly connected with the fixed rod, the fixed plate is fixedly connected with the fixed rod, and each limiting assembly comprises a connecting rod, a telescopic rod, an abutting spring and a clamping plate; the telescopic rod is fixedly connected with the connecting rod, the clamping plate is fixedly connected with the telescopic rod and located at the end, away from the connecting rod, of the telescopic rod, and the two ends of the abutting spring are fixedly connected with the clamping plate and the connecting rod respectively and arranged outside the telescopic rod in a sleeving mode. Side branches are prevented from falling to the ground, working steps are saved, and working efficiency is improved.

The invention relates to the technical field of interventional medical instruments, and discloses a handheld ultrasonic system for treating vascular occlusion and a using method.The handheld ultrasonic system for treating vascular occlusion comprises a guide wire used for moving to an internal occlusion part of a blood vessel along the blood vessel, and further comprises a positioning guide wire and a catheter, the positioning guide wire is used for entering the main branch from the side branch to perform reverse puncture on the artery plaque, a positioning guide wire cavity is formed in the catheter, the positioning guide wire can move along the positioning guide wire cavity, a positioning guide wire outlet communicated with the positioning guide wire cavity is formed in the catheter, a balloon is arranged at the far end of the catheter, and the balloon can synchronously move with the catheter in a contraction state; the balloon is additionally arranged at the front end of the catheter, the balloon can be matched with the blood vessel wall or directly form a channel in the balloon in the expansion state, the channel restrains the guide wire to move along the channel, an inlet of the channel is communicated with the guide wire catheter, an outlet of the channel faces the artery plaque, and reverse puncture of the artery plaque is completed.

The present application relates to the technical field of medical devices, in particular to an ECMO distal perfusion catheter and an implantation method thereof, comprising a sheath pipe, one end of the sheath pipe is provided with a connecting head, a side branch hose is arranged on the connecting head, and a three-way valve is arranged at one end of the side branch hose away from the connecting head; the sheath pipe is in a tubular structure, a side hole area is arranged through the side wall of one end of the sheath pipe away from the connecting head, and the side hole area is used for supplying blood to a distal blood vessel of a patient. The technical scheme provided by the present application can effectively expand the blood supply coverage, improve the blood supply stability, and avoid local blood vessel ischemia by arranging a side hole area at the head of the sheath pipe and supplying blood to the distal blood vessel through multiple outlets.

A device for removing stones and foreign bodies from a human cavity including a straight sheath with one or more side branches; said straight sheath including a proximal tube and distal tube with respect to the operator who is holding the device; one or more side branches arise from the proximal tube and said branch or branches share a common lumen with the proximal and distal tubes; at the least, one of the side branches contains a pressure vent in the form of an opening that extends through the wall of the side branch and is sealed to form an airtight channel that extends toward the proximal tube. One or more openings at the end of this airtight channel serve as a transposed pressure regulating mechanism and are located and accessible on or near the surface of said proximal tube; an operator can regulate the aspiration pressure by covering or uncovering the vent or a portion of the vent.

The utility model discloses a medical anti-slip, convenient flushing, pressure measurable single 'J' tube, which comprises a single J tube annular part and a single J tube main body, the right end of the single J tube main body is provided with the single J tube annular part, the left end of the single J tube main body is provided with a single J tube side branch, the lower side of the single J tube side branch is provided with a drainage bag, and the drainage bag is provided with a drainage hole. The single J tube collateral branch is connected with the drainage bag through a collateral branch flushing sampling end, and is used for a patient subjected to ureteral skin stoma pelvis ureteral drainage after radical bladder resection, the postoperative ureteral stent can be better prevented from slipping, the postoperative ureteral stent can be conveniently flushed, necrotic tissues and foreign matters can be flushed out in time, flushing and pressure measurement are facilitated due to sufficient drainage, and the drainage effect is good. Risks of hydronephrosis and exuresis caused by blockage of the ureteral stent after the operation of a patient are reduced, sampling after the operation is convenient, the condition of intrarenal pressure of the patient is known in time, and the problems that the ureteral stent slips easily and is difficult to wash in the perioperative period are solved.

The utility model relates to the technical field of air shield dams, and discloses an air shield dam aeration deicing device which comprises a gate bottom plate, a plurality of restraining belts are fixedly connected to the top of the gate bottom plate, a shield plate is fixedly connected between the tops of the restraining belts, and an icebreaking assembly is installed on the front portion of the shield plate. The ice breaking assembly comprises an air compressor, a temperature rising belt and side branch air pipes, the air compressor is installed outside the gate bottom plate, the output end of the air compressor is connected with an air storage tank through a pipeline, the output end of the air storage tank is fixedly connected with a main air conveying pipe, the temperature rising belt is installed on the back face of the shield plate, a temperature sensor is fixedly connected to the temperature rising belt, and the side branch air pipes are fixedly connected with the main air conveying pipe. The side branch air pipes are installed on the front face of the shield plate in the water flow direction. According to the air shield dam, compressed air can be uniformly sprayed to an ice layer around the air shield dam through cooperative work of the air compressor, the air storage type air tap and the side branch air pipes. The pressure-adjustable nozzle can adjust air injection parameters according to the actual condition of an ice layer, so that the ice layer is rapidly broken and melted under the impact and disturbance of high-pressure air flow.

The utility model belongs to the technical field of water slide, especially a glass water slide, including glass positioning seat, both ends of glass positioning seat are fixed with side branch, and the top of two side branches is also fixed with guardrail, the top of glass positioning seat is provided with horizontal glass, the both ends of horizontal glass are provided with vertical glass, the outside of guardrail is provided with protection assembly, protection assembly includes the mounting panel of being wrapped in the outer surface of guardrail, the outside of mounting panel is provided with buffer layer, the outside of buffer layer is provided with protection layer, the utility model discloses setting up protection assembly outside guardrail, and protection assembly is used as the buffer structure outside guardrail, and the surface of protection assembly is soft structure, and the other parts of arm or body are protected after touching protection assembly in the sliding of glass slide, and the skin epidermis will not be scratched, and it is favorable to improve the security of glass water slide device whole.

The invention discloses a box type topology coaxial cavity filter based on a coupling branch knot dual-mode coaxial resonator. The box type topology coaxial cavity filter comprises a metal cavity, a cover plate, two metal resonance rods and a metal dual-mode resonance coupling branch knot, the metal cavity is in a cuboid geometrical shape, and the cover plate is located at the top of the metal cavity, so that the metal cavity becomes a closed space; the size of the filter cavity, the size of the resonance rod and the size of the coupling branch depends on specific frequency requirements; the metal dual-mode resonant coupling branch knot is composed of a plurality of branch knots which are completely in mirror symmetry left and right, each side branch knot comprises first to fifth branch knots, and the first branch knot is of a block-shaped structure, is a common basic supporting part of the symmetrical branch knots and is directly connected with the metal resonant cavity to form a short-circuit end; the second branch knot is an arc convex surface; the third branch is of a blocky structure; and the fifth branch knot is connected above the fourth branch knot, is of a regular block-shaped structure, is kept in an equal-width vertical direction, and is provided with a gap with the metal resonant cavity to form an open circuit end.

The utility model relates to the technical field of laser cutting equipment, in particular to an adjustable cutting platform of a laser cutting machine, which comprises a base, a platform is fixed above the top end of the outer wall of the base, clamping components for clamping and fixing workpieces are arranged on two sides of the top end of the outer wall of the platform, and each clamping component comprises a bottom supporting plate. The two bottom supporting plates are arranged on the two sides of the top end of the outer wall of the platform in a sliding mode, and side supporting plates are fixed to the top ends of the outer walls of the bottom supporting plates. The cylindrical workpieces can be clamped and fixed by the workpiece clamping plates through the arc-shaped grooves by taking down the arc-shaped splicing blocks, so that to-be-cut workpieces with different shapes and sizes can be clamped and fixed by one group of workpiece clamping plates matched with the movable bottom supporting plate; therefore, the steps of dismounting and mounting the whole clamp device by personnel are reduced.

The utility model discloses a heat dissipation plate and a wind power radiator, the heat dissipation plate comprises a frame body, a plurality of heat dissipation main ribs extending towards a first direction are arranged in the frame body, and the first direction is a direction far away from a heat source; heat dissipation side branch ribs which are inclined and extend towards the first direction are arranged on the two sides of the adjacent heat dissipation main ribs, and the heat dissipation side branch ribs extend to the adjacent heat dissipation main ribs or / and the lower part of the frame body; the radiating plate is provided with a plurality of radiating main ribs and radiating side branch ribs, the radiating main ribs and the radiating side branch ribs are interwoven to form the tree-shaped radiating plate, and radiating efficiency is improved.

A catheter device for transvascular delivery of a medical device to a cardiac valve region of a patient comprises an elongate sheath with a first lumen, a distal end for positioning at a heart valve, a second lumen that extends parallel to or in the sheath, and an expandable embolic protection filter. The filter is arranged to extend from an orifice of the second lumen and, in the expanded, covers ostia of the side branch vessels in the aortic arch.

The utility model relates to a bamboo joint atomizing nozzle type quick-connection tee joint which aims at solving the technical problems that the number of joints is increased, and angle adjustment and installation construction are inconvenient due to the fact that few branch pipelines on one side of the middle of an existing like product are connected with an atomizing nozzle with a ball head through a ball head type universal joint. A middle pipe opening of the quick tee joint is provided with a ball head atomization assembly; the three-way valve is characterized in that a bulb seat at one end of the bulb atomization assembly is connected with a protruding pipe opening in the middle of the three-way valve body through at least one bulb connecting piece, and the bulb connecting piece serves as a universal joint between the bulb atomization assembly and the three-way valve body. A channel in a ball cup of the ball atomization assembly is communicated with a channel in a three-way valve body through a ball connecting piece. A protruding pipe opening in one side of the middle of the three-way valve body is a valve body ball head groove, a quick-connection ball head at one end of the ball head connecting piece is sleeved with the valve body ball head groove of the three-way valve body in an interference sealing mode, and a quick-connection ball head groove at the other end of the ball head connecting piece is sleeved with a ball head portion at one end of a ball head seat of the ball head atomization assembly in an interference sealing mode.

This invention discloses an automatic branch circuit twisting device, comprising front and rear jaws mounted on the same slide rail assembly, at least one of which is slidably connected to the slide rail assembly. The front jaw has a clamping groove for clamping and fixing one end of the twisted wire to the wire body of the twisted wire. The rear jaw has a rotatable rotating plate, with a twisted groove in the center for accommodating the twisted wire and a twisting groove communicating with the twisted groove for accommodating the twisted wire. A circular rotating guide component, coaxial with the rotating plate, protrudes from the side of the rotating plate to drive the twisted wire to wind around the twisted wire. By clamping and fixing the twisted wire to the twisted wire with the front jaw, and by the rotating plate in the rear jaw driving the wire in the twisted groove and the twisting groove to tightly wind together, the wire twisting operation of the branch circuit is quickly realized, requiring little operating space and reducing interference from side branches.

The present application discloses a distributor, comprising an inlet flow passage. The distributor is used for distributing and discharging a refrigerant flowing in from the inlet flow passage, wherein branch flow passages are provided on the distributor, and the branch flow passages are provided with branch inflow portions for the refrigerant to flow in and a plurality of branch outflow portions for the refrigerant to branch out and flow out. The branch flow passages comprise: an upstream-side branch flow passage, a branch inflow portion of the upstream-side branch flow passage being communicated with the inlet flow passage; a first intermediate branch flow passage, a branch inflow portion of the first intermediate branch flow passage being communicated with one of branch outflow portions of the upstream-side branch flow passage; and a second intermediate branch flow passage, a branch inflow portion of the second intermediate branch flow passage being communicated with another branch outflow portion of the upstream-side branch flow passage, wherein the first intermediate branch flow passage and the second intermediate branch flow passage extend in a first direction, and the projections of the first intermediate branch flow passage and the second intermediate branch flow passage on a plane perpendicular to an end surface of the distributor and parallel to the first direction partially overlap.

The present application discloses a stent-graft prosthesis and a method for navigating such stent-graft prosthesis e.g. to a branch vessel. A first stent-graft prosthesis may include a main body and at least one lateral side branch connected to the main body. A further stent-graft prosthesis according to examples has a body having a generally tubular wall structure, the wall structure of the further stent-graft prosthesis including an orifice element (610) for receiving a guiding element (10). Preferably the wall structure has an overlap region (630) for interconnection, e.g. to the first stent-graft prosthesis. The orifice element (610) is then arranged at said overlap region, wherein said overlap region is preferably arranged at a proximal end region of said body. The guiding element (10) preferably is a textile thread or suture thread, optionally with a radiopaque marker, such as a fiducial marker and / or a radiopaque elongate marker extending at least along a portion of a length of said guiding element (10).

The utility model discloses a side branch shearing mechanism, which belongs to the technical field of planting and comprises a movable frame A, sliding chutes A, a sliding frame A, a movable frame B, a mounting frame A, a mounting frame B, a tool bit, a mounting groove and a grip, the movable frame B is rotatably arranged on the side of the movable frame A through a rotating shaft, the sliding chutes A are embedded in the upper parts of the movable frame A and the movable frame B, the sliding frame A is slidably arranged on the inner upper parts of the sliding chutes A, and the tool bit is arranged in the mounting groove. And grips are arranged below the exteriors of the sliding frames A in a sliding manner. The two grips are pushed to drive the movable frame B and the movable frame A to rotate through the rotating shaft, the tool bits on the sides of the installation frame B are driven to be closed, the tool bits make contact with the two sides of a lateral branch, the loosened sliding frame A is pushed to slide repeatedly on the inner side of the sliding groove A, and one tool bit is driven to slide repeatedly on the surface of the lateral branch. And redundant lateral branches are quickly cut open and sheared off, so that a worker can easily shear off the lateral branches conveniently, and the situation that part of the lateral branches with large diameters are strenuous when being sheared off can be avoided.

The invention relates to the technical field of medical instruments, in particular to a heart model and coronary artery interventional operation training device.The heart model comprises a main body and a simulated blood vessel set, the blood vessel set is formed by sequentially connecting a coronary artery tube and first-level to third-level branch vein tubes, and the second-level branch vein tube is provided with a detachable lesion simulation module; the lesion simulation module is provided with simulation plaques such as calcification, a fiber cap or a lipid core and is used for simulating different stenosis lesions. The three-stage branch vein tube is additionally provided with a side branch tube and a multi-stage branch tube, so that the tortuosity and anatomy authenticity of the blood vessel are enhanced. The problems that an existing training device is simplified in branch, single in lesion and lack of key blood vessels and real tactile feedback are solved, the guide wire control ability and the operation proficiency of interventional doctors can be effectively improved, the learning period is shortened, and the clinical operation risk is reduced.

The utility model relates to the field of punching devices, in particular to a punching device for mechanical and electrical installation, which comprises a drilling machine. The device further comprises a sliding seat, a lower supporting plate is arranged at the lower end of the drilling machine, an upper supporting plate is arranged at the upper end of the drilling machine, and one side of the lower supporting plate and one side of the upper supporting plate are jointly and rotationally connected with two first side supporting strips. According to the utility model, the nut and the sliding seat are arranged, so that the nut is unscrewed after the front filler strip is attached to the wall surface, and a rectangle formed by the lower support plate, the upper support plate, the first side support strip, the second side support strip and the front filler strip can be changed into a deformable parallelogram; the drilling machine, the lower supporting plate and the upper supporting plate are parallel to one another, the included angle formed by a drill bit installed on the drilling machine and the wall face can be changed after the parallelogram deforms, and then the drilling angle can be fixed by screwing up a nut. And in the punching process, the non-slip mat and the spring damping shock absorber can absorb part of vibration transmitted to the front filler strip from the wall body.