135 results about "Side branch" patented technology

A computer is caused to perform processing of: acquiring a plurality of medical images generated based on signals detected by a catheter inserted into a lumen organ while the catheter is moving a sensor along a longitudinal direction of the lumen organ, the lumen organ including a main trunk, a side branch branched from the main trunk, and a bifurcated portion of the main trunk and the side branch; and recognizing a main trunk cross-section, a side branch cross-section, and a bifurcated portion cross-section by inputting the acquired medical images into a learning model configured to recognize the main trunk cross-section, the side branch cross-section, and the bifurcated portion cross-section.

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.

Endovascular prostheses used to treat diseased blood vessels, such as arteries, are disclosed. In some embodiments, the endovascular prosthesis is configured to be implanted within the diseased blood vessels adjacent a diseased section. The endovascular prosthesis may include a selectively openable internal duct configured to sealingly receive an expandable endovascular prosthesis that extends into a side branch vessel of the diseased blood vessel.

[Problem] To provide a heating coil capable of efficiently quenching a workpiece in a short time, and controlling the depth of a cured layer produced by quenching the workpiece for each height position in accordance with the shape of the workpiece. [Solution] This heating coil (1) comprises: ground parts (2a, 2b) for attaching to an electrode; a pair of support parts (3a, 3b) which are respectively orthogonal to the ground parts (2a, 2b) and are arranged so as to face each other in parallel with each other, and in which distal-end portions are vertically branched; a circumferential upper heating part (4α) which is provided so as to connect the upper-side distal ends of the support parts (3a, 3b); and a circumferential lower heating part (4β) which is provided so as to connect the lower-side distal ends of the support parts (3a, 3b) to each other. A heat release part (R) is formed so as to protrude outward in an upper-side branch portion of the left support part (3a), and a high-frequency current from the ground parts (2a, 2b) is supplied to the upper heating part (4α) via the heat release part (R). [Selected Drawing] Figure 1

The present application discloses a stent graft and a method for navigating the stent graft to a branch vessel, the stent graft comprising a main body and at least one lateral side branch connected to the main body, a stent graft system and a method for implanting the stent graft, including interconnecting the stent grafts.

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.

The present invention is applicable to the technical field of bone defect repair, and provides a preparation method and application of a collateral-modified Gelma hydrogel. The present invention performs collateral modification on the Gelma hydrogel by Fibrinogen, successfully improving the mechanical properties and cell adhesion of the hydrogel scaffold. At the same time, the loading of NELL‑1 protein significantly improves the scaffold's ability to repair bone defects. The Fibrinogen‑Gelma / NELL‑1 hydrogel scaffold constructed by the present invention has shown ideal mechanical properties in relevant characterizations, and has been shown to play a key role in the repair of bone tissue defects in in vitro and in vivo experiments, and has greatly promoted the expression of osteogenesis-related genes. Therefore, the present invention is expected to be applied to clinical treatments related to bone defect repair, such as maxillary sinus bone augmentation and guided bone regeneration (GBR), in the future.

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 provides a kind of vascular stent, the device includes: first support, first support includes first support unit and first pipe body, first support unit is set on first pipe body, along the length direction of first pipe body extends, and stop and resist the outside wall of first pipe body, first pipe body is distributed with multiple first hollow holes of interval distribution;Second support, second support includes second support unit and second pipe body, second support unit is set on second pipe body, along the length direction of second pipe body extends, and stop and resist the outside wall of second pipe body, second pipe body is distributed with multiple second hollow holes of interval distribution;The end of second support is connected with first support, the lumen of first pipe body is communicated with the lumen of second pipe body.In the utility model, sufficient radial support force is provided while excellent flexibility is guaranteed, the mechanical stress stimulation to blood vessel intima is small, and the long-term patency of main branch and side branch is guaranteed.

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 utility model discloses a disposable extracorporeal circulation pipeline converter, and relates to the technical field of extracorporeal circulation converters. The side branch pipe is fixedly installed in the center of the top end of the vein pot. The side branch pipe at the top end of the vein pot is mutually connected with an extracorporeal circulation pipeline of a patient and is mutually connected with a hemodialysis machine vein detector through a dialysis machine guide pipe, so that effective detection is carried out in the blood return process, a filter screen in the vein pot can effectively filter blood clots in blood, and the blood clots in the blood can be effectively filtered out. In addition, part of the connecting pipe at the bottom end of the vein pot is placed at the detection part of the hemodialysis machine for air and blood leakage detection, so that the safety and effectiveness of the whole blood return process are ensured, the blood clots are effectively prevented from entering a blood circulation system, and the blood clots are prevented from entering the blood circulation system. And the risk of serious complications such as vascular obstruction and embolism caused by blood clots is reduced.

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.

1. The name of the design product: disposable multi-head infusion extension tube. 2. The use of the design product: used for connecting infusion bag output control liquid, can connect 2, 3, 4 different number of extension tubes on the main pipeline side branch, suitable for different models of different needs when continuously infusing two bags, three bags, four bags. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. The submitted views are sufficient to embody the design, and the left view, right view, top view, and bottom view are omitted.

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 invention belongs to the technical field of noise control of pipelines with high-speed airflow, and particularly discloses a bypass pipe-perforated screen composite sound absorption structure for flow pipe noise reduction, the structure comprises a main pipeline, a bypass pipe silencer and a perforated screen, the bypass pipe silencer is arranged on the side wall surface of the main pipeline, and the perforated screen is arranged on the side wall surface of the main pipeline. The side branch pipe silencers are fixedly connected with the main pipeline through fixing bolts; and the perforated screen is arranged at the interface of the side branch pipe silencer and the main pipeline. By the adoption of the bypass branch pipe-perforated screen composite sound absorption structure for noise reduction of the flow pipe, the flow separation phenomenon at an inlet and an outlet of the bypass branch pipe can be restrained, the flow field quality of a main pipeline is improved, and the noise reduction effect of the bypass branch pipe in the flow pipe cannot be greatly influenced; in addition, the structure is simple, the perforated screen does not need to be specially designed, the perforated screen is not limited by the shapes of the main pipeline and the branch pipes, and the perforated screen has good application value in the field of flow pipe noise reduction.

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 discloses a pruning tool for lateral branches of watermelons, which relates to the technical field of agricultural planting and comprises a hollow rod body. The sorting plate is arranged at the bottom end of the rod body, an inner slope is arranged on the top of the sorting plate close to the inner side, a through groove is formed in one side of the inner slope to form a side branch limiting area, and an outer slope is arranged on the top of the sorting plate close to the outer side; the watermelon lateral branch sorting device has the advantages that lateral branches of watermelons can enter conveniently through the lateral branch sliding ways and the limiting areas which are formed by matching the outer inclined faces, the inner inclined faces and the through grooves which are arranged on the sorting plates, and the sorting effect is achieved; in addition, when the lower cutter hooks the to-be-sheared lateral branches to move upwards, the lateral branches can be far away from the outer inclined face along the side walls of the through grooves and are separated from the other lateral branches by a distance. Meanwhile, the extrusion face of the bending portion of the lower cutter moves upwards to push other lateral branches on the sliding way, interference is reduced, physical isolation is achieved, the problem that in traditional operation, mistaken pruning is likely to happen is solved, pruning accuracy and efficiency are improved, and plant damage is reduced.

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.