53 results about "Blood vessel operations" patented technology

The vasoocclusive device for use in interventional therapy and vascular surgery adapted to be inserted into a portion of a vasculature, includes a vasoocclusive coil disposed about an inner reinforcement coil wherein said vasoocclusive coil is helically wound and the inner reinforcement coil forms a reverse helical winding opposite the vasoocclusive coil winding, thereby forming a biplex wound coil. The vasoocclusive device biplex winding provides improved mechanical properties to the device. An inner reinforcement stretch resistant member attached within the biplex windings limits coil stretchability.

A trifurcated stent apparatus for use by a physician includes a main stent for inserting into a trifurcated blood vessel and two side stents. The main stent includes two openings on the side which are the same diameter as the corresponding side stents. The main stent may be configured to receive a first end of a first side stent and a first end of a second side stent, to create a trifurcated stent. Alternatively, the side stents and the main stent may form a single integrated unit. The main stent and side stents can include one-way valves on one or more of the ends. The one or more one-way valves may be opened or closed, depending on whether the physician desires that fluid pass through. While closed, the valve may be configured to allow passage of various cardiovascular instruments, including but not limited to guidewires, catheters, balloons, or any other device used in blood vessel operations, while not allowing the passage of any fluids.

A system for use in a vascular procedure includes a guidewire dimensioned to remotely access a neurovascular space, a microcatheter for positioning over the guidewire, an interventional treatment element for passage within the catheter member of the microcatheter, and an outer guide positionable over the catheter member of the microcatheter upon removal of the catheter hub. The microcatheter includes an elongated catheter member and a catheter hub. The catheter member defines a longitudinal axis and has a longitudinal length and with proximal and distal ends. The catheter hub is connected to the proximal end of the catheter member and is dimensioned and adapted to be selectively released from the catheter member. The outer guide is advanceable over the catheter member of the microcatheter after the catheter hub is released from the catheter member to a location proximate the lesion. The interventional treatment element is adapted to perform treatment on the lesion within the vasculature

A guidewire occlusion system for use in vascular procedures includes a repeatably inflatable gas-filled occlusive device proximate a distal end of a tubular guidewire assembly having an extended sealable section proximate a proximal end. A gas inflation / evacuation system is removably connectable to the proximal end of the guidewire assembly and includes an evacuation system to evacuate air from the guidewire and an inflation system for introducing a gas under pressure into the guidewire to inflate the occlusive balloon a plurality of times. A sealing system is also removably connectable to the proximal end of the guidewire assembly and selectively seals the extended sealable section at one of a plurality of separate locations along the extended sealable section to form an airtight seal of the tubular guidewire. Each time a deflation of the occlusive device is desired to reestablish blood flow to the vessel downstream of the occlusive device, the extended sealable section is opened distal to the location of the last seal to quickly deflate the occlusive device.

A cardiovascular surgical clamp used for retaining, identifying and positioning surgical wire for patients on a sterile field without wire injury. Opposing members with opposing recessed surfaces and back end portions are provided having removable compressible inserts with large flat matching surface areas inserted into the recesses of opposing members. The opposing members have spring / s located between them for driving them together and for manually opening them apart and have hinges formed on projecting struts for allowing simultaneous contact of the large flat matching surface areas of the removable compressible inserts for frictional engagement of wire without injury. The projecting struts of the opposing members provide guide wire surfaces proximate where hinges are formed for guiding wire there through. The opposing members and the projecting struts are moved from a closed to open position and back by compression or release of back end portions of the opposing members.

The invention provides an oral medicine for treating the fatty liver. The oral medicine is prepared through using radix bupleuri, Artemisia capillaries, white peony root, Fructus Amomi, Rhizoma Sparganii, Polygonum multiflorum, haw, alga, Rhizoma Curcumae, safflower, Fructus Aurantii, Radish Seed, Fructus Toosendan, Immature Bitter Orange, Radix Codonopsis, Flos Citri Sarcodactylis, Rhizoma Polygoni Cuspidati, Ligusticum wallichii, Rhizoma Cyperi, Semen Cassiae, Abrus cantoniensis, Longstamen Onion Bulb, Rheum officinale, Herba Taraxaci, Rhizoma Alismatis, Caulis Perillae, Poria cocos, Pinellia Tuber, Pericarpium Arecae, Ligustri Lucidi Fructus, Rhizoma Coptidis, Polyporus Umbellatus, Bletilla striata, Rhizoma curcumae longae, Polygonatum sibiricum, Gentiana scabra Bunge, lotus leaf, coix seed, Luffa Vegetable Sponge and Fortune Eupatorium Herb. The oral medicine treats blood quickening, stasis dispelling, spleen invigorating, liver nourishing, dampness dispelling, yin nourishing and body fluid generating as a treatment principle, can simultaneously treat principal and subordinate symptoms, can realize the unblocked blood vessel operation, sufficient body fluid, healthy spleen and liver operation, and sufficient cerebral blood circulation, treats a series of clinic symptoms caused by the fatty liver, delays the generation of fatty liver pathologies, and improves the working and living qualities of persons.

The invention relates to a type of guiding hygroscopic hydro-entangled non-woven fabric used for surgical blood vessel operation, belonging to the weaving material technical field, and the guiding hygroscopic hydro-entangled non-woven fabric comprises a surface layer made of pearl line non-woven fabric, an interface layer made of plastic film, and a bottom layer made of spunbonded non-woven fabric, combined via hot rolling and bonding, wherein the upper layer fibre web of the pearl line non-woven fabric, directly in contact with patients, adopts the straight-paving technology, with weight accounting for two thirds of the surface non-woven fabric grammage; the lower layer fibre web adopts cross lapping technology, with weight accounting for one third of the surface non-woven fabric grammage; and the upper layer fibre web and the lower layer fibre web form the surface layer via hydro-entangled method. The guiding hygroscopic hydro-entangled non-woven fabric of the invention features thinness, high hygroscopicity, excellent diversion performance, and great antibiosis function. Moreover, the guiding hygroscopic hydro-entangled non-woven fabric has no fluff, is lint-free, and does not stick to the wound.

The invention discloses an imaging method of a three-dimensional blood vessel ultrasonic image and navigation equipment in an ultrasonic operation. The method comprises the following steps: a plurality of movement tracks at a target scanning part on a limb are determined; a mechanical arm drives a probe to move in sequence according to each movement track to obtain first ultrasonic data; and a plurality of ultrasonic images are generated according to the first ultrasonic data, and the generated ultrasonic images are subjected to image composite reconstruction to obtain a three-dimensional ultrasonic image of the target scanning part. According to the method, the mechanical arm controls the probe to move, three-dimensional image reconstruction is carried out on images collected by the probe, large-range ultrasonic image scanning and three-dimensional image reconstruction on the surface of a human body are achieved, and therefore, a complete three-dimensional ultrasonic image of large-range blood vessels in the human body is obtained, image matching and fusion can be carried out on the three-dimensional ultrasonic image and a three-dimensional DSA (or MRA and the like) image, a three-dimensional fusion image for guiding surgical operation is formed, and the vascular surgery is navigated through the three-dimensional fusion image, and the safety of the vascular surgery is improved.

The shape memory alloy (SMA) driven miniature guide device for interventional blood vessel operation is the application of SMA in biomedical engineering technology to raise the effectiveness and safety of operation with duct guiding. The miniature guide device includes one bias spring, at least three SMA springs and at least two connectors with central hole. The bias spring penetrates through central holes for fixation, and SMA springs are distributed homogeneously outside the bias spring and connected integrally with the outside of the containers. By means of SMA, the miniature guide device may be used in controlling the motion direction of duct or wire actively from the front end for accurate location so as to shorten operation period, reduce patientí»s pain and raise operation quality.

The invention provides endoscope image display techniques which can display images emphatically displaying blood vessel operation patterns and display information directly and clearly indicating whether parts with the blood vessel operation patterns are disease parts. A target is irradiated by oxygen saturation measurement light and blood vessel emphasizing illuminating light alternately. A colorful camera element is used for image acquisition of the target and image data with 2 frames is obtained. In the image data with 2 frames, blue image data (Bs) obtained during lighting of the oxygen saturation measurement light is distributed to a B channel of a display device and blue image data (Bn) and green image data (Gn) obtained during lighting of the blood vessel emphasizing illuminating light are distributed to a G channel and an R channel of the display device. When surface layer blood vessels and middle and deep layer blood vessels are emphatically displayed and only when the oxygen saturation is low, a second narrow-band image with change of the color of the surface layer blood vessels is displayed by the display device.

The invention discloses a rationality analyzing method for a blood vessel operation mode. The analyzing method comprises the following steps that 1, artery CT image data are obtained to set up an artery 3D model; 2, rebuilding is carried out on the basis of the 3D model; 3, MESH software is used for meshing 3D models obtained in the step 1 and the step 2 to obtain a mesh 3D model capable of being used for calculation; 4, FLUENT software is used for simulating and calculating blood flow data of the artery to obtain parameters of WSS, OSI and blood vessel wall deformation. The method is safe, noninvasive and easy to operate, the intuitive quantized reference is provided for selecting vascular anastomosis modes, and the effective model for scientific research and clinic service is set up.

An apparatus and a method for connecting medical tubing or any other type of fluidic circuit conduits (e.g., cannulae) to a ventricular assist device (“VAD”) or any other pumping device used for blood pumping during cardiac circulatory support for vascular surgery. The apparatus and the method prevent air bubbles from entering a cardiac circulatory support system when connecting cannulae to a VAD that may later enter the blood stream of a patient during cardiac surgery, and also provide for purging any air bubbles that may have entered the cardiac circulatory support system during a cannulae-VAD connection.

The vasoocclusive device for use in interventional therapy and vascular surgery adapted to be inserted into a portion of a vasculature, includes a vasoocclusive coil disposed about an inner reinforcement coil wherein said vasoocclusive coil is helically wound and the inner reinforcement coil forms a reverse helical winding opposite the vasoocclusive coil winding, thereby forming a biplex wound coil. The vasoocclusive device biplex winding provides improved mechanical properties to the device. An inner reinforcement stretch resistant member attached within the biplex windings limits coil stretchability.

The invention discloses a cardiovascular surgery risk assessment system and method. The cardiovascular surgery risk assessment system comprises the steps: obtaining an examination report of a first user and first surgery scheme information; inputting the two pieces of information into the first training model, and carrying out training through a plurality of groups of data; obtaining the first matching degree representing the matching degree of the first operation scheme information and the first examination report information; if the first matching degree is met, carrying out analysis according to an operation scheme, obtaining operation steps and the first operation process decomposition information corresponding to the risk degree, and if the first matching degree is not met, obtainingthe operation steps containing the first matching degree and the second operation process decomposition information corresponding to the risk degree, and then obtaining a first risk report. The technical problems that in the prior art, an operation risk assessment mode has limitation and is not comprehensive enough are solved.

The present invention provides a method for the prevention and / or reduction of peri- or postoperative complications following surgical intervention, such as complications following vascular surgery, especially peripheral vascular surgery, comprising administering a therapeutically effective amount of Annexin (A5) or a functional analogue or variant thereof to a patient in need of such treatment, Also provided is a pharmaceutical composition comprising a therapeutically effective amount of Annexin (A5) or a functional analogue or variant thereof for use in the prevention and / or reduction of peri- or postoperative complications following surgical intervention, such as complications following vascular surgery, especially peripheral vascular surgery.

The invention provides an oral medicine for treating the fatty liver. The oral medicine is prepared through using radix bupleuri, Artemisia capillaries, white peony root, Fructus Amomi, Rhizoma Sparganii, Polygonum multiflorum, haw, alga, Rhizoma Curcumae, safflower, Fructus Aurantii, Radish Seed, Fructus Toosendan, Immature Bitter Orange, Radix Codonopsis, Flos Citri Sarcodactylis, Rhizoma Polygoni Cuspidati, Ligusticum wallichii, Rhizoma Cyperi, Semen Cassiae, Abrus cantoniensis, Longstamen Onion Bulb, Rheum officinale, Herba Taraxaci, Rhizoma Alismatis, Caulis Perillae, Poria cocos, Pinellia Tuber, Pericarpium Arecae, Ligustri Lucidi Fructus, Rhizoma Coptidis, Polyporus Umbellatus, Bletilla striata, Rhizoma curcumae longae, Polygonatum sibiricum, Gentiana scabra Bunge, lotus leaf, coix seed, Luffa Vegetable Sponge and Fortune Eupatorium Herb. The oral medicine treats blood quickening, stasis dispelling, spleen invigorating, liver nourishing, dampness dispelling, yin nourishing and body fluid generating as a treatment principle, can simultaneously treat principal and subordinate symptoms, can realize the unblocked blood vessel operation, sufficient body fluid, healthy spleen and liver operation, and sufficient cerebral blood circulation, treats a series of clinic symptoms caused by the fatty liver, delays the generation of fatty liver pathologies, and improves the working and living qualities of persons.

The invention discloses an ultrasonic navigation method and equipment for a vascular operation. The method comprises the steps that one probe is used for tracking the movement track of a medical instrument to obtain a first ultrasonic image of the position where the medical instrument is located; second ultrasonic images of the front end of the medical instrument are obtained through the movementof the other probes according to the corresponding movement tracks; and the first ultrasonic image, the second ultrasonic images and a three-dimensional ultrasonic image are fused, and the operation is guided through a two-dimensional image obtained by fusion. According to the method, the ultrasonic images of the front end of the medical instrument and the ultrasonic image of the position where the medical instrument is located are obtained in the operation process, the obtained ultrasonic images and the three-dimensional ultrasonic image are fused, the blood flow information of the medical instrument is determined according to the image obtained through fusion, and the vascular operation is navigated according to the blood flow information, so that application of the ultrasonic equipmentin limb blood vessel navigation is realized, and meanwhile, the safety of the vascular operation is improved.

The invention discloses a pair of bendable operating forceps applied to a minimally invasive surgery. The pair of bendable operating forceps comprises a forceps head driving mechanism and a forceps head control mechanism, wherein the forceps head driving mechanism comprises a first handle, a first driving shaft, a first forceps handle and a second forceps handle, the first handle is movably connected to the first end of the first driving shaft, and the first forceps handle and the second forceps handle are movably connected to the second end of the first driving shaft separately; and the forceps head control mechanism comprises a forceps sleeve, a second driving shaft and a second handle, the forceps sleeve is hinged to the second end of the second driving shaft, and the second handle is movably connected to the first end of the second driving shaft. The pair of bendable operating forceps disclosed by the invention can be bent to clamp or close a tissue or a blood vessel, and is relatively large in operating range and flexible to use, the size of an inlay is reduced, and the pair of bendable operating forceps is reasonable in structure.

The invention discloses a pressing hemostasis device for internal medicine cardiovascular surgery, and relates to the field of medical instruments. The pressing hemostasis device for the internal medicine cardiovascular surgery comprises a hemostasis device base, a fixed clamping end structural part, a movable clamping end structural part, a tightening end structural part and pressure hemostasis gauze, wherein the hemostasis device base comprises an arc-shaped groove fixing block and an arc-shaped rubber cushion block, the arc-shaped rubber cushion block is fixedly connected to the bottom of the arc-shaped groove fixing block through a bolt, the fixed clamping end structural part is fixedly connected to the left side of the hemostasis device base, and the movable clamping end structural part is arranged on the right side of the hemostasis device base. When the pressing hemostasis device for the internal medicine cardiovascular surgery is processed and manufactured, the pressing hemostasis device is convenient to manufacture, low in cost and particularly suitable for pressing hemostasis operation in the surgery of internal medicine cardiovascular diseases, the device has important significance in the internal medicine cardiovascular surgery, the surgery difficulty is reduced, the risk of the surgery is avoided, and the device is suitable for popularization.

A stent delivery apparatus and / or system including a hollow tubular body with a proximal opening at a proximal end of the hollow tubular body and a distal opening at a distal end of the hollow tubular body. The hollow tubular body can define the proximal opening and the distal opening. A support rod can be passed through the proximal opening and / or the distal opening. The support rod may have a tip, and tip can be olive shaped. A stent may be supported by and / or surround the support rod. The tip of the support rod may also engage with the stent during delivery.

The invention is applicable to the field of man-machine interaction, and provides a method and a device for simulating blood flow and vascular wall effects. The method includes calculating pressure density, viscous-force density and external-force density of fluid particles in blood vessels by the smooth-particle fluid dynamics method; calculating rebound boundary force applied to boundary particles at the junctions of vascular walls and blood flow by a mass point spring model; integrating the calculated force and upgrading dynamic information of the blood flow and the vascular walls. According to the method, deformation of the vascular walls can be simulated while blood flowing is simulated, the particles located at the junctions can be regarded as the boundary particles in the smooth-particle fluid dynamics method and in the mass point spring model, and more real, real-time and effective interactive information can be provided for a virtual blood vessel operation system through calculation of the rebound boundary force.

The invention discloses a pressing hemostasis device for cardiovascular surgery in the internal medicine department, and relates to the field of medical instruments. The pressing hemostasis device for the cardiovascular surgery in the internal medicine department comprises a hemostasis device base, a fixed clamping end structural part, a movable clamping end structural part, a tightening end structural part and pressure hemostasis gauze. The hemostasis device base comprises an arc-shaped groove fixing block and an arc-shaped rubber cushion block; the arc-shaped rubber cushion block is fixedly connected to the bottom of the arc-shaped groove fixing block through a bolt, the fixed clamping end structural part is fixedly connected to the left side of the hemostasis device base, and the movable clamping end structural part is arranged on the right side of the hemostasis device base. When being processed and manufactured, the pressing hemostasis device for the cardiovascular surgery in the internal medicine department is convenient to manufacture and low in cost, and is particularly suitable for pressing hemostasis operation in the surgery of cardiovascular diseases of the internal medicine department. The device has important significance in the cardiovascular surgery of the internal medicine department, reduces the difficulty of the surgery, avoids danger of the surgery, and is suitable for popularization.

The invention discloses an intracavity intima peeling device, which comprises a first pipe, a second pipe, an outlet, a passage, a thorn and a driving element, wherein the first end of the first pipeis a peeling head capable of being used for peeling the intima from the inner wall of the cavity; the first end of the second pipe extends in from the second end of the first pipe and can extend out from the first end of the first pipe, is movably matched with the first pipe and can rotate to and fro; the outlet is formed in the outer wall of the first end of the second pipe; one end of the passage communicates with the outlet; the other end of the passage extends in the direction towards the inner wall of the second pipe and penetrates through the inner wall of the second pipe; the thorn is movably arranged in the passage, and comprises a main thorn end; the driving element is movably arranged in the second pipe in a sleeving way, and can drive the main thorn end of the thorn to extend out of the outlet. When the intracavity intima peeling device is used for operation, the blood vessel incision is not needed; the operation wound is small (minimally invasive); the artificial stenosis due to incision and suture can be avoided; the hyperplasia endangium can be integrally peeled away; the occurrence rate of restenosis is reduced.

The invention discloses an anesthesia auxiliary support for the cardiovascular department. The anesthesia auxiliary support comprises a cabinet body, wherein a rotating groove and a groove are formedin the cabinet body; two symmetrical rotating shafts are rotatably connected in the cabinet body; one end of each rotating shaft extends into the rotating groove and is fixedly connected with a gear;the ends, away from the gears, of the two rotating shafts extend into the groove and are fixedly connected with first synchronous wheels; and a driving motor is fixedly connected to the inner wall ofthe bottom of the groove. According to the anesthesia auxiliary support, the heights and angles of a needle cylinder and an anesthesia needle can be adjusted, so that the needle cylinder and the anesthesia needle quickly move to the part needing anesthesia, and the preparation time before a cardiovascular operation is shortened; and the part needing anesthesia can be accurately positioned and quickly anesthetized through an infrared indicator lamp and a second electric push rod, errors are reduced, secondary anesthesia is prevented, the operation process is accelerated, waste of anesthetic isreduced, and damage to a patient due to excessive use of the anesthetic is reduced.

The invention discloses an intubation device for cardiovascular surgery. The intubation device comprises a handle and an expansion shaft, wherein a handle cover is arranged at one end of the handle; the handle cover is screwed on the handle; an operation panel is arranged in the middle of one side wall of the handle; a switch and a control knob are arranged on the operation panel; a power supply is arranged on one side of the inner bottom end of the handle; a motor is arranged on one side of the power supply; a booster pump is arranged on one side, far away from the power supply, of the motor;and a fan is arranged on one side, far away from the motor, of the booster pump. The intubation device has the beneficial effects that due to adoption of the motor, the booster pump and a telescopicrod, uniform extension and withdrawing of a tube in the intubation process can be achieved, and patients can be effectively prevented from vascular injury caused by non-uniform intubation speeds in the intubation process; and due to adoption of the expansion shaft and a scale strip, deformation of the tube can be effectively prevented in the intubation process, the length of the tube can be controlled, and the reliability of intubation can be improved.

The invention discloses a vascular surgery arteriovenous surgery hemostasis device, which comprises a vascular surgery hemostasis mechanism body, a blood concentration adjusting mechanism, a hemostasis local fixing mechanism, a surgical hemostasis wrapping mechanism, a surgical blood leading-out mechanism, a comprehensive management control mechanism and an atomization cooling disinfection mechanism, wherein the hemostasis local fixing mechanism is arranged at one end of the vascular surgery hemostasis mechanism body, the surgical hemostasis wrapping mechanism is arranged at the other end of the hemostasis local fixing mechanism, the comprehensive management control mechanism is arranged on the outer side surface of an artery hemostasis wrapping mechanism, the atomization cooling disinfection mechanism is arranged on the inner side surface of the artery hemostasis wrapping mechanism, the blood concentration adjusting mechanism is arranged on the side surface of the other end of the surgical hemostasis wrapping mechanism, and the surgical blood leading-out mechanism is arranged on the side surface of the blood concentration adjusting mechanism. According to the invention, the device is simple in structure and convenient and fast to operate and use, hemostasis of limbs or local arteriovenous exposed parts of a patient can be achieved, the problem of large-area trauma of the body of the patient is effectively solved, and temporary hemostasis in an operation is achieved.

The invention relates to a type of guiding hygroscopic hydro-entangled non-woven fabric used for surgical blood vessel operation, belonging to the weaving material technical field, and the guiding hygroscopic hydro-entangled non-woven fabric comprises a surface layer made of pearl line non-woven fabric, an interface layer made of plastic film, and a bottom layer made of spunbonded non-woven fabric, combined via hot rolling and bonding, wherein the upper layer fibre web of the pearl line non-woven fabric, directly in contact with patients, adopts the straight-paving technology, with weight accounting for two thirds of the surface non-woven fabric grammage; the lower layer fibre web adopts cross lapping technology, with weight accounting for one third of the surface non-woven fabric grammage; and the upper layer fibre web and the lower layer fibre web form the surface layer via hydro-entangled method. The guiding hygroscopic hydro-entangled non-woven fabric of the invention features thinness, high hygroscopicity, excellent diversion performance, and great antibiosis function. Moreover, the guiding hygroscopic hydro-entangled non-woven fabric has no fluff, is lint-free, and does not stick to the wound.