30 results about "Heart bypass" patented technology

Ischemia-reperfusion injury commonly results from any surgical procedure requiring stopping of blood supply to an organ followed by reperfusion such as in heart bypass, angioplasty or organ transplant. The invention discloses a method to harness the innate power of repetitive transient ischemia in protecting organs against imminent ischemia-reperfusion, or any patho-physiological insults. This method of optimal remote ischemic preconditioning (ORIP) comprises of utilizing a pair of programmable pneumatic cuffs that inflate/deflate alternately occluding blood circulation to each of the limbs for pre-defined time intervals. The apparatus delivers maximal ORIP dose in shortest possible time either as an EMS procedure during patient transportation to hospital, as elective pre-surgery treatment, or in critical care for preventing multiple-organ-dysfunction-syndrome. ORIP can be self-administered and remotely monitored by clinician especially in chronic patients for homeostasis of malfunctioning target organs. ORIP may also be deployed as adjunct in angioplasty, gene/stem cell heart repair therapies.

Pump and cannula systems inserted through the right side and/or left side of the heart provide protection against collapse of the heart chambers and veins and arteries and provide supplemental blood flow through same to enable beating heart bypass surgery on all vessels of the heart, including lateral and posterior vessels. The invention eliminates the use of cardiopulmonary bypass (CPB) machines. The invention further provides stents adapted for protecting from vein, artery, atrium and/or ventricle collapse during beating heart bypass surgery.

A blood pump having a supplemental outflow port and/or a supplemental inflow port. A supplemental outflow port can be used to supply blood to regions of the body during heart bypass operations, such as to perfuse heart tissue downstream from an anastomosis site during CABG procedures so as to reduce the damage to the heart tissue. A supplemental inflow port can be used to infuse blood and/or various other fluids or compositions into the patient's blood stream, such as may be helpful or advantageous during emergency situations in cardiac surgery.

The invention discloses a sensor for measuring flow of cardiac arterial branch blood vessels, including a heating portion and sensing portions that are controlled to work cooperatively, wherein at thetime of use, the heating portion covers the surface of the aortic vessel of the heart; the sensing portions are uniformly arranged on the surface of the collateral blood vessel tissue; the heating portion heats the blood passing through the aortic artery of the heart, and detects the temperature change information generated when the heated blood flows through the cardiac artery collateral vesselby the sensing unit array of the sensing portions, thereby realizing the measurement of the cardiac artery collateral vessel flow rate based on the temperature change information. The sensor of the invention can be implanted into a human body, can continuously and long-term detect the blood vessel state of the cardiac artery side branch, and effectively solves the problem of monitoring the blood circulation state of the arterial blood vessel after the cardiac bypass operation by simultaneously measuring variables such as temperature, pressure, blood flow and the like, and provides an effectivebasis for the health of the patient.

The invention relates to a heart bypass simulator which comprises a base, a control circuit board is installed in the base, and a touch screen electrically connected with the control circuit board isinstalled at the top of the base; the middle part of the top end of the base is connected with a bounce simulation mechanism which is used for simulating vascular suture at any position and at any angle in a cardiac bypass surgery and is electrically connected with the control circuit board; a blood vessel clamping groove assembly used for fixing an exercise blood vessel X is fixed to the top of the bounce simulation mechanism. A top plate is foldably supported on the base through a supporting arm; an irregular surgical field through hole is formed in the middle of the top end of the top plateand adjusted to different simulated anastomosis depths along with the supporting arm, a blood vessel fixing clamp and a suture line fixator are fixed to the edge of the top end of the top plate, andan oval LED lamp ring is arranged at the bottom of the top plate. The simulator can meet the requirements of vascular suture training at various positions and angles, does not need assistance of otherpeople, achieves training completed by a single person, simulates the surgical field on the top plate, simulates the shadowless lamp effect through the LED lamp ring, is good in operation convenienceand does not need to be practiced in a fixed place.

The embodiment of the invention discloses a model construction method, device and equipment based on blood vessel bridging and a storage medium. The method comprises the following steps: obtaining aninitial heart model comprising a first blood vessel model and a second blood vessel model; generating a vascular bridging model based on the initial construction parameters, wherein the initial construction parameters comprise a first anastomosis point on the first blood vessel model and a second anastomosis point on the second blood vessel model; and based on the initial heart model and the vascular bridging model, generating a heart bypass model, and displaying the heart bypass model. According to the embodiment of the invention, the heart bypass model is constructed based on the initial heart model and the bypass vascular model, so that the problem of more unknown risks in a heart bypass operation solution is solved, and a reliable reference is provided for doctors to formulate the heart bypass operation solution and carry out a heart bypass operation so as to reduce the risk of the heart bypass operation.

The invention discloses a dressing device for an infected dehiscent incisional wound after heart bypass surgery. The dressing device comprises a connecting tube, a suction tube, a drainage tube and a liquid collecting bottle, wherein the connecting tube, the suction tube and the drainage tube are communicated through a tee junction; the free end of the connecting tube is communicated with a negative pressure center through the liquid collecting bottle; the free end of the suction tube is provided with a sucker; the bottom of the sucker is provided with a top layer of sponge; the tube wall of the free end of the drainage tube is coated with a bottom layer of sponge, and the tube wall of the drainage tube arranged in the bottom layer of sponge is provided with a plurality of side ports; liquid inlet end of the drainage tube is internally provided with a lavage tube in an inserting manner, and the tube wall of the lavage tube arranged in the drainage tube is provided with a plurality of side ports; the bottom layer of sponge is sealed by a first semipermeable film; the top layer of sponge is sealed by a second semipermeable film. The dressing device has the characteristics that the wound can be rapidly closed, the wound surface is lessened, efficient drainage is realized, the formation of new vessels can be promoted, the regeneration of granulation tissues is quickened, anti-infection and healing promoting of the wound are realized, no pain occurs and the like.

The invention relates to a method for establishing a bypass vessel permeability prediction model based on wall surface cutting stress image features during heart bypass surgery, and belongs to the field of model building. A bypass vessel instant blood flow waveform measured during the surgery is digitally processed to serve as a boundary condition to be assigned to a bypass surgery three-dimensional model, a wall surface cutting stress cloud diagram of the anastomotic opening part is obtained through a finite element method, color features and texture features of the image are extracted, thendimension reduction processing is conducted on the features by using a principal component analysis method, and then the features obtained after dimension reduction are used for constructing the prediction model based on a support vector machine. The method can be used for helping a doctor and a patient to know surgical effects to determine a strategy for further surgeries or a scheme for postoperative re-examination.

The invention provides a traditional Chinese medicine for treating hypertension and complications. The traditional Chinese medicine is prepared from the following components: 5-10g of radix puerariae, 5-10g of semen cassiae, 3-5g of processed rhizoma typhonii, 5-10g of notopterygium roots, 5-10g of rhizoma curcumae longae, 5-10g of bletilla striata and 3-10g of semen raphani. A preparation method comprises the following steps: material selection, content detection, drying and slicing, disinfection and sterilization, crushing and mixing, quality detection, encapsulation and packaging. The food-medicine powder provided by the invention is yellowish-brown in appearance, and is decocted or soaked into an aqueous solution to be yellowish-brown liquid. 30g of the traditional Chinese medicine is orally taken after breakfast and supper after the traditional Chinese medicine is infused, one treatment course lasts for 20 days, one treatment course is generally taken for the hypertension, and patients with severe hypertension and complications can be healed after taking the traditional Chinese medicine for 2-3 treatment courses. The traditional Chinese medicine is used for treating symptoms such as head numbness and dizziness or pain, cerebral thrombosis, myocardial infarction, coronary heart disease, hemiplegia, apoplexy, lower limb angiitis, swelling and pain of both knee joints and uremia of hypertension complications, has the effects of treating both symptoms and root causes, avoiding secondary apoplexy and overcoming cardiac bridging and shelving operations, and has no toxic or side effect on a human body.

The invention provides a traditional Chinese medicinal preparation for treating chest congestion after heart bypass. The traditional Chinese medicinal preparation consists of the following medicinal raw materials: raw radix astragali, body of radix angelicae sinensis, sun-cured ginseng, longan aril, rhizoma ligustici wallichii, borneol, radix notoginseng powder, cassia twig, radix salviae miltiorrhizae, radix paeoniae rubra, cortex moutan, rhizoma corydalis, fructus forsythia, honeysuckle flowers, storax, XinHui dried tangerine peel, cortex magnoliae officinalis, radix aucklandiae, raw fructus crataegi, red yeast rice, radix puerariae, root of kirilow rhodiola, folium ginkgo, scorpio, radix ophiopogonis and fruits of Chinese magnoliavine. The traditional Chinese medicinal preparation, when applied in accordance with the symptoms of qi deficiency and blood stasis, and blockade of heart vessels in patients, can take a good improving effect; the traditional Chinese medicinal preparation has therapeutic advantages which are in lack in Western medicines; and the traditional Chinese medicinal preparation is suitable for clinical popularization.

The invention discloses a cardiac surgery bypass operation device for cardiology. The cardiac surgery bypass operation device for cardiology comprises a casing and a heart pass stabilizing device. A four-drive motor, a deformation quantity sensor, a gear meshing transmission device and a CPU controller are further contained in the casing. The four-drive motor is connected with the deformation quantity sensor, and the deformation quantity sensor is connected with the gear meshing transmission device connected with the CPU controller. The four-drive motor provides a driving force through four motors; after the four-drive motor generates a torque, the torque is conducted to the gear meshing transmission device through the deformation quantity sensor, the gear meshing transmission device is controlled by the CPU controller to transmit the torque to a handle of the heart pass stabilizing device, to complete the bypass operation of the cardiac surgery. The cardiac surgery bypass operation device is high in operation precision, safe and convenient.

The invention relates to a cardiac bypass mode selection system. The system comprises: a radiography grabbing mechanism which is connected with a radiography execution mechanism and used for receivinga cardiac radiography image acquired by the radiography execution mechanism through X-ray scanning; and signal conversion equipment which is connected with a length identification mechanism and is used for carrying out mean value calculation on the lengths of blood vessels corresponding to the imaging areas respectively to obtain the average blocked blood vessel length, and sending an arterial bridge selection signal when the average blocked blood vessel length is greater than a preset length threshold value. The cardiac bypass mode selection system is effective in analysis and saves time. Since the disease condition of each patient needing heart bypass can be analyzed in a mechanical discrimination mode, the bypass mode of a vein bridge or the artery bridge can be automatically selectedbased on the average length of the blocked blood vessels, and the time required by medical decision is saved.

The invention relates to a blood cannula for discharging blood into a vessel, in particular aortic cannula for discharging blood into an aortic arch during heart-bypass surgery, comprising a tubular body (1), the tubular body having a straight part at the proximal end (2) and a bent part at the distal end (3) leading into an outlet opening (5), wherein the distal end (3), in particular the bent part has an increasing cross section in the direction of blood flow (B).