137 results about "Vital organ" patented technology

A system and method for treating and repairing complex anatomy characterized by a plurality of vessel portions oriented at various angles relative to each other. The system including a graft device that is capable of being assembled in situ and has associated therewith a method that avoids the cessation of blood flow to vital organs. A delivery catheter system and various graft supporting, mating and anchoring structures are additionally included.

A radiation applicator system is structured to be mounted to a radiation source for providing a predefined dose of radiation for treating a localized area or volume, such as the tissue surrounding the site of an excised tumor. The applicator system includes an applicator and an adapter. The adapter is formed for fixedly securing the applicator to a radiation source, such as a radiosurgery system which produces a predefined radiation dose profile with respect to a predefined location along the radiation producing probe. The applicator includes a shank and an applicator head, wherein the head is located at a distal end of the applicator shank. A proximate end of the applicator shank couples to the adapter. A distal end of the shank includes the applicator head, which is adapted for engaging and/or supporting the area or volume to be treated with a predefined does of radiation. The applicator can include a low energy radiation filter inside of the applicator head to reduce undesirable low energy radiation emissions. A biocompatible radiation shield may be coupled to the outer surface of the applicator head to block radiation emitted from a portion of the radiation probe, in order to shield an adjacent location or vital organ from any undesired radiation exposure. A plurality of applicators having applicator heads and radiation shields of different sizes and shapes can be provided to accommodate treatment sites of various sizes and shapes.

Disclosed herein are agents for enhancing the contrast in an ultrasound image. These agents are extremely small bubbles, or “microbubbles,” comprised of specially selected gases. The microbubbles described herein exhibit long life spans in solution and may be produced at a size small enough to traverse the lungs, thus enabling improved ultrasound imaging of the cardiovascular system and other vital organs. Also disclosed herein is a method for selecting gases from which contrast agents may be produced. The method is based on calculations using inherent physical properties of gases and describes a means to associate the properties of a gas with the time for dissolution of microbubbles comprised of the gas.

A hybrid prolapse repair material comprising a polypropylene and a graft body attached together. Attachments are provided for detachably attaching a repair material to a needle. A needle and a system for using the needle are contemplated to get repair material closer to the ischial spine. Graft to arm attachment concepts are taught to couple a mesh to a graft body. Additionally, a hysterectomy tool is provided to allow a surgeon to track vital organs.

The invention discloses a tumor isocenter multi-angle non-planar percutaneous puncture method belonging to a novel method that a doctor carries out tumor percutaneous puncture on a tumor patient under the guidance of CT in the technical field of medical treatment, and solving the problems of high dependence on experiences and techniques of an operator, easy generation of larger puncture errors, long occupation time of puncture, large difficulty in puncturing smaller tumors or deeper tumors in early stage, and low success rate in the tumor percutaneous puncture technology. The technical scheme is as follows: the tumor isocenter multi-angle non-planar percutaneous puncture method comprises the steps of sharing an isocenter by a center point of a semi-circular piercer and a center point of a tumor through coordinate system transfer, and driving a puncture needle for realizing multi-angle non-planar puncture through sliding of an arrow rest and rotating of the piercer. The tumor isocenter multi-angle non-planar percutaneous puncture method has the advantages that the problems of high dependence on experiences and techniques of the operator, easy generation of larger puncture errors, long occupation time of puncture, large difficulty in puncturing smaller tumors or deeper tumors in early stage, and low success rate in the tumor percutaneous puncture technology are solved, vital organs, puncture taboo organs and taboo focuses can be effectively avoided, the tumor percutaneous puncture error can be shortened to 2mm under the guidance of the CT, and the highest tumor percutaneous puncture precision at home and abroad is achieved.

The invention relates to the field of medicine technology and provides an injection for curing ischemic-reperfusion damage of brain, heart, kidney and other tissue organs. The preparation method includes placing a medical injection flexible bag under low pressure for degasification, carrying out low-temperature pretreatment after air extraction, then injecting hydrogen for pressurized dissolution and dissolving hydrogen in the injection and storing under constant pressure and about 4 DEG C for standby. The injection can be used after 24-hour stabilization. The animal experiment proves that the injection of the invention can reduce focal cerebral ischemic-reperfusion damage in rats, neuron injuries and apoptosis number, decrease the activity of apoptosis enzyme in pallium and hippocampus, reduce the ischemic-reperfusion damage extent of heart and kidney and protect the function of ischemic-reperfusion heart and kidney. The hydrogen-included injection can be used as the medicine for curing the ischemic-reperfusion damages of brain, heart, kidney and other important organs.

The invention discloses a pre-adaptation training system based on high-concentration oxygen and low-concentration oxygen combination. The system comprises a central processing unit, a high-concentration oxygen and low-concentration oxygen generating device, a physiological parameter monitoring unit and a remote network data platform, wherein the central processing unit is based on a pre-stored training scheme, sends a control instruction to the high-concentration oxygen and low-concentration oxygen generating device, and builds data communication with the remote network data platform and the physiological parameter monitoring unit; the high-concentration oxygen and low-concentration oxygen generating device receives the control instruction of the central processing unit, and alternately outputs high-concentration oxygen or low-concentration oxygen; the physiological parameter monitoring unit is used for collecting the physiological parameters of a user in the current state in real time; and the remote network data platform performs comparison and analysis on the collected physiological parameters of the user in the current state on the basis of the preset physiological parameter standard range. The pre-adaptation training system based on high-concentration oxygen and low-concentration oxygen combination provided by the invention provides a safe and effective measure for a trainee, and can be used for improving the human body anoxia-resistant and hypoxia-resistant capability through high-concentration oxygen and low-concentration oxygen combined pre-adaptation training as a prevention and treatment measure different from conventional medicine or surgical intervention. A protection effect is achieved on important organs such as kidneys, intestines and lungs, and the human body health is promoted.

The invention relates to medicine, and more particularly to gravity therapy, and can be used in the comprehensive treatment and rehabilitation of patients having neurological, cardiological and therapeutic profiles with circulatory insufficiency. The technical result is achieved in that the patient is placed in a right lateral recumbent position on an inversion table with their legs bent at the knees and the thighs spread at 30-60 degrees. The patient is secured by the pelvis with the aid of a soft securing device. The parameters of a cycle of oscillatory movements to be performed by the inversion table as the head part of the table is lowered or raised, i.e. variable angles of rotation about the longitudinal and transverse axes of the table, the oscillation frequency of the table and the maximum angle of inclination of the head part of the table, are set using an operating console. When in operation, the inversion table performs oscillatory movements changing the direction of rotation of the table about the axis and the angle of inclination of the table, the head part of the table being gradually lowered and returned to its starting position. Use of the claimed invention increases the efficacy of treatment of patient diseases related to circulatory insufficiency while avoiding negative effects on the patient in the form of reflex reactions, raised arterial pressure and the disruption of venous outflow from the vital organs.

The invention relates to the field of medical instruments, in particular to an arteriovenous puncture instrument, which comprises a system computer, color ultrasonic diagnosis software or a portable ultrasonic diagnosis instrument, cross-shaped cursor positioning display software, cursor positioning computation confirmation sound and misplacement alarm sound software, and is characterized in that: a puncture positioning connecting rod 1-2 is a sterile assembly which is positioned and assembled in a sliding piece interface 1-16 of the arteriovenous puncture instrument; an ultrasonic transducer 1-1 is used for transmitting ultrasound for acquiring arteriovenous blood vessel positioning data; a computer ultrasonic transduction assembly 15 is used for performing data conversion on information of a three-dimensional positioning-sensing assembly 1-11; and a three-dimensional positioning sliding piece 1-12 is used for automatically or manually controlling the sterile puncture positioning connecting rod 1-2 to position and puncture arteriovenous blood vessels. Due to the adoption of the arteriovenous puncture instrument, puncture treatment can be guided quickly and accurately, the puncture accuracy is increased, the puncture difficulty is lowered, the efficiency is increased, important organs are prevented from being hurt accidentally, surrounding tissue damage and complicating diseases are reduced, and the first aid success rate is increased.

An anti-wedging, controlled deployment broadhead with an over-center of gravity blade geometry for bow-hunting that has the ability to penetrate bone and soft tissue deeply before deploying its blades while conserving the highest possible amount of kinetic energy in flight and at target. The inventive device includes the one-piece body, specially aligned and faceted cutting tip, blades, O-ring, and set screws. The blades have independent pivots that also act as travel limiters, are arch shaped with very sharp leading edges and a J-shaped lever. The center of gravity of each of the blades is oriented so as to insure retaining each blade in its respective retracted position during acceleration and assisting in deployment thereof during deceleration. The device with its special body and blade geometry now allows for more energy and blade area to be delivered to the vital organs of game to facilitate a faster and more humane harvest.

The invention discloses a novel cathepsin B activation type targeted anti-tumor polypeptide m(KLA)-iRGD, the molecular weight is 2570, and the amino acid sequence is D(KLAKLAKKLAKLA)KGGCRGDKGPDC. The polypeptide is formed by KLA peptide and iRGD peptide through flexible connexon Gly-Gly. The sequence of the KLA peptide is KLAKLAKKLAKLAK, and amino acids of the KLAKLAKKLAKLA sequence at the N terminal of the polypeptide are all D-amino acids. The sequence of the iRGD peptide is CRGDKGPDC. The polypeptide has the advantage that the tumor targeted peptide iRGD and the apoptosis promoting peptide KLA are connected into the new polypeptide m(KLA)-iRGD for the first time. The polypeptide m(KLA)-iRGD can be specifically combined with alphaVbeta3 and NRP-1 receptors and enter tumor cells, mitochondrial apoptosis is initiated after the polypeptide is activated by intracellular cathepsin B (CTSB), tumor cells are selectively killed, and growth and migration of tumors are remarkably inhibited. Under the same concentration, a polypeptide m(KLA)-iRGD comparison peptide has higher tumor targeting and higher capacity of inhibiting tumor growth and migration. Meanwhile, the polypeptide m(KLA)-iRGD has no obvious toxicity on mouse weight and vital organs, and a solid foundation is laid for further clinical research and application.

The invention discloses a four-dimensional percutaneous biopsy puncturing instrument which comprises a main puncture needle and an auxiliary puncture needle, wherein a main puncture needle core is arranged inside the main puncture needle; a navigator is mounted at the end part of the main puncture needle core, and is connected with a displayer; the auxiliary puncture needle comprises an end part, a needle tube part, an elastic bending part and a needle tip part. Through the adoption of the technical scheme, an MSCT four-dimensional positioning data is adopted as a basis, three angular velocity sensors and one displacement sensor are used for fully reacting the four-dimensional spatial positions of the puncture needles through the data navigation, the spatial positions of the puncture needles can be displayed in a real-time manner, the puncture path and the needle inserting angle can be adjusted at any time, blood vessels and other vital organs can be effectively avoided, and the objective can be accurately punctured. A clinical experiment proves that the puncture accuracy rate is 99%, the complication occurrence rate is 15%, and the radiation dosage is reduced by 80%.

A method for administering a drug to a patient comprises coupling a valve system to the patient's airway. The valve system is configured to prevent or impede respiratory gases from flowing into the lungs for at least some time such that the intrathoracic pressure is less than atmospheric pressure. A drug is introduced into the patient, and the intrathoracic pressure is lowered using the valve system to cause blood to flow into the thorax and thereby increasing vital organ perfusion to enhance the circulation of the drug.