39 results about "Ulnar artery" patented technology

A method and a device for non-invasive blood pressure measurement wherein the angle between the hand and the wrist, and the turning angle of the wrist relative to the middle part of the forearm, are kept to the most suitable degree for measuring the blood pressure of the radial artery. At least one pressure bladder and one arterial pulse transducer array are placed on the skin over the radial artery of the wrist to apply the external pressure to the artery and to detect the change of the arterial pulse signals. This method and device can correctly measure the intermittent or continuous blood pressure of the radial artery or the ulnar artery based on the principles of oscillation method and volume compensation method, and effectively eliminate the influence on the measurement due to body movement and the influence on blood circulation and neural function of the hand caused by long-term blood pressure measurement.

A radial closure device has a compression element to place compression force against the radial access site. The invention further comprises an occlusion element that places an occlusion force against the ulnar artery to reduce blood pressure at the arteriotomy site and increase blood flow in the radial artery thereby reducing radial artery occlusion and reducing the time and compression force to achieve hemostasis. A radial restriction element can also be placed upstream of the access site to further reduce radial blood pressure at the arteriotomy site.

A present invention method of obtaining patent hemostasis of the radial artery by compressing the uninstrumented ulnar artery to increase radial artery flow while applying pressure to the radial artery access site; the invention further concerns a device for applying blunt pressure to the ulnar artery, and a method of use.

A CPU of a blood pressure measurement apparatus configured to be used while attached to a wrist of a measurement subject calculates an inclination angle formed by a forearm of the measurement subject with respect to a reference plane, and a rotation angle about an axis, where the forearm is used as the axis, of the blood pressure measurement device, based on information detected by an acceleration sensor, and uses the distance d between the radial artery and the ulnar artery that pass through the wrist, the inclination angle, and the rotation angle to determine the relative positional relationship between the radial artery and the ulnar artery. In accordance with the relative positional relationship, the CPU guides the measurement orientation of the measurement subject.

One bracelet embodiment provides therapeutic blood irradiation at a first wrist region using a first module, and body temperature regulation/irradiation at a second wrist region using a second module. A connector couples one end of the modules together, while an attachment band releasably couples the second ends together, for attachment to the wrist. The first module includes first and second distributed pluralities of lights respectively emitting 850 and 660 nm wavelengths, and a third plurality emitting 630 nm, 532 nm, and 450 nm wavelengths, positioned in a row substantially parallel to the arm of the user. The second module includes first and second rows of lights on first and second sides of a cooling unit, each emitting 405 nm wavelengths, with the two rows positioned for penetration to the radial and ulnar arteries. The bracelet includes a microprocessor, LED screen, and firmware for displaying a GUI permitting treatment protocol selections.

The invention discloses a heart rate monitoring wearable device and a monitoring method based on the photoelectric volumetric method. The invention is based on the photoelectric volumetric method to monitor the heart rate of the elderly in real time. The heart rate measurement module uses a heart rate sensor and embeds the heart rate sensor in a wearable watch middle. The main control chip is C8051F340, which is used to control the work of the sensor as well as signal processing and calculation. In order to make the measurement more accurate, there are two heart rate sensors on each wearable device, which measure the heart rate at the ulnar artery and the radial artery respectively. During the measurement process, due to the intentional or unintentional movement of the elderly, motion artifacts will be generated, which will affect the calculation results. Therefore, the output PPG signal needs to be processed (removing motion artifacts) after being amplified and input to the main control chip after analog-to-digital conversion. Perform heart rate calculations. The present invention uses a compressed sensing algorithm to filter the noise of the PPG signal, and since both the signal and the noise are unknown, the gradient projection algorithm is used to recover the signal, and finally the PPG signal is reconstructed.

A living body information measuring apparatus can suppress the bulge of tendons due to the bending of a wrist or fingers, and has good contact intimacy with arteries, making it possible to make accurate measurements of living body information. A cuff is formed of: a compression fluid bag which is provided for detecting a pulse wave signal, and which can be expanded and contracted by being supplied with a fluid; and two auxiliary fluid bags which are provided on an outer side of the compression fluid bag, and which can be expanded and contracted by being supplied with the fluid. The auxiliary fluid bags have a two-layer structure, and are connected to the compression fluid bag via opening portions, while the auxiliary fluid bags are respectively divided from each other. The compression fluid bag compresses the tendons, the radial artery and the ulnar artery, while the auxiliary fluid bag and the auxiliary fluid bag compress the radial artery and the ulnar artery, respectively. Thus, the bulge of the tendons due to the bending of the wrist and fingers can be suppressed, so that the contact intimacy of the compression fluid bag and the auxiliary fluid bags with the wrist is not hindered

The invention relates to a radial artery dual-airbag intelligent compression hemostasis device which comprises a wristband, a radial artery airbag, an ulnar artery airbag, an oxyhemoglobin saturation monitoring probe, a pressure sensor, a program control air pump, a program control switch and a control terminal. The radial artery airbag and the ulnar artery airbag are arranged on the wristband in a spaced mode and connected with the program control air pump. Connecting pipe fittings of the airbags and the program control air pump are provided with an air outlet and a pressure sensor. The program control switch is arranged at the air outlet. The control terminal comprises a single-chip microcomputer, a man-machine interaction operation button and a displayer. The radial artery oxyhemoglobin saturation monitoring result can be converted into signals of waveform, oxyhemoglobin saturation value and sound intensity of pulse waves, the single-chip microcomputer determines the pressure exerted on a patient radial artery according to the signals, the inflation pressure in the airbags is fed back and adjusted through the program control air pump and the program control switch, and the blood vessel complications and damage which are caused to a patient when the pressure in the airbags is too high or too low and the pressing time is too long or too short are avoided.

Provide is a wrist type blood pressure meter cuff not oppressing the non-selected artery so as to prevent its pulse waves from mixing into pulse waves of the selected artery necessary for measurement, in a cuff used in a blood pressure meter for measuring blood pressures by selecting and oppressing one artery of the wrist. A wrist type blood pressure meter cuff comprises a fluid bag for oppressing a selected artery of either radial artery or ulnar artery located at the wrist by feeding fluid inside to inflate, and a fixing member for fixing the fluid bag at the wrist. By forming a gap between the fixing member and the wrist, the oppressing pressure directly applied from the fixing member to the wrist at which the non-selected artery is located is set smaller than the oppressing pressure directly applied from the fixing member to other position of the wrist when oppressing the wrist by inflating the fluid bag. This gap is produced by a swollen part provided in the fixing member.

A hemostatic device includes a flexible band configured to be wrapped around a part of an arm to be subjected to hemostasis in which a radial artery and an ulnar artery are disposed, a securing portion that secures the band in a state of being wrapped around the arm, a first inflatable portion connected to the band to press a part to be subjected to hemostasis located in the radial artery by being inflated in response to injection of a fluid, a second inflatable portion disposed at a different position from the position of the first inflatable portion in the longitudinal direction of the band to press the ulnar artery by being inflated in response to injection of a fluid, and an auxiliary balloon disposed between the band and the second inflatable portion such that at least a portion overlaps the second inflatable portion and presses the second inflatable portion.

A sphygmomanometer according to the present disclosure includes a main body that is mounted with a pump and is to be disposed on a dorsal surface of a wrist and a cuff that is to be attached around the wrist. The cuff extends along a circumferential direction of the wrist from an ulnar side end portion of the main body to a palmar surface and is set to a length covering an ulnar artery or a length covering a radial artery beyond the ulnar artery of a wrist having a preset maximum wrist circumference. A fluid is supplied from the pump to the cuff to press the wrist. A blood pressure is calculated based on a pressure of the fluid contained in the cuff.

The invention relates to the technical field of radial artery coronary angiography or interventional postoperative radial artery compression hemostasis, in particular to a double-air-bag radial arterycompressor under monitoring of finger pulse oxygen plethysmography waves and a pressure reduction method of the double-air-bag radial artery compressor. The device comprises a wrist strap and a finger vein oxygen monitor, wherein the wrist strap is provided with a radial artery compression air bag, an ulna artery compression air bag and a micro air pump used for inflating the air bags; and air pressure sensors are installed in the radial artery compression air bag and the ulna artery compression air bag respectively. The pressure reduction method comprises the following steps of: judging whether the radial artery compressor is in an open hemostasis state or not by judging whether the finger pulse oxygen monitor has a curve waveform or not, and decompressing the radial artery compressor onthe basis of the waveform. According to the double-air-bag radial artery compressor under monitoring of the finger pulse oxygen plethysmography waves and the pressure reduction method of the double-air-bag radial artery compressor, the open type hemostasis concept is followed, the compression area is more accurate, the compression strength is more accurate, the pressure reduction time is more accurate, and the occurrence rate of radial artery occlusion and radial artery stenosis is reduced.

Disclosed are methods and devices for obtaining patent hemostasis of the radial artery by compressing the uninstrumented ulnar artery to increase radial artery flow. The device comprises a band having an inflatable bladder for applying blunt pressure to the ulnar artery. The method comprises applying a pressure to the homolateral ulnar artery and applying a pressure to the radial artery at the access site to obtain hemostasis at the access site. The method further comprises administering an anticoagulant to a patient at a dose ranging from about 20 units per kg of body weight to about 30 units per kg of body weight.

Disclosed are methods and devices for obtaining patent hemostasis of the radial artery by compressing the uninstrumented ulnar artery to increase radial artery flow. The device comprises a band having an inflatable bladder for applying blunt pressure to the ulnar artery. The method comprises applying a pressure to the homolateral ulnar artery and applying a pressure to the radial artery at the access site to obtain hemostasis at the access site.

A sphygmomanometer includes: a sensing cuff that includes a second sheet disposed to face the pressing member's inner circumferential surface and a first sheet facing the second sheet; a fluid storage control part providing a control of supplying and storing the pressure-transmitting fluid into sensing cuff in a worn state wherein the pressing member and sensing cuff are worn on the wrist; and a blood-pressure calculating part calculating a blood pressure based on a pressure of the pressure-transmitting fluid stored in the sensing cuff. The fluid storage control part supplies fluid in the worn state such that the first and second sheets are in contact with each other in a region corresponding to an ulna, a region corresponding to a radius, and a region corresponding to a tendon while first and second sheets are separated from each other in regions corresponding to two arteries that are radial and ulnar arteries.

A laser therapeutic instrument with an ulnar artery irradiation function comprises a positioning wrist strap (22), an upper shell (2), a display screen (14), a movement assembly (15), a batter (4) and a bottom shell (10), and is characterized in that the bottom shell (10) is provided with an ulnar artery irradiation group (32) which is provided with a plurality of irradiation heads arranged into list, and the ulnar artery irradiation group (32) is 10-20 millimeters long from the ulnar side of a bottom shell centerline (26) vertical to the centerline of the positioning wrist strap (22). The laser therapeutic instrument is combined with the theory of traditional Chinese medicine, and makes a breakthrough in application and development through irradiation for ulnar arteries. Irradiation treatment is carried out on the ulnar arteries, so special therapeutic effects for diseases in the spirit consciousness aspect are achieved. Combined with irradiation for radial arteries, Neiguans and daling acupoints, rapid treatment for diseases in aspects of heart and cerebral vessels and the like is achieved, and multiplication of curative effects is obtained.

The invention relates to medical equipment, in particular to an ulnar artery compression-free hemostat. The ulnar artery compression-free hemostat is formed by a handle cover, a grab handle, a sawtooth clip, a pull ring, an axle stand, a wheel groove, an eccentric wheel, a rotating shaft, a reed, a binding pipe, a fixing band, a nylon fastener tape, a pressure avoidance ring and a positioning ring. The grab handle and the positioning rod are vertical to each other and are both integrated with the eccentric wheel into one whole body. The eccentric wheel is positioned in the wheel groove. The sawtooth clip is welded on the upper surface of the axle stand, wherein the lateral surface of the sawtooth clip is of an arc shape and sawteeth are arranged inside the sawtooth clip. The circular ring-shaped pull ring is welded on the outer arc surface of the sawtooth clip. The reed is welded on the lower surface of the wheel groove. The middle part of the fixing band on the right of the axle stand is connected with the pressure avoidance ring of which the lateral surface is of a semiring shape. According to the invention, the ulnar artery cannot be compressed; and the ulnar artery compression-free hemostat can be convenient to position when applying different pressures to the radial artery and has a good hemostatic effect.

A hemostatic device is provided to stop bleeding at a puncture site on the wrist of a patient, the device comprising a transparent flexible band to be wrapped at the site where the bleeding is to be stopped, a curved frame having an inner peripheral side and possessing a first curved portion in its first half and a second curved portion in its second half, a first balloon provided on the inner peripheral side in the first half of the curved frame and a second balloon provided on the inner peripheral side in the second half of the curved frame, the first balloon being larger than the second balloon. The bleeding from radial artery is stopped by compressing the radial artery at the puncture site using inflation of the first balloon and radial artery flow is increased by compression of ipsilateral ulnar artery using inflation of the second balloon.