92 results about "Cardiac compression" patented technology

An apparatus and method to be used in CPR to promote diastolic filling of the heart in cardiac arrest situations during external or internal cardiac compression. A rigid backboard provided with a tilting apparatus to incline the backboard to a desired degree. The backboard can be also provided with a tiltable segment for forward head flexion. The body of a patient victim of cardiac arrest is placed supine over the rigid backboard and the backboard is tilted by actuation of the tilting apparatus to a desired angle thus positioning the patient with feet up and chest down, so that the lower extremities are higher than the abdomen and tilted down toward the abdomen, and the abdomen higher than the chest and tilted down toward the chest. Likewise, being the head flexed forward in respect to the remainder of the body, the head is positioned higher than the heart, and tilted down toward the heart. As a result of such a positioning, the blood in the venous system of the lower extremities, of the abdomen and head will be draining down toward the heart by gravity improving diastolic filling and ultimately will improve cardiac output with internal or external cardiac compressions being carried out with the patient maintained in such position.

The present invention provides methods, systems, kits, and devices that aid in the positioning of a direct cardiac compression device about the heart.

The invention provides a closed cardiac compression rhythm prompting device applicable to an automatic in-vitro defibrillator and a method thereof. The device comprises an ARM / DSP controller, a rhythm prompting module and a detection module, wherein a sound generation circuit, a light generation circuit and an image generation circuit in the rhythm prompting module are controlled by the ARM / DSP controller respectively; in the detection module, an excitation pulse generation and drive circuit, an electrocardioelectrode, a preposed difference pre-magnifying circuit, a diode detection and regulation circuit, a filter circuit, gain adjustment and potential transition and an A / D converting circuit are electrically connected in sequence; the A / D converting circuit is electrically connected with the ARM / DSP controller; and the excitation pulse generation and drive circuit and the gain adjustment and potential transition are controlled by the ARM / DSP controller. The device and the method give an operator correct guidance through three prompting modes, namely sound, light and image, and give a specific prompt to incorrect compressing operation by detecting actual compressing rhythm and strength so as to prompt the operator to correct the incorrect operation in time.

One embodiment of a device to augment the pumping function of a weakened heart. A set of connectors with elastic properties are positioned immediately proximate to the outer surface of the heart. Each of the elastic connectors is attached at one end to a circumferential band firmly attached to the exterior surface of the heart at around the level of the atrioventricular groove, an anatomical feature of the heart. At the other end, each of said elastic connectors is attached to a cap attached firmly to the heart exterior of the heart at the anatomical apex. A mechanism places the elastic connectors alternatively under tension (stretch) then shortening (relaxation). When the elastic connectors are stretched they draw the apex and circumferential band together, resulting in external compression of the heart. This movement causes the internal volume of the cardiac ventricles to be reduced, thereby encouraging expulsion of the blood contents of the ventricles to be expelled. This action will be timed so as to augment the natural cardiac contraction, and thereby improve its pumping function.

The present invention provides an implantable cardiac compression device comprising: an inflatable cardiac compression jacket configured when inflated to directly compress a heart and assist in displacing blood therefrom, a channel that connects the inflatable cardiac compression jacket and an expandable fluid reservoir configured to contain a fluid when displaced compresses the inflatable cardiac compression jacket, and a fluid driver operably connected to the inflatable cardiac compression jacket and to the expandable fluid reservoir, wherein the fluid driver is configured to inflate the cardiac compression jacket and to deflate the expandable fluid reservoir during systole of the heart; said driver is further configured to deflate the cardiac compression jacket and to inflate the expandable fluid reservoir during diastole of the heart.

Device (1) for monitoring cardiac compression being applied to a pateitn comprises a body to overlie and contact the sternum, preferably of width no greater than the width of the sternum. The device includes indidication means (9) responsive to the force applied to the body by the user for providing an indication of the cardiac compression applied to the sternum. Also disclosed is a resuscitation mask adapted to be place over the mouth of a patient, the mask includes a nostril closing means adapted to press against the sides of the nose to close the nostrils when the mask is sealed against the face of the patient.

Systems and methods of enhancing cardiopulmonary circulation in a subject during resuscitation are provided. A signal is received responsive to an induced heart compression that is applied to the subject, for example during ventricular fibrillation, an asystolic condition, or cardiac arrest. Responsive to receipt of the signal, a muscle distal subject's heart is electrically stimulated to contract and expel blood into the venous blood flow toward a heart of the subject.

The invention relates to a medical appliance, in particular to a voice prompt manual cardiopulmonary resuscitator used in first aid and rescue of cardiac arrest cases. The major technology adopts manual operation that: a user can hold a handle by hand to press down an adjustable pressing rod at a frequency of 100times / minute; thus, a pressing column is driven to move up and down 4 to 5cm, and a pressing rubber head presses the lower part of a breastbone to move up and down 4 to 5cm in the same way, thereby reaching the goal of cardiac compression; moreover, when moving up and down, the pressing column pulls an air-compressing rack and an air sac cover to move downwards periodically at a frequency of 10times / minute; and a ventilation change-over switch at the upper end of the air-compressing rack can be adjusted to ensure that 300 or 600ml air in an air sac enters the respiratory tract of a patient through a chassis air sac blow vent, an air division check valve, and the like; thus, an inspiratory process of the patient is completed. The voice prompt manual cardiopulmonary resuscitator has the advantages of simple structure, easy manufacturing, low price and no restriction on using condition.

The invention discloses an intensive care device. The intensive care device comprises a supporting box, a heart rate detector is arranged on one side in the supporting box, a conduit is arranged on one side of the heart rate detector, one end of the conduit extends and penetrates through the outer side of the supporting box, a suction cup is arranged at the end, on the outer side of the supporting box, of the conduit, and a heart rate sensor is arranged on one side of the suction cup. The pulse of a patient can be detected through a pulse detection device, and thus detection is more convenient; the heart rate of the patient can be detected through the heart rate detector, and thus detection of the heart rate of the patient is more convenient; a timed respirator can be used in the process of rescuing the patient, and the patient can be rescued when an emergency occurs; first-aid treatment can be conducted on the patient through a cardiac compression device. The intensive care device is simple in structure and easy and convenient to operate, and can monitor the patient, rescue the patient more timely and care the patient more comprehensively.

The present direct cardiac compression (DCC) design, termed Cardiac Resynchronization Compression Sac System (CRCSS), combines together the mechanical and electrical characteristics associated with DCC and cardiac resynchronization therapy (CRT), respectively. The CRCSS comprises a shell, at least one opening on the shell, and at least one inflatable balloon, and a pumping system. The shell is custom manufactured to substantially conform to the contour of a portion of a heart, the contour of the heart being obtained by an imaging system. The opening on the shell is designed for passing pericardial fluid so as not to impede the myocardial contraction. The inflatable balloon attaches to at least one predetermined location of the inner surface of the shell. Furthermore, the shell naturally positions in the pericardium space without resorting to any artificial force to prevent it from dislodging from the heart, and when the inflatable balloon inflates at least one ventricular free wall of the heart is compressed.

The invention discloses a heart failure treatment device for cardiologists. The heart failure treatment device comprises two groups of bases in parallel abreast arrangement, universal wheels are mounted at bottoms of the bases, and electric lifting rods are mounted at tops of the bases. The heart failure treatment device has advantages that by a modeling device for structure modeling of body features of a patient, an operation basis is provided for an injection device and a regulation mechanism, operation precision of the heart failure treatment device is improved, and convenience in treatment of the patient is achieved; by the aid of the injection device for intelligent dosing for the patient, workload of medical workers is relieved, time saving and labor saving are realized, and convenience in working is provided for the medical workers; by the regulation mechanism for adjusting an operating position of a cardiac resuscitation device, simplicity in operation is achieved, and the cardiac resuscitation device is enabled to conveniently and accurately treat the patient; by the cardiac resuscitation device for intelligent cardiac compression, compression conditions are easy to control, and accordingly treatment effects are greatly improved.

The invention discloses an external-chest cardiac compression machine, and relates to the technical field of medical devices. The technical problems that an external-chest cardiac compression machine is complex in operation and low in efficacy in the prior art are solved. The external-chest cardiac compression machine comprises a compression device; the compression device comprises a support body, a compression assembly and adjusting assemblies; a control part is arranged on the support body; the compression assembly is fixed in the middle of the support body and electrically connected with the control part; the adjusting assemblies are fixed to the two ends of the support body and electrically connected with the control part; when the external-chest cardiac compression machine is used, the support body is erected above the chest of a patient, the supporting effect can be provided for the compression device; the control part can control the compression assembly to automatically apply compression operation and supplies electric energy to the adjusting assemblies; the adjusting assemblies can adjust the height and the width of the support body. The external-chest cardiac compression machine is mainly applied to producing and manufacturing of the external-chest cardiac compression machine.

The invention discloses a respirator, which comprises an oxygen therapy system and a breathing mask, wherein the breathing mask is connected with the oxygen therapy system, and can press over a face respiratory organ of a rescue receiver through being driven by a press-down mechanism. During CPR (cardiopulmonary resuscitation), the artificial respiration and the external chest cardiac compression are cooperated; after each external chest compression period is completed, the breathing mask presses over the face of the rescue receiver; oxygen gas is conveyed to the mouth and the nose of the rescue receiver through the breathing mask; the oxygen quantity of oxygen therapy to the rescue receiver is increased; and meanwhile, the workload of a rescuer can be reduced. In addition, the respirator also has the following two functions: 1, the respirator can replace a common-use artificially opened airway; and 2, a chest compression counting mechanism can accurately record the number of thoracic compression times, can report the number after each time of thoracic compression to control the external chest compression frequency, can automatically press down the breathing mask after the completion of each chest compression period, and can automatically extruding a breathing bag twice, so that the cooperation of the chest compression and the oxygen intake is accurate.

The present invention provides devices and methods for monitoring performance of minimally invasive direct cardiac massage. In particular, the present invention provides devices and methods which greatly facilitate proper performance of minimally invasive direct cardiac compression. Devices according to the present invention may comprise a handle, having a proximal end and a distal end, a structure attached to a distal end of the handle adapted to contact the pericardium or other heart surface to compress the heart, and a force transducer coupled to the handle and / or the structure to produce a signal which corresponds to an amount of force applied through the handle to the heart. A signal processor receives the force transducer signal and produces an output corresponding to the applied force. A display receives the output of the signal processor and produces a human decipherable indication based on the applied force.

The invention discloses a simple-operation cardiac pressing device, including a support column, wherein a lifting plate is connected with the support column; a lifting device is arranged on the lifting plate and the support column; two bearing seats are weld on the upper end of the lifting plate; two bearing seats are rotatably connected with a main shaft; a rotating table is welded on the left end of the main shaft; a first cavity is arranged inside the rotating table; and a sliding groove is arranged on the side wall of the first cavity. The advantages are: the operation of the device is simple, Rescuers can press the patient's heart simply by pointing the pressing plate at the patient's chest and shaking the handle, As the device is provide with a speed control box and a friction platepart structure, so that the rotating speed of the main shaft does not exceed 100 times per minute, and the salvage personnel can observe the position of the color block in the observation hole to adjust the shaking speed, so that the salvage personnel without rescue experience can quickly grasp the shaking speed and ensure that the pressing speed of the pressing plate is maintained at 90 to 100 times per minute.

The invention discloses an electric cardio-pulmonary resuscitation pressing device. The electric cardio-pulmonary resuscitation pressing device comprises a resuscitation plate and a headpiece. A quick-plug clamping groove is formed in one end of the resuscitation plate. A control panel, a locking mechanism and a power supply mechanism are arranged on the headpiece. The headpiece can rotate freely by 360 degrees, and the vertical end of the headpiece can further achieve height telescoping by arranging a telescopic stand column. The tail end of the telescopic stand column is further provided with a quick connector matched with the quick-plug clamping groove. A cantilever is arranged at the horizontal end of the headpiece. An adjusting knob and an indicator light are arranged on the cantilever. The cantilever can rotate within the range of 0-120 degrees through the adjusting knob. A pressing head is further arranged at the tail end of the cantilever. The pressing head is connected with a driving mechanism connected with the power supply mechanism. Compared with the prior art, the electric cardio-pulmonary resuscitation pressing device is simple in structure and reasonable in design, cardiac compression can be performed on patients at any time and any where, the patients can be effectively pressed to the maximum degree, and a guarantee is brought to first-acid patients.

The invention relates to an improved portable pneumatic cardiopulmonary resuscitator which is a medical apparatus only using high-pressure oxygen or air as a power source and working medium and can apply cardiopulmonary resuscitation to a patient with cardiac and respiratory arrest. The improved portable pneumatic cardiopulmonary resuscitator comprises a novel vertical and horizontal folded plate-shaped base, a vertical column with a locking device, a cardiac compression device, a breathing device and a control device, wherein the cardiac compression device mainly adopts an air cylinder; the breathing device comprises a breathing interface with an air oxygen mixer and an air passage automatic reducing valve, and a breathing mask; and the control device comprises several mechanical valves and delay resetting valves and a power divider. Because air valves installed on the improved portable pneumatic cardiopulmonary resuscitator adopt plate type connection, space can be saved; and the plate-shaped base which can be folded is also adopted, therefore, the improved portable pneumatic cardiopulmonary resuscitator can be used at both sides of a patient and is convenient for future carrying and storage.

The invention discloses a cardiac compression device for thoracic surgery first aid. The device is used for realizing the first aid of cardiopulmonary resuscitation for cardiac arrest patients. The device includes a pressing unit and a supporting unit; the pressing unit includes an inner shell and an outer shell which are in internal and external arrangement and threaded connection, a pressure barslidingly arranged in the inner shell, push-out springs arranged between the pressure bar and the inner shell, a press block arranged under the pressure bar, a pressing spring arranged between the pressure bar and the press block, a cam rotatably installed in the inner shell, and a motor for driving the cam; the cam can keep contacting with the upper end of the pressure bar under the action of the push-out springs; the supporting unit includes a horizontal stretching mechanism, a vertical stretching mechanism and locking mechanisms; the first end of the horizontal stretching mechanism is fixedly connected to the outer shell; the vertical stretching mechanism is fixedly connected to the second end of the horizontal stretching mechanism; the horizontal and vertical stretching mechanisms areprovided with the locking mechanisms. The device can conveniently realize the cardiac compression first aid on patients.

A method and related apparatus for the minimally invasive implantation about a heart of at least a deployable device such as a heart assist device or cardiac compression device. The method comprises the steps of performing a left thoracotomy or subxiphoid incision; obtaining access to the pericardial sac; making a generally linear incision in the pericardial sac; positioning an assembly having an insertion aperture member with an upper ring and a lower ring or flange and insertion tube having therein a deployable device. The apparatus of the present invention includes an insertion aperture member having an upper ring and a lower ring or flange; and an insertion tube having therein a deployable device adapted to be deployed from the insertion tube inside the pericardial sac via a generally linear incision.

The present invention provides a combined direct cardiac compression and aortic counterpulsation device comprising: an inflatable direct cardiac compression jacket configured when inflated to directly compress a heart and assist in displacing blood therefrom, an aortic counterpulsation chamber configured when inflated to displace aortic volume for the purposes of causing a counterpulsation effect, and a driver operably connected to said inflatable direct cardiac compression jacket and to said aortic counterpulsation chamber, said driver is configured to inflate said direct cardiac compression jacket and to deflate said aortic counterpulsation chamber during systole of the heart; said driver is further configured to deflate said direct cardiac compression jacket and to inflate said aortic counterpulsation chamber during diastole of the heart.

The invention provides a full-chest strip-shaped automatic cardiac compressioninstrument mechatronic system which comprises a mechanical system and an electronic system. A driving device of the mechanical system is connected with a transmitting device through a decelerating and clutch device,wherein the transmitting device is connected with a pressing device, the pressing device is arranged towards a pressure bearing device, and the driving device can drive the pressing device to be far from or close to the pressure bearing device sequentially through the decelerating and clutch device and the transmitting device. A; a master control module of the electronic system is in signal connection with the driving device through a driving module, so that the master control module can control the driving device to actuate through the driving module. Preferably, the electronic system further comprises a monitoring device, a communicating module, a man-machine interacting device, and a power module andthe like. The full-chest strip-shaped automatic cardiac compressioninstrument mechatronic system can provide high-quality closed cardiac compression for a target compressed object, reduces or even avoids extra damage to the compressed object, can continuously keep a pressing effect and further is ingenious in design, simple in structure, convenient to operate and suitable for large-scale popularization and application.

Systems and methods of enhancing cardiopulmonary circulation in a subject during resuscitation are provided. A signal is received responsive to an induced heart compression that is applied to the subject, for example during ventricular fibrillation, an asystolic condition, or cardiac arrest. Responsive to receipt of the signal, a muscle distal subject's heart is electrically stimulated to contract and expel blood into the venous blood flow toward a heart of the subject.

A cardiac compressor is used for realizing the first aid to a cardiac arrest patient. The compressor comprises a base, an upright rod fixed on the base, a bracket arranged on the upright rod, a firstpressing block arranged below the bracket and a pressing driving mechanism for driving the first pressing block to move up and down, wherein the bracket and the upright rod are slidably connected up and down and a lifting mechanism is arranged between the bracket and the upright rod; A movable box is slidably mounted on the bracket in the left-right direction and a lateral moving mechanism is arranged between the movable box and the bracket, A pressure bar is slidably mounted in the vertical direction in the movable box and a pressing driving mechanism is arranged between the pressure bar andthe movable box, An extension bar is fixed on the lower end of the pressing bar, a first pressing block is arranged below the extending bar and a compression spring is arranged between the first pressing block and the lower end of the pressing bar, a second pressing block is detachably installed on the outer side of the first pressing block, the first pressing block and the second pressing block are arranged inside and outside, and silica gel is wrapped outside the first pressing block and the second pressing block. The presser can effectively realize the first aid of cardiac compression to the patient.

The invention relates to the technical field of cardiac compression, and discloses an intracardiac department first-aid cardiac compression device which comprises a C-shaped clamp, a supporting pipe, a supporting beam, a motor box and a compression plate. A limiting pin A transversely penetrates through the top of the side wall of the supporting pipe in a sliding mode, a telescopic supporting rod is vertically inserted into an inner cavity of the supporting pipe in a sliding mode, a limiting hole A is transversely formed in the side wall of the telescopic supporting rod, the C-shaped clamp is fixedly installed at the bottom of the supporting pipe, and a threaded rod vertically penetrates through the bottom of the C-shaped clamp in a rotating mode and is in threaded connection with the C-shaped clamp. A limiting pin C is pulled to be pulled out of an inner cavity of a limiting hole B, then a limiting sliding sleeve B is moved, and the limiting sliding sleeve B drives the telescopic supporting rod to move, so that the distance between two sets of C-shaped clamps is changed, and compared with an existing cardiac compression device for cardiac department first aid, the intracardiac department first-aid cardiac compression devicecan be clamped on sickbeds of various widths; and the practicability of the device is effectively improved.

The invention discloses a first-aid cardiac compression device with uniform compression force for the cardiology department. The cardiac compression device comprises a flat plate and a compression block, wherein sliding blocks are slidably connected to the two sides of the top of the flat plate; lifting hydraulic cylinders are fixedly connected to the tops of the two sliding blocks; a U-shaped seat is fixedly connected between the top ends of the two lifting hydraulic cylinders; a sliding seat is slidably connected to the bottom of the inner wall of the U-shaped seat; a box body is fixedly connected to the bottom of the sliding seat; a fixing plate is fixedly connected between the top and the bottom of the inner wall of the box body; and a concentric-square-shaped frame is slidably connected to the front face of the fixing plate. The invention relates to the technical field of medical equipment. According to the first-aid cardiac compression device with the uniform compression force for the cardiology department, through cooperation of an adjustable-speed motor, a driving shaft, a missing gear and driving teeth, the concentric-square-shaped frame can be driven to reciprocate up anddown, the stable frequency can be kept to drive the compression block to conduct compression work, an operator does not need to conduct manual compression, uniform compression can be achieved, and the compression frequency can be freely adjusted, so that the compression effect is good.

The invention discloses a cardio-pulmonary resuscitation system combining breathing with precise compression. The cardio-pulmonary resuscitation system combining breathing with precise compression is characterized in that the system comprises a microcontroller, a cardiac compression device and a breathing device, wherein the cardiac compression device and the breathing device are both connected with the microcontroller, the cardiac compression device comprises an air cylinder, a piston located in the air cylinder and a compression plate connected with the piston, and the breathing device comprises an oxygen mask and an oxygen supplying device. Due to the fact that compression and breathing are carried out coordinately and synchronously, the cardio-pulmonary resuscitation rate is improved greatly; the service life of the cardiac compression device is prolonged greatly by the adoption of wear-resistant sealing materials; due to the fact that the flexible materials of the compression plate achieve good balance between rigidity and flexibility, needed compression strength can be guaranteed, and compression damages such as bone fractures can be avoided.

The invention discloses a medical first-aid cardiac compression manipulator which comprises a base. A worktable is arranged on the base and movably connected with a rotating part, a plurality of supporting frames are arranged at the upper end of the worktable, a support is arranged on one side of the supporting frames, a driver is arranged on the support, a plurality of upper limbs are arranged onthe supporting frames, one end, far away from the supporting frames, of each upper limb is connected with a connecting arm, the upper end of each connecting arm is movably connected with the corresponding upper limb, a positioning table is arranged at the other end of each connecting arm, and a compression plate is arranged at the lower end of the positioning table and movably connected with thepositioning table through a connecting rod. The medical first-aid cardiac compression manipulator has the advantages that objects with different physiques are scanned, the downward pressure and the compression frequency of the compression plate are adjusted according to an adjuster and a sensor on a system, manual operation is decreased, manual compression on experimental objects is omitted in operation of the system, medical workers are reasonably distributed, and the manipulator is high in rescue efficiency and simple to operate.