147 results about "Pericardium" patented technology

The invention provides a four-dimensional cardiac function imaging method and device based on a biological magnetic signal. The method comprises the following steps: acquiring a magnetocardiogram signal of a to-be-detected object and dynamic structure information of a target trunk part in a full cardiac cycle; wherein the target trunk part at least comprises double lungs, a trunk, a heart cavity of the trunk and a pericardium structure, and the dynamic structure information comprises a contour structure and a multi-frame dynamic image; performing spatial registration on the dynamic structure information and the sensor for acquiring the magnetocardiogram signal to obtain coordinates of the sensor in a coordinate system of the dynamic structure information; according to the dynamic structure information, the coordinate of the sensor and the magnetocardiogram signal, calculating and reconstructing cardiac electrical excitation activity to obtain a calculation and reconstruction result; and converting the calculation reconstruction result into a four-dimensional visual image. According to the method, heart magnetic imaging and heart movement are combined, on the basis of obtained dynamic structure information and heart magnetic signals, the characteristics of biological magnetic signals are fully utilized, and the signal processing technology is integrated through space registration, so that accurate reconstruction of four-dimensional representation of the heart and visual display of functional activities are realized; therefore, the obtained four-dimensional visual image can completely represent the dynamic electrophysiological activities of the whole heart (including epicardium, endocardium and intrawall tissues) in a cardiac cycle, and a technical scheme with different concepts is provided for non-invasive imaging of cardiac electrical excitation activities.

The percutaneous pericardium puncture assembly comprises a puncture tube and a puncture piece, and the puncture tube comprises a tube body and a puncture section arranged at the far end of the tube body. A puncture channel, a negative pressure suction channel and an imaging channel are formed in the tube body and communicated with a working opening in the far end of the puncture section. The imaging module is arranged in the imaging channel in a penetrating mode, and real-time visualization of in-vivo puncture operation is achieved. The near end of the negative pressure suction channel can be in butt joint with a negative pressure suction device to provide negative pressure for the working port so as to adsorb the pericardium wall layer; the puncture piece penetrates through the puncture channel and can puncture the adsorbed pericardium wall layer. According to the embodiment, the vacuum suction channel is formed, the pericardium wall layer can be captured before puncture of the puncture piece, in this way, even if only a small amount of pericardial effusion exists between the pericardium wall layer and the pericardium dirty layer, medical staff can easily complete puncture of the pericardium wall layer under the condition that the pericardium dirty layer is not damaged, and the puncture efficiency of the pericardium wall layer is improved. The operation is simple, and the safety and the success rate of percutaneous pericardium paracentesis under full indications are greatly improved.

The invention belongs to the technical field of medical puncture equipment, and particularly relates to a cardiology department clinical puncture device which comprises a supporting plate and further comprises an automatic puncture mechanism, a hanging and placing mechanism, a positioning and locking mechanism, a puncture resistance real-time monitoring and feedback mechanism, a hydrops extraction power supply mechanism and a PLC control panel. A stable positioning position can be provided according to the puncture requirement, the smoothness in the puncture process is ensured, the puncture angle can be rapidly adjusted according to the requirement, the puncture speed can be automatically adjusted based on different resistances in the puncture process, the larger the puncture resistance is, the slower the puncture speed is, the effusion extraction efficiency is effectively improved, and the puncture cost is reduced. More medical labor is released, continuous and stable operation of pericardial effusion extraction work is ensured, time for puncture effusion extraction is shortened, and the problem that pain and infection risk of a patient are increased due to overlong-time operation is solved.

A system and method for the installation and operation of a cardiac assist device. Flexible guides are advanced into a prepared space using minimally invasive techniques. A heart pump construct is advanced into position in the pericardial area along the flexible guides. Once in position, the heart pump construct is activated while still engaged with the flexible guides. The flexible guides provide structural integrity to the heart pump construct needed in order for the heart pump construct to function properly. The forces supplied to the heart by the heart pump construct are affected by the presence of the flexible guides. The structure of the flexible guides, the position of the flexible guides and the structure of the heart pump construct are customized to supply the forces needed by a particular heart in order to assist the heart in pumping more efficiently.

The invention discloses a pericardiocentesis positioning device for the cardiology department and a using method of the pericardiocentesis positioning device, and relates to the technical field of cardiology department medical instruments. Comprising an adsorption plate, a sliding frame and a positioning pipe, a fixed base and an adjusting disc are fixedly arranged at the top of the adsorption plate, and a fixed shaft is fixedly arranged between the inner walls of the fixed base. The limiting plate is pulled outwards to be separated from the surface of the adjusting disc, the supporting base is rotated immediately, and due to the fact that the fixing plate is fixed to the outer wall of the side, close to the adjusting disc, of the supporting base, the fixing plate can synchronously rotate in the first adjusting groove along with the supporting base; an operator can accurately adjust the supporting base to a required angle by observing a first scale mark on the outer wall of the side, away from the supporting base, of the adjusting disc, after the supporting base is adjusted to a proper angle, the limiting plate is loosened, the limiting plate is reset under the elastic effect of the compression spring to be attached to the surface of the adjusting disc again, and the stability of the supporting base is guaranteed; therefore, physical conditions of different patients and specific requirements of pericardiocentesis can be met.

The invention discloses a pericardium adipose tissue segmentation method, device and equipment based on an MR image and a medium. The method comprises the following steps: acquiring a target heart magnetic resonance image containing pericardium adipose tissue of a target object; segmenting pericardium adipose tissue in the target heart magnetic resonance image based on a tissue segmentation model to obtain target pericardium adipose tissue of the target object; the tissue segmentation model comprises a three-branch cross-domain feature collaborative encoder, a double attention feature fusion module and a dynamic boundary perception decoder, and the three-branch cross-domain feature collaborative encoder performs feature extraction from global, local and frequency domains based on a three-branch structure; the double attention feature fusion module is established based on a space attention mechanism and a parallel channel attention mechanism, and the dynamic boundary perception decoder is used for enhancing the global and boundary perception capability. According to the scheme, the pericardium adipose tissue in the heart MR image can be accurately and efficiently segmented by using the tissue segmentation model based on multi-feature collaboration.

Provided in the present application are a biomagnetic signal-based four-dimensional cardiac function imaging method and device. The method comprises: acquiring a cardiac magnetic signal of a subject to be tested and dynamic structure information of a target torso part within a full cardiac cycle, wherein the target torso part at least comprises two lungs, a torso, and a heart chamber and a pericardium structure thereof, and the dynamic structure information comprises a contour structure and a plurality of frames of dynamic images; performing spatial registration on the dynamic structure information and a sensor acquiring the cardiac magnetic signal to obtain coordinates of the sensor in a coordinate system of the dynamic structure information; calculating and reconstructing a cardiac electrical excitation activity based on the dynamic structure information, the coordinates of the sensor, and the cardiac magnetic signal to obtain a calculation and reconstruction result; and converting the calculation and reconstruction result into a four-dimensional visualization image.

The invention discloses a preparation method of a drug-loaded glycoprotein-like network hybridization tissue engineering valve material, which comprises the following steps: carrying out a one-pot hybridization cross-linking reaction on a decellularized biological material, oxidized hyaluronic acid, phenylboronic acid grafted silk fibroin and curcumin to construct and form a drug-loaded glycoprotein-like network on the biological material; the biological material is animal tissue, including but not limited to any one of pericardium, valve, intestinal membrane, meninx and the like. The method comprises the following steps: soaking a decellularized biological material in a solution A containing OHA, SF-PBA and curcumin, and continuously oscillating for 48 hours to carry out a cross-linking reaction; and then washing with phosphate buffer saline water and distilled water to obtain the drug-loaded glycoprotein-like network hybrid tissue engineering valve material. The prepared tissue engineering valve material overcomes the defects that traditional decellularized valve and glutaraldehyde cross-linked valve materials are easy to calcify, have toxicity and are poor in immunogenicity.

The invention discloses an implantable acellular matrix material and a preparation method thereof, and belongs to the field of biomedical materials. According to the method, natural animal tissues (such as pericardium, achilles tendon or small intestine submucosa) are used as raw materials, a low-temperature chemical combined decellularization treatment technology is adopted, and the method comprises the multi-step synergistic process of pre-cooling soaking balancing, low-temperature enzymolysis, low-concentration surfactant gradient permeation cleaning, low-temperature nuclease degradation, non-crosslinking sterilization and the like. Under the condition that the treatment temperature is strictly kept at 0-8 DEG C, cell components and genetic materials (the residual DNA content is 1t, and the dry weight is 8 ng / mg) are efficiently removed, and meanwhile the natural three-dimensional fine structure of an extracellular matrix (ECM), the integrity of collagen fibrils and key bioactive components (such as glycosaminoglycans (GAGs)) are reserved to the maximum extent. The host immunological rejection reaction of the obtained material is remarkably reduced, host cell ingrowth, vascularization and tissue function reconstruction can be effectively promoted after implantation, and the material is suitable for high-end implantation scenes such as soft tissue repair and regenerative medical stents.

The utility model relates to a cardiovascular internal medicine technical field especially, it is a pericardial drainage patient fixing device, including wearing bandage mechanism, it includes first elastic bandage main part and second elastic bandage main part, the inner wall of first elastic bandage main part and second elastic bandage main part all is equipped with the protection layer, positioning fixed establishment, it includes the positioning frame, the sidewall of positioning frame both ends is fixedly connected with first elastic bandage main part and second elastic bandage main part one end respectively, the inside of positioning frame is equipped with first through -hole, and the inside of first through -hole is provided with pericardial drainage tube main part. The utility model first through pulling the push board to drive the connecting rod inside the second through -hole sliding and pulling the positioning plate extrusion first spring main part and second spring main part deformation, to make the positioning plate and rubber pad through first spring main part and second spring main part elastic recovery to reciprocating sliding, thereby being convenient for the positioning fixed of pericardial drainage tube main part.

To provide suitable devices, systems, and methods for percutaneous pneumatic cardiac support. [Solution] The cardiac support system includes a pneumatic effector implanted beneath the pericardium and across the myocardial surface covering the patient's left ventricle. A port receives an implanted, percutaneously introduced cannula. The port is connected to supply the drive gas received from the cannula to the pneumatic effector. An external drive unit includes a pump assembly and a control circuit that operates the pump to activate the pneumatic effector in response to the patient's sensed cardiac rhythm. A connecting tube has a pump end connected to the pump and a percutaneous port connection end attached to the implantable port.

This invention discloses a pericardial effusion puncture and drainage device with angle adjustment, including an installation mechanism, a support mechanism in the middle of the installation mechanism, and an isolation mechanism at the top of the installation mechanism. A puncture mechanism is located in the middle of the support mechanism, and clamping assemblies are fixed at both ends on one side of the support mechanism. A tube guide mechanism is located on one side of the puncture mechanism. This invention utilizes the cooperation between the support mechanism and the puncture mechanism on the installation mechanism. A first worm gear in a first adjustment box drives a first worm wheel, and a second worm gear drives a second worm wheel, which in turn drives a large gear via a small gear. During puncture, the doctor can flexibly adjust the puncture position and finely adjust the puncture angle according to the patient's condition, avoiding prolonged holding of the puncture device, freeing the doctor's hands, ensuring a stable puncture process, making the operation more convenient for the doctor, and improving work efficiency.

The present application relates to a kind of dry-wet dual-purpose pericardial puncture device, including shell, multicavity tube, puncture needle, puncture guide wire, multicavity tube is arranged on shell;Puncture needle is slidably arranged in one of the cavities of multicavity tube;Puncture guide wire is slidably arranged in other cavities of multicavity tube.The present application combines puncture needle and puncture guide wire by multicavity tube, is designed into integrated structure, is suitable for dry and wet pericardial puncture, and can be operated only by different use modes.And the structure of the present application is simple, and the difficulty of operation is low, and doctor can simply and conveniently puncture, and too much experience can also be completed surgery, and the risk coefficient of puncture method and process is lower, and it is convenient for more hospitals and doctors to use.

This document relates to devices and methods for the treatment of heart conditions. For example, this document provides devices and methods for treating heart failure with preserved ejection fraction, including diastolic heart failure, by performing a pericardial modification procedure.

The application belongs to the technical field of medical equipment, and particularly relates to a pericardium puncture liquid extraction device for a cardiology department, which comprises a mounting frame, the inside of the mounting frame is provided with an adjusting part, the inside of the adjusting part is provided with a puncture part, the inside of the adjusting part is further provided with an extraction part, the adjusting part can drive the puncture part and the extraction part inside to rotate in a horizontal direction and to adjust an angle in a vertical direction, the puncture part is inserted into a target position by extension, and the extraction part extracts target liquid after the puncture part punctures into the target position. The application realizes multidimensional control through an adjusting part motor + pneumatic, improves puncture precision through double orientation, guarantees safety through active locking + passive unlocking, quickly evacuates in an emergency, optimizes space through modular integration, and simplifies maintenance through quick assembly and disassembly.

The present invention provides a method and / or device for applying an ideal amount of tenting force to the pericardial layer 911. [Solution] The elongated guidewire assembly 200 has a distal segment 205 configured to be selectively operated along the elongated introducer assembly 102. The distal segment is configured to selectively transmit a tenting force 700 from the elongated guidewire assembly to the first biological wall 910 after the distal segment has selectively extended away from the distal introducer assembly, with the distal segment at least partially in contact with the first biological wall 910.

Systems (100), computer-readable media, and methods for detecting a first indicator of a pericardium-related issue based, at least in part, on first heart sounds measurements; detecting a second indicator of the pericardium-related issue based, at least in part, on one or more of the following: posture, restlessness, respiratory activity, cardiac activation signals, oxygen saturation, and second heart sounds measurements; and generating an alert in response to detecting the first indicator and the second indicator.

The utility model provides a pericardiocentesis effusion extraction device, and relates to the technical field of medical auxiliary instruments. A traction pump is arranged above the collecting barrel, an insertion pipe is fixedly connected to the rear end of the traction pump, the rear end of the insertion pipe is fixedly connected with the interior of the front end of the leading-in pipe in an inserted mode, and a triangular frame A is fixedly installed in the insertion pipe. After the intubation tube is separated from the introduction tube, the spring piece A and the spring piece B are both elastically reset, the limiting plug A and the limiting plug B are attached to the rear end of the interior of the intubation tube and the front end of the interior of the introduction tube respectively, and effusion is prevented from flowing out. The problems that when an existing effusion extraction container is used for extracting effusion, after the extracted effusion container contains proper quantitative effusion, the extracted effusion container needs to be replaced with other containers, the effusion is prone to being poured and scattered in the replacement process, and secondary injury is prone to being caused to a patient when a pipeline in the body of the patient is removed are solved.

The present application relates to the technical field of medical apparatus and instruments, in particular to a pericardium thoracic cavity puncture and effusion drainage device, which comprises a needle tube, elastic strips, a cone and a deformation assembly, one end of the needle tube extends into the patient's body, the elastic strips are provided in plurality, the plurality of elastic strips are distributed at intervals around the axis of the needle tube, one end of each elastic strip is fixedly connected to the end of the needle tube in the patient's body, each elastic strip extends in the axial direction of the needle tube, the large end of the cone is fixedly connected to the end of each elastic strip away from the needle tube, and the middle part of each elastic strip can bend in the radial direction of the needle tube away from the axis of the needle tube; the deformation assembly is used for controlling the cone to move towards or away from the needle tube in the axial direction of the needle tube. Through the cooperation of the deformation assembly, the cone and the plurality of elastic strips, when the cone moves towards the needle tube, the middle part of the plurality of elastic strips bends in the radial direction of the needle tube away from the axis of the needle tube, and when the effusion is extracted, the needle tube is not easy to be blocked, and the liquid extraction process is more smooth.

The present invention relates to devices and methods for separating tissue to create an anatomical access space in vivo, particularly for providing access to the space between the pericardium and the epicardium.

In some examples, a tool for, e.g., creating a sub-sternal tunnel in a patient or other use, is described. The tool may include a handle and a tunneling shaft coupled to the handle. The tunneling shaft extends from a proximal end to a distal end, and at least a portion of the tunneling shaft extends in a curved orientation between the first end to the distal end. The distal end of the tunneling shaft includes a cutting tool having a sharp edge. The cutting tool is moveable from a recessed position in which the sharp edge of the cutting tool is recessed into the distal end of the tunneling shaft to a deployed position in which the sharp edge of the cutting tool extends beyond the distal end of the tunneling shaft in the deployed position, e.g., to cut pericardium, scar tissue, and / or connective tissue with the sharp edge.

The invention discloses an image segmentation method, device and equipment for pericardium adipose tissue and a medium. The method comprises the following steps: acquiring a heart magnetic resonance image of a target object, wherein the heart magnetic resonance image comprises pericardium adipose tissue; segmenting the pericardium adipose tissue in the heart magnetic resonance image by using a pre-trained tissue segmentation model to obtain a target pericardium adipose tissue of the target object; the tissue segmentation model comprises an encoder, a decoder and a space channel attention module, the encoder comprises a double-branch cooperation module, the decoder comprises a multilayer fusion convolution module, the double-branch cooperation module is used for feature extraction based on a double-branch network, and the space channel attention module is used for feature enhancement in space and channel dimensions. And the multi-layer fusion convolution module is used for feature fusion based on grouped convolution. According to the scheme, semantic information and structural features in the image can be fully mined by using the tissue segmentation model, the segmentation performance in a complex scene is improved, and the pericardium adipose tissue is efficiently and accurately segmented.

The invention discloses a pericardium thoracocentesis effusion drainage device and method, and relates to the field of medical care, the pericardium thoracocentesis effusion drainage device comprises a liquid storage device, a liquid storage cavity is formed in the liquid storage device, a positioning frame is fixedly mounted at the top of the liquid storage device, a fixing pipe is fixedly inserted in the positioning frame, the bottom end of the fixing pipe extends into the liquid storage cavity, and the top of the fixing pipe is fixedly sleeved with a mounting cylinder; a threaded opening is formed in an inner ring of the mounting cylinder, a drainage tube is inserted into the inner ring of the mounting cylinder, external threads are arranged at one end of the drainage tube, the drainage tube is inserted into the threaded opening in a threaded mode, a sponge block is fixedly mounted in the liquid storage cavity, a flow guide plate is obliquely arranged in the liquid storage cavity, a fixing plate is fixedly arranged in the liquid storage cavity, and a drainage opening is formed in the fixing plate; according to the pericardium and thoracocentesis effusion drainage device, people do not need to frequently put on and take off the device, drainage can be conveniently conducted no matter a patient walks or lies flat, great convenience is brought to the patient, the effusion amount of word drainage of the patient can be automatically controlled, and safety is improved.

A method for performing a robotic-assisted orthotopic heart transplant includes forming a working port subareolarly by a mini-thoracotomy at a working intercostal space, forming additional ports for robotic arms, and arranging robotic arms through the ports. A first robotic arm with first forceps extends through a second port lateral to a mid-clavicular line, while second and third robotic arms containing an imaging device and second forceps operate through the working port. A fourth robotic arm with scissors or needle holder extends through a third port proximal to an anterior axillary line. The method includes cannulating for cardiopulmonary bypass, opening the pericardium, cross-clamping the aorta, removing the native heart, and performing sequential anastomoses of the donor heart including the left atrium, pulmonary artery, aorta, inferior vena cava, and superior vena cava.

The invention relates to a method for reducing biological heart valve prosthesis calcification by adopting a titanium-containing coating in combination with ultraviolet irradiation. The invention relates to a method for treating a biological heart valve prosthesis with a titanium-containing coating, in particular a glutaraldehyde-immobilized pericardium, comprising the following steps: a) treating a biological heart valve prosthesis with a titanium-containing coating; and b) irradiating the treated biological heart valve prosthesis with light having a wavelength of 100 to 450 nm. In this way, the biological heart valve prosthesis with the uniform surface can be manufactured through the hypothesized polymer, and therefore the biological heart valve prosthesis with the uniform surface can be manufactured through the hypothesized polymer. Calcification of such a TAVI valve is significantly reduced, the life of the TAVI valve is increased, which increases the time interval at which such a TAVI valve must be replaced over the years.

The application discloses a preparation method of an antibacterial biological patch for cardiac surgery, and comprises the following steps: first, preparing a Fib@CMC@ABX mixed solution; second, preparing a cross-linking solution, pouring the cross-linking solution on the surface of the biological patch, and sealing and storing the cross-linking solution at 4 DEG C after cross-linking reaction; third, placing; and fourth, soaking in a glycerol solution. The antibacterial coating of the antibacterial biological patch for cardiac surgery prepared by the preparation method is not easy to fall off or crack, the antibacterial coating is firmly attached to the biological patch, the continuity of the antibacterial coating is good, the antibacterial coating has long-acting antibacterial effect, can effectively inhibit bacterial growth, and can prevent postoperative infection, and is suitable for cardiac surgery scenes such as heart repair and pericardial reconstruction.

The invention belongs to the technical field of drainage devices, and discloses a pericardial effusion drainage device which comprises an extracorporeal membrane lung oxygenation therapeutic apparatus and a fixing device. The extracorporeal membrane lung oxygenation therapeutic apparatus comprises a main control table, an artificial membrane lung, a centrifugal pump and an oxygenator, an inlet and an outlet of the centrifugal pump are connected with a first catheter and a second catheter respectively, the first catheter is connected with veins of a patient, the free end of the second catheter is connected with the artificial membrane lung, the artificial membrane lung is connected with a third catheter, and the third catheter is connected with the oxygenator. The free end of the third catheter is connected with the artery or vein of the patient; a branch tube of the first catheter is connected with a hydrops catheter, the free end of the hydrops catheter is connected with a drainage tube, and the diameter of the hydrops catheter is smaller than that of the drainage tube. The technical problems that according to an existing drainage mode, effusion cannot be continuously drained, the drainage efficiency is low, the postoperative anemia risk can be increased for a patient with blood loss due to an operation, and the recovery cycle of the patient is prolonged are solved.

The invention relates to the technical field of left auricle plugging, and discloses a left auricle plugging device which comprises a delivery sheath and a composite sheath, and one end of the composite sheath penetrates through the delivery sheath and extends to the outside of the delivery sheath; an inflation pipeline, a gel injection pipeline and a blood pump-back pipeline are respectively arranged in the composite sheath. According to the left auricle plugging device, the delivery sheath, the composite sheath, the inflation pipeline, the gel injection pipeline, the blood pumpback pipeline and the plugging air bag are arranged, the plugging air bag temporarily seals a left auricle opening, the blood pumpback pipeline pumps out blood in a left auricle, plugging gel is circularly injected into a left auricle cavity through the gel injection pipeline, and the left auricle cavity is sealed. According to the left auricle plugging device, blood in a left auricle is replaced with plugging gel, then the plugging gel is jellied to completely and stably plug the left auricle, left auricle plugging is achieved, the left auricle plugging device can be suitable for left auricles of different forms, sizes and angles, and the risks of left auricle damage and pericardium filling caused by possible repeated recovery and release in the surgical operation process of a traditional plugging device are avoided.

The utility model discloses a pericardium patch measuring device which comprises a handle, a handle sliding block and a range finder, a graduated scale extending from the head of the handle to the tail of the handle is arranged on the handle, the handle sliding block and the range finder are arranged on the handle in a sleeved mode, the handle sliding block is connected with the range finder, and the handle sliding block and the range finder can move in the extending direction of the handle. The handle sliding block moves back and forth on the handle so that the range finder can be driven to be unfolded or folded. According to the pericardial patch measuring device, the distance measuring device is driven to be unfolded or folded through the front-back movement of the handle sliding block on the handle, and therefore the size of a pericardial patch is measured through unfolding or folding of the distance measuring device. According to the utility model, accurate measurement of the size of the pericardium patch can be realized by adjusting the handle sliding block, one-hand operation, real-time reading and multi-time measurement can be realized without replacing instruments, mismatching of the size of the patch is not easily caused, the operation time can be obviously shortened, and the operation success rate is obviously improved.