76 results about "Cardiothoracic surgery" patented technology

When closing the sternum in cardiothoracic surgery, elderly people with a fragile sternum can experience bleeding from the suture sites because of loose knots. The knots are loose because of the danger of cutting into the sternum from the tension caused by the suture wire. In extreme cases, the sternum can be fractured. If the closure is attempted intercostally, there are internal thoracic arteries that run longitudinally underneath the sternum and they may be hurt if a sharp needle is used. Intercostal fixation on its own is inadequate, and additional wires that directly insert into the manubrium are required. Of the sternal closure wires currently available, there is discordance in the numbers provided and actually used, resulting in leftovers that need unnecessary sterilization and reuse. To solve the above problems, an intercostal specific blunt needle has been devised, and packaged together with a sharp needle that will directly insert into the sternum. The set may contain one of each needle or a required combination of both, and come in a pre-sterilized pack. The needle is blunt at the cutting edge, and has a hook, or a side hole. The opposite end has a handle attached. The needle is configured so the wire can be hooked on, or threaded through the hook and hole respectively, and the operative procedure involves lifting up the wires.

Methods are described for preventing or reducing ischemia and / or systemic inflammatory response in a patient such as perioperative blood loss and / or systemic inflammatory response in a patient subjected to cardiothoracic surgery, e.g., coronary artery bypass grafting and other surgical procedures, especially when such procedures involve extra-corporeal circulation, such as cardiopulmonary bypass.

Methods are described for preventing or reducing ischemia and / or systemic inflammatory response in a patient such as perioperative blood loss and / or systemic inflammatory response in a patient subjected to cardiothoracic surgery, e.g. coronary artery bypass grafting and other surgical procedures, especially when such procedures involve extra-corporeal circulation, such as cardiopulmonary bypass.

A polymeric matrix for delivery of an HMG CoA reductase inhibitor such as a statin to tissue such as cardiac tissue in need thereof for the treatment or prevention of a disease or defect such as atrial fibrillation has been developed. In the preferred embodiment, a statin is delivered by means of a patch sutured to cardiac tissue at the time of cardiothoracic surgery. In the most preferred embodiment, the patch is a biodegradable material providing controlled or sustained release over a prolonged period of time, such as a week. Suitable materials include extracellular matrix, or other biodegradable hydrogels or polymeric materials providing sustained or controlled release of statin at the site of application.

A breast-supportive and breast-positioning brassiere designed to be used postoperatively by patients including obese patients and fuller-sized women who have undergone cardiothoracic surgery that requires a mid-sternal incision (sternotomy). The brassiere is also for other interventions in the thoracic region, when a comfortable and efficient individual positioning and support of the breast(s) would be desirable; an example being to prevent symmastia after breast augmentation surgery. The brassiere prevents gravitation of the breast tissue to the lateral sides, keeps the breast tissue away from the mid center, and supports the weight of the breasts. The brassiere is designed to promote less pain, less wound complications, esthetically improved wound healing, less heat generation, improved wound inspection and access for wound care, while maintaining support and dignity.

The present invention provides novel methods for the localized delivery of inotropic agents to the heart, including specific regions of the heart, such as the ventricles, for example in a subject undergoing cardiothoracic surgery, with the aim of supporting the myocardial contractile function of the heart.

A polymeric matrix for delivery of an HMG CoA reductase inhibitor such as a statin to tissue such as cardiac tissue in need thereof for the treatment or prevention of a disease or defect such as atrial fibrillation has been developed. In the preferred embodiment, a statin is delivered by means of a patch sutured to cardiac tissue at the time of cardiothoracic surgery. In the most preferred embodiment, the patch is a biodegradable material providing controlled or sustained release over a prolonged period of time, such as a week. Suitable materials include extracellular matrix, or other biodegradable hydrogels or polymeric materials providing sustained or controlled release of statin at the site of application.

The invention relates to a high-efficiency bio gel sealant and application thereof, which consists of main gel lyophilized powder, catalyst lyophilized powder, main gel cytolysate and catalyst cytolysate; during use, the main gel lyophilized powder is dissolved in the main gel cytolysate and the catalyst lyophilized powder is dissolved in the catalyst cytolysate, which are respectively absorbed in an aseptic injector of a double-cavity liquid pusher; the two solution are evenly mixed by the conehead of the double-cavity liquid pusher, and then sprayed on the wounds after surgery and bleeding, so as to form a semi-transparent ivory film; the invention also discloses a method of preparing all components of the high-efficiency bio gel sealant, including preparation of the main gel lyophilized powder, the catalyst lyophilized powder, etc. with pig blood as the raw material; the product of the invention is an absorbable bio gel combination which can be used immediately for blood stopping, sealing and adhesion of tissues, and is widely applicable in surgery fields, such as general surgery, orthopedics, cardiothoracic surgery, neurosurgery, obstetrics and gynaecology, etc.

A breast-supportive and breast-positioning brassiere designed to be used postoperatively by patients including obese patients and fuller-sized women who have undergone cardiothoracic surgery that requires a mid-sternal incision (sternotomy). The brassiere is also for other interventions in the thoracic region, when a comfortable and efficient individual positioning and support of the breast(s) would be desirable; an example being to prevent symmastia after breast augmentation surgery. The brassiere prevents gravitation of the breast tissue to the lateral sides, keeps the breast tissue away from the mid center, and supports the weight of the breasts. The brassiere is designed to promote less pain, less wound complications, esthetically improved wound healing, less heat generation, improved wound inspection and access for wound care, while maintaining support and dignity.

The invention belongs to the technical field of cardiothoracic surgery, and discloses a cardiothoracic surgery auxiliary control system and method based on virtual reality. The cardiothoracic surgeryauxiliary control system based on virtual reality comprises an action data acquisition module, an image shooting module, a main control module, an organ model building module, a virtual scene generating module, a navigation module, a data storage module and a virtual display module. According to the cardiothoracic surgery auxiliary control system and method based on virtual reality, a specific scene is automatically shot through the image shooting module, the artificial resources are saved, and the more accurate shooting effect can be ensured; meanwhile, three-dimensional re-building is conducted on a medical image through the navigation module to obtain a virtual model; the virtual model is fused with the body part of a patient by utilizing an augmented reality technology, so that the navigation effect on the medical surgery is achieved in the fused state, a doctor conveniently and accurately controls surgical instruments, the efficiency of the surgery is greatly improved, and the success rate of the surgery is greatly increased.

The invention discloses a lung protecting membrane for a cardiothoracic surgery. The lung protecting membrane comprises a shell and a lung protecting layer; the shell is of a hollow structure, the two side faces of the shell are each provided with a fastening belt, and the tail ends of the two fastening belts are provided with hook and loop fasteners which are used in a matched mode; the lung protecting layer is sequentially provided with an installing layer, a physical therapy layer and a gauze layer, the installing layer is connected with the shell through buckle heads and buckle holes which are arranged at the two ends of the surface and fixedly connected with the physical therapy layer, and the physical therapy layer and the gauze layer are connected through a zipper on the side. According to the lung protecting membrane for the cardiothoracic surgery, the lung protecting layer is connected with the shell through the buckle heads and the buckle holes, therefore, the lung protecting layer is convenient to assemble, disassemble and replace for a patient in time, and use is convenient; the shell is fastened on the body of the patient through the hook and loop fasteners and the fastening belts, so that use is convenient; the physical therapy layer and the gauze layer are connected through the zipper, so that the physical therapy layer and the gauze layer are convenient to separate; an electric heating wire and magnetic therapy blocks are arranged in the physical therapy layer, so that recovery of a patient is facilitated.

Three-dimensional solid contractile collagen scaffolds having improved biological properties and electromechanical performance are provided. The scaffolds can be used for cell transplantation, including the fixation of biocompatible reagents and adhesion molecules which control cell adhesion, apoptosis, survival and / or differentiation simultaneously. Grafting adhesion molecules to the collagen matrices renders the scaffold suitable for use in vascular and cardiothoracic surgery / medicine, as well as in cell therapy for the heart and in artificial heart muscle engineering. Also, a method for grafting and optimizing the presentation of adhesion peptides or biological agents in the scaffold is provided.

A functional element to be mounted on a retractor for performing cardiothoracic surgery has a securing device for mounting it releasably on the retractor. A device for holding up a beating heart lifted from an operating site has several spreadable strip-shaped holding fingers. It is proposed that three or four strip-shaped holding fingers are present which are designed to be bendable so that they can be shaped to form a holding basket adapted to the particular heart which is to be held.

The device of the present invention includes a dual chamber gas exchanger that is configured for increased flexibility and scalability for many clinical applications. The dual chamber oxygenator can be configured and used in various applications, such as in a heart-lung machine for cardiopulmonary support during cardiothoracic surgery, in an extracorporeal membrane oxygenation (ECMO) circuitry, asa respiratory assist device for patients with lung failure, and the like. The dual chamber gas exchanger features two sweep gas flow paths and two gas exchange membrane bundles enclosed in a housingstructure with various blood flow distribution and gas distribution mechanisms. The gas exchanger includes an outer housing, an intermediate housing, two gas exchange fiber bundles, a blood inlet, a blood outlet, two gas inlets, two gas outlets, two gas distribution chambers and an optional heat exchanger.

The invention belongs to the technical field of medicines, and discloses a cardiothoracic surgery auxiliary control system based on virtual reality. The cardiothoracic surgery auxiliary control system based on virtual reality comprises an information acquisition module, a sensing module, an image acquisition module, a central control module, an image processing module, a three-dimensional model construction module, a lesion information extraction module, a three-dimensional lesion model construction module, a surgery planning module, a positioning module, a navigation module, a surgery monitoring module, an early warning module and a display module. According to the system, a cardiothoracic model is constructed by using image data, so that the system has higher spatial resolution and more accurate and richer structural information. According to the system, a specific lesion model is reconstructed based on virtual reality equipment before the operation, so that a doctor can go deep into the lesion, observe tiny lesions at any angle and make three-dimensional operation planning. Compared with a traditional planning mode through a two-dimensional section, the system is more visual, three-dimensional, accurate and comprehensive.

The invention discloses a bilateral ventilation type left bronchus catheter comprising a main tube on which a right-side bronchus opening is arranged, wherein the main tube is provided with a cuff; the cuff is provided with a cuff tracheae one end of which is communicated with the cuff, and the other end of the cuff tracheae penetrates through the wall of the main tube to extend out of the main tube; the left bronchus is provided with two electrodes which are respectively connected with one end of each of electrode leads; and the other ends of the electrode leads respectively penetrate through the wall of the main tube to extend out of the main tube. According to the invention, two lungs can realize ventilation and respiratory tract dead spaces can be reduced maximally, thus ensuring enough ventilation. By using the bilateral ventilation type left bronchial catheter, electrocardingraphy, electrocardio defibrillation and pacemaking and body temperature detection can be carried out simultaneously while artificial respiration is performed, thus greatly shortening the preparation time of heart pacemaking. The bilateral ventilation type left bronchial catheter is wide in application, and can be widely applied to medical fields such as anaesthesia departments, respiration departments, cardiovascular departments, cardiothoracic surgery, emergency departments and the like.

The invention discloses an auxiliary device for cardiothoracic surgery. The auxiliary device comprises a surgical bed and a second fixing block, wherein four first fixing blocks are fixedly connectedto the lower surface of the surgical bed, the lower surfaces of the first fixing blocks are fixedly connected with the lower surfaces of inner walls of first grooves through first electric push rods,and the first grooves are formed in the upper surfaces of support legs. For the auxiliary device for cardiothoracic surgery, through the match among a second slide bar, a first slide sleeve, a secondslide sleeve, a third slide sleeve, a lung baffle device, an illuminating and desilting device and an arm bracket device, the fatigue of the arms of a doctor during the surgery is reduced, meanwhile,the accuracy of the surgery is greatly improved, and thus the surgery is carried out more smoothly; and by arranging second electric push rods, connecting blocks and universal wheels, the surgical bedforms a mobile trolley after the surgery, so that a patient in serious condition can be directly transferred to a cardiothoracic ICU from an operating room, and thus injuries caused by carrying to the patient in the serious condition after the surgery are reduced.

The invention discloses a cardiothoracic surgery drainage device with anti-blocking and easily-fixed functions. The drainage device comprises a drainage bottle, a negative-pressure drainage device anda drainage tube, the drainage tube comprises a puncturing tube and a flow guide tube, an anti-blocking connector is arranged between the puncturing tube and the flow guide tube, a filter screen is arranged in the anti-blocking connector, two ends of the anti-blocking connector are communicated with the puncturing tube or the flow guide tube, a plurality of annular grooves are uniformly formed inthe outer wall of the front end of the puncturing tube, the flow guide tube is connected with the drainage bottle, the negative-pressure drainage device is communicated with the drainage bottle through a negative-pressure tube, a one-way valve is arranged on the drainage tube, a communication direction of the one-way valve is consistent with a drainage direction of the one-way valve, a liquid discharging tube is arranged at the bottom of the drainage bottle, and a liquid discharging valve is arranged on the liquid discharging tube. According to the device, the anti-blocking connector is arranged between drug coatings with anticoagulant materials arranged on the inner walls of the puncturing tube and the flow guide tube, materials such as chippings and fibers can be filtered and interceptedby the filter screen or filter cotton in the anti-blocking connector in the drainage process, and blocking of the drainage tube is prevented.

The invention belongs to the field of medical instruments and particularly relates to a homogenate aspirator for minimally invasive removal of sludged blood and a control method of the homogenate aspirator. The homogenate aspirator comprises a main operating rod, a homogenate cutter bit, a mesh cover, a soft endoscope, a handle, a mesh cover adjusting rod, a cutter bit switch, a mesh cover adjustor, a negative-pressure switch, a camera controller, a main switch, a power supply cavity, a negative-pressure suction tube, video equipment and a negative-pressure aspirator. By adoption of the homogenate aspirator, a traditional general anesthesia method can be replaced, and the problem of clearing of residual sludged blood in the thoracic cavity due to bleeding and drainage nonsmoothness of a patient suffering from traumas or subjected to cardiothoracic surgeries can be solved under local anaesthesia and minimally invasive conditions, so that an operating process of sludged blood clearing can be dramatically simplified, and safety is improved.

The invention discloses a cardiothoracic surgery lung protection device. The cardiothoracic surgery lung protection device includes a U-shaped housing; connection members are arranged between the upper end and the lower end of the U-shaped housing; the left end and the right end of the U-shaped housing are provided with herringbone elastic bands; the top ends of the herringbone elastic bands are provided with first velcro tapes which are corresponding to each other; shoulder straps are arranged on side surfaces of the herringbone elastic bands; fixing straps are arranged on the front of the lower end of the U-shaped housing; the tail ends of the fixing straps are provided with second velcro tapes which are corresponding to each other; a groove is formed in the upper surface of the lower end of the U-shaped housing; a lung protection unit includes a disinfection gauze cotton layer, a breathable sterilizing layer, and a nursing layer; the breathable sterilizing layer is arranged under the disinfection gauze cotton layer, and the nursing layer is arranged under the breathable sterilizing layer; a heating layer is arranged on the upper surface of the nursing layer; and heating sheets are arranged in the heating layer. The cardiothoracic surgery lung protection device is easy to use, is good in lung protection effect, and is simple and novel in structure; and electrical heating wires and magnet therapy blocks are arranged in a physiotherapy layer, and thereby facilitating recovery of a patient.

The invention discloses a closed care drainage device for cardiothoracic surgery. The closed care drainage device comprises a drainage bag, the upper portion of the drainage bag is provided with a retractable part, one end of a drainage tube is connected with a puncture needle, the other end of the drainage tube is provided with a connecting sleeve, the top of the drainage bag is provided a sealing cover, the sealing cover is provided with a connecting hole connected with the connecting sleeve, and the connecting sleeve can be inserted into the connecting hole; a negative-pressure drainage apparatus is communicated with the drainage bag through a negative-pressure tube, the drainage tube is provided with a one-way valve, the one-way valve is formed by two one-way clacks arranged on the inner wall of the drainage tube, the one-way clacks point to the direction of drainage after being closed, the bottom of the drainage bag is provided with a liquid discharge tube, the liquid discharge tube is provided with a liquid discharge valve, and the drainage tube is provided with a squeeze tube located between the one-way valve and the drainage bag. Negative pressure is generated in the drainage bag through the negative-pressure drainage apparatus, and then effusion in the patient's body can be smoothly and thoroughly drained into the drainage bag under the action of negative pressure; asthe drainage tube is provided with the one-way valve, reverse flow of effusion can be prevented.

The invention provides a technical method of negative-pressure wound treatment method used for prevention and treatment of scarring hyperplasia at the surgical suture. Implicit factors of scar hyperplasia are mechanical stress, infection, inflammatory reaction and foreign body reaction of wounds. Among the implicit factors, wound tension plays a key function in the scar formation. Frequently-used scar prevention and treatment methods such as Silicone gel, pressure therapy, hormone injections and the like are poor in curative effect or has side effects. The negative-pressure wound treatment method is a novel prevention and treatment for wounds and scars at the surgical suture. Based on the structure and working principle of the negative-pressure wound treatment, the scarring hyperplasia can be effectively inhibited through closing, fixing and pressing the sutured wounds and playing continuous negative-pressure action on the wounds; at the same time, the main factors leading to the scar formation are intervened. The intervention process comprises the following steps: the tension of the wound tissue is remarkably alleviated; the wounds are closed; the wound healing is accelerated and the tissue inflammation is reduced, so that the scarring hyperplasia is effectively restrained. The negative-pressure wound treatment method is used for scar prevention and treatment of various surgical operation suture wounds, such as plastic surgery, beauty surgery, burn surgery, cardiothoracic surgery, head and neck surgery, maternity surgery and the like.

The invention provides a water feeding device for a cardiothoracic surgery nursing patient, and relates to the field of home kitchens. The water feeding device for the cardiothoracic surgery nursing patients comprises a supporting part; a fixing part is fixedly connected to the surface of the supporting part; a water storage device is fixedly connected to the interior of the fixing part; a pressurizing device is arranged on the upper surface of the water storage device; a water feeding mechanism is arranged on the upper surface of the water storage device and on the right side of the pressurizing device; and a moving structure is arranged on the rear side face of the supporting part. Air pressure is used for drinking water, and a water storage kettle is made of a heat preservation material, so that the patient can drink relatively comfortable water at any time, the patient can more simply supplement the water without bothering a medical staff and family members in the period of lying in bed, and the body of the patient does not need to be moved; and an air bag is used for pressurizing, so that the patient can perform pressurizing by himself / herself, the water flow speed is controlled, and the patient can conveniently control the water drinking amount.

The invention provides a drainage, puncture and positioning device for the cardiothoracic surgery. The device comprises a fixed sleeve, telescopic movable brackets, a fixing assembly and automatic supporting assemblies, wherein the fixing assembly and the fixed sleeve are rotationally connected through a rotating assembly, each telescopic movable bracket comprises a support I and a support II, thefixed sleeve and the support I are rotationally connected through a rotating assembly, one end, away from the fixed sleeve, of the support II is rotationally connected with the fixing assembly through a universal ball joint, and a plurality of automatic supporting assemblies are arranged on the fixing assembly in a matched manner. According to the four telescopic movable brackets, the inclinationdegree of the fixed sleeve can be adjusted by adjusting length of each telescopic movable bracket, and puncture demands of different parts in the thoracic cavity are met; and with adoption of the fixing assembly, air in a fixing rod is discharged by a push rod, so that the fixing rod is tightly adsorbed on the skin surface, adsorption and fixing functions are realized, the device can keep unchanged at a correct needle inserting point, a correct needle inserting angle and a correct needle inserting depth, and the inserted puncture needle is continuously fixed.

The invention discloses a cardiothoracic surgery nursing device facilitating fixation after movement. The cardiothoracic surgery nursing device comprises a bed plate, four corners of the lower surfaceof the bed plate are fixedly connected with supporting legs, sliding grooves are formed in the bottom ends of the supporting legs, rollers are slidably connected into the sliding grooves, sliding grooves are formed in four corners of each supporting leg, sliding blocks are slidably connected into the sliding grooves, and four corners of the lower surface of each sliding block are fixedly connected with supporting columns. According to the cardiothoracic surgery nursing device facilitating fixation after movement, medical staff can adjust the heights of the supporting columns through rockers as required, a nursing bed is supported by the supporting columns, the problem of inconvenience in fixation after movement is effectively solved, rubber pads prevent the supporting columns from scratching the ground, the medical staff can conveniently push the nursing bed through pushing handles, the pushing handles are stored by storage grooves and prevented from hindering normal activities of themedical staff, and discomfort of a patient caused by excessive hardness of the bed plate is avoided by a sponge breathable pad.