144 results about "Surgery.cardiothoracic" 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.

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.

The invention provides a lung expiration training device for nursing of cardiothoracic surgery patients and relates to the technical field of medical equipment. The lung expiration training device based on cardiothoracic surgery patient nursing comprises a base, wherein vertical plates are fixedly connected to the positions, close to the left side edge and the right side edge, of the upper surface of the base, a top plate is fixedly connected to the tops of the vertical plates, an air conveying pipe is arranged above the base, and two ends of the air conveying pipe penetrate through the vertical plates; an adjuster is fixedly connected to a surface, close to the right side, of the gas conveying pipe, a first one-way valve is fixedly connected to the surface, located on the left side of the adjuster, of the gas conveying pipe, and a gas flow detection sensor is fixedly connected to an inner side wall of the gas conveying pipe. The device is advantaged in that the position of the vent hole can be adjusted by shifting the shifting block, training difficulty can be controlled according to the expiration condition of a patient, the breathing condition of the patient can be improved more quickly, training efficiency of the patient can be improved, the patient can see the training result more quickly, and the patient is helped to cultivate training confidence.

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.

The invention discloses an expander for cardiothoracic surgery and a prompting method. The expander comprises a supporting frame, sliding blocks, a connecting block, a gear and a first expansion handle. Connecting plates are mounted on the outer wall of the lower end of the supporting frame; chutes are formed in the outer walls of the opposite sides of the two connecting plates. The sliding blockis installed in the chute. A supporting plate is mounted on the outer wall of one end, penetrating through the chute, of the sliding block; racks distributed in parallel at equal intervals are arranged at the upper end of the supporting plate. A bearing is embedded in the connecting plate; a rotating shaft is installed in the bearing; a gear is installed on the outer wall of the side, penetratingthrough the bearing, of the rotating shaft; the gear is engaged with the rack; a connecting block is installed on the outer wall of one side of the connecting plate; and a limiting rod is installed inthe connecting block. By arranging the gear, the limiting rod and a spring, the effect of adjusting the wound expansion distance is achieved, the wound expansion stability is guaranteed, the situation that the observation sight of medical staff is blocked and judgment of the medical staff is affected is avoided, and the equipment practicability is improved.

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 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 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 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 cardiothoracic surgical closed nursing drainage device which comprises a liquid storage bottle. A sealing cover is arranged on the upper surface of the liquid storage bottle,an exhaust tube and a connecting tube are arranged on the upper surface of the sealing cover, an inspiration tube is arranged inside the exhaust tube, an inspiration barrel is arranged at the end, which is far away from the exhaust tube, of the inspiration tube, a rubber plug is arranged inside the inspiration barrel, the outer side surface of the rubber plug is in contact with the inner side surface of the inspiration barrel, a push handle is arranged on the rear surface of the rubber plug, and a push plate is arranged at the end, which is far away from the rubber plug, of the push handle. The cardiothoracic surgical closed nursing drainage device has the advantages that the cardiothoracic surgical closed nursing drainage device is simple in structure, can be reliably fixed and is safe and hygienic; treatment suffering can be relieved for patients to a great extent, and the cardiothoracic surgical closed nursing drainage device can bring convenience in use; the cardiothoracic surgical closed nursing drainage device can be adhered on the skin of the patients without adhesive tapes, and accordingly skin allergy of the patients can be completely eradicated; a first air bag can be pinched, accordingly, air in the first air bag can be delivered into a second air bag via an air inlet tube, and a drainage tube can be conveniently fixed.