6 results about "Lung volume reduction" patented technology

Pulmonary treatment devices, systems and methods of use are provided which take into account the vast tissue damage of advanced COPD sufferers and provide treatments designed specifically to treat the particularly compromised lung tissues that are present in these patients. These treatments reduce trapped air volume, tension lung tissue and enhance lung elastic recoil. In particular, a variety of embodiments of pulmonary treatment devices are provided. The devices are comprised of a shape memory material wherein the devices are able to be expanded under tension, and then are able to recoil back toward an original relaxed or resting shape as the devices are deployed into the tissue. This action causes the pulmonary treatment devices to corkscrew into damaged tissue, becoming sufficiently entwined to allow pulling of the tissue by retraction of the device. This in turn re-tensions the lung causing lung volume reduction.

The application relates to an implant, a conveying mechanism, a lung volume reduction implant device and system, the lung volume reduction implant device comprising an implant and a conveying mechanism, the conveying mechanism being arranged to controllably release or recover the implant; the implant comprising a proximal end, a distal end and an intermediate section, the intermediate section being capable of being deformed between a coiled shape and a straightened shape; the conveying mechanism comprising a pushing part and a first connecting part connected with the pushing part, the first connecting part being detachably connected with the proximal end. The application can block the bronchus, the contraction stress area of the implant is complete, and the success rate of the lung volume reduction surgery is effectively improved. A plurality of implants do not need to be implanted, and the burden on the patient is further reduced. The implant and the conveying mechanism are detachably connected, the implant can be loosened in situ, the implant does not need to be pushed forward, and precise release is achieved.

Pulmonary treatment devices, systems and methods of use are provided which take into account the vast tissue damage of advanced COPD sufferers and provide treatments designed specifically to treat the particularly compromised lung tissues that are present in these patients. These treatments reduce trapped air volume, tension lung tissue and enhance lung elastic recoil. In particular, a variety of embodiments of pulmonary treatment devices are provided. The devices are comprised of a shape memory material wherein the devices are able to be expanded under tension, and then are able to recoil back toward an original relaxed or resting shape as the devices are deployed into the tissue. This action causes the pulmonary treatment devices to corkscrew into damaged tissue, becoming sufficiently entwined to allow pulling of the tissue by retraction of the device. This in turn re-tensions the lung causing lung volume reduction.

The present application relates to the technical field of medical devices, in particular to a self-locking bronchial one-way ventilation valve, comprising a flexible connecting piece and self-locking mechanism and one-way ventilation mechanism connected to both ends of the flexible connecting piece. The flexible connecting piece comprises a flexible support and a connecting block, and can self-adaptively adjust the included angle between the supports according to the bifurcation angle of the bronchus. The self-locking mechanism comprises a pressure receiving ring, a telescopic rod, an anchoring plate and a transmission unit, and provides initial anchoring through a spring. When coughing, the transmission mechanism is used to convert the axial impact force into radial pressure force, so as to realize dynamic self-locking. The one-way ventilation mechanism is provided with a one-way valve and an annular sputum discharge channel, and adopts various implementation modes of conical valve, duckbill valve, umbrella valve or one-way valve. While maintaining the one-way ventilation function, the sputum discharge unit is automatically opened to discharge sputum when coughing. The valve uses physiological impact force to enhance the fixing effect, solves the problems of easy displacement of the traditional valve and poor sputum discharge, and significantly improves the safety and effectiveness of lung volume reduction therapy.

The invention discloses a lung volume reduction elastic implant and a lung volume reduction instrument. The lung volume reduction elastic implant comprises a coiled elastic deformation section, a flexible guide section located at the far end of the implant, a flexible connection section located at the near end of the implant, a far-end straight section and a near-end straight section; the far-end straight section is arranged between the flexible guide section and the elastic deformation section, and the far-end straight section straightly extends along the tail end of the elastic deformation section connected with the far-end straight section; the near-end straight section is arranged between the flexible connecting section and the elastic deformation section, and the near-end straight section straightly extends along the tail end of the elastic deformation section connected with the near-end straight section; wherein the deflection force required by the flexible guide section to deflect relative to the far-end straight section is smaller than the deflection force required by the far-end straight section to deflect relative to the elastic deformation section; and the deflection force required by the flexible connecting section to deflect relative to the near-end straight section is smaller than that required by the near-end straight section to deflect relative to the elastic deformation section. The invention aims to solve the technical problem that the existing implant is easy to shift after being implanted.

The invention relates to the technical field of medical instruments, in particular to a self-locking bronchus one-way ventilation valve which comprises a flexible connecting piece, a self-locking mechanism and a one-way ventilation mechanism, the flexible connecting piece comprises flexible supports and a connecting block, and the included angle between the supports can be adjusted in a self-adaptive mode according to the branch angle of the bronchus. The self-locking mechanism comprises a pressure receiving ring, a telescopic rod, an anchoring plate and a transmission unit, initial anchoring is provided through a spring, axial impact force is converted into radial pressing force through the transmission mechanism during cough, and dynamic self-locking is achieved. The one-way ventilation mechanism is provided with a one-way valve and an annular sputum excretion channel, various implementation modes of a conical valve, a duckbill valve, an umbrella-shaped valve or a one-way valve are adopted, the one-way ventilation function is kept, and meanwhile the sputum excretion unit is automatically started to excrete sputum during cough. According to the valve, the fixing effect is enhanced through physiological impact force, the problems that a traditional valve is prone to displacement and unsmooth in sputum excretion are solved, and the safety and effectiveness of lung volume reduction treatment are remarkably improved.