4699 results about "Anatomy" patented technology

Systems and methods for cooling an organ to an individualized temperature based on organ parameters. A transport container can store the organ at a target temperature determined based on characteristics of the organ and the donor. A processor can determine the target temperature for preservation of the organ. The determination may be based on preservation time, the type of the organ, the age of the donor, the circulatory condition of the donor, the brain condition of the donor, and the metabolic rate of the donor.

Systems and methods of the invention generally relate to prolonging viability of bodily tissue, especially lung tissue, through the use of an expandable accumulator to maintain a constant pressure within the lumen of the organ even during external pressure fluctuations due to, for example, flight. Systems and methods may include prolonging donor organ viability in storage through the use of an organ container that mimics the geometry and orientation of the organ in vivo.

Systems and methods of the invention generally relate to prolonging viability of bodily tissue, especially an organ such as a lung, by adjusting pressure as needed to maintain a constant pressure within the organ even during external pressure fluctuations due, for example, to transportation of the organ in an airplane. Gas passing into and out of the organ may be conditioned to prolong tissue viability.

Systems and methods of the invention generally relate to prolonging viability of bodily tissue, especially lung tissue, through the use of an expandable accumulator to maintain a constant pressure within the lumen of the organ even during external pressure fluctuations due to, for example, flight. Systems and methods may include prolonging donor organ viability in storage through the use of an organ container that mimics the geometry and orientation of the organ in vivo.

Systems and methods of the invention generally relate to prolonging viability of bodily tissue, especially lung tissue, through the use of an expandable accumulator to maintain a constant pressure within the lumen of the organ even during external pressure fluctuations due to, for example, flight. Systems and methods may include prolonging donor organ viability in storage through the use of an organ container that mimics the geometry and orientation of the organ in vivo.

An introducer can include an introducer needle and an introducer sheath having a transition therebetween that eases tissue over a distal end of the introducer sheath without catching tissue thereon tissue despite an excised portion of the introducer needle. The introducer needle can include a needle shaft having a longitudinal needle slot extending from a proximal portion of the needle shaft through a distal needle tip, which results in an excised portion of a heel of a bevel of the needle tip. The introducer sheath can include a sheath body and a tapered sheath tip. The sheath body can be over the needle shaft sealing the needle slot thereunder but for a sheath-body opening in a proximal portion of the sheath body for an access guidewire. The introducer can include the transition from the bevel of the needle tip to at least the taper of the sheath tip.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.

A neurosurgery system for probing brain tissue of a patient for tumorous tissue. The system including a suction tool, an excitation source, an optical instrument, and a controller. The suction tool including a suction cannula defining a lumen, an optical fiber configured to transmit fluorescence emitted by the brain tissue; and an indicator configured to selectively emit visible light. An excitation source is configured to emit an excitation light having a wavelength to induce the fluorescence in the tumorous tissue. The optical instrument is coupled to the optical fiber. The optical instrument configured to convert the fluorescence emitted by the brain tissue and transmitted by the optical and configured to determine that the brain tissue is tumorous based on the electrical signal and activate the indicator based on the determination.

A urinary drainage system includes an air pressure apparatus. The air pressure apparatus includes a connector and an adapter. The connector includes a reduced diameter portion, a connector lumen extending from an upstream opening to a downstream opening in the reduced diameter portion, and a lateral port configured for drawing a fluid sample from the connector lumen. The adapter is sealing coupled to the connector and includes an adapter lumen receiving the reduced diameter portion, the downstream opening in fluid communication with the adapter lumen. A luminal space is defined in the adapter lumen around the reduced diameter portion of the connector. The adapter further includes an air intake port including a port lumen orthogonal to the adapter lumen, which is configured to provide a positive air flow to the luminal space to draw a fluid through the downstream opening in the reduced diameter portion of the connector.

An introducer sheath is described. The introducer sheath may include a tubular body. The tubular body may extend from a distal end toward a proximal end. The tubular body may include a lumen. The lumen may at least partially be defined by a wall. A channel may be disposed within the wall. The channel may be configured to receive a guidewire. The tubular body may include an expandable portion expandable to increase a cross-sectional area of the lumen.

The invention provides a knee joint prosthesis tibial plateau capable of enhancing fixation and a tool matched with the tibial plateau, the knee joint prosthesis tibial plateau specifically comprises a tibia support, the tibia support is of a hollow cylinder structure, and three convex bodies are fixedly arranged on the outer surface of the tibia support; a groove penetrating into the tibia support is formed in the abutment, and the abutment is fixedly arranged on the tibia support; the pushing device comprises extension rods arranged at the two ends of a worm, the worm with threads arranged on the outer surfaces of the two ends, turbines arranged on the two sides of the worm, upper supporting bodies arranged at the tops of the turbines and connected with the fixing device through first connecting bodies, and lower supporting bodies arranged at the bottoms of the turbines and connected with the fixing device. The fixing device is a hollow cone, a first spring is arranged in the fixing device, one end of the first spring is connected with the first connector, and the other end of the first spring is connected with a fixing block. According to the technical scheme, the technical problem that after the knee joint prosthesis is implanted into the tibia, the tibial plateau is unstable, the prosthesis is loosened and disengaged, and then bone fusion is affected is effectively solved.

An introducer can include an introducer needle (134) and an introducer sheath (136) having a transition therebetween that eases tissue over a distal end of the introducer sheath without catching tissue thereon tissue despite an excised portion of the introducer needle. The introducer needle can include a needle shaft (140) having a longitudinal needle slot (146) extending from a proximal portion of the needle shaft through a distal needle tip (144), which results in an excised portion of a heel of a bevel (150) of the needle tip. The introducer sheath can include a sheath body (162) and a tapered sheath tip (170). The sheath body can be over the needle shaft sealing the needle slot thereunder but for a sheath-body opening (166) in a proximal portion of the sheath body for an access guidewire.

An anti-hemorrhaging device includes an elongate body, a flexible looped segment, a shield, and an inflatable seal. The elongate body is configured to attach to a vacuum source. The flexible looped segment is attached to the elongate body includes a plurality of holes on an inner circumference thereof. The flexible looped segment is configured to be placed in a uterus. Activation of the vacuum source is configured to pull vacuum through the plurality of holes so as to collapse the uterus upon insertion of the elongate body into the uterus. The shield is folded around an exterior circumference of the looped portion and has edges that extend radially inwards relative to the flexible looped distal section. The shield is configured to prevent tissue from occluding the plurality of holes when vacuum is applied. The inflatable seal is attached to the elongate body and is configured to seal the uterus.

The present invention concerns extensible absorbent pads for wound dressings. The absorbent pad has a plurality of fenestrations therein, wherein the fenestrations are arranged in a pattern about a central point. The pattern comprises one or more fenestrations having symmetry about a cardinal axis and one or more fenestrations having symmetry about an intercardinal axis, wherein the cardinal and intercardinal axes cross at the central point. The absorbent pads of the present invention can be used in advanced wound care dressing applications where additional stretch and extensibility of the dressing will assist clinicians in applying the dressing to difficult to dress anatomical areas.

An example apparatus is provided for the approximation of two bones. The apparatus can include a nail configured to be disposed within a first bone (e.g., the fibula). The nail can include a proximal end, a distal end, and a rigid body. The apparatus can further include one or more first threads disposed along the proximal end of the nail, and one or more second threads disposed along the distal end of the nail. The first thread(s) can be axially spaced from the second thread(s).

The present disclosure relates to prosthetic valves and valvular structures thereof. In an example, a prosthetic valve can include a frame movable between a radially compressed configuration and a radially expanded configuration, and a valvular structure coupled to the frame. The valvular structure is a one-piece material that includes a plurality of integrally formed leaflets configured to regulate flow through the prosthetic valve, and at least one integral commissure fold continuously extending between two adjacent leaflets. The integral commissure fold is defined proximal to an intermediate slit of the valvular structure, and extends radially outwards through a window opening of the frame, forming a first commissure coupled to the frame.

A tissue treatment system and method of using the tissue treatment system determines a size of a body lumen, or a neuromodulation parameter corresponding to the size of the body lumen. The tissue treatment system fills a balloon with a fluid when the balloon is within a body lumen. A fluid parameter of the fluid is detected over a period of time. A parameter curve of the fluid parameter is determined. The parameter curve includes the fluid parameter versus an independent variable over the period of time. The parameter curve includes inflections that correspond to changes in the fluid parameter. Based on the inflections, the system can determine the body lumen size or the neuromodulation parameter. Other embodiments are also described and claimed.

Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and / or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and / or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways.

A device for spinal correction includes a stabilizer assembly including a hinge including a first rod-bearing leaf; a second rod-bearing leaf rotatably coupled to the first rod-bearing leaf to provide coronal or sagittal freedom of movement, or both, of the stabilizer assembly; a locking mechanism to lock the first and second rod-bearing leaves at a desired angle; a first stabilizing rod coupled to the first rod-bearing leaf; a second stabilizing rod coupled to the second rod-bearing leaf; and a plurality of monoaxial or polyaxial links, wherein each monoaxial or polyaxial link is movably coupled to the first or second stabilizing rod and is movably couplable to a first spinal rod or a second spinal rod fixed to the spine; wherein the stabilizer assembly is couplable to the first or second spinal rod to stabilize the spine to prevent compression, distraction, or translation of the spinal cord during a spinal correction.

Bone plates for engaging bone members are described herein. The bone plates can receive one or more screws to secure the bone plates to an underlying bone member. The one or more screws can be inserted into bone plate holes that can be considered locking or non-locking. The bone plates described herein can have particular combinations of locking and / or non-locking holes. Additional bone plate holes can be used to accept sutures, K-wire, or other instrumentation.

A device including: a finger body, the finger body including one or more finger cavities disposed along a length of the finger body, the length of the finger body in a default shape defining a first axis, the finger body being bendable away from the first axis in response to a change in a finger fluid pressure in the one or more finger cavities; and a petal, the petal being coupled to the finger body at one or more points along the length of the finger body, the petal having one or more petal cavities disposed thereon, wherein the petal is actively deformable and / or passively deformable in response to the bending of the finger body and / or a change in a petal fluid pressure in the one or more petal cavities.

A stent, such as transluminal stent, is disclosed. The stent includes a tubular member with a proximal end, a distal end, and a central portion therebetween. The elongate tubular member comprises a scaffolding forming a plurality of cells and defining a lumen of the elongate tubular member. A proximal portion of the tubular member forms a retention member, wherein the diameter of the retention member is greater than the diameter of the central portion, and wherein a proximal end of the retention member includes an area of increased scaffolding density.

The application provides an extendable digestive tract cannula and application thereof, and relates to the technical field of medical devices. The application comprises a first cannula, a second cannula and a degradable material. Opposite ends of the first cannula are a proximal end and a distal end, respectively. The first cannula is sleeved with the second cannula, and a double-layer structure is formed at the distal end of the first cannula. The double-layer structure is fixed by the degradable material. When the degradable material degrades, the second cannula moves towards the end face of the distal end of the first cannula. By setting the movable second cannula, the second cannula moves backward after the degradable material degrades, so that the length of the digestive tract cannula is extended. Since the length of the digestive tract cannula is increased, the area of intestinal absorption is also increased, the compensatory absorption function of the intestine at the distal end of the digestive tract cannula is weakened, the isolation effect of chyme and the intestine is improved, and the digestion and absorption effect of the intestine can be reduced for a long time.

A surgical anchor device for being anchored on the mucous membrane of the inner wall of the intestine, the device having a temporary anchor element presenting anchoring that can be modified in a controlled manner and having a first substantially cylindrical multiply-perforated wall presenting properties of radial elasticity whereby the first wall presents an outer diameter that can be varied in controlled manner, wherein a portion of the inner surface of the first wall is lined with an independent leakproof inner sheath having only its longitudinal ends fastened to the anchor element to define a suction chamber between the inner sheath and the first wall, the temporary anchor element being coupled to a flexible or semi-rigid tube extending outside the anchor element, an open end of the injection-suction tube opening out into the suction chamber enabling air to be injected into or sucked out from the suction chamber.

Apparatus and methods for deactivating bronchial nerves and ablating smooth muscle extending along a bronchial branch of a mammalian subject to treat asthma and related conditions. An ultrasonic transducer (11) is inserted into the bronchus as, for example, by advancing the distal end of a catheter (10) bearing the transducer into the bronchial section to be treated. The ultrasonic transducer emits ultrasound so as to heat tissues throughout a relatively large impact volume (13) to a temperature sufficient to inactivate nerve conduction and ablate smooth muscle but insufficient to cause rapid ablation or necrosis of the surrounding tissues. The treatment can be performed without locating or focusing on individual bronchial nerves or smooth muscle.

To provide a system, a suturing device and a method for deployment of a stranded anchor via an endoscope.SOLUTION: The present disclosure relates generally to devices for endoscopic suture ends. In some embodiments, a suturing device 100 may include an elongate member 102 having a working channel 110 and a suture channel 112, the elongate member 102 having a proximal end 106 and a distal end 108. The suturing device 100 may further include a suture extending through the suture channel 112 and a plurality of anchor elements coupled to the suture such that the suture and the plurality of anchor elements may be deployed from the elongate member 102 for engagement with the target tissue 116.SELECTED DRAWING: Figure 2A

The double-cavity cannula comprises a cannula body, the cannula body comprises an outer tube with an opening in the upper end and an inner tube coaxial with the outer tube, the upper end of the outer wall of the cannula body is provided with a connecting part communicated with the cannula body in a matched mode, a plurality of blood guide side holes are formed in the lower portion of the outer wall of the outer tube, and the opening in the lower end of the inner tube is communicated with a blood guide hopper. A blood return assembly is arranged on the inner wall of the outer tube and above the blood guide hopper, a blood flow guide cover is arranged on the inner wall of a blood return opening of the blood return assembly in a matched mode, a balloon capable of being filled and emptied is arranged on the outer wall of the outer tube and above the blood guide side hole, a filling valve is arranged on one side of the outer wall of the connecting part, and the filling valve is communicated with the balloon through a filling pipeline. When blood is guided, the conditions of local blood vessel wall adsorption and unsmooth blood guiding cannot be easily caused by the design of the blood guiding side holes, and the injection effect, blood turbulence and hemolysis risk increase cannot occur during blood return.

A bone marrow aspiration device includes an outer cannula connected to an outer handle, and a first cannula that fits through the outer cannula and extends beyond a distal end of the outer cannula. The first cannula is connected to a first handle including a mating feature. A removable sharp stylet fits coaxially through the first cannula and is connected to a stylet handle including a mating feature to engage with the mating feature of the first handle, to couple the stylet handle to the first handle. A proximal end of stylet forms an adapter to couple to a drill, the first cannula and stylet rotating together when driven by the drill coupled to the adapter. A second cannula fits through the first cannula once the stylet is removed, a distal end of the second cannula closing off the distal end of the first cannula but leaving open one or more side apertures in the first cannula, to aspirate bone marrow through the open side apertures. A screw mechanism, formed by a lead screw extending from the first handle and engaging a threaded portion of the outer handle, allows the first cannula to be retracted through the outer cannula with rotation of the first handle relative to the outer handle.