Abstract: An overtube device is provided. The overtube device comprises features to form a first lumen for passing through a first scope during intubation. The first lumen is deformable for creating a second lumen for passing through a second scope. The second scope has a diameter greater than a diameter of the first scope.

Abstract: A composite bat includes a bat body having a grip section, a hitting section, and a gradually expanding section connected between the hitting section and the grip section with the outer diameter thereof gradually expanding from the grip section to the hitting section. The bat body is made of aluminum alloy, and there is a carbon fiber layer covering the aluminum alloy in the grip section. The thickness of the carbon fiber layer accounts for 15˜50% of the total thickness of the grip section.

Abstract: Methods and systems for administering directed fluidics during a medical procedure for removing an object are disclosed. A method includes inserting first and second medical instruments into a treatment site, providing irrigation and aspiration of the treatment site through the first and second medical instruments, determining a characteristic of one of the irrigation and the aspiration, and selecting a characteristic of the other of the irrigation and aspiration based on the determined characteristic.

Abstract: A method is provided for method for navigating a robotic endoscopic apparatus comprising: (a) providing a three-dimensional (3D) fiducial marker to a surgical field; (b) acquiring fluoroscopic image using a fluoroscopic imager wherein the fluoroscopic image contains the 3D fiducial marker, a body part and a portion of the robotic endoscopic apparatus placed inside of the body part; and (c) estimating a pose of the fluoroscopic imager based on the fluoroscopic image.

Abstract: A robotic surgical system with an input device has two operational modes by which both steerable and non-steerable elongate instruments can be effectively controlled, such as steerable catheters which can move in at least three orthogonal axes and non-steerable guidewires which can move via axial insertion/retraction or axial rotation. The robotic surgical system may include mapping schemes and haptic feedback to enhance the functionality, operation and ease of use of the input device when controlling non-steerable elongate instruments such as guidewires.

Abstract: Methods and systems for administering directed fluidics during a medical procedure for removing an object are disclosed. A method includes inserting first and second medical instruments into a treatment site, providing irrigation and aspiration of the treatment site through the first and second medical instruments, determining a characteristic of one of the irrigation and the aspiration, and selecting a characteristic of the other of the irrigation and aspiration based on the determined characteristic.

Abstract: Methods and systems for administering directed fluidics during a medical procedure for removing an object are disclosed. A method includes inserting first and second medical instruments into a treatment site, providing irrigation and aspiration of the treatment site through the first and second medical instruments, determining a characteristic of one of the irrigation and the aspiration, and selecting a characteristic of the other of the irrigation and aspiration based on the determined characteristic.

Abstract: A composite bicycle saddle includes a saddle body that is a sandwich structure composed of an upper outer layer, a lower outer layer and an intermediate layer with the upper outer layer and the lower outer layer to be of the same material and the intermediate layer of another material, a track arranged below the saddle body, and a front binding element and two rear binding elements being having an outer end portion provided with a cylindrical joint portion. The cylindrical joint portions of the front and rear binding elements are inserted into respective mounting through holes of the track and respective through holes of the saddle body and fused and integrated with the upper outer layer and lower outer layer or the intermediate layer of the saddle body.

Abstract: A composite bicycle saddle includes a saddle body that is a sandwich structure composed of an upper outer layer, a lower outer layer and an intermediate layer with the upper outer layer and the lower outer layer to be of the same material and the intermediate layer of another material, a track arranged below the saddle body, and a front binding element and two rear binding elements being having an outer end portion provided with a cylindrical joint portion. The cylindrical joint portions of the front and rear binding elements are inserted into respective mounting through holes of the track and respective through holes of the saddle body and fused and integrated with the upper outer layer and lower outer layer or the intermediate layer of the saddle body.

Abstract: A bicycle disc wheel includes two discs respectively formed of two composite material layers with a foam material bonded between the two composite material layers, a wheel frame arranged between the two discs in a concentric manner; and a spoke frame composed of a plurality of I-shaped ribs and sandwiched between the two discs. Each I-shaped rib is composed of a foam material and a composite material cladded on the foam material. Each I-shaped rib has a relatively wider opposite upper and lower sides and a relatively narrower middle section when it is viewed from the cross section, and the relatively wider opposite upper and lower sides of each I-shaped rib are respectively attached to the respective inner side of the two discs.

Abstract: Certain aspects relate to systems and techniques for mapping and/or navigation of an interior region of a body with a robotically-enabled medical instrument. The instrument may include a position sensor that provides positional information as the instrument navigates within the interior region. Visual indicia derived from the positional information may be superimposed on a reference image of the interior region. The visual indicia may characterize historical positions of the instrument. The instrument may include an imaging device. Images of the interior region captured with the imaging device can be linked to the position within the interior region where the images were captured.

Abstract: A composite ball bat includes a bat body made of a multilayer fiber composite material and including a hollow barrel, a handle and a tapered section joining the hollow barrel to the handle and having an outer diameter reducing gradually from the hollow barrel toward the handle, and a plurality of rings arranged in the hollow barrel of the bat body and spaced along the axis of the bat body with the outer circumferences thereof fixed on the inner circumference of the hollow barrel of the bat body. In this way, the composite ball bat of the invention can use these rings to improve the hitting effect while reducing weight.

Abstract: A composite ball bat includes a bat body made of a multilayer fiber composite material and including a hollow barrel, a handle and a tapered section joining the barrel to the handle and having an outer diameter reducing gradually from the barrel toward the handle, and a tube member coaxially mounted in the hollow barrel of the bat body and having a hardness higher than that of the hollow barrel of the bat body. In this way, the composite ball bat of the present invention can use the tube member to improve the hitting effect while reducing the weight.

Abstract: A composite ball bat includes a bat body made of a multilayer fiber composite material and including a hollow barrel, a handle and a tapered section joining the barrel to the handle, and a core material mounted in the hollow barrel of the bat body. The core material includes a rod member longitudinally set in parallel to the axial direction of the bat body, a plurality of rings attached onto the rod member and arranged along the axial direction of the rod member at equal intervals, and a plurality of elastic bands wrapped around the outer periphery of the rings within the inner peripheral surface of the hollow barrel in a one-to-one manner. In this way, the composite bat of the invention can use the core material to increase the structural strength, improve the hitting effect.

Abstract: Methods and systems for administering directed fluidics during a medical procedure for removing an object are disclosed. A method includes inserting first and second medical instruments into a treatment site, providing irrigation and aspiration of the treatment site through the first and second medical instruments, determining a characteristic of one of the irrigation and the aspiration, and selecting a characteristic of the other of the irrigation and aspiration based on the determined characteristic.

Abstract: A bicycle disc wheel includes two discs respectively formed of two composite material layers with a foam material bonded between the two composite material layers, a wheel frame arranged between the two discs in a concentric manner; and a spoke frame composed of a plurality of I-shaped ribs and sandwiched between the two discs. Each I-shaped rib is composed of a foam material and a composite material cladded on the foam material. Each I-shaped rib has a relatively wider opposite upper and lower sides and a relatively narrower middle section when it is viewed from the cross section, and the relatively wider opposite upper and lower sides of each I-shaped rib are respectively attached to the respective inner side of the two discs.

Abstract: A robotic surgical system with an input device has two operational modes by which both steerable and non-steerable elongate instruments can be effectively controlled, such as steerable catheters which can move in at least three orthogonal axes and non-steerable guidewires which can move via axial insertion/retraction or axial rotation. The robotic surgical system may include mapping schemes and haptic feedback to enhance the functionality, operation and ease of use of the input device when controlling non-steerable elongate instruments such as guidewires.

Abstract: Methods and systems for administering directed fluidics during a medical procedure for removing an object are disclosed. A method includes inserting first and second medical instruments into a treatment site, providing irrigation and aspiration of the treatment site through the first and second medical instruments, determining a characteristic of one of the irrigation and the aspiration, and selecting a characteristic of the other of the irrigation and aspiration based on the determined characteristic.

Abstract: A robotic surgical system with an input device has two operational modes by which both steerable and non-steerable elongate instruments can be effectively controlled, such as steerable catheters which can move in at least three orthogonal axes and non-steerable guidewires which can move via axial insertion/retraction or axial rotation. The robotic surgical system may include mapping schemes and haptic feedback to enhance the functionality, operation and ease of use of the input device when controlling non-steerable elongate instruments such as guidewires.

Abstract: A bat of the invention includes a handle portion, a connecting portion, and a hitting portion. The handle portion and the connecting portion are both made of fiber composite material. The connecting portion has a small radius end connected with the handle portion, and a large radius end having a first slope section. The hitting portion has a fiber composite material layer and a metal layer. The fiber composite material layer has an end wall, and a peripheral wall connected with the end wall and having a second slope section. Two ends of the metal layer respectively have third and fourth slope sections which are respectively connected with the first slope section of the connecting portion and the second slope section of the fiber composite material layer. As a result, the bat of the invention is reduced in weight and effectively improved in batting effect.