摘要:
A method of making a barbed suture by varying the blade geometry and/or the movement of the blade when cutting a suture is disclosed. The method can also be accomplished with a cutting device to create a plurality of barbs on the exterior of surgical suture. The barbs produced using the method with the cutting device can be the same or random configurations.
摘要:
An apparatus for dispensing medication having a canister containing medication to be dispensed to a user. The canister is movable in both a first and a second direction. The apparatus also includes a mouthpiece that provides a point of egress for the medication. The medication is dispensed to the user when the canister is moved in the first direction. Also included in the apparatus is a switch for completing an electrical circuit. The switch is activated when the canister is moved in the first direction closing the electrical circuit. The electrical circuit is opened when the canister moves in the second direction. A counter module is disclosed for performing a count upon the closure of the electrical circuit. The counter module also and displays a dispensation history of the medication in the canister. The apparatus also includes a seal for isolating the counter module from the mouthpiece and the canister.
摘要:
A method for manufacturing self-retaining suture is disclosed. The method provides for creating and supporting a suture during cutting of tissue-grasping elements at different angular positions. A cutting device is moved through the suture thread along a path which can include longitudinal, transverse, oscillating and depth components to create a desired tissue-grasping element on the surface of the suture. The path of the cutting device and the rotation of the suture relative to the cutting device are controlled so that a plurality of angularly-displaced tissue-grasping elements can be created on the suture.
摘要:
A dry powder inhaler having a housing, at least one single dose storage chamber able to contain a single unit dose, a discharge path adjacent the storage chamber, and a flexible and bendable seal plate closing the discharge path. When an air flow under pressure is applied to the top of the dose, the top seal is broken and the dose is driven against the seal plate which deflects away, allowing the powder of the dose to be driven into and along the discharge path. The air flow causes the seal plate (in the discharge path) to vibrate, which acts to break up the dose into particles of preferred size, as the dose is carried along with the air flow and delivered to a patient.
摘要:
An automated system for manufacturing self-retaining suture is disclosed. The system includes a cutting bed to which a suture is mounted. A power-operated cutting arm moves a cutting device through the suture along a preselected path and at a preselected angle to create a tissue retainer having a desired geometry. An indexing mechanism moves the suture relative to the cutting device. The operation of the cutting arm in conjunction with the geometry of the cutting device and movement of the suture thread allows for creating a plurality of tissue retainers having a desired geometry distributed along the length of the suture thread.
摘要:
A system for manufacturing a self-retaining suture is disclosed. The system includes a cutting bed which supports the suture during cutting. A cutting device makes cuts in the suture thread having a preselected geometry. A cutting arm is articulated to allow change of the angle of the cutting device during cutting. The change in the angle of the cutting device is used to control the depth of cut and/or elevate a tissue-retainer away from the suture to better engage tissue.
摘要:
A system for manufacturing self-retaining suture is disclosed. The system includes a cutting bed for creating and supporting a suture during cutting of tissue-grasping elements at different angular positions. A cutting device is moved through the suture thread along a path which can include longitudinal, transverse, oscillating and depth components to create a desired tissue-grasping element on the surface of the suture. The path of the cutting device and the rotation of the suture relative to the cutting device are controlled so that a plurality of angularly-displaced tissue-grasping elements can be created on the suture.
摘要:
An automated method for manufacturing self-retaining suture is disclosed. The suture is mounted to a support. A power-operated cutting arm moves a cutting device through the suture along a preselected path and at a preselected angle to create a tissue retainer having a desired shape and size. The suture is indexed relative to the cutting device. The operation of the cutting arm in conjunction with the geometry of the cutting device and linear advancement of the suture thread allows for creating a plurality of tissue-retainers having a desired geometry along the length of the suture thread.
摘要:
A barbed suture is disclosed having barbs defined by a variable-angle cut surface. A cutting bed supports the suture during cutting. A cutting device is moved through the suture thread along a selected path. The angle of the cutting device is changed during cutting so that there is a corresponding change in the angle of the cut surface which defines each barb. A cutting arm is articulated to allow change of the angle of the cutting device. The change in the angle of the cutting device is used to control the shape and depth of cut of the barbs.
摘要:
A system for manufacturing self-retaining suture includes means for supporting the suture during cutting of retainers which protrude from the suture at multiple angles. The system includes an anvil having a channel configured to support a suture during cutting of a retainer at a first angular position while providing for non-interference between the anvil and retainers previously cut on the suture at one or more angular positions different than the first angular position. In embodiments the channel is provided with notches which receive previously-formed retainers during creation of subsequent retainers. The system thereby provides for rotating the suture and supporting the suture with the anvil without interference with previously-formed retainers.