94 results about "Snare instrument" patented technology

A system and method for controlling electrosurgical snares are disclosed. The system includes an electrosurgical instrument having an elongate tubular sheath having proximal and distal ends, the sheath having a longitudinal axis defined therethrough and a shaft having proximal and distal ends. The shaft extends through and is axially movable relative to the sheath. A snare loop is provided at the distal end of the shaft and is configured for encircling tissue. Movement of the shaft relative to the tubular sheath changes the diameter of the exposed snare loop. A feedback sensor operatively connected to the elongated tubular sheath which determines at least one condition of the snare loop, and an electrosurgical generator provides electrosurgical energy to the electrosurgical snare instrument. The generator is configured to receive feedback measurements from the electrosurgical snare instrument and to adjust electrosurgical energy as a function of the measurements.

An endoscopic cutting and retrieval instrument includes an elongate electrically conductive wire and an inner loop and an outer loop both connected to a distal end of the wire. The inner loop and the outer loop have a common proximal loop portion and different distal loop portions. The distal loop portion of the outer loop is longer than the distal loop portion of the inner loop so that the outer loop is larger than the inner loop. A net attached to the outer loop forms a retrieval basket for capturing severed polyps and other tissues masses.

A snare drum including a drum shell having an upper head and a lower head mounted thereon and a frame for holding a plurality of snare wires. The frame arranges the snare wires to be in contact with the lower head or to be spaced from the lower head. The snare drum includes a first latched member and a second latched member respectively located at opposite ends of the frame at an outer side the drum shell. An attachment mechanism is located on the drum shell for arranging the frame on a surface of the lower head. The attachment mechanism includes a first latching member and a second latching member arranged between the drum shell and the first and second latched members for separably latching the first and second latched members, respectively.

A snare drum including a drum shell having an upper head and a lower head mounted thereon and a frame for holding a plurality of snare wires. The frame arranges the snare wires to be in contact with the lower head or to be spaced from the lower head. The snare drum includes a first latched member and a second latched member respectively located at opposite ends of the frame at an outer side the drum shell. An attachment mechanism is located on the drum shell for arranging the frame on a surface of the lower head. The attachment mechanism includes a first latching member and a second latching member arranged between the drum shell and the first and second latched members for separably latching the first and second latched members, respectively.

A device for dampening sounds produced by a drumhead of a musical drum having a drumshell comprising a frame assembly having a first elongated bar member with a first channel and a second elongated bar member with a second channel. The two bar members are disposed in opposed spaced apart parallel relation. Mounting brackets are affixed and secured to the two bar members at their opposing ends. Attached, respectively, to the two mounting brackets between the two bar members are the opposing ends of an assembly of snare wires. The mounting brackets are also provided to connect the assembly to the drumshell and are vertically adjustable between a high tension position such that the snare wires are moved to press against the drumhead and a lower tension position in which the wires are caused to relax to enable the release of tension of the wires against the drumhead. The dampening member has end components adapted to fit slidably into the first and second channels, respectively, to enable the dampening member to be movable between the two elongated bar members along the frame assembly in physical contact with the snare wires to adjust the tension of the wires against the drumhead to produce a variety of sounds. The dampening member is comprised of a base member, a device for physically contacting the snare wires as it is moved along the frame assembly and a resilient material situated between the base member and the contact device to buffer vibrations produced by the struck drumhead.

An adjust device for adjusting a tension of a snare of a snare drum includes a body laterally secured on a periphery of the snare drum. A slider is movably received in the body and one end of the snare is secured on the slider so that the tension of the snare is adjusted when the slider is moved. An adjuster is partially screwed into the body for adjusting the stroke of the slider. An actuated device includes a shaft having a first end extending through the adjuster and connected to the slider for driving the slider. A lever is pivotally connected to a second end of the shaft for lifting the shaft and the slider to pull the snare of the snare drum.

A snare drum includes a strainer system which switches the position of a snare wire between an OFF position spaced from a lower drumhead and an ON position in contact with the lower drumhead. The strainer system includes a frame to which the snare wire is attached, and a pair of link mechanisms which are joined to the respective end portions of the frame and attach the respective end portions of the frame to a shell of the snare drum. After switching the position of the snare wire to the ON position, the position of the snare wire with respect to the lower drumhead is adjusted by operating an adjust screw of the second link mechanism.

A strainer for a snare assembly adapted to be attached to a percussion instrument, comprising a tensioning mechanism for applying a tension to snares of a percussion instrument; a lever having a first end and a second end, the lever being pivotably mounted to the tensioning mechanism, whereby pivoting the lever changes a position of the tensioning mechanism to change the tension in the snares; and a positive locking mechanism to positively lock said lever in at least one of a plurality of snare tensioning positions. The positive lock mechanism mechanically connects the lever to a body portion fixedly mounted to the percussion instrument. In the preferred embodiment, the positive locking mechanism comprises a movable button that is movable relative to the lever to change the positive locking mechanism to an unlocking condition where the lever is free to pivot with respect to the body portion.

A tensioner system for a snare assembly adapted to be attached to a percussion instrument, comprising a main body adapted to be fixedly mounted to the percussion instrument; a snare fastener assembly for fastening snares with respect to the main body; a rotatable tension adjuster lever rotatably mounted with respect to the main body and the snare fastener. Rotating the tension adjuster changes a position of the snare fastener to change tension of said snares. A positive locking mechanism positively locks the rotatable tension adjuster in at least one of a plurality of snare tensioning positions, wherein the positive lock mechanism mechanically connects the tension adjuster with respect to the main body fixedly mounted to the percussion instrument. The positive locking mechanism comprises a movable knob that is movable relative to said main body to change the positive locking mechanism from a locking condition to an unlocking condition.

A device for dampening sounds produced by a drumhead of a musical drum having a drumshell comprising a frame assembly having a first elongated bar member with a first channel and a second elongated bar member with a second channel. The two bar members are disposed in opposed spaced apart parallel relation. Mounting brackets are affixed and secured to the two bar members at their opposing ends. Attached, respectively, to the two mounting brackets between the two bar members are the opposing ends of an assembly of snare wires. The mounting brackets are also provided to connect the assembly to the drumshell and are vertically adjustable between a high tension position such that the snare wires are moved to press against the drumhead and a lower tension position in which the wires are caused to relax to enable the release of tension of the wires against the drumhead. The dampening member has end components adapted to fit slidably into the first and second channels, respectively, to enable the dampening member to be movable between the two elongated bar members along the frame assembly in physical contact with the snare wires to adjust the tension of the wires against the drumhead to produce a variety of sounds. The dampening member is comprised of a base member, a device for physically contacting the snare wires as it is moved along the frame assembly and a resilient material situated between the base member and the contact device to buffer vibrations produced by the struck drumhead.

A snare strainer includes first and second strainers for respectively holding both ends of a snare assembly (i.e., snares), which is controlled to move in close contact with or apart from a bottom-side drumhead of a snare drum. The first strainer includes a fixed base and a snare stretching member, which further includes a holding member for holding a snare connection member, an interconnection member, a pair of arms attached to both ends of the interconnection member, a pair of levers respectively attached to the arms, and a stretching rod that is bridged between the levers to support the intermediate portion of the snare connection member. The first strainer further includes a tension adjuster for adjusting the tension of the snare connection member, and a height adjuster for adjusting the height of the stretching rod.

A snare drum stand lock adjustment comprised of two plates containing an inner channel to merely clamp a lever of a connector; both plates being pivoted to each other on one side with an axial pin; one end of the lock adjustment being fastened to a brace of the stand and the other end receiving insertion of a lever from a connector to permit easy and secure operation of the lock adjustment.

A snare strainer adapted to a snare drum comprises first and second strainers, which are attached to opposite positions on the exterior circumferential surface of a drum cylinder and by which a snappy member including snares is controlled to move in close contact with or separate from the backside drumhead upon operation of a switch mechanism. One end of an interconnection member included in the snappy member is held between first and second holding members of the first strainer, and the other end is held between third and fourth holding members of the second strainer. A tension adjustment screw is operated to adjust tension applied to the snappy member, which can be visually observed using the scale. Hence, it is easy for the human operator to attach and replace the snappy member and to replace the backside drumhead with another drumhead in a short period of time.

A device for tension rods or attachment bolts for snare drums. The threaded tension rod or bolt may be a threaded locking bolt. In this way, the vibration caused by use of the drum does not lead to disengagement of the attachment means, or disengagement of the nuts from the tension rods. In these self-locking bolts, tension rods, or fasteners, a portion of the helical screw thread is replaced with a pliant member such as a polymer, and when the fastener is tightened, the polymer friction-fits to the threaded hole within the attachments means or nuts, rendering the fastener difficult to remove.

An apparatus for simulating the playing surface response characteristics of conventional percussion instruments, such as a snare drum, tom-tom, bass drum, cymbals and the like, comprising one or more metal base members with each base member having a top surface and a bottom surface, one or more corresponding percussion pad members with each percussion pad member comprised of a percussion member with an upper playing surface and a bottom surface and a magnetized pad affixed to the bottom surface of each of the percussion members for magnetic coupling with a metal base member. Each of the playing surfaces of a percussion member has response characteristics corresponding to the playing surface characteristic of a particular conventional percussion instrument and each percussion pad is removably positioned relative to each of the metal base members. Also provided is a device for simulating the playing surface response characteristics of a bass drum including a foot pedal, a pedal attachment position forward of the foot pedal, a pad housing, a bass pad removably insertable within the pad housing, a beater assembly with a beater head for striking the bass head, and a beater pad mounted on the beater head.

Drum stands and drum stand baskets, including those for use with a snare drum, are described. Drum stands and drum stand baskets according to the present disclosure can include an adjustment feature which enables the basket to fit differently sized drums. Additionally, drum stands and drum stand baskets according to the present disclosure can include elements which result in less interference with the sound of a snare drum compared to a snare drum in a prior art drum stand. Finally, embodiments of the present disclosure can be compacted for easy storage or transport.