262 results about "Knot tying" patented technology

An instrument for arthroscopic suture passing having a shaft with a proximal end and a distal end. A jaw disposed on the distal end has a needle and a hook. The jaw opens and closes with respect to a stationary distal tip of the instrument. A handle disposed on the proximal end manipulates the jaw. A movable suture shuttle is disposed in the distal tip of the instrument. Arthroscopic suture passing takes place by initially loading a length of suture into the suture shuttle, and capturing the suture by moving the suture shuttle away from a position in which it would engage the needle and hook. The needle then is advanced through tissue using the handle to close the jaw against the stationery tip. The suture shuttle then is advanced to load the suture onto the hook. Opening the jaw draws the needle back through the tissue, pulling the suture in a loop through the tissue. A spring arm urges tissue off of the needle. The loop of suture then is available for further suturing or knot tying.

An instrument for surgical suturing includes a shaft, and a needle disposed slidably for longitudinal travel with respect to the shaft. A prong formed on one end of the shaft projects across a longitudinal axis of the needle and has an opening formed through the prong that provides a clearance through which a tip portion of the needle passes when it is advanced. Slots formed on a surface of the prong facing the shaft releasably hold suture across the opening. Advancing the needle through the clearance allows a hook formed on the tip of the needle to capture the suture. Once withdrawn, the needle draws the suture back through tissue pierced during advancement. The suture is released from the slots and drawn back through the tissue for further knot tying and suturing to effect the tissue repairs.

An instrument for surgical suturing includes a shaft, and a needle disposed slidably for longitudinal travel with respect to the shaft. A prong formed on one end of the shaft projects across a longitudinal axis of the needle and has an opening formed through the prong that provides a clearance through which a tip portion of the needle passes when it is advanced. Slots formed on a surface of the prong facing the shaft releasably hold suture across the opening. The suture is held in the slots by passing the suture strands separately back around the sides of the prong, then together up through a channel formed on the prong above the slots, and securing the strands in a pinch slot formed in a handle of the instrument. Advancing the needle through the clearance allows a hook formed on the tip of the needle to capture the suture. Once withdrawn, the needle draws the suture back through tissue pierced during advancement. The suture is released from the slots and drawn back through the tissue for further knot tying and suturing to effect the tissue repairs.

A high strength abrasion resistant surgical suture material with industry standard knot tying characteristics and color marking characteristics includes a core formed of a plurality of twisted fibers of a first material, surrounded by a braided cover made from fibers of a second material different than the first material. The first material is preferably ultrahigh molecular weight polyethylene and the second material is preferably a polymeric material having good knot-tying characteristics.

A suture locking device including an adapter for insertion into a body. The adapter has a proximal end, an open distal end and a lip within the distal end projecting towards an interior of the open distal end. The device further includes a knot tying element releasably attached to the distal end of the adapter. The knot tying element has a distal and a proximal end. The proximal end of the knot tying element has a recess thereon. The proximal end of the knot tying element is inserted within the open distal end of the adapter such that the lip and the recess mate with each other to form a releasable lock.

An instrument and method for suturing wound closures is provided having a handle, shaft and suture engagement mechanism. The instrument provides for multiple placements or “bites” of suture in tissues to enable a wide variety of suturing techniques, including the ability to “run” a suture. The instrument further facilitates suture knot tying. The method of this instrument provides for rapid and effective remote suture placement and knot tying.

Systems and methods for bone to bone, or soft tissue to bone, repairs without knot tying. The repair systems include self-cinching constructs which are tensionable and which include a flexible strand with a knotless, adjustable loop with at least one splice and a shuttle / pull device attached to the flexible strand. A final splice is formed by pulling on the shuttle / pull device subsequent to the knotless, adjustable loop being assembled with or secured to tissue (for example, a soft tissue graft or BTB graft), to allow desired tensioning of the graft to be fixated relative to the bone.

An instrument and method for suturing wound closures is provided having a handle, shaft and suture engagement mechanism. The instrument provides for multiple placements or “bites” of suture in tissues to enable a wide variety of suturing techniques, including the ability to “run” a suture. The instrument further facilitates suture knot tying. The method of this instrument provides for rapid and effective remote suture placement and knot tying.

Apparatus for needle grasping and performing a second modality comprising a sheath axially extending between distal and proximal ends thereof. The device includes an inner hollow tube with a slot formed therein for receiving a needle at the distal end. Retraction and extension of the inner tubular member relative to the sheath enable the grasping and releasing of a suture needle received in the slot. A handle is provided at the proximal end of the apparatus for selectively extending and retracting the inner tube relative to the sheath and for retaining the inner tube in its extended and retracted positions. A second switch can be provided in the handle to actuate a catheter slidably inserted through the inner tube to perform a second therapeutic modality. The catheter preferably includes a distal bight that forms a loop when extended from the distal end of the sheath for facilitating intracorporeal knot tying thereat. The catheter includes a lumen therethrough for receiving suture thread for use at the distal end of the sheath.

An instrument and method for suturing wound closures is provided having a handle, shaft and suture engagement mechanism. The instrument provides for multiple placements or “bites” of suture in tissues to enable a wide variety of suturing techniques, including the ability to “run” a suture. The instrument further facilitates suture knot tying. The method of this instrument provides for rapid and effective remote suture placement and knot tying.

Systems and methods for soft tissue to bone repairs, without knot tying. The soft tissue repair includes the steps of (i) securing first and second knotless fixation devices in bone, wherein the first fixation device is provided with a first loop and a first set of tails extending therefrom, and wherein the second fixation device is provided with a second loop and a second set of tails extending therefrom; (ii) passing one tail of the first fixation device through the second loop of the second fixation device; (iii) passing one tail of the second fixation device through the first loop of the first fixation device; and (iv) securing the first set of tails with a third fixation device and the second set of tails with a fourth fixation device.

Systems and methods for soft tissue to bone repairs, without knot tying. The soft tissue repair includes the steps of (i) securing first and second knotless fixation devices in bone, wherein the first fixation device is provided with a first loop and a first set of tails extending therefrom, and wherein the second fixation device is provided with a second loop and a second set of tails extending therefrom; (ii) passing one tail of the first fixation device through the second loop of the second fixation device; (iii) passing one tail of the second fixation device through the first loop of the first fixation device; and (iv) securing the first set of tails with a third fixation device and the second set of tails with a fourth fixation device.

A device for holding open and facilitating the filling of a trash bag with leaves, grass, debris or the like is provided. The device is comprised of a frame including a top wall, a bottom wall and at least one set of opposite side walls, and further including entry and exit ends having a hollow interior area extending therebetween. The sidewalls are provided with holes therethrough proximate entry end, the holes having corresponding slits. The frame is configured to receive on its exit end a specially configured trash bag having two knots tied within the opening edge of the bag. The bag is placed upon the exterior of the exit end of the frame and pulled toward entry end so that the knots of the bag line up with the holes in the sidewalls. The knots are pulled through the holes and retained in the corresponding slits such that the bag is securely retained on the frame which maintains the bag in a fully open position on the ground or floor surface so as to facilitate sweeping or raking grass, leaves, garbage and other debris or the like into the bag. The frame is also provided with a handle to facilitate holding and transporting the frame.

An instrument for arthroscopic suture passing having a shaft with a proximal end and a distal end. A jaw disposed on the distal end has a needle and a hook. The jaw opens and closes with respect to a stationary distal tip of the instrument. A handle disposed on the proximal end manipulates the jaw. A movable suture shuttle is disposed in the distal tip of the instrument. Arthroscopic suture passing takes place by initially loading a length of suture into the suture shuttle, and capturing the suture by moving the suture shuttle away from a position in which it would engage the needle and hook. The needle then is advanced through tissue using the handle to close the jaw against the stationery tip. The suture shuttle then is advanced to load the suture onto the hook. Opening the jaw draws the needle back through the tissue, pulling the suture in a loop through the tissue. A spring arm urges tissue off of the needle. The loop of suture then is available for further suturing or knot tying.

A knot tying training apparatus (2) comprising at least one knot tying element (4a, 4b) around which a knot may be tied in use of the apparatus (2), one or more sensing devices (10, 16) associated with the or each knot tying element (4a, 4b) for generating a signal in response to a knot being tied around the or each knot tying element (4a, 4b) and a feedback presentation device (220) in communication with the one or more sensing devices (10, 16) for providing feedback to a user.

A tool for use in placing sutures and tying knots is disclosed. The tool has a handle for grasping by a user of the tool, an elongate neck extending from the handle, and a moveable head attached to the neck. A needle is operatively connected to the head. The needle is moveable between a retracted position and an extended position. A needle drive mechanism is provided for moving the needle relative to the head, while a head positioning mechanism is provided for moving the head relative to the handle.

A knot tying device for tying knots including an inner rod having a longitudinal slot extending between the two open ends from an outer diameter to a hollow center. An hollow cylinder is disposed on the inner rod and has a longitudinal slot extending between the two open ends from an outer diameter to a hollow center. A cord clamp is formed between the hollow cylinder and the inner rod, and secures a cord to an end of the outer hollow cylinder. A cord winding cylinder is rotatably disposed on the inner cylinder and has a cord catch and a longitudinal slot extending between the two open ends from an outer diameter to a hollow center. The cord catch can catch a cord secured by the cord clamp and can wind the cord around the outer hollow cylinder.

A method of attaching a knotting element to a suturing device including the steps of providing an adapter for insertion into a body, the adapter having a proximal end and an open distal end. Providing a knot tying element for tying suture together. Releasably attaching the distal end of the adapter to the knot tying element by inserting a proximal end of the knot tying element into the open distal end of the adapter and thereafter rotating the knot tying device with respect to the adapter.

An article of jewelry is disclosed wherein a stretchable filament is threaded through or otherwise attached to a desired number of ornaments and maintained in loop form by a knot tied in the filament. The filament is formed of a material that may be stretched between two extremes: a minimally stretched length and a fully stretched length. The filament further has a relaxed length that is less than the fully stretched length. The filament is selectively adjustable in that the relaxed length may be adjusted upward but not downward. Also disclosed is a method for tying a symmetric, sturdy knot in the stretchable filament that includes the step of simultaneously pulling with substantially equal force on each of the trailing ends exiting the knot in such a way that a portion of the filament including the knot is stretched to or almost to its fully stretched length.

The invention discloses an intelligent kelp automatic knot tying machine, which comprises a base, and an automatic feeding mechanism, a knot tying feeding mechanism, an enwinding mechanism, a knot tying mechanism, a material cutting mechanism and a PLC microcomputer control system controlling the interworking of the mechanisms, which are arranged on the base. The automatic feeding mechanism is provided with a first camping jaw. The knot tying feeding mechanism is provided with a second clamping law. The material cutting mechanism is provided with a cut-off tool. The knot tying mechanism is provided with a third clamping jaw. The enwinding mechanism is provided with a fourth clamping jaw. Under the control of the PLC microcomputer control system, the mechanisms interwork, replace manpower and complete a series of kelp knot tying processes of feeding material, enwinding, clamping, cutting, feed-in, tying knot, stripping material and the like. Consequently, the knot tying efficiency of the kelp is improved greatly, the knot typing quality of kelp knots is ensured and the complex mechanical transmission mechanism is avoided. The invention has the advantages of reasonable structure, high efficiency, low fault rate, convenient adjustment and extensive use foreground.

A balloon knot tying device that has a base with dual rods provided for stretching the leading end of an inflated balloon around to assist in tying a permanent knot. Each rod having at least two diameters to provide a retaining edge so the balloon will not slide down onto the base during the knot tying operation. The base with dual rods can be attached to different holding devices such as a ring shaped device for inserting at least 1 finger or a handle shaped device for gripping. The knot tying operation consisting of holding the balloon against the side of the device and stretching the leading end around the rods to form a loop. The leading end is then crossed under the loop through a relief area and up between the two rods. The leading end is then pulled off of the rods to form a permanent knot.

A device for precisely spacing knots in a string that includes: a generally flat, rectangular board; a centered post projecting outwardly of and generally perpendicular to the board and for enabling tying the free end of the string about the post and enabling forming knots in the string upon tightening of same; and, a plurality of selectable measurement points on the board, aligned longitudinally, transversely of the board and extending outwardly from the post in equi-distantly spaced relation and for enabling positioning a predetermined point along the string at one of the selectable measurement points, the spacing between the string predetermined point and a knot formed at the post being determined by the spacing between the post and the selected measurement point. In use, a pre-determined point along the string is placed on the board at one of the selectable measurement points. The free end of the string is tied about the post. The free end of the string is pulled tightly to form a knot at the post. The spacing between the string predetermined point and the knot formed at the post is determined by the spacing between the post and the selected measurement point. The method is used in forming jewelry by interspersing beads between knots whose positions have been pre-selected, using the device and technique previously set forth.

Systems and methods for bone to bone, or soft tissue to bone, repairs without knot tying. The repair systems include self-cinching constructs which are tensionable and which include a flexible strand with a knotless, adjustable loop with at least one splice and a shuttle / pull device attached to the flexible strand. A final splice is formed by pulling on the shuttle / pull device subsequent to the knotless, adjustable loop being assembled with or secured to tissue (for example, a soft tissue graft or BTB graft), to allow desired tensioning of the graft to be fixated relative to the bone.

A plurality of twine tensioner arms are mounted at evenly spaced locations across the baling chamber of a large square baler for pivoting vertically, against a yieldable bias, between upper and lower extreme positions. Each tensioner arm carries a tensioned twine strand associated with a double-knot tying device. A rotary potentiometer is coupled, by a follower arm, for sensing pivotal movement of each tensioner arm and sends out a corresponding electrical signal to an electronic controller which processes the sensed arm position together with other stored information and sends out a signal for energizing a display showing the relative positions of the arms and / or for energizing a warning device for apprising an operator that a mistie has occurred, is about to occur or that a twine tensioner setting has to be changed.

A lace or draw string fastening system can include a clamping unit and a capture element. The clamping unit can clamp onto the laces, such as shoe laces, to tighten the shoes and the capture element can capture and contain the free ends of the laces that extend from the clamping unit to prevent tripping by securing them to other portions of the laces or the article that houses the laces. The fastening system can be used in a shoe lace fastening system without the need for knot tying. The clamping unit can clamp the laces together at the top of the shoe to hold the laces tight while the capture element can contain or secure the free ends of the shoe lace to the shoe or the laces adjacent the toe to prevent tripping.