325 results about "Orthodontic ligature" patented technology

An endoscopic treatment system is designed to suture or resect a lesion while ensuring the ease of insertion into a deep region in the large intestine. The endoscopic treatment system comprises an endoscope and a therapeutic instruments insertion aid into which the endoscope is inserted. The endoscopic treatment system further comprises: a pair of clamp forceps that clamps and lifts a living-body tissue; a lateral hole formed in the therapeutic instruments insertion aid and used to control the position of the living-body tissue clamped and lifted by the pair of clamp forceps or to control the lifting thereof; a ligature used to ligate the living-body tissue whose position or lifting is controlled by the lateral hole; and a cutter used to resect the living-body tissue at a position between a region ligated with the ligature and a region clamped and lifted with the pair of clamp forceps.

A medical device for treating a heart having a faulty heart valve is disclosed. The medical device comprises a ligature including a first anchoring member and a second anchoring member is used. The ligature is percutaneously deployable into a patient with a faulty heart valve wherein the first anchoring member to anchor to a first tissue area of the heart and the second anchoring member to anchor to a second tissue area of the heart.

An orthodontic bracket has at least one tiewing and a groove behind the tiewing for receiving a ligature. The groove extends along a path that is inclined in a direction away from an archwire slot of the bracket as a central, upright reference plane bisecting the bracket is approached. In addition, the depth of the groove decreases as the reference plane is approached. Preferably, an outermost edge of at least one tiewing is inclined in a direction away from the archwire slot as the adjacent side of the bracket is approached. The tiewing is less likely to fracture during the course of orthodontic treatment, and yet the ease of ligation is not compromised.

The invention describes is a self-ligating bracket for use in orthodontics having a base (1); a support (4) arranged on the base (1); an occlusal wall (6) with at least one occlusal ligature wing (9) extending from the support (4); a gingival wall (5) with at least one gingival ligature wing (8) extending from the support (4); a slot (7) separating the occlusal wall (6) and the gingival wall (5) one from the other and extending continuously in the mesial-to-distal direction; a second slot (18) which extends continuously through the support (4) in the gingival-to-occlusal direction, and which is limited by a lingual surface (19) and by a labial surface (6a); and a resilient clip (25) having a labial leg (27) and a lingual leg (26) that are connected one to the other by an occlusal section (28); the lingual leg (26) being received in the second slot (18) and being arranged for displacement in the slot in the gingival-to-occlusal direction between a closed position in which the labial leg (27) extends into a recess (24) in the gingival wall (5) and an open position of the clip (25) in which the tip of the labial leg (27) rests on the occlusal wall (6). A tongue (30), directed toward the occlusal wall (6), is cut out from the lingual leg (26) of the clip (25) and is bent off in the labial direction so that an acute angle is enclosed between the tongue and the lingual leg (26) of the clip (25).

A novel catheter-based system which ligates the left atrial appendage (LAA) on the outside of the heart, preferably using a combination of catheters and / or instruments, e.g., a guide catheter positioned inside the left atrial appendage which may assist in locating the left atrial appendage and / or assist in the optimal placement of a ligature on the outside of the appendage, and a ligating catheter and / or instrument outside the heart in the pericardial space to set a ligating element at the neck of the left atrial appendage.

A device is provided to assist in closing an incision through body tissue that comprises a tubular body sized for introduction through the incision and carrying a plurality of stabilizer elements at the distal end thereof. The stabilizer elements are configured to be deployed within the body cavity to engage the lowermost tissue layer. In one method, the device is pulled with the stabilizer elements deployed to retract the body tissue away from adjacent body structure. In another method, a plurality of needle tips carrying sutures are guided through the body tissue to a retention device at the ends of the stabilizer elements. With the needle tips captured in the retention devices, the device is withdrawn from the incision so that the sutures form ligatures that can be tied off to close the incision.