Abstract:
Embodiments of the present disclosure are directed to implantable sealing devices, delivery apparatuses, and methods of their use, for closing surgical openings or defects in a sidewall of a vessel in a subject. In several embodiments, the disclosed implantable sealing devices, delivery apparatuses, and methods can be used to close a surgical opening in a sidewall of the heart.
Abstract:
A self-dilating cannula for introduction into a patient's vasculature includes an elongate body and an atraumatic tip. The elongate body has a proximal end, a distal end, and a fluid-flow lumen extending therebetween. The atraumatic tip is positioned at the elongate body's distal end and has a blunted end and a conical shape. The atraumatic tip includes a plurality of fluid-flow openings proximal to the blunted nose that are configured to disperse fluid from the fluid-flow lumen in a plurality of directions with respect to the atraumatic tip. The atraumatic tip also includes an opening in the blunted nose that is sized to a guidewire.
Abstract:
Surgical instruments are disclosed. Various non- limiting embodiments may include an elongated shaft (14) that has a distal end portion that is configured to operably support a circular staple cartridge (30) therein. A tissue acquisition shaft may be rotatably supported within said elongated shaft and have a distal portion that protrudes distally beyond the distal end portion of the elongated shaft. At least one tissue acquisition member may be pivotally attached to the distal end portion of the tissue acquisition shaft such that the tissue acquisition members are selectively pivotable from a retracted position to deployed positions upon application of a deployment motion thereto. A rotatable cutting member may be operably supported adjacent to the tissue acquisition member and being selectively rotatable about the central axis upon application of a cutting actuation motion thereto.
Abstract:
A device includes a hollow pipe with a variable diameter is used for medical procedures. Means are provided for reducing the diameter either internally or externally so that the pipe can be inserted into a patient's body through an incision or an opening until the distal end of the pipe reaches a desired position. Thereafter, the diameter of the pipe is increased to allow various surgical devices to be introduced through the pipe.
Abstract:
Access devices (10) and related methods are disclosed that generally involve flexible or adjustable cannulas (14) that have a substantially cylindrical insertion configuration and a substantially conical expanded configuration. Various methods and features are provided for transitioning the cannula from the insertion configuration to the expanded configuration while the access device is inserted through tissue to form a conical opening through the tissue. Examples include cables (15), biasing elements (120), retaining elements (122), bimodal rings (152), and coil springs (219). The devices and methods disclosed herein can allow for improved retention of the access device, improved angulation of instruments passed through the access device, and can increase the integrity of a seal formed between the access device and surrounding tissue.
Abstract:
Medical systems, devices and methods are provided for accessing a bodily opening that, among other things, are safe and reliable, and facilitate manipulation of a medical instrument. The medical access device generally includes an elongated flexible sheath and an expandable frame connected to the distal end of the flexible sheath. The sheath and expandable frame are operable between expanded and collapsed configurations to provide a pathway from a natural orifice to the bodily opening.
Abstract:
A collateral soft tissue protection surgical device protects collateral soft tissue from damage during a surgical procedure within a surgical space of a body. The device comprises an elongated flexible sheath having a proximal end and a distal end. The proximal end has a first opening and the distal end has a second opening. The sheath further comprises a side wall between the proximal and distal ends that defines the first and second openings. The side wall is conformal to the surgical space and arranged to resist perforation by surgical instruments in use during the surgical procedure, and also to define and maintain the access pathway to the surgical site.
Abstract:
A robotic surgical system is configured with rigid, curved cannulas that extend through the same opening into a patient's body. Surgical instruments with passively flexible shafts extend through the curved cannulas. The cannulas are oriented to direct the instruments towards a surgical site. Various port features that support the curved cannulas within the single opening are disclosed. Cannula support fixtures that support the cannulas during insertion into the single opening and mounting to robotic manipulators are disclosed. A teleoperation control system that moves the curved cannulas and their associated instruments in a manner that allows a surgeon to experience intuitive control is disclosed.
Abstract:
Methods and devices are provided to allow the same component used to access a surgical site to assist in closing the surgical opening in which it was disposed. In one exemplary embodiment a flexible retractor (20) is provided that includes proximal and distal ends and a lumen extending therethrough. A wound closure component (140) is associated with the flexible retractor and is configured to engage tissue adjacent to a surgical incision in which the retractor is disposed and move tissue from one side of the surgical incision toward a second side of the surgical incision to assist in closing the surgical incision. In one embodiment the wound closure component includes strands of suture (42) having hooks (44) disposed on a distal end. In another embodiment the wound closure component includes a ring having hooks disposed around a circumference of the ring. Exemplary methods for closing a surgical opening are also provided.