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563 results about "Retractor" patented technology

A retractor is a surgical instrument used to separate the edges of a surgical incision or wound, or to hold back underlying organs and tissues so that body parts under the incision may be accessed. The general term retractor usually describes a simple handheld steel tool possessing a curved, hooked, or angled blade and fitted with a comfortable handle, that when in place maintains the desired position of a given region of tissue. These simple retractors may be handheld, clamped in place, or suspended at the end of a robotic arm. Retractors can also be self-retaining and not need to be held once inserted by having two or more opposing blades or hooks which are separated via spring, ratchet, worm gear or other method. The term retractor is also used to describe distinct, hand-cranked devices such as rib spreaders (also known as thoracic retractors, or distractors) with which surgeons may forcefully drive tissues apart to obtain exposure. For specialized situations such as spinal surgery, retractors have been fitted both with suction and with fiberoptic lights to keep a surgical wound dry and illuminated.

Easily placeable and removable wound retractor

The invention is directed to a surgical wound retractor for retracting and sealing an incision and forming a functional opening or channel through which a surgical procedure may be executed. The wound retractor provides a path for a surgeon to insert his hand and / or instruments through the opening formed by the wound retractor. The wound retractor is sized and configured to be easily placed through a small incision and removed without further insult to the body tissue adjacent to the incision. The wound retractor is adapted to dilate a surgical wound incision to a desired diameter, and comprises a first ring having a diameter greater than the desired diameter of the wound incision and being adapted for disposition interiorly of the wound incision; a second ring having an annular axis and a diameter greater than the desired diameter of the wound incision and being adapted for disposition exteriorly of the wound incision; and a flexible sleeve disposed in a generally cylindrical form between the first ring and the second ring, the first ring having at least one notch to facilitate folding or collapsing of the first ring during insertion and removal of the first ring through the wound incision. The first ring may further comprise a second notch disposed on an opposing end of the first notch to further facilitate folding or collapsing of the first ring. With this aspect, the first ring is folded by squeezing between the first and second notches during insertion and removal of the retractor from the incision. In another aspect, the wound retractor may further comprise a tether having a length, a first end attached to the first ring interiorly of the sheath, and a second end disposed outside of the wound incision, wherein the tether facilitates removal of the first ring by pulling on the second end to retrieve the first ring through the wound incision.

Methods and devices for providing access into a body cavity

Methods and devices are provided for providing surgical access into a body cavity. In one embodiment, a surgical access device is provided that includes a housing coupled to a retractor. The housing can be have one or more movable sealing ports for receiving surgical instruments. Each movable sealing port can include one or more sealing elements therein for sealing the port and / or forming a seal around a surgical instrument disposed therethrough. Each movable sealing port can be rotatable relative to the housing and each sealing element can be rotatable relative to the housing along a predetermined orbital path.

Apparatus and method for connecting a conduit to a hollow organ

An apparatus and method for connecting a first conduit to the heart without the need for cardiopulmonary bypass. The first conduit may then be attached to a second conduit that has a prosthetic device interposed. The second conduit may be connected to the aorta prior to the first conduit being attached to the heart. The prosthetic device may be a prosthetic valve or a pump, for example. The apparatus of the present invention includes an implantable connector with first conduit component, a retractor expansion component, a coring component, and a pushing component. The retractor expansion component is slide-ably coupled to the coring component. The retractor expansion component serves to seat against and separate the inside apical wall of the left ventricle so that the coring component may cut cleanly through the myocardium to form a tissue plug without leaving any hanging attachments to the inside walls. By remaining seated against the inside wall, the retractor expansion component follows the tissue plug into the coring component. The surgeon applies force and rotary motion to the pushing component sufficient to cut the tissue plug and implant the prosthetic component.

Intracardiac sheath stabilizer

ActiveUS8876712B2Avoiding undue traumaCannulasDiagnosticsSurgical siteAortic Valve Annulus
A surgical stabilizer for use with a surgical site retractor has a base, a bendable arm, and a distal cuff adapted to resiliently hold a tube of an elongated port-access device. The cuff may have a body defining a partial enclosure within which is held a highly flexible gasket having a slit for resiliently receiving the tube. The surgical site retractor may have a collapsible ring and a flexible outer portion attached thereto, the ring being sized to pass through an intercostal incision and expand therein under adjacent ribs to prevent removal, and the flexible outer portion extending out of the incision and drawing over the stabilizer base to mutually secure the retractor and base. The port-access tube may be for a heart valve delivery system using an elongated port-access device for transapically delivering a prosthetic heart valve to the aortic valve annulus. A method involves partly installing the surgical site retractor, anchoring the base of the stabilizer with the flexible outer portion, deploying the port-access tube from outside the body through the incision and through a puncture in the heart wall, and resiliently capturing a tube of the port-access within the partial enclosure of the stabilizer cuff. A second bendable arm on the base having a clip may be used to hold still a proximal end of the port-access device.

Bone distractor and method

A bone distractor having four bone plate attachment members for affixation to the posterior and anterior maxilla and / or zygomatic buttress and to the posterior and anterior mandible, the attachment members mounted onto a pair of parallel rods, one rod being a threaded drive rod and the other being a releasable guide rod, whereby rotation of the drive rod causes dimensional separation of the anterior attachment members from the posterior attachment members. The guide rod can be quickly removed such the superior attachment members joined to the maxilla and / or zygomatic buttress are physically separated from the inferior attachment members joined to the mandible such that the jaw can be opened.

Retraction of the Left Atrial Appendage

A clamp is provided for attachment to the left atrial appendage (LAA). The clamp can be locked in a closed position so as to remain in place on the LAA. After being attached to the LAA, the clamp can be moved to a desired position such that the LAA can be retracted to a desired extent. The clamp can be held in any desired position, preferably by being connected to a thoracic retractor that is being used to retract the patient's sternum or ribs. A movable member is connected between the clamp and a stationary portion of the retractor. By locking the movable member in a fixed position relative to the stationary portion, the clamp can be maintained in a desired position and the LAA can be retracted as desired.

Organ manipulator having suction member supported with freedom to move relative to its support

InactiveUS6899670B2Reduce the amount requiredHemodynamic function is not compromisedDiagnosticsSurgical pincettesAdhesive discAbsorbent material
An organ manipulator including at least one suction member or adhesive disc mounted to a compliant joint, a flexible locking arm for mounting such suction member or compliant joint, and a method for retracting and suspending an organ in a retracted position using suction (or adhesive force) so that the organ is free to move normally (e.g., to beat or undergo other limited-amplitude motion) in at least the vertical direction during both steps. In preferred embodiments, a suction member exerts suction to retract a beating heart and suspend it in a retracted position during surgery. As the retracted heart beats, the compliant joint allows it to expand and contract freely (and otherwise move naturally) at least in the vertical direction so that hemodynamic function is not compromised. The suction member conforms or can be conformed to the organ anatomy, and its inner surface is preferably smooth and lined with absorbent material to improve traction without causing trauma to the organ. The compliant joint can connect the member to an arm which is adjustably mounted to a sternal retractor or operating table. The compliant joint can be a sliding ball joint, a hinged joint, a pin sliding in a slot, a universal joint, a spring assembly, or another compliant element. In preferred embodiments, the method includes the steps of affixing a suction member to a beating heart at a position concentric with the heart's apex, and applying suction to the heart while moving the member to retract the heart such that the heart has freedom to undergo normal beating motion at least in the vertical direction during retraction.

Spinal access retractor

A retractor includes a first arm, a second arm, and a translating member. The first arm comprises a proximal portion configured to retain a first retractor member and a distal portion configured to rotate relative to the proximal portion about a first axis. The second arm is configured to retain a second retractor member, such that rotation of the distal portion about the first axis causes the first retractor member to pivot toward or away from the second retractor member when the first retractor member and the second retractor member are coupled to the first arm and the second arm, respectively. The translating member is coupled between the proximal portion and the distal portion, and is configured to receive a drive force that causes the translating member to bias the distal portion to pivot relative to the proximal portion about the first axis.

Surgical restraint system

A retractor system having a tray for receiving a small animal or a portion of a body during surgery. The tray has a notched flange for receiving an elastic member of a surgical stay while a tissue holding member of the stay holds a surgical incision open. The tray also includes a drain and a spout either of which may be used to discharge fluids accumulating during surgery. The system may include a snap-on cover to contain the tray contents when moving the tray. The system may have an inclined, textured bottom member and wall holes for receiving adjustable arms having notched flanges.

Biodegradable tissue retractor

This invention describes novel methods and devices for stabilizing and retracting tissue during surgery, in particular internal tissue. Patches of material, preferably biodegradable, are adhered to tissue surfaces. By manipulation of the patches, for example directly with forceps, or via sutures attached to the patches, tissues can be retracted or otherwise manipulated with minimal trauma to the tissues. The method is especially useful in minimally-invasive surgery.

Three-prong retractor with elastomeric sheath

A three-prong retractor is disclosed which is inserted into an incision in a patient in order to create an area for surgery. The retractor opens such that two blades move away from a first blade to create an elongated opening. The two blades may then move away from each other in a direction that intersects the direction of the movement of the first blade away from the two blades. The ends of the two blades remote from the retractor body may then move away from the end of the first blade remote from the retractor body to further open the incision. The retractor may also have an elastomeric sheath surrounding the blades in order to create a barrier between the surgical area and the patient's skin.

Surgical retractor securing apparatus

A surgical retractor securing apparatus includes an adjustable securing device which attaches the apparatus to the surgical accessory bar of a halo style head fixation device and a capture assembly that releasably engages the elasticized band of a scalp hook retractor. The adjustable securing device compressively grips along a portion the length of a surgical accessory bar or otherwise attaches to an external support, providing a plurality of attachment points. The capture assembly may include a pivotable cam that releasably grips the elasticized band of a scalp hook retractor by compressing the band between the gripping cam and the surgical accessory bar or other external support.

Endoscopic retractor instrument and associated method

An endoscopic retractor instrument assembly includes a balloon having a pair of expandable or inflatable end portions and at least one expandable or inflatable spacer portion connecting the end portions to one another. A fastener is provided for securing the balloon to a distal end of an endoscopic insertion member, with the balloon being disposed in a collapsed configuration along an outer surface of the endoscopic insertion member. An inflation element is operatively coupled with the balloon for enabling an inflating of the balloon from the collapsed configuration to an expanded use configuration in which the spacer portion pushes the end portions apart from one another and in which the balloon extends at least partially in a distal direction away from the distal end of the endoscopic insertion member for spreading internal tissues of a patient to facilitate access to the tissues via the endoscopic insertion member.

Suction retraction surgical instrument

A suction retraction surgical instrument retracts tissue and removes smoke, fluid, debris and other matter from a surgical site. The instrument includes an elongate body having a proximal section, a distal section and a central section. A vacuum or suction channel is defined within the elongate body. The instrument includes a retractor at the distal section of the elongate body. The retractor has an inner surface and an outer surface defining a suction port. The suction port is adapted to remove smoke, blood and other matter from the surgical site. The instrument includes a suction connector at the proximal section of the elongate body. The suction connector is in communication with the vacuum channel. The suction connector is adapted to aid in communication with a vacuum system for removal of smoke, fluid and other matter from the surgical site.
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