Medical devices and methods of using medical devices are disclosed. An example tissue retraction device includes a first engagement member having a first end and a second end, a second engagement member having a first end and a second end, a first elastic member attached to the second end of the first engagement member, and a first alignment member having a first end, a second end and a lumen extending therethrough. Further, the tissue retraction device has a first length, the first alignment member has a second length, the first elastic member extends within the lumen of the first alignment member and the second length of the first alignment member is less than or equal to the first length of the tissue retraction device.

A surgical stabilizer arm ends with a hybrid quick connect mechanism capable of holding tissue manipulator tools of either the ball type or the shaft type. The single integrated mechanism allows users to choose the type of attachment mechanism they prefer on a case-by-case basis. The mechanism has a spring-loaded sleeve that can be pulled back to enable an attachment (manipulator tool) to be inserted. A ball-style attachment is inserted through an opening in a grip cage, and a shaft-style attachment is inserted into an actuator (e.g., spring detent) through the claws of the grip cage. When the sleeve is released, a compression spring pushed the actuator forward, either pressing the ball attachment against the grip cage or pressing the spring detent against the shaft attachment to partially lock the attachment in place. Tightening a tension cable increases the pressure to fully lock the attachment in place.

The system includes a frame composed of materials and geometry allowing selective deformation in a plane perpendicular to a patient's anatomy at the surgical site but resisting deformation in a plane parallel to the anatomy. The frame is connected to stabilizing features and sheets, which are attached to adhesive to secure the frame to the patient. The features, sheets, and adhesive layers extend both into and beyond the frame. An integrated sheet covers the prospective incision site on the patient. When positioned at the site, the frame conforms to the patient. Anchor points are distributed along the frame to reversibly secure and provide a stable base for surgical retractors, even when unilaterally applied. By adaptable positioning and design of the stabilizing members and adhesive layers on the frame, the system is able to provide optimal tractional stability when experiencing tensile loads in myriad surgical environments including ophthalmic and spinal surgery.

A surgical stabilizer arm ends with a hybrid quick connect mechanism capable of holding tissue manipulator tools of either the ball type or the shaft type. The single integrated mechanism allows users to choose the type of attachment mechanism they prefer on a case-by-case basis. The mechanism has a spring-loaded sleeve that can be pulled back to enable an attachment (manipulator tool) to be inserted. A ball-style attachment is inserted through an opening in a grip cage, and a shaft-style attachment is inserted into an actuator (e.g., spring detent) through the claws of the grip cage. When the sleeve is released, a compression spring pushed the actuator forward, either pressing the ball attachment against the grip cage or pressing the spring detent against the shaft attachment to partially lock the attachment in place. Tightening a tension cable increases the pressure to fully lock the attachment in place.

Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.

The present disclosure relates to the field of tissue dissection. Specifically, the present disclosure relates to medical devices which lift and retract tissue during a dissection procedure to improve visualization of the target tissue and mitigate obstruction of dissection tools. In particular, the present disclosure relates to a tissue retraction device which moves from a constrained to relaxed configuration to immobilize and retract the dissected portion of target tissue during a dissection procedure.

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include an access valve that may be retrieved after implantation. The access valve may include a frame having a lumen, a self-expandable member extending through the lumen, and an elastic membrane extending through the lumen and a second end of the frame to releasably seal the lumen. The access valve may releasably attach to a wall of a patient and releasably seal an opening through the wall. The access valve may be attached to the wall by placing the frame adjacent the wall, extending the self-expandable member through the opening in the wall, and expanding the self-expandable member such that the self-expandable member applies a first force against the wall and a second force opposite the first force against the frame to sandwich the wall between the self-expandable member and the frame.

The present disclosure relates to the field of tissue dissection. Specifically, the present disclosure relates to medical devices which lift and retract tissue during a dissection procedure to improve visualization of the target tissue and mitigate obstruction of dissection tools. In particular, the present disclosure relates to a tissue retraction device which moves from a constrained to relaxed configuration to immobilize and retract the dissected portion of target tissue during a dissection procedure.

The present disclosure generally relates to a table-mounted retractor system for open-spine surgery. The table-mounted retractor system includes a frame, wherein the frame is situated lateral to the patient. The table-mounted retractor system further comprises a plurality of retractor hooks wherein each of the plurality of retractor hooks are in operative association with one of a plurality of tension lines, wherein each of the plurality of tension lines is engaged with the frame. Each one of the plurality of retractor hooks are operable to engage with the flesh of a patient as each of the tension lines pull the flesh back laterally towards the frame along each side of the patient.

Disclosed are various embodiments for an atrial retractor designed to expose the valves of the heart. The device is made in the shape of an interrupted ring with inset legs to reach into the atria. Segments of the ring, legs, and feet may be made of an elastic material to provide force for retraction of tissue to allow the workspace to be accessible for any surgical procedure to the valves.