33 results about "Wound retractor" patented technology

A surgical wound retractor comprises a retracting member for insertion into a wound opening and a proximal member for location externally of a wound opening A clamp is used to clamp the retracting member to the proximal member.

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.

A surgical access device includes a single valve that forms a seal with a body wall and provides an access channel into a body cavity. The valve has properties for creating a zero seal in the absence of an instrument as well as an instrument seal for an instrument having a diameter up to about 37 mm. The valve can include a gel material and the access channel can include a protective sleeve to provide for wound protection during insertion and withdrawal of a sharp surgical instrument. The valve further comprises a cap ring which may be inserted or molded with the gel material. The protective sleeve may be bonded or molded around an inner diameter of the cap ring. The protective sleeve may be a single tubular member, or may comprise a plurality of axially extending sleeve members having a plurality of axial slits. The protective sleeve and the cap ring may comprise of the same or different materials. The surgical access device further comprises at least one support ring disposed circumferentially of the valve forming a hollow space, and a wound retractor operatively placed in the hollow space. The wound retractor includes an inner ring, an outer ring, and a flexible sleeve connecting the inner ring and the outer ring.

A surgical access device includes a single valve that forms a seal with a body wall and provides an access channel into a body cavity. The valve has properties for creating a zero seal in the absence of an instrument as well as an instrument seal for an instrument having a diameter up to about 37 mm. The valve can include a gel material and the access channel can include a protective sleeve to provide for wound protection during insertion and withdrawal of a sharp surgical instrument. The valve further comprises a cap ring which may be inserted or molded with the gel material. The protective sleeve may be bonded or molded around an inner diameter of the cap ring. The protective sleeve may be a single tubular member, or may comprise a plurality of axially extending sleeve members having a plurality of axial slits. The protective sleeve and the cap ring may comprise of the same or different materials. The surgical access device further comprises at least one support ring disposed circumferentially of the valve forming a hollow space, and a wound retractor operatively placed in the hollow space. The wound retractor includes an inner ring, an outer ring, and a flexible sleeve connecting the inner ring and the outer ring.

A wound protector and retractor device comprising a longitudinal axis, a distal member, a proximal member, and a sleeve extending at least between the distal member and the proximal member. The sleeve has a proximal gripping portion for pulling the sleeve upwardly to shorten an axial extent located between the distal member and the proximal member.

In one embodiment, a wound retractor includes a plurality of straps connected between an inner ring and an outer ring assembly. The inner ring is positioned internal of the wound so that it rests against the innermost tissue layer, and the outer ring is located outside of the wound adjacent the outermost tissue layer. The outer ring assembly includes an inner ring having guide holes for the passage of the straps and an outer ring to which the straps are affixed. Rotation of the outer ring of the outer ring assembly relative to the inner ring of the outer ring assembly results in a shorting of the effective length of the straps, retraction of the wound edge and exposure of the wound site.

An incrementally adjustable wound retractor (100), having a first ring (102) with a diameter greater than the desired diameter of the wound incision. A second ring (104), having an annular axis and a diameter greater than the desired diameter of the wound incision. A flexible sleeve (106), disposed in a generally cylindrical form between the first and second rings (102, 104), the second ring may be rolled over itself and around the annular axis to provide a sleeve with a radical retraction force sufficient to stretch the incision to the desired diameter.

A wound retractor (320) comprises a distal ring (3) for insertion through a wound opening (6), a proximal ring (4) for location externally of the wound opening (6), a valve (10) mounted to the proximal ring (4), and a sleeve (2) for retracting laterally the sides of the wound opening (6). The wound retractor (320) also comprises a flexible release member (81) for releasing the distal ring (3) from a retracting configuration for removal of the distal ring (3) from the wound opening (6). A first end (301) of the release member (81) is attached to the valve housing (102), the release member (81) loops around the distal ring (3), and a second end (302) of the release member (81) is movable relative to the proximal ring (4) to release the distal ring (3) from the retracting configuration.

A wound retractor system comprises a retractor having a distal ring 91 and a retracting sleeve 4 extending from the ring. An insertion tool 120 has a distal groove 122 to hold the ring for insertion of the ring through a small incision 90 in the abdominal wall 97. The retractor may be used for retracting an incision to receive an instrument therethrough. A seal or valve may be mounted to the retractor through which an instrument can pass.

A wound protector and retractor device comprising a longitudinal axis, a distal member, a proximal member, and a sleeve extending at least between the distal member and the proximal member. The sleeve has a proximal gripping portion for pulling the sleeve upwardly to shorten an axial extent located between the distal member and the proximal member.

Devices, methods, and systems provide a surgical access device comprising an internal retractor device integrated with or coupled to a body wall or wound retractor. The wound retractor retracts an opening in a body wall into a body cavity, while the internal retractor permits a user to control the positions of internal structures within the body cavity, thereby permitting a user to define a surgical field. Embodiments of the internal retractor are adjustable.

A wound retractor (320) comprises a distal ring (3) for insertion through a wound opening (6), a proximal ring (4) for location externally of the wound opening (6), a valve (10) mounted to the proximal ring (4), and a sleeve (2) for retracting laterally the sides of the wound opening (6). The wound retractor (320) also comprises a flexible release member (81) for releasing the distal ring (3) from a retracting configuration for removal of the distal ring (3) from the wound opening (6). A first end (301) of the release member (81) is attached to the valve housing (102), the release member (81) loops around the distal ring (3), and a second end (302) of the release member (81) is movable relative to the proximal ring (4) to release the distal ring (3) from the retracting configuration.

A surgical apparatus for positioning within a tissue tract accessing an underlying body cavity adapts to tissue tracts of different widths. The surgical instrument includes a proximal member, a distal member, and a sleeve extending between the proximal member and the distal member and defining a longitudinal passage therein. The proximal member includes an inflatable member that selectively adjusts the radial dimension of the proximal member. A ring member may be separately insertable by a user during a surgical procedure into the space directly adjacent to the radially-inner surface of the inflatable member, so as to selectively provide rigidity to the proximal member.

The invention discloses a vertical cable uniform take-up device, which comprises a motor arranged above and a bearing seat corresponding to the motor arranged below, the motor head of the motor is arranged vertically downward, and the motor and the bearing A take-up shaft is installed between the seats, and an upper frame plate and a lower frame plate are installed on the upper and lower ends of the take-up shaft; and two lifters are correspondingly installed on the lower frame plate. When the present invention is used, when the motor is turned on and rotated, the upper and lower frame plates and the lifting plate will rotate accordingly, and the positioning sleeve will not rotate accordingly; while the lifter is turned on while the motor is rotating, the lifter will drive the lifting plate Move up and down, so as to drive the positioning sleeve to move up and down, and the upper moving sleeve will also move up and down at the limit line of the sleeve rod. The cable passes through the positioning sleeve, and moves up and down with the positioning sleeve so that it can be evenly wound It is rolled on the take-up shaft, thus realizing the uniform take-up function of the vertical cable take-up machine.

A surgical apparatus for positioning within a tissue tract accessing an underlying body cavity adapts to tissue tracts of different widths. The surgical instrument includes a proximal member, a distal member, and a sleeve extending between the proximal member and the distal member and defining a longitudinal passage therein. The proximal member includes an inflatable member that selectively adjusts the radial dimension of the proximal member. A ring member may be separately insertable by a user during a surgical procedure into the space directly adjacent to the radially-inner surface of the inflatable member, so as to selectively provide rigidity to the proximal member.

A retractor / protector suitable for use in a surgical incision or a natural orifice comprises a longitudinal axis defining an instrument access channel extending from a proximal end to a distal end; an outer ring; an inner ring; and a flexible sheath extending between the outer ring and the inner ring, wherein the instrument access channel extends through the outer ring, the inner ring, and the sheath, and the inner ring is non-circular, non-coplanar and / or non-parallel. Embodiments of the retractor / protector are described that have inner rings of a variety of non-circular or non-coplanar shapes that are insertable through small incisions or orifices, minimize space occupied and maintain a strong anchor and effective retraction.

A wound retractor comprising an outer ring, an inner ring, and a flexible sheath extending therebetween is described, wherein the inner ring has the strength, rigidity and bounce back characteristics of a solid injection-molded ring yet is manufactured by extrusion techniques described herein with a 20-30% reduction in materials, resulting in reduced manufacturing costs.

A wound retractor and a specimen bag are disclosed. A surgical apparatus for positioning within a tissue incision to access an underlying body cavity and remove a tissue specimen therefrom includes a wound retractor having a specimen bag attached thereto. The wound retractor includes a proximal ring, a distal ring, and a film extending therebetween defining a longitudinal passage therethrough. The specimen bag is attached to the distal ring of the wound retractor and permits placement of a tissue specimen to be removed from the body therein.

The present disclosure provides a wound retractor and specimen bag assembly. The surgical device of the present disclosure includes a wound retractor having a specimen bag attached thereto. A wound retractor includes a proximal ring, a distal ring, and a membrane extending therebetween. The specimen bag is attached to the distal ring of the wound retractor. Kits of the present disclosure include a surgical device and a wound shield. The wound shield is introduced into the lumen of the wound retractor when the tissue sample to be removed from the patient is too large to pass through the incision or wound. Next, a mechanical device such as a scalpel or morcellator can be introduced into the lumen of the wound shield and manipulated about the wound shield to break up the tissue sample without damaging the specimen bag or the wound retractor. Methods of using the surgical devices and kits of the present disclosure are also provided.

A surgical port includes an end face with a channel extending through the end face. The channel has a cross section shaped to receive a surgical instrument cannula. A lateral wall extends around a perimeter of the end face. The lateral wall and end face enclose an open volume. A rim extends radially inward from the lateral wall and projects into the open volume. An apron portion extends radially outward from the lateral wall and in a direction axially away from the end face. Surgical systems may include surgical ports. Methods relate to using surgical ports.

The application discloses a medical device for a surgical procedure, and particularly relates to a procedure for manipulating a surgical instrument end effector near a skin surface at an incision site. In accordance with some embodiments, an instrument access device is configured to couple to a wound retractor at a distal end of the device and receive a multi-instrument access guide in a port at a proximal end of the instrument access device with a cuff between the distal end and the proximal end defining a sealed cavity for maintaining inflation pressure. Various embodiments provide an apparatus for rotating an auxiliary port in an envelope about a port that receives an instrument access guide without twisting the envelope. Various envelope shapes are also disclosed. An instrument entry guide to align a surgical instrument shaft is also disclosed.

A surgical port includes an end face with a channel extending through the end face. The channel has a cross section shaped to receive a surgical instrument cannula. A lateral wall extends around a perimeter of the end face. The lateral wall and end face enclose an open volume. A rim extends radially inward from the lateral wall and projects into the open volume. An apron portion extends radially outward from the lateral wall and in a direction axially away from the end face. Surgical systems may include surgical ports. Methods relate to using surgical ports.

The application discloses a medical device for a surgical procedure, and particularly relates to a procedure for manipulating a surgical instrument end effector near a skin surface at an incision site. In accordance with some embodiments, an instrument access device is configured to couple to a wound retractor at a distal end of the device and receive a multi-instrument access guide in a port at a proximal end of the instrument access device with a cuff between the distal end and the proximal end defining a sealed cavity for maintaining inflation pressure. Various embodiments provide an apparatus for rotating an auxiliary port in an envelope about a port that receives an instrument access guide without twisting the envelope. Various envelope shapes are also disclosed. An instrument entry guide to align a surgical instrument shaft is also disclosed.

The invention discloses an incision distraction device for minimally invasive surgery, and belongs to the technical field of minimally invasive surgery, the incision distraction device comprises a C-shaped distraction ring, the surface of the C-shaped distraction ring is slidably connected with a positioning mechanism, the surface of the positioning mechanism is fixedly connected with a wound retraction adjusting device, the inner end of the wound retraction adjusting device is fixedly connected with a wound retraction device, and the wound retraction device is fixedly connected with a wound retractor. The fixing block is arranged above the C-shaped opening ring, the limiting block is slidably connected to the inner wall of the fixing block, the pull rod is fixedly connected to the upper surface of the limiting block, and the sliding groove is formed in the side wall of the limiting block. A fixing block is arranged on the upper surface of a sliding block sliding on the surface of the C-shaped distraction ring, a limiting block is connected with a pull rod and slidably ascends and descends in the fixing block, a limiting gear is clamped in a limiting groove formed in the lower surface of the limiting block, and the limiting gear is connected with a positioning gear meshed in a gear groove formed in the surface of the C-shaped distraction ring through a linkage rod. And the fixed block can be conveniently controlled to be fixed and slide on the surface of the C-shaped distraction ring.

The invention relates to the technical field of medical instrument production, and discloses a retractor structure for neurosurgery department, and the retractor structure comprises a guiding part body, the guiding part body is specifically of a rounded rectangular frame structure, a plurality of bending parts are arranged along the frame, and the guiding part body is bent with the bending parts as the axis and attached to the occipital bone, the parietal bone and the spine of a patient, and the outer wall of the guiding part body is connected with a locking part in a sliding manner, and the locking part is assembled to enable a movably mounted pull hook edge to be distributed at any angle and pull a notch. According to the retractor structure for the neurosurgery department, the design of a conventional wound retractor is abandoned, the device can be conveniently attached to the wound part of a patient through the multi-modular guiding part body, a pulling hook can guarantee the pulling angle and the opening degree of the wound by changing the angle of the pulling hook, a visual field clear enough is guaranteed in the surgery, and an illumination lamp arranged on the pulling hook can ensure that the interior of the wound is bright enough.