US20060149306A1 - Sealed surgical access device - Google Patents
Sealed surgical access device Download PDFInfo
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- US20060149306A1 US20060149306A1 US11/330,661 US33066106A US2006149306A1 US 20060149306 A1 US20060149306 A1 US 20060149306A1 US 33066106 A US33066106 A US 33066106A US 2006149306 A1 US2006149306 A1 US 2006149306A1
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- United States
- Prior art keywords
- retention member
- access device
- membrane
- retention
- surgical
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- 238000002357 laparoscopic surgery Methods 0.000 description 10
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Images
Classifications
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
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- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
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- A61B17/34—Trocars; Puncturing needles
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
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- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
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- A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
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Abstract
Description
- This is a non-provisional application claiming the priority of provisional application Ser. No. 60/241,953 filed on Oct. 19, 2000, entitled “Hand-Assisted Laparoscopy Apparatus and Method”, as well as the PCT application serial no. PCT/US01/29682, filed on Sep. 21, 2001, and entitled “Surgical Access Apparatus and Method,” both of which are fully incorporated herein by reference.
- 1. Field of Invention
- This invention relates generally to surgical access devices, and more specifically to access devices adapted for use in minimal invasive surgery to provide sealed instrument access across a body wall and into a body cavity.
- 2. Discussion of Related Art
- Surgical access to a body cavity, such as the abdominal cavity, is referred to as “open laparotomy” or “closed laparoscopy.” An open procedure involves an incision of sufficient size to allow a surgeon to place hands and instruments within the surgical site. In addition, the site must be open enough for the surgeon to clearly see what he or she is doing. There is often a need for multiple retractors, clamps, and sponges. All of these devices compete for room within the surgical site.
- Laparoscopic or closed surgery eliminates many of the issues surrounding open laparotomy. In a typical pressurized laparoscopy, the abdominal wall is punctured and at least one trocar is inserted into the peritoneum. Gas is introduced into the abdominal cavity and to elevate the abdominal wall away from the internal organs. This results in a large, clear operating field. Additional trocars can be inserted as needed for various procedures. A laparoscope is used to provide visualization of the surgical site. The instrumentation for laparoscopic procedures has developed prolifically in recent years and the surgeons have become comfortable with a “remote-control” approach to various aspects of surgery. Cutting, dissecting, cauterizing, stapling and suturing have all been addressed by laparoscopic device manufacturers.
- Despite the many advantages of laparoscopic surgery, there remain a few complex procedures that make laparoscopy difficult or risky. In some of these cases, a hybrid procedure makes the most sense. If one could have the visibility and open field of a laparoscopic procedure and the control of an open procedure, one would truly have it all. However, the two modalities tend to obviate each other. Indeed, there are some who would argue that the advances of laparoscopy would be in vane if an open procedure were added as a default.
- In recent years, a few enterprising surgeons have advanced a method that they call “hand-assisted” laparoscopy or “handoscopy.” This involves placing one of the surgeon's hands inside the patient through an enlarged incision, while under laparoscopic visualization. With no protruding instrumentation normally used in closed laparoscopy, it is not required to perform overly challenging maneuvers
- The challenge now facing the surgeon in this procedure is providing an adequate sealing means within the enlarged incision. The surgeon's hand must be comfortable, properly placed and free to move with a normal range of motion. In addition, the surgeon should be able to remove and replace his/her hand into the abdominal cavity without loss of pneumoperitoneum.
- Several devices have been proposed in an attempt to satisfy the requirements of the “handoscopist.” They generally involve an elastomeric seal that fits through an incision and is held in place by retention means on either or both sides of the abdominal wall. The devices are generally complex and require several steps to place. One of the devices requires an adhesive to be placed on the exterior abdominal wall (skin) as the seal is adhered to the skin. This requires not only application of the adhesive but also a drying time. Allergic reactions and other complications must be considered when using this product. Another device makes use of a “toroidal balloon” that inflates to position the device and seal the incision. The surgeon must overcome the friction and sealing pressure of this device when inserting and withdrawing his/her hand from the surgical site. A further device involves the use of a built-in glove or sleeve. This arrangement diminishes the range of motion and the tactile sensation of the hand.
- U.S. Pat. No. 5,848,992 discloses a surgical access device that allows the conversion of an open procedure to a laparoscopic procedure. In addition, the '992 patent discloses the use of such a device in a case where a large organ is to be removed. In this instance, an incision of adequate size is made initially and sealed with the device at the same time the trocars are being inserted
- Notwithstanding these proposed devices, there remains a continuing need for a surgical access device that provides a flexible, simple and complete seal within an incision of adequate size for introduction of a human hand.
- The present invention satisfies the requirements of a surgical access device for use with surgical instruments including the surgeon's hand. With this access device, “hand-assisted” laparoscopy is greatly facilitated within a closed surgical environment.
- The present invention makes use of an internal retention member and an external retention member connected by a flexible, lubricious material. At least one of the retention members is tensionable to provide adequate stability to the incision site.
- The present invention also provides a sealing portion that allows the largest range of hand motion without leakage of insufflation gas. The seal is formed of a material that responds well to the presence of glove material such as Natural Latex, Poly-isoprene, Nitrile, Vinyl or Polyurethane.
- In one aspect of the invention, the surgical access device is adapted to facilitate access through an incision in a body wall having an inner surface and an outer surface, and into a body cavity of a patient. The device includes a first retention member configured to surround the incision in proximity to the outer surface of the body wall. A second retention member is configured to surround the incision in proximity to the inner surface of the body wall. A membrane extending between the first retention member and second retention member forms a throat adapted for disposition through the incision. A first funnel extends from the first retention member into the throat and a second funnel extends from the second retention member into the throat. The throat of the membrane has characteristics for forming an instrument seal in the presence of an instrument, any zero seal in the absence of an instrument.
- In another aspect of the invention, the first retention member comprises a ring having a first section with a first end and a second end, and a second section with a third end moveable relative to the first end to the first retention member and a fourth end moveable relative to the second end of the first retention member. A coupling is disposed between the first end of the first retention member and the third end of the second retention member. This coupling is operable to vary the distance separating the first end and the third end to control the shape of a working channel formed by the membrane. A second coupling or a hinge may be provided between the second end of the first retention member and the fourth end of the second retention member.
- In a further aspect of the invention, the first retention member has a shape that is variable to control the shape of the working channel formed by the membrane. The first retention member can be formed as an inflatable structure such as a toroid. The first retention member may also include self expanding foam for a circumferential spring.
- In still a further aspect of the invention, a surgical access device can include a plurality of inflatable chambers each extending in a plane passing through the axis of the device. These chambers collectively define a working channel that is adapted for disposition across the body wall. The chambers may have a straight or U-shaped configuration.
- In another aspect of the invention, the device includes a first retention member including a ring with a plurality of retention stations. The membrane is attached to a plurality of tethers that can be coupled to the ring at an associated one of the retention stations to provide the membrane with a desired shape.
- In still a further aspect of the invention, a stabilizing platform is proposed to support the access device generally independent of any movement associated with the body wall.
- These and other features and advantages of the invention will become more apparent with a description of preferred embodiments in reference to the associated drawings.
-
FIG. 1 is a side view drawing of a surgical patient in a laparoscopic procedure; -
FIG. 2 is a front view drawing of a surgical patient in a “hand-assisted” surgical procedure; -
FIG. 3 is a front view drawing of a preferred embodiment of the present invention in place; -
FIG. 4 is an oblique view drawing of the present invention showing two retention members; -
FIG. 5 is an oblique view drawing of the invention in an alternate embodiment; -
FIG. 6 shows the present invention having an alternate exterior retention member; -
FIG. 7A illustrates a folded retention member of the present invention in a closed condition; -
FIG. 7B illustrates the folded member in an opening condition; -
FIG. 7C shows the folded member in a half open condition; -
FIG. 7D shows the folded member in a fully open condition with the seal material tensioned; -
FIG. 8A illustrates an alternate embodiment of the folded retention member closed; -
FIG. 8B illustrates the alternate embodiment partially open; -
FIG. 8C shows the half open retention member having a transverse seal opening; -
FIG. 8D shows the transverse seal opening fully tensioned along its length; -
FIG. 9 shows an adjustable external retention member opening the seal portion; -
FIG. 10 shows the adjustable retention member with a seal portion under minimum tension; -
FIG. 11 illustrates an adjustable retention having a hinge and jackscrew combination; -
FIG. 12 shows the hinge and jackscrew placing opening tension on the seal member; -
FIG. 13 shows the retention member having two jackscrew adjustments and having the seal member in a transverse position and under minimum tension; -
FIG. 14 shows the retention member where the seal member is under maximum tension; -
FIG. 15 illustrates an embodiment of the retention member wherein the tensioning of the seal member is provided by detente folding spacers; -
FIG. 16 shows the detente spacers in an over-center or locked position and applying tension to the seal member; -
FIG. 17 is an oblique view of the external retention member having a ratchet for holding the seal member at a preferred tension; -
FIG. 18 illustrates an alternate embodiment of the present invention wherein the external retention member is an un-inflated but inflatable or fillable hollow torrus; -
FIG. 19 shows the inflatable retention member fully inflated and tensioning the sealing member to provide sealing pressure; -
FIG. 20 illustrates the present invention having two un-inflated but inflatable retention members and the seal member at minimum tension; -
FIG. 21 shows the two inflatable retention members fully inflated and the seal member fully tensioned; -
FIG. 22 illustrates an alternate embodiment of the present invention where the un-inflated retention members and the seal portion are integrally formed of connected tubular segments; -
FIG. 23 shows the alternate embodiment in an inflated condition and shaped as would be the case if the device were inserted within a surgical incision; -
FIG. 24 illustrates an alternate embodiment wherein the external retention member is a coil spring; -
FIG. 25 illustrates the alternate embodiment wherein the external and the internal retention members are coil springs; -
FIG. 26 illustrates an alternate embodiment of the present invention wherein a strap is used to maintain a position over a surgical incision; -
FIG. 27 illustrates an embodiment of the present invention wherein preferred embodiments of the retention member and the seal member are held in place by a strap; -
FIG. 28 illustrates an additional preferred embodiment of the present invention wherein the sleeve/membrane has tensioning tethers in a first condition; -
FIG. 29 illustrates the tethers in a second condition; -
FIG. 30 illustrates the tethers in an irregular, non-uniform configuration; -
FIG. 31 illustrates the tethers in a regular, uniform configuration; and -
FIG. 32 is a perspective view of an access device in combination with a stabilizing platform. - In
FIG. 1 , a patient is illustrated in a prone or supine position and designated by thereference numeral 10. Thepatient 10 has an abdomen 12 which includes a body orabdominal cavity 16 defined by anabdominal wall 18. A plurality oftrocars abdominal cavity 16.Various instruments trocars - In
FIG. 2 , a “hand-assisted” laparoscopic procedure is shown. Thepatient 10 is supine and theabdominal cavity 16 is insufflated. In addition to thetrocars surgical access device 50 that has been placed relative to asurgical incision 100. Thisaccess device 50 is adapted to receive ahand 160 of a surgeon, as it is placed through theaccess device 50 and into theabdominal cavity 16 of thepatient 10. The surgeon is able to use the insertedhand 160 to perform tasks that are too difficult or not safe for the instruments normally used in laparoscopy. Theaccess device 50 provides a gas tight seal so that the insufflated, pressurized abdomen atcavity 16 does not collapse. Theaccess device 50 may also accommodate large, contaminated specimens or diseased organs or tissue. Furthermore, instrumentation or tools that might otherwise be too large for a trocar may be introduced through theaccess device 50 and subsequently attached to device drivers operated through thetrocars access device 50 when fully burdened. - The
access device 50 is placed through thesurgical incision 100,FIG. 3 , and retained against the external abdominal wall 17 by a first retention member orretainer 55, and against the internalabdominal wall 18 by a second retention member orretainer 65. The external,first retainer 55 supports a gas tight sleeve ormembrane 75 at afirst end 76. The internal,second retainer 65 supports the gas tight sleeve ormembrane 75 at the second,opposite end 86. The two opposing ends 76 and 86 maintain a communicatingsurface 77 that passes through theincision 100. The material of thesurgical access device 50 provides a durable and non-permeable surface against the incised tissue defining theincision 100. - With particular reference to
FIGS. 4, 5 , 6, a preferred embodiment of theaccess device 50 has afirst end 51, asecond end 52 and a communicatingmiddle portion 53. Thefirst end 51, in a preferred embodiment, is external to abody cavity 16 and comprises an enlarged andadjustable portion 55. The exact shape of thefirst end portion 55 may be circular, ovoid, rectangular, square, triangular or the like. Thefirst end portion 55 is sized and configured to be adjustable in area so that asurface 77 of a sleeve ormembrane 75 is appropriately stretched or tensioned. - A preferred embodiment of the
access device 50 employs an overlappingleaf spring 56 that is biased to the open condition. As opposing ends 57, 58 of thespring 56 spread apart, appropriate tension is exerted upon the sleeve/membrane 75. The applied tension causes a pulling force to be exerted through the communicatingmiddle portion 53. This force approximates the second, internal, ordistal end 52 of theaccess device 50 to the inner surface of theabdominal wall 18. - The
second retaining portion 65 is preferably constructed of a flexible material that allows it to be inserted into thesurgical incision 100 in a folded form or reduced profile. Thesecond retaining portion 65 is preferably self-deploying or, at least, has sufficient memory to return to a preferred, somewhat circular, or pre-determined shape or condition without manipulation. The material choices for such a configuration may include flexible vinyl, rubber, silicone, or other elastomeric. The materials may also include rigid materials like rigid plastic or metal with a hinged or flexible portion. - In addition, the construction of either the first or
second retention members second retention member 65 is easily deformable to a condition or shape that facilitates introduction into the smallest possiblesurgical incision 100. It must be kept in mind that thesecond retention member 65 must be sized and configured to retain theaccess device 50 in place during the rigors of an active surgical procedure, and do so without causing tissue damage such as tissue necrosis or abrasion. A preferred embodiment of thesecond retention member 65 comprises aring 66 of soft silicone or vinyl with an internal, encapsulated or insert molded Nickel-Titanium support ring. This embodiment may be introduced in a very deformed condition and will subsequently recover the preferred shape and size upon completion of introduction into thebody cavity 16. - As an alternative, the super-elastic and shape-memory properties of Nickel-Titanium may be drawn from temperature transition properties of the alloy. For instance, the
second retention member 65 may be cooled to a temperature where thering 66 is easily, deformable to a high degree, then, as the alloy warms to body temperature, theretention member 65 returns to a programmed shape, size or configuration. - The sleeve/
membrane portion 75 is shaped by the tension between thefirst retention member 55 and thesecond retention member 65. The sleeve/membrane 75 may initially define anorifice 78 which may be a slit or a hole or the like that communicates between the exterior and the interior of thebody cavity 16 through alumen 80. Thelumen 80 exhibits a first condition when the sleeve/membrane 75 is not under tension and a second condition when the sleeve/membrane 75 is under tension. - In a preferred embodiment, the tensioning of the sleeve/
membrane 75 adjusts thelumen 80 to a preferred size and configuration. Such a configuration might be the creation of the radiused, funnel-shapedorifice 78 transitioning to the smaller diameter in themiddle portion 53 and again transitioning to a funnel-shapedenlargement 67 distally at thesecond retention member 65. - The material of a preferred embodiment of the sleeve/
membrane 75 may include a non-distensible or non-elastic material such as polyethylene, polyurethane or reinforced elastomeric. The choice of polyethylene for the sleeve/membrane 75 provides thesurface 77 with nearly friction-free characteristics against most glove materials. Since the polyethylene material is non-elastic, the sleeve/membrane 75 will fold into discrete “fan-fold”segments 79. Such a condition will allow the material of the sleeve/membrane 75 to be compressed radially by the adjacent body tissue so that it forms athroat 90 or nearly occludedmiddle portion 53 when no hand or instrument is present within thelumen 80 of thedevice 50. Thus, in the absence of the hand or instrument, the throat functions as a zero seal. When a hand or instrument is present within thelumen 80, the fan-folded material at thethroat 90 of the sleeve/membrane 75 yields to the size and shape of the inserted hand or instrument yet forms an occlusive instrument seal. Bearing in mind that the normal pneumoperitoneum is about 0.18 to 0.28 psi, thethroat 90 of the present invention is adequate to form both the zero seal and the instrument seal. - The embodiment of
FIG. 5 is similar to that ofFIG. 4 except that themembrane 75 in proximity to thefirst retention member 55 has the configuration of a septum. In this case, theorifice 78 is formed as a slit which transitions into thethroat 90 of the device.Fan-fold segments 79 extend to the ends of the slit ororifice 78 in this embodiment ofFIG. 5 . Thesefan-fold segments 79 are absent in the embodiment ofFIG. 6 . - With reference to FIGS. 7A-D, a preferred embodiment of the
surgical access device 50 of the present invention comprises afirst retention member 155 that is folded so that it resembles a taco. The folding of thefirst retention member 155 relaxes themember 75, allowing thesecond retention member 65 to be easily inserted into a surgical incision 100 (FIG. 2 ). The subsequent unfolding of thefirst retention member 155, for example, by forcing apart a pair ofseparable members membrane 75. In this position, the twomembers first retention member 155 are locked in a single plane or flattened condition with the sleeve/membrane 75 in tension. - In a preferred embodiment of the folded
first retention member 155 theorifice 78 is elongate and in line with afold 159 of the sleeve/membrane 75 as well as a pair of hingedportions 158 of thefirst retention member 155. In an alternative embodiment illustrated inFIGS. 8A-8D , theorifice 78 that is elongate and transverse to both thefold 159 of the sleeve/membrane 75 and the hingedportions 158 of thefirst retention member 155. - With reference to
FIGS. 9-17 , asurgical access device 50 is shown with thefirst retention member 155; however, in this case themember 155 is adjustable in area or circumference. In this embodiment, the twoseparable members first retention member 155 may be separated along a common plane by a pair of actuating adjustingsleeves screws membrane 75 under tension so as to prepare theorifice 78 for use. There may be a several of the adjustingmembers membrane 75. This stretching may be uniform or non-uniform. - Specifically referring to
FIGS. 11, 12 , a further embodiment of thesurgical access device 50 is shown to have at least onehinge 260 that permits theseparate members wheel combination 265. The resulting non-uniform spreading force causes theorifice 78 to assume a preferred condition. - With reference to
FIGS. 13, 14 , there is shown another embodiment of thesurgical access device 50 according to the present invention wherein theelongate orifice 78 is positioned so as to be stretched along itslengthwise midline 278. This configuration causes theorifice 78 to assume a more closed natural condition than would be the case wherein theelongate orifice 78 is transverse to the stretching moment. A combination of in-line and transverse stretching of the sleeve/membrane 75 and theorifice 78 can result in a more symmetrical or uniform opening of theorifice 78. - Referring now to
FIGS. 15, 16 , another embodiment of thesurgical access device 50 is shown, according to the present invention. In this embodiment theseparable members FIG. 15 and a contracted position illustrated inFIG. 16 . In this case, theseparable member 156 has ends 161 and 163 while theseparable member 157 has ends 160 and 162. Foldedseparation members ends ends separable members separable members ends separable members FIG. 15 , theseseparation members FIG. 16 . In this condition, theseparation members separable members - An
elongate orifice 78 may be orientated either in-line or transverse to the direction of stretch. An additional embodiment of thesurgical access device 50 may comprise a plurality of thefoldable separation members membrane 75 is more or less uniform. Thefoldable separation members -
FIG. 17 depicts a further embodiment of thesurgical access device 50 according to the present invention. In this case, thefirst retention member 155 comprises a length of rigid or semi-rigid material formed into a hoop orcoil 290. Thiscoil 290 has opposing ends 291 and 292 as well as anouter surface 293 and aninner surface 294. When the ends 291, 292 are spread relative to each other, thecoil 290 assumes a larger diameter and area so that the tension upon the attached sleeve/membrane 75 is increased. - The position of the coil ends 291 and 292 can be maintained by a series of
ratchet teeth 295 and an associatedratchet pawl 296. In the illustrated embodiment, theratchet teeth 295 are formed on theouter surface 293 and theratchet pawl 296 is formed on theend 292. Alternatively, a second series of ratchet teeth can be formed on theinner surface 294, and an associated second ratchet pawl can be formed on theend 291. This double-ended, double-sided ratchet configuration results in a very large distention potential for thefirst retention member 155 and, concomitantly, the sleeve/membrane 75. - In this embodiment, the
first retention member 155, as well as theratchet teeth 295, and theratchet pawl 296, are preferably constructed of a rigid plastic material such as polycabonate, ABS, PBC or other filled or non-filled material. In a further embodiment, thefirst retention member 155 may be formed from a metal so that it is sterilizable and reusable. Such an embodiment may still include the disposable sleeve/membrane 75 and thesecond retention member 65. - With reference now to
FIGS. 18, 19 , 20, 21, asurgical access device 50 according to the present invention is shown having an inflatable or fillablefirst retention member 300, and a malleable, foldable or otherwise deformablesecond retention member 65. In a preferred embodiment, the inflatable orfillable retention member 300 comprises a closed,hollow structure 310 which may be circular or toroidal. Thehollow structure 310, when un-inflated or un-filled exerts very little, if any, stretching or tensioning force upon the sleeve/membrane 75. When thehollow structure 310 is inflated, however, it assumes a larger diameter and area which results in the desired stretching or tensioning of the sleeve/membrane 75. Preferred embodiments of thehollow structure 310 can be formed from either elastic or non-distensible materials. - Similarly, the sleeve or
membrane 75 can be formed from an elastic material although in a preferred embodiment themembrane 75 is non-distensible. In this embodiment, expansion of thehollow structure 310 also stretches the sleeve/membrane 75 so that thethroat 90 of theaccess device 50 is also placed under tension. This tensioning ofthroat 90 which connects thefirst retention member 300 and thesecond retention member 65, causes thesecond retention member 65 to be appropriately drawn into sealing engagement with the interior surface of the abdominal wall 18 (FIG. 1 ). This will result in a gas-tight seal around theaccess device 50. In the embodiment ofFIG. 19 , themembrane 75 is in the form of a septum. - With attention drawn specifically to
FIGS. 20, 21 , there is shown asurgical access device 50 according to the present invention wherein afirst retention member 300 includes the inflatable orfillable structure 310, and asecond retention member 365 also includes an inflatable orfillable structure 375. Thesecond retention member 365, when un-inflated or un-filled may be easily inserted through anincision 100 into abody cavity 16 and subsequently inflated or filled to assume a more-or-less rigid or definite shape and configuration within thebody cavity 16. Thefirst retention member 300 may then be inflated or filled to provide the external retention and the concurrent stretching or tensioning of the sleeve/membrane 75. Although it is apparent that the sleeve/membrane 75 can also be formed with a double wall structure that is inflatable, this is not the case with the embodiments ofFIGS. 20 and 21 . In these illustrated embodiments, the sleeve/membrane 75 that connects the two inflatable orfillable retention members membrane 75 is not inflatable and relies on a minimum of intrusive material along the middle portion orthroat 90 and through theincision 100. At thisthroat 90 of theaccess device 50, the sleeve/membrane 75 remains smooth, lubricious, thin, and non-bulky. - An additional embodiment of the
access device 50 of the present invention is shown inFIGS. 22, 23 wherein an open-ended, generallycylindrical sleeve 450 is constructed of a plurality of axially aligned, communicating, hollow, inflatable,fillable members 455. The communicatingmembers 455 are inflatable or fillable by means of aninflation tube 458. Particularly when uninflated, the generally cylindrical shape (FIG. 23 ) of theaccess device 450 may be easily distorted so that adistal end 460 may be placed through thesurgical incision 100 and theabdominal cavity 16. As theaccess device 450 is inflated or filled, it assumes an “hour-glass” shape, and develops afirst retention portion 470 and asecond retention portion 480 joined by amiddle section 490. - A non-distensible or non-elastic material is also stipulated for use in this preferred embodiment so that friction is minimized, and so that the material of the
middle section 490 does not gather or fold as a gloved hand or large instrument is repeatedly inserted and withdrawn through theaccess device 450. - In the illustrated embodiment, the individual inflatable or
fillable members 455 form axial chambers andabutments 495 which prevent material motion and also minimize surface contact between a gloved hand and the material which forms the seal with theabdominal wall 18. The lumen of themiddle section 490 may be lubricated with a thick or viscous material which can be stored along the seams of the abutting or adjoining inflatable orfillable members 455. The lubricating product may also function to perfect the instrument seal in the present of a gloved hand or instrument, or to perfect the zero seal in the absence of the gloved hand or instrument. - With reference to
FIG. 24 , asurgical access device 50 according to the present invention is shown wherein a compressiblehelical coil member 500 forms afirst retention member 550. Thecoil member 500 may be deformed so as to minimize the tension upon an attached sleeve/membrane 75 and amiddle portion 560 thereof. Asecond retention member 565 may be deformed and placed within thesurgical incision 100, so that upon release or decompression of thecoil 500 of the first retainingmember 550 thesecond retaining member 565 is appropriately approximated to the interior wall of a body cavity. For packaging and shipping, thecoil 500 of the first retainingmember 550 may be maintained within a containment pouch, bag, box, or the like (not shown) in its most-compact condition. In this condition, the first retainingmember 550 will exert a minimum of tension upon the attached sleeve/membrane 75. - In a similar embodiment illustrated in
FIG. 25 , asecond retaining member 563 is also provided with a secondretention coil member 565. This secondretaining coil member 565 may be introduced through theincision 100 in a compact configuration and subsequently released to assume an enlarged diameter. This provides theaccess device 50 with an increased area of contact at the inner surface of theabdominal wall 18. As thesecond retention coil 565 is released to assume its enlarged diameter, it also functions to stretch or tension the attached sleeve/membrane 75. - With reference to
FIGS. 26, 27 , there is shown asurgical access device 50 according to the present invention that is adapted to be held in position over thesurgical incision 100 by, a strap orbelt 600 which surrounds theabdomen 12 of the patient 10 (FIG. 1 ). In this embodiment, theaccess device 50 may include the strap orbelt 600 and associated closure members or buckles 610. Theaccess device 50 in the embodiment ofFIG. 26 is illustrated as aseptum seal 615. In the embodiment ofFIG. 27 , the access device is similar to that described with reference toFIG. 19 and designated with thereference numeral 300. - Turning now to
FIGS. 28 and 29 , thesurgical access device 50 is shown with amembrane 75 extending between thefirst retention member 55 and thesecond retention member 65. In this embodiment, thefirst retention member 55 includes a solid,rigid ring 700 that is disposed in a plane generally perpendicular to the axis of theaccess device 50. On the side of thering 700 opposite the second retainingportion 65, a plurality ofslits 710 are provided which extend radially of thering 700. In this embodiment, a plurality oftethers 715 are attached to themembrane 75 at different radial locations. Thetethers 715 are attached to themembrane 75 at aninner end 16 and are provided with anenlargement feature 717 at anouter end 718. In this embodiment, theslits 710 of thering 700 are sized and configured to engage and confine at least one of thetethers 715. In such an embodiment, the enlargement features 715 can act to prevent thetethers 715 from being drawn back through theslits 710. Theenlargement feature 717 can also function as handles facilitating engagement of each of thetethers 717, as it is drawn outwardly through the associated slit 710 to tension themembrane 75. - In such an embodiment, it may be desirable to form the
slits 710 so that they are tapered toward the bottom of theslit 710. This will facilitate compression of the associatedtether 715 to increase the frictional engagement between thetether 715 and thering 700. In this manner, thetethers 715 can be collectedly adjusted to provide themembrane 75 with the desired shape and seal characteristics. Themembrane 75 can be released from thering 700 by merely lifting thetethers 715 to disengage their associatedslits 710. InFIG. 30 , thetether 715 is tensioned non-uniformly to provide themembrane 715 with an irregular shape. This configuration can be compared with that illustrated inFIG. 31 wherein the tethers are tensioned uniformly to provide themembrane 75 with a uniform configuration. - In
FIG. 32 , theaccess device 50 is illustrated in combination with a stabilizingplatform 800. Initially, it will be noted that theaccess device 50 which is illustrated, is that described generally with reference toFIGS. 28-31 . However, it will be apparent that the stabilizingplatform 800 can be adapted to receive and function with any of the foregoing embodiments of theaccess device 50, in order to achieve the advantageous discussed below. - In this embodiment, the stabilizing
platform 800 includes a base having a generally planer configuration with a pair ofsupport flanges base 803. A pair of upstanding arms 110 and 112 are pivotally, and perhaps releasably attached to the associatedflanges cross member 814 is pivotally and perhaps releasably connected between thearms cross member 814 in a preferred embodiment is perpendicular to thearms base 803. Theaccess device 50 is supported by thecross member 814, with its axis 816 generally perpendicular to thecross member 814. With this orientation, the first retention member 855, represented by thering 700, is disposed in a plane which may be pivoted relative to theupstanding arms base 803. - In operation, the
base 803 is disposed beneath the patient 10 (FIG. 1 ) in contact with the back of thepatient 10. Theupstanding arms flanges patient 10. Thecross member 814 can then be attached to thearms - The
support platform 800 can be of considerable advantage in a hand-assisted laparoscopic procedure which requires that a human hand being inserted and withdrawn several times while maintaining the abdominal pressure or pneumoperitoneum. As noted, the sealing port or throat 90 (FIG. 4 ) of theaccess device 50 must tightly fit around the wrist or arm of the surgeon. When the hand of the surgeon is removed, thethroat 90 must close tightly to form a zero seal. This closed sealing attachment to the hand or arm of the surgeon can cause the abdominal wall 18 (FIG. 1 ) to change in shape and particularly in elevation as the hand is inserted and removed. If theaccess device 50 is directly attached to theabdominal wall 18, this movement of thewall 18 can result in movement of theaccess device 50 causing other surgical instruments, such as a laparoscope, to be moved or displaced. It is the purpose of the stabilizingplatform 800 to support theaccess device 50 independently of theabdominal wall 18. With this stabilization, movement of the surgeon's hand through theabdominal wall 18 will be less apt to move theaccess device 50. This greatly stabilizes the surgical field and particularly the instruments inserted through theaccess device 50. Appropriate pivoting of thecross member 814 and thearms access device 50 to be swiveled to a position appropriate to patients of various size and weight. In an alternative embodiment, the base may be formed as part of a surgical table with at least one support member, such as thearms cross member 814. - Given the many embodiments disclosed herein for the
access device 50, many other embodiments will now become apparent with changes in structure or materials. For that reason, one is cautioned not to limit the scope of the invention only to the disclosed embodiments, but only with reference to the following claims.
Claims (6)
Priority Applications (1)
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US11/330,661 US20060149306A1 (en) | 2001-10-20 | 2006-01-12 | Sealed surgical access device |
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US10/399,057 US7052454B2 (en) | 2001-10-20 | 2001-10-20 | Sealed surgical access device |
PCT/US2001/050160 WO2003034908A2 (en) | 2001-10-20 | 2001-10-20 | Sealed surgical access device |
US11/330,661 US20060149306A1 (en) | 2001-10-20 | 2006-01-12 | Sealed surgical access device |
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PCT/US2001/050160 Division WO2003034908A2 (en) | 2001-10-20 | 2001-10-20 | Sealed surgical access device |
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