52 results about "Laparoscopic Port" patented technology

Various embodiments of a laparoscopic trocar assembly are disclosed. The port assemblies include inserted parts that protect the patient's tissues at the point of deployment. The port assemblies include seals for maintaining pneumoperitoneum both when instrument are being used and when instruments are not inserted.

A laparoscopic port assembly includes a cannula unit including three cannulas each extending at an acute angle relative to a base. The cannulas are flexible for receiving respective angulated laparoscopic instruments. The cannula unit is rotatingly received in a port holder for rotation about a longitudinal axis of the holder, the holder being disposable in an opening in a patient's skin.

A device is provided to assist in closing an incision through body tissue that comprises a tubular body sized for introduction through the incision and carrying a plurality of stabilizer elements at the distal end thereof. The stabilizer elements are configured to be deployed within the body cavity to engage the lowermost tissue layer. In one method, the device is pulled with the stabilizer elements deployed to retract the body tissue away from adjacent body structure. In another method, a plurality of needle tips carrying sutures are guided through the body tissue to a retention device at the ends of the stabilizer elements. With the needle tips captured in the retention devices, the device is withdrawn from the incision so that the sutures form ligatures that can be tied off to close the incision.

A laparoscopic surgical technique is provided for preparing a site for implantation of a fusion device or implant. In accordance with one embodiment of the technique, a laparoscope is provided having an outer sleeve with distraction fingers at one end to distract the disc space. The laparoscope includes a laparoscopic port at its opposite end through which instruments and implants are inserted. The laparoscope provides a sealed working channel to the disc space, through which the disc space is distracted, the vertebral endplates and surrounding disc is reamed, and the fusion device inserted. The laparoscope is alternately engaged within bilateral locations in the disc space for insertion of a pair of fusion implants. A switching sleeve extends through the laparoscope to protect the tissue at the surgical site as the laparoscope is moved between the bilateral fusion locations.

Apparatus and methods are described allow the techniques of endoscopic and laparoscopic surgery to be combined into a minimally invasive hybrid surgical technique called NOTES-assisted laparoscopic surgery. Manual and robotic-controlled versions of a modular laparoscopic tool are described having a small diameter shaft that is delivered laparoscopically to a surgical site. Larger diameter working tips are delivered through a NOTES delivery tube inserted to the surgical site through a natural orifice and joined to the shaft of the modular laparoscopic tool. Larger diameter working tips improve the effectiveness of the modular laparoscopic tools and the number and size of laparoscopic ports used can also be reduced.

ClotFoam is a surgical sealant and hemostatic agent designed to be used in cases of non-compressible hemorrhage. It can be applied in the operating room through laparoscopic ports, or directly over lacerated tissue in laparotomy procedures or outside the operating room through a mixing needle and / or a spray injection method following abdominal, chest, extremities or other intracavitary severe trauma to promote hemostasis. Its crosslinking technology generates an adhesive three-dimensional polymeric network or scaffold that carries a fibrin sealant required for hemostasis. When mixed, Clotfoam produces a foam that spreads throughout a body cavity reaching the lacerated tissue to seal tissue and promote the coagulation cascade.The viscoelastic attachment properties of the foam as well as the rapid formation of a fibrin clot that ensure that the sealant remains at the site of application without being washed away by blood or displaced by movement of the target tissue .

A surgical clamp is provided that is applied through a laparoscopic port and is used for clamping off a portion of an organ. The surgical clamp comprises an elongated flexible bioabsorbable polymer band laced with a hemostatic agent. The band has a proximal end and a distal end. A bioabsorbable polymer tie secures in place the proximal end of the band to the distal end of the band. A conductive wire snare is provided to cut and cauterize a target.

A surgical device for guiding a needle during suturing of an incision comprising a body for insertion in the incision having a first passage to conduct an end of the needle below a location surrounding the incision, wherein a distal portion of the body comprises means for indicating the location to which the needle will be conducted. Methods for suturing an incision using the surgical device are also provided.

A device is provided to assist in closing an incision through body tissue that comprises a tubular body sized for introduction through the incision and carrying a plurality of stabilizer elements at the distal end thereof. The stabilizer elements are configured to be deployed within the body cavity to engage the lowermost tissue layer. In one method, the device is pulled with the stabilizer elements deployed to retract the body tissue away from adjacent body structure. In another method, a plurality of needle tips carrying sutures are guided through the body tissue to a retention device at the ends of the stabilizer elements. With the needle tips captured in the retention devices, the device is withdrawn from the incision so that the sutures form ligatures that can be tied off to close the incision.

A laparoscopic fascial closure device (10) for fashioning a secure closure about a laparoscopic puncture site. The device comprises an elongate cannula (12) having proximal (12a) and distal (12b) ends. A needle suture complex (22) is selectively deployed from the distal end (12b) of the device that is operative to deploy a suture across the puncture site from within the body and draw the free ends of the suture outwardly from the body via the laparoscopic port site. The device (10) is configured to be utilized through a ten millimeter or larger laparoscopic port, and is operative to position the suture at the puncture site such that the suture extends in a diametrically-opposed configuration at least 1.0 cm or greater across opposed sides of the puncture site.

An apparatus for reversely deactivating a port seal in a laparoscopic port and providing a continuous passage between the laparoscopic port and a remote location in a body cavity.

Surgical instruments are arranged for cutting and cauterizing tissue with a closed-loop wire. An extension / retraction mechanism forces a closed wire loop to constrict upon tissue enclosed by the loop as the loop is retracted and drawn to a smaller size. Simultaneously, as electrical current is passed through the wire loop and further into the tissue, the tissue is resected and cauterized. The closed wire loop is electrically coupled to a remote power source via conductor(s) which cooperate with the extension / retraction mechanisms. The extension / retraction mechanism permits the loop to be extended and retracted as it is adjusted from a first limit position towards a second limit position and respectively back again. Further, the entire instrument is devised to function in cooperation with common laparoscopic port systems. Accordingly, the retraction mechanism permits the closed wire loop to be extended and retracted through a small hollow tube which may be placed in an abdomenal port installed in a surgical process. In the alternative, these devices may be arranged with slight modification to be either bi-polar or monopolar systems.

An endoscopic surgical instrument is used in minimally invasive laparoscopic surgery for inserting a gastric band into a patient's abdomen through a laparoscopic port. The gastric band insertion instrument includes a handle, an elongated shaft and a distal end assembly. The elongated shaft includes an actuator rod that opens and closes a movable jaw at the distal end. A pin at the distal end assembly engages a hole in the front of the gastric band, and the movable jaw is closed thereby securely capturing the front end of the gastric band. The shaft and the captured gastric band are inserted through a laparoscopic port into the patient's abdomen.

A laparoscopic vascular conduit arrangement has an elongate graft tube ( 1, 10 ) which is placed through a body cavity into a body vessel using a laparoscopic port sheath ( 70 ) with a distal valve ( 73 ) and a second sheath ( 80 ) with distal valve ( 86, 87 ). The graft tube ( 1, 10 ) extends through the laparoscopic port sheath so that the distal end ( 108 ) of the graft tube extends out of its valve and the proximal end of the graft tube extends out of the proximal end of the laparoscopic port sheath. The second sheath ( 80 ) is deployed into the distal end ( 108 ) of the graft tube ( 1, 10 ) such that the first valve ( 73 ) seals around the graft tube and the second sheath ( 84 ). The proximal end of the graft tube can be deployed into the vessel of the body to allow access into the vessel through the graft tube via the second valve. The conduit can be removed after use or used to provide vascular bypass.

The present invention relates to a laparoscopic port site closing apparatus configured such that a cartridge having a suture thread therein is formed at the front end of a needle guide for laparoscopic port site suturing and that the suture thread is threaded through the tip of a needle, which is guided by the needle guide and penetrates biological tissue, so that when the needle is taken out, the suture thread is extracted along an invasion path and tied outside, thereby suturing a laparoscopic port. In order to be imported into the laparoscopic port, the apparatus is in a tubular shape and comprises: a tubular body provided with needle guides, the needle guides facing to each other and guiding the insertion of the needle; wings arranged at the lower part of the tubular body and being spread and folded through cams; and an operating rod which penetrates the tubular body to spread the wings through rotation and fold the wings through reverse rotation, so as to operate the wings. The apparatus also comprises a replaceable cartridge formed at the lower end of the tubular body and attached to / detached from the operating rod, wherein the cartridge is provided with the wings spread to either side by the operating rod and a compartment having the suture thread therein, the laparoscopic port site closing apparatus is configured such that either end of the suture thread is inserted in the wings and that the ends of the suture thread are hooked to a groove of the needle invading from the outside of a body so as to be extracted to the outside of the body.

In laparoscopic surgery, small (5-12 mm diameter) incisions are made in the abdominal wall through which instruments dissect and remove specimens that may be several centimeters in diameter. Removal of the sample typically requires either enlarging these incisions or morcellating the sample to pass through the sub-centimeter ports. The laparoscopic device permits extraction of the sample to be removed in a female using the vagina, which has sufficient elasticity to accommodate removal of large specimens. The posterior portion of the vagina communicates to the abdomen through a few tissue layers, and is distant from vital anatomic structures. Utilizing the vagina is optimal due to its ease of access to the abdomen and repair, minimal scarring and post-operative pain, and faster recovery following surgery. A deployable collection bag is housed in a sheath, which is deployed into the vagina or abdominal cavity to extract a large (multiple-centimeter) specimen(s) through the vagina. Optional insufflation system and inflatable balloon to maintain pneumoperiotoneum may be used to reduce the number of laparoscopic ports required.

Surgical Manipulator A surgical manipulator (10) is disclosed which employs a suction cup (30) to hold body parts (50) whilst the manipulator is moved to manipulate the body part (50). Suction at the cup (30) is provided by means of a central passage (16) running through an extension (20) and through a handle part (14) to a vacuum connector (12). The suction at the cup (30) can be adjusted by a slider (15) which adjustably opens the passage (16) to atmosphere. Needles (58) and the like can be introduced into the passage (16) and thereby into the body part (50). For laparoscopic surgery the manipulator can be introduced into a laparoscopic port (52) by collapsing the suction cup (30) within an introducer sleeve (22 Fig 3). The introducer sleeve (22) can act as a suction device when the cup (30) is collapsed within it. The needle (58) can be replaced by a diathermy electrode (60 Fig 6) and irrigation is possible using an additional supply tube (121 Figure 4).

The present invention discloses a surgical device for guiding a needle during suturing of an incision comprising a body for insertion in the incision having a first passage to conduct an end of the needle below a location surrounding the incision, wherein a distal portion of the body comprises means for indicating the location to which the needle will be conducted. Methods for suturing an incision using the surgical device are also provided.

An insufflation / desufflation apparatus / system, and method of use thereof. An airtight tube is secured circumferentially to the opening of an endoscopic containment bag. The tube is attached to a valve and a small conduit for insufflating (pressurizing) and desufflating (depressurizing) the tube. The tube is formed of a highly pliable material, similar to the plastic of the pliable containment bag. When the tube is desufflated, the bag and tube are easily folded and wrapped for passage into the peritoneal cavity via a standard laparoscopic port. When the tube is insufflated via the conduit, air fills the closed tube and makes the whole structure substantially rigid in the shape of the containment bag opening around which it is secured. The result is that the bag is forced open by the now rigid, insufflated tube.

Various embodiments of a laparoscopic trocar assembly are disclosed. The port assemblies include inserted parts that protect the patient's tissues at the point of deployment. The port assemblies include seals for maintaining pneumoperitoneum both when instrument are being used and when instruments are not inserted.

A laparoscopic netting assembly is provided for conducting a gallbladder or bile duct procedure through one of the throughbores in a carrier sheath, which in turn may be positioned within a laparoscopic port. The carrier sheath includes at least one through channel for conducting a frame control rod, and optionally a deployment rod. The netting assembly includes a collapsible and expandable frame and a fluid permeable netting, which is preferably comprises a plurality of netting layers, suspended on the frame for collecting stones released from the gallbladder or bile duct. The frame is sized to also collect the gallbladder. The carrier sheath may also include one or more through channels for a cutting instrument.

An endoscopic or laparoscopic conduit delivery device ( 1 ) comprises first and second separately manipulable introducers ( 3, 5 ) with a laparoscopic conduit ( 80 ) having first and second ends ( 83, 84 ) and an intermediate portion being mounted onto the introducers in a substantially U shape. The first end and a first portion of the laparoscopic conduit is retained onto the first introducer and the second end and a second portion of the laparoscopic conduit is retained on the second introducer and the intermediate portion extends between the first and second introducers. A main sheath ( 42 ) is over the first and second introducers. The endoscopic or laparoscopic conduit delivery device is introduced to a body cavity through an endoscopic or laparoscopic port ( 50 ).

An endoscopic access port and sheath assembly or laparoscopic port (10) comprises a sheath (12) and a haemostatic valve. The sheath has an elongate tubular body and a sheath lumen through it. The haemostatic valve comprising a housing (14), the housing comprises a tubular body with an internal lumen (18) and a first end and a second end. The first end is connected to the sheath and the sheath lumen and the internal lumen are in fluid communication. The second end of the housing has an access port. There is a substantially cylindrical valve assembly (27) within the housing at the second end of the housing. The substantially cylindrical valve assembly is formed from a plurality of valve segments (28). Each valve segment has an elongate body being in cross section a sector of a circle. Each valve segment is formed from a resilient material. The plurality of valve segments when assembled form the substantially cylindrical valve assembly and define between each other a plurality resilient interface regions (29) to receive and grip a medical device between them in use.

A laparoscopic vascular conduit arrangement has an elongate graft tube (1, 10) which is placed through a body cavity into a body vessel using a laparoscopic port sheath (70) with a distal valve (73) and a second sheath (80) with distal valve (86, 87). The graft tube (1, 10) extends through the laparoscopic port sheath so that the distal end (108) of the graft tube extends out of its valve and the proximal end of the graft tube extends out of the proximal end of the laparoscopic port sheath. The second sheath (80) is deployed into the distal end (108) of the graft tube (1, 10) such that the first valve (73) seals around the graft tube and the second sheath (84). The proximal end of the graft tube can be deployed into the vessel of the body to allow access into the vessel through the graft tube via the second valve. The conduit can be removed after use or used to provide vascular bypass.

An apparatus for reversely deactivating a port seal in a laparoscopic port and providing a continuous passage between the laparoscopic port and a remote location in a body cavity is disclosed.