Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
  • A61B17/34—Trocars; Puncturing needles
  • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
  • A61B17/3421—Cannulas
  • A61B17/3431—Cannulas being collapsible, e.g. made of thin flexible material
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
  • A61B17/34—Trocars; Puncturing needles
  • A61B17/3474—Insufflating needles, e.g. Veress needles
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
  • A61B90/37—Surgical systems with images on a monitor during operation

Definitions

• the current invention patent refers to a "LAPAROSCOPIC TROCAR WITH FLEXIBLE ENDOSCOPIC SYSTEM" this instrument makes possible for flexible, endoscopic optical systems the access into the abdominal cavity, as a choice for conventional laparoscopy with multiple punctures and surgery through natural orifices.
• the invention faces the issue of using exams and endoscopic surgeries technique in conjunction with the laparoscopic technique, which currently uses several incisions in the abdomen, causing discomfort to the patient and increasing surgical risks.
• the situation to be handled is to adapting flexible endoscopic systems to the laparoscopy, which currently uses several abdominal cuts, that, although minuscule cuts, result in scars and are regions where there may occur complications, such as bleeding or infection.
• Another issue to address when using conventional laparoscopy is that the difficulties to provide access to the cavity, both in terms of viewing inside with an optical system and performing the surgery procedure using surgical instrumentation, can only be solved by repositioning, that is, by doing a new incision for inserting another trocar - this results in up to eight (8) small cuts in some surgeries.
• the current invention aims at enabling the utilization of flexible endoscopic instruments in the abdominal cavity, allowing exams and surgeries to be performed using a single millimeter orifice as opposed to multiple orifices as used in the conventional laparoscopic surgery, keeping carbon dioxide to the pneumoperitoneum and transparietal access, decreasing, thus, risks of complications once there is a minimum number of cuts (a single incision) and having only a minuscule scar that, due to system flexibility, may be positioned in a way that it will not be visible.
• the guide tube is removed and the solid part of the trocar is coupled to a flexible part, which is composed by a flexible coat with or without flexible cannulas to be added to the end of the endoscope in order to allow the flexible system to freely move, not letting dioxide out nor losing pneumoperitoneum positive pressure, which can be done by isolating the area between the abdominal cavity and the trocar lumen, through which the flexible optical system pass.
• a flexible part which is composed by a flexible coat with or without flexible cannulas to be added to the end of the endoscope in order to allow the flexible system to freely move, not letting dioxide out nor losing pneumoperitoneum positive pressure, which can be done by isolating the area between the abdominal cavity and the trocar lumen, through which the flexible optical system pass.
• FIGURE 1 shows the trocar
• FIGURE 2 shows a perspective view of the trocar
• FIGURE 3 shows the device's guide tube
• FIGURE 4 shows the flexible part
• FIGURE 5 shows the flexible part with cannulas
• FIGURE 6 shows the guide tube inserted into the trocar
• FIGURE 7 shows a perspective view of the guide tube inserted into the trocar
• FIGURE 8 shows the guide tube inserted into the trocar having the endoscope inside
• FIGURE 9 shows a perspective view of FIGURE 8.
• FIGURE 10 shows the flexible part coupled to the trocar, having the endoscope and cannulas along its longitude, under surgical conditions;
• FIGURE 11 shows a perspective view of FIGURE 10.
• the "LAPAROSCOPIC TROCAR WITH FLEXIBLE ENDOSCOPIC SYSTEM” is a surgical set composed by a transparent guide tube (FIGURE 3), having a coupling base (5) on one end and a curved tip on the other end to allow viewing the act of puncturing a wall or internal organ, using a diameter adjusted to the internal diameter of the hollow device - TROCAR (FIGURES 1 and 2), to which, on its proximal end, a flexible coat is coupled (FIGURE 5), next to the dioxide inlet pipe (3), and on the other end there is a taper to ease the access to the body and the introduction of the flexible coat (8), which is a protection cover for the endoscope (7) and for the cannulas and flexible channels
• the trocar's proximal end has a coupling structure (2), to where the flexible coat will be coupled (8), through which the endoscope will pass (7) and to which may be coupled one or more flexible cannulas (11) to receive tweezers or other instrument needed to diagnoses or surgery procedure.
• a guide tube (FIGURE 3) is a transparent, solid, rounded-tip tube to fit the internal part of the trocar (FIGURES 1 and 2), extending beyond its beveled end, aimed at guiding the instrument user during insertion into or perforation of a patient's internal organ wall.
• the insertion tip consists of a bevel, aimed at providing access to the area to be explored.
• the flexible part is composed by a flexible coat (FIGURE 4), including a protection cover for diagnose and/or surgical instruments that has a coupling (9) which is fixed to the coupling structure (2) of the trocar (1), having progressively smaller diameter on its distal end (12), so to integrate the endoscope and cannulas, enabling such instruments to move freely and isolating them from the pneumoperitoneum.
• a flexible coat (FIGURE 4)
• a protection cover for diagnose and/or surgical instruments that has a coupling (9) which is fixed to the coupling structure (2) of the trocar (1), having progressively smaller diameter on its distal end (12), so to integrate the endoscope and cannulas, enabling such instruments to move freely and isolating them from the pneumoperitoneum.
• ENDOSCOPIC SYSTEM is a surgical set whose solid part is internally coupled to a flexible coat (8), with or without flexible cannulas (11), aimed at receiving, according to the surgical objective, a flexible endoscope (7) which is fixed to the proximal end (2).
• the "LAPAROSCOPIC TROCAR WITH FLEXIBLE ENDOSCOPIC SYSTEM” is composed by a surgical instrument with a rounded-tip structure (2) to the coupling of the flexible part, a pipe (3) for the blower hose (6), with a beveled end for the insertion into the access path.
• the device has a flexible coat (8) to be inserted into the endoscope (7), having progressively smaller diameter (12) to fit the endoscope (7) to be used, the flexible part (8) may integrate flexible cannulas (11) that may integrate the flexible endoscope (7), so the entire system will be moving towards the same direction, enabling several types of flexible tweezers to pass through to perform the operation.
• the proximal part of the flexible membrane is added to the endoscope (7) through a coupling (9), not allowing pneumoperitoneum dioxide out through the coupling structure (2) of the trocar (1).
• the other end of the flexible part (9) is added to the proximal part (2) of the trocar through a coupling ring which is fixed to the trocar's external end, preferably by means of a pressure semiarrow (10), ensuring its is sealed.
• the coupling (9) is disposable.
• the guide tube (4) is a transparent, hollow tube with rounded tip, to which the endoscope (7) is coupled, integrated to the trocar (1) to visually assist when inserting internally into the organic tissue, avoiding, at this moment, any patient's organ, vessel, blood vessel or internal membrane to be perforated.

Applications Claiming Priority (2)

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Cited By (1)

Citations (2)

• 2007
  • 2007-02-09 BR BRPI0701144-0A patent/BRPI0701144A/pt not_active IP Right Cessation
• 2008
  • 2008-01-24 WO PCT/BR2008/000021 patent/WO2008095270A1/en active Application Filing

Patent Citations (2)

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