초록 ▼

The invention provides a vacuum mouthpiece (2) for the acquisition and retention of resected biological specimens for retrieval from a body cavity, the mouthpiece being attached to a first tubular member (4) connectable to a vacuum source and having an active surface including at least one opening c

The invention provides a vacuum mouthpiece (2) for the acquisition and retention of resected biological specimens for retrieval from a body cavity, the mouthpiece being attached to a first tubular member (4) connectable to a vacuum source and having an active surface including at least one opening communicating with the first tubular member; the mouthpiece (2) being made of an elastically resilient material and having, in a free state, an outside diameter larger than the inside diameter of a second tubular member (24) into which it is insertible by elastic deformation. The invention further provides a closable pouch (20) for the entrapment and retrieval of a resected biological specimen from a body cavity, and a laparoscopic system and method utilizing the above.

대표청구항 ▼

The invention provides a vacuum mouthpiece (2) for the acquisition and retention of resected biological specimens for retrieval from a body cavity, the mouthpiece being attached to a first tubular member (4) connectable to a vacuum source and having an active surface including at least one opening c

The invention provides a vacuum mouthpiece (2) for the acquisition and retention of resected biological specimens for retrieval from a body cavity, the mouthpiece being attached to a first tubular member (4) connectable to a vacuum source and having an active surface including at least one opening communicating with the first tubular member; the mouthpiece (2) being made of an elastically resilient material and having, in a free state, an outside diameter larger than the inside diameter of a second tubular member (24) into which it is insertible by elastic deformation. The invention further provides a closable pouch (20) for the entrapment and retrieval of a resected biological specimen from a body cavity, and a laparoscopic system and method utilizing the above. bowl-like mouthpiece (2) having a front face and a rear face, for capturing and retaining a resected specimen, said mouthpiece (2) being connected at its rear face to the distal end of said inner tubular member (4) and being made of an elastically resilient material, said mouthpiece (2) having a diameter in a non-deformed state exceeding the inside diameter of said outer tubular member (24) but fitting into the distal end of said outer tubular member by elastic deformation; a plurality of finger-like elements (22) fixedly connected to the distal end of said intermediate tubular member (26); a pouch (20) made of pliable, membraneous material fixedly attached at a plurality of points to said plurality of finger-like elements (22); characterized in that, in the non-active, telescoped state of said system, said pouch (20), connected to said plurality of finger-like elements (22), is collapsed and disposed inside said annular space behind the rear face of said mouthpiece (2), and in the active state of said system, when said intermediate tubular member (26) is pushed out of the outer tubular member (24), the distal ends of said finger-like elements (22) first flex away from each other, thereby causing the pouch (20) to open and to engulf said mouthpiece (2), and thereafter, the distal ends of said finger-like elements (22) flex toward each other, thereby causing the pouch (20) to close, entrapping and retaining said specimen for retrieval. 8. The system as claimed in claim 7, wherein said finger-like elements (22) are made of a shaped-memory material exhibiting different responses to different temperatures. 9. The system as claimed in claim 8, wherein said different temperatures include a first temperature being the room temperature and a second temperature being at least the temperature inside a body, and wherein the response of the distal ends of said finger-like elements (22) to said first temperature is to spread out, while their response to said second temperature is to close. 10. The system as claimed in claim 8, wherein said shaped-memory material is a nickel-titanium alloy. 11. The system as claimed in claim 7, wherein said mouthpiece (2) is provided with a central opening for the introduction of a morcellator or a suction needle. 12. A method for acquisition and retrieval of resected biological specimens, using the system as claimed in claim 7, the method comprising the steps of: introducing the distal end of the telescoped device into the body cavity; pushing out the inner tubular member (4), thereby removing the mouthpiece (2) from the outer tubular member (24) and causing said mouthpiece (2) to assume its full diameter; actuating the vacuum-producing means and moving mouthpiece (2) to a location in close proximity to the specimen to be resected, causing the resected specimen to cling to said mouthpiece (2); pushing out the intermediate tubular member (26), thereby causing the distal ends of finger-like elements (22) to emerge from the annular space between the outer tubular member (24) and the inner member (4), said finger-like elements (22) carrying along and opening up the pouch (20) attached to them for engulfing the specimen retained by said mouthpiece (2); allowing the distal ends of said finger-like elements (22) to close over said mouthpiece (2), thereby closing the pouch (20) over said specimen, and withdrawing the device from the body cavity. 13. The method as claimed in claim 12, wherein said specimen is removed from said body cavity by suction. 14. The method as claimed in claim 13, comprising the further step of introducing a surgical instrument (30) into said pouch (20) for the fragmentation of said specimen. 15. The method as claimed in claim 13, comprising the further step of introducing a suction needle into said pouch (20) for the evacuation of a liquefied specimen.