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Living body tissue harvesting apparatusRelated Patent Categories: Surgery, Instruments, Blood Vessel, Duct Or Teat Cutter, Scrapper Or AbraderLiving body tissue harvesting apparatus description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060235450, Living body tissue harvesting apparatus. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCES TO RELATED APPLICATIONS [0001] This application is a continuation application of PCT/JP2005/017491 filed on Sep. 22, 2005 and claims benefit of Japanese Patent Applications No. 2004-275747 filed in Japan on Sep. 22, 2004 and No. 2004-275752 filed in Japan on Sep. 22, 2004, the entire contents of which are incorporated herein by this reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a living body tissue harvesting apparatus for harvesting living body tissues such as a subcutaneous vessel. [0004] 2. Description of the Related Art [0005] In a bypass surgery of a blood vessel of heart, as the blood vessel for bypass, a subcutaneous vessel such as a great saphenous vein is occasionally used. Conventionally, in the operation, in order to see entire blood vessel from an inguinal region in lower limb to an ankle, skin in the lower limb is cut and the subcutaneous vessel is extracted. In recent years, an operation is performed wherein a subcutaneous vessel such as a great saphenous vein is pulled and harvested under endoscopic observation. [0006] For example, U.S. Pat. No. 5,895,353 and Japanese Unexamined Patent Application Publication No. 2004-008241 disclose instruments used in such operations under endoscopic observation. [0007] These instruments are composed of instruments such as a dissector, harvester, or the like. Through the dissector and harvester, an endoscope can be inserted, and an operator can harvest the blood vessel while watching the endoscopic image. [0008] The dissector is an instrument which is inserted from a trocar which is a guiding tube set to an incision part in the vicinity below a patient's knee, by being inserted through the entire length of the blood vessel to be harvested, gradually dissects the blood vessel and the peripheral tissues. SUMMARY OF THE INVENTION [0009] It is an object of the present invention to provide a living body tissue harvesting apparatus having a grip section and a tubular insertion section connected to the grip section and to be inserted into a body cavity. The living body tissue harvesting apparatus includes a gas supplying path for supplying a predetermined gas from an external gas supplying device into the insertion section, a first opening part provided on the insertion section for discharging the predetermined gas from the gas supplying path through the insertion section, and a communication path provided in the insertion section for communicating with outside through the grip section. [0010] According to the living body tissue harvesting apparatus of the present invention, pressure in the body cavity is prevented from becoming above a predetermined value. BRIEF DESCRIPTION OF THE DRAWINGS [0011] FIG. 1 is a structural view illustrating a structure of a surgery system according to a first embodiment of the present invention; [0012] FIG. 2 is a perspective view illustrating a trocar according to the first embodiment of the present invention; [0013] FIG. 3 is a longitudinal sectional view illustrating the trocar according to the first embodiment of the present invention; [0014] FIG. 4 is a flowchart for explaining an operating method of pulling a subcutaneous vessel and harvesting the pulled subcutaneous vessel; [0015] FIG. 5 is an illustration for explaining the operating method of pulling a subcutaneous vessel and harvesting the pulled subcutaneous vessel; [0016] FIG. 6 is a cross-sectional view illustrating a state in which a dissector is inserted into subcutaneous of lower limb through a trocar according to the first embodiment of the present invention; [0017] FIG. 7 is an illustration for explaining an operating method of pulling a subcutaneous vessel and harvesting the pulled subcutaneous vessel; [0018] FIG. 8 is a cross-sectional view illustrating a state in which a harvester is inserted into subcutaneous of lower limb from an incision part through the trocar; [0019] FIG. 9 is an illustration for explaining an operating method of pulling a subcutaneous vessel and harvesting the pulled subcutaneous vessel; [0020] FIG. 10 is a side view of the dissector according to the first embodiment of the present invention; Continue reading about Living body tissue harvesting apparatus... Full patent description for Living body tissue harvesting apparatus Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Living body tissue harvesting apparatus patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Living body tissue harvesting apparatus or other areas of interest. ### Previous Patent Application: Artificial gastric valve Next Patent Application: Vascular intimal lining removal assembly Industry Class: Surgery ### FreshPatents.com Support Thank you for viewing the Living body tissue harvesting apparatus patent info. IP-related news and info Results in 0.14711 seconds Other interesting Feshpatents.com categories: Tyco , Unilever , Warner-lambert , 3m 174 |
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