Bipolar Vessel Sealing and Dissection Devices
Video
What
Bipolar vessel sealing and dissection devices use advanced radiofrequency energy to seal blood vessels and other tissue structures. These devices are used in open, laparoscopic, and thoracoscopic surgery.
Why
These devices are often used for the following purposes and benefits:
To seal and divide blood vessels and other tissue structures when surgically removing organs. Common procedures in which this is done include hysterectomies, colectomies, splenectomies, gastrectomies, pancreatectomies, and nephrectomies.
To dissect tissue. Common procedures in which this is done include adhesiolysis and endometriosis resection.
To seal and divide tissue faster compared to tying sutures. Speed is a critical factor for reducing the amount of time the patient is under anesthesia and also reducing the cost of time in the operating room.
To seal and divide tissue without leaving objects in the body such as staples or clips.
How
These devices use a combination of radiofrequency energy and pressure to seal blood vessels and other tissue structures. Some devices also include integrated cutting to divide tissue.
Bipolar vessel sealing typically consists of the following main components:
Jaws: Pressure is applied by the jaws to hold the tissue layers together like a clamp. Radiofrequency energy from the generator is delivered to the tissue through conductive surfaces on the jaws. The jaws consist of two electrical poles, hence the term bipolar.
Tissue: The tissue is placed between the jaws. The high-frequency alternating current causes the hydrated tissue to heat up. Collagen and elastin molecules within the tissue melt and then fuse back together, creating the seal.
Lever: The user squeezes this to close the jaws.
Button: The user presses this to activate energy.
Trigger: The user pulls this to divide the tissue. Most devices use a mechanical blade but some devices use energy to divide the tissue.
Rotation Wheel: The user rotates this to rotate the shaft and jaws.
Articulation Control: The user actuates this to change the angle of the jaws.
Advanced Energy Generator: This provides radiofrequency energy controlled by an advanced algorithm for optimal tissue sealing.
Components of a Typical Bipolar Vessel Sealing and Dissection Device
Who
Some companies who make bipolar vessel sealing and dissection devices include:
Medtronic, Covidien, Valleylab (LigaSure, BiZact)
Johnson & Johnson, Ethicon (ENSEAL)
Bolder Surgical, JustRight Surgical (CoolSeal, JustRight)
Olympus, Gyrus ACMI (PK, PKS)
Intuitive Surgical (da Vinci Energy, SynchroSeal, Vessel Sealer Extend, EndoWrist Vessel Sealer)
Aesculap (Caiman)
KLS Martin (SealSafe, marClamp, marSeal)
Erbe (BiClamp, BiCision)
Applied Medical (Voyant)
BOWA (NightKNIFE, ERGO, LIGATOR, TissueSeal)
HEBUmedical (BiSeal)
Micromed
References
http://www.ethicon.com/healthcare-professionals/products/advanced-energy#!enseal-portfolio, http://www.businesswire.com/news/home/20131111005110/en/Ethicon-Energy-Launches-ENSEAL®-G2-Articulating-AAGL, http://ifworlddesignguide.com/entry/150783-enseal-g2
http://www.intuitivesurgical.com/assets/docs/1021625-EUrA_Si_System_I&A_Catalog_no_pricing_EU_highres.pdf, http://www.intuitivesurgical.com/products/instruments/, http://www.medgadget.com/2012/01/endowrist-one-vessel-sealer-debuts-for-da-vinci-si-surgical-system.html
http://www.klsmartin.com/products/electrosurgery/vessel-sealing/
https://www.erbe-med.com/us/medical-technology/public/Products/OEM/7000_vesselsealing
http://www.micromed.com/en-US/products/bipolar/bipolar_vessel-sealing-instrument/
