Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...
Patent
1994-05-11
1995-08-15
Green, Randall L.
Surgery
Means for introducing or removing material from body for...
Material introduced into and removed from body through...
604 28, 604 43, 604 45, 604264, 261 792, A61M 100, A61M 2500
Patent
active
054414822
ABSTRACT:
A probe for use in collecting liquids entrained with a gaseous component, particularly collecting a patient's blood with entrained gas bubbles from a surgical site for autologous reinfusion. The probe separates the gaseous component from the collected liquid, particularly separating air bubbles from blood cells to inhibit hemolysis, platelet degradation and protein denaturation. An elongated probe body has a distal end to be inserted into the liquid to be collected through an inlet by jet pump action into a centrally disposed mixing chamber. A diffuser is formed within the probe body proximal to and in axial alignment with the inlet and mixing chamber leading to a liquid exit. A jet pump nozzle is formed in the probe distal tip surrounding the inlet in the form of an annular chamber into which pressurized drive fluid is introduced through a distribution channel system extending along the probe body from the proximal end. The drive fluid is ejected in a swirling vortex from the jet pump nozzle around the periphery of the mixing chamber effecting a sub-atmospheric pressure for suctioning the liquid to be collected and the gaseous component thereof into the inlet and mixing chamber. The drive fluid mixes therewith in the swirling vortex and propels the mixture into the diffuser while concentrating the gaseous component in the center of the swirling vortex as a stream. A gas evacuation tube is oriented in the centrally disposed concentrated gaseous stream for evacuating the gaseous component from the mixture before it is propelled into the diffuser. In the autologous reinfusion context, the entrained air bubbles are concentrated and removed in the probe from the blood as they are suctioned into the swirling vortex to reduce hemolysis. When mixed in the vortex, the blood and drive fluid mixture is pressurized to inhibit further air bubble formation.
REFERENCES:
patent: 3912468 (1975-10-01), Tuschiya et al.
patent: 3952743 (1976-04-01), Harrison
patent: 3955573 (1976-05-01), Hansen et al.
patent: 4002170 (1977-01-01), Hansen et al.
patent: 4170457 (1979-10-01), Tetro
patent: 4345919 (1982-08-01), Wilkinson et al.
patent: 4368118 (1983-01-01), Siposs
patent: 4475932 (1984-10-01), Hull et al.
patent: 4516398 (1985-05-01), Wuchinich
patent: 4555253 (1985-11-01), Hull et al.
patent: 4560373 (1985-12-01), Sugino et al.
patent: 4698207 (1987-10-01), Bringham et al.
patent: 4772256 (1988-09-01), Lane et al.
patent: 4775360 (1988-10-01), Lane et al.
patent: 4876066 (1989-10-01), Bringham et al.
patent: 4932987 (1990-06-01), Molina
patent: 4976682 (1990-12-01), Lane et al.
patent: 5055198 (1991-10-01), Shettigar
patent: 5061236 (1991-10-01), Sutherland et al.
patent: 5098376 (1992-03-01), Berry et al.
patent: 5149341 (1992-09-01), Taylor et al.
patent: 5300022 (1994-04-01), Klapper
F. S. Cross et al., "A New Type Suction Tip Especially Design for Intreacardiac Surgery", J. Thoracic Cardiovascular Surg. 41:3:412-415, Mar. 1961.
S. Bostrom et al., "New Microsurgical Suction Tubes", Acta Neurochirugica, (1990), 104:156-157.
H. J. ten Duis et al., "Improved Hemocompatibility In Open Heart Surgery", Trans. ASAIO, (1978) 656-661.
T. Hirose et al., "Reduction of Perfusion Hemolysis by the Use of Atraumatic Low-Pressure Suction", J. Thoracic Cardiovascular Surgery, 47:2:242-247, Feb. 1964.
M. Peskovitz, "A History of Surgical Suction from Dieulafoy to Gomco", Surg., Gyn. & Obs., (Sep. 1989), 169:3:266-274.
G. Spencer et al., "A Non-clogging Suction System", Clinical Orthopedics, 128:200-201, Oct. 1977.
L. Tinkler, "A Complete Suction System for Operative Surgery", Brit. J. Surgery, 64:653-654, Sep. 1977.
R. Dyer et al., "Atraumatic Aspiration of Whole Blood for Intraoperative Autotransfusion", Am. J. Surg., (May 1972), 123:510-514.
Y. Hosada, "A New Pericardial Sucker: Omni Sucker for Better Aspiration of Interpericardial Blood", Ann. Thorac. Surg., 46:5:582-583, Nov. 1988.
Blackshear, Jr. Perry L.
Clague Cynthia T.
Breimayer Joseph F.
Green Randall L.
Malilay Grace P.
Ruhl Dennis
The Regents of the University of Minnesota
LandOfFree
Jet driven surgical suction device and method of using does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Jet driven surgical suction device and method of using, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jet driven surgical suction device and method of using will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2178261