Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1981-09-08
1983-08-23
Apley, Richard J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 73, 604 93, 433 95, A61M 3100, A61M 106
Patent
active
044001681
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to surgical suction apparatus for clearing a surgical wound of surgical debris, such as, blood, irrigation solutions, fragments of soft and hard (e.g. bone) tissue.
BACKGROUND ART
Surgical suction apparatus are routinely used in surgical procedures. A typical prior art surgical suction apparatus includes a suction tube having one end connected to a suction source and the other end serving as an entrance aperture into which surgical debris is sucked to clear a surgical wound. Clogging or blocking of the surgical suction apparatus, at the entrance aperture and/or along the length of the suction tube, are major problems with the typical prior art surgical suction apparatus. Such clogging or blocking results primarily from the cohesion of relatively hard fragments of tissue bound together by fragments of soft tissue. In the course of a typical surgical procedure, there may be several occurrences of such clogging or blocking and each such blockage results in an unwanted delay of time to clear the apparatus in a situation where elapsed time is usually critical.
Accordingly, there exists a need in the surgical suction apparatus art of new and improved surgical suction apparatus overcoming the clogging or blocking problem.
There exists a further need in the surgical suction apparatus art of new and improved surgical suction apparatus for varying the size of the entrance aperture to vary the suction applied to surgical debris.
Still further, there exists a need in the surgical suction apparatus art of new and improved surgical suction apparatus for both overcoming the clogging and blocking problem and for varying the suction applied to surgical debris.
A still further problem generally present with typical prior art surgical suction apparatus is that they remain in an open condition during an entire operation including time between actual use when not in the operator's hand. Air is therefore drawn through the surgical suction apparatus at all times thereby attracting bacteria laden air to the immediate vicinity of the operation from remote corners of the operating room where other equipment and observers are sometimes present and which other equipment and observers may not have received attention during pre-operative sterilization.
Accordingly, there exists a further need in the surgical suction apparatus art of new and improved surgical suction apparatus which may be closed or shut-off during periods of non-use.
SUMMARY OF THE INVENTION
The surgical suction apparatus of the present invention overcomes the above-noted prior art problem by including structure for clearing any surgical debris lodged in the entrance aperture of the apparatus and which structure may also be used to vary the suction applied to the surgical debris through the entrance aperture. The structure for clearing surgical debris lodged in the entrance aperture may be provided further with a cutter blade for engaging and cutting surgical debris lodged in the entrance aperture to enhance the clearing of the entrance aperture.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1, 2 and 3 are, respectively, side elevational, plan and end views of surgical suction apparatus embodying the present invention;
FIGS. 4 and 5 are cross-sectional views showing the actuator means of the surgical suction apparatus of the present invention at its extreme rearward and forward positions, respectively;
FIG. 6 is an enlarged partial view of the forward end of an internal control tube illustrating the manner in which a plurality of radially disposed suction holes may be of different sizes;
FIG. 7 is a side elevational view of a second embodiment of the apparatus showing the apparatus in nonsuctioning mode;
FIG. 8 is a view similar to FIG. 7 but showing apparatus in suctioning mode;
FIG. 9 is a cross-sectional elevational view of apparatus configured as shown in FIG. 7; and
FIG. 10 is an enlarged view of the distal end of the apparatus shown in FIG. 9.
DETAILED DESCRIPTION OF THE INVENTION
Referring now generally to FIGS. 1, 2
REFERENCES:
patent: 950109 (1910-02-01), Levkowicz
patent: 3169528 (1965-02-01), Knox et al.
patent: 3173414 (1975-03-01), Guillant
patent: 3777743 (1973-12-01), Birnard et al.
patent: 3863635 (1975-02-01), Swatman
patent: 4011869 (1977-03-01), Seiler, Jr.
patent: 4031896 (1977-06-01), Ronnmark
patent: 4049002 (1977-09-01), Kletsonka et al.
patent: 4307720 (1981-12-01), Weber, Jr.
"Cannula for Emptying the Small Bowel in Cases of Intestinal Obstruction", Pampari et al., Surgery, vol. 30, Issue 6, pp. 944-949, Dec. 1951.
Buechel Frederick F.
Pappas Michael J.
Witte Paul A.
Apley Richard J.
Biomedical Engineering Corp.
Kruter J. L.
Rhodes, Jr. R. Gale
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