Surgery – Instruments – Cutting – puncturing or piercing
Patent
1997-03-14
1998-11-10
Lewis, William
Surgery
Instruments
Cutting, puncturing or piercing
30133, A61B 1732
Patent
active
058337032
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a surgical cutting tool.
When using such a tool, for example surgical scissors, or a surgical scalpel, the surgeon normally needs to have at least one assistant who can carry out suctioning at the site where the surgical tool is being used, so as to remove blood and other body fluids which are released by the use of the tool and which would otherwise obscure the surgeon's field of view. Such an assistant may also carry out ancillary tasks, for example cauterization.
However, the need to involve an assistant has a number of disadvantages. One of these is that the carrying out of activities by the assistant at the same site as that where the surgeon is working may impede the surgeon's activities, and thus render them more difficult, or at least make the operation more lengthy. Furthermore, if it were not necessary for the assistant to carry suctioning and cauterization, the assistant might be more usefully employed in other tasks to assist the surgeon, and under some circumstances no assistant might be required at all.
According to the present invention there is provided a surgical cutting tool which is provided with means enabling suction to be applied to the site of operation of the tool. In two particularly preferred forms of the invention, the surgical tool is a pair of surgical scissors or a surgical scalpel. Optionally, the surgical tool may be provided with means for effecting cauterization.
The surgical cutting tool according to the invention may be provided with means for clamping tissue on which the surgeon is operating.
The invention will now be further described with reference to the accompanying drawings, in which:
FIG. 1 shows a pair of surgical scissors according to the invention;
FIG. 2 shows a view on an enlarged scale of the tip of one type of blade which may be used in the scissors of FIG. 1;
FIG. 3 shows an alternative type of tip for use in the scissors of FIG. 1;
FIG. 4 shows a second embodiment of surgical scissors according to the invention;
FIGS. 5a to 5d show a first combination of scissor tip configurations which can be used in the scissors of FIG. 4;
FIGS. 6a to 6d show a second combination of tip configurations which can be used in the scissors of FIG. 4;
FIGS. 7a to 7d show the incorporation of a clamp in a pair of surgical scissors, and are respectively a plan view with the scissors closed, a plan view with the scissors open, a side view with the scissors closed, and a side view with the blades separated for the sake of clarity, to show their construction;
FIG. 8 shows a pair of scissors incorporating means for cauterization;
FIG. 9 is a side view of a scalpel according to the present invention, incorporating both suction and cauterization means;
FIG. 10 is a view taken at right angles to FIG. 9, from the dorsal aspect or the scalpel showing the same scalpel, but with a forceps tip and metallic extension thereof omitted for clarity;
FIG. 11 illustrates a modified scalpel blade, seen from the non-cutting edge thereof;
FIG. 12 is a side view of a suction/cautery unit provided with means for removably receiving a scalpel;
FIG. 13 is a section taken on line 13--13 in FIG. 12;
FIG. 14 shows a further embodiment in the form of a pair of forceps provided with a blade holder;
FIGS. 14a and 14b are cross sections through the forceps of FIG. 14, on a larger scale, taken on lines A--A and B--B respectively;
FIG. 15 shows the forceps or FIG. 14 in a view taken at right angles thereto;
FIG. 16 shows the forceps in the view of FIG. 15, but with a blade in position; and
FIG. 17 shows the forceps in a view at 180.degree. to that of FIG. 15.
Referring to the embodiment of the invention shown in FIGS. 1 to 3, this is in the form of pair of surgical scissors 10 having members 12 and 14 which are connected by a pivot 16 and which have finger openings 18 and 20 respectively and blades 22 and 24 respectively.
The blade 24 can be conventional in construction, but the blade 22 has a tip portion 26 which is modified for the purposes of the present invention. One form of modifi
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patent: 2751908 (1956-06-01), Wallace
patent: 3807406 (1974-04-01), Rafferty et al.
patent: 4049002 (1977-09-01), Kletschka et al.
patent: 4375218 (1983-03-01), Digeronimo
patent: 5071418 (1991-12-01), Rosenbaum
Lewis William
Manushakian Hagop Samuel
Weisselberg Martin Christopher
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