Surgery – Instruments – Means for removing tonsils – adenoids or polyps
Reexamination Certificate
1999-11-15
2001-02-27
Philogene, Pedro (Department: 3732)
Surgery
Instruments
Means for removing tonsils, adenoids or polyps
C606S110000, C606S127000, C606S128000
Reexamination Certificate
active
06193730
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus hereinafter called “surgical extractor” which is intended to be used in surgery, and more specifically in laparoscopy, to extract an organ or an element of a non-negligible size from the body of a patient during an operation. Such organ can be, for example, the spleen, the appendix or an ovary.
BRIEF DESCRIPTION OF THE PRIOR ART
There are numerous patents disclosing surgical extractors, which are devised to remove stones or tissues from the body of a patient. By way of examples, reference can be made to the following U.S. patents:
U.S. Pat. No. 4,807,826 (1989) McGIRR
U.S. Pat. No. 4,547,371 (1992) WASHINGTON
U.S. Pat. No. 5,788,709 (1998) RIEK et al
There are also patents disclosing medical extractors. By way of non-restrictive example of such patents, reference can be made to the following U.S. patent which discloses an extractor devised for removing faecal imprecations from the rectum of a patient:
U.S. Pat. No. 5,730,726 (1998) KLINGENSTEIN
There are furthermore numerous patents disclosing in apparatuses known as “surgical retractors”, which are used for separating or spacing away part of an organ or of the body of a patient during a surgery, especially a laparoscopy. By way of non-restrictive examples of such patents, reference can be made to the following U.S. patents:
U.S. Pat. No. 5,275,610 (1994) COOK INC.
U.S. Pat. No. 5,339,803 (1994) MAYZELS et al
U.S. Pat. No. 5,656,012 (1997) U.S. SURGICAL CORP.
If all these patents disclose apparatuses having a structure and a utility that may a priori be considered as similar to those of the extractor according to the invention, none of them discloses a surgical extractor which is of simple yet efficient structure and which is devised:
1—to open on one side only of its longitudinal axis, in order to grasp and catch with precision the organ to be extracted; and
2—to apply if need be a compression force onto the organ to be extracted after it has been grasped in order to reduce its side and thus to facilitate its extraction.
SUMMARY OF THE INVENTION
A first object to the present invention is to provide a surgical extractor intended to be used for extracting an organ from the body of a patient during an operation, which extractor is very simple in structure while being very efficient in use.
Another object of the invention is to provide a surgical extractor which satisfies the two above mentioned needs, thereby making it useful in laparoscopy for extracting through an orifice of small diameter (1 cm or less), organs of a non-negligible size which are in fact very superior to those of stones or tissues. By way of non-limitative examples of such of organs of non-negligible, reference can be made to the spleen, the appendix or the ovaries.
The surgical extractor according to the invention is characterized in that it comprises:
a first portion hereinafter called “body”, which body is thin, rigid and rectilinear and has a longitudinal axis, a first end from which an handle integrally projects perpendicularly to the longitudinal axis, and a second end opposite to the first end;
a second portion hereinafter called “gripper”, which consists of at least one flexible rod having a first end connected to the second end of the body in a foldable manner with respect to a transverse axis, said at least one rod also having a second opposite end
a third portion hereinafter called “pusher”, which is rigid and rectilinear and has a first end that is thin and connected to the second ends of the rods, and a second opposite end provided with a pushing button; and
retaining means for retaining in a slidable manner the second end of the pusher onto the first end of the body, once the straps have been folded about the transverse axis in order to be positioned together with the pusher flat onto the body.
In use, when a person pushes on the button while he/she holds the handle, he/she forces the straps to bend and move away from the body and thus to make it possible for the straps to grasp in a radial direction an organ to be extracted from the body of a patient and to grip this organ in order to remove it from the body of the patient.
Preferably, the first end of the body has a portion adjacent to the handle that is U-shaped in transverse cross-section and is sized to receive the pusher in a sliding manner when the gripper and pusher are folded onto the body. In such a case, the retaining means consist of hooks which are located within the U-shaped portion at the first end of the body, and are positioned and sized to snap onto the pusher when the gripper and the pusher are folded onto the body.
Preferably also, the pusher is provided with radial slots positioned in such a manner as to lock in a removable manner onto the hooks located within the U-shaped portion of the first end of the body when the gripper and pusher are folded onto this body. In use, these slots allow the pusher to be locked into a given position relative to the body.
The invention and its advantages would be better understood upon reading the following non-descriptive description of a preferred embodiment of the invention, made with reference to the accompanying drawings.
REFERENCES:
patent: 4347846 (1982-09-01), Dormia
patent: 4807626 (1989-02-01), McGirr
patent: 5064428 (1991-11-01), Cope et al.
patent: 5147371 (1992-09-01), Washington et al.
patent: 5275610 (1994-01-01), Eberbach
patent: 5339803 (1994-08-01), Mayzels et al.
patent: 5656012 (1997-08-01), Sienkiewicz
patent: 5730726 (1998-03-01), Klinggnstein
patent: 5782839 (1998-07-01), Hart et al.
patent: 5788709 (1998-08-01), Riek et al.
Instruments Médicaux G.B. Inc.
Philogene Pedro
Robic
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