Surgery – Instruments – Surgical mesh – connector – clip – clamp or band
Patent
1997-01-02
1998-06-16
Buiz, Michael
Surgery
Instruments
Surgical mesh, connector, clip, clamp or band
606139, 606213, 606215, 606142, A61B 1708
Patent
active
057661880
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a medical suturing material which is sutured to, for example, an excised portion of a tissue of an organism, and more particularly, to an medical suturing material of a type arranged to be loaded into an automatic suturing device.
BACKGROUND ART
Excision of a diseased part of a tissue of an organism generally is performed by a surgical operation. In order to reduce burden of a patient, the operation has been performed with an endoscope.
For example, an excision operation using an automatic suturing device has been performed. The automatic suturing device is introduced into the organism through a perforation to excise the diseased part and suture the excised portion. By using the medical suturing material, an advantage can be realized in that the necessity of incision of the diseased part can be eliminated. Therefore, the automatic suturing device has, at the leading end thereof, a suturing mechanism portion for holding the excised portion of the tissue of an organism. Moreover, the suturing mechanism portion has a plurality of staple lines for performing the suturing operation and a cutting mechanism, such as a knife, for cutting the tissue of an organism.
As a matter of course, use of the automatic suturing device in the surgical operation is advantageous in shortening the time required to complete the suturing and incision operations and in simplifying the operation.
In a case where the automatic suturing device is used when an operation of a weak tissue, such as the lung, the branch, the liver, the alimentary canal or the like is performed, the suturing operation using the staples has a risk that the tissue tears. In a case of an operation of, for example, the lung, there is a risk that air leakage takes place. Since the air leakage is a fatal problem for the patient, reliable prevention is required.
Accordingly, a method has been employed in which a suturing material is previously loaded into the automatic suturing device so as to be sutured to the excised portion of the tissue of an organism.
In this case, a contrivance is required to enable the suturing material to be loaded into the automatic suturing device so as to reliably be brought to the diseased part. For example, a structure has been suggested in which a knit cloth having flexibility is placed on a felt-type suturing material, followed by sewing the two side lines with tacking threads to form a cylindrical shape.
However, the suturing material formed by sewing the knit cloth having flexibility with the sewing thread so as to be loaded into the automatic suturing device can be contracted into the direction of insertion when the automatic suturing device is inserted into the organism to be brought to the diseased part, thus resulting in the suturing material being displaced to the base portion of the automatic suturing device or being turned around the automatic suturing device. That is, a problem of twisting takes place.
If the suturing material is displaced or turned, appropriate treatment cannot smoothly be performed. In particular, an operation of a type which is performed with an endoscope encounters a critical problem.
DISCLOSURE OF THE INVENTION
In view of the foregoing, an object of the present invention is to provide a medical suturing material which is capable of preventing displacement and turn when an automatic suturing device is inserted, for example, capable of reliably preventing air leakage when used in an operation of the lung.
To achieve the foregoing object, a medical suturing material according to the present invention is loaded into an automatic suturing device having a staple line when used, the medical suturing material including: a main suturing material on which a shape maintaining support member made of a film or a sheet having rigidity is superposed, wherein the main suturing material and the shape maintaining support member are joined together by sewing by using suturing threads along the two widthwise side ends thereof to be formed into a cylindrical shape so
REFERENCES:
patent: 4834090 (1989-05-01), Moore
patent: 5397324 (1995-03-01), Carroll et al.
Buiz Michael
Kabushikikaisha Igaki Iryo Sekkei
Pham Tina T. D.
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