Surgery – Instruments – Suture – ligature – elastic band or clip applier
Patent
1993-07-13
1995-02-07
Pellegrino, Stephen C.
Surgery
Instruments
Suture, ligature, elastic band or clip applier
606139, 606147, 112 8003, 112169, 289 17, A61B 1700
Patent
active
053872215
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a set of tools for suturing in deep surgical apertures or body cavities and comprising: a needle driving device having an elongated needle holder support member and a needle holder with a channel for accommodating a curved surgical needle provided with a thread, which needle holder is arranged at one end of the elongated needle holder support member which comprises an elongated member with a flexible foremost end for driving the needle out of the needle holder, and a gripping member, e.g. a pair of tongs, for gripping and extracting the needle into a position outside the surgical aperture or body cavity.
Up to now, it has been difficult to perform a suturing in deep surgical apertures or in deep body cavities. A manuel insertion of suturing needles has ordinarily been effected by means of a pair of tongs or special needle holders. This has necessitated the formation of large surgical apertures in order to have sufficient space to insert the needle through the tissue in the position desired in order to arrange the thread in a correct manner.
Different kinds of tools for suturing in deep surgical apertures or body cavities are known. An example is known from U.S. Pat. No. 3,946,740. The tool described is a tong-like instrument which makes it possible to suture in a region in which a surgeon will have difficulties in inserting the needle through the tissue to be sutured. From U.S. Pat. No. 4,935,027 a thread conducting member is known which comprises a tubular structure being slotted. This member is rather voluminous and difficult to use in small apertures.
However, the prior art tool requires that the tissues to be sutured are maintained so as to position them correctly for clamping between the two jaws of the tong-like tool. The tissue should be flap-formed so as to allow them to be arranged between the jaws which contain a needle driving instrument and a gripping member, respectively for gripping and extracting the needle after its passage through the tissue.
The suturing tool described can only be used in surgical apertures into which surgeons have a direct access and which have a sufficient size to allow other auxiliary instruments to be introduced to maintain the tissue in position. Thus, it is a drawback of the suturing tool described that it only has a limited area of use.
It is the object of the present invention to provide a tool of the type described in the introductory part which allows a surgeon to suture in smaller regions or through smaller apertures than it has previously been possible.
According to the present invention this object is achieved with a set of tools which is characterized in that the needle holder is mounted pivotally at said one end of the elongated needle holder support member, that actuating means for pivoting the needle holder and the flexible foremost end of the needle driving member are provided at the other end of the elongated needle holder support member, that the set of tools further comprises a thread conducting member having an elongated thread guide support member with two prongs arranged in V-shape arranged at one end of the elongated thread guide support member which at its other end is provided with a handle and that thread guides are constituted by means in the free end of each of the prongs.
Due to the elongated support members which may be flexible or rigid members, the set of tools according to the present invention permits an operation in deep surgical apertures or body cavities. The depth of the surgical aperture is solely determined by the length of the elongated support members. As the needle holder is pivotally mounted at the one end of the elongated needle holder support member, it becomes possible to introduce a curved needle without requiring a flap-formed shape of the tissues to be sutured.
The pivoting of the needle holder is actuated from the other end of the elongated needle holder support member. This allows the needle holder having the point of the needle positioned immediately outsid
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Pellegrino Stephen C.
Schmidt Jeffrey A.
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