US 3278107 A
Description (OCR text may contain errors)
Oct. 11, 1966 H. RYGG INSTRUMENT FOR APPLYING SO-CALLED STAPLE SUIURES Filed July 22, 1964 INVENTOR. Ill/G KYQG v 'J v United States Patent INSTRUMENT FOR APPLYING SO-CALLEI) STAPLE SUTURES Inge H. Rygg, Charlottenlund, Denmark, assignor to Aktiebolaget CV Heljestrand, Esldlstuna, Sweden Filed July 22, 1964, Ser. No. 384,481
Claims priority, application Sweden, July 24, 1963,
8,219/ 63 7 Claims. (Cl. 227-143) This invention relates to an instrument for applying so-called staple sutures.
The object of the invention has been to provide a simple and cheap instrument of the just mentioned kind, which is easy to handle and enables a very precise and reliable application of staple sutures, consisting of a tissue amicable material.
To the just mentioned end of the instrument according to the present invention is essentially characterized in that it consists of two portions, one of them being a capsule containing one staple and the other one being a clamping device, the latter having two legs which are movable towards and away from each other, one of said legs having the outer end thereof formed as a staple anvil and the other one of said legs having the end thereof formed with an essentially T-shaped head. The shape of said legs is dependent on and adapted to the shape of the capsule with the staple contained therein. The T- shaped head is adapted to be introduced into a magazine to grip the capsule therein and to remove the capsule from the magazine, and then, as said legs of the clamping device are brought together, to act as a driving means to force said staple out of the capsule and bend said staple within the tissue under pressure against the anvil on the other leg end. In this case it is essential that the anvil on said leg end is correctly adapted to the capsule, and that the recesses in said anvil are correctly shaped so as to ensure a satisfying bending of said staple within the tissue.
According to the invention it has been found particularly advantageous to form the staple capsules, being a portion of the instrument, in the shape of guide rails of an oval cross-section, having one side and both ends open to enable introduction of the T-shaped head from one end and further displacement thereof through said capsule to expel said staple. It has been found to be preferable to make the axial length of the capsules about twice the height of staples, and to make the height of the head on the leg of the clamping meansessentially the same as the height of the staples.
The invention will be disclosed in more details hereinafter with reference had to the accompanying drawing.
FIGURE 1 shows as an example one embodiment of the clamping means forming one part of the instrument according to the invention and being made in a tweezerlike form;
FIGURE 2 illustrates another embodiment of the clamping means part of the instrument according to the invention, shaped as a pliers;
FIGURE 3 shows to an enlarged scale the outermost end portion of one of the legs of the pliers;
FIGURE 4 illustrates a capsule, housing one staple;
FIGURE 5 illustrates a magazine;
FIGURES 6 and 7 illustrate two steps in the utilization of the instrument according to the invention when applying a staple suture.
The clamping part of the instrument 10 according to the invention, shown as an example in FIG. 2 has two crossed, pivotally connected legs 11, 12. One of the legs 11 has on the outermost end thereof a staple anvil 13 facing the other leg 12. The last mentioned leg 12 has at the outermost end thereof a T-shaped head 14, FIG. 3.
3,278,107 Patented Oct. 11, 1966 The capsule 15 housing a staple 16 is shown in FIG. 4. Each one of the capsules houses one staple 16 of an ordinary, U-shaped design, which staple is made of a tissue amicable material such as rustproof suture wire. The capsule 15 has been designed as a guide rail, having both ends open and being of an oval cross-sectional shape with one wall open. The staple capsules are arranged in a row in a magazine 18, and they are biased in direction to one of the open ends of the magazine by means of a spring 19. In front of the opening 17 of the staple capsules the magazine 18 is formed with a similar opening 20, and in the uppermost wall the magazine has an opening 21 aligned with the foremost capsule in the row to enable withdrawal of said capsules.
The axial length of each one of the staple capsules 15 is about twice the height of the staples 16, and the T shaped head 14 on the end portion of the leg 12 is of about the same height as that of the staples.
The instrument so far described is utilized in the following manner for applying so-called staple sutures:
First, the T-shaped head 14 is introduced into the uppermost portion of the foremost staple capsule 15 in the magazine 18, which capsule then frictionally grips the head 14 so that when the leg 12 moves away from the magazine the capsule may be withdrawn out through the opening 21. To improve the grip of the head 14 on the inner surface of the capsule the leg end 12 with said head 14 may be provided with a slot 22, in which case the shanks on either side of the slot 22 are slightly bent apart from each other and are resiliently forced together as said head is introduced into the capsule 15.
Then, the capsule 15 housing the staple of a tissue amicable material is lifted out of the magazine 18, after which the instrument is moved to the place where the staple suture is to be applied, FIG. 5. Thereafter, as the legs are brought together, the staple will be forced out of the capsule 15 and into as well as through the tissues 23, 24, after which the staple 16 is bent against said anvil 13, which latter for this purpose has specially shaped recesses 25 which ensure the correct bending of the staple suture within the tissue, so as required from the suture for the just mentioned purpose.
The clamping means part as shown in FIG. 1 corresponds to the principal design thereof entirely with that of the clamping means part as shown in FIG. 2, with the exception that it is made in a tweezer-like shape.
The advantages of the instrument according to the invention appear to be so obvious to those skilled in the art that any description thereof ought to be superfluous. Therefore, there only remains to mention that numerous modifications and alterations as to details may be carried out within the limits of the inventive idea.
What I claim is:
1. Means for app-lying staple sutures into tissues comprising, a staple magazine and staple-clamping means, the clamping means having two legs movable toward or away from one another, one of the legs having an anvil-shaped end provided with recesses shaped to deform a staple, the outermost end of the second leg being provided with a gripping head; the magazine being a unit separate from the clamping means, the magazine containing at least one capsule in which a staple is housed, said capsule being arranged to be gripped by the gripping head of the clamping means while the capsule is contained within the magazine and withdrawn from the magazine by movement of the clamping means relatively to the magazine; the staple within the capsule thus carried by the head being expelled from within the capsule by bringing the ends of the legs of the clamping means forcibly against each other on opposite sides of the tissue to secure parts thereof together.
2. Means according to claim 1, wherein the axial length of said capsule is about twice the height of the staple and wherein the height of the head of the leg of said clamping means is essentially the same as the height of said staple.
3. Means according to claim 1, wherein the staplecontaining capsules are shaped as a guide rail of an oval cross-section, both ends of the capsule being open to enable the introduction of the head on one end of one leg of the clamping means when said head is entered through one of the open ends of the capsule and then moved through the capsule to allow the expulsion of the staple out of the other openend of the capsule to cause the staple to be forced into the tissue.
4. Means according to claim 1, wherein the magazine consists of an elongated element containing a plurality of staple-holding capsules placed one behind the other in the magazine, the magazine being open at one end and the capsules being biased toward said open end, the head on one of the legs of the clamping means being substantially T-shaped for entry through the open end of the magazine to fit into the capsule located thereat and remove said capsule from the magazine and thereafter expel the staple from the withdrawn capsule by the bringing together of the two legs of the clamping means.
5. Means according to claim 1 in which the gripping head is slotted to divide it into resilient sections which frictionally grip the interior surfaces of the capsule and enable the capsule to be withdrawn from the magazine and carried by the gripping head to the point of insertion of the staple.
6. Means for applying staple sutures comprising, a
staple capsule of substantially channel shape, a clamping tool having pivotally joined legs, one of the legs having an anvil at one end and the second leg having a bifurcated end conforming in cross section to the interior shape of the capsule so that when said end of the tool is inserted within the capsule it will frictionally grip the inner surfaces of the capsule and enable the capsule to be carried to a point of application of the staple by the clamping tool, the capsule being carried by the bifurcated end solely by its gripping engagement with the capsule, a staple contained within the capsule and positioned at one end thereof so that when the bifurcated end of the clamping tool is inserted into the capsule to thereby pick up the capsule, the bifurcated end can be inserted so that it will not dislodge the staple from within the capsule.
7. Means for applying staple sutures according to claim 6, wherein the capsule is one of a row of similar capsules housed in a magazine, said magazine having end and top openings, spring means for biasing the row of capsules toward the end opening to thereby cause the foremost capsule in the row to be exposed at the end opening and top opening, the bifurcated end of the clamping tool being entrant through said openings to enable it to engage the foremost capsule and lift it from out of the magazine.
References Cited by the Examiner UNITED STATES PATENTS GRANVILLE Y. CUSTER, JR., Primary Examiner.