US2678650A - Ligation instrument - Google Patents

Description

May 18, 19 4 A. MARTONE LIGATION INSTRUMENT Filed May 8, 1951 2 Sheets-Sheet 1 INVENTOR. AGGEO MARTONE.

BY Azm/m ATTORNEY.

May 18, 1954 A. MARTONE 2,678,650

LIGATION INSTRUMENT Filed May 8, 1951 2 Sheets-SheetQ INVENTOR. AGGEO MAR TONE.

JIM/.11. W

ATTORNEY.

Patented May 18, 1954 UNITED STATES ?ATENT OFFICE LIGATION INSTRUMENT Aggeo Martone, Miami, Fla.

Application May 8, 1951, Serial No. 225,114

7 Claims.

My invention relates to ligation instruments and is particularly directed to an attachment adapted to be clamped onto a conventional hemostat and be utilized during surgical operations for placing a ligature loop into position and tightening same about a severed blood vessel, tonsil and the like.

It is a primary object of the present invention to provide a simple and inexpensive attachment for a conventional hemostat, which attachment is inexpensive in cost and susceptible of being readily clean-ed and sterilized without having to be disassembled.

A further object of the present invention is to provide an attachment for a conventional hemostat adapted to place a ligature loop at exactly the proper position on a severed blood vessel and the like, while the latter is firmly held by the hemostat, and also to permit the surgeon operating said device to tie a knot thereon easily and quickly.

A still further object of the present invention is to provide an attachment for a hemostat capable of placing a ligature at any desired position along the severed blood vessel and the like, which is in an otherwise inaccessible position, while the hemostat firmly grips the severed end portion thereof, the attachment being adjustable so that the loops of the ligature may be positioned at approximately right angles to the severed blood vessel, not withstanding the angle at which the hemostat is held with relation to the severed blood vessel.

With these and other objects in view, the invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings, forming a part of the present specification with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawings.

In the drawings in which the same characters of reference have been employed throughout the several figures to designate identical parts:

Figure 1 is a plan view of the ligator loop holdin and tying attachment shown mounted on a hemostat.

Figure 2 is a side elevational view of the combination of the attachment and hemostat shown in Fig. 1.

Figure 3 is a perspective view of the ligator attachment removed from the hemostat.

Figure 4 is a partial view in elevation of a modification of the present invention.

Figure 5 is a section taken through 5-5 of Fig.

4 with the loop holding ring removed therefrom.

Figure 6 is an elevational view of the loop holding portion or the ligator attachment.

Figure 7 is a view similar to Fig. i showing one of the various angled positions of the loop holding ring of the ligator.

Referrin now to the drawings and to Figs. 1-3 inclusive in particular, the ligator loop holding and tying attachment iii made in accordance with the present invention and shown removably mounted on a conventional hemostat i 5, consists of a ring [2 at the base of which is soldered or otherwise secured a rod i3 extending at right angles to the ring 12. The rod is which is rectangular in cros section has its free end slidably mounted in a guide is with a collar 15 secured thereon by a pin [6 to prevent the withdrawal of the rod [3 from the guide l4. To maintain the ring l2 at its extended position, as shown, which position is beyond the jaws ll of the hemostat l I, a coil spring 28 is mounted about the rod i3, extending between the ring 12 and the guide block 14. On the guide is there are a pair of opposed retaining members i8, i8 and i9, i9 extending upwardly therefrom. The members i8, i8 fit tightly on the hemostat at the pivot while the members i9, 19 which are of resilient metal, lit

over the shanks of the hemostat ii. The ligator i0 is readily positioned in place on the hemostat I i by inserting the tip of the jaws ll of the hemostat ii in the groove formed by th members l9, l9 and sliding it forwardly through and between the members l8, is until the latter members are adjacent the pivot of the hemostat and the jaws i! are pointing at approximately the center of the ring i2 and slightly forward of the ring 12.

On the rear or inner wall of the ring i2 there are a plurality of spring members 22 symmetrical ly disposed thereon, each of which is substantially L-shaped having a leg portion soldered or otherwise secured to the rear wall of the ring 92 and the other leg portion extending in a direction away from the rear wall of the ring I2. The latter leg portions of the spring members 22 are formed with a substantially arcuate loop between the ends thereof for the purpose of receiving thethread, ligature and the like as it is wound there-' about as shown. A pair of ligature guides 23 is likewise mounted on the inside wall of the ring 52, each of which has a bore Z i therein. In order to facilitate the tying of a knot in the ligature, the guides 23, 23 are positioned on a horizontally disposed plane passing through the center of thering i2. I

In the preparation of the attachment 10 it is normally removed from the hemostat I l or other surgical instrument. The thread or gut 2| to form the ligature is then Wound to form a loop with two or three turns therein to form a clove hitch when drawn tightly. The loop is then placed on the spring members 22 and the ends thereof are threaded through the bores 24, 24 and drawn until the loop is taut on the resilient members 22. The free ends of thread 2! are then laid along the attachment I B in the groove formed by the retaining members l8, l8 and I9, l9 and permitted to hang loosely as shown by Figs. 1 and 2. Then the hemostat H is slipped into place on the attachment I as was heretofore explained. The surgeon using the present. in

vention then grasps the hemostat H and opens the jaws of the hemostat as he normally does in preparing to check the flow of blood from a severed vein and the like. He places the ring l2 so as to encircle the severed vein and by exerting a' slight forward pressure on the hemostat in a direction opposed to the spring pressure 26, the jaws ll of the hemostat ll pass thru the ring I! tothe severed end of the vein. The surgeon then causes the jaws i? of the hemostat to grip the end of the vein and locking the hemostat so as to retain its grip on the severed vein. By releasing the forward pressure the surgeon had been exerting on the hemostat, the pressure of the spring comes into effect and compels the jaws l! of the hemostat to slide in a direction away from the ring I 2 so that the vein now extends through the ring I! to a position beyond the inner face of the ring i2. Now the surgeon grasps the ends of thread or gut 2! and pulls firmly thereon until the resilient members 22 yield to the continued pressure thereon and permit the thread to slip free of the ends of the members 22. The surgeon continues to pull on the thread 2| until a tight knot or ligature is formed on the severed vein. The hemostat I! is then opened so as to release the jaws IT from the vein, and the instrument is removed from the vicinity of the severed vein which is now ligatured. The thread 2i is then cut at any desired position along its length.

Figures 4-7 inclusive show a modification of the present invention, which modification is similar thereto in most respects except for the manner of mounting the loop retaining ring in order torender same adjustable. A collar 25, secured to the rod 28, forms a stop for a coiled spring (not shown). At the free end of the rod 26 there is secured a for 2? curved upwardly therefrom. The end portions 28 of the fork 21, 2'! have a slot 33 therein in which trunnions 30, 39 mounted along the edge wall of the ring 29 are fitted. The trunnions 39 have an octagonal cross section to permit positioning the ring 29 at various angles (see Fig. 7) to the fork 2?, 2?. A retaining member 3! is removably secured to each of the arms 28, 28 of the fork 2?, 21 so as to maintain the trunnions 36, as secured in the slots 33, 33. It is obvious that in tying the severed end of a vein, the loop of the ligature should be held at approximately right angles to the severed vein. Therefore, no matter what angle of approach the hemostat II and the attachment shown in Figs. 4-7 inclusive are positioned relative to the vein being ligatured, the ring 29 can be so positioned that a plane passing the face thereof will be perpendicular to the severed vein.

As shown Figs. 4 and 7, the fork 2'1, 2'! lies in the plane passing along the face of the ring 29 when the ring 28 is upright and forward of said plane when the ring 29 is tilted relative thereto.

Having now disclosed my invention and realizing that, in view of my disclosure many other modifications in details and construction or design will readily occur to those skilled in the art, I do not choose to limit myself except as in the appended claims.

What I claim as new is:

1. A ligature loop holding and tying attachment for surgical instruments comprising a guide block having a bore therethrough, support means slidably mounted in said bore of said guide block, locking means mounted at one end of said support means and abutting against said guide block adapted'to'prevent said end of said support means from sliding through said guide block, a ligature holding ring mounted on the other end of said support. means, spring means mounted on said support. means yieldingly urging said ring in a direction away from said guide block, a plurality of resilient ligature holding members mounted on an inner wall of said ring, a pair of diametrically disposed ligature guide means mounted on the inner wall. of said ring and means mounted on said guide block for releasably secured said attachment to a surgical instrument.

2. An attachment for a surgical instrument comprising attaching means for releasably securing said attachment to said surgical instrument, support means slidabl'y mounted on said attaching means, a ligature holding ring secured to said support means, spring means yieldingly urging said ring in a direction away from said attaching means, retaining means mounted on said ring for releasably holding a ligature loop, and ligature guide means mounted on said ring adapted to permit the tying of said loop.

3. A surgical instrument comprising a hemostat, a guide block releasably secured to said hemostat, a rod slidabiy mounted on said guide block, a ring mounted on said rod at one end thereof forward of the jaw tips of said hemostat, resilient means mounted on said rod adapted to maintain said rod in its extended position, a plurality of resilient members secured along the inner face of said ring, and a pair of members secured on opposite sides of said ring, said members having bores therethrough.

4. The structure as recited by claim 1 wherein said resilient members are secured to said ring at one end portion and have their other end portions extend in a direction away from said ring and are arcuate to form a seat for the ligature.

5. A device of the class described comprising a guide block, a pair of clamping members secured to said guide block and extending upwardly therefrom, a rod slidably mounted in said guide block, a ring secured to one end of said rod, a coil spring mounted on said rod and bearing against said guide block at one end and said ring at its other end, a plurality of resilient members mounted on the inner face of said ring having one end portion secured to said ring and their other end portions curved to form a seat therein and extending in a direction away from said inner face of. said ring, and a pair of guide members mounted on said ring along the horizontal axis of said ring, said guide members being provided with borestherethrough.

6. A ligator attachment for a hemostat comprising a guide block, a rectangular cross section bore contained by said block, a pair of clamping members secured to said guide block extending upwardly therefrom, a rod slidably mounted in said bore of said guide block, stop means secured to oneend of said rod, a forked member secured to the other end of said rod, a second stop means secured to said rod adjacent said forked member, on said rod and extending between said guide block and said second stop means, each of the ends of said forked member having slotted portions, a ring, a pair of trunnions secured to outer circumference of said ring, said trunnions being polygonal in cross section, latch means securing said trunnions in said slotted portions a plurality of resilient members secured on the inner face of said ring, and a pair of diametrically opposed guide members secured to said ring.

7. In a ligature loop holding and tying device, a ring, a plurality of resilient members mounted on a wall of said ring, said resilient members having a, leg portion extending in a direction away from said ring to thereby form a seat for a ligature, and a pair of ligature guide means mounted on said wall of said ring on diametrically opposed portions of said ring.

FOREIGN PATENTS Country Great Britain Date Feb. 10. 1938 Number

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