SU820810A1 - Device for tightening ligature knots - Google Patents

Description

one

The invention relates to medical technology, namely to surgical stapling instruments.

A device for tightening ligature knots is known, which contains two parallel branches, one of which has a tooth at its end with a groove under the ligature and a movable amka with a jumper fl.

The disadvantage of this device is the difficulty of loops in the depth of the wound. This is due to the fact that the first loop (when immersed, resting on the end surface of the tooth, creates additional friction in the slip of the ligature.

Thus, this deficiency makes atraumatic suturing in the depth of the wound difficult.

The purpose of the invention is to provide atraumatic suturing in the depth of the wound.

The goal is achieved by the fact that an additional groove is made in the device on the tooth, which is located perpendicular to the groove under the ligature.

FIG. 1 shows a device for tightening ligature nodes.

general view of FIG. 2 shows the device when the second loop in FIG. 3 - device at the time of the imposition of the second loop on the first.

The device consists of two fastened mobile frame 1 parachute branches 2 and 3, which in the closed state form two lumens A and B, guiding groove C, and

0 crack G and bevels D.

The first loop 4 and the second loop 5 are placed in the guide groove Viv lumen A, respectively, at the first loop 4 and jumper 6, which is integral with frame 1, is placed in the lumen B.

At the end of one of the branches, a tooth 7 with a groove 8 under the ligature is made, holding the first loop 4.

9 tooth tip nose 7

The closed position of the branch is recessed in hole 10 of the other branch. The end face 3, provided with tooth 7, has an additional groove 11, perpendicular-. coolant groove 8. Movement 1 from 5 relative to branches 2 and 3 is limited by stops 12 and 13. Supports 12 and 13 are spring arms formed in the branch by working out the middle part between two parallel slits 14 and 15. Length

the sampling, determining the course of frame 1, corresponds to the distance between loops 4 and 5 in that position of the tool, corresponds to the conduct of the loops in the depth of the wound.

The frame 1 is moved relative to the branch by pushing the thumb holding the tool onto the bar 16. The tight bond of the branch is achieved by the interaction of the inner surface of the frame 1 with the supporting surfaces 17 and 18 on the outer surface of the branches. The front end of frame 1 has recesses 19 and 20 for placing therein free ends 21 and 22 of the ligatures that fall into them during the advancement of the tool into the depth of the wound.

The process of overlaying a node using the device is as follows.

The elongated ends of the ligature, previously passed through the stitched fabrics, at a convenient distance from the wound alternate between the first and second loops 4 and 5. Then the second loop 5 is inserted into the opened lumen A of the instrument (Fig. 2J. For this, pressing the spring the console of the stop 13, the frame 1 is moved to the rearmost position, the inner surface of the frame 1 coming out of interaction with the supporting surfaces 17 and 18 branches 2 and 3, the Jumper b of frame 1, interacting with the bevel D between the branches will open them.

A second loop 5 is inserted into the gap between the jaws. Next, frame 1 (by pressing your thumb on the bar 16) is moved forward to the position shown in FIG. 1. The jumper b moves into the lumen B, the inner surface of the frame 1 interacts with the supporting surfaces 17 and 18 branches 2 and 3, the lumen L closes. Pull the free ends 21 and 22 of the ligature with one hand, with the other, immerse the tool into the depth of the wound. Frame 1 is restrained from being supported by the stop 13. The first loop 4, held by the guide groove B, is located in the groove 11, and the second loop 5, which is located in the gap A between the branches (Figure 1), plunges into the depth of the wound . When the first stitch 4 reaches the stitched fabrics, they become compressed with the necessary force. Then, due to the effect of the thumb on the bar 16, the frame 1 is moved forward.

When the inner surface of the frame 1 comes out of interaction with

the bearing surfaces 17 and 18 of the nepeivibWka 6 branes, along the bevels D, enter the slot G, pushing the branches apart. Tension of the free ends 21 and 22 of the ligature causes the ligat melody areas to loop around the base of the tooth 7, with the first loop 4 being held in position pressed to the fabric by the groove 8 (Fig. 3).

Further movement of the frame 1 to the stop 12 causes the second loop 5 to slide along the outer surface of the tooth 7 and bypass the spout 9 to connect with the first loop, forming a knot. The tool is removed from the wound.

The disassembly tool for cleaning is done as follows.

Pressing the finger, they sink the spring Konkol of the stop 12 into the depth of the branch 2, and the frame 1 is moved forward until it is completely separated by the collection. Now the tool is easily cleaned, then sterilized and easily assembled, for which frame 1 is brought into the jaws to the extreme rear position (Fig. 2).

In such a position, the instrument is supplied to the surgeon for applying with the help of the node in hard-to-reach places the surgical field.

In the device, loops 4 and 5 do not come into contact with the tool surfaces in the period of the submerged knot into the depth of the wound. They are respectively in the groove 11 and the lumen D. This causes easy movement to the site of the knot, which improves the operation of the tool.

Thus, the design of the device provides atraumatic suturing in the depth of the wound. The use of the device improves the technique of the operation of overlapping nodes, reduces the time required for the formation of ligature nodes.

Claims (1)

1. USSR author's certificate No. 2568137, cl. A 61 B 17/04, 1976. at / 3 sixteen