Instrument for tightening ligature knots

The tool relates to surgical instruments for applying ligatures and can be used in all fields of medicine for stapling tissue, and for clamping the anatomical structures.

Currently, most of the techniques, especially in endosurgery, aimed at crushing any of the anatomical structures, perform by means of metal clips.

However, in some situations, the clipping is insufficient because of the possibility of slippage of the clip with the subsequent development of complications. When clamped large structures do not always have the length of the clip. You should also consider the relative cost of the clips and tools for the implementation of clipping.

In such cases, using ligation body loops of yarn with fixation of the special node. There are ready-made endometry, however, due to the high cost of their use is limited.

Known surgical instrument containing an elongated housing with installed inside the movable rod having a working end in the form of a hook for holding the ligature and protruding from the housing outside end in the form of the handle (refer to as. the USSR # 65769, And 61 In 17/04, 1946).

Known tool enables overlay suture and ligation of the body, but it does not provide delay ligature nodes and can not is t to be effectively applied.

Closer to the proposed invention is a Tool for tightening the ligature nodes” (see the description of the as of the USSR №552077, And 61 In 17/04, 1977), containing an elongated body with a working end for interacting with the ligature loop having a lateral slot for output ligatures and mounted inside a movable rod with a working end for holding the ligature.

The tool, as the USSR №552077 provides a convenient tightening the ligature nodes, but has a complex structure, limiting its scope. In particular, due to the shape of the working parts and their dimensions, it cannot be applied when endosurgical operations or in operations where the delay ligature units is produced through the trocar sleeve.

The present invention solves the task of creating a structurally simple tool to tighten the ligature nodes that can provide them with delay in any cavity or wound when the operations of all types.

The technical result of the invention is an improved interaction with the tissues and organs of the working parts of the instrument, ease of maintenance and operation, ease of operation, reduction of time of the operation.

The essence of the invention is expressed in essential features, in which the tool for tightening the ligature nodes containing elongated body is a work end to interact with the ligature loop, having a lateral slot for output ligatures and mounted inside a movable rod with a working end for holding the ligature, in contrast to the nearest analogue, has an elongated body made under clearance endosurgical port or trocar, and the bar is spring loaded and has a protruding from the housing outside end in the form of the handle, with the working end of the rod is made in the form of a hook, located on the opposite side of the slot to exit ligatures can be moved by an amount at least equal to the distance from the working end of the body to oriented to the handle end of the slot to exit ligatures.

Given a set of essential features of the claimed invention sufficient to achieve the technical result in all cases to which the requested amount of legal protection.

In some cases, of its execution or use of the tool can have an elongated body in the form of a tube and the handle in the form of a ring and/or traverse.

The causal link listed signs with the technical result achieved by the proposed instrument is that the implementation of its elongated body under clearance endosurgical port or trocar causes, in particular, the minimum dimensions of its cross with the treatment and thus, it is possible to use this tool in almost all areas of medicine.

Spring-loaded pin allows you to do useful tool due to self-return the rod to its original position with the simultaneous withdrawal of the ligature into the side slot on the housing. This work is also ensured by the arrangement made in the shape of a hook, the working end of the rod opposite the specified slot. The ability to move the hook by an amount at least equal to the distance from the working end of the body to oriented to the handle end of the slot to exit ligatures ensures the advancement of the hook to capture ligatures with its location opposite the slots at any distance from its ends.

The actual implementation of the working end of the rod in the form of a hook is the most simple solution of the ligature element capture, which makes the construction of cheap and high-tech.

The usability of the tool also contributes to the implementation of the speaker from the housing outside end of the rod as a handle, because the handle facilitates the extension of the hook from the housing during operation and does not require the attention of the surgeon.

The handle is made in the form of a ring (which may be bent from the same terminal), and/or in the form of the bar, along with elongated building the catfish from the tube also contributes to the convenience and does not complicate the design tool.

The invention is illustrated in the drawing, in which figure 1 is a perspective view of a tool for tightening the ligature nodes and figure 2 - cross section a-a shown in figure 1.

Tool for tightening the ligature nodes includes an elongated housing 1 with a working end 2 to communicate with the ligature loop. An elongated housing 1 has a lateral slot 3 to exit ligatures and mounted inside the housing 1, the movable rod 4 with the working end 5 for holding the ligature. The elongated housing 1 is made under clearance endosurgical port or trocar. The movable rod 4 is spring-loaded by a spring 6 and is protruding from the housing 1 non-working end of the handle 7. The working end 5 of the rod is made in the form of a hook 8, located on the opposite side of the slot 3 to exit ligatures can be moved by an amount at least equal to the distance from the working of the elongated body 2 of the housing 1 to oriented to the handle 7 of the end of the slot 3 to exit ligatures.

After flashing tissues or winding anatomical structures of the ligature output. In vitro form the site. Clicking on the handle 7, push the working end of the rod 4, i.e., the hook 8 of the working end 2 of the elongated housing 1. Because the amount of movement of the hook 8, located on the opposite side of the slot 3 to exit ligatures at least equal to p is the is from the working end 2 to oriented to the handle 7 of the end of the slot 3, the hook 8 is guaranteed out of the elongated housing 1, regardless of its initial position along the length of the slot 3.

The latter circumstance greatly facilitates the preparation and operation of the tool, allows you to set the hook 8 at any distance from the ends of the slot 3, for example in the middle of it or, if necessary, with a bias toward the working end face 2 of the housing 1 (output of the rolling rod 4 at a greater distance). Hook 8 grasp the end portion of one of ligatures and let go of the handle 7. Since the movable rod 4 is spring-loaded by a spring 6, the hook 8 carries a ligature in the lateral slot 3 for its release. Grasp both ends of the ligature with one hand, and second hand through the working end 2 of the elongated housing 1 formed in the lower a node ligature loop in the abdominal cavity, and then a working end 2 node delay.

Remove the tool, for example, from the trocar, holding both ends of the thread form in the form of a node following ligature loop, which is lowered through the trocar and tighten.

The number of nodes impose depending on the texture of the thread.

1. Tool for tightening the ligature nodes containing an elongated body with a working end for interacting with the ligature loop having a lateral slot for output ligatures and installed inside odwazny rod with a working end for holding the ligature, wherein the elongated body is made under clearance endosurgical port or trocar, and the bar is spring loaded and has a protruding from the housing outside end in the form of the handle, with the working end of the rod is made in the form of a hook, located on the opposite side of the slot to exit ligatures can be moved by an amount at least equal to the distance from the working end of the body to oriented to the handle end of the slot to exit ligatures.

2. The tool according to claim 1, characterized in that the elongated body is made in the form of a tube.

3. The tool according to claim 1 or 2, characterized in that the handle is made in the form of a ring and/or in the form of a beam.