Tissue compression using surgical clips

a technology of tissue compression and surgical clips, applied in the field of tissue compression employing surgical clips, can solve the problems of difficult to achieve continuous lines, and achieve the effect of reducing the risk of tissue perforation by a clip and reducing the leakage of bodily fluids

Inactive Publication Date: 2010-12-30
NOVOGI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0020]It is an object of the present invention to provide a surgical compression clip which exerts a constant compressive force irrespective of the thickness of the tissue being compressed, and its changes in thickness during the wound healing process. Such a clip thereby reduces the chances of liquid leakage during compression and ensures necrosis in an aseptic environment, and faster healing and closure of the tissue around an opening or other type of lesion.
[0023]Another object of the present invention is to use compression clips for compressing that exert pressure along a compression line that is closer to the base of the lesion than is the clip's securing line. This assists in reducing leakage of bodily fluids.
[0024]It is a further object of the present invention to provide a surgical compression clip, and a system for applying the clip, that reduces the risk of tissue perforation by a clip.
[0027]In one embodiment of the system the clip applier includes: two arm elements selectably engageable with the compression clip, each arm element having a slot and a pin hole; a position controlling element in mechanical communication with the arm elements, the position controlling element including a first and second pin, where the first pin passes through the position controlling element and the pin hole on each of the two arm elements and the second pin passes through the position controlling element and the slot on each of the arm elements; and an activating element in mechanical communication with and operable to move the pins in the position controlling element, thereby to produce substantially scissor-like motion of the arm elements bringing them from their closed adjacent position to their open spaced apart position and vice versa; and thereby to cause the compression clip to move from its open position to its closed position and vice versa in tandem with the motion of the arm elements of the clip applier.

Problems solved by technology

Such a continuous line is difficult to attain when using surgical staples.

Method used

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  • Tissue compression using surgical clips

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Experimental program
Comparison scheme
Effect test

first embodiment

[0155]Reference is now made to FIGS. 2-3B where FIG. 2 presents a view of a non-unitary compression clip constructed according to the present invention. In FIG. 2 the clip is shown in its closed position. FIGS. 3A and 3B present a view of the compression clip shown in FIG. 2 in its open position.

[0156]Clip 10 is constructed of two shape-memory hinge springs 12A and 12B, also herein often denoted as force appliers. Typically, but without intending to be limiting, the shape-memory material is a Ni—Ti alloy. The operation of the clip relies on shape-memory effects exhibited by these materials. Springs 12A and 12B may be made of a single wire or flattened wire or strip or it may be constructed of two or more wires, flattened wires or strips connected together at their ends. Furthermore, in some embodiments, the springs may be constructed to have a coiled shape.

[0157]Clip 10 further includes two securing elements 14A and 14B, each of which has a series of teeth 20 for grasping tissue. Ea...

second embodiment

[0182]FIGS. 10-13, to which reference is now made, show various views of a clip applier constructed according to the present invention. The applier is intended for use with the surgical compression clip (slightly modified as discussed below) shown in and discussed in conjunction with FIGS. 2-3B. FIG. 10 shows the clip applier in its closed position, while FIG. 11 shows the applier in its open position.

[0183]Turning to FIG. 11 first, clip applier 50 includes insertion links 60A and 60B which are swing jointed by links 62A, 62B, 64A, 64B and central bar 66. An operating cable (not shown) is connected to the proximal end of central bar 66 and inserted into spring 52. The latter connection can be achieved by welding or any other connecting method or means known to those skilled in the art.

[0184]Insertion links 60A and 60B each have extensions (not shown) which are positioned on their distal end so that these extensions are insertable into cylindrical elements 58A and 58B. As shown in FI...

third embodiment

[0203]a compression clip constructed according to the present invention is shown in FIGS. 24A and 24B, to which reference is now made.

[0204]From FIG. 24A, which shows an exploded view of clip 610, it is readily apparent that many of the elements presented there have been encountered and described previously in conjunction with previously discussed embodiments of compression clips constructed according to the present invention. Accordingly, elements that are structurally and operationally similar to previously described elements will not be described again here. Essentially identical or equivalent elements to those found in clips 10 and 510 have been numbered as in clips 10 and 510 with the prefix 600.

[0205]Securing and compressing elements 614A, 614B and 616A, 616B, respectively, are essentially the same as in clip 510. Hinge springs 612A and 612B are unsymmetrical as in clip 510. Again, there is a bi-directional connector 617 on the shorter legs 609A and 609B of hinge springs 612A ...

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Abstract

A compression clip system where compression is used to close a tissue opening, reduce the volume of an organ, ligate dilated blood vessels or compress tissue adjacent to various other types of lesions to induce healing. Compression prevents bleeding and the leakage of body fluids into a body cavity. The opening may be surgery induced as in gastrectomies or formed naturally such as peptic ulcers and hemorrhoids. The system may include a compression clip, a suitable clip applier, a grasper assembly and an endoscope all brought to the compression site via a multi-lumen sleeve.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present application claims priority rights from “Tissue Compression Using Surgical Clips”, U.S. Provisional Application 60 / 897,842, filed Jan. 29, 2007; “Endoscopic Full Thickness Resection Using Surgical Compression Clips”, U.S. patent application Ser. No. 11 / 647,912, filed Dec. 29, 2006; and “Surgical Compression Clips”, U.S. patent application Ser. No. 11 / 647,913, filed Dec. 29, 2006. The present invention is a continuation-in-part of U.S. patent application Ser. No. 11 / 647,912, filed Dec. 29, 2006.FIELD OF THE INVENTION[0002]The present invention relates to the field of tissue compression employing surgical clips.BACKGROUND OF THE INVENTION[0003]Several methods are known in the art for joining tissue portions requiring tissue closure, particularly in the gastrointestinal (GI) tract. Methods for joining severed tissue or tissue deficiencies as a result of excisions are known. These include threads for manual suturing, staplers for ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B17/10A61B17/08
CPCA61B1/0014A61B17/0643A61B17/068A61B17/12A61B17/122A61B2017/308A61B17/1285A61B2017/00867A61B2017/00871A61B2017/0641A61B17/1227
Inventor MONASSEVITCH, LEONIDSHENHAV, BOAZHARARI, BOAZPERLE, AMIRARAD, MICHAELMILLIS, SHAHARGREENBERG, KOBBYLELCUK, SHLOMOKOPELMAN, DORONBAPAYE, AMOLROSNER, DROR
Owner NOVOGI
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