FR2676351A1 - ASSEMBLY FOR MICRO-SURGICAL SUTURE. - Google Patents

Abstract

The present invention relates to an assembly for microsurgical suture. This set includes a flat support, the edge of which is used to receive one or more microsurgery needles, one or two suture kits (2) comprising one or more needles (101, 102), the thread of which is wound longitudinally on the support (1), and a closed package, in which the support (1) is spread, with the support kit arranged and blocked thereon.

Description

The present invention relates to a microsurgical suture assembly.

  a set for suture, as used in micro-surgery, ophthalmic, plastic, vascular, etc. It has already been proposed such an assembly comprising: a flat support comprising two parallel flat faces, extending in two dimensions, one said longitudinal, or length, or height, and the other said transverse, or width; this support has a thickness remaining limited, sufficient to provide a wafer in at least a portion of its periphery or periphery; this support, symmetrical with respect to a longitudinal axis, has two identical longitudinal edges, and two identical transversal edges; each longitudinal edge has between its two ends a recess trapezoidal profile whose edge extends along a major part of the longitudinal dimension of the longitudinal edge considered; at least one longitudinal slot with contiguous edges is formed from at least one transverse edge, on a straight portion between two protruding parts; this support is made of a cellular plastic material, with closed cells, relatively rigid but elastically flexible, not friable, and of sufficiently soft consistency to be perforated by a needle without altering the cutting edge or stitch of the latter at least one necessary suture, comprising a microsurgical needle whose end opposite the tip is connected to a strand of surgical wire; this needle is housed in a recess of the support, its tip being stitched in the slice of the latter; the strand of wire is wound on the support around the two straight portions of the transverse edges, being immobilized on the support, by inserting a portion of said strand into the contiguous edge slot of said support a closed package defining a flat box of form and

  dimensions adapted to those of the flat support, having two longitudinal edges

  dinals and two transverse edges; the flat support on which the

  necessary suture is wedged in the box, longitudinally and transversely

  salement, against the transverse and longitudinal edges respectively of

said box.

  An assembly as previously described has the following disadvantage in the practice of microsurgery: The transverse wedging of the support against the longitudinal edges of the box of the package is obtained by two pairs of rounded and flat protuberances, each pair being arranged at one end of the support along its length, and two protuberances located on the same longitudinal edge delimiting on either side the recess of the latter. These protuberances limit the accessibility of the surgeon to the gripping of the needle with a needle holder, and therefore in practice hinder its

  manipulation of the suture kit.

  The present invention therefore aims to overcome this disadvantage. According to the present invention, from one end to the other of at least one longitudinal edge of the flat support, said edge comprises a tongue of longitudinal extension, then a recess of concave profile determining an opening angle of at least equal at 100, extending along the length of a point (A) located at a first distance (a) from the tongue, to provide a recess relative to the latter, at another point (B) situated at a second distance (b), greater than the first distance (a), to provide a gripping appendage of the flat support, and finally a tab

  of longitidunal extension set back from point (B).

  "Opening angle" of the recess concave profile means the angle formed by the tangents to said profile at points (A) and

(B).

  According to the present invention, it is therefore chosen to obtain the long-term

  tudinal support, against the two transverse edges of the packaging box, by the tongue and the tab, at the two ends respectively of said support, and the transverse wedging, against the two longitudinal edges of the packaging box, by both protruding parts of the two longitudinal edges respectively, each located between a recess and the support leg The wedging function of the support, avoiding any attrition of the surgical thread, is therefore ensured by means substantially aligned in the center of the support, and limited transverse extension, namely the tongue and

the paw.

  These wedging means according to the invention are totally distinct from the recess (es) present on the support, limited and each determined according to the prior art previously discussed by two rounded protuberances,

  serving both longitudinal and transverse wedging in the packing box.

  Therefore, the parts of the support on either side of the relative alignment of the tongue and the tab become free from any other functional stress and use Under these conditions, the housing recess or recesses of a needle can be configured or shaped with relatively free access to the microsurgeon needle holder, and in particular with a relatively large angular aperture, facilitating the manipulation of the needle.

necessary suture.

  Furthermore, according to the invention, it should be noted that the profile selected for the recess determines, on the side of the tab, a gripping appendage,

  making it even easier to handle the media.

  Preferably, according to the invention, the flat support has at least

  a longitudinal winding section of the surgical strand, disposed transversely

  noticeably between the relative alignment of the tongue and the tab and a longitudinal edge of the support. Such a characteristic is very different from the previously discussed prior art, for which the longitudinal winding section was located at the center of the support, whereas according to the invention is located on the side of said support This further facilitates handling

surgical wire.

  The present invention is now described with reference to the accompanying drawings, in which: Figure 1 shows in perspective a flat support part of a set for micro-surgical suture according to the invention Figure 2 shows a view from above of the support 3 represents the suture kit forming part of the assembly according to the invention; FIG. 4 is an exploded view of the package forming part of the assembly according to the present invention; FIG. for micro-surgical suture, according to the invention, composed of the support according to FIGS. 1 and 2, on which the suture kit according to FIG. 3 is arranged and blocked, the whole being inserted

  and wedged in the package according to Figure 4, shown in dashed lines.

  According to FIGS. 1 and 2, the flat support 1 extends on the surface in two dimensions, one said longitudinal, length or height, and the other said transverse, or width It has a sufficient thickness, while remaining limited, to provide a periphery around its periphery or periphery 4, in which the needles 101 and 102 of the suture kit described hereinafter with reference to FIG. 3 can be stitched. This support has two longitudinal edges 5 and 6, having a profile that is almost identical, arranged transversely on either side of the support, and two

  transverse borders 7 and 8 different from each other.

  From one end to the other of each longitudinal edge 5 or 6, the latter comprises: a tongue 18, disposed substantially in the center of the support 1, of longitudinal extension and having a free end 18 beveled; this tongue has a limited width, smaller than the smallest transverse dimension of the support 1 along its length a recess 51 or 61 of regular concave profile, determining an opening angle 19, at least equal to 1000, this angle being determined by the two tangents to the concave profile of the recess, at their two extreme points A and B; this recess extends along the length of a point A situated at a first distance (a) from the tongue or from the longitudinal axis of symmetry of the support 1, so as to provide a recess 20 in the form of a notch 301 or 302 ( cf Figure 5), at another point B located at a second distance (b) of the tongue, greater than the first distance (a), to arrange on the support 1 a gripping appendage 21 of the flat support; in correspondence, as shown in particular in Figure 1, the wafer 4 of the support extends in the recess from point A to point B

  a tab 22 of longitudinal extension, having two longitudinal edges

  oblique tudinal directed towards each other; this tab 22 is set back by

  report at point B, to leave a notch 311 or 312 (cf Figure 5).

  The flat support 1 is divided in its transverse direction into two parts respectively comprising the first longitudinal edge 5 and the second longitudinal edge 6, by a longitudinal separation line 23, consisting either of a precut line or a connecting line comprising on both sides, that is to say in the two aforementioned parts, assembly elements thereof, for example of the dovetail type. Furthermore, for the immobilization by friction of the surgical wire II of the suture necessary described with reference to FIG. 3, the flat support comprises: starting from the longitudinal edge 8, and more precisely from the transverse right part of the leg 22 two slits 91 and 92 in L or J inverted opposite each other, separated but adjacent, with contiguous edges, another slit 93, extending from the longitudinal edge 7, along the line of separation 23 described above; this slot is

also with contiguous edges.

  As represented in FIG. 1, along all the periphery 24 of the flat support 1, the two edges 25 and 26 common between the slice 4 and the two

  Parallel plane faces 27 and 28 respectively have edges or rounded profile.

  As best shown in FIG. 5, the flat support 1 comprises two longitudinal winding sections 291 and 292, disposed on either side of the alignment of the tabs 18 and 22, each delimited by a first notch 301 or 302, located as said before in the recess

  19 or 20, and a second notch 311 or 312, located as aforesaid

  in the recess between the gripping appendage 21 and the leg

22.

  The flat support is made of a cellular plastic material, of the closed-pored polyethylene foam type, which is relatively rigid but elastically flexible, non-friable, and of sufficiently soft consistency to be perforated by a needle without practically altering the cutting edge or the blade.

spicy of the latter.

  The suture kit shown in FIG. 3 is in fact double. It comprises: two microsurgical needles 101 and 102, the opposite end of which is at the tip 101b or 102b or is connected to a strand 111 or 112 a single double wire It is common to both needles, presenting both

opposite strands 111 and 112.

  As shown in FIG. 5, the two needles 101 and 102 are housed respectively in the two recesses 51 and 61, the tips 101b and 102b respectively being stitched in the slice 4 of the support 1 at the

recesses 51 and 61.

  As soon as the needles 101 and 102 are stitched in the support, the wire 11 forms a loop The latter is wound on the support 1, around the two longitudinal edges 7 and 8 More precisely, the two strands 111 and 112 of the loop thus formed are wound on the two longitudinal winding sections 291 and 292 previously described, each between two notches 301/311 or 302/312 This winding determines a loop or end portion 1a, whose two strands 111 and 112 are respectively locked in the two slots 91 and 92 of the support 1 Depending on the length of the loop formed, the blocking of the end part I la can be obtained by its

  insertion into the opposite slot 93 described above.

  According to Figure 4, the package 3 comprises two parts, namely: a shell 32, thermoformed in a transparent plastic plate, defining a recess flat box 12, of shape and dimensions adapted to those of the flat support, having two longitudinal edges 14 and parallel, and two transverse edges 16 and 17, one 16 right, and the other 17 having a triangle profile; these edges 14 to 17 are relatively rigid a closure sheet 13, heat sealed to the shell 32, at the

  from its flat edges outside the box 12.

  As shown in FIG. 5, the support 1, on which the suture kit 2 is arranged and blocked, is disposed inside the box 12, being wedged longitudinally and transversely, against the edges of said box. longitudinally, the wedging occurs, by abutment of the tongue 18 bevelled against the edge in a triangle 17, and by abutment of the right part of the tongue 22, against the right edge 16 and the transverse wedge occurs by abutment of the straight portions of the longitudinal edges

  5 and 6 respectively against the longitudinal edges 14 and 15 of the box 12.

  Preferably, the density of the material constituting the support 1 is between 0.6 and 1 below 0.6, the mechanical strength of the support is insufficient, and above 1, the material becomes too hard to

  not alter the sharpness or sharpness of the suture needles.

  The use of a set of suture, the contents of which have been sterilized or is sterile, is as follows: the package 3 is opened by peeling the sheet 13 with respect to the plastic shell 32 the surgeon grasps the support 1 by one of its appendages 291 or 292 after having cut the residual part 1a of the loop of the suture, the surgeon can separate the support in two parts, thanks to the line of separation 23, one of the parts being stored for another suture, and the other part being directly used for the part used, and still holding it by a gripping appendage, the needle 101 or 102 can be extracted from the wafer 4 of the support, and the unrolled wire of the last

  the suture kit is thus ready for use.

Claims (7)

  1 / set for surgical suture, comprising a flat support (1) extending in two dimensions, one said longitudinal and the other said transverse, having a thickness sufficient to provide at least a portion of its periphery a wafer ( 4), said support having two longitudinal edges (5, 6) and two transverse edges (7, 8), at least one longitudinal edge (5) having between its two ends a recess (51, 61) whose edge (4). extends in the longitudinal direction, at least one longitudinal slot (91,92,93) with contiguous edges being formed from at least one transverse border, and said support being made of a relatively rigid but elastically flexible material not friable, and of sufficiently soft consistency to be perforated by a needle without altering the sharpness or sharpness of the latter; at least one suture kit (2), comprising a microsurgery needle (101, 102) whose end (101a, 102a) opposite the tip is connected to a strand (111, 112) of a wire (11) surgical, said needle being housed in a recess of the support, its tip (101 b, 102 b) being stitched in the edge of the latter, and the strand of wire being wound on the support around its two transverse edges, being immobilized on said support, by inserting a portion (1 la) of said strand in a slot (91,92,93) with contiguous edges of said support; a closed package (13) defining a flat box of shape and dimensions adapted to those of the flat support, having two longitudinal edges (14,15) and two transverse edges (16,17), said flat support on which is arranged the necessary suture being wedged in the box, longitudinally and transversely, against the transverse and longitudinal edges respectively of said box; characterized in that, from one end to the other of at least one longitudinal edge (5, 6) of the support (1), said edge comprises a tongue (18) of longitudinal extension, then a recess (51, 61) in profile   concave angle defining an opening angle (19) of at least 100, extends   according to the length of a point (A) located at a first distance (a) from the tongue, to provide a recess (20) with respect to the latter, at another point (B) situated at a second distance (b). ) of said tab, greater than the first distance (a), to provide an appendage (21) for gripping the flat support, and finally a tab (22) extension   longitudinal set back from point (B).   2 / assembly according to claim 1, characterized in that, the two longitudinal edges (5,6) of the flat support (1) are arranged in a similar manner, to present transversely on either side of the support, respectively a first recess (51) and a second recess (52), two suture sets (2) are disposed on the flat support, both of these kits having in common a single suture thread (11), both ends of which are respectively connected to a first needle (101) and a second needle (102), the two needles are housed respectively in the two recesses respectively, and the double-stranded loop (111,112) formed by the suture is wound around the two longitudinal edges (7,8 ) of the support, its end portion (1 la) after winding being blocked   in the slot (91, 92) with contiguous edges of said support.   3 / assembly according to claim 2, characterized in that the support   plate (1) is divided along its transverse direction into two parts comprising   respectively respectively the first longitudinal edge (5) and the second longitudinal edge (6), by a line (23) of separation consisting either of a precut line or a junction line with elements assembly of the two parts.   4 / assembly according to claim 2, characterized in that the flat support (1) comprises from at least one longitudinal edge (8) two slots (91,92) separate but adjacent, each with contiguous edges, for blocking respectively the two strands (111,112) of the terminal part   (Ila) of the loop after winding.   51 assembly according to claim 1, characterized in that, in the entire circumference (24) of the flat support, the two edges (25,26) common between the wafer (4) and the two planar faces (27,28) respectively said medium, are rounded.   6 / assembly according to claim 1, characterized in that the density   the material of the flat support is between 0.6 and 1.   7 / assembly according to claim 1, characterized in that the flat support (1) has at least one longitudinal section (291,292) of winding   strand (111,112) of surgical wire disposed transversely between the   relative engagement of the tongue (18) and the tab (22) and a border (5.6) longitudinal of said support.   8 / assembly according to claim 7, characterized in that the section   Longitudinal winding (291,292) is delimited by a first   9 che (301,302) located in the recess (19,20) between the tongue (18) and the recess (51,61), and a second notch (311, 312) located in the recess between the recess and the leg (22). 9 / assembly according to claim 1, characterized in that one (16) of the transverse edges of the packaging box (12) is straight, and the other (17) has a triangle profile.