FR2460140A1 - ANAL RETRACTOR - Google Patents

Abstract

ANAL SPREADER OF THE TYPE INCLUDING A SLIDE-SHAPED SUPPORT, EACH OF WHICH DOES, AT ITS FREE END, A SPREADING OR VALVE. EACH VALVE IS CONSTITUTED BY A SPOON-CONFORMING ELEMENT WHOSE CONVEXITY IS TURNED OUTSIDE AND IS ATTACHED TO THE CORRESPONDING ARM BY A DISAXED ARTICULATION AUTOMATICALLY PROVIDING ITS SELF-POSITIONING UNDER THE EFFECT OF PRESSURES GENERATED BY THE DISCONTINUATION.

Description

1 2460140

  Currently we know practically only one anal spacer composed of two branches articulated to one another so that a pair of their ends deviate from one another when we discard their other e .trémités; the first ends being provided with valves to be introduced into the anus of the pay while are provided means for locking the branches in the

  desired position of spacing of said valves.

  Unfortunately this spreader is a cumbersome handling

  and does not always provide the desirable spacing.

  Spreaders are also known for other uses and comprising a support in the form of slide, two arms mounted on this slide, one fixed at one end of the slide and the other mobile between the two ends of the slide and each of which carries, at its free end, a spacer member or

valve.

  The present invention aims to overcome the aforementioned drawbacks. For this purpose, in the retractor it concerns and which is of the aforementioned type, each valve is constituted by a spoon-shaped element whose convexity is turned outside and is attached to the corresponding arm by a knuckle joint providing automatic its self-positioning under the effect

  pressures generated by the spacing.

  Advantageously, to make this autostatic retractor the movable arm between the ends of the sliding support is carried by a sliding sleeve facilitating its movement along the slide support but likely to become wedged by tilting on said slide support under the effect of the pressure generated.

  by the anal cavity on the corresponding valve.

  According to a preferred embodiment of the invention each valve has, at its end intended to be articulated to one of the arms, an elbow extension at right angles and bearing on its outer face, a trunnion while each arm has, at its free end , a bearing adapted to receive the aforementioned pin, means being provided to ensure the retention of the pin in its bearing and allow the withdrawal: i Thus, it is possible to change the valves of a spacer and, therefore, to choose the valves whose dimensions are

  adapted to the morphology of the patient.

  According to a simple embodiment of the invention,

  putting a very fast set-up and withdrawal of ur valve,

2 - 246 0 14 0

  the means for ensuring the retention of its trunnion in a

  binding and allowing its removal from said bearing comprise, firstly an annular groove formed on the trunnion and secondly a cleat carried elastically by the trunnion considered so that its free end is constantly pushed towards the axis of the boring of the bearing considered, at the level occupied, in this bearing, by the corresponding trunnion groove, each cleat being equipped with a gripping member to erase it relative to the bore of the bearing while each pin presents a free end in a truncated cone with the effect of pushing back

  the cleat of the landing in which he is engaged.

  According to yet another characteristic of the invention, there is provided a slide slidably mounted on the slide support between the two first arms, this slide being equipped with means for the removable attachment of a third arm parallel to the first two, one end bent at right angles is shaped like a valve of the same type as those which equip the first two arms, this third arm being mounted sliding longitudinally in a slide on its support slide while removable means are provided to allow locking

  the third arm in the desired position, in its slide

xiliaire.

  For example, these means comprise, on the one hand, a cremation

  lère arranged on one of the longitudinal edges of the third arm and secondly a cleat carried elastically by said slide

  in order to be constantly pushed towards the cremailla-

  the aforementioned one, while a gripping member makes it possible to

place in the opposite direction.

  To facilitate the maneuvering of the third arm, its

  mite opposite the valve is shaped hook.

  So that the ends of the third arm respectively conform

  valve and hook do not prevent its rapid withdrawal from the auxiliary slide of its support slide,

  according to another characteristic of the invention, between its

  hook-shaped tremity and the nearest end of its

  rack, the third arm has a section of in-

  less than the spacing of the retaining lips of the slide of its support slide, the length of this section being at least

  equal to that of said slide.

  In any case the invention will be well understood with the help of

  the description which follows with reference to the attached schematic drawing

3 2460140

  representative, by way of non-limiting example, an embodiment of this spacer; FIG. 1 is a perspective view. FIGS. 2 and 3 are, on an enlarged scale, sectional views along respectively 2-2 and 3-3 of FIG. 1. As shown in particular in FIG. 1, this spacer essentially comprises a support slide 2 consisting of a square section rod on which are mounted two arms, respectively 3 and 4, extending substantially perpendicular to its longitudinal axis. The arm 3 is attached to one end of the slide support 2, the other end is equipped with a grip 5 forming a stop. The arm 4 is slidably mounted on the slide support 2 and, to facilitate its sliding, it is

  integral with a sliding sleeve 6.

  Apart from the fact that one of them is fixed and the other

  the two arms 3 and 4 are identical and therefore the

  following description of the arm 3 is also valid for the arm 4.

  At one of its ends, the arm 3 presents an extension

  7 or gripping maneuvering heel. At its other end it has a cylindrical bearing 8. This end of the arm 3 is intended to receive a spacing member or valve 9 shaped elongated spoon. At its end intended to be linked to the arm 3, the valve 9 has a right angled extension 9a on the

  outer face of which is fixed, perpendicularly, a pin it.

  The length of the trunnion is slightly greater than that of the bearing 8. The diameter of the bore of the bearing 8 corresponds to that of the trunnion II, which can therefore be freely engaged in said bore. At its free end the pin It has a groove 11a and the distance separating the groove 11a from the external face of the bent extension 9a of the valve 9 is equal to that of the bearing 8. As a consequence, as illustrated in FIG. it is engaged in the bore of the bearing 8, its throat lia touches just the end face of the bearing 8 opposite to that against

  which is applied the bent extension 9a of the valve 9.

  Maintaining the pin II in the bearing 8 is provided by a lug 12 held against the end face of the bearing 8 through which the free end provided with a

  throat lia of the trunnion there. This cleat 12 is carried by a blade

  spring 13 fixed by means of a screw 15 against a flat portion 14 formed in the cylindrical face of the bearing 8, the length of the cleat 12

4 2460140

  is slightly greater than the half difference between the diameter

  outside the bearing 8 and that of its bore.

  As a result, the leaf spring 13 tends to

  remain applied against flat 14-and that, therefore, the former

  free end of cleat 12 is normally protruded by

relative to the bearing bore 8.

  It is easily understood that when the pin is engaged in this bore, the free end of the catch 12 is itself engaged in the groove 11a of the pin, which ensures its restraint.

  in the bearing 8, without opposing its rotation about its axis.

  The engagement of the pin II in the bearing 8 is facilitated by the fact that its free end lb is shaped like a truncated cone which has the effect of causing the erasing of the cleat 12

  contact of the slope of the aforesaid truncated cone. To allow the

  quick line of the valve 9 and therefore of its pin It

  out of the bearing 8, the cleat 12 carries a gripping rod 16

  moving it in the direction of the arrow 17 to a position in which it is completely erased by adding to the bore of the bearing 8 and consequently totally releases the throat

Ila of the pin 11.

  It is easy to conceive that the use of this spacer is very convenient because on the one hand by bringing the two arms 3 and 4 closer to each other one can obtain that the corresponding valves 9 are practically in contact with each other. other which facilitates their

  introduction into the anal cavity 10.

  - The spacing of the arms 3 and 4 can be easily achieved by bringing the heel 7 of the arm 4 of the button 5 of the slide support 2. During this operation, the spacer can be held in place by holding the heel 7 of the arm 3 It should be noted that the valves

  9 being free in rotation in their bearing 8 adopt automatic-

a correct position.

  It is also easy to conceive that after being brought into its correct position of separation, the arm 4 is held in this position by wedging its sleeve 6 on the sliding support 2, jamming resulting from the tilting caused by

  pressure exerted by the anal cavity on the corresponding valve 9.

  As shown in particular in Figures 1 and 3, this spacer may optionally be equipped with a third valve 9. This is carried rigidly by a third arm 18 mounted so as to slide longitudinally in a slider 19 itself likely to slide on the slide support 2 between the arms 3 and 4. By sliding the arm 18 longitudinally in this slide 19, that is to say in the direction of the arrow 21, it is conceivable

  it is easy for the valve 9 to be moved away from the

  of the other two which obviously increases the dimensions of the anal cavity. Maneuvering the arm 18 in the direction of the arrow 21 is facilitated by the conformation of its hook free end 22, its retention in the spaced position can be carried out in any appropriate manner. In the example illustrated in the drawings, this retention is carried out by means of a rack 23 formed in one of the edges of the arm 18 and by a catch 24 carried by a spring blade 25 itself fixed by a screw 26 to the slide 19 The spring blade 25 normally holds the catch 24 in such a way that its free end protrudes on the path

  of the rack 23. The teeth of the rack 23 are themselves

  The same orientation is provided so as to allow the cleat 24 to engage the movement of the arm 18 in the direction of the arrow 21, but to oppose its movement in the opposite direction. This displacement in opposite direction can however be achieved by operating the catch 24 in the direction of the arrow 27 by acting on the rod of

  piece 28 which it is equipped for this purpose.

  To facilitate the rapid removal of the valve 9 when necessary, there is provided between the rack 23 and the hook-shaped end 22 of the arm 18 a section 29 of width less than the distance between the lips 19a forming the slide of the slider 19. In addition, the length of this section 29 is slightly greater

  the length of the aforementioned slide of the slider 19, that is,

  that is to say the length of the lips 19a. Accordingly, to quickly remove the arm 18 of this spacer, it is sufficient after pressing the latch 24 by actuating the key 28 in the direction of the arrow 27 to move the arm 18 in the opposite direction to that of the arrow 21 until to bring its section 29 into the vernasalb separating the lips 19a from the slide 19, which has the effect of freeing

  totally the arm 18 of said slide. -

  The easy and rapid removal of the valves 9 with respect to their arm 3 or 4 and their support slide 19 has a double advantage: firstly it allows the fall of the valves of a given size according to the morphology of the patient without that it is necessary to have as many spacers as valves of dimensions

6 2460140

  different. It is enough to have the desired sets of valves.

  It may also be necessary during an intervention

  to temporarily remove a valve, which as indicated before

  cedemment can be achieved very easily and very quickly with the spacer according to the invention. As is obvious and as is apparent from the foregoing, the invention is not limited to the embodiments described above by way of non-limiting examples.

  on the contrary, embraces all the variants of embodiment.

7 2460140

Claims (8)

  1.- anal retractor of the type comprising a support in the form of a slide, two arms mounted on this slide, one fixed at one end of the slide and the other mobile between the two ends of the slide and each of door, at its free end, a spacer or valve, characterized in that each valve is constituted by a spoon-shaped element whose convexity is turned outside and is attached to the arm   corresponding by an articulated articulation providing automatic   its self-positioning under the effect of the pressures generated by the gap.   2. Spreader according to Claim 1, characterized in that   the movable arm between the ends of the sliding support is carried by a sliding sleeve facilitating its movement along the slide support but likely to be wedged by tilting on said slide support under the effect of the pressure generated by   the anal cavity on the corresponding valve.   3. Spreader according to Claim 1 or Claim 2, characterized in that each valve has, at its end intended to be articulated to one of the arms, an extension bent at right angles and carrying, on its external face, a trunnion while each arm has, at its free end, a bearing adapted to receive the aforementioned pin, means being provided to ensure the restraint   the journal in its bearing and allow the withdrawal.   4. Spreader according to claim 3, characterized in that the means for ensuring its retention in a bearing and allow its removal from said bearing comprise, firstly, an annular groove formed on the trunnion and, secondly, a worn cleat   elastically by the trunnion so that its extremity   free mite is constantly pushed towards the axis of the bore of the bearing considered, the occupied level, in this bearing, by Jagorge corresponding trunnion, each cleat being equipped with a gripping member to erase relative at   the bore of the bearing while each pin has one end   Freestyle in truncated cone having fear effect of repressing cleat   of the landing in which he is engaged.   5. Spreader according to any one of the claims   previous, characterized in that there is provided a slide slidably mounted on the slide support between the first two arms, 8 2460140   these sleeves being equipped with means for the removable attachment of a third parallel arm aix two first one end bent at right angles is shapeda valve of the same type as those which equip the first two arms, the third arm being mounted longitudinally sliding in a slide on its support slider while removable means are provided to allow the locking of the third arm in the desired position, in its auxiliary slide.   6. Spreader according to Claim 5, characterized in that the means for locking the third arm in its desired position inside its slideway comprise on the one hand a rack arranged on one of the longitudinal edges of the third lever and on the other hand, a cleat elastically carried by said sleeve so as to be constantly pushed towards the aforementioned rack and while a gripping member allows the   move in the opposite direction.   7. Spreader according to Claim 5 or Claim 6, characterized in that the end of the third arm opposite to the valve is shaped hook.   8. Spreader according to claim 7, characterized in that between its hook-shaped end and the end closest to its rack, the third arm has a portion of width less than the spacing of the retaining lips of the slide of its slide supports the length of this section being   at least equal to that of said slide.