FR2876175A1 - Distribution support for surgical lighting system, has secondary arms whose sections are articulated to central post by secondary hinges that are at same axial height and situated between axial fixing end of post and primary hinge - Google Patents

Abstract

The support has one primary and two secondary arms (14; 16, 18) carrying a lighting dome (6) and two monitoring screens (8), respectively. Sections (14A; 16A, 18A) of the arms (14; 16, 18) are articulated to a central post (12) by primary and secondary hinges (24; 26, 28), respectively. The hinges (26, 28) are at same axial height and axially situated between an axial fixing end (20) of the post and the primary hinge (24). An independent claim is also included for a surgical lighting system including a distribution support.

Description

The present invention relates to a distribution support, particularly for

  an operating light system, of the type comprising

  a central pole defining a central axis and comprising an axial end of attachment, and a free end opposite to the fixing end; at least one first main arm articulated with respect to the central pole about a main axis by means of a first main articulation, - a first secondary arm articulated to the central post about a first secondary axis, offset from the central axis, by means of a first secondary joint.

  It applies in particular to operating lighting systems in operating theaters.

  Operative lighting systems are known comprising a dispensing support which is articulated several arms each of which carries equipment, such as operating lights, a monitoring screen, or a power supply unit in electricity or gas.

  The known dispensing support includes a pole for fixing the lighting system to a ceiling of an operating room. At the current part of this pole are articulated two main arms through two main joints. The free end of this post carries a flange to which are articulated two secondary arms. The two secondary arms are articulated to the post at the same axial level.

  The main arms carry either a lighting device or a power supply, while the secondary arms carry surveillance screens.

  During an operation, the position of the power supplies as well as the lighting devices must often be modified according to lighting or power requirements. However, once in their desired positions, they must remain motionless relative to the patient, to prevent disruption of the surgeon during surgery.

  On the other hand, surveillance screens are only necessary during certain stages of the intervention. It is therefore necessary to be able to change the position of the screens with respect to lighting devices and power supplies.

  However, the secondary arm of the known system often interfere with the main arms carrying lighting devices or power supplies. Thus, a displacement of the monitoring screens requires a displacement of the lighting device or the power supply, which disrupts the operation.

  The invention aims to overcome this disadvantage, and to provide a distribution support that allows greater freedom of movement of the lighting system or a power supply compared to the monitoring screens.

  For this purpose, the subject of the invention is a distribution support of the aforementioned type, characterized in that the first secondary articulation is situated axially, with respect to the central axis, between the axial end of attachment and the first main articulation. .

  According to particular embodiments, the support according to the invention comprises one or more of the following characteristics: said first secondary articulation is the hinge closest to the attachment end; the distribution support comprises a second secondary arm articulated to the central post about a second secondary axis, offset from the central axis and the first secondary axis, by means of a second secondary articulation, and the first and second secondary joints are axially aligned with the central axis; the distribution support comprises third and fourth secondary arms articulated around third and fourth secondary axes by means of third and fourth secondary joints, and the third and fourth articulations are aligned axially with respect to one another and offset axially by relation to the first secondary joint; the secondary axes are regularly distributed around the central axis; - The distribution support comprises a second main arm articulated to the central post about a second main axis by means of a second main joint, axially offset from the first main joint; the or each secondary articulation comprises abutment means limiting the admitted pivoting of the associated secondary arm around an angular range less than 360; the or each main axis coincides with the central axis, and the or each main articulation allows a rotation of the associated main arm around an angular range greater than or equal to 360; and the dispensing support comprises at least one flexible supply line intended to supply equipment located at the end of a secondary arm, and the hinge line extending inside the respective hinge around an elbow of 90.

  The invention furthermore relates to an operating lighting system comprising a distribution support and a lighting device mounted at the end of an arm of the support, characterized in that the distribution support is a support such that defined above.

  According to particular embodiments of the system, it comprises the following characteristics: the lighting device is mounted on a main arm, in particular on the first main arm; and the lighting system comprises a distribution block provided with supply connections, and the distribution block is mounted on a main arm, in particular on the first main arm.

  The invention will be better understood in the light of the description which follows, given solely by way of example and with reference to the appended drawings, in which: FIGS. 1 to 3 are perspective views of three modes of embodiment of a lighting system according to the invention; - Figure 4 is a longitudinal sectional view of a portion of the support of Figure 1; and - Figure 5 is the enlarged detail V of Figure 4.

  In Figure 1 is shown in perspective an operating lighting system according to the invention, designated by the general reference 2.

  The lighting system 2 comprises a distribution support 4 and a plurality of equipment, such as a lighting dome 6 and two surveillance screens 8.

  The lighting system 2 is intended to be attached to an unrepresented wall or ceiling of an operating room, such as a surgical operating room.

  The distribution support 4 comprises, on the one hand, a central post 12, and on the other hand a main arm 14 and two secondary arms 16 and 18. The arms 14, 16, 18 carry the teachings 6, 8 at their ends. free.

  The central post 12 has a substantially cylindrical shape extending around a central axis X-X vertical. In what follows, the expressions axially and radially will be used with respect to this axis XX.

  The post 12 comprises an upper axial end 20 of attachment which is intended to be fixed to the wall or ceiling. The post 12 further comprises a free end 22 which is opposite to the fixing end 20.

  The main arm 14 consists of three sections of main arms 14A, 14B, 14C mutually articulated to each other. The section 14A is articulated to the central post 12 around a main axis, which coincides with the axis XX, by means of a first main articulation 24. This main articulation 24 allows free rotation of the section 14A about the axis XX without stop, that is to say over a range of more than 360.

  For this purpose, the support comprises sliding electrical contacts 25 which consist of peripheral tracks disposed on the pole 12 and corresponding tracks disposed on the arm sections 14A (see Figures 4 and 5).

  The two secondary arms 16, 18 are substantially identical and each consist of three sections of secondary arms 16A, 16B, 16C, and 18A, 18B, 18C mutually articulated to each other.

  The section 16A is articulated to the central post 12 around a secondary axis Y-Y, which extends parallel to the axis X-X and which is radially offset relative thereto. Similarly, the section 18A is articulated to the central post 12 about a secondary axis Z-Z, which also extends parallel to the X-X axis and which is offset radially from the X-X axis and the Y-axis. For this purpose, the section 16A comprises a secondary articulation 26 and the section 18A comprises a secondary articulation 28.

  As seen in Figure 4, the secondary joints 26 and 28 are offset from the main joint 24 and are located axially between the main joint 24 and the axial end 20. The secondary joints 26 and 28 are the joints located closest to the fixing end 20.

  The two secondary joints 26 and 28 are at the same axial height, so that the sections 16A and 18A are axially aligned.

  Each of the joints 26 and 28 allows a pivoting of the corresponding section 16A, 18A around an angular range less than 360.

  The secondary articulation axes Y-Y and Z-Z are regularly distributed around the central axis X-X. In this case, the X-X, Y-Y and Z-Z axes extend in a single plane.

  It should be noted that the sections 14A, 16A, 18A which are articulated to the pole 12, extend radially with respect to the X-X axis. In addition, the sections 16A, 18A are radially longer than the section 14A. In addition, the joints 24, 26, 28 are joints that allow only an exclusive rotation about their only axis X-X, Y-Y, Z-Z respectively.

  The central post 12 comprises a fastening flange (see Figure 5) which is provided with two end pieces 32, 34 on which are inserted sleeves 36, 38 attached to the respective sections 16A, 18A, to form the joints 26, 28. The ferrules 32, 34 each comprise a central cylindrical opening 40, 42 having an axis coinciding with the respective axis YY, ZZ of the articulation.

  The ends 32, 34, and the sleeves 36, 38 each comprise, in their lower part, openings forming a radial passage 44, 46 opening into the current portion of the sections 16A, 18A.

  The distribution support 4 further comprises flexible power supply or gas supply cables 50, 52, which extend in the central openings 40, 42 in an axial direction with respect to the axis YY, ZZ of the respective hinge 26, 28. Each cable 50, 52 forms a single bent part over a range of substantially 90 which passes through the radial passages 44, 46. Thus, the cable 50, 52 is only slightly bent, which increases the service life of the carrier. distribution.

  Due to the arrangement of the secondary joints 26, 28 closer to the end 20 than the main joint 24, the lighting cup 6 can be moved freely without hitting the secondary arms 16 or 18.

  In addition, thanks to the arrangement of the two secondary joints 26, 28 at the same axial height, the distribution support 12 according to the invention makes it possible to maintain a large number of equipment for a given axial dimension of the support.

  In Figure 2 is shown a second embodiment of the lighting system according to the invention.

  In what follows, only the differences with respect to the first embodiment will be described. Similar elements bear the same references.

  The distribution support 4 comprises an additional main arm 60, which carries a lighting cupola 62. The arm 60 is composed of three sections 60A, 60B, 60C. The section 60A is articulated to the central post 12 around the central axis X-X, with an additional main articulation 64, which is identical to the main articulation 24.

  The hinge 64 is axially offset from the hinge 24 downwards and constitutes the lower end 22 of the pole 12.

  This embodiment makes it possible to better illuminate a field of operation thanks to the two lighting domes 6 and 62.

  The domes 6, 62 can also be moved freely without interfering with the screens 8.

  In Figure 3 is shown a third embodiment of the lighting system according to the invention.

  In what follows only the differences with respect to the first embodiment will be described, analogous elements bearing the same references.

  As a difference with respect to the embodiment of FIG. 1, the secondary arm 18 carries the two monitoring screens 8 and the first secondary arm 16 carries the lighting dome 6.

  The main arm 14 consists of a single main section 14A at the free end of which is fixed a distribution block 70, which comprises electrical connections or feed fluid connections, such as oxygen.

  This support makes it possible to maintain the block 70 in a predetermined position while the dome 6 and the screens. 25 8 can be moved freely.

  The support according to the invention allows a great flexibility of arrangement of the equipment 6, 8, 70 on the arms.

  According to a variant not shown, the support comprises, in addition to secondary arms 16, 18, third and fourth secondary arms, which are articulated around third and fourth secondary axes by means of third and fourth secondary joints. These third and fourth joints are axially aligned with each other and offset axially relative to the secondary joints 26 and 28.

  Alternatively, the equipment to be arranged on the arms 5 may further include operating tool holders, such as scalpel holders.

Claims (12)

  A dispensing support (4), in particular for an operating lighting system (2), of the type comprising: - a central post (12) defining a central axis (XX) and comprising an axial fixing end (20), and a free end (22) opposite the fastening end (20), - at least a first main arm (14; 14; 60) articulated with respect to the central post (12) about a main axis (XX) with a a first main joint (24; 24; 64); a first secondary arm (16; 18) articulated with respect to the central post (12) around a first secondary axis (YY, ZZ) offset from the central axis (XX), by means of a first secondary articulation (26, 28), characterized in that the first secondary articulation (26, 28) is situated axially, with respect to the central axis (XX), between the axial end of fixation (20) and the first main hinge (24; 24, 64).   2. Dispensing support according to claim 1, characterized in that said first secondary joint (26, 28) is the hinge closest to the fixing end (20).   3. Dispensing support according to claim 1 or 2, characterized in that it comprises a second secondary arm (18, 16) articulated to the central pole (12) around a second secondary axis (Z-Z, YY), offset from the central axis (XX) and the first secondary axis (YY, ZZ) by means of a second secondary articulation (28, 26), and in that the first (26, 28) and the second (28, 26) secondary joints are axially aligned with respect to the central axis (XX).   4. Dispensing support according to any one of the preceding claims, characterized in that it comprises third and fourth secondary arms articulated around third and fourth secondary axes by means of third and fourth secondary joints, and in that the third and fourth fourth joints are axially aligned with each other and offset axially with respect to the first secondary joint.   5. Dispensing support according to claim 3 or 4, characterized in that the secondary axes (Y-Y, Z-Z) are regularly distributed around the central axis (X-X).   6. Dispensing support according to any one of claims 1 to 5, characterized in that it comprises a second main arm (60, 14) articulated to the central post (12) around a second main axis (XX) at a a second main hinge (64, 24) axially offset from the first main hinge (24, 64).   7. Dispensing support according to any one of the preceding claims, characterized in that the or each secondary articulation (26, 28) comprises stop means limiting the allowed pivoting of the associated secondary arm (16, 18) around a angular range less than 360.   8. Dispensing support according to any one of the preceding claims, characterized in that the or each main axis (XX) coincides with the central axis (XX), and in that the or each main articulation (24; 24) allows rotation of the associated main arm about an angular range greater than or equal to 360.   9. Distribution support according to any one of the preceding claims, characterized in that it comprises at least one flexible supply line (50, 52) for supplying equipment (6, 8) disposed at the end of a secondary arm (16, 18), and in that the hinge line (50, 52) extends inside the respective hinge (24, 26) around a bend of 90.   10. Operating lighting system comprising a distribution support and a lighting device (6) mounted at the end of an arm of the support, characterized in that the distribution support is a support (4) according to the any of the preceding claims.   11. Operating lighting system according to claim 10, characterized in that the lighting device (6) is mounted on a main arm (14, 14, 60), in particular on the first main arm.   Operating light system according to claim 10 or 11, characterized in that the lighting system comprises a distribution block (70) with supply connections, and that the distribution block (70) is mounted on a main arm (14, 14, 60), in particular on the first main arm.