• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a neurosurgical assistance robot comprising a mobile box (1) whose frame is provided with a rigid support arm (6) for connection with a headrest (19) supporting the head of a patient lying on a table of operation (18). According to the invention, said support arm (6) is movable relative to the chassis between a retracted position in the volume of the box (1) and a plurality of deployed positions, locking means of said arm (6) in any position being provided .
    公开号:FR3036279A1
    申请号:FR1501055
    申请日:2015-05-21
    公开日:2016-11-25
    发明作者:Bertin Nahum；Fernand Badano；Eric Roussel；Lucien Blondel
    申请人:Medtech SA；
    IPC主号:
    专利说明:

    [0001] The present invention is in the medical field and more particularly in the field of neurosurgery. It relates to a neurosurgical assistance robot comprising a rigid support arm for positioning the robot relative to the head of a patient and to maintain the patient's head reasonably fixed during a neurosurgical operation. At least three medical devices are known that make it possible to adapt the position of a neurosurgical assistance robot according to the anatomy and the position of the patient, and thus to ensure that the patient's head is maintained during the course of the treatment. neurosurgical operation. A first known device is a neurosurgical assistance robot which has the particularity of being immobilized in the operating theater, in particular via a pillar sealed in the ground. This device has several drawbacks mainly related to its immobilization on the ground: it represents a large footprint in an operating room, it modifies the structure of the latter and leads de facto specialization in neurosurgery. In addition, its rigid appearance (ground fixation) reduces its ability to adapt to patient positioning. A second medical device of the same order uses the rails of an operating table as a mounting bracket on the one hand for a headrest supporting the patient's head and on the other hand for the neurosurgical assistance robot itself. Such a device does not include a direct rigid connection between the robot and the patient's head. In addition, several separate mechanical joints allow the attachment of the headrest and the robot to the rails of the operating table, which involves multiple adjustments to adapt the attachment of the surgical device to the patient's position for the purpose of the operation.
    [0002] 3036279 2 Each joint also represents a potential loss of rigidity of maintaining the patient's head relative to the robot. This second device also has the disadvantage of leading to a maintenance of the headrest relative to the robot which ultimately depends on the rigidity of the operating table. A third medical device, developed by the applicant, is a neurosurgical assistance robot that includes a fixed rigid support arm. During an operation, the fixed support arm 10 is provided to rigidly hold the patient's head via a standard forearm. This device therefore comprises a direct rigid connection between the robot and the patient's head, but it has the disadvantage of being difficult to adjust to the anatomy and especially to the positioning of the patient attached to the operating table. In addition, the fact that the support arm is fixed and non-removable makes it more bulky, less easy to move in the tight context of an operating room, and is finally less convenient to store out of use. The present invention overcomes the aforementioned shortcomings and problems, and aims at providing an ergonomic neurosurgical assist robot, i.e., in this case, easily positionable with respect to the position and anatomy of the patient while providing, during a neurosurgical operation, a sufficiently rigid and reliable holding of the patient's head. Among the advantages provided, the neurosurgical assistance robot of the invention moreover offers an amplitude, in the positioning adjustments, sufficient to allow it to adapt to very varied configurations of setting up the robot. To these effects, the neurosurgical assisting robot of the present invention, conventionally comprising a movable box whose frame is provided with a rigid support arm for connection with a headrest supporting the head of a patient lying on a table 30. The operation is provided such that said support arm is movable relative to the frame between a retracted position in the box volume and a plurality of deployed positions, locking means of said arm in any position being provided. The possibilities of retraction and adjustment contribute to the flexibility of use of the robot of the invention, both in a perspective of space, and therefore space management in an operating room, as far as concerns the operative precision by increasing the positional adaptability of the robot relative to the patient. According to an advantageous configuration, the chassis has a rigid reference structure comprising a plate in which are fixed means for managing the mobility of the support arm and on which is fixed a second robotic arm carrying tools. One of the important aspects of a surgical robot of the type of the invention lies in the stability required by the accuracy of the surgical procedure, a stability that should be rhymed with variability / dimensional modularity. The objective of optimal adaptation to the position of the patient's head should not be satisfied to the detriment of the mechanical rigidity that guarantees this stability. A rigid reference structure has therefore been put in place, provided with an element (the plate) to which the surgical robotic arm is directly connected and the support arm of the head on the other hand, their distribution by relative to this plate further reinforcing the mechanical rigidity and stability of the assembly. In practice, in order to improve the evaluation of the relative positioning of the robot and its chassis with respect to the operating table, the support arm may comprise means for locating its position, allowing an operator in the preoperative phase to preposition the upper robotic arm relative to the patient's head. More specifically, according to one possibility, the support arm may comprise registration marks which make it possible to adjust the support arm with a high degree of accuracy, in combination with suitable locking means. According to one possible configuration, which satisfies the rigidity / stability requirement previously stated, said locking means are connected to the frame and may comprise at least one indexing finger biased by spring means towards at least one recess practiced. in the rigid support arm. In this case, preferably, the indexer finger may comprise a conical free end and cooperate with a succession of orifices 15 made in the direction of displacement in a surface of the support arm facing said finger. This design allows a reliable and robust immobilization of the support arm in any position, even when significant operating stresses are exerted on the patient's head.
    [0003] According to one embodiment, the locking means can be activated / deactivated by a movable control handle between at least two positions respectively corresponding to the activation and deactivation of the locking means. Preferably, the support arm of the neurosurgical assistance robot 25 of the invention is movable in a single degree of freedom in translation relative to the box. In this case, more preferably, the translation is of horizontal axis. In the perspective of the implementation of a degree of freedom for a position adjustment ensuring, for each stable position of the support arm of the headrest, sufficient rigidity, the support arm according to the invention comprises at least one sliding rail in a slideway of the frame and cooperating with at least one integral guide shoe fixed to the frame.
    [0004] In practice, the guide shoe (s) are preferably arranged at the outlet of the slide (s). Still according to a preferred embodiment, the support arm actually comprises two lateral rails sliding in two facing rails fixed to the frame. This functional doubling plays a role in the stabilization of the support arm relative to the chassis, since the stresses that apply to the arm during its movements are supported by two rails and therefore halved for each rail.
    [0005] Finally, according to the invention, the free end of the support arm can be connected to the headrest via a radiolucent part rigidly fixed to the free end of said support arm and having a connecting interface to the headrest that manages at least two degrees. of freedom. In general, the direct attachment system between the patient's head and the robot is made with a reduced number of mechanical parts, simple to manufacture and assemble, which advantageously minimizes the risk of loss of mechanical stability / rigidity as much as possible. production costs. Another advantage of this relative simplicity can be seen in a mechanical robustness that significantly reduces the need for maintenance between uses. The linkage system between the patient's head and the robot of the invention allows the complete robotic device to present, due to the retractability of the support arm, reasonable dimensions on the scale of an operating room. 'Congestion corresponding to the retracted state making it easier to store.
    [0006] Other features and advantages of the present invention will become apparent in the detailed description of an exemplary embodiment, not limiting of the invention, illustrated in the figures in the appendix: FIG. 1 is a perspective view a neurosurgical assistance robot of the invention whose support arm is retracted; FIG. 2 shows said robot, apparent chassis, with the support arm partially deployed; - Figure 3 shows the frame of this robot, with the support arm fully retracted; - Figure 4 is a representation of said frame with the support arm fully deployed; Figure 5 shows the arrangement of the support arm and the slide in which it slides; - Figure 6 shows, in partial perspective view, the locking means provided for cooperating with the support arm, in the unactivated position; FIG. 7 shows said locking means in the activated position, rigidly locking the support arm; FIG. 8 illustrates the operation of the neurosurgical assistance robot of the invention for intervening on the cranial box of a patient lying on an operating table; and - Figure 9 shows the interaction between the robot and the patient in side view. With reference to FIG. 1, the neurosurgical assistance robot of the invention comprises a mobile box (1) on wheels (2) surmounted by a robotic arm (3) whose free end is provided with at least one a tool. It also has an assistance screen (4) allowing the operator, in this case the surgeon, to view the current operation and more specifically the work of the tool equipping the robotic arm 30 (3). The mobile box (1) dresses a frame (5) visible in Figure 2, provided with a rigid support arm (6) whose function will be explained in more detail below. Said support arm (6) is movable relative to the frame (5) between a retracted position in the volume of the box (1), or the frame (5), and 3036279 7 a plurality of deployed positions. It has an end provided with a fixing plate (7) to equipment including maintaining the patient's head. In the preoperative phase, an operator adapts the position of the neurosurgical assistance robot 5 first roughly by moving the robot on its wheels (2) and more precisely by deploying the support arm (6) according to the positioning of the patient, so by relative to the location of the operating table (18). Once the optimal position of the support arm 10 (6) is established, the invention provides locking means (12) for maintaining said arm (6) rigidly in virtually any position. Thus, the patient's head is held rigidly and above all reliable during the operation. The maintenance of this rigidity and the accuracy of the stable positioning of the box (1) / chassis (5) carrying the robotic arm (3) relative to the patient is obviously very important for applications to brain surgery. Figure 1 shows the neurosurgical assist robot with the support arm (6) in the retracted position within the housing (1). Advantageously, in this configuration, the mobile box (1) is easily manipulated and transportable in a congested environment such as an operating room. FIG. 2 illustrates in particular the way in which the support arm (6) and the second robotic arm (3) are attached to the neurosurgical assistance robot, in a manner which guarantees the stability necessary for a surgical use related to the treatment of the patient. brain. For this purpose, the frame (5) comprises a rigid reference structure comprising in particular a plate (8) more particularly visible in FIGS. 3 and 4, under which are fixed means (9) for managing the mobility of the support arm (6). ) (in this case in translation) and on which is fixed the second robotic arm (3). In practice, the support arm (6) is movable in a single degree of freedom in translation relative to the frame (5). More particularly, the translation of the support arm (6) takes place along a horizontal axis. For this purpose, the frame (5) comprises a guide block (9) shown in FIG. 5, provided with two sliding rails in which two lateral rails 5 (10) slide. These are mounted on both sides of the vertical side of the support arm (6) so as to correspond to the locations of the slides in the block (9). This arrangement makes it possible to obtain a tightly guided and therefore very stable horizontal translation of said support arm (6) between two retracted and extended end positions which appear respectively in FIGS. 3 and 4. The guide block (9) is fixed under the plate (8) secured to the frame (5) for example by bolting at corner brackets (11). It comprises two guide pads (14) disposed at the outlet of the block (9), which facilitate sliding during sliding of the support arm (6). The guide pads (14) cooperate in fact with the rails (10) mounted on the support arm (6) and optimize the accuracy of the translation of the support arm (6).
    [0007] Advantageously, the guide pads (14) also contribute to a reliable holding of the position of the support arm (6) in the deployed position, even when heavy stresses are exerted on the patient's head, which stresses are reflected in the arm (6) as will be seen in the sequel. To further ensure the stability and rigidity of the connection, in addition to the actual guiding, the shape of the inner housing block (9) corresponds to the outer shape of the arm (6), rails (10) included, which improves again the positioning of one in the other at each moment during the displacement and for each deployed position. As mentioned above, the support arm (6) comprises locating means (not shown) which consist for example of markings for locating the position of said support arm (6). This characteristic allows the operator, particularly in the preoperative phase, to preposition with sufficient precision the neurosurgical assistance robot with respect to the patient's head.
    [0008] FIGS. 6 and 7 more particularly illustrate the operation of the locking means (12) fixed to the frame (5), said means (12) being placed at the outlet of the slide (9) so as to allow easy access to the handle control (13).
    [0009] These locking means (12) comprise at least one indexing finger (15) whose conical end, intended for centering purposes in orifices (16) distributed at regular intervals in the lower face of the support arm (6), is shown in Figure 6. This indexing finger (15) is biased by the spring means 15 towards these orifices or recesses (16) formed in the support arm (6). The spring means may for example be formed by a conventional compression spring. More specifically, the conical free end of the finger (15), when it cooperates with the orifices (16) arranged in the direction of movement, allows the support arm (6) to take a large number of discrete stable positions, with a dimensional accuracy that depends on the diameter of the orifices. In the application of the invention, the finger (15) fits with minimal clearance in the orifices (16) so as to prevent any uncontrolled, even slight, displacement of the support arm (6). The locking means (12) are activated / deactivated by a control lever (13) movable between at least two positions, respectively an activation position, which appears in FIG. 7, and a deactivation position shown for example in FIGS. 5 and 6. The use of a movable control lever (13) such as that of the invention allows a quick and efficient locking of the translation of the support arm (6). The conical end of the finger (15), when centered in an orifice (16), slightly modifies the dimensional adjustment initially selected manually by the user in his pre-setting phase. As illustrated in FIG. 6, when the control handle (13) is in the deactivated position, the indexing finger (15) is retracted into its housing against the spring means, and the operator can then freely adjust the position of the support arm (6) by translation. Once the optimum position has been established, the operator moves the movable control lever (13) into the activated position, unlocking the spring means which urges and holds the conical end of the indexing finger (15) abutted in the orifice ( 16) facing it, or in any event in the hole (16) closest to centering, the position and the deployment of the arm (6) then being locked.
    [0010] Such locking means (12) allow rapid, reliable and robust immobilization of the support arm (6) in any position by rigidly locking the finger (15) in a hole (16) of corresponding diameter. The position of the patient's head can therefore be maintained reliably, i.e. with a sufficient degree of immobility of the supporting structure, even when significant stresses are exerted on the head of the patient. patient. A possible method of fixing the patient's head is also illustrated in FIGS. 8 and 9: the free end of the support arm (6) is in this case connected to a standard system (19) for fastening the head patient lying on the operating table (18). In the configuration shown, this attachment is made via a radiolucent part (17) attached to the plate (7), which takes the form of a rigid frame.
    [0011] Radiotransparency of said part (17) makes it possible, in the intraoperative phase, to produce and obtain images using imagers using X-rays by eliminating all radio-nuisances in the environment close to the patient's head. .
    [0012] The radiotransparent frame (17) must absolutely be fixed rigidly to the free end of the support arm (6), since it is on it that the standard system (19) for fastening the patient's head is secured. via a link interface managing at least two degrees of freedom. Relative mobility, when it is necessary, is therefore supported at this point in the mechanical chain. The degrees of freedom of the interface piece, for example attached to a standard headrest (19) as shown in FIGS. 8 and 9, make it possible to adapt even more precisely the positioning of the neurosurgical assistance robot with respect to at the head of the patient during operation. The mechanical management of the degrees of freedom is provided closer to the patient's head. Thus, when severe stresses are exerted on the patient's head, which occurs during operations involving preliminary work phases on the bony parts of the skull, the torque or stresses exerted on each link managing a degree of freedom is or are reduced to the maximum. In the example shown, the connection interface between the radiolucent frame (17) and the standard faceplate (19) has five degrees of freedom. There are alternatives to using a standard headrest (19) to hold the patient's head, which are perfectly usable in the context of the present invention, for example devices based on a stereotactic frame with two degrees of freedom . This possibility is not represented: in general, the configuration described by means of the figures is not exhaustive of the invention, which encompasses the variants of shape and structure, in particular but not exclusively with regard to the adjustment dimensional robot of the invention in the deployed position.
    权利要求:
    Claims (13)
    [0001]
    REVENDICATIONS1. Neurosurgical assistance robot comprising a mobile box (1) whose frame (5) is provided with a rigid support arm (6) for connection with a headrest (19) supporting the head of a patient lying on a table operation (18), characterized in that said support arm (6) is movable relative to the frame (5) between a retracted position in the volume of the box (1) and a plurality of deployed positions, locking means (12) said arm (6) in any position being provided.
    [0002]
    2. neurosurgical assistance robot according to claim 1, characterized in that the frame (5) comprises a rigid reference structure comprising a plate (8) in which are fixed means (9) for managing the mobility of the support arm (6) and on which is fixed a second robotic arm (3) carrying tools.
    [0003]
    3. neurosurgical assistance robot according to one of the preceding claims, characterized in that the support arm (6) comprises locating means of its position.
    [0004]
    4. Neurosurgical assistance robot according to the preceding claim, characterized in that the support arm (6) has markings of registration.
    [0005]
    5. neurosurgical assistance robot according to any one of the preceding claims, characterized in that the locking means (12) are connected to the frame (5) and comprise at least one indexing finger (15) biased by spring means direction of at least one recess (16) formed in the rigid support arm (6).
    [0006]
    6. Neurosurgical assistance robot according to the preceding claim, characterized in that the indexing finger (15) has a conical free end and cooperates with a succession of orifices (16) made in the direction of movement in a surface of the support arm. (6) facing said finger (15). 3036279 13
    [0007]
    7. neurosurgical assistance robot according to any one of the preceding claims, characterized in that the locking means (12) are activated / deactivated by a movable control lever (13) between at least two positions respectively corresponding to the activating and deactivating the locking means (12).
    [0008]
    8. neurosurgical assistance robot according to the preceding claim, characterized in that the support arm (6) is movable in a single degree of freedom in translation relative to the housing (1).
    [0009]
    9. Neurosurgical assistance robot according to the preceding claim, characterized in that the translation is of horizontal axis. 15
    [0010]
    Neurosurgical assistance robot according to one of the preceding claims, characterized in that the support arm (6) comprises at least one sliding rail (10) in a slideway of the frame (5) and cooperating with at least one shoe guide (14) secured to the frame (5). 20
    [0011]
    11. neurosurgical assistance robot according to the preceding claim, characterized in that the or the guide pads (14) are arranged at the output of the slide or slides.
    [0012]
    12. neurosurgical assistance bundle according to one of claims 10 and 11, characterized in that the support arm (6) comprises two side rails (10) sliding in two facing rails fixed to the frame (5).
    [0013]
    13. Neurosurgical assistance robot according to any one of the preceding claims, characterized in that the free end of the arm (6) is connected to the headrest (19) via a radiolucent part (17) fixed rigidly to the free end of said support arm (6) and having a connection interface to the headrest (19) managing at least two degrees of freedom.
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    同族专利:
    公开号 | 公开日
    JP2018516728A|2018-06-28|
    CN108076623A|2018-05-25|
    FR3036279B1|2017-06-23|
    CA2986307A1|2016-11-24|
    CA2986307C|2021-10-26|
    US20180132965A1|2018-05-17|
    AU2016263539B2|2020-10-22|
    JP6751136B2|2020-09-02|
    AU2016263539A1|2018-01-18|
    EP3297565A1|2018-03-28|
    WO2016185140A1|2016-11-24|
    US10881483B2|2021-01-05|
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    法律状态:
    2016-05-26| PLFP| Fee payment|Year of fee payment: 2 |
    2016-11-25| PLSC| Publication of the preliminary search report|Effective date: 20161125 |
    2017-04-13| PLFP| Fee payment|Year of fee payment: 3 |
    2018-04-11| PLFP| Fee payment|Year of fee payment: 4 |
    2019-04-10| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-29| PLFP| Fee payment|Year of fee payment: 6 |
    2021-04-08| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1501055A|FR3036279B1|2015-05-21|2015-05-21|NEUROSURGICAL ASSISTANCE ROBOT|FR1501055A| FR3036279B1|2015-05-21|2015-05-21|NEUROSURGICAL ASSISTANCE ROBOT|
    EP16733137.0A| EP3297565A1|2015-05-21|2016-05-19|Neurosurgical assistance robot|
    CN201680034005.3A| CN108076623A|2015-05-21|2016-05-19|Neurosurgery auxiliary robot|
    US15/576,170| US10881483B2|2015-05-21|2016-05-19|Neurosurgical assistance robot|
    JP2018512498A| JP6751136B2|2015-05-21|2016-05-19|Support robot for neurosurgery|
    AU2016263539A| AU2016263539B2|2015-05-21|2016-05-19|Neurosurgical assistance robot|
    CA2986307A| CA2986307C|2015-05-21|2016-05-19|Neurosurgical assistance robot|
    PCT/FR2016/051178| WO2016185140A1|2015-05-21|2016-05-19|Neurosurgical assistance robot|
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