Abstract: The apparatus for immobilizing and treating a subject includes a suitable apparatus for performing mechanical CPR secured to an immobilization casing. The airtight flexible casing is secured to the apparatus for performing CPR, the casing having variable rigidity which varies as a function of the amount of air within the casing. Two or more slots through the casing permit passage of one or more elements of the CPR apparatus to pass through the casing. One or more incompressible windows may be included in the casing to optimize the performance of mechanical CPR by permitting one or more elements of the subject's skeleton to contact the CPR apparatus. A device for evacuating the air from within the flexible casing to control the rigidity of the casing is included within the CPR apparatus.

Abstract: A positioning device is described for supporting an infant with myelomeningocele during surgery, transport and pre- and post-operative procedures. The device allows the patient to be expeditiously re-positioned from prone to supine and lateral positions and vice versa before, during and after surgery. The device allows access to the myelomeningocele while the patient is secured in the device.

Abstract: A robotic first responder system provides injured patients with first response medical care and extracts the injured patient from a dangerous or remote area. After assessing of the level of consciousness of an injured patient, the robotic unit utilizes an inflatable immobilization device for safe robotic rescue of injured patients. The robotic unit lifts and transfers an injured patient to an extraction vehicle, a secure, bullet-proof wheeled system that can be pulled by the robot to safe location. The extraction vehicle continues serving as the evacuation stretcher to a medical station. The robotic unit utilizes zero moment point control to maintain stability while lifting the patient. A robot first responder tows the extraction vehicle or the extraction vehicle self-navigates incorporating with power drive and autonomous navigation systems.

Abstract: A restraint system includes a first handle and a second handle. A sling element is connected at a first edge to the first handle and at a second edge to the second handle and includes a webbed material.

Abstract: The invention relates to a head support (10, 100) for operating tables, comprising a rotatably mounted first holding element (12) for surrounding a first side of a patient's head receivable in a receiving area (32) and an also rotatably mounted second holding element (14) for surrounding a second side of the head. The two holding elements (12, 14) are coupled to each other in a coupling area by means of a coupling element (16) such that when one of the holding elements (12, 14) is rotated, the coupling element (16) also rotates the other holding element (12, 14). Between the coupling area and the receiving area (32) a stationarily arranged supporting element (33) for supporting the head receivable in the receiving area (32) is provided.

Abstract: An immobilization device including an anterior component including a two-dimensional shaped section contoured to a shape of the human chest and an anterior outwardly bowed area relative to the two-dimensional shaped anterior section generally corresponding to the sternum of the wearer. The device also includes a posterior component including a two-dimensional shaped section contoured to a shape of the human back and a posterior outwardly bowed area relative to the two-dimensional shaped section corresponding to the spinal column of the wearer, with elongate cushion elements connected to and extending within a width of the posterior outwardly bowed area. A strapping system connects both the anterior and posterior components to one another.

Abstract: The present invention is a device for the restraint of patients on a treatment table. More specifically, the invention is designed to provide lateral side pressure on a patient in the abdomen, thorax, and hip areas during a radiation treatment. The main components of the device are paddle(s) and at least one crossbar assembly. The paddles are coupled to a crossbar assembly, which is positioned on a treatment table under the body cushion in which the patient is positioned. The paddles can be moved laterally along the crossbar such that they put lateral pressure on the cushion and the patient.

Abstract: A subject support accessory (126, 200) includes a securing mechanism (300) configured to secure to a tabletop of the subject support anywhere along a long axis of the tabletop by lowering the securing mechanism onto the tabletop. A method of securing a subject support accessory (126, 200) to a subject support (116) of an imaging system (100) includes receiving, via slots (316, 318) in pivoting arms (304, 310) of the accessory, the tabletop, wherein the accessory is vertically lowered onto the subject support and the slots physically engage the tabletop, and releasably locking the arms, in response to receiving a force, so that the arms no longer pivot, thereby securing the subject support accessory to the subject support.

Abstract: Care units and related methods providing a comfortable environment for a patient are disclosed. A care unit can include a base member and a plurality of petal members. Each petal member can extend from a first end, engaged with the base member, to a second end, spaced from the base member. Inward-facing surfaces of at least two petal members and the base member can collectively define a cavity for receiving at least a portion of the patient. The care unit can further include one or both of a therapy component, configured to provide a treatment to the patient, or a sensor component, configured to monitor a condition of the patient. The therapy component can be coupled to, or integrated with, one or both of the base member or a petal member and can include an optical light source, a thermal energy source, an oxygen or air source, a sound wave source, a sound wave-cancelling source, or a pulsating source, for example.

Abstract: A patient positioning device provided to position, protect and secure a patient on a support surface for transfer to another support surface or for preparation for surgery. The positioning device includes a sheet with a first and second flexible substrate coupled to the sheet's top surface. The first and second flexible substrates may be padded. These substrates are capable of wrapping around an adjacent arm of the patient creating a wrapped engagement. This wrapped engagement may pad, protect, secure and elevate the arms from injury caused by pressure imparted thereon during surgery or transport. This positioning device may be lifted or slid from one support surface to another. Optionally, a third and fourth flexible substrate capable of wrapping around an adjacent arm of the patient creating a second wrapped engagement may be used for additional securing. Optionally, an inflatable support may be used with the device to aid when sliding or translating the device 10 with the patient thereon.

Abstract: A blank for a head restraint is disclosed. The blank includes a frame and a sheet extending across the frame wherein a main aperture and a pair of auxiliary apertures are provided in the sheet. The arrangement of the apertures is such that when the sheet is deformed upon placement on a patient's head, the main aperture is such to leave a patient's face substantially free of the sheet and the auxiliary apertures are such to cause a retaining strut to be formed by portions of the sheet between the main aperture and the auxiliary apertures.

Abstract: A modular articulating splint includes flat slats; a covering that surrounds the slats and holds them in a fixed position spaced apart from each other so that adjacent slats can fold over atop one another to form a stacked deck of slats for storage; and a fabric hook-and-loop fastener for each slat so that the hook portion is affixed to the covering within the width of each slat on a first side and the loop portion is affixed to the covering within the width of each slat on the opposite side.

Abstract: A patient transfer device is utilized to transport infant patients between locations within a hospital environment. The patient transfer device includes a center, support section and a pair of side sections that can be moved into contact with each other to surround the infant patient. The first and second side sections each include a handle that can be brought into close proximity to each other and can be grasped by a single hand of a clinician. The patient transfer device includes a stiffening device that is positioned within the center section to provide support for the infant patient during transport. A hold down device is included on one or both of the first and second side sections to securely hold tubes and wires connected to the infant patient during transport of the infant patient.

Abstract: In order to improve a support (2) for supporting a patient, particularly for surgical procedures in the shoulder region, said support comprising a substantially flat body part (4) and a bowl-shaped head part, said body part (4) comprising a back part (6) and a thorax part (8) tapered in relation thereto, the head part (10) being disposed on said thorax part by means of a transitional region, with the thorax part (8) and the transitional region sloping upwards such that the head part (10) is higher than the back part (6), and with said head part being adapted to the human profile and comprising a removable, inflatable support for adapting the position of the patient to the current positional or treatment requirements, the invention proposes that the transitional region be designed as neck part (12) and also be adapted to the human profile, comprising a removable, inflatable support for adapting the position of the patient to the current positional or treatment requirements.

Abstract: A padded head support for use during surgery includes a head wrap and a chin wrap. The head wrap includes a headrest pad adapted to cover the back of a patient's head and a forehead band having a first portion and a second portion extending from the headrest pad to form a first closed loop around a patient's head. The chin wrap includes a chin pad adapted to cover the bottom of a patient's chin and a chin band having a first portion and a second portion extending from the chin pad to form a second closed loop around a patient's head.

Abstract: Support devices and pods for the head and neck region of patients undergoing radiation therapy are provided herein. The pod generally includes a support shell shaped to generally conform to the shape of the head and neck region of the patient, a foam insert that conforms to the head and neck region of the patient, and an immobilization facemask attached directly to the shell, thereby facilitating close placement of the radiation beam delivery device to the patient and reducing any attenuation and perturbation of radiation doses directed at the patient. The components of the pod are made from materials having properties that reduce any attenuation and perturbation of prescribed radiation doses.

Abstract: An airway positioning device facilitates the maintenance of a patent airway by correctly positioning a patient's head during anesthesia. A flat base supports a supine patient's head. A pair of rails slope downward from a first end of the base to a second end of the base. A track mounts with at least one of the rails. At least one adjustable support arm movably mounts with the track via a locking coupling device at an end of the arm distal to the patient's head. A patient engaging member mounted with an end of the arm proximal to the patient's head supports the patient's head in a desired position during an operation or procedure.

Abstract: A therapy tool designed to assist therapist to manually control and facilitate patient elbow and knee flexion-extension during walking, sit to stand, control in standing, and other functions is provided. The therapy tool includes a first cushion adapted to receive at least a portion of a person's shin or forearm, a second cushion adapted to cushion a person's knee, a elongate handle attached the first and second cushions in a manner such that the second cushion is disposed above the first cushion, and a horizontal extension adapted to provide a support surface for the patient.

Abstract: A patient stabilizing strap includes a base strap, which is removably attachable to a planar surface. At least one receiving portion is secured to the planar surface by the base strap. At least one elongate stabilizing portion has longitudinally spaced first and second stabilizing portion ends separated by a stabilizing portion body. Each first stabilizing portion end is removably attachable to a receiving portion to secure the stabilizing portion to the planar surface. Each second stabilizing portion end is removably attachable to an other second stabilizing portion end to encircle at least a portion of a patient body in cooperation with the planar surface.

Abstract: The invention comprises a laying, semi-vertical, or seated patient positioning, alignment, and/or control method and apparatus used in conjunction with multi-axis charged particle or proton beam radiation therapy of cancerous tumors. Patient positioning constraints are used to maintain the patient in a treatment position, including one or more of: a seat support, a back support, a head support, an arm support, a knee support, and a foot support. One or more of the positioning constraints are movable and/or under computer control for rapid positioning and/or immobilization of the patient. The system optionally uses an X-ray beam that lies in substantially the same path as a proton beam path of a particle beam cancer therapy system. The generated image is usable for: fine tuning body alignment relative to the proton beam path, to control the proton beam path to accurately and precisely target the tumor, and/or in system verification and validation.

Abstract: A patient restraining device is secured to a patient supporting structure to more safely support a person's body during transport from one place to another. The device includes a sheet of fabric and connector straps secured to the fabric. After the device is fastened to the patient supporting structure, and the person is positioned on the patient supporting structure, the fabric is wrapped about the person's body, and the connector straps are secured about the fabric and the person's body. Among other things, the device may be used to increase the “patient capacity” of an otherwise conventional ambulance cot.

Abstract: An immobilization device including an anterior component including a two-dimensional shaped section contoured to a shape of the human chest and an anterior outwardly bowed area relative to the two-dimensional shaped anterior section generally corresponding to the sternum of the wearer. The device also includes a posterior component including a two-dimensional shaped section contoured to a shape of the human back and a posterior outwardly bowed area relative to the two-dimensional shaped section corresponding to the spinal column of the wearer, with elongate cushion elements connected to and extending within a width of the posterior outwardly bowed area. A strapping system connects both the anterior and posterior components to one another.

Abstract: A positioning device to facilitate the maintenance of a patent airway by correctly positioning a patient's head under anesthesia during an operation or procedure comprising at least one adjustable support including a plurality of segments or sections selectively positionable relative to adjacent segments or sections and selectively lockable relative to each other having a patient engaging member coupled to the proximal end portion thereof to engage a portion of the patient's head to maintain the position of the patient's head during an operation or procedure.

Abstract: A method of positioning, holding, and immobilization of a patient on a radiation treatment table or patient support surface. The positioning device is an improved vacuum cushion for the immobilization of a patient's full body on a support surface for some type of therapy to be accurately delivered and repeated. The patient's body is to be positioned in a manner for treatment that can be reproduced during consecutive days of radiotherapy. The upper and lower body cushions both include an outer casing with a valve that is connectable to a vacuum source. The casings contain small spheres. The immobilization device is comprised of upper and lower body cushions, both non-porous, to be evacuated of air. The cushions are adjoined by interlocking frame members fixed at proximal ends of each cushion. The device can be secured on the support surface at predetermined points using commercially available indexing bars during the procedure.

Abstract: An apparatus for supporting a user comprising a continuous unitary elongate flexible member having first and second surfaces. The elongate member extends between first and second ends and has a central portion therebetween. The apparatus further comprises a pad disposed along the first surface of the central portion. The method comprises locating a central portion of the elongate member behind the neck of the user such that the pad is dispose between the elongate member and the neck of the user.

Abstract: A spine immobilizer with removable straps for efficiently providing removable straps upon a spine immobilizer for cleaning, maintenance, replacement, or inspection purposes. The spine immobilizer generally includes an immobilizer panel comprised of a semi-rigid structure, wherein the immobilizer panel has a central support, first wings laterally extending from a first end of the central support, and second wings laterally extending from a second end of the central support, a plurality of connectors extending from a back side of the immobilization panel along the first wings and the second wings, and a plurality of strap assemblies removably connected to the plurality of connectors. The plurality of strap assemblies are adapted to removably connect to a correlating strap assembly via a buckle-connector structure and join the first wings and join the second wings of the immobilization panel about a patient.

Abstract: A system and method for supporting a user's head in an upright position. A strap is provided that has a first end, a second end, a first attachment section proximate the first end, a second attachment section proximate the second end, and a center section. The center section of the strap is anchored to the head of the user. Tension is applied to the strap in order to lift the user's head and hold the user's head in an upright orientation. The tension in the strap is maintained by anchoring the strap to the user's torso. The strap can have elastic characteristics that enable the strap to stretch. As such, the strap can provide resistance to neck movements without preventing those neck movements. This enables muscle groups in the neck to be exercised and provide the possibility of rehabilitation.

Abstract: A medical backboard comprising a front board, a rear board, and one or more polypropylene honeycomb inserts situated between the front and rear board. The front board comprises a head recess, a torso recess, and a foot/heel recess for the insertion of gel pads. The front board comprises a plurality of lateral and longitudinal channels and ridges that increase the strength of the board and decrease the overall weight of the board. The rear board comprises lateral ridges in the neck and ankle areas that increase the strength of the board, and it also comprises a head recess, torso recess and/foot/heel recess that create a ground-contacting surface when the board is placed on the ground.

Abstract: A medical assembly includes a platform which is securely mountable to an operating room fixture, and a plurality of arms or arm modules coupled to the platform and each with a grasper for holding a surgical instrument or port. The medical assembly is particularly applicable for laparoscopic surgery although it is not limited thereto.

Abstract: A patient immobilization device for radiotherapy includes a one-piece composite body having a core and a carbon fiber reinforced skin encapsulating the core. The composite body further includes a posterior surface configured for mounting the composite body upon a radiotherapy support table, and an anterior surface defining a cradle. Positioning a patient upon the immobilization device and supporting the patient with the cradle enables emitting therapeutic radiation towards a craniospinal treatment site of the patient from a posterior side of the immobilization device while the patient is supported in a supine position. The emitted radiation may include proton beam radiation.

Abstract: A patient positioning apparatus for examination and treatment that allows an operator to rotate a patient about three body planes, positioning the semi-circular canals of the patient for proper treatment or diagnosis of conditions caused by abnormalities of the vestibular organs. This apparatus accomplishes three dimensional rotations by rotating about two orthogonal axes of rotation. The efficient and compact design of this apparatus allows the apparatus to be used in clinics or offices too small to accommodate a patient rotation device of the prior art.

Abstract: A support apparatus comprising a waist band, a thigh band, a lateral vertical strap attached to said waist band and two extensions attached to said thigh band, and a medial vertical strap attached to said waist band then wrapping medially down around the thigh and attaching to the thigh band.

Abstract: A system including a support panel and a fixation device for use in radiation therapy is disclosed. The support panel comprises a generally planar member that is arranged to be disposed adjacent an apparatus for producing a radiation beam to support a portion of the patient to which the radiation beam will be directed. The fixation device is arranged to be releasably secured to the support panel to hold the portion of the patient's body at a desired position. The fixation device includes attachment components which enable the releasable securement of the fixation device to the support panel without creating any attenuation discontinuities of a radiation beam passing therethrough.

Abstract: A system for positioning a patient on a treatment couchtop for SBRT is provided. The system includes a patient support panel and at least one positioning/fixation component for releasable mounting on the patient support panel at a desired position to immobilize a portion of the patient's body. The patient support panel includes a pair of longitudinally extending side rails having a series of longitudinally spaced indexing apertures for receipt of a locking bar for mounting a positioning/fixation component thereon at a discrete index position. The at least one positioning component includes a pair of clamping mechanisms for releasably securing that component to the side rails at any longitudinal position along the side rails.

Abstract: A backboard cover includes a sheet of flexible material having an upper portion for covering a backboard top surface. The sheet has a lower surface with a non-skid region for retaining the sheet's upper portion in position atop the backboard. The sheet has a plurality of apertures positioned and dimensioned for communicating with handholds in the backboard. The sheet has a portion that can extend over to the bottom surface of the backboard, for retaining the sheet on the backboard. The backboard cover further includes an absorbent pad affixed atop the sheet for absorbing and retaining bodily or other fluids that may be exuded during the patient's residence thereon. An affixing element such as, but not intended to be limited to, a hook-and-latch pad, is affixed adjacent a top edge of the sheet, for serving as a fixation site for at least a pillow thereto.

Abstract: A backboard for an automated cardio pulmonary resuscitation system, said backboard comprising a board element, the board element defining a plane and having a top edge, a bottom edge a first side edge and a second side edge; a set of connectors adapted for connection of the backboard to an automated cardio pulmonary resuscitation unit, said connectors being provided at said side edges; and at least one set of stabilizing elements extending away from an edge and transversely to said plane.

Abstract: A hip abduction orthosis for stabilizing the hip joints of a user, provided with a trunk engaging part, first and second thigh engaging parts and first and second coupling parts, wherein the first coupling part connects the first thigh engaging part with the trunk engaging part and the second coupling part connects the second thigh engaging part with the trunk engaging part. A distance between the first and/or the second thigh engaging part and the trunk engaging part is settable. An abduction angle of that thigh engaging part is settable. The distance and the abduction angle are coupled such that a first set distance between that thigh engaging part and the trunk engaging part is coupled with a first set abduction angle and a second set distance different from the first set distance is coupled with a second set abduction angle different from the first set abduction angle.

Abstract: A system for disposable, easily stored, single use, foldable backboard cushions for placement under a patient being transported by a medical backboard. The backboard cushions comprise an adhesive strip to removably adhere the cushion to a medical backboard during use. The cushions comprise living hinges to facilitate folding into a compact unit and unfolding for use. The system also provides a method whereby a choice of permeable or non-permeable cushions may be selected for use.

Abstract: Low-cost, light weight portable cervical traction or spinal decompression devices for home use by a patient. A carriage is slidable along a portion of a support structure parallel to a longitudinal axis. The carriage includes a restraining mechanism adapted to releasably restrain a portion of a patient's body to the carriage. The pneumatic traction force generating apparatus is operatively coupled to move the carriage relative to the support structure when in a pressurized state. The pneumatic traction force generating apparatus is adapted to maintain a generally static traction force during a treatment period when in the pressurized state without additional pressurized air being supplied. A hand pump operated by the patient is fluidly connected to the pneumatic traction force generating apparatus to inject pressurized air. A pressure relief mechanism operated by the patient is adapted to release pressure from the pneumatic traction force generating apparatus.

Abstract: A roll restricting device including: a support member, wherein the support member is configured to surround at least a portion of an individual, and further wherein the support member includes an outer surface, and an inner surface; a roll restriction member, wherein the roll restriction member substantially precludes an infant from rolling over; and optionally one or more roll restriction member fastener(s), wherein the one or more restriction member fastener(s) releasably secures the roll restriction member to the support member.

Abstract: The present invention relates generally to a support structure for fixating a patient to a treatment unit, and especially to a support structure for fixating the patient to a cardiopulmonary resuscitation unit. An embodiment of the support 5 structure (10) comprises a back plate (100) for positioning behind said patient's back posterior to said patient's heart and a front part (200) for positioning around said patient's chest anterior to said patient's heart. Further, the front part (200) can comprise two legs (210, 220), each leg (210, 220) having a first end (212, 222) pivotably connected to at least one hinge (230, 240) and a second end (214, 224) 10 removably attachable to said back plate (100). Said front part (200) can further be devised for comprising a compression/decompression unit (300) arranged to automatically compress or decompress said patient's chest when said front part (200) is attached to said back plate (100).

Abstract: An extendable-length, spine immobilizing backboard is disclosed. The backboard is collapsible to the length of a standard backboard for ease of storage and for use in supporting and transporting patients of average height, and a lower portion is telescopically extendable from an upper portion so as to adjustably accommodate patients of above average height. The upper and lower portions are joined by side shafts that telescopically insert into hollow tubes so as to form hand rails on either side of the backboard, and by a flat, rigid central extension that is slidably insertable into a central cavity so as to provide patient support across a gap between the upper and lower portions. The backboard can be collapsed to a length that is six feet, and extended to a length of eighty inches. In some embodiments, the backboard is wider than a standard backboard, being preferably 21 inches wide.

Abstract: There is provided a patient care and treatment platform that is connectable to a plurality of modules capable of providing medical functionality. The platform includes a housing and a patient support surface. The platform also includes a power receiver for receiving power. The platform further includes a module interface including power, data, and pneumatic spines having power data and pneumatic ports, respectively. The spines are operative to transfer data, power, and fluid within the platform. The ports are connectable to the modules to integrate the modules into the platform. The platform also includes a head fairing having a patient interface panel. The head fairing includes an inner surface that is substantially concave in shape and slopes away from the patient support surface to allow access to the head of a patient. The patient interface panel includes a plurality of ports connectable to electrical and pneumatic apparatus.

Abstract: A spinal immobilisation apparatus has a harness for immovably securing to the torso of a person and a separate head support of collarless construction for mounting about the head of a person. Releasable connection allows the head support to be adjustably secured on the harness in relation to the shoulders and back of the wearer. The harness configuration allows ready access to the wearer's chest area. Elastication allows the cheat to expand during breathing. The head support is of open-faced, open-topped structure having rigid side walls hingedly connected to a rigid rear wall.

Abstract: The present invention relates to a device that can be used to brace the pelvic region of a patient and to a stretcher for bracing the pelvic region of a patient. The pelvic brace includes a plurality of bracing elements that can at least in part be wrapped around or about the pelvic region of a patient. The bracing elements being configured so as to be able to adjustable in length by two different fasteners so that the bracing elements can be fitted to people of various sizes ranging from young children to large adults. The stretcher includes a retractable frame assembly and preferably one or more than one pelvic brace fitted to the frame assembly to applying pressure to the pelvic region of a patient on the stretcher.

Abstract: Support devices and pods for the head and neck region of patients undergoing radiation therapy are provided herein. The pod generally includes a support shell shaped to generally conform to the shape of the head and neck region of the patient, a foam insert that conforms to the head and neck region of the patient, and an immobilization facemask attached directly to the shell, thereby facilitating close placement of the radiation beam delivery device to the patient and reducing any attenuation and perturbation of radiation doses directed at the patient. The components of the pod are made from materials having properties that reduce any attenuation and perturbation of prescribed radiation doses.

Abstract: A backboard immobilization device includes a first section having a plurality of interconnected panels and a second section having a like plurality of interconnected panels. A coupling assembly releasably couples the first section to the second section. The coupling assembly comprises a male insert having a plurality of ratchet teeth. The male insert is coupled to the first section. A female coupler has a pawl for releasable engagement with the plurality of ratchet teeth. The female coupler is coupled to the second section. An assembly including the backboard immobilization device and an inflatable air bladder assembly is also disclosed.

Abstract: An immobilization device including an anterior component including a two-dimensional shaped section contoured to a shape of the human chest and an anterior outwardly bowed area relative to the two-dimensional shaped anterior section generally corresponding to the sternum of the wearer. The device also includes a posterior component including a two-dimensional shaped section contoured to a shape of the human back and a posterior outwardly bowed area relative to the two-dimensional shaped section corresponding to the spinal column of the wearer, with elongate cushion elements connected to and extending within a width of the posterior outwardly bowed area. A strapping system connects both the anterior and posterior components to one another.

Abstract: The invention provides an infant sleep system that can deter, reduce or eliminate several risk factors affecting infants while sleeping, including, but not limited to SIDS (Sudden Infant Death Syndrome), skull flattening, toxic gas theory, acid reflux or Gastro-Esophageal Reflux (GER), colic, and injuries resulting from falls.

Abstract: A breast-board system, components and methods of use therefore. A generally U-shaped wrist support with a flattened bottom and rounded post like tops that may be used as either a cupping-support or as a grasping-post is mounted on a post atop a tiltable breast-board. A second support having a generally U-shaped cross section mounted on a supporting framework extends from a base, which is rotatably mounted to the tiltable breast-board near the edge thereof. The base includes a portion extending over the edge of the breast-board, and, a slidable locking mechanism on the bottom surface, which may be retracted to slide the mechanism out of a recess located on the breast-board. The support may then be rotated to a desired position and the slidable locking mechanism actuated to engage with a desired recess on the breast-board.