WORK STATIONS FOR PREPARATION OF MEDICAL DOSES
20260053710 ยท 2026-02-26
Inventors
- Amanda Gloria Jacobs (Chicago, IL, US)
- Gregory Dean Kramer (DeLand, FL, US)
- Jeffrey Robert Brittain (Charleston, SC, US)
Cpc classification
A61G12/001
HUMAN NECESSITIES
G16H20/10
PHYSICS
G01G15/00
PHYSICS
G01N21/95
PHYSICS
International classification
A61J7/00
HUMAN NECESSITIES
Abstract
Improved medical dose preparation work stations and accessories are described. The medical dose preparation work station includes a camera for capturing medical dose preparation images (e.g., to document preparation of a mediation dose). The camera may be actuated by an operator using a plurality of membrane buttons on a base of the medical dose preparation work station. The medical dose preparation work station further includes an adjustable arm to hold the camera at a desired focal length from a staging area defined by a tray such that objects in the images from the camera remain in focus. The tray includes a light side and a dark side configured to provide a high contrast background for an operator and for the camera.
Claims
1. A medical dose preparation work station comprising: a base; an imaging device disposed inside an imaging device housing, the imaging device having an imaging field including a medical dose preparation staging region, the imaging device being operable to output digital image data of the imaging field including the medical dose preparation staging region; an adjustable arm configured to couple the imaging device housing to a base of the work station; at least one button disposed on the base of the work station; a tray with a perimeter corresponding to a boundary of the imaging field and defining the medical dose preparation staging region, the tray comprising: a first side of a substantially light color; and a second side of a substantially dark color, wherein the first side and the second side are disposed on generally opposite sides of the tray; and a processor in operative communication with the imaging device and the display device, the processor configured to: receive input from the at least one button; and provide input commands to the imaging device, wherein the tray is configured to be flippable and reversible in the work station.
2. The medical dose preparation work station of claim 1, wherein the tray further comprises a plurality of peaks on each of the first side and the second side.
3. The medical dose preparation work station of claim 2, wherein each peak comprises a pyramidal structure having a square base.
4. The medical dose preparation work station of claim 1, wherein the tray further comprises a plurality of channels on each of the first side and the second side.
5. The medical dose preparation work station of claim 1, wherein the base further comprises at least one alignment knob, and wherein the tray further comprises at least one indent configured to align with the at least one alignment knob.
6. The medical dose preparation work station of claim 1, wherein the at least one button comprises a membrane button configured to be sterilizable.
7. The medical dose preparation work station of claim 1, wherein the base comprises a first connector, wherein the imaging device housing comprises a second connector, and wherein the adjustable arm is configured to be coupled to the imaging device housing and the base by the first and second connectors.
8. The medical dose preparation work station of claim 7, wherein the adjustable arm comprises a length configured to correspond to a focal length of the imaging device such that an object on the tray is in focus of the imaging device.
9. The medical dose preparation work station of claim 8, wherein the adjustable arm is configured to be removably coupled to the first and second connectors, and wherein the adjustable arm is interchangeable with a second adjustable arm of a different length than the adjustable arm, the second adjustable arm configured to be coupled to the imaging device housing and the base by the first and second connectors.
10. The medical dose preparation work station of claim 1, wherein the work station further comprises an adapter configured to be disposed between the tray and a scale, wherein the adapter comprises a cutout portion adapted to substantially surround a weighing surface of the scale.
11. The medical dose preparation work station of claim 10, wherein the adapter further comprises at least one flange configured to be disposed at least partially between the at least one alignment knob of the base and the at least one indent of the tray.
12. The medical dose preparation work station of claim 10, wherein the adapter further comprises a plurality of seats, wherein the tray further comprises a plurality of contact points on each of the first side and the second side, the contact points arranged to be seated on the seats of the adapter and align the tray with the adapter.
13. A tray of a medication preparation work station, the tray comprising: a first side of a substantially light color; and a second side of a substantially dark color, wherein the first side and the second side are disposed on generally opposite sides of the tray.
14. The tray of claim 13, wherein the tray further comprises a plurality of peaks on each of the first side and the second side.
15. The tray of claim 14, wherein each peak comprises a pyramidal structure having a square base.
16. The tray of claim 13, wherein the tray further comprises a plurality of channels on each of the first side and the second side.
17. The tray of claim 16, wherein the channels define perimeters of a plurality of subregions on each of the first side and the second side of the tray.
18. An adapter for a medication preparation work station, the adapter comprising: a body; a cutout portion; and at least one flange configured to be disposed at least partially between at least one alignment knob of a base of the medication preparation work station and at least one indent of a tray, wherein the cutout portion is adapted to substantially surround a weighing surface of a scale.
19. The adapter of claim 18, wherein the adapter further comprises a plurality of seats, wherein the seats are configured to seat and align with a plurality of contact points of the tray.
20. The adapter of claim 18, wherein the adapter is configured to be removable from the medication preparation work station.
Description
BRIEF DESCRIPTION OF THE FIGURES
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DETAILED DESCRIPTION
[0053] While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that it is not intended to limit the invention to the particular form disclosed, but rather, the invention is to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the claims.
[0054] Turning to
Camera Focal Length and Adjustable Arm
[0055] The camera 108 housed inside the camera housing 102 (illustrated in
[0056] The focal length may be restored to the proper distance above the flippable staging area tray 110 by the adjustable arm 104 when a scale is employed. The adjustable arm 104 is configured to have at least two height options, one corresponding to a non-scale configuration of the medical dose preparation work station 100, and another corresponding to a scale configuration of the medical dose preparation work station. The adjustable arm 104 may be a set of two interchangeable components, each of a different length (corresponding to two different heights of the camera 108 when each adjustable arm 104 is installed). In this configuration, the base 105 and the camera housing 102 include connectors 103a, 103b, respectively, adapted to be received by the adjustable arm 104. The connectors 103a, 103b reach into the adjustable arm 104 consisting of a back panel 107a and a front panel 107b, where fasteners are employed to couple the back panel 107a to the back panel 107b, and other fasteners are employed to couple the adjustable arm 104 to the connectors 103a, 103b and create a secure coupling between the adjustable arm 104 and the base 105 and camera housing 102. In a preferred embodiment, the fasteners are commercially available screws. In another embodiment, tongue and groove joints are utilized between the adjustable arm 104 and the camera housing 102 and the base 105, such that when the screws are driven home, the tongue and groove joints mate between each component and resiliently couple the components together. In another embodiment, latches inside the adjustable arm 104 mate with indents on the connectors 103a, 103b in order to couple the adjustable arm 104 to the connectors 103a, 103b. In another embodiment, the camera housing 102 and the base 105 may be releasably coupled to the adjustable arm 104, such that an operator may actuate a release mechanism (such as at least one button) to release the adjustable arm 104 from the camera housing 102 and/or the base 105. The adjustable arm 104 may contain wiring or circuitry 141a, 141b that is modular between each length of component to maintain power to the camera 108 and connection between the camera 108 and the processor 140 (described in further detail below). Alternatively, the camera housing 102 and the base 105 may be releasably force-fit to the adjustable arm 104, such that an operator need only pull each component away from each other, overcoming a certain energy threshold, in order to release each component from the other and interchange the length of adjustable arm 104 used. In another embodiment, the adjustable arm 104 has a main component and an insert component. The main component may be configured to the height necessary to maintain proper focal length in the non-scale configuration, and the insert component may be a component that is inserted between the main component of the adjustable arm 104 and the base 105 or between the main component of the adjustable arm 104 and the camera housing 102 and is configured to correspond to the increased height of the flippable staging area tray 110 in the scale configuration, such that the same focal length is maintained between the flippable staging area tray 110 and the camera 108 when the insert component is inserted. The insert component may be adapted to give a seamless appearance between the adjustable arm 104 and the camera housing 102 and/or the base 105, such that the aesthetic appearance of the medical dose preparation work station 100 is maintained, even in the scale configuration. In yet another embodiment, the adjustable arm 104 has a telescoping design, such that the adjustable arm is a single component which is slidable such as to be height adjustable. At least one clamp may be utilized in such an embodiment to selectively maintain the height of the adjustable arm 104 at a desired level. The clamp may be built-in to the adjustable arm 104 and sit flush within the perimeter of the adjustable arm 104 with a small indent for an operator to place a finger in order to actuate the clamp mechanism while maintaining aesthetic appearance of the medical dose preparation work station 100. Further, the design of the adjustable arm 104 with the telescoping height adjustment is preferably adapted to have a smooth profile in any position in order to maintain aesthetic appearance of the medical dose preparation work station 100.
[0057] As described in further detail with regard to
Membrane Buttons
[0058] As described above, at least one button 106a, 106b is also communicatively coupled to the processor 140 and is configured to actuate certain features of the camera. The at least one button 106a, 106b is preferably a membrane button, meaning that the actuation surface of the button has a flexible polymer membrane cover. The medical dose preparation work station 100 often resides in a sterile or clean environment, and typically under a hood, meaning that an operator will typically have to apply protective equipment and perform a sterilization process before proceeding to prepare a medical dose. This process can be time-consuming and includes the use of disposable materials such as gloves, hair nets, sanitizers, etc. Every time an operator is required to step away from the environment of the medical dose preparation work station 100, it requires the operator to perform the time-consuming and product-consuming processes again. For instance, known medical dose preparation systems will have a camera-actuating button outside of the sterile field of the work station (usually near an operators computer or on a touchscreen outside of the hood), which requires the operator to step out of the sterile field, actuate the button to take the picture, perform sterilization steps once again, and then continue work on preparing the medical dose. Having at least one button 106a, 106b in the sterile field drastically reduces the amount of times an operator must repeat the sterilization process, saving time and reducing the amount of product waste associated with preparing medical doses. For instance, an operator may perform four verification steps during a single dose preparation, requiring the operator to apply sanitizer to the operators gloves four times and wait thirty seconds for the sanitizer to dry before returning to the work station each time. Furthermore, the membrane structure of the at least one button 106a, 106b improves the haptic feedback for an operator wearing rubber gloves and is a better option for maintaining sterility than plastic or metal buttons which may have small gaps surrounding them where particulate matter may fall and bacteria may be harbored.
Flippable Staging Area Tray
[0059] Turning now to
[0060] The flippable staging area tray 110 includes a light side 111 and a dark side 113 in order to accommodate the visualization and capture of images of containers and medicaments of different colors on the flippable staging area tray 110 during preparation of a medical dose. This ensures the highest possible contrast between the flippable staging area tray 110 (which acts as a background for the preparation) and the containers and medicaments resting on the flippable staging area tray 110. For instance, conventional medical dose preparation workstations only included a white or light-colored tray. Although many containers have dark markings, making a white background the highest contrast, this is not true in all cases. For instance, some syringes, vials, and graduated cylinders have white or translucent markings, making a dark background more suitable for their use. Furthermore, it may be advantageous to have a white background in order to see whether any contaminant has entered a liquid medicament, such as if a part of a vial stopper has inadvertently fallen into a liquid medicament (for example, an IV bag), a condition known as coring. The dark piece of vial stopper in the transparent liquid will have the highest contrast when shown against a white background. Further, some drugs may exhibit color changes or precipitate out of solution when an incorrect dosage or combination of components has occurred, which could be used as a safety feature. In many medicaments, this color change manifests as normally transparent liquids combining to form white particulates, making a dark background a more preferable choice to maintain the highest level of contrast. One example of this is certain nutritional preparations, such as calcium and phosphorous. When the levels of calcium and phosphorous in the compounded dose are incorrect, a white precipitate may form and render the preparation inappropriate for administration to a patient, which precipitate may alert an operator of the error. Other drugs may change to certain colors (for example, pink or purple) when erroneous levels of compounds are mixed, making a white background preferable in order to visualize the color and intensity of the change. Furthermore, certain operators may prefer a light background or a dark background based purely on personal differences. Because of the variety in what background is preferable for each different compound prepared at the medical dose preparation work station 100, it is advantageous to have the flippable staging area tray 110 easily flippable between the light side 111 and the dark side 113 by an operator using the at least one indent 112a, 112b. The at least one indent 112a, 112b may also be helpful for aligning the scale-to-tray adapter 120 (described in more detail below in the description of
[0061] In yet another embodiment, the flippable staging area tray 110 comprises a screen that provides a backlight to the medicament preparation area. In such an embodiment, the screen is configured to have at least one light mode and one dark mode, which an operator may choose between depending on the required contrast for the drug being prepared. For instance, dark mode may provide no backlight with a normally dark background or a dark color backlight in order to provide high contrast with light colors of containers or drugs, while light mode may enable the light color backlight to engage for high contrast to dark color containers or drugs. In such an embodiment, it may not be necessary for an operator to manually flip the flippable staging area tray 110, but rather the flippable staging area tray 110 would be flippable in the sense that the backlight may be flipped on or off depending on the needs of the operator. In yet another embodiment, the flippable staging area tray 110 may be configured to change color based on direct control from the processor 140 without direct user input. This may be based on conditions sensed by the processor 140, such as a relatively low contrast image being captured, or by an ambient light sensor or other sensor in operative communication with the processor 140. In this way, a user does not need to worry about what background is displayed when prompted by a workflow to capture an image. A user may, however, be able to override the current condition if desired.
[0062] The flippable staging area tray 110 may also include contact points 114a-d, 134a-d. These contact points 114a-d, 134a-d allow the flippable staging area tray 110 to rest in consistent alignment on the base 105 of the medical dose preparation work station 100 in the non-scale configuration (described and shown in greater detail above in the description of
[0063] The flippable staging area tray 110 may also include a series of peaks 118, 138 on the surfaces of the light side 111 and the dark side 113, respectively. These peaks 118 create geometries which allow for containers and instruments to reliably rest on the surfaces of the flippable staging area tray 110. For instance, if an operator needs to temporarily set down a syringe in order to complete another task, the barrel of the syringe can rest between two adjacent peaks 118, 138 while mitigating the risk that the syringe will roll along the surfaces of the flippable staging area tray 110. The peaks 118, 138 are a pyramid shape with a square base in a preferred embodiment. The pyramidal shape allows for different shapes and sizes of containers to resiliently rest in the spaces between the peaks 118, 138. In one embodiment, the light side 111 and the dark side 113 are made up primarily of a polymer, such that the peaks 118, 138 may come to a sharp point at the top of the pyramid shape without significantly increasing the risk that a container will break when placed against the peaks 118, 138 with inadvertently excessive force. In another embodiment, the light side 111 and the dark side 113 are made up primarily of a metal (preferable a light metal, such as aluminum), and the tops of the pyramidal shapes of the peaks 118, 138 are rounded or truncated in order to ensure no accidental breach of a container occurs when it is placed to rest on the flippable staging area tray 110.
[0064] The flippable staging area tray 110 may further include at least one channel 116a-e, 136a-e set into the light side 111 and the dark side 113, respectively. The at least one channel 116a-e, 136a-e provides another geometry in which an operator may rest a container during preparation of a medicament. In a preferred embodiment, the flippable staging area tray 110 includes five channels 116a-e, 136a-e on each of the light side 111 and the dark side 113, respectively. In this preferred embodiment, three channels 116a-c, 136a-c are placed transverse to the length of the flippable staging area tray 110 on each side 111, 113, with two channels 116a, 116c, 136a, 136c placed closer to the edges of the flippable staging area tray 110 on each side 111, 113, and one channel 116b, 136b placed substantially in the center of the length of the flippable staging area tray 110 on each side 111, 113. Two channels 116d, 116e, 136d, 136e are provided transverse to the width of the flippable staging area tray 110 on either side 111, 113 and are generally disposed towards the edges of the flippable staging area tray 110. In this preferred embodiment, the channels 116a-e, 136a-e create different areas on the flippable staging area tray 110 that may aid an operator in organizing where different containers and components are on the flippable staging area tray 110. The channels 116a-e, 136a-e themselves may be configured to provide a deep well for placement of certain thin, long containers and/or to provide greater protection against items leaving the surfaces of the of flippable staging area tray 110.
[0065] Different configurations of the features on the flippable staging area tray are also contemplated. For instance, one half of each surface 111, 113 may be completely flat to help accommodate IV bags being prepared. In some embodiments, a portion constituting less than half of each surface 111, 113 may be completely flat. The different features of the flippable staging area tray 110, such as the peaks 118, 138 and channels 116a-e, 136a-e may also provide reference points for pharmacy workflow management software to perform an auto-cropping operation on images and video-streams captured by the camera 108. For instance, the pharmacy workflow management software may be calibrated to the design of the surfaces 111, 113, and may then be able to recognize obstructions to the surfaces 111, 113 constituting areas of interest for the captured images or video-streams. The workflow management software may then crop out any portion of the image or video-stream not within the area of interest in order to efficiently store information on the preparation of each medical dose. The workflow management software may further provide steps for an operator to perform a flipping operation on the flippable staging area tray 110. The workflow management software may have pre-loaded steps based on a selected medicament being prepared at the medical dose preparation work station 100 which direct an operator as to which surface 111, 113 should be used at the present preparation step or which direct an operator to flip the flippable staging area tray 110 at various points in the medicament preparation. In another embodiment, the workflow management software is configured to verify that the correct surface 111, 113 is used based on an image received from the camera 108. The image used to verify the correct surface 111, 113 may be an image of the surface 111, 113 without any medicament or containers on it, or alternatively may be based on a recorded image of the drug preparation container. In another embodiment, the workflow management software generates an alert when it determines that the incorrect surface 111, 113 was used for the given step in the medicament preparation. The workflow management software may then prompt the operator to flip the flippable staging area tray 110 to the correct surface 111, 113 and cause another image to be captured from the camera 108. In one embodiment, the workflow management software does not allow the operator to proceed to the next step in the workflow until the correct surface 111, 113 is used.
Scale-to-Tray Adapter
[0066] Turning now to
[0067] The body 124 also includes at least one flange 122a, 122b, which preferably align with the at least one indent 112a, 112b such that the at least one flange 122a, 122b extends at least partially into the at least one indent 112a, 112b and fits in the space between the alignment knobs 109a, 109b and the at least one indent 112a, 112b when the medical dose preparation work station 100 is in the scale configuration. The at least partial extension of the at least one flange 122a, 122b into the at least one indent 112a, 112b also further ensures proper alignment of the scale-to-tray adapter 120 and the flippable staging area tray 110 in the medical dose preparation work station 100.
[0068] The body 124 is configured to be seated on the perimeter of a scale for gravimetric dose preparation. The scale, preferably a Mettler Toledo MX6002 precision scale, may be placed on the base 105 and the cutout portion 125 substantially surrounds the perimeter of the scale, such that a portion of the body 124 of the scale-to-tray adapter 120 rests upon the measuring surface of the scale. The flippable staging area tray 110 then rests upon the scale-to-tray adapter 120, such that the weight force of any medicament or container on the flippable staging area tray 110 is translated through the scale-to-tray adapter 120 to the scale for measurement.
Pharmacy Preparation System
[0069] Turning now to
[0070] In some embodiments, the medical dose preparation work station 100 is communicatively coupled directly to the network 280 (i.e. bypassing or in addition to the pharmacy preparation computer 260) through the processor 140. The processor is in operative communication with each of the memory 150, camera 108, and buttons 106a, 106b in turn.
[0071] A pharmacy preparation system 200 is thereby formed configured for use with the above disclosed embodiments of the medical dose preparation work station 100.
Conclusion
[0072] While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description is to be considered as exemplary and not restrictive in character. For example, certain embodiments described hereinabove may be combinable with other described embodiments and/or arranged in other ways (e.g., process elements may be performed in other sequences). Accordingly, it should be understood that only the preferred embodiment and variants thereof have been shown and described and that all changes and modifications that come within the spirit of the invention are desired to be protected.
[0073] The foregoing description of the present invention has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit the invention to the form disclosed herein. Consequently, variations and modifications commensurate with the above teachings, and skill and knowledge of the relevant art, are within the scope of the present invention. The embodiments described hereinabove are further intended to explain known modes of practicing the invention and to enable others skilled in the art to utilize the invention in such or other embodiments and with various modifications required by the particular application(s) or use(s) of the present invention. It is intended that the appended claims be construed to include alternative embodiments to the extent permitted by the prior art.