Chain of custody forms and methods
10209265 ยท 2019-02-19
Assignee
Inventors
Cpc classification
B42D5/002
PERFORMING OPERATIONS; TRANSPORTING
B01L2200/141
PERFORMING OPERATIONS; TRANSPORTING
G01N35/00732
PHYSICS
G09F3/0288
PHYSICS
International classification
B42D15/00
PERFORMING OPERATIONS; TRANSPORTING
G09F3/00
PHYSICS
B01L3/00
PERFORMING OPERATIONS; TRANSPORTING
G09C3/00
PHYSICS
Abstract
A chain-of-custody form has integrated removable specimen seals, and the form may be used to identify a test sample collected from a donor and to document the handling of the test sample. The form may be printed upon a single sheet that has a first portion and a second portion. The first portion includes a first section having one or more spaces for recording demographic and testing information, and one or more indicia of the information to be recorded in one or more marked spaces; and a second section having a marked space for the donor to affix a signature and one or more indicia of the purpose of the space. An identifier that is unique to the form is recorded within the first portion and within the second portion. The identifier includes an specimen identification number or some other method of specimen identification such as a bar-code.
Claims
1. A method of maintaining a chain of custody, comprising: causing a printer to print demographic information and test information upon a form that consists of a single printable sheet that is not affixed to any other sheets, the single printable sheet consisting of only a single ply that is not affixed to any other plies, the sheet comprising at least a first portion and a second portion, one or more seals within the second portion, each seal being removable from the sheet and capable of being affixed to a closed container so that contents of the container cannot be tampered with without either removing the seal or causing visible damage to the seal, and an identifier that is unique to the form and is recorded at least once within the first portion and at least once upon each of the one or more seals in the second portion; collecting from a donor at least one specimen comprising biological material, the collecting taking place under supervision of an administrator; placing the biological material comprised by one of the specimens into a container; and closing the container and affixing at least one of the one or more seals to the container so that contents of the container cannot be tampered with without either removing the seal or causing visible damage to the seal.
2. The method of claim 1, comprising performing at least one assay upon the specimen.
3. The method of claim 1, comprising acquiring a signature of the administrator.
4. The method of claim 1, comprising acquiring a signature of the donor.
5. The method of claim 3 or claim 4, wherein the acquired signature is a digital signature.
6. The method of claim 5, comprising recording a representation of the digital signature upon the form.
7. The method of claim 1, wherein the identifier comprises a form control code that is unique to the printable sheet.
8. The method of claim 7, wherein the identifier is present in human-readable form.
9. The method of claim 7, wherein the identifier is present in machine-readable form.
10. The method of claim 1, wherein the first portion of the printable sheet comprises: a first section within the first portion, comprising one or more marked spaces for recording demographic information and test information and one or more indicia of respective purposes of the one or more marked spaces; and a second section within the first portion, comprising a marked signature space for the donor to affix a signature and one or more indicia of a purpose of the marked signature space.
11. The method of claim 1, wherein the printable sheet comprises a perforation for separating the second portion from the first portion.
12. The method of claim 1, wherein the printable sheet comprises a third portion, and the identifier is recorded at least once within the third portion.
13. The method of claim 12, wherein the printable sheet comprises: a perforation for separating the first portion from the second portion or from the third portion; and a perforation for separating the second portion from the first portion or from the third portion.
14. The method of claim 1, wherein: the printable sheet lacks a marked space for recording demographic information; the printable sheet lacks a marked space for recording test information; and causing the printer to print the form comprises causing the printer to print demographic information and test information upon the printable sheet.
15. The method of claim 1, wherein the form bears the unique identifier in at least one place before the printer has printed anything upon the form.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The accompanying drawings depict certain embodiments of the invention and form a part of the disclosure of this invention. While the written and illustrated disclosure herein amplifies example embodiments of the invention, they are by way of illustration and example only, and the invention is not limited thereto. The spirit and scope of the present invention are limited only by the terms of the appended claims.
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DETAILED DESCRIPTION
(9) The following description is provided to enable any person skilled in the art to make and use the invention and is provided in the context of a particular application. Various modifications to the described embodiments are possible, and the generic principles defined herein may be applied to these and other embodiments and applications without departing from the spirit and scope of the invention. Thus, the invention is not limited to the embodiments and applications shown, but is to be accorded the widest scope consistent with the principles, features, and teachings disclosed herein.
(10) Embodiments of the invention may comprise a blank form implemented upon a single printable sheet.
(11) The blank form 100 is preferably printed, e.g., during manufacture or at the time of use, on white (or other light color) stock to provide a uniform background for visible printing. The blank form 100 may be provided in any convenient size, such as, e.g., A4 or 8 inches by 11 inches.
(12) As depicted in
(13) In an embodiment of the invention, the blank form 100 includes an identifier, which may be referred to herein as a form control code, which appears at least once in each portion and comprises information sufficient to function as an identifier. The form control code preferably consists of one or more sequences of digits or, alternatively, of alphanumeric characters and is globally unique to the blank form 100 on which it appears. In a preferred embodiment of the invention, at least a human-readable representation 130 of the form control code is present within each portion of the blank form 100. In some embodiments of the invention, a machine-readable representation 131 (e.g., a bar code) of the form control code may accompany or take the place of the human-readable representation.
(14) In a preferred embodiment of the invention, the form control code 130 is printed on each blank form 100 as the blank form 100 is manufactured, in conjunction with a process that ensures that no two blank forms 100 share a form control code 130. In an alternative embodiment of the invention, the form control code 130 may be applied to the form after manufacture thereof, e.g., at the time that the form is put into use. In such an embodiment, the form control code may be, e.g., handwritten, typed, or stamped on the blank form 100 or printed on it when the blank form passes through a printer.
(15) Aside from the form control code 130a, the data portion 120 includes several sections that each comprise one or more marked spaces for recording information and one or more indicia of the information to be recorded in each of the respective marked spaces. In a preferred embodiment of the invention, some or all requested information is obtained through one or more computer software applications, and the obtained information is inserted, e.g., by passing the blank form 100 through a printer. In addition to or instead of the foregoing, some or all of the information may be otherwise entered, e.g., by handwriting, typing, and/or inked stamps.
(16) A requisition data section 135 in the data portion 120 comprises one or more marked spaces for recording demographic and test data and one or more indicia of the data to be recorded in the one or more marked spaces. As depicted in
(17) The data portion 120 also includes a collection data section 136, which, in connection with an embodiment of the invention, is completed and signed by collection site personnel. In an embodiment of the invention, the collection data section 136 records data related to the procedure and circumstances under which the specimen was obtained. As depicted in
(18) In an embodiment of the invention, the data portion 120 includes a donor certification section 137. As depicted in
(19) In an embodiment of the invention, the data portion 120 includes a chain-of-custody section 138. As depicted in
(20) As depicted in
(21) The blank form 100 depicted in
(22) In an embodiment of the invention, the form 100 may include a receipt portion 121 that comprises the unique form control code 130b. In an embodiment of the invention, the receipt portion is detached from the data portion 120 after collection of the specimen and signature of the designated sections of the data portion. The detached receipt portion 121 is provided to the donor after the specimen is collected and the required sections of the form 100 have been completed and signed.
(23) Depending on the embodiment of the invention, the receipt portion 121 may include other information. Such other information may include, for example, contact information, including telephone numbers, facsimile numbers and e-mail addresses, for the laboratory responsible for performing the analyses. The donor receipt may also include instructions from the laboratory to the donor, e.g., as depicted in
(24) According to embodiments of the invention, the seal portion 122 of the form 100 includes one or more generally elongated security seals 144 and one or more generally rectangular tracking labels 145. As depicted in
(25) In an embodiment of the invention, both seals 144 and the tracking label 145 are backed by a pressure sensitive adhesive such as is well known in the art. The perimeters of each are preferably die cut to permit the seals 144 and the tracking label 145 to be readily separated by hand from the blank form 100. In the depicted embodiment of the invention, each seal 144 is scored 148 several times in an X pattern, which is intended to improve the tamper-resistance of each seal 144 by drastically increasing the difficulty of removing a seal 144 intact from a specimen container.
(26) The color, size, printing, and configuration of the seals 144 and tracking label 145 may vary substantially from the depiction in
(27) For example, the seals 144 depicted in
(28) The rectangular tracking label 145 may, in connection with an embodiment of the invention, be secured, e.g., to an outer container that holds the specimen container or containers during transport from the collection site to the laboratory. Alternatively, the tracking label 145 may be affixed to a manifest describing the shipment that includes the specimen containers. A rectangular tracking label 145 such as depicted may also secure certain kinds of containers, such as, e.g., by holding closed the hinged lid of a container made of a rigid material.
(29) The above description of the contents and layout of the blank form 100, its division into portions, the subdivision of any portion into sections or otherwise, and the data items thereon is purely illustrative of one particular embodiment of the invention. In any particular embodiment, the location and contents of any words, marks, and/or data items may vary from the depiction in
(30) In an embodiment of the invention, the data used to populate the blank form 100 may be viewed, edited, and/or stored electronically. Such electronic manipulation of data is most commonly achieved using one or more computer programs, typically a special-purpose application or applications. In connection with an alternative embodiment of the invention, commercially-available, general-purpose software, e.g., Microsoft Word, Adobe Acrobat or Adobe Acrobat Reader, may be used for some or all data processing associated with the blank form 100. According to an embodiment of the invention, the data is entered using a computer, which may be referred to as a client or workstation, and then the form is printed on a blank form 100.
(31) Electronically recorded data may be stored locally and/or transmitted to a remote computer, which may be referred to as a server, via a communications infrastructure. The communications infrastructure may comprise any type of public or private network, such as the Internet, an intranet, a virtual private network, or any other link that supports electronic communication from the client to the server. Such communication may be secured, e.g., by encryption and or other well-known means.
(32) Any such electronically recorded data may be used to render and/or reconstruct an image of the chain of custody form at the point of collection and/or to cause the chain of custody form to be printed, e.g., upon a form blank 100. This data may also be shared with other laboratory information systems, e.g., to pre-accession the specimen in the laboratory or other computer systems. Pre-accessioning may speed order entry and reduce the opportunities for error that may attend fully manual entry of orders.
(33) In connection with an alternative embodiment of the invention, the content and placement of data may be determined other than at the time the blank form is manufactured.
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(35) In another embodiment of the invention, chain of custody may be maintained partly or completely in electronic form, using digital signatures to eliminate some or all handwritten signatures. In this connection, the term digital signature may comprise any electronic confirmation of the identity of the nominal signer that may not easily be duplicated without the signer's presence and participation.
(36) For example, obtaining a digital signature may comprise obtaining identifying data via a signer-specific token. This token may be obtained through a public key infrastructure such as is well known in the art, which may comprise, e.g., a so-called smart card or other physical token. Alternatively, the token may be biometric, such as, e.g., a fingerprint, retina scan, or facial geometry, among other possibilities known in the art. For another alternative, the token may be a digital image of a handwritten signature, obtained e.g., by having the signer use a stylus on a sensing device or by placing a paper form on a sensing device, upon which the signature is made with a pen.
(37) Once captured, the identifying token may be included with other data related to the test in a data set that a cryptographic hash function, such as is well known in the relevant art, uses to create a specimen or transaction identifier. In connection with an embodiment of the invention, a digital signature obtained from a donor may be so used to generate a hash value (not pictured) that is printed on one or more portions of the form in human-readable and/or machine-readable form. In connection with a further embodiment of the invention, the specimen or transaction identifier may be printed on one or more seals and/or tracking labels that are to be applied to a specimen container, and the chain of custody may otherwise be fully electronic.
(38) In connection with a fully electronic chain of custody, the computed specimen or transaction identifier may be stored persistently, e.g., in a database management system.
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(40) The seal 144 that appears in
(41) In addition to or as an alternative to destructible seals, other types of seals may be employed to prevent tampering or to deter it by leaving evidence. For example, tamper-evident seals are known in the art that leave behind a message (e.g., VOID or OPENED) on the surface of the container if the seal is removed. Replacement of such a seal, even if possible, does not obliterate the indication that tampering occurred.
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(43) As depicted in
(44) The collection site 302 may keep supplies on hand, e.g., of specimen containers, chemicals for sample preservation, and chain-of-custody sealing tape or seals and forms (preprinted forms or computer generated), as well as a refrigerator and a computer 315.
(45) The computer 315 may further comprise a central processing unit (CPU) and various forms and configurations of random access and nonvolatile memory. The computer 315 may comprise fixed and/or removable media capable of storing data and/or instructions executable by a CPU. The computer 315 may include a network card through which it connects to a local server which, in turn, is connected to a remote server 320 via a communication infrastructure comprising, e.g., a dedicated wide-area network, the Internet, and/or any other network or link capable of data transmission. The computer 315 may be operable to collect the chain-of-custody form data and to store it locally and/or to transmit it to a server 320, which may be the remote server 320 or another local or remote server. On receiving the data, the server may store it in a database management system, such as is well known in the art.
(46) Alternatively, a mobile collection site 302 may be used to collect samples, particularly from donors who cannot travel to a permanent collection site 302. A mobile collection site 302 may include each of the items found in a permanent collection site 302 described above.
(47) A laboratory 306 may be any facility capable of analyzing biological samples. The laboratory 306 will typically contract with a delivery service 304 to pick up the samples from the collection site 302 and deliver them to the laboratory 306 for analysis. Samples, along with the corresponding chain-of-custody forms, may be hand carried by a delivery service 304 or shipped, e.g., via an express service, such as FedEx, DHL, UPS Priority Service, or a courier, ensuring that specimens arrive at the laboratory no later than the next day.
(48) Once the sample is delivered to the laboratory 306, laboratory personnel inspect the chain-of-custody forms to ensure the accuracy and completeness of the information, and may assign an accession number (a sequential identification number used for tracking purposes at the laboratory) to the sample if necessary. If the apparent condition of the specimen indicates that it has been collected, sealed, or otherwise handled to make it unsuitable or unreliable as a test sample, the laboratory 306 will not test the specimen. An acceptable specimen will be delivered to the appropriate clinical accession area (e.g. urinalysis, chemistry, microbiology) for analysis.
(49) In connection with one exemplary embodiment of the invention, the laboratory 306 maintains all tangible and/or electronic chain-of-custody records.
(50) The flowchart 400 in
(51) Once a sample has been collected and packed for transport with its associated chain of custody form, a delivery service company 304 (
(52) Upon receipt of a sample, the accessioner may in connection with an embodiment of the invention sign and date the chain of custody form and then inspect the received sample in block 424. In embodiments of the invention, this inspection 424 may comprise, e.g., verifying that the samples match the description from the test requisition, reviewing the chain of custody recorded prior to delivery, and/or inspecting the condition of the seal or seals and recording the condition of the seal or seals in a designated space in the chain of custody form. Consequently, in block 426, the accessioner determines whether the sample and chain of custody are acceptable. If any discrepancy and/or error is found (e.g., the collector did not sign the chain of custody, the collector did not check one of the specimen temperature boxes), the sample may be rejected in block 428, although it may in some circumstances be possible to resolve the discrepancy and process the sample. If the accessioner or other laboratory representative determines that the sample and form are both acceptable, the sample, and, in connection with some embodiments of the invention, the chain of custody form will be delivered to the appropriate accession area at step 430 for testing.
(53) The flowchart 430 in
(54) Collection begins at step 450 when the donor reaches the collection site. At step 452, data regarding the donor, the requisition, and/or the test may be recorded, e.g., by entry into a computer and/or retrieved, e.g., from one or more local and/or remote databases. The donor is then asked to provide the sample in step 454. To ensure that the sample comprises material from the donor and only material from the donor, the donor may, according to an embodiment of the invention, be accompanied and/or supervised in this step. In connection with embodiments of the invention, provision of the specimen in this step may include allowance for modesty, e.g., when the donor is providing a urine specimen, but such allowance preferably does not preclude supervision that is sufficient to maintain the integrity of the sample.
(55) In any particular instance, a specimen may not be provided following step 454. For example, a donor may decide not to follow through with the test. Or, in some case, a donor may be unable to emit urine for a time consequent to having recently voided. Step 456 represents recognition that a specimen has or has not been provided.
(56) If no specimen has been obtained, the collector receives instructions, e.g., from a manual of procedures or computerized system, in step 458. The instructions may vary depending on the embodiment of the invention, the policies of the collection site, and or the laboratory service provider. In accordance with an embodiment of the invention, for example, the collector may be instructed to explain to an uncooperative donor the reason for the test and the possible consequences of refusal. As another example, the collector may be instructed to allow a donor to wait before attempting again to produce a urine sample. In connection with embodiments of the invention, other instructions may be provided that are appropriate for various other situations.
(57) Following receipt of the instructions, the collector in step 460 records the status of the collection attempt, e.g., by entering data in the provided computer. In step 462, the collector determines, possibly by following the instructions provided in step 458, whether to resume collection. If it is decided not to resume collection, this fact is recorded in step 464, and step 466 represents termination of this collection attempt.
(58) Once the donor has provided a specimen, the collector may, in connection with an embodiment of the invention, verify that the lid is secure and inspects the specimen for possible adulteration. If this inspection reveals that the donor has adulterated the specimen or substituted another specimen for the one requested, a second sample is collected. This inspection may comprise, e.g., measurement of the specimen's temperature promptly after collection If the temperature is unacceptable, possibly indicating, e.g., that the sample was not recently produced by the donor, a second specimen may be collected.
(59) If the temperature of the specimen is acceptable and no evidence of adulteration is found, the collector may proceed to step 470, which may in connection with an embodiment of the invention comprise, e.g., recording the type and temperature of the specimen. Step 470 may comprise recording any remarks that the collector wishes to add regarding the specimen or its collection. In connection with embodiments of the invention, recording information in step 470 may comprise, e.g., handwriting, typing, and or stamping information on the blank form and/or entering information for electronic storage and/or printing on a blank form. In an embodiment of the invention, entry of the test information into, e.g., a computer, is followed in step 472 by printing a chain-of-custody form upon a blank form.
(60) In an embodiment of the invention, step 474 comprises the collector affixing a tamper-evident seal from a form across the container lid in the presence of the donor, dating the seal before or after it has been placed on the specimen container, and having the donor initial the seal. As shown in
(61) Returning to
(62) In connection with an embodiment of the invention, the collector in step 478 scans the bar code from the chain-of-custody form, the seal or seals, and/or a tracking label. The collector may place the specimen container or containers in one or more specimen bags, which may then be sealed. In connection with an embodiment of the invention, a tracking label bearing the form identification code in human-readable and/or machine-readable form may separated from the chain-of-custody form and applied to the specimen bag.
(63) In connection with an embodiment of the invention, the portion of the chain-of-custody form from which the seal or seals and/or the tracking label may be removed may, following removal of the seal or seals and/or tracking label, be separated from the remainder of the chain-of-custody form and discarded.
(64) Step 480 represents electronic transmission of information related to the donor, test, collection, and/or specimen to a lab information system in connection with an embodiment of the invention.
(65) The flowchart 500 in
(66) In steps 510, 512, and 514, the donor presents at the collection site, data is gathered, and the donor is escorted to provide a sample in much the same was as is described above in connection with
(67) The invention thus has been disclosed broadly and illustrated in reference to representative embodiments described above. Those skilled in the art will recognize that various modifications can be made to the present invention without departing from the spirit and scope thereof.