# US 2021/0330302 A1 · Biological material sampling device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0330302 A1 - Document ID: US20210330302A1 - Status: Published application - Kind: A1 - Application number: 17/241,914 - Filed: 2021-04-27 - Published: 2021-10-28 - Earliest claimed: 2020-04-27 - Assignees: Hoowaki, LLC - Applicants: Hoowaki, LLC - Inventors: Ralph Hulseman; Nakul Ravikumar; Justin Ferdinand; Frank Patterson; Cameron McPherson; Andrew Wilkerson; William Dante Lacher - Web page: https://patentgrep.com/patent/US20210330302A1 ## CPC - A61B 10/02: Instruments for taking cell samples or for biopsy {(A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48)} - A61B 2010/0216: {Sampling brushes} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract This specimen collection tool can include a handle including a core manufactured by injecting a first material into a mold; wherein the core includes a flat portion, a protrusion and a proximal portion; a distal end having a cavity for receiving the core manufactured by injecting a second material into the mold wherein the second injection is performed without removing the handle from the mold and the second material surrounds the core; a first set of microfeatures disposed on the distal end having a second set of microfeatures disposed on the first set of microfeatures; a demolding pin included in the distal end; a support surface included on the core to support the core in the mold; and, a tapered tip included in the core operatively associated with a narrowing portion of the distal end to hinder removal of the distal end from the handle. ## Claims ### Claim 1 A specimen collection tool comprising a handle including a core configured to be manufactured by injecting a first material into a mold during a first injection; wherein the core includes a flat portion, a protrusion and a proximal portion; a distal end having a cavity for receiving the core configured to be manufactured by injecting a second material into the mold during a second injection wherein the second injection is performed without removing the handle from the mold and the second material surrounds the core; a first set of microfeatures disposed on the distal end having a second set of microfeatures disposed on the first set of microfeatures; a demolding pin included in the distal end and wherein the core extends into the distal end past the demolding pin; a support surface included on the core to support the core in the mold and configured to reduce curving of the core during the second injection; and, a tapered tip included in the core operatively associated with a narrowing portion of the distal end to hinder removal of the distal end from the handle. ### Claim 2 (depends on 1) The specimen collection tool of claim 1 including: a first row of pillars included in the first set of microfeatures wherein each pillar in the first row of pillars is a first distance from each other, and a second row of pillars adjacent to the first row of pillars wherein a first pillar in the first row of pillars is a second distance from a second pillar in the second row of pillars and wherein the first distance and the second distance are not equal. ### Claim 3 (depends on 1) The specimen collection tool of claim 1 wherein the support surface is a first support surface and disposed in a middle area of the core and a second support surface included in the core and disposed at a proximal area of the core. ### Claim 4 (depends on 1) The specimen collection tool of claim 1 including a first handle section having a first diameter and a second handle section having a second diameter wherein the first diameter is not equal to the second diameter. ### Claim 5 (depends on 1) The specimen collection tool of claim 1 including a break point defined in the handle. ### Claim 6 (depends on 1) The specimen collection tool of claim 1 wherein the specimen collection tool has over three times a cycle rate to failure when compared to a flock swab and a foam swab using an abrasion test. ### Claim 7 (depends on 1) The specimen collection tool of claim 1 wherein the distal end includes a tip devoid of microstructures. ### Claim 8 A specimen collection tool comprising a handle including a core configured to be manufactured by injecting a first material into a mold during a first injection; a distal end having a cavity for receiving the core configured to be manufactured by injecting a second material into the mold during a second injection wherein the second injection is performed without removing the handle from the mold; a first set of microfeatures disposed on the distal end having a second set of microfeatures disposed on a top of the first set of microfeatures; and, a tapered tip included in the core operatively associated with a narrowing portion of the distal end to hinder removal of the distal end from the handle. ### Claim 9 (depends on 8) The specimen collection tool of claim 8 including a demolding area included in the distal end. ### Claim 10 (depends on 9) The specimen collection tool of claim 9 including a demolding pin disposed in the demolding area. ### Claim 11 (depends on 9) The specimen collection tool of claim 9 wherein the core extends into the distal end past the demolding area. ### Claim 12 (depends on 8) The specimen collection tool of claim 8 including a support surface included on the core to support the core in the mold. ### Claim 13 (depends on 12) The specimen collection tool of claim 12 wherein the support surface is configured to reduce curving of the core during the second injection. ### Claim 14 (depends on 8) The specimen collection tool of claim 8 including: a first row of pillars included in the first set of microfeatures wherein each pillar in the first row of pillars is a first distance from each other, and a second row of pillars adjacent to the first row of pillars wherein a first pillar in the first row of pillars is a second distance from a second pillar in the second row of pillars and wherein the first distance and the second distance are not equal. ### Claim 15 (depends on 8) The specimen collection tool of claim 8 wherein the first material has a higher rigidity than the second material. ### Claim 16 (depends on 8) The specimen collection tool of claim 8 wherein the narrowing portion of the distal end is formed by the second injection. ### Claim 17 A specimen collection tool comprising a handle including a core configured to be manufactured by injecting a first material into a mold during a first injection; a distal end manufactured around the core by injecting a second material into the mold during a second injection wherein the second injection is performed without removing the handle from the mold; and, a set of microfeatures disposed on the distal end configured to receive a material and deposit the material on a test media. ### Claim 18 (depends on 17) The specimen collection tool of claim 17 including a tapered tip formed on the core during the first injection and a narrowing portion formed in the distal end during the second injection. ### Claim 19 (depends on 17) The specimen collection tool of claim 17 including: a first row of pillars included in the set of microfeatures wherein each pillar in the first row of pillars is a first distance from an adjacent pillar, and a second row of pillars adjacent to the first row of pillars wherein a first pillar in the first row of pillars is a second distance from a second pillar in the second row of pillars and wherein the first distance and the second distance are not equal. ### Claim 20 (depends on 17) The specimen collection tool of claim 17 wherein the set of microfeatures are disposed on a substrate included in the distal end and the substrate is fluid phobic.