# US 10,441,507 B2 · Syringe adapter with disconnection feedback mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,441,507 B2 - Document ID: US10441507B2 - Status: Granted - Kind: B2 - Application number: 14/691,873 - Filed: 2015-04-21 - Published: 2015-10-22 - Granted: 2019-10-15 - Earliest claimed: 2014-04-21 - Assignees: Becton, Dickinson and Company - Applicants: Becton Dickinson and Company Limited - Inventors: Laurie Sanders - Web page: https://patentgrep.com/patent/US10441507B2 ## CPC - A61J 1/2096: {Combination of a vial and a syringe for transferring or mixing their contents} - A61J 1/1406: {Septums, pierceable membranes} - A61J 1/2065: {having aligning and guiding means} - A61J 1/201: {having one piercing end} - A61J 1/2051: {having tap means, e.g. tap means activated by sliding} - A61J 1/2055: {having gripping means} - A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE ## Abstract A syringe adapter includes a housing having a first end and a second end with the first end configured to be secured to a first container, a cannula having a first end and a second end with the second end positioned within the housing, and a collet having a first end and a second end with at least a portion of the collet received within the housing. The collet includes a body defining a passageway, a seal member received by the passageway, and an arcuate, resilient locking member connected to the body of the collet. The collet is movable from a first position where the locking member is open to receive a mating connector to a second position where radially outward movement of the locking member is restricted. ## Claims ### Claim 1 A syringe adapter comprising: a housing having a first end and a second end, the first end configured to be secured to a first container; a cannula having a first end and a second end, the second end of the cannula positioned within the housing; a collet having a first end and a second end, at least a portion of the collet received within the housing, the collet comprising a body defining a passageway, a seal member received by the passageway, and a locking member connected to the body of the collet, the collet being movable by a mating connector from a first position where the locking member is open to receive the mating connector via radial outward movement of the locking member by the mating connector to a second position where radially outward movement of the locking member is restricted; and a disconnection feedback mechanism comprising an extension portion of the seal member configured to bias the collet towards the second end of the housing when the collet is in the second position, wherein the extension portion of the seal member is configured to engage a portion of the housing when the collet is moved from the first position to the second position thereby compressing the seal member and biasing the collet toward the second end of the housing, and wherein the extension portion of the seal member is not engaged with the housing when the collet is in the first position. ### Claim 2 (depends on 1) The syringe adapter of claim 1, wherein the extension portion of the seal member includes a frusto-conical surface. ### Claim 3 (depends on 2) The syringe adapter of claim 2, wherein the extension portion of the seal member tapers in a direction extending from the first end of the housing to the second end of the housing. ### Claim 4 (depends on 3) The syringe adapter of claim 3, wherein the extension portion narrows in width in a direction extending from the second end of the housing to the first end of the housing. ### Claim 5 (depends on 1) The syringe adapter of claim 1, wherein the disconnection feedback mechanism is configured to move the collet from a position adjacent to the first end of the housing to a position intermediate the first and second ends of the housing. ### Claim 6 A system for closed transfer of fluids comprising: a syringe adapter comprising: a housing having a first end and a second end, the first end configured to be secured to a first container; a cannula having a first end and a second end, the second end positioned within the housing; a collet having a first end and a second end, at least a portion of the collet received within the housing, the collet comprising a body defining a passageway, a seal member, and a locking member connected to the body, the collet being movable by a mating connector from a-first position where the locking member is open to receive the mating connector via radial outward movement of the locking member by the mating connector to a second position where radially outward movement of the locking member is restricted; and a connection arrangement having a first connection interface; a connection component comprising a membrane and a collet interface surface configured to receive and engage the locking member of the collet; and a disconnection feedback mechanism comprising an extension portion of the seal member configured to bias the collet towards the second end of the housing when the collet is in the second position, the disconnection feedback mechanism configured to provide an indication to a user when the first connection interface is disengaged from a corresponding connection interface of the mating connector, wherein the extension portion of the seal member is configured to engage a portion of the housing when the collet is moved from the first position to the second position thereby compressing the seal member and biasing the collet toward the second end of the housing, and wherein the extension portion of the seal member is not engaged with the housing when the collet is in the first position. ### Claim 7 (depends on 6) The system of claim 6, wherein the disconnection feedback mechanism is positioned within the housing of the syringe adapter. ### Claim 8 (depends on 6) The system of claim 6, wherein the collet includes a second connection interface that is configured to engage the first connection interface of the connection arrangement when the collet is in the second position. ### Claim 9 (depends on 6) The system of claim 6, wherein the disconnection feedback mechanism is configured to bias the collet towards the second end of the housing when the collet is in the second position, the collet is configured to move to a position intermediate the first and second ends of the housing to provide the indication to the user when the first connection interface is disengaged from the corresponding connection interface of the mating connector.