# US 2019/0167964 A1 · Percutaneous access apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167964 A1 - Document ID: US20190167964A1 - Status: Published application - Kind: A1 - Application number: 16/097,780 - Filed: 2017-05-10 - Published: 2019-06-06 - Earliest claimed: 2016-05-12 - Assignees: Renishaw PLC - Applicants: Renishaw PLC - Inventors: Trefor Owen LEWIS; Patricia Grace STEWART - Web page: https://patentgrep.com/patent/US20190167964A1 ## CPC - A61M 39/0247: {Transcutaneous or percutaneous access sites to the inside of the body} - A61M 39/04: having pierceable self-sealing members - A61M 39/105: {Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes (multi-channel connectors in general F16L37/56)} - A61M 2039/0081: {Means for facilitating introduction of a needle in the septum, e.g. guides, special construction of septum} - A61M 2039/0205: {for injecting media} - A61M 2039/025: {through bones or teeth, e.g. through the skull} - A61M 2039/0261: {Means for anchoring port to the body, or ports having a special shape or being made of a specific material to allow easy implantation/integration in the body} - A61M 2039/0264: {with multiple inlets or multiple outlets} - A61M 2039/027: {having a particular valve, seal or septum} - A61M 2039/0276: {for introducing or removing fluids into or out of the body} - A61M 2039/0282: {with implanted tubes connected to the port} - A61M 2039/0288: {protectors, caps or covers therefor} - A61M 2039/082: {Multi-lumen tubes} - A61M 2205/12: with interchangeable cassettes forming partially or totally the fluid circuit - A61M 2207/00: Methods of manufacture, assembly or production - A61M 2210/0687: Skull, cranium - A61M 2210/0693: Brain, cerebrum - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A percutaneous fluid access apparatus includes a percutaneous fluid access device. The percutaneous fluid access device has a base portion including a subcutaneous portion and at least one port for connection to one or more fluid conduits within a body of a patient. A housing has at least one fluid channel and at least one seal for sealing the at least one fluid channel, and the housing is removably attachable to the base portion. The at least one fluid channel is in fluid communication with the at least one port when the housing is attached to the base portion. ## Claims ### Claim 1 A percutaneous fluid access apparatus including a percutaneous fluid access device comprising: a base portion including a subcutaneous portion and at least one port for connection to one or more fluid conduits within a body of a patient, and a housing comprising at least one fluid channel and at least one seal for sealing the at least one fluid channel, wherein the housing is removably attachable to the base portion, and the at least one fluid channel is in fluid communication with the at least one port when the housing is attached to the base portion. ### Claim 2 (depends on 1) An apparatus according to claim 1, wherein the base portion has an extracorporeal surface, wherein the housing is removably attachable to the extracorporeal surface. ### Claim 3 (depends on 1) An apparatus according to claim 1, wherein the base portion has a subcutaneous surface, wherein the housing is removably attachable to the subcutaneous surface. ### Claim 4 (depends on 1) An apparatus according to claim 1, wherein the base portion has an extracorporeal surface and a recess, wherein the housing is adapted to be inserted into the recess through the extracorporeal surface. ### Claim 5 (depends on 1) An apparatus according to claim 1, wherein the housing further comprises at least one filter in the least one fluid channel. ### Claim 6 (depends on 1) An apparatus according to claim 1, further comprising a connector device having at least one fluid duct, wherein the connector device is adapted for connection to the percutaneous fluid access device to establish fluid communication between the at least one fluid duct and the at least one fluid channel. ### Claim 7 (depends on 6) An apparatus according to claim 6, wherein the connector device has a plurality of fluid ducts, and the percutaneous fluid access device has a corresponding plurality of fluid channels. ### Claim 8 (depends on 6) An apparatus according to claim 6, wherein the connector device comprises at least one hollow needle. ### Claim 9 (depends on 8) An apparatus according to claim 8, wherein the at least one hollow needle is configured to be inserted through the at least one seal to establish fluid communication between the hollow needle and the at least one fluid channel. ### Claim 10 (depends on 1) An apparatus according to claim 1, further comprising a cover adapted to fit over the base portion when the housing is removed from the base portion. ### Claim 11 (depends on 1) An apparatus according to claim 1, further comprising a tool adapted to engage the base portion and the housing during removal and/or assembly of the housing to/from the base portion. ### Claim 12 (depends on 1) An apparatus according to claim 1, wherein at least one second seal is provided between the housing and the base portion. ### Claim 13 (depends on 1) An apparatus according to claim 1, wherein the base portion has at least one third seal which seals the at least one port upon removal of the housing from the base portion. ### Claim 14 A method of using a percutaneous fluid access apparatus comprising a percutaneous fluid access device including a base portion including a subcutaneous portion and at least one port for connection to one or more fluid conduits within a body of a patient, and a housing comprising at least one fluid channel and at least one seal for sealing the at least one fluid channel, wherein the housing is removably attachable to the base portion, and the at least one fluid channel is in fluid communication with the at least one port when the housing is attached to the base portion, the method including the step of: removing the housing from the percutaneous fluid access device. ### Claim 15 (depends on 14) A method according to claim 14, further comprising the step of disposal of the housing after removal of the housing from the percutaneous fluid access device, and/or attachment of a replacement housing to the percutaneous fluid access device.