# US 2019/0167875 A1 · Catheter device having a coupling device for a drive device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167875 A1 - Document ID: US20190167875A1 - Status: Published application - Kind: A1 - Application number: 16/204,123 - Filed: 2018-11-29 - Published: 2019-06-06 - Earliest claimed: 2009-08-06 - Assignees: Ecp Entwicklungsgesellschaft Mbh - Applicants: Ecp Entwicklungsgesellschaft Mbh - Inventors: Cornelia Simon; Julia Honselmann; Jens Baumgaertel; Reiner Liebing - Web page: https://patentgrep.com/patent/US20190167875A1 ## CPC - A61M 60/414: transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter - A61M 60/13: by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system - A61M 60/216: including a rotating member acting on the blood, e.g. impeller - A61M 60/829: having a purge fluid supply - A61B 17/320758: {with a rotating cutting instrument, e.g. motor driven (A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002)} - A61B 2017/00889: {antimicrobial, disinfectant} - A61M 25/0105: {Steering means as part of the catheter or advancing means; Markers for positioning (systems for detection of markers A61B)} - A61M 60/148: in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices - A61M 60/419: the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets - 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)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The invention relates to a catheter device, having a hollow catheter in the catheter cavity of which a moveable shaft is guided, having a proximal coupling device, for detachable coupling of a drive device, the coupling device having a coupling cavity which is open towards the drive device and into which the shaft or an extension of the shaft protrudes with a connection element for mechanical coupling of a motor shaft, the coupling cavity having a germ barrier for reducing the pathogenicity of pathogenic substances or microorganisms. ## Claims ### Claim at position 1 1-17. (canceled) ### Claim 18 A catheter device comprising: a hollow catheter defining a catheter cavity; a moveable shaft, rotatably disposed within the hollow catheter and at least partially disposed within the catheter cavity, the moveable shaft comprising a proximal end portion; a coupling device configured to releasably couple a drive device to the hollow catheter, the coupling device comprising: a coupling cavity comprising a chamber housing a germicidal gel, wherein at least a portion of the moveable shaft extends through the chamber; a connection disposed within the coupling cavity at the proximal end portion of the moveable shaft, the connection configured to connect the moveable shaft to a motor shaft; wherein the coupling cavity and the hollow catheter are arranged such that fluid can flow between the coupling cavity and the hollow catheter. ### Claim 19 (depends on 18) The catheter device according to claim 18, wherein the chamber comprises a shaft seal surrounding a portion of the moveable shaft distal to the connection and wherein the coupling cavity is at least partially sealed by the shaft seal relative to the catheter cavity, the shaft seal delimiting a distal end of the chamber. ### Claim 20 (depends on 18) The catheter device of claim 18, wherein the chamber comprises a bearing for the moveable shaft, the bearing delimiting a proximal end of the chamber. ### Claim 21 (depends on 18) The catheter device of claim 18, wherein the coupling cavity is open towards a proximal direction. ### Claim 22 (depends on 18) The catheter device of claim 18, wherein the chamber comprises a filling opening, the filling opening configured to introduce the germicidal gel into the chamber. ### Claim 23 (depends on 22) The catheter device of claim 22, wherein the filling opening is configured to introduce the germicidal gel into the chamber when the drive device is coupled to the hollow catheter. ### Claim 24 (depends on 18) The catheter device of claim 18, further comprising a coupling sleeve at least partially surrounding the coupling cavity, wherein the coupling sleeve is non-detachably connected in a hermetically sealed one-piece manner to the hollow catheter. ### Claim 25 (depends on 24) The catheter device according to claim 24, further comprising a cover sleeve, wherein the cover sleeve is connected or glued in one piece to a drive housing of the drive device, and wherein the cover sleeve is configured to be pushed onto the coupling sleeve. ### Claim 26 (depends on 25) The catheter device according to claim 25, further comprising an elastomer seal between the coupling sleeve and the cover sleeve. ### Claim 27 (depends on 25) The catheter device according to claim 25, further comprising a locking connection device for producing a detachable connection between the coupling sleeve and the drive housing. ### Claim 28 (depends on 18) The catheter device according to claim 18, wherein the coupling cavity further comprises an additional germ barrier on the distal side of a shaft seal delimiting a distal end of the chamber. ### Claim 29 (depends on 28) The catheter device of claim 28, wherein the additional germ barrier is a shaft rinsing device. ### Claim 30 (depends on 18) The catheter device according to claim 18, further comprising a micropump disposed at a distal end of the catheter device and connected to the moveable shaft. ### Claim 31 (depends on 18) The catheter device of claim 18, wherein the coupling cavity further comprises a radiation chamber and a radiation window hermetically sealing the radiation chamber, the radiation window being permeable to ultraviolet radiation and impermeable to liquid. ### Claim 32 (depends on 31) The catheter device of claim 31, further comprising a radiation source positioned outside the coupling cavity and adjacent to the radiation window. ### Claim 33 (depends on 31) The catheter device of claim 31, wherein the radiation source includes an ultraviolet (UV) diode. ### Claim 34 (depends on 31) The catheter device of claim 31, wherein the radiation chamber is configured to reduce the pathogenicity of pathogenic substances or microorganisms. ### Claim 35 (depends on 18) The catheter device of claim 18, wherein the moveable shaft comprises a plurality of twisted strands to form a spindle-like surface structure of the moveable shaft. ### Claim 36 (depends on 18) The catheter device of claim 18, wherein the moveable shaft is configured to operate at least 10,000 rpm.