# US 5,704,912 A · Syringe assembly mounting system for inflation control system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,704,912 A - Document ID: US5704912A - Status: Granted - Kind: A - Application number: 08/406,040 - Filed: 1995-03-17 - Granted: 1998-01-06 - Earliest claimed: 1995-03-17 - Assignees: Advanced Cardiovascular Systems, Inc. - Inventors: Ronald L. Lawrence; Jay Sarno - Web page: https://patentgrep.com/patent/US5704912A ## CPC - A61M 25/10182: {Injector syringes} - A61M 25/10188: {Inflation or deflation data displays} - 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 syringe assembly for an inflation control system having a mounting head at one end is pivotally mounted in a mounting bracket for engagement with a drive arm. The mounting bracket is stationary in relation to the drive arm of the system. The mounting head includes a lateral projection on each of its sides having a shape and size selected for pivotal engagement with notches formed in side walls of the mounting bracket. The handle of the syringe plunger includes a driver retainer for capturing the drive arm in the longitudinal directions so that the longitudinal plunger movement is controlled by the drive arm. Neither the retainer nor the drive arm limits movement in the normal direction so that the syringe can be easily separated from the drive arm by an operator. A clamp secures the syringe barrel in the normal direction. Overcoming the force of the clamp is facilitated by the mechanical advantage provided by the pivotal mounting arrangement of the syringe assembly. ## Claims ### Claim 1 A syringe assembly for engagement with a fixed mounting bracket and with a plunger driver device that is movable in relation to the mounting bracket, the syringe assembly comprising: a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end, with a syringe plunger longitudinal axis passing through said first end and said second end; a mounting head fixedly disposed at the first end of the syringe barrel, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket, said pivotal engagement allowing the syringe assembly to pivot about a pivot axis which passes through the mounting bracket and which is non-parallel with the syringe plunger longitudinal axis; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith. ### Claim 2 (depends on 1) The syringe assembly of claim 1 wherein the mounting head has a first lateral side, a second lateral side opposite the first lateral side, and a rounded lateral projection on each lateral side for pivotally engaging the mounting bracket. ### Claim 3 (depends on 1) The syringe assembly of claim 1 further comprising: a syringe insertion device disposed on the syringe barrel for indicating the presence of the syringe assembly. ### Claim 4 (depends on 1) The syringe assembly of claim 1 further comprising: a syringe insertion device disposed in the mounting head for indicating the presence of the syringe assembly. ### Claim 5 A syringe assembly for engagement with a fixed mounting bracket and with a plunger driver device that is movable in relation to the mounting bracket, the syringe assembly comprising: a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end; a mounting head fixedly disposed at the first end of the syringe barrel, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket, wherein the mounting head includes a rounded lateral projection for pivotally engaging the mounting bracket; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith. ### Claim 6 (depends on 5) The syringe assembly of claim 5 wherein the mounting head includes a second rounded lateral projection for pivotally engaging the mounting bracket, the second rounded lateral projection disposed opposite the first lateral projection. ### Claim 7 A syringe assembly for engagement with a fixed mounting bracket and with a plunger driver device that is movable in relation to the mounting bracket, the syringe assembly comprising: a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end; a mounting head fixedly disposed at the first end of the syringe barrel, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith, wherein the drive retainer includes first and second retainer prongs adapted to receive the driver device between them and snap around the driver device so that the plunger moves with the driver device. ### Claim 8 (depends on 7) The syringe assembly of claim 7 wherein the first and second prongs each includes a barb for engaging a rear portion of the driver device. ### Claim 9 A syringe assembly for engagement with a fixed mounting bracket and with a plunger driver device that is movable in relation to the mounting bracket, the syringe assembly comprising: a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end, wherein the plunger comprises a handle disposed at the second end, the handle forming a "T" shape with the plunger; a mounting head fixedly disposed at the first end of the syringe barrel, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith. ### Claim 10 (depends on 9) The syringe assembly of claim 9 wherein: the handle comprises two extensions forming the shape of the T; and the driver retainer is located between the two extensions and on the longitudinal axis of the plunger. ### Claim 11 (depends on 9) The syringe assembly of claim 9 wherein: the handle comprises two extensions forming the shape of the T; and each of the extensions is rounded. ### Claim 12 A mounting system for mounting a syringe assembly with a movable driver device, the system comprising: a mounting bracket located in a stationary position in relation to the moveable driver device; a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end, with a syringe plunger longitudinal axis passing through said first end and said second end; a mounting head fixedly disposed at the first end of the syringe barrel and received in the mounting bracket, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket, wherein the syringe assembly can pivot about a pivot axis which passes through the mounting bracket and which is non-parallel with the syringe plunger longitudinal axis; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith. ### Claim 13 (depends on 12) The mounting system of claim 12 wherein: the bracket includes two notches disposed on opposite sides of the bracket; the mounting head has a first lateral side, a second lateral side opposite the first lateral side, and a rounded lateral projection on each lateral side for pivotally engaging respective notches of the mounting bracket. ### Claim 14 (depends on 12) The mounting system of claim 12 wherein the syringe assembly further comprises a syringe insertion device disposed on the syringe barrel for indicating the presence of the syringe assembly. ### Claim 15 (depends on 14) The mounting system of claim 14 wherein the syringe insertion device is disposed at the distal end of the syringe barrel. ### Claim 16 (depends on 14) The mounting system of claim 14, further comprising: a syringe insertion detector that detects the syringe insertion device upon the proper insertion of the syringe assembly into the mounting bracket, said syringe insertion detector generating a signal indicating proper insertion of the syringe assembly into the mounting bracket. ### Claim 17 (depends on 12) The mounting system of claim 12 further comprising: a detector connected to the mounting bracket that provides a signal indicating proper insertion of the syringe assembly into the mounting bracket. ### Claim 18 (depends on 17) The mounting system of claim 17 wherein the detector comprises an electrical pin that completes an electrical circuit upon proper insertion of the syringe assembly into the mounting bracket. ### Claim 19 A mounting system for mounting a syringe assembly with a movable driver device, the system comprising: a mounting bracket located in a stationary position in relation to the moveable driver device, the bracket comprising a notch; a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end; a mounting head fixedly disposed at the first end of the syringe barrel and received in the mounting bracket, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket, the mounting head including a rounded lateral projection for pivotally engaging the notch of the mounting bracket; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith. ### Claim 20 (depends on 19) The mounting system of claim 19 wherein: the bracket comprises a second notch disposed opposite the bracket from the first notch; the mounting head includes a second rounded lateral projection for pivotally engaging the second notch of the mounting bracket, the second rounded lateral projection disposed opposite the first lateral projection on the mounting head. ### Claim 21 A mounting system for mounting a syringe assembly with a movable driver device, the system comprising: a mounting bracket located in a stationary position in relation to the moveable driver device; a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end; a mounting head fixedly disposed at the first end of the syringe barrel and received in the mounting bracket, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith, the driver retainer including first and second retainer prongs adapted to receive the driver device between them and snap around the driver device so that the plunger moves with the driver device. ### Claim 22 (depends on 21) The mounting system of claim 21 wherein the first and second prongs each includes a barb for engaging a rear portion of the driver device. ### Claim 23 A mounting system for mounting a syringe assembly with a movable driver device, the system comprising: a mounting bracket located in a stationary position in relation to the moveable driver device; a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end, wherein the plunger comprises a handle disposed at the second end, the handle forming a "T" shape with the plunger; a mounting head fixedly disposed at the first end of the syringe barrel and received in the mounting bracket, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket; and a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith. ### Claim 24 (depends on 23) The mounting system of claim 23 wherein: the handle comprises two extensions forming the shape of the T; and the driver retainer is located between the two extensions and on the longitudinal axis of the plunger. ### Claim 25 (depends on 23) The mounting system of claim 23 wherein: the handle comprises two extensions forming the shape of the T; and each of the extensions is rounded. ### Claim 26 A mounting system for mounting a syringe assembly with a movable driver device, the system comprising: a mounting bracket located in a stationary position in relation to the moveable driver device; a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end; a mounting head fixedly disposed at the first end of the syringe barrel and received in the mounting bracket, the mounting head having a shape and a size selected for pivotal engagement with the mounting bracket; a driver retainer disposed at the second end of the syringe plunger adapted to engage the plunger driver device and move therewith; a plurality of electrical contacts in the mounting bracket; a plurality of electrical contacts in the syringe assembly positioned to form connections with the mounting bracket electrical contacts when the syringe assembly is properly inserted into the mounting bracket; and an electrical circuit that monitors current flow through the connections formed by the syringe assembly electrical contacts and mounting bracket electrical contacts, said electrical circuit providing a signal indicating proper insertion of the syringe assembly into the mounting bracket. ### Claim 27 (depends on 26) The mounting system of claim 26 wherein the syringe assembly has a longitudinal center line, and the syringe assembly electrical contacts are located off center from said longitudinal center line. ### Claim 28 A syringe assembly for engagement with a fixed mounting bracket and with a plunger driver device that is movable in relation to the mounting bracket, the syringe assembly comprising: a syringe barrel having a volume and having a first end and a second end; a syringe plunger having a first end movably disposed in the syringe barrel for altering the volume in the syringe barrel and having a second end, with a longitudinal axis passing through said first end and said second end; a mounting head fixedly disposed on the syringe barrel, the mounting head having a shape and a size selected for engagement with the mounting bracket; and a driver retainer disposed at the second end of the syringe plunger adapted to longitudinally receive and capture the plunger driver device and longitudinally move therewith. ### Claim 29 (depends on 28) The syringe assembly of claim 28 wherein the driver retainer longitudinally secures the plunger driver device to the syringe plunger while permitting movement of the syringe plunger away from the plunger driver device in a normal direction. ### Claim 30 (depends on 28) The syringe assembly of claim 28 wherein the driver retainer includes first and second retainer prongs adapted to receive the driver device between them and snap around the driver device so that the plunger moves with the driver device. ### Claim 31 (depends on 30) The syringe assembly of claim 30 wherein the first and second prongs each includes a barb for engaging a rear portion of the driver device. ### Claim 32 (depends on 28) The syringe assembly of claim 28 wherein: the second end of the syringe plunger comprises a handle having two extensions forming the shape of a T; and the driver retainer is located between the two extensions and on the longitudinal axis of the plunger.