Bolus pump apparatus

• US 5,807,312 A
• Filed: 05/23/1997
• Issued: 09/15/1998
• Est. Priority Date: 05/23/1997
• Status: Expired due to Fees

• Current Assignee: Mark R. Dzwonkiewicz
• Original Assignee: Mark R. Dzwonkiewicz
• Inventors: Dzwonkiewicz, Mark R.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US08/862,569
• Time in Patent Office: 480 Days
• Field of Search: 604/30, 604/32, 604/33, 604/34, 604/35, 604/131, 604/151, 604/246, 604/247, 604/248
• US Class Current: 604/30
• CPC Class Codes: A61M 2005/1405 Patient controlled analgesia [PCA]
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 39/24 Check- or non-return valves
• CPC Class Codes: A61M 5/1424 Manually operated pumps

Abstract

A bolus pump apparatus is provided for connecting an IV bag to an infusion set. The bolus pump apparatus includes a pump connector assembly and a syringe pump. The pump connector assembly includes one or more valves adapted to provide selective fluid communication between the IV bag, the syringe pump, and the infusion set. The syringe draws a bolus of fluid from the IV bag through the pump connector assembly while the pump connector assembly prevents fluid within the infusion set from being drawn into the syringe. The syringe pumps a bolus of fluid from the syringe through the pump connector assembly to the infusion set, while the pump connector assembly prevents fluid within the syringe from being pumped into the IV bag.

Claims

1. A bolus pump apparatus adapted to connect a pump mechanism in fluid communication with a fluid container and an infusion set having a fluid dispensing tube with a spike connector, said bolus pump apparatus comprising:

a spike connector member for connecting said bolus pump apparatus to the fluid container, said spike connector member including a first fluid passage having a first end and a second end, said first end of said first fluid passage adapted to provide fluid communication with the fluid container;

a first valve connected to said spike connector member, said first valve including a second fluid passage having a first end and a second end, said first end of said second fluid passage providing fluid communication with said second end of said first fluid passage, said first valve adapted to allow fluid flow through said second fluid passage in a first direction from said first end of said second fluid passage to said second end of said fluid passage and adapted to prevent fluid flow through said second fluid passage in a second direction from said second end of said second fluid passage to said first end of said second fluid passage;

a first fluid conduit having a first end and a second end, said first end of said first fluid conduit connected to said first valve, said first fluid conduit including a third fluid passage having a first end and a second end, said first end of said third fluid passage providing fluid communication with said second fluid passage of said first valve, said first fluid conduit including a port in fluid communication with said third fluid passage between said first end and said second end of said third fluid passage, said port adapted to provide fluid communication between said third fluid passage and the pump mechanism;

a second valve connected to said second end of said first fluid conduit, said second valve including a fourth fluid passage having a first end and a second end, said first end of said fourth fluid passage providing fluid communication with said third fluid passage of said first fluid conduit, said second valve adapted to allow fluid flow through said fourth fluid passage in a first direction from said first end of said fourth fluid passage to said second end of said fourth fluid passage and adapted to prevent fluid flow through said fourth fluid passage in a second direction from said second end of said fourth fluid passage to said first end of said fourth fluid passage; and

a spike-receiving connector member connected to said second valve in fluid communication with said second end of said fourth fluid passage of said second valve, said spike-receiving connector member adapted to receive the spike connector of the infusion set to provide fluid communication between said fourth fluid passage and the fluid dispensing tube;

whereby said bolus pump apparatus allows the pump mechanism to withdraw fluid from the fluid container through said first valve while said second valve prevents fluid within the fluid dispensing tube from being drawn into said third fluid passage, and allows the pump mechanism to pump fluid from said third fluid passage through said second valve into the fluid dispensing tube while said first valve prevents fluid in said third fluid passage from flowing into the fluid container.

2. The bolus pump apparatus of claim 1 including a third valve having a first end and a second end and a fifth fluid passage extending therethrough, said first end of said third valve being attached to said first fluid conduit such that said fifth fluid passage is in fluid communication with said port of said first fluid conduit, said third valve adapted to selectively open and close said fifth fluid passage, said second end of said third valve adapted to be connected to the pump mechanism.

3. The bolus pump apparatus of claim 1 including a second fluid conduit extending between said second valve and said spike-receiving connector member providing fluid communication between said fourth fluid passage of said second valve and said spike-receiving connector member.

4. The bolus pump apparatus of claim 3 including means for selectively controlling the flow rate of fluid through said second fluid conduit.

5. The bolus pump apparatus of claim 3 including a roller clamp for selectively controlling the flow rate of fluid through said second fluid conduit.

6. The bolus pump apparatus of claim 1 wherein said first and second valves each respectively comprise a one-way valve.

7. The bolus pump apparatus of claim 1 including a pump mechanism connected to said first fluid conduit in fluid communication with said port of said first fluid conduit.

8. The bolus pump apparatus of claim 7 wherein said pump mechanism comprises a syringe.

9. A bolus pump apparatus adapted to connect a pump mechanism in fluid communication with a fluid container and an infusion set including a fluid dispensing tube and a spike connector, said bolus pump apparatus comprising:

a spike connector member including a first fluid passage, said spike connector member adapted to be connected to the fluid container such that said first fluid passage is in fluid communication with the fluid container;

a first conduit having a first end and a second end and a second fluid passage extending from said first end of said first conduit to said second end of said first conduit, said first end of said first conduit being connected to said spike connector member such that said first fluid passage is in fluid communication with said second fluid passage;

a valve having a housing and a rotor that is selectively rotatable between a first position, a second position and a third position, said rotor including a third fluid passage, said second end of said first conduit being attached to said housing such that said second fluid passage is in selective fluid communication with said third fluid passage of said rotor;

a second conduit having a first end and second end and a fourth fluid passage extending from said first end of said second conduit to said second end of said second conduit, said first end of said second conduit being attached to said housing such that said fourth fluid passage is in selective fluid communication with said third fluid passage of said rotor;

a third conduit having a first end and a second end and a fifth fluid passage extending from said first end of said third conduit to said second end of said third conduit, said first end of said third fluid conduit being connected to said housing such that said fifth fluid passage is in selective fluid communication with said third fluid passage of said rotor, said second end of said third conduit adapted to be connected to the pump mechanism to provide fluid communication between said fifth fluid passage and the pump mechanism;

a spike-receiving connector member connected to said second end of said second conduit in fluid communication with said fourth fluid passage, said spike-receiving connector member adapted to receive the spike connector of the infusion set to provide fluid communication between said fourth fluid passage and the fluid dispensing tube of the infusion set;

whereby when said rotor is selectively rotated to said first position said third fluid passage provides fluid communication between said second fluid passage and said fourth fluid passage such that said bolus pump apparatus allows fluid to flow from the fluid container into the infusion set, when said rotor is selectively rotated to said second position said third fluid passage provides fluid communication between said second fluid passage and said fifth fluid passage such that said bolus pump apparatus allows the pump mechanism to draw fluid from the fluid container while preventing fluid within the fluid dispensing tube of the infusion set from being drawn into the pump mechanism, and when said rotor is selectively rotated to said third position said third fluid passage provides fluid communication between said fifth fluid passage and said fourth fluid passage such that said bolus pump apparatus allows the pump mechanism to pump fluid into the fluid dispensing tube of the infusion set while preventing fluid from being pumped into the fluid container.

10. The bolus pump apparatus of claim 9 wherein said rotor of said valve includes a first port, a second port and a third port, said third fluid passage providing fluid communication between said first, second and third ports.

11. The bolus pump apparatus of claim 9 including a fourth fluid conduit extending between said second end of said second fluid conduit and said spike-receiving connector member providing fluid communication between said fourth fluid passage and said spike-receiving connector member.

12. The bolus pump apparatus of claim 11 including means for selectively controlling the flow rate of fluid through said fourth fluid conduit.

13. The bolus pump apparatus of claim 11 including a clamp for selectively controlling the flow rate of fluid through said fourth fluid conduit.

14. The bolus pump apparatus of claim 9 including a pump mechanism connected to said third fluid conduit in fluid communication with said fifth fluid passage.

15. The bolus pump apparatus of claim 14 wherein said pump mechanism comprises a syringe.

16. The bolus pump apparatus of claim 9 including a cap member attached to said rotor.

17. The bolus pump apparatus of claim 16 wherein said valve includes an actuator member attached to said rotor for providing selective rotational movement of said rotor and said cap member includes a recess adapted to receive said actuator member, said actuator member being inserted into said recess of said cap member such that selective rotation of said cap member provides rotation of said actuator member and said rotor.

18. The bolus pump apparatus of claim 16 wherein said cap member includes first indicia visually indicating when said rotor is located in said first rotational position, second indicia visually indicating when said rotor is located in said second position, and third indicia visually indicating when said rotor is located in said third position.

19. The bolus pump apparatus of claim 18 wherein said first indicia comprises a first word indicative of said rotor being located in said first position, said second indicia comprises a second word indicative of said rotor being located in said second position, and said third indicia comprises a third word indicative of said rotor being located in said third position.

20. The bolus pump apparatus of claim 18 wherein said first indicia is indicative of the function provided by said bolus pump apparatus when said rotor is located in said first position, said second indicia is indicative of the function provided by said bolus pump apparatus when said rotor is located in said second position, and said third indicia is indicative of the function provided by said bolus pump apparatus when said rotor is located in said third position.