System and method for bandoliering syringes

• US 7,007,443 B2
• Filed: 06/22/2004
• Issued: 03/07/2006
• Est. Priority Date: 06/27/2003
• Status: Expired due to Fees

• Current Assignee: Baxter Corporation Englewood (Baxter International Inc.)
• Original Assignee: Forhealth Technologies Incorporated (Baxter International Inc.)
• Inventors: Tribble, Dennis, Liedtke, Klaus
• Primary Examiner(s): PARADISO, JOHN ROGER
• Application Number:
  US10/874,701
• Publication Number:
  US 20050039417A1
• Time in Patent Office: 623 Days
• Field of Search: 533/99, 533/98, 534/19, 534/43, 534/44, 534/46, 531/372, 534/50, 535/50, 535/51, 53/52, 535/00, 535/05
• US Class Current: 53/399
• CPC Class Codes: B65B 15/04 Attaching a series of articles, e.g. small electrical components, to a continuous web ammunition filling F42B

Abstract

The present invention provides an automated system and method of banding (bandoliering) a plurality of syringes. The system includes a feed device for receiving the plurality of syringe barrels and positioning the plurality of syringes according to a predetermined orientation and an indexed device for transferring the plurality of syringes in the predetermined orientation to a transport device that includes individual pockets for receiving and holding the syringes in a spaced relationship as the syringes are advanced due to movement of the transport device. The system also includes a web application device disposed along the transport device for applying a first web material to a first face of a predetermined number of syringes and a second web material to a second face of the syringes and being configured to press the first and second materials into contact with the first and second faces of the syringes, respectively, and into contact with each other in areas between the syringes so as to form a banded syringe structure.

Claims

1. A method of banding a plurality of syringes comprising the steps of:

introducing the plurality of syringes into a feeder;

aligning the plurality of syringes in a predetermined arrangement and delivering the aligned syringes to a rotary device;

advancing and controlling the rotary device so that syringes held therein are successively delivered to a transport device that holds and maintains the syringes in a spaced relationship,

placing a cap, in an automated manner, on an empty syringe barrel as it is advanced and carried by the transport device;

advancing the transport device such that the syringes are delivered to a web application device;

activating the web application device to cause a first web material to be applied to a first face of the syringes and a second web material to be applied to a second face of the syringes, the first and second web materials being simultaneously applied at substantially the same point, wherein the first and second web materials are joined together in areas between the syringes so as to form a banded syringe structure; and

advancing the banded syringe structure from the web application device.

2. The method of claim 1, wherein advancing the indexed device includes the step of advancing the indexed device one interval, while simultaneously advancing the transport device one unit such that the syringe departing the indexed device is transferred into an empty pocket formed along the transport device for retaining and holding the one syringe.

3. The method of claim 1, wherein the web application device comprises activating the web application device comprises at least two cam press units that are disposed on opposite sides of the transport device such that the two cam press units simultaneously apply the first web material and the second web material and the step of activating the web application device includes the steps of:

moving the at least two cam press units in a synchronized reciprocating cyclical manner and in a direction that is substantially perpendicular to a direction of travel of the syringes carried by the transport device, whereby the continuous movement of the syringes and the reciprocating action of the cam press units results in the web materials being pinched together at locations between the syringes and rolled and adhered along the faces of the syringe to produce the banded structure.

4. The method of claim 1, wherein the step of placing the cap includes the steps of:

introducing a plurality of syringe caps into a feeder;

aligning the plurality of syringe caps in a predetermined arrangement and delivering the aligned syringe caps to a rotary device;

advancing and controlling the rotary device so that syringe caps held therein are successively delivered to the transport device that holds and maintains the syringes in a spaced relationship such that the caps are successively frictionally fitted onto empty syringe barrel tips.

5. The method of claim 1, further including the steps of:

counting the number of syringes in the banded structure with an automated counter at a station downstream of the web application station; and

as soon as the number of counted syringes reaches a threshold value, a cutting device cuts the joined web materials between adjacent syringes.

6. The method of claim 1, further including the step of:

providing an optical sensor at location downstream of the web application station, the optical sensor being operatively coupled to a controller that includes optical character recognition software;

capturing an image of a target syringe that is part of the banded structure;

comparing the captured image with a stored image of a pristine syringe using the optical character recognition software; and

if a defect is detected based on the comparison of the two images, then the handling of the banded syringes is influenced.

7. The method of claim 6, wherein the defect is the presence of an improperly seated cap on the syringe barrel and the method further includes the step of:

cutting the joined web materials at two locations on opposite sides of the syringe that includes the defect.

8. A method of providing a banded syringe product comprising the steps of:

banding a plurality of syringes by aligning the plurality of syringes in a predetermined arrangement and simultaneously applying a first web material to a first face of the syringes and a second material to a second face of the syringes and pressing the first and second webs into contact with the syringes and into contact with each other in areas between the syringes so as to form a plurality of banded syringes; and

providing a control feature in an area between the syringes, the control feature being different from the surrounding web material.

9. The method of claim 8, wherein the control feature is an aperture formed in the web material.

10. The method of claim 8, wherein there is a correlation between a location of the control feature in the prescribed interval and a type of syringe that is bound to the web material.

11. The method of claim 8, wherein the control feature is an optical feature formed on a surface of the web material.

12. The method of claim 8, further including the step of:

providing a detection system including a detector positioned to detect the control feature on the bandolier and perform a prescribed operation in response to the detection or non-detection of the control feature.

13. A system for banding a plurality of syringe barrels, the system including:

a first feed device for receiving the plurality of syringe barrels and positioning the plurality of syringes according to a predetermined orientation;

a first transfer device for transferring the plurality of syringes in the predetermined orientation to a transport device that receives and holds the syringes in a spaced relationship and moves them from one location to another location;

a web application device disposed along the transport device for simultaneously applying a first web material to a first face of a predetermined number of syringes and a second web material to a second face of the syringes at the same location such that the first and second web materials adhere to the first and second faces of the syringes, respectively, and with each other in areas between the syringes so as to form a banded syringe structure; and

a mechanism that detects whether all the syringes are in the proper predetermined orientation prior to the syringes being transferred to the web application device.

14. The system of claim 13, wherein the first feed device includes a centrifugal bowl feeder that receives the plurality of syringes in a random manner and includes tooling that positions the plurality of syringes in the predetermined orientation.

15. The system of claim 13, wherein the first feed device includes a feeder rail that includes a drive feature for advancing the syringes from the exit port to the first transfer device.

16. The system of claim 15, wherein the drive feature comprises a straight line drive unit that produces linear vibratory motion that results in the syringes being advanced sequentially and horizontally along the feeder rail to the first transfer device.

17. The system of claim 13, wherein the mechanism detects whether markings formed on the syringe are facing in the desired direction and if they are not, the mechanism takes remedial action to reposition the syringe so that the markings face in the desired direction.

18. The system of claim 17, wherein the mechanism comprises a sensor device and syringe repositioning device that is configured to scan an outer surface of the syringe and determine whether the markings are facing in the desired direction and if they are not, the mechanism includes an active device that repositions the syringe so that the markings face in the desired directions identical to the surrounding syringes.

19. The system of claim 18, wherein the markings are gradations formed on the outer surface and the active device comprises a mechanism that discharges a prescribed amount of fluid toward the syringe to cause movement of the syringe from an out-of-phase position to an in-phase position where the markings face in the desired direction.

20. The system of claim 19, wherein the fluid is a stream of air and the out-of-phase position is 180 degrees offset from the in-phase position.

21. The system of claim 13, wherein the first transfer device includes a first rotary device that has a plurality of individual receiving sections that receive the syringes in a manner in which each syringe is separated from the other and held within its own receiving section as the first rotary device rotates to deliver the syringes from the feed device to the first transport device.

22. The system of claim 21, wherein the receiving sections comprise a number of grooves formed radially around an outer edge of the first rotary device, wherein a longitudinal axis that extends the length of each groove lies substantially parallel to a longitudinal axis that extends the length of the syringe as it is fed from the first feed device to the first rotary dial.

23. The system of claim 13, wherein the transport device comprises a conveyor belt assembly that receives the syringes from the transfer device and delivers them to another location, the belt assembly including a first belt and a second belt spaced therefrom with a space being formed therebetween, the first and second belts having aligned features that receive and hold the syringes in a spaced relationship with a predetermined distance between adjacent syringes.

24. The system of claim 23, wherein the aligned features comprise a plurality of fingers that are formed as part of the first belt and the second belt with each pair of fingers on the first belt being aligned with an opposite pair of fingers formed on the second belt, one syringe being nested within the two pairs of opposite fingers with a barrel of the syringe extending across the space.

25. The system of claim 24, wherein the first rotary device and the transport device are indexed devices that communicate with a controller such that as the rotary device advances the syringes held therein are successively brought into alignment with an empty pocket defined by the aligned features.

26. The system of claim 13, wherein the web application device comprises at least two cam press units that are disposed on opposite sides of the transport device such that the two cam press units simultaneously either press the first web material against the first face of the syringes and presses the second web material against the second face of the syringes at the same location or press the web materials into contact with each other in areas between the syringes so as to form the banded syringe structure.

27. The system of claim 26, wherein the at least two cam press units each has a first actuator with an associated reciprocating shaft as well as a press head being disposed at a distal end of the shaft, the press head including a rotatable web roller formed on an underside thereof facing the respective web material for contact therewith.

28. The system of claim 27, wherein the at least two cam press units are programmed to have a synchronized action in that in an initial first position, the web rollers are in fully extended positions at their closest point with respect to another with the first and second web materials being disposed therebetween such that the two web rollers pinch the web materials together at this point between adjacent syringes and wherein after the initial position, the cam press units follow a cyclical motion in which the web rollers are subsequently moved to fully retracted positions before then being moved back to the fully extended position, while at the same time that the transport device advances the non-banded syringes with respect to the cam press units, thereby causing the web rollers to effectively pinch the web materials together at locations between adjacent syringes and to roll and apply the web materials across the respective faces of the syringe to produce the banded syringe structure.

29. The system of claim 27, wherein the reciprocal motion of the cam press units is substantially perpendicular to the longitudinal driving motion of the transport device.

30. The system of claim 27, wherein the actuator includes a stepper motor and the reciprocating shaft is part of a pneumatic cylinder that is operatively coupled to the press head and the stepper motor.

31. The system of claim 13, wherein the web application device comprises at least two cam press units that are disposed on opposite sides of the transport device such that the two cam press units simultaneously press the first web material against the first face of the syringes and presses the second web material against the second face of the syringes at the same location as well as into contact with each other in areas between the syringes so as to form the banded syringe structure, the at least two cam press units moving in a synchronized reciprocating cyclical manner and in a direction that is substantially perpendicular to a direction of travel of the syringes carried by the transport device, whereby the continuous movement of the syringes and the reciprocating action of the cam press units results in the web materials being pinched together at locations between the syringes and rolled and adhered along the faces of the syringe to produce the banded structure.

32. The system of claim 13, wherein the first web source comprises a single side adhesive tape and the second web source comprises a single side adhesive tape.

33. The system of claim 13, further comprising a pair of idler roll assemblies disposed between sources of the first and second web materials and upstream of the web application device for applying and maintaining the first and second web materials, respectively, under tension.

34. The system of claim 13, further including:

a syringe counter and cutter station disposed along the transport device downstream of the web application station including an automated counter device that counts and stores in memory the number of banded syringes that pass thereby over a prescribed period.

35. The system of claim 34, wherein the counter device comprises a photo eye that is capable of detecting each syringe that passes through a scanning sector.

36. The system of claim 34, wherein the counter device and the cutter are operatively connected to a programmable controller so that once the counter device detects that the number of detected syringes equals an inputted number of syringes, the counter device sends a signal to the controller which then sends a signal to the cutter instructing the cutter to cut through the banded web materials between adjacent syringes resulting in the inputted number of banded syringes being separated from other banded syringe structures.

37. A system for banding a plurality of syringe barrels, the system including:

a first feed device for receiving the plurality of syringe barrels and positioning the plurality of syringes according to a predetermined orientation;

a first transfer device for transferring the plurality of syringes in the predetermined orientation to a transport device that receives and holds the syringes in a spaced relationship and moves them from one location to another location;

a web application device disposed along the transport device for simultaneously applying a first web material to a first face of a predetermined number of syringes and a second web material to a second face of the syringes at the same location such that the first and second web materials adhere to the first and second faces of the syringes, respectively, and with each other in areas between the syringes so as to form a banded syringe structure; and

a vision safety detection station disposed along the transport device downstream of the web application station for determining whether any of the banded syringes are damaged or otherwise unfit for loading into packaging at a station downstream therefrom, wherein if the vision safety detection station detects that the syringe is damaged or unfit, then the handling of the syringes is influenced.

38. The system of claim 37, wherein the vision safety detection station includes a sensor that is operatively coupled to a controller that includes optical character recognition software, the sensor capturing an image of a target syringe that is part of the banded syringe structure and the controller serving to compare the captured syringe with a stored benchmark syringe image using the character recognition software and if any differences therebetween are detected, the controller takes remedial action that influences the handling of the banded syringe structure.

39. The system of claim 38, wherein if the captured image shows a cap that is improperly seated to the syringe, then the controller instructs the system to remove this syringe from the banded syringe structure.

40. A system for banding a plurality of syringe barrels, the system including:

a first feed device for receiving the plurality of syringe barrels and positioning the plurality of syringes according to a predetermined orientation;

a first transfer device for transferring the plurality of syringes in the predetermined orientation to a transport device that receives and holds the syringes in a spaced relationship and moves them from one location to another location;

a web application device disposed along the transport device for simultaneously applying a first web material to a first face of a predetermined number of syringes and a second web material to a second face of the syringes at the same location such that the first and second web materials adhere to the first and second faces of the syringes, respectively, and with each other in areas between the syringes so as to form a banded syringe structure; and

a cap placement station having an automated device for placing caps on empty barrels of the syringes that are fed into the feed device and then delivered to the first transport device via the first transfer device.

41. The system of claim 40, wherein the cap placement station includes:

a second feed device for receiving the plurality of syringe caps and positioning the plurality of syringe caps according to a predetermined orientation; and

a second transfer device for transferring the plurality of syringe caps in the predetermined orientation to the transport device that carries the plurality of syringes such that the caps are placed on the empty barrels of the syringes prior to them being delivered to the web application station.

42. The system of claim 41, wherein the second feed device includes a centrifugal bowl feeder that receives the plurality of syringe caps in a random manner and includes tooling that positions the plurality of syringe caps in the predetermined orientation and a feeder rail for receiving the syringe caps from an exit port of the bowl feeder and delivering them to the second transfer device in the predetermined orientation.

43. The system of claim 41, wherein the second transfer device includes a second rotary device that has a plurality of individual receiving sections that receive the syringe caps in a manner in which each syringe cap is separated from the other and held within its own receiving section as the second rotary device rotates to deliver the syringe caps from the second feed device to the empty barrels of the syringes being carried by the transport device.

44. The system of claim 43, wherein the receiving sections comprise a number of notches formed radially around an outer edge of the first rotary device which is in the form of a vacuum rotary device connected to a vacuum source, each of the notches having at least one vacuum port that is connected to the vacuum source such that negative pressure is selectively produced within each notch to assist in holding the syringe cap within the notch.

45. The system of claim 44, wherein the notch is open along an upper edge of the second rotary dial and an opposite closed end formed along a lower edge of the second rotary dial.

46. The system of claim 44, wherein the cap includes a closed top head portion and an open stem extending therefrom, the cap being held within the notch as a result of the top head portion being disposed and contained within the notch.

47. The system of claim 44, wherein the second rotary device is in communication with a controller that permits the vacuum source to be selectively disconnected from a selected vacuum port of one of the notches resulting in the disengagement of the syringe cap from the one notch.

48. The system of claim 44, wherein the second rotary dial and the transport device are mounted and arranged relative to one another such that the syringe cap is automatically placed on one empty syringe barrel by rotation of the second rotary dial which results in a leading edge of the cap first engaging the empty barrel and further rotation causes a trailing edge of the cap to mate with the empty barrel resulting in the cap being securely attached to the syringe.