BLISTER PACKAGE AND APPARATUS FOR OPENING THE PACKAGE

Abstract: A machine for opening or initiating the opening of a package comprising: means for guiding the package (10,16,18) along a selected path; means (36) for opening or initiating the opening of the package (10,16,18) as the package travels forward along the path; means for detecting the opening or the initiation of the opening of the package (10,16,18); and means (60) responsive to said detecting means for recording the occurrence of the opening or the initiation of the opening of the package.

Description: Background Of The Invention The dispensing of medication, especially in hospitals, nursing homes and the like, presently involves archaic, labor intensive, error prone procedures. The traditional method of dispensing medication on hospital floors requires the nurses on each shift to deposit the prescribed amount of medication for a particular patient into a cup. At the appropriate time, the nurse takes the medication filled cup to the designated patient and records on a chart the amount and kind of medication given to the patient, the time when the medication is given, and the identity of the patient to whom the medication is given. In many hospitals and nursing homes over thirty percent of nursing time is spent dispensing and recording the dispensing of medication, thereby contributing to the ever increasing cost of medical care and diverting nursing skills from more important functions and duties. Moreover, such traditional method of dispensing medication permits human error in any one of several steps of the method such as selecting the proper medication from several available medications, calculating the proper amount of medication, delivering the medication to the proper person, delivering the medication at the proper time, accurately and completely recording or "charting" the above-mentioned data concerning the dispensing of the medication, maintaining the physical copy of the record in the patient's chart or in a file, etc. Sometimes medication is left at the bedside of hospital patients who are not critically ill and who are considered to be of sound mind and reliable for self administration of the medicine by the patients. However, these patients often will not take the medication as directed, and thus, no accurate record of medication actually ingested can be made. Patients living at home are often left with the responsibility of following directions to take medication. In addition to those circumstances where such patients intentionally fail to follow the instructions, such patients, especially feeble minded or elderly patients, often forget to take the medicine, take the wrong amount of medication, take the medication at the wrong time, take one medication according to the instructions, for another medication, etc. Many patients are forced into nursing homes and sometimes into hospitals solely to insure that they take medication according to prescribed instructions. Such a forced residence can be cruel to a patient who wants to stay home and is oppressively expensive for those persons-or entities who pay for the hospital or nursing home stay. A traditional blister package containing medicine is described in US-A-4,294,361 whereas US-A-4,428,709 describes apparatus for opening a blister package. The present invention seeks to provide a blister package which is espcially but not exclusively adapted to contain a medicine, the package bearing a machine readable code including information regarding the package contents and generally being difficult to open. The invention seeks also to provide a machine for opening such a blister package, the machine being capable of reading the code borne on the package and recording the encoded information regarding the contents. In accordance with one aspect of the invention, there is provided a blister package containing an article, the package comprising a formed section including a cavity which accommodates the article and a cover member secured across the cavity to seal the article in the cavity, characterised in that the formed section includes a planar reinforcing member disposed around the cavity and adjacent to the cover member to prevent severing of the formed section of the package and the cover member bears a machine-readable code. In accordance with another aspect of the invention there is provided apparatus for opening such a blister package, comprising: means for receiving the package means for reading the code on the package; means responsive to the reading means for recording the characteristics of the contents of the package; and means for opening or initiating the opening of the package. According to the invention, the package bears a machine readable code indicating the characteristics of the medicine contained within the package, and the cutting machine includes means for reading the machine readable code, a cutting means specifically adapted for cutting the package, and if desired a means for selectively permitting the package to be severed. The means for permitting the package to be severed by the cutting means is preferably responsive to certain conditions concerning a particular patient's medical needs, such as the patient's identity, the characteristics of the medicine which the patient needs and the time when the person needs the medicine, etc. These conditions can be stored in a computer controller located within the cutting machine or operatively connected to the cutting machine from a remote location. If all of the conditions are not satisfied, then the computer controller in combination with the severance permitting means will not permit the package to be severed by the unique cutting means. If all of the conditions are met, then the computer controller in combination with the severance permitting means will permit the package to be severed by the unique cutting means. The cutting machine may be provided with means for recording the characteristics of the medicine in the package as indicated by the machine readable code, the time when the code was read, the identity of the patient, etc. Thus, the present invention provides a system for effective regulation, monitoring and accounting of the dispensing of medication to a patient. Brief Description Of The Drawings The invention will be described with reference to the accompanying drawings, wherein: Figure 1 is a front view of a medicine package in accordance with one embodiment of the present invention; Figure 2 is a front view of the medicine package shown in Figure 1 with the covering removed to expose the areas of adhesion; Figure 3 is a side view of the medicine package shown in Figure 1; Figure 4 is a side view of the medicine package shown in Figure 1 illustrating two knives or blades in position for cutting a portion of the covering bearing the machine readable code; Figure 5 is a front view of the medicine package shown in Figure 1 with a strip of the covering bearing the machine readable code having been cut and removed from the package; Figure 6 is a side view of the medicine package shown in Figure 5 after the covering has been pried and peeled from the remaining portion of the medicine package; Figure 7a is a front view of another medicine package for bottled medicine according to another embodiment of the present invention; Figure 7b is a side view of the medicine package shown in Figure 7a; Figure 8 is a side view of another medicine package for a syringe containing medicine according to another embodiment of the present invention; Figure 9 is a front view of another medicine package in accordance with yet another embodiment of the present invention with the covering removed to expose the areas of adhesion; Figure 10 is a side view of the medicine package shown in Figure 9 including the covering; Figure 11 is a schematic illustration of a cross sectional side view of a cutting machine in accordance with one embodiment of the present invention; Figure 12 is a schematic illustration of the cutting machine shown in Figure 11 as taken along the line A-A; Figure 13 is a schematic illustration of the cutting machine according to Figure 9 showing the position of a medicine package according to Figures 1 through 10 as it first enters the cutting machine; Figure 14 is a schematic illustration of an end view of the cutting machine and medicine package shown in Figure 13; Figure 15 and 16 are schematic illustrations of the cutting machine according to Figure 13 showing the progress of the medicine package as it advances through the cutting machine; Figure 17a is a top view of yet another medicine package in accordance with still another embodiment of the present invention; Figure 17b is a side view of the medicine package shown in Figure 17a including schematic severing lines; Figure 17c is a bottom view of the medicine package shown in Figures 17a and 17b illustrating the acute edge of the reservoir forming depression; Figure 18 is a side view another medicine package for bottled medicine according to another embodiment of the present invention; Figure 19 is a side view of another medicine package for a syringe containing medicine according to another embodiment of the present invention; Figure 20 is a schemtic end view of a cutting machine similar to that shown in Figure 11 and a medicine package in accordance with still another embodiment of the present invention; Figure 21 is a cross sectional perspective view of yet another medicine package in accordance with yet another embodiment of the present invention; and Figure 22 is a schematic illustration of a perspective view of another cutting machine in accordance with another embodiment of the present invention. Description Of A Preferred Embodiment Referring now to the drawings wherein like reference numerals and symbols refer to the same item, there is shown in Figures 1 through 6, a medicine package according to one embodiment of the present invention. The medicine package includes a sheet like covering 10 bearing a code, such as a machine readable code 12. The code 12 may comprise a main code 12a and an end code 12b. The code 12 may comprise a series of spaced bars (or bar code), as depicted in the drawings, or may comprise some other code such as a magnetic code. The medicine package also includes a formed section 14 including a first reservoir forming depression 16 disposed near an upper end thereof and a second, larger reservoir forming depression 18 disposed near the bottom end thereof. The second reservoir forming depression 18 is adapted to receive medicine in the form of a pill 20, capsule, tablet, suppository or the like. The covering 10 and the formed section 14 preferably are each fashioned of a tough, semirigid plastic. The covering 10 is preferably maintained in a sealing relation against the formed portion 14 by means of an adhesive. The adhesive is preferably applied between the covering 10 and the formed portion 14 as shown in Figure 2, that is, in the regions of the package surrounding the second reservoir forming 18 and between the first reservoir forming depression 16 and its associated upper package end. The code bearing portion of the covering 10 is generally disposed above the first reservoir forming depression 16 and generally is not in contact with the area where adhesive is present. Because of the location of the adhesive, it is quite difficult to peel the covering 10 from the formed portion 14 without cutting the package in a manner to be described later herein. The medicine package preferably includes a ring 22 disposed adjacent to the covering 10 in a correspondingly shaped depression around the wall of the second reservoir forming depression 18. Alternatively, the ring 22 may be embedded in the wall of the second reservoir forming depression 18. The ring 22 preferably is fashioned of wire, fiberglass, or other strong material and substantially prevents the medicine package from being severed in the region of the medicine 20 by conventional cutting means such as scissors. A similar ring 23 is disposed near the covering 10 in a correspondingly shaped depression around, or alternatively embedded in, the wall of the first reservoir forming depression 16. The ring 23 serves a function similar to that served by the ring 22. Figure 4 shows a pair of spaced knives or blades 36 utilized in opening the medicine package. The blades 36 slice the covering 10 as well as a portion of the walls of the first reservoir forming depression 16 across the width of the covering bearing the machine readable code 12. The positions of the blades 36 and the ring 23 are such that the ring 23 does not interfere with the slicing performance of the blades 36. Since the portion of the covering 10 between the blades 36 is not adhered to the formed portion 14, the action of the blades 36 produces a strip of covering 10 which is freely removed from the medicine package. Thereafter, the medicine package may be opened to expose and remove the pill 20 contained therein by prying apart the upper end of the formed section 14 and the upper edge of the lower portion of the covering 10. Such prying action allows the lower portion of the covering 10 to be peeled from the formed portion 14. To assist such peeling action, the edges of the formed portion 14 below the first reservoir forming depression 16 may be provided with indentations 24 as shown in Figure 2 so that fingers of a human can grip the covering 10 without simultaneously gripping the formed portion 14. The upper boundary of the bottom adhesive layer is angular to facilitate the separation of the covering 10 from the formed portion 14 so that the peeling action can be initiated. Medicine contained in a bottle or other container, especially fluid medicine, can be dispensed by a medicine package similar to that just described with reference to Figures 1 through 6. Such a medicine package is shown in Figures 7a and 7b for use with a bottle 70 having a conventional twist-off cap 72 and fashioned with a relatively narrow, indented neck portion located immediately below the cap 72. The medicine package includes a single sheet of material having a reservoir forming depression 74 disposed near a first longitudinal end thereof. The sheet is looped in its center region so that the second longitudinal end overlaps the first longitudinal end. The ends may be adhered in the manner described above with respect to Figure 2 or described hereinafter with respect to Figure 9, and the sheet may be provided with a code also in the manner described above with respect to Figures 1 through 6. The central region of the sheet is fashioned such that the lateral edges form a smaller diameter loop than the loop diameter in the interior of the sheet central region, thereby ensuring that the bottle cap is maintained within the looped portion of the medicine package. It will be appreciated that the narrow, indented bottle neck facilitates such maintenance. A split wire ring 77 similar to that previously described may be placed in a depression immediately inside of each lateral edge of the sheet in the loop area and extending into the overlapping area to substantially prevent the package from being severed in the loop region or overlapping area by conventional cutting means such as scissors. Alternately the sheet may be made of metal, fiberglass or other strong material to substantially prevent such severing by conventional cutting means. The medicine package may be opened in the manner previously described with respect to Figures 1 through 6. It should also be appreciated that the cap 72 of the bottle 70 may be maintained likewise within the second reservoir forming depression 18 of the medicine package shown in Figures 1 through 6, as exemplified in Figure 18. Medicine contained in a syringe 80 can be dispensed by a medicine package shown in Figure 8. Such medicine package is similar to that just described with reference to Figures 1 through 6, with the second reservoir forming depression 18 being shaped generally conformingly with the syringe 80 which it contains. The syringe 80 can be any standard syringe, including a TUBEX brand syringe, and preferably is disposable. A similar package could be used to contain an entire bottle of medicine. A slightly modified version of the medicine package shown in Figures 1 through 6 is shown in Figures 9 and 10. It will appreciated from the discussion of Figures 1 through 6 and from the drawing of Figures 2 that the medicine package could be opened without removing a strip of code bearing covering by inserting a sharp utensil such as a pin or knife between the covering 10 and the formed portion 14 along the lateral edges of the medicine package near the first reservoir forming depression 16, where there is no adhesive. The modified medicine package depicted in Figures 9 and 10 overcomes this disadvantageous feature of the medicine package depicted in Figures 1 through 6 by providing an adhesive between the covering 10 and the formed portion 14 lateral to the first reservoir forming depresssion 16. The modified medicine package includes two overlapping coverings 10, with the outer-most covering bearing the machine readable code 12. The two coverings may be secured such as by an adhesive in an overlapping relation so long as the severing of the outer-most covering by the blades 36 permits the resulting code bearing the strip to be freely disengaged from the medicine package. Here again the upper boundary of the bottom adhesive layer is angular to facilitate the separation of the covering 10 and the formed 14 so the peeling action may be initiated. In yet another modified version of the medicine package, the first reservoir forming depression 16 is eliminated. The formed portion 14 is flat in the area where the first reservoir forming depression 16 otherwise would be located, and the covering 10 is sealed to the formed portion 14 with an adhesive much the same as depicted in Figure 9. The medicine package would be opened by cutting with a knife through the code bearing region of the covering 10 without cutting through the formed portion 14. Once such cutting has been accomplished, the covering 10 may be grasped at the indentation 24 and then the covering 10 may be peeled from the formed portion 14 in the manner previously described for the other medicine packages. Figures 11 through 16 illustrate a cutting machine that can be utilized in severing a strip of code bearing covering from the medicine packages shown in Figures 1 through 6, Figures 7 and 8 and in figures 9 and 10. The cutting machine includes a central longitudinal passageway provided with a trough conformingly shaped with the first reservoir forming depression 16, as shown in Figure 14. The mouth of the passageway includes an inclined section 30 to facilitate the reception of the first reservoir forming depression 16 in the trough of the passageway. Such reception is also facilitated by the trough's lateral protrusion from the remainder of the cutting machine. The cutting machine includes a first gate 32 disposed inwardly of the passageway mouth. The first gate 32 is spring biased into a position blocking the trough portion of the passageway. The first gate 32 is fashioned with an inclined section opening toward the passageway mouth, such that forceful pressing of the lateral edge of the medicine package near the first reservoir forming depression 16 inwardly against the first gate 32 causes the first gate 32 to be moved against its spring bias to a position where it does not block the passageway trough. The cutting machines is also provided with a means for reading the machine readable code 12 provided on the medicine package. Such means is disposed inwardly of the first gate 32 and may comprise a scanner 34. Thus, as the first reservoir forming depression 16 passes inwardly of the first gate 32, the scanner 34 reads or deciphers the machine readable code 12. The scanner 34 may be actuated for a selected time duration by a predetermined movement of the first gate 32 against its spring bias. A second gate 35 is disposed inwardly of the scanner 34 and may be selectively positioned either in the passageway trough or out of the passageway trough. As shown in Figures 11 through 13, 15 and 16, the second gate 35 is spring biased to a position in the passageway trough and may be selectively moved preferably by means of a solenoid to a position outside of the passageway trough in response to the reading of the code by the scanner 34. In one method and construction of the present invention, the second gate 35 can be fixedly positioned out of the passageway trough or eliminated entirely. In another embodiment of the present invention, means are provided to prevent the solenoid from being activated to raise the second gate 35 except for a selected time duration after the first gate 32 has been raised or after a portion of the code has been read. In another embodiment of the present invention, means are provided to prevent the solenoid from being activated to raise the second gate 35 except when the first gate 32 is raised. The cutting machine also includes a pair of spaced knives or blades 36 disposed inwardly of the second gate 35. The knives 36 are provided with an inclined, sharp leading edge depending very slightly into the passageway trough. The rear edge of each knife is blunt and depends slightly into the passageway trough to prevent the first reservoir froming depression 16 from being inserted into the rear opening of the passageway. When the lateral edge of the medicine package near the first reservoir forming depression 16 passes beneath the second gate 35, as shown in Figure 16, the medicine package can be moved further along the passageway trough so the blades 36 sever the covering 10 through the machine readable code 12 and such that a strip of code bearing covering freely disengages from the medicine package. Thereafter, the medicine package may be opened as discussed above with reference to Figures 5 and 6. The cutting machine may also be provided with a means (not shown) for automatically collecting the strip of code bearing covering as the covering 10 is severed by the blades 36. The dimensions of the medicine package and the distance between the first gate 32 and the second gate 35 are chosen such that the first gate 32 moves into the passageway trough and prevents the backward movement of the first reservoir forming depression 16 once the leading lateral edge of the medicine package has passed beneath the second gate 35. The portion of the cutting machine forming the passageway trough may be translatable with respect to the remaining portion of the cutting machine. In this embodiment of the invention, the first reservoir forming depression 16 is disposed within the trough and remains stationary with respect to the trough. The portion of the cutting machine forming the passageway trough and the medicine package are then together longitudinally translated with respect to the remaining portion of the cutting machine. The cutting machine either may include or may be utilized with auxiliary equipment such as a computer controller, display screen and time indicating means operatively interconnected with the scanner 34 and the second gate 35. The computer controller may be programmed with a variety of selected conditions that must be satisfied before the second gate 35 is permitted to be positioned out of the passageway trough. Such conditions may include a patient's identification, the characteristics (including quantity and kind) of medicine that the patient needs, the time intervals at which such medicine should be given to the patient, the time when the patient was last given the particular medicine, etc. Since the machine readable code 12 indicates characteristics (such as quantity and kind) of the medicine contained in the medicine package, the scanner 34 can decipher these characteristics. If the characteristics of the medicine in the medicine package do not satisfy the conditions, if the time when the code 12 is deciphered by the scanner 34 does not satisfy the conditions, or if any other condition is not satisfied, then the computer controller will not permit the solenoid to be activated to move the second gate 35 out of the passageway trough and the second gate 35 will obstruct forward movement of the first reservoir forming depression 16 in the passageway. If the second gate 35 is not moved out of the passageway trough, then the first gate 32 will be held in a position out of the passageway trough by the trailing lateral edge of the medicine package, thus allowing the medicine package to be retracted back through the mouth of the passageway. If the conditions are not satisfied, the computer controller can display on the display means the conditions that were not satisfied. The position of the machine readable code 12, including the main code 12a and the end code 12b, and the scanner 34 are selected such that after the main code 12a is completely read by the scanner 34, the second gate 35 will be moved out of the passageway trough by activating the solenoid only if all conditions are satisfied. In one embodiment, the solenoid will be activated only if the first gate 32 is also raised. Further movement of the medicine package to a point where the leading lateral edge thereof lies beneath the second gate 35 causes the first gate 32 to drop into the passageway trough whereby the first reservoir forming depression 16 cannot move backward past the first gate 32. The main code 12a may contain the information respecting the characteristics of the medicine contained in the medicine package. The scanner 34 can completely read the main code 12a before an edge of the medicine package abuts or passes beneath the second gate 35. From reading the main code 12a, the computer controller determines whether the various conditions are satisfied. If the conditions are not satisfied, then the second gate 35 is not moved out of the passageway trough and the medicine package can be retracted back through the mouth of the passageway. If the conditions are satisfied, then the second gate 35 is moved out of the passageway trough to permit forward movement of the first reservoir forming depression 16 toward the knives 36. Such forward movement permits the scanner 34 to read the end code 12b, which signals the computer controller that an edge of the medicine package has passed beneath the second gate 35. When the end code 12b has been read by the scanner 34, the first gate will have moved into the passageway trough to prevent the medicine package from being retracted back through the mouth of the passageway, and the computer controller will record in its permanent memory all of the information associated with the medicine package, including the time the end code 12b was read, etc. It will be appreciated that the end code 12b is used to indicate the position of the medicine package in the passageway trough, especially the position when the medicine package is blocked by the first gate 32 from being retracted back through the passageway mouth and to indicate that the medicine package is beneath the second gate 35 to permit the medicine package to be passed forward through the cutting machine. Alternatively, the end code 12b could be replaced by means for sensing the position of the medicine package in the passageway trough. Such sensing means can be a photodiode-light beam combination or an electro-mechanical switch appropriately positioned along the passageway trough. The reading of the end code 12b also will deactivate the solenoid which raises the second gate 35. Since such code reading is not accomplished unless the leading lateral edge of the medicine package lies beneath the second gate 35 and unless the first gate 32 prevents the medicine package from being retracted, the second gate 35 will abut the cover 10 of the medicine package (and will not depend into the passageway trough) until the medicine package has been advanced to a position where the trailing lateral edge of the medicine package has passed the second gate 35. The cutting machine may be provided with means for preventing the solenoid from being activated to raise the second gate 35 except for a selected time duration, for example two seconds, after the main code 12a has been read. This feature of the cutting machine helps conserve the power of an energy source, such as a battery, used in activating the solenoid in the event that the package is not passed forward so that the end code 12b is read to deactivate the solenoid or to record permanently the information associated with the medicine package. This feature also prevents a person using the device from elevating the solenoid by the insertion of one package, retracting the package quickly, and then inserting a second package completely through the device (because the second gate 35 is raised) without having the second package code satisfy the conditions. It will be appreciated that if the package is not moved forward after the main code 12a is read, the conditions are satisfied, the second gate 35 is raised, and the time duration exhausted (so that the second gate 35 is lowered), then a lateral edge of the medicine package will lie beneath the first gate 32 whereby the medicine package may be retracted back through the mouth of the passageway. As previously stated, in one embodiment of the present invention means are provided to prevent the solenoid from being activated to raise the second gate 35 unless the first gate 32 is in a raised position. It will be appreciated that if in this embodiment the package is retracted from the machine after main code 12a has been read, then the first gate 32 will depend into the passageway trough after the retraction of the package and consequently the solenoid will be deactivated. The power of the solenoid energy source will be conserved. Also, a second package cannot pass through the machine without satisfying the conditions. In a further modification of this embodiment, means are provided for preventing the solenoid from being activated to raise second gate 35 except for a selected time duration, for example two seconds, after the first gate 32 is raised. This feature of the cutting machine helps conserve power of the energy source used in activating the solenoid in the event the package is not passed forward so that the end code 12b is read to deactivate the solenoid. The cutting machine can also be utilized to record all characteristics concerning the opening of a medicine package such as the type and dosage of medicine, the time when the package was opened, etc. without regard as to whether any conditions for opening the package have been satisfied. In this mode of operation, the second gate 35 can be fixedly positioned out of the passageway trough or eliminated entirely. The position of the machine readable code and the scanner 34 are selected such that after the end code 12b is completely read by the scanner 34, the first gate 32 will have dropped into the passageway trough whereby the first reservoir forming depression 16 cannot move backward past the first gate 32. The scanner 34 will have read the main code 12a, and the computer controller will record in its permanent memory all of the information associated with the medicine package, including the time the end code 12b was read. Since after the end code 12b is read the package cannot be retracted back through the mouth of the passageway, the package can be removed from the cutting machine only by moving it forward past the knives 36. Consequently, it is reasonable to presume that the package was opened and the medicine contained therein was administered at the time the end code 12b was read. This embodiment of the invention can be utilized without an end code 12b if the distance between the main code 12a and the trailing edge of the medicine package and the distance between the scanner 34 and the first gate 32 are selected such that the first gate 32 drops into the passageway trough immediately after the main code 12a has been read by the scanner 34. The machine depicted in Figures 11-16 may be used without a code reader or scanner 34 to detect when any package is opened. In this embodiment of the invention, the scanner 34 is replaced by either a mechanical switch of a photoelectric cell/light source arrangement. The activation of the switch or the interruption of the light beam detected by the photoelectric cell would indicate that a package is disposed at a certain location along the passageway trough. By placing the switch or arrangement at a distance from the first gate 32 such that a standard sized package would have completely passed the first gate 32 by the time the package causes the activation of the switch or the interruption of the light beam detected by the photoelectric cell, such activation or interruption would indicate that the package is in the process of being opened by the machine. The mechanical switch or the photoelectric cell/light source arrangement is in communication with the computer controller 60 so that the time when the switch is activated or the light beam detected by the photoelectric cell is interrupted is recorded along with other conditions surrounding the movement of the package along the passageway trough. In this embodiment of the invention, the package could of course be constructed without any code 12. To avoid the problem of having an object other than a package activate the switch or interrupt the light beam detected by the photoelectric cell, the machine could be provided with a plurality of mechanical switches or photoelectric cell/light source arrangements at different horizontal levels to detect the presence of the cover 10 and the first reservoir forming depression 16. Unless all of the switches or arrangements indicate the presence of the package at a particular location along the passageway trough, the computer controller 60 would be programmed not to record that a package was in the process of being opened. The cutting mechanism can be utilized in a variety of manners. For example, each nurse and each patient could be provided with a card, bracelet, ring, or the like provided with a machine readable code which identifies the nurse and the patient, respectively. The computer controller contained in the cutting machine or operatively connected to the cutting machine from a remote location would be programmed with the complete medicine needs of each patient on the nursing unit. The nurse would periodically visit each patient for whom she has responsibility with the cutting machine and with a bin of medicine packages containing different varieties and quantities of medicine. Alternatively, each patient could be provided with a corresponding bin or bins in a locked condition at his bedside. The nurse would stop at each patient and with means (not shown) decipher the machine readable code on the nurse's card and on the patients bracelet within a selected time interval. (The unshown deciphering means could also read a machine readable code associated with a locked bin of medicine packages for unlocking the bin if the conditions for giving medication contained within the bin are satisfied.) In an alternate, less preferred embodiment of the invention, each nurse could be assigned a corresponding cutting machine, in which event, the nurse's code would be entered into the computer controller only a single time for a selected time duration and would not need to be entered again when the nurse gives medication to each patient. Such deciphering means would record the nurse's identifi-cation and the patient's identification in the temporary memory of the computer controller associated with the cutting machine. The computer controller would then display the complete medicine needs of the patient including such characteristics as: the type of medicine needed by the patient, the number of units of medication needed, the time when the patient was last given the medicine, etc. The nurse would then insert the first reservoir forming depression 16 of a medicine package containing the appropriate medicine into the cutting machine, again within a certain time interval after the nurse's machine readable code and the patient's machine readable code were deciphered. If the conditions for giving the patient the medicine contained within the package are satisfied, then the second gate 35 will be elevated out of the passageway trough by the solenoid, thereby allowing the medicine package to be advanced. Once the end code 12b has been read, then the time when the code of the medicine package was scanned and the characteristics of the medicine in the medicine package are permanently recorded in the computer controller. When the end code 12b has been read, the medicine package has moved to a position where it is prevented by the first gate 32 from being retracted from the cutting mechanism and can be released from the cutting mechanism only by sliding the first reservoir forming depression 16 past the blades 36. The duration of the aforementioned time intervals is selected so that one may reasonably presume that the nurse and patient are in close proximity with the cutting machine when the medicine package is passed through the cutting mechanism and so that it is reasonable to presume further that the nurse will thereafter promptly give the medicine to the patient. Since the strip of code bearing covering is disengaged from the medicine package, it is extremely difficult to repiece the medicine package after it has passed the blades 36 to present a code that the scanner 34 can decipher. If the cutting machine is provided with means for automatically collecting the strip of code bearing covering then it may be impossible to repiece the medicine package. After the nurse has completed the round of giving medications, the information recorded in the computer controller may be transferred to other electronic devices for storage or for printout. Alternatively the cutting machine may be operatively interconnected with wiring near a patient's bedside (such as the nurse call system or electrical wiring for lights or telephones) to a remotely located computer controller operatively interconnected to the same wiring while the process of passing the medicine package through the cutting machine is occurring. A coding electrical signal may be used to initiate and terminate the use of such wiring for this function. If the cutting machine were used without the second gate 35, the nurse would operate the cutting machine in the same manner as just described, however, the medicine package could be opened without satisfying any conditions for giving the patient the medicine contained within the medicine package. It should be appreciated that the stored information, especially when used with the identification and unlocking of a bin of medicine, can be used advantageously for inventory control and for monitoring theft of medicine. Many patient functions such as pulse, blood pressure and temperature are currently monitored with electronic devices. The present invention contemplates that these functions may be analyzed by and recorded in the computer controller and might even be some of the conditions that must be satisfied before a medicine package can be severed by the cutting machine. So, for example, if a patient is prescribed a medicine to relieve high blood pressure and the patient for some reason has a dangerously low blood pressure when the nurse contemplates dispensing the medicine to the patient, then the controller can be programmed to prevent the medicine package from being severed and will display the unsatisfied condition -- a minimum amount of blood pressure. The cutting machine may also be used for out-patient care. Such use of the cutting machine would be similar to that already mentioned, however, the cutting machine could also be provided with an alarm when a certain medicine or a quantity of a certain medicine had not been taken within a selected time period. Such an alarm could comprise light or sound generating means mounted on the cutting machine or light or sound generating means located in a doctor's office and operatively interconnected through telephone lines or the like with the cutting machine. The alarm can also be included in or operatively connected to a cutting machine used for self administered medicine by hospital patients and even for hospital staff administered medicine. The previously described construction of the medicine package of the present invention makes it very difficult to open the medicine package without passing the medicine package through the cutting machine. Furthermore, the cutting machine can require that the patient's machine readable identification code be read (or the patient's name or number be manually entered into the computer controller) before the medicine package is permitted passage therethrough. Thus, the medicine dispensing system comprising the medicine package and cutting mechanism is child proof, because it is unlikely that a child will be able to open the medicine package without passing it through the machine and because the child will not be able to pass it through the machine without having possession of the patient's code (which presumably is possessed by one or more responsible adults). Figures 17 through 19 show yet another medicine package according to the present invention. The medicine package includes a covering and a single reservoir forming depression which contains medicine such as a pill. As shown in Figures 18 and 19, the reservoir forming depression may surround either a bottle cap or a bottle including its cap or a syringe, respectively, as previously described. The covering bears a machine readable code comprising a main code that indicates the characteristics of the medicine contained within the medicine package and an end code that indicates the position of the medicine package in the cutting machine. The cutting machine depicted in Figures 11 through 16 is modified to provide blades which will cut the medicine package along the lines 40, 42 depicted in Figure 17b. Thus, one blade severs the medicine package immediately below the covering and substantially parallel with the covering, and the other blade cuts the medicine package through the covering where the code 12 is located so that the cover and the machine readable code are broken into two pieces, thus making it very difficult to reconstruct the machine readable code in a readable form. To assist severing along the line 42, the reservoir forming depression, instead of being completely rounded, may be provided with a relatively acute edge as shown in Figure 17c that may be pressed against the blade to facilitate the initiation of severing. Movement of the medicine package along the passageway trough may be facilitated be extending a longitudinal end of the package to provide a handle 43, as best shown in Figures 17b, 18 and 19. The medicine packages shown in Figures 18 and 19 would be opened with a cutting machine provided with a longitudinal, open channel along the length of the passageway trough so that the bottle or syringe can depend from the trough. The medicine packages shown in Figures 17a, b and c might be designed such that the size of the single reservoir forming depression corresponds with the size of the medicine pill. Such medicine packages can be used with a standard size passageway trough by providing each medicine package with longitudinal extensions on each side of the reservoir forming depression, as shown in Figure 20. The medicine package shown in Figure 20 is characterized by a point "a" at one longitudinal end near the code, a point "d" at the other longitudinal end, a point "b" adjacent to the reservoir forming depression toward point "a", a point "c" adjacent to the reservoir forming depression toward point "d". The medicine package is designed so that point "a" abuts the inner wall of the passageway and point "c" abuts the outside wall of the passageway trough when the medicine package is inserted into the cutting machine. Also, the distance from point "b" to point "d" is greater than the distance from point "a" to point "c". This design will ensure that the medicine package is positioned properly for the code to be read. The code 12 is located at a fixed longitudinal distance from a point "a", so that the code 12 will be read by the scanner 34 and will be severed by the cutting means that cuts along line 40. Alternatively the code 12 may be relatively wide in a longitudinal direction so that the code 12 will be read, but in such a case the code 12 should be rendered undecipherable by ink or heat warping, as will be more fully described later herein. The medicine packages shown in Figure 17 through 19 can also be used with yet another modified version of the cutting machine shown in Figure 11 through 16. In such modified cutting machine a single knife or blade is positioned to cut the package along the line 42, but no blade is provided to cut along the line 40. Thus, the blade would sever the package immediately below the covering and substantially parallel to the covering. The cutting machine would also be provided with means for sensing the presence of the medicine containing depression of the medicine package at a selected location along the passageway trough. Such sensing means could comprise a photodiode - light beam combination or an electro-mechanical switch. In this embodiment of the invention, the information associated with the medicine package would not be permanently recorded and/or the second gate 35 would be prevented from being raised, unless the sensing means sensed the presence of the medicine containing depression in the passageway trough. Consequently, if someone were to pass or attempt to pass through the cutting machine only the top, cover portion of a medicine package already severed along the line 42, then the cutting machine would not record any information associated with the already opened medicine package. In the embodiments where cutting of the medicine package occurs along the lines 40 and 42, a ring of wire similar to the previously discussed ring 23 could be placed in a position comparable to the position of ring 23 in Figures 1 through 10. Such a ring would discourage opening the package with conventional cutting means such as scissors, but would not interfere with the cutting of the medicine package along either line 40 or line 42, since line 42 would be above the ring. In the embodiments where cutting of the medicine package occurs along line 42 only, a ring of wire similar to the previously discussed ring 22 could be placed in a position comparable to the position of ring 22 in Figures 1 through 10. Such a ring would discourage opening the package with conventional cutting means, but would not interfere with the cutting of the medicine package along line 42, since line 42 would be below the ring. Figure 21 shows yet another medicine package according to the present invention. The medicine package includes a covering and a formed section including a single reservoir forming depression in which the medicine is deposited. The covering bears a machine readable code shaped in the circle. A cutting machine for the medicine package depicted in Figure 21 is depicted in Figure 22. The cutting mechanism includes a pair of opposing slots 50 into which the medicine package is slidingly received. The cutting mechanism includes means for deciphering the code, such as a scanner 52. The scanner 52 may be mounted on a shaft rotatable in a single direction. The shaft may be rotated by either electrical means or mechanical means (such as a handle) and includes a blade 54 selectively extendable by means not shown from a position away from the medicine package covering to a position where the blade 54 punctures the medicine package covering. If certain conditions are satisfied after the scanner 52 has read the code on the medicine package, then the blade 54 will be extended to puncture the medicine package covering and the shaft will be rotated though three hundred sixty degrees so that the blade 54 severs the covering in a complete circle. The blade 54 will be retracted only after it has rotated a full 360 degrees so that the medicine package cannot be withdrawn until the covering has been cut completely. The severed, circular portion of the medicine package covering contains a substantial portion of the machine readable code so that the medicine package cannot be reconstructed easily to provide a readable code. If the conditions are not satisfied, then the blade 54 will not be extended, and the medicine package will not be cut. The cutting machine shown in Figure 22 may be provided with a computer controller display, etc. for performing the functions similar to those previously described. The cutting machine shown in Figure 22 may also be utilized to open the medicine package even when no conditions are satisfied. In this embodiment of the invention, the blade 54 would be extended in all but one radial position as the shaft is rotated, and the package would be inserted or withdrawn only when the blade 54 is in such one radial position. A ring of wire, fiberglass or other strong material would be placed in the package to prevent the package from being opened by conventional cutting means. The present invention also contemplates that a portion of the code bearing covering need not be removed from the medicine package by cutting means in order to render the code undecipherable, but other means such as the application of ink over the code bearing covering or heat warping of the code bearing covering may be used to render the code undecipherable instead of a cutting means. Such ink application or heat warping means could be positioned on the tip of the second gate 35 in the cutting machine depicted in Figures 11-16. Also, if such ink application or heat warping means were utilized then only one knife 36 would be needed in Figures 11-16, and the arrangement of adhesive shown in Figure 9 (with only a single cover) would be adequate. Similarly, if such ink application or heat warping were utilized then only the knife for cutting along line 42 of Figure 17b would be needed for that embodiment of the invention. Also, if the code comprises a magnetic code, then it may be rendered undecipherable by a magnet or other magnetic filed producing means. The present invention described herein has been described with reference to medicine and to bottles and syringes, however, it should be understood that the invention applies with equal effectiveness to a wide variety of objects.

Claims: A blister package containing an article, the package comprising a formed section (14) including a cavity (18) which accommodates the article (20) and a cover member (10) secured across the cavity (18) to seal the article in the cavity, characterised in that the formed section (14) includes a planar reinforcing member (22) disposed around the cavity (18) and adjacent to the cover member (10) to prevent severing of the formed section (14) of the package, and the cover member (10) bears a machine-readable code (12). A package according to claim 1 wherein the cover member (10) is adapted to be severed by the tool (36) to initiate opening of the cavity (18). A package according to claim 1, wherein the package comprises also a portion remote from the cavity and wherein the remote portion is adapted to be severed by the tool (36) to initiate opening of the cavity (18) without the tool entering the cavity (18). A package according to claim 1, wherein the package comprises also a portion remote from the cavity and wherein the formed section defining the cavity (18) is adapted to be severed by the tool (36). A package according to claim 3, wherein the remote portion is constituted by the formed section (14) including a depression (16) and the cover member (10) secured across the depression. A package according to claim 5, wherein the formed section (14) includes a planar reinforcing member (23) disposed around the depression (16) substantially to prevent complete severing of the formed section of the package. A package according to claim 5 or claim 6, wherein that portion of the cover member (10) secured across the depression bears the machine-readable code (12). A package according to any one of claims 1 to 7, wherein the planar reinforcing member (22,23) comprises a ring. A package according to any one of claims 1 to 10, wherein the article (20) is a medicament and wherein the machine-readable code (12) includes information regarding the medicament. A package according to any one of claims 1 to 9, wherein the machine-readable code (12) is a bar code. Apparatus for opening or initiating the opening of a package according to any one of claims 1 to 10, comprising means for receiving the package; means (34) for reading the code on the package; means (60) responsive to the reading means (34) for recording the characteristics of the contents of the package; and means (36) for opening or initiating the opening of the package. Apparatus according to claim 11 wherein the opening means (36) is a blade. Apparatus according to claim 11 or claim 12 for opening or initiating the opening of a package according to claim 3 or claim 4, including means for guiding the package along a linear path past the blade for severing the package. Apparatus according to claim 11 or claim 12 for opening or initiating the opening of a package according to claim 2, comprising also means for rotating the blade (36) relative to the package for severing the cover member (10). Apparatus according to any one of claims 11 to 13 comprising also means (35) responsive to the reading means (34) for selectively permitting the opening of or the initiation of the opening of the package. Apparatus according to any one of claims 11 to 13 and claim 15, comprising also means (32) responsive to the reading means (34) for selectively preventing withdrawal of the package from the receiving means. Apparatus according to any one of claims 11 to 16, wherein the means (60) responsive to the reading means (34) records also the time at which the package is opened. Apparatus according to any one of claims 11 to 17, comprising also means for rendering the machine-readable code (12) indecipherable after the reading means (34) has read the code. Apparatus according to any one of claims 11 to 17, wherein the means (36) for opening or initiating the opening of the package serves to sever the machine-readable code (12) from the package. Apparatus according to claim 19, including means for collecting the severed machine-readable code.

Inventors: ELLIS, DONALD G., MOULDING, THOMAS, S., JR. DR.
Applicants: MOULDING JR., THOMAS S., DR.
Application year: 1986
Main classification: B65B69
IPC codes: A61J7, A61J1