United States Patent [193
`
`Bisha
`
`[11]
`
`[45]
`
`Patent Number:
`
`4,689,043
`
`Date of Patent:
`
`Aug. 25, 1987
`
`[54]
`
`[75]
`
`[73]
`
`[21]
`
`[22]
`
`[51]
`[52]
`
`[5 3]
`
`[56]
`
`IV TUBE ACTIVATOR
`
`Inventor:
`
`Assignee:
`
`Jon Bisha, Coronado, Calif.
`
`IMED Corporation, San Diego,
`Calif.
`
`Appl. No.:
`Filed:
`
`841,402
`
`Mar. 19, 1986
`
`Int. Cl.4 ................... .. A61M 5/005; A61M 5/165
`U.S. Cl. .................................. .. 604/250; 604/249;
`604/251; 128/DIG. 13
`Field of Search ............. .. 604/250, 245, 251, 253,
`604/254, 255, 249; 128/DIG. 13
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`2,715,905
`2,775,240
`2,889,848
`3,189,038
`3,216,418
`3,316,935
`4,142,524
`4,155,362
`
`8/1955
`12/1956
`6/1959
`6/1965
`11/1965
`5/1967
`3/1979
`5/1979
`
`Ogle .................................. .. 128/214
`Morrisey, Jr. et a1.
`128/214
`Redmer ................. ..
`137/3 15
`von Pechmann
`137/315
`Scislowicz ........ ..
`.. 128/214
`Kaiser et al.
`...... ..
`Jassawalls et a1.
`..
`Jess ................................ .. 128/214 F
`
`4, 1 87,057
`4,230,15 1
`4,407,434
`4,41 1,652
`4,439, 179
`4,460,358
`4,524,802
`4,586,691
`
`2/1980
`10/1980
`10/1983
`10/1983
`3/1984
`7/1984
`6/1985
`5/1986
`
`Xanthopoulos ..................... .. 417/63
`Jonsson .......... ..
`137/595
`Kempf ............ ..
`222/214
`Kramer et al.
`.. 604/153
`.... ..
`Lueders et a1.
`604/34
`Somerville et al.
`604/250
`Lawrence et a1.
`.. 137/595
`Kozlow ..........................
`.... .. 251/7
`
`Primary Examz'ner—C. Fred Rosenbaum
`Assistant Exam1'ner—Gene B. Kartchner
`Attorney, Agent, or Firm—-Workman, Nydegger &
`Jensen
`
`[57]
`
`ABSTRACT
`
`An IV tube activator for use with a peristaltic IV infu-
`sion pump comprises means that require the closure of a
`tube associated clamp upon engagement of the IV tube
`with the pump and upon any subsequent disengagement
`of the IV tube from the pump. The activator further
`comprises means which simultaneously move the tube
`associated clamp to open the IV tube when the pump is
`being operated.
`
`9 Claims, 11 Drawing Figures
`
`ACTA EX. 1009-001
`
`ACTA Ex. 1009-001
`
`

`
`78N5:22.UAmmP3U
`
`Sheet 1 of 5
`
`4,689,043
`
`F177"/F/V7
`
`ACTA EX. 1‘009-002
`
`ACTA Ex. 1009-002
`
`

`
`U. S. Patent Aug. 25,1987
`
`Sheet2 of5
`
`4,689,043
`
`ACTA EX. 1009-003
`
`ACTA Ex. 1009-003
`
`

`
`78N5,2W,AmmPSU
`
`Sheet 3 of 5
`
`4,689,043
`
`ACTA Ex. 1009-004
`
`

`
`U. S. Patent Aug. 25,1987
`
`sh§et4 of5
`
`4,689,043
`
`ACTA EX. 1009-_005
`
`ACTA Ex. 1009-005
`
`

`
`U.S. Patent Aug. 25, 1987
`
`Sheet5 of5
`
`4,689,043
`
`ACTA Ex. 1009‘-006
`
`ACTA Ex. 1009-006
`
`

`
`1
`
`Iv TUBE ACTIVATOR
`
`4,689,043
`
`BACKGROUND OF THE INVENTION
`
`This invention relates generally to slide clamps used
`to control fluid flow through an IV line. More specifi-
`cally,
`the present
`invention relates to an apparatus
`which requires structural cooperation between the slide
`clamp and an IV infusion medical device for activation
`and deactivation of the clamp on the IV line. The pres-
`ent invention is particularly, though not exclusively,
`useful for the operative engagement and subsequent safe
`disengagement between an IV line and a linear peristal-
`tic IV infusion pump.
`DESCRIPTION OF THE PRIOR ART
`
`The use of medical devices for the IV infusion of
`medical solutions to patients is well known in the medi-
`cal professions. One type of medical device which has
`been widely used for this purpose is the peristaltic
`pump. As is well known in the pertinent art, peristaltic
`pumps create a moving zone of occlusion along a por-
`tion of the IV line to create the pumping action re-
`quired. However, because they require a patent IV tube
`for their operation, when the tube is not engaged with
`the pump, there is the danger of possible unwanted free
`flow of medical solution from the fluid source directly
`into the patient. Typically, the times of greatest concern
`for this danger are during the initial set-up of the IV
`administration system and at any subsequent times when
`the IV line is connected between the fluid source and
`
`the patient and becomes, for whatever reason, disen-
`gaged from the device.
`The control of fluid flow through patent IV lines
`from a fluid source to a patient is an ever present prob-
`lem and several devices to help solve this problem have
`been proposed. For example, slide clamps which con-'
`strict or obstruct the IV line are well known. Typically,
`these are manually operated clamps which are found in
`various configurations. One such clamp is a roller clamp
`of the type described in U.S. Pat. No. 3,189,038 to Von
`Pechmann. Another type is the well-known slide clamp,
`an example of which is disclosed in U.S. Pat. No.
`2,889,848 to Redmer. Again, such clamps are manually
`operated. Further,
`they must be activated indepen-
`dently and separately from any medical device which
`may be operatively attached to the IV fluid line.
`In situations where a medical device is to be used for
`the infusion of medical solutions to a patient, it is neces-
`sary to coordinate the use of a tube clamp with the
`operation of the device. For reasons given above, this is
`particularly so where a peristaltic pump is used. The
`idea of associating the clamp with the device to bring
`about a cooperation of structure therebetween is known
`in the prior art. For example, the invention disclosed in
`pending application Ser. No. 733,667 to Kozlow, now
`U.S. Pat. No. 4,586,691, which is assigned to the as-
`signee of the present invention, discloses a safety slide
`clamp which requires the cooperation of structure be-
`tween the device and the clamp itself. Such a clamp as
`disclosed in the Kozlow application, however, requires
`manual activation of the clamp to open the tube prior to
`the actual operation of the pump. Although such a
`clamp may be acceptable in some cases, in others the
`additional manipulation required to activate the clamp
`may be inconvenient or undesirable.
`In light of the above, it can be appreciated that there
`is a need to simplify the engagement of an IV tube with
`
`2
`a peristaltic infusion device. Specifically, there is a need
`to reduce the number of steps necessary to accomplish
`such an engagement. Thus, there is a need for a clamp-
`ing apparatus which eliminates the manual step of acti-
`vating the tube clamp.
`Accordingly, it is an object of the present invention
`to provide a clamp activation apparatus which ensures
`safe operation of a peristaltic infusion device. It is an-
`other object of the present invention to provide a means
`which ensures that only a restricted or obstructed IV
`tube can be engaged with a peristaltic device. Further,
`it is an object of this invention to provide a device
`which prevents removal of a patent tube from the de-
`vice. It is yet another object of the present invention to
`provide an apparatus which automatically makes the
`tube patent while simultaneously preparing the device
`for its operation.
`SUMMARY OF THE INVENTION
`
`invention
`The activation apparatus of the present
`provides for the activation of an IV tube associated slide
`clamp through the operation of structural components
`of an IV infusion medical device. The present invention
`includes means for holding the IV tube in operative
`engagement with the device while a handle which is
`pivotally mounted on the device is allowed to move
`into engagement with the clamp. The handle is struc-
`tured to urge the clamp from a closed position, wherein
`the clamp constricts or restricts the flow of fluid
`through the tube, to an open position wherein the tube
`is patent. The handle also includes structure to operate
`reversibly and urge the clamp from the open position to
`the closed position in preparation for the removal of the
`tube from the device. The apparatus of the present
`invention also comprises a lockout means which is
`mounted on the device to ensure that initial engagement
`of the IV tube with the device can only be accom-
`plished when the clamp is in the closed position.
`The novel features of this invention as well as the
`invention itself, both as to its organization and opera-
`tion, will be best understood from the accompanying
`drawings taken in conjunction with the accompanying
`description in which similar reference characters refer
`to similar parts and in which:
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`FIG. 1 is an elevation view of a peristaltic device
`incorporating the present invention in operable engage-
`ment with an IV tube;
`FIG. 2 isian elevation view of an IV tube in engage-
`ment with a linear peristaltic pump with various compo-
`nents disengaged from one other;
`FIG. 3A is an exploded perspective View of the slide
`clamp assembly with portions broken away for clarifi-
`cation;
`FIG. 3B is a perspective view of the lower hinge
`bracket of the present invention;
`FIG. 4 is a perspective view of the slide clamp assem-
`bly nested in the lower hinge bracket with the slide
`clamp in a tube constricting position;
`FIG. 5 is a perspective view of the slide clamp assem-
`bly nested in the lower hinge bracket with the slide
`clamp in a tube open position;
`FIG. 6 is a perspective View of the grip of the present
`invention;
`
`ACTA EX. 1009-007
`
`ACTA Ex. 1009-007
`
`

`
`4,689,043
`
`3
`FIG. 7A is an elevation view of the handle and slide
`
`clamp assembly in a disengaged configuration with
`portions of structure omitted for clarity;
`FIG. 7B is a view of the handle and slide clamp as-
`sembly as shown in FIG. 7A in a partially engaged
`configuration with portions of structure omitted for
`clarity;
`FIG. 7C is a view of the handle and slide clamp as-
`sembly as shown in FIG. 7A engaged with the slide
`clamp closed on the IV tube with portions of structure
`omitted for clarity; and
`FIG. 7D is a view of the handle and slide clamp
`assembly as shown in FIG. 7A engaged with the slide
`clamp positioned for an open IV tube with portions of
`structure omitted for clarity.
`
`DESCRIPTION OF THE PREFERRED
`EMBODIMENT
`
`The intended environment for the present invention
`is best seen in FIG. 1 where a peristaltic infusion device,
`generally designated 10, is shown in operative engage-
`ment with an IV tube 12. In FIG. 1, it is seen that a fluid
`source 14 can be suspended from appropriate apparatus
`associated with an IV pole 16 and IV tube 12 connected
`for fluid communication between fluid source 14 with a
`patient (not shown).
`Referring now to FIG. 2, it is seen that IV tube 12
`includes a pumping section 18 made from any appropri-
`ate elastomeric material which will permit an effective
`peristaltic action on the pumping section 18. One end of
`pumping section 18 is connected into fluid communica-
`tion with IV tube 12 by a fitment 22. A slide clamp
`fitment 20 connects the other end of pumping section 18
`with a continuation of IV tube 12. With therse connec-
`tions, a continuous fluid path is provided through IV
`tube 12 and its associated pumping section 18.
`As shown in FIG. 2, IV tube 12 and its associated
`pumping section 18 are mounted on the device 10 by the
`engagement of fitment 22 with upper bracket 26 and the
`engagement of slide clamp fitment 20 with lower hinge
`bracket 24. Thus, when IV tube 12 is engaged with
`device 10, pumping section 18 is positioned against the
`peristaltic pumping means 28. Also, with this engage-
`ment, pumping section 18 is placed under slight tension
`to ensure a snug fit between pumping section 18 and the
`peristaltic device 10. The connection of fitment 22 be-
`tween IV tube 12 and pumping section 18 can be ac-
`complished by any means well known in the art, such as
`solvent bonding. Likewise,
`the connection between
`slide clamp fitment 20 and pumping section 18 and IV
`tube 12 can be accomplished by any means well known
`in the pertinent art.
`.
`FIG. 3A shows an exploded perspective view of the
`slide clamp assembly for the present invention, gener-
`ally designated 30. As shown, slide clamp assembly 30
`includes slide clamp fitment 20 which is formed with a
`tab 34 and a tab 36. Further, tab 36 is formed with a key
`38. Slide clamp fitment 20 is also formed with guides
`40a and 401) and with retaining snaps 42a, b, c and d. The
`retaining snaps 42a, b, c and d allow for a snap fit en-
`gagement of the slide clamp 32 with slide clamp fitment
`20 into a structure which is best seen in FIGS. 4 and 5.
`Further, the engagement of slide clamp 32 with slide
`clamp fitment 20, which permits the sliding of clamp 32
`relative to fitment 20, is restrained by the mating en-
`gagement of ridges 44 with guides 40a and 40b. Al-
`though not shown specifically in FIG. 3A, it can be
`appreciated that ridges 44 are formed around the pe-
`
`4
`riphery of slide clamp 32 simply by forming a depres-
`sion on the surface of slide clamp 32 (depression not
`shown in FIG. 3A).
`In light of the foregoing, and since IV tube 12 is
`fixedly attached to slide clamp fitment 20, the engage-
`ment of slide clamp 32 with slide clamp fitment 20 al-
`lows for reciprocal motion of the slide clamp 32 relative
`to IV tube 12. Accordingly, this motion will cause ei-
`ther a patent IV tube 12 or a restricted IV tube 12. More
`specifically, by positioning clamp 32 relative to IV tube
`12 so that IV tube 12 is in the enlarged portion 48 of
`aperture 46, a patent IV tube 12 is obtained. Subse-
`quently, IV tube 12 can be restricted by moving slide
`clamp 32 relative to IV tube 12 so as to position IV tube
`12 within the slotted portion 50 of aperture 46 when it
`is desired to restrict or occlude IV tube 12. Reference to
`FIG. 4 and FIG. 5 shows the positioning of slide clamp
`32 relative to IV tube 12 and its respective positioning
`relative to slide clamp fitment 20 when the slide clamp
`32 occludes IV tube 12 and when slide clamp 32 allows
`fluid flow through IV tube 12.
`As shown in FIG. 2,
`lower hinge braket 24 is
`mounted to the front of the device 10. A more detailed
`
`description of lower hinge bracket 24 and its structure
`for the present invention is, however, best appreciated
`with reference to FIG. 3B. As shown in FIG. 3B, the
`lower hinge bracket 24 is formed with a yoke 52. Also
`formed on lower hinge bracket 24 is a recess 54 adapted
`for mating engagement with key 38 of slide clamp fit-
`ment 20. Additionally, lower hinge bracket 24 is formed
`with a platform 56 and a platform 58 which are adapted
`to respectively urge against tab 34 and tab 36 of slide
`clamp fitment 20. Also shown in FIG. 3B is sear 60
`which _is formed on lower hinge bracket 24.
`The cooperation of structure between slide clamp
`assembly 30 and lower hinge bracket 24 is shown by the
`combination of these Components in FIG. 4 or FIG. 5.
`In cross-referencing FIG. 3B with FIG. 4 or FIG. 5, it
`will be appreciated that the slide clamp fitment 20 of
`slide clamp assembly 30 nests in lower hinge bracket 24.
`It will.further be appreciated that the mating engage-
`ment of key 38 with recess 54 can only be accomplished
`upon a specific orientation of slide clamp fitment 20
`with respect to lower hinge bracket 24. This require-
`ment for specific orientation of key 38 with recess 54 is
`a safety feature which prevents an inadvertent mating
`of slide clamp fitment 20 with lower hinge bracket 24 in
`an inoperable condition.
`Grip 64, which is shown by itself in FIG. 6, includes
`a pair of hooks 660 and 66b which straddle the channel
`74 formed on grip 64. Also formed on grip 64 is a sear
`cam 68 and a pivot 70. It is to be appreciated that grip
`64 is pivotally attached to handle 72 at pivot 70 as
`shown in FIG. 2. A spring bias (not shown) urges grip
`64 in the direction opposite to that indicated by the
`arrow 78 and into its position relative to door 72 sub-
`stantially as shown in FIG. 2. Impliedly, grip 64 can be
`rotated around pivot 70 in the direction indicated by
`arrow 78 but the spring bias tends to restore grip 64 into
`the position shown in FIG. 2.
`To consider the cooperation of structure between
`handle 72, its associated grip 64 and slide clamp assem-
`bly 30, it should be appreciated that the closure of door
`76 onto device 10 places handle 72 relative to slide
`clamp assembly 30 as shown in FIGS. 7A, 7B, 7C and
`7D. These figures need to be considered sequentially. In
`FIG. 7A it can be appreciated that the handle 72 is
`rotatably attached to door 76 (not shown in FIG. 7A) at
`
`ACTA EX. 1009-008
`
`ACTA Ex. 1009-008
`
`

`
`5
`a pivot point 82. Rotation of handle 72 about pivot 82in
`the direction of arrow 80 brings both handle 72 and grip
`64 into initial contact with slide clamp 32 as shown in
`FIG. 7B. The comparision of FIG. 7B with FIG. 7A
`shows that when in the position shown in FIG. 7B,
`hooks 66a and 66b of grip 64 make contact with projec-
`tions 62a and 62b of slide clamp 32 and are urged to
`rotate grip 64 about pivot 70 in the direction shown by
`arrow 78 in FIG. 2. Further, and more specifically,
`movement of handle 72 from its position in FIG. 7A to 10
`FIG. 7B causes handle 72 to contact end portion 84 of
`slide clamp 32. A slightly further rotation of handle 72
`in the direction of arrow 80 about pivot point 82 causes
`hooks 66a and 66b to engage with projections 62a and
`62b as shown in FIG. 7C. Specifically, cross-referenc- 15
`ing FIG. 7B with FIG. 7C shows that the movement of
`handle 72 into its position as shown in FIG. 7C causes
`grip 64 to ride over the projections 62a and 62b of slide
`clamp 32 and allow the spring biased grip 64 to move
`into its position as shown in FIG. 7C.
`The relation of slide clamp 32 to slide clamp assembly
`30, as shown in FIG. 7C, corresponds to the configura-
`tion of slide clamp assembly 30 as shown in FIG. 4.
`Thus, as seen in FIG. 7C, IV tube 12 is still restricted
`and complete engagement of the handle 72 with device 25
`10 has not yet been accomplished. Further rotation of
`handle 72 in the direction of arrow 80 brings handle 72
`into position with slide clamp 32 as shown in FIG. 7D.
`FIG. 7D shows the locked engagement which results
`by closing door 76 on device 10. The lock is accom-
`plished by bringing latch extension 86 of handle 72 into
`position relative to anchor pin 88. As best seen in FIG.
`2, anchor pin 88 is fixedly attached to device 10. It can
`be appreciated that the rotation of handle 72 in the
`direction of arrow 80, as shown sequentially in FIGS.
`7A, 7B, 7C and 7D, wraps latch extension 86 around
`anchor pin 88 to lock door 76 against the device 10.
`This locking accomplishes several purposes. Impor-
`tantly, it positions door 76 against pumping section 18
`for the purpose of acting as a platen in the peristaltic
`action of peristaltic pumping means 28. Additionally,
`when locked on device 10, door 76 protects the engage-
`ment of fitments 20 and 22 with their respective brack-
`ets 24 and 26.
`
`An important safety feature of the present invention
`can be appreciated by cross-referencing FIG. 2 with
`FIG. 3B. Both FIG. 2 and FIG. 3B show a lookout
`spring 90. It is to be understood that in its unbiased
`position, lockout spring 90 is positioned to prevent the
`movement of slide clamp 32 from the position as shown
`in FIG. 4 to a position as shown in FIG. 5 when slide
`clamp assembly 30 is joined to lower hinge bracket 24.
`However, as door 76 is closed onto device 10, a pin 92
`which is attached to door 76 as shown in FIG. 2 makes
`contact with lockout spring 90 and bends it in the direc-
`tion of arrow 94 to allow the sliding movement of slide
`clamp 32 past lockout spring 90. Thus, with lockout
`spring 90 cleared from the path of slide clamp 32, slide
`clamp 32 is capable of being moved from a position as
`shown in FIG. 4 to the position shown in FIG. 5.
`It should be appreciated that the disengagement of IV
`tube 12 from the device 10 can be accomplished by
`reversal of the steps previously "discussed and that the
`cooperation of structure between grip 64 and slide
`clamp 32 would be substantially as shown by sequen-
`tially considering FIGS. 7D, 7C, 7B and 7A. Further, it
`should be appreciated that as door 76 is unlocked by the
`movement of handle 72, slide clamp 32 is repositioned
`
`4,689,043
`
`6
`to constrict IV tube 12. Accordingly, the removal of IV
`tube 12 from device 10 can only be accomplished when
`IV tube 12 is constricted to prevent fluid flow there-
`through.
`‘
`
`OPERATION
`
`For its operation the present invention requires that
`IV tube 12 be engaged with peristaltic device 10. This is
`accomplished by positioning fitment 22 on IV tube 12 in
`upper bracket 26. The pumping section 18 of IV tube 12
`is then stretched to allow the positioning of slide clamp
`fitment 20 into lower hinge bracket 24. This placement
`of IV tube 12 on device 10 places pumping section 18 of
`IV tube 12 against peristaltic pumping means 28. The
`initial engagement of slide clamp fitment 20 with lower
`hinge bracket 24 positions the slide clamp assembly 30
`against lower hinge bracket 24 in the manner shown in
`FIG. 4. Thus, for its initial engagement the slide clamp
`32 is positioned relative to IV tube 12 to constrict and
`prevent fluid flow therethrough. In both FIG. 2 and
`FIG. 4, it is seen that the key 38 of slide clamp fitment
`20 requires that the engagement of slide clamp fitment
`20 with lower hinge bracket 24 be accomplished only as
`shown in FIG. 4. This places tab 34 and tab 36 respec-
`tively against the platforms 56 and 58 of lower hinge
`bracket 24.
`
`With IV tube 12 positioned against device 10, door 76
`can be closed ontodevice 10. This results in a sequence
`of operations which will be best appreciated by refer-
`ence to FIGS. 7A, 7B, 7C and 7D. As the door 76 is
`closed onto device 10, the latch extension 86 of handle
`72 is positioned around anchor pin 88. Additionally, the
`grip 64 comes into contact with projections 62a and 62b
`of slide clamp 32. Also, handle 72 makes contact with
`slide clamp 32 against its end portion 84. Movement of
`handle 72 in a rotational motion about the pivot point 82
`in the direction of arrow 80 causes handle 72 to urge
`against slide clamp 32 and engage hoods 66a and 66b on
`grip 64 with the projections 62a and 62b on slide clamp
`32. Further movement of handle 72 in the direction of
`arrow 80, as shown in the progression from FIG. 7B to
`FIG. 7C, causes the grip 64 to engage with slide clamp
`32. Additional movement of handle 72 from its position
`in FIG. 7C to a position in FIG. 7D causes handle 72 to
`urge against slide clamp 32 and position slide clamp 32
`relative to slide clamp assembly 30 in a position as
`shown in FIG. 5. Accordingly, when handle 72 has
`been completely engaged with door 76, IV tube 12 is
`made patent for the passage of fluid therethrough. Si-
`multaneous with the opening of slide clamp 32 on IV
`tube 12, the closure of door 76 causes pin 92 to contact
`lockout spring 90 and bend it in a direction indicated by
`arrow 94 to allow further motion of the handle 72
`
`against slide clamp 32. As lockout spring 90 is moved
`out of the way to allow for the movement of handle 72,
`the sequence of engagement discussed above for FIG.
`7A through FIG. 7D is accomplished.
`A consideration of FIGS. 7A, 7B, 7C and 7D in re-
`verse order discloses the cooperation of structure re-
`A quired for disengagement of the IV tube 12 from device
`10. Specifically, as handle 72 is rotated about pivot
`point 82 in a direction opposite to arrow 80, the grip 64
`is withdrawn in a manner which urges the hooks 66a
`and 66b against projections 62a and 62b to cause move-
`ment of slide 32 from a position relative to IV tube 12 as
`shown in FIG. 5 to a position for slide clamp 32 relative
`to IV tube 12 as shown in FIG. 4. It is important that
`once grip 64 is withdrawn to the position as shown in
`
`ACTA EX. 1009-009
`
`ACTA Ex. 1009-009
`
`

`
`7
`FIG. 7C, the sear cam 68, which is clearly shown on
`grip 64 in FIG. 6, rides over sear 60, which is shown in
`FIGS. 4 and 5 as part of the lower hinge bracket 24, to
`urge grip 64 in the direction of arrow 78. This motion
`clears the grip 64 from the projections 62a and 62b of 5
`slide clamp 32 and allows for further rotation of handle
`72. It will be appreciated that the further rotation of
`handle 72 is continued until latch extension 86 is cleared
`from its engagement with anchor pin 88, thus, unlock-
`ing door 76 from device 10 and allowing the opening of 10
`door 76. Once door 76 has been opened, the IV tube 12
`can be removed from its fittings with device 10 and used
`as desired by the operator. It will be apreciated that the
`action of grip 64 in opening door 76 has caused slide
`clamp 32 to constrict upon IV tube 12 and prevent fluid 15
`flow through IV tube 12 upon the removal of IV tube
`12 from the device 10.
`While the IV tube activator has herein shown and
`disclosed in detail is fully capable of obtaining the ob-
`ject and providing the advantages herein before stated, 20
`it is to be understood that it is merely illustrative of the
`presently preferred embodiment of the invention and
`that no limitations are intended to the details of con-
`struction or design herein shown other than as defined
`in the appended claims.
`I claim:
`
`25
`
`1. An apparatus for engaging an IV tube with a de-
`vice used to infuse medical solutions to a patient which
`comprises:
`a rigid clamp having relatively fixed clamping sur- 30
`faces engageable with said IV tube and moveable
`relative to said tube between an open position
`wherein fluidcan flow through said tube and a
`closed position wherein said tube is occluded by
`said clamp;
`means for holding said IV tube in operative engage-
`ment with said device;
`lockout means mounted on said device to establish
`said clamp in said closed position before operative
`engagement of said IV tube with said device; and 40
`a handle associated with said device and moveable
`for engagement with said clamp to urge said clamp
`between said open position and said closed posi-
`tion.
`2. An apparatus as cited in claim 1 which further 45
`comprises:
`.
`means associated with said device to disengage said
`lockout means and allow engageable movement of
`said handle with said clamp.
`
`35
`
`50
`
`4,689,043
`
`8
`3. An apparatus as cited in claim 2 wherein a section
`of said IV tube has a first end and a second end and is
`made of a stretchable material.
`4. An apparatus as cited in claim 3 wherein said IV
`tube further comprises:
`a first fitment associated with said first end;
`a second fitment associated with said second end; and
`said holding means comprises a first bracket for en-
`gageably receiving said first fitment and a second
`bracket spaced from said first bracket for engage-
`ably receiving said second fitment to stretch said
`section between said first and second brackets.
`5. An apparatus as cited in claim 4 wherein said clamp
`is formed with a projection and said handle has a hook
`engageable with said projection to urge said clamp from
`said open position to said closed position.
`6. An apparatus as cited in claim 5 further compris-
`ing:
`a door hingedly mounted on said device for enclosing
`said IV tube between said door and said device
`when said door is closed.
`
`7. An apparatus as cited in claim 6 wherein said han-
`dle is mounted on said door and said lockout disengag-
`ing means is mounted on said door.
`8. A tube restrictior which comprises:
`a base;
`a rigid clamp having relatively fixed clamping sur-
`faces slidably mountable on said base having a first
`end and a second end and formed with a generally
`tear-drop shaped aperture having its wide portion
`adjacent said first end and its narrow portion adja-
`cent said second end;
`a projection extending from said clamp;
`a tube extending through said aperture;
`a first means mounted on said base for urging against
`said first end to position said tube in said wide
`portion of said aperture and allow fluid flow
`through said tube;
`second means mounted on said first means for
`urging against said projection to position said tube
`in said norrow portion of said aperture and occlude
`said tube; and
`a lookout means mounted on said base to position said
`tube in said narrow portion of said aperture upon
`initial mounting of said clamp on said base.
`9. A tube restrictor as cited in claim 8 wherein said
`base is a device used for the infusion of medical solu-
`tions to a patient.
`*
`=|<
`*
`*
`*
`
`ACTA EX. 1009-010
`
`ACTA Ex. 1009-010