JP5994122B2 - Blood collection tube opening device - Google Patents

Description

  The present invention relates to a blood collection tube opening device for opening a seal lid for sealing an upper end opening of a blood collection tube in a ring shape. More specifically, with respect to a sealing lid made of a laminate film for sealing the upper end opening of the blood collection tube and a sealing rubber placed in the center of the film, the cylindrical opening blade and the axial center position of the opening blade Open the opener equipped with a piercing needle to be coordinated to the top and lower the seal lid from the top, and hold the sealing lid with the piercing needle that pierces the seal rubber. The present invention relates to an improvement in an opening device for a blood collection tube which is opened and then opened by pulling upward a seal lid held by a puncture needle by an ascending operation of an opening device.

  A blood collection tube used for biochemical examination of blood is usually a sealing lid made of a laminate film with the upper end opening of a tube molded into a test tube made of glass or plastic, with the inside of the tube evacuated to vacuum. It is made as an airtight seal.

  As shown in FIG. 1, the sealing lid A for sealing the upper end opening of the blood collection tube is a thin disk-shaped film sheet made of a laminate film whose peripheral portion is bonded to the lip of the upper end opening of the blood collection tube B. a and a projecting seal rubber b adhered to be placed on the center of the upper surface of the film sheet a.

  The protruding seal rubber b provided on the seal lid A is used when blood collected from a patient is injected into the blood collection tube B. When transferring blood into a blood collection tube from a container that contains collected blood or from a syringe that has collected blood by aspirating the patient's blood, the needle tip of a hollow needle connected to the container, or the needle of a syringe needle By sticking the tip into the seal rubber b, the container or the syringe is communicated with the blood collection tube, and the negative pressure in the blood collection tube B that is degassed by vacuum and held at a negative pressure is regulated by the negative pressure. A certain amount of blood sample is used to flow into the blood collection tube B.

  When the blood sample sealed in the blood collection tube B in the processing step described above is inspected with an automatic inspection device, the seal rubber b is cut off the seal lid A into a ring shape by a plugging device as a pretreatment for the inspection. When the upper end opening of the blood collection tube B is opened, the seal lid cut off by the opening blade of the opening device is cut to the position where the opening end of the holding needle provided in the opening device is inserted into the sealing rubber b. It is also used to hold the role.

  When testing a blood sample in the blood collection tube with the blood collection tube set in the automatic inspection device, remove the blood from the blood collection tube by removing the seal cover and opening the blood sample in the blood collection tube. It is done by pumping up with a pouring device.

  The blood collection tube opening device is for opening the seal lid of the blood collection tube set in the automatic inspection device.

  The blood collection tube opening device is usually configured as a handy type. As shown in FIG. 2, this is an opening for mounting a plug opening means (opener) 2 comprising a stopper blade 20 for opening the seal lid and a holding needle 21 for holding the seal lid on the bottom surface. When the stopper head 1 is formed into a cylindrical grip handle shape that can be grasped by a palm to form a stopper device and the seal lid A of the blood collection tube B is opened, the stopper device 1 is opened with one hand. A seal that seals the upper end opening of the blood collection tube B that holds the holding needle 21 and the opening blade 20 of the opener 2 that are held at the bottom of the lower end and is held and fixed by the other hand. It stabs against the lid A, and in that state, it rotates around the holding needle 21 stabbed into the seal rubber b of the seal lid A, and the film a portion of the seal lid A is cut into a ring shape by the opening blade 20, and in this state The handle which is the opening head 1 is pulled up from the needle and stabbed into the holding needle 21 Is of the form unplugging is to be performed by raising disconnect the plug opening piece A 'of the seal cover A held Te.

  The reason why the sealing lid A is cut by the opening blade 20 by rotating the opening head (grip handle) is based on the assumption that the opening blade 20 is formed as a thin blade. This is because the opening blade 20 is usually formed in a crown shape surrounding the holding needle 21 as shown in FIG. When the opening blade 20 is formed in a crown shape in this way, it does not need to be rotated, and is simply cut into a ring shape by being inserted into the seal lid A.

Japanese Patent Laid-Open No. 06-242120

  As described above, the problem to be solved in the present invention is that, as described above, the opening of the seal lid of the blood collection tube is opened one by one for each blood collection tube taken out from the blood collection tube rack. In testing centers that perform blood and sample testing, the opening and closing device for the blood vessel seal lid, which required a lot of time and labor for the plugging process, hindered the testing efficiency, is moved up and down to the fuselage. Opening device for blood collection tubes that can open a plurality of blood collection tubes at the same time by arranging a plurality of plug-opening means (plug-opening devices) equipped with opening blades and holding needles on the opening head that can be mounted freely. It is in the point to constitute as.

The present invention proposes the following invention means as means for solving the above-mentioned problems.
The capping head that can be mounted on the upper part of the machine so that it can be moved up and down is equipped with a number of capping means (capping devices) that open the seal cover of the blood collection tube in a ring. The opening head is moved up and down by the opening head raising / lowering means that is installed in the aircraft, and is moved up and down to the opened opening operation standby position and the lowered opening operation position. A rack support member that can detachably set the blood collection tube rack that supports the blood collection tube in a state where the supported blood collection tubes are arranged in a horizontal row is mounted on a rack table that is movable back and forth with respect to the machine body. And the rack support member provided on the rack table has a blood collection rack setting position in which the rack support member has advanced from directly below the opening head, and an opening position in which the rack table moves backward from the setting position to face directly below the opening head. And switch to each Equipped with a rack table moving means for moving back and forth so as to be positioned to constitute a blood collection tube opening device, whereby a plurality of blood collection tubes can be opened at the same time, and a plurality of opened blood vessels have been opened. The present invention proposes an invention means in which the blood collection tubes can be taken out at the same time.
In addition to this, the opening head raising / lowering means in the blood collection tube opening device of the first invention means described above can be rotated by a predetermined angle from the vertical posture forward and backward with the lever shaft as a fulcrum. This is composed of a combination of an operating lever that is pivotally supported by the lever and a link mechanism that changes the rotary motion of the lever shaft by operating this operating lever to a reciprocating motion up and down by crank motion. When the lever moves forward, the capping head is lowered to perform the capping operation, and when the operation lever is moved backward, the capping head is raised to return to the standby position. Proposed second invention means as a manual type of simple mechanism to perform,
Further, in the opening head of the blood collection tube opening device of the first invention means described above, the upper end of the blood collection tube is provided below each opener installed in parallel with the bottom of the opening head. The upper end of the blood collection tube is pressed and suspended from the main body so as to freely move up and down with respect to the main body of the opening head. The upper end of the blood collection tube is urged downward by a spring. A funnel with the inner wall surface inverted so that the upper end of the blood collection tube to be set is guided to the position facing the opener at the part of the holding member facing the opener provided in parallel with the opener head. A third opening that holds the upper end of the blood collection tube at a position facing the opener by the opening of the blood collection tube upper end pressing member when the opening head is lowered to perform the opening operation. Invented means,
Further, in the above-described blood collection tube opening device of the first invention means, when the opening head is lowered, the opening table lifting and lowering means and the rack table moving means are moved backward, and the opening head is raised. Then, the rack table is linked and linked so as to move forward, and linked to the rack table that moves back and forth by the rack table moving means, or linked to the dust table that moves back and forth with respect to the machine body. Equipped with a dust container that opens upward to receive the opening piece pushed out by the opening piece pushing rod, and the dust table and the rack table are operated by lowering the opening head and moving the rack table backward. When the table rack support member is located directly under the opening head, the dust container on the top of the dust table is opened. When the rack support member of the rack table moves away from the position directly below the opening head and moves to the retracted position when the opening head moves up and the rack table moves forward, the upper position of the dust table The dust container is moved to a position just below the opening head and is linked to be positioned at that position, so that the opening operation of the opening piece performed at the end of the lifting operation of the opening head is opened. A fourth invention means is proposed in which the dust container on the upper surface of the dust table is positioned just below the stopper head.

According to the present invention, it is possible to simultaneously open a plurality of blood collection tubes at the same time, and it is possible to set a plurality of blood collection tubes together with a rack in an inspection apparatus. Particularly in an examination center where a large number of specimens gather, a plurality of blood collection tubes can be opened at a time, thereby greatly improving examination efficiency.
Further, according to the second invention means, the structure of the opening / closing head lifting / lowering means is simplified, and it can be stably and reliably operated over a long period of time.
In addition, according to the third invention means, the upper end of the blood collection tube can be securely held, so that it is possible to perform reliable and reliable opening of the seal lid.
Further, according to the fourth invention means, when the dust container provided on the upper surface of the dust table is positioned directly below the opening head, the opening piece pushing rod is lowered by the raising operation of the opening head. Since the extrusion operation of the opening piece ends, the collection of the opening piece by the dust container is made accurate.

It is a perspective view of the state where the blood collection tube of the blood collection tube rack was supported in parallel. It is a side view of a conventional opening head provided with a blood collection tube sealed with a sealing lid and an opening device for opening the sealing lid. It is the perspective view seen from the right upper direction of the capping device of the blood collection tube which enforces the present invention. It is a perspective view of the left diagonal upper view of an apparatus same as the above. It is a rear view of an apparatus same as the above. It is an enlarged front view of the opening head part of the same apparatus. It is an expansion vertical side view of the stopper opening part of an apparatus same as the above. The operation lever of the same device is rotated backward to raise the opening head lifting means, and the dust table is placed so that the rack table moving means occupies the position where the rack table is retracted forward from directly under the opening head. It is a vertical side view in the state which act | operated the advance movement so that may be located just under a plug opening head. When the operating lever of the same device is rotated forward, the opening / closing head lifting / lowering means is lowered, and the rack table moving means is moved backward so that the rack table is located directly under the opening head. FIG. Side view of the same device with the right machine wall removed as seen from the right side, with the operating lever rotated to the end position for rearward rotation and the rack table advanced to the blood collection rack set position FIG. FIG. 10 is a side view of the above apparatus in the right-hand state in the same state as above, in which the operation lever is rotated forward from the state of FIG. 10 and the rack table that moves backward is moved to a position just below the opening head. It is a side view explaining a state when it stops at the position. FIG. 12 is a right side view of the above-mentioned apparatus in the same state as in the above-mentioned state, and the operation lever further rotates from the state of FIG. 11 to the end position of the forward rotation, the dust table retracts to the standby position, and the opening head is It is a side view explaining the state which performed the opening operation | movement. It is a top view at the time of the state which exists in the end of the backward operation | movement of a rack table moving means of an apparatus same as the above. It is a perspective view at the time of the same state of a rack table moving means same as the above of an apparatus same as the above. It is a top view at the time of the state which exists in the end of advance operation | movement of a rack table moving means same as the above of an apparatus same as the above. It is a perspective view at the time of the same state of a rack table moving means same as the above of an apparatus same as the above. It is explanatory drawing of the opening operation | movement which rotates an operation lever of an apparatus same as the above, and demonstrates the interlocking relationship between the rotation operation of an operation lever, the raising / lowering operation of the opening head linked to this, and the movement operation of a rack table. It is an explanatory view, the operating lever occupies the standby position where the opening head is raised by rotating to the end of the backward rotation, the rack table is at the end position of the forward operation, and the rack support on the upper surface side of the rack table The member occupies the rack setting position when setting the blood collection tube rack, and shows a standby state of the opening operation in which the dust container that can be supported on the dust table faces directly under the opening head. In the state where the operation handle is rotated from the state of FIG. 17-1 to the middle of the forward rotation, the opening head that operates in conjunction with the occupying position occupies the opening start position, and the rack table that operates in conjunction with retraction is provided. It shows a state in which it stops at the position just below the opening head after colliding with the regulating member. From the state of FIG. 17-2, the operation handle is further rotated forward to the end position of the forward rotation, and the opening head further lowered to the opening start position. The opening operation is ended by the operation, and the dust table is retracted to the retracted position, leaving the rack table whose movement is stopped at that position. From the state shown in FIG. 17-3 after the operation lever is turned to the end of the forward rotation and the cutout operation of the seal lid of the blood collection tube for opening the plug is completed, the operation lever is rotated halfway to the rear. The dust table, which has been moved to the retracted position while stretching the spring, moves forward while hitting the rack table, with the spring retracted, leaving the rack table in the position directly below the opening head. However, when the upper end of the blood collection tube set in the stopped blood collection tube rack is pressed with the blood collection tube pressing member, the initial range of the ascending operation is raised and stuck into the holding needle of the opener A state where the opening piece of the lid is pulled out from the blood collection tube is shown. 17-4 shows the state when the operation lever is rotated from the state of FIG. 17-4 to the end of the backward rotation, and the dust table that has been advanced to the position where it hits the rack table pushes the rack table to the retracted position, Instead of the rack table, it occupies a position directly below the opening head, and the opening head further rises along the lifting guide to occupy the end position of the lifting operation, and relatively lowers during this lifting operation. It shows a state in which the opening piece held by the holding needle is pushed downward by the operation of the opening piece pushing rod and is dropped into the dust container located below the opening head. It is a vertical side view of the principal part of another Example apparatus of this invention means, Comprising: It is a vertical side view at the time of the state where the opening head raised to the end of the raising operation. It is a vertical side view of the main part of the above-described embodiment device, and is a vertical side view in a state where the lowering operation is performed until the plug opening head comes into contact with the push rod support member that supports the push rod. . It is a vertical side view of the same main part of the embodiment device as described above, and the opening head performs the lowering operation together with the pushing rod integrally engaged by the lowering operation in the previous period, and the opening device of the bottom of the opening head. It is a vertical side view at the time of the state which cut | disconnected the sealing lid with the opening blade.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  3 to 5 show an apparatus according to an embodiment of the present invention. FIG. 3 is a right perspective view of the apparatus, FIG. 4 is a left perspective view, and FIG. 5 is a front view. .

  In these drawings, w is a machine body, 1 is an opening head that is supported by the machine body w so that it can be raised and lowered, 4 is an opening / closing means for raising and lowering the opening head 1, and 5 is a machine body that can be moved back and forth. A dust table, 6 is a rack table mounted on the body w so as to move back and forth following the dust table 5, 7 is a rack table moving means for moving the rack table 6 and the dust table 5 back and forth, and 8 is a rack table. A driving means for driving the moving means 7 is shown.

  The machine body w is assembled in a box shape by a machine base d formed in a base plate shape and left and right machine walls e · e rising from both the left and right sides of the machine base d.

  As shown in FIG. 5, the opening head 1 is formed in a block shape that is long left and right, and the left and right ends are moved up and down by guide means g provided inside the left and right machine walls e and e of the machine body w. It is supported on the airframe w as possible.

  As shown in FIG. 5, the guide means g is located on the inner side of the right side wall e of the machine body w, as shown in FIG. 5, and the right side wall e (the left side wall in FIG. 5 of the rear view). A guide support member 10 is fixedly installed on the inner surface of the guide shaft, and a vertical shaft rod-shaped guide rod 11 is fixedly supported on the inner surface of the guide rod 11, and the right end portion of the main portion 1a of the opening head 1 (see FIG. 5) In the guide means provided on the inner side of the left side wall e (the right side wall in FIG. 5) of the machine body w, the fitting hole (not shown) provided in the left end portion is slidably fitted. Is a guide holder 12 which is fixedly suspended by a guide rod 12 formed in the shape of a longitudinal shaft rod at the left end portion of the main portion 1a of the opening head 1 and is slidably guided by being fitted to the guide rod 12. 13 is fixedly installed on the inner surface of the machine wall e.

  As shown in FIGS. 6 and 7, the opening head 1 includes an opening blade 20 and a holding needle 21 formed in a cylindrical shape or a crown shape on the bottom side of the main portion 1a thereof. 2) are arranged in multiple rows and assembled so as to be aligned in a horizontal row. The plug-opening means may be configured appropriately as long as it can be opened by cutting the seal lid A into a ring shape.

  The opening device 2 as each opening means to be installed at the bottom of the opening head 1 is integrated with the main body 1a of the opening head 1 via an assembly member in the opening blade 20 thereof. In the holding needle 21, the upper end side is supported on the lower end side of the needle support bar 22, and the upper end side of the needle support bar 22 is positioned above the main body 1 a of the opening head 1. Thus, the holding needle 21 is connected to and supported by the needle top plate 1b connected to the main portion 1a by the connecting member. It is comprised in the form located in the attitude | position protruded below from the lower edge of this, and it raises / lowers by the raising / lowering operation | movement of the opening head 1.

  In each of the opening devices 2 mounted in parallel with the opening head 1, the opening blade 20 was cut off from the sealing lid generated when the sealing lid A of the blood collection tube B was cut into a ring shape and opened. An opening piece pushing member (opening piece pushing rod) 3 for pushing out and removing the opening piece A ′ from the holding needle 21 is incorporated.

  As shown in FIG. 7, the opening piece pushing rod 3 is formed in a cylindrical shape surrounding the holding needle 21, and extends the inner space of the opening blade 20 to the main portion 1 a of the opening head 1. The upper end on the upper end side protruding upward from the main body 1a of the opening head 1 is slidably fitted into the shaft hole formed so as to move up and down with respect to the opening head 1. And connected to and supported by an extrusion rod top plate 3a disposed in a space between the upper surface of the main body portion 1a and the lower surface of the needle top plate 1b disposed above the main body portion 1a. By locking the top plate 3a to the machine body w, the opening piece pushing rod 3 is locked to the machine body w. In addition, a spring 32 that pushes upward is installed between the opening piece pushing rod 3 and the upper surface of the opening head 1.

  Accordingly, in FIG. 7, when the opening head 1 is raised, the opening piece pushing rod 3 is lowered relative to the opening head 1 and is held by being stuck into the holding needle 21. The stopper piece A ′ is pushed downward and acts to be removed from the holding needle 21. When the opening head 1 is lowered, the opening head 1 is lifted with respect to the opening head 1, and the lower end is pulled up to the upper part in the opening blade 20 of the opening device 2, and the opening blade 20 is opened. Ensure that there is no hindrance to the plug action.

  The opening head 1 is further equipped with a blood collection tube upper end press 1c. As shown in FIG. 7, the blood collection tube upper end presser 1 c suspends the blood collection tube B on the blood collection tube rack C and sets it at a position below the opening head 1. When opening the seal lid A of the blood vessel B, the upper end of the set blood collection tube B is correctly positioned at the lower position of the opener 2, and is parallel to the lower surface of the opener head 1. The main body 1a of the opening head 1 is vertically moved by a hanging rod 14 formed in the shape of an opposed horizontally long base and slidably provided vertically on the left and right ends of the main body 1a of the opening head 1. It is movably supported and is held at a lowered position in a normal state by a spring material 15 provided between the lower surface of the main portion 1a and the upper end presser tube 1c. An opening into which the cylindrical opening blade 20 of the opening device 2 is fitted into a portion of the upper end presser 1c of the blood collection tube facing each of the opening devices 2 installed in parallel to the opening head 1. 16 are respectively opened, and the mouth edges of the openings 16 are formed in a reverse funnel-shaped inclined surface 16a whose diameter is gradually expanded downward as shown in FIG.

  Thus, as described above, when the blood collection tube B is supported on the blood collection tube rack C and set at a position just below the opening head 1 and is opened by the opening device 2 by the lowering operation of the opening head, the collection is performed. The upper end of the blood collection tube B that is supported by the blood vessel rack C and flutters is pressed from above by the upper end presser 1c of the blood collection tube that descends together with the opening head 1, and the spring 15 is raised and contracted by the pressing. In the meantime, the upper end of the blood collection tube B is guided by the inclined surface 16a on the lower surface side of the opening 16 to a position correctly facing the opener 2, and acts to hold the position at that position.

  The opening / closing head lifting / lowering means 4 for raising / lowering the opening / closing head 1 is moved forward and backward with pivots 40 and 40 pivotally supported on the top of the machine body w on the left and right machine walls e and e of the machine body w. An operation lever 41 mounted to rotate, a short link 42 whose base end side is connected to the rotation shaft 40 and whose distal end side rotates about the rotation shaft 40, and a distal end that serves as a rotation end of the short link 42 The upper end side of the long link 44 is connected to the upper surface of the unplugging head 1 by connecting the upper end side to the side via a connecting shaft 43 and the long link 44 moving up and down by the rotation of the short link 42. When the short link 42, which is a rotation link, is rotated by the rotation operation of the operation lever 41, the long link 44, which is a lift link, moves up and down and is connected via the connection member 45. Ascending the opening head 1 It is configured to operate.

  In this example, the opening / closing head lifting / lowering means including the link mechanism that is operated by the rotation operation of the operation lever 41 has a rotation range of the operation lever 41 that rotates back and forth with the rotation shaft 40 as a fulcrum. Is controlled by a front stopper s1 installed between the front edge portions of the left and right machine walls e and e, and the left and right machine walls e and e when rotated backward. By being restricted by the rear stopper s2 that is installed between the parts approaching the rear side, the angle range of about 180 degrees around the rotation shaft 40 is limited.

  As shown in FIG. 9, the link mechanism interlockingly connected to the rotation shaft 40 has a short rotation link 42 in the state where the operation lever 41 is rotated to the front rotation end position. It is set so as to be suspended in a substantially vertical posture from 40 and is connected to the rotary shaft 40. From the state shown in FIG. 9, the operation lever 41 is moved to the rear stopper s2 as shown in FIG. When it is turned to the end position of the rearward turning that collides, the turning shaft 40 turns substantially half a circle, and the short turning link 42 is brought into a state of standing upright from the turning shaft 40, and this turning link 42. When the lifting / lowering link 44 connected to the lifting / lowering link 44 is lifted and the plug opening head 1 connected to the lifting / lowering link 44 is lifted, and the operation lever 41 is rotated forward from the state shown in FIG. It is a posture that hangs down from the rotating shaft 40 Te, the elevating link 44 is lowered, so that lowering operating the unplugging head 1.

  In this example, the rotation shaft 40 serving as the starting shaft of the link mechanism 4a is divided into left and right, and each of the rotation shafts 40 divided into two is pivotally supported on the left and right machine walls e and e. Is a case where a single rotation shaft is used, and the link 42 of the rotation link connected to the rotation shaft 40 is a pair of links assembled to each of the rotation shafts 40 divided into two, The link 44 of the elevating link is formed in the shape of a long blade that spans between the pair of links 42, 42, but is formed in the same manner as a normal elevating link, and a pair of rotating links are formed on the left and right. In some cases, each of the links 42 is connected.

  Further, in this example, the operation lever 41 is attached and mounted to a blade-like attachment plate 46 that spans between the links 42 and 42 of the pair of rotation links on the left and right sides. The left and right rotation links 42 are rotated in synchronization by the rotation operation of the lever 41, but may be directly connected to the rotation shaft 40. In this embodiment, the opening / closing head lifting / lowering means is described as a manual type in which the opening / closing head 1 is moved up and down by manual operation of the operation lever 41. May be configured as a power type that moves up and down.

  The rack table 6 is for setting the blood collection tube rack C on which the blood collection tube B is supported at a position directly below the opening head 1 of the machine body w, and is formed in a horizontally long flat box shape in the left-right direction. The left and right end portions are fitted on moving paths formed on both sides of the machine base d, so that they can be moved back and forth with respect to the machine body w so as to be supported on the machine base d.

  The rack table 6 is provided with a rack support member 60 on the upper surface side thereof for detachably supporting the blood collection tube rack C. The rack support member 60 is formed in a case shape that is long on the left and right to accommodate the blood collection tube rack C, is slidably mounted on the upper surface of the rack table 6, and left and right end portions are provided on the rack table 6. It is pivotally supported by the support shaft 61 so that it can be rotated forward about the support shaft 61. The rack support member 60 is rotated and moved forward. The blood vessel rack C can be loaded. Then, after inserting the blood collection tube rack C, it is rotated backward about the support shaft 61 and returned to the state of being placed on the upper surface of the rack table 6, and in this state, by the operation of the rack table moving means 7, The rack table 6 is moved so that the blood collection tube rack C supported by the rack support member 60 is set at a position just below the opening head 1.

  The dust table 5 was removed when the opening piece A ′ generated when the sealing lid A of the blood collection tube B was opened was pushed out from the holding needle 21 of the opening device 2 and removed. A dust container 50 for collecting the opening piece A ′ as dust is positioned at a position directly below the opening head 1 and, like the rack table 6 described above, is formed in a horizontally long flat box shape. It is formed and is supported on the upper surface of the machine base d so that it can be moved back and forth. On the base surface of the upper surface, pillars 51 are erected on both left and right parts, and a hopper that opens upward on the pillar 51. A dust storage 50 formed in a shape is mounted.

  As shown in FIGS. 13 and 14, the dust table 5 is located behind the rack table 6 and is supported on the upper surface of the machine base d so as to be in parallel with the rack table 6 in the front-rear direction. The left end side is slidably fitted to a guide shaft 52 fixed to the machine base d as in the previous rack table 6, and the right end side of the machine base d as shown in the rear view of FIG. The guide rail 53 provided on the inner surface of the side wall is fitted via a guide roller 54, and is supported so as to be movable back and forth with respect to the machine body w. The rack table 6 is connected via a spring 55 that expands and contracts.

  The rack table moving means 7 is means / apparatus for moving the rack table 6 and the dust table 5 back and forth. In this example, the spur gear 70 which is long before and after being integrally assembled to the side end of the dust table 5 is used. And a pinion 71 meshed with the spur gear 70 and pivotally supported on the machine body w. When the pinion 71 is driven to rotate and operated to feed the spur gear 70 backward, the spur gear 70 is driven. The dust table 5 that is integrally connected to the dust table 5 moves rearward, and the rack table 6 that is connected to the dust table 5 by the spring 55 is pulled by the spring 55 so that it moves backward. At this time, when the rack table 6 moves to a position just below the opening head 1, the rack table 6 collides with a regulating member (not shown) provided in the moving path and moves backward. Since the sealed, a state where only the dust table 5 is shown in FIG. 15 and FIG. 16 moves backward while stretching the spring 55. Further, from this state, when the pinion 71 is driven and rotated reversely and the spur gear 70 is pulled back, first, only the dust table 5 moves forward, and when the dust table 5 hits the rack table 6, The table 6 is moved forward together so as to push out the table 6 so that the state shown in FIGS. 13 and 14 is obtained. Here, in the state shown in FIGS. 15 and 16, the rack table 6 is positioned and set at a position directly below the opening head 1, and the dust table 5 is retracted away from the position immediately below the opening head 1. 13 and FIG. 14, the dust table 5 is replaced with the rack table 6 and set at a position directly under the opening head 1, and the rack table 5 is opened with the opening head. This is a state that occupies a standby position that is distant from the position immediately below 1.

  The drive means 8 is a drive means for operating the rack table moving means 7, and in this embodiment, a conduction pulley 80 attached to the rotating shaft 72 of the pinion 71 of the rack table moving means 7 supported on the machine body w, It is constituted by a conduction device comprising a conduction pulley 81 provided on the rotation shaft 40 of the operation lever 41 for driving the plug opening / lowering means 4 and a conduction belt 82 wound around these conduction pulleys 80 and 81. The rack table moving means 7 is driven by driving and rotating the pinion 71 with the rotational power of the rotating shaft 40 that is rotated by manually rotating the operation lever 41.

  As shown in FIG. 17A, in this means, a conduction device for conductively connecting the rotation shaft 40 of the operation lever 41 of the opening head raising / lowering means 4 and the rotation shaft 72 of the pinion 71 of the rack table moving means 7 is connected. The operation lever 41 is rotated to the end position of the backward rotation, whereby the elevating link 44 of the opening head raising / lowering means 4 and the opening head 1 connected thereto are located at the upper limit of the ascending operation and interlocked with this. From the state in which the moving rack table 6 and dust table 5 are moved to the end of the forward operation, the operation lever 41 is moved to the forward rotation end position as shown in FIG. When the conduction pulley 81 provided on the rotation shaft 40 is rotated halfway, the conduction pulley 80 provided on the rotation shaft 72 of the pinion 71 is rotated halfway in the circumferential direction, and the pinion 71 is rotated halfway. Thus, it is set to cooperative relation of the state where the spur gear 70 is sent out to the end position of the backward movement.

The apparatus according to this embodiment operates and functions as follows.
When the operation lever 41 is rotated to the end of the rearward rotation, the opening head 1 rises to the end position of the lifting operation, and a dust container 50 supported on the dust table 5 is located immediately below the opening head 1. The rack table 6 on which the rack supporting member 60 is supported occupies a position away from the lower position of the opening head. Therefore, by setting the blood collection tube rack C on which the blood collection tube B is supported on the rack support member 60 that is supported on the rack table 6, a standby state shown in FIG.

  When the operation lever 41 is rotated forward from this standby state, the opening head 1 is lowered and the rack table 6 and the dust table 5 are moved backward according to the rotation angle amount. When the lever 41 is rotated to the middle position shown in FIG. 17-2, the rack table 6 is stopped by the rearward movement being restricted by the restricting member, positioned at a position directly below the plug opening head 1, and opened. The stopper head 1 is lowered to a position where the upper end of the blood collection tube B supported on the blood collection tube rack C supported by the rack support member 60 of the rack table 6 is held by the upper end of the blood collection tube 1c to be mounted thereon. It becomes a state.

  Next, when the operation lever 41 rotated to the intermediate position is further rotated forward, the opening blade 20 of the opening device 2 is positioned by further lowering of the opening head 1. By opening into the upper end of B and opening the plug, the dust table 5 moves backward while extending the spring 55, and the forward rotation of the operation lever 41 abuts against the stopper s to become the end. When the opening operation is completed, the state shown in FIG. 17-3 is obtained.

  When the operation lever 41 is rotated backward from the state shown in FIG. 17-3, the plug opening head 1 is raised and the rack table 6 and the dust table 5 are moved forward. , The rack table 6 is not directly connected to the spur gear 70 of the rack table moving means 7, so that the rack table 6 moves from the position just below the opening head 1. Instead, only the dust table 5 connected to the spur gear 70 stays in that position and moves forward while contracting the spring 55 and comes into contact with the rack table 6. The upper end of the blood collection tube B that does not move from the positioned position is held by the upper end of the blood collection tube 1 because the upper end of the blood collection tube 1c suspended below the main body 1a is urged downward by the spring 15. The stopper blade 20 of the stopper 2 on the lower surface of the main portion 1a is moved upward from the upper end of the blood collection tube B with the stopper piece A 'held by the holding needle 21. It will come to pick up.

  When the operation lever 41 rotated to the intermediate position is further rotated rearward, the dust table 5 that has been in contact with the rack table 6 moves forward while pushing the rack table 6, and the operation lever 41 is rotated backward. When it comes into contact with the stopper s1 and reaches the end, it comes to be positioned directly below the stopper head 1 and the stopper head 1 pushes the blood collection tube upper end press 1c downward by the bias of the spring 15. In the state held at the raised position, it rises to the limit position of the raising operation and becomes the state shown in FIG. 17-5. Then, during this ascending operation, the unplugging piece pushing rod 3 incorporated into the unplugging device 2 so as to move up and down with respect to the unplugging head 1 and locked to the machine body w is attached to the unplugging head 1. By lowering relatively, the opening piece A ′ that is pierced and held by the holding needle 21 of the opening device 2 and is pulled up together with the opening device 2 is pushed downward from the holding needle 21 so as to be removed. Then, the removed plug piece A ′ is collected in the dust container 50 located below the plug head 1.

  Next, FIG. 18 to FIG. 20 show another embodiment. This embodiment is a modified example of the opening piece pushing means of the blood collection tube opening apparatus of the first invention means described above.

  FIG. 18 is a longitudinal front view in which a part of the capping head portion in the left-right direction is omitted in the capping device for blood collection tubes. In the figure, 1a is a main part of the capping head 1, and 1b is a main part 1a. A needle top plate 2 which is arranged at a distance above the upper surface and is integrally connected to the main body portion 1a by a connecting member, and 2 is provided so as to protrude downward on the lower surface side of the main body portion 1a. , 20 is an opening blade of the opening device 2, 21 is a holding needle disposed at the central portion of the opening blade 20, 22 is a needle support bar that supports the holding needle 21, 3 is a holding needle 21 and a needle support An opening piece extrusion rod 3a, which is formed into a cylindrical shape surrounding the rod 22 and incorporated in the opening head 1 so as to move up and down the lumen of the opening blade 20 of the opening device 2, 3a is the opening piece extrusion rod 3 An extruding rod top plate that is connected to the upper end of the extruding rod and supports the extruding rod 3. A spring provided between the upper surface of the push rod and the push rod top plate 3a so as to raise the push rod top plate 3a relative to the main portion 1a, and s is a machine body for preventing the push rod top plate 3a from moving upward. A stopper 1c provided at w is below the lower surface of the main body 1a, and the upper end presser of the blood collection tube suspended from the main body 1a so as to be movable up and down. A hanging rod for suspending the blood vessel upper end retainer 1c, 15 is a spring for pushing the blood collection tube upper end retainer 1c downward, 12 is a guide rod assembled to the capping head 1, and 13 is a guide rod 12 that is slidably fitted up and down. Guide receivers provided in the machine body w to guide the vertical movement of the stopper head 1, and these are basically the same as those of the stopper of the blood collection tube according to the first embodiment. And Aru.

  However, the locking of the extrusion rod top plate 3a connected to the upper end of the opening piece extrusion rod 3 with respect to the machine body w causes the extrusion rod top plate to collide with the stopper s provided on the machine body w from below. Locking is achieved by preventing upward movement from the position where the stopper s collides with the stopper s. Locking is permitted to allow movement downward from the position where the stopper s collides. The needle top plate 1b that supports the needle 21 is formed with a notch y that allows the stopper s to pass therethrough at a portion corresponding to the stopper s provided on the machine body w, and the opening operation of the opening head 1 is lowered. When the needle top plate 1b is lowered, the needle top plate 1b is lowered to a position below the stopper s, and is brought into contact with the upper surface of the push rod top plate 3a as shown in FIG. Along with the rod top plate 3a, FIG. In that so descends as, it is different from those of Example 1.

  In the second embodiment, the opening piece push-out rod 3 is pushed upward on the upper surface of the main portion 1a of the opening head 1 by the spring 32 so that the push-out rod top plate 3a supporting the opening piece is pushed onto the machine body w. By engaging with the provided stopper s, it is in a state of being locked to the machine body w.

  Therefore, when the opening head 1 is lifted, the opening piece pushing rod 3 does not move as shown in FIG. 18, and only the main portion 1a and the needle top plate 1b of the opening head 1 are lifted. The distance D between the top plate 1b and the push rod top plate 3a is increased. Then, the opening operation of the opening head 1 causes the opening head pushing rod 3 to descend relative to the opening head 1, so that the lower end side of the rod 3 protrudes downward from the opening device 2. (FIG. 18).

  If the opening head 1 is lowered from the state shown in FIG. 18, the opening piece pushing rod 3 does not move during the lowering operation until the needle top plate 1b abuts against the pushing rod top plate 3a. As shown in FIG. 19, the opening head 1 is lifted to the upper portion in the opening device 2.

  When the opening head 1 is further lowered from this state, the needle top plate 1b moves downward through the stopper s while being in contact with the pushing rod top plate 3a. The pushing rod 3 is held in a state where it is pulled into the upper part of the opening device 2, and the opening operation is performed as shown in FIG. Therefore, the opening operation can be performed accurately without being influenced by the incorporated push-out rod 3.

A seal lid A 'opening piece B blood collection tube C blood collection rack D distance a film sheet b seal rubber d machine base e machine wall g guide means s stopper s1 front stopper s2 rear stopper w machine body notch 1 opening head 1a Main body 1b Needle top plate 1c Blood collection tube upper end presser 10 Guide support member 11 12 Guide rod 13 Guide receiver 14 Hanging rod 15 Spring 16 Opening 16a Inclined surface 2 Opening device 20 Opening blade 21 Holding needle 22 Needle support rod 3 Opening Single-extrusion rod 3a Extrusion rod top plate 30 Spring 31 Operation section 32 Spring 4 Opening head lifting means 4a Link mechanism 40 Rotating shaft 41 Operation lever 42 Short link 43 Connection shaft 44 Long link 45 Connection member 46 Mounting plate 5 Dust table 50 Container 51 Post 52 Guide shaft 53 Guide rail 54 Guide roller 55 Spring 6 Racket Table 60 Support member 61 Support shaft 7 Rack table moving means 70 Spur gear 71 Pinion 72 Rotating shaft 8 Driving means 80 81 Conductive pulley 82 Conductive belt

Claims (4)

A cylindrical opening blade (20) and a plug opening piece (A ') which is located at the central portion of the opening blade (20) and is cut from the sealing lid (A) by the opening blade (20). Opening device comprising a holding needle (21) for holding the opening piece (A ') and an opening piece pushing rod (3) for pushing the held opening piece (A') from the holding needle (21) (2), a plug opening head (1) that is constructed by integrally assembling a plurality of the plug openers (2) in parallel in a horizontal row, and the operation waiting position in which the plug opening head (1) is raised. And an opening head raising / lowering means (4) for moving up and down to the lowered opening operation position;
A blood collection rack (C) that is supported in a state where a plurality of blood collection tubes (B) are arranged in a horizontal row, and a state in which the blood collection tube rack (C) supports the blood collection tubes (B) that are supported in a horizontal row. The rack table (6), which is equipped with a rack support member (60) that is detachably set, is supported on the machine base (d) so as to move back and forth, and the rack table (6) is connected to the opening head ( 1) A rack table that is moved forward and backward so as to be located at a position where the blood collection tube rack set is advanced from a position facing directly under 1) and a position where it is retracted from the position where the blood collection tube rack is set directly below the opening head (1). A dust container (50) for collecting the moving piece (7), the plug piece (A ') cut from the seal lid (A) by the opening operation of the plug head (1), and the dust container Mount (50) The dust table (5) that can be moved back and forth with respect to the machine body (w), and the dust table (5) and the rack table (6) are positioned directly below the opening head (1). The dust table (5) is positioned and set at a retracted position away from the position directly below the opening head (1), and the rack table (6) is positioned directly below the opening head (1). When moving forward from the position, the dust table (5) is linked to the rack table (6) and is connected to the opening head (1) so that the dust table (5) is set to a position just below the opening head (1). Opening device of the blood collection tube characterized in that the opening of the sealing lid of the blood collection tube and the collection of the open piece are continuously performed during the raising and lowering operation of the opening head (1) . The opening / closing head lifting / lowering means (4) includes an operation lever (41) capable of rotating a predetermined angle from the vertical position to the front and rear with a rotation shaft (40) pivotally supported on the machine body (w) as a fulcrum, and its operation. It has a manual type, which consist of a combination of levers forward and link mechanism in conjunction with the rotation operation of the rearward raise or lower the unplugging head (1) of (41) (4a), and the operation The lever (41) is a dust equipped with a rack table (6) equipped with a rack support member (60) that can be movably supported on the moving path provided at the lower part of the machine body (w) and a dust container (50). to table (5), the front and rear turnable operation of the operating lever (41), and wherein the Ah isosamples in conjunction cooperative to move the rack table (6) and dust table (5) forward or backward Contract Cap removal device of the blood collection tube to claim 1. The opening head (1) is always biased and supported downward by the spring material (15) , and when the opening head (1) is lowered, the upper ends of the blood collection tubes arranged in a horizontal row are opened (16). Each of the openers (2) having the blood collection tube upper end pressing members (1c) which are held one by one by the mouth edge and installed in parallel with the openable head (1) (1) When the opening operation is performed, the lowering operation is performed relative to the opening head (1), and when the opening operation is performed, the seal lid (A) is cut off and the holding needle (21) of the opening device (2). unplugging piece held pierced in (a ') a holding pin (21) from the blood collection tube of claim 1, wherein Rukoto not incorporate unplugging piece push rod (3) to push downwardly Opening device.   A dust table having an interlockingly connected dust table that moves in conjunction with the rack table, the dust table having an open upper portion for receiving the opening piece opened by the opening means immediately below the opening head. When the rack support member of the rack table is located directly below the opening head, the dust storage is retracted to a position away from directly below the opening head, and the rack support member extends from directly below the opening head. 2. The apparatus for opening a blood collection tube according to claim 1, wherein the device is positioned directly under the cap opening head in conjunction with the movement when moving forward.

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