WO2003049912A1 - Procede et instrument pour percer un trou dans un materiau mou - Google Patents
Procede et instrument pour percer un trou dans un materiau mou Download PDFInfo
- Publication number
- WO2003049912A1 WO2003049912A1 PCT/JP2002/003743 JP0203743W WO03049912A1 WO 2003049912 A1 WO2003049912 A1 WO 2003049912A1 JP 0203743 W JP0203743 W JP 0203743W WO 03049912 A1 WO03049912 A1 WO 03049912A1
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- WO
- WIPO (PCT)
- Prior art keywords
- soft material
- opening
- cutting
- cutting portion
- tool
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
- B26F1/22—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material to form non-rectilinear cuts, e.g. for tabs
Definitions
- the present invention relates to a tool and a method for opening a soft material, for example, rubber or synthetic rubber material / synthetic resin material.
- the vacuum blood collection tube is sealed with a soft material stopper such as rubber to maintain the vacuum inside.
- a suction nozzle for sucking blood is introduced into the vacuum blood collection tube. If this is done, the suction time will be short, and the time required for one analysis step can be shortened accordingly.
- a large-diameter hole must be opened in the stopper to pass through the large-diameter suction nozzle.
- a hole is made while rotating in the form of a drill, or an opening rod (such as an opening pipe) such as a needle with a sharpened tip is pressed against the stopper to reduce the pressure. He used a punching method to hang and penetrate.
- a method has been proposed in which a plug is opened with a hole rod as thin as possible, for example, a thin pipe-shaped needle such as an injection needle, so as not to generate cutting chips.
- the needle also serves as a suction nozzle as it is.
- the diameter of the suction nozzle must be reduced, there is a problem that it takes time to draw blood, which hinders high-speed analysis, and furthermore, punches out the plug. Since there was no scum, no scum was produced, but due to friction between the needle and a plug made of soft material such as rubber, rounded scum like an eraser scum was generated at all costs.
- the needle was so thin that it bent when inserted into the stopper.
- An object of the present invention is to provide a sample analyzer such as a blood analyzer that does not cause the above-described problems, and to prevent cutting pieces from separating and becoming scum after punching a soft material. It is intended to provide a method for opening a soft material and an opening tool.
- a method for forming a hole in a soft material according to the present invention is a method for forming a hole in a soft material by cutting the soft material and piercing with a hole-opening tool. By leaving the cutting pieces bonded to the material, it is possible to prevent problems caused by cutting pieces separated from the soft material after opening.
- the piercing tool is provided with a first cutting portion and a second cutting portion, and while the piercing tool is pierced through a soft material, the first cutting portion and the second cutting portion provide the piercing tool.
- the soft material is cut, and at the moment the first cut portion penetrates the soft material, the second cut portion is inserted into the soft material.
- the cutting method can be left in a state where the cutting piece is bonded to the soft material after the hole is opened by the simple method of leaving the cutting piece.
- a soft material to be opened using this opening method is used as a stopper for sealing the sample collection tube, and a suction for sucking the sample in the sample collection tube is inserted into a hole of the stopper formed after the opening.
- the opening tool is a cylindrical body
- a cut piece is left in the cylindrical opening tool at the moment when the first cutting portion penetrates the soft material, and the second cutting portion is By pushing the drilling tool so as to penetrate the soft material, the cut piece is removed from the drilling tool at the second cutting part, and the hole drilled by the drilling tool is removed.
- the cutting piece is externally bonded to the soft material.
- the soft material to be opened is a plug that seals the sample collection tube, and after opening, the cylindrical opening tool is connected to the plug body. And a suction nozzle for sucking the sample in the sample collection tube is inserted through a hole in the opening tool. Therefore, the operation time can be reduced by using the suction nozzle as a member that smoothly guides the sample to the sampling tube without leaving the plug device with the plug device, without leaving the plug device. Can be planned.
- the cylindrical hole opening tool is used in the sample collection tube. It may also be used as a suction nozzle for sucking the sample, and after opening the hole, the opening tool may be left in the stopper and used as a suction nozzle. As a result, the operation time can be further reduced, and the number of parts can be reduced.
- the soft material opening tool provided by the present invention opens a soft material by piercing while cutting the soft material.
- the cutting piece is configured to remain bonded to the material.
- the drilling tool has a first cutting portion and a second cutting portion, and pierces a soft material. While passing, the soft material is cut by the first cutting portion and the second cutting portion. At the moment when the first cutting portion penetrates the soft material, the second cutting portion is cut by the soft material. By leaving in the material, a cutting piece is left in a state of being bonded to the soft material after opening.
- the second cutting portion may be provided at a plurality of locations.
- a first structure that can be considered as an opening tool including such a first cutting portion and a second cutting portion is that the first cutting portion has a sharp cross section, and the second cutting portion is This is a structure having a shape with a lower cutting force than one cutting portion.
- the first cutting portion having the sharp cross section may be formed at the opening edge of the tip when the opening tool is a tubular body having an opening at the tip. And when opening a soft material by such a cylindrical opening tool, after the first cutting portion penetrates the soft material, the first cutting portion further has a low cutting force remaining in the soft material.
- the two cutting parts push the drilling tool so as to penetrate the soft material, and the second cutting part pushes out and removes a cutting piece from the drilling tool.
- a penetrating hole is formed in the soft material without leaving a cutting piece inside, while the cutting piece removed from the cylindrical opening tool is formed by the second cutting portion. Even when the material penetrates the soft material, the cutting piece remains in the soft material without being separated due to the low cutting force.
- the opening tool When the opening tool is used to open a plug made of a soft material that seals the sample collection tube, after opening, the opening tool is left in the stopper and the sample in the sample collection tube is removed. It may be used as a guide member passing through a suction nozzle for suction. Thereby, the step of pulling out the opening tool from the stopper can be omitted.
- the opening tool left in the stopper after opening the sample is used to aspirate the sample in the sample collection tube. It may be used as a suction nozzle.
- the process of inserting the suction nozzle can be omitted, and the number of parts can be reduced.
- the first cutting portion having the acute angle cross section and the second cutting portion having a low cutting force may be arranged at substantially the same position in the piercing direction. As described above, the first cut portion and the second cut portion arranged as described above also cause the second cut portion to remain in the soft material at the moment when the first cut portion penetrates the soft material. Is possible.
- the first cutting portion secures an excellent cutting force, and has a structure in which the cutting force of the second cutting portion is reduced, such that the surface of the first cutting portion is smooth, and the surface of the second cutting portion is not smooth. As a continuous surface You may.
- the hole tool is formed of a cylindrical body or a solid rod, it may be provided on the outer peripheral edge of the tip.
- the second structure that can be considered as an opening tool in which the second cut portion remains in the soft material at the moment when the second cut portion penetrates through the second cut portion is located at a position retracted from the first cut portion in the piercing direction.
- the structure has a cutting part.
- the difference in position between the two cutting portions in the piercing direction indicates that the second cutting portion still remains in the soft material at the moment when the first cutting portion penetrates the soft material in the actual opening process.
- the phenomenon occurs, that is, it appears as a difference in cutting time between the two cutting parts.
- Such a second cutting portion can be easily configured by a concave portion or a notch formed by cutting out the first cutting portion on the rear side in the penetrating direction.
- the first cutting portion may be provided on the outer peripheral edge of the tip.
- the second cutting portion may be configured by a concave portion or a cut as described above.
- the tip of the cylindrical body or the rod is inclined with respect to the plane perpendicular to the axis, and of the outer peripheral edge of the inclined tip, a first cutting portion is provided at a front portion in the piercing direction and a second cutting portion is provided at a rear portion. A part may be provided. Furthermore, the rear part of such an inclined tip may be cut out to form a second cutting part.
- the second structure that can be considered as such a hole opening tool can also be configured together with the structure of the above-described first hole opening tool.
- a first cutting portion having a sharp cross section is formed at the distal end edge of an opening tool made of a cylindrical body or a solid rod, and a part of the distal end edge is cut out to form a concave portion.
- the concave portion is formed as a second cut portion by making the shape inferior in cutting force to one cut portion.
- One of the uses of the opening tool is to use a soft material for sealing the sampling tube so that a suction nozzle for sucking the sample sealed in the sampling tube is introduced into the sampling tube. It may be used to open a stopper made of a material.
- the sample collection tube may be used as a collection tube for a medical sample and used in a medical examination device.
- the collection tube for the medical sample may be a vacuum blood collection tube
- the medical examination device may be a blood analyzer. If the hole opening tool of the present invention is used for such a purpose, it is possible to provide a convenient device which ensures high analysis accuracy and does not require maintenance for processing of a cutting piece accompanying cutting of a plug.
- FIG. 1 is an overall perspective view of a fully automatic glucose measuring device, which is one embodiment of a blood test device, which is an embodiment of the device employing the present invention.
- FIG. 2 is a liquid path diagram of an STD solution, a washing solution, a buffer solution, a waste solution, and the like in the fully automatic glucose measuring device of FIG.
- FIG. 3 is a side cross-sectional view of the vacuum blood collection tube 1 sealed with a stopper 2 made of a soft material.
- FIG. 4 is a side cross-sectional view showing a state where the vacuum blood collection tube 1 is fitted into a holder 7 having a multi-bleed blood collection needle 6.
- FIG. 5 is a side cross-sectional view showing a state where the suction nozzle 3 is introduced into the vacuum blood collection tube 1 through the open pipe 5 penetrated through the stopper 2.
- FIG. 6 shows a side view and a perspective view of the distal end portion of the hole opening tool according to various embodiments A to G of the present invention.
- FIG. 7 is a perspective view of a distal end portion of the apertured pipe 5 according to the embodiment B in FIG. 8 (1) to 8 (5) are side sectional views of the plug 2 showing a process of opening the plug 2 with the opening tool, particularly the opening pipe 5 according to the embodiment B.
- FIG. 1 shows a fully automatic glucose measuring device for detecting a glucose concentration in blood by whole blood measurement, among blood testing devices which implement the soft material opening tool and the opening method of the present invention.
- FIG. This fully automatic glucose measuring device includes a main body 10, a sample supply unit 11, and a bottle unit 12.
- the main body 10 is provided with a print unit 14 for printing out the analyzed glucose measurement value of the individual, a display panel 13 for displaying the glucose measurement value on a panel, and the like.
- bottles such as an STD solution bottle 18, a washing solution bottle 15, a buffer solution bottle 16, and a drainage bottle 17 are juxtaposed.
- a plurality of vacuum blood collection tubes 1 are set in parallel on a rack, and each vacuum blood collection tube 1 is transferred to a nozzle unit 19 provided at the center of the sample supply unit 11.
- the nozzle unit 19 finishes sampling the blood in one vacuum blood collection tube 1, the blood is taken out and the next vacuum blood collection tube 1 is carried into the nozzle unit 19.
- the nozzle unit 19 pierces an open pipe 5 through a stopper 2 made of a soft material such as rubber which closes each vacuum blood collection tube 1, and inserts a suction nozzle 3 into this to collect the vacuum blood collection tube 1. Introduced into 1 and sample blood 4 as a sample in each vacuum blood collection tube 1.
- the present invention particularly relates to a structure of an opening tool for opening the plug 2 such as the opening pipe 5 and a method of piercing the plug 2 with the opening tool.
- Fig. 2 shows a schematic diagram of the fully automatic glucose measuring device shown in Fig. 1, and shows the flow path of the liquid from the STD solution bottle 18, the washing solution bottle 15, the buffer solution bottle 16 and the drainage bottle 17. Is illustrated.
- the fully automatic glucose measuring apparatus illustrated in the present embodiment includes a bottle unit 12, a nozzle unit 19, a pump chassis 20, a reaction detecting unit 22 formed inside the main body 10, and a debugger. It is composed of a debug base 21 on which 21 a is arranged and a degasser 23.
- the bottle unit 12 is provided with the STD solution bottle 18, the washing solution bottle 15, the buffer solution bottle 16, and the drainage bottle 17, and various types of components in the pump chassis 20 are provided.
- the liquid in these bottles is supplied to each part via pumps and valves.
- the cleaning liquid is a liquid for cleaning blood stains adhered to the suction nozzle 3 described later, and is an aqueous solution obtained by adding a low-concentration surfactant to distilled water or ion-exchanged water.
- the STD solution (internal standard solution for glucose) is an aqueous glucose solution having a constant concentration, and is used for performing automatic calibration of the device (calibration).
- the buffer is a buffer for reacting the GOD-immobilized enzyme with glucose.
- the buffer pump 27 is a pump for sucking and supplying the buffer in the buffer bottle 16
- the cleaning pump 28 is a pump for supplying the cleaning liquid in the bottle 15 to the suction nozzle 3.
- the three-liquid pump 29 is a pump that supplies the STD liquid in the STD liquid bottle 18 into a washing tank 25 described later.
- the drainage pump 30 is a pump that discharges the drained liquid after the analysis into the drainage bottle 17.
- the nozzle pump 31 arranged in the nozzle unit 19 sucks the blood in the vacuum blood collection tube 1 with the suction nozzle 3 when introduced into the vacuum blood collection tube 1 and sucks it into the reaction tank 24 described later. This is for controlling the air inside the nozzle 3, and is also used for taking the cleaning liquid into and out of the suction nozzle 3.
- the cleaning liquid introduced into the suction nozzle 3 cleans blood stains and is collected into a waste liquid bottle 17 by an air pump 33.
- Opening / closing solenoid valves are arranged in the suction / discharge paths of these pumps 27 to 31, respectively.
- IN means the inlet of the pipe
- NO means "normally open valve”
- NC means "normally closed valve”.
- a reaction tank 24 and a washing tank 25 are arranged in the reaction detection section 22.
- the reaction tank 24 is filled with STD solution or blood glucose diluted to a certain concentration with a buffer solution, and contains hydrogen peroxide for measuring glucose in the blood by an averometry method.
- An electrode and a measurement cell 24a for the GOD-immobilized enzyme membrane are provided.
- the buffer solution from the buffer bottle 16 is supplied via a degasser (gas venting device) 23, a debubbler 21 a (defoaming device) in the debabuler base 21, and an opening / closing solenoid valve 28.
- the degasser 23 pre-heats the buffer to turn dissolved oxygen in the buffer into bubbles, and the deburrer 21a removes the bubbles.
- the STD solution is supplied from the STD bottle 18 to the STD tank 25 a in the cleaning tank 25.
- the suction nozzle 3 sucking the blood from the vacuum blood collection tube 1 is sent to the washing tank 25 to wash excess blood attached to the outside of the suction nozzle 3, and comes out of the plug 2 mixed in the blood.
- the cuttings are cleaned to remove scum (rubber scum, etc.). Further, the suction nozzle 3 is immersed in the STD tank 25a provided in the washing tank 25, and the concentration of glucose attached to the outside is corrected.
- a precisely measured amount of blood from the blood extracted from the suction nozzle 3 is supplied to the reaction tank 24 as a specimen, and the blood is supplied to the reaction tank 24 using the GOD-immobilized enzyme membrane and the hydrogen peroxide electrode.
- the glucose value is measured, and the measurement result is printed on the print unit 14 shown in FIG. 1 or displayed on the display panel 13.
- the mixed sample and the buffer solution after the reaction in the reaction tank 24 are discharged to the on-off solenoid valve 26 by opening the on-off solenoid valve 9. Further, the drainage from the washing tank 25 is discharged to the opening / closing solenoid valve 26 via the filter 8. These liquids are discharged to the opening / closing solenoid valve 32 by opening the opening / closing solenoid valve 26, and merged with the liquid discharged from the debugger 21 a by the opening / closing solenoid valve 32 to form the opening / closing solenoid valve. By opening 32, it is discharged to the drain.
- the present invention is applied to such a fully automatic glucose measuring device as a method and a tool for opening a through-hole for introducing a suction nozzle 3 into a vacuum blood collection tube 1 in a plug body 2 with a nozzle unit 19.
- the blood sample of the specimen extracted by the suction nozzle 3 is mixed with the cutting pieces generated when the stopper 2 is opened as a scum to be analyzed in the analysis tank 24.
- the vacuum blood collection tube 1 containing the blood 4 (see FIG. 5) is closed by a stopper 2 made of a soft material such as rubber. As shown in Fig. 1, multiple units are juxtaposed. The material and shape of the vacuum blood collection tube 1 and the plug 2 made of soft material are strictly defined in order to sample blood from the human body.
- this vacuum blood collection tube 1 Prior to blood collection, this vacuum blood collection tube 1 was used as a multi-bleed blood collection needle 6 as shown in Fig. 4. It is inserted into a holder 17 having a blood sampler.
- the inside of the vacuum blood collection tube 1 needs to be set to a predetermined vacuum state according to a required blood collection amount. Therefore, when the vacuum blood collection tube 1 is delivered to a hospital or an inspection site, the inside thereof is kept in a predetermined vacuum state, and the vacuum state is kept tightly closed by the stopper 2. Also, inside the vacuum blood collection tube 1, a necessary chemical substance such as a necessary blood coagulation inhibitor is placed beforehand.
- the cover covering the multi-bleed blood collection needle 6 shown in FIG. 4 is removed, and the multi-bleed blood collection needle 6 is inserted into the blood vessel of the blood collection subject's arm. Is done.
- the vacuum blood collection tube 1 for which a predetermined blood collection amount has been determined is passed through the inside of the holder 17 at the rear end of the multi-bleed blood collection needle 6 while being sealed with the stopper 2.
- the rear end of the multi-bleed blood collection needle 6 penetrates the plug 2, and the blood 4 from the blood vessel passes through the multi-bleed blood collection needle 6 and blows out into the vacuum blood collection tube 1.
- the multi-bleed blood collection needle 6 is punctured in the blood vessel and the vacuum blood collection tube 1 provided with the plug 2 is replaced with another one.
- the vacuum blood collection tube 1 that has finished collecting blood in this way is placed in the sample supply unit 11 of the fully automatic glucose measuring device as described above, and the blood is suctioned by the suction nozzle 3 at the nozzle unit 19. .
- the multi-bleed blood collection needle 6 passes through the plug 2 at the time of blood collection, and then comes out of the plug 2 when removing the vacuum blood collection tube 1 from the holder 17. However, the hole formed by the penetration of the multi-bleed blood collection needle 6 returns to the original closed state after the multi-bleed blood collection needle 6 is pulled out due to the elastic restoring force of the soft material of the stopper 2, so that the vacuum collection by the stopper 2 The closed state of the blood 4 in the blood vessel 1 is maintained.
- Fig. 5 shows that the open pipe 5 is inserted into the stopper 2 made of a soft material that seals the vacuum blood collection tube 1 containing the blood 4, and the suction nozzle 3 is guided to the vacuum blood collection tube 1 through the open pipe 5.
- the blood 4 sampled inside the vacuum blood collection tube 1 is sucked by the suction nozzle 3 set in such a state and supplied to the reaction tank 24.
- the opening pipe 5 is formed by punching, that is, by cutting the plug 2 in a columnar shape, thereby opening a through hole having a diameter for inserting and guiding the suction pipe 3. This punching When the column-shaped cuttings (scraps) that are generated during separation are separated from the plug, the suction nozzle
- the suction nozzle 3 sucks this together with the blood 4 and is attached to the tip of the suction nozzle 3. If the tip of the opening pipe 5 is in the shape of a drill, fine swarf pieces are dispersed and enter the suction nozzle 3, and are mixed with the blood 4 in the suction nozzle 3. With the suction nozzle 3 kept in such a state, the blood 4 and the scum are transported to the washing tank 25 and the reaction tank 24.
- the suction nozzle 3 drops dripping scum together with the blood 4, and the scum is sucked into the reaction tank 24 by the suction force of the pump in the pump chassis 20, resulting in uneven sample stirring.
- the buffer volume of the volume of the scum is insufficient, and an accurate predetermined volume of the sample is not supplied to the reaction tank 24, so that the optimal dilution ratio of the blood 4 is disturbed.
- the sample is generated in the reaction tank 24 due to the effect of drilling of the plug 2 in the form of a drill, or the effect of the swarf generated by the suction nozzle 3 separated from the scum drawn by the suction nozzle 3.
- the agitation will be non-uniform and erroneous measurements will be detected.
- the apertured pipe 5 may also be used as the suction nozzle 3 itself. That is, the inside of the opening pipe 5 communicates with the nozzle pump 31, and when the opening pipe 5 is pierced into the stopper 2 for piercing, it is used as it is as a suction nozzle.
- the drilling method using the drilling tool according to the present invention does not push and spread the plug 2 and cuts it, instead of drilling and rotating it.
- the friction between the through-hole and the hole-opening tool is reduced, and there is no scum like an eraser due to the friction on the outer periphery, which occurs when pushing and expanding to penetrate. Neither does fine swarf generated when piercing occur.
- a cutting piece (a scrap) a generated when the hollow apertured pipe 5 or the solid apertured rod 50 is opened through the soft material plug 2 is formed.
- the most reliable method is to use a soft material stopper inside the vacuum blood collection tube 1. It is configured so that it remains in a state of hanging from 2.
- an apertured pipe 5 and an apertured rod 50 are configured as shown in A, B, C, D, E, F, and G in FIG.
- the apertured pipe 5 may be a circular pipe as shown by A, B and C in FIG. 6, or a square pipe as shown by D.
- square tubes in addition to square tubes, triangular tubes, pentagonal tubes, A hexagonal tube or the like may be used as long as the cross section is a polygon.
- the drilling tool according to the present invention (the drilling pipe 5 and the drilling rod 50) has a sharp cross-section and a high cutting force at the distal end outer peripheral portion.
- One cutting portion b is formed at the forefront, and a second cutting portion c having a section that is less sharp and has a lower cutting force than the first cutting portion b is formed.
- a to D are formed by forming the second cut portion c at a position retracted from the first cut portion b in the advancing and retreating direction of the hole tool (hole pipe 5). That is, a first cutting portion b is formed on the outer periphery at the forefront of the opening pipe 5, and a cut or a dent is provided from the first cutting portion toward the rear of the opening pipe 5 in the retreating direction.
- the stepped second cut portion c is formed with respect to the first cut portion b.
- the second cutting portion c of A is formed in a U-shape
- the second cutting portion c of B is formed in a square shape
- the second cutting portion c of C is formed in a V-shaped notch.
- the shape of the second cut portion c is not limited to this, and various shapes can be considered.
- the shape of the second cut portion c is not limited to the U-shape as shown in the figure, but may be the shape shown in B or C. Good.
- the first cutting part b at the forefront contacts the plug 2 and pushes the perforated pipe 5 further.
- One cutting portion b bites into the plug 2
- the second cutting portion c contacts the plug 2 and bites into it. That is, the cutting of the plug 2 by the second cutting portion c is delayed more than the cutting of the plug 2 by the first cutting portion b, and the cutting by the first cutting portion b and the second cutting portion c
- the first cutting portion b has just penetrated the plug 2
- the second cutting portion c still remains in the plug 2 due to the time difference between the first cutting portion b and the second cutting portion b.
- the opening pipe 5 is thinner toward the first cutting portion b, which is the most advanced, to secure a sharp cross section of the first cutting portion b.
- the second cutting portion c located in the retreating direction of the apertured pipe 5 from the foremost end is formed in a thicker portion than the foremost end, so that the cutting force is reduced. .
- FIG. 7 shows the tip of the perforated pipe 5 in the embodiment B of this
- FIGS. 8 (1) to 8 (5) show the results using the perforated pipe 5 according to the embodiment B.
- Plug 2 2 shows a hole opening process. The opening process and the state of the punched waste a by the process will be described.
- the first cutting portion b located at the forefront first comes into contact with the plug 2, and then the hole is opened.
- the first cutting portion b bites into the plug 2, and the plug 2 is cut into a substantially cylindrical shape.
- the second cutting part c also bites into the plug 2 behind the first cutting part b.
- the second cutting portion c has a lower cutting force than the first cutting portion b, the plug with which the second cutting portion c is in contact in the process of propelling the plug 2 in the first cutting portion. Since there is no room for the body 2 to escape, the pressure of the second cutting portion c is effectively applied to the inside of the plug 2, and the plug 2 is also cut by the second cutting portion c.
- Fig. 8 (2) shows the moment when the first cutting portion b finishes cutting the plug 2, and at this time, the second cutting portion c is still in the plug 2 and performs cutting. Not finished. From this state, as shown in FIGS. 8 (3) and (4), the apertured pipe 5 is pushed further, and the first cut portion b projects from the plug 2 into the vacuum blood collection tube 1. With respect to the propulsion pressure of the second cutting part c, there is room for the scum a to escape from the inside of the apertured pipe 5 into the vacuum blood collection tube 1. In addition, the cutting force of the second cutting portion c is weak and cannot penetrate the plug 2. Accordingly, in the process of pushing the open pipe 5 as shown in FIGS. 8 (2) to (4), the second cutting portion c cannot cut into the plug 2 to cut it, It merely pushes the substantially cylindrical scrap a remaining in the hole pipe 5 to the outside.
- the remaining blood 4 was heat-treated to kill pathogenic bacteria in the blood and then incinerated as medical waste. Since it is discarded, no trouble occurs even when the scrap a, which is a cutting piece, remains on the lower surface of the plug 2.
- a fully automatic glycohemoglobin measuring device is arranged at the preceding stage of the fully automatic glucose measuring device of the present invention, and two analytical items are simultaneously analyzed in a state where both devices are connected in a bridge.
- a hole is opened in the stopper 2 with an opening pipe 5 for a fully automatic glycohemoglobin measuring device, and then the vacuum blood collection tube 1 moves to the fully automatic glucose measuring device, and The stopper 2 is opened again by the opening pipe 5 of the automatic glucose measuring device.
- the scraps a generated by the respective open holes can be removed from the plug 2. It remains suspended from the plug 2 without being separated.
- the sample supply unit 11 When the vacuum blood collection tube 1 is supplied by the sample supply unit 11 common to both the nozzle units 19 of the fully automatic glucose measuring device and the fully automatic glycohemoglobin measuring device, the sample supply unit 11 The position of the plug 2 with respect to the opening pipes 5 of both nozzle units 19 is shifted by, for example, rocking the rack, and the opening pipe 5 of the subsequent stage is inserted into the through hole formed by the opening pipe 5 of the preceding stage. Avoid that. However, even if the positions of the plugs 2 with respect to both the opening pipes 5 are the same, the opening pipes of the latter stage are drawn into the scraps a that hang down from the stoppers 2 as a result of the opening by the opening pipe 5 of the preceding stage.
- the apertured pipe 5 constituted by the square pipe according to the embodiment D has a diagonally urged tip, and furthermore, the corner of the square pipe is arranged at the foremost end to be a first cutting portion b.
- the first cutting portion b is made sharper to increase the cutting force.
- the open pipes 5 of A to C made of circular pipes may be similarly cut at an oblique end.
- the front portion of the leading edge in the piercing direction may be the first cutting portion b
- the rear portion may be the second preform portion c.
- the rear portion may be cut out as in Example D.
- the second cutting portion c may be used.
- the second cutting portion c is formed on the outermost periphery of the perforated pipe 5 together with the first cutting portion b. That is, the first cutting portion b and the second cutting portion c are formed at the same position in the advancing and retreating direction of the opening pipe 5, and there is a difference in the biting time and the depth with respect to the plug 2.
- the first cutting part b is a smooth surface, and the cutting power of the second cutting part c is lower than that of the first cutting part b, such as by providing irregularities on the surface of the second cutting part c.
- FIG. 1 Even when the plug 2 is opened by the opening pipe 5 of Example E, since the second cut portion c is actually less likely to bite into the plug 2 than the first cut portion b, FIG. At the moment when the first cutting part b has passed through the plug 2 as in 2), the second cutting part c has not yet cut the plug 2 yet, and even if the opening pipe 5 is further pushed forward thereafter However, the second cut portion c cannot penetrate the plug 2 and only pushes out the scrap a remaining in the apertured pipe 5 to the outside as shown in FIGS. 8 (3) to (4). . Therefore, as in the case of the perforated pipes 5 such as A to C having the second cut portion c formed in the forward and backward directions with respect to the first cut portion b as described above, finally, FIG. As shown in), the scum a is removed from the plug 2 and left in a hanging state.
- the perforated pipes 5 such as A to C having the second cut portion c formed in the forward and backward directions with respect to the first cut portion b as
- the embodiment F of FIG. 6 is a solid holed rod 50, which forms a first cutting portion b along the outer periphery of the tip, and partially cuts off the tip to form a stepped second rod.
- the cutting part c is formed. Even when the plug 2 is opened by such a solid opening rod 50, the second cutting portion c cuts the plug 2 at the moment when the first cutting portion b has completely pulled out the plug 2. In this case, it is possible to bring about an operation that the scrap a is left hanging from the plug 2.
- the shape of the second cutting portion c may be various shapes as implemented in the hole pipe 5 as A to C, or As shown in the embodiment E, the second cutting portion c may be formed at the forefront of the hole rod 50 as in the first cutting portion b.
- the aperture bar 50 itself may be a round bar or a square bar (the cross section may be a square shape or another polygonal shape).
- the hole cutting tool may be provided with a plurality of second cutting portions c.
- Example F shows an example in which two V-shaped second cutting portions c shown in Example C are formed in the apertured pipe 5, but the shape of the second cutting portion c may be any shape.
- the second cutting part c may be formed at the forefront of the drilling tool as in the first cutting part b. Further, the number of the second cutting portions c is not limited to two. Further, a plurality of second cutting portions c may be formed in the solid hole rod 50 as well.
- the cutting waste a is plugged by the synergistic action of the difference in the cutting time between the first cutting part b and the second cutting part c and the difference in the cutting force between the two parts.
- the cross section of the second cutting portion c may be made as sharp as the cross section of the first cutting portion b to have the same cutting force.
- the first cutting part b is the first cutting part
- the second cutting part c is the second cutting part. Shall be avoided.
- the cutting member is cut in the direction opposite to the vacuum blood collection tube 1 from the state where the first cutting portion cuts off the plug 2 and the second cutting portion still remains in the plug 2 ( If it is pulled out as shown in the upper part of FIG. 8), there is no possibility that the scrap a is cut by the second cutting portion and separated from the plug 2.
- the present invention is applied to the opening of a stopper made of a soft material such as rubber applied to a vacuum blood collection tube, but the present invention is applied to other medical specimen sample containers, for example, urine collection tubes. It can also be applied, and can contribute to the provision of an analyzer that is convenient and does not require maintenance for processing of cuttings generated from the plug and that ensures high analysis accuracy. Also, for example, when a through-hole for inserting a suction tube into a cap, a lid, a rubber stopper, or the like of a container such as a PET bottle, a laminated tube, a paper pack for storing beverages and other liquids is required. Can also be used. In addition, it can be used for various applications that require such holes.
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002246399A AU2002246399A1 (en) | 2001-12-12 | 2002-04-15 | Method and implement for opening hole in soft material |
JP2003550953A JP4246635B2 (ja) | 2001-12-12 | 2002-04-15 | 軟材料の開孔方法及び開孔用具 |
EP02714579A EP1462227B1 (en) | 2001-12-12 | 2002-04-15 | Method and implement for opening hole in soft material |
AT02714579T ATE493241T1 (de) | 2001-12-12 | 2002-04-15 | Verfahren und gerät zum ausbilden eines lochs in weichem material |
DE60238789T DE60238789D1 (de) | 2001-12-12 | 2002-04-15 | Verfahren und gerät zum ausbilden eines lochs in weichem material |
US10/862,465 US20040260203A1 (en) | 2001-12-12 | 2004-06-08 | Method and implement for opening hole in soft material |
US12/364,989 US7776023B2 (en) | 2001-12-12 | 2009-02-03 | Method and implement for opening hole in soft material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001378266 | 2001-12-12 | ||
JP2001-378266 | 2001-12-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/862,465 Continuation US20040260203A1 (en) | 2001-12-12 | 2004-06-08 | Method and implement for opening hole in soft material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003049912A1 true WO2003049912A1 (fr) | 2003-06-19 |
Family
ID=19186034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/003743 WO2003049912A1 (fr) | 2001-12-12 | 2002-04-15 | Procede et instrument pour percer un trou dans un materiau mou |
Country Status (8)
Country | Link |
---|---|
US (2) | US20040260203A1 (ja) |
EP (1) | EP1462227B1 (ja) |
JP (1) | JP4246635B2 (ja) |
CN (1) | CN100333882C (ja) |
AT (1) | ATE493241T1 (ja) |
AU (1) | AU2002246399A1 (ja) |
DE (1) | DE60238789D1 (ja) |
WO (1) | WO2003049912A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008542689A (ja) * | 2005-05-06 | 2008-11-27 | インストゥルメンテーション ラボラトリー カンパニー | 入れ子式閉チューブサンプリングアセンブリ |
JP2010071648A (ja) * | 2008-09-16 | 2010-04-02 | Hitachi High-Technologies Corp | 自動分析装置 |
Families Citing this family (3)
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JP4781054B2 (ja) * | 2005-09-05 | 2011-09-28 | シスメックス株式会社 | 血液試料吸引装置を備える血液分析装置 |
DE102012101503A1 (de) * | 2012-02-24 | 2013-08-29 | Krones Ag | Entnahmeeinrichtung zur Entnahme von Flüssigkeiten aus Behältnissen |
ES2648130T3 (es) * | 2012-10-19 | 2017-12-28 | Cryovac, Inc. | Aparato y procedimiento de embalaje mediante laminación al vacío de un producto y un producto embalado laminado |
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- 2002-04-15 AU AU2002246399A patent/AU2002246399A1/en not_active Abandoned
- 2002-04-15 EP EP02714579A patent/EP1462227B1/en not_active Expired - Lifetime
- 2002-04-15 DE DE60238789T patent/DE60238789D1/de not_active Expired - Lifetime
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JP2010071648A (ja) * | 2008-09-16 | 2010-04-02 | Hitachi High-Technologies Corp | 自動分析装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1462227A1 (en) | 2004-09-29 |
EP1462227B1 (en) | 2010-12-29 |
ATE493241T1 (de) | 2011-01-15 |
CN100333882C (zh) | 2007-08-29 |
US7776023B2 (en) | 2010-08-17 |
US20090171246A1 (en) | 2009-07-02 |
DE60238789D1 (de) | 2011-02-10 |
US20040260203A1 (en) | 2004-12-23 |
EP1462227A4 (en) | 2008-01-02 |
JPWO2003049912A1 (ja) | 2005-04-21 |
AU2002246399A1 (en) | 2003-06-23 |
JP4246635B2 (ja) | 2009-04-02 |
CN1617790A (zh) | 2005-05-18 |
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