WO2014110887A1 - 一种血片支架、血片支架组件、滤纸干血片打孔机及血片支架在体外诊断试剂中的应用 - Google Patents
一种血片支架、血片支架组件、滤纸干血片打孔机及血片支架在体外诊断试剂中的应用 Download PDFInfo
- Publication number
- WO2014110887A1 WO2014110887A1 PCT/CN2013/076690 CN2013076690W WO2014110887A1 WO 2014110887 A1 WO2014110887 A1 WO 2014110887A1 CN 2013076690 W CN2013076690 W CN 2013076690W WO 2014110887 A1 WO2014110887 A1 WO 2014110887A1
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- WIPO (PCT)
- Prior art keywords
- blood
- substrate
- holder
- filter paper
- groove
- 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
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/16—Cam means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
- B26D5/26—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed wherein control means on the work feed means renders the cutting member operative
- B26D5/28—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed wherein control means on the work feed means renders the cutting member operative the control means being responsive to presence or absence of work
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
- G01N2001/288—Filter punches
Definitions
- the present invention relates to a blood slice holder for supporting individual blood slices, and the like Blood stent and
- the invention relates to a blood plate holder assembly composed of a carrier; the invention further relates to a filter paper dry blood piece punching machine for automatically cutting and clamping a blood sample sheet to a blood piece holder; the invention also relates to a blood collection piece for blood collection
- the stent is used for the detection of in vitro diagnostic reagents using filter paper dried blood samples as test samples, especially for the detection of in vitro diagnostic reagents such as newborn screening and prenatal screening.
- filter paper dried blood tablets for disease detection has been widely used in the field of neonatal disease screening. Because the blood volume of the newborn is small, it is not easy to collect the blood extracting serum for testing, and the filter paper dry blood film method has less blood stasis required for detection, and the specimen is easy to be preserved and transported after the preparation of the specimen, which is beneficial to the dispersion and concentration of the specimen. The advantages of detection and other factors have been recognized by many newborn screening and testing personnel.
- the prepared filter paper dried blood piece is cut into a certain size blood sample by manual use of a punching plier, and the cut blood piece is placed in the micropore reaction. Inside the designated micropores in the plate, the blood in the microwells needs to be removed after the shock reaction is completed.
- Neonatal disease screening is the use of today's advanced quantitative laboratory testing methods, in each of the live births, the discovery of those serious metabolic genetic diseases, in order to achieve early diagnosis, early treatment, so as to avoid neonatal vitality Irreversible damage to the device (brain, liver, kidney, etc.) causes death or delayed development of pediatric growth and development.
- congenital hypoglycemia (CH) and propiophenone Urine (PKU) is the main disease screening for neonatal diseases.
- screening for diseases such as congenital adrenal hyperplasia and glucose-6-phosphate dehydrogenase deficiency has been conducted.
- China's "Mother and Infant Health Care Law" requires at least two screening tests for CH and PKU.
- the recommended methods for screening newborns in China are time-resolved fluorescence immunoassay and fluorescence analysis.
- Prenatal screening is a high-risk pregnant woman who finds certain congenital defects and hereditary disease fetuses from a pregnant population through a simple, economical, and less traumatic test to further confirm the diagnosis.
- Prenatal screening which is part of prenatal diagnostic techniques, helps to improve the efficiency of prenatal diagnosis.
- markers are: PAPP-A (pregnancy-associated plasma protein A), AFP (fetal protein), HCG (human chorionic gonadotropin), Free- ⁇ hCG (human chorionic gonadotropin free beta subunit) , ⁇ ⁇ 3 (free estriol), Inh-A (inhibin A).
- the recommended methods for prenatal screening serological testing in China are enzyme-linked immunosorbent assay, time-resolved fluorescence immunoassay and chemiluminescence. Among them, time-resolved fluorescence immunoassay is the most widely used.
- the technical problem to be solved by the present invention is to provide a blood film which can provide a large number of filter paper dry blood plate support positions and simplify the experimental operation process so that the filter paper dry blood film method can be applied to the experiment for rapid detection. support.
- the invention also provides a blood slice holder assembly capable of realizing automated batch inspection of filter paper dried blood pieces.
- the invention further provides a filter paper dry blood film punching machine capable of automatically cutting and clamping a blood sample paper to a blood sample holder, thereby reducing the labor intensity of manual punching and simplifying the subsequent experimental operation steps.
- the invention further provides a blood sample support for the in vitro diagnostic test using the filter paper dried blood sample as a test sample, and the use of the blood slice support for in vitro diagnostic test, which can simplify the detection procedure, realize automatic detection, and effectively shorten The time required for detection increases the stability, precision and sensitivity of the test results.
- the technical solution of the blood slice stent of the present invention is:
- a blood slice holder comprising a strip-shaped substrate, a plurality of pillars fixed to the front surface of the substrate, a rack disposed on the back surface of the substrate, and a plurality of positioning portions disposed on a side surface of the substrate,
- the positioning portion corresponds to the pillar
- the pillar end portion is a cone, and an annular groove is formed between the cone and the body of the pillar.
- the pillars are arranged equidistantly along the longitudinal direction of the substrate.
- the width of the rack is smaller than the width of the substrate.
- the main body portion of the pillar is tapered or cylindrical.
- the positioning portion is a triangular groove or a curved 1HJ groove or a triangular edge or an arcuate rib.
- the technical solution of the blood slice stent assembly of the present invention is: a blood slice stent assembly, comprising a stent carrier and a blood slice stent mounted on the stent carrier;
- the blood stent comprises a strip substrate and a fixed a plurality of pillars on the front surface of the substrate, the pillar end portion is a cone, and the annular 1HJ slot is disposed between the cone and the main body of the pillar;
- the bracket carrier includes a carrier body and is arranged side by side in parallel a plurality of flat bottom main grooves on the front side of the seat body, one end of the main groove is suspended from the bottom surface thereof and provided with a front buckle, and the other end of the main groove is suspended from the bottom surface thereof to be provided with a tail buckle; Correspondingly embedded in the main groove.
- an inner groove is provided on the bottom surface of each main groove, and the inner 1HJ groove extends in the same direction as the main 1HJ groove, and the back surface of the substrate is provided with a rack, and the rack is hidden in The inner 1HJ slot.
- the front end of the front buckle has an introduction slope; and the two sides of the front buckle have a gap with the long side of the main groove.
- a first holding edge is disposed around the bottom surface of the carrier body perpendicular to the bottom surface, and a second holding edge is disposed around the top surface of the carrier body.
- an inner edge is disposed on an inner side of the first grip edge, and an inner edge of the second grip edge is provided on an inner side of the second grip edge.
- the pillars are arranged equidistantly along a line in the longitudinal direction of the substrate.
- the width of the rack is smaller than the width of the substrate.
- the main body portion of the pillar is tapered or cylindrical.
- the side surface of the substrate is provided with a plurality of positioning portions, and the positioning portions correspond to the pillars.
- the positioning portion is a triangular groove or a curved groove or a triangular edge or an arcuate rib.
- a filter paper dry blood film punching machine of the invention is: a filter paper dry blood film punching machine, which is used for automatically cutting and clamping a blood sample paper on a blood sample support, including a machine with a vertical plate A rotating electric machine is mounted on the vertical plate, and an eccentric wheel and a light shielding plate coaxially rotating with the eccentric wheel are mounted on the rotating electric machine, and a photoelectric switch is arranged on one side of the eccentric wheel, and one end of the eccentric wheel is hinged to the vertical plate and the other end is hinged. a first rocker that is pressed by the eccentric and can be rotated by the rotation of the eccentric wheel.
- the lower end of the free end of the first rocker is pressed against the upper end of the punching upper die, and the lower end of the punching hole is punched and the lower die is punched.
- the upper end is opposite, and the gap between the punching upper mold and the punching lower mold has a gap for placing the blood sample paper to be cut, and the punching lower mold is mounted on the mold base fixed to the vertical plate, and the mold base is opened a through hole for moving the upper mold up and down, a compression spring is disposed between the mold base and the first rocker, and the compression spring is sleeved on the punching mold;
- the free end of the first rocker is also hinged with a vertically disposed upper end of the pull rod, the lower end of the pull rod is hinged with one end of the second rocker, and the other end of the second rocker is connected to a roller bearing through a one-way roller bearing.
- the one-way roller bearing is matched with a gear
- the blood piece holder is located between the punching lower mold and the gear
- the blood sample holder comprises a strip-shaped substrate and is fixed at the same a plurality of pillars on the front surface of the substrate, a rack disposed on the back surface of the substrate, a tip end portion of the pillar is a cone, and an annular 1HJ groove is disposed between the cone and the main body of the pillar;
- a rack meshes with the gear.
- the pillars are arranged equidistantly along a line in the longitudinal direction of the substrate.
- the width of the rack is smaller than the width of the substrate.
- the main body portion of the pillar is tapered or cylindrical.
- a plurality of positioning portions are provided on the side of the substrate, and the positioning portion corresponds to the pillar.
- the positioning portion is a triangular groove or a curved 1HJ groove or a triangular edge or an arcuate rib.
- a guiding copper sleeve is installed in the through hole of the die holder for the upper and lower punching holes of the punching die, and the punching upper die is The guiding copper sleeve moves up and down.
- the initial position of the eccentric wheel is a certain angle deviating from the highest point in the counterclockwise direction, and the eccentric wheel is rotated in the counterclockwise direction.
- the initial position of the eccentric wheel is less than 45° from the highest point in the counterclockwise direction.
- the outer surface of the free end of the first rocker is provided with a pressing block, and is provided to pass through the free end of the first rocker and the pressure block A bolt for pressing the top of the punched upper die.
- the upper end of the pull rod is further connected with a tension spring which is mounted on the vertical plate and vertically disposed above the pull rod.
- the technical solution for the application of the blood slice stent in the in vitro diagnostic reagent provided by the present invention is as follows: The following steps are included:
- the blood slice holder in the step (1) comprises: a strip-shaped substrate, a plurality of pillars fixed to the front surface of the substrate, the end portion of the pillar is a cone, and the cone and the body of the pillar Ring 1HJ between The groove, the filter paper dry blood film puncher draws a blood piece from the filter paper dried blood piece and inserts the blood piece into the annular 1HJ groove of the blood piece holder.
- the pillars of the blood piece holder are arranged equidistantly along the longitudinal direction of the substrate.
- the back surface of the substrate is provided with a rack, and the width of the rack is smaller than the width of the substrate.
- the main portion of the column of the blood piece holder is tapered or cylindrical.
- a plurality of positioning portions are provided on the side of the substrate, and the positioning portion corresponds to the pillar.
- the positioning portion of the blood piece holder is a triangular groove or a curved 1HJ groove or a triangular edge or an arcuate rib.
- the in vitro diagnostic reagent detection method in the step (2) is a time-resolved fluorescence immunoassay, a chemiluminescence method, an enzyme-linked immunosorbent assay. Or fluorescence analysis.
- the invention has the beneficial effects that: in the technical solution, the front surface of the substrate of the blood piece holder is provided with a plurality of pillars, and the pillars are provided with annular grooves, and then driven by gears of corresponding equipment (see the filter paper dry blood film punching machine of the invention)
- the rack in the blood piece bracket pushes the blood piece bracket to drive the strut to move stepwise in the corresponding blood-cutting card loading device, realizes the step-type automatic walking position, and the corresponding device automatically cuts the blood piece, and then one by one ⁇ ⁇ Installed in the annular groove provided by the pillar of the blood sample holder to fix the blood card clamping.
- the positioning part on the side of the substrate is docked with the corresponding parts of the device to achieve precise positioning, ensuring smooth progress of the automatic card loading process, avoiding cumbersome manual operations and simplifying the blood card clamping process.
- Each of the individual cut filter paper dried blood pieces is stuck at the pillar of the blood sample holder, so as to facilitate the subsequent experimental test of the blood piece of a blood piece support, and accelerate the inspection process.
- the single blood piece holder embedded with the filter paper dried blood piece can be integrally assembled to facilitate manual operation and instrument operation. Automated and fast detection.
- the filter paper dry blood plate punching machine of the invention can automatically cut the blood sample paper into a suitable shape and size, and then insert it into the pillar of the blood sample support and fit in the annular groove, and the blood sample support is completed in the blood sample paper. After the piece is inserted, it will move forward one pillar position to cut and jam the next blood sample paper, thereby reducing the labor intensity of manual punching and simplifying the subsequent experimental operation steps.
- the application of the blood slice stent of the invention in the in vitro diagnostic reagent provides an in vitro diagnostic detection method for simplifying the detection procedure and realizing the detection automation, and the prepared filter paper dried blood slice is cut with the existing method using the punching forceps.
- the formation of a certain size of blood, and then the cut blood into the microporous reaction plate in the specified micropores not only reduces the hand pain caused by long-term manual use of punch pliers, even the hand
- the deformity reduces the unstable factors such as sample de-hole and misalignment caused by blood flakes when manually punching, and effectively shortens the time required for detection, improves the stability, precision and sensitivity of the test results, and can be widely used.
- FIG. 1 is a schematic view showing the forward structure of an embodiment of a blood slice holder according to the present invention.
- Figure 2 is a plan view of the blood piece holder shown in Figure 1.
- Figure 3 is a schematic illustration of the forward structure of an embodiment of a blood slice holder with a blood piece.
- FIG. 4 is a schematic perspective view of an embodiment of a blood piece stent assembly of the present invention.
- Figure 5 is a schematic view showing the forward structure of a blood sample holder carrier in the embodiment of the blood piece holder assembly of the present invention.
- Fig. 6 is a cross-sectional view showing the A-A cross section of the blood sample holder carrier shown in Fig. 5.
- Figure 7 is a partial enlarged view of the B area of Figure 6.
- Fig. 8 is a perspective view showing the structure of the blood sample holder carrier shown in Fig. 5.
- Figure 9 is a partial enlarged view of the C area of Figure 8.
- Fig. 10 is a front view showing the structure of the filter paper dry blood film punching machine of the present invention.
- Figure 11 is a side elevational view showing the embodiment of the filter paper dry blood film punching machine of the present invention.
- Figure 12 is a stroke view of the eccentric rotation in the embodiment of Figure 10.
- Figure 13 is a method and a routine application of the blood slice stent of the present invention in an in vitro diagnostic reagent
- Fig. 14 is a graph showing the comparison of the concentration of phenylalanine in the sample of the newborn filter paper by the method of using the blood piece stent of the present invention in an in vitro diagnostic reagent and the conventional detection method.
- a blood piece holder of the present invention comprises a strip-shaped (flat-plate) substrate 10 , a plurality of pillars 12 fixed to the front surface of the substrate 10 , and a rack 18 on the back surface of the substrate 10, a plurality of positioning portions 22 disposed on a side surface of the substrate 10, the positioning portion 22 corresponding to the pillar 12, and a tip portion of the pillar 12 is a cone 15 .
- An annular groove 16 is defined between the cone 15 and the body of the strut 12 .
- the front surface of the substrate 10 of the blood sample holder is provided with a plurality of pillars 12, and the pillars 12 are provided with annular grooves 16 and then passed through the gears of the corresponding equipment (see the filter paper dry blood film punching machine described in the following embodiment).
- the gear 141 in FIG. 11 drives the rack in the blood piece holder to push the blood piece holder to drive the strut 12 to move stepwise in the corresponding blood-sampling device, thereby implementing step-by-step automatic walking, corresponding
- the device automatically cuts the blood piece and punches the cut blood piece, and then fixes it one by one in the annular groove provided by the pillar of the blood piece support to realize the automation of the blood piece card loading.
- the positioning portion 22 on the side of the substrate is docked with the corresponding components of the device to achieve precise positioning, ensuring smooth progress of the automatic card loading process, avoiding cumbersome manual operations, and simplifying the blood card loading process.
- Each of the individual cut filter paper dried blood pieces is stuck at the pillar of the blood sample holder, so that the subsequent experimental inspection of the blood piece of one blood piece holder can be performed simultaneously, and the inspection process is accelerated.
- the blood piece is inserted by the cone 15 of the strut 12 and the blood piece is clamped to the annular groove 16 to be fixed, and then driven by the rack 18 under the corresponding gear drive, so that the dried blood piece can be punched one by one after ⁇ 6.
- the step of the step-type blood specimen holder can be mechanized and automated, so that the individual blood pieces supported by the blood piece holder can be simultaneously tested and tested.
- the annular groove 16 allows the blood piece to be fixed to the post 12 without falling off.
- the pillars 12 are arranged equidistantly along the longitudinal direction of the substrate, so that the blood slices can be advanced step by step in an equidistant manner, and the distance of each advancement is uniform, which facilitates the operation of the device, so that the blood cartridge is loaded. Process automation is successfully implemented.
- the width of the rack 18 is smaller than the width of the substrate, so that both sides of the substrate can be engaged and positioned with the device to ensure smooth and reliable movement and accurate positioning.
- the main portion of the struts 12 is tapered or cylindrical, and is self-smooth and easy to snap into the blood piece, and the structure of the shape is more robust and more secure.
- the positioning portion 22 is a triangular groove or an arcuate groove, correspondingly positioned in contact with the wedge-shaped or cylindrical surface to form a precise positioning, and the positioning of the blood piece clamping process is ensured.
- the triangular groove and the wedge body are positioned more accurately, but the wedge body is easy to damage or scratch the substrate, damage the triangular groove, and enlarge the triangular groove, resulting in inaccurate positioning in the later stage.
- the curved groove is positioned with lower accuracy, but the risk of damage is lower and the service life is slightly longer.
- the positioning portion 22 is a triangular rib or an arcuate rib, and correspondingly the triangular groove or the curved groove is provided for the device to cooperate with the positioning.
- a blood slice holder assembly of the present invention comprises a holder carrier 28 and a blood piece holder 25 mounted on the holder carrier; 25 includes a strip-shaped substrate 10, and a plurality of pillars 12 fixed to the front surface of the substrate 10.
- the end portion of the pillar 12 is a cone 15, and the cone 15 and the body of the pillar 12 are provided with an annular recess.
- Slot 16 The bracket carrier 28 includes a carrier body 30 and a plurality of flat bottom main grooves 33 arranged side by side in parallel on the front surface of the carrier body 30. One end of the main groove 33 is suspended from the bottom surface thereof and is provided with a front buckle 36.
- the other end of the main groove 33 is suspended from the bottom surface thereof to be provided with a tail buckle 39.
- the substrate 10 is correspondingly embedded in the main groove 33.
- the blood film holder carrier is provided with a main groove 33, and the main groove spacing is consistent with the micropore reaction plate spacing in the detection experiment, so that the spacing of the blood piece holder loading is consistent, which facilitates the positioning of the automatic device.
- the blood piece holder is locked in the main groove 33, and is blocked by the front undercut 36 and the tail clasp 39 at both ends of the main groove 33, thereby ensuring that the blood piece holder does not fall off during the operation, and the experiment process is avoided. accident.
- the blood piece holder assembly combined with the blood piece holder carrier and the blood piece holder can be used to integrate a single blood piece holder embedded with the filter paper dried blood piece, which is convenient for manual and instrument operation, and is convenient for automation and rapid detection. .
- each main groove 33 is provided with an inner groove 35
- the inner groove 35 extends in the same direction as the main groove 33
- the back surface of the substrate is provided with a rack 18, and the rack 18 is hidden in The inner groove 35.
- the bracket carrier of the slot can carry the blood slice bracket without the back rack, directly increase the depth of the main groove 33, and can also load the blood slice bracket with the back rack, and the space provided in the inner groove can protect the rack.
- the rack while avoiding the deformation caused by the overall installation of the blood piece holder, the blood piece holder has a rack to automate the blood piece installation.
- the front surface of the substrate 10 of the single blood piece holder is provided with a plurality of pillars 12, and the pillars 12 are provided with annular grooves 16 and then passed through corresponding equipment (see the filter paper dried blood shown in Fig. 10, Fig. 11).
- the gear of the puncher (see Figure 10, gear 141 shown in Figure 11) drives the rack in the blood plate holder to push the blood plate bracket to drive the strut 12 to step in the corresponding blood-sampling device.
- the corresponding device automatically cuts the blood piece and punches the cut blood piece, and then fixes it one by one in the annular groove provided by the pillar of the blood piece holder, thereby realizing Automated blood cartridge loading.
- Each of the individual cut filter paper dried blood pieces is stuck at the struts of the blood sample holder, so that the subsequent experimental inspection of the blood piece of one blood piece holder can be performed simultaneously, and the inspection process is accelerated.
- the cone 15 of the strut 12 is inserted and the blood piece is clamped in the ring 1HJ slot 16 to be fixedly mounted on the bracket carrier.
- One bracket carrier can carry hundreds of blood pieces, so that the individual pieces supported by the blood piece holder are supported.
- the blood film can be tested and tested simultaneously, and the automation can be improved to improve the efficiency of the detection.
- the annular groove 16 allows the blood piece to be fixed to the post 12 without falling off.
- one end of the blood sample holder 25 is first embedded with a tail button 39, and the front end of the front button 36 has an introduction slope 37 for guiding the remaining end of the blood sample holder 25 to be inserted into the main groove 33.
- the bottom surface of the carrier body 30 is perpendicular to the bottom surface, and the first holding edge 32 is defined.
- the first holding edge 32 encloses a bottom cavity for the device to be loaded and space is reserved.
- the seat blood film support carrier
- the first holding edge 32 can also support the body of the support carrier body 30, avoiding the displacement caused by the deformation of the carrier body.
- the first holding edge 32 can play a role of positioning and connecting with the device when the blood piece is loaded.
- the top surface of the carrier body 30 is provided
- the second holding edge 31 facilitates the hand-held bracket carrier 28, and also facilitates clamping of the bracket carrier 28 during operation of the device.
- a positioning portion is also provided to prevent the device from causing vibration misalignment.
- the first gripping edge and the second gripping edge are combined as an integral gripping edge to further improve the gripping effect, and at the same time reduce the deformation of the gripping edge and improve the positioning effect.
- the inner side of the first holding edge 32 is provided with a concave edge 52
- the inner side of the second holding edge 31 is provided with an inner protruding edge 51 which cooperates with the inner concave edge to facilitate the two brackets.
- the blocks 28 are superimposed on each other to save space, and at the same time, it is convenient for the equipment to be automated and the work efficiency is improved.
- FIG. 1 to FIG. 3 The following is specifically referred to FIG. 1 to FIG. 3.
- the pillars 12 are arranged equidistantly along the longitudinal direction of the substrate, so that the blood slices can be advanced step by step in an equidistant manner, and the distance of each advancement is uniform, which facilitates the operation of the device, so that the blood cartridge is loaded.
- Process automation can be successfully implemented to improve the efficiency of experimental testing.
- the side surface of the substrate 10 is provided with a plurality of positioning portions 22, and the positioning portion 22 corresponds to the pillars 12, and during the clamping process, the positioning portions 22 on the side surfaces of the substrate are made with the corresponding components of the device. Docking for precise positioning ensures smooth automation of the card loading process, avoiding cumbersome manual operations and simplifying the blood cartridge loading process.
- the width of the rack 18 is smaller than the width of the substrate, so that both sides of the substrate can be engaged and positioned with the device to ensure smooth and reliable movement and accurate positioning.
- the main portion of the struts 12 is tapered or cylindrical, and is self-smooth and easy to snap into the blood piece, and the structure of the shape is more robust and more secure.
- the positioning portion 22 is a triangular groove or an arcuate groove, correspondingly positioned in contact with the wedge-shaped or cylindrical surface to form a precise positioning, and the positioning of the blood piece clamping process is ensured.
- the triangular groove and the wedge body are positioned more accurately, but the wedge body is easy to damage or scratch the substrate, damage the triangular groove, and enlarge the triangular groove, resulting in inaccurate positioning in the later stage.
- the curved groove is positioned with lower accuracy, but the risk of damage is lower and the service life is slightly longer.
- the positioning portion may also be a triangular rib or an arcuate rib, and correspondingly the triangular groove or the curved groove is provided for the device to be positioned to cooperate with it.
- an embodiment of a filter paper dry blood film punching machine for automatically cutting a blood sample paper sheet into a blood sample holder 25 and clamping the cone 15 and the pillar 12
- the ring 1HJ slot 16 between the bodies
- the filter paper dry blood film punching machine embodiment comprises a base 1 provided with a vertical plate 110, and the vertical plate 110 is mounted on the vertical plate 110
- the rotary electric machine 112 is mounted with an eccentric wheel 111 and a light shielding plate 113 coaxially rotating with the eccentric wheel 111.
- the eccentric wheel side is provided with a photoelectric switch 114, and the photoelectric switch 114 is used to sense that the light shielding film reaches the same In the position, the rotary electric machine 112 is controlled to be powered off.
- a first rocker 121 having one end hinged to the vertical plate 110 is disposed below the eccentric wheel 111.
- the other end of the first rocker 121 is pressed by the eccentric wheel 111 and can be swung with the rotation of the eccentric wheel 111.
- the first rocker 121 The lower end surface of the free end is in contact with the upper end of the punched upper mold 131 and the punched upper mold 131 is pressed.
- the lower end of the punching upper touch 131 is opposite to the upper end of the punching lower mold 132.
- the punching upper mold 131 and the punching lower mold 132 have a gap between the blood sample sheets to be cut, and the punching lower mold 132 is installed at the same place.
- the compression spring 134 is sleeved outside the punching upper mold 131. Under the joint action of the eccentric wheel 111 and the compression spring 134, the first rocker 121 can be swung up and down.
- the free end of the first rocker 121 is also hinged to the upper end of a vertically disposed pull rod 122, the lower end of the pull rod 122 is hinged to the end of the second rocker 123, and the other end of the second rocker 123 is connected to a one-way roller.
- the shaft 1420 of the bearing 142, the one-way roller bearing 142 is tightly fitted with a gear 141, and the blood sample holder 25 is located between the punched lower mold 132 and the gear 141.
- the blood sample holder 25 includes a strip-shaped substrate 10 a plurality of pillars 12 fixed to the front surface of the substrate 10, a rack 18 disposed on the back surface of the substrate 10 (see Figs.
- a tip portion 15 of the pillar 12 is a cone 15, a cone 15 and a body of the pillar
- An annular groove 16 is provided therebetween, and a rack on the back side of the substrate 10 is engaged with the gear 141.
- the vertical plate 110 is mounted with a pair of gear seats 1410 for mounting the gears 141.
- a guiding copper sleeve 135 is mounted in the through hole of the die holder 133 for the punching upper die 131 to pass up and down, and the punching upper die 131 moves up and down in the guiding copper sleeve 135.
- the initial position of the eccentric wheel 111 is a certain angle from the highest point in the counterclockwise direction, and the eccentric wheel rotates in the counterclockwise direction, and the angle at which the initial position of the eccentric wheel deviates from the highest point in the counterclockwise direction is preferably less than 45. .
- the housing shell is provided with a power source for supplying power to the eccentric rotating motor and a switch for controlling the operation of the rotating motor.
- the rotary motor 112 drives the eccentric wheel 111 to rotate in the counterclockwise direction (the initial position of the eccentric wheel 111 is a certain angle deviating from the highest point in the counterclockwise direction), and the eccentric wheel 111 is pressed.
- a rocker 121 begins to follow With the swinging, the free end of the first rocker 121 presses the punching upper mold 131 downward in the guiding copper sleeve 135, and the blood sample paper placed on the punching lower mold 132 is first cut and continues to move downward.
- the motion continues upward, reaches the highest point position of the eccentric wheel 111, and then moves downward under the pressure of the eccentric wheel 111, when it is mounted coaxially with the eccentric wheel 111 and moves to the position of the photoelectric switch 114 with the moving light shielding plate 113.
- the photoelectric switch 114 senses, and sends a signal, the rotating motor 112 is powered off, relying on The sex continues to rotate a certain position and then stops, returns to the initial position, and completes a motion cycle at this time, and its stroke diagram is as shown in FIG.
- the initial position of the eccentric wheel 111 is a certain angle deviating from the highest point in the counterclockwise direction.
- the punching upper mold 131 cuts the blood sample paper and inserts it into the tip of the pillar 12 of the blood sample holder 25, the compression spring 134 During the upward movement of the elastic force, when the punching upper mold 131 rises to the height corresponding to the initial position, the punching upper mold 131 is completely retracted into the guiding copper mold 35, thus being stuck due to the punching upper mold 131 being cut. The blood sample sheet on the punched upper mold 131 will be pushed out by the guide copper mold 35.
- the punching upper mold 131 also just retreats into the guiding copper mold 35, possibly in the process of disengaging the blood sample sheet. The card is punched on the upper mold 131.
- the one-way roller bearing 142 cannot rotate, and only the gear 141 rotates counterclockwise.
- the blood piece holder 25, which is meshed with the gear 141, can also move horizontally to the left and left during the rotation of the gear 141, and the relevant size is designed such that the rotation of the gear 141 is just such that the blood sample holder 25 can be positioned at the position of one of the pillars 12, That is, one cycle of the eccentric wheel 111 is completed, and the blood piece holder 25 also completes the movement of one position.
- the free end surface of the free end of the first rocker 121 is provided with a pressing block 1210, and is provided with a free end from the free end of the first rocker 121 and the pressing block 1210 for pressing the punching upper die 1 31 bolts 1211 at the top (see Figure 11).
- the free end of the first rocker 121 is pressed against the top end of the punching upper die 1 31 by the bolt 121 1 to achieve up-and-down adjustment of the initial position of the punching upper die 1 31.
- the upper end of the pull rod 122 is further connected with a pull spring 1220 mounted on the vertical plate and disposed above the pull rod.
- the tension spring 1220 can provide a corresponding force during the movement of the pull rod 122 or the movement of the first rocker 121.
- the rotary motion of the same rotating electrical machine 1 12 is converted into two related linear motions by using an eccentric wheel and a rocker plus a gear and a rack mechanism, wherein one linear motion
- the mechanism completes the function of cutting and inserting the blood sample paper onto the blood sample holder 25.
- the other linear motion mechanism completes the horizontal positioning function of the blood sample holder 25, that is, after the blood sample is inserted, the blood sample holder 25 is advanced.
- the blood sample paper is automatically cut into a suitable shape and size, and inserted into the pillar of the blood sample holder, and is inserted in the ring 1HJ groove, thereby reducing the labor intensity of manual punching. , simplify the follow-up experimental operation steps, so that the filter paper dry blood film method can be popularized in other test items.
- the blood piece holder 25 includes a strip-shaped (flat-plate) substrate 10, a plurality of pillars 12 fixed to the front surface of the substrate 10, and a back surface of the substrate 10.
- the rack 18 has a tip end portion 15 which is a cone 15 , and an annular groove 16 is defined between the cone 15 and the main body of the strut 12 .
- the rack 18 on the back side of the substrate 10 is engaged with the gear 141.
- the gear 141 of the blood plate holder is driven by the gear 141 of the filter paper dry film punching machine to push the blood sample support to drive the strut 12 to move stepwise in the corresponding blood-sampling device, thereby realizing the step-type automatic walking.
- the filter paper dry blood film punching machine automatically cuts the blood sample paper and punches the cut blood piece, and then fixes it one by one in the annular groove provided by the pillar of the blood sample support to realize the blood sample card. Automated loading. Each individual cut filter paper dried blood card is stuck in the blood slice holder At the pillar, it is convenient to carry out the experimental inspection operation of the blood piece of one blood piece stent at one time, and accelerate the inspection process.
- the blood piece is inserted by the cone 15 of the strut 12 and the blood piece is clamped to the annular groove 16 to be fixed, and then driven by the rack 18 under the corresponding gear drive, so that the dried blood piece can be punched one by one after ⁇ 6.
- the step of the step-type blood specimen holder can be mechanized and automated, so that the individual blood pieces supported by the blood piece holder can be simultaneously tested and tested.
- the annular groove 16 allows the blood piece to be fixed to the post 12 without falling off.
- the pillars 12 are arranged equidistantly along the longitudinal direction of the substrate, so that the blood slices can be advanced step by step in an equidistant manner, and the distance of each advancement is uniform, which facilitates the operation of the device, so that the blood cartridge is loaded. Process automation is successfully implemented.
- the width of the rack 18 is smaller than the width of the substrate, so that both sides of the substrate can be engaged and positioned with the device to ensure smooth and reliable movement and accurate positioning.
- the main portion of the struts 12 is tapered or cylindrical, and is self-smooth and easy to snap into the blood piece, and the structure of the shape is more robust and more secure.
- a plurality of positioning portions 22 are disposed on the side of the substrate 10, and a plurality of positioning portions 22 are disposed on the side of the substrate 10.
- the positioning portion 22 corresponds to the pillars 12.
- the positioning portion 22 on the side of the substrate is docked with the corresponding components of the device to achieve precise positioning, ensuring smooth progress of the automated card loading process, avoiding cumbersome manual operations and simplifying the blood cartridge loading process.
- the positioning portion 22 is a triangular groove or an arcuate groove, correspondingly positioned in contact with the wedge-shaped or cylindrical surface to form a precise positioning, and the positioning of the blood piece clamping process is ensured.
- the triangular groove and the wedge body are positioned more accurately, but the wedge body is easy to damage or scratch the substrate, damage the triangular groove, and enlarge the triangular groove, resulting in inaccurate positioning in the later stage.
- the curved groove is positioned with lower accuracy, but the risk of damage is lower and the service life is slightly longer.
- the positioning portion 22 is a triangular rib or an arc rib, and correspondingly the triangular groove or the curved groove is disposed on the device to cooperate with the positioning.
- the blood piece holder in the step (1) includes: a strip-shaped substrate 10, a plurality of pillars 12 fixed to the front surface of the substrate 10, and a tip portion of the pillar 12 is a cone 15, the cone An annular groove 16 is disposed between the body 15 and the main body of the pillar, and the filter paper dry blood film puncher draws a blood piece from the filter paper dried blood piece and mounts the blood piece in the annular 1HJ groove 16 of the blood piece holder.
- the filter paper dry blood film punching machine is used in combination with the blood sample holder, and the filter paper dry blood film punching machine takes a blood piece from the filter paper dried blood piece and mounts the blood piece on the pillar 12 of the blood piece holder. Since the blood piece is mounted on the struts 12 of the blood piece holder, the blood piece is suspended in the solution of the microporous reaction plate, and the blood piece in the micro hole does not need to be removed after use, and the blood piece holder is directly attached. Take it out.
- the end portion of the strut 12 of the blood piece holder is a pusher 15.
- the pusher 15 the blood piece which is removed from the filter paper dried blood punching machine from the filter paper dried blood piece is easily attached to the column 12 of the blood piece holder.
- the blood piece holder further includes a rack 18 disposed on the back surface of the substrate 10, and a plurality of positioning portions 22 disposed on the side of the substrate 10.
- the positioning portion 22 corresponds to the strut 12, and an annular groove 16 is provided between the cone 15 at the end portion of the strut 12 and the main body of the strut 12.
- the front surface of the substrate 10 of the blood piece holder is provided with a plurality of pillars 12, and the pillars 12 are provided with annular grooves 16, and then the gears of the blood sample holder are driven by the gears of the filter paper blood film punching machine to push the blood sample holders.
- the driving pillar 12 is stepped and moved in the corresponding filter paper dry blood film punching machine to realize the step type automatic walking position, and the filter paper dry blood film punching machine automatically cuts the blood piece and punches the cut blood piece. Then, one by one, the card is fixed in the annular groove provided by the pillar of the blood sample holder, and the blood card clamping is automated.
- the positioning portion 22 on the side of the substrate is docked with the corresponding components of the filter paper dry blood punching machine to achieve precise positioning, thereby ensuring the smooth process of the automatic card loading process, avoiding cumbersome manual operations and making blood films.
- the card loading process is simplified.
- the individual cut filter paper dried blood tablets are stuck in the pillars of the blood sample support, which facilitates the subsequent experimental test of the blood slice of one blood slice stent at one time, and accelerates the test. Cheng.
- the blood piece is inserted by the cone 15 of the strut 12 and the blood piece is clamped to the annular groove 16 to be fixed, and then driven by the rack 18 under the gear corresponding to the filter paper dry blood piece punching machine, thereby making the blood film
- the pillars of the blood-sliced stent can be stepped into one by one, and the carding process can be mechanized and automated, so that the individual blood slices supported by the blood-slicing stent can be simultaneously tested and tested.
- the annular groove 16 allows the blood piece to be fixed to the post 12 without falling off.
- the pillars 12 are arranged equidistantly along the longitudinal direction of the substrate, so that the blood slices can be advanced step by step in an equidistant manner, and the distance of each advancement is uniform, which facilitates the operation of the device, so that the blood cartridge is loaded. Process automation is successfully implemented.
- the width of the rack 18 is smaller than the width of the substrate, so that both sides of the substrate can be engaged and positioned with the filter paper dry film punching machine to ensure smooth and reliable movement and accurate positioning.
- the main body portion of the strut 12 is tapered or cylindrical, and is self-smooth and easy to be stuck with a blood piece, and the structure of the shape is more robust and more secure.
- the positioning portion 22 is a triangular groove or an arc-shaped groove, correspondingly positioned in contact with the wedge-shaped or cylindrical surface to form a precise positioning, and the positioning of the blood piece clamping process is ensured.
- the triangular groove and the wedge body are positioned more accurately, but the wedge body is easy to damage or scratch the substrate, damage the triangular groove, and enlarge the triangular groove, resulting in inaccurate positioning in the later stage.
- the curved groove is positioned with lower accuracy, but the risk of damage is lower and the service life is slightly longer.
- the positioning portion 22 is a triangular rib or an arcuate rib, and correspondingly the triangular groove or the curved groove is disposed on the device to cooperate with it.
- the blood piece holder is generally made of a hard plastic, and the length of the support of the blood piece holder is generally 10 to 15 mm, and the number of the pillars provided on each of the substrates is generally 8 or 12.
- the back of the substrate is provided with a rack for facilitating the driving of the punching device.
- the blood piece stent is simple to manufacture, is suitable for fully automatic punching equipment, has light weight, low price and good corrosion resistance.
- the present embodiment is divided into an experimental group and a control group, and the experimental group: a neonatal sputum gonadotropin assay kit (time-resolved fluorescence immunoassay), using a blood plate stent for filter paper dry blood sample and experimental reaction, Control group: Neonatal gonadotropin assay kit (time-resolved fluorescence immunoassay)
- the dried blood spot sample was directly injected into the well of the well plate.
- the two experimental procedures were as follows.
- the neonatal gonadotropin assay kit uses the direct reaction of the dried blood spot sample into the microplate well (hereinafter referred to as the direct punching method):
- microporous reaction strips were slowly shaken at room temperature for 5 minutes and then tested on the machine, and the test was completed within 30 minutes.
- the neonatal sputum gonadotropin assay kit uses a blood plate stent to drive the dried blood spot sample into the microplate well (hereinafter referred to as the blood stent method).
- microporous reaction strips were slowly shaken at room temperature for 5 minutes and then tested on the machine, and the test was completed within 30 minutes.
- Measurement accuracy (measured at a concentration of ⁇ /mL
- step 1 is described as follows: "calibration, quality control, punching of the sample to be tested", blood plate support, filter paper, dry blood film
- the sample can be automated by the filter paper dry blood film punching machine; reduce hand pain and even hand deformity caused by long-term manual use of punching pliers; reduce manual punching, sample unpeeling caused by flying off the paper, Unbalanced factors such as misregulation.
- step 3 the "incubation” method, the blood plate stent method significantly saves the incubation time compared with the direct perforation method.
- Step 4 Before “washing the plate”, the blood plate holder method only needs to lift the column and discard it, and the next step of washing can be performed.
- the direct punching method needs to absorb the reaction through the vacuum suction device.
- the filter paper or the operator directly removes the buffer and the filtered filter paper before proceeding to the next washing.
- the process of directly punching the paper to filter the paper is cumbersome and can lead to unnecessary cross-contamination.
- the experimental group a phenylalanine assay kit (fluorescence analysis method), a blood plate stent for blood sample sputum and an experimental reaction
- a control group phenylalanine determination Kit (fluorescence analysis)
- the phenylalanine assay kit of the control group uses the procedure of directly injecting the dried blood spot sample into the microplate (hereinafter referred to as direct punching method):
- the phenylalanine assay kit of the experimental group uses a blood plate stent to drive the dried blood spot sample into the well of the microplate (hereinafter referred to as the blood stent method).
- the detection is performed using the corresponding program, and the detection is completed within 20 minutes (the excitation wavelength is 390 nm, and the reception wavelength is 486 nm).
- L-ornithine (20mg/dL) 0.30 mg/dL 0.25 mg/dL
- L-arginine (20mg/dL) 0.33 mg/dL 0.28 mg/dL high concentration DL-tyrosine
- step 1 is described as follows: "calibration, quality control, punching of the sample to be tested", blood sample support, filter paper dry blood sample It can be automated by filter paper dry blood film punching machine; reduce hand pain and even hand deformity caused by long-term manual use of punching pliers; reduce manual punching, sample unpeeling and wrong by paper flying off Adjust the unstable factors.
- step 2 The “extraction” described in step 2, the blood stent method directly brings the sample into the white reaction plate, does not require the "U” plate microplate; reduces the cost of the disposable "U” plate microplate or Non-specific reactions caused by repeated use.
- Step 3 “Transfer”, the blood-scray stent method only needs to directly discard and then add the reaction reagent, which saves the time required for the transfer and the nozzle used for the transfer.
- the invention samples the filter paper dried blood sample by using the blood slice bracket, and combines the existing prenatal screening and neonatal disease screening with the filter paper dried blood sample as a test sample, and provides efficient and convenient for multiple tests.
- Steady sample processing method simplifies inspection procedures, automates inspection, and shortens inspection time Improve the stability, precision and sensitivity of test results, and lay a good technical foundation for prenatal screening and screening of neonatal diseases. It is important for prenatal screening and neonatal disease screening in China. The meaning.
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Abstract
一种可使血片检验检测自动化的血片支架(25),其包括条状的基片(10)、固接于所述基片(10)正面的多个支柱(12)、设于所述基片(10)背面的齿条(18)、设于所述基片(10)侧面的多个定位部(22),所述定位部(22)与所述支柱(12)—一对应,所述支柱(12)末端部为锥体(15),该锥体(15)与支柱(12)的主体之间设有环形凹槽(16)。其中,可通过齿轮(141)驱动本血片支架(25)中的齿条(18)从而推动血片支架(25)带动支柱(12)进行步进式自动移动走位,实现血片卡装的自动化,并简化实验操作过程使试验快速进行检测。一种血片支架(25)及其载座(28)组成的血片支架组件,一种用于自动将血样纸片裁切并卡装于血片支架(25)的滤纸干血片打孔机,一种血片支架(25)在体外诊断试剂中的应用。
Description
一种血片支架、 血片支架组件、 滤纸干血片打孔机及血片支架在体外诊断试剂 中的应用 技术领域 本发明涉及一种用于支撑各个单独的血片的血片支架, 以及本血片支架与
说
其载体组成的血片支架组件; 本发明又涉及一种用于自动将血样纸片裁切并卡 装于血片支架的滤纸干血片打孔机; 本发明还涉及一种釆用血片支架在以滤纸 干血片为检测样本进行体外诊断试剂检测尤其是进行新生儿筛查、 产前筛查等 体外诊断试剂的检测中的应用。
书
背景技术
利用滤纸干血片进行疾病检测已广泛应用于新生儿疾病筛查领域。 由于新 生儿血量少, 不易釆集血液提取血清进行检测, 而滤纸干血片法有着检测需要 的釆血量少, 且标本制备完成后易于保存和运输, 有利于标本的分散釆集、 集 中检测等优势, 得到很多新生儿筛查检测人员的认可。
然而, 一般在利用滤纸干血片法进行检测的过程中, 需要通过人工使用打 孔钳将制备好的滤纸干血片切成一定大小的血片, 将切好的血片放入微孔反应 板中的指定微孔内, 震荡反应完成后还需要将微孔中的血片取出。
整个操作步骤应用于实验领域则相对比较繁瑣, 而且这些操作在现有技术 前提下无法实现自动化作业, 需要手工操作, 难以形成批量检测, 使得检测过 程緩慢时间拖延, 使得这种检测方法仅在新生儿检测项目上得到应用, 没有在 产前检测及其他检测领域得到推广。
新生儿疾病筛查是运用当今先进的定量实验室检测手段, 在每一例活产新 生儿中, 发现那些危害严重的先天性代谢遗传疾病, 以达到早期诊断, 早期治 疗, 从而避免新生儿重要脏器(脑、 肝、 肾等) 的不可逆损害导致的死亡或小 儿生长发育和智能发育的延迟。 我国以先天性曱状腺功能减低(CH )和苯丙酮
尿症 (PKU)作为新生儿疾病筛查的主要病种,部分地区还进行了先天性肾上腺皮 质增生症和葡萄糖 -6-磷酸脱氢酶缺乏症等疾病的筛查。目前我国《母婴保健法》 要求至少开展先 CH和 PKU两项筛查。 我国新生儿筛查检测的推荐方法有时间 分辨荧光免疫分析法和荧光分析法。
产前筛查是指通过简便、 经济和较少创伤的检测方法, 从孕妇群中发现某 些先天性缺陷和遗传性疾病胎儿的高风险孕妇, 以便进一步明确诊断。 产前筛 查, 为产前诊断技术的组成部分, 有利于提高产前诊断的效率。 根据 2010年卫 生部发布的 《胎儿常见染色体异常和开放性神经管缺陷的产前筛查与诊断技术 标准》, 产前筛查的目标基本主要是一些常见染色体疾病 (如 21-三体(唐氏综 合症)、 18-三体综合症和 13-三体综合症以及性染色体的异常, 其次为染色体结 构异常)和开放性神经管缺陷 (包括无脑儿和开放性脊柱裂)。 目前, 产前筛查 中心利用超声、母血清学检测等技术对孕妇进行筛查。常用的标记为有: PAPP-A (妊娠相关血浆蛋白 A )、 AFP (曱胎蛋白)、 HCG (人绒毛膜促性腺激素)、 Free- β hCG (人绒毛膜促性腺激素游离 β亚基)、 μ Ε3 (游离雌三醇)、 Inh-A (抑制 素 A )。 我国产前筛查血清学检测的推荐方法有酶联免疫法、 时间分辨荧光免疫 分析法和化学发光法, 其中以时间分辨荧光免疫分析法应用最为广泛。 发明内容 针对现有技术的不足, 本发明要解决的技术问题是提供一种可提供大批滤 纸干血片支撑位置而简化实验操作过程使得滤纸干血片法可应用于实验快速进 行检测的血片支架。
本发明还提供一种可实现自动化批量检验滤纸干血片的血片支架组件。 本发明再提供一种能自动将血样纸片裁切并卡装于血片支架, 从而降低手 工打孔的劳动强度, 简化后续实验操作步骤的滤纸干血片打孔机。
本发明又提供一种血片支架在以滤纸干血片为检测样本进行体外诊断检测 中的应用, 釆用所述血片支架进行体外诊断检测, 可使检测程序简化, 实现检 测自动化,有效缩短检测所需时间,提高检测结果的稳定性、精密度和灵敏度。
为解决上述技术问题, 本发明釆取血片支架的技术方案是:
一种血片支架, 包括条状的基片、 固接于所述基片正面的多个支柱、 设于 所述基片背面的齿条、 设于所述基片侧面的多个定位部, 所述定位部与所述支 柱——对应,所述支柱末端部为锥体,该锥体与支柱的主体之间设有环形凹槽。
作为本发明一种血片支架技术方案的改进, 所述支柱沿基片长度方向沿直 线等距排列。
作为本发明一种血片支架技术方案的改进, 所述齿条的宽度小于所述基片 的宽度。
作为本发明一种血片支架技术方案的改进, 所述支柱的主体部分为锥形或 圓柱形。
作为本发明一种血片支架技术方案的改进, 所述定位部为三角槽或弧形 1HJ 槽或三角棱或弧形凸棱。
本发明血片支架组件的技术方案是: 一种血片支架组件, 包括支架载座、 卡装于所述支架载座的血片支架; 所述血片支架包括条状的基片、 固接于所述 基片正面的多个支柱, 所述支柱末端部为锥体, 该锥体与支柱的主体之间设有 环形 1HJ槽; 所述支架载座包括载座体、 并排平行设于所述载座体正面的多条平 底主凹槽, 所述主凹槽的一端离开其底面悬空设有前倒扣, 主凹槽的另一端离 开其底面悬空设有尾凸扣; 所述基片对应嵌装于所述主凹槽。
作为本发明血片支架组件技术方案的改进, 每个主 槽底面设有内 槽, 内 1HJ槽与主 1HJ槽同向延伸, 所述基片的背面设有齿条, 所述齿条藏于所述内 1HJ 槽。
作为本发明血片支架组件技术方案的改进, 所述前倒扣前端外侧具有导入 斜坡; 所述前倒扣两侧与所述主凹槽的长侧面之间具有间隙。
作为本发明血片支架组件技术方案的改进, 所述载座体的底面四周垂直于 底面设有第一握持边, 所述载座体的顶面四周设有第二握持边。
作为本发明血片支架组件技术方案的改进, 所述第一握持边内侧设有内 沿, 所述第二握持边的内侧设有与所述内凹沿配合的内突沿。
作为本发明血片支架组件技术方案的改进, 所述支柱沿基片长度方向沿直 线等距排列。
作为本发明血片支架组件技术方案的改进, 所述齿条的宽度小于所述基片 的宽度。
作为本发明血片支架组件技术方案的改进, 所述支柱的主体部分为锥形或 圓柱形。
作为本发明血片支架组件技术方案的改进, 所述基片的侧面设有多个定位 部, 所述定位部与所述支柱——对应。
作为本发明血片支架组件技术方案的改进, 所述定位部为三角槽或弧形 槽或三角棱或弧形凸棱。
本发明一种滤纸干血片打孔机的技术方案是: 一种滤纸干血片打孔机, 用 于自动将血样纸片裁切并卡装于血片支架, 包括设有立板的机座, 立板上安装 有旋转电机, 旋转电机上安装有偏心轮以及与偏心轮同轴转动的遮光片, 偏心 轮一侧设有光电开关, 偏心轮下方设有一端铰接于立板而另一端被所述偏心轮 压住并可随偏心轮的旋转而摇转的第一摇杆, 第一摇杆的自由端下表面压紧打 孔上模上端, 打孔上摸下端与打孔下模上端相对, 打孔上模和打孔下模之间具 有放置待裁剪的血样纸片的间隙, 所述打孔下模安装于与所述立板固接的模座, 模座开有可供打孔上模从中上下运动的通孔, 所述模座与所述第一摇杆之间设 有压缩弹簧, 所述压缩弹簧套设于所述打孔上模外;
所述第一摇杆自由端还与一竖直设置的拉杆上端铰接, 所述拉杆下端与第 二摇杆一端铰接, 所述第二摇杆另一端连接于穿过一单向滚子轴承的轴, 所述 单向滚子轴承与一齿轮紧配, 所述血片支架位于所述打孔下模与所述齿轮之间 , 所述血片支架包括条状的基片、 固接于所述基片正面的多个支柱、 设于所述基 片背面的齿条, 所述支柱末端部为锥体, 该锥体与支柱的主体之间设有环形 1HJ 槽; 所述基片背面的齿条与所述齿轮啮合。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述支柱沿基片长度 方向沿直线等距排列。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述齿条的宽度小于 所述基片的宽度。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述支柱的主体部分 为锥形或圓柱形。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述基片侧面设有的 多个定位部 , 所述定位部与所述支柱——对应。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述定位部为三角槽 或弧形 1HJ槽或三角棱或弧形凸棱。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述模座内供所述打 孔上模从中上下穿过的通孔中安装有导向铜套, 所述打孔上模在所述导向铜套 内上下运动。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述偏心轮的初始位 置为按逆时针方向偏离最高点一定角度, 并且所述偏心轮按逆时针方向旋转。
作为本发明一种滤纸干血片打孔机技术方案的改进: 偏心轮的初始位置按 逆时针方向偏离最高点的角度为小于 45° 。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述第一摇杆自由端 外表面设有压块, 并设有从该第一摇杆自由端和所述压块穿过的用于压紧所述 打孔上模顶端的螺栓。
作为本发明一种滤纸干血片打孔机技术方案的改进: 所述拉杆上端还连接 有一个安装于立板并竖直设置于拉杆上方的拉伸弹簧。
本发明所提供的一种血片支架在体外诊断试剂中的应用的技术方案是: 包 括以下步骤:
( 1 )用滤纸干血片打孔机和血片支架从滤纸干血片上打下直径为 3〜5mm 的血片, 备用;
( 2 )釆用体外诊断试剂检测方法进行检测;
其中, 所述步骤(1 ) 中的血片支架包括: 条状的基片、 固接于所述基片正 面的多个支柱, 所述支柱末端部为锥体, 该锥体与支柱的主体之间设有环形 1HJ
槽, 所述滤纸干血片打孔机从滤纸干血片上打下血片并将血片卡装在所述血片 支架的环形 1HJ槽。
作为本发明一种血片支架在体外诊断试剂中的应用的技术方案的改进, 所 述血片支架的支柱沿基片长度方向沿直线等距排列。
作为本发明一种血片支架在体外诊断试剂中的应用的技术方案的改进, 所 述基片背面设有齿条, 所述齿条的宽度小于所述基片的宽度。
作为本发明一种血片支架在体外诊断试剂中的应用的技术方案的改进, 所 述血片支架的支柱的主体部分为锥形或圓柱形。
作为本发明一种血片支架在体外诊断试剂中的应用的技术方案的改进, 所 述基片侧面设有的多个定位部, 所述定位部与所述支柱——对应。
作为本发明一种血片支架在体外诊断试剂中的应用的技术方案的改进, 所 述血片支架的定位部为三角槽或弧形 1HJ槽或三角棱或弧形凸棱。
作为本发明一种血片支架在体外诊断试剂中的应用的技术方案的改进, 所 述步骤(2 ) 中的体外诊断试剂检测方法为时间分辨荧光免疫分析法、 化学发光 法、 酶联免疫法或荧光分析法。
本发明的有益效果在于: 技术方案中血片支架的基片的正面设多个支柱, 支柱设有环形凹槽, 再通过对应设备(见本发明的滤纸干血片打孔机) 的齿轮 驱动本血片支架中的齿条从而推动血片支架带动支柱在对应的切血片卡装设备 中进行步进移动, 实现步进式自动走位, 对应设备自动将血片裁切好, 然后逐 一^ ^装在血片支架的支柱所设置的环形凹槽而固定, 实现血片卡装的自动化。 在卡装的过程中, 基片侧面的定位部与设备对应的部件进行对接从而实现精确 定位, 保证自动化卡装过程顺利进行, 避免了繁瑣的手工操作, 使血片卡装过 程得以简化。 各个单独的裁切出的滤纸干血片卡在血片支架的支柱处, 便于后 续对一个血片支架的血片一次性同步进行的实验检验作业, 加速检验过程。
通过将这种血片支架和血片支架载座组^ [艮成的血片支架组件, 可以将嵌有 滤纸干血片的单条的血片支架装成整体, 以方便手工以及仪器操作, 便于自动 化和快速检测。
釆用本发明滤纸干血片打孔机可以自动将血样纸片裁切成合适的形状、 尺 寸, 然后再穿插到血片支架的支柱并卡装于环形 槽, 同时血片支架在完成血 样纸片穿插后将同步前移一个支柱位进行下一个血样纸片的裁切与卡装, 从而 降低釆用手工打孔的劳动强度, 简化后续实验操作步骤。
本发明所述血片支架在体外诊断试剂中的应用, 提供了一种简化检测程序、 实现检测自动化的体外诊断检测方法, 与现有方法中使用打孔钳将制备好的滤 纸干血片切成一定大小的血片、 然后将切好的血片放入微孔反应板中的指定微 孔内相比, 不仅减少了因长期手工使用打孔钳打孔带来的手部疼痛甚至手部畸 形, 减少了手工打孔时, 血片飞脱带来的样本脱孔、 错调等不稳定因素, 而且 有效缩短了检测所需时间, 提高检测结果的稳定性、 精密度和灵敏度, 可广泛 应用于产前筛查和新生儿疾病筛查的时间分辨荧光免疫分析法的试剂盒和荧光 分析法试剂盒, 如新生儿促曱状腺激素测定试剂盒和苯丙氨酸测定试剂盒。 附图说明 图 1为本发明血片支架实施例的正向结构示意图。
图 2为图 1所示血片支架的俯视图。
图 3为带有血片的血片支架实施例的正向结构示意图。
图 4为本发明的血片支架组件实施例的立体结构示意图。
图 5为本发明的血片支架组件实施例中血片支架载座的正向结构示意图。 图 6为图 5所示的血片支架载座 A-A向截面结构示意图。
图 7为图 6中 B区域局部放大图。
图 8为图 5所示的血片支架载座的立体结构示意图。
图 9为图 8中 C区域局部放大图。
图 10为本发明的滤纸干血片打孔机实施例的主视结构示意图。
图 11为本发明的滤纸干血片打孔机实施例的侧视结构示意图。
图 12为图 10所示实施例中偏心轮旋转的行程图。
图 1 3为釆用本发明所述的血片支架在体外诊断试剂中的应用的方法与常规
检测方法所测新生儿滤纸干血片样本中促曱状腺素浓度值的比较图。 图 14为釆用本发明所述的血片支架在体外诊断试剂中的应用的方法与常规 检测方法所测新生儿滤纸干血片样本中苯丙氨酸浓度值的比较图。
具体实施方式 下面结合附图来进一步说明本发明的具体实施方式。
如图 1、 图 2、 图 3所示, 本发明一种血片支架, 其包括条状(平板状) 的 基片 10、 固接于所述基片 10正面的多个支柱 12、 设于所述基片 10背面的齿条 18、设于所述基片 1 0侧面的多个定位部 22 , 所述定位部 22与所述支柱 12—— 对应, 所述支柱 12末端部为锥体 15 , 该锥体 15与支柱 12的主体之间设有环形 凹槽 16。 其中血片支架的基片 10的正面设多个支柱 12 , 支柱 12设有环形凹槽 16 , 再通过对应设备(见下面实施例所介绍的滤纸干血片打孔机) 的齿轮(见 图 10、 图 11中的齿轮 141 )驱动本血片支架中的齿条从而推动血片支架带动支 柱 12在对应的切血片卡装设备中进行步进移动, 实现步进式自动走位, 对应设 备自动将血片裁切好并对切出来的血片打孔, 然后逐一卡装在血片支架的支柱 所设置的环形凹槽而固定, 实现血片卡装的自动化。 在卡装的过程中, 基片侧 面的定位部 22与设备对应的部件进行对接从而实现精确定位, 保证自动化卡装 过程顺利进行, 避免了繁瑣的手工操作, 使血片卡装过程得以简化。 各个单独 的裁切出的滤纸干血片卡在血片支架的支柱处, 便于后续对一个血片支架的血 片一次性同步进行的实验检验作业, 加速检验过程。
血片用支柱 12的锥体 15插入并将血片卡于环形凹槽 16 , 实现固定, 然后 通过齿条 18在对应的齿轮驱动下前行, 从而使干血片打孔后能够逐一^ ^入步进 式前行的血片支架的支柱, 卡装过程得以机械化自动化, 使血片支架所支撑的 各个单独的血片可以同步进行检测检验。环形凹槽 16可以使血片固定到支柱 12 上, 不会脱落。
更佳地, 所述支柱 12沿基片长度方向沿直线等距排列, 使得血片可以逐一 等距步进式前移推进, 每次推进的距离一致, 便于设备的运作, 使得血片卡装
过程自动化得以顺利实现。
更佳地, 所述齿条 18的宽度小于所述基片的宽度, 使得基片的两侧可与设 备进行嵌接以及定位, 保证移动顺畅可靠且定位准确到位。
更佳地,所述支柱 12的主体部分为锥形或圓柱形,自身圓滑易于卡接血片, 该形状的结构体更坚固强度更有保证。
更佳地, 所述定位部 22为三角槽或弧形凹槽, 对应地与楔形或柱形面接触 定位, 形成精确到位的定位, 对血片卡装过程起到定位保证。 三角槽与楔形体 定位更加精确, 但其楔形体容易碰坏或刮花基片, 损坏三角槽, 扩大三角槽, 造成后期定位不精确。 弧形凹槽定位精确度较低, 但其损坏风险较低, 使用寿 命稍长。
更佳地, 所述定位部 22为三角棱或弧形凸棱, 对应地三角槽或弧形凹槽设 于设备与其相配合进行定位。
如图 1、 图 2、 图 3、 图 4所示, 本发明一种血片支架组件, 其包括支架载 座 28、 卡装于所述支架载座的血片支架 25; 所述血片支架 25 包括条状的基片 10、 固接于所述基片 10正面的多个支柱 12 , 所述支柱 12末端部为锥体 15 , 该 锥体 15与支柱 12的主体之间设有环形凹槽 16。 所述支架载座 28 包括载座体 30、 并排平行设于所述载座体 30正面的多条平底主凹槽 33 , 所述主凹槽 33的 一端离开其底面悬空设有前倒扣 36 ,主凹槽 33的另一端离开其底面悬空设有尾 凸扣 39 ,所述基片 10对应嵌装于所述主凹槽 33。血片支架载座设置主凹槽 33 , 主凹槽间距与检测实验中的微孔反应板间距保持一致, 使得每次血片支架装载 的间距保持一致, 便于全自动设备的定位。 血片支架卡装于主凹槽 33内, 通过 主凹槽 33两端的前倒扣 36和尾凸扣 39的阻挡, 保证在操作过程中血片支架不 会^^动脱落, 避免实验过程发生意外。 通过这种血片支架载座结合血片支架组 合成的血片支架组件, 可以将嵌有滤纸干血片的单条的血片支架装成整体, 以 方便手工以及仪器操作, 便于自动化和快速检测。
更佳地,每个主凹槽 33底面设有内凹槽 35 , 内凹槽 35与主凹槽 33同向延 伸, 所述基片的背面设有齿条 18 , 所述齿条 18藏于所述内凹槽 35。 没有内凹
槽的支架载座可以承载无背齿条的血片支架, 直接增加主凹槽 33的深度也可以 装载带有背齿条的血片支架, 设置内凹槽预留空间给齿条则可以保护齿条, 同 时避免血片支架整体安装导致的变形, 血片支架具有齿条则可以使血片安装自 动化。
具体地, 单个血片支架的基片 1 0的正面设多个支柱 12 , 支柱 12设有环形 凹槽 1 6 , 再通过对应设备(见图 1 0、 图 1 1所示的滤纸干血片打孔机) 的齿轮 (见图 1 0、 图 1 1所示的齿轮 141 )驱动本血片支架中的齿条从而推动血片支架 带动支柱 12 在对应的切血片卡装设备中进行步进移动, 实现步进式自动走位, 对应设备自动将血片裁切好并对切出来的血片打孔, 然后逐一卡装在血片支架 的支柱所设置的环形凹槽而固定, 实现血片卡装的自动化。 各个单独的裁切出 的滤纸干血片卡在血片支架的支柱处, 便于后续对一个血片支架的血片一次性 同步进行的实验检验作业, 加速检验过程。
用支柱 12的锥体 15插入并将血片卡于环形 1HJ槽 16 , 实现固定卡装于支架 载座, 一个支架载座可以承载上百个血片, 使血片支架所支撑的各个单独的血 片可以同步进行检测检验, 实现自动化提高检测的效率。 环形凹槽 16可以使血 片固定到支柱 12上, 不会脱落。
以下具体参考图 5至图 9所示。
更佳地, 血片支架 25的一端先嵌入尾凸扣 39 , 所述前倒扣 36前端外侧具 有导入斜坡 37 , 便于引导血片支架 25的剩余一端卡入主凹槽 33内。
更佳地, 所述前倒扣 36两侧与所述主凹槽 33的长侧面之间具有间隙, 使 得前倒扣 36可以产生弹性变形, 使其悬空端可产生位置偏移,便于血片支架 25 卡入。
更佳地, 所述载座体 30的底面四周垂直于底面设有第一握持边 32 , 第一握 持边 32围成底腔,便于设备接载,也预留空间, 两个支架载座(血片支架载座) 叠放时具有预留空间, 避免干涉, 同时第一握持边 32还可以支撑承托起载座体 30的本体, 避免载座体本体变形而导致的放置不平稳状态; 第一握持边 32在卡 装血片的时候可以起到与设备连接定位的作用。 所述载座体 30的顶面四周设有
第二握持边 31 , 方便手持支架载座 28 , 同时也方便设备操作时夹持该支架载座 28 , 在支架载座 28倒置进行实验检测时还提供定位部位, 防止设备引起震动错 位。 第一握持边与第二握持边组合为整体的握持边, 进一步改善握持效果, 同 时减少握持边的变形, 改善定位效果。
更佳地, 所述第一握持边 32内侧设有内凹沿 52 , 所述第二握持边 31的内 侧设有与所述内凹沿配合的内突沿 51 ,便于两个支架载座 28上下相互叠加, 以 节省空间, 同时便于设备自动化作业, 提高作业效率。
以下具体参考图 1至图 3所示。
更佳地, 所述支柱 12沿基片长度方向沿直线等距排列, 使得血片可以逐一 等距步进式前移推进, 每次推进的距离一致, 便于设备的运作, 使得血片卡装 过程自动化得以顺利实现, 提高实验检测的效率。 所述基片 1 0的侧面设有多个 定位部 22 , 所述定位部 22与所述支柱 12——对应, 在卡装的过程中, 基片侧 面的定位部 22与设备对应的部件进行对接从而实现精确定位, 保证自动化卡装 过程顺利进行, 避免了繁瑣的手工操作, 使血片卡装过程得以简化。
更佳地, 所述齿条 18的宽度小于所述基片的宽度, 使得基片的两侧可与设 备进行嵌接以及定位, 保证移动顺畅可靠且定位准确到位。
更佳地,所述支柱 12的主体部分为锥形或圓柱形,自身圓滑易于卡接血片, 该形状的结构体更坚固强度更有保证。
更佳地, 所述定位部 22为三角槽或弧形凹槽, 对应地与楔形或柱形面接触 定位, 形成精确到位的定位, 对血片卡装过程起到定位保证。 三角槽与楔形体 定位更加精确, 但其楔形体容易碰坏或刮花基片, 损坏三角槽, 扩大三角槽, 造成后期定位不精确。 弧形凹槽定位精确度较低, 但其损坏风险较低, 使用寿 命稍长。 所述定位部也可以是三角棱或弧形凸棱, 对应地三角槽或弧形凹槽设 于设备与其相配合进行定位。
如图 10、 图 11所示, 本发明一种滤纸干血片打孔机实施例, 用于自动将血 样纸片裁切并打入血片支架 25,并卡装于锥体 15与支柱 12的主体之间的环形 1HJ 槽 16。 本滤纸干血片打孔机实施例包括设有立板 110的机座 1 , 立板 110上安
装有旋转电机 112,旋转电机 112上安装有偏心轮 111和与偏心轮 111同轴转动 的遮光片 113, 偏心轮一侧设有光电开关 114, 光电开关 114用于在感应到遮光 片到达其位置时, 控制旋转电机 112断电。 偏心轮 111下方设有一端铰接于立 板 110的第一摇杆 121, 第一摇杆 121另一端被偏心轮 111压住并可随偏心轮 111的旋转而摇转,第一摇杆 121的自由端下表面与打孔上模 131上端接触并压 紧打孔上模 131。打孔上摸 131下端与打孔下模 132上端相对, 打孔上模 131和 打孔下模 132之间具有放置待裁剪的血样纸片的间隙, 所述打孔下模 132安装 于与所述立板 110固接的模座 133,模座 133开有可供打孔上模 131从中上下运 动的通孔, 所述模座 133与所述第一摇杆 121之间设有压缩弹簧 134, 所述压缩 弹簧 134套设于所述打孔上模 131外。 在偏心轮 111和压缩弹簧 134的共同作 用下, 第一摇杆 121可上下摇转。
第一摇杆 121 自由端还与一竖直设置的拉杆 122上端铰接, 所述拉杆 122 下端与第二摇杆 123—端铰接, 所述第二摇杆 123另一端连接于一单向滚子轴 承 142的轴 1420, 单向滚子轴承 142与一齿轮 141紧配,血片支架 25位于所述 打孔下模 132与所述齿轮 141之间, 血片支架 25包括条状的基片 10、 固接于基 片 10正面的多个支柱 12、 设于基片 10背面的齿条 18 (见图 1、 图 2), 支柱 12 末端部为锥体 15, 锥体 15与支柱的主体之间设有环形凹槽 16, 并且,基片 10 背面的齿条与所述齿轮 141啮合。 另外, 立板 110安装有一对用于安装齿轮 141 的齿轮座 1410。
优选的, 模座 133 内供所述打孔上模 131从中上下穿过的通孔中安装有导 向铜套 135, 打孔上模 131在所述导向铜套 135 内上下运动。 优选的, 偏心轮 111的初始位置为按逆时针方向偏离最高点一定角度,并且所述偏心轮按逆时针 方向旋转,偏心轮的初始位置按逆时针方向偏离最高点的角度优选为小于 45。 。
在本发明滤纸干血片打孔机的技术方案中, 机座外壳设有为偏心轮旋转电 机供电的电源及控制旋转电机工作的开关。 本仪器接通电源, 打开开关后, 旋 转电机 112带动偏心轮 111开始按逆时针方向旋转(偏心轮 111的初始位置为 按逆时针方向偏离最高点一定角度), 而偏心轮 111压着的第一摇杆 121开始随
着摇转,第一摇杆 121的自由端压着打孔上模 131在导向铜套 135中向下运动, 先将放在打孔下模 132 上的血样纸片裁切, 继续向下运动, 将裁切好的血样纸 片穿插到放在打孔下模 132下方的血片支架 25的支柱 12的针尖上, 并卡装于 环形凹槽 16, 如图 12中的 D点位置, 此时偏心轮 111到达最低点位置, 此后打 孔上模 131在压缩弹簧 134的弹力下向上运动,在回到与初始位对应的高度(见 图 12的 E点位置, 在 E点位置, 打孔上模 131 已完全退入导向铜模 35内, 未 裁切的剩余的血样纸片粘在打孔上模 131, 在打孔上模 131退入导向铜模 35时 由导向铜模 35推出从而脱离)后继续向上运动,到达偏心轮 111的最高点位置, 再在偏心轮 111的压力下向下运动, 当与偏心轮 111 同轴安装并随着运动的遮 光片 113到达光电开关 114位置时, 光电开关 114感应到, 并发出信号, 旋转 电机 112 断电, 靠惯性继续旋转一定的位置后停止, 回到初始位置, 到此时完 成一个运动周期, 其行程图如图 12所示
优选的, 偏心轮 111 的初始位置为按逆时针方向偏离最高点一定角度, 当 打孔上模 131将血样纸片裁切完毕并穿插到血片支架 25的支柱 12的针尖后在 压缩弹簧 134的弹力作用下向上的过程中, 在打孔上模 131上升到初始位对应 的高度时, 打孔上模 131完全退回至导向铜模 35内, 这样, 由于打孔上模 131 裁剪而粘在打孔上模 131上的血样纸片将由导向铜模 35推出。 而如果选择偏心 轮 111的最高点位置作为初始位, 则在偏心轮 111回归初始位时, 打孔上模 131 也才正好退入导向铜模 35, 可能会在脱开血样纸片的过程中卡在打孔上模 131 上。
上述流程中, 当偏心轮 111 自初始位置逆时针旋转, 第一摇杆 121向下摇 转的过程中, 与第一摇杆 121 的自由端铰接的拉杆 122将随着向下运动, 带动 第二摇杆 123顺时针旋转, 由于通过轴 1420安装于第二摇杆 123另一端的单向 滚子轴承 142 只能单向旋转, 并且是只能顺时针旋转的, 所以此时只是单向滚 子轴承 142发生旋转运动, 而与单向滚子轴承 142紧配的齿轮 141是不动的; 而当偏心轮 111向上运动时, 拉杆 122也向上运动, 第二摇杆 123做逆时针旋 转, 此时单向滚子轴承 142不能旋转, 只能是齿轮 141 随着做逆时针旋转, 这
样与齿轮 141啮合的血片支架 25也能在齿轮 141旋转过程中水平向前左运动, 设计好相关尺寸,使齿轮 141旋转的行程刚好能使血片支架 25走位一个支柱 12 的位置,也就是偏心轮 111一个周期完成,血片支架 25也完成一个位置的运动。
优选的, 第一摇杆 121 自由端外表面设有压块 1210 , 并设有从该第一摇杆 121 自由端和所述压块 1210穿过的用于压紧所述打孔上模 1 31顶端的螺栓 1211 (见图 11 )。 换言之, 第一摇杆 121 自由端通过该螺栓 121 1压住打孔上模 1 31 顶端, 以实现打孔上模 1 31初始位置的上下调整。
优选的, 拉杆 122 上端还连接有一个安装于立板竖直设置于拉杆上方的拉 伸弹簧 1220。 这样, 在拉杆 122静止不动或者随第一摇杆 121运动的过程中, 拉伸弹簧 1220可以提供相应的作用力。
在本发明滤纸干血片打孔机的技术方案中, 运用偏心轮及摇杆加齿轮、 齿 条机构将同一个旋转电机 1 12 的旋转运动转化为两个相关的直线运动, 其中一 个直线运动机构完成将血样纸片裁切及穿插到血片支架 25上的功能, 另一个直 线运动机构完成血片支架 25的水平走位功能, 即在完成一个血样的穿插后, 使 血片支架 25 前进一个穿插位, 由于两个直线运动是由一个旋转电机转化来的, 所以能 4艮好的配合完成整个工序的工作。 釆用上述技术方案, 实现了自动将血 样纸片裁切成合适的形状、 尺寸, 并穿插到血片支架的支柱上, 并卡装于环形 1HJ槽, 从而降低釆用手工打孔的劳动强度, 简化后续实验操作步骤, 使得滤纸 干血片法能在其他测试项目普及开来。
参见图 1、 图 2、 图 3 , 血片支架 25包括条状(平板状) 的基片 10、 固接 于所述基片 10正面的多个支柱 12、 设于所述基片 10背面的齿条 18 , 所述支柱 12末端部为锥体 15 , 该锥体 15与支柱 12的主体之间设有环形凹槽 16。 基片 10背面的齿条 18与齿轮 141啮合。通过滤纸干血片打孔机的齿轮 141驱动本血 片支架中的齿条从而推动血片支架带动支柱 12在对应的切血片卡装设备中进行 步进移动, 实现步进式自动走位, 滤纸干血片打孔机自动将血样纸片裁切好并 对切出来的血片打孔, 然后逐一^ ^装在血片支架的支柱所设置的环形凹槽而固 定, 实现血片卡装的自动化。 各个单独的裁切出的滤纸干血片卡在血片支架的
支柱处, 便于后续对一个血片支架的血片一次性同步进行的实验检验作业, 加 速检验过程。
血片用支柱 12的锥体 15插入并将血片卡于环形凹槽 16 , 实现固定, 然后 通过齿条 18在对应的齿轮驱动下前行, 从而使干血片打孔后能够逐一^ ^入步进 式前行的血片支架的支柱, 卡装过程得以机械化自动化, 使血片支架所支撑的 各个单独的血片可以同步进行检测检验。环形凹槽 16可以使血片固定到支柱 12 上, 不会脱落。
更佳地, 所述支柱 12沿基片长度方向沿直线等距排列, 使得血片可以逐一 等距步进式前移推进, 每次推进的距离一致, 便于设备的运作, 使得血片卡装 过程自动化得以顺利实现。
更佳地, 所述齿条 18的宽度小于所述基片的宽度, 使得基片的两侧可与设 备进行嵌接以及定位, 保证移动顺畅可靠且定位准确到位。
更佳地,所述支柱 12的主体部分为锥形或圓柱形,自身圓滑易于卡接血片, 该形状的结构体更坚固强度更有保证。
更加的, 基片 10侧面设有多个定位部 22 , 设于所述基片 10侧面的多个定 位部 22 , 所述定位部 22与所述支柱 12——对应。 在卡装的过程中, 基片侧面 的定位部 22与设备对应的部件进行对接从而实现精确定位, 保证自动化卡装过 程顺利进行, 避免了繁瑣的手工操作, 使血片卡装过程得以简化。
更佳地, 所述定位部 22为三角槽或弧形凹槽, 对应地与楔形或柱形面接触 定位, 形成精确到位的定位, 对血片卡装过程起到定位保证。 三角槽与楔形体 定位更加精确, 但其楔形体容易碰坏或刮花基片, 损坏三角槽, 扩大三角槽, 造成后期定位不精确。 弧形凹槽定位精确度较低, 但其损坏风险较低, 使用寿 命稍长。
更佳地, 所述定位部 22为三角棱或弧形凸棱, 对应地三角槽或弧形凹槽设 于设备与其相配合进行定位。
下面介绍血片支架在体外诊断试剂中的应用实施例, 其包括以下步骤:
( 1 )用滤纸干血片打孔机和血片支架从滤纸干血片上打下直径为 3〜5mm 的血片, 备用;
( 2 )釆用体外诊断试剂检测方法进行检测;
其中, 所述步骤(1 ) 中的血片支架包括: 条状的基片 10、 固接于所述基片 10正面的多个支柱 12, 所述支柱 12末端部为锥体 15 , 该锥体 15与支柱的主体 之间设有环形凹槽 16, 所述滤纸干血片打孔机从滤纸干血片上打下血片并将血 片卡装在所述血片支架的环形 1HJ槽 16。
使用时, 滤纸干血片打孔机与血片支架配合使用, 滤纸干血片打孔机从滤 纸干血片上打下血片并将血片卡装在所述血片支架的支柱 12上。 由于血片卡装 在所述血片支架的支柱 12上, 血片在微孔反应板的溶液中处于悬浮状态, 使用 后不需要再将微孔中的血片甩出, 直接将血片支架取出即可。
较佳地, 如图 1所示, 所述血片支架的支柱 12末端部为推体 15。 当所述血 片支架的支柱 12末端部为推体 15时, 便于将滤纸干血片打孔机从滤纸干血片 上打下的血片卡装在所述血片支架的支柱 12上。
更佳地, 如图 1、 2和 3所示, 所述血片支架还包括设于所述基片 10背面 的齿条 18、 设于所述基片 10侧面的多个定位部 22, 所述定位部 22与所述支柱 12——对应,所述支柱 12末端部的锥体 15与支柱 12的主体之间设有环形凹槽 16。 其中血片支架的基片 10的正面设多个支柱 12, 支柱 12设有环形凹槽 16, 再通过滤纸干血片打孔机的齿轮驱动本血片支架中的齿条从而推动血片支架带 动支柱 12在对应的滤纸干血片打孔机中进行步进移动, 实现步进式自动走位, 滤纸干血片打孔机自动将血片裁切好并对切出来的血片打孔, 然后逐一卡装在 血片支架的支柱所设置的环形凹槽而固定, 实现血片卡装的自动化。 在卡装的 过程中, 基片侧面的定位部 22与滤纸干血片打孔机对应的部件进行对接从而实 现精确定位, 保证自动化卡装过程顺利进行, 避免了繁瑣的手工操作, 使血片 卡装过程得以简化。 各个单独的裁切出的滤纸干血片卡在血片支架的支柱处, 便于后续对一个血片支架的血片一次性同步进行的实验检验作业, 加速检验过
程。
血片用支柱 12的锥体 15插入并将血片卡于环形凹槽 16, 实现固定, 然后 通过齿条 18在滤纸干血片打孔机对应的齿轮驱动下前行, 从而使干血片打孔后 能够逐一卡入步进式前行的血片支架的支柱, 卡装过程得以机械化自动化, 使 血片支架所支撑的各个单独的血片可以同步进行检测检验。 环形凹槽 16可以使 血片固定到支柱 12上, 不会脱落。
较佳地, 所述支柱 12沿基片长度方向沿直线等距排列, 使得血片可以逐一 等距步进式前移推进, 每次推进的距离一致, 便于设备的运作, 使得血片卡装 过程自动化得以顺利实现。
较佳地, 所述齿条 18的宽度小于所述基片的宽度, 使得基片的两侧可与滤 纸干血片打孔机进行嵌接以及定位, 保证移动顺畅可靠且定位准确到位。
较佳地,所述支柱 12的主体部分为锥形或圓柱形,自身圓滑易于卡接血片, 该形状的结构体更坚固强度更有保证。
较佳地, 所述定位部 22为三角槽或弧形凹槽, 对应地与楔形或柱形面接触 定位, 形成精确到位的定位, 对血片卡装过程起到定位保证。 三角槽与楔形体 定位更加精确, 但其楔形体容易碰坏或刮花基片, 损坏三角槽, 扩大三角槽, 造成后期定位不精确。 弧形凹槽定位精确度较低, 但其损坏风险较低, 使用寿 命稍长。
较佳地, 所述定位部 22为三角棱或弧形凸棱, 对应地三角槽或弧形凹槽设 于设备与其相配合进行定位。
本发明中所述血片支架一般通体为硬塑料, 所述血片支架的支柱全长一般 在 10〜15毫米, 每条基片上设置的支柱一般为 8或 12根。 所述基片背面设有齿 条, 方便打孔设备带动。 所述血片支架制造简单, 适合于全自动打孔设备, 重 量轻, 价格低廉, 耐腐蚀性能好。
实施例 1 新生儿滤纸干血片样本中促曱状腺素浓度的测定
本实施例分为实验组和对照组, 实验组: 新生儿促曱状腺激素测定试剂盒 (时间分辨荧光免疫分析法)釆用血片支架进行滤纸干血片釆样及实验反应,
对照组: 新生儿促曱状腺激素测定试剂盒(时间分辨荧光免疫分析法) 直接将 干血斑样本打入 孔板孔中反应, 两种实验操作过程如下述。
对照组的新生儿促曱状腺激素测定试剂盒釆用直接将干血斑样本打入微孔 板孔中反应 (下称直接打孔法) 的操作步骤:
①校准品、 质控品、 待测样本的打孔: 用打孔钳从滤纸干血片上直接打下 直径为 3mm ( 1/8 inch ) 的校准品、 质控品以及样本 (打下纸片须被血液浸透), 并依次放置于微孔反应板中,每孔一片。控制打孔的一致性,使纸片尽量一致;
② 加入铕标记物工作液: 向每孔中加入 150μ1已配好的铕标记物工作液, 并加贴封片;
③ 孵育:微孔反应板条在室温下,先用振荡器快速振荡 15分钟,在 2 ~ 8°C 静置过夜, 第二天再于室温下緩慢振荡孵育 60分钟(此为过夜孵育法); 或者 用振荡器快速振荡 15分钟,然后再室温下緩慢振荡 4小时(此为快速孵育法); 注: 快速振荡 15分钟是为了将血中 hTSH从纸片中尽量提取出来;
④ 洗板: 孵育结束后, 吸取滤纸片, 用洗板机洗涤 6次, 拍干;
⑤ 加入增强液: 洗涤完成后, 向每孔中加入增强液 150μ1;
⑥ 检测: 微孔反应板条于室温下緩慢振荡 5分钟后上机检测, 在 30分钟 内完成检测。
实验组的新生儿促曱状腺激素测定试剂盒釆用血片支架将干血斑样本打入 微孔板孔中反应 (下称血片支架法) 的操作步骤:
①校准品、 质控品、 待测样本的打孔: 用滤纸干血片打孔机和血片支架从 滤纸干血片上打下并固定直径为 3mm ( 1/8 inch )的校准品、质控品以及样本 (打 下纸片须被血液浸透), 备用;
② 加入铕标记物工作液: 向每孔中加入 150μ1已配好的铕标记物工作液, 依次将打好在血片支架上的校准品、 质控品以及样本放入板孔中, 盖上盖子或 用自封袋装好放在振荡器上;
③ 孵育: 室温下緩慢振荡 2小时;
④ 洗板: 孵育结束后, 扔掉血片支架, 用洗板机洗涤 6次, 拍干;
⑤ 加入增强液: 洗涤完成后, 向每孔中加入增强液 150μ1;
⑥ 检测: 微孔反应板条于室温下緩慢振荡 5分钟后上机检测, 在 30分钟 内完成检测。
实验组和对照组所测新生儿滤纸干血片样本中促曱状腺激素浓度值的比较 见图 13 , 相关系数为 r=0.9992。 实验组和对照组的分析性能指标如表 1所示: 表 1 实验组和对照组的分析性能指标
分析性能指标 血片支架法 直接打孔法 灵敏度 1.20μυ/ηΛ 3.20μυ/ηΛ
黄体生成
素 (hLH ) 2.23 U/mL 2.5^U/mL 250U/L 促卵泡激
特异 素( hFSH ) 1.52 U/mL 2.2^U/mL
性 250U/L 绒毛膜促
性腺激素 3.24U/mL 3.85 U/mL ( hCG )
10000U/L
线性相关系数 0.9985 0.9972
测量准确度(测定 浓度为 ΙΟΟμυ/mL
7.4% 12.6%
的 TSH国家标准
品 (纸片)) 批内精密度 5.3% 9.8%
批间精密度 7.2% 11.3%
反应时间 2h 4h
由图 13及表 1可知, 本实施例中, 其中, (1 )步骤①所述: "校准品、 质 控品、 待测样本的打孔" , 釆用血片支架釆集滤纸干血片样本可通过滤纸干血 片打孔机实现自动化; 减少因长期手工使用打孔钳打孔带来的手部疼痛甚至手 部畸形; 减少手工打孔, 纸片飞脱带来的样本脱孔、 错调等不稳定因素。 (2 ) 步骤③所迷 "孵育" ,血片支架法较直接打孔法明显大大节约了孵育时间。 ( 3 ) 步骤④所述: "洗板" 前, 血片支架法只需要提起支柱并弃掉就可以进行下一 步的洗板, 而直接打孔法需要通过负压吸引器逐孔吸取反应后的滤纸片或通过 操作者直接将緩冲液和反应后的滤纸片甩掉后才能进行下一步的洗板。 直接打 孔法去滤纸片的过程繁复费事, 甚至会导致不必要的交叉污染。
实施例 2 新生儿滤纸干血片样品中苯丙氨酸浓度的测定
本实施例分为实验组和对照组, 实验组: 苯丙氨酸测定试剂盒(荧光分析 法)釆用血片支架进行滤纸干血片釆样及实验反应, 对照组: 苯丙氨酸测定试 剂盒(荧光分析法) 直接将干血斑样本打入微孔板孔中反应, 两种实验操作过 程如下述。
对照组的苯丙氨酸测定试剂盒釆用直接将干血斑样本打入微孔板中反应 (下称直接打孔法) 的操作步骤:
①校准品、 质控品、 待测样本的打孔: 用打孔钳从滤纸干血片上直接打下 直径为 3mm ( 1 /8 inch ) 的校准品、 质控品以及样本 (打下纸片须被血液浸透), 并依次放置于 "U"型板的微孔中, 每孔一片。 控制打孔的一致性, 使纸片尽量 一致;
②提取: 向每孔中加入配制好的 Phe提取液 80μ1, 并加贴封片。 在室温下, 緩慢振荡 30分钟;
③转移: 从" U"型板中转移 50μ1 Phe提取液至白色反应板对应的孔中;
④孵育: 再向白色反应板中加入茚三酮工作液 50μ1/孔, 混匀, 放入 60°C温 育箱中静置孵育 60分钟;
⑤加铜试剂: 孵育完成后, 立即加入 200μ1/孔冷的铜试剂工作液(刚从冰箱
取出, 不复温), 混匀, 静置 15分钟后检测;
⑥检测: 使用对应的程序进行检测, 检测工作在 20分钟内完成。 (激发波 长 390nm, 接收波长 486nm )。
实验组的苯丙氨酸测定试剂盒釆用血片支架将干血斑样本打入微孔板孔中 反应 (下称血片支架法) 的操作步骤:
①校准品、 质控品、 待测样本的打孔: 用滤纸干血片打孔机和血片支架从 滤纸干血片上打下并固定直径为 3mm ( 1/8 inch )的校准品、 质控品以及样本 (打 下纸片须被血液浸透), 并依次放置于白色反应板的微孔中, 每孔一片, 控制打 孔的一致性, 使纸片尽量一致;
②提取: 向每孔中加入配制好的 Phe提取液 120μ1, 在室温下緩慢振荡 30 分钟; 振荡结束后, 扔掉血片支架;
③孵育: 再向白色反应板中加入茚三酮工作液 50μ1/孔, 并加贴封片, 于恒 温孵育箱中 60°C静置孵育 60分钟;
④加铜试剂: 孵育完成后, 立即加入 150μ1/孔冷的铜试剂工作液(刚从冰 箱取出, 不复温), 混匀, 静置 15分钟后检测;
⑤检测: 使用对应的程序进行检测, 检测工作在 20分钟内完成, (激发波 长 390nm, 接收波长 486nm )。
实验组和对照组所测新生儿滤纸干血片样本中苯丙氨酸浓度值的比较见图 14, 相关系数为 r=0.9979。 实验组和对照组的分析性能指标如表 2所示:
表 2 实验组和对照组的分析性能指标
分析性能指标 血片支架法 直接打孔法 灵敏度 0.45 mg/dL 0.52 mg/dL
L-曱硫氨酸
0.32 mg/dL 0.28 mg/dL ( 20mg/dL )
特异性
L-组氨酸( 20mg/dL ) 0.23 mg/dL 0.31 mg/dL
L-鸟氨酸( 20mg/dL ) 0.30 mg/dL 0.25 mg/dL
L-精氨酸( 20mg/dL ) 0.33 mg/dL 0.28 mg/dL 高浓度 DL-酪氨酸
0.79 mg/dL 0.66 mg/dL ( 20mg/dL )
高浓度 L-亮氨酸
0.67 mg/dL 0.68 mg/dL ( 20mg/dL )
DL-酪氨酸 (大约
0.33 mg/dL 0.38 mg/dL 2mg/dL )
L-亮氨酸 (大约
0.22 mg/dL 0.23 mg/dL 4mg/dL ) 线性相关系数 0.9984 0.9967 准确性: (测定浓度为 1 Omg/dL
6.8% 8.6%
的 Phe国家标准品 (纸片))
批内不精密度 7.3% 8.5%
批间不精密度 8.7% 9.8%
反应时间 1.5h 1.5h
由图 14和表 2可知, 本实施例中, 其中 (1 ) 步骤①所述: "校准品、 质控 品、 待测样本的打孔", 釆用血片支架釆集滤纸干血片样本可通过滤纸干血片打 孔机实现自动化; 减少因长期手工使用打孔钳打孔带来的手部疼痛甚至手部畸 形; 减少手工打孔, 纸片飞脱带来的样本脱孔、 错调等不稳定因素。 (2 ) 步骤 ②所述 "提取", 血片支架法直接将样本带入白色反应板中, 不需要 "U" 型板 微孔板;减少一次性 "U"型板微孔板的成本或反复使用导致的非特异反应。 ( 3 ) 步骤③所述: "转移", 血片支架法只需直接丟弃后加入反应试剂, 较直接打孔 法节约了转移所需时间和转移所用吸嘴。
本发明通过使用血片支架对滤纸干血片样本进行取样, 结合现有以滤纸干 血片为检测样本的产前筛查、 新生儿疾病筛查等项目, 为多项检测提供高效、 便捷及稳妥的样本处理方法, 简化了检测程序, 实现检测自动化, 缩短检测时
间, 提高检测结果的稳定性、 精密度和灵敏度, 为产前筛查和新生儿疾病筛查 的普及奠定了良好的技术基础, 对我国的产前筛查和新生儿疾病筛查事业有着 重要的意义。
以上所揭露的仅为本发明的优选实施例而已, 当然不能以此来限定本发明 之权利范围, 因此依本发明申请专利范围所作的等同变化, 仍属本发明所涵盖 的范围。
Claims
1、 一种血片支架, 其特征在于: 包括条状的基片、 固接于所述基片正面的 多个支柱、 设于所述基片背面的齿条、 设于所述基片侧面的多个定位部, 所述 定位部与所述支柱——对应, 所述支柱末端部为锥体, 该锥体与支柱的主体之 间设有环形凹槽。
2、 根据权利要求 1所述的血片支架, 其特征在于: 所述支柱沿基片长度方 向沿直线等距排列。
3、 根据权利要求 1所述的血片支架: 其特征在于: 所述齿条的宽度小于所 述基片的宽度。
4、 根据权利要求 1所述的血片支架: 其特征在于: 所述支柱的主体部分为 锥形或圓柱形。
5、 根据权利要求 1所述的血片支架: 其特征在于: 所述定位部为三角槽或 弧形 1HJ槽或三角棱或弧形凸棱。
6、 一种血片支架组件, 其特征在于: 包括支架载座、 卡装于所述支架载座 的血片支架;所述血片支架包括条状的基片、 固接于所述基片正面的多个支柱, 所述支柱末端部为锥体, 该锥体与支柱的主体之间设有环形 1HJ槽; 所述支架载 座包括载座体、 并排平行设于所述载座体正面的多条平底主 槽, 所述主 1HJ槽 的一端离开其底面悬空设有前倒扣, 主凹槽的另一端离开其底面悬空设有尾凸 扣; 所述基片对应嵌装于所述主 1HJ槽。
7、 如权利要求 6所述的血片支架组件, 其特征在于: 每个主凹槽底面设有 内 1HJ槽, 内 1HJ槽与主 1HJ槽同向延伸, 所述基片的背面设有齿条, 所述齿条藏于 所述内 1HJ槽。
8、 根据权利要求 6所述的血片支架组件, 其特征在于: 所述前倒扣前端外 侧具有导入斜坡; 所述前倒扣两侧与所述主凹槽的长侧面之间具有间隙。
9、 根据权利要求 6所述的血片支架组件, 其特征在于: 所述载座体的底面 四周垂直于底面设有第一握持边, 所述载座体的顶面四周设有第二握持边。
10、 根据权利要求 9所述的血片支架组件, 其特征在于: 所述第一握持边 内侧设有内凹沿, 所述第二握持边的内侧设有与所述内凹沿配合的内突沿。
11、 根据权利要求 6所述的血片支架组件, 其特征在于: 所述支柱沿基片长 度方向沿直线等距排列。
12、 根据权利要求 7所述的血片支架组件, 其特征在于: 所述齿条的宽度 小于所述基片的宽度。
13 根据权利要求 6所述的血片支架组件, 其特征在于: 所述支柱的主体部 分为锥形或圓柱形。
14、 根据权利要求 6所述的血片支架组件, 其特征在于: 所述基片的侧面 设有多个定位部, 所述定位部与所述支柱——对应。
15、 根据权利要求 14所述的血片支架组件, 其特征在于: 所述定位部为三 角槽或弧形 1HJ槽或三角棱或弧形凸棱。
16、一种滤纸干血片打孔机,用于自动将血样纸片裁切并卡装于血片支架, 其特征在于: 包括设有立板的机座, 立板上安装有旋转电机, 旋转电机上安装 有偏心轮以及与偏心轮同轴转动的遮光片, 偏心轮一侧设有光电开关, 偏心轮 下方设有一端铰接于立板而另一端被所述偏心轮压住并可随偏心轮的旋转而摇 转的第一摇杆, 第一摇杆的自由端下表面压紧打孔上模上端, 打孔上摸下端与 打孔下模上端相对, 打孔上模和打孔下模之间具有放置待裁剪的血样纸片的间 隙, 所述打孔下模安装于与所述立板固接的模座, 模座开有可供打孔上模从中 上下运动的通孔, 所述模座与所述第一摇杆之间设有压缩弹簧, 所述压缩弹簧 套设于所述打孔上模外;
所述第一摇杆自由端还与一竖直设置的拉杆上端铰接, 所述拉杆下端与第 二摇杆一端铰接, 所述第二摇杆另一端连接于穿过一单向滚子轴承的轴, 所述 单向滚子轴承与一齿轮紧配, 所述血片支架位于所述打孔下模与所述齿轮之间 , 所述血片支架包括条状的基片、 固接于所述基片正面的多个支柱、 设于所述基 片背面的齿条, 所述支柱末端部为锥体, 该锥体与支柱的主体之间设有环形 1HJ 槽; 所述基片背面的齿条与所述齿轮啮合。
17、 如权利要求 16所述的滤纸干血片打孔机, 其特征在于: 所述支柱沿基 片长度方向沿直线等距排列。
18、 如权利要求 16所述的滤纸干血片打孔机, 其特征在于: 所述齿条的宽 度小于所述基片的宽度。
19、 根据权利要求 16所述的滤纸干血片打孔机, 其特征在于: 所述支柱的 主体部分为锥形或圓柱形。
20、 根据权利要求 16所述的滤纸干血片打孔机, 其特征在于: 所述基片侧 面设有的多个定位部, 所述定位部与所述支柱——对应。
21、 根据权利要求 20所述的滤纸干血片打孔机, 其特征在于: 所述定位部 为三角槽或弧形 1HJ槽或三角棱或弧形凸棱。
22、 如权利要求 16所述的滤纸干血片打孔机, 其特征在于: 所述模座内供 所述打孔上模从中上下穿过的通孔中安装有导向铜套, 所述打孔上模在所述导 向铜套内上下运动。
23、 如权利要求 16或 22所述的滤纸干血片打孔机, 其特征在于: 所述偏心 轮的初始位置为按逆时针方向偏离最高点一定角度, 并且所述偏心轮按逆时针 方向旋转。
24、 如权利要求 23所述的滤纸干血片打孔机, 其特征在于: 偏心轮的初始 位置按逆时针方向偏离最高点的角度为小于 45。 。
25、 如权利要求 16或 22所述的滤纸干血片打孔机, 其特征在于: 所述第一 摇杆自由端外表面设有压块, 并设有从该第一摇杆自由端和所述压块穿过的用 于压紧所述打孔上模顶端的螺栓。
26、 如权利要求 16或 22所述的滤纸干血片打孔机, 其特征在于: 所述拉杆 上端还连接有一个安装于立板并竖直设置于拉杆上方的拉伸弹簧。
27、一种血片支架在体外诊断试剂中的应用, 其特征在于, 包括以下步骤:
( 1 )用滤纸干血片打孔机和血片支架从滤纸干血片上打下直径为 3〜5mm 的血片, 备用;
( 2 )采用体外诊断试剂检测方法进行检测;
其中, 所述步骤(1 ) 中的血片支架包括: 条状的基片、 固接于所述基片正 面的多个支柱, 所述支柱末端部为锥体, 该锥体与支柱的主体之间设有环形 槽, 所述滤纸干血片打孔机从滤纸干血片上打下血片并将血片卡装在所述血片 支架的环形 1HJ槽。
28、如权利要求 27所述的血片支架在体外诊断试剂中的应用,其特征在于: 所述血片支架的支柱沿基片长度方向沿直线等距排列。
29、如权利要求 27所述的血片支架在体外诊断试剂中的应用,其特征在于: 所述基片背面设有齿条, 所述齿条的宽度小于所述基片的宽度。
30、如权利要求 27所述的血片支架在体外诊断试剂中的应用,其特征在于, 所述血片支架的支柱的主体部分为锥形或圓柱形。
31、如权利要求 27所述的血片支架在体外诊断试剂中的应用,其特征在于, 所述基片侧面设有的多个定位部, 所述定位部与所述支柱——对应。
32、如权利要求 31所述的血片支架在体外诊断试剂中的应用,其特征在于, 所述血片支架的定位部为三角槽或弧形 槽或三角棱或弧形凸棱。
33、如权利要求 27所述的血片支架在体外诊断试剂中的应用,其特征在于, 所述步骤(2 ) 中的体外诊断试剂检测方法为时间分辨荧光免疫分析法、 化学发 光法、 酶联免疫法或荧光分析法。
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CN 201320029373 CN203062861U (zh) | 2013-01-21 | 2013-01-21 | 一种滤纸干血片打孔机 |
CN201320029373.2 | 2013-01-21 | ||
CN201320102861.1 | 2013-03-07 | ||
CN 201320102861 CN203101109U (zh) | 2013-03-07 | 2013-03-07 | 一种全血采集卡 |
CN2013100874434A CN103196721A (zh) | 2013-03-19 | 2013-03-19 | 一种血片支架 |
CN201310087443.4 | 2013-03-19 | ||
CN201310124712.XA CN103217325B (zh) | 2013-04-11 | 2013-04-11 | 一种血片支架载座以及血片支架组件 |
CN201310124712.X | 2013-04-11 |
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