CN211877998U - A reagent preset device for thrombelastogram appearance - Google Patents

Abstract

The utility model provides a reagent presetting device for a thrombelastogram instrument, which comprises a presetting device body arranged in the thrombelastogram instrument, wherein the presetting device body comprises a mixing component, an object induction component, at least one reagent container for containing a reagent, a first fixing seat and a second fixing seat, and the second fixing seat is of a frame structure; the reagent container is fixed on the first fixed seat, and the first fixed seat is arranged on the second fixed seat; the blending component is arranged in the second fixing seat frame and corresponds to the position of the reagent container, and the object sensing component is arranged on the second fixing seat; the blending component is used for blending the reagents in the at least one reagent container, and the object sensing component senses whether the first fixing seat is arranged or not. Whether the first fixed seat provided with the reagent container is placed or not can be known through the object sensing assembly, so that the loss of the collected blood sample is avoided; the reagent needing to be uniformly mixed is stirred through the uniformly mixing component so as to ensure the accuracy of the detection structure.

Description

A reagent preset device for thrombelastogram appearance

Technical Field

The utility model relates to a clinical blood coagulation analysis technical field especially relates to a reagent preset device for thrombelastogram appearance.

Background

The thromboelastogram is a medical instrument for detecting whether blood can be normally coagulated, detects a blood coagulation process from the whole dynamic process such as platelet aggregation, blood coagulation, fibrinolysis and the like, and is an index reflecting dynamic changes of blood coagulation (including the formation speed of fibrin, the firmness of a dissolved state and a coagulated state, and elasticity).

These blood samples are usually collected in a reaction cuvette, and then subjected to operations such as solution preparation, liquid separation, dilution, and detection. The detection needs to use related reagents for blood coagulation analysis to start blood coagulation, and the reagents need to be put into a related device of the thromboelastogram instrument firstly, so that the reagents can be collected later and then added into a blood sample. Some reagents for starting blood coagulation are easy to precipitate in the placing process, and in the conventional thromboelastogram instrument, the reagents for detection are directly placed in the reagent tubes on the reagent tube groove rack, and the precipitation of the reagents can cause inaccurate detection results. In addition, the operation of adding the reagent into the thromboelastography device from the outside is usually manual, and the reagent tube is often forgotten to be put into the reagent tube groove, while the operation of the thromboelastography device is still performed, so that the loss of the collected blood sample and the material resource are caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, an object of the utility model is to provide a reagent presets device for thrombelastogram appearance, carries out the mixing to reagent container internal reagent through setting up the mixing subassembly, sets up whether the object response subassembly is laid on the second fixing base to the first fixing base that is equipped with reagent container and is responded to, can learn whether the reagent container is laid and is put in place, and then can decide to continue to carry on or interrupt follow-up detection work, avoids causing the loss and the material resources loss of the blood sample of gathering.

In order to achieve the above purpose, the utility model is realized by the following technical scheme.

The utility model provides a reagent presetting device for thrombelastogram appearance, including installing the presetting device body in thrombelastogram appearance, the presetting device body includes mixing subassembly, object response subassembly, at least one reagent container, first fixing base, the second fixing base that is used for holding reagent, the second fixing base is the framework structure; wherein the content of the first and second substances,

the reagent container is fixed on the first fixed seat, and the first fixed seat is placed on the second fixed seat; the blending component is arranged in the second fixing seat frame and corresponds to the position of the reagent container, and the object sensing component is arranged on the second fixing seat;

the blending component is used for blending at least one reagent in the reagent container, and the object sensing component senses whether the first fixing seat is arranged or not.

Preferably, the blending component comprises a motor, a magnet mounting seat connected with the motor and a magnet, wherein the south pole and the north pole of the magnet are respectively positioned at two ends of one surface of the magnet mounting seat;

(ii) a Wherein the content of the first and second substances,

the middle position of the magnet corresponds to the reagent container containing magnetic beads; the motor drives the magnet mounting seat to rotate, changes the magnetic fields at the two ends of the reagent container correspondingly, so that the magnetic beads rotate, and the reagent in the reagent container is stirred to realize uniform mixing of the reagent.

Preferably, the blending component further comprises a third fixed seat which is of an inwards concave structure, and the magnet installation seat is installed on a concave surface of the third fixed seat; the number of the reagent containers is two, and one end of each reagent container is opened.

Preferably, the object sensing assembly comprises an optical coupler and a stop block, the optical coupler is mounted on the second fixed seat, and the stop block is mounted on the first fixed seat; and after the first fixing seat is placed on the second fixing seat, the light is blocked by the stop block.

Preferably, a first groove is formed in the top surface of the second fixed seat, and one end of the first fixed seat is clamped into the first groove; the first fixing seat extends into the outer wall of the first groove and is tightly attached to the first groove.

Preferably, the object sensing assembly further comprises a movable block with a bottom end connected with the top end of the stop block, and a return spring sleeved outside the stop block; one end of the reset spring is connected to the movable block, and the other end of the reset spring is fixed on the second fixed seat; a first through hole is formed in the concave surface of the first groove, and the movable block is movably arranged in the first through hole; wherein the content of the first and second substances,

the first fixed seat is placed in the first groove, and the movable block and the stop block sink due to the gravity of the first fixed seat so as to block light of the optical coupler and compress the return spring; the first fixing seat is separated from the first groove, the return spring returns elastically to enable the movable block to return to one end to protrude outside the first through hole, and the stop block removes the light blocking of the optocoupler.

Preferably, the object induction component further comprises a nut, the stop block is cylindrical, an external thread is arranged at one end of the stop block, and the nut is arranged on the outer side of one end of the stop block in a rotating mode and located outside the wall of the second fixed seat so as to limit the reset displacement of the movable block.

Preferably, the object sensing assembly further comprises a fourth fixing seat, and the fourth fixing seat is fixed in the second fixing seat frame; the fourth fixing seat is provided with a second through hole with a large opening at one end and a small opening at the other end, the large opening end of the second through hole is communicated with the first through hole, and the reset spring abuts against the inner wall of the small opening end of the second through hole; wherein the content of the first and second substances,

when the first fixed seat is not placed in the first groove, one end of the movable block protrudes out of the first through hole; under the gravity of the first fixing seat, the movable block sinks to the position where the movable block protrudes outwards to the end of the first through hole and sinks into the first through hole completely, and the reset spring is compressed.

Preferably, one end of the movable block is of a cylindrical structure, the other end of the movable block is of a hemispherical structure, and the hemispherical structure is convexly arranged on the outer surface of the cylindrical structure; the cylindrical structure is movably arranged in the second through hole, and the hemispherical structure is movably arranged in the first through hole; wherein the content of the first and second substances,

when the first fixing seat is not placed in the first groove, the outer surface of the cylindrical structure abuts against the inner wall of the second fixing seat frame body;

the height of the activity space of the movable block provided by the second through hole is slightly larger than the height of the movable block protruding out of the first through hole.

Preferably, the device also comprises a fifth fixed seat and a code scanning assembly; the code scanning assembly comprises a bracket and a code scanner arranged on the bracket so as to scan the bar code information on the reagent container; the second fixing seat and the support are respectively arranged on the fifth fixing seat.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the utility model provides a reagent presetter for thrombelastogram appearance carries out the mixing through setting up the mixing subassembly to reagent container reagent in, set up whether the first fixing base of object response subassembly to being equipped with reagent container lays on the second fixing base and responds to, can learn whether reagent container lays and targets in place, and then can decide to continue to carry on or interrupt follow-up detection achievement, avoid causing the loss and the material resources loss of the blood sample of gathering, and presetter body simple structure, it is little to account for the space.

(2) The utility model discloses an among the preferred scheme, the mixing subassembly passes through the motor and drives the magnet mount pad and rotate, changes the magnetic field at the reagent container both ends of corresponding setting, and then can make the magnetic bead in this reagent container rotate, and then stirs reagent, simple structure, easy operation.

(3) The utility model discloses an among the preferred scheme, among the object response subassembly, the dog is cylindrically, and one end is equipped with the external screw thread, cooperatees with the nut, and the distance that shifts up when the restriction movable block resets is even the movable block together with the dog sink and the distance that the motion was done that resets equals to the operation of accurate control object response subassembly.

(4) The utility model discloses an among the preferred scheme, among the object response subassembly, still include the fourth fixing base, movable block one end is cylindrical structure, and the other end is hemispherical structure, and when the movable block resets and shifts up the motion, the cylindrical structure of movable block supports the second fixing base, and then the distance that shifts up when the restriction movable block resets.

The above description is only an outline of the technical solution of the present invention, and some embodiments are described in detail below in order to make the technical means of the present invention clearer and to implement the technical solution according to the content of the description. The present invention is described in detail by the following examples.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic perspective view of the preset device body of the present invention;

fig. 2 is an exploded schematic view of the preset device body of the present invention;

fig. 3 is a cross-sectional view of the body of the preset device of the present invention;

fig. 4 is a schematic perspective view of an object sensing assembly when the nut is installed in an embodiment of the present invention.

In the figure: 800. presetting a device body;

810. a blending component; 811. a motor; 812. a magnet mounting base; 813. a magnet; 814. a third fixed seat; 820. an object sensing assembly; 821. an optical coupler; 822. a stopper; 823. a movable block; 8231. a cylindrical structure; 8232. a hemispherical structure; 824. a return spring; 825. a fourth fixed seat; 826. a nut; 8251. a second through hole; 830. a reagent container; 840. a first fixed seat; 841. a second groove; 850. a second fixed seat; 851. a first groove; 8511. a first through hole; 860. a fifth fixed seat; 870. a code scanning component; 871. a support; 872. and a code scanner.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

As shown in fig. 1 and 2, the utility model provides a reagent presetting device for a thrombelastogram apparatus, including the presetting device body 800 installed in the thrombelastogram apparatus, the presetting device body 800 includes a mixing component 810, an object induction component 820, at least one reagent container 830 for containing reagent, a first fixing seat 840, a second fixing seat 850, the second fixing seat 850 is a frame structure; wherein the content of the first and second substances,

the reagent vessel 830 is fixed to the first fixing holder 840, and the first fixing holder 840 is seated on the second fixing holder 850; the blending component 810 is disposed in the frame of the second fixing base 850 and corresponds to the reagent container 830, and the object sensing component 820 is disposed on the second fixing base 850;

the mixing component 810 is used for mixing the reagents in at least one of the reagent containers 830, and the object sensing component 820 senses whether the first fixing seat 840 is placed.

As shown in fig. 2, a first groove 851 is disposed on a top surface of the second fixing seat 850, and one end of the first fixing seat 840 is inserted into the first groove 851 for installation. The first fixing base 840 extends into the outer wall of the first groove 851 and clings to the first groove 851. In an embodiment, the first fixing base 840 is a rectangular parallelepiped, the cross section of the first groove 851 is rectangular, and five outer sidewalls of the first fixing base 840 are tightly attached to the first groove 851, so that the second fixing base 850 can firmly fix the first fixing base 840.

The blending component 810 comprises a motor 811, a magnet mounting seat 812 connected with the motor 811, and a magnet 813, wherein the south pole and the north pole of the magnet 813 are respectively positioned at two ends of one surface of the magnet mounting seat 812; wherein the content of the first and second substances,

the middle position of the magnet 813 corresponds to the reagent container 830 containing magnetic beads (not shown); the motor 811 drives the magnet mounting base 812 to rotate, the two opposite magnets 813 rotate, and magnetic fields at two ends of the corresponding reagent container 830 are changed, so that the magnetic beads rotate to stir the reagent in the reagent container 830, and thus, the reagent is uniformly mixed.

The blending component 810 further comprises a third fixing seat 814, the third fixing seat 814 is of a concave structure, and the magnet mounting seat 812 is mounted on a concave surface of the third fixing seat 814.

It should be understood that, if the reagent for blood coagulation detection includes a mixing operation required before detection and a mixing operation not required, a mixing assembly 810 is provided corresponding to the reagent container 830 containing the reagent requiring the mixing operation. If more than two reagents needing blending operation exist, a plurality of blending assemblies 810 are arranged in a matching way, and the blending assemblies 810 are separated by a certain distance or provided with magnetic field isolation parts so as to avoid the interference between magnetic fields.

In an embodiment, the number of the reagent containers 830 is two, and only one reagent needs to be mixed before detection, and a mixing component 810 is correspondingly disposed. The reagent container 830 has an opening at one end, and reagents or magnetic beads are added from the opening end of the reagent container 830.

Furthermore, two second grooves 841 are formed in the first fixing seat 841 and used for accommodating the reagent container 830, and the contour of the second grooves 841 is attached to the reagent container 830 so as to clamp the reagent container 830 without shaking.

As shown in fig. 2, the object sensing assembly 820 includes an optical coupler 821 and a stopper 822, the optical coupler 821 is mounted on the second fixing base 850, and the stopper 822 is mounted on the first fixing base 840; after the first fixing seat 840 is placed on the second fixing seat 850, the light of the optocoupler 821 is blocked by the stop 822. After the first fixing seat 840 is separated from the second fixing seat 850, the stopper 822 is moved away together with the first fixing seat 840 to be away from the optical coupler 821, and then the light blocking of the optical coupler 821 is removed, so that whether the first fixing seat 840 provided with the reagent container 830 is placed on the second fixing seat 850 can be monitored according to the light blocking condition of the stopper 822 on the optical coupler 821, and the placement confirmation work is realized, so that the loss of collected blood samples and material resources caused by the continuous coagulation detection operation is avoided.

In one embodiment, the object sensing assembly 820 further includes a movable block 823 having a bottom end connected to a top end of the stop 822, and a return spring 824 externally sleeved on the stop 822; one end of the return spring 824 is connected to the movable block 823, and the other end is fixed to the second fixed seat 840; a first through hole 8511 is formed in the concave surface of the first groove 851, and the movable block 823 is movably arranged in the first through hole 8511; wherein the content of the first and second substances,

the first fixing base 840 is placed in the first groove 851, and the gravity of the first fixing base 840 makes the movable block 823 and the stopper 822 sink to block light from the optical coupler 821 and compress the return spring 824; the first fixing seat 840 is separated from the first groove 851, the return spring 824 is elastically restored to return the movable block 823 to a position where one end of the movable block 823 protrudes out of the first through hole 8511, and the stopper 822 removes the light blocking function of the optical coupler 821. In an embodiment, one end of the reset spring 824 is connected to the first through hole 8511, when the stopper 822 sinks, one end of the reset spring 824 sinks along with the other end of the reset spring 824, and the other end of the reset spring is fixed without displacement, so as to be compressed, the stopper 822 sinks continuously under the gravity of the first fixing seat 840 until the first fixing seat 840 presses the top end of the portion, protruding out of the first through hole 8511, of the stopper 822 into the first through hole 8511, and at this time, the reset spring 824 deforms greatly and has a certain elastic restoring force.

When the first fixing base 840 is separated from the second fixing base 850, the stopper 822 can be restored to the position without the gravity of the first fixing base 840 by the elastic restoring force of the restoring spring 824, and the movable block 823 cannot be completely ejected out of the first through hole 8511.

After the first fixing seat 840 is placed in the first groove 851, the elastic restoring force of the restoring spring 824 is less than or equal to the gravity of the first fixing seat 840; that is, when the first fixing block 840 is snapped into the first groove 851, the elastic restoring force of the return spring 824 is not enough to move the stopper 822 under the weight of the first fixing block 840.

As shown in fig. 4, in an embodiment, the object sensing assembly 820 further includes a nut 826, the stopper 822 has a cylindrical shape, an end of the stopper 822 is provided with an external thread, and the nut 826 is screwed outside the end of the stopper 822 provided with the external thread and outside the wall of the second fixing seat 859 to limit the reset displacement of the movable block 823. Further, when the first fixing seat 840 is not disposed in the first groove 851, the nut 826 is closely attached to the second fixing seat 859. When the first fixing seat 840 is seated in the first groove 851, the nut 826 sinks as the movable block 823 sinks. When the first fixing seat 840 is separated from the first groove 851, the return spring 824 is elastically extended to return the movable block 823, at this time, the nut 826 is used to limit the upward movement of the movable block 823 when returning, and when the nut 826 abuts against the second fixing seat 859, the continuous movement of the movable block 823 is further limited, so that the downward movement of the movable block 823 is equal to the return movement.

As shown in fig. 2 and 3, in yet another embodiment, nut 826 is not included. The object sensing assembly 820 further includes a fourth fixing seat 825, an outer wall of one side of the fourth fixing seat 825 is connected to an inner wall of the frame body of the second fixing seat 850, and is further fixed in the frame body of the second fixing seat 850; the fourth fixing seat 825 is provided with a second through hole 8251 with a large opening at one end and a small opening at the other end, the large opening end of the second through hole 8251 is communicated with the first through hole 8511, and one end of the return spring 824 abuts against the inner wall of the small opening end of the second through hole 8251 so as to be fixed on the second fixing seat 850; wherein the content of the first and second substances,

when no external force is applied, one end of the movable block 823 protrudes out of the first through hole 8511; under the gravity of first fixing base 840, movable block 823 sinks to movable block 823 evaginates in the top of the one end of first through-hole 8511 sinks completely in first through-hole 8511, just reset spring 824 is compressed, the dog 822 is right the opto-coupler 821 is in the light, and at this moment, reagent container 830 realizes laying. When the first fixing base 840 is removed again, the movable block 823 moves upward together with the stopper 822 under the restoring force of the return spring 824, so that the stopper 822 removes the light blocking of the optical coupler 821, that is, the reagent container 830 is not mounted.

One end of the movable block 823 is a cylindrical structure 8231, and the other end is a hemispherical structure 8232, and the hemispherical structure 8232 is convexly arranged on the outer surface of the cylindrical structure 8231; the cylindrical structure 8231 is movably disposed in the second through hole 8251, and the hemispherical structure 8232 is movably disposed in the first through hole 8511; when the first fixing seat 840 is not disposed in the first groove 851, the outer surface of the cylindrical structure 8231 abuts against the inner wall of the frame of the second fixing seat 850. The second through hole 8251 is cylindrical, and the shape and the size of the second through hole 8251 are consistent with the shape and the size of the outer contour of the cylindrical structure of the movable block 823. When the first fixing seat 840 is placed in the first groove 851, the cylindrical structure 8231 moves downward to be away from the inner wall of the frame body of the second fixing seat 850; when the first fixing seat 840 is separated from the first groove 851, the return spring 824 is elastically extended to return the movable block 823, and at this time, the movable block 823 moves upward until the cylindrical structure 8231 abuts against the inner wall of the frame of the second fixing seat 850, and the movable block 823 stops moving, even if the return displacement and the subsidence of the movable block 823 are equal.

The height of the second through hole 8251, which is used for connecting the movable block 823 with the return spring 824, is slightly greater than the height of the movable block 823 protruding out of the first through hole 8511, so that after the first fixing seat 840 is placed in the first groove 851, the bottom end of the first fixing seat 840 can abut against the concave surface of the first groove 851, the security and the stability of the first fixing seat 840 are realized, and the reagent container 830 is ensured not to shake.

In one embodiment, the device further comprises a fifth fixing seat 860 and a code scanning assembly 870; the code scanning assembly 870 comprises a bracket 871 and a code scanner 872 arranged on the bracket 871, so as to scan the code information on the reagent container 830 and record the information into the system, so as to record the information and check the information. The second fixing seat 850 and the bracket 871 are respectively disposed on the fifth fixing seat 860. The fifth fixing seat 860 is used for being mounted on the inner wall of the thrombelastogram instrument.

The utility model provides a reagent presetter for thrombelastogram appearance carries out the mixing through setting up the mixing subassembly to reagent container reagent in, set up whether the first fixing base of object response subassembly to being equipped with reagent container lays on the second fixing base and responds to, can learn whether reagent container lays and targets in place, and then can decide to continue to carry on or interrupt follow-up detection achievement, avoid causing the loss and the material resources loss of the blood sample of gathering, and presetter body simple structure, it is little to account for the space.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields where the invention is suitable, and further modifications may readily be made by those skilled in the art, and the invention is thus not limited to the specific details and examples shown herein, without departing from the general concept defined by the claims and their equivalents.

Claims (10)

1. The reagent presetting device for the thromboelastogram instrument comprises a presetting device body (800) arranged in the thromboelastogram instrument, and is characterized in that the presetting device body (800) comprises a uniformly mixing assembly (810), an object sensing assembly (820), at least one reagent container (830) for containing a reagent, a first fixing seat (840) and a second fixing seat (850), wherein the second fixing seat (850) is of a frame structure; wherein the content of the first and second substances,

the reagent container (830) is fixed on the first fixing seat (840), and the first fixing seat (840) is arranged on the second fixing seat (850); the blending component (810) is arranged in the frame body of the second fixed seat (850) and corresponds to the position of the reagent container (830), and the object sensing component (820) is arranged on the second fixed seat (850);

the blending component (810) is used for blending the reagents in at least one reagent container (830), and the object sensing component (820) senses whether the first fixing seat (840) is arranged.

2. The reagent presetting device for the thrombelastogram instrument according to the claim 1, wherein the mixing component (810) comprises a motor (811), a magnet mounting seat (812) connected with the motor (811), and a magnet (813), wherein the south pole and the north pole of the magnet (813) are respectively positioned at two ends of one surface of the magnet mounting seat (812); wherein the content of the first and second substances,

the middle position of the magnet (813) corresponds to the reagent container (830) containing magnetic beads; the motor (811) drives the magnet mounting seat (812) to rotate, changes the magnetic fields at two ends of the corresponding reagent container (830), so that the magnetic beads rotate, and the reagents in the reagent container (830) are stirred to realize uniform mixing of the reagents.

3. The reagent presetting device for the thrombelastogram instrument according to claim 2, wherein the mixing component (810) further comprises a third fixing seat (814), the third fixing seat (814) is of a concave structure, and the magnet mounting seat (812) is mounted on a concave surface of the third fixing seat (814); the number of the reagent containers (830) is two, and one end of each reagent container (830) is open.

4. The reagent presetting device for a thrombelastogram machine according to any one of claims 1-3, characterized in that the object sensing component (820) comprises an optical coupler (821), a stop block (822), the optical coupler (821) is installed on the second fixing base (850), the stop block (822) is installed on the first fixing base (840); after the first fixing seat (840) is placed on the second fixing seat (850), the stop block (822) blocks light of the optical coupler (821).

5. The reagent presetting device for the thrombelastogram instrument according to claim 4, wherein the second fixing seat (850) is provided with a first groove (851) on the top surface, and one end of the first fixing seat (840) is clamped into the first groove (851); the outer wall of the first fixed seat (840) extending into the first groove (851) is tightly attached to the first groove (851).

6. The reagent presetting device for the thrombelastogram machine as claimed in claim 5, wherein the object sensing component (820) further comprises a movable block (823) with a bottom end connected with the top end of the block (822), a return spring (824) externally sleeved on the block (822); one end of the return spring (824) is connected to the movable block (823), and the other end of the return spring is fixed to the second fixed seat (850); a first through hole (8511) is formed in the concave surface of the first groove (851), and the movable block (823) is movably arranged in the first through hole (8511); wherein the content of the first and second substances,

the first fixing seat (840) is placed in the first groove (851), and the movable block (823) and the stop block (822) sink due to the gravity of the first fixing seat (840) so as to block light of the optical coupler (821) and compress the return spring (824); the first fixing seat (840) is separated from the first groove (851), the return spring (824) returns elastically to return the movable block (823) to a position where one end protrudes out of the first through hole (8511), and the stop block (822) removes the light blocking to the optical coupler (821).

7. The reagent presetting device for the thrombelastogram instrument as claimed in claim 6, wherein the object sensing component (820) further comprises a nut (826), the block (822) is cylindrical, an external thread is provided at one end of the block (822), the nut (826) is screwed outside one end of the block (822) and outside the wall of the second fixed seat (850) to limit the reset displacement of the movable block (823).

8. The reagent preparation device for a thromboelastography instrument according to claim 6, wherein the object sensing assembly (820) further comprises a fourth fixing seat (825), the fourth fixing seat (825) being fixed within the second fixing seat (850) frame; the fourth fixing seat (825) is provided with a second through hole (8251) with a large opening at one end and a small opening at the other end, the large opening end of the second through hole (8251) is communicated with the first through hole (8511), and the reset spring (824) abuts against the inner wall of the small opening end of the second through hole (8251); wherein the content of the first and second substances,

when the first fixing seat (840) is not arranged in the first groove (851), one end of the movable block (823) protrudes out of the first through hole (8511); under the gravity of the first fixing seat (840), the movable block (823) sinks to the end, protruding outwards to the first through hole (8511), of the movable block (823) sinks into the first through hole (8511) completely, and the return spring (824) is compressed.

9. The reagent presetting device for the thrombelastogram instrument according to the claim 8, characterized in that, the movable block (823) has a cylindrical structure (8231) at one end and a semispherical structure (8232) at the other end, and the semispherical structure (8232) is protruded on the outer surface of the cylindrical structure (8231); the cylindrical structure (8231) is movably arranged in the second through hole (8251), and the hemispherical structure (8232) is movably arranged in the first through hole (8511); wherein the content of the first and second substances,

when the first fixing seat (840) is not arranged in the first groove (851), the outer surface of the cylindrical structure (8231) props against the inner wall of the frame body of the second fixing seat (850);

the height of the activity space of the movable block (823) provided by the second through hole (8251) is slightly larger than the height of the movable block (823) protruding out of the first through hole (8511).

10. The reagent presetting device for a thrombelastogram machine as claimed in claim 1, further comprising a fifth fixing seat (860), a code scanning assembly (870); the code scanning assembly (870) comprises a support (871) and a code scanner (872) arranged on the support (871) so as to scan the bar code information on the reagent container (830); the second fixing seat (850) and the bracket (871) are respectively arranged on the fifth fixing seat (860).

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