CN220854905U - Reagent supply device and sample analyzer - Google Patents

Abstract

The embodiment of the utility model discloses a reagent feeding device and a sample analyzer, wherein the reagent feeding device comprises a mounting frame, a reagent needle module, a positioning module and a correcting piece, wherein the mounting frame is provided with a containing cavity for containing a reagent bottle, the reagent needle module is arranged on the mounting frame in a sliding manner along a first direction and is used for sucking reagent in the reagent bottle, the positioning module and the correcting piece are relatively arranged in the containing cavity, the reagent bottle is inserted into the containing cavity along a second direction, the correcting piece can elastically push the reagent bottle along a third direction so as to enable the reagent bottle to be attached to the positioning module, the bottle mouth of the reagent bottle and a needle body of the reagent needle module are arranged in a right-facing manner, and the first direction, the second direction and the third direction are mutually arranged at an included angle, so that the reagent bottle can be inserted into the reagent bottle as required, the sucking effect is ensured, and the working reliability of the reagent feeding device and the sample analyzer is improved.

Description

Reagent supply device and sample analyzer

Technical Field

The present utility model relates to the field of reagent supply technology, and in particular, to a reagent supply device and a sample analyzer.

Background

The sample analyzer carries out statistical analysis on various cells in a blood sample by means of reagents and provides basis for diagnosis and treatment of doctors, and the sample analyzer mainly comprises a reagent supply module and a detection module, wherein a containing cavity is arranged in the reagent supply module and is used for containing a reagent bottle, a reagent needle of the reagent supply module stretches into the reagent bottle to absorb the reagents, and then the reagent is supplied to the detection module for sample detection.

In order to facilitate the user to take and put the reagent bottle, most of the space is reserved between the bottle wall of the reagent bottle and the cavity wall of the accommodating cavity, the problem that the bottle mouth of the placed reagent bottle is not aligned with the reagent needle possibly occurs, and the reagent needle is pricked outside the bottle wall or the bottle wall of the reagent bottle after being lowered, so that the suction of the reagent is influenced.

Disclosure of utility model

The utility model aims to provide a reagent supply device and a sample analyzer, and aims to solve the technical problem that the reagent is sucked by the conventional reagent needle which is pricked to the wall of a reagent bottle or out of the wall of the bottle after descending.

In a first aspect, the present utility model provides a reagent supplying apparatus comprising: the reagent bottle comprises a mounting frame, a reagent needle module, a positioning module and a guide piece, wherein the mounting frame is provided with a containing cavity, the containing cavity is used for containing a reagent bottle, the reagent needle module is arranged on the mounting frame in a sliding mode along a first direction and is used for absorbing reagents in the reagent bottle, the positioning module and the guide piece are arranged in the containing cavity relatively, the reagent bottle is inserted in the containing cavity along a second direction, the guide piece can elastically push the reagent bottle along a third direction, so that the reagent bottle is attached to the positioning module, the bottle mouth of the reagent bottle is opposite to the needle body of the reagent needle module, and the first direction, the second direction and the third direction are mutually inclined.

Preferably, the guide member includes a first elastic section connected to the mounting frame, a second elastic section connected to the first elastic section and disposed at an included angle with the first elastic section, and a contact portion formed between the first elastic section and the second elastic section, in which the reagent bottle is inserted into the accommodating cavity, the reagent bottle can push the contact portion to elastically deform the first elastic section, and in a free state, the first elastic section can elastically reset to push the contact portion to contact with the reagent bottle, so that the reagent bottle is positioned along the third direction to be attached to the positioning module.

Preferably, the mounting frame comprises a first side wall, a second side wall, a third side wall and a bottom wall, wherein the first side wall, the second side wall, the third side wall and the bottom wall jointly enclose into the accommodating cavity, the guide piece and the positioning module are respectively arranged on the first side wall and the third side wall, and the bottom wall is inclined relative to the working face, so that the reagent bottle can move towards being close to the second side wall under the action of thrust and gravity, and one side of the reagent bottle is in butt joint with the second side wall.

Preferably, the positioning module is a read-write module, the read-write module comprises a mounting plate and a read-write plate arranged on the mounting plate, the read-write plate is arranged on the mounting frame through the mounting plate, the guide piece elastically pushes the reagent bottle along the third direction so as to enable the reagent bottle to be in contact with the mounting plate, and the read-write plate is used for reading information of a chip on the reagent bottle.

Preferably, the tip of the needle body is a blunted structural member.

Preferably, the reagent needle module comprises a driving mechanism, an elastic piece and a needle body, wherein the needle body is slidably arranged on the driving mechanism, the elastic piece is sleeved on the needle body and is elastically connected with the driving mechanism and the needle body, the elastic piece is elastically deformed when the needle tip of the needle body is abutted against the bottom of the reagent bottle, and the needle body slides relative to the driving mechanism.

Preferably, the reagent supplying apparatus further includes a connecting plate slidably disposed along the first direction on the mounting frame, and the driving mechanism is connected to the connecting plate, so that the driving mechanism can move along a line where the first direction is located under the guidance of the connecting plate.

Preferably, the driving mechanism comprises a shifting block and an elastic limiting part arranged on the shifting block, the mounting frame is sequentially provided with an upper limiting groove and a lower limiting groove along the first direction, the shifting block is pushed to move along the straight line where the first direction is located, and the elastic limiting part can be clamped with the groove wall of the upper limiting groove or the groove wall of the lower limiting groove so that the needle body is separated from or inserted into the reagent bottle.

Preferably, the mounting frame comprises a plurality of fixing frames, the accommodating cavities are provided with a plurality of fixing frames and are respectively arranged in the fixing frames, and the reagent bottles are provided with a plurality of accommodating cavities in a one-to-one correspondence manner.

In a second aspect, the present utility model further provides a sample analyzer, where the sample analyzer includes a detection module and the reagent supply device according to any one of the above embodiments, the reagent supply device is configured to extract a reagent in the reagent bottle, and the detection module is in communication with the reagent supply device.

The embodiment of the utility model has the following beneficial effects:

By adopting the reagent supply device, the reagent needle module slides on the mounting frame along the first direction and is used for sucking the reagent in the reagent bottle, the positioning module and the guide piece are oppositely arranged in the accommodating cavity, and the elastic piece pushes the reagent bottle along the third direction in the process of inserting the reagent bottle into the accommodating cavity along the second direction, so that the reagent bottle is attached to the positioning module, the bottle mouth of the reagent bottle is opposite to the needle body of the reagent needle module, the needle body can be inserted into the reagent bottle as expected to suck the reagent, and the working reliability of the reagent supply device is improved.

When the reagent supply device is applied to a sample analyzer, the reagent bottle is pushed against the reagent bottle along the third direction in the process of inserting the reagent bottle into the accommodating cavity along the second direction, so that the reagent bottle is attached to the positioning module, the bottle mouth of the reagent bottle is opposite to the needle body of the reagent needle module, the needle body can be inserted into the reagent bottle as required to suck the reagent, and the working reliability of the sample analyzer is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic diagram of a reagent feeding apparatus according to one embodiment.

FIG. 2 is a schematic view showing a part of the structure of the reagent supplying apparatus shown in FIG. 1 in a first state.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

FIG. 4 is an exploded view of the reagent supplying apparatus shown in FIG. 2.

FIG. 5 is a front view of the reagent supplying apparatus shown in FIG. 2.

Fig. 6 is a sectional view of B-B in fig. 5.

FIG. 7 is a plan view of the reagent supplying apparatus shown in FIG. 2.

Fig. 8 is a cross-sectional view of C-C in fig. 7.

FIG. 9 is a schematic view showing a part of the structure of the reagent supplying apparatus shown in FIG. 2 in a second state.

FIG. 10 is a side view of the reagent supplying apparatus shown in FIG. 9.

Fig. 11 is a sectional view D-D of fig. 10.

Reference numerals: 10. a mounting frame; 11. a receiving chamber; 12. a first sidewall; 13. a second sidewall; 14. a third sidewall; 15. a bottom wall; 16. a guide rail; 17. a fixing frame; 20. a reagent bottle; 30. a connecting plate; 31. a through hole; 32. an upper anti-collision rubber plug; 33. a lower anti-collision rubber plug; 41. an upper limit groove; 42. a lower limit groove; 100. a reagent needle module; 110. a driving mechanism; 111. a shifting block; 112. an elastic limit part; 1121. a marble; 113. a carrying plate; 1131. a bar-shaped groove; 120. an elastic member; 130. a needle body; 200. a read-write module; 210. a mounting plate; 220. a read-write board; 300. a guide member; 310. a first elastic section; 320. a second elastic section; 330. an abutting portion; 400. a sensing member; 500. and a connecting piece.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The embodiment of the utility model provides a reagent supply device, which ensures that a needle body can be inserted into a reagent bottle as required to suck reagent by adjusting the position of the reagent bottle to enable the bottle mouth of the reagent bottle to be aligned with the needle body of a reagent needle module, and improves the working reliability of the reagent supply device.

Referring to fig. 1 to 8, the reagent supplying apparatus of an embodiment includes a mounting frame 10, a reagent needle module 100, a positioning module and a guiding member 300, the mounting frame 10 is provided with a containing cavity 11, the containing cavity 11 is used for containing a reagent bottle 20, the reagent needle module 100 is slidably disposed on the mounting frame 10 along a first direction and is used for sucking reagent in the reagent bottle 20, the positioning module and the guiding member 300 are relatively disposed in the containing cavity 11, the reagent bottle 20 is inserted into the containing cavity 11 along a second direction, the guiding member 300 can elastically push the reagent bottle 20 along a third direction so that the reagent bottle 20 is attached to the positioning module, so that a bottle mouth of the reagent bottle 20 and a needle body 130 of the reagent needle module 100 are opposite to each other, the first direction, the second direction and the third direction are disposed at an included angle, the first direction is a direction of X shown in fig. 1, the second direction is a direction of Y shown in fig. 1, and the third direction is a direction of Z shown in fig. 1.

It can be understood that the diameter of the mouth of the reagent bottle 20 is smaller, and if the deviation between the position of the mouth of the reagent bottle 20 and the position of the needle body 130 is larger, the needle body 130 can easily pierce the mouth wall or the outer wall of the mouth of the reagent bottle 20, so that the reagent extraction is affected.

Because the reagent needle module 100 slides on the mounting frame 10 along the first direction in the embodiment and is used for sucking the reagent in the reagent bottle 20, the positioning module and the guide member 300 are relatively arranged in the accommodating cavity 11, and the elastic member 120 pushes the reagent bottle 20 along the third direction in the process of inserting the reagent bottle 20 into the accommodating cavity 11 along the second direction, so that the reagent bottle 20 is attached to the positioning module, the bottle mouth of the reagent bottle 20 and the needle body 130 of the reagent needle module 100 are opposite to each other, the needle body 130 can be inserted into the reagent bottle 20 as desired to suck the reagent, and the working reliability of the reagent supply device is improved.

In an embodiment, referring to fig. 4 and 6, the guide member 300 includes a first elastic section 310 connected to the mounting frame 10, a second elastic section 320 disposed at an angle with the first elastic section 310, and an abutting portion 330 formed between the first elastic section 310 and the second elastic section 320, in which the reagent bottle 20 can push the abutting portion 330 to elastically deform the first elastic section 310 during the process of inserting the reagent bottle 20 into the accommodating cavity 11 along the second direction, and in a free state, the first elastic section 310 can elastically reset to push the abutting portion 330 against the reagent bottle 20, so as to position the reagent bottle 20 on the positioning module along the third direction in a fitting manner, so that the mouth of the reagent bottle 20 and the needle body 130 of the reagent needle module 100 are centrally disposed, and the reagent bottle 20 is conveniently sucked by inserting the needle body 130 into the reagent bottle 20.

In another embodiment, the guide member 300 includes a first elastic section 310 connected to the mounting frame 10 and an abutting portion 330 connected to the first elastic section 310, in the process of inserting the reagent bottle 20 into the accommodating cavity 11, the reagent bottle 20 can push the abutting portion 330 to elastically deform the first elastic section 310, and in a free state, the first elastic section 310 can elastically reset to push the abutting portion 330 to abut against the reagent bottle 20, so that the reagent bottle 20 is attached to the positioning module along the third direction, the use of the second elastic section 320 is reduced, and the manufacturing cost can be saved.

In an embodiment, the mounting frame 10 includes a first side wall 12, a second side wall 13, a third side wall 14 and a bottom wall 15, the first side wall 12, the second side wall 13, the third side wall 14 and the bottom wall 15 enclose together into a containing cavity 11, the guide member 300 and the positioning module are respectively mounted on the first side wall 12 and the third side wall 14, and the bottom wall 15 is inclined relative to the working surface, so that the reagent bottle 20 can move towards the second side wall 13 under the action of thrust and gravity, so that one side of the reagent bottle 20 is abutted against the second side wall 13, the fitting and positioning of the reagent bottle 20 in the second direction are realized, and the coincidence of the center of the bottle mouth of the reagent bottle 20 and the center of the needle point of the needle body 130 in the straight line where the first direction is located is further ensured.

It should be noted that, the bottom wall 15 is inclined with respect to the working surface, so that the reagent bottle 20 moves towards the second side wall 13 under the dual action of gravity and thrust of the user, and compared with the bottom wall 15 which is horizontally arranged with respect to the working surface, the thrust of the user pushing the reagent bottle 20 can be saved.

Simultaneously, the bottom wall 15 inclines relative to the working surface, so that the lowest position of the liquid level in the reagent bottle 20 is positioned close to the second side wall 13, the reagent can be sucked out by the reagent needle, and the waste of the reagent is avoided.

In an embodiment, the positioning module is a read-write module 200, the read-write module 200 includes a mounting board 210 and a read-write board 220 disposed on the mounting board 210, specifically, the read-write board 220 is a radio frequency read-write board 220, the read-write board 220 is mounted on the mounting board 10 through the mounting board 210, the alignment member 300 elastically pushes the reagent bottle 20 along a third direction, so that the reagent bottle 20 is abutted to the mounting board 210, the read-write board 220 is used for reading information of a chip on the reagent bottle 20, and the type of the reagent in the reagent bottle 20 can be known according to the information on the chip.

In another embodiment, the positioning module is a positioning protrusion, a user firstly uses a handheld reader-writer to read and write chip information on the reagent bottle 20, then places the reagent bottle 20 into the accommodating cavity 11, and the guide member 300 can elastically push the reagent bottle 20 along the third direction, so that the reagent bottle 20 is attached to the positioning protrusion, and the bottle mouth of the reagent bottle 20 is opposite to the needle body 130 of the reagent needle module 100. The mode needs to read and write the chip information on the reagent bottle manually, so that time is wasted, the preferred positioning module is the read-write module 200, the chip information on the reagent bottle 20 is not required to be read and written before the reagent bottle 20 is inserted into the accommodating cavity 11, and the working efficiency of the reagent co-feeding device is improved.

In an embodiment, the needle tip of the needle body 130 is a passivation structure, so that the needle tip of the needle body 130 is prevented from injuring a user during the assembly and the later maintenance, and therefore, the risk of biohazard can be reduced by performing passivation on the needle tip of the needle body 130 on the premise of ensuring the puncture function of the needle body 130.

In an embodiment, referring to fig. 4 to 11, the reagent needle module 100 includes a driving mechanism 110, an elastic member 120 and a needle body 130, specifically, the elastic member 120 is a compression spring, the needle body 130 is slidably disposed on the driving mechanism 110, the elastic member 120 is sleeved on the needle body 130, and is elastically connected to the driving mechanism 110 and the needle body 130, when the tip of the needle body 130 abuts against the bottom of the reagent bottle 20, the elastic member 120 is elastically deformed, and the needle body 130 slides relative to the driving mechanism 110.

It can be understood that when the needle tip of the needle body 130 is abutted against the bottom of the reagent bottle 20, the bottom of the reagent bottle 20 pushes the needle body 130 upwards, so that the needle body 130 can slide upwards relative to the driving rod mechanism, the elastic member 120 is compressed in the process of sliding upwards, and the elastic member 120 pushes the needle body 130 downwards, so that the needle tip of the needle body 130 is abutted against the bottom of the reagent bottle 20, the needle tip of the needle body 130 is always abutted against the bottom of the reagent bottle 20 when the needle body 130 is in the reagent bottle 20, the needle body 130 can absorb all reagents in the reagent bottle 20, and reagent waste is avoided.

In an embodiment, the reagent supplying apparatus further includes a connecting plate 30 and a guide rail 16, the guide rail 16 is mounted on the mounting frame 10 along a first direction, the connecting plate 30 is slidably disposed on the mounting frame 10 along the first direction, specifically, the connecting plate 30 is slidably disposed on the guide rail 16 along the first direction, the driving mechanism 110 is connected to the connecting plate 30, so that the driving mechanism 110 can move along a straight line along which the first direction is located under the guidance of the connecting plate 30, and the driving mechanism 110 drives the needle body 130 to move along a straight line along which the first direction is located, so that the needle body 130 is inserted into or separated from the reagent bottle 20, and by providing the guide rail 16, the driving mechanism 110 can limit the needle body 130 to move along only the straight line along which the first direction is located.

Further, the driving mechanism 110 includes a shifting block 111 and an elastic limiting portion 112 mounted on the shifting block 111, the mounting frame 10 is sequentially provided with an upper limiting groove 41 and a lower limiting groove 42 along a first direction, so as to push the shifting block 111 to move along a straight line along the first direction, and the elastic limiting portion 112 can be clamped with a groove wall of the upper limiting groove 41 or a groove wall of the lower limiting groove 42, so that the needle body 130 is separated from or inserted into the reagent bottle 20.

Pushing the shifting block 111 to drive the elastic limiting part 112 to move along the opposite direction of the first direction, when the elastic limiting part 112 is clamped with the groove wall of the upper limiting groove 41, the needle body 130 is separated from the reagent bottle 20, and at the moment, the reagent supply device is in the first state, so that a user can take and put the reagent bottle 20; when the elastic limiting part 112 is clamped with the groove wall of the lower limiting groove 42, the needle body 130 is inserted into the reagent bottle 20, the reagent supply device is in the second state, the needle body 130 can absorb reagent in the reagent bottle 20, the driving mechanism 110 can block the outlet of the accommodating cavity 11, and a user cannot take out the reagent bottle 20.

Still further, the elastic limiting portion 112 is a plunger, and the plunger includes a housing, a spring and a marble 1121, the spring is elastically connected to the inner wall of the housing and the marble 1121, the housing is installed in the dial block 111, and pushes the dial block 111 to move along a straight line where the first direction is located, and the marble 1121 can be clamped with the groove wall of the upper limiting groove 41 or the groove wall of the lower limiting groove 42, so that the needle body 130 is separated from or inserted into the reagent bottle 20.

In an embodiment, referring to fig. 4 to 9, the driving mechanism 110 further includes a carrying plate 113, the dial 111 is mounted on the carrying plate 113, a bar slot 1131 is disposed on the carrying plate 113, a through hole 31 is disposed on the connecting plate 30, the reagent supplying apparatus further includes a connecting member 500, the connecting member 500 can penetrate through the bar slot 1131 and the through hole 31 to fix the carrying plate 113 on the connecting plate 30 in an abutting manner, and a user can adjust the relative distance between the dial 111 and the mounting frame 10 by adjusting the position of the connecting member 500 in the bar slot, so as to adjust the compression amount of the spring in the dial 111, so as to adjust the abutting force between the dial 111 and the mounting frame 10.

It can be appreciated that, by adjusting the position of the connecting piece 500 in the strip-shaped groove, the compression amount of the spring in the shifting block 111 can be increased, and then the abutting force between the shifting block 111 and the mounting frame 10 is increased, the friction force born by the shifting block 111 is equal to the friction coefficient multiplied by the abutting force of the shifting block 111 on the mounting frame 10, when the friction coefficient is fixed, the friction force of the shifting block 111 on the mounting frame 10 can be improved by increasing the abutting force between the shifting block 111 and the mounting frame 10, when the friction force born by the shifting block 111 is greater than the gravity of the driving mechanism 110, the driving mechanism 110 can stop at any position of the mounting frame 10 along the straight line in the first direction, and then the reagent bottle 20 can be taken and placed without the movement of the elastic limiting part 112 to the upper limiting groove 41, so that the driving mechanism 110 and the needle body 130 fall down to be pricked to the hands of a user in the process of taking and placing the reagent bottle 20 without the elastic limiting part 112 to the upper limiting groove 41, and the use safety and reliability of the reagent supply device are improved.

In another embodiment, the driving mechanism 110 further includes a carrying plate 113, the dial block 111 is mounted on the carrying plate 113, a plurality of adjustment holes are disposed on the carrying plate 113, each adjustment hole is distributed on the carrying plate 113 along the second direction at intervals, a through hole 31 is disposed on the connecting plate 30, the reagent supplying apparatus further includes a connecting member 500, the connecting member 500 can penetrate one of the adjustment holes, and the through hole 31 so as to fix the carrying plate 113 on the connecting plate 30 in an abutting manner, the user selectively uses the connecting member 500 to penetrate one of the adjustment holes, and the through hole 31, the compression amount of the spring in the dial block 111 can be adjusted, so as to adjust the abutting force between the dial block 111 and the mounting frame 10.

In an embodiment, referring to fig. 1, the mounting frame 10 includes a plurality of fixing frames 17, the accommodating cavities 11 are provided with a plurality of fixing frames, and are respectively disposed in each fixing frame 17, the reagent bottles 20 are provided with a plurality of reagent bottles and are correspondingly accommodated in each accommodating cavity 11 one by one, that is, the reagent supplying device includes a plurality of reagent sharing units, and the user can specifically select the number of the reagent sharing units according to the use condition, so that the reagent supplying device meets the requirement of the instrument on the number of reagent channels, and further meets the requirement of extracting a plurality of reagents.

The reagent feeding apparatus is a semi-closed structure, the mounting frame 10 is a frame body with an opening at the front, the opening is used for allowing the reagent sharing unit to enter the mounting frame 10, and the reagent sharing unit is convenient to install.

In an embodiment, referring to fig. 5 to 10, an upper anti-collision rubber plug 32 and a lower anti-collision rubber plug 33 are disposed on the connecting plate 30, the upper anti-collision rubber plug 32 can prevent the driving mechanism 110 from colliding with the top wall of the mounting frame 10 after the user pushes the shifting block 111 to exceed the upper limit groove 41, and the lower anti-collision rubber plug 33 can prevent the driving mechanism 110 from colliding with a part of the structure of the mounting frame 10 after the user pushes the shifting block 111 to exceed the lower limit groove 42, so as to ensure the use safety of the driving mechanism 110.

In an embodiment, a sensing member 400 is installed on a side of the mounting frame 10 away from the driving mechanism 110, the sensing member 400 is used for sensing whether the elastic limiting portion 112 is located in the lower limiting groove 42, specifically, when the connecting plate 30 moves to the sensing member 400, the elastic limiting portion 112 is clamped with the groove wall of the lower limiting groove 42, the tip of the needle body 130 is abutted with the bottom of the reagent bottle 20, and when it is detected that the elastic limiting portion 112 is not clamped with the groove wall of the lower limiting groove 42, the sensing member 400 sends an alarm prompt through the control device.

In an embodiment, a sealing film is disposed at the mouth of the reagent bottle 20, and the driving mechanism 110 is pushed to move along the first direction so that the needle tip of the needle body 130 pierces the sealing film first, and then the needle tip can enter the reagent bottle 20, and the sealing film can ensure that the reagent is in a relatively airtight space before being extracted, and the reagent is volatilized.

Referring to fig. 1 to 11, a sample analyzer according to an embodiment includes a detection module and a reagent supplying apparatus according to any of the above embodiments, wherein the reagent supplying apparatus is used for extracting a reagent in a reagent bottle 20, and the detection module is in communication with the reagent supplying apparatus.

It can be appreciated that, in the process of inserting the reagent bottle 20 into the accommodating cavity 11 along the second direction, the elastic member 120 pushes the reagent bottle 20 along the third direction, so that the reagent bottle 20 is attached to the positioning module, the bottle mouth of the reagent bottle 20 and the needle body 130 of the reagent needle module 100 are opposite to each other, the needle body 130 can be inserted into the reagent bottle 20 as desired to suck the reagent, and the working reliability of the sample analyzer is improved.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. A reagent supplying apparatus, comprising: the reagent bottle comprises a mounting frame, a reagent needle module, a positioning module and a guide piece, wherein the mounting frame is provided with a containing cavity, the containing cavity is used for containing a reagent bottle, the reagent needle module is arranged on the mounting frame in a sliding mode along a first direction and is used for absorbing reagents in the reagent bottle, the positioning module and the guide piece are arranged in the containing cavity relatively, the reagent bottle is inserted in the containing cavity along a second direction, the guide piece can elastically push the reagent bottle along a third direction, so that the reagent bottle is attached to the positioning module, the bottle mouth of the reagent bottle is opposite to the needle body of the reagent needle module, and the first direction, the second direction and the third direction are mutually inclined.

2. The reagent supplying apparatus according to claim 1, wherein the guide member comprises a first elastic section connected to the mounting frame, a second elastic section disposed at an angle to the first elastic section, and an abutting portion formed between the first elastic section and the second elastic section, wherein the abutting portion is pushed by the reagent bottle to elastically deform the first elastic section during the process of inserting the reagent bottle into the accommodating cavity, and the first elastic section is capable of elastically resetting to push the abutting portion to abut against the reagent bottle in a free state so as to align the reagent bottle to the positioning module along the third direction.

3. The reagent supplying apparatus according to claim 2, wherein the mounting frame includes a first side wall, a second side wall, a third side wall and a bottom wall, the first side wall, the second side wall, the third side wall and the bottom wall enclose the accommodating chamber together, the guide member and the positioning module are mounted on the first side wall and the third side wall, respectively, and the bottom wall is inclined with respect to the working surface, so that the reagent bottle can move toward the position close to the second side wall under the action of thrust and gravity, so that one side of the reagent bottle is abutted against the second side wall.

4. The reagent supplying apparatus according to claim 1, wherein the positioning module is a read-write module, the read-write module includes a mounting board and a read-write board disposed on the mounting board, the read-write board is mounted on the mounting board through the mounting board, the guide member elastically pushes the reagent bottle along the third direction, so that the reagent bottle is abutted to the mounting board, and the read-write board is used for reading information of a chip on the reagent bottle.

5. The reagent supplying apparatus according to claim 1, wherein the tip of the needle body is a blunted structure.

6. The reagent supplying apparatus according to claim 1, wherein the reagent needle module includes a driving mechanism, an elastic member and a needle body, the needle body is slidably provided on the driving mechanism, the elastic member is sleeved on the needle body and elastically connects the driving mechanism and the needle body, and when a tip of the needle body abuts against a bottom of the reagent bottle, the elastic member is elastically deformed, and the needle body slides relative to the driving mechanism.

7. The reagent supplying apparatus according to claim 6, further comprising a connecting plate slidably provided in the mounting frame in the first direction, wherein the driving mechanism is connected to the connecting plate so that the driving mechanism can move in a straight line in the first direction under the guidance of the connecting plate.

8. The reagent supplying apparatus according to claim 7, wherein the driving mechanism includes a dial block and an elastic limit portion mounted on the dial block, the mounting frame is provided with an upper limit groove and a lower limit groove in sequence along the first direction, the dial block is pushed to move along a line where the first direction is located, and the elastic limit portion can be clamped with a groove wall of the upper limit groove or a groove wall of the lower limit groove, so that the needle body is separated from or inserted into the reagent bottle.

9. The reagent supplying apparatus according to claim 1, wherein the mounting frame includes a plurality of fixing frames, the accommodating chambers are provided in plurality and are respectively provided in the fixing frames, and the reagent bottles are provided in plurality and are accommodated in the accommodating chambers in a one-to-one correspondence.

10. A sample analyzer comprising a detection module and the reagent supply device of any one of claims 1-9 for extracting reagent from the reagent bottle, the detection module being in communication with the reagent supply device.