CN211635580U

CN211635580U - Centrifugal precipitator

Info

Publication number: CN211635580U
Application number: CN202020199485.2U
Authority: CN
Inventors: 陈海挺; 许文勇; 李自顺; 王菜籽; 洪加滨; 洪跃东
Original assignee: THIRD HOSPITAL OF XIAMEN
Current assignee: THIRD HOSPITAL OF XIAMEN
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-10-09
Anticipated expiration: 2030-02-24

Abstract

The utility model provides a centrifugal precipitator for detect and contain liquid determinand. Centrifugal precipitation ware includes objective glass, filter layer, location axle, objective glass is used for bearing contain the liquid determinand, the filter layer sets up on the objective glass, be used for filtering contain the liquid in the liquid determinand, the filter layer includes the locating hole, the location axle can pull out to insert set up in the locating hole, in order to incite somebody to action the filter layer location is in on the objective glass. The utility model provides a pair of centrifugal precipitator filters the liquid that contains among the liquid determinand through adopting the filter layer to can realize the follow-up detection operation to the determinand of staying on the slide glass. In addition, the centrifugal precipitator can realize accurate positioning of the filter layer by adopting the matching use of the positioning holes and the positioning shafts.

Description

Centrifugal precipitator

Technical Field

The utility model relates to the field of medical equipment, concretely relates to centrifugal precipitator.

Background

The development of cerebrospinal cytology is of great importance to our understanding of the morphological functions and disease diagnosis of various cells in cerebrospinal fluid. In 1954, the cerebrospinal fluid cell precipitation chamber method invented abroad is also called a slide cell precipitation method. The cells collected by the method are complete and clear, but partial cells are taken away while the filter paper with the holes absorbs water, the cell loss rate is up to 30-70%, and the time is long. At present, the centrifugal sedimentation method of the Setarian glass slide is the greatest innovation of cerebrospinal fluid cytology, and the collected cells are more and more complete. There are still deficiencies: different personnel, specialty and non-professional, the quality that same personnel were even at the same time or even different time film-making all is different, can't guarantee the cell and collect the comprehensive of quantity and the even unanimity that the cell distributes that collects, and the cerebrospinal fluid can appear often and spill, and the spatula material is ya keli simultaneously, easy wearing and tearing. The main reasons for this are that the mounting of the precipitating apparatus cannot ensure the consistency of the front and back, and the reasons include the tightness of the blade of the spatula and the filter paper, the uneven alignment of the blade of the spatula and the edge of the circular hole of the filter paper, and the easy leakage of cerebrospinal fluid, which are related to the skill and experience of the operator. Therefore, how to remove the liquid as a carrier more effectively in order to detect cells in cerebrospinal fluid or other body fluids becomes a problem to be solved in the related detection field.

Disclosure of Invention

In view of the above, the present invention is directed to a centrifugal precipitator, which solves the problem of being unable to effectively remove the liquid as a carrier in a liquid-containing analyte.

In order to realize the purpose of the utility model, the utility model provides a centrifugal precipitator for detect and contain the liquid determinand. Centrifugal precipitation ware includes objective glass, filter layer, location axle, objective glass is used for bearing contain the liquid determinand, the filter layer sets up on the objective glass, be used for filtering contain the liquid in the liquid determinand, the filter layer includes the locating hole, the location axle can pull out to insert set up in the locating hole, in order to incite somebody to action the filter layer location is in on the objective glass.

Optionally, the diameter of the positioning shaft is greater than or equal to the diameter of the positioning hole.

Optionally, the centrifugal precipitator includes a pressing knife precipitation tube, the pressing knife precipitation tube presses the filter layer on the slide glass, and the positioning shaft passes through the pressing knife precipitation tube in a pluggable manner.

Optionally, the pressing knife sedimentation tube comprises a guide hole, and the guide hole is arranged corresponding to the positioning hole.

Optionally, the centrifugal precipitator includes a base and a pressing member, the slide glass is disposed on the base, the pressing member and the base are connected to each other, and the pressure precipitation tube is pressed on the filter layer.

Optionally, the base includes two first connection ends located at two sides of the slide, and the pressing component includes two second connection ends located at two sides of the slide, and the two first connection ends are correspondingly connected with the two second connection ends.

Optionally, the first connection end includes a nut and a screw, the second connection end includes a connection hole, the connection hole is sleeved on the screw, and the nut and the screw are in threaded connection with each other to connect the first connection end and the second connection end together.

Optionally, the pressing component comprises an elastic pressing piece, and the elastic pressing piece presses the pressing knife sedimentation tube on the filter layer.

Optionally, the pressing component includes a support rod, the two second connection ends are respectively disposed at two ends of the support rod, a sleeve hole is disposed in the middle of the support rod, the pressing knife settling tube is sleeved with the sleeve hole, the pressing knife settling tube includes an outer flange, the elastic pressing component is a spring, the pressing knife settling tube is sleeved with the spring, and the spring is clamped between the lower side of the support rod and the outer flange.

Optionally, two suspension brackets are arranged on the supporting rod, each suspension bracket is of an L-shaped structure, one ends of the two suspension brackets are connected to the upper side of the supporting rod respectively, and the other ends of the two suspension brackets extend out in opposite directions respectively.

The utility model provides a pair of centrifugal precipitator filters the liquid that contains among the liquid determinand through adopting the filter layer to can realize the follow-up detection operation to the determinand of staying on the slide glass. In addition, the centrifugal precipitator can realize accurate positioning of the filter layer by adopting the matching use of the positioning holes and the positioning shafts. Furthermore, the diameter of the positioning shaft of the centrifugal precipitator is larger than or equal to that of the positioning hole, so that the positioning shaft needs to be squeezed into the filter layer when being inserted into the positioning hole, and the filter layer can be positioned on the slide glass more stably after the positioning shaft is pulled out from the positioning hole.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic structural diagram of a centrifugal precipitator according to an embodiment of the present invention.

FIG. 2 is a schematic view of another perspective of the centrifugal settler of FIG. 1 without a filter layer.

Fig. 3 is a side view of the centrifugal settler of fig. 2.

FIG. 4 is a schematic structural diagram of a filter layer of the centrifugal precipitator.

FIG. 5 is a schematic diagram of the separation structure of the slide, the filter layer and the positioning shaft of the centrifugal settler.

FIG. 6 is a schematic view of the assembly structure of the slide glass, the filter layer and the positioning shaft of the centrifugal settler.

FIG. 7 is a schematic view of the assembly structure of the slide glass, the filter layer, the positioning shaft and the pressing knife sedimentation tube of the centrifugal settler.

Fig. 8 is a schematic structural diagram of the pressing part of the centrifugal precipitator.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a centrifugal precipitator 900 for carrying a liquid-containing analyte and filtering the liquid in the liquid-containing analyte, so as to realize the subsequent detection operation of the analyte left on the slide. In this embodiment, the fluid-containing analyte is cerebrospinal fluid. In other embodiments, the liquid-containing analyte may be other body fluids such as blood. The centrifugal precipitator 900 includes a slide 100, a filter layer 200, a positioning shaft 300, a knife pressing precipitation tube 400, a base 500 and a pressing member 600. The slide 100 is a rectangular sheet structure for carrying a liquid-containing object to be tested. The filter layer 200 is also a rectangular parallelepiped sheet structure, and is correspondingly disposed on the slide 100 for filtering out liquid in the liquid-containing analyte. In this embodiment, the filter layer 200 is filter paper. In other embodiments, the filter layer 200 may be other filter materials such as a filter membrane.

As shown in FIG. 4, the filter layer 200 includes a positioning hole 210, the positioning hole 210 is disposed at a middle position of the filter layer 200 to expose a portion of the slide glass 100, and the liquid-containing analyte is placed on the exposed slide glass 100 through the pressing blade sedimentation tube 400 for subsequent detection and observation. In addition, the edge of the positioning hole 210 contacts the liquid-containing object to be tested, so that the liquid serving as a carrier in the liquid-containing object to be tested can be adsorbed and diffused all around, and the target detection part of the liquid-containing object to be tested is left. 5-6, the positioning shaft 300 is cylindrical and is removably disposed in the positioning hole 210 to position the filter layer 200 on the slide 100. The diameter L of the positioning shaft 300 is greater than or equal to the diameter L of the positioning hole 210, and in this embodiment, L is 10 mm. So that the positioning shaft 300 needs to be pushed into the filter 200 when inserted into the positioning hole 210, the filter 200 can be more stably positioned on the slide glass 100 after the positioning shaft 300 is withdrawn from the positioning hole 210.

Referring to fig. 7, the pressing blade sedimentation tube 400 includes a guide hole 410 and an outer flange 420, the guide hole 410 is disposed corresponding to the positioning hole 210, the pressing blade sedimentation tube 400 presses the filter layer 200 onto the slide 100, and the positioning shaft 300 is inserted into and removed from the pressing blade sedimentation tube 400. In this embodiment, the positioning shaft 300 and the pressing blade settling tube 400 are subjected to interference saturation treatment, so that the pressing blade settling tube 400 and the positioning shaft 300 can smoothly move relative to each other. The pressing knife sedimentation tube 400 is made of medical stainless steel, and the cutting edge of the pressing knife sedimentation tube 400 is a narrow blunt surface, has the characteristics of the cutting edge and a narrow plane, and can be attached to the filter layer 200. When the positioning device is used, the positioning shaft 300 is sequentially pulled out from the positioning hole 210 and the pressing knife sedimentation tube 400, so that the guide hole 410 is accurately aligned with the positioning hole 210.

Referring to fig. 1 and 8, the slide 100 is disposed on the base 500, the pressing member 600 is connected to the base 500, and the pressing-knife sedimentation tube 400 is pressed on the filter layer 200, so as to prevent the movement of the pressing-knife sedimentation tube 400 when the positioning shaft 300 is drawn out of the filter layer 200 and the pressing-knife sedimentation tube 400, which may result in the guide hole 410 not being aligned with the positioning hole 210. Base 500 includes two first connecting ends 510 positioned on either side of slide 100; stitching component 600 includes two second attachment ends 610 on either side of slide 100; the two first connecting terminals 510 are correspondingly connected with the two second connecting terminals 610. The first connecting end 510 includes a nut 512 and a screw 514, the second connecting end 610 includes a connecting hole 612, the connecting hole 612 is sleeved on the screw 514, and the nut 512 and the screw 514 are connected with each other by screw threads to connect the first connecting end 510 and the second connecting end 610 together. The pressing degree of the pressing knife settling tube 400 and the filter layer 200 can be adjusted by adjusting the relative positions of the nut 512 and the screw 514.

The pressing member 600 further includes a supporting rod 620 and an elastic pressing member 630. The two second connecting ends 610 are respectively arranged at two ends of the supporting rod 620, a sleeve hole 622 is arranged in the middle of the supporting rod 620, the inner diameter of the sleeve hole 622 is larger than the outer diameter of the pressing knife sedimentation tube 400, and the pressing knife sedimentation tube 400 is sleeved with the sleeve hole 622. The elastic press 630 presses the pressing knife settling tube 400 on the filter layer 200. In this embodiment, the resilient press 630 is a spring. In other embodiments, the elastic pressing member 630 may be made of other elastic materials such as rubber ring. The diameter of the spring is between the inner diameter and the outer diameter of the sleeve hole 622, the spring is sleeved on the pressing knife sedimentation tube 400 and clamped between the lower side of the support rod 620 and the outer flange 420 of the pressing knife sedimentation tube 400, and the spring is used for adjusting the pressure of the pressing knife sedimentation tube 400 relative to the slide 100. The support rod 620 is provided with two hanging brackets 624, the hanging brackets 624 are L-shaped, one ends of the two hanging brackets 624 are respectively connected to the upper side of the support rod 620, and the other ends of the two hanging brackets 624 extend out in opposite directions. When the centrifugal precipitator is used, the two suspension supports 624 are hung on the detection equipment, so that the centrifugal precipitator 900 freely swings around the suspension supports 624 as an axis, and the adsorption of the liquid components in the liquid-containing object to be detected by the filter layer 200 is accelerated.

The utility model provides a pair of centrifugal precipitator filters the liquid that contains among the liquid determinand through adopting the filter layer to can realize the follow-up detection operation to the determinand of staying on the slide glass. In addition, the centrifugal precipitator can realize accurate positioning of the filter layer by adopting the matching use of the positioning holes and the positioning shafts. Furthermore, the diameter of the positioning shaft of the centrifugal precipitator is larger than or equal to that of the positioning hole, so that the positioning shaft needs to be squeezed into the filter layer when being inserted into the positioning hole, and the filter layer can be positioned on the object glass more stably after the positioning shaft is pulled out from the positioning hole.

While the description and drawings of the present invention have been given for the purpose of illustration and description, it will be understood by those skilled in the art that these embodiments are not intended to limit the scope of the present invention, but are capable of modification in various forms and details without departing from the spirit and scope of the present invention. Accordingly, the scope of the present disclosure is not limited to the above-described embodiments, but should be determined by the claims and the equivalents thereof.

Claims

1. A centrifugal precipitator is used for detecting a liquid-containing substance to be detected, and is characterized in that: centrifugal precipitation ware includes objective glass, filter layer, location axle, objective glass is used for bearing contain the liquid determinand, the filter layer sets up on the objective glass, be used for filtering contain the liquid in the liquid determinand, the filter layer includes the locating hole, the location axle can pull out to insert set up in the locating hole, in order to incite somebody to action the filter layer location is in on the objective glass.

2. A centrifugal settler according to claim 1, wherein: the diameter of the positioning shaft is larger than or equal to that of the positioning hole.

3. A centrifugal settler according to claim 2, wherein: the centrifugal precipitator comprises a pressing knife precipitation tube, the pressing knife precipitation tube presses the filter layer on the object glass, and the positioning shaft can penetrate through the pressing knife precipitation tube in a pulling and inserting mode.

4. A centrifugal settler according to claim 3, wherein: the pressing knife sedimentation pipe comprises a guide hole, and the guide hole and the positioning hole are correspondingly arranged.

5. A centrifugal settler according to claim 4, wherein: the centrifugal precipitator comprises a base and a pressing part, the glass slide is arranged on the base, the pressing part is connected with the base, and the pressing knife sedimentation tube is pressed on the filter layer.

6. A centrifugal settler according to claim 5, wherein: the base comprises two first connecting ends positioned on two sides of the glass slide, the pressing component comprises two second connecting ends positioned on two sides of the glass slide, and the two first connecting ends are correspondingly connected with the two second connecting ends.

7. A centrifugal settler according to claim 6, wherein: the first connecting end comprises a nut and a screw rod, the second connecting end comprises a connecting hole, the connecting hole is sleeved on the screw rod, and the nut and the screw rod are in threaded connection with each other so as to connect the first connecting end and the second connecting end together.

8. A centrifugal settler according to claim 7, wherein: the pressing part comprises an elastic pressing part, and the pressing knife sedimentation tube is pressed on the filter layer by the elastic pressing part.

9. A centrifugal settler according to claim 8, wherein: the pressing component comprises a supporting rod, the two second connecting ends are respectively arranged at two ends of the supporting rod, a sleeve hole is formed in the middle of the supporting rod, the pressing knife sedimentation tube is sleeved with the sleeve hole, the pressing knife sedimentation tube comprises an outer side flange, the elastic pressing component is a spring, the pressing knife sedimentation tube is sleeved with the spring, and the spring is clamped between the lower side of the supporting rod and the outer side flange.

10. A centrifugal settler according to claim 9, wherein: the support rod is provided with two suspension supports which are of an L-shaped structure, one ends of the two suspension supports are connected to the upper side of the support rod respectively, and the other ends of the two suspension supports extend out in opposite directions respectively.