A biomedical extraction device

Abstract

The present invention relates to the technical field of biomedical extraction devices, and discloses a biomedical extraction device, which includes: an extraction tank for storing biological drugs, wherein the lower end of the extraction tank is provided with a discharge pipe connected to the inside of the extraction tank, and a valve is provided in the discharge pipe, and the valve is electric or manual; a mixing filter, the lower end of which is open and the lower end of the mixing filter is inserted into the discharge pipe and forms a seal with the discharge pipe under the action of a sealing ring, and the mixing filter in the extraction tank includes a hollow body, the hollow body has at least one non-horizontal filter wall, and a plurality of through filter holes are provided on the non-horizontal filter wall at intervals. The present invention is completely inside and will not have the problem of contacting with external objects and then contacting with internal drug liquid, which is safer and more reliable. In addition, the device avoids clogging by filtering with a non-horizontal filter surface in rotation.

Description

Technical Field

[0001] The invention relates to the technical field of biomedical extraction devices, in particular to a biomedical extraction device. Background Art

[0002] The existing patent publication number is (CN220142716U), which discloses a biomedical extraction device, including an extraction tank, a liquid outlet pipe is provided on the extraction tank, a mounting frame is fixedly connected to the side wall of the liquid outlet pipe, a mounting plate is slidably connected to the mounting frame, two mounting holes symmetrically arranged are provided on the mounting plate, filter plates are clamped on the two mounting holes, the height of the two filter plates is lower than the height of the mounting holes, and a limiting mechanism for limiting the mounting plate is provided on the mounting frame. The present invention realizes the alternating use of the two filter plates by arranging two filter plates on the mounting plate and limiting the position of the limiting mechanism, and there is no need to clean the filter plate by stopping the release of the medicinal liquid after the filter plate is blocked, thereby realizing the continuous release of the medicinal liquid and further improving the release efficiency of the medicinal liquid.

[0003] However, the device will have leakage points during the lateral movement, causing the drug solution to leak out, and the manually replaced filter screen has external bacteria, which will contaminate the drug solution when used for filtration. In addition, the accumulation and stratification of solid drug residues cannot be solved, resulting in large differences in the concentration of the drug solution discharged at different times.

[0004] This case is proposed in order to improve and optimize the above-mentioned problems or shortcomings. Summary of the invention

[0005] A biomedical extraction device, comprising: The extraction tank stores biological products, wherein a discharge pipe communicating with the interior of the extraction tank is provided at the lower end of the extraction tank, and a valve is provided in the discharge pipe, and the valve is electric or manual; A mixing filter, the lower end of which is open and the lower end of which is inserted into the discharge pipe and forms a seal with the discharge pipe under the action of a sealing ring, and the mixing filter in the extraction tank includes a hollow body, the hollow body has at least one non-horizontal filter wall, and a plurality of through filter holes are arranged on the non-horizontal filter wall at intervals, and the liquid medicine enters the mixing filter through the filter holes and is discharged through the discharge pipe; The first driving motor drives the mixing filter to rotate through a connecting rod or a coupling, so that the solid drug residue with a larger density is thrown away and away from the filter hole under the action of the inertia of rotation to avoid blockage during the discharge of the extracted drug solution.

[0006] Preferably, the mixed filter includes an embedded tube, which is fixed at the lower end of the hollow body and connected to the hollow body. A sealing ring is provided on the outer wall of the embedded tube or the inner wall of the discharge pipe. The inner and outer wall surfaces of the sealing ring are in contact with the outer wall of the embedded tube and the inner wall of the discharge pipe at the same time and can enable the embedded tube to rotate relative to the discharge pipe.

[0007] Preferably, the lower end of the shaft of the first driving motor is connected with a driving shaft via a coupling, the lower end of the driving shaft is fixed to the upper end of the mixing filter, and the driving shaft and the mixing filter are coaxial.

[0008] Preferably, the non-horizontal filter wall is a concave arc surface or a concave plane, and a number of penetrating filter holes are arranged at intervals on the non-horizontal filter wall. In this way, the drug residues precipitated by gravity under static conditions are not likely to block all the filter holes, which is more reasonable than the existing horizontal filter equipment.

[0009] Preferably, stirring blades are provided at annular intervals on the non-horizontal filtering wall surface, and the stirring blades are arranged obliquely, so that after the mixing filter is rotated, a stronger inertial thrust can be exerted on the solid medicinal residue to keep it away from the filtering hole.

[0010] Preferably, the stirring blade is raised relative to the side of the hollow body. Such a design facilitates mixing by the rotating stirring blade before opening the valve, thereby avoiding stratification of the drug solution and homogenizing the concentration of the drug solution.

[0011] The advantages and positive effects of the present invention are: On the one hand, the device is completely inside and will not come into contact with external objects and then with internal drug liquid, which is safer and more reliable. In addition, the device avoids clogging by filtering with a non-horizontal filter surface in rotation.

[0012] The non-horizontal filter surface is also provided with a raised stirring blade, which stirs the medicine during rotation to make it more homogeneous and uniform the concentration of the medicine solution. In addition, the stirring blade exerts a greater thrust on the medicine residue, making it more difficult to accumulate in the filter holes of the non-horizontal filter wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of the mixing filter 16.

[0015] Markings in the attached drawings: 10, hollow body; 11, stirring blade; 12, embedded tube; 13, non-horizontal filtering wall; 14, first driving motor; 15, driving shaft; 16, mixing filter; 17, discharge pipe; 18, valve; 19, extraction tank. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance. The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings: like Figure 1-3 As shown, a biomedical extraction device according to the present invention comprises: The extraction tank 19 stores the biological drug, wherein a discharge pipe 17 communicating with the interior of the extraction tank 19 is provided at the lower end of the extraction tank 19, and a valve 18 is provided in the discharge pipe 17, and the valve 18 is electrically or manually operated; A mixing filter 16, the lower end of which is open and the lower end of which is partially inserted into the discharge pipe 17 and forms a seal with the discharge pipe 17 under the action of a sealing ring, and the mixing filter 16 is located in the extraction tank 19 and includes a hollow body 10, wherein the hollow body 10 has at least one non-horizontal filter wall 13, and a plurality of through filter holes are arranged on the non-horizontal filter wall 13 at intervals, and the liquid medicine enters the mixing filter 16 through the filter holes and is discharged through the discharge pipe 17; The first driving motor 14 drives the mixing filter 16 to rotate through a connecting rod or a coupling, so that the solid drug residue with a larger density is thrown away and away from the filtering hole under the action of the inertia of rotation to avoid blockage during the discharge of the extracted drug solution.

[0018] Preferably, the mixing filter 16 includes an embedded tube 12, which is fixed at the lower end of the hollow body 10 and connected to the hollow body 10. A sealing ring is provided on the outer wall of the embedded tube 12 or the inner wall of the discharge pipe 17. The inner and outer wall surfaces of the sealing ring are in contact with the outer wall of the embedded tube 12 and the inner wall of the discharge pipe 17 at the same time and can enable the embedded tube 12 to rotate relative to the discharge pipe 17.

[0019] Preferably, the lower end of the shaft of the first driving motor 14 is connected with a driving shaft 15 via a coupling, the lower end of the driving shaft 15 is fixed to the upper end of the mixing filter 16, and the driving shaft 15 and the mixing filter 16 are coaxial.

[0020] Preferably, the non-horizontal filter wall 13 is a concave arc surface or a concave plane, and a plurality of through filter holes are arranged at intervals on the non-horizontal filter wall 13, so that the drug residues precipitated by gravity under static conditions are not likely to clog all the filter holes, which is more reasonable than the existing horizontal filter equipment.

[0021] Preferably, stirring blades 11 are provided at annular intervals on the non-horizontal filtering wall surface 13, and the stirring blades 11 are arranged obliquely, so that after the mixing filter 16 rotates, it can exert a stronger inertial thrust on the solid medicinal residue to keep it away from the filtering hole.

[0022] Preferably, the stirring blade 11 is raised relative to the side of the hollow body 10. Such a design facilitates mixing by the rotating stirring blade 11 before opening the valve 18, thereby avoiding stratification of the drug solution and homogenizing the concentration of the drug solution.

[0023] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A biomedical extraction device, characterized in that: include; The extraction tank (19) stores biological drugs, wherein a discharge pipe (17) communicating with the interior of the extraction tank (19) is provided at the lower end of the extraction tank (19), and a valve (18) is provided in the discharge pipe (17), and the valve (18) is electrically or manually operated; A mixing filter (16) with an opening at the lower end and the lower end of the mixing filter (16) is inserted into the discharge pipe (17) and forms a seal with the discharge pipe (17) under the action of a sealing ring, and the mixing filter (16) is located in the extraction tank (19) and includes a hollow body (10), the hollow body (10) having at least one non-horizontal filter wall (13), and a plurality of filter holes are arranged at intervals on the non-horizontal filter wall (13), and the drug solution enters the mixing filter (16) through the filter holes and is discharged through the discharge pipe (17); The first driving motor (14) drives the mixed filter (16) to rotate via a connecting rod or a coupling.

2. A biomedical extraction device according to claim 1, characterized in that: The mixing filter (16) comprises an embedded tube (12), the embedded tube (12) being fixed at the lower end of the hollow body (10) and being in communication with the hollow body (10), a sealing ring being provided on the outer wall of the embedded tube (12) or the inner wall of the discharge tube (17), the inner and outer wall surfaces of the sealing ring being in contact with the outer wall of the embedded tube (12) and the inner wall of the discharge tube (17) at the same time and enabling the embedded tube (12) to rotate relative to the discharge tube (17).

3. A biomedical extraction device according to claim 2, characterized in that: The lower end of the rotating shaft of the first driving motor (14) is connected to a driving rotating shaft (15) via a coupling, the lower end of the driving rotating shaft (15) is fixed to the upper end of the mixing filter (16), and the driving rotating shaft (15) and the mixing filter (16) are coaxial.

4. A biomedical extraction device according to claim 3, characterized in that: The non-horizontal filtering wall surface (13) is an inwardly concave arc surface or an inwardly concave plane, and a plurality of penetrating filtering holes are arranged at intervals on the non-horizontal filtering wall surface (13).

5. A biomedical extraction device according to claim 4, characterized in that: The non-horizontal filtering wall surface (13) is also provided with stirring blades (11) at annular intervals, and the stirring blades (11) are arranged obliquely.

6. A biomedical extraction device according to claim 5, characterized in that: The stirring blade (11) is protruding relative to the side surface of the hollow body (10).

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