Filter bottle with detachable filter
By designing a filter bottle with a detachable filter screen, the problem of contamination and loss caused by multiple sample transfers during obstetric and gynecological surgeries was solved, enabling direct filtration and delivery of samples for testing, and adapting to filtration needs in different situations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOJIA MEDICAL EQUIP CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-14
AI Technical Summary
Existing filter bottles require multiple sample transfers during obstetric and gynecological surgeries, which can easily lead to contamination and sample loss.
A filter bottle with a detachable filter screen has been designed, including a detachable filter assembly and a hemispherical filter screen. It is connected to an exhaust pipe via an L-shaped mounting bracket, and the filter screen can be completely or partially disassembled using locking bolts, which facilitates direct filtration and testing of samples.
It enables direct filtration and delivery of samples, avoiding contamination and loss during sample transfer, and the filter is reusable to meet the filtration needs of different occasions.
Smart Images

Figure CN224485156U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a filter bottle. Background Technology
[0002] During obstetric and gynecological surgeries, negative pressure suction devices are equipped with sample collection bottles. Samples such as endometrial tissue are collected through these bottles. After sampling, the samples in the filter bottles are filtered out by pouring the contents into a filter spoon.
[0003] This sampling method requires multiple sample transfers, which can easily lead to contamination and sample loss.
[0004] There is an urgent need for a filter bottle structure that can directly filter samples. Utility Model Content
[0005] In view of the problems existing in the prior art, this utility model provides a filter bottle with a detachable filter screen to solve at least one of the above technical problems.
[0006] To achieve the above objectives, this utility model provides a filter bottle with a detachable filter screen, comprising a bottle body and a bottle cap, wherein an inlet pipe and an outlet pipe are fixed on the bottle cap, and the bottom of the inlet pipe and the outlet pipe extend downward into the bottle body. The feature is that it further comprises a filter assembly.
[0007] The filter assembly includes an L-shaped mounting bracket with a through hole passing through the bottom of the exhaust pipe, and the L-shaped mounting bracket is detachably connected to the exhaust pipe.
[0008] The filtration assembly also includes a hemispherical filter screen with an opening at the top, the hemispherical filter screen being directly opposite the liquid inlet pipe;
[0009] A connector is fixed to the hemispherical filter screen, and a through mounting hole is provided on the connector. A mounting post is welded to the L-shaped mounting bracket and inserted longitudinally into the mounting hole.
[0010] The connector is threaded with a locking bolt that abuts against the mounting post.
[0011] This invention facilitates the overall detachment of the filter assembly or the partial disassembly of the hemispherical filter screen, meeting diverse disassembly requirements. The entire filter assembly can be sent for testing without sample transfer. The bottle can be reused after replacing the filter screen, and filter screens with corresponding pore sizes can be used in different applications.
[0012] More preferably, the area where the liquid inlet tube extends downward beyond the bottle cap is the first extension portion;
[0013] The bottom of the first extension is provided with a slanted cut that slopes downwards from the side away from the exhaust pipe to the side adjacent to the exhaust pipe.
[0014] More preferably, the lower end of the inlet pipe is lower than the lower end of the outlet pipe.
[0015] More preferably, the top area of the hemispherical filter screen is larger than the outer contour area of the liquid inlet pipe.
[0016] More preferably, the bottle cap has a buckle rotatably connected to the opposite side for engaging the bottle body.
[0017] More preferably, the cross-section of the mounting column is a polygonal structure.
[0018] It facilitates the tightening of the bolts on the side wall of the mounting column. Simultaneously, it achieves the desired installation positioning.
[0019] More preferably, the cross-section of the mounting post is a regular hexagon;
[0020] One of the two opposite sidewalls of the mounting column is welded and fixedly connected to the L-shaped mounting bracket, and the other sidewall abuts against the locking bolt.
[0021] More preferably, the connector is welded and fixed to the inner top of the hemispherical filter screen;
[0022] The connector has a threaded hole for threaded connection of the locking bolt, and the threaded hole is higher than the top of the hemispherical filter screen;
[0023] The threaded hole is connected to the mounting hole.
[0024] More preferably, the threaded hole is located on the side of the connector adjacent to the exhaust pipe;
[0025] The connector has a through hole on the side away from the exhaust pipe that aligns with the mounting hole, and the through hole is directly opposite the threaded hole.
[0026] More preferably, the mounting post is fixed to the side of the L-shaped mounting bracket away from the inlet pipe.
[0027] More preferably, an annular limiting boss is fixed on the lower side of the bottle cap, and the annular limiting boss is located on the periphery of the exhaust pipe;
[0028] The bottom of the inlet pipe is provided with an external thread for threaded connection of a nut;
[0029] The L-shaped mounting bracket is held between the annular limiting boss and the nut.
[0030] Compared with the prior art, the beneficial effects of this utility model are:
[0031] This device enables the complete removal of the filter assembly as well as the partial removal of the individual hemispherical filter screen.
[0032] The L-shaped mounting bracket facilitates handheld operation.
[0033] This device allows for the entire filter assembly to be sent for testing without the need for sample transfer. Attached Figure Description
[0034] Fig. 1 This is a schematic diagram of the structure of the filter assembly in a specific embodiment 1 of the present utility model;
[0035] Fig. 2 This is a schematic diagram of the filter assembly of a specific embodiment 1 of the present utility model from another perspective;
[0036] Fig. 3 This is a schematic diagram of a specific embodiment 1 of the present utility model;
[0037] Fig. 4 This is a cross-sectional view of the present invention.
[0038] In the diagram: 1 is the bottle cap, 2 is the bottle body, 3 is the filter assembly, 11 is the liquid inlet pipe, 12 is the exhaust pipe, 13 is the buckle, 31 is the L-shaped mounting bracket, 32 is the mounting post, 33 is the connector, 34 is the locking bolt, and 35 is the hemispherical filter screen. Detailed Implementation
[0039] The present invention will be further described below with reference to the accompanying drawings.
[0040] See Figs. 1 to 4Specific Embodiment 1: A filter bottle with a detachable filter screen includes a bottle body 2 and a bottle cap 1. An inlet pipe 11 and an exhaust pipe 12 are fixed to the bottle cap 1. The bottoms of both the inlet pipe 11 and the exhaust pipe 12 extend downwards into the bottle body 2. It also includes a filter assembly 3. The filter assembly 3 includes an L-shaped mounting bracket 31 with a through hole passing through the bottom of the exhaust pipe 12. The L-shaped mounting bracket 31 is detachably connected to the exhaust pipe 12. The filter assembly 3 also includes a hemispherical filter screen with an open top, facing the inlet pipe 11. A connector 33 is fixed to the hemispherical filter screen 35, with a through mounting hole. A mounting post 32 is welded to the L-shaped mounting bracket 31, and the mounting post 32 is inserted longitudinally into the mounting hole. A locking bolt 34 is threaded onto the connector 33, abutting against the mounting post 32. This invention facilitates the overall detachment of the filter assembly 3 or the partial detachment of the hemispherical filter screen, meeting different disassembly requirements. The entire filter assembly can be sent for testing without sample transfer. The bottle can be reused after replacing the filter, and the filter with the appropriate pore size can be used for different applications.
[0041] The area where the liquid inlet pipe 11 extends downward out of the bottle cap 1 is the first extension; the bottom of the first extension is provided with a slanted cut that slopes from top to bottom from the side away from the exhaust pipe 12 to the side adjacent to the exhaust pipe 12.
[0042] The lower end of the inlet pipe 11 is lower than the lower end of the outlet pipe 12.
[0043] The top area of the hemispherical filter screen 35 is larger than the outer contour area of the liquid inlet pipe 11.
[0044] The bottle cap 1 has a buckle 13 on the opposite side for locking the bottle body 2.
[0045] The mounting post 32 has a polygonal cross-section, facilitating the installation of the side wall of the mounting post 32 at the bottom of the locking bolt 34. It also achieves the effect of installation positioning. The mounting post 32 has a regular hexagonal cross-section; one of the two opposite side walls of the mounting post 32 is welded and fixedly connected to the L-shaped mounting bracket 31, while the other side wall abuts against the locking bolt 34.
[0046] The connector 33 is welded and fixed to the top inner side of the hemispherical filter screen; the connector 33 has a threaded hole for a threaded locking bolt 34, which is higher than the top of the hemispherical filter screen. The threaded hole and the mounting hole are connected. The threaded hole is located on the side of the connector adjacent to the exhaust pipe; the side of the connector away from the exhaust pipe has a through hole for connecting the mounting hole, which is directly opposite the threaded hole.
[0047] A ring-shaped limiting boss is fixed on the lower side of the bottle cap 1, and the ring-shaped limiting boss is located on the periphery of the exhaust pipe 12; the bottom of the liquid inlet pipe 11 is provided with an external thread for threaded connection of the nut; the L-shaped mounting bracket 31 is clamped between the ring-shaped limiting boss and the nut.
[0048] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A filter bottle with a detachable filter screen, comprising a bottle body and a bottle cap, wherein an inlet pipe and an outlet pipe are fixed to the bottle cap, and the bottoms of both the inlet pipe and the outlet pipe extend downward into the bottle body, characterized in that, It also includes a filtering component; The filter assembly includes an L-shaped mounting bracket with a through hole passing through the bottom of the exhaust pipe, and the L-shaped mounting bracket is detachably connected to the exhaust pipe. The filtration assembly also includes a hemispherical filter screen with an opening at the top, the hemispherical filter screen being directly opposite the liquid inlet pipe; A connector is fixed to the hemispherical filter screen, and a through mounting hole is provided on the connector. A mounting post is welded to the L-shaped mounting bracket and inserted longitudinally into the mounting hole. The connector is threaded with a locking bolt that abuts against the mounting post.
2. A filter bottle with a detachable filter screen according to claim 1, characterized in that: The area where the inlet pipe extends downward beyond the bottle cap is the first extension; The bottom of the first extension is provided with a slanted cut that slopes downwards from the side away from the exhaust pipe to the side adjacent to the exhaust pipe.
3. A filter bottle with a detachable filter screen according to claim 1, characterized in that: The lower end of the inlet pipe is lower than the lower end of the outlet pipe.
4. A filter bottle with a detachable filter screen according to claim 1, characterized in that: The top area of the hemispherical filter screen is larger than the outer contour area of the inlet pipe.
5. A filter bottle with a detachable filter screen according to claim 1, characterized in that: The bottle cap is rotatably connected to opposite sides with buckles for engaging the bottle body.
6. A filter bottle with a detachable filter screen according to claim 1, characterized in that: The cross-section of the mounting column is a polygonal structure.
7. A filter bottle with a detachable filter screen according to claim 1, characterized in that: The cross-section of the mounting column is a regular hexagon; One of the two opposite sidewalls of the mounting column is welded and fixedly connected to the L-shaped mounting bracket, and the other sidewall abuts against the locking bolt.
8. A filter bottle with a detachable filter screen according to claim 1, characterized in that: The connector is welded and fixed to the inner top of the hemispherical filter screen; The connector has a threaded hole for threaded connection of the locking bolt, and the threaded hole is higher than the top of the hemispherical filter screen; The threaded hole is connected to the mounting hole.
9. A filter bottle with a detachable filter screen according to claim 8, characterized in that: The threaded hole is located on the side of the connector adjacent to the exhaust pipe; The connector has a through hole on the side away from the exhaust pipe that aligns with the mounting hole, and the through hole is directly opposite the threaded hole.
10. A filter bottle with a detachable filter screen according to claim 8, characterized in that: An annular limiting protrusion is fixed to the lower side of the bottle cap, and the annular limiting protrusion is located around the exhaust pipe. The bottom of the inlet pipe is provided with an external thread for threaded connection of a nut; The L-shaped mounting bracket is held between the annular limiting boss and the nut.