A bladder irrigation filtering device for cystoscopic surgery

CN224864785UActive Publication Date: 2026-10-20ZHU XIANYI MEMORIAL HOSPITAL OF TIANJIN MEDICAL UNIV (TIANJIN MEDICAL UNIV METABOLIC DISEASE HOSPITAL TIANJIN METABOLIC DISEASE PREVENTION CENT)
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Patent Information

Application Number
CN202520328149.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-10-20
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

但是霍夫曼冲洗器在使用时仍存在一些不足,首先其没有防止瓶内组织反流的功能,当再次挤压瓶身时,已被吸出的组织有可能再次随着水流返回膀胱内,为更好的吸出膀胱内组织,一般需要多次更换冲洗液,增加操作的繁杂度;其次被吸出的组织悬浮于瓶内的冲洗液中,缺少组织的过滤收集装置,为获得手术组织标本,手术医生需要将瓶内冲洗液连同组织倒出至其他容器进行过滤分拣,电切下的组织往往体积较小,且数量较多,故传统冲洗器组织标本分拣搜集的工作量较大

Benefits of technology

本实用新型通过进水口与出水口分开设置,结合过滤杯对切除组织的过滤,避免了吸出组织的二次反流进入膀胱,减少冲洗操作频次,极大改善冲洗效果,同时可减少冲洗液使用量。

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Abstract

A kind of cystoscope under operation bladder flushing filter device is by flushing filter bin, flushing ball is composed of.The flushing filter bin is by pipeline assembly, filter cup, outer cup is constituted.The flushing ball is by flushing ball body, flushing ball interface is constituted.The flushing ball interface is fixedly connected with the lower mouth of flushing filter bin outer cup by thread.The pipeline assembly is by water inlet, water inlet one-way valve, water outlet, water outlet one-way valve, flushing joint, outer cup cover, water inlet, drain, injection and drainage tee joint knob is constituted, each component is integrated design, outer cup cover is connected with the upper mouth of outer cup by thread mode.Filter cup is by filter cup body, filter hole, filter cup upper mouth is constituted, filter cup upper mouth is fixedly connected with water outlet by thread mode.Outer cup is by outer cup cup body, outer cup upper mouth, outer cup lower mouth is constituted.The utility model discloses by water inlet and water outlet separation setting, filter cup is filtered to resected tissue, can realize prostate or bladder electric cutting etc better bladder flushing effect in operation, can realize the filtration collection to pathological tissue of operation simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of bladder irrigation for surgical patients. A bladder irrigation and filtration device for cystoscopic surgery is provided, particularly suitable for bladder irrigation and filtration during cystoscopic transurethral resection of the prostate or bladder tumor. Background Technology

[0002] For patients undergoing cystoscopic transurethral resection of the prostate (TURP) or bladder tumor, the lesions or hyperplastic tissue removed during the procedure are often temporarily stored in the bladder. Previously, a Hoffman irrigator was typically used to aspirate the removed lesion tissue from the bladder. During use, squeezing the Hoffman irrigator bottle releases irrigation fluid into the bladder. The bottle then rebounds, causing the bladder to overflow and the surgically removed tissue to be drawn back into the bottle. This process is repeated multiple times to aspirate any remaining removed tissue from the bladder. However, the Hoffman irrigator still has some shortcomings in use. First, it does not have the function of preventing backflow of tissue in the bottle. When the bottle is squeezed again, the tissue that has been aspirated may return to the bladder with the water flow. In order to better aspirate the tissue in the bladder, the irrigation solution generally needs to be changed multiple times, which increases the complexity of the operation. Second, the aspirated tissue is suspended in the irrigation solution in the bottle. There is no tissue filtration and collection device. In order to obtain surgical tissue specimens, the surgeon needs to pour the irrigation solution in the bottle along with the tissue into other containers for filtration and sorting. The tissues removed by electrocautery are often small in volume and numerous. Therefore, the workload of sorting and collecting tissue specimens with traditional irrigators is relatively large.

[0003] Patent applications CN202420682104.4, CN202410347856.X, CN202410292365.X, CN202420205953.0, CN202420015666.3, CN202323652892.7, etc., are all for patients outside of surgery and cannot meet the bladder irrigation needs during surgeries such as transurethral resection of the prostate. Summary of the Invention

[0004] This bladder irrigator was designed to achieve better bladder irrigation results during transurethral resection of the prostate or cystectomy, directly filter and collect surgically removed tissue, and improve the ease of operation for surgeons.

[0005] 1. The technical solution adopted by this utility model to solve its technical problem consists of a flushing filter chamber and a flushing ball. The flushing filter chamber is composed of a pipeline assembly, a filter cup, and an outer cup. The flushing ball is composed of a flushing ball body and a flushing ball interface. The flushing ball interface is fixedly connected to the lower opening of the outer cup of the flushing filter chamber by threads, thus constituting this utility model.

[0006] 2. The flushing filter chamber consists of a piping assembly, a filter cup, and an outer cup. The piping assembly comprises an inlet, an inlet one-way valve, an outlet, an outlet one-way valve, a flushing connector, a water inlet, a water outlet, a water inlet / outlet tee knob, and an outer cup cover. All components are integrated into one unit, with the outer cup cover connected to the upper opening of the outer cup via threads. The filter cup consists of a filter cup body, filter holes, and an upper opening, with the upper opening of the filter cup fixedly connected to the water outlet via threads. The outer cup consists of an outer cup body, an upper opening, and a lower opening.

[0007] 3. The flushing ball consists of a flushing ball body and a flushing ball inlet. The flushing ball is made of transparent and highly elastic silicone material. The flushing ball inlet is fixedly connected to the lower opening of the outer cup by threads. The flushing ball is used to provide flushing fluid pressure.

[0008] In use, first connect all sterilized components. Connect and secure the outlet of the tubing assembly to the upper opening of the filter cup. Place the connected tubing assembly and filter cup into the outer cup and tighten the outer cup cap. Then connect and secure the rinsing ball interface to the lower opening of the outer cup. Adjust the inlet / outlet tee to open the channel connecting the inlet to the outer cup. Connect the existing clinically prepared rinsing solution tubing to the inlet. Add an appropriate amount of rinsing saline to the rinsing filter chamber and rinsing ball. Disconnect the rinsing solution tubing. Finally, connect the rinsing connector to the rinsing port on the surgical instrument at the patient end. Pressing the flushing bulb opens the one-way valve at the inlet of the tubing assembly and closes the one-way valve at the outlet. The flushing fluid enters the patient's bladder through the inlet and the one-way valve. Releasing the flushing bulb causes it to rebound, opening the one-way valve at the outlet and closing the one-way valve at the inlet. The flushing fluid and surgically removed tissue in the bladder flow out through the outlet and the one-way valve at the outlet. The surgically removed tissue is filtered and collected by the filter cup, while the flushing fluid returns to the flushing bulb and the outer cup. Pressing the flushing bulb again allows the filtered flushing fluid to re-enter the bladder. Releasing the flushing bulb again aspirates the removed tissue from the bladder, which is then filtered and collected by the filter cup. Repeating this process can completely aspirate the removed tissue from the bladder. During flushing, if the patient experiences significant bleeding, the flushing fluid in the flushing device needs to be replaced. Adjust the inlet-outlet tee to open the drain channel and drain the waste fluid. Then adjust the inlet-outlet tee again to open the inlet, connect the flushing fluid tubing, and add new flushing fluid. After flushing, open the outer cup cap and remove the filter cup to obtain all the removed tissue.

[0009] The positive effects of this utility model are as follows: This invention separates the inlet and outlet of the water and uses a filter cup to filter the removed tissue, thus preventing secondary backflow of the suctioned tissue into the bladder, reducing the frequency of flushing operations, greatly improving the flushing effect, and reducing the amount of flushing solution used.

[0010] 2. This utility model uses a filter cup to collect excised tissue, which can directly obtain all excised tissue, avoiding secondary filtration or sorting of pathological tissue by the surgeon, and increasing the convenience of the work.

[0011] 3. This utility model uses a three-way injection and drainage device to enable rapid replacement of the irrigation fluid in the irrigation device, avoiding the spillage of irrigation fluid when other personnel assist in adding it, thus maintaining the sterile barrier of the surgery. Attached Figure Description

[0012] The implementation of this utility model will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram (front view) of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram (front view) of the flushing filter chamber structure of this utility model.

[0015] Figure 3 This is a schematic diagram (front view) of the pipeline assembly structure of this utility model.

[0016] Figure 4 This is a schematic diagram (front view) of the filter cup structure of this utility model.

[0017] Figure 5 This is a schematic diagram (front view) of the outer cup structure of this utility model.

[0018] Figure 6 This is a schematic diagram (front view) of the flushing ball structure of this utility model. Detailed Implementation

[0019] Figure 1 shows a bladder irrigation and filtering device for cystoscopic surgery, consisting of an irrigation and filtering chamber and an irrigation bulb. Figure 2 The flushing filter chamber shown consists of a piping assembly, a filter cup, and an outer cup. For example... Figure 3 The pipeline assembly shown consists of a flushing connector (1), an inlet (3) (13), an inlet one-way valve (4) (14), an outlet (5), an outlet one-way valve (6), an outer cup cap (12), a water inlet (9), an inlet / outlet tee knob (10), and a drain outlet (11). All components are integrated into a single unit. The outer cup cap (8) is connected to the upper opening (2) of the outer cup via a threaded connection. Figure 4 The filter cup shown consists of a filter cup body (16), a filter cup upper opening (17), and filter holes (7). The filter cup upper opening (17) and the water outlet (5) are fixedly connected by threads. Figure 5 The outer cup shown is composed of an outer cup body (15), an upper rim (2), and a lower rim (8). Figure 6The rinsing ball shown consists of a rinsing ball interface (18) and a rinsing ball body (19). The rinsing ball is made of transparent and elastic silicone material. The rinsing ball interface (18) is fixedly connected to the lower opening (8) of the outer cup by threads, thus constituting this utility model.

[0020] In clinical use, first connect the sterilized components, connect and fix the outlet (5) of the pipeline assembly to the upper opening (17) of the filter cup, put the connected pipeline assembly and filter cup into the outer cup, and tighten the outer cup cap (12), then connect and fix the rinsing ball interface (18) to the lower opening (8) of the outer cup. Adjust the inlet and outlet tee (10), open the channel connecting the inlet (9) and the outer cup, connect the existing clinical rinsing fluid pipeline to the inlet (9), add an appropriate amount of rinsing saline to the rinsing filter chamber and the rinsing ball, and disconnect the rinsing fluid pipeline. Then connect the rinsing connector (1) to the existing rinsing port on the surgical instrument at the patient end. Pressing the flushing bulb (19) opens the inlet one-way valves (4) and (14) on the tubing assembly, and closes the outlet one-way valve (6). The flushing fluid enters the patient's bladder through the inlet (3) and (13) and the inlet one-way valves (4) and (14). Releasing the flushing bulb (19) causes it to rebound, opening the outlet one-way valve (6) and closing the inlet one-way valves (4) and (14). The flushing fluid and surgically removed tissue in the bladder flow out through the outlet (5) and the outlet one-way valve (6). The surgically removed tissue is filtered and collected by the filter cup, and the flushing fluid returns to the flushing bulb and outer cup through the filter hole (7). Pressing the flushing bulb again allows the filtered flushing fluid to re-enter the bladder. Releasing the flushing bulb allows the remaining surgically removed tissue in the bladder to be aspirated again and filtered and collected by the filter cup. Repeating the above operation can completely aspirate the surgically removed tissue from the bladder. During the rinsing process, if the patient experiences significant bleeding, the rinsing fluid in the rinsing device needs to be replaced. Adjust the inlet / outlet tee (10) to open the drain port (11) and drain the waste fluid. Then adjust the inlet / outlet tee (10) again to open the inlet port (9), connect the rinsing fluid line, and add new rinsing fluid. After rinsing, open the outer cup cap, remove the filter cup, and obtain all the resected tissue. The used bladder rinsing device should be cleaned, disinfected, and sterilized before reuse.

Claims

1. A bladder irrigation and filtering device for cystoscopic surgery, characterized in that: It consists of a flushing filter chamber and a flushing ball. The flushing ball interface is fixedly connected to the lower opening of the outer cup of the flushing filter chamber by threads. The flushing filter chamber is used to filter and collect surgically removed tissue, and the flushing ball is used to provide flushing fluid pressure.

2. The bladder irrigation and filtering device for cystoscopic surgery according to claim 1, characterized in that: The flushing filter chamber consists of a piping assembly, a filter cup, and an outer cup. The piping assembly comprises an inlet, an inlet one-way valve, an outlet, an outlet one-way valve, a flushing connector, a water inlet, a water outlet, a water inlet / outlet tee, and an outer cup cap. All components are integrated into one piece. The outer cup cap is connected to the upper opening of the outer cup via a thread. The inlet one-way valve allows the flushing fluid to flow unidirectionally towards the patient's bladder, and the outlet one-way valve ensures that the flushing fluid in the patient's bladder flows unidirectionally towards the filter cup. The filter cup consists of a filter cup body, filter holes, and an upper opening. The upper opening of the filter cup is fixedly connected to the outlet via a thread. The outer cup consists of an outer cup body, an upper opening, and a lower opening.

3. A bladder irrigation and filtering device for cystoscopic surgery according to claim 1, characterized in that: The rinsing ball consists of a rinsing ball body and a rinsing ball interface. The rinsing ball is made of transparent and highly elastic silicone material.

Citation Information

Patent Citations

  • Closed hole adjusting type bladder irrigator

    CN118001495A

  • Non-contact multi-sensor fusion bladder irrigation real-time monitoring and early warning system

    CN118203715A

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    CN221470731U

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    CN221692289U

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    CN221866868U