A surgical specimen indwelling device
By designing a surgical specimen indwelling device, a support component is used to support the baffle to retain pathological specimens under negative pressure suction, and the channel is closed by pressing. This solves the problem of specimen aspiration and retrieval in laparoscopic surgery, and achieves efficient specimen preservation and retrieval.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 段丙志
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-26
AI Technical Summary
Existing techniques for biopsy and subsequent cutting procedures during laparoscopic surgery can waste valuable surgical time. Furthermore, in the case of small tumors, the specimen may be aspirated into the suction tube, causing blockage or making it difficult to locate the specimen postoperatively, thus wasting time.
A surgical specimen indwelling device was designed, including a base, a filter, a soft cover, an outlet tube, and an inlet tube. A baffle is supported by a support component, a negative pressure is used to draw in the pathological specimen, and the channel is closed by pressing to preserve the specimen.
Negative pressure suction surgery can effectively preserve pathological specimens, reduce the time spent searching for specimens due to aspiration, save surgical time and costs, and facilitate the removal of specimens after the surgery.
Smart Images

Figure CN224269337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a surgical specimen indwelling device. Background Technology
[0002] Currently, medical biopsies are performed using forceps to extract tissue. With advancements in medical equipment and minimally invasive techniques, many surgeries now involve cutting and aspiration. As people's understanding of diseases improves, surgeries for small, early-stage tumors are becoming more common. However, laparoscopic surgery requires a biopsy before the cutting procedure, which wastes valuable surgical time. In some small tumor surgeries, negative pressure aspiration may draw the specimen into the aspiration tube, which can clog the tube if the sample is too large, requiring replacement and wasting surgical time. If the specimen is drawn into the aspiration bottle, a significant amount of time must be spent searching for it post-operatively. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a surgical specimen indwelling device.
[0004] This utility model is achieved through the following technical solution.
[0005] This utility model provides a surgical specimen indwelling device, including a base; a square cavity is machined inside the base, and a filter screen is vertically fixed inside the base, dividing the cavity into two sections. The base is sealed by a soft cover, and an outlet pipe and an inlet pipe are respectively provided at both ends of the soft cover. A sealing plate is provided at the top inside the soft cover, and the middle part of the sealing plate is vertically connected to the top of a baffle. The lower end of the baffle is in contact with the upper end face of the filter screen. A support assembly is also provided inside the base to support the baffle.
[0006] The support assembly includes a guide plate, which is fixed on both sides of the base and between the filter screen and the outlet pipe. The lower end of the baffle contacts the upper ends of the guide plate and the filter screen on opposite sides. The upper end of the base and the lower end of the baffle are respectively provided with a fixed triangular protrusion and a lower triangular protrusion. The fixed triangular protrusion and the lower triangular protrusion are triangular in shape with the same specifications and their inclined surfaces in contact. The lower triangular protrusion is located above the fixed triangular protrusion.
[0007] The upper end of the baffle is provided with an upper triangular protrusion, the specifications and direction of which are the same as those of the lower triangular protrusion.
[0008] The distance between the top of the upper triangular protrusion and the sealing plate is the same as the distance between the bottom of the fixed triangular protrusion and the top of the guide plate.
[0009] The sealing plate has the same shape and size as the bottom of the base.
[0010] The beneficial effects of this utility model are as follows: it can leave pathological specimens while performing negative pressure aspiration or cutting aspiration surgery, and the specimens can be kept in the sample cavity by a simple pressing operation, reducing the time spent searching for surgical specimens due to accidental aspiration and saving time and costs; the device of this application is connected between the negative pressure aspiration head and the aspiration bottle before the operation begins to leave pathological specimens, without affecting the effect of negative pressure aspiration during the operation; after the operation, the indwelling device is removed to leave pathological specimens. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the sealing structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the sample collection morphology of this utility model;
[0014] Figure 4 For the present utility model Figure 3 A magnified structural diagram of point A;
[0015] Figure 5 This is a schematic diagram of the fully conductive structure of this utility model;
[0016] Figure 6 For the present utility model Figure 5 A magnified structural diagram of section B;
[0017] In the diagram: 1-Inlet pipe, 2-Baffle, 3-Soft cover, 4-Outlet pipe, 5-Base, 6-Filter screen, 7-Sealing plate, 8-Sample chamber, 9-Fixing triangular protrusion, 10-Upper triangular protrusion, 11-Guide plate, 12-Lower triangular protrusion. Detailed Implementation
[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.
[0019] A surgical specimen indwelling device includes a base 5; a square cavity is machined inside the base 5, and a filter screen is vertically fixed inside the base 5, dividing the cavity into two sections. The base 5 is sealed by a soft cover 3, with an outlet pipe 1 and an inlet pipe 4 at each end of the soft cover 3. A sealing plate 7 is provided at the top inside the soft cover 3, and the middle part of the sealing plate 7 is vertically connected to the top of a baffle 2. The lower end of the baffle 2 contacts the upper end face of the filter screen 6. A support assembly is also provided inside the base 5 to support the baffle 2. During the production process, the outlet pipe 1, baffle 2, inlet pipe 3, base 5, filter screen 6, sealing plate 7, sample cavity 8, fixing triangular protrusion 9, upper triangular protrusion 10, guide plate 11, and lower triangular protrusion 12 are all made of hard plastic, while the soft cover 3 is made of soft plastic.
[0020] The support assembly includes a guide plate 11, which is fixed to both side walls of the base 5 and between the filter screen 6 and the outlet pipe 4. The lower end of the baffle 2 contacts the upper opposite sides of the guide plate 11 and the filter screen 6. A fixed triangular protrusion 9 and a lower triangular protrusion 12 are respectively provided at the contact points between the upper end of the base 5 and the lower end of the baffle 2. The fixed triangular protrusion 9 and the lower triangular protrusion 12 are triangular in shape with identical specifications and inclined surfaces, with the lower triangular protrusion 12 positioned above the fixed triangular protrusion 9. The supporting force between the fixed triangular protrusion 9 and the lower triangular protrusion 12 prevents the baffle 2 from falling when no force is applied, thus forming a channel between the inlet pipe 1, the filter screen, and the outlet pipe 4. When an operator applies pressure to the baffle 2 from outside the soft cover, the inclined surfaces of the fixed triangular protrusion 9 and the lower triangular protrusion 12 allow the guide plate to deform under pressure, causing the baffle to move downwards and thus sealing the channel between the filter screen and the outlet pipe 4.
[0021] The upper end of the baffle 2 is provided with an upper triangular protrusion 10, the specifications and direction of which are the same as those of the lower triangular protrusion 12.
[0022] The distance between the top of the upper triangular protrusion 10 and the sealing plate 7 is the same as the distance between the bottom of the fixed triangular protrusion 9 and the top of the guide plate 11.
[0023] The sealing plate 7 and the base 5 have the same bottom shape and size. The baffle and sealing plate are combined in a T-shape. When the baffle moves the sealing plate down, it completely seals the base. In this way, the specimen is fixed and sealed in the base and will not be lost due to negative pressure suction. After the operation, the soft cover can be cut open with scissors or other sharp instruments, and the baffle can be removed to take out the specimen.
[0024] like Figure 3 As shown, the device of this application is connected between the negative pressure suction head and the suction bottle before the operation begins. After the operation begins, the suction machine is started. The tissue sample can pass through the inlet tube and be retained at the front end of the filter screen 6. When the filter screen becomes clogged due to excessive sample retention, the soft cover 3 is pressed down, causing the sealing plate 7 and the baffle 2 to be pressed down. The sealing plate 2 is pressed down and blocks the filter screen, closing the channel between the outlet tube and the filter screen. The sealing plate then seals the sample cavity 8 at the upper end of the sealing plate, reforming the suction channel. Figure 5 As shown, a channel leading to the outlet pipe 4 is formed above the inlet pipe 1 and the sealing plate 7, and the suction machine continues to work to suck the surgically cut tissue into the suction bottle.
Claims
1. A surgical specimen indwelling device, comprising a base (5), characterized in that: A square cavity is machined inside the base (5). A filter screen is vertically fixed inside the base (5) to divide the cavity into two sections. The base (5) is sealed by a soft cover (3). The two ends of the soft cover (3) are respectively provided with an outlet pipe (4) and an inlet pipe (1). A sealing plate (7) is provided at the top inside the soft cover (3). The middle part of the sealing plate (7) is vertically connected to the top of the baffle (2). The lower end of the baffle (2) is in contact with the upper end of the end face of the filter screen (6). A support assembly is also provided inside the base (5) to support the baffle (2).
2. The surgical specimen indwelling device as described in claim 1, characterized in that: The support assembly includes a guide plate (11), which is fixed on both sides of the base (5) and between the filter screen (6) and the outlet pipe (4). The lower end of the baffle (2) is in contact with the upper ends of the guide plate (11) and the filter screen (6) respectively. The upper end of the base (5) and the lower end of the baffle (2) are respectively provided with a fixed triangular protrusion (9) and a lower triangular protrusion (12). The fixed triangular protrusion (9) and the lower triangular protrusion (12) are triangular in shape with the same specifications and inclined surfaces in contact. The lower triangular protrusion (12) is located above the fixed triangular protrusion (9).
3. The surgical specimen indwelling device as described in claim 2, characterized in that: The upper end of the baffle (2) is provided with an upper triangular protrusion (10), the specifications and direction of which are the same as those of the lower triangular protrusion (12).
4. The surgical specimen indwelling device as described in claim 3, characterized in that: The distance between the top of the upper triangular protrusion (10) and the sealing plate (7) is the same as the distance between the bottom of the fixed triangular protrusion (9) and the top of the guide plate (11).
5. The surgical specimen indwelling device as described in claim 4, characterized in that: The sealing plate (7) has the same shape and size as the bottom of the base (5).