Intraoperative waste liquid drainage device
By designing an intraoperative waste fluid drainage device that includes connecting pipes, drainage holes, and negative pressure interfaces, the problem of waste fluid accumulation during unilateral dual-channel endoscopic surgery was solved, achieving rapid and stable waste fluid discharge, simplifying the operation process, reducing the risk of infection, and extending the operation time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-04-03
AI Technical Summary
In unilateral dual-channel endoscopic surgery, the accumulation of waste fluid after saline irrigation affects the clarity of the field of vision and increases the risk of infection. Existing surgical drape folding methods are cumbersome and prolong the operation time.
Design an intraoperative waste fluid drainage device including a connecting pipeline, equipped with a drainage hole, a negative pressure interface and a fixed support plate. The waste fluid is drawn in by the negative pressure device and discharged quickly and stably through the drainage hole and negative pressure interface. The support plate enhances the stability of the device.
It simplifies surgical procedures, quickly and effectively removes waste fluid, reduces the risk of operating table contamination, and improves surgical efficiency and device stability.
Smart Images

Figure CN224070947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary device technology, and in particular to an intraoperative waste fluid drainage device. Background Technology
[0002] Unilateral dual-channel endoscopic surgery is a minimally invasive procedure that can effectively treat various spinal diseases with precision and minimal invasiveness. Compared with traditional open surgery, it has the advantages of less trauma and less bleeding, reducing surgical risks for patients and facilitating early postoperative recovery. Unilateral dual-channel endoscopic surgery requires creating two channels in the patient's back: an endoscopic channel and a surgical channel. To obtain a clear surgical field, saline solution is continuously infused through the endoscopic channel, and then drained through the surgical channel.
[0003] If saline solution flows out of the operating channel without intervention, excessive fluid accumulation in the surgical area can impair the clarity of the surgical field, increase the risk of infection, and even cause overflow and contamination of the operating table. Currently, in unilateral dual-channel endoscopic surgery, surgical drapes are often folded and stacked around the surgical area or on two or three sides of the lower body position to form a rectangular dam to prevent the overflow of irrigation waste. However, the dam-building process is entirely manual, cumbersome, and prolongs the operation time. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an intraoperative waste fluid drainage device.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] An intraoperative waste fluid drainage device includes a connecting pipe with its ends connected. The center of the connecting pipe forms a surgical area, and the internal chamber of the connecting pipe forms a drainage channel. The connecting pipe has at least one drainage hole connected to the drainage channel on the side near the surgical area. The connecting pipe has a negative pressure interface connected to the drainage channel on the side away from the surgical area for connecting to an external negative pressure device. A fixing support plate extends outward from the side of the connecting pipe away from the surgical area. Adhesive strips for bonding to the patient's skin are provided at the bottom of the connecting pipe and the bottom of the fixing support plate.
[0007] Furthermore, a liquid-separating plate is provided at the bottom of the connecting pipe on the side near the surgical area, and the height of the liquid-separating plate is equal to the thickness of the adhesive strip.
[0008] Furthermore, a baffle plate is also provided at the top of the connecting pipe.
[0009] Furthermore, the height of the baffle is 5mm to 20mm.
[0010] Furthermore, the connecting pipe is shaped like a square.
[0011] Furthermore, the number of drainage holes is 4 to 20, and each drainage hole is evenly distributed on the side of the connecting tube near the surgical area.
[0012] Furthermore, the diameter of the drainage hole is 3mm to 10mm, and the lower edge of each drainage hole is close to the bottom end face of the connecting pipe.
[0013] Furthermore, the connecting pipe is made of a transparent material.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model proposes an intraoperative waste fluid drainage device, comprising a connecting pipe with its ends connected. The center of the connecting pipe constitutes the surgical area, and the internal chamber of the connecting pipe constitutes a drainage channel. At least one drainage hole for the drainage channel is provided on the side of the connecting pipe closest to the surgical area, and a negative pressure interface for connecting to an external negative pressure device is provided on the side of the connecting pipe furthest from the surgical area. A fixing support plate extends outward from the side of the connecting pipe furthest from the surgical area. Adhesive strips for bonding to the patient's skin are provided at the bottom of the connecting pipe and the bottom of the fixing support plate. This device is easy to operate, eliminating the cumbersome step of folding surgical towels, and can achieve rapid, effective, and stable drainage of waste fluid. Furthermore, the fixing support plate can stabilize the connecting pipe if the adhesive strip is in prolonged contact with waste fluid, reducing the possibility of side leakage and improving the stability and reliability of the device.
[0016] 2. The present invention proposes an intraoperative waste fluid drainage device, wherein a liquid-separating plate is provided at the bottom of the connecting pipe on the side near the surgical area. The height of the liquid-separating plate is equal to the thickness of the adhesive strip. The liquid-separating plate is provided to prevent the adhesive strip of the connecting pipe from being affected by direct contact with the waste fluid in the surgical area, thereby further improving the stability and reliability of the device.
[0017] 3. The surgical waste fluid drainage device proposed in this utility model is equipped with a baffle plate at the top of the connecting pipe. When there is a lot of waste fluid in the surgical area and it cannot be drained in time, the baffle plate will block the waste fluid to prevent it from overflowing and contaminating the operating table.
[0018] 4. The intraoperative waste fluid drainage device proposed in this utility model has a connecting pipe made of transparent material, which makes it easy to observe the suction of waste fluid in the connecting pipe. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is one of the schematic diagrams of an intraoperative waste fluid drainage device according to the present invention;
[0021] Figure 2 This is a second schematic diagram of an intraoperative waste fluid drainage device according to the present invention;
[0022] Figure 3 This is a top view of an intraoperative waste fluid drainage device according to the present invention;
[0023] Figure 4 This is a bottom view of an intraoperative waste fluid drainage device according to the present invention;
[0024] Figure 5 for Figure 4 Enlarged view of point A;
[0025] In the diagram, 10 is the connecting pipe; 101 is the drainage channel; 102 is the drainage hole; 103 is the negative pressure interface; 104 is the fixed support plate; 105 is the adhesive strip; 106 is the liquid separator; 107 is the baffle; and 20 is the surgical area. Detailed Implementation
[0026] The following is combined Figures 1-5 This utility model will be described in detail.
[0027] An intraoperative waste fluid drainage device includes a connecting pipe 10 with its ends connected. The center of the connecting pipe 10 forms a surgical area 20. The internal chamber of the connecting pipe 10 forms a drainage channel 101. At least one drainage hole 102 connecting the drainage channel 101 is provided on the side of the connecting pipe 10 closest to the surgical area 20. A negative pressure interface 103 connecting the drainage channel 101 is provided on the side of the connecting pipe 10 furthest from the surgical area 20 for connecting an external negative pressure device. A fixed support plate 104 extends outward from the side of the connecting pipe 10 furthest from the surgical area 20. Adhesive strips 105 for bonding the patient's skin are provided at the bottom of the connecting pipe 10 and the bottom of the fixed support plate 104. The device is easy to operate, eliminating the tedious steps of folding surgical towels. It can quickly, effectively and stably discharge waste liquid. Furthermore, the fixed support plate 104 can stabilize the connecting pipe 10 when the rubber strip 105 of the connecting pipe 10 is in contact with waste liquid for a long time, causing the connecting pipe 10 to become loose, thereby reducing the possibility of side leakage and improving the stability and reliability of the device.
[0028] Specifically, the connecting pipe 10, viewed from above, can be shaped like a square (i.e., a cuboid or cube), a triangle, a circle, or other polygons, as long as it can enclose the surgical area 20. Waste fluid from the surgical area 20 is aspirated using a negative pressure device. Under the action of the negative pressure device, the waste fluid first enters the drainage channel 101 through the drainage hole 102, and then exits from the drainage channel 101 through the negative pressure interface 103. Essentially, the drainage hole 102 is the inlet of the drainage channel 101, and the negative pressure interface 103 is the outlet of the drainage channel 101. The specific structure and suction principle of the negative pressure device are existing technology and common knowledge, and will not be elaborated here. Strip 105 is provided with release paper, which can be separated and bonded to the adhesive surface of strip 105. After the release paper is torn off, the adhesive surface of strip 105 adheres to the skin surface of the human body to be operated on. Strip 105 is a medical strip 105. Prolonged contact with waste liquid may cause the adhesiveness of strip 105 to deteriorate. At this time, the connecting pipe 10 and the human skin will not stick firmly, and the waste liquid may flow out through the gap between the two. Therefore, a fixed support plate 104 is provided. The bottom of fixed support plate 104 is also provided with strip 105. The strip 105 of fixed support plate 104 does not come into contact with the waste liquid in surgical area 20, thus enhancing the stability of the entire device.
[0029] In this embodiment, a liquid-separating plate 106 is provided at the bottom of the side of the connecting pipe 10 near the surgical area 20, and the height of the liquid-separating plate 106 is equal to the thickness of the adhesive strip 105. Specifically, the liquid-separating plate 106 is located between the adhesive strip 105 of the connecting pipe 10 and the surgical area 20. The liquid-separating plate 106 prevents the adhesive strip 105 of the connecting pipe 10 from being affected by direct contact with the waste liquid of the surgical area 20, thereby further improving the stability and reliability of the device.
[0030] In this embodiment, a baffle plate 107 is also provided at the top of the connecting pipe 10. When there is a lot of waste liquid in the surgical area 20 and it cannot be discharged in time, the baffle plate 107 first blocks the waste liquid to prevent it from overflowing and contaminating the operating table. Furthermore, the height of the baffle plate 107 is 5mm to 20mm.
[0031] In this embodiment, the connecting pipe 10 is shaped like a square. Specifically, the surgical area 20 is located in the middle of the square-shaped connecting pipe 10, and the aforementioned adhesive strip 105 and diaphragm 106 are also shaped like a square.
[0032] In this embodiment, the number of drainage holes 102 is 4 to 20, and each drainage hole 102 is evenly distributed on the side of the connecting pipe 10 near the surgical area 20.
[0033] In this embodiment, the diameter of the drainage hole 102 is 3mm to 10mm, and the lower edge of each drainage hole 102 is close to the bottom end face of the connecting pipe 10. This arrangement makes it easier to draw waste fluid from the surgical area 20 into the drainage channel 101.
[0034] In this embodiment, the connecting pipe 10 is made of a transparent material to facilitate observation of the suction of waste liquid within the connecting pipe 10. Specifically, the connecting pipe 10 is made of any one of the following materials: PVC, rubber, aluminum foil, latex, or plastic.
[0035] The intraoperative waste fluid drainage device proposed in this utility model is used as follows:
[0036] Peel off the release paper of the adhesive strip 105 and stick the adhesive side of the adhesive strip 105 to the skin surface of the surgical site, so that the two channel openings of the unilateral dual-channel endoscopic surgery are roughly in the center of the device, i.e., the surgical area 20. During the operation, the negative pressure interface 103 is connected to the negative pressure source throughout the process, so that waste liquid can be removed in time and leakage can be prevented.
[0037] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A device for draining intraoperative waste fluid, characterized in that, The device includes a connecting pipe with its ends connected. The center of the connecting pipe forms a surgical area. The internal chamber of the connecting pipe forms a drainage channel. The side of the connecting pipe closest to the surgical area has at least one drainage hole connecting to the drainage channel. The side of the connecting pipe furthest from the surgical area has a negative pressure interface connecting to the drainage channel for connecting to an external negative pressure device. A fixing support plate extends outward from the side of the connecting pipe furthest from the surgical area. Adhesive strips for bonding the patient's skin are provided at the bottom of the connecting pipe and the bottom of the fixing support plate.
2. The intraoperative waste fluid drainage device as described in claim 1, characterized in that, A liquid-separating plate is provided at the bottom of the connecting pipe on the side closest to the surgical area, and the height of the liquid-separating plate is equal to the thickness of the adhesive strip.
3. The intraoperative waste fluid drainage device as described in claim 1, characterized in that, A baffle plate is also provided at the top of the connecting pipe.
4. The intraoperative waste fluid drainage device as described in claim 3, characterized in that, The height of the baffle is 5mm to 20mm.
5. The intraoperative waste fluid drainage device as described in claim 1, characterized in that, The connecting pipeline is shaped like a square.
6. The intraoperative waste fluid drainage device as described in claim 5, characterized in that, The number of drainage holes is 4 to 20, and each drainage hole is evenly distributed on the side of the connecting tube near the surgical area.
7. The intraoperative waste fluid drainage device as described in claim 1, characterized in that, The diameter of the drainage hole is 3mm to 10mm, and the lower edge of each drainage hole is close to the bottom end face of the connecting pipe.
8. The intraoperative waste fluid drainage device as described in claim 1, characterized in that, The connecting pipe is made of a transparent material.