Fixing structure for hepatobiliary surgery puncture drainage tube
By combining the mounting plate and the fixing ring, the problem of unstable fixation of the drainage tube caused by the failure of the adhesive tape was solved, achieving a stable and reusable drainage tube fixation effect, reducing costs and expanding the application range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 邓本源
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the method of tightening the C-shaped plate with tape is prone to adhesive failure after long-term use, thus failing to effectively fix the drainage tube.
The structure is designed with mounting plate, mounting bracket and fixing ring. The combination of opening groove and fixing ring, combined with narrowing component and adjusting bolt, can achieve stable fixation of drainage tube and avoid the use of tape.
It achieves a stable fixation of the drainage tube without relying on tape, avoiding the problem of detachment caused by tape failure, reducing usage costs and expanding the scope of application.
Smart Images

Figure CN224235887U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of puncture and drainage tube technology, specifically, it relates to a fixation structure for a hepatobiliary surgical puncture and drainage tube. Background Technology
[0002] Hepatobiliary surgery primarily studies serious diseases that severely threaten the health of the Chinese population, such as hepatocellular carcinoma, bile duct stones, post-hepatitis cirrhosis, and acute liver failure caused by severe hepatitis. During hepatobiliary surgery, drainage tubes are inserted into the patient's body, and doctors typically secure them with tape or clips.
[0003] Liver biopsy is a procedure performed by puncturing a liver organ to obtain a biopsy sample. Patients are usually under local anesthesia. The procedure utilizes negative pressure suction for one second, performed percutaneously under the guidance of ultrasound or CT scans, or directly under laparoscopic monitoring. The resulting liver specimen typically weighs approximately 10-25 mL. After processing, it undergoes histopathological and immunohistochemical staining, and the liver tissue and cell morphology are observed under a microscope. Liver biopsy pathology is primarily used for the differential diagnosis of various liver diseases, such as identifying the nature and cause of jaundice, understanding the degree and activity of liver lesions, providing etiological diagnostic evidence for various types of viral hepatitis, detecting early, quiescent, or compensated cirrhosis, and assessing clinical efficacy. It is internationally recognized as the "gold standard" for determining the severity of liver fibrosis.
[0004] Chinese utility model patent CN216755174U discloses a clamp for fixing drainage tubes in hepatobiliary surgery, comprising a plate body, a fixing structure, and a first adhesive tape. The fixing structure includes two first C-shaped plates, which are coaxially fixed to the upper surface of the plate body, with the notches of the two first C-shaped plates facing to the left. The first adhesive tape is located between the two first C-shaped plates, with the right end of the first adhesive tape connected to the upper surface of the plate body on the right side of the first C-shaped plate, and the left end of the first adhesive tape being a free end. This avoids the problem of squeezing and deforming the drainage tube, ensuring that the inner diameter of the drainage tube is circular. At the same time, while the first adhesive tape adheres to the plate body and the drainage tube, it also exerts a pulling force to the right on the drainage tube, causing the drainage tube to bend slightly to the right, thus securing the drainage tube more tightly.
[0005] While the aforementioned existing technology can make the drainage tube more securely fixed, the method of tightening the C-shaped plate with tape will cause the tape to lose its adhesive strength after long-term use, which may lead to the C-shaped plate being unable to hold the drainage tube. Utility Model Content
[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0007] To address the problem mentioned in the background art that the tape used to tighten the C-shaped plate loses its adhesive strength over time, making it difficult for the C-shaped plate to hold the guide tube, this utility model adopts the following technical solution.
[0008] A fixation structure for a hepatobiliary surgical puncture drainage tube includes a mounting plate. The upper end of the mounting plate is detachably connected to mounting brackets arranged opposite each other on the left and right sides. A fixing ring is rotatably connected between the two mounting brackets. An opening groove is provided on the fixing ring, and the drainage tube passes through the opening groove and is located inside the fixing ring.
[0009] Preferably, a narrowing assembly is installed on the mounting bracket, which reduces the size of the opening groove on the fixing ring.
[0010] Preferably, the upper end of the mounting plate is equipped with multiple connecting components, and the mounting bracket and the connecting components are detachably connected.
[0011] Preferably, the mounting assembly includes a connecting plate and fastening screws. Multiple connecting plates are fixedly connected to the upper end of the mounting plate, and fastening screws are inserted into the outer wall of each connecting plate. The fastening screws are threadedly connected to the outer wall of the mounting bracket.
[0012] Preferably, the inner walls of the mounting brackets on both sides are provided with arc-shaped grooves, and the inner sides of the arc-shaped grooves on both sides are provided with rotating ring grooves. The outer walls of the fixed rings are fixedly connected to the rotating rings, and the rotating rings are rotatably connected to the inner sides of the rotating ring grooves. The fixed rings are rotatably connected to the inner sides of the arc-shaped grooves.
[0013] Preferably, the narrowing assembly includes an adjusting bolt, the fixing ring located at the opening groove is made of a soft material, and the mounting brackets on both sides are provided with through threaded holes near the bottom, with the adjusting bolts connected to the internal threads of the threaded holes.
[0014] Preferably, a rubber cap is fixedly connected to the threaded end of the adjusting bolt.
[0015] Preferably, the outer wall of the fixing ring is provided with multiple anti-slip grooves.
[0016] Preferably, a connecting plate is fixedly connected between the two mounting brackets near the bottom.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. The drainage tube is placed inside the fixing ring by the opening groove. After the drainage tube is placed, the fixing ring is rotated so that the opening groove faces downward, which can prevent the drainage tube from falling off. This allows the drainage tube to be fixed without the use of tape. It also avoids the drainage tube falling off due to the tape losing its adhesiveness after long-term use. This makes the fixation of the drainage tube more secure and easy to operate. The fixing structure can be used multiple times, avoiding waste and reducing the cost of use.
[0019] 2. The anti-slip groove makes it easier to rotate the fixing ring, allowing medical staff to easily rotate the fixing ring so that the opening groove faces downwards, preventing the drainage tube from falling off.
[0020] 3. The connection plate design allows the mounting brackets on both sides to become a single unit, making it easier to install and fix the ring.
[0021] 4. By setting multiple connecting plates, an appropriate number of mounting brackets can be selected and installed according to the actual number of drainage tubes, thereby fixing multiple drainage tubes and making the application range of this fixing structure more extensive.
[0022] 5. The rotating connection between the rotating ring body and the rotating ring groove ensures that the fixed ring body will not fall off during rotation.
[0023] 6. By rotating the adjusting bolts on both sides, the ring can be moved inward simultaneously inside the threaded hole. This will deform the soft material of the fixing ring located at the opening groove, thereby reducing the opening size of the opening groove and making the drainage tube more secure.
[0024] 7. By setting the rubber cap, the rigid contact between the threaded end of the adjusting bolt and the fixed ring can be changed to a soft contact, thereby increasing the service life of the fixed ring. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of a fixation structure for a hepatobiliary surgical puncture and drainage tube in this utility model;
[0026] Figure 2 In this utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0027] Figure 3 This is a schematic diagram of the rotating connection structure between the fixed ring and the mounting brackets on both sides in this utility model;
[0028] Figure 4 This is a schematic diagram of the structure for adjusting the size of the opening groove of the adjusting bolt in this utility model.
[0029] The correspondence between the labels and component names in the attached figures is as follows:
[0030] 100. Mounting plate; 101. Connecting plate; 102. Fastening screws;
[0031] 200. Fixed ring; 201. Opening groove; 202. Mounting bracket; 203. Anti-slip groove; 204. Arc groove; 205. Rotating ring groove; 206. Threaded hole; 207. Adjusting bolt; 208. Connecting plate; 209. Rotating ring. Detailed Implementation
[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0034] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.
[0035] like Figure 1 The diagram shown is a preferred embodiment of the present invention for fixing a hepatobiliary surgical puncture and drainage tube. This embodiment includes a mounting plate 100. The upper end of the mounting plate 100 is detachably connected to mounting brackets 202 arranged opposite each other. A fixing ring 200 is rotatably connected between the two mounting brackets 202. The fixing ring 200 has an opening groove 201. In this embodiment, the drainage tube is placed inside the fixing ring 200 through the opening groove 201. After the drainage tube is placed, the fixing ring 200 is rotated so that the opening groove 201 faces downwards, thus preventing the drainage tube from detaching. This allows the drainage tube to be fixed without the use of tape, avoiding the loss of adhesiveness and subsequent detachment of the drainage tube due to tape losing its stickiness after prolonged use. This makes the fixation of the drainage tube more secure and easier to operate, allowing the fixing structure to be used multiple times, avoiding waste and reducing usage costs.
[0036] like Figure 2 As shown, this is the embodiment of the present invention. Figure 1The enlarged structural diagram at point A shows that multiple connecting plates 101 are fixedly connected to the upper end of the mounting plate 100. Each connecting plate 101 has a fastening screw 102 inserted into its outer wall. The fastening screw 102 is threadedly connected to the outer wall of the mounting bracket 202. In this embodiment, by setting multiple connecting plates 101, an appropriate number of mounting brackets 202 can be selected and installed according to the actual number of drainage tubes, thereby fixing multiple drainage tubes and making the application range of this fixing structure more extensive.
[0037] It is worth noting that the connecting plate 101 and the fastening screw 102 mentioned above are the mounting components in this embodiment. The mounting components include, but are not limited to, the connecting plate 101 and the fastening screw 102. Any component that can connect the connecting plate 101 and the mounting plate 100 can be used in this embodiment.
[0038] like Figure 3 As shown, it is a schematic diagram of the rotating connection structure between the fixed ring body and the mounting brackets on both sides in this embodiment. The outer wall of the fixed ring body 200 is provided with multiple anti-slip grooves 203. In this embodiment, the anti-slip grooves 203 make it easier to rotate the fixed ring body 200, making it easier for medical staff to rotate the fixed ring body 200 so that the opening groove 201 faces downward, preventing the drainage tube from falling off.
[0039] like Figure 3 As shown, in order to make it easier to connect the mounting brackets 202 on both sides, in this embodiment, a connecting plate 208 is fixedly connected between the mounting brackets 202 on both sides near the bottom. In this embodiment, the setting of the connecting plate 208 can make the mounting brackets 202 on both sides become a whole, thereby making it easier to install and fix the ring 200.
[0040] like Figure 4 As shown, this is a schematic diagram of the structure for adjusting the size of the opening slot of the adjusting bolt in this embodiment. The inner walls of the mounting brackets 202 on both sides are provided with arc-shaped grooves 204. Rotating ring grooves 205 are provided on both sides of the inner walls of the arc-shaped grooves 204. Rotating ring bodies 209 are fixedly connected to the outer walls of the fixed ring body 200. The rotating ring body 209 is rotatably connected to the inner walls of the rotating ring grooves 205, and the fixed ring body 200 is rotatably connected to the inner walls of the arc-shaped grooves 204. In this embodiment, the rotatable connection between the rotating ring body 209 and the rotating ring grooves 205 ensures that the fixed ring body 200 will not fall off during rotation.
[0041] like Figure 4As shown, in order to improve the fixing effect of the fixing ring 200 on the drainage tube, in this embodiment, the fixing ring 200 at the opening groove 201 is made of soft material, and the mounting brackets 202 on both sides are provided with through threaded holes 206 near the bottom. The threaded holes 206 are threaded with adjusting bolts 207. In this embodiment, after the drainage tube is placed inside the fixing ring 200, the fixing ring 200 is rotated so that the opening groove 201 is vertically downward. At this time, the adjusting bolts 207 on both sides are rotated to move inward at the same time inside the threaded holes 206. This can move and deform the soft material of the fixing ring 200 at the opening groove 201 inward, thereby reducing the opening size of the opening groove 201 and making the drainage tube more firmly fixed.
[0042] It is worth noting that the aforementioned adjusting bolt 207 is the narrowing component in this embodiment. The narrowing component includes, but is not limited to, the adjusting bolt 207. Any component that can reduce the size of the opening groove 201 on the fixing ring 200 can be applied to this embodiment.
[0043] like Figure 4 As shown, in order to increase the service life of the fixed ring 200, in this embodiment, a rubber cap is fixedly connected to the threaded end of the adjusting bolt 207. In this embodiment, by setting the rubber cap, the rigid contact between the threaded end of the adjusting bolt 207 and the fixed ring 200 can be changed to a soft contact, thereby increasing the service life of the fixed ring 200.
[0044] In summary, this embodiment is used as follows:
[0045] First, with the opening slot 201 on the fixing ring 200 facing upwards, insert the drainage tube into the fixing ring 200 through the opening slot 201. Then, rotate the fixing ring 200 so that the opening slot 201 faces downwards, thereby limiting the travel between the drainage tube and the connecting plate 208 and preventing it from falling off. Next, rotate the adjusting bolts 207 on both sides to move them inwards simultaneously inside the threaded holes 206, thereby deforming the soft material of the fixing ring 200 located at the opening slot 201 inwards, thereby reducing the opening size of the opening slot 201. Through the deformation of the soft material, the fixing ring 200 can no longer rotate, making the drainage tube more securely fixed and easier to use.
[0046] In this embodiment, the above content is a further detailed description of the present utility model in conjunction with specific implementation methods. It should not be considered that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all of these should be considered to fall within the protection scope defined by the claims submitted by the present utility model.
Claims
1. A fixation structure for a hepatobiliary surgical puncture and drainage tube, comprising a mounting plate (100), characterized in that, The upper end of the mounting plate (100) is detachably connected to the mounting brackets (202) arranged opposite to each other on the left and right. A fixed ring (200) is rotatably connected between the two mounting brackets (202). An opening groove (201) is provided on the fixed ring (200). The drainage tube passes through the opening groove (201) and is located inside the fixed ring (200).
2. The fixation structure for hepatobiliary surgical puncture and drainage tubes according to claim 1, characterized in that, A narrowing assembly is installed on the mounting bracket (202), which reduces the opening groove (201) on the fixing ring (200).
3. The fixation structure for hepatobiliary surgical puncture and drainage tube according to claim 2, characterized in that, Multiple connecting components are mounted on the upper end of the mounting plate (100), and the mounting bracket (202) is detachably connected to the connecting components.
4. The fixation structure for hepatobiliary surgical puncture and drainage tube according to claim 3, characterized in that, The mounting assembly includes a connecting plate (101) and fastening screws (102). Multiple connecting plates (101) are fixedly connected to the upper end of the mounting plate (100). Each connecting plate (101) has a fastening screw (102) inserted into its outer wall. The fastening screw (102) is threadedly connected to the outer wall of the mounting bracket (202).
5. The fixation structure for hepatobiliary surgical puncture and drainage tube according to claim 4, characterized in that, The inner walls of the mounting brackets (202) on both sides are provided with arc grooves (204), and the inner sides of the arc grooves (204) on both sides are provided with rotating ring grooves (205). The outer walls of the fixed ring body (200) are fixedly connected with rotating ring bodies (209). The rotating ring body (209) is rotatably connected to the inside of the rotating ring groove (205), and the fixed ring body (200) is rotatably connected to the inside of the arc groove (204).
6. The fixation structure for hepatobiliary surgical puncture and drainage tube according to claim 5, characterized in that, The constriction assembly includes an adjusting bolt (207), a fixed ring (200) located at the opening groove (201) made of soft material, and two mounting brackets (202) on both sides with through threaded holes (206) near the bottom. The adjusting bolt (207) is connected to the internal thread of the threaded hole (206).
7. The fixation structure for hepatobiliary surgical puncture and drainage tubes according to claim 6, characterized in that, The threaded end of the adjusting bolt (207) is fixedly connected with a rubber cap.
8. The fixation structure for hepatobiliary surgical puncture and drainage tube according to claim 7, characterized in that, The outer wall of the fixed ring (200) is provided with multiple anti-slip grooves (203).
9. The fixation structure for hepatobiliary surgical puncture and drainage tube according to claim 8, characterized in that, A connecting plate (208) is fixedly connected between the two mounting brackets (202) near the bottom.