A guided double-lumen T-tube
By designing a guided double-lumen T-tube and utilizing soft silicone and a guide wire mechanism, the problem of liquid leakage caused by T-tube swaying was solved, achieving the effect of simplified replacement and reduced trauma.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAOZUO PEOPLES HOSPITAL
- Filing Date
- 2025-04-22
- Publication Date
- 2026-07-31
AI Technical Summary
Conventional T-tubes are prone to shifting and deviating during bile drainage, causing fluid leakage and requiring reoperation to replace the drainage tube, increasing patient trauma.
Design a guided double-lumen T-tube, comprising a branch tube and a horizontal tube, with an internal guidewire mechanism, made of soft medical silicone. The inner bottom tube, inner straight tube, and inner top tube form a catheter, which is connected to the horizontal tube and branch tube through an opening. The outer shell restricts the volume of the horizontal tube, facilitating the replacement of the T-tube.
It reduces the risk of fluid blockage, lowers the need for surgical incisions, simplifies the T-tube replacement process, and avoids secondary surgical trauma.
Smart Images
Figure CN224573072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary devices, and in particular to a guide-type double-lumen T-tube. Background Technology
[0002] A T-tube is a medical device named for its T-shaped appearance. It is typically made of materials such as rubber or silicone, giving it a degree of flexibility and elasticity. T-tubes are primarily used in biliary tract surgeries to drain bile.
[0003] When using a conventional T-tube for bile drainage, the T-tube may shift due to movement, leading to leakage of the drainage fluid and contamination of the tube. This necessitates reopening the tube and placing a new one, causing trauma to the patient. Therefore, a guided double-lumen T-tube is needed to place a guide wire for the drainage tube, facilitating subsequent connection and avoiding the need for a second surgery. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of conventional T-tubes, which are inconvenient for subsequent guidance, and to provide a guiding double-lumen T-tube.
[0005] The technical solution to achieve the above objective is: a guide-type double-lumen T-tube, including a T-tube body, the T-tube body including a branch tube and a horizontal tube, the top end of the branch tube being connected to and communicating with the horizontal tube, the bottom end of the side wall of the branch tube having an outlet hole, the top end of the horizontal tube having an opening hole, and a guide wire mechanism being provided inside the T-tube body.
[0006] Preferably, the T-tube body is made of soft medical-grade silicone.
[0007] Preferably, the bent sidewall of the horizontal tube is movably fitted with an outer shell.
[0008] Preferably, the guide wire mechanism includes an inner bottom tube, an inner straight tube, an inner top tube, and side holes. The top end of the inner bottom tube is connected to and communicates with the inner straight tube, the top end of the inner straight tube is connected to and communicates with the inner top tube, and the side wall of the inner top tube has multiple side holes.
[0009] Preferably, the sidewall of the inner bottom tube passes through the outlet hole, and the sidewall of the inner top tube passes through the opening.
[0010] Preferably, both the inner bottom tube and the inner top tube are bent tubes, and the inner bottom tube, inner straight tube and inner top tube are all made of rigid medical material, with the sidewall of the inner top tube closely attached to the sidewall of the opening.
[0011] Preferably, the sidewall of the opening is provided with a groove, and the sidewall of the groove is in contact with the inner top tube semi-enclosed.
[0012] The beneficial effects of this utility model are: 1) The inner bottom tube, inner straight tube, and inner top tube form a conduit. The inner bottom tube is passed through the opening and into the horizontal tube and branch tube, and then out through the outlet. The inner straight tube is placed inside the horizontal tube and branch tube, while the inner top tube is attached to the side wall edge of the opening to increase the distance between the opening and the inner top tube, thereby reducing the possibility of the drainage fluid clogging at the opening. At the same time, the drainage fluid can also pass through the inner hole of the conduit, reducing the impact of the conduit on the drainage efficiency of the T-tube body. The two ends of the horizontal tube are bent downwards, so that the two ends of the horizontal tube are close to the side wall of the branch tube, and then covered with the outer shell, so that the horizontal tube is confined inside the outer shell, thereby reducing the volume occupied by the T-tube body, facilitating the placement of the T-tube body, and also reducing the surgical incision. Then, the outer shell is pulled out from the surgical opening with surgical forceps, and the horizontal tube will unfold again under its own elasticity, so that the T-tube body maintains a T-shape.
[0013] 2) When it is necessary to replace the T-tube body, the relatively soft physical properties of the T-tube body can be used to allow the T-tube body to be directly pulled out from the outside of the catheter and connected to the new drainage tube at one end of the catheter, thereby avoiding the need to re-insert the drainage T-tube during the open surgery. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the placement structure of this utility model; Figure 2 This is a schematic diagram of the retractable installation state of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the inner tube structure of this utility model; Figure 5 This is a schematic diagram of the T-tube body structure of this utility model.
[0015] Icon labels: 1. Branch pipe; 2. Horizontal pipe; 3. Opening; 4. Outlet; 5. Outer shell; 6. Inner bottom pipe; 7. Inner straight pipe; 8. Inner top pipe; 9. Side hole; 10. Groove. Detailed Implementation
[0016] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Reference Appendix Figure 1-5 A guide tube with two lumens includes a T-tube body made of soft medical silicone. The T-tube body includes a branch tube 1 and a horizontal tube 2. The bent side wall of the horizontal tube 2 is movably fitted with a shell 5. When the horizontal tube 2 is retracted into the shell 5, the horizontal tube 2 and the branch tube 1 form a Y-shape. The top end of the branch tube 1 is connected to and communicates with the horizontal tube 2. The bottom end of the side wall of the branch tube 1 is provided with an outlet hole 4, and the top end of the horizontal tube 2 is provided with an opening hole 3. A guide wire mechanism is provided inside the T-tube body.
[0019] Reference Appendix Figure 1-4 The guide wire mechanism includes an inner bottom tube 6, an inner straight tube 7, an inner top tube 8, and side holes 9. The top end of the inner bottom tube 6 is connected to and communicates with the inner straight tube 7, and the top end of the inner straight tube 7 is connected to and communicates with the inner top tube 8. The side wall of the inner top tube 8 has multiple side holes 9. The side wall of the inner bottom tube 6 passes through the outlet hole 4, and the side wall of the inner top tube 8 passes through the opening hole 3. Both the inner bottom tube 6 and the inner top tube 8 are bent tubes. The inner bottom tube 6, the inner straight tube 7, and the inner top tube 8 are all made of rigid medical material. The side wall of the inner top tube 8 is in close contact with the side wall of the opening hole 3, and the side wall of the inner top tube 8 and the top end side wall of the inner straight tube 7 are also in contact with the inner side wall of the horizontal tube 2.
[0020] The inner bottom tube 6, inner straight tube 7, and inner top tube 8 form a conduit. The inner bottom tube 6 is passed through the opening 3 and into the horizontal tube 2 and branch tube 1, and then out through the outlet 4. The inner straight tube 7 is placed inside the horizontal tube 2 and branch tube 1, while the inner top tube 8 is attached to the side wall edge of the opening 3 to increase the distance between the opening 3 and the inner top tube 8, thereby reducing the possibility of the guiding fluid being blocked at the opening 3. At the same time, the drained fluid can also pass through the inner hole 9 of the conduit, reducing the impact of the conduit on the drainage efficiency of the T-tube body. The two ends of the horizontal tube 2 are bent downwards so that the two ends of the horizontal tube 2 are close to the side wall of the branch tube 1, and the outer shell 5 is used to cover it, so that the horizontal tube 2 is restricted inside the outer shell 5, thereby reducing the volume occupied by the T tube body, facilitating the placement of the T tube body, and also reducing the surgical incision. Then, the outer shell 5 is pulled out from the surgical opening with surgical forceps, and the horizontal tube 2 will unfold again under its own elasticity, so that the T tube body maintains the T-shaped state. When it is necessary to replace the T-tube body, the relatively soft physical properties of the T-tube body allow it to be directly pulled out from the outside of the catheter and connected to a new drainage tube at one end of the catheter, thus avoiding the need to re-insert the drainage T-tube during the open surgery.
[0021] Reference Appendix Figure 1 and attached Figure 5 The side wall of the opening 3 is provided with a groove 10, and the side wall of the groove 10 is partially wrapped and attached to the inner top tube 8.
[0022] Taking advantage of the relatively soft physical properties of the horizontal tube 2, the groove 10 can wrap around and adhere to the bottom surface of the inner jacking tube 8, so that the inner jacking tube 8 can remain attached to the opening 3 without external force, thus ensuring the stability of the inner jacking tube 8.
[0023] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A guided double-lumen T-tube, comprising a T-tube body, the T-tube body comprising a branch pipe (1) and a cross pipe (2), the top end of the branch pipe (1) being connected and communicated with the cross pipe (2), characterized in that, The side wall of the branch pipe (1) is provided with an outlet hole (4), the top of the horizontal pipe (2) is provided with an opening hole (3), and a guide wire mechanism is provided inside the T-tube body.
2. A guided double lumen T tube as claimed in claim 1, wherein, The body of the T-tube is made of soft medical-grade silicone.
3. A guided double lumen T tube according to claim 2, wherein, The bent sidewall of the horizontal tube (2) is movably fitted with a shell (5).
4. A guided double lumen T tube according to claim 3, wherein, The guide wire mechanism includes an inner bottom tube (6), an inner straight tube (7), an inner top tube (8), and side holes (9). The top end of the inner bottom tube (6) is connected to and communicates with the inner straight tube (7). The top end of the inner straight tube (7) is connected to and communicates with the inner top tube (8). The side wall of the inner top tube (8) is provided with multiple side holes (9).
5. A guided double lumen T tube according to claim 4, wherein, The side wall of the inner bottom tube (6) passes through the outlet hole (4), and the side wall of the inner top tube (8) passes through the opening (3).
6. A guided double lumen T tube as defined in claim 4, wherein, The inner bottom tube (6) and the inner top tube (8) are both set as bent tubes. The inner bottom tube (6), the inner straight tube (7) and the inner top tube (8) are all made of rigid medical material. The side wall of the inner top tube (8) is closely attached to the side wall of the opening (3).
7. A guided double lumen T tube as defined in claim 4, wherein, The sidewall of the opening (3) is provided with a groove (10), and the sidewall of the groove (10) is partially wrapped and attached to the inner top tube (8).