Telescopic biliary tract drainage T-shaped tube structure and unfolding method thereof

Abstract

The invention relates to a telescopic biliary tract drainage T-shaped tube structure and an unfolding method thereof. The problems that an existing biliary tract drainage T-shaped tube is long in surgical wound, long in surgical time and prone to causing infection are solved. The device comprises a T-shaped main pipe, the T-shaped main pipe comprises a main pipe transverse pipe arranged in the biliary tract, one side of the middle of the main pipe transverse pipe is connected with a main pipe vertical pipe extending out for drainage, the device further comprises a T-shaped auxiliary pipe, the T-shaped auxiliary pipe comprises an auxiliary transverse pipe and an auxiliary vertical pipe, and the two ends of the auxiliary transverse pipe are covered with air films. The T-shaped auxiliary pipe is inserted from the main pipe vertical pipe to the coaxial position of the auxiliary transverse pipe and the main pipe transverse pipe, the two ends of the main pipe transverse pipe are flexible pipes, and the two ends of the main pipe transverse pipe are folded inwards and extrude the air film to the inner side of the auxiliary transverse pipe. In a biliary tract catheterization operation, the T-tube transverse tube can be folded and shrunk and then placed in, and the T-tube transverse tube is inflated and unfolded after being placed in, so that the wound of the biliary tract catheterization operation is effectively reduced, the operation time is shortened, the infection probability is reduced, and the operation difficulty and the operation risk are reduced.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and relates to a drainage tube for biliary tract surgery, in particular to a telescopic biliary drainage T-tube structure and its deployment method. Background Art

[0002] T-tube drainage is a commonly used drainage method after biliary tract surgery. The T-tube can prevent the lumen from narrowing, maintain unobstructed bile drainage, reduce biliary tract pressure, avoid obstruction, and prevent the need for re-exploration of the biliary tract after surgery; due to the relatively long horizontal tube of the T-tube, when placing it, a cut about the same length as the horizontal tube needs to be made on the common bile duct and then the T-tube is placed in, and then the incision is sutured to the position of the vertical tube of the T-tube; in order to smoothly insert the horizontal tube of the T-tube, the current method of placing the T-tube has a relatively long incision, which not only increases the difficulty of the surgery, but also is prone to infection due to the large incision and long operation time. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems of long surgical incisions, long operation time, and easy infection in the current biliary T-tube drainage surgery, and to provide a telescopic biliary drainage T-tube structure and its deployment method. Through the telescopic design of the biliary drainage T-tube, the T-tube can be inserted when it is contracted and then deployed after insertion, reducing the length requirement of the surgical incision.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a telescopic biliary drainage T-tube structure, including a T-shaped main tube. The T-shaped main tube includes a main horizontal tube inserted into the biliary tract, and one side of the middle of the main horizontal tube is connected with a main vertical tube extending for drainage. It also includes a T-shaped auxiliary tube. The T-shaped auxiliary tube includes an auxiliary horizontal tube and an auxiliary vertical tube. The two ends of the auxiliary horizontal tube are covered with air membranes. The T-shaped auxiliary tube is inserted into the main vertical tube until the auxiliary horizontal tube and the main horizontal tube are coaxial. The two ends of the main horizontal tube are flexible tubes, and the two ends of the main horizontal tube are folded inward and the ends squeeze the air membranes to the inner side of the auxiliary horizontal tube.

[0005] The main horizontal tube of the T-shaped main tube of this device can be folded inward and contracted and supported by the T-shaped auxiliary tube, reducing the length of the main horizontal tube during insertion and thus reducing the surgical incision. After insertion, the folded and contracted main horizontal tube is pushed out by inflating the air membranes to complete the catheterization action for biliary drainage. This device can effectively reduce the surgical incision of biliary catheterization, reduce the operation time, and reduce the infection rate.

[0006] Preferably, the length and diameter of the auxiliary horizontal tube do not exceed the inner diameter of the main vertical tube.

[0007] Preferably, the diagonal length of the cross-section of the axis of the auxiliary horizontal tube does not exceed the inner diameter of the main vertical tube.

[0008] Preferably, the auxiliary horizontal tube is made of medical ABS material, and the auxiliary vertical tube is a flexible tube.

[0009] Preferably, the T-shaped main tube is made of medical silicone material.

[0010] Preferably, the auxiliary vertical tube of the T-shaped auxiliary tube is an inflation and deflation tube. Preferably, both ends of the main tube horizontal tube are flared mouths with a smaller thickness towards the outside.

[0011] Preferably, the outer walls at both ends of the main tube horizontal tube are provided with anti-slip ridges.

[0012] A method of using a telescopic biliary drainage T-tube structure, using the above telescopic biliary drainage T-tube structure, includes the following steps: S1. Insert the T-shaped auxiliary tube into the inside of the T-shaped main tube from the open end of the main tube vertical tube until the auxiliary horizontal tube coincides with the axis of the main tube horizontal tube; S2. Fold the two ends of the main tube horizontal tube inward, squeeze the air film, and push the air film into the inside of the auxiliary horizontal tube to make the main tube horizontal tube in a folded and contracted state; S3. After inserting the main tube horizontal tube in the folded and contracted state, the auxiliary vertical tube is connected to an air source device to inflate the T-shaped auxiliary tube, so that the air film bulges outwards and pushes the inwardly folded ends of the main tube horizontal tube outwards to unfold; S4. The T-shaped auxiliary tube is deflated or air is pumped outwards so that the air film is flush with the end face of the auxiliary horizontal tube or retracts into the end face of the auxiliary horizontal tube; S5. Withdraw the T-shaped auxiliary tube from the main tube vertical tube.

[0013] Preferably, the air source device is a syringe, and the inflation volume of the T-shaped auxiliary tube is quantitatively inflated after calculation.

[0014] In the biliary catheterization operation of the present invention, the cross tube of the T-tube can be folded and contracted and then inserted. After insertion, it is inflated and unfolded, effectively reducing the incision of the biliary catheterization operation, reducing the operation time, reducing the infection probability, and reducing the operation difficulty and operation risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 It is a structural diagram of a T-shaped main tube of the present invention.

[0017] Figure 2 It is a structural diagram of a T-shaped auxiliary tube of the present invention.

[0018] Figure 3 It is a schematic diagram of the combination of a T-shaped auxiliary tube and a T-shaped main tube of the present invention.

[0019] Figure 4It is a schematic diagram of the contracted state of the T-shaped main pipe of the present invention.

[0020] Figure 5 It is a schematic diagram of the expanded state of the T-shaped main pipe of the present invention.

[0021] In the figure: 1. Main pipe vertical pipe, 2. Main pipe horizontal pipe, 3. Flared mouth, 4. Raised pattern, 5. Auxiliary vertical pipe, 6. Auxiliary horizontal pipe, 7. Air film, 8. Connector. Specific embodiments

[0022] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0023] Embodiment: A telescopic biliary drainage T-shaped tube structure, as Figures 1-5 shown. This device includes a T-shaped main pipe, as Figure 1 shown. The T-shaped main pipe includes a main pipe horizontal pipe 2 inserted into the biliary tract, and one side of the middle of the main pipe horizontal pipe is connected with a main pipe vertical pipe 1 extending out for drainage. The T-shaped main pipe is a tee structure, and both ends of the main pipe horizontal pipe are flared mouths 3 with a smaller thickness towards the outside. Raised patterns 4 for anti-slip are provided on the outer walls at both ends of the main pipe horizontal pipe. The whole T-shaped main pipe is made of medical silicone material.

[0024] As Figure 2 shown, this device also includes a T-shaped auxiliary pipe. The T-shaped auxiliary pipe includes an auxiliary horizontal pipe 6 and an auxiliary vertical pipe 5, and air films 7 are covered at both ends of the auxiliary horizontal pipe 6. The auxiliary horizontal pipe 6 is made of medical ABS material and has a rigid support function to prevent the auxiliary horizontal pipe 6 from expanding during inflation and thus squeezing the main pipe horizontal pipe to expand. The auxiliary vertical pipe 5 is a flexible pipe and can be made of medical silicone material and used as an air charging and discharging pipe.

[0025] As Figure 3 shown, during use, the T-shaped auxiliary pipe is inserted into the main pipe vertical pipe 1 until the auxiliary horizontal pipe 6 and the main pipe horizontal pipe 2 are coaxially positioned. Both ends of the main pipe horizontal pipe are flexible pipes. Both ends of the main pipe horizontal pipe 2 are folded inwards, and the end portions squeeze the air film 7 to the inner side of the auxiliary horizontal pipe 6. The diagonal length of the cross-section of the axis of the auxiliary horizontal pipe does not exceed the inner diameter of the main pipe vertical pipe.

[0026] The usage method of the above telescopic biliary drainage T-shaped tube structure includes the following steps: S1, Insert the T-shaped auxiliary pipe into the interior of the T-shaped main pipe from the open end of the main pipe vertical pipe until the auxiliary horizontal pipe coincides with the axis of the main pipe horizontal pipe; as Figure 3 shown; S2, Fold both ends of the main pipe horizontal pipe inwards, squeeze the air film, and push the air film into the interior of the auxiliary horizontal pipe to make the main pipe horizontal pipe in a folded and contracted state; as Figure 4 shown; S3. After placing the main pipe horizontal pipe in the folded and contracted state, the auxiliary vertical pipe is connected to the air source device to inflate the T-shaped auxiliary pipe, causing the air film to bulge outwards, and pushing outwards and unfolding the end portion of the main pipe horizontal pipe that is folded inwards; as Figure 5 shown; the air source device is a syringe, and the inflation amount of the T-shaped auxiliary pipe is quantitatively inflated after calculation; S4. The T-shaped auxiliary pipe is deflated or air is pumped outwards, so that the air film is flush with the end face of the auxiliary horizontal pipe or retracts into the end face of the auxiliary horizontal pipe; S5. The T-shaped auxiliary pipe is withdrawn from the main pipe vertical pipe.

Claims

1. A retractable T-tube structure for bile duct drainage, comprising a T-tube main tube, wherein the T-tube main tube comprises a main transverse tube inserted into the bile duct, and a main vertical tube extending out for drainage is connected to one side of the middle of the main transverse tube, characterized in that: It also includes a T-shaped auxiliary pipe, which includes an auxiliary cross pipe and an auxiliary vertical pipe. Both ends of the auxiliary cross pipe are covered with air films. The T-shaped auxiliary pipe is inserted from the main vertical pipe until the auxiliary cross pipe and the main cross pipe are coaxial. Both ends of the main cross pipe are flexible pipes. Both ends of the main cross pipe are folded inwards and the ends squeeze the air film into the inner side of the auxiliary cross pipe.

2. The telescopic biliary drainage T-tube structure according to claim 1, characterized in that: The length and diameter of the auxiliary horizontal pipe do not exceed the inner diameter of the main vertical pipe.

3. The telescopic biliary drainage T-tube structure according to claim 2, characterized in that: The diagonal length of the axial cross section of the auxiliary horizontal pipe does not exceed the inner diameter of the main vertical pipe.

4. The telescopic biliary drainage T-tube structure according to claim 1, characterized in that: The auxiliary horizontal pipe is made of medical ABS material, and the auxiliary vertical pipe is a flexible pipe.

5. The telescopic biliary drainage T-tube structure according to claim 1, characterized in that: The T-shaped main pipe is made of medical silicone material.

6. The telescopic biliary drainage T-tube structure according to claim 1, characterized in that: The auxiliary vertical pipe of the T-shaped auxiliary pipe is an air charging and discharging pipe.

7. The telescopic biliary drainage T-tube structure according to claim 1, characterized in that: Both ends of the main cross pipe are bell mouths with decreasing thickness toward the outside.

8. The telescopic biliary drainage T-tube structure according to claim 1, characterized in that: The outer walls of both ends of the main cross pipe are provided with anti-slip convex patterns.

9. A method for using a telescopic biliary drainage T-tube structure, using the telescopic biliary drainage T-tube structure according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, insert the T-shaped auxiliary pipe into the T-shaped main pipe from the open end of the main vertical pipe until the axis of the auxiliary horizontal pipe coincides with the axis of the main horizontal pipe; S2, folding both ends of the main cross pipe inwards, squeezing the air film, and pushing the air film into the interior of the auxiliary cross pipe, so that the main cross pipe is in a folded and contracted state; S3, after the main transverse tube in the folded and contracted state is placed, the auxiliary vertical tube is connected to the air source device to inflate the T-shaped auxiliary tube, so that the air film bulges outward, and the inwardly folded end of the main transverse tube is pushed outward to unfold; S4, the T-shaped auxiliary tube is deflated or evacuated to make the air film flush with the end face of the auxiliary transverse tube or retracted into the end face of the auxiliary transverse tube; S5, pull out the T-shaped auxiliary pipe from the main vertical pipe.

10. The method for using the telescopic biliary drainage T-tube structure according to claim 9, characterized in that: The gas source device is a syringe, and the gas volume of the T-shaped auxiliary tube is calculated and then quantitatively inflated.

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