Disposable biliary tract T tube in-vitro multifunctional fixing drainage set

Abstract

The invention discloses a disposable biliary tract T-tube in-vitro multifunctional fixing drainage set. The disposable biliary tract T-tube in-vitro multifunctional fixing drainage set comprises a skin attaching base plate, a pipeline fixing base, a stepped clamping valve, a drainage connector, a sealing cover and a one-way breathable waterproof film. A central through hole of the chassis allows the T tube to penetrate out, and the medical strong adhesive on the bottom surface can fit the skin for a long time; the pipeline fixing base is of a concentric double-cylinder structure, and four levels of pinch valves are arranged in the pipeline fixing base so that the T pipe can be clamped step by step. The drainage interface can be quickly and externally connected with a drainage bag; and one side of the cover body is provided with a one-way breathable film, so that water proofing during bathing and daily vapor permeability are realized. The device can be worn for 8 weeks at a time, has the functions of fixing, clamping, drainage, water prevention, ventilation and easy dressing change, remarkably reduces the occurrence rate of T-tube related infection and dermatitis, and relieves the burden of patients and medical care.

Description

Technical Field

[0001] The invention belongs to a medical device for biliary tract surgery, in particular to an extracorporeal fixing and nursing device for a T-shaped drainage tube. Background Art

[0002] After common bile duct exploration, a T-tube needs to be left in place for 6 to 8 weeks. After surgery, the tube is clamped intermittently by elevation and then completely clamped until extubation. The traditional method of wrapping and fixing with gauze and adhesive tape has the following drawbacks: the adhesive tape becomes loose due to sweating, and the T-tube is easy to slip off; the gauze is not waterproof, and bathing is restricted; exudate accumulates around the tube, causing dermatitis and infection; repeated dressing changes increase the workload of medical staff and the pain of patients; the wrapping gauze needs to be repeatedly removed during clamping and re-drainage, increasing the chance of contamination. Therefore, there is an urgent clinical need for an extracorporeal management device that combines "firm fixation, complete waterproofing, continuous moisture removal, and repeated clamping / drainage." Summary of the Invention

[0003] The purpose of the present invention is to provide a disposable biliary T-tube extracorporeal multifunctional fixed drainage set to solve the problems raised in the above background technology.

[0004] The present invention is implemented as follows: a T-shaped biliary drainage tube external fixed drainage set, comprising a base, a tube fixing base, a sealing cover, a one-way breathable membrane, a pinch valve, and a drainage interface. The features include: the base is securely fixed to the skin; the tube fixing base is securely fixed to the base to form an integral unit; the pinch valve and drainage interface are securely fixed to the tube fixing base; a one-way breathable membrane is provided on one side of the sealing cover, and the sealing cover is detachably connected to the tube fixing base via a snap-fit ​​groove.

[0005] The base plate has a diameter of 6 cm and a long-lasting medical adhesive on the bottom, which is not affected by sweat and external water. The base plate can be firmly fixed to the skin for a long time and does not need to be replaced during the 8-week period waiting for the T-tube to be removed. The bonded skin area will not cause allergies and infections. The central circular hole of the base plate has a diameter of 2 cm, and the T-tube is located in the center of the circular hole, which is convenient for dressing changes around the drainage tube.

[0006] The tube fixing seat is connected to the base, with a height of 1.8 cm, an inner circle diameter of 4 cm, and an outer circle diameter of 5 cm. A pinch valve is embedded between the inner and outer circles. The four-stage pinch valve, which gradually narrows counterclockwise, corresponds to the different height requirements of traditional T-tube elevation, eliminating the tedious steps of raising the T-tube after surgery. The tube fixing seat can accommodate at least 30 cm of 12Fr to 26Fr model T-tube extracorporeal tubing.

[0007] The inner ring of the pipe fixing seat is distributed with 4 circular holes with a diameter of 9 mm. Which hole the T-tube passes through depends on the length of the T-tube outside the body and whether the T-tube is tightly and firmly connected to the drainage interface.

[0008] The outer ring of the pipeline fixing seat is inlaid with a drainage interface, which is set at a 30° angle along the counterclockwise tangent direction, so that the inner port can be connected to a T-shaped drainage tube, and the outer port can be connected to a stopcock or a drainage bag.

[0009] The sealing cover is connected to the outer ring of the pipeline fixing seat by a buckle, is waterproof and transparent, and is convenient for observing the T-tube and the skin around the tube, so as to prepare for timely dressing changes.

[0010] One side of the sealing cover is inlaid with 1cm 2 One-way breathable membrane.

[0011] The invention discloses a biliary T-shaped drainage tube extracorporeal management kit, which is designed to facilitate dressing changes around the T-tube, firmly fix to the skin, be completely waterproof, continuously dehumidify, and facilitate switching between clamping and unobstructed drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the top view of the disposable biliary T-tube extracorporeal multifunctional fixed drainage set of the present invention.

[0013] Figure 2 This is a schematic diagram of the oblique top view of the structure of the disposable biliary T-tube extracorporeal multifunctional fixed drainage set of the present invention.

[0014] Figure 3 This is a schematic side view of the structure of the disposable biliary T-tube extracorporeal multifunctional fixed drainage set of the present invention.

[0015] Figure 4 This is a schematic diagram of the top structure of the disposable biliary T-tube extracorporeal multifunctional fixed drainage set of the present invention.

[0016] In the figure: 1. Center circular hole of base; 2. Inner circular hole of pipe fixing seat; 3. Pipe fixing seat; 4. Stepped pinch valve; 5. Inner ring of pipe fixing seat; 6. Outer ring of pipe fixing seat; 7. Drainage interface; 8. Base; 9. Plug; 10. Sealing cover; 11. One-way breathable membrane. DETAILED DESCRIPTION

[0017] according to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4The present invention provides a disposable biliary T-tube extracorporeal multifunctional fixed drainage set, comprising a medical soft silicone base plate (8) with a diameter of 6 cm, a circular hole (1) with a diameter of 2 cm provided in the center of the base plate (8) for the T-tube to pass through, a long-lasting medical adhesive coated on the bottom of the base plate (8), a pipeline fixing seat (3) fixed on the base plate (8), the pipeline fixing seat (3) being a concentric cylindrical cavity with a diameter difference of 1 cm formed by an inner ring (5) and an outer ring (6), the inner ring (5) of the pipeline fixing seat (3) having a diameter of 4 cm and four circular holes (2) with a diameter of 9 mm provided at the bottom, a four-stage clamping valve (4) which gradually narrows counterclockwise at the bottom of the annular cavity of the pipeline fixing seat (3), an outer ring (6) of the pipeline fixing seat (3) having a diameter of 5 cm and a conical drainage interface (7) and a matching stopcock (9).

[0018] The chassis (8) is made of medical silica gel with a hardness of 40A and a thickness of 3mm, and the adhesive layer is acrylic pressure-sensitive adhesive with a thickness of 1mm and an adhesion force of ≥10N / cm².

[0019] The pipeline fixing seat (3) is made of medical silicone rubber with a hardness of 70A, a height of 1.8 cm, a thickness of 3 mm, and is injection molded and integrally formed with the chassis (8), the clamping valve (4), and the drainage interface (7).

[0020] There are 4 groups of pinch valves (4) made of 70A hardness medical silicone rubber, located at the bottom of the pipeline fixing seat (3), with a height of 9mm and a width of 5mm, in the shape of a triangular cone. The bottom of the triangular cone is fixed on the inner and outer rings of the pipeline fixing seat (3), with the tips facing each other. The inner and outer spacings of the tips of the 4 groups of pinch valves are 4mm, 3mm, 2mm, and 1mm respectively in the counterclockwise direction.

[0021] The inner ring (5) of the pipeline fixing seat (3) has four circular holes (2) around the circumference, which are located at the bottom of the pipeline fixing seat (3) between the inner ring (5) and the clamping valve (4) and have a diameter of 9 mm.

[0022] The drainage interface (7) and the stopcock (9) are made of medical silicone rubber with a hardness of 60A. The drainage interface (7) is located at a height of 9mm from the outer ring (6) of the pipeline fixing seat (3). It is conical in design, with an inner diameter of 3mm, an outer diameter of 8mm, a thickness of 1mm, a taper angle of 15°, and is generally tangentially 30° in the counterclockwise direction.

[0023] The sealing cover (10) is a transparent polyurethane film with a thickness of 0.1-0.15 mm. The material of the mother-and-child buckle at the connection between the sealing cover (10) and the outer ring (6) of the pipeline fixing seat (3) is a medical polypropylene / silicone rubber composite. The circumferential mother-and-child buckle is firmly locked and waterproof.

[0024] The one-way breathable membrane (11) has an area of ​​1 cm 2, is an expanded polytetrafluoroethylene microporous membrane with a pore size of 0.2-0.5μm, water column static pressure>100 cmH2O, impermeable, and vapor permeability>800 g / m 2 ·24 hours.

Claims

1. A disposable biliary T-tube extracorporeal multifunctional fixed drainage set, characterized by: It includes a chassis with a circular hole in the center. The chassis is connected to a pipeline fixing seat. The pipeline fixing seat is divided into an inner ring and an outer ring. A pinch valve is provided between the inner and outer rings. The pinch valve gradually narrows counterclockwise. Circular holes are distributed between the pinch valves at the bottom of the inner ring of the pipeline fixing seat. A drainage interface is provided in the middle of the outer ring of the pipeline fixing seat. The outside of the interface is closed by a plug. The top of the outer ring of the pipeline fixing seat is connected to a sealing cover by a buckle. A one-way breathable membrane is embedded on one side of the sealing cover.

2. The disposable biliary T-tube extracorporeal multifunctional fixed drainage set according to claim 1, characterized in that: The base is soft and can closely fit the skin near the costal arch, and is coated with strong adhesive on the skin side, so it has anti-allergic and anti-infection characteristics.

3. The disposable biliary T-tube extracorporeal multifunctional fixed drainage set according to claim 1, characterized in that: The pipeline fixing seat accommodates and clamps the external part of the T-tube. Four groups of clamping valves are provided at the bottom of the pipeline fixing seat. Four circular holes are distributed between the clamping valves on the inner ring of the pipeline fixing seat. A drainage interface is fixed on the outer ring of the pipeline fixing seat, which is arranged at a 30° angle along the counterclockwise tangent direction.

4. The disposable biliary T-tube extracorporeal multifunctional fixed drainage set according to claim 1, characterized in that: A one-way breathable membrane is provided on one side of the sealing cover, and the sealing cover is tightly connected to the outer ring of the pipeline fixing seat by means of a buckle.

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