A pressure-resistant hepatobiliary surgical drainage device

Abstract

This invention belongs to the field of medical device technology, specifically referring to a pressure-resistant hepatobiliary surgical drainage device, comprising an anti-compression connector and a positive pressure drainage device. The anti-compression connector provides a built-in protective tube as an intermediary to prevent direct force on the drainage tube. Through a buffer spring, a conical silicone sleeve, and a lever-type elastic system composed of a synchronous sleeve shaft, a torsion spring, and a resistance wheel, it effectively buffers and counteracts external forces of pulling and squeezing from multiple directions, ensuring unobstructed and stable drainage channels. Simultaneously, the positive pressure drainage device uses a combination of a Venturi tube and a positive pressure bottle to convert stable positive pressure airflow into continuous negative pressure for suction, replacing traditional passive gravity drainage, thus achieving more efficient and stable active drainage. This overall design prevents tube blockage and displacement due to pressure, improves drainage stability and patient comfort, and reduces the risk of complications.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically referring to a pressure-resistant hepatobiliary surgical drainage device. Background Technology

[0002] In hepatobiliary surgery clinical nursing, drainage is an indispensable key technique. Its main function is to drain bile, pus, blood and other fluids from the patient's body, effectively reducing the risk of abdominal infection, creating favorable conditions for tissue repair, and allowing medical staff to monitor changes in the patient's condition by observing the properties of the drainage fluid.

[0003] However, traditional drainage devices widely used in clinical practice currently have many problems that urgently need to be addressed. Among them, blockage due to pressure is one of the most prominent issues. When patients turn over, move around, or experience accidental external pressure, the drainage tube is prone to collapsing, leading to interruption of the drainage channel. This not only causes retention of fluids such as bile in the body, leading to serious complications such as bile fistula and abdominal abscess, but also affects medical staff's judgment of the patient's condition due to inaccurate drainage data, increasing the patient's suffering and treatment costs. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a pressure-resistant hepatobiliary surgical nursing drainage device. To solve the problems of drainage channel interruption and drainage tube displacement and dislodgement caused by pressure in traditional drainage devices, the present invention adopts a combination of anti-compression buffer and positive pressure drainage, and sets up an anti-compression connector and a positive pressure drainage device, thereby achieving the technical effects of preventing drainage tube from being blocked by pressure, preventing displacement and dislodgement, and ensuring stable drainage.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a pressure-resistant hepatobiliary surgical nursing drainage device, including a pressure-resistant connector and a positive pressure drain. The pressure-resistant connector is attached to the patient's affected area. The pressure-resistant connector is connected to the positive pressure drain. The positive pressure drain is installed on the hospital bed. The pressure-resistant connector is responsible for pressure protection at the affected end, and the positive pressure drain is responsible for providing stable drainage power. The two work together to achieve the overall pressure-resistant drainage function.

[0006] Furthermore, the anti-crush docking device includes a crush outer chamber with a sealing ring at the bottom. The sealing ring is adhered to the patient's affected area. A synchronous sleeve shaft is rotatably mounted inside the crush outer chamber, and an inner rotating wheel and an outer rotating wheel are fixedly connected to the synchronous sleeve shaft. A resistance shaft is provided inside the crush outer chamber, and a resistance wheel is rotatably connected to the resistance shaft. The crush outer chamber provides an installation and protective shell for the internal components. The sealing ring achieves a sealed and fixed connection between the crush outer chamber and the patient's affected area. The synchronous sleeve shaft enables synchronous transmission between the inner and outer rotating wheels. The resistance shaft provides rotational support for the resistance wheel. These structures together constitute the basic transmission system of the anti-crush buffer mechanism.

[0007] Furthermore, a resistance rope is wound around the resistance wheel, and the resistance rope is also wound around and connected to the circumferential side wall of the outer rotating wheel. A torsion spring is connected to the resistance shaft, and the torsion spring is fixed to the inner wall of the top of the resistance wheel. The resistance rope realizes the power transmission between the outer rotating wheel and the resistance wheel, and the torsion spring provides elastic restoring force for the resistance wheel. When an external pulling force is applied, the resistance rope drives the resistance wheel to rotate and causes the torsion spring to deform and generate resistance. After the external force disappears, the component is reset by relying on the torsion spring to reset, providing elastic buffer resistance to prevent displacement and disengagement.

[0008] Furthermore, a protective tube is embedded in the circumferential side wall of the inner rotating wheel, and a resistance tube is slidably connected inside the extrusion outer chamber. A buffer spring is provided between the bottom end of the resistance tube and the inner wall of the extrusion outer chamber. A conical silicone sleeve is provided inside the resistance tube, and the protective tube is also embedded in the conical silicone sleeve. The protective tube serves as an intermediate protective structure for the drainage tube, preventing the drainage tube from being directly subjected to external forces. The resistance tube and the buffer spring work together to achieve horizontal external force buffering. The conical silicone sleeve achieves a sealed connection between the protective tube and the resistance tube and provides a certain static friction limit, jointly achieving anti-pressure and anti-displacement protection for the drainage channel.

[0009] Furthermore, the bottom of the compression chamber is provided with a silicone pad, which fits the patient's skin. On the one hand, this enhances the comfort of the compression chamber in contact with the skin and avoids pressure damage to the skin caused by long-term adhesion. On the other hand, it assists the sealing ring in improving the adhesion stability and preventing the compression chamber from shifting.

[0010] Furthermore, the positive pressure drainage device includes a drainage chamber, a Venturi tube, a positive pressure bottle, a drainage bag, and a mixing guide tube. The drainage chamber is placed on the hospital bed. Both the Venturi tube and the positive pressure bottle are located inside the drainage chamber. The positive pressure bottle is connected to the air inlet of the Venturi tube. A negative pressure tube is connected to the throat sidewall of the Venturi tube. One end of the mixing guide tube is connected to the air outlet of the Venturi tube. The drainage bag is suspended outside the drainage chamber. The other end of the mixing guide tube is connected to the drainage bag. The drainage bag is equipped with an air outlet plug. The drainage chamber provides installation and protection space for the internal core components. The positive pressure bottle provides positive pressure to the Venturi tube. The Venturi tube utilizes fluid dynamics principles to convert positive pressure into negative pressure for suction flow. It only requires gas compression to generate negative pressure, overcoming the limitations of traditional electric equipment in power-free scenarios. It is particularly suitable for scenarios such as field rescue and temporary operations. Compared to the high-frequency noise generated by electric vacuum pumps, it relies on fluid flow to generate negative pressure, resulting in quiet and noiseless operation. It is especially suitable for noise-sensitive environments such as wards and precision laboratories. The mixing guide tube delivers drainage fluid to the drainage bag, which is used to collect and store the drainage fluid, together achieving stable drainage power output and drainage fluid collection functions.

[0011] Furthermore, the outlet of the negative pressure tube is connected to the outlet of the protective tube, and the inlet of the protective tube is connected to the drainage tube.

[0012] The beneficial effects of the pressure-resistant hepatobiliary surgical drainage device provided in this solution are as follows:

[0013] (1) Based on the problem that traditional drainage devices are prone to interruption of drainage channels due to pressure, the method of using an anti-squeezing connector with a built-in protective tube is adopted. The protective tube is set as an intermediate structure for the drainage tube, which achieves the technical effect of avoiding direct external pressure on the drainage tube and preventing interruption of the drainage channel. This solves the technical problem of complications caused by bile and other fluid retention due to the flattening of the drainage tube in traditional drainage devices.

[0014] (2) By setting a structure in which a buffer spring and a resistance tube are combined in the outer squeezing chamber, the elastic deformation of the buffer spring is used to buffer the external horizontal pulling or squeezing force, which reduces the force of the drainage tube being pulled by the external force, effectively preventing the drainage tube from shifting or coming out, and improving the safety of the drainage process.

[0015] (3) By using the elastic transmission structure composed of synchronous sleeve shaft, outer rotating wheel, resistance wheel, resistance rope and torsion spring, the lever principle is used to amplify the reset resistance of torsion spring. It can adaptively provide buffer resistance according to the magnitude of external pulling force, further enhance the anti-displacement effect, and can automatically reset after the external force disappears without manual adjustment.

[0016] (4) The positive pressure drainage method using a Venturi tube and a positive pressure bottle is used to generate negative pressure stably by utilizing the principle of fluid mechanics. Compared with traditional gravity drainage, the drainage efficiency is higher and the drainage pressure is more stable, which makes it easier for medical staff to accurately monitor the condition by observing the properties of the drainage fluid.

[0017] (5) A combination structure of sealing ring and silicone pad is set at the bottom of the compression chamber, which not only achieves the sealing and fixation between the compression chamber and the patient's skin, but also improves the comfort of skin contact, avoids skin pressure damage caused by long-term adhesion, and improves the patient's nursing experience.

[0018] (6) The air plug on the drainage bag can release the gas in the bag in time, avoid the high air pressure in the bag from affecting the drainage efficiency, and prevent the drainage fluid from flowing back, further ensuring the stability and reliability of the drainage process.

[0019] (7) The drainage chamber of the positive pressure drainage device provides protection for the internal components, preventing damage to the components due to external collisions. At the same time, the core drainage components are centrally located, which facilitates operation and maintenance by medical staff and improves the convenience of clinical nursing.

[0020] (8) The protective tube buffers the external force of the drainage tube, so that the drainage tube is not affected by external force throughout the process, reducing the traction stimulation of the drainage tube on the patient's affected area, reducing the patient's pain, and avoiding secondary damage caused by the displacement of the drainage tube. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a pressure-resistant hepatobiliary surgical nursing drainage device proposed in this invention;

[0022] Figure 2 A schematic diagram of the anti-extrusion connector;

[0023] Figure 3 A schematic diagram of the anti-extrusion connector;

[0024] Figure 4 This is a diagram showing the connection relationships of the resistance tubes;

[0025] Figure 5 This diagram shows the connection relationship between the inner and outer rotating wheels.

[0026] Figure 6 The force analysis diagrams for the inner and outer rotating wheels are shown.

[0027] Figure 7 The force analysis diagrams for the inner and outer rotating wheels are shown.

[0028] Figure 8 This is a schematic diagram of a positive pressure drainage device.

[0029] Among them, 1. Anti-crush docking device, 2. Positive pressure diverter, 101. Crush outer chamber, 102. Inner rotating wheel, 103. Outer rotating wheel, 104. Resistance wheel, 105. Resistance rope, 106. Resistance tube, 107. Synchronous sleeve shaft, 108. Torsion spring, 109. Conical silicone sleeve, 110. Sealing ring, 111. Protective tube, 112. Silicone pad, 113. Buffer spring, 114. Resistance shaft, 201. Diversion chamber, 202. Venturi tube, 203. Positive pressure bottle, 204. Negative pressure tube, 205. Diversion bag, 206. Mixing guide tube, 207. Air outlet plug.

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0033] like Figures 1-8 As shown, the present invention provides a pressure-resistant hepatobiliary surgical nursing drainage device, including a pressure-resistant connector 1 and a positive pressure drainage device 2. The pressure-resistant connector 1 is attached to the patient's affected area, and the pressure-resistant connector 1 is connected to the positive pressure drainage device 2. The positive pressure drainage device 2 is installed on the hospital bed.

[0034] The anti-crush docking device 1 includes a crush outer chamber 101, with a sealing ring 110 at the bottom. The adhesive surface of the sealing ring 110 is covered with a peelable protective film. A synchronous sleeve shaft 107 is rotatably mounted inside the crush outer chamber 101, and an inner rotating wheel 102 and an outer rotating wheel 103 are fixedly connected to the synchronous sleeve shaft 107. A resistance shaft 114 is provided inside the crush outer chamber 101, and a resistance wheel 104 is rotatably connected to the resistance shaft 114. A resistance rope 105 is wound around the resistance wheel 104, and the resistance rope 105 simultaneously interacts with the outer rotating wheel 103. The circumferential sidewalls are wound and connected, and a torsion spring 108 is connected to the resistance shaft 114. The torsion spring 108 is also fixed to the inner wall of the top of the resistance wheel 104. A protective tube 111 is embedded on the circumferential sidewall of the inner rotating wheel 102. A resistance tube 106 is slidably connected inside the compression outer chamber 101. A buffer spring 113 is provided between the bottom end of the resistance tube 106 and the inner wall of the compression outer chamber 101. A conical silicone sleeve 109 is provided inside the resistance tube 106. The protective tube 111 is also embedded in the conical silicone sleeve 109. A silicone pad 112 is provided at the bottom of the compression outer chamber 101.

[0035] The positive pressure drainage device 2 includes a drainage chamber 201, a venturi tube 202, a positive pressure bottle 203, a drainage bag 205, and a mixing guide tube 206. The drainage chamber 201 is placed on the hospital bed. The venturi tube 202 and the positive pressure bottle 203 are both placed inside the drainage chamber 201. The positive pressure bottle 203 is connected to the air inlet of the venturi tube 202. A negative pressure tube 204 is connected to the throat side wall of the venturi tube 202. One end of the mixing guide tube 206 is connected to the air outlet of the venturi tube 202. The drainage bag 205 is suspended outside the drainage chamber 201. The other end of the mixing guide tube 206 is connected to the drainage bag 205. An air outlet plug 207 is provided on the drainage bag 205. The negative pressure tube 204 is connected to the outlet of the protective tube 111, and the inlet of the protective tube 111 is connected to the drainage tube.

[0036] In practical use, first follow the standard procedures in hepatobiliary surgery: percutaneously puncture the patient's affected area and insert a drainage tube. After suturing and fixing the drainage tube, begin installing the anti-compression connector 1. Connect the inlet of the drainage tube and the protective tube 111, and then connect the outlet of the protective tube 111 to the interface of the negative pressure tube 204. Remove the protective film from the adhesive surface of the sealing ring 110. The compression outer chamber 101 can adhere to the patient's skin through the mucous membrane of the sealing ring 110, completing the adhesion and fixation of the compression outer chamber 101. Drainage begins, and positive pressure is activated. The valve of bottle 203 allows positive pressure airflow to be introduced into the Venturi tube 202. After the airflow enters the Venturi tube 202, the flow velocity will increase significantly in the constriction section (throat). According to Bernoulli's equation, the static pressure will decrease when the flow velocity increases, thus forming a negative pressure zone in the throat. When the positive pressure airflow flows through the Venturi tube, a negative pressure is generated in the throat. The negative pressure tube 204 is connected to the throat position of the Venturi tube 202, and a stable negative pressure is formed in the negative pressure tube 204, the protective tube 111, and the drainage tube, so as to realize the suction flow to the affected area.

[0037] During the drainage phase, the negative pressure tube 204 is subjected to external tension, causing the outlet of the protective tube 111 to be pulled by tension. When the tension is less than the static friction force of the conical silicone sleeve 109 on the protective tube 111, the tension on the protective tube 111 will act on the sealing ring 110. After the deformation of the sealing ring 110 buffers the tension, the sealing ring 110 and the resistance tube 106 slide outward together. The sliding of the resistance tube 106 will squeeze the buffer spring 113. At the same time, the protective tube 111 will pull the inner rotating wheel 102 to rotate. The outer rotating wheel 103 keeps synchronously rotating with the inner rotating wheel 102 through the synchronous sleeve shaft 107. The rotation of the outer rotating wheel 103 is driven by the resistance rope 105. The moving resistance wheel 104 rotates, and the rotation of the resistance wheel 104 compresses the torsion spring 108. When the buffer spring 113 is compressed to its limit, because the tension on the protective tube 111 is less than the static friction force of the conical silicone sleeve 109 on the protective tube 111, the protective tube 111 can no longer be pulled by the tension force, and the protective tube 111 is locked. After the tension disappears, the buffer spring 113 returns to its original extension and pushes the resistance tube 106 to slide back to its original position. The torsion spring 108 resumes to drive the resistance wheel 104 to rotate. The rotation of the resistance wheel 104 drives the outer rotating wheel 103 to rotate through the resistance rope 105. The outer rotating wheel 103 keeps synchronous rotation with the inner rotating wheel 102 through the synchronous sleeve shaft 107 to reset.When the pulling force exceeds the static friction force of the conical silicone sleeve 109 on the protective tube 111, the pulling force on the protective tube 111 acts on the sealing ring 110. The sealing ring 110 and the resistance tube 106 slide outward together. While the resistance tube 106 slides, it squeezes the buffer spring 113. The buffer spring 113 is compressed to its limit. Then, relative sliding occurs between the resistance tube 106 and the sealing ring 110. The resistance tube 106 continues to be pulled by the external force. The protective tube 111 pulls the inner rotating wheel 102 to rotate. The outer rotating wheel 103 rotates through the synchronous sleeve shaft 107. The outer wheel 103 rotates synchronously with the inner wheel 102. The rotation of the outer wheel 103 drives the resistance wheel 104 to rotate via the resistance rope 105. The rotation of the resistance wheel 104 compresses the torsion spring 108. At this time, the inner wheel 102, outer wheel 103, and synchronous sleeve shaft 107 can be considered as a lever. The distance B between the point of tangency between the resistance rope 105 and the outer wheel 103 and the axis of the synchronous sleeve shaft 107 gradually increases, while the distance A between the protective tube 111 and the point of tangency between the inner wheel 102 and the axis of the synchronous sleeve shaft 107 remains constant. When the outer wheel 103 rotates to its maximum angle... At this time, the torsion spring 108 is rotated and twisted to its maximum angle. Due to the lever principle (effort × effort arm = resistance × resistance arm), A is the effort arm (effort torque), B is the resistance arm (resistance torque), the external pulling force is the effort, and the deformation elastic force of the torsion spring 108 is the resistance. At this time, the protective tube 111 will be subjected to resistance equal to a multiple of the deformation elastic force of the torsion spring 108. The direction of the resistance is opposite to the direction of the external pulling force. The resistance provided by the elastic force of the torsion spring 108 is used to overcome the external pulling force. The drainage tube is inside the squeezed outer compartment 101, and the drainage tube is fully... The drainage tube is unaffected by external forces. The protective tube 111 acts as an intermediary structure, buffering the drainage tube from external forces, effectively preventing displacement or dislodgement. The patient will not experience irritation from the pulling of the drainage tube. When the external force disappears, the buffer spring 113 returns to its original length, pushing the resistance tube 106 to slide back to its original position. The torsion spring 108 then returns to its original position, driving the resistance wheel 104 to rotate. The rotation of the resistance wheel 104, through the resistance rope 105, drives the outer rotating wheel 103 to rotate. The outer rotating wheel 103, through the synchronous sleeve shaft 107, maintains synchronized rotation with the inner rotating wheel 102, returning to its original position.

[0038] The above is the specific workflow of this invention. This step can be repeated next time it is used.

[0039] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

[0041] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pressure-resistant hepatobiliary surgical drainage device, characterized in that: The utility model provides an anti-extrusion docking device (1) and a positive pressure drainage device (2), the anti-extrusion docking device (1) is pasted to the patient's affected part, the anti-extrusion docking device (1) is communicated with the positive pressure drainage device (2), and the positive pressure drainage device (2) is installed on the sickbed;The anti-extrusion docking device (1) includes extrusion outer cabin (101), the bottom of extrusion outer cabin (101) is equipped with sealing rubber ring (110), the sealing rubber ring (110) is pasted to the patient's affected part, the synchronous sleeve shaft (107) is rotationally arranged in the extrusion outer cabin (101), the synchronous sleeve shaft (107) is fixedly connected with the inner rotating wheel (102) and the outer rotating wheel (103), the resistance shaft (114) is arranged in the extrusion outer cabin (101), the resistance wheel (104) is rotationally connected to the resistance shaft (114), the circumferential side wall of the inner rotating wheel (102) is embedded with the protection pipe (111), the resistance wheel (104) is woundly connected with the resistance rope (105), the resistance rope (105) is woundly connected with the circumferential side wall of the outer rotating wheel (103) simultaneously, the resistance shaft (114) is connected with the torsion spring (108), the torsion spring (108) is fixedly connected with the inner wall of the top of resistance wheel (104) simultaneously, the inner rotating wheel (102), the outer rotating wheel (103) and the synchronous sleeve shaft (107) can be regarded as a lever as a whole, when rotating synchronously, the distance between the cutting point position of resistance rope (105) and the outer rotating wheel (103) and the axis of synchronous sleeve shaft (107) gradually increases, and the distance between the cutting point position of protection pipe (111) and the inner rotating wheel (102) and the axis of synchronous sleeve shaft (107) remains unchanged, due to the lever principle, the protection pipe (111) will be subjected to the resistance equivalent to the deformation elastic force multiple of torsion spring (108), and the resistance direction is opposite to the external pulling direction.

2. The anti-pressing type liver and gall surgery nursing drainage device according to claim 1, characterized in that: The resistance pipe (106) is slidably connected in the extrusion outer cabin (101), the bottom end of resistance pipe (106) and the inner wall of extrusion outer cabin (101) are provided with buffer spring (113), the resistance pipe (106) is provided with conical silica gel sleeve (109) in the inside, and the protection pipe (111) is embedded in the conical silica gel sleeve (109) simultaneously.

3. The anti-pressing type liver and gall surgery nursing drainage device according to claim 2, characterized in that: The bottom of extrusion outer cabin (101) is provided with silica gel pad (112).

4. The anti-pressing type of liver and gall surgery nursing drainage device according to claim 3, characterized in that: The positive pressure drainage device (2) includes drainage cabin (201), venturi tube (202), positive pressure bottle (203), drainage bag (205) and mixed flow guide pipe (206), the drainage cabin (201) is arranged on the sickbed, the venturi tube (202) and the positive pressure bottle (203) are arranged in the drainage cabin (201), the positive pressure bottle (203) is communicated with the air inlet end of venturi tube (202), the negative pressure pipe (204) is communicated with the side wall of the throat of venturi tube (202), one end of mixed flow guide pipe (206) is communicated with the air outlet end of venturi tube (202), the drainage bag (205) is hung outside the drainage cabin (201), and the other end of mixed flow guide pipe (206) is communicated with the drainage bag (205).

5. The anti-pressing type of hepatobiliary surgery nursing drainage device according to claim 4, characterized in that: The negative pressure tube (204) is communicated with the outlet of the protection tube (111), and the inlet of the protection tube (111) is communicated with the drainage tube.

6. The anti-pressing type of hepatobiliary surgery nursing drainage device according to claim 5, characterized in that: An air outlet plug (207) is arranged on the drainage bag (205).

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