Quick mounting and dismounting mechanism for a casing of an external counterpulsation device

Abstract

The utility model relates to medical instrument technical field discloses a kind of quick assembly and disassembly mechanism of extracorporeal counterpulsation device capsule, including air pipe, gas shunt connecting seat and several capsules, capsule is arranged above counterpulsation bed, every capsule is equipped with one connection male head, the both ends of air pipe are equipped with connection female head, corresponding several second connection male head are provided on gas shunt connecting seat, one connection male head and the connection female head of air pipe one end are connected with joint, second connection male head and the connection female head of air pipe other end are connected with joint.The technical scheme of the utility model can solve the problem of the existing technology that thread connection mode leads to dismounting operation cumbersome, maintenance efficiency is low and long-term use is easy to cause gas leakage due to thread wear.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a quick assembly and disassembly mechanism for an external counterpulsation device sleeve. Background Technology

[0002] External counterpulsation (ECP) devices, as crucial equipment for cardiovascular disease treatment, consist of a core structure comprising a gas supply system, a control system, a monitoring system, a counterpulsation bed, and a cuff assembly. The gas supply system includes a gas shunt connector, a compressor, a gas tank, and tubing. Both ends of the tubing are fitted with female connectors. The cuff is positioned above the counterpulsation bed and equipped with a male connector (number one), which is threaded to the female connector at one end of the tubing. The gas shunt connector is fixed to the bottom of the counterpulsation bed, with several male connectors (number two) near the bed surface. These male connectors are threaded to the female connector at the other end of the tubing. The bottom of the gas shunt connector has several inflation / deflation ports. The compressor is connected to the gas tank via piping. Gas supply pipes from the gas tank correspond to and are connected to the inflation / deflation ports. Each gas supply pipe is equipped with a bidirectional solenoid valve to control gas intake and exhaust. During treatment, the control system precisely controls the inflation / deflation sequence of the cuff based on physiological parameters such as the patient's electrocardiogram (ECG) collected by the monitoring system, thereby ensuring the safety and effectiveness of the treatment.

[0003] However, existing technologies have significant drawbacks. Currently, the cuff to trachea and the trachea to the gas shunt connector both use threaded connections, which have revealed numerous shortcomings in clinical practice. The problems with threaded connections are particularly pronounced when replacing the trachea or cuff. The repeated tightening of the threads during assembly and disassembly makes the process cumbersome and time-consuming, significantly reducing maintenance efficiency. Furthermore, after prolonged use, the threads are prone to wear and loosening, which may lead to gas leakage and affect the normal use and therapeutic efficacy of the external counterpulsation device. Utility Model Content

[0004] The present invention aims to provide a quick assembly and disassembly mechanism for the sleeve of an external counterpulsation device, in order to solve the problems of cumbersome assembly and disassembly operations, low maintenance efficiency, and gas leakage caused by thread wear due to long-term use caused by the threaded connection method in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick assembly and disassembly mechanism for an external counterpulsation device, comprising a trachea, a gas shunt connector, and several sleeves. The sleeves are arranged above the counterpulsation bed, and each sleeve is equipped with a first-order male connector. Both ends of the trachea are equipped with female connectors, and the gas shunt connector is correspondingly provided with several second-order male connectors. The first-order male connector engages with the female connector at one end of the trachea, and the second-order male connector engages with the female connector at the other end of the trachea.

[0006] The beneficial effects of this solution are as follows: This technical solution replaces the traditional threaded connection with a snap-fit ​​connection, allowing for quick and easy connection of the cuff to the trachea and the trachea to the gas shunt connector without the need for tightening. This significantly shortens clinical maintenance time and greatly improves assembly and disassembly efficiency. The snap-fit ​​connection achieves a tight fit through mechanical snap-fit, avoiding the loosening problems caused by long-term wear of threaded connections. The structural design eliminates the risk of gas leakage, effectively ensuring the sealing and stability of the gas supply system, thereby ensuring that the therapeutic effect of the external counterpulsation device is not affected by wear and tear on the connecting components. Furthermore, the operation does not require additional tools, reducing maintenance difficulty and providing convenience for quickly replacing the cuff or inspecting the trachea during clinical treatment, further improving the reliability and safety of the equipment.

[0007] Furthermore, a connecting tube is fixedly connected to the sheath, and the connecting tube communicates with the inner cavity of the sheath. The first male connector includes a first connecting nut and a first insertion tube. The first insertion tube includes a first threaded section and a first insertion section connected in sequence. The outer wall of the first threaded section is provided with external threads. The first threaded section is threadedly connected to the first connecting nut. The connecting tube is fixed on the first threaded section by the first connecting nut. The first insertion section is inserted into the female connector and engages with the female connector.

[0008] The beneficial effects of this solution are as follows: This technical solution, through the separate design of the connecting tube and the No. 1 male connector, achieves rapid connection between the cuff and the No. 1 male connector while ensuring a tight seal. The snap-fit ​​engagement between the No. 1 insertion section and the female connector allows for quick assembly and disassembly. When the cuff needs to be replaced, simply separating the snap-fit ​​section allows for quick disconnection of the trachea and cuff, without needing to remove the entire connection assembly, significantly improving clinical efficiency. Furthermore, the snap-fit ​​engagement simplifies the operation steps while providing stable connection force through mechanical snap-fit, effectively ensuring safety during clinical use.

[0009] Furthermore, the No. 2 male connector includes a fixed section, a positioning section, and a No. 2 threaded section connected in sequence. The No. 2 threaded section is threadedly connected to the gas diversion connector, and the fixed section is inserted into the female connector and engages with it.

[0010] The beneficial effects of this solution are as follows: This technical solution achieves functional zoning optimization of the connection structure through the segmented design of the fixed section, positioning section and No. 2 threaded section. The snap-fit ​​cooperation between the fixed section and the female connector can quickly complete the disassembly and assembly of the gas tube and the gas diversion connector, significantly improving operational efficiency. The threaded connection between the No. 2 threaded section and the gas diversion connector ensures the stability of the male connector on the mounting plate.

[0011] Furthermore, each female connector includes a No. 2 connecting nut, a No. 2 insertion tube, and a sliding sleeve. The No. 2 insertion tube comprises a sliding section, a limiting section, a No. 3 threaded section, and a No. 2 insertion section connected in sequence. The air tube is inserted into the No. 2 insertion section and fixed by threaded connection between the No. 2 connecting nut and the No. 3 threaded section. The sliding section is provided with annular limiting rings and annular positioning platforms at intervals. Several mounting holes are provided circumferentially on the sliding section between the annular limiting rings and the annular positioning platforms. A steel ball is movably disposed in each mounting hole for installation. An elastic element is fitted on the sliding section between the hole and the annular positioning platform. The sliding sleeve is slidably fitted on the sliding section and leaves a gap with the limiting section. The outer wall of the first insertion section is provided with a first annular groove. The first insertion section is inserted into the female connector near the first male connector. When the sliding sleeve slides, it can push the steel ball into the first annular groove. The outer wall of the fixed section is provided with a second annular groove. The fixed section is inserted into the female connector near the second male connector. When the sliding sleeve slides, it can push the steel ball into the second annular groove.

[0012] The beneficial effects of this solution are as follows: The design, which uses a sliding sleeve to push the steel ball into the annular groove, enables a "sliding engagement-sliding unlocking" one-handed operation mode for connecting the endotracheal tube to either the No. 1 or No. 2 male connector. During connection, simply insert the male connector into the female connector and push the sliding sleeve; the steel ball will automatically engage in the annular groove with the assistance of the elastic element. During disassembly, the sliding sleeve compresses the elastic element, disengaging the steel ball from the annular groove. No twisting or additional tools are required, significantly improving clinical assembly and disassembly efficiency, making it particularly suitable for rapid deployment in emergency treatment scenarios.

[0013] The elastic element stores elastic potential energy as the sliding sleeve slides, automatically resetting and maintaining the steel ball's locked state after the sleeve is released, preventing accidental unlocking due to accidental contact or vibration. This "locking-resetting" mechanical self-locking mechanism ensures that the connection remains stable during the periodic pressure changes of the balloon's inflation and deflation, making it more adaptable to dynamic treatment environments and reducing the risk of connection failure compared to traditional threaded connections.

[0014] Furthermore, a receiving groove is provided on the inner side wall of the sliding section, and a sealing ring is fixedly connected inside the receiving groove.

[0015] The beneficial effects of this solution are as follows: Due to the setting of the sealing ring, when the No. 1 or No. 2 male connector is inserted into the groove on the inner side wall of the sliding section, the sealing ring is tightly fitted with the outer side wall of the male connector, forming a physical sealing barrier, effectively blocking the gas leakage path and significantly improving the airtightness of the connection.

[0016] Furthermore, an annular sealing platform is fixedly connected to the outer wall of the second insertion section, and the outer diameter of the annular sealing platform is adapted to the inner diameter of the trachea.

[0017] The beneficial effects of this solution are as follows: The matching design of the outer diameter of the annular sealing platform and the inner diameter of the air pipe in this technical solution forms a tight interference fit when the air pipe is connected, effectively filling the annular gap between the air pipe and the No. 2 insertion section, avoiding lateral leakage of gas during transmission, significantly improving the airtightness of the connection part, and ensuring the pressure stability of the gas supply system. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of a quick-release mechanism for the external counterpulsation device sleeve of this utility model.

[0019] Figure 2 This is a structural schematic diagram of a quick-release mechanism for the capsule of an external counterpulsation device according to the present invention.

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a three-dimensional view of the No. 2 insertion tube of this utility model;

[0022] Figure 5 for Figure 2 A magnified view of a section at point B in the middle;

[0023] Figure 6 This is a three-dimensional view of the No. 2 male connector of this utility model. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method:

[0025] The reference numerals in the accompanying drawings of the instruction manual include: 1. Bag sleeve; 2. Air tube; 3. Gas diversion connector; 4. Connecting female; 5. No. 2 connecting nut; 6. Sliding sleeve; 7. Sliding section; 8. Limiting section; 9. No. 3 threaded section; 10. No. 2 insertion section; 11. Annular limiting ring; 12. Steel ball; 13. Sealing ring; 14. Annular positioning platform; 15. Elastic element; 16. Annular pressing platform; 17. Annular sealing platform; 18. Connecting pipe; 19. No. 1 connecting male; 20. No. 1 connecting nut; 21. No. 1 threaded section; 22. No. 1 insertion section; 23. No. 1 annular groove; 24. Mounting plate; 25. Diverter plate; 26. No. 2 connecting male; 27. Fixing section; 28. Positioning section; 29. ​​No. 2 threaded section; 30. No. 2 annular groove.

[0026] Example

[0027] like Figure 1 The illustrated external counterpulsation device has a quick-release mechanism for the sleeve, which includes a sleeve 1, an endotracheal tube 2, and a gas shunt connector 3.

[0028] like Figure 2-4As shown, both ends of the trachea 2 are equipped with connecting females 4. Each connecting female 4 includes a second connecting nut 5, a second insertion tube, and a sliding sleeve 6. The second insertion tube consists of a sliding section 7, a limiting section 8, a third threaded section 9, and a second insertion section 10, arranged sequentially from top to bottom. The sliding section 7, limiting section 8, third threaded section 9, and second insertion section 10 are integrally formed. An annular limiting ring 11 is glued to the sliding section 7. Four mounting holes are opened along the circumference of the sliding section 7 below the annular limiting ring 11, and a steel ball 12 is movably disposed in each mounting hole. A receiving groove is opened on the inner side wall of the sliding section 7 below the mounting holes, and a sealing ring 13 is glued to the receiving groove. An annular positioning platform 14 is integrally formed on the outer side wall of the sliding section 7 below the sealing ring 13, and an elastic element 15 is sleeved on the sliding section 7 at the top of the annular positioning platform 14. The sliding sleeve 6 is slidably mounted on the sliding section 7 and maintains a distance from the limiting section 8. An annular pressing platform 16 is integrally formed on the inner wall of the sliding sleeve 6, and the limiting section 8 and the annular limiting ring 11 limit both ends of the sliding sleeve 6. An annular sealing platform 17 is integrally formed on the outer wall of the upper end of the second insertion section 10. The outer diameter of the annular sealing platform 17 matches the inner diameter of the air tube 2. When the air tube 2 is inserted into the second insertion section 10, the annular sealing platform 17 abuts against the inner wall of the air tube 2. The outer wall of the third threaded section 9 has external threads, and it is threadedly connected to the third threaded section 9 via the second connecting nut 5, clamping the air tube 2 between the second connecting nut 5 and the annular sealing platform 17. In this embodiment, the elastic element 15 is a compression spring.

[0029] like Figure 2 and Figure 3 As shown, a connecting tube 18 is glued to the bottom of the bladder sleeve 1. The connecting tube 18 is I-shaped and communicates with the inner cavity of the bladder sleeve 1. A first connecting male connector 19 is installed at the lower end of the connecting tube 18. The first connecting male connector 19 includes a first connecting nut 20 and a first insertion tube. The first insertion tube consists of a first threaded section 21 and a first insertion section 22 from top to bottom. The first threaded section 21 and the first insertion section 22 are integrally formed. The outer wall of the first threaded section 21 has external threads and is threadedly connected to the first connecting nut 20. The connecting tube 18 is fixed to the first threaded section 21 by the first connecting nut 20. The outer wall of the first insertion section 22 is smooth and has a first annular groove 23. When the connecting female connector 4 at the upper end of the air tube 2 is connected to the first connecting male connector 19, the steel ball 12 in the connecting female connector 4 can be inserted into the first annular groove 23, and at the same time, the sealing ring 13 abuts against the outer wall of the first insertion section 22 to achieve a seal. During disassembly, slide the sliding sleeve 6 downwards to compress the elastic element 15, release the constraint of the annular pressing platform 16 on the steel ball 12, and then remove the connecting female head 4. After releasing the sliding sleeve 6, the sliding sleeve 6 will reset under the action of the compression spring.

[0030] like Figure 2 , Figure 5 and Figure 6As shown, the gas diversion connector 3 includes a mounting plate 24 and a diversion plate 25. The diversion plate 25 is sealed to the mounting plate 24. Three filling and exhaust ports are provided at the bottom of the diversion plate 25, and these ports are connected to a gas supply device. A two-way solenoid valve is installed on the gas supply device to control the filling and exhaust of gas. Several No. 2 male connectors 26 are installed on the mounting plate 24. Each No. 2 male connector 26 is connected to a corresponding filling and exhaust port at the bottom of the diversion plate 25. From top to bottom, the No. 2 male connector 26 consists of a fixed section 27, a positioning section 28, and a No. 2 threaded section 29. The fixed section 27, positioning section 28, and No. 2 threaded section 29 are integrally formed. The No. 2 threaded section 29 is threaded to the mounting plate 24. A No. 2 annular groove 30 is provided on the outer wall of the fixed section 27. When the female connector 4 at the lower end of the gas pipe 2 is connected to the No. 2 male connector 26, the steel ball 12 inside the female connector is engaged in the No. 2 annular groove 30, and the sealing ring 13 is tightly sealed against the outer wall of the fixed section 27. During disassembly, slide the sliding sleeve 6 upward to compress the compression spring, thereby releasing the constraint of the annular pressing platform 16 on the steel ball 12 and separating the parts. After releasing the sliding sleeve 6, the structure is reset.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A quick-release mechanism for the sleeve of an external counterpulsation device, characterized in that: It includes a trachea, a gas shunt connector, and several cuffs. The cuffs are positioned above the counterpulsation bed. Each cuff is equipped with a No. 1 male connector. Both ends of the trachea are equipped with female connectors. The gas shunt connector is equipped with several No. 2 male connectors. The No. 1 male connector engages with the female connector at one end of the trachea, and the No. 2 male connector engages with the female connector at the other end of the trachea.

2. The quick-release mechanism for the external counterpulsation device sleeve according to claim 1, characterized in that: A connecting tube is fixedly connected to the sheath, and the connecting tube communicates with the inner cavity of the sheath. The first male connector includes a first connecting nut and a first insert tube. The first insert tube includes a first threaded section and a first insert section connected in sequence. The outer wall of the first threaded section is provided with external threads. The first threaded section is threadedly connected to the first connecting nut. The connecting tube is fixed on the first threaded section by the first connecting nut. The first insert section is inserted into the female connector and engages with the female connector.

3. The quick-release mechanism for the external counterpulsation device sleeve according to claim 2, characterized in that: The No. 2 male connector includes a fixed section, a positioning section, and a No. 2 threaded section connected in sequence. The No. 2 threaded section is threadedly connected to the gas splitter connector. The fixed section is inserted into the female connector and engages with it.

4. The quick-release mechanism for the external counterpulsation device sleeve according to claim 3, characterized in that: Each female connector includes a No. 2 connecting nut, a No. 2 insertion tube, and a sliding sleeve. The No. 2 insertion tube comprises a sliding section, a limiting section, a No. 3 threaded section, and a No. 2 insertion section connected in sequence. The air tube is inserted into the No. 2 insertion section and fixed by the No. 2 connecting nut threadedly connecting to the No. 3 threaded section. The sliding section is provided with annular limiting rings and annular positioning platforms at intervals. Several mounting holes are provided circumferentially on the sliding section between the annular limiting rings and the annular positioning platforms. A steel ball is movably disposed in each mounting hole. An elastic element is fitted on the sliding section between the annular positioning platforms. The sliding sleeve is slidably fitted on the sliding section and leaves a gap with the limiting section. The outer wall of the first insertion section is provided with a first annular groove. The first insertion section is inserted into the female connector near the first male connector. When the sliding sleeve slides, it can push the steel ball into the first annular groove. The outer wall of the fixed section is provided with a second annular groove. The fixed section is inserted into the female connector near the second male connector. When the sliding sleeve slides, it can push the steel ball into the second annular groove.

5. The quick-release mechanism for the external counterpulsation device sleeve according to claim 4, characterized in that: The inner wall of the sliding section is provided with a receiving groove, and a sealing ring is fixedly connected in the receiving groove.

6. The quick-release mechanism for the external counterpulsation device sleeve according to claim 5, characterized in that: An annular sealing platform is fixedly connected to the outer wall of the second insertion section, and the outer diameter of the annular sealing platform is adapted to the inner diameter of the trachea.

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