Leading-out device for liquid driving of wound drainage tube

Abstract

The utility model discloses a liquid-driven extraction device for a wound drainage tube, which comprises a peristaltic pump and a storage bag, and the storage bag is provided with a shoulder strap. The peristaltic pump is arranged on the shoulder strap and comprises a driving shell and a pump head shell, the pump head shell is provided with a movable cavity, a rotating shaft is arranged in the movable cavity, rollers are arranged on the periphery of the rotating shaft, and the rotating shaft is driven by a motor to rotate. An inlet and an outlet are formed in the side face of the pump head shell, the drainage tube can be clamped and fixed between the side wall of the movable cavity and the roller, the two ends of the drainage tube extend out of the inlet and the outlet respectively, and the end, extending out of the outlet, of the drainage tube is connected to the drainage ball. When the patient gets out of the bed and walks, the patient does not need to hold the drainage ball with hands, traction is not prone to being caused, and the risk of tube disengaging is reduced; blood in the drainage tube is promoted to be conveyed into the drainage ball through the peristaltic pump, the drainage tube is kept unobstructed, and tube blockage caused by coagulation due to the fact that the blood in the drainage tube is not extracted in time is prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a liquid-driven extraction device for wound drainage tubes. Background Technology

[0002] For orthopedic patients, wound drainage requires the placement of a negative pressure drainage tube with a drainage ball. The purpose of wound drainage is to drain accumulated fluid, pus, or blood from the local area or body cavity, thereby preventing and treating infection; ensuring good healing of the suture site; and reducing the occurrence of complications.

[0003] The indwelling drainage tube is left in place for a relatively long time, which greatly inconveniences the patient's activities and also seriously affects their appearance and damages their self-esteem.

[0004] Currently, when patients get out of bed and walk, medical staff use the "bandage carrying" method. However, after repeated practice, the following drawbacks have been identified:

[0005] The drainage ball is suspended in the air, and it sways from side to side when the patient walks, increasing the risk of dislodgement.

[0006] The patient needs to carry the drainage ball by hand, which restricts the patient's movement;

[0007] The drainage tube is prone to being pulled, which can lead to it coming out.

[0008] The "bandage carrying method" may also cause the drainage ball to be higher than the level of the surgical incision, resulting in backflow of drainage fluid and infection.

[0009] In addition, since the drainage tube mainly carries blood, if the blood is not drawn into the drainage bulb in time, it may coagulate inside the drainage tube, causing blockage.

[0010] Therefore, how to design an extraction device to keep the drainage tube unobstructed during wound drainage has become an urgent problem to be solved in the field of medical device technology. Utility Model Content

[0011] The purpose of this invention is to provide a liquid-driven drainage device for wound drainage tubes, which eliminates the need for patients to carry the drainage ball when getting out of bed, and reduces the risk of traction and tube dislodgement. The peristaltic pump promotes the delivery of blood from the drainage tube to the drainage ball, keeping the drainage tube unobstructed and preventing blood from clotting and causing blockage if not drained in time.

[0012] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0013] A fluid-driven drainage device for wound drainage tubes includes a peristaltic pump and a storage bag. The storage bag is used to store an existing drainage bulb. The storage bag has a shoulder strap for the patient to wear diagonally on their back. The two ends of the shoulder strap are fixed to the sides of the bag opening. The shoulder strap is diagonally wrapped over the patient's shoulder, and the storage bag hangs on the patient's thigh. The peristaltic pump, mounted on the shoulder strap, maintains the patency of the existing drainage tube. The peristaltic pump includes a drive housing and a pump head housing. The pump head housing is located on the front of the drive housing and has a movable cavity with an opening on the front. A rotating shaft is located within the movable cavity, and rollers are located around the outer periphery of the rotating shaft. The rotating shaft is driven to rotate by a motor. The pump head housing has an inlet and an outlet on its side. The drainage tube can be clamped between the side wall of the movable chamber and the roller. The two ends of the drainage tube extend from the inlet and the outlet respectively. The end of the drainage tube extending from the outlet is connected to the drainage ball. When the shaft rotates, it drives the roller to move circumferentially and squeezes the drainage tube, so that the liquid in the drainage tube flows from the inlet to the outlet.

[0014] Compared with existing technologies, the liquid-driven extraction device for wound drainage tubes that adopts the above technical solution has the following advantages:

[0015] The present invention provides a liquid-driven drainage device for wound drainage tubes. The storage bag and shoulder strap can be similar to existing shoulder bags. Patients wear the shoulder strap and put the drainage ball into the storage bag. When getting out of bed, they do not need to carry the drainage ball by hand, and it is less likely to cause traction, reducing the risk of tube dislodgement.

[0016] The peristaltic pump can refer to the existing Camer peristaltic pump (manufacturer: Camer Fluid Technology (Shanghai) Co., Ltd.). The peristaltic pump promotes the delivery of blood in the drainage tube to the drainage bulb, keeps the drainage tube unobstructed, and prevents the blood in the drainage tube from clotting and causing blockage due to failure to be withdrawn in time.

[0017] Preferably, the peristaltic pump is detachably connected to the shoulder strap. If the peristaltic pump is damaged, it can be replaced on the shoulder strap; if the storage bag is not used, the peristaltic pump can also be removed and used separately.

[0018] Preferably, the drive housing has a buckle on the back, which fits over the shoulder strap, allowing the peristaltic pump to move along the length of the shoulder strap. The shoulder strap and buckle are secured with Velcro. The peristaltic pump can be fixed to different positions on the shoulder strap as needed, and it is less likely to be accidentally lost.

[0019] Preferably, the inner circumferential surface of the movable cavity is provided with a U-shaped tube placement groove, which surrounds the outer circumference of the rotating shaft, with the two ends of the tube placement groove respectively located at the inlet and outlet. A drainage tube can be placed inside the tube placement groove. The wall of the tube placement groove is in close contact with the wall of the drainage tube, and the tube placement groove plays a positioning role for the drainage tube, preventing the drainage tube from loosening or bending inside the movable cavity.

[0020] Preferably, the opening of the movable chamber is covered with a sealing cap, which is transparent. After the sealing cap is closed, it prevents the drainage tube from accidentally detaching from the movable chamber and allows observation of the rotation of the shaft inside the movable chamber, ensuring the normal operation of the peristaltic pump.

[0021] Preferably, the sealing cap has inserts on both sides of the sealing surface and slots on both sides of the movable cavity opening. The two inserts are respectively engaged in the two slots, and the sealing cap and the movable cavity opening are magnetically connected by magnets. After the sealing cap is closed, the slots position the inserts, and the magnets further secure the sealing cap to the pump head housing, preventing the sealing cap from accidentally falling off.

[0022] Preferably, a frequency converter is installed inside the drive housing, and a speed control knob is provided on the front of the drive housing. The frequency converter is electrically connected to the rotating shaft. The speed control knob can refer to the corresponding structure of existing Camer peristaltic pumps. By controlling the rotation speed of the rotating shaft through the speed control knob, the flow rate of liquid in the drainage tube can be adjusted as needed. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the peristaltic pump in Example 1.

[0024] Figure 2 This is a schematic diagram of the pump head housing when the sealing cap is closed in Example 1.

[0025] Figure 3 This is a front view of the peristaltic pump when the shaft rotates in Example 1.

[0026] Figure 4 This is a schematic diagram of the structure on the back of the peristaltic pump in Example 1.

[0027] Figure 5 This is a schematic diagram of the use of the lead-out device in Example 1.

[0028] Figure 6 This is a schematic diagram of the lead-out device in Example 2.

[0029] Reference numerals: 1. Storage bag; 11. Shoulder strap; 12. Buckle; 2. Peristaltic pump; 21. Drive housing; 22. Pump head housing; 23. Movable chamber; 24. Rotary shaft; 25. Roller; 26. Tube placement groove; 27. Inlet; 28. Outlet; 29. ​​Slot; 3. Sealing cap; 31. Insert block; 32. Magnet; 4. Speed ​​control knob; 5. Drainage tube; 51. Drainage ball. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0031] Example 1

[0032] like Figures 1 to 5 The drainage device shown for a fluid-driven wound drainage tube includes a peristaltic pump 2 and a storage bag 1. The storage bag 1 is used to store an existing drainage ball 51. The storage bag 1 has a shoulder strap 11 for the patient to wear diagonally. The storage bag 1 and shoulder strap 11 can be referenced from existing crossbody bags. The two ends of the shoulder strap 11 are respectively fixed to the two sides of the opening of the storage bag 1. The shoulder strap 11 is diagonally wrapped over the patient's shoulder, and the storage bag 1 is suspended on the side of the patient's thigh. The peristaltic pump 2 is used to keep the existing drainage tube 5 unobstructed. The peristaltic pump 2 is mounted on the shoulder strap 11. The peristaltic pump 2 includes a drive housing 21 and a pump head housing 22. The pump head housing 22 is located on the front of the drive housing 21. The pump head housing 22 has a movable cavity 23. The opening of the movable cavity 23 is located on the front of the pump head housing 22. A rotating shaft 24 is provided inside the movable cavity 23. Three rollers 25 are arranged in a circumferential array on the outer periphery of the rotating shaft 24. The rotating shaft 24 is driven by a motor to rotate. The pump head housing 22 has an inlet 27 and an outlet 28 on the same side. The drainage tube 5 can be clamped between the side wall of the movable cavity 23 and the roller 25, and the two ends of the drainage tube 5 extend from the inlet 27 and the outlet 28 respectively. The end of the drainage tube 5 extending from the outlet 28 is connected to the drainage ball 51. When the rotating shaft 24 rotates, it drives the roller 25 to move circumferentially and squeezes the drainage tube 5, so that the liquid in the drainage tube 5 flows from the inlet 27 to the outlet 28. The peristaltic pump 2 can refer to the existing Camer peristaltic pump (manufacturer: Camer Fluid Technology (Shanghai) Co., Ltd.). The peristaltic pump 2 promotes the delivery of blood in the drainage tube 5 to the drainage ball 51, keeps the drainage tube 5 unobstructed, and prevents the blood in the drainage tube 5 from not being withdrawn in time, which may cause coagulation and blockage.

[0033] During ambulation, the patient wears a shoulder strap 11 to hold onto the storage bag 1, which is positioned on the side of the patient's thigh. This ensures that the drainage bulb 51 inside the storage bag is below the level of the surgical incision, preventing reflux of drainage fluid and potential infection. Because the drainage bulb 51 is stored inside the storage bag 1, the patient does not need to carry it by hand, thus not restricting their movement. Furthermore, it reduces the risk of the drainage tube being pulled out, minimizing the risk of dislodgement.

[0034] Reference Figure 4 and Figure 5 The peristaltic pump 2 is detachably connected to the shoulder strap 11, and the back of the drive housing 21 is fixed to the surface of the shoulder strap 11 with Velcro. If the peristaltic pump 2 is damaged, the peristaltic pump 2 on the shoulder strap 11 can be replaced; if the storage bag 1 is not used, the peristaltic pump 2 can also be removed and used separately.

[0035] Reference Figure 3The inner circumferential surface of the movable cavity 23 is provided with a U-shaped tube placement groove 26, which surrounds the outer circumference of the rotating shaft 24. The two ends of the tube placement groove 26 are respectively located at the inlet 27 and the outlet 28. The drainage tube 5 can be fastened in the tube placement groove 26. The wall of the tube placement groove 26 is in close contact with the wall of the drainage tube 5, and the tube placement groove 26 plays a positioning role for the drainage tube 5, preventing the drainage tube 5 from loosening or bending in the movable cavity 23.

[0036] Reference Figure 2 The opening of the active chamber 23 is covered with a sealing cap 3, which is transparent. After the sealing cap 3 is closed, it prevents the drainage tube 5 from accidentally detaching from the active chamber 23, and allows observation of the rotation of the rotating shaft 24 inside the active chamber 23, ensuring the normal operation of the peristaltic pump 2.

[0037] The sealing cover 3 has two insert blocks 31 on each side of its closing surface, and two slots 29 on each side of the opening of the movable cavity 23. The two insert blocks 31 are respectively engaged in the two slots 29. The sealing cover 3 and the opening of the movable cavity 23 are magnetically connected by a magnet 32. After the sealing cover 3 is closed, the slots 29 position the insert blocks 31, and the magnets 32 increase the fixation between the sealing cover 3 and the pump head housing 22, preventing the sealing cover 3 from accidentally falling off.

[0038] Reference Figure 1 and Figure 3 The drive housing 21 contains a frequency converter, and the frequency converter has a speed control knob 4 on the front of the drive housing 21. The frequency converter is electrically connected to the rotating shaft 24. The speed control knob 4 can refer to the corresponding structure of the existing Camer peristaltic pump. The speed of the rotating shaft 24 can be controlled by the speed control knob 4, and the flow rate of the liquid in the drainage tube 5 can be adjusted as needed.

[0039] Example 2

[0040] like Figure 6 The fluid-driven drainage device for wound drainage tubes shown in this embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that:

[0041] The drive housing 21 has a buckle 12 on the back, which is fitted over the shoulder strap 11. The peristaltic pump 2 can move along the length of the shoulder strap 11. The shoulder strap 11 and the buckle 12 are fixed together by Velcro. The peristaltic pump 2 can be fixed at different positions on the shoulder strap 11 as needed, and the peristaltic pump 2 is not easy to lose accidentally.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A liquid-driven extraction device for wound drainage tubes, characterized in that: Includes a peristaltic pump (2) for keeping the existing drainage tube (5) unobstructed and a storage bag (1) for storing the existing drainage ball (51). The storage bag (1) is provided with a shoulder strap (11) for the patient to wear diagonally on the back of the storage bag (1). The two ends of the shoulder strap (11) are respectively fixed to the two sides of the opening of the storage bag (1). The shoulder strap (11) is diagonally wrapped over the patient's shoulder and the storage bag (1) is suspended on the side of the patient's thigh. The peristaltic pump (2) is mounted on the shoulder strap (11). The peristaltic pump (2) includes a drive housing (21) and a pump head housing (22). The pump head housing (22) is located on the front of the drive housing (21). The pump head housing (22) has a movable cavity (23). The opening of the movable cavity (23) is located on the front of the pump head housing (22). A rotating shaft (24) is provided inside the movable cavity (23). Rollers (25) are provided on the outer periphery of the rotating shaft (24). The rotating shaft (24) is driven to rotate by a motor. The pump head housing (22) has an inlet (27) and an outlet (28) on its side. The drainage tube (5) can be clamped between the side wall of the movable chamber (23) and the roller (25). The two ends of the drainage tube (5) extend from the inlet (27) and the outlet (28) respectively. The end of the drainage tube (5) extending from the outlet (28) is connected to the drainage ball (51). When the rotating shaft (24) rotates, it drives the roller (25) to move circumferentially and squeezes the drainage tube (5), so that the liquid in the drainage tube (5) flows from the inlet (27) to the outlet (28).

2. The liquid-driven extraction device for wound drainage tubes according to claim 1, characterized in that: The peristaltic pump (2) is detachably connected to the shoulder strap (11).

3. The liquid-driven extraction device for wound drainage tubes according to claim 1, characterized in that: The drive housing (21) has a buckle (12) on the back. The buckle (12) is fitted over the shoulder strap (11). The peristaltic pump (2) can move along the length of the shoulder strap (11). The shoulder strap (11) and the buckle (12) are fixed together by Velcro.

4. The liquid-driven extraction device for wound drainage tubes according to claim 1, characterized in that: The inner circumferential surface of the active cavity (23) is provided with a U-shaped tube placement groove (26). The tube placement groove (26) surrounds the outer circumference of the rotating shaft (24), and the two ends of the tube placement groove (26) are respectively located at the inlet (27) and the outlet (28). A drainage tube (5) can be placed inside the tube placement groove (26).

5. The liquid-driven extraction device for wound drainage tubes according to claim 1, characterized in that: The opening of the active cavity (23) is covered with a sealing cap (3), which is transparent.

6. The liquid-driven extraction device for wound drainage tubes according to claim 5, characterized in that: The sealing cap (3) has inserts (31) on both sides of the sealing surface, and slots (29) are provided on both sides of the opening of the movable cavity (23). The two inserts (31) are respectively engaged in the two slots (29), and the sealing cap (3) and the opening of the movable cavity (23) are magnetically connected by magnets (32).

7. A liquid driven extraction device for a wound drain according to claim 1, characterized in that: The drive housing (21) is equipped with a frequency converter. The frequency converter has a speed control knob (4) on the front of the drive housing (21) for controlling the rotation speed of the shaft (24). The frequency converter is electrically connected to the shaft (24).

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