Chest drainage bottle

Abstract

The utility model relates to the field of medical liquid containers, in particular to a chest drainage bottle which comprises a bottle body and a bottle cap, the bottle cap is communicated with a conveying pipe, the end, away from the bottle cap, of the conveying pipe is communicated with a connector, the connector comprises a pipe body, a clamping sleeve is arranged on the outer wall of the pipe body, and the clamping sleeve is connected with the conveying pipe. A connecting part is arranged between the clamping sleeve and the pipe body, a gap exists between the clamping sleeve and the pipe body, first clamping teeth are arranged on the inner wall of the clamping sleeve, second clamping teeth are arranged on the outer wall of the pipe body, and the first clamping teeth and the second clamping teeth are arranged in a staggered mode. The gap between the first clamping tooth and the second clamping tooth is smaller than the wall thickness of the conveying pipe. The connecting structure has the effect of improving the connecting stability of the conveying pipe and the connector.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical liquid container especially to a chest drainage bottle. BACKGROUND

[0002] The chest drainage bottle is used in the closed drainage of the chest cavity to collect the liquid drained from the chest cavity. It is usually a plastic bottle body, and a delivery pipe and multiple other pipes are connected to the top end of the bottle body for communication with the pipeline in the chest cavity. The delivery pipe is connected to the pipeline in the chest cavity through a joint to drain the liquid in the chest cavity into the bottle body.

[0003] However, during use, the delivery pipe and the pipeline in the chest cavity are both connected through a joint. Since the joint is generally around the patient's body, the delivery pipe will become soft under the heating of the body temperature, and the connection stability between the delivery pipe and the joint will decrease, resulting in loosening of the connection between the delivery pipe and the joint, and sometimes even loosening of the delivery pipe and the joint. A rope or the like is needed to reinforce the connection between the joint and the delivery pipe to alleviate the loosening of the connection between the delivery pipe and the joint. SUMMARY

[0004] To solve the problem of loosening of the connection between the joint and the pipeline, which leads to loosening of the joint and the pipeline, the utility model provides a chest drainage bottle.

[0005] The utility model provides a chest drainage bottle, adopts the following technical scheme:

[0006] A chest drainage bottle comprises a bottle body and a bottle cap, a delivery pipe is connected to the bottle cap, a joint is connected to the end of the delivery pipe away from the bottle cap, the joint comprises a pipe body, a clamping sleeve is arranged on the outer wall of the pipe body, a connecting part is arranged between the clamping sleeve and the pipe body, a gap exists between the clamping sleeve and the pipe body, first clamping teeth are arranged on the inner wall of the clamping sleeve, second clamping teeth are arranged on the outer wall of the pipe body, the first clamping teeth and the second clamping teeth are staggered, and the gap between the first clamping teeth and the second clamping teeth is smaller than the wall thickness of the delivery pipe.

[0007] In a specific implementation, a clamping groove is formed in the side wall of the connecting part, a guide groove is arranged in the side wall of the connecting part and communicates with the clamping groove, and the width of the guide groove gradually decreases towards the clamping groove.

[0008] In a specific implementation, the width of the clamping groove is smaller than the wall thickness of the delivery pipe.

[0009] In an embodiment, the sliding block is provided with a sealing block at one end away from the conveying pipe, and a gap is formed between the sealing block and the inner wall of the pipe body, and a connecting hole is formed in the sealing block, and an installation cavity is formed in the sliding block and communicated with the connecting hole, and a check element is arranged in the installation cavity, and a stop ring is arranged on the inner wall of the pipe body and has an inner diameter smaller than an outer diameter of the sealing block.

[0010] In an embodiment, a fixing block is arranged on the side wall of the sliding block, and a sliding groove is formed in the inner wall of the pipe body and used for sliding of the fixing block, and the sliding groove extends along the liquid conveying direction.

[0011] In an embodiment, the check element is a check ring, and an inner diameter of the check ring gradually decreases away from the sealing block.

[0012] In an embodiment, the pipe body is provided with a guide section at each end.

[0013] In an embodiment, the guide section is provided with a connecting ring at one end away from the pipe body.

[0014] In an embodiment, the connector is a plastic part.

[0015] In summary, the utility model has at least one of the following beneficial technical effects:

[0016] 1. The first clamping tooth and the second clamping tooth are arranged so that when the conveying pipe is inserted into the gap between the pipe body and the clamping sleeve, the conveying pipe is bent and deformed under the clamping action of the first clamping tooth and the second clamping tooth, the conveying pipe is not easy to be loosened from the gap between the pipe body and the clamping sleeve, and the stability of the connection between the conveying pipe and the connector is improved.

[0017] 2. The check ring can block the backflow of the liquid discharged from the thoracic cavity, so that the liquid discharged from the thoracic cavity can only be conveyed into the bottle body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of an overall structure.

[0019] Figure 2 is a sectional view showing an internal structure of the connector.

[0020] Figure 3 is a sectional view of the connector.

[0021] Explanation of reference numerals in the attached drawings: 1. Bottle body; 2. Bottle cap; 3. First conveying pipe; 4. Second conveying pipe; 5. Connector; 51. Pipe body; 52. Clamping sleeve; 53. Connecting part; 6. First clamping tooth; 7. Second clamping tooth; 8. Guide groove; 9. Slot; 10. Guide section; 11. Connecting ring; 12. Sliding block; 13. Sealing block; 14. Connecting hole; 15. Retaining ring; 16. Check ring; 17. Fixing block; 18. Slide groove. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-3 The present invention will be described in further detail below.

[0023] Reference Figure 1 and Figure 2 The pleural infusion bottle includes a bottle body 1 and a cap 2. A delivery tube is connected to the cap 2, and a connector 5 is connected to the end of the delivery tube away from the cap 2. A delivery tube connecting to the pleural cavity is connected to the connector 5. For ease of distinction and description, the tube connected to the cap 2 is designated as the first delivery tube 3, and the tube connecting to the pleural cavity as the second delivery tube 4. Both the first and second delivery tubes 3 and 4 are made of the same type of plastic tubing. The first and second delivery tubes 3 are connected via the connector 5, allowing fluid from the pleural cavity to enter the bottle body 1 through the second delivery tube 4 and the first delivery tube 3.

[0024] Reference Figure 2 and Figure 3The connector 5 includes a tube body 51, with a connecting portion 53 fixed to the outer wall of the tube body 51. A clamping sleeve 52 is fixed to the connecting portion 53. The tube body 51 and the clamping sleeve 52 are connected through the connecting portion 53. The connecting portion 53 creates a gap between the tube body 51 and the clamping sleeve 52 for the insertion of the first conveying tube 3 and the second conveying tube 4. A first clamping tooth 6 is fixed to the inner wall of the clamping sleeve 52, and a second clamping tooth 7 is fixed to the outer wall of the tube body 51. The first clamping tooth 6 and the second clamping tooth 7 are staggered. The first clamping tooth 6 is arranged in one row, and the second clamping tooth 7 is arranged in two rows. The gap between the first clamping tooth 6 and the second clamping tooth 7 is less than the wall thickness of the first conveying tube 3, that is, the distance between the tip of the first clamping tooth 6 and the tip of the second clamping tooth 7 is less than the wall thickness of the first conveying tube 3. When the first delivery pipe 3 is inserted into the gap between the clamping sleeve 52 and the pipe body 51, the wall of the first delivery pipe 3 bends and deforms under the action of the first clamping tooth 6 and the second clamping tooth 7, and the cross-section of the wall of the first delivery pipe 3 tends to form the letter "M". By changing the travel path of the wall of the first delivery pipe 3 in the gap between the clamping sleeve 52 and the pipe body 51, instead of the traditional straight travel path, the direction of the force required for the first delivery pipe 3 to detach from the pipe body 51 is changed, and the pulling force required for the first delivery pipe 3 to detach from the pipe body 51 is increased, making it difficult for the first delivery pipe 3 to detach from the pipe body 51. The second delivery pipe 4 differs from the first delivery pipe 3 only in the connection position. Therefore, when inserted into the gap between the clamping sleeve 52 and the pipe body 51, the same principle applies as with the first delivery pipe 3. The first delivery pipe 3 will be used as an example in the following text, and the second delivery pipe 4 will not be described in detail. The connection stability between the first delivery pipe 3 and the second delivery pipe 4 and the connector 5 is significantly improved. The connector 5 is made of plastic, which facilitates its production and reduces its production cost.

[0025] Reference Figure 2 and Figure 3 A guide groove 8 is formed on the side wall of the connecting part 53 facing the first conveying pipe 3 and the second conveying pipe 4. A retaining groove 9 is formed on the inner wall of the guide groove 8. The width of the retaining groove 9 is smaller than that of the guide groove 4. The inner wall of the guide groove 8 is inclined, so that the width of the guide groove 8 gradually decreases towards the retaining groove 9, and finally becomes the same as the width of the retaining groove 9. After the first conveying pipe 3 passes through the first retaining tooth and the second retaining tooth, it continues to move towards the connecting part 53. The opening of the first conveying pipe 3 is close to the inclined inner wall of the guide groove 8 and slides along the inner wall of the guide groove 8, and finally gets stuck in the retaining groove 9. The locking action of the retaining groove 9 improves the connection stability between the connecting part 53 and the first conveying pipe 3, and further improves the connection stability between the first conveying pipe 3 and the connector 5.

[0026] Reference Figure 2 and Figure 3The width of the slot 9 is slightly smaller than the wall thickness of the first conveying pipe 3, so that the slot 9 and the first conveying pipe 3 form an interference fit. The first conveying pipe 3 can be inserted into the slot 9 by its own elasticity, which further improves the connection stability between the first conveying pipe 3 and the connecting part 53.

[0027] Reference Figure 2 and Figure 3 Guide sections 10 are fixed at both ends of the tube body 51. The outer diameter of the guide sections 10 gradually decreases in the direction away from the tube body 51, so that the outer diameter of the guide sections 10 is smaller than the inner diameter of the first conveying tube 3, which facilitates the quick installation of the first conveying tube 3 onto the tube body 51. A connecting ring 11 is fixed at the end of the guide section 10 away from the tube body 51. After the first conveying tube 3 is installed on the tube body 51, the edge of the connecting ring 11 fits against the inner wall of the first conveying tube 3, sealing the gap between the first conveying tube 3 and the guide section 10.

[0028] Reference Figure 2 and Figure 3 The tube body 51 is equipped with a sliding block 12, and a sealing block 13 is fixed on the side wall of the sliding block 12. There is a gap between the sealing block 13 and the inner wall of the tube body 51. The sealing block 13 has multiple connecting holes 14, and the sliding block 12 has an installation cavity that communicates with all of the multiple connecting holes 14. A retaining ring 15 is fixed on the inner wall of the tube body 51, and the inner diameter of the retaining ring 15 is smaller than the outer diameter of the sealing block 13.

[0029] Under normal conditions, there is a gap between the sealing block 13 and the retaining ring 15. Liquid discharged from the chest cavity enters the tube body 51 through the second delivery pipe 4, passes through the retaining ring 15, and enters the mounting cavity of the sliding block 12 through the connecting hole 14 on the side wall of the sealing block 13. It then exits from the mounting cavity into the first delivery pipe 3 and finally enters the bottle body 1. When it is necessary to prevent liquid backflow, the sealing block 13 moves towards the retaining ring 15, and the edges of the sealing block 13 and the retaining ring 15 fit together, sealing the retaining ring 15. Liquid cannot flow through the connecting hole 14 to the other side of the retaining ring 15, thus preventing liquid backflow.

[0030] Reference Figure 2 and Figure 3 Multiple fixing blocks 17 are fixed on the side wall of the sliding block 12. A sliding groove 18 is provided on the inner wall of the pipe body 51 for the fixing blocks 17 to slide. The sliding groove 18 extends along the liquid conveying direction, so that when the fixing blocks 17 slide in the sliding groove 18, the sliding block 12 drives the sealing block 13 to move closer to or away from the retaining ring 15.

[0031] Reference Figure 2 and Figure 3A check valve is fixed to the inner wall of the sliding block 12. Specifically, the check valve is a conical check ring 16, the inner radial direction of which gradually decreases away from the sealing block 13. When liquid backflow occurs, the liquid first enters the gap between the check ring 16 and the inner wall of the sliding block 12. Through the thrust of the liquid on the check ring 16, the sliding block 12 is pushed, causing the sealing block 13 to move towards the retaining ring 15, thereby sealing the retaining ring 15 and preventing liquid backflow. When it is necessary to drain the liquid, the liquid pushes the sealing block 13 away from the retaining ring 15, causing the retaining ring 15 to open, and the liquid passes through the check ring 16 and is transported to the first delivery pipe 3.

[0032] The implementation principle of this utility model embodiment is as follows: the first delivery pipe 3 and the second delivery pipe 4 are inserted into the gap between the clamping sleeve 52 and the pipe body 51, and the first delivery pipe 3 and the second delivery pipe 4 are engaged in the slot 9, completing the connection between the first delivery pipe 3 and the second delivery pipe 4 and the connector 5. The fluid discharged from the pleural cavity pushes the sealing block 13 away from the retaining ring 15, allowing the fluid to pass through the check ring 16 and enter the first delivery pipe 3, flowing into the bottle body 1. Due to the patient lying down, excessive breathing, etc., the hydraulic pressure in the first delivery pipe 3 increases, and when backflow occurs, the backflowing fluid is blocked by the check ring 16, and pushes the sliding block 12 to move the sealing block 13 closer to the retaining ring 15, so that the sealing block 13 seals the retaining ring 15, preventing the fluid from flowing back into the patient's pleural cavity.

[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A chest-lift bottle, comprising a bottle body (1) and a bottle cap (2), wherein a conveying pipe is connected to the bottle cap (2), and a connector (5) is connected to one end of the conveying pipe away from the bottle cap (2), characterized in that: The connector (5) includes a tube body (51), a clamping sleeve (52) is provided on the outer wall of the tube body (51), a connecting part (53) is provided between the clamping sleeve (52) and the tube body (51), there is a gap between the clamping sleeve (52) and the tube body (51), a first clamping tooth (6) is provided on the inner wall of the clamping sleeve (52), a second clamping tooth (7) is provided on the outer wall of the tube body (51), the first clamping tooth (6) and the second clamping tooth (7) are arranged alternately, and the gap between the first clamping tooth (6) and the second clamping tooth (7) is less than the wall thickness of the conveying pipe.

2. The chest inlet bottle according to claim 1, characterized in that: The connecting part (53) has a slot (9) on its side wall and a guide groove (8) communicating with the slot (9) on its side wall. The width of the guide groove (8) gradually decreases towards the slot (9).

3. The chest inlet bottle according to claim 2, characterized in that: The width of the slot (9) is less than the wall thickness of the delivery pipe.

4. The chest inlet bottle according to claim 1, characterized in that: The tube body (51) is provided with a sliding block (12), and a sealing block (13) is provided at the end of the sliding block (12) facing away from the conveying pipe. There is a gap between the sealing block (13) and the inner wall of the tube body (51). A connecting hole (14) is provided on the sealing block (13). An installation cavity communicating with the connecting hole (14) is provided on the sliding block (12). A check valve is provided in the installation cavity. A retaining ring (15) is provided on the inner wall of the tube body (51). The inner diameter of the retaining ring (15) is smaller than the outer diameter of the sealing block (13).

5. The chest inlet bottle according to claim 4, characterized in that: The sliding block (12) has a fixed block (17) on its side wall, and the inner wall of the tube (51) has a sliding groove (18) for the fixed block (17) to slide, and the sliding groove (18) extends along the liquid conveying direction.

6. The chest inlet bottle according to claim 4, characterized in that: The check ring is a check ring (16), and the inner radial direction of the check ring (16) gradually decreases away from the sealing block (13).

7. The chest inlet bottle according to claim 1, characterized in that: Both ends of the tube (51) are provided with guide sections (10).

8. The chest-lift bottle according to claim 7, characterized in that: The guide section (10) is provided with a connecting ring (11) at one end away from the tube body (51).

9. The chest inlet bottle according to claim 1, characterized in that: The connector (5) is a plastic part.

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