Anti-blocking thoracic and abdominal cavity drainage tube

Abstract

The utility model provides an anti-blocking thoracic and abdominal cavity drainage tube which comprises a flow guide rod and a liquid drainage tube. The head end of the diversion rod is inserted into the thoracic cavity and the abdominal cavity, and the tail end of the diversion rod is connected with the head end of the drainage tube; the tail end of the liquid discharge pipe is arranged outside the body cavity to discharge liquid out of the body; a plurality of drainage grooves are formed in the wall of the flow guide rod; the drainage grooves are symmetrically arranged, extend in the axial direction of the flow guide rod and penetrate through the two ends of the flow guide rod. And the drainage groove is communicated with the liquid discharge pipe. Due to the arrangement of the drainage grooves, a drainage channel is enlarged, and when a certain section of a certain drainage groove is blocked by tissue fragments or blood clots, liquid in the body can still flow into the liquid discharge pipe from other positions of the drainage groove or other drainage grooves and is discharged out of the body; therefore, the utility model effectively solves the problem that the traditional drainage tube is easy to block, so that the drainage efficiency is improved, the pain of a patient is reduced, and the medical cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of anti-clogging chest, abdominal cavity drainage tube. BACKGROUND

[0002] After abdominal surgery, thoracic surgery, or when there is chest and abdominal cavity effusion, drainage tube is needed to drain the pus, blood and liquid accumulated in the body cavity to the outside of the body to relieve symptoms, observe the condition, and inject drugs into the body cavity when needed.

[0003] As shown in Figure 14 And Figure 15 The insertion end of the conventional drainage tube is blocked, and the opposite positions of the side wall are provided with axially staggered drainage holes. The pus, blood and liquid enter the drainage tube from the drainage holes and are then discharged outside the body.

[0004] Because there are tissue fragments, blood clots and sediments in the abdominal cavity and thoracic cavity, these substances can easily block the drainage holes, causing the liquid to be unable to drain outside the body. The common method in clinical practice is to flush the drainage tube by injecting normal saline from the outer end of the drainage tube, but this method has a very low success rate, and ultimately requires a new puncture surgery to place a new drainage tube. This increases the surgical pain of the patient and also increases the medical expenses.

[0005] Therefore, how to avoid the blockage of the drainage tube has become a problem to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] To solve the technical problems in the background art, the utility model discloses a kind of anti-clogging chest, abdominal cavity drainage tube.

[0007] The utility model provides a kind of anti-clogging chest, abdominal cavity drainage tube, including flow guide rod and drainage tube;

[0008] The flow guide rod is solid structure, and one end is inserted into human body, and the other end is connected with one end of the drainage tube;

[0009] The other end of the drainage tube discharges liquid outside the body;

[0010] The side wall of the flow guide rod is provided with a plurality of drainage grooves;

[0011] The drainage grooves are symmetrically arranged, extend axially along the flow guide rod, and penetrate both ends of the flow guide rod;

[0012] The drainage grooves are communicated with the drainage tube.

[0013] The drainage channel increases the flow path for fluid outflow. Even if the drainage channel is blocked in one place, the fluid in the body can still flow into the drain pipe from other parts of the drainage channel and be discharged from the body. Thus, this invention effectively overcomes the disadvantage of traditional drainage pipes being prone to blockage, thereby improving drainage efficiency and reducing medical costs.

[0014] Too many drainage channels will result in low strength of the guide rod, making it prone to breakage; too few drainage channels will result in low utilization of the guide rod. Based on this, a further improvement is to set four drainage channels that are evenly distributed.

[0015] A method that directly creates recessed arc-shaped or U-shaped drainage channels on the outer wall of the guide rod results in a small flow area and allows large foreign objects to easily enter. Therefore, a further improvement involves: the guide rod comprising support plates of equal length that intersect perpendicularly at their center; the outer ends of the support plates are connected to arc-shaped plates; the arc-shaped plates are spaced apart; the arc-shaped plates are concentric, their length exceeding the thickness of the support plates, and forming a symmetrical T-shape with the support plates. This design not only increases the flow area of ​​the drainage channels but also reduces the opening spacing of the channels due to the arc-shaped plates, effectively preventing large foreign objects from entering and causing blockages.

[0016] If the insertion end of the guide rod is straight, its edge will be relatively sharp and easily cut internal tissues. Based on this, a further improvement is made by: the insertion end of the guide rod is provided with a ball head and integrally formed.

[0017] The guide rod and the drain pipe are integrally injection molded, which is quite difficult and has a high processing cost. Based on this, a further improvement is made by: providing a tapered part at the other end of the guide rod, which is inserted into the drain pipe; and fitting one end of the drain pipe over the tapered part and fixing it by welding.

[0018] If the connection between the drainage channel and the drain pipe is located in the same axial position, it is easily covered and blocked by soft tissue fragments or blood clots. Based on this, a further improvement is made: the arc-shaped plates are sequentially configured as a first arc-shaped plate, a second arc-shaped plate, a third arc-shaped plate, and a fourth arc-shaped plate; a first sealing plate is integrally formed and connected between the second and third arc-shaped plates; the first sealing plate is configured as a circular arc plate concentric with the second arc-shaped plate and of the same diameter, with one end connected to one end of the drain pipe and the other end spaced apart from the insertion end of the guide rod; the third arc-shaped plate and the fourth arc-shaped plate... A second sealing plate is integrally formed and connected between the four arc-shaped plates. The second sealing plate is a circular arc plate with the same diameter and concentricity as the second arc-shaped plate. One end of the second sealing plate is connected to one end of the drain pipe, and the other end is spaced apart from the insertion end of the guide rod. A third sealing plate is integrally formed and connected between the fourth arc-shaped plate and the first arc-shaped plate. The third sealing plate is a circular arc plate with the same diameter and concentricity as the second arc-shaped plate. One end of the third sealing plate is connected to one end of the drain pipe, and the other end is spaced apart from the insertion end of the guide rod. The lengths of the first, second, and third sealing plates increase sequentially. With this arrangement, the inlet positions of the four drainage channels are staggered axially in the drainage pipe, which can effectively prevent the four inlets from being blocked by tissue fragments simultaneously.

[0019] The beneficial effects of this invention are: the drainage channel increases the flow path of liquid. When a drainage channel is blocked in a certain place, the liquid in the body cavity can still flow into the drain tube from other parts of the drainage channel and be discharged from the body. Thus, this invention effectively solves the problem of traditional drainage tubes being easily blocked, thereby improving drainage efficiency, avoiding the need for re-insertion of the drainage tube, and reducing medical costs. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0022] Figure 2 This is a front view of Embodiment 1 of this utility model;

[0023] Figure 3 yes Figure 2 Sectional view of BB;

[0024] Figure 4 yes Figure 3 Enlarged view of point C in the middle;

[0025] Figure 5 yes Figure 2 Sectional view of AA;

[0026] Figure 6 This is a front view of Embodiment 2 of this utility model;

[0027] Figure 7 yes Figure 6 Sectional view of DD;

[0028] Figure 8 yes Figure 6 Front view rotated 90° along its axis;

[0029] Figure 9 yes Figure 8 Sectional view of EE;

[0030] Figure 10 yes Figure 6 Front view rotated 180° along its axis;

[0031] Figure 11 yes Figure 10 Sectional view of FF;

[0032] Figure 12 yes Figure 6 Front view rotated 270° along its axis;

[0033] Figure 13 yes Figure 12 A cross-sectional view of GG;

[0034] Figure 14 This is a schematic diagram of a traditional drainage tube.

[0035] Figure 15 This is a front sectional view of a traditional drainage tube;

[0036] In the diagram: 1. Guide rod; 2. Drain pipe; 3. Drainage channel; 11. Support plate; 12. Arc plate; 13. Ball head; 14. Conical part; 121. First arc plate; 122. Second arc plate; 123. Third arc plate; 124. Fourth arc plate; 125. First sealing plate; 126. Second sealing plate; 127. Third sealing plate. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0038] Example 1:

[0039] like Figure 1 and Figure 2 As shown, this utility model discloses an anti-blockage chest and abdominal drainage tube, including a guide rod 1 and a drainage tube 2. The guide rod 1 is a solid structure, with one end inserted into the human body and the other end connected to one end of the drainage tube 2; the other end of the drainage tube 2 drains the liquid out of the body.

[0040] To reduce the processing difficulty of the drainage tube and thus facilitate its shaping, such as Figure 3 As shown, the other end of the guide rod 1 is provided with a tapered portion 14, which is inserted into the drain pipe 2. One end of the drain pipe 2 is sleeved and extends past the tapered portion 14, and is fixed by welding. When one end of the drain pipe 2 is in a molten state, it flows in the direction of the insertion end of the guide rod 1, forming a structure that smoothly transitions with the guide rod 1. The difference between the diameter of the drain pipe 2 at the connection point with the guide rod 1 and the outer diameter of the guide rod 1 is set within 0.5 mm. This ensures that the drainage tube will not obstruct the insertion into the human body.

[0041] If the insertion end of the guide rod 1 is straight, it will form a sharp edge that could easily cut internal tissues. Therefore, a ball head 13 is provided at the end of the guide rod 1 and integrally formed. This makes the insertion end of the guide rod 1 arc-shaped, preventing it from cutting internal tissues.

[0042] The guide rod 1 has multiple drainage grooves 3 on its side wall; the drainage grooves 3 are symmetrically arranged, extend along the axial direction of the guide rod 1, and pass through both ends of the guide rod 1; the drainage grooves 3 are connected to the drain pipe 2. In this embodiment, the number of drainage grooves 3 is set to four evenly distributed to avoid too many drainage grooves 3, which would result in the guide rod 1 having too low strength and being easy to break, or too few drainage grooves 3, which would result in the guide rod 1 having a small drainage area and low drainage rate.

[0043] A recessed arc-shaped or U-shaped drainage groove 3 is directly set on the outer wall of the guide rod 1. However, the flow area of ​​the drainage groove 3 is small, and large foreign objects can easily enter the drainage groove 3 and cause blockage. Therefore, the following design is adopted: Figure 4 As shown, the guide rod 1 includes support plates 11 of equal length that intersect perpendicularly at their center; the outer ends of the support plates 11 are connected to arc-shaped plates 12; there is a gap between the arc-shaped plates 12; the arc-shaped plates 12 are concentric, their length is greater than the thickness of the support plates 11, and they form a T-shape with the support plates 11 in a symmetrical structure. This arrangement not only increases the flow area of ​​the drainage channel 3, but also reduces the opening spacing of the drainage channel 3 due to the arrangement of the arc-shaped plates 12, which can effectively prevent large foreign objects from entering the drainage channel 3 and causing blockage.

[0044] Compared with the prior art, the beneficial effects of this embodiment are: the setting of the drainage channel 3 increases the channel for guiding the liquid outflow. When the drainage channel 3 is blocked at a certain point, the body fluid can still flow into the drain pipe 2 from other positions of the drainage channel 3 and be discharged from the body. Thus, this utility model effectively solves the problem of easy blockage of traditional drainage pipes, thereby improving the drainage efficiency and reducing medical costs.

[0045] Example 2:

[0046] The difference compared to Example 1 is as follows: Figures 5-13As shown, the arc-shaped plates 12 are sequentially configured as a first arc-shaped plate 12112, a second arc-shaped plate 12212, a third arc-shaped plate 12312, and a fourth arc-shaped plate 12412; a first sealing plate 125 is integrally formed and connected between the second arc-shaped plate 12212 and the third arc-shaped plate 12312; the first sealing plate 125 is configured as a circular arc plate concentric with the second arc-shaped plate 12212, one end of which is connected to one end of the drain pipe 2, and the other end is spaced apart from the insertion end of the guide rod 1; a second sealing plate 126 is integrally formed and connected between the third arc-shaped plate 12312 and the fourth arc-shaped plate 12412; the... The second sealing plate 126 is configured as an arc plate concentric with and of the same diameter as the second arc plate 12212. One end of the arc plate is connected to one end of the drain pipe 2, and the other end is spaced apart from the insertion end of the guide rod 1. A third sealing plate 127 is integrally formed and connected between the fourth arc plate 12412 and the first arc plate 12112. The third sealing plate 127 is configured as an arc plate concentric with and of the same diameter as the second arc plate 12212. One end of the arc plate is connected to one end of the drain pipe 2, and the other end is spaced apart from the insertion end of the guide rod 1. The lengths of the first sealing plate 125, the second sealing plate 126, and the third sealing plate 127 increase sequentially. With this configuration, the inlet positions of the four drainage channels 3 are staggered axially in the drainage pipe, which can effectively prevent simultaneous blockage by tissue fragments or blood clots.

[0047] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A clogging-resistant chest and abdominal drainage tube, characterized in that: Includes a guide rod (1) and a drain pipe (2); The guide rod (1) is a solid structure, with one end inserted into the human body and the other end connected to one end of the drain pipe (2); The other end of the drain pipe (2) drains the liquid out of the body; The guide rod (1) has multiple flow channels (3) on its side wall; The diversion groove (3) is arranged symmetrically, extends along the axial direction of the guide rod (1), and passes through both ends of the guide rod (1); The drainage channel (3) is connected to the drain pipe (2).

2. The anti-blockage chest and abdominal drainage tube according to claim 1, characterized in that: The diversion channels (3) are set to be four evenly distributed.

3. The anti-blockage chest and abdominal drainage tube according to claim 2, characterized in that: The guide rod (1) includes support plates (11) of equal length and perpendicularly intersecting at the center position. The outer end of the support plate (11) is connected to an arc-shaped plate (12). The arc-shaped plates (12) are spaced apart; The arc plate (12) is concentric, its length is greater than the thickness of the support plate (11), and it forms a T-shape with the support plate (11) to form a symmetrical structure.

4. The anti-blockage chest and abdominal drainage tube according to claim 3, characterized in that: The end of the guide rod (1) is provided with a ball head (13) and is integrally formed and connected.

5. A clogging-resistant chest and abdominal drainage tube according to claim 4, characterized in that: The other end of the guide rod (1) is provided with a tapered part (14), which is inserted into the drain pipe (2); One end of the drain pipe (2) is sleeved over the tapered part (14) and fixed by welding.

6. A clogging-resistant chest and abdominal drainage tube according to claim 3, characterized in that: The arc-shaped plate (12) is sequentially configured as a first arc-shaped plate (121), a second arc-shaped plate (122), a third arc-shaped plate (123), and a fourth arc-shaped plate (124). A first sealing plate (125) is integrally formed between the second arc plate (122) and the third arc plate (123); the first sealing plate (125) is configured as a circular arc plate with the same diameter as the second arc plate (122), one end of which is connected to one end of the drain pipe (2), and the other end is provided with a gap between it and the insertion end of the guide rod (1); The third arc plate (123) and the fourth arc plate (124) are integrally connected by a second sealing plate (126); the second sealing plate (126) is configured as an arc plate with the same diameter as the second arc plate (122), one end of which is connected to one end of the drain pipe (2), and the other end is provided with a gap between it and the insertion end of the guide rod (1); The third sealing plate (127) is integrally formed and connected between the fourth arc plate (124) and the first arc plate (121); the third sealing plate (127) is configured as a circular arc plate with the same diameter as the second arc plate (122), one end of which is connected to one end of the drain pipe (2), and the other end is provided with a gap between it and the insertion end of the guide rod (1); The lengths of the first sealing plate (125), the second sealing plate (126), and the third sealing plate (127) increase sequentially.

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