Full-drainage-section flushable multi-channel drainage tube

Abstract

The invention relates to a full-drainage-section flushable multi-channel drainage tube. The drainage tube comprises a main tube, the main pipe comprises a straight pipe section and a drainage section; reinforcing ribs A are arranged on the inner wall of the straight pipe section; the drainage section comprises a cross rib and a spiral strip; a spiral drainage groove is formed between every two adjacent spiral strips; a drainage channel is formed in the axis of the straight pipe section; the upper end of the drainage channel penetrates through the upper end of the straight pipe section; a flushing channel is arranged on the wall of the main pipe; the flushing channel sequentially penetrates through the pipe wall of the straight pipe section and the spiral strip; flushing holes are uniformly distributed in the outer wall of the spiral strip; the radial section of the flushing channel in the straight pipe section protrudes into the reinforcing rib A; and the radial section of the flushing channel in the drainage section protrudes into the outer end part of the cross rib. According to the flushing channel, under the condition that the pipe diameter of the main pipe is kept, the cross section area of the flushing channel is increased, and the flushing flow and the flushing effect are guaranteed; the flushing fluid applies force to the spiral strip in the drainage section by means of the spiral direction of the spiral strip, so that the spiral strip wriggles to stir the drainage part, and the drainage effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a multi-channel drainage tube with a full drainage section and flushable structure. Background Art

[0002] A drainage tube is a catheter that guides blood, tissue fluid, pus and other liquids accumulated inside the human body to the outside of the body. Currently, most of the popular drainage tubes on the market are single-channel ones; this channel is used for liquid drainage, medication and flushing; in order to enable drainage and flushing to be carried out simultaneously, the prior art proposes a technical solution for multi-channel drainage tubes. A multi-channel drainage tube is a medical catheter that integrates multiple functions such as medication, flushing and drainage. In order to achieve this function, a relatively independent drainage channel and flushing channel are provided inside the drainage tube; generally, the drainage channel is set at the axis of the drainage tube; the flushing channel is set inside the tube wall of the drainage tube. The outer wall of the drainage section of the drainage tube is provided with a flushing hole connected to the flushing channel. The drainage speed of the drainage channel is related to the flushing flow of the flushing channel; the larger the caliber of the flushing channel, the larger the flushing flow and the better the drainage effect; and the caliber of the flushing channel is limited by the thickness of the pipe wall of the drainage tube, and the drainage speed of the existing drainage tube does not correspond to the caliber of the drainage channel. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and to provide a multi-channel drainage tube with a full drainage section and flushable structure.

[0004] The technical scheme of the present invention is as follows: a multi-channel drainage tube with full drainage section and flushable includes a main tube; the main tube includes a straight tube section and a drainage section which are integrated at the top and the bottom; a plurality of reinforcing ribs are distributed circumferentially on the inner wall of the straight tube section; the drainage section includes twisted cross ribs and a plurality of spiral strips distributed circumferentially; the reinforcing ribs are connected to the outer end of the cross ribs; the inner wall of the spiral strip is connected to the outer end of the cross ribs; the lower end of the reinforcing ribs is connected to the upper end of the spiral strip; a spirally arranged drainage groove is formed between adjacent spiral strips; a drainage channel is provided at the axis of the straight tube section; the upper end of the drainage channel passes through the upper end of the straight tube section, and the lower end is connected to the drainage groove; the drainage channel and the drainage groove cooperate with each other to drain excess liquid in the human body to the outside of the human body; the reinforcing ribs and the cross ribs increase the supporting strength of the main tube on the one hand, and provide anti-bending and anti-blocking for the main tube on the other hand ability; the main pipe is squeezed by human tissue, and the drainage channel and drainage groove remain unobstructed; the main pipe wall is provided with a flushing channel; the flushing channel sequentially penetrates the wall of the straight pipe section and the spiral strip; the outer wall of the spiral strip is evenly distributed with a number of flushing holes connected with the flushing channel; the flushing liquid introduced from the flushing channel flushes the inside of the human body through the flushing holes; the radial section of the flushing channel in the straight pipe section protrudes into the reinforcing rib armor; the radial section of the flushing channel in the drainage section protrudes into the outer end of the cross rib; the caliber of the flushing channel is enlarged, the flow rate of the flushing liquid can be increased, and the drainage speed can also be increased accordingly, close to the caliber of the drainage channel, and the drainage effect is better; the flushing liquid applies force to the spiral strip in the drainage section with the help of the spiral direction of the spiral strip, so that the spiral strip creeps to stir the drainage part, thereby improving the drainage effect.

[0005] Preferably, the flushing hole is inclined relative to the radial line of the main pipe; the inclination direction of the flushing hole is consistent with the spiral direction of the spiral strip; the flushing liquid flushed out of the flushing hole will in turn act on the spiral strip, strengthen the peristaltic amplitude of the spiral strip, enhance the agitation of the drainage part, and improve the drainage effect.

[0006] Preferably, the full-drainage section flushable multi-channel drainage tube also includes a tubular multi-head joint, a drainage extension tube, and a flushing tube; the multi-head joint is provided with a main channel and a peripheral channel; a partition cylinder is provided between the main channel and the peripheral channel, dividing the main channel and the peripheral channel into two independent cavities; the upper end of the main pipe is mounted outside the partition cylinder; the main channel is respectively connected with the drainage extension tube and the drainage channel; the drainage extension tube can discharge the drainage liquid inside the drainage channel to the outside of the human body through the drainage extension tube; the peripheral channel is respectively connected with the flushing channel and the flushing tube; the flushing tube can add flushing liquid or medicine into the main pipe, so that the flushing hole sprays flushing liquid or medicine to achieve the flushing or drug administration effect.

[0007] Furthermore, the main pipe is made of elastic material; when the upper end of the main pipe is sleeved on the lower end of the separation tube, the inner wall will undergo a certain degree of extrusion deformation; the lower end of the separation tube exceeds the lower end of the multi-head joint to facilitate guiding the upper end of the main pipe to be sleeved outside the separation tube.

[0008] Furthermore, the full-drainage section flushable multi-channel drainage tube also includes a Luer connector; the outer end of the flushing tube is provided with a Luer connector to facilitate connection with external equipment.

[0009] Furthermore, the outer wall of the partition tube is provided with a groove corresponding to the reinforcing rib; the upper end of the straight pipe section is inserted into the multi-head joint, and the reinforcing rib is inserted into the groove to prevent the main pipe from rotating relative to the multi-head joint.

[0010] Furthermore, a plurality of reinforcing ribs B are circumferentially distributed on the inner wall of the drainage extension tube, which can prevent blockage caused by the drainage extension tube being folded in half.

[0011] Furthermore, a trumpet connector is installed at the outer end of the drainage extension tube to facilitate connection with an external drainage bag.

[0012] Furthermore, the full-drainage section flushable multi-channel drainage tube also includes a negative pressure tube; the negative pressure tube is connected to the main channel to increase the drainage speed of the main tube and avoid pressure imbalance in the drainage area.

[0013] Furthermore, a step armor is provided on the upper part of the main channel to match the lower end of the drainage extension tube; the lower end of the drainage extension tube is inserted into the main channel and is limited by the step armor to achieve the connection between the multi-head joint and the drainage extension tube.

[0014] Furthermore, a step B is provided at the lower part of the main channel to match the upper end of the main pipe; the upper end of the main pipe is inserted into the main channel and is limited by the step B to achieve the connection between the multi-head joint and the main pipe.

[0015] The beneficial effects of the present invention are as follows: the full drainage section of the present invention can flush the multi-channel drainage tube, and has the following advantages: (1) The flushing channel of the present invention protrudes toward the cross rib / reinforcement rib, which can increase the cross-sectional area of ​​the flushing channel while maintaining the main pipe diameter, thereby ensuring the flushing flow rate and flushing effect; the flushing liquid exerts force on the spiral strip in the drainage section by virtue of the spiral direction of the spiral strip, so that the spiral strip creeps to stir the drainage part, thereby improving the drainage effect; (2) The flushing hole of the present invention is inclined relative to the radial line of the main pipe; the inclination direction of the flushing hole is consistent with the spiral direction of the spiral strip, thereby increasing the peristaltic amplitude of the spiral strip and improving the drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a stereoscopic diagram of the flushable multi-channel drainage tube with full drainage section in the first embodiment of the present invention; Figure 2 yes Figure 1 A top view of Figure 3 yes Figure 2 AA section view; Figure 4 yes Figure 3I magnified view of; Figure 5 yes Figure 3 BB cross-sectional view; Figure 6 yes Figure 3 CC section view; Figure 7 yes Figure 3 DD cross-sectional view; Figure 8 is a DD cross-sectional view in Embodiment 2; Fig. 9 is a stereoscopic diagram of the flushable multi-channel drainage tube with full drainage section in the third embodiment of the present invention; Fig.10 yes Fig. 9 A top view of Fig.11 yes Fig.10 EE cross-sectional view; Fig.12 yes Fig.11 II enlarged view; Fig.13 yes Fig.11 FF cross-sectional view; Fig.14 yes Fig.11 GG cross-sectional view; Fig.15 yes Fig.11 HH cross-sectional view; In the figure: 11. straight pipe section, 111. reinforcing rib A, 12. drainage section, 121. cross rib, 122. spiral strip, 1221. flushing hole, 123. drainage groove, 13. drainage channel, 14. flushing channel, 2. multi-head joint, 21. main channel, 211. step A, 212. step B, 22. peripheral channel, 23. separation tube, 231. groove, 232. guide fillet, 3. drainage extension tube, 31. reinforcing rib B, 32. trumpet joint, 4. flushing tube, 5. Luer joint, 6. negative pressure tube. DETAILED DESCRIPTION

[0017] Example 1: See Figure 1-7A multi-channel drainage tube with full drainage section 12 and flushable includes a main tube; the main tube includes a straight tube section 11 and a drainage section 12 which are integrated with each other; a plurality of reinforcing ribs 111 are distributed circumferentially on the inner wall of the straight tube section 11; the drainage section 12 includes a twisted cross rib 121 and a plurality of spiral strips 122 distributed circumferentially; in this embodiment, the number of reinforcing ribs 111 and spiral strips 122 are both 4; the reinforcing ribs 111 are connected to the outer end of the cross rib 121; the inner wall of the spiral strip 122 is connected to the outer end of the cross rib 121 The lower end of the reinforcing rib 111 is connected to the upper end of the spiral strip 122; a spiral drainage groove 123 is formed between adjacent spiral strips 122; a drainage channel 13 is provided at the axis of the straight tube section 11; the upper end of the drainage channel 13 passes through the upper end of the straight tube section 11, and the lower end is connected to the drainage groove 123; the drainage channel 13 and the drainage groove 123 cooperate with each other to drain excess liquid inside the human body to the outside of the human body; the reinforcing rib 111 and the cross rib 121 increase the support strength of the main tube on the one hand, and on the other hand On the one hand, it provides the main pipe with anti-bending and anti-blocking capabilities; the main pipe is squeezed by human tissue, and the drainage channel 13 and the drainage groove 123 remain unobstructed; the main pipe wall is provided with a flushing channel 14; the flushing channel 14 passes through the wall of the straight pipe section 11 and the spiral strip 122 in sequence; the outer wall of the spiral strip 122 is evenly distributed with a number of flushing holes 1221 connected to the flushing channel 14; the flushing liquid introduced from the flushing channel 14 flushes the inside of the human body through the flushing holes 1221; the radial section of the flushing channel 14 in the straight pipe section 11 protrudes into the reinforcing rib 111; the radial section of the flushing channel 14 in the drainage section 12 protrudes into the outer end of the cross rib 121; the caliber of the flushing channel 14 is enlarged, the flow rate of the flushing liquid can be increased, and the drainage speed can also be increased accordingly, close to the caliber of the drainage channel 13, and the drainage effect is better; the flushing liquid in the drainage section 12 applies force to the spiral strip 122 with the help of the spiral direction of the spiral strip 122, so that the spiral strip 122 creeps to stir the drainage part, thereby improving the drainage effect.

[0018] Compared with the prior art, the flushing channel 14 of the present invention protrudes toward the cross rib 121 / reinforcement rib 111, which can increase the cross-sectional area of ​​the flushing channel 14 while maintaining the main pipe diameter, thereby ensuring the flushing flow rate and flushing effect; the flushing liquid applies force to the spiral bar 122 in the drainage section 12 with the help of the spiral direction of the spiral bar 122, so that the spiral bar 122 peristalsis to stir the drainage part, thereby improving the drainage effect.

[0019] The flushable multi-channel drainage tube with the entire drainage section 12 also includes a tubular multi-head joint 2, a drainage extension tube 3, and a flushing tube 4; the multi-head joint 2 is provided with a main channel 21 and a peripheral channel 22; a separation tube 23 is provided between the main channel 21 and the peripheral channel 22, dividing the main channel 21 and the peripheral channel 22 into two independent cavities; the upper end of the main tube is sleeved outside the separation tube 23; the main channel 21 is respectively connected with the drainage extension tube 3 and the drainage channel 13; the drainage extension tube 3 can discharge the drainage liquid inside the drainage channel 13 to the outside of the human body through the drainage extension tube 3; the peripheral channel 22 is respectively connected with the flushing channel 14 and the flushing tube 4; the flushing tube 4 can add flushing liquid or medicine into the main tube, so that the flushing hole 1221 sprays flushing liquid or medicine to achieve the flushing or drug administration effect.

[0020] The main pipe is made of elastic material; when the upper end of the main pipe is sleeved on the lower end of the separation tube 23, the inner wall will be squeezed and deformed to a certain extent; the lower end of the separation tube 23 exceeds the lower end of the multi-head joint 2 to facilitate the upper end of the main pipe to be sleeved outside the separation tube 23.

[0021] A guide fillet 232 is provided on the outer edge of the lower end of the separation tube 23 to facilitate the main tube to be sleeved on the separation tube 23 .

[0022] The full drainage section 12 can flush the multi-channel drainage tube and further includes a Luer connector 5; the outer ends of the flushing tubes 4 are all provided with Luer connectors 5 to facilitate connection with external equipment.

[0023] The inner wall of the drainage extension tube 3 is provided with a plurality of circumferentially distributed reinforcing ribs B 31, which can prevent blockage caused by the folding of the drainage extension tube 3. In this embodiment, there are four reinforcing ribs B 31.

[0024] A trumpet connector 32 is installed at the outer end of the drainage extension tube 3 to facilitate connection with an external drainage bag.

[0025] The full drainage section 12 can flush the multi-channel drainage tube and also includes a negative pressure tube 6; the negative pressure tube 6 is connected to the main channel 21 to increase the drainage speed of the main tube and avoid pressure imbalance in the drainage area.

[0026] The outer end of the negative pressure tube 6 is also provided with a Luer connector 5 for connection with an external negative pressure device.

[0027] The negative pressure tube 6 and the flushing tube 4 are arranged on both sides of the multi-joint 2, and the connection end where the negative pressure tube 6 is connected to the multi-joint 2 is arranged lower than the connection end where the flushing tube 4 is connected to the multi-joint 2. The drainage extension tube 3 is arranged coaxially with the main pipe and connected to the upper end of the multi-joint 2.

[0028] The upper part of the main channel 21 is provided with a step armor 211 matching the lower end of the drainage extension tube 3; the lower end of the drainage extension tube 3 is inserted into the main channel 21 and is limited by the step armor 211 to achieve the connection between the multi-head joint 2 and the drainage extension tube 3.

[0029] A step B 212 is provided at the lower part of the main channel 21 to match the upper end of the main pipe; the upper end of the main pipe is inserted into the main channel 21 and is limited by the step B 212 to achieve the connection between the multi-head joint 2 and the main pipe.

[0030] The working principle of this embodiment: the drainage channel 13 and the drainage groove 123 cooperate with each other to drain the excess liquid inside the human body to the outside of the human body; the reinforcing ribs 111 and the cross ribs 121 increase the supporting strength of the main pipe on the one hand, and provide the main pipe with anti-bending and blocking capabilities on the other hand; the main pipe is squeezed by human tissue, and the drainage channel 13 and the drainage groove 123 remain unobstructed; the flushing liquid introduced from the flushing channel 14 flushes the inside of the human body through the flushing hole 1221; the caliber of the flushing channel 14 is enlarged, the flow rate of the flushing liquid can be increased, and the drainage effect is better. The liquid flushed out of the flushing hole 1221 reacts on the spiral strip 122, causing the spiral strip 122 to peristalt and stir the drainage part, thereby improving the drainage effect. The flushing hole 1221 is inclined relative to the radial line of the main pipe; the inclination direction of the flushing hole 1221 is consistent with the spiral direction of the spiral strip 122, thereby increasing the peristaltic amplitude of the spiral strip 122 and improving the drainage effect.

[0031] Example 2: See Figure 8 , Embodiment 2 is basically the same as Embodiment 1, and the similarities are not repeated here. The differences are: the flushing hole 1221 is inclined relative to the radial line of the main pipe; the inclination direction of the flushing hole 1221 is consistent with the spiral direction of the spiral strip 122; the flushing liquid flushed out from the flushing hole 1221 will in turn act on the spiral strip 122, strengthen the peristaltic amplitude of the spiral strip 122, enhance the agitation of the drainage part, and improve the drainage effect.

[0032] Example 3: See Figure 9-15 , Embodiment 3 is basically the same as Embodiment 2, and the similarities are not repeated here. The difference is that: the outer wall of the separation tube 23 is provided with a groove 231 corresponding to the reinforcing rib 111; the upper end of the straight pipe section 11 is matched and inserted into the interior of the multi-head joint 2, and the reinforcing rib 111 is inserted into the groove 231 to prevent the main pipe from rotating relative to the multi-head joint 2.

[0033] Compared with the second embodiment, the thickness of the reinforcing rib 111 in this embodiment is ≥ 1 / 3 of the radius of the inner hole of the straight pipe section 11; the radial cross-section of the flushing channel 14 is further increased in area, and is a long hole shape corresponding to the reinforcing rib 111, which can make full use of the cross-section of the reinforcing rib 111 and increase the diameter of the flushing channel 14.

Claims

1. A multi-channel drainage tube with full drainage section and flushable, comprising a main tube; the main tube comprises a straight tube section and a drainage section which are integrated with each other from top to bottom; and the tube is characterized in that a plurality of reinforcing ribs are distributed circumferentially on the inner wall of the straight tube section; the drainage section comprises twisted cross ribs and a plurality of circumferentially distributed spiral strips; the reinforcing ribs are connected to the outer ends of the cross ribs; the inner walls of the spiral strips are connected to the outer ends of the cross ribs; the lower ends of the reinforcing ribs are connected to the upper ends of the spiral strips; a spirally arranged drainage groove is formed between adjacent spiral strips; a drainage channel is provided at the axis of the straight tube section; the upper end of the drainage channel passes through the upper end of the straight tube section, and the lower end is connected to the drainage groove; a flushing channel is provided on the wall of the main tube; the flushing channel passes through the wall of the straight tube section and the spiral strips in sequence; a plurality of flushing holes connected to the flushing channel are evenly distributed on the outer wall of the spiral strips; the radial cross section of the flushing channel in the straight tube section protrudes into the reinforcing ribs; the radial cross section of the flushing channel in the drainage section protrudes into the outer end of the cross ribs.

2. The full-drainage-section flushable multi-channel drainage tube according to claim 1, characterized in that: The flushing hole is inclined relative to the radial line of the main pipe; the inclination direction of the flushing hole is consistent with the spiral direction of the spiral strip.

3. The fully flushable multi-channel drainage tube according to claim 1, characterized in that: It also includes a tubular multi-head joint, a drainage extension tube, and a flushing tube; the multi-head joint is provided with a main channel and a peripheral channel; a separation tube is provided between the main channel and the peripheral channel; the upper end of the main tube is sleeved outside the separation tube; the main channel is respectively connected with the drainage extension tube and the drainage channel; the peripheral channel is respectively connected with the flushing channel and the flushing tube.

4. The full-drainage-section flushable multi-channel drainage tube according to claim 3, characterized in that: It also includes a Luer connector; the outer ends of the flushing tubes are all provided with a Luer connector.

5. The fully flushable multi-channel drainage tube according to claim 3, characterized in that: The outer wall of the partition cylinder is provided with a groove corresponding to the reinforcing rib armor.

6. The fully flushable multi-channel drainage tube according to claim 3, characterized in that: The inner wall of the drainage extension tube is circumferentially provided with a plurality of reinforcing ribs B.

7. The full-drainage-section flushable multi-channel drainage tube according to claim 3, characterized in that: A trumpet joint is installed at the outer end of the drainage extension tube.

8. The fully flushable multi-channel drainage tube according to claim 3 or 4, characterized in that: It also includes a negative pressure tube; the negative pressure tube is connected to the main channel.

9. The fully flushable multi-channel drainage tube according to claim 3, characterized in that: The upper part of the main channel is provided with a step armor which matches and corresponds to the lower end of the drainage extension tube; the lower end of the drainage extension tube is inserted into the main channel.

10. The fully flushable multi-channel drainage tube according to claim 3, characterized in that: A step B is arranged at the lower part of the main channel and matches with the upper end of the main pipe; the upper end of the main pipe is inserted into the main channel.

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