A novel pelvic and abdominal drainage tube

Abstract

This invention discloses a novel pelvic and abdominal cavity drainage tube, comprising: a main tube, which includes an interconnected aspiration section and a drainage section. The aspiration section has a through aspiration channel along its length. The drainage section has a main channel and several secondary channels circumferentially connected, with the main and secondary channels extending along the length of the aspiration section and each channel having one end connected to the aspiration channel. The projected area of ​​the main channel is larger than that of the secondary channels. The main and secondary channels each form a strip-shaped opening on the sidewall of the drainage section corresponding to the main channel. A secondary tube has several drainage grooves circumferentially connected to the secondary tube. The outer wall of the drainage section has a connection hole corresponding to the main channel. One end of the secondary tube is inserted into the main channel through the connection hole to connect the drainage grooves and the main channel. The secondary tubes enable drainage of the tissue groove area, thereby expanding the overall drainage range of the drainage tube and achieving a better drainage effect. The connection between the secondary tubes and the main channel reduces the overall size, thereby reducing the size of the human wound.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a novel pelvic and abdominal drainage tube. Background Technology

[0002] Currently, grooved drainage tubes are often used for postoperative drainage of the pelvic and abdominal cavities. For details, please refer to the prior patent application number CN202210524134.8. The characteristic of this type of grooved drainage tube is that its surface forms a groove-shaped drainage channel, which can ensure strong support when it is placed in the human body.

[0003] After the drainage tube is inserted into the human body, its position needs to be adjusted with surgical forceps. However, the drainage tubes nowadays are generally large in diameter, so they are mostly used for draining superficial fluid accumulation in the pelvic and abdominal cavities. Their drainage effect is poor for the groove-like areas between tissues in the pelvic and abdominal cavities, so this needs to be improved. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a novel pelvic and abdominal drainage tube that can drain the groove-shaped area of ​​tissue, thereby achieving a better drainage effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A novel pelvic and abdominal drainage tube, comprising:

[0007] The main pipeline includes an interconnected suction section and a drainage section. The suction section has a through suction channel along its length. The drainage section has a main channel and several secondary channels circumferentially. The main channel and secondary channels are connected along the length of the suction section, and one end of each main channel and secondary channel is connected to the suction channel. The projected area of ​​the main channel is larger than that of the secondary channels. The main channel and secondary channels form strip-shaped openings on the sidewalls of the corresponding drainage section.

[0008] The secondary pipeline has several drainage channels around its circumference. The outer wall of the drainage section has a connection hole corresponding to the main channel. One end of the secondary pipeline is inserted into the main channel along the connection hole to connect the drainage channels and the main channel.

[0009] As a further improvement of the present invention, the connecting hole corresponds to the opening, the main channel is provided with a positioning groove, the outer wall of the secondary pipeline is provided with a positioning block, the positioning block slides with the positioning groove to restrict the rotation of the secondary pipeline relative to the main pipeline, the end of the secondary pipeline is provided with a limiting groove, and the main channel is provided with a limiting mechanism corresponding to the limiting groove, the limiting mechanism restricts the movement range of the secondary pipeline along the main channel through the limiting groove.

[0010] As a further improvement of the present invention, the limiting mechanism includes a first limiting block and a second limiting block arranged front and rear along the insertion direction of the secondary pipeline in the main channel. The first limiting block is used to abut against the end of the secondary pipeline, and the side of the second limiting block away from the first limiting block forms a guide slope. The second limiting block is used to engage with the abutment limiting groove to limit the back movement of the secondary pipeline.

[0011] As a further improvement of the present invention, when the positioning block is connected to the positioning groove, the drainage groove and the opening are aligned with each other.

[0012] As a further improvement of the present invention, a sliding groove is provided on the inner side of the opening along the length direction, and a mounting block is provided at the end of the secondary pipeline away from the positioning groove. A slider is provided at the end of the mounting block, and the slider slides along the sliding groove to adjust the bending degree of the secondary pipeline relative to the main pipeline.

[0013] As a further improvement of the present invention, the opening includes two symmetrically arranged flexible edges, and the secondary pipeline is housed within the main channel and moved out to the outside through the opening.

[0014] As a further improvement of the present invention, a traction bar is provided at the end of the secondary pipeline away from the connection hole.

[0015] The beneficial effects of this invention are:

[0016] 1. By setting up secondary pipelines, drainage can be achieved in the grooved area of ​​the tissue, thereby expanding the overall drainage range of the drainage pipe and obtaining a better drainage effect;

[0017] 2. Connecting the secondary pipeline to the main channel can reduce the overall size, thereby reducing the size of the wound on the human body;

[0018] 3. Adjusting the size of the main channel's projected area ensures the main channel's suction power, thereby providing greater suction power for the secondary pipeline. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall installation of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the main pipeline of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the connection between the secondary pipeline and the main pipeline of the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of the main channel of the present invention;

[0023] Figure 5 This is a schematic diagram of the secondary pipeline of the present invention.

[0024] Reference numerals: 1. Main pipeline; 2. Suction section; 3. Drainage section; 4. Suction channel; 5. Main channel; 6. Secondary channel; 7. Opening; 8. Secondary pipeline; 9. Drainage groove; 10. Connecting hole; 11. Positioning block; 12. Positioning groove; 13. Limiting groove; 14. First limiting block; 15. Second limiting block; 16. Guide slope; 17. Sliding groove; 18. Mounting block; 19. Sliding block; 20. Soft edge; 21. Traction bar. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0026] like Figure 1-5 As shown, a novel pelvic and abdominal cavity drainage tube is used to drain postoperative pelvic and abdominal cavity effusions and exudates to the outside. It includes a main pipeline 1, which includes an aspiration section 2 and a drainage section 3 connected to each other. One end of the aspiration section 2 is connected to the drainage section 3, and the aspiration section 2 and the drainage section 3 are integrally formed. The other end is connected to a negative pressure device and passes through the negative pressure device, which is used to provide negative pressure to the main pipeline 1. Specifically, in this embodiment, the negative pressure device is an elastic balloon.

[0027] Furthermore, the suction section 2 is provided with a through suction channel 4 along its length, and the drainage section 3 is provided with a main channel 5 and several secondary channels 6 around its circumference. Specifically, in this embodiment, the number of secondary channels 6 is 3. The main channel 5 and the secondary channels 6 are connected along the length of the suction section 2, and one end of the main channel 5 and the secondary channels 6 are connected to the suction channel 4. The projected area of ​​the main channel 5 is larger than that of the secondary channels 6. The main channel 5 and the secondary channels 6 form strip-shaped openings 7 on the sidewalls of the drainage section 3.

[0028] It also includes a secondary pipe 8, which has several drainage channels 9 arranged around its circumference. Specifically, in this embodiment, the number of drainage channels 9 is 4. The outer wall of the drainage section 3 is provided with a connection hole 10 corresponding to the main channel 5. One end of the secondary pipe 8 is inserted into the main channel 5 along the connection hole 10 so that the drainage channels 9 and the main channel 5 are connected.

[0029] In use, the secondary tube 8 is connected to the drainage section 3 and enters the human body along with the main tube 1. While inside the human body, medical staff use surgical forceps to place the main tube 1 on the surface of the tissue, and then use surgical forceps to move the secondary tube 8 to the groove-shaped area of ​​the tissue. Thus, the main tube 1 and the secondary tube 8 achieve the drainage effect of multiple areas of the tissue in the pelvic and abdominal cavities.

[0030] Preferably, the connecting hole 10 corresponds to the opening 7, the main channel 5 is provided with a positioning groove 12, the outer wall of the secondary pipeline 8 is provided with a positioning block 11, the positioning block 11 and the positioning groove 12 slide to restrict the rotation of the secondary pipeline 8 relative to the main pipeline 1, the end of the secondary pipeline 8 is provided with a limiting groove 13, and the main channel 5 is provided with a limiting mechanism corresponding to the limiting groove 13, the limiting mechanism restricts the range of movement of the secondary pipeline 8 along the main channel 5 through the limiting groove 13.

[0031] The positioning block 11 and positioning groove 12 can restrict the rotation of the secondary pipeline 8 relative to the main pipeline 1, thereby improving the controllability of the position of the secondary pipeline 8. At the same time, the limiting groove 13 can ensure the mutual cooperation between the limiting groove 13 and the limiting mechanism.

[0032] Meanwhile, since the drainage tube is located inside the human body for a long time, and surgical forceps are often used during the installation and placement of the drainage tube, the cooperation between the limiting mechanism and the limiting groove 13 can prevent the secondary tube 8 from separating from the main tube 1 inside the human body, thereby ensuring a stable connection between the two and ensuring the drainage effect.

[0033] Preferably, the limiting mechanism includes a first limiting block 14 and a second limiting block 15 arranged in the main channel 5 along the insertion direction of the secondary pipe 8. The first limiting block 14 is used to abut the end of the secondary pipe 8, and the side of the second limiting block 15 away from the first limiting block 14 forms a guide slope 16. The second limiting block 15 is used to engage with the abutment limiting groove 13 to limit the return movement of the secondary pipe 8.

[0034] In use, one end of the secondary pipe 8 is inserted into the diversion section 3 along the connection port, and the positioning block 11 and the positioning groove 12 slide and limit the movement. Due to the presence of the guide slope 16, the secondary pipe 8 can naturally deform when entering, so as to pass through the second limiting block 15, so that the second limiting block 15 and the limiting groove 13 can be engaged and cooperate, thereby limiting the secondary pipe 8. At the same time, due to the presence of the positioning block 11 and the positioning groove 12, the separation of the second limiting block 15 and the limiting groove 13 caused by the rotation of the secondary pipe 8 relative to the main pipe 1 can be avoided, thus ensuring the limiting effect.

[0035] Meanwhile, due to the use of the first limiting block 14 and the second limiting block 15 for limiting, the overall structure is simple and compact, making it convenient for use as a disposable medical device and reducing costs.

[0036] Preferably, when the positioning block 11 is connected to the positioning groove 12, the drainage groove 9 and the opening 7 are aligned with each other. Therefore, when the secondary pipe 8 is connected to the main pipe 1, the side wall of the secondary pipe 8 can be prevented from blocking the opening 7, so as to maximize the drainage effect. At the same time, the connection between the positioning block 11 and the positioning groove 12 can keep the alignment of the drainage groove 9 and the opening 7, so as to ensure the stability of the overall structure.

[0037] Preferably, a sliding groove 17 is provided on the inner side of the opening 7 along the length direction. Specifically, the inner side of the opening 7 is the inner side of the opening 7, that is, the side of the plane where the opening 7 is located facing the main pipeline 1. A mounting block 18 is provided at the end of the secondary pipeline 8 away from the positioning groove 12. A slider 19 is provided at the end of the mounting block 18. The slider 19 slides along the sliding groove 17 to adjust the bending degree of the secondary pipeline 8 relative to the main pipeline 1.

[0038] The slider 19 and the sliding groove 17 can constrain the secondary pipe 8 to a certain extent, that is, keep the end of the secondary pipe 8 corresponding to the main pipe 1, so that the overall shape and position of the secondary pipe 8 are more controllable. At the same time, since the main pipe 1 itself is made of soft material, the operator can pull the secondary pipe 8 to separate the slider 19 from the sliding groove 17, thereby allowing the secondary pipe 8 to have a larger range of motion.

[0039] Preferably, the opening 7 includes two symmetrically arranged flexible edges 20, and the secondary pipe 8 is housed within the main channel 5 and extends to the outside through the opening 7.

[0040] By setting the soft edge 20, the secondary tube 8 can be completely buried in the main channel 5 by deforming the opening 7 before entering the human body, thereby making the overall size of the drainage tube smaller and reducing the size of the incision required in the human body. After entering the human body, the secondary tube 8 can be separated from the main channel 5 by surgical forceps, thus making the operation more flexible.

[0041] Preferably, the end of the secondary tube 8 away from the connection hole 10 is provided with a traction bar 21. When the secondary tube 8 is housed in the main channel 5, the traction bar 21 is exposed to the outside world, so that when inside the human body, the operator can pull the traction bar 21 with surgical forceps to separate the secondary tube 8 from the main channel 5.

[0042] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A new type of pelvic drain characterized in that, The utility model relates to a kind of main pipe and auxiliary pipe, which comprises: Main pipe (1), the main pipe (1) includes suction section (2) and drainage section (3) connected with each other, through hole suction channel (4) is provided in the suction section (2) along the length direction, the drainage section (3) is respectively provided with main channel (5) and several auxiliary channels (6) in circumference direction, the main channel (5) and auxiliary channel (6) are through along the length direction of suction section (2), and the main channel (5) and auxiliary channel (6) are all communicated with suction channel (4) in one end, the main channel (5) is projected area greater than auxiliary channel (6), the main channel (5) and auxiliary channel (6) correspond to the side wall of drainage section (3) and form strip-shaped opening (7); Auxiliary pipe (8), the auxiliary pipe (8) is provided with several drainage grooves (9) in circumference direction, the outer wall of drainage section (3) is provided with connecting hole (10) corresponding to main channel (5), one end of auxiliary pipe (8) is inserted into main channel (5) along connecting hole (10) to make drainage groove (9) and main channel (5) communicate; The opening (7) includes two symmetrically arranged flexible edges (20), the auxiliary pipe (8) is accommodated in the main channel (5) and is removed to the outside through the opening (7).

2. A new type of pelvic drainage tube according to claim 1, characterized in that, The connecting hole (10) corresponds to the opening (7), the main channel (5) is provided with positioning groove (12), the outer wall of the auxiliary pipe (8) is provided with positioning block (11), the positioning block (11) and the positioning groove (12) slide to limit the rotation of the auxiliary pipe (8) relative to the main pipe (1), the end of the auxiliary pipe (8) is provided with a limiting groove (13), the main channel (5) is provided with a limiting mechanism corresponding to the limiting groove (13), and the limiting mechanism limits the movement range of the auxiliary pipe (8) along the main channel (5) through the limiting groove (13).

3. A new type of pelvic drainage tube according to claim 2, characterized in that, The limiting mechanism includes first limiting block (14) and second limiting block (15) arranged before and after along the insertion direction of auxiliary pipe (8) in the main channel (5), the first limiting block (14) is used for abutting against the end of auxiliary pipe (8), the second limiting block (15) forms a guide inclined surface (16) on the side away from the first limiting block (14), and the second limiting block (15) is used for abutting against the limiting groove (13) to limit the back movement of the auxiliary pipe (8).

4. The new type of pelvic drainage tube according to claim 2, characterized in that, When the positioning block (11) is connected with the positioning groove (12), the drainage groove (9) is aligned with the opening (7).

5. The new type of pelvic drainage tube according to claim 2, characterized in that, The inner side of the opening (7) is provided with a sliding groove (17) along the length direction, the end of the auxiliary pipe (8) away from the positioning groove (12) is provided with a mounting block (18), the end of the mounting block (18) is provided with a sliding block (19), and the sliding block (19) slides along the sliding groove (17) to adjust the bending amplitude of the auxiliary pipe (8) relative to the main pipe (1).

6. The new type of pelvic drainage tube according to claim 1, characterized in that, The end of the auxiliary pipe (8) away from the connecting hole (10) is provided with a traction strip (21).

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