CN104208801A - An anatomical anal device - Google Patents

Abstract

An anatomical anal canal device, comprising a drainage tube and a flushing tube. There is a drainage channel in the drainage tube, and a flushing channel in the flushing tube. The flushing tube is located in the drainage channel of the drainage tube. Water outlet holes are distributed along the pipe wall in the axial direction, and the water outlet holes are connected to the flushing channel and the drainage channel. The built-in structure of the irrigation tube improves the overall strength, and the structure is compact and the outer wall is smooth, so the foreign body stimulation to the patient's intestinal tract is minimized. At the same time, due to the support function of the irrigation tube in the drainage tube, the continuous opening of the drainage channel is ensured. , the reliability is greatly improved. Easy to set up and easy to care for.

Description

An anatomical anal device

technical field

The invention relates to the technical field of surgical medical instruments, in particular to the prevention of anastomotic complications after rectal cancer surgery.

Background technique

Rectal cancer is cancer between the dentate line and the rectosigmoid junction, and is one of the most common malignant tumors of the digestive tract. In my country, rectal cancer is the third malignant tumor with the highest incidence rate, with about 300,000 to 400,000 new cases every year, and the incidence rate continues to increase. Anastomotic complications are one of the serious complications after rectal cancer surgery. As tumor patients have higher and higher requirements for quality of life, patients with low rectal cancer have an increasingly strong demand for anus-preserving surgery. For surgeons, anus-sparing surgery for low rectal cancer is a big challenge, because it requires the surgeon to completely remove the tumor and preserve the anus function, so the operation is very difficult. Coupled with unfavorable factors such as high intestinal tension and ischemia, the risk of anastomotic leakage and anastomotic bleeding after surgery is higher than that of rectal cancer and colon cancer surgery. In recent years, some medical institutions at home and abroad have achieved certain results by placing the anal canal to prevent anastomotic complications after rectal cancer surgery. Inconvenient clinical operation and other issues.

Contents of the invention

The present invention aims to provide an anatomical anal canal device for preventing anastomotic complications after rectal cancer surgery, which has a compact structure, can better meet ergonomic requirements, has good use comfort and is easy to operate.

An anatomical anal canal device, comprising a drainage tube and a flushing tube. There is a drainage channel in the drainage tube, and a flushing channel in the flushing tube. The flushing tube is located in the drainage channel of the drainage tube. Water outlet holes are distributed along the pipe wall in the axial direction, and the water outlet holes are connected to the flushing channel and the drainage channel.

Further, the flushing pipe includes a front section, a middle section, and a rear section. The upper part of the front section and the middle section of the flushing pipe has a flushing channel with a circular cross section, and the lower part of the middle section and the rear section of the flushing pipe has an arc-shaped flushing channel with an arc-shaped cross section. There is a channel connection between the circular flushing path and the arc flushing path, and the water outlet hole is located on the side wall of the arc flushing path.

Further, there is a self-control valve on the passage between the circular flushing channel and the arc-shaped flushing channel. On the bottom surface of the flushing channel, there is a convex strip with a triangular cross section corresponding to the axial groove.

Further, the angle between the top of the triangular ridge on the bottom surface of the arc-shaped flushing channel is 55-85°.

Further, the cross-section of the flushing pipe is waist-shaped, the two sides are circular truncated edges, and the water outlet holes are on the truncated edges.

Further, the outer diameter of the drainage tube is 10-15mm; the outer diameter of the flushing tube is 5-9mm, and the width in the trimming direction is 4-7mm.

Preferably, the length of the middle section of the flushing tube is 30-50 mm, and the length of the drainage tube is 130-170 mm.

Further, the front section of the flushing tube extends outside the drainage tube, and the length of the front section extending outside is 20-40mm.

Further, there is a rubber stopper at the inlet end of the flushing channel.

Further, the anatomical anal canal device is medical polyvinyl chloride.

The present invention has the following beneficial effects:

1. The flushing tube and the drainage tube are an integrated structure. The built-in structure improves the overall strength, and the structure is compact and the outer wall is smooth, so the foreign body stimulation to the patient's intestinal tract is minimized, and at the same time, it is convenient for production and large-scale application.

2. When in use, it is convenient to flush and drain the contents of the rectum, which is beneficial to keep the intestines clean and relatively low pressure. At the same time, due to the support function of the irrigation tube in the drainage tube, it ensures the continuous opening of the drainage channel, which greatly improves the It reduces the risk of anastomotic leakage due to the sharp increase in the intestinal pressure caused by the contraction of the anal sphincter to close the external opening of the anal canal, accelerates the recovery of intestinal function, shortens the hospitalization time of patients, and reduces the treatment costs of patients.

3. It is easy to operate and use, which reduces the difficulty of the doctor's operation and greatly reduces the workload of nursing.

Description of drawings

Figure 1 is a schematic diagram of the structure of the anatomical anal canal device

Fig. 2 is a sectional view of A-A of Fig. 1

Fig. 3 is a B-B sectional view of Fig. 1

Fig. 4 is a C-C sectional view of Fig. 1

Fig. 5 is a D-D sectional view of Fig. 1

Figure 6 is a schematic diagram of the state of the structure shown in Figure 2 when the anal sphincter contracts

Figure 7 is a schematic diagram of the state of the structure shown in Figure 3 when the anal sphincter contracts

In the figure: 1- flushing tube, 11- front section, 12- middle section, 13 rear section, 2- flushing channel, 21- circular flushing channel, 22- arc flushing channel, 3- drainage tube, 4- drainage channel, 5 -Water outlet, 6-rubber plug, 7-raised bar.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, an anatomical anal canal device includes a drainage tube 3 and a flushing tube 1. There is a drainage channel 4 in the drainage tube 3, and a flushing channel 2 is located in the flushing tube 1. The flushing tube 1 is located in the drainage tube. In the drainage channel 4 of 3, the outer wall of the flushing tube 1 is connected with the inner wall of the drainage tube 3, and the wall of the flushing tube 1 is distributed with outlet holes 5 along the axial direction, and the outlet holes 5 are connected to the flushing channel 2 and the drainage channel 4.

Further, the flushing pipe 1 includes a front section 11, a middle section 12, and a rear section 13. The upper part of the front section 11 and the middle section 12 of the flushing pipe 1 has a flushing channel 21 with a circular cross section, and the lower part of the middle section 12 and the rear section 12 of the flushing pipe 1 has The cross-section is arc-shaped flushing channel 22 , there is a channel connection between the circular flushing channel 21 and the arc-shaped flushing channel 22 , and the water outlet 5 is located on the side wall of the arc-shaped flushing channel 22 .

Further, there is a self-control valve on the channel between the circular flushing channel 21 and the arc-shaped flushing channel 22, and the structure of the self-control valve is: the lower end of the circular flushing channel 21 is provided with an axial valve communicating with the arc-shaped flushing channel 22. Groove, the bottom surface of the arc-shaped flushing channel 22 has a convex strip 7 with a triangular cross section corresponding to the axial groove.

Further, the angle of the top of the triangular ridge 7 on the bottom surface of the arc flushing channel 22 is 55-85°, preferably 80°.

Further, the cross section of the flushing pipe 1 is waist-shaped, the two sides are circular truncated edges, and the outlet holes 5 are on the truncated edges.

Further, the outer diameter of the drainage tube 3 is 10-15 mm; the outer diameter of the flushing tube 1 is 5-9 mm, and the width in the trimming direction is 4-7 mm.

Preferably, the length of the middle section of the flushing tube 1 is 30-50 mm, and the length of the drainage tube 3 is 130-170 mm. The length of the drainage tube is similar to the length of the adult rectum, and the length of the middle section of the irrigation tube, that is, the self-control valve, is similar to the length of the anal canal of the human body, which conforms to the anatomical structure of the human body.

Further, the front section 11 of the flushing tube 1 extends outside the drainage tube, and the length of the front section 11 extending outside is 20-40 mm. It is convenient to connect the liquid inlet pipeline such as the infusion set to the flushing channel, which is more convenient for operation.

Further, there is a rubber plug 6 at the inlet end of the flushing channel 2 . It is blocked when not in use, and it is convenient to connect the flushing liquid inlet pipeline when in use, such as an ordinary infusion set, for lavage.

Further, the anatomical anal canal device is made of medical polyvinyl chloride. It can also be prepared with other medical elastic materials.

When the present invention is in use, it is convenient to connect flushing liquid inlet pipelines such as infusion sets to the flushing channel, so as to flush and drain intestinal contents. When the anal sphincter contracts, due to the support function of the irrigation tube 1 in the drainage tube 3, the continuous open state of the drainage channel is ensured. The triangular ridges of the circular flushing channel 21 are closed upwards to the axial groove at the lower end of the circular flushing channel 21, and the self-control valve is closed. As shown in Figures 6 and 7, the flushing liquid no longer enters the intestinal tube, which greatly reduces the anal canal caused by contraction of the anal sphincter. The pressure in the intestine increases sharply, leading to the risk of anastomotic leakage.

In addition, the present invention can also be used for perianal nursing of critically ill patients, patients with intractable diarrhea and other patients who lose their stool self-control ability, greatly reducing the nursing workload.

Certainly, the present invention also can have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the scope of protection of the appended claims of the present invention.

Claims (10)

1. An anatomical anal canal device, characterized in that: comprise drainage tube (3), flushing tube (1), drainage channel (4) is arranged in the drainage tube (3), flushing road (1) is arranged in the flushing tube (1) 2), the flushing tube (1) is located in the drainage channel (4) of the drainage tube (3), the outer wall of the flushing tube (1) is connected with the inner wall of the drainage tube (3), and the wall of the flushing tube (1) is along the axis Water outlet holes (5) are distributed in the direction, and the water outlet holes (5) are connected to the flushing channel (2) and the drainage channel (4). 2. The anatomical anal canal device according to claim 1, characterized in that: the flushing tube (1) comprises a front section (11), a middle section (12), a back section (13), a front section (11) and a middle section ( 12) The upper part of the flushing pipe (1) has a flushing passage (21) with a circular cross section, and the lower part of the flushing pipe (1) in the middle section (12) and the back section (12) has an arc flushing passage (22) with an arc-shaped cross section. ), there is a channel connection between the circular flushing path (21) and the arc flushing path (22), and the water outlet hole (5) is located on the side wall of the arc flushing path (22). 3. The anatomical anal canal device according to claim 2, characterized in that: there is a self-control valve on the passage between the circular flushing channel (21) and the arc-shaped flushing channel (22), and the structure of the self-control valve is: The lower end of the circular flushing channel (21) is provided with an axial groove communicating with the arc-shaped flushing channel (22), and the bottom surface of the arc-shaped flushing channel (22) corresponds to the axial groove. 7). 4. The anatomical anal canal device according to claim 3, characterized in that: the angle between the top of the triangular convex strip (7) on the bottom surface of the arc-shaped flushing channel (22) is 55-85°. 5. The anatomical anal canal device according to claim 3, characterized in that: the cross-section of the flushing tube (1) is waist-shaped, the two sides are circular truncated edges, and the outlet holes (5) are on the truncated edges . 6. The anatomical anal canal device according to claim 5, characterized in that: the outer diameter of the drainage tube (3) is 10-15 mm; the outer diameter of the flushing tube 1 is 5-9 mm, and the width in the trimming direction is 4 mm. —7mm. 7. The anatomical anal canal device according to claim 3, characterized in that: the length of the middle section of the irrigation tube (1) is 30-50 mm, and the length of the drainage tube 3 is 130-170 mm. 8. The anatomical anal canal device according to claim 7, characterized in that: the front section (11) of the irrigation tube (1) extends outside the drainage tube, and the length of the front section (11) extending outside is 20-40mm. 9. The anatomical anal canal device according to claim 1 or 3, characterized in that there is a rubber plug (6) at the inlet end of the flushing channel (2). 10. The anatomical anal canal device according to claim 1, characterized in that: the anatomical anal canal device is made of medical polyvinyl chloride (with antibacterial properties).