CN221490920U - Anal canal drainage device - Google Patents

Abstract

The utility model discloses an anal canal drainage device, comprising a drainage tube and a fixing part, wherein the first end of the drainage tube is used to be inserted into the anal canal of a patient, and the second end of the drainage tube is used to connect a negative pressure aspirator; a connecting part is fixedly arranged at the middle part of the outer side of the drainage tube, and wings are movably connected to the left and right sides of the connecting part; the fixing part comprises a first surface and a second surface arranged opposite to each other, the first surface of the fixing part is connected to the wings, and the second surface of the fixing part is used to be connected to the anus of the patient by adhesive bonding. Compared with the traditional method of suturing the drainage tube around the anus with sutures, the utility model adopts an adhesive connection method to reduce the patient's discomfort and infection problems under the premise of effectively fixing the drainage tube.

Description

Anal canal drainage device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an anal canal drainage device.

Background Art

Total mesorectal excision with anus preservation is widely used in clinical practice for low rectal cancer. The incidence of postoperative anastomotic fistula is 3% to 20%. Previous studies have shown that indwelling anal drainage can reduce the incidence of postoperative anastomotic fistula for low rectal cancer. However, in order to fix the drainage tube, the traditional method is to sew the sutures around the anus and then tie a knot with the drainage tube to fix it. Because the pain nerves of the perianal skin are sensitive, patients generally report perianal pain and discomfort, and even inflammation and infection after surgery, which also limits postoperative bed activities and is not conducive to postoperative recovery. For the above reasons, there is an urgent need for a new anal drainage device that can effectively fix the drainage tube and reduce patient discomfort and infection problems.

It should be noted that the above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are prior art.

Utility Model Content

The main purpose of the utility model is to provide an anal canal drainage device, which aims to effectively fix the drainage tube and reduce the patient's discomfort and infection problems.

To achieve the above object, the utility model provides an anal canal drainage device, comprising:

A drainage tube, wherein the first end of the drainage tube is used to be inserted into the anal canal of the patient, and the second end of the drainage tube is used to be connected to a negative pressure aspirator; a connecting portion is fixedly provided at the middle of the outer side of the drainage tube, and wings are movably connected to the left and right sides of the connecting portion;

The fixing part comprises a first surface and a second surface which are arranged opposite to each other, the first surface of the fixing part is connected to the wing part, and the second surface of the fixing part is used for being bonded and connected to the perianal area of the patient.

Optionally, a plurality of side holes are provided on the side of the first end of the drainage tube, and the plurality of side holes are arranged in a ring shape at equal distances around the axis of the drainage tube.

Optionally, an anti-backflow structure is provided inside the drainage tube, and the anti-backflow structure includes a plurality of one-way valves that are offset toward each other, and the openings of the one-way valves face the second end of the drainage tube.

Optionally, the connecting part is an annular structure with a notch, and the annular inner diameter of the connecting part is connected to the outer side of the drainage tube; the annular inner diameter of the connecting part is provided with a first adhesive layer, and the first adhesive layer is used for bonding and connecting with the drainage tube; the notch is used for allowing the drainage tube to be inserted from the side of the connecting part into the annular interior of the connecting part.

Optionally, the connecting portion and the wing portion are movably connected via a wire as a connecting medium.

Optionally, the anal canal drainage device comprises two fixing parts, which have the same structure and are symmetrically arranged on both sides of the patient's anus.

Optionally, the fixing portion extends away from a side of the drainage tube to a buttocks area of the patient.

Optionally, a first matching portion is provided on the first surface of the fixing portion, and a second matching portion is provided on a side of the wing portion facing the first surface of the fixing portion, and the first matching portion and the second matching portion are detachably connected.

Optionally, the first matching portion is configured as a Velcro hook surface, and the second matching portion is configured as a Velcro fleece surface; or, the first matching portion is configured as a Velcro fleece surface, and the second matching portion is configured as a Velcro hook surface.

Optionally, the second surface of the fixing part is provided with a second adhesive layer, and the second adhesive layer is used for bonding and connecting with the patient; the second adhesive layer comprises a non-woven fabric or a polyurethane composite film substrate coated with a medical pressure-sensitive adhesive.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model sets a connection part in the middle of the outer side of the drainage tube, wherein the left and right sides of the connection part are respectively movably connected with wings, and the fixing part is connected to the wing part, and the fixing part is connected to the patient's anus by adhesive connection; compared with the traditional method of suturing the drainage tube around the anus with sutures, the utility model adopts an adhesive connection method to effectively fix the drainage tube, which can reduce the patient's discomfort and infection problems. At the same time, because the connection part and the wing part are movably connected, there is a certain range of movement between the connection part and the wing part; in this way, when the patient gets out of bed after surgery, he does not have to worry too much about the problem of the drainage tube not being effectively fixed due to the loosening of the fixing part and the patient due to physical activities.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of an embodiment of an anal canal drainage device according to the present invention;

FIG2 is a second structural schematic diagram of an anal canal drainage device according to an embodiment of the present invention;

FIG3 is a third structural schematic diagram of an embodiment of the anal canal drainage device of the utility model (the fixing part is hidden);

FIG. 4 is a schematic diagram of the internal structure of the drainage tube in one embodiment of the anal canal drainage device of the present invention (the arrow in the figure indicates the direction of the second end of the drainage tube).

The names of the components marked in the figure are as follows:

The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, what is described is only a part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, it should be noted that the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

The present embodiment discloses an anal drainage device, referring to Figures 1-3, comprising a drainage tube 1, wherein the first end of the drainage tube 1 is used to be inserted into the anal canal of the patient, and the second end of the drainage tube 1 is used to be connected to a negative pressure aspirator (not shown in the figures); a connecting portion 2 is fixedly provided in the middle of the outer side of the drainage tube 1, and wings 4 are movably connected to the left and right sides of the connecting portion 2; a fixing portion 3, wherein the fixing portion 3 comprises a first surface and a second surface which are arranged opposite to each other, the first surface of the fixing portion 3 is connected to the wing 4, and the second surface of the fixing portion 3 is used to be adhesively connected to the perianal area of the patient.

In this embodiment, a connection part 2 is provided in the middle of the outer side of the drainage tube 1, wherein the left and right sides of the connection part 2 are movably connected with wings 4, and the fixing part 3 is connected to the wing 4, and the fixing part 3 is connected to the patient's anus by adhesive connection; compared with the traditional method of suturing the drainage tube 1 around the anus with sutures, this embodiment adopts an adhesive connection method to effectively fix the drainage tube 1, which can reduce the patient's discomfort and infection problems. At the same time, since the connection part 2 and the wing 4 are movably connected, there is a certain range of movement between the connection part 2 and the wing 4; in this way, when the patient gets out of bed after surgery, he does not have to worry too much about the problem that the drainage tube 1 cannot be effectively fixed due to the loosening of the fixing part 3 and the patient due to physical activities.

When in use, the first end of the drainage tube 1 is inserted into the patient's anal canal, and the second end of the drainage tube 1 is connected to the low negative pressure suction device. Under the action of the low negative pressure suction device, the liquid in the anal canal is discharged through the drainage tube 1; after use, the fixing part 3 is released from the patient's adhesion so that the fixing part 3 is no longer adhered to the patient's anus, and then the drainage tube 1 is taken out from the anal canal.

As a preferred solution of the above embodiment, a plurality of side holes 101 are provided on the side of the first end of the drainage tube 1, and the plurality of side holes 101 are arranged in a circular shape at equal distances around the axis of the drainage tube 1. In this way, the liquid in the anal canal can be better discharged through the drainage tube 1 by providing a plurality of side holes 101.

Further, as shown in FIG. 4 , the drainage tube 1 is provided with an anti-backflow structure inside, which includes a plurality of one-way flaps 102 that are offset from each other, and the opening of the one-way flap 102 faces the second end of the drainage tube 1. In this arrangement, the one-way flap 102 is used to realize the anti-backflow function, ensuring that the liquid in the anal canal can only move toward the second end of the drainage tube 1 under the action of the negative pressure suction device.

As a preferred solution of the above embodiment, the connecting part 2 is an annular structure with a notch, and the annular inner diameter of the connecting part 2 is connected to the outer side of the drainage tube 1; the annular inner diameter of the connecting part 2 is provided with a first adhesive layer (not shown in the drawings), and the first adhesive layer is used to be bonded and connected with the drainage tube 1; the notch is used for the drainage tube 1 to be inserted from the side of the connecting part 2 into the annular inner part of the connecting part 2. With such a configuration, during installation, the connecting part 2 of the annular structure is directly snapped onto the outer side of the middle part of the drainage tube 1 through its notch, so as to prevent the connecting part 2 from being inserted and moved from the end of the drainage tube 1 along its axis to the middle part of the drainage tube 1, effectively improving the installation efficiency between the drainage tube 1 and the connecting part 2, and then the fixed connection between the drainage tube 1 and the connecting part 2 is realized through the first adhesive layer, and the structure is simple and practical.

As a preferred solution of the above embodiment, the connecting portion 2 and the wing portion 4 are movably connected through the wire body 5 as a connecting medium. In this arrangement, the edges of the connecting portion 2 and the wing portion 4 are sewn together through the wire body 5. Since the wire body 5 itself has a certain degree of flexibility, the connected connecting portion 2 and the wing portion 4 can be movably connected. In this embodiment, the wire body 5 connects the connecting portion 2 and the wing portion 4 in a wavy fold line manner.

As a preferred solution of the above embodiment, the anal canal drainage device includes two fixing parts 3, which have the same structure and are symmetrically arranged on opposite sides of the drainage tube 1. Such arrangement takes into account that the patient's anus is just between the left and right buttocks of the human body. During the movement of the human body, the activity range of the middle area is higher than that of the two side areas; because the greater the activity range, the worse the adhesive fixation effect is, and the easier it is to fall off. Based on the above considerations, the present embodiment designs the fixing parts 3 to be two with the same structure and symmetrically arranged on opposite sides of the drainage tube 1, which means that only the two side areas of the patient's anus (i.e., the areas with smaller activity range) are adhesively fixed, thereby improving the adhesive firmness between the fixing parts 3 and the patient.

Furthermore, the fixing part 3 extends to the buttocks area of the patient away from the drainage tube 1. In this way, by extending the fixing part 3 away from the drainage tube 1 to the buttocks area of the patient, the adhesion area between the fixing part 3 and the patient is increased, thereby improving the connection firmness between the fixing part 3 and the patient.

As a preferred solution of the above embodiment, a first matching portion (not shown in the drawings) is provided on the first surface of the fixing portion 3, and a second matching portion (not shown in the drawings) is provided on the side of the wing portion 4 facing the first surface of the fixing portion 3, and the first matching portion and the second matching portion are detachably connected. In this way, the fixing portion 3 and the connecting portion 2 are detachably connected through the first matching portion and the second matching portion. If the drainage tube 1 is blocked, the original drainage tube 1 can be directly separated from the fixing portion 3 by releasing the connection between the first matching portion and the second matching portion, and then the mounting portion of the new drainage tube 1 can be reconnected and fixed to the fixing portion 3, which is simple and convenient.

Furthermore, the first matching part is set as a Velcro hook surface, and the second matching part is set as a Velcro fleece surface; or the first matching part is set as a Velcro fleece surface, and the second matching part is set as a Velcro hook surface. In this way, the Velcro hook surface and Velcro fleece surface commonly used in the market are used as the first matching part and the second matching part, which has a simple structure and strong practicality.

Furthermore, the second surface of the fixing part 3 is sequentially provided with a second adhesive layer 301, and the second adhesive layer 301 is used for bonding with the patient; the second adhesive layer 301 comprises a non-woven fabric or a polyurethane composite film substrate coated with a medical pressure-sensitive adhesive. In this way, the first adhesive layer using a non-woven fabric or a polyurethane composite film substrate coated with a medical pressure-sensitive adhesive is widely used in medical supplies, for example, it can be used for sterile dressing. In other words, by using existing materials as the first adhesive layer, it has the advantages of convenient material acquisition and easy processing and manufacturing.

It should be noted that other contents of the anal canal drainage device disclosed in the present utility model are prior art and will not be described in detail here.

The above are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any direct/indirect application of the present invention in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. An anal canal drainage device, comprising: A drainage tube, wherein the first end of the drainage tube is used to be inserted into the anal canal of the patient, and the second end of the drainage tube is used to be connected to a negative pressure aspirator; a connecting portion is fixedly provided at the middle of the outer side of the drainage tube, and wings are movably connected to the left and right sides of the connecting portion; The fixing part comprises a first surface and a second surface which are arranged opposite to each other, the first surface of the fixing part is connected to the wing part, and the second surface of the fixing part is used for being bonded and connected to the perianal area of the patient. 2. The anal canal drainage device according to claim 1, characterized in that a plurality of side holes are provided on the side of the first end of the drainage tube, and the plurality of side holes are arranged in a ring shape at equal distances around the axis of the drainage tube. 3. The anal canal drainage device according to claim 1 is characterized in that: an anti-backflow structure is provided inside the drainage tube, and the anti-backflow structure includes a plurality of one-way valves that are offset toward each other, and the opening of the one-way valve is toward the second end of the drainage tube. 4. The anal canal drainage device according to claim 1 is characterized in that: the connecting part is an annular structure with a notch, and the annular inner diameter of the connecting part is connected to the outer side of the drainage tube; the annular inner diameter of the connecting part is provided with a first adhesive layer, and the first adhesive layer is used for bonding and connecting with the drainage tube; the notch is used for allowing the drainage tube to be inserted from the side of the connecting part into the annular interior of the connecting part. 5. The anal canal drainage device according to claim 1, characterized in that the connecting portion and the wing portion are movably connected via a wire as a connecting medium. 6. The anal canal drainage device according to claim 1, characterized in that it comprises two fixing parts, the two fixing parts have the same structure and are symmetrically arranged on both sides of the patient's anus. 7. The anal canal drainage device according to claim 6, wherein the fixing portion extends away from a side of the drainage tube to a buttocks area of the patient. 8. The anal canal drainage device according to claim 1, characterized in that: a first matching portion is provided on the first surface of the fixing portion, a second matching portion is provided on a side of the wing portion facing the first surface of the fixing portion, and the first matching portion and the second matching portion are detachably connected. 9. The anal canal drainage device according to claim 8, characterized in that: the first matching part is set as a Velcro hook surface, and the second matching part is set as a Velcro fleece surface; or, the first matching part is set as a Velcro fleece surface, and the second matching part is set as a Velcro hook surface. 10. The anal canal drainage device according to claim 1, characterized in that: a second adhesive layer is provided on the second surface of the fixing portion, and the second adhesive layer is used for bonding and connecting with the patient; the second adhesive layer comprises a non-woven fabric or a polyurethane composite film substrate coated with a medical pressure-sensitive adhesive.