Plugging drainage device for high-flow tubular fistula

Abstract

The plugging drainage device comprises an outer sleeve, a flushing pipe, an inner suction pipe and an umbrella-shaped plugging mechanism, a plurality of first through holes are formed in the front end of the outer sleeve, the inner suction pipe is arranged in the outer sleeve, a plurality of second through holes are formed in the front end of the inner suction pipe, and the umbrella-shaped plugging mechanism is arranged in the inner suction pipe. The umbrella-shaped plugging mechanism is arranged at the front end of the outer sleeve and can be retracted into the outer sleeve. The device is provided with the plugging mechanism, the fistula can be plugged during flushing, intestinal juice loss is effectively avoided, postoperative recovery of a patient is facilitated, the umbrella-shaped structure is adopted for plugging, compared with bag plugging, the umbrella fabric of the umbrella-shaped structure can be tightly attached to the wound surface, obstruction is effectively avoided, and the application safety of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a blocking and drainage device for high-flow tubular fistulas. Background Art

[0002] After surgery, pus is produced near the fistula of the digestive tract, and the waste fluid needs to be flushed and sucked out. The flushing and drainage tubes currently used in clinical practice, such as the one disclosed in the invention patent with Chinese patent publication number CN103083787A, have one tube for flushing with saline and the other for negative pressure suction. However, since the fistula is open, excessive intestinal fluid will be sucked out when using the flushing and drainage tube, resulting in nutrient loss in the patient. Utility Model Content

[0003] Purpose of the utility model: The purpose of the utility model is to provide a flushing drainage tube with a blocking mechanism that can block fistulas and prevent intestinal fluid loss.

[0004] Technical solution: The utility model is a blocking and drainage device for high-flow tubular fistulas, comprising an outer sleeve, a flushing tube, an inner suction tube and an umbrella-shaped blocking mechanism. The outer sleeve has a front end with a plurality of first through holes, the inner suction tube is arranged inside the outer sleeve, the front end of the inner suction tube has a plurality of second through holes, and the umbrella-shaped blocking mechanism is arranged at the front end of the outer sleeve and can be retracted into the outer sleeve.

[0005] Furthermore, the umbrella-shaped blocking mechanism includes an umbrella surface and an elastic support, wherein the umbrella surface covers the elastic support. The elastic support can be composed of a combination of superelastic metal wire and an umbrella-shaped frame, or can be directly woven from the superelastic metal wire.

[0006] Preferably, the superelastic metal wire may be a superelastic nickel-titanium alloy wire.

[0007] Furthermore, the tail of the elastic support is fixedly connected to the front end of the inner suction tube. The umbrella-shaped blocking mechanism can be pushed out of the outer tube as the inner suction tube extends forward, thereby blocking the fistula. After use, the umbrella-shaped blocking mechanism can be retracted into the outer tube by withdrawing the inner suction tube.

[0008] Furthermore, the umbrella-shaped blocking mechanism also includes an excitation device, which is arranged at the front end of the inner part of the outer sleeve, and the umbrella surface and the elastic bracket can be retracted into the excitation device.

[0009] Preferably, the excitation device is a short tube integrally formed with the outer sleeve and located inside the front end of the outer sleeve.

[0010] Furthermore, a traction rope is provided at the tail of the elastic support, and the umbrella-shaped blocking mechanism can be pulled and recovered by the traction rope.

[0011] Furthermore, the flushing tube is arranged outside the outer sleeve, and an oblique cut is provided on the top of the flushing tube.

[0012] Furthermore, the first through holes are distributed from the front end of the outer sleeve to the rear end from dense to sparse.

[0013] Furthermore, the rear end of the inner suction tube is connected to a negative pressure bottle.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following advantages: (1) The present invention is provided with a blocking mechanism, which can block the fistula, effectively prevent the loss of intestinal fluid, and is beneficial to the patient's postoperative recovery; (2) The present invention adopts an umbrella-shaped structure for blocking. Compared with the sac blocking, the umbrella surface of the umbrella-shaped structure can be close to the wound surface, effectively avoiding obstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the overall structure of Example 1 of the utility model when it is contracted;

[0016] Figure 2 This is a cross-sectional view of the overall structure of Example 1 of the utility model when it is opened;

[0017] Figure 3 This is a structural diagram of the umbrella-shaped blocking mechanism of Example 1 of the present utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of Example 2 of the utility model when it is contracted;

[0019] Figure 5 This is a schematic diagram of the overall structure of Example 2 of the utility model when it is contracted;

[0020] Figure 6 This is a structural diagram of the umbrella-shaped blocking mechanism in Example 2 of the present utility model. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0022] Example 1

[0023] The present embodiment discloses a device for blocking and draining high-flow tubular fistulas, such as Figure 1-3As shown, it includes an outer sleeve 1, an inner suction tube 2 connected to a negative pressure bottle, a flushing tube 3 for introducing physiological saline for flushing, and an umbrella-shaped blocking mechanism 4. The front end of the outer sleeve 1 is provided with a plurality of first through holes 11, and the first through holes 11 are distributed from the front end of the outer sleeve 1 to the rear from dense to sparse. The inner suction tube 2 is arranged in the outer sleeve 1, and the front end of the inner suction tube 2 is provided with a plurality of second through holes 21. The flushing tube 3 is arranged outside the outer sleeve 1, and the top of the flushing tube 3 is provided with an oblique cut. The umbrella-shaped blocking mechanism 4 is arranged at the front end of the outer sleeve 1 and can be retracted into the outer sleeve 1. The umbrella-shaped blocking mechanism 4 includes an umbrella surface 41 and an elastic bracket 42. The umbrella surface 41 covers the elastic bracket 42, and the tail of the elastic bracket 42 is fixedly connected to the front end of the inner suction tube 2.

[0024] During use, the irrigation and drainage tube is placed in the patient's body, and the inner suction tube 2 is pushed forward. The inner suction tube 2 extends forward, pushing the umbrella-shaped blocking mechanism 4 to pop out of the outer tube 1. After popping out, the umbrella surface 41 opens to block the fistula. At this time, physiological saline is introduced through the irrigation tube 3 for irrigation, and the waste liquid is sucked out by the negative pressure inner suction tube 2. When retrieving, the inner suction tube 2 is pulled to push the umbrella-shaped blocking mechanism 4 back into the outer tube 1, and then the irrigation and drainage tube is removed.

[0025] The flushing and drainage tube with a blocking mechanism disclosed in this embodiment has a simple structure and is easy to operate. It can achieve flushing and drainage while blocking, effectively preventing intestinal fluid loss and facilitating the patient's postoperative recovery.

[0026] Example 2

[0027] The present embodiment discloses a device for blocking and draining high-flow tubular fistulas, such as Figure 4-6 As shown, the main difference from embodiment 1 is that the umbrella-shaped blocking mechanism 4 and the inner straw 2 are not integrated into a single design, and an excitation device 43 is added. Specifically, the umbrella-shaped blocking mechanism 4 also includes an excitation device 43, which is disposed at the front end of the outer tube 1. The umbrella surface 41 and the elastic bracket 42 can be retracted into the excitation device 43. A traction rope 44 is provided at the tail end of the elastic bracket 42. The excitation device 43 is a short tube integrally formed with the outer tube 1 and located inside the front end of the outer tube 1.

[0028] During use, the irrigation and drainage tube is placed into the patient's body, and the umbrella cover 41 and the elastic bracket 42 of the umbrella-shaped blocking mechanism 4 are pushed out of the excitation device 43 by long-nosed pliers or other hard tubes or hard objects. After the umbrella cover 41 is ejected, it opens to block the fistula, and the traction line 44 is fixed. At this time, physiological saline is introduced through the irrigation tube 3 for irrigation, and the waste liquid is sucked out through the negative pressure inner suction tube 2. During recycling, the umbrella-shaped blocking mechanism 4 is pulled back into the excitation device 43 in the outer sleeve 1 by pulling the traction line 44, and then the irrigation and drainage tube is pulled out. Compared with implementation 1, this embodiment can extract the inner suction tube 2 separately for cleaning when the inner suction tube 2 is blocked, without recovering the entire device, and has stronger clinical practicality.

[0029] The embodiments described above are for ease of understanding of the present disclosure and are not intended to limit the interpretation of the present disclosure. The present disclosure can be changed or improved without departing from its main purpose, and its equivalents are also included in the present disclosure. That is, as long as a method obtained by appropriately designing and changing the embodiment by a person skilled in the art has the characteristics of the present disclosure, it is also included in the scope of the present disclosure. The elements and their configurations possessed by the embodiment are not limited to the exemplified cases and can be appropriately changed.

Claims

1. A device for blocking and draining high-flow tubular fistulas, characterized in that: The invention comprises an outer sleeve (1), an inner suction pipe (2), an irrigation pipe (3), and an umbrella-shaped blocking mechanism (4); the outer sleeve (1) has a plurality of first through holes (11) at its front end; the inner suction pipe (2) is arranged in the outer sleeve (1); the inner suction pipe (2) has a plurality of second through holes (21) at its front end; and the umbrella-shaped blocking mechanism (4) is arranged at the front end of the outer sleeve (1) and can be retracted into the outer sleeve (1).

2. The device for blocking and draining high-flow tubular fistula according to claim 1, characterized in that: The umbrella-shaped blocking mechanism (4) comprises an umbrella surface (41) and an elastic bracket (42), wherein the umbrella surface (41) covers the elastic bracket (42).

3. The device for blocking and draining high-flow tubular fistula according to claim 2, characterized in that: The tail of the elastic bracket (42) is fixedly connected to the front end of the inner suction tube (2).

4. The device for blocking and draining high-flow tubular fistula according to claim 2, characterized in that: The umbrella-shaped blocking mechanism (4) further comprises an excitation device (43), wherein the excitation device (43) is arranged at the front end inside the outer sleeve (1), and the umbrella surface (41) and the elastic bracket (42) can be retracted into the excitation device (43).

5. The device for blocking and draining high-flow tubular fistula according to claim 4, characterized in that: A traction rope (44) is provided at the tail of the elastic bracket (42).

6. The device for blocking and draining high-flow tubular fistula according to claim 4, characterized in that: The excitation device (43) is a short tube integrally formed with the outer sleeve (1) and located inside the front end of the outer sleeve (1).

7. The device for blocking and draining high-flow tubular fistula according to claim 1, characterized in that: The flushing pipe (3) is arranged outside the outer sleeve (1), and an oblique cut is provided on the top of the flushing pipe (3).

8. The device for blocking and draining high-flow tubular fistula according to claim 1, characterized in that: The first through holes (11) are distributed from dense to sparse from the front end of the outer sleeve (1) to the rear.

9. The device for blocking and draining high-flow tubular fistula according to claim 1, characterized in that: The rear end of the inner suction tube (2) is connected to a negative pressure bottle.

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