CN210873239U - Active pleuroperitoneal cavity drainage device - Google Patents

Abstract

The utility model discloses an active pleuroperitoneal cavity drainage device, include: drainage subassembly and vacuum aspiration pipe, wherein, the drainage subassembly includes: the washing pipe comprises a pipe body and an expansion part communicated with the pipe body, the expansion part is matched with the opening at the end part of the supporting pipe to seal one end of the supporting pipe, a plurality of washing holes are formed on the outer side surface of the expansion part, and the free end of the pipe body extends out of the supporting pipe; the negative pressure suction tube is accommodated in the supporting tube, a gap is reserved between the tube head of the negative pressure suction tube and the expansion part, and the other end extending out of the supporting tube is connected with negative pressure equipment. The utility model discloses a drainage device is modular structure, and convenient processing production and cost are controllable, and application scope is wider, and can effectively prevent tissue adhesion or tissue embedding to can avoid the drainage hole to block up, ensure that the drainage is smooth and easy, can also easily realize the change of normal position stay tube simultaneously, avoid the drainage tube ectopic.

Description

Active pleuroperitoneal cavity drainage device

Technical Field

The utility model relates to a drainage device, concretely relates to active pleuroperitoneal cavity drainage device belongs to medical instrument technical field.

Background

The clinically applied surgical drainage tubes are of many kinds, with basically similar purposes: the pus, blood and liquid accumulated in human tissues or body cavities are guided to the outside of the body, so as to prevent postoperative infection and influence on wound healing. In the process of thoraco-abdominal surgery or patient recovery, timely drainage is needed to avoid problems of intestinal fistula, accumulation of digestive fluid or inflammatory fluid in the abdominal cavity, complicated abdominal cavity infection and abscess formation, and the like, otherwise, abdominal cavity infection is formed or is difficult to control, and serious patients even can endanger life.

The utility model discloses a "li shi" double-cannula that discloses in 201320108193.3 is an efficient initiative and washes the drainage tube, and this double-cannula is by a diameter 8mm-10 mm's a stay tube that macromolecular material made, one stretch into the stay tube inside act as the transfer line of attracting the pipe and one hug closely (in clinical practice most pass through sew up fixedly) act as the red catheter of flushing pipe outside the stay tube and constitute, and the stay tube is put into the head end in tissue clearance and is sealed, and the periphery has a plurality of side openings, and the interval is about 5mm between the side opening, and the side opening size is about 3 mm. When the device is used, the catheter outside the supporting tube is filled with normal saline, the infusion tube in the supporting tube is connected with negative pressure for suction, the flushing and suction circulation among the indwelling tissues of the supporting tube is completed through the pressure difference between the inner side and the outer side of the supporting tube, and inflammatory media, digestive juice, pus and the like are removed in time. The irrigation drainage tube is widely used for treating and preventing complicated abdominal cavity infection diseases.

However, in actual use, the double cannula also has some problems: (1) the double sleeves (fixed double sleeves) for suturing the flushing pipe in the supporting pipe damage the cylindrical outer surface of the supporting pipe, the pipe is difficult to realize in the conventional rotation process for preventing adhesion after being placed for 3-5 days, and the phenomenon of tissue adhesion is frequently caused during pipe drawing, so that the iatrogenic injury of the tissue even generates large bleeding or new intestinal fistula; (2) tissues such as small intestine, large intestine or omentum are easy to slide between the supporting tube and the washing tube, so that the tube is difficult to pull; if the flushing pipe and the supporting pipe are placed in parallel, namely the split double-sleeve is adopted, in the minimally invasive puncture, expansion, flushing and drainage operation of complex abscess in the abdominal cavity, for example, the treatment of peripancreatic necrotic tissue accumulation or abscess formation which is caused by severe necrotizing pancreatitis, the pipe placing after minimally invasive puncture and expansion is difficult; (3) in the treatment process of complicated intestinal fistula or celiac infection diseases, necrotic tissues are easy to cause the blockage of side holes of the drainage tube, so that the same drainage tube needs to be changed for many times before the flushing and drainage effects are finished, otherwise, the problems of the entering of flushing water, unsmooth drainage and the like can occur, besides the purpose of timely clearing necrotic tissues, the retention of celiac liquid can be increased, and great medical hidden troubles exist. Therefore, the original drainage tube needs to be pulled out clinically and replaced by a new drainage tube through the original sinus, the operation often needs to be performed until the sinus is mature, and even if the drainage tube is replaced clinically, the drainage tube is often out of position.

In general, most prior art drains suffer from one or more of the following disadvantages: 1. the manufacturing process is complex, and more resources are consumed; 2. the flushing pipe is fixed with the drainage pipe, and the length is difficult to be accurately adjusted according to the depth of the drainage part; 3. once the catheter is placed, on one hand, the catheter is difficult to rotate, and on the other hand, the replacement of the drainage catheter has no guide, so that the risk of catheter ectopy exists. In view of the above, there is a need to develop a new drainage device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

For solving prior art's not enough, the utility model aims to provide an active pleuroperitoneal cavity drainage device to improve the drainage precision and realize that the stay tube is put into to the normal position, prevent effectively that the stay tube dystopy.

In order to achieve the above object, the utility model adopts the following technical scheme:

an active pleuroperitoneal drainage device comprising: drainage subassembly and negative pressure suction tube, wherein, the drainage subassembly includes: the washing pipe comprises a pipe body and an expansion part communicated with the pipe body, the expansion part is matched with the opening at the end part of the supporting pipe to seal one end of the supporting pipe, a plurality of washing holes are formed on the outer side surface of the expansion part, and the free end of the pipe body extends out of the supporting pipe; the negative pressure suction tube is accommodated in the supporting tube, a gap is reserved between the tube head of the negative pressure suction tube and the expansion part, and the other end extending out of the supporting tube is connected with negative pressure equipment. When intestinal fluid or inflammatory exudate exists in the abdominal cavity, the intestinal fluid or inflammatory exudate is diluted locally in the supporting tube through flushing fluid in the flushing tube, then enters the supporting tube through a drainage hole of the supporting tube, and is sucked by a negative pressure suction tube connected with negative pressure equipment, so that flushing and sucking circulation is formed locally in the supporting tube, the intestinal fluid or inflammatory exudate is removed timely, local pollution is controlled, and complications such as infection are avoided, wherein the negative pressure equipment comprises but is not limited to: a negative pressure suction machine, a vacuum machine, or a central negative pressure in a medical field.

Preferably, aforementioned stay tube is cylindrical body structure, and convenient early commentaries on classics pipe can effectively prevent the tissue adhesion, avoids the embedding of tissue.

Preferably, the enlarged portion and the support tube form a detachable connection, and the connection mode includes, but is not limited to, a snap connection, a screw connection, or the like. When the support tube needs to be replaced, the enlarged part can be separated from the support tube.

More preferably, the tube and the expansion portion are integrally formed or are mounted and connected through a buckling structure.

More preferably, the drainage device is made of resin material, and the practical use is not limited thereto, and other sterile medical-suitable polymer material or metal material can be used.

Preferably, the free ends of the negative pressure suction tube and the flushing tube body are connected through a fixing clamp to limit the negative pressure suction tube and the flushing tube body, so that the negative pressure suction tube or the flushing tube is prevented from shifting in the using process.

Still preferably, the head of the flushing pipe body is further connected with an air bag, so as to better improve the development and positioning under the auxiliary examination of B-ultrasound or CT and the like.

More preferably, the specific size (length, width, etc.) of the drainage device can be adjusted or cut according to actual needs, preferably, the inner diameter of the support tube is 5-10mm, the inner diameter of the body of the flushing tube is 2-3 mm, the inner diameter of the negative pressure suction tube is 3-4 mm, and the gap between the tube head and the expansion part of the negative pressure suction tube is 5-10 mm.

More preferably, the side wall of the supporting tube is provided with 2-5 rows of drainage holes, the hole interval between the same rows is 4-6 mm, and the diameter of the drainage hole is 3 mm.

As a further improvement of the utility model, the drainage device further comprises an auxiliary sleeve, the outer diameter of the auxiliary sleeve is 1-2mm smaller than the inner diameter of the supporting tube, so that the auxiliary sleeve can be arranged in the supporting tube, and a longitudinal notch is formed on the side wall of the auxiliary sleeve to accommodate the flushing tube, so that the supporting tube can be replaced in situ, the size of the longitudinal notch is about 3mm generally, and the flushing tube can conveniently enter the auxiliary sleeve.

The utility model discloses an useful part lies in:

(1) the drainage device of the utility model is of a combined structure, is convenient to process and produce, has controllable cost, adopts an active drainage principle, is not only suitable for drainage of effusion in general postoperative operations, but also suitable for drainage of complicated abdominal infections such as intestinal fistula, necrotizing pancreatitis and the like, and has wider application range;

(2) the flushing pipe and the negative pressure suction pipe are both positioned in the supporting pipe, and the expansion part of the flushing pipe and an opening at one end part of the supporting pipe form detachable connection, so that the pipe rotating operation on the supporting pipe is convenient to implement in the early stage, and tissue adhesion or tissue embedding is prevented, therefore, the blockage of a drainage hole can be avoided, the smooth drainage is ensured, the drainage effect is optimized, meanwhile, the pipe changing period can be prolonged to more than seven days, and the risks of tissue adhesion and the like caused by the existing clinical pipe rotating difficulty can be avoided;

(3) after the drainage device of the utility model is used, the tube replacement operation is safer and more convenient. The tube replacement operation in the existing clinic is as follows: the original drainage tube is pulled out, and a new drainage tube is placed in the original sinus, so that the operation is usually performed until the sinus is mature, and the drainage tube is usually dislocated due to tube replacement clinically. The utility model discloses a drainage device then realizes the normal position through an auxiliary sleeve pipe and trades the pipe, when needing to be changed the stay tube, at first demolish the negative pressure drainage tube, then hold between the fingers flat with the flushing pipe, put into the cover intraductally with the flushing pipe through cavity sheathed tube rip lead breach, the sleeve pipe follows the flushing pipe and arrives its inflation portion and applys an effort to inflation portion, remove being connected between stay tube and the flushing pipe inflation portion, can remove the stay tube, keep sleeve pipe and flushing pipe position unchangeable, put into the stay tube in the normal position through sheathed tube guide, push away the stay tube or pull outward and wash the body, make stay tube and inflation portion reconnect, remove the sleeve pipe, accomplish the change of normal position stay tube promptly, avoid the drainage tube ectopic.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of an active pleuroperitoneal drainage device according to the present invention;

FIG. 2 is a schematic structural view of the drainage device of the embodiment shown in FIG. 1 with the negative pressure drainage tube removed;

fig. 3 is a schematic structural view of a supporting tube of the active pleuroperitoneal cavity drainage device of the present invention;

fig. 4 is a schematic cross-sectional structure view of a cannula of an active pleuroperitoneal cavity drainage device of the present invention.

The meaning of the reference symbols in the figures: 1. support tube, 11, drainage hole, 2, irrigation tube, 21, tube body, 22, expansion part, 3, negative pressure suction tube, 4, fixation clamp, 5, sleeve, 51 and longitudinal gap.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, the pleuroperitoneal drainage device of the present invention comprises: the drainage device is suitable for drainage of effusion after general operations, can also be suitable for drainage of complicated abdominal cavity infection such as intestinal fistula, necrotizing pancreatitis and the like, has a wide application range and has better clinical adaptability. The utility model provides a power device that negative pressure equipment and washed adopts among the prior art based on all kinds of equipment commonly used such as gravity, machinery, manual work or electron technique can, for example vacuum machine, negative pressure attract machine or medical field's central negative pressure etc. do not do here and describe repeatedly.

The drainage subassembly includes: a supporting tube 1 and a flushing tube 2, both ends of the supporting tube 1 are open, and a plurality of rows of drainage holes 11 arranged at equal intervals are formed on the side wall, and the structure is shown in fig. 3. Stay tube 1 is cylindrical body structure, and convenient early commentaries on classics pipe can effectively prevent the tissue adhesion, avoids the embedding of tissue to can avoid drainage hole 11 to block up, ensure that the drainage is smooth and easy, optimize the drainage effect, the pipe replacement cycle can prolong to more than seven days simultaneously, can avoid the tissue adhesion that the present clinical transfer pipe difficulty leads to, subsequent tube drawing of being convenient for and the pipe replacement.

It should be emphasized that the flushing pipe 2 of the present invention includes a pipe body 21 and an expansion portion 22 communicated with the pipe body 21, and the pipe body 21 and the expansion portion 22 are integrally formed or are installed and connected to form an integral structure through a buckling structure. The enlarged portion 22 is fitted to the end opening of the support tube 1 to close one end of the support tube 1, and a plurality of flushing holes are formed on the outer side surface of the enlarged portion 22, the flushing holes facing the affected area, and the free end of the tube body 21 extending out of the support tube 1. The enlarged part 22 and the support tube 1 are detachably connected, the connection mode includes but is not limited to snap connection, embedded connection or screw connection, when in use, the enlarged part 22 and the end opening of the support tube 1 are connected together, and when the support tube 1 needs to be replaced, the enlarged part 22 and the support tube 1 can be separated.

The negative pressure suction tube 3 is accommodated in the support tube 1, a gap is left between the tube head of the negative pressure suction tube and the expansion part 22, and the other end extending out of the support tube 1 is connected with negative pressure equipment. When intestinal fluid or inflammatory exudate exists in the abdominal cavity, the intestinal fluid or inflammatory exudate is locally diluted in the supporting tube 1 through flushing fluid in the flushing tube 2, then enters the supporting tube 1 through the drainage hole 11 of the supporting tube 1, and is sucked by the negative pressure suction tube 3 connected with negative pressure equipment, so that flushing and sucking circulation is locally formed in the supporting tube 1, the intestinal fluid or inflammatory exudate is timely removed, local pollution is controlled, and complications such as infection and the like are avoided. In order to avoid the displacement of the vacuum suction tube 3 or the irrigation tube 2 during the use, as shown in fig. 1, the vacuum suction tube 3 is connected with the free end of the tube body 21 of the irrigation tube 2 through a fixing clip 4 to limit the position of the two.

In the embodiment, the drainage device is made of a resin material, but the practical application is not limited thereto, and other sterile polymer materials or metal materials suitable for medical use may be adopted as required as long as the purpose of the present invention can be achieved.

As a modification of the embodiment, an air bag is connected to the head of the tube body 21 of the flushing tube 2, so as to improve the development and positioning under the auxiliary examination of B-ultrasonic examination, CT or the like.

As a further improvement of the present invention, the drainage device further includes an auxiliary sleeve 5, the auxiliary sleeve 5 can be accommodated in the support tube 1, and a longitudinal gap 51 is formed on the side wall of the auxiliary sleeve 5 to accommodate the flushing tube 2, the cross-sectional structure of the drainage device is as shown in fig. 4, the length of the drainage device is slightly longer than that of the support tube 1, the size of the longitudinal gap 51 is generally about 2mm, the flushing tube 2 can conveniently enter the auxiliary sleeve 5, and the support tube 1 can be replaced in situ through the auxiliary sleeve 5.

The specific size (length, thickness and the like) of the drainage device can be adjusted or cut according to actual needs, as a specific embodiment, the inner diameter of the supporting tube 1 is 5-10mm, the inner diameter of the tube body 21 of the flushing tube 2 is 2-3 mm, the inner diameter of the negative pressure suction tube 3 is 3-4 mm, and the gap between the tube head of the negative pressure suction tube 3 and the expansion part 22 is 5-10mm so as to ensure that a sufficient drainage space is reserved. For guaranteeing sufficient effectual drainage effect, be provided with 2~5 rows of drainage holes 11 on 1 lateral wall of stay tube, the hole interval between the same row is 4~6mm, and drainage hole 11 diameter is 3 mm.

For a better understanding and for the implementation of the invention, the following detailed description of the drainage device is given in conjunction with the specific operating procedure:

(1) the internal diameter of the selected support tube 1 is about 5-10mm, the universal length (suitable for patients with the height of 180 cm) is generally selected, and the support tube can be precisely cut according to the specific depth in the operation during actual use, so that the length of the support tube 1 extending out of the abdominal wall is about 20 mm.

(2) The expanding part 22 of the flushing pipe 2 is matched with an opening at one end part of the supporting pipe 1 and then closes the supporting pipe 1, the pipe body 21 of the flushing pipe 2 penetrates through the supporting pipe 1, and the diameter of the pipe body 21 is about 2 mm.

If an open abdominal operation is performed, the drainage component is directly placed in a target area, large blood vessels and intestinal tracts, such as the part under the liver, the pelvic cavity, the spleen fossa, the tail part of the pancreas, the lateral sulcus of the colon or the pus cavity are avoided, the open end of the supporting tube 1 and the tube body 21 of the washing tube 2 are simultaneously out of the abdominal wall, the supporting tube 1 is fixed with the abdominal wall, the negative pressure suction tube 3 is placed in the supporting tube 1 in a retrograde manner from the open end of the supporting tube 1, the diameter of the negative pressure suction tube 3 is about 4mm, the length of the negative pressure suction tube 1 extends out of the.

For example, the system abscess is punctured and drained in a minimally invasive way, and the integrated drainage device is directly implanted into the sinus by an indwelling guide wire after the artificial sinus is established by the dilation technology under the guidance of B-ultrasound or CT. The normal saline is continuously injected through the washing tube 2, about 1500-4500 mL of the washing fluid is continuously sucked through the negative pressure suction tube 3 every day, the washing fluid can be the normal saline, the ringer's solution or the peritoneal dialysis solution and other similar fluids to the tissue fluid, the negative pressure suction tube 3 is connected with a drainage bottle with negative pressure so as to collect residual liquid, the drainage bottle is connected with a negative pressure device, and the negative pressure is set to be about 5 atmospheres.

(3) The tube can be rotated in situ for 2 to 3 circles 2 to 3 times after operation, 1 time every day, so as to prevent the tissues from being embedded into or growing into the side holes of the supporting tube 1. After about 7 days of operation, the replacement of the integrated flushing drainage tube can be considered once, and if the side hole of the supporting tube 1 has no obvious blockage phenomenon, the tube can not be replaced. And after the washing and drainage task is finished, the integrated washing drainage tube is directly pulled out.

(4) When the tube is changed, the drainage tube is firstly detached, as shown in fig. 2, then the flushing tube 2 is pinched flat, the flushing tube 2 is placed into the sleeve 5 through the longitudinal gap 51 on the side wall of the hollow sleeve 5, the sleeve 5 reaches the expansion part 22 along with the flushing tube 2 and applies a force to the expansion part 22, the connection between the supporting tube 1 and the flushing tube 2 is released through the reverse force, and the supporting tube 1 is removed. Keeping the positions of the sleeve 5 and the flushing pipe 2 unchanged, placing a new supporting pipe 1 in the original position through the guiding of the sleeve 5, connecting the flushing pipe 2 and the supporting pipe 1 again by pushing the supporting pipe 1 inwards and pulling the pipe body 21 of the flushing pipe 2 outwards, and removing the sleeve 5 to finish the replacement of the original position supporting pipe 1.

To sum up, the utility model discloses a drainage device is modular structure, and convenient processing production and cost are controllable, and can effectively prevent tissue adhesion or tissue embedding, can easily realize the normal position simultaneously and trade the pipe, avoid the drainage tube dystopy, have good clinical suitability and application prospect.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, in the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (10)

1. An active pleuroperitoneal drainage device, comprising: drainage subassembly and negative pressure suction tube, wherein, the drainage subassembly includes: the washing pipe comprises a pipe body and an expansion part communicated with the pipe body, the expansion part is matched with the opening at the end part of the supporting pipe to seal one end of the supporting pipe, a plurality of washing holes are formed on the outer side surface of the expansion part, and the free end of the pipe body extends out of the supporting pipe; the negative pressure suction tube is accommodated in the supporting tube, a gap is reserved between the tube head of the negative pressure suction tube and the expansion part, and the other end extending out of the supporting tube is connected with negative pressure equipment.

2. The active pleuroperitoneal drainage device of claim 1, wherein said support tube is a cylindrical tube structure.

3. The active pleuroperitoneal cavity drainage device of claim 1, wherein said enlarged portion is removably connected to an end opening of said support tube.

4. The active pleuroperitoneal cavity drainage device of claim 1, wherein the tube and the enlarged portion are integrally formed or are mounted and connected by a snap-fit structure.

5. The active pleuroperitoneal drainage device of claim 1, wherein the drainage device is made of a resin material.

6. The active pleuroperitoneal cavity drainage device of claim 1, wherein the free ends of the vacuum suction tube and the irrigation tube are connected by a fixing clip to limit the two.

7. The active pleuroperitoneal cavity drainage device of claim 1, wherein a balloon is further connected to the head of said irrigation tube body.

8. The active pleuroperitoneal cavity drainage device as claimed in claim 1, wherein the inner diameter of the support tube is 5-10mm, the inner diameter of the tube body of the irrigation tube is 2-3 mm, the inner diameter of the vacuum suction tube is 3-4 mm, and the gap between the tube head and the expansion part of the vacuum suction tube is 5-10 mm.

9. The active pleuroperitoneal cavity drainage device of claim 1, wherein the hole spacing on the side wall of the support tube is 4-6 mm, and the diameter of the drainage hole is 3-4 mm.

10. The active drainage device for the pleuroperitoneal cavity according to any of claims 1-9, further comprising an auxiliary sleeve, wherein the auxiliary sleeve can be placed in the supporting tube, and the side wall of the auxiliary sleeve is formed with a longitudinal notch for accommodating the flushing tube.

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