WO2013117121A1

WO2013117121A1 - Non-clogging drainage tube with high negative pressure

Info

Publication number: WO2013117121A1
Application number: PCT/CN2013/070499
Authority: WO
Inventors: 朱新生
Original assignee: Zhu Xinsheng
Priority date: 2012-02-10
Filing date: 2013-01-16
Publication date: 2013-08-15
Also published as: CN102580222A

Abstract

Disclosed is a non-clogging drainage tube with high negative pressure, comprising a built-in sleeve (1) provided with a plurality of sleeve drainage side holes (11) on the outside surface thereof and a built-in drainage tube (2) provided with a plurality of inner tube drainage side holes on the outside surface thereof, wherein the built-in drainage tube (2) is covered with the built-in sleeve (1). The built-in drainage tube (2) is arranged in such a manner that the surface of the ends of the inner tube drainage side holes is wrapped with a filter layer (6). The built-in drainage tube (2) can be disassembled from the built-in sleeve (1). By providing the filter layer on the built-in drainage tube and the built-in drainage tube being replaceable, the present invention can make negative pressure uniformly distributed on the surface of the filter layer through filtering by the filter layer and the attenuation of pressure when performing enclosed high negative pressure suction, resulting in the content to be drained entering the drainage bottle quickly and the drainage tube not easily becoming clogged.

Description

High negative pressure non-clogging drainage tube

Technical field

The invention relates to a medical device, in particular to a high negative pressure non-clogging drainage tube.

Background technique

External drainage refers to the mechanical measures to establish a development channel between the human body cavity, organs, joints, tissues and the like, which is one of the basic operations of surgery. The existing surgical drainage tubes mainly include two types of single lumen drainage tubes and two sets of drainage tubes.

At present, the best drainage effect is the cannula drainage, that is, a double-tube drainage tube utilizing the principle of low negative pressure or gravity drainage, including a built-in sleeve placed in the body cavity of the patient for cleaning, a built-in drainage tube for drainage, The medicine pot, the drug feeding catheter and the drainage external tube, the built-in sleeve is outside the built-in drain tube, the front end of the built-in sleeve is open or not open, the front end of the built-in drain tube is open, and the tube wall of the two tubes is provided with a plurality of drainage side holes The medicine pot is composed of a front part and a rear part which are connected together by a detachable interface sleeve, and the medicine pot has an outer joint at both ends, and an inner joint at the back of the medicine pot directly and the medicine is added. The back end of the pot is connected, and the back of the medicine pot is also provided with a flushing and/or dosing interface. The back end of the built-in sleeve is fixed to the front end of the medicine pot, and the rear end of the built-in drain tube is connected to the medicine pot. The inner joint of the portion is connected to the draining outer tube that is sleeved at the outer joint of the rear end of the dosing pot.

After the operation, the double-cannula drainage end is placed on the wound surface to be drained, and the suture is fixed from the body surface, and the negative pressure drainage device, the suction device or the drainage bag is connected to the rear end of the external tube. If negative pressure drainage is required, the opening at the irrigation interface must be opened to allow air or irrigation fluid to enter the official cavity for wound irrigation and drainage. In order to prevent the drainage tube from being blocked during use, the built-in drainage tube can be replaced. The double cannula has the functions of postoperative drainage, wound washing, wound administration, prevention of clogging of the built-in drainage tube, etc. It is the most complete and advanced postoperative drainage tube, but it still has the following defects: 1) can not be completely Solve the key "bottleneck" problem affecting the drainage effect - the drainage tube is blocked (Note: Although the built-in drainage tube can be replaced, the casing drainage hole of the built-in sleeve outside the built-in drainage tube will still be blocked); 2) When utilizing When negative pressure is actively drained, the casing drainage requires air or liquid to continuously enter the drainage area, which is easy to form a cavity locally, and also increases the risk of bacteria in the air entering the drainage area; 3) only gravity or low negative can be applied Pressure is used for drainage, and the biggest disadvantage of gravity and low negative pressure drainage is that the drainage is not timely and incomplete, and it is difficult to eliminate residual dead space in a short time; 4) After the drainage tube is inserted into the human body and used for a period of time, the drainage tube and the wound surface It is easy to form adhesions, is not easy to pull out, and has the risk of causing bleeding of the wound during the extraction process. Drainage is the basic technique of surgery, and it is widely used. However, cases of failure due to the above reasons have occurred from time to time.

Summary of the invention

The object of the present invention is to provide a high negative pressure non-clogging drainage tube, which can avoid the adhesion of the built-in drainage tube and the wound surface, and can replace the built-in drainage tube, effectively solve the clogging of the drainage tube, and prevent bacteria from entering the drainage area. The new type of drainage tube is suitable for occasions where the patient needs to drain the surgical wound or body cavity when suturing the wound in one stage, and the drainage is timely and thorough.

The solution to solve the technical problem of the present invention is: a high negative pressure non-clogging drainage tube, comprising a built-in sleeve with a plurality of casing drainage side holes on the outer surface and a plurality of inner tube drainage side holes on the outer surface The built-in drainage tube has a built-in sleeve, and the built-in drainage tube is provided with an end surface of the inner tube drainage side hole and a filter layer, and the built-in drainage tube can be removed from the built-in sleeve.

As a further improvement of the above technical solution, the utility model further includes a built-in sleeve coupling head, wherein the built-in sleeve coupling head is provided with a water inlet interface and an air inlet interface, and the water inlet interface and the air inlet interface are connected to the built-in sleeve a water inlet passage on the coupling head, the inlet inlet passage being connectable with an inlet inlet chamber disposed on the built-in sleeve, the built-in sleeve coupling head further provided with a built-in buckle The built-in undercut snaps onto the buckle groove of the built-in drain tube.

As a further improvement of the above technical solution, the built-in drainage tube is provided with an inner tube, a joint and an extension tube, and the inner tube drainage side hole is disposed on the inner tube, and the buckle groove is disposed between the joint and the extension tube.

As a further improvement of the above technical solution, the filter layer is a medical foam member or a net sleeve having water permeability, water absorption property and no fiber shedding.

As a further improvement of the above technical solution, the side wall of the casing drainage hole is a long hole and is evenly distributed on the circumference of the circular section of the inner sleeve.

As a further improvement of the above technical solution, the built-in sleeve is an anti-condensation treated inner sleeve, the built-in sleeve joint is an anti-condensation treated inner sleeve joint, and the extension tube is an anti-condensation treated extension tube; The built-in sleeve is marked with a radiation developing line and a scale line of the mark length width.

The invention has the beneficial effects that: the invention provides a filter layer on the built-in drain tube and the built-in drain tube can be replaced, so that when the closed type high vacuum suction is applied, the negative pressure is evenly distributed in the filter through the filtration and attenuation pressure of the filter layer. The surface of the layer, such as: 1) neither infiltrate the large omentum, the intestinal cavity and other large tissues through the side hole of the drainage tube to cause catheter obstruction, and also avoid the high negative pressure directly acting on the organs or surgical fields such as the stomach, liver and the like. Complications such as perforation, necrosis, and wound hemorrhage caused by soft tissue; 2) Thin liquid and less rigid large-scale drainage material are divided and shaped into granular after higher negative pressure, after passing through the filter layer Entering the built-in drain tube, it is quickly sucked into the negative pressure bottle, and the hard bulky material that may block the drain tube is blocked by the filter layer and attached to the surface of the filter layer, and the drain tube is not easily blocked.

The built-in casing joint connects the built-in casing and the built-in drainage tube, and forms a completely closed system, which effectively avoids contact between the wound surface and the outside, and no air enters the drainage area, thereby avoiding problems such as surgical or traumatic wound retrograde infection.

The filter layer is a medical foam member or a net sleeve having water permeability, water absorption property and no fiber falling off. The filter layer is fully expanded after being absorbed by water, so as to fill the long hole provided in the built-in sleeve, which can be blocked and divided and shaped. The material is drained, and the drainage material is quickly entered into the drainage bottle under high negative pressure to achieve the effect of fully draining and closing the dead space of the wound in the body. When it is found that the drainage tube is blocked, and the built-in drainage tube needs to be replaced, the adhesion between the medical foam member or the net sleeve and the wound surface is avoided under the isolation of the built-in sleeve, thereby reducing the adhesion of the filter layer to the wound surface. The patient may have pain or cause bleeding from the wound when replacing the internal drainage tube. When the internal drainage tube is pulled out, the medical foam member or the net sleeve and the drainage material causing the clogging of the drainage tube are separated from the long hole of the built-in sleeve and then pulled out of the body, so that between the drainage side hole and the wound surface of the sleeve Separation, to achieve the purpose of completely unblocking the built-in casing, after replacing the new built-in drainage tube, the entire drainage tube achieves the goal of no blockage.

The invention can be used as a drainage tube in clinical medicine.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and examples.

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is a half cross-sectional view of the present invention;

3 is a schematic structural view of a built-in drainage tube in the present invention;

Figure 4 is a schematic structural view of a built-in sleeve in the present invention;

Fig. 5 is a schematic structural view of a built-in bushing in the present invention.

detailed description

The application of the present invention to drainage after surgery will be described in detail below with reference to the accompanying drawings.

1 to 5, a high-negative pressure non-clogging drainage tube includes a built-in sleeve 1 having a plurality of casing drainage side holes 11 on an outer surface, and a built-in drainage surface having a plurality of inner tube drainage side holes on the outer surface. The tube 2, the built-in drain tube 2 is jacketed with a built-in sleeve 1 , and the end surface of the built-in drain tube 2 provided with the inner tube drainage side hole is covered with a filter layer 6 , and the filter layer is fixed to the built-in drain tube by the elastic fixing sleeve 13 2, the built-in draft tube 2 can be detached from the built-in sleeve 1.

By providing the filter layer 6 on the built-in drain tube 2 and the built-in drain tube 2 is replaceable, the negative pressure is uniformly distributed on the surface of the filter layer 6 by the filtration and attenuation pressure of the filter layer 6 during closed high vacuum suction. One: 1) It will not inhale the obstruction of the large omentum, intestinal cavity and other large tissues through the side hole of the drainage tube, and also avoid the high negative pressure directly acting on the gastrointestinal, liver and other organs or surgical soft tissue. Complications such as perforation, necrosis, and wound hemorrhage; 2) The thin liquid and the less rigid large-scale drainage material are divided and shaped into a granular shape under the action of higher negative pressure, and enter the built-in drainage after passing through the filter layer 6. The tube 2 is quickly sucked into the negative pressure bottle, and the hard large exfoliated material which may block the drainage tube is blocked by the filter layer 6, and is attached to the surface of the filter layer 6, and the drainage tube is not easily clogged.

Further as a preferred embodiment, a built-in bushing coupling head 3 is provided, and the built-in bushing coupling head 3 is provided with a water inlet port 4 and an air inlet port 5, and the water inlet port 4 and the air inlet port 5 are connected to An inlet air inlet passage 15 provided on the inner casing coupling head 3, the inlet water inlet passage 15 being connectable with an inlet water inlet chamber 14 provided on the inner casing 1, the built-in casing coupling head The built-in undercut 12 is also fastened to the buckle groove 10 of the built-in drain tube 2 .

The built-in casing joint 3 couples the inner casing 1 and the built-in draft tube 2 and forms a completely closed system, which can be supplied with gas or/and from the inlet port 4 and the inlet port 5 to the enclosed space as needed. The liquid causes the material to be drained to be divided and shaped into a granular shape under the action of a higher negative pressure, and enters the built-in drainage tube after passing through the filter layer 6, thereby achieving rapid drainage, and effectively avoiding contact between the wound surface and the outside, and no air entering. The drainage area avoids problems such as surgical or traumatic wound retrograde infection.

Further as a preferred embodiment, the built-in drainage tube 2 is provided with an inner tube 7, a joint 8 and an extension tube 9, which is coupled to the drainage bottle. The inner tube drainage side hole is disposed on the inner tube 7, and the buckle groove 10 is disposed between the joint 8 and the extension tube 9, reinforcing the connection stability between the built-in draft tube 2 and the built-in sleeve 1.

Further, as a preferred embodiment, the filter layer 6 is a medical foam member or a net sleeve having water permeability, water absorption performance, and no fiber shedding. The medical foam member or the net cover has high water permeability, good water absorption, and no fiber shedding.

Further, as a preferred embodiment, the sleeve side opening 11 is a long hole which is evenly distributed on the circumference of the cross section of the built-in sleeve 1. In the present invention, it is preferable that the long hole is a U-shaped hole. A person skilled in the art can make various equivalent modifications or substitutions to the shape of the long hole without departing from the spirit of the invention, and such equivalent modifications or alternatives are included in the scope defined by the claims of the present application.

The filter layer is a medical foam member or a net sleeve which has strong water permeability, good water absorption performance and no fiber falling off. The filter layer is fully expanded after being absorbed by water, and the U-shaped hole provided in the built-in sleeve 1 can be filled and blocked, and can be blocked and divided. The material to be drained is shaped, and the drainage material is quickly entered into the drainage bottle under high negative pressure to achieve the effect of fully draining and closing the dead space of the wound in the body. When it is found that the drainage tube is blocked, the built-in drainage tube 2 needs to be replaced, and the adhesion between the medical foam member or the net sleeve and the wound surface is avoided under the isolation of the built-in sleeve 1, thereby reducing the adhesion of the filter layer to the wound surface. This may lead to pain in the patient's replacement of the built-in drainage tube 2 or may cause bleeding on the wound. When the internal drainage tube 2 is pulled out, the medical foam member or the net sleeve and the drainage material causing the clogging of the drainage tube are separated from the U-shaped hole of the built-in sleeve 1 and then pulled out of the body, so that the casing drainage side hole 11 Separation from the wound surface achieves the purpose of completely unblocking the built-in sleeve 1. After replacing the new built-in drain tube 2, the entire drain tube achieves the goal of no blockage. When the internal drainage tube 2 is pulled out, the water in the medical foam member or the net sleeve can be squeezed out to make it easy to separate from the wound surface, and the adhesion between the filter layer and the wound surface is reduced, and the patient replaces the built-in drainage tube 2 when the internal drainage tube 2 is replaced. pain.

Further, as a preferred embodiment, the built-in sleeve 1 is an anti-condensation treated inner sleeve, the inner sleeve joint 3 is an anti-condensation treated inner sleeve joint, and the extension tube 9 is an anti-condensation treated extension tube. The built-in sleeve 1 is marked with a radiation developing line and a scale line of the mark length width.

The above is a detailed description of the preferred embodiments of the present invention, but the invention is not limited to the embodiments, and various modifications and substitutions can be made by those skilled in the art without departing from the spirit of the invention. Such equivalent modifications or alternatives are intended to be included within the scope of the claims.

Claims

The utility model relates to a high negative pressure non-clogging drainage tube, which comprises a built-in sleeve (1) with a plurality of casing drainage side holes (11) on the outer surface and a built-in drainage tube with a plurality of inner tube drainage side holes on the outer surface (2) The built-in drainage tube (2) is jacketed with a built-in sleeve (1), characterized in that: the built-in drainage tube (2) is provided with an inner tube drainage side hole end surface coated with a filter layer (6), built-in drainage The tube (2) can be removed from the built-in sleeve (1).
The high negative pressure non-clogging drainage tube according to claim 1, further comprising a built-in sleeve coupling head (3), the built-in sleeve coupling head is provided with a water inlet interface (4) and an air inlet interface (5) The inlet inlet port (4) and the intake port (5) are connected to an inlet inlet passage (15) provided on the built-in casing coupling head (3), the inlet inlet passage ( 15) may be coupled to an inlet air inlet chamber (14) provided on the inner sleeve (1), and the inner sleeve coupling head (3) is further provided with a built-in buckle (12), the built-in buckle (12) Fasten the buckle groove (10) of the built-in drain tube (2).
The high negative pressure non-clogging drainage tube according to claim 2, wherein the built-in drainage tube (2) is provided with an inner tube (7), a joint (8) and an extension tube (9), and the inner tube is drained. The side holes are disposed on the inner tube (7), and the buckle groove (10) is disposed between the joint (8) and the extension tube (9).
The high negative pressure non-clogging drainage tube according to claim 1, 2 or 3, characterized in that the filtration layer (6) is a medical foam member or a net sleeve having water permeability, water absorption property and no fiber shedding.
The high negative pressure non-clogging drainage tube according to claim 4, characterized in that the sleeve drainage side hole (11) is a long hole and is evenly distributed on the circumference of the circular cross section of the built-in sleeve (1).
The high negative pressure non-clogging drainage tube according to claim 5, wherein the inner sleeve (1) is an anti-condensation treated inner sleeve, and the inner sleeve joint (3) is anticoagulated. The built-in sleeve joint, the extension tube (9) is an anti-coagulation-treated extension tube; the built-in sleeve (1) is marked with a radiation development line and a mark line having a mark length width.