CN201618293U

CN201618293U - Critical negative pressure washing drainage tube

Info

Publication number: CN201618293U
Application number: CN2010201116939U
Authority: CN
Inventors: 朱四强; 庞明
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-10
Filing date: 2010-02-10
Publication date: 2010-11-03
Anticipated expiration: 2020-02-10

Abstract

The utility model provides a critical negative pressure washing drainage tube, which can fully drain and continually clear, does not have damage for tissues during the process of negative pressure drainage, and has the function of washing. The critical negative pressure washing drainage tube comprises three parts which are a double-cavity outer casing (1), an air filter (2) and a suction tube (3), wherein a drainage region is kept in a critical negative pressure state through guiding in air, continually and fully drains, and does not adsorb the tissues to cause block or damage. Pollution sources can be prevented from entering bodies along with the air to cause secondary pollution through using the air filter (2). The critical negative pressure washing drainage tube integrates a washing tube (4) into an outer casing (1), thereby enhancing the dilution effect of washing liquid to filth, further increasing the drainage effect. The utility model provides a medical critical negative pressure washing drainage tube, which can be used to drain cavity gaps of abdominal cavities and subcutaneous and the like, and has the advantages of steady performance, constant drainage, simple and convenient operation, small volume, light weight and the like.

Description

Critical negative pressure irrigation drainage tube

Technical field

This utility model relates to the equipment special of wound surface drain between a kind of medical abdominal cavity or tissue.

Background technology

The general surgery drainage tube is mainly used in the drain of reconstruction of digestive tract postoperative, liver, mammary gland, abscess wound surface.The applied drainage tube of clinical medicine is broadly divided into two types of simple drain and negative pressure drainages at present, all can add washing capacity separately.

Finishing of simple drainage tube drain process, the interior end pressure of human body that depends on drainage tube is greater than external end.In drain whole latter stage, still there is a certain amount of soiling solution in most cases in the body, but because of no pressure differential, so the drain pause; Further put aside and the formation pressure differential until dirt, once more to external drainage, still can keep a small amount of hydrops in the final body, obviously this is a kind of inadequate drainage way.Simple in addition drain meets thickness, when being rich in soiling solution such as residue, drainage effect significantly descends.

Negative pressure drainage can continue to provide pressure differential, but consequently not only the soiling solution sucking-off, almost each negative pressure drainage all can be adsorbed in the tube wall opening with drain zone body tissue, causes the drain process to pause.Can reduce obstruction though have the drainage tube of washing capacity, under the situation of inadequate drainage, the adverse consequences that can bring seroperitoneum or infection to send out usually.When especially using simultaneously with negative pressure, have only when body inner product hydraulic coupling big enough push organizing of being adsorbed open the time hydrops just can be drained external, so its drainage effect may not be better than simple drain in some cases.

At present the drainage tube that uses is because the deficiency of drain principle, and side opening, tube wall strength design owe rationally to be difficult for reaching ideal drainage effect, and situations such as infection chamber that a large amount of dunghills exist or digestive tract fistula are all the more so handling.So a kind of drainage tube that can continue unobstructed, abundant drain doctor and patient just is needed.And medical critical negative pressure irrigation drainage tube can satisfy above demand.

Patent CN2092339U has proposed a kind of drainage tube of exercising similar functions, compares this patent innovation part with this patent and is syringe pipe and trocar sheath integrated design, thereby strengthened the structure of drainage tube, and the reliability of irrigation and drainage is strengthened greatly; Also can be used for the break-through seal wire, make the periodic replacement drainage tube become simply, safety.In addition, between trocar sheath and suction catheter, be provided with the dry type air filter, prevent polluter, avoid disinfectant solution " cleaning " air and the uncertainty that causes with causing superinfection in the air admission body.This uncertainty shows as: 1, air and disinfectant solution are short time of contact, and Disinfection Effect is uncertain.2, the disinfectant solution out-of-service time is uncertain.3, disinfectant solution physicochemical property instability imports in the body with inhaled air, and is uncertain to the damaging action of tissue.In addition, suction catheter slidably is convenient to clean relax and is led to, and air filter and suction catheter are all replaceable, effectively guarantee its aseptic.

The utility model content

At the deficiency of traditional drainage mode, the technical problems to be solved in the utility model provides the abundant drain of a kind of energy, continues unobstructed, the drainage tube of negative pressure drainage process to organizing not damaged, having washing capacity.

For solving the problems of the technologies described above, the utility model proposes a kind of medical critical negative pressure irrigation and drainage integral type drainage tube, form by trocar sheath, suction catheter, air filter three parts.Outer casing tube body the inner has the side opening of a plurality of appropriate diameter, the tube head sealing, and syringe pipe is integrated into the trocar sheath tube wall; The sealing of outer casing tube body outer end: suction catheter passes air filter and stretches in the trocar sheath, and suction catheter continues to execute vacuum suction.

Critical negative pressure irrigation drainage tube has changed in traditional negative pressure drainage the mode to the whole negative pressure of drainage tube tube chamber, change into the inner inside of outer casing tube body and apply negative pressure, importing air makes the drain zone keep critical negative pressure state, assurance drain zone dirt is removed at any time, and this attached wall of zone inner tissue of attraction within reason avoids blocking drainage tube and damaged tissue.This utility model is provided with the dry type air filter between trocar sheath and suction catheter, prevent polluter first with causing superinfection in the air admission body, second avoids disinfectant solution " cleaning " air and the uncertainty that causes.This utility model is realized the drainage flow maximization by trocar sheath side opening aperture is optimized design under the prerequisite of avoiding ill effects such as tissue embedding, obstruction pipeline and damaged tissue.This utility model is integrated into trocar sheath with syringe pipe, has strengthened the dilution effect of flushing liquor to dirt, and then has strengthened drainage effect, also plays simultaneously to suppress original infection, alleviate effect such as Digestive system corrosion; This integration has improved the stability of irrigation and drainage structural system, has also reduced and has used the wound of a plurality of drainage tubes to human body simultaneously.

The medical critical negative pressure irrigation drainage tube that the utility model proposes can be used for the drain of abdominal cavity lacuna, has easy and simple to handle, advantages such as volume is little, in light weight, stable performance, sustainable drain, is easy to realize abdominal cavity, abscess, mammary gland etc. are located the drain hydrops.Especially under intestinal fistula, pancreas fistula situation, has excellent therapeutic effect.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the critical negative pressure irrigation drainage tube of a this utility model structure chart

Fig. 2 is the cross section of the critical negative pressure irrigation drainage tube of this utility model trocar sheath

The specific embodiment

This utility model is made up of trocar sheath 1, air filter 2, suction catheter 3 three parts.

Trocar sheath 1 adopts the two-chamber design, comprises flushing chamber 7 and drainage lumens 8.Trocar sheath 1 body the inner has the side opening 6 of a plurality of appropriate diameter, the inner sealing of drainage lumens 8 bodies.Syringe pipe joint 4 one ends access in the flushing chamber 7 of trocar sheath 1, flushing chamber 7 end opening in trocar sheath 1 body, and syringe pipe joint 4 other end port standardized designs can connect existing transfusion device.Trocar sheath 1 external end is by sealing-plug 5 sealings, and air enters drainage lumens 8 after must filtering via air filter 2.Suction catheter 3 body the inners are passed sealing-plug 5 and are stretched in the drainage lumens 8 of trocar sheath 1, and suction catheter 3 external ends can connect the continuous negative pressure suction device.

Claims

1. a critical negative pressure irrigation drainage tube is characterized in that: be made up of trocar sheath (1), air filter (2), suction catheter (3) three parts; Trocar sheath (1) is respectively flushing chamber (7) and drainage lumens (8) for double cavity structure designs; Trocar sheath (1) body the inner has some side openings (6).

2. critical negative pressure irrigation drainage tube according to claim 1 is characterized in that: the external end of described trocar sheath (1) has sealing-plug (5).