CN103285495A

CN103285495A - Medical negative-pressure closed draining device

Info

Publication number: CN103285495A
Application number: CN2013101902111A
Authority: CN
Inventors: 肖云锋
Original assignee: Suzhou And Science & Technology Development Co Ltd
Current assignee: Suzhou And Science & Technology Development Co Ltd
Priority date: 2013-05-22
Filing date: 2013-05-22
Publication date: 2013-09-11

Abstract

The invention discloses a medical negative-pressure closed draining device for body-surface wound treatment. The medical negative-pressure closed draining device comprises porous wound dressing and a porous draining inner pipe arranged in the porous wound dressing; an adapting joint is arranged in the middle of the draining inner pipe. The top of the adapting joint is provided with a pressing cover covering on the surface of the porous wound dressing. The bottom of the pressing cover is connected with the draining inner pipe in an integrated manner. An upper hole communicated with outside is arranged on the pressing cover, and is communicated with the draining inner pipe. A top-end joint of a draining outer pipe with toothed blade is in a cone shape, and can be inserted and sealed in the upper hole. The tail end of the draining outer pipe is connected to a draining container and a negative-pressure source. A through hole communicating with the top-end joint of the draining outer pipe is arranged on the same. A cap capable of sealing the through hole is further arranged on the top-end joint of the draining outer pipe. By the aid of the medical negative-pressure closed draining device, the problem of air leakage of the medical negative-pressure closed draining device is solved completely, effect of negative-pressure drainage is improved, and structure is simple.

Description

A kind of medical negative pressure closed drainage device

Technical field

The present invention relates to a kind of medical negative pressure closed drainage device, more specifically relate to a kind of negative pressure drainage device that is applicable to that the body surface Wound treating is used.

Background technology

Negative-pressure sealed drainage technology (being called for short VSD), refer to cover or fill with the medical foam that contains drainage tube the wound surface of skin, soft tissue defects, the biological semipermeable membrane of reuse seals it, make it become a confined space, at last drainage tube is connected negative pressure source, promote a kind of brand-new Therapeutic Method of wound healing by controllable negative pressure.

Medical negative pressure closed drainage device, comprise the porous foam cushion, be arranged in the drainage tube in the porous foam cushion, the drainage tube that existing medical negative pressure closed drainage device adopts is one, a drainage tube part is arranged on and constitutes pipe in the drain in the porous foam cushion, a part is stretched out formation drain outer tube in the porous foam cushion, be arranged in the drain in the porous foam cushion and be distributed with a plurality of apertures on the pipe sidewall, be positioned at the outer drain outer tube of porous foam cushion and be provided with syringe pipe, the syringe pipe tail end stretches out from the sidewall of drain outer tube tail end, and the syringe pipe tail end also is provided with the seal cover that can cover syringe pipe; In the use, cover on the porous foam cushion with biological semipermeable membrane, with the porous foam cushion and place to manage in the drain in the porous foam cushion and be sealed on the human body together.

The major defect that the medical negative pressure closed drainage device of said structure form exists is: because drainage tube is an integral body, biological semipermeable membrane is with the porous foam cushion and place when pipe is sealed on the human body surface together in the drain in the porous foam cushion, unavoidably can there be certain clearance between drain outer tube outside the porous foam cushion, human body surface, the biological semipermeable membrane three, make drain outer tube and human body surface have poorly sealed situation, influenced the effect of negative pressure drainage.

Summary of the invention

The technical problem of solution required for the present invention is: a kind of good sealing property, simple in structure and be applicable to the medical negative pressure closed drainage device that the body surface Wound treating is used that has is provided.

For addressing the above problem, the technical solution used in the present invention is: described medical negative pressure closed drainage device, comprise the porous Wound dressing, and be arranged in pipe in the drain in the porous Wound dressing, the pipe sidewall is provided with a plurality of apertures in the drain, and the pipe middle part is provided with adapter coupling in drain; The adapter coupling top is provided with the gland that is covered in porous Wound dressing surface, and pipe connects as one in the bottom of gland and the drain, and gland is provided with the last jack that communicates with the external world, and last jack communicates with pipe in the drain; The top plug of drain outer tube is the cone shape of band dentation cutting edge, and the top plug can insert and be sealedly attached in the jack; The tail end of drain outer tube is connected with drainage container, and drainage container is connected with negative pressure source by conduit, also is provided with the through hole that runs through the top plug on the plug of the top of drain outer tube, also is provided with the block that can cover through hole on the plug of top.

Further, aforesaid a kind of medical negative pressure closed drainage device, wherein, pipe is many when evenly distributed in the drain, the drain outer tube of corresponding radical is connected by managing in adapter coupling and the drain with it, and the drain outer tube is connected with drainage container, negative pressure source by multiple-pass joint.

The invention has the beneficial effects as follows: the medical negative pressure closed drainage device that adopts said structure, during use, biological semipermeable membrane is with the porous Wound dressing, pipe and adapter coupling are enclosed on the human body surface in good condition in the drain, drain outer tube top plug only punctures the biological semipermeable membrane on the last jack that covers on the adapter coupling, can't destroy and cover porous Wound dressing and last jack biological semipermeable membrane on every side, the top plug inserts and is sealedly attached in the jack, thereby make between porous Wound dressing and the wound surface and keep good sealing property, thoroughly solve the gas leakage problem of medical negative pressure closed drainage device, improved the negative pressure drainage effect of medical negative pressure drainage device; In addition, the top plug of drain outer tube is provided with the through hole that runs through the top plug, when washing work, can directly normal saline be injected into from through hole in the drain in the pipe, need syringe pipe be set in addition in the drain outer tube, simplify the structure of drain outer tube.

Description of drawings

Fig. 1 is the structural representation of medical negative pressure closed drainage device of the present invention.

Fig. 2 is the inner connecting structure sketch map of pipe in drain outer tube and the drain.

Fig. 3 is the internal structure sketch map of adapter coupling.

Fig. 4 is the structural representation of drain outer tube top plug.

Fig. 5 is a structural representation that the drain outer tube is connected with straight coupling.

Fig. 6 is the structural representation that two drain outer tubes are connected with two pass joints.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment technical solutions according to the invention are described in further detail.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, medical negative pressure closed drainage device of the present invention, comprise porous Wound dressing 2, be arranged in pipe 3 in the drain in the porous Wound dressing 2, the sidewall of pipe 3 is evenly equipped with a plurality of apertures 31 in the drain, the middle part of pipe 3 is provided with adapter coupling 4 in drain, adapter coupling 4 tops are provided with the gland 42 that is covered in porous Wound dressing 2 surfaces, pipe 3 connects as one in the bottom of gland 42 and the drain, gland 42 is provided with the last jack 41 that communicates with the external world, and last jack 41 communicates with pipe 3 in the drain; The top plug 51 of drain outer tube 5 is the cone shape of band dentation cutting edge, and top plug 51 can insert and be sealedly attached in the jack 41; The tail end of drain outer tube 5 can be connected with drainage container 6 by straight coupling 61, drainage container 6 is connected with negative pressure source 9 by conduit 8, on the top of drain outer tube 5 plug 51, also be provided with the through hole 53 that runs through top plug 51, on top plug 51, also be provided with the block 52 that can cover through hole 53.

When carrying out negative pressure drainage work, porous Wound dressing 2 is placed on the wound surface, then biological semipermeable membrane 1 is covered on the porous Wound dressing 2, and porous Wound dressing 2 and adapter coupling 4 are sealed on the human body surface, wound surface is in the environment of a sealing; Cover through hole 53 with block 52, again the top plug 51 of drain outer tube 5 is punctured in biological semipermeable membrane 1 on the last jack 41 that covers on the adapter coupling 4, the insertion in the jack 41, drain outer tube 5 is connected with pipe 3 in the drain by adapter coupling 4, the fraction of gathering in the pipe 3 in the drain is gathered to drainage container 6 by drain outer tube 5, negative pressure source 9 provides negative pressure by conduit 8 for pipe 3 in the drain, can be in conduit 8 placement can allow gas passes through, intransitable macromolecular material of liquid, further avoided fraction to enter negative pressure source 9.After long-time use, dry the hardening of porous Wound dressing 2 meetings, need wash this moment, during flushing, close negative pressure source 9, negative pressure device is not worked, and opens the block 52 that is sealed on the through hole 53, uses syringe to draw normal saline, and by through hole 53 normal saline is injected in the drain in the pipe 3, normal saline is by managing the aperture 31 of 3 sidewalls to porous Wound dressing 2 diffusion inside in the drain, remove dirt and impurity on the wound surface simultaneously, be conducive to the healing of wound site, when porous Wound dressing 2 is in saturation, stop flushing work, capping upper cap 52 is opened negative pressure source 9, can begin normal negative pressure drainage work again.

When the wound surface area is big, can adopt pipe 3 uniform arrangements in the many drains, dock with pipe 3 in the drain by each adapter coupling 4 respectively with the drain outer tube 5 that pipe 3 radicals are corresponding in the drain, during actual the use, drain outer tube 5 can be connected with drainage container 6 by multiple-pass joint, be illustrated in figure 6 as the structural representation that two drain outer tubes are connected with two pass joints 62, during work, the fraction of gathering in the pipe 3 in the drain gathered to drainage container 6 by multiple-pass joint.

The medical negative pressure drainage device of said structure, during use, biological semipermeable membrane 1 is enclosed in porous Wound dressing 2 and adapter coupling 4 on the human body surface in good condition, the top plug 51 of drain outer tube 5 only punctures the biological semipermeable membrane 1 on the jack 41 that is incumbent on, can't destroy and cover porous Wound dressing 2 and last jack 41 biological semipermeable membrane 1 on every side, top plug 51 inserts and is sealedly attached in the jack 41, thereby make between porous Wound dressing 2 and the wound surface and keep good sealing property, thoroughly solve the gas leakage problem of medical negative pressure closed drainage device, improved the negative pressure drainage effect of medical negative pressure drainage device; In addition, the top plug 51 of drain outer tube 5 is provided with the through hole 53 that runs through top plug 51, when washing work, can directly normal saline be injected into from through hole 53 and manage 3 in the drain, need syringe pipe be set in addition in drain outer tube 5, simplify the structure of drain outer tube 5.

Claims

1. medical negative pressure closed drainage device, comprise the porous Wound dressing, be arranged in pipe in the drain in the porous Wound dressing, the pipe sidewall is provided with a plurality of apertures in the drain, it is characterized in that: the pipe middle part is provided with adapter coupling in drain, and the adapter coupling top is provided with the gland that is covered in porous Wound dressing surface, and pipe connects as one in the bottom of gland and the drain, gland is provided with the last jack that communicates with the external world, and last jack communicates with pipe in the drain; The top plug of drain outer tube is the cone shape of band dentation cutting edge, and the top plug can insert and be sealedly attached in the jack; The tail end of drain outer tube is connected with drainage container, and drainage container is connected with negative pressure source by conduit, also is provided with the through hole that runs through the top plug on the plug of the top of drain outer tube, also is provided with the block that can cover through hole on the plug of top.

2. according to the described a kind of medical negative pressure closed drainage device of claim 1, it is characterized in that: pipe is many when evenly distributed in the drain, the drain outer tube of corresponding radical is connected by managing in adapter coupling and the drain with it, and the drain outer tube is connected with drainage container, negative pressure source by multiple-pass joint.