CN101920058A - Medical sucking liquid receiver - Google Patents

Abstract

The invention relates to a medical sucking liquid receiver, which comprises a first chamber and a second chamber, wherein the first chamber and the second chamber are communicated; the first chamber is provided with a connecting device, an actuator of the connecting device and an opening part; the second chamber is internally provided with a saccule part and an air-releasing mechanism; at least one end of the saccule part is open in air, and the open end is assembled in the second chamber; the air-releasing mechanism comprises two one-way exhaust valves and an elastomer with an inner space; the compression resilience of the elastomer is set to be larger than the expansion convergent force of the saccule part, so that air in the sucking liquid receiver can be exhausted in air by repeated compression and restoration of the elastomer so as to ensure the interior of the container to be under negative pressure and expand the saccule part in the second chamber; and as the convergent force of the saccule part is maintained at a certain negative pressure in a long time, the pressure residual in the first chamber which has an initial pressure of minus 200mmHg is maintained within minus 80+/-10mmHg after 200mL of water is sucked in the first chamber.

Description

Medical sucking liquid collector

Technical field

The present invention relates in order to attract to eject the closed-end medical sucking liquid collector that uses, can carry of being close to of creating intraluminal tissue from the transudate (body fluid) and the realization in human body wound chamber.

Background technology

In the past, known in order to attract to eject transudate (body fluid) and the use medical sucking liquid collector of creating the chamber from human body.In this case, be used for that transudate is discharged inductive pipe and insert the wound intracavity and is connected with attracting liquid trap, the negative pressure that produces in attracting liquid trap makes the transudate of wound intracavity assemble, be stored in the attraction liquid trap.But, in known attraction liquid trap, also have various shortcomings aspect its mechanism or the effect.

For making the mechanism that attracts to produce in the liquid trap negative pressure, if the mechanism due to is so far carried out differentiation roughly then can be categorized as described below three types.

First type is the so-called mechanism that is called as vacuum tank, and the parts that in advance inside of inflexible hermetic container carried out decompression are provided.Such mechanism has following advantage: have to connect and go up the convenience that pipe just can directly use, be gastight structure and pollute few, by on rigid container, engraving scale, can measure the liquid collecting amount accurately at ordinary times, but also there is following shortcoming, promptly, along with transudate accumulates in the container because of predefined vacuum degree, the shortcoming that the captivation straight line descends.Generally speaking, in order to realize creating being close to accelerate the healing of wound portion of intraluminal tissue, the method that intracavity is remained certain negative pressure is effective.And, the obturation that the rapid negative pressure reduction during the attraction of transudate is discharged can be brought out indwelling tube, thus can't be used for later attraction discharge opeing.Therefore, the fatal shortcoming of the main attractive rapid reduction of this type.

Thereby second type is its internal volume to be dwindled the retractile container compression of rubber-like in advance, utilizes the elastic restoring force of container to make generation negative pressure in the container, and then attracts the mechanism of liquid collecting.This type constitution is fairly simple, for example has the advantage that can make the container of corrugated tube shape by the blow molding cheapness in large quantities, and the reduction of above-mentioned captivation is also so remarkable unlike first type, but also not necessarily can meet the requirements.And, because the container self-deformation is freely, in use, if be subjected to certain external pressure in the time of for example when carrying walking or on patient's bed, then thereby container is compressed negative pressure and significantly reduces, sometimes even become malleation, exist discharge, the anastasis of liquid collecting is to the danger of creating intracavity.Further,, therefore lack the mensuration precision because container self is an elastomer, need to use other mensuration container even on container, engrave scale for the mensuration of liquid collecting amount.And this generally speaking medical sucking device is continuing use 2～3, maximum about 7 days after the operation, is accompanied by towards the gas leakage or the discharge opeing in wound chamber and must carries out the recompression suction pump for several times to give the operation of captivation.But, for this type, when recompression, need to discard the waste liquid of collecting before this and will empty in the container, add the mensuration of above-mentioned liquid collecting amount, the nurse's in ward management labour is very big.

The third type is to be built-in with the elastomeric element (sacculus or diaphragm) that expands and shrink freely in rigid container, and by supplying gas or the method for mechanics expands this elastomeric element inside, follow and make the rigid container aerofluxus therewith, and then the power by elastic components contract makes and produces negative pressure in the container, thereby attracts the mechanism of liquid collecting.(for example Japanese kokai publication sho 48-65791 communique, Japanese kokai publication sho 51-136395 communique, Japanese Patent Publication 55-15220 communique and the previously disclosed Japanese Patent Application of the inventor are clear 58-51466 number) this type is by selecting suitable elastomeric element, there is transudate can not cause that also rapid negative pressure reduces even in container, assemble, in attracting liquid collecting, can keep roughly certain suction pressure always, and, therefore have portable advantage because container is a rigid body.But, identical with second type, in continue using for elastomeric element is expanded once again to give captivation, need temporary transient open container with the discarded waste liquid of collecting, and, because elastomeric element is built in the container, therefore (the expansible state of elastomeric element) can't carry out lifting rate mensuration in attraction, if exist temporary transient open container to make elastomeric element shrink the inconvenience that just can't measure fully.And,, then exist to become malleation, transudate adverse current in the container to the danger of creating intracavity if do not make rigid container that elastomeric element is expanded owing to maloperation.

And, for the pipe of inducing of transudate (body fluid), commercially available have have various in the product of external diameters, cross-sectional configuration and shape.In the past induce pipe for shape shown in Figure 4, form under the situation at the storage position of inserting body fluid body fluid in the fore-end of pipe and side opening part inflow pipe and the structure that is discharged from.Be accompanied by the use of these pipes and have problems and be following point: before patient's wound portion cured, soma grew up in the side opening of pipe, not only stops up side opening, and caused soma by drawing crack extracting Guan Shihui, brought very big pain to the patient.

Summary of the invention

The present invention is in order to eliminate the various restrictions in the above-mentioned medical sucking liquid collector in the past, discuss through research with keen determination and finally to finish, its purpose is the portable type medical sucking liquid collector that provides following: the liquid collecting amount that suction pressure can not be accompanied by from the transudate in wound chamber increases and significantly reduces, the suction pressure that has constant always, can not occur towards the danger of wound portion adverse current because of the accident in using, rigid container by carrying convenience constitutes, can directly read lifting rate accurately at ordinary times, and, compare health and operability excellence.

And, another object of the present invention is, eliminate above-mentioned in the past induce problem in the pipe, provide and have the following medical sucking liquid collector of inducing pipe: do not organize to enter in the pipe, be difficult to stop up, even suppose in inner chamber to produce stop up this lumen passageway also can bypass to other inner chamber, further, the pull-out resistance when the patient extracts is few, injury is little, safe and reliable.

That is, the present invention is following medical sucking liquid collector, and described medical sucking liquid collector is by constituting with the lower part: first Room, and it attracts to store the transudate (body fluid) from human body wound portion; And second Room, the contractility that its utilization is arranged on the balloon member that the expansion in the rigid container shrinks freely produces captivation, first Room and second Room negotiable gas ground is communicated with, on first Room, be provided with and be used to connect the connecting device of inducing pipe of body fluid and the opening and closing device of this device, and the peristome that is used for parts with cover that the body fluid that is stored in this chamber is discharged, in second Room, be built-in with the balloon member that expands and shrink freely, and, also be provided with and be used for this indoor exhaust gear that reduces pressure, at least one end opening of balloon member is to atmosphere, and under the state of the inner space of this balloon member and atmospheric gas circulation, be assembled in second indoor, exhaust gear is made of two one-way exhaust valves and the elastomer with inner space, a valve only engages with second Room towards the mobile mode in elastomeric inner space from second chamber interior with gas, another valve with gas only the mode from elastomeric inner space towards Atmospheric Flow dispose, this elastomeric compression recovery power is set for bigger than the expansion contractility of balloon member, thereby will attract air in the liquid trap to be expelled to make in the atmosphere by making this elastomer compression recovery repeatedly in the container for negative pressure and the second indoor balloon member is expanded, utilize the contractility of balloon member to keep certain negative pressure always, it is characterized in that, the first indoor pressure from the residual pressure of initial pressure-200mmHg when having attracted 200mL water in the scope of-80 ± 10mmHg.

And, the described pipe of inducing is made of external indwelling portion and the intracorporeal indwelling portion that becomes liquid collecting portion, described external indwelling portion is made of straight tube, described intracorporeal indwelling portion is connected the front end of external indwelling portion, this intracorporeal indwelling portion has at least one inner chamber, on outer the facing the wall and meditating of described each inner chamber, there is a part of thinner wall section, on this thinner wall section and at the length direction of pipe, is provided with a joint-cutting.

Description of drawings

Fig. 1 is the outside drawing that an embodiment of attraction liquid trap involved in the present invention is shown.

Fig. 2 is the cutaway view of Fig. 1.

Fig. 3 is other the cutaway view of embodiment that attraction liquid trap involved in the present invention is shown.

Fig. 4 is the figure that induces pipe that band side opening in the past is shown, and (a) is the front end front view, (b) is side view.

Fig. 5 illustrates the figure that induces pipe that becomes one embodiment of the present of invention, (a) is front end front view, side view, (b) is the cutaway view along A-A ' line.

Fig. 6 is the figure that the expression that relates to of embodiments of the invention attracts curve.

Symbol description is as follows:

1... liquid-collecting bottle; 2... transudate is induced pipe; 3... leakage fluid dram; 5... stop rib; 6... scale; 7... lid; 9... rope; 11... chimb; 13... ring; 15... liquid collecting hole; 17... pressing plate; 19... liquid collecting pedestal; 21... projection; 23... flange; 25... link mouth; 27... connecting piece; 29... magic tape; 31... suction bottle; 33... medicated cap; 34... blow vent; 35... screw thread; 37... gasket material; 38... balloon lumen; 39... sacculus; 40... the inner space of ball; 41... ball; 43... air entry; 44... Non-slip material; 45... inlet valve adapter; 47... one-way exhaust valve; 49... rubber strip; 51... suction hole; 53... one-way exhaust valve; 55... stop part; 57... ball; 58... pore; 59... flange; 61... connect apertures; 63... link mouth; 65... magic tape; 80... liquid collecting room; 82... suction chamber; 84... connected entrance; 202... joint-cutting; 203... inner chamber; 204... inwall; 205... face the wall and meditate outward; 206... interior cinclides; 207... thinner wall section; 208... heavy section; 211... intracorporeal indwelling portion; 212... external indwelling portion.

The specific embodiment

Below, describe with reference to the details of accompanying drawing the medical sucking liquid collector that the present invention relates to.

Fig. 1 illustrates the outside drawing of the representational embodiment of attraction liquid trap involved in the present invention.Fig. 2 is the cross-sectional configuration figure of Fig. 1, and Fig. 3 is the cross-sectional configuration figure of other embodiment.Attraction liquid trap of the present invention is made of two chambers that gas fluidly is communicated with, for example can be as shown in Figure 2 constitute by the independently independent respectively rigid container of liquid-collecting bottle 1 and suction bottle 31, thereby utilize connecting piece 27 connection liquid-collecting bottles 1 and suction bottle 31 negotiable gas ground to be communicated with, and, also can be as shown in Figure 3 constitute by the rigid container that liquid collecting room 80 and suction chamber 82 is configured as one, be communicated with thereby connected entrance 84 negotiable gas ground are set on the spaced walls between liquid collecting room 80 and the suction chamber 82, also can replace connected entrance is set and similarly use connecting piece to be connected with the example of Fig. 2 and make its connection.

In the example of Fig. 2, rigid container can be any in circular, spherical, square, get together compactly for the ease of portably using expectation, the easier amount of liquid to the transudate collected of microscler liquid-collecting bottle 1 is measured, and, more can make with the spherical or rectangular build that contacts of inwall when suction bottle 31 expands for doing one's utmost to reduce built-in sacculus 39 expanded under the shape of sacculus 39 at nature, is effective to voltage regulation function.And the example that is divided into Fig. 3 of two chambers in the integrally formed rigid container is also preferably considered above-mentioned shape.

Rigid container among the present invention is by shapings such as rigid plastics, glass, for swelling state of the character of the transudate confirming to collect, amount, sacculus etc., expectation for transparent or be at least translucent, when using uses such as having the walking of carrying the material of survivable obdurability and light weight for example hard polyethylene resin etc. be suitable.

Next, according to Fig. 2 the details of each several part is described.

Liquid-collecting bottle 1 collection storage is from the waste liquid in wound chamber, and suction bottle 31 is suction pressure generators and has the function that the suction pressure of being arranged to after the negative pressure is adjusted.Be provided with on the liquid-collecting bottle 1 transudate induce pipe 2 connecting device, the peristome (leakage fluid dram 3) that the transudate of storing is discharged and and suction bottle 31 between the binding road of gas communication, the sacculus 39 that being built-in with in suction bottle 31 to expand shrinks, and be provided with to carry out in the suction pump deflated mechanism and and liquid-collecting bottle 1 between the erecting device of connecting piece 27 of gas communication.And, in order to carry out the metering of transudate, be desirably in the front printing of liquid-collecting bottle 1 or represent scale 6 with the convex-concave line, in use can read the liquid collecting amount at any time thus.

What is called is used to connect the connecting device that the transudate that is arranged on the liquid-collecting bottle 1 is induced pipe 2, be meant have with transudate induce pipe 2 airtightly, the gas-liquid flow earthing is connected the device of the mechanism that attracts liquid trap, for example liquid collecting hole 15 forms the structure on the peristome of the liquid collecting pedestal 19 that is located at liquid-collecting bottle 1, and takes the modes of inducing pipe 2 to insert in liquid collecting holes 15 inner chambers transudate.Liquid collecting hole 15 is adhesively fixed on liquid collecting pedestal 19 peristomes airtightly, and has sleeve 23 in the inboard of liquid-collecting bottle 1, and this sleeve 23 is entrenched on the wall of liquid collecting pedestal 19 to be strengthened.And, projection 21 than sleeve also forward end prolong 2～30mm, the transudate of inducing pipe 2 and liquid collecting hole 15 to attract via transudate directly falls rather than flows along the inwall of liquid-collecting bottle 1.

And, on liquid collecting hole 15, be provided with opening and closing device.This is the opening and closing device that carries out locking in being used for container when attracting liquid trap to be set to attract state, and, be to be used to prevent that when discharge opeing is operated transudate is accompanied by that negative pressure discharges and towards the opening and closing device of wound portion adverse current, and be the mechanism that the gas-liquid flow earthing opens and closes connecting device.For example be on being located at liquid collecting hole 15 pressing plate 17 pass through the mechanism that makes it slide thereby liquid collecting hole 15 inner chamber conquassation are made its obturation or it is opened wide.

For connect apertures 15, the consideration transudate induces the insertion easness of pipe 2, the difficult generation to break away from or the binding force of leakage and the slide of pressing plate 17, the material with elasticity and flexibility of rubber or flexible plastic and so on is used in expectation, and pressing plate 17 is contemplated to be plastics but has the such inflexible material of metal.

And, can not be opening and closing device to be installed in to be used to connect the connecting device that transudate is induced pipe as shown in Figure 2 yet, for example also can be to induce pipe and connecting device to be connected form on the such opening and closing device of two-way cock valve transudate, and, also can be that opening and closing device directly keeps being installed in transudate and induces on the pipe 2.Focus on, so long as can connect the pipe of inducing transudate from wound portion airtightly, and opening and closing operations easily, easily assembly and disassembly can fixed reliably mechanism get final product.

What is called is arranged on being used on the liquid-collecting bottle 1 and discharges the peristome of the parts with cover of body fluid, for example be leakage fluid dram 3 and lid 7 structures that constitute by liquid-collecting bottle 1, so long as when make cover 7 liquid-collecting bottles when being entrenched on the leakage fluid dram 3,1 quilt airtight airtightly, can easily the structure that is collected in the body fluid discharge in the liquid-collecting bottle 1 be got final product when taking off when covering 7.As operculum 7 as shown in Figure 1 an end be fixed on the liquid-collecting bottle 1, take off also and can not break away from even then will cover 7 from liquid-collecting bottle, be preferred in the use.

And, on liquid-collecting bottle 1, be provided with binding mouth 25, be connected with the suction bottle 31 negotiable gas ground of following narration by connecting piece 27.

Balloon member for the expansion that is built in the suction bottle 31 shrinks freely is installed in sacculus 39 on the medicated cap 33 airtightly, and to be screwed on the screw thread 35 of lower openings portion that mode is assemblied in suction bottle 31.At this moment, in order to make suction bottle 31 and medicated cap 33 chimeric airtightly, preferably use gasket material 37.Be screwed on the formula medicated cap 33 if as present embodiment (Fig. 2), sacculus 39 is installed in, then there is the advantage as required sacculus 39 to be unloaded and suction bottle 31 inside are washed, but, also can reach purpose of the present invention even sacculus 39 is fixedly mounted on the suction chamber.And, as making sacculus 39 be built in mode in the suction bottle 31, be installed in the bottom of bottle in the present embodiment, even but be installed on the top or side of bottle, on function also without any influence.

And balloon lumen 38 only is communicated with atmosphere always by the blow vent 34 of medicated cap 33.This blow vent 34 is gateways that sacculus 39 expands or shrinks required air, is the pore below the φ 5mm though the bore in hole also unrestrictedly, is preferably formed.

For being located at the exhaust gear that is used on the suction bottle 31 reducing pressure in the bottle, being equipped with two one- way exhaust valves 47 and 53 having on the elastomer of inner space (being ball 41 in the present embodiment), and being fixed on the air entry 43 of suction bottle 31.Elastomeric shape with inner space can be spherical, also can be bellows, in shape and unrestricted.One- way exhaust valve 47,53 can use the valve of any structure so long as gas only can flow and the parts of valve constitution that can not adverse current get final product towards a direction, in the present embodiment and unrestrictedly.

Connect the one-way exhaust valve 47 of the inner space 40 of ball 41 and suction bottle 31 inside so long as only the air of suction bottle 31 inside is discharged towards the inner space 40 of ball and can not cause that the structure of adverse current gets final product, in the present embodiment, inlet valve adapter 45 is close on the air entry 43 of bottle, be provided with more than one suction hole 51 on the top cylinder portion side of inlet valve adapter, this suction hole covers locking airtightly by rubber strip 49 always.

On ball 41 and side that atmosphere contacts, be provided with one-way exhaust valve 53.This one-way exhaust valve 53 is so long as only be expelled to the air of the inner space 40 of ball atmosphere and can not cause that the valve of adverse current gets final product, in the present embodiment, in the bottom has the flange 59 of pore 58, be inserted with ball 57, and in flange top, be provided with the stop part 55 of ball.During use, if with finger compressing ball 41, thereby then ball is pressurized and ball 57 is boosted by the air of conquassation inner space 40, thereby the air of inner space 40 is expelled to atmosphere.At this moment, oppressing suction hole 51 thereby one-way exhaust valve 47 is pressurizeed by rubber strip 49 becomes blocking, and the air in the inner space 40 can not flow into the inside of suction bottle 31.If discharge compressing to ball 41, then inner space 40 becomes negative pressure by the elastic return expansion of ball, thereby ball 47 is attracted and closes pore 58 one-way exhaust valves 53 by locking, and the air of suction bottle 31 inside boosts rubber strip 49 and flow in the ball inner space 40 by attracting hole 51.Therefore, if carry out operation that the compressing of ball discharges repeatedly then the air of the inside of suction bottle 31 is discharged to atmosphere by one- way exhaust valve 47 and 53, thereby will discharge by the air in the bottle that outer wall surrounded of the inwall of suction bottle and sacculus 39.

The compression recovery power of ball 41 employed materials is set for bigger than the expansion contractility of sacculus 39 employed materials, discharges ball 41 by oppressing repeatedly, and sacculus 39 expands in the inside of suction bottle 31.Carry out inflation or shrink required inflow or discharge by blow vent 34 towards the sacculus gas inside.

On suction bottle 31, also be provided with connect apertures 61, be connected with liquid-collecting bottle 1 negotiable gas ground by connecting piece 27.Connecting piece 27 is inserted the structure on the connect apertures 61 airtightly then when only needing that liquid-collecting bottle 1 is replaced by new liquid-collecting bottle, can change simply if be pre-formed, and existence can be used repeatedly and comprise the advantage of ball 41 grades at interior suction bottle 31.And, as present embodiment (Fig. 2), using under the situation of two separate bottles, utilize connecting piece 27 to connect liquid-collecting bottle 1 and suction bottle 31, if further on the side of two bottles, install respectively the magic tape 29 that can dismantle and 65 and make its in conjunction with could handle safely, and be easy to carry etc.And, under the situation of carrying, two bottledly can be gone in the bag and with lifting rope etc. to be suspended on the human body.

When using the related medical sucking liquid collector of present embodiment, lid 7 is fixed on the outlet 3 of liquid-collecting bottle 1 airtightly, induce pipe 2 to insert liquid collecting holes 15 transudate that passes to the wound chamber of human body, and utilize the bottom of the inaccessible liquid collecting hole 15 of pressing plate 17 compressings.Further, connecting piece 27 is inserted the connect apertures 61 of suction bottles 31, with two negotiable gases of bottle link together.After above preparation finishes, use the operation of finger compressing, release ball 41 repeatedly, then the air of suction bottle 31 liquid-collecting bottle 1 inside inner and that link to each other by connecting piece is discharged to atmosphere by one- way exhaust valve 47 and 53, becomes negative pressure in two bottles.Along with strengthening sacculus 39, vacuum degree in suction bottle 1, expands.When extremely almost being full of the suction bottle inner chamber, inflation stops operation with finger compressing, release ball 41.Under this state, in attracting liquid trap, produce the negative pressure corresponding with the contractility of sacculus 39.If follow the obturation that sliding clamp 17 is opened liquid-collecting bottle 15, then can utilize the negative pressure in the bottle to induce pipe 2 to make from creating the liquid attraction of oozing out in the chamber and falling in the liquid-collecting bottle 1 by transudate.For the negative pressure in the bottle, even collection storage has body fluid also can remain the roughly certain level corresponding with the contractility of sacculus 39, can not cause as only being the collection storage that is accompanied by body fluid the Dewar bottle and situation that the vacuum degree straight line is descended can be brought into play excellent effect in treatment.

Remain the negative pressure of roughly certain level for this, expectation has some variations, can suitably selecting according to the position of case or use, for example present embodiment as shown in Figure 6 like this, as higher setting, initial pressure is-200mmHg, and keep residual pressure during the transudate of attraction storage 100mL to 300mL and be the negative pressure in the scope of-80 ± 10mmHg, and, as lower setting, initial pressure is-100mmHg, and the situation of keeping the negative pressure in the scope that residual pressure is-40 ± 10mmHg during the transudate of attraction storage 100mL to 300mL is more effective.

And, in the treatment way, when thereby sacculus 39 shrinks captivation when disappearing, need make once more sacculus 39 to expand because of the air from the wound chamber spills, the operation that only utilizes pressing plate 17 inaccessible liquid collecting holes 17 and use the finger compressing to discharge ball 41 repeatedly gets final product, the operability excellence, and owing to can utilize the block sytem operation to attract liquid trap integral body all the time, therefore existing to provide does not have antibacterial to invade the advantage of the medical sucking liquid collector of dangerous safety and sanitation.And, because the liquid-collecting bottle 1 of body fluid is independent with the captivation generator, therefore have following convenience, promptly, medical practitioner at any time can both directly read the lifting rate of body fluid as required in treatment.

Below, be that the basis is described in detail the pipe of inducing of the present invention with Fig. 5.

Fig. 5 illustrates the figure that induces an embodiment of pipe based on of the present invention.As shown in Figure 5, the pipe 2 of inducing of the present invention is made of external indwelling portion 212 and intracorporeal indwelling portion 211, and described external indwelling portion 212 is made of straight tube, and described intracorporeal indwelling portion 211 is connected the leading section of external indwelling tube 212, becomes the liquid collecting portion of collecting body fluid.The external diameter of intracorporeal indwelling portion 211 equates with the straight tube of external indwelling portion 212, and facing the wall and meditating at each inner chamber 203 outer is provided with joint-cutting 202 on 205, and, on separating inner chamber 203 inwall 204 each other, be provided with cinclides 206 in one or more.

Face the wall and meditate 205 wall thickness of intracorporeal indwelling portion 211 outer is described in detail, in order to make joint-cutting 202 can easily utilize the suction pressure of degree of 40～60mmHg of suction pump etc. of low pressure and opening, the wall thickness of joint-cutting 202 residing thinner wall section 207 is below the 0.5mm, the width of the thinner wall section 207 on preferred outer 205 circumference of facing the wall and meditating is 0.5～2.0mm, further, in order to keep draining inner chamber 203 and shape, be preferably the structure that increases towards the circumference wall thickness of inwall 204 along from joint-cutting 202, preferably the wall thickness of its heavy section 208 is 2mm to the maximum.Joint-cutting 202 has the intensity of locking during non-attraction, joint-cutting 202 is opened during attraction, and, take into account and do not organize and can enter by joint-cutting 202, only blood, body fluid are attracted to the rear end more equably from the front end of intracorporeal indwelling portion 211, thus, the wall thickness of further preferred thinner wall section 207 is 0.2～0.3mm, and the width of the thinner wall section 207 on 205 circumference of facing the wall and meditating outward is the degree of 0.8～1.5mm.

During actual the use, apply suction pressure from external indwelling portion 212 rearward end, at the higher state of the suction pressure that attracts the initial stage, promptly during the suction pressure of about-200mmHg, carrying out body fluid by the pipe front end opening before joint-cutting 202 is opened discharges, subsequently, joint-cutting 202 is opened gradually from the rear end forward end on the length of tube direction, and suction pressure descends between leading section from the pipe rearward end of intracorporeal indwelling portion 211, discharges but can both carry out body fluid more equably in any position of pipe.And, be joint-cutting 202 in the intracorporeal indwelling portion of this pipe 211, the gap is infinitely small, so thrombosis, tissue etc. are difficult to enter, and tissue lengthening is slow, is difficult to obstruction in the pipe.Therefore, have body fluid and discharge easy advantage.When extracting, even the flow of liquid of the blood of discharging as waste liquid in the indwelling portion 211, body fluid disappears and is solidified into thrombosis in vivo, or in the situation of keeping somewhere for a long time etc., suppose under the situation that tissue etc. enters, owing to added joint-cutting 202 in the length of tube direction, pull-out resistance is less, does not have the probability of pipe fracture, and, in withdrawal process, can not bring patient's pain.

Next, internally the meaning that is provided with of cinclides 206 is narrated.Interior cinclides 206 for exist in the indwelling portion 211 in vivo joint-cutting 202 to induce pipe 201 be effective.Suppose joint-cutting 202 is being formed under the situation of groove with certain width, because entering, tissue induces in the pipe, and organize and also enter in the interior cinclides, therefore, manage equally with inducing of band side opening in the past, has the shortcoming that is accompanied by pain when extracting, but, manage 2 as of the present invention inducing, indwelling portion 211 has under the situation of joint-cutting 202 rather than groove 242 in vivo, tissue is difficult to enter induces in the pipe, interior cinclides 206 has the effect of waste liquid bypass to other inner chamber 203 paths, even suppose under the situation that waste liquid solidifies and generation is stopped up in an inner chamber 203 of blood or body fluid, because therefore these inner chamber 203 path bypass to other inner chamber 203 can discharge efficiently.And, can not enter interior cinclides 206 owing to organize, therefore extracting Shi Buhui generation pain, expectation is arranged on interior cinclides 206 on the inwall 204.

Though the external indwelling portion 212 that is made of straight tube can be a bigger inner chamber 203, form the structure of a plurality of inner chambers 203 that compile intracorporeal indwelling portion 211, but, the cross sectional shape of intracorporeal indwelling portion 211 is extended under the situation of shape of external indwelling portion 212 at that, can the outer indwelling of intensive aspect portion 212, can be prevented the effect of the bending or the fracture of pipe, be preferred therefore.

Usually, in order to be retained in the triangle that is surrounded by body wall, fascia, fat, the number of preferred joint-cutting 202 is an even number.Number for the inner chamber 203 of intracorporeal indwelling portion 211, owing to have the inner chamber 203 of separation inwall 204 each other, even therefore canal curvature also can be guaranteed tube cavity 203, and, for make joint-cutting 202 can not be organized obstruction, further, suppose under the situation that thrombosis or piece of tissue etc. enters, also can bring into play the body fluid discharge function well, a preferred inner chamber 203 is bigger, is preferably two holes.

The thickness of inwall 204 is preferably 0.4～2mm, if even more than 0.6mm then canal curvature also be difficult to kinking thereby be more preferably.And, to disperse in order exerting all one's strength when the stretching tube and not concentrate, be provided with the interval below the 50mm on the length of tube direction and get final product being arranged on interior cinclides 206 on this inwall 204, it is safer to spread all over the situation that the pipe total length is provided with as much as possible, and expectation is setting as much as possible.Size for interior cinclides 206, if intensity that is difficult to disconnect and bypass function when considering stretching tube in the lump, then preferably diameter is the size of 3～4 one-tenth degree of external diameter of pipe, but as long as the scope of diameter just can be brought into play function without a doubt in the scope of 0.5～3mm.

As the material of inducing pipe 2 involved in the present invention, can be the material as medical general use such as soft polyethylene resin, silicone rubber, polyurethane rubber, there is no particular determination.The cross sectional shape of pipe is except circle, also can be ellipse or Long Circle, though can be formed separately intracorporeal indwelling portion 211 and external indwelling portion 212 and bonding, assembling, if it is but integrally formed, the ladder that can both eliminate the connecting portion place in interior outside is poor, and, also be favourable on cost.

For aforesaid medical sucking liquid collector of the present invention, be accompanied by liquid collecting amount increase from the transudate in wound chamber, the change of suction pressure is little, can give the wound chamber suitable negative pressure all the time, and the healing facilitation effect is big.Do not exist danger, the use of the malleation that produces the transudate adverse current that makes extraction easy, liquid collecting zone and negative pressure keep distinguishing from, liquid collecting is stored and is all utilized rigid container to carry out, therefore in use can carry out the liquid collecting quantitative determination accurately easily all the time, and, discharge opeing operation when not needing midway attraction to be provided with again in most use case can be appended liquid collecting.Therefore, be a kind of ideal medical sucking liquid collector that can promote patient's healing, bring managerial convenience to medical practitioner.

And, manage 2 if use inducing of the present invention relates to, then when utilizing suction pump etc. to apply negative pressure, suction pressure transmits up to the rear end more equably from the front end that is retained in intravital pipe, therefore can discharge efficiently, owing to do not have side opening or groove on the tube-surface, in the body and extraneous gas can not be communicated with, the danger of therefore infecting etc. is few, compare safety, and, tissue is difficult to enter in the pipe, and pipe is difficult to stop up, and supposes to produce in inner chamber and stops up, this lumen passageway also can bypass to other inner chamber, in addition, be a kind of when the patient extracts pull-out resistance few, injuring the little pipe of inducing, is exceedingly useful as the safe and reliable pipe of inducing.

Claims (6)

1. medical sucking liquid collector,

Described medical sucking liquid collector is made of first Room and second Room, wherein said first Room, and it is used to attract to store the transudate (body fluid) from human body wound portion; The contractility that described second Room, its utilization are arranged on the balloon member that the expansion in the rigid container shrinks freely produces captivation,

First Room and second Room negotiable gas ground is communicated with,

The peristome of the parts with cover that on first Room, are provided with the opening and closing device of the connecting device of inducing pipe that is used for connecting body fluid and this device and are used for the body fluid that is stored in this chamber is discharged,

The balloon member that being built-in with in second Room expands shrinks freely, and, also be provided with and be used for this indoor exhaust gear that reduces pressure,

Balloon member has at least an end opening to lead to atmosphere, and under the state of the inner space of this balloon member and atmospheric gas circulation, be assembled in second indoor,

Exhaust gear is made of two one-way exhaust valves and the elastomer with inner space, a valve only engages with second Room towards the mobile mode in elastomeric inner space from second chamber interior with gas, another valve with gas only the mode from elastomeric inner space towards Atmospheric Flow dispose

This elastomeric compression recovery power is configured to bigger than the expansion contractility of balloon member,

To attract the air in the liquid trap to be expelled in the atmosphere by making this elastomer compression recovery repeatedly, be negative pressure in the container thereby make, and the second indoor balloon member is expanded, utilize the contractility of balloon member to be maintained at certain negative pressure always, it is characterized in that

The first indoor pressure from the residual pressure of initial pressure-200mmHg when having attracted 200mL water in the scope of-80 ± 10mmHg.

2. medical sucking liquid collector according to claim 1, described medical sucking liquid collector is made of first Room and second Room: wherein said first Room, it is used to attract to store the transudate (body fluid) from human body wound portion; The contractility that described second Room, its utilization are arranged on the balloon member that the expansion in the rigid container shrinks freely produces captivation,

First Room and second Room negotiable gas ground is communicated with,

The peristome of the parts with cover that on first Room, are provided with the opening and closing device of the connecting device of inducing pipe that is used for connecting body fluid and this device and are used for the body fluid that is stored in this chamber is discharged,

The balloon member that being built-in with in second Room expands shrinks freely, and, also be provided with and be used for this indoor exhaust gear that reduces pressure,

Balloon member have at least an end opening to lead to atmosphere and under the state of the inner space of this balloon member and atmospheric gas circulation, be assembled in second indoor,

Exhaust gear is made of two one-way exhaust valves and the elastomer with inner space, a valve only engages with second Room towards the mobile mode in elastomeric inner space from second chamber interior with gas, another valve with gas only the mode from elastomeric inner space towards Atmospheric Flow dispose

This elastomeric compression recovery power is configured to bigger than the expansion contractility of balloon member,

To attract the air in the liquid trap to be expelled in the atmosphere by making this elastomer compression recovery repeatedly, be negative pressure in the container thereby make, and the second indoor balloon member is expanded, utilize the contractility of balloon member to be maintained at certain negative pressure always, it is characterized in that

The first indoor pressure from the residual pressure of initial pressure-100mmHg when having attracted 200mL water in the scope of-40 ± 10mmHg.

3. medical sucking liquid collector according to claim 1 and 2 is characterized in that,

First Room and second Room are by dividing other rigid container to constitute, and can separate two containers and handle by the removably negotiable gas of piped path ground connection two Room.

4. according to each the described medical sucking liquid collector in the claim 1 to 3, it is characterized in that,

Described to induce pipe be by external indwelling portion and become the drain pipe that the intracorporeal indwelling portion of liquid collecting portion constitutes, and described external indwelling portion is made of straight tube, and described intracorporeal indwelling portion is connected the leading section of external indwelling portion, and this intracorporeal indwelling portion has two inner chambers,

Be provided with a joint-cutting on outer the facing the wall and meditating of this each inner chamber and on the length direction at pipe, this joint-cutting be provided with portion outer facing the wall and meditating be the thinner wall section of wall thickness below 0.5mm, the width of the thinner wall section on the circumference of facing the wall and meditating outward is 0.5～2mm, in addition, the wall thickness of facing the wall and meditating outward along from joint-cutting towards the circumference of inwall and increase, be 2mm to the maximum, in addition, on the length of tube direction with cinclides in being interval with of regulation so that the connections of two inner chambers.

5. according to each the described medical sucking liquid collector in the claim 1 to 4, it is characterized in that,

For the described pipe of inducing, the wall thickness of its inwall is 0.4～1.5mm, and with 10～50mm setting at interval, diameter of cinclides is 0.5～3mm to cinclides in this on the length of tube direction in it.

6. according to each the described medical sucking liquid collector in the claim 1 to 5, it is characterized in that,

External indwelling portion and intracorporeal indwelling portion are integrally formed.

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