JP2007195601A - Liquid discharge, liquid suction, and liquid discharging/sucking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid discharge, a liquid suction, and a liquid discharging/sucking device which solve the problem of a conventional art, have a infection preventing function, and apply no constraint feeling to a patient. <P>SOLUTION: This liquid discharging/sucking device is equipped with a liquid draining means, a suction means, and a communication means. In this case, the liquid draining means is equipped with a face plate which is fitted on the body surface, a pouch which is fixed on the non-contact side to the skin of the face plate, and receives a body liquid being discharged from the inside of the body, and a discharging port which is provided on one end of the pouch. The suction means generates a suction pressure inside by the recovery of the compressed shape after air inside has been discharged by compressing a container, sucks the body liquid from the suction port, and at the same time, stores the body liquid. The communication means liquidwise communicates with the discharging port of the liquid discharging means and the suction port of the suction means, and sucks the body liquid being received by the liquid discharging means toward the suction means. Then, the pouch of the liquid discharging means and the container of the suction means are fixed to the communication means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drainage, suction and drainage suction device used for drainage in which a drain is placed in the body and blood or exudate stored in a wound part or body cavity is continuously guided outside the body.

  Drainage is performed for the purpose of observing and confirming the state of the wound through the discharged matter, promoting healing and detecting infection early, and closed drainage, open drainage, and pouch drainage are performed depending on the purpose and site. .

  In the closed drainage, a drain is placed at the wound part in the body to collect the exuded body fluid, and the drain is connected to a suction device or a storage bag provided outside the body through an opening provided on the body surface to discharge the body fluid. Such a drain is, for example, provided with a plurality of grooves in the longitudinal direction of the outer surface in the liquid collection part to be in fluid communication with the body fluid, and the outflow part has a cylindrical shape so that suction can be performed (see Patent Document 1). ). Since the drain is sealed by the surface tissue around the opening and is open only to a sterilized suction device, not the atmosphere, the risk of contamination is reduced. Closed drainage is recommended by the US Department of Disease Prevention (CDC) because it has a lower risk of postoperative infection than open drainage, described below. However, the patient has a strong sense of restraint, and when a continuous suction device is connected, it is not preferable from the viewpoint of early bed leaving. Even when a small portable suction device is connected as a suction device, when the patient walks, the portable suction device needs to be housed in a pochette and hung from the shoulder, so the patient's ADL (Activity of Daily Life) ).

  In a portable suction device, the compressed shape is restored after the container is compressed and the air inside is discharged, so that a suction pressure is generated inside to suck and store body fluid. Those provided with a restoring means inside (see Patent Documents 2, 3, and 4), those that use the elasticity of the wall member constituting the container as a restoring force (see Patent Document 5), and can be freely expanded and contracted in a hard container There are those provided with means (see Patent Document 6).

  In the open drainage, one end of a drain is placed at a body fluid storage site in the body, the body fluid is guided outside the body by capillary action, and absorbed by gauze, cotton, etc. provided at the other end. The penrose drain used mainly consists of a thin soft material, so there is little sense of restraint for the patient, but gauze replacement, drainage observation is required, and furthermore it can not be connected to a suction device structurally, The chance of infection is high because body fluids are exposed to the atmosphere.

  In order to solve such a problem of the Penrose drain, there is also a device in which the shape of the protrusion provided on the inner wall of the drain is devised so that the rear end of the drain tube can be connected to the connection pipe with the drainage bag (Patent Document) 7), which is not sufficient to resolve the patient's sense of restraint.

  Pouch drainage is a method of managing drainage by attaching a pouch to the body surface, with a large amount of drainage, those that require continuous suction and frequent gauze dressing replacement, those with bad smell in drainage, Even if an open drain is used, it is suitable for those who want to perform drainage control in a closed manner (see Patent Documents 8 and 9). As an example of connection to a continuous suction device, there is also a report of a device in which a plurality of catheters are arranged in a pouch and the continuous suction is performed so that the pouch is not in close contact (see Non-Patent Document 1). However, there is a risk of retrograde infection because body fluid is stored in the pouch when not connected to the suction device, and when the suction device is connected, the patient feels restrained.

JP 2002-224222 A U.S. Pat. No. 4,161,179 Japanese Patent Publication No. 2-49747 JP 2002-291869 A JP 2001-218830 A Japanese Examined Patent Publication No. 63-1859 JP 2003-235958 A JP-A-9-192155 JP 2001-231802 A Taiichiro Kanakawa and two others, “Ingenuity of Pouch Drainage for Efficient Postoperative Management”, September 2001, Journal of Japanese Society for Colorectal Anal, Vol. 54, No. 9, 667

  An object of the present invention is to solve such problems of the prior art, and to provide a drainage, suction, and drainage suction device that has an infection prevention function and does not give a sense of restraint to the patient.

  According to the drainage suction device according to the present invention, the above-described problem is achieved by the following. A drainage means comprising a face plate for mounting on the body surface, a pouch that is fixed to the non-skinned side of the face plate and receives body fluid discharged from the body, and a discharge port provided at one end of the pouch; A suction means that generates a suction pressure by restoring the compressed shape after the container is compressed and the internal air is discharged, and sucks and stores body fluid from the suction port, and a discharge port of the drainage means And a communication means for fluidly communicating the suction port of the suction means and sucking the body fluid received by the drainage means toward the suction means, the pouch of the drainage means and the suction means A container is fixed to the communication means (invention of claim 1). Further, in the drainage suction device according to claim 1, the pouch of the drainage means and the container of the suction means are joined to each other (invention of claim 2).

  Further, the invention of the drainage device includes a face plate for covering the drain placed in the body and mounting it on the body surface, and a body fluid fixed to the non-cutting side of the face plate and guided to the placed drain. In the drainage device including the receiving pouch, receiving means for receiving the end of the drain is provided inside the pouch (invention of claim 3). Further, in the drainage device according to claim 3, the receiving means is a tubular member having a flat cross-sectional shape (invention of claim 4).

  In the suction device according to the present invention, the compressed shape is restored after the soft container is compressed and the internal air is discharged, thereby generating a suction pressure inside and sucking and storing the body fluid. A restoration comprising two hard plate-like members disposed opposite to each other inside the soft container, and a leaf spring member for connecting the corresponding ends of the two plate-like members to each other. Means are provided (invention of claim 5). Further, in the suction device according to the fifth aspect, the hard plate member and the leaf spring member are made of resin integrally formed in a cylindrical shape (invention of the sixth aspect).

  ADVANTAGE OF THE INVENTION According to this invention, the drainage management which has an infection prevention function and a patient does not have a restraint feeling is attained.

  Embodiments of the present invention are described below. The specific configuration of the drainage, suction, and drainage suction device will be described in the section of the embodiment described later.

  The drainage suction device of the present invention is a unit in which a drainage means mainly composed of a face plate and a pouch and a predetermined suction means are fixed to a communication means. Since the patient can wear the drainage means and the suction means together by the face plate, the patient is freed from the troublesomeness of connecting the conventional pouch drainage and the continuous suction device.

  The skin protective material to be applied to the skin used for the face plate of the drainage means may be any material that can be applied to the skin for an average of about 3 days and a maximum of about 5 days. After forming the opening corresponding to the drain wound, it is pasted on the body surface. The pouch may be any one that can be opened and closed by a dome-shaped cap or zipper with a hinge attached thereto, or that does not have an opening / closing means as long as it has sufficient sealing performance when negative pressure is applied. For example, a polyolefin-based plastic film manufactured using a metallocene catalyst having a slippery inner wall so that the drainage smoothly flows to the discharge port can be used. Further, a solid or hollow rod-shaped member having one end close to the drain and the other end connected to the discharge port may be disposed inside the pouch so that the drainage flows smoothly.

The suction means continuously generates a negative pressure of about minus 20 cmH ₂ O on average, and after the container is manually compressed and the air inside is discharged, the compressed shape is restored to restore the inside. As long as a body fluid is sucked by generating a suction pressure, either a soft container provided with a restoring means or a member using elasticity of a wall member constituting the container as a restoring force may be used. The container may store 100 ml to 300 ml of drainage, and may be a flexible material that does not feel uncomfortable for the patient. In addition, a transparent material with a scale on the front and a white material on the back are preferable so that the amount and color of the drainage can be easily observed. The container of the suction means is provided with an outlet with a cap for discarding the accumulated drainage, and an air intake for substituting with air when the drainage is discharged and smoothly discharging it.

  The communication pipe that is the communication means is a flexible material such as synthetic rubber such as ethylene propylene rubber or hydrogenated nitrile rubber, styrene or olefin thermoplastic elastomer, so that it can be removed by a milking operation when clogged. Can be used.

  A backflow prevention valve may be provided at one end of the communication pipe. The backflow prevention valve can be used as a soft flat tube, the end of which is in close contact, and the end of the close contact is expanded by a small pressure difference to allow the discharged body fluid to flow only in one direction to the suction means. Moreover, as long as it can operate | move by a micro pressure, what stuck rubber | gum on the bottomed cylinder which provided the small hole in the side surface used for the inflating of a bicycle may be used. The backflow prevention valve is disposed so as not to contact the inner wall surface of the container of the suction means so that the body fluid stored in the suction means does not reverse.

  In order to fix the drainage means and the suction means, a method such as fusing or bonding by heating and pressurizing the pouch of the drainage means and the container of the suction means to the communication pipe can be applied. May be directly joined together.

  The present invention is also a drainage device provided with receiving means for receiving the end of the drain inside the pouch. A tubular member having a predetermined strength can be used as the receiving means. When the drainage device is aspirated, the air in the pouch is discharged, and the walls of the soft pouch are deformed and adhere to each other. If the cross-section of the tubular member that serves as the receiving means is flattened, the pouch is more likely to adhere to the entire circumference of the side surface of the tubular member without gaps, so that only the interior of the tubular member is flowed below the drain in the pouch. It can be. Therefore, the body fluid discharged from the drain flows into the tubular member, and flows to the suction means via the communication pipe and the backflow prevention valve. As the flat shape, an elliptical shape or a semicircular shape, or an elliptical shape or a semicircular shape in which both sides are further thinned into a knife edge shape is effective because the pouch is further adhered without any gap. It is preferable that the inner diameter of the end of the tubular member that receives the drain is about 5 to 10 mm, and that the cross-sectional area is gradually reduced so that a steady flow of bodily fluid can be formed after receiving. .

  By providing a small hole in the tube wall of the tubular member corresponding to the bottom portion of the pouch, when the tubular member is clogged with body fluid, the small hole is again passed through the gap between the outer surface of the tubular member and the inner surface of the pouch. The inside of the tubular member can be guided to the discharge port.

  The present invention also includes two hard plate-like members disposed opposite to each other inside a soft container and a leaf spring member that connects the corresponding ends of the two plate-like members to each other. This is a suction device provided with restoring means. In the state where no external force is applied, the restoring means expands to extend the wall of the soft container. By manually pushing the surface of the container corresponding to the two plate-like members of the restoring means from the outside, the portion of the leaf spring member is further bent to bring the two plate-like members closer to each other. At this time, the inner wall is reduced and the internal air is discharged while the wall of the container is not stretched and remains stretched. After that, when the restoring means expands from the compressed shape and pushes the container wall from the inside, the volume of the container increases according to the restoring amount of the restoring means, negative pressure is generated inside the container, and body fluid is sucked And store.

  Depending on the shape of the leaf spring member, there may be a space between the upper surface of the hard plate member and the soft container. Since this space does not contribute to suction, it is preferable to join the upper surface of the hard plate member in advance to the inner surface of the soft container. In this way, the body fluid can be efficiently stored inside the container by deforming the container following the deformation of the restoring means at all times from the state in which the plate-like member is in close contact.

  As the material for the hard plate member, acrylonitrile / butadiene / styrene resin, polybutylene terephthalate resin, polycarbonate resin, polyethylene resin, polyethylene terephthalate resin, or the like is used.

  As the leaf spring member, one curved in an arc shape, two leaf springs joined in a substantially V shape, or the like can be used. The material of the leaf spring member can be the material used as the hard plate member, or a thermoplastic elastomer or synthetic rubber.

  In order to manufacture the restoring means from a plate-like member and a leaf spring member, bonding with the same kind of member, heat and pressure welding, or a method of integrally forming the whole in a cylindrical cross section, bonding when combining from different materials, Heat-press welding or the whole can be manufactured by an insert molding method with a cylindrical cross section.

  Properties common to the materials used include water resistance (swelling resistance, water absorption resistance), alcohol resistance, alkali resistance, resistance to sterilization by EOG (ethylene oxide gas) or radiation, and the like.

  Hereinafter, the present invention will be described with reference to examples.

Example 1
FIG. 1 shows a schematic configuration diagram of a drainage suction apparatus according to a first embodiment of the present invention, in which drainage means and suction means are fixed and integrated with communication means. In this embodiment, the pouch 4 of the drainage means 1 and the container 5 of the suction means 2 are fixed to the communicating portion 8b of the tubular member 8 which is the communication means, and further the container of the pouch 4 of the drainage means 1 and the suction means 2 The devices 5 are directly joined to each other so that the device is not twisted and does not interfere with use.

  The tubular member 8 is made of a thermoplastic elastomer, the upper part is a receiving means for receiving the end of a drain (not shown), the upper end extends almost to the center of the pouch, and the cross-sectional shape is semicircular at the upper part. The lower part is a communication means for fluidly communicating the drainage means 1 and the suction means 2, and a backflow prevention valve 6 is attached to the lower end with the lower end protruding into the suction means 2. The receiving portion 8a and the communicating portion 8b of the tubular member 8 can be formed by integral molding, but may be formed by connecting separate members.

  In the suction means 2, a restoring means extends from a soft bag-like container and is accommodated therein. The restoring means is composed of a pair of hard plate-like members 9 and a pair of leaf spring members 10a, 10b connected in the vertical direction in the figure. The leaf spring members 10a and 10b are provided with cuts corresponding to the discharge pipe 11 having the backflow prevention valve 6 and the cap 11a for opening and closing, respectively.

(Example 2)
FIG. 2 shows a schematic configuration of a drainage apparatus according to a second embodiment of the present invention, and FIG. 3 shows a top view (a), a plan view (b), and a side view (c) of a tubular member provided in the pouch. Show. The drainage device of the second embodiment is basically the same as the drainage means 1 in the first embodiment.

  The drainage device includes a face plate 3 provided with an adhesive skin protective material on the skin side for fixing to the patient's body surface, a pouch 4 attached to the non-skin side of the face plate 3, and a substantially center of the pouch 4 horizontally. A zipper 13 for opening and closing, a tubular member 8 provided in the pouch 4, a discharge portion 7 below the tubular member 8, and a cap 7a for closing the discharge portion 7. 4 b shows the heat seal part of the pouch 4.

  The pouch 4 is substantially circular as a whole, and the lower part is narrowed to an inverted triangle so that the discharged body fluid can smoothly flow to the bottom when used without being sucked. In the case of using without storing body fluid in the pouch, the pouch may be small. Further, when connected to the suction device, when suction is started, air is first discharged from the inside of the pouch, and a part of the storage portion of the suction means is unnecessarily occupied by the discharged air. For this reason, the entire pouch is made as small as possible in order to minimize the air discharged from the pouch.

  The tubular member 8 provided in the pouch has a flat cross section with a circular cross section at the bottom and a trumpet shape at the top. The inner surface of the tubular member 8 may be flat or may be provided with ribs in the length direction so that it can be guided by capillary force. In addition, a small hole 20 is formed on the side of the tube wall of the tubular member 8 corresponding to the bottom of the pouch 4, so that even if there is a body fluid that has flowed into the bottom of the pouch 4 outside the tubular member 8, The small holes 20 flow into the tubular member 8 and can be discharged from the discharge portion 7 of the tubular member 8.

  When the drainage device is sucked and used, the pouch 4 is in close contact with the tubular member 8 so that the body fluid flows through the space inside the tubular member 8. That is, when the end of the drain is disposed inside the tubular member 8 by a procedure, the body fluid guided from the body to the end of the drain overflows from the end of the drain and flows into the tubular member 8. Further, it gradually flows downward due to the negative pressure of suction and is discharged from the discharge portion 7 to the outside. In this way, since a substantially steady flow from the drain to the discharge pipe is formed by the negative pressure action due to suction in the pouch, body fluid does not accumulate in the pouch and the risk of retrograde infection can be reduced.

(Example 3)
FIG. 4 shows a schematic configuration of a suction device according to a third embodiment of the present invention, and FIG. 5 shows a schematic diagram of a suction mechanism. The suction device of the third embodiment is basically the same as the suction means 2 in the first embodiment. FIG. 5 is a diagram showing a state rotated 90 degrees with respect to FIG. In FIG. 5, details such as the suction port are omitted.

  In this suction means, the restoring means extends the soft bag-like container 5 and accommodates it inside. The soft bag constituting the container 5 is formed into a bag shape by heat-sealing the peripheral edges of two thermoplastic resin sheets. The restoring means is configured by connecting curved leaf spring members 10a and 10b to both ends of a pair of hard plate-like members 9 (9c and 9d) arranged in a direction perpendicular to the drawing sheet. The leaf spring members 10a and 10b have a trapezoidal shape in which the length of the side in contact with the hard plate-like member 9 is short in the drawing.

  In the container 5 and the restoring means, the outer periphery of the upper surface of the hard plate member 9 and the inner wall surface of the container 5 are joined (9a), so that the restoring means is always in close contact with the inner wall of the container 5 regardless of the expanded or compressed state. Is housed in. The heat seal portion 5a at the periphery of the container 5 is in contact with the curved outer surfaces of the leaf spring members 10a and 10b in the vertical direction in FIG. 4 so as to be able to cope with changes in the restoring means, and the left and right leaf spring members 10a and 10b in FIG. The portions corresponding to both ends are slightly separated, and the left and right central portions are separated in the compressed state.

  Of the pair of leaf spring members 10a and 10b constituting the restoring means, the upper leaf spring member 10a has a suction port 14 for sucking body fluid and a drain port 15 for discharging the body fluid stored by suction. Correspondingly, notches are formed in two places. The suction port 14 is an elastic tubular member, and a backflow prevention valve is attached to the lower end. A cap 16 is attached to the drainage port 15. The suction port 14 and the drainage port 15 are attached to the bag of the container 5 by heat sealing. Between the suction port 14 and the drainage port 15, a tab 17 having a suspension hole 17a for suspending the suction device is provided. The rigid plate-like member 9 of the restoring means is provided with a lock mechanism 12 that holds the restoring means in a compressed state.

  Next, the suction mechanism will be described. FIG. 5A shows a plan view of the state in which the restoring means is compressed by an external force, and FIG. 5B shows a cross-sectional view taken along A1-A2 of FIG. The expanded state is shown in (c) and (d). When the restoring means is compressed up and down in FIGS. 5B and 5D, the two hard plate-like members 9c and 9d are brought into close contact with each other, and the leaf spring members 10a and 10b at both ends are most curved. Since the wall of the container 5 is bonded to the upper surfaces of the hard plate-like members 9c and 9d, the A1-A2 cross section is generally the same as the outer shape of the restoring means. The distance between the heat seal part and the restoring means at this time is L1.

  When the restoring means expands and the two hard plate-like members 9c and 9d are separated from each other, the container 5 expands accordingly, and the wall on the central side is deformed so as to bite inward. When the distance L2 at which the two hard plate-like members 9c, 9d are separated from each other reaches almost twice L1, the wall 5c on the central side of the container 5 forms a surface perpendicular to the hard plate-like member. The expansion stops when the stress generated by the expansion of the walls 5c and 5d and the bending stress of the leaf spring members 10a and 10b balance. In this way, the restoring means always pushes the container 5 from the inside to expand it, so that a negative pressure corresponding to the expansion of the container 5 can be generated inside.

  FIG. 6 shows another example of the suction mechanism. The leaf spring members 10c and 10d used in this suction mechanism are obtained by joining two curved leaf spring members 10c1 and 10c2, 10d1 and 10d2 in a V shape. Since the whole is flat in the compressed state, the upper surface of the plate-like member 9 and the inner surface of the wall of the container 5 do not necessarily have to be joined unlike those in FIG. Even in this mechanism, it will be understood that the container 5 is always in the expanded state in the expanded state, and the internal volume and negative pressure of the container 5 change according to the amount of restoration of the restoring means.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram of the drainage absorber which concerns on 1st Example of this invention. The schematic block diagram of the drainage apparatus which concerns on 2nd Example of this invention. The figure which shows the tubular member of this invention. The schematic block diagram of the absorber which concerns on the 3rd Example of this invention. The schematic diagram of the attraction | suction mechanism of this invention. The schematic diagram of the suction mechanism different from FIG. 5 of this invention.

Explanation of symbols

1: drainage means, 2: suction means, 3: face plate, 4: pouch, 4a: opening, 4b: heat seal part of pouch, 5: container, 5a: heat seal part of container, 5c, 5d: of container Wall, 6: Backflow prevention valve, 7: Discharge part, 7a, 11a, 16: Cap, 8: Tubular member, 8a: Receiving part, 8b: Communication part, 9, 9c, 9d: Rigid plate member, 9a: Joint portion between container wall and plate member, 10, 10a, 10b, 10c, 10d, 10c1, 10c2, 10d1, 10d2: leaf spring member, 11: discharge pipe, 12: lock mechanism, 13: zipper, 14: suction Port, 15: drainage port, 17: tab.

Claims (6)

A drainage means comprising a face plate for mounting on the body surface, a pouch that is fixed to the non-skinned side of the face plate and receives body fluid discharged from the body, and a discharge port provided at one end of the pouch;
A suction means for compressing the container and discharging the internal air to restore the compressed shape, thereby generating a suction pressure inside and sucking and storing the body fluid from the suction port;
A communication means for fluidly communicating the discharge port of the drainage means and the suction port of the suction means for sucking the body fluid received by the drainage means toward the suction means;
A drainage suction device, wherein a pouch of the drainage means and a container of the suction means are fixed to the communication means.   The drainage suction apparatus according to claim 1, wherein the drainage means pouch and the suction means container are joined to each other. In a drainage device comprising a face plate for covering a drain placed in the body and mounting it on the body surface, and a pouch that is fixed to the non-skinned side of the face plate and receives body fluid guided to the placed drain ,
A drainage device, characterized in that receiving means for receiving an end of the drain is provided inside the pouch.   The drainage device according to claim 3, wherein the receiving means is a tubular member having a flat cross-sectional shape. In a suction device that compresses a soft container and discharges the air inside to restore the compressed shape, thereby generating suction pressure inside and sucking and storing body fluid,
Restoring means comprising two hard plate-like members disposed opposite to each other inside the soft container, and a leaf spring member for connecting the corresponding ends of the two plate-like members to each other. A suction device characterized by comprising: The suction device according to claim 5, wherein the hard plate member and the plate spring member are made of a resin integrally formed in a cylindrical shape.

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