JP2011055992A - Discharge port member and medical bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharge port member for easily puncturing a needle body to a discharge tube and not causing the risk of bacterial contamination or the like when opening the discharge port member in order to discharge liquid stored inside a bag body, and a medical bag provided with it. <P>SOLUTION: The discharge port member 1 is connected to the upper end part of the bag body storing the liquid inside, used for discharging the liquid inside the bag body, and provided with a discharge tube 2 connected with the bag body and communicating with the inside, a bag-like protective sheet 3 covering the discharge tube 2, and a tab sheet 4 whose one end part is connected with one end part of the protective sheet 3. The tab sheet 4 is provided with a fusion groove 4a fused with a part of the surface of the protective sheet 3 to form an opening 3a at a part of the protective sheet 3 by the opening operation of the tab sheet 4, and the discharge tube 2 is provided with an opening locking part 2a for locking the opening 3a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a discharge port member used for discharging a liquid such as blood stored in a bag body and a medical bag including the discharge port member.

  Conventionally, in a medical bag such as a blood bag, a discharge port member is connected to an upper end portion of the bag body in order to discharge blood stored in the bag body when necessary. This discharge port member is normally sealed in a liquid-tight manner, but when a liquid such as blood is discharged, the distal end side of the tube communicating with the inside of the bag body provided inside the discharge port member is exposed. Thus, it is necessary that the discharge port member can be opened. As such a discharge port member, Patent Document 1 describes one having the following configuration.

  The outlet member described in Patent Document 1 (in this case, a protector) is attached to the upper end of a medical bag and used for blood transfusion or the like. A tab sheet (in the literature, with ribs formed on both sides of the handle) Opening tab) and a protective sheet (main body in the literature) formed by welding a pair of sheets, and inside the protective sheet is a discharge tube (in the literature, blood transfusion) communicating with the inside of the medical bag Mouth) is stored. Then, the tab sheet is welded to the protective sheet leaving a handle, a fusion groove (breaking groove in the literature) is formed so as to be hooked on both upper and lower ends of the tab sheet, and the lower part of the fusion groove is formed in a V shape, and The upper part is formed along the opening tab.

  During blood transfusion, the opening operation of the discharge port member is performed by fixing the handle with a finger while the medical bag is suspended upside down and pulling the tab sheet downward. By this opening operation, the tab sheet is peeled off along with the protective sheet along with the protective sheet, an opening is formed in a part of the protective sheet, and the distal end side of the discharge tube is exposed from the opening. Then, the needle body is pierced through the exposed discharge tube, and the blood stored in the medical bag is discharged through the discharge tube and the needle body.

No. 04-10835

  However, in the conventional discharge port member, when the discharge port member is opened, if the tab sheet is released (released), the tab sheet and the protective sheet tend to return to the original state. May prevent exposure from the opening of the discharge tube. As a result, there is a problem that it is difficult to pierce the needle body into the discharge tube, and there is a risk that fingers may touch the discharge tube when the needle body is pierced, resulting in bacterial contamination.

  Therefore, the present invention was devised to solve such a problem, and its purpose is to open the discharge port member when the discharge port member is opened in order to discharge the liquid stored in the bag body. An object of the present invention is to provide a discharge port member that is easy to pierce a needle body and does not cause a risk of bacterial contamination or the like, and a medical bag including the discharge port member.

  In order to solve the above-mentioned problems, the discharge port member according to the present invention is a discharge port member that is connected to an upper end portion of a bag body that stores liquid therein and is used to discharge the liquid in the bag body. A discharge tube connected to the bag body and communicating with the interior of the bag, a bag-like protective sheet enclosing the discharge tube, and a tab sheet having one end connected to one end of the protective sheet, The tab sheet has a fusion groove that is fused to a part of the surface of the protective sheet and forms an opening in a part of the protective sheet by an opening operation of the tab sheet, and the discharge tube has the opening It has the opening latching | locking part which latches a part, It is characterized by the above-mentioned.

  According to the above configuration, since the discharge tube has the opening locking portion, in the opening operation of the discharge port member, one end of the opening formed in the protective sheet by the tab sheet opening operation is engaged with the opening locking portion. Stopped. As a result, the tab sheet and the protective sheet are prevented from returning to the original state (before opening), and the exposure from the opening of the discharge tube (front end side) is maintained.

  The discharge port member according to the present invention is characterized in that the discharge tube has a reduced-diameter portion that is reduced in diameter toward the distal end side of the discharge tube on the distal end side of the opening locking portion.

  According to the said structure, in order to latch the one end part of the opening part formed in the protection sheet to the opening latching | locking part of a discharge tube in the opening operation | work of a discharge port member because a discharge tube has a reduced diameter part. When the protective sheet is folded, the distal end side of the discharge tube is prevented from interfering with the folding of the protective sheet. As a result, one end of the opening can be easily locked to the opening locking portion, and exposure from the opening of the discharge tube (front end side) is further maintained.

  In the discharge port member according to the present invention, the tab sheet has a cutout portion at the other end, and the discharge tube has a cutout locking portion that locks the cutout portion closer to the distal end side than the opening locking portion. It is characterized by that.

  According to the said structure, since the discharge tube has a notch latching | locking part, in the opening operation | work of a discharge port member, since the notch part of a tab sheet is latched by a notch latching | locking part, a tab sheet and a protection sheet return. And the exposure from the opening of the discharge tube (front end side) is further maintained.

  The discharge port member according to the present invention is characterized in that the tab sheet has a convex rib on at least one surface thereof.

  According to the said structure, when the tab sheet | seat has a rib, the surface frictional resistance of a tab sheet | seat increases. Thereby, in the opening operation of the discharge port member, slippage of the tab sheet is suppressed, and the tab sheet can be easily fixed with fingers. As a result, the tab sheet opening workability is improved. As a result, the exposure from the opening of the discharge tube (front end side) is further maintained.

  The discharge port member according to the present invention is characterized in that the discharge tube has a sealing film for sealing the lumen.

  According to the above configuration, by having the sealing film, regardless of whether the discharge port member is unopened or unsealed, the liquid stored in the bag body is discharged, and foreign matter, bacteria, etc. enter the bag body. Can be prevented.

  The medical bag according to the present invention includes the discharge port member, and a bag body in which the discharge port member is connected to an upper end portion and stores a liquid therein.

  According to the said structure, when the discharge port member is opened in order to discharge the liquid accommodated in the bag main body by providing the said discharge port member, exposure from the opening part of a discharge tube (front end side) is carried out. It is easily maintained and reduces the risk of bacterial contamination.

  According to the discharge port member and the medical bag including the same according to the present invention, when the discharge port member is opened to discharge the liquid stored in the bag body, the needle body is inserted into the discharge tube. It is easy to remove and there is no risk of bacterial contamination.

It is a front view which shows the structure of the medical bag which concerns on this invention. (A) is a front view which shows the structure of the discharge port member which concerns on this invention, (b) is a front view which shows opening operation | movement of the discharge port member of (a), (c) is sectional drawing of the fusion groove | channel of a tab sheet | seat. is there. (A), (b) is a front view which shows a discharge tube. (A) is a front view which shows the structure of another form of the discharge port member which concerns on this invention, (b) is a front view which shows the opening operation | movement of the discharge port member of (a). (a), (b) is a front view which shows another form of a discharge tube. It is a perspective view which shows the latching state of the tab sheet and protection sheet to a discharge tube. It is the XX sectional view taken on the line of FIG.

DESCRIPTION OF EMBODIMENTS Embodiments of a discharge port member and a medical bag according to the present invention will be described in detail with reference to the drawings.
<Medical bag>
The medical bag according to the present invention is a blood bag, an infusion bag, a nutrient bag, and the like, and is not particularly limited as long as it is a bag (container) used for medical purposes.
As shown in FIG. 1, the medical bag 10 includes a discharge port member 1 and a bag main body 11 that is connected to the upper end portion of the discharge port member 1 and stores liquid therein. Examples of the liquid stored in the bag body 11 include blood, blood components (red blood cells, buffy coat, white blood cells, platelets, plasma, etc.), anticoagulants, red blood cell preservation solutions, platelet preservation solutions, infusion agents (medical solutions, physiological saline, etc.) ), Nutrients and the like, which are not particularly limited thereto. Each configuration will be described below.

(Bag body)
The bag body 11 is composed of a flexible sheet made of a resin material such as polyvinyl chloride, and two resin sheets are stacked, and the peripheral edge is fused (for example, heat fusion, high frequency fusion) or bonded. It is sealed and molded into a bag shape. Alternatively, the resin material may be formed into a cylindrical shape by cylindrical extrusion, and both edges thereof are fused or bonded to form a bag. The bag body 11 is not particularly limited as long as it is formed into a bag shape so that liquid can be stored therein. And the magnitude | size of the bag main body 11 is suitably determined with the content (200-1000 ml).

  A discharge port member 1 according to the present invention is liquid-tightly connected to the upper end portion of the bag body 11. In addition, a flexible tube 12 made of a resin material such as polyvinyl chloride is liquid-tightly connected to the upper end portion of the bag body 11. In this case, the base end side of the discharge port member 1 and the tube 12 is sandwiched between sheets constituting the bag body 11 and is connected by fusion or adhesion so as to communicate with the inside of the bag body 11. . Further, although not shown, the distal end side of the tube 12 is connected to, for example, a needle body (blood collection needle), a bag similar to the bag body 11 or a bag having a different configuration. In addition, the use of the tube 12, a connection partner, the number of connections, etc. are not particularly limited.

(Discharge port member)
The discharge port member 1 is connected to the upper end portion of the bag main body 11 and discharges the liquid stored in the bag main body 11, and the configuration thereof will be described below. The discharge port member 1 may be used not only for discharging liquid from the inside of the bag body 11 but also for injecting liquid into the bag body 11 from the outside. Further, in the embodiment of the present invention, the number of the discharge port members 1 connected to the upper end portion of the bag body 11 is two as shown in FIG. 1, but is not limited to two, but one or two. It may be the above.

<Discharge port member (first embodiment)>
1st Embodiment of the discharge port member which concerns on this invention is described with reference to drawings.
As shown in FIGS. 2A to 2C, the discharge port member 1 includes a discharge tube 2, a protective sheet 3, and a tab sheet 4. Each configuration will be described below. In addition, in the discharge port member 1, the side connected with the bag main body 11 (refer FIG. 1) is defined as a base end side, and the opposite side is defined as a front end side.

(Discharge tube)
The discharge tube 2 is composed of a tube body having an outer diameter D (see FIG. 3A): 3 to 15 mm, and its proximal end is sandwiched between sheets constituting the bag body 11 and is fused or bonded. The upper end of the bag body 11 is connected to communicate with the interior of the bag body 11 (see FIG. 1). Moreover, as shown in FIGS. 2A and 2B, the discharge tube 2 is an opening latch that latches one end 3 b of the opening 3 a of the protective sheet 3 described later in the opening operation of the discharge port member 1. Part 2a.

  As shown in FIG. 6, since the discharge tube 2 has the opening locking portion 2a, the protective sheet 3 (opening portion 3a) is locked to the opening locking portion 2a, so that the protective sheet 3 is in its original state. Returning is suppressed, and exposure from the opening 3a of the discharge tube (front end side) 2 is maintained. Further, the tab sheet 4 to be described later is also prevented from returning to the original state.

  As shown in FIGS. 2 (a), 2 (b), and 3 (a), the opening locking portion 2a is preferably a rib projecting in the outer diameter direction of the discharge tube 2, but if the opening 3a can be locked, It is not limited to ribs. Moreover, it is preferable that the outer diameter D2 of the opening latching | locking part 2a and the internal diameter D1 of the one end part 3b of the opening part 3a satisfy the relationship of D2> = D1. By satisfying D2 ≧ D1, the locking state between the opening locking portion 2a and the one end portion 3b of the opening 3a becomes sufficient.

  As shown in FIGS. 2A, 2 </ b> B, and 7, the locked state of the opening 3 a in the opening locking portion 2 a is locked in the thickness direction of the protective sheet 3. Therefore, it is more preferable that the outer diameter D2 of the opening locking portion 2a projects beyond the thickness T1 of the protective sheet 3 as compared with the outer diameter D of the discharge tube 2, and D2 ≧ D + 2 × T1. Here, the thickness T1 of the protective sheet is usually 0.1 to 0.5 mm.

  As shown in FIG. 3 (b), the discharge tube 2 preferably has a reduced diameter portion 2 b that is reduced in diameter toward the distal end side of the discharge tube 2 on the distal end side from the opening locking portion 2 a. That is, the reduced diameter portion 2b has an inclined surface that is inclined toward the distal end, and the inclination angle θ is an acute angle. The reduced diameter portion 2b is formed continuously with the opening locking portion 2a in FIG. 3B, but may be formed discontinuously with a predetermined interval (not shown).

  And since the discharge tube 2 has the reduced diameter part 2b, in the opening operation | work of the discharge port member 1 like FIG.2 (b), in order to latch the one end part 3b of the opening part 3a to the opening latching | locking part 2a. In addition, when the protective sheet 3 is bent toward the base end side (downward) of the discharge tube 2, the distal end side of the discharge tube 2 is prevented from obstructing the bending of the protective sheet 3. As a result, the one end 3b of the opening 3a can be easily locked to the opening locking portion 2a, and the exposure of the discharge tube (front end side) 2 from the opening 3a is further maintained.

  As shown in FIG. 7, the discharge tube 2 preferably has a sealing film 5 that seals its lumen. Since the discharge tube 2 has the sealing film 5, the liquid stored in the bag body 11 is discharged regardless of whether the discharge port member 1 is unopened or unsealed, and foreign matter, bacteria, etc. Can be prevented.

(Protective sheet)
As shown in FIG. 2 (a), the protective sheet 3 is formed by stacking two resin sheets, sandwiching the discharge tube 2 therebetween, and fusing or adhering the peripheral portion thereof to form the discharge tube 2. It is an encapsulated bag-like sheet (the thickness T1 of the sheet is usually 0.1 to 0.5 mm, see FIG. 2C). Similarly to the discharge tube 2, the protective sheet 3 is sandwiched between sheets constituting the bag body 11, and is connected to the upper end portion of the bag body 11 by fusion or adhesion (see FIG. 1). .

  As shown in FIG. 2 (b), the protective sheet 3 constitutes the protective sheet 3 by an opening operation for peeling the tab sheet 4 described later toward the distal end side of the discharge tube 2 in the opening operation of the discharge port member 1. An opening 3a is formed in a part of the sheet. Specifically, the opening 3 a is formed by cutting the sheet (protective sheet 3) in the region surrounded by the fusion groove 4 a of the tab sheet 4 by the opening operation of the tab sheet 4 and peeling off the tab sheet 4. . Therefore, the shape of the opening 3a is determined by the shape of the fusion groove 4a. The shape of the fusion groove 4a is such that one end of the tab sheet 4 starting to break (peel) from the protective sheet 3 during the opening operation is substantially U-shaped or substantially V-shaped, and the other end extends substantially in parallel 2 It is a straight line of books. For this reason, the shape of the opening 3a is such that one end 3b formed at the start of the opening operation is substantially U-shaped or substantially V-shaped, and the other end 3c formed thereafter is substantially square. As a substantially trapezoidal shape. However, the shapes of the opening 3a and the fusion groove 4a are not limited to the above shapes as long as the distal end side of the discharge tube 2 is exposed.

  Since the opening 3a has one end 3b locked to the opening locking portion 2a as shown in FIG. 6, the same position (same as the opening locking portion 2a) in terms of ease of locking operation. Height). In addition, the inner diameter D1 of the one end 3b of the opening 3a is set smaller than the outer diameter D of the discharge tube 2 in order to ensure sufficient locking at the opening locking portion 2a (discharge tube 2). It is preferable.

(Tab sheet)
As shown in FIGS. 2A to 2C, the tab sheet 4 is a sheet made of a resin sheet and thicker than the protective sheet 3. And the thickness T2 of the tab sheet 4 is 0.3-0.7 mm normally. The tab sheet 4 has one end connected to one end of the protective sheet 3 by fusion or adhesion, and a part of the surface of the protective sheet 3 is fused to form a fusion part M on the surface. Then, the fused portion M is broken (peeled) by the opening operation of the tab sheet 4 to have a fused groove 4 a that forms an opening 3 a in a part of the surface of the protective sheet 3.

  As described above, one end side of the fusion groove 4a is substantially U-shaped or substantially V-shaped, but the opening 3a formed by the fracture of the fusion part M exposes the distal end side of the discharge tube 2. If possible, the shape is not specified. Further, as a method of forming the fusion groove 4a, the protective sheet 3 and the tab sheet 4 are overlapped, and a fusion pin (not shown) is pressed from the protective sheet 3 side or the tab sheet 4 side so that the protective sheet 3 and the tab sheet 4 are fused. The fused portion M is formed, and the fused portion M is formed thin. In addition, if the fusion groove | channel 4a which the fusion | melting part M fracture | ruptures can be formed by opening operation of the tab sheet 4, it will not be specified by the said method.

  The tab sheet 4 has convex ribs 4b on at least one surface thereof. When the tab sheet 4 has the rib 4b, the surface frictional resistance of the tab sheet 4 increases. Thereby, in the opening operation of the discharge port member 1, the tab sheet 4 is prevented from slipping, and the tab sheet 4 can be easily fixed with fingers. As a result, the opening workability of the tab sheet 4 is improved. Moreover, the height of the rib 4b is 1.0-1.5 mm normally.

  In the discharge port member 1 according to the present invention, the material constituting each member of the discharge tube 2, the protective sheet 3, and the tab sheet 4 is preferably a thermoplastic resin such as polyvinyl chloride. Each member may be made of the same material or different materials.

<Discharge port member (second embodiment)>
Next, 2nd Embodiment of the discharge port member which concerns on this invention is described with reference to drawings.
As shown in FIGS. 4A and 4B, the discharge port member 1 of the second embodiment includes the discharge tube 2, the protective sheet 3, and the tab sheet 4 similar to those of the first embodiment. In addition, the discharge tube 2 has a notch locking portion 2c, and the tab sheet 4 has a notch portion 4c. Each configuration will be described below.

(Discharge tube)
As shown in FIGS. 4A, 4B, and 5A, the discharge tube 2 has a structure of the discharge tube 2 according to the first embodiment. It further has a notch locking portion 2c for locking the notch portion 4c.

  As shown in FIG. 6, since the discharge tube 2 has the notch locking portion 2c, the tab sheet 4 (notch portion 4c) is locked to the notch locking portion 2c, so that the protective sheet 3 returns to its original state. This is further suppressed, and the exposure from the opening 3a of the discharge tube (front end side) 2 is further maintained. Further, the tab sheet 4 described later is further suppressed from returning to the original state.

  As shown in FIGS. 4B and 5A, the notch locking portion 2c is preferably a rib protruding in the outer diameter direction of the discharge tube 2, but is not limited to a rib as long as the notch 4c can be locked. . Moreover, it is preferable that the outer diameter D3 of the notch locking part 2c and the inner diameter D4 of the notch part 4c satisfy the relationship D3 ≧ D4. By satisfying D3 ≧ D4, the notch engagement portion 2c and the notch portion 4c are sufficiently engaged with each other.

  As shown in FIGS. 6 and 7, the notch 4c (tab sheet 4) is locked to the lower side (opening locking portion 2a side) of the notch locking portion 2c. Therefore, the distance L between the notch locking portion 2c and the opening locking portion 2a is preferably equal to or greater than the thickness T2 of the tab sheet 4. Here, the thickness T2 of the tab sheet 4 is usually 0.3 to 0.7 mm.

  As shown in FIG. 5B, the discharge tube 2 may have a diameter-reduced portion 2b similar to that of the first embodiment on the tip side from the notch locking portion 2c. The reduced diameter portion 2b is formed continuously from the notch locking portion 2c in FIG. 5B, but may be formed discontinuously with a predetermined interval (not shown).

(Protective sheet)
Since it is the same as that of 1st Embodiment, description is abbreviate | omitted.

(Tab sheet)
As shown in FIGS. 4A and 4B, the tab sheet 4 further includes a notch 4c at the other end in addition to the configuration of the first embodiment. The cutout 4c preferably has a semicircular shape or a square shape, but is not limited to the above shape as long as the cutout 4c is locked to the cutout locking portion 2c of the discharge tube 2. Further, the inner diameter D4 of the cutout portion 4c is set smaller than the outer diameter D of the discharge tube 2 (see FIG. 5A) so that the notch locking portion 2c (discharge tube 2) is sufficiently locked. It is preferable that

  Next, a method for using the discharge port member and the medical bag according to the present invention will be described. Here, each structure of a discharge port member and a medical bag is demonstrated with reference to FIG. 1, FIG. 2 (a), (b), and FIG.

  The bag body 11 of the medical bag 10 is gripped with one hand. Then, with the medical bag 10 suspended from a stand or the like, the other end of the tab sheet 4 of the discharge port member 1 connected to the upper end of the bag body 11 is pinched with the finger of the other hand from the protective sheet 3. Peel off. Accordingly, the tab sheet 4 is peeled off along with the part of the protective sheet 3 along the fusion groove 4 a, and an opening 3 a is formed in the protective sheet 3. Next, the protective sheet 3 is bent to the proximal end side, and the distal end side of the discharge tube 2 housed inside the protective sheet 3 is exposed from the opening 3a. And the one end part 3b of the opening part 3a is latched by the opening latching | locking part 2a of the discharge tube 2, and the exposure of the discharge tube (front end side) 2 is maintained. Next, a blood transfusion set or other bag in which the needle body is inserted into the exposed distal end side of the discharge tube 2 and the liquid stored in the bag body 11 is connected to the needle body through the discharge tube 2 and the needle body. To discharge.

  4A and 4B, the notch 4c of the tab sheet 4 is connected to the notch of the discharge tube 2 following the locking of the opening 3a. Engage with the stopper 2c to keep the discharge tube (tip side) 2 exposed.

DESCRIPTION OF SYMBOLS 1 Discharge port member 2 Discharge tube 2a Opening latching part 3 Protective sheet 3a Opening part 4 Tab sheet | seat 4a Fusing groove 10 Medical bag 11 Bag main body

Claims (6)

A discharge port member connected to the upper end of the bag main body for storing the liquid therein and used for discharging the liquid in the bag main body;
A discharge tube connected to and communicated with the bag body;
A bag-like protective sheet enclosing the discharge tube;
A tab sheet connected to one end of the protective sheet at one end;
The tab sheet has a fusion groove that is fused to a part of the surface of the protective sheet and forms an opening in a part of the protective sheet by an opening operation of the tab sheet.
The discharge port member, wherein the discharge tube has an opening locking portion that locks the opening.   2. The discharge port member according to claim 1, wherein the discharge tube has a reduced diameter portion that is reduced in diameter toward the distal end side of the discharge tube on the distal end side of the opening locking portion.   The tab sheet has a notch portion at the other end, and the discharge tube has a notch locking portion for locking the notch portion closer to the tip than the opening locking portion. The discharge port member according to claim 2.   The discharge port member according to at least one of claims 1 to 3, wherein the tab sheet has a convex rib on at least one surface thereof.   The discharge port member according to at least one of claims 1 to 4, wherein the discharge tube has a sealing film that seals a lumen thereof. The discharge port member according to at least one of claims 1 to 5,
A medical bag, comprising: a bag main body in which the discharge port member is connected to an upper end portion and stores liquid therein.

Images