JP2008000320A - Hemocatharsis apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hemocatharsis apparatus facilitating the work of attaching or detaching a heating bag to or from a heating means and surely preventing a flexible tube extended from the heating bag from being caught. <P>SOLUTION: The hemocatharsis apparatus comprises an apparatus body 1 for the blood purification therapy, and a heating means 8 disposed in the apparatus body 1 for heating the replenishment fluid by storing and heating the heating bag B in which the fluid such as replenishment fluid for the therapy flows. The heating means 8 comprises a lid part 9 which is openable/closable as oscillates around an oscillation axis L in the lower part and whose upper face in the opened state is retained horizontally so that the heating bag B can be put on the lid part 9; a body part 10 which can hold and store the heating bag B between the body part and the lid part 9 when the lid part 9 is closed; and heating parts 9b and 10b formed on opposite faces of the lid part 9 and the body part 10 for heating the stored heating bag G. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention comprises an apparatus main body for performing blood purification treatment on a patient, and warms the liquid relating to the treatment such as the replacement fluid by containing the heating bag in which the fluid related to the treatment such as the replacement fluid flows. The present invention relates to a blood purification apparatus in which a heating means for heating is disposed in the apparatus main body.

  The blood purification apparatus is generally an apparatus that can perform hemodialysis (HD), hemodiafiltration (HDF), blood filtration (HF), continuous slow blood filtration (CHF), and the like. A hemodialysis device for performing hemodialysis (HD) is a device that treats patients with impaired renal function and diffuses blood and dialysate through a semipermeable membrane such as a dialyzer. It is configured to remove excess water by removing solute by ultrafiltration and ultrafiltration.

  A hemofiltration device for performing hemofiltration (HF) is a device for treating patients with dialysis amyloidosis or dialysis dysfunction difficult to cope with by hemodialysis as described above. The body fluid component is filtered by applying an ultrafiltration pressure to the blood side, and a replacement replenisher (replacement fluid) is injected to correct the electrolyte and acid-base balance. A hemodiafiltration device for performing hemodiafiltration (HDF) is a device for treating patients with dialysis amyloidosis or dialysis difficulty that cannot be treated by hemodialysis, and can simultaneously perform hemodialysis and hemofiltration, It is configured to have both advantages.

  Some blood purification apparatuses as described above can inject a replacement fluid to a patient, and the replacement fluid is conventionally formed on a side surface 101a of the apparatus main body 101 as shown in FIGS. After being heated by the heating means 102, it was configured to be injected into the patient. As shown in FIG. 14, the heating means 102 swings toward the side (right side in the figure) around the swing axis La so as to approach or separate from the main body 102b and freely open and close. As shown in FIG. 15, the lid 102a is opened, the heating bag B is attached to the main body 102b, and then the heating bag is closed by closing the lid 102a as shown in FIG. B is configured to be sandwiched between the lid portion 102a and the main body portion 102b.

  In addition, heaters are provided on the surface (clamping surface) that contacts the warming bag B in the warming means 102, and the warming bag B is used as the heater while flowing the replacement fluid in the warming bag B. When heated, a replacement fluid having a predetermined temperature (about the body temperature of the patient) can be obtained. In addition, since this prior art does not relate to the literature known invention, there is no prior art document information to be described.

  However, the above conventional blood purification apparatus is opened by the lid of the heating means swinging sideways, and the heating bag B is attached to the main body. There was a problem. Since the attachment surface of the heating bag B of the main body is a substantially vertical surface, when the heating bag B is attached, it is bent by its own weight (see the upper right corner of the heating bag B in FIG. 15). It was difficult to fix the warming bag B.

  Further, since the flexible tube (see the lower flexible tube K in FIG. 15) extending from the warming bag B hangs down in an unintentional direction due to its own weight, the lid is closed. The flexible tube may be sandwiched between the lid and the main body, and the flow path may be blocked. However, the operator can prevent the flexible tube from being caught by closing the lid while pressing the flexible tube, but in this case, the workability is deteriorated.

  The present invention has been made in view of such circumstances, and facilitates attachment or detachment of the heating bag to or from the heating means, and ensures that the flexible tube extending from the heating bag is caught. An object of the present invention is to provide a blood purification device that can be prevented.

  The invention according to claim 1 includes an apparatus main body for performing blood purification treatment on a patient, and heats the patient while warming a warming bag in which a liquid related to the treatment such as a replacement fluid flows. In the blood purification apparatus in which the heating means for heating the liquid related to the liquid is disposed in the apparatus main body, the heating means can be opened and closed by swinging around the lower swing shaft. The heated bag is sandwiched between a lid portion that can hold the warming bag while the substantially horizontal state of the upper surface is maintained in the open state, and the lid portion when the lid portion is closed. The main body part which can be accommodated, and the heating part which is formed in the mutually opposing surface of the said cover part and a main body part, and can heat the accommodated warming bag were provided.

  According to a second aspect of the present invention, in the blood purification apparatus according to the first aspect, the surface on which the heating means is disposed in the main body is composed of a forward inclined surface whose upper part protrudes forward and overhangs. To do.

  According to a third aspect of the present invention, in the blood purification apparatus according to the first or second aspect, the lid portion is connected to the main body portion by a hinge and swings about a swing axis formed by the hinge. By doing so, it can be opened and closed close to or away from the main body, and further swinging of the lid is restricted at the swing limit angle of the hinge, so that the substantially horizontal state is maintained. Features.

  According to a fourth aspect of the present invention, in the blood purification apparatus according to any one of the first to third aspects, a fixing means for fixing the heated bag placed thereon is formed on the lid portion. It is characterized by that.

  According to a fifth aspect of the present invention, in the blood purification apparatus according to the fourth aspect, the heating bag is provided with an inlet for introducing a liquid related to treatment such as a replacement fluid into an internal flow path, and the flow path. A discharge port for discharging a liquid related to treatment such as a replacement fluid is formed, and the fixing means fixes the introduction port and the discharge port.

  According to the invention of claim 1, the lid portion of the heating means can be opened and closed by swinging about the lower swing shaft, and the substantially horizontal state of the upper surface is maintained in the open state. Since the heating bag can be placed, it is possible to reliably avoid the heating bag from being bent by its own weight or the flexible tube or the like extending from the heating bag from drooping in an inadvertent direction. Therefore, it is possible to easily attach or remove the heating bag to or from the heating means, and to reliably prevent the flexible tube extending from the heating bag from being caught.

  According to the second aspect of the present invention, the surface on which the heating means is disposed in the apparatus main body is composed of a forward inclined surface whose upper part protrudes forward and overhangs. As a result, the swing angle until the lid is opened and brought into a substantially horizontal state can be reduced.

  According to the invention of claim 3, the lid portion is connected to the main body portion by the hinge, and swings around the swing shaft formed by the hinge, so that the lid portion can be opened and closed close to or away from the main body portion. In addition, since further swinging of the lid is restricted by the swing limit angle of the hinge and the substantially horizontal state is maintained, the lid can be opened and closed and the substantially horizontal state can be maintained with a simple configuration. Can be done.

  According to the invention of claim 4, since the fixing means for fixing the placed warming bag is formed on the lid portion, the placed warming bag is prevented from being bent by its own weight. In addition, positioning and fixing can be reliably performed.

  According to the invention of claim 5, since the fixing means fixes the inlet and the outlet formed in the heating bag, the flexible tube extending from the inlet and the outlet is inadvertent due to its own weight. It is possible to reliably avoid the sagging in the direction, and to prevent the flow path from being blocked by the insertion of the flexible tube.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The blood purification apparatus according to the present embodiment includes an apparatus main body that performs blood purification treatment on a patient, and heats the replacement fluid by storing a warming bag in which the replacement fluid (liquid related to treatment) flows. A heating means for heating is disposed in the apparatus main body. As shown in FIGS. 1 to 3, the apparatus main body 1 provided with casters C on the bottom surface, a hanger 7, and a heating means 8 Consists mainly of.

  The apparatus main body 1 includes a blood purification apparatus capable of performing treatment such as hemodialysis (HD), hemodiafiltration (HDF), hemofiltration (HF), or continuous slow blood filtration (CHF), for example, a blood pump. 2, the fluid replacement pump 3, the bubble detector 4, the syringe pump 5, the liquid crystal monitor 6, and the like, are configured to have various devices for performing blood purification treatment on the patient. In the present embodiment, the present invention is applied to a multi-purpose dialysis apparatus capable of performing a plurality of types of treatments. However, instead of this, a replacement fluid can be injected into a patient and any of the above treatments or other It is good also as an apparatus for exclusive use which performs the treatment (plasma exchange, double filtration plasma exchange, etc.) exclusively.

  However, the upper surface 1b of the apparatus body 1 is substantially horizontal, and the blood pump 2, the replacement fluid pump 3, the bubble detector 4, the syringe pump 5 and the like are disposed on the upper surface 1b, and above the upper surface 1b. A liquid crystal monitor 6 is provided. The hanger 7 is formed in a straight line above the apparatus main body 1, and a plurality of hooks 7 a are formed along the longitudinal direction of the hanger 7. And can be held.

  In addition, the replacement fluid bag D at the bottom is configured to be connected to a warming bag B described later via a flexible tube K. As shown in FIG. 7, the warming bag B is composed of two sheet-like resin members that are overlapped and welded together, and a flow path Ba that is bent inward, and for introducing a replacement fluid into the flow path Ba. The introduction port Bb and the discharge port Bc for discharging the replacement fluid from the channel Ba are formed.

  The flexible tube K extended from the introduction port Bb is connected to the replacement fluid bag D via the replacement fluid pump 3, and the flexible tube K extended from the discharge port Bc is a blood circuit (not shown). It is configured to be connected to a predetermined part (such as a drip chamber). Thereby, the replacement fluid in the replacement fluid bag D is sent to the heating means 8 by the driving force (squeezing action) of the replacement fluid pump 3, heated by the heating means 8, and then reaches the blood circuit, and the patient Can be injected into the body.

  The warming means 8 is for warming the warming bag B and warming the replacement fluid flowing through the flow path Ba to a predetermined temperature (about the body temperature of the patient). As shown in FIG. It is disposed on the front side of the main body 1. More specifically, on the front side of the apparatus main body 1, a forward inclined surface 1 a that protrudes forward (left side in the figure) and overhangs is formed, and the heating means 8 is provided on the forward inclined surface 1 a. Is formed.

  As shown in FIGS. 3 to 5, the heating means 8 can be opened and closed by swinging about the lower swing shaft L, and the substantially horizontal state of the upper surface is maintained in the open state. When the lid 9 is in a closed state (see FIG. 8), the main body 10 can hold and hold the warming bag B between the lid 9 and the lid 9. And heating parts 9b and 10b formed on the surfaces of the lid part 9 and the main body part 10 facing each other.

  That is, as shown in FIG. 5, the lid portion 9 has a hinge 11 formed at a lower portion thereof, and swings around a swing axis L formed by the hinge 11 to be close to or separated from the main body portion 10. As shown in FIG. 4, in the open state, further swinging of the lid portion 9 is restricted by the swing limit angle of the hinge 11, and the upper surface (the heating bag B The mounting surface is substantially horizontal. In this way, the warming bag B is easily placed by opening the lid 9 while keeping the upper surface (the placement surface of the warming bag B) in a substantially horizontal state. The lid 9 is formed with a notch P for inserting and extending the introduction port Bb and the discharge port Bc of the heating bag B to the outside in the closed state.

  Further, a pair of locking portions R are formed on the rear edge of the lid portion 9, and when the lid portion 9 is closed, the locking portion R is engaged with the locked portion 10 a formed on the main body portion 10. It is configured to be locked and maintained in a closed state. An operation knob 9a is formed on the surface side of the lid portion 9. When the operation knob 9a is operated, the locking portion R and the locked portion 10a are unlocked, and the lid portion 9 is removed. It is configured to be able to swing to be in an open state.

  Furthermore, a plurality of (four in the present embodiment) convex portions 9c (fixing means) are formed on the back surface of the lid portion 9 (the surface on which the heating bag B is placed). It is comprised so that the heating bag B can be fixed by inserting the hole formed in the corner edge part of the heating bag B to 9c. Thus, when the heating bag B is sandwiched, the heating bag B placed on the lid portion 9 can be surely positioned and fixed while avoiding bending by its own weight.

  The heating parts 9b and 10b are made of a heater that can generate heat when energized. The lid 9 is closed and the heating bag B is sandwiched between the lid 9 and the main body 10 so that the heating bag B It is comprised so that it can heat by transferring heat, contacting the front and back. As a result, the replacement fluid supplied from the replacement fluid bag D is heated in the heating portions 9b and 10b in the course of flowing through the bent flow path Ba in the heating bag B, and then the predetermined portion such as a blood circuit is passed through. It is injected into the patient.

Next, the operation of the heating means 8 will be described.
First, in order to attach the warming bag B, an operator stands on the front side of the apparatus main body 1 and swings the lid 9 until it becomes substantially horizontal while operating the operation knob 9a (FIG. 4). And FIG. 5). And while warming bag B is mounted in the back surface (mounting surface) of the cover part 9, the said warming bag B is positioned and fixed by the convex part 9c (refer FIG.6 and FIG.7).

  Thereafter, the lid portion 9 is swung to be brought close to the main body portion 10, and the locking portion R is locked to the locked portion 10a to be closed. In this closed state, as shown in FIG. 8, the warming bag B is sandwiched while being in contact with the warming portions 9 b and 10 b, and the flexible tube K is externally (replacement fluid) at the notch P. The bag D and the replacement fluid pump 3 side) are extended. Thus, at the time of injecting the replacement fluid, if the heating portions 9b and 10b are energized to generate heat, the replacement fluid is heated.

  In order to remove the warming bag B, an operator stands on the front side of the apparatus body 1, operates the operation knob 9a, swings the lid portion 9 until it is substantially horizontal, and opens the convex portion 9c. The work is completed by removing the warming bag B from the lid portion 9 while removing the fixing. Accordingly, the lid portion 9 of the heating means 8 can be opened and closed by swinging about the lower swinging shaft L, and the warming bag B is mounted while being kept in a substantially horizontal state in the open state. Therefore, it is possible to reliably avoid the heating bag B from being bent by its own weight or the flexible tube K extending from the heating bag B from being drooped in an inadvertent direction. Therefore, attachment or removal work of the heating bag B with respect to the heating means 8 can be facilitated, and pinching of the flexible tube K extended from the heating bag B can be reliably prevented. The lid 9 may be detachable from the hinge 11 as long as the mounting surface (upper surface) of the heating bag B is held in a substantially horizontal state in the open state.

  Further, the surface on which the heating means 8 is disposed in the apparatus main body 1 is composed of the forward inclined surface 1a that protrudes forward and overhangs, so that the heating means 8 is also disposed along the forward inclined surface 1a. Thus, the swing angle until the lid portion 8 is opened and brought into a substantially horizontal state can be reduced. That is, when the heating means 8 is disposed on the vertical surface of the apparatus body 1, in order to open the lid portion 9 to a substantially horizontal state, it must be swung approximately 90 °, but according to the present embodiment, An inclination angle is given to the forward inclined surface 1a, and the mounting surface of the warming bag B can be made horizontal by opening it from there to a substantially horizontal state. Therefore, the workability at the time of opening and closing the lid portion 9 can be improved.

  In addition, the surface on which the heating means 8 is disposed in the apparatus main body 1 is composed of a forward inclined surface 1a that protrudes forward and overhangs. An increase in the size can be suppressed. In particular, since various devices (blood pump 2 and the like) for performing blood purification treatment on the patient are disposed on the front side of the apparatus body 1, when the heating means 8 is formed on the front side, Although the vertical dimension is required to be relatively large, according to the present embodiment, the front side is inclined forward, and the heating means 8 is disposed on the forward inclined surface 1a. The effect of suppressing the size of is great.

  Furthermore, since the heating means 8 is disposed by overhanging the front side of the apparatus main body 1, a large space for the operator's legs to enter can be secured below. Therefore, the operator can work closer to the apparatus body 1 by the amount corresponding to the overhang (blood purification treatment, attachment or removal of the heating bag B to the heating means 8, etc.), and workability can be improved. .

  On the other hand, the lid portion 9 is connected to the main body portion 10 by a hinge 11 and swings around a swing axis L formed by the hinge 11 so that the lid portion 9 can be opened and closed close to or away from the main body portion 10. In addition, since further swinging of the lid portion 9 is restricted by the swing limit angle of the hinge 11 and the substantially horizontal state is maintained, the lid portion 9 can be opened and closed and the substantially horizontal state can be maintained with a simple configuration. Holding can be performed. The lower portion of the lid portion 9 and the main body portion 10 are swingably connected, and when the lid portion 9 is in the open state, the placement surface of the heating bag B (that is, the surface of the heating portion 9b) is approximately. Any other connecting means may be used instead of the hinge as long as it is held in a horizontal state.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, as shown in FIG. 9, the heating bag is placed on the back surface of the lid portion 9 (the mounting surface of the heating bag B). A clamping means Bd (fixing means) for clamping and fixing the inlet Bb and the outlet Bc of B may be formed. In this case, since the holding means Bd fixes the inlet Bb and the outlet Bc formed in the warming bag B, the flexible tube K extended from the inlet Bb and the outlet Bc is not damaged by its own weight. It is possible to reliably avoid the sagging in the prepared direction, and to prevent the flow path from being blocked by the flexible tube K being sandwiched.

  The heating means for heating the warming bag B can be opened and closed by swinging the lid 9 about the lower swinging shaft L, and the upper surface of the warming bag 9 can be opened and closed. It is sufficient that the heating bag B can be placed while maintaining the horizontal state. For example, as shown in FIG. 10, the front inclined surface is not formed on the front side of the apparatus main body 1, and is substantially vertical. Heating means 8 may be disposed on the surface 1a ′. Furthermore, as shown in FIG. 11, the heating means 8 is disposed on the side surface (for example, the right side surface 1a ″) of the apparatus main body 1, and the lid portion 9 can be opened and closed on the side surface. It is good also as what enabled the heating bag B to be mounted, hold | maintaining the substantially horizontal state of an upper surface.

  Furthermore, the replacement fluid may be any fluid that can be injected into blood led out of the body, and may be a replacement replenisher such as a blood product or a drug, or blood to be injected into a patient. That is, it is sufficient that the liquid to be poured into the heating bag is a liquid to be injected into the patient directly or indirectly related to the treatment. The heating bag to be applied is not limited to the one as in the present embodiment, and any heating bag may be used as long as it can be accommodated by the heating means 8 while circulating the replacement fluid. For example, a tube made of synthetic resin is planar. It may be wrapped around.

  A lid that can be opened and closed by swinging about a lower swing shaft, and that can hold the warming bag while the upper surface is maintained in a substantially horizontal state in the open state, and the lid is closed. A main body that can hold and hold the heating bag between the lid and the lid and the main body that are opposed to each other. If it is a blood purification apparatus provided with a warming part, it can be applied to ones having different external shapes or those having other functions added.

The front view which shows the blood purification apparatus which concerns on embodiment of this invention Right side view showing the blood purification device (with the lid closed) Right side view showing the blood purification device (with the lid open) Right side view showing warming means (lid portion in open state) in the blood purification apparatus The top view which shows the cover part of the heating means Right side view showing the heating means (state in which a heating bag is placed on the lid) The top view which shows the state which mounted the heating bag in the cover part of the heating means A right side view showing a state in which the heating bag is held by the heating means. The top view which shows the cover part (state which mounted the heating bag) of the heating means in other embodiment of this invention. A right side view showing a blood purification apparatus according to yet another embodiment of the present invention (a heating means is formed on a substantially vertical surface). The right view which shows the blood purification apparatus which concerns on other embodiment (those with which the heating means was formed in the side surface of an apparatus main body) of this invention. Front view showing a conventional blood purification apparatus Right side view showing a conventional blood purification device It is a figure which shows the heating means in the conventional blood purification apparatus, Comprising: (a) Top view (b) Front view The figure which shows the state which attached the heating bag to the heating means in the conventional blood purification apparatus

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 1a Forward inclined surface 1b Upper surface 2 Blood pump 3 Fluid replacement pump 4 Bubble detector 5 Syringe pump 6 Liquid crystal monitor 7 Hanger 8 Heating means 9 Lid 10 Main body 11 Hinge D Fluid replacement bag B Heating bag L Oscillating shaft

Claims (5)

In order to warm up the fluid related to the treatment such as the replacement fluid, including the apparatus main body for performing the blood purification treatment for the patient, and warming while containing the heating bag in which the fluid related to the treatment such as the replacement fluid flows In the blood purification apparatus in which the heating means is disposed in the apparatus body,
The heating means includes
A lid that can be opened and closed by swinging about a lower swing shaft, and can hold the heating bag while maintaining a substantially horizontal state of the upper surface in an open state;
A main body capable of holding and holding the warming bag with the lid when the lid is in a closed state;
A heating part that is formed on the mutually opposing surfaces of the lid part and the main body part, and that can heat the contained heating bag;
A blood purification apparatus comprising:   2. The blood purification apparatus according to claim 1, wherein the surface of the apparatus main body on which the heating means is disposed is a forward inclined surface with an upper portion protruding forward and overhanging.   The lid portion is connected to the main body portion by a hinge and swings around a swing shaft formed by the hinge so that the lid portion can be opened and closed close to or away from the main body portion. 3. The blood purification apparatus according to claim 1, wherein further swinging of the lid portion is restricted by a swing limit angle of the hinge, and a substantially horizontal state is maintained.   The blood purification apparatus according to any one of claims 1 to 3, wherein a fixing means for fixing the placed warming bag is formed in the lid portion.   The heating bag is formed with an inlet for introducing a liquid related to treatment such as a replacement fluid into an internal flow path and a discharge port for discharging a liquid related to the treatment such as a replacement fluid from the flow path. 5. The blood purification apparatus according to claim 4, wherein the fixing means fixes the introduction port and the discharge port.

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