JP3043534U - Inverted chamber holder - Google Patents

Abstract

(57) Abstract: To perform priming in a blood circuit of a dialysis machine, the left and right chambers are attached to their respective holders as a means for filling a cleaning and disinfecting solution in the chamber and the circuit. A reversible chamber holder that can be reversed. SOLUTION: In a chamber holder 1 provided with left and right holders 4 and 4 for removably sandwiching an arterial chamber 2 and a venous chamber 3 in a blood circuit of a dialysis machine, the left and right holders 4 and 4 are separately fixed. The reversing plates 5 and 5 are rotatably provided on the left and right protrusions of the reversing shaft 7 fixed above the support column 6, and the reversing plates 5 and 5 are formed by the engaging grooves 8 formed in the respective reversing plates 5 and 5. Is locked to both the left and right sides of the column 6, and the elastic members 9, 9 for urging the reversing plates 5 and 5 toward the column 6 are fixed to the left and right protrusions of the reversing shaft 7. The reversal plates 5 and 5 locked to the column 6 are rotated against the elastic force of the elastic members 9 and 9,
The support 6 is locked at the reverse position of 5.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is a reversible chamber in which the arterial chamber and the venous chamber are inserted into the left and right holders with a single touch when priming to wash and disinfect the dialyzer, arterial circuit, and venous circuit used for artificial dialysis. It is related to the holder.

[0002]

[Prior art]

 When performing artificial dialysis, in order to avoid the patient from being contaminated with bacteria, dialysis, arterial circuit and venous circuit are filled with physiological saline (hereinafter referred to as "saline water") to clean and disinfect these circuits. Need to be implemented.

This priming will be described with reference to FIGS. 6 and 7. The illustrated dialyzer 30, arterial circuit 31, and venous circuit 32 are sterilized in advance and sold in a bag.

In use, the bag is opened and then taken out, and the dialyzer 30, the arterial circuit 31, and the venous circuit 32 are connected with respective tubes. Priming is performed by filling and circulating saline in these circuits. To do.

However, if air bubbles attached to the inner wall of the tube of the arterial circuit 31 are sent into the dialyzer 30 during this priming, the air bubbles block the permeable membrane in the dialyzer 30, which restricts the flow of dialysate. , It hinders blood circulation and significantly reduces dialysis efficiency.

Therefore, in priming, as shown in FIG. 6, the arterial circuit 31 is not connected to the arterial side connection port 34 of the dialyzer (however, a wet dialyzer) 30, and the upper and lower sides of the arterial chamber 35 are 180 °. It is necessary to turn it over so that the air outlet is facing up before driving the blood pump 36.

Then, by the liquid feeding operation of the pump 36, the saline water flowing down from the saline saline bag 37 is introduced into the tube to fill the inside of the arterial chamber 35. At this time, the air pushed out of the tube on the upstream side of the arterial chamber 35 is driven to the downstream side of the arterial chamber 35 and is discharged into the air from the connection port 38 on the downstream side of the arterial chamber 35.

Next, after confirming that the chamber 35 and the tube have no air tank, the tube connection port 38 of the arterial circuit 31 is connected to the arterial side connection port 34 of the dialyzer 30, and the blood pump 36 is connected. By driving the dialyzer 30 to circulate saline in the dialyzer 30 and to circulate in the tube on the upstream side of the venous circuit 32 to push out the air inside the venous chamber 39 to fill the venous chamber 39 with saline. Then, the saline solution is circulated in the tube on the downstream side of the vein circuit 32, and the saline solution is discharged from the outlet for a predetermined time to wash and decontaminate the dialyzer 30, the arterial circuit 32 and the vein circuit 32 as a whole.

Then, the arterial chamber 35 and the venous chamber 39 are turned upside down from the state shown in FIG. 6 to the state shown in FIG.

[0010]

[Problems to be solved by the device]

 As described above, in the above priming, it is necessary to reverse the arterial chamber 35 and the venous chamber 39 to return to the normal dialysis treatment use state.

Further, as shown in FIG. 7, the air in the tube on the side of the venous circuit 32 is separated into gas and liquid in the venous chamber 39 by the drop pressure and is discharged or discharged from the connection port of the venous circuit. The air in 32 does not enter the dialyzer blood passages. Therefore, the air in the dialyzer 30 can be removed by inverting only the arterial chamber 35 without inverting the venous chamber 39. Therefore, in order to perform such priming, only the arterial chamber 35 needs to be removed. The purpose is achieved by reversing.

Conventionally, the holders for mounting these left and right chambers 35, 39 are fixed to the support column, and when the respective chambers 35, 39 are turned upside down, the chambers 35, 39 are fixed. It was necessary to remove the from the holder, turn it upside down, and then reattach it to the holder.

The object of the present invention was made in view of the above circumstances, and left and right chambers are provided as means for filling the chamber and the circuit with a cleaning / disinfecting solution in order to perform priming in the blood circuit of the dialysis machine. It is an object of the present invention to provide a reversible chamber holder which can be reversed to the left and right independently with the respective holders attached to each holder.

[0014]

[Means for Solving the Problems]

 In order to achieve the above object, the inversion type chamber holder of the present invention is a chamber holder having left and right holders for detachably sandwiching an arterial chamber and a venous chamber in a blood circuit of a dialysis device. Reversing plates with separate holders are separately installed on the left and right protrusions of the reversing shaft fixed above the columns, and each reversing plate is attached to the columns by the engaging groove formed in each reversing plate. The inversion plate locked to the column is secured to the left and right projections of the inversion shaft by elastic members that are locked to both the left and right sides and bias the respective inversion plates toward the column. Is rotated against the elastic force of the elastic member so as to be locked to the column at the inversion position of the inversion plate.

Further, the engaging groove formed in the reversing plate is shaped so as to easily release the locked state with respect to the column when reversing the reversing plate against the elastic force of the elastic member. Is preferred.

The elastic member preferably comprises a rubber tube.

Further, it is preferable that tube hooks that elastically clamp the tube are formed at both ends of the left and right holders.

[0018]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing a state in which an arterial chamber and a vein chamber are inserted into a reversible chamber holder according to the present invention in a normal state. FIG. 2 is a front view showing a state where the left holder of FIG. 1 is inverted. FIG. 3 is a top view of FIG. FIG. 4 is a top view of FIG. 5A to 5C are side views for explaining the reversing operation of the reversing plate.

The inversion type chamber holder of the present invention is a chamber holder 1 having left and right holders 4 and 4 for detachably sandwiching each of an arterial chamber 2 and a venous chamber 3 in a priming circuit of a dialysis machine, Reversal plates 5 and 5 in which the left and right holders 4 and 4 are separately fixed are rotatably provided on the left and right protrusions of a reversal shaft 7 fixed above the column 6 and formed on the respective reversal plates 5 and 5. The reversing plates 5 and 5 are locked to the left and right sides of the support column 6 by the engaging grooves 8, and the elastic members 9 that bias the reversing plates 5 and 5 toward the support column 6 are provided on the left and right sides of the reversing shaft 7. By being fixed to the projecting portion, the reversing plates 5 and 5 locked to the column 6 are rotated against the elastic force of the elastic member 9, and are locked to the column 6 at the reversing position of the reversing plates 5 and 5. It is something that is done.

The inversion chamber holder 1 having such a configuration will be described in detail. As shown in FIG. 3 or 4, the column 6 has a circular cross section, and the column 6 has an inversion of a small diameter above the column 6. The shaft 7 is fixed so as to project to the left and right sides.

Further, a through hole 10 for inserting the reversing shaft 7 is formed in the center of each bent piece 5a of the metal reversing plates 5 and 5 which are bent into an L-shaped cross section. A shallow curved curved or V-shaped engagement groove 8 is formed at a position passing through 10.

Then, as shown in FIG. 3, by inserting the through holes 10 of each reversing plate 5 into the left and right protrusions of the reversing shaft 7 protruding on both the left and right sides of the column 6, the column 6 is sandwiched. The reaction plates 5 and 5 are bound together, and in this state, elastic members 9 such as rubber tubes are inserted into the left and right protrusions of the reversing shaft 7, and the stator 11 is attached to the left and right end parts of the reversing shaft 7. By being fixed, the elastic force of the elastic member 9 acts, and the left and right reversing plates 5 and 5 are elastically biased toward the column 6.

A coil spring or the like may be used as the member used for the elastic member 9.

Further, as shown in FIG. 1, holders 4 and 4 made of metal plates are horizontally fixed to the upper ends of the left and right reversing plates 5 and 5, respectively.

As shown in FIG. 3, these left and right holders 4 and 4 form a curved chamber holding portion 13 having a throttle opening having a diameter slightly smaller than the outer diameter of the arterial chamber 2 or the vein chamber 3. Then, the chambers 2 and 3 are elastically sandwiched by pushing the chambers 2 and 3 through the apertures, and the chambers 2 and 3 are pulled out to widen the apertures and take out from the chamber holder 13. You are able to do so.

As shown in FIG. 1 or 3, closing members 15, 15 are rotatably provided by pins 16 on the opening sides of the chamber holding portions 13, 13 of the left and right holders 4, 4. At the tip of the closing member 15, a hooking piece 17 for holding the upper side of the holder 4 is formed, and a finger hooking piece 15a is formed by bending so that the closing member 15 is inverted as shown in FIG. From the state where the chamber holding portion 13 is released, the finger is hooked on the finger holding piece 15a, the closing member 15 is rotated around the pin 16, and the hooking piece 17 is hooked on the holder 4, whereby the chamber holding portion 13 is held. Can be closed.

Further, as shown in FIG. 3, U-shaped tube hooks 12 and 12 for elastically sandwiching the tube 14 are formed at both ends of the holders 4 and 4, respectively, to hold the left and right chambers. After fitting the chambers 2 and 3 into the parts 13 and 13, the respective tubes 14 can be locked to the tube hooks 12 and 12.

According to the above-mentioned configuration, as shown in FIG. 3, the left and right reversing plates 5, 5 are always urged toward the column 6 by the elastic force of the elastic members 9, 9, and the reversing plates 5, 5 are A stable fixed state is maintained at a position where the engagement grooves 8 and 8 are locked along the side portions of the support column 6.

Then, when a finger is put on the other bent piece 5b of the reversing plate 5 on one side in FIG. 5A showing this state and the reversing plate 5 is rotated in the reversing direction, the engaging groove 8 of the reversing plate 5 becomes smooth. Since it is formed in a curved shape or a V-shape, it does not lift the reversing plate 5 in the direction of separating from the column 6 and engages against the elastic force of the elastic member 9 as shown in FIG. 5 (b). The groove 8 is released from the locked state with respect to the support column 6 by riding on the side of the support column 6, and as shown in FIG. 5 (c), when the reversal plate 5 is rotated to the reversal position, the engagement of the reversal plate 5 is stopped. The mating groove 8 is re-engaged with the column 6, and in this state, the elastic member 9 is urged to maintain a stable fixed state.

A method of using the reversible chamber holder 1 of this embodiment will be described. The left and right chambers 2 and 3 are fitted into the left and right chamber holders 13 and 13 in FIGS. As described above, the closing member 15 is laid horizontally to bring the chamber holding portion 13 into the closed state, and the same operation is performed on the left arterial chamber 2 to close the left and right chamber holding portions 13 and 13. It is closed at 15, 15.

Further, the tubes 14 and 14 are inserted and attached to the left and right tube hooks 12 and 12 to be in a hooked state.

The state of FIG. 1 is a normal dialysis treatment state, and in order to perform priming as shown in FIG. 6, for example, the left reversing plate 5 is opposed to the elastic force of the elastic member 9 in the above-described manner. 2 and 4, the arterial chamber 2 is inverted and the engaging groove 8 of the inverting plate 5 is locked to the column 6. If necessary, the inverting plate 5 on the right vein chamber 3 side is also inverted, and priming as shown in FIG. 6 is performed.

Then, when the priming is completed, it is possible to reverse the state of the normal dialysis treatment of FIG. 1 by the reverse operation of the above.

[0035]

[Effect of the invention]

 As described above, the reversible chamber holder of the present invention holds the left and right pulse chambers and vein chambers in one-touch with the left and right holders as a means for filling the cleaning and disinfecting solution in the chamber and circuit for priming. The left and right chambers can be turned upside down independently, one side at a time.

In this reversing operation, the engaging groove of the reversing plate is locked to the column and elastically urged by the elastic member, so that this locked state is maintained in a stable fixed state. It is possible to easily release the engagement state of the reversal plate engaged with the column and return to the engagement state of the reversal position by rotating in the reverse direction as it is without lifting it in the direction of separating from the column. it can.

Therefore, according to the reversible chamber holder of the present invention, the left and right chambers can be reversed 180 ° by one-touch independently with the left and right chambers attached to the left and right holders. Instead of removing, reversing and mounting the chambers, the air outlet in each chamber can be directed upwards to fill the saline with the reversal operation of the holder, which allows the chambers and circuits to Priming can be performed to expel air layers and air bubbles for reliable cleaning and disinfection, and a much easier priming operation compared to conventional chamber holders where the chamber is removed, inverted and reinserted. It will be possible.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which an arterial chamber and a venous chamber are inserted in a normal state in a reversible chamber holder according to the present invention.

FIG. 2 is a front view showing a state in which the holder on the left side of FIG. 1 is inverted.

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a top view of FIG.

5A to 5C are side views for explaining the reversing operation of the reversing plate.

FIG. 6 is a diagram showing a priming circuit of the dialysis machine, showing a state during priming in which the arterial chamber and the venous chamber are reversed.

FIG. 7 is a diagram showing a priming circuit of a dialysis machine, showing a state in which an arterial chamber and a venous chamber are returned to a normal dialysis state.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 ... Chamber holder 2 ... Arterial chamber 3 ... Vein chamber 4 ... Holder 5 ... Reversal plate 6 ... Strut 7 ... Reversal shaft 8 ... Engagement groove 9 ... Elastic member 10 ... Through hole 11 ... Stator 12 ... Tube hook 13 ... Chamber Holding portion 14 ... Tube 15 ... Closing member 16 ... Pin 17 ... Hooking piece

Claims (4)

[Utility model registration claims] 1. A chamber holder having left and right holders for removably sandwiching an arterial chamber and a venous chamber in a blood circuit of a dialysis machine, wherein a reversing plate having the left and right holders separately fixed is provided above a column. The left and right protrusions of the fixed reversing shaft are rotatably provided, and the respective reversing plates are locked by the engaging grooves formed in the respective reversing plates to the left and right sides of the support column, and the respective reversing plates are An elastic member that biases the column is fixed to the left and right protrusions of the inversion shaft, so that the inversion plate locked to the column rotates against the elastic force of the elastic member, A reversible chamber holder, wherein the reversal plate is locked at the reversal position of the reversal plate. 2. The engaging groove formed in the reversing plate is shaped so as to easily release the locked state with respect to the column when reversing the reversing plate against the elastic force of the elastic member. The reversible chamber holder according to claim 1, wherein: 3. The inversion type chamber holder according to claim 1, wherein the elastic member is made of a rubber tube. 4. The reversible chamber holder according to claim 1, wherein tube hooks for elastically holding the tube are formed at both ends of the left and right holders.