JP3050958B2 - Blood processing circuit controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to plasma separation, hemodialysis,
The present invention relates to a blood processing circuit control device for controlling a blood processing circuit such as gas exchange and adsorption.

[0002]

2. Description of the Related Art Conventionally, in a blood processing method by extracorporeal circulation using a blood processing circuit, a pump for transferring blood, an automatic tube clamp for opening and closing a tube connecting a blood processor and a container, and their operations are described. A control device to be controlled and their power supplies are required, and the device configuration is complicated.

[0003] Conventionally, in order to be able to freely perform blood treatment at any place of use with a simple device,
In some plasma separation devices, blood is transferred by a head and a tube that connects a blood processor and a container is opened and closed by forceps.

[0004]

However, in the prior art, operability is poor because the opening and closing of the tube is controlled by forceps at the time of cleaning and priming.

[0005] In particular, since the blood processing circuit has a plurality of tubes, it is difficult to entangle the tubes, and to identify which forceps provided on each tube should be opened or closed next.

An object of the present invention is to provide a blood processing circuit control device capable of performing cleaning and priming without error with a simple device configuration.

[0007]

According to the present invention, in controlling a blood processing circuit in which a blood processing device and a container are connected by a tube, a predetermined portion of the tube is clamped or unclamped to flow. In a blood processing circuit control device including a tube clamp device that controls opening and closing of a path, the tube clamp device includes a roller that is rotated by an operation unit, and a tube support that is disposed around the roller and that supports the tube on the back side. The roller has a convex portion for pressurizing and clamping the tube and a concave portion for releasing and unclamping the tube connected to its outer peripheral surface, and the operating portion has a display portion for displaying the current operating position. It is prepared for.

According to a second aspect of the present invention, in the first aspect of the present invention, the tube clamp device further comprises:
A plurality of rollers rotated by a single operation unit, and a tube support disposed around each roller and supporting each of the plurality of tubes on the back side, each roller presses the corresponding tube and presses the corresponding tube. The convex part to be clamped and the concave part to be unclamped by releasing the pressure are connected to the outer peripheral surface thereof.

According to a third aspect of the present invention, in the first or second aspect of the present invention, further, the tube clamping device switches the tube support between a working position and a non-working position around each roller. It is made possible.

[0010]

According to the first aspect of the present invention, the following operations are provided.

The tube clamping device has a clamp mode in which a tube is inserted between a tube support and a roller, and the roller is rotated by an operation unit, whereby the tube is pressed and clamped by a convex portion of the roller. It is possible to continuously switch and set an unclamping mode in which the tube is released from the pressure by the concave portion of the roller and unclamped.

At this time, the display unit provided with the operation unit displays the current operation position of the operation unit, so that it is possible to recognize the current stage of the opening / closing control state of the tube by the rollers. Of course, the opening / closing control state of the next stage to be applied to the tube by the roller can be reliably changed only by recognizing that the operation section has been changed to the next operation position by the display section.

According to the second aspect of the present invention, the following operations are provided.

In the tube clamp device, each of a plurality of tubes is inserted and arranged between a tube support and a plurality of rollers, and each of the corresponding tubes is opened and closed by each roller rotated by a single operation unit. Control.

Therefore, the plurality of tubes are aligned without being entangled.

The clamping time or the unclamping time to be given to each tube by each roller is determined in advance by setting the positions of the concave and convex portions provided on the outer peripheral surface of each roller. Therefore, the current open / close control state of the tube by each roller can be reliably recognized only by confirming the current operation position of the single operation unit on the display unit. Of course, the opening / closing control state of the next stage to be given to the tube by each roller can be reliably changed only by recognizing that the operation section has been changed to the next operation position by the display section.

According to the third aspect of the present invention, the following operations are provided.

In the tube clamp device, the tube can be inserted between the rollers by switching the tube support to the working position around the roller, and the tube can be released by setting the tube supporting member to the non-working position.

[0019]

FIG. 1 is a schematic diagram showing an embodiment of a tube clamp device, FIG. 2 is a schematic diagram showing an uneven state of each roller constituting the tube clamp device, and FIG. 3 is an example of a plasma separation circuit control device. FIG. 4 is a schematic view, FIG. 4 is a front view showing a plasma separation circuit control device, FIG. 5 is a circuit diagram showing an example of a plasma separation system, and FIG. 6 is a sectional view showing an anticoagulant introduction needle.

FIGS. 3 and 4 show the plasma separation circuit control device 10.
Controls the blood processing circuit of the plasma separation system shown in FIG.

In FIG. 5, 11 is a plasma separation filter,
15 is a priming solution introduction line, 16 is a priming solution introduction needle, 17 is an anticoagulant introduction line, 18 is an anticoagulant introduction needle, 19 is a blood collection line, 20 is a blood collection needle, 21
Denotes a blood sampling line, 22 denotes a clip tip, 23 denotes a blood return line, and 24 denotes a drainage line.

In FIG. 5, 101 is a blood collection bag,
102 is a sampling bag and 103 is a drainage bag.

In the plasma separation system shown in FIG. 5, the priming liquid introduction line 15 and the anticoagulant introduction line 17 are connected in series, and the blood collection line 19 and the drainage line 24 are connected in series. doing.

As shown in FIG. 6, an anticoagulant introduction needle 18 is connected to the tip of the anticoagulant introduction line 17 via a hub 18A, and an anticoagulant introduction line 15 is connected to the end of the priming solution introduction line 15. A cap 18B, which is joined to the hub 18A so as to enclose the agent introduction needle 18 and partially has a thin-walled weak portion 18D, is provided. The anticoagulant introduction needle 18 can be used by breaking the thin fragile portion 18D of the cap 18B. The cap 18B has a through hole 18C communicating with the priming liquid introduction line 15. The introduction needle 18 is, for example, 15 gauge.

A hub 20 is provided at the tip of the blood collection line 19.
A is connected to the blood collection needle 20 via the hub A so that the distal end of the drainage line 24 covers the blood collection needle 20.
A cap 20B is provided, which is joined to OA and partially has a thin brittle portion (not shown). The blood collection needle 20 can be used by breaking the thin weak portion 20D of the cap 20B. The cap 20B is connected to the drain line 2
4 is provided with a through-hole 20 </ b> C (not shown) that communicates with 4. The blood collection needle 20 is, for example, 17 gauge.

The hub 20A, the cap 20B, the through hole 20C, and the easily breakable portion 20D have substantially the same configuration as the hub 18A, the cap 18B, the through hole 18C, and the easily breakable portion 18D.

The length of the priming solution introduction line 15 is 10 cm, the length of the anticoagulant introduction line 17 is 70 cm, the length of the blood collection line 19 is 146 cm, and the length of the blood return line 23 is 17 cm.
cm, and the length of the drainage line 24 is 20 cm.

However, the plasma separation circuit control device 10 is provided on the gantry 30 and has a filter holder 31 for holding the filter 11 and the gantry 30.
7, 19, 21 and 23 each tube 32A-3
2D and each of these tubes 32A-32D
And a blood collection bag 1 by clamping or unclamping a predetermined portion of the blood sampling bag 33 to control the flow path.
01, an upper hook 35 supporting the blood collection bag 101,
It has a lower sampling hook 38 for supporting the sampling bag 102 and the drainage bag 103 in an overlapping manner.

Incidentally, the plasma separation circuit control device 10 is
0 is provided with a pole clamp 41 on the back thereof, and is fixedly installed on the infusion stand 42 by the pole clamp 41 (see FIG. 3). The blood collection bag 101 is supported on the first hook 43 of the infusion stand 42, and the priming liquid bag 45 such as physiological saline and the anticoagulant bag 46 can be sequentially supported on the second hook 44.

However, as shown in FIG. 1, the tube clamp device 33 includes four rollers 51 to 54 rotated by a single dial operating portion 50, and each roller 51
And a tube support member 55 disposed around the tube support 54 to support each of the tubes 32A to 32D on the back surface.
Each of the rollers 51 to 54 is keyed to a rotating shaft directly connected to the dial operation unit 50.

Each of the rollers 51 to 54 is provided with a convex portion for pressurizing and clamping the corresponding tube 32A to 32D and a concave portion for releasing and unclamping the corresponding tube 32A. Reference numeral 50 additionally includes a display unit 56 for displaying the current operation position.

Here, the clamping time or the unclamping time to be given to each of the tubes 32A to 32D by the rollers 51 to 54 of the tube clamp device 33 depends on the blood processing procedure in which the tube clamp device 33 is used. The position is determined in advance by setting the positions of the concave and convex portions on the outer peripheral surfaces of the rollers 51 to 54. In this embodiment, the anticoagulant introduction line 1 is used as a countermeasure for the washing priming operation of the plasma separation system.
The roller 51 corresponding to the tube 32A of the operating unit 5
The operation position A set to 0 is clamped at A, unclamped at B, clamped at C and D, unclamped at E and F, and clamped at G (FIG. 2).
(A)). The tube 32B of the blood collection line 19
Are clamped at operation positions A and B set by the operation unit 50, unclamped at C,
Clamp at D, Unclamp at E, F, G
(See FIG. 2B). Further, the roller 53 corresponding to the tube 32C of the blood collection line 21 and the roller 54 corresponding to the tube 32D of the blood return line 23 have the same shape, and are clamped at operation positions A, B, and C set by the operation unit 50. Unclamp at D, Clamp at E, Unclamp at F,
G is a clamp (see FIG. 2C).

Next, a description will be given of a washing priming operation of the plasma separation system using the above-described plasma separation circuit controller 10.

A. Circuit preparation (1) Set the filter 11 on the holder 31 (holder 3
1 is set to the downward position).

(2) Blood collection bag 101, blood collection bag 10
2 and the drainage bag 103 is supported by the lower hook 38.

(3) The operation section 50 of the tube device 33 is set to the operation position A, the tube support 55 is opened to the non-working position, and the tubes 32A of the respective lines 17, 19, 21 and 23 are opened.
~ 32D are set around the corresponding rollers 51-54,
The tube support 55 is closed to the working position. In this operation position A, all the tubes 32A to 32D of the lines 17, 19, 21, and 23 are clamped and closed.

B. Priming (1) The priming liquid bag 45 is supported by the second hook 44 of the infusion stand 42.

(2) Connect the introduction needle 16 of the priming solution introduction line 15 to the priming solution bag 45.

(3) By supporting the blood collection bag 101 on the lower hook 38 and setting the operation section 50 of the tube clamp device 33 to the operation position B, the anticoagulant introduction line 17
The tube 32A is unclamped and opened, and about 200 ml of the priming solution is put into the blood collection bag 101.

(4) Operation section 5 of tube clamp device 33
By setting 0 to the operation position C, the tube 32A of the anticoagulant introduction line 17 is clamped and closed, and the tube 32B of the blood collection line 19 is unclamped and opened to support the blood collection bag 101 on the upper hook 35. . As a result, the blood collection line 19 is about 20 ml (about 10 ml).
Priming solution). At this time, blood collection bag 1
Remove the air inside 01.

(5) By setting the dial operating section 50 of the tube clamp device 33 to the operation position D, the tube 32B of the blood collection line 19 is clamped and closed (32A is closed as it is), and the blood collection line 21 is closed. ,
The tubes 32C and 32D of the blood return line 23 are unclamped and opened. Then, the blood collection bag 101 is supported by the first hook 43 of the infusion stand 42, and the priming liquid in the blood collection bag 101 is allowed to flow to perform priming in the filter 11. At this time, the tube at the outlet of the filter 11 is opened and closed to remove the air remaining in the filter 11.

(6) When the blood collection bag 101 is empty, the operation section 50 of the tube clamp device 33 is set to the operation position E to clamp the tubes 32C and 32D of the blood collection line 21 and the blood return line 23. Then, the tubes 32A and 32B of the anticoagulant introduction line 17 and the blood collection line 19 are unclamped and opened, and a priming solution of about 20 ml (about 10 seconds) is allowed to flow.
After the second washing, the tube clamp device 3
By setting the third operation unit 50 to the operation position F, the tube 32B of the blood collection line 19 is clamped and closed.

(7) In the above (6), since the operation unit 50 of the tube clamp device 33 is set to the operation position F, each tube 32 of the blood collection line 21 and the blood return line 23 is set.
C and 32D are unclamped and opened (32A
Is opened, and about 200 ml of the pluming solution is flowed, and the filter 11, the blood collection line 21, and the blood return line 23 are washed for the second time. Thereafter, the operation unit 50 of the tube clamp device 33 is moved to the operation position G. By setting, each tube 32C, 32D of the blood collection line 21 and the blood return line 23
Is clamped and closed (all 32A and 32B are also clamped and closed).

(8) The drain line 24 and the priming liquid introduction line 15 are sealed with a tube sealer and separated.

Next, the operation of the above embodiment will be described.

The tube clamp device 33 has a plurality of tubes 32A to 32D inserted and arranged between a tube support 55 and a plurality of rollers 51 to 54, and each of the rollers 32 is rotated by a single operation unit 50. 51-5
4 controls the opening and closing of each of the corresponding tubes 32A to 32D.

Accordingly, the plurality of tubes 32A to 32D are aligned without being entangled.

The clamping time or the unclamping time to be given to each of the tubes 32A to 32D by each of the rollers 51 to 54 is determined by setting the positions of the concave and convex portions provided on the outer peripheral surface of each of the rollers 51 to 54. Predetermined. Therefore, only by confirming the current operation position of the single operation unit 50 by the display unit 56, each of the rollers 51 to 5
4 can reliably recognize the current opening / closing control state of the tubes 32A to 32D. Needless to say, the opening / closing control state of the next stage to be applied to the tubes 32A to 32D by the rollers 51 to 54 is also achieved only by recognizing by the display unit 56 that the operation unit 50 has been switched to the next operation position. The setting can be reliably changed.

The tube clamp device 33 switches the tube support 55 to a working position around the rollers 51 to 54, thereby inserting the tubes 32A to 32D between the rollers 51 to 54 and setting the tube 32A to a non-working position. Thus, the tubes 32A to 32D can be released.

[0050]

As described above, according to the present invention, it is possible to obtain a blood processing circuit control device capable of performing cleaning and priming without error with a simple device configuration.

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of a tube clamp device.

FIG. 2 is a schematic diagram showing an uneven state of each roller constituting the tube clamping device.

FIG. 3 is a schematic diagram showing an example of a control device for a plasma separation circuit.

FIG. 4 is a front view showing a plasma separation circuit control device.

FIG. 5 is a circuit diagram showing an example of a plasma separation system.

FIG. 6 is a sectional view showing an anticoagulant introduction needle.

[Explanation of symbols]

 Reference Signs List 10 plasma separation circuit control device 32A to 32D tube 33 tube clamp device 50 operation unit 51 to 54 roller 55 tube support 56 display unit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-56-49156 (JP, A) JP-A-63-139558 (JP, A) JP-A-4-49973 (JP, A) 118754 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A61M 1/14 A61M 1/02

Claims (3)

(57) [Claims] 1. A blood processing circuit control comprising a tube clamp device for clamping or unclamping a predetermined portion of a tube to control opening and closing of a flow path when controlling a blood processing circuit in which a blood processing device and a container are connected by a tube. In the apparatus, a tube clamp device includes a roller rotated by an operation unit, and a tube support disposed around the roller and supporting the tube on the back side, and the roller has a convex portion that presses and clamps the tube. A blood processing circuit control device comprising: a concave portion for releasing pressure and unclamping connected to an outer peripheral surface thereof; and an operation unit additionally including a display unit for displaying a current operation position. 2. The apparatus according to claim 1, wherein the tube clamping device includes a plurality of rollers rotated by a single operation unit, and a tube support disposed around each roller and supporting each of the plurality of tubes on the back side. 2. The blood processing circuit control device according to claim 1, wherein each roller has a convex portion for pressing and clamping the corresponding tube and a concave portion for releasing and unclamping the corresponding tube connected to the outer peripheral surface thereof. 3. The blood processing circuit control device according to claim 1, wherein the tube clamp device can switch and set the tube support between a working position and a non-working position around each roller.