JP3145852B2 - Body fluid treatment circuit and drip chamber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit for treating body fluid used for extracorporeal circulation of blood such as hemodialysis, blood filtration, plasma exchange and the like, and to an improvement of a drip chamber attached to the circuit, and particularly to an extracorporeal circuit. It integrates a body fluid processing circuit that integrates functional parts such as a drip chamber, a heparin line, and a pressure monitor line required for circulation, and a drip chamber attached to the circuit.

[0002]

2. Description of the Related Art A body fluid treatment circuit currently used is composed of a body fluid introduction side circuit and a body fluid outlet side circuit, and each circuit has a liquid level adjustment line, a drip chamber, A functional part such as a heparin line and an infusion tube other than the functional part were individually provided.

For this reason, the following problem has been pointed out. Since the whole structure is complicated, the tube and the like are entangled during setting before treatment and during treatment, and the operation is complicated. Complicated parts management is required for the production side because various lots must be prepared by changing the length of the tubes constituting the circuit according to the extracorporeal circulation of body fluids, treatment purpose, and treatment equipment for each patient. The production efficiency was low and the cost was high. The inventor of the present invention has made intensive studies in order to solve the above-mentioned problems, and has arrived at the following invention.

[0004]

Means for Solving the Problems [1] According to the present invention, a body fluid introduction chamber 63 and a body fluid outlet chamber 64 are integrated in parallel in the longitudinal direction by superposing and welding two sheets. The humor introduction side chamber 63 has a humor outflow port 66 and a liquid level adjustment line 62 at the top, and a humor introduction port 65 at the bottom. The humor outflow chamber 64 has a liquid level adjustment line 69 and a pressure monitor line at the top. 72, body fluid inlet 67 and body fluid outlet 6 at the bottom
8 is provided, and a drip chamber 61 is provided in which a lower portion of the bodily fluid outlet 66 is extended to a lower portion of the bodily fluid introduction side chamber 63.

[2] According to the present invention, the body fluid introduction side chamber 83 and the body fluid introduction side chamber 84 are integrated in parallel in the longitudinal direction by overlapping and welding two sheets, and the body fluid introduction side chamber 83 is provided. Is a body fluid outlet 86 and a liquid level adjustment line 91 at the top, and a body fluid inlet 8 at the bottom.
5, the body fluid outlet side chamber 84 has a pressure monitor line 90 and a liquid level adjustment line 89 at the top.
And a drip chamber 81 provided with a body fluid inlet 87 and a body fluid outlet 88 at the bottom.

[3] The present invention comprises the front part 121a and the back part 121b having the body fluid introduction chamber 123 (133) and the body fluid discharge chamber 124 (134), which are integrally formed, and constitutes the front part 121a. A connection part 122 of the liquid level adjustment line and a body fluid inlet 125 are attached to the upper part of the body fluid introduction side chamber 123, and a body fluid outlet 126 is connected to the lower part, and the body fluid outlet side chamber 124 constituting the front part 121 a is provided. At the upper part, the connection parts 129 and 130 of the pressure monitor line and the liquid level adjustment line and the body fluid inlet 127 are attached.
The front part 121a and the back part 121b provide a drip chamber 121 integrated by welding.

[ 4 ] The present invention comprises the upper part 101a and the lower part 101b having the body fluid introduction side chamber 103 (113) and the body fluid discharge side chamber 104 (114) integrally formed, and constitutes the upper part 101a. The connection part 102 of the liquid level adjustment line and the body fluid inlet 105 are mounted on the upper part of the body fluid introduction side chamber 103, and the fitting protrusion 111a is formed on the lower part, and the body fluid outlet side chamber constituting the upper part 101a. 104
The upper part is provided with connection parts 109 and 110 for the pressure monitor line and the liquid level adjustment line and the body fluid inlet 107, and the lower part is formed with a fitting projection 111a to form the lower part 101b. Chamber 113
The upper part has a fitting groove 111b, and the lower part has a body fluid outlet 106.
The fitting groove 111b is mounted on the upper part of the body fluid outlet side chamber 114 constituting the lower part 101b, and the body fluid outlet 108 is mounted on the lower part.
The present invention provides a drip chamber 101 in which cone filters 113a and 114a integrally formed by injection molding are arranged in the insides 3 and 114.

[ 5 ] In the present invention, the body fluid introduction chamber 153 and the body fluid outlet chamber 154 are adjacent to each other in the longitudinal direction by overlapping and welding two sheets, and a body fluid channel is provided therebetween. The body fluid introduction side chamber 153 has a body fluid inlet 155 and a liquid level adjustment line 152 at the upper part, and a body fluid outlet 156 at the lower part.
4 is a body fluid inlet 157 and a liquid level adjustment line 1 at the top.
62 and pressure monitor line 159, body fluid outlet 1 below
58 is provided.

[ 6 ] The present invention is directed to a belt 70, 201, 2 on the side of the body fluid introduction chamber and the body fluid outlet chamber.
[11] The drip chambers 61, 81 and 151 according to [1], [2] and [ 5 ] are provided.

[ 7 ] The present invention comprises a body fluid introduction side circuit 5 having at least a drip chamber, a rolling tube 7 and a heparin line 8 in the middle, and a body fluid outlet side circuit 6 having at least a drip chamber in the middle.
Connection members 20, 22, 23, and 24 are attached to both ends of the liquid introduction side circuit 5 and the body fluid outlet side circuit 6, respectively. The drip chambers of the body fluid inlet side circuit 5 and the body fluid outlet side circuit 6 are A drip chamber 61, 81, 101, 121, 151 according to any one of [1] to [ 6 ] integrated in parallel in the length direction thereof is provided.

[0011]

FIG. 1 is a schematic view of a body fluid processing circuit 1 according to the present invention. The body fluid introduction circuit having at least a so-called functional part such as a drip chamber 11, a rolling tube 7, a heparin line 8, and a liquid level adjusting line 19 in the middle thereof. Side circuit 5
In addition, it comprises a body fluid deriving circuit 6 having at least a functional part such as a drip chamber 11A, a liquid level adjustment line 9, and a pressure monitor line 10 on the way.

At both ends of the circuit 5 and the circuit 6, connecting members such as connectors 20 to 24 are mounted. The drip chambers 11 and 11A are integrated in parallel in the length direction.

A co-injection unit 3 is provided in the circuits 5 and 6 as needed. At one end of the circuit 5, for example, a branch line 14 is provided in the middle via a connector 20,
The bodily fluid introduction tube 15 equipped with the connector 21 and the shunt adapter 2 at the end is connected. The circuit 5
The body fluid treatment device 17 is connected to the other end of the device via a connector 22. One end of the circuit 6 is connected via a connector 24, a connector 25 and a bodily fluid outlet tube 26 to which a shunt adapter 2 is attached at one end, and a bodily fluid processor 17 via a connector 23 at the other end. Connected.

An example of how to use the body fluid processing circuit 1 will be described. Connect the bodily fluid introduction tube 15 to the circuit 5,
The physiological saline solution 13 is used to divide the physiological saline into the branch line 1.
4. The body fluid is introduced into the circuit 5, the circuit 6, and the body fluid processor 17 through the body fluid introduction tube 15, and the body fluid is introduced from the patient into the body fluid introduction tube 15, the circuit 5, and the drip chamber 11, and the body fluid is treated by the body fluid processor 17. Then, the patient is returned to the patient via the circuit 6, the drip chamber 11A, the circuit 6, and the body fluid outlet tube 26.

The functional units are integrated in the circuits 5 and 6,
By integrating the respective drip chambers 11 and 11A in parallel in the longitudinal direction, the body fluid processing circuit 1 is formed.
The whole can be made compact,
Size and specifications can be standardized. In other words, only the lengths of the bodily fluid introduction tube 15 and the bodily fluid derivation tube 16 need to be adjusted according to the extracorporeal circulation amount of the bodily fluid that differs for each patient, and the lengths of the circuits 5 and 6 are changed to handle various types of bodily fluids. Since there is no need to create a circuit for production, the production cost can be greatly reduced.

An embodiment of the drip chamber used in the body fluid treatment circuit 1 will be described below.

The drip chamber 61 shown in FIG. 2 is constructed by integrating two synthetic resin sheets into one another so as to integrate the body fluid introduction side chamber 63 and the body fluid discharge side chamber 64 in parallel in the longitudinal direction thereof. Have been. A bodily fluid outlet 66 and a liquid level adjusting line 62 are mounted on the upper part of the chamber 63, and a bodily fluid inlet 65 is mounted on the lower part. The lower part of the body fluid outlet 66 is the chamber 6
3 extends to the lower part. Thereby, the bodily fluid flowing into the chamber 63 can be efficiently sucked up. A liquid level adjustment line 69 and a pressure monitor line 72 are mounted on the upper part of the chamber 64, and a body fluid inlet 67 and a body fluid outlet 68 are mounted on the lower part. The upper end of the bodily fluid inlet 67 protrudes into the chamber 64. Thus, air bubbles flowing into the chamber 64 together with the bodily fluid can be released onto the chamber 64. The circuit 5 is connected to the body fluid inlet 65 and the body fluid outlet 66, and the circuit 6 is connected to the body fluid inlet 67 and the body fluid outlet 68. The liquid level adjustment lines 62 and 6
9. The pressure monitor line 72 is connected to the chambers 63, 64 via the connection tubes 62a, 69a, 72a as necessary.
Attached to. A mesh filter 74 is arranged in the chamber 64.

The drip chamber 61 includes the chamber 6
By attaching a belt 70 equipped with, for example, a velvet fastener on the side portions of the body 3 and 64, the belt 70 can be used by being attached to the outer periphery of the body fluid treatment device 17 as shown in FIG. Thus, the body fluid processing circuit can be made more compact.

The drip chamber 81 shown in FIG. 4 also has a body fluid introduction chamber 83 and a body fluid outlet chamber 84 arranged in parallel in the longitudinal direction by overlapping and welding two synthetic resin sheets similarly to the drip chamber 61. It is configured by being integrated into a. A bodily fluid outlet 86 and a liquid level adjusting line 91 are mounted on the upper part of the chamber 83, and a bodily fluid inlet 85 is mounted on the lower part. A liquid level adjustment line 89 is provided above the chamber 84.
And a pressure monitor line 90, and a bodily fluid inlet 87 and a bodily fluid outlet 88 are provided below. The circuit 5 is connected to the body fluid inlet 85 and the body fluid outlet 86, and the circuit 6 is connected to the body fluid inlet 87 and the body fluid outlet 88.
The liquid level adjusting lines 89 and 91 and the pressure monitor line 90 may be connected to connecting tubes 89a, 90a and 9 if necessary.
It is mounted in chambers 83 and 84 via 1a. A mesh filter 94 is provided in the chamber 84.

The drip chamber 101 shown in FIG. 5 (FIG. 6 is a side view of FIG. 5 ) comprises an upper part 101a and a lower part 101b formed by integral molding. The body fluid introduction side chamber 103 on the upper part 101a side is
The connection part 102 of the liquid level adjustment line and the bodily fluid inlet 105 are mounted on the upper part, and the fitting protrusion 111a is formed on the lower part. The body fluid outlet chamber 104 on the upper part 101a side has a body fluid inlet 107, a connection part 109 for a liquid level adjustment line, and a connection part 1 for a pressure monitor line at the top.
10 is mounted, and a fitting projection 111a is formed at a lower portion.

The body fluid introduction side chamber 113 on the lower part 101b side has a fitting groove 111b formed in the upper part, and the body fluid outlet 106 is mounted in the lower part. Lower part 101
The body fluid outlet side chamber 114 on the b side has the fitting groove 11
1b is formed, and a bodily fluid outlet 108 is attached to a lower portion. The upper part 101a and the lower part 101b can be integrated by welding the fitting projection 111a and the fitting groove 111b (111 is a welding part). In the chambers 113 and 114, cone filters 113a and 11 integrally formed by, for example, injection molding or the like are provided.
4a is mounted.

The drip chamber 121 shown in FIG. 7 (FIG. 8 is a sectional view taken along the line AA 'in FIG. 7 ) is composed of a front part 121a and a back part 121b formed by integral molding. Body fluid introduction side chamber 1 on front part 121a side
23 is provided with a connection part 122 for the liquid level adjustment line and a body fluid inlet 125 at the upper part, and a body fluid outlet 126 at the lower part.
Is installed. The body fluid outlet chamber 124 on the front part 121a side is provided with a body fluid inlet 127, a connection part 129 for the liquid level adjustment line and a connection part 130 for the pressure monitor line at the upper part, and a body fluid outlet 128 at the lower part. I have. Welding surfaces 1 are formed on the periphery of body fluid introduction chamber 123 and body fluid outlet chamber 124 constituting front part 121a and on the periphery of body fluid introduction chamber 133 and body fluid exit side 134 constituting back part 121b.
31 and 141 are formed, and by welding the welding surfaces 131 and 141, the front part 121a and the back part 12 are welded.
1b can be integrated. The chamber 123
And 133, and 124 and 134, a mesh filter and an integrally formed cone filter can be installed as needed.

The drip chamber 151 of FIG. 9 is also similar to the drip chambers 61 and 81, in that two synthetic resin sheets are overlapped and welded to each other so that the bodily fluid introduction chamber 153 and the bodily fluid discharge chamber 154 extend in the longitudinal direction. And integrated in parallel.
The upper part of the chamber 153 is provided with a body fluid inlet 155 and a liquid level adjustment line 152, and the lower part thereof is provided with a body fluid outlet 156. Above the chamber 154, a body fluid inlet 157 and a liquid level adjusting line 16 are provided.
2 and pressure monitor line 159, body fluid outlet 1 below
58 are mounted. The circuit 5 is connected to the body fluid inlet 155 and the body fluid outlet 156, and the circuit 6 is connected to the body fluid inlet 157 and the body fluid outlet 158. The liquid level adjustment lines 152 and 157 and the pressure monitor line 15
9 is connection tubes 152a, 157a, 16
It is attached to the chambers 153 and 154 via 2a.
A mesh filter 164 is provided in the chamber 154.

The belt 70 mounted on the side of the drip chamber 61 in FIG. 3 FIG. 4, drip chamber 8 in FIG. 9
1, 151 can also be attached. For example 10,
Velvet fastener belt 20 as shown in FIG. 11
1 or a normal engagement type belt 211 can be used. The belt 201 has a velvet fastener 20 facing the surfaces of the left and right arm bending belts 202 and 203 so as to face each other.
4, 205 can be attached, and the attachment state to the body fluid processor can be adjusted by the engagement position of the fasteners 204, 205.

The belt 211 is an identification tool 2 in which an engagement protrusion 213 and a holding member 214 are formed at one end of an arm bending belt 212.
15 and the other arm bending belt 2
A plurality of groove portions 217 corresponding to the engagement protrusions 213 are formed on the other arm bending band 218 on which the eighteen holding members 216 are mounted. The state of attachment to the body fluid processor can be adjusted by the engagement position between the engagement protrusion 213 and the groove 217.

[0026]

In the circuit for treating body fluid of the present invention, the circuit for introducing the body fluid and the circuit for ejecting the body fluid are integrated at the drip chamber portion, and the drip chamber, the liquid level adjustment line, the pressure monitor line, Since the functional units such as heparin line are integrated, the whole can be made compact, and the standard size and specifications can be standardized. This eliminates the hassle of installing the individual drip chambers and the tangling of circuits during use. By making a part of the body fluid introduction side circuit detachable via the connector part, the lengths of the body fluid introduction tube and the body fluid outlet tube other than the functional part are appropriately adjusted according to the patient and the device, and the circuit length and By making the functional units uniform, the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a body fluid processing circuit.

FIG. 2 is a schematic diagram of a drip chamber of the present invention.

Using state of FIG. 3] FIG. 2

FIG. 4 is a schematic diagram of a drip chamber of the present invention.

FIG. 5 is a schematic diagram of a drip chamber of the present invention.

FIG. 6 is a side view of FIG. 5

FIG. 7 is a schematic diagram of a drip chamber of the present invention.

FIG. 8 is a sectional view taken along line AA ′ of FIG. 7 ;

FIG. 9 is a schematic diagram of a drip chamber of the present invention.

FIG. 10 is a schematic view showing an embodiment of a belt mounted on a drip chamber.

FIG. 11 is a schematic view showing an embodiment of a belt mounted on a drip chamber.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Body fluid processing circuit 2 Shunt adapter 3 Mixed injection part 4 Roll clamp 5 Body fluid introduction side circuit 6 Body fluid discharge side circuit 7 Rolling tube 8 Heparin line 9, 19, 62, 69, 89, 91 Liquid level adjustment line 10, 72, 90 Pressure monitor line 11, 11A, 61, 81, 101, 121, 151
Drip chamber 12 Introduction needle 13 Physiological saline solution container 14 Branch line 15 Body fluid introduction tube 26 Body fluid outlet tube 16, 20, 21, 22, 23, 24, 25 Connector 17, 71 Body fluid processor 63, 83, 103, 113, 123 , 133, 153
Body fluid introduction side chamber 62a, 69a, 72a, 89a, 90a, 91a Connection tube 64, 84, 104, 114, 124, 134, 154
Body fluid outlet chamber 65, 67, 85, 87, 105, 107, 125, 1
27 Body fluid inlet 66, 68, 86, 88, 106, 108, 126, 1
28 Body fluid outlet 113a, 114a Cone filter 70 Belt 74, 94 Mesh filter 101a Upper part 101b Lower part 102, 109, 122, 129 Connection part of liquid level adjustment line 110, 130 Connection part of pressure monitor line 111 Welding part 111a Fitting projection 111b Fitting groove 121a Front part 121b Back part 141, 131 Welding surface

──────────────────────────────────────────────────続 き Continued on the front page (72) Michio Abe, Inventor Michio, Oo-gun, Oita Prefecture, 7-7, Tamada, Kawami Chemical Industry Co., Ltd. Mie Plant (72) Inventor Hirofumi Wakamatsu, Oita Prefecture No. 1 Kawasumi Chemical Industry Co., Ltd. Mie Plant Examiner Hiroshi Abe (56) References JP-A-55-116353 (JP, A) JP-A 64-42048 (JP, U) JP-A 62-56037 (JP) , U) Japanese Utility Model Showa 64-39809 (JP, U) Japanese Utility Model Showa 63-17484 (JP, Y2) Japanese Utility Model Utility Model 5-2193 (JP, Y2) (58) Fields surveyed (Int. Cl. ⁷ , DB Name) A61M 1/36

Claims (7)

(57) [Claims] 1. A humor introduction chamber 63 and a humor outflow chamber 64 are integrated in parallel in a longitudinal direction thereof by superposing and welding two sheets, and the humor introduction chamber 63 has a humor flow Exit 66
And a fluid level adjusting line 62, and a bodily fluid inlet 65 at the lower portion. The bodily fluid outlet side chamber 64 has a fluid level adjusting line 69 and a pressure monitor line 72 at an upper portion, and a bodily fluid inlet 67 and a bodily fluid outlet 68 at a lower portion. The drip chamber 61 is characterized in that a lower portion of the bodily fluid outlet 66 is extended to a lower portion of the bodily fluid introduction side chamber 63. 2. A body fluid introduction side chamber 83 and a body fluid discharge side chamber 84 are integrated in parallel in the longitudinal direction thereof by superposing and welding two sheets, and the body fluid introduction side chamber 83 has a body fluid flow Exit 86
And a fluid level adjusting line 91, a bodily fluid inlet 85 is attached to the lower part, and the body fluid outlet side chamber 84 is equipped with a pressure monitor line 90 and a fluid level adjusting line 89 at the upper part, and a bodily fluid inlet 87 at the lower part. A drip chamber 81 equipped with a body fluid outlet 88. 3. A body fluid introduction side chamber 12 which is integrally formed.
3 (133) and body fluid outlet side chamber 124 (134)
A front part 121a and a back part 121b having a front surface part 121a. A connection part 122 of a liquid level adjustment line and a body fluid inlet 125 are mounted on an upper part of the body fluid introduction side chamber 123 constituting the front part 121a, and a body fluid is provided on a lower part. An outlet 126 is connected, and connection parts 129 and 130 of a pressure monitor line and a liquid level adjustment line and a body fluid inlet 127 are mounted on the upper part of the body fluid outlet chamber 124 constituting the front part 121a. The drip chamber 121, wherein the rear part 121a and the rear part 121b are integrated by welding. 4. A body fluid introduction side chamber 10 which is integrally formed.
3 (113) and body fluid outlet side chamber 104 (114)
The upper part 101a comprises a lower part 101b and an upper part 101a.
2 and a body fluid inlet 105, and a fitting projection 111a is formed at a lower part. A connection part of a pressure monitor line and a liquid level adjustment line is provided at an upper part of the body fluid outlet side chamber 104 constituting the upper part 101a. 109, 110, and a body fluid inlet 107 are mounted. A fitting projection 111a is formed at a lower portion. A fitting groove 111b is provided at an upper portion of the body fluid introduction chamber 113 constituting the lower part 101b, and a body fluid flow is provided at a lower portion. An outlet 106 is mounted, and a fitting groove 111 is provided in an upper part of the body fluid outlet side chamber 114 constituting the lower part 101b.
(b) The drip chamber 101, wherein a bodily fluid outlet 108 is mounted at a lower portion, and cone filters 113a, 114a integrally formed by injection molding are arranged in the chambers 113, 114. 5. A body fluid introduction side chamber 153 and a body fluid discharge side chamber 154 are adjacent to each other in a longitudinal direction by superposing and welding two sheets, and are integrated in parallel without providing a body fluid passage between them. The body fluid introduction side chamber 153 has a body fluid inlet 1
55, a liquid level adjustment line 152, a body fluid outlet 156 at a lower portion, and a body fluid outlet chamber 154 at an upper portion.
57, a drip chamber 151 characterized by mounting a fluid level adjusting line 162, a pressure monitor line 159, and a bodily fluid outlet 158 at a lower portion. 6. The drip chambers 61, 81, 151 according to claim 1, 2 and 5 , wherein belts 70, 201, 211 are attached to side portions of the body fluid introduction side chamber and the body fluid discharge side chamber. 7. A fluid introduction side circuit 5 having at least a drip chamber, a rolling tube 7 and a heparin line 8 on the way, and a body fluid outlet side circuit 6 having at least a drip chamber on the way. Connecting members 20, 22, 23, and 24 are attached to both ends of the body fluid outlet circuit 6, respectively. The drip chambers of the body fluid inlet circuit 5 and the body fluid outlet circuit 6 are arranged in parallel in the length direction. A body fluid treatment circuit, comprising the drip chamber (61, 81, 101, 121, 151) according to any one of claims 1 to 6 .