JP2000014772A - Sterilized connecting socket for dialyzer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sterilized connecting socket for a dialyzer in which contamination during mounting by connection is completely prevented from occurring by performing sterilized disinfection of a connecting socket connected with a connecting hole of the dialyzer during therapy by artificial dialysis. SOLUTION: In a connecting socket 2 with a fitting hole 3 fitted to a connecting hole of a dialyzate circuit provided in a dialyzer, the fitting hole 3 consisting of an elastic material is connected with a circuit tube 5 through an inner passage 4 of the connecting socket 2 and a liq. stopping annular projected part 7 formed on the outer periphery of the fitting hole 3 of the connecting socket 2 fitted to the inner periphery of a connecting hole 11 of a cleaning device 10 has an outer diameter hermetically contacted with the inner diameter of the connecting hole 11 of the cleaning device 10 and the outer periphery of the end part of the connecting socket 2 is made smaller diameter than the inner periphery of the connecting hole 11 of the cleaning device 10 and thereby, a disinfection liq. or a cleaning liq. communicating the inside of the connecting socket 2 flows the peripheral part to the liq. stopping annular projected part 7 through the outer periphery of the end part of the fitting hole 3 to disinfect or clean these zone with the inside of the connecting socket 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention performs aseptic disinfection of a connection socket connected to a connection port of a dialyzer for performing artificial dialysis treatment, and removes contamination when the connection socket is inserted into the connection port of the dialyzer. The present invention relates to a dialyzer aseptic connection socket which is completely prevented.

[0002]

2. Description of the Related Art A dialyzer (dialyzer) conventionally used for artificial dialysis treatment comprises a large number of ultrafine thin tubes forming a semi-permeable membrane in a cylindrical container, and a patient's inside is placed in these thin tubes. While distributing blood taken from the body,
By supplying the dialysate to the outside of the tubule, the osmotic pressure generated through the semi-permeable membrane causes the body fluid in the blood to be drawn to the dialysate side, while the solution containing necessary substances in the dialysate is supplied to the blood side. Exchange with body.

In such artificial dialysis treatment, it is necessary to supply the dialysate in the circuit aseptically into the dialyzer in order to protect the patient from bacterial contamination. For this reason, conventionally, after the dialysis treatment, the inside of the dialysate circuit is washed and disinfected to ensure the sterility of the circuit.

FIG. 9 shows a state where a conventional connection socket 50 is inserted into a connection port 61 of a cleaning device 60.
In this figure, a connection socket 50 is configured such that an insertion port 51 having one end opened and a connection port 53 having a circuit tube 52 inserted therein communicate with each other through an internal passage 54. Is a mounting hole 51a in which an O-ring 55 is mounted, and a plurality of balls 56 are fitted outside the inner periphery of the insertion port 51.
Is provided.

A spring 58 is provided on the inner periphery of a slide clamp 57 slidably provided on the outer periphery of the insertion port 51.
An annular recess 59 accommodating the spring 58 is formed.
Is supported by an annular step 51b of the connection socket 50.

The connection port 61 fixed to the panel 60 a of the cleaning device 60 has an outer diameter inserted inside the insertion port 51 of the connection socket 50. An annular step 62 is formed at the tip of the insertion port 51, and an annular recess 63 is formed on the inner periphery. On the other hand, a connection port 64 communicating with the connection port 61 is formed inside the cleaning device 60, and a tube 65 is inserted around the connection port 64.

In such a configuration, the connection socket 5
The slide clamp 57 is moved inward (to the right in FIG. 9) against the elastic force of the spring 58 to release the outer periphery of the ball 56. When inserted into the outer periphery of the connection port 61, the ball 56 of the connection socket 50 is fitted into the annular concave portion 63 of the insertion port 51, while the annular step 62 of the connection port 61 is pressed against the O-ring 55 of the connection socket 50. To perform sealing.
Further, when the slide clamp 57 returns to a natural state by its elastic force, the slide clamp 57
6, the insertion hole 51 of the connection socket 50 is held down.
The state of being inserted between the cleaning device 60 and the connection port 61 is fixed.

[0008]

When the cleaning liquid or the disinfecting liquid flows in the above inserted state, disinfecting or cleaning flows through the internal passage of the connection socket 50 and the internal passage 54 of the insertion port 51 of the connection socket 50. Is performed.

In such a disinfection cleaning operation, FIG.
The inside of the connection socket 50 indicated by the O-ring 55 as a boundary is a cleaning area, but the outside of the O-ring as a boundary (a portion indicated by a two-dot chain line) is a contaminant where the cleaning liquid or disinfectant does not flow. It becomes a band and the body fluid circulated in the dialysis treatment and the dust from the outside remain attached. In particular, the area around the ball 56 and the area around the spring 58 is an extremely highly contaminated zone in which bacteria and dust and the like in body fluids grow and accumulate.

After the connection socket 50 is pulled out from the connection port 61 of the connection socket 60 and then inserted into the connection port 31 of the dialyzer 30 as shown in FIG. A situation occurs in which the contaminated zone hits the end of the connection port 31 of the dialyzer 30 and the like, and contaminants adhere. Then, as shown in FIG. 12, when the dialysate flows while the connection socket 50 is inserted into the connection port 31 of the dialyzer 30, the contaminants adhering to the connection port 31 of the dialyzer 30 enter the dialyzer 30. This causes bacterial infection in the patient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The present invention carries out aseptic disinfection of a connection socket connected to a connection port of a dialyzer for performing artificial dialysis treatment. It is an object of the present invention to provide a dialyzer aseptic connection socket that completely prevents contamination when the socket is inserted into a connection port of the dialyzer.

[0012]

In order to achieve the above-mentioned object, a dialysis machine aseptic connection socket of the present invention has an insertion port inserted into a connection port of a dialysate circuit provided in a dialyzer. In the connection socket, the insertion port made of an elastic material is connected to a circuit tube via an internal passage of the connection socket, and an outer circumference of the insertion port of the connection socket inserted into an inner circumference of the connection port of the cleaning device. The liquid stop annular projection formed on the cleaning device has an outer diameter that is in close contact with the inner diameter of the connection port of the cleaning device, and the outer circumference of the end of the connection socket is smaller in diameter than the inner circumference of the connection port of the cleaning device. Accordingly, the disinfecting liquid or the cleaning liquid flowing through the inside of the connection socket flows through the peripheral portion that reaches the liquid stopping annular convex portion through the outer periphery of the end of the insertion port, and disinfects these bands together with the inside of the connection socket. Or to wash Those were.

[0013] Further, an inner peripheral convex portion that fits into an annular concave portion formed on the outer periphery of the connection port of the dialyzer is formed on the inner periphery of the insertion port of the connection socket, and the insertion port of the connection socket of the connection socket is formed. A lock ring that slidably fits the outer circumference of the insertion port is provided on the outer circumference, and when the connection socket is inserted into the connection port of the dialyzer, the lock ring is attached to the inner peripheral convex portion of the insertion port. By moving to the outer periphery, it is preferable that the state in which the inner peripheral convex portion of the connection socket is fitted to the annular concave portion of the connection port of the dialyzer is pressed from the outer periphery to be in a fixed state.

Further, it is preferable that the connection socket has a tapered shape in which an inner circumference extending from the inner circumference projection to the tip of the insertion opening of the insertion socket expands toward the opening side.

[0015] Further, the connection socket has an annular lip portion in which the outer periphery of the end of the insertion opening is bulged outward, and contaminates the peripheral portion between the annular lip portion and the liquid stop annular convex portion. A configuration in which a liquid blocking groove is formed may be employed.

Further, a latching recess is provided on a side portion of the main body of the connection socket, and a setup lever of a setup lever rotatably supported by a connection port of the cleaning device or a connection socket connecting the connection sockets. A configuration may be employed in which the hook is held in the hooking recess of the connection socket to thereby prevent the connection socket from coming off in the inserted state.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the main body of the connection socket 2 is formed using a soft and elastic synthetic resin material such as silicon rubber or urethane rubber, and an insertion port 3 having an opening at one end is formed. A connection port 6 is formed through an internal passage 4 communicating with the insertion port 3, and a circuit tube 5 is inserted into the connection port 6 and fixed with an adhesive or the like. Note that an inner peripheral stepped portion 3 a having a reduced inner diameter is formed inside the insertion opening 3.

The insertion opening 3 of the connection socket 2 is
As shown in FIG. 2, the cleaning device 10 has a shape inserted into the inner periphery of the connection port 11 of the cleaning device 10.

In describing the shape of the insertion port 3 of the connection socket 2, the connection port 11 of the cleaning device 10 of FIG. 2 will be described. The connection port 11 is provided on the front panel 12 of the cleaning device 10. The connection hole 16 is connected to the through hole 13 with a nut 14 or the like, and a connection port 16 for connecting a tube 15 through which a disinfecting solution or a cleaning solution flows is formed inside the connection port 11.

The connection port 11 of the cleaning device 10
An inner inner circumference 17 having an inner diameter for closely fitting the outer diameter of the liquid stop annular convex portion 7 formed on the outer circumference of the connection socket 2, and a lock ring 20 movably fitted on the outer circumference of the connection socket 2.
And an outer inner circumference 18 into which the outer diameter of the tube 1 can be inserted.
The connection port 16 of 5 and the inner inner periphery 17 are tapered throttle ports 1
It is linked by nine.

As shown in FIG. 1, a connection port of a dialyzer 30 (see FIG. 4) is provided on the inner periphery of the connection port 3 of the connection socket 2 which is inserted into the connection port 11 of the washing device 10 as shown in FIG. An inner peripheral convex portion 8 is formed to fit into an annular concave portion 32 formed on the outer periphery of the socket 31. A lock for slidably fitting the outer periphery of the insertion opening 3 on the outer periphery of the insertion opening 3 of the connection socket 2. Ring 20
Is provided.

The lock ring 20 has an annular rear locking portion 21 at the rear outer end (the right outer end of the lock ring 20 in FIG. 1).
The rear locking portion 21 is locked to an edge of the connection port 11 of the cleaning device 10 as shown in FIG. Further, an annular front locking portion 22 is formed in the horizontal direction on the outer periphery of the front end of the lock ring 20, and this front locking portion 22 is engaged with the outer circumference of the liquid stopping annular convex portion 7 as shown in FIG. You.

Further, the lock ring 20 can move on the outer periphery of the insertion opening 3 of the connection socket 2 to tighten or release the outer periphery of the inner peripheral projection 8 of the connection socket 2.
For this reason, the outer periphery of the insertion opening 3 of the connection socket 2 has a uniform outer diameter portion 24 for the lock ring 20 to move, and is located at the rear (right side in FIG. 1) position of the insertion opening 3 of the connection socket 2. An annular step 25 is formed, and the lock ring 20 is
5 and its movement is stopped.

Also, as shown in FIG.
The annular lip portion 2 has a tapered shape in which the inner periphery of the distal end port 26 extending from the inner peripheral convex portion 8 to the distal end expands toward the opening side, and the outer periphery of the end portion of the insertion opening 3 bulges outward.
7 is formed on the outer peripheral portion of the inner peripheral convex portion 8 slightly in front of the inner peripheral convex portion 8.
A contaminated liquid blocking groove 28 is formed on the outer periphery between the liquid stop annular convex portion 7 and the liquid stopping annular convex portion 7.

The reason why the liquid stopping annular convex portion 7 is provided on the outer periphery slightly in front of the inner peripheral convex portion 8 is as described above.
This is to secure room for the lock ring 20 to move around the outer periphery of the uniform outer diameter portion 24.

The outer diameter of the liquid stopping annular convex portion 7 is the annular lip portion 27.
As shown in FIG. 2, when the connection socket 2 is inserted into the inner periphery of the connection port 11 of the cleaning device 10 as shown in FIG. In contact with the inner diameter of the connection port 11 (inner inner circumference 17).

The outer circumference of the end of the connection socket 2, that is, the annular lip portion 27 is made smaller in diameter than the inner circumference of the connection port 11 of the cleaning device 10, and as shown in FIG.
0, the inner circumference of the connection port 11 (inner inner circumference 17) of the cleaning device 10 and the annular lip portion 27.
And a gap that allows a liquid to flow therethrough.

Further, when the connection socket 2 is inserted into the inner periphery of the connection port 11 of the cleaning device 10 as shown in FIG. 2, the rear locking portion 21 of the lock ring 20 is locked to the edge of the connection port 11, When the lock ring 20 moves rearward (to the right in FIG. 2), the lock ring 20 comes into contact with the annular step portion 25 of the connection socket 2 to stop further movement. The insertion posture of the connection socket 2 can be brought into a fixed state without lateral vibration by closely adhering to the inner periphery of the connection port 11, and the gap generated around the annular lip portion 27 can be kept constant.

With such a configuration, as shown in FIG. 2, the tube 15 and the connection port 16 of the cleaning device 10 are inserted in a state where the connection socket 2 is inserted into the inner periphery of the connection port 11 of the cleaning device 10.
When the disinfecting solution or cleaning liquid flows through the connection socket 2, the disinfecting liquid or cleaning liquid flows through the inside of the connection socket 2 as shown by the two-dot chain arrow in FIG. 27 and around the liquid stop annular convex portion 7.

For this reason, in the present embodiment, as shown by the two-dot chain line arrow in FIG. 1, as well as the inside of the connection socket 2, it reaches the liquid stopping annular convex portion 7 through the outer periphery of the end of the insertion opening 3. It is possible to wash or disinfect the zone, which is the disinfection or cleaning zone according to the invention.

In order to connect the connection socket 2 to the connection port 31 of the dialyzer 30, the lock ring 20 is moved to the step of the connection socket 2 as shown in FIG. Is released and the dialyzer 30
When the insertion port 3 of the connection socket 2 is inserted into the outer periphery of the connection port 31 of the dialysis machine 3, the inner peripheral projection 8 of the insertion port 3 having elasticity
Insertion proceeds with the outer diameter of the 0 connection port 31 expanded. At this time, the insertion is facilitated by the tapered shape of the distal end port 26 of the connection socket 2.

Then, as shown in FIG. 4, the inner peripheral step 3a of the connection socket 2 comes into contact with the peripheral step 33 near the distal end of the connection port 31 of the dialyzer 30, and further entry is stopped. Then, the inner peripheral convex portion 8 of the connection socket 2 is fitted into the annular concave portion 32 of the connection port 31 of the dialyzer 30.

In this state, the lock ring 20 is
When the inner peripheral projection 8 of the connection socket 2 moves to the outer periphery of the inner peripheral projection 8, the inner peripheral projection 8 of the connection socket 2 is pressed from the outer periphery, and the inner peripheral projection 8 is
Is fixed to the annular recess 32 of the connection port 31 of FIG.

When taking out the connection socket 2 from the connection port 31 of the dialyzer 30, the lock ring 20 is again moved in the release direction as shown in FIG. I just need.

As described above, the connection socket 2 is connected to the dialyzer 30
In the present embodiment, in the operation of inserting the liquid into the connection port 31, the liquid flows from the internal passage 4 of the connection socket 2 to the distal end port 26 of the insertion port 3 through the annular lip portion 27 and the contaminated liquid blocking groove 28. Since the zone reaching the stop annular projection 7 is a disinfecting or cleaning zone, even if the end of the insertion port 3 of the connection socket 2 hits the end of the connection port 31 of the dialyzer 30, etc.
No contaminants adhere to the connection port 31 of the dialyzer 30.

FIG. 5 shows that the connection socket 2 is connected to the dialyzer 30.
2 shows a state in which they are inserted into the connection ports 31 on both sides of the first embodiment.

As shown in FIG. 2, after the dialysis treatment is completed, when the connection socket 2 is inserted into the connection port 11 of the cleaning device 10 to perform disinfection or cleaning, a disinfecting solution or a cleaning solution flowing through the inside is used. The connection socket 2 is changed to the cleaning device 1
There is a possibility that the connection port 11 may fall out of the connection port 11. In order to prevent such a situation, it is preferable to fix the inserted state by the setup lever 40 as shown in FIG. 6 or FIG.

As an embodiment of the set-up lever 40, as shown in FIG. 6, a single metal rod is bent in a substantially U-shape, and a single connection port on the artery side and the vein side provided in the washing device is provided. A pivoting portion 43 rotatably mounted on a pivoting concave portion 42 provided on both sides of the base 41, a finger hooking portion 44 protruding at the center of the end portion, and a bent portion on both sides of the hooking portion 4
It is 6.

A latching recess 45 is formed at the rear end side of the connection socket 2, and the latching portion 46 of the setup lever 40 is latched in the latching recess 45 to form a single connection port. By fixing the insertion state of the connection socket 2 inserted into the connection socket 41, it is possible to prevent the disinfecting solution or the cleaning solution flowing through the inside from coming off due to the internal pressure.

The internal structure of the single connection port 41 provided with the setup lever 40 is configured in the same manner as the connection port 11 of the above-described cleaning device 10, and the connection ports 41 on the artery side and the vein side are provided.
Are communicated with each other.

A triangular groove 47 for restricting the rotation of the setup lever 40 is formed on both sides of each single connection port 11, and the setup lever 40 is released from the engaging recess 45 of the connection socket 2. The rotation angle is limited.

FIG. 8 shows a configuration in which a pair of left and right connection sockets 2 and 2 are connected via a connection socket 48, and both ends of the connection socket 48 are provided with the setup lever 40 as described above. Are rotatably supported, and the internal structure on both sides of the connection socket 48 is configured in the same manner as the connection port 11 of the cleaning device 10 described above.
a.

The connection sockets 2 are inserted into both sides of the connection socket 48, and the set-up lever 40 is turned horizontally so that the hooks 45, 45 are connected to the connection sockets 2, 2, respectively. By hooking on the hooking recess 45, the insertion state of each of the connection sockets 2 and 2 can be fixed to prevent the connection socket 2 from coming off.

[0045]

As described above, according to the aseptic connection socket for dialyzer of the present invention, the insertion port made of an elastic material is connected to the circuit tube via the internal passage of the connection socket.
The liquid stopper annular projection formed on the outer periphery of the connection port of the connection socket inserted into the inner periphery of the connection port of the cleaning device has an outer diameter that is in close contact with the inner diameter of the connection port of the cleaning device, and Since the outer periphery of the end portion is smaller in diameter than the inner periphery of the connection port of the cleaning device, the disinfectant or cleaning liquid flowing through the inside of the connection socket reaches the liquid stopping annular convex portion through the outer periphery of the end portion of the insertion port. It is possible to disinfect or wash these bands together with the inside of the connection socket, and when the connection socket is inserted into the connection port of the dialyzer, the end of the connection port of the connection socket, etc. Even if it hits the end of the connection port, no contaminant adheres to the end of the connection port of the dialyzer, and it is possible to completely prevent contamination when the connection socket is inserted.

Further, in the present invention, an inner peripheral convex portion which fits into an annular concave portion formed on the outer periphery of the connection port of the dialyzer is formed on the inner periphery of the insertion port of the connection socket, and the insertion port of the connection socket is formed. A lock ring that slidably fits the outer circumference of the insertion port is provided on the outer circumference of the connection port, so that when the connection socket is inserted into the connection port of the dialyzer, the lock ring is attached to the inner peripheral convex portion of the insertion port. Moving to the outer periphery, the state where the inner peripheral convex portion of the connection socket is fitted into the annular concave portion of the connection port of the dialyzer can be pressed from the outer periphery to a fixed state, and the connection socket is inserted into the connection port of the dialyzer. It is possible to prevent the user from slipping out.

Further, the operation of inserting the connection socket into the connection port of the dialyzer can be performed because the inner circumference from the inner projection to the tip of the insertion port of the connection socket has a tapered shape that expands toward the opening side. It becomes possible to make it easier.

Further, the connection socket has an annular lip portion in which the outer periphery of the end of the insertion opening is bulged outward, and a contaminated liquid is blocked at the peripheral portion between the annular lip portion and the liquid-stop annular convex portion. Due to the formation of the groove, even if contaminants remain on the annular lip, it can be prevented from dripping onto the liquid stop annular protrusion and adhering to the end of the insertion opening of the connection socket Becomes

Further, a recess is provided at the side of the main body of the connection socket at the connection port of the cleaning device, and is rotatably supported by the connection port of the cleaning device or the connection socket connecting the connection sockets. The hook of the set-up lever is hooked on the hooking recess of the connection socket, so that the connection socket can be prevented from coming off in the inserted state.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a dialyzer aseptic connection socket according to the present invention.

FIG. 2 is a longitudinal sectional view showing a state in which a dialyzer aseptic connection socket according to the present invention is inserted into a connection port of a cleaning device.

FIG. 3 is a longitudinal sectional view showing a state in which a dialyzer aseptic connection socket according to the present invention is being inserted into a connection port of a dialyzer.

FIG. 4 is a longitudinal sectional view showing a state in which a dialyzer aseptic connection socket according to the present invention is inserted into a connection port of a dialysis device.

FIG. 5 is a longitudinal sectional view showing a state in which the aseptic dialyzer connection socket according to the present invention is inserted into both connection ports on the arteriovenous side of the dialyzer.

FIG. 6 is a top view showing a state in which a dialyzer aseptic connection socket according to the present invention is inserted into a single connection port of a cleaning device and a setup lever is latched, and a mounting portion of the setup lever is shown in cross section. .

FIG. 7 is a side view showing a state in which the dialyzer aseptic connection socket according to the present invention is inserted into a single connection port of the washing device, and the setup lever is hooked on the hooking recess of the connection socket.

FIG. 8 is a side view showing a state in which the aseptic dialyzer connection socket according to the present invention is inserted into the connection socket from the left and right and the setup lever is latched.

FIG. 9 is a longitudinal sectional view showing a state in which a conventional connection socket is inserted into a connection port of a cleaning device.

FIG. 10 is a longitudinal sectional view showing a contamination zone of a conventional connection socket.

FIG. 11 is a longitudinal sectional view showing a state in which a conventional connection socket faces a connection port of a dialysis device.

FIG. 12 is a longitudinal sectional view showing a state in which a conventional connection socket is inserted into a connection port of a dialysis device.

[Description of sign]

Reference numeral 2 denotes a connection socket, 3 denotes an insertion port, 4 denotes an internal passage, 5 denotes a circuit tube, 6 denotes a connection port, 7 denotes a liquid stop annular convex part, 8 denotes an inner peripheral convex part, 10 denotes a cleaning device, and 11 denotes a connection port. ... Tube, 16 ... Connection port, 19 ... Throttle port, 20 ... Lock ring, 21 ... Back locking part, 22 ... Front locking part, 24 ... Equal outer diameter part, 25 ... Stepped part, 26 ... Tip opening, 27 ... circular lip part, 28 ... contaminated liquid blocking groove, 30 ... dialyzer, 31 ... connection port, 32 ... circular concave part, 33 ... peripheral step, 40 ... setup lever, 41 ... connection port, 42 ... pivot concave part , 43 ...
Pivot part, 44 ... finger hanging part, 46 ... hanging part, 48 ... connecting socket.

Claims (5)

[Claims] 1. A connection socket having an insertion port inserted into a connection port of a dialysate circuit provided in a dialyzer, wherein the insertion port made of an elastic material is connected to a circuit through an internal passage of the connection socket. An outer diameter which is connected to a tube and has a liquid stopper annular projection formed on the outer periphery of the insertion port of the connection socket which is inserted into the inner periphery of the connection port of the cleaning device, and which is in close contact with the inner diameter of the connection port of the cleaning device. And the outer circumference of the end of the connection socket is made smaller in diameter than the inner circumference of the connection port of the cleaning device, so that the disinfectant or cleaning liquid flowing through the inside of the connection socket receives the outer circumference of the end of the insertion port. A sterilizing connection socket for a dialyzer, wherein the band is circulated to a peripheral portion extending to the liquid stop annular convex portion through the above and disinfected or washed together with the inside of the connection socket. 2. An inner periphery of the insertion opening of the connection socket is formed with an inner periphery projection fitted into an annular recess formed on an outer periphery of the connection opening of the dialyzer. A lock ring that slidably fits the outer circumference of the insertion port is provided on the outer circumference, and when the connection socket is inserted into the connection port of the dialyzer, the lock ring is attached to the inner peripheral convex portion of the insertion port. 2. The state in which the inner peripheral convex portion of the connection socket is fitted to the annular concave portion of the connection port of the dialyzer is pressed from the outer periphery into a fixed state by moving to the outer periphery. Dialyzer aseptic connection socket. 3. The aseptic connection socket for a dialyzer according to claim 1, wherein an inner periphery of the insertion opening of the connection socket from the inner periphery convex portion to the distal end has a tapered shape expanding toward an opening side. 4. The connection socket has an annular lip formed by bulging an outer periphery of an end of an insertion port thereof, and contaminates a peripheral portion between the annular lip and the liquid stop annular convex. The aseptic connection socket for a dialyzer according to claim 1, wherein a liquid blocking groove is formed. 5. A setup recess provided on a side portion of a body of the connection socket, the setup lever being rotatably supported by a connection port of the cleaning device or a connection socket connecting the connection sockets. 2. The aseptic connection socket for a dialyzer according to claim 1, wherein a hook portion is hooked on a hooking recess of the connection socket to prevent the connection socket from coming off in an inserted state.