Sterile pipe receiving method and sterile pipe receiving machine

Abstract

The invention relates to the technical field of sterile pipe connection, and discloses a sterile pipe connection method which comprises the following steps: step 1, preparing two hoses needing to be connected; 2, a high-frequency device is used for acting on the areas, needing to be separated, of the two hoses correspondingly, and molecules in pipeline materials in the separation areas oscillate violently, so that the areas are melted and fused together. According to the method, firstly, a high-frequency device is used for acting on a separation area of the hose, molecules in a pipeline material in the separation area oscillate violently, so that the area is melted and fused together, separation of the separation area of the hose in the later period is better facilitated, and the leakproofness of the pipeline is maintained; in this way, after the hose is subjected to heat sealing through the high-frequency device and then separated, the tail end of the hose to be connected only needs to be kept at the normal temperature, energy is saved, the tail end of the hose to be connected in the normal-temperature state has high sealing performance, and it is guaranteed that substances in the hose cannot be polluted by the outside world.

Description

Technical Field

[0001] The invention relates to the technical field of aseptic pipe connection, and in particular to an aseptic pipe connection method and an aseptic pipe connection machine. Background Art

[0002] In the medical field, there is a need to connect hoses (which are used, for example, to transfer blood or infusion liquids) to each other aseptically. In a method and device for aseptically connecting hoses in a Chinese patent (CN103140259B), it is known that the separation areas of two hoses made of thermoplastic materials are first heated and melted and then cut off, and then the two hose ends are connected by rotation and joined using the residual heat.

[0003] In the prior art, the hose is heated only once when it is cut, and then the residual heat is used for joining in the subsequent steps. However, this method requires the hose end to be at a relatively high temperature, which may cause the shape and structure of the hose connection to change, thereby affecting its sealing and connection strength. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a sterile pipe connection machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A sterile pipe connection method comprises the following steps:

[0007] Step 1, prepare the two hoses that need to be connected;

[0008] Step 2: Use a high-frequency device to act on the areas of the two hoses that need to be separated, so that the molecules inside the pipe material in the separation area vibrate violently, causing the area to melt and fuse together;

[0009] Step 3, mechanically separating the separation areas of the two hoses by applying a pulling force on the hoses, thereby forming two required sealed pipe ends to be connected;

[0010] Step 4, moving the two ends of the sealed tubes to be connected to both sides of the heating unit without contacting the heating unit to melt the ends of the sealed tubes;

[0011] Step 5, removing the heating unit, mechanically pressing the two sealing tube ends together in the axial direction, and stopping the pressing immediately after the contacting step to form a material-locked connection.

[0012] Preferably, the exertion of tension on the hoses and the mechanical separation of the separation areas of the two hoses are simultaneously performed by translation.

[0013] Preferably, after the mechanical separation, the sealing end of the hose is at room temperature.

[0014] Preferably, the mechanical squeezing of the two sealing tube ends together in the axial direction is achieved by translating the two sealing tubes.

[0015] Preferably, the heating unit is a ceramic heating plate.

[0016] A sterile pipe connection machine is used in a sterile pipe connection method, comprising:

[0017] Two accommodating devices arranged opposite to each other are respectively used to accommodate two hoses to be connected;

[0018] A high frequency device for achieving a weld seam forming a separation zone;

[0019] A separation device, used to separate the separation area of ​​the two hoses, and separate the first sealed tube end and the second sealed tube end to be connected;

[0020] Heating unit for heating the two sealed tube ends to a molten state without mechanical contact.

[0021] Preferably, the two receiving devices are aligned along a common axis.

[0022] Preferably, the accommodating device is equipped with a clamping device for clamping the hose on the accommodating device.

[0023] Preferably, a clamp is also provided on the accommodating device, which is electrically connected to a high-frequency device, and the high-frequency device introduces a high-frequency voltage into the corresponding clamp so as to generate a high-frequency electric field in the hose separation area when the clamp is closed, thereby achieving fusion of the hose separation area to form a weld with a certain width.

[0024] Preferably, it also includes a working platform, and a driving system is arranged at the bottom of the working platform for driving the movement of the two accommodating devices and the clamp.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention firstly uses a high-frequency device to act on the separation area of ​​the hose, so that the internal molecules of the pipeline material in the separation area vibrate violently, causing the area to melt and fuse together, which is more conducive to the subsequent separation of the hose separation area and maintaining the airtightness of the pipeline. In addition, when the hoses are joined, an additional heating unit is used. In this way, after the hoses are heat-sealed by the high-frequency device and then separated, the ends of the hoses to be joined only need to maintain room temperature. The first aspect is energy saving. The second aspect is that the ends of the hoses to be joined at room temperature have strong sealing properties, ensuring that the materials in the pipe will not be contaminated by the outside world. The third aspect is that the two hose ends heated by the independent heating unit have good connection strength after joining. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an overall schematic diagram of a sterile pipe connection machine proposed by the present invention;

[0028] Figure 2 A schematic diagram of a separation device of a sterile pipe connection machine proposed by the present invention;

[0029] Figure 3 A schematic diagram of the hose status in step 1 of a sterile pipe connection method proposed by the present invention;

[0030] Figure 4 A schematic diagram of the hose state in step 2 of a sterile pipe connection method proposed by the present invention;

[0031] Figure 5 A schematic diagram of the hose state in step 3 of a sterile pipe connection method proposed by the present invention;

[0032] Figure 6 A schematic diagram of the hose state in step 4 of a sterile pipe connection method proposed by the present invention;

[0033] Figure 7 This is a schematic diagram of the hose status in step 5 of the aseptic pipe connection method proposed by the present invention.

[0034] In the figure: 1. working platform; 2. containing device; 3. clamp; 4. protecting device; 5. separating device; 6. clamping device; 7. heating unit. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] like Figure 2-Figure 6 As shown, a sterile take-over method comprises the following steps:

[0037] Step 1, prepare the two hoses that need to be connected;

[0038] Step 2: Use a high-frequency device to act on the areas of the two hoses that need to be separated, so that the molecules inside the pipe material in the separation area vibrate violently, causing the area to melt and fuse together;

[0039] Step 3, mechanically separating the separation areas of the two hoses by applying a pulling force on the hoses, thereby forming two required sealed pipe ends to be connected;

[0040] Step 4, moving the two ends of the sealed tubes to be connected to both sides of the heating unit 7 without contacting the heating unit 7 to melt the ends of the sealed tubes;

[0041] Step 5, removing the heating unit 7, mechanically pressing the two sealing tube ends together in the axial direction, and stopping the pressing immediately after the contact step to form a material-locked connection.

[0042] In this embodiment, the pulling force is applied to the hoses to mechanically separate the separation areas of the two hoses at the same time, which is generated by translation.

[0043] In this embodiment, after the mechanical separation, the sealing end of the hose is at room temperature.

[0044] In this embodiment, the mechanical squeezing of the two sealing tube ends together in the axial direction is achieved by translating the two sealing tubes.

[0045] In this embodiment, the heating unit 7 is a ceramic heating plate.

[0046] Compared with the prior art, the present invention first uses a high-frequency device to act on the separation area of ​​the hose, so that the internal molecules of the pipeline material in the separation area vibrate violently, causing the area to melt and fuse together, which is more conducive to the subsequent separation of the hose separation area and maintaining the airtightness of the pipeline. In addition, when the hoses are joined, an additional heating unit is used. In this way, after the hoses are heat-sealed by a high-frequency device and then separated, the ends of the hoses to be joined only need to maintain room temperature. The first aspect is energy saving. The second aspect is that the ends of the hoses to be joined at room temperature have strong sealing properties, ensuring that the materials in the pipe will not be contaminated by the outside world. The third aspect is that the two hose ends heated by the independent heating unit 7 have good connection strength after joining.

[0047] This embodiment also provides a sterile pipe connection machine, such as Figure 1 As shown, it is applied to a sterile pipe connection method, including:

[0048] Two receiving devices 2 arranged opposite to each other, the two receiving devices 2 are aligned along a common axis, and the receiving device 2 has a receiving body, and the receiving body has a recess for inserting the hose;

[0049] A working platform 1, wherein a driving system is provided at the bottom of the working platform 1, a receiving device 2 is provided at the top of the working platform 1, an opening is provided at the top of the working platform 1, and the opening corresponds to the moving range of the receiving device 2, and the driving system can adopt two XY axis driving devices, which are respectively used to drive the two receiving devices 2 to move in the XY axis directions on the working platform 1;

[0050] A high frequency device for achieving a weld seam forming a separation zone;

[0051] In this embodiment, two groups of clamps 3 are arranged between the two containing devices 2. The clamps 3 are arranged within the structural range of a protective device 4. The clamps 3 are electrically connected to a high-frequency voltage generating device. When working, the electrodes of the clamps 3 move toward each other to form a clamping force acting on the soft separation area of ​​the tube. The high-frequency voltage is introduced into the clamps 3 and a high-frequency electric field is generated between the clamp electrodes, thereby realizing the fusion of the soft tube separation area to form a weld with a certain width.

[0052] The separation device 5 is used to separate the separation areas of the two hoses, and separate the first sealed tube end and the second sealed tube end to be connected. The separation device 5 is a combined mechanism. The horizontal movement of the lead screw formed by the X-axis moving motor generates a separation force. The separation force is transmitted to the accommodating device physically connected to the separation device, and acts on the separation area of ​​the hose through the clamping device 6 arranged on the accommodating device. The driving system controls the accommodating device 2 to move horizontally, so as to achieve the separation of the hose and the separation area.

[0053] The heating unit 7 is used to heat the two sealed tube ends to a melted state without mechanical contact. The heating unit 7 is set on one side of the accommodating device 2 through a push rod motor. The push rod motor can rotate the heating unit 7 so that after the two accommodating devices 2 are abutted against each other, they will not be hindered by the heating unit 7. After the heating unit 7 heats the hose end, the push rod motor controls the heating unit 7 to withdraw. At this time, the two accommodating devices 2 are controlled to move through the drive system, so that the two sealed tube ends can be mechanically squeezed together in the axial direction. The squeezing is stopped immediately after the contact step to form a material-locked connection.

[0054] In this embodiment, a clamping device 6 is provided on the accommodating device 2 for clamping the hose on the accommodating device 2 .

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sterile pipe connection method, characterized in that: The following steps are involved: Step 1, prepare the two hoses that need to be connected; Step 2: Use a high-frequency device to act on the areas of the two hoses that need to be separated, so that the molecules inside the pipe material in the separation area vibrate violently, causing the area to melt and fuse together; Step 3, mechanically separating the separation areas of the two hoses by applying a pulling force on the hoses, thereby forming two required sealed pipe ends to be connected; Step 4, moving the two ends of the sealed tubes to be connected to both sides of the heating unit without contacting the heating unit to melt the ends of the sealed tubes; Step 5, removing the heating unit, mechanically pressing the two sealing tube ends together in the axial direction, and stopping the pressing immediately after the contacting step to form a material-locked connection.

2. A sterile pipe connection method according to claim 1, characterized in that: The pulling force is applied to the hoses and the separation areas of the two hoses are mechanically separated at the same time, which is generated by translation.

3. A sterile pipe connection method according to claim 2, characterized in that: After the mechanical separation, the sealing end of the hose is at room temperature.

4. A sterile pipe connection method according to claim 2, characterized in that: The mechanical squeezing of the two sealing tube ends together in the axial direction is achieved by translating the two sealing tubes.

5. The aseptic pipe connection method according to claim 1, characterized in that: The heating unit adopts a ceramic heating plate.

6. A sterile pipe connection machine, used in a sterile pipe connection method according to any one of claims 1 to 5, characterized in that: include: Two accommodating devices arranged opposite to each other are respectively used to accommodate two hoses to be connected; A high frequency device for achieving a weld seam forming a separation zone; A separation device, used to separate the separation area of ​​the two hoses, and separate the first sealed tube end and the second sealed tube end to be connected; Heating unit for heating the two sealed tube ends to a molten state without mechanical contact.

7. The aseptic pipe connection machine according to claim 6, characterized in that: The two receiving devices are aligned along a common axis.

8. The aseptic pipe connection machine according to claim 6, characterized in that: The receiving device is equipped with a clamping device for clamping the hose on the receiving device.

9. The aseptic pipe connection machine according to claim 6, characterized in that: A clamp is also arranged next to the accommodating device, and the clamp is electrically connected to the high-frequency device. The high-frequency device introduces a high-frequency voltage into the corresponding clamp so as to generate a high-frequency electric field in the hose separation area when the clamp is closed, thereby achieving fusion of the hose separation area to form a weld with a certain width.

10. The aseptic pipe connection machine according to claim 6, characterized in that: It also includes a working platform, and a driving system is arranged at the bottom of the working platform for driving the movement of the two accommodating devices and the clamps.

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