Processing technology of monitoring box for blood component separator

Abstract

The present application relates to a kind of blood component separator monitoring box processing technology, comprising: S01 is set up in upper cover glue containing groove;S02 UV glue is added into glue containing groove;S03 is in upper cover pressing monitoring box shell;S04 is cured by solidification device UV glue, so that monitoring box shell and upper cover are bonded into one;S05 is coated with UV glue on monitoring box shell;S06 is covered with film material on monitoring box shell and is pressed;S07 is cured by solidification device UV glue, film material and monitoring box body are bonded into one, thus monitoring box assembly is completed;S08 upper cover, film material and monitoring box shell are sealed into several passages, respectively, and gas is introduced into each passage of monitoring box upper passage and is sealed performance detection.The process utilizes the good light transmittance of PMMA material monitoring box, uses UV glue to complete the assembly of monitoring box, replaces the traditional process of ultrasonic welding monitoring box, and then avoids the particle pollution of monitoring box caused by ultrasonic welding and welding stress.

Description

[Technical Field]

[0001] This invention relates to a manufacturing process for a monitoring box for a blood component separator, belonging to the field of blood component separators. [Background Technology]

[0002] Blood component separators are widely used both domestically and internationally for collecting blood components, particularly platelets. The monitoring box is a crucial component used with these separators, essentially integrating the complex tubing within the separator. During operation, to facilitate direct observation of blood color and condition changes, both the monitoring box cover and shell are made of high-transparency PMMA material. Traditionally, ultrasonic welding is used to process this material; however, this process has several drawbacks: First, ultrasonic welding involves high-frequency vibration, and PMMA is a brittle material. This vibration easily generates numerous tiny fragments in the monitoring box shell, requiring a high-pressure gas purging step after welding to prevent particulate contamination, increasing production efficiency. Second, welding leaves stress at the weld joints, creating stress concentration points that can crack during sterilization or use. These cracks can lead to blood leakage during use, resulting in product failure and potential medical accidents. [Summary of the Invention]

[0003] Based on the shortcomings of the above-mentioned related technologies, the technical problem to be solved by the present invention is: to solve the problems of reduced production efficiency due to the increase of subsequent processing steps and product scrap caused by the increase of product stress in the traditional production process of monitoring boxes by ultrasonic welding, and to provide a processing technology for monitoring boxes for blood component separators.

[0004] The manufacturing process of a monitoring box for a blood component separator according to the present invention includes:

[0005] S01 has a glue-receiving groove on the top cover;

[0006] S02 Add the UV adhesive to the adhesive container;

[0007] S03 presses the monitoring box housing onto the upper cover;

[0008] S04 uses a curing device to cure UV adhesive, so that the monitoring box shell and the top cover are bonded together as one piece;

[0009] S05 applies UV adhesive to the monitoring box housing;

[0010] S06 covers the monitoring box housing with a film and presses it together;

[0011] S07 uses a curing device to cure UV adhesive, bonding the membrane material and the monitoring box body together, thus completing the assembly of the monitoring box;

[0012] The S08 cover, membrane material, and monitoring box housing are sealed together to form several channels, and the sealing performance of each channel on the monitoring box is tested by introducing gas.

[0013] Optionally, the monitoring box housing includes: a partition placed inside the housing, wherein a passage frame and a switch protrusion are respectively provided on both sides of the partition, the passage frame and the switch protrusion respectively form a plurality of groove-shaped areas on the partition, and the groove-shaped areas of the passage frame and the groove-shaped areas of the switch protrusion are connected.

[0014] Optionally, the extension path of the adhesive reservoir in S01 corresponds to the extension path of the passage frame, and the top of the passage frame is contained within the adhesive reservoir.

[0015] Optionally, the UV adhesive in S02 is filled into the adhesive reservoir using a fully automatic dispensing machine with continuous dispensing, and the amount of UV adhesive filled is less than or equal to 1 / 2 of the depth of the adhesive reservoir.

[0016] Optionally, the monitoring box housing and the top cover are pressed together by pressing. When pressing, the monitoring box housing is placed above the top cover, and the pressing points include at least the four corners and the center of the monitoring box housing.

[0017] Optionally, both the monitoring box housing and the top cover are made of PMMA material, and the membrane material is made of PVC material.

[0018] Optionally, the area covered by the UV adhesive in S05 includes the area applied to the switch protrusion, wherein the film material forms a sealed connection with the switch protrusion.

[0019] Optionally, the membrane material described in S06 is pressed to bond with the monitoring box housing. When pressing, the membrane material is placed above the monitoring box housing, and the pressing coverage area includes the area above the switch protrusion and the edge of the monitoring box housing.

[0020] Optionally, the gas described in S08 is an inert gas, the gas pressure in the passage is greater than the standard atmospheric pressure of 50 kPa, and the gas passage time is greater than or equal to 2 minutes.

[0021] Optionally, the device for curing the UV adhesive described in S04 and S07 is an ultraviolet irradiation device.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] The present invention discloses a processing technology for a monitoring box for a blood component separator. This technology utilizes the good light transmittance of PMMA material monitoring boxes and uses UV adhesive to assemble the monitoring boxes, replacing the traditional process of ultrasonic welding of monitoring boxes, thereby avoiding particulate contamination and welding stress caused by ultrasonic welding. [Attached Image Description]

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0025] Figure 1 : A schematic diagram of one side of the housing passage frame of the present invention;

[0026] Figure 2 : A schematic diagram of the structure of the protruding side of the switch housing of the present invention;

[0027] Figure 3 : A schematic diagram of the assembly structure of the monitoring box of the present invention;

[0028] Figure 4 : A schematic diagram of the structure of the top cover of this invention;

[0029] Figure 5 : Process flow diagram of the present invention.

[0030] In the picture:

[0031] Housing 1, partition 101, passage frame 102, switch protrusion 103;

[0032] Top cover 2, adhesive reservoir 201;

[0033] Membrane material 3.

Detailed Implementation Methods

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0035] The present invention will be further illustrated by specific embodiments below, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0036] like Figures 1-2 As shown, the manufacturing process of a monitoring box for a blood component separator includes:

[0037] S01 has an adhesive groove on the upper cover 2;

[0038] SO2 is used to add UV adhesive to the adhesive container;

[0039] S03 presses the monitoring box housing onto the upper cover;

[0040] S04 uses a curing device to cure UV adhesive, so that the monitoring box shell and the top cover are bonded together as one piece;

[0041] S05 applies UV adhesive to the monitoring box housing;

[0042] S06 covers the monitoring box housing with a film and presses it together;

[0043] S07 uses a curing device to cure UV adhesive, bonding the membrane material and the monitoring box body together, thus completing the assembly of the monitoring box;

[0044] The S08 cover, membrane material, and monitoring box housing are sealed together to form several channels, and the sealing performance of each channel on the monitoring box is tested by introducing gas.

[0045] US5547453A presents an existing structure for a monitoring box, detailed in FIG4, FIG5, FIG6, and FIG7.

[0046] The monitoring box housing includes: a partition 101 placed inside the housing 1. The partition 101 is provided with a passage frame 102 and a switch protrusion 103 on both sides. The passage frame 102 and the switch protrusion 103 respectively form a number of groove-shaped areas on the partition 101. The groove-shaped areas of the passage frame 102 and the groove-shaped areas of the switch protrusion 103 are connected.

[0047] The extension path of the adhesive reservoir 201 in S01 corresponds to the extension path of the passage frame 102. The top of the passage frame 102 is contained within the adhesive reservoir 201, and a sealed connection is formed between the passage frame 102 and the top cover 2. Both the monitoring box housing and the top cover 2 are injection molded.

[0048] The UV adhesive described in S02 is continuously dispensed into the adhesive reservoir 201 using a fully automatic dispensing machine, and the amount of UV adhesive dispensed is less than or equal to 1 / 2 of the depth of the adhesive reservoir 201.

[0049] The monitoring box housing and the upper cover 2 are pressed together by pressing. When pressing, the monitoring box housing is placed above the upper cover 2. The pressing points include at least the four corners and the center of the monitoring box housing. The evenly distributed pressing points are conducive to a tighter fit between the upper cover 2 and the monitoring box housing.

[0050] The monitoring box housing and the top cover 2 are both made of PMMA material, and the membrane material 3 is made of PVC material. All of the above materials have good light transmittance, which is conducive to ultraviolet radiation into the monitoring box to complete the curing of UV adhesive.

[0051] S05 The area coated with UV adhesive includes the area applied to the switch protrusion 103, and the film material 3 forms a sealed connection with the switch protrusion 103.

[0052] The membrane material 3 described in S06 is pressed into the monitoring box housing by pressing. When pressing, the membrane material 3 is placed above the monitoring box housing. The pressing coverage area includes the area above the switch protrusion 103 and the edge of the monitoring box housing. When pressing, it is necessary to ensure that the membrane material 3 and the top of the switch protrusion 103 are in full contact, thereby ensuring the sealing of the connection between the membrane material 3 and the switch protrusion 103.

[0053] In actual use, blood components flow through the passage in the monitoring box. The membrane material 3, as an elastic element, can use its own deformation to press into the switch protrusion 103 to seal the passage between the switch protrusion 103 and the passage frame 102, thus playing the role of a switch. Therefore, the processing technology must ensure the sealing between the membrane material 3 and the switch protrusion 103 to prevent leakage.

[0054] In this embodiment, preferably, the pressing is achieved by using pneumatic transmission to press the monitoring box, that is, using a cylinder as the prime mover to press and assemble the monitoring box housing; in actual use, other transmission methods can also be used for pressing, such as mechanical transmission and hydraulic transmission.

[0055] The gas described in S08 is an inert gas with a pressure greater than 50 kPa above the standard atmospheric pressure in the passage and a gas passage duration greater than or equal to 2 minutes. In this embodiment, nitrogen is selected as the detection gas. During the pressure test, a sealing test device is used to pressurize one end of the passage in the monitoring box and temporarily seal the other outlets of the passage. Furthermore, the nitrogen in the passage is pressurized to 155 kPa and maintained for 2 minutes. After confirming that there is no leakage, the sealing test of the passage of the monitoring box is qualified.

[0056] The device for curing UV adhesive described in S04 and S07 is an ultraviolet irradiation device. In this embodiment, the ultraviolet irradiation device adopts an ultraviolet lamp operating table, which is a conventional technology. The operating table is equipped with a control unit, which integrates an audible and visual alarm module. According to the setting of the ultraviolet lamp irradiation time by the control unit, when the set irradiation time is reached, the personnel are reminded by audible and visual alarms to monitor the completion of curing.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manufacturing process for a monitoring box for a blood component separator, characterized in that, Includes the following steps: The monitoring box housing includes: a partition (101) placed inside the housing (1), wherein a passage frame (102) and a switch protrusion (103) are respectively provided on both sides of the partition (101), the passage frame (102) and the switch protrusion (103) respectively form a number of groove-shaped areas on the partition (101), and the groove-shaped areas of the passage frame (102) and the groove-shaped areas of the switch protrusion (103) are connected; The monitoring box housing and the top cover are pressed together by pressing. When pressing, the monitoring box housing is placed on top of the top cover, and the pressing points include at least the four corners and the center of the monitoring box housing. S01 An adhesive-containing groove is formed on the upper cover, the extension path of the adhesive-containing groove corresponding to the extension path of the passage frame (102), and the top of the passage frame (102) is contained within the adhesive-containing groove; S02. UV adhesive is added to the adhesive container. The UV adhesive is continuously dispensed into the adhesive container using a fully automatic dispensing machine. The amount of UV adhesive added is less than or equal to 1 / 2 of the depth of the adhesive container. S03 The monitoring box housing is pressed onto the top cover. Both the monitoring box housing and the top cover are made of PMMA material, and the film material is PVC material. S04 uses a curing device to cure UV adhesive, making the monitoring box shell and the top cover bonded together as one piece; S05 Apply UV adhesive to the monitoring box housing; S06 Cover the monitoring box housing with a membrane material and press it together. The membrane material is pressed together with the monitoring box housing by pressing. When pressing, the membrane material is placed above the monitoring box housing. The pressing coverage area includes the area above the switch protrusion (103) and the edge of the monitoring box housing. S07 uses a curing device to cure UV adhesive, bonding the membrane material and the monitoring box body together, thus completing the assembly of the monitoring box; The S08 cover, membrane material, and monitoring box housing are sealed together to form several channels, and the sealing performance of each channel on the monitoring box is tested by introducing gas.

2. The manufacturing process of a monitoring box for a blood component separator according to claim 1, characterized in that: S05 The area covered with UV adhesive includes the area applied to the switch protrusion (103), and the film material forms a sealed connection with the switch protrusion (103).

3. The manufacturing process of a monitoring box for a blood component separator according to claim 1, characterized in that: The gas described in S08 is an inert gas, and the gas pressure in the passage is greater than the standard atmospheric pressure of 50 kPa, and the gas passage time is greater than or equal to 2 minutes.

4. The manufacturing process of a monitoring box for a blood component separator according to claim 1, characterized in that: The device for curing UV adhesive described in S04 and S07 is an ultraviolet irradiation device.

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