Inflation head for measuring sealing performance of medical liquid bag pipe orifice

Abstract

The utility model relates to the technical field of medical liquid bag sealing performance measurement, and discloses a medical liquid bag pipe opening sealing performance measurement inflation head which comprises a fixed bottom plate, a threaded groove is formed in the middle of the upper end of the fixed bottom plate, supporting assemblies are fixedly installed on the two sides of the upper end of the fixed bottom plate respectively, and connecting pipes are pressed in inner cavities of the supporting assemblies in a limiting mode. When sealing measurement is carried out on the liquid bag, the head of the injection pipeline is plugged into the bag opening of the corresponding medical liquid bag, then an external air source is connected with the ventilation opening, the air source enters the inner cavity of the air inlet through the ventilation opening, the annular rubber sleeve is expanded, the bag opening of the medical liquid bag is blocked after the annular rubber sleeve is expanded, and the medical liquid bag is filled. After the liquid bag opening is expanded and filled, the connecting pipe is externally connected with an inflation pump, airflow enters the inflation opening through the connecting pipe and the butt joint pipeline, then air enters the medical liquid bag through the inflation opening, and therefore sealing performance detection is carried out.

Description

Technical Field

[0001] This utility model relates to the field of medical liquid bag sealing performance measurement technology, specifically an inflation head for measuring the sealing performance of medical liquid bag nozzles. Background Technology

[0002] Medical infusion bags, also known as medical transfusion bags, are typically used to store liquid medications. During mass production, it is difficult to guarantee that all infusion bags will have satisfactory sealing performance. Therefore, it is necessary to conduct random sampling tests on the infusion bags to ensure their production quality.

[0003] Currently, when testing the sealing performance of infusion bags, it is usually necessary to connect an air pump to one end of a flexible tube and insert the other end into the infusion bag's opening. The air pump is then activated to inflate the bag and test its sealing performance. However, because the infusion bag's opening cannot be perfectly sealed to the flexible tube connected to the air pump, gas can easily leak out through the infusion bag's opening when the air pump inflates the bag through the flexible tube, thus affecting the accuracy of the sealing test.

[0004] Therefore, we proposed an inflation head for measuring the sealing performance of medical fluid bag nozzles to address the aforementioned issues. Utility Model Content

[0005] The purpose of this invention is to provide an inflation head for measuring the sealing performance of medical infusion bags, in order to solve the problem mentioned in the background art where the infusion bag opening cannot be sealed tightly with the hose connected to the inflation pump, causing gas to easily leak out through the infusion bag opening when the inflation pump inflates the infusion bag through the hose, thus affecting the accuracy of the infusion bag sealing test.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a medical liquid bag tube opening sealing measurement inflation head, including a fixed base plate, a threaded groove is provided in the middle of the upper end of the fixed base plate, support components are fixedly installed on both sides of the upper end of the fixed base plate, a connecting tube is limited and pressed in the inner cavity of the support component, and an inflation component is installed at one end of the connecting tube;

[0007] Preferably, the support assembly includes a support rod and a hollow ring fixedly installed on the upper end of the support rod. Elastic elements are fixedly installed on both sides of the upper end of the inner wall of the hollow ring, and a semi-circular clamping plate is fixedly installed on the lower end of the elastic element.

[0008] Preferably, the inflation assembly includes a docking pipe and an embedded mechanism fixedly installed at one end of the docking pipe.

[0009] Preferably, the embedded mechanism includes an injection pipe and an air inlet at one end of the injection pipe. An air inlet is provided at both ends of one side of the outer wall of the injection pipe, and an air vent is provided at the other end of the injection pipe. The air vent and the air inlet are connected to each other, and an annular rubber sleeve is provided on the outer surface of the injection pipe.

[0010] Preferably, a round rod is fixedly installed at the other end of the outer wall of the embedded mechanism, and a round paddle is fixedly installed at the lower end of the round rod.

[0011] Preferably, the inflation assembly includes a fixed tube and an inflation hole located in the middle of the inner cavity of the fixed tube. A rubber sleeve is fixedly fitted onto one end of the outer wall of the fixed tube, and an air extraction port is opened on one side of the outer wall of the rubber sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. When measuring the seal of the liquid bag, first insert the head of the injection pipe into the opening of the corresponding medical liquid bag, then connect the external air source (reconnect the new air pump) and the vent, so that the air source enters the inner cavity of the air inlet through the vent, causing the annular rubber sleeve to expand. After the annular rubber sleeve expands, it blocks the opening of the medical liquid bag and fills it up. After the liquid bag opening is fully expanded, connect the external air pump through the connecting pipe, and the airflow enters the air inlet through the connecting pipe and the docking pipe, and then air is introduced into the medical liquid bag through the air inlet to test the sealing performance.

[0014] 2. When measuring the seal of the liquid bag, insert the head of the inflation port into the inner cavity of the corresponding medical liquid bag opening, while ensuring the liquid bag opening is wrapped around the outer wall of the fixing tube. Connect an external air pump to the air extraction port to remove the air between the inner wall of the rubber sleeve and the outer wall of the fixing tube, thus pressing the rubber sleeve tightly against the outer wall of the fixing tube, thereby pressing the liquid bag opening tightly against the outer wall of the fixing tube. Connect an external air pump through the connecting pipe, and the inflation port and connecting pipe are interconnected, allowing air to be injected into the liquid bag through the inflation port, thereby performing a seal performance test. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the inflatable component of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the embedded mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of another connection method between the connecting pipe and the inflation component in this utility model;

[0019] Figure 5 This is a schematic diagram of another connection method for the inflatable component of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the support component of this utility model.

[0021] In the diagram: 1. Fixed base plate; 2. Threaded groove; 3. Support assembly; 31. Erection rod; 32. Hollow ring; 33. Elastic element; 34. Semi-circular clamp; 4. Connecting pipe; 5. Inflation assembly; 51. Connecting pipe; 52. Embedded mechanism; 521. Injection pipe; 522. Inflation port; 523. Air inlet; 524. Vent; 525. Annular rubber sleeve; 53. Round rod; 54. Round paddle; 55. Fixed pipe; 56. Inflation hole; 57. Rubber sleeve; 58. Air extraction port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1-3 and Figure 6 The medical fluid bag tube opening sealing measurement inflation head includes a fixed base plate 1. A threaded groove 2 is opened in the middle of the upper end of the fixed base plate 1. A screw is threaded in the middle of the threaded groove 2. The fixed base plate 1 is fixed to the table by the screw, which improves the stability of the bottom of the support component 3. The support components 3 are fixedly installed on both sides of the upper end of the fixed base plate 1. A connecting tube 4 is limited and pressed in the inner cavity of the support component 3.

[0024] The support component 3 is configured to support the connecting pipe 4 and the inflation component 5, thereby improving the stability of the inflation component 5 when inflating the liquid bag. The inflation component 5 is installed at one end of the connecting pipe 4 and is configured to form a sealed connection with the opening of the liquid bag.

[0025] The support assembly 3 includes a support rod 31 and a hollow ring 32 fixedly installed on the upper end of the support rod 31. Elastic elements 33 are fixedly installed on both sides of the upper end of the inner wall of the hollow ring 32. A semi-circular clamp 34 is fixedly installed on the lower end of the elastic element 33. The semi-circular clamp 34 is positioned to press the connecting pipe 4 into the inner cavity of the hollow ring 32 under the elastic force of the elastic element 33.

[0026] The inflation assembly 5 includes a docking pipe 51 and an embedded mechanism 52 fixedly installed at one end of the docking pipe 51. The embedded mechanism 52 is configured to inflate the inside of the liquid bag. One end of the connecting pipe 4 is externally connected to an inflation pump (not shown in the figure). The inflation pump is configured to inflate the connecting pipe 4.

[0027] The embedded mechanism 52 includes an injection pipe 521 and an air inlet 522 opened at one end of the injection pipe 521, wherein the air inlet 522 is provided through the injection pipe 521 and is connected to the docking pipe 51 and the connecting pipe 4.

[0028] An air inlet 523 is provided at both ends of one side of the outer wall of the injection pipe 521, and an air outlet 524 is provided at the other end of the injection pipe 521. The air outlet 524 and the air inlet 523 are connected to each other. An annular rubber sleeve 525 is provided on the outer surface of the injection pipe 521.

[0029] A round rod 53 is fixedly installed at the other end of the outer wall of the embedded mechanism 52, and a round paddle 54 is fixedly installed at the lower end of the round rod 53.

[0030] It should be noted that the air source of the air pump connected to the connecting pipe 4 does not enter the air inlet 523. The air source entering the air inlet 523 is the air source of the new air pump that is reconnected to the air outlet 524.

[0031] In this embodiment: When measuring the seal of the liquid bag, the head of the injection pipe 521 is first inserted into the opening of the corresponding medical liquid bag. Then, an external air source (a new air pump is reconnected) and the air vent 524 are connected, so that the air source enters the inner cavity of the air inlet 523 through the air vent 524, causing the annular rubber sleeve 525 to expand. After the annular rubber sleeve 525 expands, it blocks the opening of the medical liquid bag and fills it up. After the liquid bag opening is filled up, an external air pump is connected through the connecting pipe 4. The airflow enters the air inlet 522 through the connecting pipe 4 and the docking pipe 51, and then air is introduced into the medical liquid bag through the air inlet 522 to perform the sealing performance test.

[0032] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 4-5 and Figure 6 The medical fluid bag tube opening sealing measurement inflation head includes a fixed base plate 1. A threaded groove 2 is opened in the middle of the upper end of the fixed base plate 1. A screw is threaded in the middle of the threaded groove 2. The fixed base plate 1 is fixed to the table by the screw, which improves the stability of the bottom of the support component 3. The support components 3 are fixedly installed on both sides of the upper end of the fixed base plate 1. A connecting tube 4 is limited and pressed in the inner cavity of the support component 3.

[0033] The support component 3 is configured to support the connecting pipe 4 and the inflation component 5, thereby improving the stability of the inflation component 5 when inflating the liquid bag. The inflation component 5 is installed at one end of the connecting pipe 4 and is configured to form a sealed connection with the opening of the liquid bag.

[0034] The support assembly 3 includes a support rod 31 and a hollow ring 32 fixedly installed on the upper end of the support rod 31. Elastic elements 33 are fixedly installed on both sides of the upper end of the inner wall of the hollow ring 32. A semi-circular clamp 34 is fixedly installed on the lower end of the elastic element 33. The semi-circular clamp 34 is positioned to press the connecting pipe 4 into the inner cavity of the hollow ring 32 under the elastic force of the elastic element 33.

[0035] The inflation assembly 5 includes a fixed tube 55 and an inflation hole 56 located in the middle of the inner cavity of the fixed tube 55. A rubber sleeve 57 is fixedly sleeved on one end of the outer wall of the fixed tube 55, and an air extraction port 58 is opened on one side of the outer wall of the rubber sleeve 57.

[0036] An air pump (not shown in the figure) is connected to the inner cavity of the air extraction port 58. The air pump is designed to remove air from the inner cavities of the fixed tube 55 and the rubber sleeve 57, so that the rubber sleeve 57 is adsorbed onto the outer wall of the fixed tube 55.

[0037] In this embodiment: when measuring the seal of the liquid bag, the head of the inflation hole 56 is inserted into the inner cavity of the corresponding medical liquid bag opening, while the opening of the liquid bag is wrapped around the outer wall of the fixing tube 55. After the air between the inner wall of the rubber sleeve 57 and the outer wall of the fixing tube 55 is extracted through the connection of an external air pump and the air extraction port 58, the rubber sleeve 57 is pressed tightly around the outer wall of the fixing tube 55, thereby pressing the opening of the liquid bag tightly around the outer wall of the fixing tube 55. The inflation pump is connected to the external air pump through the connecting pipe 4, and the inflation hole 56 and the connecting pipe 4 are interconnected, so that the air source is injected into the liquid bag through the inflation hole 56, thereby performing the sealing performance test.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A medical liquid bag port seal measurement inflation head comprising a fixed base plate (1), characterized in that: The upper end middle part of the fixed bottom plate (1) is provided with a threaded groove (2), and the upper end of the fixed bottom plate (1) is respectively provided with a supporting assembly (3). The inner cavity of the supporting assembly (3) is provided with a connecting pipe (4), and one end of the connecting pipe (4) is provided with an inflation assembly (5).

2. The medical liquid bag port sealability measuring inflation head according to claim 1, characterized by: The supporting assembly (3) comprises a supporting rod (31) and a hollow ring (32) fixedly installed on the upper end of the supporting rod (31). The inner wall of the hollow ring (32) is provided with an elastic element (33) on both sides of the upper end. The lower end of the elastic element (33) is fixedly provided with a semicircular clamping plate (34).

3. The medical liquid bag port sealability measuring inflation head according to claim 1, characterized by: The inflation assembly (5) comprises a butt joint pipe (51) and an embedded mechanism (52) fixedly installed on one end of the butt joint pipe (51).

4. The medical liquid bag port sealability measuring inflation head according to claim 3, characterized by: The embedded mechanism (52) comprises an injection pipe (521) and an inflation port (522) formed on one end of the injection pipe (521). The outer wall of the injection pipe (521) is provided with an air inlet (523) on both ends of one side. The other end of the injection pipe (521) is provided with an air vent (524) on one side. The air vent (524) and the air inlet (523) are in communication. The outer surface of the injection pipe (521) is provided with an annular rubber sleeve (525).

5. The medical fluid bag spout seal integrity measurement inflation head of claim 3, wherein: The outer wall of the embedded mechanism (52) is fixedly provided with a round rod (53), and the lower end of the round rod (53) is fixedly provided with a round bat (54).

6. The medical liquid bag port sealability measuring inflation head according to claim 4, characterized by: The inflation assembly (5) comprises a fixed pipe (55) and an inflation hole (56) arranged in the inner cavity of the fixed pipe (55). The outer wall of the fixed pipe (55) is fixedly provided with a rubber sleeve (57) on one end. The outer wall of the rubber sleeve (57) is provided with an air outlet (58) on one side.

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