A portable and simple hand-held infusion bag leak detector

Abstract

The present invention discloses a portable and simple hand-held infusion bag leak detector, comprising a symmetrically arranged test assembly; the test assembly comprises a first shell and a second shell, the two second shells have an opening structure on one side opposite to the other, an elastic body is detachably connected to the inner side of the second shell, a reeling mechanism is arranged on the top of one end of the second shell away from the first shell, a reeling mechanism is arranged in the first shell, the reeling mechanism is connected to one end of a PH test paper, the other end of the PH test paper is connected to the reeling mechanism, the PH test paper bypasses the elastomer and contacts the lower end surface of the elastomer, and the upper first shell is hinged with the lower first shell. The present invention utilizes the principle that when the drug liquid leaks out, the drug liquid reacts with the PH test paper to dye, and checks the leakage of the configured infusion bag through simple operation. The device is small in size, easy to operate, and the detection results are clear and easy to distinguish. It can judge whether the infusion is contaminated by other infusions and which type of infusion has a leak by different PH values.

Description

Technical Field

[0001] The invention relates to the technical field of medicine packaging, and in particular to a portable and simple hand-held infusion bag leak detector. Background Art

[0002] Infusion, or large-volume injection, refers to a large-dose injection that is administered intravenously, with a single dose of more than 100 ml. It is a branch of injections and is usually packaged in glass or plastic infusion bottles or bags.

[0003] Infusion bags are divided into single-chamber, double-chamber or multi-chamber structures. Infusion bags are usually made of two layers of plastic film through packaging. Therefore, infusion bags containing liquid medicine will inevitably encounter problems such as bumps during storage or transportation or during drug preparation, causing the infusion bags to be damaged. Some infusion bags also have poor packaging quality, which causes the liquid medicine in the infusion bag to leak. However, the leakage holes or gaps are relatively small and due to the presence of liquid in the infusion bag, it is not easy to find the leakage of the infusion bag, and external pollutants will enter the infusion bag through the broken leaks to cause contamination of the infusion. During the infusion treatment of patients, the leakage of the infusion bag causes the liquid medicine to deteriorate or the amount of medicine to decrease, affecting the healing effect on the patient, and seriously affecting the patient's safety. Therefore, there is an urgent need for an instrument that is convenient for detecting leakage of infusion bags. Summary of the invention

[0004] The purpose of the present invention is to provide a portable and simple hand-held infusion bag leak detector to solve the above problems. The present invention is provided with two mutually hinged shells, an elastomer is arranged in the shell, and a PH test paper is laid on the inner side of the elastomer. Since different medicines have different PH values, the infusion bag is clamped by the shell for wiping, and the color change state of the PH test paper can be observed to determine whether the infusion bag is leaking or the medicine of other infusion bags has leaked onto the infusion bag. When the medicine leaks out, the medicine reacts with the PH test paper to dye (commonly used: 0.9% sodium chloride PH4.5-7.0, 5% glucose PH3.2-6.5, glucose sodium chloride PH3.5-5.5, sodium lactate Ringer PH6.0-7.5). The leakage of the configured infusion bag is checked through simple operation. The device is small in size, easy to operate, and the detection results are clear and easy to distinguish. Moreover, it can judge whether the infusion bag is leaking itself or contaminated by other infusion leaks through different PH values, and preliminarily judge the type of medicine leaking.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A portable and simple hand-held infusion bag leak detector comprises symmetrically arranged test components, one end of which is hinged to each other;

[0007] The test assembly includes a first shell and a second shell fixedly connected to one side of the first shell, the two opposite sides of the second shells are open structures, an elastomer is detachably connected to the inner side of the second shell, a reeling mechanism is provided at the top of one end of the second shell away from the first shell, a reeling mechanism is provided in the first shell, the reeling mechanism is connected to one end of a PH test paper, and the other end of the PH test paper is connected to the reeling mechanism, the PH test paper bypasses the elastomer and contacts with the lower end surface of the elastomer, the first shell located above is hinged to the first shell located below, and the hinge points of the two first shells are far away from the second shell.

[0008] Preferably, the winding mechanism includes a second rotating shaft rotatably connected to the first shell body, a paper jamming groove is provided on the side wall of the second rotating shaft, a one-way turntable is fixedly connected to one end of the second rotating shaft, a hollow gear is rotatably sleeved on the outer side of the one-way turntable, a sliding one-way disk is slidably connected in the hollow gear, one end of the sliding one-way disk is in conflict with the one-way turntable, a second spring is fixedly connected between the other end of the sliding one-way disk and the hollow gear, helical teeth with opposite inclination directions are provided on the opposite surfaces of the sliding one-way disk and the one-way turntable along the circumferential direction, the hollow gear and the sliding one-way disk are matched through a spline, the hollow gear is meshed with a driving part, and a one-way damper is fixedly connected between the rotating shaft of the hollow gear and the first shell.

[0009] Preferably, the driving part includes a sliding rack slidably connected in the first shell, the sliding direction of the sliding rack is perpendicular to the second rotating shaft, a gap is provided between the lower end of the sliding rack located above and the top of the hollow gear located below, and a gap is provided between the upper end of the sliding rack located below and the bottom of the hollow gear located above.

[0010] Preferably, the unwinding mechanism includes a third shell hinged on the top of the second shell, a first rotating shaft is rotatably connected in the third shell, a damper is fixedly connected between the first rotating shaft and the third shell, and a PH test paper roller is sleeved on the first rotating shaft.

[0011] Preferably, the top of the first shell is hinged with a cover body, the bottom of the cover body is sequentially fixedly connected with a plurality of vertical rods, the inner side of the bottom of the first shell is laterally fixedly connected with a cross bar, the top of the cross bar is fixedly connected with a plurality of protrusions, the vertical rods correspond to the positions of the protrusions, the second rotating shaft and the hollow gear are rotatably connected between the vertical rods and the protrusions, and the sliding direction of the sliding rack is perpendicular to the cross bar.

[0012] Preferably, a sliding groove is provided on the cross bar, the sliding rack is slidably arranged in the sliding groove, and the sliding rack is fixedly connected to a side wall of one end of the sliding groove by a first spring.

[0013] Preferably, a first telescopic rod and a second telescopic rod are fixedly connected at both ends inside the second shell, respectively; an end of the first telescopic rod away from the second shell is rotatably connected to a first roller; an end of the second telescopic rod away from the second shell is rotatably connected to a second roller; the PH test paper is in contact with the first roller and the second roller.

[0014] Preferably, an opening is provided on a bottom side wall of the third shell away from the first shell, a third roller is rotatably connected to one end of the top of the second shell, and the PH test paper passes through the opening and contacts the third roller.

[0015] Preferably, a thumb ring is fixedly connected to the outer side wall opposite to the second shell.

[0016] Preferably, the elastomer is a highly elastic sponge.

[0017] The present invention has the following technical effects:

[0018] When checking whether the infusion bag is leaking, the two second shells of the leak detector are buckled together, the PH test paper and the infusion bag are attached together, the two second shells are firmly held by hand, the PH test paper is pressed against the edge of the infusion bag, the infusion bag is squeezed, the second shell is opened and the PH test paper is checked for color change, and the color is confirmed to be the same as the corresponding PH value of the liquid medicine, so as to determine whether the infusion bag is leaking;

[0019] Open the second shell and flatten it, wipe and press the surface of the infusion bag with a single-sided pH test paper to check for surface leakage;

[0020] By arranging an unwinding mechanism at the end of the second shell and arranging a rewinding mechanism in the first shell, it is possible to detect multiple infusion bags, avoid frequent replacement of pH test papers, and enhance the convenience of use of the leak detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 for Figure 2 AA cross-sectional structure diagram;

[0025] Figure 4 It is a schematic diagram of the matching structure of the sliding rack and the hollow gear;

[0026] Figure 5 It is a schematic diagram of the hollow gear structure;

[0027] Figure 6 It is a schematic diagram of the one-way turntable structure.

[0028] Among them, 1 is the first shell, 101 is the cover, 102 is the cross bar, 103 is the vertical bar, 104 is the first spring, 2 is the second shell, 3 is the third shell, 301 is the first rotating shaft, 4 is the elastic body, 5 is the pH test paper, 6 is the second rotating shaft, 601 is the paper jam slot, 602 is the one-way turntable, 603 is the sliding one-way disk, 604 is the hollow gear, 605 is the second spring, 7 is the first telescopic rod, 701 is the first roller, 8 is the sliding rack, 9 is the second telescopic rod, 901 is the second roller, and 10 is the third roller. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 1-6 As shown, the present invention provides a portable and simple hand-held infusion bag leak detector, comprising symmetrically arranged test components, one end of which is hinged to each other;

[0032] The test assembly includes a first shell 1 and a second shell 2 fixedly connected to one side of the first shell 1. The opposite side of the two second shells 2 is an open structure. An elastomer 4 is detachably connected to the inner side of the second shell 2. A reeling mechanism is provided on the top of one end of the second shell 2 away from the first shell 1. A reeling mechanism is provided in the first shell 1. The reeling mechanism is connected to one end of a PH test paper 5. The other end of the PH test paper 5 is connected to the reeling mechanism. The PH test paper 5 bypasses the elastomer 4 and contacts the lower end surface of the elastomer 4. The first shell 1 located above is hinged to the first shell 1 located below, and the hinge points of the two first shells 1 are far away from the second shell 2.

[0033] When checking whether the infusion bag is leaking, the two second shells 2 of the leak detector are buckled together, the PH test paper 5 and the infusion bag are attached, the two second shells 2 are firmly held by hand, the PH test paper 5 is pressed against the edge of the infusion bag, the infusion bag is squeezed, the second shell 2 is opened and the PH test paper 5 is checked for color change, and the color is confirmed to be the same as the corresponding PH value of the liquid medicine, so as to determine whether the infusion bag is leaking;

[0034] Open the second housing 2 and flatten it, wipe and press the surface of the infusion bag with a single-sided pH test paper 5 to check for surface leakage;

[0035] By arranging an unwinding mechanism at the end of the second shell 2 and arranging a rewinding mechanism in the first shell 1, it is possible to detect multiple infusion bags, avoid frequent replacement of the PH test paper 5, and enhance the convenience of use of the leak detector.

[0036] A further optimized solution is provided, the winding mechanism includes a second rotating shaft 6 rotatably connected to the first shell 1, a paper jam groove 601 is provided on the side wall of the second rotating shaft 6, a one-way turntable 602 is fixedly connected to one end of the second rotating shaft 6, a hollow gear 604 is rotatably sleeved on the outer side of the one-way turntable 602, a sliding one-way disk 603 is slidably connected in the hollow gear 604, one end of the sliding one-way disk 603 is in conflict with the one-way turntable 602, a second spring 605 is fixedly connected between the other end of the sliding one-way disk 603 and the hollow gear 604, the sliding one-way disk 603 and the one-way turntable 602 have opposite helical teeth along the circumferential direction on the opposing surfaces thereof, the hollow gear 604 is matched with the sliding one-way disk 603 through a spline, the hollow gear 604 is meshed with a driving part, and a one-way damper is fixedly connected between the rotating shaft of the hollow gear 604 and the first shell 1.

[0037] A further optimized solution is that the driving part includes a sliding rack 8 slidably connected to the first shell 1, the sliding direction of the sliding rack 8 is perpendicular to the second rotating shaft 6, a gap is set between the lower end of the sliding rack 8 located above and the top of the hollow gear 604 located below, and a gap is set between the upper end of the sliding rack 8 located below and the bottom of the hollow gear 604 located above.

[0038] When the PH test paper 5 changes color, the two second shells 2 are pressed hard, thereby driving the two first shells 1 to rotate relative to each other, and the first shell 1 drives the sliding rack 8 to rotate toward the relative hollow gear 604, and the hollow gear 604 drives the sliding one-way disk 603 to rotate, and the sliding one-way disk 603 drives the one-way turntable 602 to rotate, so that the second rotating shaft 6 rotates, and one end of the PH test paper 5 is nested in the paper jam slot 601 to realize the winding of the PH test paper 5. It is provided with helical teeth so that the second rotating shaft 6 can only rotate in the winding direction. The one-way damper arranged on the rotating shaft of the hollow gear 604 can prevent the PH test paper 5 from loosening when the second shell 2 is pressed against the infusion bag. At the same time, since a gap is reserved between the sliding rack 8 and the hollow gear 604, the second rotating shaft 6 will not be driven to rotate when the second shell 2 is pressed against the infusion bag, and normal detection will not be affected. When the PH test paper 5 needs to be moved, the downward pressure of the second shell 2 can be increased to achieve the movement of the PH test paper 5.

[0039] In a further optimized solution, the unwinding mechanism includes a third housing 3 hinged on the top of the second housing 2, a first rotating shaft 301 is rotatably connected in the third housing 3, a damper is fixedly connected between the first rotating shaft 301 and the third housing 3, and a PH test paper roller is sleeved on the first rotating shaft 301. The first rotating shaft 301 is provided to facilitate the storage of the PH test paper roller, and the damper is provided on the first rotating shaft 301 to prevent the PH test paper 5 from loosening during the process of pressing the infusion bag.

[0040] A further optimized solution is that a cover body 101 is hinged on the top of the first shell 1, and a plurality of vertical rods 103 are fixedly connected in sequence to the bottom of the cover body 101. A cross bar 102 is laterally fixedly connected to the inner side of the bottom of the first shell 1, and a plurality of protrusions are fixedly connected above the cross bar 102. The vertical rod 103 corresponds to the position of the protrusions. The second rotating shaft 6 and the hollow gear 604 are rotatably connected between the vertical rod 103 and the protrusions, and the sliding direction of the sliding rack 8 is perpendicular to the cross bar 102.

[0041] In a further optimized solution, a slide groove is provided on the cross bar 102, the sliding rack 8 is slidably arranged in the slide groove, and the sliding rack 8 is fixedly connected to the side wall of one end of the slide groove by a first spring 104. The first spring 104 can ensure the meshing of the sliding rack 8 and the hollow gear 604, and prevent the sliding rack 8 from angularly deflecting after the second housing 2 rotates, thereby affecting the meshing of the sliding rack 8 and the hollow gear 604.

[0042] In a further optimized solution, the first telescopic rod 7 and the second telescopic rod 9 are fixedly connected to the two ends of the second housing 2, the first telescopic rod 7 is rotatably connected to the first roller 701 at one end away from the second housing 2, and the second telescopic rod 9 is rotatably connected to the second roller 901 at one end away from the second housing 2, and the PH test paper 5 is in contact with the first roller 701 and the second roller 901. By setting the first telescopic rod 7 and the second telescopic rod 9, the tension of the PH test paper 5 can be maintained, thereby ensuring the effectiveness of the detection.

[0043] As a further optimization scheme, an opening is provided on the bottom side wall of the third shell 3 away from the first shell 1 , and a third roller 10 is rotatably connected to one end of the top of the second shell 2 , and the PH test paper 5 passes through the opening and contacts the third roller 10 .

[0044] According to a further optimized solution, a thumb ring is fixedly connected to the outer side wall opposite to the second shell 2 .

[0045] According to a further optimization scheme, the elastic body 4 is a highly elastic sponge.

[0046] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A portable, simple, hand-held infusion bag leak detector, characterized in that: It comprises symmetrically arranged test assemblies, one end of which is hinged to each other; The test assembly comprises a first shell (1), a second shell (2) fixedly connected to one side of the first shell (1), the two second shells (2) having opposite sides being an open structure, an elastic body (4) being detachably connected to the inner side of the second shell (2), a reeling mechanism being arranged at the top of one end of the second shell (2) away from the first shell (1), a reeling mechanism being arranged inside the first shell (1), the reeling mechanism being connected to one end of a PH test paper (5), the other end of the PH test paper (5) being connected to the reeling mechanism, the PH test paper (5) bypassing the elastic body (4) and contacting the lower end surface of the elastic body (4), the first shell (1) located at the upper side being hinged to the first shell (1) located at the lower side, and the hinge points of the two first shells (1) being away from the second shell (2); The winding mechanism comprises a second rotating shaft (6) rotatably connected to the first shell (1), a side wall of the second rotating shaft (6) is provided with a paper jam groove (601), one end of the second rotating shaft (6) is fixedly connected to a one-way rotating disk (602), a hollow gear (604) is rotatably sleeved on the outer side of the one-way rotating disk (602), a sliding one-way disk (603) is slidably connected inside the hollow gear (604), one end of the sliding one-way disk (603) is in conflict with the one-way rotating disk (602), and the A second spring (605) is fixedly connected between the other end of the sliding one-way disc (603) and the hollow gear (604); the surfaces of the sliding one-way disc (603) and the one-way rotating disc (602) facing each other are provided with helical teeth with opposite inclination directions along the circumferential direction; the hollow gear (604) and the sliding one-way disc (603) are matched with each other through a spline; a driving part is meshed with the hollow gear (604); and a one-way damper is fixedly connected between the rotating shaft of the hollow gear (604) and the first housing (1); The driving part comprises a sliding rack (8) slidably connected in the first housing (1), the sliding direction of the sliding rack (8) being perpendicular to the second rotating shaft (6), a gap being provided between the lower end of the sliding rack (8) located at the top and the top of the hollow gear (604) located at the bottom, and a gap being provided between the upper end of the sliding rack (8) located at the bottom and the bottom of the hollow gear (604) located at the top; The unwinding mechanism comprises a third shell (3) hinged on the top of the second shell (2), a first rotating shaft (301) is rotatably connected inside the third shell (3), a damper is fixedly connected between the first rotating shaft (301) and the third shell (3), and a pH test paper roller is sleeved on the first rotating shaft (301); The top of the first shell (1) is hingedly connected to a cover body (101), the bottom of the cover body (101) is sequentially fixedly connected to a plurality of vertical rods (103), the inner side of the bottom of the first shell (1) is laterally fixedly connected to a cross rod (102), the top of the cross rod (102) is fixedly connected to a plurality of protrusions, the vertical rod (103) corresponds to the position of the protrusions, the second rotating shaft (6) and the hollow gear (604) are rotatably connected between the vertical rod (103) and the protrusions, and the sliding direction of the sliding rack (8) is perpendicular to the cross rod (102); The cross bar (102) is provided with a sliding groove, the sliding rack (8) is slidably arranged in the sliding groove, and the sliding rack (8) is fixedly connected to a side wall of one end of the sliding groove by a first spring (104).

2. A portable and simple hand-held infusion bag leak detector according to claim 1, characterized in that: The second housing (2) has two ends fixedly connected thereto with a first telescopic rod (7) and a second telescopic rod (9), one end of the first telescopic rod (7) away from the second housing (2) is rotatably connected to a first roller (701), and the end of the second telescopic rod (9) away from the second housing (2) is rotatably connected to a second roller (901), and the pH test paper (5) is in contact with the first roller (701) and the second roller (901).

3. The portable, simple hand-held infusion bag leak detector according to claim 1 is characterized in that: The bottom side wall of the third shell (3) away from the first shell (1) is provided with an opening, and a third roller (10) is rotatably connected to one end of the top of the second shell (2), and the pH test paper (5) passes through the opening and contacts the third roller (10).

4. The portable, simple hand-held infusion bag leak detector according to claim 1, characterized in that: A thumb ring is fixedly connected to the outer side wall opposite to the second shell (2).

5. The portable, simple hand-held infusion bag leak detector according to claim 1, characterized in that: The elastic body (4) is a high-elasticity sponge.

Images