A test strip connector for a blood glucose meter

Abstract

The utility model relates to medical detection instrument technical field especially relates to a test strip connector for blood glucose meter, including casing and install in casing a plurality of terminal, the casing is provided with the plug interface, with the plug cavity that communicates with the plug interface, with the plug cavity that communicates and be used for the several rows of insertion slot of terminal, the insertion slot distributes in the top and the bottom of plug cavity, to make the terminal form layered structure, every terminal includes the contact part that is used for with test strip connection and is inserted into the plug cavity, the connecting part that is used for with circuit board connection and is stretched out of casing, the contact part of adjacent layer terminal is set up interval before and after. The application is through setting up the plug interface, plug cavity and insertion slot that communicate with each other on the casing, installs the terminal in the insertion slot, the terminal forms layered structure, the contact part of every two terminals of each layer is set up interval before and after, the conductive position of test strip also is distributed in row interval before and after, has increased the quantity of the conductive position on test strip, also can avoid the mutual interference of terminal, satisfies the demand of connector miniaturization and functionalization.

Description

Technical Field

[0001] This utility model relates to the field of medical testing instrument technology, and in particular to a connector for a blood glucose meter test strip. Background Technology

[0002] A blood glucose meter is an instrument that detects blood glucose levels in the human body. It uses an electrochemical method, employing the principle of detecting the current signal generated during the reaction process to indicate blood glucose levels. Electrons generated by the reaction of enzymes with glucose are counted by a current counting device, and the number of electrons is then converted into a glucose concentration reading. Generally, to test blood glucose concentration, blood is first drawn using a test strip or test piece. After blood is drawn, the test strip or test piece is inserted into the blood glucose meter. After the test is completed, the blood glucose value is read, and then the test strip is removed and retrieved.

[0003] A connector typically includes an insulating housing, a mating cavity disposed within the insulating housing, and multiple terminals disposed within the mating cavity. The multiple terminals are usually evenly spaced within the mating cavity, and the test strip is electrically connected to the terminals after insertion.

[0004] Currently, with the increasing requirements for testing functions, the number of contacts between test strips and terminals is also increasing. Therefore, if multiple terminals are arranged too closely, the conductive positions on the test strip will be too dense, which will increase the printing difficulty and make it easy for mutual interference to occur. If multiple terminals are arranged too far apart, the space utilization rate will be low, which will undoubtedly increase the volume of the insulating shell, making it impossible to meet the development needs of connectors. Utility Model Content

[0005] The purpose of this utility model is to provide a test strip connector for blood glucose meters. In view of the shortcomings of the existing technology, it aims to solve the technical problems that the number of contacts between the terminals and the test strip of the existing connectors is increasing, the terminals are arranged too densely or too loosely, which can easily cause mutual interference or the size is too large, thus failing to meet the development needs.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a test strip connector for a blood glucose meter, comprising a housing and a plurality of terminals mounted on the housing. The housing is provided with an interface, a plug cavity communicating with the interface, and a plurality of rows of slots communicating with the plug cavity and used for plugging the terminals. The slots are distributed above and below the plug cavity to form a layered structure of the terminals. Each terminal includes a contact part extending into the plug cavity for connecting with the test strip and a connection part extending out of the housing for connecting with the circuit board. The contact parts of adjacent layers of terminals are spaced apart.

[0007] Furthermore, a number of terminals form a first terminal block and a second terminal block located above the insertion cavity, and a third terminal block located below the insertion cavity. The first terminal block and the second terminal block are arranged in the same direction and are both opposite to the third terminal block.

[0008] Furthermore, the contact portions of the first terminal block and the second terminal block are spaced apart.

[0009] Furthermore, both the second and third terminal blocks are composed of terminals arranged in an alternating pattern of long and short lengths.

[0010] Furthermore, the connection is fixed in two ways: fitting or insertion.

[0011] Furthermore, the terminal also includes an elastic part connected to the contact part and a fixing part connected to the elastic part. The front end of the lower slot extends downward through the housing to provide space for the elastic part to extend and retract vertically. The fixing part is accommodated and fixed in the slot.

[0012] Furthermore, the housing includes a front section, a middle section, and a rear section connected in sequence. The middle section has two symmetrically distributed receiving holes along its width. A pusher is installed in the receiving hole. The pusher is located on the bottom surface of the middle section and moves back and forth to push out the test strip.

[0013] Furthermore, the middle section is covered with a U-shaped outer shell, which is provided with an installation groove, a limiting groove and a welding foot extending downward. The two sides of the middle section are provided with a locking block and a limiting strip, with the locking block embedded in the installation groove and the limiting strip embedded in the limiting groove.

[0014] Furthermore, a window communicating with the slot is provided on the top surface of the middle section, and an observation hole for observing the terminal is provided at the corresponding window on the outer casing.

[0015] Furthermore, the pusher includes a U-shaped guide block embedded in the receiving hole, a pusher block disposed inside the guide block, and a handle disposed outside the guide block. The bottom surface of the middle section is provided with a sliding groove that communicates with the insertion cavity, and the pusher block extends into the sliding groove to abut against the test strip.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: This utility model provides a connected insertion interface and insertion cavity on the housing, and several rows of connected slots are provided above and below the insertion cavity. Terminals are installed in the slots, so that the terminals form a layered structure. The test strip has corresponding conductive positions printed on both sides. At the same time, the contact parts of two adjacent terminals in each layer are arranged back and forth at intervals, so that the conductive positions of the terminals on one side of the test strip are also arranged back and forth at intervals. The terminal arrangement structure is more compact, and the number of rows of conductive positions on the test strip is increased. It can also avoid mutual interference between terminals, make great use of the space inside the housing, and meet the needs of connector miniaturization and functionality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of the present invention in application; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 This is one of the structural schematic diagrams of the shell in this utility model; Figure 4 This is the second schematic diagram of the shell structure in this utility model; Figure 5 This is a schematic diagram of the structure of a terminal in this utility model; Figure 6 This is a schematic diagram of the layered structure formed by the terminals in this utility model; Figure 7 This is a schematic diagram of the structure of the pusher component in this utility model; Figure 8 This is a schematic diagram of the outer shell structure in this utility model; Figure 9 This is a schematic diagram of the circuit board structure in this utility model.

[0019] The details of the reference numerals used in the above figures are as follows: 1-Housing, 11-Front section, 12-Middle section, 121-Accommodation hole, 122-Card block, 123-Limiting strip, 124-Window, 125-Slide groove, 13-Rear section, 14-Insertion interface, 15-Insertion cavity, 16-Slot; 2-Terminal, 21-Contact portion, 22-Elastic portion, 23-Fixing portion, 24-Connecting portion; 3-First terminal block, 4-Second terminal block, 5-Third terminal block; 6-Pushing component, 61-Guide block, 62-Pushing block, 63-Handle; 7-Outer shell, 71-Mounting groove, 72-Limiting groove, 73-Welding foot, 74-Observation hole; 8-Circuit board, 81-Positioning hole, 82-Insertion hole, 83-Sliding hole; 9-Test strip. Detailed Implementation

[0020] In the description of this application, the term "several" refers to two or more (including two). Technical terms such as "first," "second," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary / secondary relationship of the indicated technical features. Terms such as "installation," "connection," and "linking" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] In the description of this application, the technical terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0022] In order to better understand the above-mentioned objectives, technical solutions and advantages of this application, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings, and to understand in detail how to solve the problems raised in the background art.

[0023] like Figures 1 to 9 As shown, a blood glucose meter test strip connector includes a housing 1 and a plurality of terminals 2 mounted on the housing 1. The housing 1 is provided with an interface 14, an insertion cavity 15 communicating with the interface 14, and a plurality of rows of slots 16 communicating with the insertion cavity 15 and used for inserting the terminals 2. The slots 16 are distributed above and below the insertion cavity 15 so that the terminals 2 form a layered structure. Each terminal 2 includes a contact portion 21 extending into the insertion cavity 15 for connecting with a test strip 9, and a connecting portion 24 extending out of the housing 1 for connecting with a circuit board 8. The contact portions 21 of adjacent layers of terminals 2 are spaced apart.

[0024] With the above scheme, the housing 1 is provided with a connected insertion interface 14 and a insertion cavity 15. Several rows of connected slots 16 are provided above and below the insertion cavity 15. Terminals 2 are installed in the slots 16, so that the terminals 2 form a layered structure. The test strip 9 has corresponding double-sided printed conductive positions. At the same time, the contact parts 21 of two adjacent terminals 2 in each layer are arranged back and forth at intervals, so that the conductive positions of the test strip 9 on one side corresponding to the layer of terminals 2 are also arranged back and forth at intervals. The arrangement structure of the terminals 2 is more compact, and the number of rows of conductive positions on the test strip 9 is increased. It can also avoid mutual interference between terminals 2, making great use of the space inside the housing 1 and meeting the needs of connector miniaturization and functionality.

[0025] In this embodiment, the housing 1 is made of plastic, and the terminals 2 are made of metal. The terminals 2 are distributed above and below the insertion cavity 15. The test strip 9 has conductive positions printed on both sides that abut against the contact part 21. A circuit board 8 is provided under the housing 1. The circuit board 8 is provided with positioning holes 81 and welding parts. Correspondingly, a positioning post is provided on the bottom surface of the housing 1. The positioning post is inserted into the positioning hole 81 to realize the quick and accurate installation of the housing 1 and the circuit board 8. At the same time, it can assist the terminals 2 to be inserted into the slot 16, and the connecting part 24 can be accurately attached to the welding part. By welding, a stable and firm electrical connection between the terminals 2 and the circuit board 8 can be realized. In use, the test strip 9 enters from the insertion interface 14 and is embedded in the insertion cavity 15. The test strip 9 abuts against the terminal 2. After the test is completed, the test strip 9 can be pulled out and collected for recycling.

[0026] like Figures 2 to 6 As shown, in one specific embodiment of the improvement, a plurality of terminals 2 form a first terminal block 3 and a second terminal block 4 located above the insertion cavity 15, and a third terminal block 5 located below the insertion cavity 15. The first terminal block 3 and the second terminal block 4 are arranged in the same direction and are both opposite to the third terminal block 5.

[0027] Specifically, both terminals 2 and slots 16 are provided in three rows, and their structures are compatible. The two rows of slots 16 above the insertion cavity 15 are vertically aligned and connected, and extend from the rear section 13 to the middle section 12. The slots 16 below the insertion cavity 15 extend from the front section 11 to the middle section 12, so that the slots 16 and the insertion cavity 15 are connected, thus forming a relatively arranged structure. This facilitates the rapid installation of terminals 2 and makes full use of the internal space of the housing 1, so that the layout of several terminals 2 is more reasonable. It is worth noting that the front end of each contact part 21 in the first terminal row 3 and the second terminal row 4 is bent upward, while the front end of each contact part 21 in the third terminal row 5 is bent downward, and the contact part 21 extends into the insertion cavity 15 to ensure the connection between the terminal 2 and the test strip 9, and to clamp the test strip 9 vertically to prevent the test strip 9 from loosening or shifting during the test.

[0028] like Figure 5 and Figure 6 As shown, in one specific embodiment of the improvement, the contact portions 21 of the first terminal block 3 and the second terminal block 4 are spaced apart.

[0029] Specifically, based on the corresponding vertical arrangement of the first terminal block 3 and the second terminal block 4, and with the contact portions 21 both extending into the insertion cavity 15, the length of the fixing portion 23 in the first terminal block 3 is greater than the length of the fixing portion 23 in the second terminal block 4. This results in the contact portions 21 in the first terminal block 3 being closer to the insertion interface 14, forming a structure where the contact portions 21 are spaced apart front to back. This creates two rows of conductive contacts spaced apart on the top surface of the test strip 9, preventing mutual interference between the terminals 2 during testing and increasing the number of contacts between the terminals 2 and the test strip 9. Furthermore, since several terminals 2 form... With a three-tiered structure of upper, middle and lower rows, the number of terminals 2 in each row can be set according to actual production needs. For example, in this embodiment, the first terminal block 3 consists of 4 terminals 2, and the second terminal block 4 and the third terminal block 5 each consist of 7 terminals 2. However, it is necessary to ensure that the width of the fixing part 23 in the first terminal block 3 is greater than the width of the fixing part 23 in the second terminal block 4 to avoid the layered terminals 2 from affecting each other's installation. It is also possible to insert an additional terminal 2 of the first terminal block 3 below the two adjacent terminals 2 in the second terminal block 4, thereby reasonably increasing the number of terminals 2.

[0030] like Figure 5 and Figure 6 As shown, in one specific embodiment of the improvement, the second terminal block 4 and the third terminal block 5 are both composed of terminals 2 arranged in an alternating pattern of long and short lengths.

[0031] Specifically, the first terminal block 3, the second terminal block 4, and the third terminal block 5 are each composed of three types of terminals 2. In the second terminal block 4 and the third terminal block 5, the terminals 2 have different lengths. One type has a longer fixing part 23, and the other type has a shorter fixing part 23. In both cases, a longer terminal 2 is designed between two shorter terminals 2, so that the contact parts 21 of adjacent terminals 2 are distributed back and forth. Therefore, the top and bottom surfaces of the test strip 9 are designed with three rows and two rows of spaced conductive positions, respectively. Generally, the area of ​​a single conductive position on the test strip 9 is larger than the area of ​​the contact part 21. Therefore, while ensuring that the terminals 2 are evenly and compactly distributed, mutual interference during testing can be further avoided.

[0032] like Figure 6 As shown, as one specific embodiment of the improvement, the fixing method of the connecting part 24 is either a fitting type or a direct insertion type.

[0033] Specifically, the connecting part 24 is bent downward relative to the fixing part 23. In the second terminal block 4 and the third terminal block 5, the connecting part 24 is L-shaped, and in the first terminal block 3, the connecting part 24 of the terminal 2 is straight. Correspondingly, the welding parts on the circuit board 8 are the welding area and the welding hole. The connecting part 24 is welded and fixed to the circuit board 8 in a fitting manner, which can limit the vertical movement of the housing 1 during installation. The connecting part 24 is welded and fixed to the circuit board 8 in a plug-in manner, which can limit the horizontal movement of the housing 1 during installation, thereby improving the stability and firmness between the housing 1 and the circuit board 8.

[0034] like Figures 2 to 5 As shown, in one specific embodiment of the improvement, the terminal 2 further includes an elastic part 22 connected to the contact part 21 and a fixing part 23 connected to the elastic part 22. The front end of the lower slot 16 extends downward through the housing 1 to provide space for the elastic part 22 to extend and retract vertically. The fixing part 23 is accommodated and fixed in the slot 16.

[0035] Specifically, the contact part 21 and the elastic part 22 are both located at the front end of the slot 16. After the front end of the slot 16 penetrates the housing 1, the installation status of the terminal 2 can be observed. Furthermore, the elastic parts 22 of the terminal 2 in the first terminal block 3, the second terminal block 4, and the third terminal block 5 are all inclined relative to the fixing part 23 and face the insertion cavity 15, thereby ensuring that the elastic parts 22 of the terminal 2 above the insertion cavity 15 can extend and retract vertically. The structure of the fixing part 23 and the rear end of the slot 16 are compatible, ensuring the firmness of the terminal 2 installation.

[0036] like Figures 2 to 4 , Figure 7 As shown, in one specific embodiment of the improvement, the housing 1 includes a front section 11, a middle section 12 and a rear section 13 connected in sequence. The middle section 12 is provided with two symmetrically distributed receiving holes 121 along the width direction. A pusher 6 is installed in the receiving hole 121. The pusher 6 is disposed on the bottom surface of the middle section 12 and moves back and forth to push out the test strip 9.

[0037] Specifically, a groove is provided at the bottom of the middle section 12, which connects two receiving holes 121. The pusher 6 is embedded in the groove and inserted into the receiving hole 121, so that the pusher 6 is clamped on the inner wall of the receiving hole 121, thereby being able to move back and forth along the receiving hole 121. When in use, after the test strip 9 has finished testing, the test strip 9 can be pushed out of the housing 1 by pushing the pusher 6, which reduces the chance of medical personnel or users coming into contact with the test strip 9, thereby reducing the risk of infection during use and improving the convenience and safety of the connector.

[0038] like Figures 2 to 4 , Figure 7 and Figure 9As shown, in one specific embodiment of the improvement, the pusher 6 includes a U-shaped guide block 61 embedded in the receiving hole 121, a pusher block 62 disposed inside the guide block 61, and a handle 63 disposed outside the guide block 61. The bottom surface of the middle section 12 is provided with a sliding groove 125 that communicates with the insertion cavity 15. The pusher block 62 extends into the sliding groove 125 and abuts against the test strip 9.

[0039] Specifically, the guide block 61 has inwardly extending clamping blocks at both ends, and the middle section 12 has outwardly protruding slide bars on the inner wall of the receiving hole 121. After the guide block 61 is inserted into the receiving hole 121, the clamping blocks and slide bars abut against each other. There are two slide grooves 125 distributed at the bottom of the middle section 12 and placed between the two receiving holes 121. There are two push blocks 62 symmetrically distributed. The circuit board 8 has a sliding hole 83. After the pusher 6 is installed into the housing 1, the two push blocks 62 are inserted into the slide groove 125 and abut against the left and right sides of the front end of the test strip 9. The handle 63 passes through the sliding hole 83 and extends downward. After the test strip 9 has completed the test, the handle 63 can be pushed forward gently to push out the test strip 9, which can ensure that the test strip 9 is evenly stressed and pushed out smoothly. After the test strip 9 is pushed out, the handle 63 can be pushed backward to reset.

[0040] like Figures 2 to 4 , Figure 8 and Figure 9 As shown, in one specific embodiment of the improvement, the middle section 12 is covered with a U-shaped outer shell 7. The outer shell 7 is provided with a mounting groove 71, a limiting groove 72 and a welding foot 73 extending downward. The two sides of the middle section 12 are provided with a locking block 122 and a limiting strip 123. The locking block 122 is embedded in the mounting groove 71 and the limiting strip 123 is embedded in the limiting groove 72.

[0041] Specifically, the outer shell 7 is made of metal. The outer surface of the middle section 12 is provided with an annular groove corresponding to the outer shell 7. The outer shell 7 is covered in the annular groove to ensure compact installation and enhance the connector's anti-collision and anti-vibration capabilities. The mounting groove 71 and the limiting groove 72 are provided on both sides of the outer shell 7. The soldering feet 73 are provided on the lower ends of both sides of the outer shell 7 and extend downward. Correspondingly, the locking block 122 and the limiting strip 123 are provided on both sides of the middle section 12. The locking block 122 is adapted to the mounting groove 71, and the limiting strip 123 is adapted to the limiting groove 72. The circuit board 8 is provided with the insertion hole 82 corresponding to the soldering feet 73. During installation, the outer shell 7 is first installed and fixed on the housing 1. Then, the housing 1 is placed on top of the circuit board 8 through the positioning post and positioning hole 81. At this time, the soldering feet 73 are also inserted into the insertion hole 82 and soldered to fix them, further assisting the accuracy of the connection between the terminal 2 and the circuit board 8, and improving the stability and firmness of the installation between the housing 1 and the circuit board 8.

[0042] like Figure 1 , Figure 3 and Figure 8As shown, in one specific embodiment of the improvement, the top surface of the middle section 12 is provided with a window 124 that communicates with the slot 16, and the outer casing 7 is provided with an observation hole 74 for observing the terminal 2 at the corresponding window 124.

[0043] Specifically, window 124 is connected to slot 16 above the insertion cavity 15. After the upper terminal 2 is installed, the installation status of the upper terminal 2 can be observed through observation hole 74 and window 124, which is convenient for detecting whether the terminal 2 is deformed or missing in the housing 1. At the same time, it can also understand the elastic deformation state of the terminal 2 during the test and whether there is any jamming or other phenomena.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A test strip connector for a blood glucose meter, comprising a housing (1) and a plurality of terminals (2) mounted on the housing (1), characterized in that, The housing (1) is provided with an interface (14), an insertion cavity (15) communicating with the interface (14), and a plurality of slots (16) communicating with the insertion cavity (15) and used for inserting the terminal (2). The slots (16) are distributed above and below the insertion cavity (15) so that the terminal (2) forms a layered structure. Each terminal (2) includes a contact part (21) extending into the insertion cavity (15) and used for connecting with the test strip (9), and a connecting part (24) extending out of the housing (1) and used for connecting with the circuit board (8). The contact parts (21) of adjacent layers of terminals (2) are spaced apart.

2. The blood glucose meter test strip connector according to claim 1, characterized in that, A plurality of terminals (2) form a first terminal block (3) and a second terminal block (4) located above the plug cavity (15), and a third terminal block (5) located below the plug cavity (15). The first terminal block (3) and the second terminal block (4) are arranged in the same direction and are both opposite to the third terminal block (5).

3. A test strip connector for a blood glucose meter according to claim 2, characterized in that, The contact portions (21) of the first terminal block (3) and the second terminal block (4) are spaced apart.

4. A test strip connector for a blood glucose meter according to claim 2, characterized in that, The second terminal block (4) and the third terminal block (5) are both composed of terminals (2) arranged in an alternating pattern of long and short lengths.

5. A test strip connector for a blood glucose meter according to claim 1, characterized in that, The fixing method of the connecting part (24) is either fitting or insertion.

6. A test strip connector for a blood glucose meter according to claim 1, characterized in that, The terminal (2) also includes an elastic part (22) connected to the contact part (21) and a fixing part (23) connected to the elastic part (22). The front end of the lower slot (16) extends downward through the housing (1) to provide space for the elastic part (22) to extend and retract vertically. The fixing part (23) is accommodated and fixed in the slot (16).

7. A test strip connector for a blood glucose meter according to claim 1, characterized in that, The housing (1) includes a front section (11), a middle section (12) and a rear section (13) connected in sequence. The middle section (12) has two symmetrically distributed receiving holes (121) along the width direction. A pusher (6) is installed in the receiving hole (121). The pusher (6) is located on the bottom surface of the middle section (12) and moves back and forth to push out the test strip (9).

8. A test strip connector for a blood glucose meter according to claim 7, characterized in that, The middle section (12) is covered by a U-shaped outer shell (7). The outer shell (7) is provided with an installation groove (71), a limiting groove (72), and a welding foot (73) extending downward. The two sides of the middle section (12) are provided with a locking block (122) and a limiting strip (123). The locking block (122) is embedded in the installation groove (71), and the limiting strip (123) is embedded in the limiting groove (72).

9. A test strip connector for a blood glucose meter according to claim 8, characterized in that, The top surface of the middle section (12) is provided with a window (124) that communicates with the slot (16), and the outer shell (7) is provided with an observation hole (74) for observing the terminal (2) at the window (124).

10. A test strip connector for a blood glucose meter according to claim 7, characterized in that, The pusher (6) includes a U-shaped guide block (61) embedded in the receiving hole (121), a push block (62) disposed inside the guide block (61), and a handle (63) disposed outside the guide block (61). The bottom surface of the middle section (12) is provided with a sliding groove (125) communicating with the insertion cavity (15). The push block (62) extends into the sliding groove (125) and abuts against the test strip (9).

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