Fixing device of intrusive biosensor assembly

Abstract

The utility model provides a fixing device for an intrusive biosensor component, which comprises a sleeve clamping seat provided with a bearing column and a fixing piece. The bearing column is clamped to the upper surface of the fixing piece. The two sides of the upper portion of the bearing column extend upwards to form two bayonet arms, the two bayonet arms are oppositely arranged, and each bayonet arm is provided with a bayonet. The two sides of the upper portion of the bearing column extend upwards to form two clamping groove arms, the two clamping groove arms are oppositely arranged, and each clamping groove arm is provided with a clamping groove. The two bayonet arms and the two clamping groove arms are respectively arranged at intervals; the two bayonet arms and the two clamping groove arms are arranged on the upper surface of the bearing column in a circumferential array mode. The connecting line of the two bayonet arms forms an angle of 180 degrees, the connecting line of the two clamping groove arms forms an angle of 180 degrees, and the bayonet arms and the adjacent clamping groove arms form an angle of 90 degrees; the bayonet arm and the clamping groove arm are circumferentially arranged on the upper surface of the bearing column, the electrode sealing sleeve is better fixed, the bearing column is clamped with the electrode sealing sleeve, the overall leakproofness of the biosensor assembly is improved, and the product reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biosensors, in particular to a fixing device for an invasive biosensor assembly. Background Art

[0002] For the diabetic population, traditional fingertip blood glucose meters have the disadvantages of being invasive, having limited information, being unable to reflect blood glucose fluctuations and give warnings, etc., and can no longer meet the needs of some people. It is particularly significant for type 1 diabetic patients who require real-time transmission of blood glucose fluctuations and type 2 diabetic patients who need intensive insulin treatment.

[0003] Due to the need for continuous blood glucose monitoring, an integrated implant assembly of an invasive biosensor is required to implant the sensor into the subcutaneous tissue of the human body, and measuring the blood glucose concentration between tissue fluids is a continuous monitoring method available in reality.

[0004] When the invasive biosensor assembly is completed in the factory, the invasive biosensor assembly is stored in a main housing composed of an upper housing and a lower housing. The lower housing is used to fix the lower part of the invasive biosensor assembly, and the upper housing is used to fix the upper part of the invasive biosensor assembly; usually, a card seat assembly for fixing the invasive biosensor assembly is separately provided, and the invasive biosensor assembly is fixed through a fixing device and connected to the lower housing at the same time, so that when the lower housing rotates, the sealing sleeve of the fixing device is separated from the invasive biosensor assembly, thereby completing the preparation before implantation of the invasive biosensor assembly. The above solutions have the following problems: the fixing effect of the fixing device on the invasive biosensor assembly is low, resulting in a risk of the invasive biosensor assembly falling off or being improperly assembled. Therefore, how to improve the fixing effect of the fixing device on the invasive biosensor assembly has become an urgent problem to be solved. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to solve the problem of how to improve the fixing effect of the fixing device on the invasive biosensor assembly, and provide a fixing device for an invasive biosensor assembly.

[0006] The utility model provides the following technical solutions:

[0007] A fixing device for an invasive biosensor assembly includes a sleeve card seat, and the sleeve card seat is provided with a bearing column and a fixing piece; the bearing column is clamped on the upper surface of the fixing piece;

[0008] Two bayonet arms protrude upward from both sides of the upper part of the bearing column, the two bayonet arms are oppositely arranged, and each bayonet arm is provided with a bayonet;

[0009] On both upper sides of the bearing column, two card slot arms protrude upward. The two card slot arms are arranged oppositely, and each card slot arm is provided with a card slot.

[0010] The two bayonet arms and the two card slot arms are arranged at intervals respectively.

[0011] Preferably, the two bayonet arms and the two card slot arms are arranged in a circular array on the upper surface of the bearing column; the connection line of the two bayonet arms forms an angle of 180 degrees, the connection line of the two card slot arms forms an angle of 180 degrees, and the bayonet arm and the adjacent card slot arm form an angle of 90 degrees.

[0012] Preferably, a first edge chamfer is provided on the upper surface of each of the two bayonet arms. The two first edge chamfers are respectively arranged on the opposite edges of the two bayonet arms, and the two first edge chamfers are arranged oppositely.

[0013] Preferably, a second edge chamfer and two third edge chamfers are respectively provided at the notch of the two card slots, and the notches of the two card slots are arranged in a U shape;

[0014] The two second edge chamfers are respectively arranged on the bottom edge of the notch of the two card slots, and the two second edge chamfers are arranged oppositely;

[0015] The four third edge chamfers are respectively arranged in pairs on the wall edges of the notch of the two card slots, and the two third edge chamfers located in the same card slot are arranged oppositely.

[0016] Preferably, two fourth edge chamfers are provided on the upper surface of each of the two card slot arms. The four fourth edge chamfers are respectively arranged on the edges of the opposite sides of the two card slot arms, and the four fourth edge chamfers are arranged in pairs oppositely.

[0017] Preferably, two reinforcing rib plates are provided on the outer side of the lower part of each bayonet arm. The four reinforcing rib plates are arranged symmetrically in pairs; the lower parts of the four reinforcing rib plates are respectively clamped on the upper surface of the bearing column; the distance between the upper parts of each reinforcing rib plate and the connection line of the bayonet arms is less than the distance between the lower parts of each reinforcing rib plate and the connection line of the bayonet arms.

[0018] Preferably, two positioning bumps are provided on the outer peripheral side of the bearing column. The two positioning bumps are arranged oppositely, and the connection line of the two positioning bumps forms an angle of 180 degrees.

[0019] Preferably, the lower part of each positioning bump is respectively connected to the upper surface of the fixing piece, and the upper part of each positioning bump is respectively connected to the edge of the upper surface of the bearing column.

[0020] Preferably, a groove is provided upward at the bottom of the bearing column, and six reinforcing ribs are arranged inside the groove. The six reinforcing ribs are arranged radially with the center of the bearing column as the center. One end of the six reinforcing ribs is connected to the center of the bearing column, and the other ends of the six reinforcing ribs are respectively connected to the inner wall of the groove.

[0021] Preferably, the fixing piece is provided with six screw through holes, and the six screw through holes are arranged in a circumferential array. Each screw through hole is arranged with a narrow upper part and a wide lower part.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] (1) By arranging the bayonet arm and the clamping groove arm circumferentially on the upper surface of the bearing column, the electrode sealing sleeve of the invasive biosensor assembly can be better fixed. From the completion of factory assembly to before implant assembly, the lateral and longitudinal movement of the electrode sealing sleeve can be restricted, so that the invasive biosensor assembly can be better fixed inside the main housing of the product; during pre-implant assembly, the cooperation of the bayonet arm and the clamping groove arm can drive the electrode sealing sleeve to rotate, so that the electrode sealing sleeve is screwed out from the bottom of the invasive biosensor assembly, and the sensing electrode and the guiding needle to be implanted are exposed, so as to be subsequently implanted into the human skin.

[0024] (2) By clamping the bottom of the bearing column with the electrode sealing sleeve, the bearing column provides an upward thrust to the electrode sealing sleeve, so that the electrode sealing sleeve fits more tightly with the bottom of the invasive biosensor assembly, improving the overall tightness of the invasive biosensor assembly and enhancing the reliability and safety of the product.

[0025] (3) During pre-factory assembly, when the convex of the electrode sealing sleeve slides into the bayonet of the bayonet arm, the convex generates an outward thrust on the bayonet arm. By arranging a reinforcing rib plate at the lower part outside the bayonet arm, the reinforcing rib plate provides an inward thrust to the bayonet arm, thus making the bayonet arm more firm and improving the reliability of the product.

[0026] (4) Before implant assembly, the electrode sealing sleeve is fixed on the upper surface of the bearing column, generating a downward thrust on the bearing column. By arranging reinforcing ribs at the bottom of the bearing column, the reinforcing ribs provide an upward thrust to the bearing column, so that the electrode sealing sleeve is better fixed on the bearing column, thereby improving the tightness of the invasive biosensor assembly and enhancing the reliability of the bearing column; the bearing column is arranged as hollow, avoiding the deformation and shrinkage of the bearing column during the production and manufacturing process of the fixing device, improving the batch production efficiency and enhancing the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is one of the structural schematic diagrams of a fixing device for an invasive biosensor assembly of the present utility model;

[0028] Figure 2 It is a schematic structural diagram of a partial enlarged card slot arm of a fixing device for an invasive biosensor assembly of the present utility model;

[0029] Figure 3 It is a top view of a fixing device for an invasive biosensor assembly of the present utility model;

[0030] Figure 4 It is the second schematic structural diagram of a fixing device for an invasive biosensor assembly of the present utility model;

[0031] Figure 5 It is the first schematic structural diagram after the sleeve socket and the bottom shell of a fixing device for an invasive biosensor assembly of the present utility model are assembled;

[0032] Figure 6 It is the second schematic structural diagram after the sleeve socket and the bottom shell of a fixing device for an invasive biosensor assembly of the present utility model are assembled;

[0033] Figure 7 It is a schematic structural diagram of a sleeve socket of a fixing device for an invasive biosensor assembly of the present utility model before being assembled with the invasive biosensor assembly;

[0034] Figure 8 It is a schematic structural diagram of a sleeve socket of a fixing device for an invasive biosensor assembly of the present utility model after being assembled with the invasive biosensor assembly;

[0035] Figure 9 It is a schematic structural diagram of a sleeve socket of a fixing device for an invasive biosensor assembly of the present utility model after screwing out the electrode sealing sleeve from the bottom of the main body.

[0036] In the figure: 1 - sleeve socket; 11 - bearing post; 111 - bayonet arm; 1111 - bayonet; 1112 - first side chamfer; 112 - card slot arm; 1121 - card slot; 11211 - second side chamfer; 11212 - third side chamfer; 1122 - fourth side chamfer; 113 - reinforcing rib plate; 114 - positioning convex; 115 - reinforcing rib; 12 - fixing piece; 121 - screw through hole; 2 - electrode sealing sleeve; 3 - main body; 4 - bottom shell. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0038] An embodiment of the present utility model provides a technical solution:

[0039] A fixing device for an invasive biosensor assembly, including a sleeve socket 1, the sleeve socket 1 is provided with a bearing column 11 and a fixing piece 12; the bearing column 11 is arranged on the upper surface of the fixing piece 12;

[0040] On the upper part of the bearing column 11, two clamping arms 111 protrude upwards on both sides, the two clamping arms 111 are arranged oppositely, and each clamping arm 111 is provided with a clamping notch 1111;

[0041] On the upper part of the bearing column 11, two clamping groove arms 112 protrude upwards on both sides, the two clamping groove arms 112 are arranged oppositely, and each clamping groove arm 112 is provided with a clamping groove 1121;

[0042] The two clamping arms 111 and the two clamping groove arms 112 are respectively arranged at intervals.

[0043] In this embodiment, the two clamping arms 111 and the two clamping groove arms 112 are arranged in a circumferential array on the upper surface of the bearing column 11.

[0044] The geometric center connection line of the two clamping arms 111 in the vertical direction passes through the central axis of the bearing column 11, the geometric center connection line of the two clamping groove arms 112 in the vertical direction passes through the central axis of the bearing column 11, and the geometric center connection line of the two clamping arms 111 in the vertical direction is perpendicular to the geometric center connection line of the two clamping groove arms 112 in the vertical direction.

[0045] In this embodiment, a first edge chamfer 1112 is arranged on the inner side of the upper surface of the clamping arm 111.

[0046] In this embodiment, the notch of the clamping groove 1121 is arranged in a U shape, the notch of the clamping groove 1121 is provided with a second edge chamfer 11211 and two third edge chamfers 11212, and the two third edge chamfers 11212 and one second edge chamfer 11211 are arranged in a U shape;

[0047] The second edge chamfer 11211 is arranged on the middle edge of the inner side of the upper notch of the clamping groove 1121, the two second edge chamfers 11211 are arranged oppositely, and the two third edge chamfers 11212 are respectively arranged on both sides of the inner side of the upper notch of the clamping groove 1121.

[0048] In this embodiment, a fourth edge chamfer 1122 is respectively arranged on the upper outer edges of the two side arms in the notch direction of the clamping groove arm 112. The four fourth edge chamfers 1122 are respectively arranged on the edges of the opposite sides of the two clamping groove arms 112, and the four fourth edge chamfers 1122 are arranged in pairs oppositely.

[0049] In this embodiment, two reinforcing rib plates 113 are provided between the outer side of the lower part of the bayonet arm 111 and the bearing platform 12, and the two reinforcing rib plates 113 are symmetrically arranged in pairs; the distances between the upper parts of the reinforcing rib plates 113 and the bayonet arm 111 are less than the distances between the lower parts of the reinforcing rib plates 113 and the bayonet arm 111 respectively.

[0050] In this embodiment, two positioning convexes 114 are provided on the outer peripheral side of the bearing column 11. The two positioning convexes 114 are arranged oppositely, and the central axis connection line of the two positioning convexes 114 in the vertical direction passes through the geometric center of the bearing column 11.

[0051] In this embodiment, the lower end surface of the positioning convex 114 is arranged on the upper surface of the fixing piece 12. The side parts of each positioning convex 114 are respectively connected to the side surface of the bearing column 11, and the upper end surface of the positioning convex 114 is flush with the upper surface of the bearing column 11.

[0052] In this embodiment, a section of the lower part of the fixing piece 12 and the bearing column 11 is hollow, and more than two reinforcing ribs 115 passing through the hollow geometric axis are arranged in the hollow part.

[0053] The reinforcing ribs can possibly act as a wrench. The six reinforcing ribs 115 are arranged in a radial pattern with the center of the bearing column 11 as the center. One end of the six reinforcing ribs 115 is connected to the center of the bearing column 11, and the other ends of the six reinforcing ribs 115 are respectively connected to the inner wall of the groove.

[0054] In this embodiment, the fixing piece 12 is provided with more than three screw holes 121. The multiple screw holes 121 are arranged in a circular array, and each screw hole 121 is arranged with a narrower upper part and a wider lower part.

[0055] By arranging the bayonet arm 111 and the slot arm 112 in a circular pattern on the upper surface of the bearing column 11, the electrode sealing sleeve 2 of the invasive biosensor assembly can be better fixed. From the completion of factory assembly to before implantation assembly, the lateral and longitudinal movement of the electrode sealing sleeve 2 can be restricted, so that the invasive biosensor assembly can be better fixed inside the main housing of the product; during pre-implantation assembly, the cooperation of the bayonet arm 111 and the slot arm 112 can drive the electrode sealing sleeve 2 to rotate, so that the electrode sealing sleeve 2 is screwed out from the bottom of the invasive biosensor assembly, and the sensing electrode and the guiding needle to be implanted are exposed, so as to be subsequently implanted into the human skin.

[0056] By clamping the bottom of the bearing column 11 with the electrode sealing sleeve 2, the bearing column 11 provides an upward thrust to the electrode sealing sleeve 2, so that the electrode sealing sleeve 2 fits more tightly with the bottom of the invasive biosensor assembly, improving the overall airtightness of the invasive biosensor assembly and enhancing the reliability and safety of the product.

[0057] During pre - factory assembly, when the clamping protrusion of the electrode sealing sleeve 2 slides into the bayonet 1111 of the bayonet arm 111, the clamping protrusion generates an outward thrust on the bayonet arm 111. By arranging a reinforcing rib plate 113 at the lower part outside the bayonet arm 111, the reinforcing rib plate 113 provides an inward thrust on the bayonet arm 111, thus making the bayonet arm 111 more firm and improving the reliability of the product.

[0058] Before implant assembly, the electrode sealing sleeve 2 is fixed on the upper surface of the bearing column 11, generating a downward thrust on the bearing column 11. By arranging a reinforcing rib 115 at the bottom of the bearing column 11, the reinforcing rib 115 provides an upward thrust for the bearing column 11, so that the electrode sealing sleeve 2 is better fixed on the bearing column 11, thus improving the tightness of the invasive biosensor assembly and the reliability of the bearing column 11; the bearing column 11 is set to be hollow to avoid the deformation and shrinkage of the bearing column 11 during the production and manufacturing of the fixing device, improving the batch production efficiency and the reliability of the product.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for an invasive biosensor assembly, comprising a sleeve socket (1), characterized in that, The sleeve socket (1) is provided with a bearing post (11) and a fixing piece (12); the bearing post (11) is arranged on the upper surface of the fixing piece (12); On both sides of the upper part of the bearing post (11), two bayonet arms (111) protrude upwards, the two bayonet arms (111) are arranged oppositely, and each bayonet arm (111) is provided with a bayonet (1111); On both sides of the upper part of the bearing post (11), two clamping groove arms (112) protrude upwards, the two clamping groove arms (112) are arranged oppositely, and each clamping groove arm (112) is provided with a clamping groove (1121); The two bayonet arms (111) and the two clamping groove arms (112) are respectively arranged at intervals.

2. The fixing device of the invasive biosensor assembly according to claim 1, characterized in that The two bayonet arms (111) and the two clamping groove arms (112) are arranged in a circumferential array on the upper surface of the bearing post (11).

3. The fixing device of the invasive biosensor assembly according to claim 2, characterized in that, On the inner side of the upper surface of the bayonet arm (111), a first side chamfer (1112) is provided.

4. The fixing device of the invasive biosensor assembly according to claim 3, characterized in that, The notch of the clamping groove (1121) is arranged in a U shape, the notch of the clamping groove (1121) is provided with a second side chamfer (11211) and two third side chamfers (11212), and the two third side chamfers (11212) and a second side chamfer (11211) are arranged in a U shape; The second side chamfer (11211) is arranged on the middle side of the inner side of the upper notch of the clamping groove (1121), and the two third side chamfers (11212) are respectively arranged on both sides of the inner side of the upper notch of the clamping groove (1121).

5. The fixing device of the invasive biosensor assembly according to claim 4, characterized in that, On the outer sides of the two side arms in the notch direction of the clamping groove arm (112), a fourth side chamfer (1122) is respectively provided; the four fourth side chamfers (1122) are respectively arranged on the edges of one side of the two clamping groove arms (112) opposite to each other, and the four fourth side chamfers (1122) are arranged in pairs opposite to each other.

6. The fixing device of the invasive biosensor assembly according to claim 5, characterized in that, Between the outer sides of the lower parts of the bayonet arms (111) and the bearing post (11), two reinforcing rib plates (113) are provided; the distances from the upper parts of the reinforcing rib plates (113) to the connecting lines of the bayonet arms (111) are smaller than the distances from the lower parts of the reinforcing rib plates (113) to the connecting lines of the bayonet arms (111).

7. The fixing device of the invasive biosensor assembly according to claim 6, wherein, On the outer peripheral side of the bearing post (11), two positioning convexes (114) are provided, the two positioning convexes (114) are arranged oppositely, and the connecting line of the central axes in the vertical direction of the two positioning convexes (114) passes through the geometric center of the bearing post (11).

8. The fixing device of the invasive biosensor assembly according to claim 7, characterized in that, The lower end surface of the positioning convex (114) is arranged on the upper surface of the fixing piece (12), the side parts of each positioning convex (114) are respectively connected to the side surface of the bearing post (11), and the upper end surface of the positioning convex (114) is flush with the upper surface of the bearing post (11).

9. The fixing device of the invasive biosensor assembly according to claim 8, characterized in that, A section of the lower part of the fixing piece (12) and the bearing post (11) is hollow, and more than two reinforcing ribs (115) passing through the geometric axis of the hollow are arranged in the hollow part.

10. The fixing device of the invasive biosensor assembly according to claim 9, characterized in that, The fixing piece (12) is provided with more than three screw holes (121), and the plurality of screw holes (121) are arranged in a circumferential array, and each screw hole (121) is arranged with a narrower upper part and a wider lower part.

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