Blood sampling tube pressing mechanism and automatic detection device

Abstract

The utility model discloses a blood sampling tube pressing mechanism which comprises a supporting assembly. The lead screw motor is arranged on the supporting assembly; the cap pressing assembly is movably arranged on the supporting assembly and is in transmission connection with the lead screw motor, and the cap pressing assembly comprises a movable supporting structure which is movably arranged on the supporting assembly and is in transmission connection with the lead screw motor; the pressing cap structure is movably arranged on the movable supporting structure; the at least one buffering piece is arranged between the movable supporting structure and the pressing cap structure; the first sensing devices are respectively arranged on the movable supporting structure and the pressing cap structure; and the second sensing devices are respectively arranged on the movable supporting structure and the supporting assembly. The utility model also discloses an automatic detection device. Through cooperation of the lead screw motor and the pressing cap assembly, the problem that an existing tube pressing mechanism cannot be matched with blood collection tubes of different heights is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tube pressing mechanisms, and in particular to a tube pressing mechanism and an automatic detection device for blood collection tubes. Background Art

[0002] Blood testing is a conventional means of medical diagnosis of diseases. Using blood collection tubes to collect blood as test samples is the most common method. Blood collection tubes have become a necessary and widely used medical device in hospitals. The large-scale application of blood collection tubes makes the blood collection method more reliable and also provides great convenience for medical staff's blood collection work. At present, the puncture needle is inserted into the blood collection tube through a rubber cap to absorb the sample. After absorbing the sample, the puncture needle needs to be pulled out of the blood collection tube, which may bring the blood collection tube out of the blood collection tube clamping mechanism. There are also devices that can press blood collection tubes in the prior art, but they can generally only adapt to blood collection tubes of fixed heights, and cannot adapt to blood collection tubes of different heights. Therefore, a blood collection tube pressing mechanism and an automatic detection device are provided to solve the problem that the existing tube pressing mechanism cannot match blood collection tubes of different heights. Utility Model Content

[0003] One of the purposes of the utility model is to provide a blood collection tube pressing mechanism and an automatic detection device, so as to solve the problem that the existing tube pressing mechanism cannot match blood collection tubes of different heights.

[0004] The utility model of a blood collection tube compression mechanism and an automated detection device can be realized by the following technical solutions:

[0005] The utility model discloses a blood collection tube pressing mechanism, comprising a support assembly; a screw motor, which is arranged on the support assembly; a pressure cap assembly, which is movably arranged on the support assembly and is transmission-connected to the screw motor; wherein the pressure cap assembly comprises a movable support structure, which is movably arranged on the support assembly and is transmission-connected to the screw motor; a pressure cap structure movably arranged on the movable support structure, which can be in contact and connected with the blood collection tube; at least one buffer member arranged between the movable support structure and the pressure cap structure; a first sensing device, which is respectively arranged on the movable support structure and the pressure cap structure, and which performs real-time monitoring operation on whether the pressure cap structure presses the rubber cap of the blood collection tube; and a second sensing device, which is respectively arranged on the movable support structure and the support assembly, and which performs real-time monitoring operation on the initial position of the screw motor.

[0006] In one embodiment, the support assembly includes a fixed plate, a support plate and at least one guide shaft; the support plate and at least one guide shaft are respectively fixedly arranged on the support plate, and the pressure cap assembly is movably arranged on at least one guide shaft.

[0007] In one embodiment, a limiting rod is fixedly provided on the support plate and can be in contact and connected with the pressing cap assembly.

[0008] In one embodiment, the movable support structure includes a movable plate, a support frame and a screw sleeve; the movable plate is movably inserted through at least one of the guide shafts; the support frame is fixedly arranged on the movable plate, and the pressure cap structure is movably arranged between the movable plate and the support frame; the screw sleeve is fixedly arranged through the movable plate and is transmission-connected to the screw motor.

[0009] In one embodiment, the pressing cap structure includes a connecting plate, a pressing cap body and at least one guide sleeve; the connecting plate is movably arranged between the movable plate and the supporting frame; the pressing cap body is fixedly arranged on the side of the connecting plate, and can be in contact and connected with the rubber cap of the blood collection tube; at least one guide sleeve is fixedly arranged on the connecting plate and movably passes through the corresponding guide shaft.

[0010] In one embodiment, a notch is provided through the pressure cap body.

[0011] In one embodiment, the two buffer members are respectively arranged between the support frame and the connecting plate; and the buffer members are springs.

[0012] In one embodiment, the first sensing device is a contact switch, which includes a first movable sensor and a first fixed sensor; the first movable sensor is fixedly arranged on the pressure cap structure, and the first fixed sensor is fixedly arranged on the movable supporting structure; the first movable sensor can sense contact with the first fixed sensor.

[0013] In one of the implementation modes, in this embodiment, the second sensing device is a contact switch, which includes a second movable sensor and a second fixed sensor; the second movable sensor is fixedly arranged on the movable supporting structure, and the second fixed sensor is fixedly arranged on the supporting assembly; the second movable sensor can contact and sense with the second fixed sensor.

[0014] An automated detection device comprises the blood collection tube compression mechanism described in any one of the above items.

[0015] Compared with the prior art, the beneficial effects of the blood collection tube compression mechanism and the automatic detection device of the utility model are as follows:

[0016] The utility model discloses a blood collection tube pressing mechanism and an automatic detection device, which drives the pressing cap structure to move downward through a screw motor, and can be in contact and connected with rubber caps of blood collection tubes at different heights. When the rubber cap of the blood collection tube contacts the pressing cap structure, a pressing cap sensing device is triggered to stop the screw motor, making it convenient to pull the puncture needle out of the blood collection tube, and effectively solving the problem that the existing tube pressing mechanism cannot match blood collection tubes at different heights. At the same time, the device is made more intelligent by arranging a pressing cap sensing device and a screw reset sensing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a blood collection tube pressing mechanism of the utility model, including a pressing cap assembly;

[0019] Figure 2 yes Figure 1 The structure diagram of the utility model of a blood collection tube pressing mechanism from another perspective is shown;

[0020] Figure 3 yes Figure 1 The exploded structure diagram of a blood collection tube pressing mechanism of the utility model is shown as follows

[0021] Figure 4 yes Figure 1 The exploded structural schematic diagram of the pressure cap assembly shown includes a pressure cap structure and a first sensing device;

[0022] Figure 5 yes Figure 4 A schematic structural diagram of the pressure cap structure shown;

[0023] Figure 6 yes Figure 4 A schematic structural diagram of the first sensor device is shown.

[0024] Indications in the figure: 10, blood collection tube pressing mechanism; 11, support assembly; 111, fixing plate; 1111, fixing hole; 112, support plate; 1121, limiting rod; 113, guide shaft; 12, screw motor; 13, pressing cap assembly; 131, movable supporting structure; 1311, movable plate; 1312, support frame; 1313, screw sleeve; 132, pressing cap structure; 1321, connecting plate; 1322, pressing cap body; 13221, notch; 1323, guide sleeve; 133, buffer; 134, first sensing device; 1341, first movable sensing element; 1342, first fixed sensing element; 135, second sensing device; 1351, second movable sensing element; 1352, first fixed sensing element. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0027] See also Figure 1-Figure 3 As shown, the utility model provides a blood collection tube pressing mechanism 10, comprising a support assembly 11, a screw motor 12 and a pressing cap assembly 13; the support assembly 11 is a supporting body, which is fixedly arranged on the side of the blood collection tube clamping mechanism; the screw motor 12 and the pressing cap assembly 13 are respectively arranged on the support assembly 11, the pressing cap assembly 13 is transmission-connected with the screw motor 12, and the screw motor 12 drives the pressing cap assembly 13 to move longitudinally, so that it can contact and connect with the rubber cap of the blood collection tube.

[0028] See also Figure 1-Figure 3As shown, the support assembly 11 includes a fixed plate 111, a support plate 112 and at least one guide shaft 113; the fixed plate 111 is fixedly arranged on the side of the blood collection tube clamping mechanism; the support plate 112 and at least one guide shaft 113 are respectively fixedly arranged on the support plate 112, and the pressing cap assembly 13 is movably arranged on at least one guide shaft 113, and the guide shaft 113 guides the pressing cap assembly 13; in this embodiment, two guide shafts 113 are fixedly arranged vertically and in parallel on the support plate 112; in other embodiments, the number of the guide shafts 113 can be one, three or other plurality, and the number is set according to actual needs. Specifically, at least one fixing hole 1111 is penetrated through the fixing plate 111, and is fixed at the position where it needs to be installed through at least one fixing hole 1111; a limiting rod 1121 is fixedly arranged on the support plate 112, which can be in contact and connected with the pressure cap assembly 13, so as to limit the movement range of the pressure cap structure 132; the screw motor 12 adopts the existing technology, so its specific structure and the model adopted are not described here, as long as it meets the requirements of this application.

[0029] See also Figure 1-Figure 4 As shown, in this embodiment, the pressing cap assembly 13 includes a movable support structure 131, a pressing cap structure 132, at least one buffer 133, a first sensing device 134 and a second sensing device 135; the movable support structure 131 is movably arranged on the support assembly 11 and is in transmission connection with the screw motor 12, and the screw motor 12 drives the movable support structure 131 to move longitudinally under the guidance of at least one guide shaft 113; the pressing cap structure 132 is movably arranged on the movable support structure 131 and can contact the blood collection tube connection; at least one of the buffer members 133 is arranged between the movable supporting structure 131 and the pressing cap structure 132, which provides elastic force to the pressing cap structure 132; the first sensing device 134 is respectively arranged on the movable supporting structure 131 and the pressing cap structure 132, and performs real-time monitoring operation on whether the pressing cap structure 132 presses the rubber cap of the blood collection tube; the second sensing device 135 is respectively arranged on the movable supporting structure 131 and the supporting plate 112, and performs real-time monitoring operation on the initial position of the screw motor 12.

[0030] See also Figure 4As shown, in this embodiment, the movable support structure 131 includes a movable plate 1311, a support frame 1312 and a screw sleeve 1313; the movable plate 1311 is movably penetrated on at least one of the guide shafts 113; the support frame 1312 is fixedly arranged on the movable plate 1311, and the pressure cap structure 132 is movably arranged between the movable plate 1311 and the support frame 1312; the screw sleeve 1313 is fixedly arranged on the movable plate 1311 and is transmission-connected with the screw motor 12, and through the cooperation of the screw motor 12 and the screw sleeve 1313, the screw motor 12 drives the movable plate 1311 to move longitudinally.

[0031] See also Figure 4 and Figure 5 As shown, in this embodiment, the pressing cap structure 132 includes a connecting plate 1321, a pressing cap body 1322 and at least one guide sleeve 1323; the connecting plate 1321 is movably arranged between the movable plate 1311 and the supporting frame 1312; the pressing cap body 1322 is fixedly arranged on the side of the connecting plate 1321, and can be in contact and connected with the rubber cap of the blood collection tube; at least one guide sleeve 1323 is fixedly penetrated by the connecting plate 1321 and movably penetrates the corresponding guide shaft 113 respectively, and can smoothly move longitudinally on the corresponding guide shaft 113; the number of the guide sleeves 1323 is consistent with the number of the guide shafts 113; specifically, a notch 13221 is penetrated on the pressing cap body 1322, and the position of the notch 13221 corresponds to the position of the puncture needle, so as to facilitate the puncture needle to penetrate the pressing cap body 1322.

[0032] See also Figure 4 As shown, in this embodiment, the two buffer members 133 are respectively arranged between the support frame 1312 and the connecting plate 1321. Specifically, the buffer members 133 are springs. In other embodiments, the number of the buffer members 133 can be one, three or other plurality, and the number is set according to actual needs.

[0033] See also Figure 4 and Figure 6As shown, in this embodiment, both the first sensing device 134 and the second sensing device 135 are contact switches; the first sensing device 134 includes a first movable sensor 1341 and a first fixed sensor 1342; the first movable sensor 1341 is fixedly arranged on the pressure cap structure 132, the first fixed sensor 1342 is fixedly arranged on the movable support structure 131, and the first movable sensor 1341 moves along with the movement of the pressure cap structure 132, so as to realize contact sensing operation with the first fixed sensor 1342. In this embodiment, the second sensing device 135 includes a second movable sensor 1351 and a second fixed sensor 1352; the second movable sensor 1351 is fixedly arranged on the movable support structure 131, the second fixed sensor 1352 is fixedly arranged on the support assembly 11, and the second movable sensor 1351 moves along with the movement of the movable support structure 131, so as to realize contact sensing operation with the second fixed sensor 1352.

[0034] The utility model provides an automatic detection device comprising any one of the above-mentioned blood collection tube compression mechanisms 10.

[0035] It should be noted that the specific working process of the blood collection tube pressing mechanism and the automatic detection device of the utility model is as follows: when the puncture needle needs to be pulled out of the blood collection tube after sucking the sample in the blood collection tube, the screw motor 12 drives the pressing cap structure 132 to move downward, and when the pressing cap structure 132 is in contact with the rubber cap of the blood collection tube, the rubber cap of the blood collection tube will give the pressing cap structure 132 a reverse force, and due to the buffering effect of the buffer 133, the pressing cap structure 132 will move upward, thereby compressing the buffer 133, and at the same time, the first movable sensor 13 fixedly arranged on the pressing cap structure 132 41 follows the pressure cap structure 132 to move upward, and realizes contact sensing with the first fixed sensor 1342 fixedly arranged on the movable support structure 131, so that the screw motor 12 stops working. At this time, the pressure cap structure 132 presses the rubber cap of the blood collection tube to facilitate the puncture needle to be pulled out from the blood collection tube; when the puncture needle is pulled out, the screw motor 12 drives the pressure cap structure 132 to move upward, and when the second movable sensor 1351 fixedly arranged on the movable support structure 131 contacts and senses the second fixed sensor 1352, the screw motor 12 returns to the initial position and stops working.

[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A blood collection tube compression mechanism, characterized in that: including a support assembly; A screw motor, which is arranged on the support assembly; A pressure cap assembly, which is movably arranged on the support assembly and is drivingly connected to the screw motor; Among them, the pressing cap assembly includes a movable supporting structure, which is movably arranged on the supporting assembly and is transmission-connected to the screw motor; a pressing cap structure movably arranged on the movable supporting structure, which can be in contact and connected with the blood collection tube; at least one buffer member arranged between the movable supporting structure and the pressing cap structure; a first sensing device respectively arranged on the movable supporting structure and the pressing cap structure, which performs real-time monitoring operation on whether the pressing cap structure presses the rubber cap of the blood collection tube; and a second sensing device respectively arranged on the movable supporting structure and the supporting assembly, which performs real-time monitoring operation on the initial position of the screw motor.

2. A blood collection tube compression mechanism according to claim 1, characterized in that: The support assembly includes a fixing plate, a support plate and at least one guide shaft; the support plate and at least one guide shaft are respectively fixedly arranged on the support plate, and the pressure cap assembly is movably arranged on at least one guide shaft.

3. A blood collection tube compression mechanism according to claim 2, characterized in that: The support plate is fixedly provided with a limiting rod which can be in contact and connected with the pressing cap assembly.

4. A blood collection tube compression mechanism according to claim 2, characterized in that: The movable supporting structure includes a movable plate, a supporting frame and a screw sleeve; the movable plate movably penetrates at least one of the guide shafts; the supporting frame is fixedly arranged on the movable plate, and the pressure cap structure is movably arranged between the movable plate and the supporting frame; the screw sleeve is fixedly arranged on the movable plate and is connected to the screw motor in a transmission manner.

5. A blood collection tube compression mechanism according to claim 4, characterized in that: The pressing cap structure includes a connecting plate, a pressing cap body and at least one guide sleeve; the connecting plate is movably arranged between the movable plate and the supporting frame; the pressing cap body is fixedly arranged on the side of the connecting plate, and can be in contact and connected with the rubber cap of the blood collection tube; at least one guide sleeve is fixedly arranged on the connecting plate and movably penetrates the corresponding guide shaft.

6. A blood collection tube compression mechanism according to claim 5, characterized in that: The pressure cap body is penetrated with a notch.

7. A blood collection tube compression mechanism according to claim 5, characterized in that: The two buffer members are respectively arranged between the support frame and the connecting plate; the buffer members are springs.

8. A blood collection tube compression mechanism according to claim 1, characterized in that: The first sensing device is a contact switch, which includes a first movable sensing element and a first fixed sensing element; The first movable sensor is fixedly arranged on the pressure cap structure, and the first fixed sensor is fixedly arranged on the movable supporting structure; The first movable sensing element is capable of contact sensing with the first fixed sensing element.

9. A blood collection tube compression mechanism according to claim 4, characterized in that: The second sensing device is a contact switch, which includes a second movable sensing element and a second fixed sensing element; The second movable sensor is fixedly arranged on the movable supporting structure, and the second fixed sensor is fixedly arranged on the supporting assembly; The second movable sensing member can sense contact with the second fixed sensing member.

10. An automated detection device, characterized in that: The invention comprises the blood collection tube compression mechanism as described in any one of claims 1 to 9.

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