Tube cap anti-loose clamping sleeve of peripheral blood collection tube

Abstract

A tube cap anti-loose clamping sleeve of a tip blood collection tube comprises a clamping sleeve body, elastic claws and a pressing flange, a middle through hole of the clamping sleeve body is a puncture channel, the pressing flange is arranged on the inner side of the annular bottom of the clamping sleeve body, at least two elastic claws extending downwards are arranged on a circle of the outer side of the annular bottom of the clamping sleeve body, and the elastic claws are arranged on the outer side of the annular bottom of the clamping sleeve body. The lower end of the elastic claw is provided with a mousing-hook, and the mousing-hook is clamped and fixed with a tube body step of a tip blood collection tube to be clamped. The invention provides the anti-loose clamping sleeve for the tube cap of the tip blood collection tube, which can effectively avoid leakage possibly occurring in a pneumatic transmission process and improve the reliability and the safety.

Description

Technical Field

[0001] The present invention belongs to the field of blood collection tubes and relates to a capillary blood collection tube. Background Art

[0002] The standard blood collection tube pneumatic transmission system is widely used in hospitals for rapid transportation of blood samples. For young children, capillary blood collection tubes are used. Since the cap of the capillary blood collection tube needs to be removed during use, in order to facilitate the removal and covering by medical staff, there is no negative pressure in the tube cap and tube body as set in the standard blood collection tube. Therefore, for the pneumatic transmission of capillary blood collection tubes, blood leakage is likely to occur. However, leakage problems may occur during the pneumatic transmission process, resulting in sample contamination, inaccurate data, and even potential biosafety hazards. Therefore, solving the leakage problem is crucial for improving the reliability and safety of the system. Summary of the Invention

[0003] In order to overcome the deficiencies of the existing capillary blood collection tubes that may have leakage problems, poor reliability and safety during pneumatic transmission, the present invention provides a tube cap anti-loosening sleeve for a capillary blood collection tube that can effectively avoid possible leakage during pneumatic transmission and improve reliability and safety.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0005] A tube cap anti-loosening sleeve for a capillary blood collection tube, comprising a sleeve body, elastic claws, and a pressing flange. The middle through hole of the sleeve body is a puncture channel. The inner side of the annular bottom of the sleeve body is provided with a pressing flange. The outer side of the annular bottom of the sleeve body is provided with at least two downwardly extending elastic claws. The lower end of the elastic claw is provided with an anti-disengagement hook, and the anti-disengagement hook is clamped and fixed with the tube body step of the capillary blood collection tube to be clamped.

[0006] Further, at least two downwardly extending elastic claws are provided at equal arc intervals on the outer side of the annular bottom of the sleeve body.

[0007] Preferably, two downwardly extending elastic claws are provided at equal arc intervals on the outer side of the annular bottom of the sleeve body. This is a commonly used solution. If necessary, three elastic claws or even more can also be provided.

[0008] Furthermore, an inverted hook is provided on the inner side of the anti-disengagement hook. This solution is applicable to the case where the bottom of the tube cap is lower than the tube body step; when the bottom of the tube cap is not lower than the tube body step, the inverted hook can be not provided.

[0009] At least two pressing flanges are provided on the inner side of the annular bottom of the sleeve body.

[0010] More preferably, two clamping flanges are arranged at equal arc intervals on the inner side of the annular bottom of the ferrule body. This is a common solution, and three or more clamping flanges can also be arranged if necessary.

[0011] The technical concept of the present invention is: by setting an anti-loosening sleeve on the tube cap of the peripheral blood collection tube, using an anti-detachment hook to hook the step of the tube body of the peripheral blood collection tube, and using the rubber plug at the rear end of the tube cap of the peripheral blood collection tube to rebound the clamping flange, the purpose of tightly sticking the tube body and the tube cap is achieved, ensuring that the peripheral blood collection tube is leak-proof during pneumatic transmission, and greatly improving the safety of pneumatic transmission of the peripheral blood collection tube.

[0012] The beneficial effects of the present invention are mainly manifested in: effectively solving the problem that pneumatic transmission of peripheral blood collection tubes may easily cause blood leakage, and improving reliability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the anti-loosening ferrule of the tube cap of the peripheral blood collection tube.

[0014] Figure 2 It is a schematic diagram of the anti-loosening sleeve of the tube cap of the peripheral blood collection tube in the other direction.

[0015] Figure 3 It is a schematic diagram of a combination of a pipe cap anti-loosening sleeve clamping the terminal pipe.

[0016] Figure 4 It is a schematic diagram of another combination form of the pipe cap anti-loosening clamp clamping the terminal pipe. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Reference Figures 1 to 4 A tube cap anti-loosening ferrule for a peripheral blood sampling tube comprises a ferrule body 5, an elastic claw 2 and a clamping flange 4. The middle through hole of the ferrule body 1 is a puncture channel 1. The inner side of the annular bottom of the ferrule body 1 is provided with a clamping flange 4, and the clamping flange 4 is in contact with the elastic body of the tube cap of the blood sampling tube. At least two downwardly extending elastic claws 2 are provided on the outer side of the annular bottom of the ferrule body 1, and an anti-detachment hook 3 is provided at the lower end of the elastic claw 2. The anti-detachment hook 3 is clamped and fixed to the tube body step 9 of the peripheral blood sampling tube to be clamped.

[0019] Furthermore, at least two downwardly extending elastic claws 2 are provided at equal arc intervals on the outer side of the annular bottom of the ferrule body 5 .

[0020] Preferably, two downwardly extending elastic claws 2 are provided at equal arc intervals on the outer side of the annular bottom of the ferrule body 5. This is a common solution, and three or more elastic claws can also be provided if necessary.

[0021] Furthermore, the inner side of the anti-drop hook 3 is provided with a barb 8. This solution is suitable for the occasion where the bottom 10 of the pipe cap is lower than the pipe body step 9; when the bottom 10 of the pipe cap is not lower than the pipe body step 9, the barb 8 may not be provided.

[0022] At least two clamping flanges 4 are arranged on the inner side of the annular bottom of the ferrule body 5 .

[0023] More preferably, two clamping flanges 4 are provided at equal arc intervals on the inner side of the annular bottom of the ferrule body 5. This is a common solution, and three or more clamping flanges can also be provided if necessary.

[0024] Reference Figure 3 The anti-detachment hook 3 is provided with a barb 8 for dealing with the situation where the bottom 10 of the pipe cap is lower than the step 9 of the pipe body. Figure 4 The anti-detachment hook 3 is not provided with a barb 8, which is used to cope with the situation where the bottom 10 of the pipe cap is not lower than the step 9 of the pipe body.

[0025] In this embodiment, the peripheral blood collection tube 7 includes a tube body and a tube cap, the upper outer wall of the tube body is provided with a tube body step 9, and the tube cap is installed on the upper part of the tube body; the use process of the peripheral blood collection tube 7 is: first remove the tube cap, and after collecting blood from the fingertip, put the tube cap back on. The tube cap anti-loosening sleeve 6 of the peripheral blood collection tube is inserted from the tube cap head, the elastic claw 2 is opened, and passes through the tube cap until the anti-detachment hook 3 at the lower end of the sleeve crosses the tube body step 9. At this time, the clamping flange 4 set on the sleeve tightly presses the elastic body 12 of the tube cap of the blood collection tube, and the elastic body 12 firmly seals the tube mouth 11 of the tube body of the blood collection tube. At the same time, the rebound of the elastic body 12 causes the entire sleeve to receive an upward elastic force. At this time, the anti-detachment hook 3 at the lower end of the sleeve tightly hooks the tube body step 9, thereby achieving the purpose of using the sleeve to fasten the tube cap and the tube body.

[0026] In summary, the device for storing and supplying test tubes provided by the present invention has a simple and compact structure, effectively solves the problem of leakage encountered by peripheral blood collection tubes during pneumatic transmission at this stage, and has a high market application and promotion value.

[0027] The contents described in the embodiments of this specification are merely enumerations of implementation forms of the inventive concept and are for illustrative purposes only. The protection scope of the present invention should not be considered to be limited to the specific forms described in this embodiment, and the protection scope of the present invention also extends to equivalent technical means that can be thought of by ordinary technicians in this field based on the inventive concept.

Claims

1. A tube cap anti-loosening sleeve for a peripheral blood collection tube, characterized in that, It includes a ferrule body, elastic claws and a pressing flange. The middle through-hole of the ferrule body is a puncture channel. The inner side of the annular bottom of the ferrule body is provided with a pressing flange, and the pressing flange is in contact and cooperation with the elastomer of the blood collection tube cap. At least two downwardly extending elastic claws are provided in a circle on the outer side of the annular bottom of the ferrule body. An anti-detachment hook is provided at the lower end of the elastic claw, and the anti-detachment hook is fixedly clamped with the tube body step of the capillary blood collection tube to be clamped.

2. The anti-loosening ferrule of the tube cap of a fingertip blood collection tube according to claim 1, characterized in that At least two downwardly extending elastic claws are provided in a circle on the outer side of the annular bottom of the ferrule body at equal arc intervals.

3. The anti-loosening ferrule of the tube cap of a fingertip blood collection tube according to claim 2, characterized in that, Two downwardly extending elastic claws are provided in a circle on the outer side of the annular bottom of the ferrule body at equal arc intervals.

4. A tube cap anti-loosening ferrule for a peripheral blood collection tube according to any one of claims 1 to 3, characterized in that, A barb is provided on the inner side of the anti-detachment hook.

5. A tube cap anti-loosening ferrule for a peripheral blood collection tube according to any one of claims 1 to 3, characterized in that, At least two pressing flanges are provided in a circle on the inner side of the annular bottom of the ferrule body.

6. The anti-loosening ferrule of the tube cap of a fingertip blood collection tube according to claim 5, wherein, Two pressing flanges are provided in a circle on the inner side of the annular bottom of the ferrule body at equal arc intervals.

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