A cap anti-loosening sleeve for a type of peripheral blood collection tube

Abstract

A cap locking sleeve for a terminal blood collection tube includes a sleeve body, elastic claws, and a clamping flange. The sleeve body has a central through-hole serving as a puncture channel. A clamping flange is located on the inner side of the annular bottom of the sleeve body. At least two downward-extending elastic claws are arranged around the outer side of the annular bottom of the sleeve body. The lower end of each elastic claw has an anti-disengagement hook, which engages and secures with the stepped section of the terminal blood collection tube to be clamped. This invention provides a cap locking sleeve for terminal blood collection tubes that effectively prevents leakage during pneumatic transmission, improving reliability and safety.

Description

Technical Field

[0001] This utility model belongs to the field of blood collection tubes and relates to a distal blood collection tube. Background Technology

[0002] Standard blood collection tube pneumatic transfer systems are widely used in hospitals for the rapid transport of blood samples. However, capillary blood collection tubes are used for young children. Because capillary tubes require removal during use, they lack the negative pressure provided by standard blood collection tubes for ease of removal and capping by medical staff. Therefore, pneumatic transfer using capillary tubes is prone to blood leakage. This leakage during pneumatic transfer can lead to sample contamination, inaccurate data, and even biosafety hazards. Therefore, addressing leakage is crucial for improving system reliability and safety. Summary of the Invention

[0003] In order to overcome the shortcomings of existing terminal blood collection tubes, such as leakage problems, poor reliability and safety during pneumatic transmission, this utility model provides a cap anti-loosening sleeve for terminal blood collection tubes that effectively avoids leakage during pneumatic transmission and improves reliability and safety.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A cap anti-loosening ferrule for a peripheral blood collection tube includes a ferrule body, elastic claws, and a clamping flange. The central through hole of the ferrule body serves as a puncture channel. A clamping flange is provided on the inner side of the annular bottom of the ferrule body. At least two downward-extending elastic claws are provided around the outer side of the annular bottom of the ferrule body. The lower end of each elastic claw is provided with an anti-disengagement hook. The anti-disengagement hook engages and fixes with the step of the peripheral blood collection tube to be clamped.

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

[0007] Preferably, the outer edge of the annular bottom of the ferrule body has two downward-extending elastic claws spaced at equal arc intervals. This is a common design, but three or more elastic claws can be provided if needed.

[0008] Furthermore, the inner side of the anti-disengagement hook is provided with a barb. This solution is suitable for situations where the bottom of the pipe cap is lower than the step of the pipe body; when the bottom of the pipe cap is not lower than the step of the pipe body, the barb does not need to be provided.

[0009] The inner side of the annular bottom of the card sleeve body is provided with at least two clamping flanges.

[0010] Preferably, the inner side of the annular bottom of the sleeve body is provided with two clamping flanges at equal arc intervals. This is a common solution, but three or more clamping flanges can be provided if needed.

[0011] The technical concept of this utility model is as follows: by setting an anti-loosening sleeve for the cap of the terminal blood collection tube, the anti-disengagement hook is used to hook the step of the terminal blood collection tube body, and the rubber plug at the rear end of the terminal blood collection tube cap is used to spring back the compression flange, thereby achieving the purpose of tightly fitting the tube body and the cap, ensuring that the terminal blood collection tube does not leak during pneumatic transmission, and greatly improving the safety of pneumatic transmission of the terminal blood collection tube.

[0012] The main benefits of this invention are: it effectively solves the problem that pneumatic transmission of capillary blood collection tubes can easily cause blood leakage, thus improving reliability and safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the anti-loosening sleeve of the cap for the terminal blood collection tube.

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

[0015] Figure 3 This is a schematic diagram of a combination of cap anti-loosening clips and end tubes.

[0016] Figure 4 This is a schematic diagram of another combination form of the cap anti-loosening clip on the end tube. Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] Reference Figures 1-4 A cap anti-loosening clamp for a peripheral blood collection tube includes a clamp body 5, elastic claws 2, and a clamping flange 4. The central through hole of the clamp body 1 is a puncture channel 1. The inner side of the annular bottom of the clamp body 1 is provided with a clamping flange 4, which abuts against the elastic body of the blood collection tube cap. At least two downward-extending elastic claws 2 are provided around the outer side of the annular bottom of the clamp body 1. The lower end of the elastic claws 2 is provided with an anti-disengagement hook 3, which is engaged and fixed with the tube body step 9 of the peripheral blood collection tube to be clamped.

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

[0020] Preferably, the outer side of the annular bottom of the sleeve body 5 is provided with two downward-extending elastic claws 2 at equal arc intervals. This is a common solution, but three or more elastic claws can be provided if needed.

[0021] Furthermore, the anti-detachment hook 3 is provided with a barb 8 on its inner side. This solution is suitable for situations where the bottom 10 of the cap is lower than the step 9 of the pipe body; when the bottom 10 of the cap is not lower than the step 9 of the pipe body, the barb 8 does not need to be provided.

[0022] The inner side of the annular bottom of the card sleeve body 5 is provided with at least two pressing flanges 4.

[0023] Preferably, the inner side of the annular bottom of the sleeve body 5 is provided with two clamping flanges 4 at equal arc intervals. This is a common solution, but three or more clamping flanges can be provided if needed.

[0024] Reference Figure 3 The anti-disengagement hook 3 is equipped with a barb 8 to handle situations where the bottom 10 of the pipe cap is lower than the step 9 of the pipe body. (Refer to...) Figure 4 The anti-detachment hook 3 is not equipped with a barb 8, which is used to deal with situations where the bottom 10 of the pipe cap is not lower than the step 9 of the pipe body.

[0025] In this embodiment, the distal blood collection tube 7 includes a tube body and a cap. The upper outer wall of the tube body is provided with a tube body step 9, and the cap is installed on the upper part of the tube body. The usage process of the distal blood collection tube 7 is as follows: First, remove the cap, collect blood from the fingertip, and then replace the cap. Insert the cap anti-loosening sleeve 6 of the distal blood collection tube from the head of the cap. The elastic claw 2 opens and passes through the cap until the anti-disengagement hook 3 at the lower end of the sleeve crosses the tube body step 9. At this time, the clamping flange 4 provided on the sleeve tightly presses the elastic body 12 of the blood collection tube cap. The elastic body 12 firmly seals the tube opening 11 of the blood collection tube body. At the same time, the rebound of the elastic body 12 causes the sleeve to receive an upward elastic force. At this time, the anti-disengagement hook 3 at the lower end of the sleeve tightly hooks the tube body step 9, thereby achieving the purpose of fastening the cap and tube body with the sleeve.

[0026] In summary, the device for storing and supplying test tubes provided by this utility model has a simple and compact structure, effectively solving the problem of leakage encountered by capillary blood collection tubes in pneumatic transmission, and has high market application and promotion value.

[0027] The embodiments described in this specification are merely examples of implementations of the inventive concept and are for illustrative purposes only. The scope of protection of this utility model should not be considered limited to the specific forms described in these embodiments; rather, it extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A tube cap anti-loosening sleeve of a peripheral blood collection tube, characterized by, The device includes a ferrule body, elastic claws, and a clamping flange. The central through hole of the ferrule body serves as a puncture channel. A clamping flange is provided on the inner side of the annular bottom of the ferrule body. The clamping flange abuts against the elastic body of the blood collection tube cap. At least two downward-extending elastic claws are provided around the outer side of the annular bottom of the ferrule body. The lower end of the elastic claws is provided with an anti-disengagement hook. The anti-disengagement hook engages and fixes with the step of the distal blood collection tube to be clamped.

2. The cap locking sleeve of a tube for a capillary blood collection tube according to claim 1, wherein The outer side of the annular bottom of the ferrule body is provided with at least two downward-extending elastic claws at equal arc intervals.

3. The cap retainer for a tube of a capillary blood collection tube according to claim 2, wherein The outer side of the annular bottom of the ferrule body is provided with two downward-extending elastic claws at equal arc intervals.

4. A cap loosening preventing sleeve for a tube of a capillary blood collection tube according to one of claims 1 to 3, characterized in that The anti-detachment hook has a barb on its inner side.

5. A cap loosening preventing sleeve for a tube of a capillary blood collection tube according to one of claims 1 to 3, characterized in that The inner side of the annular bottom of the card sleeve body is provided with at least two clamping flanges.

6. A cap retainer for a tube of a capillary blood collection tube as defined in claim 5, wherein The inner side of the annular bottom of the card sleeve body is provided with two pressing flanges at equal arc intervals.

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