Sampling tube

Abstract

The utility model relates to a sampling tube which comprises a tube body, a liquid inlet end and a connecting end are arranged on the tube body, a sampling opening is formed in the tube body, a sealing plug is placed in the sampling opening, a connecting sleeve is detachably connected to the sampling opening and covers the sealing plug, an inserting hole is formed in the connecting sleeve, and the inserting hole is communicated with the liquid inlet end and the connecting end. The connecting sleeve is in sliding fit with a shielding plate, a through hole is formed in the shielding plate, the connecting sleeve is provided with a limiting part for limiting the movement of the shielding plate and a restoring part for enabling the shielding plate to return to the initial position, and the inserting hole is aligned with the through hole during sampling. The sampling pipe has the effect of improving the sealing performance of the sampling pipe.

Description

Technical Field

[0001] This application relates to the field of urine sampling technology, and in particular to a sampling tube. Background Technology

[0002] The sampling tube on the urine bag connects to the urine catheter at the inlet end and has an elastic stopper. During sampling, medical staff use a syringe needle to insert into the elastic stopper to draw out urine. After the needle is removed, the elastic stopper will use its own elasticity to seal the inlet.

[0003] Chinese patent CN212996519U discloses a sampling valve for a urinary catheter. The valve features a mounting hole penetrating the side wall of its vertical tube, within which a resilient valve core is fitted with an interference fit. An inner tube is located inside the vertical tube, with a limiting hole penetrating at a position corresponding to the mounting hole. The diameter of the limiting hole is smaller than that of the mounting hole. In use, medical personnel insert the needle of a syringe into the resilient valve core to draw urine. After urine collection, the medical personnel withdraw the syringe from the resilient valve core. The elasticity of the valve core closes the needle hole. Because the resilient valve core is directly mounted on the side wall of the vertical tube without any protrusions, it effectively prevents the sampling valve from contacting the patient's body during use, further improving patient comfort.

[0004] Regarding the aforementioned technologies, existing technologies involve making an incision in the elastic valve core to facilitate the insertion of a syringe needle by medical personnel to collect urine samples. However, the elastic valve core relies on its own elastic deformation to close the incision. But as the number of urine tests increases and the elastic valve core is repeatedly inserted and removed, the incision will become damaged and enlarged, and there is a possibility that the incision cannot close smoothly. As a result, urine will leak from the elastic valve core. Utility Model Content

[0005] To address the aforementioned problems, this application provides a sampling tube.

[0006] The sampling tube provided in this application adopts the following technical solution:

[0007] A sampling tube includes a tube body with an inlet end and a connecting end. A sampling port is provided on the tube body, and a sealing plug is placed inside the sampling port. A connecting sleeve is detachably connected to the sampling port, covering the sealing plug. An insertion hole is provided on the connecting sleeve, and a baffle plate is slidably fitted onto the connecting sleeve. A through hole is provided on the baffle plate. The connecting sleeve is provided with a limiting element that restricts the movement of the baffle plate and a restoring element that returns the baffle plate to its initial position. During sampling, the insertion hole and the through hole are aligned.

[0008] By adopting the above technical solution, the inlet end is used to connect to the urine catheter, and the connecting end is used to connect to the urine bag. A detachable connecting sleeve engages with the sampling port to restrict the sealing plug. During sampling, the shield is pushed to align the through-hole with the insertion hole, and the restrictor limits the shield's movement. In the normal state, the restrictor is released, and the restoring component returns the shield to its initial position, at which point the shield covers the insertion hole. The elastic deformation of the sealing plug seals its own needle insertion port as a first seal, and the shield blocks the insertion hole as a second seal. The combination of these two seals reduces the possibility of urine leakage from the sampling port, improving the sealing performance of the sampling tube compared to existing technologies.

[0009] Optionally, the connecting sleeve has a sliding groove, which is a T-shaped groove. The cover plate is slidably fitted in the sliding groove. A fixing block is connected to the opening of the sliding groove. A sliding rod is connected to the cover plate. The sliding rod passes through the fixing block and is slidably fitted with the fixing block. A stop block is connected to the end of the sliding rod away from the cover plate. The restoring element is a return spring. The restoring element is sleeved on the sliding rod and located between the fixing block and the stop block.

[0010] By adopting the above technical solution, the elastic force of the restoring component is used to push the stop block, causing the cover plate to move until the cover plate touches the fixed block. At this time, the cover plate blocks the insertion hole, realizing the effect of the cover plate returning to the initial position and sealing the insertion hole.

[0011] Optionally, the limiting element is a limiting strip, which is connected to the bottom wall of the sliding groove. The shield has a limiting groove at the position corresponding to the limiting element, and the limiting element is embedded in the limiting groove during sampling.

[0012] By adopting the above technical solution, the movement of the shield is restricted by the cooperation of the limiting component and the limiting groove. At this time, the insertion hole and the through hole are aligned, which facilitates the collection of urine samples by medical staff.

[0013] Optionally, the end of the cover away from the slide bar has an auxiliary notch, which connects to the limiting groove.

[0014] While the above technical solution effectively restricts the movement of the baffle by cooperating with the limiting component and the limiting groove, there is a possibility that the limiting component may not be able to smoothly enter the limiting groove during the actual operation. The auxiliary notch is used to assist the limiting component in entering the limiting groove, making it easier for the baffle to be restricted by the limiting component.

[0015] Optionally, the connecting sleeve is provided with an ejection assembly, which includes an ejection rod and an ejection flange. The connecting sleeve has an ejection groove that communicates with the sliding groove. The ejection rod is rotatably connected in the ejection groove. The ejection rod is L-shaped, with one end extending to the outside of the ejection groove and the other end connected to an abutment block. The ejection flange is connected to the abutment block and abuts against the auxiliary notch.

[0016] By adopting the above technical solution, the cooperation between the limiting component and the limiting groove makes pushing the cover plate relatively difficult. When pushing the cover plate, pressure is applied to one end of the ejector rod, causing the ejector rod to rotate, which in turn drives the ejector flange to rotate. The ejector flange then presses against the cover plate, causing the cover plate to move. The limiting component disengages from the limiting groove, and at this point, the cover plate returns to its initial position under the force of the restoring component, covering the insertion hole, thus achieving the effect of pushing the cover plate. By using the ejector assembly to assist in pushing the cover plate, the insertion hole is sealed, improving the operability of the cover plate.

[0017] Optionally, the connecting sleeve is provided with a threaded section, and a sealing strip is wound on the threaded section. The connecting sleeve is threadedly fitted at the sampling port, and the sealing strip is located between the connecting sleeve and the sampling port.

[0018] By adopting the above technical solution, the threaded section enables the connecting sleeve to be detachable, allowing the sealing plug to be easily replaced. Subsequently, by wrapping the sealing tape around the threaded section, the sealing performance between the connecting sleeve and the sampling port is further improved, reducing the possibility of urine leakage from the connecting sleeve.

[0019] Optionally, the cover plate is provided with anti-slip texture.

[0020] By adopting the above technical solution, the anti-slip texture is used to increase the friction of the mask surface, making the mask easier to control.

[0021] Optionally, the tube body is provided with a connecting assembly, which includes a connecting protrusion and a clamping cylinder. The connecting protrusion is connected to the liquid inlet end of the tube body. The cross-section of the connecting protrusion is triangular. The thickness of the connecting protrusion gradually increases from the liquid inlet end of the tube body to the sampling port as a reference direction. The clamping cylinder is threaded into the liquid inlet end of the tube body and is located between the connecting protrusion and the sampling port.

[0022] By employing the above technical solution, when connecting the sampling tube to the urinary catheter, the deformation force of the catheter is often used to restrict its movement. However, when the urinary catheter is impacted by an external force, the instantaneous impact force exceeds the deformation force of the catheter, causing the catheter to detach from the sampling tube. During catheter installation, one end of the catheter is fitted onto the connecting protrusion ring, and then the clamping cylinder is rotated. The clamping cylinder moves until its inner end wall presses against the end of the catheter, causing deformation of the catheter end and achieving the effect of restricting its movement. The reaction force after the catheter deformation presses against the clamping cylinder, increasing the friction between the clamping cylinder and the tube body, thus preventing the clamping cylinder from loosening.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The inlet end is used to connect to the urine catheter, and the connecting end is used to connect to the urine bag. A detachable connecting sleeve engages with the sampling port to restrict the sealing plug. During sampling, the shield is pushed to align the through-hole with the insertion hole, and the restrictor limits the shield's movement. In the normal state, the restrictor is released, and the restoring mechanism returns the shield to its initial position, at which point the shield covers the insertion hole. The first seal utilizes the elastic deformation of the sealing plug to block its own needle insertion port, while the second seal utilizes the shield to block the insertion hole. The combination of these two seals reduces the possibility of urine leakage from the sampling port, improving the sealing performance of the sampling tube compared to existing technologies.

[0025] 2. When pushing the cover plate, pressure is applied to one end of the ejector rod, causing the ejector rod to rotate. This rotates the ejector flange, which in turn presses against the cover plate, causing it to move. The limiting component disengages from the limiting groove, and the cover plate returns to its initial position under the force of the restoring component, covering the insertion hole. This achieves the effect of pushing the cover plate. By using the ejector assembly to assist in pushing the cover plate, the insertion hole is sealed, improving the operability of the cover plate.

[0026] 3. When installing the urinary catheter, place one end of the catheter onto the connecting protrusion, then rotate the clamping cylinder. The clamping cylinder moves until its inner wall presses against the end of the catheter, deforming the end of the catheter and thus restricting its movement. The reaction force after the catheter deforms presses against the clamping cylinder, increasing the friction between the clamping cylinder and the tube body, preventing the clamping cylinder from loosening. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the sampling tube in the embodiments of this application.

[0028] Figure 2 This is a cross-sectional view used to illustrate the structure of the connecting component in the embodiments of this application.

[0029] Figure 3 This is an exploded view used in the embodiments of this application to illustrate the structure of the sealing plug, connecting sleeve, and shield.

[0030] Figure 4This is a cross-sectional view used in the embodiments of this application to illustrate the structure of the sealing plug, connecting sleeve, cover plate and ejector assembly.

[0031] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0032] Explanation of reference numerals in the attached drawings: 1. Tube body; 11. Inlet end; 12. Connecting end; 13. Sampling port; 14. Sealing plug; 2. Connecting assembly; 21. Connecting protrusion ring; 22. Clamping cylinder; 3. Connecting sleeve; 31. Insertion hole; 32. Sliding groove; 321. Fixing block; 33. Ejection groove; 4. Baffle plate; 41. Through hole; 42. Anti-slip texture; 43. Sliding rod; 431. Stop block; 44. Restoring part; 45. Auxiliary notch; 5. Limiting part; 6. Ejection assembly; 61. Ejection rod; 62. Ejection flange. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0034] This application discloses a sampling tube. (Refer to...) Figure 1 and Figure 2 The sampling tube includes a tube body 1, on which an inlet end 11 and a connecting end 12 are provided. The inlet end 11 is provided with a connecting assembly 2, which includes a connecting protruding ring 21 and a clamping cylinder 22. The connecting protruding ring 21 is integrally formed on the inlet end 11, and its cross-section is triangular. Taking the direction from the inlet end 11 to the connecting end 12 as a reference, the thickness of the connecting protruding ring 21 gradually increases. The clamping cylinder 22 is threaded onto the inlet end 11 and is located between the connecting protruding ring 21 and the connecting end 12.

[0035] When connecting the urinary catheter, one end of the urinary catheter is fitted onto the connecting protrusion 21. Rotating the clamping cylinder 22 causes the clamping cylinder 22 to move and clamp one end of the urinary catheter, causing the one end of the urinary catheter to deform, thus achieving the effect of installing one end of the urinary catheter.

[0036] Reference Figure 1 and Figure 3 The tube body 1 is provided with a sampling port 13, and a sealing plug 14, which is a rubber plug, is placed at the sampling port 13. A connecting sleeve 3 is provided at the sampling port 13, and a threaded section is provided on the surface of the connecting sleeve 3. A sealing strip is wound around the threaded section. The connecting sleeve 3 is threadedly engaged with the sampling port 13 through the threaded section. The sealing plug 14 is located inside the connecting sleeve 3, and the sealing strip is located between the connecting sleeve 3 and the sampling port 13. The sealing strip is used to improve the sealing between the sampling port 13 and the connecting sleeve 3. An insertion hole 31 is provided on the connecting sleeve 3.

[0037] Reference Figure 3 and Figure 4The connecting sleeve 3 has a sliding groove 32, which is a T-shaped groove. A cover plate 4 is slidably fitted inside the sliding groove 32. The surface of the cover plate 4 is flush with the surface of the connecting sleeve 3. The cover plate 4 has a through hole and anti-slip texture 42 for easy pushing. A restoring element 44, which is a restoring spring, is provided on the cover plate 4. Several sliding rods 43 are fixedly connected to the cover plate 4. In this embodiment, two rods are used as an example. The sliding rods 43 pass through the fixing block 321 and are slidably fitted with the fixing block 321. A stop block 431 is fixedly connected to the end of the sliding rod 43 away from the cover plate 4. The restoring element 44 is sleeved on the sliding rod 43 and is located between the fixing block 321 and the stop block 431. In the initial state, the cover plate 4 abuts against the fixing block 321, and at this time, the cover plate 4 covers the insertion hole 31.

[0038] Reference Figure 4 and Figure 5 The connecting sleeve 3 is provided with a limiting element 5, which is a limiting strip. The bottom wall of the cover plate 4 has a limiting groove, and the limiting groove is provided with an auxiliary notch 45, which is used to facilitate the entry of the limiting element 5 into the limiting groove. During sampling, the limiting strip is located in the limiting groove, and the insertion hole 31 is aligned with the through hole.

[0039] Reference Figure 4 and Figure 5 The connecting sleeve 3 is equipped with an ejector assembly 6, which includes an ejector rod 61 and an ejector flange 62. The connecting sleeve 3 has an ejector groove 33, one end of which communicates with the sliding groove 32. The ejector rod 61 is L-shaped and hinged within the ejector groove 33. One end of the ejector rod 61 extends outside the ejector groove 33, and an operating block is fixedly connected to one end. A contact block is fixedly connected to the other end, and the ejector flange 62 is fixedly connected to the contact block, forming an abutment auxiliary notch 45.

[0040] When the cover plate 4 is pushed, the operating block is pressed, causing the ejector rod 61 to rotate, which in turn causes the ejector flange 62 to rotate, moving the cover plate 4. The limiting member 5 disengages from the limiting groove, and the cover plate 4 returns to its initial position under the force of the restoring member 44, thus achieving the effect of pushing the cover plate 4.

[0041] The implementation principle of a sampling tube in this application embodiment is as follows: Before sampling, one end of the urine tube is sleeved on the connecting protrusion 21. Then, the clamping cylinder 22 is rotated until it clamps one end of the urine tube to install the urine tube. Then, the cover plate 4 is moved until the limiting strip enters the limiting groove, and the restoring member 44 is compressed. At this time, the insertion hole 31 is aligned with the through hole, and the syringe needle can be inserted into the sealing plug 14 to sample urine. Then, pressure is applied to one end of the ejector rod 61 to make the ejector rod 61 rotate, which drives the ejector flange 62 to rotate, thereby pushing the cover plate 4 and causing the limiting member 5 to disengage from the limiting groove. The cover plate 4 returns to its initial position under the force of the restoring member 44. At this time, the cover plate 4 covers the insertion hole 31, realizing the process of sampling urine.

[0042] The first seal is achieved by using the elastic deformation of the sealing plug 14 to block the needle insertion port, and the second seal is achieved by using the shield 4 to block the insertion hole 31. Through the cooperation of the first and second seals, the possibility of urine leakage from the sampling port 13 is reduced, which improves the sealing performance of the sampling tube compared with the existing technology.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sampling tube, characterized in that: The device includes a tube body (1), which has an inlet end (11) and a connecting end (12). The tube body (1) has a sampling port (13), and a sealing plug (14) is placed inside the sampling port (13). A connecting sleeve (3) is detachably connected to the sampling port (13), and the connecting sleeve (3) covers the sealing plug (14). The connecting sleeve (3) has an insertion hole (31), and a cover plate (4) is slidably fitted on the connecting sleeve (3). The cover plate (4) has a through hole, and the connecting sleeve (3) has a limiting member (5) that restricts the movement of the cover plate (4) and a restoring member (44) that returns the cover plate (4) to its initial position. During sampling, the insertion hole (31) and the through hole are aligned.

2. The sampling tube according to claim 1, characterized in that: The connecting sleeve (3) has a sliding groove (32), which is a T-shaped groove. The cover plate (4) is slidably fitted in the sliding groove (32). A fixing block (321) is connected to the opening of the sliding groove (32). A sliding rod (43) is connected to the cover plate (4). The sliding rod (43) passes through the fixing block (321) and is slidably fitted with the fixing block (321). A stop block (431) is connected to the end of the sliding rod (43) away from the cover plate (4). The restoring element (44) is a return spring. The restoring element (44) is sleeved on the sliding rod (43) and located between the fixing block (321) and the stop block (431).

3. The sampling tube according to claim 2, characterized in that: The limiting member (5) is a limiting strip. The limiting member (5) is connected to the bottom wall of the sliding groove (32). The shield (4) has a limiting groove at the position corresponding to the limiting member (5). When sampling, the limiting member (5) is embedded in the limiting groove.

4. The sampling tube according to claim 3, characterized in that: The end of the cover plate (4) away from the slide bar (43) has an auxiliary notch (45) that connects to the limiting groove.

5. The sampling tube according to claim 4, characterized in that: The connecting sleeve (3) is provided with an ejector assembly (6), which includes an ejector rod (61) and an ejector flange (62). The connecting sleeve (3) has an ejector groove (33) which communicates with the sliding groove (32). The ejector rod (61) is rotatably connected in the ejector groove (33). The ejector rod (61) is L-shaped. One end of the ejector rod (61) extends to the outside of the ejector groove (33), and the other end is connected to an abutment block. The ejector flange (62) is connected to the abutment block and abuts against the auxiliary notch (45).

6. The sampling tube according to claim 1, characterized in that: The connecting sleeve (3) is provided with a threaded section, and a sealing strip is wound on the threaded section. The connecting sleeve (3) is threadedly fitted at the sampling port (13), and the sealing strip is located between the connecting sleeve (3) and the sampling port (13).

7. The sampling tube according to claim 1, characterized in that: The cover plate (4) is provided with anti-slip texture (42).

8. The sampling tube according to claim 1, characterized in that: A connecting assembly (2) is provided on the tube body (1). The connecting assembly (2) includes a connecting convex ring (21) and a clamping cylinder (22). The connecting convex ring (21) is connected to the liquid inlet end (11) of the tube body (1). The cross-section of the connecting convex ring (21) is triangular. The thickness of the connecting convex ring (21) gradually increases from the liquid inlet end (11) of the tube body (1) to the sampling port (13) as the reference direction. The clamping cylinder (22) is threadedly fitted to the liquid inlet end (11) of the tube body (1) and is located between the connecting convex ring (21) and the sampling port (13).

Images