CN219474976U - Disposable sampler - Google Patents

Abstract

The utility model relates to the technical field of samplers, and provides a disposable sampler, which comprises: sampling pipe and internal screw cap, sampling pipe upside outer wall is provided with the screw layer with internal screw cap matched with, the holding chamber has been seted up to the inside of sampling pipe, the downside of internal screw cap is provided with the protection outer tube, when internal screw cap and protection outer tube are close to each other, the support spring compression, make the movable rod move down in the protection outer tube inside, the movable rod move down can drive disposable connecting rod and move down, make disposable cotton head stretch out from protection outer tube bottom, at this moment, can sample the work through disposable connecting rod and disposable cotton head, when removing the pressure to the internal screw cap, the internal screw cap drives the movable rod and moves up, make disposable cotton head get back to the protection outer tube inside again, shelter from the protection through the protection outer tube to disposable cotton head, prevent that disposable cotton head from touching with the foreign object emergence in the transfer process, cause sample pollution.

Description

Disposable sampler

Technical Field

The utility model relates to the technical field of samplers, in particular to a disposable sampler.

Background

Medical devices are an important component of the medical industry for diagnosing, preventing, monitoring, treating or alleviating diseases in a physical manner. Among them, a disposable sampler is one of the commonly used medical instruments for sampling a sample.

In the sampling operation, a preservation solution is pre-placed in the sampler, and then the sampled product is placed in the preservation solution for preservation. When the cotton swab sampling device is used, the cover at the top of the sampler is opened, sampling is carried out by using the cotton swab and the like, then the cotton swab sampled with the product is put into the sampler, and finally the cover is closed. However, in this way, the swab can shake inside the sampler, collide against the inner wall of the sampler, and affect the stability of use.

Through retrieving, the publication number is CN214667717U, and the name is in the patent document of a disposable sampler, including sampling pipe and locking lid, the top of sampling pipe is equipped with the preservation liquid and places the chamber, and through setting up the cylindricality boss that downwardly extending in the cavity of locking lid in this utility model, the cylindricality boss can go deep into the inside of sampling pipe, and simultaneously, the top of cylindricality boss sets up taper groove and spacing hole to set up multiunit slant limiting plate in spacing hole, multiunit slant limiting plate constitutes spacing space, can fix the product top of sampling in spacing space like this, prevents that sampling product from appearing rocking, guarantees stability and the quality of use.

However, in the above scheme, there is still a certain disadvantage that during the process of placing the cotton swab together with the sample in the preservation liquid tube, the cotton swab easily touches the outer wall of the preservation liquid tube or other objects, which can cause pollution of the sample and is not beneficial to subsequent detection and analysis of the sample.

In view of this, the present utility model proposes a single-use sampler.

Disclosure of Invention

The utility model provides a disposable sampler, which solves the problem that in the related art, in the process of placing a cotton swab together with a sample into a preservation liquid pipe, the cotton swab is easy to touch the outer wall of the preservation liquid pipe or other objects, and the sample is polluted.

The technical scheme of the utility model is as follows: a single use sampler comprising: sampling pipe and internal screw cap, sampling pipe upside outer wall is provided with and internal screw cap matched with screw layer, the appearance chamber has been seted up to the inside of sampling pipe, the downside of internal screw cap is provided with the protection outer tube, internal screw cap upper end inner wall rotates and is connected with the revolving stage, fixedly connected with supporting spring between end wall and the protection outer tube upper end wall under the revolving stage, the lower extreme fixedly connected with movable rod of revolving stage, the movable rod slides and runs through inside the protection outer tube, the lower extreme of movable rod is provided with disposable connecting rod, the lower extreme winding of disposable connecting rod has disposable cotton head.

Preferably, the inner cavity is formed in the protective outer tube, a fixed disc is fixedly connected to the inner portion of the inner cavity, and the movable rod is slidably sleeved in the fixed disc.

Preferably, the outer wall of the protective outer tube is fixedly sleeved with a fixing ring, and the outer diameter of the fixing ring is smaller than the diameter of the inner cavity.

Preferably, the rotary table is fixedly connected with the upper end of the rotary table, a rotary groove for the rotary table to rotate is formed in the upper end of the internal thread cap, and the cross section shapes of the rotary groove and the rotary table are right angles.

Preferably, the inner fixing sleeve of the accommodating cavity is provided with a lap joint ring matched with the fixing ring, and the inner diameter of the lap joint ring is larger than the outer diameter of the protective outer tube.

Preferably, the upper end of the disposable connecting rod is fixedly connected with an inserting column, and the lower end of the movable rod is provided with a slot for inserting the inserting column.

Preferably, the disposable cotton head is positioned inside the inner cavity when the supporting spring is in a natural state.

Preferably, the outer wall of the fixing ring is uniformly distributed with anti-slip seams.

Preferably, the side wall of the internal thread cap is provided with an anti-slip layer.

Preferably, the bottom of the accommodating cavity is a conical groove.

The working principle and the beneficial effects are as follows:

1. according to the utility model, when the internal thread cap and the protective outer tube are close to each other, the supporting spring is compressed, so that the movable rod moves downwards in the protective outer tube, the movable rod moves downwards to drive the disposable connecting rod to move downwards, so that the disposable cotton head stretches out of the bottom of the protective outer tube, at the moment, sampling work can be carried out through the disposable connecting rod and the disposable cotton head, when the pressure on the internal thread cap is removed, the internal thread cap drives the movable rod to move upwards, so that the disposable cotton head returns to the inside of the protective outer tube again, shielding protection is carried out on the disposable cotton head through the protective outer tube, the disposable cotton head is prevented from touching with foreign objects in the transferring process, sample pollution is caused, and the safety performance is greatly improved;

2. according to the utility model, when the disposable cotton head is sampled and returns to the inside of the protective outer tube again, the protective outer tube carrying the disposable cotton head is inserted into the sampling tube, the internal thread cap is screwed on the upper end of the sampling tube under the action of the thread layer, the internal thread cap and the rotary table relatively rotate in the screwing process, and the internal thread cap moves downwards to press the movable rod, so that the disposable cotton head extends out of the bottom of the protective outer tube again and is just positioned in the conical groove at the bottom of the containing cavity, is soaked by the solution in the conical groove, is simple to operate and convenient to use, has high sample stability, is not easy to shake in the transportation process, and has high use value.

3. In the utility model, the disposable cotton head and the disposable connecting rod are disposable articles, so that the lower end of the movable rod is convenient to mount and dismount, articles such as the movable rod, the protective outer tube and the fixed disc for moving the disposable cotton head up and down can be made of disposable medical materials (such as PVC), can also be made of stainless steel, can be put into use again through disinfection, can be used for selecting materials according to actual needs, and has good applicability.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic perspective view of a disposable sampler according to the present utility model;

FIG. 2 is a schematic diagram of an assembly structure of a disposable sampler according to the present utility model;

FIG. 3 is a schematic view of the inner structure of the protective outer tube according to the present utility model;

FIG. 4 is a schematic diagram of the working structure of the cotton head according to the present utility model;

FIG. 5 is a schematic view of the internal structure of a sampling tube according to the present utility model;

FIG. 6 is a schematic cross-sectional view of an internally threaded cap according to the present utility model;

FIG. 7 is a schematic diagram of a connecting rod and movable rod connection structure according to the present utility model;

in the figure: 1. an internal thread cap; 101. an anti-slip layer; 2. a sampling tube; 201. a cavity; 202. a thread layer; 3. a protective outer tube; 301. an inner cavity; 4. a movable rod; 5. a fixing ring; 6. a support spring; 7. a fixed plate; 8. a disposable cotton head; 9. a disposable connecting rod; 10. a lap ring; 11. a rotating disc; 12. a rotary table; 13. inserting a column; 14. a slot.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2, 5 and 6, a single-use sampler comprises: sampling pipe 2 and internal thread cap 1, the lateral wall of internal thread cap 1 is provided with skid resistant course 101, sampling pipe 2 upside outer wall is provided with internal thread cap 1 matched with screw thread layer 202, internal thread cap 1 screws up in sampling pipe 2 upper end through screw thread layer 202, the holding chamber 201 has been seted up to the inside of sampling pipe 2, the downside of internal thread cap 1 is provided with protection outer tube 3, internal thread cap 1 upper end inner wall rotates and is connected with revolving stage 12, the upper end fixedly connected with rotary disk 11 of revolving stage 12, the rotary groove that supplies rotary disk 11 to rotate is seted up to internal thread cap 1 upper end inside, the cross-sectional shape of rotary groove and rotary disk 11 is the right angle, under the effect of rotary disk 11, make revolving stage 12 can be stable internal thread cap 1 upper end inside rotate, fixedly connected with supporting spring 6 between end wall and the protection outer tube 3 upper end wall under the revolving stage 12, the lower extreme fixedly connected with movable rod 4 of revolving stage 12, movable rod 4 slides and runs through the protection outer tube 3 inside, when internal thread cap 1 is close to each other with protection outer tube 3, can compress supporting spring 6, make movable rod 4 move down in protection outer tube 3 inside.

Referring to fig. 3, 4 and 7, a disposable connecting rod 9 is disposed at the lower end of the movable rod 4, a disposable cotton head 8 is wound around the lower end of the disposable connecting rod 9, an inserting column 13 is fixedly connected to the upper end of the disposable connecting rod 9, a slot 14 for inserting the inserting column 13 is disposed at the lower end of the movable rod 4, and the disposable connecting rod 9 is conveniently mounted at the lower end of the movable rod 4 under the combined action of the inserting column 13 and the slot 14.

Referring to fig. 3, 4 and 5, an inner cavity 301 is formed in the protective outer tube 3, a fixed disc 7 is fixedly connected to the inner portion of the inner cavity 301, the movable rod 4 is slidably sleeved in the fixed disc 7, and movement of the movable rod 4 is restrained and limited through the fixed disc 7. The fixed cover of outer wall of protecting outer tube 3 is equipped with solid fixed ring 5, and gu fixed ring 5's outer wall evenly distributed has the slipway, improves gu fixed ring 5 outer wall frictional force, and under gu fixed ring 5's effect, when forefinger extrusion gu fixed ring 5, the thumb extrudees internal thread cap 1, conveniently pushes down internal thread cap 1 for internal thread cap 1 is close to each other with protecting outer tube 3, and gu fixed ring 5's external diameter is less than the diameter of inner chamber 301, makes gu fixed ring 5 can the cover locate inside the inner chamber 301. The inside fixed cover of holding chamber 201 is equipped with and fixes ring 5 matched with overlap joint ring 10, and the internal diameter of overlap joint ring 10 is greater than the external diameter of protecting outer tube 3 for protecting outer tube 3 can insert and locate inside overlap joint ring 10, holds the bottom of chamber 201 and is the toper groove, makes even less solution also can have higher liquid level, conveniently soaks disposable cotton head 8.

Referring to fig. 3 and 4, when the supporting spring 6 is in a natural state, the disposable cotton head 8 is positioned inside the inner cavity 301, and when the internal screw cap 1 moves down to compress the supporting spring 6, the disposable cotton head 8 extends out from the bottom of the inner cavity 301, and then the working can be performed.

Working principle and using flow: when carrying out the sample work, carry out the extrusion through the forefinger to solid fixed ring 5, the thumb extrudees internal thread cap 1, push down internal thread cap 1 for internal thread cap 1 is close to each other with protecting outer tube 3, and supporting spring 6 compresses, makes movable rod 4 at protecting the inside downwardly moving of outer tube 3, and movable rod 4's downwardly moving can drive disposable connecting rod 9 and move down, makes disposable cotton head 8 stretch out from protecting outer tube 3 bottom (refer to fig. 3 and 4), at this moment, carries out the sample work through disposable connecting rod 9 and disposable cotton head 8. After the sampling is finished, the internal thread cap 1 is loosened to be pressed down, the supporting spring 6 is utilized to achieve good elastic performance, the internal thread cap 1 drives the movable rod 4 to move upwards to reset, the disposable cotton head 8 returns to the inside of the protective outer tube 3 again, the disposable cotton head 8 is shielded and protected through the protective outer tube 3, and the disposable cotton head 8 is prevented from touching foreign objects in the transferring process, so that sample pollution is caused. Then, the protective outer tube 3 carrying the disposable cotton head 8 is inserted into the sampling tube 2 until the fixing ring 5 is overlapped at the upper end of the lap joint ring 10, at this time, the protective outer tube 3 cannot move downwards continuously, the internal thread cap 1 is screwed on the upper end of the sampling tube 2 under the action of the thread layer 202, the internal thread cap 1 and the rotary table 12 rotate relatively in the screwing process, the internal thread cap 1 moves downwards to press down the movable rod 4, so that the disposable cotton head 8 extends out of the bottom of the protective outer tube 3 again and is just in the conical groove at the bottom of the accommodating cavity 201, and the sampling is completed by soaking the solution in the conical groove.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A single use sampler comprising: sampling pipe (2) and internal thread cap (1), sampling pipe (2) upside outer wall is provided with screw thread layer (202) with internal thread cap (1) matched with, holding chamber (201) have been seted up to the inside of sampling pipe (2), its characterized in that, the downside of internal thread cap (1) is provided with protection outer tube (3), internal thread cap (1) upper end inner wall rotates and is connected with revolving stage (12), fixedly connected with supporting spring (6) between revolving stage (12) lower extreme wall and protection outer tube (3) upper end wall, the lower extreme fixedly connected with movable rod (4) of revolving stage (12), inside movable rod (4) slip run through protection outer tube (3), the lower extreme of movable rod (4) is provided with disposable connecting rod (9), the lower extreme winding of disposable connecting rod (9) has disposable cotton head (8).

2. The disposable sampler according to claim 1, wherein an inner cavity (301) is formed in the protective outer tube (3), a fixed disc (7) is fixedly connected to the inner portion of the inner cavity (301), and the movable rod (4) is slidably sleeved in the fixed disc (7).

3. A single use sampler according to claim 1, characterized in that the outer wall of the protective outer tube (3) is fixedly sleeved with a fixing ring (5), the outer diameter of the fixing ring (5) being smaller than the diameter of the inner cavity (301).

4. The disposable sampler according to claim 1, wherein the rotary table (12) is fixedly connected with a rotary table (11) at the upper end, a rotary groove for the rotary table (11) to rotate is formed in the upper end of the internal thread cap (1), and the cross sections of the rotary groove and the rotary table (11) are right angles.

5. A single use sampler according to claim 1, wherein the interior of the chamber (201) is fixedly sleeved with a snap ring (10) cooperating with the fixation ring (5), the inner diameter of the snap ring (10) being larger than the outer diameter of the protective outer tube (3).

6. The disposable sampler according to claim 1, wherein the upper end of the disposable connecting rod (9) is fixedly connected with a plug (13), and the lower end of the movable rod (4) is provided with a slot (14) for inserting the plug (13).

7. A single use sampler according to claim 1, characterized in that the disposable cotton head (8) is located inside the cavity (301) when the support spring (6) is in its natural state.

8. A single use sampler according to claim 3, characterized in that the outer wall of the stationary ring (5) is evenly distributed with anti-slip slits.

9. A single use sampler according to claim 1, characterized in that the side wall of the internally threaded cap (1) is provided with an anti-slip layer (101).

10. A single use sampler according to claim 1, wherein the bottom of the cavity (201) is a conical groove.