CN210774862U

CN210774862U - Medical examination sampling tube

Info

Publication number: CN210774862U
Application number: CN201921407161.7U
Authority: CN
Inventors: 张宗超; 王博; 李丽妍; 王大海
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-06-16
Anticipated expiration: 2029-08-28

Abstract

The utility model relates to the technical field of medical examination equipment, in particular to a medical examination sampling tube, which comprises a sampling outer tube, a top cover, a first liquid inlet head, an external storage cavity, a first liquid inlet head, a second rubber plug and a second pull rod, and also comprises a sampling inner tube sleeved inside the sampling outer tube, an internal storage cavity, a second liquid inlet head, a first rubber plug and a first pull rod, wherein the side walls of the first pull rod and the second pull rod are respectively provided with a plurality of limit grooves extending along the length direction, the top cover is provided with a limit block which is matched with the limit grooves and is made of hard materials, the limit block is fixedly clamped into the limit grooves to form a limit fixing mechanism for the first pull rod and the second pull rod, two groups of samples with different quantities in the same environmental state can be extracted at one time, the comparison and examination are convenient, the positions of the first pull rod and the second pull rod can be fixed after the sampling is completed, prevent moving, avoid the sample to be extruded and influence the inspection result, and pollute the purity of original sample.

Description

Medical examination sampling tube

Technical Field

The utility model relates to a medical check-out set technical field, concretely relates to medical science inspection sampling tube.

Background

At present, often will sample liquid in the medical science inspection field, the sampling device who commonly uses comprises glass straw and the gasbag of installing in the glass straw, and this kind of sampling device is at the in-process of drawing the sample, solution is easily drawn into in the gasbag, the contrast inspection will be carried out usually when the inspection simultaneously, need gather at least two sets of data that are in the same environmental condition and carry out the contrast experiment, current gasbag formula sampling device only can draw a set of sample at every turn, need draw in grades, not only spend time, still can prolong the exposure time of sample in the air, pollute the sample and the original sample of drawing, influence the inspection result.

Chinese patent application publication No. CN203468694U, in the marrow extraction device for blood internal medicine that publication date is 2014.03.12, hydraulic piston has been set up, be provided with push rod and straw in hydraulic piston, through set up the straw in the pjncture needle, can once only accomplish the operation of absorbing marrow liquid, but push rod and the piston design that adopts in this patent application, because there is not limited fixed knot structure to the push rod, in whole actual operation, very easily extrude the push rod and then extrude hydraulic piston unintentionally, the sample is extruded in the extraction device and is caused the sample volume to reduce, lead to the inaccuracy of follow-up inspection, and if absorb the sample in the extraction device and be extruded in the former sample, then can cause the pollution of whole sample.

SUMMERY OF THE UTILITY MODEL

The utility model provides a medical science inspection sampling tube aims at solving current medical science inspection draw-off gear and is extruded easily and make the sample extruded after extracting the sample, leads to inaccurate, the original sample of pollution of follow-up inspection to and only can extract a set of sample at every turn, spend time and pollute the sample easily, influence the inspection result.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: including sample outer tube, fixed cup joint top cap, first liquid inlet head, the outside storage chamber outside the outer tube of taking a sample, first liquid inlet head establishes the tip of outer tube of taking a sample and with the outside storage chamber intercommunication, the outside storage intracavity slides and cup joints the second rubber buffer rather than the looks adaptation, fixedly connected with runs through on the second rubber buffer the second pull rod of top cap, still includes the sample inner tube, the outer tube cup joint of taking a sample in the outside of sample inner tube, the outside storage chamber is located between sample outer tube and the sample inner tube, the inside cavity of sample inner tube is the inside storage chamber, and the second liquid inlet head establishes the tip of sample inner tube and with the inside storage chamber intercommunication, slide and cup joint the first rubber buffer rather than the looks adaptation in the sample inner tube, the sample inner tube runs through the second rubber buffer, fixedly connected with runs through on the first rubber buffer the first pull rod of top cap, the limiting groove that a plurality of extended along length direction is seted up respectively on the lateral wall of first pull rod with the second pull rod, be equipped with on the top cap with limiting groove matched with and the stopper of making by hard material, the fixed block of stopper goes into the limiting groove is formed right the spacing fixed establishment of first pull rod with the second pull rod.

Furthermore, the number of the limiting blocks is two, a vertical first rotating shaft is fixedly arranged at the middle position of the top cover between the first pull rod and the second pull rod, the two limiting blocks are symmetrically arranged on two sides of the first rotating shaft, and each limiting block is rotatably connected with the first rotating shaft.

Furthermore, the first rotating shaft is of an inverted T shape, two symmetrical grooves are formed in one end, close to the top cover, of the first rotating shaft, a second rotating shaft is rotatably connected between the upper wall and the lower wall, opposite to the grooves, of each groove, the second rotating shaft is of an inverted T shape, and one end, far away from the limiting groove, of each limiting block is rotatably sleeved outside each corresponding second rotating shaft.

Furthermore, each recess is "L" type, and each stopper can rotate in and out corresponding each recess.

Furthermore, the stopper is one, be equipped with the spout on the top cap, the spout is located middle part position department between first pull rod and the second pull rod, and the perpendicular to the stopper, the stopper is close to one side of top cap the top cap protrusion forms the slider, the slider embedding in the spout and can slide in it, the both ends of stopper are fixed block income respectively on the first pull rod with spacing groove on the second pull rod.

Furthermore, elastic gaskets are fixedly arranged on two opposite surfaces of the limiting block, which are in contact with the limiting groove, and the vertical section of each elastic gasket is wedge-shaped.

Furthermore, the outer wall of the sampling inner tube and the outer wall of the sampling outer tube are provided with scale marks, and the sampling outer tube is made of transparent materials.

The utility model provides a medical science inspection sampling tube compares with current inspection sampling tube, possesses following beneficial effect:

(1) the utility model discloses a set up the sample outer tube, the sample inner tube, first rubber buffer, the second rubber buffer, first pull rod, the second pull rod, can once extract the sample in the same environmental condition of being in of two sets of not same volume, conveniently contrast the inspection, the equidistant spacing groove of a plurality of on first pull rod and the second pull rod set up and the design of spacing piece on the top cap, can carry out spacing fixed to first pull rod and second pull rod, prevent to accomplish to make first pull rod and second pull rod slide along sample inner tube and sample outer tube respectively because of external force extrusion after the sample, lead to the sample to be extruded and make the sample size reduce, influence the inspection result, also avoid the sample of extruding to sneak into in the original sample simultaneously and pollute the purity of whole sample.

(2) The sliding groove and the sliding block are convenient for the sliding of the limiting block, and the limiting and the contact fixing are convenient.

(3) The arrangement of the first rotating shaft, the second rotating shaft and the groove facilitates the respective limiting and fixing of the first pull rod and the second pull rod, the first pull rod and the second pull rod are also conveniently released and fixed, and the samples are more conveniently extracted and extruded respectively in actual operation.

(4) The wedge-shaped design of the elastic gasket increases the friction force between the end part of the limiting block and the limiting groove along the direction perpendicular to the length direction of the limiting block, the limiting block is prevented from sliding out of the limiting groove, and the limiting and fixing effect is enhanced.

Drawings

Fig. 1 is a longitudinal sectional view of a first embodiment of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a longitudinal sectional view of a second embodiment of the present invention.

Fig. 4 is an enlarged view at B in fig. 2.

Fig. 5 is an enlarged side view of the stopper and the resilient pad in the first and second embodiments of the present invention.

Fig. 6 is a front enlarged view of the first and second rotating shafts according to the second embodiment of the present invention.

In the figure: the sampling device comprises an outer sampling tube 1, an inner sampling tube 2, a top cover 3, a first liquid inlet head 4, a second liquid inlet head 5, an external storage cavity 6, an internal storage cavity 7, a first rubber plug 8, a second rubber plug 9, a first pull rod 10, a second pull rod 11, a limiting groove 12, a limiting block 13, a first rotating shaft 14, a groove 15, a second rotating shaft 16, a sliding groove 17, a sliding block 18 and an elastic gasket 19.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the embodiments.

FIGS. 1, 2 and 5 are schematic structural views of a first embodiment of the present invention, a medical examination sampling tube comprises an outer sampling tube 1, an inner sampling tube 2, a top cap 3, a first liquid inlet 4 and a second liquid inlet 5, wherein the outer sampling tube 1 and the inner sampling tube 2 are both hollow structures, the top cap 3 and the outer sampling tube 1 are integrally formed and fixedly sleeved outside one end of the outer sampling tube 1 away from a sample, the outer sampling tube 1 is fixedly sleeved outside the inner sampling tube 2, the outer sampling tube 1 and one end of the inner sampling tube 2 close to the sample are flush and integrally structured, a portion between the outer sampling tube 1 and the inner sampling tube 2 is an external storage cavity 6 for storing the sample extracted into the outer sampling tube through the first liquid inlet 4, an internal cavity of the inner sampling tube 2 is an internal storage cavity 7 for storing the sample extracted into the inner sampling tube through the second liquid inlet 5, the first liquid inlet 4 is disposed at an end of the outer sampling tube 1 close to the sample and is communicated with the external storage cavity 6, the second liquid inlet head 5 is arranged at the end part of the sampling inner tube 2 close to the sample and is communicated with the inner storage cavity 7, preferably, the first liquid inlet head 4 is integrally formed with the sampling outer tube 1, the second liquid inlet head 5 is integrally formed with the sampling inner tube 2, a first rubber plug 8 is sleeved in the sampling inner tube 2 in a sliding way, the first rubber plug 8 is in a cylinder shape, the outer diameter of the first rubber plug is matched with the inner diameter of the sampling inner tube 2, and a certain gap is arranged between the first rubber plug and the sampling outer tube, but the gap cannot be too large, so that the first rubber plug 8 can slide up and down along the inner wall of the sampling inner tube 2 under the condition of external thrust or pulling force, and the second rubber plug 9 can not slide relative to each other when no external acting force is applied, the second rubber plug 9 matched with the second rubber plug is sleeved in the outer storage cavity 6 in a sliding way, the shape of the second rubber plug 9 and the mutual matching relation, no further details are given here, the sampling inner tube 2 penetrates through the second rubber stopper 9, the first rubber stopper 8 is connected with the first pull rod 10 penetrating through the top cap 3, the connection mode between the first rubber stopper and the second rubber stopper adopts the fixing mode of the rubber stopper and the push rod in the medical conventional syringe, the first pull rod 10 is fixedly sleeved inside the first rubber stopper 8, the second pull rod 11 penetrating through the top cap 3 and connected to the second rubber stopper 9 is fixedly connected in the same mode, the second pull rod 11 is located on one side of the first pull rod 10, the two are parallel to each other, and are both in a rectangular parallelepiped shape, and may also be in a cylindrical shape or other shapes.

A plurality of limiting grooves 12 are respectively arranged on the outer peripheral surfaces of the first pull rod 10 and the second pull rod 11, the limiting grooves 12 are positioned on the opposite side surfaces of the first pull rod 10 and the second pull rod 11 and are symmetrically arranged relative to a vertical central axis of a horizontal connecting line of the first pull rod 10 and the second pull rod 11, each limiting groove 12 extends along the length direction of the first pull rod 10 and the second pull rod 11, each limiting groove 12 is arranged at equal intervals, the limiting grooves 12 are in a square shape, can also be in a cuboid shape or other shapes, a limiting block 13 is arranged on the top cover 3, the shape of the end part of the limiting block 13 clamped into the limiting groove 12 is matched with the structure of the limiting groove 12, if the limiting groove 12 is in a square shape, the vertical section of the end part of the limiting block 13 is in a square shape, the length of the limiting block 13 is arranged according to the distance between the first pull rod 10 and the second pull rod 11, and the two ends of the limiting groove can be fixedly clamped into the limiting grooves 12 positioned on the two sides of, the limiting block 13 should be made of hard material, such as hard plastic or wood material, along with the up-and-down movement of the first pull rod 10 and the second pull rod 11, each limiting groove 12 also moves up and down, when the sample extracted from the sampling tube reaches the required amount, the first pull rod 10 and the second pull rod 11 are stopped to be pulled, at this time, the limiting block 13 can be clamped in the limiting groove 12 corresponding to the position of the first pull rod 10 and the second pull rod 11, the positions of the first pull rod 10 and the second pull rod 11 are further limited, the limiting block is stopped at the position, and the limiting block cannot move when external force touches the first pull rod 10 and the second pull rod 11.

In this embodiment, the stopper 13 is one, the top cover 3 is provided with a sliding groove 17, the sliding groove 17 is perpendicular to a horizontal connecting line of the first pull rod 10 and the second pull rod 11 and is located at a middle position of the horizontal connecting line, one surface of the stopper 13 contacting the top cover 3 protrudes towards the top cover 3 to form a sliding block 18, the sliding block 18 is embedded into the sliding groove 17 and can slide therein, two ends of the stopper 13 are respectively and fixedly clamped into the limiting grooves 12 located on the first pull rod 10 and the second pull rod 11, in order to improve the friction force between the two ends of the stopper 13 and the corresponding limiting grooves 12 and prevent the stopper 13 from sliding out of the limiting grooves 12, the two opposite surfaces of the two ends of the stopper 13 contacting the limiting grooves 12 are fixedly adhered with elastic gaskets 19, and preferably, the vertical cross section of each elastic gasket 19 is wedge-shaped, and the wedge-shaped elastic gasket 19 is arranged perpendicular to the length direction of the stopper 13, increase stopper 13 tip and spacing groove 12 along the frictional force of perpendicular to stopper 13 length direction, avoid stopper 13 roll-off spacing groove 12, treat that the fixed clamping to first pull rod 10 and second pull rod 11 needs to be relieved, external force pulling stopper 13 makes its both ends shift out spacing groove 12 to slide along spout 17, can not influence and extrude the sample outside and store chamber 6 and inside and store chamber 7.

The outer walls of the sampling inner tube 2 and the sampling outer tube 1 are provided with scale marks (not shown in the figure), and preferably, the sampling inner tube 2 and the sampling outer tube 1 are made of transparent materials, can be made of but not limited to transparent plastics, and can quantitatively extract samples and facilitate scale reading.

Fig. 3-6 are schematic structural diagrams of a second embodiment of the present invention, which is different from the first embodiment in that two stoppers 13 are provided in the embodiment, a vertical first rotating shaft 14 is fixedly inserted into a middle position of the top cover 3 between the first pull rod 10 and the second pull rod 11, the first rotating shaft 14 is an inverted T-shaped, the two stoppers 13 are symmetrically provided at two sides of the first rotating shaft 14, two symmetric grooves 15 are provided at an end of the first rotating shaft 14 close to the top cover 3, a second rotating shaft 16 is rotatably connected between the upper and lower walls of each groove 15, two ends of the second rotating shaft 16 are respectively inserted into the upper and lower walls of each groove 15, two ends of the second rotating shaft 16 are in clearance fit with the grooves 15 to enable the second rotating shaft to rotate in the grooves 15, one end of each stopper 13 far from the stopper groove 12 is rotatably sleeved outside each corresponding second rotating shaft 16, and in this embodiment, each recess 15 is the L type, and each stopper 13 can roll in and roll out each corresponding recess 15, and can hold inside recess 15 when roll in recess 15, and each stopper 13 can fix the block and go into in the spacing groove 12 with the one end of spacing groove 12 contact when roll out recess 15 to make L type recess 15's lateral wall play the fender effect of holding to stopper 13, and the turned angle who prescribes a limit to stopper 13 is 90 degrees, avoids stopper 13 to rotate wantonly and influences fixed block effect.

In this embodiment, can carry out spacing fixed to first pull rod 10 and second pull rod 11 respectively, also can remove fixedly to first pull rod 10 and second pull rod 11 respectively, make things convenient for respectively extraction and extrusion to the sample in the actual operation more.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Medical science inspection sampling tube, cup joint including sample outer tube (1), fixed top cap (3), first liquid head (4), the outside chamber (6) of storing of taking a sample outer tube (1), first liquid head (4) of advancing establish the tip of sample outer tube (1) and with outside chamber (6) intercommunication of storing, outside store and slide in chamber (6) and cup joint second rubber buffer (9) rather than the looks adaptation, fixedly connected with runs through on second rubber buffer (9) second pull rod (11) of top cap (3), its characterized in that: still include sample inner tube (2), sample outer tube (1) cup joints the outside of sample inner tube (2), outside storage chamber (6) are located between sample outer tube (1) and sample inner tube (2), the inside cavity of sample inner tube (2) is inside storage chamber (7), second liquid inlet head (5) establish the tip of sample inner tube (2) and with inside storage chamber (7) intercommunication, slide in sample inner tube (2) and cup joint first rubber buffer (8) rather than the looks adaptation, sample inner tube (2) run through second rubber buffer (9), fixedly connected with runs through first pull rod (10) of top cap (3) on first rubber buffer (8), set up a plurality of spacing groove (12) that extend along length direction respectively on first pull rod (10) and the lateral wall of second pull rod (11), the top cover (3) is provided with a limiting block (13) which is matched with the limiting groove (12) and is made of hard materials, and the limiting block (13) is fixedly clamped into the limiting groove (12) to form a limiting and fixing mechanism for the first pull rod (10) and the second pull rod (11).

2. A medical test coupon as defined in claim 1, wherein: the number of the limiting blocks (13) is two, the top cover (3) is located a vertical first rotating shaft (14) is fixedly arranged at the middle position between the first pull rod (10) and the second pull rod (11), the two limiting blocks (13) are symmetrically arranged on two sides of the first rotating shaft (14), and the limiting blocks (13) are rotatably connected with the first rotating shaft (14).

3. A medical test coupon as defined in claim 2, wherein: the first rotating shaft (14) is of an inverted T shape, two symmetrical grooves (15) are formed in one end, close to the top cover (3), of the first rotating shaft (14), second rotating shafts (16) are connected between the upper wall and the lower wall, opposite to the grooves (15), of each groove in a rotating mode, and one end, far away from the limiting groove (12), of each limiting block (13) is rotatably sleeved outside the corresponding second rotating shafts (16).

4. A medical test coupon as defined in claim 3, wherein: each groove (15) is L-shaped, and each limiting block (13) can rotate into and out of the corresponding groove (15).

5. A medical test coupon as defined in claim 1, wherein: stopper (13) are one, be equipped with spout (17) on top cap (3), spout (17) are located middle part position department between first pull rod (10) and second pull rod (11), and the perpendicular to stopper (13), stopper (13) are close to the one side of top cap (3) protrusion forms slider (18), slider (18) embedding in spout (17) and can slide in it, the both ends of stopper (13) are fixed block respectively and are gone into on first pull rod (10) with spacing groove (12) on second pull rod (11).

6. A medical test coupon as defined in any one of claims 1-5, wherein: elastic gaskets (19) are fixedly arranged on two opposite surfaces of the limiting block (13) contacted with the limiting groove (12), and the vertical section of each elastic gasket (19) is wedge-shaped.

7. A medical test coupon as defined in claim 6, wherein: the sampling inner tube (2) with all be equipped with the scale mark on the outer wall of sampling outer tube (1), sampling outer tube (1) adopts transparent material to make.