CN210138157U

CN210138157U - Tissue fluid puncture sampling device

Info

Publication number: CN210138157U
Application number: CN201920302494.7U
Authority: CN
Inventors: 施健; 杨扬
Original assignee: Nantong First Peoples Hospital
Current assignee: Nantong First Peoples Hospital
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-03-13
Anticipated expiration: 2029-03-11

Abstract

The utility model relates to the technical field of machinery, specifically be a tissue fluid puncture sampling device, including the sampling tube, the inside of sampling tube is provided with power device, and the front end threaded connection of sampling tube has the protecgulum, and the one end of protecgulum is pegged graft and is had the syringe needle, and the one end of syringe needle has cup jointed the sample bag, and the department is equipped with the baffle in the middle of the inside of sampling tube, and the thread groove has been seted up to the inner wall of sampling tube, and power device includes the motor, and the one end welding of motor has the pull rod, and the weld end below of pull rod is equipped with the. The utility model discloses when extracting tissue fluid, make it get into in the sample bag, take out sample bag again and sheathe in bag cap, alright put into wait to examine the district, it can not contact the sampling tube, avoids causing the waste, through pressing switch starter motor, makes the lug slide along the thread groove, drives the piston displacement, makes the inside negative pressure that produces of sampling tube front end, makes tissue fluid get into in the sample bag, realizes taking a sample, and its sample is simple and convenient laborsaving.

Description

Tissue fluid puncture sampling device

Technical Field

The utility model relates to the technical field of machinery, specifically a tissue fluid puncture sampling device.

Background

Interstitial fluid is the fluid that exists between cells, also known as interstitial fluid. The tissue fluid is a liquid environment in which ordinary cells live directly and can exchange substances with the cells. Need extract the sample in clinical and examine, in the injection test tube after the extraction of ordinary syringe for the syringe abandonment causes the waste, and long-time manual extraction makes unsuitable reactions such as finger rigidity and arm acid swelling moreover. In view of this, we propose a tissue fluid puncture sampling device.

Disclosure of Invention

An object of the utility model is to provide a tissue fluid puncture sampling device to abandonment produces the extravagant cost after the syringe extraction that proposes in solving above-mentioned background art, the problem of the uncomfortable reaction is easily caused in the manual extraction.

In order to achieve the above object, the utility model provides a following technical scheme:

a tissue fluid puncture sampling device comprises a sampling tube, wherein a power device is arranged inside the sampling tube, the rear end of the sampling tube is in threaded connection with a rear cover, a switch is fixed on the bottom side of the sampling tube through a screw, the front end of the sampling tube is in threaded connection with a front cover, one end of the front cover is inserted with a needle head, one end of the needle head is sleeved with a sampling bag, the top side of the sampling tube is provided with an air hole, the middle part inside the sampling tube is provided with a partition plate, one side of the partition plate, which is positioned on the inner wall of the sampling tube, is provided with a thread groove, the inner side of the sampling tube is symmetrically provided with sliding grooves, the power device comprises a motor, one end of the motor is welded with a pull rod, a convex block is arranged below the welding end of the pull rod, the convex block is in sliding connection with the thread groove, the other end of the pull, the outer sides of the two ends of the sliding seat are provided with sliding blocks, and the sliding blocks are in sliding connection with the sliding grooves.

Preferably, the sampling tube is tubular and the inside of the sampling tube is divided into two separated spaces by the partition.

Preferably, a lithium battery is bonded inside the rear cover, and the lithium battery, the switch and the motor are electrically connected in sequence through a wire.

Preferably, the distance between the air hole and the front end of the sampling tube is equal to the stroke of the piston.

Preferably, the pull rod is inserted into the partition plate.

Preferably, the outer diameter of the plunger is larger than the inner diameter of the sampling tube, and the plunger is slidably connected with the inner part of the sampling tube.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this tissue fluid puncture sampling device through having set up the sample bag in that the sampling tube is inside, when extracting tissue fluid, makes it get into the sample bag in, unscrews the protecgulum, takes out the sample bag again and sheathes the bag cap, alright put into wait to examine the district, and it can not contact the sampling tube, avoids causing the waste to medical cost has been practiced thrift.

2. This interstitial fluid puncture sampling device through having set up power device in the sampling tube, presses the switch, makes the motor circular telegram, just drives the pull rod rotation, and its lug slides along the thread groove for the motor displacement drives the piston displacement, makes the inside negative pressure that produces of sampling tube front end, makes interstitial fluid get into in the sample bag, realizes taking a sample, and its sample is simple and convenient laborsaving.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the sampling tube of the present invention;

FIG. 3 is a schematic view of the structure of the sampling bag of the present invention;

FIG. 4 is a schematic view of the internal assembly structure of the sampling tube of the present invention;

FIG. 5 is a full sectional view of the sampling tube of the present invention;

fig. 6 is an exploded view of the power unit of the present invention;

fig. 7 is a circuit diagram of the lithium battery, the switch and the motor of the present invention.

In the figure: 1. a sampling tube; 10. a rear cover; 100. a lithium battery; 11. a switch; 12. a front cover; 13. a needle head; 14. a sampling bag; 140. a bag cap; 15. air holes; 16. a partition plate; 17. a thread groove; 18. a chute; 2. a power plant; 20. a motor; 21. a pull rod; 210. a bump; 22. a piston; 23. a slide base; 230. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention, and in the description of the present invention, "a plurality" means two or more unless there is an explicit specific limitation.

Example 1

The utility model provides a tissue fluid puncture sampling device, in order to save medical cost, the utility model discloses the people has set up sampling tube 1, as an preferred embodiment, as shown in figure 1, fig. 2 and 3, including sampling tube 1, the inside of sampling tube 1 is provided with power device 2, the rear end threaded connection of sampling tube 1 has back lid 10, there is switch 11 bottom side of sampling tube 1 through the fix with screw, the front end threaded connection of sampling tube 1 has protecgulum 12, the one end of protecgulum 12 is pegged graft and is had syringe needle 13, sample bag 14 has been cup jointed to the one end of syringe needle 13, gas pocket 15 has been seted up to the top side of sampling tube 1, department is equipped with baffle 16 in the middle of the inside of sampling tube 1, threaded groove 17 has been seted up to the one side of baffle 16 and the inner wall that is located sampling tube 1, spout 18 has been seted.

In this embodiment, the sampling tube 1 is made of PP, i.e. polypropylene, which is light, tough, rigid, and durable, and the sampling bag 14 is made of PE and is provided with a bag cap 140, and the top opening is a hard tubular opening, which is convenient for handling and sealing with the bag cap 140.

Specifically, the sampling tube 1 is tubular and the interior of the sampling tube is divided into two isolated spaces by the partition 16, a sealing ring is arranged between the front cover 12 and the front end of the sampling tube 1 to seal the interior of the sampling tube, and negative pressure is formed in the interior of the sampling tube when the piston 22 moves.

Further, a lithium battery 100 is bonded inside the rear cover 10, the lithium battery 100, the switch 11 and the motor 20 are electrically connected in sequence through a conducting wire, wherein the switch 11 and the motor 20 are electrically connected in a forward and reverse direction, so that the motor 20 can rotate in the forward and reverse direction, and the piston 22 can extend and retract.

It should be noted that, the lithium battery 100 of the present invention is a cylindrical lithium battery with model number HTC1320, which is produced by shenzhen shenghua region fucheng hongjie electronic factory, and its matching circuit and power supply can also be provided by the manufacturer; furthermore, the present invention relates to the circuit, the electronic components and the module being prior art, and can be implemented by those skilled in the art without extra description, and the protection of the present invention does not relate to the improvement of the structure and the working principle of the lithium battery 100.

It is worth explaining that, the utility model relates to a positive and negative switch produced by Shenzhen dragon sentry region Wanlongda electronic tool business, the matched circuit and power supply of which can be provided by the manufacturer; furthermore, the present invention relates to the circuit, the electronic components and the module being prior art, which can be implemented by those skilled in the art without extra description, and the protection of the present invention does not relate to the improvement of the structure and the working principle of the switch 11.

Example 2

As the utility model discloses a second kind of embodiment, it is convenient in order to extract tissue fluid laborsaving, the utility model discloses the people has set up power device 2, as a preferred embodiment, as shown in fig. 4, fig. 5, fig. 6 and fig. 7, power device 2 includes motor 20, the one end welding of motor 20 has pull rod 21, the welding end below of pull rod 21 is equipped with lug 210, lug 210 and thread groove 17 sliding connection, the other end of pull rod 21 closely bonds has piston 22, the bottom side of motor 20 bonds has slide 23, the both ends outside of slide 23 is equipped with slider 230,

slider

230 and 18 sliding connection of spout.

In this embodiment, the sliding seat 23 is made of PP material, i.e. polypropylene, which is light in weight, good in toughness, rigid in strength, durable in use, and the piston 22 is made of rubber, which has good sealing performance.

Specifically, the distance between the air hole 15 and the front end of the sampling tube 1 is equal to the stroke of the piston 22, so that when the piston 22 moves to the air hole 15, the sampling bag 14 is filled with the tissue fluid, and the air hole 15 is exposed to enter air, thereby preventing the piston 22 from being squeezed back by the atmosphere and causing the tissue fluid of the sampling bag 14 to be squeezed out.

Furthermore, the pull rod 21 is inserted into the partition plate 16, and the partition plate 16 plays a role in guiding and supporting the pull rod 21.

In addition, the outer diameter of the plunger 22 is larger than the inner diameter of the sampling tube 1, and the plunger 22 is slidably coupled to the inside of the sampling tube 1, so that the sealing property is improved.

It should be noted that the present invention relates to a motor 20 which is an X800 type positive and negative rotation motor manufactured by the first cupha technologies ltd, and the circuit and power supply thereof can also be provided by the manufacturer; furthermore, the present invention relates to the circuit, the electronic components and the module which are the prior art, and can be implemented by those skilled in the art without extra description, and the protection of the present invention does not relate to the improvement of the structure and the working principle of the motor 20.

When the tissue fluid puncture sampling device of the utility model is used, the motor 20 is rotated forward by pushing the switch 11 button forward, the driving lug 210 is rotated clockwise in the thread groove 17, the motor 20 is moved forward, namely the sliding block 230 is moved in the sliding groove 18, the piston 22 discharges the air in the front part of the sampling tube 1, the needle 13 is inserted into the tissue, the switch 11 button is pushed backward, the motor 20 is rotated backward, the driving lug 210 is rotated counterclockwise in the thread groove 17, the motor 20 is moved backward, further the piston 22 is moved backward, the front part of the sampling tube 1 forms negative pressure, the tissue fluid enters the sampling bag 14, when the piston 22 is moved to the air hole 15, the sampling bag 14 is filled, the air enters the front part of the sampling tube 1 at the moment, the internal negative pressure disappears, the piston 22 is prevented from retracting, the front cover 12 is unscrewed at the moment, the sampling bag 14 is pulled down, the bag cap 140 is covered on, and the area to be inspected is put in, the device is convenient, labor-saving and sanitary in sampling, and medical cost is saved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a tissue fluid puncture sampling device which characterized in that: the sampling device comprises a sampling tube (1), a power device (2) is arranged inside the sampling tube (1), the rear end of the sampling tube (1) is in threaded connection with a rear cover (10), a switch (11) is fixed on the bottom side of the sampling tube (1) through a screw, the front end of the sampling tube (1) is in threaded connection with a front cover (12), one end of the front cover (12) is inserted with a needle (13), one end of the needle (13) is sleeved with a sampling bag (14), the top side of the sampling tube (1) is provided with an air hole (15), a partition plate (16) is arranged in the middle of the inside of the sampling tube (1), one side of the partition plate (16) is positioned on the inner wall of the sampling tube (1) and is provided with a threaded groove (17), the inner side of the sampling tube (1) is symmetrically provided with a sliding groove (18), the power device (2) comprises a motor (20), one end of the motor (20) is welded with a, a convex block (210) is arranged below the welding end of the pull rod (21), the convex block (210) is in sliding connection with the thread groove (17), a piston (22) is tightly bonded to the other end of the pull rod (21), a sliding seat (23) is bonded to the bottom side of the motor (20), sliding blocks (230) are arranged on the outer sides of the two ends of the sliding seat (23), and the sliding blocks (230) are in sliding connection with the sliding grooves (18).

2. The interstitial fluid puncture sampling device according to claim 1, wherein: the sampling tube (1) is tubular and the inside of the sampling tube is divided into two isolated spaces by the partition plate (16).

3. The interstitial fluid puncture sampling device according to claim 1, wherein: a lithium battery (100) is bonded inside the rear cover (10), and the lithium battery (100), the switch (11) and the motor (20) are electrically connected in sequence through a lead.

4. The interstitial fluid puncture sampling device according to claim 1, wherein: the distance between the air hole (15) and the front end of the sampling tube (1) is equal to the stroke of the piston (22).

5. The interstitial fluid puncture sampling device according to claim 1, wherein: the pull rod (21) is inserted into the partition plate (16).

6. The interstitial fluid puncture sampling device according to claim 1, wherein: the external diameter of piston (22) is greater than the internal diameter of sampling tube (1), piston (22) with the inside sliding connection of sampling tube (1).