CN110613463B

CN110613463B - Blood sampling device for neonates

Info

Publication number: CN110613463B
Application number: CN201911035284.7A
Authority: CN
Inventors: 秦伟
Original assignee: Nanjing Childrens Hospital of Nanjing Medical University
Current assignee: Nanjing Childrens Hospital of Nanjing Medical University
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2021-11-30
Anticipated expiration: 2039-10-29
Also published as: CN110613463A

Abstract

The invention discloses a blood sampling device for a newborn, which comprises a hollow cylinder with scales, wherein a rubber plug is plugged at the top end of the hollow cylinder, a piston is installed in the hollow cylinder, a magnet is fixedly installed at the lower end of the piston, the blood sampling device also comprises a clamping seat, the clamping seat comprises a clamping part, a handle and a base, the clamping part is used for clamping the hollow cylinder, a guide rod is installed between the clamping part and the base, a support rod is fixedly installed at the upper end of the base, an adsorption part is fixedly installed at the top end of the support rod, and an electromagnet is fixedly installed in the adsorption part; in the blood sampling process of ration in batches, need not artifical real-time volume of observing piston shift position or empty section of thick bamboo blood volume deliberately, circular telegram the electro-magnet, the electro-magnet adsorbs the magnet of piston lower extreme this moment, realizes piston automatic motion blood sampling, moves to the adsorption site up end until the piston, because the adsorption site is spacing, stop motion stops to the electro-magnet circular telegram this moment, accomplishes empty section of thick bamboo ration blood sampling, realizes automatic accurate ration blood collection.

Description

Blood sampling device for neonates

Technical Field

The invention belongs to the field of blood collection, and particularly relates to a blood collection device for a newborn.

Background

In medicine, after birth, newborns need to be screened, and the screening of the diseases of the newborns refers to a general term for screening hereditary metabolic diseases, congenital endocrine abnormality and certain seriously-damaged hereditary diseases of the newborns by using a quick and sensitive laboratory method in a newborn population, and aims to perform early diagnosis and early treatment on the sick newborns before clinical symptoms are not shown or when the clinical symptoms are slight, prevent the irreversible damage of body tissues and organs and avoid the mental retardation, serious diseases or death of the sick newborns.

When the existing blood sampling device is used for quantitatively sampling blood for a newborn in batches, the moving position of a piston of the blood sampling device or the real-time volume of the blood volume in an empty cylinder needs to be observed manually at each time, or the blood is sampled manually, so that the blood sampling efficiency is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a blood sampling device for a newborn baby, which solves the problem that the blood sampling efficiency is reduced because the moving position of a piston or the real-time volume of the blood volume in an empty cylinder needs to be observed manually and deliberately or blood sampling needs to be carried out manually when quantitative blood sampling is carried out in the prior art.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a blood sampling device for neonate, is including the empty section of thick bamboo that has the scale, and the empty section of thick bamboo is transparent and both ends are open, and empty section of thick bamboo top is filled with the plug, installs along the gliding piston of empty section of thick bamboo in the empty section of thick bamboo, piston lower extreme fixed mounting has magnet.

The blood sampling device still includes the grip slipper, the grip slipper includes the clamping part, handle and base, clamping part one side fixed mounting has the handle, handle lower extreme one side fixed mounting has the base, wherein the clamping part is used for the centre gripping empty section of thick bamboo, fixed mounting has the motor on the clamping part, motor output end fixed mounting has the threaded rod that has the external screw thread, the threaded rod other end rotates with the base to be connected, install the guide arm between clamping part and the base, wherein the guide arm both ends respectively with clamping part and base fixed connection, base upper end fixed mounting has the bracing piece, bracing piece top fixed mounting has the adsorption part, wherein fixed mounting has the electro-magnet in the adsorption part.

The threaded rod is provided with a supporting part in threaded fit connection, wherein the supporting part is in sliding connection with the guide rod, and when the hollow cylinder is clamped on the clamping part, the lower end face of the hollow cylinder is attached to the upper end face of the supporting part.

Furthermore, the middle part of the support rod is provided with a channel communicated with the outside.

Further, blood sampling device includes the blood taking needle of vein, and during the use, the tail needle of blood taking needle one end pierces in the plug gets into empty section of thick bamboo, and the blood taking needle of the blood taking needle other end pierces the blood vessel.

Further, the needle tube of the vein blood taking needle close to one end of the blood taking needle comprises a bending part, and when the bending part is pulled by external force, the cavity inside the bending part is enlarged due to the deformation cavity.

The invention has the beneficial effects that:

1. according to the invention, the electromagnet is electrified, the electromagnet adsorbs the magnet at the lower end of the piston at the moment, so that the automatic movement blood sampling of the piston is realized until the piston moves to the upper end face of the adsorption part, the movement is stopped due to the limit of the adsorption part, and the electrification of the electromagnet is stopped at the moment, so that the quantitative blood sampling of an empty cylinder is completed;

2. when the blood taking needle punctured into the blood vessel vein blood taking needle is required to be drawn out after the blood taking is finished, the bending part is pulled in the drawing process, so that the needle tip of the blood taking needle is prevented from dripping blood, and the pollution caused by residual blood dripping of the needle tip is avoided.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view showing the overall construction of a blood collecting device for a newborn infant of the present invention;

fig. 2 is a perspective cross-sectional view of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a blood sampling device for neonates comprises a hollow cylinder 1 with scales, wherein the hollow cylinder 1 is transparent and has two open ends, a rubber plug 2 is plugged at the top end of the hollow cylinder 1, a piston 3 sliding along the hollow cylinder 1 is installed in the hollow cylinder 1, and a magnet 31 is fixedly installed at the lower end of the piston 3; the initial position of the lower end of the piston 3 corresponds to the scale zero position of the empty cylinder 1, when the blood sampling device is used, a tail needle at one end of the vein blood taking needle 4 penetrates into the rubber plug 2 and enters the empty cylinder 1, a blood taking needle at the other end of the vein blood taking needle 4 penetrates into a blood vessel, and the piston 3 is moved to realize blood sampling of the empty cylinder 1; adopt vein blood taking needle 4 at first in being convenient for utilize the tail needle of vein blood taking needle 4 to pierce an empty section of thick bamboo 1 simultaneously, secondly for the direct external blood taking needle of a traditional empty section of thick bamboo 1, be convenient for adjust the angle of piercing of blood taking needle, use better nimble.

The blood sampling device further comprises a clamping seat 5, the clamping seat 5 comprises a clamping part 51, a handle 52 and a base 53, the handle 52 is fixedly installed on one side of the clamping part 51, the base 53 is fixedly installed on one side of the lower end of the handle 52, the clamping part 51 is used for clamping the empty tube 1, the motor 6 is fixedly installed on the clamping part 51, a threaded rod 61 with an external thread is fixedly installed at the output end of the motor 6, the other end of the threaded rod 61 is rotatably connected with the base 53, a guide rod 62 is installed between the clamping part 51 and the base 53, two ends of the guide rod 62 are respectively fixedly connected with the clamping part 51 and the base 53, a support rod 7 is fixedly installed at the upper end of the base 53, an adsorption part 71 is fixedly installed at the top end of the support rod 7, and an electromagnet is fixedly installed in the adsorption part 71; when the blood sampling device is used, the electromagnet is electrified, and at the moment, the electromagnet adsorbs the magnet 31 at the lower end of the piston 3, so that the automatic movement of the piston 3 is realized for blood sampling.

The middle part of the support rod 7 is provided with a channel communicated with the outside, and the electromagnet is wired through the channel to realize the electrification of the electromagnet.

The threaded rod 61 is provided with a supporting part 8 which is in threaded fit connection, wherein the supporting part 8 is in sliding connection with the guide rod 62, and when the hollow cylinder 1 is clamped on the clamping part 51, the lower end face of the hollow cylinder 1 is attached to the upper end face of the supporting part 8; when the blood sampling device is used, the motor 6 is started, the output end of the motor 6 drives the threaded rod 61 to rotate at the moment, the supporting part 8 moves along the guide rod 62, the position of the supporting part 8 is further adjusted, when the empty cylinder 1 is clamped on the clamping part 51, the upper end face of the adsorption part 71 corresponds to the scale on the empty cylinder 1, the scale on the adsorption part 71 corresponding to the empty cylinder 1 is the volume to be sampled, the electromagnet is electrified, the electromagnet adsorbs the magnet 31 at the lower end of the piston 3 at the moment, automatic movement of the piston 3 is realized, blood sampling is carried out until the piston 3 moves to the upper end face of the adsorption part 71, and the adsorption part 71 stops moving due to limitation, the electromagnet is stopped to be electrified at the moment, and quantitative blood sampling of the empty cylinder 1 is completed.

The needle tube of the venous blood taking needle 4 close to one end of the blood taking needle comprises a bent part 41, and when the bent part 41 is pulled by external force, the internal cavity of the bent part 41 is enlarged due to the deformation of the cavity; when the blood taking needle is used, after blood taking is finished, when the blood taking needle punctured into the blood vessel vein blood taking needle 4 needs to be drawn out, the bending part 41 is pulled in the drawing process, the inner cavity of the bending part 41 is enlarged, the residual blood of the needle tip of the blood taking needle is absorbed, and the blood dripping of the needle tip of the blood taking needle 4 is prevented.

The working principle is as follows: aiming at the batch quantitative blood collection process, a handle 52 is manually held, a supporting part 8 is adjusted to a quantitative position to be collected, when an empty cylinder 1 is clamped on a clamping part 51, a tail needle at one end of a vein blood collection needle 4 penetrates into a rubber plug 2 and enters the empty cylinder 1, a blood collection needle at the other end of the vein blood collection needle 4 penetrates into a blood vessel, an electromagnet is electrified, the electromagnet adsorbs a magnet 31 at the lower end of a piston 3 at the moment, the piston 3 automatically moves to collect blood until the piston 3 moves to the upper end face of an adsorption part 71, the adsorption part 71 stops moving due to limitation, and the electromagnet is stopped being electrified at the moment, so that the quantitative blood collection of the empty cylinder 1 is completed, and in the process, the moving position of the piston 3 or the real-time volume of the blood volume in the empty cylinder 1 does not need to be observed manually, so that the automatic accurate quantitative blood collection is realized;

when the blood sampling is finished and the blood taking needle punctured into the blood vessel vein blood taking needle 4 needs to be drawn out, the bending part 41 is pulled in the drawing process, so that the blood dripping of the needle tip of the blood taking needle 4 is prevented, and the pollution caused by the residual blood dripping of the needle tip is avoided.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A blood sampling device for a newborn comprises a hollow cylinder (1) with scales, wherein the hollow cylinder (1) is transparent, two ends of the hollow cylinder are open, a rubber plug (2) is plugged at the top end of the hollow cylinder (1), a piston (3) sliding along the hollow cylinder (1) is installed in the hollow cylinder (1), and the blood sampling device is characterized in that a magnet (31) is fixedly installed at the lower end of the piston (3);

the blood sampling device also comprises a clamping seat (5), the clamping seat (5) comprises a clamping part (51), a handle (52) and a base (53), the handle (52) is fixedly arranged on one side of the clamping part (51), the base (53) is fixedly arranged on one side of the lower end of the handle (52), wherein the clamping part (51) is used for clamping the hollow cylinder (1), the clamping part (51) is fixedly provided with a motor (6), the output end of the motor (6) is fixedly provided with a threaded rod (61) with an external thread, the other end of the threaded rod (61) is rotatably connected with the base (53), a guide rod (62) is arranged between the clamping part (51) and the base (53), the two ends of the guide rod (62) are respectively fixedly connected with the clamping part (51) and the base (53), the upper end of the base (53) is fixedly provided with a support rod (7), the top end of the support rod (7) is fixedly provided with an adsorption part (71), and an electromagnet is fixedly arranged in the adsorption part (71);

the threaded rod (61) is provided with a supporting part (8) in threaded fit connection, the supporting part (8) is in sliding connection with the guide rod (62), and when the hollow cylinder (1) is clamped on the clamping part (51), the lower end face of the hollow cylinder (1) is attached to the upper end face of the supporting part (8);

the blood sampling device comprises a vein blood taking needle (4), when the blood sampling device is used, a tail needle at one end of the vein blood taking needle (4) penetrates a rubber plug (2) to enter an empty cylinder (1), and a blood taking needle at the other end of the vein blood taking needle (4) penetrates a blood vessel.

2. A blood collection device for neonates according to claim 1, characterized in that the support bar (7) is provided with a passage in the middle communicating with the outside.

3. The blood collecting device for the newborn infant as claimed in claim 1, wherein the needle tube of the intravenous blood collecting needle (4) near one end of the blood collecting needle comprises a bent portion (41), and when the bent portion (41) is pulled by an external force, the internal cavity of the bent portion (41) becomes larger due to the deformation of the cavity.