CN210114459U

CN210114459U - Integrated miniature blood collection tube

Info

Publication number: CN210114459U
Application number: CN201920339328.4U
Authority: CN
Inventors: 俸蔚; 李韩; 黄渠思
Original assignee: Second Affiliated Hospital Army Medical University
Current assignee: Second Affiliated Hospital Army Medical University
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2020-02-28
Anticipated expiration: 2029-03-15

Abstract

The utility model relates to a technical field of blood sampling device specifically discloses miniature heparin tube of integral type, including rubber cap and heparin tube, rubber cap and heparin tube fixed connection, be equipped with the valve ball that is used for controlling heparin tube intercommunication state in the heparin tube. According to the scheme, the rubber cap is fixedly connected, so that the scheme is more convenient to use; moreover, the scheme can limit the blood sampling amount, so that the working strength of medical staff is reduced, the working efficiency during blood sampling is improved, the preparation time of the blood sampling is shortened, and the condition that the illness state is delayed when a large number of doctors and patients queue up is avoided.

Description

Integrated miniature blood collection tube

Technical Field

The utility model relates to a blood sampling device specifically discloses the miniature heparin tube of integral type.

Background

The existing micro blood collection tube comprises a pointed glass tube and a rubber cap, and generally, when the micro blood collection tube is used, medical personnel sleeve the rubber cap at the large-caliber end of the pointed glass tube to enable the rubber cap and the pointed glass tube to be in sealing connection, so that the micro blood collection tube is installed. However, due to the improvement of health consciousness of people, not only patients but also some people who perform daily physical examination can arrive at the hospital, so that the inquiry amount of the hospital is very large; for patients, the time is life, and a delay of one second may have irreversible results. Therefore, even the process of respectively taking the pointed glass tube and the rubber cap and then installing the pointed glass tube and the rubber cap is simple and consumes less time, and the efficiency is required to be improved in the special environment of a hospital; secondly, the existing micro blood collection tube stops blood collection when medical personnel see that the blood collection volume reaches a certain amount, and cannot accurately judge whether the collected blood volume meets the requirement, if the required blood volume is collected but the medical personnel do not stop blood collection in time, the collected blood volume is undoubtedly an injury to patients, and for the preservation of blood, the situation that the additive amount for keeping the blood from coagulating is insufficient may also occur; in addition, in the prior art, medical workers need to stare at the blood collection tube all the time in the blood collection process to observe the blood collection amount and judge whether to continue blood collection, so that the working intensity of the medical workers is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a do not need the medical personnel equipment temporarily when using, can confirm the miniature heparin tube of integral type of the upper limit of the volume of taking a blood sample.

In order to achieve the above purpose, the technical scheme of the utility model is that: the integrated micro blood collection tube comprises a rubber cap and a blood collection tube, wherein the rubber cap is fixedly connected with one end of the blood collection tube, the blood collection tube comprises a storage part for storing blood, a conical opening is formed in the storage part, and the end with the smaller diameter is positioned at one end close to the rubber cap; the storage part is internally provided with a valve ball, the diameter of the valve ball is smaller than the maximum diameter of the conical opening, and the diameter of the valve ball is larger than the minimum diameter of the conical opening.

The beneficial effect of this scheme:

(1) when the utility model is used for blood sampling and blood using, the blood sampling tube is not needed to be clamped into the rubber cap manually, so that the operation steps are reduced, the blood sampling efficiency is improved, and meanwhile, the condition that the installation is unstable or the sealing effect is not good, which is easy to appear when medical personnel temporarily install, is avoided, so that the rubber cap and the blood sampling tube are more stably installed, the blood sampling process is quicker, safer and more stable, the scheme can not only reduce the waiting time of patients, thereby reducing the time for the patients to suffer from pains, but also can avoid the condition that the rubber cap falls off from the blood sampling tube in the blood sampling process, thereby reducing the condition that the blood sampling process causes pains to the patients;

(2) according to the scheme, after a certain amount of blood is collected, the valve ball rises into the conical opening under the action of buoyancy to block the conical opening, so that the rubber cap and the blood collection tube are blocked, the situation that blood is continuously drawn after the required amount of blood is collected is avoided, the injury to a patient is reduced, the waste of the blood of the patient due to excessive blood collection is mainly avoided, and the secondary injury to the patient due to the situation that the amount of blood collection is insufficient and secondary blood collection is needed can also be avoided;

3) the utility model discloses a buoyancy of utilization blood makes the valve ball rise and blocks rubber cap and blood sampling tube, does not need medical personnel's artifical blood sampling volume of observing in the blood sampling tube, has reduced medical personnel's working strength.

Further, the blood collection tube is a transparent glass tube.

The transparent glass tube is used, so that medical staff can observe the blood sampling condition, and the condition that the medical staff mistakenly thinks that blood sampling is started and no blood actually flows into the blood sampling tube is avoided; and the medical staff can judge the blood sampling progress and the residual blood sampling time in advance.

Further, the heparin tube still includes the drainage section that is used for introducing blood in the storage portion, and drainage section and rubber cap are located the both ends of storage portion respectively.

This scheme of adoption makes medical personnel can directly begin the blood sampling work, and miniature heparin tube itself has the rubber cap promptly, can provide the negative pressure after the inside air is got rid of in the external force extrusion, and this scheme also can be directly store blood in the storage portion, and the drainage section can directly pull blood in the storage portion to the time of interim equipment when having practiced thrift medical personnel's blood sampling has improved blood sampling efficiency, has reduced medical personnel's intensity of labour.

Furthermore, the drainage section is a cylindrical hollow pipe, and the diameter of the drainage section is smaller than that of the valve ball.

The diameter of the valve ball is larger than that of the drainage section, so that the valve ball can be prevented from being separated from the storage part and leaking; the one end that the storage part is close to the rubber cap adopts the taper mouth that the diameter reduces gradually for the valve ball is close to the in-process of rubber cap under the buoyancy and can slowly cut off the connected state of heparin tube and rubber cap, makes the blood in the storage part reach a certain amount after, and the rubber cap can't provide the effort of drawing blood for the heparin tube promptly.

Further, one side that the valve ball is close to the drainage section is fixed and is equipped with the kickboard, axial sliding connection is followed with the internal perisporium of heparin tube to the kickboard.

The area of contact of valve plate and blood upper surface is about valve ball and blood's area of contact in this scheme to make the valve ball can more accurately must cut off the connected state of heparin tube and rubber cap.

Further, one side that the valve ball is close to the drainage section is fixed and is equipped with the gag lever post, is equipped with the guide way on the internal perisporium of heparin tube, gag lever post and guide way sliding connection.

When blood is collected, the blood collecting tube cannot be kept in a vertical upward state all the time, namely the liquid level of the blood is not parallel to the cross section of the storage part, so that the situation that the valve ball is abutted against the inner peripheral wall of the conical opening at the upper position by buoyancy provided by the liquid level of the blood, but the conical opening cannot be blocked easily occurs; this scheme of adoption can restrict the sliding trajectory of valve ball for the valve ball is linear motion along the central line direction of bell under the combined action of guide way and buoyancy, and up to plugging up the bell, thereby avoids appearing foretell condition.

Further, a handheld part is arranged on the blood collection tube.

The condition that medical personnel directly held storage unit or drainage section when adopting this scheme can avoid taking a blood sample to avoided the finger to block the condition that is difficult to observe the blood sampling state that leads to, also avoided the influence of hand temperature to blood.

Further, the handheld part is a plastic plate arranged on the outer peripheral wall of the blood collection tube.

The plastic plate is convenient for medical staff to operate, and the plastic has light weight and low production cost.

Furthermore, the plastic slab includes first plastic slab and second plastic slab, and the both sides of heparin tube are located to first plastic slab and second plastic slab symmetry.

The symmetry sets up two different demands that are favorable to satisfying medical personnel when inserting the heparin tube and take off the heparin tube.

Furthermore, the handheld part is provided with anti-skid grains.

This scheme can increase the friction of finger and handheld portion, avoids the condition of skidding.

Drawings

FIG. 1 is a front sectional view of a first embodiment of the integrated micro blood collection tube of the present invention;

fig. 2 is a bottom sectional view of a second embodiment of the present invention, the sectional view is in the direction of B-B in fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: rubber cap 1, storage portion 2, drainage section 3, valve ball 4, kickboard 5, guided way 6, first plastic slab 7, second plastic slab 8, gag lever post 9, guide way 10.

Example one

Substantially as shown in figure 1: miniature heparin tube of integral type, including rubber cap 1 and heparin tube, rubber cap 1 and heparin tube fixed connection, fixed connection can be the detachable connection, and this embodiment is shown in fig. 1, adopts the sealed fixed connection of mode of joint between heparin tube and the rubber cap 1, specifically sets up as follows: a flange is arranged on the inner peripheral wall of the lower end of the rubber cap 1, a groove clamped with the flange is arranged at the upper end of the blood collection tube, and a sealing gasket (not shown in the figure) is arranged in the clamping groove in the embodiment; in this embodiment, the blood collection tube is a transparent glass tube.

The blood collection tube of the present embodiment comprises a storage part 2 for storing blood and a drainage segment 3 for introducing blood into the storage part 2, wherein the drainage segment is a cylindrical hollow tube in the present embodiment; the rubber cap 1 is fixedly arranged at one end of the storage part 2 far away from the drainage segment 3, namely the upper end in figure 1. One end of the storage part 2 close to the rubber cap 1 is provided with a tapered opening with gradually reduced diameter, and the smaller end of the tapered opening is positioned at one end close to the rubber cap 1. A valve ball is arranged in the storage part, the diameter of the valve ball is smaller than the maximum diameter of the conical opening, meanwhile, the diameter of the valve ball is larger than the minimum diameter of the conical opening, and the diameter of the valve ball 4 is larger than that of the drainage section 3; a floating plate 5 is fixedly arranged on one side, close to the drainage section 3, of the valve ball 4, a certain gap is reserved between the floating plate 5 and the inner peripheral wall of the storage part 2, and the floating plate 5 is in sliding connection with the inner peripheral wall of the storage part 2 along the axial direction (the vertical direction in fig. 1), so that the valve ball 4 is limited to slide only along the axial direction of the storage part 2; the density of the floating plate 5 is also less than that of blood.

As shown in fig. 1, still fixedly being equipped with handheld portion on the heparin tube, in this embodiment, handheld portion is the trapezoidal plastic slab of integrated into one piece on the heparin tube periphery wall, and the central axis of heparin tube is crossed to the plane that the plastic slab was located, and still integrated into one piece has anti-skidding line on the handheld portion. The plastic slab includes first plastic slab 7 and second plastic slab 8, and the left and right sides of heparin tube is located to first

plastic slab

7 and 8 symmetries of second plastic slab.

The working principle of the scheme is as follows: when blood sampling is carried out, the first plastic plate 7 and the second plastic plate 8 are held by hands to fix the miniature blood sampling tube, and the rubber cap 1 is fixed on the storage part 2, so that medical workers can directly use the scheme to carry out blood sampling work without temporarily fixing the rubber cap 1 on the miniature blood sampling tube, so that preparation work before use of the scheme is less, and the work efficiency of the scheme is higher; secondly, the handheld portion of this scheme includes first plastic slab 7 and second plastic slab 8, so the blood sampling in-process, if when the unexpected condition appears, medical personnel also can support drainage section 3 through changing left hand or right hand, the inconvenient condition of holding between the fingers after the change of hand can not appear.

When blood is collected, negative pressure can be formed in the blood collection tube by squeezing the rubber cap 1, and blood flows into the storage part 2 along the drainage section 3, so that the purpose of blood collection is achieved; in the blood sampling process, the valve ball 4 can move close to the rubber cap 1 under the action of buoyancy, and when the valve ball 4 moves upwards into the conical opening and is tightly abutted against the conical opening, the rubber cap 1 and the blood sampling tube can be blocked and blood sampling can not be continued, so that the condition that the blood collecting amount is excessive because medical personnel do not notice that the blood amount is enough is avoided; moreover, the floating plate 5 of the scheme can limit the motion trail of the valve ball 4, so that the valve ball 4 can only slide along the straight line where the central shaft of the blood collection tube is located. Therefore, the scheme can automatically stop blood collection after the required blood volume is collected, and the condition of excessive blood collection is avoided; in addition, the scheme is that the blood collection is automatically stopped, and medical staff does not need to stare at the blood collection tube to determine the blood collection amount, so the scheme can reduce the labor intensity of the medical staff.

Example two

As shown in fig. 2, the difference between the present embodiment and the first embodiment is that the floating plate 5 is changed to a limiting rod 9, which is specifically configured as follows: a limiting rod 9 is fixedly arranged on one side, close to the drainage section 3, of the valve ball 4, the limiting rod 9 is two straight rods which are mutually perpendicular and fixedly connected, and the fixing is realized in a welding mode; the internal perisporium of heparin tube is gone up and is opened along the axial has guide way 10, gag lever post 9 and guide way 10 sliding connection. This scheme still less for 5 consumptive materials of kickboard, also can play the purpose of restriction valve ball 4 slip orbit simultaneously, has avoided under the miniature heparin tube tilt state, and valve ball 4 can't guarantee only along the endwise slip's of miniature heparin tube the condition.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the present invention and the practicability of the patent. The technology, shape and construction parts which are not described in the present invention are all known technology.

Claims

1. Miniature heparin tube of integral type, including rubber cap and heparin tube, its characterized in that: the rubber cap is fixedly connected with one end of the blood collection tube, the blood collection tube comprises a storage part for storing blood, a conical opening is formed in the storage part, and the end with the smaller diameter of the conical opening is located at one end close to the rubber cap; the storage part is internally provided with a valve ball, the diameter of the valve ball is smaller than the maximum diameter of the conical opening, and the diameter of the valve ball is larger than the minimum diameter of the conical opening.

2. The integrated micro blood collection tube according to claim 1, wherein: the blood collection tube is a transparent glass tube.

3. The integrated micro blood collection tube according to claim 1, wherein: the blood collection tube further comprises a drainage section for introducing blood into the storage part, and the drainage section and the rubber cap are respectively located at two ends of the storage part.

4. The integrated micro blood collection tube according to claim 3, wherein: the drainage section is a cylindrical hollow pipe, and the diameter of the drainage section is smaller than that of the valve ball.

5. The integrated micro blood collection tube according to claim 4, wherein: the valve ball is close to one side fixed the being equipped with kickboard of drainage section, axial sliding connection is followed with the internal perisporium of heparin tube to the kickboard.

6. The integrated micro blood collection tube according to claim 4, wherein: the fixed gag lever post that is equipped with in one side that the valve ball is close to the drainage section is equipped with the guide way on the internal perisporium of heparin tube, gag lever post and guide way sliding connection.

7. The integrated micro blood collection tube according to claim 1, wherein: the blood collection tube is provided with a handheld part.

8. The integrated micro blood collection tube according to claim 7, wherein: the handheld portion is the plastic slab of locating on the heparin tube periphery wall.

9. The integrated micro blood collection tube according to claim 8, wherein: the plastic slab includes first plastic slab and second plastic slab, and the both sides of heparin tube are located to first plastic slab and second plastic slab symmetry.

10. The integrated micro blood collection tube according to claim 7, wherein: the handheld part is provided with anti-skid grains.