CN210749238U

CN210749238U - Intravenous blood sampler for children

Info

Publication number: CN210749238U
Application number: CN201920796539.0U
Authority: CN
Inventors: 何炜; 王琴
Original assignee: Peoples Hospital of Leshan
Current assignee: Peoples Hospital of Leshan
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-06-16
Anticipated expiration: 2029-05-30

Abstract

The utility model belongs to the technical field of medical instrument, concretely relates to children use vein hemostix, including the vacuum test tube, blood taking needle and arc mount, the blood taking needle includes the tail needle of tail end, first boss has connected gradually on the tail needle, the ka tai, connect platform and second boss, the diameter size of connecting the platform is less than the diameter size of ka tai and second boss, the ring arc mount includes the U-shaped fixture block, the terminal surface is equipped with the lug under the U-shaped fixture block free end, it establishes in the breach to connect the platform card, the terminal surface corresponds position fixedly connected with connecting plate in the breach under the diaphragm, the terminal surface is equipped with the cardboard under the connecting plate, set up on the cardboard with tail needle assorted bayonet socket, arc mount below is connected with the telescopic chassis. The purpose is as follows: when the medical staff carries out venous blood sampling on a child patient, the child patient can be fixed by one hand, the other hand independently finishes the action of inserting the vacuum blood sampling tube by immediately replacing the manipulation after the needle head enters the subcutaneous part, assistance of an assistant is not needed, and manpower resources are saved.

Description

Intravenous blood sampler for children

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to children use vein hemostix.

Background

Venous blood sampling is a basic examination means in clinical diagnosis and treatment and is one of important contents in nursing work. The traditional venous blood sampling mainly utilizes a vacuum blood sampling tube and a blood taking needle, the blood taking needle is inserted into the blood vessel along the trend of the blood vessel after being inserted, and the tail end of the blood taking needle is inserted into the vacuum blood sampling tube after returning blood until the required blood volume is obtained. If no blood returns, the angle of the needle head can be properly adjusted, or the needle head is withdrawn to touch the blood vessel again to puncture until the blood returns to the needle head, and then the vacuum negative pressure tube is connected.

In order to improve the success rate of blood sampling, medical staff proposes a blood sampling method with negative pressure, namely, when a blood sampling needle enters the subcutaneous part, the tail end of the blood sampling needle is connected with a vacuum blood sampling tube, then the needle is inserted forwards in the original direction, and under the action of the negative pressure, as long as the needle tip enters a blood vessel, the blood return in the needle tube can be immediately seen. The method has obvious effect on improving the success rate of blood sampling, but when the method is used for sampling blood for children, because the sick children are not matched, a nurse needs to fix the sick children with one hand and only needs to operate with the other hand, the action of inserting the vacuum blood sampling tube by immediately replacing a manipulation after the needle head enters the subcutaneous space is difficult to independently complete, an assistant is needed for assistance, and the operation is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the venous blood sampling device for the children is characterized in that a needle head is arranged on the needle head, a needle head is arranged on the.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

a venous blood collector for children comprises a vacuum blood collection tube, a blood collection needle and an arc-shaped fixing frame, wherein the blood collection needle comprises a tail needle at the tail end, a first boss, a clamping table, a connecting table and a second boss are sequentially connected onto the tail needle, the diameter of the connecting table is smaller than that of the clamping table and the second boss, the arc-shaped fixing frame comprises a U-shaped clamping block, a convex block is arranged on the lower end face of the free end of the U-shaped clamping block, two clamping rings are fixedly mounted on the outer side face of the upper end of the arc-shaped fixing frame, a rectangular blind hole is further formed in the upper end face of the arc-shaped fixing frame, a rectangular rod is arranged in the rectangular blind hole in a penetrating mode, a round rod is integrally formed at the upper end of the rectangular rod, a transverse plate is integrally formed at the upper end of the round rod, a gap matched with the connecting table is, the end surface is equipped with the cardboard under the connecting plate, the cardboard is located first boss below, set up on the cardboard with tail needle assorted bayonet socket, arc mount below is connected with the telescopic chassis.

Further inject, the chassis includes the bottom plate, the first semicircle pole of fixedly connected with on the bottom plate, first semicircle pole free end fixedly connected with first round platform, first semicircle hole has been seted up on the first round platform, wear to be equipped with the second semicircle pole in the first semicircle hole, the second round platform is installed to second semicircle pole lower extreme, set up on the second round platform with first semicircle pole assorted second semicircle hole, first semicircle pole and second semicircle pole are equipped with compression spring between first round platform and second round platform. Such structural design forms an extending structure through first semicircle pole and second semicircle pole cooperation compression spring, during the use, directly stimulates the bottom plate downwards for compression spring is compressed, can form a cavity that is used for placing the vacuum test tube between U-shaped fixture block and the bottom plate, puts into the cavity to the vacuum test tube again, loosens the bottom plate, and the bottom plate kick-backs under compression spring's effect, can form fixedly, convenient to use to the vacuum test tube.

Further inject, second semicircle pole upper end fixedly connected with drum, fixed mounting has the kelly in the drum, the rectangle recess has been seted up to arc mount lateral surface lower part, the arc mount seted up in rectangle recess both sides with the kelly assorted groove of falling L shape. Such structural design, during the equipment, establish the second semicircle pole in falling L shape recess through the kelly card, can accomplish being connected between chassis and the arc mount, simple structure, convenient to use.

Further, the inverted-L-shaped grooves are multiple. Such structural design when the vacuum blood taking needle to different length dimensions, can establish the card pole card in the shape of falling L recess of different positions, realize the length adjustment between bottom plate and the arc mount, accommodation is wider.

Further inject, be equipped with on the bottom plate with vacuum test tube lower extreme assorted annular boss. Due to the structural design, the annular boss is matched with the lug on the lower end face of the free end of the U-shaped clamping block for use, so that the vacuum blood collection tube can be more stably fixed in the cavity between the U-shaped clamping block and the bottom plate.

Further limit, the transverse plate is far away from one end of the round rod and is integrally formed with a bulge on one side of the notch. Such structural design, when pressing the diaphragm, can directly press the arch, it is more convenient to operate.

Further limiting, a semispherical groove is formed in the rectangular rod, a threaded hole matched with the semispherical groove is formed in the inner wall of the arc-shaped fixing frame, and a ball plunger is screwed in the threaded hole. Due to the structural design, when the transverse plate is moved to the upper moving position, the ball plunger can position the rectangular rod, so that the position of the transverse plate is fixed.

Adopt above-mentioned technical scheme's utility model, have following advantage:

1. when the medical staff performs venous blood sampling on a child patient, the child patient can be fixed by one hand, and the other hand independently completes the action of inserting the vacuum blood sampling tube by immediately replacing a manipulation after the needle head enters the subcutaneous part, so that assistance of an assistant is not needed, and the manpower resource is saved;

2. through the setting of a plurality of shape recesses of falling L, when the vacuum blood taking needle 1 to different length dimension, can establish the card pole 4223 card in the shape recess 302 of falling L of different positions, realize the length adjustment between bottom plate 41 and the arc mount 3, accommodation is wider.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a first schematic structural view of an embodiment of a venous blood collector for children of the present invention;

FIG. 2 is a schematic structural view of a blood collection needle portion of an embodiment of the children's phlebotomy device of the present invention;

fig. 3 is a schematic structural view of an arc-shaped fixing frame in an embodiment of the venous blood collector for children of the present invention;

fig. 4 is a schematic structural view of a cross plate portion in an embodiment of the venous blood collector for children of the present invention;

fig. 5 is a schematic structural view of an embodiment of the venous blood collector for children of the present invention;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 5;

fig. 7 is a schematic structural view of a bottom frame part in an embodiment of the venous blood collector for children of the present invention;

fig. 8 is a schematic structural view of a first semicircular rod and a second semicircular rod in an embodiment of the intravenous blood collection set for children of the present invention;

the main element symbols are as follows:

a vacuum blood collection tube 1, a blood collection needle 2, a tail needle 21, a first boss 211, a clamping platform 212, a connecting platform 213, a second boss 214, an arc-shaped fixing frame 3, a rectangular groove 301, an inverted L-shaped groove 302,

U-shaped fixture block 31, convex block 311, snap ring 32, rectangular blind hole 33, protrusion 330,

A rectangular rod 331, a semi-spherical groove 3311, a threaded hole 3312, a round rod 332, a cross plate 333, a notch 334, a connecting plate 335, a catch plate 336, a bayonet 3360, a locking mechanism,

Chassis 4, bottom plate 41, annular boss 411, compression spring 420,

A first semicircular rod 421, a first semicircular hole 4210, a first circular table 4211,

The second semicircular rod 422, the second semicircular hole 4220, the second circular table 4221, the cylinder 4222 and the clamping rod 4223.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 8, the venous blood collector for children of the present invention comprises a vacuum blood collection tube 1, a blood collection needle 2 and an arc-shaped fixing frame 3, wherein the blood collection needle 2 comprises a tail needle 21 at the tail end, the tail needle 21 is sequentially connected with a first boss 211, a clamping table 212, a connecting table 213 and a second boss 214, the diameter of the connecting table 213 is smaller than the diameter of the clamping table 212 and the second boss 214, the arc-shaped fixing frame 3 comprises a U-shaped clamping block 31, the lower end surface of the free end of the U-shaped clamping block 31 is provided with a bump 311, the outer side surface of the upper end of the arc-shaped fixing frame 3 is further fixedly provided with two clamping rings 32, the upper end surface of the arc-shaped fixing frame 3 is further provided with a rectangular blind hole 33, a rectangular rod 331 penetrates through the rectangular blind hole 33, the upper end of the rectangular rod 331 is integrally formed with a round rod 332, the upper end of the round rod 332 is integrally, the lower end face of the transverse plate 333 is fixedly connected with a connecting plate 335 at a position corresponding to the notch 334, the lower end face of the connecting plate 335 is provided with a clamping plate 336, the clamping plate 336 is located below the first boss 211, the clamping plate 336 is provided with a bayonet 3360 matched with the tail needle 21, and the lower part of the arc-shaped fixing frame 3 is connected with a telescopic underframe 4.

The chassis 4 comprises a bottom plate 41, a first semicircular rod 421 is fixedly connected to the bottom plate 41, a first circular table 4211 is fixedly connected to the free end of the first semicircular rod 421, a first semicircular hole 4210 is formed in the first circular table 4211, a second semicircular rod 422 is arranged in the first semicircular hole 4210 in a penetrating mode, a second circular table 4221 is installed at the lower end of the second semicircular rod 422, a second semicircular hole 4220 matched with the first semicircular rod 421 is formed in the second circular table 4221, and a compression spring 420 is sleeved between the first circular table 4211 and the second circular table 4221 through the first semicircular rod 421 and the second semicircular rod 422. Form a extending structure through first semicircle pole 421 and second semicircle pole 422 cooperation compression spring 420, during the use, directly pull bottom plate 41 downwards for compression spring 420 is compressed, can form a cavity that is used for placing vacuum test tube 1 between U-shaped fixture block 31 and the bottom plate 41, put into the cavity vacuum test tube 1 again, loosen bottom plate 41, bottom plate 41 kick-backs under compression spring 420's effect, can form fixedly, convenient to use to vacuum test tube 1.

A cylinder 4222 is fixedly connected to the upper end of the second semi-circular rod 422, a clamping rod 4223 is fixedly installed in the cylinder 4222, a rectangular groove 301 is formed in the lower portion of the outer side face of the arc-shaped fixing frame 3, and inverted-L-shaped grooves 302 matched with the clamping rod 4223 are formed in two sides of the rectangular groove 301 of the arc-shaped fixing frame 3. During assembly, the second semi-circular rod 422 is clamped in the inverted L-shaped groove 302 through the clamping rod 4223, so that the connection between the chassis 4 and the arc-shaped fixing frame 3 can be completed, and the structure is simple and the use is convenient.

The inverted-L-shaped grooves 302 are plural. When the vacuum blood taking needle 1 with different length and size is used, the clamping rod 4223 can be clamped in the inverted L-shaped grooves 302 at different positions, so that the length between the bottom plate 41 and the arc-shaped fixing frame 3 can be adjusted, and the application range is wider.

The bottom plate 41 is provided with an annular boss 411 matched with the lower end of the vacuum blood collection tube 1. Annular protrusion 411 is used in cooperation with protrusion 311 on the lower end surface of the free end of U-shaped fixture block 31, so as to more firmly fix vacuum blood collection tube 1 in the cavity between U-shaped fixture block 31 and bottom plate 41.

A protrusion 330 is integrally formed on one side of the notch 334 at one end of the horizontal plate 333 away from the round rod 332. When pressing diaphragm 33, can directly press arch 330, it is more convenient to operate.

The rectangular rod 331 is provided with a hemispherical groove 3311, the inner wall of the arc-shaped fixing frame 3 is provided with a threaded hole 3312 matched with the hemispherical groove 3311, and a ball plunger is screwed in the threaded hole 3312. When the cross plate 333 is moved to the up position, the ball plunger may position the rectangular bar 331 such that the position of the cross plate 333 is fixed.

In this embodiment, when in use, medical staff first performs tape binding and sterilization treatment on the infant, then selects a proper inverted L-shaped groove 302 according to the length and size of the vacuum blood collection tube 1, and clamps the clamping rod 4223 into the corresponding inverted L-shaped groove 302, and then holds the arc-shaped fixing frame 3 in the hand, and allows the ring finger and the little finger to penetrate into the clamping ring 32;

then, the bottom plate 41 is pulled downwards, so that the compression spring 420 is compressed, a cavity for placing the vacuum blood collection tube 1 is formed between the U-shaped fixture block 31 and the bottom plate 41, the vacuum blood collection tube 1 is placed in the cavity, the bottom plate 41 is loosened, the bottom plate 41 rebounds under the action of the compression spring 420, and the vacuum blood collection tube 1 is fixed;

then, the transverse plate 333 is pulled upwards to the upper moving position, so that the ball head plunger is clamped into the hemispherical groove 3311, the connecting platform 213 of the blood taking needle 2 is clamped into the notch 334, and the tail needle 21 is attached into the bayonet 3360;

finally, the arm of the infant patient is fixed by the hand which does not hold the arc-shaped fixing frame 3, the thumb, the index finger and the middle finger of the other hand prick the blood taking needle 2 into the vein of the child, after the blood returns, the protrusion 330 is pressed by the thumb of the hand which holds the arc-shaped fixing frame 3, so that the tail needle 21 is pricked into the vacuum blood taking tube 1, and the vein blood taking work can be completed.

It is right above the utility model provides a pair of children use vein hemostix introduces in detail. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a children use vein hemostix which characterized in that: the blood taking needle comprises a vacuum blood taking tube (1), a blood taking needle (2) and an arc-shaped fixing frame (3), wherein the blood taking needle (2) comprises a tail needle (21) at the tail end, a first boss (211), a clamping table (212), a connecting table (213) and a second boss (214) are sequentially connected onto the tail needle (21), the diameter of the connecting table (213) is smaller than that of the clamping table (212) and the second boss (214), the arc-shaped fixing frame (3) comprises a U-shaped clamping block (31), a convex block (311) is arranged on the lower end face of the free end of the U-shaped clamping block (31), two clamping rings (32) are fixedly arranged on the outer side face of the upper end of the arc-shaped fixing frame (3), a rectangular blind hole (33) is further formed in the upper end face of the arc-shaped fixing frame (3), a rectangular rod (331) is arranged in the rectangular blind hole (33) in, round bar (332) upper end integrated into one piece has diaphragm (333), set up on diaphragm (333) with be connected platform (213) assorted breach (334), it establishes in breach (334) to connect platform (213) card, diaphragm (333) lower terminal surface corresponds position fixedly connected with connecting plate (335) in breach (334), the terminal surface is equipped with cardboard (336) under connecting plate (335), cardboard (336) are located first boss (211) below, seted up on cardboard (336) with tail needle (21) assorted bayonet socket (3360), arc mount (3) below is connected with telescopic chassis (4).

2. A venous blood collector for children according to claim 1, characterized in that: chassis (4) include bottom plate (41), first semicircle pole (421) of fixedly connected with are gone up in bottom plate (41), first semicircle pole (421) free end fixedly connected with first round platform (4211), first semicircle hole (4210) have been seted up on first round platform (4211), wear to be equipped with second semicircle pole (422) in first semicircle hole (4210), second round platform (4221) is installed to second semicircle pole (422) lower extreme, set up on second round platform (4221) with first semicircle pole (421) assorted second semicircle hole (4220), first semicircle pole (421) and second semicircle pole (422) are equipped with compression spring (420) between first round platform (4211) and second round platform (4221).

3. A venous blood collector for children according to claim 2, characterized in that: the utility model discloses a fixing device for the clamp rod of the automobile seat, including second semicircle pole (422), drum (4222) is fixedly connected with in second semicircle pole (422) upper end, drum (4222) internal fixation installs kelly (4223), rectangle recess (301) have been seted up to arc mount (3) lateral surface lower part, arc mount (3) in rectangle recess (301) both sides seted up with kelly (4223) assorted shape recess (302) of falling L.

4. A venous blood collector for children according to claim 3, characterized in that: the number of the inverted L-shaped grooves (302) is multiple.

5. A venous blood collector for children according to claim 2, characterized in that: and the bottom plate (41) is provided with an annular boss (411) matched with the lower end of the vacuum blood collection tube (1).

6. A venous blood collector for children according to claim 1, characterized in that: a protrusion (330) is integrally formed on one side of the notch (334) at one end, far away from the round rod (332), of the transverse plate (333).

7. A venous blood collector for children according to claim 1, characterized in that: the rectangular rod (331) is provided with a hemispherical groove (3311), the inner wall of the arc-shaped fixing frame (3) is provided with a threaded hole (3312) matched with the hemispherical groove (3311), and a ball plunger is screwed in the threaded hole (3312).