CN219516301U - Blood taking needle - Google Patents

Abstract

The utility model discloses a blood taking needle which comprises a first needle head assembly and a second needle head assembly, wherein the first needle head is used for puncturing skin to take blood, the second needle head assembly is connected with a blood collecting tube for collecting blood, the first needle head assembly and the second needle head assembly are arranged in a split type, a window structure is arranged at the joint of the first needle head assembly and the second needle head assembly, a cavity is arranged in the window structure, and the cavity is positioned between a blood conveying pipeline of the first needle head assembly and a blood output pipeline of the second needle head assembly; the outer wall of the window structure is transparent. Through addding the window structure, and the window structure is the middleware of a double junction, interconnect can make blood sampling process more convenient like this. Meanwhile, the cavity is arranged in the window structure, so that blood can be collected, and collected blood can be conveniently guided out of the collecting tube. In addition, the outer wall surface of the window structure is arranged to be transparent, so that an operator can observe the blood collection condition conveniently, and the accuracy and safety of blood collection are ensured.

Description

Blood taking needle

Technical Field

The utility model relates to medical equipment, in particular to a blood taking needle.

Background

In the existing blood taking needle technology, people cannot always observe the condition of blood entering in time, so that a lot of inconvenient and unsafe hidden dangers are brought to blood taking operation, when a medical staff takes blood for a person with blood taking, the medical staff does not completely know whether the blood taking needle is correctly inserted into a blood vessel or whether blood is conveyed into the blood taking needle, and only takes blood from own experience. If the operation is improper, pain of the blood collector is increased.

To solve this problem, improvements over the prior art are needed to introduce new equipment and processes to increase the efficiency and accuracy of blood collection.

Disclosure of Invention

The utility model aims to overcome the defect that the blood sampling condition cannot be seen in the prior art, and provides a blood taking needle.

The utility model solves the technical problems by the following technical scheme:

a blood taking needle comprising a first needle assembly for piercing skin for taking blood and a second needle assembly for connecting with a collection tube for blood collection,

the first needle head assembly and the second needle head assembly are arranged in a split type, and a window structure is arranged at the joint of the first needle head assembly and the second needle head assembly;

a cavity is arranged in the window structure and is positioned between the blood conveying pipeline of the first needle head assembly and the blood output pipeline of the second needle head assembly;

the outer wall of the window structure is transparent.

In this technical scheme, through adopting split type design with the blood taking needle to through window structure swing joint, the window structure is the middleware of a double junction, interconnect like this can make blood sampling process more convenient. Meanwhile, a cavity is arranged in the window structure and is communicated with a blood conveying pipeline of the first needle head, so that blood can be collected; the cavity is also communicated with a blood output pipeline of the second needle head assembly, so that collected blood is conveniently led out of the collecting tube. In addition, the outer wall surface of the window structure is arranged to be transparent, so that an operator can observe the blood collection condition conveniently, and the accuracy and safety of blood collection are ensured.

Preferably, the first needle assembly is at least partially overlapped with the cavity in the height direction, and at least the overlapped area of the outer wall surface of the first needle assembly and the cavity is transparent.

By adopting the structure, on one hand, the reliability of the window structure arranged on the first needle head assembly is enhanced, and on the other hand, an operator can observe the blood collection condition in time conveniently, and the accuracy and the safety of blood collection are ensured.

Preferably, the first needle assembly comprises a first needle, a first needle seat and a protective shell,

the first needle head is connected with the first needle seat, and the first needle seat is arranged at one end of the first needle head, which is close to the window structure;

the protective housing is both ends open-ended cylindric, and the cover is established on the outer wall of first needle file, just the outer wall of protective housing with the interior wall looks adaptation of window structure.

With this configuration, the specific configuration of the first needle assembly is further defined, resulting in a compact configuration. Meanwhile, due to the design, the first needle head can be placed in the first needle seat relatively stably, shaking of the first needle head when the first needle head enters a patient is avoided, pain is reduced, and accuracy and safety of blood sampling are guaranteed. In addition, the blood taking needle has the characteristics of easy cleaning and disinfection because the first needle head is contacted with the first needle seat. This design effectively protects the first needle and reduces the risk of contamination and injury to the first needle. And moreover, the outer wall surface of the protective housing and the inner wall surface of the window structure are matched with each other in the design form, so that the connection between the protective housing and the window structure can be ensured to be tighter, a more perfect sealing effect is formed, the problems of blood leakage and pollution are effectively prevented, and the safety and the sanitation of blood sampling operation are improved.

Preferably, when the first needle head assembly is used, the protective shell is sleeved on the first needle seat;

after the first needle head assembly is used, the protective shell is sleeved on the first needle seat and the first needle head.

By adopting the structural form, the risk of pollution and injury can be effectively reduced, and the safety of blood sampling operation is improved.

Preferably, the number of the protective shells is a plurality,

when the first needle head assembly is used, the plurality of protective shells are sequentially stacked on the outer wall surface of the first needle seat along the radial direction of the first needle seat;

after the first needle assembly is used, the plurality of protective shells are mutually nested along the extending direction of the first needle from the first needle seat to the direction of the first needle.

By adopting the structural form, the first needle is prevented from being influenced by pollution and injury, and the safety of blood sampling operation can be improved to a certain extent by adopting the design.

Preferably, the second needle assembly comprises a second needle, a second hub and a protective sheath,

the second needle head is connected with the second needle seat, and the second needle seat is arranged at one end of the second needle head, which is close to the window structure;

the protective sleeve is sleeved on the second needle.

With this configuration, the specific configuration of the second needle assembly is further defined, resulting in a compact configuration. Meanwhile, the second needle can be placed in the second needle seat relatively stably by the design, so that the situation that the second needle cannot be connected with a blood collection tube smoothly is avoided. Meanwhile, by additionally arranging the protective sleeve, unnecessary injury and infection are avoided, and sanitation and safety in blood collection are ensured.

Preferably, the window structure is provided with a first connecting part on an outer wall surface close to the second needle seat, and a second connecting part is provided on an inner wall surface of the second needle seat corresponding to the first connecting part, and the first connecting part is matched with the second connecting part.

By adopting the structural form, the purpose of the design is convenient to install and detach, and the second needle head assembly can be connected with each other through the connecting part and the window structure, so that quick detachment and replacement are realized, each part of the blood taking needle can be accurately connected, and the convenience and the high efficiency of operation are ensured.

Preferably, the window structure is provided with an extension section, a blood output pipeline of the second needle head assembly is embedded in the extension section, and a cavity is formed between one end of the blood output pipeline, which is close to the window structure, and the interior of the window structure;

the outer wall surface of the second needle seat is enclosed on the outer wall surface of the extending section.

By adopting the structural form, the blood output pipeline of the second needle head assembly is embedded in the window structure, so that the second needle head assembly can be more compactly distributed, the volume is reduced, the reliability of the connection of the second needle head assembly in the window structure is also ensured, and the blood is prevented from being exposed. Simultaneously, the one end that the blood output pipeline is close to the window structure and the inside formation cavity of window structure, the collection condition of blood can more audio-visual be seen to the operator of being convenient for, efficiency and blood sampling success rate when improving the blood sampling.

Preferably, the protective sleeve is made of elastic materials.

When the second needle is convenient to connect with the blood collection tube, normal insertion of the second needle is not affected, the protective sleeve can be curled in the direction close to the window structure by the extrusion force of the collection tube when the second needle is inserted into the collection tube, and after the second needle is pulled out of the collection tube, the protective sleeve is restored to the original state under the elastic action, namely, the protective sleeve is restored to the state of completely covering the second needle at the beginning.

Preferably, the protective sleeve is provided with a protective sleeve opening at one end far away from the window structure, and the protective sleeve opening is used for the second needle to penetrate out.

By adopting the structure, the second needle head can smoothly pass through the protective sleeve to perform blood sampling operation, so that the blood sampling device is convenient and practical, the blood sampling efficiency is improved, the second needle head is effectively protected from pollution and damage, and the blood sampling safety is ensured.

The utility model has the positive progress effects that: the blood taking needle adopts a split type design, and is movably connected through the window structure, the window structure is a middle piece of a double connector, and thus the blood taking process can be more convenient due to the mutual connection. Meanwhile, a cavity is arranged in the window structure and is communicated with a blood conveying pipeline of the first needle head, so that blood can be collected; the cavity is also communicated with a blood output pipeline of the second needle head assembly, so that collected blood is conveniently led out of the collecting tube. In addition, the outer wall surface of the window structure is arranged to be transparent, so that an operator can observe the blood collection condition conveniently, and the accuracy and safety of blood collection are ensured.

Drawings

Fig. 1 is a schematic view illustrating a lancet according to a preferred embodiment of the present utility model.

Fig. 2 is a sectional view of a lancet according to a preferred embodiment of the present utility model.

Fig. 3 is an enlarged view of a portion a of fig. 2.

FIG. 4 is a schematic view of a first needle assembly according to a preferred embodiment of the present utility model

Fig. 5 is a cross-sectional view of a first needle assembly according to a preferred embodiment of the present utility model.

FIG. 6 is a schematic view of a second needle assembly according to a preferred embodiment of the present utility model

Fig. 7 is a cross-sectional view of a second needle assembly according to a preferred embodiment of the present utility model.

FIG. 8 is a schematic view of a window structure according to a preferred embodiment of the present utility model

Fig. 9 is a cross-sectional view of a window structure according to a preferred embodiment of the present utility model.

Reference numerals illustrate:

blood taking needle 100

First needle assembly 200

Blood transfer line 21

First needle 22

First needle seat 23

Protective shell 24

Second needle assembly 300

Blood output line 31

Second needle 32

Second needle seat 33

Second connecting portion 331

Protective sleeve 34

Window structure 400

First connecting portion 41

Cavity 42

Detailed Description

The utility model is further illustrated by means of examples which follow, without thereby restricting the scope of the utility model thereto.

[ example 1 ]

As shown in fig. 1 to 9, the present embodiment discloses a lancet 100.

As shown in fig. 1-3, the lancet 100 includes a first needle assembly 200 for piercing the skin for blood collection and a second needle assembly 300 for connection with a collection tube for blood collection.

Wherein, the first needle subassembly 200 and the second needle subassembly 300 split type setting to be equipped with window structure 400 in the junction of first needle subassembly 200 and second needle subassembly 300, first needle subassembly 200 and second needle subassembly 300 pass through window structure 400 swing joint in the middle, and first needle subassembly 200 and second needle subassembly 300 can dismantle, and window structure 400 is the middleware of a double junction, and interconnect can make blood sampling process more convenient like this.

Also, a cavity 42 is provided inside the window structure 400, in particular, the cavity 42 is located between the blood delivery line 21 of the first needle assembly 200 and the blood output line 31 of the second needle assembly 300, which on the one hand enables collection of blood and on the other hand facilitates the removal of collected blood into the collection tube.

In addition, the outer wall of the window structure 400 is transparent, so that an operator can observe the blood collection condition conveniently, and the accuracy and safety of blood collection are ensured.

Preferably, first needle assembly 200 is at least partially coincident with cavity 42 in the height direction, i.e., there is a region of coincidence between first needle assembly 200 and cavity 42 in the height direction, and the outer wall surface of first needle assembly 200 is transparent at least in the region of coincidence with cavity 42. With this structure, on the one hand, the reliability of the window structure 400 disposed on the first needle assembly 200 is enhanced, and on the other hand, the operator can observe the blood collection condition in time, and the accuracy and safety of blood collection are ensured. Meanwhile, in the present embodiment, the outer wall surface of the first needle assembly 200 and the outer wall surface of the window structure 400 are both transparent, and the outer wall surface of the window structure 400 and the outer wall surface of the first needle assembly 200 are both yellow transparent. The device is convenient for operators to observe the blood collection condition clearly and intuitively through the refraction of light, improves the collection efficiency, and is also beneficial to improving the accuracy and safety of blood collection. In addition, the yellow transparent color can attract the attention of a patient in the blood sampling process, relieve the tension of the patient and improve the comfort and satisfaction of the blood sampling process.

As a preferred embodiment of the present utility model, first needle assembly 200 includes a first needle 22, a first hub 23 and a protective housing 24, as shown in fig. 4-5.

Wherein the first needle 22 is connected to the first hub 23, and the first hub 23 is disposed on an end of the first needle 22 adjacent to the window structure 400. The protective housing 24 is the open-ended cylindric in both ends, overlaps to establish on the outer wall surface of first needle file 23, and the outer wall surface of protective housing 24 and the interior wall surface looks adaptation of window structure 400.

With this configuration, the specific configuration of first needle assembly 200 is further defined, resulting in a compact configuration. Meanwhile, due to the design, the first needle head 22 can be placed in the first needle seat 23 relatively stably, so that shaking when the first needle head 22 enters a patient is avoided, pain is reduced, and accuracy and safety of blood sampling are guaranteed. In addition, since the first needle 22 is in contact with the first needle holder 23, the lancet 100 has the characteristics of easy cleaning and sterilization. This design effectively protects the first needle 22 and reduces the risk of contamination and injury to the first needle 22. In addition, the outer wall surface of the protective shell 24 and the inner wall surface of the window structure 400 are matched with each other, so that the connection between the protective shell 24 and the window structure 400 can be ensured to be tighter, a more perfect sealing effect is formed, the problems of blood leakage and pollution are effectively prevented, and the safety and the sanitation of blood sampling operation are improved.

Preferably, when the healthcare worker performs a blood sampling operation on a blood taker, that is, when the first needle assembly 200 is in a use state, the protective housing 24 is sleeved on the first needle seat 23, so that the first needle 22 is conveniently exposed to perform a normal blood sampling operation.

When the blood sampling operation of the blood taker is finished by the medical staff, namely, after the first needle head assembly 200 is in the use state, the protective housing 24 is sleeved on the first needle seat 23 and the first needle head 22, namely, the protective housing 24 can completely cover the first needle head 22 and the second needle seat 33, so that the risk of pollution and injury can be effectively reduced, the situation that the first needle head 22 with blood of the blood taker is stabbed again to other people is avoided, and the safety and the sanitation of the blood sampling operation are improved.

Preferably, the number of protective cases 24 is plural.

In the use state of the first needle assembly 200, the plurality of protective cases 24 are sequentially stacked on the outer wall surface of the first needle holder 23 along the radial direction of the first needle holder 23, that is, as shown in fig. 5, the plurality of protective cases 24 are stacked on the outer wall surface of the first needle holder 23 layer by layer.

After the first needle assembly 200 is used, the plurality of protective cases 24 are mutually nested along the extending direction of the first needle 22 from the first needle seat 23 to the direction of the first needle 22, namely, one ring is buckled, each two protective cases 24 are movably connected, and the protective cases are arranged side by side in the extending direction of the first needle 22, so that the first needle 22 is prevented from being influenced by pollution and injury, and the safety of blood sampling operation can be improved to a certain extent by the design.

As a preferred embodiment of the present utility model, second needle assembly 300 includes a second needle 32, a second hub 33 and a protective sheath 34, as shown in fig. 6-7.

Wherein the second needle 32 is connected to the second needle holder 33, and the second needle holder 33 is disposed at an end of the second needle 32 near the window structure 400. A protective sheath 34 is disposed over the second needle 32.

With this configuration, the specific configuration of second needle assembly 300 is further defined, resulting in a compact configuration. At the same time, the second needle 32 is placed in the second needle seat 33 relatively stably by the design, so that the situation that the second needle 32 cannot be connected with a blood collection tube smoothly is avoided. Meanwhile, by adding the protective sleeve 34, unnecessary injuries and infections are avoided, and sanitation and safety in blood collection are ensured.

Preferably, the protective sleeve 34 is made of elastic material, so that the normal insertion of the second needle 32 is not affected when the second needle 32 is connected with the blood collection tube, the protective sleeve 34 can be curled towards the direction close to the window structure 400 by the extrusion force of the collection tube when the second needle 32 is inserted into the collection tube, and after the second needle 32 is pulled out of the collection tube, the protective sleeve 34 is restored to the original state under the elastic action, namely, the state of completely covering the second needle 32 is restored.

Specifically, the protective sheath 34 is provided with a protective sheath opening at an end remote from the window arrangement 400, the protective sheath opening being for the second needle 32 to pass out. Specifically, when the second needle 32 is not connected to the blood collection tube for collecting blood, the protective sleeve 34 completely covers the second needle 32, the second needle 32 is inside the chamber of the protective sleeve 34, and the protective sleeve 34 is in a "closed and sealed state"; when the second needle 32 is connected to a blood collection tube for collecting blood, the second needle 32 extends out of the protective sheath 34 through the protective sheath opening to effect connection to the blood collection tube.

By adopting the design, the second needle head 32 can smoothly pass through the protective sleeve 34 to perform blood sampling operation, so that the blood sampling device is convenient and practical, the blood sampling efficiency is improved, the second needle head 32 is effectively protected from pollution and damage, and the blood sampling safety is ensured.

Preferably, to achieve a stable connection between the second needle assembly 300 and the window structure 400, as shown in fig. 3, a first connection portion 41 is provided on an outer wall surface of the window structure 400 adjacent to the second needle holder 33, and a second connection portion 331 is provided on an inner wall surface of the second needle holder 33 corresponding to the first connection portion 41, and the first connection portion 41 and the second connection portion 331 are adapted.

With this structural form, the purpose of such design is to facilitate the installation and removal such that the second needle assembly 300 can be connected to each other through the connection part and the window structure 400, thereby achieving the rapid removal and replacement, ensuring that the respective parts of the lancet 100 can be precisely connected, and ensuring the convenience and efficiency of the operation.

In this embodiment, the first connecting portion 41 is a protrusion at the lowest end of the window structure 400 and the second hub 33, and the second connecting portion 331 is a threaded structure on the inner wall of the second hub 33, and the protrusion is matched with the threaded structure, so as to realize a stable connection between the window structure 400 and the second hub assembly 300.

As shown in fig. 3 and 7-9, the window structure 400 has an extension, i.e., an extension extending from the end surface of the window structure 400 that contacts the second hub 33 in the direction of the second needle assembly 300 by a distance.

The blood output line 31 of the second needle assembly 300 is embedded in the protruding section, and the end of the blood output line 31 adjacent to the window structure 400 and the interior of the window structure 400 form a cavity 42. The outer wall surface of the second needle holder 33 is provided around the outer wall surface of the extension.

With this structure, the blood output tube 31 of the second needle assembly 300 is embedded in the window structure 400, which can be more compactly arranged, and reduce the volume, and ensure the reliability of the connection of the second needle assembly 300 to the window structure 400, and avoid the exposure of blood. Meanwhile, the blood output pipeline 31 is close to one end of the window structure 400 and the cavity 42 is formed in the window structure 400, so that an operator can more intuitively see the blood collection condition, and the efficiency and the blood collection success rate during blood collection are improved.

Specifically, the length of the protruding section is smaller than the length of the second needle mount 33 enclosed in the protruding section. With this configuration, the blood output line 31 of the second needle assembly 300 and the interior of the window structure 400 are conveniently formed with the cavity 42, ensuring proper collection of blood.

Specifically, as shown in fig. 3, a through hole is formed between the blood delivery line 21 and the cavity 42 of the first needle assembly 200, and the through hole is in a cone shape, that is, a cone apex is disposed toward the direction of the first needle assembly 200.

[ example 2 ]

In this embodiment, embodiment 2 discloses a lancet of another structural form, and embodiment 2 is basically the same as that of embodiment 1, and the difference of embodiment 2 is that the window structure of embodiment 2 is a part of the first needle assembly, that is, in embodiment 2, the lancet includes two components, namely, the first needle assembly and the second needle assembly, and the window structure is located at one end of the first needle assembly near the second needle assembly, and is used for being connected with the second needle assembly, so as to ensure positive collection of blood.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (10)

1. A blood taking needle comprising a first needle assembly for puncturing the skin for taking blood and a second needle assembly for connecting with a collection tube for blood collection, characterized in that,

the first needle head assembly and the second needle head assembly are arranged in a split type, and a window structure is arranged at the joint of the first needle head assembly and the second needle head assembly;

a cavity is arranged in the window structure and is positioned between the blood conveying pipeline of the first needle head assembly and the blood output pipeline of the second needle head assembly;

the outer wall of the window structure is transparent.

2. The lancet of claim 1, wherein the first needle assembly is at least partially overlapped with the cavity in a height direction, and an outer wall surface of the first needle assembly is transparent at least in an overlapped region with the cavity.

3. The lancet of claim 1, wherein the first needle assembly comprises a first needle, a first hub, and a protective housing,

the first needle head is connected with the first needle seat, and the first needle seat is arranged at one end of the first needle head, which is close to the window structure;

the protective housing is both ends open-ended cylindric, and the cover is established on the outer wall of first needle file, just the outer wall of protective housing with the interior wall looks adaptation of window structure.

4. The lancet of claim 3,

when the first needle head assembly is used, the protective shell is sleeved on the first needle seat;

after the first needle head assembly is used, the protective shell is sleeved on the first needle seat and the first needle head.

5. The lancet of claim 4, wherein the number of protective housings is a plurality,

when the first needle head assembly is used, the plurality of protective shells are sequentially stacked on the outer wall surface of the first needle seat along the radial direction of the first needle seat;

after the first needle assembly is used, the plurality of protective shells are mutually nested along the extending direction of the first needle from the first needle seat to the direction of the first needle.

6. The lancet of claim 1, wherein the second needle assembly comprises a second needle, a second hub, and a protective sheath,

the second needle head is connected with the second needle seat, and the second needle seat is arranged at one end of the second needle head, which is close to the window structure;

the protective sleeve is sleeved on the second needle.

7. The lancet of claim 6, wherein a first connection portion is provided on an outer wall surface of the window structure adjacent to the second hub, and a second connection portion is provided on an inner wall surface of the second hub corresponding to the first connection portion, the first connection portion and the second connection portion being adapted.

8. The lancet of claim 6, wherein the window structure has an extension segment, the blood output line of the second needle assembly being embedded within the extension segment, the blood output line defining a cavity adjacent an end of the window structure and an interior of the window structure;

the outer wall surface of the second needle seat is enclosed on the outer wall surface of the extending section.

9. The lancet of claim 6, wherein the protective sheath is made of an elastic material.

10. The lancet of claim 6, wherein the protective sheath is provided with a protective sheath opening at an end remote from the window structure, the protective sheath opening allowing the second needle to pass through.