CN210931456U

CN210931456U - Novel venous blood taking needle

Info

Publication number: CN210931456U
Application number: CN201921697205.4U
Authority: CN
Inventors: 罗薇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-07-07
Anticipated expiration: 2029-10-11

Abstract

The utility model provides a novel venous blood taking needle. The novel venous blood taking needle comprises a bleeding cylinder; a connector; the adjusting mechanism comprises a connecting ball, a knob, an indicator, an adjusting ball and a communicating pipe, the connecting ball is mounted at the top end of the connector, the knob is rotatably connected with the inside of the connecting ball, the indicator is arranged on the side wall of the connecting ball, the adjusting ball is rotatably connected with the inside of the connecting ball, and the communicating pipe penetrates through the connecting ball and the adjusting ball; a blood transfusion tube; a needle tube; the sealing mechanism comprises a first baffle, a second baffle, a limiting strip and a limiting hole, the first baffle and the second baffle abut against the side wall of the top end of the blood transfusion tube, the limiting strip is fixed on the side wall of the first baffle, and the limiting hole is formed in the side face of the second baffle. The utility model provides a novel vein blood taking needle has the advantage that can shutoff blood.

Description

Novel venous blood taking needle

Technical Field

The utility model relates to a supplementary field of technical medical treatment especially relates to a novel blood sampling needle.

Background

A venous blood lancet is a blood lancet used for collecting blood samples during medical examination. The blood taking needle at the top end is used for puncturing a blood vessel, the tail end transparent hose is connected with the tail needle, the tail needle is wrapped by the rubber hose, and the needle cap is sleeved outside the tail needle and used for puncturing a vacuum blood taking test tube and sucking blood into the tube by using negative pressure in the test tube.

After the blood taking needle is used, blood is left in the blood transfusion tube, if the blood taking needle is not processed, the blood pollution is caused, and the disease transmission can be caused in serious cases, so the residual blood in the blood transfusion tube needs to be sealed.

Therefore, there is a need for a new intravenous blood collection needle that solves the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel venous blood taking needle that can shutoff blood.

The utility model provides a novel venous blood taking needle includes: a bleeding cartridge; the connector is connected with the top surface of the bleeding cylinder in a clamping manner; the adjusting mechanism is mounted at the top end of the connector and comprises a connecting ball, a knob, an indicator, an adjusting ball and a communicating pipe, the connecting ball is mounted at the top end of the connector, the knob is rotatably connected with the inside of the connecting ball, the indicator is arranged on the side wall of the connecting ball, the adjusting ball is rotatably connected with the inside of the connecting ball, the communicating pipe penetrates through the connecting ball and the adjusting ball, and the communicating pipe is communicated with the connector; the bottom end of the blood transfusion tube is fixed at the top end of the connecting ball, and the blood transfusion tube is communicated with the communicating tube; the bottom end of the needle tube is communicated with the top end of the blood transfusion tube; the blood transfusion tube comprises a sealing mechanism, the sealing mechanism is abutted against the blood transfusion tube and comprises a first baffle, a second baffle, a limiting strip and a limiting hole, the first baffle and the second baffle are abutted against the top end side wall of the blood transfusion tube, the limiting strip is fixed on the side wall of the first baffle, the limiting hole is formed in the side face of the second baffle, and the limiting strip is connected with the limiting hole in a clamping mode.

Preferably, the closing mechanism further comprises a pressing plate, and the pressing plate is fixed to the side walls of the first baffle and the second baffle respectively.

Preferably, the bottom end of the knob is fixed to a side wall of the adjusting ball.

Preferably, the inside of the connecting ball is a ball-shaped hollow structure, and the diameter of the adjusting ball is equal to that of the hollow structure of the connecting ball.

Preferably, the limiting strip is of an L-shaped structure.

Compared with the prior art, the utility model provides a novel vein blood taking needle has following beneficial effect:

the utility model provides a novel venous blood taking needle, after the blood sampling is finished, firstly the knob is aligned with the indicator, at the moment, the connector is communicated with the blood transfusion tube, the knob rotates a certain angle, the adjusting ball also rotates a certain angle, the communicating pipe in the adjusting ball also rotates a certain angle, at the moment, the communicating pipe is not communicated with the connector and the blood transfusion tube, namely, the connector is not communicated with the blood transfusion tube any more; the first baffle and the second baffle are pressed down again, the first baffle and the second baffle are close to each other, the limiting strip slides into the limiting hole and is connected with the limiting hole in a clamping mode, the first baffle and the second baffle can extrude the blood transfusion tube, the blood transfusion tube is closed, internal blood cannot flow out, after two ends of the blood transfusion tube are closed, the blood in the blood transfusion tube cannot flow out, and therefore pollution cannot be caused, and the blood transfusion device is safe and reliable.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the novel venous blood taking needle provided by the invention;

FIG. 2 is a schematic structural view of the closure mechanism shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the adjustment mechanism shown in FIG. 1;

fig. 4 is a schematic cross-sectional view of the adjustment mechanism shown in fig. 1.

Reference numbers in the figures: 1. the blood transfusion device comprises a bleeding cylinder, 2, a connector, 3, an adjusting mechanism, 31, a connecting ball, 32, a knob, 33, an indicator, 34, an adjusting ball, 35, a communicating pipe, 4, a blood transfusion pipe, 5, a needle tube, 6, a closing mechanism, 61, a first baffle, 62, a second baffle, 63, a limiting strip, 64, a limiting hole, 65 and an extrusion plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic structural view of a preferred embodiment of the novel intravenous blood taking needle of the present invention; FIG. 2 is a schematic structural view of the closure mechanism shown in FIG. 1; FIG. 3 is an enlarged schematic view of the adjustment mechanism shown in FIG. 1; fig. 4 is a schematic cross-sectional view of the adjustment mechanism shown in fig. 1. Novel vein blood taking needle includes: a bleeding cartridge 1; the connector 2 is clamped and connected with the top surface of the bleeding cylinder 1; the adjusting mechanism 3 is installed at the top end of the connector 2, the adjusting mechanism 3 comprises a connecting ball 31, a knob 32, an indicator mark 33, an adjusting ball 34 and a communicating pipe 35, the connecting ball 31 is installed at the top end of the connector 2, the knob 32 is rotatably connected with the inside of the connecting ball 31, the indicator mark 33 is arranged on the side wall of the connecting ball 31, the adjusting ball 34 is rotatably connected with the inside of the connecting ball 31, the communicating pipe 35 penetrates through the connecting ball 31 and the adjusting ball 34, and the communicating pipe 35 is communicated with the connector 2; the bottom end of the blood transfusion tube 4 is fixed at the top end of the connecting ball 31, and the blood transfusion tube 4 is communicated with the communicating pipe 35; the bottom end of the needle tube 5 is communicated with the top end of the blood transfusion tube 4; closing mechanism 6, closing mechanism 6 contradicts defeated blood vessel 4, closing mechanism 6 includes first baffle 61, second baffle 62, spacing 63 and spacing hole 64, first baffle 61 and second baffle 62 contradict defeated blood vessel 4's top lateral wall, spacing 63 is fixed in the lateral wall of first baffle 61, spacing hole 64 is located the side of second baffle 62, just spacing 63 with the block is connected between the spacing hole 64.

In a specific implementation, as shown in fig. 2, the closing mechanism 6 further includes a pressing plate 65, and the pressing plate 65 is fixed on the side walls of the first baffle 61 and the second baffle 62, respectively, so as to close the blood transfusion tube 4 more firmly and prevent blood from flowing out.

In a specific implementation, as shown in fig. 4, the bottom end of the knob 32 is fixed to a side wall of the adjusting ball 34, so that when the knob 32 is rotated, the adjusting ball 34 can be driven to rotate together.

In a specific implementation process, as shown in fig. 4, the inside of the connecting ball 31 is a ball-shaped hollow structure, and the diameter of the adjusting ball 34 is equal to the diameter of the hollow structure of the connecting ball 31, so that no gap is generated between the connecting ball 31 and the adjusting ball 34, and blood is prevented from overflowing.

In a specific implementation process, as shown in fig. 2, the limiting strip 63 is in an L-shaped structure, so that the limiting strip 63 cannot be pulled back after entering the limiting hole 64, thereby achieving the purpose of closing the infusion tube 4.

The utility model provides a novel venous blood taking needle's theory of operation as follows:

when the blood collecting device is used, a vacuum blood collecting tube is inserted into the bleeding cylinder 1, then the needle tube 5 is inserted into the body of a blood collector for blood collection, blood can enter the vacuum blood collecting tube in the bleeding cylinder 1 through the needle tube 5 and the blood transfusion tube 4, after the blood collection is finished, firstly, the knob 32 is aligned with the indicator 33, at the moment, the connector 2 and the blood transfusion tube 4 are communicated, the knob 32 rotates 90 degrees, the adjusting ball 34 also rotates 90 degrees, and the communicating tube 35 in the adjusting ball 34 also rotates 90 degrees, namely, the connector 2 is not communicated with the blood transfusion tube 4 any more; the first baffle 61 and the second baffle 62 are pressed again, the first baffle 61 and the second baffle 62 are close to each other, the limiting strip 63 slides into the limiting hole and is connected with the limiting hole in a clamping mode, the first baffle 61 and the extrusion plate 65 on the second baffle 62 can extrude the blood transfusion tube 4, the blood transfusion tube 4 is sealed, internal blood cannot flow out, after two ends of the blood transfusion tube 4 are sealed, the blood in the blood transfusion tube 4 cannot flow out, and therefore pollution, safety and reliability can be avoided.

the utility model provides a novel venous blood taking needle, after the blood sampling finishes, at first the knob 32 aims at the indicator 33, at this moment the connector 2 with defeated blood vessel 4 is linked together, the knob 32 rotates 90 degrees, the adjusting ball 34 rotates 90 degrees equally, the communicating pipe 35 in the adjusting ball 34 also rotates 90 degrees, at this moment communicating pipe 35 is not linked together with connector 2 and defeated blood vessel 4, namely the connector 2 with defeated blood vessel 4 no longer communicates; the first baffle 61 and the second baffle 62 are pressed again, the first baffle 61 and the second baffle 62 are close to each other, the limiting strip 63 slides into the limiting hole and is connected with the limiting hole in a clamping mode, the first baffle 61 and the second baffle 62 can extrude the blood transfusion tube 4, the blood transfusion tube 4 is closed, internal blood cannot flow out, after two ends of the blood transfusion tube 4 are closed, the blood in the blood transfusion tube 4 cannot flow out, and therefore pollution cannot be caused, safety and reliability are achieved.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A novel venous blood taking needle is characterized by comprising:

a bleeding cartridge (1);

the connector (2) is clamped and connected with the top surface of the bleeding cylinder (1);

the adjusting mechanism (3) is installed at the top end of the connector (2), the adjusting mechanism (3) comprises a connecting ball (31), a knob (32), an indicator (33), an adjusting ball (34) and a communicating pipe (35), the connecting ball (31) is installed at the top end of the connector (2), the knob (32) is rotatably connected with the inside of the connecting ball (31), the indicator (33) is arranged on the side wall of the connecting ball (31), the adjusting ball (34) is rotatably connected with the inside of the connecting ball (31), the communicating pipe (35) penetrates through the connecting ball (31) and the adjusting ball (34), and the communicating pipe (35) is communicated with the connector (2);

the bottom end of the blood transfusion tube (4) is fixed at the top end of the connecting ball (31), and the blood transfusion tube (4) is communicated with the communicating pipe (35);

the bottom end of the needle tube (5) is communicated with the top end of the blood transfusion tube (4);

closing mechanism (6), closing mechanism (6) are contradicted defeated blood vessel (4), closing mechanism (6) include first baffle (61), second baffle (62), spacing (63) and spacing hole (64), first baffle (61) and second baffle (62) are contradicted the top lateral wall of defeated blood vessel (4), spacing (63) are fixed in the lateral wall of first baffle (61), spacing hole (64) are located the side of second baffle (62), just spacing (63) with the block is connected between spacing hole (64).

2. A new intravenous blood lancet as claimed in claim 1, characterised in that the closing means (6) further comprise a pressing plate (65), the pressing plate (65) being fixed to the side walls of the first and second flaps (61, 62), respectively.

3. A new intravenous blood lancet as claimed in claim 1, characterised in that the bottom end of the knob (32) is fixed to the side wall of the adjusting ball (34).

4. A new intravenous blood collection needle according to claim 3, characterized in that the inside of the connection ball (31) is of a hollow structure of spherical type and the diameter of the adjustment ball (34) is equal to the diameter of the hollow structure of the connection ball (31).

5. A new intravenous blood collection needle as claimed in claim 1, characterized in that the stop strip (63) presents an L-shaped structure.