CN211561385U

CN211561385U - Puncture needle for preventing blood bag puncture

Info

Publication number: CN211561385U
Application number: CN201921364808.2U
Authority: CN
Inventors: 左江涛; 许大巍; 李海宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-09-25
Anticipated expiration: 2029-08-22

Abstract

The utility model belongs to the technical field of medical treatment, and discloses a puncture needle for preventing puncture of a blood bag, which comprises a puncture component and a protective component, wherein the puncture component comprises a needle head and a transfusion tube, the needle head is fixedly connected with the top of the transfusion tube, a connecting head sleeve is arranged in the middle of the needle head and is fixedly connected with the needle head, a protective rod sleeve is arranged on the outer surface of the connecting head and is slidably connected with the connecting head, the bottom of the connecting head is fixedly connected with a spring, the spring is sleeved on the outer surface of the needle head, the bottom of the spring is fixedly connected with the inner wall of the protective rod, when the needle head is extruded into the blood bag, the needle head contracts towards the inner part of the protective rod under the resistance action of the blood bag, and extrudes the spring to shorten until the spring shortens to the shortest, at the moment, the length of the needle head exposed out of the protective rod, the problem that blood and blood products are wasted due to the fact that a blood bag is easily punctured due to the fact that a traditional needle is too long is solved.

Description

Puncture needle for preventing blood bag puncture

Technical Field

The utility model belongs to the technical field of the medical treatment, especially, relate to a pjncture needle of blood bag is punctureed in prevention.

Background

The puncture needle is a medical instrument for sampling and injecting tissues of various organs such as kidney, liver, lung, mammary gland, thyroid gland, prostate, pancreas, testis, uterus, ovary, body surface and the like in minimally invasive surgery.

The puncture needle is relatively sharp, and the needle head is generally relatively thin and long for the convenience of puncture, and the blood bag is easy to puncture in the process of puncturing the blood bag, so that the blood and blood products inside the blood bag flow out.

SUMMERY OF THE UTILITY MODEL

The utility model provides a puncture needle of blood bag is punctureed in prevention aims at solving the puncture needle because the syringe needle is comparatively sharp-pointed, and for the puncture convenience, its syringe needle is general comparatively long and thin, carries out the in-process of puncturing to the blood bag, punctures the blood bag easily, leads to the inside blood of blood bag and the problem that blood products flowed.

The utility model discloses a realize like this, a pjncture needle of blood bag is punctureed in prevention, including puncture subassembly and protection component, puncture subassembly includes syringe needle and transfer line, syringe needle fixed connection in the top of transfer line, and with the transfer line is linked together, protection component includes fender rod, connector and spring, the connector cover is established the surface of syringe needle, and with syringe needle fixed connection, the fender rod cover is established the surface of connector, and with connector sliding connection, the spring housing is established the bottom of syringe needle, the top of spring with connector fixed connection, the bottom of spring with fender rod inner wall fixed connection.

Preferably, the puncture assembly further comprises a vent pipe and an air filter valve, the vent pipe is fixedly connected to the side surface of the needle head and communicated with the needle head, and the air filter valve is fixedly connected to the bottom end of the vent pipe.

Preferably, a plurality of fine through holes are formed in the air filter valve, and the air filter valve is communicated with the vent pipe through the fine through holes.

Preferably, the side surface of the needle head is provided with an air hole for guiding external air into the blood bag and balancing the air pressure in the blood bag.

Preferably, the guard bar is of a cylindrical structure, a cavity is arranged in the guard bar, the inner diameter of the cavity is larger than the diameter of the top opening of the cavity, and a penetrating hole is formed in the bottom of the cavity of the guard bar.

Preferably, the outer surface of the infusion tube is sleeved with a positioning sleeve, the positioning sleeve is annular, and the diameter of the positioning sleeve is larger than the inner diameter of a penetrating hole formed in the bottom of the protection rod.

Preferably, the side surface of the protection rod is provided with a sliding chute, two ends of the sliding chute are arc-shaped, and the diameter of the arc is equal to that of the vent pipe.

Preferably, the diameter of the needle increases from top to bottom, and the inside of the needle is hollow.

Compared with the prior art, the beneficial effects of the utility model are that: the puncture needle for preventing puncture of a blood bag of the utility model is provided with the needle head, the protective rod, the connector and the spring, the connector sleeve is arranged in the middle of the needle head, and is fixedly connected with the needle head, the protective rod is sleeved on the outer surface of the connector and is connected with the connector in a sliding way, the spring is fixedly connected with the bottom of the connector, the spring is sleeved on the outer surface of the needle head, the bottom of the spring is fixedly connected with the inner wall of the protection rod, when the needle head is pressed towards the interior of the blood bag, the needle head is contracted towards the interior of the protective rod under the resistance action of the blood bag, and the spring is extruded to be shortened until the spring is shortened to the shortest, and the length of the needle exposed out of the protective rod is greatly shortened, so that the problem that blood and blood products thereof are wasted due to the fact that a blood bag is easily punctured due to the fact that a traditional needle is too long is solved.

It should be understood that the foregoing is a preferred embodiment of the present invention, and it should be noted that modifications and decorations can be made by those skilled in the art without departing from the principle of the present invention, and these modifications and decorations are also considered to be the protection scope of the present invention.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic connection diagram of the present invention;

fig. 3 is a schematic connection diagram of the present invention.

In the figure: 1. a puncture assembly; 11. a needle head; 12. a breather pipe; 13. a gas filtering valve; 14. a transfusion tube; 15. air holes; 2. a guard assembly; 21. a guard bar; 22. a positioning sleeve; 23. a connector; 24. a spring; 25. a chute.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a solution: the utility model provides a pjncture needle of blood bag is punctureed in prevention, including puncture subassembly 1 and protective assembly 2, puncture subassembly 1 includes syringe needle 11 and

transfer line

14, 11 fixed connection in the top of transfer line 14 of syringe needle, and be linked together with transfer line 14, protective assembly 2 includes fender rod 21, connector 23 and spring 24, connector 23 cover is established at syringe needle 11's surface, and with 11 fixed connection of syringe needle, the surface at connector 23 is established to fender rod 21 cover, and with connector 23 sliding connection, the bottom at syringe needle 11 is established to 24 covers of spring, the top and the connector 23 fixed connection of spring 24, the bottom and the 21 inner wall fixed connection of fender rod of spring 24.

In this embodiment, the middle of the needle 11 is sleeved with a connector 23, the needle 11 at the bottom of the connector 23 is sleeved with a spring 24, the top of the spring 24 is fixedly connected with the bottom of the connector 23, the outer surface of the connector 23 is sleeved with a guard bar 21, the guard bar 21 is hollow inside, the needle 11 is slidably connected with the inner cavity of the guard bar 21 through the connector 23, the bottom of the spring 24 is fixedly connected with the bottom of the inner cavity of the guard bar 21, the bottom of the guard bar 21 is provided with a penetration hole, the infusion tube 14 penetrates through the guard bar 21 through the penetration hole and is fixedly connected with the needle 11, when in use, the needle 11 is aligned with the bottom of the blood bag to keep the needle 11 perpendicular to the bottom of the blood bag, then the guard bar 21 is pressed upwards to insert the needle 11 into the blood bag, when the needle 11 punctures the blood bag, the spring 24 is pressed and shrinks towards the inside of the, until the spring 24 is extruded to a critical point, the length of the needle 11 exposed outside the protective rod 21 is greatly reduced, and the problem that blood and blood products inside the blood bag flow out due to the fact that the needle 11 punctures the blood bag in a blood bag puncturing process due to the fact that the needle is long is solved.

In this embodiment, the middle of the needle 11 is sleeved with a connector 23, the needle 11 at the bottom of the connector 23 is sleeved with a spring 24, the top of the spring 24 is fixedly connected with the bottom of the connector 23, the outer surface of the connector 23 is sleeved with a guard bar 21, the guard bar 21 is hollow inside, the needle 11 is slidably connected with the inner cavity of the guard bar 21 through the connector 23, the bottom of the spring 24 is fixedly connected with the bottom of the inner cavity of the guard bar 21, the bottom of the guard bar 21 is provided with a penetration hole, the infusion tube 14 penetrates through the guard bar 21 through the penetration hole and is fixedly connected with the needle 11, when in use, the needle 11 is aligned with the bottom of the blood bag to keep the needle 11 perpendicular to the bottom of the blood bag, then the guard bar 21 is pressed upwards to insert the needle 11 into the blood bag, when the needle 11 punctures the blood bag, the spring 24 is pressed and shrinks towards the inside of the, until the spring 24 is extruded to the critical point, the length of the needle 11 exposed outside the protection rod 21 is greatly reduced at the moment, the problem that the blood and blood products inside the blood bag flow out due to the fact that the needle penetrates the blood bag longer in the process of puncturing the blood bag by the needle 11 is avoided, the sliding groove 25 is formed in the side face of the protection rod 21, the vent pipe 12 penetrates through the sliding groove 25 and is fixedly connected with the needle 11, one end, far away from the needle 11, of the vent pipe 12 is fixedly connected with the air filter 13, a plurality of fine through holes are formed in the air filter 13 and are used for being communicated with external air, the external air can enter the blood bag through the vent holes 15 formed in the tops of the vent pipe 12 and the needle 11, the internal and external air pressures of the blood bag are balanced, and the.

Furthermore, the puncture assembly 1 further comprises a vent pipe 12 and a gas filter 13, the vent pipe 12 is fixedly connected to the side surface of the needle 11 and is communicated with the needle 11, and the gas filter 13 is fixedly connected to the bottom end of the vent pipe 12.

In this embodiment, the vent tube 12 and the air filter 13 are provided for introducing the external air into the needle 11 through the vent tube 12 and introducing the air into the blood bag through the air hole formed in the needle 11, so that the air pressure inside the blood bag is the same as the external air pressure, thereby facilitating the discharge of the blood and blood products inside the blood bag.

Further, a plurality of fine through holes are formed in the air filter valve 13, and the air filter valve 13 is communicated with the vent pipe 12 through the fine through holes.

In the present embodiment, a fine through hole is formed inside the air filter 13 to prevent dust and bugs in the air from entering the air tube 12 through the air filter 13 and finally entering the blood bag along the air tube 12 and the needle 11 to pollute the blood and blood products inside the blood bag.

Further, the side of the needle 11 is provided with an air hole 15 for guiding external air into the blood bag to balance the air pressure inside the blood bag.

In the present embodiment, the side surface of the needle 11 is provided with an air hole 15 for introducing external air into the blood bag to balance the air pressure inside the blood bag, so that the air pressure inside the blood bag is consistent with the external air pressure, thereby facilitating the discharge of blood and blood products inside the blood bag.

Further, the guard bar 21 is a cylindrical structure, a cavity is arranged in the guard bar, the inner diameter of the cavity is larger than the diameter of the top opening of the cavity, and a penetrating hole is formed in the bottom of the cavity of the guard bar 21.

In the present embodiment, a cavity is formed inside the protection rod 21 for accommodating the spring 24, the inner diameter of the cavity is larger than the diameter of the top opening of the cavity, so that the connector 23 is prevented from sliding out of the top of the protection rod 21, a penetration hole is formed at the bottom of the cavity of the protection rod 21, and the infusion tube 14 penetrates through the protection rod 21 through the penetration hole and is fixedly connected with the bottom of the needle 11.

Furthermore, the outer surface of the infusion tube 14 is sleeved with a positioning sleeve 22, the positioning sleeve 22 is annular, and the diameter of the positioning sleeve 22 is larger than the inner diameter of a penetrating hole formed at the bottom of the protection rod 21.

In this embodiment, the positioning sleeve 22 is annular, and the diameter of the positioning sleeve 22 is larger than the inner diameter of the through hole formed at the bottom of the protection rod 21, so that the needle 11 is limited inside the protection rod 21 by the positioning sleeve 22 and the spring 24, and the needle 11 slides out from the top of the protection rod 21 under the action of the spring 24.

Furthermore, the side surface of the guard bar 21 is provided with a sliding groove 25, and two ends of the sliding groove 25 are arc-shaped, and the diameter of the arc is equal to that of the vent pipe 12.

In the present embodiment, a slide groove 25 is formed on a side surface of the guard bar 21, the vent pipe 12 is fixedly connected to the needle 11 inside by passing through the guard bar 21 through the slide groove 25, and both ends of the slide groove 25 are formed in an arc shape having a diameter equal to that of the vent pipe 12, so that the vent pipe 12 can slide up and down along the slide groove 25.

Further, the diameter of the needle 11 increases from top to bottom, and the inside of the needle 11 is hollow.

In the present embodiment, the diameter of the needle 11 increases from top to bottom, so that the top of the needle is sharp, which is convenient for inserting into the blood bag, and the inside of the needle 11 is hollow, and the blood plasma flows into the infusion tube 14 through the hollow tube inside the needle 11, so as to lead the blood and the blood products out of the blood bag.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A puncture needle for preventing a blood bag from being punctured, which comprises a puncture component (1) and a protective component (2), it is characterized in that the puncture component (1) comprises a needle (11) and a transfusion tube (14), the needle (11) is fixedly connected with the top of the transfusion tube (14), and is communicated with the infusion tube (14), the protection component (2) comprises a protection rod (21), a connector (23) and a spring (24), the connector (23) is sleeved on the outer surface of the needle head (11), and is fixedly connected with the needle head (11), the protective rod (21) is sleeved on the outer surface of the connector (23), and is connected with the connector (23) in a sliding way, the spring (24) is sleeved at the bottom of the needle head (11), the top of spring (24) with connector (23) fixed connection, the bottom of spring (24) with guard bar (21) inner wall fixed connection.

2. A puncture needle for preventing a blood bag from being punctured according to claim 1, wherein the puncture assembly (1) further comprises a vent tube (12) and a gas filter valve (13), the vent tube (12) is fixedly connected to the side of the needle (11) and is communicated with the needle (11), and the gas filter valve (13) is fixedly connected to the bottom end of the vent tube (12).

3. A puncture needle for preventing a blood bag from being punctured according to claim 2, wherein the air filter valve (13) is formed with a plurality of fine through holes inside, and the air filter valve (13) is communicated with the vent tube (12) through the fine through holes.

4. A puncture needle for preventing a blood bag from being punctured as claimed in claim 1, wherein the needle (11) is provided with an air hole (15) on a side surface thereof for introducing external air into the blood bag to equalize air pressure inside the blood bag.

5. A puncture needle for preventing a blood bag from being punctured according to claim 1, wherein the protection rod (21) has a cylindrical structure, a hollow cavity is formed in the protection rod, the inner diameter of the hollow cavity is larger than the diameter of the top opening of the hollow cavity, and a penetrating hole is formed in the bottom of the hollow cavity of the protection rod (21).

6. A puncture needle for preventing a blood bag from being punctured according to claim 5, wherein a positioning sleeve (22) is sleeved on the outer surface of the infusion tube (14), the positioning sleeve (22) is annular, and the diameter of the positioning sleeve (22) is larger than the inner diameter of a penetrating hole formed in the bottom of the protection rod (21).

7. A puncture needle for preventing a blood bag from being punctured according to claim 2, wherein a sliding groove (25) is formed in a side surface of the protection rod (21), both ends of the sliding groove (25) are formed in an arc shape, and the diameter of the arc is equal to that of the vent tube (12).

8. A puncture needle for preventing a blood bag from being punctured as set forth in claim 1, wherein the diameter of said needle (11) increases from top to bottom, and the inside of said needle (11) is hollow.