CN215914608U

CN215914608U - Safety blood taking needle applied to internal fistula puncture

Info

Publication number: CN215914608U
Application number: CN202120146792.9U
Authority: CN
Inventors: 王文燕; 周燕; 杨萍萍; 贡惠芳; 何亚岚
Original assignee: Affiliated Hospital of Jiangsu University
Current assignee: Affiliated Hospital of Jiangsu University
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2022-03-01
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a safety blood taking needle applied to internal fistula puncture, which comprises a catheter, wherein needle wings are sleeved on the surface of one end of the catheter, the number of the needle wings is two, the needle wings are respectively arranged on two sides of the catheter, a connector is arranged between the two needle wings, one end of the catheter is connected with a needle head, a lantern ring is arranged on the surface of the catheter in a surrounding manner, a catheter fixing paste is arranged on one side of the lantern ring, the catheter fixing paste is fixedly arranged on the surfaces of the two sides of the catheter, and the other end of the catheter is connected with a control valve. The utility model is provided with a lantern ring, needle wings and a catheter fixing paste, the catheter is integrally positioned by using the catheter fixing paste according to the required puncture position and then is punctured by using a needle head, the needle wings are rotated to combine the two needle wings and then wrap the catheter from the outer side to integrally fix the catheter, then the lantern ring is moved and is fixedly adhered to the catheter fixing paste by an elastic rope on the outer side of the lantern ring, the other side of the elastic rope is fixedly connected with an external bracket, and the catheter can be integrally positioned by a plurality of directions and positions.

Description

Safety blood taking needle applied to internal fistula puncture

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a safety blood taking needle applied to internal fistula puncture.

Background

When general maintenance hemodialysis internal fistula puncture patient need to stay and get blood sample, before the hemodialysis patient went on the hemodialysis treatment, after carrying out internal fistula vascular aassessment, internal fistula puncture in advance and judge whether unobstructed back of internal fistula puncture, open the tail end of internal fistula pjncture needle, open the rubber stopper of vacuum blood sampling test tube immediately, draw blood to the open in vitro through internal fistula pjncture needle hose.

A puncture needle for hemodialysis of patient is composed of a puncture needle tube, a needle holder, a needle tube and a needle tube. Although the safety blood taking needle is widely applied to hemodialysis, the safety blood taking needle still has many defects and shortcomings in the using process, the puncture part needs to be punctured according to the disease conditions of different patients, the same puncture needle is easy to shake to influence the blood taking work, in addition, the blood taking needle can fall off in the blood taking process, and if the blood is not processed in time, the blood loss of the patients can be caused and more serious potential safety hazards can be generated, so that the safety blood taking needle applied to internal fistula puncture is necessary.

SUMMERY OF THE UTILITY MODEL

To overcome the above-mentioned deficiencies of the prior art, embodiments of the present invention provide a safety lancet for use in internal fistula puncture.

In order to achieve the purpose, the utility model provides the following technical scheme: be applied to safe type blood taking needle of internal fistula puncture, including the pipe, pipe one end surface cup joints and is equipped with the needle wing, needle wing quantity sets up to two and sets up respectively in the pipe both sides, two be equipped with the interface between the needle wing, pipe one end is connected with the syringe needle, the pipe surface encircles and is equipped with the lantern ring, lantern ring one side is equipped with the fixed subsides of pipe, the fixed setting in pipe both sides surface of pasting of pipe, the pipe other end connection is equipped with the control valve, the control valve outside intercommunication is equipped with the outer takeover, the inside inner tube that is equipped with of pipe, the inner tube communicates with syringe needle and control valve respectively, the syringe needle outside matches and is equipped with the syringe needle cover.

In a preferred embodiment, a protective ring is arranged around the outer side of the inner pipe, and a pressure sensor is uniformly arranged between the protective ring and the guide pipe.

In a preferred embodiment, the needle wing is made of an elastic material and is slidably connected with the interface, the interface is sleeved with the catheter, the needle cover is inserted into the interface, and the top surfaces of the two interfaces are respectively provided with a convex block and a positioning groove which are matched with each other.

In a preferred embodiment, the needle is provided with a chamfer at one end, and the chamfer is internally provided with a back hole.

In a preferred embodiment, a connecting ring is fixedly connected to the outer side of the lantern ring, and an elastic rope is sleeved inside the connecting ring.

In a preferred embodiment, the surface of the catheter fixing sticker is provided with a buzzer, the rear side surface of the catheter fixing sticker is provided with a data transmission module, the output end of the pressure sensor is communicated with the input end of the data transmission module, and the buzzer is connected with the data transmission module through a transmission cable.

The utility model has the technical effects and advantages that:

1. the utility model is provided with the lantern ring, the needle wings and the catheter fixing paste, before use, the catheter fixing paste is used for integrally positioning the catheter according to the required puncture position and then the needle is used for puncturing, then the needle wings are rotated to combine the two needle wings and then coat the catheter from the outer side to integrally fix the catheter, then the lantern ring is moved and is fixedly pasted with the catheter fixing paste through the elastic rope on the outer side of the lantern ring, the other side of the elastic rope can also be connected and fixed with an external bracket, the catheter can be integrally positioned through a plurality of directions and positions, and the situations that the blood diversion is influenced by the integral stability of the catheter in the blood sampling process are ensured;

2. through being equipped with the pipe, bee calling organ and syringe needle cover, syringe needle cover protects the syringe needle and prevents the syringe needle pollution in the interface outside, the guard circle protects the inside blood of inner tube in transmission process and avoids breaking, simultaneously at the transmission of blood sampling in-process pressure sensor to the inner tube monitor, in time sound through the fixed data transmission module control bee calling organ that pastes the outside of pipe under the too big condition of pressure change appearing and remind medical personnel to look over, can avoid the accident that the blood sampling in-process probably takes place, guarantee patient's health safety.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the catheter of the present invention.

Fig. 3 is a schematic view of the structure of the needle wing of the present invention.

Fig. 4 is a schematic view of the structure of the needle head of the present invention.

The reference signs are: the device comprises a catheter 1, an inner tube 11, a protective ring 12, a pressure sensor 13, a needle wing 2, a port 21, a convex block 22, a positioning groove 23, a needle 3, a chamfer 31, a back hole 32, a lantern ring 4, a connecting ring 41, an elastic rope 42, a catheter fixing paste 5, a buzzer 51, a control valve 6, an external connecting tube 7 and a needle cover 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The safety blood taking needle applied to internal fistula puncture shown in the figures 1-4 comprises a catheter 1, needle wings 2 are sleeved on the surface of one end of the catheter 1, the number of the needle wings 2 is two and are respectively arranged on two sides of the catheter 1, a connector 21 is arranged between the two needle wings 2, one end of the catheter 1 is connected with a needle head 3, a lantern ring 4 is arranged on the surface of the catheter 1 in a surrounding mode, a catheter fixing paste 5 is arranged on one side of the lantern ring 4, the catheter fixing paste 5 is fixedly arranged on the surfaces of two sides of the catheter 1, a control valve 6 is connected to the other end of the catheter 1, an external connecting pipe 7 is communicated with the outer side of the control valve 6, an inner tube 11 is arranged inside the catheter 1, the inner tube 11 is respectively communicated with the needle head 3 and the control valve 6, and a needle head sleeve 8 is arranged on the outer side of the needle head 3 in a matching mode.

A protective ring 12 is arranged around the outer side of the inner pipe 11, pressure sensors 13 are uniformly arranged between the protective ring 12 and the catheter 1, and the model of the pressure sensors 13 is PR 3913.

The needle wings 2 are made of elastic materials and are in sliding connection with the interface 21, the interface 21 is sleeved with the catheter 1, the needle cover 8 is inserted into the interface 21, the top surfaces of the two interfaces 21 are respectively provided with a convex block 22 and a positioning groove 23, the convex block 22 is matched with the positioning groove 23, the needle cover 8 is sleeved outside the interface 21 to protect the needle 3 to prevent the needle 3 from being polluted, the needle wings 2 are rotated to combine the two needle wings 2, and then the catheter 1 is covered by the outer side of the needle cover to integrally fix the catheter 1.

One end of the needle head 3 is provided with a bevel face 31, a back hole 32 is arranged inside the bevel face 31, and the bevel face 31 is inserted into a small hole inside the back hole 32 at the blood sampling part for blood sampling and transmission during blood sampling.

The lantern ring 4 outside fixed connection is equipped with go-between 41, and go-between 41 is inside to cup joint and be equipped with elasticity rope 42, removes lantern ring 4 and pastes fixedly with the fixed subsides 5 of pipe through the elasticity rope 42 in the lantern ring 4 outside, also can connect fixedly with elasticity rope 42 opposite side to external support.

The fixed 5 surfaces of pasting of pipe is equipped with bee calling organ 51, the fixed 5 rear side surfaces of pasting of pipe are equipped with data transmission module, pressure sensor 13 output and data transmission module input intercommunication, bee calling organ 51 passes through the transmission cable and is connected with data transmission module, pressure sensor 13 monitors the transmission of inner tube 11 in the blood sampling in-process, in time sound through the data transmission module control bee calling organ 51 in the fixed 5 outside of pasting of pipe under the too big condition of pressure change appearing and remind medical personnel to look over, can avoid the accident that the blood sampling in-process probably takes place, guarantee patient's health safety.

The working principle of the utility model is as follows:

referring to the description figures 1, 2 and 3: the needle cover 8 is sleeved outside the interface 21 to protect the needle 3 to prevent the needle 3 from being polluted, before use, the catheter 1 is integrally positioned by using the catheter fixing paste 5 according to a required puncture position and then punctured by using the needle, then the needle wings 2 are rotated to combine the two needle wings 2 and then the catheter 1 is covered by the outer side to integrally fix the catheter 1, then the lantern ring 4 is moved and is pasted and fixed with the catheter fixing paste 5 through the elastic rope 42 on the outer side of the lantern ring 4, the other side of the elastic rope 42 can also be connected and fixed with an external bracket, the catheter 1 can be integrally positioned in multiple directions and positions, and the situations that the blood diversion is influenced by the integral stability of the catheter 1 in the blood sampling process are ensured;

referring to the description figures 1, 2 and 4: insert the inside aperture of blood sampling position back hole 32 by scarf 31 during the blood sampling and transmit, guard circle 12 protects the inside blood of transmission in-process inner tube 1 and avoids breaking, simultaneously monitor the transmission of inner tube 11 at blood sampling in-process pressure sensor 13, in time sound through the data transmission module control bee calling organ 51 in the fixed subsides 5 outsides of pipe under the too big condition of pressure change appearing and remind medical personnel to look over, can avoid the accident that the blood sampling in-process probably takes place, guarantee patient's health safety.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. Be applied to safe type blood taking needle of internal fistula puncture, including pipe (1), its characterized in that: pipe (1) one end surface cup joints and is equipped with needle wing (2), needle wing (2) quantity sets up to two and sets up respectively in pipe (1) both sides, two be equipped with interface (21) between needle wing (2), pipe (1) one end is connected with syringe needle (3), pipe (1) surface is encircleed and is equipped with the lantern ring (4), lantern ring (4) one side is equipped with pipe fixed subsides (5), pipe fixed subsides (5) are fixed to be set up in pipe (1) both sides surface, pipe (1) other end is connected and is equipped with control valve (6), control valve (6) outside intercommunication is equipped with outer takeover (7), pipe (1) inside is equipped with inner tube (11), inner tube (11) communicate with syringe needle (3) and control valve (6) respectively, syringe needle (3) outside matching is equipped with syringe needle cover (8).

2. The safety blood collection needle applied to internal fistula puncture according to claim 1, wherein: the outer side of the inner pipe (11) is provided with a protective ring (12) in a surrounding mode, and pressure sensors (13) are uniformly arranged between the protective ring (12) and the guide pipe (1).

3. The safety blood collection needle applied to internal fistula puncture according to claim 1, wherein: the needle wing (2) is made of elastic materials and is in sliding connection with the interface (21), the interface (21) is sleeved with the guide tube (1), the needle cover (8) is inserted into the interface (21), the top surface of the interface (21) is provided with a convex block (22) and a positioning groove (23), and the convex block (22) is matched with the positioning groove (23).

4. The safety blood collection needle applied to internal fistula puncture according to claim 1, wherein: one end of the needle head (3) is provided with a chamfer (31), and a back hole (32) is formed in the chamfer (31).

5. The safety blood collection needle applied to internal fistula puncture according to claim 1, wherein: the lantern ring (4) outside fixed connection is equipped with go-between (41), go-between (41) inside cup joints and is equipped with elasticity rope (42).

6. The safety blood collection needle applied to internal fistula puncture according to claim 2, wherein: the fixed (5) surface of pasting of pipe is equipped with bee calling organ (51), the fixed (5) rear side surface of pasting of pipe is equipped with data transmission module, pressure sensor (13) output and data transmission module input intercommunication, bee calling organ (51) are connected with data transmission module through the transmission cable.