CN213312454U

CN213312454U - Remaining needle device for preventing blood return

Info

Publication number: CN213312454U
Application number: CN202021429619.1U
Authority: CN
Inventors: 周一
Original assignee: Western Theater General Hospital of PLA
Current assignee: Western Theater General Hospital of PLA
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-06-01
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a prevent remaining needle device of blood return, include the hose and the device body for tee bend structure, the one end of hose is connected with the connecting pipe, the top of connecting pipe is equipped with the heparin cap, a passageway of device body is connected with the other end of hose, is equipped with base and check valve on two other passageways of device body respectively, be equipped with the needle tubing on the base, the one end that the base was kept away from to this needle tubing stretches out to the outside of device body from the check valve, the device body is close to the outside of check valve is equipped with the confession the pipe that the needle tubing passes through, the inside being close to of device body one side of base is equipped with white isolation stopper. The characteristic that the one-way valve passes through in one way is utilized, blood backflow is avoided, and the fear psychology of a patient is avoided.

Description

Remaining needle device for preventing blood return

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a prevent back blood keep somewhere needle device.

Background

At present, the use of the indwelling needle can reduce the pain of a patient caused by repeated venipuncture and the fear of needle injection, relieve the anxiety of the patient, facilitate clinical medication and emergency treatment of critical patients, relieve the workload of nurses and reduce the pain of the patient, so that the venous indwelling needle is widely applied clinically, but part of patients are easy to generate blood return when using the indwelling needle, the blood return phenomenon is caused by various reasons, after the blood return is generated, not only can extra workload be increased for medical care personnel, but also the patient can generate panic psychology, the recovery of the patient is not facilitated, the problem that the blood return of the indwelling needle is easy is solved, and the technical problem which is difficult to solve for a long time is solved.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a prevent back blood keep somewhere needle device has when keeping somewhere the needle in the use, avoids partial patient to produce the phenomenon of back blood to reduce the psychology that the patient panic, the patient's of being convenient for recovery.

The technical scheme of the utility model is that:

the utility model provides a prevent back blood's needle device that keeps somewhere, includes the hose and is tee bend structure's device body, the one end of hose is connected with the connecting pipe, the top of connecting pipe is equipped with the heparin cap, a passageway of device body is connected with the other end of hose, is equipped with base and check valve on two other passageways of device body respectively, be equipped with the needle tubing on the base, the one end that the base was kept away from to this needle tubing stretches out to the outside of device body from the check valve, the device body is close to the outside of check valve is equipped with the confession the pipe that the needle tubing passes through, the inside being close to of device body one side of base is equipped with white isolation stopper.

The working principle of the technical scheme is as follows:

when the indwelling needle is used, the needle tube and the catheter are inserted into a blood vessel together, the base is pulled out, the catheter is left in the blood vessel, and partial blood of a patient is prevented from flowing back into the indwelling needle by utilizing the characteristic of one-way passing of the one-way valve. The characteristic that the one-way valve passes through in one way is utilized, blood backflow is avoided, and the fear psychology of a patient is avoided.

In a further technical scheme, the check valve is including establishing the inside spring of device body and fixing the solid fixed ring of spring, keeping away from of spring gu fixed ring's one end is equipped with the valve, be equipped with the confession on the valve the through-hole that the needle tubing passes through, the valve is close to one side of spring articulates there is the apron, be equipped with on the inner wall of device body and block the closed ring of valve, the internal diameter of closed ring is less than the internal diameter of valve, the internal diameter of valve is less than the internal diameter of device body.

The one-way valve is arranged at the position of a larger section in the device body, after the needle tube is pulled out, the cover plate covers the through hole of the valve, and the valve cannot be opened when blood flows backwards. The function of the one-way valve is realized by a simple structure, and meanwhile, the spring is arranged in the one-way valve, so that the valve is convenient to reset.

In a further technical scheme, the connecting pipe is of a three-way structure, one channel of the connecting pipe is provided with a heparin cap, and the other channel of the connecting pipe is provided with a protective cap.

The connecting pipe is tee bend structure, and usable third passageway send the medicine, has set up the protective housing simultaneously, prevents that the connecting pipe from being contaminated when inoperative state.

In a further technical scheme, one side of the base is connected with a needle holding handle.

The needle holding handle is arranged, so that the needle tube can be conveniently taken.

In a further technical scheme, the conduit is made of a soft material.

Prevent the hard material from causing harm to the patient.

In a further technical scheme, a protective shell is sleeved on the conduit.

The protective shell is arranged to prevent the needle tube from injuring medical care personnel.

The utility model has the advantages that:

1. the characteristic of one-way passing of the one-way valve is utilized, so that blood backflow is avoided, and the fear of a patient is avoided;

2. the function of the one-way valve is realized by a simple structure, and meanwhile, the spring is arranged in the one-way valve, so that the valve is convenient to reset;

3. the connecting pipe is of a three-way structure, medicine can be fed by using a third channel, and meanwhile, the protective shell is arranged, so that the connecting pipe is prevented from being polluted in a non-working state;

4. the needle holding handle is arranged, so that the needle tube can be conveniently taken;

5. prevent the hard material from causing injury to the patient;

6. the protective shell is arranged to prevent the needle tube from injuring medical care personnel.

Drawings

FIG. 1 is a schematic view of the overall structure of an indwelling needle device for preventing blood return according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a device body according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a check valve according to an embodiment of the present invention.

Description of reference numerals:

10. a hose; 20. a connecting pipe; 21. a heparin cap; 22. a protective cap; 30. a device body; 31. a conduit; 32. a white isolating plug; 33. a protective shell; 40. a base; 41. a needle holding handle; 42. a needle tube; 50. a one-way valve; 51. a valve; 52. a spring; 53. a closed ring; 54. a fixing ring; 55. and (7) a cover plate.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example (b):

as shown in fig. 1-3, an indwelling needle device for preventing blood return includes a hose 10 and a device body 30 having a three-way structure, wherein one end of the hose 10 is connected to a connection pipe 20, a heparin cap 21 is disposed on the top of the connection pipe 20, one channel of the device body 30 is connected to the other end of the hose 10, a base 40 and a one-way valve 50 are disposed on the other two channels of the device body 30, respectively, a needle tube 42 is disposed on the base 40, one end of the needle tube 42, which is far away from the base 40, extends out of the device body 30 from the one-way valve 50, a conduit 31 for the needle tube 42 to pass through is disposed on the outer side of the device body 30, which is close to the base 40, and a white isolating plug 32 is disposed on one side of the device body 30.

The working principle of the technical scheme is as follows:

when the indwelling needle is used, the needle tube 42 and the catheter 31 are inserted into a blood vessel together, the base 40 is pulled out, the catheter 31 is left in the blood vessel, and partial blood of a patient is prevented from flowing back into the indwelling needle by utilizing the characteristic of one-way passing of the one-way valve 50, so that the fear of the patient is avoided.

In another embodiment, as shown in fig. 3, the check valve 50 includes a spring 52 disposed inside the device body 30 and a fixing ring 54 for fixing the spring 52, a valve 51 is disposed at an end of the spring 52 away from the fixing ring 54, a through hole for the needle tube 42 to pass through is disposed on the valve 51, a cover plate 55 is hinged to a side of the valve 51 close to the spring 52, a sealing ring 53 for clamping the valve 51 is disposed on an inner wall of the device body 30, an inner diameter of the sealing ring 53 is smaller than an inner diameter of the valve 51, and an inner diameter of the valve 51 is smaller than an inner diameter of the device body 30.

The check valve 50 is installed in a large cross section inside the device body 30, and after the needle tube 42 is pulled out, the cover plate 55 covers the through hole of the valve 51, and the valve 51 cannot be opened when blood flows backward. The function of the check valve 50 is realized with a simple structure, and the spring 52 is provided in the check valve 50 to facilitate the return of the valve 51.

In another embodiment, as shown in fig. 1-2, the connection tube 20 is a three-way structure, and the connection tube is a three-way structure, and one channel of the connection tube is provided with a heparin cap 21, and the other channel is provided with a protective cap 22.

The connecting pipe 20 is a three-way structure, and can utilize a third channel to deliver medicine, and meanwhile, the protective shell 33 is arranged, so that the connecting pipe 20 is prevented from being polluted in a non-working state.

In another embodiment, as shown in fig. 1-2, a needle holding handle 41 is connected to one side of the base 40.

The needle holding handle 41 is arranged to facilitate taking the needle tube 42.

In another embodiment, as shown in fig. 1-2, the conduit 31 is a soft material.

Prevent the hard material from causing harm to the patient.

In another embodiment, as shown in fig. 1-2, the catheter 31 is covered with a protective sheath 33.

The protective shell 33 is arranged to prevent the needle tube from hurting medical staff.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a prevent back blood's needle device that keeps somewhere, includes the hose, its characterized in that still includes the device body for tee bend structure, the one end of hose is connected with the connecting pipe, the top of connecting pipe is equipped with the heparin cap, a passageway of device body is connected with the other end of hose, is equipped with base and check valve on two other passageways of device body respectively, be equipped with the needle tubing on the base, the one end that the base was kept away from to this needle tubing stretches out to the outside of device body from the check valve, the device body is close to the outside of check valve is equipped with the confession the pipe that the needle tubing passes through, the inside being close to of device body one side of base is equipped with white isolation stopper.

2. The indwelling needle device for preventing blood return according to claim 1, wherein the one-way valve comprises a spring arranged inside the device body and a fixing ring for fixing the spring, a valve is arranged at one end of the spring far away from the fixing ring, a through hole for the needle tube to pass through is arranged on the valve, a cover plate is hinged to one side of the valve close to the spring, a sealing ring for clamping the valve is arranged on the inner wall of the device body, the inner diameter of the sealing ring is smaller than that of the valve, and the inner diameter of the valve is smaller than that of the device body.

3. The indwelling needle device for preventing blood return according to claim 2, wherein the connecting tube is a three-way structure, one channel of the connecting tube is provided with a heparin cap, and the other channel is provided with a protective cap.

4. The indwelling needle device of claim 3, wherein a needle holder is provided on the base.

5. The device of claim 4, wherein the catheter is made of a soft material.

6. The indwelling needle device of claim 5, wherein the catheter is covered with a protective sheath.