CN216136471U

CN216136471U - Indwelling needle capable of preventing needle from being injured by needle

Info

Publication number: CN216136471U
Application number: CN202120292300.7U
Authority: CN
Inventors: 刘文婷; 郑军; 王林; 尹丹; 周雨婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-03-29
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses an indwelling needle capable of preventing needle stick injury, which comprises an indwelling needle body, wherein the indwelling needle body consists of a positive pressure joint, an extension pipe and a three-way pipe, the bottom end of the positive pressure joint is fixedly connected with the extension pipe, the outer surface of the three-way pipe is fixedly connected with a connecting pipe, the connecting pipe and the three-way pipe are integrated into a whole, the right end of the extension pipe penetrates through the connecting pipe, the right end of the extension pipe is detachably connected with a puncture needle through an adapter, the top end of the puncture needle extends to the outside of the three-way pipe, a protecting sleeve is sleeved on the outside of the puncture needle, and the bottom end of the protecting sleeve is positioned in the three-way pipe. This prevent that acupuncture hinders keeps somewhere needle reasonable in design, the structure is firm, through its structural feature, can prevent to take place the phenomenon of blood backward flow when using, improves the security of using, and uses the impression better, has alleviateed the misery of patient, can prevent to be stabbed by the pjncture needle accident simultaneously, offers convenience for medical personnel, has the practicality very much, satisfies the market demand.

Description

Indwelling needle capable of preventing needle from being injured by needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an indwelling needle capable of preventing needle stick injuries.

Background

The venous indwelling needle is also called as venous trocar, the core components comprise a soft catheter (sleeve) which can be indwelling in a blood vessel, and a stainless steel needle guide needle core, the catheter and the needle core are punctured into the blood vessel together during use, after the catheter completely enters the blood vessel, the needle core is withdrawn, the soft catheter is only indwelling in the blood vessel for transfusion treatment, the pain of a patient caused by repeated venipuncture and the fear of injection are reduced, the workload of a nurse is reduced, the clinical medication is convenient, the emergency medication of critical patients is realized, the pain of the patient is reduced, and therefore, the venous indwelling needle is widely applied clinically.

However, the traditional remaining needle that prevents the needle stick injury simple structure, the operation is complicated, just can fix the tee joint head with the help of medical sticky tape during the use, not only it is not hard up easily, also bring the discomfort for the patient, and the tee joint head also can produce the friction with skin tissue, the misery of disease has been aggravated, and after long-time the use and patient's limbs activity, lead to blood backward flow easily, the stifled pipe phenomenon that the coagulation led to the fact in the pipe, lose the meaning of remaining needle, and simultaneously, because the pjncture needle exposes outside, breed the bacterium easily, medical personnel will stab oneself or disease carelessly a bit, the security is lower, bring inconvenience for medical personnel, be difficult to satisfy user's daily demand.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the indwelling needle for preventing the needle stick injury, which solves the problems that the traditional indwelling needle for preventing the needle stick injury has simple structure and complex operation, the tee joint head can be fixed by a medical adhesive tape during use, is easy to loosen and brings discomfort to a patient, the tee joint head can generate friction with skin tissues to aggravate the pain of the patient, blood backflow is easy to cause after long-time use and the limb movement of the patient, the tube blockage phenomenon caused by blood coagulation in a tube is easy to lose the significance of the indwelling needle, and simultaneously, bacteria are easy to breed because a puncture needle is exposed outside, medical personnel can prick themselves or the patient carelessly slightly, the safety is low, inconvenience is brought to the medical personnel, and the daily requirement of the user is difficult to meet.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a prevent needle stick and hinder keep somewhere needle, includes and keeps somewhere the needle body, it comprises malleation joint, extension pipe and three-way pipe to keep somewhere the needle body, malleation joint bottom fixed connection extension pipe, three-way pipe outside fixed surface connects the connecting pipe, the connecting pipe forms with three-way pipe an organic whole, extension pipe right-hand member runs through the connecting pipe, extension pipe right-hand member passes through the adapter can dismantle the connection pjncture needle, the pjncture needle top extends to the three-way pipe outside, the lag has been cup jointed to the pjncture needle outside, the lag bottom is located the three-way pipe inside.

Preferably, the positive pressure valve is installed on the inner wall of the top of the positive pressure joint, the isolating plug is installed inside the three-way pipe, the side face of the isolating plug is tightly attached to the inner wall of the three-way pipe, and the outer wall of the three-way pipe is fixedly connected with the needle holding handle.

Preferably, the outer surface of the bottom end of the protecting sleeve is fixedly connected with a supporting plate, the outer surface of the bottom of the supporting plate is fixedly connected with two groups of telescopic springs, the bottom ends of the telescopic springs are fixedly connected with the outer surface of the top of a fixed plate, and two ends of the fixed plate are fixedly connected with the inner wall of a three-way pipe.

Preferably, the inner wall of the three-way pipe is fixedly connected with two groups of limiting plates, and the limiting plates are positioned above the supporting plate.

Preferably, the length of the protective sleeve is larger than that of the puncture needle, the top end of the protective sleeve is provided with a needle hole, and the diameter of the needle hole is larger than that of the puncture needle.

Preferably, the outer surface of the three-way pipe is fixedly connected with a cotton base plate, aseptic cotton is filled in the cotton base plate, and the bottom of the cotton base plate is fixedly connected with a patch.

(III) advantageous effects

The utility model provides an indwelling needle capable of preventing needle stick injuries. The method has the following beneficial effects:

(1) this prevent needle-prick wounded keeping somewhere needle, connect by malleation through keeping somewhere the needle body, extension pipe and three-way pipe are constituteed, malleation joint bottom fixed connection extension pipe, three-way pipe outside fixed surface connects the connecting pipe, the connecting pipe forms with three-way pipe an organic whole, extension pipe right-hand member runs through the connecting pipe, the extension pipe right-hand member passes through the adapter can dismantle the connection pjncture needle, the pjncture needle top extends to the three-way pipe outside, malleation joint top inner wall installs the positive pressure valve, three-way pipe internally mounted has the isolation stopper, keep apart the stopper side and closely laminate with the three-way pipe inner wall, tee bend outer wall fixed connection holds the needle handle, make things convenient for medical personnel to pierce the pjncture needle in the patient's blood vessel, carry out infusion treatment, blood reflux when effectively preventing the use, at the inside stifled pipe phenomenon that solidifies that causes of extension, the security of improving the use.

(2) This prevent needle-prick hindering keep somewhere needle, the lag has been cup jointed through the pjncture needle outside, the lag bottom is located inside the three-way pipe, lag bottom surface fixed connection backup pad, backup pad bottom surface fixed connection expanding spring, expanding spring bottom fixed connection fixed plate top surface, fixed plate both ends fixed connection three-way pipe inner wall, three-way pipe inner wall fixed connection limiting plate, the limiting plate is two sets of, the limiting plate is located the backup pad top, can prevent that the pjncture needle from exposing when the bacterium is multiplied at the air internal surface, reduce and be impatied by the pjncture needle accident because of medical personnel's operation is improper, bring the facility for medical personnel, the practicality has very much.

(3) This prevent needle-prick wounded keeping somewhere needle, through the cotton backing plate of three-way pipe external surface fixed connection, the inside packing of cotton backing plate has aseptic cotton, and cotton backing plate bottom fixed connection pastes the cloth, can fix the position of three-way pipe, and is difficult not hard up, reduces the three-way pipe to patient contact position's pressure and to the friction on skin top layer, alleviates patient's misery, improves and uses the impression, satisfies user's user demand.

Drawings

FIG. 1 is a schematic view of the internal structure of the three-way joint of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a side view of the external structure of the three-way head of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1 according to the present invention.

In the figure, 1-an indwelling needle body, 2-a positive pressure joint, 3-an extension pipe, 4-a three-way pipe, 5-a connecting pipe, 6-a joint, 7-a puncture needle, 8-a protective sleeve, 9-an isolating plug, 10-a needle holding handle, 11-a supporting plate, 12-a telescopic spring, 13-a fixing plate, 14-a limiting plate, 15-a needle hole, 16-a cotton backing plate, 17-aseptic cotton, 18-a patch and 19-a positive pressure valve.

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.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: the utility model provides a prevent needle puncture's needle of keeping somewhere, is including keeping somewhere needle body 1, it comprises malleation joint 2, extension pipe 3 and three-way pipe 4 to keep somewhere

needle body

1, 2 bottom fixed connection extension pipes 3 of malleation joint, 4 outside fixed surface of three-way pipe connect pipe 5, connecting pipe 5 forms with three-way pipe 4 an organic whole, extension pipe 3 right-hand member runs through connecting pipe 5, extension pipe 3 right-hand member can dismantle through adapter 6 and connect

pjncture needle

7, 7 tops of pjncture needle extend to the three-way pipe 4 outside, 7 outsides of pjncture needle have cup jointed

lag

8, 8 bottom of lag are located inside 4 three-way pipes, and during the use, medical personnel handheld three-way pipe 4, lag 8 wraps up puncture needle 7, prevents that pjncture needle 7 from stabbing medical personnel, improves its security.

The positive pressure connector 2 top inner wall is installed and is pressed valve 19, three-way pipe 4 internally mounted has isolation stopper 9, isolation stopper 9 side and the 4 inner walls of three-way pipe are closely laminated, needle handle 10 is held to 4 outer wall fixed connection of three-way pipe, prick into patient's blood vessel with pjncture needle 7, and positive pressure connector 2, extension pipe 3 and the 9 three-way pipe 4 that are equipped with the isolation stopper form confined vacuum path, and in the positive pressure valve 19 was penetrated to the drawing liquid needle, the injection gets into in the positive pressure connector 2, introduces in the three-way pipe 4 through extension pipe 3, forms one-way flow path, effectively prevents the internal blood reflux of patient.

The outer fixed surface in the bottom of the protection sleeve 8 is connected with the supporting plate 11, the outer fixed surface in the bottom of the supporting plate 11 is connected with the extension springs 12, the extension springs 12 are two groups, the bottom of the extension springs 12 is fixedly connected with the outer surface of the top of the fixing plate 13, two ends of the fixing plate 13 are fixedly connected with the inner wall of the three-way pipe 4, when the protection sleeve is not used, the extension springs 12 are kept in a stretching state, the supporting plate 11 is driven to be close to the front end of the three-way pipe 4, the protection sleeve 8 is completely sleeved outside the puncture needle 7, the puncture needle 7 is protected, when the protection sleeve is used, the puncture needle 7 penetrates through the skin surface layer of a patient, the top end of the protection sleeve 8 is attached to the skin, the resistance retracts towards the inside of the three-way pipe 4, the extension springs 12 are driven to be compressed, and the puncture needle 7 is enabled to completely penetrate into the blood vessel of the patient.

The inner wall of the three-way pipe 4 is fixedly connected with two groups of limiting plates 14, the limiting plates 14 are located above the supporting plate 11, and the telescopic spring 12 drives the supporting plate 11 to extend upwards and touch the limiting plates 14 to stop, so that the protective sleeve 8 can be completely sleeved outside the puncture needle 7.

The length of the protective sleeve 8 is larger than that of the puncture needle 7, the needle hole 15 is formed in the top end of the protective sleeve 8, the diameter of the needle hole 15 is larger than that of the puncture needle 7, the telescopic spring 12 conveniently retracts, the protective sleeve 8 moves downwards, and the puncture needle 7 penetrates through the needle hole 15, so that subsequent injection work is facilitated.

The outer fixed surface of three-way pipe 4 connects cotton backing plate 16, cotton backing plate 16 is inside to be filled with aseptic cotton 17, cotton backing plate 16 bottom fixed connection paster 18, and cotton backing plate 16 laminates patient's peripheral skin of department of pricking, pastes through paster 18, fixes the position of three-way pipe 4, and aseptic cotton 17 reduces the pressure of three-way pipe 4 to patient's contact position and the friction to the skin top layer, alleviates patient's misery, improves the use impression.

The working principle is as follows: when the puncture needle is used, a medical worker holds the needle handle 10 by hand, the extension spring 12 is in an extension state, the supporting plate 11 is attached to the lower portion of the limiting plate 14, the puncture needle 7 is wrapped by the protective sleeve 8 to prevent the puncture needle 7 from stabbing the medical worker, after the medical worker finds a proper injection position, the needle point of the puncture needle 7 is aligned to be punctured, in the puncturing process, the puncture needle 7 penetrates through the skin surface layer of a patient, the top end of the protective sleeve 8 is attached to the outer skin, the extension spring 12 is driven to compress due to the fact that resistance retracts towards the inside of the three-way pipe 4, the puncture needle 7 penetrates through the needle hole 15 to be completely punctured into the blood vessel of the patient, the cotton cushion plate 16 is attached to the peripheral skin of the puncture position of the patient, the position of the three-way pipe 4 is fixed through the adhesive cloth 18, the aseptic cotton 17 reduces the pressure of the three-way pipe 4 on the contact position of the patient and the friction on the skin surface layer, the pain of the patient is relieved, and the use feeling is improved, after fixing and keeping somewhere needle body 1, will draw in the liquid needle and stab in positive pressure valve 19, injection liquid gets into in the malleation connects 2, introduces three-way pipe 4 through extension pipe 3 in, inputs pjncture needle 7 department, infuses for the patient, forms one-way flow path, prevents the internal blood reflux of patient.

The utility model relates to a 1-indwelling needle body, a 2-positive pressure joint, a 3-extension tube, a 4-three-way tube, a 5-connecting tube, a 6-adapter, a 7-puncture needle, an 8-protective sleeve, a 9-isolating plug, a 10-needle holding handle, a 11-supporting plate, a 12-expansion spring, a 13-fixing plate, a 14-limiting plate, a 15-needle hole, a 16-cotton backing plate, 17-aseptic cotton, 18-patch and a 19-positive pressure valve, wherein the components are all universal standard components or components known by technicians in the field, and the structure and the principle of the components can be known by technical manuals or conventional experimental methods, so that the problem solved by the utility model is that the traditional indwelling needle for preventing needle puncture has a simple structure and complex operation, and the three-way head can be fixed by means of medical adhesive tapes when in use, not only is easy to loosen and brings discomfort to patients, but also the tee joint head can rub against skin tissues to aggravate the pain of the patients, and blood backflow is easy to cause after long-time use and limb movement of the patients, the tube blockage phenomenon caused by blood coagulation in the tube loses the significance of the indwelling needle, and meanwhile, because the puncture needle is exposed outside, bacteria are easy to breed, medical personnel can stab oneself or patients by accident, the safety is low, inconvenience is brought to the medical personnel, and the daily requirement of a user is difficult to meet by the mutual combination of the components, can prevent blood backflow during use, improve the use safety, has good use feeling, relieves the pain of patients, meanwhile, the puncture needle can be prevented from being punctured accidentally, convenience is brought to medical workers, and the puncture needle has high practicability and meets market requirements.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a prevent indwelling needle that needle pricked which characterized in that: including keeping somewhere needle body (1), it comprises malleation joint (2), extension pipe (3) and three-way pipe (4) to keep somewhere needle body (1), malleation joint (2) bottom fixed connection extension pipe (3), three-way pipe (4) outside fixed surface connects connecting pipe (5), connecting pipe (5) and three-way pipe (4) an organic whole form, extension pipe (3) right-hand member runs through connecting pipe (5), extension pipe (3) right-hand member passes through adapter (6) can dismantle connection pjncture needle (7), pjncture needle (7) top extends to three-way pipe (4) outside, lag (8) have been cup jointed to pjncture needle (7) outside, lag (8) bottom is located three-way pipe (4) inside.

2. An anti-needle stick indwelling needle according to claim 1, wherein: positive pressure valve (19) are installed to positive pressure joint (2) top inner wall, three-way pipe (4) internally mounted has isolation stopper (9), isolation stopper (9) side is closely laminated with three-way pipe (4) inner wall, three-way pipe (4) outer wall fixed connection holds needle handle (10).

3. An anti-needle stick indwelling needle according to claim 1, wherein: the protecting sleeve is characterized in that a supporting plate (11) is fixedly connected to the outer surface of the bottom end of the protecting sleeve (8), telescopic springs (12) are fixedly connected to the outer surface of the bottom of the supporting plate (11), the telescopic springs (12) are two groups, the bottom end of each telescopic spring (12) is fixedly connected to the outer surface of the top of a fixing plate (13), and two ends of each fixing plate (13) are fixedly connected to the inner wall of a three-way pipe (4).

4. An anti-needle stick indwelling needle according to claim 3, wherein: the inner wall of the three-way pipe (4) is fixedly connected with two groups of limiting plates (14), and the limiting plates (14) are positioned above the supporting plate (11).

5. An anti-needle stick indwelling needle according to claim 1, wherein: the length of the protective sleeve (8) is greater than that of the puncture needle (7), the top end of the protective sleeve (8) is provided with a needle hole (15), and the diameter of the needle hole (15) is greater than that of the puncture needle (7).

6. An anti-needle stick indwelling needle according to claim 1, wherein: the outer surface of the three-way pipe (4) is fixedly connected with a cotton cushion plate (16), sterile cotton (17) is filled in the cotton cushion plate (16), and the bottom of the cotton cushion plate (16) is fixedly connected with a patch (18).