CN112494750A - Venous indwelling needle anti-leakage device for nursing - Google Patents

Abstract

The invention relates to the technical field of medical instruments, in particular to a venous indwelling needle anti-leakage device for nursing, which comprises a needle seat and a puncture needle, wherein the puncture needle is positioned in an inner cavity of the needle seat, the puncture needle extends to the right side of the needle seat, the right end of the needle seat is fixedly provided with an infusion port, the infusion port is communicated with the inner cavity of the needle seat, the right side of the infusion port is integrally processed with a catheter, and the puncture needle is positioned in the catheter; the venous indwelling needle has the advantages that through the arrangement of the transfusion port, the guide pipe, the connecting seat, the needle holding handle, the isolating plug, the extension pipe and the anti-seepage mechanism, the safety performance is better, the liquid leakage can be prevented, the working strength of medical staff is reduced, the blood backflow can be prevented, the practicability of the venous indwelling needle can be further improved, and the problems that the safety performance of the existing venous indwelling needle for nursing is poor, the gap cannot be closed in time after the puncture needle is pulled out, the venous indwelling needle is prone to leakage, and the inconvenience is brought to the medical staff are solved.

Description

Venous indwelling needle anti-leakage device for nursing

Technical Field

The invention relates to the technical field of medical instruments, in particular to a venous indwelling needle anti-leakage device for nursing.

Background

With the rapid development of medical science, the venous indwelling needle capable of relieving the pain of repeated puncture of a patient is widely applied to rescue and transfusion of critical patients, patients with high nutrition in veins and patients with intermittent application of antibiotics or other medicines in veins. The venous indwelling needle comprises a puncture needle and a cannula. After the puncture needle is punctured into the vein of a patient with the sleeve, the puncture needle is pulled out, the sleeve is left in the body, and the outer end of the sleeve is connected with an infusion device or a blood sampling device. The venous indwelling needle can be used for conventional venous transfusion and can be used for intermittent repeated blood sampling, so that the pain of a patient caused by repeated puncture is avoided, the vein of the patient is protected, and the working efficiency of nurses can be improved.

The current nursing is relatively poor with the security performance of vein indwelling needle, the back space can not in time be closed after the pjncture needle is extracted, lead to the vein indwelling needle the easy condition that the seepage appears of, it is inconvenient to have brought for medical staff's use, and patient's blood flows back easily and causes the secondary injury, can't satisfy the in-service use demand, we propose a security performance for this reason better, can prevent the liquid seepage, reduce medical staff's working strength, and can prevent the blood backward flow, and then can promote the leak protection device of vein indwelling needle practicality and solve this problem.

Disclosure of Invention

The invention aims to provide a venous indwelling needle anti-leakage device for nursing, which has the advantages of better safety performance, capability of preventing liquid leakage, reduction of the working strength of medical staff, capability of preventing blood from flowing back and further capability of improving the practicability of the venous indwelling needle, and solves the problems that the safety performance of the conventional venous indwelling needle for nursing is poor, the gap cannot be closed in time after a puncture needle is pulled out, the venous indwelling needle is easy to leak, the use of the medical staff is inconvenient, and the blood of a patient is easy to flow back to cause secondary injury.

In order to achieve the purpose, the invention provides the following technical scheme: a venous indwelling needle anti-leakage device for nursing comprises a needle seat and a puncture needle, wherein the puncture needle is positioned in an inner cavity of the needle seat, the puncture needle extends to the right side of the needle seat, an infusion port is fixedly arranged at the right end of the needle seat and is communicated with the inner cavity of the needle seat, a catheter is integrally processed at the right side of the infusion port, the puncture needle is positioned in the catheter, a connecting seat is arranged at the left side of the inner cavity of the needle seat and is in sliding connection with the inner wall of the needle seat, a connecting block is arranged in the connecting seat, the puncture needle penetrates into the connecting seat and is mutually installed with the connecting block, a connecting plate is fixedly arranged at the left side of the connecting seat, a needle holding handle is arranged at the top of the needle seat and is fixedly connected with the connecting plate, an isolating plug is arranged at the right side of the inner cavity of the, an extension tube is arranged at the bottom of the sealing joint, a cylinder is fixedly arranged on the right side of the inner cavity of the needle seat, and an anti-seepage mechanism is arranged inside the cylinder.

Preferably, seepage prevention mechanism includes adapter sleeve, baffle and elasticity valve clack, the adapter sleeve is located the center department of drum inner chamber, the pjncture needle is located the inside of adapter sleeve, and the inner wall sliding connection of pjncture needle and adapter sleeve, the baffle is located between adapter sleeve and the drum, and the baffle is located around the adapter sleeve respectively, elasticity valve clack fixed mounting is in the outside of adapter sleeve, and the inner wall laminating of elasticity valve clack and drum.

Preferably, the fixed surface of the connecting seat is provided with a guide block, the guide block is respectively positioned around the connecting seat and is attached to the connecting plate, the inner wall of the needle seat is provided with a guide groove, and the guide block is positioned in the guide groove and is in sliding connection with the inner wall of the guide groove.

Preferably, a plurality of spacing grooves have been seted up on the surface of isolation stopper, and the spacing groove is the annular and distributes, the inner wall fixed mounting of needle file has the stopper, the stopper be located the inside of spacing groove and with the inner wall sliding connection of spacing groove.

Preferably, a through hole is formed in the center of the isolation plug, the puncture needle is located inside the through hole, and the puncture needle is connected with the inner wall of the through hole in a sliding mode.

Preferably, the fixed surface of infusion mouth installs the go-between, the outside cover of infusion mouth is equipped with the needle cap, and the length of needle cap is greater than the length of pipe, the needle cap passes through the joint between go-between and the infusion mouth joint.

Preferably, the front side and the rear side of the needle holding handle are both provided with anti-slip strips, the needle holding handle is connected with the needle base in a sliding mode, the number of the anti-slip strips is a plurality, and the anti-slip strips are arranged uniformly.

Preferably, the sealing joint is positioned between the cylinder and the isolating plug, and the extension tube is communicated with the inner cavity of the needle seat through the sealing joint.

Compared with the prior art, the invention has the following beneficial effects:

1. through the arrangement of the transfusion port, the catheter, the connecting seat, the needle holding handle, the isolating plug, the extension tube and the anti-seepage mechanism, the venous indwelling needle has the advantages of better safety performance, capability of preventing liquid from leaking, reducing the working strength of medical staff and preventing blood from flowing back, thereby further improving the practicability of the venous indwelling needle, and solves the problems that the safety performance of the existing venous indwelling needle for nursing is poor, the gap cannot be closed in time after a puncture needle is pulled out, the venous indwelling needle is easy to leak, and the inconvenience is brought to the medical staff;

2. according to the invention, through the arrangement of the connecting sleeve, the partition plate and the elastic valve clack, the cylinder can have a one-way conduction effect, leakage can be prevented during transfusion, blood backflow can be prevented from entering an inner cavity of the needle seat, a guiding effect can be achieved through the arrangement of the guide block and the guide groove, the connecting seat can be conveniently installed and pulled out, the deviation of the moving track of the connecting seat is prevented, the isolating plug can be fixed through the arrangement of the limiting groove and the limiting block, the isolating plug is prevented from shielding the sealing joint, and meanwhile, liquid leakage can be prevented from flowing out of the needle seat;

3. the invention can limit the puncture needle by arranging the through hole, provides convenience for the extraction of the puncture needle, automatically closes the through hole to prevent liquid leakage when the puncture needle is extracted, can increase the safety of the vein indwelling needle by arranging the connecting ring and the needle cap, avoids the injury of the vein indwelling needle to medical personnel, can increase the friction force on the surface of the needle holding handle by arranging the anti-slip strip, further can improve the safety during the puncture operation, is convenient to introduce rescue infusion and nutrient solution into the interior of the needle seat by arranging the sealing joint and the extension tube, and can prevent blood from flowing back to enter the extension tube.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;

FIG. 3 is a left side sectional view of a partial structure of the present invention;

FIG. 4 is a schematic cross-sectional view of a cylindrical structure according to the present invention;

FIG. 5 is a schematic left-side view of an impermeable structure according to the present invention;

fig. 6 is a perspective view of the connecting base structure of the present invention.

In the figure: 1. a needle seat; 2. puncturing needle; 3. an infusion port; 4. a conduit; 5. a connecting seat; 6. connecting blocks; 7. a connecting plate; 8. a needle holding handle; 9. an isolation plug; 10. sealing the joint; 11. an extension tube; 12. a cylinder; 13. an anti-seepage mechanism; 131. connecting sleeves; 132. a partition plate; 133. an elastic valve flap; 14. a guide groove; 15. a guide block; 16. a limiting block; 17. a limiting groove; 18. a through hole; 19. a connecting ring; 20. a needle cap; 21. and (4) an anti-slip strip.

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. 1-6, a venous indwelling needle anti-leakage device for nursing comprises aneedle base 1 and apuncture needle 2, thepuncture needle 2 is located in the inner cavity of theneedle base 1, thepuncture needle 2 extends to the right side of theneedle base 1, aninfusion port 3 is fixedly installed at the right end of theneedle base 1, theinfusion port 3 is communicated with the inner cavity of theneedle base 1, aconduit 4 is integrally processed at the right side of theinfusion port 3, thepuncture needle 2 is located in theconduit 4, a connectingseat 5 is arranged at the left side of the inner cavity of theneedle base 1, the connectingseat 5 is slidably connected with the inner wall of theneedle base 1, a connectingblock 6 is arranged in the connectingseat 5, thepuncture needle 2 penetrates into the connectingseat 5 and is mutually installed with the connectingblock 6, a connectingplate 7 is fixedly installed at the left side of the connectingseat 5, aneedle holding handle 8 is arranged at the top of theneedle base 1, the needle holding, the bottom fixed mounting ofneedle file 1 has sealingjoint 10, sealingjoint 10's bottom is provided withextension pipe 11, the right side fixed mounting ofneedle file 1 inner chamber hasdrum 12, the inside ofdrum 12 is provided withseepage prevention mechanism 13, throughtransfusion mouth 3,pipe 4, connectingseat 5, holdneedle handle 8,isolating plug 9, the setting ofextension pipe 11 andseepage prevention mechanism 13, it is better to have the security performance, can prevent the liquid seepage, reduce medical staff's working strength, and can prevent the blood backward flow, and then can promote the advantage of vein indwelling needle practicality, it is relatively poor to have solved the security performance of present nursing with the vein indwelling needle, the space can not in time be closed afterpjncture needle 2 is extracted, lead to the easy condition of seepage that appears of vein indwelling needle, the problem of inconvenience has been brought for medical staff.

In this embodiment, theanti-seepage mechanism 13 includes aconnection sleeve 131, apartition 132 and anelastic flap 133, theconnection sleeve 131 is located at the center of the inner cavity of thecylinder 12, thepuncture needle 2 is located inside theconnection sleeve 131, thepuncture needle 2 is slidably connected with the inner wall of theconnection sleeve 131, thepartition 132 is located between theconnection sleeve 131 and thecylinder 12, thepartitions 132 are respectively located around theconnection sleeve 131, theelastic flap 133 is fixedly mounted at the outer side of theconnection sleeve 131, and theelastic flap 133 is attached to the inner wall of thecylinder 12, through theconnection sleeve 131, thepartition 132 and theelastic flap 133, thecylinder 12 can have a one-way conduction function, leakage during infusion can be prevented, and blood backflow can be prevented from entering the inner cavity of the.

In this embodiment, fixed surface of connectingseat 5installs guide block 15,guide block 15 is located around connectingseat 5 respectively, and laminate betweenguide block 15 and the connectingplate 7,guide way 14 has been seted up to the inner wall ofneedle file 1,guide block 15 be located the inside ofguide way 14 and with the inner wall sliding connection ofguide way 14, setting throughguide block 15 andguide way 14, can play the effect of direction, be convenient for the installation and the extraction of connectingseat 5, prevent that the skew from appearing in the removal orbit of connectingseat 5.

In this embodiment, a plurality ofspacing grooves 17 have been seted up on the surface of isolatingplug 9, andspacing groove 17 is the annular distribution, and the inner wall fixed mounting ofneedle file 1 hasstopper 16,stopper 16 be located the inside ofspacing groove 17 and with the inner wall sliding connection ofspacing groove 17, through the setting ofspacing groove 17 and stopper 16, can fix isolatingplug 9, prevent that isolatingplug 9 from sheltering from sealingjoint 10, can prevent simultaneously that the liquid seepage from flowing outneedle file 1.

In this embodiment, the center of theisolation plug 9 is provided with a throughhole 18, thepuncture needle 2 is located inside the throughhole 18, thepuncture needle 2 is slidably connected with the inner wall of the throughhole 18, thepuncture needle 2 can be limited by the arrangement of the throughhole 18, convenience is provided for the extraction of thepuncture needle 2, and the throughhole 18 is automatically closed to prevent liquid leakage when thepuncture needle 2 is extracted.

In this embodiment, fixed surface ofinfusion mouth 3 installs go-between 19, and the outside cover ofinfusion mouth 3 is equipped withneedle cap 20, and the length ofneedle cap 20 is greater than the length ofpipe 4, andneedle cap 20 passes through the joint between go-between 19 and theinfusion mouth 3, through the setting of go-between 19 andneedle cap 20, can increase the security that the needle was kept somewhere to the vein, avoids the vein to keep somewhere and causes the injury to medical staff.

In this embodiment, both sides all are provided withantislip strip 21 around holdingneedle handle 8, and hold sliding connection between needle handle 8 and theneedle file 1, and the quantity ofantislip strip 21 is a plurality of, andantislip strip 21 is align to grid, through the setting ofantislip strip 21, can increase the frictional force who holds needle handle 8 surface, and then can promote the security when puncture operation.

In this embodiment, sealing joint 10 is located betweendrum 12 and theisolation stopper 9, andextension pipe 11 passes through sealing joint 10 and the inner chamber intercommunication ofneedle file 1, through sealing joint 10 andextension pipe 11's setting, is convenient for let in rescue infusion and nutrient solution to the inside ofneedle file 1, and can prevent that blood from flowing back to get intoextension pipe 11.

The working principle is as follows: when in use, medical staff firstly takes off the needle cap 20, then pricks the puncture needle 2 into the vein of a patient by holding the needle handle 8, then pulls out the puncture needle 2 to make the catheter 4 stay in the vein, because the isolation plug 9 has elasticity, the through hole 18 can be gradually closed, at the moment, the elastic valve flap 133 is attached to the inner wall of the cylinder 12, which can prevent the blood of the patient from flowing into the interior of the needle base 1 through the catheter 4, then the needle base 1 is connected with an external infusion device through the sealing joint 10 and the extension tube 11, the liquid medicine enters the interior of the needle base 1 through the extension tube 11, because the isolation plug 9 is sealed with the needle base 1, the liquid medicine can flow into the cylinder 12, then the elastic valve flap 133 is pushed to be opened by the liquid medicine, the liquid medicine can flow to the right side of the cylinder 12 through the elastic valve flap 133, then the liquid medicine is input into the vein of the patient through the infusion port 3, thereby preventing the blood of the patient from flowing back to infiltrate into the inner cavity of the needle seat 1 and effectively increasing the practicability of the vein indwelling needle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a needle antiseep device is kept somewhere to vein for nursing, includes needle file (1) and pjncture needle (2), its characterized in that: the utility model discloses a needle infusion device, including pjncture needle (2), needle file (1), infusion needle (2) and needle file (1), the right-hand member fixed mounting of needle file (1) has infusion mouth (3), the inner chamber intercommunication of infusion mouth (3) and needle file (1), the right side integrated processing of infusion mouth (3) has pipe (4), and pjncture needle (2) are located the inside of pipe (4), the left side of needle file (1) inner chamber is provided with connecting seat (5), and the inner wall sliding connection of connecting seat (5) and needle file (1), the inside of connecting seat (5) is provided with connecting block (6), pjncture needle (2) run through to the inside of connecting seat (5) and with the mutual installation between connecting block (6), the left side fixed mounting of connecting seat (5) has connecting plate (7), the top of needle file (1) is provided with holds needle handle (8), hold fixed connection between needle handle (8) and connecting plate (7), the inner chamber of needle file (1) and the right side that is located connecting seat (5) are provided with isolation plug (9), the bottom fixed mounting of needle file (1) has sealing joint (10), the bottom of sealing joint (10) is provided with extension pipe (11), the right side fixed mounting of needle file (1) inner chamber has drum (12), the inside of drum (12) is provided with anti-seepage mechanism (13).

2. The venous indwelling needle leakage prevention device for nursing according to claim 1, wherein: seepage-proofing mechanism (13) are including adapter sleeve (131), baffle (132) and elasticity valve clack (133), adapter sleeve (131) are located the center department of drum (12) inner chamber, pjncture needle (2) are located the inside of adapter sleeve (131), and the inner wall sliding connection of pjncture needle (2) and adapter sleeve (131), baffle (132) are located between adapter sleeve (131) and drum (12), and baffle (132) are located adapter sleeve (131) respectively all around, elasticity valve clack (133) fixed mounting is in the outside of adapter sleeve (131), and the inner wall laminating of elasticity valve clack (133) and drum (12).

3. The venous indwelling needle leakage prevention device for nursing according to claim 1, wherein: fixed surface of connecting seat (5) installs guide block (15), guide block (15) are located connecting seat (5) respectively all around, and laminate between guide block (15) and connecting plate (7), guide way (14) have been seted up to the inner wall of needle file (1), guide block (15) be located the inside of guide way (14) and with the inner wall sliding connection of guide way (14).

4. The venous indwelling needle leakage prevention device for nursing according to claim 1, wherein: a plurality of spacing grooves (17) have been seted up on the surface of isolation stopper (9), and spacing groove (17) are the annular and distribute, the inner wall fixed mounting of needle file (1) has stopper (16), stopper (16) be located the inside of spacing groove (17) and with the inner wall sliding connection of spacing groove (17).

5. The venous indwelling needle leakage prevention device for nursing according to claim 1, wherein: a through hole (18) is formed in the center of the isolating plug (9), the puncture needle (2) is located inside the through hole (18), and the puncture needle (2) is connected with the inner wall of the through hole (18) in a sliding mode.

6. The venous indwelling needle leakage prevention device for nursing according to claim 1, wherein: the fixed surface of infusion mouth (3) installs go-between (19), the outside cover of infusion mouth (3) is equipped with needle cap (20), and the length of needle cap (20) is greater than the length of pipe (4), joint between needle cap (20) through go-between (19) and infusion mouth (3).

7. The venous indwelling needle leakage prevention device for nursing according to claim 1, wherein: the needle holding handle is characterized in that anti-slip strips (21) are arranged on the front side and the rear side of the needle holding handle (8), the needle holding handle (8) is connected with the needle base (1) in a sliding mode, the anti-slip strips (21) are arranged in a plurality of numbers, and the anti-slip strips (21) are arranged uniformly.

8. The venous indwelling needle leakage prevention device for nursing according to claim 1, wherein: the sealing joint (10) is positioned between the cylinder (12) and the isolating plug (9), and the extension tube (11) is communicated with the inner cavity of the needle seat (1) through the sealing joint (10).

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