CN213374396U

CN213374396U - Safety remaining needle

Info

Publication number: CN213374396U
Application number: CN202021730686.7U
Authority: CN
Inventors: 郭琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-06-08
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a needle is kept somewhere to safety relates to medical apparatus technical field, including steel needle seat shell, the outside slip cover of steel needle seat shell has the recovery tube, the thread groove has all been seted up in the outside that the recovery tube is close to steel needle seat body, there is the screw thread post thread inslot portion through threaded connection, the beneficial effects of the utility model are that: this safety indwelling needle, through being provided with the recovery spring, remove strip and sliding block, it promotes the sliding block to remove to the direction of keeping away from the steel needle seat shell along removing the strip inner chamber to retrieve the inside that makes steel needle seat body drive steel needle body remove to the recovery tube, prevent that medical personnel from being stabbed by the steel needle body when the accident takes place, cause medical personnel to receive the condition emergence of infecting, through being provided with fixed slot and fixed column, make when need not take off this indwelling needle, the steel needle body can not remove to inside the recovery tube, this indwelling needle's practicality has been ensured.

Description

Safety remaining needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a safe indwelling needle.

Background

The indwelling needle is generally used for clinically infusing liquid medicine to a patient, and has the advantages of reducing the times of blood vessel puncture, reducing liquid seepage, being capable of quickly infusing liquid medicine, being beneficial to relieving the pain of the patient, being convenient for rescue and the like. The indwelling needle is widely applied clinically at present, the form that the steel needle is sleeved with the soft catheter is adopted, after the soft catheter and the steel needle puncture the blood vessel of the human body at the same time, the steel needle is drawn out and the soft catheter is indwelling in the blood vessel of the human body, the indwelling needle can be indwelling in the blood vessel for a plurality of days, the pain and the fear of the patient to the needle due to repeated venipuncture are reduced, the anxiety of the patient is relieved, the clinical medication and the infusion of the emergency medication of critical and critical patients are facilitated, and the workload of nurses is relieved. However, the existing indwelling needle has the defects that after venipuncture, the needle tube is pulled out, and the used sharp needle tube is exposed outside, so that medical personnel or other people are easily stabbed and infected when the indwelling needle tube is cleaned and destroyed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a needle is kept somewhere to not enough to prior art, the problem of proposing in the above-mentioned background art has been solved to the safety.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a safe indwelling needle comprises a steel needle seat shell, wherein a recovery tube is sleeved on the outer side of the steel needle seat shell in a sliding mode, thread grooves are formed in the outer side, close to a steel needle seat body, of the recovery tube, a thread column is connected to the inner portion of each thread groove in a threaded mode, an unlocking groove is formed in the recovery tube and located below the thread grooves, a fixing column is connected to the inner cavity of the unlocking groove in a sliding mode, the bottom end of the thread column extends to the inner portion of the unlocking groove and contacts with one side of the fixing column, an unlocking spring is connected to the inner cavity of the unlocking groove and located on the outer side of the thread column in a sliding mode, a steel needle seat body is connected to the inner portion of the steel needle seat shell in a sliding mode, the recovery tube is fixedly connected to one end of the steel needle seat body, one end of the steel needle seat body extends to the interior of the, one side of the connecting block and one end of the steel needle holder body, which is located inside the recovery tube, are fixedly connected, a fixing groove is formed in one side of the connecting block, which is close to the fixing column, one end of the fixing column, which is close to the connecting groove, extends into the fixing groove, a catheter holder is fixedly connected to one side of the steel needle holder shell, which is far away from the recovery tube, a steel needle body is arranged inside the steel needle holder body, a soft sheath is arranged at one end of the catheter holder, and one end of the steel needle body penetrates through the catheter holder and extends into the soft sheath.

Preferably, the top and the equal fixedly connected with in bottom of recovery tube inner chamber remove the strip, the equal fixedly connected with in one side of removing the strip inner chamber retrieves the spring, retrieve the equal fixedly connected with sliding block of one end of spring, steel needle file body is located the inside both sides of recovery tube all with one side fixed connection of sliding block.

Preferably, the outside of recovery tube and the one side fixedly connected with lug that is located the thread groove, the equal fixedly connected with supporting spring in one side of lug inner chamber, the equal fixedly connected with rubber block of one end of supporting spring, one side that supporting spring was kept away from to the rubber block all passes the recovery tube and contacts with the outside of steel needle seat shell.

Preferably, the outer sides of the supporting spring and the rubber block are both in sliding connection with the inner cavity of the lug.

Preferably, the outer sides of the recovery spring and the sliding block are both in sliding connection with the inner cavity of the moving strip.

Preferably, the shape and size of one end, far away from the threaded column, of the fixing column are matched with those of the fixing groove.

The utility model provides a needle is kept somewhere to safety possesses following beneficial effect:

1. the safety indwelling needle is provided with the recovery spring, the moving strip and the sliding block, the recovery spring pushes the sliding block to move along the inner cavity of the moving strip towards the direction far away from the shell of the steel needle seat, so that the steel needle seat body drives the steel needle body to move into the recovery tube, medical staff is prevented from being punctured by the steel needle body when an accident happens, and the medical staff is prevented from being infected, through the arrangement of the fixed groove and the fixed column, when the indwelling needle does not need to be taken down, the steel needle body cannot move into the recovery tube, the practicability of the indwelling needle is ensured, meanwhile, when the indwelling needle needs to be taken out, an operator twists the threaded column, so that one end of the threaded column positioned in the unlocking groove is not contacted with one side of the fixed column, one end of the fixed column moves into the unlocking groove, and the steel needle body is taken into the recovery tube, prevent medical personnel from being accidentally stabbed by the steel needle body.

2. This safety indwelling needle through being provided with supporting spring and rubber block, takes off from the steel needle seat shell when the recovery tube, and supporting spring promotes the rubber block and removes to lug outside direction this moment, with the closure of recovery tube, prevents that medical personnel from contacting the blood in the steel needle body outside, and the condition that receives the infection takes place to medical personnel's safety has been protected, makes the recovery tube comparatively safe when handling simultaneously.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the point B of FIG. 1 according to the present invention;

fig. 4 is an enlarged view of fig. 1 at C.

In the figure: 1. a steel needle base housing; 2. a steel needle base body; 3. a catheter hub; 4. a steel needle body; 5. a soft sheath; 6. a recovery pipe; 7. unlocking the groove; 8. a threaded post; 9. a thread groove; 10. fixing a column; 11. an unlocking spring; 12. connecting grooves; 13. connecting blocks; 14. fixing grooves; 15. a moving bar; 16. a slider; 17. recovering the spring; 18. a bump; 19. a support spring; 20. a rubber block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a safe indwelling needle comprises a steel needle holder shell 1, a recovery tube 6 is sleeved on the outer side of the steel needle holder shell 1 in a sliding mode, thread grooves 9 are formed in the outer sides, close to a steel needle holder body 2, of the recovery tube 6, thread columns 8 are connected to the inner portions of the thread grooves 9 through threads, unlocking grooves 7 are formed in the inner portions of the recovery tube 6 and located below the thread grooves 9, fixing columns 10 are connected to the inner cavities of the unlocking grooves 7 in a sliding mode, the bottom ends of the thread columns 8 extend into the unlocking grooves 7 and are in contact with one sides of the fixing columns 10, unlocking springs 11 are connected to the inner cavities of the unlocking grooves 7 and located on the outer sides of the thread columns 8 in a sliding mode, the steel needle holder body 2 is connected to the inner portions of the steel needle holder shell 1 in a sliding mode, the recovery tube 6 is fixedly connected to one end of the steel needle holder shell 1, one end of the steel needle holder body 2 extends into the recovery tube 6, connecting blocks 13, one side and the steel needle holder body 2 of connecting block 13 are located the inside one end fixed connection of recovery tube 6, fixed slot 14 has been seted up to one side that connecting block 13 is close to fixed column 10, fixed column 10 is close to the one end of spread groove 12 and extends to inside 14 fixed slots, one side fixedly connected with pipe seat 3 of recovery tube 6 is kept away from to steel needle holder shell 1, 2 inside steel needle bodies 4 that are provided with of steel needle holder body, the one end of pipe seat 3 is provided with soft sheath 5, the one end of steel needle body 4 is passed pipe seat 3 and is extended to inside 5 soft sheaths.

The top and the bottom of the inner cavity of the recovery tube 6 are fixedly connected with a movable strip 15, one side of the inner cavity of the movable strip 15 is fixedly connected with a recovery spring 17, one end of the recovery spring 17 is fixedly connected with a sliding block 16, two sides of the steel needle seat body 2 positioned in the recovery tube 6 are fixedly connected with one side of the sliding block 16, the recovery spring 17 pushes the sliding block 16 to move along the inner cavity of the movable strip 15 towards the direction far away from the steel needle seat shell 1, so that the sliding block 16 drives one end of the steel needle seat body 2 to slide towards the interior of the recovery tube 6, the steel needle seat body 2 drives the steel needle body 4 to move to the interior of the recovery tube 6, thereby preventing medical personnel from being stabbed by the steel needle body 4, one side of the outer side of the recovery tube 6 and positioned in the thread groove 9 is fixedly connected with a convex block 18, one side of the inner cavity of the convex block 18, one side that supporting spring 19 was kept away from to rubber block 20 all passes recovery tube 6 and contacts with the outside of steel needle seat shell 1, supporting spring 19 promotes rubber block 20 and removes to lug 18 outside direction, with the closure of recovery tube 6, prevent that medical personnel from contacting the blood in the steel needle body 4 outside, the condition that receives the infection takes place, supporting spring 19 all with lug 18 inner chamber sliding connection with the outside of rubber block 20, make supporting spring 19 promote the gliding more steady of rubber block 20, the outside of recovery spring 17 and sliding block 16 all with the inner chamber sliding connection who removes strip 15, thereby it is more steady to make recovery spring 17 promote sliding block 16 to slide along removing strip 15 inner chamber, the shape size that fixed column 10 kept away from 8 one end of screw thread post all matches with the shape size of fixed slot 14, make the one end of fixed column 10 and the more firm of fixed slot 14 joint.

In conclusion, when the safety indwelling needle is used, after the clinical puncture is finished, an operator twists the threaded column 8 to enable one end of the threaded column 8 positioned in the unlocking groove 7 not to contact one side of the fixed column 10, the unlocking spring 11 pulls the fixed column 10 to move upwards to enable one end of the fixed column 10 to move to the inside of the unlocking groove 7, the fixed column 10 is disengaged from the fixed groove 14, the recovery spring 17 pushes the sliding block 16 to move along the inner cavity of the moving strip 15 in the direction away from the steel needle holder shell 1, the sliding block 16 drives one end of the steel needle holder body 2 to slide towards the inside of the recovery tube 6, the steel needle holder body 2 drives the steel needle body 4 to move to the inside of the recovery tube 6, the recovery tube 6 is taken down from the steel needle holder shell 1, the supporting spring 19 pushes the rubber block 20 to move towards the outer side of the convex block 18 to seal the recovery tube 6, and prevent a medical worker from contacting blood outside the steel needle body 4, an infected condition occurs.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a safe indwelling needle, includes steel needle seat shell (1), its characterized in that: a recovery tube (6) is slidably sleeved on the outer side of the steel needle base shell (1), thread grooves (9) are formed in the outer side, close to the steel needle base body (2), of the recovery tube (6), threaded columns (8) are connected to the inner portions of the thread grooves (9) through threads, unlocking grooves (7) are formed in the inner portions of the recovery tube (6) and located below the thread grooves (9), fixing columns (10) are slidably connected to inner cavities of the unlocking grooves (7), the bottom ends of the threaded columns (8) extend to the inner portions of the unlocking grooves (7) and are in contact with one sides of the fixing columns (10), unlocking springs (11) are slidably connected to inner cavities of the unlocking grooves (7) and located on the outer sides of the threaded columns (8), the steel needle base body (2) is slidably connected to the inner portions of the steel needle base shell (1), the recovery tube (6) is fixedly connected to one end of the steel needle base shell (1, one end of the steel needle seat body (2) extends into the recovery tube (6), one side of the steel needle seat shell (1) close to the recovery tube (6) is provided with a connecting block (13), a connecting block (13) is arranged in the connecting block (13), one side of the connecting block (13) is fixedly connected with one end of the steel needle seat body (2) positioned in the recovery tube (6), one side of the connecting block (13) close to the fixing column (10) is provided with a fixing groove (14), one end of the fixed column (10) close to the connecting groove (12) extends to the inside of the fixed groove (14), a catheter seat (3) is fixedly connected with one side of the steel needle seat shell (1) far away from the recovery tube (6), a steel needle body (4) is arranged in the steel needle seat body (2), a soft sheath (5) is arranged at one end of the catheter seat (3), one end of the steel needle body (4) penetrates through the catheter seat (3) and extends into the soft sheath (5).

2. The safety indwelling needle according to claim 1, wherein: the top and the equal fixedly connected with in bottom of recovery tube (6) inner chamber remove strip (15), the equal fixedly connected with in one side of removing strip (15) inner chamber retrieves spring (17), the equal fixedly connected with sliding block (16) of one end of retrieving spring (17), steel needle file body (2) are located the both sides of recovery tube (6) inside all with one side fixed connection of sliding block (16).

3. The safety indwelling needle according to claim 1, wherein: the outside of recovery tube (6) and be located one side fixedly connected with lug (18) of thread groove (9), the equal fixedly connected with supporting spring (19) in one side of lug (18) inner chamber, the equal fixedly connected with rubber block (20) of one end of supporting spring (19), one side that supporting spring (19) were kept away from in rubber block (20) all passes recovery tube (6) and contacts with the outside of steel needle seat shell (1).

4. A safety indwelling needle according to claim 3, wherein: the outer sides of the supporting spring (19) and the rubber block (20) are both connected with the inner cavity of the convex block (18) in a sliding manner.

5. The safety indwelling needle according to claim 2, wherein: the outer sides of the recovery spring (17) and the sliding block (16) are both in sliding connection with the inner cavity of the moving strip (15).

6. The safety indwelling needle according to claim 1, wherein: the shape and size of one end, far away from the threaded column (8), of the fixing column (10) are matched with those of the fixing groove (14).