CN215780616U - Needle head cap fixing device convenient for pulling and inserting needle head of syringe - Google Patents

Abstract

A needle head cap fixing device convenient for pulling and inserting a needle head of a syringe comprises a base, a containing hole, a locking structure and an operating structure, wherein the containing hole is provided with a needle cap, the locking structure is provided with the locking structure which can lock or clasp the needle cap in the containing hole, and the operating structure is used for controlling the movement of the locking structure; the opening of the accommodating hole is arranged on the upper surface of the base, and the accommodating hole is arranged vertical to the bottom surface; the aperture of the accommodating hole is larger than the size of the syringe needle cap but smaller than the outer diameter of the syringe barrel; when the syringe needle cap is locked in the accommodating hole, the locking structure enters the accommodating hole; when the syringe needle cap is not locked in the accommodating hole, the locking structure exits the accommodating hole; the operation structure is used for controlling the locking structure to enter or exit the accommodating hole. The syringe is placed in the containing hole before use, the locking structure is operated through the operation structure to enter the containing hole to lock the operation cap, the syringe is pulled out from the needle cap to be injected, the syringe and the needle cap are combined forcefully after injection, and the syringe is simple and convenient to take and is safe to use in the whole process.

Description

Needle head cap fixing device convenient for pulling and inserting needle head of syringe

Technical Field

The utility model belongs to the technical field of medical instruments, particularly relates to the technical field of auxiliary instruments used in injection in the field of design and nursing, and particularly relates to a needle head cap fixing device facilitating the insertion and extraction of a needle head of an injector.

Background

In the clinical nursing process, a nursing staff can often use an injector to inject medicine for a patient, the needle head needs to be taken down from the needle head cap before injection, the needle head needs to be inserted into the needle head cap after injection, and waste is treated after insertion.

One of the current situations in which the operation of the injector is frequently performed is as follows: the injection of insulin needs to be carried out for a plurality of times at regular time and quantity every day in the insulin injection process of a diabetic patient, although a syringe with or without a needle exists in clinic, the price is high, the syringe is not easy to popularize and use in hospitals, a conventional syringe type structure is still generally used for insulin injection in clinic, an injection needle for insulin injection is extremely thin, an operator can easily prick the hand of the operator when pulling out and inserting the needle by two hands, and iatrogenic infection is easily caused; furthermore, before insulin is injected, the injector is usually laid flat in the operating panel, and the operator can take some time to take up the injector because of wearing sterile gloves during operation, and the whole operation process is complicated and time-consuming.

Most of the prior art is an improvement of a syringe, such as a CN 201921828135-a safe insulin needle, in the arrangement of placing a pricked finger; no one thought of the syringe placement structure that can realize the vertical placement of the syringe solves the above technical problems.

The utility model aims at the problems and provides a needle head cap fixing device which is convenient for pulling and inserting a needle head of a syringe.

SUMMERY OF THE UTILITY MODEL

A needle head cap fixing device convenient for pulling and inserting a needle head of a syringe comprises a base, a containing hole, a locking structure and an operating structure, wherein the containing hole is provided with a needle cap, the locking structure is provided with the locking structure which can lock or clasp the needle cap in the containing hole, and the operating structure is used for controlling the movement of the locking structure; the opening of the accommodating hole is arranged on the upper surface of the base, and the accommodating hole is vertical to the bottom surface; the aperture of the accommodating hole is larger than the size of the syringe needle cap but smaller than the outer diameter of the syringe barrel; the accommodating hole is used for accommodating a syringe needle cap; when the syringe needle cap is locked in the accommodating hole, the locking structure enters the accommodating hole; when the syringe needle cap is not locked in the accommodating hole, the locking structure exits the accommodating hole; the operation structure is used for controlling the locking structure to enter or exit the accommodating hole. Before the use, place the accommodation hole with syringe perpendicular ground in advance, it locks the operation cap to enter into the accommodation hole through operation structure operation lock dead structure, back hard extract the syringe from the needle cap and carry out the injection operation, after the injection operation, put into the needle cap with the syringe one hand, hard with syringe and needle cap combination, the back will wholly take out and handle, whole in-process is got and is taken the syringe simple and convenient, and because operation structure is not close to the accommodation hole when pulling out and inserting the syringe, so be difficult to cause the injury to the operator, high safety in utilization.

Furthermore, the base quality is great or set up on the base and fix the base at the sucker structure of placing the dish in, can guarantee like this to die the needle cap of lock in the accommodation hole and the syringe one-hand operation separation.

Furthermore, the locking structure is a threaded rod capable of entering and exiting the accommodating hole, a corresponding threaded hole is formed in the base, and the operating structure is an operating cap for controlling the threaded rod to rotate. When the injector needle cap is used, the injector needle cap extends into the accommodating hole, the injector needle cap is locked in the accommodating hole by the aid of the rotating operation structure, and the injector is pulled out by a single hand.

Or the locking structure is a horizontal toothed bar which can enter and exit the accommodating hole; the operating structure is a rotating gear for controlling the movement of the toothed bar, and teeth on the rotating gear correspond to teeth on the toothed bar; the operation structure also comprises a control structure which is arranged on the outer side surface of the base and used for controlling the rotation of the rotating gear. The control structure can be arranged to a position not close to the accommodating hole by arranging a corresponding gear rotation mode.

Furthermore, the horizontal rack bar is arranged in a setting cavity on the base, and the front end of the horizontal rack bar is a locking plate with the shape consistent with that of the accommodating hole wall. The arrangement of the locking plate is more convenient for locking the needle cap.

Further, the rotating gear includes a large gear portion engaged with the horizontal rack bar; in addition, the rotating gear comprises a small gear part which is not integrally connected with the big gear; an operating gear lever for driving the pinion part to rotate is arranged; the operating toothed bar extends out of the surface of the bottom surface of the base, and a control cap is arranged at the rear end of the operating toothed bar. Through the arrangement, the entering and exiting control of the horizontal rack bar can be realized on the outer surface of the base.

Furthermore, a containing rotating gear is arranged in the setting cavity, the axial direction of the rotating gear is vertical to the axial direction of the horizontal rack bar, and the operating rack bar is vertical to the bottom surface of the base and extends out of the upper surface of the base; the setting cavity also comprises an accommodating cavity for accommodating the operating toothed bar and satisfying the activity of the operating toothed bar.

Further, a return spring is arranged below the operating rack bar;

further, under the non-deformation state of the spring, the horizontal rack bar enters the accommodating hole; manually operating the gear lever to drive the pinion part to rotate so as to drive the bull gear part to rotate, and finally driving the horizontal gear lever to exit to the accommodating hole; placing a syringe needle cap into the receiving hole; after the external force is lost, the horizontal rack rod extends out of the accommodating hole under the action of the restoring elasticity of the spring to clamp the needle cap. The arrangement can ensure that the injector is fixed in the accommodating hole through the needle cap by the operation of nursing staff before use; when in use, the injector is pulled out by one hand.

Further, the operation rack bar is controlled to move downwards to drive the horizontal rack bar to exit from the accommodating hole; this way the force is conveniently applied.

Or, the horizontal rack bar is withdrawn into the accommodating hole when the spring is in a non-deformation state; placing a syringe needle cap into the receiving hole prior to use; the manual operation gear lever drives the small gear part to rotate so as to drive the large gear part to rotate, and finally the horizontal gear lever is driven to extend into the accommodating hole to lock the syringe needle cap; the control cap is still pressed down while the lock is locked; the other hand separates the syringe from the needle cap.

Further, the operation rack bar is controlled to move downwards to drive the horizontal rack bar to enter the accommodating hole; this way the force is conveniently applied.

Further, the setting cavity comprises a first accommodating cavity for horizontally accommodating the horizontal rack bar; a large gear part is arranged in the first accommodating cavity; a second accommodating cavity which is arranged in the first accommodating cavity and is vertical to the first accommodating cavity and is used for accommodating the pinion part; shaft holes for placing the large gear part and the small gear part rotating shaft are formed in the side walls of the first accommodating cavity and the second accommodating cavity; the setting cavity also comprises a third accommodating cavity for accommodating the operating rack bar; the sizes of the first to third accommodating cavities are matched with the sizes of the corresponding arrangement structures.

Furthermore, a cover plate for covering the first accommodating cavity and the second accommodating cavity is arranged on the upper surface of the base, so that the integral structure is more attractive.

Further, the base is a cuboid base, and the length and width of the base range from 40 mm to 100 mm; the height dimension ranges from 50 to 80 mm.

The utility model has the beneficial effects that: the base for placing the needle cap is arranged, the locking structure can be controlled through the operation structure to lock the needle cap on the base, so that the syringe and the needle cap can be conveniently separated, and in addition, the syringe vertically placed on the base is convenient to take and place; the operator can be operated by one hand in the whole process, or the distance between two hands is large in the operation process, so that the injury of the needle head to the operator can be effectively avoided in the operation process.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention with horizontal toothed bars;

FIG. 2 is an enlarged, partially schematic, partially longitudinal cross-sectional view of an operative structure of an embodiment of the present invention with a horizontal rack entering a receiving hole;

FIG. 3 is an enlarged, fragmentary, longitudinal cross-sectional structural illustration of an operative structural portion of an embodiment of the present invention with a horizontal rack bar exiting a receiving hole and without a rotating gear;

FIG. 4 is a schematic structural view of the embodiment with horizontal rack of the present invention showing only the locking structure and the operating structure and the mode of pushing the horizontal rack of the operating rack out of the accommodating hole;

FIG. 5 is a schematic view of the embodiment of the present invention with horizontal rack bar, wherein only the locking structure and the operating structure are locked and the horizontal rack bar is pressed into the receiving hole mode;

FIG. 6 is a schematic bottom view of the overall structure of an embodiment of the present invention with a horizontal rack and a small suction cup;

FIG. 7 is a schematic view of the overall structure of the present invention in which the deadlocking structure is a threaded rod;

FIG. 8 is a schematic longitudinal cross-sectional view of a portion of the base of the present invention with the deadlocking structure being a threaded rod;

FIG. 9 is a schematic view of an insulin pump according to the present invention;

in the figure, 1, a base; 2. an accommodation hole; 31. a threaded rod; 32. an operating cap; 33. a threaded hole; 41. a horizontal rack bar; 42. a rotating gear; 421. a large gear portion; 422. a pinion gear portion; 423. a rotating shaft; 424. a shaft hole; 43. locking the plate; 44. operating a rack bar; 45. a control cap; 46. a return spring; 61. a first accommodating cavity; 62. A second accommodating cavity; 63. a third accommodating cavity; 64. a cover plate; 71. an injector; 72. a needle cap; 8. and (4) sucking discs.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Example 1

A needle head cap fixing device convenient for pulling and inserting a needle head of a syringe comprises a base 1, a containing hole 2, a locking structure and an operating structure, wherein the containing hole 2 is provided with a needle cap 72, the locking structure is arranged and can lock or lock the needle cap 72 in the containing hole 2, and the operating structure is used for controlling the movement of the locking structure; wherein, the opening of the accommodating hole 2 is arranged on the base 1, and the accommodating hole 2 is arranged vertical to the bottom surface; the hole diameter of the accommodating hole 2 is larger than the size of the needle cap 72 of the injector 71 but smaller than the outer diameter of the syringe barrel of the injector 71; the accommodating hole 2 is the accommodating hole 2 for accommodating the needle cap 72 of the syringe 71; when the syringe 71 needle cap 72 is locked in the accommodating hole 2, the locking structure enters the accommodating hole 2; when the needle cap 72 of the syringe 71 is not locked in the accommodating hole 2, the locking structure is withdrawn from the accommodating hole 2; the operating structure is an operating structure that controls the deadlocking structure to enter or exit the receiving hole 2. Before using, place the perpendicular ground of syringe 71 in the accommodation hole 2 in advance, enter into accommodation hole 2 dead lock operation cap 32 through operation structure operation dead lock structure, later hard extract syringe 71 from needle cap 72 and carry out the injection operation, after the injection operation, put into needle cap 72 with syringe 71 one hand, hard with syringe 71 and needle cap 72 combination, later will wholly take out and handle, whole in-process is got syringe 71 simple and convenient, and because operation structure is not close to accommodation hole 2 when pulling out syringe 71, so be difficult to cause the injury to the operator, it is safe in utilization.

As shown in fig. 6, the base 1 has a large mass or the base 1 is provided with a suction cup 8 for fixing the base 1 in the placing tray, so that the needle cap 72 locked in the accommodating hole 2 can be separated from the syringe 71 by one-hand operation.

As shown in fig. 7-8, the locking structure is a threaded rod 31 capable of entering and exiting the receiving hole 2, a corresponding threaded hole 33 is provided on the base 1, and the operation structure is an operation cap 32 for controlling the rotation of the threaded rod 31. When the syringe 71 is used, the needle cap 72 of the syringe 71 is inserted into the accommodating hole 2, the rotating operation structure locks the needle cap 72 of the syringe 71 in the accommodating hole 2, and the syringe 71 is pulled out by one hand.

Example 2

On the basis of example 1, as shown in FIGS. 1-3; different settings are carried out to the dead lock structure, specifically do: the locking structure is a horizontal toothed bar 41 which can enter and exit the accommodating hole 2; the operation structure is a rotating gear 42 for controlling the movement of the toothed bar, and teeth on the rotating gear 42 correspond to teeth on the toothed bar; the operation structure further comprises a control structure arranged on the outer side surface of the base 1 and used for controlling the rotation of the rotating gear 42. The horizontal rack bar 41 is arranged in the arrangement cavity on the base 1, and the front end of the horizontal rack bar 41 is a locking plate 43 which is consistent with the shape of the wall of the accommodating hole 2. The rotating gear 42 includes a large gear portion 421 engaged with the horizontal rack bar 41; in addition, the rotary gear 42 includes a small gear portion 422 which is not integrally connected with the large gear; an operation gear lever 44 for driving the pinion gear portion 422 to rotate is provided; the operating rack 44 is protruded from the surface other than the bottom surface of the base 1, and a control cap 45 is provided at the rear end of the operating rack 44. By the arrangement, the entering and exiting control of the horizontal rack bar 41 can be realized on the outer surface of the base 1.

The arrangement cavity is internally provided with a rotary gear 42, the axial direction of the rotary gear 42 is vertical to the axial direction of the horizontal rack bar 41, and an operation rack bar 44 is vertical to the bottom surface of the base 1 and extends out of the upper surface of the base 1; the setting cavity also comprises an accommodating cavity for accommodating the operating toothed bar 44 and satisfying the movement of the operating toothed bar 44.

The arrangement of the operating rack 44 on one side of the pinion enables it to effect a downward pressing of the operating rack 44 to extend the horizontal rack 41.

The setting cavity comprises a first accommodating cavity 61 for horizontally accommodating the horizontal rack bar 41; a large gear part 421 is arranged in the first accommodating cavity 61; a second accommodating cavity 62 which is arranged in the first accommodating cavity 61 and is vertical to the small gear part 422; the side walls of the first accommodating cavity 61 and the second accommodating cavity 62 are provided with shaft holes 424 for placing the rotating shafts 423 of the large gear part 421 and the small gear part 422; the setting cavity further comprises a third accommodating cavity 63 for accommodating the operating rack bar 44; the sizes of the first accommodating cavity 61 to the third accommodating cavity are matched with the sizes of the corresponding arrangement structures. A covering plate 64 covering the first accommodating cavity 61 and the second accommodating cavity 62 is arranged on the upper surface of the base 1, so that the integral structure is more attractive.

The base 1 is a cuboid base 1, and the length and width of the cuboid base 1 are 40-100 mm; the height dimension ranges from 50 to 80 mm.

Example 3

On the basis of example 2, as shown in fig. 4; a return spring 46 is provided below the operating rack 44; under the non-deformation state of the spring, the horizontal rack bar 41 enters the accommodating hole 2; the manual operation gear lever 44 drives the small gear part 422 to rotate and further drives the large gear part 421 to rotate, and finally drives the horizontal gear lever 41 to exit to the accommodating hole 2; placing the syringe 71 needle cap 72 into the receiving hole 2; after the external force is lost, the horizontal rack bar 41 extends into the accommodating hole 2 under the action of the spring restoring elasticity to clamp the needle cap 72. This arrangement ensures that the syringe 71 is held in the receiving hole 2 by the needle cap 72 by operation of the caregiver before use; when in use, the syringe 71 is pulled out by one hand. The operation rack 44 is controlled to move downwards to drive the horizontal rack 41 to exit the accommodating hole 2; this way the force is conveniently applied.

Example 4

On the basis of embodiment 3, as shown in fig. 5, the control of changing the moving direction of the operating rack 44 to the moving direction of the horizontal rack 41; when the spring is in a non-deformation state, the horizontal rack bar 41 is withdrawn into the accommodating hole 2; placing the syringe 71 needle cap 72 into the receiving hole 2 before use; the manual operation gear lever 44 drives the small gear part 422 to rotate and further drives the large gear part 421 to rotate, and finally drives the horizontal gear lever 41 to extend into the accommodating hole 2 to lock the needle cap 72 of the syringe 71; while locked, the control cap 45 is still pressed; the other hand separates the syringe 71 from the needle cap 72. The operation rack 44 is controlled to move downwards to drive the horizontal rack 41 to enter the accommodating hole 2; this way the force is conveniently applied.

The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the utility model without departing from the principle of the utility model, which would also fall within the scope of the claims of the utility model.

Claims (10)

1. A needle head cap fixing device convenient for pulling and inserting a needle head of a syringe comprises a base, a containing hole, a locking structure and an operating structure, wherein the containing hole is provided with a needle cap, the locking structure is provided with the locking structure which can lock or clasp the needle cap in the containing hole, and the operating structure is used for controlling the movement of the locking structure; the opening of the accommodating hole is arranged on the upper surface of the base, and the accommodating hole is vertical to the bottom surface; the aperture of the accommodating hole is larger than the size of the syringe needle cap but smaller than the outer diameter of the syringe barrel; the accommodating hole is used for accommodating a syringe needle cap; when the syringe needle cap is locked in the accommodating hole, the locking structure enters the accommodating hole; when the syringe needle cap is not locked in the accommodating hole, the locking structure exits the accommodating hole; the operation structure is used for controlling the locking structure to enter or exit the accommodating hole.

2. The needle cover mounting apparatus for facilitating needle insertion and removal of a syringe of claim 1, wherein a suction cup structure is provided on the base for holding the base in the holding plate.

3. The needle head cap fixing device for facilitating needle insertion and removal of a syringe according to claim 1, wherein the locking structure is a threaded rod capable of entering and exiting the receiving hole, the base is provided with a corresponding threaded hole, and the operation structure is an operation cap for controlling the rotation of the threaded rod.

4. The needle cap retainer for facilitating needle insertion and removal of a syringe of claim 1, wherein the dead structure is a horizontal rack capable of entering and exiting the receiving hole; the operating structure is a rotating gear for controlling the movement of the toothed bar, and teeth on the rotating gear correspond to teeth on the toothed bar; the operation structure also comprises a control structure which is arranged on the outer side surface of the base and used for controlling the rotation of the rotating gear.

5. The needle cap retainer for facilitating needle insertion and removal of a syringe according to claim 4, wherein the horizontal rack is disposed in a cavity provided in the base, and a front end of the horizontal rack is a locking plate having a shape corresponding to a wall of the accommodating hole.

6. The needle cap fixing device for facilitating needle pulling and inserting of a syringe according to claim 5, wherein the rotation gear comprises a large gear portion engaged with the horizontal rack; in addition, the rotating gear comprises a small gear part which is not integrally connected with the big gear; an operating gear lever for driving the pinion part to rotate is arranged; the operating toothed bar extends out of the surface of the bottom surface of the base, and a control cap is arranged at the rear end of the operating toothed bar.

7. The needle cap retainer for facilitating needle insertion and removal of a syringe according to claim 4, wherein a rotary gear is accommodated in the chamber, the axial direction of the rotary gear is perpendicular to the axial direction of the horizontal rack, and the operating rack is perpendicular to the bottom surface of the base and extends from the upper surface of the base; the setting cavity also comprises an accommodating cavity for accommodating the operating toothed bar and satisfying the activity of the operating toothed bar.

8. The needle cap retainer for facilitating needle insertion and removal of a syringe of claim 7, wherein a return spring is disposed below the operating rack.

9. The needle cover holding device for facilitating needle insertion and removal of a syringe according to claim 5, wherein the setting chamber comprises a first horizontal accommodating chamber for accommodating the horizontal rack; a large gear part is arranged in the first accommodating cavity; a second accommodating cavity which is arranged in the first accommodating cavity and is vertical to the first accommodating cavity and is used for accommodating the pinion part; shaft holes for placing the large gear part and the small gear part rotating shaft are formed in the side walls of the first accommodating cavity and the second accommodating cavity; the setting cavity also comprises a third accommodating cavity for accommodating the operating rack bar; the sizes of the first to third accommodating cavities are matched with the sizes of the corresponding arrangement structures.

10. The needle head cap fixing device for facilitating needle insertion and removal of a syringe according to any one of claims 1 to 9, wherein the base is a rectangular base, and the length and width of the base are in the range of 40 to 100 mm; the height dimension ranges from 50 to 80 mm.

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