CN214911839U

CN214911839U - Syringe structure capable of preventing blood from overflowing

Info

Publication number: CN214911839U
Application number: CN202120183840.1U
Authority: CN
Inventors: 赵敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-11-30
Anticipated expiration: 2031-01-23

Abstract

The utility model discloses an injector structure capable of preventing blood from overflowing, which comprises an injector body and an overflow preventing mechanism, wherein an injector push rod is arranged inside the injector body, a guide wire guide cavity is arranged inside the injector push rod, the overflow preventing mechanism consists of sterilized cotton, a fixed block, a guide block, a sealing block, an installation block and a plastic spring, and the sterilized cotton is arranged inside the guide wire guide cavity on the injector push rod; the utility model discloses simple structure, reasonable in design can prevent blood excessive effectively after dark venipuncture and insert the seal wire, it is better to seal the effect, prevent that the bacterium in the air from entering into blood when inserting the seal wire, medical personnel fix the syringe at the mode of the in-process of inserting the seal wire of taking the mode of holding a pen or holding a fist simultaneously, prevent that long-time operation from leading to thumb and forefinger fatigue shake even cramp make the syringe needle deviate from outside the blood vessel, reduce medical personnel's the operation degree of difficulty and proficiency requirement.

Description

Syringe structure capable of preventing blood from overflowing

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an injector structure capable of preventing blood from overflowing.

Background

The deep vein catheterization is an indispensable means for intensive care wards, major operations and treatment of critically ill patients, the deep vein catheterization refers to the process of puncturing the body surface to a corresponding vein and placing a deep vein catheter, and the basic steps of the existing deep vein catheterization are as follows: preparing a tube placing device, placing the body position of a patient, and selecting a puncture point; establishing a disinfection area, carrying out local disinfection according to a sterile operation program, and paving an operation towel; checking whether the deep venous catheter is intact, puncturing the vein by using a puncture needle arranged in a disposable central venous catheter package in the deep venous puncture, observing blood return, and fixing the position of a needle head and a retaining needle after confirming that all needle holes enter the blood vessel; after venous return, the needle head is slightly pushed to prevent the needle tip from falling out of the blood vessel during breathing or activity; the left hand fixes the puncture needle, and the right hand holds the guide wire pushing frame to insert the guide wire; fixing the guide wire and withdrawing the puncture needle; estimating the puncture depth, placing a skin expanding needle (skin expanding needle: a medical device for expanding a puncture channel so as to facilitate the deep venous catheter to smoothly enter the deep vein) along the guide wire, and withdrawing after expanding the puncture channel; placing a deep venous catheter along the guide wire, and withdrawing the guide wire; flushing the catheter with low molecular heparin solution; connecting the infusion system and the catheter, fixing by a special fixer, and protecting the puncture point by a sterile adhesive film.

The defects of the prior art are as follows:

1. after the injector is inserted into the deep vein, because the pressure of the blood is greater than the external air pressure, and the needle stem and the middle parallel line are at an angle of 30 to 45 degrees with the skin, the blood is easy to seep out of the guide wire introducing part;

2. meanwhile, when the guide wire is inserted, medical workers need to fix the puncture needle by the left hand, the guide wire is placed in the guide wire by the right hand-held guide wire pushing frame, the medical workers usually pinch the connecting position of the needle tube and the needle head by the thumb and the forefinger, and the long-time fingers are easy to fatigue and even cramp, so that the needle head is easily separated from the deep vein.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an excessive syringe structure of blood is prevented to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an injector structure capable of preventing blood from overflowing comprises an injector body and an overflow preventing mechanism, wherein an injector push rod is arranged in the injector body, the inner part of the injector push rod is provided with a guide wire guide cavity, the anti-overflow mechanism consists of sterilized cotton, a fixed block, a guide block, a sealing block, a mounting block and a plastic spring, the inner part of the guide wire guide cavity is provided with a sterilized cotton on the injector push rod, the upper end of the guide wire guide cavity is provided with a fixed block on the inner side wall of the injector push rod, a guide block is arranged on one side of the inner side wall of the injector push rod, which is far away from the fixed block, a sealing block is connected on the side surface of the guide block, which is close to one side of the fixed block, in a sliding way through a sliding chute, the lower extreme of guide block is provided with the installation piece, be provided with the plastics spring on the up end of installation piece, the upper end setting of plastics spring is on the lower terminal surface of sealed piece.

Preferably, an auxiliary mechanism is arranged on the outer surface of the lower end of the injector body and consists of a plurality of plastic blocks and insertion holes, the plastic blocks are arranged on two sides of the outer surface of the lower end of the injector body, and the insertion holes are formed in the plastic blocks.

Preferably, the lower end of the outer surface of the injector body is provided with a blood colorimetric card.

Preferably, a sterile film is arranged at the cavity opening at the upper end of the guide wire guide cavity on the upper end surface of the injector push rod.

Preferably, the lower end of the interior of the syringe push rod is conical, and a plurality of conical guide covers are arranged on the inner side wall of the syringe push rod.

Preferably, a silica gel sheet is arranged on the lower end face of the sealing block, and a groove matched with the silica gel sheet is formed in the fixing block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this syringe structure with prevent blood excessive through being provided with prevents excessive mechanism, prevents that excessive mechanism comprises aseptic cotton, fixed block, guide block, sealed piece, installation piece and plastic spring, can prevent effectively that blood is excessive after dark venipuncture and insert the seal wire, and sealed effect is better, prevents that the bacterium in the air from entering into blood when inserting the seal wire.

2. This syringe structure with prevent blood excessive, through being provided with complementary unit, complementary unit comprises a plurality of plastic piece and jack, and medical personnel takes the mode of holding a pen or the mode of holding a fist at the in-process that inserts the seal wire to fix the syringe, prevents that long-time operation from leading to the tired shake of thumb and forefinger to cramp even and make the syringe needle deviate from the blood vessel outside, reduces medical personnel's the operation degree of difficulty and proficiency requirement.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the syringe plunger of the present invention;

FIG. 3 is a schematic view of the connection between the guide block and the sealing block of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. an injector body; 101. a blood colorimetric card; 2. an anti-overflow mechanism; 21. sterilizing cotton; 22. A fixed block; 23. a guide block; 24. a sealing block; 241. a silica gel sheet; 25. mounting blocks; 26. a plastic spring; 3. an injector push rod; 31. a guide wire guide lumen; 32. sterile film pasting; 4. an auxiliary mechanism; 41. A plastic block; 42. a jack; 5. a conical guide housing.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution: an injector structure capable of preventing blood from overflowing comprises an injector body 1 and an overflow-preventing mechanism 2, wherein an injector push rod 3 is arranged inside the injector body 1, a guide wire guide cavity 31 is formed inside the injector push rod 3, the overflow-preventing mechanism 2 comprises sterilized cotton 21, a fixed block 22, a guide block 23, a sealing block 24, an installation block 25 and a plastic spring 26, the sterilized cotton 21 is arranged inside the guide wire guide cavity 31 on the injector push rod 3, the fixed block 22 is arranged at the upper end of the guide wire guide cavity 31 on the inner side wall of the injector push rod 3, the guide block 23 is arranged on one side, far away from the fixed block 22, of the inner side wall of the injector push rod 3, the sealing block 24 is connected to the side, close to one side of the fixed block 22, of the guide block 23 in a sliding mode through a sliding groove, the installation block 25 is arranged at the lower end of the guide block 23, and the plastic spring 26 is arranged on the upper end face of the installation block 25, the upper end of the plastic spring 26 is arranged on the lower end surface of the sealing block 24;

through the scheme, the anti-overflow mechanism 2 is arranged, the anti-overflow mechanism 2 consists of the sterilized cotton 21, the fixing block 22, the guide block 23, the sealing block 24, the mounting block 25 and the plastic spring 26, blood can be effectively prevented from overflowing after deep venipuncture and guide wire insertion, the sealing effect is better, and bacteria in air are prevented from entering blood when the guide wire is inserted.

In the embodiment, preferably, the auxiliary mechanism 4 is installed on the outer surface of the lower end of the injector body 1, the auxiliary mechanism 4 is composed of a plurality of plastic blocks 41 and insertion holes 42, the plastic blocks 41 are connected to both sides of the outer surface of the lower end of the injector body 1 in a hot melting manner, and the insertion holes 42 are formed in the plastic blocks 41;

through above-mentioned scheme, through being provided with complementary unit 4, complementary unit 4 comprises a plurality of plastic block 41 and jack 42, and medical personnel take the mode of holding a pen or the mode of holding a fist at the in-process that inserts the seal wire to fix the syringe, prevents that long-time operation from leading to thumb and forefinger fatigue shake even cramp to make the syringe needle deviate from the blood vessel outside, reduces medical personnel's the operation degree of difficulty and the proficiency requirement.

In this embodiment, preferably, the lower end of the outer surface of the injector body 1 is printed with a blood color comparison card 101;

through above-mentioned scheme, through being provided with blood colour comparison card 101, make things convenient for medical personnel to the blood return of piercing vein and observe the comparison.

In this embodiment, preferably, a sterile adhesive film 32 is adhered to the upper end surface of the syringe push rod 3 at the cavity opening at the upper end of the guide wire guide cavity 31;

through the scheme, the aseptic sticking film 32 is arranged, so that the sterilized cotton 21 can be prevented from being polluted, and the service life of the sterilized cotton 21 is prolonged.

In this embodiment, preferably, the lower end of the interior of the syringe push rod 3 is formed into a cone shape, and a plurality of cone-shaped guide covers 5 are installed on the inner side wall of the syringe push rod 3;

through the scheme, the guide wire can be conveniently guided to pass through the guide wire guide cavity 31 by arranging the conical guide cover 5.

In this embodiment, preferably, a silicon sheet 241 is installed on the lower end face of the sealing block 24, and a groove matched with the silicon sheet 241 is formed on the fixing block 22;

through the above scheme, the sealing effect between the fixing block 22 and the sealing block 24 can be increased by arranging the silica gel sheet 241.

The working principle of the utility model is as follows:

the syringe structure with prevent excessive syringe structure of blood of this embodiment is when using, through the bacterium of aseptic cotton 21 isolation outside air, and through fixed block 22, guide block 23, sealed block 24, installation piece 25 and the sealed of plastic spring 26, can prevent blood excessive effectively after deep vein puncture and insert the seal wire, sealed effect is better, prevent that the bacterium in the air from entering into blood when inserting the seal wire, medical personnel is inserting the in-process of seal wire simultaneously, can adopt thumb and forefinger to insert the mode of holding a pen in jack 42 or insert the mode of holding a fist in jack 42 with the forefinger and fix the syringe, through wrist department power, prevent that long-time operation from leading to thumb and forefinger fatigue shake even cramp and make the syringe needle deviate from the blood vessel outside, reduce medical personnel's the operation degree of difficulty and the proficiency requirement.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A syringe structure with blood overflow prevention function comprises a syringe body (1) and an overflow prevention mechanism (2), and is characterized in that: the anti-overflow syringe is characterized in that a syringe push rod (3) is arranged inside the syringe body (1), a guide wire guide cavity (31) is arranged inside the syringe push rod (3), the anti-overflow mechanism (2) is composed of a sterilized cotton (21), a fixed block (22), a guide block (23), a sealing block (24), an installation block (25) and a plastic spring (26), the sterilized cotton (21) is arranged inside the guide wire guide cavity (31) on the syringe push rod (3), the fixed block (22) is arranged at the upper end of the guide wire guide cavity (31) on the inner side wall of the syringe push rod (3), the guide block (23) is arranged on one side, far away from the fixed block (22), of the inner side wall of the syringe push rod (3), the sealing block (24) is connected to the side face, close to the fixed block (22), of the guide block (23) in a sliding mode through a sliding groove, the installation block (25) is arranged at the lower end of the guide block (23), and a plastic spring (26) is arranged on the upper end face of the mounting block (25), and the upper end of the plastic spring (26) is arranged on the lower end face of the sealing block (24).

2. The syringe structure with blood-spill prevention according to claim 1, characterized in that: the injector is characterized in that an auxiliary mechanism (4) is arranged on the outer surface of the lower end of the injector body (1), the auxiliary mechanism (4) is composed of a plurality of plastic blocks (41) and insertion holes (42), the plastic blocks (41) are arranged on two sides of the outer surface of the lower end of the injector body (1), and the insertion holes (42) are formed in the plastic blocks (41).

3. The syringe structure with blood-spill prevention according to claim 1, characterized in that: the lower end of the outer surface of the injector body (1) is provided with a blood colorimetric card (101).

4. The syringe structure with blood-spill prevention according to claim 1, characterized in that: and a sterile film (32) is arranged at the cavity opening at the upper end of the guide wire guide cavity (31) on the upper end surface of the injector push rod (3).

5. The syringe structure with blood-spill prevention according to claim 1, characterized in that: the lower end of the interior of the injector push rod (3) is conical, and a plurality of conical guide covers (5) are arranged on the inner side wall of the injector push rod (3).

6. The syringe structure with blood-spill prevention according to claim 1, characterized in that: the lower end face of the sealing block (24) is provided with a silica gel sheet (241), and the fixing block (22) is provided with a groove matched with the silica gel sheet (241).