CN103212140B - A kind of safety transfusion needle - Google Patents

Abstract

The invention discloses a safety infusion needle, which comprises an infusion tube and a puncture needle. An infusion needle wing is arranged at the joint between the puncture needle and the infusion tube, and a safety kit is sheathed on the infusion tube. Tube and cannula handle, one side of the cannula is provided with a chute matching with the infusion needle wings; one or more stop protrusions are arranged on the chute; the cannula handle is provided with limited The position groove, the limit groove communicates with the chute, and the length from the sleeve handle to the closest limit protrusion is less than the height of the infusion needle fin. The beneficial effects of the present invention are as follows: 1. The structure is simple and the structure is exquisite, and the limiting groove is cleverly opened at the handle of the hard material, and the fins of the infusion needle are limited in the limiting groove by the limitation of the limiting protrusion ;Safe and reliable. 2. After the contaminated needle is sealed, it blocks its direct contact with the outside world, cuts off the possibility of needle stick injury, and prevents the occupational injury of the nursing staff.

Description

A safety infusion needle

technical field

The purpose of the present invention is to provide an infusion needle, specifically a safety infusion needle, which belongs to the technical field of medical devices.

Background technique

In clinical work, the occurrence of injection-related needlestick injuries is random and uncontrollable, and nursing staff is a high-risk group for needlestick injuries. The harms of unsafe injections to society include needle sticks after use and improper disposal of injection equipment after use, leading to the spread of infection in society. Standard prevention was proposed by the Centers for Disease Control and Prevention in the United States in 1995 and implemented in the United States in 1996. It was introduced in my country in 1999 and incorporated into the "Nosocomial Infection Management Standards (Trial)" issued by the Ministry of Health in 2000. The standard precautionary point of view is that: all patients' blood, body fluids, excreta, and secretions are infectious, and they need to be isolated regardless of whether there is obvious blood contamination or contact with incomplete skin and mucous membranes. Therefore, the extensive use of disposable infusion needles will inevitably bring about the problem of safe disposal of disposable infusion needles.

Currently commonly used safety infusion needles include infusion tubes and puncture needles. Infusion needle fins are provided at the joint between the puncture needle and the infusion tube, and a safety kit is set on the infusion tube. The safety kit consists of a sleeve that can accommodate the puncture needle and The cannula handle is composed of one side of the cannula, which is provided with a chute matched with the fin of the infusion needle, and the chute extends from the end of the cannula to the handle. After the infusion of this safety infusion needle is completed, one hand holds the handle, and the other hand holds the infusion needle fins to make relative movements, and then the infusion needle fins slide into the chute. The chute is provided with a limiting protrusion, so that the puncture needle remains in the casing, which plays a role of safety protection.

However, since the chute must allow the vanes of the infusion needle to slide in smoothly, the sleeve must be made of elastic material. However, because of this, the infusion needle fins can shake in the casing and the chute becomes loose under the action of external force, and then the infusion needle fins break away from the limit protrusion, and the infusion needle fins come out of the chute, which is not safe. ideal.

Contents of the invention

The object of the present invention is to provide a safety infusion needle to solve the above-mentioned problems in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A safety infusion needle, comprising an infusion tube and a puncture needle, an infusion needle fin is arranged at the connection between the puncture needle and the infusion tube, and a safety kit is set on the infusion tube, the safety kit consists of a sleeve that can accommodate the puncture needle and a hard The cannula handle is composed of a chute matching the infusion needle fin on the side wall of the cannula; one or more stop protrusions are set on the chute; limit stops are set on the cannula handle. The groove, the limit groove communicates with the chute, and the length from the sleeve handle to the nearest limit protrusion is less than the height of the infusion needle fin.

In order to facilitate pushing the fins of the infusion needle into the limiting groove, the end of the sleeve is designed as a bevel, and the lowest point of the bevel is the inlet of the chute.

There are three limiting protrusions.

A preferred embodiment is that the height of the limiting groove is equal to the height of the fins of the infusion needle, and the limiting protrusion closest to the cannula handle is at the junction of the cannula and the cannula handle.

The chutes are not on the same straight line, and more preferably, one section of the chutes is arc-shaped. It not only prevents the puncture needle from warping out of the chute due to lateral force, but also enables the wing of the infusion needle to slide smoothly into the limiting groove.

Since the sleeve handle is made of hard material, the limit groove will not be loosened by external force, and the infusion needle wings will not slip out of the limit protrusion, which is safer and more reliable.

The beneficial effects of the present invention are as follows: 1. The structure is simple and the structure is exquisite, and the limiting groove is cleverly opened at the handle of the hard material, and the fins of the infusion needle are limited in the limiting groove by the limitation of the limiting protrusion ;Safe and reliable. 2. After the contaminated needle is sealed, it blocks its direct contact with the outside world, cuts off the possibility of needle stick injury, prevents occupational injury of nursing staff, and relieves the psychological pressure of occupational exposure of the majority of nursing workers.

Description of drawings

Fig. 1 is the structural representation of puncture needle of the present invention;

Fig. 2 is a structural schematic diagram of the practical safety kit;

Fig. 3 is an enlarged view of part A of Fig. 2;

FIG. 4 is a schematic structural diagram of a security suite according to an embodiment of the present invention;

Among the figure: 1, infusion tube 2, puncture needle 3, infusion needle wing 4, sleeve pipe 5, sleeve pipe handle 6, chute 7, stop protrusion 8, stop slot.

detailed description

The structural features of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, Figure 2 and Figure 3, a safety infusion needle includes an infusion tube 1 and a puncture needle 2, and an infusion needle wing 3 is provided at the connection between the puncture needle 2 and the infusion tube 1, and is put on the infusion tube 1 A safety kit is provided, and the safety kit is composed of a sleeve 4 capable of accommodating the puncture needle 2 and a hard sleeve handle 5, and one side of the sleeve 4 is provided with a chute 6 matching the infusion needle wing 3; The groove 6 is provided with one or more limit protrusions 7; the casing handle 5 is provided with a limit groove 8, and the limit groove 8 communicates with the chute 6, from the casing handle 5 to the first limit The length of the bit convex is less than the height of the wing 3 of the infusion needle.

In order to facilitate pushing the infusion needle fin 3 into the limiting groove 8 , the end of the sleeve 4 is designed as a bevel, and the lowest point of the bevel is the entrance of the chute 6 .

There are three limiting protrusions 7 .

It can be seen from FIG. 4 that the chute 6 is not on the same straight line, and more preferably, one section of the chute 6 is arc-shaped. This not only prevents the puncture needle 2 from warping out of the chute 6 due to lateral force, but also enables the infusion needle wing 3 to slide into the limiting groove 8 smoothly.

A preferred embodiment is that the height of the limiting groove 8 is equal to the height of the fin 3 of the infusion needle, and the limiting protrusion 7 closest to the cannula handle 5 is at the junction of the cannula 4 and the cannula handle 5 .

Since the sleeve handle 5 is made of hard material, the limiting groove 8 will not be loose due to external force, and the infusion needle wing 3 will not slip out of the limiting protrusion 7, thereby making it safer and more reliable.

This safety infusion needle is after infusion finishes, and one hand takes sleeve pipe handle 5, and the other hand takes infusion needle fin 3, makes it relative motion, and then infusion needle fin 3 slides into chute 6.

Claims (6)

1. A safety infusion needle, comprising an infusion tube and a puncture needle, characterized in that: an infusion needle wing is arranged at the joint between the puncture needle and the infusion tube, and a safety kit is set on the infusion tube, and the safety kit can accommodate the puncture needle It consists of a sleeve and a hard sleeve handle, and one side of the sleeve is provided with a chute matching the infusion needle fin; one or more stopper protrusions are arranged on the chute; the sleeve pinch A limiting groove is arranged on the handle, and the limiting groove communicates with the chute, and the length from the sleeve handle to the nearest limiting protrusion is less than the height of the fins of the infusion needle. 2. A safety infusion needle according to claim 1, characterized in that: the end of the cannula is designed as an inclined plane, and the lowest point of the inclined plane is the entrance of the chute. 3. A safety infusion needle according to claim 1, characterized in that there are three limiting protrusions. 4. A safety infusion needle according to claim 1, characterized in that: said slide grooves are not on the same straight line. 5. A safety infusion needle according to claim 4, wherein a section of the chute is arc-shaped. 6. A safety infusion needle according to claim 4, characterized in that: the height of the limiting groove is equal to the height of the fins of the infusion needle, and the limit that is closest to the handle of the cannula protrudes between the cannula and the handle. Casing handle junction.