CN222018727U - A safe infusion needle - Google Patents

Abstract

The utility model discloses a safe infusion needle, which belongs to the technical field of medical devices and solves the problem that the needle easily punctures the skin of patients or medical personnel. The utility model comprises an infusion needle assembly, which comprises a needle tube and a push plate arranged on the side wall of the needle tube. A sleeve is movably sleeved on the infusion needle assembly, and the upper end side wall of the sleeve is provided with a fixing groove for clamping the push plate. A sliding groove for the push plate to move up and down is opened on the side wall of the sleeve. The side wall of the sleeve is provided with a stopper assembly for limiting the push plate to move out of the sleeve. A sleeve is sleeved on the needle. When puncture is required, the sleeve is moved backward to expose the needle. After the puncture is completed, the sleeve is moved forward and fixed so that the needle is placed in the sleeve to protect the patient or medical personnel from being punctured.

Description

Safe type transfusion needle

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a safe transfusion needle.

Background

At present, along with the increase of the diseases transmitted by blood, the occupational exposure risk of medical staff is continuously increased, wherein skin stabs are generated in the use process of medical sharp instruments, particularly various injection and puncture needle instruments, the medical sharp instruments form serious threat to the physical and mental health of the medical staff, and the conventional transfusion needle head which is stained with the blood of a patient is easy to cause false stabs in the exposure process of the sharp instruments such as the needle head and the like after the operation is finished, so that the medical staff is infected by the blood to transmit infectious diseases (such as hepatitis and AIDS).

The existing intravenous transfusion needle head is a steel needle, and in the process of pulling out the needle head after venipuncture of a patient, medical staff can easily stab the needle head or the patient when the needle head is exposed outside, the existing protection method is to use a needle cap to cover the needle head, but the risk of stabbing is also caused in the process of sleeving the needle cap.

Disclosure of utility model

Aiming at the problem that the needle is easy to stab the skin of a patient or medical staff in the prior art, the utility model provides a safe transfusion needle, which aims at: a sleeve is sleeved on the needle, the sleeve is moved backwards to expose the needle when the needle needs to be punctured, and the sleeve is moved forwards and fixed after the needle is punctured, so that the needle is placed in the sleeve, and a patient or medical staff is protected from being pricked.

The technical scheme adopted by the utility model is as follows:

The utility model provides a safe type's transfusion needle head, includes transfusion needle subassembly, transfusion needle subassembly includes the needle tubing and sets up the push pedal on the needle tubing lateral wall, the movable sleeve is equipped with the sleeve on the transfusion needle subassembly, telescopic upper end lateral wall is provided with the fixed slot that is used for the joint push pedal, the spout that supplies the push pedal to reciprocate has been seted up on telescopic lateral wall, telescopic lateral wall is provided with the stop subassembly that restriction push pedal moved outside the sleeve.

By adopting the scheme, the needle tube with the needle is connected to the push plate, the push plate is clamped in the fixed groove at the top of the sleeve when the needle is required to be pierced, after the infusion is completed, the push plate is taken out of the fixed groove and rotated into the sliding groove, and finally the push plate is moved to the bottom of the sliding groove, so that the needle is safely placed, the limit of the stop component on the push plate is added, the needle is prevented from moving out of the sleeve, and the problem that the needle is stabbed on a patient or medical staff to cause infection is effectively avoided.

Preferably, the stop assembly comprises an arc-shaped baffle hinged to one side of the chute, and a buckle corresponding to the arc-shaped baffle is arranged on the other side of the chute.

By adopting the scheme, the arc-shaped baffle plate and the buckle are buckled to limit the baffle plate at the bottom of the chute, so that the outward movement of the needle head is avoided.

Preferably, a tension spring for retracting the infusion needle assembly into the sleeve is arranged in the sleeve.

By adopting the scheme, the tension spring is arranged in the sleeve, so that the needle head can be quickly recycled into the sleeve, and the risk of puncture caused by long-time exposure of the needle head is avoided.

Preferably, the bottom of needle tubing is linked together there is the connecting pipe that runs through sleeve bottom, tension spring cover is established on the connecting pipe, tension spring's one end is connected with the bottom of needle tubing, tension spring's the other end is connected with telescopic bottom.

By adopting the scheme, the tension spring is sleeved on the connecting pipe, so that the tension spring can better enable the infusion needle component to retract into the sleeve.

Preferably, the bottom of the needle tube is rotatably provided with a connecting ring, the connecting ring is movably sleeved on the connecting pipe, and the bottom of the connecting ring is connected with the tension spring.

By adopting the scheme, the bottom of the needle tube is rotationally connected with the connecting ring and the connecting ring is connected with the tension spring, and when the push plate rotates to remove the clamping fixing groove, the connecting ring can be kept motionless, so that the tension spring is prevented from losing connection with the bottom of the sleeve, which results in the loss of action of the tension spring.

Preferably, the connecting pipe is a hard plastic pipe.

By adopting the scheme, the connecting pipe is a hard plastic pipe, so that the connecting pipe is not easy to deform in the retraction process of the infusion needle assembly, and the problem that the retraction of the infusion needle assembly is influenced by the sleeve due to the deformation of the soft texture is avoided.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. The needle tubing that has the syringe needle is connected to the push pedal, in the fixed slot at sleeve top with the push pedal joint when needs puncture, after wearing the infusion and finishing, take out the push pedal from the fixed slot and rotatory push pedal arrives in the spout, remove the bottom of spout with the push pedal at last, realize the safe placement of syringe needle to add the restriction of retaining assembly to the push pedal, avoid the syringe needle to shift out from the sleeve, effectually avoided the syringe needle to stab patient or medical personnel to cause the problem of infection.

2. The arc-shaped baffle plate and the buckle are buckled to limit the baffle plate at the bottom of the chute, so that the outward movement of the needle head is avoided.

3. The tension spring is arranged in the sleeve, so that the needle can be quickly recovered into the sleeve, and the risk of puncture due to long-time exposure of the needle is avoided.

4. The tension spring is sleeved on the connecting pipe, so that the tension spring can better enable the infusion needle component to retract into the sleeve.

5. The bottom of needle tubing rotates and connects a go-between and tension spring connection, and when the push pedal rotated the joint fixed slot that removes, the go-between can keep motionless, avoids tension spring to rotate and leads to tension spring and telescopic bottom to lose the connection and lead to tension spring to lose effect.

6. The connecting pipe is a hard plastic pipe, so that the infusion needle component is not easy to deform in the retraction process, and the problem that the retraction of the infusion needle component is influenced by the sleeve due to the deformation of the soft texture is avoided.

Drawings

The utility model will now be described by way of example and with reference to the accompanying drawings in which:

Fig. 1 is a perspective view of the needle of the present utility model without passing through the barrel.

Fig. 2 is a left side cross-sectional view of fig. 1.

Fig. 3 is a perspective view of the needle penetrating sleeve of the present utility model.

Fig. 4 is a schematic view of the structure of the infusion needle assembly.

Fig. 5 is an enlarged schematic view at a of fig. 1.

Description of the drawings: 1-a sleeve; 2-pushing plate; 3-a needle; 4-a fixed groove; 5-sliding grooves; 6-connecting pipes; 7-hose; 8-needle tube; 9-connecting rings; 10-a tension spring; 11-arc baffle.

Detailed Description

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

The present utility model is described in detail below with reference to fig. 1-5.

Embodiment one:

The utility model provides a safe type's transfusion needle head, includes transfusion needle subassembly, transfusion needle subassembly includes needle tubing 8 and sets up push pedal 2 on needle tubing 8 lateral wall, the last movable sleeve of transfusion needle subassembly is equipped with sleeve 1, sleeve 1's upper end lateral wall is provided with the fixed slot 4 that is used for joint push pedal 2, set up the spout 5 that supplies push pedal 2 to reciprocate on sleeve 1's the lateral wall, sleeve 1's lateral wall is provided with the stop subassembly that restriction push pedal 2 moved outside sleeve 1.

The stop assembly comprises an arc-shaped baffle plate 11 hinged to one side of the sliding groove 5, and a buckle corresponding to the arc-shaped baffle plate 11 is arranged on the other side of the sliding groove 5. The buckle is made of elastic material and can be opened after the arc-shaped baffle 11 is buckled.

A tension spring 10 for retracting the infusion needle assembly into the sleeve 1 is arranged in the sleeve 1.

The bottom of needle tubing 8 communicates there is connecting pipe 6 that runs through sleeve 1 bottom, tension spring 10 cover is established on connecting pipe 6, tension spring 10's one end is connected with the bottom of needle tubing 8, tension spring 10's the other end is connected with sleeve 1's bottom.

The bottom of needle tubing 8 rotates and is provided with go-between 9, go-between 9 movable sleeve establishes on connecting pipe 6, the bottom of go-between 9 is connected with tension spring 10.

The connecting pipe 6 is a hard plastic pipe.

In the first embodiment, when the transfusion is needed, the arc baffle 11 is opened, the push plate 2 is pulled to move upwards from the chute 5, the tension spring 10 is stretched and provides a downward tension, the push plate 2 is rotated by a certain angle to be clamped in the fixing groove 4 after moving out of the chute 5, the needle 3 is exposed out of the sleeve 1, then the operation of puncturing transfusion is performed, and the liquid medicine enters from the hose 7 to the connecting pipe 6 and finally flows out from the needle 3 through the needle tube 8.

After the transfusion is finished and the needle head 3 is pulled out, the push plate 2 is pinched by a hand, the push plate 2 is taken out of the fixed groove 4 and moves back into the sliding groove 5, the push plate 2 is released, the transfusion needle assembly is pulled to move towards the bottom of the sleeve 1 by the tension spring 10, and after the push plate 2 stops moving, the arc-shaped baffle 11 is overturned and buckled in the buckle to complete the safe placement of the needle head 3.

The above examples merely illustrate specific embodiments of the application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the application, which fall within the scope of protection of the application.

Claims (4)

1. The safe transfusion needle comprises a transfusion needle assembly, wherein the transfusion needle assembly comprises a needle tube (8) and a push plate (2) arranged on the side wall of the needle tube (8), and is characterized in that a sleeve (1) is movably sleeved on the transfusion needle assembly, a fixing groove (4) for clamping the push plate (2) is formed in the side wall of the upper end of the sleeve (1), a sliding groove (5) for the push plate (2) to move up and down is formed in the side wall of the sleeve (1), and a stop assembly for limiting the push plate (2) to move outwards of the sleeve (1) is arranged on the side wall of the sleeve (1);

A tension spring (10) for retracting the infusion needle assembly into the sleeve (1) is arranged in the sleeve (1);

The bottom of needle tubing (8) is linked together there is connecting pipe (6) that runs through sleeve (1) bottom, tension spring (10) cover is established on connecting pipe (6), the one end of tension spring (10) is connected with the bottom of needle tubing (8), the other end of tension spring (10) is connected with the bottom of sleeve (1).

2. A safety type infusion needle according to claim 1, wherein the stop assembly comprises an arc-shaped baffle plate (11) hinged on one side of the chute (5), and a buckle corresponding to the arc-shaped baffle plate (11) is arranged on the other side of the chute (5).

3. The safe transfusion needle head according to claim 1, wherein a connecting ring (9) is rotatably arranged at the bottom of the needle tube (8), the connecting ring (9) is movably sleeved on the connecting tube (6), and the bottom of the connecting ring (9) is connected with a tension spring (10).

4. A safety infusion needle according to claim 1, wherein the connecting tube (6) is a rigid plastic tube.