CN210384534U

CN210384534U - Arc-shaped disposable scalp needle of infusion apparatus with detachable needle handle

Info

Publication number: CN210384534U
Application number: CN201920641852.7U
Authority: CN
Inventors: 严贵敏
Original assignee: Wuhan University WHU
Current assignee: Wuhan University WHU
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-04-24
Anticipated expiration: 2029-05-07

Abstract

The utility model provides a disposable transfusion device scalp needle with an arc-shaped detachable needle handle, which comprises a needle tube, a connecting seat and a needle handle, wherein the needle tube is fixedly connected with the connecting seat, the needle handle is arc-shaped, and the needle handle is detachably connected with the connecting seat; the lower surface of the needle handle is provided with a finger stall which is adhered with the needle handle. The needle handle shape designs into the arc, and needle handle surface area increases, has increased the dynamics that the finger held the needle handle, and the dactylotheca design makes things convenient for the operator to point to grip the needle handle simultaneously, increases the power of gripping of holding the needle person, and the needle handle can be dismantled with the connecting seat and be connected, makes things convenient for the puncture to finish the back with sticky tape fixed connection seat. The utility model discloses simple structure, reasonable and practical, convenient operation conceives ingeniously.

Description

Arc-shaped disposable scalp needle of infusion apparatus with detachable needle handle

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an arc-shaped disposable scalp needle of an infusion apparatus with a detachable needle handle.

Background

The existing scalp needle of the disposable infusion apparatus consists of a needle tube, a needle handle and a connecting seat, wherein the needle handle is too thin and short, a fat-hand operator cannot hold the scalp needle, the scalp needle is easy to shake during holding, the puncture failure rate is improved due to the fact that the needle holding angle is increased, the puncture force is small, a patient feels strong pain, and doctor-patient disputes are caused. Meanwhile, the existing needle handle is fixedly connected to the connecting seat, so that the adhesive tape is not convenient to fix after puncture and tear when the needle is pulled out. Therefore, a disposable scalp needle of an infusion apparatus which can be conveniently held by an operator and can be detached from a needle handle needs to be designed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a needle handle's disposable transfusion system scalp acupuncture can be dismantled to arc, and concrete technical scheme is:

a disposable transfusion device scalp needle with an arc-shaped detachable needle handle comprises a needle tube 1, a connecting seat 2 and a needle handle 3, wherein the needle tube 1 is fixedly connected with the connecting seat 2, the needle handle 3 is arc-shaped, and the needle handle 3 is detachably connected with the connecting seat 2; the lower surface of the needle handle 3 is provided with a finger stall 8, and the finger stall 8 is adhered to the needle handle 3.

The upper surface of the needle handle 3 is provided with a plurality of grooves. The grooves are uniformly distributed on the upper surface of the needle handle 3.

The needle handle is characterized in that a connecting piece 5 is axially arranged on the connecting seat 2, a sliding groove 7 is axially arranged on the connecting piece 5, a bayonet 6 is axially arranged on the side face of the sliding groove 7, a rotating shaft 4 is arranged at one end of the needle handle 3, the rotating shaft 4 is in clearance fit with the sliding groove 7, and the needle handle 3 is in interference fit with the bayonet 6.

The finger stall 8 is made of elastic rubber materials, and the surface of the interior of the finger stall 8 is designed into grids.

The tail end of the connecting seat 2 is provided with a weak ring 9, and the weak ring 9 is a thin and brittle concave ring formed by the sunken tail end of the connecting seat 2.

Compared with the prior art, the novel beneficial effect that has of this use:

the needle handle shape designs into the arc, the increase of needle handle surface area, the area increase of finger contact, the dynamics that the needle handle was controlled to the finger has been increased, become rough recess face with handle surface design simultaneously, increase frictional force, fine anti-skidding effect has, dactylotheca design makes things convenient for the operator finger to grip the needle handle simultaneously, increase needle holder's the power of gripping, the needle handle can be dismantled with the connecting seat and be connected, make things convenient for the puncture to finish the back with sticky tape fixed connection seat, weak ring design makes things convenient for the operator to pull out and puts into the edge tool box with disposable transfusion system scalp acupuncture rupture immediately after the needle, do not have the scissors also can destroy the shape at any time, reduce the probability that the needle pricked was hindered, the utility model discloses simple structure, reasonable.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is an exploded side view of the present invention;

in the figure: 1-needle tube, 2-connecting seat, 3-needle handle, 4-rotating shaft, 5-connecting piece, 6-bayonet, 7-chute, 8-finger sleeve and 9-weak ring

Detailed Description

The invention will be described in further detail with reference to the following figures and specific embodiments:

as shown in fig. 1, the disposable scalp needle of the infusion apparatus with the arc-shaped detachable needle handle comprises a needle tube 1, a connecting seat 2 and a needle handle 3, wherein the needle tube 1 is fixedly connected with the connecting seat 2, the needle handle 3 is arc-shaped, and the needle handle 3 is detachably connected with the connecting seat 2; the lower surface of the needle handle 3 is provided with a finger stall 8, and the finger stall 8 is adhered to the needle handle 3.

The upper surface of the needle handle 3 is provided with a plurality of grooves. The grooves are uniformly distributed on the upper surface of the needle handle 3. The grooves have an anti-slip effect.

2 axial of connecting seat are equipped with connecting

piece

5, 5 axial of connecting piece are equipped with spout 7, the side axial of the connecting seat 2 of not connecting of spout 7 is equipped with

bayonet socket

6, 3 one end of needle handle is equipped with axis of rotation 4, axis of rotation 4 and spout 7 clearance fit, needle handle 3 with 6 interference fit of bayonet socket, needle handle 3 follow axis of rotation 4 at 7 internal rotations of spout, rotate 6 positions of bayonet socket by the chucking, prevent that axis of rotation 4 from the inboard roll-off of spout 7.

The finger stall 8 is made of elastic rubber materials, and the surface of the interior of the finger stall 8 is designed into grids, so that the finger stall has an anti-skidding effect.

The tail end of the connecting seat 2 is provided with a weak ring 9, the weak ring 9 is a thin and brittle concave ring formed by the tail end of the connecting seat 2 in a concave mode, the weak ring 9 is designed to facilitate an operator to break the scalp needle of the disposable infusion apparatus immediately after the needle is pulled out, and the scalp needle can be destroyed at any time without scissors.

When the pressure-adjustable needle is used, the needle handle is designed into an arc shape, the surface area of the needle handle is increased, and the contact area of fingers is increased, so that the needle F is equal to PS, when the pressure P is the same, the larger the stress area S is, the larger the pressure F is, the pressure F is in direct proportion to the stress area S, the contact area of the fingers is increased, the pressure of the fingers can also be increased, and the handle is designed into the arc shape to increase the pressure of the fingers for holding the needle handle; in addition, the friction force is equal to the positive pressure multiplied by the friction factor, and under the condition that the friction factor is not changed, the positive pressure is increased, the friction force is increased, and the larger the friction force is, the more stable the friction force is; the friction factor of the smooth curved surface is very small, and the smooth curved surface is designed into a rough groove surface, so that the friction force is increased, the anti-skidding function is good, and the holding force of a needle holder is increased; simultaneously needle handle and connecting seat can be dismantled and be connected, needle handle 3 follow axis of rotation 4 rotate during the use with 6 interference fit of bayonet socket blocks, injects the forefinger into the dactylotheca simultaneously, grips the needle handle, and the dactylotheca design makes things convenient for the operator to point and grips the needle handle, increases needle holder's the power of gripping, rotates needle handle 3 after the puncture end and leaves bayonet socket 6 through axis of rotation 4 in 7 inboard roll-off of spout, reuse sticky tape fixed connection seat 2 can on the puncture position, when taking off, directly tear the sticky tape and pull out connecting seat 2. The weak ring 9 is designed to facilitate an operator to break the scalp needle of the disposable infusion apparatus immediately after the needle is pulled out and throw the scalp needle into the sharps box, and the scalp needle can be destroyed at any time without scissors, so that the probability of needle stick injury is reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a needle handle's disposable transfusion system scalp acupuncture can be dismantled to arc, includes needle tubing (1), connecting seat (2) and needle handle (3), needle tubing (1) and connecting seat (2) fixed connection, its characterized in that: the needle handle (3) is arc-shaped, and the needle handle (3) is detachably connected with the connecting seat (2); the lower surface of the needle handle (3) is provided with a finger stall (8), and the finger stall (8) is adhered to the needle handle (3).

2. The disposable transfusion system scalp needle with the arc-shaped detachable needle handle according to claim 1, characterized in that: the upper surface of the needle handle (3) is provided with a plurality of grooves.

3. The disposable transfusion system scalp needle with the arc-shaped detachable needle handle according to claim 2, characterized in that: the grooves are uniformly arranged on the upper surface of the needle handle (3).

4. The disposable transfusion system scalp needle with the arc-shaped detachable needle handle according to claim 1, characterized in that: connecting seat (2) axial is equipped with connecting piece (5), connecting piece (5) axial is equipped with spout (7), spout (7) side axial is equipped with bayonet socket (6), needle handle (3) one end is equipped with axis of rotation (4), axis of rotation (4) and spout (7) clearance fit, needle handle (3) with bayonet socket (6) interference fit.

5. The disposable transfusion system scalp needle with the arc-shaped detachable needle handle according to claim 1, characterized in that: the finger stall (8) is made of elastic rubber materials, and the surface of the inside of the finger stall (8) is designed into a grid.

6. The disposable transfusion system scalp needle with the arc-shaped detachable needle handle according to claim 1, characterized in that: the tail end of the connecting seat (2) is provided with a weak ring (9), and the weak ring (9) is a thin and brittle concave ring formed by sinking the tail end of the connecting seat (2).