CN111939072B

CN111939072B - Needle head protection device

Info

Publication number: CN111939072B
Application number: CN202010826857.4A
Authority: CN
Inventors: 龚自凤; 钱永琴; 王晶
Original assignee: Affiliated Hospital of Zunyi Medical University
Current assignee: Affiliated Hospital of Zunyi Medical University
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2023-09-19
Anticipated expiration: 2040-08-17
Also published as: CN111939072A

Abstract

The technical proposal discloses a needle head protection device in the field of medical appliances, which comprises a fixed ring, an adjusting mechanism, a mounting cylinder and a guide cylinder, wherein the axial direction of the mounting cylinder and the guide cylinder are communicated; the guide cylinder is movably connected in the mounting cylinder, and the fixing ring is sleeved on the mounting cylinder; the adjusting mechanism comprises a circular ring and an inverted conical cone head, the circular ring is fixedly connected to the bottom of the mounting cylinder, the inner wall of the fixing ring is attached to the outer wall of the larger end of the cone head, the larger end of the cone head is provided with a guide hole with gradually reduced aperture, and the cone head is composed of a plurality of fan-shaped blocks rotationally connected to the circular ring. By the needle head protection device, the rubber plug of the medicine bottle is pierced by the conical head, so that the phenomenon that the rubber plug is blunted due to piercing of the needle head is avoided.

Description

Needle head protection device

Technical Field

The application belongs to the field of medical appliances, and particularly relates to a needle head protection device.

Background

In surgical medical procedures such as laser cosmetology, it is often necessary to inject a drug into a patient. When preparing medicines, the needle is required to be inserted into different medicine bottles to suck the medicine liquid, then a plurality of medicine liquids are mixed, and then the patient is injected. Because the medicine bottle is generally sealed by adopting the rubber plug, before the needle is used for sucking the medicine liquid in the medicine, the needle needs to pierce the rubber plug on the medicine bottle, and the needle can be dulled in the process of piercing a plurality of rubber plugs by the needle, when the needle is used for injecting the medicine to a patient, the patient can feel pain because of dulled needle.

For this situation, the current main solution is to replace the needle, but replacing the needle results in a great waste of the needle.

Disclosure of Invention

The application aims to provide a needle head protection device which solves the problem that the current rubber stopper of a medicine bottle is pierced by directly using a needle head, so that the needle head becomes blunt.

The needle head protection device comprises a fixed ring, an adjusting mechanism, a mounting cylinder and a guide cylinder, wherein the mounting cylinder and the guide cylinder are communicated in the axial direction; the guide cylinder is movably connected in the mounting cylinder, and the fixing ring is sleeved on the mounting cylinder; the adjusting mechanism comprises a circular ring and an inverted conical cone head, the circular ring is fixedly connected to the bottom of the mounting cylinder, the inner wall of the fixing ring is attached to the outer wall of the larger end of the cone head, the larger end of the cone head is provided with a guide hole with gradually reduced aperture, and the cone head is composed of a plurality of fan-shaped blocks rotationally connected to the circular ring.

The working principle and the beneficial effect of the scheme are that: when the conical head is used, the fixing ring is moved upwards, and the conical head is fastened by the fixing ring, so that the smaller end of the conical head is in a needle-tip shape. The rubber stopper of the medicine bottle is pierced by the conical head, and then the guide cylinder is moved downwards, and the sector blocks are outwards expanded by the guide cylinder through the guide holes of the conical head, so that gaps are formed among the sector blocks. The needle head for sucking medicine passes through the gap between the guide cylinder and the sector block, and then medicine in the medicine bottle is sucked. Through the syringe needle protection device in this scheme, let the conical head impale the rubber stopper of medicine bottle earlier, avoided the syringe needle to impale the rubber stopper and lead to its blunt condition to take place.

Further, the fixed ring is in threaded sleeve connection with the mounting cylinder. The fixing ring is in threaded sleeve connection with the mounting cylinder, the fixing ring can be rotated to achieve lifting, and in the rotating process, the fixing ring is in threaded connection with the mounting cylinder, so that the fixing ring can be fixed during rotation.

Further, a notch is arranged at the middle part of the fixing ring. Through the setting of breach, be convenient for observe the fixed ring and the hookup location of conical head.

Further, still be equipped with fixed establishment on the installation section of thick bamboo, fixed establishment includes two sets of fastening components and rotates the rotatory piece of connecting on the installation section of thick bamboo, and fastening components includes fixed plate, dwang and dwang, and fixed plate fixed connection is in the upper end of installation section of thick bamboo, and two dwang rotate respectively and connect the both sides at rotatory piece, and the one end that the dwang kept away from the rotatory piece rotates to be connected on the one end of dwang, and the other end of dwang rotates to be connected on the fixed plate. Through rotating the rotatory piece, the rotatory piece rotates and drives the dwang and rotate, and the dwang rotates and drives two fastening rods and rotate to opposite direction, and two fastening rods of opposite direction pivoted can fix syringe needle protection device on the medicine bottle.

Further, the rotating block is in threaded connection with the mounting cylinder. The rotating block is in threaded connection with the mounting cylinder, so that the rotating block can be rotated and simultaneously fixed, and the use is more convenient.

Further, a handle is arranged on the rotating block. Through the setting of handle, the rotatory piece of rotation of being convenient for.

Further, a connecting rod is arranged on the circular ring, and the circular ring is fixedly connected to the bottom of the mounting cylinder through the connecting rod; the sector block is provided with a connecting block, and the sector block is rotationally connected to the circular ring through the connecting block. Through the setting of connecting rod and connecting hole for ring and installation section of thick bamboo, be connected between sector block and the ring more conveniently.

Further, a chamfer is arranged at the bottom of the guide cylinder. The setting of chamfer is convenient for install and can play the guide effect.

Drawings

FIG. 1 is a schematic view showing a needle protecting device according to embodiment 1 of the present application;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a top view of the adjustment mechanism of FIG. 1;

fig. 4 is a schematic view showing a structure of a needle protecting device in embodiment 2 of the present application.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: guide cylinder 1, mounting cylinder 2, fixed ring 3, chamfer 4, connecting rod 5, ring 6, connecting block 7, conical head 8, through-hole 9, sector 10, guiding hole 11, fastening rod 12, swivelling lever 13, swivelling block 14, handle 15, fixed plate 16.

Example 1 is basically as shown in fig. 1 to 3: a needle head protection device comprises a fixed ring 3, an adjusting mechanism, a mounting cylinder 2 and a guide cylinder 1, wherein the mounting cylinder 2 is provided with a through hole 9 in the axial direction; the guide cylinder 1 is in threaded connection in the mounting cylinder 2, and the bottom of the guide cylinder 1 is provided with a chamfer 4; the fixed ring 3 is in threaded sleeve connection with the mounting cylinder 2; the adjusting mechanism comprises a circular ring 6 and an inverted conical head 8, two connecting rods 5 are arranged on the circular ring 6, and the circular ring 6 is fixedly connected to the bottom of the mounting cylinder 2 through the two connecting rods 5; the inner wall of the fixed ring 3 is attached to the outer wall of the larger end of the conical head 8, the end part of the larger end of the conical head 8 is provided with a guide hole 11 with gradually reduced aperture, the conical head 8 is composed of eight fan-shaped blocks 10 which are rotationally connected to the circular ring 6, the top of each fan-shaped block 10 is provided with a connecting block 7, and each fan-shaped block 10 is rotationally connected to the circular ring 6 through the corresponding connecting block 7.

Embodiment 2 substantially as shown in fig. 4, a needle protecting device is different from embodiment 1 only in that: the mounting cylinder 2 is also provided with a fixing mechanism, the fixing mechanism comprises two groups of fastening components and a rotating block 14 which is in threaded connection with the mounting cylinder 2, the two groups of fastening components are respectively positioned at two sides of the rotating block 14, the fastening components comprise a fixing plate 16, a rotating rod 13 and a fastening rod 12, the fixing plate 16 is in a 'L' -shape and is fixedly connected with the upper end of the mounting cylinder 2, the two rotating rods 13 are respectively and rotatably connected at two sides of the rotating block 14, one end of the rotating rod 13, which is far away from the rotating block 14, is rotatably connected at one end of the fastening rod 12, and limiting grooves used for the rotating rod 13 to pass through when rotating are respectively arranged on the fastening rod 12 and the rotating block 14; the other end of the fastening rod 12 is rotatably connected to the fixing plate 16.

Taking example 2 as an example, in use, the retaining ring 3 is rotated clockwise until the retaining ring 3 holds the eight segments 10 together to form a complete inverted cone 8, and the needle guard is depressed until the cone 8 pierces the rubber stopper of the vial. Then the rotating block 14 is rotated anticlockwise through the handle 15, the rotating block 14 rotates to drive the rotating rod 13 to rotate, the rotating rod 13 drives the fastening rods 12 to rotate, and the needle head protection device can be fixed on the medicine bottle from two sides of the medicine bottle due to the fact that the two fastening rods 12 rotate oppositely. Rotating the guide cylinder 1 clockwise, the guide cylinder 1 moves down to press the guide hole 11 against the sector 10, knowing that the sector 10 expands outwards and forms a gap through which the needle passes. The needle head passes through the through hole 9 of the guide cylinder 1, and can directly enter the medicine bottle through the gap between the fan-shaped blocks 10 to suck medicine, thereby avoiding the occurrence of the condition that the needle head is changed or damaged.

The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. A needle protection device, characterized in that: comprises a fixed ring, an adjusting mechanism, a mounting cylinder and a guide cylinder, wherein the axis direction of the mounting cylinder and the axis direction of the guide cylinder are all communicated; the guide cylinder is movably connected in the mounting cylinder, and the fixing ring is sleeved on the mounting cylinder; the adjusting mechanism comprises a circular ring and an inverted conical cone head, the circular ring is fixedly connected to the bottom of the mounting cylinder, the inner wall of the fixed ring is attached to the outer wall of the larger end of the cone head, the larger end of the cone head is provided with a guide hole with gradually reduced aperture, and the cone head consists of a plurality of sector blocks which are rotatably connected to the circular ring; the mounting cylinder is also provided with a fixing mechanism, the fixing mechanism comprises two groups of fastening components and a rotating block rotationally connected to the mounting cylinder, the fastening components comprise a fixing plate, rotating rods and fastening rods, the fixing plate is fixedly connected to the upper end of the mounting cylinder, the two rotating rods are respectively rotationally connected to two sides of the rotating block, one end of each rotating rod, far away from the rotating block, is rotationally connected to one end of the corresponding fastening rod, and the other end of each fastening rod is rotationally connected to the fixing plate; the rotating block is connected to the mounting cylinder in a threaded manner; the rotating block is provided with a handle; the circular ring is provided with a connecting rod and is fixedly connected to the bottom of the mounting cylinder through the connecting rod; the sector block is provided with a connecting block, and is rotationally connected to the circular ring through the connecting block;

when the conical head is used, the fixing ring is moved upwards, and the conical head is fastened by the fixing ring, so that the smaller end of the conical head is in a needle-tip shape; the rubber stopper of the medicine bottle is pierced by the conical head, and then the guide cylinder is moved downwards, and the sector blocks are outwards expanded by the guide cylinder through the guide holes of the conical head, so that gaps are formed among the sector blocks; the needle head for sucking medicine passes through the gap between the guide cylinder and the sector block, and then medicine in the medicine bottle is sucked.

2. A needle protection device according to claim 1, wherein: the fixed ring is in threaded sleeve connection with the mounting cylinder.

3. A needle protection device according to claim 2, wherein: the middle part of the fixed ring is provided with a notch.

4. A needle protection device according to claim 3, wherein: the bottom of the guide cylinder is provided with a chamfer angle.