CN205697955U

CN205697955U - A kind of high accuracy puncture needle

Info

Publication number: CN205697955U
Application number: CN201620332862.9U
Authority: CN
Inventors: 朱军
Original assignee: Shanghai Pulmonary Hospital
Current assignee: Shanghai Pulmonary Hospital
Priority date: 2016-04-19
Filing date: 2016-04-19
Publication date: 2016-11-23
Anticipated expiration: 2026-04-19

Abstract

The utility model discloses a kind of high accuracy puncture needle, including puncture needle body, axially spaced on the needle tubing of puncture needle body it is provided with scale, the needle tubing of puncture needle body is provided with moveable angle steering device, there is on angle steering device angle lock locking member, connect in the distant place of angle steering device and puncture needle body on the needle tubing between end and be provided with moveable depth of needle stop, during use, the front end of depth of needle stop coordinates tail end the moving axially with limited angular steering gear at angle steering device.When this utility model uses, the front end of depth of needle stop coordinates tail end the moving axially with limited angular steering gear at angle steering device, reach to limit the purpose of depth of needle, and angle steering device can control needle angle, coordinated on depth of needle and needle angle by both, this utility model substantially increases inserting needle precision, it is to avoid can bring unnecessary misery and injury to patient.

Description

A kind of high accuracy puncture needle

Technical field

This utility model relates to medical instruments field, particularly to one high accuracy puncture needle.

Background technology

Puncture needle is a kind of conventional medical apparatus and instruments, and it is in fields such as oncology, Anesthesia Department, tuberculosis sections also Often use.The operations such as available puncture needle carries out sampling, drawing liquid, anesthesia.But current puncture It is not provided with stopping means on pin, is in use typically all and judges inserting needle by the experience of doctor The degree of depth and angle, such processing ease brings unnecessary misery and wound due to error in judgement to patient Evil.

To this end, currently also there is partial monopoly to disclose the puncture needle with stopping means, such as Chinese patent Authorization Notice No. CN202365877U, Authorization Notice No. CN203138638U, Authorization Notice No. Patent disclosed in CN203841780U, Authorization Notice No. CN204600619U, but above-mentioned patent does not all have Angular stop means, it is impossible to accurately controlling needle angle, inserting needle precision is relatively low, so also can carry to patient Come unnecessary misery and injury.

Utility model content

The purpose of this utility model is the above-mentioned deficiency for prior art and defect, it is provided that a kind of high-precision Degree puncture needle, to solve the problems referred to above.

This utility model is solved the technical problem that to realize by the following technical solutions:

A kind of high accuracy puncture needle, including puncture needle body, along axle on the needle tubing of described puncture needle body To being arranged at intervals with scale, it is characterised in that be provided with removable on the needle tubing of described puncture needle body Angle steering device, described angle steering device has angle lock locking member, in described angle steering device and institute State and be provided with moveable depth of needle stop on the needle tubing between the distant place connection end of puncture needle body, During use, the front end of described depth of needle stop coordinates the tail end at described angle steering device to limit institute State moving axially of angle steering device.

In a preferred embodiment of the present utility model, described angle steering device includes limiting plate and setting At described limiting plate inner chamber and the gimbal suspension ball that passes for the needle tubing of described puncture needle body, described spacing The front-end and back-end of plate offer breach of stepping down respectively, and described angle lock locking member is for being spun on described limiting plate And extend into the lock screw of described limiting plate inner chamber.

In a preferred embodiment of the present utility model, described depth of needle stop includes being slidably matched Sliding sleeve on the needle tubing of described puncture needle body and limit the locating part that described sliding sleeve slides.

In a preferred embodiment of the present utility model, between described limiting plate and described sliding sleeve, pass through ball Shape face coordinates.

In a preferred embodiment of the present utility model, the periphery of described limiting plate is provided with rotational angle Scale.

Owing to have employed technical scheme as above, when this utility model uses, before depth of needle stop End coordinates tail end the moving axially with limited angular steering gear at angle steering device, reaches to limit inserting needle deep The purpose of degree, and angle steering device can control needle angle, by both at depth of needle and inserting needle angle Coordinating on degree, this utility model substantially increases inserting needle precision, it is to avoid can bring unnecessary pain to patient Hardship and injury.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings Figure.

Fig. 1 is the structural representation of a kind of embodiment of this utility model.

Fig. 2 is the use state diagram of a kind of embodiment of this utility model.

Detailed description of the invention

For the technological means making this utility model realize, creation characteristic, reach purpose and be prone to bright with effect White understanding, is further elucidated below this utility model.

A kind of high accuracy puncture needle shown in Figure 1, including puncture needle body 100, at puncture needle body Axially spaced on the needle tubing 110 of 100 it is provided with scale 111.Needle tubing 110 at puncture needle body 100 On be provided with moveable angle steering device 200, angle steering device 200 has angle lock locking member 210. The effect of angle steering device 200 is so that needle tubing 110 can rotate around the central point of angle steering device 200, And then change needle angle.Angle steering device 200 in the present embodiment includes limiting plate 220 and is arranged on The gimbal suspension ball 230 that limiting plate 220 inner chamber and the needle tubing 110 for puncture needle body 100 pass, spacing The front end 221 of plate 220 and rear end 222 offer step down breach 221a, 222a, angle lock locking member respectively 210 for being spun on limiting plate 220 and extend into the lock screw of limiting plate 220 inner chamber.In order to it is directly perceived Learn the rotational angle of the needle tubing 110 of puncture needle body 100, be provided with in the periphery of limiting plate 220 and turn Dynamic angle index (not shown).

The needle tubing 110 between end 120 is connected in the distant place of angle steering device 200 and puncture needle body 100 On be provided with moveable depth of needle stop 300, during use, the front end of depth of needle stop 300 Coordinate tail end the moving axially with limited angular steering gear 200 at angle steering device 200, and then reach Limit the purpose of depth of needle.The present embodiment in depth of needle stop 300 include being slidably fitted in Sliding sleeve 310 on the needle tubing 110 of puncture needle body 100 and the stop screw of restriction sliding sleeve 310 slip 320.So that the contact surface between angle steering device 200 and depth of needle stop 300 can be smooth Coordinate, coordinated by spherical 223,311 between limiting plate 220 with sliding sleeve 310.

Of the present utility model ultimate principle and principal character and of the present utility model excellent have more than been shown and described Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned Principle of the present utility model is simply described, without departing from this utility model described in embodiment and description On the premise of spirit and scope, this utility model also has various changes and modifications, these changes and improvements In the range of both falling within claimed this utility model.This utility model claims scope by appended power Profit claim and equivalent thereof define.

Claims

1. a high accuracy puncture needle, including puncture needle body, edge on the needle tubing of described puncture needle body Axially spaced-apart is provided with scale, it is characterised in that is provided with and can move on the needle tubing of described puncture needle body Dynamic angle steering device, described angle steering device has angle lock locking member, at described angle steering device and It is provided with moveable depth of needle spacing on needle tubing between the distant place connection end of described puncture needle body Device, during use, the front end of described depth of needle stop coordinates the tail end at described angle steering device with limit Make moving axially of described angle steering device.

2. a kind of high accuracy puncture needle as claimed in claim 1, it is characterised in that described angle turns to Device includes limiting plate and is arranged on described limiting plate inner chamber and supply the needle tubing of described puncture needle body to pass ten thousand To joint ball, the front-end and back-end of described limiting plate offer breach of stepping down, described angle lock locking member respectively For being spun on described limiting plate and extend into the lock screw of described limiting plate inner chamber.

3. a kind of high accuracy puncture needle as claimed in claim 2, it is characterised in that described depth of needle Stop includes the sliding sleeve being slidably fitted on the needle tubing of described puncture needle body and limits described sliding sleeve cunning Dynamic locating part.

4. high accuracy puncture needle as claimed in claim 3 a kind of, it is characterised in that described limiting plate with Coordinated by spherical between described sliding sleeve.

5. a kind of high accuracy puncture needle as described in claim 2 to 4 any claim, its feature exists In, the periphery of described limiting plate is provided with rotational angle scale.