CN203971082U

CN203971082U - Readily removable needle assembly

Info

Publication number: CN203971082U
Application number: CN201420358547.4U
Authority: CN
Inventors: 张伟
Original assignee: ZHEJIANG YIYI MEDICAL DEVICES Co Ltd
Current assignee: ZHEJIANG YIYI MEDICAL DEVICES Co Ltd
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2014-12-03
Anticipated expiration: 2024-06-30

Abstract

The utility model discloses a kind of readily removable needle assembly, its technical scheme main points comprise pinhead sleeve, needle body, pintle, needle body wears one end of being fixed on pintle, the other end cover that described syringe needle is placed on the relative pintle of needle body is connected on the outer wall of pintle, in described pinhead sleeve, be provided with inner sleeve, described inner sleeve be placed on needle body and with pintle fixedly the end face of needle body conflict and be connected, the other end of the relative pintle of described inner sleeve extends outside pinhead sleeve, in described, be placed in pinhead sleeve and form being in axial sliding connection of close contact with the inwall of pinhead sleeve, described pinhead sleeve and inner sleeve are hard material and make.It is more convenient for syringe needle and takes out from pinhead sleeve, effectively solves while choosing syringe needle hand unstable and produce the problem that shake causes syringe needle to be bent or stabs hands by mistake.

Description

Readily removable needle assembly

Technical field

This utility model relates to a kind of syringe needle, and more particularly, it relates to a kind of readily removable needle assembly.

Background technology

Syringe is a kind of apparatus that is widely used in medical treatment and biological technical field, and it is conventionally by syringe body, and syringe needle forms, and syringe needle comprises pintle and needle body, and needle body is fixed on pintle, pintle for syringe body on nipple inlay card fix.Syringe needle on market is conventionally all with pinhead sleeve, and to play the effect of protection syringe needle and instant packed transportation, pinhead sleeve is in the past all the cylindrical of hollow conventionally, an end opening, and one end sealing, opening part is placed on the sidewall of pintle.It is conventionally tighter that yet pinhead sleeve is in the past placed on pintle, and the part that pintle is placed in outside pinhead sleeve is shorter, syringe needle be taken out from pinhead sleeve cumbersomely, conventionally need bimanualness, catch on the other hand pinhead sleeve, another hands is grabbed pintle syringe needle is extracted, and to be stuck in pintle surface tighter due to pinhead sleeve, needs to use compared with great strength, while extracting syringe needle, hand is easily shaken, have the possibility of by mistake stabbing hand, shake also easily makes syringe needle bump against on the inwall of pinhead sleeve, causes syringe needle to be bent.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of readily removable needle assembly, it is more convenient for syringe needle and takes out from pinhead sleeve, effectively solves while choosing syringe needle hand unstable and produce the problem that shake causes syringe needle to be bent or stabs hands by mistake.

For achieving the above object, this utility model provides following technical scheme: a kind of readily removable needle assembly, comprise pinhead sleeve, needle body, pintle, needle body wears one end of being fixed on pintle, the other end cover that described syringe needle is placed on the relative pintle of needle body is connected on the outer wall of pintle, in described pinhead sleeve, be provided with inner sleeve, described inner sleeve be placed on needle body and with pintle fixedly the end face of needle body conflict and be connected, the other end of the relative pintle of described inner sleeve extends outside pinhead sleeve, in described, be placed in pinhead sleeve and form being in axial sliding connection of close contact with the inwall of pinhead sleeve, described pinhead sleeve and inner sleeve are hard material and make.

By adopting technique scheme, can be by being internally placed on the other hand the part application of force outside pinhead sleeve, inner sleeve contacts at pintle fixedly on the end face of needle body, and pintle and needle body are ejected outside pinhead sleeve, another hands just can take out pintle easily, when pintle is ejected pinhead sleeve, needle body is still placed in inner sleeve, can better to syringe needle, protect, can not cause press-bending phenomenon to needle body, inner sleeve is tightly also to contact on pintle, needle body is taken out from inner sleeve without exerting oneself, just can not exist the pintle of need to firmly choosing to cause the problem of hand shake, also just can not stab hand and curve needle body.

This utility model is further set to: the outer wall that is placed on the part in pinhead sleeve in described is fixedly connected with contiguous block, described pinhead sleeve bottom is provided with and prevents that contiguous block from deviating from the edge in pinhead sleeve, and described contiguous block and pinhead sleeve inwall close contact formation are in axial sliding connection.

By adopting technique scheme, by contiguous block and pinhead sleeve inwall, be slidably connected and compare inner sleeve and directly fit in pinhead sleeve inwall, contact surface is less, thereby reduce friction, more easily, be placed in pinhead sleeve and slide, and contiguous block and edge also can play by the mode of inlay card and prevent that inner sleeve from directly deviating from the effect in pinhead sleeve.

This utility model is further set to: described contiguous block is a plurality of, and has at least one to be located on the outer wall of inner sleeve near edge place, and residue contiguous block is evenly distributed in outer wall of inside race.

By adopting technique scheme; contiguous block is a plurality ofly can play better fixation for inner sleeve; make it can be not tilted in pinhead sleeve; affecting needle body is through in inner sleeve; and have at least a contiguous block to be located on the outer wall of inner sleeve near edge place; the part being placed in can guaranteeing in pinhead sleeve is enough to meet the needs of accommodating needle body, and needle body is played to better protection.

This utility model is further set to: the bottom that described inner sleeve is extended outside pinhead sleeve is fixedly connected with handle.

By adopting technique scheme, by handle, press inner sleeve, more convenient, and be difficult for by pain finger.

Accompanying drawing explanation

Fig. 1 is the profile one of the readily removable needle assembly embodiment of this utility model;

Fig. 2 is the profile two of the readily removable needle assembly embodiment of this utility model.

Description of reference numerals: 1, pintle; 2, needle body; 3, pinhead sleeve; 4, inner sleeve; 31, edge; 41, contiguous block; 42, handle.

The specific embodiment

Referring to figs. 1 through Fig. 2, the readily removable needle assembly embodiment of this utility model is described further.

The readily removable needle assembly of the present embodiment, comprise pinhead sleeve 3, needle body 2, pintle 1, needle body 2 wears one end of being fixed on pintle 1, described pinhead sleeve 3 is connected on pintle 1 outer wall in the needle tip cover of needle body 2, in described pinhead sleeve 3, be provided with inner sleeve 4, described inner sleeve 4 is placed on needle body 2 and contacts at pintle 1 fixedly on the end face of needle body 2, the other end of described inner sleeve 4 relative pintles 1 extends outside pinhead sleeve 3, described inner sleeve 4 forms being in axial sliding connection of close contact with the inwall of pinhead sleeve 3 in pinhead sleeve 3, and described pinhead sleeve 3 is hard material with inner sleeve 4 and makes.Can be by the other hand inner sleeve 4 being placed in to the part application of force outside pinhead sleeve 3, inner sleeve 4 contacts at pintle 1 fixedly on the end face of needle body 2, and pintle 1 and needle body 2 are ejected outside pinhead sleeve 3, another hands just can take out pintle 1 easily, when pintle 1 is ejected pinhead sleeve 3, needle body 2 is still placed in inner sleeve 4, can better to syringe needle, protect, can not cause press-bending phenomenon to needle body 2, inner sleeve 4 is tightly also to contact on pintle 1, needle body 2 is taken out from inner sleeve 4 without exerting oneself, just can not exist the pintle 1 of need to firmly choosing to cause the problem of hand shake, also just can not stab hand and curve needle body 2.Pinhead sleeve 3 and inner sleeve 4 all can adopt medical plastic to form, as transparent medical grade polypropylene of height etc., its hardness, smoothness are all enough to meet inner sleeve 4 in the interior slip of pinhead sleeve 3, and the needs that pintle 1 ejected by inner sleeve 4, if soft material, cannot obtain above-mentioned effect.

The outer wall that described inner sleeve 4 is placed in the part in pinhead sleeve 3 is fixedly connected with contiguous block 41, and described contiguous block 41 is with pinhead sleeve 3 inwall close contacts and form and be in axial sliding connection, and described pinhead sleeve 3 bottoms are provided with and prevent that contiguous block 41 from deviating from the edge 31 in pinhead sleeve 3.By contiguous block 41 and pinhead sleeve 3 inwalls, be slidably connected and compare inner sleeve 4 and directly fit in pinhead sleeve 3 inwalls, contact surface is less, thereby reduce friction, easier inner sleeve 4 is in the interior slip of pinhead sleeve 3, and contiguous block 41 and edge 31 also can play by the mode of inlay card and prevent that inner sleeve 4 from directly deviating from the effect in pinhead sleeve 3.The bottom end face that described edge 31 is pinhead sleeve 3 is established hole and is passed rear last end wall for inner sleeve 4, and it is with pinhead sleeve 3 for by the machine-shaping of mould one, and described contiguous block 41 and inner sleeve 4 are also processed by mould one.

Described contiguous block 41 is a plurality of, and has at least one to be located on the outer wall of inner sleeve 4 near edge 31 places, and described residue contiguous block 41 is evenly distributed in inner sleeve 4 outer walls.Contiguous block 41 is evenly distributed in inner sleeve 4 outer walls for a plurality of, can play better fixation for inner sleeve 4, make it can be not tilted in pinhead sleeve 3, affecting needle body 2 is through in inner sleeve 4, an if single contiguous block 41, inner sleeve 4 is single with pinhead sleeve 3 inwall supports place, and inner sleeve 4 is longer again, easily in the interior generation of pinhead sleeve 3, tilts.And have at least a contiguous block 41 to be located on the outer wall of inner sleeve 4 near edge 31 places, can guarantee that the part that inner sleeve 4 is placed in pinhead sleeve 3 is enough to meet the needs of accommodating needle body 2, needle body 2 is played to better protection, if contiguous block herein 41 is past near pintle 1 side setting, originally just contact at pintle 1 fixedly the inner sleeve 4 of the end face of needle body 2 also can outside pinhead sleeve 3, deviate from, until there is contiguous block 41 to block edge 31, just cannot outwards deviate from, therefore can cause a part of needle body 2 cannot be placed in inner sleeve 4, design herein can effectively guarantee that the length that inner sleeve 4 is placed in the part in pinhead sleeve 3 meets the needs of accommodating needle body 2 all the time.

The bottom that described inner sleeve 4 is extended outside pinhead sleeve 3 is fixedly connected with handle 42.Because inner sleeve 4 passes in pinhead sleeve 3, it is conventionally thinner, press...withes one's finger and easily will point and press pain while pressing inner sleeve 4, therefore increase above-mentioned setting, by handle 42, to press inner sleeve 4 more convenient, and be difficult for pointing by aching.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, all within design concept of the present utility model, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a readily removable needle assembly, comprise pinhead sleeve, needle body, pintle, needle body wears one end of being fixed on pintle, the other end cover that described syringe needle is placed on the relative pintle of needle body is connected on the outer wall of pintle, it is characterized in that: in described pinhead sleeve, be provided with inner sleeve, described inner sleeve be placed on needle body and with pintle fixedly the end face of needle body conflict and be connected, the other end of the relative pintle of described inner sleeve extends outside pinhead sleeve, in described, be placed in pinhead sleeve and form being in axial sliding connection of close contact with the inwall of pinhead sleeve, described pinhead sleeve and inner sleeve are hard material and make.

2. readily removable needle assembly according to claim 1, it is characterized in that: the outer wall that is placed on the part in pinhead sleeve in described is fixedly connected with contiguous block, described pinhead sleeve bottom is provided with and prevents that contiguous block from deviating from the edge in pinhead sleeve, and described contiguous block and pinhead sleeve inwall close contact formation are in axial sliding connection.

3. readily removable needle assembly according to claim 2, is characterized in that: described contiguous block is a plurality of, and has at least one to be located on the outer wall of inner sleeve near edge place, and residue contiguous block is evenly distributed in outer wall of inside race.

4. according to the readily removable needle assembly described in claim 1 or 2 or 3, it is characterized in that: the bottom that described inner sleeve is extended outside pinhead sleeve is fixedly connected with handle.