CN205697848U - Plug formula marrow puncture needle - Google Patents

Plug formula marrow puncture needle Download PDF

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Publication number
CN205697848U
CN205697848U CN201620217893.XU CN201620217893U CN205697848U CN 205697848 U CN205697848 U CN 205697848U CN 201620217893 U CN201620217893 U CN 201620217893U CN 205697848 U CN205697848 U CN 205697848U
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CN
China
Prior art keywords
syringe
matsurface
hollow frustum
puncture needle
marrow puncture
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201620217893.XU
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Chinese (zh)
Inventor
李业中
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Jiangsu Huaxing Medical Instruments Industry Co Ltd
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Jiangsu Huaxing Medical Instruments Industry Co Ltd
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Priority to CN201620217893.XU priority Critical patent/CN205697848U/en
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Abstract

The utility model discloses a kind of plug formula marrow puncture needle, including: cylinder seat and needle core base, it is fixed with syringe on described cylinder seat, it is fixed with nook closing member on described needle core base, described nook closing member is co-axially located at inside syringe, realizes fixing and separating by an active card connection device between described cylinder seat and needle core base;The front end of described syringe is internally provided with the clamping part being easy to block lesion tissue, described clamping part includes a hollow frustum, the front end face of the close syringe of going to the bottom of described hollow frustum, the upper end, is away from the front end face of syringe, on the inner surface being fixed on syringe leading section of going to the bottom of described hollow frustum, going to the bottom and between syringe front end face for coarse section of syringe of described hollow frustum, having the first matsurface on the inner surface that described syringe is coarse section, described hollow frustum is away from having the second matsurface in the one side of barrel inside surface.By the way, this utility model is simple and reasonable, it is possible to the disposable lesion tissue taking out q.s, convenient and practical.

Description

Plug formula marrow puncture needle
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of plug formula marrow puncture needle.
Background technology
Bone marrow puncture (bone marrow puncture) is that the one taking bone marrow fluid commonly uses diagnostic techniques, and its scope of examination includes several aspects such as cytology, protozoon and bacteriology.It is applicable to various hemopathic diagnosis, Differential Diagnosis and follow up;The erythrocyte of unknown cause, leukocyte, platelet counts increase or reduce and morphological abnormalities;The Diagnosis and differential diaggnosis of FUO, can make bone marrow and cultivate, and parasite etc. looked for by bone marrow smear.The open a kind of plug formula marrow puncture needle of Chinese patent application 201220066799.0, the lesion tissue amount that this puncture needle the most disposably takes out is less, the most even needs repeatedly to puncture, and increases the pain of patient.
Utility model content
This utility model is mainly solving the technical problems that provide a kind of plug formula marrow puncture needle, simple and reasonable, it is possible to the disposable lesion tissue taking out q.s, convenient and practical.
For solving above-mentioned technical problem, the technical scheme that this utility model uses is: provide a kind of plug formula marrow puncture needle, including: cylinder seat and needle core base, it is fixed with syringe on described cylinder seat, it is fixed with nook closing member on described needle core base, described nook closing member is co-axially located at inside syringe, realizes fixing and separating by an active card connection device between described cylinder seat and needle core base;
The front end of described syringe is internally provided with the clamping part being easy to block lesion tissue, described clamping part includes a hollow frustum, the front end face of the close syringe of going to the bottom of described hollow frustum, the upper end, is away from the front end face of syringe, on the inner surface being fixed on syringe leading section of going to the bottom of described hollow frustum, going to the bottom and between syringe front end face for coarse section of syringe of described hollow frustum, having the first matsurface on the inner surface that described syringe is coarse section, described hollow frustum is away from having the second matsurface in the one side of barrel inside surface.
In one preferred embodiment of this utility model, the roughness of described first matsurface is Ra12 ~ 15.
In one preferred embodiment of this utility model, the roughness of described first matsurface is Ra13.
In one preferred embodiment of this utility model, the roughness of described second matsurface is Ra16 ~ 18.
In one preferred embodiment of this utility model, the roughness of described second matsurface is Ra17.
In one preferred embodiment of this utility model, the part that the described upper end contacts with nook closing member is polished into circular arc.
The beneficial effects of the utility model are: this utility model plug formula marrow puncture needle, simple and reasonable, it is possible to the disposable lesion tissue taking out q.s, convenient and practical.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of this utility model plug formula marrow puncture needle one preferred embodiment;
Fig. 2 is the structural representation of described syringe leading section.
In accompanying drawing, the labelling of each parts is as follows: 1, cylinder seat, and 2, needle core base, 3, syringe, 4, nook closing member, 5, hollow frustum, 6, coarse section of syringe.
Detailed description of the invention
Technical scheme in this utility model embodiment will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Referring to Fig. 1 and Fig. 2, this utility model embodiment includes:
A kind of plug formula marrow puncture needle, including: cylinder seat 1 and needle core base 2, described cylinder seat 1 is fixed with syringe 3, described needle core base 2 is fixed with nook closing member 4, described nook closing member is co-axially located at inside syringe, realizes fixing and separating by an active card connection device between described cylinder seat and needle core base.
The front end of described syringe 3 is internally provided with the clamping part being easy to block lesion tissue, described clamping part includes a hollow frustum 5, the front end face of the close syringe of going to the bottom of described hollow frustum 5, the upper end, is away from the front end face of syringe, on the inner surface being fixed on syringe leading section of going to the bottom of described hollow frustum, syringe 3 front end cutting edge cutting lesion tissue during use, lesion tissue is to syringe 3 Inner extrusion, enter inside the syringe at hollow frustum 5 rear, thus be stuck, can easily take out the lesion tissue of q.s.
Going to the bottom and between syringe front end face for syringe coarse section 6 of described hollow frustum 5, there is on the inner surface that described syringe is coarse section the first matsurface, described hollow frustum is away from having the second matsurface in the one side of barrel inside surface, described first matsurface and the second matsurface combine, be conducive to making the lesion tissue between hollow frustum 5 and syringe 3 front end face be retained in inside syringe, so that more lesion tissue disposably can be taken out.
The roughness of described first matsurface is Ra12 ~ 15, it is preferred that the roughness of described first matsurface is Ra13, and roughness is suitable, is conducive to stopping lesion tissue.
The roughness of described second matsurface is Ra16 ~ 18, it is preferred that the roughness of described second matsurface is Ra17, and roughness is suitable, is conducive to stopping lesion tissue.
Preferably, the part that the described upper end contacts with nook closing member is polished into circular arc, to reduce the friction between the upper end and nook closing member outer surface.
The beneficial effects of the utility model are: this utility model plug formula marrow puncture needle, simple and reasonable, it is possible to the disposable lesion tissue taking out q.s, convenient and practical.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in scope of patent protection of the present utility model.

Claims (6)

1. a plug formula marrow puncture needle, it is characterized in that, including: cylinder seat and needle core base, it is fixed with syringe on described cylinder seat, it is fixed with nook closing member on described needle core base, described nook closing member is co-axially located at inside syringe, realizes fixing and separating by an active card connection device between described cylinder seat and needle core base;
The front end of described syringe is internally provided with the clamping part being easy to block lesion tissue, described clamping part includes a hollow frustum, the front end face of the close syringe of going to the bottom of described hollow frustum, the upper end, is away from the front end face of syringe, on the inner surface being fixed on syringe leading section of going to the bottom of described hollow frustum, going to the bottom and between syringe front end face for coarse section of syringe of described hollow frustum, having the first matsurface on the inner surface that described syringe is coarse section, described hollow frustum is away from having the second matsurface in the one side of barrel inside surface.
Plug formula marrow puncture needle the most according to claim 1, it is characterised in that the roughness of described first matsurface is Ra12 ~ 15.
Plug formula marrow puncture needle the most according to claim 2, it is characterised in that the roughness of described first matsurface is Ra13.
Plug formula marrow puncture needle the most according to claim 1, it is characterised in that the roughness of described second matsurface is Ra16 ~ 18.
Plug formula marrow puncture needle the most according to claim 4, it is characterised in that the roughness of described second matsurface is Ra17.
Plug formula marrow puncture needle the most according to claim 4, it is characterised in that the part that the described upper end contacts with nook closing member is polished into circular arc.
CN201620217893.XU 2016-03-22 2016-03-22 Plug formula marrow puncture needle Active CN205697848U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620217893.XU CN205697848U (en) 2016-03-22 2016-03-22 Plug formula marrow puncture needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620217893.XU CN205697848U (en) 2016-03-22 2016-03-22 Plug formula marrow puncture needle

Publications (1)

Publication Number Publication Date
CN205697848U true CN205697848U (en) 2016-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620217893.XU Active CN205697848U (en) 2016-03-22 2016-03-22 Plug formula marrow puncture needle

Country Status (1)

Country Link
CN (1) CN205697848U (en)

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