CN2857833Y - Deep tissue aspiration pathological biopsy needle - Google Patents
Deep tissue aspiration pathological biopsy needle Download PDFInfo
- Publication number
- CN2857833Y CN2857833Y CN 200520125516 CN200520125516U CN2857833Y CN 2857833 Y CN2857833 Y CN 2857833Y CN 200520125516 CN200520125516 CN 200520125516 CN 200520125516 U CN200520125516 U CN 200520125516U CN 2857833 Y CN2857833 Y CN 2857833Y
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- trocar
- needle
- outer casing
- interior
- interior trocar
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Abstract
A medical deep tissue puncture pathological biopsy needle belonging to medical instrument domain consists mainly of an inner trocar through which a needle is disposed, characterized in that an outer trocar is disposed out of the inner trocar, and cone-shaped puncture heads and cuts are provided on the front terminals of the inner trocar and the outer trocar. The instrument can make biopsy of all kinds of deep tissues, can sample continuously and sample at different sites. The advantages are: high accuracy rate, convenient operation, simple structure, low cost, little pain and easy accept by patients.
Description
Technical field
This utility model belongs to medical equipment, particularly a kind of pathological changes deep tissues pathological biopsy puncture needle.
Background technology
In clinical, when pathological changes appears in some deep tissues, all need the biopsy sampling, carry out pathologic finding, thereby determine the pathological changes type, guarantee diagnoses and treatment.Sampling at present cuts with scalpel in operation process mostly, and this shortcoming that cuts method is: surgical technic requires high, and patient is had damage, and patient is painful big, is difficult for accepting.Another kind is exactly to adopt pin to wear suction method, and this kind method also only can be carried out the cell smear inspection, and positive rate is lower.
Also having occurred the private organizations biopsy needle now, is the utility model of CN2142325 as notification number, and multipurpose negative pressure rotary-cut biopsy needle is made up of outer casing needle and biopsy needle two parts, and the cooperation of two pins penetrates tissue, utilizes the breach rotary-cut tissue of outer casing needle.But this kind biopsy needle, the pathological tissues that cuts out is poor because of the flakiness that is squeezed, the influence check, accuracy rate is low simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of accuracy rate height, deep tissues puncture pathological biopsy pin that the section flakiness is good.
This utility model is achieved in that
Deep tissues puncture pathological biopsy pin, mainly form by interior trocar, be installed with nook closing member in the interior trocar, the rear end of interior trocar is provided with the suction joint, it is characterized in that: interior trocar also is provided with outer casing needle outward to be formed, and the front end of interior trocar, outer casing needle is respectively equipped with the taper puncturing head, has inside and outside otch respectively at the leading section of interior trocar, outer casing needle, inside and outside otch is corresponding mutually, and communicates with the inside of interior trocar.
After this utility model adopts said structure, can be under B ultrasonic or CT guiding accurate localised puncture, utilize the negative pressure rotary-cut to go out little strip pathological tissues, be used for pathologic finding, have accuracy rate height, effect easy to operate, simple in structure, it is complete, accurate to take a sample, and flakiness is good, but and continuous sampling, the transposition cut.Can satisfy various underlying soft tissue biopsy needs, expense is low, misery is little, and patient is easy to accept.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model, and Fig. 2 is the enlarged drawing of Fig. 1.
In the accompanying drawing, 1 is that outer casing needle, 2 is that interior trocar, 3 is that nook closing member, 4 is that interior otch, 5 is that puncturing head, 6 is that joint, 7 is outer otch.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in Figure 1, this utility model is a kind of deep tissues pathologic finding puncture needle that is exclusively used in, and mainly is made up of interior trocar 2 and outer casing needle 1, and the two closely contacts, and can relatively rotate, and the spacing between interior trocar 2 and the outer casing needle 1 is a slice thickness.The front end of interior trocar 2 and outer casing needle 1 is that the syringe needle place is a solid cone shaped puncturing head 5, is used to penetrate deep tissues.Shown in Figure 2, on the pin wall of the interior trocar 2 at puncturing head 5 rear portions, have one with the inner interior otch 4 that communicates, have otch 7 one outside in outer casing needle 1 relevant position, inside and outside otch is correspondence mutually, all is designed to strip.The perpendicular edge of above-mentioned otch is a blade, and two layers of blade cooperatively interact and are used for the rotary-cut tissue.The rear portion of interior trocar 2 is provided with suction joint 6, is used for external syringe, carries out the negative pressure-pumping operation.Also be installed with a nook closing member 3 in interior trocar 2, this nook closing member 3 is a solid construction, is designed to T shape, is used for supporting puncture.
For increasing practicality and operability, outer casing needle 1 outside is provided with scale, is used for grasping and the control depth of needle.
The degree of depth of above-mentioned otch generally is designed to half of trocar diameter.
During use, interior trocar 2 is inserted in the outer casing needle 1, and otch 4 is corresponding with outer otch 7 in making, and penetrates nook closing member 3.Through B ultrasonic or CT guiding, puncture enters pathological tissues, extracts nook closing member 3 out under local anaesthesia.Connect syringe and aspirate, pathological tissues is absorbed under the effect of negative pressure in the otch 4, trocar 2 and outer casing needle 1 in the reverse rotation, and pathological tissues is downcut in flakes by the blade of otch, and falls in the interior trocar 2.Trocar 2 can be taken the disease inspection tissue of strip out of in taking out.As need continuous sampling, trocar 2 in can inserting once more, transposition cuts disease inspection tissue after the aligned slits.Less as getting pathological tissues, organize more after a little while, can also can carry out pathological tissues and cut only with interior trocar 2 and nook closing member 3.
Claims (4)
1, deep tissues puncture pathological biopsy pin, mainly form by interior trocar (2), be installed with nook closing member (3) in the interior trocar (2), the rear end of interior trocar (2) is provided with suction joint (6), it is characterized in that: interior trocar (2) is outer also to be provided with an outer casing needle (1), and the front end of interior trocar (2), outer casing needle (1) is respectively taper puncturing head (5), has inside and outside otch respectively at the leading section of interior trocar (2), outer casing needle (1), inside and outside otch is corresponding mutually, and communicates with the inside of interior trocar (2).
2, puncture pathological biopsy pin according to claim 1, it is characterized in that: above-mentioned incision design is a strip, its vertical edge edge is a blade.
3, puncture pathological biopsy pin according to claim 1 and 2, it is characterized in that: above-mentioned nook closing member (3) is designed to T shape.
4, puncture pathological biopsy pin according to claim 3, it is characterized in that: outer casing needle (1) is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125516 CN2857833Y (en) | 2005-12-02 | 2005-12-02 | Deep tissue aspiration pathological biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125516 CN2857833Y (en) | 2005-12-02 | 2005-12-02 | Deep tissue aspiration pathological biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857833Y true CN2857833Y (en) | 2007-01-17 |
Family
ID=37610694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520125516 Expired - Fee Related CN2857833Y (en) | 2005-12-02 | 2005-12-02 | Deep tissue aspiration pathological biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857833Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652682A (en) * | 2012-04-16 | 2012-09-05 | 中国科学院昆明动物研究所 | Micro brain-tissue sampler |
| CN104266860A (en) * | 2014-10-16 | 2015-01-07 | 南通大学 | Spring type brain slice sampler and sampling method thereof |
| CN108143440A (en) * | 2016-12-02 | 2018-06-12 | 多里瓦·帕罗内托 | Configuration applied to the biopsy device with the reusable trigger for disposable needle |
-
2005
- 2005-12-02 CN CN 200520125516 patent/CN2857833Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652682A (en) * | 2012-04-16 | 2012-09-05 | 中国科学院昆明动物研究所 | Micro brain-tissue sampler |
| CN104266860A (en) * | 2014-10-16 | 2015-01-07 | 南通大学 | Spring type brain slice sampler and sampling method thereof |
| CN108143440A (en) * | 2016-12-02 | 2018-06-12 | 多里瓦·帕罗内托 | Configuration applied to the biopsy device with the reusable trigger for disposable needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |