CN207949828U - A kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set - Google Patents

Abstract

The utility model is related to biopsy needle set technical fields, especially a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set, the housing tube chamber through outer tube is offered in the outer tube, and inner core is plugged in outer tube intracavitary, the inner core bottom is also equipped with inner core tailgate, and core hollow column tail portion duct is further opened on inner core tailgate, the inner core upper end is additionally provided with inner core needle point, and needle point inner face groove is provided in inner core needle point, the interior in-core offers the core hollow column through inner core, and core hollow column and core hollow column tail portion hole link, multiple core hollow column side openings are provided on the core hollow column, inner core blade structure there are three being also set up on core hollow column on the downside of the inner core needle point.The operation amplitude is small, it is only necessary to which minute quantity hydrothorax, handy and safe, pain is small, thin layer pleura reaction is few, and inner core sharp cutter, groove, barb and the attached suction of negative pressure are stablized, and materials are reliable.

Description

A kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set

Technical field

The utility model is related to biopsy needle set technical fields more particularly to a kind of propeller-like negative pressure rotary-cut thin layer pleura to live Examine needle set.

Background technology

Thin layer biopsy of pleura plays the Diagnosis and differential diaggnosis of chest disease and curative effect evaluation etc. important Effect, but due to the characteristic of Chest Wall Structure, the biopsy extraction of thin layer pleura is often relatively difficult, not a duck soup, materials or Relatively low or wound is larger, painful and thin layer pleura reaction incidence height etc. for cumbersome and success.Clinically thin layer pleura is drawn materials at present Mode mainly has as follows：" patterning method under operation or thoracoscope ", " puncture needle launches automatic cutting method " and " puncture needle scraping Method " wherein the advantages of modes such as " operation or thoracoscope method " is that effect determines, but is obviously that should not be used as conventional use； " puncture needle ejection method " is easy, quick, pain is small, but it is only effective for the thicker thin layer pleura of lesion, can not get thin layer Thin layer pleura and in clinical application be limited；" puncture needle, which is scraped, follows the example of " is current more common means, can obtain thin layer Thin layer pleura Pathologic specimen, but defect be to operate it is relatively complicated, draw materials successfully it is relatively low, patient's pain is more apparent and causes Thin layer pleura reaction incidence height etc..In view of above, purpose of the present invention is to design the thin layer of a kind of convenient, safety and definite effect The new needle set of pleural biopsy has wholesome effects it is expected that above-mentioned puncture is overcome to scrape and launch the defect of method and becomes thin layer pleura either Thin layer pleura or the materials pathological biopsy for thickening thin layer pleura sample.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of propeller-like proposed is negative Press rotary-cut thin layer biopsy of pleura needle set.

To achieve the goals above, the utility model uses following technical solution：

Design a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set, including inner core and outer tube, outer sleeve bottom It is also equipped with outer tube tailgate, the housing tube chamber through outer tube is offered in the outer tube, and inner core is plugged in outer tube Intracavitary, the inner core bottom are also equipped with inner core tailgate, and core hollow column tail portion duct is further opened on inner core tailgate, described Inner core upper end is additionally provided with inner core needle point, and needle point inner face groove is provided in inner core needle point, and the interior in-core, which offers, to be run through The core hollow column of inner core, and core hollow column and core hollow column tail portion hole link are provided on the core hollow column Multiple core hollow column side openings, also set up that there are three inner core blade structures on the core hollow column on the downside of the inner core needle point, and Every two inner cores blade structure forms groove with inner core.

Preferably, the inner core head is in sharp barb slot and propeller-like.

Preferably, the housing bore matches with inner core outer diameter, and outer sleeve upper is provided with the sharp knot of outer tube Structure is additionally provided with slope shape blade outside outer tube, in favor of cutting tissue.

Preferably, interior outer core is additionally provided with thin layer pleura, and thickness≤2mm of thin layer pleura.

The utility model proposes a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set, advantageous effect is：

（1）Operation amplitude is small, it is only necessary to which minute quantity hydrothorax, handy and safe, pain is small, thin layer pleura reaction is few；

（2）Inner core sharp cutter, groove, barb and the attached suction of negative pressure are stablized, and materials are reliable, especially for thin layer pleura group The materials knitted；

（3）The strip cutting scope of organization is big, includes thin layer pleura and thin layer pleura perienchyma sample, and effect determines.

Description of the drawings

Fig. 1 be the utility model proposes a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set structural representation Figure；

Fig. 2 be the utility model proposes the core arrangement of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set a kind of show It is intended to；

Fig. 3 be the utility model proposes a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set outer sleeve structure Schematic diagram；

Fig. 4 be the utility model proposes a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set outer tube section view Structural schematic diagram.

In figure：In 1 inner core needle point, 2 outer tube sharpened configurations, 3 inner core blade structures, 4 core hollow column side openings, 5 inner cores Void column, 6 core hollow column tail portion ducts, 7 outer tubes, 8 needle point inner face grooves, 9 inner core tailgates, 10 housing tube chambers, 11 outer tubes Tailgate.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-4, a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set, including inner core and outer tube 7, inner core Head is in sharp barb slot and propeller-like, and front end shape is pointed, to concave towards needle point be in barb slot to inner face, rear end helically paddle Shape, inner core tail portion connect with automatic negative-pressure injection tube, and interior outer core is additionally provided with thin layer pleura, and the thickness of thin layer pleura≤ 2mm。

7 bottom of outer tube is also equipped with outer tube tailgate 11, and the housing tube chamber through outer tube 7 is offered in outer tube 7 10, and inner core is plugged in housing tube chamber 10, inner core bottom is also equipped with inner core tailgate 9, and is further opened on inner core tailgate 9 interior Core hollow posts tail portion duct 6, inner core upper end are additionally provided with inner core needle point 1, and needle point inner face groove 8 is provided in inner core needle point 1, Interior in-core offers the core hollow column 5 through inner core, and core hollow column 5 is connected to core hollow column tail portion duct 6, inner core It is provided with multiple core hollow column side openings 4 in hollow posts 5, is also set up there are three on the core hollow column 5 of 1 downside of inner core needle point Core blade structure 3, and every two inner cores blade structure 3 forms groove with inner core.

7 internal diameter of outer tube matches with inner core outer diameter, and 7 upper end of outer tube is provided with outer tube sharpened configuration 2, outer tube Slope shape blade is additionally provided with outside 7, in favor of cutting tissue.

Supersonic sounding has pleural effusion person and selecting punctures target thin layer pleura, the wall of the chest successively local anaesthesia until thin layer pleura, Outer tube 7 and inner core carry out assembly and are fitted into, ultrasonic measurement wall of the chest thickness and it is expected that depth of needle；By chimeric needle set while inserting needle To the wall of the chest of estimated depth；Pushing inner core to break through thin layer pleura makes inner core needle point 1 enter in thoracic cavity a little, inner core of slightly pulling back So that needle point barb slot clamping fixed parietal layer thin layer pleura, connects vacuum injector, trigger button forms negative pressure generation and sucks thin layer Pleura and perienchyma's effect, rotate left and right inner core for several times with rotary-cut thin layer pleura and perienchyma, rotation pushes forward later Outer tube 7 cuts thin layer pleura and perienchyma in groove until at inner core needle point；Later a whole set of pipe is exited together with inner core Needle set simultaneously obtains sample.

More than, the only preferable specific implementation mode of the utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art within the technical scope disclosed by the utility model, according to the utility model Technical solution and its utility model design be subject to equivalent substitution or change, should all cover the scope of protection of the utility model it It is interior.

Claims (4)

1. a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set, including inner core and outer tube（7）, it is characterised in that：Outside Casing（7）Bottom is also equipped with outer tube tailgate（11）, the outer tube（7）It inside offers through outer tube（7）Outer tube Chamber（10）, and inner core is plugged in housing tube chamber（10）Interior, the inner core bottom is also equipped with inner core tailgate（9）, and inner core tailgate （9）On be further opened with core hollow column tail portion duct（6）, the inner core upper end is additionally provided with inner core needle point（1）, and inner core needle point （1）Inside it is provided with needle point inner face groove（8）, the interior in-core offers the core hollow column through inner core（5）, and core hollow Column（5）With core hollow column tail portion duct（6）Connection, the core hollow column（5）On be provided with multiple core hollow column side openings （4）, the inner core needle point（1）The core hollow column of downside（5）On also set up there are three inner core blade structure（3）, and in every two Core blade structure（3）Groove is formed with inner core.

2. a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set according to claim 1, which is characterized in that described Inner core head is in sharp barb slot and propeller-like.

3. a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set according to claim 1, which is characterized in that described Outer tube（7）Internal diameter matches with inner core outer diameter, and outer tube（7）Upper end is provided with outer tube sharpened configuration（2）, outer tube （7）Outside is additionally provided with slope shape blade, in favor of cutting tissue.

4. a kind of propeller-like negative pressure rotary-cut thin layer biopsy of pleura needle set according to claim 1, which is characterized in that inner core Outer wall is additionally provided with thin layer pleura, and thickness≤2mm of thin layer pleura.