CN212755735U

CN212755735U - Puncture outfit for cytopathology examination

Info

Publication number: CN212755735U
Application number: CN202020819796.4U
Authority: CN
Inventors: 唐群; 吴华; 朱伟; 刘春燕; 罗琳; 佘颜; 易纯; 卜兰兰; 黄娟
Original assignee: Hunan University of Chinese Medicine
Current assignee: Hunan University of Chinese Medicine
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-23
Anticipated expiration: 2030-05-15

Abstract

The utility model provides a puncture outfit for cytopathology examination, which comprises a needle cylinder, wherein a rubber plug is arranged in the needle cylinder, the rubber plug is connected with one end of a piston rod, the piston rod drives the rubber plug to reciprocate along the inner wall of the needle cylinder, a needle seat is arranged on the needle cylinder, a puncture needle is arranged on the needle seat, a sampling hole is arranged on the side wall of the puncture needle, a cutting knife is arranged in the puncture needle, one end of the cutting knife is provided with a rotating seat, a groove is arranged on the rotating seat, a driving block is arranged on the piston rod, the driving block is matched with the groove, the central axes of the needle cylinder, the rubber plug, the piston rod, the driving block, the puncture needle and the rotating seat; the utility model provides a puncture ware for cytopathology inspection rational in infrastructure, convenient to use, tissue sampling are accurate, the success rate is high, can promote work efficiency by a wide margin, ensure the cytopathology diagnosis rate of accuracy.

Description

Puncture outfit for cytopathology examination

Technical Field

The utility model belongs to the technical field of medical instrument, specifically relate to a cell pathology inspection is with puncture ware.

Background

At present, most of hospital pathology departments in China adopt a freehand traction injector puncture method to finish the collection of a needle suction sample, and after a puncture needle is punctured into tissues, a small amount of tissue samples or interstitial liquid is obtained to diagnose by utilizing the principle of negative pressure suction of an injector, so that the existing puncture outfit has the following problems:

1. because the living tissue has tissue toughness, the needle point of the puncture needle is a bevel blade, the tissue can not be effectively cut, the tissue sample is difficult to suck out, or the obtained liquid between the tissues can not be pathologically diagnosed, and the defects of high puncture failure rate and low diagnosis accuracy rate caused by incomplete sample tissues exist;

2. the sampling and puncturing depths of specimens of different individuals and different parts are different, the puncturing depth is difficult to control effectively during sampling, pathological cells can be collected by multiple operations, and the labor intensity of medical workers is greatly increased;

3. the puncture outfit does not have hemostasis structure, and the pjncture needle is when puncturing, and blood overflows and can influence the field of vision of puncture, reduces the accuracy of sample.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a pathology inspection cell puncture ware that rational in infrastructure, convenient to use, tissue sampling are accurate, the success rate is high.

In order to achieve the purpose, the technical scheme of the utility model as follows, a puncture outfit for cytopathology inspection, including the cylinder, be equipped with the plug in the cylinder, the plug is connected with the one end of piston rod, the piston rod drives the inner wall reciprocating motion of plug along the cylinder, be equipped with the needle file on the cylinder, be equipped with the pjncture needle on the needle file, be equipped with the thief hole on the lateral wall of pjncture needle, be equipped with the cutting knife in the pjncture needle, the one end of cutting knife is equipped with rotates the seat, be equipped with the recess on rotating the seat, be equipped with the drive block on the piston rod, drive block and recess adaptation, cylinder, plug, piston rod, drive block, pjncture needle, the coincidence of the central.

Preferably, the groove is arranged on the central axis of the rotating seat.

Preferably, the cross section of the groove is a regular polygon.

Preferably, the outer side wall of the puncture needle is provided with scale marks.

Preferably, the puncture outfit further comprises a supporting sleeve, wherein the supporting sleeve is sleeved on the needle cylinder and is connected with the needle cylinder through threads.

Preferably, the supporting sleeve is provided with a bell mouth.

Preferably, a sealing belt is arranged on the port of the bell mouth.

Preferably, the inner wall of the horn mouth is provided with a medical sponge.

Preferably, the open end of the needle cylinder is provided with a handle, the handle is provided with a shaft pin, the shaft pin is provided with a buckle, the buckle is hinged with the handle through the shaft pin, the piston rod is provided with a plurality of clamping grooves, and the clamping grooves are matched with the buckle.

Preferably, the number of the sampling holes is a positive integer.

The utility model has the advantages that,

1. when the puncture needle is used, the piston rod is pressed to the bottom, air in the needle cylinder is discharged, the driving block penetrates through the needle seat and is connected with the groove, the puncture needle is punctured into a sampling part, tissues enter an inner cavity of the puncture needle from the sampling hole, the piston rod is rotated, the driving block drives the cutting knife to rotate along the inner wall of the puncture needle through the rotating seat, when the cutting knife meets the inner side wall of the sampling hole, the cutting knife cuts off tiny tissue blocks of a side needle hole of the convex end, the sampling hole is sealed, and the piston rod is pulled backwards, so that the tissue blocks can be sucked into the needle cylinder; the method is convenient and quick to operate, can obtain a small amount of solid tissues meeting the requirements of pathological diagnosis, can absorb liquid between tissues, is accurate in sampling and high in success rate, can improve the working efficiency, and ensures the accuracy of cytopathology diagnosis.

2. The length that the pjncture needle stretches out is adjusted through the support sleeve, can realize the regulation of pjncture needle sample depth, and medical personnel only need insert the pathological structure with the part of the support sleeve that stretches out of pjncture needle in, just can accomplish pathological cell's collection, promote the accurate nature and the success rate that pathological cell collected by a wide margin.

3. The sealing strip for supporting the end port of the sleeve can increase the sealing performance of the puncture part, effectively prevent the blood from overflowing during puncture, and when the blood overflows carelessly, the medical sponge can absorb the overflowing blood in time, so that a good visual field is provided for puncture.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the embodiment shown in FIG. 1;

FIG. 3 is a schematic view of the syringe shown in FIG. 1;

FIG. 4 is a schematic view of the piston rod shown in FIG. 1;

FIG. 5 is a schematic view of the structure of the needle of FIG. 1;

FIG. 6 is a schematic view of the cutting blade shown in FIG. 1;

FIG. 7 is a schematic structural diagram of the driving block shown in FIG. 1;

FIG. 8 is a schematic structural diagram of another implementation of a circular drive block;

FIG. 9 is a schematic structural diagram of a triangular driving block;

FIG. 10 is a schematic diagram of a square drive block;

fig. 11 is a schematic structural diagram of another embodiment of the present invention;

fig. 12 is a schematic structural diagram of the embodiment shown in fig. 11.

In the figure, 1-syringe, 11-needle seat, 12-handle, 13-shaft pin, 14-buckle, 2-rubber plug, 3-piston rod, 31-driving block, 32-clamping groove, 4-puncture needle, 41-sampling hole, 42-cutting knife, 43-rotating seat, 44-groove, 5-supporting sleeve and 51-bell mouth.

Detailed Description

The technical scheme of the utility model is further described in detail with reference to the accompanying drawings and specific embodiments:

referring to fig. 1 to 10 together, the puncture outfit for cytopathology test provided in this embodiment includes a needle cylinder 1, the syringe 1 is internally provided with a rubber plug 2, the rubber plug 2 is connected with one end of a piston rod 3, the piston rod 3 drives the rubber plug 2 to reciprocate along the inner wall of the syringe 1, a needle seat 11 is arranged on the needle cylinder 1, a puncture needle 4 is arranged on the needle seat 11, a sampling hole 41 is arranged on the side wall of the puncture needle 4, a cutting knife 42 is arranged in the puncture needle 4, one end of the cutting knife 42 is provided with a rotating seat 43, a groove 44 is arranged on the rotating seat 43, a driving block 31 is arranged on the piston rod 3, the driving block 31 is matched with the groove 44, the central axes of the needle cylinder 1, the rubber plug 2, the piston rod 3, the driving block 31, the puncture needle 4 and the rotating seat 43 are superposed, the piston rod 3 drives the cutting knife 42 to rotate along the side wall of the puncture needle 4 through the driving block 31.

As shown in fig. 7, the grooves 44 are uniformly distributed on the rotating base 43, the axis of the rotating base 43 is provided with vent holes, the driving block 31 is a cylinder, the driving block 31 is provided with protrusions adapted to the grooves 44, when the piston rod 3 presses the bottom of the syringe 1, the protrusions on the driving block 31 are clamped into the grooves 44, the rotating piston rod 3 can drive the rotating base 43 to rotate through the driving block 31, that is, the cutting knife 42 rotates along the sidewall of the puncture needle 4.

As shown in fig. 8, the rotary seat 43 may not be provided with a vent hole, and the groove 44 penetrates through two ends of the rotary seat 43, and the groove 44 can clamp the driving block 31 and can also be used as a vent hole.

When the needle is used, the piston rod 3 is pressed to the bottom, the air in the needle cylinder 1 is discharged, the driving block 31 penetrates through the needle seat 11 and is connected with the groove 44, the puncture needle 4 is punctured into a sampling part, tissues enter an inner cavity of the puncture needle 4 from the sampling hole 41, the piston rod 3 is rotated, the driving block 31 drives the cutting knife 42 to rotate along the inner wall of the puncture needle 4 through the rotating seat 43, when the cutting knife 42 meets the inner side wall of the sampling hole 41, a 'guillotine' effect is formed, small tissue blocks protruding into the sampling hole 41 are cut off gradually, the sampling hole 41 is sealed, the piston rod 3 is pulled backwards, and the tissue blocks can be sucked into the needle cylinder 1; one end of the driving block 31 is connected with the piston rod 3, and the other end firstly penetrates through the rubber plug 2 to fix the rubber plug 2, so that the air tightness between the rubber plug 2 and the side wall of the needle cylinder 1 is ensured; then pass needle file 11 and be connected with rotating seat 43, the rotating piston rod 3 can drive cutting knife 42 and rotate, rational in infrastructure, convenient operation is swift, and the tissue sample is accurate and the success rate is high, can promote work efficiency, ensures the cytopathology diagnosis rate of accuracy.

As shown in fig. 9, the groove 44 is disposed on the central axis of the rotating seat 43 and penetrates through two ends of the rotating seat 43, the cross section of the groove 44 is a regular triangle, and correspondingly, the cross section of the driving block 31 is also a regular triangle, the driving block 31 extends into the groove 44 and can drive the rotating seat 43 to rotate, the driving block 31 can be drawn out from the groove 44 and can use the groove 44 as a vent hole, so that the structure is more compact; the cross section of the groove 44 can also be square (as shown in fig. 10), regular pentagon or regular hexagon, and the cross section of the driving block 31 can be adjusted accordingly.

Be equipped with the scale mark on the lateral wall of pjncture needle 4, during the sample, can judge the sample depth according to the scale on pjncture needle 4, it is directly perceived convenient.

The open end of the needle cylinder 1 is provided with a handle 12, the handle 12 is provided with a shaft pin 13, the shaft pin 13 is provided with a buckle 14, the buckle 14 is hinged with the handle 12 through the shaft pin 13, the piston rod 3 is provided with a plurality of clamping grooves 32, the clamping grooves 32 are matched with the buckle 14, after the piston rod 3 is rotated to complete tissue cutting, the piston rod 3 is pulled backwards by hands, so that negative pressure is formed in the needle cylinder 1 to absorb tissues in the puncture needle 4, the buckle 14 is rotated to enable the buckle 14 to enter the clamping grooves 32, the piston rod 3 can not move back and forth, and medical staff does not need to worry about that the tissues or tissue fluid are sprayed out due to mistakenly touching the.

In the embodiment, there is one sampling hole 41, and the number of the sampling holes 41 may be two, three, four or more according to the requirement of tissue sampling.

Example two

Referring to fig. 11 and 12, the technical solution provided by the present embodiment is substantially the same as the first embodiment, except that: the puncture outfit also comprises a supporting sleeve 5, wherein the supporting sleeve 5 is sleeved on the needle cylinder 1 and is connected with the needle cylinder through threads; the supporting sleeve 5 is rotated, the length of the puncture needle 4 extending out of the edge of the supporting sleeve 5 can be adjusted, so that the puncture sampling depth of time adjustment is realized, a bell mouth 51 is arranged on the supporting sleeve 5, a sealing strip is arranged on the port of the bell mouth 51, and medical sponge is arranged on the inner wall of the bell mouth 51; when in puncture, the supporting sleeve 5 is rotated, the sampling depth is adjusted according to the scale marks on the puncture needle 4, medical personnel align the puncture needle 4 with the puncture part of a patient, when the puncture needle 4 reaches the preset depth, the horn mouth 51 is propped against the puncture part to provide stable support for the rotary piston rod 3, and the medical personnel can concentrate on cutting sampling without worrying about whether the puncture depth is accurate, so that the working efficiency is improved; the sealing strip on the port of the horn mouth 51 can increase the sealing performance of the puncture part, effectively prevent the blood from overflowing during puncture, and when the blood accidentally overflows, the medical sponge can timely absorb the overflowed blood, so that a good visual field is provided for puncture.

The above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a puncture ware for cytopathology inspection, includes cylinder (1), be equipped with plug (2) in cylinder (1), plug (2) are connected with the one end of piston rod (3), piston rod (3) drive plug (2) along the inner wall reciprocating motion of cylinder (1), its characterized in that: be equipped with needle file (11) on cylinder (1), be equipped with pjncture needle (4) on needle file (11), be equipped with thief hole (41) on the lateral wall of pjncture needle (4), be equipped with cutting knife (42) in pjncture needle (4), the one end of cutting knife (42) is equipped with rotates seat (43), be equipped with recess (44) on rotating seat (43), be equipped with driving block (31) on piston rod (3), driving block (31) and recess (44) adaptation, the central axis coincidence of cylinder (1), plug (2), piston rod (3), driving block (31), pjncture needle (4), rotation seat (43), piston rod (3) drive cutting knife (42) through driving block (31) and rotate along the lateral wall of pjncture needle (4).

2. The puncture instrument for cytopathology examination as set forth in claim 1, wherein: the groove (44) is arranged on the central axis of the rotating seat (43).

3. The puncture instrument for cytopathology examination as set forth in claim 2, wherein: the cross section of the groove (44) is a regular polygon.

4. A puncture instrument for cytopathology examination as set forth in any one of claims 1 to 3, wherein: the outer side wall of the puncture needle (4) is provided with scale marks.

5. The puncture instrument for cytopathology examination as set forth in claim 4, wherein: the needle cylinder is characterized by further comprising a supporting sleeve (5), wherein the supporting sleeve (5) is sleeved on the needle cylinder (1) and is connected with the needle cylinder through threads.

6. The puncture instrument for cytopathology examination as set forth in claim 5, wherein: and a bell mouth (51) is arranged on the supporting sleeve (5).

7. The puncture instrument for cytopathology examination as set forth in claim 6, wherein: and a sealing belt is arranged on the port of the bell mouth (51).

8. The puncture instrument for cytopathology examination as set forth in claim 6, wherein: the inner wall of the bell mouth (51) is provided with medical sponge.

9. The puncture instrument for cytopathology examination as set forth in claim 1, 2, 3, 5, 6, 7, or 8, wherein: the open end of needle cylinder (1) is equipped with handle (12), be equipped with pivot (13) on handle (12), be equipped with buckle (14) on pivot (13), buckle (14) are articulated with handle (12) through pivot (13), be equipped with a plurality of draw-in grooves (32) on piston rod (3), draw-in groove (32) and buckle (14) adaptation.

10. The puncture instrument for cytopathology examination as set forth in claim 9, wherein: the number of the sampling holes (41) is a positive integer.