CN211243483U - Cervical canal tissue sampler - Google Patents

Abstract

The utility model discloses a cervical canal tissue sampler, which comprises an inner core and an outer cylinder which are sleeved in an inner and outer sliding way, wherein the top of the front end of the outer cylinder is provided with a sampling port, the top of the front end of the sampling port is provided with a sawtooth-shaped sampling structure, the front end of the inner core is provided with a covering structure which extends forwards and is matched with the sampling structure, and after the covering structure is assembled with the sampling structure, the front end of the outer cylinder and the front end of the covering structure of the inner core jointly form an outer convex and smooth head; the handle is arranged at the rear end of the outer barrel, the guide structure extending along the axial direction of the outer barrel is arranged on one side of the handle, the positioning structure is arranged at the rear end of the inner core, the positioning structure is in sliding fit with the guide structure, the positioning structure is pushed to move back and forth in the guide structure, and therefore the inner core is driven to move back and forth in the outer barrel, and the matching or the separation between the covering structure of the inner core and the sampling structure of the outer barrel is achieved. Compared with the prior art, the utility model has the following advantages: can carry out efficient and safe sampling of the tissue of the cervical canal.

Description

Cervical canal tissue sampler

Technical Field

The utility model relates to a medical appliance, in particular to a cervical canal tissue sampler.

Background

Patients suspected of female cervical canal lesions require pathology analysis by biopsy sampling. However, the tissue of the cervical canal is compact and tough, and a larger tissue block is difficult to obtain, especially for women with large age and postmenopausal women, and the missed diagnosis rate is high. If the curette is too deep, it will enter the uterine cavity, causing endometrial disturbance. And the curette is easy to scratch the vaginal wall when extending into the vagina. Although some cervical canal biopsy devices exist in the prior art, all of them have defects, for example, in patent application with publication number CN207444970U, the sampling end of the biopsy device is provided with a barb, which is easy to scratch and difficult to enter the vagina or cervix of a patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a high-efficiency and safe cervical canal tissue sampler.

The utility model discloses a realize through following technical scheme:

a cervical canal tissue sampler comprises an inner core and an outer cylinder which are sleeved in an inner-outer sliding manner, wherein a sampling opening is formed in the top of the front end of the outer cylinder, a sampling structure is arranged on the top of the front end of the sampling opening, a covering structure which extends forwards and is matched with the sampling structure is arranged at the front end of the inner core, and after the covering structure and the sampling structure are assembled, the front end of the outer cylinder and the front end of the covering structure of the inner core form an outward-protruding and smooth head together; the outer barrel is characterized in that a handle is arranged at the rear end of the outer barrel, a guide structure extending along the axial direction of the outer barrel is arranged on one side of the handle, a positioning structure is arranged at the rear end of the inner core, the positioning structure is in sliding fit with the guide structure, and the positioning structure is pushed to move back and forth in the guide structure, so that the inner core is driven to move back and forth in the outer barrel, and the matching or the separation between the covering structure of the inner core and the sampling structure of the outer barrel is realized.

Furthermore, the sampling structure is a sampling tooth, the covering structure is a covering piece, and the front end of the covering piece is provided with a covering tooth meshed with the sampling tooth.

Furthermore, the positioning structure is a sliding block, and the guide structure is a guide sliding groove which is positioned on one side of the handle and extends along the axial direction of the handle.

Further, the slider outer end stretches out outside the direction spout of handle and is equipped with a limiting plate, the width of limiting plate is greater than the width of direction spout, the rear end of limiting plate is equipped with a fixture block that can overturn, the fixture block upper end is articulated with the limiting plate through the articulated shaft, two draw-in grooves of arranging around being equipped with on the handle, the extending direction of draw-in groove is mutually perpendicular with the extending direction of direction spout, the cross section of draw-in groove is the arc, the one end that the articulated shaft was kept away from to the fixture block is the work end of evagination, through the upset the fixture block is with the work end embedding draw-in groove of fixture block, realizes the location of inner core extreme position or back extreme.

Furthermore, convex operating rods are arranged on two sides of the clamping block.

Further, the head is a hemispherical head.

Furthermore, the bottom of the handle is provided with an anti-skid structure.

Furthermore, the front section of the outer barrel is provided with scale marks.

Compared with the prior art, the utility model has the following advantages:

the utility model provides a cervical canal tissue sampler, which is provided with an inner core and an outer cylinder which are in sliding fit, and the inner core slides back and forth in the outer cylinder, thereby realizing the meshing or separation between the cover teeth of the inner core and the sampling teeth of the outer cylinder; when the sampling head is meshed, a smooth head is formed at the front end, so that the vaginal wall or the cervical wall of a patient cannot be scratched in the process of extending into or out of the cervical canal, the safety is high, the sampling head can smoothly enter the cervical canal, and the smooth sampling work is ensured; the sample connection of urceolus front end is opened when breaking away from, and the sample tooth exposes the sample of being convenient for, and the sample that the sample dropped can keep in the inner chamber of the sample connection below of urceolus. The whole sampler has simple structure, low manufacturing cost and convenient and fast operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is an enlarged view of fig. 1 at B.

Fig. 4 is a perspective view of the inner core of the present invention.

Fig. 5 is a perspective view of the outer tube of the present invention.

Fig. 6 is a schematic structural view of the assembly of the fixture block and the clamping groove of the present invention.

Reference numbers in the figures: 1 inner core, 2 urceolus, 3 sample mouths, 4 sample teeth, 5 lid close the piece, 6 lid close the tooth, 7 heads, 8 handles, 9 antiskid groove, 10 direction spouts, 11 sliders, 12 limiting plates, 13 fixture blocks, 14 action bars, 15 articulated shafts, 16 draw-in grooves.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Referring to fig. 1 to 6, the present embodiment discloses a cervical canal tissue sampler, which includes an inner core 1 and an outer cylinder 2 that are slidably sleeved inside and outside, a scale mark is arranged on a front section of the outer cylinder 2, a sampling port 3 is arranged on a top of a front end of the outer cylinder 2, a sampling structure is arranged on a top of a front end of the sampling port 3, the sampling structure is a sampling tooth 4, a covering structure that extends forward is arranged on a front end of the inner core 1, the covering structure is a covering sheet 5, a covering tooth 6 that is engaged with the sampling tooth 4 is arranged on a front end of the covering sheet 5, after the covering tooth 6 is engaged with the sampling tooth 4, a head 7 that protrudes outward and is smooth is formed by the front end of the outer cylinder 2 and the front end of the covering sheet 5 of the inner core 1, and the head 7 is a hemispherical head 7 in; the rear end of the outer barrel 2 is provided with a handle 8, and the bottom of the handle 8 is provided with an anti-slip groove 9 as an anti-slip structure, so that the outer barrel is convenient to hold. Handle 8 one side is opened there is the guide structure along the axial extension of urceolus 2, and guide structure is direction spout 10, and inner core 1 rear end is equipped with location structure, and location structure is slider 11, and slider 11 and direction spout 10 sliding fit are through promoting slider 11 and back-and-forth movement in direction spout 10 to drive inner core 1 back-and-forth movement in urceolus 2, in order to realize the lid of inner core 1 and close the meshing or the breaking away from between tooth 6 and the sample tooth 4 of urceolus 2.

The outer end of the sliding block 11 extends out of the guide sliding groove 10 of the handle 8 and is provided with a limiting plate 12, the width of the limiting plate 12 is larger than that of the guide sliding groove 10, the rear end of the limiting plate 12 is provided with a clamping block 13 capable of overturning, two sides of the clamping block 13 are provided with convex operating rods 14, and the whole clamping block 13 is driven to overturn by pulling the operating rods 14. The upper end of the clamping block 13 is hinged to the limiting plate 12 through a hinge shaft 15, the handle 8 is provided with two clamping grooves 16 which are arranged in the front and back direction, the extending direction of the clamping grooves 16 is perpendicular to the extending direction of the guide sliding groove 10, the cross section of each clamping groove 16 is arc-shaped, one end, far away from the hinge shaft 15, of the clamping block 13 is an outward protruding working end, the working end of the clamping block 13 is embedded into the clamping groove 16 through overturning the clamping block 13, and the positioning of the inner core 1 at the front limit position or the rear limit.

Wherein, the height of the sampling tooth 4 in the vertical direction is 0.5mm, the axial length of the covering sheet 5 is 20mm, the axial length of the outer cylinder 2 is 180mm, the outer diameter of the front section of the outer cylinder 2 is 4mm, and the inner diameter is 3.8 mm; the axial length of the handle 8 is 100 mm.

The working process of the sampler provided by the embodiment is as follows:

before stretching into the vagina with the sampler, with inner core 1 forward slide to preceding extreme position to turning over fixture block 13 downwards, make in fixture block 13 bottom embedding to the draw-in groove 16 that is located the place ahead, realize the location to inner core 1, the lid of inner core 1 closes between tooth 6 and the sample tooth 4 of urceolus 2 and just in time meshes mutually at this moment, the head 7 of sampler is sleek design after the meshing, prevents that the sampler from getting into the cervical canal difficulty, and can effectively avoid fish tail vagina wall or cervical wall. When the sampler has reached the sampling position, upwards pull out fixture block 13 backward, make fixture block 13 break away from draw-in groove 16, then slide inner core 1 backward to back extreme position, imbed fixture block 13 this moment to being located the draw-in groove 16 at rear in, sample tooth 4 and sample connection 3 expose this moment, can carry out conventional sample, and the sample that drops can keep in the inner chamber of the sample connection 3 below of urceolus 2. After the sample is accomplished, can slide inner core 1 forward to preceding extreme position once more and fix a position inner core 1, then take out the sampler, accomplish the sample of sample promptly, whole operation process is simple, convenient, swift and the security is high.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A cervical canal tissue sampler is characterized in that: the sampling device comprises an inner core and an outer cylinder which are sleeved in an inner-outer sliding manner, wherein a sampling opening is formed in the top of the front end of the outer cylinder, a sampling structure is arranged on the top of the front end of the sampling opening, a covering structure which extends forwards and is matched with the sampling structure is arranged at the front end of the inner core, and after the covering structure and the sampling structure are assembled, the front end of the outer cylinder and the front end of the covering structure of the inner core form a convex and smooth head together; the outer barrel is characterized in that a handle is arranged at the rear end of the outer barrel, a guide structure extending along the axial direction of the outer barrel is arranged on one side of the handle, a positioning structure is arranged at the rear end of the inner core, the positioning structure is in sliding fit with the guide structure, and the positioning structure is pushed to move back and forth in the guide structure, so that the inner core is driven to move back and forth in the outer barrel, and the matching or the separation between the covering structure of the inner core and the sampling structure of the outer barrel is realized.

2. A cervical tissue sampler as claimed in claim 1, wherein: the sampling structure is sampling teeth, the covering structure is a covering piece, and the front end of the covering piece is provided with covering teeth meshed with the sampling teeth.

3. A cervical tissue sampler as claimed in claim 1, wherein: the positioning structure is a sliding block, and the guide structure is a guide sliding groove which is positioned on one side of the handle and extends along the axial direction of the handle.

4. A cervical tissue sampler as claimed in claim 3, wherein: the utility model discloses a handle, including the handle, the slider outer end stretches out outside the direction spout of handle and is equipped with a limiting plate, the width of limiting plate is greater than the width of direction spout, the rear end of limiting plate is equipped with a fixture block that can overturn, the fixture block upper end is articulated with the limiting plate through the articulated shaft, be equipped with two draw-in grooves of arranging around the handle, the extending direction of draw-in groove is mutually perpendicular with the extending direction of direction spout, the cross section of draw-in groove is the arc, the fixture block is kept away from the one end of articulated shaft and is the work end of evagination, through the upset the fixture block is with.

5. A cervical tissue sampler as claimed in claim 4, wherein: and convex operating rods are arranged on two sides of the clamping block.

6. A cervical tissue sampler as claimed in claim 1, wherein: the head is a hemispherical head.

7. A cervical tissue sampler as claimed in claim 1, wherein: the bottom of the handle is provided with an anti-skid structure.

8. A cervical tissue sampler as claimed in claim 1, wherein: the front section of the outer barrel is provided with scale marks.

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