CN215306155U - Two-piece skin biopsy sampler - Google Patents
Two-piece skin biopsy sampler Download PDFInfo
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- CN215306155U CN215306155U CN202121201619.0U CN202121201619U CN215306155U CN 215306155 U CN215306155 U CN 215306155U CN 202121201619 U CN202121201619 U CN 202121201619U CN 215306155 U CN215306155 U CN 215306155U
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- blade
- sampler
- threaded column
- sampling
- knob
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Abstract
The utility model belongs to the technical field of medical instruments, and particularly relates to a two-piece type skin biopsy sampler. The utility model comprises a sampler main body, wherein a threaded column capable of reciprocating along a straight line is arranged in the sampler main body, a blade sleeve platform is arranged on the sampler main body, a split type biopsy cutter assembly is arranged on the threaded column, the split type biopsy cutter assembly is in sliding fit with the blade sleeve platform, and a rotatable circumferential screw joint driving piece is arranged on the sampler main body. When the split type biopsy cutter assembly is used, the circumferential screw joint driving piece is rotated, the screw joint matching between the circumferential screw joint driving piece and the screw thread column drives the screw thread column and the split type biopsy cutter assembly to move axially outwards, the split type biopsy cutter assembly forms two mutually abutted blades after moving outwards to perform cutting sampling, and in the sampling process, the blades are contacted with the skin, so that an incision with a large outer opening and a small inner opening is formed, the suture and recovery are easy, and the practicability is strong.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and relates to a two-piece skin biopsy sampler.
Background
The skin sampler is also called a skin trephine sampler, a round living body skin sampler and the like, is widely applied to sampling of skin tissues of animals or human bodies, and the existing skin sampler is easy to form irregular incisions in the using process, is not beneficial to suture and recovery and has relatively general practicability.
In order to overcome the deficiencies of the prior art, various solutions have been proposed through continuous exploration, for example, chinese patent discloses a medical skin sampler [ application No.: 201620125825.0] is equipped with scraper, knife sheath and sampling box, and its characterized in that scraper is fixed on the knife sheath, and the cutting edge of scraper is the cusp, and one side of knife sheath is equipped with the recess, and sampling box one side is equipped with the convex strip, and the convex strip can coincide with the recess and be connected, and the one side cutting edge of the sample connection correspondence scraper of sampling box, the opposite side of sampling box are equipped with protrudingly, the terminal installation handle of knife sheath, the antiskid cover of installation on the handle. The utility model has simple structure and convenient operation, can easily complete the sampling work and can not damage the skin. However, the blade is still easy to form irregular incisions in the using process of the scheme, which is not beneficial to stitching and recovery and has the defect of relatively general practicability.
Disclosure of Invention
The utility model aims to solve the problems and provides a two-piece skin biopsy sampler.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a two formula skin biopsy samplers, includes the sampler main part, the sampler main part in be equipped with the screw thread post that can follow straight reciprocating motion, the sampler main part on be equipped with blade cover platform, the screw thread post on be equipped with a burst formula biopsy cutter subassembly, burst formula biopsy cutter subassembly and blade cover platform looks sliding fit, the sampler main part on be equipped with rotatable circumference spiro union driving piece, circumference spiro union driving piece and screw thread post looks spiro union cooperation.
In the above two-piece skin biopsy sampler, the split biopsy cutter assembly includes two sampling blades disposed on the threaded post, and the sampling blades are in sliding fit with the inner wall of the blade sleeve platform.
In foretell two formula skin biopsy samplers, the sample blade be the slope setting, the sample blade be close to blade cover platform one end and be equipped with the spacing portion of blade, the spacing portion of blade and blade cover platform looks sliding fit.
In the two-piece skin biopsy sampler, the blade limiting part comprises a sliding block arranged on the sampling blade, a plurality of dovetail grooves symmetrical along the central line of the blade sleeve platform are arranged in the blade sleeve platform, and the sliding block is in sliding fit with the dovetail grooves.
In the two-piece skin biopsy sampler, the sampling blade is connected with the threaded column through the connecting rod, one end of the connecting rod is hinged with the sampling blade, and the other end of the connecting rod is hinged with the threaded column.
In foretell two formula skin biopsy samplers, circumference spiro union driving piece including setting up the knob in the sampler main part, the knob in be equipped with the internal thread, the screw thread post on be equipped with the external screw thread, the external screw thread of screw thread post and the internal thread looks spiro union cooperation of knob.
In the two-piece skin biopsy sampler, the knob is provided with an axial limiting part, and the axial limiting part is in sliding fit with the sampler main body.
In the above two-piece skin biopsy sampler, the axial limiting portion includes a knob axial limiting ring disposed on the knob, and the knob axial limiting ring is in sliding fit with the sampler main body.
In foretell two formula skin biopsy samplers, the sampler main part in be equipped with the spacing portion of circumference, the spacing portion of circumference extend and let in to the screw thread post in, screw thread post and the spacing portion sliding fit of circumference.
In foretell two formula skin biopsy samplers, the spacing portion of circumference including set up the circumference gag lever post in the sampler main part, the circumference gag lever post extend and let in to the screw thread post in and screw thread post and circumference gag lever post looks sliding fit.
Compared with the prior art, the utility model has the advantages that:
1. when the split type biopsy cutter assembly is used, the circumferential screw joint driving piece is rotated, the screw joint matching between the circumferential screw joint driving piece and the screw thread column drives the screw thread column and the split type biopsy cutter assembly to move axially outwards, the split type biopsy cutter assembly forms two mutually abutted blades after moving outwards to perform cutting sampling, and in the sampling process, the blades are contacted with the skin, so that an incision with a large outer opening and a small inner opening is formed, the suture and recovery are easy, and the practicability is strong.
2. In the axial moving process of the threaded column, the circumferential limiting rod is in sliding fit with the threaded column, so that the threaded column can only axially move and cannot circumferentially rotate, and the circumferential limiting rod is formed by integrally molding the strip-shaped convex block and the polished rod, so that the threaded column can only axially move and cannot circumferentially rotate.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic cross-sectional view of another state of use of the present invention.
Fig. 3 is a schematic cross-sectional view of a threaded post.
FIG. 4 is a schematic structural view of a segmented biopsy cutter assembly.
In the figure: sampler main part 1, screw thread post 2, blade cover platform 3, burst formula biopsy cutter subassembly 4, circumference spiro union driving piece 5, sample blade 6, blade spacing portion 7, slider 8, dovetail 9, connecting rod 10, knob 11, spacing portion 12 of axial, knob axial spacing ring 13, spacing portion 14 of circumference, circumference gag lever post 15.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a two formula skin biopsy samplers, includes sampler main part 1, sampler main part 1 in be equipped with can follow straight reciprocating motion's screw thread post 2, sampler main part 1 on be equipped with blade cover platform 3, screw thread post 2 on be equipped with burst formula biopsy cutter subassembly 4, burst formula biopsy cutter subassembly 4 and blade cover platform 3 looks sliding fit, sampler main part 1 on be equipped with rotatable circumference spiro union driving piece 5, circumference spiro union driving piece 5 and screw thread post 2 looks spiro union cooperation.
In this embodiment, when using, rotate circumference spiro union driving piece 5, through the spiro union cooperation between circumference spiro union driving piece 5 and the screw thread post 2, drive screw thread post 2 and the outside axial displacement of burst formula biopsy cutter subassembly 4, the biplate blade that forms mutual butt after burst formula biopsy cutter subassembly 4 moves outward cuts the sampling, in the sampling process, through blade and skin contact to form the big little incision of interior mouthful of a big outer mouthful, easily sew up and resume, the practicality is stronger.
Referring to fig. 1, 2 and 4, the segmented biopsy knife assembly 4 includes two sampling blades 6 disposed on the threaded post 2, and the sampling blades 6 are slidably engaged with the inner wall of the blade sleeve 3.
Specifically, when in use, the threaded column 2 is moved, and the two sampling blades 6 are driven by the threaded column 2 to extend outwards, so that the two sampling blades 6 are abutted to form a circular notch, and the resistance is reduced during rotary excision.
Referring to fig. 1 and 2, the sampling blade 6 is obliquely arranged, a blade limiting portion 7 is arranged at one end of the sampling blade 6 close to the blade sleeve table 3, and the blade limiting portion 7 is in sliding fit with the blade sleeve table 3.
In this embodiment, sample blade 6 is the slope setting for form the incision that the big internal orifice of a foreign mouthful is little in the cutting process, easily sew up and resume, the practicality is stronger, and spacing portion 7 of blade plays spacing effect to sample blade 6, avoids sample blade 6 to take place the angular migration at the removal in-process, has improved the accuracy of the displacement of sample blade 6.
The blade limiting part 7 comprises a sliding block 8 arranged on the sampling blade 6, a plurality of dovetail grooves 9 symmetrical along the central line of the blade sleeve platform 3 are arranged in the blade sleeve platform 3, and the sliding block 8 is in sliding fit with the dovetail grooves 9.
In this embodiment, in the moving process of the sampling blade 6, through the sliding fit between the sliding block 8 and the dovetail groove 9, the sampling blade 6 can be prevented from generating angular deviation in the moving process, the accuracy of the displacement of the sampling blade 6 is improved, and the limiting effect is achieved.
Referring to fig. 1, the sampling blade 6 is connected to the threaded column 2 through a connecting rod 10, one end of the connecting rod 10 is hinged to the sampling blade 6, and the other end is hinged to the threaded column 2.
In this embodiment, during the axial movement of the threaded column 2, the threaded column 2 pushes the sampling blade 6 in and out through the hinged connecting rod 10.
Circumference spiro union driving piece 5 including setting up knob 11 on sampler main part 1, knob 11 in be equipped with the internal thread, screw thread post 2 on be equipped with the external screw thread, screw thread post 2 the external screw thread of internal thread looks spiro union cooperation with knob 11.
In this embodiment, when the threaded column 2 needs to be moved axially, the knob 11 is rotated, and the threaded column 2 is driven to move axially through the threaded matching between the external thread of the threaded column 2 and the internal thread of the knob 11.
The knob 11 is provided with an axial limiting part 12, and the axial limiting part 12 is in sliding fit with the sampler main body 1.
In this embodiment, in the rotation process of the knob 11, the knob 11 is axially limited by the sliding fit between the axial limiting part 12 and the sampler main body 1, so that the knob 11 cannot axially move but only circumferentially rotates.
Referring to fig. 2, the axial limiting portion 12 includes a knob axial limiting ring 13 disposed on the knob 11, and the knob axial limiting ring 13 is in sliding fit with the sampler body 1.
In this embodiment, in the rotation process of the knob 11, the knob 11 is axially limited by the sliding fit between the knob axial limiting ring 13 and the sampler main body 1, so that the knob 11 cannot axially move but only circumferentially rotates.
Referring to fig. 1 and 2, a circumferential limiting part 14 is arranged in the sampler main body 1, the circumferential limiting part 14 extends into the threaded column 2, and the threaded column 2 is in sliding fit with the circumferential limiting part 14.
In this embodiment, in the axial displacement process of the threaded column 2, the threaded column 2 can only move axially through the sliding fit between the circumferential limiting part 14 and the threaded column 2, and cannot rotate circumferentially.
Referring to fig. 1, the circumferential limiting part 14 includes a circumferential limiting rod 15 disposed in the sampler main body 1, the circumferential limiting rod 15 extends into the threaded column 2, and the threaded column 2 is in sliding fit with the circumferential limiting rod 15.
In this embodiment, in 2 axial displacement processes of screw thread post, through the sliding fit between circumference gag lever post 15 and the screw thread post 2 for 2 axial displacement can only be carried out to the screw thread post, can't carry out circumferential direction, and circumference gag lever post 15 comprises bar lug and polished rod integrated into one piece, further ensures that 2 axial displacement can only be carried out to the screw thread post, can't carry out circumferential direction.
The working principle of the utility model is as follows:
when in use, the two sampling blades 6 are firstly used for abutting against the skin and are forcibly rotated to form a larger incision, then the knob 11 is rotated, the threaded column 2 is driven to axially move through the threaded matching between the external thread of the threaded column 2 and the internal thread of the knob 11, the threaded column 2 pushes the sampling blades 6 to pass in and out through the hinged connecting rod 10 in the axial movement process of the threaded column 2, so that the two sampling blades 6 are abutted to form a smaller circular incision, the rotary excision is continued, the sampling blades enter from the large incision, and the sampling blades 6 of the blades 6 are obliquely arranged, so that an incision with a large outer opening and a small inner opening is formed in the cutting process, the suturing and the recovery are easy, the practicability is strong,
at sample blade 6 removal in-process, through the sliding fit between slider 8 and dovetail 9, can avoid sample blade 6 to take place the angular migration at the removal in-process, the accuracy of sample blade 6 displacement has been improved, play limiting displacement, at 2 axial displacement in-process of screw thread post, through the sliding fit between circumference gag lever post 15 and the screw thread post 2, make screw thread post 2 only can carry out axial displacement, can't carry out circumferential direction, circumference gag lever post 15 comprises bar lug and polished rod integrated into one piece, further ensure that screw thread post 2 only can carry out axial displacement, can't carry out circumferential direction.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the utility model.
Although the terms sampler body 1, threaded post 2, blade nest 3, segmented biopsy cutter assembly 4, circumferential screw drive 5, sampling blade 6, blade stop 7, slide 8, dovetail 9, linkage 10, knob 11, axial stop 12, knob axial stop ring 13, circumferential stop 14, circumferential stop rod 15, etc., are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (10)
1. The utility model provides a two formula skin biopsy samplers, includes sampler main part (1), its characterized in that, sampler main part (1) in be equipped with screw thread post (2) that can follow straight reciprocating motion, sampler main part (1) on be equipped with blade cover platform (3), screw thread post (2) on be equipped with burst formula biopsy cutter subassembly (4), burst formula biopsy cutter subassembly (4) and blade cover platform (3) looks sliding fit, sampler main part (1) on be equipped with rotatable circumference spiro union driving piece (5), circumference spiro union driving piece (5) and screw thread post (2) looks spiro union cooperation.
2. The two-piece skin biopsy sampler according to claim 1, wherein the two-piece biopsy cutter assembly (4) comprises two sampling blades (6) arranged on the threaded post (2), and the sampling blades (6) are in sliding fit with the inner wall of the blade holder (3).
3. The two-piece skin biopsy sampler according to claim 2, wherein the sampling blade (6) is disposed in an inclined manner, a blade limiting portion (7) is disposed at one end of the sampling blade (6) close to the blade sleeve platform (3), and the blade limiting portion (7) is in sliding fit with the blade sleeve platform (3).
4. The two-piece skin biopsy sampler according to claim 3, wherein the blade limiting part (7) comprises a sliding block (8) arranged on the sampling blade (6), a plurality of dovetail grooves (9) symmetrical along the central line of the blade sleeve platform (3) are arranged in the blade sleeve platform (3), and the sliding block (8) is in sliding fit with the dovetail grooves (9).
5. The two-piece skin biopsy sampler according to claim 4, wherein the sampling blade (6) is connected with the threaded column (2) through a connecting rod (10), one end of the connecting rod (10) is hinged with the sampling blade (6), and the other end is hinged with the threaded column (2).
6. The two-piece skin biopsy sampler according to claim 5, wherein the circumferential screw-coupling driving member (5) comprises a knob (11) disposed on the sampler body (1), the knob (11) has an internal thread formed therein, the threaded column (2) has an external thread formed thereon, and the external thread of the threaded column (2) is screw-coupled to the internal thread of the knob (11).
7. The two-piece skin biopsy sampler according to claim 6, wherein the knob (11) is provided with an axial limiting portion (12), and the axial limiting portion (12) is in sliding fit with the sampler body (1).
8. The two-piece skin biopsy sampler according to claim 7, wherein the axial stop (12) comprises a knob axial stop ring (13) disposed on the knob (11), the knob axial stop ring (13) being in sliding engagement with the sampler body (1).
9. The two-piece skin biopsy sampler according to claim 8, wherein the sampler body (1) is provided with a circumferential limiting part (14), the circumferential limiting part (14) extends into the threaded column (2), and the threaded column (2) is in sliding fit with the circumferential limiting part (14).
10. The two-piece skin biopsy sampler according to claim 9, wherein the circumferential limiting part (14) comprises a circumferential limiting rod (15) arranged in the sampler body (1), the circumferential limiting rod (15) extends into the threaded column (2), and the threaded column (2) is in sliding fit with the circumferential limiting rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121201619.0U CN215306155U (en) | 2021-05-31 | 2021-05-31 | Two-piece skin biopsy sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121201619.0U CN215306155U (en) | 2021-05-31 | 2021-05-31 | Two-piece skin biopsy sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215306155U true CN215306155U (en) | 2021-12-28 |
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ID=79549668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121201619.0U Expired - Fee Related CN215306155U (en) | 2021-05-31 | 2021-05-31 | Two-piece skin biopsy sampler |
Country Status (1)
| Country | Link |
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| CN (1) | CN215306155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115670531A (en) * | 2022-09-16 | 2023-02-03 | 中国人民解放军总医院第一医学中心 | Skin biopsy sampler with adjustable |
-
2021
- 2021-05-31 CN CN202121201619.0U patent/CN215306155U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115670531A (en) * | 2022-09-16 | 2023-02-03 | 中国人民解放军总医院第一医学中心 | Skin biopsy sampler with adjustable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |