CN118252550A - Skin biopsy sampler - Google Patents
Skin biopsy sampler Download PDFInfo
- Publication number
- CN118252550A CN118252550A CN202410528400.3A CN202410528400A CN118252550A CN 118252550 A CN118252550 A CN 118252550A CN 202410528400 A CN202410528400 A CN 202410528400A CN 118252550 A CN118252550 A CN 118252550A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- annular blade
- bottom shell
- skin biopsy
- rotating rods
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007390 skin biopsy Methods 0.000 title claims abstract description 22
- 238000010008 shearing Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000036285 pathological change Effects 0.000 abstract 2
- 231100000915 pathological change Toxicity 0.000 abstract 2
- 244000309464 bull Species 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000001575 pathological effect Effects 0.000 description 17
- 238000005070 sampling Methods 0.000 description 14
- 230000003902 lesion Effects 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000001574 biopsy Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 206010040882 skin lesion Diseases 0.000 description 1
- 231100000444 skin lesion Toxicity 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a skin biopsy sampler, which comprises a bottom shell, wherein the bottom of the bottom shell is open, a sleeve is arranged on the top of the bottom shell in a sliding penetrating manner, and a threaded opening is formed in the top end of the sleeve; the drill rod is screwed and penetrated in the threaded opening, the bottom end of the drill rod is provided with an annular blade, and the inner side of the annular blade is provided with a plurality of elastic needle bodies in a surrounding manner; the two rotating rods are respectively rotatably arranged on the inner walls of the two sides of the bottom shell, the bottom ends of the rotating rods are provided with shearing blades, the two shearing blades are respectively positioned on the two sides of the sleeve, and the two shearing blades can be staggered under the annular blades in a crossing manner by reversely rotating the two rotating rods; the driving mechanism is used for driving the two rotating rods to reversely rotate. Can synchronous outside pulling sleeve when shifting out the drilling rod, utilize actuating mechanism to link with the rotation of bull stick with the removal of sleeve, drive two shearing blade and rotate to draw close to annular blade below when the sleeve outwards removes, realized driving two shearing blade and cut off the pathological change tissue that is taken out when shifting out the drilling rod, accomplish the quick sample to pathological change tissue.
Description
Technical Field
The invention relates to the technical field of skin biopsy, in particular to a skin biopsy sampler.
Background
Skin biopsy is a traumatic clinical examination, and the final purpose of clear clinical diagnosis or treatment is achieved by taking local materials of lesions of skin diseases and performing histopathological examination. The most commonly used method in clinic at present is trephine biopsy, which has small damage and can reach a certain cutting depth, and the trephine biopsy uses a hollow annular blade to realize the cutting of skin lesion tissues by rotary cutting.
After the pathological tissue is cut by the trephine, the tail end of the cut tissue is connected with a human body, and the pathological tissue can be sampled only by taking the trephine off and clamping the cut tissue by forceps and then cutting and separating the tissue by a scissors. However, the lesion tissue after cutting is usually smaller, so that the medical staff is difficult to rapidly and accurately clamp by forceps, inconvenience is caused to tissue sampling, and the sampling efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a skin biopsy sampler to solve the problems.
The aim of the invention is achieved by the following technical scheme:
the invention provides a skin biopsy sampler, comprising:
The bottom of the bottom shell is open, the top of the bottom shell is provided with a through hole, a sleeve is arranged in the through hole in a sliding way, and the top end of the sleeve is provided with a threaded opening;
The drill rod is screwed and penetrated into the threaded opening, an annular blade is arranged at the bottom end of the drill rod, a plurality of elastic needle bodies are arranged on the inner side of the annular blade in a surrounding mode, one end of each elastic needle body is connected with the inner wall of the annular blade, and the other end of each elastic needle body faces the direction of the drill rod and is obliquely away from the inner wall of the annular blade;
The two rotating rods are respectively rotatably arranged on the inner walls of the two sides of the bottom shell, shearing blades are arranged at the bottom ends of the rotating rods, the two shearing blades are respectively positioned on the two sides of the sleeve, and the two shearing blades can be staggered under the annular blades in a crossing manner by means of the reverse rotation of the two rotating rods; and
And the driving mechanism is used for driving the two rotating rods to reversely rotate.
Further, the driving mechanism comprises a rack, a transmission rod, gears, a first bevel gear and a second bevel gear, wherein the rack is arranged on the outer wall of the sleeve, the transmission rod is rotatably arranged in the bottom shell, the gears are arranged on the transmission rod and meshed with the rack, the two first bevel gears are respectively arranged on the transmission rod, and the two second bevel gears are respectively arranged on the top ends of the rotating rods and meshed with the corresponding first bevel gears.
Further, still include the location gasket, its bottom has the bonding subsides, set up the locating hole on the location gasket, the top of location gasket encircles the locating hole and is provided with a plurality of locating pieces, the drain pan can be placed at the top of location gasket and by a plurality of locating pieces encircle to support to paste in the outside, just the locating hole is located annular blade below.
Further, the outer walls of the bottom end and the top of the sleeve are provided with limiting rings, and when the limiting rings at the top of the sleeve are in butt joint with the top of the bottom shell, the bottom of the sleeve is flush with the bottom of the bottom shell.
Further, a containing cavity is formed in the drill rod, one end of the containing cavity is communicated with the inner side of the annular blade, and the other end of the containing cavity penetrates through one end, far away from the annular blade, of the drill rod and is provided with a sealing plug.
Further, the inner diameter of the receiving cavity is larger than the inner diameter of the annular blade.
Further, a plurality of accommodating grooves are formed in the side wall of the annular blade corresponding to the elastic needle bodies.
Further, a space is reserved between the shearing blade and the bottom of the bottom shell.
According to the technical scheme, the skin biopsy sampler provided by the invention comprises:
1. the elastic needle body inverted in the annular blade is utilized, deformation is generated when the annular blade cuts into the skin, cutting is not affected, barbs are formed when the annular blade moves out of the skin, and the cut pathological tissue is hooked and carried out, so that the pathological tissue is clamped by using forceps, and compared with the forceps, the success rate of the pathological tissue clamping is higher;
2. The drill rod is screwed with the threaded opening of the sleeve, the sleeve can be synchronously pulled outwards when the drill rod is moved out, the sleeve is moved by utilizing the driving mechanism to be linked with the rotation of the rotating rod, and the two shearing blades are driven to rotate towards the lower part of the annular blade to be close when the sleeve is moved outwards, so that the two shearing blades are driven to cut off the carried lesion tissues when the drill rod is moved out, the rapid sampling of the lesion tissues is completed, the operation is simple, the sampling difficulty is reduced, and the sampling efficiency is greatly improved;
3. The positioning gasket can be attached to the skin surface of a patient at first, pathological tissues to be sampled are positioned in the range of the positioning holes, the bottom shell is buckled between positioning blocks at the top of the positioning gasket, the pathological tissues to be sampled can be effectively ensured to be right opposite to the lower part of the range of the annular blade, the accuracy of the sampling position is ensured, the positioning gasket can also provide protection for peripheral skin tissues, and the peripheral skin tissues are prevented from being scratched when the shearing blade rotates;
4. The drilling rod can be used as a container for temporarily storing samples, tissue samples can be pushed into the accommodating cavity along the tip direction of the elastic needle body from the opening of the annular blade, and the samples can be taken out from the other end of the accommodating cavity during the delivering and detecting process, so that the sampling and delivering and detecting are convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
FIG. 1 is a schematic perspective view of an embodiment of a skin biopsy sampler according to the present invention;
FIG. 2 is a cross-sectional view of a schematic diagram of the front view of one embodiment of a skin biopsy sampler of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of a schematic rear view of an embodiment of a skin biopsy sampler according to the present invention;
FIG. 5 is a schematic bottom view of one embodiment of a skin biopsy sampler according to the present invention;
FIG. 6 is a schematic perspective view of a spacer for positioning in an embodiment of a biopsy sampler according to the present invention;
FIG. 7 is a schematic top view of a combination bottom housing and positioning pad of a biopsy sampler according to an embodiment of the invention;
Reference numerals:
the bottom shell 1, the through hole 11, the sleeve 12, the threaded port 121 and the limiting ring 122;
The drill rod 2, the annular blade 21, the elastic needle body 211, the accommodating groove 212, the accommodating cavity 22 and the sealing plug 221;
A rotating rod 3 and a shearing blade 31;
A driving mechanism 4, a rack 41, a transmission rod 42, a gear 43, a first bevel gear 44 and a second bevel gear 45;
Positioning pad 5, locating hole 51, locating piece 52.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 to 7, the skin biopsy sampler provided in this embodiment includes a bottom case 1, a drill rod 2, a rotating rod 3, and a driving mechanism 4.
Referring to fig. 1,2 and 5, a bottom of the bottom shell 1 is open, a through hole 11 is formed at the top, a sleeve 12 is slidably disposed in the through hole 11, the sleeve 12 is slidably disposed in the through hole 11, and a threaded opening 121 is formed at the top end of the sleeve 12.
Preferably, the bottom end of the sleeve 12 and the outer wall of the top are both provided with a limiting ring 122, the size of the limiting ring 122 is larger than that of the through hole 11, so as to prevent the sleeve 12 from slipping out of the through hole 11, and when the limiting ring 122 at the top of the sleeve 12 abuts against the top of the bottom shell 1, the bottom of the sleeve 12 is flush with the bottom of the bottom shell 1.
Referring to fig. 2, an external thread is disposed on the outer side of the drill rod 2, the drill rod 2 is screwed into the threaded opening 121, an annular blade 21 is disposed at the bottom end of the drill rod 2 for cutting a lesion tissue, a plurality of elastic needles 211 are disposed around the inner side of the annular blade 21, one end of each elastic needle 211 is connected with the inner wall of the annular blade 21, the other end faces the direction of the drill rod 2 and is inclined away from the inner wall of the annular blade 21, the elastic needles 211 have elasticity, when the annular blade 21 is screwed into the skin tissue, the elastic needles 211 are pushed against the inner wall of the annular blade 21, and when the annular blade 21 is taken out, the flexibility of the skin tissue of a human body is utilized, barbs are formed at the tips of the elastic needles 211 to hook the cut lesion tissue and take the lesion tissue out.
As shown in fig. 3, preferably, the side wall of the annular blade 21 is provided with a plurality of accommodating grooves 212 corresponding to the elastic needle bodies 211, so that the elastic needle bodies 211 can be pushed into the accommodating grooves 212 to reduce the resistance when the annular blade 21 rotates.
Referring to fig. 2 and 4, two rotating rods 3 are rotatably mounted on inner walls of two sides of the bottom shell 1, shearing blades 31 are disposed at bottom ends of the rotating rods 3, the two shearing blades 31 are disposed on two sides of the sleeve 12, and an upper side of one shearing blade 31 can be abutted against a lower side of the other shearing blade 31, and the two shearing blades 31 can be staggered under the annular blade 21 in a crossing manner by reversely rotating the two rotating rods 3 to form shearing force.
It should be noted that the rotation surfaces of the two shearing blades 31 are parallel to the bottom surface of the bottom case 1 to accurately cut the carried-out lesion tissue, and preferably, a space is left between the shearing blades 31 and the bottom of the bottom case 1 to prevent the shearing blades 31 from cutting the peripheral healthy tissue and from causing excessive damage to the skin of the patient.
The driving mechanism 4 is used for driving the two rotating rods 3 to reversely rotate.
As shown in fig. 2 and 4, specifically, the driving mechanism 4 includes a rack 41, a transmission rod 42, a gear 43, a first bevel gear 44 and a second bevel gear 45, the rack 41 is disposed on the outer wall of the sleeve 12 and parallel to the sliding direction of the sleeve 12, the transmission rod 42 is rotatably mounted in the bottom shell 1, the gear 43 is disposed on the transmission rod 42 and meshed with the rack 41, two first bevel gears 44 are respectively disposed on the transmission rod 42, and two second bevel gears 45 are respectively disposed on the top ends of the rotating rod 3 and respectively meshed with the corresponding first bevel gears 44. It should be noted that when the bottom of the sleeve 12 is flush with the bottom of the bottom shell 1, the two shearing blades 31 are respectively located at two sides of the sleeve 12 and spread out, and moving the sleeve 12 upwards drives the transmission rod 42 to rotate through the rack 41 and the gear 43, and further drives the two rotating rods 3 to rotate through the first bevel gear 44 and the second bevel gear 45, so that the two shearing blades 31 rotate towards below the annular blade 21.
When the device is specifically used, the bottom shell 1 is covered above pathological tissues, the sleeve 12 is moved to the bottom to be flush with the bottom of the bottom shell 1, so that the pathological tissues with samples are just in the range below the annular blade 21, the drill rod 2 is rotated to enable the annular blade 21 to cut into the skin until reaching a specified depth, then the drill rod 2 is directly pulled outwards, the drill rod 2 is pulled outwards to bring the sleeve 12 out, in the pulling process, the pointed end of the elastic needle body 211 forms barbs to hook the cut pathological tissues and bring the cut pathological tissues outwards, meanwhile, the sleeve 12 drives the two rotating rods 3 to reversely rotate through the driving mechanism 4, and the two shearing blades 31 cut off the carried pathological tissues below the annular blade 21, so that the sampling of the pathological tissues is completed.
According to the invention, the elastic needle body 211 inverted in the annular blade 21 is utilized, deformation is generated when the annular blade 21 cuts into the skin, cutting is not affected, barbs are formed when the annular blade 21 moves out of the skin, and the cut pathological tissues are hooked and brought out, so that the pathological tissues are clamped by using tweezers instead of the tweezers, and compared with the tweezers, the success rate of clamping is higher; the drill rod 2 is screwed with the threaded opening 121 of the sleeve 12, the sleeve 12 can be synchronously pulled outwards when the drill rod 2 is moved out, the sleeve 12 is moved and the rotating rod 3 is rotationally linked by the driving mechanism 4, the two shearing blades 31 are driven to rotate towards the lower part of the annular blade 21 to be close when the sleeve 12 is moved outwards, the two shearing blades 31 are driven to cut off the carried lesion tissue when the drill rod 2 is moved out, the rapid sampling of the lesion tissue is completed, the operation is simple, the sampling difficulty is reduced, and the sampling efficiency is greatly improved.
As shown in fig. 6 and 7, in an embodiment, the bottom of the positioning pad 5 is provided with an adhesive tape, a positioning hole 51 is formed in the positioning pad 5, a plurality of positioning blocks 52 are arranged around the positioning hole 51 at the top of the positioning pad 5, the bottom shell 1 can be placed at the top of the positioning pad 5 and is abutted against the outer side around the positioning blocks 52, and the positioning hole 51 is located below the annular blade 21. When the device is specifically used, the positioning gasket 5 can be attached to the skin surface of a patient, pathological tissues to be sampled are located in the range of the positioning holes 51, the bottom shell 1 is buckled between the positioning blocks 52 on the top of the positioning gasket 5, the pathological tissues to be sampled can be effectively ensured to be right under the range of the annular blade 21, the accuracy of the sampling position is ensured, the positioning gasket 5 can also provide protection for peripheral skin tissues, and the peripheral skin tissues are prevented from being scratched when the shearing blade 31 rotates.
Because the elastic needle body 211 is in a barb state, the lesion tissue taken out after the sampling is finished is difficult to be taken out from the opening of the annular blade 21 directly, therefore, as shown in fig. 2, in an embodiment, a containing cavity 22 is arranged in the drill rod 2, one end of the containing cavity 22 is communicated with the inner side of the annular blade 21, the other end penetrates through one end of the drill rod 2 far away from the annular blade 21 and is provided with a sealing plug 221, when the elastic needle body is particularly used, the drill rod 2 can be used as a container for temporarily storing a sample, the tissue sample can be pushed into the containing cavity 22 along the tip direction of the opening of the annular blade 21, and the sample can be taken out from the other end of the containing cavity 22 during the sending, so that the sampling and the sending are convenient.
Further, the inner diameter of the receiving cavity 22 is larger than the inner diameter of the annular blade 21, so that the inner diameter of the receiving cavity 22 is larger than the sample size, and the subsequent taking out is facilitated.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the claims and description.
Claims (8)
1. A skin biopsy sampler, comprising:
The bottom of the bottom shell is open, the top of the bottom shell is provided with a through hole, a sleeve is arranged in the through hole in a sliding way, and the top end of the sleeve is provided with a threaded opening;
The drill rod is screwed and penetrated into the threaded opening, an annular blade is arranged at the bottom end of the drill rod, a plurality of elastic needle bodies are arranged on the inner side of the annular blade in a surrounding mode, one end of each elastic needle body is connected with the inner wall of the annular blade, and the other end of each elastic needle body faces the direction of the drill rod and is obliquely away from the inner wall of the annular blade;
The two rotating rods are respectively rotatably arranged on the inner walls of the two sides of the bottom shell, shearing blades are arranged at the bottom ends of the rotating rods, the two shearing blades are respectively positioned on the two sides of the sleeve, and the two shearing blades can be staggered under the annular blades in a crossing manner by means of the reverse rotation of the two rotating rods; and
And the driving mechanism is used for driving the two rotating rods to reversely rotate.
2. The skin biopsy sampler of claim 1, wherein the driving mechanism comprises a rack, a transmission rod, a gear, a first bevel gear and a second bevel gear, the rack is arranged on the outer wall of the sleeve, the transmission rod is rotatably arranged in the bottom shell, the gear is arranged on the transmission rod and meshed with the rack, two first bevel gears are respectively arranged on the transmission rod, and two second bevel gears are respectively arranged on the top end of the rotating rod and respectively meshed with the corresponding first bevel gears.
3. The skin biopsy sampler of claim 1, further comprising a positioning pad having an adhesive patch at a bottom thereof, wherein the positioning pad is provided with a positioning hole, wherein a plurality of positioning blocks are disposed around the positioning hole at a top of the positioning pad, wherein the bottom shell is capable of being placed on the top of the positioning pad and abutted against an outer side by the plurality of positioning blocks, and wherein the positioning hole is disposed below the annular blade.
4. The skin biopsy sampler of claim 1, wherein the outer walls of the bottom and top of the sleeve are provided with stop rings, and when the stop rings of the top of the sleeve abut the top of the bottom shell, the bottom of the sleeve will be flush with the bottom of the bottom shell.
5. The skin biopsy sampler of claim 1, wherein a receiving channel is provided in the drill stem, one end of the receiving channel is in communication with the inner side of the annular blade, and the other end of the receiving channel penetrates through the end of the drill stem away from the annular blade and is provided with a sealing plug.
6. The skin biopsy sampler of claim 5, wherein the receiving channel has an inner diameter greater than an inner diameter of the annular blade.
7. The skin biopsy sampler of claim 1, wherein the side wall of the annular blade defines a plurality of receiving slots for each of the elastomeric needles.
8. The skin biopsy sampler of claim 1, wherein the shear blade is spaced from the bottom of the bottom housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410528400.3A CN118252550A (en) | 2024-04-29 | 2024-04-29 | Skin biopsy sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410528400.3A CN118252550A (en) | 2024-04-29 | 2024-04-29 | Skin biopsy sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118252550A true CN118252550A (en) | 2024-06-28 |
Family
ID=91607705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410528400.3A Pending CN118252550A (en) | 2024-04-29 | 2024-04-29 | Skin biopsy sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118252550A (en) |
-
2024
- 2024-04-29 CN CN202410528400.3A patent/CN118252550A/en active Pending
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