CN215953012U - Mucous membrane strip art sample device of drawing materials under scope - Google Patents
Mucous membrane strip art sample device of drawing materials under scope Download PDFInfo
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- CN215953012U CN215953012U CN202122167401.4U CN202122167401U CN215953012U CN 215953012 U CN215953012 U CN 215953012U CN 202122167401 U CN202122167401 U CN 202122167401U CN 215953012 U CN215953012 U CN 215953012U
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Abstract
The utility model provides a specimen taking device for mucosa dissection under an endoscope, which comprises a base and a tool apron; the base is used for containing pathological specimens, the knife holder comprises a knife rest and a plurality of blades arranged on the knife rest, the blades are uniformly arranged in parallel at intervals, and the distance between every two adjacent blades is 3 mm; one side of the tool holder pivots relative to the base to enable the tool holder to be in a cutting state with the tool blade perpendicular to the base; the endoscopic mucosal exfoliation specimen taking device further comprises a guide mechanism which is connected with the base and the cutter holder in a guiding manner; the guide mechanism is configured to vertically guide the blade to enable the blade to be positioned vertically adjacent to cut a pathological specimen positioned on the base. By applying the technical scheme, the specimen drawing device for endoscopic mucosal dissection can be used for cutting accurately.
Description
Technical Field
The utility model relates to a specimen taking device for mucosa dissection under an endoscope.
Background
Endoscopic mucosal Exfoliation (ESD) refers to a minimally invasive technique for completely exfoliating diseased mucosa from submucosa under an endoscope, and the technique mainly has the advantages of diagnosing and treating early digestive tract tumors and completely excising superficial lesions with a certain area at one time. With the rapid development of minimally invasive surgery and precise treatment, ESD is also rapidly developed, and has great clinical significance for diagnosis and treatment of diseases such as early esophageal cancer, early gastric cancer, interstitial tumor, early colon tumor and the like. The quality of the pathological examination of the ESD specimen has a decisive influence on the accuracy of the diagnosis of the above-mentioned lesions. After the sample stripped by the ESD is sent to the pathology department, a physician of the pathology department needs to perform material drawing examination on all sample tissues, wherein the material drawing requirements are as follows: the tissues are cut in parallel at intervals of 3mm, and the quality of the obtained materials has important influence on the accuracy of pathological diagnosis of the ESD specimen.
At present, a special ESD sample drawing device, a Pali and other applied utility model patent 'a pathological sample drawing gang knife' (application number: 201822045153.4) is more favorable for cutting ESD samples than the traditional drawing knife, but still has more obvious defects. The disadvantages are that: firstly, the ESD specimen cut by the gang knife cannot ensure that the cut tissue is parallel (parallel cutting is a critical requirement for obtaining the ESD specimen), and the reasons for this disadvantage are: 1. when the gang tool is used for cutting an ESD (electro-static discharge) sample, a pathologist needs to fix the sample with one hand and hold the gang tool handle with the other hand to drag the blade to cut the ESD sample, and drag force is uneven in the dragging process of the gang tool due to uneven sample texture or uneven thickness and the like, so that dragging tracks are not straight lines; 2. due to the fact that the blade is dragged manually, dragging tracks are not straight lines due to human factors; 3. because one end of the row knife is free, the problem of unstable fixation exists, the dragging track is not straight due to the fact that the pressure on one side of the blade is large and the deviation is caused in the dragging process due to the fact that the texture of a diseased region is hard, the tissue of a partial region is calcified and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a specimen taking device for endoscopic mucosal dissection
In order to solve the technical problem, the utility model provides a specimen taking device for mucosa dissection under an endoscope, which comprises a base and a tool apron;
the base is used for containing pathological specimens, the knife holder comprises a knife rest and a plurality of blades arranged on the knife rest, the blades are uniformly arranged in parallel at intervals, and the distance between every two adjacent blades is 3 mm;
one side of the tool holder pivots relative to the base to enable the tool holder to be in a cutting state with the tool blade perpendicular to the base; the endoscopic mucosal exfoliation specimen taking device further comprises a guide mechanism which is connected with the base and the cutter holder in a guiding manner; the guide mechanism is configured to vertically guide the blade to enable the blade to be positioned vertically adjacent to cut a pathological specimen positioned on the base.
In a more preferred embodiment, the guide mechanism comprises a first guide portion and a second guide portion; when the tool apron is in a cutting state, the first guide part and the second guide part are positioned on two sides of the tool apron so as to realize vertical guide of the tool apron.
In a better embodiment, the first guiding part comprises a first guiding column, a first guiding sleeve and a first elastic piece, the first guiding column is connected with the base, the first guiding sleeve slides on the first guiding column, the first elastic piece biases the first guiding column and the first guiding sleeve, and one side of the tool rest is pivotally connected with the first guiding sleeve; when in the cutting state, the knife rest is pressed to enable the first guide sleeve to slide on the first guide column, and the first elastic piece accumulates elastic force.
In a preferred embodiment, the second guide portion includes a second guide post, a second guide hole, and a second elastic member, the second guide post slides in the second guide hole, and the second elastic member biases the tool holder and the base; when in the cutting state, the tool rest is pressed to enable the second guide column to slide in the second guide hole, and the second elastic piece accumulates elastic force.
In a preferred embodiment, the first guiding column is connected to the base.
In a preferred embodiment, the second guiding column is connected to the tool holder, the base includes the second guiding hole, and one end of the second elastic member is connected to the tool holder.
In a better embodiment, the first guide part comprises two first guide posts, two first guide sleeves and two first elastic pieces, the two first guide posts are arranged on the base at intervals, the two first guide sleeves slide on the two first guide posts respectively, the first elastic pieces bias the first guide posts and the first guide sleeves, and one side of the tool rest is pivotally connected between the two first guide posts respectively; the second guide part comprises two second guide columns, two second guide holes and two second elastic pieces; two second guide posts are arranged on the tool apron at intervals, two second guide holes are arranged on the base at intervals, and the second elastic piece biases the tool apron and the base; when in the cutting state, the tool rest is pressed to enable the first guide sleeve to slide on the first guide column, the first elastic piece accumulates elastic force, the tool rest is pressed to enable the first guide column to slide in the second guide hole, and the second elastic piece accumulates elastic force.
In a preferred embodiment, the second guiding hole comprises a radial expanding section for receiving the second guiding column and a vertical section for vertical guiding, and the radial expanding section and the vertical section are sequentially connected along the insertion direction of the second guiding column.
In a preferred embodiment, the first guiding portion further includes a first position-limiting portion, and the second guiding portion further includes a second position-limiting portion; when the blade is vertically close to the base, the first limiting part and the second limiting part are used for limiting the approaching distance of the blade.
In a better embodiment, the first guiding portion includes a first guiding post and a first guiding sleeve, the first guiding post is connected to the base, the first guiding sleeve slides on the first guiding post, the tool post is pivotally connected to the first guiding sleeve, and a bottom end of the first guiding sleeve defines the first limiting portion; the second guide part comprises a second sleeve connected with the tool rest, and the bottom end of the second sleeve defines the second limiting part.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the endoscopic mucosal exfoliation specimen taking device comprises a base and a cutter holder; the base is used for containing pathological specimens, the knife holder comprises a knife rest and a plurality of blades arranged on the knife rest, the blades are uniformly arranged in parallel at intervals, and the distance between every two adjacent blades is 3 mm; one side of the knife rest pivots relative to the base so as to enable the knife rest to be in a cutting state that the blade is perpendicular to the base, the endoscopic mucosal dissection surgical specimen taking device further comprises a guide mechanism which is connected with the base and the knife rest in a guiding mode, and the guide mechanism is configured to vertically guide the blade so as to enable the blade to be close to and vertically cut a pathological specimen on the base; use the device, can realize once only getting a plurality of 3 millimeters thin slices to the pathology sample, and the cutting is accurate, is difficult for deflecting.
Drawings
Fig. 1 is a schematic perspective view of a specimen taking device for endoscopic mucosal dissection in a preferred embodiment of the utility model in an open state;
FIG. 2 is a perspective view of a specimen-drawing device for endoscopic mucosal dissection in a preferred embodiment of the present invention in a cutting state;
FIG. 3 is a schematic perspective view of a specimen-drawing device for endoscopic mucosal dissection in a preferred embodiment of the present invention in a cutting state, in which the tool holder is pressed to move down;
FIG. 4 is a perspective view of a first guide portion in a preferred embodiment of the present invention;
FIG. 5 is a perspective view of a second guide portion in the preferred embodiment of the present invention;
fig. 6 is a perspective view of a second pilot hole in a preferred embodiment of the present invention.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
Referring to fig. 1-6, a mucous membrane exfoliation specimen material drawing device under endoscope includes a base 1 and a tool apron 2, the base 1 includes a bottom plate 11 and a surrounding plate 12, the surrounding plate 12 surrounds the bottom plate 11, the bottom plate 11 is square and has a bearing area 111 for holding pathological specimens, and the bearing area 111 is located in the middle of the bottom plate 11.
The tool holder 2 comprises a tool holder 21 and a plurality of blades 22 arranged on the tool holder 21, wherein the plurality of blades 22 are uniformly arranged in parallel at intervals, and the interval between every two adjacent blades 22 is 3 mm. In the present embodiment, the holder 2 comprises 10 inserts 22. One side of the tool holder 21 is pivoted relative to the base 1 to enable the tool holder 2 to be in a cutting state in which the blade 22 is perpendicular to the base 1; the sample drawing device for the endoscopic mucosal exfoliation further comprises a guide mechanism which is connected with the base 1 and the tool apron 2 in a guiding manner; the guide mechanism is configured to vertically guide the blade 22 so as to enable the blade 22 to be vertically brought into close proximity to cut a pathological specimen located on the base 1.
One side of the knife rest 21 pivots relative to the base 1 so as to be capable of being turned over to an open state exposing the bearing area 111, an operator can place a pathological specimen taken out in an endoscopic mucosal dissection on the bearing area 111, the knife rest 21 pivots to a cutting state under the operation of the operator, at the moment, the blade 22 is perpendicular to the upper side of the base 1, namely, the blade 22 is perpendicular relative to the bearing area 111, and the blade 22 is perpendicular to the base 1 in a surface mode. Under the effect of guiding mechanism, blade holder 2 can be close to perpendicularly base 1 in order to enable blade 22 to cut the pathology sample that is located on bearing region 111, and, because the interval of two adjacent blades 22 is 3 millimeters, so the pathology sample can be cut into 3 millimeters thick slices uniformly, and is efficient, and the error is little.
The guide mechanism includes a first guide portion 31 and a second guide portion 32; when the holder 2 is in the cutting state, the first guide portion 31 and the second guide portion 32 are located on both sides of the holder 2 to enable vertical guiding of the holder 2. The first guide portion 31 includes a first guide post 311, a first guide sleeve 312, and a first elastic member, the first guide post 311 is connected to the base 1, the first guide sleeve 312 slides on the first guide post 311, the first elastic member biases the first guide post 311 and the first guide sleeve 312, and one side of the tool holder 21 is pivotally connected to the first guide sleeve 312; when in the cutting state, the tool holder 21 is pressed to slide the first guide sleeve 312 on the first guide post 311, and the first elastic member accumulates elastic force. The second guide portion 32 includes a second guide post 321, a second guide hole 322, and a second elastic member 323, the second guide post 321 slides in the second guide hole 322, and the second elastic member 323 biases the holder 2 and the base 1; when in the cutting state, the tool holder 21 is pressed to slide the second guide post 321 in the second guide hole 322, and the second elastic member 323 accumulates elastic force. When the knife rest 2 is in a cutting state, the knife rest 21 is acted by the first elastic member and the second elastic member 323 and floats on the base 1, when the knife rest 21 is acted by an external force perpendicular to the base 1, the knife rest 21 moves towards the base 1 to enable the blade 22 to cut a pathological specimen on the base 1, the first guide sleeve 312 slides on the first guide column 311, the second guide column 321 slides in the second guide hole 322, the first elastic member and the second elastic member 323 accumulate elastic force, when the external force is removed, the knife rest 2 moves in a direction away from the base 1, and an operator can pivot the knife rest 2 to an open state to take down the cut pathological specimen.
In this embodiment, the first guiding column 311 is connected to the base 1, the second guiding column 321 is connected to the tool holder 21, the base 1 includes the second guiding hole 322, and one end of the second elastic member 323 is connected to the tool holder 21.
In this embodiment, the second guiding hole 322 includes a radially enlarged section 3221 for receiving the second guiding pillar 321 and a vertical section 3222 for vertical guiding, the radially enlarged section 3221 and the vertical section 3222 are sequentially connected to each other along the inserting direction of the second guiding pillar 321, the radially enlarged section 3221 is in a flared shape, when the second guiding pillar 321 rotates along with the tool holder 21 to correspond to the second guiding hole 322, the radially enlarged section 3221 may give way to the end of the second guiding pillar 321, and further, the end of the second guiding pillar 321 may be guided to the vertical section 3222.
In this embodiment, the first guiding portion 31 includes two first guiding columns 311, two first guiding sleeves 312 and two first elastic members, the two first guiding columns 311 are arranged on the base 1 at intervals, the two first guiding sleeves 312 slide on the two first guiding columns 311 respectively, the first elastic members bias the first guiding columns 311 and the first guiding sleeves 312, and one side of the tool holder 21 is pivotally connected between the two first guiding columns 311 respectively. The second guide part 32 includes two second guide posts 321, two second guide holes 322, and two second elastic members 323; two second guide posts 321 are spaced apart from each other on the holder 2, two second guide holes 322 are spaced apart from each other on the base 1, and the second elastic member 323 biases the holder 2 and the base 1.
In this embodiment, the blade 22 is removably attached to the blade holder 21. Specifically, two ends of the blade 22 are respectively locked on the tool holder 21 by screws.
In this embodiment, the first guiding portion 31 further includes a first limiting portion 314, and the second guiding portion 32 further includes a second limiting portion 324; when the blade 22 is vertically close to the base 1, the first position-limiting portion 314 and the second position-limiting portion 324 are used for limiting the approaching distance of the blade 22. In this embodiment, the bottom end of the first guiding sleeve 312 defines the first position-limiting portion 314; the second guiding portion 32 includes a second sleeve 325 connected to the tool holder 21, the second sleeve 325 is disposed around the second guiding post 321, the second elastic member 323 is located between the second sleeve 325 and the second guiding post 321, a bottom end of the second sleeve 325 defines the second limiting portion 324, in this embodiment, when the first limiting portion 314 and the second limiting portion 324 abut against the base 1, the blade 22 abuts against the base 1.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. A specimen drawing device for endoscopic mucosal dissection is characterized by comprising a base and a tool apron;
the base is used for containing pathological specimens, the knife holder comprises a knife rest and a plurality of blades arranged on the knife rest, the blades are uniformly arranged in parallel at intervals, and the distance between every two adjacent blades is 3 mm;
one side of the tool holder pivots relative to the base to enable the tool holder to be in a cutting state with the tool blade perpendicular to the base; the endoscopic mucosal exfoliation specimen taking device further comprises a guide mechanism which is connected with the base and the cutter holder in a guiding manner; the guide mechanism is configured to vertically guide the blade to enable the blade to be positioned vertically adjacent to cut a pathological specimen positioned on the base.
2. The specimen drawing device for endoscopic mucosal dissection as claimed in claim 1, wherein: the guide mechanism comprises a first guide part and a second guide part; when the tool apron is in a cutting state, the first guide part and the second guide part are positioned on two sides of the tool apron so as to realize vertical guide of the tool apron.
3. The device for drawing specimen for mucosa resection under endoscope according to claim 2, characterized in that: the first guide part comprises a first guide post, a first guide sleeve and a first elastic piece, the first guide post is connected with the base, the first guide sleeve slides on the first guide post, the first elastic piece biases the first guide post and the first guide sleeve, and one side of the tool rest is pivotally connected with the first guide sleeve; when in the cutting state, the knife rest is pressed to enable the first guide sleeve to slide on the first guide column, and the first elastic piece accumulates elastic force.
4. The device for drawing specimen for mucosa resection under endoscope according to claim 2, characterized in that: the second guide part comprises a second guide post, a second guide hole and a second elastic piece, the second guide post slides in the second guide hole, and the second elastic piece biases the tool apron and the base; when in the cutting state, the tool rest is pressed to enable the second guide column to slide in the second guide hole, and the second elastic piece accumulates elastic force.
5. The device for drawing specimen for mucosa resection under endoscope according to claim 3, characterized in that: the first guide post is connected with the base.
6. The device for drawing specimen for submucosal dissection according to claim 4, wherein: the second guide column is connected with the tool rest, the base comprises the second guide hole, and one end of the second elastic piece is connected with the tool rest.
7. The device for drawing specimen for mucosa resection under endoscope according to claim 2, characterized in that: the first guide part comprises two first guide posts, two first guide sleeves and two first elastic pieces, the two first guide posts are arranged on the base at intervals, the two first guide sleeves slide on the two first guide posts respectively, the first elastic pieces bias the first guide posts and the first guide sleeves, and one side of the tool rest is pivotally connected between the two first guide posts respectively; the second guide part comprises two second guide columns, two second guide holes and two second elastic pieces; two second guide posts are arranged on the tool apron at intervals, two second guide holes are arranged on the base at intervals, and the second elastic piece biases the tool apron and the base; when in the cutting state, the tool rest is pressed to enable the first guide sleeve to slide on the first guide column, the first elastic piece accumulates elastic force, the tool rest is pressed to enable the first guide column to slide in the second guide hole, and the second elastic piece accumulates elastic force.
8. The device for drawing specimen for mucosa dissection under endoscope of claim 4 or 7, wherein: the second guide hole comprises a radial expansion section for receiving the second guide post and a vertical section for vertical guide, and the radial expansion section and the vertical section are sequentially connected and arranged along the insertion direction of the second guide post.
9. The device for drawing specimen for mucosa resection under endoscope according to claim 2, characterized in that: the first guide part further comprises a first limiting part, and the second guide part further comprises a second limiting part; when the blade is vertically close to the base, the first limiting part and the second limiting part are used for limiting the approaching distance of the blade.
10. The device for drawing specimen for submucosal dissection according to claim 9, wherein: the first guide part comprises a first guide post and a first guide sleeve, the first guide post is connected with the base, the first guide sleeve slides on the first guide post, the cutter holder is pivotally connected with the first guide sleeve, and the bottom end of the first guide sleeve defines a first limiting part; the second guide part comprises a second sleeve connected with the tool rest, and the bottom end of the second sleeve defines the second limiting part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122167401.4U CN215953012U (en) | 2021-09-08 | 2021-09-08 | Mucous membrane strip art sample device of drawing materials under scope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122167401.4U CN215953012U (en) | 2021-09-08 | 2021-09-08 | Mucous membrane strip art sample device of drawing materials under scope |
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| CN215953012U true CN215953012U (en) | 2022-03-04 |
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| CN202122167401.4U Active CN215953012U (en) | 2021-09-08 | 2021-09-08 | Mucous membrane strip art sample device of drawing materials under scope |
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- 2021-09-08 CN CN202122167401.4U patent/CN215953012U/en active Active
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