CN106989976B - Specimen sampler - Google Patents
Specimen sampler Download PDFInfo
- Publication number
- CN106989976B CN106989976B CN201710379611.5A CN201710379611A CN106989976B CN 106989976 B CN106989976 B CN 106989976B CN 201710379611 A CN201710379611 A CN 201710379611A CN 106989976 B CN106989976 B CN 106989976B
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- China
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- push
- inner sleeve
- pull rod
- rear end
- fixedly connected
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
Abstract
The invention discloses a specimen sampling device, which comprises an inner sleeve and an outer sleeve, wherein two ends of the inner sleeve are fixedly connected with the inner wall of the outer sleeve to form a middle annular cavity, and an upper cavity and a lower cavity are divided from the annular cavity through a partition plate; an upper push-pull rod is arranged in the middle of the upper chamber, a lower push-pull rod is arranged in the middle of the lower chamber, the rear end of the upper push-pull rod is fixedly connected with the rear end of the inner sleeve through a tension spring, and the front end of the upper push-pull rod is fixedly connected with a flexible blocking piece; the front end of the flexible separation blade is fixedly connected with the front end of the lower push pull rod; the flexible baffle is provided with a cutting edge; the rear end of the lower push pull rod is fixedly connected with a sliding block, the bottom of the outer sleeve is provided with a sliding groove, and the sliding block is arranged in the sliding groove in a sliding manner; a push rod with a conical end at the front end and a push plate at the rear end is arranged in the inner sleeve in a penetrating manner, a push-pull through groove is formed in the side walls of the inner sleeve and the outer sleeve, and a push block sliding along the push-pull through groove is arranged on the side wall of the push rod; the outer wall of the outer sleeve is marked with scale marks, and the rear end of the outer sleeve is provided with a grab handle. The invention has the advantages of simple structure, simplified operation process, simpler operation and saved operation time.
Description
Technical Field
The invention relates to a medical instrument, in particular to a specimen taking device for extracting and freezing lesion tissues.
Background
In a surgical operation, after a pathological tissue is cut off, the pathological tissue needs to be taken, and the obtained tissue specimen is subjected to slice examination pathology or frozen for a long time for future scientific research in order to facilitate pathological diagnosis or future scientific research. The existing sample taking device without special purpose is to place the cut large pathological tissue on a material taking table, cut and find a material taking part, then cut and obtain the tissue through a curved forceps, a scalpel, a surgical scissors and the like, and then carry out slice examination or put the tissue into a freezing tube for long-term freezing.
The existing processes of incision, clamping, cutting, segmentation, tubulation cryopreservation and the like are needed when the specimen is sampled, the operation is very troublesome, an operator is easily stabbed by a scalpel or a surgical scissors when the scalpel or the surgical scissors are used, and the integrity of the specimen is damaged in the sampling process. In addition, need hold the sample with the hand when cutting on sample platform of drawing materials, the hand can contact with pathological change tissue, once gloves have the damage then can lead to hand skin direct contact pathological change tissue, easily causes the operator to infect. Meanwhile, as the specimen is bacteria in the specimen drawing process and the sterility of instruments is required to be ensured during the operation, the specimen can be drawn only after the operation is finished, so that the specimen drawing shelf time is too long and the specimen failure phenomenon is easy to occur.
Disclosure of Invention
The invention aims to provide a specimen sampler which is convenient for extracting and freezing lesion tissues.
In order to achieve the purpose, the invention can adopt the following technical scheme:
the specimen sampler comprises an inner sleeve and an outer sleeve which are sleeved in a clearance and have the same length, wherein two ends of the inner sleeve are fixedly connected with the inner wall of the outer sleeve to form a middle annular cavity, a group of symmetrical upper cavity and lower cavity of an arc structure are divided in the annular cavity by a partition plate arranged along the length direction of the annular cavity, and the chord lengths of the upper cavity and the lower cavity are consistent with the inner diameter of the inner sleeve; an upper push-pull rod is horizontally arranged in the middle of the upper chamber along the length direction of the upper push-pull rod, a lower push-pull rod parallel to the upper push-pull rod is horizontally arranged in the middle of the lower chamber, the rear end of the upper push-pull rod is fixedly connected with the rear end of the inner sleeve through a tension spring, and the front end of the upper push-pull rod is fixedly connected with a flexible blocking piece with the width consistent with that of the upper chamber; the front end of the flexible baffle extends forwards to penetrate out of the upper cavity, extends downwards to cross the front port of the inner sleeve and then penetrates back into the lower cavity to be fixedly connected with the front end of the lower push pull rod; a cutting edge is formed in the position, corresponding to the front end opening of the inner sleeve, of the flexible baffle, and the length of the flexible baffle above the cutting edge is larger than the diameter of the cutting edge; the rear end of the lower push rod is fixedly connected with a sliding block, the bottom of the outer sleeve is provided with a sliding groove along the axial direction of the lower push rod, the rear end of the sliding groove extends to one side to form a sliding block clamping groove, and the sliding block is arranged in the sliding groove in a sliding manner; a push rod penetrates through the inner sleeve, a tapered end penetrating out of the cutting edge is fixedly arranged at the front end of the push rod, the rear end of the push rod extends backwards out of the inner sleeve, and a push plate is fixedly arranged at the rear end of the push rod; a push-pull through groove is formed in the side walls of the inner sleeve and the outer sleeve along the length direction, a push block sliding along the push-pull through groove is arranged on the side wall of the push rod, the push block extends out of the outer sleeve, and the front end of the push-pull through groove extends towards one side to form a push block clamping groove; the outer wall of the outer sleeve is marked with scale marks along the length direction, and the rear end of the outer sleeve is provided with a grab handle coated with an anti-slip rubber layer on the surface.
The invention has the advantages that the structure is simple, the complicated processes of incision, clamping, cutting, segmentation, tubing, freezing and the like do not need to be carried out by using various medical instruments (such as a curved forceps, a scalpel, a pair of surgical scissors and the like), the operation process is simplified, the operation is simpler and more convenient, and the operation time is saved; the specimen is cut without using sharp instruments such as a scalpel, a surgical scissors and the like, so that the integrity of the specimen is ensured while an operator is not accidentally injured; the hand is not contacted with the specimen (lesion tissue), so that an operator is not infected, and the safety of specimen sampling operation is improved; the sample that downcuts in the operation can directly be drawn materials, need not to wait to go on again after the operation is done, avoids the sample to shelve, prevents that the sample from becoming invalid.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the inner and outer sleeves of fig. 1.
Fig. 3 is a schematic structural view of the push rod of fig. 1.
Fig. 4 is a schematic view showing a coupling structure of the upper and lower push-pull rods of fig. 1.
Fig. 5 is an expanded view of the flexible flap of fig. 1.
Fig. 6 is an enlarged sectional view taken along linebase:Sub>A-base:Sub>A in fig. 2.
Fig. 7 is a bottom view of fig. 2.
Fig. 8 is a sectional view taken along line B-B in fig. 7.
Detailed Description
As shown in fig. 1 to 8, the specimen sampling device according to the present invention includes an inner cannula 1 and an outer cannula 2, which are sleeved in a gap and have the same length, wherein two ends of the inner cannula 1 are fixedly connected with two ends of an inner wall of the outer cannula 2 to form a middle annular cavity, a group of arc-shaped upper cavity 4 and arc-shaped lower cavity 5 (see fig. 6) are partitioned by a partition plate 3 arranged along the length direction in the annular cavity, and the chord lengths of the upper cavity 4 and the lower cavity 5 are the same as the inner diameter of the inner cannula 1.
An upper push-pull rod 6 is horizontally arranged in the middle of the upper chamber 4 along the length direction of the upper push-pull rod, a lower push-pull rod 7 parallel to the upper push-pull rod 6 is horizontally arranged in the middle of the lower chamber 5, the upper push-pull rod 6 and the lower push-pull rod 7 both move back and forth along the axial direction of the inner sleeve 1, the rear end of the upper push-pull rod 6 is fixedly connected with the rear end of the inner sleeve 1 through a tension spring 8, and the front end of the upper push-pull rod is fixedly connected with a flexible blocking piece 9 which is consistent with the width of the upper chamber 4 (the width of the upper chamber 4 is the length of the arc length of the upper chamber), and the chord lengths of the upper chamber 4 and the lower chamber 5 are consistent and are part of the annular cavity, so the width of the flexible blocking piece 9 is also consistent with the width of the lower chamber 5; the front end of the flexible baffle plate 9 extends forwards out of the upper chamber 4, extends downwards to cross the front end port of the inner sleeve 1, then extends back into the lower chamber 5 and is fixedly connected with the front end of the lower push-pull rod 7 (the connection of the upper push-pull rod 6 and the lower push-pull rod 7 is shown in fig. 4).
A cutting edge 10 is arranged on the flexible blocking piece 9 corresponding to the front end opening of the inner sleeve 1, namely the diameter of the cutting edge 10 is consistent with the inner diameter of the inner sleeve 1, and the length of the flexible blocking piece 9 above the cutting edge 10 is larger than the diameter of the cutting edge 10 (see fig. 5); the rear end of the lower push-pull rod 7 is fixedly connected with a sliding block 11, the bottom of the outer sleeve 2 is provided with a sliding groove 12 along the axial direction of the lower push-pull rod 7, the rear end of the sliding groove 12 extends towards one side to form a sliding block clamping groove 13, the size of the sliding block clamping groove 13 is matched with that of the sliding block 11, and the sliding block 11 is slidably arranged in the sliding groove 12.
A push rod 14 penetrates through the inner sleeve 1, a tapered end head 15 penetrating out of the cutting edge 10 is fixedly arranged at the front end of the push rod 14, the rear end of the push rod 14 extends backwards to form the inner sleeve 1, a push plate 16 is fixedly arranged at the rear end of the push rod 14, and the push plate 16 is of an arc-shaped sheet structure with a forward arc surface, so that the push rod 14 can be conveniently pushed and pulled (see fig. 3); the push-pull through groove 17 is formed in the side walls of the inner sleeve 1 and the outer sleeve 2 along the length direction, a push block 18 sliding along the push-pull through groove 17 is arranged on the side wall of the push rod 14, the push block 18 extends out of the outer sleeve 2, the front end of the push-pull through groove 17 extends towards one side to form a push block clamping groove 19, and the size of the push block clamping groove 19 is matched with that of the push block 18.
The outer wall of the outer sleeve 2 is marked with a scale mark 20 along the length direction, so that the depth of the outer sleeve inserted into the specimen can be conveniently judged; the rear end of the outer sleeve 2 is provided with a grab handle 21 with the surface coated with an anti-slip rubber layer, so that the grab handle 21 can be conveniently held by a hand to insert a specimen.
The operation process of the specimen sampler of the invention is as follows:
firstly, the handle 21 is held by hand to insert the front end of the specimen sampler into the specimen to the position above the specimen to be sampled, the insertion depth is determined according to the concrete condition of the specimen, and the insertion depth and whether the specimen is inserted in place can be accurately judged through the scale mark 20; when the sample sampling device is inserted in place, the push block 18 is pushed out of the push block clamping groove 19 and the push rod 14 is pulled backwards, so that the push block 18 moves to the rearmost end of the push-pull through groove 17, a cavity for containing a sample is formed at the front end of the inner sleeve 1 at the moment, the sample sampling device is inserted inwards, the cavity at the front end of the inner sleeve 1 is filled with the sample (namely the front end of the sample jacking push rod 14 filled in the inner sleeve 1), and the sample sampling device is inserted in place at the moment.
Then, the slide block 11 is moved backward rapidly and is clamped in the slide block clamping groove 13, the lower push-pull rod 7 moves backward under the driving of the slide block 11, and drives the flexible blocking piece 9 connected with the front end to move downwards in the lower cavity 5, at the moment, the cutting edge 10 on the flexible blocking piece 9 can cut off the specimen from top to bottom, and meanwhile, the section of the flexible blocking piece 9 above the cutting edge 10 can be clamped on the front end opening of the inner sleeve 1 to prevent the specimen in the inner sleeve 1 from falling out, (the flexible blocking piece 9 can enable the upper push-pull rod 6 to move forward in the downward movement process, and the upper push-pull rod 6 pulls the tension spring 8 to extend), and at the moment, the specimen sampler can be taken out.
Finally, after the specimen sampler is taken out, the slide block 11 is withdrawn from the slide block clamping groove 13, and at the moment, under the action of the return tension of the tension spring 8, the upper push-pull rod 6 drives the flexible blocking piece 9 to return to the upper chamber 4, so that the cutting edge 10 is restored to the position aligned with the front port of the inner sleeve 1; then the push rod 14 is pushed forwards, and the sample in the inner sleeve 1 is pushed out, so that the sample can be frozen and stored in the freezing and storing tube for a long time; certainly also can release a segment sample, operate slider 11 once more, will be located the sample of interior sleeve pipe 1 outside and cut off, form the slice, conveniently directly carry out pathological examination.
Claims (1)
1. A specimen sampler is characterized in that: the inner sleeve is characterized by comprising an inner sleeve (1) and an outer sleeve (2) which are sleeved in a clearance and have the same length, wherein two ends of the inner sleeve (1) are fixedly connected with the inner wall of the outer sleeve (2) to form an annular cavity in the middle, a group of arc-shaped upper cavities (4) and lower cavities (5) which are symmetrical to each other are divided in the annular cavity through partition plates (3) arranged along the length direction of the annular cavity, and the chord lengths of the upper cavities (4) and the lower cavities (5) are the same as the inner diameter of the inner sleeve (1); an upper push-pull rod (6) is horizontally arranged in the middle of the upper chamber (4) along the length direction of the upper push-pull rod, a lower push-pull rod (7) parallel to the upper push-pull rod (6) is horizontally arranged in the middle of the lower chamber (5), the rear end of the upper push-pull rod (6) is fixedly connected with the rear end of the inner sleeve (1) through a tension spring (8), and the front end of the upper push-pull rod is fixedly connected with a flexible blocking piece (9) with the same width as the upper chamber (4); the front end of the flexible baffle (9) extends forwards to penetrate out of the upper cavity (4), extends downwards to cross the front port of the inner sleeve (1) and then penetrates back into the lower cavity (5) to be fixedly connected with the front end of the push-down pull rod (7); a cutting edge (10) is formed in the position, corresponding to the front end opening of the inner sleeve (1), of the flexible blocking piece (9), and the length of the flexible blocking piece (9) above the cutting edge (10) is larger than the diameter of the cutting edge (10); the rear end of the lower push rod (7) is fixedly connected with a sliding block (11), the bottom of the outer sleeve (2) is provided with a sliding groove (12) along the axial direction of the lower push rod (7), the rear end of the sliding groove (12) extends to one side to form a sliding block clamping groove (13), and the sliding block (11) is arranged in the sliding groove (12) in a sliding manner; a push rod (14) penetrates through the inner sleeve (1), a conical end head (15) penetrating out of the cutting edge (10) is fixedly arranged at the front end of the push rod (14), the rear end of the push rod extends backwards out of the inner sleeve (1), and a push plate (16) is fixedly arranged at the rear end of the push rod (14); a push-pull through groove (17) is formed in the side walls of the inner and outer sleeves (1 and 2) along the length direction, a push block (18) which slides along the push-pull through groove (17) is arranged on the side wall of the push rod (14), the push block (18) extends out of the outer sleeve (2), and the front end of the push-pull through groove (17) extends towards one side to form a push block clamping groove (19); the outer wall of the outer sleeve (2) is marked with scale marks (20) along the length direction, and the rear end of the outer sleeve (2) is provided with a grab handle (21) the surface of which is coated with an anti-skid rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379611.5A CN106989976B (en) | 2017-05-25 | 2017-05-25 | Specimen sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379611.5A CN106989976B (en) | 2017-05-25 | 2017-05-25 | Specimen sampler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106989976A CN106989976A (en) | 2017-07-28 |
| CN106989976B true CN106989976B (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710379611.5A Active CN106989976B (en) | 2017-05-25 | 2017-05-25 | Specimen sampler |
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| Country | Link |
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| CN (1) | CN106989976B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109549693B (en) * | 2018-09-30 | 2021-10-19 | 杭州市第一人民医院 | Telescopic cervical dilation rod and use method thereof |
| CN111397943B (en) * | 2020-04-20 | 2023-05-09 | 山东中医药大学附属医院 | Focal material drawing device and sampling method for sampling uterine adenomyosis specimens |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251641A (en) * | 1992-07-29 | 1993-10-12 | Hgg Laser Fare, Inc. | Biopsy needle |
| CN202942149U (en) * | 2012-12-03 | 2013-05-22 | 上海交通大学医学院附属上海儿童医学中心 | Novel biopsy device for solid tumor |
| CN103932742A (en) * | 2014-03-28 | 2014-07-23 | 河南科技大学第一附属医院 | Skin biopsy trephine device |
| RU160731U1 (en) * | 2015-06-26 | 2016-03-27 | Государственное бюджетное образовательное учреждение высшего профессионального образования "Оренбургский государственный медицинский университет" Министерства здравоохранения Российской федерации ГБОУ ВПО ОрГМУ Минздрава России | DEVICE FOR BIOPSY |
-
2017
- 2017-05-25 CN CN201710379611.5A patent/CN106989976B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251641A (en) * | 1992-07-29 | 1993-10-12 | Hgg Laser Fare, Inc. | Biopsy needle |
| CN202942149U (en) * | 2012-12-03 | 2013-05-22 | 上海交通大学医学院附属上海儿童医学中心 | Novel biopsy device for solid tumor |
| CN103932742A (en) * | 2014-03-28 | 2014-07-23 | 河南科技大学第一附属医院 | Skin biopsy trephine device |
| RU160731U1 (en) * | 2015-06-26 | 2016-03-27 | Государственное бюджетное образовательное учреждение высшего профессионального образования "Оренбургский государственный медицинский университет" Министерства здравоохранения Российской федерации ГБОУ ВПО ОрГМУ Минздрава России | DEVICE FOR BIOPSY |
Non-Patent Citations (1)
| Title |
|---|
| 胸腔前外侧壁层胸膜活检30例临床分析;金普乐等;《中国肿瘤临床》;20080930(第18期);全文 * |
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| CN106989976A (en) | 2017-07-28 |
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