CN207220840U - Specimen retrieval device - Google Patents
Specimen retrieval device Download PDFInfo
- Publication number
- CN207220840U CN207220840U CN201720125170.1U CN201720125170U CN207220840U CN 207220840 U CN207220840 U CN 207220840U CN 201720125170 U CN201720125170 U CN 201720125170U CN 207220840 U CN207220840 U CN 207220840U
- Authority
- CN
- China
- Prior art keywords
- specimen
- snare
- retrieval device
- taking
- outer tube
- 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.)
- Expired - Fee Related
Links
- 239000000314 lubricant Substances 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 210000001519 tissue Anatomy 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 230000006378 damage Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000003902 lesion Effects 0.000 description 4
- 238000010827 pathological analysis Methods 0.000 description 4
- 238000002271 resection Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 238000000338 in vitro Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 210000002784 stomach Anatomy 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 239000000560 biocompatible material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 208000002699 Digestive System Neoplasms Diseases 0.000 description 1
- 238000012327 Endoscopic diagnosis Methods 0.000 description 1
- 238000012323 Endoscopic submucosal dissection Methods 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 208000024558 digestive system cancer Diseases 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001861 endoscopic biopsy Methods 0.000 description 1
- 238000012326 endoscopic mucosal resection Methods 0.000 description 1
- 238000002674 endoscopic surgery Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 201000010231 gastrointestinal system cancer Diseases 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000002350 laparotomy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000004876 tela submucosa Anatomy 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The purpose of this utility model is to provide a kind of specimen retrieval device including sampler and specimen taking-out bag.Sampler has：Handle component；Outer tube, the outer tube extends from the handle component, and snare component, the snare component is movably set in the cavity of the outer tube, its proximal end is connected to control member, its distal end is unfolded into snare portion with the sliding through the outer tube of snare component, and the specimen taking-out bag has closed bottom and opening portion, multiple fixing components are equipped with along the neighboring of the opening portion, the specimen taking-out bag is fixed to the snare portion.
Description
Technical field
It the utility model is related to specimen retrieval device, the more particularly to decollement (Endoscopic under endoscopic mucosal
Submucosal dissection, ESD), resection under endoscopic mucosal (Endoscopic mucosal resection,
EMR), the endoscopic surgery such as stomach wall full-thickness resection (Endoscopic full-thickness resection, EFTR) under scope
The specimen retrieval device used in operation.
Background technology
In recent years, with the continuous development of endoscopic assistance and operating technology, in order to more effectively tackle early stage digestive system cancer
And precancerous lesion and reduce patient's wound for being subject in Tradtional laparotomy and organ removal operation, clinically using scope
The situation of the Minimally Invasive Surgeries such as surgical procedure operation gradually increases.
Decollement (Endoscopic submucosal dissection, ESD) is as a kind of emerging under endoscopic mucosal
Endoscopic diagnosis operate and receive much concern, its under scope with improvement electric knife directly from submucosa to early lesion mucous membrane into
Row is peeled off, and can also carry out stripping excision to submucous tumor.
Compared with small lesion generally by attracting to take out with mirror after treatment end under scope, larger lesion is then by common
Snare directly extracts tissue specimen and pulls out it in vitro with mirror.In this process, sample may be destroyed because of drawing from
And the integrality of sample tissue is caused to be destroyed.In addition in the case that the larger such as diameter of specimen volume taken out is more than 3cm,
During taking-up, it is also easy to produce mechanical injuries to alimentary canal etc., causes secondary injury.
Relative to the above-mentioned prior art, it is known that there are the specimen retrieval device with lower structure：That is, snare is formed as
Net bag-shaped, so that it is external to be smoothly moved out to provide the tissue specimen cut stronger supporting.But the circle of net bag-shaped
The depth for covering device is shallower to coordinate the size of outer tube.Thus, tissue specimen of the diameter more than 2cm can not be accommodated in the string bag completely
The snare of shape, overflowing part may be destroyed in traction process.Further, since the string bag edge of the snare of net bag-shaped
It is typically more sharp keen, also it is easy to cause tissue specimen and destruction is cut during taking-up, so as to causes to be difficult to make essence
True pathological diagnosis.
Utility model content
Utility model technical problem to be solved
The purpose of this utility model is to provide a kind of specimen retrieval device, can realize that tissue specimen is complete, safety
Take out so as to provide accurate pathological diagnosis, and protect normal alimentary canal injury-free at the same time.
Technical scheme applied to solve the technical problem
Specimen retrieval device involved by the utility model includes sampler and specimen taking-out bag, and sampler has：Hand
Handle component；Outer tube, the outer tube extend from the handle component, and snare component, which is movably set in institute
State in the cavity of outer tube, its proximal end is connected to control member, its distal end slides through with the snare component
The outer tube and be unfolded into snare portion, the specimen taking-out bag has closed bottom and opening portion, along the opening portion
Neighboring is equipped with multiple fixing components, and the specimen taking-out bag is fixed to the snare portion.
Utility model effect
According to the utility model, can realize larger volume pathological tissues sample it is complete and safely from it is internal take out so as to
More accurately pathological diagnosis is obtained, and reduces the damage of normal gut in operation.In addition, the sample of the utility model
Withdrawing device is compact-sized, and cost is relatively low and easy to use.
Brief description of the drawings
Fig. 1 is the schematic diagram of the specimen retrieval device 1 involved by embodiment 1.
Fig. 2A is the enlarged diagram of the specimen taking-out bag 3 of the specimen retrieval device 1 involved by embodiment 1, and Fig. 2 B are
The enlarged diagram of the buckle 311 of the specimen taking-out bag 3 of specimen retrieval device 1 involved by embodiment 1.
Fig. 3 is the schematic diagram of the specimen retrieval device 1A involved by embodiment 2.
Fig. 4 is the enlarged diagram of the specimen taking-out bag 3A of the specimen retrieval device 1A involved by embodiment 2.
Embodiment
Hereinafter, several concrete examples are enumerated referring to the drawings, and multiple modes for implementing the utility model are illustrated.Respectively
Same label is marked to a same part in figure.Each embodiment simply illustrates, it is of course possible to shown in different embodiments
Structure carries out aliquot replacement or combination.In embodiment 2, the description of the item identical with embodiment 1 is omitted, only to difference
Point illustrates.The same action effect produced based on same structure is not referred to one by one in various embodiments particularly.
Described " distal side " refers to the direction away from user in apparatus, unit etc. in the utility model, " near
Side " refers in apparatus, unit etc. close to the part of user.
Embodiment 1
Fig. 1 is the schematic diagram of the specimen retrieval device 1 involved by embodiment 1.Fig. 2A is the mark involved by embodiment 1
The enlarged diagram of the specimen taking-out bag 3 of this withdrawing device 1, Fig. 2 B are the marks of the specimen retrieval device 1 involved by embodiment 1
The enlarged diagram of the buckle 311 of this taking-up bag 3.
As shown in Figure 1, specimen retrieval device 1 includes sampler 2 and specimen taking-out bag 3.Sampler 2 possesses handle component
20th, outer tube 21, snare component 22 and control member 23.Handle component 20 facilitates medical worker to be gripped.Outer tube
21 are used to protect snare component and driving component described later, and using biocompatible materials, its close end prolongs from handle component 20
Stretch, and be designed as with the size that can be inserted through the channel part such as endoscopic biopsy duct 2.8mm for endoscopic technic
7Fr.21 shaping of outer tube, length are generally 2.4m, its rectangular cross-section, ellipse etc..
Snare component 22 is movably set in the intracavitary of outer tube 21, can be opposite along its length in the inside of outer tube 21
Moved in outer tube 21.The snare component 22 is configured to its proximal end and is connected to control member 23, its distal end with
Snare component 22, which distally slides, can expose through outer tube 21 and form snare portion 221 oval during vertical view.Grasping
Make control member 23 and make snare component 22 proximally side move when, snare portion 221 occur compression be incorporated into outer tube 21
It is interior.Snare component 22 can use with biocompatibility and with necessarily elastic material such as metal, its rectangular cross-section,
Ellipse etc..The shape in snare portion 221 is not limited to oval or other closed curve-shapeds such as circular, preferably
Snare portion 221 is formed as the ellipse of 3cm × 6cm when overlooking.
As shown in Figure 2 A, specimen taking-out bag 3 is configured to have open/closed opening portion 31 and closed bottom 32.Mark
This taking-up bag 3 is generally shaped like tubulose, and the section of its opening portion 31 corresponds to the shape in snare portion 221, such as can be in circle
The closed curve-shapeds such as shape, ellipse.Determine the size of specimen taking-out bag 3 as needed, preferably specimen taking-out bag 3 is configured to out
Finish dimensional substantially 3cm × 6cm, depth substantially 10-15cm.
As shown in Figure 2 A, the neighboring of the opening portion 31 of specimen taking-out bag 3 multiple fixing components are provided with for example to block
Button 311.As shown in Figure 2 B, which is to offer the recess for prolonging the extension of its length direction in cylinder and the section that is formed
In the component of C fonts, for example, can by be bonded etc. mode by be buckled 311, the end of opposite side with offering recess side
The inner side that sample takes out bag 3 is fixed in face.In this case, by being embedded in snare portion 221 and being clipped to the recessed of buckle 311
Portion, so as to which the opening portion 31 of specimen taking-out bag 3 is fixed on snare portion 221.It is preferred that buckle 311 is away from 31 periphery of opening portion
Edge leaves the interval of 3-5mm or so, so as to improve peace when specimen taking-out bag 3 is installed to snare portion 221 in surgical procedure
Dress property.It is preferred that the periphery of the opening portion 31 of specimen taking-out bag 3 is provided with 8~10 buckles 311, so that in surgical procedure
The middle opening portion that can preferably tighten sample and take out bag 3, is more preferably provided with 8 buckles 311.Furthermore it is preferred that the length of buckle 311
Spend for 1.5mm or so, so as to will buckle 311 be more securely fixed to specimen taking-out bag 3 while ensure specimen taking-out bag 3
Opening portion 31 closure.Buckle 311 can use the manufacture of the materials such as flexible plastics or rubber.Fixing component is simultaneously unlimited
In buckle 311, as long as the opening portion 31 of specimen taking-out bag 3 can be fixed to the component in snare portion 221.
Specimen taking-out bag 3 can be made of any suitable biocompatible materials.Specimen taking-out bag 3 can for example utilize
The medical macromolecular materials of substantially transparent are made, in the form of preferably observing sample.It is preferred that medical macromolecular materials have compared with
High tensile and thinner thickness, for example, polyurethane, thickness 0.05mm.
At least part outer surface of the specimen taking-out bag 3 is more preferably provided with lubricant coating, thus facilitate its with mirror into
Enter alimentary canal, and can be easier to take out as far as possible to reduce for gastral damage after inserting sample.The lubriation material can be with
It is polyacrylamide, polyvinyl alcohol, polyethylene glycol oxide, polyethylene glycol, polyacrylic acid etc..In addition it is also possible in specimen taking-out bag 3
Inner surface set lubricant coating.
In use, using control member 23, snare component 22 is moved in outer tube 21, and make its snare portion
221 expose from 21 distal side of outer tube and are opened because of the elastic restoring force of its own.Taken out for the sample with buckle 311
Bag 3, the recess of buckle 311 is clipped to by the way that snare portion 221 is embedded in, so that the opening portion 31 of specimen taking-out bag 3 be fixed on
Snare portion 221.Afterwards, control member 23 is operated, making snare component 22, proximally side is moved relative to outer tube 21, so that circle
Set portion 221 deforms and partially retracted in outer tube 21, and the opening portion 31 of specimen taking-out bag 3 is also synchronously tightened therewith, sample
Take out bag 3 and form deflated state.
In vitro, sampler 2 is sent into scope work duct, and by the buckle 311 of specimen taking-out bag 3 and snare portion 221
Mutually it is buckled, tightening snare portion 221 causes the also deflated of specimen taking-out bag 3；Then, specimen retrieval device is entered with scope and disappeared
Change road, reach at where tissue specimen.Operation control member 23 makes snare portion 221 be stretched out from outer tube 21 and opens, so as to mark
This sampling bag 3 also becomes open mode therewith.After placing tissue specimen in specimen taking-out bag 3, medical worker operates again
Control member 23 is so that proximally side is mobile and at least partly deform retraction outer tube 21 in snare portion 221.Meanwhile specimen taking-out bag
3 opening portion 31 is tightened, so that sample is housed in bag.Afterwards, release scope and sample is taken out into bag 3 with mirror from body
Interior taking-up.
Take out tissue specimen merely with circular snare portion 221 in compared with the prior art or utilize what is be integrally formed
The snare of net bag-shaped takes out the mode of tissue specimen, and present embodiment is due to can according to the ruler for the sample tissue for wishing to cut off
It is very little to select suitable specimen taking-out bag, thus completely can be safely extracted out the sample after excision, so as to improve pathological diagnosis
Accuracy, and the secondary damage to people digest road can be reduced.
Embodiment 2
Fig. 3 is the schematic diagram of the specimen retrieval device 1A involved by embodiment 2.Fig. 4 is the mark involved by embodiment 2
The enlarged diagram of the specimen taking-out bag 3A of this withdrawing device 1A.Compared to embodiment 1, the sample of embodiment 2 takes out dress
Putting 1A further has driving component 24, and the neighboring of the opening portion of specimen taking-out bag 3A is further provided with being used to be fixed to
The align member of driving component 24 such as bail 312.
Driving component 24 is movably set in the cavity of outer tube 21, can be in the inside of outer tube 21 phase along its length
Moved for outer tube 21, its proximal end is connected to control member 23, its distal end protrudes from the remote of outer tube 21
Side end and equipped with tractive unit such as in draw hook 241.In this case, draw hook 241 can be with the one of driving component 24
Formed, the distal end of driving component 24 can also be fixed on by other well-known connection modes.The driving component 24
The materials, its rectangular cross-section, circle etc. such as plastics, metal, metal alloy can be used.
Bail 312 is formed at the neighboring of the opening portion 31 of specimen taking-out bag 3A, is more preferably formed at following position：
That is, when the opening portion 31 of sample sampling bag 3A is fixed to snare portion 221, which is located at sample sampling bag 3A's
Opening portion 31 near the position of draw hook 241.
In the utility model, bail 312 is only an example of align member, and draw hook 241 is only tractive unit
One example, can be used cooperatively so as to which the opening portion 31 of specimen taking-out bag 3A be fixedly connected as long as however, it is not limited to this
To the component of driving component 24.By make to be formed at sample taking-up portion 3A opening portion 31 bail 312 with being formed at
The draw hook 241 of driving component 24 is fixedly connected, thus one end of opening portion 31 is fixed, so as to install to the mark in snare portion 221
This taking-up bag 3A can be with the together opening and closing of snare portion 221.
In surgical procedure, in vitro, sampler 2A is sent into scope work duct, and by the buckle of specimen taking-out bag 3A
311 it is chimeric be clipped to snare portion 221, afterwards, the bail 312 of specimen taking-out bag 3A is fixedly attached to the traction of driving component
Hook 241.Tighten snare portion 221 and cause specimen taking-out bag 3A also deflateds, then, specimen retrieval device 1A is entered with scope
Alimentary canal, reaches at where tissue specimen.Operation control member 23 makes snare portion 221 be stretched out from outer tube 21 and opens, because opening
One end of oral area 31 is fixedly attached to draw hook 241, and sample sampling bag 3A can the together opening and closing with snare portion 221.Taken in sample
After placing tissue specimen in output 3A, medical worker operates control member 23 again so that the proximally side movement of snare portion 221
And at least partly deform retraction outer tube 21.Meanwhile the opening portion 31 of specimen taking-out bag 3A is tightened, so that sample be housed in
In bag.Afterwards, scope is released to take out sample taking-up bag 3A from internal with mirror.
In the present embodiment, by forming bail 312 in the periphery of the opening portion 31 of specimen taking-out bag 3A, and utilize
Driving component 24 is attached fixation to it, so as to when carrying out opening operation to the opening portion 31 of specimen taking-out bag 3A, subtract
It is few because the distal end in sleeve component 21 is gathered in the opening portion 31 of specimen taking-out bag 3A and stubborn situation, and then improve
The security of operation.
Industrial practicality
In the above description, specimen retrieval device 1 is applied to exemplified by the excision of tumor stomach in scope diagnostic operation
To illustrate, but the utility model can also be treated under Sigmoidoscope in use, and can apply to decollement under endoscopic mucosal, interior
Stomach wall full-thickness resection under mucosectomy, scope under mirror.
Label declaration
1,1A specimen retrieval device, 2,2A samplers, 20 handle components, 21 outer tubes, 22 snare components, 221 snare portions,
23 control members, 24 driving components, 241 draw hooks, 3,3A specimen taking-out bags, 31 opening portions, 311 buckles, 312 bails, 32
Closed bottom.
Claims (10)
- A kind of 1. specimen retrieval device, it is characterised in that including sampler and specimen taking-out bag,The sampler has：Handle component；Outer tube, the outer tube extend from the handle component, andSnare component, the snare component are movably set in the cavity of the outer tube, its proximal end is connected to control member, Its distal end is unfolded into snare portion with the sliding through the outer tube of snare component,The specimen taking-out bag has closed bottom and opening portion,Multiple fixing components are equipped with along the neighboring of the opening portion, the specimen taking-out bag is fixed to the snare Portion.
- 2. specimen retrieval device as claimed in claim 1, it is characterised in thatDriving component is further included, which is movably set in the cavity of the outer tube, its proximal end is connected to institute Control member is stated, its distal end protrudes from the distal end of the outer tube and is equipped with tractive unit,The neighboring of the opening portion of the specimen taking-out bag is provided with align member, the align member is fixedly connected In the tractive unit, so that the specimen taking-out bag is with the snare portion together opening and closing.
- 3. specimen retrieval device as claimed in claim 1 or 2, it is characterised in thatFixing component top edge 3-5mm apart from the periphery of the opening portion.
- 4. specimen retrieval device as claimed in claim 1 or 2, it is characterised in thatAt least part outer surface of the specimen taking-out bag is provided with lubricant layer.
- 5. specimen retrieval device as claimed in claim 1 or 2, it is characterised in thatThe fixing component is to be offered in cylinder along the recess of the long side direction extension of the cylinder and the section that is formed is in The buckle of C fonts, so that snare portion insertion is clipped to the recess of the buckle.
- 6. specimen retrieval device as claimed in claim 1 or 2, it is characterised in thatThe quantity of the fixing component is 8~10.
- 7. specimen retrieval device as claimed in claim 1 or 2, it is characterised in thatThe specimen taking-out bag is configured to the opening portion that there is area to be 3cm × more than 6cm, and its longitudinal length is 10-15cm.
- 8. specimen retrieval device as claimed in claim 2, it is characterised in thatThe align member is arranged at following position：That is, in the state of the specimen taking-out bag to be fixed to the snare portion Near the position of the tractive unit.
- 9. specimen retrieval device as claimed in claim 2, it is characterised in thatThe tractive unit is draw hook,The align member bail.
- 10. specimen retrieval device as claimed in claim 5, it is characterised in thatThe length of the buckle is 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720125170.1U CN207220840U (en) | 2017-02-10 | 2017-02-10 | Specimen retrieval device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720125170.1U CN207220840U (en) | 2017-02-10 | 2017-02-10 | Specimen retrieval device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207220840U true CN207220840U (en) | 2018-04-13 |
Family
ID=61838646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720125170.1U Expired - Fee Related CN207220840U (en) | 2017-02-10 | 2017-02-10 | Specimen retrieval device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207220840U (en) |
-
2017
- 2017-02-10 CN CN201720125170.1U patent/CN207220840U/en not_active Expired - Fee Related
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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: 20180413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |