CN106137278A - Resection organization's extractor - Google Patents

Resection organization's extractor Download PDF

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Publication number
CN106137278A
CN106137278A CN201610586834.4A CN201610586834A CN106137278A CN 106137278 A CN106137278 A CN 106137278A CN 201610586834 A CN201610586834 A CN 201610586834A CN 106137278 A CN106137278 A CN 106137278A
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CN
China
Prior art keywords
tube
bag
bracing frame
extractor
line
Prior art date
Application number
CN201610586834.4A
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Chinese (zh)
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CN106137278B (en
Inventor
石星明
裴世宁
谢家银
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南京东万生物技术有限公司
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Priority to CN201610586834.4A priority Critical patent/CN106137278B/en
Publication of CN106137278A publication Critical patent/CN106137278A/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/50Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body

Abstract

The present invention open a kind of resection organization extractor, including outer tube and the inner tube that can move back and forth along its inwall, the far-end of inner tube is positioned at outer tube tube chamber, distal outer tube tube chamber contract arranges the bracing frame with open loop being made up of shape-memory material, sheathed material bag on bracing frame, the opening part of bracing frame stretches out and forms two free ends, this free end is fixing with inner tube far-end to be connected, the material bag being simultaneously positioned at this opening part is connected with proximal outer tube by line, and this line is in case of bending;When promoting inner tube to make bracing frame and material bag removal outer tube and line reach tight state for the first time, bracing frame and material bag open completely;Retracting that inner tube makes part bracing frame be contracted to distal outer tube tube chamber, material bag bag mouth being when tightening up therewith and be co-located at outer tube side with another part bracing frame, line departs from tight state;When again promoting inner tube to make line reach tight state, bracing frame and material bag open completely;Achieve material bag and repeat opening and closing.

Description

Resection organization's extractor
Technical field
The present invention relates to a kind of operating theater instruments, take out external particularly in endoscope-assistant surgery for the pathological tissues that will excise Resection organization's extractor.
Background technology
In endoscope-assistant surgery, resection organization's extractor is generally used to be taken in operative space by the pathological tissues that live body excises Go out.Conventional extractor includes cylindrical long tube, material bag 4, bracing frame 3, inner tube and handle, and bracing frame 3 is outside around material The bag mouth of bag 4, is recovered into bracing frame 3 cylindrical long tube by tractive handle during use, and material bag 4 bag mouth is long by cylinder Spout part is spacing and closes;But after material bag 4 bag mouth is closed, because there is frictional force between material bag 4 bag mouth and bracing frame 3, to Before when being again pushed into handle, material bag 4 bag mouth of closedown is mobile, such as Fig. 1 so that material bag 4 bag mouth cannot with bracing frame 3 one Again open;Therefore, the current material bag taking sundries can only carry out disposable folding.
And generally require the multiple tissues of excision in performing the operation, for avoiding the extractor constantly more renewed in operation process to bring The problems such as trivial operations, operating time lengthen, operation cost raising, safety reduction, therefore, the tissue first excised in art need to be put Put and wait in patient's body lumen, until can all include in extractor after excising all pathological tissues, extractor band sell Art space;This process is likely to cause the Implantation matastasis of sick cell, has a strong impact on healthy the causing of patient.And And, the current sundries material bag bag mouth that takes cannot accurate adjusting size, it is impossible to the tissue size of actual excision is fitted mutually with operation Join, take out pathological tissues to operator and bring inconvenience.
Summary of the invention
Goal of the invention: present invention aims to problems of the prior art, it is provided that a kind of material bag can be many Resection organization's extractor that secondary folding and material bag bag mouth can accurately regulate.
Technical scheme: resection organization of the present invention extractor, including outer tube with in can moving back and forth along its inwall Pipe, the far-end of inner tube is positioned at outer tube tube chamber, and distal outer tube tube chamber contract is arranged by having out that shape-memory material is made The bracing frame of ring, sheathed material bag on this bracing frame, the opening part of bracing frame stretches out and forms two free ends, and this is freely End is fixing with inner tube far-end to be connected, and the material bag being simultaneously positioned at this opening part is connected with proximal outer tube by line, and this line It is in case of bending;When promoting inner tube to make bracing frame and material bag removal outer tube and line reach tight state for the first time, bracing frame Open completely with material bag;Retract that inner tube makes part bracing frame be contracted to distal outer tube tube chamber, material bag bag mouth tightens up also therewith When being co-located at outer tube side with another part bracing frame, line departs from tight state;Inner tube is again promoted to make line reach tight shape During state, bracing frame and material bag open completely.
After promoting inner tube to make bracing frame and material bag open completely for the first time, retract inner tube and make bracing frame in outer tube tube chamber Shrinking, now two free ends of bracing frame drive whole bracing frames relative to material bag generation sliding, and bracing frame is farthest End is also relative to distal outer tube sliding, and the distance of sliding is the biggest, and material bag bag mouth is the least, when outside the distalmost end convergence of bracing frame During pipe distal end, bag mouth is of completely closed, simultaneously as material bag is always positioned at outside outer tube, therefore the position of line far-end becomes Change little, only make line depart from tight state;When needs are again turned on material bag storage tissue, promoting inner tube, bracing frame is Far-end slides, and drives the material bag at bracing frame distalmost end to slide, owing to the material bag of bracing frame opening part is by line simultaneously Pull strength cause herein with outer tube geo-stationary, it is impossible to follow material bag at bracing frame distalmost end and synchronize to be subjected to displacement, make Obtain material bag bag mouth can be opened again.
Preferably, line is polyurethane line or nylon wire.
Preferably, this resection organization's extractor also includes sealing ring, is used for wrapping along sealing ring inwall to the projecting inward formation of ring Enclosing the outer shroud of outer tube and for surrounding the internal ring of inner tube, wherein, outer shroud and internal ring are coaxially disposed, and its junction is formed ring-type convex Rising, the near-end of outer tube is butted on this high spot, and inner tube can move back and forth along internal ring inwall.
Further, internal ring is positioned at outside ring or the ring of outer shroud.
Further, interference fit is formed between outer shroud and outer tube, internal ring and inner tube respectively.
Above-mentioned sealing ring is silica gel sealing ring.
Above-mentioned shape-memory material is marmem or elastomeric material;Preferably, marmem is NiTi shape Shape memory alloys;Further, elastomeric material is medical stainless steel spring or elastic polymer material.
The near-end of above-mentioned inner tube is fixedly connected with handle, and this handle is positioned at outside outer tube.
The far-end of above-mentioned outer tube is fixedly connected with handle, and the near-end of inner tube passes this handle.
Beneficial effect: compared with prior art, it is an advantage of the current invention that: (1) present invention is by setting up line, and will support The material bag of frame opening part and line carry out flexible fixing, when needing to be again turned on the material bag after tightening up, owing to bracing frame leaves Material bag at Kou by the pull strength of line cause herein with outer tube geo-stationary, it is impossible to follow material bag remainder synchronize send out Raw displacement so that material bag bag mouth can be opened again, such that it is able to realize the repetition folding of material bag bag mouth, excises every time All can be included in material bag after pathological tissues, be prevented effectively from the sick cell Implantation matastasis being likely to result in art, energy simultaneously Enough simplification is executed the operating process of patient, effectively saves operating time, reduces operation cost;(2) after material bag bag mouth tightens up, operation Person can carry out openings of sizes when instrumentality pocket opens again by controlling thrust size, enables to execute patient more easily by disease Become tissue to include in material bag;(3) present invention is by setting up sealing ring so that between inner and outer pipe and external environment condition and outer tube And formed between inner tube and seal structure, the effectively normal maintenance of pneumoperitoneum in holding operative space, it is to avoid inner tube is during push-and-pull The gas leakage caused, improves the safety of operation further.
Accompanying drawing explanation
Structural representation when Fig. 1 is that in prior art, the material bag of resection organization's extractor is released again;
Fig. 2 is the axonometric chart of resection organization's extractor of the present invention;
Fig. 3 is resection organization's extractor structural representation in an initial condition of the present invention;
Fig. 4 a is the resection organization's extractor of present invention front view under material bag bag mouth open configuration;
Fig. 4 b is the material bag of the present invention top view when bag mouth opens;
Fig. 4 c is the enlarged drawing in Fig. 4 b at A;
Fig. 5 a is the resection organization's extractor of present invention front view under material bag bag mouth closure state;
Fig. 5 b is the material bag of the present invention top view when bag mouth closes;
Fig. 5 c is the enlarged drawing in Fig. 5 b at B;
Fig. 6 a is the axonometric chart of the sealing ring of the present invention;
Fig. 6 b is the sectional view of the sealing ring of the present invention;
Fig. 7 is the assembling figure of part in the handle of the present invention and handle;
Fig. 8 is the sealing ring of the present invention and the first retainer ring and the installation diagram of the second retainer ring.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is described further.
Such as Fig. 2, resection organization's extractor of the present invention, including outer tube 1, inner tube 2, bracing frame 3 and material bag 4.The present invention In, for convenience of understanding, resection organization's extractor is defined as near-end near one end of operator, near the one of operative site End is defined as far-end.
It is outside that outer tube 1 is set in inner tube 2, and inner tube 2 can the inwall of outer tube 1 move back and forth, and the far-end of inner tube 2 is positioned at outer tube In the tube chamber of 1;The near-end of inner tube 2 can be located at outside outer tube 1, for convenience of operation, it is possible to the fixing connection of near-end one in inner tube 2 Hands 7, as connected by latch, handle 7 is positioned at outside outer tube 1;The far-end of outer tube 1 also can be fixedly connected with handle 8, such as ears hands Handle, the near-end of inner tube 2 passes this handle 8, during use, gripping handle 8 on the other hand, is fixed the position of resection organization's extractor, separately Push-and-pull inner tube on the other hand 2 or handle 7 make inner tube 2 move in outer tube 1.
Outer tube 1 can directly fixing with handle 8 be connected, it is possible to arrange the fixing locking steel ring 81 connected and the in handle 8 One retainer ring 82, this first retainer ring 82 is coaxial with locking steel ring 81;Such as Fig. 7, the first retainer ring 82 is fixing with handle 8 to be connected, As passed through to snap connection, and being internally provided with the first fixing hole matched with outer tube 1 external diameter, the near-end of outer tube 1 inserts first In fixing hole, and the outer wall of tooth-shape structure and the outer tube 1 of locking steel ring 81 offsets, and is securely fixed so that it is can not rotate with Move left and right, can effectively prevent outer tube 1 to loosen.
Bracing frame 3 is the annular with opening, and material bag 4 is set on bracing frame 3;The opening part of bracing frame 3 is to extension Stretching two free ends 31 of formation, two free ends 31 are fixing with the far-end of inner tube 2 to be connected;Can be sheathed on two free ends 31 Clip, also can be then inserted into inner tube 2 at the outside sheathed buckle of clip, connected by latch make free end 31 with Inner tube 2 is fixed;Bracing frame 3 uses shape-memory material to make, and this shape-memory material can be marmem, such as NiTi shape Shape memory alloys, it is possible to for elastomeric material, such as medical stainless steel spring, elastic polymer material etc..
Being provided with line 5 between inner tube 2 and outer tube 1, line 5 can be the flexible wires such as polyurethane line, nylon wire;Outside its near-end connects Pipe 1 near-end, far-end is connected with the material bag 41 of bracing frame 3 opening part, forms flexibility fixing.
Such as Fig. 3, under original state, material bag 4 is contracted in outer tube 1 distal tube intracavity with bracing frame 3, and line 5 is managed at outer tube 1 Intracavity is in case of bending;
Promoting inner tube 2 for the first time, bracing frame 3 and material bag 4 move in outer tube 1 tube chamber with inner tube 2, until fully extended Outer tube 1, the bag mouth of material bag 4 is strutted by the tension force of bracing frame 3 completely, and now, line 5 far-end reaches furthest travel, in tight shape State, such as Fig. 4 a~4c;
Retracting inner tube 2, make bracing frame 3 to outer tube 1 tube chamber contract, now two free ends 31 of bracing frame 3 drive whole There is sliding relative to material bag 4 in individual bracing frame 3, and bracing frame 3 distalmost end (i.e. in the loop configuration of bracing frame 3 with outer tube 1 Far-end is apart from farthest position) also relative to outer tube 1 far-end sliding, the distance of sliding is the biggest, and the bag mouth of material bag 4 is the least, When distalmost end convergence outer tube 1 distal end of bracing frame 3, bag mouth is of completely closed, and now, major part bracing frame is positioned at outer tube 1 Distal tube intracavity, material bag 4 and sub-fraction bracing frame are co-located at outside outer tube 1, and therefore the change in location of line 5 far-end is not Greatly, line 5 is only made to depart from tight state, such as Fig. 5 a~5c;
When needs are again turned on material bag 4 storage tissue, promoting inner tube 2, the distalmost end of bracing frame 3 is slided, with Time drive the material bag at bracing frame distalmost end to slide, owing to the material bag 41 of bracing frame 3 opening part is caused by the pull strength of line 5 Herein with outer tube 1 geo-stationary, it is impossible to follow the material bag at bracing frame distalmost end and synchronize to be subjected to displacement so that material bag 4 bags Mouth can be opened again;When material bag 4 bag mouth opens the most completely, such as Fig. 4 a~4c, line 5 becomes tight state again.
The present invention realizes again opening after material bag 4 bag mouth closes by setting up line 5, thus realizes the weight of material bag 4 Multiple folding, all can be included in material bag after each removal lesion tissue, be prevented effectively from the sick cell being likely to result in art Implantation matastasis, can simplify simultaneously and execute the operating process of patient, effectively save operating time, reduce operation cost.Material bag 4 bags During mouth opens again, operator can control, by controlling the thrust size to inner tube 2, the degree that bracing frame 3 is pushed out, Thus the openings of sizes that instrumentality pocket 4 is when again opening, enable to execute patient and take out pathological tissues more easily.
Resection organization's extractor may also include sealing ring 6, such as Fig. 6 a~6b, along sealing ring 6 inwall to the projecting inward formation of ring Outer shroud 61 and internal ring 62, it is outside that outer shroud 61 is enclosed in outer tube 1, and the size of its interior bone matches with the external diameter of outer tube 1, operation Time, intraperitoneal forms pneumoperitoneum, when resection organization's extractor is positioned in pneumoperitoneum for a long time, can make outer tube 1 and outside, abdominal cavity Between keep seal;It is outside that internal ring 62 is enclosed in inner tube 2, and the size of its interior bone matches with the external diameter of inner tube 2, when performing the operation long Between when carrying out, can make to keep between inner tube 2 and outside, abdominal cavity sealing;Inner tube 2 can move back and forth along internal ring 62 inwall, thus can phase Outer tube 1 is moved back and forth;Outer shroud 61 and internal ring 62 are coaxially disposed, and both junction forms annular projection 63, outer tube 1 near End be butted on this at protruding 63, make to keep between inner tube 2 and outer tube 1 sealing, when inner tube 2 is moved relative to outer tube 1, can prevent Leak gas between inner and outer pipe, it is ensured that the normal maintenance of intraperitoneal pneumoperitoneum.
The size of outer shroud 61 inner via hole can be slightly less than the external diameter of outer tube 1, the size of internal ring 62 inner via hole can be slightly less than inner tube 2 External diameter, make the parts coordinated two-by-two form interference fit in contact site, by inner and outer pipe body to sealing ring 6 inner via hole Extruding, make sealing ring 6 completely cut off air with inner and outer pipe contact site;Outer shroud 61 and internal ring 62 may be configured as concentric ring, and bias can Body and sealing ring 6 can be caused to produce gap when assembling, reduce the sealing effectiveness of sealing ring 6.Lead in outer shroud 61 and internal ring 62 The two ends in hole can be set to oblique angle, by the rounding off at oblique angle so that inner tube 2, outer tube 1 are more convenient with the assembling of sealing ring 6, with Time can make that inner tube 2 is smooth in internal ring 62 slides.
Sealing ring 6 can be located in the handle 8 of proximal outer tube, with the first retainer ring 82 and locking steel ring 81 with the use of, this Time, also need to increase by the second retainer ring 83, such as Fig. 8, in handle 8, the first retainer ring 82, sealing ring 6 and the second retainer ring 83 are successively Fixing connecting, first retainer ring the 82, second retainer ring 83 is all fixing with handle 8, and outside being provided with inner tube 2 in the second retainer ring 83 The second fixing hole that footpath matches;The near-end of outer tube 1 sequentially passes through locking steel ring the 81, first retainer ring 82, the outer shroud of sealing ring 6 61 and offset with annular projection 63, the near-end of inner tube 2 passes the proximal end of outer tube 1 and sequentially passes through the internal ring of sealing ring 6 62, the second retainer ring 83, fixes with handle 7, by by sealing ring 6 and locking steel ring the 81, first retainer ring the 82, second retainer ring 83 with the use of, can effectively prevent outer tube 1 to loosen sealing ring 6 seal failure caused.

Claims (10)

1. resection organization's extractor, it is characterised in that include outer tube (1) and the inner tube (2) that can move back and forth along its inwall, The far-end of inner tube (2) is positioned at outer tube (1) tube chamber, and outer tube (1) distal tube intracavity shrinks what setting was made up of shape-memory material Having the bracing frame (3) of open loop, the upper sheathed material bag (4) of this bracing frame (3), the opening part of bracing frame (3) stretches out formation Two free ends (31), this free end (31) is fixing with inner tube (2) far-end to be connected, and is positioned at the material bag of this opening part simultaneously (41) it is connected with outer tube (1) near-end by line (5) and this line (5) is in case of bending;Inner tube (2) is promoted to make support for the first time When frame (3) and material bag (4) removal outer tube (1) and line (5) reach tight state, bracing frame (3) and material bag (4) are opened completely Open;Retract inner tube (2) make part bracing frame (3) be contracted to outer tube (1) far-end tube chamber, material bag (4) bag mouth close therewith and with When another part bracing frame (3) is co-located at outer tube (1) side, line (5) departs from tight state;Inner tube (2) is again promoted to make line (5), when reaching tight state, bracing frame (3) and material bag (4) open completely.
Resection organization the most according to claim 1 extractor, it is characterised in that also include sealing ring (6), along sealing ring (6) inwall is used for surrounding the outer shroud (61) of outer tube (1) and being used for surrounding the internal ring (62) of inner tube (2) to the projecting inward formation of ring, its In, outer shroud (61) and internal ring (62) are coaxially disposed, and its junction forms annular projection (63), and the near-end of described outer tube (1) is butted on This projection (63) place, inner tube (2) can move back and forth along internal ring (63) inwall.
Resection organization the most according to claim 2 extractor, it is characterised in that described internal ring (62) is positioned at outer shroud (61) In ring or outside ring.
Resection organization the most according to claim 2 extractor, it is characterised in that described outer shroud (61) and outer tube (1), internal ring (62) and interference fit is formed respectively between inner tube (2).
Resection organization the most according to claim 2 extractor, it is characterised in that described sealing ring (6) is silica gel sealing ring.
Resection organization the most according to claim 1 extractor, it is characterised in that described line (5) is polyurethane line or nylon Line.
Resection organization the most according to claim 1 extractor, it is characterised in that described shape-memory material is shape memory Alloy or elastomeric material.
Resection organization the most according to claim 7 extractor, it is characterised in that described marmem is NiTi shape Memorial alloy, described elastomeric material is medical stainless steel spring or elastic polymer material.
Resection organization the most according to claim 1 extractor, it is characterised in that the near-end of said inner tube (2) is fixing to be connected (7) with handles, this handle (7) is positioned at outer tube (1) outside.
Resection organization the most according to claim 1 extractor, it is characterised in that the far-end of described outer tube (1) is fixing to be connected Handle (8), the near-end of inner tube (2) is had to pass this handle (8).
CN201610586834.4A 2016-07-22 2016-07-22 Resection organization's extractor Active CN106137278B (en)

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CN106137278B CN106137278B (en) 2019-02-01

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1528244A (en) * 2003-10-17 2004-09-15 李艳芳 Recycled biological sample bag
CN102327134A (en) * 2010-07-13 2012-01-25 周星 Novel endoscope object taking bag and delivery system
CN202355445U (en) * 2011-11-16 2012-08-01 常州市久虹医疗器械有限公司 Spherical stone removing net basket
CN203089321U (en) * 2013-03-01 2013-07-31 武汉蓝普医品有限公司 Small-bore endoscopic surgery fetching device
WO2014134285A1 (en) * 2013-03-01 2014-09-04 Covidien Lp Specimen retrieval device with pouch stop
EP2783636A1 (en) * 2010-10-04 2014-10-01 Covidien LP Surgical retrieval apparatus
CN104546028A (en) * 2015-01-27 2015-04-29 联合微创医疗器械(深圳)有限公司 Repetitively-openable sample pickup bag
CN104783843A (en) * 2015-04-22 2015-07-22 联合微创医疗器械(深圳)有限公司 Minimally invasive surgery fetching bag capable of being disassembled
CN204484239U (en) * 2015-03-13 2015-07-22 广州维力医疗器械股份有限公司 Negative pressure suction device
CN206102679U (en) * 2016-07-22 2017-04-19 南京东万生物技术有限公司 Extractor is organized in excision

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1528244A (en) * 2003-10-17 2004-09-15 李艳芳 Recycled biological sample bag
CN102327134A (en) * 2010-07-13 2012-01-25 周星 Novel endoscope object taking bag and delivery system
EP2783636A1 (en) * 2010-10-04 2014-10-01 Covidien LP Surgical retrieval apparatus
CN202355445U (en) * 2011-11-16 2012-08-01 常州市久虹医疗器械有限公司 Spherical stone removing net basket
CN203089321U (en) * 2013-03-01 2013-07-31 武汉蓝普医品有限公司 Small-bore endoscopic surgery fetching device
WO2014134285A1 (en) * 2013-03-01 2014-09-04 Covidien Lp Specimen retrieval device with pouch stop
CN104546028A (en) * 2015-01-27 2015-04-29 联合微创医疗器械(深圳)有限公司 Repetitively-openable sample pickup bag
CN204484239U (en) * 2015-03-13 2015-07-22 广州维力医疗器械股份有限公司 Negative pressure suction device
CN104783843A (en) * 2015-04-22 2015-07-22 联合微创医疗器械(深圳)有限公司 Minimally invasive surgery fetching bag capable of being disassembled
CN206102679U (en) * 2016-07-22 2017-04-19 南京东万生物技术有限公司 Extractor is organized in excision

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