CN207236809U - A kind of Minimally Invasive Surgery decompression is anti-to break specimen bag and device - Google Patents

Abstract

It the utility model is related to a kind of anti-broken extraction bag of Minimally Invasive Surgery decompression and device, include the sack that can be opened and collapse, and the bag body formed from sack extension, the bag body includes the first bag of body formed from sack extension, first bag of body includes film and the first weld seam, and film thermal synthesis is closed bag-shaped entirety for one by first weld seam；The specimen bag also includes second bag of body, and second bag of body is formed by first bag of body bottom opening extension, and first bag of body and second bag of body link position set decompressor.

Description

A kind of Minimally Invasive Surgery decompression is anti-to break specimen bag and device

Technical field

It the utility model is related to Minimally Invasive Surgery apparatus, more particularly to a kind of specimen bag structure.

Background technology

In Minimally Invasive Surgery (especially hard tube endoscope-assistant surgery), it need to usually be led via patient skin small notch or via puncture Pipe takes out interior tissue or diseased organ.How safety easily taking-up intraluminal tissue or diseased organ, be always puzzlement it is micro- The problem of invasive procedures.Since the clinical practice first of hard tube endoscope-assistant surgery, a variety of endoscope-assistant surgery dedicated specimens have been have developed both at home and abroad Bag.It is overall to be divided into two classes although the structure and occupation mode of the specimen bag are different：The first kind, single specimen bag. Disclose a kind of band line specimen bag of one-sided open in U.S. Utility Patent US5037379, when use need to be pressed from both sides using nipper Hold specimen bag body and enter patient's body by puncturing conduit or small notch again.Second class, comprising specimen bag, conduit and spreading mechanism Take sundries tool.Disclosed in the U.S. Utility Patents such as US5465731, US5480404, US6383197 and a variety of take sundries Tool, its specimen bag are rolled-up and are accommodated within conduit, take sundries tool to enter patient's body by puncture cannula described in during use, Promote its spreading mechanism to release the specimen bag rolled to outside conduit again, and strutted specimen bag by spreading mechanism, side Civilian dress enters the tissue or diseased organ cut in operation.

The specimen bag is usually made of the plastic film or plastic sheet of 0.05mm~0.1mm.Up to the present, it is difficult to Manufacture specimen bag by the way of global formation, generally use two panels film overlay heat seal (welding), or using monolithic thin film The overlapping heat seal of doubling (welding).It will be understood by those skilled in the art that heat seal (welding) seam of specimen bag is longer, due to The factors such as heat seal (welding) clamping apparatus error, heat seal (welding) pressure error, heat seal (welding) non-uniform temperature, easily go out current situation The defects of portion gap or locally insecure seam, and be difficult to select the product containing such defect by measuring means.High-volume is raw During production, generally use, which improves heat seal (welding) temperature and increases the method for heat seal (welding) time, realizes excessive welding, it is ensured that connects Stitch firm and noresidue gap.But excessively welding typically results in the regional area thickness of specimen bag film substrate and seam transition It is significantly thinning, so as to cause the strength of materials of the seam close region to significantly reduce, easily there is breakage, this phenomenon is usual Referred to as " root is cut ".

One those skilled in the art is readily apparent that increase film thickness can strengthen specimen bag, but when specimen bag is used for Foregoing when taking in sundries tool, since the size of conduit limits, increase film thickness, which typically results in specimen bag, can not be accommodated in conduit Interior or specimen bag can not be released from conduit.The film maximum gauge of the specimen bag of the prior art usually≤0.1mm, it is and excessively molten Connection, which often results in foregoing regional area thickness, reduces by 30%~50%, significantly reduces the intensity of specimen bag.Up to the present, The probability of happening for the accident that specimen bag ruptures in Clinical practice is still larger.There is provided it is safer more easily take out patient inside The apparatus or method of tissue or diseased organ, help to improve the security of Minimally Invasive Surgery, and will promote Minimally Invasive Surgery bigger Development.

Utility model content

Therefore, the utility model aim, which is to provide one kind, can both ensure that specimen bag carried out mitigation extruding when being squeezed power Pressure, and then prevent the situation of unexpected breakage.

The utility model proposes a kind of decompression of Minimally Invasive Surgery to prevent broken specimen bag, comprising the sack that can be opened and collapse, and The bag body formed from sack extension, wherein, the bag body includes the first bag of body formed from sack extension, first bag of body bag Containing film and the first weld seam, film thermal synthesis is closed bag-shaped entirety for one by first weld seam；The specimen bag is also comprising the Two bags of bodies, second bag of body are formed by first bag of body bottom opening extension, first bag of body and second bag of body link position Decompressor is set.

A kind of preferable technical solution, wherein, the decompressor includes shrink-ring, and the shrink-ring is arranged on the connection On the outside of position.

A kind of preferable technical solution, wherein, the shrink-ring and first bag of body and second bag of body link position Connection mode includes bonding or welding.

A kind of preferable technical solution, wherein, the decompressor also includes pad, and the pad is arranged at described First bag of body and second bag of body link position, the pad close welding using underheat.

A kind of preferable technical solution, wherein, the pad extends in vivo along the link position to second bag.

A kind of preferable technical solution, wherein, the pad includes continuous pad or discontinuous welding contact.

A kind of preferable technical solution, wherein, the welding dot shape includes：Rectangle, cylinder, cone, wedge shape Or gengon taper.

A kind of preferable technical solution, wherein, the volume of second bag of body is 0.1-0.3 times of first bag of body volume.

A kind of preferable technical solution, wherein, the sack is further included around the tunnel of sack, and is threaded through the tunnel Binding in road, the binding after tissue specimen is received, can tighten the sack of specimen bag.

Another purpose of the utility model, a kind of anti-broken sample bagging apparatus of Minimally Invasive Surgery decompression, including foregoing sample Bag, the Handleset also comprising conduit tube component and through it, and the support for strutting specimen bag being connected with the Handleset Opening mechanism, the specimen bag and spreading mechanism are arranged in the conduit tube component and can be with respect to its axial movements；Pass through Handleset Operation makes the specimen bag and spreading mechanism promote to preceding in conduit tube component and stretch out sheath assembly and by the spreading mechanism Strut；The spreading mechanism is extracted out and separated with the specimen bag backward with the conduit tube component, and the binding is led through described Tube assembly.

Brief description of the drawings

In order to more fully understand the essence of the utility model, it is described in detail below in conjunction with attached drawing, wherein：

Fig. 1 is that the utility model first embodiment takes sundries tool to be in the stereogram of retracted mode；

Fig. 2 is the stereogram for taking sundries tool to be in unfolded state shown in Fig. 1；

Fig. 3 is the explosive view that sundries tool is taken shown in Fig. 2；

Fig. 4 is the simulation drawing that sack is closed when thing instrumentation is taken shown in Fig. 2；

Fig. 5 is to take sundries tool to remove conduit and the simulation drawing after spreading mechanism described in Fig. 4；

Fig. 6 is the schematic diagram of prior art heat-sealing machine heat seal process；

Fig. 7 is the schematic perspective view of the specimen bag 100 of the prior art；

Fig. 8 is the 8-8 sectional views of specimen bag shown in Fig. 7；

Fig. 9 is that welding point failure mode is the schematic diagram that welding edge is peeled off；

Figure 10 is the schematic diagram that welding point failure mode is transitional region fracture；

Figure 11 is the 11-11 sectional views of specimen bag shown in Fig. 7；

Figure 12 is the rupture schematic diagram of specimen bag shown in Figure 11；

Figure 13 is the rupture close-up schematic view of specimen bag shown in Figure 12；

Figure 14 is the schematic diagram of specimen bag shown in Fig. 1；

Figure 15 is the 15-15 sectional views of specimen bag shown in Figure 14；

Figure 16 is that specimen bag shown in Figure 15 takes thing process schematic；

Figure 17 is the decompression process schematic diagram of specimen bag shown in Figure 16；

Figure 18 is the specimen bag schematic diagram of the utility model second embodiment；

Figure 19 is the 19-19 sectional views of specimen bag shown in Figure 18；

Figure 20 is that specimen bag shown in Figure 19 takes thing process schematic；

Figure 21 is the decompression process schematic diagram of specimen bag shown in Figure 20；

Figure 22 is the specimen bag schematic diagram of the utility model 3rd embodiment；

Figure 23 is the 23-23 sectional views of specimen bag shown in Figure 22；

Figure 24 is that specimen bag shown in Figure 23 takes thing process schematic；

Figure 25 is the fold release decompression process schematic diagram of specimen bag shown in Figure 24；

Figure 26 is the specimen bag schematic diagram of the utility model fourth embodiment；

Figure 27 is the 26-26 sectional views of specimen bag shown in Figure 26；

Figure 28 is the specimen bag schematic diagram of the 5th embodiment of the utility model；

Figure 29 is the 28-28 sectional views of specimen bag shown in Figure 28；

In all views, identical label represents equivalent or similar part or component.

Embodiment

Disclosed herein is the embodiment of the utility model, it should be understood, however, that disclosed embodiment is only this reality With new example, the utility model can be realized by different modes.Therefore, this disclosure be not to be construed for Restricted, but the basis only as claim, and it is how new using this practicality as teaching those skilled in the art The basis of type.

Embodiment of the disclosure is described in detail now with reference to attached drawing, for convenience of stating, the side of follow-up all Proximity operation persons Near-end is defined as, and the side away from operator is defined as distal end.

One embodiment that Fig. 1-3 illustrate in detail the utility model takes the structure composition of sundries tool 10.Briefly, Sundries tool 10 is taken to include specimen bag 200, spreading mechanism 20, conduit tube component 30, Handleset 40 and drawing successively from distal end to near-end Line 50.Conduit tube component 30 includes hollow conduit 33 and the modular catheter portion 31 and modular catheter portion fixed thereto being combined together 32.Under different clinical practice situations, the outside diameter of the hollow conduit 33 is different, and typical diameters are roughly divided into 5mm, 8mm, 10mm, 12mm and 15mm.Handleset 40 includes proximally arriving the sequentially connected finger ring 42 in distal end and hollow drive rod 41, the driving Bar 41 is positioned in hollow conduit 33, and can be moved axially relative to the hollow conduit 33, with retracted mode (Fig. 1) and exhibition Mobile spreading mechanism 20 and specimen bag 200 between open state (Fig. 2).Spreading mechanism 20 includes elastomer 21 and and elastomer The connecting shaft 22 of 21 near-ends connection, the elastomer 21 include two generally flexible or elasticity elastic webbings 23 and elastic webbing 24, the elastic webbing 23 and 24 shape of elastic webbing are roughly the same and be symmetrical arranged along connecting shaft 22.The elastic webbing 23 and elasticity Straightway 23a and straightway 24a and the stretch section 23b and stretch section 24b, the stretch section 23a of distal end are included with 24 near-ends With support elastic reaction and deformable storage or strutted with stretch section 24b.The straightway 23a distal ends set mounting hole 23c, the stretch section 24b distal ends set mounting hole 24c, the connecting shaft 22 and mounting hole 24c and mounting hole 23c correspondence positions It is provided with axis hole 22a and elastic webbing 23 and elastic webbing 24 is riveted in connecting shaft 22 by rivet 25.The connecting shaft 22 Near-end is inserted into the distal end of drive rod 41, and the mode such as be bonded by glue, be threadedly coupled or weld and connect fixation.The skill of this area Art personnel are it is contemplated that the elastomer 21 and 22 connection mode of connecting shaft can also be welding, pin connection or by the bullet Property body 21 is directly attached fixation with 41 distal end of drive rod.

The specimen bag 200 includes the sack 201 that can be opened and collapse, and the envelope formed from the sack 201 extension The bag body 202 closed.The sack 201 is included around the tunnel 211 of sack, and the tunnel 211 is accommodating 20 He of spreading mechanism Binding 50.With reference to figure 2-3, the distal end of the binding 50 includes slip joint 51, the distal end of the binding 50 pass through tunnel 211 and Its near-end 53 passes through the slip joint 51, forms the binding ring 52 roughly the same with mouth size.The elastomer 21 is inserted into institute State in tunnel 222.It is described to take sundries tool 10 to complete that usually specimen bag 200 is wrapped on elastomer 21 (with reference to figure 2) after assembling And (with reference to figure 1) is accommodated within hollow conduit 33.Disclosed in U.S. Utility Patent US8986321 and take the more of sundries tool Kind winding and storage mode, other take sundries tool patent with also disclose it is a variety of winding and store modes, a common technology Personnel are to its slightly adaptation, you can applied to the utility model.

In the present embodiment, the elastomer 21 has a shape memory function, and the winding for taking sundries tool 10 and receipts The mode of receiving can convenient Automatic-expanding.Operator promotes drive rod 41 by the specimen bag 200 in retracted mode (Fig. 1) and struts Mechanism 20, which releases, to be arrived outside hollow conduit 33, and elastomer 21 has shape memory function and restores automatically, so that by specimen bag 200 Automatically open up (Fig. 2).Those skilled in the art is it is contemplated that can also set the elastic webbing 23 of elastomer 21 and elastic webbing 24 The effect of strutting is realized into linkage.The spreading mechanism 20 that a kind of typical case takes sundries tool 10 has been described in this implementation, Conduit tube component 30 and Handleset 40, in addition, those skilled in the art is it is contemplated that by by S. Utility Spreading mechanism 20 in patent US5465731, US6383197, US8721658 etc. and this implementation, conduit tube component 30 and handle group Part 40 is replaced combination, and the scope of protection of the utility model.

The relevant operation for taking 10 clinical practice of sundries tool can substantially be divided into following several stages：

First stage：Preproduction phase.Take sundries tool inserted into the patient simultaneously via puncture cannula in retracted state Extend to target area.Second stage：Take sundries tool stages of deployment.Operation handle component 40 controls drive rod 41 from near-end to remote End is moved axially relative to hollow conduit 33, hollow is led described until the spreading mechanism 20 and specimen bag 200 are completely exposed Outside pipe 33, elastomer 21 has shape memory function and restores automatically, so that specimen bag 200 be automatically opened up (Fig. 2).The Three stages：Wipe out the sample stage.Sundries tool 10 is taken to navigate to pathological tissues or device under the cooperation such as endoscope unfolded state Below official position, pathological tissues or organ are wiped out by operating scissors and are dropped into specimen bag 200.Fourth stage, sample take Go out the stage.With reference to figure 4-5, first operation handle component 40 takes out spreading mechanism 20 via puncture cannula, while pulls bracing wire 50 Near-end 53 so that slip joint 51 slides and reduces binding ring 52, so that the sack 201 of specimen bag 200 be collapsed.Then draw Dynamic bracing wire 50 takes out specimen bag 200 and its sample contained via puncture cannula or via skin incision.During this, due to Puncture cannula internal diameter or Minimally Invasive Surgery notch are smaller, so when cutting off larger tissue or organ, specimen bag 200 is subject to very big Extruding force.Although various take the structure of sundries tool and application mode to have nothing in common with each other, its function and mainly step substantially phase is used Together.The clinical application method for taking sundries tool 10 of the utility model, also refers to the associated description understanding in US5465731, with It is better understood by the purposes of the utility model.

Fig. 7 depicts a kind of typical specimen bag 100 of the prior art.The specimen bag 100 is usually by monolithic thin film (piece Material) doubling is overlapping is welded, or two panels film (sheet material) is overlapping is welded.The material of film includes but not limited to poly- second Alkene, polyvinyl chloride, polypropylene, nylon, Teflon, thermo-setting elastomer and thermoplastic elastomer (TPE) (such as polyurethane).Film welds The technique connect includes but not limited to heat welding, ultrasonic bonding, high-frequency welding, radiation welding, pulse welding etc..It is a kind of existing In implementation, the specimen bag 100 is welded by the overlapping rear heating of 101 doubling of monolithic polyurethane.The film 101 Wherein one end crimp and weld to form tunnel 111.The film 101 is several along the direction for being approximately perpendicular to the tunnel 111 What axis of symmetry 102 is folded to form the bag face 103 and bag face 104 to overlap substantially.Along the bag face 103 and bag face 104 Overlapping outer edge shape carries out heating welding (abbreviation heat seal) and forms heat seal weld seam 105.The bag face 103, bag face 103 and weldering The restriction bag outlet 110 of seam 105 and the bag body 120 of the closing formed from the sack 110 extension.The tunnel 111 is along institute It is approximate circumferentially distributed to state sack 110.

Fig. 6 describes a kind of welding of representative heat (referred to as heat seal) process of the existing manufacturing technology of specimen bag.Heat-sealing machine 60 It is connected and can vertically moves comprising the pedestal 66 and connected fuselage 67 fixed with ground installation, and with fuselage 67 Dynamic upper heat seal dynamic model 64 and the lower heat seal cover half 65 that fixation is connected with fuselage 67.The heat seal process of the specimen bag 100 can letter Singly it is expressed as, first adjusts heat seal parameter (mainly including heat-seal temperature, heat sealed time and heat seal pressure), then by 101 weight of film Fold and be placed on lower heat seal cover half 65, finally start the heat seal welding that heat-sealing machine completes specimen bag 100.

One those skilled in the art is to be understood that the film heat seal (welding), i.e., in the molten state, film By the polymer segment phase counterdiffusion of heat seal region surface, infiltration, mutually winding so that biplate (or multi-disc) film welding exists Together.With reference to figure 7, bag face 103 and the 104 mutual welding of bag face form the specimen bag 100 for including heat seal seam 105.Fig. 8 is depicted The schematic partial sectional view of 105 optional position of heat seal seam, i.e., it is (thin that described specimen bag 100 finer can be divided into film substrate 131 Film base material 151), transitional region 132 (transitional region 152) and welding area 133 (welding area 153).During film heat seal, Under the action of heat seal pressure, the film in molten condition in heat seal region is set to be calendered extrusion, so as to form the transition Region 132 (transitional region 152).The film thickness of the transitional region 132 (152) is less than the film substrate 131 (151) Thickness.

In general, it is different with failure mode with the heat sealing strength of transitional region according to welding area, can be by the heat seal seam It is divided into underheat conjunction, three classifications of standard heat seal and excessive heat seal.The underheat is closed, i.e. that the surface in heat seal region is melted, join With the thinner thickness of the film of heat seal, failure mode when heat sealing strength is tested is peeled off for welding area, and test result is less than Desired value.The standard heat seal, i.e. the thickness of film that the surface in heat seal region is melted, participating in heat seal is moderate, and fail mould Formula is peeled off for welding area, and heat sealing strength test result reaches desired value.The surface quilt of the excessive heat seal, i.e. heat seal region The thickness of fusing, participation heat seal film is too many, causes the thickness of the transitional region significantly thinning so that transitional region Structural strength be significantly lower than the peel strength of the welding area, this phenomenon is often referred to simply as " root is cut ", and the mould that fails Formula is broken for transitional region, and heat sealing strength test result is less than desired value.In addition in standard heat seal, heat sealing strength test value is claimed most Big heat seal seam is optimal heat seal seam.One those skilled in the art is appreciated that using different heat seal parameters, is determined The heat seal seam 105 is that underheat is closed, standard heat seal or excessive heat seal.

One those of ordinary skill is readily apparent that, the optimal heat seal parameter needed for standard heat seal can be obtained by experiment.Food Product are packed with medical package field, particularly in blood product packaging bag manufacturing field, plastic film heat seal have been carried out greatly Quantity research.It is disclosed the prior art indicate that, usual heat-seal temperature, the comprehensive function of heat seal pressure and heat sealed time determines modeling Expect the heat sealing quality of film, and influence of the heat-seal temperature for heat sealing quality is maximum, and heat seal pressure and heat sealed time are to described The influence of heat sealing quality is relatively small or negligible.

In packaging for foodstuff and medical package field, optimal heat-seal temperature is usually obtained with experimental method.Usually preset One heat sealing strength receives standard (i.e. desired value), then according to heat seal of the test method to test specimen as defined in authoritative standard Intensity is tested, and test result meets that receiving standard then assert that the heat-seal temperature is reasonable temperature or optimum temperature.It is such as right In peelable packaging bag (packaging bag single-handedly torn when easy to use), usually according to American Society Testing and Materials《ASTM F88 flexible barrier material sealing intensity test methods》Tested, dominant failure mode during sample test is the stripping of heat seal region From (Fig. 9), its test result is essentially identical to the true heat sealing strength of sample.And can not for bags of blood, bag filter etc. Packaging bag (packaging bag during use without single-handedly tearing) is peeled off, usually according to American Society Testing and Materials《ASTM F2029 measures flexible material heat seal capability thermal weld code of practice by measuring sealing intensity》Tested, sample test When dominant failure mode peel off (Fig. 9) or transitional region for heat seal region and be broken (Figure 10).The transitional region phenomenon of rupture, Being primarily due to local excessive heat seal causes the thickness of corresponding transitional region significantly thinning, so as to cause local intensity significantly to drop It is low.When failure mode when sample test is broken for transitional region, the true heat seal that its test result is less than sample is strong Degree.But as long as test result, which meets, receives standard, it is reasonable temperature or optimum temperature still to assert the heat-seal temperature.Should Particularly point out, the establishment of the optimum temperature depends primarily upon its test method and receives standard, therefore optimal heat-seal temperature The heat sealing strength for being not intended that its heat seal seam is optimal.When heat sealing strength test failure mode for heat seal region peel off rather than When transitional region is broken, and during heat seal region peeling force maximum, it is known as optimal heat seal, and the heat-seal temperature of its sample is referred to as optimal Heat-seal temperature, more accurately, commonly referred to as this optimum temperature parameter is theoretical optimum temperature or preferable optimum temperature.

When usually obtaining optimal heat-seal temperature with experimental method, not by clamping apparatus error, by heat-sealing film error and environment The factors such as error introduce overall merit.And during actual production manufacture, due to film thickness error, film out-of-flatness, heat seal work folder Have the combined influence of the factor such as error, uneven heating, especially for heat seal seam is longer and the poor material of sealability (such as Thermoplastic elastomer (TPE)), carry out that heat seal (welding) is easy Local residues gap occurs using theoretical optimum temperature, i.e. heat seal seam Sealing integrity is not up to standard.For the product that heat seal seam is longer or heat sealing performance is poor, the sealing integrity of heat seal seam and Heat sealing strength is conflicting, to ensure that sealing integrity generally has to that using excessively heat-sealing, i.e., heat sealing strength must be sacrificed. In packaging for foodstuff and medical package field, its sealing integrity packed is the most critical index must being fulfilled for, and heat sealing strength For secondary index.Packaging for foodstuff and medical package field are usually to meet sealing integrity as most critical index, in this premise bar Relatively low heat-seal temperature is selected under part to obtain preferable heat sealing strength, its optimal heat-seal temperature used is usually above theory most Good temperature.When carrying out heat seal with this optimal heat-seal temperature, most of region of usual same heat seal seam belongs to the standard hot Close and its regional area belongs to the excessive heat seal.

Up to the present, it is disclosed, heat seal for laparoscope dedicated specimen bag described in the utility model research compared with It is few, the experience in packaging for foodstuff and medical package field is usually continued to use during the specimen bag batch heat seal manufacture at present, i.e., using height Heat seal is carried out to obtain sealing integrity and preferable heat sealing strength at the same time in theoretical optimum temperature, inevitably, the shape Into most of region of same heat seal seam belong to the standard heat seal and its regional area belongs to the excessive heat seal.With reference to Fig. 7, Fig. 8 and Figure 11, such as the specimen bag 100 is in heat seal under the conditions of optimal heat-seal temperature, the heat seal seam 105 it is big Subregion belongs to standard heat seal (its heat seal seam figure is referring to Fig. 8), and the regional area of heat seal seam 105 belongs to excessive heat seal (its heat seal seam figure is referring to Figure 11).With reference to figure 11, as it was noted above, the local excessive heat seal causes the transitional region 132 is local significantly thinning, so as to cause local intensity to significantly reduce.

With reference to figure 4-5 and Figure 12-13, as it was noted above, by specimen bag 100 and its contain pathological tissues or organ 70 When taking out via puncture cannula or via skin incision, since puncture cannula internal diameter or Minimally Invasive Surgery notch are smaller, specimen bag 100 It is subject to very big extruding force, is easy to cause specimen bag rupture.And local excessive heat seal causes the intensity of transitional region 132 significantly to drop The low risk of rupture for just greatly adding specimen bag 100, such as Figure 12-13, transitional region 132 is in very big extruding force situation Under.One those skilled in the art is readily apparent that increase film thickness can increase the intensity of specimen bag, but when specimen bag is used for Foregoing when taking in sundries tool, since the size of conduit limits, increase film thickness, which typically results in specimen bag, can not be accommodated in conduit Interior or specimen bag can not be released from conduit.In view of the size-constrained system of film thickness, and be subjected to during specimen bag clinical practice Very big extruding force, therefore the pursuit for specimen bag intensity is no upper limit, intensity is the bigger the better.Simultaneously as sample Bag is commonly used in containing pathological tissues or organ, its sealing integrity is also of equal importance, and all possible increase of any leakage is suffered from The risk of person's inadvertent contamination or the workload of the follow-up cleaning treatment of increase.Obtain the hot bonding method of sealing integrity and obtain optimal The hot bonding method of heat sealing strength is conflicting, up to the present also solves this conflict without good method, and is marked The case ruptured in this bag of clinical practice still happens occasionally.

In order to be better understood from the utility model disclosed embodiment scheme, look back first herein described previously using heating Underheat when welding (heat seal) legal system makes specimen bag is closed, standard heat seal and excessive heat seal situation, and is obtained most using test method(s) The method of big heat sealing strength, optimal heat seal seam and theoretical optimum temperature.One those skilled in the art is it is contemplated that different Material, or the thickness that similar material is different, or same type of material same thickness but different hardness, the maximum heat obtained using experimental method Intensity is closed, the difference of optimal heat seal seam and theoretical optimum temperature is very big, therefore for a certain specific in the utility model The a certain concrete case of material is studied.

During using other welding manners, the main distinction is that the source of welding energy is different, it is welded essential identical.Adopt Manufacture specimen bag with other welding manners, the film that is welded to each other be also in the molten state, film by heat seal region The counterdiffusion of polymer segment phase, the infiltration on surface, mutually winding so that biplate (or multi-disc) film is welded together.Specimen bag Also film substrate, transitional region and welding area can finer be divided into.During film heat seal, in the effect of heat seal pressure Under, the film in molten condition in heat seal region is calendered extrusion, so as to form the transitional region.The transitional region Film thickness be less than the film substrate thickness.Its solder joint also can approximately be divided into deficient welding and (be equal to underheat Close), standard welding (being equal to standard fusion) and excessive welding (being equal to excessive heat seal).One those skilled in the art can be with Understand, under different welding manners, it influences the parameter difference of welding quality, using different welding parameters, determines welding Seam belongs to deficient welding, standard welding or excessive welding.Equally, other known welding manners, can also pass through experimental method The maximum weld strength of acquisition, optimal solder joint and theoretical optimal welding parameter.

Although those skilled in the art is to be understood that specimen bag in different materials, different structures, or difference Welding manner etc. under the conditions of, influence that the factor of its solder joint quality is widely different, but can use identical test method and Receive standard to control its seam quality, while can also use experimental method to obtain associated control parameters.Clearly to illustrate this reality With new thought, relevant term of specimen bag solder joint quality is defined as below at this：

Owe welding：That is the thinner thickness of film that the surface of welding region is melted, participating in fusion, weld strength test When failure mode peeled off for the welding area of specimen bag, and test result is less than desired value.

Standard welding：That is the thickness of film that the surface of welding region is melted, participating in fusion is moderate, and weld strength is surveyed Failure mode during examination is peeled off for the welding area of specimen bag, and test result reaches desired value.

Excessive welding：That is the thickness of film that the surface of welding region is melted, participating in fusion is too many, causes specimen bag The thickness of transitional region between welding area and bag body transition region is significantly thinning, and failure mode when weld strength is tested is Transitional region is broken, and heat sealing strength test result is less than desired value.

Owe fusion weld：Weld strength test shows as owing the weld seam of welding.

Standard fusion weld：Weld strength tests the weld seam for showing as standard welding.

Excessive fusion weld：Weld strength tests the weld seam for showing as excessive welding.

Optimal weld seam：Failure mode when weld strength is tested is peeled off for the welding area of specimen bag, and test result reaches To the weld seam of maximum.Theoretical optimal welding parameter：Obtain welding parameter during optimal weld seam.

As it will be easily appreciated by one skilled in the art that carry out film solder strength test according to ASTM F2029 or ASTM F88 When, need that sample is prepared into the banding test specimen that width is 1in, 25mm or 15mm in advance.It is tested with long weld seam After sample is prepared to multiple banding test specimens, its test result may include and owe welding, standard welding and excessive welding, This defines such long weld seam as mixing weld seam.

Owe welding and standard welding mixing weld seam：At the same time comprising deficient weld and standard weld in same weld seam.

Standard welding and excessive welding mixing weld seam：Standard weld and excessive weld portion are included in same weld seam at the same time Point.

Figure 14-17 illustrate in detail the structure composition of the first embodiment specimen bag 200 of the utility model and take thing process. As it was noted above, the hot bonding method for obtaining sealing integrity and optimal heat sealing strength is conflicting, that is, it is difficult to by optimal Heat seal parametric method controls the heat sealing quality of the specimen bag, its weld seam is also ensured that its weldering while both having possessed sealing integrity Seam is completely in standard hot conjunction state, to obtain optimal heat sealing strength.In the one side of the utility model, the specimen bag 200 using decompressor mode is set, and reduces the extruding force that specimen bag 200 is subject to, and ensures that specimen bag 200 is being subject to very big extruding It will not be ruptured during power.

With reference to shown in figure 14-15, the specimen bag 200 includes the sack 201 that can open and collapse, and from the sack The bag body 202 for the closing that 201 extensions form.The sack 201 is included around the tunnel 211 of sack, to accommodate spreading mechanism 20 and binding 50.Bag body 202 includes the first bag of body 204 for extending from sack 201 and forming, and first bag of body 204 includes film 203 and first weld seam 207, first weld seam 207 is by first bag of bag-shaped body 204 of film 203 thermal synthesis, one entirety；

The specimen bag 200 also includes second bag of body 205, and second bag of body 205 is by first bag of 204 bottom opening of body 231 extensions form, and first bag of body, 204 bottom opening 231 and second bag of 205 open top of body, 251 link position 260 are set Decompressor 206.

The decompressor 206 includes shrink-ring 261, and the shrink-ring 261 is arranged on the outside of link position 260.Institute State shrink-ring 261 and include Nian Jie or welding with 260 connection mode of link position of first bag of body 204 and second bag of body 205. The shrink-ring 261 is made of the rubber ring of elasticity, and in order to facilitate folding shrinking, the diameter of section of shrink-ring 261 is not more than 2mm。

The effect that second bag of body 205 primarily serves be after the shrink-ring 261 is softened, containing section liquid and Pathological tissues, and the space in performing the operation is extremely limited, so can realize effective pressure reduction space to reach, while tries one's best again Few 30 space of occupancy forgoing conduit component.Research has shown that the volume of second bag of body 205 is first bag of 204 volume of body 0.1-0.3 times when can reach preferable balance.

The thin-film material includes but not limited to polyethylene, polyvinyl chloride, polypropylene, nylon, Teflon, thermoset elastic Body (such as silica gel) and thermoplastic elastomer (TPE) (such as polyurethane).

With reference to figure 4, Fig. 5 and Figure 16, when being loaded with the specimen bag of pathological tissues or organ 70 and storing and extract, usual sack It is not completely sealed.Thus a those skilled in the art are it is contemplated that when the specimen bag is stored and extracted, inside it The not compact power of liquid of splendid attire or the extruding force very little being subject to, otherwise liquid by the sack not being fully sealed from specimen bag spray Penetrate.Those skilled in the art is to be understood that when specimen bag is stored and is extracted it contains tissue for specimen bag Body applies non-uniform extruding force.It is finer, as shown in figure 16, when the specimen bag 200 is extracted, the bag body 202 it is straight Bear larger extruding force in the larger region 242 in footpath.In order to ensure leakproofness, first weld seam 207 used specimen bag 200 Degree heat seal mode forms excessive fusion weld or standard welding and excessive welding mixing weld seam.But retouched in detail as foregoing Stated due to excessive heat seal, the transitional region 241 that the first weld seam 207 in the region 242 being relatively large in diameter of bag body 202 closes on by To the risk that rupture is easily produced during very big extruding force.

Simultaneously because specimen bag 200, commonly used in containing pathological tissues or organ 70, its sealing integrity is also equal weight Want, any workload for revealing the risk that may all increase patient's inadvertent contamination or the follow-up cleaning treatment of increase.

As shown in figure 17, when taking out specimen bag 200, the region 242 being relatively large in diameter of the bag body 202 is born larger Extruding force, and extruding force is transmitted to the bottom of first bag of body 204, to first bag of body, 204 bottom opening 231 and second bag 205 open top of body, 251 link position 260 forms the pulling force stretched out.Since link position 260 is open connector Portion, so gradually magnify after under tension, and shrink-ring 261 can be also softened with the increase of extruding force；Part group at this time Knit or organ 70 is entered in second bag of body 205.After being strutted due to shrink-ring 261, second bag of body 205 adds accommodation space, The extruding force of first bag of body 204 is released, and then the first weld seam 207 for reducing the region that first bag of body 204 is relatively large in diameter closes on Transitional region 241 bear larger extruding force, avoid occurring to rupture and leakage, improve the security of operation.Entirely taking out During specimen bag 200, shrink-ring 261 can be with take-off speed, the difference of skin incision size, in fact it could happen that once or more The secondary situation for strutting release extruding force.Due to being realized during taking-up to first bag of 204 depressurization of body, particularly pair When being taken out via skin incision, while also reduce the squeeze pressure to skin incision, effectively alleviate patient pain and Avoid the secondary damage to skin incision.

Although the film 203 of first bag of body 204 is welded together by the way of heating is welded in this example, so And ultrasonic bonding can also be used, high-frequency welding, radiation is welded, the mode such as pulse welding.

Figure 18-21 illustrate in detail the structure composition of the second embodiment specimen bag 300 of the utility model and take thing process, Take other parts of 11 (not shown) of sundries tool in addition to specimen bag 300 identical with first embodiment in the present embodiment, mainly for A kind of preferable technical solution that the decompressor 206 of specimen bag 200 proposes in first embodiment.

Specifically, the specimen bag 300 includes the sack 301 that can open and collapse, and extend from the sack 301 and Into closing bag body 302.The sack 301 is included around the tunnel 311 of sack, to accommodate spreading mechanism 20 and binding 50.Bag body 302, which is included from sack 301, extends first bag of body 304 forming, and first bag of body 304 includes film 303 and the One weld seam 307, first weld seam 307 is by 303 thermal synthesis of film, one bag-shaped first bag of overall body 304；The specimen bag 300 also include second bag of body 305, and second bag of body 305 is extended by first bag of 304 bottom opening 331 of body to be formed, and described first Bag 304 bottom opening 331 of body and second bag of 305 open top of body, 351 link position 360 set decompressor 306.

The decompressor 306 includes pad 361, and the pad 361 is arranged on the link position 360.The weldering Contact 361 closes welding using underheat and forms pad.As it was noted above, underheat, which closes welding, forms weld seam or pad in specimen bag 300 when being subject to larger extruding force, the link position 360 of pad 361 can progressively be separated in a manner of delamination.

The pad 361 along the link position 360 Longitudinal extending into second bag of body 305, while pad 361 It can also be extended laterally along link position 360.The pad 361 includes continuous pad or discontinuous welding contact.The welding The shape of point 361 is including but not limited to rectangle, cylinder, cone, wedge shape or gengon taper.Those skilled in the art It is contemplated that the pad 361 of the decompressor 306 can also be substituted by bonding way, and the intensity class being bonded It is similar to underheat and closes the intensity that welding forms pad, i.e. when being subject to larger extruding force of specimen bag 300, the link position of adhesive spots 360 can progressively be separated in a manner of delamination.

With reference to figure 4, Fig. 5 and Figure 20 are identical with first embodiment, when the specimen bag 300 is extracted, the bag body 302 Bear larger extruding force in the region being relatively large in diameter.In order to ensure leakproofness, first weld seam 307 used specimen bag 300 Degree heat seal mode forms excessive fusion weld or standard welding and excessive welding mixing weld seam.But retouched in detail as foregoing Stated due to excessive heat seal, the transitional region 341 that the first weld seam 307 in the region 342 being relatively large in diameter of bag body 302 closes on by To the risk that rupture is easily produced during very big extruding force.

As shown in figure 21, when taking out specimen bag 300, the region 342 being relatively large in diameter of the bag body 302 is born larger Extruding force, and extruding force is transmitted to the bottom of first bag of body 304, to first bag of body, 304 bottom opening 331 and second bag 305 open top of body, 351 link position 360 forms the pulling force stretched out.Since link position 360 is open connector Portion, so gradually magnify after under tension, and pad 361 also can with the increase of extruding force, in a manner of delamination by Step separates, and portion of tissue or organ 70 are entered in second bag of body 305 at this time.After being separated due to pad 361, second bag of body 305 add accommodation space, release the extruding force of first bag of body 304, and then reduce the area that first bag of body 304 is relatively large in diameter The transitional region 341 that first weld seam 307 in domain 342 closes on bears larger extruding force, avoids occurring to rupture and leaking, improves hand The security of art.During entirely specimen bag 300 is taken out, by setting multiple or continuous pad 361, in fact it could happen that The situation of one or many pad separation release extruding forces.First bag of body 304 is subtracted due to being realized during taking-up Pressure acts on, particularly to being taken out via skin incision when, while also reduce the squeeze pressure to skin incision, it is effective to mitigate The pain of patient and avoid the secondary damage to skin incision.

Figure 22-25 illustrate in detail the structure composition of the 3rd embodiment specimen bag 400 of the utility model and take thing process, Take other parts of 12 (not shown) of sundries tool in addition to specimen bag 400 identical with first embodiment in the present embodiment, mainly for A kind of preferable technical solution that specimen bag 200 proposes in first embodiment.

With reference to shown in figure 22-23, specifically, the specimen bag 400 includes the sack 401, Yi Jicong that can be opened and collapse The sack 401 extends the bag body 402 of the closing formed.The sack 401 is included around the tunnel 411 of sack, to accommodate Spreading mechanism 20 and binding 50.Bag body 402 includes the bag body 402 for extending from sack 401 and forming, and the bag body 402 includes film 403 and first weld seam 404, first weld seam 404 is by film 403 thermal synthesis, one bag-shaped entirety；The film 403 includes Pleated structure 405, when pressure is larger, pleated structure 405 unfolds the capacity of increase bag body 402, realizes decompression.

The pleated structure 405 includes transverse fold structure.The pleated structure 405 includes the first fold face 451 and the Two fold faces 452 and the pad 453 for welding the first fold face 451 and the second fold face 452, set on the bag body 402 Put multiple pleated structures 405.The pad 453 of the pleated structure 405 closes welding manner using underheat and forms pad.

As it was noted above, underheat, which closes welding, forms weld seam or pad in specimen bag 400 when being subject to larger extruding force, weld First fold face 451 of contact 453 and the second fold face 452 can progressively be separated in a manner of delamination.

Extended laterally in the pleated structure 405 of the pad 453 transversely.The pad 453 includes continuous welding Point or discontinuous welding contact.The shape of the pad 453 is including but not limited to rectangle, cylinder, cone, wedge shape or polygon Body taper.Those skilled in the art it is contemplated that the pad 453 can also be substituted by bonding way, and The intensity of bonding is similar to underheat and closes the intensity that welding forms pad, i.e. when being subject to larger extruding force of specimen bag 400, bonding First fold face 451 of point 453a (not shown) and the second fold face 452 can progressively be separated in a manner of delamination.

With reference to figure 4, Fig. 5 and Figure 24 are identical with first embodiment, when the specimen bag 400 is extracted, the bag body 402 Bear larger extruding force in the region 432 being relatively large in diameter.Specimen bag 400 in order to ensure leakproofness, adopt by first weld seam 404 Excessive fusion weld or standard welding and excessive welding mixing weld seam are formed with excessive heat seal mode.It is but such as foregoing detailed Carefully describe due to excessive heat seal, the transitional region that the first weld seam 307 in the region 432 being relatively large in diameter of bag body 402 closes on 431 are subject to easily to produce the risk ruptured during very big extruding force.

As shown in figure 25, when taking out specimen bag 400, the region 432 being relatively large in diameter of the bag body 402 is born larger Extruding force, and extruding force is transmitted to the pleated structure 405 near the region 432 being relatively large in diameter of bag body 402.The fold knot Structure 405 includes the first fold face 451 and the second fold face 452 and welds the first fold face 451 and the second fold face 452 Pad 453.The first fold face 451 and the second fold face 452 that power is stretched with the increase of extruding force are shelled with being layered Progressively separated from mode, whole bag body 402 is elongated, adds accommodation space, releases the region being relatively large in diameter of bag body 402 432 extruding force, and then the transitional region 431 that the first weld seam 404 for reducing the region 432 that bag body 402 is relatively large in diameter closes on is held By larger extruding force, avoid occurring to rupture and leaking, improve the security of operation.Entirely taking out the process of specimen bag 400 In, by setting multiple pleated structures 405, the pad 453 of the pleated structure 405 is likely to occur one or many welding The situation of point separation release extruding force.Due to being realized during taking-up to 402 depressurization of bag body, particularly to via skin When skin notch takes out, while the squeeze pressure to skin incision is also reduced, effectively alleviate the pain of patient and avoid pair The damage of skin incision.

Figure 26-27 illustrate in detail the structure composition of the fourth embodiment specimen bag 500 of the utility model and take thing process, Take other parts of 13 (not shown) of sundries tool in addition to specimen bag 500 identical with 3rd embodiment in the present embodiment, mainly for A kind of preferable technical solution that specimen bag 400 proposes in 3rd embodiment.

With reference to shown in figure 22-23, specifically, the specimen bag 500 includes the sack 501, Yi Jicong that can be opened and collapse The sack 501 extends the bag body 502 of the closing formed.The sack 501 is included around the tunnel 511 of sack, to accommodate Spreading mechanism 20 and binding 50.Bag body 502 includes the bag body 502 for extending from sack 501 and forming, and the bag body 502 includes film 503 and first weld seam 504, first weld seam 504 is by film 503 thermal synthesis, one bag-shaped entirety；The film 503 includes Pleated structure 505, when extruding force is larger, pleated structure 505 unfolds the capacity of increase bag body 502, realizes decompression.

The pleated structure 505 includes vertical pleated structure or oblique pleated structure.The pleated structure 505 includes first 551 and second fold face 552 of fold face and the pad 553 for welding the first fold face 551 and the second fold face 552, institute State and multiple pleated structures 505 are set on bag body 502.The pad 553 of the pleated structure 505 closes welding side using underheat Formula forms pad.

As it was noted above, underheat, which closes welding, forms weld seam or pad in specimen bag 500 when being subject to larger extruding force, weld First fold face 551 of contact 553 and the second fold face 552 can progressively be separated in a manner of delamination.

Extended laterally in the pleated structure 505 of the pad 553 transversely.The pad 553 includes continuous welding Point or discontinuous welding contact.The shape of the pad 553 is including but not limited to rectangle, cylinder, cone, wedge shape or polygon Body taper.Those skilled in the art it is contemplated that the pad 553 can also be substituted by bonding way, and The intensity of bonding is similar to underheat and closes the intensity that welding forms pad, i.e. when being subject to larger extruding force of specimen bag 500, bonding First fold face 551 of point 553a (not shown) and the second fold face 552 can progressively be separated in a manner of delamination.

The present embodiment pleated structure 505 passes through 553 delamination mode spread apart of pad, the appearance of increase bag body 502 Amount, its decompression process is similar with effect with 3rd embodiment, is not repeated herein.

Figure 28-29 illustrate in detail the structure composition of the 5th embodiment specimen bag 600 of the utility model and take thing process, Take other parts of 14 (not shown) of sundries tool in addition to specimen bag 600 identical with 3rd embodiment in the present embodiment, mainly for A kind of preferable technical solution that specimen bag 400 proposes in 3rd embodiment.

With reference to shown in figure 28-29, specifically, the specimen bag 600 includes the sack 601, Yi Jicong that can be opened and collapse The sack 601 extends the bag body 602 of the closing formed.The sack 601 is included around the tunnel 611 of sack, to accommodate Spreading mechanism 20 and binding 50.Bag body 602 includes the bag body 602 for extending from sack 601 and forming, and the bag body 602 includes film 603 and first weld seam 604, first weld seam 604 is by film 603 thermal synthesis, one bag-shaped entirety；The film 603 includes Pleated structure 605, when pressure is larger, pleated structure 605 unfolds the capacity of increase bag body 602, realizes decompression.

The pleated structure 605 includes oblique pleated structure or spiral pleated structure.Spiral pleated structure and oblique fold Effect structure is similar, is specifically described by taking oblique pleated structure as an example：The pleated structure 605 includes the first fold face 651 The pad 653 welded with the second fold face 652 and by the first fold face 651 and the second fold face 652, the bag body 602 It is upper that multiple pleated structures 605 are set.The pad 653 of the pleated structure 605 closes welding manner using underheat and forms weldering Contact, it can also be continuously interrupted that pad 653, which can be,.

It is oblique by setting multiple pleated structures 605 during specimen bag 600 is taken out compared to fourth embodiment Pleated structure 605 underheat close welding form weld seam or pad in specimen bag 600 when being subject to larger extruding force, pad 653 the first fold face 651 and the second fold face 652 can progressively be separated in a manner of delamination, and due to pleated structure 605 It is oblique pleated structure or spiral pleated structure, so 632 (not shown) of region being relatively large in diameter in bag body 602 is first Peeled off with the pad 653 of single point-like, and progressively separated to 605 both ends of pleated structure, complete whole pleated structure 605 Delamination, so start to depressurize earlier in bag body 602, and due to multiple pleated structures 605 spot-shaped weld point 653 into Row is peeled off, and decompression process is gentler, and effect of easing stress is more preferable.

Many different embodiments and example of the utility model are had shown and described.One of this area is common Technical staff, on the premise of the scope of the utility model is not departed from, by it is suitably modified the method and apparatus can be made it is suitable Answering property is improved.Such as simple adaptation is done using the specimen bag heat seal seam disclosed in other utility models, or using not Same technique, for example with pressure parameter, the various combination such as temperature parameter or dwell time.Several kinds of amendment schemes are carried Arrive, for those skilled in the art, other amendment schemes are also what is be contemplated that.Therefore the scope of the utility model should Should be according to accessory claim, while it is understood not to the structure for being shown and being recorded by specification and attached drawing, material or behavior Particular content limited.

Claims (10)

1. a kind of anti-broken specimen bag of Minimally Invasive Surgery decompression, comprising the sack that can be opened and collapse, and formed from sack extension Bag body, it is characterised in that：

The bag body includes the first bag of body formed from sack extension, and first bag of body includes film and the first weld seam, described Film thermal synthesis is closed bag-shaped entirety for one by the first weld seam；

The specimen bag also includes second bag of body, and second bag of body is formed by first bag of body bottom opening extension, and described first Bag body and second bag of body link position set decompressor.

2. specimen bag as claimed in claim 1, it is characterised in that the decompressor includes shrink-ring, and the shrink-ring is set On the outside of the link position.

3. specimen bag as claimed in claim 2, it is characterised in that the shrink-ring and first bag of body and second bag of body Link position connection mode includes bonding or welding.

4. specimen bag as claimed in claim 1, it is characterised in that the decompressor also includes pad, the pad First bag of body and second bag of body link position are arranged at, the pad closes welding using underheat.

5. specimen bag as claimed in claim 4, it is characterised in that the pad is internal along the link position to second bag Extension.

6. specimen bag as claimed in claim 5, it is characterised in that the pad includes continuous pad or is intermittently welded Point.

7. specimen bag as claimed in claim 5, it is characterised in that the welding dot shape includes：Rectangle, cylinder, circle Taper, wedge shape or gengon taper.

8. specimen bag as claimed in claim 1, it is characterised in that the volume of second bag of body is first bag of body volume 0.1-0.3 times.

9. specimen bag as claimed in claim 1, it is characterised in that：The sack is further included around the tunnel of sack, and is worn The binding being located in the tunnel, the binding after tissue specimen is received, can tighten the sack of specimen bag.

10. a kind of anti-broken sample bagging apparatus of Minimally Invasive Surgery decompression, it is characterised in that including as described in any in claim 9 Specimen bag, the specimen bag also include conduit tube component and the Handleset through it, and be connected with the Handleset The spreading mechanism of specimen bag can be strutted, the specimen bag and spreading mechanism are arranged in the conduit tube component and can axially be transported with respect to it It is dynamic；Make the specimen bag and spreading mechanism in conduit tube component to preceding promotion by Handleset operation and stretch out sheath assembly simultaneously Strutted by the spreading mechanism；The spreading mechanism is extracted out and separated with the specimen bag backward with the conduit tube component, the bundle Line is through the conduit tube component.