A kind of medical load-engaging deviceTechnical field
The present invention relates to a kind of surgical instruments to belong to medical instruments field in particular to a kind of medical load-engaging device.
Background technique
Laparoscopic surgery have many advantages, such as the time is short, wound is small, it is painful it is light, restore fast, cured by more and more surgeriesIt is raw to use and be easily accepted by the patient.It, will be micro- by the puncture outfit casing tube being inserted on human skin operative incision in endoscope-assistant surgeryInvasive procedures instrument protrudes into the intraperitoneal sample for being operated, being possible to cut off or take out different size and property in operation, thanSuch as tumor tissues, calculus, foreign matter；The sample of excision how quickly, it is complete and be safely extracted out, be the important ring of successful surgerySection.
Medical load-engaging device is just specific to the operational requirements of laparoscopic surgery and develops, and operation can be cut off object(such as malignant tumour, capsule, purulence excision object and endometrium tissue) is disposable to be taken out, and pathological tissues and health are effectively preventTissue contact, avoids pathology from remaining, and can not only reduce operating difficulty, saves operating time, improves procedure efficiency, and be conducive toPatient postoperative rehabilitation reduces post-surgical infection's risk, saves a large amount of recessive medical expenses for patient.In the prior art, clinicalOn the medical load-engaging device that uses, supporting mechanism generally fixed by modes such as adhesives, elastic deformation connection, point rivetingsOn core bar component.When excision object sample is larger, after sample excision is packed into bag body, outer knob handle, by the open end of bag bodyIt when taking in outer tube, may be easy to cause because pulling force is big, supporting mechanism is detached from core bar component, and sample and bag body are difficult to take out troubleThe intraperitoneal situation of person increases the difficulty and risk of operation, brings many unnecessary pains to patient.Sample is caused to takeThe time is long out, brings inconvenience to doctor and patient.
Summary of the invention
In view of the deficiencies of the prior art, the present invention is intended to provide one kind is reasonable in design, intensity is high, structure is reliable, workSkill is simple, and easy to process and operation medical load-engaging device, the present invention is achieved by the following technical solutions:
A kind of medical load-engaging device, comprising: supporting mechanism；Core bar component, including core bar and fixed cell；In the core barEquipped with an axially extending bore, the central axis of the axially extending bore is overlapped with the central axis of core bar；The fixed cell includesAt least two fixing elements, the fixing element is mutually interference fitted or transition fit, realizes between supporting mechanism and core barBe fixedly connected, at least one groove is equipped in each fixing element, at least one described groove and the supportOne end of mechanism is respectively arranged at least one mutually matched location structure；The fixed cell further includes accommodation groove, describedCore bar is at least partly fixed in the accommodation groove, and positioning column is provided in the accommodation groove, and the core bar is provided with location hole,The positioning column and the location hole cooperate.
The fixed cell includes two fixing elements, and the size and shape of described two fixing elements are all the same；It is describedSupporting mechanism includes two support frames, and the size and shape of described two support frames are all the same.
The mounting post and mounting hole of identical quantity, the mounting post and the peace are equipped in each fixing element simultaneouslyIt is symmetrical one by one to fill central axis of the hole on the fixed cell along the fixing element.
Mounting post and three mounting holes there are three being all provided in described two fixing elements.
It is all provided in each fixing element there are two groove, described two grooves are located in the fixing elementThe two sides of mandrel line, the flute length of described two grooves is equal, groove width is equal, and positional symmetry.
In a groove in described two grooves and one end of the supporting mechanism is respectively arranged at least one mutuallyThe location structure of cooperation.
Described two grooves are the first groove and the second groove, and the location structure in first groove is positioningMuscle, the location structure of described one end of the supporting mechanism are locating slot；And positioning there are two being set in first grooveMuscle, described one end of the supporting mechanism are set there are two locating slot.
One end arranged for interval of described two locating slots in the supporting mechanism, and the distance at described two locating slot intervalsMore than or equal to the length of a locating slot；Position of described two positioning bars in the fixing element with it is described twoThe position of locating slot corresponds.
The fixed cell further includes wire casing, for accommodating sack tightening line.
Medical load-engaging device according to the present invention can effectively prevent supporting mechanism to be detached from core bar component, quickly obtain sample,Patient suffering is reduced, operating time is shortened, improves procedure efficiency.
Detailed description of the invention
Fig. 1 is the state diagram before medical load-engaging device use according to an embodiment of the present invention；
Fig. 2 is the state diagram in medical load-engaging device use according to an embodiment of the present invention；
Fig. 3 is the decomposition diagram according to the medical load-engaging device of the embodiment of the present invention；
Fig. 4 is the decomposition diagram cooperated according to the core bar component and supporting mechanism of the embodiment of the present invention；
Fig. 5 is the decomposition enlarged diagram of fixed cell；
Fig. 6 is the section view of the central axis along sack tightening line wire casing of medical load-engaging device according to an embodiment of the present inventionFigure, in order to clearly show that assembly relation, is omitted parts thereof in figure；
Fig. 7 is the schematic diagram according to the supporting mechanism of the medical load-engaging device of the embodiment of the present invention；
Fig. 8 is the partial enlargement diagram of structure at A in Fig. 7；
Fig. 9 is the supporting mechanism of medical load-engaging device according to an embodiment of the present invention and that core bar component cooperates is recessed along firstParts thereof is omitted in figure in order to clearly show that assembly relation in the axial sectional view of slot；
Figure 10 is the partial enlarged view of structure at B in Fig. 9.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.It is retouched in of the inventionIn stating, it is to be understood that term " proximal end ", " distal end ", "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thicknessDegree ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ",The orientation or positional relationship of the instructions such as " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure or positionRelationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must haveThere is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importanceOr implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed orImplicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, threeIt is a etc., unless otherwise specifically defined.
The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to be used to explain the present invention, and cannot understandFor limitation of the present invention.
As shown in Figure 1 to Figure 3, the medical load-engaging device of the embodiment of the present invention includes bag body 1, supporting mechanism 2, core bar groupPart 3, outer tube 4, handle 5, sack tighten line 6, handle 7.
As shown in Fig. 2, bag body 1 has open end 11 and closed end 12, the inner wall material of bag body 1 is of fine quality to select TPU (i.e. thermoplasticityPolyurethane), the edge of 1 open end 11 of bag body is logical at the annular for forming non-close through hot sealing process after bilayer to 1 interior folding of bag bodyThe one end in road 111, sack tightening line 6 penetrates from the non-close of the circular passage of non-close 111, and logical from the annular of non-closeIt is pierced by another non-close in road 111, the other end at the non-close of circular passage with sack tightening line 6 forms Grapevine knot；One end 211,221 of supporting mechanism 2 penetrates the ring of the non-close from the two of the circular passage of non-close 111 non-close respectivelyIn shape channel 111.Because the entrance of bag body 1 is intraperitoneal, the outer wall of bag body 1 need to be contacted with body fluid, need to have waterproof, moisture proof, oxygenChange the characteristics such as rotten, therefore the outer wall material of bag body 1 is of fine quality selects medical nylon coating film cloth.
With reference to Fig. 3 to Fig. 5, core bar component 3 includes core bar 33 and fixed cell, and the fixed cell includes the first fixed memberPart 31 and the second fixing element 32 are equipped with mounting post and mounting hole in first fixing element 31, the second fixing element 32 simultaneously.In the present embodiment, preferably, the installation hole number in each fixing element is equal with the quantity of mounting post further, theOne fixing element 31 be equipped with 3 mounting posts and 3 mounting holes, accordingly, the second fixing element 32 be equipped with 3 mounting holes and3 mounting posts；The size and shape of first fixing element 31 and the second fixing element 32 are all the same, and two such fixing element is onlyA secondary mold is needed out, has saved production cost, convenient processing and manufacture, and in use process, stress equalization.
As shown in figure 4, core bar component 3 includes core bar 33, the first fixing element 31 and the second fixing element 32, core bar component3 proximal end is equipped with the first fixing element 31, and the second fixing element 32 and the first fixing element 31 cooperate to fix firstThe installation fixing end 23 of support 21, further, the first fixing element 31 and the second fixing element 32 of core bar component 3 are interferenceOr transition fit connection.In first fixing element 31 simultaneously be equipped with mounting post and mounting hole, the second fixing element 32 be equipped withCorresponding mounting hole and mounting post.
Mounting post and the mounting hole symmetric configuration on fixed cell, specifically, 3 mounting posts in the first fixing element 31It is located at the two sides of the first wire casing 34 with 3 mounting holes, positional symmetry, 3 mounting holes in the second fixing element 32 and 3Mounting post is located at the two sides of the first wire casing 34, positional symmetry.Such symmetric design, convenient processing and manufacture, cost are oppositeIt is lower, and in use process, stress equalization.
The peace in mounting post and mounting hole and the second fixing element 32 on 31 one end of the first fixing element of core bar component 3Fill hole and mounting post interference or transition fit connection.The upper limit of mounting hole is less than or equal to the limit inferior ruler of mounting postIt is very little, that is, it is interference fitted；Or the upper limit of mounting hole is greater than the limit inferior size of mounting post, and mounting hole limit inferior size is smallIn the upper limit of mounting post, i.e. transition fit.First mounting hole 311 and the first mounting post 321, the second mounting hole 312 withSecond mounting post 322, third mounting hole 313 and third mounting post 323 correspond, interference or transition fit connection.
Preferably, the cross section of mounting post is circle, and the cross section of mounting hole is polygon.If mounting post and installationThe cross section in hole is circle, and when assembling, mounting hole is the contact in face and face with mounting post, and when interference or transition fit needs to useArtificial hammering, press machine indentation, cold charge or hot charging could cooperate the first fixing element 31 and the second fixing element 32.In order to overcome the above assembly difficulty, in medical load-engaging device of the invention the cross section of mounting post be circle, mounting hole it is transversalFace is polygon, it is preferable that in the present embodiment, the cross section of mounting hole is regular hexagon；Such first fixing element 31 withWhen 32 interference of the second fixing element or transition fit, mounting hole and mounting post are that plane is contacted with the tangent of periphery, appropriate to adjustWhole magnitude of interference can meet installation reliability demand, at normal temperature, not need just to can be carried out assembly by hand by other tools,Simple process, structure are reliable, easy to assembly.
In the present embodiment, preferably, being all provided in the first fixing element 31 and the second fixing element 32 there are two groove,That is the first fixing element 31 is equipped with the first groove 315, the second groove 316, and the first groove 315 and the second groove 316 distinguish positionIn the two sides of 31 central axis of the first fixing element, positional symmetry；Second fixing element 32 is equipped with third groove the 325, the 4thGroove 326, third groove 325 and the 4th groove 326 are located at the two sides of 32 central axis of the second fixing element, position pairClaim；First groove 315, the second groove 316, third groove 325, the 4th groove 326 flute length be equal, groove width is equal；TheOne groove 315, the size of third groove 325 and shape are all the same, and the second groove 316, the size of the 4th groove 326 and shape are equalIt is identical.The installation fixing groove of the first support frame 21, the second groove 316, third is collectively formed in first groove 315, the 4th groove 326The installation fixing groove of the second support frame 22, the size of the first fixing element 31 and the second fixing element 32 is collectively formed in groove 325And shape is all the same.
The fixed cell of core bar component 3 is equipped with several grooves, for accommodating sack tightening line 6 and supporting mechanism 2；ToolBody, the fixed cell of core bar component 3 is equipped with the first wire casing 34, and the first wire casing 34 can be only located in the first fixing element 31,It can also be only located in the second fixing element 32, alternatively, the first wire casing 34 is by the first fixing element 31 and the second fixing element 32The channel being collectively formed.With reference to Fig. 5, in the present embodiment, preferably, there is the 5th groove 319, first in the first fixing elementThere is the 6th groove 329 in fixing element, the first wire casing 34, the first wire casing 34 is collectively formed in the 5th groove 319, the 6th groove 329Central axis be overlapped with the central axis of fixed cell, i.e. 34 half of the first wire casing is located in the first fixing element 31, anotherHalf is located in the second fixing element 32.
For the convenience of describing the present invention and simplifying the description, it in the present embodiment, is based on the orientation or positional relationship shown in the drawings,The one end in 1 direction of close bag body of each component is known as " proximal end ", one end close to 7 direction of handle is known as " distal end ".Sack is receivedIt is remote to core bar 33 along the internal stretch of core bar 33 from the proximal end of core bar 33 after the other end of stringing 6 is pierced by from the first wire casing 34When end, as shown in fig. 6, being used to provide the channel of sack tightening line 6 equipped at least one axially extending bore in core bar 33, this is axially logicalHole is the second wire casing 35, and sack tightens line 6 from one end (i.e. proximal end) of core bar 33 by the second wire casing 35, passes through core bar 33 to coreThe other end (i.e. distal end) of bar 33.In the present embodiment, preferably, being equipped with an axially extending bore in core bar 33, this is axially logicalHole is the second wire casing 35, and the central axis of the axially extending bore is overlapped with the central axis of core bar 33, i.e. in the second wire casing 35Mandrel line is overlapped with the central axis of core bar 33, that is to say, that core bar 33 is hollow circular-tube, and the second wire casing 35 is in core bar 33Hollow cylinder, further, the diameter of the second wire casing 35 are equal to the internal diameter of core bar 33, and the length and core bar of the second wire casing 3533 length is identical, i.e. the inner wall of core bar 33 surrounds to form the second wire casing 35.Sack tightening line 6 is passed through out of second wire casing 35,The other end of core bar 33 is extended to from one end of core bar 33.
At least one location hole for fixed cell to be fixedly connected with 33 phase of core bar is additionally provided on core bar 33, it is correspondingGround, fixed cell are equipped at least one positioning column.In the present embodiment, fixed preferably, core bar 33 is equipped at least twoThe location hole of unit, two location holes are symmetrical arranged.Accordingly, fixed cell is equipped with a pair of of positioning column, two positioning columns pairClaim setting.Specifically, as shown in Figure 4, Figure 5, a positioning column is all had in the first fixing element 31 and the second fixing element 32,The positioning column 318 of first fixing element 31 is inserted into the corresponding location hole 332 of core bar 33 and fixes, the positioning column of the second fixing element 32Being fixed with another the symmetrically arranged location hole of location hole 332 on insertion core bar 33, and then fixed cell is fixed on core barOn 33.Fixed cell further includes accommodation groove 317, and core bar 33 is at least partly fixed in accommodation groove 317, and positioning column is located at accommodation grooveIn 317, core bar 33 can be firmly attached with fixed cell in this way.
First fixing element 31 cooperates with the second fixing element 32 and is fixedly connected with core bar 33 with supporting mechanism 2.It is fixedDepending on two part bond strengths and firmness of the quantity of position column and location hole to meet cooperation.
As shown in fig. 6, handle 7 is equipped with third wire casing 73, third wire casing 73 can be only located on left handle 71, can also only positionIn in right handles 72 or third wire casing 73 is the channel being collectively formed by left handle 71 and right handles 72.In the present embodiment, makeTo be preferred, third wire casing 73 is the hollow cylinder in handle 7, further, central axis and the handle 7 of third wire casing 73Central axis is overlapped, i.e., the half of third wire casing 73 is located on left handle 71, the other half is located in right handles 72.Sack tightens line6 tense after third wire casing 73, itself forms slip-knot and fixes at handle 7.
As shown in Fig. 6 or Fig. 4, storage through-hole 331 is additionally provided on the wall of core bar 33, the other end of sack tightening line 6 is formedAfter slip-knot, end is taken in 331 in the storage through-hole on core bar 33.On the one hand, the end of sack tightening line 6 is free end, is being depositedDuring storage and transportation is defeated, it may knot or enter between outer tube 4 and core bar component 3, or because external force opens slip-knot；Another partyFace, end free, which is scattered, influences the beauty of product, and end is taken in the storage through-hole 331 on core bar 33, and medical load-engaging device is wholeExternal shape is clean and tidy, beautiful.
In conclusion one end of sack tightening line 6 penetrates from the non-close of the circular passage 111 of the non-close of bag body 1,And be pierced by from another non-close in the circular passage of non-close 111, itself forms Grapevine knot at the non-close of circular passage.BagThe other end of mouth tightening line 6 sequentially passes through the first wire casing 34 on fixed cell, the second wire casing 35 in core bar 33, on handle 7Third wire casing 73 after tense, at the end of third wire casing 73 74 itself formed slip-knot, end take in core bar 33 on storageIn through-hole 331.The proximal end of second wire casing 35 connect with the distal end of the first wire casing 34, the distal end of the second wire casing 35 and third wire casing 73Proximal end connection, and the central axis of the first wire casing 34, the second wire casing 35, third wire casing 73 is overlapped, i.e. sack tightening line 6Channel is a linear path.
In the prior art, one end of sack tightening line 6 itself forms fisherman at the non-close of the circular passage of bag body 1Knot, the other end is axially extending along core bar component, forms slip-knot axially adjacent to middle position in core bar component, and be placed in outer tubeIt is interior.Specifically, the outer surface of core bar component 3 is equipped with the limiting slot and multiple fixation holes of sack tightening line 6, and limiting slot is along core barThe axial setting of component 3, sack tighten line 6 in limiting slot, and after needing guiding through fixation hole, could form slip-knot on core bar componentIt is fixed.Before use, because core bar component is entirely located in outer tube, so the slip-knot of sack tightening line 6 is together with core bar componentIn outer tube；In use, when needing to separate bag body from medical load-engaging device, doctor must be by core bar component from housingPipe moves axially to a certain extent, the slip-knot could be exposed outer tube, bag body could be separated by first opening the slip-knot.The present inventionThe medical load-engaging device of design, sack tighten the slip-knot of line 6 always in the outside of outer tube 4, doctor can be needed according to operation withShi Xiekai slip-knot, and then bag body 1 and sack tightening line 6 are separated from medical load-engaging device, be conducive to doctor and quickly takeSample, reduce the risks such as patient suffering and postoperative infection, can effectively shorten sample take-off time, and the first wire casing 34, secondWire casing 35, third wire casing 73 central axis be overlapped, i.e., sack tightening line 6 channel be a linear path, be conducive to bagThe mouth tightening smooth folding and unfolding in channel of line 6.
Core bar component 3 can protrude into outer tube 4, and it is mutually matched fixed to be respectively arranged on core bar component 3 and supporting mechanism 2Position mounting structure；Preferably, the positioning and mounting structure is positioning bar and locating slot.Further, core bar component 3 is equipped withAt least one positioning bar, supporting mechanism 2 are equipped at least one locating slot.In the present embodiment, there are two being set on core bar component 3Positioning bar, sets that there are two locating slots on supporting mechanism 2.
As shown in fig. 7, supporting mechanism 2 includes the first support frame 21, the second support frame 22, the first support frame 21 and secondThe size and shape of support 22 are identical, and when assembly, one of support frame overturning 180 degree is obtained symmetrically arranged anotherSupport；Before overturning, the first locating slot 231, the second locating slot 232 in the installation fixing end 23 of the first support frame 21, with secondTwo locating slots in the installation fixing end of support frame 22 towards identical；After overturning, the first locating slot 231, the second locating slot232 and second support frame 22 installation fixing end on two locating slots direction on the contrary, in this way, in the first fixing element 31The first groove 315 in positioning bar, the positioning bar in the third groove 325 in the second fixing element 32 matches.In this way, twoA support frame only needs out a secondary mold, has saved production cost, convenient processing and manufacture, and in use process, stress is equalWeighing apparatus.When the open end 11 of bag body 1 is tightened, the proximal end 211 of the first support frame 21 is abutted with the proximal end 221 of the second support frame 22.BagWhen the open end 11 of body 1 is unfolded, the proximal end 211 of the first support frame 21 and the proximal end 221 of the second support frame 22 are separated.
As shown in Fig. 7 to Fig. 8, the other end (i.e. installation fixing end) of support frame is linear, is respectively equipped at least oneA locating slot.In the present embodiment, by taking the first support frame 21 of supporting mechanism 2 as an example, in the present embodiment, the first support frame 21Installation fixing end 23 set there are two locating slot: the first locating slot 231, the second locating slot 232.The size and shape of two locating slotsShape is identical, the first locating slot 231, the second locating slot 232 cross sectional shape be opening rectangle or open trapezoid or U-shaped.It is fixedThe thickness of position slot is equal to the thickness of the installation fixing end 23 of the first support frame 21；In the present embodiment, it is preferable that the depth of locating slotLess than or equal to the half of 2 width of supporting mechanism；If clamping slot depth is excessive, at the first support frame 21 right above locating slotWidth is small, intensity is weak, is not able to satisfy tension requirement.The length of locating slot is greater than or equal to one times of clamping slot depth, because of twoLocating slot and two positioning bars correspond；If the length of locating slot is too small, accordingly, the length of positioning bar is smaller, therefore fixedThe intensity of position muscle is weak, and when using the medical load-engaging device, positioning bar has the risk of fracture, and supporting mechanism 2 is caused to be detached from coreBar assembly 3 makes sample and bag body 1 be difficult to take out in abdominal cavity of patients, brings inconvenience to doctor and patient.As shown in figure 8, theA positioning groove 231, the second locating slot 232 arranged for interval in the installation fixing end 23 of supporting mechanism 2, two locating slot intervalsDistance is greater than or equal to a positioning groove length.
The third on the first groove 315, the second fixing element 32 as shown in Fig. 9 to Figure 10, in the first fixing element 31At least one positioning bar is respectively equipped in groove 325, by taking the first groove 315 as an example, in the present embodiment, preferably, firstPositioning bar there are two setting in groove 315: the first positioning bar 3151, the second positioning bar 3152, positioning bar are rectangular shape or openTrapezoidal or U-shaped the protrusion of mouth.As shown in Figure 10, raised height is equal to or less than the depth of locating slot groove.First positioning bar3151, the second positioning bar 3152 arranged for interval in the first groove 315, two bulge clearances are greater than or equal to a projection lengthDistance.The installation fixing end 23 of first positioning bar 3151, the size of the second positioning bar 3152 and shape and the first support frame 21The first locating slot 231, the second locating slot 232 correspond.It is solid to make the installation fixing end 23 of the first support frame 21 installDue to the positioning bar and the first support frame in the groove 315 of the first fixing element 31, and in the groove 315 of the first fixing element 3121 locating slot, which cooperates, to be fixed, i.e. the first locating slot 231 and the first positioning bar 3151, the second locating slot 232 and second are fixedPosition muscle 3152 cooperates.325 size of third groove and shape are identical as the first groove 315, and symmetrical with the first groove 315Setting.On the one hand, the first locating slot 231, the second locating slot 232 are fixed with the first positioning bar 3151, second in groove 315 respectivelyThe position cooperation of muscle 3152 is fixed；On the other hand, the first fixing element 31 and the second fixing element 32 are cooperatively connected and will support machineThe installation fixing end of structure 2, which squeezes, fixes therebetween, any one in above-mentioned two aspect is able to achieve supporting mechanism 2With being fixedly connected for core bar component 3, two aspects combine, and fixed effect is more preferable.In this way, the first groove 315, the 4th groove326 are collectively formed the installation fixing groove of the first support frame 21.Equally, the second groove 316, third groove 325 are collectively formed secondThe installation fixing groove of support frame 22.
Core bar component 3 protrudes into and is located in outer tube 4, and can move axially in outer tube 4, and handle 7 includes left handle71 and right handles 72.The other end of core bar 33 is equipped with handle 7, at least one location hole for handle 7 is additionally provided on core bar 33.In the present embodiment, preferably, setting on core bar 33, there are four the location holes for being used for handle 7, accordingly, left handle 71 and right handles72 all have two the first positioning columns, and two the first positioning columns of left handle 71, two the first positioning columns of right handles 72 are insertedEnter the corresponding location hole of core bar 33 to be cooperatively connected, and then handle 7 is fixed on core bar component 3.Right handles 72 also haveSecond positioning column, left handle 71 have second location hole, the second positioning of the second positioning column insertion left handle 71 of right handles 72Hole and interference or transition fit connection.First positioning column and first positioning hole, the quantity of the second positioning column and second location holeDepending on two part bond strengths and firmness to meet cooperation.On left handle 71 and right handles 72 by the second positioning column withSecond location hole interference or transition fit are fixedly connected on core bar.Third location hole there are two being set on outer tube 4, outer tube 4It is additionally provided with handle 5 outside, handle 5 is symmetrical structure.Handle 5 divides for left handle 51 and right handle 52.Left handle 51 and right handle 52Third positioning column is all had, the third positioning column of right handle 52, the third positioning column of left handle 51 are inserted into the third of outer tube 4Outer tube 4 is fixed between right handle 52 and left handle 51 by location hole to be cooperatively connected.Right handle 52 also has theFour positioning columns, left handle 51 have the 4th location hole, the 4th location hole of the 4th positioning column insertion left handle 51 of right handle 52And interference or transition fit connection.The quantity of positioning column and location hole with meet cooperation two part bond strengths and securelyDepending on degree.
In the present embodiment, before being not used, the supporting mechanism 2 of medical load-engaging device is in collapsed state, and bag body 1 is from closed end12 folded retractings are reduced to open end 11, and supporting mechanism 2, bag body 1, sack tightening line 6 and part core bar components containing are in outer tube 4In.In use, the medical load-engaging device is entered in abdominal cavity of patients by puncture outfit, doctor holds the handle on outer tube 4 on the other handThumb and index finger are respectively put into 5 or so looping pit of handle by hand 5, and the other hand is released forward core bar component 3 by handle 7.After supporting mechanism 2 is completely pushed out of outer tube 4, supporting mechanism 2 restores original state and struts the open end 11 of bag body 1, bag body 1Folded volume come up, and then all expansion of bag body 1.Preferably, bilateral arc can be automatically formed when the expansion of supporting mechanism 2,It can just make bag body 1 in open state without additional instrument auxiliary.
Scope or endoscope are placed in abdominal cavity of patients in advance, doctor can identify by observation display, cut off markThis, then obtains sample with medical load-engaging device, and sample is located in bag body 1.Doctor holds the handle 5 on outer tube 4 on the other hand, willThumb and index finger are respectively put into the looping pit of left and right, and the other hand is pulled back core bar component 3 by handle 7, the peace of supporting mechanism 2Dress fixing end 23 is first incorporated into outer tube 4, and supporting mechanism 2 can be incorporated into completely in outer tube 4 along its bilateral arcuate structure,The line 6 of sack tightening simultaneously is slowly tightened up, to tighten the open end 11 of bag body 1, and then closes bag body 1, and sample is suffered from certainlyThe intraperitoneal taking-up of person.Because the first locating slot 231 of the first support frame 21, the second locating slot 232 respectively with the first fixing element 31The first groove 315 in two positioning bars (the first positioning bar 3151, the second positioning bar 3152) cooperate fix, the second support frameLocating slot on 22 cooperates with two positioning bars in third groove 325 respectively fixes, and the first fixing element 31 is equipped withThe interference or transition fit of mounting post on mounting hole and the second fixing element 32, structure is reliable so that supporting mechanism 2 without departing fromCore bar component 3.
According to the volume size of sample or operation needs, when specimen volume is smaller, doctor can be by medical load-engaging deviceIt is taken out from abdominal incisions together with puncture outfit, then solves the slip-knot of opened mouth tightening 6 other end of line, discharge knot, and then by bagBody and sack tightening line are separated from medical load-engaging device；Or the slip-knot of knot is first opened, knot is discharged, takes medical take awayPart of the object device in addition to bag body 1 and sack tightening line 6, then by bag body 1, sack tightening line 6 and puncture outfit tightening and oneIt rises and is taken out from abdominal incisions；Or the slip-knot of knot is first opened, knot is discharged, takes medical load-engaging device away except bag body 1 and sackThe part other than line 6 and puncture outfit are tightened, the open end 11 of bag body 1 is then tightened by the Grapevine knot that sack tightens line 6, in turnTightening pocket opening tightening line 6 takes out bag body 1 from abdominal incisions.It, can be first by sample in bag when sample is larger, taking-up is had any problemIt is cut into several fritters in body 1 or abdominal incisions are suitably done with flaring processing.
In conclusion medical load-engaging device according to the present invention, simple process, structure are reliable, are easily installed, and can effectively preventOnly supporting mechanism 2 is detached from core bar component 3, quickly obtains sample, reduces patient suffering, can effectively shorten sample take-off time；AndMedical load-engaging device of the invention, structure is simple, at low cost, has preferable use value and promotion potential.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connectIt connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be withIt is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this fieldFor those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be withIt is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature existsSecond feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative ofFirst feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically showThe description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or examplePoint is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are notIt must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in officeIt can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this fieldArt personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examplesIt closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is exampleProperty, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentionedEmbodiment is changed, modifies, replacement and variant.