CN109793485A - A kind of medical conveying device - Google Patents

A kind of medical conveying device Download PDF

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Publication number
CN109793485A
CN109793485A CN201711146275.6A CN201711146275A CN109793485A CN 109793485 A CN109793485 A CN 109793485A CN 201711146275 A CN201711146275 A CN 201711146275A CN 109793485 A CN109793485 A CN 109793485A
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CN
China
Prior art keywords
inner tube
outer tube
handle
fibre
conveying device
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Withdrawn
Application number
CN201711146275.6A
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Chinese (zh)
Inventor
王正斌
王仲元
吴羽纶
周则红
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Beijing Saishute Medical Equipment Co ltd
Original Assignee
Shuo Jian Medical Instruments (shanghai) Co Ltd
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Priority to CN201711146275.6A priority Critical patent/CN109793485A/en
Publication of CN109793485A publication Critical patent/CN109793485A/en
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Abstract

The invention discloses a kind of medical conveying devices comprising: adjustable bending tubular part;Handle;Wherein, the adjustable bending tubular part includes the inner and outer tubes of socket, said inner tube is fixedly connected with the far-end of the outer tube, the taper knob is in said inner tube and the handle is fixedly connected with the near proximal ends of the proximal end of the outer tube or said inner tube, and said inner tube passes through the handle and the handle is stretched out in the proximal end of said inner tube;Said inner tube has the first cavity, and the first cavity of said inner tube is as service aisle;Rigidity of the latter end of the far-end of said inner tube and/or the outer tube on same periphery is of different sizes, and said inner tube and the outer tube can be mutually shifted on long axis direction.Conveying device provided by the invention is combined use with general fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and guide-lighting light beam (fibre) in the industry, can reduce the cost of use of bronchoscope.

Description

A kind of medical conveying device
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of medical conveying device.
Background technique
Endoscope is a kind of Optical devices, is inserted into the internal organs of human body, human body is observed directly outside human body The tissue morphology of internal organs is carried out by the internal organs that other medical instruments can be intervened human body by the service aisle of endoscope Diagnosing and treating, endoscope are widely used in the departments such as division of respiratory disease, Gastroenterology dept., orthopaedics, urological department, ENT dept., gynaecology.With section The raising of technical level is learned, endoscope develops to fujinon electronic video endoscope and ultrasonic electronic from rigid endoscope, flexible endoscope Mirror.
Flexible endoscope is also known as fibre optic endoscopes, is the biography that light source and image are carried out by soft optical fiber It leads.Main species have lung mirror, Gastrointestinal Endoscopes etc..Endoscope is the appearance with optical fiber and grows up, in optical fiber Sight glass divides proximal end (doctor's hand-held manipulation end), distal end (insertion internal organs end) and bending part composition.Bending part is the soft of sealing Property casing, inner cavity include two kinds of optical fiber light beams (fibre): light guide bundles (fibre) and coherent fiber bundle (fibre), be respectively used to take a picture and at Picture.There are also service aisles for usual endoscope, to be inserted into other medical instruments.
During diagnosing or treating pulmonary tuberculosis, the bronchial endoscope (hereinafter referred to as bronchoscope) of division of respiratory disease need to be used The intervention means such as inspection or biopsy, conveying drug therapy are carried out to the pulmonary tuberculosis target area position of bronchus distal end.But at present still Inspection or biopsy, the conveying device for conveying drug therapy are carried out without the pulmonary tuberculosis target area position suitably to bronchus distal end.
Summary of the invention
The present invention provides a kind of medical conveying device, which includes outer tube and inner tube, the work that inner tube provides Channel can stretch through fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and leaded light light beam (fibre), biopsy The instruments such as pincers, drug injection needle.The conveying device has the distal end of adjustable bending simultaneously, therefore by the conveying device and can wear Fiber coherent fiber bundle (fibre) in the service aisle of the conveying device and guide-lighting light beam (fibre) or electrofax beam (fibre) and Guide-lighting light beam (fibre) is directed to enter in lung's target region, and pulmonary tuberculosis target hole region is diagnosed or treated.This hair The conveying device of bright offer and general fiber coherent fiber bundle (fibre) in the industry and leaded light light beam (fibre) or electrofax beam (fibre) and Guide-lighting light beam (fibre) is combined use, can reduce the cost of use of bronchoscope, thus be conducive to effective popularization of the technology, And reduce diagnosis or the medical expense of patient.
In the present invention, proximal end refers to the one end of conveying device close to performer, distally refers to conveying device far from performer's One end.
Technical scheme is as follows:
Adjustable bending tubular part, the adjustable bending tubular part include the inner and outer tubes of socket, said inner tube and described The far-end of outer tube is fixedly connected;
Handle;The proximal end or institute that the taper knob is on the adjustable bending tubular part and the handle is with the outer tube The proximal end for stating inner tube is fixedly connected, and said inner tube passes through the handle and the handle is stretched out in the proximal end of said inner tube;And And
Said inner tube has the first cavity, and the first cavity of said inner tube is as service aisle;
Rigidity of the latter end of the far-end of said inner tube and/or the outer tube on same periphery is of different sizes, described Inner tube and the outer tube can be mutually shifted on long axis direction.
Said inner tube and the outer tube being mutually shifted on long axis direction, can make the mutual under tension of inner and outer tubes And thrust can make rigidity near at the distal tip of inner and outer tubes due to the presence of stiffness difference on periphery The position distortions that small position distortions want specific stiffness big are big, so that the distal end of the adjustable bending tubular part, which reaches, adjusts curved effect Fruit.
The service aisle can be used for making fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and At least one of in guide-lighting light beam (fibre), biopsy forceps or seal wire passes through to target area, can also be in transmitting fiber tow picture Conduct after beam (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and guide-lighting light beam (fibre), biopsy forceps or seal wire are exited Convey the channel of drug.
In one embodiment, the medical conveying device further includes connector, the proximal end of the connector and said inner tube It is fixedly connected, there is the second cavity, the second cavity of the connector and the first cavity of said inner tube inside the connector Perforation.The connector is set at the most proximal end of the medical conveying device, is used for and fiber coherent fiber bundle (fibre) and guide-lighting light Beam (fibre) or electrofax beam (fibre) and other medical instruments such as guide-lighting light beam (fibre) or biopsy forceps, seal wire, cartridge syringe It is attached.
In one embodiment, rigidity of the latter end of the far-end of said inner tube and/or the outer tube on same periphery It is of different sizes specifically: the wall thickness on the same periphery of the latter end of the far-end of said inner tube and/or the outer tube is inconsistent. The inconsistent structure of same periphery wall thickness, there is the differences of rigidity on same periphery, can make inner and outer tubes Far-end the latter end position distortions that nearby the small position distortions of rigidity want specific stiffness big it is big so that the adjustable bending pipe The distal end of shape component, which reaches, adjusts curved effect.
The inconsistent wall thickness in one section of cambered surface of wall thickness on periphery is less than or greater than the wall thickness on remaining periphery, Or the wall thickness on whole circumference face gradually changes.
In another embodiment, the latter end of the far-end of said inner tube and/or the outer tube is rigid on same periphery It spends of different sizes specifically: have at least one on the same periphery of the latter end of the far-end of said inner tube and/or the outer tube A joint-cutting.Cambered surface rigidity on same periphery with joint-cutting is smaller than the cambered surface rigidity of seemless, therefore the portion with joint-cutting Position is easier to deform compared with the position of seemless.So set, when inner and outer tubes relatively move, the cambered surface phase with joint-cutting It is big to the arc deformation of seemless, to be deformed, it thus can realize the curved effect of tune of adjustable bending tubulose distal end.It is described The joint-cutting of inner tube and the outer tube can be one or more.
In one embodiment, one of them of inner and outer tubes has joint-cutting, another seemless, and the pipe of seemless The rigidity of the material of material is less than the tubing for having the material of joint-cutting.For example, inner tube has a joint-cutting, if outer tube seemless, then inner tube Rigidity be greater than outer tube rigidity.
In one embodiment, the second connector is additionally provided on the handle, second connector has third cavity, Interstitial channels between the third cavity and said inner tube and the outer tube penetrate through connection.In this way, second connector and The pore channel is formed the channel of drug injection.
About the material of said inner tube and the outer tube, the distal end of at least inner and outer tubes is using with shape memory function The material of energy is made.
Preferably, the end of the distal outer tube is nearby equipped with the safeguard structure for preventing scratching physiological tissue, the protection The implementation of structure can be and be covered with elastomer near the end of distal outer tube, or the end of distal outer tube is nearby added Work is at round and smooth shape.
In another embodiment, a part of the handle covers on the outer tube, and another part covers in said inner tube; The middle handle is equipped with slide unit, and the proximal end of the handle is fixedly connected with the proximal end of said inner tube, the sliding part Part is fixedly connected through the handle and with the proximal end of the outer tube, and the slide unit can move and draw on long axis direction Send out outer tube described on long axis direction relative to the movement of said inner tube;Or, the proximal end of the distal end of the handle and the outer tube It is fixedly connected, the slide unit is fixedly connected with the proximal end of said inner tube.
In another embodiment, the far-end of the handle is set on the outer tube, while its remaining part of the handle Divide and is set in said inner tube;The handle includes turn component and track component, the proximal end of the outer tube and the handle Distal medial or outside are fixedly connected, and the track component is set in said inner tube, the turn component and the orbit portion Part screw-driven formula connects and runs through the handle, rotates the turn component, the track component can be made in long axis direction Upper movement, and then said inner tube is driven to move along long axis direction;Or, the proximal end of the handle and the proximal end of said inner tube are fixed Connection, the track component are fixedly connected with the proximal end of the outer tube.
Compared with prior art, beneficial effects of the present invention are as follows:
A kind of medical conveying device provided by the invention, the conveying device include outer tube and inner tube, the work that inner tube provides Making channel can stretch through fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and leaded light light beam (fibre), work Examine the medical instruments such as pincers, drug injection needle.The conveying device has the distal end of adjustable bending simultaneously, therefore can pass through the conveying device And it is arranged in fiber coherent fiber bundle (fibre) in the service aisle of the conveying device and guide-lighting light beam (fibre) or electrofax beam (fibre) and guide-lighting light beam (fibre), is directed to enter in lung's target region, and pulmonary tuberculosis target hole region is diagnosed or controlled It treats.Conveying device provided by the invention and general fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam in the industry (fibre) and guide-lighting light beam (fibre) are combined use, the cost of use of bronchoscope can be reduced, to be conducive to having for the technology Effect is promoted, and reduces diagnosis or the medical expense of patient.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the medical conveying device of the embodiment of the present invention one;
Cross section signal Fig. 2 inconsistent for the outer tube or inner tube wall thickness of the adjustable bending tubular part of the embodiment of the present invention one Figure;
Fig. 3 is the inconsistent stereoscopic schematic diagram of the outer tube wall thickness of the adjustable bending tubular part of the embodiment of the present invention one;
Fig. 4 is the curved effect diagram one of tune of the adjustable bending tubular part of the embodiment of the present invention one;
Fig. 5 is the curved effect diagram two of tune of the adjustable bending tubular part of the embodiment of the present invention one;
Fig. 6 is that the inner tube of the adjustable bending tubular part of the embodiment of the present invention one has the schematic diagram of joint-cutting;
Fig. 7 is that the outer tube of the adjustable bending tubular part of the embodiment of the present invention one has the schematic diagram of joint-cutting;
Fig. 8 all has the schematic diagram of joint-cutting for the outer tube and inner tube of the adjustable bending tubular part of the embodiment of the present invention one;
Fig. 9 is that the medical conveying device of the embodiment of the present invention one enters the schematic diagram of pulmonary tuberculosis target region;
Figure 10 is the enlarged drawing in the area Tu9Zhong C;
Figure 11 is the partial structure diagram of the medical conveying device of the embodiment of the present invention two;
Figure 12 is the partial structure diagram of the medical conveying device of the embodiment of the present invention three;
Figure 13 is the structural schematic diagram of the medical conveying device of the embodiment of the present invention four.
Specific embodiment
Below with specific embodiment, the present invention will be further described.
In the present invention, proximal end refers to that medical conveying device of the invention close to one end of performer, distally refers to of the invention The one end of medical conveying device far from performer.
Embodiment one
Referring to Figure 1, Fig. 1 is the structural schematic diagram of the medical conveying device of the embodiment of the present invention one.
The medical conveying device 1 of the present embodiment includes adjustable bending tubular part 10, handle 20 and connector 30, adjustable bending pipe Shape component 10 is made of inner tube 11 and outer tube 12, and inner tube 11 is threaded through 12 the inside of outer tube, and the distal end of inner tube 11 and outer tube 12 End is fixedly connected, and the rigidity on the same periphery of the distal end latter end of inner tube 11 or outer tube 12 is of different sizes, while inner tube 11 and outer tube 12 can be mutually shifted on long axis direction, 12 proximal end of outer tube of the distal end of handle 20 and adjustable bending tubular part 10 is solid Fixed connection, connector 30 are fixedly connected with the proximal end of the inner tube 11 of adjustable bending tubular part 10, and second inside connector 30 is empty The first cavity in chamber and inner tube 11 penetrates through, and the first cavity of inner tube 11 forms service aisle.
In the present embodiment, on the same periphery of the distal end latter end of inner tube 11 or outer tube 12 stiffness difference a kind of realization Mode can be inconsistent for the wall thickness on the same periphery near at the distal tip of inner tube or outer tube, as shown in Fig. 2, tube body The wall thickness of 101 cambered surfaces is less than the wall thickness of 102 cambered surfaces;Certainly alternatively, the wall thickness on whole circumference face is also possible to gradually Variation.The inconsistent structure of the periphery wall thickness of such setting can make interior there is the difference of rigidity on periphery The position distortions that the small position distortions of the distal end latter end rigidity of pipe 11 and outer tube 12 want specific stiffness big are big, so that adjustable bending pipe The distal end of shape component 10, which reaches, adjusts curved effect.
Referring now to Fig. 3, the wall thickness at the cambered surface 102 of outer tube 12 is greater than the wall thickness at the cambered surface 101 of outer tube 12, and inner tube 11 is worn It is located at 12 the inside of outer tube, is fixedly connected at inner tube 11 and the distal tip of outer tube 12.Wherein:
When inner tube 11 is relative to the distally A movement of outer tube 12, inner tube 11 can apply one to the distal end side A to outer tube 12 To thrust, outer tube 12 is greater than the wall thickness at cambered surface 101 due to the wall thickness at cambered surface 102, and the rigidity at cambered surface 102 is greater than Rigidity at cambered surface 101, when by thrust, the deformation at deformation ratio cambered surface 102 at cambered surface 101 is big, therefore can produce Raw tune curved effect in distal end as shown in Figure 4;
When inner tube 11 is relative to the proximally direction B movement of outer tube 12, inner tube 11 can apply the proximally side B to outer tube 12 To pulling force, due to the rigidity at the cambered surface 102 of outer tube 12 be greater than outer tube 12 cambered surface 101 at rigidity, under tension effect When, the deformation at deformation ratio cambered surface 102 at cambered surface 101 is big, therefore can generate the curved effect of tune of such as Fig. 5.
Other than embodiment of above, the wall thickness being also possible on the same periphery of the distal end latter end of inner tube 11 is different It causes;Wall thickness either on the same periphery of the distal end latter end of inner tube 11 and outer tube 12 is all inconsistent.It is designed in this way combination, all It is the difference in order to realize rigidity on the same periphery of 10 distal end latter end of adjustable bending tubular part, to realize adjustable bending tubulose The distal end of component 10, which reaches, adjusts curved effect.
In the present embodiment, the another kind of stiffness difference is real on the same periphery of the distal end latter end of inner tube 11 or outer tube 12 Existing mode can have at least one joint-cutting for the distal end latter end of inner tube or outer tube.As shown in fig. 6, the distal end latter end of inner tube 11 has Four joint-cuttings 111, on the same periphery of inner tube 11, cambered surface rigidity of the cambered surface rigidity with joint-cutting 111 than seemless It is small, therefore the position with joint-cutting 111 is easier to deform compared with the position of seemless.Inner tube 11 is threaded through 12 the inside of outer tube, It being fixedly connected at inner tube 11 and the distal tip of outer tube 12, the rigidity of the material of outer tube 12 is less than the rigidity of the material of inner tube 11, The setting of rigidity can be by selecting different materials or different wall thickness to realize.So set, 12 phase of inner tube 11 and outer tube When to movement, the cambered surface with joint-cutting 111 of inner tube 11 is big with respect to the arc deformation of seemless, thus be deformed, while The unidirectional deformation of the lesser outer tube 12 of rigidity can be caused, thus can realize the curved effect of tune of 10 distal end of adjustable bending tubular part Fruit.Or it is also possible to the tool of outer tube 12 there are three joint-cutting 121, inner tube 11 is threaded through 12 the inside of outer tube, inner tube 11 and outer tube 12 It is fixedly connected at distal tip, the rigidity of inner tube 11 is less than the rigidity of outer tube 12, as shown in Figure 7.Or it is also possible that inner tube 11 Or the implementation of stiffness difference can also be that outer tube 12 and inner tube 11 all have on the same periphery of the distal end latter end of outer tube 12 It after thering is corresponding joint-cutting, inner tube 11 to combine with outer tube 12, then is fixedly connected at distal tip, as shown in Figure 8.So set Meter combination, is provided to the difference of rigidity on the periphery for realizing 10 distal end latter end of adjustable bending tubular part, to realize adjustable The distal end of syphon shape component 10, which reaches, adjusts curved effect.
The implementation of stiffness difference can be on same periphery near at inner tube 11 or the distal tip of outer tube 12 It is to add the particle of different hardness or increase the other ways such as muscles and bones, no longer repeats one by one herein.
The relative movement of the inner tube 11 of adjustable bending tubular part 10 and outer tube 12 can be realized by handle 20 and connector 30, The distal end of handle 20 is fixedly connected with the proximal end of the outer tube 12 of adjustable bending tubular part 10, is extended through the inner tube 11 in outer tube 12 Proximal end is arranged in the cavity of handle 20, and is stretched out from the proximal end of handle 20, and the proximal end of inner tube 11 is fixedly connected with connector 30. Movement of the connector 30 on long axis direction can cause movement of the inner tube 11 on long axis direction, so that adjustable bending tubulose The inner tube 11 and outer tube 12 of component 10 relatively move, the final curved function of tune of realizing adjustable bending tubular part 10.
Conveying device 1 and general fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) in the industry And guide-lighting light beam (fibre) 2 is used in combination, and can enter the pulmonary tuberculosis target region of 3 distal end of bronchus, as shown in Figure 9.
Figure 10 is that the amplification of region C in Fig. 9 is shown, fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax Beam (fibre) and guide-lighting light beam (fibre) 2 can be extended through the service aisle of conveying device 1, i.e., in the cavity of the inner tube 11 of conveying device 1. The cavity of inner tube 11 forms the service aisle of conveying device 1, can as required, by fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and guide-lighting light beam (fibre) 2 or biopsy forceps, seal wire etc. are extended through in conveying device 1, with this Mode reaches pulmonary tuberculosis target region and is diagnosed.After reaching pulmonary tuberculosis target region, by fiber coherent fiber bundle (fibre) and guide-lighting light Beam (fibre) or electrofax beam (fibre) and guide-lighting light beam (fibre) 2 are taken out from the service aisle of conveying device 1, by drug injection Device and the connector of conveying device 1 are attached, and drug can be entered pulmonary tuberculosis target by the service aisle injection of conveying device 1 Region, to realize the treatment to pulmonary tuberculosis target region.
Embodiment two
Referring to Figure 11, the inner tube 11 of the adjustable bending tubular part 10 of the medical conveying device of the present embodiment and outer tube 12 Relative movement can be realized by another structure of handle 20.Handle 20 includes slide unit 21, and slide unit 21 extends through the handle 20 and along perpendicular to long axis direction be arranged, the proximal end of the inner tube 11 of the proximal end and adjustable bending tubular part 10 of handle 20 is fixed Connection, and inner tube 11 is stretched out except handle 20, and the proximal end of the outer tube 12 of slide unit 21 and adjustable bending tubular part is fixed to be connected It connects, connection type concretely clip, gluing etc., as shown in figure 11.Movement of the slide unit 21 on long axis direction, can cause Outer tube 12 moves on long axis direction, so that the inner tube 11 of adjustable bending tubular part 10 and outer tube 12 relatively move, finally Realize curved effect of tune of adjustable bending tubular part 10.Another interchangeable embodiment is also possible to: the distal end of handle 20 It is fixedly connected with the proximal end of the outer tube 12 of adjustable bending tubular part 10, the inner tube 11 of slide unit 21 and adjustable bending tubular part 10 Near proximal ends be fixedly connected.
Embodiment three
Referring to Figure 12, present embodiment illustrates the connection types of another adjustable bending tubular part and handle.This implementation The handle 20 of the medical fixed device of example includes turn component 22 and track component 23, and 23 sets of track component in inner tube 11, revolve Dynamic component 22 is threadedly coupled and along the direction perpendicular to long axis through the handle 20 with track component 23.The distal end of handle 20 It is fixedly connected with the proximal end of the outer tube 12 of adjustable bending tubular part 10, the inner tube 11 of track component 23 and adjustable bending tubular part 10 It is fixedly connected, connection type concretely clip, gluing etc..Turn component 22 is connect with 20 inlay card of handle, and and track component 23 matchings are threadedly coupled, as shown in figure 12.Turn component 22 is rotated, track component 23 may make to move on long axis direction, into And cause inner tube 11 and moved on long axis direction, so that the inner tube 11 of adjustable bending tubular part 10 and the opposite shifting of outer tube 12 It is dynamic, final curved effect of tune for realizing adjustable bending tubular part 10.Another embodiment be also possible to handle 20 proximal end and The near proximal ends of the inner tube 11 of adjustable bending tubular part 10 are fixedly connected, the outer tube of track component 23 and adjustable bending tubular part 10 12 proximal end is fixedly connected.
The present invention realizes that the mode that the inner tube 11 of conveying device 1 and outer tube 12 relatively move can also be embodiment one, reality Other way except applying shown in example two and embodiment three, no longer repeats one by one herein.
Example IV
Such as Figure 13, the present embodiment conveying device 1 includes adjustable bending tubular part 10, handle 20 and connector 30, adjustable bending Tubular part 10 is made of inner tube 11 and outer tube 12, and inner tube 11 is threaded through 12 the inside of outer tube, the distal end end of inner tube 11 and outer tube 12 It is fixedly connected at end, the rigidity on the same periphery of distal end latter end of inner tube 11 or outer tube 12 is of different sizes, inner tube 11 and outer tube 12 can be mutually shifted on long axis direction, and handle 20 is fixedly connected with the proximal end of adjustable bending tubular part 10, connector 30 and can The inner tube 11 of syphon shape component 10 is adjusted to be fixedly connected, the second cavity of connector 30 and the first cavity of inner tube 11 penetrate through, inner tube 11 the first cavity forms service aisle.In the present embodiment, handle 20 is additionally provided with the second connector 24, the second connector 24 Cavity and inner tube 11 and outer tube 12 between cavity clearance perforation, the service aisle of drug injection can be formed by being arranged such.It can Fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and guide-lighting light beam (fibre) are worn by connector 30 It protrudes into the cavity of inner tube 11, conveying device 1 and fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) And guide-lighting light beam (fibre) is used in combination, and after reaching pulmonary tuberculosis target hole region, connects cartridge syringe by the second connector 24, Thus it may be implemented under visibility status and conveying drug therapy carried out to pulmonary tuberculosis target hole region.
The internal diameter and wall thickness of the inner tube 11 of medical conveying device 1 of the invention are according to itself characteristic and fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and other medical instruments such as leaded light light beam (fibre) or biopsy forceps Outer diameter determines, i.e., under the premise of being supplied to the service aisle that other medical instruments stretch through, selects small caliber as far as possible, from And obtain adjustable bending tubular part thin as far as possible.As an implementation, the internal diameter of inner tube 11 can be 0.1~2mm, inner tube 11 Wall thickness can be 0.01~0.2mm, the internal diameter of the outer tube 12 of conveying device 1 must be greater than the wall thickness of the outer diameter of inner tube 11, outer tube 12 It can be 0.01~0.2mm.In addition, the present invention also reduces outer tube using the first cavity of inner tube 11 as general service aisle 12 internal diameter, and then reduce the radial dimension of outer tube 12 and adjustable bending tubular part.
To sum up, medical conveying device of the invention includes: adjustable bending tubular part, handle, further includes in preferred embodiment Connector.Adjustable bending tubular part includes inner and outer tubes, and inner tube is threaded through inside outer tube, at the distal tip of inner and outer tubes It is fixedly connected, the rigidity on the same periphery of distal end latter end of inner tube or outer tube is of different sizes, and inner and outer tubes are in long axis direction On can be mutually shifted.Inner and outer tubes being mutually shifted on long axis direction, can make the mutual under tension of inner and outer tubes and Thrust, due to the presence of stiffness difference on periphery, the position that the distal end latter end rigidity of inner and outer tubes can be made small It is big to deform the position distortions for wanting specific stiffness big, so that the distal end of adjustable bending tubular part, which reaches, adjusts curved effect.Handle and can The proximal end of outer tube or the proximal end of inner tube for adjusting syphon shape component are fixedly connected, and handle can drive being mutually shifted for inner and outer tubes. Connector is fixedly connected with the inner tube of adjustable bending tubular part, and the cavity of connector and the first cavity of inner tube penetrate through, connector Cavity and the first cavity of inner tube service aisle is collectively formed.The connector of medical conveying device of the invention is set to conveying At the most proximal end of device, it is used for and fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and guide-lighting light Other medical instruments such as beam (fibre) or biopsy forceps, seal wire, cartridge syringe are attached.
In addition, in one embodiment, the cavity clearance between inner and outer tubes can form the second service aisle, hand Handle is additionally provided with the second connector, can be used for being attached with other medical instruments such as cartridge syringe, the second connector Cavity clearance perforation between cavity and inner and outer tubes is used for drug injection.
On the same periphery of the distal end latter end of inner tube or outer tube a kind of implementation of stiffness difference can for inner tube and/or Wall thickness on the same periphery of the distal end latter end of outer tube is inconsistent.Wall thickness on periphery is inconsistent in one section of cambered surface Wall thickness is less than or greater than the wall thickness on remaining periphery or the wall thickness on whole circumference face gradually changes.
On the same periphery of the distal end latter end of inner tube or outer tube another implementation of stiffness difference can for inner tube or Nearby at least one joint-cutting or the proximate distal ends of inner and outer tubes have joint-cutting at the distal tip of outer tube.Inner tube or outer tube Joint-cutting can be one or more.
In one embodiment, one of them of inner and outer tubes has joint-cutting, another seemless, the pipe of seemless The rigidity of material is less than the tubing for having joint-cutting.The joint-cutting of inner and outer tubes can be one or more.
The adjustable bight portion of at least distal end of inner and outer tubes is using made from the material with shape memory function.
The end of distal outer tube nearby has the safeguard structure for preventing scratching physiological tissue, can be at the end of distal outer tube End is nearby covered with elastomer, or is nearby processed into round and smooth shape to the end of distal outer tube.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (11)

1. a kind of medical conveying device characterized by comprising
Adjustable bending tubular part, the adjustable bending tubular part include the inner and outer tubes of socket, said inner tube and the outer tube Far-end be fixedly connected;
Handle;The taper knob on the adjustable bending tubular part and the proximal end of the handle and the outer tube or it is described in The proximal end of pipe is fixedly connected, and said inner tube passes through the handle and the handle is stretched out in the proximal end of said inner tube;Also,
Said inner tube has the first cavity, and the first cavity of said inner tube is as service aisle;
Rigidity of the latter end of the far-end of said inner tube and/or the outer tube on same periphery is of different sizes, said inner tube It can be mutually shifted on long axis direction with the outer tube.
2. medical conveying device as described in claim 1, which is characterized in that the service aisle is for making fiber coherent fiber bundle It is (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and leaded light light beam (fibre), biopsy forceps, at least one of in seal wire Kind passes through to target area, and is also used in fiber coherent fiber bundle (fibre) and guide-lighting light beam (fibre) or electrofax beam (fibre) and guide-lighting light beam (fibre), biopsy forceps, seal wire exit after as the channel for conveying drug.
3. medical conveying device as described in claim 1, which is characterized in that the medical conveying device further includes connector, The connector is fixedly connected with the proximal end of said inner tube, has the second cavity inside the connector, and the of the connector Two cavitys and the first cavity of said inner tube penetrate through.
4. medical conveying device as described in claim 1, which is characterized in that the far-end of said inner tube and/or the outer tube Rigidity of the latter end on same periphery it is of different sizes specifically: the latter end of the far-end of said inner tube and/or the outer tube Same periphery on wall thickness it is inconsistent.
5. medical conveying device as claimed in claim 4, which is characterized in that wall thickness on the same periphery is inconsistent can Being less than or greater than the wall thickness on remaining periphery or the wall thickness on whole circumference face for the wall thickness in one section of cambered surface is gradually to become Change.
6. medical conveying device as described in claim 1, which is characterized in that the far-end of said inner tube and/or the outer tube Rigidity of the latter end on same periphery it is of different sizes specifically: the latter end of the far-end of said inner tube and/or the outer tube Same periphery on have at least one joint-cutting.
7. medical conveying device as claimed in claim 6, which is characterized in that one of them of said inner tube and the outer tube have Joint-cutting, another seemless, and the rigidity of the tubing of seemless are less than the tubing for having joint-cutting.
8. medical conveying device as described in claim 1, which is characterized in that the second connector is additionally provided on the handle, Second connector has third cavity, the interstitial channels perforation between the third cavity and said inner tube and the outer tube Connection, forms the channel of drug injection.
9. medical conveying device as described in claim 1, which is characterized in that the end of the distal outer tube is nearby equipped with and prevents Scratch the safeguard structure of physiological tissue.
10. medical conveying device as described in claim 1, which is characterized in that a part of the handle is covered in the outer tube On, another part covers in said inner tube;The middle handle is equipped with slide unit, the proximal end of the handle and said inner tube Proximal end is fixedly connected, and the slide unit is through the handle and is fixedly connected with the proximal end of the outer tube, the sliding Component can move on long axis direction and cause the outer tube on long axis direction relative to the movement of said inner tube;Or, described The distal end of handle is fixedly connected with the proximal end of the outer tube, and the slide unit is fixedly connected with the proximal end of said inner tube.
11. medical conveying device as described in claim 1, which is characterized in that the far-end of the handle is set in described outer Guan Shang, while the rest part of the handle is set in said inner tube;The handle includes turn component and track component, institute The proximal end for stating outer tube is fixedly connected with the distal medial of the handle or outside, and the track component is set in said inner tube, The turn component connect with the track component screw-driven formula and runs through the handle, rotates the turn component, can It moves the track component on long axis direction, and then said inner tube is driven to move along long axis direction;Or, the handle is close End is fixedly connected with the proximal end of said inner tube, and the track component is fixedly connected with the proximal end of the outer tube.
CN201711146275.6A 2017-11-17 2017-11-17 A kind of medical conveying device Withdrawn CN109793485A (en)

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Application publication date: 20190524