CN104014068B - Double-sleeve type drainage pipe easy to replace - Google Patents

Double-sleeve type drainage pipe easy to replace Download PDF

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Publication number
CN104014068B
CN104014068B CN201410252675.5A CN201410252675A CN104014068B CN 104014068 B CN104014068 B CN 104014068B CN 201410252675 A CN201410252675 A CN 201410252675A CN 104014068 B CN104014068 B CN 104014068B
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CN
China
Prior art keywords
tube
pipe
joint
tubal
sleeve type
Prior art date
Application number
CN201410252675.5A
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Chinese (zh)
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CN104014068A (en
Inventor
周炬
Original Assignee
杭州雲林医疗科技有限公司
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Priority to CN201410252675.5A priority Critical patent/CN104014068B/en
Publication of CN104014068A publication Critical patent/CN104014068A/en
Application granted granted Critical
Publication of CN104014068B publication Critical patent/CN104014068B/en

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Abstract

The invention relates to a wound drainage device or an analogue, in particular to a double-sleeve type drainage pipe easy to replace and belongs to the technical field of medical devices. The double-sleeve type drainage pipe solves the technical problem that a double-sleeve drainage pipe in the prior art is difficult to replace. The double-sleeve type drainage pipe comprises an outer pipe and an inner pipe sleeved with the outer pipe. The pipe wall at the front end of the outer pipe and the pipe wall at the front end of the inner pipe are provided with an outer drainage hole and an inner drainage hole respectively, wherein the outer drainage hole and the inner drainage hole are communicated. A connector is arranged at the tail end of the outer pipe, and the outer pipe and the inner pipe are detachably connected through the connector and are in air-tight seal. The double-sleeve type drainage pipe is characterized in that the inner pipe wall of the outer wall or the outer pipe wall of the inner pipe is provided with a plurality of protrusions and/or a plurality of flanges which are arranged in the axial direction of the drainage pipe, and the inner pipe wall of the outer wall and the outer pipe wall of the inner pipe form contact through the protrusions and/or the flanges. The double-sleeve type drainage pipe has the advantages that the inner pipe is convenient to replace, and the drainage effect is good.

Description

Easily changeable double-sleeve type drainage tube
Technical field
The present invention relates to a kind of wound wound drain or the like, especially relate to a kind of easily changeable double-sleeve type drain Pipe, belongs to technical field of medical instruments.
Background technology
In clinical medicine application, surgical operation particularly abdominal surgery, thoracic surgery and gynecological etc., Post operation usually needs Place drainage tube, in case the generation of postoperative hemorrhage, sepage and fistula of operative incision, at present clinically using most be single-chamber drain Pipe.Although this drainage tube is simple, is easily blocked by clot, slough, mucus or omentum majuss etc., cause drain not Freely, it is impossible to play purpose after drain well, severe patient may result in infection or fistula of operative incision to hydrops, needs opening operation abdomen again to draw Stream.
For this reason, people have invented the drainage tube of double-jacket tube formula, including outer tube and the inner tube being sheathed in outer tube, stifled when occurring During plug, change the long-pending inner tube having a tamper can drain again, strengthen drainage effect.But, existing double-sleeve type drainage tube, due to Size itself and the restriction of material, the gap between inner and outer tubes is less, easily forms larger connecing between inner tube and outer tube Contacting surface and larger frictional resistance are so that the replacing of inner tube becomes relative difficulty;Equally, need to insert as the inner tube replaced In outer tube, it is also same wasting time and energy;When serious, outer tube may be caused to shift, or even need to reappose outer tube, significantly drop The low application effect of double-jacket tube formula drainage tube.
Content of the invention
The present invention is directed to inner tube present in double-jacket tube formula drainage tube in prior art and changes difficult technical problem, provides , so that the replacing of inner tube is convenient, using effect is good for a kind of easily changeable double-jacket tube formula drainage tube.
For this reason, the present invention employs the following technical solutions:
A kind of easily changeable double-sleeve type drainage tube, including outer tube and be sheathed on inner tube in outer tube, in described outer tube and It is respectively arranged with the external drainage hole run through and interior conduction hole on the front end tube wall of inner tube, the end of outer tube is provided with union joint, Outer tube and inner tube pass through that this union joint is detachably connected and hermetic seal it is characterised in that:On the inner tubal wall of described outer tube or It is provided with several raised and/or some along the axially arranged fin of drainage tube, the inner tube of outer tube on the outer tube wall of person's inner tube Only form contact by those projections and/or fin on wall or between the outer tube wall of inner tube.By on the inner tubal wall of outer tube Or arrange several raised and/or some on the outer tube wall of inner tube along the axially arranged fin of drainage tube, inside and outside tube wall it Between by those raised and/or fin contacts, greatly reduce the contact area between inside and outside tube wall and inner and outer pipe transported relatively The frictional resistance producing when dynamic is so that the replacing of inner tube becomes simply, also to operate the drain effect it is ensured that double-jacket tube formula drainage tube Really.
Preferably, those are raised and/or fin forms between the inner tubal wall and the outer tube wall of inner tube of outer tube and a little contacts And/or linear contact lay.Reduce the contact area between inside and outside tube wall and issuable frictional resistance further.
Preferably, arranging on the inner tubal wall of described outer tube or the outer tube wall of inner tube or described projection or fin There are ball grooves, be provided with a ball in ball grooves, ball forms rolling between the inner tubal wall and the outer tube wall of inner tube of outer tube Connect.The rolling connection of ball further reduces issuable frictional resistance between inside and outside tube wall, facilitates inner tube more Change.
Preferably, arranging needle roller on the inner tubal wall of described outer tube or the outer tube wall of inner tube or projection or fin Groove, is provided with a needle roller in needle roller groove, is provided with along entirely with the corresponding site of the inner tubal wall of outer tube in the outer tube wall of inner tube Inner tube or outer length of tube, the chute that needle roller rolls wherein can be accommodated, the outer tube wall of the inner tubal wall in outer tube for the needle roller and inner tube Between formed roll connect.The rolling connection of needle roller further reduces issuable frictional resistance between inside and outside tube wall, side Just the replacing of inner tube.
Preferably, described union joint includes the joint A being arranged at outer pipe end, and it is arranged at inner tube corresponding site Joint B, joint A have can be with the first connecting portion of outer tube grafting and the second connecting portion being connected with joint B, shape in joint A Become to be available for the passage that inner tube passes through, joint B has the 3rd connecting portion being connected with joint A and can closed joint A penetrating via The Sealing shield ring of opening.By split type joint A and joint B, while to outer tube with inner tube inlet seal, convenient dismounting And connection, it is easy to the replacing of inner tube.
Preferably, described 3rd connecting portion is the locking lid of setting and Sealing shield ring rear, locking lid has female thread, Described second connecting portion is provided with external screw thread.Structure is simple, easy to use, good sealing effect.
Preferably, also including an extension tube attached, described joint B have the 3rd connecting portion being connected with joint A, can be with inner tube 4th connecting portion of grafting and can be with the 5th connecting portion of extension tube attached grafting, the four, the 5th form run through logical in connecting portions Road.Will be detachably connected to inner tube, extension tube attached and outer tube by joint B, extension tube attached and external device (ED) (as negative pressure suction device, Drainage device etc.) connect, conveniently respectively inner tube or extension tube attached are changed.
Preferably, forming drain relief area between the inner tubal wall and the outer tube wall of inner tube of described outer tube, connect described It is provided with an air inlet pipe being opened on drain relief area on head A, air inlet pipe is provided with a pressure-regulating valve.In negative pressure drainage Under the conditions of, when the suction force of negative pressure is excessive, by adjusting pressure-regulating valve, the negative pressure in adjustable drain pipe, it is to avoid because Suction force is excessive to lead to the tissue such as omentum majuss to be coated on the blocking causing on trocar sheath.
Preferably, an air filter being used for filter bacteria is additionally provided with described air inlet pipe.Entrance is drawn Air in flow tube carries out aseptic filtration, it is to avoid because of the bacterial infection risk of in the air.
Preferably, said inner tube is single-chamber pipe or the two-chamber pipe with a flush pipe.Drainage tube can be entered Row rinses, and prevents from blocking.
Therefore, the double-sleeve type drainage tube of invention, by reducing the contact area between inner tube and outer tube and issuable Frictional resistance, meanwhile, adopts dismountable connected mode between inner tube and outer tube, greatly facilitates the replacing of inner tube;Pressure Regulating valve and air filter, conveniently adjusted overpressure and air is filtered, further enhancing using effect.
Brief description
Fig. 1, Fig. 2 are the structural representation of the embodiment of the present invention 1;
Fig. 3 is the schematic cross-section of the embodiment of the present invention 1 inner tube and outer tube;
Fig. 4, Fig. 5 are the schematic diagram of tube shape in the present invention;
Fig. 6 is the schematic cross-section of the embodiment of the present invention 2 inner tube and outer tube;
Fig. 7 is the schematic cross-section of the embodiment of the present invention 3 inner tube and outer tube;
Fig. 8 is the schematic cross-section of the embodiment of the present invention 4 inner tube and outer tube;
Fig. 9 is the schematic cross-section of the embodiment of the present invention 5 inner tube and outer tube;
Figure 10 is the schematic cross-section of the embodiment of the present invention 6 inner tube and outer tube;
In figure, outer tube 1, external drainage hole 11;Inner tube 2, interior conduction hole 21, flush pipe 22;Union joint 3, joint A31, joint B32, first connecting portion 33, second connecting portion 34, the 3rd connecting portion 35, the 4th connecting portion 36, the 5th connecting portion 37, Sealing shield ring 38;Raised 4, ball grooves 41, ball 42;Extension tube attached 5;Air inlet pipe 6;Pressure-regulating valve 7;Gas defecator 8, fin 9, needle roller groove 91, needle roller 92, chute 93;Drain relief area 10, retainer ring 100.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Embodiment 1:
As Figure 1-5, the easily changeable double-sleeve type drainage tube of the present embodiment, including outer tube 1 and be sheathed in outer tube 1 Inner tube 2, the front end tube wall of described outer tube 1 and inner tube 2 is respectively arranged with the external drainage hole 11 run through and interior conduction hole 21, The end of outer tube 1 is provided with union joint 3, outer tube 1 and inner tube 2 pass through that this union joint 3 is detachably connected and hermetic seal, outside Several projections 4 are equally spacedly provided with the inner tubal wall of pipe 1, raised 4 height and quantity can support outer tube and inner tube, Make only to be defined by these projection contacts between the inner tubal wall of outer tube and the outer tube wall of inner tube.Raised 4 outer surface is sphere, from And form point between raised 4 and the outer surface of inner tube 2 and contact, as shown in Figure 3.
As shown in Fig. 2 union joint 3 includes being arranged at the joint A31 of outer tube 1 end, and it is arranged at inner tube 2 corresponding site Joint B32, also include an extension tube attached 5, joint A31 have can with the first connecting portion 33 of outer tube 1 grafting and with joint B32 The second connecting portion 34 connecting, forms in joint A and is available for the passage that inner tube 2 passes through, and joint B32 has the being connected with joint A Three connecting portions 35, can with the 4th connecting portion 36 of inner tube 2 grafting and can with the 5th connecting portion 37 of extension tube attached 5 grafting and Can closed joint A penetrating via opening Sealing shield ring 38, the four, the 5th form the passage running through in connecting portions.In this enforcement In example, the 3rd connecting portion 35 is the locking lid at setting and Sealing shield ring 38 rear, and locking lid has female thread, in second connecting portion It is provided with external screw thread on 34.During use, rotational lock lid, joint A can be closely joined together with joint B, joint A runs through logical Road opening is sealed by Sealing shield ring 38, passes through the channel connection being formed in the four, the 5th connecting portions between inner tube 2, extension tube attached 5.
Form drain relief area 10 between the inner tubal wall and the outer tube wall of inner tube 2 of outer tube 1, joint A31 is provided with One air inlet pipe 6 being opened on drain relief area 10, air inlet pipe 6 is provided with a pressure-regulating valve 7.Pressure-regulating valve 7 can adopt Regulating valve structure of the prior art.One air filter 8 is additionally provided with air inlet pipe 6, air filter 8 can adopt Structure of the prior art, such as can use a piece of perforated membrane to be fixed perforated membrane annulus or shell;Also may be selected to be movably connected on The filter of air inlet pipe end, the two ends of filter are each provided with a drainage screen, are filled with filtrate between two drainage screens.
The outer contour shape of outer tube 1 can be circular or oval;Inner tube 2 for single-chamber pipe or can have The two-chamber pipe of one flush pipe 22, as illustrated in figures 4-5.The head end of outer tube 1 can be closed, or round and smooth perforate is processed.Draw outward Discharge orifice 11 can be circular, oval, square, racetrack, preferably diameter 1-3mm, and quantity is at 2-32;The external diameter of outer tube exists 2.0mm-20mm, preferably 4-16mm.Stamp scale designation on the tube wall of outer tube 1, may indicate that the length in insertion human body;Inner tube 2 Head end can be remained silent or round and smooth perforate, and interior conduction hole 21 can be circular, oval, square, racetrack, preferably diameter 1-3mm, , in 2-32 preferably diameter 1-2mm, quantity is at 2-16 for quantity.The external diameter of inner tube is selected according to the internal diameter of outer tube.On outer tube 1 It is additionally provided with the retainer ring 100 for this drainage tube is fixing and human body.
Embodiment 2:
As shown in fig. 6, the present embodiment is with the difference of embodiment 1:The inner tubal wall of outer tube 1 is provided with some Bar fin 9, fin 9 is axially arranged along drainage tube, and fin 9 can be positioned apart from along the whole length direction of outer tube wall, also may be used It is only one section, some sections of fins are alternately arranged.The shape of fin 9 can be triangular prism, semicolumn or other polygon prisms, fin 9 height and quantity, can support outer tube and inner tube, make only to pass through these between the inner tubal wall of outer tube and the outer tube wall of inner tube Fin contact is defined.In the present embodiment, fin 9 for semi-cylindrical, thus being formed between the outer surface of fin 9 and inner tube 2 Linear contact lay.
Embodiment 3:
As shown in fig. 7, the present embodiment is with the difference of embodiment 1:It is provided with ball grooves on described raised 4 41, it is provided with a ball 42 in ball grooves 41, ball 42 forms rolling between the inner tubal wall and the outer tube wall of inner tube of outer tube Connect.In process, ball grooves 41 can be set to be coated on more than half of ball 42, and ball grooves 41 and ball 42 it Between leave certain space, aseptic lubricant can be filled in space, so, ball 42 does not fall out, and can freely roll.
Embodiment 4:
As shown in figure 8, the present embodiment is with the difference of embodiment 2:Fin 9 is four prism type, sets on fin 9 Put needle roller groove 91, be provided with a needle roller 92 in needle roller groove, the position corresponding with needle roller 92 sets on the outer tube wall of inner tube 2 It is equipped with along whole inner tube length, the chute 93 that needle roller can be accommodated roll wherein, needle roller 92 is in the inner tubal wall of outer tube and inner tube Outer tube wall between formed roll connect.Needle roller groove 91 can be set to be coated on more than half of needle roller 92, and needle roller groove 91 with Leave certain space between needle roller 92, aseptic lubricant in space, can be filled, so, needle roller 92 does not fall out, and can be certainly By rolling;Certainly, needle roller 91 can also be connected in needle roller groove 91 by the axle at two ends.
Embodiment 5:
As shown in figure 9, the present embodiment is with the difference of embodiment 3:Ball grooves 41 are set directly at the interior of outer tube 1 On tube wall, it is provided with a ball 42 in ball grooves 41, ball 42 is formed between the inner tubal wall and the outer tube wall of inner tube of outer tube Roll and connect.
Embodiment 6:
As shown in Figure 10, the present embodiment and the difference of embodiment 5 are:Ball grooves 41 are set directly at inner tube 2 On outer tube wall, it is provided with a ball 42 in ball grooves 41, ball 42 shape between the inner tubal wall and the outer tube wall of inner tube of outer tube Become to roll and connect.
Embodiment 7:
The present embodiment is with the difference of embodiment 4:Needle roller groove 91 is set directly on the inner tubal wall of outer tube 1, It is provided with a needle roller 92, the position corresponding with needle roller 92 is provided with along entirely interior on the outer tube wall of inner tube 2 in needle roller groove 91 Length of tube, the chute 93 that can accommodate needle roller and roll wherein, needle roller 92 is between the inner tubal wall and the outer tube wall of inner tube of outer tube Formed to roll and connect.
Embodiment 8:
The present embodiment is with the difference of embodiment 7:Needle roller groove 91 is set directly on the outer tube wall of inner tube 2, It is provided with a needle roller 92, the position corresponding with needle roller 92 is provided with along entirely interior on the inner tubal wall of outer tube 1 in needle roller groove 91 Length of tube, the chute 93 that can accommodate needle roller and roll wherein, needle roller 92 is between the inner tubal wall and the outer tube wall of inner tube of outer tube Formed to roll and connect.
Certainly, the present invention also has other embodiment, and embodiments described above is only a part of reality of invention Apply example, rather than whole embodiments.Based on the embodiment in invention, those of ordinary skill in the art are not making creativeness The every other embodiment being obtained under the premise of work, all should belong to the scope of invention protection.

Claims (7)

1. a kind of easily changeable double-sleeve type drainage tube, including outer tube (1) and be sheathed on inner tube (2) in outer tube (1), described The external drainage hole (11) run through and interior conduction hole (21) are respectively arranged with the front end tube wall of outer tube (1) and inner tube (2), in outer tube (1) end is provided with union joint (3), and outer tube (1) and inner tube (2) pass through that this union joint (3) is detachably connected and hermetic seal, It is characterized in that:Be provided with the inner tubal wall of described outer tube (1) or on the outer tube wall of inner tube several raised (4) and/or Some, along the axially arranged fin of drainage tube (9), are only passed through to be somebody's turn to do on the inner tubal wall of outer tube (1) or between the outer tube wall of inner tube Raised (4) a bit and/or fin (9) forms contact;Those raised (4) and/or fin (9) outer tube inner tubal wall and inner tube outer Form point contact and/or linear contact lay between tube wall;
In the inner tubal wall of described outer tube (1) or the outer tube wall of inner tube (2) or described projection (4) or the upper setting of fin (9) There are ball grooves (41), be provided with a ball (42) in ball grooves (41), ball (42) is in the inner tubal wall of outer tube (1) and inner tube (2) formed between outer tube wall to roll and connect;Or,
In the inner tubal wall of described outer tube (1) or the outer tube wall of inner tube (2) or projection (4) or fin (9) upper setting needle roller Groove (91), is provided with a needle roller (92) in needle roller groove (91), in the phase of outer tube wall and the inner tubal wall of outer tube (1) of inner tube (2) Position is answered to be provided with along whole inner tube or outer length of tube, the chute (93) that needle roller (92) can be accommodated roll wherein, needle roller (92) formed to roll between the inner tubal wall and the outer tube wall of inner tube of outer tube and be connected.
2. easily changeable double-sleeve type drainage tube according to claim 1 it is characterised in that:Described union joint (3) includes setting It is placed in the joint A (31) of outer tube (1) end, and is arranged at the joint B (32) of inner tube (2) corresponding site, joint A (31) has Can be with the first connecting portion (33) of outer tube (1) grafting and the second connecting portion (34) being connected with joint B, the interior shape of joint A (31) Become to be available for the passage that inner tube (2) passes through, joint B (32) is had the 3rd connecting portion (35) being connected with joint A and can closing and connects The Sealing shield ring (38) of head A penetrating via opening.
3. easily changeable double-sleeve type drainage tube according to claim 2 it is characterised in that:Described 3rd connecting portion (35) is Setting and the locking lid at Sealing shield ring (38) rear, lock lid and have female thread, be provided with described second connecting portion (34) External screw thread.
4. easily changeable double-sleeve type drainage tube according to claim 2 it is characterised in that:Also include an extension tube attached (5), institute State joint B (32) have the 3rd connecting portion (35) being connected with joint A, can be with the 4th connecting portion (36) of inner tube grafting and can With the 5th connecting portion (37) of extension tube attached grafting, in the four, the 5th connecting portions, form the passage running through.
5. easily changeable double-sleeve type drainage tube according to claim 2 it is characterised in that:Inner tube in described outer tube (1) Form drain relief area (10) between the outer tube wall of wall and inner tube (2), described joint A (31) is provided with one and is opened on drain The air inlet pipe (6) of relief area, air inlet pipe (6) is provided with a pressure-regulating valve (7).
6. easily changeable double-sleeve type drainage tube according to claim 5 it is characterised in that:Described air inlet pipe also sets up There is an air filter (8) being used for filter bacteria.
7. easily changeable double-sleeve type drainage tube according to claim 1 it is characterised in that:Said inner tube (2) is justified for single-chamber Pipe or the two-chamber pipe with a flush pipe (22).
CN201410252675.5A 2014-06-09 2014-06-09 Double-sleeve type drainage pipe easy to replace CN104014068B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410252675.5A CN104014068B (en) 2014-06-09 2014-06-09 Double-sleeve type drainage pipe easy to replace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410252675.5A CN104014068B (en) 2014-06-09 2014-06-09 Double-sleeve type drainage pipe easy to replace

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CN104014068A CN104014068A (en) 2014-09-03
CN104014068B true CN104014068B (en) 2017-02-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104398075B (en) * 2014-11-20 2016-07-06 湖州新远见木塑科技有限公司 Structure moulded by a kind of combination wood
CN108685606A (en) * 2018-06-12 2018-10-23 李长寿 A kind of thorax puncture syringe
CN109771714A (en) * 2019-03-12 2019-05-21 宁波华坤医疗器械有限公司 Drainage component

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DE3935256C1 (en) * 1989-10-23 1991-01-03 Bauerfeind, Peter, Dr., 8264 Waldkraiburg, De
US7993384B2 (en) * 2003-09-12 2011-08-09 Abbott Cardiovascular Systems Inc. Delivery system for medical devices
CN202096524U (en) * 2011-01-30 2012-01-04 上海淞行实业有限公司 Locatable celiac dual-tube rinsing drainage tube
CN203123263U (en) * 2013-01-18 2013-08-14 成都鑫赏电子科技有限公司 Anti-squeezing dredging pipe
CN103071231A (en) * 2013-01-25 2013-05-01 南京大学 Medical double-sleeve drainage tube
CN203885995U (en) * 2014-06-09 2014-10-22 杭州雲林医疗科技有限公司 Double-sleeve type drainage tube easy to replace

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Effective date of registration: 20200728

Address after: 311500 7 / F, block a, science and Technology Incubation Park, No. 199, Yangzhou South Road, Tonglu Economic Development Zone, Tonglu County, Hangzhou City, Zhejiang Province

Patentee after: Hangzhou Kangyuan Suixi Medical Technology Co., Ltd

Address before: Hangzhou City, Zhejiang province 310020 Jianggan District Caihe Road No. 25 room 1097

Patentee before: HANGZHOU YUNLIN MEDICAL TECHNOLOGY Co.,Ltd.