CN203861280U - Medical tunnel device assembly - Google Patents
Medical tunnel device assembly Download PDFInfo
- Publication number
- CN203861280U CN203861280U CN201420291953.3U CN201420291953U CN203861280U CN 203861280 U CN203861280 U CN 203861280U CN 201420291953 U CN201420291953 U CN 201420291953U CN 203861280 U CN203861280 U CN 203861280U
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- CN
- China
- Prior art keywords
- tunneler
- handle
- tunnel
- medical
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002792 vascular Effects 0.000 claims abstract description 17
- 241000463219 Epitheca Species 0.000 claims description 18
- 239000000463 material Substances 0.000 abstract description 8
- 210000004204 blood vessel Anatomy 0.000 abstract description 7
- 238000007920 subcutaneous administration Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 5
- 210000004003 subcutaneous fat Anatomy 0.000 abstract description 3
- 210000002966 serum Anatomy 0.000 abstract 1
- 230000002980 postoperative effect Effects 0.000 description 7
- 206010040102 Seroma Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 206010003226 Arteriovenous fistula Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 239000002473 artificial blood Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 206010014080 Ecchymosis Diseases 0.000 description 1
- 206010058046 Post procedural complication Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 208000020832 chronic kidney disease Diseases 0.000 description 1
- 208000022831 chronic renal failure syndrome Diseases 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model provides a medical tunnel device assembly which is composed of a tunnel needle and a tunnel device with the corresponding length and same radian. The tunnel needle comprises a handle and a detachable-connection needle body, and a syringe needle is arranged at the front end of the needle body. The tunnel device comprises a handle, a pull rod, an outer sheath casing pipe and an expansion head, the tunnel device handle is connected with the pull rod to form a handle and pull rod casing piece, the pull rod stretches into the outer sheath casing pipe, and the head end of the pull rod stretches out of the outer sheath casing pipe and is fixed by the expansion head in a casing connection mode. According to the assembly, subcutaneous tunnels with the suitable thickness can be rapidly manufactured, excessive expansion caused by non-professional instruments is reduced, traction damage to vascular grafting materials under the skin is reduced, the tightness degree is moderate, the operation time is shortened, pain of a patient is reduced, a gap between a blood vessel and the inner wall of the tunnel is reduced to the greatest extent, postoperation subcutaneous fat liquidation and effusion can be effectively prevented from happening, and postoperation serum tumescence and the like can be reduced. In order to adapt to requirements of different materials and operation portions, the lengths and the radians of the tunnel needle body and the outer sheath casing pipe and the diameter of the outer sheath casing pipe can be designed according needs.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically a kind of medical tunneler assembly.
Background technology
Along with constantly expansion and the continuous prolongation in dialysis life-span of crowd of chronic renal failure, difficult vascular access patient increases year by year, completes the needs that the operation of blood vessel transplantation internal arteriovenous fistula becomes the increasing vascular access doctor of basic unit.But due to the domestic vascular access center that possesses this technology seldom, and there is no the complete tunneler operating equipment of import, domestic also design produce, cause the popularization of this technology to run into great difficulty.In the process of such operations of great majority, operative doctor uses even sponge holding forceps making hypodermic tunnel and the traction of urethral probe, long curved hemostatic forceps, pull vascular graft passes through tunnel.
This rough operational deficiencies is: 1, hypodermic tunnel is excessively dark, the depth is uneven, 2, operation wound is excessive, postoperative ecchymosis is many, 3, grafting vessel peripheral clearance is excessive, postoperative seroma is serious, and 4, autogenous vessel graft material is hemorrhage by damage in tunneling process, side shoot ligation place, 5, grafting vessel one section of anxiety in tunnel, one section lax, inhomogeneous.The result of operation is the surgical procedure that can not form standard like this, and operative speed is slow, easily cause subcutaneous hemorrhage; Quality control difficulty, has very high requirement to patient's surgical experience and operating technology.Minority path center from the GORE tunneler of abroad purchasing exist assembly complicated, make that tunnel is excessively dark, the defect such as effort, direction are single, user satisfaction is low.
Summary of the invention
In order to overcome the deficiencies in the prior art, this utility model provides a kind of medical tunneler assembly, can reduce patient's postoperative complication, overcome the defect of GORE tunneler simultaneously, it can be applicable to autologous or artificial blood vessel and transplants in internal arteriovenous fistula operation, simple to operate, can effectively shorten operating time.
A kind of medical tunneler assembly, by tunnel guide and tunneler, formed, tunnel guide comprises tunnel guide handle and the needle body removably connecting with tunnel guide handle, the fore-end of needle body is syringe needle, tunneler comprises tunneler handle, pull bar, epitheca sleeve pipe and expansion head, tunneler handle and pull bar connect to form handle bar external member, and pull bar stretches in epitheca sleeve pipe, and a pull bar head end part is stretched out outside epitheca sleeve pipe and by expansion head and is fixed by socket.
Medical tunneler assembly as above, the head end of pull bar is provided with vascular grafts fixed structure.
Medical tunneler assembly as above, described vascular grafts fixed structure is aperture or groove.
Medical tunneler assembly as above, syringe needle is extremely slightly increased by thin to tail end gradually from front end, and butt end external diameter reaches 5-7mm.
Medical tunneler assembly as above, tunnel guide handle with needle body for being threaded.
Medical tunneler assembly as above, the length of the needle body of tunnel guide and corresponding epitheca sleeve pipe is corresponding, radian is identical.
Medical tunneler assembly as above, tunnel guide handle and tunneler handle are cylindrical structure, outer surface annular knurl or fluting.
This utility model can be made rapidly the hypodermic tunnel that thickness is suitable, reduce the overdistension situation that amateur apparatus causes, reduce vascular graft at subcutaneous stretch injury, make vascular grafts degree of tightness appropriateness, shorten operating time, alleviate patient's misery, thereby the gap of as far as possible reducing blood vessel and tunnel inner wall can effectively prevent postoperative subcutaneous fat liquefaction, hydrops, alleviates postoperative seroma.
Accompanying drawing explanation
Fig. 1 is the structural representation of tunnel guide in the medical tunneler assembly of this utility model;
Fig. 2 is the structural representation of tunneler in the medical tunneler assembly of this utility model;
Fig. 3 is the enlarged drawing of II part in Fig. 2;
Fig. 4 is the structural representation of the expansion head of this utility model tunneler.
In figure: 1-tunnel guide, 2-tunneler, 11-syringe needle, 12-needle body, 13-tunnel guide handle, 21-tunneler handle, 22-pull bar, 23-epitheca sleeve pipe, 24-expansion head, 25-vascular grafts standing part.
The specific embodiment
Below in conjunction with the accompanying drawing in this utility model, the technical scheme in this utility model is clearly and completely described.
Please refer to Fig. 1 and Fig. 2, the medical tunneler assembly of this utility model is comprised of tunnel guide 1 and tunneler 2.The needle body 12 that wherein tunnel guide 1 comprises tunnel guide handle 13, removably connects with tunnel guide handle 13, the fore-end of needle body 12 is syringe needle 11.Tunnel guide handle 13 has multiple, embodiment illustrated in fig. 1 for being threaded with needle body 12 modes of removably connecting.
Syringe needle 11 is extremely slightly increased by thin to tail end gradually from front end, and butt end external diameter reaches 5-7mm.Tunnel guide handle 13 is cylindrical, grips and feels, and easily controls application of force direction, is easy on subcutaneous edge design path in advance and opens up the original tunnel that the depth is suitable.After tunnel guide handle 13 is separated with needle body 12, can forward needle body 12 be drawn, tunnel is expanded to 6mm internal diameter simultaneously.Syringe needle 11 is little and round blunt, is difficult for causing subcutaneous superficial vein damage in labour-saving simultaneously.Tunnel guide 1 is owing to being provided with tunnel guide handle 13, during operation, grips and feels, and expands laborsavingly, and easily grasps direction, is easy to open up subcutaneous the original tunnel that the depth is suitable.
Tunneler 2 comprises tunneler handle 21, pull bar 22, epitheca sleeve pipe 23 and expansion 24.Tunneler handle 21 is cylindrical, connect to form handle bar external member with pull bar 22, epitheca sleeve pipe 23 is hollow tubular structure, its length, radian are identical with the syringe needle 11 of corresponding tunnel guide 1, pull bar 22 stretches in epitheca sleeve pipe 23, pull bar 22 head end parts stretch out that epitheca sleeve pipe 23 is outer to be fixed by socket by expansion 24, concrete, at pull bar 22 head ends, there is external screw thread, expansion 24 arranges female thread, and expansion 24 and pull bar 22 head ends are threaded connection and fixing epitheca sleeve pipe is compressed and makes tunneler become integral body.The head end of pull bar 22 is provided with vascular grafts standing part 25, and described vascular grafts standing part 25 is aperture or groove.
After combination, can operate easily tunneler handle 21, epitheca sleeve pipe 23 is inserted in the original tunnel traveling of making along the tunnel guide that length is corresponding, radian is identical, original tunnel is fully expanded to the diameter needing, then split extension head 24, grafting vessel material one end is fixed on for example, on the vascular grafts standing part 25 (aperture or groove) of pull bar 22 front ends, via pull bar 22, oppositely draw grafting vessel is introduced to tunnel by correct direction, after confirming degree of tightness appropriateness, there is no angulation and reverse, epitheca sleeve pipe 23 is drawn to tunnel.
The needle body 12 of above-mentioned tunnel guide 1, the pull bar 22 of tunneler 2 can select sanitation-grade stainless steel material to make, tunnel guide handle 13, tunneler handle 21, epitheca sleeve pipe 23, expansion 24 can select stainless steel material or resin material to make, can be convenient to reuse or use as disposable apparatus, easy to process, low cost of manufacture.
Above-mentioned tunnel guide handle 13 and tunneler handle 21 are cylindrical structure, and outer surface annular knurl or fluting are convenient to according to operation, need to select approach axis and be convenient to finely tune at any time when operation, easily control application of force direction.
Use this assembly can make rapidly the tunnel that thickness is suitable, reduce the overdistension situation that amateur apparatus causes, reduce vascular graft at subcutaneous stretch injury, make vascular grafts degree of tightness appropriateness, shorten operating time, alleviate patient's misery, thereby the gap of as far as possible reducing blood vessel and tunnel inner wall can effectively prevent postoperative subcutaneous fat liquefaction, hydrops, alleviates postoperative seroma.Test specimen, through repeatedly clinical operation confirmation on probation of patent applicant, is made tunnel convenient and swift, and vascular graft puts in place rapidly, in good condition, and postoperative seroma is slight, and field of operation more amateur apparatus recovery time can shorten 2～3 weeks.
This utility model can be applicable in various operations of setting up hypodermic tunnel, can transplant internal arteriovenous fistula operation and long-term conduit implant surgery for autologous or artificial blood vessel, also can be for other section office, other positions, the operation of hypodermic tunnel is set up at positions such as lower limb and abdominal part.For adapting to the needs of different blood vessel material and operative site, the diameter of the length of tunnel guide needle body and epitheca sleeve pipe, radian and epitheca sleeve pipe can design as required.
Claims (7)
1. a medical tunneler assembly, by tunnel guide (1) and tunneler (2), formed, it is characterized in that: tunnel guide (1) comprises tunnel guide handle (13), the needle body (12) removably connecting with tunnel guide handle (13), the fore-end of needle body (12) is syringe needle (11), tunneler (2) comprises tunneler handle (21), pull bar (22), epitheca sleeve pipe (23) and expansion head (24), tunneler handle (21) connects to form handle bar external member with pull bar (22), pull bar (22) stretches in epitheca sleeve pipe (23), pull bar (22) head end part is stretched out outside epitheca sleeve pipe (23) and by expansion head (24) and is fixed by socket.
2. medical tunneler assembly as claimed in claim 1, is characterized in that: the head end of pull bar (22) is provided with vascular grafts standing part (25).
3. medical tunneler assembly as claimed in claim 2, is characterized in that: described vascular grafts standing part (25) is aperture or groove.
4. medical tunneler assembly as claimed in claim 1, is characterized in that: syringe needle (11) is extremely slightly increased by thin to tail end gradually from front end, and butt end external diameter reaches 5-7mm.
5. medical tunneler assembly as claimed in claim 1, is characterized in that: tunnel guide handle (13) with needle body (12) for being threaded.
6. medical tunneler assembly as claimed in claim 1, is characterized in that: the needle body (12) of same group of tunnel guide (1) is corresponding with the length of corresponding epitheca sleeve pipe (23), radian is identical.
7. medical tunneler assembly as claimed in claim 1, is characterized in that: tunnel guide handle (13) and tunneler handle (21) are cylindrical structure, outer surface annular knurl or fluting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291953.3U CN203861280U (en) | 2014-06-04 | 2014-06-04 | Medical tunnel device assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291953.3U CN203861280U (en) | 2014-06-04 | 2014-06-04 | Medical tunnel device assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203861280U true CN203861280U (en) | 2014-10-08 |
Family
ID=51642273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420291953.3U Expired - Lifetime CN203861280U (en) | 2014-06-04 | 2014-06-04 | Medical tunnel device assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203861280U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108720907A (en) * | 2017-04-18 | 2018-11-02 | 苏州景昱医疗器械有限公司 | Medical tunneler |
| CN109363781A (en) * | 2018-10-29 | 2019-02-22 | 复旦大学附属华山医院 | Maincenter paralysis row is good for seven transposition of side neck neural tunnel shaper |
| CN110353782A (en) * | 2019-08-02 | 2019-10-22 | 武汉市第一医院 | Artifical internal arteriovenous fistula maintenance hypodermic tunnel device |
| CN110694136A (en) * | 2019-09-20 | 2020-01-17 | 山东百多安医疗器械有限公司 | Tunnel type is through peripheral central venous catheter and auxiliary device thereof |
| CN115192861A (en) * | 2022-09-16 | 2022-10-18 | 山东百多安医疗器械股份有限公司 | Catheter subcutaneous tunnel fixing device with responsiveness |
| CN117122354A (en) * | 2023-06-21 | 2023-11-28 | 苏州科技城医院 | Subcutaneous tunnel device assembly for artificial blood vessel arteriovenous internal fistula |
-
2014
- 2014-06-04 CN CN201420291953.3U patent/CN203861280U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108720907A (en) * | 2017-04-18 | 2018-11-02 | 苏州景昱医疗器械有限公司 | Medical tunneler |
| CN108720906A (en) * | 2017-04-18 | 2018-11-02 | 苏州景昱医疗器械有限公司 | Medical tunneler |
| CN109363781A (en) * | 2018-10-29 | 2019-02-22 | 复旦大学附属华山医院 | Maincenter paralysis row is good for seven transposition of side neck neural tunnel shaper |
| CN110353782A (en) * | 2019-08-02 | 2019-10-22 | 武汉市第一医院 | Artifical internal arteriovenous fistula maintenance hypodermic tunnel device |
| CN110353782B (en) * | 2019-08-02 | 2024-05-03 | 武汉市第一医院 | Subcutaneous tunnel device for artificial blood vessel arteriovenous internal fistula |
| CN110694136A (en) * | 2019-09-20 | 2020-01-17 | 山东百多安医疗器械有限公司 | Tunnel type is through peripheral central venous catheter and auxiliary device thereof |
| CN115192861A (en) * | 2022-09-16 | 2022-10-18 | 山东百多安医疗器械股份有限公司 | Catheter subcutaneous tunnel fixing device with responsiveness |
| CN117122354A (en) * | 2023-06-21 | 2023-11-28 | 苏州科技城医院 | Subcutaneous tunnel device assembly for artificial blood vessel arteriovenous internal fistula |
| CN117122354B (en) * | 2023-06-21 | 2024-03-15 | 苏州科技城医院 | Subcutaneous tunnel device assembly for artificial blood vessel arteriovenous internal fistula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |