CN103610477B - Pneumoperitoneum-free device for gear open type laparoscope - Google Patents
Pneumoperitoneum-free device for gear open type laparoscope Download PDFInfo
- Publication number
- CN103610477B CN103610477B CN201310603553.1A CN201310603553A CN103610477B CN 103610477 B CN103610477 B CN 103610477B CN 201310603553 A CN201310603553 A CN 201310603553A CN 103610477 B CN103610477 B CN 103610477B
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- Prior art keywords
- section
- variable cross
- spoke
- open type
- pneumoperitoneum
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- 208000005646 Pneumoperitoneum Diseases 0.000 title claims abstract description 25
- 210000002784 stomach Anatomy 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 3
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 210000003815 abdominal wall Anatomy 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 210000000683 abdominal cavity Anatomy 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000968 intestinal effect Effects 0.000 description 2
- 238000002357 laparoscopic surgery Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010060954 Abdominal Hernia Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003754 fetus Anatomy 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000007912 intraperitoneal administration Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 210000000496 pancreas Anatomy 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/02—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors
- A61B17/0281—Abdominal wall lifters
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
A pneumoperitoneum-free device for a gear open type laparoscope comprises a cylindrical rack, a support cylinder, variable-section spokes, a connecting ring and a locking nut. The cylindrical rack is nested into the hollow part of the support cylinder. A groove is formed on the periphery of the lower end face of the support cylinder. The variable-section spokes are mounted in the groove. The gears on the variable-section spokes are meshed with the cylindrical rack. The variable-section spokes spread on the inner abdominal wall in the abdominal cavity by the engaging force of the gears on the variable-section spokes and the cylindrical rack, the front abdominal wall is lifted sufficiently, the spread variable-section spokes form a spherical crown, and accordingly the problem that the existing pneumoperitoneum-free surgeries are insufficient in exposed space, poor in abdominal wall stress condition, and easily causes secondary damage is solved.
Description
Technical field:
The present invention relates to technical field of medical instruments, specifically a kind of tooth open type laparoscope pneumoperitoneum-free device.
Background technology:
Laparoscopic surgery, as a kind of less invasive techniques, has become the important modus operandi of the histoorgans such as liver, gallbladder, pancreas, spleen, stomach, intestinal, abdominal hernia, uterus and ovary.Conventional laparoscopic operation utilizes CO
2pneumoperitoneum technology manufactures operation technique space.Due to CO
2pneumoperitoneum has many harmful effects to breathing, blood circulation and Pregnant Fetus, is developed various stomach wall suspension apparatus to carry out the laparoscopic surgery of exempting from pneumoperitoneum.But all there is operative space and expose not enough and stomach wall force-bearing situation is not good in existing pneumoperitoneum technology of exempting from, easily causes the defect of secondary injury.Main cause is that existing stomach wall suspention pulling force of exempting from pneumoperitoneum technology can make bilateral stomach wall assemble to centre, and extruding intestinal tube is concentrated to centre, causes operative space to diminish, narrows; When muscular tension is larger, operation technique space more can obviously reduce; In addition, existingly exempt from pneumoperitoneum device or need repeatedly to pierce through abdominal wall muscle, or its distal portion can thrust stomach wall under the effect of suspention pulling force, easily causes secondary injury.In peritoneoscope minimally invasive surgery field, exempting from main cause that pneumoperitoneum technology can not get further developing is exempt from that pneumoperitoneum technology operative space is little, visual area exposes poor, that stomach wall force-bearing situation is not good problem and do not solved at all.
Summary of the invention:
The object of this invention is to provide a kind of tooth open type laparoscope pneumoperitoneum-free device, it can overcome existingly exempt from that pneumoperitoneum technology operative space is little, that visual area exposes is poor, stomach wall force-bearing situation is not good shortcoming.
The present invention achieves the above object by the following technical programs: a kind of tooth open type laparoscope pneumoperitoneum-free device, comprise column tooth bar, support tube, variable cross-section spoke, connecting ring and locking nut, described column tooth bar is inserted in vacancy in support tube, the lower surface periphery of support tube has groove, variable cross-section spoke is installed in groove, the gear on variable cross-section spoke and the engagement of column tooth bar.
The root of described variable cross-section spoke is provided with gear.
Described cross section spoke is adopt the variable cross-section design diminishing gradually from root to tail portion cross section and become large more gradually, when being subject to stomach wall pressure, variable cross-section spoke because of root bending distortion little, tail portion flexural deformation is large and make whole spoke bend to circular shape, and all spokes form spherical crown shape jointly.
Described variable cross-section spoke ends is round end shape.
Described column tooth bar is provided with cone boss, and cone boss lower surface withstands the upper surface of variable cross-section spoke just.
Operation principle: column tooth bar is moved downward by initial position under external force, subsequently with the gears meshing of variable cross-section spoke, variable cross-section spoke is swung to horizontal level by the position of vertical human body under the drive of column tooth bar, till swinging to horizontal level, tighten locking nut subsequently whole mechanism to be locked, this timer is in running order.
The technique effect that the present invention gives prominence to is:
The present invention compared with pneumoperitoneum technology, has material alterations with existing exempting from:
1, variable cross-section spoke is opened in spherical crown shape by the engagement force of the gear on variable cross-section spoke and column tooth bar by the present invention under intraperitoneal stomach wall, and front stomach wall is fully lifted, and solves existing pneumoperitoneum technology operative space of exempting from preferably and exposes not enough;
2, variable cross-section spoke adopts the variable cross-section design diminishing gradually from root to tail portion cross section and become large more gradually, when being subject to stomach wall pressure, variable cross-section spoke because of root bending distortion little, tail portion flexural deformation is large and make whole spoke bend to circular shape, and all spokes form spherical crown shape jointly, alleviate the active force of spoke to stomach wall, in addition, variable cross-section spoke ends adopts round end form, device is not only made to pass in and out stomach wall easy, and device work time not easily prick into human body tissue, thus efficiently solve the not good problem easily causing secondary injury of stomach wall force-bearing situation.
3, when this device is opened completely, the upper surface of variable cross-section spoke is just withstood in cone boss lower surface on column tooth bar, use lever principle make spoke form moment upwards thus more effectively balance the downward moment of stomach wall gravity and tension force formation, add the reliability of support.
Accompanying drawing illustrates:
Fig. 1 is the original state structural representation of tooth open type laparoscope pneumoperitoneum-free device of the present invention.
Fig. 2 is the structure for amplifying schematic diagram of local A.
Fig. 3 is the working state structure schematic diagram of tooth open type laparoscope pneumoperitoneum-free device of the present invention.
Fig. 4 is the structure for amplifying schematic diagram of local B.
Fig. 5 is the structural representation of column tooth bar 1.
Fig. 6 is Local C structure for amplifying schematic diagram.
Fig. 7 is the structural representation of variable cross-section spoke 5.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, tooth open type laparoscope pneumoperitoneum-free device of the present invention, be made up of column tooth bar 1, locking nut 2, support tube 3, connecting ring 4 and variable cross-section spoke 5, column tooth bar 1 is installed through the centre bore of support tube 3, locking nut 2 is enclosed within column tooth bar 1 top, variable cross-section spoke 5 is installed in the groove of support tube 3 lower end by connecting ring 4, in vertical position, is now the initial state of work.
Operation principle and process:
During work, mention stomach wall, the otch of about 30mm is done in annulus umbilicalis place, hold support tube 3, the tooth open type laparoscope pneumoperitoneum-free device of work original state is as shown in Figure 1 inserted abdominal cavity, and make it perpendicular to belly, down promote columnar tooth bar 1, column tooth bar 1 moves downward under external force, and with the gears meshing of variable cross-section spoke 5, variable cross-section spoke 5 is around connecting ring 4 swinging direct to being horizontal, rotational lock nut 2 moves down, until by locked for whole mechanism, variable cross-section spoke 5 root pushed down by the boss of column tooth bar 1 simultaneously, lever principle is utilized to help variable cross-section tooth bar 5 to support stomach wall, column tooth bar 1 is mentioned and is hung on to be fixed on the support of operation table, then front stomach wall fully can be lifted, this timer is in running order.After operation terminates, column tooth bar 1 is taken off from support, unclamps locking nut 2, lift column tooth bar 1, under rack-and-pinion 1 interacts, variable cross-section spoke 5 is swung to upright position by horizontal level, whole device collapses to original state, it is taken out from belly.
Claims (5)
1. a tooth open type laparoscope pneumoperitoneum-free device, comprise column tooth bar, support tube, variable cross-section spoke, connecting ring and locking nut, it is characterized in that: described column tooth bar is inserted in vacancy in support tube, the lower surface periphery of support tube has groove, variable cross-section spoke is installed in groove, the gear on variable cross-section spoke and the engagement of column tooth bar.
2. tooth open type laparoscope pneumoperitoneum-free device according to claim 1, is characterized in that: the root of described variable cross-section spoke is provided with gear.
3. tooth open type laparoscope pneumoperitoneum-free device according to claim 1, it is characterized in that: described variable cross-section spoke is adopt the variable cross-section design diminishing gradually from root to tail portion cross section and become large more gradually, when being subject to stomach wall pressure, variable cross-section spoke because of root bending distortion little, tail portion flexural deformation is large and make whole spoke bend to circular shape, and all spokes form spherical crown shape jointly.
4. tooth open type laparoscope pneumoperitoneum-free device according to claim 1, is characterized in that: described variable cross-section spoke ends is round end shape.
5. tooth open type laparoscope pneumoperitoneum-free device according to claim 1, it is characterized in that: described column tooth bar is provided with cone boss, cone boss lower surface withstands the upper surface of variable cross-section spoke just, and described variable cross-section spoke is the spoke that cross-sectional sizes can change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603553.1A CN103610477B (en) | 2013-11-25 | 2013-11-25 | Pneumoperitoneum-free device for gear open type laparoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603553.1A CN103610477B (en) | 2013-11-25 | 2013-11-25 | Pneumoperitoneum-free device for gear open type laparoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103610477A CN103610477A (en) | 2014-03-05 |
| CN103610477B true CN103610477B (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310603553.1A Expired - Fee Related CN103610477B (en) | 2013-11-25 | 2013-11-25 | Pneumoperitoneum-free device for gear open type laparoscope |
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| Country | Link |
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| CN (1) | CN103610477B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106606368B (en) * | 2016-11-23 | 2018-11-23 | 浙江省肿瘤医院 | The percutaneous puncture skin traction drag hook of radial development under a kind of visual scope |
| CN106606367B (en) * | 2016-11-23 | 2018-11-23 | 浙江省肿瘤医院 | A kind of percutaneous puncture skin traction drag hook of visual scope lower axle to outreach |
| CN107890358B (en) * | 2017-12-15 | 2023-08-25 | 山东大学 | Deformable abdominal wall spreader |
| CN109199477A (en) * | 2018-10-30 | 2019-01-15 | 中国人民解放军陆军特色医学中心 | A kind of vagina suture assistor |
| CN109674498B (en) * | 2019-01-04 | 2023-11-24 | 中国医学科学院北京协和医院 | Surgical opening instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202719A (en) * | 2012-01-17 | 2013-07-17 | 广西大学 | Spindly non-pneumoperitoneum device for single-port laparoscopy |
| CN203290944U (en) * | 2013-05-03 | 2013-11-20 | 广西大学 | Slotted positioning shaft sleeve of pneumoperitoneum-free mechanical device of laparoscope |
| CN203576567U (en) * | 2013-11-25 | 2014-05-07 | 广西大学 | Toothed open laparoscope gasless device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9445800B2 (en) * | 2011-01-04 | 2016-09-20 | The Johns Hopkins University | Minimally invasive laparoscopic retractor |
| JP5595608B2 (en) * | 2011-03-28 | 2014-09-24 | 株式会社モリタ製作所 | Retractor |
-
2013
- 2013-11-25 CN CN201310603553.1A patent/CN103610477B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202719A (en) * | 2012-01-17 | 2013-07-17 | 广西大学 | Spindly non-pneumoperitoneum device for single-port laparoscopy |
| CN203290944U (en) * | 2013-05-03 | 2013-11-20 | 广西大学 | Slotted positioning shaft sleeve of pneumoperitoneum-free mechanical device of laparoscope |
| CN203576567U (en) * | 2013-11-25 | 2014-05-07 | 广西大学 | Toothed open laparoscope gasless device |
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| Publication number | Publication date |
|---|---|
| CN103610477A (en) | 2014-03-05 |
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