CN203408078U - Airtight type expander - Google Patents
Airtight type expander Download PDFInfo
- Publication number
- CN203408078U CN203408078U CN201320376795.7U CN201320376795U CN203408078U CN 203408078 U CN203408078 U CN 203408078U CN 201320376795 U CN201320376795 U CN 201320376795U CN 203408078 U CN203408078 U CN 203408078U
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- China
- Prior art keywords
- passage
- elasticity guide
- guide pillar
- holder
- gap
- 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 - Fee Related
Links
- 230000005489 elastic deformation Effects 0.000 claims abstract description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000002357 laparoscopic surgery Methods 0.000 abstract description 4
- 206010011409 Cross infection Diseases 0.000 abstract description 3
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 3
- 210000001519 tissue Anatomy 0.000 description 11
- 238000007912 intraperitoneal administration Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000002980 postoperative effect Effects 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010002198 Anaphylactic reaction Diseases 0.000 description 1
- 241001232809 Chorista Species 0.000 description 1
- 206010015150 Erythema Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000036783 anaphylactic response Effects 0.000 description 1
- 208000003455 anaphylaxis Diseases 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000000589 cicatrix Anatomy 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
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Abstract
The utility model relates to the field of medical devices, in particular to an airtight type expander. The airtight type expander comprises an expander body, a fixing seat and first elastic guide pillars, wherein the expander body comprises a passage which is a hollow cylinder with the two ends being opened, one end of the passage is provided with an outer ring along the vertical direction far away from the passage, the other end of the passage is provided with an imbedding ring along the vertical direction far away from the passage, the diameter of the outer ring is greater than the diameter of the imbedding ring, the outer ring, the passage and the imbedding ring can all generate elastic deformation, the first elastic guide pillars are hollow cavities, one end face of each first elastic guide pillar is a plane which is provided with a first through hole, the other end face of each first elastic guide pillar is a convex surface which is far away from the first through hole and is provided with a first gap, the first elastic guide pillars penetrate through the fixing seat and are fixedly arranged on the fixing seat, and the first gap is arranged in the passage. In a laparoscopic surgery, the expander body can be independently used, and separated or extracted tissues can be taken out from the passage, so that cross infection between the separated or extracted tissues and incision tissues is avoided.
Description
Technical field
This utility model relates to field of medical devices, in particular to a kind of air hermetic dilator.
Background technology
In conventional laparoscopic surgery, need to make a call to three to four holes at patient's stomach wall, to facilitate the operation of surgery mechanical and the separated and taking-up of tissue.Because the hole on stomach wall is postoperative, can produce cicatrix, not only can affect postoperative quality of life of patient; And when taking out in body, separated tissue or the apparatus Hui Yu incision tissue of operation contact, and have increased the probability of cross infection and tumor recurrence at separated tissue.Dilator separates owing to the otch in operation process can being expanded to ，Jiang incision tissue and operating theater instruments and chorista, therefore can effectively avoid the generation of the problems referred to above.In correlation technique, expansion apparatus by outer shroud, insert ring and passage forms, outer shroud and insert in ring and be provided with wire loop, due to the elastic deformation unstable properties of wire loop, that easily causes steel wire deviates to injure patient and patient; Simultaneously can not be effectively by cut sealing; Intraabdominal gas excretes by the passage of dilator, extends operating time and has increased expense, thereby having aggravated the injury that patient caused because anesthesia duration is long.
Utility model content
The purpose of this utility model is to provide a kind of air hermetic dilator, to solve the above problems.
A kind of air hermetic dilator is provided in embodiment of the present utility model, has comprised, dilator body, holder and the first elasticity guide pillar; Described dilator body comprises passage, the hollow cylinder that described passage is both ends open, and on one end of described passage, the vertical direction along away from described passage axis, is provided with outer shroud; On its other end, the vertical direction along away from described passage axis, is provided with and inserts ring; Described in being greater than, the diameter of described outer shroud inserts the diameter of ring; Described outer shroud, described passage and described in insert ring and all elastic deformation can occur; Described the first elasticity guide pillar is hollow cavity, and one end is plane, is provided with the first through hole in described plane; Other end is the convex surface away from described the first through hole, is provided with the first gap on described convex surface; Described the first elasticity guide pillar passes described holder, and is fixed on described holder; Described holder is for covering in described outer shroud, and described the first gap is placed in described passage.
A kind of air hermetic dilator of this utility model above-described embodiment, outer shroud, insert ring and passage all adopt elastic material to make, therefore there is good elastic deformation performance, and can make otch expand completely, also avoided the risk that comes off and exist wiry simultaneously; And owing to setting up the first elasticity guide pillar, and one end is convex surface, is provided with the first gap on convex surface, played the effect of one-way exhaust, and extraneous operating theater instruments can be inflated to intraperitoneal by the first through hole, and Intraabdominal gas can not be discharged from the first gap.Meanwhile, in laparoscopic surgery, dilator body can be used separately, and tissue separated or that extract takes out from passage, can avoid tissue and incision tissue separated or that extract, or operating theater instruments and incision tissue are in contact with one another and cause cross infection.
Accompanying drawing explanation
Fig. 1 shows the structural representation of a kind of air hermetic dilator of this utility model;
Fig. 2 shows the first elasticity guide pillar and holder amplification view in this utility model.
The specific embodiment
Below by specific embodiment, also by reference to the accompanying drawings this utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of air hermetic dilator that the present embodiment provides, comprises dilator body, holder 10 and the first elasticity guide pillar 5.Dilator body comprises passage 2, the hollow cylinder that passage 2 is both ends open, and on one end of passage 2, the vertical direction along away from passage 2 axis, is provided with outer shroud 1; On its other end, along the vertical direction away from passage 2 axis, be provided with and insert ring 3; The diameter of outer shroud 1 is greater than the diameter of inserting ring 3.Here outer shroud 1, passage 2 and insert ring and 3 can be integrated part, can be also split part, in the present embodiment preferred integral piece.Dilator body preferred elastomeric material or medical high polymer material are made, such as the material such as silica gel or Polyurethane Thermoplastic Elastomer.Can guarantee like this outer shroud 1, passage 2 and insert ring 3 all there is elastic deformation performance well, make it under the effect of external force, elastic deformation occurs, when external force disappears, can revert to original shape.When otch hour, insert ring 3 under the effect of external force, send in otch, after entering otch, its shape reverts to original shape, can be good otch is expanded completely.The first elasticity guide pillar 5 is hollow cavity, and one end is plane, is provided with the first through hole 7 in plane; Other end is the convex surface away from the first through hole 7, is provided with the first gap on convex surface.The first elasticity guide pillar 5 passes holder 10, and is fixed on holder 10; Holder 10 is for covering in outer shroud 1, and the first gap is placed in passage 2.One end of the first elasticity guide pillar 5 is set to convex surface, and on convex surface, is provided with the first gap, can make operating theater instruments insert intraperitoneal from the first through hole 7, and Intraabdominal gas can not be discharged from the first gap to the external world.Furthermore, by the end face at the first elasticity guide pillar 5, be provided with convex surface, can effectively play the effect of one-way air inlet, gas can be inflated to intraperitoneal by the first through hole 7 by operating theater instruments,, and Intraabdominal gas can not be discharged from the first gap.
As depicted in figs. 1 and 2, the air hermetic dilator that the present embodiment provides also comprises that the second elasticity guide pillar 6, the second elasticity guide pillars 6 are hollow cavity, and one end is plane, is provided with the second through hole 8 in plane; Other end is the convex surface away from the second through hole 8, is provided with the second gap on convex surface; The second elasticity guide pillar 6 passes holder 10, and is fixed on holder 10; The second gap is placed in described passage 2, and the aperture of the first through hole 7 is greater than the aperture of the second through hole 8.By being provided with the second elasticity guide pillar 6, can make different operating theater instruments enter intraperitoneal from different places, such as endoscope enters intraperitoneal from the first through hole 7, and operating theater instruments enter intraperitoneal from the second through hole 8.Design can effectively be avoided colliding with each other between different operating theater instruments like this.It is worth mentioning that, a kind of air hermetic dilator that the present embodiment provides also comprises seal cover 4; On seal cover 4, be provided with third through-hole, insert ring 3 through the third through-hole on seal cover 4, outer shroud 1 is placed between seal cover 4 and holder 10, and seal cover 4 is fixedly connected with holder 10.By being provided with seal cover 4, not only can holder 10 is further fixing, improve the stability in use of dilator; What is more important, can holder 10 and seal cover 4 combine, further play the effect of sealing, further prevented that Intraabdominal gas from discharging to the external world.Seal cover 4 can adopt any mode that is fixedly connected with well known in the art with holder 10, for example by buckle, connects or knob connects.In the present embodiment, on holder 10, towards the direction of inserting ring 3, be provided with cyclic lug, on the medial wall of cyclic lug, be provided with annular recess, on seal cover 4, towards the center away from seal cover 4, be provided with collar flange, collar flange inserts in annular recess, and seal cover 4 and holder 10 are fixed together.In addition, on the convex surface of the first elasticity guide pillar 5, it is all vertical with the first gap that the both sides in the first gap are provided with 9, two the first gripper shoes 9 of the first gripper shoe.On the convex surface of the second elasticity guide pillar 6, the both sides in the second gap are provided with the second gripper shoe, and two the second gripper shoes are all vertical with the second gap.By being provided with the first gripper shoe 9 and the second gripper shoe, can further prevent that Intraabdominal gas from discharging to the external world.It is to be noted, the first elasticity guide pillar 5 and the second elasticity guide pillar 6 are two, two the first elasticity guide pillars 5 are oppositely arranged, two the second elasticity guide pillars 6 are oppositely arranged, and the line of the projection of the axis of the projection of the axis of two the first elasticity guide pillars 5 on horizontal plane and two the second elasticity guide pillars 6 on horizontal plane forms a positive rhombus.
As depicted in figs. 1 and 2, the using method of the air hermetic dilator that the present embodiment provides is: first according to the size of operative site otch, select the dilator of suitable specifications and models, passage 2 diameters are preferably greater than the length of otch.Then, will insert ring 3 and be pressed into long and narrow ellipse, send in otch.In otch, insert ring 3 dependence self spring return and become original shape.Adjust outer shroud 1 position, correct passage 2 distortions, according to incision tissue's thickness by the both hands outer shroud 1 that inwardly overturns, progressively shorten passage 2 length so that black box be attached to around otch.Now, passage 2 is close to otch wall, inserts the inside and outside both sides that ring 3 and outer shroud 1 lay respectively at otch, is inserting under the traction of ring 3 and outer shroud 1, and it is that otch expands that passage 2 produces tension force, and operating theater instruments puts in intraperitoneal by the first through hole 7 and/or the second through hole 8.After operation technique, first, first seal cover 4 is opened to split extension device body and holder 10; Then with finger, from passage 2, put in, and fasten and insert ring 3 edge inserting ring 3 along the outside tractive of passage 2, take off dilator.
The air hermetic dilator that the present embodiment provides, while carrying out single-hole laparoscopic surgery, can effectively prevent gas leakage, reduce operating time and surgery cost, can to otch, expand uniformly, when surgical field of view is fully appeared simultaneously, can effectively prevent incision tissue's oozing of blood, reduce otch and infect, prevent the implantation tumor recurrence of operative incision, prevention otch is contaminated and redness, infection and anaphylaxis occur.And can prevent that operating theater instruments from, because misoperation causes damage to otch, because apparatus tractive, compressing cause operative incision skin edge downright bad, reducing wound and postoperative wound congestion in operation in avoiding performing the operation.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. an air hermetic dilator, is characterized in that, comprising: dilator body, holder and the first elasticity guide pillar;
Described dilator body comprises passage, the hollow cylinder that described passage is both ends open, and on one end of described passage, the vertical direction along away from described passage axis, is provided with outer shroud; On its other end, the vertical direction along away from described passage axis, is provided with and inserts ring; Described in being greater than, the diameter of described outer shroud inserts the diameter of ring; Described outer shroud, described passage and described in insert ring and all elastic deformation can occur;
Described the first elasticity guide pillar is hollow cavity, and one end is plane, is provided with the first through hole in described plane; Other end is the convex surface away from described the first through hole, is provided with the first gap on described convex surface; Described the first elasticity guide pillar passes described holder, and is fixed on described holder; Described holder is for covering in described outer shroud, and described the first gap is placed in described passage.
2. a kind of air hermetic dilator according to claim 1, is characterized in that, also comprises the second elasticity guide pillar, and described the second elasticity guide pillar is hollow cavity, and one end is plane, is provided with the second through hole in described plane; Other end is the convex surface away from described the second through hole, is provided with the second gap on described convex surface; Described the second elasticity guide pillar passes described holder, and is fixed on described holder; Described the second gap is placed in described passage, and the aperture of described the first through hole is greater than the aperture of described the second through hole.
3. a kind of air hermetic dilator according to claim 2, is characterized in that, also comprises seal cover; On described seal cover, be provided with third through-hole, described in insert ring through described third through-hole, described outer shroud is placed between described holder and described seal cover, described seal cover is fixedly connected with described holder.
4. a kind of air hermetic dilator according to claim 2, is characterized in that, on the convex surface of described the first elasticity guide pillar, the both sides in described the first gap are provided with the first gripper shoe, and two described the first gripper shoes are all vertical with described the first gap.
5. a kind of air hermetic dilator according to claim 4, is characterized in that, on the convex surface of described the second elasticity guide pillar, the both sides in described the second gap are provided with the second gripper shoe, and two described the second gripper shoes are all vertical with described the second gap.
6. a kind of air hermetic dilator according to claim 3, is characterized in that, on described holder, towards the described ring direction of inserting, is provided with cyclic lug, on the medial wall of described cyclic lug, is provided with annular recess; On described seal cover, the center towards away from described seal cover, is provided with collar flange; Described collar flange inserts in described annular recess, and described holder and described seal cover are fixed together.
7. a kind of air hermetic dilator according to claim 5, it is characterized in that, described the first elasticity guide pillar and described the second elasticity guide pillar are two, two described the first elasticity guide pillars are oppositely arranged, two described the second elasticity guide pillars are oppositely arranged, and the line of the projection of the axis of the projection of the axis of two described the first elasticity guide pillars on horizontal plane and two described the second elasticity guide pillars on horizontal plane forms a positive rhombus.
8. according to a kind of air hermetic dilator described in claim 1-7 any one, it is characterized in that, described outer shroud, described in insert ring and described passage be integrated part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376795.7U CN203408078U (en) | 2013-06-27 | 2013-06-27 | Airtight type expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376795.7U CN203408078U (en) | 2013-06-27 | 2013-06-27 | Airtight type expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203408078U true CN203408078U (en) | 2014-01-29 |
Family
ID=49971008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320376795.7U Expired - Fee Related CN203408078U (en) | 2013-06-27 | 2013-06-27 | Airtight type expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203408078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107713977A (en) * | 2017-11-16 | 2018-02-23 | 徐斌 | A kind of minimally invasive device for Via vagina operation |
| CN108634998A (en) * | 2018-05-04 | 2018-10-12 | 杜军 | A kind of Multifunction puncture extension fixture for laparoscopic surgery |
-
2013
- 2013-06-27 CN CN201320376795.7U patent/CN203408078U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107713977A (en) * | 2017-11-16 | 2018-02-23 | 徐斌 | A kind of minimally invasive device for Via vagina operation |
| CN108634998A (en) * | 2018-05-04 | 2018-10-12 | 杜军 | A kind of Multifunction puncture extension fixture for laparoscopic surgery |
| CN108634998B (en) * | 2018-05-04 | 2021-11-19 | 杜军 | Multifunctional puncture expanding device for laparoscopic surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |