CN102462517A - Cannula device for laparoscope operation - Google Patents
Cannula device for laparoscope operation Download PDFInfo
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- CN102462517A CN102462517A CN201010551990XA CN201010551990A CN102462517A CN 102462517 A CN102462517 A CN 102462517A CN 201010551990X A CN201010551990X A CN 201010551990XA CN 201010551990 A CN201010551990 A CN 201010551990A CN 102462517 A CN102462517 A CN 102462517A
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- sleeve body
- laparoscopic surgery
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Abstract
The invention relates to a cannula device for a laparoscope operation. The cannula device comprises a cannula body, at least one cylindrical through hole and a thread structure, wherein an extension part is arranged between a first end and a second end of the cannula body, the cylindrical through hole is communicated between the surface of the first end and the surface of the second end of the cannula body; and the thread structure is arranged on the surface of the extension part of the cannula body and can enable the cannula structure to be screwed into an abdominal cavity through a wound on an abdominal wall, so that the convenience for erecting the cannula device is increased, the operation time can be shortened, and the operation risk is reduced.
Description
Technical field
The present invention relates to a kind of casing bit that is used in laparoscopic surgery, particularly relate to a kind of casing bit that on a sleeve body outer wall, is provided with a helicitic texture, set up the convenience of casing bit so as to increase, and can reduce operating time, reduce operation risk.
Background technology
Traditional opening type operation; Must on stomach wall, cut not short together wound, just be able to undergo surgery, if the purpose of operation is to take out the intraperitoneal tumor; Then wound length also must be greater than 1.5 double-lengths of diameter of tumor, just have way that tumor is seen through wound and take out.So big wound not only can cause sufferer pain and body burden after surgery, more possibly stay the cicatrix that is difficult to recover.
In order to solve the shortcoming of aforementioned conventional opening type operation, laparoscopic surgery just is suggested, and fast-developing in recent years.The laparoscopic surgery of existing convention at first needs on stomach wall, to cut 3 to 4 0.5 to 1 centimeter duck eye, and casing bit that then again will a plurality of existing conventions is through duck eye and be arranged on the stomach wall.
Please with reference to as shown in Figure 1, the casing bit of an existing convention is arranged at the sketch map on the stomach wall, and the casing bit A100 of this existing convention is installed on this stomach wall A200, and the central authorities of the casing bit A100 of existing convention have a passage A110.
After the casing bit A100 of a plurality of conventions is installed on the stomach wall A200, just can respectively a plurality of operating theater instruments A300 be seen through the casing bit A100 of a plurality of existing conventions and carry out the intraperitoneal operation.Before undergoing surgery; The passage A110 that need utilize an aerating device (not shown) to see through the casing bit A100 of one of them existing convention earlier pours into carbon dioxide in the abdominal cavity A210 and causes artificial pneumoperitoneum; So as to abdominal cavity A210 is propped up, make and form an operation space in the abdominal cavity A210.Then again a minicam (not shown) and operating theater instruments A 300 are stretched in the operative space through the passage A110 of the casing bit A100 of other convention, to carry out the operation in the abdominal cavity A210.Utilize this laparoscopic surgery, not only can shorten the cure time of sufferer postoperative, operative scar is reduced, keep skin attractive in appearance.
Yet; Must on stomach wall A200, cut 3 to 4 minor cut or wounds owing to should have the laparoscopic surgery of convention now; And on each wound, install the casing bit A100 of an existing convention respectively; This mode will cause the increase of operating time, and a large amount of uses of the casing bit A100 of existing convention will cause hospital and sufferer burden financially.Moreover, though the cicatrix that laparoscopic surgery caused that should existing convention than traditional opening type operation come little, but still can on skin, produce several little cicatrixes, possibly can't be satisfied fully for sufferer.
Because above problem just has a kind of single-hole laparoscopic surgery to be developed.As its name suggests, this single-hole laparoscopic surgery is the laparoscopic surgery that only can cause a wound, and this wound is hidden near the umbilicus usually, and scar after the operation almost cannot see.
The casing bit of another existing convention is to undergo surgery and this single-hole laparoscopic surgery need be arranged in pairs or groups.Please with reference to as shown in Figure 2, be the sketch map of the casing bit of an improvement, be provided with among the casing bit B100 of this existing convention and a plurality ofly penetrate B110, and the zone is provided with an arc-shaped recess part B120 therebetween in the crack at two ends.Then please with reference to as shown in Figure 3; The casing bit B100 that is improvement is installed in the sketch map on the stomach wall B200; The casing bit B100 of this existing convention is sticked on the wound of stomach wall B200 with its arc-shaped recess part B120; Wherein a crack B110 can insert an aerating device B400 and carbon dioxide is injected abdominal cavity B210, and other cracks B110 can supply a minicam B500 and operating theater instruments B600 to stretch among the abdominal cavity B210 to undergo surgery.
The method of installing the casing bit B100 of this existing convention is earlier with force compresses volume beyond it (for example with hands to its application of force); The part that then will compress again sees through the wound of stomach wall B200 and fills among the abdominal cavity B210, just accomplishes the installing of the casing bit B100 of this convention.Yet this installation method bothers for medical personnel very much, and must install by extreme care, otherwise is corrupted to wound and abdominal cavity B210 internal easily.In addition; Owing to the casing bit B100 that should have convention now only is sticked on the wound of stomach wall B200 by the elastic restoring force of its arc-shaped recess part B120; This state receives the influence of external force easily and makes the casing bit B100 of existing convention loosening in operation technique; Cause the casing bit B100 of existing convention and the displacement between the stomach wall B200, and then the carrying out of influence operation.Moreover; When a plurality of crack B110 that the casing bit B100 that aerating device B400, minicam B500 and operating theater instruments B600 is inserted in this existing convention is provided with; Must impose bigger strength just is able to aerating device B400, minicam B500 and operating theater instruments B600 are inserted among a plurality of crack B110; But because the structure of crack B110 splits because of excessive external force makes it easily; Cause the casing bit B100 of existing convention to damage and can't re-use, and then increase expending of cost.
In view of this; A kind of casing bit that is used in laparoscopic surgery must be provided, make it be easy to be installed on the wound of stomach wall, and can be firm with stomach wall between engage; Installing for conduit also has convenience more, and then increases the smooth degree and the safety of operation.
This shows that the above-mentioned existing casing bit that is used in laparoscopic surgery obviously still has inconvenience and defective, and demands urgently further improving in structure and use.In order to solve the problem of above-mentioned existence; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see always that for a long time suitable design is developed completion, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of casing bit that is used in laparoscopic surgery of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
Main purpose of the present invention is; Overcome the defective that the existing casing bit that is used in laparoscopic surgery exists; And a kind of casing bit that is used in laparoscopic surgery of new structure is provided; Technical problem to be solved is to make its helicitic texture on the extension that is arranged at sleeve body, and rotation mode capable of using screws in casing bit partly in the abdominal cavity, makes the installing of casing bit convenient more, saves time and safety.
Another object of the present invention is to; A kind of casing bit that is used in laparoscopic surgery of new structure is provided; Technical problem to be solved is to make its helicitic texture and variation of extension sectional area on the extension that is arranged at sleeve body; Can make on the more firm wound that is fixed in stomach wall of casing bit, not be subject to influence and the displacement of external force, increase the safety of operation.
A purpose more of the present invention is; A kind of casing bit that is used in laparoscopic surgery of new structure is provided; Technical problem to be solved is to make its setting by cylindrical perforations; Can make conduit be more prone to be installed in the perforation, be difficult for causing perforation to split and the destructive envelope pipe unit, and then save the operation cost.
The object of the invention and solve its technical problem and adopt following technical scheme to realize.According to a kind of casing bit that is used in laparoscopic surgery that the present invention proposes, comprise at least: a sleeve body, its relative two ends are defined as one first end and one second end respectively, are the extensions of this sleeve body between this first end and this second end; At least one cylindrical perforations, it is arranged in the sleeve body, and is communicated between the surface and the surface of second end of first end of sleeve body; And a helicitic texture, be arranged on the surface of this extension of sleeve body; Wherein, second end of sleeve body can screw in the abdominal cavity via the wound of a stomach wall and along the curling up direction of this helicitic texture, and this extension is sticked on this wound of this stomach wall, and first end is revealed in the outside of stomach wall.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
The aforesaid casing bit that is used in laparoscopic surgery also comprises a Stop structure, is arranged at the edge of this first end of this sleeve body, and this Stop structure, screws in this abdominal cavity so as to avoiding this casing bit on the outer surface of this stomach wall in order to block fully.
The aforesaid casing bit that is used in laparoscopic surgery, the both sides of this Stop structure are respectively equipped with a fixing hole, these two fixing holes can supply a stitching thread to pass respectively, so as to this casing bit sutured on this outer surface of this stomach wall.
The aforesaid casing bit that is used in laparoscopic surgery, the material of this casing bit are rubber elastomers.
The aforesaid casing bit that is used in laparoscopic surgery, this extension of this sleeve body is provided with an annular recess portion, can supply this stomach wall to be sticked in here, increases the degree of stability that engages between this casing bit and the stomach wall.
The aforesaid casing bit that is used in laparoscopic surgery, the cross-sectional area of this extension of this sleeve body are reduced by the direction of this first end toward this second end haply.
The aforesaid casing bit that is used in laparoscopic surgery, the surface of this of this sleeve body first end forms the cambered surface of a depression, so as to increasing the elastic restoring force of sleeve body.
The aforesaid casing bit that is used in laparoscopic surgery, the surface of this of this sleeve body second end forms the cambered surface of a depression, so as to increasing the elastic restoring force of sleeve body.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, the casing bit that the present invention is used in laparoscopic surgery has advantage and beneficial effect at least:
The helicitic texture of the present invention on the extension that is arranged at sleeve body, rotation mode capable of using screws in casing bit partly in the abdominal cavity, makes the installing of casing bit convenient more, saves time and safety.
Helicitic texture and the variation of extension sectional area of the present invention on the extension that is arranged at sleeve body can make on the more firm wound that is fixed in stomach wall of casing bit, is not subject to the influence of external force and displacement increases the safety of operation.
The present invention can make conduit be more prone to be installed in the perforation by the setting of cylindrical perforations, is difficult for causing perforation to split and the destructive envelope pipe unit, and then saves the operation cost.
In sum, the present invention is used in the casing bit of laparoscopic surgery, the helicitic texture on the extension that is arranged at sleeve body, and rotation mode capable of using screws in casing bit partly in the abdominal cavity.The present invention has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of description, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is that the casing bit of existing convention is arranged at the sketch map on the stomach wall;
Fig. 2 is the sketch map of the casing bit of an improvement;
Fig. 3 is that the casing bit of this improvement is installed in the sketch map on the stomach wall;
Fig. 4 is a kind of side view that is used in the casing bit of laparoscopic surgery of the present invention's one first preferred embodiment;
Fig. 5 is a kind of axonometric chart that is used in the casing bit of laparoscopic surgery of this first preferred embodiment of the present invention;
Fig. 6 is a kind of axonometric chart that is used in another visual angle of casing bit of laparoscopic surgery of the present invention's first preferred embodiment;
Fig. 7 is a kind of profile that is used in the casing bit of laparoscopic surgery of the present invention's first preferred embodiment;
Fig. 8 A～Fig. 8 D is a kind of installing flow chart that is used in the casing bit of laparoscopic surgery of the present invention's first preferred embodiment;
Fig. 9 is the sketch map of an electrophotographic device;
Figure 10 is a kind of side view that is used in the casing bit of laparoscopic surgery of the present invention's one second preferred embodiment;
Figure 11 is that a kind of casing bit that is used in laparoscopic surgery of this second preferred embodiment of the present invention is installed in the sketch map on the stomach wall;
Figure 12 is a hot press forming technology step diagram; And
Figure 13 is a jetting formation process step diagram.
A100, B100: the casing bit A110 of existing convention: passage
A200, B200,140,240: stomach wall A210, B210,142,242: abdominal cavity
A300, B600,163: operating theater instruments B110: crack
B120: arc-shaped recess part B400: aerating device
B500: minicam 1,2: casing bit
100,200; 101: the first ends of sleeve body
End 101 ', 102 ' in 102: the second: the cambered surface of depression
103,203; Extension 110: cylindrical perforations
120,220: helicitic texture 130: Stop structure
131: fixing hole 141: wound
150: stitching thread 160: inflation/exhaust apparatus
161: simple type guide wire 162: electrophotographic device
1621: hand held module 1622: display module
1623: Handheld Division 1624: image pickup part
1625: microcamera 204: annular recess portion
310～340: the number of steps of hot press forming technology
410～430: the number of steps of jetting formation process
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To its specific embodiment of the casing bit that is used in laparoscopic surgery, structure, characteristic and the effect thereof that proposes according to the present invention, specify as after.
For reaching aforesaid purpose and effect, the inventor will have the casing bit of convention now and improve, and under constantly revising and adjusting, the beginning obtains a kind of casing bit that is used in laparoscopic surgery of the present invention.Now respectively with a kind of casing bit that is used in laparoscopic surgery of one first preferred embodiment of the present invention and one second preferred embodiment, architectural feature of the present invention and technical spirit are done detailed introduction.
At first please with reference to extremely shown in Figure 7 like Fig. 4; Fig. 4 is a kind of side view that is used in the casing bit of laparoscopic surgery of this first preferred embodiment of the present invention; Fig. 5 is a kind of axonometric chart that is used in the casing bit of laparoscopic surgery of the present invention's first preferred embodiment; Fig. 6 is a kind of axonometric chart that is used in another visual angle of casing bit of laparoscopic surgery of the present invention's first preferred embodiment, and Fig. 7 is a kind of profile that is used in the casing bit of laparoscopic surgery of the present invention's first preferred embodiment.
In first preferred embodiment, this casing bit 1 comprises a sleeve body 100, a plurality of cylindrical perforations 110, a helicitic texture 120 and a Stop structure 130, and the material of casing bit 1 is a rubber elastomer.
These sleeve body 100 relative two ends are defined as one first end 101 and one second end 102 respectively, are an extension 103 of sleeve body 100 between this first end 101 and this second end 102.First end 101 of sleeve body 100 and the surface of second end 102 all form the cambered surface 101 ', 102 ' of a depression, so as to increasing the elastic restoring force of sleeve body 100.Except the cambered surface of this depression 101 ', 102 ', first end 101 of sleeve body 100 and the surface of second end 102 also can form the cambered surface (not shown) of a protrusion, also can increase the elastic restoring force of sleeve body 100.In addition, the cross-sectional area of the extension 103 of sleeve body 100 is to be reduced by the direction of first end 101 toward second end 102 haply, by this structure sleeve body 100 is sticked on the wound of all size.
These a plurality of cylindrical perforations 110 are to be arranged in the sleeve body 100, and are communicated between the surface and the surface of second end 102 of first end 101 of sleeve body 100.
This helicitic texture 120 is to be arranged on the surface of this extension 103 of sleeve body 100.
This Stop structure 130 is the edges that are arranged at first end 101 of sleeve body 100, Stop structure 130 be in order to block on an outer surface of a stomach wall, screw in fully in the abdominal cavity so as to avoiding casing bit.The both sides of Stop structure 130 are respectively equipped with a fixing hole 131, and these two fixing holes 131 can supply a stitching thread to pass respectively, so as to the casing bit sutured on this outer surface of stomach wall.
Wherein, second end 102 of sleeve body 100 can screw in the abdominal cavity via this wound of this stomach wall and along the curling up direction of this helicitic texture 120, and this extension 103 is sticked on this wound of this stomach wall, and first end 101 is the outsides that are revealed in stomach wall.
, be a kind of installing flow chart that is used in the casing bit of laparoscopic surgery of the present invention's first preferred embodiment then please with reference to shown in Fig. 8 A, Fig. 8 B, Fig. 8 C and Fig. 8 D.At first, whether the doctor must be prior to cutting minor cut or wound 141 (cutting to peritoneal layer) of an about 2.5cm on the umbilicus of sufferer, and confirm to have or not peritoneum to be stained with glutinous situation generation.If the wound situation is normal, then casing bit of the present invention is positioned over this wound 141 places (shown in Fig. 8 A) with its second end 102.Because casing bit 1 of the present invention is adopt to give birth to doctor's level elastic rubbery body material to process, so structurally flexible, can nature strut wound 141, make wound 141 keep smooth.Then shown in Fig. 8 B, casing bit 1 is slowly screwed in the abdominal cavity 142 along its helicitic texture 120, and, casing bit 1 is fixed on the wound 141 of stomach wall 140 with its suitable position by the variation of extension 103 sectional areas.Then shown in Fig. 8 C; If patient be too obese or because of the operation needs; Can use stitching thread 150 to pass the fixing hole 131 of Stop structure 130 both sides respectively; And with its stitching and be fixed on the stomach wall 140 of wound 141 both sides, cause gas leak phenomenon by breaking away from the wound 141 of stomach wall 140 so as to preventing operation process middle sleeve device 1.At last shown in Fig. 8 D; With an inflation/exhaust apparatus 160 and a plurality of simple type guide wire 161 rotational fixation in a plurality of cylindrical perforations 110; Then utilize this inflation/exhaust apparatus 160 in abdominal cavity 142, to inflate with the pressure of 15～20mmHG; When treating abdominal distension to the certain altitude of sufferer, just can an electrophotographic device 162 and a plurality of operating theater instruments 163 be passed in these a plurality of simple type guide wires 161 and got in the abdominal cavity 142 to undergo surgery.Wherein, inflation/exhaust apparatus 160 also can be in order to get rid of in the operation because of electricity burns the smog that produces, so as to keeping surgical field of view.
In the present invention's first preferred embodiment, the quantity of the cylindrical perforations 110 that is provided with in the casing bit 1 and pore size can be selected different collocation modes according to the difference of operative site and operation content.For example one has the casing bit 1 that three apertures are all the cylindrical perforations 110 of 5mm, and these three cylindrical perforations 110 can be used as an abdominal part air-filled pore, an electrophotographic device handle hole and an operation instrumentation hole respectively.For example one have the casing bit 1 that four apertures are all the cylindrical perforations 110 of 5mm again, these four cylindrical perforations 110 can be used as an abdominal part air-filled pore, an electrophotographic device handle hole and two operating theater instruments handle holes respectively.In addition, in the aforementioned casing bit 1 with three or four cylindrical perforations 110, the aperture of one of them cylindrical perforations 110 also can be made as 10mm, carries out the operation of particular procedure but the long-pending bigger operating theater instruments of its donor stretches into.
Then please with reference to as shown in Figure 9; It is the sketch map of an electrophotographic device; This electrophotographic device 162 comprises a hand-held module 1621 and a display module 1622, and this hand held module 1621 comprises a Handheld Division 1623 and an image pickup part 1624, and the top of this image pickup part 1624 is provided with a microcamera 1625; And image pickup part 1624 is structures of a flexible, the photography in abdominal cavity 142 so as to seeing through casing bit 1.In addition, be with the wireless mode data transmission between this hand held module 1621 and this display module 1622, transfer to demonstration in the display module 1622 so as to the image that this microcamera 1625 is photographed with wireless mode.
, be a kind of side view that is used in the casing bit of laparoscopic surgery of this second preferred embodiment of the present invention then please with reference to shown in figure 10.The structure of the casing bit 2 of second preferred embodiment casing bit 1 with first preferred embodiment haply is identical, so something in common just repeats no more.Difference is that in second preferred embodiment, the extension 203 of a sleeve body 200 is provided with an annular recess portion 204, can supply a stomach wall to be sticked in here, increases the degree of stability that engages between this casing bit 2 and the stomach wall.
, be that a kind of casing bit that is used in laparoscopic surgery of the present invention's second preferred embodiment is installed in the sketch map on the stomach wall please with reference to shown in figure 11.Visible among the figure thus; After casing bit 2 screws in abdominal cavity 242 with rotation mode equally; Stomach wall 240 can be sticked in this annular recess portion 204 on this extension 203; Can't be easily because stomach wall 240 is limited by annular recess portion 204 up or down loosening, whereby can be firm with fixing between stomach wall 240 and the casing bit 2, increase the safety of performing the operation.
For the casing bit of the present invention's first preferred embodiment and second preferred embodiment, its manufacture hot-forming and ejection formation dual mode capable of using is reached, and below does introduction for this dual mode respectively.
With reference to shown in figure 12, be a hot-forming fabrication steps diagram please, the step of this hot press forming technology comprises: offer a heat pressing and molding mold (step 310); One rubber elastomeric material (step 320) is provided, and wherein the hardness of this rubber elastomeric material is 5～80 degree, and rubber elastomeric material can add the foaming agent of proper proportion, to increase the soft degree of casing bit; Rubber elastomeric material is positioned in this heat pressing and molding mold (step 330); And with 100 ℃～200 ℃, 2～15 minutes and suitably pressure carry out hot-forming (step 340) for rubber elastomeric material.
With reference to shown in figure 13, be jetting formation process step diagram please, the step of this jetting formation process comprises: offer an ejection shaping die (step 410); One rubber elastomeric material (step 420) is provided, and wherein the hardness of this rubber elastomeric material is 5～80 degree, and rubber elastomeric material can add the foaming agent of proper proportion, to increase the soft degree of casing bit; And utilize a Jet forming machine that rubber elastomeric material is squeezed to be incident upon in this ejection shaping die (step 430), wherein, the temperature of this Jet forming machine is 100 ℃～200 ℃, molding time is 2～15 minutes.
After being elaborated for the present invention via foregoing, can learn that the present invention has with the purgation advantage:
The helicitic texture of the present invention on the extension that is arranged at sleeve body, rotation mode capable of using screws in casing bit partly in the abdominal cavity, makes the installing of casing bit convenient more, saves time and safety.
Helicitic texture and the variation of extension sectional area of the present invention on the extension that is arranged at sleeve body can make on the more firm wound that is fixed in stomach wall of casing bit, is not subject to the influence of external force and displacement increases the safety of operation.
The present invention can make conduit be more prone to be installed in the perforation by the setting of cylindrical perforations, is difficult for causing perforation to split and the destructive envelope pipe unit, and then saves the operation cost.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (8)
1. a casing bit that is used in laparoscopic surgery is characterized in that, comprises at least:
One sleeve body, its relative two ends are defined as one first end and one second end respectively, are the extensions of this sleeve body between this first end and this second end;
At least one cylindrical perforations, it is arranged in the sleeve body, and is communicated between the surface and the surface of second end of first end of sleeve body; And
One helicitic texture is arranged on the surface of this extension of sleeve body;
Wherein, second end of sleeve body can screw in the abdominal cavity via the wound of a stomach wall and along the curling up direction of this helicitic texture, and this extension is sticked on this wound of this stomach wall, and first end is revealed in the outside of stomach wall.
2. the casing bit that is used in laparoscopic surgery according to claim 1; It is characterized in that; Also comprise a Stop structure; Be arranged at the edge of this first end of this sleeve body, this Stop structure, screws in this abdominal cavity so as to avoiding this casing bit on the outer surface of this stomach wall in order to block fully.
3. the casing bit that is used in laparoscopic surgery according to claim 2; It is characterized in that; The both sides of this Stop structure are respectively equipped with a fixing hole, and these two fixing holes can supply a stitching thread to pass respectively, so as to this casing bit sutured on this outer surface of this stomach wall.
4. the casing bit that is used in laparoscopic surgery according to claim 1 is characterized in that, the material of this casing bit is a rubber elastomer.
5. the casing bit that is used in laparoscopic surgery according to claim 1 is characterized in that, this extension of this sleeve body is provided with an annular recess portion, can supply this stomach wall to be sticked in here, increases the degree of stability that engages between this casing bit and the stomach wall.
6. the casing bit that is used in laparoscopic surgery according to claim 1 is characterized in that, the cross-sectional area of this extension of this sleeve body is reduced by the direction of this first end toward this second end haply.
7. the casing bit that is used in laparoscopic surgery according to claim 1 is characterized in that, the surface of this of this sleeve body first end forms the cambered surface of a depression, so as to increasing the elastic restoring force of sleeve body.
8. the casing bit that is used in laparoscopic surgery according to claim 1 is characterized in that, the surface of this of this sleeve body second end forms the cambered surface of a depression, so as to increasing the elastic restoring force of sleeve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010551990.XA CN102462517B (en) | 2010-11-17 | 2010-11-17 | Cannula device for laparoscope operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010551990.XA CN102462517B (en) | 2010-11-17 | 2010-11-17 | Cannula device for laparoscope operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102462517A true CN102462517A (en) | 2012-05-23 |
| CN102462517B CN102462517B (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010551990.XA Expired - Fee Related CN102462517B (en) | 2010-11-17 | 2010-11-17 | Cannula device for laparoscope operation |
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| CN106859708A (en) * | 2017-03-14 | 2017-06-20 | 张子超 | A kind of laparoscopic cannula |
| CN106037935B (en) * | 2016-07-12 | 2018-09-25 | 天津大学 | Rigidity controllable tool mechanism for single hole surgical instrument |
| CN108742731A (en) * | 2018-06-08 | 2018-11-06 | 王振宁 | TaTME per anum operating platforms |
| CN110585563A (en) * | 2019-09-29 | 2019-12-20 | 山东大学齐鲁医院(青岛) | Drainage tube fixing and drainage tube opening closing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106859708A (en) * | 2017-03-14 | 2017-06-20 | 张子超 | A kind of laparoscopic cannula |
| CN108742731A (en) * | 2018-06-08 | 2018-11-06 | 王振宁 | TaTME per anum operating platforms |
| CN110585563A (en) * | 2019-09-29 | 2019-12-20 | 山东大学齐鲁医院(青岛) | Drainage tube fixing and drainage tube opening closing device |
| CN110585563B (en) * | 2019-09-29 | 2022-02-08 | 山东大学齐鲁医院(青岛) | Drainage tube fixing and drainage tube opening closing device |
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| CN102462517B (en) | 2014-01-29 |
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