CN208958189U - A kind of laparoscopic surgery trailer system - Google Patents

Abstract

The utility model relates to a kind of laparoscopic surgery trailer system, the trailer system includes towing bracket and tractor；The both ends of the tractor are suspended on towing bracket；Its advantage is shown: a kind of laparoscopic surgery trailer system of the utility model, can avoid bacterium infection, build chamber height it is adjustable, the operating space divided the exposure visual field, do not influence personnel in art, chamber can be built rapidly and can flexibly build chamber as needed, medical device product can be become, as special equipment in gasless laparoscope, have broad application prospects.

Description

A kind of laparoscopic surgery trailer system

Technical field

The utility model relates to the field of medical instrument technology, specifically, being a kind of laparoscopic surgery trailer system.

Background technique

With stepping up for medical technology, more and more diseases can implement Minimally Invasive Surgery by laparoscopic technique and take Obtain optimum curative effect.Space needed for laparoscopic technique can provide surgical procedure by manufacture C02 artificial pneumoperitoneum, but due to C02 gas Abdomen can the complication such as secondary hypercapnia, air embolism, stasis of blood stream so that this technology is in histoorgan undeveloped mature Children, gravid woman and merge basis disease gerontal patient in application be restricted.Gas-less laparoscopy is minimally invasive neck The important technology in domain provides operating space using external mechanical tensile forces for operation, does not depend on artificial pneumoperitoneum, reduce C02 pneumoperitoneum Related complication, make there is Minimally Invasive Surgery indication but not be resistant to general anesthesia and pneumoperitoneum related complication patient be also subjected to it is minimally invasive Treatment, has widened Minimally Invasive Surgery indication.Gas-less laparoscopy technology plays extremely important work in abdominal operation at present With.

Structure in the prior art about laparoscopic surgery trailer system include towing bracket and and tractor, art Chinese medicine It is raw that in practical operation, the following defects and deficiencies exist:

1. structure is complicated for towing bracket in the prior art, it has not been convenient to it sterilizes, is easy infection, especially laparoscopic surgery, Need to guarantee strict sterilization disinfecting action, otherwise, germ enters abdominal cavity, can cause a series of infection, there are security risks.

2. the height of the hanging hook of towing bracket in the prior art is fixed setting, height cannot be adjusted as needed Degree, i.e., when building chamber, cannot raise stomach wall as needed, cannot sufficiently expose the visual field, influence surgical procedure.

3. the crossbeam position of towing bracket in the prior art is fixed setting, adjusting cannot be planar rotated, is accounted for According to the operating space of personnel in art, for example, when in crossbeam side, operation needs to change to crossbeam other side and operated in art, It needs to be operated around towing bracket to other side, cannot directly rotate crossbeam, to be operated to the side, influence The operating space of personnel in art.

4. tractor in the prior art is usually the structure types such as crosswise, umbrella shape, because of crosswise, umbrella shape and abdomen Wall cannot be bonded completely, and there are sharp contour structures, this easily causes injury of abdominal wall.

5. tractor in the prior art is to shrink merging abdomen, then carries out expansion support abdomen and build chamber, build chamber behaviour Make cumbersome, it is not rapid to build chamber, influences procedure efficiency.

6. tractor in the prior art, when building chamber and the support of stomach wall is rigid support, and stomach wall belongs to wriggling Tissue, cannot comply with abdominal wall tissue

Chinese patent literature CN200720044964.1, the applying date 20071120, patent name are as follows: gas-less laparoscopy hand Art suspension apparatus discloses a kind of gasless laparoscope suspension apparatus, and stomach wall, setting one are lifted by the way of the lifting of outside A perpendicular type bracket, upright bar activity are fixed, and multiple hooks are arranged on cross bar, and a chaining is arranged, and upper end link is suspended on one On a hook, lower end link is connected on the equalization point of a gate frame crossbeam, fixed Ke of the vertical pawl end activity of the two of gate frame Family name's needle.As long as will need to be inserted into Ke Shi needle at the stomach wall position sling and be pierced by, and the Ke Shi needle both ends outside stomach wall will be exposed at The two vertical pawl end activities for protruding into gate frame compress, and pass through the height of lifting chaining adjustment lifting stomach wall.

Above patent document can remove the air-tightness requirement using carbon dioxide gas filling to stomach wall from, so that in laparoscope The requirement of surgical instrument is substantially reduced in operation, while when not using carbon dioxide as stomach wall filling gas, to anesthesia Requirement also decrease.But bacterium infection, the sufficiently exposed visual field, the operation for not influencing personnel in art are avoided about a kind of Space can build rapidly chamber, can flexibly build the technical solution of chamber as needed then without corresponding open.

In conclusion a kind of operating space for avoiding bacterium infection, sufficiently exposing the visual field, not influencing personnel in art is needed, The laparoscopic surgery trailer system that chamber can be built rapidly, can flexibly build chamber as needed.And it is drawn about this laparoscopic surgery System yet there are no report.

Summary of the invention

The purpose of this utility model be to provide it is a kind of avoid bacterium infection, sufficiently expose the visual field, do not influence personnel in art Operating space, the laparoscopic surgery trailer system that chamber can be built rapidly, can flexibly build chamber as needed.

To achieve the above object, the technical solution of the utility model is:

A kind of laparoscopic surgery trailer system, the trailer system include towing bracket and tractor；The traction The both ends of device are suspended on towing bracket；The towing bracket includes crossbeam, vertical bar, hanging hook, fixing clamp, adjuster； Described crossbeam one end is connected by the upper end of rotating mechanism and vertical bar；The other end of the vertical bar is by way of grafting It is connected on fixing clamp；The lateral surface of the crossbeam and vertical bar has a cable clamping interface, and the free end of crossbeam and perpendicular The upper end of straight-bar offers transition card slot；The adjuster is equipped with hook, and hook is matched with link, and link is installed in drawing One end of line, drag wire from the cable clamping interface on the cable clamping interface that link end is sequentially clamped in vertical bar and transition card slot, crossbeam with And transition card slot, it is stretched out after the transition card slot being pierced by crossbeam straight down, and be fixedly connected with hanging hook；The adjuster includes Shell, retraction handles, driving gear, driven gear, connecting shaft, storage reel；The center of the driving gear is fixedly connected Retraction handles, driving gear and driven gear are the mode of engagement connection；Pass through between the driven gear and storage reel Connect axis connection；Shrinkage front is accommodated on the storage reel, the free-end of shrinkage front connects hook.

As a kind of perferred technical scheme, the rotating mechanism includes the first rotor and the second rotor；It is described First rotor is fixed in vertical bar, and second rotor is fixed on crossbeam；First rotor and the second rotation Connection between body is hinged.

As a kind of perferred technical scheme, the transition card slot is arc-shaped.

As a kind of perferred technical scheme, the abdominal cavity abdominal tractor includes draught line, draw bar；Described leads Drawing bar includes tractive unit, the first pulling part, the second pulling part, puncture portion；The tractive unit portion is between the first pulling part and Between two pulling parts；The distal end of first pulling part connects puncture portion, is equipped with draught line in the puncture portion；The traction Line is the structure type of single cord.

As a kind of perferred technical scheme, first pulling part and the second pulling part are all made of hard material manufacture It forms；The tractive unit is fabricated using flexible material；The length of the tractive unit is 5-8cm；First pulling part, Second pulling part, tractive unit are Integratively formed, and cross section is circle, and diameter dimension specification is 0.2-0.3cm.

As a kind of perferred technical scheme, the towing bracket further includes transverse shifting adjusting rod；It is described laterally to move One end of dynamic adjusting rod and rotating mechanism connects；The transverse shifting adjusting rod is equipped with embeded slot, and transverse shifting adjusting rod Outer peripheral surface on be socketed with fixation spring tab.

As a kind of perferred technical scheme, the trailer system also sets up a sterility protection set, the sterility protection Set is wrapped on crossbeam and vertical bar.

The utility model advantage is:

1, a kind of laparoscopic surgery trailer system of the utility model, can avoid that bacterium infection, to build chamber height adjustable, point sudden and violent The dew visual field, the operating space for not influencing personnel in art, can build rapidly chamber and can flexibly build chamber as needed, can become Medical treatment device Tool product becomes special equipment in gasless laparoscope, has broad application prospects；

2, the crossbeam 11 and vertical bar 12 are connect by rotating mechanism 3, enable 11 opposed vertical bar 12 of crossbeam It rotates in the horizontal plane, the personnel in art that are adjustable as provide operating space, and personnel in art is facilitated to carry out relevant operation；

3, hanging hook 13 is connect by drag wire 17 with adjuster 18, in a state of use, by control regulator 18 Retraction handles 181, it will be able to the height for adjusting hanging hook 13 can raise stomach wall that is, when building chamber as needed, sufficiently sudden and violent Reveal the visual field；

4, straight-bar is fixed in fixed link by inserting mode, and plug and play is easy to operate, and fixing clamp 14 can be straight The existing surgical fastening clip 14 of selecting, selection is convenient, at low cost；

5, it is equipped with sterility protection set, can avoid bacterium infection, can be used without disinfection；

6, the whole linear structure type of tractor 2, it is only necessary to it is placed in from a notch, another notch is pierced by, Personnel can flexibly build chamber as needed in art, there is no chamber blind area is built, sufficiently expose the visual field；Whole operation process is quick, simply, It only needs to clamp draught line 21 in abdominal cavity to pull out one end of draw bar 22, it is quick to build chamber, improves working efficiency；

7, the tractive unit 223 of draw bar 22 is made using flexible material, and flexibility is good, the tractive unit 223 of flexibility It can be bonded with stomach wall, abdominal wall tissue is avoided to damage；On the other hand, so that the first pulling part 221, the second pulling part 222 and Tractive unit 223 is capable of forming V-arrangement when building chamber, and bilateral stomach wall is effectively avoided to assemble to centre, squeezes intestinal tube and concentrates to centre, leads It causes operative space to become smaller, narrows.

Detailed description of the invention

Attached drawing 1 is a kind of laparoscopic surgery trailer system structural schematic diagram of the utility model.

Attached drawing 2 is towing bracket structural schematic diagram.

Attached drawing 3 is the partial enlargement structural representation of the connection of crossbeam and vertical bar.

Attached drawing 4 is transition card slot and drag wire connection status diagram.

Attached drawing 5 is theory structure schematic diagram inside adjuster.

Attached drawing 6 is retractor structures schematic diagram.

Attached drawing 7 is to link up with to connect partial schematic diagram with drag wire.

Attached drawing 8 is the use state diagram of laparoscopic surgery trailer system.

Specific embodiment

The utility model is further described below with reference to embodiment and referring to attached drawing.

Appended drawing reference involved in attached drawing and component part are as follows:

1. 11. crossbeam of towing bracket

12. the 121. vertical bar upper half of vertical bar

122. 13. hanging hook of vertical bar lower half

14. 141. jack of fixing clamp

15. cable clamping interface

16. 17. drag wire of transition card slot

171. link, 18. adjuster

181. retraction handles, 182. driving wheel

183. driven wheel, 184. connecting shaft

185. storage 186. shrinkage fronts of reel

187. 2. tractors of hook

21. 22. draw bar of draught line

221. first pulling part, 222. second pulling part

223. tractive unit, 224. puncture portion

3. 31. first rotor of rotating mechanism

32. 4. transverse shifting adjusting rod of the second rotor

41. 42. embeded slot of fixation spring tab

Fig. 1 is please referred to, Fig. 1 is a kind of laparoscopic surgery trailer system structural schematic diagram of the utility model.A kind of abdominal cavity Videoendoscopic surgery trailer system, the trailer system include towing bracket 1 and tractor 2；The both ends 4 of the tractor 2 are hung On towing bracket 1.

Referring to figure 2., Fig. 2 is 1 structural schematic diagram of towing bracket.The towing bracket 1 includes crossbeam 11, vertical bar 12, hanging hook 13, fixing clamp 14, adjuster 18；Described 11 one end of crossbeam is connected by the upper end of rotating mechanism 3 and vertical bar 12 It connects；The other end of the vertical bar 12 is connected on fixing clamp 14 by way of grafting；The crossbeam 11 and vertical bar 12 lateral surface has cable clamping interface 15, and the free end of crossbeam 11 and the upper end of vertical bar 12 offer transition card slot 16；The adjuster 18 is equipped with hook 187, and hook 187 is matched with link 171, and link 171 is installed in the one of drag wire 17 End, drag wire 17 is from the card on the cable clamping interface 15 and transition card slot 16 that 171 end of link is sequentially clamped in vertical bar 12, crossbeam 11 Wire casing 15 and transition card slot 16 stretch out after the transition card slot 16 being pierced by crossbeam 11 straight down, and are fixedly connected with hanging hook 13；The towing bracket 1 further includes transverse shifting adjusting rod 4；One end of the transverse shifting adjusting rod 4 and rotating mechanism 3 Connection；The transverse shifting adjusting rod 4 is equipped with embeded slot 42, and fixed bullet is socketed on the outer peripheral surface of transverse shifting adjusting rod Piece 41.

Referring to figure 3., Fig. 3 is the partial enlargement structural representation of the connection of crossbeam 11 and vertical bar 12.The rotation Mechanism 3 includes the first rotor 31 and the second rotor 32；First rotor 31 is fixed in vertical bar 12, and described second Rotor 32 is fixed on crossbeam 11；Connection between first rotor 31 and the second rotor 32 is hinged.

Referring to figure 4., Fig. 4 is transition card slot 16 and 17 connection status diagram of drag wire.The transition card slot 16 is in It is arc-shaped.

Referring to figure 5., Fig. 5 is 18 inside theory structure schematic diagram of adjuster.The adjuster 18 includes shell, shrinks hand Handle 181, driving gear 182, driven gear 183, connecting shaft 184, storage reel 185；The center of the driving gear 182 is solid Surely retraction handles 181 are connected, driving gear 182 and driven gear 183 are the mode of engagement connection；The driven gear 183 It is connect between storage reel 185 by connecting shaft 184；Shrinkage front 186, shrinkage front are accommodated on the storage reel 185 186 free-end connection hook 187.

Fig. 6 is please referred to, Fig. 6 is 2 structural schematic diagram of tractor.The abdominal cavity abdominal tractor 2 includes draught line 21, leads Draw bar 22；The draw bar 22 includes tractive unit 223, the first pulling part 221, the second pulling part 222, puncture portion 224；It is described Tractive unit 223 between the first pulling part 221 and the second pulling part 222；The distal end of first pulling part 221 connects Puncture portion 224 is equipped with draught line 21 in the puncture portion 224；The draught line 21 is the structure type of single cord.

First pulling part 221 and the second pulling part 222 is all made of hard material and is fabricated；The tractive unit 223 are fabricated using flexible material；The length of the tractive unit 223 is 5-8cm；First pulling part 221, second lifts Portion 222, tractive unit 223 are Integratively formed, and cross section is circle, and diameter dimension specification is 0.2-0.3cm.

As a preference, the draught line 21 is soft draught line 21, specific requirement is as follows: pull resistance is strong, color Can for blue or black so that it is intraperitoneal easily with identification.Wherein in order to meet the strong characteristic of tension shape, it is not only limited to above-mentioned Nylon wire, be also possible to carbon fiber etc..

First pulling part 221 and the second pulling part 222 are preferably soft, and pull resistance is strong, can there is certain retractility.

223 quality of tractive unit is harder, slightly elastic, such as uses rigid plastics, can lift with the first pulling part and second It combines together in portion.

224 quality of puncture portion is harder, in laparoscope (Trocar) puncture, is also possible to metal.

It should be understood that

The crossbeam 11 is connect with vertical bar 12 by rotating mechanism 3, and 11 opposed vertical bar 12 of crossbeam is existed Horizontal rotation in surface, in the actual operation process, when in art personnel need when the other side of crossbeam 11 operates I, be not necessarily to It walks about around crossbeam 11 to the side that needs operate and is operated, it is only necessary to be rotated crossbeam 11, energy vacating space, side Just personnel operate in art.

The rotating mechanism 3 includes the first rotor 31 and the second rotor 32, the first rotor 31 and the second rotor It is hinged form between 32；By articulated form, so that crossbeam 11 realizes that force rotates manually, does not exert a force manually and does not turn It is dynamic, convenient for controlling the position of crossbeam 11.

The hanging hook 13 is connect by drag wire 17 with adjuster 18, in a state of use (see Fig. 8), passes through control Retraction handles 181 on adjuster 18, it will be able to which the height for adjusting hanging hook 13 can be raised as needed that is, when building chamber Stomach wall sufficiently exposes the visual field, facilitates surgical procedure.

Cable clamping interface 15 is equipped on the crossbeam 11 and vertical bar 12, the design of transition card slot 16, cable clamping interface 15 is made With being to provide track for drag wire 17, transition card slot 16 is to change winding direction for drag wire 17.It is in by the design of transition card slot 16 It is arc-shaped, so that the stickiness in commutation of drag wire 17 is good, will not dig outward.

The effect of 4 design scheme of transverse shifting adjusting rod is: by laterally free movement convenient for tune suspensory retractor Position it is fixed to pass through fixation spring tab 41 to be directed at field of operation, while after crossbeam position is adjusted in place.Lateral adjustments The outer surface of bar 4 is equipped with striped, for increasing frictional force, so that 41 locking effect of fixation spring tab is definite；The lateral adjustments bar 4 It is equipped with embeded slot 42, is passed through convenient for drag wire 17.

The adjuster 18 include shell, retraction handles 181, driving gear 182, driven gear 183, connecting shaft 184, Reel 185 is stored, when needing to raise the height of hanging hook 13, by rotating retraction handles 181, driving gear 182 starts to turn It is dynamic, it is connected because driving gear 182 is engaged with driven gear 183, driven gear 183 is also with synchronous rotation, once driven tooth Wheel 183 starts shaft, transmits the movement by connecting shaft 184, so that storage reel 185 starts turning, stores reel 185 Rotation, can be discharged or be shunk to shrinkage front 186, to realize the adjusting to 13 height of hanging hook.

The vertical bar 12 is fixed in fixed link by inserting mode, and plug and play is easy to operate, and fixed Folder 14 can directly select existing surgical fastening clip 14, and selection is convenient, at low cost.Wherein, the tool of vertical bar 12 and fixing clamp 14 Attachment structure mode is as follows: vertical bar 12 is equipped with the vertical bar upper half 121 and vertical bar lower half close to one end of fixing clamp 14 Portion 122；The fixing clamp 14 is equipped with jack 141, which is circle, and vertical bar lower half 122 is threaded through jack In 141, and the outer diameter of vertical bar lower half 122 is suitable with 141 diameter of jack；The effect of the design scheme is: ensureing cable clamping interface 15 are at vertical state, are able to bear external force, and can rotate；The diameter of the vertical bar lower half 122 is less than vertical The diameter of the bar upper half 121, and 121 diameter of the vertical bar upper half is greater than the diameter of jack 141, the effect of the design method is: Prevent vertical bar 12 from gliding.

In order to avoid bacterium infection, a settable sterility protection set, the sterility protection set is wrapped in crossbeam 11 and vertical On bar 12, to realize sterilization functions, can it can be used without disinfection.

The draught line 21 is single cord, and structure is simple, easy to make；Draught line 21 is preferably nylon wire, is had good Good toughness, will not be by pinch off, and nylon material is good medical material, to human body without infection.

The draw bar 22 includes the first pulling part 221, the second pulling part 222, tractive unit 223, puncture portion 224；Its In, tractive unit 223 is made using flexible material, and flexibility is good, and on the one hand it is to comply with abdomen that effect mainly includes two aspects that Wall tissue, because abdominal wall tissue is wriggling tissue, the tractive unit 223 of flexibility can be bonded with stomach wall, and abdominal wall tissue is avoided to damage； On the other hand, so that the first pulling part 221, the second pulling part 222 and tractive unit 223 are capable of forming V-arrangement when building chamber, i.e., The suspension force that first pulling part 221 and the second pulling part 222 apply is two sides dispersion, effectively avoids bilateral stomach wall poly- to centre Collection squeezes intestinal tube and concentrates to centre, causes operative space to become smaller, narrow.And cross or umbrella are either used in the prior art Shape, when building chamber because tractive unit 223 is made of hard material, two sides suspension force forms U-shape, the suspension force meeting of U-shape Bilateral stomach wall is assembled to centre, squeezes intestinal tube and concentrates to centre, the operative space partner that becomes smaller is caused to narrow.

The length dimension specification of the tractive unit 223 is 5-8cm, which be set as according to clinical experience, should The abdominal cavity established under dimensions can sufficiently expose the visual field, meet the needs in operation manipulation space.

First pulling part 221 and the second pulling part 222 are made using hard material, have centainly hard Degree has guiding role, handling good, is convenient for fast run-up chamber.

First pulling part 221, the second pulling part 222 and the tractive unit 223 is Integratively formed, and cross-section Face is circle, and diameter dimension specification is 0.2-0.3cm, and corresponding required notch is small, has minimal invasive, reduces patient suffering.

The puncture portion 224 of the draw bar 22 selects hard material or metal material to be made, convenient for from notch It punctures.

A kind of laparoscopic surgery trailer system of the utility model, can avoid bacterium infection, build chamber height it is adjustable, point exposure The visual field, the operating space for not influencing personnel in art can build rapidly chamber and can flexibly build chamber as needed, can become medical instrument Product becomes special equipment in gasless laparoscope, has broad application prospects；The crossbeam 11 and vertical bar 12 It is connected by rotating mechanism 3,11 opposed vertical bar 12 of crossbeam is rotated in the horizontal plane, the personnel in art that are adjustable as mention For operating space, personnel in art is facilitated to carry out relevant operation；Hanging hook 13 is connect by drag wire 17 with adjuster 18, is being used Under state, pass through the retraction handles 181 in control regulator 18, it will be able to the height for adjusting hanging hook 13, i.e., when building chamber, energy It is enough to raise stomach wall as needed, sufficiently expose the visual field；Straight-bar is fixed in fixed link by inserting mode, plug and play, It is easy to operate, and fixing clamp 14 can directly select existing surgical fastening clip 14, selection is convenient, at low cost；Equipped with sterility protection Set can avoid bacterium infection, can be used without disinfection；The whole linear structure type of tractor 2, it is only necessary to from a notch Merging, another notch are pierced by, and personnel can flexibly build chamber as needed in art, and there is no chamber blind area is built, sufficiently exposure is regarded It is wild；Whole operation process is quick, simply, it is only necessary to and draught line 21 is clamped in abdominal cavity pulls out one end of draw bar 22, It is quick to build chamber, improves working efficiency；The tractive unit 223 of draw bar 22 is made using flexible material, and flexibility is good, flexibility Tractive unit 223 can be bonded with stomach wall, avoid abdominal wall tissue from damaging；On the other hand, so that the first pulling part 221, second mentioning Drawing portion 222 and tractive unit 223 are capable of forming V-arrangement when building chamber, and bilateral stomach wall is effectively avoided to assemble to centre, squeeze intestinal tube It is concentrated to centre, causes operative space to become smaller, narrow.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art Art personnel can also make several improvement and supplement without departing from the principle of this utility model, these are improved and supplement Also it should be regarded as the protection scope of the utility model.

Claims (7)

1. a kind of laparoscopic surgery trailer system, which is characterized in that the trailer system includes towing bracket and tractor；Institute The both ends for the tractor stated are suspended on towing bracket；The towing bracket include crossbeam, vertical bar, hanging hook, fixing clamp, Adjuster；Described crossbeam one end is connected by the upper end of rotating mechanism and vertical bar；The other end of the vertical bar is by inserting The mode connect is connected on fixing clamp；The lateral surface of the crossbeam and vertical bar has cable clamping interface, and the free-end of crossbeam Portion and the upper end of vertical bar offer transition card slot；The adjuster is equipped with hook, and hook is matched with link, and link is solid It is located at one end of drag wire, drag wire is from the cable clamping interface that link end is sequentially clamped in vertical bar and transition card slot, crossbeam Cable clamping interface and transition card slot stretch out after the transition card slot being pierced by crossbeam straight down, and are fixedly connected with hanging hook；The tune Section device includes shell, retraction handles, driving gear, driven gear, connecting shaft, storage reel；The center of the driving gear Retraction handles are fixedly connected with, driving gear and driven gear are the mode of engagement connection；The driven gear and storage reel Between by connection axis connection；Shrinkage front is accommodated on the storage reel, the free-end of shrinkage front connects hook.

2. laparoscopic surgery trailer system according to claim 1, which is characterized in that the rotating mechanism includes first Rotor and the second rotor；First rotor is fixed in vertical bar, and second rotor is fixed on crossbeam；Institute It is hinged for stating the connection between the first rotor and the second rotor.

3. laparoscopic surgery trailer system according to claim 1, which is characterized in that the transition card slot is in circular arc Shape.

4. laparoscopic surgery trailer system according to claim 1, which is characterized in that the tractor includes traction Line, draw bar；The draw bar includes tractive unit, the first pulling part, the second pulling part, puncture portion；The tractive unit portion Between the first pulling part and the second pulling part；The distal end of first pulling part connects puncture portion, wears in the puncture portion Equipped with draught line；The draught line is the structure type of single cord.

5. laparoscopic surgery trailer system according to claim 4, which is characterized in that first pulling part and second Pulling part is all made of hard material and is fabricated；The tractive unit is fabricated using flexible material；The length of the tractive unit Degree is 5-8cm；First pulling part, the second pulling part, tractive unit are Integratively formed, and cross section is circle, directly Diameter dimensions is 0.2-0.3cm.

6. laparoscopic surgery trailer system according to claim 1, which is characterized in that the trailer system also sets up one A sterility protection set, the sterility protection set are wrapped on crossbeam and vertical bar.

7. laparoscopic surgery trailer system according to claim 1, which is characterized in that the towing bracket further includes cross To mobile adjusting rod；The connection of one end of the transverse shifting adjusting rod and rotating mechanism；

The transverse shifting adjusting rod is equipped with embeded slot, and is socketed with fixation spring tab on the outer peripheral surface of transverse shifting adjusting rod.