CN217138139U

CN217138139U - Pneumoperitoneum-free retractor for assisting laparoscopic surgery

Info

Publication number: CN217138139U
Application number: CN202220042606.1U
Authority: CN
Inventors: 薛英威; 韩士良
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-08-09
Anticipated expiration: 2032-01-06

Abstract

The utility model provides a pneumoperitoneum-free retractor for assisting laparoscopic surgery, which relates to the technical field of medical instruments and mainly aims at solving the problem of traditional CO ₂ The pneumoperitoneum postoperative can cause certain side effect's problem, provides the equipment that can convenient exposure abdominal cavity operation field of vision. The pneumoperitoneum-free retractor for assisting laparoscopic surgery comprises a supporting upright post, a supporting cross beam, an elevating mechanism and a traction unit, wherein the supporting upright post is hinged to the supporting cross beam, the elevating mechanism is located on the supporting cross beam, the lower end of the elevating mechanism is detachably connected with the traction unit used for exposing a surgery position, and the elevating mechanism is liftedThe mechanism can pull the traction unit to move up and down along the vertical line direction; the traction unit comprises a hanging rack, a buckle and traction pieces, the hanging rack is of an annular structure with openings, and the traction pieces are fixedly arranged on the hanging rack through the buckle. The utility model discloses an abdomen tractive equipment has solved the side effect that traditional laparoscopic surgery leads to because of the abdominal cavity is aerifyd.

Description

Pneumoperitoneum-free retractor for assisting laparoscopic surgery

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a pneumoperitoneum-free retractor for assisting laparoscopic surgery.

Background

Laparoscopic minimally invasive surgery is now increasingly used in clinical surgery, CO ₂ The establishment of pneumoperitoneum is still a prerequisite for the current development of this technology. CO 2 ₂ It is also well known in the art that many of the disadvantages of the pneumoperitoneum are caused by the establishment of the pneumoperitoneum. Therefore, how to bypass CO ₂ The establishment of pneumoperitoneum to complete the minimally invasive hand of the laparoscope is always a difficult problem to be continuously explored in the industry. Although some devices exist in the market, the devices are all self-made scattered, and the devices have shortcomings and defects in the using process and still do not achieve the expected effect at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary laparoscopic surgery exempts from pneumoperitoneum retractor can replace the pneumoperitoneum technique that current laparoscopic surgery relied on, and convenient props up an operation space at human belly. Since carbon dioxide is not required to be introduced into the abdomen, the problem of side effects caused by the pneumoperitoneum of carbon dioxide is not required to be considered. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pneumoperitoneum-free retractor for assisting laparoscopic surgery, which comprises a supporting upright post, a supporting beam, a lifting mechanism and a traction unit, wherein the supporting upright post is hinged with the supporting beam, the lifting mechanism is positioned on the supporting beam, the lower end of the lifting mechanism is detachably connected with the traction unit for exposing a surgical position, and the lifting mechanism can pull the traction unit to move up and down along the direction of a vertical line; the traction unit comprises a hanging rack, a buckle and a traction piece, the hanging rack is of an annular structure with an opening, the traction piece is fixedly connected with the buckle, a connecting hole penetrates through the buckle, and the buckle is connected with the hanging rack through the connecting hole.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

As a further improvement of the utility model, the cross-section of the hanging rack is of a rectangular structure, and the hanging rack is matched with the shape of the connecting hole.

As a further improvement of the present invention, the buckle further comprises an upper pressing plate and a lower pressing plate hinged to each other, a lock groove is provided at a free end of the upper pressing plate, a lock rod is rotatably provided at a corresponding position of the lower pressing plate, and when the upper pressing plate is fastened on the lower pressing plate, the lock rod can be locked with the lock groove to fix the upper pressing plate on the lower pressing plate; at the moment, a through groove matched with the traction piece can be formed between the upper pressure plate and the lower pressure plate, and the buckle is connected with the traction piece through the through groove; the connecting holes are perpendicular to the through grooves.

As a further improvement, the holding down plate is kept away from the outside protruding fixed block that extends in one side of top board, the connecting hole runs through the fixed block setting.

As a further improvement of the utility model, the cross section of the hanging rack is of a rectangular structure.

As a further improvement of the present invention, the traction member includes a fixed member and a functional member which are fixedly connected; the fixing component can be connected with the buckle through the through groove, and the functional component comprises one of an aspirator, a main drag hook, an auxiliary drag hook and a free baffle.

As a further improvement of the present invention, the fixing member includes a horizontal handle capable of being inserted into the through groove, the end of the horizontal handle is bent outwards and extended to form a connecting rod, and is located below the fixing member the functional member is passed through the connecting rod and the fixing member is connected.

As a further improvement of the utility model, the size of the main drag hook is larger than that of the auxiliary drag hook, and an acute angle is formed between the axis of the auxiliary drag hook and the plane of the fixed component, and the acute angle is 45-60 degrees; the free baffle is a curved surface structure which is concave towards the outer side of the hanging rack.

As a further improvement of the utility model, at least two hanging rings connected with the lifting mechanism can be formed on the corresponding fixed component connected with the main drag hook; and/or at least two hanging rings connected with the lifting mechanism can be formed on the hanging rack.

As a further improvement, the fixed adapter sleeve that is provided with in support post's upper end, the fixed dog that is provided with in the adapter sleeve, supporting beam with support post is through being located the pin joint of dog top is articulated each other, works as supporting beam with during the upper surface contact of dog, this moment supporting beam is in the horizontality.

As a further improvement of the present invention, the lifting mechanism includes a lifting device and a suspension arm, the lifting device is slidably and rotatably engaged with the supporting beam, the lifting device includes a housing, a rocker and a gear, the gear is located in the housing, the rocker passes through the housing and is connected with the gear, one side of the suspension arm is provided with a rack, the suspension arm penetrates through the housing from top to bottom, and the rack is engaged with the gear;

the lower end of the suspension arm is fixedly provided with a hook point used for being connected with the traction unit.

As a further improvement of the utility model, the lower end of the supporting upright post is connected with a fixing clamp; the lower side of the fixing clamp is provided with a sliding chute which is matched with a ram on the side edge of the operating table; the side of fixation clamp is fixed with the stand connecting piece on, set up the through hole that link up from top to bottom on the stand connecting piece, the through hole with the support post cooperatees, be fixed with the locking handle on the lateral wall of stand connecting piece, the screw of locking handle can pass the lateral wall of stand connecting piece and with wear to establish support post looks butt in the through hole, in order to fix the support post.

Compared with the prior art, the utility model discloses main drag hook in the pneumoperitoneum-free retractor of supplementary laparoscopic surgery that the preferred embodiment provided can get into patient's abdominal cavity and tentatively promote abdominal wall through the operation incision, after adjusting supplementary drag hook to suitable position and angle afterwards, can further pull open the abdominal cavity through supplementary drag hook, make the operation region of patient better expose through the height of adjustment traction unit, make things convenient for the doctor to carry out the operation under the peritoneoscope; the aspirator can be used for sucking gas and liquid generated in the operation process so as to ensure that the operation visual field is clear. The traction assembly can move up and down under the action of the lifting mechanism, so that the corresponding drag hook part is controlled to drive the abdominal wall to move up and down, a proper abdominal cavity space is created, and smooth operation of an abdominal cavity minimally invasive surgery is guaranteed. The pneumoperitoneum technique that has relatively (fill carbon dioxide to patient's belly to form the operation space), the utility model discloses need not to fill carbon dioxide to patient's belly when using, therefore the operation finishes the back and also need not to consider the side effect problem that carbon dioxide pneumoperitoneum caused. In addition, the traction unit retracts the abdominal wall incision, thereby facilitating the implementation of the reconstruction of the digestive tract. Is beneficial to the later recovery of the patient on the whole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a traction unit in an pneumoperitoneum-free retractor for assisting laparoscopic surgery according to the present invention;

FIG. 2 is a schematic view of the buckle of the pneumoperitoneum-free retractor for assisting laparoscopic surgery of the present invention;

FIG. 3 is a schematic view of the clip of FIG. 1 secured to a securing member;

FIGS. 4A-4D are schematic views of the retractor of the invention in an pneumoperitoneum-free retractor for assisting laparoscopic surgery;

FIG. 5 is a schematic view of the connection of the support post, the support beam and the lifting mechanism of the pneumoperitoneum-free retractor for assisting laparoscopic surgery of the present invention;

FIG. 6 is a cross-sectional view of the stud connector portion of FIG. 5;

fig. 7 is a schematic view of the suspension arm of fig. 5 engaged with a gear;

fig. 8 is an enlarged view of a portion a in fig. 5.

In the figure: 1. supporting the upright post; 11. a fixing clip; 12. a column connector; 13. locking the handle; 14. connecting sleeves; 2. a support beam; 3. a lifting mechanism; 31. a housing; 32. a rocker; 33. a suspension arm; 34. hooking points; 35. a gear; 4. a hanger; 41. opening the gap; 5. buckling; 51. connecting holes; 52. a lower pressing plate; 521. a lock lever; 522. a fixed block; 53. an upper pressure plate; 531. locking the groove; 54. a through groove; 6. a traction member; 61. a fixing member; 611. a transverse handle; 612. a connecting rod; 613. hanging a ring; 62. a functional member; 621. a suction apparatus; 622. a main drag hook; 623. auxiliary drag hooks; 624. a free baffle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The technical solution of the present invention will be specifically described below with reference to the accompanying drawings.

Referring to fig. 1-8, the present invention provides a pneumoperitoneum-free retractor for assisting laparoscopic surgery, which comprises a height control unit and a traction unit, wherein the traction unit is detachably fixed on the height control unit, and the height control unit can drive the traction unit to move up and down.

In practical use, a small incision is firstly made on the abdomen of a patient, wherein the traction unit is used for expanding the incision, and then the height control unit is started, and the traction unit can drive the incision to move upwards under the action of the height control unit, so that an operation space is formed on the abdomen of the patient.

The traction unit and the height control unit are described separately below:

with regard to the pulling unit:

referring to fig. 1, the traction unit includes a hanger 4, a buckle 5 and traction members 6, wherein the hanger 4 is an annular structure with a notch 41, a connection hole 51 is formed through the buckle, and the traction members 6 are fixedly connected with the buckle 5. The buckle 5 is provided with a connecting hole 51, and the buckle 5 is connected with the hanging rack 4 through the connecting hole 51.

To facilitate the snap-fit mounting on the hanger 4, the cross-sectional shape of the hanger 4 matches the shape of the attachment hole 51. Specifically, the cross-sectional shape of the hanger 4 is a rectangular structure or a rounded rectangular structure.

The buckle 5 comprises an upper pressing plate 53 and a lower pressing plate 52 which are hinged with each other, a locking groove 531 is arranged at the free end of the upper pressing plate 53, a locking rod 521 is rotatably arranged at the corresponding position of the lower pressing plate 52, and the structure of the buckle 5 is shown in fig. 2. When the upper pressing plate 53 is buckled on the lower pressing plate 52, the lock lever 521 can be locked with the lock groove 531 so as to fix the upper pressing plate 53 on the lower pressing plate 52; a through groove 54 matched with the traction piece 6 can be formed between the upper pressing plate 53 and the lower pressing plate 52, and the buckle 5 is connected with the traction piece 6 through the through groove 54. It should be noted that the connection hole 51 and the through groove 54 are arranged perpendicular to each other.

Specifically, one side of the lower pressing plate 52, which is away from the upper pressing plate 53, protrudes outward to form a fixing block 522, and the connecting hole 51 is disposed through the fixing block 522.

The traction piece 6 comprises a fixed component 61 and a functional component 62 which are fixedly connected, the fixed component 61 can be connected with the buckle 5 through the through groove 54, and the functional component 62 comprises one of an aspirator 621, a main drag hook 622, an auxiliary drag hook 623 and a free baffle 624. In use, there is one and only one functional member 62 on each traction element 6: as shown in fig. 1, five pulling elements 6 each having the functional component 62 are provided on the hanger 4, wherein the number of the pulling elements 6 having the auxiliary hooks 623 is two, and the rest are one.

The structure of the pulling member 6 will be explained below. Wherein the fixing member 61 includes a horizontal handle 611 capable of passing through the through slot 54, as shown in fig. 3. The end of the horizontal handle 611 is bent outward and extended to form a connecting rod 612, and the functional component 62 located below the fixing component 61 is connected to the fixing component 61 through the connecting rod 612.

Generally, the fixing member 61 includes a transverse handle 611 and two connecting rod 612 structures extending in different directions. Wherein, at least two hanging rings 613 connected with the lifting mechanism can be formed on the fixing member 61 connected with the main drag hook 622. Alternatively, the suspension loop 613 may be provided on the hanger 4.

As shown in FIG. 4A, the traction device 6 comprises a fixing member 61 and an aspirator 621, wherein the fixing member 61 is L-shaped, and the tubular structure of the aspirator 621 is connected with the transverse handle 611 of the fixing member 61.

As shown in fig. 4B, the pulling member 6 includes a fixing member 61 and a main pulling hook 622, in which the fixing member 61 is a zigzag-shaped bent structure, and the connecting rod 612 is perpendicular to the transverse handle 611, wherein the length of the transverse handle 611 is 6cm, and the length of the connecting rod 612 is 8 cm; the free ends of the two connecting rods 612 of the fixing member 61 are respectively provided with a hanging ring 613 and a main drag hook 622, the included angle between the main drag hook 622 and the connecting rods 612 is 85-90 degrees, and the free end of the main drag hook 622 points to the outer side of the hanging rack 4. The length of the main drag hook 622 is 10cm, and the width is 7 cm; alternatively, the main hook 622 has a length of 15cm and a width of 7 cm. Two main hooks 622 of different sizes may also be provided, and may be selected as desired during use. It should be noted that the free end of the primary retractor 622 points away from the curved configuration of the securing member 61.

As shown in fig. 4C, the pulling member 6 includes a fixing member 61 and an auxiliary pulling hook 623, in which the fixing member 61 is a zigzag-like bent structure, and the connecting rod 612 is perpendicular to the transverse handle 611, wherein the length of the transverse handle 611 is 6cm, and the length of the connecting rod 612 is 8 cm; the auxiliary hook 623 is arranged perpendicular to the connecting rod 612 and points to the outer side of the hanging rack 4. The length of the auxiliary drag hook 623 is 8cm, and the width is 6 cm; it should be noted that the central axis of the auxiliary hook 623 and the corresponding plane of the fixing member 61 form an acute angle. In this figure, the acute angle is 45-60 °.

The size of the main hook 622 is larger than that of the auxiliary hook 623.

As shown in fig. 4D, the pulling element 6 includes a fixing member 61 and a free stop 624 having a curved structure, in which the fixing member 61 has a zigzag-like bending structure, and the connecting rod 612 is perpendicular to the transverse handle 611, wherein the length of the transverse handle 611 is 6cm, and the length of the connecting rod 612 is 8 cm; the free flap 624 is connected to the connecting rod 612 and the middle portion of the free flap 624 can be recessed in a direction toward the outside of the hanger 4.

The traction unit is used as follows:

after the abdominal incision of the patient is completed, the main retractor 622 enters the abdominal cavity through the incision, and the corresponding fixing member 61 is held by hand to slightly lift the abdominal wall; after the direction and the angle are adjusted, the traction piece 6 is fixed on the circular hanging rack 4 through the buckle 5. Subsequently, the two auxiliary hooks 623 are respectively inserted into the abdominal cavity through the incision, the two sides of the incision are pulled apart, the direction and the angle are adjusted, the incision is properly retracted, and the corresponding traction member 6 is fixed on the hanger 4 again. Finally, the traction unit is suspended from the height control unit by means of a suspension loop 613. The height control unit can control the traction unit to move up and down, so that the abdominal wall is driven to move up and down, and an abdominal space is created, so that the laparoscopic minimally invasive surgery can be smoothly performed.

It should be noted that the above-mentioned hanging frame 4 can also be provided with a ring structure which can be connected with the height control unit and is used for pulling the whole traction unit to move up and down.

Regarding the height control unit:

referring to fig. 5, the height control unit includes a support column 1, a support beam 2 and a lifting mechanism 3, the support column 1 is vertically disposed, the support beam 2 is horizontally disposed, the top end of the support column 1 is connected with one end of the support beam 2, and the lifting mechanism 3 is installed on the support beam 2.

The lower extreme of support post 1 is connected with fixation clamp 11, and the spout has been seted up to the downside of fixation clamp 11, and the spout cooperatees with the ram on the operation table side. The support upright 1 can slide freely on the ram by means of the retaining clip 11, thus achieving an adjustment of the position of the entire height control unit.

The side of the fixing clamp 11 is fixed with a column connecting piece 12, the column connecting piece 12 is provided with a connecting hole which is communicated up and down, and the connecting hole is matched with the supporting column 1. The support column 1 is matched with the connecting hole, and the connecting hole penetrates through the upper part and the lower part of the connecting piece, namely, the support column 1 can penetrate through the column connecting piece 12, so that the support column 1 can freely slide up and down on the column connecting piece 12, and the height of the support column 1 (the height of the support beam 2) can be adjusted.

A locking handle 13 is fixed on the side wall of the column connecting piece 12, and a screw of the locking handle 13 penetrates through the side wall of the column connecting piece 12 and abuts against the support column 1 in the connecting hole, so that the support column 1 is fixed in the column connecting piece 12, as shown in fig. 6.

Specifically, after the supporting upright 1 is adjusted to a proper height, the locking handle 13 is manually screwed, so that the position of the supporting upright 1 is fixed.

The upper end of the supporting upright post 1 is fixed with a connecting sleeve 14, the lower end of the connecting sleeve 14 is sleeved at the upper end of the supporting upright post 1, the supporting beam 2 is hinged on the connecting sleeve 14, a stop block is fixed on the connecting sleeve 14, the joint of the supporting beam 2 and the connecting sleeve 14 is a hinged point, the hinged point and the stop block are arranged at intervals in the horizontal direction, and when the supporting beam 2 is in contact with the upper plane of the stop block, the supporting beam 2 is in a horizontal state.

Because the supporting beam 2 is hinged on the connecting sleeve 14, and the connecting sleeve 14 is sleeved on the top end of the supporting upright post 1, that is, the supporting beam 2 can rotate relative to the supporting upright post 1, and the supporting beam 2 can be contacted with the stop block when the supporting beam 2 rotates to the horizontal state in consideration of the setting of the stop block, and the supporting beam 2 depends on the hinge point and the support of the stop block to realize the purpose of suspending the lifting mechanism 3 and the traction unit.

And supporting beam 2 can rotate 1 relative to the support post, and supporting beam 2 can rotate to vertical state, and supporting beam 2 and support post 1 are vertical to be set up side by side this moment, can effectively accomodate whole height control unit, do benefit to disinfection and custody.

The lifting mechanism 3 comprises a lifting device and a suspension arm 33, the lifting device is in sliding and rotating fit with the supporting beam 2, the lifting device comprises a shell 31, a rocker 32 and a gear 35, the gear 35 is located in the shell 31, the rocker 32 penetrates through the shell 31 and is connected with the gear 35, a rack is arranged on one side of the suspension arm 33, the suspension arm 33 penetrates through the shell 31 up and down, and the rack is meshed with the gear 35, as shown in fig. 7.

The operation process of the lifting mechanism 3 is to rock the rocker 32, the rocker 32 drives the gear 35 to rotate, the gear 35 is matched with the rack to drive the rack to move up and down, and the rack is arranged on one side of the suspension arm 33, so that the suspension arm 33 can be driven to move up and down, and the up and down position of the traction unit can be controlled.

In addition, a hook point 34 is fixed at the lower end of the suspension arm 33, as shown in fig. 8, the hook point 34 can be matched with a hanging ring in the traction unit, thereby realizing a detachable matching mode of the traction unit and the height control unit.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The pneumoperitoneum-free retractor for assisting laparoscopic surgery is characterized by comprising a supporting upright post (1), a supporting cross beam (2), a lifting mechanism (3) and a traction unit, wherein the supporting upright post (1) is hinged to the supporting cross beam (2), the lifting mechanism (3) is positioned on the supporting cross beam (2), the lower end of the lifting mechanism (3) is detachably connected with the traction unit for exposing a surgery position, and the lifting mechanism (3) can pull the traction unit to move up and down along the direction of a vertical line;

the traction unit comprises a hanging rack (4), a buckle (5) and a traction piece (6), the hanging rack (4) is of an annular structure with a notch (41), the traction piece (6) is fixedly connected with the buckle (5), a connecting hole (51) penetrates through the buckle (5), and the buckle (5) is connected with the hanging rack (4) through the connecting hole (51).

2. The pneumoperitoneum-free retractor for assisting laparoscopic surgery according to claim 1, wherein the cross-section of the hanger (4) is a rectangular structure, and the hanger (4) is adapted to the shape of the connecting hole (51).

3. The pneumoperitoneum-free retractor for assisting laparoscopic surgery according to claim 2, wherein the buckle (5) further comprises a lower pressing plate (52) and an upper pressing plate (53) which are hinged to each other, a locking groove (531) is provided at a free end of the upper pressing plate (53), a locking rod (521) is rotatably provided at a corresponding position of the lower pressing plate (52), and when the upper pressing plate (53) is buckled on the lower pressing plate (52), the locking rod (521) can be locked with the locking groove (531) so as to fix the upper pressing plate (53) on the lower pressing plate (52); at the moment, a through groove (54) matched with the traction piece (6) can be formed between the upper pressing plate (53) and the lower pressing plate (52), and the buckle (5) is connected with the traction piece (6) through the through groove (54);

the connecting hole (51) and the through groove (54) are perpendicular to each other.

4. The pneumoperitoneum-free retractor for assisting laparoscopic surgery according to claim 3, wherein a side of the lower pressure plate (52) away from the upper pressure plate (53) is protruded outwardly to form a fixing block (522), and the coupling hole (51) is disposed through the fixing block (522).

5. Pneumoperitoneum-free retractor according to claim 4, wherein said retractor (6) comprises a fixed member (61) and a functional member (62) fixedly connected;

the fixing component (61) can be connected with the buckle (5) through the through groove (54), and the functional component (62) comprises one of an aspirator (621), a main drag hook (622), an auxiliary drag hook (623) and a free baffle (624).

6. The pneumoperitoneum-free retractor for assisting laparoscopic surgery according to claim 5, wherein the fixing member (61) comprises a transverse handle (611) capable of being inserted into the through slot (54), an end of the transverse handle (611) is bent outwards and extends to form a connecting rod (612), and the functional member (62) located below the fixing member (61) is connected with the fixing member (61) through the connecting rod (612).

7. The pneumoperitoneum-free retractor for auxiliary laparoscopic surgery as claimed in claim 6, wherein the size of said main retractor (622) is larger than that of said auxiliary retractor (623), and an acute angle is formed between the axis of said auxiliary retractor (623) and the plane of said fixing member (61), and the acute angle is 45-60 degrees; the free baffle plate (624) is a curved surface structure which is concave towards the outer side of the hanging rack (4).

8. Pneumoperitoneum-free retractor according to claim 5, wherein at least two suspension loops (613) connected to the lifting mechanism (3) can be formed on the respective fixing members (61) connected to the main retractor (622);

and/or at least two hanging rings (613) connected with the lifting mechanism (3) can be formed on the hanging rack (4).

9. The pneumoperitoneum-free retractor for assisting laparoscopic surgery according to any one of claims 1 to 8, wherein a connecting sleeve (14) is fixedly arranged at the upper end of the supporting upright post (1), a stopper is fixedly arranged in the connecting sleeve (14), the supporting beam (2) and the supporting upright post (1) are hinged to each other through a hinge point above the stopper, and when the supporting beam (2) is in contact with the upper surface of the stopper, the supporting beam (2) is in a horizontal state;

the lifting mechanism (3) comprises a lifting device and a suspension arm (33), the lifting device is in sliding and rotating fit with the supporting beam (2), the lifting device comprises a shell (31), a rocker (32) and a gear (35), the gear (35) is located in the shell (31), the rocker (32) penetrates through the shell (31) and is connected with the gear (35), a rack is arranged on one side of the suspension arm (33), the suspension arm (33) penetrates through the shell (31) up and down, and the rack is meshed with the gear (35);

the lower end of the suspension arm (33) is fixedly provided with a hook point (34) which is used for being connected with the traction unit.

10. Pneumoperitoneum-free retractor for assisting laparoscopic surgery according to claim 9, wherein a fixing clip (11) is connected to the lower end of the support post (1);

a sliding groove is formed in the lower side of the fixing clamp (11) and matched with a ram on the side edge of the operating table; be fixed with stand connecting piece (12) on the side of fixation clamp (11), set up the through hole that link up from top to bottom on stand connecting piece (12), the through hole with support post (1) cooperatees, be fixed with locking handle (13) on the lateral wall of stand connecting piece (12), the screw of locking handle (13) can pass the lateral wall of stand connecting piece (12) and with wear to establish support post (1) looks butt in the through hole is with fixed support post (1).