CN205493900U - Exempt from pneumoperitoneum retractor - Google Patents

Abstract

The utility model provides an exempt from pneumoperitoneum retractor, mainly used pull open the operation incision in opening the abdomen operation, include: base, bracing piece and drag hook, the base can be dismantled with the operation table and be connected, the first end of bracing piece pass through rotary mechanism with the base is connected, and can be relative rotatory and the lift of base, the drag hook pass through drive mechanism with the 2nd end connection of bracing piece, and can be relative bracing piece horizontal migration. The utility model discloses installation, easy operation can adjust the angle and the height of drag hook according to the demand at will, carry drawing effectually, have reduced medical personnel's cost simultaneously.

Description

A gas-free retractor

technical field

The utility model relates to a medical auxiliary device, in particular to a pneumoperitoneum-free retractor for minimally invasive laparoscopic surgery in the human body.

Background technique

In the process of laparoscopic surgery in the human body, once a lesion is found in the human body, surgical treatment is required. In the process of surgical treatment, the existing technology needs to perform pneumoperitoneum on the human abdominal cavity so that there is a certain space in the human abdominal cavity for laparoscopic surgery. treat. However, some patients cannot be treated with pneumoperitoneum, especially those with high blood pressure and heart disease, who can only be treated by laparotomy. During the laparotomy, whether the surgical field can be exposed well depends on the quality of the operation and the quality of the operation. One of the important factors for success. At present, in the operation, once the patient's surgical site is incised, the incision is opened by manual use of retractors. Usually, several assistant doctors are assigned to perform the operation of opening the incision to ensure that the surgeon is safe. surgical operation. However, the operation lasts for several hours. On the one hand, this method increases the labor force of the doctors who are responsible for pulling the mouth, and it is easy to cause uneven tension due to fatigue, which affects the operation; on the other hand, it increases the congestion in the operating room and affects surgical environment.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the above-mentioned deficiencies in the prior art, and provide a pneumoperitoneum-free retractor for laparoscopic surgery, which has a reasonable structure and can pull the incision apart without an assistant doctor And the size and direction of the opening can be adjusted at any time to ensure a wide operating field for the chief surgeon.

The technical scheme of the utility model is:

A pneumoperitoneum-free retractor is provided, which is mainly used in laparotomy to open the surgical incision, and is characterized in that it includes: a base, a support rod and a retractor;

The base is detachably connected to the operating bed;

The first end of the support rod is connected to the base through a rotating mechanism, and can rotate and lift relative to the base;

The drag hook is connected to the second end of the support rod through a transmission mechanism, and can move horizontally relative to the support rod.

Further, the rotating mechanism includes: a first connecting rod, a second connecting rod, and a cardan shaft joint;

Both the first connecting rod and the second connecting rod are columnar structures, and their cross-sections are polygonal structures;

The first end of the first connecting rod is fixed on the base and is perpendicular to the base;

The cardan shaft joint is fixed to the second end of the first link and the first end of the second link and is capable of allowing the second link to rotate relative to the first link and lifting;

The first end of the support rod is connected to the second end of the second connecting rod.

Further, the transmission mechanism includes: a rack box, an adjustable pitch gear, a rack and a crank;

The rack box is connected to the second end of the support rod;

The rack is arranged horizontally, one end of which passes through the rack box and is connected with the drag hook;

The distance adjusting gear is arranged in the rack box and meshes with the teeth on the rack;

The crank is arranged outside the rack box and connected with the distance adjusting gear;

The rack drives the drag hook to move horizontally by rotating the handle.

Further, the cardan shaft joint includes: a knob, a first connecting piece and a second connecting piece, and the second connecting piece is rotatable relative to the first connecting piece;

The knob is provided with a stud, and one end of the stud is horizontally connected to the knob;

The first connector has two side walls, and a first through hole and a second through hole are respectively provided in the radial direction of the two side walls, and the first through hole and the second through hole are arranged coaxially, and be able to slide on said stud;

A third through hole capable of passing through the first connecting rod is vertically provided between the first through hole and the second through hole;

The second connecting piece includes: an inner sleeve and an outer sleeve, the outer sleeve covers the inner sleeve;

The other end of the stud is threadedly connected to the inner sleeve through the first through hole and the second through hole, and the outer sleeve can be driven by the screw thread rotation of the inner sleeve and the stud. the barrel slides on said stud;

The inner sleeve and the outer sleeve are provided with a fourth through hole that can pass through the second connecting rod, and the fourth through hole runs through the inner sleeve and the outer sleeve and simultaneously axis settings.

Further, the drag hook has a hook-shaped structure, and one end of the drag hook is a pointed part, which is in contact with human tissue; the other end of the drag hook is a mounting part, which is fixed to the rack.

In summary, the utility model has the beneficial effects of:

1. Reduce the cost of medical staff, broaden the surgical field, and improve surgical efficiency;

2. The installation and operation are simple, and the angle and height of the hook can be adjusted at will according to the needs, and the lifting effect is good.

Description of drawings

Fig. 1 is the structural representation of the free pneumoperitoneum retractor provided by the utility model;

Fig. 2 is the reference diagram of the use state of the pneumoperitoneum-free retractor provided by the utility model;

Fig. 3 is the schematic structural view of the rotating mechanism in the pneumoperitoneum-free retractor provided by the utility model;

Fig. 4 is a schematic cross-sectional view of the transmission mechanism in the pneumoperitoneum-free retractor provided by the present invention.

detailed description

Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the utility model can have various changes in different embodiments, all of which do not depart from the scope of the utility model, and the description and illustrations therein are used as illustrations in nature, not for To limit the utility model.

Below in conjunction with accompanying drawing, describe the specific embodiment of the utility model in detail, as shown in Figure 1, provide a kind of retractor without pneumoperitoneum, this retractor without pneumoperitoneum is made of stainless steel material, and its surface is matte color, It is mainly used in laparotomy to open the surgical incision. With this design, it will not produce reflections during the operation and affect the vision of the surgeon. Including: a base 1, a support rod 2 and a pull hook 3; the bottom of the base 1 has a groove, and holes are arranged on the opposite side walls of the groove, as shown in Figure 2, the groove at the bottom of the base 1 is arranged on the operating bed 6, so that The through holes on the base are aligned with the through holes on the bed frame of the operating bed, and then the base 1 and the operating bed 6 are fixed by fastening screws;

As shown in Figure 1, the support rod 2 is a columnar structure, and the first end of the support rod 2 is connected to the base 1 through the rotating mechanism 4, and can rotate and lift relative to the base 1, which is convenient for the doctor to lift the edge of the knife;

Specifically, the rotating mechanism 4 includes: a first connecting rod 41, a second connecting rod 42, and a cardan shaft joint 43;

Both the first connecting rod 41 and the second connecting rod 42 are columnar structures, and their cross-sections are polygonal structures;

The first end of the first connecting rod 41 is fixed on the base 1 and is perpendicular to the base 1;

The cardan shaft joint 43 is fixed on the second end of the first connecting rod 41 and the first end of the second connecting rod 42, and can make the second connecting rod 42 rotate and lift relative to the first connecting rod 41;

The first end of the support rod 2 is connected to the second end of the second connecting rod 42 .

As shown in FIG. 3 , the cardan shaft joint 43 includes: a knob 100 , a first connecting piece 200 and a second connecting piece 300 , and the second connecting piece 300 can rotate relative to the first connecting piece 200 ;

The knob 100 is provided with a stud 101, and one end of the stud 101 is horizontally connected to the knob 100;

The first connecting member 200 has two side walls, and a first through hole 201 and a second through hole 202 are respectively provided in the radial direction of the two side walls, and the first through hole 201 and the second through hole 202 are coaxially arranged, and Can slide on the stud 101;

Between the first through hole 201 and the second through hole 202, a third through hole 203 that can pass through the first connecting rod 41 is vertically arranged;

The second connecting piece 300 includes: an inner sleeve 301 and an outer sleeve 302, and the outer sleeve 302 covers the inner sleeve 301;

The other end of the stud 101 is screwed to the inner sleeve 301 through the first through hole 201 and the second through hole 202, and the outer sleeve 302 can be driven to slide on the stud 101 through the screw rotation of the inner sleeve 301 and the stud 101 ;

The inner sleeve 301 and the outer sleeve 302 are provided with a fourth through hole 303 that can pass through the second connecting rod 42 , and the fourth through hole 303 runs through the inner sleeve 301 and the outer sleeve 302 and is arranged coaxially.

In the present utility model, the cross-section of the first connecting rod 41 and the second connecting rod 42 is designed as a polygonal structure, so that the fixing effect is better, and the contact with other parts is prevented from being loose, thereby affecting the surgical operation;

The concrete usage method of this rotating mechanism 4 is as follows:

Firstly, pass one end of the first connecting rod 41 through the third through hole 203, and vertically connect with the base 1;

Then, the stud 101 on the knob 100 passes through the first through hole 201 and the second through hole 202 in sequence, and is threadedly connected with the inner sleeve 301;

Then, the second end of the second connecting rod 42 is connected and fixed with the first end of the support rod 2; the first end of the second connecting rod 42 passes through the fourth through hole 303;

Rotate the second connecting rod 42 to a proper position according to the position of the surgical port, and then rotate the knob 100 to make the threaded rotation of the stud 101 and the inner sleeve 301, and at the same time drive the outer sleeve 302 to approach the first connecting piece 200, so that the The second connecting rod 42 is locked and fixed;

When the outer sleeve 302 approaches the first connecting member 200 , the first through hole 201 and the second through hole 202 approach each other, thereby locking and fixing the first connecting rod 41 .

When the angle or height of the drag hook 3 needs to be adjusted, the knob 100 is reversely rotated to loosen between the first connecting piece 200 and the second connecting piece 300 and the stud 101 , thereby adjusting the angle or height.

As shown in Figure 1, the drag hook 3 has a hook-shaped structure, and one end of the drag hook 3 is a pointed part, which is in contact with human tissue; the other end of the drag hook 3 is a mounting part, which is connected to the second end of the support rod 2 through a transmission mechanism 5 , and can move horizontally relative to the support rod 2.

Specifically, as shown in FIG. 4 , the transmission mechanism 5 includes: a rack box 51, a pitch adjustment gear 52, a rack 53 and a rocker 54;

The rack box 51 is fixedly connected to the second end of the support rod 2;

The rack 53 is arranged horizontally, and one end thereof passes through the rack box 51 and is fixedly connected to the installation part of the drag hook 3;

The distance adjusting gear 52 is located in the rack box 51 and meshes with the teeth on the rack 53;

The rocking hand 54 is located outside the rack box 51 and is connected with the pitch adjustment gear 52;

The rack 53 drives the drag hook 3 to move horizontally by rotating the handle 54 .

In summary, the utility model has the beneficial effects of:

1. Reduce the cost of medical staff, broaden the surgical field, and improve surgical efficiency;

2. The installation and operation are simple, and the angle and height of the hook can be adjusted at will according to the needs, and the lifting effect is good;

3. The fixing effect between the parts is good, which reduces the looseness caused by the rotation between the parts.

In the utility model, two pneumoperitoneum-free retractors are also used, and the two are respectively fixed on opposite sides of the operating bed. The effect of using the two pneumoperitoneum-free retractors together is better, so that the surgical field of view is wider.

Since the invention can be embodied in various forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly defined within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (4)

1. A pneumoperitoneum-free retractor, mainly used in laparotomy to open the surgical incision, is characterized in that it comprises: a base, a support rod and a drag hook; The base is detachably connected to the operating bed; The support rod is a columnar structure, the first end of the support rod is connected to the base through a rotating mechanism, and can rotate and lift relative to the base; The drag hook is connected to the second end of the support rod through a transmission mechanism, and can move horizontally relative to the support rod; The rotating mechanism includes: a first connecting rod, a second connecting rod, and a cardan shaft joint; Both the first connecting rod and the second connecting rod are columnar structures, and their cross-sections are polygonal structures; The first end of the first connecting rod is fixed on the base and is perpendicular to the base; The cardan shaft joint is fixed to the second end of the first link and the first end of the second link and is capable of allowing the second link to rotate relative to the first link and lifting; The first end of the support rod is connected to the second end of the second connecting rod. 2. The pneumoperitoneum-free retractor according to claim 1, wherein the transmission mechanism comprises: a rack box, a distance-adjusting gear, a rack and a crank; The rack box is connected to the second end of the support rod; The rack is arranged horizontally, one end of which passes through the rack box and is connected with the drag hook; The distance adjusting gear is arranged in the rack box and meshes with the teeth on the rack; The crank is arranged outside the rack box and connected with the distance adjusting gear; The rack drives the drag hook to move horizontally by rotating the handle. 3. The pneumoperitoneum-free retractor according to claim 1, wherein the cardan shaft joint comprises: a knob, a first connecting piece and a second connecting piece, and the second connecting piece is opposite to the first connecting piece. a connecting piece can be rotated; The knob is provided with a stud, and one end of the stud is horizontally connected to the knob; The first connector has two side walls, and a first through hole and a second through hole are respectively provided in the radial direction of the two side walls, and the first through hole and the second through hole are arranged coaxially, and be able to slide on said stud; A third through hole capable of passing through the first connecting rod is vertically provided between the first through hole and the second through hole; The second connecting piece includes: an inner sleeve and an outer sleeve, the outer sleeve covers the inner sleeve; The other end of the stud is threadedly connected to the inner sleeve through the first through hole and the second through hole, and the outer sleeve can be driven by the screw thread rotation of the inner sleeve and the stud. the barrel slides on said stud; The inner sleeve and the outer sleeve are provided with a fourth through hole that can pass through the second connecting rod, and the fourth through hole runs through the inner sleeve and the outer sleeve and simultaneously axis settings. 4. The pneumoperitoneum retractor as claimed in claim 2, wherein the retractor is a hook-shaped structure, and one end of the retractor is a tip, which is in contact with human tissue; the other end of the retractor is The mounting part is fixed with the rack.