CN220089537U - Abdominal wall fixing retractor for hepatobiliary surgery - Google Patents

Abstract

The utility model discloses a fixed retractor for abdominal wall of liver and gall surgery, which comprises a base, two positioning bolts and a telescopic rod, wherein the two positioning bolts are respectively connected with the front end and the rear end of the upper surface of the base in a screwed manner, and the telescopic rod is arranged at the center position of the top of the base and further comprises: the stretching mechanism is rotatably arranged at the top end of the telescopic rod; the lifting mechanism is arranged at the right end of the stretching mechanism; one end of the supporting rod is arranged at the top of the lifting mechanism; the anti-shake mechanism is arranged at the other end of the supporting rod; the stretching mechanism includes: the box body is rotatably arranged at the top end of the telescopic rod, and a limiting groove is formed in the front side of the box body. When in actual use, the retractor depth of the retractor can be adjusted, the retractor is suitable for patients with different body fat, and the retractor has a medical instrument control function, prevents hands shake of doctors from being transferred to medical instruments, and has strong operation stability.

Description

Abdominal wall fixing retractor for hepatobiliary surgery

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an abdominal wall fixing retractor for liver and gall surgery.

Background

The retractor is also called a drag hook and is used for retracting tissues, exposing the surgical scope, facilitating exploration and operation, and can be divided into a hand-held drag hook and an automatic drag hook; the retractor has various specifications with different shapes and sizes, and can be selected to be suitable according to the operation requirement;

liver and gall surgery is performed on the abdomen, for patients with high body fat, the abdomen fat is heavy, the retraction depth of a retractor cannot be adjusted by the existing retractor, and the existing retractor is difficult to be suitable for patients with different body fat.

Disclosure of Invention

The utility model provides a fixed retractor for abdominal wall of liver and gall surgery, which aims to solve the problems that the existing retractor cannot be used for patients with different body fat and cannot improve the stability of surgery operation.

The utility model is realized in this way, a liver and gall operation abdominal wall fixing retractor comprises a base, two positioning bolts and a telescopic rod, wherein the two positioning bolts are respectively screwed at the front end and the rear end of the upper surface of the base, and the telescopic rod is arranged at the top center position of the base and further comprises: the stretching mechanism is rotatably arranged at the top end of the telescopic rod; the lifting mechanism is arranged at the right end of the stretching mechanism; one end of the supporting rod is arranged at the top of the lifting mechanism; the anti-shake mechanism is arranged at the other end of the supporting rod;

aim at drag hook's lateral shifting realizes patient's abdominal wall and pulls open, stretching mechanism includes: the box body is rotatably arranged at the top end of the telescopic rod, and a limiting groove is formed in the front side of the box body; the rack can be inserted into the inner cavity of the box body in a left-right sliding way; the first springs are two in number and are respectively arranged at the left side and the right side of the box body limiting groove; the brake plate can be inserted into the rear side of the limit groove of the box body in a sliding mode, teeth are arranged on the rear side of the brake plate and are clamped with the racks, and a sliding groove is formed in the middle of the brake plate; the compression bar can be inserted into the top of the box body in a vertically sliding manner; the number of the check blocks is two, the check blocks are respectively arranged at the bottom ends of the left side and the right side of the compression bar, and the check blocks are positioned in the inner cavity of the box body.

Furthermore, the front side of the inner cavity of the chute and the bottom end of the front side of the compression bar are inclined planes.

Still further, an object is to adjust the drag hook height, for the patient of different body fat uses, elevating system includes: the limiting plate is fixedly connected to the right end of the rack; the draw hook can be inserted into the inner cavity of the limiting plate in a vertically sliding way, and the left side wall of the draw hook is provided with clamping grooves from top to bottom at equal intervals; the second spring and the clamping ball are inserted into the left side of the inner cavity of the limiting plate from inside to outside, and the clamping ball enters the inner cavity of the clamping groove to position the draw hook under the action of the second spring.

Further, the maximum length of the clamping ball extending into the clamping groove is smaller than the radius of the clamping ball.

Still further, an object is to adjust the spacing subassembly angle, anti-shake mechanism includes: the support column is fixedly connected to the right end of the support rod; the universal ball is embedded in the right end of the support column in a rotatable manner; and the limiting assembly is arranged on the outer wall of the universal ball.

Still further, an object is to achieve clamping of a medical instrument and control linear movement of the medical instrument, the limiting assembly includes: the guide rail is arranged on the outer wall of the universal ball; the sliding block can be inserted into the inner cavity of the guide rail in a vertically sliding way; the clamping plate is arranged on the right side of the sliding block and is U-shaped; the clamping bolts are two in number and are respectively in threaded connection with the front side and the rear side of the clamping plate.

Further, the inner cavity of the guide rail is dovetail-shaped.

The utility model has the following beneficial effects: the brake plate can move forwards through pressing down the compression bar, the brake plate releases braking on the rack, the brake plate is driven to move backwards and be clamped with the rack under the action of the elastic force of the first spring, so that the transverse movement of the drag hook is realized, the abdomen wall is retracted, the clamping ball is pushed to be inserted into the clamping groove through the elastic force of the second spring, the height adjustment of the drag hook is realized, the abdomen wall retraction function of patients with different body fat is realized, the medical instrument is fixed through the matching of the clamping plate and the clamping bolt, the linear movement of the medical instrument is realized through the matching of the guide rail and the sliding block, the angle adjustment of the medical instrument is realized through the matching of the universal ball and the supporting column, the aim of random movement of the medical instrument is fulfilled, the retraction depth of the drag hook can be adjusted during actual use, the drag hook is suitable for patients with different body fat, the drag hook has the medical instrument control function, the hand shake of doctors is prevented from being transmitted to the medical instrument, and the operation stability is strong.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top cross-sectional view of the stretching mechanism;

FIG. 3 is a left side cross-sectional view of the stretching mechanism;

FIG. 4 is a schematic view of a lifting mechanism;

FIG. 5 is a front cross-sectional view of the lift mechanism;

FIG. 6 is a schematic diagram of an anti-shake mechanism;

fig. 7 is a front sectional view of the anti-shake mechanism.

In the figure: 1. a base; 2. positioning bolts; 3. a telescopic rod; 4. a stretching mechanism; 5. a lifting mechanism; 6. a support rod; 7. an anti-shake mechanism; 41. a case body; 42. a rack; 43. a first spring; 44. a brake plate; 45. a chute; 46. a compression bar; 47. a stop block; 51. a limiting plate; 52. a drag hook; 53. a clamping groove; 54. a second spring; 55. ball clamping; 71. a support column; 72. a universal ball; 73. a limit component; 731. a guide rail; 732. a slide block; 733. a clamping plate; 734. and clamping the bolt.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-7, the utility model relates to a fixed retractor for abdominal wall of liver and gall surgery, which comprises a base 1, two positioning bolts 2 and a telescopic rod 3, wherein the two positioning bolts 2 are respectively connected with the front end and the rear end of the upper surface of the base 1 in a threaded manner, the telescopic rod 3 is arranged at the center of the top of the base 1, a stretching mechanism 4 moves up and down through the telescopic rod 3, and the fixed retractor also comprises a stretching mechanism 4, a lifting mechanism 5, a supporting rod 6 and an anti-shake mechanism 7, wherein the stretching mechanism 4 can be rotatably arranged at the top end of the telescopic rod 3; the lifting mechanism 5 is arranged at the right end of the stretching mechanism 4; one end of a supporting rod 6 is arranged at the top of the lifting mechanism 5; the anti-shake mechanism 7 is arranged at the other end of the supporting rod 6;

the base 1 is sleeved on the edge of an operating table, the positioning bolts 2 are screwed, the base 1 is pressed on the operating table, the telescopic rod 3 is fixed, and the heights of the stretching mechanism 4, the lifting mechanism 5 and the supporting rod 6 can be changed by adjusting the telescopic rod 3;

the stretching mechanism 4 comprises a box body 41, a rack 42, a first spring 43, a brake plate 44, a chute 45, a compression bar 46 and a stop block 47, wherein the box body 41 is rotatably arranged at the top end of the telescopic rod 3, and a limit groove is formed in the front side of the box body 41; the rack 42 can be inserted into the inner cavity of the box body 41 in a left-right sliding way, and the rack 42 plays a role in supporting the limiting plate 51; the number of the first springs 43 is two, the first springs 43 are respectively arranged at the left side and the right side of the limit groove of the box body 41, and the first springs 43 push the brake plate 44 to move backwards under the action of self elasticity so that the brake plate 44 is in stable contact with the rack 42; the brake plate 44 can slide back and forth at the rear side of the limit groove of the plug-in box 41, the rear side of the brake plate 44 is provided with teeth which are clamped with the rack 42, and the middle part of the brake plate 44 is provided with a chute 45; the compression bar 46 can be inserted into the top of the box 41 in a vertically sliding manner; the number of the stop blocks 47 is two, the stop blocks 47 are respectively arranged at the bottom ends of the left side and the right side of the compression bar 46, the stop blocks 47 are positioned in the inner cavity of the box body 41, and the stop blocks 47 limit the compression bar 46 to prevent the compression bar 46 from being separated from the box body 41;

pressing down the pressing rod 46, pushing the inclined surface of the pressing rod 46 and the inclined surface of the sliding groove 45 to extrude the first spring 43, pushing the braking plate 44 to move forwards, until the braking plate 44 releases braking on the rack 42, pulling the draw hook 52 to move through the rack 42, enabling the draw hook 52 to retract the abdominal wall, loosening the pressing rod 46, pushing the rear braking plate 44 to move backwards under the action of self elasticity of the first spring 43, clamping the braking plate 44 with the rack 42, braking the rack 42, and retracting the draw hook 52 to the abdominal wall.

Specifically, the front side of the inner cavity of the chute 45 and the bottom end of the front side of the compression bar 46 are both inclined surfaces, and when the compression bar 46 moves downward, the compression bar 46 and the inclined surfaces of the chute 45 are mutually pressed, so that the brake plate 44 can move forward.

Specifically, the lifting mechanism 5 includes a limiting plate 51, a drag hook 52, a clamping groove 53, a second spring 54 and a clamping ball 55, wherein the limiting plate 51 is fixedly connected to the right end of the rack 42; the draw hook 52 can be inserted into the inner cavity of the limiting plate 51 in a vertically sliding way, the draw hook 52 is used for retracting the abdominal wall of a patient, and the left side wall of the draw hook 52 is provided with clamping grooves 53 from top to bottom at equal intervals; the second spring 54 and the clamping ball 55 are inserted into the left side of the inner cavity of the limiting plate 51 from inside to outside, and the clamping ball 55 enters the inner cavity of the clamping groove 53 to position the draw hook 52 under the action of the second spring 54;

the drag hook 52 moves up and down, under the condition that the clamping groove 53 presses the clamping ball 55, the clamping ball 55 and the clamping groove 53 can be freely separated until the drag hook 52 reaches a designated height, the second spring 54 pushes the clamping ball 55 to be inserted into the clamping groove 53 at a corresponding position under the action of self elasticity, positioning of the drag hook 52 is achieved, and the retraction depth of the drag hook 52 to the abdominal wall can be adjusted according to physique of a patient.

Specifically, the maximum length of the clamping ball 55 extending into the clamping groove 53 is smaller than the radius of the clamping ball, when the drag hook 52 moves up and down, the clamping groove 53 presses the clamping ball 55, the clamping ball 55 moves, and the clamping ball cannot be blocked in the clamping groove 53.

Specifically, the anti-shake mechanism 7 includes a support post 71, a universal ball 72 and a limiting component 73, and the support post 71 is fixedly connected to the right end of the support rod 6; the universal ball 72 can be rotationally embedded at the right end of the support column 71, and the universal ball 72 rotates on the support column 71 to realize the change of the angle of the guide rail 731; the limiting component 73 is arranged on the outer wall of the universal ball 72;

the limiting assembly 73 comprises a guide rail 731, a slide block 732, a clamping plate 733 and a clamping bolt 734, wherein the guide rail 731 is arranged on the outer wall of the universal ball 72, and the guide rail 731 is matched with the slide block 732 to realize the linear movement of the clamping plate 733; the slide block 732 can be inserted into the inner cavity of the guide rail 731 in a vertically sliding way; the clamping plate 733 is installed at the right side of the slider 732, and the clamping plate 733 has a U shape; the number of the clamping bolts 734 is two, the clamping bolts 734 are respectively screwed on the front side and the rear side of the clamping plate 733, the clamping bolts 734 are screwed to move towards the clamping plate 733, and the medical instrument can be clamped in the clamping plate 733;

when the medical instrument is required to be limited, the medical instrument is placed into the inner side of the clamping plate 733, the clamping bolt 734 is screwed, the medical instrument is clamped on the clamping plate 733 by the clamping bolt 734, the sliding block 732 slides in the guide rail 731, the medical instrument moves up and down, the universal ball 72 rotates in the supporting column 71, the angle of the medical instrument can be changed, and shake brought by hands during operation of the medical instrument is reduced.

Specifically, the interior cavity of rail 731 is dovetail-shaped to promote stability of movement of slider 732 within rail 731.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (4)

1. The utility model provides a fixed retractor of hepatobiliary surgery abdominal wall, includes base (1), two positioning bolt (2) and telescopic link (3), two positioning bolt (2) spiro union respectively is around the upper surface of base (1) both ends, telescopic link (3) are installed in the top central point of base (1), its characterized in that still includes:

a stretching mechanism (4) rotatably mounted on the top end of the telescopic rod (3);

the lifting mechanism (5) is arranged at the right end of the stretching mechanism (4);

one end of the supporting rod (6) is arranged at the top of the lifting mechanism (5);

the anti-shake mechanism (7) is arranged at the other end of the supporting rod (6);

the stretching mechanism (4) comprises:

the box body (41) is rotatably arranged at the top end of the telescopic rod (3), and a limiting groove is formed in the front side of the box body (41);

the rack (42) can be inserted into the inner cavity of the box body (41) in a sliding way left and right;

the number of the first springs (43) is two, and the first springs are respectively arranged at the left side and the right side of the limit groove of the box body (41);

the brake plate (44) can be inserted into the rear side of the limit groove of the box body (41) in a forward and backward sliding mode, teeth are arranged on the rear side of the brake plate (44), the teeth are clamped with the rack (42), and a sliding groove (45) is formed in the middle of the brake plate (44);

the compression bar (46) can be inserted into the top of the box body (41) in a vertically sliding manner;

the number of the stop blocks (47) is two, the stop blocks are respectively arranged at the bottom ends of the left side and the right side of the compression bar (46), and the stop blocks (47) are positioned in the inner cavity of the box body (41);

the lifting mechanism (5) comprises:

the limiting plate (51) is fixedly connected to the right end of the rack (42);

the draw hook (52) can be inserted into the inner cavity of the limiting plate (51) in a vertically sliding manner, and clamping grooves (53) are formed in the left side wall of the draw hook (52) at equal intervals from top to bottom;

the second spring (54) and the clamping ball (55) are inserted into the left side of the inner cavity of the limiting plate (51) from inside to outside, and the clamping ball (55) enters the inner cavity of the clamping groove (53) to position the draw hook (52) under the action of the second spring (54);

the anti-shake mechanism (7) includes:

the support column (71) is fixedly connected to the right end of the support rod (6);

a universal ball (72) which is rotatably embedded in the right end of the support column (71);

the limiting assembly (73) is arranged on the outer wall of the universal ball (72);

the limit assembly (73) comprises:

a guide rail (731) installed on the outer wall of the universal ball (72);

a slide block (732) which can be inserted into the inner cavity of the guide rail (731) in a vertically sliding way;

a clamping plate (733) mounted on the right side of the slider (732), and the clamping plate (733) is U-shaped;

and the clamping bolts (734) are two in number and are respectively screwed on the front side and the rear side of the clamping plate (733).

2. The abdominal wall fixation retractor for hepatobiliary surgery according to claim 1, wherein the front side of the cavity of the chute (45) and the front bottom of the compression bar (46) are both beveled.

3. A hepatobiliary abdominal wall fixation retractor according to claim 1, wherein the maximum length of the snap ball (55) extending into the snap groove (53) is smaller than its own radius.

4. The abdominal wall fixation retractor of claim 1 wherein the guide rail (731) has a dovetail shape in its lumen.