Surgical retractor structure

Abstract

The utility model discloses an operation retractor structure which comprises a scissor fork structure, angle adjusting structures are arranged on the left side and the right side of the scissor fork structure respectively, a retraction portion is arranged on the angle adjusting structures, a plurality of L-shaped retraction teeth are arranged on the retraction portion at intervals, the number of the L-shaped retraction teeth on the two sides is the same, and the L-shaped retraction teeth on the two sides are arranged in an aligned mode. Staggered teeth on the two sides of the incision device are designed to be aligned, under the condition that normal opening of the incision position is not affected, dislocation deformation of skin on the edge of the incision can be prevented, operation can be better facilitated, a lead screw adjusting structure is designed, the opening and closing distance and the fixing angle of incision parts on the two sides can be stably adjusted, adjustment is more stable and convenient, and operation is more convenient. The adjusting flexibility in the operation process is better.

Description

Technical Field

[0001] The utility model relates to surgical instruments, in particular to a structure of a surgical retractor. Background Art

[0002] In the existing surgical retractor, the tooth teeth on both sides are designed with dislocation respectively. When observing by stretching at the skin incision position, the skin positions on both sides of the incision are prone to dislocation and deformation. Moreover, the opening and closing distance of the existing retractor cannot be stably adjusted and fixed, and it is prone to displacement after being stretched.

[0003] Therefore, the existing surgical instruments need to be further improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a structure of a surgical retractor, which changes the tooth teeth with dislocation design to alignment design, and is designed with a screw rod adjustment structure for stable adjustment of the opening and closing position.

[0005] In order to achieve the above purpose, the utility model adopts the following scheme:

[0006] A structure of a surgical retractor includes a scissors structure, angle adjustment structures are respectively arranged on the left and right sides of the scissors structure, a retracting part is arranged on the angle adjustment structure, and a plurality of L-shaped incision teeth are arranged at intervals on the retracting part. The number of the plurality of L-shaped incision teeth on both sides is the same and they are arranged in alignment;

[0007] A opening and closing adjustment structure is arranged on the scissors structure;

[0008] A screw rod adjustment assembly is arranged between the opening and closing adjustment structure and the scissors structure.

[0009] Furthermore, the scissors structure includes a left scissors arm, a right scissors arm and a middle shaft frame. Rotating shaft holes are respectively arranged in the middle parts of the left scissors arm and the right scissors arm, and the two rotating shaft holes are sleeved in the middle shaft frame for rotation.

[0010] Furthermore, the angle adjustment structure includes hinge parts respectively arranged at the outer ends of the left scissors arm and the right scissors arm, rotating parts are arranged on the hinge parts, and the lower ends of the left scissors arm and the right scissors arm are respectively fixed on a corresponding rotating part.

[0011] Furthermore, the opening and closing adjustment structure includes straight groove openings arranged on the left scissors arm and the right scissors arm, driving shafts are movably arranged in the straight groove openings, and a connecting rod is arranged between the two driving shafts.

[0012] Further, the lead screw adjustment assembly includes a rotating shaft mounting seat disposed on the central shaft frame. An adjustment lead screw is rotatably disposed on the rotating shaft mounting seat. A threaded hole is provided on the connecting rod, and the adjustment lead screw passes through and is threadedly connected to the threaded hole.

[0013] In summary, the beneficial effects of the present utility model compared with the prior art are as follows:

[0014] The present utility model solves the deficiencies existing in the existing surgical retractor. Through the structural arrangement of the present utility model, the following advantages are achieved. The misaligned teeth on both sides of the dissector are designed to be aligned. Without affecting the normal expansion of the incision position, it can also prevent the skin at the incision edge from being misaligned and deformed, which is more conducive to the operation. And a lead screw adjustment structure is designed, which can stably adjust the opening and closing distance and the fixed angle of the dissector parts on both sides. The adjustment is more stable and convenient, and the adjustment flexibility during the operation process is better, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is a structural schematic diagram of the present utility model;

[0017] Figure 3 is Figure 2 a partial enlarged view of part A of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3 , the present utility model provides a surgical retractor structure, which includes a scissors structure 1. Angle adjustment structures 2 are respectively arranged on the left and right sides of the scissors structure 1. A retraction part 3 is arranged on the angle adjustment structure 2. A plurality of L-shaped retraction teeth 4 are arranged at intervals on the retraction part 3. The number of the plurality of L-shaped retraction teeth 4 on both sides is the same and they are arranged in alignment;

[0020] A opening and closing adjustment structure 5 is arranged on the scissors structure 1;

[0021] A lead screw adjustment assembly 6 is arranged between the opening and closing adjustment structure 5 and the scissors structure 1;

[0022] The multiple L-shaped retracting teeth 4 on both sides are aligned one by one, which retains the original incision position expansion function and can also prevent the skin at the edge of the incision from being dislocated and deformed;

[0023] The movement of the opening and closing adjustment structure 5 can be controlled by manipulating the screw rod adjustment assembly 6. During the movement of the opening and closing adjustment structure 5, the opening and closing position of the scissors-type structure 1 is adjusted to change the angle of the retraction part 3 on both sides. When the adjustment of the screw rod adjustment assembly 6 is stopped, the scissors-type structure 1 will not change its angle, and the stability is better.

[0024] The scissor structure 1 of the present invention comprises a left scissor arm 101, a right scissor arm 102 and a middle frame 103. A rotating shaft hole is respectively arranged in the middle of the left scissor arm 101 and the right scissor arm 102. The two rotating shaft holes are sleeved in the middle frame 103 for rotation.

[0025] The left scissor arm 101 and the right scissor arm 102 are hinged to the middle shaft frame 103, and the left scissor arm 101 and the right scissor arm 102 can rotate around the middle shaft frame 103;

[0026] The angle adjustment structure 2 of the present invention comprises a hinged portion 201 disposed at the outer end of each of the left scissor arm 101 and the right scissor arm 102, a rotating member 202 is disposed on the hinged portion 201, and the lower ends of the left scissor arm 101 and the right scissor arm 102 are respectively fixed to a corresponding one of the rotating members 202;

[0027] The rotating member 202 can be turned around the hinged portion 201 to change the turning angle of the L-shaped pulling teeth 4 .

[0028] The opening and closing adjustment structure 5 of the present invention comprises a straight slot 501 provided on the left scissor arm 101 and the right scissor arm 102, a driving shaft 502 is movably provided in the straight slot 501, and a connecting rod 503 is provided between the two driving shafts 502;

[0029] When the connecting rod 503 moves, the driving shafts 502 on the corresponding two sides will also move synchronously. The further outward the connecting rod 503 moves, the smaller the opening angle of the straight slots 501 on both sides becomes, and vice versa.

[0030] The screw adjustment assembly 6 of the present invention comprises a shaft mounting seat 601 arranged on the middle shaft frame 103, an adjustment screw 602 is rotatably arranged on the shaft mounting seat 601, a screw hole 603 is arranged on the connecting rod 503, and the adjustment screw 602 passes through and is threadedly connected to the screw hole 603;

[0031] The adjusting lead screw 602 is installed in the rotating shaft mounting seat 601 and can only perform rotational movement and cannot perform axial movement; when the adjusting lead screw 602 is rotated, at this time, when the adjusting lead screw 602 is rotated and cooperates with the threaded hole 603, at this time, the connecting rod 503 can only perform axial movement along the axial direction of the adjusting lead screw 602, and the driving shafts 502 on both sides will be driven to adjust the axial position during the process.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A surgical retractor structure, comprising a scissors structure (1), characterized in that: On both the left and right sides of the scissor structure (1), an angle adjustment structure (2) is provided. A retracting portion (3) is provided on the angle adjustment structure (2). A plurality of L-shaped retracting teeth (4) are spaced apart on the retracting portion (3). The number of the plurality of L-shaped retracting teeth (4) on both sides is the same and they are arranged in alignment. A opening and closing adjustment structure (5) is provided on the scissor structure (1). A lead screw adjustment assembly (6) is provided between the opening and closing adjustment structure (5) and the scissor structure (1).

2. The structure of a surgical retractor according to claim 1, wherein: The scissor structure (1) includes a left scissor arm (101), a right scissor arm (102) and a middle shaft frame (103). A rotating shaft hole is provided in the middle of each of the left scissor arm (101) and the right scissor arm (102). The two rotating shaft holes are sleeved in the middle shaft frame (103) for rotation.

3. The structure of a surgical retractor according to claim 2, wherein: The angle adjustment structure (2) includes hinge portions (201) provided at the outer ends of the left scissor arm (101) and the right scissor arm (102). A rotating member (202) is provided on the hinge portion (201). The lower ends of the left scissor arm (101) and the right scissor arm (102) are respectively fixed to one of the rotating members (202).

4. The structure of a surgical retractor according to claim 3, wherein: The opening and closing adjustment structure (5) includes straight slot openings (501) provided on the left scissor arm (101) and the right scissor arm (102). A drive shaft (502) is movably provided in the straight slot openings (501). A connecting rod (503) is provided between the two drive shafts (502).

5. The structure of a surgical retractor according to claim 4, wherein: The lead screw adjustment assembly (6) includes a rotating shaft mounting seat (601) provided on the middle shaft frame (103). An adjustment lead screw (602) is rotatably provided on the rotating shaft mounting seat (601). A threaded hole (603) is provided on the connecting rod (503). The adjustment lead screw (602) passes through and is threadedly connected to the threaded hole (603).

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