A pair of surgical scissors

Abstract

The present invention relates to the technical field of medical supplies, and specifically to a pair of surgical scissors, which includes an upper sliding rod and a lower sliding rod. One side of the upper sliding rod is in contact with the lower sliding rod. A blade is provided at the same end of the upper sliding rod and the lower sliding rod, and both the upper sliding rod and the lower sliding rod are connected to the blade. The other end of the upper sliding rod is fixedly connected with a finger ring, and the other end of the lower sliding rod is provided with another finger ring, and a rotating device is connected between the other finger ring and the lower sliding rod. The blade includes an upper blade and a lower blade. The upper blade and the lower blade are rotatably connected to the lower sliding rod, and the upper blade and the lower blade are slidably connected to the upper sliding rod through the bosses on their bodies. The present invention can achieve that during a small-incision operation, the surgical scissors can symmetrically and evenly cut and separate tissues, and there will be no hinge mechanism protruding out.

Description

Technical Field

[0001] The present invention relates to the technical field of medical supplies, and particularly to a pair of surgical scissors. Background Art

[0002] Most traditional double-joint surgical scissors have a single-sided opening at the upper head and a fixed lower head, and cannot be opened symmetrically like ordinary single-joint surgical scissors; some double-joint surgical scissors also have a double-opening type, but during the opening process, a hinge mechanism will protrude from the connection between the head part and the rod part and retract when closed. The single-sided opening surgical scissors cannot shear and separate tissues symmetrically and evenly. For ordinary double-opening surgical scissors, during the opening process, a hinge mechanism will protrude from the connection between the head part and the rod part and retract when closed, which has the risk of jamming tissues, damaging tissues, and affecting the service life of the instrument. Therefore, we need to study a new pair of surgical scissors. Summary of the Invention

[0003] The purpose of the present invention is to provide a pair of surgical scissors to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A pair of surgical scissors includes an upper sliding rod and a lower sliding rod. One side of the upper sliding rod contacts the lower sliding rod. Blades are provided at the same end of the upper sliding rod and the lower sliding rod, and both the upper sliding rod and the lower sliding rod are connected to the blades. Another end of the upper sliding rod is fixedly connected with a finger ring, and another finger ring is provided at the other end of the lower sliding rod, and a rotating device is connected between the other finger ring and the lower sliding rod. The blades include an upper blade and a lower blade. The upper blade and the lower blade are rotatably connected to the lower sliding rod, and the upper blade and the lower blade are slidably connected to the upper sliding rod through the bosses on their bodies.

[0005] The blades include a middle plate, a lower blade, an upper blade, and side ear plates. One end of the middle plate is integrally connected to the upper sliding rod. A lower blade is provided on one side of the middle plate, and an upper blade is provided on the other side of the middle plate. Side ear plates are provided on the side of the lower blade away from the middle plate, and another side ear plate is provided on the side of the upper blade away from the middle plate. The same ends of the two side ear plates are integrally connected to the lower sliding rod. One side ear plate is hinged to the upper blade, and the other side ear plate is hinged to the lower blade. The same ends of the upper blade and the lower blade are both connected to the middle plate. A sliding cylinder is provided at the waist positions of the upper sliding rod and the lower sliding rod. The sliding cylinder sleeves outside the upper sliding rod and the lower sliding rod. A T-shaped pin is provided on the side wall of the sliding cylinder, and the T-shaped pin is threadedly connected to the upper sliding rod. The rotating device includes a spring piece and a control plate. One end of the spring piece is fixedly connected to the lower sliding rod, and the other end of the spring piece is hinged to the control plate. One end of the control plate is fixedly connected to the finger ring.

[0006] Preferably, through holes are formed in the control board, and one end of the control board extends into a plate-shaped groove formed in the finger ring. A shaft rod is movably sleeved in the through hole of the control board, and the end of the shaft rod is fixedly connected to the inner wall of the plate-shaped groove of the finger ring. A cylinder is fixedly penetrated through the control board, and the cylinder on the control board penetrates through a through hole formed in the spring piece, and the control board is located in a groove formed in the spring piece.

[0007] Preferably, one chute is formed in each of the two plate surfaces of the middle plate, and the two chutes are symmetrically and crossly distributed. A control column is fixedly connected to each of the upper blade and the lower blade, and one end of the control column extends into the chute.

[0008] Preferably, both the upper sliding rod and the lower sliding rod are semi-cylindrical.

[0009] Preferably, a plate-shaped hole is formed in the plate body of the middle plate, a cross bar is fixedly connected between the two side ear plates, the cross bar penetrates through the plate-shaped hole, a protruding column is fixedly connected to the side ear plate, and one end of the protruding column on one side ear plate extends into a through hole formed in the upper blade, and one end of the protruding column on the other side ear plate extends into a through hole formed in the lower blade.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. The present invention can achieve that during a small-incision operation, the surgical scissors can symmetrically and evenly cut and separate tissues, and no hinge mechanism will protrude.

[0012] 2. The surgical scissors of the present invention will not damage tissues and affect the service life of the instrument, and are safer and more efficient during the operation, and are very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present invention;

[0014] Figure 2 is a distribution diagram of the chute positions;

[0015] Figure 3 is a schematic structural diagram of the middle plate;

[0016] Figure 4 is a schematic structural diagram of the side ear plate.

[0017] In the figure: 1 upper sliding rod, 2 lower sliding rod, 3 blade device, 4 finger ring, 5 rotating device, 6 middle plate, 7 lower blade, 8 upper blade, 9 side ear plate, 10 sliding cylinder, 11 spring piece, 12 control board, 13 chute, 14 control column, 15 plate-shaped hole, 16 cross bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 4 , the present invention provides a technical solution: a pair of surgical scissors, including an upper sliding rod 1 and a lower sliding rod 2. One side of the upper sliding rod 1 is in contact with the lower sliding rod 2. Both the upper sliding rod 1 and the lower sliding rod 2 are semi-cylindrical. A blade 3 is provided at the same end of the upper sliding rod 1 and the lower sliding rod 2, and both the upper sliding rod 1 and the lower sliding rod 2 are connected to the blade 3. A finger ring 4 is fixedly connected to the other end of the upper sliding rod 1, and another finger ring 4 is provided at the other end of the lower sliding rod 2, and a rotating device 5 is connected between the other finger ring 4 and the lower sliding rod 2. The blade 3 includes an upper blade 8 and a lower blade 7. The upper blade 8 and the lower blade 7 are rotatably connected to the lower sliding rod 2, and the upper blade 8 and the lower blade 8 are slidably connected to the upper sliding rod through the bosses on their bodies. The blade 3 includes a middle plate 6, a lower blade 7, an upper blade 8 and side ear plates 9. One end of the middle plate 6 is integrally connected to the upper sliding rod 1. A lower blade 7 is provided on one side of the middle plate 6, and an upper blade 8 is provided on the other side of the middle plate 6. Side ear plates 9 are provided on the side of the lower blade 7 away from the middle plate 6, and another side ear plate 9 is provided on the side of the upper blade 8 away from the middle plate 6. The same ends of the two side ear plates 9 are integrally connected to the lower sliding rod 2. One side ear plate 9 is hingedly connected to the upper blade 8, and the other side ear plate 9 is hingedly connected to the lower blade 7. The same ends of the upper blade 8 and the lower blade 7 are both connected to the middle plate 6. A sliding cylinder 10 is provided at the waist positions of the upper sliding rod 1 and the lower sliding rod 2. The sliding cylinder 10 is sleeved outside the upper sliding rod 1 and the lower sliding rod 2. A T-shaped pin is provided on the side wall of the sliding cylinder 10, and the T-shaped pin is threadedly connected to the upper sliding rod 1. The rotating device 5 includes a spring piece 11 and a control plate 12. One end of the spring piece 11 is fixedly connected to the lower sliding rod 2, and the other end of the spring piece 11 is hinged with a control plate 12. One end of the control plate 12 is fixedly connected to the finger ring 4. Through the rotational connection and the sliding connection, the double-joint surgical scissors realize double opening at the head, and there will be no hinge mechanism protruding from the connection between the head component and the rod component. The present invention can achieve that in a small-incision operation, the surgical scissors can symmetrically and evenly cut and separate tissues, and there will be no hinge mechanism protruding.

[0020] The control board 12 is provided with through holes, and one end of the control board 12 extends into the plate-shaped groove formed on the finger ring 4. A shaft rod is movably sleeved in the through hole of the control board 12, and the end of the shaft rod is fixedly connected to the inner wall of the plate-shaped groove of the finger ring 4. A cylinder is fixedly penetrated through the control board 12. The cylinder on the control board 12 penetrates through the through hole formed on the spring piece 11, and the control board 12 is located in the groove formed on the spring piece 11. In this way, by operating the finger ring, during a small-incision surgery, the surgical scissors can symmetrically and evenly cut and separate tissues, and there will be no hinge mechanism protruding out.

[0021] Each of the two plate surfaces of the middle plate 6 is provided with a sliding groove 13, and the two sliding grooves 13 are symmetrically and crosswise distributed. A control column 14 is fixedly connected to each of the upper blade 8 and the lower blade 7. One end of the control column 14 extends into the sliding groove 13. Refer to Figure 2 , which is a cross-sectional view of the middle plate 6, showing the sliding groove 13 on the back surface of the middle plate 6. The sliding groove 13 slopes upward from left to right, while Figure 2 the control column 14 on [the relevant part] is fixedly connected to the lower blade 7. A control column 14 is fixedly connected to the back surface of the upper blade 8, which is blocked and not shown. A sliding groove 13 is formed on the front surface of the middle plate 6, and the sliding groove 13 on the front surface slopes downward from left to right. In this way, during a small-incision surgery, the surgical scissors can symmetrically and evenly cut and separate tissues, and there will be no hinge mechanism protruding out.

[0022] A plate-shaped hole 15 is formed on the plate body of the middle plate 6. A cross bar 16 is fixedly connected between the two side ear plates 9. The cross bar 16 penetrates through the plate-shaped hole 15. A protruding column is fixedly connected to the side ear plate 9. One end of the protruding column on one side ear plate 9 extends into the through hole formed on the upper blade 8, and one end of the protruding column on the other side ear plate 9 extends into the through hole formed on the lower blade 7. The connection method is simple, there is no need for a hinge mechanism to protrude out, and the surgical scissors can symmetrically and evenly cut and separate tissues.

[0023] Working principle: Refer to Figure 1 , when the two finger rings 4 are opened by hand, the upper sliding rod 1 and the lower sliding rod 2 slide misaligned. It can be understood that the upper sliding rod 1 remains stationary, and the lower sliding rod 2 axially moves leftward relative to the upper sliding rod 1. The lower sliding rod 2 drives the two side ear plates 9 to move. One side ear plate 9 is hinged to the upper blade 8 and thus drives the upper blade 8 to move, and the other side ear plate 9 is hinged to the lower blade 7 and thus drives the lower blade 7 to move. Refer to Figure 2, The lower blade 7 moves leftward, and the control post 14 on the lower blade 7 moves leftward. Due to the guiding of the chute 13, the control post 14 will move downward. The protruding post on the lower blade 7 serves as the hinge point, so the left end of the lower blade 7 moves upward, that is, the lower blade 7 rotates clockwise. Similarly, the upper blade 8 rotates counterclockwise. In this way, the lower blade 7 and the upper blade 8 symmetrically move away from each other. When the two finger rings 4 are closed, the lower blade 7 and the upper blade 8 approach to produce a shearing effect. The cooperation design of the plate-shaped hole 15 and the cross bar 16 ensures the stable parallel misalignment of the ends of the upper slide bar 1 and the lower slide bar 2.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surgical scissors, comprising an upper sliding rod (1) and a lower sliding rod (2), with the lower sliding rod (2) in contact with one side of the upper sliding rod (1). Characterized in that: Blades (3) are provided at the same end of the upper sliding rod (1) and the lower sliding rod (2), and both the upper sliding rod (1) and the lower sliding rod (2) are connected to the blades (3). At the other end of the upper sliding rod (1), a finger ring (4) is fixedly connected. At the other end of the lower sliding rod (2), another finger ring (4) is provided, and a rotating device (5) is connected between this another finger ring (4) and the lower sliding rod (2). The blades (3) include an upper blade (8) and a lower blade (7). The upper blade (8) and the lower blade (7) are rotatably connected to the lower sliding rod (2), and the upper blade (8) and the lower blade (8) are slidably connected to the upper sliding rod through the bosses on their bodies. The blades (3) further include a middle plate (6) and side ear plates (9). One end of the middle plate (6) is integrally connected to the upper sliding rod (1). A lower blade (7) is provided on one side of the middle plate (6), and an upper blade (8) is provided on the other side of the middle plate (6). Side ear plates (9) are provided on the side of the lower blade (7) away from the middle plate (6). Another side ear plate (9) is provided on the side of the upper blade (8) away from the middle plate (6). And the same ends of the two side ear plates (9) are both integrally connected to the lower sliding rod (2). One side ear plate (9) is hingedly connected to the upper blade (8), and the other side ear plate (9) is hingedly connected to the lower blade (7). And the same ends of the upper blade (8) and the lower blade (7) are both connected to the middle plate (6). At the waist positions of the upper sliding rod (1) and the lower sliding rod (2), a sliding cylinder (10) is provided. The sliding cylinder (10) is sleeved outside the upper sliding rod (1) and the lower sliding rod (2). A T-shaped pin is provided on the side wall of the sliding cylinder (10), and the T-shaped pin is welded to the upper sliding rod (1). The rotating device (5) includes a spring piece (11) and a control plate (12). One end of the spring piece (11) is fixedly connected to the lower sliding rod (2), and the other end of the spring piece (11) is hinged with the control plate (12). One end of the control plate (12) is fixedly connected to the finger ring (4). One chute (13) is provided on each of the two plate surfaces of the middle plate (6), and the two chutes (13) are symmetrically and crossly distributed. A control column (14) is fixedly connected to each of the upper blade (8) and the lower blade (7), and one end of the control column (14) extends into the chute (13). A plate-shaped hole (15) is provided on the plate body of the middle plate (6). A cross bar (16) is fixedly connected between the two side ear plates (9). The cross bar (16) penetrates through the plate-shaped hole (15). A protruding column is fixedly connected to the side ear plate (9). One end of the protruding column on one side ear plate (9) extends into the through hole provided on the upper blade (8), and one end of the protruding column on the other side ear plate (9) extends into the through hole provided on the lower blade (7).

2. A surgical scissors according to claim 1, Characterized in that: The control board (12) is provided with a through hole, and one end of the control board (12) extends into a plate-shaped groove formed in the finger ring (4). A shaft rod is movably sleeved in the through hole of the control board (12), and the end of the shaft rod is fixedly connected to the inner wall of the plate-shaped groove of the finger ring (4). A cylinder is fixedly penetrated through the control board (12), and the cylinder on the control board (12) penetrates through a through hole formed in the spring piece (11), and the control board (12) is located in a groove formed in the spring piece (11).

3. A pair of surgical scissors according to claim 1, wherein: both the upper sliding rod (1) and the lower sliding rod (2) are semi-cylindrical in shape.

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