Open adjustable surgical scissors

Abstract

The application discloses open adjustable surgical scissors, and relates to the technical field of medical devices, which comprises a first scissor body and a second scissor body, wherein the first scissor body and the second scissor body are connected through a hinge joint, the first scissor body comprises a first cutter body, a first handle body and a first handle, the second scissor body comprises a second cutter body, a second handle body and a second handle, the first handle body is externally connected with a sliding block in a sliding mode, and the working side of the sliding block is in abutment with the inner side of the second handle body. The application has the advantages of simple structure, low manufacturing cost, simple operation, adjustable opening of the surgical scissors, different shearing lengths, easier control of the shearing length, and prevention of shearing of blood vessels.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a surgical scissors with an adjustable opening. Background Technology

[0002] like Figure 3 As shown, in surgical procedures or animal experiments, it is often necessary to cut arteries and veins in half. As shown in the figure, the incision can be made vertically, in the shape of a "C", or at other angles, in the shape of a "V".

[0003] However, most blood vessels are relatively thin, especially in experiments on small animals. For example, when cannulating the external carotid artery in a rat, the artery must first be partially cut, and even in a 220g rat, the carotid artery is only 0.5mm to 0.8mm in diameter. Existing surgical scissors cannot control the closure angle, making it very easy to cut blood vessels during operation. Furthermore, existing surgical scissors have "arc" or "V" shaped notches at the tip. While these scissors are less likely to cut blood vessels, the size of the notch cannot be adjusted according to the actual condition of the blood vessels and the required cut size. Cutting blood vessels of different sizes requires multiple types of surgical scissors, resulting in high operating costs.

[0004] Therefore, those skilled in the art need to provide a surgical scissor with an adjustable opening that can limit the closing angle of the scissors, making it less likely to cut blood vessels, while also allowing the closing angle to be adjusted as needed to adapt to surgical requirements for cutting different sizes. Summary of the Invention

[0005] The purpose of this invention is to provide a surgical scissor with an adjustable opening, which solves the problem of how to limit the closing angle of the surgical scissors and adjust the closing angle as needed, thereby controlling the cutting length and avoiding cutting blood vessels.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The present invention provides a surgical scissors with adjustable opening, comprising a first scissor body and a second scissor body, the first scissor body and the second scissor body being connected by a hinge point. The first scissor body comprises an integrally formed first blade, a first handle, and a first grip. The second scissor body comprises an integrally formed second blade, a second handle, and a second grip. A slider is slidably connected to the outside of the first handle, and the working side of the slider abuts against the inside of the second handle.

[0008] Preferably, the first handle is a long, thin rod of equal width, the second handle is a long rod with an incline on its inner side, and the inclined inner side of the second handle is opposite to that of the first handle.

[0009] Preferably, the connecting hole on the slider is matched in size with the first handle, and the working end of the slider and the inclined inner side of the second handle are arranged opposite to each other and abut together.

[0010] Preferably, the slider is a right-angled trapezoidal slider, or is configured as a polygon with a pointed end.

[0011] Preferably, the width of the second handle decreases from the second blade towards the second grip.

[0012] Preferably, the lower width and length of the slider do not exceed the height of the end step on the right side of the first grip.

[0013] Preferably, the first handle is provided with a scale, the scale increasing sequentially from the first grip to the first blade, with the zero mark located at the bottom of the first handle; the scale represents the depth of the opening at the tip of the surgical scissors.

[0014] Preferably, the scale range is 0 to 3.0 mm, and the unit scale is 0.1 mm.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0016] This invention discloses a surgical scissor with an adjustable opening. When the slider slides along the first handle, the slider and the second handle abut against each other, limiting the size of the opening of the surgical scissor. By sliding the slider along the first handle to different positions, the opening of the surgical scissor can be adjusted. During operation, the surgical scissor is adjusted by holding the handle so that the slider and the second handle abut against each other. At this time, the surgical scissor is in an open position, which is the position where the blood vessel needs to be cut. The operator places the blood vessel to be cut between the first and second blades, and then slides the slider down along the first handle to cut the blood vessel to the required length.

[0017] This device has a simple structure, low manufacturing cost, and simple operation. It allows for adjustable opening of the surgical scissors, enabling the cutting of different lengths and making it easier to control the cutting length, thereby avoiding cutting blood vessels. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the surgical scissors in the open state when the slider of the present invention is sliding;

[0020] Figure 2 This is a schematic diagram of the closed state of the surgical scissors of the present invention;

[0021] Figure 3 This is a schematic diagram illustrating the types of blood vessel shearing in this invention.

[0022] Explanation of reference numerals in the attached drawings: 1. First shear body; 2. First blade body; 3. First handle body; 4. First grip; 5. Second shear body; 6. Second blade body; 7. Second handle body; 8. Second grip; 9. Hinge point; 10. Slider. Detailed Implementation

[0023] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] like Figure 1-3 As shown, an adjustable-aperture surgical scissors includes a first scissor body 1 and a second scissor body 5, which are connected by a hinge point 9. The first scissor body 1 includes an integrally formed first blade 2, a first handle 3, and a first grip 4. The second scissor body 5 includes an integrally formed second blade 6, a second handle 7, and a second grip 8. A slider 10 is slidably connected to the outside of the first handle 3, and the working side of the slider 10 abuts against the inside of the second handle 7.

[0025] like Figure 1 As shown, the first handle 3 is a long, thin rod of equal width, and the second handle 7 is a long rod with an incline on its inner side. The inclined inner side of the second handle 7 is positioned opposite to the first handle 3.

[0026] The connecting hole on the slider 10 matches the size of the first handle 3, and the working end of the slider 10 and the inclined inner side of the second handle 7 are arranged opposite each other and abut together.

[0027] The slider 10 is a right-angled trapezoidal slider, or a polygon with a pointed end, or other feasible geometry.

[0028] In one specific embodiment, the slider 10 is a right-angled trapezoidal slider, with the lower width and length of the slider 10 facing the top of the first handle 4 and the upper width and length of the slider 10 facing the bottom of the first blade body 2.

[0029] Specifically, when the slider 10 slides along the first handle 3, the slider and the second handle 7 abut against each other, which limits the size of the opening of the surgical scissors. When the slider 10 slides along the first handle 3 to different positions, the opening of the surgical scissors can be adjusted. When the slider 10 slides to the top of the first handle 3, the opening of the surgical scissors is the largest. When the slider 10 moves along the first handle 3 towards the first grip 4, the opening of the surgical scissors gradually decreases.

[0030] The width of the second handle 7 decreases from the second blade 6 toward the second grip 8.

[0031] like Figure 2 As shown, the lower width and length of the slider 10 do not exceed the height of the end step on the right side of the first handle 4. When the slider 10 slides to the bottom of the first handle 3, the surgical scissors can be completely closed.

[0032] The first handle 3 is provided with a scale, which increases sequentially from the first grip 4 to the first blade 2, with the zero mark set at the bottom of the first handle 3; the scale is the depth of the opening at the tip of the surgical scissors.

[0033] The scale ranges from 0 to 3.0 mm, with each unit scale being 0.1 mm. The scale is set on the first handle 3 and enlarged proportionally.

[0034] The process of using this invention is as follows:

[0035] When slider 10 slides to the zero mark position of the first handle 3, the first handle 3 and the second handle 7 approach each other and drive the first blade 2 and the second blade 6 to close. At this time, the tip of the surgical scissors has no opening. As slider 10 gradually moves upward, the first handle 3 and the second handle 7 gradually move away from each other and drive the tip opening of the first blade 2 and the second blade 6 to open. When slider 10 reaches the top, the opening depth of the first blade 2 and the second blade 6 reaches its maximum value, which is 3.0 mm.

[0036] When in use, adjust the surgical scissors by gripping the handle so that the slider 10 and the second handle 7 come into contact. At this time, the surgical scissors are in an open position, which is the position where the blood vessel needs to be cut. The operator places the blood vessel to be cut between the first blade 2 and the second blade 6, and then slides the slider 10 down along the first handle 3 to cut the blood vessel to the required length.

[0037] Because the slider 10 abuts against the second handle 7, the opening size of the surgical scissors is limited, thereby limiting the cutting length. This prevents the operator from cutting the blood vessel too long, avoiding the effect of cutting the blood vessel, and allows for precise control of the length of the blood vessel being cut.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A type of surgical scissors with an adjustable opening, characterized in that: The first scissor (1) and the second scissor (5) are connected by a hinge point (9). The first scissor (1) includes an integrally formed first blade (2), a first handle (3) and a first grip (4). The second scissor (5) includes an integrally formed second blade (6), a second handle (7) and a second grip (8). A slider (10) is slidably connected to the outside of the first handle (3). The working side of the slider (10) abuts against the inside of the second handle (7). The inner side of the second handle (7) is inclined, so that the width of the second handle (7) decreases from the second blade (6) towards the second grip (8). The slider (10) is a right-angled trapezoidal slider or a polygon with a pointed tip. The working end of the slider (10) is set opposite to and abuts against the inclined inner side of the second handle (7). The opening size of the first blade (2) and the second blade (6) can be adjusted by sliding the slider (10) along the first handle (3). The first handle (3) is a long thin rod of equal width, the second handle (7) is a long rod, and the inner side of the long rod has an inclination, and the inclination of the inner side of the second handle (7) is opposite to that of the first handle (3); The connecting hole on the slider (10) matches the size of the first handle (3), and the working end of the slider (10) and the inner side of the second handle (7) with an incline are arranged opposite to each other and abut together; The slider (10) is a right-angled trapezoidal slider, or is set as a polygon with a pointed end; The width of the second handle (7) decreases from the second blade (6) toward the second grip (8); The first handle (3) is provided with a scale, which increases sequentially from the first grip (4) to the first blade (2), with the zero mark set at the bottom of the first handle (3); the scale is the depth of the opening at the top of the surgical scissors; The scale ranges from 0 to 3.0 mm, with each unit being 0.1 mm.

2. The surgical scissors with adjustable opening according to claim 1, characterized in that: The lower width and length of the slider (10) shall not exceed the height of the end step on the right side of the first grip (4).

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