Surgical knife head and microwave surgical knife

Abstract

A surgical knife head comprises a cutting end and a coaxial cylindrical interface end, and the cutting end comprises a first surface, a second surface and a foremost end edge part; the cutting tool is characterized in that the cutting ends forming the upper surface and the lower surface by the first surface and the second surface are integrally upwarped in a circular arc shape. The cross section of the coaxial cylindrical interface end is used as an observation surface, a torsion angle is formed in the whole clockwise direction around the circle center axis of the coaxial cylindrical interface end on the edge part of the foremost end of the cutting end, and the torsion angle ranges from 0 degree to 45 degrees. By the adoption of the technical scheme, the two surfaces of the scalpel head can be more tightly attached to cut tissue in the operation implementation process, an operation doctor can observe the positions of the two surfaces of the scalpel head relative to the cut tissue at the same time, and the technical effects of improving the cutting precision and the like are achieved.

Description

Technical Field

[0001] This invention relates to a medical device, namely a surgical blade and a microwave surgical blade on which the blade is mounted. Background Technology

[0002] Microwave scalpels are commonly used instruments in minimally invasive surgery. The scalpel tip is the key component for tissue cutting during surgery. The structure of the traditional microwave scalpel tip 1 is as follows: Figure 1 , Figure 2 As shown, the blade 1 includes a cutting end consisting of a first surface 101 and a second surface 102 forming upper and lower cutting ends. Both the first surface 101 and the second surface 102 are flat planes without curvature. This means that when performing laparoscopic or other surgeries, the surgeon cannot simultaneously observe the relative positions of the two surfaces on the blade and the tissue being cut. Furthermore, the traditional blade cannot achieve a close fit with the tissue being cut, affecting the surgical outcome. These problems urgently need to be solved. Summary of the Invention

[0003] The present invention aims to solve the technical problem of how to make the surgical blade fit more closely and cut tissue more precisely during the surgical procedure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a surgical blade tip, comprising a cutting end and a coaxial cylindrical interface end, wherein the cutting end includes a first surface, a second surface, and a foremost edge portion; characterized in that: the first surface and the second surface, constituting the upper and lower surfaces, of the cutting end are generally arc-shaped and upward-curved. The surgical blade tip is further characterized in that: taking the cross-section of the coaxial cylindrical interface end as the observation plane, the foremost edge portion of the cutting end, around the central axis of the coaxial cylindrical interface end, has a torsion angle in a clockwise direction, the torsion angle ranging from 0 to 45 degrees. The surgical blade tip is further characterized in that: the foremost edge portion of the cutting end, relative to the central axis of the coaxial cylindrical interface end, has an upward curvature of 0-3 mm. The surgical blade tip is further characterized in that: both the first surface and the second surface are based on an arc-shaped curve, with a wave-shaped raised surface at the center of the surface, the wave-shaped raised surface relative to the corresponding arc-shaped curve base ranging from 0-2 mm. The surgical blade head is further characterized in that: the torsion angle is 12 degrees. The surgical blade head is further characterized in that: the maximum width of the surgical blade head is 2-5 mm, and the maximum length is 20-25 mm. The surgical blade head is further characterized in that: the maximum width of the surgical blade head is 4 mm, and the maximum length is 22.3 mm. The surgical blade head is further characterized in that: the foremost edge of the cutting end can be either a continuous curved cutting edge or a serrated cutting edge. The surgical blade head is further characterized in that: the surgical blade head is an integral structure, and the surgical blade head is manufactured using a metal powder injection molding process. A microwave surgical blade, characterized in that the surgical blade head is mounted on the microwave surgical blade.

[0005] The surgical blade tip using the technical solution of this invention can achieve a closer fit between the two surfaces of the surgical blade tip and the tissue being cut during the surgical procedure. The surgeon can simultaneously observe the position of the two surfaces of the surgical blade tip relative to the tissue being cut, thereby improving the cutting accuracy and other technical effects. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0007] Figure 1 , Figure 2 This is a schematic diagram of the overall structure of a microwave surgical scalpel head using existing technology;

[0008] Figure 3 , Figure 4 , Figure 5 This is a three-dimensional schematic diagram of the surgical blade head in a specific embodiment of the present invention;

[0009] Figure 6 This is a cross-sectional view of the upward tilt height of the foremost edge of the surgical blade in a specific embodiment of the present invention;

[0010] Figure 7 This is a side view showing the height of the upward curve of the foremost edge of the scalpel tip in a specific embodiment of the present invention;

[0011] Figure 8 , Figure 10 This is a projection view of the surface of the surgical blade in a specific embodiment of the present invention;

[0012] Figure 9 This is a side sectional view of the height of the ridge peaks on the surface of the surgical blade tip in a specific embodiment of the present invention;

[0013] Figure 11 This is a projection of the surgical blade surface in another specific embodiment of the cutting edge shape of the present invention. Detailed Implementation

[0014] like Figure 3 , Figure 4 As shown, the surgical blade 2 of the present invention includes a cutting end having a first surface 201 and a second surface 202, and a coaxial cylindrical interface end 203 with a hole opened along the central axis. The coaxial cylindrical interface end 203 is connected to other microwave coaxial transmission components, and the inner conductor of the other microwave coaxial transmission components is inserted into the hole opened along the central axis of the coaxial cylindrical interface end 203. The cutting end, formed by the first surface 201 and the second surface 202, has an overall arc-shaped upward curve. The cutting end has a leading edge portion 204, which can be either a continuous curved cutting edge or a serrated cutting edge (e.g.,...). Figure 11 (The cutting edge shape of the blade shown).

[0015] The surgical blade 2 of the present invention, with the cross-section of the coaxial cylindrical interface end 203 as the observation plane, has a torsion angle 204 located at the foremost edge portion 204 of the cutting end, which, around the central axis of the coaxial cylindrical interface end 203, exists in a clockwise direction. The torsion angle ranges from 0 to 45 degrees, preferably 12 degrees (e.g., ...). Figure 5 (As shown). The foremost edge portion 204 of the cut end has an upward tilt of 0-3mm relative to the central axis of the coaxial cylindrical interface end 203 (e.g.). Figure 6 , Figure 7 (As shown). Both the first surface 201 and the second surface 202 are based on an arc-shaped curve, with a wave-shaped ridge at the center of the surface. The height of the ridge at the ridge position 205 relative to the corresponding arc-shaped curve base ranges from 0 to 2 mm (e.g., Figure 8 , Figure 9(As shown). The surgical blade 2 of the present invention has a maximum width of 2-5 mm (e.g., ...). Figure 8 As shown), the preferred width at its maximum is 4mm, and the maximum length of the surgical blade 2 is 20-25mm (as shown). Figure 10 As shown, the preferred length at the maximum point is 22.3 mm. The surgical blade 2 of this invention is an integral structure manufactured using a metal powder injection molding process. The surgical blade 2 of this invention can be installed as the blade of a microwave surgical scalpel.

[0016] By setting the clockwise twist angle of the foremost edge portion 204 of the cutting end, and the overall upward tilt of the cutting end and the convexity of the first surface 201 and the second surface 202 on the arc base, the first and second surfaces of the surgical blade of the present invention can fit more closely to the tissue being cut during the operation. Furthermore, the surgeon can simultaneously observe the position of the first and second surfaces of the surgical blade relative to the tissue being cut from any side of the surgical blade, greatly improving the cutting accuracy and surgical effect.

Claims

1. A surgical blade tip, comprising a cutting end and a coaxial cylindrical interface end, wherein the cutting end includes a first surface, a second surface, and a foremost edge portion; characterized in that: The cut ends formed by the first and second surfaces are generally arc-shaped and upturned.

2. The surgical blade as described in claim 1, characterized in that: Taking the cross-section of the coaxial cylindrical interface end as the observation plane, the foremost edge portion located at the cutting end has a torsion angle around the central axis of the coaxial cylindrical interface end in a clockwise direction, and the torsion angle range is 0-45 degrees.

3. The surgical blade as described in claim 2, characterized in that: The foremost edge of the cutting end is tilted upwards by 0-3mm relative to the central axis of the coaxial cylindrical interface end.

4. The surgical blade as described in claim 3, characterized in that: Both the first surface and the second surface are based on an arc-shaped curve, with a wave-shaped ridge at the center of the surface. The height of the ridge relative to the corresponding arc-shaped curve base is in the range of 0-2mm.

5. The surgical blade as described in claim 2, characterized in that: The twist angle is 12 degrees.

6. The surgical blade as described in claim 2, characterized in that: The maximum width of the surgical blade is 2-5mm, and the maximum length is 20-25mm.

7. The surgical blade as described in claim 6, characterized in that: The maximum width of the surgical blade is 4mm, and the maximum length is 22.3mm.

8. The surgical blade as described in any one of claims 1 to 7, characterized in that: The foremost edge portion of the cutting end can be either a continuous curved cutting edge or a serrated cutting edge.

9. The surgical blade as described in any one of claims 1 to 7, characterized in that: The surgical blade head is an integral structure and is manufactured using a metal powder injection molding process.

10. A microwave surgical scalpel, characterized in that, The microwave scalpel is equipped with a scalpel head as described in any one of claims 1 to 7.

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