A surgical instrument combination structure

Abstract

This invention discloses a surgical instrument connection structure, including a main instrument connection part and an insertion instrument connection part. The main instrument connection part has an instrument groove, and the vertical sidewall of the instrument groove has a strip-shaped protrusion aligned with the instrument insertion direction. The insertion instrument connection part includes a protrusion and a handle. The cross-section of the protrusion is approximately circular with a major axis and a minor axis. When the minor axis of the protrusion is aligned with the strip-shaped protrusion on the instrument groove, the insertion instrument connection part can move freely within the instrument groove along its axial direction. When the major axis of the protrusion is aligned with the strip-shaped protrusion on the instrument groove, the protrusion of the insertion instrument connection part and the strip-shaped protrusion press against each other, thus fixing the insertion instrument connection part and the main instrument connection part relatively. This invention has a simple structure, is easy to operate, easy to manufacture, inexpensive, and easier to popularize. Furthermore, the longitudinal relative position of the instrument connection can be adjusted arbitrarily within a certain range, adapting to surgical scenarios involving various simple combinations of instruments.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a surgical instrument combination structure. Background Technology

[0002] In current clinical surgeries, multiple surgical instruments are used, requiring the combination of two or more instruments during the procedure. This is especially true in minimally invasive surgeries performed within the endoscopic working channel, where different instruments often need to be combined with the main endoscopic component. Currently, most of these instrument combinations are achieved using a screw-lock mechanism at specific instrument fixation points. This structure is complex, inconvenient to operate, and suffers from drawbacks such as a single fixation position, inability to easily adjust the longitudinal position of the combined instruments, and a single interface that cannot accommodate convenient combination of multiple instruments. Therefore, further improvements and enhancements are needed to address the problems existing in the current technology. Summary of the Invention

[0003] In view of the deficiencies of the existing background technology, the purpose of the present invention is to provide a surgical instrument combination structure to overcome the shortcomings of the existing technology, achieve a simple structure, convenient operation, and allow for arbitrary adjustment of the longitudinal relative position of the combined instruments within a certain range, and also provide multiple methods and multiple instruments for convenient combination.

[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: a surgical instrument connection structure, comprising a main instrument connection portion and an insertion instrument connection portion, wherein the main instrument connection portion is provided with an instrument groove; the insertion instrument connection portion includes a protrusion and a handle, the cross-section of the protrusion being approximately circular with a major axis and a minor axis. When the minor axis of the protrusion is opposite to the vertical sidewall of the instrument groove, the insertion instrument connection portion can move freely within the instrument groove along its axial direction; when the major axis of the protrusion is opposite to the vertical sidewall of the instrument groove, the protrusion of the insertion instrument connection portion and the vertical sidewall of the instrument groove are pressed against each other, thereby fixing the insertion instrument connection portion and the main instrument connection portion relatively.

[0005] Furthermore, the inner side of the vertical sidewall of the instrument slot is provided with a strip-shaped protrusion that is aligned with the instrument insertion direction.

[0006] Furthermore, the strip-shaped protrusion is rigidly disposed on the upper inner side of the vertical sidewall of the instrument groove, and is adapted to the long diameter of the protrusion of the insertion instrument joint in the locked state.

[0007] Preferably, the strip-shaped protrusion is smoothly connected to the inner sidewall of the vertical sidewall.

[0008] Furthermore, the major axis and minor axis of the protrusion are perpendicular to each other in the cross-section of the protrusion.

[0009] Furthermore, when the short diameter of the protrusion is opposite to the strip-shaped protrusion on the instrument groove, the insertion instrument joint can move freely in the instrument groove along its axial direction; when the long diameter of the protrusion is opposite to the strip-shaped protrusion on the instrument groove, the protrusion of the insertion instrument joint and the strip-shaped protrusion press against each other, so that the insertion instrument joint and the main instrument joint are relatively fixed.

[0010] Preferably, the handle is located on the upper surface of the protrusion in the direction of its minor diameter.

[0011] Preferably, in the long axis direction of the protrusion in the insertion device joint, the outer end edge is provided with a smooth protrusion.

[0012] Preferably, the corresponding insertion tube is fixedly installed at the center of the front side of the protrusion through the base, and the insertion tube, the base and the protrusion are integrally formed.

[0013] Preferably, the protrusion is provided with an instrument mounting hole and an extrusion gap passing through the instrument mounting hole. The extrusion gap is located in the short diameter direction of the protrusion, with one end open and the other end provided with extrusion holes of equal length in the same direction.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention has a simple structure, is easy to operate, easy to manufacture, and inexpensive, making it easier to popularize; at the same time, the longitudinal relative position of the instruments can be adjusted at will within a certain range, which can adapt to surgical scenarios with simple combination of various methods and instruments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of one implementation of the present invention;

[0016] Figure 2 yes Figure 1 Northeast isometric view of the central structure;

[0017] Figure 3 This is a schematic diagram of the structure of the main instrument joint in this invention;

[0018] Figure 4 yes Figure 3 Right view of the middle structure;

[0019] Figure 5 This is a schematic diagram of the overall structure and its front view of the first implementation method of the insertion device joint in this invention;

[0020] Figure 6 This is a schematic diagram of the overall structure and its front view of the second implementation method of the insertion device joint in this invention;

[0021] In the diagram: 0. Handheld part; 1. Main instrument connection part; 2. Insertion instrument connection part.

[0022] 10. Instrument slot; 11. First strip-shaped protrusion; 12. Second strip-shaped protrusion; 20. Insertion cannula; 21. Protrusion; 22. Twist handle; 23. Long diameter; 24. Short diameter; 25. Second protrusion; 26. First protrusion; 27. Instrument mounting hole; 28. Extrusion gap; 29. ​​Extrusion variable hole. Detailed Implementation

[0023] It should be noted that in the description of this invention, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are only used to facilitate the description of the structural relationship between the components of this invention and do not specifically mean that any component in this invention must have a specific orientation, be constructed and operated in a specific orientation, or be construed as a limitation of this invention.

[0024] Furthermore, the use of terms such as "first" and "second" in the invention is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1,

[0028] like Figure 1 and Figure 2 As shown, a surgical instrument assembly structure includes a main instrument assembly 1 and an insertion instrument assembly 2. The main instrument assembly 1 is located at the tail end of the handle portion 0 in the main body of the medical device, and has an instrument groove 10 thereon for assembly. Figure 3 and Figure 4 As shown, each of the two vertical sidewalls of the instrument slot 10 has a strip-shaped protrusion aligned with the instrument insertion direction. These protrusions are rigidly positioned on the upper inner side of the vertical sidewalls, smoothly transitioning to and connecting with the inner sidewalls of the vertical sidewalls. The protrusion directions of the two strip-shaped protrusions are opposite. For example... Figure 5As shown, the insertion instrument coupling 2 is integrally formed and includes a protrusion 21 and a handle 22 adapted to the instrument groove 10. The cross-section of the protrusion 21 is approximately circular with a major axis 23 and a minor axis 24, wherein the major axis 23 and the minor axis 24 are perpendicular to each other. In the direction of the major axis 23 of the protrusion 21, a smooth second protrusion 25 and a first protrusion 26 are respectively provided at its left and right outer ends. The horizontal height of the first protrusion 26 is lower than that of the second protrusion 25. The handle 22 is fixedly disposed on the upper surface of the protrusion 21 in the direction of the minor axis 24, and extends to the left in the horizontal cross-sectional direction of the upper surface.

[0029] A base is fixedly provided at the center of the front side of the protrusion 21, and a coaxial insertion tube 20 is fixedly installed at the center of the base, which is integrally formed with the protrusion 21.

[0030] In use, the insertion device connector 2 is inserted into the main device connector 1 along the central axis of the device groove 10. At this time, the short diameter 24 of the protrusion 21 is opposite to the strip-shaped protrusion on the vertical side wall of the device groove 10. Since the width of the short diameter 24 is smaller than the distance between the first strip-shaped protrusion 11 and the second strip-shaped protrusion 12 on the device groove 10, the handle 22 in the insertion device connector 2 can be held and moved freely along its axial direction in the device groove 10 to adjust the connection position of the two according to the required extension length of the cannula 20. Then, by pressing down the handle 22, it is brought into contact with the upper end face of the vertical side wall of the device groove 10, and the cannula is inserted. The instrument coupling 2 and the main instrument coupling 1 are pressed together to achieve a locked state. At this time, the long diameter 23 of the protrusion 21 is opposite to the strip-shaped protrusion on the vertical side wall of the instrument groove 10. The second protrusion 25 on the protrusion 21 clamps the lower side of the first strip-shaped protrusion 11. At the same time, the first protrusion 26 on the protrusion 21 is limited and compressed by the second strip-shaped protrusion 12. While preventing the protrusion 21 from springing up under force, it works together with the first strip-shaped protrusion 11 to compress and fix the protrusion 21, so that the relative position of the insertion instrument coupling 2 and the main instrument coupling 1 is fixed during the surgical operation. After use, lifting the handle 22 separates the insertion instrument coupling 2 and the main instrument coupling 1 for easy disassembly and cleaning.

[0031] Example 2,

[0032] A surgical instrument assembly structure includes a main instrument assembly 1 and an insertion instrument assembly 2. The main instrument assembly 1 is located at the tail end of the handle portion 0 of the main body of the medical instrument, and has an instrument groove 10. On each of the two vertical sidewalls of the instrument groove 10, there are strip-shaped protrusions aligned with the instrument insertion direction, rigidly positioned on the upper inner side of the vertical sidewalls, smoothly transitioning and connecting with the inner sidewalls of the vertical sidewalls. The protrusion directions of the two strip-shaped protrusions are opposite. Figure 6As shown, the insertion device joint 2 is integrally formed and includes a protrusion 21 and a handle 22 adapted to the device groove 10. The cross-section of the protrusion 21 is a near-circular shape with a major diameter 23 and a minor diameter 24, wherein the major diameter 23 and the minor diameter 24 are perpendicular to each other. In the direction of the major diameter 23 of the protrusion 21, the left and right outer ends are respectively provided with a smooth first protrusion 26 and a second protrusion 25. The horizontal height of the first protrusion 26 is lower than that of the second protrusion 25. A device mounting hole 27 penetrating from front to back is provided on the transverse central axis of the protrusion 21, and its inner diameter is slightly larger than the outer diameter of the insertion tube. In the direction of the minor diameter 24 of the protrusion 21, a vertical compression gap 28 is provided passing through the device mounting hole 27. The upper end of the compression gap 28 is open, and the lower end is connected to a compression variable hole 29 of equal length. The compression variable hole 29 is parallel to the device mounting hole 27 and has the same direction. The handle 22 is fixedly disposed on the upper surface of the protrusion 21 in the direction of the short diameter 24, and extends to the right in the horizontal sectional direction of the upper surface.

[0033] In use, first pass the required cannula through the instrument mounting hole 27, then place the insertion instrument coupling 2 into the instrument slot 10. The operation process is the same as in Embodiment 1. However, due to the presence of the compression gap 28 on the protrusion 21, the length of the cannula can be adjusted either by directly inserting or removing the cannula, or by inserting the insertion instrument coupling 2. After adjusting the position, press down the torque handle 22 to compress and engage the insertion instrument coupling 2 with the main instrument coupling 1, achieving a locked state. At this time, The long diameter 23 of the protrusion 21 is opposite to the strip-shaped protrusion on the vertical side wall of the instrument groove 10. The second protrusion 25 on the protrusion 21 clamps the lower side of the first strip-shaped protrusion 11. At the same time, the first protrusion 26 on the protrusion 21 is limited and squeezed by the second strip-shaped protrusion 12. While preventing the protrusion 21 from springing up under force, it works together with the first strip-shaped protrusion 11 to compress the compression gap 28. The inner diameter of the instrument mounting hole 27 then becomes smaller, clamping the insertion tube and completing the compression and fixation of the insertion instrument joint 2. After use, the handle 22 is lifted again to separate the insertion instrument joint 2 from the main instrument joint 1.

[0034] Finally, it should be noted that the above description of the embodiments is only used to illustrate the technical solution of the present invention and is not intended to limit the present invention. The present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A surgical instrument combination structure, characterized in that: The device includes a main instrument joint and an insertion instrument joint. The main instrument joint has an instrument groove, and the inner side of the vertical sidewall of the instrument groove has a strip-shaped protrusion aligned with the insertion direction of the instrument. The strip-shaped protrusion is rigidly set on the upper inner side of the vertical sidewall of the instrument groove and is adapted to the long diameter of the protrusion of the insertion instrument joint in the locked state. The strip-shaped protrusion is smoothly connected to the inner sidewall of the vertical sidewall. The insertion instrument joint includes a protrusion and a handle. The cross-section of the protrusion is approximately circular with a long diameter and a short diameter. Along the long diameter of the protrusion, its left and right outer ends are respectively provided with a smooth second protrusion and a first protrusion. The horizontal height of the first protrusion is lower than that of the second protrusion. When the short diameter of the protrusion is opposite to the vertical sidewall of the instrument groove, the insertion instrument joint can move freely in the instrument groove along its axial direction; when the long diameter of the protrusion is opposite to the vertical sidewall of the instrument groove, the protrusion of the insertion instrument joint and the vertical sidewall are pressed against each other, so that the insertion instrument joint and the main instrument joint are relatively fixed.

2. The surgical instrument combination structure according to claim 1, characterized in that: The major axis and minor axis of the protrusion are perpendicular to each other in the cross-section.

3. The surgical instrument combination structure according to claim 1, characterized in that: When the short diameter of the protrusion is opposite to the strip-shaped protrusion on the instrument groove, the insertion instrument joint can move freely in the instrument groove along its axial direction; when the long diameter of the protrusion is opposite to the strip-shaped protrusion on the instrument groove, the protrusion of the insertion instrument joint and the strip-shaped protrusion press against each other, so that the insertion instrument joint and the main instrument joint are relatively fixed.

4. The surgical instrument combination structure according to claim 1, characterized in that: The torque handle is located on the upper surface of the protrusion in the direction of its short diameter.

5. The surgical instrument combination structure according to claim 1, characterized in that: The corresponding insertion tube is fixedly installed at the center of the front side of the protrusion through the base, and the insertion tube, the base and the protrusion are integrally formed.

6. The surgical instrument combination structure according to claim 1, characterized in that: The protrusion is provided with an instrument mounting hole and an extrusion gap passing through the instrument mounting hole. The extrusion gap is located in the short diameter direction of the protrusion, with one end open and the other end provided with an extrusion hole of equal length in the same direction.

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