Surgical instrument and surgical system

Abstract

The application relates to a surgical instrument and a surgical system. The surgical instrument comprises a base, a connecting structure, an instrument structure, a sealing sleeve, a conductive element and an electrical connector. The connecting structure is connected to the base and is provided with a connecting groove; the instrument structure is arranged on the side of the connecting structure away from the base, and at least part of the structure is located in the connecting groove; the sealing sleeve is sleeved on the circumferential side of the instrument structure and the connecting structure to seal the instrument structure and the connecting structure from each other; the conductive element is at least partially exposed on the side of the base away from the connecting structure; and the electrical connector is arranged in the connecting groove and electrically connects the conductive element and the instrument structure. The surgical instrument has good sealing performance and high electrical connection stability between the conductive element and the instrument structure.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a surgical instrument and surgical system. Background Technology

[0002] In surgical procedures, monopolar instruments such as monopolar electrosurgical units, monopolar needles, or monopolar hooks are commonly used to perform ablation, hemostasis, tissue retraction, or separation. The use of monopolar instruments greatly facilitates surgical procedures. Monopolar instruments typically require electrical connections, such as wires, to power the electrosurgical unit, needle, or spatula located at its end. However, traditional monopolar instruments have poor sealing performance, making them susceptible to liquid infiltration, which can lead to short circuits or electrical breakdowns. Summary of the Invention

[0003] Therefore, it is necessary to provide a surgical instrument and surgical system to address the problem of poor sealing performance of monopolar instruments.

[0004] A surgical instrument, comprising:

[0005] Base;

[0006] A connecting structure is provided, which is connected to the base and has a connecting groove.

[0007] The instrument structure is located on the side of the connecting structure opposite to the base, and at least a portion of the structure is located within the connecting groove.

[0008] A sealing sleeve is fitted around the periphery of the instrument structure and the connecting structure to seal the instrument structure and the connecting structure together.

[0009] A conductive element, at least a portion of which is exposed on the side of the base opposite to the connecting structure; and

[0010] An electrical connector is disposed within the connecting groove and electrically connects the instrument structure to the conductive element.

[0011] In one embodiment, the surgical instrument further includes a conductive structure disposed within the base and partially exposed in the connecting groove. The electrical connector and the conductive element are located on opposite sides of the conductive structure and are both electrically connected to the conductive structure.

[0012] In one embodiment, the surgical instrument further includes a rotating shaft connected to the base and used to drive the base to rotate. The conductive element is disposed inside the rotating shaft and is rotatably connected to the conductive structure.

[0013] In one embodiment, the electrical connector includes a compression spring and an electrode plate, one end of the compression spring abutting against the conductive structure and the other end connected to the electrode plate, the side of the electrode plate facing away from the compression spring abutting against the instrument structure.

[0014] In one embodiment, the electrical connector includes a spring with elastic deformation capability, the spring being disposed on the inner wall of the connection structure and electrically connected to the conductive element, the instrument structure portion being inserted into the connection groove, and the side wall of the instrument structure abutting against the spring.

[0015] In one embodiment, the outer wall of the connecting structure is provided with a first locking boss, and the inner wall of the sealing sleeve is provided with a first mating boss, the first locking boss abutting against the side of the first mating boss facing away from the base.

[0016] In one embodiment, the connection structure has elastic deformation capability, and the first mating boss is generally annular.

[0017] In one embodiment, the outer wall of the connecting structure is provided with a second locking boss, the inner wall of the sealing sleeve is provided with a second mating boss, the second mating boss forms a locking groove, the second locking boss is embedded in the locking groove, and the second locking boss abuts against the second mating boss on both sides of the connecting structure in the circumferential direction.

[0018] In one embodiment, the surgical instrument further includes a protective sleeve that covers the base and a portion of the sealing sleeve, with at least a portion of the conductive element located within the protective sleeve;

[0019] The outer wall of the sealing sleeve is provided with a third locking boss, and the inner wall of the protective sleeve is provided with a third mating boss. The third locking boss abuts against the side of the third mating boss facing the base.

[0020] In one embodiment, the third locking boss is generally annular in shape, and the outer peripheral surface of the third locking boss is inclined to the axial direction of the connecting structure.

[0021] In one embodiment, the surgical instrument further includes a retainer connected to the base on the side facing the sealing sleeve and forming a snap-fit ​​space with the base that has a one-sided opening. The connecting structure is disposed within the snap-fit ​​space, and the retainer covers at least a portion of the sealing sleeve.

[0022] In one embodiment, the outer wall of the sealing sleeve is provided with a fourth locking boss, the inner wall of the sleeve is provided with a fourth mating boss, the fourth mating boss is provided with a locking groove facing the opening of the base, and the fourth locking boss is embedded in the locking groove.

[0023] In one embodiment, the inner wall of the sleeve is provided with a plurality of fourth mating protrusions, which are arranged sequentially at intervals along the circumference of the sleeve. The fourth mating protrusions are spaced apart from the base, and a disengagement groove is formed between two adjacent fourth mating protrusions to allow the fourth locking protrusion to disengage from the sleeve.

[0024] In one embodiment, the portion of the fourth mating boss corresponding to the opening of the locking groove has a first guide surface facing the base, and the fourth locking boss has a second guide surface facing away from the base. Both the first guide surface and the second guide surface are inclined to the axial direction of the connecting structure.

[0025] A surgical system includes an instrument box and surgical instruments as described in any of the above embodiments, the surgical instruments being disposed in the instrument box.

[0026] The aforementioned surgical instruments include an electrical connector that establishes an electrical connection between the instrument structure and the conductive elements, housed within a connection groove. A sealing sleeve is fitted onto the connection structure to seal the connection groove. The cooperation between the sealing sleeve and the connection structure enhances the sealing performance of the connection groove space of the surgical instruments, thereby improving the stability of the electrical connection between the conductive elements and the instrument structure and reducing the risk of short circuits or electrical breakdowns caused by liquid or moisture seeping into the connection groove. Attached Figure Description

[0027] Figure 1 These are schematic diagrams of the surgical instruments in some embodiments;

[0028] Figure 2 This is a cross-sectional schematic diagram of the surgical instruments in some embodiments;

[0029] Figure 3 for Figure 1 A cross-sectional schematic diagram of some components of the surgical instrument shown;

[0030] Figure 4 This is an exploded schematic diagram of some components of the surgical instrument in some embodiments;

[0031] Figure 5 This is a schematic diagram of the sealing sleeve in some embodiments;

[0032] Figure 6 These are schematic diagrams of the instrument structure and sealing sleeve in some embodiments;

[0033] Figure 7 This is a cross-sectional schematic diagram of the protective sleeve in some embodiments;

[0034] Figure 8 This is a cross-sectional schematic diagram of the surgical instruments in some other embodiments;

[0035] Figure 9 This is a schematic diagram of the surgical instruments in some of the embodiments;

[0036] Figure 10 for Figure 9 A cross-sectional schematic diagram showing the sealing sleeve of the surgical instrument detaching from the ferrule.

[0037] Figure 11 for Figure 9 A schematic diagram of the sealing sleeve of the surgical instrument shown;

[0038] Figure 12 for Figure 9 A cross-sectional schematic diagram of some components of the surgical instrument shown;

[0039] Figure 13 This is a schematic diagram of the surgical system in some embodiments.

[0040] Figure label:

[0041] 10. Surgical instruments; 11. Conductive components; 12. Instrument structure; 121. Electrode; 13. Base; 14. Connecting structure; 141. First locking boss; 142. Second locking boss; 143. Connecting groove; 15. Sealing sleeve; 151. First mating boss; 152. Second mating boss; 1521. Locking groove; 153. Third locking boss; 154. Fourth locking boss; 1541. Second guide surface; 16. Electrical connector; 161. Compression spring; 162. Electrode plate; 163. Spring; 17. Conductive structure; 18. Protective sleeve; 181. Third mating boss; 19. Rotating shaft; 21. Sleeve; 211. Locking space; 212. Fourth mating boss; 2121. Locking groove; 2122. Disengagement groove; 2123. First guide surface; 30. Surgical system; 31. Instrument box. Detailed Implementation

[0042] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0048] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a schematic diagram of the structure of the surgical instrument 10 in some embodiments. Figure 2 This is a cross-sectional schematic diagram of the surgical instrument 10 in some embodiments. Figure 3 This is a cross-sectional schematic diagram of the 10 components of the surgical instrument in some embodiments. Figure 4 This is an exploded view of some components of the surgical instrument 10 in some embodiments. The surgical instrument 10 provided in this application includes, but is not limited to, monopolar instruments, such as monopolar electrosurgical units, monopolar needles, etc. The surgical instrument 10 is provided with a conductive element 11 and an instrument structure 12 located at the end. The conductive element 11 can be any suitable conductive element such as a wire. The conductive element 11 is used to connect with the instrument box 31 (see...). Figure 13 The device structure 12 can be powered by any suitable power supply connection. The device structure 12 includes, but is not limited to, an electrocautery knife, an electrocautery needle, an electrocautery hook, an electrocautery shovel, etc. The device structure 12 can be used for operations such as ablation and hemostasis, pushing or separating tissues.

[0049] Furthermore, in some embodiments, the surgical instrument 10 further includes a base 13, a connecting structure 14, and a sealing sleeve 15. The connecting structure 14 is connected to the base 13 and has a connecting groove 143. The sealing sleeve 15 is fitted onto the connecting structure 14, and the instrument structure 12 is connected to the sealing sleeve 15 and partially inserted into the connecting groove 143. The connecting groove 143 can be a groove structure formed by the opening of the connecting structure 14 facing the instrument structure 12. The sealing sleeve 15 is fitted onto the connecting structure 14 to seal the connecting groove 143. This can be understood as the sealing sleeve 15 sealing the opening of the connecting groove 143 facing the instrument structure 12, or the instrument structure 12 being inserted into the connecting groove 143 to seal the opening of the connecting groove 143. Alternatively, the sealing sleeve 15 has a hole structure communicating with the outside, and the instrument structure 12 is located in the hole structure of the sealing sleeve 15 and is sealed and connected to the sealing sleeve 15. The sealing sleeve 15 and the instrument structure 12 together seal the opening of the connecting groove 143 facing the instrument structure 12. At least a portion of the conductive element 11 is disposed on the side of the base 13 facing away from the connecting structure 14. The surgical instrument 10 may also include an electrical connector 16, which is disposed within the connecting groove 143 and electrically connected to the instrument structure 12 and the conductive element 11, so that the conductive element 11 can supply power to the instrument structure 12. The conductive element 11 may indirectly establish an electrical connection with the electrical connector 16 through other elements disposed on the base 13, or the conductive element 11 may partially pass through the base 13 and directly establish an electrical connection with the electrical connector 16.

[0050] The surgical instrument 10 described above has an electrical connector 16 that establishes an electrical connection between the instrument structure 12 and the conductive element 11 housed in a connection groove 143. A sealing sleeve 15 is fitted onto the connection structure 14 to seal the connection groove 143. The cooperation between the sealing sleeve 15 and the connection structure 14 can improve the sealing performance of the connection groove 143 space of the surgical instrument 10, thereby improving the stability of the electrical connection between the conductive element 11 and the instrument structure 12 and reducing the risk of short circuits or electrical breakdowns caused by liquid or moisture seeping into the connection groove 143.

[0051] In some embodiments, the end face of the sealing sleeve 15 near the base 13 abuts against the base 13, which reduces the risk of liquid or moisture seeping into the sealing sleeve 15 from between the sealing sleeve 15 and the base 13, thereby improving the sealing performance of the surgical instrument 10. Further, in some embodiments, both the sealing sleeve 15 and the connecting structure 14 can be generally hollow cylindrical, and the end face of the sealing sleeve 15 can be generally annular. The sealing sleeve 15 is disposed circumferentially around the connecting structure 14, and the end face of the sealing sleeve 15 surrounds the connecting structure 14 and abuts against the base 13. Thus, the sealing sleeve 15 can seal the connecting structure 14 at various positions circumferentially, which is beneficial for improving the sealing performance of the surgical instrument 10.

[0052] In some embodiments, the surgical instrument 10 further includes a conductive structure 17, which is disposed within the base 13 and partially exposed in the connecting groove 143. For example, the base 13 also has a hollow space communicating with the connecting groove 143, and the conductive structure 17 is disposed within the hollow space of the base 13. The conductive structure 17 blocks the side of the connecting groove 143 away from the instrument structure 12 on the surface facing the instrument structure 12. The electrical connector 16 is electrically connected to the conductive structure 17 within the connecting groove 143, and the conductive element 11 is electrically connected to the conductive structure 17 on the side of the conductive structure 17 opposite to the electrical connector 16. The conductive element 11 is indirectly electrically connected to the electrical connector 16 through the conductive structure 17. By establishing an electrical connection between the electrical connector 16 and the conductive element 11 through the conductive structure 17 disposed within the base 13, and using the base 13 as a carrier, the connection between the conductive structure 17 and the electrical connector 16 and the conductive element 11 becomes more stable and reliable, thereby improving the reliability of the electrical connection between the electrical connector 16 and the conductive element 11.

[0053] In some embodiments, the connection structure 14 and the base 13 are integral structures, for example, made by integral injection molding, which helps to improve the reliability and precision of the structure, thereby helping to improve the stability of the electrical connection between the electrical connector 16, the conductive structure 17 and the conductive element 11.

[0054] In some embodiments, the sealing sleeve 15 is detachably connected to the connecting structure 14 and the base 13. In other words, the sealing sleeve 15 and the instrument structure 12 can be detached from or installed on the connecting structure 14 and the base 13. Therefore, after performing ablation hemostasis, tissue dissection, or separation using the surgical instrument 10, a new instrument structure 12 can be replaced by removing the sealing sleeve 15 from the connecting structure 14 and the base 13. This reduces the risk of the instrument structure 12 adhering to tissue or being corroded, leading to a cumbersome cleaning process, making the use of the surgical instrument 10 more convenient and improving its safety.

[0055] Combination Figure 4 , Figure 5 and Figure 6As shown, in some embodiments, the outer wall of the connecting structure 14 has a first locking boss 141 protruding, and the inner wall of the sealing sleeve 15 has a first mating boss 151 protruding. The first locking boss 141 abuts against the side of the first mating boss 151 facing away from the base 13, so that the sealing sleeve 15 can be fitted onto the connecting structure 14 and fixed to the connecting structure 14. Further, in some embodiments, the sealing sleeve 15 has elastic deformation capability, and the first mating boss 151 is generally annular in shape, surrounding the inner wall of the sealing sleeve 15. Thus, when the first locking boss 141 abuts against the side of the first mating boss 151 facing away from the base 13, the first mating boss 151 can limit the first locking boss 141 from various positions in the circumferential direction of the connecting structure 14, thereby improving the stability of the connection between the sealing sleeve 15 and the connecting structure 14, and thus helping to improve the sealing performance of the surgical instrument 10.

[0056] It should be noted that, in this embodiment, since the sealing sleeve 15 has elastic deformation capability, when it is necessary to remove the sealing sleeve 15 from the connecting structure 14 or to put the sealing sleeve 15 onto the connecting structure 14, the sealing sleeve 15 can be pressed to deform it, thereby causing the first mating boss 151 to deform and form the space for the first locking boss 141 to enter and exit the first mating boss 151. For example, by pressing the sealing sleeve 15, the first mating boss 151 is deformed from an annular shape to an approximately elliptical shape. Thus, when the position of the first locking boss 141 corresponds to the major axis direction of the elliptical shape formed by the first mating boss 151, the first locking boss 141 can enter the sealing sleeve 15 or detach from the sealing sleeve 15 through the first mating boss 151, and the connecting structure 14 can be inserted into or detached from the sealing sleeve 15, thereby realizing the removal of the sealing sleeve 15 from the connecting structure 14 or the putting of the sealing sleeve 15 onto the connecting structure 14.

[0057] In some embodiments, the outer wall of the connecting structure 14 is provided with a plurality of first locking protrusions 141 spaced apart circumferentially. Each of the first locking protrusions 141 can abut against a first mating protrusion 151, allowing the first mating protrusion 151 to limit the first locking protrusions 141 from multiple circumferential positions, thereby improving the reliability of the connection between the connecting structure 14 and the sealing sleeve 15. Further, in some embodiments, the outer wall of the connecting structure 14 is provided with two first locking protrusions 141, which are arranged opposite to each other. Therefore, when it is necessary to remove the sealing sleeve 15 from the connecting structure 14 or to put the sealing sleeve 15 onto the connecting structure 14, pressing the sealing sleeve 15 causes the first mating boss 151 to deform into an approximately elliptical shape. The line connecting the geometric centers of the two first locking bosses 141 can correspond to the major axis of the ellipse formed by the first mating bosses 151. This not only improves the reliability of the connection between the connecting structure 14 and the sealing sleeve 15, but also allows the two first locking bosses 141 to pass smoothly through the first mating bosses 151, making it easier to remove the sealing sleeve 15 from the connecting structure 14 or to put the sealing sleeve 15 onto the connecting structure 14.

[0058] refer to Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the outer wall of the connecting structure 14 is provided with a second locking boss 142, and the inner wall of the sealing sleeve 15 is provided with a second mating boss 152. The second mating boss 152 forms a locking groove 1521. When the sealing sleeve 15 is fitted onto the connecting structure 14, the second locking boss 142 is embedded in the locking groove 1521. The second locking boss 142 abuts against the second mating boss 152 on both sides of the connecting structure 14 in the circumferential direction. Through the limiting effect of the second mating boss 152 on the second locking boss 142 in the circumferential direction of the connecting structure 14, the sealing sleeve 15 can be rotated and limited in the circumferential direction of the connecting structure 14, so that the sealing sleeve 15 is not easy to rotate relative to the connecting structure 14 in the circumferential direction when it is fitted onto the connecting structure 14, which is beneficial to improving the structural and functional stability of the surgical instrument 10. The provision of the first locking boss 141 and the second locking boss 142 can improve the reliability of the connection between the sealing sleeve 15 and the connecting structure 14, thereby also helping to improve the stability of the electrical connection between the conductive element 11, the electrical connector 16 and the instrument structure 12.

[0059] The number and formation of the locking grooves 1521 are not limited, as long as the second mating boss 152 can limit the second locking boss 142 in the circumferential direction when the second locking boss 142 is inserted into the locking groove 1521. In some embodiments, the inner wall of the sealing sleeve 15 is provided with two second mating bosses 152 that are spaced apart from each other in the circumferential direction of the connecting structure 14, and the two gaps between the two second mating bosses 152 form two locking grooves 1521. The outer wall of the connecting structure 14 is provided with two second locking bosses 142 that are spaced apart in the circumferential direction of the connecting structure 14 and correspond to the positions of the two locking grooves 1521 respectively. The two second locking bosses 142 can be inserted into the two locking grooves 1521 respectively. Providing two locking grooves 1521 can improve the reliability of rotational limiting between the connecting structure 14 and the sealing sleeve 15. In some embodiments, the two second locking bosses 142 are arranged opposite to each other in the circumferential direction of the connecting structure 14, and the two locking grooves 1521 are arranged opposite to each other in the circumferential direction of the connecting structure 14. In other words, the two locking bosses are evenly distributed in the circumferential direction of the connecting structure 14, which helps to improve the reliability of rotational limiting between the connecting structure 14 and the sealing sleeve 15. Of course, in other embodiments, the locking grooves 1521 can also be groove structures opened in the second mating bosses 152 themselves.

[0060] In some embodiments, the first locking protrusion 141 and the second locking protrusion 142 are spaced apart along the axial direction of the connecting structure 14, and are sequentially arranged along the axial direction of the connecting structure 14 from the instrument structure 12 to the base. Along the axial direction of the connecting structure 14, the position of the first mating protrusion 151 corresponds to the position of the first locking protrusion 141, and the position of the second mating protrusion 152 corresponds to the position of the second locking protrusion 142. Thus, during the process of fitting the sealing sleeve 15 onto the connecting structure 14, the first locking protrusion 141 first passes through and abuts against the first mating protrusion 151, and then the sealing sleeve 15 is rotated circumferentially along the connecting structure 14 to allow the second locking protrusion 142 to embed into the locking groove 1521. The limiting effects of the first locking protrusion 141 and the second locking protrusion 142 do not interfere with each other, which helps improve the reliability of the surgical instrument 10 structure.

[0061] It is understandable that during the process of fitting the sealing sleeve 15 onto the connecting structure 14, the second locking protrusion 142 can correspond to the position of the locking groove 1521 in the circumferential direction of the connecting structure 14. Therefore, when the connecting structure 14 is inserted into the sealing sleeve 15, the second locking protrusion 142 is immediately embedded in the locking groove 1521 without needing to rotate the sealing sleeve 15. Alternatively, the position of the second locking protrusion 142 in the circumferential direction of the connecting structure 14 may not correspond to the locking groove 1521. In this case, after the connecting structure 14 is inserted into the sealing sleeve 15, the second locking protrusion 142 can be embedded in the locking groove 1521 by rotating the sealing sleeve 15 in the circumferential direction of the connecting structure 14. Because the sealing sleeve 15 has elastic deformation capability, when the connecting structure 14 is inserted into the sealing sleeve 15 and the second locking boss 142 is not embedded in the locking groove 1521, the second locking boss 142 squeezes the sealing sleeve 15, causing the sealing sleeve 15 to deform. When the sealing sleeve 15 rotates to the point where the second locking boss 142 is embedded in the locking groove 1521, the sealing sleeve 15 returns to its original state.

[0062] In some embodiments, the sealing sleeve 15 is made of, but is not limited to, any suitable material with elastic deformation capabilities such as polyetherimide (PEI) or silicone. The base 13 and the connecting structure 14 are made of, but are not limited to, any suitable material with sufficient hardness and good insulation properties such as polyphenylene sulfone resin (PPSU), which can improve the structural reliability of the surgical instrument 10 and provide good insulation for the electrical connector 16 and the conductive structure 17, thereby improving the electrical safety performance of the surgical instrument 10. In some embodiments, the instrument structure 12 and the sealing sleeve 15, as well as the conductive structure 17 and the base 13, can be interconnected by a co-injection molding process.

[0063] It should be noted that, in this application, the description of the inner wall of a hollow structure can be understood as the inner surface of the hollow structure that encloses and forms a hollow space. For example, the inner wall surface of the sealing sleeve 15 can be understood as the surface of the sealing sleeve 15 that encloses and forms a space for the insertion of the connecting structure 14. The description of the outer wall of a hollow structure can be understood as the surface of the hollow structure opposite to the inner wall. For example, the outer wall of the connecting structure 14 can be understood as the surface of the connecting structure 14 facing away from the connecting groove 143. In this application, the connecting structure 14 can be generally hollow cylindrical in shape, the axial direction of the connecting structure 14 can correspond to the line connecting the geometric center of the instrument structure 12 and the geometric center of the base 13, and the circumferential direction of the connecting structure 14 can be the extension direction of the outer wall of the connecting structure 14.

[0064] Please see again. Figure 1 , Figure 2 and Figure 7In some embodiments, the surgical instrument 10 may further include a protective sleeve 18, which wraps around the outside of the base 13 and covers at least a portion of the sealing sleeve 15. At least a portion of the conductive element 11 is located within the protective sleeve 18. The protective sleeve 18 provides good insulation and protection for structures such as the sealing sleeve 15, the connecting structure 14, the base 13, and the conductive element 11. At the same time, the protective sleeve 18 covers the junction between the sealing sleeve 15 and the base 13, which can provide a seal between the sealing sleeve 15 and the base 13. Combined with the sealing effect of the sealing sleeve 15 on the connecting structure 14, the sealing performance of the surgical instrument 10 can be improved.

[0065] In some embodiments, the outer wall of the sealing sleeve 15 is provided with a third locking boss 153, and the inner wall of the protective sleeve 18 is provided with a third mating boss 181. When the protective sleeve 18 is wrapped around the outer side of the sealing sleeve 15, the third locking boss 153 abuts against the side of the third mating boss 181 facing the base 13. The arrangement of the third locking boss 153 and the third mating boss 181 can improve the connection reliability between the protective sleeve 18 and the sealing sleeve 15, and also improve the sealing performance between the protective sleeve 18 and the sealing sleeve 15. Further, in some embodiments, the third locking boss 153 and the third mating boss 181 are both generally annular and are arranged around the outer wall of the sealing sleeve 15, which can not only improve the connection reliability between the protective sleeve 18 and the sealing sleeve 15, but also act as a sealing ring between the protective sleeve 18 and the sealing sleeve 15, thereby further improving the sealing performance of the surgical instrument 10.

[0066] Furthermore, in some embodiments, the outer peripheral surface of the third locking protrusion 153 is inclined to the axial direction of the connecting structure 14. For example, in the direction from the instrument structure 12 to the base 13 along the axial direction of the connecting structure 14, the vertical distance between the outer peripheral surface of the third locking protrusion 153 and the connecting structure 14 gradually decreases. Therefore, during the insertion of the sealing sleeve 15 into the protective sleeve 18, the outer peripheral surface of the end of the sealing sleeve 15 facing the base 13 contracts inward to act as a guide, making it easier for the sealing sleeve 15 to be inserted into the protective sleeve 18, and preventing it from being jammed by the protective sleeve 18 during the insertion process.

[0067] refer to Figure 2 and Figure 3As shown, in some embodiments, the surgical instrument 10 may further include a rotating shaft 19, one end of which is connected to the base 13, and the other end is used to drive the instrument box 31. The instrument box 31 can drive the rotating shaft 19 to rotate around the axis of the connecting structure 14, thereby driving the base 13, the connecting structure 14, the sealing sleeve 15, and the instrument structure 12 to rotate synchronously as a whole, thereby adjusting the angle of the instrument structure 12 to meet different surgical needs. Further, in some embodiments, at least a portion of the conductive element 11 is disposed within the rotating shaft 19, and the conductive element 11 is rotatably connected to the conductive structure 17. Thus, when the instrument box 31 drives the instrument structure 12 to rotate via the rotating shaft 19, the conductive structure 17 rotates synchronously with the base 13, while the conductive element 11 can rotate relative to the conductive structure 17, so that the conductive element 11 does not rotate with the conductive structure 17, thereby reducing the risk of the conductive element 11 breaking or being damaged due to rotation, and also maintaining the stability of the electrical connection between the conductive element 11 and the instrument structure 12 during the rotation of the instrument structure 12. The rotational connection between the conductive element 11 and the conductive structure 17 is not limited and can be achieved by any suitable method such as a slide rail, as long as a stable electrical connection can be achieved during rotational connection. In some embodiments, the conductive structure 17 may include a rotor and a stator connected to each other. The stator is fixedly connected to the conductive element 11, and the rotor is fixedly connected to the base 13. When the base 13 is driven to rotate by the instrument box 31, it can drive the rotor of the conductive structure 17 to rotate synchronously, while the stator can rotate relative to the rotor. When the rotor rotates, the stator and the conductive element 11 rotate relative to the rotor as a whole, so that the conductive element 11 does not rotate with the rotor and the base 13, thereby improving the stability of the electrical connection between the conductive element 11 and the instrument structure 12 during the rotation of the instrument structure 12.

[0068] refer to Figure 2 and Figure 4 As shown, in some embodiments, the instrument structure 12 is provided with an electrode 121, which is inserted into the connecting groove 143 for electrical connection with the electrical connector 16. In some embodiments, the electrical connector 16 includes a compression spring 161 and an electrode plate 162. One end of the compression spring 161 abuts against the conductive structure 17 for electrical connection with the conductive structure 17, and the other end is connected to the electrode plate 162 for electrical connection with the electrode plate 162. The side of the electrode plate 162 facing away from the compression spring 161 abuts against the electrode 121 of the instrument structure 12 for electrical connection with the instrument structure 12. When the sealing sleeve 15 is fitted onto the connecting structure 14, the compression spring 161 can be in a compressed state under the compression of the electrode 121 and the conductive structure 17. Thus, the elastic restoring force of the compression spring 161 can make the compression spring 161 press against the conductive structure 17 and also press the electrode plate 162 against the electrode 121, thereby making the electrical connection between the conductive element 11 and the instrument structure 12 more stable and reliable.

[0069] refer to Figure 8 As shown, in some embodiments, the electrical connector 16 can be a spring 163 with elastic deformation capability. The spring 163 is disposed on the inner wall of the connecting structure 14. For example, both ends of the spring 163 are disposed on the inner wall of the connecting structure 14, and one end of the spring 163 can contact the conductive structure 17 for electrical connection. The middle part of the spring 163 is spaced apart from the inner wall of the connecting structure 14. When the electrode 121 of the instrument structure 12 is inserted into the connecting groove 143, the side wall of the instrument structure 12 abuts against the spring 163. For example, the spring 163 can be deformed to press the middle part of the spring 163 against the inner wall of the connecting structure 14. Thus, the elastic recovery force of the spring 163 can also improve the electrical connection stability between the spring 163 and the instrument structure 12. At the same time, it is not necessary to overcome the elastic force of the compression spring 161 during the installation of the connecting structure 14 and the sealing sleeve 15, making the installation of the surgical instrument 10 easier. In some embodiments, the electrical connector 16 includes two spring pieces 163, which are disposed opposite to each other on the inner wall of the connection structure 14. The electrode 121 of the instrument structure 12 can be inserted between the two spring pieces 163 and abut against the two spring pieces 163 respectively, which is beneficial to further improve the electrical connection stability between the electrical connector 16 and the instrument structure 12.

[0070] Please see Figure 9 and Figure 10 In some embodiments, the surgical instrument 10 further includes a retainer 21. The retainer 21 is connected to the side of the base 13 facing the sealing sleeve 15 and forms a one-sided opening engagement space 211 with the base 13. The connecting structure 14 is disposed within the engagement space 211, and the retainer 21 covers at least a portion of the sealing sleeve 15. For example, the retainer 21 is connected to the periphery of the base 13 and surrounds the connecting structure 14. The engagement space 211 is formed inside the retainer 21. When the sealing sleeve 15 is at least partially disposed in the engagement space 211, the sealing sleeve 15 is fitted onto the connecting structure 14 and partially disposed between the retainer 21 and the connecting structure 14 to seal the connecting structure 14. By further providing the retainer 21 to cover the sealing sleeve 15 in addition to the sealing of the connecting structure 14 by the sealing sleeve 15, the sealing performance and electrical safety performance of the surgical instrument 10 can be further improved.

[0071] The detachable engagement method of the sealing sleeve 15 with the connecting structure 14 and the base 13 is not limited. When the surgical instrument 10 is equipped with a retainer 21, the sealing sleeve 15 can also be detachably connected to the base 13 by the engagement between the sealing sleeve 15 and the retainer 21. Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, in some embodiments, the outer wall of the sealing sleeve 15 is provided with a fourth locking boss 154, and the inner wall of the sleeve 21 is provided with a fourth mating boss 212. The fourth mating boss 212 is provided with a locking groove 2121 opening towards the base 13. When the sealing sleeve 15 is fitted onto the connecting structure 14, the fourth locking boss 154 is embedded in the locking groove 2121. Since the locking groove 2121 opens towards the base 13, when the fourth locking boss 154 is embedded in the locking groove 2121, the fourth locking boss 154 abuts against the side of the fourth mating boss 212 facing the base 13, and the fourth mating boss 212 also abuts against the two sides of the fourth locking boss 154 located circumferentially on the connecting structure 14. The fourth mating boss 212 limits the fourth locking boss 154 in three directions to realize the mutual connection between the sealing sleeve 15 and the sleeve 21.

[0072] Understandably, since the fourth mating boss 212 does not limit the fourth locking boss 154 facing the base 13, in order to ensure that the fourth locking boss 154 does not disengage from the locking groove 2121 from the side of the fourth mating boss 212 facing the base 13 when the sealing sleeve 15 and the ferrule 21 are connected, in this embodiment, the electrical connector 16 can adopt a combination of the compression spring 161 and the electrode plate 162 as described in the above embodiment. When the fourth locking boss 154 is inserted into the locking groove 2121, the compression spring 161 in the contracted state will squeeze the electrode 121 of the instrument structure 12, thereby driving the fourth locking boss 154 to press against the side of the fourth mating boss 212 facing the base 13, so as to keep the fourth locking boss 154 in the locking groove 2121 and realize the connection between the sealing sleeve 15 and the ferrule 21.

[0073] Understandably, when it is necessary to remove the sealing sleeve 15 from the ferrule 21, the fourth locking boss 154 can be disengaged from the locking groove 2121 on the side of the fourth mating boss 212 facing the base 13 by pressing the sealing sleeve 15, thereby causing the sealing sleeve 15 to disengage from the ferrule 21. During the process of pressing the sealing sleeve 15, the compression spring 161 is further compressed. When the sealing sleeve 15 is disengaged from the ferrule 21, the compression spring 161 is released and returns to its original state.

[0074] For example, in some embodiments, the inner wall of the sleeve 21 is provided with a plurality of fourth mating bosses 212, which are arranged sequentially at intervals along the circumference of the connecting structure 14. The fourth mating bosses 212 are spaced apart from the base 13, and a release groove 2122 is formed between two adjacent fourth mating bosses 212. Correspondingly, the outer wall of the sealing sleeve 15 is provided with a plurality of fourth locking bosses 154, which are arranged sequentially at intervals along the circumference of the connecting structure 14. The positions of the plurality of fourth locking bosses 154 in the circumference of the connecting structure 14 correspond to the locking grooves 2121 of the plurality of fourth mating bosses 212.

[0075] When it is necessary to remove the sealing sleeve 15 from the ferrule 21, press the sealing sleeve 15 so that it moves closer to the base 13, thereby causing the fourth locking boss 154 to disengage from the fourth mating boss 212 and move between the fourth mating boss 212 and the base 13. Then, rotate the sealing sleeve 15 in the circumferential direction of the connecting structure 14 until the fourth locking boss 154 is aligned with the release groove 2122 between the two adjacent fourth mating bosses 212. The fourth locking boss 154 can then disengage from the ferrule 21 along the release groove 2122, so that the sealing sleeve 15 is removed from the ferrule 21. Accordingly, when the sealing sleeve 15 needs to be inserted into the ferrule 21, the fourth locking boss 154 is aligned with the release groove 2122. During the insertion of the sealing sleeve 15 into the ferrule 21, the fourth locking boss 154 moves along the release groove 2122. When the fourth locking boss 154 moves to the side of the fourth mating boss 212 facing the base 13, the sealing sleeve 15 is rotated circumferentially along the connecting structure 14 until the locking groove 2121 of the fourth locking boss 154 aligns with the locking groove 2121 of the fourth mating boss 212. The sealing sleeve 15 is then released, and the fourth locking boss 154 can be embedded into the locking groove 2121 and pressed against the fourth mating boss 212 under the elastic action of the compression spring 161, thus completing the installation of the sealing sleeve 15. Therefore, the detachable connection of the sealing sleeve 15 is achieved through the cooperation of the ferrule 21 and the sealing sleeve 15, making the installation and removal of the sealing sleeve 15 more convenient and quick. The cooperation between the ferrule 21 and the sealing sleeve 15 can also further improve the sealing performance of the surgical instrument 10.

[0076] refer to Figure 11 and Figure 12As shown, in some embodiments, the portion of the fourth mating boss 212 corresponding to the opening of the locking groove 2121 has a first guide surface 2123 facing the base 13. The first guide surface 2123 is inclined to the axial direction of the connecting structure 14. The fourth locking boss 154 has a second guide surface 1541 facing away from the base 13. The second guide surface 1541 is also inclined to the axial direction of the connecting structure 14, and the first guide surface 2123 and the second guide surface 1541 have the same inclination direction relative to the axial direction of the connecting structure 14. Thus, during the process of the fourth locking boss 154 disengaging from the locking groove 2121, when the second guide surface 1541 moves to the position where the first guide surface 2123 is located, rotating the sealing sleeve 15 allows the second guide surface 1541 of the fourth locking boss 154 to slide along the first guide surface 2123 and disengage from the locking groove 2121. Of course, during the process of inserting the sealing sleeve 15 into the ferrule 21, when the fourth locking boss 154 moves to the side of the fourth mating boss 212 facing the base 13, rotating the sealing sleeve 15 allows the second guide surface 1541 to slide along the first guide surface 2123, thereby allowing the fourth locking boss 154 to enter the locking groove 2121. The arrangement of the first guide surface 2123 and the second guide surface 1541 makes the operation of the fourth locking boss 154 entering and exiting the locking groove 2121 more convenient and faster. In some embodiments, the first guide surface 2123 may be parallel to the second guide surface 1541, so that the first guide surface 2123 and the second guide surface 1541 can better cooperate to facilitate the entry and exit of the fourth locking boss 154 into and out of the locking groove 2121.

[0077] refer to Figure 1 and Figure 13 As shown, some embodiments of this application also provide a surgical system 30, including an instrument box 31 and surgical instruments 10 as described in any of the above embodiments, with the surgical instruments 10 disposed in the instrument box 31. The instrument box 31 can control the surgical instruments 10 to meet different surgical needs, such as controlling the rotation of the instrument structure 12. In some embodiments, the surgical instruments 10 may further include a snake skeleton, which may be connected to the side of the base 13 facing away from the sealing sleeve 15, or disposed at any position in the axial direction of the surgical instruments 10. The instrument box 31 can also control the bending angle of the instrument structure 12 by controlling the bending of the snake skeleton, for example, realizing the six degrees of freedom of the instrument structure 12 to meet different surgical needs. In some embodiments, the surgical system 30 may further include a power box, a robotic arm, and other structures. The power box can cooperate with the instrument box 31 to control the surgical instruments 10, and the robotic arm can be used to fix the instrument box 31 or to move the instrument box 31. The surgical system 30 may also be configured with any suitable components to achieve corresponding functions, which will not be described in detail here.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A surgical instrument, characterized in that, include: Base; A connecting structure is provided, which is connected to the base and has a connecting groove. The instrument structure is located on the side of the connecting structure opposite to the base, and at least a portion of the structure is located within the connecting groove; A sealing sleeve is fitted around the periphery of the instrument structure and the connecting structure to seal the instrument structure and the connecting structure to each other. The connecting groove has an opening facing the instrument structure. A portion of the instrument structure extends into the connecting groove through the opening. The sealing sleeve is sealed to the connecting structure and the instrument structure at the opening. The conductive element has at least a portion of its structure exposed on the side of the base opposite to the connection structure. An electrical connector is disposed within the connecting groove and electrically connects the conductive element to the instrument structure.

2. The surgical instrument according to claim 1, characterized in that, The surgical instrument further includes a conductive structure, which is disposed within the base and partially exposed in the connecting groove. The electrical connector and the conductive element are located on opposite sides of the conductive structure and are both electrically connected to the conductive structure.

3. The surgical instrument according to claim 1, characterized in that, The outer wall of the connecting structure is provided with a first locking boss, and the inner wall of the sealing sleeve is provided with a first mating boss. The first locking boss abuts against the side of the first mating boss facing away from the base.

4. The surgical instrument according to claim 3, characterized in that, The sealing sleeve has elastic deformation capability, and the first mating boss is approximately annular.

5. The surgical instrument according to claim 1, characterized in that, The outer wall of the connecting structure is provided with a second locking boss, and the inner wall of the sealing sleeve is provided with a second mating boss. The second mating boss forms a locking groove, and the second locking boss is embedded in the locking groove. The second locking boss abuts against the second mating boss on both sides of the connecting structure in the circumferential direction.

6. The surgical instrument according to claim 1, characterized in that, The surgical instrument also includes a protective sleeve that covers the base and part of the sealing sleeve, with at least a portion of the conductive element located inside the protective sleeve; The outer wall of the sealing sleeve is provided with a third locking boss, and the inner wall of the protective sleeve is provided with a third mating boss. The third locking boss abuts against the side of the third mating boss facing the base.

7. The surgical instrument according to claim 6, characterized in that, The third locking boss is approximately annular, and its outer peripheral surface is inclined to the axial direction of the connecting structure.

8. The surgical instrument according to claim 1, characterized in that, The surgical instrument also includes a retainer, which is connected to the side of the base facing the sealing sleeve and forms a snap-fit ​​space with the base that has a single-sided opening. The connecting structure is located within the snap-fit ​​space, and the retainer covers at least a portion of the sealing sleeve.

9. The surgical instrument according to claim 8, characterized in that, The outer wall of the sealing sleeve is provided with a fourth locking boss, and the inner wall of the sleeve is provided with a fourth mating boss. The fourth mating boss is provided with a locking groove facing the opening of the base, and the fourth locking boss is embedded in the locking groove.

10. The surgical instrument according to claim 9, characterized in that, The inner wall of the sleeve is provided with a plurality of fourth mating protrusions, which are arranged sequentially at intervals along the circumference of the sleeve. The fourth mating protrusions are spaced apart from the base, and a release groove is formed between two adjacent fourth mating protrusions to allow the fourth locking protrusion to disengage from the sleeve.

11. The surgical instrument according to claim 9, characterized in that, The fourth mating boss has a first guide surface facing the base at the opening of the locking groove, and the fourth locking boss has a second guide surface facing away from the base. Both the first guide surface and the second guide surface are inclined to the axial direction of the connecting structure.

12. A surgical system, characterized in that, It includes an instrument case and a surgical instrument as described in any one of claims 1-11, wherein the surgical instrument is disposed in the instrument case.

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