Operating handle and surgical instrument

Abstract

The operating handle comprises a shell and a first operating piece installed on the shell, the shell comprises a main body part and a holding part, a window is formed in the main body part, at least part of the first operating piece is exposed out of the window, the main body part is provided with a finger groove which is concave inwards, and the finger groove is provided with a handle. The finger groove is located in the rear side of the first operation piece. The first operating piece is provided with a plurality of ridge parts and concave parts which are distributed at intervals in the circumferential direction, the ridge parts are not higher than the outer surface of the main body part, and the concave parts are lower than the ridge parts and not lower than the surfaces of the finger grooves. According to the utility model, the operation comfort and accuracy of a user can be improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an operating handle and surgical instrument. Background Technology

[0002] Surgical clamping instruments are frequently used in laparoscopic surgery. These instruments are inserted into the abdomen through small incisions in the skin, using small-diameter tubes or cannulas. During the procedure, medical personnel manipulate the surgical clamping instruments from outside the patient's body to control the actions of the inserted end-effector.

[0003] In the field of medical devices, there are various types of operating handles, but operating handles are generally equipped with at least one operating element to control the movement of surgical instruments. When designing the operating elements on current operating handles, a great deal of research is generally conducted on how to improve the convenience and labor-saving effect of operation.

[0004] However, during surgery, medical staff need to hold the operating handle and maintain a certain posture. During this process, the operating components on the operating handle are easily accidentally touched, which can affect the precision of the surgical instruments.

[0005] Therefore, it is necessary to design an operating handle that is both easy to operate and can prevent accidental activation of the operating components during use. Summary of the Invention

[0006] This invention aims to address, to a certain extent, one of the technical problems in related technologies. To this end, this invention provides an operating handle and surgical instrument that can improve user comfort and accuracy.

[0007] To achieve the above objectives, a first aspect of the present invention discloses an operating handle, including a housing and a first operating member mounted on the housing. The housing includes a main body and a gripping portion. A window is formed on the main body, and at least a portion of the first operating member is exposed through the window. The main body has an inwardly recessed finger groove located on the rear side of the first operating member. The first operating member has a plurality of ridges and recesses spaced apart circumferentially. The ridges are not higher than the outer surface of the main body, and the recesses are lower than the ridges and not lower than the surface of the finger groove.

[0008] In this technical solution, a window and a first operating component exposed through the window are provided on the main body, facilitating the operator's contact with the first operating component and thus improving operation. The finger groove allows the operator's fingers to more easily contact and apply force to the first operating component. Furthermore, the finger groove is located on the rear side of the first operating component, allowing the fingers to naturally rest within it when operation is needed, making accurate operation easier. Moreover, the structure where the outer surface of the first operating component is not higher than the outer surface of the main body prevents accidental contact with the first operating component when operation is not required, improving operational precision.

[0009] Furthermore, the first operating member is formed as a tapered structure with a rear diameter larger than the front diameter; and / or, the central angle of the recess is larger than the central angle of the ridge. The larger recess facilitates the application of force by the finger to the first operating member and can accommodate the thickness of the finger; the tapered structure adapts to the natural extension of the finger, facilitating operation.

[0010] Furthermore, at least two of the recesses and at least two of the ridges are exposed outside the window; and / or, there are two windows and two finger slots, symmetrically distributed on both sides of the main body. This ensures that the operable area of ​​the first operating member is large enough to facilitate easier contact and force application regardless of the first operating member's rotation angle; the symmetrical distribution of the windows and finger slots accommodates the different operating habits of the operator's left and right hands, ensuring smooth operation for both hands.

[0011] Furthermore, the width of the finger groove is equal to or less than the width of the window; and / or, the finger groove extends curvedly from its rear end along the axial direction of the main body towards the gripping part. Within the width support range of the finger groove, the fingers can reach the first operating element, avoiding the phenomenon of fingers slipping into empty space. With the finger groove curved and extended, it is beneficial for the fingers to better adapt to their shape and provide better support when moving from the gripping part towards the first operating element.

[0012] Furthermore, the operating handle also includes a second operating member, which is sequentially spaced from the first operating member along the axial direction of the main body, and the second operating member is coaxially distributed with the first operating member; at least a portion of the outer surface of the second operating member is higher than the outer surface of the main body. Because the outer surface of the second operating member is higher than the outer surface of the first operating member, it is less likely to accidentally touch the first operating member when operating the second operating member.

[0013] Furthermore, the second operating member has a plurality of protrusions and recesses spaced apart along the circumference, the outer surface of the protrusions being higher than the outer surface of the main body, and the recesses smoothly transitioning to the front end of the main body; and / or, the front end of the main body is formed with a mounting port for inserting a forceps drive assembly of a surgical instrument, the second operating member and the first operating member being coaxially arranged with the mounting port and rotatably disposed on the housing, and respectively used to control the opening and closing and swaying of the forceps assembly of the surgical instrument.

[0014] Furthermore, the housing also includes a connecting portion disposed between the main body and the grip portion, the rear surface of the connecting portion being recessed into the main body and the grip portion to form a thumb groove between the rear end of the main body and the rear end of the grip portion, the thumb groove being located below the middle or rear of the finger groove.

[0015] Furthermore, the front surface of the connecting portion is recessed into the main body and the grip portion to form a fingertip receiving groove between the front end of the main body and the front end of the grip portion; when the operating handle has a second operating member, the fingertip receiving groove is located below between the first operating member and the second operating member.

[0016] Furthermore, the distance between the front and rear parts of the connecting portion does not exceed a set distance, so that when the operator's hand's web is in contact with the outer surface of the web groove, the tip of the operator's index finger can be inserted into the fingertip receiving groove; the depth of the web groove is not less than a set depth, so that when the operator's hand's web is in contact with the outer surface of the web groove, the rear end of the main body rests against the back of the operator's hand. In use, the web groove matches the shape of the hand's web, and the depth of the web groove is limited in this application, making the web groove deeper. This provides a larger support area for the upper and lower surfaces of the hand's web position when gripping, improving the support effect on the web position; a fingertip receiving groove is also provided, providing a dedicated support position for the index finger when not in use, which can better support the index finger and avoid hand fatigue caused by prolonged lack of support. In addition, the specially designed fingertip receiving groove can also prevent accidental contact with the operating component caused by finger shaking when holding the operating handle, reducing the risk of accidental contact.

[0017] Furthermore, the set depth is not less than 1 / 3 of the set distance.

[0018] Furthermore, the surfaces of the connecting portion, the main body portion, and the grip portion are all curved surfaces, and the three transition continuously; and / or, the side surface of the connecting portion is recessed within the main body portion and the grip portion, and the recess depth of the side surface of the connecting portion is between 2mm and 5mm.

[0019] Furthermore, the front width of the connecting portion is smaller than the rear width of the connecting portion; and / or, the extending direction of the connecting portion intersects the axial direction of the main body portion.

[0020] Furthermore, when the operating handle has a second operating member, the bottom of the thumb groove forms a first predetermined distance with the center of the second operating member, and forms a second predetermined distance with the center of the first operating member. The first predetermined distance L1 is between 60mm and 79mm, and the second predetermined distance L2 is between 30mm and 45mm; and / or, the first operating member is operated by the thumb or by the index finger, and the finger groove is used to support the corresponding finger operating the first operating member, and the second operating member is operated by the index finger.

[0021] Furthermore, the housing also includes a third operating member disposed at the front end of the grip portion. The third operating member is rotatably connected to the surface of the grip portion. When the operating handle has a second operating member, the third operating member is located below the end of the second operating member and the end of the first operating member. The outer surface of the third operating member protrudes from the outer surface of the grip portion.

[0022] Furthermore, the front surface of the connecting portion is recessed into the main body and the grip portion to form a fingertip receiving groove between the front end of the main body and the front end of the grip portion, and the third operating member is disposed below the rear side of the fingertip receiving groove.

[0023] And / or, the third operating member is operated by the thumb, and the center of the third operating member forms a third set distance with the thumb groove, the third set distance L3 being between 40mm and 58mm.

[0024] Furthermore, the operating handle includes a prompting tone component, which is at least partially disposed on the second operating member and the first operating member, such that the second operating member and the first operating member emit a prompting tone during operation; and / or, the prompting tone component is at least partially disposed on the third operating member, such that the third operating member emits a prompting tone during operation.

[0025] A second aspect of the present invention also discloses a surgical instrument, including a forceps head assembly, a forceps head drive assembly, and an operating handle, wherein the output end of the forceps head drive assembly is connected to the forceps head assembly, the operating handle is an operating handle of the first aspect, and the input end of the forceps head drive assembly is connected to the first operating member.

[0026] The beneficial effects of the surgical instrument disclosed in the second aspect of the present invention are similar to the beneficial effects of the operating handle in the first aspect, and will not be repeated here.

[0027] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of the present invention will be shown in detail in conjunction with the accompanying drawings, but this is not intended to limit the technical solutions of the present invention. In addition, each of these features, elements and components appearing in the following text and drawings is a plurality of, and different symbols or numbers are used for convenience of representation, but all represent parts with the same or similar construction or function. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Figure 1.1 This is a perspective view of the operating handle according to one embodiment of the present invention;

[0030] Figure 1.2 This is a side view of the outer casing according to one embodiment of the present invention;

[0031] Figure 2 This is a rear view of the operating handle according to one embodiment of the present invention;

[0032] Figure 3 This is a front view of the operating handle according to one embodiment of the present invention;

[0033] Figure 4.1 This is a side view of the operating handle according to one embodiment of the present invention;

[0034] Figure 4.2 A schematic diagram showing the distance S1 and the depth S2 set on the outer shell of the operating handle according to one embodiment of the present invention;

[0035] Figure 5 This is a side view of the operating handle according to one embodiment of the present invention (a state diagram of the locking component rotating out of the mounting slot).

[0036] Figure 6 This is a top view of the operating handle according to one embodiment of the present invention;

[0037] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0038] Figure 8 This is a structural diagram of a locking component according to one embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram showing the positional relationship and operation of the second operating element of the operating handle of the present invention;

[0040] Figure 10 This is a schematic diagram showing the positional relationship and operation of the first operating element of the present invention;

[0041] Figure 11This is a schematic diagram illustrating the positional relationship and operation of the movable handle of the present invention;

[0042] Figure 12 This is a structural diagram of a surgical instrument according to one embodiment of the present invention.

[0043] in,

[0044] 10. Outer shell; 11. Main body; 111. Window;

[0045] 12. Grip part; 13. Connecting part; 14. Thumb groove; 15. Finger tip receiving groove; 16. Fixed handle; 17. Mounting port; 18. Mounting groove; 19. Finger groove;

[0046] 21. Second operating component; 22. First operating component; 23. Movable handle; 24. Locking assembly; 241. Pivoting connection; 242. Third operating component; 2421. Operating body; 2422. Protruding operating bar; 28. Ridge; 29. ​​Recess;

[0047] 30. Pliers head assembly; 31. Pliers head drive assembly. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain the present invention and should not be construed as limiting the invention.

[0049] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this invention. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0050] Surgical instrument handles can generally be classified into straight handles, pistol handles, palm handles, and thumb ring handles according to ergonomics. Among them, the pistol handle is more in line with the natural grip posture of the hand and can reduce hand fatigue during long-term operation. The operating handle in this invention is set as a pistol handle.

[0051] Because surgical instruments generally require adjustments in multiple aspects during use, the handle is usually equipped with multiple operating parts to control different movements of the surgical instrument, such as oscillation, opening and closing, and rotation. In related technologies, to avoid accidental activation between different operating parts during operation, the different operating parts are usually set to be relatively far apart. However, this makes it inconvenient for medical staff to operate with one hand, which undoubtedly increases the workload of medical staff and is also prone to accidental activation, affecting the accuracy of surgical operations.

[0052] In view of this, see Appendix Figures 1.1 to 6 One embodiment of the present invention discloses an operating handle, including a housing 10 and a first operating member 22 mounted on the housing 10. The housing 10 includes a main body 11 and a gripping part 12. A window 111 is formed on the main body 11, and at least a portion of the first operating member 22 is exposed through the window 111. The main body 11 is provided with an inwardly recessed finger groove 19, which is located on the rear side of the first operating member 22. The first operating member 22 has a plurality of ridges 28 and recesses 29 spaced apart in a circumferential direction. The ridges 28 are not higher than the outer surface of the main body 11, and the recesses 29 are lower than the ridges 28 and not lower than the surface of the finger grooves 19.

[0053] The operating handle in this embodiment is shown in the attached figure. Figure 1.1 , 1.2 As shown in 4.1 and 4.2, the grip portion 12 is located below the main body portion 11, and the first operating member 22 is disposed on the main body portion 11, also located above the grip portion 12. A portion of the first operating member 22 is exposed through the window 111 on the main body portion 11. In use, the operator holds the grip portion 12. When it is necessary to operate the first operating member 22, the operator's fingers extend from the finger groove 19 to the first operating member 22. Since the recess 29 of the first operating member 22 is not lower than the surface of the finger groove, and the ridge 28 of the first operating member 22 is higher than the surface of the finger groove, the fingers can easily touch the first operating member 22 in the finger groove, thus facilitating the operation of the first operating member.

[0054] It is important to note that, since the outer surface of the main body 11 is a smooth curved surface, and the ridge 28 of the first operating member 22 in this embodiment is not higher than the outer surface of the main body 11, in other words, the ridge 28 is lower than or equal to the outer surface of the main body 11. The outer surface of the main body referred to here is the outer surface without windows. That is, the surface formed by connecting points on the outer surface at the edge of the first operating member 22 is generally lower than or equal to the outer surface of the main body. When they are equal, the outer surface at the edge of the first operating member 22 smoothly transitions to the outer surface of the main body 11. This can be understood as follows: without the finger groove 19, the first operating member 22 in this embodiment would be essentially inside the main body 11. However, by providing the finger groove 19, the first operating member 22 only forms a protruding structure relative to the finger groove 19. This makes it easier and more accurate for the operator to touch the first operating member 22 when reaching towards it from the direction of the finger groove 19. If the operator approaches from other directions (such as vertically downward or vertically upward), the finger will have difficulty touching the first operating member 22 without bending due to the obstruction of the outer surface of the main body 11, thus preventing accidental touch.

[0055] As one embodiment of the present invention, see Appendix Figure 6 The first operating element 22 is configured as a cone with a rear diameter larger than its front diameter. In this embodiment, the shape of the first operating element 22 is adapted to the natural extension direction of the index finger. Thus, when the index finger is naturally extended, it is difficult to touch the first operating element 22, further avoiding the possibility of misoperation, facilitating operation, and improving the stability of operation.

[0056] See appendix Figure 4.1 In one embodiment of the present invention, the central angle of the recess 29 is larger than that of the ridge 28. The recess 29 in this embodiment occupies a larger area, making it easier for fingers to engage with the operating component when the finger is in control. Applying force to the sidewalls of the recess 29 is also more convenient, requiring less effort compared to when the recess 29 is smaller and friction is needed to drive the operating component.

[0057] In one embodiment of the invention, at least two of the recesses 29 and at least two of the ridges 28 are exposed in the window 111. This ensures that the operable area of ​​the first operating member 22 is large enough that the operator can more easily access and apply force to the first operating member 22 at any rotation angle. Specifically, there are three recesses 29 and two ridges 28; or two recesses 29 and three ridges 28; or all three.

[0058] In one embodiment of the present invention, there are two windows 111 and two finger slots 19, symmetrically distributed on both sides of the main body 11. The symmetrical distribution of the windows and finger slots can accommodate the different operating habits of the operator with the left and right hands, and both hands can operate smoothly.

[0059] As one embodiment of the present invention, see Appendix Figure 1.1 , 1.2 The width of the finger groove 19 is equal to or less than the width of the window 111.

[0060] This embodiment defines the dimensional relationship between the width of the finger groove 19 and the width of the window 111, where the width of the finger groove and the width of the window 111 refer to the dimensions along the vertical direction of the outer casing 10, such as... Figure 1.2The vertical dimension is defined. Within the width support range of the finger groove 19, all fingers can reach the first operating element 22, avoiding the phenomenon of fingers stepping into empty space and facilitating blind operation. This limitation ensures that when the operator's fingers operate the first operating element 22 from behind along the finger groove 19, the fingers can directly touch the first operating element 22 regardless of their position in the finger groove 19. This avoids the problem that the fingers may not be able to directly contact the first operating element 22 due to the finger groove 19 being too large. The operator does not need to consciously control the position of their fingers; during use, they only need to perceive the position of the finger groove 19 to easily reach the first operating element 22, facilitating blind operation.

[0061] As one embodiment of the present invention, see Appendix Figure 1.1 , 1.2 The finger groove 19 bends and extends from the rear end along the axial direction of the main body 11 toward the gripping part 12.

[0062] In this embodiment, the rear end of the finger groove 19 is bent towards the grip portion 12, which can well adapt to the human hand grip design. Since the grip portion 12 is located below the main body 11, the fingers are generally held in the position below the main body when not in use. Thus, when operation is required, the fingers need to be lifted upwards. When the fingers are lifted, the rear end position generally remains basically unchanged or the lifting size is small, while the front end lifts a larger distance. Therefore, the structure of the rear end of the finger groove 19 bending towards the grip portion (downwards) conforms to ergonomics, provides better support, and makes operation more convenient. It can also avoid the discomfort caused by the protrusion formed between the finger groove 19 and the main body 11 pressing on the back of the fingers, thereby improving the comfort during operation.

[0063] The present invention does not specifically limit the shape of the finger groove 19. In actual installation, the finger groove 19 can be configured as shown in the attached figure. Figure 1.1 and Figure 1.2 Different shapes.

[0064] As one embodiment of the present invention, the operating handle further includes a second operating member 21, the second operating member 21 and the first operating member 22 are arranged sequentially at intervals along the axial direction of the main body 11, and the second operating member 21 and the first operating member 22 are coaxially distributed; at least a portion of the outer surface of the second operating member 21 is higher than the outer surface of the main body 11.

[0065] See appendix Figure 1.1 , 1.2In this embodiment, the second operating member 21 and the first operating member 22 are coaxially arranged, which facilitates the installation with the forceps head drive assembly 31 and reduces the volume of the outer shell 10. The two operating members are the second operating member 21 and the first operating member 22, which can realize the adjustment of different movements of the surgical instrument and make the function of the operating handle more diversified. The second operating member 21 is located at the opening at the front end of the main body 11 and is used to drive the overall rotation of the surgical instrument. The second operating member 21 is located on the front side of the fingertip receiving groove 15. When the operating handle is in use, the fingertip is supported in the fingertip receiving groove 15 when there is no operation. When the second operating member 21 needs to be operated, the index finger only needs to extend to the upper front side to contact the second operating member 21, which facilitates the operation.

[0066] The design of the outer surface of the second operating member 21 being higher than the outer surface of the main body 11 also makes it easier for the operator's fingers to touch the second operating member 21.

[0067] As one embodiment of the present invention, the second operating member 21 has a plurality of protrusions and recesses distributed circumferentially. The outer surface of the protrusions is higher than the outer surface of the main body 11, and the recesses are smoothly transitioned to the front end of the main body 11. Since the operator generally inserts the tip of the index finger into the recess when operating the second operating member 21, the smooth transition design can make the cooperation between the finger and the second operating member 21 smoother.

[0068] In one embodiment of the present invention, the front end of the main body 11 has a mounting port 17 for inserting a forceps drive assembly 31 of a surgical instrument. The second operating member 21 and the first operating member 22 are coaxially arranged with the mounting port 17 and rotatably disposed on the housing 10, and are respectively used to control the rotation and yaw of the forceps assembly 30 of the surgical instrument. Both the second operating member 21 and the first operating member 22 are knobs, which can rotate relative to the axis of the main body 11.

[0069] In this embodiment, when the operating handle is in use, the input end of the forceps drive assembly 31 of the surgical instrument is inserted into the housing 10 from the mounting port 17, and the output end of the forceps drive assembly 31 is connected to the forceps assembly 30 of the surgical instrument. The second operating member 21 and the first operating member 22 are coaxially arranged with the mounting port 17 for easy connection with the forceps drive assembly 31.

[0070] In this embodiment, the specific design does not limit which of the second operating member 21 and the first operating member 22 controls the rotation of the forceps assembly 30 of the surgical instrument. Generally, the first operating member 22 can be set to control the sway of the forceps assembly 30 of the surgical instrument, and the second operating member 21 can control the rotation of the forceps assembly 30 of the surgical instrument.

[0071] In this embodiment, the first operating element 22 is positioned between the thumb groove 14 and the second operating element 21. It can be seen that the positional distribution of the second operating element 21 and the first operating element 22 allows different parts of the finger to manipulate different operating elements, thereby controlling different movements of the surgical instruments. This enables single-handed operation of multiple operating elements, further improving the smoothness of the surgical process.

[0072] As one embodiment of the present invention, the outer shell 10 further includes a connecting portion 13 disposed between the main body portion 11 and the grip portion 12. The rear surface of the connecting portion 13 is recessed into the main body portion 11 and the grip portion 12 to form a tiger's mouth groove 14 between the rear end of the main body portion 11 and the rear end of the grip portion 12. The tiger's mouth groove 14 is located below the middle or the rear of the finger groove 19.

[0073] The front surface of the connecting portion 13 is recessed into the main body portion 11 and the grip portion 12 to form a fingertip receiving groove 15 between the front end of the main body portion 11 and the front end of the grip portion 12; the fingertip receiving groove 15 is located below the first operating member 22 and the second operating member 21. When using the operating handle of this application, the user holds the operating handle with their hand. The tiger's mouth groove 14 in this application is designed to match the shape of the tiger's mouth of the human hand. During use, the tiger's mouth of the hand fits into the tiger's mouth groove 14. The distance between the fingertip receiving groove 15 and the tiger's mouth groove 14 is generally adapted to the length of the index finger, so that the index finger can be supported in the fingertip receiving groove 15. This forms a multi-point support effect for the hand, making the user's grip more secure. In addition, during the operation, when the index finger does not need to operate the operating component, the tip of the index finger can be placed in the fingertip receiving groove 15, providing a good support effect for the index finger. Moreover, the index finger can move and stretch freely in the fingertip receiving groove 15, avoiding excessive finger fatigue. Furthermore, since there is a gap between the fingertip receiving groove 15 and the operating component, the index finger can avoid accidentally touching the operating component during stretching.

[0074] As one embodiment of the present invention, refer to Figure 4.2 The distance between the front and rear parts of the connecting part 13 does not exceed a set distance S1, so that when the operator's hand web is in contact with the outer surface of the web groove 14, the tip of the operator's index finger can be inserted into the fingertip receiving groove 15; the depth of the web groove 14 is not less than a set depth S2, so that when the operator's hand web is in contact with the outer surface of the web groove 14, the rear end of the main body 11 abuts against the back of the operator's hand.

[0075] In one embodiment of the present invention, the set depth S2 is not less than 1 / 3 of the set distance S1.

[0076] In this embodiment, the depth of the thumb groove 14 is limited when the operating handle is in use (it is deeper than the thumb groove of the handle in the related art). This allows the main body 11 to rest against the back of the hand to support the operator's hand when the hand is holding it, so that the hand is not suspended in the air, making the grip more secure and less strenuous.

[0077] As attached Figure 4.2 As shown in the figure, in this embodiment, the dimensional relationship between the depth S2 and the distance S1 is set. Considering the normal length of the human index finger and the length ratio of the back part of the hand's web, as shown in the figure, it can be clearly seen that the web groove 14 in this application is deeper. In this way, when holding, the main body 11 and the gripping part 12 can form a larger area of ​​support effect on the upper and lower surfaces of the web of the hand, thereby making the grip more stable and less strenuous.

[0078] It should be noted that, in actual installation, the length by which the gripping part 12 protrudes rearward from the connecting part 13 and the length by which the main body part 11 protrudes rearward from the connecting part 13 can be set to different dimensions.

[0079] In one embodiment of the present invention, the surfaces of the connecting portion 13, the main body portion 11, and the grip portion 12 are all curved surfaces, and the three transition continuously. The side surface of the connecting portion 13 is recessed into the main body portion 11 and the grip portion 12, and the recess depth of the side surface of the connecting portion 13 is between 2 mm and 5 mm.

[0080] As attached Figure 1.1 , 4.1 As shown, the rear surface of the connecting part 13, the rear surface of the main body part 11, and the rear surface of the grip part 12 are smoothly connected, so that when gripping, the operator's palm, back of hand, and web of the thumb can fit well into the curved surface of the shell, making the grip more comfortable.

[0081] As attached Figure 2 , 3 The connecting portion 13 is recessed relative to the main body portion 11 and the grip portion 12, so that the distance between the two opposite sides of the connecting portion 13 is smaller when gripping. Moreover, the side surfaces of the connecting portion 13, the main body portion 11, and the grip portion 12 are all curved and smoothly connected, which facilitates gripping. Furthermore, the protruding parts of the main body portion 11 and the grip portion 12 can better wrap around the side of the index finger, providing better support for the index finger, improving grip stability, and requiring less effort.

[0082] In one embodiment of the present invention, the front surface of the connecting portion 13 is recessed within the main body portion 11 and the grip portion 12, and the front surfaces of the connecting portion 13, the main body portion 11, and the grip portion 12 are all curved surfaces and are continuous. This improves the comfort of the operator's index finger.

[0083] In one embodiment of the present invention, the width of the front part of the connecting part 13 is smaller than the width of the rear part of the connecting part.

[0084] In this embodiment, the front part of the connecting part 13 is narrower (to facilitate the bending of the index finger tip and placement in the fingertip receiving groove 15), and the rear part is wider to adapt to the width of the operator's thumb and forefinger, which is more ergonomic and makes the operator's grip more comfortable.

[0085] As attached Figure 2 , 3 As shown in Figure 6, the outer surface of the first operating member 22 in this embodiment protrudes from both sides of the side surface of the outer casing 10. In use, the first operating member 22 can be operated from different directions on both sides of the outer casing 10. It is applicable to both left and right hands and is suitable for users with different hand preferences, thus improving the user experience.

[0086] In one embodiment of the present invention, the axial direction of the mounting port 17 intersects the extending direction of the connecting portion 13.

[0087] See appendix Figure 4.1 , 4.2 In this embodiment, the distance between the fingertip receiving groove 15 and the operating member (first operating member 22 and second operating member 21) in the height direction is smaller than the distance between the tiger mouth groove 14 and the operating member in the height direction. This makes the distribution of the operating member and the connecting part 13 more in line with the natural extension structure of the human hand, and also makes it easier for the fingers to contact and manipulate the operating member in the grip state, thus improving the convenience of operating the operating member.

[0088] As one embodiment of the present invention, such as Figure 9 and Figure 10 As shown, the bottom of the tiger's mouth groove 14 forms a first set distance with the center of the second operating member 21, and forms a second set distance with the center of the first operating member 22. The first set distance L1 is between 60mm and 79mm, and the second set distance L2 is between 30mm and 45mm. In this embodiment, the range of L1 and L2 is determined based on the length of the index finger of most adults. Generally, the basic principle is that the fingertip of the index finger can easily operate the second operating member 21, and the fingertip of the index finger or the thumb can easily operate the first operating member 22.

[0089] In practical use, the first operating element 22 can be operated by the thumb or the index finger. The finger groove 19 supports the thumb or index finger operating the first operating element 22, while the second operating element 21 is operated by the index finger. When the index finger is used to operate the first operating element 22, it bends towards the finger groove 19 to provide support, facilitating operation. When the index finger is used to operate the second operating element 21, it naturally straightens. Due to the shape of the main body 11 and the first operating element 22, the possibility of accidental touch is avoided.

[0090] As one embodiment of the present invention, see Appendix Figure 1.1 The rear end of the gripping part 12 is formed with a fixed handle 16. One end of the fixed handle 16 is connected to the connecting part 13, and the other end of the fixed handle 16 is tilted backward. The outer shell 10 includes a movable handle 23 opposite to the fixed handle 16. The first end of the movable handle 23 is hinged to the gripping part 12. The movable handle 23 can rotate around the first end of the movable handle 23 and is used to control the opening and closing of the forceps assembly 30 of the surgical instrument. The rear side of the fixed handle 16 is connected to the surface of the tiger's mouth groove 14.

[0091] In this embodiment, when the operating handle is in use, the palm can fit against the outer surface of the fixed handle 16 in a gripping state. This, combined with the structure of the thumb groove 14, fingertip receiving groove 15, and connecting part 13 mentioned above, supports the entire hand, eliminating any unsupported parts. The upper part of the thumb fits against the bottom side of the main body 11, and the lower part fits against the rear side of the fixed handle 16. To better support the hand, the bottom end of the fixed handle 16 in this embodiment is tilted backward. This structural design better adapts to the natural gripping posture of the hand, making the grip more secure and reducing the burden on the hand, thus saving effort.

[0092] The relative positions of the first operating element 22, the finger groove 19, and the tiger's mouth groove 14 are arranged so that when the thumb or index finger operates the first operating element 22, the upper part of the tiger's mouth of the hand fits against the bottom side of the main body 11 and is supported by the tiger's mouth groove 14, which improves stability and accuracy in single-handed operation.

[0093] As one embodiment of the present invention, see Appendix Figure 4.1 , 4.25. The outer casing 10 further includes a locking assembly 24 disposed on the grip portion 12. The locking assembly 24 is used to lock the rotational position of the movable handle 23. The locking assembly 24 includes a pivot connection portion 241 and at least one third operating member 242. The pivot connection portion 241 is rotatably disposed on the grip portion 12. At least one third operating member 242 is disposed at one end of the main body portion 11. The third operating member 242 is disposed on the rear side of the fingertip receiving groove 15 and forms a third predetermined distance with the thumb groove 14. The outer surface of the third operating member 242 protrudes from the outer surface of the grip portion 12.

[0094] In this embodiment, a locking component 24 is provided on the grip portion 12. The locking component 24 is operated by the thumb, as shown in the attached figure. Figure 5 As shown, in this embodiment, the operating part is located at the lower rear side of the fingertip receiving groove 15, so that the thumb can naturally swing to contact the third operating member 242, thereby improving the convenience of operation. Moreover, since the thumb is generally in a lower position relative to the index finger when the hand is holding it, and the length of the thumb is less than the length of the index finger, the third operating member 242 can be operated by the thumb by controlling the distance between the thumb groove 14 and the third operating member 242.

[0095] In one embodiment of the present invention, the pivot connection 241 extends through the grip 12 along the side of the housing 10, and the third operating member 242 is provided at both ends of the pivot connection 241. The third operating member 242 can rotate around the pivot connection 241 along the height direction of the housing 10 to lock or unlock the movable handle 23.

[0096] Since the natural direction of thumb movement in the gripping state is generally to swing along the height direction of the outer casing 10, setting the movement mode of the third operating member 242 to rotate along the height direction of the outer casing 10 can adapt to the movement of the thumb, thereby improving the convenience of operation.

[0097] As one embodiment of the present invention, the outer casing 10 further includes a third operating member 242 disposed at the front end of the grip portion 12. The third operating member 242 is rotatably connected to the surface of the grip portion 12. The third operating member 242 is located below the end of the second operating member 21 and the end of the first operating member 22. The outer surface of the third operating member 242 protrudes from the outer surface of the grip portion 12.

[0098] In one embodiment of the present invention, the front surface of the connecting portion 13 is recessed into the main body portion 11 and the grip portion 12 to form a fingertip receiving groove 15 between the front end of the main body portion 11 and the front end of the grip portion 12. The third operating member 242 is disposed below the rear side of the fingertip receiving groove 15. The third operating member 242 is operated by the thumb, and the center of the third operating member 242 forms a third predetermined distance L3 with the thumb groove 14. The third predetermined distance L3 is between 40mm and 58mm. In this embodiment, the third predetermined distance L3 is a size adapted to the length of a human thumb.

[0099] In this embodiment, the third operating element 242 is positioned in a way that better matches the natural movement of the operator's fingers when holding the device, allowing the thumb to swing naturally to control the third operating element 242 without the need to consciously control the thumb's posture, thus improving the comfort and convenience of operation.

[0100] As one embodiment of the present invention, the operating handle includes a prompting sound component, which is at least partially disposed on the second operating member 21 and the first operating member 22, so that the second operating member 21 and the first operating member 22 emit prompting sounds during operation;

[0101] And / or, the prompting tone component is at least partially disposed on the third operating member 242, such that the third operating member 242 emits a prompting tone during operation.

[0102] In one specific implementation design, the prompting sound component may include a plurality of slots disposed on one of the operating component and the housing 10, and an elastic protrusion disposed on the other. The plurality of slots are circumferentially distributed around the rotation axis of the operating component, and the elastic protrusion is disposed opposite to the slots and can be sequentially engaged into the slots at different positions as the operating component rotates and emit a prompting sound.

[0103] In this embodiment, mutually cooperating slots and elastic protrusions are provided on the outer casing 10 and the operating component. During use, as the operating component rotates, the elastic protrusion switches between different slots, and the impact between the elastic protrusion and the side wall of the operating component produces a "click-click-click" sound. This sound provides feedback to the user's operation, making the operation more experiential. It is especially suitable for blind operation settings in the field of surgical procedures, providing doctors with clear operational prompts during surgery.

[0104] In one practical setting, the elastic protrusion may include a ball bearing and an elastic element. During installation, a pin hole is provided on the end face of the housing 10 or the operating component. The ball bearing is positioned in the pin hole by the elastic element (usually a spring) and can extend out of the pin hole under the action of the elastic element. As the operating component rotates, when the position of the ball bearing and the slot is misaligned, the ball bearing will retract into the pin hole under the action of external force. When the position of the ball bearing and the slot are aligned, the ball bearing will be locked into the slot under the action of the elastic element. Thus, during the rotation of the operating component, the impact of the ball bearing and the external component will produce a "click-click-click" sound. This sound allows the doctor to determine whether adjustment is being made without looking at the operating component, and can also understand the rotation speed of adjustment based on the frequency of the sound.

[0105] The following is in conjunction with the appendix Figures 9 to 11 This application provides a detailed description of the working state of the operating handle during use, the positional relationship between the second operating component 21, the first operating component 22, the locking component 24, and the tiger's mouth groove 14, as well as the specific movement path during operation.

[0106] See appendix Figure 9 Line d1 is the line connecting the bottom of the tiger's mouth groove 14 and the center of the second operating member 21. Line d2 in the figure is the line connecting the tiger's mouth groove 14 and the fingertip receiving groove. Since the second operating member 21 is located at the front end of the outer casing 10, it can be operated through the fingertip of the index finger. Therefore, in order to ensure that the index finger can stably contact the second operating member 21 for operation, L1 shown in the figure is set between 60mm and 79mm, which facilitates the operation of the second operating member 21 during use. When operating the second operating member 21, generally... The operation is performed using the index finger, which is nearly fully extended during operation. The tip of the index finger contacts the outer surface of the second operating component 21 to provide support, while the rear end of the index finger rests on the web of the thumb. During force application, the index finger naturally bends, creating a gap between the index finger and the outer casing 10 (in actual design, the outer diameter of the second operating component 21 can be appropriately increased to enhance the distance between the index finger and the outer casing 10 during operation). This prevents accidental activation of the first operating component 22. When the index finger pushes the second operating component 21 to rotate, the index finger can... Figure 9 Reciprocating motion within the Φ1 angle range (generally 5°~10°);

[0107] When it is necessary to operate the first operating component 22, it can still be operated with the index finger. At this time, the index finger can be bent as shown in the attached figure. Figure 10 The postures of the middle lines d3 and d4, where d3 (the dimension between the tiger's mouth groove 14 and point B in the figure) corresponds to the length of the proximal phalanx of the index finger, and d4 ( Figure 10The dimension between point B and the center of the first operating element 22 corresponds to the length of the middle phalanx of the index finger, ultimately allowing the tip of the index finger to contact the first operating element 22 and perform the operation. It can be seen that this invention facilitates user operation by placing the first operating element 22 and the second operating element 21 at a position convenient for applying force when the human index finger is naturally bent. Considering the range of motion of the index finger in the gripping state, the index finger can... Figure 10 The first operating member 22 reciprocates within an angle range of Ф2 (generally 35°~45°) with the axis of the first operating member 22 as the center line. The second set distance L2 in this invention is derived based on the length of the proximal phalanx, the length of the middle phalanx, and the natural angle between them when the index finger is in a natural bending force application state. The installation position of the first operating member 22 is determined by the setting coaxial with the mounting port 17 and the size of L2.

[0108] When it is necessary to operate the movable handle 23, the user can grip the movable handle 23 with the middle finger, ring finger, and little finger. By gripping and releasing these three fingers, the movable handle 23 can be rotated relative to the fixed handle 16, as shown in the attached figure. Figure 11 The swing range is within a medium angle of Ф4 (generally 8°~15°);

[0109] When it is necessary to operate the locking component 24, see Appendix Figure 10 Line d5 is the line connecting the thumb groove 14 and the third operating member 242. The user generally operates the rotation of the locking component 24 by using the thumb. The dimension of the third setting distance L3 of the present invention refers to the length of the thumb in its naturally extended state. In specific settings, the swing angle range of the third operating member 242 can be reasonably set to adapt to the range of thumb activity. The present invention is set so that the thumb swings within the range of angle Ф3 (generally 3°~5°).

[0110] A second aspect of the present invention discloses a surgical instrument, see appendix. Figure 12 The pliers include a pliers head assembly 30, a pliers head drive assembly 31, and an operating handle. The output end of the pliers head drive assembly 31 is connected to the pliers head assembly 30. The operating handle is the operating handle described in the first aspect. The input end of the pliers head drive assembly 31 is connected to the first operating member.

[0111] The surgical instrument in this invention is detachably connected to the outer shell 10. In order to further improve the comfort of holding, the outer surface of the outer shell 10 can be set as a smoothly transitioned curved surface structure. In addition, in order to increase the stability of holding, materials or structures that increase friction can be provided in the grip support and the thumb groove 14. The outer shell 10 of this invention is more convenient to hold, which helps to improve the user's grip experience. During long-term surgery, while maintaining the posture of the surgical instrument, it can effectively reduce hand fatigue and make the operation more effortless.

[0112] The operating handle of the surgical instrument of the present invention can be equipped with multiple operating components, such as a second operating component 21, a first operating component 22, a third operating component 242, and a movable handle 23. In use, each operating component can perform different control actions. When in use, the thumb and index finger are distributed on both sides of the outer shell 10 and can be supported by the connecting part 13 respectively, while the remaining three fingers can be supported by the movable handle 23. In this way, the entire hand is supported, making it more labor-saving.

[0113] Furthermore, during use, doctors can choose to operate the second operating component 21 and the first operating component 22 with their index finger, or operate the first operating component 22 with their thumb, operate the locking component 24 with their thumb, and operate the movable handle 23 with the other three fingers, depending on their operating habits. The division of labor is clear, and it can be operated with one hand, allowing medical staff to free up their other hand to perform other operations, which can better cope with emergencies during the operation.

[0114] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. An operating handle comprising a housing (10) and a first operating element (22) mounted on the housing (10), the housing (10) comprising a main body portion (11) and a grip portion (12), the main body portion (11) having a window (111) formed thereon, at least a portion of the first operating element (22) being exposed through the window (111), characterized in that, The main body (11) is provided with an inwardly recessed finger groove (19), which is located on the rear side of the first operating member (22). The first operating member (22) has a plurality of ridges (28) and recesses (29) distributed circumferentially. The ridges (28) are not higher than the outer surface of the main body (11), and the recesses (29) are lower than the ridges (28) and not lower than the surface of the finger groove (19).

2. The operating handle according to claim 1, characterized in that, The first operating member (22) is formed as a tapered structure with a rear diameter larger than the front diameter; And / or, the central angle of the recess (29) is greater than the central angle of the ridge (28).

3. The operating handle according to claim 1, characterized in that, At least two of the recesses (29) and at least two of the ridges (28) are exposed outside the window (111). And / or, the number of windows (111) and finger grooves (19) are both two, symmetrically distributed on both sides of the main body (11).

4. The operating handle according to claim 1, characterized in that, The width of the finger groove (19) is equal to or less than the width of the window (111); And / or, the finger groove (19) bends and extends from the rear end of the main body (11) toward the gripping part (12) along the axial direction of the main body (11).

5. The operating handle according to claim 1, characterized in that, The operating handle also includes a second operating member (21), which is arranged sequentially and spaced apart from the first operating member (22) along the axial direction of the main body (11), and the second operating member (21) and the first operating member (22) are coaxially distributed; at least part of the outer surface of the second operating member (21) is higher than the outer surface of the main body (11).

6. The operating handle according to claim 5, characterized in that, The second operating member (21) has a plurality of protrusions and recesses distributed circumferentially, the outer surface of the protrusions being higher than the outer surface of the main body (11), and the recesses being smoothly transitioned to the front end of the main body (11). And / or, the front end of the main body (11) is formed with a mounting port (17) for inserting a forceps drive assembly (31) of a surgical instrument, the second operating member (21) and the first operating member (22) are coaxially arranged with the mounting port (17) and rotatably arranged on the housing (10), and are respectively used to control the rotation and sway of the forceps assembly (30) of the surgical instrument.

7. The operating handle according to any one of claims 1-6, characterized in that, The outer shell (10) further includes a connecting portion (13) disposed between the main body (11) and the grip portion (12), the rear surface of the connecting portion (13) being recessed into the main body (11) and the grip portion (12) to form a tiger's mouth groove (14) between the rear end of the main body (11) and the rear end of the grip portion (12), the tiger's mouth groove (14) being located below the middle or the rear of the finger groove (19).

8. The operating handle according to claim 7, characterized in that, The front surface of the connecting part (13) is recessed into the main body part (11) and the grip part (12) to form a fingertip receiving groove (15) between the front end of the main body part (11) and the front end of the grip part (12); when the operating handle has a second operating member (21), the fingertip receiving groove (15) is located below between the first operating member (22) and the second operating member (21).

9. The operating handle according to claim 8, characterized in that, The distance between the front and rear of the connecting part (13) does not exceed a set distance, so that when the operator's hand and the tiger's mouth are in contact with the outer surface of the tiger's mouth groove (14), the tip of the operator's index finger can be inserted into the fingertip receiving groove (15); the depth of the tiger's mouth groove (14) is not less than a set depth, so that when the operator's hand and the tiger's mouth are in contact with the outer surface of the tiger's mouth groove (14), the rear end of the main body (11) abuts against the back of the operator's hand.

10. The operating handle according to claim 9, characterized in that, The set depth is not less than 1 / 3 of the set distance.

11. The operating handle according to claim 7, characterized in that, The surfaces of the connecting part (13), the main body part (11), and the gripping part (12) are all curved surfaces, and the three transition continuously. And / or, the side surface of the connecting part (13) is recessed into the main body part (11) and the gripping part (12), and the recessed depth of the side surface of the connecting part (13) is between 2 mm and 5 mm.

12. The operating handle according to claim 7, characterized in that, The front width of the connecting part (13) is smaller than the rear width of the connecting part (13); And / or, the extending direction of the connecting portion (13) intersects the axial direction of the main body portion (11).

13. The operating handle according to claim 7, characterized in that, When the operating handle has a second operating member (21), the bottom of the tiger mouth groove (14) forms a first set distance with the center of the second operating member (21) and forms a second set distance with the center of the first operating member (22). The first set distance L1 is between 60mm and 79mm, and the second set distance L2 is between 30mm and 45mm. And / or, the first operating element (22) is operated by the thumb or the index finger, the finger groove (19) is used to support the thumb or index finger operating the first operating element (22), and the second operating element (21) is operated by the index finger.

14. The operating handle according to claim 7, characterized in that, The outer casing (10) also includes a third operating member (242) disposed at the front end of the grip (12). The third operating member (242) is rotatably connected to the surface of the grip (12). When the operating handle has a second operating member (21), the third operating member (242) is located below the end of the second operating member (21) and the end of the first operating member (22). The outer surface of the third operating member (242) protrudes from the outer surface of the grip (12).

15. The operating handle according to claim 14, characterized in that... The front surface of the connecting part (13) is recessed into the main body part (11) and the grip part (12) to form a fingertip receiving groove (15) between the front end of the main body part (11) and the front end of the grip part (12). The third operating member (242) is disposed below the rear side of the fingertip receiving groove (15). And / or, the third operating member (242) is operated by the thumb, and the center of the third operating member (242) forms a third set distance with the thumb groove (14), the third set distance L3 being between 40mm and 58mm.

16. The operating handle according to claim 14, characterized in that, The operating handle includes a prompting tone component, which is at least partially disposed on the second operating member (21) and the first operating member (22), so that the second operating member (21) and the first operating member (22) emit prompting tones during operation; And / or, the prompting tone component is at least partially disposed on the third operating member (242), such that the third operating member (242) emits a prompting tone during operation.

17. A surgical instrument comprising a forceps head assembly (30), a forceps head drive assembly (31), and an operating handle, wherein the output end of the forceps head drive assembly (31) is connected to the forceps head assembly (30), characterized in that, The operating handle is an operating handle as described in any one of claims 1 to 16, and the input end of the clamp drive assembly (31) is connected to the first operating member (22).

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