Surgical instrument

Abstract

The application discloses a surgical instrument, comprising a shaft assembly and a handle assembly. The shaft assembly extends along a first direction and has a proximal end and a distal end opposite to each other. The handle assembly is connected with the proximal end of the shaft assembly and has a first side and a second side opposite to each other in a second direction intersecting with the first direction, wherein the handle assembly comprises a housing and at least one optical component, the optical component comprises an indicator pair arranged on the housing, the indicator pair is configured to emit visible light and comprises two indicators, one of the two indicators is located on the first side and the other is located on the second side. By arranging the indicator pair and arranging the two indicators in the indicator pair on the opposite sides of the handle assembly respectively, the indicators are easier to be seen by the operator, and the convenience of the operation of the surgical instrument is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of medical instruments, and in particular to a surgical instrument. Background Art

[0002] The stapler is an important tool used in surgical operations. It uses the principle of a stapler to achieve fast, accurate, and bloodless anastomosis of target tissues, significantly improving surgical efficiency and reducing patient pain and postoperative recovery time.

[0003] With the continuous advancement of science and technology, electric staplers are also developing continuously. Today, electric staplers are becoming smaller, smarter, and more multifunctional, more precisely adapting to the needs of various complex surgeries. At the same time, the materials and designs of staplers are constantly improving to provide a safer and more comfortable surgical experience. Summary of the Invention

[0004] According to an embodiment of the present disclosure, a surgical instrument is provided, comprising: a shaft assembly and a handle assembly. The shaft assembly extends along a first direction and has a proximal end and a distal end opposite to each other; the handle assembly is connected to the proximal end of the shaft assembly and has a first side and a second side opposite to each other in a second direction intersecting the first direction, wherein the handle assembly comprises: a housing and at least one optical component, the optical component comprising an indicator pair disposed on the housing, the indicator pair being configured to emit visible light and comprising two indicators, one of the two indicators being located on the first side and the other being located on the second side.

[0005] In at least some embodiments, the optical component further comprises a light source and a light guide assembly located in the housing; the light source is configured to generate incident light; the light guide assembly comprises a light guide and a light splitter, the light guide being configured to guide the incident light into the light splitter; the light splitter comprises a first exit end located on the first side and a second exit end located on the second side, the one indicator being located at the first exit end, and the other indicator being located at the second exit end; wherein the light splitter is configured to: split the incident light into a first portion of visible light directed to the first exit end and a second portion of visible light directed to the second exit end, so that the one indicator emits the first portion of visible light and the other indicator emits the second portion of visible light.

[0006] In at least some embodiments, the light guide includes a light guide column extending along a third direction, the third direction being perpendicular to the first direction and the second direction; the light splitting member includes a light splitting column extending in a plane perpendicular to the third direction, the light splitting column being provided with a recess, a first reflecting surface and a second reflecting surface being provided on a side of the recess facing the light guide column, wherein the incident light is incident on the recess through the light guide column, the first reflecting surface being configured to reflect a portion of the incident light to form the first portion of visible light, and the second reflecting surface being configured to reflect another portion of the incident light to form the second portion of visible light.

[0007] In at least some embodiments, the handle assembly further includes a handle core configured to be removable from the housing, the handle core including the light source and at least part of the light guide, such that the light source and at least part of the light guide are removed from the housing for reuse.

[0008] In at least some embodiments, the handle assembly further includes a driving component fixed in the housing and including a driving rod configured to move linearly along the first direction; a control component provided in the handle core and including a motor and a control circuit, wherein the motor has a power output shaft configured to provide driving force to the driving component, and the control circuit is connected to the motor and configured to provide a driving signal to the motor, wherein the control circuit includes a circuit board, and the light source and at least part of the light guide are mounted on the circuit board.

[0009] In at least some embodiments, the handle assembly further includes a support plate provided in the housing, the support plate including a support plate extending in a plane defined by the first direction and the second direction, the support plate being configured to support the light guide assembly.

[0010] In at least some embodiments, the handle assembly includes a plurality of optical components, the plurality of optical components including a plurality of light guide assemblies, the plurality of light guide assemblies including a plurality of light splitting members, and the support plate includes a plurality of slots arranged along the first direction, the plurality of slots respectively accommodating the plurality of light splitting members.

[0011] In at least some embodiments, the slot includes a bottom and a sidewall connected to the bottom, a height of the sidewall relative to the support plate being greater than or equal to a height of the light splitting member relative to the support plate.

[0012] In at least some embodiments, the sidewall includes a light blocking material.

[0013] In at least some embodiments, the bottom is provided with a through hole penetrating through the support plate, and the light guide is configured to be exposed from the through hole.

[0014] In at least some embodiments, the support plate includes a first end and a second end opposite to each other in the first direction, the first end is close to the distal end of the shaft assembly, the second end is away from the distal end of the shaft assembly, and the first end is provided with a card slot; the handle assembly also includes a finger-shaped connector arranged in the housing, and the finger-shaped connector is inserted into the card slot to transmit electrical signals.

[0015] In at least some embodiments, the handle assembly includes a plurality of optical components, wherein the plurality of optical components includes a plurality of indicator pairs, the plurality of indicator pairs being spaced apart in the first direction and configured to respectively emit visible light of a plurality of different colors.

[0016] In at least some embodiments, the plurality of optical components includes three optical components, the three optical components include three indicator pairs, and the three indicator pairs are spaced apart in the first direction.

[0017] In at least some embodiments, the three indicator pairs are configured to respectively emit three different colors of visible light, and the three different colors of visible light are used to respectively indicate different information associated with the surgical instrument.

[0018] In at least some embodiments, the three optical components include a first optical component, a second optical component, and a third optical component, and the three indicator pairs include a first indicator pair, a second indicator pair, and a third indicator pair, the first indicator pair being configured to emit a first visible light and including a first indicator located on the first side and a second indicator located on the second side; the second indicator pair being configured to emit a second visible light and including a third indicator located on the first side and a fourth indicator located on the second side; the third indicator pair being configured to emit a third visible light and including a fifth indicator located on the first side and a sixth indicator located on the second side; wherein the first indicator, the third indicator, and the fifth indicator are spaced apart in the first direction, and the second indicator, the fourth indicator, and the sixth indicator are spaced apart in the first direction.

[0019] In at least some embodiments, the first optical component further includes a first light source located in the housing, the first light source being configured to generate a first incident light; the second optical component further includes a second light source located in the housing, the second light source being configured to generate a second incident light; the third optical component further includes a third light source located in the housing, the third light source being configured to generate a third incident light; wherein the first light source, the second light source, and the third light source are spaced apart in the second direction.

[0020] In at least some embodiments, the handle assembly includes a drive control unit, which includes a circuit board and a controller disposed on the circuit board, and the first light source, the second light source, and the third light source are all disposed on the circuit board.

[0021] In at least some embodiments, the first optical component also includes a first light guide component located in the housing, the first light guide component includes a first light guide and a first light splitter, and the first light guide is configured to guide the first incident light into the first light splitter; the second optical component also includes a second light guide component located in the housing, the second light guide component includes a second light guide and a second light splitter, and the second light guide is configured to guide the second incident light into the second light splitter; the third optical component also includes a third light guide component located in the housing, the third light guide component includes a third light guide and a third light splitter, and the third light guide is configured to guide the third incident light into the third light splitter; wherein, the first light guide, the second light guide and the third light guide are spaced apart in the second direction, and the first light splitter, the second light splitter and the third light splitter are spaced apart in the first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0023] Figure 1 Schematic diagram of the structure of a surgical instrument according to an embodiment of the present disclosure;

[0024] Figure 2 Schematic diagram of the structure of the optical component and the circuit board according to the embodiment of the present disclosure;

[0025] Figure 3 for Figure 2 A partial enlarged schematic diagram of an optical component;

[0026] Figure 4 Schematic diagram of the light guide path of an embodiment of the present disclosure;

[0027] Figure 5 Schematic diagram of the light splitting path of the third light splitting element in an embodiment of the present disclosure;

[0028] Figure 6 For the Figure 5 Schematic diagram of the cross section taken along line aa;

[0029] Figure 7 Schematic diagram of the structure of three light splitting components in an embodiment of the present disclosure;

[0030] Figure 8 This is a schematic structural diagram of the handle core according to an embodiment of the present disclosure;

[0031] Figure 9 is another structural schematic diagram of a surgical instrument according to an embodiment of the present disclosure;

[0032] Figure 10 It is a block diagram showing the connection relationship between the various components of the surgical instrument according to the embodiment of the present disclosure.

[0033] Figure 11A This is a schematic diagram of the internal structure of the handle assembly according to an embodiment of the present disclosure;

[0034] Figure 11B for Figure 11A A partial enlarged schematic diagram;

[0035] Figure 12A is a top view of a support plate according to an embodiment of the present disclosure;

[0036] Figure 12B is a bottom view of a support plate according to an embodiment of the present disclosure;

[0037] Figure 13 Schematic diagram of the structure of the surgical instrument disclosed in the present invention. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second" and similar terms used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and similar terms mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] The surgical instrument disclosed herein may include an electric stapler for suturing and cutting tissue. The working principle of the stapler is similar to that of a stapler, that is, firing multiple staples into the tissue to achieve a tight suturing.

[0041] Depending on the specific application environment, electric staplers can be divided into various types, such as circular (also called annular) staplers or linear staplers. Figure 13 FIG. 1 is a schematic diagram of the structure of the surgical instrument disclosed in the present invention. Figure 13 As shown, the electric stapler generally includes a handle assembly 91, a shaft assembly 92, and an end effector 93. The end effector 93 includes, for example, a staple cartridge 931 and an anvil 932. The staple cartridge 931 contains multiple rows of staples. During the process of suturing the target tissue, the staple cartridge 931 and the anvil 932 are closed to clamp the target tissue, and the staple pusher pushes the staples to eject the staples from the staple cartridge 931. Under the joint extrusion of the staple cartridge 931 and the anvil 932, the staples are closed and formed to suturing the target tissue.

[0042] Figure 13 In the embodiment, the handle assembly 91 includes a detachable connecting portion 911 and a handle 912. An indicator light 94 is provided on the rear side of the handle 912, i.e., on the side closest to the operator. The indicator light 94 emits visible light to indicate the status of the stapler. Since the connecting portion 911 protrudes rearward, it easily blocks the indicator light, making it difficult for the operator to see the indicator light while operating the stapler.

[0043] According to an embodiment of the present disclosure, a surgical instrument is provided, comprising: a shaft assembly and a handle assembly. The shaft assembly extends along a first direction and has a proximal end and a distal end opposite to each other; the handle assembly is connected to the proximal end of the shaft assembly and has a first side and a second side opposite to each other in a second direction intersecting the first direction, wherein the handle assembly comprises: a housing and at least one optical component, the optical component comprising an indicator pair disposed on the housing, the indicator pair being configured to emit visible light and comprising two indicators, one of the two indicators being located on the first side and the other being located on the second side.

[0044] In the surgical instrument provided by the above-mentioned embodiment of the present disclosure, by setting an indicator pair (for example, a pair of indicators), and setting the two indicators in the indicator pair on opposite sides of the handle assembly, the indicator is easier for the operator to see, thereby improving the convenience of operating the surgical instrument.

[0045] The present disclosure will be described below with reference to specific embodiments. In order to keep the following description of the embodiments of the present disclosure clear and concise, detailed description of known functions and known components can be omitted. When any component of the embodiments of the present disclosure appears in more than one figure, the component can be denoted by the same reference numeral in each figure.

[0046] Figure 1 Structure diagram of a surgical instrument according to an embodiment of the present disclosure; Figure 2 Structure diagram of an optical component and a circuit board according to an embodiment of the present disclosure; Figure 3 Structure diagram of an optical component according to an embodiment of the present disclosure; Figure 2 Enlarged diagram of a part of the optical component according to an embodiment of the present disclosure; Figure 4 Light guide optical path diagram according to an embodiment of the present disclosure.

[0047] With reference to Figures 1 to 4 , the surgical instrument provided by the embodiments of the present disclosure includes a shaft assembly 1, a handle assembly 2, and an end effector (see the end effector shown in Figure 13 ). For example, the shaft assembly 1 extends along a first direction (for example, the x direction shown in the figure) and has a proximal end 1A and a distal end 1B opposite to each other. The handle assembly 2 is connected to the proximal end 1A of the shaft assembly 1 and has a first side S1 and a second side S2 opposite to each other in a second direction (for example, the y direction shown in the figure) intersecting the x direction. In some embodiments, the shaft assembly 1 and the handle assembly 2 are assembled together when leaving the factory and are discarded after use. In this document, “proximal end” and “proximal side” refer to the side close to the operator, and “distal end” and “distal side” refer to the side away from the operator. “Intersecting” means that the x direction and the y direction are not parallel, for example, the angle between them is less than or equal to 90 degrees. The embodiments of the present disclosure are described taking the case where the x direction and the y direction are perpendicular to each other as an example.

[0048] For example, the handle assembly 2 includes a housing 10, which can be configured as a handle housing 101 suitable for holding by a hand and a connecting portion housing 102 connected to the shaft assembly 1. For example, the connecting portion housing 102 is provided with a driving component 24 (for example, as shown in Figure 11A and Figure 10 ), which can drive a firing rod (not shown) in the shaft assembly 1 to move linearly in the x direction. Referring to Figure 11A , the driving component 24 includes a driving rod 241 and a transmission gear 242 cooperating with the driving rod 241, for example, and rotation of the transmission gear 242 can drive the driving rod 241 to move linearly in the x direction. For example, when the transmission gear 242 rotates in a first rotation direction (for example, clockwise), the driving rod 241 can be driven to move proximally; when the transmission gear 242 rotates in a second rotation direction (for example, counterclockwise) opposite to the first rotation direction, the driving rod 241 can be driven to move distally.

[0049] In the handle assembly of the related surgical instrument, the handle housing 101 and the connecting portion housing 102 are provided as a split structure. For example, Figure 13 In the figure, the connecting part 911 and the handle 912 are detachably connected to each other, and the connecting part shell 102 and the handle shell 101 are split structures. Since the handle 912 and the connecting part 911 are mechanically connected, when there is a gap at the connection between the two, the physical connection or electrical connection between the handle 912 and the connecting part 911 will be unstable. In this way, it is easy for the connecting part 911 to shake slightly relative to the handle 912 during the operation, which will further cause problems such as inaccurate position of the end effector relative to the target area, affecting the suturing effect.

[0050] In the embodiment of the present disclosure, the handle housing 101 and the connecting portion housing 102 are configured as an integral structure, that is, the handle housing 101 and the connecting portion housing 102 are a one-piece housing made of the same material (e.g., Figure 9 As shown in FIG, the problem of unstable connection between the handle 912 and the connecting portion 911 can be avoided, and the manufacturing process can be simplified. Therefore, in the embodiment of the present disclosure, the handle housing 101 and the connecting portion housing 102 of the integrated structure are constructed to be disposable (i.e., discarded after use), and the handle core 3 (see FIG. 101 ) inserted into the handle housing 101 is Figure 8 As shown and described in detail later) is constructed to be reusable.

[0051] For example, the handle assembly 2 includes at least one optical component, comprising an indicator pair disposed on the housing 10. The indicator pair is configured to emit visible light and includes two indicators, one located on the first side S1 and the other located on the second side S2. This configuration allows the two indicators in the pair to emit the same visible light, thereby transmitting the same optical signal. For example, the handle assembly 2 includes multiple optical components, including a first optical component 21, a second optical component 22, and a third optical component 23. The first optical component 21 includes a first indicator pair 210, configured to emit a first visible light and including a first indicator LG1 located on the first side S1 and a second indicator LG2 located on the second side S2. The second indicator pair 220 is configured to emit a second visible light and includes a third indicator LG3 located on the first side S1 and a fourth indicator LG4 located on the second side S2. The third indicator pair 230 is configured to emit a third visible light and includes a fifth indicator LG5 located on the first side S1 and a sixth indicator LG6 located on the second side S2.

[0052] Compared to Figure 13Regarding the position of the middle indicator, the embodiment of the present disclosure provides two indicators in pairs (e.g., a first indicator pair 210, a second indicator pair 220, and a third indicator pair 230) and positions the two indicators on the first side S1 and the second side S2, respectively. This not only prevents the indicators from being blocked by other components on the surgical instrument, but also makes it easier for the operator to observe the indicators from both sides, thereby further improving the convenience of operating the instrument.

[0053] For example, the first indicator pair 210, the second indicator pair 220, and the third indicator pair 230 are spaced apart in the x-direction and are configured to emit three different colors of visible light, respectively. In some embodiments, the first visible light is red light, the second visible light is green light, and the third visible light is blue light. By spacing the three indicator pairs apart from each other, mutual interference of the three visible lights can be avoided; by setting visible lights of different colors, it is convenient for the operator to distinguish them when observing. It will be understood that the embodiments of the present disclosure are described using red light, green light, and blue light as examples. In other embodiments, other colors may also be used, and the embodiments of the present disclosure are not limited to this. In addition, the color order of the above-mentioned first indicator pair 210, the second indicator pair 220, and the third indicator pair 230 is also schematic. In other embodiments, the above-mentioned color order may also be adjusted.

[0054] For example, the first visible light, the second visible light, and the third visible light are configured to indicate different information. In some embodiments, the first visible light is used to indicate the power level of the surgical instrument, the second visible light is used to indicate the operating status of the surgical instrument, and the third visible light is used to indicate the connection status of the surgical instrument (e.g., the connection status between the handle core and the drive component). In this way, the operator can quickly obtain different information represented by different colors of visible light.

[0055] For example, the optical component further includes a light source and a light guide assembly located in the housing 10. The light source is configured to generate incident light. The light guide assembly includes a light guide and a light splitter, and the light guide is configured to guide the incident light into the light splitter. For example, the first optical component 21 further includes a first light source 212 located in the housing 10, and the first light source 212 is configured to generate a first incident light L1. The first optical component 21 further includes a first light guide assembly 214 located in the housing 10, and the first light guide assembly 214 includes a first light guide 214a and a first light splitter 214b, and the first light guide 214a is configured to guide the first incident light L1 into the first light splitter 214b. For another example, the second optical component 22 further includes a second light source 222 located in the housing 10, the second light source 222 being configured to generate a second incident light L2; the second optical component 22 further includes a second light guide assembly 224 located in the housing 10, the second light guide assembly 224 including a second light guide 224a and a second light splitter 224b, the second light guide 224a being configured to guide the second incident light L2 into the second light splitter 224b. For another example, the third optical component 23 further includes a third light source 232 located in the housing 10, the third light source 232 being configured to generate a third incident light L3; the third optical component 23 further includes a third light guide assembly 234 located in the housing 10, the third light guide assembly 234 including a third light guide 234a and a third light splitter 234b, the third light guide 234a being configured to guide the third incident light L3 into the third light splitter 234b. In the embodiment of the present disclosure, by providing each light source with a corresponding light guide and light splitter, light emitted by different light sources can be transmitted independently, thereby avoiding light loss or crosstalk in the propagation path.

[0056] The light splitting path and specific structure of the light splitting element will be described in detail below by taking the third light splitting element 234b as an example.

[0057] Figure 5 Schematic diagram of the light splitting path of the third light splitting element of the embodiment of the present disclosure. Figures 1 to 5The third incident light L3 emitted by the third light source 232 first enters the third light guide 234a and then enters the third light splitter 234b. The third light splitter 234b includes a first output end E1 located on the first side S1 and a second output end E2 located on the second side S2. The fifth indicator G5 is located at the first output end E1, and the sixth indicator G6 is located at the second output end E2. The third light splitter 234b is configured to split the third incident light L3 into a first portion of visible light L31 directed to the first output end E1 and a second portion of visible light L32 directed to the second output end E2, so that the fifth indicator G5 emits the first portion of visible light L31 and the sixth indicator G6 emits the second portion of visible light L32. Thus, the third beam splitter 234b can be used in the embodiment of the present disclosure to split a third incident light beam L3 into two visible light beams L31 and L32, thereby further ensuring that the two visible light beams L31 and L32 of the same color are emitted from the fifth indicator G5 and the sixth indicator G6, respectively.

[0058] Figure 6 For the Figure 5 Schematic diagram of the cross section taken along line aa; Figure 7 Schematic diagram of the structure of three light splitters in the embodiment of the present disclosure. Figures 1 to 7 The third light guide 234a includes a third light guide column DZ3 extending along a third direction (e.g., the z-direction shown in the figure), which is, for example, perpendicular to the x- and y-directions. The third light splitter 234b includes a third light splitter column FZ3 extending in an xy plane perpendicular to the z-direction. The third light splitter column FZ3 is provided with a third recessed portion AX3. A first reflective surface RS1 and a second reflective surface RS2 are provided on the side of the third recessed portion AX3 facing the third light guide column DZ3. The third incident light L3 enters the third recessed portion AX3 via the third light guide column DZ3. The first reflective surface RS1 is configured to reflect a portion of the third incident light L3 to form a first portion of visible light L31. The second reflective surface RS2 is configured to reflect another portion of the third incident light L3 to form a second portion of visible light L32. Thus, by providing a third recessed portion AX3 having a first reflective surface RS1 and a second reflective surface RS2 on the third beam splitter FZ3, it is possible to split a beam of third incident light L3 into a first portion of visible light L31 and a second portion of visible light L32 without adding additional space, thereby causing the first portion of visible light L31 to be emitted from the first indicator LG1 and the second portion of visible light L32 to be emitted from the second indicator LG2. It will be understood that the structure of the beam splitter in the embodiment of the present disclosure is merely illustrative, and other beam splitters capable of splitting a beam of third incident light L3 into two beams of visible light are also included in the embodiment of the present disclosure.

[0059] In the embodiment of the present disclosure, the second light guide 224a and the third light guide 234a have similar structures, and the second light splitter 224b and the third light splitter 234b have similar structures, thereby simplifying the manufacturing process. Figure 3 、 Figure 4 and Figure 7 For example, the second light guide 224a includes a second light guide column DZ2 extending along the z-direction. The second light splitting element 224b includes a second light splitting column FZ2 extending in the xy plane. The second light splitting column FZ2 is provided with a second recessed portion AX2. The side of the second recessed portion AX2 facing the second light guide column DZ2 is also provided with a first reflective surface (not shown) and a second reflective surface (not shown). The second incident light L2 is incident on the second recessed portion AX2 through the second light guide column DZ2. The first reflective surface is configured to reflect a portion of the second incident light L2 to form a first portion of visible light (not shown). The second reflective surface is configured to reflect another portion of the second incident light L2 to form a second portion of visible light (not shown). In this way, by providing a second recessed portion AX2 having a first reflecting surface and a second reflecting surface on the second beam splitting column FZ2, a beam of second incident light L2 can be split into a first portion of visible light and a second portion of visible light without increasing additional space, and the first portion of visible light and the second portion of visible light can be emitted from the third indicator LG3 and the fourth indicator LG4 respectively.

[0060] In the embodiment of the present disclosure, the first light guide 214a and the third light guide 234a have similar structures, and the second light splitter 214b and the third light splitter 234b have similar structures, thereby simplifying the manufacturing process. Figure 3 、 Figure 4 and Figure 7 For example, the first light guide 214a includes a first light guide column DZ1 extending along the z-direction. The first light splitter 214b includes a first light splitter column FZ1 extending in the xy plane. The first light splitter column FZ1 is provided with a first recessed portion AX1. The side of the first recessed portion AX1 facing the first light guide column DZ1 is also provided with a first reflective surface (not shown) and a second reflective surface (not shown). The first incident light L1 is incident on the first recessed portion AX1 through the first light guide column DZ1. The first reflective surface is configured to reflect a portion of the first incident light L1 to form a first portion of visible light (not shown), and the second reflective surface is configured to reflect another portion of the first incident light L1 to form a second portion of visible light (not shown). In this way, by providing the first recessed portion AX1 having the first reflective surface and the second reflective surface on the first light splitter column FZ1, it is possible to split a beam of first incident light L1 into two beams of visible light without adding additional space, thereby allowing the first portion of visible light and the second portion of visible light to be emitted from the third indicator LG3 and the fourth indicator LG4, respectively.

[0061] For example, refer to Figure 4The first light source 212, the second light source 222, and the third light source 232 are spaced apart in the y direction. This allows for a more compact overall structure of the three light sources while avoiding mutual interference among the three light sources. In some embodiments, the first light source 212, the second light source 222, and the third light source 232 are LED lights.

[0062] For example, refer to Figures 1 to 7 The first light guide member 214a, the second light guide member 224a and the third light guide member 234a are spaced apart in the y direction. In this way, the overall structure of the three light guide members can be made more compact while guiding light separately.

[0063] For example, refer to Figure 7 The first beam splitter 214b, the second beam splitter 224b and the third beam splitter 234b are spaced apart in the x-direction. In this way, the first indicator pair 210, the second indicator pair 220 and the third indicator pair 230 are spaced apart in the x-direction. Furthermore, while ensuring that the three indicator pairs emit visible light of different colors, the overall structure of the three optical components is made more compact and the internal space of the handle assembly occupied is smaller.

[0064] For example, the first indicator LG1, the third indicator LG3 and the fifth indicator LG5 are spaced apart in the x direction, and the second indicator LG2, the fourth indicator LG4 and the sixth indicator LG6 are spaced apart in the x direction. In this way, light emitted by three adjacent indicators on the same side can be prevented from interfering with each other.

[0065] Any light guide column in the embodiments of the present disclosure may include acrylic material, and any light splitter may also include acrylic material. In addition, those skilled in the art may provide one or more reflective surfaces in the light guide column or light splitter column as required by the propagation direction of the light path, and the present disclosure does not limit this.

[0066] Figure 8 This is a schematic structural diagram of the handle core according to an embodiment of the present disclosure; Figure 9 is another structural schematic diagram of a surgical instrument according to an embodiment of the present disclosure; Figure 10 It is a block diagram showing the connection relationship between the various components of the surgical instrument according to the embodiment of the present disclosure.

[0067] Reference Figures 1 to 10As shown, the handle assembly 2 also includes a handle core 3, which is configured to be removable from the housing 10. For example, the handle housing 101 includes an end opening TH at its bottom end and a cover 103 configured to close the opening TH. The cover 103 is rotatably connected to the end opening TH so as to rotate between an open position and a closed position. In actual use, the handle core 3 is first inserted into the handle housing 101 through the end opening TH, and then the end opening TH is closed using the cover 103. At this time, the surgical instrument is in a state to be used. When the surgical instrument is finished using, the cover 103 can be reopened, and the handle core 3 can be taken out of the handle housing 101 for next use.

[0068] It should be noted that Figure 13 The handle 912 is also provided with a core (not shown), and the handle 912 is a reusable component, while the connecting portion 911 and the shaft assembly 92 are disposable components. During the use of the surgical instrument 9, after each use, the handle 912 needs to be removed and sterilized with high-temperature steam to ensure that the outer surface of the handle 912 will not be contaminated with bacteria during the next use, thereby reducing the risk of surgical infection.

[0069] However, in the embodiment of the present disclosure, since the handle shell 101 and the connecting portion shell 102 are configured as an integrated structure, that is, a one-piece shell and is disposable, after the handle core 3 built into the handle shell 101 is taken out, only simple disinfection (such as wiping its surface with alcohol) is required, and no high-temperature steam disinfection is required, which not only simplifies the disinfection operation, but also further reduces the risk of bacteria on the surface of the instrument, so that the handle core 3 can be used repeatedly under lower disinfection conditions or without disinfection.

[0070] For example, the handle core 3 includes a light source and at least a portion of a light guide, allowing the light source and at least a portion of the light guide to be removed from the housing 10 for reuse. In the disclosed embodiment, the indicator pair and the light splitter are both fixedly mounted in the housing 10 and are disposable. If the light source, light guide, light splitter, and indicator pair were all fixedly mounted in the housing 10, the cost of the surgical instrument would be high. By incorporating the light source and at least a portion of the light guide into the handle core 3, the cost of the surgical instrument can be reduced, thereby alleviating the financial burden on the patient.

[0071] In some embodiments, such as Figure 4 and Figure 8As shown, for example, the handle core 3 includes a first light source 212, a second light source 222, and a third light source 232, as well as a first light guide column DZ1, a second light guide column DZ2, and a third light guide column DZ3. When the handle core 3 is removed from the housing 10, the first light source 212, the second light source 222, and the third light source 232, as well as the first light guide column DZ1, the second light guide column DZ2, and the third light guide column DZ3 are also removed from the housing 10, thereby enabling reuse.

[0072] For example, the handle assembly 2 further includes a drive component 24 and a control component 30. The drive component 24 is fixed to the housing. For example, the drive component 24 includes a transmission mechanism, which includes, for example, a drive rod 21 and a transmission gear 241. The control component 30 is disposed within the handle core 3 and includes a motor 311 and a control circuit 312. The motor 311 has a power output shaft 321 configured to provide driving force to the drive component 24. The control circuit 312 is connected to the motor 311 and configured to provide a drive signal to the motor 311. For example, when the motor 311 receives the drive signal, the power output shaft 321 rotates along its axis, thereby driving the drive gear 243 to rotate. Since the drive gear 243 meshes with the transmission gear 242, the transmission gear 242 rotates accordingly, thereby driving the drive rod 241 to perform linear motion in the x-direction. For example, the handle assembly 2 further includes a power source 32 disposed in the handle core 3 , which supplies power to the control components and includes a battery assembly, which includes, for example, a rechargeable battery.

[0073] For example, the control circuit 312 includes a circuit board PCB (such as Figure 2 As shown in FIG1 , the light source and at least part of the light guide are mounted on the circuit board PCB. By mounting the light source and at least part of the light guide on the circuit board PCB, it is not only beneficial to connect the light source with the wires on the circuit board PCB, but also improves the stability of the light source and at least part of the light guide. Moreover, it can make the structure of the handle core more compact, which is conducive to miniaturization design. Figure 4 As shown, the first light source 212 , the second light source 222 , and the third light source 232 , as well as the first light guide rod DZ1 , the second light guide rod DZ2 , and the third light guide rod DZ3 are all fixed on the circuit board PCB.

[0074] Figure 11A This is a schematic diagram of the internal structure of the handle assembly according to an embodiment of the present disclosure; Figure 11B for Figure 11A A partial enlarged schematic diagram; Figure 12A is a top view of a support plate according to an embodiment of the present disclosure; Figure 12B This is a bottom view of the support plate of an embodiment of the present disclosure.

[0075] For example, referring to FIG. 1 1, Figures 1 to 12B As shown, the handle assembly 2 further includes a support plate 40 disposed in the housing 10, the support plate 40 extending, for example, in an xy plane defined by an x direction and a y direction, the support plate 40 configured to support the light guide assemblies, for example, the first light guide assembly 214, the second light guide assembly 224, and the third light guide assembly 234.

[0076] Figure 11B In some embodiments, the support plate 40 includes a first side S1 1 opposite a second side S12 in the z direction, the first side S1 1 proximal to the circuit board PCB, the second side S12 distal to the circuit board PCB, the first side S1 1 and the second side S12 being, for example, the upper side and the lower side shown in the figures, respectively. Figure 12A FIG. 1 1 shows the structure viewed from the first side S1 1 of the support plate 40. Figure 12B FIG. 12 shows the structure viewed from the second side S12 of the support plate 40.

[0077] For example, referring to FIG. 1 1, Figures 11A to 12B The support plate 40 includes a plurality of slots 410 (for example, three shown in the figures) arranged along the x direction x, the three slots 410 respectively accommodating three light splitting pieces, for example, the first light splitting piece 214b of the first light guide assembly 214, the second light splitting piece 224b of the second light guide assembly 224, and the third light splitting piece 234b of the third light guide assembly 234, so as to function to fix and support the three light splitting pieces.

[0078] For example, each slot 410 includes a bottom 413 and side walls 41 1, 412 connected to the bottom 413, the side walls 41 1, 412 having a height relative to the support plate 40 greater than or equal to a height of any one of the first light splitting piece 214b, the second light splitting piece 224b, and the third light splitting piece 234b relative to the support plate 40. In this way, the first visible light, the second visible light, and the third visible light respectively transmitted by the first light splitting piece 214b, the second light splitting piece 224b, and the third light splitting piece 234b can be prevented from interfering with each other. For example, the side walls 41 1, 412 include light blocking material, thereby further preventing the three visible lights transmitted by the three light splitting pieces from interfering with each other. For another example, the bottom 413 also includes light blocking material, thereby preventing the three visible lights transmitted by the three light splitting pieces from irradiating into structures below the support plate. In some embodiments, the support plate 40 is made of light blocking material, thereby preventing the three visible lights from irradiating to other components including the circuit board PCB.

[0079] For example, the bottom 413 of each slot 410 is provided with a through hole 42 penetrating through the support plate 40, the light guide piece being configured to expose from the through hole 42, thereby making it more convenient for light from below the support plate 40 to enter the light guide piece. As shown in FIG. 1 1, Figure 12BAs shown, the first light guide member 214a, the second light guide member 224a and the third light guide member 234a are respectively exposed from the three through holes 42, thereby facilitating the first incident light L1 to enter the first light guide member 214a, the second incident light L2 to enter the second light guide member 224a, and the third incident light L3 to enter the third light guide member 234a.

[0080] For example, the support plate 40 includes a first end 40A and a second end 40B opposite to each other in the x-direction. In the x-direction, the first end 40A is close to the shaft assembly 1, and the second end 40B is away from the shaft assembly 1. The first end 40A is provided with a card slot 43. The handle assembly 2 also includes a finger connector (not shown) provided in the housing 10. The finger connector is provided in the card slot 43 to transmit electrical signals. When the handle core 3 is inserted into the handle housing, the finger connector can be inserted into a slot (such as Figure 8 The slot 331 shown in the figure is used to realize the electrical connection between the finger connector and the control circuit to realize signal transmission. The finger connector is, for example, a gold finger.

[0081] In the related art, a pin header with multiple pins (e.g., a dozen or twenty) is generally used to achieve electrical connection with the control circuit to transmit the control circuit's signals. However, the pin header not only takes up a lot of space, but is also difficult to align during insertion, and the operator needs to be under observation to operate. Compared to the pin header method, the finger connector used in the embodiment of the present disclosure not only saves space but also allows for blind insertion (i.e., it does not require operator observation), thereby achieving quick insertion and removal while ensuring accurate insertion position.

[0082] For example, Figure 11A As shown, the PCB includes a first side (e.g., the left side in the figure) and a second side (e.g., the right side in the figure) that face away from each other in the thickness direction. In the x-direction, the first side is closer to the shaft assembly, while the second side is farther away from the shaft assembly. The light source and at least a portion of the light guide are mounted on the second side of the PCB, and the slot 331 of the support plate 40 is disposed on the first side of the PCB. This allows full utilization of the interior space of the handle, improving internal space utilization and thereby reducing the overall height of the handle assembly.

[0083] In the disclosed embodiment, the support plate 40 is provided to, on the one hand, secure and support the optical components (particularly the light guide). Furthermore, since the support plate 40 is fixed within the housing 10, it is prevented from shaking during use of the device, thereby also ensuring that the light guide does not shake during use. Furthermore, the provision of a slot 43 on the support plate provides space for the finger connector, enabling blind insertion between the handle core 3 and the drive component 24 while also reducing internal space requirements.

[0084] The surgical instrument provided by the embodiment of the present disclosure has the advantages that the indicators are arranged in pairs, and the two indicators in each pair are arranged on opposite sides of the handle assembly, so that the indicators are easier to be seen by the operator, and the convenience of the surgical instrument is improved.

[0085] In this document, the following points need to be noted:

[0086] (1) The drawings of the embodiment of the present disclosure only involve the structures involved in the embodiment of the present disclosure, and other structures can be referred to the general design.

[0087] (2) In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0088] (3) The above only describes the exemplary embodiments of the present disclosure, and is not used to limit the protection scope of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. A surgical instrument comprising: a shaft assembly extending in a first direction and having a proximal end and a distal end opposite each other; and a handle assembly connected to the proximal end of the shaft assembly and having a first side and a second side opposite to each other in a second direction intersecting the first direction, wherein the handle assembly comprises: a housing and three optical components, the optical components comprising an indicator pair disposed on the housing, the indicator pair being configured to emit visible light and comprising two indicators, one of the two indicators being located on the first side and the other being located on the second side, The three optical components include a first optical component, a second optical component, and a third optical component, wherein the first optical component includes a first light source and a first light guide component located in the housing, and the first light source is configured to generate a first incident light; the second optical component includes a second light source and a second light guide component located in the housing, and the second light source is configured to generate a second incident light; the third optical component includes a third light source and a third light guide component located in the housing, and the third light source is configured to generate a third incident light; Wherein, the first light guide assembly includes a first light guide column extending along a third direction, the second light guide assembly includes a second light guide column extending along the third direction, and the third light guide assembly includes a third light guide column extending along a third direction, and the third direction is perpendicular to the first direction and the second direction; Wherein, the handle assembly further comprises: The handle core is constructed to be removable from the housing, the handle core including the first light source, the second light source and the third light source, and the handle core also includes the first light guide column, the second light guide column and the third light guide column; when the handle core is removed from the housing, the first light source, the second light source and the third light source, and the first light guide column, the second light guide column and the third light guide column are also removed from the housing for reuse.

2. The surgical instrument according to claim 1, wherein: The three optical components include three light guide assemblies, the three light guide assemblies including the first light guide assembly, the second light guide assembly, and the third light guide assembly, each of the first light guide assembly, the second light guide assembly, and the third light guide assembly further including a light guide and a light splitter, the light guide being configured to guide incident light into the light splitter; the light splitter including a first output end located on the first side and a second output end located on the second side, the one indicator being located at the first output end, and the other indicator being located at the second output end; The light splitter is configured to split the incident light into a first portion of visible light directed to the first exit end and a second portion of visible light directed to the second exit end, so that the one indicator emits the first portion of visible light and the other indicator emits the second portion of visible light.

3. The surgical instrument of claim 2, wherein: The light guide member includes a light guide column extending along a third direction; The light splitting element includes a light splitting column extending in a plane perpendicular to the third direction, the light splitting column is provided with a recessed portion, and a first reflecting surface and a second reflecting surface are provided on a side of the recessed portion facing the light guide column. The incident light enters the recessed portion through the light guide column, the first reflective surface is configured to reflect a portion of the incident light to form the first portion of visible light, and the second reflective surface is configured to reflect another portion of the incident light to form the second portion of visible light.

4. The surgical instrument according to claim 1, wherein: The handle assembly further comprises: a driving component fixed in the housing and comprising a driving rod configured to perform linear motion along a first direction; A control component is provided in the handle core and includes a motor and a control circuit, wherein the motor has a power output shaft configured to provide a driving force to the drive component; the control circuit is connected to the motor and configured to provide a driving signal to the motor, The control circuit includes a circuit board, and the first light source, the second light source, the third light source, the first light guide column, the second light guide column and the third light guide column are all mounted on the circuit board.

5. The surgical instrument according to claim 2, wherein: The handle assembly further includes a support plate disposed in the housing, the support plate including a support plate extending within a plane defined by the first direction and the second direction, the support plate being configured to support the light guide assembly.

6. The surgical instrument according to claim 5, wherein: The three light guide components include three light splitters, and the support plate includes a plurality of grooves arranged along the first direction, and the plurality of grooves respectively accommodate the three light splitters.

7. The surgical instrument according to claim 6, wherein: The groove includes a bottom and a side wall connected to the bottom, and a height of the side wall relative to the support plate is greater than or equal to a height of the light splitting element relative to the support plate.

8. The surgical instrument according to claim 7, wherein: The sidewalls include a light-blocking material.

9. The surgical instrument according to claim 8, wherein: A through hole penetrating the support plate is provided in the bottom portion, and the light guide is configured to be exposed from the through hole.

10. The surgical instrument according to claim 5, wherein: The support plate includes a first end and a second end opposite to each other in the first direction, the first end is close to the distal end of the shaft assembly, the second end is away from the distal end of the shaft assembly, and the first end is provided with a slot; The handle assembly further includes a finger connector disposed in the housing, the finger connector being inserted into the card slot to transmit electrical signals.

11. The surgical instrument according to any one of claims 1 to 10, wherein: The three optical components include three indicator pairs, which are spaced apart in the first direction and configured to respectively emit visible light of a plurality of different colors.

12. The surgical instrument according to claim 11, wherein: The three indicator pairs are configured to respectively emit three different colors of visible light, and the three different colors of visible light are used to respectively indicate different information associated with the surgical instrument.

13. The surgical instrument according to claim 11, wherein: The three indicator pairs include a first indicator pair, a second indicator pair, and a third indicator pair, the first indicator pair being configured to emit a first visible light and comprising a first indicator located on the first side and a second indicator located on the second side; the second indicator pair being configured to emit a second visible light and comprising a third indicator located on the first side and a fourth indicator located on the second side; the third indicator pair being configured to emit a third visible light and comprising a fifth indicator located on the first side and a sixth indicator located on the second side; The first indicator, the third indicator, and the fifth indicator are spaced apart in the first direction, and the second indicator, the fourth indicator, and the sixth indicator are spaced apart in the first direction.

14. The surgical instrument according to claim 1, wherein: The first light source, the second light source, and the third light source are spaced apart in the second direction.

15. The surgical instrument according to claim 14, wherein: The handle assembly includes a drive control portion, which includes a circuit board and a controller disposed on the circuit board. The first light source, the second light source, and the third light source are all disposed on the circuit board.

16. The surgical instrument according to claim 2, wherein: The first light guide assembly includes a first light guide and a first light splitter, the first light guide is configured to guide the first incident light into the first light splitter, and the first light guide includes the first light guide column; The second optical component further includes a second light guide assembly located in the housing, the second light guide assembly including a second light guide element and a second light splitter, the second light guide element being configured to guide the second incident light into the second light splitter, the second light guide element including a second light guide column; The third optical component further includes a third light guide assembly located in the housing, the third light guide assembly including a third light guide member and a third light splitter, the third light guide member being configured to guide the third incident light into the third light splitter, the third light guide member including the third light guide column; The first light guide, the second light guide and the third light guide are spaced apart in the second direction, and the first light splitter, the second light splitter and the third light splitter are spaced apart in the first direction.

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