Slip ring assembly and surgical operating instrument

Abstract

The utility model provides a slip ring assembly and a surgical operating instrument, the surgical operating instrument comprises a first part and a second part which can rotate relatively, one of the first part and the second part is an execution mechanism of the surgical operating instrument, the other is an instrument platform of the surgical operating instrument, the slip ring assembly comprises at least one group of conductive pairs, and the conductive pairs are arranged on the first part and the second part. Each conductive pair comprises an annular first conductive piece and an annular second conductive piece, the first conductive piece is mounted on the first part, and the second conductive piece is mounted on the second part. Wherein the first conductive part surrounds the outer side or the inner side of the second conductive part, the first conductive part is an open ring, and the open end of the first conductive part and the second conductive part are kept to abut against each other and are electrically connected with each other. According to the invention, under the condition that the first part of the surgical operating instrument can rotate relative to the second part, normal transmission of electric signals between the first part and the second part can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a slip ring assembly and a surgical instrument. Background Art

[0002] The electrification of surgical instruments is already a future development trend. Surgical instruments generally include a proximal instrument platform and a distal actuator. During use, the doctor holds the instrument platform and controls the distal actuator through the instrument platform to perform specific surgical operations on human tissue. Taking the electric stapler as an example, the electric stapler is a surgical instrument used for tissue anastomosis and resection. It generally uses a precise mechanical structure to achieve tissue clamping and cutting, and is widely used in surgical operations. The electric stapler generally includes an instrument platform and a staple cartridge assembly installed at the distal end of the instrument platform. The staple cartridge assembly is provided with a sensor for collecting component information, which is electrically connected to the electronic device inside the instrument platform through a wire, and the collected electrical signal is transmitted to the controller inside the instrument platform.

[0003] During use, to adapt to different surgical scenarios, the stapler assembly needs to be rotatable relative to the instrument platform to adjust its posture. However, in staplers with rotatable stapler assemblies, traditional wire connections cannot effectively transmit electrical signals from the stapler assembly to the instrument platform. During the rotation of the stapler assembly, the wires may also break due to repeated twisting, affecting the normal use of the stapler. Utility Model Content

[0004] In response to the problems in the prior art, the purpose of this application is to provide a slip ring assembly and a surgical instrument, which can achieve normal transmission of electrical signals between the first part and the second part when the first part of the surgical instrument is rotatable relative to the second part.

[0005] An embodiment of the present application provides a slip ring assembly for a surgical instrument, wherein the surgical instrument includes a first part and a second part that can rotate relative to each other, one of the first part and the second part being an actuator of the surgical instrument, and the other being an instrument platform of the surgical instrument; the slip ring assembly includes at least one set of conductive pairs, each conductive pair including an annular first conductive member and an annular second conductive member, the first conductive member being mounted on the first part, and the second conductive member being mounted on the second part; wherein the first conductive member surrounds the outside or inside of the second conductive member, the first conductive member is an open ring, and the open end of the first conductive member and the second conductive member are held in mutual abutment and electrically connected to each other.

[0006] In some embodiments, the first conductive member is at least partially elastic.

[0007] In some embodiments, the second conductive member is a closed ring or an open ring.

[0008] In some embodiments, the slip ring assembly further includes a first mounting member and a second mounting member, the first conductive member is mounted on the first portion via the first mounting member, and the second conductive member is mounted on the second portion via the second mounting member.

[0009] In some embodiments, the slip ring assembly includes a plurality of conductive pairs, wherein the first conductive members of the plurality of conductive pairs are arranged at intervals on the first mounting member, and the second conductive members of the plurality of conductive pairs are arranged at intervals on the second mounting member.

[0010] In some embodiments, the plurality of first conductive members are staggered in the axial direction, and the plurality of second conductive members are staggered in the axial direction.

[0011] In some embodiments, the plurality of first conductive elements are concentrically arranged and have different diameters; the plurality of second conductive elements are concentrically arranged and have different diameters.

[0012] In some embodiments, a first insulating isolation structure is provided between two adjacent first conductive members, and a second insulating isolation structure is provided between two adjacent second conductive members.

[0013] In some embodiments, the first mounting member includes a first cover body, the second mounting member includes a second cover body, and the first cover body and the second cover body are buckled together to form a accommodating cavity for accommodating the first conductive member and the second conductive member; the first conductive member includes a first annular portion and a first electrical connecting portion, the first annular portion is arranged on the inner side of the first cover body, and the first electrical connecting portion passes through the first cover body and protrudes from the outer side of the first cover body; the second conductive member includes a second annular portion and a second electrical connecting portion, the second annular portion is arranged on the inner side of the second cover body, and the second electrical connecting portion passes through the second cover body and protrudes from the outer side of the second cover body.

[0014] An embodiment of the present application further provides a surgical instrument, comprising a first part and a second part that are rotatable relative to each other, and the above-mentioned slip ring assembly.

[0015] The slip ring assembly and surgical instrument provided by this application have the following advantages:

[0016] By adopting the application, a slip ring assembly is provided between the relatively rotatable first part and the second part of the surgical instrument. When the first part and the second part relatively rotate, the first conductive part mounted on the first part and the second conductive part mounted on the second part also relatively rotate, and the open end of the first conductive part always maintains abutting and electrical connection with the second conductive part, so that the first conductive part and the second conductive part always maintain electrical connection. Through the slip ring assembly, the electrical signal of the electronic device connected to the first conductive part can be transmitted to the electronic device connected to the second conductive part, or the electrical signal of the electronic device connected to the second conductive part can be transmitted to the electrical signal of the electronic device connected to the first conductive part. Therefore, in the case that the first part of the surgical instrument is relatively rotatable with respect to the second part, the slip ring assembly can also realize normal transmission of the electrical signal between the first part and the second part. The slip ring assembly of the application can not only be applied between the cartridge assembly and the instrument platform of the surgical stapler, but also be applied between the actuating mechanism and the instrument platform of other electric surgical instruments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments with reference to the drawings.

[0018] Figure 1 is a structural schematic view of a slip ring assembly according to an embodiment of the application;

[0019] Figure 2 is a structural schematic view of the slip ring assembly according to an embodiment of the application from another perspective;

[0020] Figure 3 is a structural schematic view of a first mounting part and a first conductive part according to an embodiment of the application;

[0021] Figure 4 is a structural schematic view of a second mounting part and a second conductive part according to an embodiment of the application;

[0022] Figure 5 is a schematic view of the cooperation of the first conductive part and the second conductive part according to an embodiment of the application;

[0023] Figure 6 is a structural schematic view of two groups of conductive pairs according to an embodiment of the application;

[0024] Figure 7 is a side view of the slip ring assembly according to an embodiment of the application;

[0025] Figure 8 is Figure 7 is a sectional view along the direction of A1-A1 in FIG. 8;

[0026] Figure 9 is Figure 7Cross-sectional view along the A2-A2 direction.

[0027] Reference numerals:

[0028] 1 First mounting member 3 First conductive member

[0029] 11 Step portion 31 First annular portion

[0030] 12 Fitting hole 32 First electrical connection portion

[0031] 2 Open end of the second mounting member 33

[0032] 21 groove 4 second conductive member

[0033] 22 boss 41 second annular portion

[0034] 23 First buckle 42 Second electrical connection portion

[0035] 24 Second buckle DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments described herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures represent identical or similar structures, and thus repetitive descriptions of these structures will be omitted. The terms "or" and "or" in this specification may each mean "and" or "or." Although terms such as "above," "below," and "between" may be used in this specification to describe various exemplary features and elements of this application, these terms are used herein for convenience only, such as in accordance with the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of a structure to fall within the scope of this application. Although terms such as "first" and "second" are used in this specification to refer to certain features, this is merely to indicate their function and not to limit the number or importance of specific features. Unless otherwise specified, terms such as "connected" and "electrically connected" in this application may refer to either a direct connection or an indirect connection.

[0037] An embodiment of the present application provides a slip ring assembly and a surgical instrument including the slip ring assembly. The surgical instrument includes a first portion and a second portion that are rotatable relative to each other. For example, the first portion is an actuator and the second portion is an instrument platform; alternatively, the first portion is an instrument platform and the second portion is an actuator. The slip ring assembly includes at least one conductive pair, each conductive pair including an annular first conductive member and an annular second conductive member, the first conductive member being mounted on the first portion and the second conductive member being mounted on the second portion; wherein the first conductive member surrounds the outside or inside of the second conductive member, the first conductive member is an open ring, and the open end of the first conductive member and the second conductive member are in mutual abutment and electrical connection.

[0038] By adopting the present application, a slip ring assembly is provided between a first part and a second part of a surgical instrument that can rotate relative to each other. When the first part and the second part rotate relative to each other, the first conductive part installed on the first part and the second conductive part installed on the second part also rotate relative to each other, and the open end of the first conductive part always maintains abutment and electrical connection with the second conductive part, so that the first conductive part and the second conductive part always maintain electrical connection, thereby realizing normal transmission of electrical signals between the first part and the second part.

[0039] Take the surgical instrument as a surgical stapler, the first part as a stapler assembly (actuator), and the second part as an instrument platform as an example. When the stapler assembly rotates relative to the instrument platform, the second conductive member remains stationary, the first conductive member rotates relative to the second conductive member, the first conductive member and the second conductive member always remain electrically connected, and the electrical signal of the sensor electrically connected to the first conductive member can be normally transmitted to the circuit board / controller electrically connected to the second conductive member. Take the first part as an instrument platform, and the second part as an example. When the stapler assembly rotates relative to the instrument platform, the first conductive member remains stationary, the second conductive member rotates relative to the first conductive member, the first conductive member and the second conductive member always remain electrically connected, and the electrical signal of the sensor electrically connected to the second conductive member can be normally transmitted to the circuit board / controller electrically connected to the first conductive member.

[0040] The structures of the slip ring assemblies of various specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the various specific embodiments are not intended to limit the scope of protection of the present application.

[0041] like Figures 1 to 5As shown, the slip ring assembly includes at least one conductive pair, each conductive pair including a first conductive member 3 and a second conductive member 4. The first conductive member 3 is mounted on the first portion, and the second conductive member 4 is mounted on the second portion. In one embodiment, the first portion is an actuator of a surgical instrument, the first conductive member 3 is electrically connected to a sensor in the actuator, the second portion is an instrument platform, and the second conductive member 4 is electrically connected to a circuit board or controller in the instrument platform. In another optional embodiment, the first portion is an instrument platform of a surgical instrument, the first conductive member 3 is electrically connected to a circuit board or controller in the instrument platform, the second portion is an actuator, and the second conductive member 4 is electrically connected to a sensor in the actuator.

[0042] The slip ring assembly also includes a first mounting member 1 and a second mounting member 2. The first conductive member 3 is mounted on the first part through the first mounting member 1, and the second conductive member 4 is mounted on the second part through the second mounting member 2. The first conductive member 3 surrounds the outside or inside of the second conductive member 4. The first conductive member 3 is an open ring. The open end 33 of the first conductive member 3 and the second conductive member 4 are in contact with each other and are electrically connected to each other. Depending on the rotation angle range of the first part relative to the second part, the second conductive member 4 can be a closed ring or an open ring. For example, when the first part can rotate 360° relative to the second part, the second conductive member 4 is a closed ring, so that when the first conductive member 3 rotates 360° relative to the second conductive member 4, the open end 33 of the first conductive member 3 can always be in contact with and electrically connected to the second conductive member 4, thereby providing the operator with more rotation angle options and being applicable to various surgical scenarios. When the first part can rotate 270° relative to the second part, the second conductive member 4 can be a closed ring or an open ring with a central angle greater than or equal to 270°, ensuring that the first conductive member 3 and the second conductive member 4 remain electrically connected when the rotation angle relative to the second conductive member 4 is within 270°. In this embodiment, the second conductive member 4 is described as a closed ring, i.e., the inner ring is an open ring and the outer ring is a closed ring. It is understood that in another embodiment, the inner ring can be a closed ring and the outer ring can be an open ring, or both the inner ring and the outer ring can be open rings.

[0043] In this embodiment, the first mounting member 1 includes a first cover body, and the second mounting member 2 includes a second cover body. The first cover body and the second cover body are buckled together to form a housing cavity for accommodating the first conductive member 3 and the second conductive member 4. The first cover body is provided with a matching hole 12, and the second cover body is provided with a boss 22. A first buckle 23 is provided on the inner side of the outer ring of the second cover body, and a second buckle 24 is provided on the outer side of the boss 22 of the second cover body. When the second cover body and the first cover body are buckled together, the boss 22 passes through the matching hole 12, and the first buckle 23 and the second buckle 24 are buckled with the first cover body to maintain the connection stability between the first cover body and the second cover body. The connection method of the first cover body and the second cover body and the shape of the two covers here are only examples and are not intended to limit the scope of protection of this application.

[0044] The first conductive member 3 also includes a first annular portion 31 and a first electrical connection portion 32. The first annular portion 31 is provided on the inner side of the first cover body (i.e., the side facing the second cover body), and the first electrical connection portion 32 passes through the first cover body and protrudes from the outside of the first cover body. The first electrical connection portion 32 is used to electrically connect to an electronic device (sensor, circuit board or controller) provided in the first part of the surgical instrument. The second conductive member 4 includes a second annular portion 41 and a second electrical connection portion 42. The second annular portion 41 is provided on the inner side of the second cover body (i.e., the side facing the first cover body), and the second electrical connection portion 42 passes through the second cover body and protrudes from the outside of the second cover body. The second electrical connection portion 42 is used to electrically connect to an electronic device (circuit board, controller or sensor) provided in the second part of the surgical instrument.

[0045] In this embodiment, the first conductive member 3 is at least partially elastic. The open ring is bent at the open end 33 to form a bent portion. The open ring is made, for example, from a thin metal sheet. During relative rotation between the first conductive member 3 and the second conductive member 4, the elasticity of the open ring ensures that the open end 33 maintains a more stable contact and electrical connection with the second conductive member 4, without hindering the relative rotation between the first mounting member 1 and the second mounting member 2.

[0046] Figures 1 to 5 It is exemplarily shown that two groups of conductive pairs are provided in the slip ring assembly. The actual number of conductive pairs can be selected as needed, and can be one or more groups. When multiple groups of conductive pairs are provided, the first conductive members 3 of the multiple groups of conductive pairs are arranged at intervals on the first mounting member 1, and the second conductive members 4 of the multiple groups of conductive pairs are arranged at intervals on the second mounting member 2. In addition, in order to avoid mutual interference between the multiple conductive members in the mating position, the multiple first conductive members 3 are staggered in the axial direction, and are arranged concentrically, and have different diameters from each other, and the multiple second conductive members 4 are staggered in the axial direction, and are arranged concentrically, and have different diameters from each other. As Figures 6 to 9As shown, in order to distinguish the set of conductive pairs of the outer ring and the set of conductive pairs of the inner ring, the conductive pairs of the outer ring and the conductive pairs of the inner ring are distinguished in the reference numerals. The conductive pairs of the inner ring include the first conductive member 3a and the second conductive member 4a, the first conductive member 3a includes the first annular portion 31a, the first electrical connection portion 32a and the open end 33a, and the second conductive member 4a includes the second annular portion 41a and the second electrical connection portion 42a. The conductive pairs of the outer ring include the first conductive member 3b and the second conductive member 4b, the first conductive member 3b includes the first annular portion 31b, the first electrical connection portion 32b and the open end 33b, and the second conductive member 4b includes the second annular portion 41b and the second electrical connection portion 42b. The diameter of the first conductive member 3b of the outer ring is greater than the diameter of the first conductive member 3a of the inner ring, and the diameter of the second conductive member 4b of the outer ring is greater than the diameter of the second conductive member 4a of the inner ring. The first conductive member 3a of the inner ring and the first conductive member 3b of the outer ring are arranged in axial staggered manner (arranged in front of and behind each other in the perspective view of Figure 6 Figure 6

[0047] As shown in Figures 3-5 In order to realize that the multiple sets of conductive pairs do not interfere with each other, a first insulation isolation structure is arranged between the two adjacent first conductive members 3, so that the multiple first conductive members 3 are insulated and isolated from each other, and a second insulation isolation structure is arranged between the two adjacent second conductive members 4, so that the multiple second conductive members 4 are insulated and isolated from each other, thereby realizing that the multiple sets of conductive pairs are insulated and isolated from each other. In this embodiment, the first insulation isolation structure is a step structure arranged on the inner side of the first mounting member 1, and the second insulation isolation structure is a groove structure arranged on the inner side of the second mounting member 2. The step structure includes two step portions 11 with different diameters and different heights, and the first annular portion 31 is arranged around the inner side of the step portion 11. The groove structure includes two grooves 21 with different diameters and different depths, and the second annular portion 41 is arranged around the inner wall of the groove 21. After the first mounting member 1 and the second mounting member 2 are buckled, a gap for accommodating the open end 33 is formed between the step portion 11 and the groove 21.

[0048] Here, only one setting mode of the first insulation isolation structure and the second insulation isolation structure is exemplarily shown, but it is not intended to limit the protection scope of the present application. In other exemplary embodiments, the first insulation isolation structure and the second insulation isolation structure can also respectively include at least one insulation partition plate, which is also arranged, for example, in an annular shape. Alternatively, the first insulation isolation structure includes a groove, and the second insulation isolation structure includes a step portion.

[0049] ​​The above content is a further detailed description of the present application in conjunction with specific preferred embodiments, and the specific implementation of the present application cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, and all of them should be considered to fall within the scope of protection of the present application.

Claims

1. A slip ring assembly, characterized in that: For a surgical instrument, the surgical instrument comprises a first part and a second part that are rotatable relative to each other, one of the first part and the second part is an actuator of the surgical instrument, and the other is an instrument platform of the surgical instrument; The slip ring assembly includes at least one set of conductive pairs, each set of the conductive pairs includes an annular first conductive member and an annular second conductive member, the first conductive member is installed on the first part, and the second conductive member is installed on the second part; The first conductive member surrounds the outer side or the inner side of the second conductive member, and the first conductive member is an open ring. The open end of the first conductive member and the second conductive member are in mutual abutment and electrically connected.

2. The slip ring assembly according to claim 1, wherein: The first conductive member is at least partially elastic.

3. The slip ring assembly according to claim 1, wherein: The second conductive member is a closed ring or an open ring.

4. The slip ring assembly according to claim 1, wherein: The slip ring assembly further includes a first mounting member and a second mounting member. The first conductive member is mounted on the first portion via the first mounting member, and the second conductive member is mounted on the second portion via the second mounting member.

5. The slip ring assembly according to claim 4, characterized in that: The slip ring assembly includes multiple groups of conductive pairs, wherein the first conductive members of the multiple groups of conductive pairs are arranged at intervals on the first mounting member, and the second conductive members of the multiple groups of conductive pairs are arranged at intervals on the second mounting member.

6. The slip ring assembly according to claim 5, characterized in that: The plurality of first conductive members are staggered along the axial direction, and the plurality of second conductive members are staggered along the axial direction.

7. The slip ring assembly according to claim 5, characterized in that A plurality of the first conductive members are arranged concentrically, and have different diameters; a plurality of the second conductive members are arranged concentrically, and have different diameters.

8. The slip ring assembly according to claim 5, wherein: A first insulating isolation structure is provided between two adjacent first conductive members, and a second insulating isolation structure is provided between two adjacent second conductive members.

9. The slip ring assembly according to claim 4, wherein: The first mounting member includes a first cover, and the second mounting member includes a second cover. The first cover and the second cover are buckled together to form a receiving cavity for receiving the first conductive member and the second conductive member. The first conductive member includes a first annular portion and a first electrical connecting portion, the first annular portion is arranged on the inner side of the first cover body, and the first electrical connecting portion passes through the first cover body and protrudes from the outer side of the first cover body; the second conductive member includes a second annular portion and a second electrical connecting portion, the second annular portion is arranged on the inner side of the second cover body, and the second electrical connecting portion passes through the second cover body and protrudes from the outer side of the second cover body.

10. A surgical instrument, characterized in that: The slip ring assembly comprises a first part and a second part which are rotatable relative to each other, and the slip ring assembly according to any one of claims 1 to 9.

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