Surgical instrument

Abstract

The embodiment of the specification provides a surgical instrument. The surgical instrument comprises a mandrel, a handle part, a first operating part, a second operating part and a functional part, the far end of the first operation part is connected with the near end of the function part, the second operation part is arranged at the near end of the first operation part, and the second operation part is connected with the handle part; the mandrel is connected with the function part, the second operation part and the handle part, and the mandrel is fixedly connected with the first operation part; and the first operation part and / or the second operation part rotate to drive the mandrel to rotate and drive the function part to rotate.

Description

Technical Field

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

[0002] The surgical instrument may be a medical instrument used in clinical surgery, such as a hemostatic clip, a snare, etc. The surgical instrument may be used on an endoscope for gastroenteroscopic interventional treatment in the field of gastroenterology. The endoscope may include an optical lens and a surgical instrument (such as a hemostatic clip, a snare, etc.). Currently, in clinical practice, the rotation of the head of the surgical instrument (such as a hemostatic clip, a snare, etc.) to achieve clamping of the target position can only be achieved through nurses' operation, which is inconvenient for medical operation.

[0003] Therefore, it is hoped to provide a surgical instrument that can enable the doctor to rotate the surgical instrument while retaining the nurse's operation of the surgical instrument, thereby improving the convenience of surgical operation. Utility Model Content

[0004] One or more embodiments of the present specification provide a surgical instrument. The surgical instrument comprises: a core shaft, a handle portion, a first operating portion, a second operating portion, and a functional portion; the distal end of the first operating portion is connected to the proximal end of the functional portion, the second operating portion is arranged at the proximal end of the first operating portion, and the second operating portion is connected to the handle portion; the core shaft is connected to the functional portion, the second operating portion, and the handle portion, and the core shaft is fixedly connected to the first operating portion; the first operating portion and / or the second operating portion rotate to drive the core shaft to rotate, and drive the functional portion to rotate.

[0005] In some embodiments, the first operating part and / or the second operating part comprises a rotor; an axial channel is arranged in the rotor along the axial direction of the surgical instrument, and the core shaft is fixed in the axial channel.

[0006] In some embodiments, the first operating part and / or the second operating part also includes a rotor limiting plate; the axial channel passes through the rotor limiting plate; the cross-section of the rotor limiting plate along the radial direction of the surgical instrument is a non-circular structure, and a rotor slot with a shape adapted to the rotor limiting plate is provided in the rotor, and the rotor limiting plate is provided in the rotor slot.

[0007] In some embodiments, the rotor includes a through hole, which is axially arranged on one side of the rotor slot; the core shaft passes through the rotor from the through hole at one end of the rotor limit plate, wherein the characteristic size of the through hole is smaller than the characteristic size of the rotor limit plate.

[0008] In some embodiments, the first operating part further includes a guide tube, and / or the second operating part further includes a guide tube; the core shaft is fixed in the guide tube, and the guide tube is fixed in the shaft channel.

[0009] In some embodiments, the surgical instrument also includes a sheath, the core shaft is arranged in the sheath, the sheath includes a first sub-sheath and a second sub-sheath that are independent of each other, and the first operating part also includes a rotor shell; the first sub-sheath is connected to the distal end of the rotor shell, the second sub-sheath is connected to the proximal end of the rotor shell, the rotor is arranged in the rotor shell, one end of the core shaft fixed in the rotor passes through the sheath and is connected to the proximal end of the functional part, and the other end of the core shaft fixed in the rotor passes through the second sub-sheath and is connected to the second operating part.

[0010] In some embodiments, the rotor housing includes an operation opening, the rotor is disposed in the operation opening, and an operator controls the rotor to rotate and / or move axially through the operation opening to drive the core shaft to perform corresponding actions.

[0011] In some embodiments, the second operating part includes a rotating cap and a special-shaped tube, and the special-shaped tube is axially slidably connected to the rotating cap; the core shaft is fixed in the special-shaped tube, and the first limiting portion of the special-shaped tube has a non-circular structure along the radial cross-section of the surgical instrument, and the rotating cap includes a rotating cap slot whose shape is adapted to the first limiting portion of the special-shaped tube, and at least part of the first limiting portion is arranged in the rotating cap slot; the rotating cap rotates to drive the special-shaped tube to rotate, thereby driving the core shaft fixed in the special-shaped tube to rotate.

[0012] In some embodiments, the handle portion includes a handle shell and a sliding bracelet and a finger ring arranged on the handle shell, and the core shaft is arranged in the handle shell; a sliding groove is arranged on the handle shell along the axial direction of the surgical instrument, and the sliding bracelet passes through the sliding groove to be connected to the core shaft; the sliding bracelet moves along the axial direction of the surgical instrument, drives the core shaft to move along the axial direction of the surgical instrument, and drives the functional portion to move along the axial direction of the surgical instrument.

[0013] In some embodiments, the handle portion also includes a pressure block; a second limiting portion is provided on the sliding bracelet, and the pressure block is arranged in the second limiting portion; a through hole is provided on the second limiting portion, and the core shaft passes through the through hole on the second limiting portion and is connected to the pressure block.

[0014] In some embodiments, the functional part is at least one of a snare, a hemostatic clip, a biopsy forceps, a foreign body forceps, or a cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0016] Figure 1 is a schematic diagram of the structure of a surgical instrument according to some embodiments of this specification;

[0017] Figure 2 It is an exploded view of other structures of the surgical instrument except the functional part according to some embodiments of this specification;

[0018] Figure 3 is an axonometric view of a rotor according to some embodiments of the present specification;

[0019] Figure 4a is a side view of a rotor according to some embodiments of the present specification;

[0020] Figure 4b According to some embodiments of this specification Figure 4a The AA section view of the rotor AA surface is shown;

[0021] Figure 5a is a front view of a rotor limiting piece according to some embodiments of this specification;

[0022] Figure 5b According to some embodiments of this specification Figure 5a The BB cross-sectional view of the BB surface of the rotor limit plate shown;

[0023] Figure 6 is a side view of a first operating portion according to some embodiments of the present specification;

[0024] Figure 7 According to some embodiments of this specification Figure 6 FF cross-sectional view of the first operating portion FF surface shown;

[0025] Figure 8a According to some embodiments of this specification Figure 7 EE cross-sectional view of the first operating portion EE surface shown;

[0026] Figure 8b According to some embodiments of this specification Figure 7 Another E'-E' cross-sectional view of the first operating portion taken along the E'-E' plane shown;

[0027] Figure 9a is a cross-sectional view of a rotating cap according to some embodiments of the present specification;

[0028] Figure 9b According to some embodiments of this specification Figure 9a The CC cross-sectional view of the rotating cap CC surface shown;

[0029] Fig.10a is a side view of a special-shaped tube according to some embodiments of the present specification;

[0030] Fig.10b According to some embodiments of this specification Fig.10a DD cross-sectional view of the DD surface of the special-shaped tube shown;

[0031] Fig.11 is a cross-sectional view of a second operating portion and a handle portion according to some embodiments of the present specification;

[0032] Fig.12 According to some embodiments of this specification Fig.11 A partial enlarged view of the middle A area;

[0033] Fig.13 It is a schematic diagram of a trap structure according to some embodiments of the present specification.

[0034] Figure numerals: functional part 1000, first operating part 2100, second operating part 2200, sheath 2300, first sub-sheath 2301, second sub-sheath 2302, handle part 2400, core shaft 2310, hemostatic clip 1100, rotor housing 2110, housing slot 2111, rotor 2120, guide tube 2121, rotor limit plate 2122, rotor slot 2123, rotating cap 2210, rotating cap slot 2211, special-shaped tube 2220, first rectangular cross-section tube 2221, second rectangular cross-section tube 2222, handle housing 2410, sliding bracelet 2420, pressure block 2421, finger ring 2430, snare 1200, snare fixing part 1210, annular protrusion 2320 and fixing part 2330. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of this specification. For ordinary technicians in this field, this specification can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0036] It should be understood that the "system", "device", "unit" and / or "module" used herein are a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0037] As shown in this specification and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate that the elements that have been clearly identified are included, and these elements do not constitute an exclusive list. The device may also include other elements.

[0038] Figure 1 It is a schematic diagram of the structure of surgical instruments shown in some embodiments of this specification. Figure 2 It is an exploded view of other structures on the surgical instrument except the functional part according to some embodiments of this specification. Fig.13 It is a schematic diagram of a trap structure according to some embodiments of the present specification.

[0039] like Figure 1-Figure 2 As shown, the surgical instrument may include a mandrel 2310, a handle portion 2400, a first operating portion 2100, a second operating portion 2200, and a functional portion 1000. The distal end of the first operating portion 2100 is connected to the proximal end of the functional portion 1000. The second operating portion 2200 is disposed at the proximal end of the first operating portion 2100, and the second operating portion 2200 is connected to the handle portion 2400. The mandrel 2310 is connected to the functional portion 1000, the second operating portion 2200, and the handle portion 2400, and the mandrel 2310 is fixedly connected to the first operating portion 2100.

[0040] In some embodiments, the surgical instrument further includes a sheath 2300, and the core shaft 2310 is disposed in the sheath 2300. The sheath 2300 refers to an outer sleeve for placing the core shaft 2310.

[0041] In some embodiments, the rotation of the first operating part 2100 can drive the core shaft 2310 to rotate, and drive the functional part 1000 to rotate.

[0042] In some embodiments, the rotation of the second operating part 2200 can drive the core shaft 2310 to rotate, and drive the functional part 1000 to rotate.

[0043] In some embodiments, the first operating part 2100 and the second operating part 2200 rotate together to drive the core shaft 2310 to rotate, and drive the functional part 1000 to rotate.

[0044] Functional part 1000 refers to the ability to move along the axis direction (eg, Figure 1The device can realize the opening and closing operation by moving in the y-axis direction or rotating with the axis direction as the central axis. The mandrel 2310 refers to the central axis used to drive the functional part to move.

[0045] The proximal end of the functional portion refers to the end adjacent to the first operating portion.

[0046] In some embodiments, the functional part 1000 can be at least one of a snare, a hemostatic clip, a biopsy forceps, a foreign body forceps, or a cutting knife. A snare is a device used to ligate blood vessels, polyps, or other pipe structures in the human body.

[0047] In some embodiments, the connection between the distal end of the first operating portion and the proximal end of the functional portion, and the connection between the core shaft and the functional portion may be one of snap-fit ​​connection, bonding or welding.

[0048] Just as an example, Fig.13 As shown, the functional part 1000 may be a snare 1200 , and the snare 1200 may be fixedly connected to the core shaft 2310 via a snare fixing member 1210 . When the first operating part 2100 is rotated, the core shaft 2310 rotates, thereby causing the snare 1200 to rotate.

[0049] The first operating part 2100 refers to a mechanical part for an operator (eg, a doctor) to operate to drive the core shaft 2310 to rotate and drive the functional part 1000 to rotate. The proximal end of the first operating part refers to the end adjacent to the functional part. The distal end of the first operating part refers to the end away from the functional part.

[0050] The second operating part 2200 refers to another mechanical component for an operator (eg, a nurse) to operate to drive the spindle 2310 to rotate and drive the functional part 1000 to rotate.

[0051] In some embodiments, the mechanical structures of the first operating part 2100 and the second operating part 2200 may have various forms. For example, the mechanical structure of the first operating part 2100 may be as follows: Figure 8a or Figure 8b For another example, the mechanical structure of the second operating part 2200 may be as follows: Figure 8a , Figure 8b or Figure 9b One of the mechanical structures shown.

[0052] For more information about the structures of the first operating unit 2100 and the second operating unit 2200, see Figure 3-10b Description.

[0053] In some embodiments, the fixed connection between the core shaft and the first operating part can be one of snap connection, bonding or welding.

[0054] In some embodiments, the second operating part 2200 may be connected to the functional part 1000 via a core shaft 2310 passing through the interior of the second operating part 2200 .

[0055] The handle portion 2400 is a mechanical component used by an operator (eg, a nurse) to drive the second operating portion to rotate, drive the core shaft to rotate, and drive the functional portion to rotate. For more information about the handle portion structure, please refer to Fig.11 Description of the section.

[0056] In some embodiments, the handle portion 2400 can be connected to the functional portion 1000 via a core shaft 2310 passing through the interior of the handle portion 2200. Thus, an operator (e.g., a doctor, a nurse, etc.) can control the rotation of the handle portion 2400 to drive the second operating portion to move, thereby driving the core shaft to move, and driving the functional portion connected to the core shaft to move (e.g., rotate, axially move, etc.).

[0057] In some embodiments of the present specification, a first operating part and a second operating part that can independently control the rotation of the core shaft are provided, and the first operating part is provided between the functional part and the second operating part, and the second operating part is adjacent to the handle part. While retaining the function of the nurse operating the handle part to control the movement of the second operating part, drive the core shaft to move, and drive the functional part connected to the core shaft to move; the doctor can also operate the first operating part to rotate, drive the core shaft to rotate, and drive the functional part to rotate. At this time, the second operating part rotates accordingly to find the optimal treatment position of the functional part, so that the doctor can realize the rotation control of the surgical instrument by adding the first operating part and the second operating part with the rotation function, thereby improving the convenience of the surgical operation.

[0058] Figure 3 is an axonometric view of a rotor according to some embodiments of the present specification. Figure 4a is a front view of a rotor according to some embodiments of the present specification. Figure 4b According to some embodiments of this specification Figure 4a The AA cross-sectional view of the rotor AA plane is shown. Figure 5a It is a front view of a rotor limiting plate shown in some embodiments of this specification. Figure 5b According to some embodiments of this specification Figure 5a The BB cross-sectional view of the BB surface of the rotor limit plate is shown. Figure 6 is a side view of a first operating portion according to some embodiments of the present specification. Figure 7 According to some embodiments of this specification Figure 6 FF cross-sectional view of the first operating portion taken along the FF plane. Figure 8a According to some embodiments of this specification Figure 7 EE cross-sectional view of the first operating portion taken along plane EE.

[0059] In some embodiments, the first operating part 2100 may only include a rotor. In some embodiments, the second operating part 2200 may only include a rotor. An axial channel is provided in the rotor along the axial direction of the surgical instrument, and the core shaft is fixed in the axial channel.

[0060] In some embodiments, the first operating unit 2100 may also be Figure 8a The mechanical structure shown is specifically that the first operating part 2100 includes a rotor 2120 and a rotor limiting piece 2122 .

[0061] In some embodiments, the second operating unit 2200 may also be Figure 8a The mechanical structure shown is specifically that the second operating part 2200 includes a rotor 2120 and a rotor limiting piece 2122 .

[0062] In some embodiments, Figure 3 and Figure 8a As shown, the shaft channel is arranged along the axial direction of the surgical instrument, the shaft channel passes through the rotor stopper 2122, and the core shaft 2310 is fixed in the shaft channel. Figure 3 , Figure 4a , Figure 4b , Figure 5a and Figure 5b As shown, the cross section of the rotor stopper 2122 along the radial direction of the surgical instrument is a non-circular structure, and a rotor slot 2123 having a shape adapted to the rotor stopper 2122 is provided in the rotor 2120, and the rotor stopper 2122 is disposed in the rotor slot 2123. Thus, the operator (e.g., doctor) can drive the rotor stopper fixed in the rotor to rotate by rotating the rotor, and drive the core shaft to rotate, thereby driving the functional part to rotate.

[0063] The rotor limit plate 2122 is a limit plate located in the rotor and used to limit the position of the core shaft 2310. For example, the rotor limit plate 2122 can be as follows: Figure 2 The square blocks shown.

[0064] The rotor 2120 refers to a rotating body that can drive the core shaft 2310 to rotate.

[0065] In some embodiments, the rotor 2120 may include a through hole, which is axially arranged on one side of the rotor slot 2123, and the core shaft 2310 passes through the rotor 2120 through the through hole at one end of the rotor limiting piece 2122, wherein the characteristic size of the through hole is smaller than the characteristic size of the rotor limiting piece 2122. The characteristic size may include the diameter of the through hole, the length and width of the rotor limiting piece, etc.

[0066] In some embodiments of the present specification, a through hole is provided with a characteristic size of the through hole being smaller than the characteristic size of the rotor limit plate to ensure that only the core shaft can pass through the rotor, thereby preventing the rotor limit plate from moving out of the rotor, thereby ensuring the reliability of fixation between the core shaft and the rotor limit plate, and between the rotor limit plate and the rotor.

[0067] In some embodiments, Figure 6 As shown, Figure 8a The illustrated first operating part 2100 may further include a rotor housing 2110 .

[0068] like Figure 2 As shown, the sheath tube 2300 may include a first sub-sheath tube 2301 and a second sub-sheath tube 2302 which are independent of each other. The first sub-sheath tube 2301 is a section of outer sheath tube for placing a section of mandrel. The second sub-sheath tube 2302 is another section of outer sheath tube for placing another section of mandrel.

[0069] The first sub-sheath 2301 is connected to the distal end of the rotor housing 2110, the second sub-sheath 2302 is connected to the proximal end of the rotor housing 2110, the rotor 2120 is arranged in the rotor housing 2110, one end of the core shaft 2310 fixed in the rotor 2120 passes through the first sub-sheath 2301 and is connected to the proximal end of the functional part 1000, and the other end of the core shaft fixed in the rotor passes through the second sub-sheath 2302 and is connected to the second operating part 2200.

[0070] In some embodiments, both ends of the first sub-sheath tube 2301 and the second sub-sheath tube 2302 are provided with an annular protrusion 2320 (eg, Figure 2 As shown), both ends of the rotor housing 2110 are provided with housing slots 2111, and the annular protrusion 2320 is fixedly connected to the housing slot 2111, thereby realizing the connection between the first sub-sheath tube 2301 and the distal end of the rotor housing 2110, and the second sub-sheath tube is connected to the proximal end of the rotor housing 2110.

[0071] In some embodiments, the annular protrusion 2320 and the housing slot 2111 may be fixedly connected by snap-fit ​​connection, bonding or welding.

[0072] The housing slot refers to a groove used to accommodate the annular protrusion.

[0073] The rotor housing 2110 refers to a hollow housing for protecting and supporting the rotor 2120. The distal end of the rotor housing 2110 refers to an end adjacent to the functional part 1000.

[0074] In some embodiments, the rotor housing 2110 includes an operation opening, and the rotor is disposed in the operation opening. An operator controls the rotor to rotate and / or move axially through the operation opening to drive the core shaft to perform corresponding actions.

[0075] The operating opening refers to an opening provided on the rotor housing, through which an operator can operate a switch for controlling the rotation and / or axial movement of the rotor to drive the spindle to perform a corresponding action (eg, the spindle moves forward, the spindle moves backward, the spindle rotates, etc.).

[0076] In some embodiments of the present specification, through the rotor setting, when the doctor needs to rotate the functional part to find the best treatment position, the rotor in the first operating part can be operated to rotate, drive the core shaft to rotate, and drive the functional part to rotate. At this time, the second operating part rotates accordingly, thereby enabling the doctor to control the surgical instrument and improving the convenience of the surgical operation.

[0077] At the same time, a rotor limit plate is provided in the rotor, and the cross-section of the rotor limit plate along the radial direction of the surgical instrument is a non-circular structure. The core shaft is passed through the rotor limit plate, so that the core shaft is fixed more firmly in the first operating part, thereby preventing the doctor from driving the core shaft to rotate by rotating the rotor in the first operating part, thereby driving the functional part to rotate. In the process, the core shaft shakes, resulting in the inability to quickly rotate the functional part to find the best treatment position.

[0078] Figure 8b According to some embodiments of this specification Figure 7 Another E'-E' cross-sectional view of the first operating portion taken along the E'-E' plane is shown.

[0079] In some embodiments, the first operating unit 2100 may also be Figure 8b In the mechanical structure shown, specifically, the first operating part 2100 includes a rotor 2120 and a guide tube 2121 .

[0080] In some embodiments, the second operating unit 2200 may also be Figure 8b In the mechanical structure shown, specifically, the second operating part 2200 includes a rotor 2120 and a guide tube 2121 .

[0081] In some embodiments, the mandrel 2310 is fixed in the guide tube 2121, and the guide tube 2121 is fixed in the shaft channel. In some embodiments, the mandrel 2310 and the guide tube 2121 are fixed in the shaft channel by a snap connection, bonding, or welding.

[0082] The guide tube 2121 refers to a hollow tube used to protect and support the core shaft. The shaft channel refers to a channel in the rotor along the radial direction of the surgical instrument.

[0083] In some embodiments of the present specification, through the setting of the rotor, when the doctor needs to rotate the functional part to find the best treatment position, the rotor in the first operating part can be used to drive the core shaft to rotate, and drive the functional part to rotate, and then the second operating part rotates accordingly, thereby enabling the doctor to control the surgical instrument and improving the convenience of the surgical operation; and through the setting of the guide tube, the guide tube protects and supports the core shaft to prevent the core shaft from shaking during rotation.

[0084] Figure 9a is a front view of a rotating cap according to some embodiments of the present specification. Figure 9b According to some embodiments of this specification Figure 9a The CC cross-sectional view of the rotating cap CC surface is shown. Fig.10a It is a side view of a special-shaped tube shown in some embodiments of the present specification. Fig.10b According to some embodiments of this specification Fig.10a DD cross-sectional view of the DD surface of the special-shaped tube shown. Fig.12 According to some embodiments of this specification Fig.11 A partial enlarged view of area A.

[0085] In some embodiments, the second operating unit 2200 may also be Figure 2 , Figure 9a-10b The mechanical structure shown, specifically, the second operating part 2200 includes a rotating cap 2210 and a special-shaped tube 2220, and the special-shaped tube 2220 is slidably connected with the rotating cap 2210 along the axial direction. The core shaft 2310 is fixed in the special-shaped tube 2220, and the cross section of the first limiting portion of the special-shaped tube 2220 along the radial direction of the surgical instrument is a non-circular structure. The rotating cap 2210 includes a rotating cap slot 2211 whose shape is adapted to the first limiting portion of the special-shaped tube 2220, and at least part of the first limiting portion is arranged in the rotating cap slot 2211. The rotating cap 2210 rotates to drive the special-shaped tube 2220 to rotate, driving the core shaft 2310 fixed in the special-shaped tube 2220 to rotate.

[0086] The first limiting portion refers to a mechanical component used to limit the position of the core shaft located in the special-shaped tube.

[0087] The rotating cap 2210 refers to a component that can rotate under the action of an external force, drive the special-shaped tube 2220 to rotate, and drive the core shaft 2310 fixed in the special-shaped tube 2220 to rotate.

[0088] Special-shaped pipe 2220 refers to a pipe having a non-circular cross-sectional shape.

[0089] In some embodiments, Figure 10a-Figure 10bAs shown, the special-shaped tube 2220 may include a first rectangular cross-section tube 2221 and a second rectangular cross-section tube 2222 connected to each other. The first rectangular cross-section tube 2221 and the second rectangular cross-section tube 2222 may be connected by a snap-fit ​​connection, bonding or welding.

[0090] The first rectangular cross-section tube 2221 refers to a tube having a rectangular cross-section shape. The second rectangular cross-section tube 2222 refers to another tube having a rectangular cross-section shape.

[0091] In some embodiments, the first rectangular cross-section tube 2221 part cooperates with the rotating cap slot 2211 in the rotating cap 2210. Since the special-shaped tube 2220 is engaged with the rotating cap slot 2211 and the special-shaped tube 2220 is fixed to the core shaft 2310, when the rotating cap 2210 is rotated, the special-shaped tube 2220 located therein also rotates, thereby driving the core shaft 2310 to rotate.

[0092] In some embodiments, Fig.12 As shown, the second sub-sheath tube 2302 may include a fixing member 2330 , and the rotating cap 2210 is connected to the second sub-sheath tube 2302 via the fixing member 2330 .

[0093] The fixing part 2330 refers to a mechanical component used to fix the rotating cap and the second sub-sheath tube, such as a hoop, a fixing ring, etc.

[0094] In some embodiments of the present specification, the rotating cap 2210 on the second operating part is connected to the second sub-sheath tube 2302 through the fixing member 2330, thereby improving the reliability of the connection between the various components on the second operating part.

[0095] Fig.11 It is a cross-sectional view of the second operating portion and the handle portion shown in some embodiments of the present specification.

[0096] In some embodiments, Fig.11 As shown, the handle part 2400 may include a handle housing 2410, a sliding bracelet 2420 and a finger ring 2430 disposed on the handle housing 2410, and the core shaft 2310 is disposed in the handle housing 2410. A slide groove is disposed on the handle housing 2410 along the axial direction of the surgical instrument, and the sliding bracelet passes through the slide groove and is connected to the core shaft 2310. The sliding bracelet 2420 moves along the axial direction of the surgical instrument, drives the core shaft 2310 to move along the axial direction of the surgical instrument, and drives the functional part 1000 to move along the axial direction of the surgical instrument.

[0097] The sliding bracelet 2420 refers to a bracelet that can move along the axial direction of the surgical instrument.

[0098] Finger ring 2430 refers to a ring-shaped structure that can indicate the direction of movement of the spindle.

[0099] In some embodiments, Fig.11 As shown, the handle portion 2400 further includes a pressing block 2421. A second limiting portion is provided on the sliding bracelet 2420, and the pressing block 2421 is provided in the second limiting portion. A through hole is provided on the second limiting portion, and the core shaft 2310 passes through the through hole on the second limiting portion and is connected to the pressing block 2421.

[0100] The second limiting portion 240 refers to a mechanical structure for limiting the position of the pressing block 2421. For example, the second limiting portion may be a limiting groove matching the pressing block.

[0101] Briquetting refers to a mass of a certain shape and size. Fig.11 As shown, the pressing block 2421 can be a square mass matching the size of the inner cavity of the second rectangular cross-section tube 2222.

[0102] In some embodiments of the present specification, the handle portion is configured to include a handle shell and a sliding bracelet and a finger ring arranged on the handle shell, and the core shaft is arranged in the handle shell. By operating the sliding bracelet on the handle portion to move along the axial direction of the surgical instrument, the movement of the second operating portion can be controlled, and the core shaft can be driven to move along the axial direction of the surgical instrument, thereby driving the functional portion to move along the axial direction of the surgical instrument. The operation is simple and convenient.

[0103] In addition, the pressure block is used for limiting, and the rotation of the core shaft only drives the pressure block to rotate, and will not drive the sliding bracelet to rotate, thereby further ensuring that the first operating part and the second operating part can independently control the rotation of the core shaft. While retaining the nurse's operation of the surgical instrument, the doctor's rotational control of the surgical instrument is realized, thereby improving the convenience of surgical operation.

[0104] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0105] At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined.

[0106] In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some invention embodiments that are currently considered useful through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0107] Similarly, it should be noted that in order to simplify the description disclosed in this specification and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this specification, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0108] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0109] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this specification are hereby incorporated by reference in their entirety. Except for application history documents that are inconsistent with or conflicting with the contents of this specification, documents that limit the broadest scope of the claims of this specification (currently or later attached to this specification) are also excluded. It should be noted that if the descriptions, definitions, and / or use of terms in the materials attached to this specification are inconsistent or conflicting with the contents described in this specification, the descriptions, definitions, and / or use of terms in this specification shall prevail.

[0110] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, as an example and not a limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. A surgical instrument, characterized in that: It includes a core shaft, a handle portion, a first operating portion, a second operating portion and a functional portion; The distal end of the first operating part is connected to the proximal end of the functional part, the second operating part is arranged at the proximal end of the first operating part, and the second operating part is connected to the handle part; The core shaft is connected to the functional part, the second operating part and the handle part, and the core shaft is fixedly connected to the first operating part; The first operating part and / or the second operating part rotates to drive the core shaft to rotate, and drives the functional part to rotate.

2. The surgical instrument according to claim 1, characterized in that: The first operating part and / or the second operating part comprises a rotor; An axial channel is arranged in the rotor along the axial direction of the surgical instrument, and the core shaft is fixed in the axial channel.

3. The surgical instrument according to claim 2, characterized in that: The first operating part and / or the second operating part further includes a rotor limiting piece; The shaft channel passes through the rotor limiting plate; The cross-section of the rotor limiting piece along the radial direction of the surgical instrument is a non-circular structure, a rotor slot having a shape adapted to the rotor limiting piece is arranged in the rotor, and the rotor limiting piece is arranged in the rotor slot.

4. The surgical instrument according to claim 3, characterized in that: The rotor comprises a through hole, and the through hole is axially arranged on one side of the rotor slot; The core shaft passes through the rotor from the through hole at one end of the rotor limiting plate, wherein the characteristic size of the through hole is smaller than the characteristic size of the rotor limiting plate.

5. The surgical instrument according to claim 2, characterized in that: The first operating part further includes a guide tube, and / or The second operating part also includes the guide tube; The core shaft is fixed in the guide tube, and the guide tube is fixed in the shaft channel.

6. The surgical instrument according to claim 3, characterized in that: The surgical instrument further comprises a sheath tube, the core shaft is arranged in the sheath tube, the sheath tube comprises a first sub-sheath tube and a second sub-sheath tube which are independent of each other, and the first operating part further comprises a rotor housing; The first sub-sheath is connected to the distal end of the rotor housing, the second sub-sheath is connected to the proximal end of the rotor housing, the rotor is arranged in the rotor housing, one end of the core shaft fixed in the rotor passes through the first sub-sheath and is connected to the proximal end of the functional part, and the other end of the core shaft fixed in the rotor passes through the second sub-sheath and is connected to the second operating part.

7. The surgical instrument according to claim 6, characterized in that: The rotor housing comprises an operating opening, the rotor being arranged in the operating opening, An operator controls the rotor to rotate and / or move axially through the operation opening to drive the core shaft to perform corresponding actions.

8. The surgical instrument according to claim 1, characterized in that: The second operating part includes a rotating cap and a special-shaped tube, and the special-shaped tube is slidably connected to the rotating cap along the axial direction; The core shaft is fixed in the special-shaped tube, the first limiting portion of the special-shaped tube has a non-circular cross-section along the radial direction of the surgical instrument, the rotating cap includes a rotating cap slot whose shape is adapted to the first limiting portion of the special-shaped tube, and at least part of the first limiting portion is arranged in the rotating cap slot; The rotating cap rotates to drive the special-shaped tube to rotate, thereby driving the core shaft fixed in the special-shaped tube to rotate.

9. The surgical instrument according to claim 8, characterized in that: The handle portion comprises a handle shell and a sliding hand ring and a finger ring arranged on the handle shell, and the core shaft is arranged in the handle shell; A slide groove is provided on the handle shell along the axial direction of the surgical instrument, and the sliding bracelet passes through the slide groove and is connected to the core shaft; The sliding bracelet moves along the axial direction of the surgical instrument, drives the core shaft to move along the axial direction of the surgical instrument, and drives the functional part to move along the axial direction of the surgical instrument.

10. The surgical instrument according to claim 9, characterized in that: The handle portion further comprises a pressing block; The sliding bracelet is provided with a second limiting portion, and the pressing block is arranged in the second limiting portion; The second limiting portion is provided with a through hole, and the core shaft passes through the through hole on the second limiting portion and is connected with the pressing block.

11. The surgical instrument according to claim 1, characterized in that: The functional part is at least one of a snare, a hemostatic clip, a biopsy forceps, a foreign body forceps or a cutting knife.

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