WO2019128876A1 - 一种套管组件可拆卸的超声手术器械 - Google Patents

一种套管组件可拆卸的超声手术器械 Download PDF

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Publication number
WO2019128876A1
WO2019128876A1 PCT/CN2018/122781 CN2018122781W WO2019128876A1 WO 2019128876 A1 WO2019128876 A1 WO 2019128876A1 CN 2018122781 W CN2018122781 W CN 2018122781W WO 2019128876 A1 WO2019128876 A1 WO 2019128876A1
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WO
WIPO (PCT)
Prior art keywords
groove
detachable
longitudinal axis
boss
surgical instrument
Prior art date
Application number
PCT/CN2018/122781
Other languages
English (en)
French (fr)
Inventor
聂红林
李枝东
陈继东
常王桃
Original Assignee
上海逸思医疗科技有限公司
逸思（苏州）医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 上海逸思医疗科技有限公司, 逸思（苏州）医疗科技有限公司 filed Critical 上海逸思医疗科技有限公司
Priority to JP2020554356A priority Critical patent/JP7032770B2/ja
Priority to BR112020012969-0A priority patent/BR112020012969B1/pt
Priority to US16/957,955 priority patent/US11759228B2/en
Priority to EP18894621.4A priority patent/EP3733098B1/en
Publication of WO2019128876A1 publication Critical patent/WO2019128876A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00477—Coupling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2901—Details of shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320088—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with acoustic insulation, e.g. elements for damping vibrations between horn and surrounding sheath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
    • A61B2017/320093—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw additional movable means performing cutting operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
    • A61B2017/320094—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw additional movable means performing clamping operation

Definitions

  • the present application relates to a surgical instrument, and in particular to an ultrasonic surgical instrument with a detachable cannula assembly.
  • ultrasonic scalpels With the popularity of minimally invasive surgery, ultrasonic scalpels have become a routine surgical instrument.
  • the ultrasonic scalpel uses an ultrasonic frequency generator to mechanically oscillate the cutter head at a certain ultrasonic frequency, so that water molecules in the tissue are vaporized, protein hydrogen bonds are broken, and the cells are disintegrated, so that the tissue is cut or solidified, and the blood vessel can also be made. closure.
  • Ultrasonic scalpels allow tissue to be cut and coagulated simultaneously with minor lateral thermal damage.
  • Ultrasonic scalpels are mainly composed of ultrasonic frequency generators, transducers, and surgical instruments.
  • the ultrasonic frequency generator emits an oscillating electrical signal
  • the transducer converts the oscillating electrical signal into mechanical vibration
  • the surgical instrument uses the mechanical vibration of the transducer to cut and coagulate the tissue.
  • the surgical instrument usually consists of a shank, a tong that forms a clamping structure with the cutting head (cutting portion of the shank head), a sleeve surrounding the shank, a grip and a gripping mechanism.
  • the shank transmits the mechanical vibration of the transducer to the cutter head; the cutter head cooperates with the clamp to clamp the tissue to realize the cutting and coagulation function; the sleeve isolates the arbor from the outside to protect and support the arbor, and
  • the link mechanism and the clamp can drive the closing and opening of the clamp; the handle and the grasping mechanism are held by the doctor's hand, the clamp can be operated to open and close, and the switch can control the ultrasonic frequency generator to start. Or stop outputting the oscillating electrical signal.
  • the sleeve of the surgical instrument is composed of an outer sleeve and an inner sleeve, and the cutter rod is located inside the inner sleeve.
  • the gap between the inner and outer casings and between the inner casing and the shank is relatively small.
  • blood or tissue fluid enters the gap between the inner and outer sleeves or between the inner sleeve and the shank. Because the gap is very small and narrow, the blood or tissue fluid entering the gap is difficult to clean. . Therefore, even if the structure and performance of the surgical instrument are still good, it cannot be reused again and can only be used as a disposable device, so its use cost is very high.
  • the sleeve, the shank and the clamp are designed as a replaceable component structure, which can only be used once, and other parts can be used multiple times. reuse.
  • the cost reduction of the components such as the casing, the cutter bar, and the clamp accounts for the vast majority of the cost of the surgical instrument, so the cost reduction effect is very limited.
  • Some technical solutions are to design the bushings and clamps into replaceable components, which can only be used once. Other components, including the toolholders, can be reused many times, which can effectively reduce the cost of use.
  • the technical solution involves many parts and is inconvenient to install and disassemble.
  • the inner sleeve is divided into two parts: a proximal end and a distal end.
  • the inner inner sleeve is detachably replaceable with the outer sleeve and the clamp, and the proximal inner sleeve and the shank, the grip and the like are further replaced. Parts can be reused.
  • the connection structure of the distal inner cannula and the connection structure of the proximal outer cannula are complicated, and it is difficult to implement.
  • the present application provides an ultrasonic surgical instrument with a detachable cannula assembly, which has the advantages of simple structure, convenient assembly and disassembly, and low use cost compared with the prior art.
  • an ultrasonic surgical instrument with a detachable cannula assembly comprising a cannula assembly and an instrument body, wherein the instrument body comprises a shank for effecting ultrasonic cutting;
  • the detachment structure is mounted to or detached from the instrument body along a longitudinal axis of the shank.
  • the detachable structure includes a first detachable structure; a fixed connection is achieved between the instrument body and the cannula assembly by at least one of the first detachable structures.
  • the first detachable structure includes a first boss, a first limiting groove, a stopper and an elastic element.
  • the first limiting slot is a T-shaped limiting slot.
  • first boss is located on the sleeve assembly, and the T-shaped limiting groove, the stopper and the elastic member are located on the instrument body.
  • first boss is located on the instrument body, and the T-shaped stop groove, the stop and the elastic member are located on the sleeve assembly.
  • the T-shaped limiting groove includes a transverse groove parallel to the longitudinal axis of the arbor and a vertical groove perpendicular to the longitudinal axis of the shank;
  • the first boss can be at the T-shaped limit
  • the transverse groove of the groove slides along the longitudinal axis of the arbor, and the first boss can also slide in a vertical groove of the T-shaped limiting groove in a direction perpendicular to the longitudinal axis of the arbor;
  • the stopper is configured to be slidable in a transverse groove of the T-shaped limiting groove along a longitudinal axis of the shank but not into a vertical groove of the T-shaped limiting groove;
  • An elastic member capable of providing an elastic force along a transverse groove direction of the T-shaped limiting groove, and the stopper is located in a T-shaped limiting groove transverse groove and a vertical groove in an initial state under the elastic force of the elastic member The intersection of the structure.
  • the T-shaped limiting slot includes a transverse slot perpendicular to the longitudinal axis of the arbor and a vertical slot parallel to the longitudinal axis of the arbor;
  • the first projection can be at the T-shaped limit
  • the vertical groove of the bit groove slides along the longitudinal axis of the arbor, and the first boss can also slide in a transverse groove of the T-shaped limiting groove in a direction perpendicular to the longitudinal axis of the arbor;
  • the stopper is configured to be slidable in a transverse groove of the T-shaped limiting groove in a vertical groove perpendicular to the longitudinal axis of the shank but not into the T-shaped limiting groove;
  • the stopper Connecting the elastic member, the elastic member can provide an elastic force along a transverse groove direction of the T-shaped limiting groove, and the stopper is located in a T-shaped limiting groove transverse groove in an initial state under the elastic force of the elastic member At the intersection with the vertical channel structure.
  • the first boss is an outer circular boss or an inner circular boss.
  • an ultrasonic surgical instrument with a detachable cannula assembly comprising a cannula assembly and an instrument body, wherein the instrument body comprises a lance that effects ultrasonic cutting; the cannula assembly passes A detachable structure is mounted to or detached from the instrument body along a longitudinal axis of the shank.
  • the cannula assembly includes an inner cannula, an outer cannula, and a distally located clamp.
  • the outer sleeve and the inner sleeve are both disposed coaxially with the cutter shaft; the clamp and the outer sleeve are rotatably connected by a first rotating shaft, and the inner sleeve is rotated by a second rotation
  • the shaft is rotatably coupled such that pulling the inner sleeve back and forth in the axial direction causes the clamp to rotate about the first axis of rotation.
  • the detachable structure includes a first detachable structure and a second detachable structure; a fixed connection is achieved between the instrument body and the sleeve assembly by the first detachable structure, A drive connection is achieved between the instrument body and the cannula assembly by the second detachable structure.
  • a fixed connection is achieved between the instrument body and the outer sleeve by the first detachable structure, and a driving connection is achieved between the instrument body and the inner sleeve by the second detachable structure.
  • the first detachable structure comprises a first boss on the outer sleeve, a first limiting groove on the instrument body, a stopper and an elastic element.
  • the first limiting slot is a T-shaped limiting slot.
  • the sleeve assembly further includes an outer sleeve fixing member and an inner sleeve fixing member; the outer sleeve fixing member is fixedly coupled to the outer sleeve, the inner sleeve fixing member and the inner sleeve Secured together; the first boss is disposed on the outer sleeve fixture.
  • the T-shaped limiting groove includes a transverse groove parallel to the longitudinal axis of the shank and a vertical groove perpendicular to the longitudinal axis of the shank;
  • the first boss can be at the T-shaped limit
  • the transverse groove of the groove slides along the longitudinal axis of the arbor, and the first boss can also slide in a vertical groove of the T-shaped limiting groove in a direction perpendicular to the longitudinal axis of the arbor;
  • the stopper is configured to be slidable in a transverse groove of the T-shaped limiting groove along a longitudinal axis of the shank but not into a vertical groove of the T-shaped limiting groove;
  • An elastic member capable of providing an elastic force along a transverse groove direction of the T-shaped limiting groove, and the stopper is located in a T-shaped limiting groove transverse groove and a vertical groove in an initial state under the elastic force of the elastic member The intersection of the structure.
  • the T-shaped limiting groove includes a transverse groove perpendicular to the longitudinal axis of the shank and a vertical groove parallel to the longitudinal axis of the shank; the first boss can be at the T-shaped limit The vertical groove of the bit groove slides along the longitudinal axis of the arbor, and the first boss can also slide in a transverse groove of the T-shaped limiting groove in a direction perpendicular to the longitudinal axis of the arbor;
  • the stopper is configured to be slidable in a transverse groove of the T-shaped limiting groove in a vertical groove perpendicular to a longitudinal axis of the shank but not into the T-shaped limiting groove, the stopper Connecting the elastic member, the elastic member can provide an elastic force along a transverse groove direction of the T-shaped limiting groove, and the stopper is located in a T-shaped limiting groove transverse groove in an initial state under the elastic force of the elastic member At the intersection with the vertical channel structure.
  • a fixing seat is disposed on the instrument body, and the T-shaped limiting groove is disposed on the fixing seat.
  • the fixing seat is provided with a dial and the elastic member, and the stopper is disposed on the dial, and the dial can drive the stopper to overcome the direction of the transverse groove of the T-shaped limiting slot.
  • the elastic force of the elastic member moves to cause the stopper to open the intersection of the lateral groove and the vertical groove of the T-shaped limiting groove.
  • the dial wheel drives the stopper to overcome the elastic force of the elastic element along the transverse groove direction of the T-shaped limiting groove to open the T-shaped limiting groove and the vertical groove and the vertical groove.
  • the intersection allows the first boss to be slid into or from the vertical groove of the T-shaped stop groove, and then the dial can be
  • the elastic member moves the stopper to move along the transverse groove direction of the T-shaped limiting groove so that the stopper is located at the intersection of the lateral groove and the vertical groove of the T-shaped limiting groove, thereby The first boss cannot slide out of the vertical slot or the transverse slot, whereby a fixed connection between the instrument body and the outer sleeve can be achieved.
  • first boss is an outer circular boss or an inner circular boss.
  • the second detachable structure includes a second stop groove on the sleeve assembly and a second boss on the instrument body.
  • the second limiting slot is an L-shaped limiting slot.
  • the L-shaped limiting slot is located on the inner sleeve.
  • the lateral groove of the L-shaped limiting groove is along the axis of the arbor, the vertical groove of the L-shaped limiting groove is perpendicular to the longitudinal axis of the arbor; the second protruding portion is The transverse groove of the L-shaped limiting groove slides in the direction of the longitudinal axis of the arbor and slides in the vertical groove of the L-shaped limiting groove in a direction perpendicular to the longitudinal axis of the arbor.
  • the vertical groove of the L-shaped limiting groove is along the longitudinal axis of the arbor, and the lateral groove of the L-shaped limiting groove is perpendicular to the longitudinal axis direction of the arbor; the second convex The table is slidable in the vertical groove of the L-shaped limiting groove along the longitudinal axis of the arbor and in the transverse groove of the L-shaped limiting groove in a direction perpendicular to the longitudinal axis of the shank.
  • the instrument body is connected with a driving base, and the second protruding platform is disposed on the driving seat; the driving seat and the second protruding platform can be driven by a manual mechanism on the instrument body along the arbor The axis direction moves back and forth.
  • the second detachable structure moves during movement of the first detachable structure during installation or removal of the cannula assembly and the instrument body.
  • the second boss of the second detachable structure when the first boss on the first detachable structure just enters the T-shaped limiting slot, the second boss of the second detachable structure also just enters the L a limiting slot; when the first boss on the first detachable structure enters the intersection of the lateral slot of the T-shaped limiting slot and the vertical slot, the second of the second detachable structure The boss also enters the intersection of the transverse groove of the L-shaped limiting groove and the vertical groove; when the outer sleeve is rotated, the first boss on the first detachable structure is completely from the T-shaped When the transverse groove of the limiting groove enters the vertical groove or enters the horizontal groove from the vertical groove, the inner sleeve also rotates, so that the second boss of the second detachable structure is also completely from the L shape The lateral groove of the limiting groove enters the vertical groove or enters the horizontal groove from the vertical groove.
  • the second boss is an outer circular boss or an inner circular boss.
  • the first detachable structure and the second detachable structure are interchangeable, that is, the first detachable structure includes a second boss and the L-shaped limiting slot.
  • the positions of the first boss and the T-shaped limiting slot are reversed.
  • the positions of the second boss and the L-shaped limiting slot are reversed.
  • a detachable ultrasonic surgical instrument comprising a detachable cannula assembly and an instrument body, wherein the instrument body comprises a non-removable inner cannula and is capable of ultrasonic cutting a shank; the detachable sleeve assembly can be mounted or detached from the instrument body along the arbor axis.
  • the detachable sleeve assembly includes an outer sleeve, a detachable inner sleeve, and a distally located clamp; the outer sleeve and the detachable inner sleeve are disposed coaxially with the arbor;
  • the clamp and the outer sleeve are rotatably coupled by the first rotating shaft, and are rotatably coupled to the detachable inner sleeve by the second rotating shaft, so that the detachable inner sleeve is pulled back and forth in the axial direction
  • the clamp can be driven to rotate about the first axis of rotation.
  • the detachable structure includes a first detachable structure and a second detachable structure; a fixed connection is achieved between the instrument body and the detachable sleeve assembly by the first detachable structure, A drive connection is achieved between the instrument body and the detachable sleeve assembly by the second detachable structure.
  • the detachable inner sleeve is located at a distal end of the detachable sleeve assembly, the outer sleeve extending from a proximal end to a distal end of the detachable sleeve assembly.
  • the first detachable structure includes a first boss, a first limiting groove, a stopper and an elastic element.
  • a drive connection is achieved between the non-removable inner sleeve of the instrument body and the detachable inner sleeve of the sleeve assembly by the second detachable structure.
  • the second detachable structure includes a second limiting slot on the detachable sleeve assembly and a second boss on the instrument body.
  • the second limiting slot is an L-shaped limiting slot.
  • the L-shaped limiting slot is located on the detachable inner sleeve, and the second boss is located on the non-detachable inner sleeve of the instrument body.
  • non-removable inner sleeve is sealed with the arbor by a distal seal; the non-removable inner sleeve is sealed with the detachable sleeve assembly by a proximal seal.
  • distal sealing ring is a silicone ring.
  • distal seal ring and the arbor are provided with a shoulder on one of their sealing joints, and the other is provided with a full circumference groove structure, the shoulder and the full circumference groove structure work close with.
  • the proximal end of the non-removable inner sleeve is provided with an inner sleeve fixing member, the proximal sealing ring being mounted in the groove of the inner sleeve fixing member and interposed between the inner sleeve fixing members Between the outer sleeve and the outer sleeve.
  • the first detachable structure and the second detachable structure are the same as described above in relation to the first aspect and the second aspect of the present application.
  • the mounting or dismounting process of the detachable sleeve assembly and the instrument body is substantially the same as described above with respect to the first aspect and the second aspect of the present application, blocked and pushed by the first detachable structure, in the detachable sleeve assembly and
  • the second detachable structure moves during movement of the first detachable structure during installation or removal of the instrument body; in particular, when the first boss on the first detachable structure is about to enter When the first limiting slot is described, the second boss of the second detachable structure also enters the L-shaped limiting slot; when the first boss on the first detachable structure When entering the intersection of the transverse groove of the T-shaped limiting groove and the vertical groove, the second protrusion of the second detachable structure also enters the intersection of the horizontal groove and the vertical groove of the L-shaped limiting groove; When the outer sleeve fixing member is rotated such that the first boss on the first detachable structure completely enters the vertical groove from the
  • the non-detachable inner sleeve and the detachable inner sleeve complete the driving connection, and the driving control of the sleeve assembly by the instrument body can be realized.
  • the detachable sleeve assembly is detached from the instrument body, it is the reverse process of the above process, and will not be described herein.
  • the second boss is an outer circular boss or an inner circular boss.
  • the first detachable structure and the second detachable structure are interchangeable, that is, the first detachable structure includes a second boss and the L-shaped limiting slot.
  • the positions of the first boss and the T-shaped limiting slot are reversed.
  • the positions of the second boss and the L-shaped limiting slot are reversed.
  • the cannula assembly is detachably connected to the instrument body, and is easily disassembled for cleaning after use, thereby being reusable, thereby solving the problem that the mainstream ultrasonic surgical instruments on the market are not easy to use. Cleaning, can not be reused, can significantly reduce the cost of using the device. Moreover, compared with other embodiments, the utility model has the advantages of simple structure, convenient assembly and disassembly, and low use cost.
  • Figure 1 is a schematic illustration of a detachable ultrasonic surgical system
  • FIG. 2 is a schematic view of an ultrasonic surgical instrument in accordance with a first embodiment of the present application, wherein the cannula assembly has been detached from the instrument body;
  • Figure 3 is a schematic structural view of the bushing assembly of Figure 2;
  • Figure 4 is a schematic view of the connection of the cannula assembly of Figure 2 to the instrument body, wherein the cannula assembly is not fully loaded into the instrument body;
  • Figure 5 is a schematic view of the first detachable structure of Figure 2, wherein the first boss just enters the T-shaped limiting slot;
  • Figure 6 is a schematic view of the first detachable structure of Figure 2, wherein the first boss enters the T-shaped limit groove transverse groove and the vertical groove intersection;
  • Figure 7 is a schematic view of the first detachable structure of Figure 2, wherein the first boss enters a half position of the vertical slot of the T-shaped limiting slot;
  • Figure 8 is a schematic view of the first detachable structure of Figure 2, the first boss enters the T-shaped limit groove vertical groove and is blocked by the stopper;
  • Figure 9 is a schematic view of the second detachable structure of Figure 2, wherein the second boss just enters the L-shaped limiting slot;
  • Figure 10 is a schematic view showing the second detachable structure of Figure 2, showing the structure of the second boss and the L-shaped limiting slot;
  • Figure 11 is a schematic view of the second detachable structure of Figure 2, wherein the second boss enters the L-shaped limit groove transverse groove;
  • Figure 12 is a schematic view of the second detachable structure of Figure 2, wherein the second boss enters the L-shaped limit groove vertical groove;
  • Figure 13 is a cross-sectional view showing the structure of the cannula assembly and the instrument body of the ultrasonic surgical instrument of Figure 2;
  • Figure 14 is a schematic illustration of an ultrasonic surgical instrument in accordance with a second embodiment of the present application, wherein the cannula assembly has been detached from the instrument body;
  • Figure 15 is a schematic structural view of the bushing assembly of Figure 14;
  • Figure 16 is a view showing the structure of the non-detachable inner sleeve seal of Figure 14;
  • Figure 17 is a schematic view of the first detachable structure of Figure 14 in which the first boss just enters the T-shaped limiting slot;
  • Figure 18 is a schematic view of the first detachable structure of Figure 14: a schematic view of the first boss entering the T-shaped limiting axial slot and the axial slot intersection;
  • Figure 19 is a schematic view of the first detachable structure of Figure 14 in which the first boss enters a half position of the axial groove of the T-shaped stop groove;
  • Figure 20 is a schematic view of the first detachable structure of Figure 14 in which the first boss enters the axial groove of the T-shaped stop groove and is blocked by the stopper;
  • FIG. 21 is a schematic view of the second detachable structure of FIG. 14 : a schematic view of the second boss not entering the L-shaped limiting slot;
  • FIG. 22 is a schematic view of the second detachable structure of FIG. 14 : a schematic structural view of the second boss entering the L-shaped limiting slot;
  • FIG. 23 is a schematic view of the second detachable structure of FIG. 14 : a schematic view of the second boss entering the axial groove of the L-shaped limiting groove;
  • Figure 24 is a schematic view of the second detachable structure of Figure 14: a schematic view of the second boss entering the axial slot of the L-shaped stop slot.
  • proximal refers to the end of the operator that is near the operator after the operator holds the instrument
  • distal refers to the end of the operator that is remote from the operator after holding the instrument
  • a cannula detachable ultrasonic surgical system in accordance with the present application is shown, including an ultrasonic frequency generator 1, a transducer 2, and a surgical instrument 3.
  • the ultrasonic frequency generator 1 emits an oscillating electric signal and transmits it to the transducer 2, which converts the oscillating electric signal into mechanical vibration and transmits it to the surgical instrument 3, and the surgical instrument 3 utilizes the mechanical vibration of the transducer 2
  • the tissue is cut or coagulated.
  • the surgical instrument 3 includes an instrument body 14 and a cannula assembly 15.
  • the instrument body 14 includes a shank 16 that transmits mechanical vibration of the transducer 2 to the cutting head (cutting portion of the shank head); the ferrule assembly 15 can be mounted to the instrument body 14 along the axis of the shank 16 Or detached from the instrument body 14.
  • the cannula assembly 15 of Figure 2 has been detached from the instrument body 14.
  • Figure 3 shows the detailed construction of the sleeve assembly 15 according to the present application, the sleeve assembly 15 comprising a clamp 151 at the distal end and forming a clamping structure with the cutter head, an inner sleeve 152, an outer sleeve 153, a jacket Tube fixture 154 and inner sleeve fixture 155.
  • the inner sleeve 152 and the outer sleeve 153 are both disposed coaxially with the shank 16 .
  • the outer sleeve fixing member 154 is fixedly coupled to the outer sleeve 153, and the sleeve fixing member 55 and the inner sleeve 152 are fixedly fixed together, and the fixing manner can be selected according to different materials of each part.
  • the clamp 151 is rotatably coupled to the outer sleeve 153 via the first rotary shaft 157 and rotatably coupled to the inner sleeve 152 via the second rotary shaft 156.
  • the inner sleeve fixing member 155 is pulled back and forth in the axial direction, and the clamping jaw 151 can be rotated around the rotating shaft 157, so that the sleeve assembly 15 can be assembled to the instrument body 14 through the instrument body.
  • the action of the clamp 151 being opened or closed relative to the cutter head of the cutter bar 16.
  • the cutter head cooperates with the clamp 151 to clamp the tissue and perform ultrasonic cutting and hemostasis of the clamped tissue; the sleeve assembly 15 isolates the cutter bar 16 from the outside to protect the cutter bar.
  • Figure 4 is a schematic illustration of the connection of the cannula assembly to the instrument body, wherein the cannula assembly 15 is not fully loaded into the instrument body 14; the shank 16 on the instrument body 14 is required to be threaded into the cannula assembly 15 until the blade is threaded out.
  • the mounting or detaching function between the cannula assembly 15 and the instrument body 14 is achieved by the first detachable structure 31 and the second detachable structure 32.
  • the first detachable structure 31 is as shown in FIG. 5 to FIG. 8
  • the first detachable structure 31 is a fixed connection structure between the instrument body 14 and the sleeve assembly 15 , and can fix the instrument body 14 and the sleeve assembly 15 .
  • the second detachable structure 32 is shown in FIG. 9 to FIG.
  • the second detachable structure 32 is a driving connection structure of the instrument body 14 and the sleeve assembly 15 , and the clamp of the sleeve body 15 of the instrument body 14 can be realized. 151 drive control.
  • the second detachable structure 32 is disposed coaxially with the first detachable structure 31 and is finitely movable axially relative to the first detachable structure 31 along the shank 16.
  • the first detachable structure 31 includes a first boss 312 at a proximal end of the cannula assembly 15, and a T on the instrument body 14.
  • the position limiting groove 311, the stopper 313 and the elastic member 314 can be easily understood by those skilled in the art that the positions of the first boss and the T-shaped limiting groove 311, the stopper 313 and the elastic member 314 can be reversed, that is, the first convex
  • the table is disposed on the instrument body 14, and the T-shaped limiting groove 311, the stopper 313 and the elastic member 314 are disposed on the sleeve assembly 15.
  • the housing 141 of the instrument body 14 is provided with a fixing seat 3110.
  • the T-shaped limiting slot 311 is disposed on the fixing base 3110.
  • the T-shaped limiting slot 311 includes a transverse slot parallel to the longitudinal axis of the tool holder. 3111 and a vertical groove 3112 perpendicular to the longitudinal axis of the shank; the first boss 312 is disposed on the outer sleeve fixing member 154.
  • the first boss 312 can slide in the axial direction of the arbor in the lateral groove 3111 of the T-shaped limiting slot, and the first boss 312 can also be vertically in the T-shaped limiting slot.
  • the groove 3112 slides in an axial direction perpendicular to the arbor; the stopper 313 is slidable in the axial direction of the arbor in the lateral groove 3111 of the T-shaped limiting groove, but the stopper 313 It is not possible to enter the vertical groove 3112 of the T-shaped limit groove.
  • the stopper 313 is connected to the elastic member 314, and the elastic member 314 can provide an elastic force along the transverse groove 3111 of the T-shaped limiting groove, and the stopper is in an initial state under the elastic force of the elastic member 314. It is located at the intersection of the transverse groove of the T-shaped limit groove and the structure of the vertical groove.
  • the housing 141 of the instrument body 14 is provided with a fixing base 3110.
  • the fixing base 3110 is provided with a dial 3130 and the elastic member 314.
  • the T-shaped limiting slot 311 is disposed on the fixing base 3110.
  • Block 313 is disposed on the dial 3130.
  • FIG. 5 shows that the first boss 312 is just entering the T-shaped limiting slot 311.
  • the stopper 313 is located at the intersection of the T-shaped limiting groove lateral groove 3111 and the vertical groove 3112 under the elastic force of the elastic member 314, and closes the outlet of the vertical groove 3112.
  • FIG. 6 illustrates the case where the first boss 312 enters the intersection of the lateral groove 3111 and the vertical groove 3112.
  • the disassembly process can be completed in 3111. During this process, as the first boss 312 moves distally from the intersection of the transverse groove 3111 and the vertical groove 3112 along the transverse groove, the stopper 313 returns to the lateral groove 3111 and the vertical under the elastic force of the elastic member 314. The intersection of the slots 3112.
  • a plurality of first detachable structures 31 can be disposed on the proximal end of the cannula assembly 15 and on the instrument body 14.
  • the plurality of first detachable structures 31 are axially symmetric with the shank 16. The specific embodiments are all within the scope of protection of the present application.
  • the second detachable structure 32 includes an L-shaped limiting groove 321 and an instrument body 14 on the inner cannula fixing member 155.
  • the second boss 322. It will be readily apparent to those skilled in the art that the positions of the second boss and the L-shaped limit slot can be reversed.
  • the device body 14 is connected to the driving base 3220, and the second boss 322 is disposed on the driving base 3220; the driving base 3220 and the second boss 322 can be driven by the manual mechanism on the instrument body 14 along the arbor The 16 axis direction moves back and forth.
  • the inner sleeve fixing member 155 has a plurality of L-shaped limiting slot structures 321 and a plurality of driving seats 3220. Second bosses 322.
  • FIG. 9 illustrates the mounting process of the second detachable structure 32, blocked and pushed by the first detachable structure 31, and the second detachable structure during installation or removal of the ferrule assembly 15 and the instrument body 14.
  • 32 moves as the first detachable structure 31 moves.
  • the second boss 322 of the second detachable structure 32 is also just The L-shaped limiting slot 321 is entered.
  • FIG. 9 illustrates the mounting process of the second detachable structure 32, blocked and pushed by the first detachable structure 31, and the second detachable structure during installation or removal of the ferrule assembly 15 and the instrument body 14.
  • the second boss 322 of the second detachable structure 32 when the first boss 312 on the first detachable structure 31 completely enters the lateral groove 3111 of the T-shaped limiting slot 311, the second boss 322 of the second detachable structure 32 also enters the L completely.
  • the lateral groove of the limiting groove 321 is shaped.
  • the inner sleeve fixing member 155 when the outer sleeve fixing member 154 is rotated such that the first boss 312 on the first detachable structure 31 completely enters the vertical groove 3112 of the T-shaped limiting groove 311, the inner sleeve fixing member 155 also follows The rotation of the second boss 322 of the second detachable structure 32 also completely enters the vertical groove of the L-shaped limiting groove 321 .
  • the inner sleeve fixing member 155 and the driving base 3220 complete the driving connection, and the driving control of the sleeve assembly 15 by the instrument body 14 can be realized.
  • the cannula assembly 15 is detached from the instrument body 14, it is the reverse process of the above process, and will not be described again here.
  • the second detachable structure 32 can be provided with one or more.
  • the plurality of second detachable structures 32 are symmetrically arranged with the arbor 16 as an axis, and the specific The embodiments are all within the scope of protection of the present application.
  • Figure 13 is a cross-sectional view showing the structure of the sleeve assembly 15 and the instrument body 14 after installation.
  • the outer sleeve fixing member 154 and the fixing base 3110 are connected by the first detachable structure 31, and the inner sleeve fixing member can be seen in more detail.
  • 155 is structural detail that is coupled to the drive block 3220 by the second detachable structure 32.
  • Figure 1424 depicts a cannula detachable ultrasonic surgical instrument in accordance with a second embodiment of the present application.
  • the overall structure of the cannula detachable ultrasonic surgery system of this embodiment is the same as that of the first embodiment system, as shown in FIG. 1, including the ultrasonic frequency generator 1, the transducer 2, and the surgical instrument 3.
  • the ultrasonic frequency generator 1 emits an oscillating electric signal and transmits it to the transducer 2, which converts the oscillating electric signal into mechanical vibration and transmits it to the surgical instrument 3, and the surgical instrument 3 utilizes the mechanical vibration of the transducer 2
  • the tissue is cut or coagulated.
  • the surgical instrument 3 includes an instrument body 24 and a detachable cannula assembly 25.
  • the instrument body 24 includes a non-removable inner sleeve 26 and a shank 27 capable of ultrasonic cutting; the sleeve assembly 25 can be mounted or detached from the instrument body 24 along the axis of the shank 27.
  • Figure 15 shows the detailed construction of the sleeve assembly 25, the distal end of the sleeve assembly 25 including a clamp 251 that forms a clamping structure with the cutter head, a detachable inner sleeve 253, and a first rotary shaft 255.
  • the proximal end of the cannula assembly 25 includes an outer cannula fixture 254 that also includes an outer cannula 252 that extends from a proximal end to a distal end.
  • the outer sleeve 252 and the detachable inner sleeve 253 are disposed coaxially with the shank 27.
  • the outer sleeve fixing member 254 is fixedly connected to the outer sleeve 252, and the fixing manner can be selected according to different materials of each part, such as co-injection, gluing, welding or interference connection, or well-known to those skilled in the art. Other ways.
  • the clamp 251 is rotatably coupled to the outer sleeve 252 by the first rotary shaft 255 and rotatably coupled to the detachable inner sleeve 253 via the second rotary shaft 2511.
  • the detachable inner sleeve 253 is pulled back and forth in the axial direction, and the clamp 251 can be rotated around the first rotating shaft 255, so that the sleeve assembly 25 can be assembled after being assembled to the instrument body 24.
  • the instrument body 24 is operable to open or close the jaws 251 relative to the blades of the shank 27.
  • the cutter head of the cutter bar 27 cooperates with the clamp 251 to clamp the tissue and ultrasonically cut and stop the held tissue; the removable outer sleeve assembly 25 isolates the cutter bar 27 from the outside to protect the cutter bar 27.
  • Figure 16 shows a seal view between the non-removable inner sleeve 26 and the shank 27 and the non-removable inner sleeve 26 and the detachable sleeve assembly 25.
  • the non-removable inner sleeve 26 includes an inner sleeve 261 and an inner sleeve fixing member 262 that are fixed together.
  • the manner of attachment may be selected by co-injection, gluing, soldering or interference bonding, or other means known to those of ordinary skill in the art, depending on the material of the various parts.
  • the non-removable inner sleeve 26 and the cutter rod 27 are sealed by a distal seal ring 263, and the distal seal ring 263 can be fixed to the cutter rod 27 by encapsulation curing or the like, or can be fixed to the inner sleeve. 261.
  • the outer surface of the shank 27 is provided with a shoulder 271
  • the inner surface of the distal seal 263 is provided with a full circumference groove 2631 which is closely fitted with the full circumference groove 2631.
  • the seal of the non-removable inner sleeve 26 and the detachable sleeve assembly 25 is achieved by the proximal seal ring 264, in particular the inner sleeve retainer 262 is disposed at the proximal end of the non-detachable inner sleeve 26, which A sleeve groove 2621 is disposed on the sleeve fixing member 262, and a proximal seal ring 264 is disposed in the rolling groove 2621, so that the proximal seal ring 264 is fixed in the outer sleeve when the clamp 251 is closed and opened.
  • the piece 254 rolls into the gap with the inner sleeve retainer 262 to avoid sliding wear of the proximal seal 264.
  • the mounting or dismounting function between the instrument body 24 and the detachable sleeve assembly 25 is achieved by the first detachable structure 41 and the second detachable structure 42.
  • the first detachable structure 41 is as shown in FIG. 17 to FIG. 20
  • the first detachable structure 41 is a fixed connection structure between the instrument body 24 and the sleeve assembly 25, and the instrument body 24 and the sleeve assembly can be 25 fixed connection
  • the second detachable structure 42 is shown in FIG. 21 to FIG. 24, and the second detachable structure 42 is a driving connection structure of the instrument body 24 and the sleeve assembly 25, which can realize the instrument body 24 to the sleeve assembly 25.
  • the second detachable structure 42 is coaxial with the first detachable structure 41 and is finitely movable relative to the first detachable structure 41 along the arbor axial direction.
  • the first detachable structure 41 includes a first boss 412 at a proximal end of the detachable cannula assembly 25, and a T on the instrument body
  • the shape limiting groove 411, the stopper 413 and the elastic member 414 It will be readily apparent to those skilled in the art that the positions of the first boss and the T-shaped limiting slot 411 and the stopper 413 can be reversed, that is, the first boss is disposed on the instrument body 4, and the T-shaped limiting slot 411 and the stopper The 413 and the resilient member 28 are disposed on the detachable sleeve assembly 25.
  • the housing 241 of the instrument body 24 is provided with a fixing base 210.
  • the T-shaped limiting slot 411 is disposed on the fixing base 210.
  • the T-shaped limiting slot 411 includes a transverse slot parallel to the longitudinal axis of the tool holder. 4111 and a vertical slot 4112 perpendicular to the longitudinal axis of the shank; the first boss 412 is disposed on the outer sleeve fixture 254.
  • the first boss 412 is slidable in the axial direction of the arbor in the lateral groove 4111 of the T-shaped limiting slot, and the first boss 412 can also be vertically in the T-shaped limiting slot.
  • the groove 4112 slides in an axial direction perpendicular to the arbor; the stopper 413 is slidable in the axial direction of the arbor in the lateral groove 4111 of the T-shaped limiting groove, but the stopper 413 It is not possible to enter the vertical groove 4112 of the T-shaped limiting groove.
  • the stopper 413 is connected to the elastic member 28, and the elastic member 28 can provide an elastic force in the direction of the lateral groove 4111 of the T-shaped limiting groove, and the stopper is located in an initial state under the elastic force of the elastic member 8.
  • the intersection of the T-shaped limiting groove and the vertical groove structure Referring to FIG. 17, the housing 241 of the instrument body 24 is provided with a fixing base 210.
  • the fixing base 210 is provided with a dial 211.
  • the T-shaped limiting slot 411 is disposed on the fixing base 210.
  • the blocking piece 413 is disposed on the dial. 211.
  • FIG. 17 shows that the first boss 412 is just entering the T-shaped stop groove 411.
  • the stopper 413 is located at the intersection of the T-shaped limiting groove lateral groove 4111 and the vertical groove 4112 under the elastic force of the elastic member 28, and closes the outlet of the vertical groove 4112.
  • FIG. 18 illustrates the case where the first boss 412 enters the intersection of the lateral groove 4111 and the vertical groove 4112.
  • the disassembly process can be completed in 4111. During this process, as the first boss 412 moves distally from the intersection of the transverse groove 4111 and the vertical groove 4112 along the transverse groove, the stopper 413 is returned to the lateral groove 4111 and the vertical under the elastic force of the elastic member 28. The intersection of the slots 4112.
  • first detachable structures 41 can be arranged with the arbor 27 as the axis, and the specific embodiments thereof fall within the protection scope of the present application.
  • the second detachable structure 42 includes an L-shaped limiting slot 421 and an instrument body 24 on the detachable inner sleeve 253.
  • the second boss 422 on the non-detachable inner sleeve 261. It will be readily apparent to those skilled in the art that the positions of the second boss and the L-shaped limit slot can be reversed.
  • the detachable inner sleeve 253 has two or more L-shaped limiting groove structures 421, and correspondingly, the instrument body 24 is non-detachable.
  • the inner sleeve 261 has two or more second convex portions. Taiwan 422.
  • the non-detachable inner sleeve 261 and the detachable inner sleeve 253 complete the driving connection, and the driving control of the sleeve assembly 25 by the instrument body 24 can be realized.
  • the cannula assembly 25 is detached from the instrument body 24, it is the reverse of the above process and will not be described again.
  • the second detachable structure 42 can be provided with one or more.
  • the plurality of second detachable structures 42 are arranged symmetrically with the arbor 27 as an axis, and the specific embodiments thereof are all Within the scope of protection of the application.
  • the detachable ultrasonic surgical instrument according to the sleeve assembly of the present application solves the problem that the mainstream ultrasonic surgical instruments on the market are not easy to clean after use and cannot be reused, and the use cost of the device can be significantly reduced.
  • the reusable ultrasonic surgical instruments of the sleeve assembly of the present application are increased in number of components to further reduce the use cost, and the convenience of loading and unloading, the reliability of the overall structure, and the process realization The simplicity is improved.
  • the present application has the advantages of simple structure, convenient assembly and disassembly, and low cost compared with the prior art.

Abstract

本申请提供一种套管组件可拆卸的超声手术器械，包括套管组件和器械本体，其中，所述器械本体包括实现超声切割作用的刀杆。所述套管组件通过可拆卸结构沿所述刀杆的纵轴线安装到所述器械本体上或从所述器械本体上拆卸。本申请还提供一种套管组件可拆卸的超声手术器械，包括可拆卸套管组件和器械本体，其中，所述器械本体包含不可拆卸内套管和能实现超声切割作用的刀杆。本申请的套管组件可拆卸的超声手术器械相比于现有技术来说具有结构简单、装拆方便、使用成本低的优点。

Description

一种套管组件可拆卸的超声手术器械 技术领域
本申请涉及一种外科手术器械，具体涉及一种套管组件可拆卸的超声手术器械。
背景技术
随着微创外科手术的普及，超声手术刀已经成为一种常规的手术器械。超声手术刀通过超声频率发生器使刀头以一定的超声频率进行机械振荡，使组织内的水分子汽化、蛋白质氢键断裂、细胞崩解，从而使得组织被切开或者凝固，还可以使血管闭合。超声手术刀使组织切割和凝血同时完成，并具有较小的侧向热损伤。
超声手术刀主要由超声频率发生器、换能器和手术器械组成。其中，超声频率发生器发出振荡电信号，换能器将振荡电信号转换为机械振动，手术器械利用换能器的机械振动对组织进行切割和凝血。手术器械通常由刀杆、与刀头(刀杆头部的切割部位)构成夹持结构的夹钳、包围在刀杆外部的套管、握柄及抓持机构组成。刀杆将换能器的机械振动传递到刀头；刀头与夹钳配合夹持组织实现切割和凝血功能；套管一方面将刀杆与外部隔离起到保护和支撑刀杆的作用，另一方面与夹钳构成连杆机构能带动夹钳的闭合与张开；握柄及抓持机构由医生手部握持，能操作夹钳张开闭合，且有开关能控制超声频率发生器开始或停止输出振荡电信号。
目前市场上主流的超声手术刀，其手术器械的套管由外套管和内套管组成，刀杆位于内套管之内。内外套管之间、内套管与刀杆之间的间隙比较小。在一台手术完成之后，会有血液或者组织液进入内外套管之间或者内套管与刀杆之间的间隙，因为间隙非常小且狭长，进入间隙之内的血液或者组织液很难被清洗干净。因此即便手术器械的结构与性能依然良好，也不能被再次重复使用，只能作为一次性器械来使用，所以其使用成本非常高昂。
为了让手术器械能够重复多次使用从而降低使用成本，某些方案中将套管、刀杆、夹钳设计成一个可更换的组件结构，只能一次性使用，而其它的零部件可以多次重复使用。这样的设计虽然一定程度上降低了使用成本，但因为套管、刀 杆、夹钳这些零部件的成本占据了手术器械成本的绝大多数，因此成本降低效果非常有限。某些技术方案是将套管和夹钳设计成可更换的组件，只能一次性使用，其它零部件包括刀杆都可以多次重复使用，能够有效降低使用成本。但是该技术方案涉及的零部件较多，安装和拆卸不方便。还有的技术方案将内套管分为近端和远端两部分，远端的内套管与外套管、夹钳一起可拆卸更换，近端的内套管与刀杆、握柄等其它部件可重复使用。但远端内套管的连接结构和近端的外套管的连接结构较复杂，具体实现起来难度较大。
发明内容
为了解决上述技术问题，本申请提供一种套管组件可拆卸的超声手术器械，相对于现有技术具有结构简单、装拆方便、使用成本低的优点。
根据本申请的一方面，提供一种套管组件可拆卸的超声手术器械，包括套管组件和器械本体，其中，所述器械本体包括实现超声切割作用的刀杆；所述套管组件通过可拆卸结构沿所述刀杆的纵轴线安装到所述器械本体上或从所述器械本体上拆卸。
进一步，所述可拆卸结构包括第一可拆卸结构；所述器械本体和所述套管组件之间通过至少一个所述第一可拆卸结构实现固定连接。
进一步，所述第一可拆卸结构包括第一凸台、第一限位槽、挡块及弹性元件。
优选的，所述第一限位槽为T形限位槽。
进一步，所述第一凸台位于所述套管组件上，所述T形限位槽、挡块和弹性元件位于所述器械本体上。可替换地，所述第一凸台位于所述器械本体上，所述T形限位槽、挡块和弹性元件位于所述套管组件上。
在一个具体的实施方式中，所述T形限位槽包括与刀杆纵轴平行的横槽和与刀杆纵轴垂直的竖槽；所述第一凸台可在所述T形限位槽的横槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述T形限位槽的竖槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述T形限位槽的横槽内沿所述刀杆的纵轴线方向滑动但不能进入所述T形限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述T形限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于T形限位槽横槽和竖槽结构的交点处。
在另一个具体的实施方式中，所述T形限位槽包括与刀杆纵轴垂直的横槽和与刀杆纵轴平行的竖槽；所述第一凸台可在所述T形限位槽的竖槽内沿所述刀杆 的纵轴线方向滑动，所述第一凸台也可在所述T形限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述T形限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动但不能进入所述T形限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述T形限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于T形限位槽横槽和竖槽结构的交点处。
优选的，所述第一凸台为外圆凸台或内圆凸台。
根据本申请的第二方面，提供一种套管组件可拆卸的超声手术器械，包括套管组件和器械本体，其中，所述器械本体包括实现超声切割作用的刀杆；所述套管组件通过可拆卸结构沿所述刀杆的纵轴线安装到所述器械本体上或从所述器械本体上拆卸。
进一步，所述套管组件包括内套管、外套管及位于远端的夹钳。所述外套管、所述内套管均与所述刀杆同轴设置；所述夹钳与所述外套管通过第一旋转轴可转动地连接，并与所述内套管通过第二旋转轴可转动地连接，使得沿轴向前后拉动所述内套管可带动夹钳围绕第一旋转轴旋转。
在一个实施方式中，所述可拆卸结构包括第一可拆卸结构及第二可拆卸结构；所述器械本体和所述套管组件之间通过所述第一可拆卸结构实现固定连接，所述器械本体和所述套管组件之间通过所述第二可拆卸结构实现驱动连接。
优选的，所述器械本体和所述外套管之间通过所述第一可拆卸结构实现固定连接，所述器械本体和所述内套管之间通过所述第二可拆卸结构实现驱动连接。
进一步，所述第一可拆卸结构包括位于所述外套管的第一凸台、位于器械本体上的第一限位槽、挡块及弹性元件。
优选的，所述第一限位槽为T形限位槽。
优选地，所述套管组件还包括外套管固定件及内套管固定件；所述外套管固定件与所述外套管固接在一起，所述内套管固定件与所述内套管固接在一起；所述第一凸台设置在所述外套管固定件上。
在一个具体的实施方式中，所述T形限位槽包括与刀杆纵轴线平行的横槽和与刀杆纵轴线垂直的竖槽；所述第一凸台可在所述T形限位槽的横槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述T形限位槽的竖槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述T形限位槽的横槽内沿所述 刀杆的纵轴线方向滑动但不能进入所述T形限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述T形限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于T形限位槽横槽和竖槽结构的交点处。
在另一个具体的实施方式中，所述T形限位槽包括与刀杆纵轴线垂直的横槽和与刀杆纵轴线平行的竖槽；所述第一凸台可在所述T形限位槽的竖槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述T形限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述T形限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动但不能进入所述T形限位槽的竖槽内，所述挡块连接所述弹性元件，所述弹性元件能提供沿所述T形限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于T形限位槽横槽和竖槽结构的交点处。
进一步，所述器械本体上设置固定座，所述T形限位槽设置在所述固定座上。
进一步，所述固定座上安装拨轮和所述弹性元件，所述挡块设置在所述拨轮上，所述拨轮可带动所述挡块沿着T形限位槽横槽方向克服所述弹性元件的弹力移动以使所述挡块打开T形限位槽所述横槽和所述竖槽的交叉口。
进一步，所述拨轮带动所述挡块沿着T形限位槽横槽方向克服所述弹性元件弹力移动以使所述挡块打开T形限位槽所述横槽和所述竖槽的交叉口使得所述第一凸台可由所述T形限位槽的所述横槽滑入所述竖槽或从所述竖槽滑入所述横槽，而后所述拨轮可在所述弹性元件弹力作用下带动所述挡块沿着T形限位槽横槽方向移动以使所述挡块位于所述T形限位槽的所述横槽和所述竖槽的交叉口从而使得所述第一凸台不能从所述竖槽或所述横槽滑出，由此可实现所述器械本体和所述外套管之间的固定连接。
进一步，所述第一凸台为外圆凸台或内圆凸台。
在一个实施方式中，所述第二可拆卸结构包括位于所述套管组件上的第二限位槽和位于所述器械本体上的第二凸台。
优选的，所述第二限位槽为L形限位槽。
优选地，所述L形限位槽位于所述内套管上。
进一步，所述L形限位槽的横槽沿所述刀杆轴线方向，所述L形限位槽的竖槽与所述刀杆纵轴线方向垂直；所述第二凸台可在所述L形限位槽的横槽内沿所 述刀杆的纵轴线方向滑动及在所述L形限位槽的竖槽内沿垂直于所述刀杆的纵轴线方向滑动。
可替换地，所述L形限位槽的竖槽沿所述刀杆的纵轴线方向，所述L形限位槽的横槽与所述刀杆的纵轴线方向垂直；所述第二凸台可在所述L形限位槽的竖槽内沿所述刀杆的纵轴线方向滑动及在所述L形限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动。
优选的，所述器械本体上连接有驱动座，所述第二凸台设置在该驱动座上；所述驱动座及所述第二凸台可由器械本体上的手控机构驱动沿着刀杆轴线方向前后运动。
进一步，在套管组件与器械本体的安装或拆卸过程中所述第二可拆卸结构随着所述第一可拆卸结构的运动而运动。
具体地，当所述第一可拆卸结构上的第一凸台刚要进入所述T形限位槽时，所述第二可拆卸结构的所述第二凸台也刚要进入所述L形限位槽；当所述第一可拆卸结构上的所述第一凸台进入T形限位槽的横槽与竖槽的交点处时，所述第二可拆卸结构的所述第二凸台也进入所述L形限位槽的横槽与竖槽的交点处；当旋转所述外套管，使所述第一可拆卸结构上的所述第一凸台完全从所述T形限位槽的横槽进入竖槽或从竖槽进入横槽时，所述内套管也随之旋转，使得所述第二可拆卸结构的所述第二凸台也完全从所述L形限位槽的横槽进入竖槽或从竖槽进入横槽。
进一步，所述第二凸台为外圆凸台或内圆凸台。
可选地，所述第一可拆卸结构和所述第二可拆卸结构的可互换，即所述第一可拆卸结构包括第二凸台和所述L形限位槽。
可选地，所述第一凸台和所述T形限位槽的位置对换。
可选地，所述第二凸台和所述L形限位槽的位置对换。
根据本申请的第三方面，提供一种套管组件可拆卸的超声手术器械，包括可拆卸套管组件和器械本体，其中，所述器械本体包含不可拆卸内套管和能实现超声切割作用的刀杆；所述可拆卸套管组件能沿刀杆轴线从器械本体上安装或拆卸。
进一步，所述可拆卸套管组件包括外套管、可拆卸内套管、及位于远端的夹钳；所述外套管、所述可拆卸内套管均与所述刀杆同轴设置；所述夹钳与所述外套管通过第一旋转轴可转动地连接，并与所述可拆卸内套管通过第二旋转轴可转 动地连接，使得沿轴向前后拉动所述可拆卸内套管可带动夹钳围绕第一旋转轴旋转。
在一个实施方式中，所述可拆卸结构包括第一可拆卸结构及第二可拆卸结构；所述器械本体和所述可拆卸套管组件之间通过所述第一可拆卸结构实现固定连接，所述器械本体和所述可拆卸套管组件之间通过所述第二可拆卸结构实现驱动连接。
进一步，所述可拆卸内套管位于所述可拆卸套管组件的远端，所述外套管从所述可拆卸套管组件的近端延伸至远端。
进一步，所述第一可拆卸结构包括第一凸台、第一限位槽、挡块及弹性元件。
进一步，所述器械本体的不可拆卸内套管和所述套管组件的可拆卸内套管之间通过所述第二可拆卸结构实现驱动连接。
进一步，所述第二可拆卸结构包括位于所述可拆卸套管组件上的第二限位槽和位于所述器械本体上的第二凸台。
优选的，所述第二限位槽为L形限位槽。
具体地，所述L形限位槽位于所述可拆卸内套管上，所述第二凸台位于所述器械本体的不可拆卸内套管上。
进一步，所述不可拆卸内套管与所述刀杆之间通过远端密封圈密封；所述不可拆卸内套管与所述可拆卸套管组件之间通过近端密封圈密封。
进一步，所述远端密封圈为硅胶环。
进一步，所述远端密封圈与所述刀杆在它们的密封连接处其中一个上设置有轴肩，另一个上设置有全周沟槽结构，所述轴肩与所述全周沟槽结构紧密配合。
在一个实施方式中，所述不可拆卸内套管的近端设置有内套管固定件，所述近端密封圈安装于内套管固定件的沟槽中，并介于内套管固定件与外套管固定件之间。
所述第一可拆卸结构、第二可拆卸结构与上述关于本申请第一方面、第二方面的描述相同。
所述可拆卸套管组件与器械本体的安装或拆卸过程与上述关于本申请第一方面、第二方面的描述基本相同，受第一可拆卸结构的阻挡和推动，在可拆卸套管组件与器械本体的安装或拆卸过程中所述第二可拆卸结构随着所述第一可拆卸结构的运动而运动；具体地，当所述第一可拆卸结构上的第一凸台刚要进入所 述第一限位槽时，所述第二可拆卸结构的所述第二凸台也刚要进入所述L形限位槽；当所述第一可拆卸结构上的所述第一凸台进入T形限位槽的横槽与竖槽的交点处时，所述第二可拆卸结构的所述第二凸台也进入所述L形限位槽的横槽与竖槽的交点处；当旋转可外套管固定件，使所述第一可拆卸结构上的所述第一凸台完全从所述T形限位槽的横槽进入竖槽或从竖槽进入横槽时，所述可拆卸内套管也随之旋转，使所述第二可拆卸结构的所述第二凸台也完全从所述L形限位槽的横槽进入竖槽或从竖槽进入横槽。此时，不可拆卸内套管和可拆卸内套管完成驱动连接，可实现器械本体对套管组件的驱动控制。当可拆卸套管组件从器械本体上拆卸时，是上述过程的反向过程，此处不再赘述。
进一步，所述第二凸台为外圆凸台或内圆凸台。
可选地，所述第一可拆卸结构和所述第二可拆卸结构的可互换，即所述第一可拆卸结构包括第二凸台和所述L形限位槽。
可选地，所述第一凸台和所述T形限位槽的位置对换。
可选地，所述第二凸台和所述L形限位槽的位置对换。
根据本申请的可重复使用的超声手术器械，套管组件与器械本体可拆卸地连接，在使用后方便拆卸开进行清洗，进而可重复使用，解决了市场上主流的超声手术器械使用后不容易清洗，不能重复使用的问题，能显著降低器械的使用成本。并且相对于其他实施方案具有结构简单、装拆方便、使用成本低的优点。
附图说明
图1为套管可拆卸的超声手术系统的示意图；
图2为根据本申请第一实施例的超声手术器械的示意图，其中套管组件已从器械本体上拆卸；
图3为图2中套管组件的结构示意图；
图4为图2中的套管组件与器械本体的连接示意图，其中套管组件未完全装入器械本体；
图5为图2中第一可拆卸结构的示意图，其中第一凸台刚要进入T形限位槽；
图6为图2中第一可拆卸结构的示意图，其中第一凸台进入T形限位槽横槽和竖槽交叉口；
图7为图2中第一可拆卸结构的示意图，其中第一凸台进入T形限位槽竖槽一半位置；
图8为图2中第一可拆卸结构的示意图，其第一凸台进入T形限位槽竖槽且被挡块挡住；
图9为图2中第二可拆卸结构的示意图，其中第二凸台刚要进入L形限位槽；
图10为图2中第二可拆卸结构的示意图，示出了第二凸台与L形限位槽的结构示意图；
图11为图2中第二可拆卸结构的示意图，其中第二凸台进入L形限位槽横槽；
图12为图2中第二可拆卸结构的示意图，其中第二凸台进入L形限位槽竖槽；
图13为图2中超声手术器械的套管组件与器械本体安装后的结构剖面图；
图14为根据本申请第二实施例的超声手术器械的示意图，其中套管组件已从器械本体上拆卸；
图15为图14中套管组件的结构示意图；
图16为图14中不可拆卸内套管密封结构图；
图17为图14中第一可拆卸结构的示意图：其中第一凸台刚要进入T形限位槽；
图18为图14中第一可拆卸结构的示意图：其中第一凸台进入T形限位轴向槽和轴向槽交叉口的示意图；
图19为图14中第一可拆卸结构的示意图：其中第一凸台进入T形限位槽轴向槽一半位置的示意图；
图20为图14中第一可拆卸结构的示意图：其中第一凸台进入T形限位槽轴向槽且被挡块挡住的示意图；
图21为图14中第二可拆卸结构的示意图：其中第二凸台未进入L形限位槽的示意图；
图22为图14中第二可拆卸结构的示意图：其中第二凸台进入L形限位槽的结构示意图；
图23为图14中第二可拆卸结构的示意图：其中第二凸台进入L形限位槽轴向槽的示意图；
图24为图14中第二可拆卸结构的示意图：其中第二凸台进入L形限位槽轴向槽的示意图。
具体实施方式
下面将对发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施例，都属于本申请保护的范围。
为了描述的方便，本申请全文中出现的“近端”是指操作者握持器械后靠近操作者的一端，“远端”是指操作者握持器械后远离操作者的一端。
实施例一
附图1-13对根据本申请第一实施例的套管可拆卸的超声手术器械进行描述。
参见附图1，示出了根据本申请的套管可拆卸的超声手术系统，包括超声频率发生器1、换能器2和手术器械3。其中，超声频率发生器1发出振荡电信号并传递至换能器2，换能器2将振荡电信号转换为机械振动并传递至手术器械3，手术器械3利用换能器2的机械振动对组织进行切割或凝血。
参见附图1、2，手术器械3包括器械本体14和套管组件15。其中，器械本体14包含将换能器2的机械振动传递到刀头(刀杆头部的切割部位)的刀杆16；套管组件15能沿刀杆16轴线安装到所述器械本体14上或从所述器械本体14上拆卸。图2中的套管组件15已从器械本体14上拆卸。
附图3示出了根据本申请的套管组件15的详细结构，套管组件15的包括位于远端并与刀头构成夹持结构的夹钳151、内套管152、外套管153、外套管固定件154及内套管固定件155。其中，所述内套管152、外套管153均与所述刀杆16同轴设置。所述外套管固定件154与所述外套管153固接在一起，内所述套管固定件55与所述内套管152固接在一起，固接方式可根据各零件材料不同而选择共注、胶粘、焊接或者过盈连接等方式或本领域普通技术人员所熟知的其他方式。夹钳151与外套管153通过第一旋转轴157可转动地连接，并与内套管152通过第二旋转轴156可转动地连接。这样，固定外套管固定件154后，沿轴向前后拉动内套管固定件155，可带动夹钳151围绕旋转轴157旋转，从而可实现套管组件15装配到器械本体14后，通过器械本体14可操作夹钳151相对于刀杆16的刀头张开或闭合的动作。刀头与夹钳151配合夹持组织并对被夹持组织进行超声切割和止血；套管组件15将刀杆16与外部隔离起到保护刀杆的作用。
图4是套管组件与器械本体的连接示意图，其中套管组件15未完全装入器 械本体14；需将器械本体14上的刀杆16穿入套管组件15直至刀头穿出。
根据本申请的一种实施方式，套管组件15和器械本体14之间的安装或拆卸功能通过第一可拆卸结构31及第二可拆卸结构32实现。其中，第一可拆卸结构31如图5至图8所示，第一可拆卸结构31为器械本体14和套管组件15之间的固定连接结构，能将器械本体14与套管组件15固定连接；第二可拆卸结构32如图9至图12所示，第二可拆卸结构32为器械本体14和套管组件15的驱动连接结构，可实现器械本体14对套管组件15的夹钳151的驱动控制。第二可拆卸结构32与第一可拆卸结构31同轴设置且可沿刀杆16轴向相对第一可拆卸结构31做有限的移动。
参见图58，根据本申请第一实施例的套管可拆卸的超声手术器械中，第一可拆卸结构31包括位于套管组件15近端的第一凸台312、位于器械本体14上的T形限位槽311、挡块313及弹性元件314，本领域技术人员容易想到，第一凸台与T形限位槽311、挡块313及弹性元件314的位置可对换，即第一凸台设置在器械本体14上，而T形限位槽311、挡块313及弹性元件314设置在套管组件15上。
具体而言，器械本体14的壳体141上设置固定座3110，所述T形限位槽311设置在固定座3110上，所述T形限位槽311包括与刀杆纵轴平行的横槽3111和与刀杆纵轴垂直的竖槽3112；所述第一凸台312设置在外套管固定件154上。所述第一凸台312可在所述T形限位槽的横槽3111内沿所述刀杆的轴线方向滑动，所述第一凸台312也可在所述T形限位槽的竖槽3112内沿垂直于所述刀杆的轴线方向滑动；所述挡块313可在所述T形限位槽的横槽3111内沿所述刀杆的轴线方向滑动，但所述挡块313不能进入所述T形限位槽的竖槽3112内。所述挡块313连接所述弹性元件314，所述弹性元件314能提供沿所述T形限位槽横槽3111方向的弹力，在该弹性元件314的弹力作用下所述挡块在初始状态下位于T形限位槽横槽和竖槽结构的交点处。参见图5，器械本体14的壳体141上设置固定座3110，固定座3110上安装拨轮3130和所述弹性元件314，所述T形限位槽311设置在固定座3110上，所述挡块313设置在拨轮3130上。
参见图58，其中，图5示出第一凸台312刚要进入T形限位槽311。初始状态下，挡块313在弹性元件314的弹力作用下，位于T形限位槽横槽3111和竖槽3112结构的交点处，封闭竖槽3112的出口。当第一凸台312在外力作用下 向T形限位槽311的横槽3111内部继续滑动时，需要推动挡块313克服弹性元件314的弹力在横槽3111内滑动。图6示意了第一凸台312进入到横槽3111和竖槽3112交叉口时的情形，此时旋转外套管固定件154，可以带动第一凸台312滑入T形限位槽竖槽3112内，图7示出了这一状态。继续旋转外套管固定件154，让第一凸台312完全滑入竖槽3112内，挡块313在弹性元件314的作用下回位到横槽3111和竖槽3112的交叉口，即封闭竖槽3112的出口使得第一凸台312被完全限制在竖槽3112之内，图8描述了这一状态，此时外套管固定件154被固定在固定座3110上，套管组件15与器械本体14通过第一可拆卸结构31完成了固定连接。
套管组件15从器械本体14上拆卸时，基本是图5至图8所描述过程的反向操作。先沿刀杆轴线方向向近端克服弹性元件314的弹力拉动拨轮3130，使得挡块313打开T形限位槽311横槽3111和竖槽3112交叉口，然后转动外套管固定件154，使第一凸台312从T形限位槽311的竖槽3112滑入到横槽3111，然后将套管组件15沿刀杆轴线方向从器械本体14上拉出让第一凸台312滑出横槽3111即可完成拆卸过程。在此过程中，随着第一凸台312从横槽3111和竖槽3112交叉口沿横槽向远侧移动，挡块313在弹性元件314的弹力作用下，回位到横槽3111和竖槽3112的交叉口。
本领域普通技术人员可以理解，可以在套管组件15近端及器械本体14上设置多个第一可拆卸结构31，优选地，多个第一可拆卸结构31以刀杆16为轴心对称设置，其具体实施方式均落在本申请的保护范围内。
参见附图912，根据本申请第一实施例的套管可拆卸的超声手术器械中，第二可拆卸结构32包括位于内套管固定件155上的L形限位槽321和器械本体14上的第二凸台322。本领域技术人员容易想到，第二凸台和L形限位槽的位置可对换。具体而言，器械本体14上连接有驱动座3220，第二凸台322设置在该驱动座3220上；驱动座3220及第二凸台322可由器械本体14上的手控机构驱动沿着刀杆16轴线方向前后运动。
图10示出L形限位槽321和第二凸台322的详细结构示意图，从图中可见，内套管固定件155上有多个L形限位槽结构321，驱动座3220上有多个第二凸台322。
图9、11、12示出第二可拆卸结构32的安装过程，受第一可拆卸结构31的 阻挡和推动，在套管组件15与器械本体14的安装或拆卸过程中第二可拆卸结构32随着第一可拆卸结构31的运动而运动。具体而言，如图9所示，当第一可拆卸结构31上的第一凸台312刚要进入T形限位槽311时，第二可拆卸结构32的第二凸台322也刚要进入L形限位槽321。如图11所示，当第一可拆卸结构31上的第一凸台312完全进入T形限位槽311的横槽3111时，第二可拆卸结构32的第二凸台322也完全进入L形限位槽321的横槽。如图12所示，当旋转外套管固定件154，使第一可拆卸结构31上的第一凸台312完全进入T形限位槽311的竖槽3112时，内套管固定件155也随之旋转，使得第二可拆卸结构32的第二凸台322也完全进入L形限位槽321的竖槽内。此时，内套管固定件155和驱动座3220完成驱动连接，可实现器械本体14对套管组件15的驱动控制。当套管组件15从器械本体14上拆卸时，是上述过程的反向过程，此处不再赘述。
本领域普通技术人员可以理解，第二可拆卸结构32可设置一个或多个，优选地，如图10所示，多个第二可拆卸结构32以刀杆16为轴心对称布置，其具体实施方式均落在本申请的保护范围内。
图13示出套管组件15与器械本体14安装后的结构剖面图，从图中能更详细看清楚外套管固定件154与固定座3110通过第一可拆卸结构31连接、内套管固定件155与驱动座3220通过第二可拆卸结构32连接的结构细节。
实施例二
附图1424对根据本申请第二实施例的套管可拆卸的超声手术器械进行描述。
该实施例的套管可拆卸的超声手术系统整体结构与第一实施例系统，如图1所示，包括超声频率发生器1、换能器2和手术器械3。其中，超声频率发生器1发出振荡电信号并传递至换能器2，换能器2将振荡电信号转换为机械振动并传递至手术器械3，手术器械3利用换能器2的机械振动对组织进行切割或凝血。
参见附图14，手术器械3包括器械本体24和可拆卸套管组件25。其中，器械本体24包含不可拆卸内套管26和能实现超声切割作用的刀杆27；套管组件25能沿刀杆27轴线从器械本体24上安装或拆卸。
图15示出了所述套管组件25的详细结构，套管组件25远端包括与刀头构成夹持结构的夹钳251、可拆卸内套管253及第一旋转轴255。套管组件25的近端包括外套管固定件254，套管组件25还包括从近端延伸至远端外套管252。所 述外套管252、可拆卸内套管253均与所述刀杆27同轴设置。所述外套管固定件254与所述外套管252固接在一起，固接方式可根据各零件材料不同而选择共注、胶粘、焊接或者过盈连接等方式或本领域普通技术人员所熟知的其他方式。夹钳251与外套管252通过第一旋转轴255可转动地连接，并与可拆卸内套管253通过第二旋转轴2511可转动地连接。这样，固定外套管固定件254后，沿轴向前后拉动可拆卸内套管253，可带动夹钳251围绕第一旋转轴255旋转，从而可实现套管组件25装配到器械本体24后，通过器械本体24可操作夹钳251相对于刀杆27的刀头张开或闭合的动作。刀杆27的刀头与夹钳251配合夹持组织并对被夹持组织进行超声切割和止血；可拆除外套管组件25将刀杆27与外部隔离起到保护刀杆27的作用。
图16示出不可拆卸内套管26与刀杆27以及不可拆卸内套管26与可拆卸套管组件25之间的密封结构图。其中，不可拆卸内套管26包括固接在一起的内套管261和内套管固定件262。固接方式可根据各零件材料不同而选择共注、胶粘、焊接或者过盈连接等方式或本领域普通技术人员所熟知的其他方式。不可拆卸内套管26与刀杆27之间通过远端密封圈263密封，所述远端密封圈263可以通过包胶固化等形式固接在刀杆27上，也可以固接在内套管261上。优选地，刀杆27外表面设置轴肩271，远端密封圈263的内表面设置全周沟槽2631，所述轴肩271与所述全周沟槽2631紧密配合。不可拆卸内套管26与可拆卸套管组件25的密封通过近端密封圈264实现，具体地，所述内套管固定件262设置在所述不可拆卸内套管26的近端，该内套管固定件262上设置滚动槽2621，近端密封圈264位于所述滚动槽2621中，从而在实现夹钳251闭合与张开功能时，所述近端密封圈264在所述外套管固定件254与内套管固定件262间隙内滚动，从而避免滑动磨损近端密封圈264。
根据本申请的一种实施方式，器械本体24和可拆卸套管组件25之间的安装或拆卸功能通过第一可拆卸结构41及第二可拆卸结构42实现。其中，第一可拆卸结构41如图17至图20所示，所述第一可拆卸结构41是器械本体24和套管组件25之间的固定连接结构，能将器械本体24与套管组件25固定连接；第二可拆卸结构42如图21至图24所示，第二可拆卸结构42是器械本体24和套管组件25的驱动连接结构，可实现器械本体24对套管组件25的夹钳251的驱动控制。第二可拆卸结构42与第一可拆卸结构41同轴且可沿刀杆轴向相对第一可 拆卸结构41做有限的移动。
参见图1720，根据本申请第二实施例的套管可拆卸的超声手术器械中，第一可拆卸结构41包括可拆卸套管组件25近端的第一凸台412，位于器械本体上的T形限位槽411、及挡块413及弹性元件414。本领域技术人员容易想到，第一凸台与T形限位槽411及挡块413的位置可对换，即第一凸台设置在器械本体4上，而T形限位槽411、挡块413及弹性元件28设置在可拆卸套管组件25上。
具体而言，器械本体24的壳体241上设置固定座210，所述T形限位槽411设置在固定座210上，所述T形限位槽411包括与刀杆纵轴平行的横槽4111和与刀杆纵轴垂直的竖槽4112；所述第一凸台412设置在外套管固定件254上。所述第一凸台412可在所述T形限位槽的横槽4111内沿所述刀杆的轴线方向滑动，所述第一凸台412也可在所述T形限位槽的竖槽4112内沿垂直于所述刀杆的轴线方向滑动；所述挡块413可在所述T形限位槽的横槽4111内沿所述刀杆的轴线方向滑动，但所述挡块413不能进入所述T形限位槽的竖槽4112内。所述挡块413连接弹性元件28，所述弹性元件28能提供沿所述T形限位槽横槽4111方向的弹力，在该弹性元件8的弹力作用下所述挡块在初始状态下位于T形限位槽横槽和竖槽结构的交点处。参见图17，器械本体24的壳体241上设置固定座210，固定座210上安装拨轮211，所述T形限位槽411设置在固定座210上，所述挡块413设置在拨轮211上。
参见图1720，其中，图17示出第一凸台412刚要进入T形限位槽411。初始状态下，挡块413在弹性元件28的弹力作用下，位于T形限位槽横槽4111和竖槽4112结构的交点处，封闭竖槽4112的出口。当第一凸台412在外力作用下向T形限位槽411的横槽4111内部继续滑动时，需要推动挡块413克服弹性元件28的弹力在横槽4111内滑动。图18示意了第一凸台412进入到横槽4111和竖槽4112交叉口时的情形，此时旋转外套管固定件254，可以带动第一凸台312滑入T形限位槽竖槽4112内，图19示出了这一状态。继续旋转外套管固定件254，让第一凸台412完全滑入竖槽4112内，挡块413在弹性元件8的作用下回位到横槽4111和竖槽4112的交叉口，即封闭竖槽4112的出口使得第一凸台412被完全限制在竖槽4112之内，图20描述了这一状态，此时外套管固定件254被固定在固定座210上，套管组件25与器械本体24通过第一可拆卸结构41完成了固定连接。
套管组件25从器械本体24上拆卸时，基本是图17至图20所描述过程的反向操作。先沿刀杆轴线方向向近端克服弹性元件28的弹力拉动拨轮211，使得挡块413打开T形限位槽411横槽4111和竖槽4112交叉口，然后转动外套管固定件254，使第一凸台412从T形限位槽411的竖槽4112滑入到横槽4111，然后将套管组件25沿刀杆轴线方向从器械本体24上拉出让第一凸台412滑出横槽4111即可完成拆卸过程。在此过程中，随着第一凸台412从横槽4111和竖槽4112交叉口沿横槽向远侧移动，挡块413在弹性元件28的弹力作用下，回位到横槽4111和竖槽4112的交叉口。
本领域普通技术人员可以理解，以刀杆27为轴心可以布置多个第一可拆卸结构41，其具体实施方式均落在本申请的保护范围内。
参见附图2124，根据本申请第二实施例的套管组件可拆卸的超声手术器械中，第二可拆卸结构42包括位于可拆卸内套管253上的L形限位槽421和器械本体24的不可拆卸内套管261上的第二凸台422。本领域技术人员容易想到，第二凸台和L形限位槽的位置可对换。
图21示出L形限位槽421和第二凸台422的详细结构示意图，图中示出一个L形限位槽结构421和一个第二凸台422。在另一个实施方式中，可拆卸内套管253上有两个或多个L形限位槽结构421，相应地，器械本体24不可拆卸内套管261上有两个或多个第二凸台422。
图22、23、24示出第二可拆卸结构42的安装过程，受第一可拆卸结构41的阻挡和推动，在套管组件25与器械本体24的安装或拆卸过程中第二可拆卸结构42随着第一可拆卸结构41的运动而运动。具体而言，如图22所示，当第一可拆卸结构41上的第一凸台412刚要进入T形限位槽411时，第二可拆卸结构42的第二凸台422也刚要进入L形限位槽421。如图23所示，当第一可拆卸结构41上的第一凸台412完全进入T形限位槽411的横槽4111时，第二可拆卸结构42的第二凸台422也完全进入L形限位槽421的横槽。如图24所示，当旋转外套管固定件254，使第一可拆卸结构41上的第一凸台412完全进入T形限位槽411的竖槽4112时，可拆卸内套253也随之旋转，使得第二可拆卸结构42的第二凸台422也完全进入L形限位槽421的竖槽4211内。此时，不可拆卸内套管261和可拆卸内套管253完成驱动连接，可实现器械本体24对套管组件25的驱动控制。当套管组件25从器械本体24上拆卸时，是上述过程的反向过程，此 处不再赘述。
本领域普通技术人员可以理解，第二可拆卸结构42可设置一个或多个，优选地，多个第二可拆卸结构42以刀杆27为轴心对称布置，其具体实施方式均落在本申请的保护范围内。
需要说明的是，附图中的实施方案仅为本申请比较有代表性的实施例，本领域技术人员容易理解，本申请的保护范围不仅仅限定在附图中实施方式所限定的范围内，对附图中实施方式的组合、变形、变化均落在本申请的保护范围内。
根据本申请的套管组件可拆卸的超声手术器械，解决了市场上主流的超声手术器械使用后不容易清洗，不能重复使用的问题，能显著降低器械的使用成本。并且相对于现有技术中的技术方案，本申请的套管组件可拆卸的超声手术器械中可重复使用的部件增多从而进一步降低使用成本，并且装卸的方便性、整体结构的可靠性、工艺实现的简便性都有提升。总之，本申请相比于现有技术具有结构简单、装拆方便、成本低的优点。
以上所揭露的仅为本申请几种较佳实施例而已，当然不能以此来限定本申请之权利范围，因此依本申请权利要求所作的等同变化，仍属本申请所涵盖范围。

Claims (52)

  1. 一种套管组件可拆卸的超声手术器械，包括套管组件和器械本体，其中，所述器械本体包括实现超声切割作用的刀杆；所述套管组件通过可拆卸结构沿所述刀杆的纵轴线安装到所述器械本体上或从所述器械本体上拆卸。
  2. 根据权利要求1所述的套管组件可拆卸的超声手术器械，所述可拆卸结构包括第一可拆卸结构；所述器械本体和所述套管组件之间通过至少一个所述第一可拆卸结构实现固定连接。
  3. 根据权利要求2所述的套管组件可拆卸的超声手术器械，所述第一可拆卸结构包括第一凸台、第一限位槽、挡块及弹性元件。
  4. 根据权利要求3所述的套管组件可拆卸的超声手术器械，所述第一凸台位于所述套管组件上，所述第一限位槽、挡块及弹性元件位于所述器械本体上。
  5. 根据权利要求4所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴平行的横槽和与刀杆纵轴垂直的竖槽；所述第一凸台可在所述第一限位槽的横槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的竖槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述第一限位槽的横槽内沿所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  6. 根据权利要求4所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴线垂直的横槽和与刀杆纵轴线平行的竖槽；所述第一凸台可在所述第一限位槽的竖槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  7. 根据权利要求3所述的套管组件可拆卸的超声手术器械，所述第一凸台位于所述器械本体上，所述第一限位槽、挡块及弹性元件位于所述套管组 件上。
  8. 根据权利要求7所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴平行的横槽和与刀杆纵轴垂直的竖槽；所述第一凸台可在所述第一限位槽的横槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的竖槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述第一限位槽的横槽内沿所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  9. 根据权利要求7所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴线垂直的横槽和与刀杆纵轴线平行的竖槽；所述第一凸台可在所述第一限位槽的竖槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  10. 根据权利要求5、6、8、9中任一项所述的套管组件可拆卸的超声手术器械，所述套管组件包括内套管、外套管及位于远端的夹钳；所述外套管、所述内套管均与所述刀杆同轴设置；所述夹钳与所述外套管通过第一旋转轴可转动地连接，并与所述内套管通过第二旋转轴可转动地连接，使得沿轴向前后拉动所述内套管可带动夹钳围绕第一旋转轴旋转。
  11. 根据权利要求10所述的套管组件可拆卸的超声手术器械，所述可拆卸结构还包括第二可拆卸结构；所述器械本体和所述套管组件的内套管之间通过至少一个所述第二可拆卸结构实现驱动连接。
  12. 根据权利要求11所述的套管组件可拆卸的超声手术器械，所述第二可拆卸结构包括第二限位槽和第二凸台。
  13. 根据权利要求12所述的套管组件可拆卸的超声手术器械，在套管组件与器械本体的安装或拆卸过程中所述第二可拆卸结构随着所述第一可拆 卸结构的运动而运动；当所述第一可拆卸结构上的第一凸台刚要进入所述第一限位槽时，所述第二可拆卸结构的所述第二凸台也刚要进入所述第二限位槽；当所述第一可拆卸结构上的所述第一凸台进入第一限位槽的横槽与竖槽的交点处时，所述第二可拆卸结构的所述第二凸台也进入所述第二限位槽的横槽与竖槽的交点处；当旋转所述外套管，使所述第一可拆卸结构上的所述第一凸台完全从所述第一限位槽的横槽进入竖槽或从竖槽进入横槽时，所述内套管也随之旋转，使得所述第二可拆卸结构的所述第二凸台也完全从所述第二限位槽的横槽进入竖槽或从竖槽进入横槽。
  14. 根据权利要求13所述的套管组件可拆卸的超声手术器械，所述第二限位槽位于所述内套管上，所述第二凸台位于所述器械本体上。
  15. 根据权利要求14所述的套管组件可拆卸的超声手术器械，所述第二限位槽的横槽沿所述刀杆纵轴线方向，所述第二限位槽的竖槽与所述刀杆纵轴线方向垂直；所述第二凸台可在所述第二限位槽的横槽内沿所述刀杆纵轴线方向滑动及在所述第二限位槽的竖槽内沿垂直于所述刀杆纵轴线方向滑动。
  16. 根据权利要求14所述的套管组件可拆卸的超声手术器械，所述第二限位槽的竖槽沿所述刀杆纵轴线方向，所述第二限位槽的横槽与所述刀杆纵轴线方向垂直；所述第二凸台可在所述第二限位槽的竖槽内沿所述刀杆纵轴线方向滑动及在所述第二限位槽的横槽内沿垂直于所述刀杆纵轴线方向滑动。
  17. 根据权利要求13所述的套管组件可拆卸的超声手术器械，所述第二限位槽位于所述器械本体上，所述第二凸台位于所述内套管上。
  18. 根据权利要求17所述的套管组件可拆卸的超声手术器械，所述第二限位槽的横槽沿所述刀杆纵轴线方向，所述第二限位槽的竖槽与所述刀杆纵轴线方向垂直；所述第二凸台可在所述第二限位槽的横槽内沿所述刀杆纵轴线方向滑动及在所述第二限位槽的竖槽内沿垂直于所述刀杆纵轴线方向滑动。
  19. 根据权利要求17所述的套管组件可拆卸的超声手术器械，所述第二限位槽的竖槽沿所述刀杆纵轴线方向，所述第二限位槽的横槽与所述刀杆纵 轴线方向垂直；所述第二凸台可在所述第二限位槽的竖槽内沿所述刀杆纵轴线方向滑动及在所述第二限位槽的横槽内沿垂直于所述刀杆纵轴线方向滑动。
  20. 根据权利要求15、16、18、19中任一项所述的套管组件可拆卸的超声手术器械，所述套管组件还包括外套管固定件及内套管固定件；所述外套管固定件与所述外套管固接在一起，所述内套管固定件与所述内套管固接在一起。
  21. 根据权利要求20所述的套管组件可拆卸的超声手术器械，所述第一凸台设置在所述外套管固定件上，所述第二限位槽设置在所述内套管固定件上。
  22. 根据权利要求21所述的套管组件可拆卸的超声手术器械，所述器械本体上设置固定座，所述第一限位槽设置在所述固定座上，所述固定座上安装拨轮和所述弹性元件，所述挡块设置在所述拨轮上，所述拨轮可带动所述挡块沿着第一限位槽的横槽方向克服所述弹性元件的弹力移动以使所述挡块打开第一限位槽所述横槽和所述竖槽的交叉口。
  23. 根据权利要求22所述的套管组件可拆卸的超声手术器械，所述器械本体上连接有驱动座，所述第二凸台设置在该驱动座上；所述驱动座及所述第二凸台可由器械本体上的手控机构驱动沿着刀杆轴线方向前后运动。
  24. 如权利要求39、1119、2123中任一项所述的套管组件可拆卸的超声手术器械，所述第一凸台为外圆凸台或内圆凸台。
  25. 如权利要求1219、2123中任一项所述的套管组件可拆卸的超声手术器械，所述第二凸台可为外圆凸台或内圆凸台。
  26. 一种套管组件可拆卸的超声手术器械，包括可拆卸套管组件和器械本体，其中，所述器械本体包含不可拆卸内套管和能实现超声切割作用的刀杆；所述可拆卸套管组件能沿刀杆轴线从器械本体上安装或拆卸。
  27. 根据权利要求26所述的套管组件可拆卸的超声手术器械，所述可拆卸套管组件包括外套管、可拆卸内套管、及位于远端的夹钳；所述外套管、所述可拆卸内套管均与所述刀杆同轴设置；所述夹钳与所述外套管通过第一旋转轴可转动地连接，并与所述可拆卸内套管通过第二旋转轴可转动地连接， 使得沿轴向前后拉动所述可拆卸内套管可带动夹钳围绕第一旋转轴旋转。
  28. 根据权利要求27所述的套管组件可拆卸的超声手术器械，所述可拆卸内套管位于所述可拆卸套管组件的远端，所述外套管从所述可拆卸套管组件的近端延伸至远端。
  29. 根据权利要求26所述的套管组件可拆卸的超声手术器械，所述可拆卸结构包括第一可拆卸结构及第二可拆卸结构；所述器械本体和所述可拆卸套管组件之间通过所述第一可拆卸结构实现固定连接，所述器械本体和所述可拆卸套管组件之间通过所述第二可拆卸结构实现驱动连接。
  30. 根据权利要求29所述的套管组件可拆卸的超声手术器械，所述第一可拆卸结构包括第一凸台、第一限位槽、挡块及弹性元件。
  31. 根据权利要求30所述的套管组件可拆卸的超声手术器械，所述第一凸台位于所述可拆卸套管组件上，所述第一限位槽、挡块及弹性元件位于所述器械本体上。
  32. 根据权利要求31所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴平行的横槽和与刀杆纵轴垂直的竖槽；所述第一凸台可在所述第一限位槽的横槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的竖槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述第一限位槽的横槽内沿所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  33. 根据权利要求31所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴线垂直的横槽和与刀杆纵轴线平行的竖槽；所述第一凸台可在所述第一限位槽的竖槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  34. 根据权利要求30所述的套管组件可拆卸的超声手术器械，所述第一凸台位于所述器械本体上，所述第一限位槽、挡块及弹性元件位于所述可拆卸套管组件上。
  35. 根据权利要求34所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴平行的横槽和与刀杆纵轴垂直的竖槽；所述第一凸台可在所述第一限位槽的横槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的竖槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述T形限位槽的横槽内沿所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  36. 根据权利要求34所述的套管组件可拆卸的超声手术器械，所述第一限位槽包括与刀杆纵轴线垂直的横槽和与刀杆纵轴线平行的竖槽；所述第一凸台可在所述第一限位槽的竖槽内沿所述刀杆的纵轴线方向滑动，所述第一凸台也可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动；所述挡块配置为可在所述第一限位槽的横槽内沿垂直于所述刀杆的纵轴线方向滑动但不能进入所述第一限位槽的竖槽内；所述挡块连接所述弹性元件，所述弹性元件能提供沿所述第一限位槽横槽方向的弹力，在该弹性元件的弹力作用下所述挡块在初始状态下位于第一限位槽横槽和竖槽结构的交点处。
  37. 根据权利要求32、33、35、36中任一项所述的套管组件可拆卸的超声手术器械，所述可拆卸套管组件包括内套管、外套管及位于远端的夹钳；所述外套管、所述内套管均与所述刀杆同轴设置；所述夹钳与所述外套管通过第一旋转轴可转动地连接，并与所述内套管通过第二旋转轴可转动地连接，使得沿轴向前后拉动所述内套管可带动夹钳围绕第一旋转轴旋转。
  38. 根据权利要求32或33任一项所述的套管组件可拆卸的超声手术器械，所述器械本体的壳体上设置固定座，所述T形限位槽设置在所述固定座上，所述固定座上安装拨轮和所述弹性元件，所述挡块设置在所述拨轮上，所述拨轮可带动所述挡块沿着第一限位槽的横槽方向克服所述弹性元件的弹力移动以使所述挡块打开第一限位槽所述横槽和所述竖槽的交叉口。
  39. 根据权利要求3036中任一项所述的套管组件可拆卸的超声手术器械，所述第一凸台可为外圆凸台或内圆凸台。
  40. 根据权利要求30所述的套管组件可拆卸的超声手术器械，所述器械本体的不可拆卸内套管和所述可拆卸内套管之间通过所述第二可拆卸结构实现驱动连接。
  41. 根据权利要求40所述的套管组件可拆卸的超声手术器械，所述第二可拆卸结构包括第二限位槽和第二凸台。
  42. 根据权利要求41所述的套管组件可拆卸的超声手术器械，在可拆卸套管组件与器械本体的安装或拆卸过程中所述第二可拆卸结构随着所述第一可拆卸结构的运动而运动；当所述第一可拆卸结构上的第一凸台刚要进入所述第一限位槽时，所述第二可拆卸结构的所述第二凸台也刚要进入所述第二限位槽；当所述第一可拆卸结构上的所述第一凸台进入T形限位槽的横槽与竖槽的交点处时，所述第二可拆卸结构的所述第二凸台也进入所述第二限位槽的横槽与竖槽的交点处；当所述第一可拆卸结构上的所述第一凸台完全从所述第一限位槽的横槽进入竖槽或从竖槽进入横槽时，所述第二可拆卸结构的所述第二凸台也完全从所述第二限位槽的横槽进入竖槽或从竖槽进入横槽。
  43. 根据权利要求41所述的套管组件可拆卸的超声手术器械，所述第二限位槽的横槽沿所述刀杆纵轴线方向，所述第二限位槽的竖槽与所述刀杆纵轴线方向垂直；所述第二凸台可在所述第二限位槽的横槽内沿所述刀杆纵轴线方向滑动及在所述第二限位槽的竖槽内沿垂直于所述刀杆纵轴线方向滑动。
  44. 根据权利要求41所述的套管组件可拆卸的超声手术器械，所述第二限位槽的竖槽沿所述刀杆纵轴线方向，所述第二限位槽的横槽与所述刀杆纵轴线方向垂直；所述第二凸台可在所述第二限位槽的竖槽内沿所述刀杆纵轴线方向滑动及在所述第二限位槽的横槽内沿垂直于所述刀杆纵轴线方向滑动。
  45. 根据权利要求43或44所述的套管组件可拆卸的超声手术器械，所述第二限位槽位于所述可拆卸套管组件上，所述第二凸台位于所述器械本体 上。
  46. 根据权利要求43或44所述的套管组件可拆卸的超声手术器械，所述第二限位槽位于所述器械本体上，所述第二凸台位于所述可拆卸套管组件上。
  47. 根据权利要求45所述的套管组件可拆卸的超声手术器械，所述第二限位槽位于所述可拆卸内套管上，所述第二凸台位于所述器械本体的不可拆卸内套管上。
  48. 根据权利要求2736、4044、47中任一项所述的套管组件可拆卸的超声手术器械，所述不可拆卸内套管与所述刀杆之间通过远端密封圈密封；所述不可拆卸内套管与所述可拆卸套管组件之间通过近端密封圈密封。
  49. 根据权利要求48所述的套管组件可拆卸的超声手术器械，所述远端密封圈为硅胶环。
  50. 根据权利要求48所述的套管组件可拆卸的超声手术器械，所述远端密封圈与所述刀杆在它们的密封连接处其中一个上设置有轴肩，另一个上设置有全周沟槽结构，所述轴肩与所述全周沟槽结构紧密配合。
  51. 根据权利要求48所述的套管组件可拆卸的超声手术器械，所述不可拆卸内套管的近端设置有内套管固定件，所述近端密封圈安装于内套管固定件的沟槽中，并介于内套管固定件与外套管固定件之间。
  52. 如权利要求4144、47、4951中任一项所述的套管组件可拆卸的超声手术器械，所述第二凸台可为外圆凸台或内圆凸台。
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