CN218739048U - Endoscopic surgical instrument, and proximal end transport device and distal end operation device used for same - Google Patents

Abstract

An endoscopic surgical instrument, a proximal delivery device, and a distal manipulator device are disclosed. The distal end operation device of the endoscopic surgical instrument includes a drive wire, a drive wire sleeve, and an operation member connected to the distal ends of both. The near ends of the driving wire and the driving wire sleeve are respectively provided with a driving wire end connecting part and a driving wire sleeve end connecting part. The proximal delivery device of the endoscopic surgical instrument includes a control wire, a control wire sleeve and a handle connected at the proximal ends of the control wire sleeve and the control wire sleeve. The far ends of the control wire and the control wire sleeve are respectively provided with a control wire end connecting part and a control wire sleeve end connecting part. The drive wire sleeve and the control wire sleeve are detachably connected through the end connecting part of the drive wire sleeve and the end connecting part of the control wire sleeve. The drive line and the control line are detachably connected by a drive line terminating portion and a control line terminating portion. According to the embodiment, the far-end operation device and the near-end conveying device are separately designed, so that the repeated loading of the far-end operation device is realized, the near-end conveying device can be repeatedly used, and the material waste is reduced.

Description

Endoscopic surgical instrument, and proximal end transport device and distal end operation device used for same

Technical Field

The embodiments of the present invention relate to the technical field of medical instruments, and more particularly to an endoscopic surgical instrument, a proximal end delivery device for an endoscopic surgical instrument, and a distal end operation device for an endoscopic surgical instrument.

Background

A tissue clamping device is a minimally invasive surgical instrument, and is often used to stop bleeding of a wound in a patient, such as a wound in the digestive tract. The tissue clamping device belongs to physical hemostasis, and the tissue around the wound and the bleeding blood vessel are clamped and fixed through the closing force between the clamping pieces, so that the effect of hemostasis is achieved. The closing force between the clamping pieces causes the clamped tissue to block blood supply, so that the mucosa tissue is necrotic and falls off.

At present, most tissue clamping devices are disposable. After the package is unpacked and taken out, the tissue clamping device is used for operations of hemostasis suture and the like of the wound surface. After use, the tissue fastening device is discarded. After most hemostatic clamps clamp tissue (wound), the clamping member is separated from the delivery device. The clamping part can be retained in the human body due to clamping the wound surface, and then the conveying device is moved out of the body. Because the distal end of the delivery device is in contact with the body, the delivery device is discarded after being removed from the body. Discarded delivery devices, if mishandled, are prone to environmental contamination or secondary infection to other patients. In addition, the disposed conveying device also causes material waste, which is not conducive to sustainable development.

Accordingly, there is a need for an improved endoscopic surgical instrument that addresses the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to at least alleviate or solve the above problems by providing an endoscopic surgical instrument and a proximal end delivery device and a distal end manipulation device therefor.

According to a first aspect of the present invention, there is provided an endoscopic surgical instrument, comprising: a proximal delivery device and a distal manipulation device. The far-end operation device comprises a driving wire, a driving wire sleeve sleeved outside the driving wire and an operation part connected to the far ends of the driving wire and the driving wire sleeve, wherein a driving wire end connection part is arranged at the near end of the driving wire, and a driving wire sleeve end connection part is arranged at the near end of the driving wire sleeve. The near-end conveying device comprises a control line, a control line sleeve and a handle, wherein the control line sleeve is arranged outside the control line, the handle is connected with the near ends of the control line and the control line sleeve, a control line end connecting part is arranged at the far end of the control line, and a control line sleeve end connecting part is arranged at the far end of the control line sleeve. The drive wire sleeve and the control wire sleeve are configured to be detachably connected by the drive wire sleeve end connection and the control wire sleeve end connection to form a delivery tube, and the drive wire and the control wire are configured to be detachably connected by the drive wire end connection and the control wire end connection, so that the handle can control the movement of the control wire and the drive wire relative to the delivery tube, thereby controlling the operation of the operating member.

In one or more embodiments, when the driving wire termination portion and the driving wire bushing termination portion are connected to the control wire termination portion and the control wire bushing termination portion, respectively, the connection position of the driving wire termination portion and the control wire termination portion is located within the control wire bushing.

In one or more embodiments, the handle can control movement of the control wire relative to the control wire sleeve such that the control wire termination can move between a retracted position within the control wire sleeve and an extended position extending out of the control wire sleeve.

In one or more embodiments, the distal manipulating device is configured such that the drive wire termination portion remains protruding from the proximal end of the drive wire sleeve.

In one or more embodiments, when the drive line termination is removably connected to the control line termination, the drive line termination and the control line termination do not move relative to each other in the axial and circumferential directions of the control line.

In one or more embodiments, the inner diameter of the conveying tube is set such that the drive line termination and the pilot line termination, which are connected to each other, cannot be separated in both the radial and axial directions within the conveying tube.

In one or more embodiments, the drive wire termination and the control wire termination include axial stops that can cooperate with each other to limit axial relative movement between the drive wire termination and the control wire termination.

In one or more embodiments, the axial limiting portion of the driving wire terminal portion is provided with a first boss and a first groove in the same radial direction, and the axial limiting portion of the control wire terminal portion is provided with a second groove and a second boss in the same radial direction, for respectively cooperating with the first boss and the first groove of the driving wire terminal portion in the radial direction to form a detachable connection.

In one or more embodiments, the axial stopper portion of the drive wire terminal portion has a first fitting surface facing in the radial direction, the axial stopper portion of the control wire terminal portion has a second fitting surface facing in the radial direction, one of the first fitting surface and the second fitting surface has a recess formed thereon, and the other has a projection formed thereon, and the first fitting surface and the second fitting surface are fitted together in the radial direction so that the projection is fitted in the recess to form the detachable connection.

In one or more embodiments, the drive wire sleeve spigot and the control wire sleeve spigot are threadedly connected to each other.

In one or more embodiments, one of the drive wire bushing terminal connection portion and the control wire bushing terminal connection portion is a deformed terminal connection portion including an elastically deformed portion, and the other is a pressed terminal connection portion including a pressed portion, the deformed terminal connection portion and the pressed terminal connection portion being detachably connected by elastic deformation of the elastically deformed portion by the pressed portion.

In one or more embodiments, the deformed termination portion and the pressed termination portion are brought into and out of detachable connection by elastic deformation of the elastic deformation portion in a radial direction.

In one or more embodiments, the resilient deformation is at least one resilient tab disposed circumferentially about the deformed termination, the resilient tab being biased radially inwardly or outwardly, the compression termination being formed with a tab receptacle. When the deformed termination portion and the compression termination portion are pressed against each other in the axial direction, the elastic tab is first elastically deformed radially outward or inward under the compression of the compression portion, and then enters the tab receiving portion and at least partially restores the elastic deformation, so that a connection is formed between the deformed termination portion and the compression termination portion. When the deformed termination portion and the pressed termination portion are axially away from each other, the elastic tab is first elastically deformed radially outward or inward by the pressing of the pressed portion and then disengaged from the tab receiving portion, thereby disengaging the connection between the deformed termination portion and the pressed termination portion.

In one or more embodiments, the tab receiving portion is at least one circumferentially arranged surface recess or cut-out of the compression termination.

In one or more embodiments, the pressing part is formed at a tip end of the pressing terminating part and has a circular ring shape.

In one or more embodiments, the elastic tab has a first abutment surface and a second abutment surface for abutting the pressing portion in different axial directions, respectively, to guide elastic deformation of the elastic tab in a radial direction when abutting the pressing portion.

In one or more embodiments, the resilient tab is formed as a cantilever arm projecting in an axial direction.

In one or more embodiments, the deformed termination portion and the pressing termination portion are detachably connected by elastic deformation of the elastic deformation portion in a circumferential direction.

In one or more embodiments, the pressing portion is at least one convex portion arranged along a circumferential direction of the pressing end portion and protruding in a radial direction. The deformation terminating portion has a cylindrical body formed with a guide groove open to a tip end of the deformation terminating portion and a limit opening communicating with the guide groove, and slits extending in an axial direction are formed on both sides of the guide groove, so that the elastic deformation portion is formed between the guide groove and the slits, and the elastic deformation portion is elastically deformable in a circumferential direction to enlarge the guide groove, thereby allowing the pressing portion to enter the limit opening along the guide groove and to exit the deformation terminating portion from the limit opening along the guide groove.

In one or more embodiments, one of the drive wire bushing termination and the control wire bushing termination is a plug termination and the other is a socket termination, the plug termination including an outer protrusion circumferentially disposed and protruding radially outward, the socket termination including an inner protrusion circumferentially disposed and protruding radially inward, a notch alternating with the inner protrusion circumferentially, and an inner flange axially spaced from the inner protrusion and the notch. The male protrusion is arranged to be able to enter the socket-spigot end portion via the notched portion, and the female protrusion is arranged to restrain the male protrusion between the female protrusion and the inner flange in an axial direction when the male protrusion is rotated by a preset angle in a circumferential direction with respect to the female protrusion.

In one or more embodiments, the socket interface further comprises a resilient element and a support portion disposed between the inner protrusion and the inner flange, the resilient element being disposed between the support portion and the inner flange for applying an axially outward thrust via the support portion to the outer protrusion entering the socket interface.

In one or more embodiments, the operating member forms a detachable connection with the distal ends of both the drive wire and the drive wire sleeve.

In one or more embodiments, the operative member is a tissue gripping member.

According to a second aspect of the present invention, there is provided a proximal end delivery device for an endoscopic surgical instrument, comprising: control line, cover are established outside control line sleeve pipe of control line and connection the control line with the handle of the control line sleeve pipe the two near-end, wherein, the distal end of control line is provided with control line terminating portion, the sheathed tube distal end of control line is provided with control line sleeve pipe terminating portion, control line terminating portion with control line sleeve pipe terminating portion configure into with by the near-end formation of the distal end operating means that near-end conveyor carried can dismantle the connection.

In one or more embodiments, the handle can control movement of the control wire relative to the control wire sleeve such that the control wire termination can move between a retracted position within the control wire sleeve and an extended position extending out of the control wire sleeve.

According to a third aspect of the present invention, there is provided a distal end operation device for an endoscopic surgical instrument, comprising: the driving wire, the cover are established outside the driving wire sleeve pipe of driving wire and connection the driving wire with the operating means of the distal end of the driving wire sleeve pipe two, wherein, the near end of driving wire is provided with driving wire termination portion, the near end of driving wire sleeve pipe is provided with driving wire sleeve pipe termination portion, driving wire termination portion with driving wire sleeve pipe termination portion configures into and is used for carrying far end formation detachable connection of far end conveyor of far end operating means.

In one or more embodiments, the distal manipulating device is configured such that the drive wire termination portion remains protruding from the proximal end of the drive wire sleeve.

According to a fourth aspect of the present invention, there is provided a proximal end delivery device for an endoscopic surgical instrument as described above.

According to a fifth aspect of the present invention, there is provided a distal end effector for an endoscopic surgical instrument as described above.

With the aid of the above technical scheme of the utility model, can realize following beneficial technological effect at least:

according to the utility model discloses can reload release's hemostatic clamp through carrying out separable design with distal end operating means and near-end conveyor, has solved the problem that distal end operating means can't reload among the prior art, and near-end conveyor can repeat the repetitious usage simultaneously, has reduced the waste of material.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a structural representation of an endoscopic surgical instrument according to an embodiment of the present invention;

FIG. 2 is a structural illustration of an endoscopic surgical instrument according to an embodiment of the present invention;

FIG. 3 is a structural view of a detachable connection between a drive line termination and a control line termination according to an embodiment of the present invention;

fig. 4 is a perspective view of a drive wire, drive wire termination, control wire termination and control wire according to an embodiment of the present invention;

fig. 5 is a cross-sectional structural view of the drive wire, drive wire termination, control wire termination and control wire in the axial direction according to an embodiment of the present invention;

fig. 6 is a perspective view of a drive wire, drive wire termination, control wire termination and control wire according to an embodiment of the present invention;

fig. 7 is a perspective view of a drive wire, drive wire termination, control wire termination and control wire according to an embodiment of the present invention;

fig. 8 is a structural view of a duct according to an embodiment of the present invention;

fig. 9 is a perspective view of a deformed termination and an extruded termination of a drive wire ferrule termination and a control wire ferrule termination according to an embodiment of the present invention;

fig. 10 is a cross-sectional structural view in the axial direction of the deformed and pressed end portions of the drive wire sleeve end portion and the control wire sleeve end portion according to the embodiment of the present invention;

fig. 11 is a perspective view of a drive wire sleeve, a drive wire sleeve termination, a control wire sleeve termination, and a control wire sleeve according to an embodiment of the present invention;

fig. 12 is a perspective view of a drive wire sleeve, a drive wire sleeve termination, a control wire sleeve termination, and a control wire sleeve according to an embodiment of the present invention;

fig. 13 is a perspective view of a deformed and extruded termination of a drive wire ferrule termination and a control wire ferrule termination according to an embodiment of the present invention;

fig. 14 is a perspective view of a drive wire bushing spigot and a control wire bushing spigot according to an embodiment of the invention;

fig. 15 is a perspective view of a drive line sleeve, a drive line sleeve termination, a control line sleeve termination and a control line sleeve according to an embodiment of the present invention;

fig. 16 is a perspective view of a drive line sleeve, a drive line sleeve termination, a control line sleeve termination and a control line sleeve according to an embodiment of the present invention;

fig. 17 is a perspective view of a socket termination according to an embodiment of the present invention;

fig. 18 is a perspective view of a socket termination according to an embodiment of the present invention;

FIG. 19 is a schematic view of a known endoscopic surgical instrument entering the environment of the human body; and is provided with

FIG. 20 is a schematic view of an endoscopic surgical instrument according to an embodiment of the present invention entering the environment of a human body

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

In the description of the embodiments of the present invention, the terms "upper", "lower", "inner", "outer", "center", "longitudinal", "lateral", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, components or elements to a particular orientation or to be constructed and operated in a particular orientation.

In the description of the embodiments of the present invention, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but may be slightly inclined. For example, "horizontal" merely means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Unless specifically stated or limited otherwise, in the description of the embodiments of the present invention, the terms "disposed," "mounted," "connected," and the like are to be construed broadly. For example, "connected" may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In an embodiment of the present invention, the proximal end refers to the end of the endoscopic surgical instrument close to the operator, and the distal end refers to the end opposite the proximal end, e.g. the end close to the object to be operated, such as tissue, located inside the body. Further, the axial direction refers to a direction in which a longitudinal axis of a control wire of an endoscopic surgical instrument extends, the radial direction refers to a direction perpendicular to the axial direction, and the circumferential direction refers to a circumferential direction along the circumferential direction around the axial direction. Unless otherwise indicated, the distal end of the member refers to the end of the member near the inside of the body, and the proximal end refers to the end of the member near the outside of the body.

The following describes embodiments of the present invention in detail with reference to the accompanying drawings. The various embodiments described below and the various features of the embodiments may be combined with each other without conflict.

Fig. 1 and 2 are structural views of an endoscopic surgical instrument 1 according to an embodiment of the present invention. Fig. 1 differs from fig. 2 in that fig. 1 shows a removable connection between the drive line termination 215 of the drive line 210 and the control line termination 115 of the control line 110, while fig. 2 shows a removable connection between the drive line sleeve termination 225 of the drive line sleeve 220 and the control line sleeve termination 125 of the control line sleeve 120.

An endoscopic surgical instrument 1 according to an embodiment of the present invention will be described with reference to fig. 1 and 2. The endoscopic surgical instrument 1 generally includes a proximal delivery device 10 and a distal manipulator 20.

The distal operating device 20 includes a driving wire 210, a driving wire sleeve 220 sleeved outside the driving wire 210, and an operating member 230 connected to the distal ends of the driving wire 210 and the driving wire sleeve 220, wherein a proximal end of the driving wire 210 is provided with a driving wire end connection portion 215, and a proximal end of the driving wire sleeve 220 is provided with a driving wire sleeve end connection portion 225.

The proximal delivery device 10 includes a control wire 110, a control wire sleeve 120 disposed around the control wire 110, and a handle 130 connected to the proximal ends of both the control wire 110 and the control wire sleeve 120, wherein the distal end of the control wire 110 is provided with a control wire termination 115, and the distal end of the control wire sleeve 120 is provided with a control wire sleeve termination 125.

The drive wire 210 and the control wire 110 are configured to be removably coupled via the drive wire termination 215 and the control wire termination 115 such that the handle 130 can control the movement of the control wire 110 and the drive wire 210 relative to the delivery tube 30 (see fig. 8) and thereby control the operation of the operating member 230.

In an exemplary embodiment, the connection location of the drive wire termination 215 to the control wire termination 115 may be located within the control wire sleeve 120 when the drive wire termination 215 and the drive wire sleeve termination 225 are connected to the control wire termination 115 and the control wire sleeve termination 125, respectively.

In an exemplary embodiment, the handle 130 can control movement of the control wire 110 relative to the control wire sleeve 120 such that the control wire termination 115 can move between a retracted position within the control wire sleeve 120 and an extended position extending out of the control wire sleeve 120.

In an exemplary embodiment, the distal end effector 20 may be configured such that the drive wire termination 215 remains protruding from the proximal end of the drive wire cannula 220.

In an exemplary embodiment, when the drive wire termination 215 forms a detachable connection with the trainline termination 115, the drive wire termination 215 and the trainline termination 115 do not move relative to each other in the axial and circumferential directions of the trainline 110.

In an exemplary embodiment, the inner diameter of the transmission tube 30 may be set such that the driving wire termination 215 and the control wire termination 115, which are connected to each other, cannot be separated in both the radial and axial directions within the transmission tube 30.

Fig. 3 is a structural diagram of a detachable connection between the drive line termination 215 and the control line termination 115 according to an embodiment of the present invention.

The detachable connection between the drive wire termination portion 215 and the control wire termination portion 115 is described in connection with fig. 3. In an exemplary embodiment, the drive wire termination 215 and the control wire termination 115 may include an axial stop portion 40 that can cooperate with each other to limit axial relative movement between the drive wire termination 215 and the control wire termination 115.

Fig. 4 is a perspective view of the drive line 210, drive line termination 215, control line termination 115, and umbilical cord 110 according to an embodiment of the invention, and fig. 5 is a cross-sectional structural view along the axial direction of the drive line 210, drive line termination 215, umbilical cord termination 115, and umbilical cord 110 according to an embodiment of the invention.

A case of detachable connection between the drive line terminating part 215 and the control line terminating part 115 according to an embodiment of the present invention is described with reference to fig. 4 and 5. In this exemplary embodiment, the axial restraining portions 40 of the drive line termination 215 and the control line termination 115 employ mating bosses and grooves.

In an exemplary embodiment, the axial stopper portion 40 of the driving wire terminal portion 215 may be provided with a first boss 410 and a first groove 411 in the same radial direction, and the axial stopper portion 40 of the control wire terminal portion 115 may be provided with a second groove 421 and a second boss 420 in the same radial direction for respectively cooperating with the first boss 410 and the first groove 411 of the driving wire terminal portion 215 in the radial direction to form a detachable connection.

Fig. 6 and 7 are perspective structural views of the drive wire 210, the drive wire termination 215, the control wire termination 115, and the control wire 110 according to an embodiment of the present invention. Fig. 6 differs from fig. 7 in that the view of fig. 7 is rotated 90 degrees in the circumferential direction relative to the view of fig. 6.

Another case of the detachable connection between the drive wire terminal portion 215 and the control wire terminal portion 115 will be described with reference to fig. 6 and 7, in which the axial direction restricting portion 40 employs a surface provided with a projection and a surface provided with a recess that are fitted to each other.

A cross-sectional structural view along the axial direction of the drive wire 210, the drive wire termination 215, the control wire termination 115, and the control wire 110. In an exemplary embodiment, the axial stopper 40 of the drive wire termination 215 may have a first mating surface 413 facing in the radial direction, the axial stopper 40 of the control wire termination 115 may have a second mating surface 423 facing in the radial direction, one of the first mating surface 413 and the second mating surface 423 may have a recess 40R formed thereon, the other may have a protrusion 40P formed thereon, and the first mating surface 413 and the second mating surface 423 may be fitted together in the radial direction such that the protrusion 40P is fitted in the recess 40R to form the detachable connection.

Fig. 8 is a structural view of a duct according to an embodiment of the present invention.

The detachable connection between the drive wire sleeve termination 225 and the control wire sleeve termination 125 of the delivery tube 30 is described in connection with FIG. 8. The drive wire sleeve 220 and the control wire sleeve 120 are configured to be removably connected by a drive wire sleeve interface 225 and a control wire sleeve interface 125 to form the delivery tube 30.

Fig. 9 is a perspective structural view of the deformed termination portion 51 and the pressed termination portion 52 of the drive wire bushing termination portion 225 and the control wire bushing termination portion 125 according to an embodiment of the present invention, and fig. 10 is a sectional structural view along the axial direction of the deformed termination portion 51 and the pressed termination portion 52 of the drive wire bushing termination portion 225 and the control wire bushing termination portion 125 according to an embodiment of the present invention.

A first case of the deformed termination portion 51 and the pressed termination portion 52 is described with reference to fig. 9 and 10.

In an exemplary embodiment, one of the driving wire bushing terminal part 225 and the control wire bushing terminal part 125 may be a deformation terminal part 51 including an elastic deformation part 510, and the other may be a pressing terminal part 52 including a pressing part 520, and the deformation terminal part 51 and the pressing terminal part 52 may be detachably connected by elastic deformation of the elastic deformation part 510 by the pressing part 520.

In an exemplary embodiment, the deformed termination portion 51 and the press termination portion 52 may be detachably connected by being elastically deformed in a radial direction by the elastic deformation portion 510.

In an exemplary embodiment, the elastic deformation portion 510 may be at least one elastic tab 511 arranged along a circumferential direction of the deformation terminating portion 51, the elastic tab 511 may be biased radially inward or outward, and the pressing terminating portion 52 may be formed with a tab receiving portion 521. When the deformed termination 51 and the compression termination 52 are pressed against each other in the axial direction, the elastic tab 511 may first be elastically deformed radially outward or inward by the compression of the compression 520, and then enter the tab receiving portion 521 and at least partially restore the elastic deformation, so that the connection between the deformed termination 51 and the compression termination 52 is formed. When the deformed termination portion 51 and the pressing termination portion 52 are axially away from each other, the elastic tab 511 may be first elastically deformed radially outward or inward by the pressing of the pressing portion 520 and then disengaged from the tab receiving portion 521, thereby disengaging the connection between the deformed termination portion 51 and the pressing termination portion 52.

In an exemplary embodiment, the tab receiving portion 521 may be at least one circumferentially arranged surface recess or cutout of the compression termination 52.

In an exemplary embodiment, the pressing part 520 may be formed at the end of the pressing termination part 52 and may have a circular ring shape.

In an exemplary embodiment, the elastic tab 511 may have a first abutment surface 511F and a second abutment surface 511B for abutting with the pressing part 520 in different directions in the axial direction, respectively, to guide the elastic tab 511 to be elastically deformed in the radial direction when abutting with the pressing part 520.

In an exemplary embodiment, the elastic tab 511 may be formed as a cantilever protruding in the axial direction.

In an exemplary embodiment, the deformed termination portion 51 may be detachably connected to and disconnected from the press termination portion 52 by elastic deformation of the elastic deformation portion 510 in the circumferential direction.

Fig. 11 and 12 are perspective views of a drive wire sleeve 220, a drive wire sleeve termination 225, a control wire sleeve termination 125, and a control wire sleeve 120 according to embodiments of the invention. Fig. 11 differs from fig. 12 in that the view of fig. 12 is rotated 90 degrees in the circumferential direction relative to the view of fig. 11.

The mating between the drive wire ferrule interface 225 and the control wire ferrule interface 125 and the mating between the drive wire 210 and the control wire 110 are described in connection with fig. 11 and 12.

In fig. 11 and 12, the drive wire bushing end portion 225 is taken as the deformation end portion 51, and the control wire bushing end portion 125 is taken as the pressing end portion 52. However, in other exemplary embodiments, the drive wire sleeve spigot 225 can be the compression spigot 52 and the control wire sleeve spigot 125 can be the deformation spigot 51.

Fig. 13 is a perspective view of the deformed termination 51 and the pressed termination 52 of the drive wire ferrule termination 225 and the control wire ferrule termination 125 according to an embodiment of the present invention.

A second case of the deformed termination portion 51 and the pressed termination portion 52 is described with reference to fig. 13.

In an exemplary embodiment, the pressing portion 520 may be at least one protrusion 52X arranged along a circumferential direction of the pressing termination portion 52 and protruding in a radial direction. The deformed terminating portion 51 may have a cylindrical body 51B, a guide groove 51G opened to a tip end of the deformed terminating portion 51 and a stopper opening 51H communicating with the guide groove 51G may be formed on the cylindrical body 51B, and slits 51S extending in the axial direction may be formed on both sides of the guide groove 51G, thereby forming an elastically deformed portion 510 between the guide groove 51G and the slits 51S. The elastically deforming part 510 is elastically deformable in the circumferential direction to enlarge the guide groove 51G, thereby allowing the pressing part 520 to enter the limit opening 51H along the guide groove 51G and to exit the deforming terminal part 51 from the limit opening 51H along the guide groove 51G.

A detachable connection between the drive wire sleeve end 225 and the control wire sleeve end 125 according to an embodiment of the present invention is described above with reference to fig. 9 to 13. In the exemplary embodiment described above, the connection between the drive wire sleeve spigot 225 and the control wire sleeve spigot 125 is made by the deformation spigot 51 and the compression spigot 52.

Fig. 14 is a perspective view of the drive wire ferrule end connection 225 and the control wire ferrule end connection 125 according to an embodiment of the invention.

Another detachable connection between the drive wire sleeve spigot 225 and the control wire sleeve spigot 125 is described in connection with fig. 14. In the present exemplary embodiment, the connection between the drive wire sleeve spigot 225 and the control wire sleeve spigot 125 is made by a threaded connection.

In an exemplary embodiment, the drive wire sleeve spigot 225 and the control wire sleeve spigot 125 can be threadably connected to each other.

Fig. 15 and 16 are perspective views of a drive wire sleeve 220, a drive wire sleeve termination 225, a control wire sleeve termination 125, and a control wire sleeve 120 according to embodiments of the invention. Fig. 15 differs from fig. 16 in that fig. 15 is a diagram viewed from the proximal end side of the endoscopic surgical instrument 1, and fig. 16 is a diagram viewed from the distal end side of the endoscopic surgical instrument 1.

Fig. 17 and 18 are perspective views of a socket interface 62 according to an embodiment of the invention. Fig. 17 (a), (B) show the inner projection 62A, the cutaway portion 62B, and the inner flange 62C of the socket-end interface 62, and are views viewed from the distal end side and the proximal end side of the endoscopic surgical instrument 1, respectively. Fig. 17 (C) also shows the support portion 62E of the socket end 62. Fig. 18 (a), (B), (C) show the elastic element 62D and the support portion 62E of the socket port 62, wherein (a) is an exploded view of the elastic element 62D and the support portion 62E, and (B) and (C) are assembled state views of the elastic element 62D and the support portion 62E and views viewed from the distal end side and the proximal end side of the endoscopic surgical instrument 1, respectively.

Yet another detachable connection between the drive wire sleeve termination 225 and the control wire sleeve termination 125 is described in connection with fig. 15, 16, 17 and 18. In the present exemplary embodiment, a connection is made between the drive wire ferrule connection 225 and the control wire ferrule connection 125 by the plug connection 61 and the socket connection 62.

One case of the plug-terminating portion 61 and the socket-terminating portion 62 is described with reference to fig. 15, 16, 17, and 18.

In an exemplary embodiment, one of the drive wire ferrule termination 225 and the control wire ferrule termination 125 may be the plug termination 61 and the other may be the socket termination 62. As shown in fig. 15 and 16, the plug terminating portion 61 may include an outward protrusion 61X arranged in the circumferential direction and protruding radially outward. The socket-end joint 62 may include inner protrusions 62A arranged in the circumferential direction and protruding radially inward, notch portions 62B arranged alternately with the inner protrusions 62A in the circumferential direction, and inner flanges 62C provided at intervals from the inner protrusions 62A and the notch portions 62B in the axial direction, see (a) of fig. 17. The male projection 61X may be arranged to be able to enter the socket end 62 via the notch 62B. When the outer protrusion 61X is rotated by a preset angle in the circumferential direction with respect to the inner protrusion 62A, the inner protrusion 62A may be configured to axially restrain the outer protrusion 61X between the inner protrusion 62A and the inner flange 62C.

In an exemplary embodiment, the socket interface 62 may further include a support 62E and a resilient element 62D disposed between the inner protrusion 62A and the inner flange 62C, and the resilient element 62D may be disposed between the support 62E and the inner flange 62C for applying an axially outward thrust to the outer protrusion 61X entering the socket interface 62 via the support 62E.

In an exemplary embodiment, the operating member 230 may form a detachable connection with the distal ends of both the drive wire 210 and the drive wire sleeve 220. The operating member 230 may be a tissue gripping member, such as a hemostatic clip.

The use and operation of the endoscopic surgical device 1 according to an embodiment of the present invention will be described taking as an example the operation member 230 as a tissue grasping member such as a hemostatic clip. As described above, the endoscopic surgical instrument 1 includes the distal end operation device 20 and the proximal end delivery device 10, and the distal end operation device 20 includes the drive wire 210, the drive wire sheath 220, and the operation member 230 (i.e., the hemostatic clip). The proximal delivery device 10 includes a control wire 110, a control wire sleeve 120, and a handle 130. Further, the operating member 230 (i.e., the hemostatic clip) may include a clip, a clip holder, and a pin.

The distal end effector 20 and the proximal end delivery device 10 are individually packaged before the endoscopic surgical instrument 1 is removed from the package. The distal manipulator 20 and proximal delivery device 10 are removed from the bag, respectively. The handle 130 in the proximal delivery device 10 is pushed distally to expose the control wire 110 in the proximal delivery device 10 distally out of the control wire sleeve 120. The distal end of the control wire 110 is then matingly engaged with the proximal end of the drive wire 210 and the handle 130 is pulled proximally to bring the distal end of the control wire sleeve 120 into close proximity with the proximal end of the drive wire sleeve 220 (i.e., to bring the control wire sleeve interface 125 into close proximity with the drive wire sleeve interface 225) and to matingly engage, thereby completing the coupling of the distal manipulator 20 to the proximal delivery device 10 and completing the assembly of the endoscopic surgical device 1.

According to the general operation method of the hemostatic clamp, the clamp is opened and closed by controlling the movement of the handle 130. When the clip is moved to the target position, the clip is opened to the maximum, and then the object to be clipped is aligned, the clip is closed, and the handle 130 is pulled further toward the proximal end, so that the operating member 230 is separated from the driving wire sleeve 220, thereby completing the whole hemostatic action.

After the hemostasis is completed, the hemostatic clamp is removed from the endoscope, the proximal end of the drive wire sleeve 220 is detached from the distal end of the proximal delivery device 10, and then the proximal end of the drive wire 210 is detached from the distal end of the control wire 110, thereby detaching the distal manipulator 20 (now without the manipulation member 230) and the proximal delivery device 10. The distal manipulator 20 may then be discarded as waste and the proximal delivery device 10 may be reused with another new distal manipulator 20.

In the endoscopic surgical instrument 1 described in connection with the above embodiments, the connection of the distal end operation device 20 to the proximal end delivery device 10 includes the connection between the distal end of the outer control wire sleeve 120 and the drive wire sleeve 220, and the connection between the inner control wire 110 and the drive wire 210. Both connections are separable connections and may be subject to multiple separations and connections. The operative member 230, such as a tissue gripping portion, includes a clip and a holder having at least two openable and closable portions. The holder is mainly used for accommodating the clamp and realizing the opening and closing of the clamp. After release, the tissue gripping portion will be retained within the body. The drive wire sleeve 220 is used to connect an operating member 230 such as a tissue gripping portion and the proximal delivery device 10, the drive wire sleeve 220 and the tissue gripping portion constitute a distal operating device 20, and the distal operating device 20 is disposable and detachably connected to the proximal delivery device 10. The distal end of the drive wire 210 is connected to the proximal end of the clip and the proximal end of the drive wire 210 is connected to the distal end of the control wire 110, all of which are separable connections.

The proximal delivery device 10 may be reused multiple times. The delivery tube 30 is divided into a proximal end and a distal end, a control wire cannula hub 125 at the proximal end of the delivery tube 30 is connected to the handle 130 by a control wire cannula 120, and a drive wire cannula hub 225 at the distal end of the delivery tube 30 is detachably connected to the drive wire cannula 220. The control wire 110 is used for connecting the drive wire 210 and controlling the opening and closing of the clamp through the drive wire 210. The control wire 110 has a torque transmitting function to achieve 360 degree rotational positioning of the clamp. The handle 130 is used to connect the control wire 110 and apply a force to the control wire 110 to effect opening and closing of the clip.

According to an embodiment of the present invention, the distal end effector 20 and the proximal end delivery device 10 are detachably connected. The distal manipulating device 20 is disposable and the proximal delivery device 10 is reusable. In addition, the far-end operating device 20 and the near-end conveying device 10 are simple and reliable in connection and convenient to detach.

The embodiment of the present invention further provides a proximal end conveying device 10 for an endoscopic surgical instrument 1, including: a control wire 110, a control wire sleeve 120 disposed about the exterior of the control wire 110, and a handle 130 coupled to the proximal ends of both the control wire 110 and the control wire sleeve 120. The distal end of the control wire 110 is provided with a control wire termination 115, the distal end of the control wire sleeve 120 is provided with a control wire sleeve termination 125, and the control wire termination 115 and control wire sleeve termination 125 are configured to form a detachable connection with the proximal end of the distal manipulator 20 delivered by the proximal delivery device 10.

In an exemplary embodiment, the handle 130 can control movement of the control wire 110 relative to the control wire sleeve 120 such that the control wire termination 115 can move between a retracted position within the control wire sleeve 120 and an extended position extending out of the control wire sleeve 120.

The embodiment of the present invention also provides a distal end operation device 20 for an endoscopic surgical instrument 1, including: the driving wire comprises a driving wire 210, a driving wire sleeve 220 sleeved outside the driving wire 210, and an operating part 230 connected to the distal ends of the driving wire 210 and the driving wire sleeve 220. The proximal end of the drive wire 210 is provided with a drive wire termination 215, the proximal end of the drive wire sleeve 220 is provided with a drive wire sleeve termination 225, the drive wire termination 215 and the drive wire sleeve termination 225 are configured to form a detachable connection with the distal end of the proximal delivery device 10 for delivering the distal end effector 20.

In an exemplary embodiment, the distal end effector 20 may be configured such that the drive wire termination 215 remains protruding from the proximal end of the drive wire sleeve 220.

The present embodiment also provides a proximal end delivery device 10 for the endoscopic surgical instrument 1 described in the various exemplary embodiments above.

The present embodiment also provides a distal end operation device 20 for the endoscopic surgical instrument 1 described in the above exemplary embodiments.

Fig. 19 is a schematic view of a known endoscopic surgical device 1' entering a human body environment, and fig. 20 is a schematic view of an endoscopic surgical device 1 entering a human body environment according to an embodiment of the present invention.

As shown in FIG. 19, the endoscopic surgical instrument 1' includes a distal manipulator 20' and a proximal delivery device 10'. In use, the distal end of the endoscopic surgical instrument 1 'is passed through the endoscopic clamp channel 1N' into the environment of the human body. The region 1F ' of the endoscopic surgical instrument 1' actually protruding out of the endoscope comprises, for example, the operating parts of the distal end effector 20' and part of the drive wire sleeve, in particular the distal end portion of the drive wire sleeve. After the tissue fastening device is used for hemostatic suturing of a wound surface, the tissue fastening device is discarded. The tissue gripping members are separated from the proximal delivery device 10'. The tissue gripping member will remain in the body due to the wound surface being gripped, and the proximal delivery device 10' is then removed from the body. Because the proximal delivery device 10' and the distal operation device 20' are fixedly connected to each other, and the distal end of the distal operation device 20' is in contact with the human body. Thus, the distal manipulator 20 '(now excluding the tissue gripping members) and the proximal delivery device 10' are disposed of after they have been removed from the body. The discarded distal handling device 20 'and proximal delivery device 10' may be prone to environmental contamination or secondary infection to other patients if mishandled. In addition, the disposed proximal delivery device 10' also results in wasted material and is not conducive to sustainable development.

As shown in fig. 20 and described in connection with the above embodiments of fig. 1 to 18, the endoscopic surgical instrument 1 includes a distal end operation device 20 and a proximal end delivery device 10. According to an embodiment of the present invention, the distal end effector 20 and the proximal end delivery device 10 are detachably connected. During use, the distal end of the endoscopic surgical instrument 1 enters the body environment through the endoscopic clamp channel 1N. The region 1F of the endoscopic surgical instrument 1 actually protruding out of the endoscope includes, for example, the operating member 230 of the distal end operating device 20 and a part of the drive wire sleeve 220, particularly a distal end portion of the drive wire sleeve 220 (see fig. 2).

As described above, according to the endoscopic surgical instrument 1 of the embodiment of the present invention, the distal end operation device 20 and the proximal end delivery device 10 are detachably connected. The tissue gripping members and the distal end (body contacting portion) of the proximal delivery device 10 are provided as a separate module (which may be referred to as a release unit, for example) that is separate and detachably connected to the proximal end (body non-contacting portion) of the proximal delivery device 10 and is reloadable. That is, the proximal end of one proximal delivery device 10 may be sequentially coupled to engage a plurality of release units. When the tissue gripping members in the release unit are released, the original proximal end of the proximal delivery device 10 can still be used to reload another release unit and complete the release. Therefore, the near end of the near end conveying device 10 can be repeatedly utilized for multiple times, and because the near end of the near end conveying device 10 cannot be directly contacted with a human body in actual use, a pollution source cannot be carried, and the human body and the environment cannot be injured by repeated use for multiple times. Meanwhile, the material cost is saved, and the economic pressure of the patient is relieved.

The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features disclosed herein, and that other combinations of features disclosed herein or their equivalents, in any combination, are also encompassed by the invention without departing from the spirit of the invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (29)

1. An endoscopic surgical instrument, comprising: a proximal delivery device and a distal manipulator, wherein,

the far-end operation device comprises a driving wire, a driving wire sleeve sleeved outside the driving wire and an operation part connected to the far ends of the driving wire and the driving wire sleeve, wherein the near end of the driving wire is provided with a driving wire end connection part, and the near end of the driving wire sleeve is provided with a driving wire sleeve end connection part;

the near-end conveying device comprises a control line, a control line sleeve sleeved outside the control line and a handle connected to the near ends of the control line and the control line sleeve, wherein the far end of the control line is provided with a control line end connection part, and the far end of the control line sleeve is provided with a control line sleeve end connection part; and is

The drive wire sleeve and the control wire sleeve are configured to be detachably connected by the drive wire sleeve termination and the control wire sleeve termination to form a delivery tube, and the drive wire and the control wire are configured to be detachably connected by the drive wire termination and the control wire termination, such that the handle is capable of controlling movement of the control wire and the drive wire relative to the delivery tube to control operation of the operating member.

2. An endoscopic surgical instrument according to claim 1, wherein when said driving wire terminal portion and said driving wire ferrule terminal portion are connected to said control wire terminal portion and said control wire ferrule terminal portion, respectively, a connection position of said driving wire terminal portion and said control wire terminal portion is located within said control wire ferrule.

3. An endoscopic surgical instrument according to claim 2, wherein said handle is configured to control movement of said control wire relative to said control wire sleeve such that said control wire termination is movable between a retracted position within said control wire sleeve and an extended position extending out of said control wire sleeve.

4. The endoscopic surgical instrument of claim 3, wherein the distal end effector is configured such that the drive wire termination portion remains protruding from the proximal end of the drive wire sleeve.

5. An endoscopic surgical instrument according to claim 4, wherein when said drive wire terminal portion and said control wire terminal portion are brought into detachable connection, said drive wire terminal portion and said control wire terminal portion do not move relative to each other in the axial direction and the circumferential direction of the control wire.

6. An endoscopic surgical instrument according to claim 1, wherein an inner diameter of the delivery tube is set so that the driving wire terminal portion and the control wire terminal portion connected to each other cannot be separated in both a radial direction and an axial direction within the delivery tube.

7. An endoscopic surgical instrument according to claim 1 or 6, wherein said drive wire termination portion and said control wire termination portion include axial limiting portions capable of cooperating with each other to limit axial relative movement between said drive wire termination portion and said control wire termination portion.

8. An endoscopic surgical instrument according to claim 7, wherein the axial restraining portion of the drive wire termination portion is provided with a first boss and a first groove in the same radial direction, and the axial restraining portion of the control wire termination portion is provided with a second groove and a second boss in the same radial direction for respectively cooperating with the first boss and the first groove of the drive wire termination portion in the radial direction to form a detachable connection.

9. An endoscopic surgical instrument according to claim 7, wherein the axial stopper portion of the drive wire terminal portion has a first fitting surface facing in a radial direction, the axial stopper portion of the control wire terminal portion has a second fitting surface facing in a radial direction, one of the first fitting surface and the second fitting surface has a recess formed thereon, and the other has a projection formed thereon, and the first fitting surface and the second fitting surface are fitted together in a radial direction so that the projection is fitted in the recess to form a detachable connection.

10. The endoscopic surgical instrument of claim 1 wherein the drive wire sleeve termination and the control wire sleeve termination are threadably connected to each other.

11. An endoscopic surgical instrument according to claim 1, wherein one of said drive wire sheath end connection portion and said control wire sheath end connection portion is a deformed end connection portion including an elastically deformed portion, and the other is a pressed end connection portion including a pressed portion, said deformed end connection portion and said pressed end connection portion being brought into and out of detachable connection by elastic deformation of said elastically deformed portion under the action of said pressed portion.

12. An endoscopic surgical instrument according to claim 11, wherein said deformed termination portion and said compression termination portion are brought into and out of detachable connection by elastic deformation of said elastic deformation portion in a radial direction.

13. The endoscopic surgical instrument of claim 12, wherein the resilient deformation portion is at least one resilient tab disposed along a circumference of the deformation tip portion, the resilient tab being biased radially inward or outward, the compression tip portion being formed with a tab receiving portion, wherein,

when the deformed termination part and the pressing termination part are pressed against each other along the axial direction, the elastic connecting piece is firstly elastically deformed outwards or inwards along the radial direction under the pressing of the pressing part and then enters the connecting piece accommodating part and at least partially restores the elastic deformation, so that the connection is formed between the deformed termination part and the pressing termination part; and is provided with

When the deformed termination portion and the pressing termination portion are axially away from each other, the elastic tab is first elastically deformed radially outward or inward by the pressing of the pressing portion and then disengaged from the tab receiving portion, thereby disengaging the connection between the deformed termination portion and the pressing termination portion.

14. An endoscopic surgical instrument according to claim 13, wherein the tab receiving portion is at least one circumferentially disposed surface recess or cutout of the compression tip.

15. An endoscopic surgical instrument according to claim 14, wherein the pressing portion is formed at a tip end of the pressing tip portion and has a circular ring shape.

16. An endoscopic surgical instrument according to claim 13, wherein said elastic tab has a first abutment surface and a second abutment surface for abutment with said pressing portion in different axial directions, respectively, to guide elastic deformation of said elastic tab in a radial direction upon abutment with said pressing portion.

17. An endoscopic surgical instrument according to claim 16, wherein said resilient tab is formed as an axially projecting cantilever.

18. An endoscopic surgical instrument according to claim 11, wherein the deformed termination portion and the pressing termination portion are brought into and out of detachable connection by elastic deformation of the elastic deformation portion in a circumferential direction.

19. An endoscopic surgical instrument according to claim 18, wherein said pressing portion is at least one convex portion arranged along a circumferential direction of said pressing end portion and protruding in a radial direction, and wherein

The deformation terminating portion has a cylindrical body formed with a guide groove opened to a tip end of the deformation terminating portion and a limit opening communicating with the guide groove, and slits extending in an axial direction are formed at both sides of the guide groove, so that the elastic deformation portion is formed between the guide groove and the slits, and the elastic deformation portion can be elastically deformed in a circumferential direction to enlarge the guide groove, thereby allowing the pressing portion to enter the limit opening along the guide groove and to exit the deformation terminating portion from the limit opening along the guide groove.

20. An endoscopic surgical instrument according to claim 1, wherein one of the drive wire sleeve termination and the control wire sleeve termination is a plug termination and the other is a socket termination, the plug termination including a circumferentially arranged and radially outwardly projecting outer protrusion, the socket termination including a circumferentially arranged and radially inwardly projecting inner protrusion, a notch alternating with the inner protrusion in a circumferential direction, and an inner flange axially spaced from the inner protrusion and the notch, and wherein

The male protrusion is arranged to be able to enter the socket-spigot end portion via the notched portion, and the female protrusion is arranged to restrain the male protrusion between the female protrusion and the inner flange in an axial direction when the male protrusion is rotated by a preset angle in a circumferential direction with respect to the female protrusion.

21. The endoscopic surgical instrument of claim 20 wherein the socket interface further comprises a resilient element and a support disposed between the inner ledge and the inner flange, the resilient element disposed between the support and the inner flange for applying an axially outward thrust via the support to the outer ledge entering the socket interface.

22. The endoscopic surgical instrument of claim 1, wherein the operating member forms a detachable connection with the distal ends of both the drive wire and the drive wire sleeve.

23. The endoscopic surgical instrument of claim 22, wherein the operative component is a tissue gripping component.

24. A proximal end delivery device for an endoscopic surgical instrument, comprising: a control wire, a control wire sleeve sleeved outside the control wire and a handle connected with the proximal ends of the control wire and the control wire sleeve, wherein,

the far end of the control wire is provided with a control wire end connection part, the far end of the control wire sleeve is provided with a control wire sleeve end connection part, and the control wire end connection part and the control wire sleeve end connection part are configured to be detachably connected with the near end of the far end operation device conveyed by the near end conveying device.

25. The proximal delivery device for an endoscopic surgical instrument as defined in claim 24, wherein the handle is configured to control movement of the control wire relative to the control wire sleeve such that the control wire termination is movable between a retracted position within the control wire sleeve and an extended position extending out of the control wire sleeve.

26. A distal end effector for an endoscopic surgical instrument, comprising: a driving wire, a driving wire sleeve sleeved outside the driving wire and an operation part connected with the distal ends of the driving wire and the driving wire sleeve, wherein,

the proximal end of the driving wire is provided with a driving wire end connection part, the proximal end of the driving wire sleeve is provided with a driving wire sleeve end connection part, and the driving wire end connection part and the driving wire sleeve end connection part are configured to be detachably connected with the distal end of a proximal end conveying device used for conveying the distal end operation device.

27. The distal end effector for an endoscopic surgical instrument according to claim 26, wherein the distal end effector is configured such that the drive wire termination portion remains protruding from the proximal end of the drive wire sleeve.

28. A proximal delivery device for an endoscopic surgical instrument according to any one of claims 1 to 23.

29. A distal end manipulation device for use with an endoscopic surgical instrument according to any one of claims 1 to 23.

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