CN115177360A - Multifunctional endoscope minimally invasive scalpel - Google Patents
Multifunctional endoscope minimally invasive scalpel Download PDFInfo
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- CN115177360A CN115177360A CN202210926998.2A CN202210926998A CN115177360A CN 115177360 A CN115177360 A CN 115177360A CN 202210926998 A CN202210926998 A CN 202210926998A CN 115177360 A CN115177360 A CN 115177360A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00589—Coagulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1412—Blade
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- A—HUMAN NECESSITIES
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- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
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Abstract
The invention provides a multifunctional endoscope minimally invasive scalpel, which comprises: a handle assembly; the first adjusting device comprises an inner catheter, an electric knife assembly is arranged in the inner catheter, and the first adjusting device can adjust the electric knife assembly to move towards the far end or the near end relative to the handle assembly; the second adjusting device comprises a negative pressure conduit, the negative pressure conduit is arranged on the outer side of the inner conduit, the far end of the negative pressure conduit is communicated with the supporting part, a plurality of communicating holes are formed in the supporting part, the second adjusting device is used for adjusting the position state of the supporting part relative to the electric knife assembly, and the negative pressure conduit is connected with the negative pressure generating equipment; the sheath tube is arranged on the outer side of the negative pressure catheter, and the supporting part and the cutter head can extend out of the far end of the sheath tube. The multifunctional endoscope minimally invasive scalpel is provided with suction and injection functions, so that the hemostatic efficiency of hemorrhage in endoscopic surgery stripping is improved, the surgery efficiency is greatly improved, and the surgery time is reduced.
Description
Technical Field
The invention relates to the technical field of medical surgical instruments, in particular to a multifunctional endoscope minimally invasive scalpel.
Background
With the development of digestive endoscopy technology, the indications of endoscopic minimally invasive therapy are expanding, and ESD (endoscopic mucosal dissection), EMR (endoscopic mucosal resection) and polypectomy are also spreading gradually.
ESD is an important means in the treatment of digestive tract disorders, but it cannot obtain a good endoscopic view during the detachment process, and the knife used in endoscopic minimally invasive surgery currently on the market for digestive endoscopy does not have suction and irrigation (such as a hebo knife, a gold knife, etc.), and when performing incision and detachment by using the existing scalpel, since a plurality of blood vessels are distributed on the bottom layer of the mucosa, special care such as changing the output setting of a high-frequency power supply device for supplying high frequency power to the high-frequency scalpel at any time is required near these blood vessels, and the time for manual operation is long.
Bleeding, another major complication in ESD treatment, also has a major impact on the normal performance of ESD procedures. In case the open country of bleeding takes place in the art, the hemostasis process will consume a long time open country, can influence the scope field of vision moreover, need carry out the apparatus again and switch if carry out the hemostasis operation to need look for again and snatch the focus tissue of excision after stanching, not only prolonged operation time, increase the risk of complication, need a plurality of medical personnel to cooperate the processing simultaneously, operation efficiency is lower.
Disclosure of Invention
In view of this, the present invention is directed to a multifunctional endoscopic minimally invasive scalpel, which solves the problems of blurred vision and low operation efficiency when bleeding occurs during an endoscopic mucosal dissection operation in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a multifunctional endoscopic minimally invasive scalpel comprising:
a handle assembly;
the first adjusting device comprises an inner catheter, an electric knife assembly is arranged in the inner catheter, the first adjusting device can adjust the electric knife assembly to move towards the far end or the near end relative to the handle assembly, the electric knife assembly comprises a knife head and a connecting wire, the near end of the connecting wire is in transmission connection with the first adjusting device, and the far end of the connecting wire is connected with the knife head;
the second adjusting device comprises a negative pressure conduit, the negative pressure conduit is arranged on the outer side of the inner conduit, the far end of the negative pressure conduit is communicated with a supporting part, a plurality of communicating holes are formed in the supporting part, the second adjusting device is used for adjusting the position state of the supporting part relative to the electric knife assembly, and the negative pressure conduit is connected with a negative pressure generating device;
the sheath pipe is arranged on the outer side of the negative pressure catheter, and the supporting part and the cutter head can extend out of the far end of the sheath pipe.
Furthermore, the supporting part comprises an arc supporting wall, a bottom wall and a sealing plate, a cavity is formed among the arc supporting wall, the bottom wall and the sealing plate, the communication hole is formed in the arc supporting wall, adhesive tapes are arranged on two sides of the communication hole, a flexible connecting pipe is arranged on the bottom wall, and the flexible connecting pipe is communicated with a second containing cavity of the negative pressure conduit.
Further, the outer edge of diapire sets up the second border the outer edge of shrouding sets up first border, the adhesive tape sets up the second border with between the first border, the adhesive tape with the normal direction of arc support wall junction tangent plane is the contained angle setting.
Further, the diapire is close to set up the elastic deformation wall on handle assembly's the lateral wall, the elastic deformation wall is including the portion of sliding and elastic deformation portion, the length direction of the portion of sliding with the moving direction of electrotome subassembly is flat to set up, elastic deformation portion orientation is kept away from the direction predeformation of connecting wire, and distance the position predeformation volume that the portion of sliding is far away is big more, the one end of the portion of sliding with elastic deformation portion integrated into one piece, the other end passes through the titanium alloy connecting wire and is linked as an organic whole with second adjusting device.
Furthermore, the distal end of sheath pipe sets up auxiliary sleeve pipe, auxiliary sleeve pipe includes the sleeve pipe outer wall the distal end tip of sleeve pipe outer wall sets up the crimping boss of buckling towards connecting wire one side set up the direction pulley assembly between the inboard of sleeve pipe outer wall and the elastic deformation wall.
Further, the guide pulley assembly comprises at least two pulleys, namely a first pulley and a second pulley, and at least one of the first pulley and the second pulley is arranged between the elastic deformation part and the outer wall of the sleeve.
Furthermore, the handle assembly comprises a holding ring and an auxiliary catheter, a first connecting plate is arranged on the auxiliary catheter, an adjusting nut is arranged on one side, away from the holding ring, of the first connecting plate and is connected with the first connecting plate through a rotating bearing, the inner side of the adjusting nut is in threaded connection with the near end of the inner catheter, the electric knife assembly and the inner catheter are connected into a whole to move, and the electric knife assembly is adjusted to move towards the near end or the far end through rotating the adjusting nut.
Furthermore, the second adjusting device further comprises a flared tube, the flared tube is arranged at the near end of the negative pressure catheter, the far end of the flared tube is communicated with the negative pressure catheter, an exhaust tube is arranged on the side wall of the flared tube, the inner catheter penetrates through the near end of the flared tube and is inserted into the negative pressure catheter, a first sliding sealing element is arranged at the near end of the flared tube and is connected with the inserting part of the inner catheter in a sliding and sealing manner, the negative pressure catheter is inserted into the near end of the outer catheter, and a second sliding sealing element is arranged at the near end of the outer catheter and the inserting part of the negative pressure catheter.
Furthermore, a second closing-in part is arranged at the near end of the flared tube, a first gear adjusting part is arranged on the outer side of the second closing-in part, a second gear adjusting part is arranged on the outer side of the adjusting nut, and a clutch device is arranged between the first gear adjusting part and the second gear adjusting part and can switch the connection state of the first gear adjusting part and the second gear adjusting part.
Further, tool bit and connecting wire are electrically conductive material, the tool bit is connected with the electrode subassembly electricity through the connecting wire the inside of tool bit sets up first injection passageway the inside of connecting wire sets up second injection passageway, the distal end of second injection passageway with first injection passageway, the proximal end of connecting wire is worn out the ring of gripping through the injection connecting pipe, the injection connecting pipe links to each other with the syringe, the syringe can pass through injection connecting pipe, second injection passageway, first injection passageway are in when the mucous membrane is peeled off to the tool bit injection liquid.
Compared with the prior art, the multifunctional endoscope minimally invasive surgical knife has the following advantages:
(1) The multifunctional endoscope minimally invasive scalpel provided by the invention has the advantages that the structure of the scalpel is improved, the supporting part arranged at the far end can play a supporting role in the operation, and the negative pressure suction for cutting a lesion position can be realized, so that the problem that the electric coagulation hemostasis can be realized while direct vision is realized when the visual field is fuzzy due to the hemorrhage in the stripping operation is solved, the purpose of accurate hemostasis is achieved by suction hemostasis, and the complicated steps brought by washing and adjusting the scalpel by a gastroscope suction flushing device, the visual field angle and the like are also avoided.
(2) According to the multifunctional endoscope minimally invasive scalpel, the adhesive tape is arranged on the supporting surface of the supporting part, so that on one hand, the supporting part is tightly connected with a cutting part, the incision is guaranteed to be sucked and blocked to stop bleeding under the action of the negative pressure generating device, and meanwhile, part of intraoperative hemorrhage can also be led out through the negative pressure catheter through part of the communication holes, and the reliability that the visual field is blurred due to the intraoperative hemorrhage is prevented.
(3) According to the multifunctional endoscope minimally invasive scalpel, the connection state of the first adjusting device and the second adjusting device is switched through the arranged clutch device, when the first gear adjusting part and the second gear adjusting part are connected into a whole through the clutch device, the screwing-in and screwing-out of the electric knife assembly and the rotating movement of the supporting part can be simultaneously realized through rotating the adjusting nut, the supporting and suction hemostasis reliability of the supporting part is improved when the electric knife assembly cuts pathological tissues, the visual field of the cutting position is clear, the bleeding hemostasis efficiency in endoscope operation stripping is improved, and the operation time is reduced.
(4) According to the multifunctional endoscope minimally invasive scalpel, due to the clutch device and the switching device for realizing clutch switching, independent or simultaneous operation on the electric scalpel assembly and the supporting part can be completed as required through operation of a doctor during operation, so that the convenience of operation is greatly improved, the operation efficiency is improved, the structure is reasonable, and the operation is easy.
(5) The multifunctional endoscope minimally invasive scalpel provided by the invention is provided with suction and injection functions, so that the hemostatic efficiency of hemorrhage in endoscopic surgical stripping is improved, the surgical efficiency is greatly improved, and the surgical time is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic side view of a multifunctional endoscopic minimally invasive scalpel according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a multifunctional endoscopic minimally invasive scalpel according to an embodiment of the present invention;
FIG. 3 is a schematic sectional structural view of an operating end of the multifunctional endoscopic minimally invasive scalpel according to the embodiment of the present invention;
FIG. 4 is an enlarged view of part A of FIG. 3;
FIG. 5 is a structural diagram of a support portion of a multifunctional endoscopic minimally invasive scalpel according to an embodiment of the present invention in a first state;
FIG. 6 is a structural diagram of a support portion of the multifunctional endoscopic minimally invasive scalpel in a second state according to the embodiment of the present invention;
FIG. 7 is a structural diagram of a support portion of the multifunctional endoscopic minimally invasive scalpel in a third state according to the embodiment of the present invention;
FIG. 8 is a schematic structural view of a guide pulley assembly disposed between an elastically deformable wall and a front portion of an auxiliary sheath in the multifunctional endoscopic minimally invasive scalpel according to the exemplary embodiment of the present invention;
FIG. 9 is a schematic view of the assembly structure of the elastically deformable wall, the flexible connecting tube, and the support portion of the multifunctional endoscopic minimally invasive scalpel according to the embodiment of the present invention;
FIG. 10 is a schematic left side view of the structure of FIG. 9;
FIG. 11 is a schematic front view of the structure of FIG. 9;
FIG. 12 is a schematic sectional structural view of the operating end of the multifunctional endoscopic minimally invasive scalpel in embodiment 2 of the present invention;
FIG. 13 is a schematic cross-sectional view of the distal end of a multifunctional endoscopic minimally invasive scalpel in embodiment 2 of the present invention;
FIG. 14 is an enlarged partial view of the portion B of FIG. 13;
description of reference numerals:
the handle assembly 1, the grip ring 101, the auxiliary conduit 102, the first connecting plate 103, the first adjusting device 2, the inner conduit 201, the first closing-in portion 2011, the first cavity 202, the adjusting nut 203, the second gear adjusting portion 2031, the second adjusting device 3, the flared tube 301, the exhaust tube 302, the handle 303, the first ring sleeve 304, the first gear adjusting portion 305, the negative pressure conduit 306, the second cavity 307, the second limiting wall 308, the second closing-in portion 309, the arc transition portion 3010, the clutch device 4, the clutch sleeve 401, the first inner gear ring 4011, the first limiting wall 4012, the sliding groove 402, the second ring sleeve 403, the second inner gear ring 4031, the switching device 5, the second connecting plate 501, the third connecting plate 502, the lead screw 503, the outer sheath tube 6, the outer sheath tube wall 601, the transition arc 6011, the auxiliary sleeve 8, the sleeve connecting arm 801, the cutting device comprises a crimping boss 802, a supporting portion 9, a first supporting piece 901, a second supporting piece 902, an arc-shaped supporting wall 91, a first edge 92, a communication hole 93, an adhesive tape 94, a bottom wall 95, a sealing plate 96, a second edge 97, an electric knife assembly 10, a knife head 1001, a first injection channel 10011, a connecting wire 1002, a second injection channel 10021, an injection connecting pipe 1003, a first sliding sealing element 11, a second sliding sealing element 12, a first sliding gap 13, a third limiting wall 14, an elastic deformation wall 15, a first deformation wall 1501, a second deformation wall 1502, a sliding portion 151, an elastic deformation portion 152, a titanium alloy connecting wire 16, a first connecting wire 1601, a second connecting wire 1602, a flexible connecting pipe 17, a first connecting pipe 1701, a second connecting pipe 1702, a guide pulley assembly 1802, a first pulley 1801 and a second pulley.
Detailed Description
In order to make the technical means, objectives and functions of the present invention easy to understand, the following detailed description of the embodiments of the present invention with reference to the specific drawings.
It should be noted that all terms used in the present invention for directional and positional indication, such as: the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "lateral", "longitudinal", "center", and the like are used only for explaining the relative positional relationship, connection, and the like between the respective members in a certain state (as shown in the drawings), and are only for convenience of describing the present invention, but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Example 1
As shown in fig. 1 to 11, the invention discloses a multifunctional endoscope minimally invasive scalpel, which comprises:
a handle assembly 1;
the first adjusting device 2 comprises an inner catheter 201, an electric knife assembly 10 is arranged in the inner catheter 201, the first adjusting device 2 can adjust the electric knife assembly 10 to move towards the far end or the near end relative to the handle assembly 1, the electric knife assembly 10 comprises a knife head 1001 and a connecting wire 1002, the near end of the connecting wire 1002 is in transmission connection with the first adjusting device 2, and the far end of the connecting wire 1002 is connected with the knife head 1001;
the second adjusting device 3 comprises a negative pressure conduit 306, the negative pressure conduit 306 is arranged outside the inner conduit 201, the far end of the negative pressure conduit 306 is communicated with a supporting part 9, a plurality of communicating holes 93 are arranged on the supporting part 9, the second adjusting device 3 is used for adjusting the position state of the supporting part 9 relative to the electric knife assembly 10, and the negative pressure conduit 306 is connected with a negative pressure generating device;
sheath 6, sheath 6 sets up the outside of negative pressure pipe 306, supporting part 9 the tool bit 1001 homoenergetic stretches out sheath 6 distal end.
When the multifunctional endoscope minimally invasive scalpel is used, the scalpel is extended into lesion tissues through an instrument placing channel arranged in an endoscope tube sheath, after marking and local injection swelling of mucous membranes around the lesion tissues are completed, by holding a handle assembly 1 of the scalpel, when the scalpel reaches lesion tissues or polyps needing to be cut, a first adjusting device 2 is adjusted, an electric knife assembly 10 in an inner catheter 201 of the scalpel extends towards a far end of the handle assembly 1, the marked lesion tissues are cut through controlling a knife head 1001 under the action of an endoscope, when the knife head 1001 cuts off the lesion positions, a supporting part 9 is arranged on the circumference of the electric knife assembly 10, the supporting part 9 is supported at the position of the swelled lesion tissues under the action of a second adjusting device 3, a cavity is arranged in the supporting part 9, under the adjusting action of a second adjusting device 3, the cavity is in close contact with the edges of the supported lesion tissues through a communication hole 93 of the supporting part 9, and under the action of a negative pressure generating device, negative pressure suction around the cut lesion positions is achieved, the purpose of sucking while cutting is achieved, and the bleeding during surgery is greatly relieved, and the problem of surgery of low surgical field of bleeding is solved.
The application multi-functional scope minimal access surgery sword, through the structure to the scalpel improving, can play the supporting role through supporting part 9 that sets up at the distal end in the art, can realize cutting the vacuum aspiration of pathological change position again, when having solved and having peeled off the intraoperative hemorrhage and cause the field of vision fuzzy, can the limit electricity congeal hemostasis under can seeing the sight, the limit attracts the hemostasis and reaches an accurate hemostatic purpose, also avoids absorbing the loaded down with trivial details step that washing adjustment scalpel, field of vision angle etc. brought with gastroscope suction flushing device.
As a preferred embodiment of the present invention, the supporting portion 9 includes an arc-shaped supporting wall 91, a bottom wall 95 and a sealing plate 96, a cavity is formed between the arc-shaped supporting wall 91, the bottom wall 95 and the sealing plate 96, the communication hole 93 is disposed on the arc-shaped supporting wall 91, adhesive tapes 94 are disposed on two sides of the communication hole 93, a flexible connecting pipe 17 is disposed on the bottom wall 95, and the flexible connecting pipe 17 is communicated with the second cavity 307 of the negative pressure conduit 306.
The arrangement discloses a structure of a supporting part 9, an arc-shaped supporting wall 91 of the supporting part 9 is used for supporting a space between raised pathological tissues, the communication holes 93 are uniformly distributed on the outer side of the arc-shaped supporting wall 91, adhesive tapes 94 are arranged on two sides of the communication holes 93, and the adhesive tapes 94 can block part of the communication holes 93 in the adjusting process of the supporting part 9, so that the adhesive tapes 94 are tightly connected with a cutting part, suction and hemostasis are guaranteed under the action of a negative pressure generating device, and partial hemorrhage in surgery can also be led out through a negative pressure catheter 306 through part of the communication holes 93, and the reliability that the visual field is fuzzy due to the hemorrhage in surgery is prevented.
In a preferred embodiment of the present invention, a second edge 97 is provided at an outer edge of the bottom wall 95, a first edge 92 is provided at an outer edge of the sealing plate 96, the adhesive strip 94 is disposed between the second edge 97 and the first edge 92, and an angle is formed between the adhesive strip 94 and a normal direction of a tangent plane at a connection of the arc-shaped supporting wall 91. Preferably, the rubber strip 94 is arranged between the second edge 97 and the first edge 92 in an overall inclined included angle, and a normal included angle between the rubber strip 94 arranged in the middle of the arc-shaped supporting wall 91 and a tangent plane at the joint is smaller than a normal included angle between the rubber strip 94 arranged in the middle of the arc-shaped supporting wall 91 and the tangent plane at the joint.
This setting makes the supporting part 9 when removing or rotating under the effect of second adjusting device 3, and partial adhesive tape 94 can shutoff part intercommunicating pore 93 when supporting between the uplifted pathological change tissue that cuts open, and the support part 9 of also being convenient for simultaneously removes or extrudes the knife cut bleeding point when rotating when using, improves hemostatic effect.
As a preferred embodiment of the present invention, an elastic deformation wall 15 is disposed on a side wall of the bottom wall 95 close to the handle assembly 1, the elastic deformation wall 15 includes a sliding portion 151 and an elastic deformation portion 152, a length direction of the sliding portion 151 is disposed parallel to a moving direction of the electric knife assembly 10, the elastic deformation portion 152 is pre-deformed in a direction away from the connecting wire 1002, and the larger a pre-deformation amount of a position far from the sliding portion 151 is, one end of the sliding portion 151 is integrally formed with the elastic deformation portion 152, and the other end is integrally connected with the second adjusting device 3 through a titanium alloy connecting wire 16.
In use, when the supporting portion 9 moves towards the distal end under the action of the second adjusting device 3, the elastically deformable wall 15 gradually extends out of the distal end of the outer sheath 6, when the elastically deformable portion 152 is separated from the binding action of the distal end of the outer sheath 6, the elastically deformable portion 152 restores deformation in the direction away from the connecting wire 1002, the elastically deformable portion 152 is gradually opened, the knife head 1001 can be adjusted to the position to be cut under the adjusting action of the first adjusting device 2, the elastically deformable portion 152 is supported at the raised lesion tissue position under the action of the second adjusting device 3, when the supporting portion 9 needs to be retracted, the supporting portion 9 moves towards the proximal end of the outer sheath 6 under the adjusting action of the second adjusting device 3, and the elastically deformable portion 152 contracts under the binding action of the distal end of the outer sheath 6 until the elastically deformable portion 152 is completely contracted into the distal end of the outer sheath 6.
This setting is through the predeformation structure setting of elastic deformation wall 15, is adjusting the supporting part 9 relative during the position of electrotome subassembly 10, can open or close supporting part 9 simultaneously to realize supporting part 9 and support the reliable regulation of pathological change tissue position, also guaranteed the leakproofness of supporting part 9 with pathological change tissue contact department simultaneously, improved the reliability that supporting part 9 stanched, absorbed blood.
As a preferred embodiment of the present invention, an auxiliary sleeve 8 is disposed at the distal end of the outer sheath 6, the auxiliary sleeve 8 includes a sleeve outer wall 801, a crimping boss 802 bent toward the connecting wire 1002 is disposed at the distal end of the sleeve outer wall 801, and a guide pulley assembly 18 is disposed between the inner side of the sleeve outer wall 801 and the elastically deformable wall 15. As an example of the present invention, the auxiliary sleeve 8 may be a catheter structure sleeved outside the distal end of the outer sheath 6, or a catheter structure integrally connected to the distal end of the outer sheath 6, and the pressing boss 802 provided at the distal end of the sleeve outer wall 801 and the guide pulley assembly 18 between the guide pulley assemblies 18 provided between the sleeve outer wall 801 and the elastically deformable wall 15 make the elastically deformable wall 15 extend or slide into the second adjusting device 3 for smoothness and reliability in adjustment.
Preferably, the guide pulley assembly 18 includes at least two pulleys, a first pulley 1801 and a second pulley 1802, and at least one of the first pulley 1801 and the second pulley 1802 is disposed between the elastic deformation portion 152 and the sleeve outer wall 801. As an example of the present invention, the first pulley 1801 and the second pulley 1802 are disposed between the elastic deformation portion 152 and the sleeve outer wall 801, the second pulley 1802 is disposed between the first pulley 1801 and the press-contact boss 802, and a distance between a rotation axis of the second pulley 1802 and the connecting wire 1002 is larger than a distance between a rotation axis of the first pulley 1801 and the connecting wire 1002.
This arrangement further ensures the reliability and the smoothness of the movement of the pre-deformed elastic deformation portion 152 in the opening return deformation or the pressure contraction deformation.
As a preferred embodiment of the present invention, the flexible connecting tube 17 communicating between the bottom wall 95 and the distal end of the negative pressure conduit 306 is a medical corrugated tube, and the flexible connecting tube 17 can be deformed or stretched when the elastically deformable wall 15 is extended and opened.
As a preferred embodiment of the present invention, 2 to 5 supporting portions 9 are provided in the circumferential direction of the connecting wire 1002, one elastically deformable wall 15 and one flexible connecting tube 17 are provided outside the bottom wall 95 of each supporting portion 9, one titanium alloy connecting wire 16 is provided at one end of each elastically deformable wall 15 away from the supporting portion 9, and connecting lines of the plurality of elastically deformable walls 15 projected on a vertical plane of the advancing direction of the connecting wire 1002, connecting lines of the plurality of titanium alloy connecting wires 16 projected on a vertical plane of the advancing direction of the connecting wire 1002, and connecting lines of the plurality of flexible connecting tubes 17 projected on a vertical plane of the advancing direction of the connecting wire 1002 are concentrically arranged.
As an example of the present invention, two support portions 9 are provided, namely a first support 901 and a second support 902, wherein the arc-shaped support wall 91 of the first support 901 is provided in a semicircular shape; correspondingly, the elastically deformable wall 15 includes a first deformable wall 1501 and a second deformable wall 1502, the first deformable wall 1501 and the second deformable wall 1502 are symmetrically arranged along the central axis of the connecting wire 1002, the titanium alloy connecting wire 16 includes a first connecting wire 1601 and a second connecting wire 1602, the first connecting wire 1601 and the second connecting wire 1602 are symmetrically arranged along the central axis of the connecting wire 1002, the flexible connecting pipe 17 includes a first connecting pipe 1701 and a second connecting pipe 1702, and the first connecting pipe 1701 and the second connecting pipe 1702 are symmetrically arranged along the central axis of the connecting wire 1002. Preferably, the titanium alloy connecting wire 16 is connected to the distal end of the negative pressure conduit 306, and the distal end of the negative pressure conduit 306 can slide relative to the outer wall 801 of the sleeve.
The multifunctional endoscope minimally invasive scalpel further improves the reliability of cutting, blood sucking and hemostasis when in use, and can be applied to various operation environments to achieve the reliability of accurate hemostasis.
As a preferred embodiment of the present invention, the handle assembly 1 comprises a grip ring 101 and an auxiliary catheter 102, a first connecting plate 103 is disposed on the auxiliary catheter 102, an adjusting nut 203 is disposed on a side of the first connecting plate 103 away from the grip ring 101, the adjusting nut 203 is connected to the first connecting plate 103 through a rotating bearing, the inner side of the adjusting nut 203 is in threaded connection with the proximal end of the inner catheter 201, the electric knife assembly 10 is integrally connected to the inner catheter 201, and the electric knife assembly 10 is adjusted to move towards the proximal end or the distal end by rotating the adjusting nut 203.
The arrangement discloses a structure that the first adjusting device 2 adjusts the movement of the electric cutting knife component 10, the inner catheter 201 can continuously move towards the far end or the near end in a stepless manner through the forward and reverse rotation movement of the adjusting nut 203, and the inner catheter 201 can be inserted into the auxiliary catheter 102 when moving towards the near end. The device is reasonable in structure, can realize continuous adjustment, and is convenient and reliable to adjust.
In a preferred embodiment of the present invention, the second adjusting device 3 further includes a flared tube 301, the flared tube 301 is disposed at a proximal end of the negative pressure conduit 306, a distal end of the flared tube 301 is communicated with the negative pressure conduit 306, an air suction tube 302 is disposed on a sidewall of the flared tube 301, the inner conduit 201 is inserted into the negative pressure conduit 306 through the proximal end of the flared tube 301, a first sliding seal 11 is disposed at the proximal end of the flared tube 301 and an insertion portion of the inner conduit 201 for sliding and sealing connection, the negative pressure conduit 306 is inserted into a proximal end of the outer sheath 6, and a second sliding seal 12 is disposed at the proximal end of the outer sheath 6 and the insertion portion of the negative pressure conduit 306.
The arrangement discloses a structure that the inner conduit 201, the negative pressure conduit 306 and the outer sheath tube 6 are sequentially inserted and arranged, so that the reliability of the operation of the distal knife head 1001 and the supporting part 9 of the multifunctional endoscopic minimally invasive scalpel is ensured through the operation of the operation part.
As an example of the present invention, a liquid injection tube (not shown) may be further disposed on the side wall of the flared tube 301, the liquid injection tube is communicated with a liquid injection device, a cleaning liquid can be injected into the negative pressure conduit 306 through the liquid injection device and the liquid injection tube, and the cleaning liquid flows to the lesion cutting site through the flexible connecting tube 17 and the communication hole 93 on the supporting portion 9, so as to achieve rapid cleaning at the cutting edge.
As a preferred embodiment of the present invention, a first closing-in portion 2011 is disposed at a position where the inner catheter 201 is inserted into the flared tube 301, a second closing-in portion 309 is disposed at a proximal end of the flared tube 301, a second limiting wall 308 is disposed inside the second closing-in portion 309, the second limiting wall 308 is disposed along a radial direction of the second closing-in portion 309, and the first sliding seal 11 is disposed between the second limiting wall 308, the second closing-in portion 309, and the first closing-in portion 2011. Preferably, the first sliding seal 11 is an expanded resin gasket, which further improves the sealing property of the connection between the inner catheter 201 and the flared tube 301, and ensures the reliability of the suction hemostasis of the negative pressure catheter 306 under the action of the negative pressure generating device.
As a preferred example of the present invention, a first gear adjusting portion 305 is provided outside the second mouth portion 309, a second gear adjusting portion 2031 is provided outside the adjusting nut 203, a clutch device 4 is provided between the first gear adjusting portion 305 and the second gear adjusting portion 2031, and the clutch device 4 can switch the connection state between the first gear adjusting portion 305 and the second gear adjusting portion 2031.
This application realizes the switching of first adjusting device 2, the 3 connected state of second adjusting device through clutch 4 who sets up, will through clutch 4 first gear adjustment portion 305 with when second gear adjustment portion 2031 even is as an organic whole, through rotating adjusting nut 203, can realize simultaneously the precession of tool bit 1001 and the rotational motion of supporting part 9, improve tool bit 1001 when cutting pathological change tissue, the support of supporting part 9 and the reliability of attracting hemostasis guarantee that the cutting position field of vision is clear, improve the hemostatic efficiency of bleeding in the scope operation is peeled off, reduce the operation time.
As a preferred embodiment of the present invention, the clutch device 4 includes a clutch sleeve 401, a second ring sleeve 403 is disposed at a distal end of the clutch sleeve 401, a second ring gear 4031 is disposed on an inner wall of the second ring sleeve 403, the second ring gear 4031 is capable of meshing with the first gear adjustment portion 305, a first ring gear 4011 is disposed on an inner wall of a proximal end side of the clutch sleeve 401, the first ring gear 4011 is capable of meshing with the second gear adjustment portion 2031, and the clutch sleeve 401 changes a meshing state of the clutch sleeve 401 with the first gear adjustment portion 305 and the second gear adjustment portion 2031 under the action of the switching device 5.
Preferably, the switching device 5 includes a second connecting plate 501, the second connecting plate 501 is integrally connected to the first connecting plate 103, a lead screw 503 capable of being in threaded transmission with the second connecting plate 501 is disposed on the second connecting plate 501, a third connecting plate 502 is disposed at a distal end of the lead screw 503, the distal end of the lead screw 503 is rotatably connected to the third connecting plate 502, and one end of the third connecting plate 502 extends into the sliding groove 402 on the outer wall of the clutch sleeve 401. Preferably, the screw 503 can be driven by another driving nut or by a motor to perform a rotational movement, and by rotating the screw 503, the clutch sleeve 401 can be moved to the distal end or the proximal end, so as to switch the meshing state between the clutch sleeve 401 and the first gear adjustment portion 305 and the second gear adjustment portion 2031.
This setting discloses a switching device 5 of clutch device 4 and realization its separation and reunion switching, and is rational in infrastructure, and easily operation can be right as required through doctor's operation when the operation the electrotome subassembly 10 supporting part 9 carries out operation alone or simultaneously, has improved the convenience of operation greatly, improves operation efficiency.
In a preferred embodiment of the present invention, a distal end of the clutch sleeve 401 is provided with a first stopper wall 4012 bent inward, the first stopper wall 4012 is sleeved on an outer wall of the inner guide tube 201, a first sliding gap 13 is formed between a proximal end of the first stopper wall 4012 and a distal end of the adjusting nut 203, a third stopper wall 14 is provided in the first sliding gap 13, the third stopper wall 14 is provided on the outer wall of the inner guide tube 201, the third stopper wall 14 is capable of limiting a displacement of the first stopper wall 4012 moving proximally, a first collar 304 is provided at a proximal end of the flared tube 301, the first collar 304 is provided outside the first gear adjustment portion 305, and the first collar 304 is capable of limiting a displacement of the second collar 403 moving distally.
According to the invention, the third limit wall 14 is arranged on the inner guide tube 201, and the first ring sleeve 304 is arranged at the proximal end of the flared tube 301, so that the clutch sleeve 401 is limited to move towards the proximal end or the distal end, and the switching device 5 is ensured to realize the reliability of clutch switching of the clutch device 4.
As a preferred embodiment of the present invention, two handle handles 303 are provided on the sidewall of the flared tube 301, and the two handle handles 303 are symmetrically arranged on two opposite sides of the flared tube 301.
This arrangement facilitates the convenience of the second adjustment means 3 to adjust the movement or rotational movement of the support portion 9 alone.
As a preferred embodiment of the present invention, the outer sheath 6 includes an outer sheath wall 601, a proximal end of the outer sheath wall 601 is integrally connected to the handle assembly 1 through a connecting arm 7, a transition arc 6011 with a gradually decreasing cross-section is disposed at the proximal end of the outer sheath wall 601, an arc-shaped transition portion 3010 is disposed at a connection portion between the negative pressure conduit 306 and the outer sheath wall 601 near the proximal end, and the second sliding seal 12 is disposed between the arc-shaped transition portion 3010 and the arc-shaped transition portion 3010.
This arrangement ensures reliability of the sliding or rotational movement of the negative pressure catheter 306 relative to the outer sheath 6.
Preferably, a first cavity 202 is formed inside the inner catheter 201, the cutter head 1001 and the connecting wire 1002 of the electric knife assembly 10 according to the present invention are both made of a conductive material, and the connection and control of the electric knife assembly 10 and the electrode assembly are similar to those of the prior art, for example, the electrode assembly is electrically connected to the outer side of the connecting wire 1002 through a collecting ring, the connecting wire 1002 can move or rotate relative to the electrode assembly, and the specific structure is not described herein, and the connecting wire 1002 is disposed inside the first cavity 202; a second cavity 307 is formed inside the negative pressure conduit 306, a proximal end of the second cavity 307 is connected to the negative pressure generating device through the suction tube 302, and a distal end of the second cavity 307 is connected to the cavity inside the supporting portion 9 through the flexible connecting tube 17.
Example 2
As shown in fig. 1 to 13, the present invention discloses another multifunctional endoscopic minimally invasive scalpel, wherein the scalpel head 1001 and the connecting wire 1002 are both made of conductive materials, the scalpel head 1001 is electrically connected to an electrode assembly through the connecting wire 1002, a first injection channel 10011 is disposed inside the scalpel head 1001, a second injection channel 10021 is disposed inside the connecting wire 1002, a distal end of the second injection channel 10021 is connected to the first injection channel 10011, a proximal end of the connecting wire 1002 penetrates out of the grip ring 101 through an injection connecting tube 1003, the injection connecting tube 1003 is connected to a syringe, the syringe can inject liquid while the scalpel head 1001 peels off a mucous membrane through the injection connecting tube 1003, the second injection channel 10021 and the first injection channel 10011, and other structures are the same as those in embodiment 1. Preferably, the injector may be a high pressure water gun of a sea knife.
The utility model provides a multi-functional scope minimal access surgery sword sets up the passageway that is used for injecting liquid through the inside at electrotome subassembly 10, realizes that tool bit 1001 strips off the injection liquid when mucous membrane for can accomplish fast when excision pathological change tissue and supply the uplift operation, avoid changing the apparatus repeatedly and effectively shorten the operation time. The tool bit 1001 is an O-shaped tool bit, a T-shaped tool bit or a conical tool bit.
The multifunctional endoscope minimally invasive scalpel is provided with suction and injection functions, so that the hemostasis efficiency of hemorrhage in endoscopic surgery stripping is improved, a better intraoperative visual field is obtained, the surgery efficiency is greatly improved, and the surgery time is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A multifunctional endoscope minimally invasive scalpel is characterized by comprising:
a handle assembly (1);
the first adjusting device (2) comprises an inner catheter (201), an electric knife assembly (10) is arranged inside the inner catheter (201), the first adjusting device (2) can adjust the electric knife assembly (10) to move towards the far end or the near end relative to the handle assembly (1), the electric knife assembly (10) comprises a knife head (1001) and a connecting wire (1002), the near end of the connecting wire (1002) is in transmission connection with the first adjusting device (2), and the far end of the connecting wire (1002) is connected with the knife head (1001);
the second adjusting device (3) comprises a negative pressure conduit (306), the negative pressure conduit (306) is arranged on the outer side of the inner conduit (201), the far end of the negative pressure conduit (306) is communicated with a supporting part (9), a plurality of communicating holes (93) are formed in the supporting part (9), the second adjusting device (3) is used for adjusting the position state of the supporting part (9) relative to the electric cutter assembly (10), and the negative pressure conduit (306) is connected with a negative pressure generating device;
sheath pipe (6), sheath pipe (6) set up the outside of negative pressure pipe (306), supporting part (9) tool bit (1001) homoenergetic stretches out sheath pipe (6) distal end.
2. The multifunctional endoscopic minimally invasive scalpel according to claim 1, wherein the support portion (9) comprises an arc-shaped support wall (91), a bottom wall (95) and a sealing plate (96), a cavity is formed among the arc-shaped support wall (91), the bottom wall (95) and the sealing plate (96), the communication hole (93) is formed in the arc-shaped support wall (91), adhesive tapes (94) are arranged on two sides of the communication hole (93), a flexible connecting pipe (17) is arranged on the bottom wall (95), and the flexible connecting pipe (17) is communicated with the second cavity (307) of the negative pressure conduit (306).
3. The multifunctional endoscopic minimally invasive scalpel according to claim 2, wherein a second edge (97) is disposed at an outer edge of the bottom wall (95), a first edge (92) is disposed at an outer edge of the sealing plate (96), the adhesive tape (94) is disposed between the second edge (97) and the first edge (92), and the adhesive tape (94) is disposed at an included angle with respect to a normal direction of a tangent plane at a junction of the arc-shaped supporting wall (91).
4. The multifunctional endoscope minimally invasive scalpel according to claim 2 or 3, wherein the bottom wall (95) is provided with an elastic deformation wall (15) on the side wall close to the handle assembly (1), the elastic deformation wall (15) comprises a sliding portion (151) and an elastic deformation portion (152), the length direction of the sliding portion (151) and the moving direction of the electric knife assembly (10) are arranged in a parallel manner, the elastic deformation portion (152) is pre-deformed towards the direction far away from the connecting wire (1002), the pre-deformation amount of the position far away from the sliding portion (151) is larger, one end of the sliding portion (151) is integrally formed with the elastic deformation portion (152), and the other end of the sliding portion is integrally connected with the second adjusting device (3) through a titanium alloy connecting wire (16).
5. The multifunctional endoscopic minimally invasive scalpel according to claim 4, wherein an auxiliary sleeve (8) is arranged at the distal end of the outer sheath tube (6), the auxiliary sleeve (8) comprises a sleeve outer wall (801), a crimping boss (802) bent towards one side of the connecting wire (1002) is arranged at the distal end of the sleeve outer wall (801), and a guide pulley assembly (18) is arranged between the sleeve outer wall (801) and the elastically deformable wall (15).
6. The multifunctional endoscopic minimally invasive scalpel according to claim 5, wherein the guide pulley assembly (18) comprises at least two pulleys, a first pulley (1801) and a second pulley (1802), wherein at least one of the first pulley (1801) and the second pulley (1802) is disposed between the elastically deformable portion (152) and the cannula outer wall (801).
7. The multifunctional endoscopic minimally invasive scalpel according to claim 6, wherein the handle assembly (1) comprises a holding ring (101) and an auxiliary catheter (102), a first connecting plate (103) is arranged on the auxiliary catheter (102), an adjusting nut (203) is arranged on one side, away from the holding ring (101), of the first connecting plate (103), the adjusting nut (203) is connected with the first connecting plate (103) through a rotating bearing, the inner side of the adjusting nut (203) is in threaded connection with the proximal end of the inner catheter (201), the electrotome assembly (10) and the inner catheter (201) are connected into a whole to move, and the adjustment of the electrotome assembly (10) to move towards the proximal end or the distal end is carried out by rotating the adjusting nut (203).
8. The multifunctional endoscopic minimally invasive scalpel according to claim 7, wherein the second adjusting device (3) further comprises a flared tube (301), the flared tube (301) is disposed at a proximal end of the negative pressure catheter (306), a distal end of the flared tube (301) is communicated with the negative pressure catheter (306), an air suction tube (302) is disposed on a side wall of the flared tube (301), the inner catheter (201) is inserted into the negative pressure catheter (306) through the proximal end of the flared tube (301), a first sliding seal (11) is disposed at the proximal end of the flared tube (301) and an insertion portion of the inner catheter (201) for sliding and sealing connection, the negative pressure catheter (306) is inserted into the proximal end of the outer sheath (6), and a second sliding seal (12) is disposed at the proximal end of the outer sheath (6) and the insertion portion of the negative pressure catheter (306).
9. The multifunctional endoscopic minimally invasive scalpel according to claim 8, wherein a second closing-in portion (309) is disposed at a proximal end of the flared tube (301), a first gear adjusting portion (305) is disposed outside the second closing-in portion (309), a second gear adjusting portion (2031) is disposed outside the adjusting nut (203), and a clutch device (4) is disposed between the first gear adjusting portion (305) and the second gear adjusting portion (2031), wherein the clutch device (4) can switch a connection state of the first gear adjusting portion (305) and the second gear adjusting portion (2031).
10. The multifunctional endoscope minimally invasive scalpel according to claim 1 or 9, wherein the scalpel head (1001) and the connecting wire (1002) are both made of conductive materials, the scalpel head (1001) is electrically connected with the electrode assembly through the connecting wire (1002), a first injection channel (10011) is arranged inside the scalpel head (1001), a second injection channel (10021) is arranged inside the connecting wire (1002), the distal end of the second injection channel (10021) and the first injection channel (10011) penetrate through the grip ring (101) through an injection connecting pipe (1003), the injection connecting pipe (1003) is connected with an injector, and the injector can inject liquid while peeling off a mucous membrane through the scalpel head (1001) through the injection connecting pipe (1003), the second injection channel (10021) and the first injection channel (10011).
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| CN202210926998.2A CN115177360B (en) | 2022-08-03 | 2022-08-03 | Multifunctional endoscope minimally invasive scalpel |
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| CN202210926998.2A CN115177360B (en) | 2022-08-03 | 2022-08-03 | Multifunctional endoscope minimally invasive scalpel |
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| CN115177360B (en) | 2024-07-16 |
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