CN108392298B - Controllable inverted Y-shaped airway support conveying device - Google Patents
Controllable inverted Y-shaped airway support conveying device Download PDFInfo
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- CN108392298B CN108392298B CN201810449546.3A CN201810449546A CN108392298B CN 108392298 B CN108392298 B CN 108392298B CN 201810449546 A CN201810449546 A CN 201810449546A CN 108392298 B CN108392298 B CN 108392298B
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- stent
- telescopic
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- 230000007246 mechanism Effects 0.000 claims abstract description 79
- 238000013519 translation Methods 0.000 claims abstract description 17
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- 239000007924 injection Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 108010025899 gelatin film Proteins 0.000 claims description 7
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- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010013952 Dysphonia Diseases 0.000 description 1
- 208000000461 Esophageal Neoplasms Diseases 0.000 description 1
- 208000000616 Hemoptysis Diseases 0.000 description 1
- 208000010473 Hoarseness Diseases 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
Abstract
The invention relates to the technical field of medical equipment, in particular to a novel controllable inverted Y-shaped airway stent conveying device; the telescopic device comprises an outer pipe sleeve, an inner pipe sleeve arranged in the outer pipe sleeve, a Y-shaped support pipe connected with the inner pipe sleeve, a telescopic mechanism for enabling the inner pipe sleeve to perform telescopic movement and a sleeve translation mechanism for enabling the telescopic mechanism to perform movement; the tail end of the outer pipe sleeve is provided with an openable and closable opening and closing flap, and the Y-shaped bracket pipe is positioned in the outer pipe sleeve; in the invention, the sleeve translation mechanism drives the telescopic mechanism to move, so that the inner sleeve stretches in the outer sleeve, the Y-shaped support tube can be pushed forward to push the opening and closing valve, and the opening and closing valve is conveyed into the air passage, so that the air passage is protected from being easily operated; the invention has convenient operation and strong practicability.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a controllable inverted Y-shaped airway stent conveying device.
Background
Central lung cancer, esophageal cancer and other tumor mediastinal lymph node metastasis, which is easy to infringe or press the airway to cause airway stenosis, and the interventional therapy adopting airway stent implantation has the advantages of small trauma, less complications, good effect and the like, and becomes the main method for treating the central airway stenosis at present.
The implantation of the airway stent needs to use a stent conveying system, in the prior art, a hollow inner tube and an outer tube which are sleeved with each other are generally adopted, the hollow part of the inner tube is convenient for passing through a guide wire during operation, and the airway stent is arranged between the inner tube and the outer tube; during operation, the guide wire guides the catheter component of the conveying system to reach the preset position, the control component makes the outer tube withdrawn, and the airway stent is gradually released and expanded to be attached to the inner wall of the airway in the process.
The inverted Y-shaped airway stent is placed in advance, two guide wires are easy to wind in the stent conveying process, the stent placement time is prolonged by a light person, and the stent placement failure and suffocation death of a patient are caused when the stent placement time is severe.
The airway stent has certain resistance in the conveying process, particularly, the inverted Y-shaped airway stent has larger conveying resistance because the front end of the conveyor does not have an enlarged olive head, is inconvenient to operate, and can often cause glottis and airway mucous membrane injury by strong pushing, thereby causing hoarseness, sore throat and even hemoptysis, and increasing the pain of patients.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide the controllable inverted Y-shaped airway stent conveying device, which utilizes the sleeve translation mechanism to drive the telescopic mechanism to move, so that the inner sleeve stretches in the outer sleeve, the Y-shaped stent tube can be pushed forwards to push the opening and closing valve, the opening and closing valve is conveyed into the airway, the opening and closing valve can protect the airway from being damaged, and the pushing strength is not excessively high.
The technical scheme for solving the technical problems is as follows:
the controllable inverted Y-shaped airway stent conveying device comprises an outer tube sleeve, an inner tube sleeve arranged in the outer tube sleeve, a Y-shaped stent tube connected with the inner tube sleeve, a telescopic mechanism for enabling the inner tube sleeve to perform telescopic movement and a sleeve translation mechanism for enabling the telescopic mechanism to perform movement; the tail end of the outer pipe sleeve is provided with an openable and closable opening and closing flap, and the Y-shaped support pipe is positioned in the outer pipe sleeve.
As an improvement of the invention, a rotary pushing mechanism for moving the sleeve translation mechanism is also included.
As a further improvement of the invention, a branch sleeve is sleeved in the inner tube sleeve, and the branch sleeve is communicated with the Y-shaped bracket tube.
As a further improvement of the invention, a bracket clamping mechanism for clamping the inner pipe sleeve is arranged in the inner pipe sleeve, the bracket clamping mechanism comprises a bracket fastening sleeve and an elastic fastening clamp which is connected with the inner wall of the bracket fastening sleeve and used for clamping the inner pipe sleeve, and the front end of the bracket fastening sleeve is provided with a bracket fixing end head which is sleeved on the inner pipe sleeve.
As a further improvement of the invention, the outer pipe sleeve is connected with an inflation mechanism, the inflation mechanism comprises an air duct connected to the outer wall of the outer pipe sleeve, an inflation balloon connected to the tail end of the outer pipe sleeve, an inflation joint and an inflation negative pressure ball, two ends of the air duct are respectively communicated with the inflation balloon and the inflation joint, and the inflation joint is communicated with the inflation negative pressure ball.
As a further improvement of the invention, the telescopic mechanism comprises a telescopic pipe connected with the outer pipe sleeve, a clamping spring seat connected with the outer pipe sleeve and a clamping spring sleeve connected with the telescopic pipe, and a clamping spring is arranged between the clamping spring seat and the clamping spring sleeve.
As a further improvement of the invention, the sleeve translation mechanism comprises a connecting sleeve and an injection sleeve, wherein a square groove is arranged on the connecting sleeve, a gear hobbing wheel is connected on the connecting sleeve through a guard plate, the gear hobbing wheel penetrates through the square groove and is in meshed connection with a rack in the connecting sleeve, the rack is connected with one end of the injection sleeve, and the injection sleeve is connected with the telescopic pipe.
As a further improvement of the invention, the rotary pushing mechanism comprises a spiral handle and a chute control sleeve which are both of hollow structures, wherein the chute control sleeve is sleeved in the spiral handle, a Z-shaped long groove is arranged on the side wall of the chute control sleeve, a spiral groove is arranged on the inner wall of the spiral handle, a pin shaft is connected onto the Z-shaped long groove in a sliding manner, and a pin used for being clamped in the spiral groove is connected onto the pin shaft.
As a further improvement of the invention, the outer side of the branch of the Y-shaped support tube is connected with a tightening cutting tube, the tightening cutting tube is provided with a notch, the tightening wires are clamped on the notch to bind the Y-shaped support tube, and the adjacent tightening wires are connected through tightening connecting wires.
As a further improvement of the present invention, the tightening-cutting tube is provided with a cutting rod, and a head portion of the cutting rod is provided with a cutting edge for cutting the tightening wire.
In the invention, the sleeve translation mechanism drives the telescopic mechanism to move, so that the inner sleeve stretches in the outer sleeve, the Y-shaped support tube can be pushed forward to push the opening and closing valve, and the opening and closing valve is conveyed into the air passage, so that the air passage is protected from being easily operated; the invention has convenient operation and strong practicability.
Drawings
For ease of illustration, the invention is described in detail by the following preferred embodiments and the accompanying drawings.
FIG. 1 is a schematic view of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the third embodiment of the present invention;
FIG. 4 is a schematic view of the connection structure of the end of the outer tube sleeve of the present invention;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a schematic view of the connection structure of the inner tube sleeve of the present invention;
FIG. 7 is a schematic view of the structure of the first motion state of FIG. 6;
FIG. 8 is a schematic diagram illustrating a second motion state of FIG. 6;
FIG. 9 is a schematic view of the bracket clamping mechanism of the present invention;
FIG. 10 is a front view of FIG. 9;
FIG. 11 is one embodiment of the structure of the front end of the outer sleeve of the present invention;
FIG. 12 is a schematic diagram of a connection structure of a sleeve translation mechanism and a rotary pushing mechanism according to the present invention;
FIG. 13 is a schematic view of the internal connections of FIG. 12;
FIG. 14 is a schematic view of a chute control cover according to the present invention;
FIG. 15 is a schematic view of the internal structure of FIG. 14;
FIG. 16 is a schematic view of the internal structure of the telescopic mechanism of the present invention;
FIG. 17 is a schematic view showing the structure of the Y-shaped stent tube of the present invention in an uncontracted state with the cinched cut-off tube;
fig. 18 is a front view of fig. 17;
FIG. 19 is a schematic view showing the structure of the Y-shaped stent tube of the present invention in a contracted state when the Y-shaped stent tube is expanded and the cut tube is tightened;
FIG. 20 is a schematic view showing the connection structure between the Y-shaped stent tube of the present invention and the tightening/cutting tube in the non-expanded state;
FIG. 21 is a schematic view of a branch and tightening/cutting tube structure of a Y-shaped stent of the present invention;
FIG. 22 is a schematic diagram II of the branch and tightening/cutting tube of the Y-shaped stent tube of the present invention;
FIG. 23 is a schematic view showing the structure of the head of the cutting rod of the tightening-cutting tube of the present invention;
FIG. 24 is a schematic view showing the connection structure of the binding thread and the binding connection thread according to the present invention;
reference numerals: 1-outer tube sleeve, 11-open and close valve, 12-inflation mechanism, 13-air duct, 14-inflation balloon, 15-ventilation joint, 16-inflation negative pressure ball, 17-air duct, 2-inner tube sleeve, 21-branch tube, 22-bracket clamping mechanism, 23-bracket fastening sleeve, 24-elastic fastening clip, 25-bracket fixing end, 26-fixing bracket, 3-Y-shaped bracket tube, 31-tightening cutting tube, 32-notch, 33-tightening wire, 34-tightening connecting wire, 35-cutting rod, 36-cutting edge, 4-telescoping mechanism, 41-telescoping tube, 42-clamping spring seat, 43-clamping spring sleeve, 44-clamping spring, 5-tube translation mechanism, 51-connecting tube sleeve, 52-injection tube, 53-square groove, 54-rolling gear, 55-guard, 56-rack, 57-injection port, 6-rotation pushing mechanism, 61-spiral handle, 62-sliding groove control sleeve, 63-circle groove, 64-Z-shaped long groove, 65-spiral groove, 66-pin shaft, 67-pin, 7-guiding wire seat, 7-guiding wire.
Detailed Description
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24, the controllable inverted Y-shaped airway stent delivery device of the present invention includes an outer tube sleeve 1, an inner tube sleeve 2 disposed within the outer tube sleeve 1, a Y-shaped stent tube 3 connected to the inner tube sleeve 2, a telescoping mechanism 4 for telescoping the inner tube sleeve 2, and a sleeve translation mechanism 5 for moving the telescoping mechanism 4.
The tail end of the outer pipe sleeve 1 is provided with an openable and closable opening and closing flap 11, and the Y-shaped bracket pipe 3 is positioned in the outer pipe sleeve 1.
In the invention, the sleeve translation mechanism 5 drives the telescopic mechanism 4 to move, so that the inner sleeve 2 stretches in the outer sleeve 1, the Y-shaped support tube 3 can be pushed forwards to push the opening and closing valve 11 open and close, and the opening and closing valve 11 is conveyed into the air passage, so that the air passage is protected from being easily operated.
As shown in fig. 2 and 3, the present invention further includes a rotary pushing mechanism 6 that moves the cannula translation mechanism 5.
Further, a branch sleeve 21 is sleeved in the inner tube sleeve 2, and the branch sleeve 21 is communicated with the Y-shaped support tube 3.
As shown in fig. 6, 7 and 8, the present invention provides an embodiment of the inner pipe sleeve 2, wherein a bracket clamping mechanism 22 for clamping the inner pipe sleeve 2 is arranged in the inner pipe sleeve 2, the bracket clamping mechanism 22 comprises a bracket fastening sleeve 23 and an elastic fastening clip 24 connected to the inner wall of the bracket fastening sleeve 23 for clamping the inner pipe sleeve 2, and a bracket fixing end 25 for sleeving on the inner pipe sleeve 2 is arranged at the front end of the bracket fastening sleeve 23.
Further, the outer tube sleeve 1 is connected with an inflation mechanism 12, the inflation mechanism 12 comprises an air guide tube 13 connected to the outer wall of the outer tube sleeve 1, an inflation balloon 14 connected to the tail end of the outer tube sleeve 1, an inflation joint 15 and an inflation negative pressure ball 16, two ends of the air guide tube 13 are respectively communicated with the inflation balloon 14 and the inflation joint 15, and the inflation joint 15 is communicated with the inflation negative pressure ball 16.
As shown in fig. 15, the present invention provides an embodiment of a telescopic mechanism 4, wherein the telescopic mechanism 4 comprises a telescopic tube 41 connected with an outer tube sleeve 1, a clamp spring seat 42 connected with the outer tube sleeve 1, and a clamp spring sleeve 43 connected with the telescopic tube 41, and a clamp spring 44 is arranged between the clamp spring seat 42 and the clamp spring sleeve 43.
In the prior art, the conveying system can generate pause conveying operation in the conveying process, an operator is required to hold the conveying system at the moment, and the conveying system in the prior art is inconvenient in use, but in operation, the pause operation can occur at any time, and the two-stage pause buttons can not meet the requirements.
As shown in fig. 11, the present invention provides an embodiment of the cannula translation mechanism 5, wherein the cannula translation mechanism 5 comprises a connecting cannula sleeve 51 and an injection cannula 52, a square groove 53 is arranged on the connecting cannula sleeve 51, a rolling gear 54 is connected on the connecting cannula sleeve 51 through a guard plate 55, the rolling gear 54 passes through the square groove 53 to be meshed with a rack 56 positioned in the connecting cannula sleeve 51, the rack 56 is connected with one end of the injection cannula 52, the injection cannula 52 is connected with the telescopic tube 41, and an injection port 57 is connected on the injection cannula 52.
In the prior art, the surface of the conveying system is smooth, and the operation is particularly inconvenient under the condition that medical staff has gloves, the slipping phenomenon is easy to occur, the airway stent is displaced and the like, and the life safety of a patient is endangered.
The invention provides an embodiment of a rotary pushing mechanism 6, wherein the rotary pushing mechanism 6 comprises a spiral handle 61 and a chute control sleeve 62 which are both of hollow structures, the chute control sleeve 62 is sleeved in the spiral handle 61, a Z-shaped long groove 64 is arranged on the side wall of the chute control sleeve 62, a spiral groove 65 is arranged on the inner wall of the spiral handle 61, a pin shaft 66 is connected on the Z-shaped long groove 64 in a sliding manner, and a pin 67 used for being clamped in the spiral groove 65 is connected on the pin shaft 66; the outer side wall of the screw handle 61 is provided with a circular groove 63.
In the invention, a step with a conical surface is arranged on a clamp spring sleeve 43, and a clamp spring 44 is a conical surface; the guide wire 7 penetrates through the whole invention, penetrates through the spiral handle 61 and then penetrates out of the Y-shaped bracket tube 3; the outer wall of the bracket fastening sleeve 23 is connected with a fixed support plate 26.
The invention provides an embodiment, the inside of the spiral handle 61 is sleeved with a chute control sleeve 62, the periphery of the spiral handle 61 is designed with equidistant circular grooves 63 for increasing the friction force during holding and preventing slipping, the spiral handle 61 is axially a hollow inner ring penetrated from the head to the tail, the inner ring is designed with a spiral groove 65 wound around the inner ring of the spiral handle 61, the chute control sleeve 62 is hollow, the outline of the outside is provided with circular steps at the front and the back, the middle section of the chute control sleeve 62 is provided with two sections of corresponding Z-shaped long grooves 64 for sleeving the spiral handle 61, the two sections of Z-shaped long grooves 64 are in a position relationship of the axis 180 of the chute control sleeve 62, a pin shaft 66 is sleeved in the chute control sleeve 62, two pins 67 which are vertically symmetrical are arranged on the pin shaft 66, the pin shaft 67 just can pass through the Z-shaped long grooves 64 of the chute control sleeve 62 and are clamped in the spiral groove 65 of the spiral handle 61, when the spiral handle 61 rotates relative to the chute control sleeve 62 and the pin shaft 66, the pin 67 is clamped in the spiral groove 66, the front and the sleeve is arranged at the front end of the sleeve 53 of the spiral sleeve 56, the front and the sleeve is in a position of the sleeve 53 which is in a rotary joint, the front of the sleeve 53 is arranged at the front of the sleeve wall of the spiral sleeve 62, the guide sleeve is in a rotary sleeve 53, the front of the sleeve 53 is arranged in a rotary joint of the spiral sleeve 53, and the front of the sleeve 53 is arranged in a rotary sleeve 53, and the front of the sleeve 53 is in a rotary sleeve 53, and the sleeve is in a rotary sleeve of the direction of the sleeve 53, simultaneously, the injection sleeve 52 is sleeved inside the connecting sleeve 51, the injection sleeve 52 drives the axial movement of the rack 56 to drive the expansion of the injection sleeve 52 through the rotation of the roller gear 54, the connecting sleeve 51 is provided with a separated injection port 57 near the front end, the injection port 57 is fixedly connected with the connecting sleeve 51 at a certain angle, the front end of the connecting sleeve 51 is coaxially connected with the telescopic pipe 41, the outer sleeve 1 is sleeved outside the telescopic pipe 41, the lower end of the outer sleeve 1 is provided with a clamping spring sleeve 43, the inner wall of the clamping spring sleeve 43 is fixedly connected with a clamping spring 44, the clamping spring 44 is provided with a conical surface, when the outer sleeve 1 moves towards the front end, the clamping spring 44 is clamped on the telescopic pipe, so that the outer sleeve 1 cannot move forwards, when the outer sleeve 1 moves backwards, the angle of the clamping spring cannot clamp the telescopic pipe, so that the outer sleeve 1 can move backwards relative to the telescopic pipe, it can also be set that the lower part of the snap spring sleeve 43 is covered with the snap spring seat 42, the outer tube sleeve between the snap spring seat 42 and the snap spring sleeve 43 is sleeved with the snap spring 44, when the snap spring sleeve 43 moves to the snap spring seat 42, because one side of the back end of the snap spring seat 42, which is close to the snap spring 44, is provided with a step with a conical surface, when the snap spring seat 42 is pressed, the step with the conical surface can jack up the conical degree of the snap spring 44, so that the card of the snap spring 44 is clamped on the step of the snap spring seat 42, because the snap spring seat 42 is fixed on the telescopic tube, the telescopic tube cannot be moved, when the snap spring sleeve 43 and the outer tube sleeve 1 move to the snap spring seat 42 for clamping, the outer tube sleeve cannot perform telescopic movement relative to the telescopic tube, the whole outer tube sleeve 1 is in an arc bending shape, the inner tube wall of the outer tube sleeve 1 is externally fixed with the air guide tube 13 extending to the front end position of the outer tube sleeve 1 along the axial direction of the outer tube sleeve 1, the front end of the outer pipe sleeve 1 is provided with a circle of uniformly distributed inflatable bags 14 around the pipe wall, each inflatable bag 14 is of a hemi-ellipsoidal shape, adjacent inflatable bags 14 are communicated through an air pipe 17, the other end of the air pipe 13 extends out of the outer pipe sleeve 1, the other end of the air pipe 13 is connected with an air joint 15, the other end of the air joint 15 is connected with an air negative pressure ball 16, the air negative pressure ball 16 can inflate and deflate the inflatable bags 14, the inside of the telescopic pipe 41 is sleeved with an inner pipe sleeve 2, the front end of the telescopic pipe 41 is internally provided with a bracket clamping mechanism 22, the rear end of the bracket fastening sleeve 23 is connected with a bracket fixing end 25 with a conical shape, three groups or more than three groups of fixing support plates 26 are uniformly distributed on the outer wall of the bracket fastening sleeve 23, the fixing support plates 26 are propped against the inner wall of the bracket fastening sleeve 23 for fixing the bracket fastening sleeve 23, the circumference of the front end face of the bracket fastening sleeve 23 is uniformly and fixedly connected with a plurality of elastic fastening clamps 24, the elastic fastening clamps 24 turn to extend into the bracket fastening sleeve 23, the part extending into the bracket fastening sleeve 23 is in a wavy shape, the wavy part of the elastic fastening clamps 24 has elasticity, a gap exists between the wavy part in the bracket fastening sleeve 23 and the inner sleeve 2, the gap can be used for the Y-shaped bracket tube 3 to pass through in a contracted state, the wavy part of the elastic fastening clamps 24 plays a role in clamping the inner sleeve 2, two tube cavities are arranged in the inner sleeve 2, two wire guide tubes are respectively sleeved, branch sleeves 21 are respectively sleeved on the two wire guide tubes, each branch sleeve 21 is provided with a bracket clamping mechanism 22 for communicating the two branches of the Y-shaped bracket tube 3 on the branch sleeve, the main path bracket fastening sleeve 23 and the branch bracket fastening sleeve are fixed with bullet-shaped bracket fastening sleeve ends in opposite direction ends, the medical silicon rubber film is characterized in that the medical silicon rubber film is used for guiding a support to tighten and plug and is convenient for pushing open and close a flap, the front end of an outer tube sleeve is fixedly connected with the flap 1, meanwhile, a guide wire tube extends out of the end of the front end of a corresponding branch support fastening sleeve and is fixedly connected with the end of the branch support fastening sleeve, the movement of the guide wire tube can drive the branch support fastening sleeve to move, the flap 11 is an integrally connected and openable and closable medical silicon rubber film with the root of two quarter ellipses, has plasticity and elasticity, when the flap is opened and closed, a half rugby shape can be formed, the vertical section of the flap is ellipse, one end of the flap is shorter, the other vertical end of the flap is longer, and the design of the similar half rugby is convenient for enabling the flap to play a guiding function when the flap is closed, and meanwhile, the ellipse arrangement with one short section and the other vertical end of the flap is long can be matched with the outline shape of a human glottis, so that the injury to the glottis when the device enters the glottis is reduced to the greatest extent. Meanwhile, in the process that the opening and closing valve closing state device enters the inside of a lumen through a glottis, under the guiding protection of the opening and closing valve in the closing state, the angle change of the guide wire pipes on the two branch circuits and the corresponding guide wire pipe fastening sleeve parts of the branch circuits cannot occur due to external obstruction or the situation that the guide wire pipes of the two branch circuits are twisted and knotted mutually, so that unnecessary troubles in the operation process are avoided, when the opening and closing valve 11 is opened, if no external force acts on the opening and closing valve under the action of self elasticity, the opening and closing valve can be automatically closed, the front end of the clamping mechanism of the support clamping mechanism on the branch circuit is connected with a conical support fixing end, the support fixing mechanism of the support part is internally provided with a support sleeve, the support sleeve extends out from the support fixing end of the support fastening sleeve front end of the support part, the inner sleeve and the support sleeve are internally sheathed with guide wires 7, one end of the guide wires 7 extend out from the support sleeve, and the other end extends out from the rear end of the screw handle 61; when operation is needed, the opening and closing valve 11 is in a closed state, the inflatable balloon 14 is in an uninflated state, under the guidance of the opening and closing valve 11 in the closed state, and when the opening and closing valve 11 is in the closed state, the clamp spring sleeve 43 on the outer tube sleeve 1 is arranged above the clamp spring seat 42 of the telescopic tube 41 for a certain distance, the front end part of the outer tube sleeve 1 is sent to a designated position of a tube cavity through the glottis of a patient, the inflatable negative pressure ball 16 is pressed, gas enters the air duct 13 through the inflatable negative pressure ball 16, then enters the air duct 13, finally, the air duct uniformly flows into each inflatable balloon 14, when the inflatable balloon 14 is inflated, the inflatable balloon 14 clamps the tube cavity at the position, so that the front end of the stent conveying system is fixed in the tube cavity, the outer tube sleeve 1 is held by hands at the moment at the lower position, the outer tube sleeve 1 is pulled backwards, so that the outer tube sleeve 1 moves backwards relative to the telescopic tube 41, the open-close valve 11 at the front end of the outer pipe sleeve 1 is pushed open by the support fastening sleeve of the branch pipe, the open-close valve 11 of the outer pipe sleeve 1 is pushed open by the telescopic pipe 41 continuously and pulled backwards, the support fastening sleeve of the branch pipe is exposed out of the telescopic pipe 1, when the outer pipe sleeve 1 is pulled until the clamp spring 44 in the clamp spring sleeve 43 is clamped on the clamp spring seat 42, the open-close valve 11 at the front end of the outer pipe sleeve 1 is completely lack of the restraint of the outer pipe sleeve 1 and the open-close valve 11 at the moment, the support fastening sleeves of the two branch pipes are naturally separated, the support fastening sleeves of the two branch pipes are adjusted to have angles to respectively refer to corresponding branch pipe cavities, the spiral handle 61 is rotated, the spiral handle 61 rotates relative to the connecting sleeve, under the action of the spiral groove 65 on the inner wall of the spiral handle and the Z-shaped long groove 64 of the chute control sleeve, the pin shaft 66 follows the pin 67 on the pin shaft 67 to move along the axial direction of the chute control sleeve 62, the connecting sleeve 51 moves along with the pin shaft 66 in the same way, because the connecting sleeve 51 is fixedly connected with the inner tube sleeve 2 and the rack 56, the connecting sleeve 51 drives the inner tube sleeve 2 to move forwards, the inner tube sleeve 2 drives the wire guide tube 13 and the branch support fastening sleeves 23 to synchronously move forwards, at the moment, the support fastening sleeves of the two branches respectively enter the corresponding branch tube cavities, because eight elastic fastening clamps 24 in the branch support fastening sleeves are larger than the friction resistance of four elastic fastening clamps 24 in the main support fastening sleeves, the Y-shaped support 3 restrained and clamped by the main support fastening sleeves 23 and the branch support fastening sleeves at the moment moves forwards along with the inner tube sleeve 2, gradually breaks away from the support fastening sleeves 23 of the main way, when the Y-shaped support 3 is about to break away from the support fastening sleeves 23 of the main way, the fingers roll the rolling gear 54 because the rack 56 is fixedly connected with the injection sleeve 52, at this time, the finger rolling roller gear 54 finely adjusts the moving Y-shaped bracket 3, the roller gear 54 drives the injection sleeve 52 to move, the injection sleeve 52 drives the inner sleeve 2, the inner sleeve 2 drives the Y-shaped bracket 3 to slowly separate from the bracket fastening sleeve 23 of the main road, when the Y-shaped bracket 3 completely separates from the bracket fastening sleeve 23 of the main road, the main road part of the Y-shaped bracket 3 expands and expands to tightly corresponding main road pipe cavity parts and fix the main road part of the Y-shaped bracket 3 to the corresponding main road pipe cavity parts, at this time, the two branch road parts of the Y-shaped bracket 3 are also restrained and tightened in the elastic fastening clamps of the bracket fastening sleeves of the branch road, at this time, the two wire guide pipes extending out from the bottom end of the spiral handle 61 are pushed by hand, so that the wire guide pipes axially move forwards inside the inner sleeve 2 because the wire guide pipes are fixedly connected with the bracket fastening sleeves 23 of the branch road, so when pushing the wire guide tube, the wire guide tube drives the support fastening sleeve 23 of the branch on the corresponding wire guide tube to move forwards, because the main path part of the Y-shaped support 3 is already expanded and fixed on the main path lumen, when the branch support fastening sleeve moves forwards, the Y-shaped support 3 is fixed, at the moment, the branch part of the Y-shaped support 3 is slowly separated from the corresponding branch support fastening sleeve 23, the wire guide tube is pushed by hand, when the branch part of the Y-shaped support 3 is completely separated from the support fastening sleeve 23 of the branch, the branch part of the support is expanded and expanded to expand and tightly corresponding branch lumen part and enable the branch part of the Y-shaped support 3 to be fixed on the corresponding branch lumen part, at the moment, the Y-shaped support 3 is fully expanded and fixed on the corresponding lumen position, at the moment, the spiral handle 61 is reversely rotated, the support fastening sleeve 23 of the branch is contracted backwards along with the inner sleeve 1, gas is discharged through the inflating negative pressure 16 balls, and the device system is taken out from the body.
The specific working process is as follows: when the screw handle 61 is required to work, the screw handle 61 rotates relative to the connecting sleeve 51, under the action of the screw groove 65 on the inner wall of the screw handle 61 and the Z-shaped long groove 64 of the chute control sleeve 62, the pin shaft 66 follows the pin 67 on the pin shaft to move axially along the chute control sleeve 62, the connecting sleeve 51 follows the pin shaft 66 to move similarly, when the connecting sleeve 51 is adjusted to a proper length, the rolling gear 54 rotates, the rolling gear 54 drives the rack 56 and moves reversely axially, the rack 56 drives the injection sleeve 52 to move axially and telescopically, when the injection sleeve 52 is adjusted to a proper position, the opening and closing valve 11 at the front end of the outer sleeve 1 is in a closed state, at the moment, the inner sleeve 2 and the branch sleeve at the front end part of the outer sleeve 1 and the bracket clamping mechanism 22 are both contracted in the outer sleeve 1 and the opening and closing valve 11, the bracket clamping mechanism 22 at the periphery of the inner sleeve 2 is contracted in the telescopic tube 41, the branch stent clamping mechanism is contracted in the opening and closing flap 11, at the moment, the main pipe and the two branch pipes of the Y-shaped stent pipe 3 are respectively clamped in the wave elastic clamps of the three stent clamping mechanisms, the outer pipe sleeve 1 is stretched into the Y-shaped air passage, the clamping spring seat 42 is jacked, the clamping spring 44 is separated from the telescopic pipe 41, the outer pipe sleeve 1 is pulled backwards along the direction of the telescopic pipe 41, the telescopic pipe 41 is stretched forwards relative to the outer pipe sleeve 1, the branch stent clamping mechanism jacks the opening and closing flap 11, the inner pipe sleeve 2 is conveyed inwards, the opening and closing flap 11 is naturally separated by the jack-up branch stent and the stent clamping mechanisms on the branch stent sleeve, the two branch pipes stretch into the two branch air passages respectively, at the moment, the telescopic pipe 41 is pulled backwards, the telescopic pipe 41 is fixedly connected with the stent clamping mechanism 22 at the periphery of the inner pipe sleeve 2, at the moment, the stent clamping mechanism 22 at the periphery of the inner pipe sleeve 2 moves backwards along the telescopic pipe 41, simultaneously, the inner pipe sleeve 2 is conveyed to the inside, the branch pipe sleeve follows the inner pipe sleeve to convey to the inside, the clamping mechanism of the branch pipe follows the branch pipe sleeve to convey to the branch air passage, at the moment, the distance between the bracket clamping mechanism in the main air passage and the bracket clamping mechanism in the branch air passage is increased, at the moment, the Y-shaped bracket tube 3 is separated from the bracket clamping mechanism to enter the Y-shaped air passage, the Y-shaped bracket is converted into an expansion state from a contraction state to prop up the Y-shaped air passage, at the moment, the bracket conveying system is pulled out from the air passage, and the Y-shaped bracket tube 3 is conveyed completely.
In reality, if there is a case that the patient cannot place the stent in a delivery manner, the operation becomes particularly complex, and some unnecessary risks may be generated due to the complexity of placing the stent, and in order to solve this problem, the present invention adopts a second scheme, as shown in fig. 16, 17, 18, 19, 20, 21, 22, 23 and 24: the outside of the branch of the Y-shaped bracket tube 3 is connected with a tightening cutting tube 31, the tightening cutting tube 31 is provided with a notch 32, a tightening wire 33 is clamped on the notch 32 to bind the Y-shaped bracket tube 3, and adjacent tightening wires 33 are connected through tightening connecting wires 34.
In order to cut the binding thread 33 better, the binding cutting tube 31 is provided with a cutting rod 35, and the head of the cutting rod 35 is provided with a cutting edge 36 for cutting the binding thread 33; that is, when the encountered patient needs to place the lumen of the stent position and cannot carry out the delivery, at this time, the mode of rotating the spiral handle and manually delivering the guide wire tube to make the related structure of the branch stent fastening sleeve forward delivery cannot be adopted, the scheme needs to be adopted, the related structure of the stent fastening sleeve fixedly connected with the branch at the front end of the guide wire tube is removed, the structure of the first scheme on the branch only retains the guide wire tube and the guide wire, at this time, the main path part of the Y-shaped stent is tightly clamped by the main path stent fastening sleeve and the elastic fastening clip of the first scheme on the main path, the outer sides of the two branch parts of the Y-shaped stent 3 are tightly attached with tightening cut-off tubes 31, three or more notches 32 are uniformly arranged on the positions of the tightening cut-off tubes 31 corresponding to the length of the Y-shaped stent 3, and the notches 32 are vertically arranged relative to the axial direction of the tightening cut-off tubes 31, the notch 32 is arranged at one end of the outer side of the tightening cutting tube 31 facing the lumen, the tightening wire 33 is arranged between the notch 32 of the tightening cutting tube 31 and the Y-shaped bracket 3, the tightening wire 33 tightens and binds the Y-shaped bracket 3 and the tightening cutting tube 31 together, the inside of the tightening cutting tube 31 is hollow, the inside of the tightening cutting tube 31 is provided with a cutting rod 35, the front end of the cutting rod 35 is in a reverse U-shaped arrangement, the reverse direction of the cutting rod 35 faces the lumen side, the inner side of the reverse U-shaped is fixedly provided with a cutting edge 36, the cutting edge 36 is a V-shaped edge, the V-shaped edge is linearly narrowed from the opening to the bottom, the reverse direction of the cutting rod 35 faces the lumen side so that the surface of the cutting edge 36 is perpendicular to the notch 32, the tightening wire 33 of the tightening Y-shaped bracket 3 and the tightening cutting tube 31 is exactly perpendicular to the V-shaped edge 36, therefore, when the tightening wire 33 is cut off, the bottom of the V-shaped cutting edge can smoothly cut off the tightening wire 33, the internal hollow section of the tightening and cutting tube 31 is an oblong hollow section which is matched with the U shape of the cutting rod, so that the cutting rod 35 can not twist and turn when the internal hollow section of the tightening and cutting tube 31 moves, and the tightening wire can be cut off vertically all the time. A tightening connection wire 34 is fixedly connected between adjacent tightening wires 33 at the notch 32 of the tightening cutting tube 31, the tightening connection wire 34 is always positioned in the hollow of the tightening cutting tube 31, the tightening connection wire 34 sequentially connects the tightening wires 33 on the same branch and extends from the rear end of the tightening cutting tube 31, and the rear ends of the tightening cutting tube 31 and the cutting rod 35 extend from the rear end of the screw handle 61. When an operation is needed, the device system is sent into a designated position in the body and the inflatable balloon 14 is fixed, the operation is consistent with the first scheme, when the device system reaches the designated position, the cutting rod 35 is pulled backwards, the cutting rod 35 axially moves backwards in the hollow interior of the tying cut tube 31 with the oblong cross section, the tying wires 33 are sequentially cut off by the cutting rod 35 in the moving process, when the tying wires 33 bound by the Y-shaped support 3 begin to be cut off, the branches of the Y-shaped support 3 are released from the tying cut tube, after the tying wires 33 bound by the Y-shaped support 3 are completely cut off, the branches of the Y-shaped support 3 are fixed in the cavity of the branch where the Y-shaped support 3 is located, because the connected tying connecting wires 33 above the tying cut tube 31 extend out of the tying cut tube 31 all the time from the hollow interior of the tying cut tube 31, the tying connecting wires 34 are pulled out of the hollow interior of the tying cut tube 31 from the rear end of the tying cut tube 31, then the tying cut tube 31 is pulled backwards, the branches of the Y-shaped support 3 are pulled backwards from the space between the Y-shaped support 3 and the cavity, the Y-shaped support 3 are pulled backwards from the Y-shaped support 3, the branches are released from the main support 3 and the main support 3 is completely released from the main support 3, and then the main support 3 is completely released from the main support 3 is completely, and the main support is completely released from the main support 3 is completely released.
In the invention, four groups of wavy elastic clamps which are distributed circumferentially and bent towards the inside of the bracket fastening sleeve are arranged at the front end of the bracket fastening sleeve of the bracket clamping mechanism 22, bullet-shaped bracket fastening sleeve ends are respectively arranged at the ends of the bracket fastening sleeves of the main road and the branch road in opposite directions, and are used for guiding the shrinkage, the tightening and the plugging of the bracket and facilitating the pushing and the opening and the closing of the valve 11.
A circle of inflatable balloons 14 which are uniformly distributed in a plurality of groups are arranged on the wall of the outer tube sleeve 1, each inflatable balloon 14 is of a hemi-ellipsoidal shape, and the adjacent inflatable balloons 14 are communicated through an air tube 17, so that gaps sister between the inflatable balloons 14 are reduced most possibly when the inflatable balloons 14 are inflated and blocked, and no gas is directed towards the direction of the tube wall, so that the gas inflation is quicker, and the blocking effect is more obvious; the other end of the air duct 13 is connected with an inflatable negative pressure ball 16 through an air vent joint 15, the inflatable negative pressure ball 16 can be used for inflating the inflatable balloon 14 more quickly than an injector, and the defect that the steps of inflating by using the injector are tedious and the operation of occupying two hands is avoided.
The clamping spring sleeve 43 is arranged at the lower end of the outer tube sleeve 1, the clamping spring seat 42 is covered below the clamping spring sleeve 43, the clamping spring 44 is sleeved on the outer tube sleeve between the clamping spring seat 42 and the clamping spring sleeve 43, and the clamping spring 44 is arranged into a conical profile, so that the outer tube sleeve 1 and the telescopic tube 41 can be in telescopic movement and hover and self-lock at any time in the operation process, and a doctor can conveniently control the treatment degree at any time.
The front end of the outer tube sleeve 1 is fixedly connected with the opening and closing valve 11, the opening and closing valve 11 is an integrally connected medical silica gel film which is in a shape of a quarter ellipse and can be opened and closed, the medical silica gel film has elasticity, when the medical silica gel film is closed, the two valves of the opening and closing valve 11 are combined together to form an ellipse, the guide effect on the air passage can be achieved, the outer tube sleeve and an internal mechanism are guided into the air passage under the effect of accidentally injuring the air passage, the internal mechanism of the medical silica gel film can be protected, and when the opening and closing valve is automatically jacked up, the cambered surface structure of the medical silica gel film can not damage the air passage.
The connecting sleeve 51 is provided with a rolling gear 54, a rack 56 is arranged in the hollow of the connecting sleeve 51 and meshed with the rolling gear 54, the front end of the rack 56 is fixedly connected with the injection sleeve 52, and the rolling gear 54 can adjust the expansion and contraction amount of the injection sleeve 52 in the connecting sleeve 51.
In the invention, the inner wall of the screw handle 61 is designed as a spiral groove, the middle section of the chute control sleeve 62 in the screw handle 61 is provided with two sections of Z-shaped long grooves 64, the position relationship of the two sections of Z-shaped long grooves 64 is that the chute control sleeve axis 180 rotates correspondingly, the pin shaft 66 is sleeved in the chute control sleeve 62, and the telescopic tube 41 can be controlled to stretch and retract by rotating the screw handle 61, so that the length aspect can be finely adjusted.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The controllable inverted Y-shaped airway support conveying device is characterized by comprising an outer pipe sleeve, an inner pipe sleeve arranged in the outer pipe sleeve, a Y-shaped support pipe connected with the inner pipe sleeve, a telescopic mechanism for enabling the inner pipe sleeve to perform telescopic movement and a sleeve translation mechanism for enabling the telescopic mechanism to perform movement; the tail end of the outer pipe sleeve is provided with an openable and closable opening and closing flap, and the Y-shaped support pipe is positioned in the outer pipe sleeve;
the medical silica gel film which is characterized in that the opening and closing valve is an openable and closable medical silica gel film which is formed by connecting the root parts of two quarter ellipses, has plasticity and elasticity, can form a half rugby shape when the opening and closing valve is closed, has an elliptic vertical section when the opening and closing valve is closed, and has a shorter one end and a longer vertical one end; when the opening and closing valve is opened, the opening and closing valve can be automatically closed under the action of self elasticity if no external force acts on the opening and closing valve;
the rotary pushing mechanism is used for enabling the sleeve translation mechanism to move;
the telescopic mechanism comprises a telescopic pipe connected with the outer pipe sleeve, a clamping spring seat connected with the outer pipe sleeve and a clamping spring sleeve connected with the telescopic pipe, and a clamping spring is arranged between the clamping spring seat and the clamping spring sleeve;
the sleeve translation mechanism comprises a connecting sleeve and an injection sleeve, wherein a square groove is formed in the connecting sleeve, a gear hobbing wheel is connected to the connecting sleeve through a guard plate, the gear hobbing wheel penetrates through the square groove and is in meshed connection with a rack in the connecting sleeve, the rack is connected with one end of the injection sleeve, and the injection sleeve is connected with the telescopic pipe;
the rotary pushing mechanism comprises a spiral handle and a chute control sleeve which are of hollow structures, the chute control sleeve is sleeved in the spiral handle, a Z-shaped long groove is formed in the side wall of the chute control sleeve, a spiral groove is formed in the inner wall of the spiral handle, a pin shaft is connected onto the Z-shaped long groove in a sliding mode, and a pin used for being clamped in the spiral groove is connected onto the pin shaft.
2. The controllable inverted Y-shaped airway stent delivery device of claim 1, wherein a bypass sleeve is sleeved within the inner sleeve, the bypass sleeve being in communication with the Y-shaped stent tube.
3. The controllable inverted-Y airway stent delivery device according to claim 2, wherein a stent clamping mechanism for clamping the inner tube sleeve is arranged in the inner tube sleeve, the stent clamping mechanism comprises a stent fastening sleeve and an elastic fastening clip connected to the inner wall of the stent fastening sleeve for clamping the inner tube sleeve, and a stent fixing end for sleeving the inner tube sleeve is arranged at the front end of the stent fastening sleeve.
4. A controllable inverted Y-type airway stent delivery device according to claim 1 or 3, wherein the outer tube sleeve is connected with an inflation mechanism, the inflation mechanism comprises an air duct connected to the outer wall of the outer tube sleeve, an inflatable balloon connected to the tail end of the outer tube sleeve, an air joint and an inflatable negative pressure ball, two ends of the air duct are respectively communicated with the inflatable balloon and the air joint, and the air joint is communicated with the inflatable negative pressure ball.
5. The controllable inverted-Y-shaped airway stent delivery device according to claim 1, wherein a tightening cut-off tube is connected to the outer side of a branch of the Y-shaped stent tube, a notch is provided in the tightening cut-off tube, and tightening wires are clamped in the notch to bind the Y-shaped stent tube, and adjacent tightening wires are connected by tightening connecting wires.
6. The controllable inverted Y-shaped airway stent delivery device of claim 5, wherein said cinch-cut tube is provided with a cut-off bar, the head of said cut-off bar being provided with a cut-off edge for cutting off said cinch wire.
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| CN201810449546.3A CN108392298B (en) | 2018-05-11 | 2018-05-11 | Controllable inverted Y-shaped airway support conveying device |
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| CN201810449546.3A CN108392298B (en) | 2018-05-11 | 2018-05-11 | Controllable inverted Y-shaped airway support conveying device |
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| CN108392298B true CN108392298B (en) | 2024-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109620492A (en) * | 2019-01-31 | 2019-04-16 | 郑州大学第附属医院 | Through duodenofiberscope Retrograde device under Y type biliary tract rack scope |
| CN113384381B (en) * | 2021-08-17 | 2021-12-10 | 上海微创心脉医疗科技(集团)股份有限公司 | Medical device |
| CN117426836B (en) * | 2023-12-21 | 2024-04-02 | 中国人民解放军总医院第六医学中心 | Coronary artery direct perfusion head in minimally invasive heart surgery |
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| CN108392298A (en) | 2018-08-14 |
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