CN117562630B - Arterial lesion valve cutting device with supporting and positioning functions - Google Patents
Arterial lesion valve cutting device with supporting and positioning functions Download PDFInfo
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- CN117562630B CN117562630B CN202410059470.9A CN202410059470A CN117562630B CN 117562630 B CN117562630 B CN 117562630B CN 202410059470 A CN202410059470 A CN 202410059470A CN 117562630 B CN117562630 B CN 117562630B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 72
- 230000003902 lesion Effects 0.000 title claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 106
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000001125 extrusion Methods 0.000 claims description 15
- 230000001965 increasing effect Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 210000000709 aorta Anatomy 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001575 pathological effect Effects 0.000 description 3
- 230000002308 calcification Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010058968 Heart valve calcification Diseases 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 210000003709 heart valve Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000552 rheumatic effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
- A61B2017/00783—Valvuloplasty
Abstract
The invention discloses an arterial lesion valve cutting device with supporting and positioning functions, and relates to the technical field of medical appliances. Aims to solve the technical problem that the residual valve circumference shape is irregular when the traditional surgical knife resects the diseased valve. The invention provides an arterial lesion valve cutting device with a supporting and positioning function, which comprises an adjustable bent sheath tube, wherein a transmission catheter is connected in a sliding manner in the adjustable bent sheath tube, a transmission ring is connected in a sliding manner in the transmission catheter, annular equidistant ring cutting elastic pieces are fixedly connected with the transmission ring, a cutter is arranged at one end, far away from the transmission ring, of each ring cutting elastic piece, and equidistant reinforcing folding rods are fixedly connected between the adjacent ring cutting elastic pieces. The invention adjusts the distance between annular equidistant cutters to make the diameter of the circle formed by the cutters equal to that of the part to be cut of the valve of the patient, and cuts the diseased valve along the periphery of the hole once by rotating the cutters, so that the shape of the rest valve periphery is regular and tidy, thereby facilitating the placement of the follow-up artificial valve.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to an arterial lesion valve cutting device with supporting and positioning functions.
Background
Heart valves are "one-way valves" that grow between the atrium and ventricle, the ventricle and the aorta to ensure unidirectional blood flow, ensuring proper functioning of the heart, and valve lesions can lead to reduced areas of heart pumping, one common valve lesion being a rheumatic valve disease, which initially manifests itself as thick calcification and fusion of the tip of the valve, followed by extension to the annulus, calcification and calcareous deposition of the valve leaflets limiting the opening of the valve leaflets.
When heart valve calcification is serious, the diseased valve needs to be resected and replaced by the valve replacement operation, wherein the suture-free replacement operation has small damage to a patient and strong controllability, and can be replaced by the valve of a patient with weak body, but the suture-free valve replacement operation at present has the advantages of small incision and small operation space in the process of resecting the valve, the shearing difficulty by adopting the traditional surgical knife is large, and the residual paravalvular shape is easy to be irregular, so that the implantation of the subsequent artificial valve is influenced.
Disclosure of Invention
The invention provides an arterial lesion valve cutting device with a supporting and positioning function, which aims to overcome the defect that the shape of the residual valve circumference is irregular when a traditional scalpel resects a lesion valve.
The utility model provides an arterial lesion valve cutting device with support locate function, includes adjustable curved sheath pipe, sliding connection has the transmission pipe in the adjustable curved sheath pipe, transmission pipe sliding connection has the transmission ring, the transmission ring rigid coupling has annular equidistant ring to cut the shell fragment, the ring is cut the shell fragment and is kept away from the cutter is installed to the one end of transmission ring, and is adjacent the rigid coupling has equidistant enhancement folding bar between the ring cuts the shell fragment, the transmission ring is kept away from one side rotation of ring cuts the shell fragment is connected with the regulation pipe, be provided with first guide slot in the transmission pipe, the regulation pipe passes through first guide slot with transmission pipe sliding connection, the transmission pipe with the regulation pipe all is connected with external operating handle, the transmission ring is provided with and is used for with the alignment subassembly that the cutter was adjusted.
Further preferably, the alignment assembly comprises an adjustment column, the adjustment column is in spline connection with the transmission ring, an annular equidistant adjustment piece is fixedly connected to one side of the annular cutting elastic piece, which is close to the annular equidistant adjustment column, of the annular cutting elastic piece, the adjustment piece is fixedly connected to the adjacent annular cutting elastic piece, a second guide groove is formed in one side, which is close to the adjustment column, of the adjustment catheter, and the adjustment column is in threaded connection with the adjustment catheter through the second guide groove.
Further preferably, the circular cutting elastic sheet is provided with an expanding part and a torsion part in sequence from the direction of the transmission circular to the adjacent cutter, the elastic modulus of the expanding part is larger than that of the torsion part, and one end of the adjusting piece, which is far away from the adjusting column, is fixedly connected with one side, which is close to the adjacent cutter, of the adjacent torsion part.
Further preferably, the valve cutting device further comprises a supporting mechanism arranged on the transmission catheter, the supporting mechanism is used for supporting a valve to be cut, the supporting mechanism comprises a positioning catheter, the positioning catheter is arranged in the transmission catheter, one end of the positioning catheter, which is far away from the transmission catheter, is fixedly connected with a connecting disc, the connecting disc is hinged with an annular equidistant supporting column, a transmission column is slidably connected in the positioning catheter, the transmission column is fixedly connected with an annular equidistant supporting fan, the supporting column is hinged with the adjacent supporting fan, and the positioning catheter and the transmission column are connected with an external operation handle.
Further preferably, equidistant gathering and folding rods are fixedly connected between the adjacent support columns, elastic films are connected between the adjacent support fans, and the elastic films and the gathering and folding rods are used for preventing cut valves from falling.
Further preferably, a positioning block is fixedly connected to one side, close to the transmission catheter, of the supporting fan, equidistant grooves are formed in the positioning block, and the grooves of the positioning block are used for increasing friction force to the valve.
Further preferably, the valve cutting device further comprises a fixing mechanism arranged on the adjusting column, the fixing mechanism is used for fixing a valve to be cut, the fixing mechanism comprises an extrusion barrel, the extrusion barrel is slidably connected to the adjusting column, a fixing ring is fixedly connected to one side, close to the supporting fan, of the positioning guide pipe and is slidably connected with a mounting plate, the extrusion barrel is matched with the mounting plate, a tension spring is fixedly connected between the mounting plate and the fixing ring, the mounting plate is slidably connected with a sliding block with annular equidistant, a positioning pointed column is slidably connected to one side, away from the extrusion barrel, of the sliding block, a spring is fixedly connected between the positioning pointed column and the adjacent sliding block, and the mounting plate is provided with a tightening assembly for tightening the valve to be cut.
Further preferably, a spring is fixedly connected between the extrusion cylinder and the adjusting column, the distance from the adjusting column to the connecting disc is larger than the distance from the mounting disc to the connecting disc, and the adjusting column is used for pushing the cut valve into the support fan when the support fan contracts.
Further preferably, the folding component comprises a triggering block, the triggering block is slidably connected to the mounting plate, the triggering block is matched with the connecting plate, a pull rope is connected between the triggering block and the adjacent sliding block, the pull rope penetrates through the mounting plate, and a spring is fixedly connected between the sliding block and the mounting plate.
Further preferably, the distance between the positioning spike and the connecting disc in the horizontal direction is smaller than the distance between the trigger block and the connecting disc in the horizontal direction, and the positioning spike is used for flattening the valve.
The invention has the beneficial effects that: the invention adjusts the distance between annular equidistant cutters to make the diameter of the circle formed by the cutters equal to that of the part to be cut of the valve of the patient, and cuts the diseased valve along the periphery of the hole once by rotating the cutters, so that the shape of the rest valve periphery is regular and tidy, thereby facilitating the placement of the follow-up artificial valve.
The adjusting piece reversely pulls the torsion part and deforms the torsion part when the annular cutting elastic piece is unfolded to adjust the annular cutting diameter, and drives the adjacent cutters to swing, so that the cutters are always vertical to the lesion valve, and the cutting position of the lesion valve is smoother.
The lesion valve is supported by the expansion of the support fan, and the cut lesion valve is gathered and carried out when the support fan is folded, so that the operation steps are saved, and the operation efficiency is improved.
The pathological valve is fixed and stretched through the positioning pointed column, so that the pathological valve can be unfolded conveniently and the cutter can cut the pathological valve.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the adjusting column, the squeeze tube and the mounting plate of the present invention;
FIG. 3 is a schematic perspective view of the circular cutting spring and the support fan of the present invention when being unfolded;
FIG. 4 is a schematic perspective view of a transmission ring, a ring cutting spring and a cutter according to the present invention;
FIG. 5 is a schematic perspective view of the adjusting guide tube, adjusting column and second guide slot of the present invention;
FIG. 6 is a schematic perspective view of the positioning catheter, the connecting disc and the support post of the present invention;
FIG. 7 is a schematic perspective view of a support column, a support fan and a positioning block according to the present invention;
FIG. 8 is a schematic perspective view of the crush can, retaining ring and mounting plate of the present invention;
fig. 9 is a schematic perspective view of the mounting plate, slider and locating spike of the present invention.
The marks in the drawings are: the device comprises an a-aligning component, a b-supporting mechanism, a c-fixing mechanism, a d-gathering component, a 1-adjustable bent sheath tube, a 2-transmission catheter, a 3-transmission ring, a 4-circular cutting spring piece, a 401-outward expansion part, a 402-torsion part, a 5-cutter, a 6-reinforcing folding rod, a 7-adjusting catheter, a 701-first guide groove, an 8-adjusting column, a 801-second guide groove, a 9-adjusting piece, a 10-positioning catheter, a 11-connecting disc, a 12-supporting column, a 13-transmission column, a 14-supporting fan, a 15-gathering folding rod, a 16-positioning block, a 17-extrusion cylinder, a 18-fixing ring, a 19-mounting disc, a 20-sliding block, a 21-positioning pointed column, a 22-triggering block and a 23-pulling rope.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are exemplary and intended to illustrate the invention and not to be construed as limiting the invention, and in the following the proximal refers to the side closer to the operator, the distal refers to the side farther from the operator, the proximal refers to the end closer to the operator, and the distal refers to the end farther from the operator.
Example 1: 1-4, including adjustable curved sheath 1, adjustable curved sheath 1 establishes the intervention passageway from outside the patient's body to inside the body through cooperating with existing guiding device, then push the operation device into the diseased valve in the patient's body through the intervention passageway, the sliding connection has the transmission catheter 2 in adjustable curved sheath 1, transmission catheter 2 is the cylinder with the guide slot in the distal side, the distal sliding connection in transmission catheter 2 has the transmission ring 3, transmission ring 3 comprises ring and rectangular piece, the rectangular piece of transmission ring 3 is located the guide slot of transmission catheter 2 and slides, transmission ring 3 rigid coupling has annular equidistant circular cutting shell fragment 4, circular cutting shell fragment 4 is elastic material and is initially in the state of accumulating force, the distal end of circular cutting shell fragment 4 installs cutter 5, the distal end of cutter 5 is semicircular, and the semicircle department of cutter 5 is in the state of opening edge, the device is used for circumferentially cutting a lesion valve, a reinforcing folding rod 6 with equal distance and gradually increased length from near to far is fixedly connected between two adjacent annular cutting elastic sheets 4, the reinforcing folding rod 6 is made of elastic materials and is in an initial force storage state, the reinforcing folding rod 6 is used for reinforcing the strength of the annular cutting elastic sheets 4, when a cutter 5 cuts the lesion valve, the adjacent annular cutting elastic sheets 4 of the cutter 5 are twisted to cause uneven peripheries of cut valve, the placement of a subsequent artificial valve is influenced, an adjusting catheter 7 is rotationally connected to the near side of a transmission ring 3, the adjusting catheter 7 consists of a cylinder and two semicircular spheres, when one semicircular sphere moves to a groove of the transmission catheter 2, the other semicircular sphere is still positioned in a first guide groove 701, the normal movement of the adjusting catheter 7 is kept, a first guide groove 701 with threads is arranged in the transmission catheter 2, two semicircle spheres of the adjusting catheter 7 are in sliding connection with the transmission catheter 2 through the first guide groove 701, the transmission catheter 2 and the adjusting catheter 7 are connected with an external operating handle, medical staff control the transmission catheter 2 to push in, pull out and circumferentially rotate through the operating handle, control the adjusting catheter 7 to circumferentially rotate, the lesion valve is cut off once along the hole circumference through the annular equidistant cutter 5, the shape of the remaining valve circumference is regular and orderly, the placement of a follow-up artificial valve is convenient, and the transmission ring 3 is provided with an aligning component a for aligning the cutter 5.
As shown in fig. 4 and 5, the alignment assembly a comprises an adjusting column 8, the adjusting column 8 is connected with the transmission ring 3 through a spline, the adjusting column 8 is composed of a cylinder with a spline and a circular ring, an annular equidistant adjusting piece 9 is fixedly connected to the far side of the adjusting column 8, the adjusting piece 9 is fixedly connected with the far end of an adjacent circular cutting spring piece 4, the adjusting column 8 moves relative to the transmission ring 3, the adjusting piece 9 is pulled to deform the far end of the adjacent circular cutting spring piece 4, the purpose of adjusting the direction of a cutter 5 is achieved, a threaded second guide groove 801 is arranged at the far end in the adjusting guide pipe 7, the thread pitch of the second guide groove 801 is smaller than that of the first guide groove 701, the circular ring of the adjusting column 8 is connected with the adjusting guide pipe 7 through the thread, the relative movement of the adjusting column 8 and the transmission ring 3 is performed, the direction of the cutter 5 on the circular cutting spring piece 4 is adjusted while the circular cutting spring piece 4 is unfolded, the cutter 5 is kept in a vertical state with a diseased valve all the time, the circumference of the cut valve is more uniform, and the subsequent artificial valve is convenient to be placed.
As shown in fig. 4, the ring-cutting elastic sheet 4 is sequentially provided with an expanding portion 401 and a torsion portion 402 in a direction from the proximal end to the distal end, and the elastic modulus of the expanding portion 401 is greater than that of the torsion portion 402, so that when the adjusting member 9 pulls the ring-cutting elastic sheet 4, only the torsion portion 402 is deformed, the direction of the cutter 5 at the torsion portion 402 is changed, and the distal end of the adjusting member 9 is fixedly connected with the distal end of the adjacent torsion portion 402.
During operation, a medical staff selects a proper path and establishes an intervention channel from outside a patient to inside the body by using the guiding device and the adjustable curved sheath tube 1, when the adjustable curved sheath tube 1 is positioned above an aortic lesion valve, the medical staff withdraws the guiding device, then the medical staff pushes the transmission catheter 2 and parts therein into the aortic lesion valve through the adjustable curved sheath tube 1 by using the operating handle until the distal end of the transmission catheter 2 protrudes out of the adjustable curved sheath tube 1, then the medical staff controls the adjusting catheter 7 to rotate by using the operating handle, the adjusting catheter 7 rotates along the first guide groove 701 to push the transmission ring 3 to move towards the valve until the circular diameter formed by the circular cutting elastic sheet 4 and the reinforcing folding rod 6 gradually expands and drives the circular equidistant cutters 5 to increase when the circular diameter formed by the circular equidistant cutters 5 is equal to the inside diameter of the patient, and then the medical staff stops rotating the adjusting catheter 7.
When the adjusting catheter 7 rotates, the adjusting catheter 7 drives the second guide groove 801 to rotate, the first guide groove 701 rotates to drive the adjusting column 8 to move towards the proximal end of the transmission catheter 2 relative to the transmission ring 3, the adjusting column 8 pulls the adjusting piece 9 to move, the adjusting piece 9 pulls the adjacent torsion part 402 to deform, the distal end of the torsion part 402 drives the adjacent cutter 5 to swing, the cutter 5 swings to a position parallel to the inner wall of the aorta, then when a medical staff observes that the torsion part 402 contacts with the inner wall of the aorta, the rotating adjusting catheter 7 is stopped, and when the circular cutting spring piece 4 expands to adjust the circular cutting diameter, the adjusting piece 9 reversely pulls the torsion part 402 and deforms to drive the adjacent cutter 5 to swing, so that the position for cutting a diseased valve is flatter.
When the circular diameter formed by the cutters 5 is equal to the diameter of a part to be cut of a patient valve, medical staff pushes the cutters 5 to move towards the direction of the lesion valve through an operation handle until the cutters 5 are contacted with the lesion valve, the medical staff slowly pushes the cutters 5 and rotates the transmission catheter 2, the transmission catheter 2 drives the transmission ring 3 to rotate, the transmission ring 3 drives the cutters 5 to rotate through the circular cutting elastic pieces 4 to cut the lesion valve, after the lesion valve is cut, the medical staff controls the adjustment catheter 7 to rotate reversely, the adjustment catheter 7 rotates along the first guide groove 701 to drive the transmission ring 3 and parts on the transmission ring 3 to move towards the proximal end of the transmission catheter 2 together, the circular cutting elastic pieces 4 and the reinforcing folding rods 6 gradually enter the transmission catheter 2 and shrink again for resetting, the adjustment column 8 moves towards the distal end of the transmission catheter 2 and drives the adjacent torsion part 402 to reset through the adjustment piece 9 when the transmission ring 3 moves towards the proximal end of the transmission catheter 2, then the medical staff withdraws the transmission catheter 2 through the adjustable bending sheath 1, and then the medical staff pushes the heart extractor into the heart extractor through the adjustable bending sheath 1 and takes out the lesion valve through the heart extractor.
Example 2: on the basis of embodiment 1, as shown in fig. 2, 3, 6 and 7, the valve catheter further comprises a supporting mechanism b arranged on the transmission catheter 2, the supporting mechanism b is used for supporting a lesion valve to be cut, the supporting mechanism b comprises a positioning catheter 10, the positioning catheter 10 is arranged in the transmission catheter 2, a connecting disc 11 is fixedly connected to the distal end of the positioning catheter 10, an annular equidistant supporting column 12 is hinged to the connecting disc 11, a transmission column 13 is connected in the positioning catheter 10 in a sliding manner, the distal end of the transmission column 13 is smooth and hemispherical, the resistance of the transmission column 13 when passing through a valve closing line is reduced, the transmission column 13 is fixedly connected with an annular equidistant supporting fan 14, the position where the supporting fan 14 is fixedly connected with the transmission column 13 is made of an elastic material, when the supporting column 12 is unfolded adjacent to the supporting fan 14, the position where the supporting fan 14 is fixedly connected with the transmission column 13 is deformed, the supporting column 12 is hinged to the adjacent supporting fan 14, the positioning catheter 10 and the transmission column 13 are both connected with an external operation handle, a medical staff controls the positioning catheter 10 and the transmission column 13 to push in and pull out through the operation handle, the supporting fan 14 is used for supporting the periphery of the valve when the deployed supporting fan 5 to cut the lesion valve, and the lesion valve is conveniently removed after the lesion valve is cut through the deployed supporting fan.
As shown in fig. 3 and 6, two adjacent support columns 12 are fixedly connected with gathering and folding rods 15 with equal distance and gradually increased length from far to near, the gathering and folding rods 15 are made of elastic materials, the gathering and folding rods 15 are used for enhancing the strength between the two adjacent support columns 12 and simultaneously preventing a lesion valve from falling into a patient, an elastic membrane is connected between the adjacent support fans 14, an umbrella-like shape is formed after the support fans 14 are unfolded, and calcified layers on the lesion valve are prevented from falling into the patient when the support fans 14 are folded.
As shown in fig. 6 and 7, the proximal side of the support fan 14 is fixedly connected with a positioning block 16, the side surface of the positioning block 16 is provided with equidistant grooves for increasing the friction force to the valve, and one side of the positioning block 16, which is far away from the positioning catheter 10 and is close to the adjacent support fan 14, is not provided with grooves for reducing the friction force between the side surface grooves of the positioning block 16 and the valve when the support fan 14 passes through the valve.
When a medical staff pushes the transmission catheter 2 into the adjustable curved sheath tube 1, the medical staff wears the positioning catheter 10 on the adjusting column 8, when the medical staff pushes the transmission catheter 2, the positioning catheter 10 and the transmission column 13 to move along the adjustable curved sheath tube 1 distally together through the operating handle, the positioning catheter 10 and the transmission column 13 drive all parts on the transmission catheter to move along the distal end of the adjustable curved sheath tube 1 together, when the supporting fan 14 protrudes out of the distal end of the adjustable curved sheath tube 1, the medical staff continues to push the positioning catheter 10 and the transmission column 13, the distance between the supporting fan 14 and a lesion valve is gradually reduced, and finally the supporting fan 14 moves to the distal side of the lesion valve through the lesion valve closing line, in the process, the supporting fan 14 contacts with the lesion valve and generates friction, the medical staff can feel the resistance increase when pushing the positioning catheter 10 and the transmission column 13, when the medical staff feel that the resistance force pushing the positioning catheter 10 and the transmission column 13 is reduced, the supporting fan 14 is located at the far side of the medical staff passing through the lesion valve closing line, at the moment, the medical staff stops pushing the positioning catheter 10 and the transmission column 13, controls the positioning catheter 10 to move towards the near end of the transmission catheter 2 relative to the transmission column 13 through the operation handle, the positioning catheter 10 drives the annular equidistant supporting columns 12 to swing and expand through the connecting disc 11, the supporting columns 12 push the adjacent supporting fan 14 and the gathering and folding rod 15 to expand, when the medical staff feel that the resistance force pulling the positioning catheter 10 is increased, the positioning block 16 is in contact with the inner wall of the aorta, at the moment, the medical staff controls the positioning catheter 10 and the transmission column 13 to move towards the near end of the transmission catheter 2 together through the operation handle, the positioning catheter 10 and the transmission column 13 drive the supporting fan 14 and the positioning block 16 to move towards the far side of the lesion valve, stopping when the medical staff feel that the resistance of pulling the positioning catheter 10 and the transmission column 13 is increased, then repeating the steps to unfold the annular cutting spring plate 4 and cut the diseased valve, wherein in the cutting process, the circular diameter of the circular equidistant cutter 5 is smaller than that of the circular equidistant positioning block 16, the distal side of the diseased valve is supported by the positioning block 16, and the situation that the diseased valve is deformed when the cutter 5 cuts the diseased valve is prevented, so that the cutting surface is uneven is avoided.
The groove on the outer side of the positioning block 16 is not in contact with the diseased valve when the support fan 14 passes through the diseased valve closing line, and then the groove on the outer side of the positioning block 16 is in contact with the inner wall of the aorta and the aortic annulus to support the diseased valve after the support fan 14 is unfolded.
After the medical staff controls the cutter 5 to cut the diseased valve, the medical staff controls the positioning catheter 10 to move towards the far end of the transmission column 13 through the operating handle and controls the adjusting catheter 7 to rotate reversely, so that the supporting fan 14 and the circular cutting spring plate 4 shrink simultaneously, the diseased valve is gathered in the supporting fan 14, until the supporting fan 14 and the circular cutting spring plate 4 are reset, the medical staff pulls the transmission catheter 2, the positioning catheter 10 and the transmission column 13 towards the near end of the adjustable curved sheath tube 1 together until the supporting fan 14 protrudes out of the near end of the adjustable curved sheath tube 1, and at the moment, the medical staff controls the supporting fan 14 to expand to take out the diseased valve.
Example 3: on the basis of embodiment 2, as shown in fig. 2, fig. 3, fig. 8 and fig. 9, the valve cutting device further comprises a fixing mechanism c arranged on the adjusting column 8, the fixing mechanism c is used for fixing a valve to be cut, the fixing mechanism c comprises a squeezing barrel 17, the squeezing barrel 17 is slidably connected in the cylinder and the circular ring of the adjusting column 8, a spring is fixedly connected between the squeezing barrel 17 and the far side of the adjusting column 8, the distance that the adjusting column 8 moves towards the connecting disk 11 is greater than the distance that the mounting disk 19 moves towards the connecting disk 11, the valve to be cut is pushed into the supporting fan 14 when the supporting fan 14 contracts, the valve to be cut is prevented from falling off, a fixing ring 18 is fixedly connected to the far side of the positioning catheter 10 and is slidably connected with a mounting disk 19, the squeezing barrel 17 is matched with the mounting disk 19, when the circular elastic sheet 4 moves towards the diseased valve for cutting, the squeezing barrel 17 pushes the mounting disk 19 to enable the positioning pointed pillar 21 to be contacted and fixed with the diseased valve first, the situation is prevented from being twisted when the cutting knife 5 rotates to cause uneven circumference of the rest valve after cutting, a tension spring is fixedly connected between the mounting disk 19 and the fixing ring 18, a tension spring is used for fixing the pointed end 19 and the positioning disk 20 is used for fixing the cut, the pointed end of the positioning disk 20 is slidably connected with the circular disk 20, and the tip end 20 is slidably connected with the circular cylindrical pillar 20 at the tip end of the positioning disk, and the tip end 20 is slidably connected with the positioning disk, and the tip end 20 is arranged at the end of the positioning disk.
As shown in fig. 9, the folding component d comprises a triggering block 22, the triggering block 22 is composed of a circular ring and square columns with baffles, the number of the square columns above the triggering block 22 is the same as that of the sliding blocks 20, the square columns of the triggering block 22 are slidably connected in the mounting plate 19, the disc of the triggering block 22 is located at the far side of the mounting plate 19, the triggering block 22 is matched with the connecting plate 11, when the triggering block 22 moves along with the mounting plate 19, the triggering block 22 is contacted with a diseased valve and is extruded by the connecting plate 11 behind the valve, the triggering block 22 stops moving, a pull rope 23 is connected between the square columns of the triggering block 22 and the adjacent sliding blocks 20, the pull rope 23 penetrates through the mounting plate 19, a spring is fixedly connected between the sliding blocks 20 and the mounting plate 19 and is used for compressing the spring between the sliding blocks 20 and the mounting plate 19 when the triggering block 22 pulls the sliding blocks 20 to move towards the middle of the mounting plate 19, and then drives the adjacent sliding blocks 20 to reset, the distance between the positioning pointed column 21 and the connecting plate 11 in the horizontal direction is smaller than the distance between the triggering block 22 and the connecting plate 11, so that the positioning pointed column 21 is contacted with the valve firstly and then fixed with the valve and then the valve 11 is extruded by the connecting plate 11, the positioning pointed column 21 is contacted with the diseased valve and the diseased valve is pulled towards the middle part and the diseased valve is convenient to be stretched, and the diseased valve is arranged by the middle.
When a medical staff pushes the transmission catheter 2 and the positioning catheter 10 into the adjustable curved sheath tube 1 together, the transmission catheter 2 drives the adjusting column 8 and all parts on the adjusting column to move, the positioning catheter 10 drives all parts on the adjusting column to move until the supporting fan 14 stretches out of the distal end of the adjustable curved sheath tube 1 and passes through a lesion valve closing line, the mounting disc 19 and all parts on the mounting disc are positioned near the lesion valve until the supporting fan 14 is unfolded, when the medical staff drives the transmission ring 3 to move towards the distal end of the transmission catheter 2 by rotating the adjusting catheter 7, the transmission ring 3 drives the adjusting column 8 to move, the adjusting column 8 drives the extrusion cylinder 17 to move through a spring, the extrusion cylinder 17 drives the mounting disc 19 and all parts on the mounting disc 19 to move and stretches a tension spring between the mounting disc 19 and the fixing ring 18, the mounting disc 19 drives the positioning column 21 to move, the positioning needle 21 gradually contacts the lesion valve and the tip on the positioning needle penetrates into the lesion valve to fix the lesion valve, when the positioning pointed column 21 is in contact with the calcified layer on the lesion valve, the calcified layer pushes the positioning pointed column 21 to move away from the lesion valve relative to the mounting plate 19 and compresses a spring between the positioning pointed column 21 and the mounting plate 19, the mounting plate 19 drives the trigger block 22 to gradually contact with the lesion valve along with the continued movement of the mounting plate 19, the connecting plate 11 on the far side of the lesion valve pushes the trigger block 22 to move away from the lesion valve, the trigger block 22 pulls the adjacent sliding block 20 towards the middle part of the mounting plate 19 through the pull rope 23 and compresses the spring between the mounting plate 19 and the sliding block 20, after the trigger block 22 pulls the sliding block 20 to the innermost side of the mounting plate 19, the mounting plate 19 stops moving, the adjusting column 8 moves to compress the spring between the adjusting column and the pressing cylinder 17, the lesion valve is fixed and stretched through the positioning pointed column 21, the cutter 5 is convenient for cutting the diseased valve.
After a medical staff resects a lesion valve by using a cutter 5, the medical staff controls the supporting fan 14 and the annular cutting elastic sheet 4 to retract together through an operating handle, the annular cutting elastic sheet 4 and the supporting fan 14 retract, simultaneously, the mounting disc 19 is pushed to move towards a direction close to the supporting fan 14 under the action of the reset action of a spring between the adjusting column 8 and the extrusion barrel 17, the positioning pointed column 21 on the mounting disc 19 drives the cut lesion valve to move towards the inside of the supporting fan 14, the supporting fan 14 is convenient to fold the lesion valve, after the spring between the adjusting column 8 and the extrusion barrel 17 is reset, the mounting disc 19 is reset under the action of a tension spring between the adjusting column 8 and the fixing ring 18, the positioning pointed column 21 is reset under the action of the spring between the positioning pointed column and the adjacent sliding block 20, the triggering block 22 gradually moves along with the valve losing contact, the sliding block 20 resets under the action of the spring between the triggering block 22 and the mounting disc 19, and drives the triggering block 22 to reset through the adjacent pulling rope 23 until the supporting fan 14 and the annular cutting elastic sheet 4 are reset, the medical staff takes out the supporting fan 14 and the annular cutting elastic sheet 4 together through the adjustable sheath tube 1, and then the medical staff stretches the lesion valve 14.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An arterial lesion valve cutting device with supporting and positioning functions is characterized in that: the adjustable bending sheath tube (1) is connected with a transmission catheter (2) in a sliding mode, the transmission catheter (2) is connected with a transmission ring (3) in a sliding mode, annular equidistant annular cutting spring pieces (4) are fixedly connected to the transmission ring (3), a cutter (5) is installed at one end, far away from the transmission ring (3), of each annular cutting spring piece (4), equidistant reinforcing folding rods (6) are fixedly connected between the adjacent annular cutting spring pieces (4), an adjusting catheter (7) is connected to one side, far away from the annular cutting spring pieces (4), of each transmission ring (3), a first guide groove (701) is arranged in the transmission catheter (2), the adjusting catheter (7) is connected with the transmission catheter (2) in a sliding mode through the first guide groove (701), the transmission catheter (2) and the adjusting catheter (7) are connected with an external operation handle, and an alignment assembly (a) for aligning the cutter (5) is arranged on the transmission ring (3).
The adjusting component (a) comprises an adjusting column (8), the adjusting column (8) is in spline connection with the transmission ring (3), an adjusting piece (9) with annular equidistant is fixedly connected to one side of the adjusting column (8) close to the annular equidistant ring-cutting elastic piece (4), the adjusting piece (9) is fixedly connected with the adjacent ring-cutting elastic piece (4), a second guide groove (801) is formed in one side of the adjusting guide pipe (7) close to the adjusting column (8), and the adjusting column (8) is in threaded connection with the adjusting guide pipe (7) through the second guide groove (801);
the circular cutting elastic sheet (4) is sequentially provided with an outer expansion part (401) and a torsion part (402) from the transmission ring (3) to the direction adjacent to the cutter (5), the elastic modulus of the outer expansion part (401) is larger than that of the torsion part (402), and one end, away from the adjusting column (8), of the adjusting piece (9) is fixedly connected with one side, adjacent to the torsion part (402), close to the adjacent cutter (5).
2. An arterial lesion valve cutting device with support positioning function according to claim 1, wherein: the valve cutting device is characterized by further comprising a supporting mechanism (b) arranged on the conveying guide pipe (2), the supporting mechanism (b) is used for supporting a valve to be cut, the supporting mechanism (b) comprises a positioning guide pipe (10), the positioning guide pipe (10) is arranged in the conveying guide pipe (2), the positioning guide pipe (10) is far away from one end of the conveying guide pipe (2) and fixedly connected with a connecting disc (11), the connecting disc (11) is hinged with a supporting column (12) with annular equidistance, a driving column (13) is connected in the sliding manner in the positioning guide pipe (10), the driving column (13) is fixedly connected with a supporting fan (14) with annular equidistance, the supporting column (12) is hinged with the adjacent supporting fan (14), and the positioning guide pipe (10) and the driving column (13) are connected with an external operation handle.
3. An arterial lesion valve cutting device with support positioning function according to claim 2, wherein: equidistant gathering and folding rods (15) are fixedly connected between the adjacent support columns (12), elastic films are connected between the adjacent support fans (14), and the elastic films and the gathering and folding rods (15) are used for preventing cut valves from falling.
4. An arterial lesion valve cutting device with support positioning function according to claim 3, wherein: one side of the supporting fan (14) close to the transmission catheter (2) is fixedly connected with a positioning block (16), the positioning block (16) is provided with equidistant grooves, and the grooves of the positioning block (16) are used for increasing friction force to the valve.
5. An arterial lesion valve cutting device with support positioning function according to claim 2, wherein: the valve cutting device is characterized by further comprising a fixing mechanism (c) arranged on the adjusting column (8), wherein the fixing mechanism (c) is used for fixing a valve to be cut, the fixing mechanism (c) comprises an extrusion barrel (17), the extrusion barrel (17) is slidably connected with the adjusting column (8), a fixing ring (18) is fixedly connected to one side of the positioning guide pipe (10) close to the supporting fan (14) and is slidably connected with a mounting disc (19), the extrusion barrel (17) is matched with the mounting disc (19), a tension spring is fixedly connected between the mounting disc (19) and the fixing ring (18), a sliding block (20) with annular equidistance is slidably connected to the mounting disc (19), a positioning pointed column (21) is slidably connected to one side, away from the extrusion barrel (17), of the sliding block (20), a spring is fixedly connected between the positioning pointed column (21) and the adjacent sliding block (20), and the mounting disc (19) is provided with a gathering component (d) for tightening the valve to be cut.
6. An arterial lesion valve cutting device with support positioning function according to claim 5, wherein: a spring is fixedly connected between the extrusion cylinder (17) and the adjusting column (8), the moving distance of the adjusting column (8) to the connecting disc (11) is larger than the moving distance of the mounting disc (19) to the connecting disc (11), and the adjusting column is used for pushing the cut valve into the supporting fan (14) when the supporting fan (14) is contracted.
7. An arterial lesion valve cutting device with support positioning function according to claim 5, wherein: the folding assembly (d) comprises a triggering block (22), the triggering block (22) is slidably connected to the mounting plate (19), the triggering block (22) is matched with the connecting plate (11), a pull rope (23) is connected between the triggering block (22) and the adjacent sliding block (20), the pull rope (23) penetrates through the mounting plate (19), and a spring is fixedly connected between the sliding block (20) and the mounting plate (19).
8. An arterial lesion valve cutting device with support positioning function according to claim 7, wherein: the distance between the locating pointed column (21) and the connecting disc (11) in the horizontal direction is smaller than the distance between the trigger block (22) and the connecting disc (11) in the horizontal direction, and the locating pointed column is used for flattening a valve.
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| CN202410059470.9A CN117562630B (en) | 2024-01-16 | 2024-01-16 | Arterial lesion valve cutting device with supporting and positioning functions |
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| CN202410059470.9A CN117562630B (en) | 2024-01-16 | 2024-01-16 | Arterial lesion valve cutting device with supporting and positioning functions |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205163150U (en) * | 2015-11-17 | 2016-04-20 | 江苏孜航精密五金有限公司 | Disposable anus intestines cutting anastomat |
| CN113116468A (en) * | 2019-12-30 | 2021-07-16 | 杭州德晋医疗科技有限公司 | Valve tissue cutting device and valve clamp recovery system |
| CN113384324A (en) * | 2021-06-30 | 2021-09-14 | 宁波华科润生物科技有限公司 | Deflectable planing tool bit |
| CN215384442U (en) * | 2020-12-24 | 2022-01-04 | 杭州德晋医疗科技有限公司 | Valve cutter |
| WO2023023866A1 (en) * | 2021-08-27 | 2023-03-02 | Light Matter Interaction Inc. | Systems, apparatus and methods for forming incisions in tissue using laser pulses |
| CN116407220A (en) * | 2021-12-31 | 2023-07-11 | 杭州诺纳生物医疗科技有限公司 | Valve treatment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9682180B2 (en) * | 2009-11-15 | 2017-06-20 | Thoratec Corporation | Attachment system, device and method |
-
2024
- 2024-01-16 CN CN202410059470.9A patent/CN117562630B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205163150U (en) * | 2015-11-17 | 2016-04-20 | 江苏孜航精密五金有限公司 | Disposable anus intestines cutting anastomat |
| CN113116468A (en) * | 2019-12-30 | 2021-07-16 | 杭州德晋医疗科技有限公司 | Valve tissue cutting device and valve clamp recovery system |
| CN215384442U (en) * | 2020-12-24 | 2022-01-04 | 杭州德晋医疗科技有限公司 | Valve cutter |
| CN113384324A (en) * | 2021-06-30 | 2021-09-14 | 宁波华科润生物科技有限公司 | Deflectable planing tool bit |
| WO2023023866A1 (en) * | 2021-08-27 | 2023-03-02 | Light Matter Interaction Inc. | Systems, apparatus and methods for forming incisions in tissue using laser pulses |
| CN116407220A (en) * | 2021-12-31 | 2023-07-11 | 杭州诺纳生物医疗科技有限公司 | Valve treatment device |
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| CN117562630A (en) | 2024-02-20 |
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