CN113303903B - Holmium laser thrombus reducing mechanism of full cover extraction - Google Patents
Holmium laser thrombus reducing mechanism of full cover extraction Download PDFInfo
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- CN113303903B CN113303903B CN202010121458.8A CN202010121458A CN113303903B CN 113303903 B CN113303903 B CN 113303903B CN 202010121458 A CN202010121458 A CN 202010121458A CN 113303903 B CN113303903 B CN 113303903B
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 73
- 229910052689 Holmium Inorganic materials 0.000 title claims abstract description 50
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000000605 extraction Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 title abstract description 3
- 239000013307 optical fiber Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 210000004204 blood vessel Anatomy 0.000 description 10
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B18/24—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter
- A61B18/245—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter for removing obstructions in blood vessels or calculi
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B18/26—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00404—Blood vessels other than those in or around the heart
- A61B2018/0041—Removal of thrombosis
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Abstract
The invention discloses a holmium laser thrombus smashing device capable of fully covering and extracting, which comprises a tube sheath, a guide wire and a catheter, wherein the guide wire and the catheter are sleeved at the front end of the tube sheath, the tube sheath is arranged in a tube sheath fixer, an optical fiber is arranged along the central axis of the catheter, one end of the optical fiber extends out of the catheter and is provided with a laser head, the other end of the optical fiber is connected with a holmium laser instrument at the tube sheath fixer, at least one conveying pipe is arranged on the periphery of the optical fiber, one end of the conveying pipe extends out of the catheter, and the other end of the conveying pipe is connected with a multifunctional fluid program-controlled instrument at the tube sheath fixer. Above-mentioned holmium laser thrombus reducing mechanism of full cover extraction utilizes holmium laser instrument laser to smash thrombus earlier, and the vacuum extraction thrombus of the multi-functional fluid program control appearance of reuse smashes effectually, and the extraction is effectual, has ensured the conveyability of support, has improved the success rate of operation.
Description
Technical Field
The invention relates to the technical field of intelligent medical treatment, in particular to a holmium laser thrombus smashing device capable of fully covering and extracting.
Background
The holmium laser thrombus smashing device capable of fully covering and extracting is applied to the fields of vascular stent transmission, targeted therapy, angiography, vascular repair technology and the like, and aims to clear blood vessels and suck thrombus out of the blood vessels in a vacuum extraction mode so as to guarantee the delivery of the stent.
The plaque that occludes the vessel is often irregular, many with severe calcification, making it difficult for the stent to pass through the vascular lesion, so the deliverability of the stent is one of the keys to the success of the procedure. Thrombosis causes vascular occlusion, blood flow obstruction, ischemia, hypoxia and even necrosis of relevant vascular control tissues, and symptoms of dysfunction of corresponding tissues and organs are generated. However, in the process of clearing thrombus, the larger the diameter of a blood vessel blocked by thrombus is, the worse the treatment effect is, the blood vessel recanalization rate is low, the time for recanalization is long, and if the thrombus is directly extracted in vacuum, the clearing effect is poor.
Therefore, how to provide a holmium laser thrombus smashing device which can clear thrombus through vacuum extraction after smashing thrombus by utilizing holmium laser, has good smashing effect and good extraction effect, ensures the conveyability of a bracket and improves the success rate of operation, and is a technical problem to be solved by the people in the art.
Disclosure of Invention
The invention aims to provide a holmium laser thrombus smashing device for full-coverage extraction, which comprises the steps of smashing thrombus by utilizing holmium laser, and then carrying out vacuum extraction on the thrombus by utilizing a multifunctional fluid program control instrument.
In order to achieve the above purpose, the invention provides a holmium laser thrombus smashing device capable of fully covering and extracting, which comprises a tube sheath, a guide wire and a catheter, wherein the guide wire and the catheter are sleeved at the front end of the tube sheath, the tube sheath is arranged in a tube sheath fixer, an optical fiber is arranged along the central axis of the catheter, one end of the optical fiber extends out of the catheter and is provided with a laser head, the other end of the optical fiber is connected with a holmium laser instrument at the position of the tube sheath fixer, at least one conveying pipe is arranged on the periphery of the optical fiber, one end of the conveying pipe extends out of the catheter, and the other end of the conveying pipe is connected with a multifunctional fluid program-controlled instrument at the position of the tube sheath fixer.
Preferably, the number of the conveying pipes is three, and the included angle of the three conveying pipes is 120 degrees.
Preferably, the three conveying pipes are equidistant from the laser heads.
Preferably, the distances between the three conveying pipes and the laser head are reduced in steps or increased in steps.
Preferably, the multifunctional fluid programmer includes a plurality of positive pressure channels and a plurality of negative pressure channels in communication with the delivery tube for infusion and withdrawal.
Preferably, the pressure regulating range of the positive pressure channel is 10 mbar-1000 bar, the pressure regulating range of the negative pressure channel is-10 mbar-0.5 bar, and the liquid flow range is 0-80 ml/min.
Preferably, the rear end of the tube sheath is fixedly connected with the connecting shaft coaxially through the connecting valve.
Preferably, the rear end of the connecting shaft is fixedly connected with the rotating shaft coaxially, and the rotating shaft is fixedly positioned on the upper side of the base through the shaft sleeve and the balls.
Preferably, a catheter handle and a guide wire handle which respectively correspond to the catheter and the guide wire are arranged in the connecting valve, and the connecting valve is connected with the control computer through a first PLC.
Preferably, the holmium laser instrument is connected with the control computer, and the servo motor for driving the connecting shaft to move is connected with the control computer through a second PLC.
Compared with the background art, the holmium laser thrombus smashing device for full-coverage extraction comprises a tube sheath, the tube sheath is arranged in a tube sheath fixer, a guide wire and a catheter are arranged at the front end of the tube sheath, an optical fiber is arranged along the central axis of the catheter, a laser head is arranged at one end of the optical fiber extending out of the catheter, the optical fiber is arranged at the other end of the tube sheath fixer and connected with the holmium laser instrument, at least one conveying pipe is arranged on the periphery of the optical fiber in an extending mode and extends in the same direction as the optical fiber, one end of the conveying pipe extends out of the catheter, the other end of the conveying pipe is connected with a multifunctional fluid program-controlled instrument at the tube sheath fixer, the full-coverage extracted holmium laser thrombus smashing device is used for fixing the tube sheath through the tube sheath fixer, a guide wire and the catheter enter a vascular exploring path through the guide wire, the catheter accommodates conveying effect of the conveying pipe and the optical fiber, the holmium laser instrument is fixed at the periphery of the optical fiber, the holmium laser instrument generates holmium laser to be transmitted to the laser head, laser smashing of thrombus is realized through the laser head, the multifunctional fluid program-controlled instrument sucks thrombus from the conveying pipe into a blood vessel, the thrombus can be extracted through the multifunctional fluid program-controlled instrument, the thrombus smashing device can be directly arranged in a large scale after the thrombus smashing device is arranged on the catheter, and the thrombus smashing device can be used for the thrombus smashing effect can be adjusted in a large scale, and can be better than the thrombus can be extracted by the vacuum channel can be simultaneously pumped by the catheter.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a holmium laser thrombus crushing device for full coverage extraction provided by an embodiment of the invention;
Fig. 2 is a schematic view of the application effect of the holmium laser thrombus crushing device of fig. 1;
fig. 3 is a schematic structural diagram of a conveying pipe according to an embodiment of the present invention when three conveying pipes are provided;
fig. 4 is a schematic structural diagram of two conveying pipes according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a structure of a conveying pipe according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a structure of a conveying pipe according to an embodiment of the present invention when the conveying pipes are equidistantly arranged;
fig. 7 is a schematic structural diagram of a conveying pipe according to an embodiment of the present invention when the conveying pipe is set to a step distance;
fig. 8 is a schematic structural diagram of a multifunctional fluid program control instrument according to an embodiment of the present invention.
Wherein:
1-guide wire, 2-laser head, 3-telescopic tube, 4-optical fiber, 5-catheter, 6-sheath, 7-sheath holder, 8-catheter handle, 9-guide wire handle, 10-connecting shaft, 11-shaft sleeve, 12-ball, 13-base, 14-rotating shaft, 15-rotating seat, 16-servo motor, 17-connecting valve, 18-multifunctional fluid program controller, 19-conveying tube, 20-second PLC, 21-first PLC, 22-holmium laser instrument, 23-CT scanner, 24-control computer, 25-thrombus, 26-blood vessel.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present invention.
Referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of a holmium laser thrombus pulverizing device for full-coverage extraction according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of an application effect of the holmium laser thrombus pulverizing device for full-coverage extraction according to an embodiment of the present invention, fig. 3 is a schematic structural diagram of a three-stage conveying pipe according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of a two-stage conveying pipe according to an embodiment of the present invention, fig. 5 is a schematic structural diagram of a one-stage conveying pipe according to an embodiment of the present invention, fig. 6 is a schematic structural diagram of a equidistant conveying pipe according to an embodiment of the present invention, and fig. 7 is a schematic structural diagram of a multi-functional fluid program control instrument according to an embodiment of the present invention.
In a first specific embodiment, the holmium laser thrombus smashing device for full-coverage extraction provided by the invention comprises a guide wire 1, a guide tube 5, a tube sheath 6 and a tube sheath fixer 7, wherein the tube sheath 6 is arranged in the tube sheath fixer 7, the guide wire 1 and the guide tube 5 are sleeved by the tube sheath 6 and are sleeved at the front end of the tube sheath 6, the guide wire 1 is positioned in the guide tube 5, an optical fiber 4 and at least one conveying tube 19 which are arranged in the extending direction of the axial length of the guide tube 5 are also arranged in the guide tube 5, the optical fiber 4 is positioned in the center of the guide tube 5, namely the center shaft, the conveying tube 19 and the guide wire 1 are both positioned on the periphery of the optical fiber 4, the conveying tube 19 is fixed with the guide tube 5, the guide wire 1 is separated singly, the end part of the optical fiber 4 extending out of the guide tube 5 is provided with a laser head 2, the tube sheath fixer 7 is externally provided with a holmium laser instrument 22 and a multifunctional fluid instrument 18, the optical fiber 4 is positioned at the tube sheath fixer 7 and is connected with the holmium laser instrument 22, the conveying tube 19 is positioned at the tube sheath fixer 7 and is connected with the multifunctional fluid instrument 18, and the multifunctional fluid instrument 18 has a vacuum programmed channel for realizing vacuum program control effect.
It should be noted that the present invention is not limited to the specific number of the conveying pipes 19, the specific number of the conveying pipes 19 may be arranged according to actual needs, and the plurality of conveying pipes 19 are all connected with the multifunctional fluid programmable controller 18 to provide a better vacuum extraction effect.
The guide wire 1, the guide tube 5 and the tube sheath 6 belong to the prior art, and are not described in detail here, the holmium laser instrument 22 is used for generating holmium laser and transmitting the holmium laser through the optical fiber 4 and then transmitting the holmium laser at the laser head 2, and the laser head 2 is the tail end of the optical fiber 4; the function of the multifunctional fluid programmer 18 is to create a vacuum environment and provide vacuum suction through the delivery tube 19 at the extended end of the delivery tube 19, either to directly vacuum the smaller thrombus 25 or to vacuum the larger thrombus 25 after laser comminution.
Specifically, before cleaning the thrombus 25, the guide wire 1 moves the exploratory path in the blood vessel 26, and the guide wire 1 provides navigation of accurate positioning; when the thrombus 25 is cleaned, the catheter 5 moves to the thrombus 25, and if the thrombus 25 or plaque is smaller, the multifunctional fluid program control instrument 18 can directly vacuum the thrombus 25 or plaque in the blood vessel 26; if the thrombus 25 or plaque is larger, for example, when the diameter of the thrombus 25 or plaque is larger than the pipe diameter of the conveying pipe 19 or when the patient body is not suitable for adopting a large amount of thrombolytic drugs, the laser of the thrombus 25 or plaque is crushed by holmium laser, and then the crushed and reduced thrombus 25 or plaque is extracted in vacuum by the multifunctional fluid program-controlled instrument 18, so that the thrombus 25 is cleaned.
The holmium laser is pulse laser with the wavelength of 2.1 mu m, the pulse time of the pulse laser is 0.25ms, the damage to surrounding normal tissues is small, the postoperative response is light, the wound healing is quick, and the scar is small; illustratively, the holmium laser 22 operates at a laser output wavelength of 2100nm, an output power of 0-90W, preferably 15-30W, a pulse energy of preferably 1.5-2.5J, and a pulse repetition frequency of preferably 20-30Hz. In this embodiment, the diameter of the optical fiber 4 is 50-1000 μm; the diameter of the optical fiber 4 is 200 mu m, and the optical fiber has the characteristic of excellent flexibility, can largely follow the bending of the soft catheter 5, and is matched with an energy feedback closed-loop control system, so that the output energy is accurate, stable and safe; the holmium laser in the embodiment can be transmitted by the optical fiber 4 and can be combined with various inner catheters, guide wires 1 or puncture needles; the laser operation has no interference to various monitoring instruments in the operation, and requires lasers with different wavelengths for different operations of different tissues.
Specifically, the energy generated by the holmium laser can evaporate water between the tip of the optical fiber 4, i.e., the laser head 2 and the thrombus 25, form minute cavitation bubbles, and transfer the energy to the thrombus 25 or plaque, so that the thrombus 25 or plaque is pulverized into powder. The pulse time of holmium laser is 0.25ms, which is far less than the heat conduction time of 1ms of the tissue, so the heat damage to the surrounding tissue is very small, the penetration depth of the tissue is less than 0.38mm, the rest heat damage depth can be controlled to be 0.5-1.0mm, the coagulation and necrosis of the tissue are limited to 3-4mm, the blood absorbs a large amount of energy, and the damage to the blood vessel 26 can be reduced.
In a specific embodiment, the number of the conveying pipes 19 is three, the included angle of the three conveying pipes 19 is 120 °, and of course, the conveying pipes 19 can also be arranged in other numbers, such as one to eight or more, according to requirements; when the three delivery pipes 19 are arranged in a triangle, the thrombus 25 is sucked in a full coverage manner.
In addition to this, the distance between the conveying pipe 19 and the laser head 2 may be set according to the requirements and CT detection results. In the embodiment, the three conveying pipes 19 and the laser head 2 can be arranged in the same distance, so that the thrombus 25 has the strongest suction effect in the same section; likewise, the three conveying pipes 19 and the laser head 2 may be arranged in a stepwise decreasing or stepwise increasing manner, the stepwise distance is to prevent the missing thrombus 25, and on this basis, the pressure of the conveying pipes 19 may be adjusted, and the pressure of the conveying pipes 19 may be different or the same.
In this embodiment, the multifunctional fluid programmer 18 not only has a vacuum pumping function, but also has the function of delivering targeted drugs and ultrasound contrast agents through the liquid input port.
Specifically, the multifunctional fluid programmable controller 18 is an FC-PVL multifunctional fluid programmable controller, and has eight channels, namely six positive pressure channels and two negative pressure channels, and the conveying pipe 19 is connected with the programmable controller as required, so that the functions of transfusion and vacuum suction can be simultaneously achieved under the condition of permission.
In addition, the pressure regulating range of the positive pressure channel is 10 mbar-1000 bar, the pressure regulating range of the negative pressure channel is-10 mbar-0.5 bar, and the liquid flow range is 0-80 ml/min.
In other words, the holmium laser thrombus crushing device for full-coverage extraction provided by the invention comprises a laser crushing mode suitable for cleaning larger thrombus 25 or plaque, and a thrombus 25 dissolving mode suitable for cleaning larger thrombus 25 or plaque, and only needs to send thrombolytic drugs into a blood vessel 26 by a delivery tube 19 under the action of a program-controlled instrument to dissolve the thrombus 25, wherein the thrombolytic drugs have the effect of dissolving the thrombus 25, so that the injury to a human body is extremely large, a laser crushing mode is adopted for patients not suitable for the thrombolytic drugs, the thrombus 25 can not be completely dissolved by the thrombolytic drugs for patients suitable for the thrombolytic drugs, and the thrombus 25 can be sucked back by adopting a vacuum suction mode after being released as much as possible.
In a specific embodiment, the rear end of the tube sheath 6 is provided with a connecting shaft 10, the tube sheath 6 and the connecting shaft 10 are coaxially and fixedly connected through a connecting valve 17, that is, the tube sheath 6 coaxially and fixedly connected moves synchronously with the connecting shaft 10, including linear movement along the shaft and rotation movement around the shaft, and the connecting shaft 10 moves by driving the tube sheath 6 to drive the catheter 5 and the guide wire 1.
Illustratively, the rear end of the connecting shaft 10 is provided with a rotating shaft 14, the connecting shaft 10 is fixedly connected with the rotating shaft 14 coaxially, the connecting shaft 10 can be sleeved in the rotating shaft 14 for fixation, and the rotating shaft 14 is fixedly positioned on the upper side of the base 13 through the shaft sleeve 11 and the balls 12. The shaft sleeve 11 plays a role in supporting and positioning the rotating shaft 14, and the ball 12 plays a role in lubricating, supporting and positioning the rotating shaft 14.
In this embodiment, the front end of the rotary shaft 14 is fixedly connected with the connecting shaft 10 coaxially, the rear end of the rotary shaft 14 is in threaded connection with the rotary seat 15, that is, a part of the shaft structure is added, the connecting shaft 10 can be regarded as an extension part of the front end of the rotary shaft 14, the surface of the part of the connecting shaft 10 connected with the connecting valve 17 is smooth, the surface of the part of the rear end of the rotary shaft 14 connected with the rotary seat 15 is provided with threads, and the axial conveying distance and accuracy are prolonged through the connecting shaft 10 while the structural strength and stability are improved.
Specifically, the rear end of the rotary shaft 14 is sleeved in the rotary seat 15, the rear end of the rotary shaft 14 is a threaded rod with external threads on the outer side surface, the rotary seat 15 is provided with a moving cavity sleeved on the threaded rod, the inner side surface of the moving cavity is provided with internal threads, and the rotary shaft 14 rotates and moves back and forth in the rotary seat 15.
Illustratively, the rotating seat 15 is connected with the servo motor 16 and is driven by the servo motor 16 to rotate, and the rotating seat 15 further drives the rotating shaft 14 to realize linear motion along the shaft and rotation motion around the shaft, so as to finally realize pushing-in, pulling-back and twisting operation in the forward and reverse directions of the catheter 5 and the guide wire 1. The connection and driving modes of the rotating seat 15 and the servo motor 16 are various; alternatively, when a belt transmission connection mode is adopted, the rotary seat 15 is connected with the servo motor 16 through a transmission belt; when the gear transmission connection mode is adopted, the rotary seat 15 is connected with the servo motor 16 through a transmission gear; the rotary base 15 may also be directly fixed to the output shaft of the servo motor 16, which falls within the scope of the present embodiment.
In a specific embodiment, the catheter handle 8 and the guide wire handle 9 corresponding to the catheter 5 and the guide wire 1, respectively, are provided in the connection valve 17, and the connection valve 17 is connected to the control computer 24 through the first PLC 21. Wherein, the catheter handle 8 and the guide wire handle 9 respectively correspond to the locking catheter 5 and the guide wire 1, so that the synchronous movement of the catheter 5 and/or the guide wire 1 after being locked with the connecting shaft 10 is realized.
In addition, the CT scanner 23 is connected with a control computer 24; the sheath fixer 7 is connected with a control computer 24 through a holmium laser instrument 22; similarly, the servo motor 16 for driving the movement of the connecting shaft 10 is connected to the control computer 24 via the second PLC 20.
In the implementation process of the holmium laser thrombus smashing device for full-coverage extraction in the embodiment, a tube sheath 6 is connected with a connecting shaft 10 through a connecting valve 17, data scanned by a CT scanner 23 is transmitted to a control computer 24, after the control computer 24 gives an instruction, a second PLC20 designs a route, a servo motor 16 rotates forwards and backwards to achieve four operation combinations of pushing and pulling in and twisting in the forward and backward directions of a catheter 5 and a guide wire 1, and the catheter 5 and the guide wire 1 are guided to a target position. The first PLC21 controls the catheter handle 8 and/or the guide wire handle 9 in the connecting valve 17, so that the catheter 5 and/or the guide wire 1 and the connecting shaft 10 are locked and then synchronously move, after reaching a target position, the multifunctional fluid programmable controller 18 starts to start normally, the liquid input port can perform drip input, targeted drug input or contrast agent input, better image data can be obtained through the input of the conveying pipe 19, and the liquid is output from the front end of the guide wire port. When the image data is a small thrombus 25 or plaque, the telescopic part of the catheter 5, namely the telescopic pipe 3, is telescopic, and the multifunctional fluid program control instrument 18 directly sucks the thrombus 25 or plaque in the blood vessel 26 in vacuum; when the image data is larger thrombus 25 or plaque, the telescopic part of the catheter 5, namely the telescopic pipe 3, is telescopic, on one hand, a large amount of thrombolytic drugs are injected into the multifunctional fluid program control instrument 18, on the other hand, a vacuum channel is opened, and the thrombus 25 and the plaque are absorbed strongly; when the diameter of the thrombus 25 or zebra block is larger than the pipe diameter of the conveying pipe 19 or the body of a patient is not suitable for adopting a large amount of thrombolytic drugs, the holmium laser instrument 22 is started to crush the thrombus 25 and the plaque, and the multifunctional fluid program control instrument 18 is started to strongly absorb the thrombus 25 and the plaque.
The holmium laser thrombus crushing device for full coverage extraction provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (4)
1. The holmium laser thrombus smashing device capable of fully covering and extracting comprises a tube sheath (6), and a guide wire (1) and a guide tube (5) which are sleeved at the front end of the tube sheath (6), and is characterized in that the tube sheath (6) is arranged in a tube sheath fixing device (7), an optical fiber (4) is arranged along the central axis of the guide tube (5), one end of the optical fiber (4) extends out of the guide tube (5) and is provided with a laser head (2), the other end of the optical fiber (4) is connected with a holmium laser instrument (22) at the position of the tube sheath fixing device (7), at least one conveying tube (19) is arranged on the periphery of the optical fiber (4), one end of the conveying tube (19) extends out of the guide tube (5), and the other end of the conveying tube (19) is connected with a multifunctional fluid program-controlled instrument (18) at the position of the tube sheath fixing device (7).
The number of the conveying pipes (19) is three, and the included angle of the three conveying pipes (19) is 120 degrees;
The multifunctional fluid program control instrument (18) comprises a plurality of positive pressure channels and a plurality of negative pressure channels which are communicated with the conveying pipe (19) to realize transfusion and extraction;
The rear end of the tube sheath (6) is coaxially and fixedly connected with the connecting shaft (10) through a connecting valve (17);
the rear end of the connecting shaft (10) is fixedly connected with a rotating shaft (14) in a coaxial way, and the rotating shaft (14) is fixedly positioned on the upper side of the base (13) through a shaft sleeve (11) and a ball (12);
the connecting valve (17) is internally provided with a catheter handle (8) and a guide wire handle (9) which respectively correspond to the catheter (5) and the guide wire (1), and the connecting valve (17) is connected with a control computer (24) through a first PLC (21);
The holmium laser instrument (22) is connected with the control computer (24), and the servo motor (16) used for driving the connecting shaft (10) to move is connected with the control computer (24) through the second PLC (20).
2. Holmium laser thrombi pulverizing device with full coverage extraction according to claim 1, characterized in that three said delivery pipes (19) are equidistant from said laser head (2).
3. Holmium laser thrombi smashing device with full coverage extraction according to claim 2, characterized in that the distance between three conveying pipes (19) and the laser head (2) is reduced or increased in steps.
4. The holmium laser thrombus smashing device for full-coverage extraction according to claim 1, wherein the pressure regulating range of the positive pressure channel is 10 mbar-1000 bar, the pressure regulating range of the negative pressure channel is-10 mbar-0.5 bar, and the liquid flow range is 0-80 ml/min.
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