CN211862900U

CN211862900U - Full-automatic thrombus extraction device

Info

Publication number: CN211862900U
Application number: CN202020216242.5U
Authority: CN
Inventors: 张伯伦
Original assignee: Hunan Zaochen Nano Robot Co ltd
Current assignee: Hunan Zaochen Nano Robot Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-11-06
Anticipated expiration: 2030-02-26

Abstract

The utility model discloses a full-automatic thrombus draw-out device, establish including tube sheath and cover the seal wire and the pipe of tube sheath front end, the tube sheath is located in the tube sheath fixer, the tube sheath fixer be equipped with by conveyer pipe and support pipe that the pipe extends out, support pipe be equipped with be used for when the sacculus inflation with the thrombus with the conveyer pipe separation is at the vascular support with one side, the tube sheath fixer be equipped with the conveyer pipe intercommunication is used for extracting the vacuum tube device of thrombus. The stent catheter of the full-automatic thrombus extraction device crosses the thrombus and then the blood vessel stent is expanded and supported, thrombus and plaque are strongly recovered by the vacuum tube device, and the full-automatic thrombus extraction device is high in precision, small and flexible and free of limitation.

Description

Full-automatic thrombus extraction device

Technical Field

The utility model relates to an intelligent medical treatment technical field, in particular to full-automatic thrombus draw-out device.

Background

The full-automatic thrombus extraction device is applied to the fields of intravascular stent transmission, targeted therapy, angiography, vascular repair technology and the like, and aims to clean 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 only hope for relief of the pain of patients with coronary heart disease is coronary artery bypass surgery, which is one of the most complicated and expensive of surgical procedures, by inserting a catheter from a peripheral artery and delivering the stent from the catheter to the stenotic coronary artery. Due to the accumulation of friction, the stent and the delivery system thereof have a tendency of generally increasing along with the delivery distance, the delivery force slowly increases after entering the curved section of the blood vessel, and the force at the middle point of the arc section is depreciated and then reduced; the smaller the radius of the curve through which the stent and its delivery system pass, the greater the delivery force, and due to the viscosity of the blood itself, the delivery force also increases with the increase of the delivery speed; the delivery of stents is one of the key components in the success of the procedure because the atherosclerotic plaque that occludes the vessel is often irregular with many severe calcifications making it difficult to pass the stent through the diseased portion of the vessel. However, in the process of cleaning a thrombus, a thrombolytic drug needs to be injected to dissolve a large thrombus or plaque, and the thrombolytic drug has a problem of flow deviation in a blood vessel and cannot effectively act on a thrombus site.

Therefore, how to provide a full-automatic thrombus extraction device which can effectively realize targeted therapy and thrombus extraction, ensure the transportability of a stent and improve the success rate of a surgery is a technical problem which needs to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a full-automatic thrombus draw-out device, the support pipe crosses behind the thrombus blood vessel support inflation support, retrieves thrombus and plaque by the vacuum tube device is powerful, and the precision is high, and is small and exquisite nimble, does not have the limitation.

In order to achieve the above object, the utility model provides a full-automatic thrombus draw-out device, establish including tube sheath and cover the seal wire and the pipe of tube sheath front end, the tube sheath is located in the tube sheath fixer, the tube sheath fixer be equipped with by conveyer pipe and support pipe that the pipe extends out, support pipe be equipped with be used for when the sacculus inflation with the thrombus with the conveyer pipe separation is at the intravascular stent with one side, the tube sheath fixer be equipped with the conveyer pipe intercommunication is used for extracting the vacuum tube device of thrombus with.

Preferably, the sheath holder is further provided with a liquid input port communicating with the delivery tube and used for inputting drugs and/or contrast agents.

Preferably, the blood vessel stent is a memory titanium alloy stent adopting a balloon expansion mode.

Preferably, the blood vessel stent is a magnesium alloy stent adopting a balloon expansion mode.

Preferably, the sheath holder is further provided with a pressure sensor extending into the catheter, the number of the liquid input ports is two, the first liquid input port is used for drip infusion or targeted drug infusion, and the second liquid input port is used for contrast agent infusion.

Preferably, the rear end of the tube sheath is coaxially and fixedly connected with the connecting shaft through a connecting valve.

Preferably, the rear end of the connecting shaft is coaxially and fixedly connected with a rotating shaft, and the rotating shaft is positioned and fixed on the upper side of the base through a shaft sleeve and a ball.

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 a control computer through a first PLC.

Preferably, the sheath holder is connected to the control computer via a third PLC.

Preferably, the servo motor for driving the connecting shaft to move is connected with the control computer through a second PLC.

Compared with the prior art, the utility model provides a full-automatic thrombus extraction device includes the tube sheath, the tube sheath is located in the tube sheath fixer, seal wire and pipe are located the front end of tube sheath, be equipped with conveyer pipe and support pipe in the tube sheath fixer, conveyer pipe and support pipe extend in the pipe and set up and stretch out, the support pipe is equipped with the vascular support, the tube sheath fixer is equipped with vacuum tube device, vacuum tube device and conveyer pipe intercommunication, this full-automatic thrombus extraction device passes through the tube sheath fixer fixed tube sheath, through fixed seal wire of tube sheath and pipe, get into the vascular route of exploring through the seal wire, hold conveyer pipe and support pipe through the pipe and undertake the transport effect simultaneously, carry the vascular support through the support pipe, through the expansion of vascular support sacculus in order to realize with the thrombus with the conveyer pipe separation is in, through vacuum tube device balanced blood vessel, pipe and conveyer pipe between the same one side, and further provide vacuum condition and with the thrombus by conveyer pipe suction blood vessel through vacuum tube device, at the realization in-process, the support pipe crosses the thrombus, and the expansion of blood vessel support sacculus, blood vessel support are got up, and vacuum tube device opens, and the thrombus and the plaque of brute force extraction blood vessel support one side have realized the clearance of thrombus, have ensured the transportability of support, have improved the success rate of operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a full-automatic thrombus extraction device provided by an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating the application effect of the fully automatic thrombus extraction device in fig. 1.

Wherein:

1-guide wire, 2-telescopic tube, 3-guide tube, 4-tube sheath, 5-tube sheath fixer, 6-guide tube handle, 7-guide wire handle, 8-connecting shaft, 9-shaft sleeve, 10-ball, 11-base, 12-rotating shaft, 13-servo motor, 14-connecting valve, 15-vacuum tube device, 16-liquid input port, 17-pressure measuring sensor, 18-conveying tube, 19-second PLC, 20-first PLC, 21-third PLC, 22-CT scanner, 23-control computer, 24-thrombus, 25-blood vessel, 26-blood vessel support, 27-support guide tube and 28-rotating seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Please refer to fig. 1 and fig. 2, wherein fig. 1 is a schematic structural diagram of a full-automatic thrombus extraction device according to an embodiment of the present invention, and fig. 2 is a schematic application effect diagram of the full-automatic thrombus extraction device in fig. 1.

In the first concrete embodiment, the utility model provides a full-automatic thrombus extraction device includes seal wire 1, pipe 3, tube sheath 4 and tube sheath fixer 5, tube sheath 4 is located in tube sheath fixer 5, seal wire 1 and pipe 3 are established and establish the front end at tube sheath 4 by tube sheath 4 cover, be equipped with conveyer pipe 18 and support pipe 27 in tube sheath fixer 5, conveyer pipe 18 and support pipe 27 extend the setting in pipe 3 and stretch out from the front end of pipe 3, support pipe 27 is equipped with vascular support 26, tube sheath fixer 5 still is equipped with vacuum tube device 15, vacuum tube device 15 and conveyer pipe 18 intercommunication.

In the embodiment, before cleaning the thrombus 24, firstly, the guide wire 1 moves the approach in the blood vessel 25, and the guide wire 1 provides accurate positioning navigation; when clearing up thrombus 24, support pipe 27 crosses thrombus 24, thrombus 24 is located between vascular support 26 and conveyer pipe 18 this moment, vascular support 26 supports, the sacculus inflation, vascular support 26 separates thrombus 24 and conveyer pipe 18 in same one side, thrombus 24 is restricted between the export of vascular support 26 and conveyer pipe 18, start vacuum tube device 15, conveyer pipe 18 forms the vacuum suction to thrombus 24, vacuum suction is bigger, thrombus 24 is more easily siphoned out blood vessel 25 under the effect of vacuum suction, thrombus 24's location is accurate this moment, can be more comprehensive and the non-leakage draw thrombus 24 clean. In addition, the wires of the stent catheter 27 are disposed inside the stent catheter 27, and a stent is fixed to the outside of the stent catheter 27.

On the basis, the sheath fixer 5 is provided with a liquid input port 16 communicated with the delivery pipe 18, the liquid input port 16 is positioned in front of the vacuum pipe device 15, medicines and/or contrast agents can be input into the delivery pipe 18 through the liquid input port 16, the medicines comprise medicines matched with the cleaning of the thrombus 24, and better image data can be obtained through the input of the contrast agents.

Besides, the front end of the catheter 3 is provided with the telescopic tube 2, and the function of the telescopic tube 2 is that after the catheter 3 reaches the target position, the telescopic tube 2 is retracted to facilitate the operation of the delivery tube 18 and the blood vessel support 26 of the support catheter 27; the sheath holder 5 is further provided with a pressure sensor 17 extending into the catheter 3, the number of the fluid input ports 16 being two, the first fluid input port 16 being for drip infusion or targeted drug infusion and the second fluid input port 16 being for contrast agent infusion.

In the process, the pressure measuring sensor 17 feeds back a pressure value, the vacuum tube device 15 balances the air pressure among the blood vessel 25, the catheter 3 and the conveying tube 18, and the thrombus 24 is further sucked out of the blood vessel 25 and into the conveying tube 18 in a vacuum suction mode; in another application of the vacuum tube device 15, the rear vacuum tube device 15 can push the medicine forward by adjusting the air pressure during the medicine input process.

In this embodiment, the two fluid input ports 16 are used for injecting contrast agent and thrombolytic drug, respectively. Wherein, input contrast medium can cooperate CT scanner 22 better with the formation of image of the complicated condition in the blood vessel 25, vascular support 26 with thrombus 24 and conveyer pipe 18 separation in same one side, the thrombus dissolving medicine of input this moment can be comprehensive abundant be used in the thrombus 24 in the separation space, solved the thrombus dissolving medicine and had the problem of flowing off tracking in blood vessel 25, make thrombus 24 have better dissolving effect, thrombus 24 after dissolving the dispersion is absorbed away by conveyer pipe 18 vacuum more easily by vacuum tube device 15.

It should be noted that the direct vacuum extraction of the thrombus 24 is suitable for smaller thrombi 24, and the vacuum extraction of the thrombolytic drug dissolved the thrombus 24 is suitable for larger thrombi 24; the thrombus dissolving medicine has the function of dissolving the thrombus 24, and has great damage to a human body, so that the thrombus 24 cannot be completely dissolved by the thrombus dissolving medicine, the thrombus 24 is released and then sucked back by adopting a vacuum suction mode as much as possible, and the sealing property of the blood vessel support 26 is important.

In a specific embodiment, the blood vessel stent 26 is a memory titanium alloy stent adopting a balloon expansion mode, in other words, the blood vessel stent 26 in the embodiment adopts a balloon expansion mode, the blood vessel stent 26 adopts a memory titanium alloy material, after the thrombus 24 is cleaned, the balloon is deflated, and the blood vessel stent 26 automatically retracts and is fixed on the stent catheter 27.

In another specific embodiment, the blood vessel stent 26 is a magnesium alloy stent adopting a balloon expansion mode, in other words, the blood vessel stent 26 in this embodiment adopts a balloon expansion mode, the blood vessel stent 26 adopts a magnesium alloy material, after the thrombus 24 is cleaned, the balloon is deflated, the blood vessel stent 26 stays in the blood vessel 25, and the blood vessel stent can be automatically dissolved after three to six weeks.

Besides, the blood vessel stent 26 can adopt the principle of balloon inflation and deflation without a metal stent. The method has good effect in sealing blood vessel 25, prevents thrombolytic drug from running disorderly, and has minimal damage to blood vessel 25, but has no action on intractable plaque.

It should be noted that the intravascular stent 26 is currently classified into two types, i.e., a self-expanding type and a balloon expanding type, and the material is generally 316 stainless steel, cobalt-chromium alloy, nickel-titanium alloy, magnesium alloy, and the like. The scheme is different from the current scheme of the market, the current scheme of the market is to embed the blood vessel support 26 into the blood vessel 25 without taking out the blood vessel support, but the scheme only aims to take out the thrombus 24 by the acting force principle of the blood vessel support 26, and the blood vessel support 26 is not remained in the blood vessel 25.

In a specific embodiment, the rear end of the sheath 4 is provided with a connecting shaft 8, the sheath 4 and the connecting shaft 8 are coaxially and fixedly connected through a connecting valve 14, that is, the sheath 4 and the connecting shaft 8 which are coaxially and fixedly connected move synchronously, including a linear movement along the shaft and a rotational movement around the shaft, and the connecting shaft 8 drives the sheath 4 to move so as to drive the catheter 3 and the guide wire 1.

Illustratively, a rotating shaft 12 is arranged at the rear end of the connecting shaft 8, the connecting shaft 8 is coaxially and fixedly connected with the rotating shaft 12, the connecting shaft 8 can be sleeved in the rotating shaft 12 for fixation, and the rotating shaft 12 is positioned and fixed on the upper side of the base 11 through a shaft sleeve 9 and a ball 10. The shaft sleeve 9 supports and positions the rotating shaft 12, and the balls 10 lubricate, support and position the rotating shaft 12.

In this embodiment, the front end of the rotating shaft 12 is coaxially and fixedly connected with the connecting shaft 8, the rear end of the rotating shaft 12 is in threaded connection with the rotating base 28, that is, a part of shaft structure is added, the connecting shaft 8 can be regarded as an extension part of the front end of the rotating shaft 12, the surface of the part, connected with the connecting valve 14, of the connecting shaft 8 is smooth, the surface of the part, connected with the rotating base 28, of the rear end of the rotating shaft 12 is provided with threads, and the axial conveying distance and the accuracy are improved through the connecting shaft 8, and meanwhile, the structural strength and the stability are improved.

Specifically, the rear end of the rotating shaft 12 is sleeved in the rotating base 28, the rear end of the rotating shaft 12 is a threaded rod with an external thread on the outer surface, the rotating base 28 is provided with a moving cavity sleeved on the threaded rod, an internal thread is arranged on the inner surface of the moving cavity, and the rotating shaft 12 rotates and moves back and forth in the rotating base 28.

Illustratively, the rotary seat 28 is connected with the servo motor 13 and driven by the servo motor 13 to rotate, and the rotary seat 28 further drives the rotary shaft 12 to perform linear motion along the shaft and rotational motion around the shaft, so as to finally perform pushing, pulling back and twisting operations in both forward and reverse directions of the catheter 3 and the guide wire 1. Among them, the connection and driving mode of the rotary seat 28 and the servo motor 13 have many kinds; optionally, when a belt transmission connection mode is adopted, the rotating seat 28 is connected with the servo motor 13 through a transmission belt; when a gear transmission connection mode is adopted, the rotating seat 28 is connected with the servo motor 13 through a transmission gear; the rotary seat 28 can also be directly fixed on the output shaft of the servo motor 13, and shall fall within the scope of the present embodiment.

In one embodiment, the junction valve 14 has a catheter handle 6 and a guidewire handle 7 corresponding to the catheter 3 and guidewire 1, respectively, and the junction valve 14 is connected to the control computer 23 via a first PLC 20. The catheter handle 6 and the guide wire handle 7 respectively correspond to the locking catheter 3 and the guide wire 1, and synchronous movement of the catheter 3 and/or the guide wire 1 and the connecting shaft 8 after locking is achieved.

In addition, the CT scanner 22 is connected to a control computer 23; the sheath fixer 5 is connected with the control computer 23 through a third PLC 21; similarly, the servo motor 13 for driving the connecting shaft 8 to move is connected to the control computer 23 through the second PLC 19.

In the implementation process of the full-automatic thrombus extraction device, the tube sheath 4 is connected with the connecting shaft 8 through the connecting valve 14, the data scanned by the CT scanner 22 is transmitted to the control computer 23, after the control computer 23 issues instructions, the second PLC19 designs a route, the servo motor 13 rotates forward and backward to realize the four-position operation combination of pushing, pulling back and twisting in the forward and backward directions of the catheter 3 and the guide wire 1, and the catheter 3 and the guide wire 1 are guided to a target position. The first PLC20 controls the catheter handle 6 and/or the guide wire handle 7 in the connecting valve 14, so that the catheter 3 and/or the guide wire 1 and the connecting shaft 8 move synchronously after being locked, after the target part is reached, the third PLC21 starts to start normally, the pressure measuring sensor 17 feeds back a pressure value, the liquid input port 16 can carry out drip input, targeted drug input or contrast agent input, and the input can be carried out through the conveying pipe 18, and better image data can be obtained. When a negative pressure is present in the delivery tube 18, the vacuum tube arrangement 15 may be advanced or the thrombus 24 or plaque within the blood vessel 25 may be vacuumed out. Before vacuum suction, the stent catheter 27 crosses the thrombus 24 and then the vascular stent 26 is supported, the thrombus 24 is separated from the outlet of the conveying pipe 18 at the same side, the stent catheter 27 is reversely pulled back through the second PLC19, the vacuum pipe device 15 can be directly started and used for vacuum extraction of the thrombus 24 through the conveying pipe 18, thrombolytic drugs can be input before the liquid input port 16, the thrombolytic drugs can comprehensively and effectively act on the thrombus 24 in the space separated by the vascular stent 26, in order to avoid excessive injury of the thrombolytic drugs to a human body, the thrombus 24 is finally extracted through the conveying pipe 18 in a vacuum mode through the vacuum pipe device 15, and after extraction of the thrombus 24 is completed, the vascular stent 26 can be retracted into the stent catheter 27 or stays in the blood vessel 25 for three to six weeks to automatically dissolve.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

It is right above that the utility model provides a full-automatic thrombus draw-out device has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. Full-automatic thrombus draw-out device establishes including tube sheath (4) and cover guide wire (1) and pipe (3) of tube sheath (4) front end, its characterized in that, tube sheath (4) are located in tube sheath fixer (5), tube sheath fixer (5) be equipped with by conveyer pipe (18) and support pipe (27) that pipe (3) extend out, support pipe (27) are equipped with and are used for when the sacculus inflation with thrombus (24) with duct pipe (18) separation is at intravascular stent (26) with one side, tube sheath fixer (5) be equipped with conveyer pipe (18) intercommunication is used for extracting vacuum tube device (15) of thrombus (24).

2. A fully automatic thrombus extraction device according to claim 1, wherein the sheath holder (5) is further provided with a liquid input port (16) communicating with the delivery tube (18) and for inputting a drug and/or a contrast agent.

3. The fully automatic thrombus extraction device according to claim 1, wherein the blood vessel stent (26) is a memory titanium alloy stent by balloon expansion.

4. The fully automatic thrombus extraction device according to claim 1, wherein the blood vessel stent (26) is a magnesium alloy stent by balloon expansion.

5. The fully automatic thrombus extraction device according to claim 2, wherein the sheath holder (5) is further provided with a pressure sensor (17) extending into the catheter (3), the number of the liquid input ports (16) is two, a first one of the liquid input ports (16) is used for drip infusion or targeted drug infusion, and a second one of the liquid input ports (16) is used for contrast agent infusion.

6. The fully automatic thrombus extraction device according to any one of claims 1 to 5, wherein the rear end of the sheath (4) is coaxially and fixedly connected with the connection shaft (8) through a connection valve (14).

7. The fully automatic thrombus extraction device according to claim 6, wherein the rear end of the connecting shaft (8) is coaxially and fixedly connected with a rotating shaft (12), and the rotating shaft (12) is positioned and fixed on the upper side of the base (11) through a shaft sleeve (9) and a ball (10).

8. The fully automatic thrombus extraction device according to claim 7, wherein a catheter handle (6) and a guide wire handle (7) corresponding to the catheter (3) and the guide wire (1), respectively, are provided in the connection valve (14), and the connection valve (14) is connected to a control computer (23) through a first PLC (20).

9. The fully automatic thrombus extraction device according to claim 8, wherein the sheath holder (5) is connected to the control computer (23) by a third PLC (21).

10. The fully automatic thrombus extraction device according to claim 9, wherein a servo motor (13) for driving the connecting shaft (8) to move is connected to the control computer (23) through a second PLC (19).