CN214285075U - High-efficient remove device of vascular calcification tissue - Google Patents

Abstract

The utility model relates to a high-efficiency removing device for calcified vascular tissues, which comprises an ellipsoidal removing grinding wheel and an elastic filter screen arranged at the front side of the removing grinding wheel, wherein the removing grinding wheel and the elastic filter screen are driven to rotate by a power mechanism, the power mechanism comprises a transmission shaft, and the front end of the transmission shaft is fixedly connected with the middle part of the removing grinding wheel; the elastic filter screen is a cylindrical structure with an opening at the rear end, a guide wire is fixedly penetrated through the middle part of the elastic filter screen, the rear end of the guide wire is fixedly connected with the middle part of the removal grinding wheel, and the elastic filter screen is opened into a conical shape with a small front end and a large rear end under the action of centrifugal force when the guide wire rotates; the removal grinding wheel comprises a cutting part, a grinding part and a smooth part which are arranged in sequence from front to back. Two cutting modes are distributed on the front half part of the grinding wheel, so that the efficiency of removing calcified tissues is improved; meanwhile, the elastic filter screen is additionally arranged on the guide wire, and the elastic filter screen is expanded by centrifugal force during working to intercept oversized abrasive dust, so that the abrasive dust is prevented from blocking capillary vessels.

Description

High-efficient remove device of vascular calcification tissue

The technical field is as follows:

the utility model belongs to the technical field of the vascular calcification tissue gets rid of, especially, relate to a high-efficient remove device of vascular calcification tissue.

Background art:

calcified tissue is a substance harmful to human body due to deposition of fat, thrombus, connective tissue and calcium carbonate on the inner wall of an arterial blood vessel, and the generation of the calcified tissue can cause the inner cavity of the blood vessel to be narrow, blood flow to be not smooth, even the blood vessel can be blocked in serious cases, and large-area bleeding caused by artery rupture is caused, so that the calcified tissue needs to be removed.

In the prior art, the device for removing calcified tissues has the defects of low removal efficiency and overlong removal time, and meanwhile, the heat generated in the removal process is more, so that the heat damage of tissues around the removed part can be caused. Moreover, the oversized abrasive dust can cause blockage of blood vessels to cause other surgical complications, and the prior art does not consider the problem of recovery of the oversized abrasive dust.

The utility model has the following contents:

the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a high-efficient remove device of vascular calcification tissue is provided, not only reasonable in design, improvement removal efficiency, the convenient abrasive dust to the excision is collected moreover.

In order to realize the purpose, the utility model discloses a technical scheme is: a high-efficiency vascular calcified tissue removing device comprises a removing grinding wheel and an elastic filter screen coaxially arranged on the front side of the removing grinding wheel, wherein the removing grinding wheel and the elastic filter screen are driven to rotate by a power mechanism, and the removing grinding wheel comprises a cutting part, a grinding part and a smooth part which are sequentially arranged from front to back; the elastic filter screen is of a cylindrical structure with an opening at the rear end.

Further, the power mechanism comprises a transmission shaft which is coaxial with the removal grinding wheel, and the front end of the transmission shaft is fixedly connected with the middle part of the removal grinding wheel; the middle part of the elastic filter screen is fixedly penetrated with a guide wire, and the rear end of the guide wire is fixedly connected with the middle part of the removal grinding wheel.

Furthermore, the power mechanism further comprises a high-pressure gas tank and an air turbine, the high-pressure gas tank is connected with the air turbine through a high-pressure pipe, and the air turbine is fixedly connected with the transmission shaft so as to drive the transmission shaft to rotate.

Furthermore, the cutting part comprises a plurality of cutting edges which are uniformly distributed in the circumferential direction around the axis of the removal grinding wheel, the cutting edges are arc-shaped with arc openings facing the axis of the removal grinding wheel, the front ends of the cutting edges are fixed together, and the rear ends of the cutting edges are respectively fixedly connected with the front end face of the grinding part.

Furthermore, the grinding part and the smooth part are both of a revolving body structure, and diamond abrasive grains are embedded on the outer peripheral surface of the grinding part.

Further, the removal grinding wheel is in an ellipsoid shape; the elastic filter screen is expanded into a conical shape with a small front end diameter and a large rear end diameter under the action of centrifugal force when the guide wire rotates.

Compared with the prior art, the utility model discloses following effect has: the utility model has reasonable design, and improves the efficiency of removing calcified tissues by distributing two cutting modes on the front half part of the grinding wheel; meanwhile, the elastic filter screen is additionally arranged on the guide wire, and the elastic filter screen is expanded by centrifugal force during working to intercept oversized abrasive dust, so that the abrasive dust is prevented from blocking capillary vessels.

Description of the drawings:

fig. 1 is a schematic front view of the embodiment of the present invention;

FIG. 2 is a schematic view of the configuration of FIG. 1 with the elastic screen expanded;

FIG. 3 is a schematic diagram of the right side view of the embodiment of the present invention;

fig. 4 is a schematic side view of an elastic filter screen according to an embodiment of the present invention;

FIG. 5 is a schematic view of a cutting edge structure according to an embodiment of the present invention;

fig. 6 is a schematic diagram of the embodiment of the present invention in a state before operation;

fig. 7 is a schematic diagram of a state during operation according to an embodiment of the present invention.

In the figure:

1-removing the grinding wheel; 2-an elastic filter screen; 201-mesh; 3, driving a shaft; 4-guide wire; 5-a cutting part; 6-grinding part; 7-smooth part; 8-a cutting edge; 9-diamond abrasive grains; 10-vascular calcified tissue; 11-abrasive dust.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1 to 7, the utility model relates to a high-efficient removing device for calcified vascular tissues, which comprises an ellipsoidal removing grinding wheel 1 and an elastic filter screen 2 coaxially arranged at the front side of the removing grinding wheel 1, wherein the removing grinding wheel 1 and the elastic filter screen 2 are driven by a power mechanism to rotate, the power mechanism comprises a transmission shaft 3 coaxially arranged with the removing grinding wheel 1, and the front end of the transmission shaft 3 is fixedly connected with the middle part of the removing grinding wheel 1; the elastic filter screen 2 is of a cylindrical structure with an opening at the rear end, a guide wire 4 is fixedly penetrated through the middle part of the elastic filter screen 2, the rear end of the guide wire 4 is fixedly connected with the middle part of the grinding wheel 1, and the elastic filter screen 2 is opened into a conical shape with a small front end diameter and a large rear end diameter under the action of centrifugal force when the guide wire 4 rotates; the removal grinding wheel 1 includes a cutting portion 5, a grinding portion 6, and a smoothing portion 7, which are arranged in this order from front to back. Two cutting modes are distributed on the front half part of the grinding wheel, so that the efficiency of removing calcified tissues is improved; meanwhile, the elastic filter screen is additionally arranged on the guide wire, and the elastic filter screen is expanded by centrifugal force during working to intercept oversized abrasive dust, so that the abrasive dust is prevented from blocking capillary vessels.

In this embodiment, the power mechanism further includes a high-pressure gas tank and an air turbine (neither the high-pressure gas nor the air turbine is shown in the figure), the high-pressure gas tank is connected to the air turbine through a high-pressure pipe, and the air turbine is fixedly connected to the transmission shaft. The gas in the high-pressure gas tank drives an air turbine in the propeller to convert the power of the high-pressure gas into the rotation of the transmission shaft, so that the rotation of the grinding wheel is driven to be removed.

In this embodiment, the grinding part 6 and the smooth part 7 are both of a revolving body structure; the cutting part 5 comprises four cutting edges 8 which are circumferentially and uniformly distributed around the axis of the removal grinding wheel 1, the cutting edges 8 are arc-shaped with arc mouths facing the axis of the removal grinding wheel, the front ends of the four cutting edges 8 are intersected and fixed together, the rear ends of the four cutting edges 8 are respectively welded and fixed with the front end face of the grinding part 6, and the four cutting edges 8 cut calcified tissues to improve the removal efficiency. In order to prevent the cutting edge from damaging the inner wall of the blood vessel, the outer peripheral surface of the grinding part 6 is embedded with diamond abrasive grains 9, and grinding is performed by using the diamond abrasive grains, so that the calcified tissue removing process is changed from cutting to grinding, the cutting force is reduced, and the inner wall of the blood vessel is protected. Preferably, the diamond abrasive grains are in a minute shape.

In this embodiment, the elastic filter screen 2 is made of a material with good elasticity, and before the removing device reaches the calcified tissue, the elastic filter screen 2 is in a closed state (a convergent state) as shown in fig. 1, i.e., does not participate in the work, and at the moment, the cross-sectional area of the elastic filter screen is small, and can deform when being squeezed by an external force, so that the whole removing device can smoothly pass through a narrow blood vessel to reach an affected part without causing damage to the blood vessel; when the elastic filter screen is in a closed state, the diameter of the elastic filter screen is slightly smaller than the length of the short shaft of the removal grinding wheel, so that the elastic filter screen 2 and the removal grinding wheel 1 can smoothly reach the working position. When the removal grinding wheel 1 starts to work, namely, the removal grinding wheel starts to rotate under the action of the power mechanism, the elastic filter screen 2 is opened under the action of larger centrifugal force when rotating along with the guide wire, so that the elastic filter screen is opened to be umbrella-shaped, as shown in figure 2, abrasive dust cut off by the removal grinding wheel 1 is collected through an opening at the rear end of the elastic filter screen 2, blockage caused by the larger abrasive dust flowing through capillary vessels is prevented, blood slow blood flow or no backflow is caused, and other surgical complications such as myocardial infarction, vasospasm and the like caused when the larger abrasive dust or thrombus enters organs such as heart, lung and the like can be avoided.

In this embodiment, the aperture of the side wall of the elastic filter screen 2 is set to the size of the largest red blood cell that the capillary vessel can pass through, so as to block the oversized abrasive dust and avoid blocking the capillary vessel to cause other operation complications.

The specific implementation process comprises the following steps: the removing device enters the artery blood vessel of a human body through femoral artery or radial artery nitre and moves to an affected part in the blood vessel, then the power mechanism drives the removing grinding wheel 1 to rotate through the transmission shaft 3, a cutting edge 8 at the front end of the removing grinding wheel 1 contacts with calcified tissues firstly, and the protruding part of the calcified tissues is removed quickly, so that the implementation of the subsequent stent implantation treatment and the entering of other surgical instruments are facilitated; then, the diamond particles 9 on the outer peripheral surface of the grinding part 6 slowly grind and remove the calcified tissues to make the surfaces of the calcified tissues smoother so as to carry out the subsequent stent implantation treatment. Before the remove device starts, elastic filter screen 2 is the state of convergence, and the cross-sectional area is little, can produce deformation when meetting external force extrusion, makes the device can reach the affected part through comparatively constrictive blood vessel smoothly and does not cause the injury to the blood vessel. In the removing process, the elastic filter screen 2 which is originally in a convergent state is opened under the action of centrifugal force when rotating along with the guide wire 4, and the removed abrasive dust is intercepted by the elastic filter screen 2, so that the phenomenon that the abrasive dust blocks capillary vessels to cause other operation complications is avoided.

The utility model has the advantages that: two cutting processes (cutting and grinding) are arranged on the removal grinding wheel, so that the removal efficiency can be improved, the removal speed is accelerated, and the situation that excessive heat is generated to cause thermal damage to tissues around the removal part is effectively avoided; meanwhile, the elastic filter screen which is opened by centrifugal force in the removing process is used for intercepting the micro abrasive dust generated by removing, so that the problem that other operation complications are caused by the fact that capillary vessels are blocked by the abrasive dust is effectively avoided.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (6)

1. A high-efficient remove device of vascular calcification tissue which characterized in that: the device comprises a removal grinding wheel and an elastic filter screen coaxially arranged on the front side of the removal grinding wheel, wherein the removal grinding wheel and the elastic filter screen are driven to rotate by a power mechanism, and the removal grinding wheel comprises a cutting part, a grinding part and a smooth part which are sequentially arranged from front to back; the elastic filter screen is of a cylindrical structure with an opening at the rear end.

2. The device for efficiently removing calcified vascular tissue as claimed in claim 1, wherein: the power mechanism comprises a transmission shaft which is coaxial with the grinding wheel removing device, and the front end of the transmission shaft is fixedly connected with the middle part of the grinding wheel removing device; the middle part of the elastic filter screen is fixedly penetrated with a guide wire, and the rear end of the guide wire is fixedly connected with the middle part of the removal grinding wheel.

3. The device for efficiently removing calcified vascular tissue as claimed in claim 2, wherein: the power mechanism further comprises a high-pressure gas tank and an air turbine, the high-pressure gas tank is connected with the air turbine through a high-pressure pipe, and the air turbine is fixedly connected with the transmission shaft so as to drive the transmission shaft to rotate.

4. The device for efficiently removing calcified vascular tissue as claimed in claim 1, wherein: the cutting part comprises a plurality of cutting edges which are uniformly distributed in a circumferential manner around the axis of the removal grinding wheel, the cutting edges are arc-shaped with arc mouths facing the axis of the removal grinding wheel, the front ends of the cutting edges are fixed together, and the rear ends of the cutting edges are respectively fixedly connected with the front end face of the grinding part.

5. The device for efficiently removing calcified vascular tissue as claimed in claim 1, wherein: the grinding part and the smooth part are both of a revolving body structure, and diamond abrasive grains are embedded on the peripheral surface of the grinding part.

6. The device for efficiently removing calcified vascular tissue as claimed in claim 2, wherein: the removal grinding wheel is in an ellipsoid shape; the elastic filter screen is expanded into a conical shape with a small front end diameter and a large rear end diameter under the action of centrifugal force when the guide wire rotates.

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