CN213406212U - Rotary cutting device for dredging blood vessel blockage - Google Patents
Rotary cutting device for dredging blood vessel blockage Download PDFInfo
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- CN213406212U CN213406212U CN202022055509.XU CN202022055509U CN213406212U CN 213406212 U CN213406212 U CN 213406212U CN 202022055509 U CN202022055509 U CN 202022055509U CN 213406212 U CN213406212 U CN 213406212U
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- rotary cutter
- atherectomy device
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Abstract
The utility model discloses a rotary-cut device for dredging vascular blockage belongs to the medical instrument field, include: the rotary cutter is provided with a miniature camera in the middle; a conduit; a developer ring positioned within the conduit; the controller is used for controlling the starting or stopping of the rotary cutter; the catheter is provided with a rotary cutter placing area, and the rotary cutter placing area is at least provided with a clamping structure used for clamping the rotary cutter; the developing ring is positioned at one side close to the rotary cutter placing area. The utility model discloses a rotary-cut device observes the situation of intravascular situation and thrombus pathological change position through the miniature camera head that is located the rotary-cut ware middle part, rotary-cut formula excision is carried out to the thrombus to rotary-cut blade through rotary-cut ware to adsorb away clot and impurity through the pipe, ensured the security of operation, made things convenient for operator's use, whether the blood vessel after utilizing miniature camera head to observe the rotary-cut simultaneously is unobstructed completely, thereby improved the clearance efficiency and the cure rate of thrombus.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to rotary-cut device for dredging vascular blockage.
Background
At present, the known methods for treating vascular occlusion are mainly to restore the patency of blood vessels by antithrombotic drugs or artificial mechanical methods. The antithrombotic therapy is to use thrombolytic drugs to dissolve formed thrombus and then to use antiplatelet drugs and anticoagulants to prevent new thrombus from forming in arteries and veins, but the drugs may not achieve the expected therapeutic effect for patients with different conditions, and because the drug thrombolysis has certain limitations and is easy to cause more complications, we generally adopt an artificial mechanical method to treat patients.
The artificial mechanical method mainly adopts a balloon catheter to expand the blood vessel at the blocked part, so that the reduced inner diameter of the blood vessel is recovered to the inner diameter of a normal blood vessel or is a little smaller than the normal inner diameter, and according to different conditions of patients, a stent is placed in the blood vessel according to the different requirements, namely the inner diameter of the blood vessel at the pathological change part is expanded (continuously provides acting force for the blood vessel). However, due to the performance problem of the balloon catheter and the complexity of the blood vessel of the human body, the balloon catheter can cause unnecessary injury to the human body in the operation process, and has risks, so that the operation effect is not ideal, the healing is not thorough, and the situation of the reocclusion of the blood vessel is easy to occur.
Based on the above, there is a need to provide an additional solution to the technical problem, and it should be understood that the above information disclosed in the background is only for enhancing the understanding of the background of the present invention, and thus it may contain information that does not form the prior art that is known to those of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotary-cut device for dredging vascular blockage uses the technical problem who exists when adopting antithrombotic medicine or adopting the dredging of artifical mechanical method when solving current vascular blockage, tries to provide a profitable selection at least.
In order to achieve the above object, the utility model adopts the following technical scheme:
an atherectomy device for clearing occluded blood vessels, comprising:
the rotary cutter is provided with a miniature camera in the middle;
a catheter for delivering the atherectomy device to a vascular occlusion;
a developer ring positioned within the conduit; and
the controller is used for controlling the starting or stopping of the rotary cutter;
the catheter is provided with a rotary cutter placing area, and the rotary cutter placing area is at least provided with a clamping structure used for clamping the rotary cutter; the developing ring is positioned at one side close to the rotary cutter placing area.
The utility model discloses a rotary-cut device observes the situation of intravascular situation and thrombus pathological change position through the miniature camera head that is located the rotary-cut ware middle part, rotary-cut formula excision is carried out to the thrombus to rotary-cut blade through rotary-cut ware to adsorb away clot and impurity through the pipe, ensured the security of operation, made things convenient for operator's use, whether the blood vessel after utilizing miniature camera head to observe the rotary-cut simultaneously is unobstructed completely, thereby improved the clearance efficiency and the cure rate of thrombus.
In one embodiment disclosed herein, the rotary shaver includes: an inner component, an outer component; and an intermediate layer located between the inner component and the outer component;
the internal assembly is provided with a rotary cutting blade, and the miniature camera is arranged in the middle of the internal assembly;
the external component is provided with a micro motor for pushing the rotary cutting blade to rotate;
the inner assembly is arranged in the outer assembly in a telescopic mode through the middle layer.
In an embodiment of the disclosure, optionally, the inner assembly further includes an adsorption port, and the adsorption port is disposed between the micro camera head and the rotary-cut blade, and is used for adsorbing blood clots and impurities left after the rotary-cut.
In an embodiment of the disclosure, optionally, the suction ports are annularly distributed around the micro camera to form a layer of suction ring, and the rotary cutting blade is annularly distributed around the micro camera to form a layer of rotary cutting ring concentric with the suction ring.
In one embodiment of the disclosure, the suction ports and the rotary cutting blades are alternatively equal in number and are arranged in a staggered manner.
In one embodiment of the present disclosure, optionally, the retaining structure includes:
an annular table located inside the conduit and proximate to one end of the conduit;
a plurality of grippers in an annular array about the conduit centerline;
when the rotary cutter is moved to the rotary cutter placing area, the annular table and the plurality of clamping pieces respectively clamp the upper end and the lower end of the rotary cutter to limit the movement of the position of the rotary cutter.
In one embodiment of the present disclosure, optionally, the retainer has:
one end of the elastic connecting arm is connected with the inner wall of the conduit;
a holding arm located at the other end of the connecting arm;
wherein the end of the clamping arm is provided with a clamping part; the connecting arm extends towards the center of the catheter in an inclined shape at a preset included angle; the clamping arm is approximately parallel to the central line of the conduit and extends downwards from the end part of the connecting arm.
In one embodiment of the present disclosure, the atherectomy device optionally further comprises a guide wire for delivering the atherectomy device, the guide wire extending from one end of the catheter through the interior of the catheter to the other end of the catheter.
In one embodiment disclosed herein, optionally, the catheter further has a handle formed at one end of the catheter; the handle is provided with a guide wire port and an air outlet; the guide wire port is communicated with the catheter, and the center of the guide wire port is basically consistent with that of the catheter; the air outlet is formed in the side face of the handle and communicated with the conduit. Further, in this embodiment, the atherectomy device further comprises a guidewire for delivering the atherectomy device, the guidewire extending from the guidewire port through the interior of the catheter to the other end of the catheter.
The utility model discloses a concrete theory of operation as follows:
1. the rotary cutter enters a blood vessel of a human body through the guide wire and observes the condition in the blood vessel in real time by utilizing the miniature camera to obtain the pathological change position of thrombus;
2. preparing the rotary cutter, and controlling the operation of the rotary cutter through a controller in the handle;
3. after the operation is started, the internal component extends outwards, the rotary cutting blade rotates to carry out rotary cutting on thrombus at the pathological change position, the adsorption port adsorbs broken blood clots into the adsorption port, and the rotary cutting and the adsorption work simultaneously to ensure that the blood clots are completely adsorbed into the adsorption port and restore the smoothness of the blood vessel;
4. observing the condition in the blood vessel through the miniature camera, and finishing the operation of the rotary cutter after the blood vessel is completely unobstructed;
5. after the operation is finished, the rotary cutting device is ensured to stop working completely, foreign matters in the blood vessel are completely adsorbed into the rotary cutter without residue, the blood vessel is ensured to be completely unobstructed, and the rotary cutting device can be taken out.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the miniature camera head arranged in the middle of the rotary cutter can better observe the conditions in the blood vessel and the thrombus lesion position, the safety of the operation is guaranteed, the use of an operator is facilitated, and meanwhile, the miniature camera head is utilized to observe whether the blood vessel after rotary cutting is completely unobstructed or not, so that the thrombus removal efficiency and the cure rate are improved.
2. The adsorption port through the internal component can suck broken blood clots and impurities in time, observation of the miniature camera is facilitated, thrombus clearing efficiency and operation efficiency are improved, and the blood vessel is recovered to be unobstructed.
3. Through the mutual matching of the rotary cutting ring and the adsorption ring, the thrombus removing efficiency and the operation efficiency can be effectively improved, thereby improving the cure rate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings 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 some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of a rotary cutting surface structure of the middle rotary cutter of the present invention;
fig. 3 is the schematic view of the sectional structure of the middle clamping structure of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, the embodiment of the present application discloses a rotary-cut device for dredging a blood vessel blockage, which aims to solve the technical problems existing in the conventional blood vessel blockage dredging method by using an antithrombotic drug or an artificial mechanical method.
Example one
The rotary cutting device mainly comprises the following parts:
the rotary cutter 1 is provided with a miniature camera 11 in the middle;
a catheter 3 for delivering the atherectomy device 1 to a vascular occlusion;
a developing ring 2; located within said conduit 3; and
a controller (not shown) for controlling the starting or stopping of the rotary cutter 1;
the catheter 3 is provided with a rotary cutter placing area A, and the rotary cutter placing area A is at least provided with a clamping structure for clamping the rotary cutter 1; the developing ring 2 is located on a side close to the peeler placing area a.
The rotary cutting device disclosed in the embodiment of the application observes the conditions of the intravascular conditions and the pathological changes of thrombus through the miniature camera head 11 positioned in the middle of the rotary cutter 1, the rotary cutting blade of the rotary cutter 1 is used for rotary cutting type excision of thrombus, and the blood clot and impurities are adsorbed away through the catheter 3, so that the safety of the operation is ensured, the use of an operator is facilitated, and whether the blood vessel after rotary cutting is completely unobstructed is observed by utilizing the miniature camera head, so that the thrombus removal efficiency and the cure rate are improved.
Referring to fig. 2, in particular, the rotary shaver 1 is similar in overall appearance to a cylinder, and includes: inner assembly 13, outer assembly 15; and an intermediate layer 14 located between the inner component 13 and the outer component 15;
the inner component 13 is provided with a rotary cutting blade, and the miniature camera 11 is arranged in the middle of the inner component 13;
the external component 15 has a micro-motor (not shown) for driving the rotary cutting blade to rotate;
the inner assembly is telescopically disposed within the outer assembly 15 by the intermediate layer 14.
In this embodiment, the outer member 15 is a fixed part that is connected to the conduit 3 by a retaining structure on the conduit 3. The structural form of the retaining structure will be explained in detail in the following description. The inner member 13 is rotatable and extendable (in operation) relative to the outer member 15, and the power for its rotation is derived primarily from the micro-motor attached to the outer member 15. The power of the extension can come from a second micro motor, and the micro motor converts the rotary power into linear thrust through a worm and gear structure. The partial structure is applied more in the prior art, the telescopic principle of the digital camera lens can be referred to, and the specific structure is not further explained here.
As a preferred structure, the inner assembly 13 further includes an adsorption port 12, and the adsorption port 12 is disposed between the micro-camera 11 and the rotary-cut blade 130, and is used for adsorbing blood clots and impurities left after the rotary-cut. Through adsorbing mouthful 12, can suck broken clot and impurity in time away, be favorable to miniature camera 11's observation, improve the efficiency of cleaing away of thrombus and operation efficiency, resume the blood vessel unobstructed.
More specifically, the suction ports are annularly distributed around the micro-camera to form a layer of suction ring, and the rotary-cut blades 130 are annularly distributed around the micro-camera 11 to form a layer of rotary-cut ring concentric with the suction ring. Through the mutual matching of the rotary cutting ring and the adsorption ring, the thrombus removing efficiency and the operation efficiency can be effectively improved, thereby improving the cure rate.
In a further specific embodiment, the number of the adsorption openings is equal to that of the rotary cutting blades, and the adsorption openings and the rotary cutting blades are arranged in a staggered manner.
Referring to FIG. 3, FIG. 3 schematically illustrates one embodiment of a retaining structure, the retaining structure in this embodiment comprising:
an annular table 30 located inside the conduit 3 and close to one end of said conduit 3 (lower end in figure 3)
A plurality of retainers 31 in an annular array about the centre line of the conduit 3;
when the rotary cutter 1 is moved to the rotary cutter placing area a, the annular table 30 and the plurality of holding members 31 hold the upper and lower ends of the rotary cutter 1, respectively, to restrict the movement of the position thereof.
Specifically, the retaining member has:
an elastic connecting arm 31a, one end of the connecting arm 31a is connected to the inner wall of the conduit 3;
a catching arm 31b at the other end of the connecting arm 31 a;
wherein, the end of the catching arm 31b has a catching part 31 c; the connecting arm 31a extends obliquely toward the center of the catheter 3 at a predetermined angle (for example, 15 °); the catching arm 31b is substantially parallel to the center line of the guide duct 3, and extends downward from the end of the connecting arm 31 b.
The connecting arm 31a has a larger elastic coefficient than the retaining arm 31b, and when the rotary shaver 1 enters from the catheter 3 and falls into the rotary shaver placing area a, the rotary shaver 1 overcomes the elastic force of the connecting arm 31a by means of the gravity of the rotary shaver 1, and presses the connecting arm 31a to the inner wall of the catheter 3; when the rotary shaver 1 falls into the rotary shaver placing area a, the lower end of the rotary shaver 1 abuts against the annular table 30, and the upper end thereof is approximately located at the lower end of the retaining portion 31c, i.e., the rotary shaver placing area a just defines the space of the rotary shaver 1 itself.
Because the connecting arm 31a has elasticity, when the rotary shaver 1 falls into the rotary shaver placing area a, it is restored by its own elasticity, so that the holding portion 31c is substantially clamped at the upper end of the rotary shaver 1.
Specifically, when the rotary shaver 1 is operated, an upward pushing force is generated, that is, the rotary shaver 1 applies a pushing force to the connecting arm 31a and the retaining arm 31 b; in order to ensure that the atherectomy device 1 is stably positioned in the atherectomy device placement area a, the connecting arm 31a is preferably made of a material having unidirectional elasticity, i.e., the connecting arm 31a has a good tendency to press from the center of the catheter 3 toward the inner wall of the catheter 3 when being stressed, but has no tendency to expand from the inner wall of the catheter 3 toward the center of the catheter 3.
In the aforementioned embodiment, it is known that the atherectomy device 1 enters the atherectomy device placing region a mainly through the catheter 3, and in order to ensure that the atherectomy device 1 smoothly passes through the catheter 3 and reaches the atherectomy device placing region a, the atherectomy device of this embodiment may further include a guide wire (not shown) for delivering to the atherectomy device 1, the guide wire extending from one end of the catheter to the other end of the catheter through the inside of the catheter.
Example two
The rotary cutting device disclosed in this embodiment is basically similar to the structure in the first embodiment, and the same parts are not described again, and the following parts are mainly used:
the catheter 3 has a handle 4 formed at one end of the catheter 3;
the handle 4 is provided with a guide wire port 6 and an air outlet 5;
the guide wire port 6 is communicated with the catheter 3, and the center of the guide wire port 6 is basically consistent with that of the catheter 3; the air outlet 5 is arranged on the side surface of the handle 4 and communicated with the conduit 3.
Similarly, the atherectomy device of this embodiment may also be provided with a guidewire extending from the guidewire port 6 through the interior of the catheter 3 to the other end of the catheter 3.
According to the embodiment, during operation, the rotary cutter 1 enters a blood vessel of a human body through the guide wire and observes the condition in the blood vessel in real time by using the micro camera 11 to obtain the lesion position of thrombus, then the controller in the handle 4 controls the rotary cutter 1 to carry out rotary cutting on the thrombus at the lesion position, and finally the micro camera 11 is used for observing whether the rotary cut blood vessel is completely unobstructed or not, so that the thrombus removal efficiency and the cure rate are improved, and the safety of the operation is guaranteed.
In the foregoing, only certain exemplary embodiments have been described briefly. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "center," "longitudinal," "lateral," "length," "width," "thickness," "vertical," "horizontal," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings, or are the orientations and positional relationships conventionally found in use of the products of the present invention, or are the orientations and positional relationships conventionally understood by those skilled in the art, merely for convenience of description and to simplify the description, and are not intended to 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 invention.
The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described above. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.
Claims (10)
1. A rotary-cut device for dredging vascular occlusion, characterized by, include:
the rotary cutter is provided with a miniature camera in the middle;
a catheter for delivering the atherectomy device to a vascular occlusion;
a developer ring positioned within the conduit; and
the controller is used for controlling the starting or stopping of the rotary cutter;
the catheter is provided with a rotary cutter placing area, and the rotary cutter placing area is at least provided with a clamping structure used for clamping the rotary cutter; the developing ring is positioned at one side close to the rotary cutter placing area.
2. The atherectomy device of claim 1, wherein the atherectomy device comprises: an inner component, an outer component; and an intermediate layer located between the inner component and the outer component;
the internal assembly is provided with a rotary cutting blade, and the miniature camera is arranged in the middle of the internal assembly;
the external component is provided with a micro motor for pushing the rotary cutting blade to rotate;
the inner assembly is telescopically arranged in the outer assembly through the middle layer.
3. The rotational atherectomy device according to claim 2, wherein the inner assembly further comprises an absorption port, and the absorption port is disposed between the micro-camera and the rotational-cut blade and is configured to absorb blood clots and impurities left after rotational-cutting.
4. The rotational atherectomy device of claim 3, wherein the suction ports are annularly disposed around the micro-camera to form a suction ring, and the rotational atherectomy blades are annularly disposed around the micro-camera to form a rotational atherectomy ring concentric with the suction ring.
5. The atherectomy device of claim 4, wherein the suction ports and the cutting blades are in the same number and are staggered with respect to each other.
6. The rotational atherectomy device of claim 1, wherein the retaining structure comprises:
an annular table located inside the conduit and proximate to one end of the conduit;
a plurality of grippers in an annular array about the conduit centerline;
when the rotary cutter is moved to the rotary cutter placing area, the annular table and the plurality of clamping pieces respectively clamp the upper end and the lower end of the rotary cutter to limit the movement of the position of the rotary cutter.
7. The rotational atherectomy device of claim 6, wherein the retaining member comprises:
one end of the elastic connecting arm is connected with the inner wall of the conduit;
a holding arm located at the other end of the connecting arm;
wherein the end of the clamping arm is provided with a clamping part; the connecting arm extends towards the center of the catheter in an inclined shape at a preset included angle; the clamping arm is approximately parallel to the central line of the conduit and extends downwards from the end part of the connecting arm.
8. The atherectomy device of any of claims 1 to 7, further comprising a guide wire for delivering the atherectomy device, the guide wire extending from one end of the catheter through the interior of the catheter to the other end of the catheter.
9. The rotational atherectomy device of claim 1, wherein:
the catheter also has a handle formed at one end of the catheter;
the handle is provided with a guide wire port and an air outlet;
the guide wire port is communicated with the catheter, and the center of the guide wire port is basically consistent with that of the catheter; the air outlet is formed in the side face of the handle and communicated with the conduit.
10. The atherectomy device of claim 9, further comprising a guide wire for delivering the atherectomy device, the guide wire extending from the guide wire port through the interior of the catheter to the other end of the catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022055509.XU CN213406212U (en) | 2020-09-18 | 2020-09-18 | Rotary cutting device for dredging blood vessel blockage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022055509.XU CN213406212U (en) | 2020-09-18 | 2020-09-18 | Rotary cutting device for dredging blood vessel blockage |
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| Publication Number | Publication Date |
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| CN213406212U true CN213406212U (en) | 2021-06-11 |
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| CN202022055509.XU Active CN213406212U (en) | 2020-09-18 | 2020-09-18 | Rotary cutting device for dredging blood vessel blockage |
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| CN (1) | CN213406212U (en) |
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