CN210784539U - Intervene treatment and use thrombus suction filter equipment - Google Patents
Intervene treatment and use thrombus suction filter equipment Download PDFInfo
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- CN210784539U CN210784539U CN201921507565.3U CN201921507565U CN210784539U CN 210784539 U CN210784539 U CN 210784539U CN 201921507565 U CN201921507565 U CN 201921507565U CN 210784539 U CN210784539 U CN 210784539U
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Abstract
The utility model discloses an intervene treatment and contain with thrombus suction filter equipment: negative pressure subassembly and filtering component, the negative pressure subassembly contains: the negative pressure container body is provided with an accommodating space, and the far end of the negative pressure container body is provided with a thrombus suction port and a thrombus filtration feedback port; the piston is in seamless sliding connection with the inner wall of the negative pressure container body and divides the accommodating space into a first space and a second space; and a push-pull rod fixedly connected with the piston; the filter assembly comprises: the filter element is composed of a plurality of layers of filter screens and is communicated with the thrombus filtering feedback port; and a fixing member for fixing the filter member in the negative pressure container body. The device low in manufacturing cost, use portably, when guaranteeing negative pressure in the injection tube, preventing to have thrombus blood reflux, the blood loss that causes when effectively reducing the repeating suction of Guiding pipe and tying can effectively filter the thrombus when interveneeing the operation, no matter be low limbs artery embolism or deep vein thrombosis formation all can use, is suitable for the scene extensively.
Description
Technical Field
The utility model relates to a medical instrument, more specifically relates to a intervene treatment and use thrombus suction filter equipment.
Background
With the aggravation of the aging degree of China, the incidence rate of cardiovascular diseases is remarkably improved, the number of patients with peripheral thromboembolic diseases is greatly increased, and meanwhile, the vascular interventional therapy technology is developed at a high speed and gradually becomes a main mode for treating vascular diseases.
Vascular intervention has great development potential as a novel discipline in recent years. Currently, the main treatment methods for acute arterial embolism of lower limbs include traditional heparin treatment, catheterization, thrombolysis, and Fogarty balloon catheter embolectomy. To date, Fogarty balloon catheter embolization has become the best accepted treatment and has achieved good therapeutic results in clinical practice. However, Fogarty catheter embolectomy also has certain limitations, such as the inability of the catheter to reach the distal smaller vessels, and the possibility of Fogarty catheter embolectomy also advancing the patient's thrombus distally during the procedure.
Therefore, patients with distal small vessel arterial embolization are often treated with Guiding catheter aspiration embolization. The device has the advantages of simple process, remarkable effect, low cost and the like, and can effectively remove obstruction by repeatedly pumping the embolus under negative pressure by using the injector in the treatment process, so that the treatment time is short and remarkable treatment effect can be obtained in a short time. It is best to perform Guiding catheter suction on a confirmed lower limb arterial embolism patient immediately: the catheter is delivered to the thrombus of the patient, and a 50ml syringe is externally connected with the catheter and continuously performs negative pressure suction until the thrombus of the patient is completely removed and the blood flow is recovered.
In the interventional operation process, especially when the Guiding catheter is repeatedly used for sucking thrombus, in order to avoid blood containing thrombus from flowing back to a human body, after the suction is finished, in the process of withdrawing the Guiding catheter in a vascular sheath, a vascular forceps is required to be used for clamping one side of a push-pull rod of an injector, the operation clamping time and the selection of a clamping part are particularly critical, and the possibility of thrombus backflow can be caused by slight negligence. Meanwhile, the thrombus is mixed in the syringe, so that the great loss of blood of a patient is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thrombus suction filter equipment can be in keeping injection tube negative pressure, preventing to contain thrombus blood reflux in, effectively filters the thrombus of mixing in blood in the guide's pipe suction plug back syringe to in the reinforceing patient body to the blood that does not contain the thrombus, reduce patient's unnecessary blood loss, improve patient's prognosis.
In order to achieve the above object, the utility model provides a thrombus suction filter device for interventional therapy, it contains: negative pressure subassembly and filtering component, the negative pressure subassembly include:
the negative pressure container body is provided with an accommodating space, and the far end of the negative pressure container body is provided with a thrombus suction port positioned at the upper part and a thrombus filtration and feedback port positioned at the lower part; the thrombus suction port is connected with a Guiding catheter and is used for sucking thrombus; the thrombus filtration and feedback port is connected with a vascular sheath or a catheter for interventional therapy, and the connection mode is preferably screwed;
the piston is seamlessly connected with the inner wall of the negative pressure container body, can slide along the inner wall of the negative pressure container body and divides the accommodating space into a first space at the near end and a second space at the far end, the first side of the piston is positioned in the first space, and the second side of the piston is positioned in the second space; the second space is divided into an upper part and a lower part by a baffle plate which is arranged on the inner wall of the negative pressure container body in a seamless connection way; and
one end of the push-pull rod is fixedly connected with the first side of the piston, and the other end of the push-pull rod is a handheld end;
the filter assembly comprises:
a filter member composed of a plurality of layers of filter screens, which is arranged at the lower part of the second space and is positioned at the lower part of the baffle plate, so that the filter member is separated from the thrombus suction port and is communicated with the thrombus filtration feedback port; and
and the filter element is fixed in the negative pressure container body by a fixing element.
Wherein, the proximal end refers to the end close to the operator, and the distal end refers to the end far away from the operator.
Preferably, the negative pressure assembly further comprises:
the buckle is connected with the push-pull rod, is positioned in the first space, can be driven by the push-pull rod to move along the length direction of the push-pull rod, and can rotate by taking the push-pull rod as an axis; and
and the two clamping grooves are oppositely arranged on the inner wall of the negative pressure container body and are positioned in the first space.
The buckle is in a cross shape, and the end part of the buckle is contacted with the inner wall of the negative pressure container body.
Preferably, the clamping groove is composed of 4 first fixing gaskets, the two first fixing gaskets are arranged up and down, and correspond to the clamping buckles one by one. The clamping groove can be matched with the push-pull rod in a buckling mode through rotating the push-pull rod, negative pressure can be effectively kept, namely, continuous negative pressure in a negative pressure container is kept when the Guiding catheter sucks thrombus, so that thrombus-containing blood is prevented from flowing back to a human body.
Preferably, the proximal end of the negative pressure container is provided with a gripping part.
Preferably, the negative pressure container is cylindrical and is an injection cylinder.
Preferably, the piston is a cylinder, is connected with the injection tube in a seamless way and can slide in the injection tube under the action of force; with section of thick bamboo wall looks adaptation, stability is strong, and blood stream strikes and can not cause not hard up. Through the push-and-pull of push-and-pull rod, effectively keep a section of thick bamboo interior (second space) negative pressure to prevent to suck the in-process and contain thrombus blood backward flow human body, the sealed effect of seamless connection formation simultaneously guarantees that blood does not spill over outside the section of thick bamboo.
Preferably, the filter element is semicircular, the filter screen is a polymer filter screen made of 3112PTFEKnit, so that thrombus can be intercepted, and the influence on the hemodynamics can be reduced as much as possible.
Preferably, the fixing member is a second fixing pad.
Preferably, the second fixing pad is in a semicircular ring shape.
Preferably, the second fixing gasket is connected with the inner wall of the negative pressure container body, and the second fixing gasket is seamlessly connected with the polymer filter screen, so that the stability of the polymer filter screen during thrombus filtration can be maintained.
Preferably, the thrombus filtering system is a semi-cylinder, is separated from the thrombus suction port by a high polymer material baffle which is arranged in the negative pressure container and is seamlessly connected with the inner wall of the negative pressure container, is communicated with the thrombus filtering feedback port, and can effectively filter thrombus at the blood inlet under the condition of not being connected with the blood inlet.
In this context, "left end" refers to the end provided with the neck, while "right end" refers to the end of the syringe nipple connected to the catheter or sheath for interventional therapy, "upper end" refers to the blood inlet end, and "lower end" refers to the blood outlet end.
The device low in manufacturing cost, use portably, can use Guiding pipe when inhaling the bolt repeatedly in intervening the operation, the blood that contains the thrombus of quick suction-out and quick fixed injection tube guarantee negative pressure in the injection tube, prevent that the blood that contains the thrombus from returning back to the human body, later accessible filter unit filters the blood that contains the thrombus to in the reinfusion to patient quick again to the blood that does not contain the thrombus, effectively reduce unnecessary blood and lose, improve patient's prognosis. The device provided by the utility model, no matter be lower limbs artery embolism or deep vein thrombosis formation all can use, suitable scene expands greatly, and clinical application prospect is good.
Drawings
Fig. 1 is a schematic structural view of a thrombus aspiration and filtration device for interventional therapy according to the present invention.
Fig. 2 is a schematic diagram of a left side view structure of a push-pull rod of the thrombus aspiration filtering device for interventional therapy of the present invention.
Fig. 3 is a schematic diagram of a left side view structure of a filter assembly of the thrombus aspiration and filtration device for interventional therapy of the present invention.
Fig. 4 is a schematic structural view of an injection tube handle of the thrombus aspiration filtering device for interventional therapy of the present invention.
Fig. 5 is a schematic structural view of the push-pull rod handle of the thrombus aspiration filtering device for interventional therapy of the present invention.
Fig. 6 is a schematic structural view of the graduated syringe of the thrombus aspiration filtering device for interventional therapy of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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 the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, for the utility model provides a thrombus suction and filtration device for interventional therapy, the device comprises a negative pressure component and a filtration component.
The negative pressure assembly comprises:
the negative pressure container body 1 with a containing space is provided with a thrombus suction port 7 at the upper part of the right end and a thrombus filtration and feedback port 8 at the lower part, and can be connected with a catheter and a vascular sheath for interventional therapy in a screwing mode;
the piston 3 is arranged in the negative pressure container body 1, the piston 3 is connected with the inner wall of the negative pressure container body 1 in a seamless mode and can slide along the inner wall of the negative pressure container body 1, the accommodating space is divided into a first space 11 located at the near end and a second space 12 located at the far end by the piston 3, the first side of the piston is located in the first space 11, and the second side of the piston is located in the second space 12; the second space 12 is divided into an upper part and a lower part by a baffle 121 which is arranged on the inner wall of the negative pressure container body in a seamless connection way; and
the push-pull rod 2 has a distal end fixedly connected to the first side of the piston 3, and a proximal end serving as a handle, which may be a grip, as shown in fig. 5. The piston 3 keeps the negative pressure in the negative pressure container body through the push-pull matching with the push-pull rod 2, prevents blood containing thrombus from flowing back to a human body in the suction process, and simultaneously ensures that the blood does not overflow out of the negative pressure container body.
The filter assembly comprises:
a filter 5 formed of a plurality of layers of filter nets, provided at a lower portion of the second space 12 below the baffle plate 121 such that the filter 5 is spaced apart from the thrombus aspiration port 7 and the filter 5 communicates with the thrombus filtration feedback port 8; and
a fixing member 9 for fixing the filter member 5 in the negative pressure container body;
wherein, the proximal end refers to the end close to the operator, and the distal end refers to the end far away from the operator.
The filter element is in a semi-cylinder shape, is formed by stacking a plurality of layers of filter screens with the same size, is matched with the negative pressure container, and has strong stability, and the blood flow impact cannot cause looseness. The filter screen be the polymer filter screen, the material is 3112PTFE Knit. The filter element is separated from the thrombus suction port 7 by a high polymer material baffle which is arranged in the negative pressure container and is in seamless connection with the wall (if the negative pressure container is cylindrical, the wall is cylindrical), and is communicated with the thrombus filtration and feedback port 8, so that thrombus at the blood inlet can be effectively filtered under the condition of not being connected with the blood inlet.
In some preferred embodiments, as shown in fig. 1 and 2, the negative pressure assembly further comprises:
the buckle 4 is movably connected with the push-pull rod 2, is positioned in the first space 11, can be driven by the push-pull rod to move along the length direction of the push-pull rod, and can rotate by taking the push-pull rod 2 as an axis; and
and the two clamping grooves 6 matched with the two ends of the buckle 2 are oppositely arranged on the inner wall of the negative pressure container body and are positioned in the first space 11.
In some preferred embodiments, the two locking slots 6 are formed by 4 first fixing pads, two of which are arranged up and down, and correspond to the locking buckles 4 one by one.
In some preferred embodiments, the negative pressure container body 1 is provided with a grip portion 10 at the proximal end. As shown in fig. 4, the grip portion 10 is a grip and is integrally formed with the negative pressure container main body. When the operator uses the Guiding catheter to suck and filter thrombus, the operator holds the handle by hand to stabilize the syringe and avoid the connection between the syringe and the catheter for interventional therapy from falling off.
In some preferred embodiments, the negative pressure container body is cylindrical and is a syringe, as shown in fig. 6, and the outer surface of the negative pressure container body is provided with scales for measuring the amount of the extracted thrombus-containing blood.
In some preferred embodiments, the piston 3 is a cylinder, and is connected to the syringe without a seam, and can slide in the syringe under force.
In some preferred embodiments, the filter element 5 is semicircular, as shown in fig. 3. The fixing piece 9 is a second fixing gasket and is in a semicircular ring shape. The second fixed gasket is connected with the inner wall of the negative pressure container body 1, and the second fixed gasket is connected with the filtering piece in a seamless mode, so that the stability of the filtering piece during thrombus filtration can be kept.
In some preferred embodiments, a movable push-pull rod 2 is disposed inside the negative pressure container body 1 (i.e. the syringe), and a cross-shaped buckle 4 is disposed in the middle of the push-pull rod 2 and on the left side of the piston, as shown in fig. 2, and the edge of the buckle 4 contacts with the inner wall of the syringe and can move along with the movement of the push-pull rod 2. The negative pressure in the cylinder is effectively kept through the push-pull of the push-pull rod 2, the blood containing thrombus is prevented from flowing back to the human body in the suction process, and the blood is prevented from overflowing out of the cylinder; the buckle 4 is set to the forked main purpose of cross and is that accessible rotation 90 mode and the 6 looks adaptations of draw-in groove that constitute by 4 first fixed shim that set up in the injection tube inside wall are stabilized fixed injection tube after the thrombus suction finishes, effectively keep a section of thick bamboo interior negative pressure, prevent to contain thrombus blood reflux catheter.
Set up respectively at the semicircle annular second fixed shim 9 of polymer filter screen both sides, thickness is about 0.5cm, one end and main part seamless connection, the surface and the polymer filter screen seamless connection of gasket body, the purpose is the periphery of putting at the semi-cylindrical filter screen of cover, makes filter screen stability strong, and the blood stream strikes and can not cause not hard up.
The utility model discloses a intervene treatment and filter device with thrombus suction, when using Guiding pipe suction cock, the operation doctor puts into the human body internal blood vessel thrombus lower extreme with Guiding pipe, closes soon thrombus suction mouth 7 and Guiding pipe soon to be connected, and the assistant filters the thrombus with the feedback mouth 8 through closing soon mode and medical tee bend pipe connection simultaneously, closes the knob, and closed thrombus filters feedback mouth 8, confirms and begins suction thrombus after being errorless. When the 50ml syringe is filled with blood, an operator holds the push-pull rod 2 by hand, rotates the syringe leftwards or rightwards for about 90 degrees while keeping the negative pressure in the syringe, and enables the buckle 4 to be matched and clamped with the clamping groove 6, so that the blood containing thrombus can be effectively prevented from flowing back to the body of a patient through the Guiding catheter. After the suction thrombus is finished, the Guiding catheter is withdrawn from the blood vessel sheath, the suction device and the three-way pipe are taken down from the Guiding catheter, the three-way pipe is connected with the thrombus suction port 7, the knob is closed, the thrombus suction port 7 is closed, the clamping groove 6 in the injection cylinder is unscrewed from the buckle 4, after air is exhausted, the thrombus filtration feedback port 8 is screwed with the blood vessel sheath to be connected, and the filtered blood without thrombus is quickly returned to the body of the patient. Then, the thrombus suction filtration device is taken down, and the thrombus suction filtration device is flushed by heparin water. And finally, after the thrombus in the suction device is washed, placing the suction device on one side of an operating table for later use. The function of the thrombus suction filtering device can be exerted by the operation.
In a word, the utility model provides an in the operation is intervene to the blood vessel, when the stopper is inhaled to Guiding pipe repetition promptly, when guaranteeing negative pressure in the injection tube, preventing to contain thrombus blood reflux, effectively filter the thrombus, further reduce blood loss, no matter be low limbs artery embolism or deep vein thrombus formation all can use for the suitable scene that the stopper was inhaled to the pipe improves greatly, and clinical application is very extensive. Effectively reducing the operation risk and the economic burden.
Further, all the materials of the present invention can be selected from one or more of latex, silica gel, and polymer materials, such as polypropylene, polystyrene, polyurethane, polyvinylidene alcohol, polycarbonate, nylon, delrin (polyoxymethylene resin), and the like, and a combination of two or more of these polymer materials can also be used. In a preferred embodiment, all components are made of a material that is biocompatible, flexible and resistant to breakage and allows for long dwell times.
Vessel intervention is as novel subject in recent years, consumptive materials such as various seal wires, pipe, vascular sheath are relied on in its operation, the utility model provides a device can increase the suitable scene of Guiding pipe, lets medical staff rationally avoid the risk of bleeding in the art, when guaranteeing negative pressure in the injection tube, preventing to contain thrombus blood reflux, the blood loss that causes when effectively reducing the suction plug.
No matter in the condition of arterial embolism or patients with deep venous thrombosis, thrombus can be filtered through the device, the sufficiency of blood volume is ensured in interventional operation, the operation safety coefficient is improved, the operation bleeding is reduced, and the economic burden of the patients possibly caused by blood transfusion in the follow-up process is reduced.
In addition, the utility model has low manufacturing cost and is convenient for medical personnel to use.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A thrombus aspiration filter device for interventional therapy, the device comprising: negative pressure subassembly and filtering component, the negative pressure subassembly include:
the negative pressure container body is provided with an accommodating space, and the far end of the negative pressure container body is provided with a thrombus suction port positioned at the upper part and a thrombus filtration and feedback port positioned at the lower part;
the piston is seamlessly connected with the inner wall of the negative pressure container body, can slide along the inner wall of the negative pressure container body and divides the accommodating space into a first space at the near end and a second space at the far end, the first side of the piston is positioned in the first space, and the second side of the piston is positioned in the second space; the second space is divided into an upper part and a lower part by a baffle plate which is arranged on the inner wall of the negative pressure container body in a seamless connection way; and
the far end of the push-pull rod is fixedly connected with the first side of the piston, and the near end of the push-pull rod is a handheld end;
the filter assembly comprises:
a filter member composed of a plurality of layers of filter screens, which is arranged at the lower part of the second space and is positioned at the lower part of the baffle plate, so that the filter member is separated from the thrombus suction port and is communicated with the thrombus filtration feedback port; and
a fixing member for fixing the filter member in the negative pressure container body;
wherein, the proximal end refers to the end close to the operator, and the distal end refers to the end far away from the operator.
2. The interventional procedure thrombus aspiration filter device of claim 1, wherein the negative pressure assembly further comprises:
the buckle is arranged on the push-pull rod, is positioned in the first space, can be driven by the push-pull rod to move along the length direction of the push-pull rod, and can rotate by taking the push-pull rod as an axis; and
and the two clamping grooves are oppositely arranged on the inner wall of the negative pressure container body and are positioned in the first space.
3. The thrombus suction filter device for interventional therapy as set forth in claim 2, wherein the buckles are in a cross shape, and ends of the buckles are in contact with an inner wall of the negative pressure container body.
4. The thrombus suction filter device for interventional therapy as set forth in claim 2, wherein the two slots are formed by 4 first fixing gaskets, two of which are provided one above the other and are adapted to the respective snap-fit fasteners.
5. The thrombus aspiration filter device for interventional therapy as set forth in claim 1, wherein the negative pressure container body is provided at a proximal end thereof with a grip portion.
6. The thrombus suction filter device for interventional therapy as set forth in claim 1, wherein the negative pressure container body is cylindrical and is an injection cylinder.
7. A thrombus suction filter device for interventional therapy as set forth in claim 6, wherein said piston is a cylindrical body seamlessly connected with said syringe barrel and capable of sliding inside the syringe barrel under force.
8. A thrombectomy filter device according to claim 1, wherein said filter member is a semi-cylindrical shape.
9. The thrombus aspiration filter device for interventional therapy as set forth in claim 8, wherein the fixing member is a second fixing pad having a semicircular ring shape.
10. The thrombus suction filter device for interventional therapy as set forth in claim 9, wherein the second fixing pad is connected to the inner wall of the negative pressure container body, and the second fixing pad is seamlessly connected to the filter net to maintain the stability of the filter net during thrombus filtration.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921507565.3U CN210784539U (en) | 2019-09-11 | 2019-09-11 | Intervene treatment and use thrombus suction filter equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921507565.3U CN210784539U (en) | 2019-09-11 | 2019-09-11 | Intervene treatment and use thrombus suction filter equipment |
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| CN210784539U true CN210784539U (en) | 2020-06-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759402A (en) * | 2020-08-14 | 2020-10-13 | 刘倩 | Cardiovascular embolism intervention thrombus taking device |
| CN114307321A (en) * | 2022-03-09 | 2022-04-12 | 河南瑞科医疗器械有限公司 | Filter cartridge type filtering device and application thereof in peripheral blood vessel interventional thrombus removal system |
| CN116327316A (en) * | 2023-05-23 | 2023-06-27 | 北京心祐医疗科技有限公司 | Reciprocating thrombi aspiration type injector and thrombi aspiration system |
-
2019
- 2019-09-11 CN CN201921507565.3U patent/CN210784539U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759402A (en) * | 2020-08-14 | 2020-10-13 | 刘倩 | Cardiovascular embolism intervention thrombus taking device |
| CN114307321A (en) * | 2022-03-09 | 2022-04-12 | 河南瑞科医疗器械有限公司 | Filter cartridge type filtering device and application thereof in peripheral blood vessel interventional thrombus removal system |
| CN114307321B (en) * | 2022-03-09 | 2022-06-07 | 河南瑞科医疗器械有限公司 | Filter cartridge type filtering device and application thereof in peripheral blood vessel interventional thrombus removal system |
| CN116327316A (en) * | 2023-05-23 | 2023-06-27 | 北京心祐医疗科技有限公司 | Reciprocating thrombi aspiration type injector and thrombi aspiration system |
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