CN210170119U - Thrombus suction device - Google Patents
Thrombus suction device Download PDFInfo
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- CN210170119U CN210170119U CN201920241804.9U CN201920241804U CN210170119U CN 210170119 U CN210170119 U CN 210170119U CN 201920241804 U CN201920241804 U CN 201920241804U CN 210170119 U CN210170119 U CN 210170119U
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- piston rod
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- thrombus
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Abstract
The utility model provides a thrombus suction device, which comprises an injector and a suction catheter for sucking thrombus; the injector consists of an empty cylinder and a piston rod arranged in the empty cylinder, wherein the front end of the empty cylinder is provided with a nipple, and the rear end of the empty cylinder is provided with an opening; the piston rod can move back and forth in the hollow cylinder, and the piston of the piston rod is tightly attached to the inner wall of the hollow cylinder; the device is characterized by also comprising a three-way joint and a limiting structure; the three-way joint comprises a first port, a second port, a third port and a control valve; the first port is connected with a nipple of the injector, and the second port is connected with a suction duct; the third port is a thrombus drain; the control valve controls the communication among the first port, the second port and the third port; the limiting structure is arranged on the piston rod and used for limiting the relative movement of the piston rod and the empty syringe barrel and forming a negative pressure cavity in the empty syringe barrel. The device simple structure, the equipment is convenient, adjustable thrombus suction pressure.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to thrombus suction device.
Background
Pulmonary embolism and acute deep venous thrombosis of lower limbs are common emergency in clinic, and patients often need emergency treatment with thrombus aspiration intervention, and thrombus aspiration can be selected in emergency treatment to rapidly remove arterial and venous thrombosis and restore hemodynamics. The operation is convenient, but the thrombus suction device which must be used is expensive in the current market, is disposable consumable, and has relatively higher comprehensive operation cost, so that the technology is not widely developed clinically. Therefore, it is desirable to provide a simple, convenient and cost-effective thrombus aspiration device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a thrombus suction device solves among the prior art thrombus suction device with high costs, the inconvenient problem of adjusting of suction pressure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a thrombus aspiration device comprises an injector and an aspiration catheter for aspirating thrombus; the injector consists of an empty cylinder and a piston rod arranged in the empty cylinder, wherein the front end of the empty cylinder is provided with a nipple, and the rear end of the empty cylinder is provided with an opening; the piston rod can move back and forth in the hollow cylinder, and the piston of the piston rod is tightly attached to the inner wall of the hollow cylinder; the device is characterized by also comprising a three-way joint and a limiting structure;
the three-way joint comprises a first port, a second port, a third port and a control valve; the first port is connected with a nipple of the injector, and the second port is connected with a suction duct; the third port is a thrombus drain; the control valve controls the communication among the first port, the second port and the third port;
the limiting structure is clamped on the piston rod and used for limiting the relative movement of the piston rod and the empty syringe barrel and forming a negative pressure cavity in the empty syringe barrel.
The utility model discloses an embodiment, limit structure includes the stopper and locates spacing slotted hole on the piston rod, the stopper is equipped with the threaded rod, and the threaded rod can remove in spacing slotted hole, the threaded rod of stopper passes spacing slotted hole passes through the fixed centre gripping of nut on the piston rod. The limiting block is locked at the position required by the limiting groove hole through the nut according to requirements, so that the limiting block abuts against the open end of the hollow barrel of the injector to play a limiting role.
Furthermore, the piston rod of the syringe is a cylindrical piston rod, and the limiting groove hole penetrates through the piston rod.
Furthermore, a piston rod of the injector is a blade-type piston rod, and the limiting slotted hole is formed in blades of the piston rod.
The utility model discloses an embodiment, limit structure is the clip, the clip centre gripping plays limiting displacement on the piston rod of syringe.
Further, the piston rod is a blade-type piston rod, the clamp is an elastic clamping piece, and the elastic clamping piece is clamped on the blades of the piston rod.
The utility model discloses an embodiment, thrombus suction device still includes outer pipe of arranging, outer pipe of arranging with three way connection's third port is connected.
An embodiment of the utility model, the syringe is a disposable syringe.
Further, the size range of the syringe is 20-30 ml. The surface of the injector is provided with scales.
The utility model discloses an embodiment, the syringe material is the polypropylene material, three way connection is plastics.
The utility model discloses following beneficial effect has:
(1) the thrombus suction device of the utility model has simple and reasonable structure and convenient assembly and operation, and can be limited by a limit structure by adjusting the piston rod to the corresponding scale, thereby adjusting the pressure of sucking thrombus;
(2) the utility model has simple structure, simple operation, clear immediate effect and relatively low cost, the stainless steel clip can be disinfected and reused, and the disposable syringe and the three-way joint have low price, thereby having great economic benefit and being applicable to medical institutions with deficient sanitary and medical conditions in China.
Drawings
FIG. 1 is a schematic structural view of a thrombus extraction device according to embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of an elastic clip of the thrombus extraction device according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a thrombus extraction device according to embodiment 2 of the present invention;
FIG. 4 is a view in the direction A of FIG. 3;
FIG. 5 is a schematic structural view of a thrombus extraction device according to embodiment 3 of the present invention;
FIG. 6 is a view from the direction B of FIG. 5;
the reference numbers in the figures are as follows: 1-a three-way joint; 2-control of the valve; 3-nipple; 4-empty tube; 5-graduation; 6-a piston rod; 7-a suction catheter; 8-an elastic clip; 9-a limiting block; 10-limiting slotted hole.
Detailed Description
The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and examples, so that those skilled in the art can better understand and implement the technical solutions of the present invention.
Example 1
The thrombus suction device shown in fig. 1 and 2 comprises a disposable injector, a suction catheter 7, a three-way joint 1, an outer discharge catheter and a limiting structure. The disposable syringe is made of polypropylene materials, the outer surface of the syringe is provided with scales 5, the specification of the syringe is 30ml, the syringe consists of an empty cylinder 4 and a piston rod 6 arranged in the empty cylinder 4, the piston rod 6 is a blade-type piston rod and is provided with four blades, the piston of the piston rod 6 is tightly attached to the inner wall of the empty cylinder 4, and the whole piston rod 6 can move back and forth in the empty cylinder 4; the front end of the hollow cylinder 4 is provided with a nipple 3. The three-way joint 1 is made of plastic materials and comprises a first port, a second port, a third port and a control valve 2. Wherein the first port is connected to the nipple 3 of the syringe and the second port is connected to the aspiration catheter 7; the third port is connected with an outer discharge conduit; the control valve 2 controls three connection states among the first port, the second port and the third port. A first closed state, wherein the first port is closed; a second aspiration thrombus state, wherein the first port and the second port are in communication; and a third thrombus clearing state, wherein the first port is communicated with the third port. In this embodiment, the limiting structure is a stainless steel elastic clamping piece 8, the elastic clamping piece 8 is fixedly clamped on the blade of the piston rod 6 to play a limiting role, namely, the piston rod 6 cannot push and press the empty cylinder 4, so that a negative pressure cavity is formed between the empty cylinders 4.
The utility model discloses thrombus suction device's application method: when the device is used, the three-way joint 1 is only needed to control the valve 2 to rotate to a closed state, the piston rod 6 is pulled to a proper scale 5, and a negative pressure cavity is formed between the piston rod 6 and the hollow cylinder 4; the piston rod 6 is clamped by a limiting structure, the piston rod 6 is prevented from being pushed into the empty cylinder 4, the control valve 2 of the three-way joint 1 is rotated to a thrombus suction state, and the thrombus is sucked into the syringe under the action of negative pressure; after the thrombus is sucked, the control valve 2 of the three-way joint 1 is rotated to a thrombus discharging state, the limiting structure is loosened, the piston rod 6 of the injector is pushed, and the thrombus is discharged from the injector along an outer discharge catheter.
Example 2
As shown in fig. 3 and 4, the thrombus suction device of the present embodiment is different from embodiment 1 in that the disposable syringe has a specification of 20ml, the limiting structure includes a limiting block 9 and a limiting slot 10 disposed on the blade of the piston rod 6, the limiting block 9 is provided with a threaded rod, and the threaded rod of the limiting block 9 passes through the limiting slot 10 and is fixedly clamped on the piston rod 6 by a nut; the threaded rod can move in limiting groove hole 10, realizes the regulation of clamping position on stopper 9 and piston rod 6, can select the position that the piston rod 6 piston needs to reach like this according to the specification of empty section of thick bamboo 4, and the nut of screwing locks stopper 9 corresponding position in limiting groove hole 10 for stopper 9 top supports the syringe empty section of thick bamboo 4 open end, and when negative pressure state, piston rod 6 does not bulldoze toward empty section of thick bamboo 4 in.
Example 3
The thrombus aspiration device shown in fig. 5 and 6 is different from embodiment 2 in that the piston rod 6 of the syringe is a cylindrical piston rod, and the stopper groove hole 10 can be provided through the cylindrical piston rod.
The above-mentioned embodiment is only the preferred embodiment of the present invention, but can not be regarded as the restriction to the utility model, any change and improvement based on the inventive concept should fall into the protection scope of the present invention, and the specific protection scope is based on the claims.
Claims (10)
1. A thrombus aspiration device comprising an injector and an aspiration catheter (7) for aspirating thrombus; the injector consists of an empty cylinder (4) and a piston rod (6) arranged in the empty cylinder (4), wherein the front end of the empty cylinder (4) is provided with a nipple (3), and the rear end of the empty cylinder is provided with an opening; the piston rod (6) can move back and forth in the hollow cylinder (4), and the piston of the piston rod (6) is tightly attached to the inner wall of the hollow cylinder (4); the device is characterized by also comprising a three-way joint (1) and a limiting structure;
the three-way joint (1) comprises a first port, a second port, a third port and a control valve (2); the first port is connected to the nipple (3) of the syringe and the second port is connected to the aspiration conduit (7); the third port is a thrombus drain; the control valve (2) controls the communication among the first port, the second port and the third port;
the limiting structure is arranged on the piston rod (6) and used for limiting the relative movement of the piston rod (6) and the empty syringe barrel (4) and forming a negative pressure cavity in the empty syringe barrel (4).
2. The thrombus suction device according to claim 1, wherein the limiting structure comprises a limiting block (9) and a limiting groove hole (10) arranged on the piston rod (6), the limiting block (9) is provided with a threaded rod, and the threaded rod of the limiting block (9) passes through the limiting groove hole (10) and is fixedly clamped on the piston rod (6) through a nut.
3. A thrombus aspiration device according to claim 2, wherein the piston rod (6) of the syringe is a cylindrical piston rod, and the stopper groove hole (10) is provided through the piston rod (6).
4. A thrombus aspiration device according to claim 2, wherein the piston rod (6) of the syringe is a blade-type piston rod, and the stopper groove hole (10) is provided on the blade of the piston rod (6).
5. The thrombus aspiration device according to claim 1, wherein the stopper structure is a clip which is clipped on a piston rod (6) of a syringe to perform a stopper function.
6. A thrombus aspiration device according to claim 5, wherein the piston rod (6) is a vane type piston rod, and the clip is an elastic clip (8), and the elastic clip (8) is clipped on the vane of the piston rod (6).
7. A thrombus aspiration device according to any one of claims 1 to 6, further comprising an outer discharge conduit connected to the third port of the tee fitting.
8. A thrombus aspiration device according to claim 7, wherein the syringe is a disposable syringe.
9. A thrombus aspiration device according to claim 7, wherein the syringe has a gauge in the range of 20-30 ml.
10. A thrombus aspiration device according to claim 9, wherein the syringe material is a polypropylene material and the three-way joint (1) is plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241804.9U CN210170119U (en) | 2019-02-26 | 2019-02-26 | Thrombus suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241804.9U CN210170119U (en) | 2019-02-26 | 2019-02-26 | Thrombus suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210170119U true CN210170119U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920241804.9U Active CN210170119U (en) | 2019-02-26 | 2019-02-26 | Thrombus suction device |
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| CN (1) | CN210170119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904540A (en) * | 2020-09-07 | 2020-11-10 | 泓懿医疗器械(苏州)有限公司 | Device for taking out thrombus attached to wall in blood vessel and using method thereof |
-
2019
- 2019-02-26 CN CN201920241804.9U patent/CN210170119U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904540A (en) * | 2020-09-07 | 2020-11-10 | 泓懿医疗器械(苏州)有限公司 | Device for taking out thrombus attached to wall in blood vessel and using method thereof |
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