Blood clot grabbing device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a blood clot grabbing device which comprises a fixing cylinder, a pushing rod is slidably installed on the surface of the fixing cylinder in a penetrating mode, a vent groove is transversely formed in the center of the interior of the pushing rod, and a fixing plate is fixedly connected to the left side of the fixing cylinder. A positioning adsorption mechanism is installed at the center of the surface of the fixing plate in a penetrating mode, and a movable opening and closing mechanism is installed on the left side of the fixing plate. Through the arrangement of the pushing rod, the elastic screen cloth, the positioning adsorption mechanism, the fixing plate and the movable opening and closing mechanism, the grabbing device has the advantage of flexible grabbing, a sliding barrel can be driven to move rightwards when the pushing rod is pulled to move rightwards, the inclination angles of a plurality of connecting rods are changed at the same time, then three first movable rods rotate inwards, closed grabbing is achieved, and the grabbing efficiency is improved. A small electric push rod can be controlled to stretch out to work, a second movable rod is further driven to rotate inwards, the closing effect is guaranteed, and the blood clots are grabbed in a leakage-proof mode.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a blood clot grabbing device. Background Art

[0002] Medical devices refer to equipment or instruments used for the prevention, diagnosis, treatment, monitoring, and relief of diseases, or for the diagnosis, treatment, monitoring, relief, and compensation of injuries and disabilities, as well as for the study of anatomical or physiological processes.

[0003] The basic grasping device uses a fixed-size clamp to collect and grasp blood clots. This design has a limited grasping range and cannot be expanded or reduced over a large range. It is generally not suitable for grasping blood clots of different specifications. Grasping larger blood clots can easily cause secondary breakage of the blood clots. In order to solve the above technical problems, we have designed a blood clot grasping device. Utility Model Content

[0004] The purpose of the utility model is to provide a blood clot grasping device, which has the advantage of flexible grasping and solves the problem that the grasping range of the device is limited, the device cannot be well expanded and reduced over a large range, the applicability for grasping blood clots of different specifications is general, and the grasping of larger blood clots easily causes secondary breakage of the blood clots.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blood clot grasping device, comprising a fixed cylinder, a push rod is slidably installed on the surface of the fixed cylinder, a ventilation groove is horizontally opened at the center of the inside of the push rod, a fixed plate is fixedly connected to the left side of the fixed cylinder, a positioning adsorption mechanism is installed through the center of the surface of the fixed plate, a movable opening and closing mechanism is installed on the left side of the fixed plate, the number of the movable opening and closing mechanisms is three, and an elastic mesh is installed between the three movable opening and closing mechanisms.

[0006] Preferably, the positioning and adsorption mechanism includes a slide cylinder, the outer ring of the slide cylinder is in sliding contact with the connection between the fixed plate, the right side of the inner cavity of the slide cylinder is connected to the ventilation groove, and the right end of the ventilation groove is connected to the external vacuum generator through a hose.

[0007] Preferably, a suction cup is installed on the left side of the inner cavity of the slide cylinder, and screw threads are provided on the surface of the suction cup and the inner wall of the slide cylinder.

[0008] Preferably, the movable opening and closing mechanism includes a first movable rod and a connecting rod, one end of the connecting rod is movably connected to the connection point of the positioning adsorption mechanism, and the right end of the first movable rod is movably connected to the surface of the fixed plate through a rotating shaft.

[0009] Preferably, the other end of the connecting rod is movably connected to the first movable rod via a rotating shaft, a positioning shaft is movably installed through the surface of the first movable rod, and a second movable rod is fixedly sleeved on the surface of the positioning shaft.

[0010] Preferably, the top and bottom of the surface of the positioning shaft are fixedly sleeved with connecting sleeves, and the top and bottom of the first movable rod are movably mounted with movable blocks.

[0011] Preferably, a small electric push rod is fixedly mounted on the surface of the movable block, and the output end of the small electric push rod is fixedly connected to the connection point of the connecting sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model has the advantage of flexible grasping by arranging a push rod, an elastic mesh, a positioning adsorption mechanism, a fixed plate and a movable opening and closing mechanism. When the push rod is pulled to the right, the slide tube can be driven to move to the right, so that the inclination angles of multiple connecting rods change at the same time, and then the three first movable rods are rotated inwards to achieve closed grasping. The small electric push rod can also be controlled to extend to further drive the second movable rod to rotate inwards, thereby ensuring the closing effect and leak-proof grasping of blood clots. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a sectional stereoscopic diagram of the structure of the utility model;

[0016] Figure 3 It is a sectional stereoscopic diagram of the local structure of the utility model;

[0017] Figure 4 It is a three-dimensional schematic diagram of the movable opening and closing mechanism of the utility model when separated.

[0018] In the figure: 1. fixed cylinder; 2. push rod; 3. elastic mesh; 4. positioning and adsorption mechanism; 401. slide cylinder; 402. suction cup; 403. screw thread; 5. ventilation groove; 6. fixed plate; 7. movable opening and closing mechanism; 701. first movable rod; 702. connecting rod; 703. second movable rod; 704. positioning shaft; 705. connecting sleeve; 706. movable block; 707. small electric push rod. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 4A blood clot grabbing device comprises a fixed cylinder 1, a push rod 2 is slidably installed on the surface of the fixed cylinder 1, a ventilation groove 5 is transversely opened at the center of the push rod 2, a fixed plate 6 is fixedly connected to the left side of the fixed cylinder 1, a positioning adsorption mechanism 4 is installed at the center of the surface of the fixed plate 6, a movable opening and closing mechanism 7 is installed on the left side of the fixed plate 6, the number of the movable opening and closing mechanisms 7 is three, and an elastic mesh 3 is installed between the three movable opening and closing mechanisms 7;

[0020] See also Figure 2 and Figure 3 The positioning adsorption mechanism 4 includes a slide 401, the outer ring of the slide 401 is in sliding contact with the connection of the fixed plate 6, the right side of the inner cavity of the slide 401 is connected to the ventilation groove 5, and the right end of the ventilation groove 5 is connected to the external vacuum generator through a hose;

[0021] See also Figure 2 and Figure 3 A suction cup 402 is installed on the left side of the inner cavity of the slide 401, and screw threads 403 are provided on the surface of the suction cup 402 and the inner wall of the slide 401;

[0022] See also Figure 3 and Figure 4 The movable opening and closing mechanism 7 includes a first movable rod 701 and a connecting rod 702, one end of the connecting rod 702 is movably connected to the connection of the positioning adsorption mechanism 4, and the right end of the first movable rod 701 is movably connected to the surface of the fixed plate 6 through a rotating shaft;

[0023] See also Figure 3 and Figure 4 The other end of the connecting rod 702 is movably connected to the first movable rod 701 through a rotating shaft, a positioning shaft 704 is movably installed on the surface of the first movable rod 701, and a second movable rod 703 is fixedly sleeved on the surface of the positioning shaft 704;

[0024] See also Figure 3 and Figure 4 The top and bottom of the surface of the positioning shaft 704 are fixedly sleeved with a connecting sleeve 705, and the top and bottom of the first movable rod 701 are movably installed with a movable block 706;

[0025] See also Figure 3 and Figure 4 A small electric push rod 707 is fixedly mounted on the surface of the movable block 706, and the output end of the small electric push rod 707 is fixedly connected to the connection of the connecting sleeve 705;

[0026] See also Figure 3 , both ends of the connecting rod 702 are movably connected to the slide 401 and the first movable rod 701 through a rotating shaft, and the connecting rod 702 is in an inclined state;

[0027] The connection between the elastic mesh 3 and the first movable rod 701, the connection between the elastic mesh 3 and the second movable rod 703, and the connection between the elastic mesh 3 and the fixed plate 6 are all fixedly connected;

[0028] The elastic mesh 3 is made of polyetheretherketone fiber, which has the advantages of high strength, high toughness, high temperature resistance, chemical corrosion resistance, radiation resistance, self-lubrication, recyclability and non-toxicity;

[0029] By setting the elastic mesh 3, it can be installed on the first movable rod 701, the second movable rod 703 and the fixed plate 6 to prevent blood clot leakage, and the elastic characteristics can well adjust the overall grasping range of the device. By setting the slide 401, it can meet the installation requirements of multiple connecting rods 702 and communicate with the ventilation groove 5 in the push rod 2;

[0030] By providing the suction cup 402 and the screw thread 403, a threaded connection can be achieved, and the suction cup 402 can be stably installed on the left end of the slide 401, so that suction cups 402 of different specifications can be flexibly installed according to actual needs. By providing the ventilation groove 5, it can be communicated with the inner cavity of the slide 401. By providing the fixing plate 6, the lateral displacement of the slide 401 can be guided, and the installation requirements of multiple first movable rods 701 can be met;

[0031] By providing the first movable rod 701 and the second movable rod 703, the slide cylinder 401 can be connected to the first movable rod 701 by providing the connecting rod 702, and the first movable rod 701 can be moved synchronously when the slide cylinder 401 moves;

[0032] By setting the positioning shaft 704, the movable installation requirements of the first movable rod 701 can be met, and the fixed installation requirements of the connecting sleeve 705 and the second movable rod 703 can be met. By setting the movable block 706, the movable installation requirements of the small electric push rod 707 can be met. By setting the small electric push rod 707, the angle of the second movable rod 703 can be flexibly changed when the small electric push rod 707 is extended or retracted for work;

[0033] In actual application, when the device needs to enter the body for grabbing, the electric telescopic rod can be used to drive the push rod 2 to automatically move; when the device grabs an external blood clot, the push rod 2 can be manually driven to move. This device is manually driven and is mainly used for taking external blood clots. It is widely used in medical laboratories.

[0034] In actual application, the right end of the ventilation groove 5 is connected to an external vacuum generator through a hose. When the external vacuum generator is working, negative pressure is generated and the blood clot is sucked by the suction cup 402 under negative pressure, which can prevent the blood clot from sliding freely and facilitate grasping and processing.

[0035] When in use, all components are in the initial installation state. First, the suction cup 402 approaches the target blood clot, and then the external vacuum generator works to generate negative pressure to absorb the blood clot on the suction cup 402, so as to prevent the blood clot from sliding freely during the grabbing process. When the grabbing operation is required, the push rod 2 is pulled to the right to drive the slide 401 to move to the right. Under the connection action of the connecting rod 702, the three first movable rods 701 rotate inward at the same time, and then the small electric push rod 707 is controlled to extend and work. Under the cooperation of the connecting sleeve 705, the positioning shaft 704 rotates and drives the second movable rod 703 to rotate inward, so that the second movable rod 703 retracts and closes inward to grab the blood clot. In the process of the slide 401 moving to the right, the blood clot will move to the right at the same time with the suction cup 402, so as to prevent the first movable rod 701 and the second movable rod 703 from directly closing and colliding and damaging the blood clot.

[0036] In summary: the blood clot grabbing device, by providing a push rod 2, an elastic mesh 3, a positioning adsorption mechanism 4, a fixed plate 6 and a movable opening and closing mechanism 7, solves the problem that the grabbing range of the device is limited, and it cannot be well expanded and reduced over a large range. It has general applicability for grabbing blood clots of different specifications, and it is easy to cause secondary breakage of blood clots when grabbing larger blood clots.

Claims

1. A blood clot grabbing device, comprising a fixing cylinder (1), characterized in that: A push rod (2) is slidably installed on the surface of the fixed cylinder (1), and a ventilation groove (5) is transversely opened at the center of the inside of the push rod (2). A fixed plate (6) is fixedly connected to the left side of the fixed cylinder (1), and a positioning adsorption mechanism (4) is installed at the center of the surface of the fixed plate (6). A movable opening and closing mechanism (7) is installed on the left side of the fixed plate (6). The number of the movable opening and closing mechanisms (7) is three, and an elastic mesh (3) is installed between the three movable opening and closing mechanisms (7).

2. A blood clot grabbing device according to claim 1, characterized in that: The positioning adsorption mechanism (4) comprises a slide cylinder (401), the outer ring of the slide cylinder (401) is in sliding contact with the connection between the fixed plate (6), the right side of the inner cavity of the slide cylinder (401) is connected to the ventilation groove (5), and the right end of the ventilation groove (5) is connected to an external vacuum generator through a hose.

3. A blood clot grabbing device according to claim 2, characterized in that: A suction cup (402) is installed on the left side of the inner cavity of the slide cylinder (401), and screw threads (403) are provided on the surface of the suction cup (402) and the inner wall of the slide cylinder (401).

4. A blood clot grabbing device according to claim 1, characterized in that: The movable opening and closing mechanism (7) comprises a first movable rod (701) and a connecting rod (702), one end of the connecting rod (702) is movably connected to the connection point of the positioning adsorption mechanism (4), and the right end of the first movable rod (701) is movably connected to the surface of the fixed plate (6) via a rotating shaft.

5. A blood clot grabbing device according to claim 4, characterized in that: The other end of the connecting rod (702) is movably connected to the first movable rod (701) via a rotating shaft, a positioning shaft (704) is movably installed through the surface of the first movable rod (701), and a second movable rod (703) is fixedly sleeved on the surface of the positioning shaft (704).

6. A blood clot grabbing device according to claim 5, characterized in that: The top and bottom of the surface of the positioning shaft (704) are both fixedly sleeved with connecting sleeves (705), and the top and bottom of the first movable rod (701) are both movably mounted with movable blocks (706).

7. A blood clot grabbing device according to claim 6, characterized in that: A small electric push rod (707) is fixedly mounted on the surface of the movable block (706), and an output end of the small electric push rod (707) is fixedly connected to a connection point of the connecting sleeve (705).

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