CN111513812A - loose body removal device - Google Patents

Abstract

The invention discloses a device for taking out loose bodies, comprising a mesh bag, a connecting device and an adjusting handle. The mesh bag includes a mesh surface and a mesh surface frame, the edge of the mesh surface is connected with the mesh surface frame, and the connection device includes a guide The sleeve and the connecting rod slidably arranged inside the guide sleeve, one end of the connecting rod is connected to the mesh surface frame, and the adjusting handle is connected to the connecting rod for driving the connecting rod to slide in the guide sleeve, and the connecting rod drives the mesh when sliding. The face frame slides into or out of the guide sleeve to adjust the mesh size of the mesh bag exposed outside the guide sleeve, which reduces the number of times of using surgical clamps to capture loose bodies, and reduces the risk of loose bodies being captured and taken out. Reduce the difficulty of surgery.

Description

loose body removal device

technical field

The invention relates to the field of medical equipment, in particular to a device for removing loose bodies.

Background technique

Loose bodies move in joints, also known as joint mice. In joints such as knees or elbows, the convex surface of certain pressure epiphysis can undergo ischemic necrosis and exfoliation under repeated external force, and are free in joints, called exfoliation. Osteochondritis (joint loose bodies), in addition, synovial metaplasia on the loose body can form chondrocytes or bone cells to continue to grow. In the prior art, surgical clamps are often used to capture loose bodies. Due to the smooth surface of loose bodies, multiple captures are required when using surgical clamps, and the opening and occlusion of the surgical clamps may cause damage to other tissues and free Factors such as different body shapes, different sizes and smooth surfaces often cause loose bodies to fall off during the process of removing loose bodies with surgical clamps, which increases the difficulty of surgery.

Therefore, in order to solve the above problems, there is a need for a device for removing loose bodies, which can reduce the number of times of capturing loose bodies, reduce the risk of loose bodies falling off, and reduce the difficulty of surgery.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a device for removing loose bodies, which can reduce the number of times of capturing loose bodies, reduce the risk of loose bodies falling off, and reduce the difficulty of surgery.

The loose body removal device of the present invention includes a mesh bag, a connection device and an adjustment handle, the mesh bag includes a mesh surface and a mesh surface frame, the mesh surface edge is connected to the mesh surface frame, and the connection device includes a guide sleeve and a sliding A connecting rod arranged inside the guide sleeve, one end of the connecting rod is connected to the mesh surface frame, the adjusting handle is connected to the connecting rod for driving the connecting rod to slide in the guide sleeve, and the connecting rod drives the mesh surface when sliding The skeleton slides into or out of the guide sleeve to adjust the size of the mesh opening of the mesh bag exposed outside the guide sleeve.

Further, the adjusting handle comprises a casing and a sliding member slidably arranged on the casing, the guide sleeve is connected to the casing, a sliding groove is opened on the casing, and the sliding member is arranged in the sliding groove, One end of the connecting rod is connected to the sliding piece, so that the sliding piece drives the connecting rod to slide in the guide sleeve.

Further, the adjustment handle further includes a limit component installed on the housing for positioning the sliding member, so that the size of the mesh opening of the mesh bag is maintained constant after the mesh opening size of the mesh bag is adjusted.

Further, the limiting assembly includes an elastic member, a positioning plate and a baffle, the positioning plate and the baffle are respectively connected to the housing and the sliding member, and the elastic member has an elastic force to press the positioning plate on the baffle , to position the positioning plate.

Further, the chute is opened on the casing along the lateral direction, the sliding member includes a sliding base and a driving member arranged in the sliding groove, the positioning plates are longitudinally arranged on both sides of the driving member, and the baffles are connected to each other. On the side wall of the chute, the baffle is located above the positioning plate, and the sliding base and the driving member are connected by elastic parts, so that the lower surface of the sliding base abuts against the lower surface of the inner cavity of the chute, and the upper surface of the positioning plate abuts the baffle lower surface.

Further, the lower surface of the driving member is provided with a receiving groove for placing the elastic member, the sliding base is provided with a boss adapted to the receiving groove, the boss is located in the receiving groove, and the elastic member is located in the receiving groove inside and connect the boss and the receiving groove.

Further, the joint surface of the positioning plate and the baffle is provided with a matching anti-slip protrusion.

Further, the edge of the mesh surface is covered on the mesh surface frame, so that the mesh surface edge is dispersed on the mesh surface frame when the mesh surface frame is opened, and the mesh surface edge is gathered on the mesh surface frame when the mesh surface frame is closed, and the size of the mesh opening of the mesh bag is adjusted. .

Further, the mesh surface frame is formed by bending a rod body, and the two free ends of the rod body are connected to each other and extend outward in parallel to form a connecting rod.

Further, the inner surface of the guide sleeve is provided with a slide rail for the connecting rod to slide.

The beneficial effects of the present invention are as follows: in the device for removing loose bodies disclosed in the present invention, the connecting rod is controlled to slide inside the guide sleeve by adjusting the handle; Different sizes of loose bodies can be captured. Using this device can effectively capture loose bodies with smooth surface and strong freeness, different shapes and sizes, reducing the number of times of using surgical clamps to capture loose bodies, and reducing The risk of body capture detachment and removal detachment reduces the difficulty of surgery.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention is further described:

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural schematic diagram of the present invention when the cross-section connecting rod mesh bag skeleton is opened to A-A;

3 is a schematic structural diagram of the present invention when A-A is folded to the cross-section connecting rod mesh bag skeleton;

Fig. 4 is the structural representation of the guide sleeve 3 of the present invention;

Fig. 5 is the structural representation of the B-B cross section of the present invention;

FIG. 6 is a schematic view of the C-C direction structure of the B-B direction section of the present invention.

Detailed ways

Fig. 1 is the structural representation of the present invention; Fig. 2 is the structural representation of the present invention when A-A is opened to the cross-section connecting rod mesh bag skeleton; Fig. 3 is the structural representation of the present invention when the cross-sectional connecting rod mesh bag skeleton is folded; Fig. 4 is the Figure 5 is a schematic structural diagram of the B-B section of the present invention; Figure 6 is a C-C structural schematic diagram of the B-B section of the present invention. In this embodiment, the lateral direction is the length direction of the casing 4, and the The longitudinal direction is the width direction of the casing 4 . As shown in the figure, the free body removal device in this embodiment includes a mesh bag, a connecting device and an adjustment handle, the mesh bag includes a mesh surface 2 and a mesh surface frame, and the edge of the mesh surface 2 is connected with the mesh surface frame, so The connecting device includes a guide sleeve 3 and a connecting rod 1 slidably arranged inside the guide sleeve 3. One end of the connecting rod 1 is connected to the mesh frame, and the adjusting handle is connected to the connecting rod for driving the connecting rod to the guide sleeve. When sliding inside, the connecting rod drives the mesh frame to slide into or out of the guide sleeve to adjust the size of the mesh opening of the mesh bag exposed outside the guide sleeve. The mesh surface 2 is made of a flexible material with a certain deformability, and the mesh surface frame is made of a rigid material with a certain support capacity. The caliber, that is, the mesh surface frame is opened. At this time, the mesh bag is in an open state to facilitate the capture of loose bodies. The mesh surface frame is slid into the corresponding mesh bag. When the mesh bag is in a sealed state, the captured loose bodies are confined in the mesh bag. The connection between the edge of the mesh surface 2 and the skeleton reduces the existence of the redundant mesh surface 2, improves the utilization rate of the mesh surface 2, and reduces the excess mesh. The effect of face 2 on capturing loose bodies. The mesh skeleton follows the sliding of the connecting rod 1 in the guide sleeve 3, and adjusts the mesh size of the mesh bag correspondingly. The edge of the mesh 2 can be fixedly connected with the mesh skeleton. When the mesh skeleton is closed, the mesh is connected. The rod 1 pulls the mesh bag into the guide sleeve 3, and the mesh bag is in a sealed state at this time. When the mesh surface frame is opened, the connecting rod 1 will push out the mesh bag pulled into the guide sleeve 3, and the mesh bag is in an open state at this time. However, this adjustment will cause the mesh surface 2 located between the mesh surface skeleton and the guide sleeve 3 to be seriously damaged when the mesh surface 2 is opened or closed for many times, and needs to be replaced frequently, the utilization rate of the mesh surface 2 is low, and the mesh surface 2 When the surface frame is opened or folded, it is easy to clamp the mesh surface 2 in the guide sleeve 3, which makes the mesh surface frame difficult to open or close, and if the force is too strong when stuck in the guide sleeve 3, the mesh surface 2 will be torn, etc. , affecting the capture of loose bodies, and even causing harm to patients in severe cases, or other such as fixing the mesh surface 2 to the mesh surface skeleton, when the connecting rod 1 slides, it can also control the mesh size of the mesh bag. other means, which will not be repeated here. When the loose body is captured, the mesh bag in the sealed state is extended to the patient, and the connecting rod 1 is adjusted to slide in the guide sleeve 3 by adjusting the handle, and the mesh surface frame is controlled to open so that the mesh bag is in an open state. The loose bodies of different sizes in the body are captured, and after the capture, the connecting rod 1 is adjusted by adjusting the handle, and the mesh frame is controlled to be retracted so that the mesh bag is in a sealed state again. The loose body existing in the patient can be taken out by pulling the bag out of the patient. During this process, the mesh bag is inserted into and pulled out of the patient with a small diameter to reduce the damage to the patient and other surrounding tissues. , the use of this device is convenient to capture loose bodies of different sizes, and can effectively capture loose bodies with smooth surfaces and strong freeness, different shapes and sizes, reducing the number of times of using surgical clamps to capture loose bodies, and The risk of loose body catching and falling off and taking out and falling off is reduced, and the difficulty of the operation is reduced. The guide sleeve 3 can be set in a sleeve shape, can also be set in a spiral shape that rotates along a certain steering wheel, or is designed in other structures such as a broken line. , the connecting rod 1 and the guide sleeve 3 are conformally arranged inside the guide sleeve 3, so that the connecting rod 1 can slide in the guide sleeve 3 to drive the mesh frame to adjust the mesh size of the mesh bag, which will not be repeated here.

In this embodiment, the adjusting handle includes a casing 4 and a sliding member slidably arranged on the casing 4 , the guide sleeve 3 is connected to the casing 4 , and the casing 4 is provided with a sliding groove 15 , so The sliding member is arranged in the chute 15 , and one end of the connecting rod 1 is connected to the sliding member, so that the sliding member drives the connecting rod 1 to slide in the guide sleeve 3 . The adjustment handle can also be configured as a plug and a socket with a matching plug-in structure, so that the plug is connected to one end of the connecting rod 1, and the connecting rod 1 can be adjusted to slide in the guide sleeve 3 by adjusting the different positions of the plug on the socket. , or other structures such as electric push rods are provided to drive the connecting rod 1 to slide in the guide sleeve 3 to adjust the size of the mesh opening of the mesh bag. The formed adjustment handle can adjust the size of the mesh opening of the mesh bag only by adjusting the sliding member, and has a simple structure, convenient operation and low cost. Inside the housing 4 , the sliding piece connected to one end of the connecting rod 1 can be arranged in the chute 15 to drive the connecting rod 1 to slide in the guide sleeve 3 . The guide sleeve 3 is glued with the housing 4 through the through hole through, and of course, connection methods such as screw connection and riveting can also be used, which will not be repeated here.

In this embodiment, the adjusting handle further includes a limiting component mounted on the housing for positioning the sliding member, so that the size of the mesh opening of the mesh bag is maintained constant after the mesh opening size of the mesh bag is adjusted. The purpose of setting the limit component is to locate the position of the sliding piece when adjusting the sliding piece on the housing 4, so as to better determine the size of the mesh opening of the mesh bag, and reduce the failure of the first capture and the frequent manipulation of the adjustment handle. step to improve the efficiency of capturing free bodies.

In this embodiment, the limiting assembly includes an elastic member 10, a positioning plate 7 and a baffle 12. The positioning plate 7 and the baffle 12 are respectively connected to the housing 4 and the sliding member. The elastic member 10 has a The elastic force of the positioning plate 7 pressing on the baffle plate 12 is used to form the positioning of the positioning plate 7 . The position-limiting assembly can also be configured as a structure in which the positioning pins are matched with the positioning grooves. The position of the sliding piece is positioned by using a positioning pin inserted and withdrawn in the positioning slot. The matching of the positioning pin and the positioning slot is the prior art, which will not be repeated here, or through the component Friction positioning, magnetic positioning or other positioning methods can be used to adjust the size of the mesh opening of the mesh bag and maintain a constant mesh size, which will not be repeated here. The elastic member 10, the positioning plate 7 and the baffle 12 are used to limit the components, and the structure is simple. , the operation is convenient, and the cost is low. The matching of the positioning plate 7 and the baffle 12 means that the positioning plate 7 and the baffle 12 are structurally matched, and can be set as a protrusion that matches at the joint surface of the two. , the baffle plate 12 and the positioning plate 7 are also arranged to be embedded in each other, so that the sliding member can be positioned, which will not be repeated here.

In this embodiment, the chute 15 is provided on the casing 4 in the lateral direction, the sliding member includes a sliding base 8 and a driving member 9 disposed in the chute 15 , and the positioning plate 7 is longitudinally disposed on the driving member 9 . 9, the baffle 12 is connected to the side wall of the chute 15, the baffle 12 is located above the positioning plate 7, the sliding base 8 and the driving member 9 are connected by the elastic member 10, so that the sliding base 8 goes down The surface abuts the lower surface of the inner cavity of the chute 15 , and the upper surface of the positioning plate 7 abuts the lower surface of the baffle 12 . The tail of the chute 15 is provided with a plug 11 to close, and the tail of the chute 15 is the end of the casing 4 that is laterally away from the mesh bag. The slot 15 and the detachable plug 11 that closes the chute 15 facilitate the installation of the internal components of the chute 15 and the replacement of the internal components, which greatly improves the service life of the device and the utilization rate of components. Two plates 7 are arranged on both sides of the driving member 9, and two baffle plates 12 are arranged on the side walls of the chute 15, and are in a corresponding relationship with the positioning plate 7, so that the baffle plate 12 and the chute 15 are enclosed to accommodate the sliding parts. The driving member 9 and the sliding base 8 are arranged in the chute 15 through the elastic member 10, and the elastic member 10 has the elastic force to make the upper surface of the positioning plate 7 and the lower surface of the baffle plate 12 close The size of the mesh opening is kept constant after adjusting the mesh size of the mesh bag. When the upper surface of the positioning plate 7 and the lower surface of the baffle 12 are far away from each other, the driving member 9 can drive the sliding base 8 to slide in the chute 15 to The sliding piece can be slid on the casing 4 along the lateral direction to adjust the size of the mesh opening of the mesh bag. The setting of the limit component realizes that when the positioning plate 7 and the baffle 12 are far away from each other, the sliding piece can slide on the casing 4, so that the sliding piece can slide on the casing 4. It has good controllability. When the positioning plate 7 and the baffle 12 are close to each other, the sliding member is fixed on the housing 4, so that the sliding member has a good positioning effect, which improves the use performance of the adjustment handle and facilitates the flexibility of the adjustment handle. For control, one end of the connecting rod 1 is connected to the sliding base 8, and the connection is glued here. Of course, other connection methods such as threaded connection or screw connection are also possible, which will not be repeated here. 1 One end is inserted into the glue groove inside the sliding base 8, which further improves the stable connection between one end of the connecting rod 1 and the sliding base 8, and reduces the situation that the connecting rod 1 falls off and shakes when the adjustment handle is in use, which affects the operability of the device. The plate 7 and the driving member 9 are integrally formed. Of course, the positioning plate 7 can also be set on the driving member 9 by means of gluing or screw connection, which will not be repeated here. The casing 4 and the baffle 12 are integrally formed. Of course, the baffle plate 12 can also be glued or screwed on the casing 4 , which will not be repeated here. Protrusion, the driving member protrusion protrudes out of the housing 4 , and the driving member protrusion is a columnar structure with a hemispherical protrusion on the top, which is convenient for the operator to control the driving member 9 .

In this embodiment, the lower surface of the driving member 9 is provided with a receiving groove for placing the elastic member 10 , and the sliding base 8 is provided with a boss 6 which is adapted to the receiving groove, and the boss 6 is located in the receiving groove. , the elastic member 10 is located in the accommodating groove and connects the boss 6 and the accommodating groove. The elastic member 10 can also be directly arranged between the driving member 9 and the sliding base 8, but this connection method is prone to the elastic member 10 being separated from the driving member 9 and the sliding base 8, or when the driving member 9 drives the sliding base 8. The slippage of the elastic member 10 occurs, which affects the manufacturability of the device, affects the capture of loose bodies, and even affects the normal use of the device or causes damage to the patient's disease in severe cases, causing unnecessary trouble. The accommodating groove plays a role in limiting the position of the elastic member 10, and the boss 6 presses the elastic member 10 into the accommodating groove to further stably arrange the elastic member 10 between the driving member 9 and the sliding base 8, thereby improving the performance of the elastic member 10. The maneuverability of the device reduces the risk during surgery, improves the capture efficiency of loose bodies, and reduces the failure of the elastic member 10 during use of the sliding member. The elastic member 10 failure includes the elastic member 10 being separated from the driving member 9 and the sliding base 8. The elastic member 10 slips and moves between the driving member 9 and the sliding base 88, which will not be repeated here. The sliding base 8 is a disc-shaped structure, and the boss 6 is arranged at the center of the sliding base 8 to match the accommodating groove. The sliding base 8 and the boss 6 are integrally formed. Of course, the boss 6 is also The elastic member 10 can be arranged on the sliding base 8 by means of cementation or screw connection, which will not be repeated here. The elastic member 10 is a spring, which has a certain deformation effect and elastic force, and can realize the flexible use of the sliding member. The member 10 may also be a material such as rubber or other elastic elements with certain deformation effect and elastic force, which will not be repeated here.

In this embodiment, matching anti-slip protrusions are provided at the joint surfaces of the positioning plate 7 and the baffle 12 . The upper surface of the positioning plate 7 and the lower surface of the baffle plate 12 are provided with positioning teeth 13 that cooperate with each other, so that when the upper surface of the positioning plate 7 abuts against the lower surface of the baffle plate 12, the lower surface of the sliding base 8 abuts on the bottom surface of the chute 15. Position the sliding member to maintain the size of the mesh opening of the mesh bag. The positioning teeth 13 are tooth-like protruding structures extending from the baffle 12 and the positioning plate 7 to the contact surface. The precise control of the mesh size of the mesh bag also further improves the stability of the sliding member when it is fixed, and reduces the phenomenon that the sliding member fails to control the size of the mesh bag or the mesh bag cannot be fixed, which is convenient for medical care. For the capture and removal of loose bodies by personnel, the anti-skid protrusions can also be arranged as smooth hemispherical protrusions, which are arranged in a mutually engaging manner or are arranged in other structures, so as to further prevent the sliding mechanism provided on the housing 4. The sliding member performs precise positioning, which is not repeated here.

In this embodiment, the edges of the mesh surface 2 are covered on the mesh surface skeleton, so that when the mesh surface skeleton is opened, the mesh surface 2 edges are scattered on the mesh surface skeleton, and when the mesh surface skeleton is closed, the mesh surface 2 edges are gathered on the mesh surface skeleton. Adjust the size of the mesh opening of the mesh bag. The edge of the mesh surface 2 and the guide sleeve 3 are connected by two collars 5, of course, bonding, riveting and other connection methods can also be used, which will not be repeated here, the edge of the mesh surface 2 is covered on the mesh surface skeleton and the guide sleeve 3. One end is fixedly connected to form a sliding connection between the edge of the mesh surface 2 and the mesh surface skeleton. When the mesh surface skeleton is closed, the connecting rod 1 pulls the mesh surface skeleton into the guide sleeve 3, and the edge of the mesh surface 2 that covers the mesh surface skeleton. The mesh frame is gathered on the mesh surface, and the mesh bag is in a sealed state at this time. When the mesh surface frame is opened, the connecting rod 1 will push out the mesh surface frame pulled into the guide sleeve 3. The skeleton is dispersed, and the mesh bag is in an open state at this time. This kind of design not only improves the utilization rate of the mesh surface 2, but also does not cause the tearing of the mesh surface 2 and the influence of the mesh surface 2 and the guide sleeve 3. body capture efficiency.

In this embodiment, the mesh surface frame is formed by bending a rod body, and the two free ends of the rod body are connected to each other and extend parallel to the outside to form a connecting rod 1 . The mesh skeleton is formed by bending a rod to form a closed annular structure. One and two connecting rods 1 adjust the mesh frame at the same time. The connecting rods 1 are arranged side by side in the longitudinal direction inside the guide sleeve 3. Compared with the single connecting rod 1, the structural stability is improved, and the single connecting rod 1 is connected When the rod 1 structure adjusts the opening or closing of the mesh frame, it will inevitably lead to the premature failure of the mesh frame due to frequent bending on one side of the mesh frame, affecting the service life of the mesh frame, and the two connecting rods 1 Connecting to the two free ends of a rod body solves such problems, and can make the mesh skeleton open or close at the same time, so that the mesh opening of the mesh bag is round when adjusted, which is convenient for the capture of loose bodies. The mesh surface frame and the connecting rod 1 are all made of steel wires with a diameter of no more than 0.7cm, preferably 0.5cm, to ensure the service strength and life of the connecting rod 1 and the mesh surface frame under the condition of ensuring the yield strength. The skeleton and the rod body can also be made of plastic or other materials, which will not be repeated here. The mesh surface skeleton and the connecting rod 1 are integrally formed, forming a connecting sliding base 8 that extends through the guide sleeve 3 and the edge of the mesh surface 2. And the detour guide sleeve 3 is connected to the rod body of the sliding base 8 again. Of course, the mesh surface frame can also be connected by bonding, screw connection, etc., which will not be repeated here. The mesh surface 2 is made of nylon material, and the mesh surface 2 is made of nylon material. The mesh diameter on the surface 2 is not more than 0.25cm ² , preferably 0.01cm ² , and the maximum diameter of the mesh opening of the mesh bag is 2.0cm, preferably 2.0cm. The distance from the lowest point of the face 2 is not more than 2.0cm, preferably 2.0cm. The mesh bag is designed with this specification to meet the fast and accurate capture of loose bodies in general. Of course, the mesh bag can choose the mesh surface according to the actual situation. 2. The diameter of the mesh and the diameter of the mesh opening of the mesh bag. The connecting rod 1 can also control the opening size of the mesh opening of the mesh bag and the height of the mesh surface frame to the lowest point of the mesh surface 2 according to the actual situation. It can be made of plastic or other materials, which will not be repeated here.

In this embodiment, the inner surface of the guide sleeve 3 is provided with a sliding rail for the connecting rod 1 to slide, and the sliding rail is a protrusion 16 adapted to the outer surface of the connecting rod 1. When sliding inside, the connecting rod 1 will move with a small frictional force inside the guide sleeve 3, and the small frictional force will cause the connecting rod 1 to move too fast inside the guide sleeve 3, which is not conducive to the user's operation of the The controllable adjustment of the mesh size of the mesh bag during the installation, in order to improve the good control performance of the connecting rod 1 when sliding in the guide sleeve 3, the device adds a protrusion 16 on the inner surface of the guide sleeve 3 to increase the inner surface of the guide sleeve 3. The frictional force on the outer surface of the connecting rod 1 reduces the phenomenon that the connecting rod 1 slides too fast inside the guide sleeve 3, plays the role of controllable adjustment of the sliding speed of the connecting rod 1, and further improves the precise control of the mesh size of the mesh bag , the protrusions 16 are evenly arranged on the inner surface of the guide sleeve 3, and there are gaps between the adjacent protrusions 16 to facilitate the sliding of the connecting rod 1 to avoid the situation that the connecting rod 1 is difficult to slide due to too many protrusions 16. The protrusions 16 The integral molding with the guide sleeve 3 is made of a rubber material, of course, it can also be made of a material such as plastic, which will not be repeated here.

In this embodiment, the side wall of the chute 15 relatively protrudes into the slot along the longitudinal direction to form a guide table 14 , the driving member 9 and the sliding base 8 are both arranged between the guide tables 14 , and the guide table 14 is close to the drive The side surface of the member 9 is matched with a certain gap between the driving member 9 and the sliding base 8, so that the guide table 14 can guide the driving member 9 and the sliding base 8 in the lateral direction, and also guide the driving member 9 and the sliding base 8 in the longitudinal direction. Part 9 and the sliding base 8 to limit the position, the guide table 14 is close to the sliding base 8 and has a certain gap on the upper surface of the sliding base 8 to match, and the sliding base 8 is limited in the height direction, so that the sliding base 8 is along the height direction. The predetermined trajectory movement further improves the safety performance of the device. When the positioning plate 7 and the baffle plate 12 are far away from each other, the side of the guide table 14 close to the positioning plate 7 can be used as a bearing platform for the positioning plate 7 to move laterally. Said guide table 14 can also guide the driving element 9 along the height direction on the side close to the side of the driving element 9, which further improves the stability of the sliding element when it moves laterally and improves the safety of the device. The setting of the guiding table 14 reduces the sliding element. Shaking, unstable sliding, etc. during use will affect the use of the device, and will not be repeated here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A device for taking out loose bodies, characterized in that: comprising a mesh bag, a connecting device and an adjustment handle, the mesh bag comprises a mesh surface and a mesh surface skeleton, and the edge of the mesh surface is connected with the mesh surface skeleton, and the connecting device It includes a guide sleeve and a connecting rod slidably arranged inside the guide sleeve. One end of the connecting rod is connected to the mesh frame, and the adjusting handle is connected to the connecting rod for driving the connecting rod to slide in the guide sleeve. The connecting rod When sliding, it drives the mesh surface frame to slide into or out of the guide sleeve to adjust the mesh size of the mesh bag exposed outside the guide sleeve. 2 . The device for removing loose bodies according to claim 1 , wherein the adjusting handle comprises a casing and a sliding member slidably arranged on the casing, the guide sleeve is connected to the casing, and the casing A sliding groove is opened on the upper part, the sliding piece is arranged in the sliding groove, and one end of the connecting rod is connected with the sliding piece, so that the sliding piece drives the connecting rod to slide in the guide sleeve. 3 . The free body removal device according to claim 2 , wherein the adjusting handle further comprises a limit component mounted on the housing for positioning the sliding member, so that after adjusting the size of the mesh opening of the mesh bag, 3 . The size of the network port remains constant. 4 . The device for removing loose bodies according to claim 3 , wherein the limiting component comprises an elastic member, a positioning plate and a baffle, and the positioning plate and the baffle are respectively connected to the casing and the sliding member, 4 . The elastic member has an elastic force for pressing the positioning plate on the baffle plate, so as to form a positioning for the positioning plate. 5 . The device for removing loose bodies according to claim 4 , wherein the chute is opened on the casing along the lateral direction, the sliding member comprises a sliding base and a driving member arranged in the chute, and the The positioning plates are longitudinally arranged on both sides of the driving member, the baffles are connected to the side walls of the chute, the baffles are located above the positioning plates, and the sliding base and the driving member are connected by elastic members, so that the lower surface of the sliding base On the lower surface of the inner cavity of the chute, the upper surface of the positioning plate abuts the lower surface of the baffle plate. 6 . The free body removal device according to claim 5 , wherein the lower surface of the driving member is provided with a receiving groove for placing the elastic member, and the sliding base is provided with a boss adapted to the receiving groove, 7 . The boss is located in the accommodating groove, and the elastic piece is located in the accommodating groove and connects the boss and the accommodating groove. 7 . The device for removing loose bodies according to claim 5 , wherein a matching anti-slip protrusion is provided on the joint surface of the positioning plate and the baffle. 8 . 8 . The device for removing loose bodies according to claim 1 , wherein the edge of the mesh surface is wrapped around the mesh surface frame, so that the mesh surface edge is dispersed on the mesh surface frame when the mesh surface frame is opened, and when the mesh surface frame is closed. 9 . The edges of the mesh surface are gathered on the mesh surface frame to adjust the size of the mesh opening of the mesh bag. 9 . The free body removal device according to claim 8 , wherein the mesh frame is formed by bending a rod body, and the two free ends of the rod body are connected to each other and extend parallel to the outside to form a connecting rod. 10 . 10 . The loose body removal device according to claim 9 , wherein the inner surface of the guide sleeve is provided with a slide rail for the connecting rod to slide. 11 .

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