Pulmonary nodule positioning needle releasing device

Abstract

The utility model discloses a pulmonary nodule positioning needle releasing device in the technical field of pulmonary nodule positioning needles, which comprises an outer tube, a handle is mounted at one end of the outer tube, an inner tube penetrates through the inner side of the handle, a connecting rod penetrates through the inner tube, and a positioning piece is placed at one end of the connecting rod and located on the inner side of the inner tube. A limiting piece is installed on the inner side, close to one end, of the inner tube, the outer tube is driven by the handle to be inserted into the body of a patient, then the inner tube is inserted into the inner side of the outer tube to slide, the positioning piece at one end of the inner side of the inner tube is pushed by the connecting rod to be placed in lung tissue, and the positioning piece is limited and fixed by the limiting piece. The inner tube is limited and fixed through the fixing piece, the inner tube is prevented from shaking or shifting, and the problems that the stability of supporting of the positioning needle is low, the positioning needle is prone to shifting or shaking due to lung tissue during release, the limiting effect of the inner tube structure on the inner side of the puncture tube is poor, and convenience and practicability of release and position adjustment of the positioning needle are affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lung nodule positioning needle technical field, specifically a lung nodule positioning needle release device. BACKGROUND

[0002] More and more lung nodules are found, diagnosed and treated clinically, when performing lung nodule resection operation, need to anchor the positioning needle on the lung nodule, and then distinguish the position of the lesion according to the positioning needle, when anchoring the positioning needle on the lung nodule, first puncture the puncture part into the lung nodule, then release the positioning needle, then pull out the puncture part, when pulling out the puncture part, the puncture part can drive the positioning needle to move.

[0003] The position adjustment operation of the positioning needle in the lung tissue is relatively inconvenient, the stability of the positioning needle support is low, the positioning needle release is easy to be offset or shaken by the lung tissue, and the inner tube structure has poor limiting effect on the inside of the puncture tube, which affects the convenience and practicality of the positioning needle release and position adjustment, therefore, the technical personnel in the art provides a lung nodule positioning needle release device to solve the problems in the background art. SUMMARY

[0004] The utility model discloses a lung nodule positioning needle release device to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a lung nodule positioning needle release device, including the outer tube, the outer tube one end is installed handle, the handle inside passes through the inner tube;

[0006] The inner tube passes through the connecting rod, and the connecting rod one end and located inner tube inside place has the positioning piece, the inner tube inside and close one end installation has the limiting piece, the handle inside is installed two groups of fixed parts, the inner tube passes through handle and outer tube and with its sliding.

[0007] Preferably, the positioning piece includes a fixed rod placed in the inner tube, a plurality of grooves arranged circumferentially are formed on the outer side of the fixed rod, a positioning strip is connected to one end of the groove, and the positioning strip is fixedly connected with the groove.

[0008] Preferably, the limiting piece includes a limiting frame connected to the inner side of the inner tube and close to one end, the limiting frame is filled with an elastic strip on the inner side, and the end section of the limiting frame is arc-shaped.

[0009] Preferably, two fixed grooves are formed on the two sides of the fixed rod and close to one end, two fixed blocks are connected to one end of the connecting rod, and the fixed blocks are movably connected with the fixed grooves.

[0010] Preferably, the fixing member comprises two fixing rings mounted on the inner side of the handle, and a fixing strip is connected to the inner side of the fixing rings, and the end section of the fixing strip is arc-shaped.

[0011] Preferably, a movable cavity is formed in the inner side of the fixing strip, and two elastic sheets are connected to the inner side of the movable cavity, and the two elastic sheets are fixedly connected.

[0012] Preferably, the other end of the connecting rod is connected with a fixing plate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. In the utility model, the handle is used to drive the outer tube to be inserted into the patient's body, then the inner tube is inserted into the inner side of the outer tube to slide, the connecting rod is used to push the positioning member at one end of the inner tube to be placed in the lung tissue, the limiting member is used to limit and fix the positioning member, the fixing member is used to limit and fix the inner tube, and the inner tube is prevented from shaking or deviating.

[0015] 2. In the utility model, the fixing rod, the groove and the positioning strip are arranged, the positioning strip is arc-shaped, the positioning strip is made of alloy material, the fixing rod is placed at one end of the inner tube, the four grooves on the outer side of the fixing rod can provide a placing space for the positioning strip, and the four positioning strips on the outer side of the fixing rod are expanded after being separated from the inner tube, so that the four positioning strips can position the lung tissue nodules.

[0016] 3. In the utility model, the limiting frame, the limiting strip, the fixing groove and the fixing block are arranged, the elastic strip in the inner side of the limiting frame can support the limiting frame, so that the inner side of the limiting frame is tightened to limit and fix the positioning strip, the two fixing blocks at one end of the connecting rod are embedded into the two fixing grooves at one end of the fixing rod, the connecting rod drives the fixing rod to rotate in the inner tube through the fixing blocks in the fixing grooves, so as to adjust the position of the fixing rod placed in the lung nodule tissue, and then the fixing rod is pushed to be separated from the inner tube through the connecting rod to release the operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the overall structure of the utility model;

[0018] Figure 2 It is a left view of the overall structure of the utility model;

[0019] Figure 3 It is a schematic view of the overall structure of the utility model; Figure 2 It is an enlarged view of A in the utility model;

[0020] Figure 4 It is an enlarged view of B in the utility model; Figure 2 It is an enlarged view of B in the utility model;

[0021] Figure 5 The utility model discloses a whole structure Figure 2 The enlarged view of C in the middle;

[0022] Figure 6 The utility model discloses a whole structure of fixed rod, recess, positioning strip and fixed groove structure schematic view.

[0023] In the drawing: 1, outer tube;2, handle;3, inner tube;4, connecting rod;5, fixed rod;6, recess;7, positioning strip;8, limiting frame;9, elastic strip;10, fixed groove;11, fixed block;12, fixed ring;13, fixed strip;14, movable cavity;15, elastic sheet;16, fixed plate. Specific implementation

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0025] Please refer to Figures 1-6 In the embodiments of the utility model, a lung nodule positioning needle release device includes an outer tube 1, one end of the outer tube 1 is provided with a handle 2, the inner side of the handle 2 is penetrated by an inner tube 3, the inner tube 3 is penetrated by a connecting rod 4, one end of the connecting rod 4 is provided with a positioning piece in the inner side of the inner tube 3, the inner side of the inner tube 3 is provided with a limiting piece close to one end, the inner side of the handle 2 is provided with two groups of fixed pieces, and the inner tube 3 penetrates the handle 2 and the outer tube 1 and slides with them.

[0026] When in use, the handle 2 drives the outer tube 1 to be inserted into the patient's body, then the inner tube 3 is inserted into the inner side of the outer tube 1 to slide, the connecting rod 4 pushes the positioning piece at one end of the inner side of the inner tube 3 to be placed in the lung tissue, the limiting piece limits and fixes the positioning piece, and the fixed piece limits and fixes the inner tube 3 to prevent the inner tube 3 from shaking or deviating.

[0027] In one embodiment, specifically, the positioning piece includes a fixed rod 5 placed in the inner side of the inner tube 3, a plurality of recesses 6 arranged in a circle are formed in the outer side of the fixed rod 5, one end of the recess 6 is connected with a positioning strip 7, and the positioning strip 7 is fixedly connected with the recess 6.

[0028] Among them, the positioning strip 7 is arc-shaped, the positioning strip 7 is made of alloy material, the fixed rod 5 is placed at one end in the inner side of the inner tube 3, the four recesses 6 in the outer side of the fixed rod 5 can provide a placing space for the positioning strip 7, and the four positioning strips 7 in the outer side of the fixed rod 5 expand after being separated from the inner tube 3, so that the four positioning strips 7 position the lung tissue nodule.

[0029] Further, the limiting member comprises a limiting frame 8 connected to the inner side of the inner tube 3 and close to one end, the inner side of the limiting frame 8 is filled with elastic strips 9, two fixed grooves 10 are formed on the two sides of the fixed rod 5 and close to one end, two fixed blocks 11 are connected to one end of the connecting rod 4, a fixed plate 16 is connected to the other end of the connecting rod 4, the fixed blocks 11 are movably connected with the fixed grooves 10, and the end section of the limiting frame 8 is arc-shaped.

[0030] In one embodiment, specifically, the elastic strips 9 on the inner side of the limiting frame 8 can support the limiting frame 8, so that the inner side of the limiting frame 8 is tightened to limit and fix the positioning strip 7, the two fixed blocks 11 at one end of the connecting rod 4 are embedded into the two fixed grooves 10 at one end of the fixed rod 5, the fixed plate 16 at the other end of the connecting rod 4 is convenient for an operator to hold the connecting rod 4, and is also convenient for the operator to identify the position of the adjusting supporting strip, the connecting rod 4 is driven to rotate and telescopic slide by the fixed plate 16, so that the connecting rod 4 drives the fixed rod 5 to rotate in the inner tube 3 through the fixed blocks 11 in the fixed grooves 10, so as to adjust the position of the fixed rod 5 placed in the pulmonary nodule tissue, and then the fixed rod 5 is pushed away from the inner tube 3 by the connecting rod 4 to release.

[0031] The fixing member comprises two fixed rings 12 mounted on the inner side of the handle 2, a fixed strip 13 connected to the inner side of the fixed ring 12, a movable cavity 14 formed on the inner side of the fixed strip 13, two elastic sheets 15 connected to the inner side of the movable cavity 14, and the two elastic sheets 15 are fixedly connected, the end section of the fixed strip 13 is arc-shaped, the two fixed rings 12 can support the fixed strip 13, the fixed strip 13 is also annular, the movable cavity 14 on the inner side of the fixed strip 13 can increase the deformation degree of the fixed strip 13, and the elastic sheet 15 can expand and support the fixed strip 13, so that the inner side of the two fixed strips 13 limits and fixes the inner tube 3, and the inner tube 3 is prevented from shaking in the inner side of the handle.

[0032] The working principle of the utility model is as follows:

[0033] First, the fixed rod 5 is inserted into the inner side of the inner tube 3, then the positioning strip 7 is extruded into the groove 6 by the inner tube 3, the connecting rod 4 is driven to slide and rotate in the inner side of the inner tube 3 by the handle, then the outer tube 1 on one side of the handle 2 is inserted into the pulmonary nodule of the patient, then the fixed blocks 11 at one end of the connecting rod 4 are embedded into the fixed grooves 10 on the top of the fixed rod 5, at this time, the elastic strips 9 on the inner side of the limiting frame 8 support the limiting frame 8, then the inner side of the limiting frame 8 is tightened to limit and fix the positioning strip 7, at the same time, the fixed rings 12 on the inner side of the handle 2 support the fixed strips 13, then the elastic sheets 15 expand and support the fixed strips 13, at this time, the inner side of the two fixed strips 13 limits and fixes the inner tube 3, then the connecting rod 4 drives the fixed rod 5 to rotate in the inner tube 3 through the fixed blocks 11 in the fixed grooves 10, so as to adjust the position of the fixed rod 5 placed in the pulmonary nodule tissue, and then the fixed rod 5 is pushed away from the inner tube 3 by the connecting rod 4 to release.

[0034] The above merely describes a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be covered within the scope of protection of the present application.

Claims

1. A lung nodule localization needle release device comprising an outer tube (1), characterized in that: The outer tube (1) is provided with a handle (2) at one end, and the handle (2) is penetrated by an inner tube (3); The inner tube (3) is penetrated by a connecting rod (4), one end of the connecting rod (4) is provided with a positioning piece inside the inner tube (3), the inner side of the inner tube (3) is provided with a limiting piece near one end, and the inner side of the handle (2) is provided with two groups of fixing pieces, the inner tube (3) penetrates the handle (2) and the outer tube (1) and slides with them.

2. The lung nodule localization needle release device of claim 1, wherein: The positioning piece comprises a fixed rod (5) placed inside the inner tube (3), a plurality of grooves (6) are arranged circumferentially on the outer side of the fixed rod (5), one end of the groove (6) is connected with a positioning strip (7), and the positioning strip (7) is fixedly connected with the groove (6).

3. The lung nodule localization needle release device of claim 2, wherein: The limiting piece comprises a limiting frame (8) connected with the inner side of the inner tube (3) and close to one end, the inner side of the limiting frame (8) is filled with an elastic strip (9), and the end section of the limiting frame (8) is arc-shaped.

4. The lung nodule localization needle release device of claim 2, wherein: Two fixed grooves (10) are arranged on the both sides of the fixed rod (5) and close to one end, two fixed blocks (11) are connected with one end of the connecting rod (4), and the fixed blocks (11) are movably connected with the fixed grooves (10).

5. The lung nodule localization needle release device of claim 1, wherein: The fixing piece comprises two fixed rings (12) mounted on the inner side of the handle (2), the inner side of the fixed ring (12) is connected with a fixed strip (13), and the end section of the fixed strip (13) is arc-shaped.

6. The lung nodule localization needle release device of claim 5, wherein: The inner side of the fixed strip (13) is provided with a movable cavity (14), the inner side of the movable cavity (14) is connected with two elastic sheets (15), and the two elastic sheets (15) are fixedly connected.

7. The lung nodule localization needle release device of claim 2, wherein: The connecting rod (4) is connected with a fixed plate (16) at the other end.

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