Spring ring positioning device for CT (Computed Tomography) guidance before pulmonary nodule minimally invasive surgery

Abstract

The invention relates to the technical field of medical instruments, in particular to a spring ring positioning device for CT guiding before pulmonary nodule minimally invasive surgery, and aims to solve the problem that the moving-out speed of a spring ring is difficult to control. The spring ring positioning device comprises a machine shell, a puncture assembly is arranged on the left side of the machine shell, and a control assembly is arranged on the right side of the machine shell; a driving assembly is arranged in the machine shell, the puncturing assembly comprises a guide pipe installed on the left side face of the machine shell, and a spring ring body is arranged in the guide pipe. Through cooperation of a rotating rod, a rotating wheel and a second bevel gear, a first bevel gear can rotate, then a connecting gear is controlled to rotate, the moving speed of a guide rod can be controlled through the meshing effect of the connecting gear and a toothed plate, and therefore the guide rod can move left and right and can push a spring ring body to move out of a guide pipe; the ejection force generated by instant elastic expansion when the spring ring body is pushed out is reduced, so that the positioning accuracy is improved, and the operation risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a spring coil positioning device for CT guidance before minimally invasive surgery of lung nodules. Background Art

[0002] Minimally invasive surgery for lung nodules is usually performed through thoracoscopic surgery. Compared with traditional open chest surgery, this method has the advantages of less trauma and faster recovery. In recent years, CT-guided lung nodule localization technology has been widely recognized by thoracic surgery. Currently, spring coils are generally used in clinical practice to locate lung nodules.

[0003] Although the current spring coil positioning device can push the spring when in use, it still has some shortcomings during actual use. For example, it is difficult to control the removal speed of the spring coil when releasing the spring coil. As a result, the removal speed is generally controlled by relying on the work experience of medical staff when releasing the spring coil, resulting in higher surgical precision requirements and greater surgical risks.

[0004] Based on this, the present invention designs a spring coil positioning device for CT guidance before minimally invasive surgery for lung nodules to solve the problem. Summary of the Invention

[0005] The purpose of the present invention is to provide a CT-guided coil positioning device for minimally invasive lung nodule surgery before surgery, so as to solve the problem in the above-mentioned background technology that it is difficult to control the removal speed of the coil.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a spring coil positioning device for CT guidance before minimally invasive surgery for lung nodules, comprising a housing, a puncture component is provided on the left side of the housing, a control component is provided on the right side of the housing, and a drive component is provided inside the housing.

[0007] Preferably, the puncture assembly includes a catheter installed on the left side of the housing, a spring coil body is provided inside the catheter, and a puncture head is fixedly installed on the left end of the catheter.

[0008] Preferably, the driving assembly includes a rotating shaft rotatably mounted through a bearing, a connecting gear fixedly mounted on the outer surface of the rotating shaft, a first bevel gear fixedly mounted on the outer surface of the rotating shaft, a rotating rod rotatably mounted through a bearing on the upper surface of the casing, a second bevel gear fixedly mounted on the bottom end of the rotating rod, the second bevel gear meshes with the first bevel gear, a rotating wheel fixedly mounted on the top end of the rotating rod, and the rotating shaft is located on the right side of the catheter.

[0009] Preferably, the control component includes a sliding tube installed on the right side of the casing, the inner wall of the sliding tube is slidably installed with a guide rod, the outer surface of the guide rod is provided with two guide grooves, the inner wall of each guide groove is slidably installed with a slide bar, the ends of the two slide bars away from each other are fixedly installed on the inner wall of the sliding tube, the upper surface of the guide rod is provided with a flat groove, the upper surface of the flat groove is fixedly installed with a tooth plate, and the tooth plate is meshed with the connecting gear.

[0010] Preferably, a baffle is provided on the right side of the guide rod, the left side of the baffle is fixedly mounted to the right side of the guide rod, and the diameter of the baffle is greater than the diameter of the sliding tube.

[0011] Preferably, two positioning rings are fixedly mounted on the outer surface of the rotating shaft, and the side surfaces of the two positioning rings close to each other are fixedly mounted to the front side and the back side of the connecting gear respectively.

[0012] Preferably, rubber strips are fixedly mounted on the front and back of the casing, a fixing seat is fixedly mounted on the outer surface of the conduit, and the left side of the fixing seat is fixedly mounted to the inner wall of the casing.

[0013] Compared with the prior art, the beneficial effects of the present invention are: through the cooperation of the rotating rod, the rotating wheel and the second bevel gear, the first bevel gear can be rotated, thereby controlling the rotation of the connecting gear, and utilizing the meshing action of the connecting gear and the tooth plate, the moving speed of the guide rod can be controlled, so that the guide rod can move left and right, so that the guide rod can push the spring coil body out of the catheter, reducing the ejection force generated by the instantaneous elastic expansion when the spring coil body is pushed out, thereby improving the positioning accuracy and reducing the risk of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the front cross-section of the present invention;

[0017] Figure 3 Schematic diagram of the split structure of the drive assembly of the present invention;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the control component of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Casing; 2. Puncture assembly; 201. Catheter; 202. Puncture head; 203. Spring coil body; 3. Drive assembly; 301. Rotating shaft; 302. Connecting gear; 303. Positioning ring; 304. Second bevel gear; 305. First bevel gear; 306. Rotating rod; 307. Rotating wheel; 4. Control assembly; 401. Slide tube; 402. Guide rod; 403. Flat groove; 404. Guide groove; 405. Slide bar; 406. Tooth plate; 5. Rubber strip; 6. Baffle; 7. Fixed seat. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 The present invention provides a technical solution: a spring coil positioning device for CT guidance before minimally invasive surgery for lung nodules, comprising a housing 1, a puncture component 2 is provided on the left side of the housing 1, a control component 4 is provided on the right side of the housing 1, and a drive component 3 is provided inside the housing 1.

[0023] See also Figure 1 and Figure 2 The puncture assembly 2 includes a catheter 201 installed on the left side of the casing 1, a spring coil body 203 is provided inside the catheter 201, and a puncture head 202 is fixedly installed on the left end of the catheter 201. The puncture head 202 can be used to puncture the device.

[0024] See also Figure 3 The driving assembly 3 includes a rotating shaft 301 rotatably mounted through a bearing, a connecting gear 302 is fixedly mounted on the outer surface of the rotating shaft 301, a first bevel gear 305 is fixedly mounted on the outer surface of the rotating shaft 301, and a rotating rod 306 is rotatably mounted on the upper surface of the casing 1 through a bearing, a second bevel gear 304 is fixedly mounted on the bottom end of the rotating rod 306, the second bevel gear 304 is meshed with the first bevel gear 305, and a rotating wheel 307 is fixedly mounted on the top of the rotating rod 306. The rotating shaft 301 is located on the right side of the conduit 201. By cooperating with the first bevel gear 305 and the second bevel gear 304, the second bevel gear 304 can control the rotation of the rotating shaft 301, so that the rotating shaft 301 can drive the connecting gear 302 to rotate.

[0025] See also Figure 4The control component 4 includes a slide tube 401 installed on the right side of the casing 1, and a guide rod 402 is slidably installed on the inner wall of the slide tube 401. Two guide grooves 404 are provided on the outer surface of the guide rod 402, and a slide bar 405 is slidably installed on the inner wall of each guide groove 404. The ends of the two slide bars 405 away from each other are fixedly installed on the inner wall of the slide tube 401, and a flat groove 403 is provided on the upper surface of the guide rod 402. A tooth plate 406 is fixedly installed on the upper surface of the flat groove 403, and the tooth plate 406 is meshed with the connecting gear 302. By utilizing the cooperation of the guide rod 402, the guide groove 404 and the slide bar 405, the guide rod 402 can be moved along the direction of the guide groove 404, and by utilizing the cooperation of the tooth plate 406 and the connecting gear 302, the guide rod 402 can be moved when the connecting gear 302 rotates, thereby applying pressure to the spring coil body 203.

[0026] See also Figure 4 A baffle 6 is provided on the right side of the guide rod 402. The left side of the baffle 6 is fixedly installed to the right side of the guide rod 402. The diameter of the baffle 6 is greater than the diameter of the sliding tube 401. The baffle 6 can limit the guide rod 402 to prevent the guide rod 402 from entering the interior of the casing 1.

[0027] See also Figure 3 Two positioning rings 303 are fixedly installed on the outer surface of the rotating shaft 301. The side surfaces of the two positioning rings 303 close to each other are fixedly installed on the front side of the connecting gear 302 and the back side of the connecting gear 302 respectively. The positioning rings 303 can be used to position the connecting gear 302 to prevent the connecting gear 302 from sliding and loosening.

[0028] See also Figure 1 A rubber strip 5 is fixedly installed on the front and back of the casing 1, a fixing seat 7 is fixedly installed on the outer surface of the conduit 201, and the left side of the fixing seat 7 is fixedly installed on the inner wall of the casing 1. The rubber strip 5 can increase the surface friction of the casing 1 to prevent the hand from slipping during use.

[0029] The implementation principle of the spring coil positioning device for CT guidance before minimally invasive surgery for lung nodules in the embodiment of the present application is: when in use, the device is punctured through the puncture head 202 and the catheter 201, and then the rotating wheel 307 is rotated to make the rotating wheel 307 drive the rotating rod 306 to rotate, and the rotating rod 306 drives the second bevel gear 304 to rotate, so that the second bevel gear 304 drives the first bevel gear 305, and the first bevel gear 305 synchronously drives the connecting gear 302 to rotate through the rotating shaft 301, so that the connecting gear 302 can use the tooth plate 406 to drive the guide rod 402 to move, so that the guide rod 402 can move horizontally under the action of the guide groove 404 and the slide bar 405, so that the guide rod 402 can slowly push the spring coil body 203 out.

[0030] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0031] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A coil positioning device for CT guidance before minimally invasive surgery for pulmonary nodules, comprising a housing (1), characterized in that: A puncture assembly (2) is provided on the left side of the housing (1), a control assembly (4) is provided on the right side of the housing (1), and a drive assembly (3) is provided inside the housing (1). The drive assembly (3) includes a rotating shaft (301) rotatably mounted via a bearing, a connecting gear (302) is fixedly mounted on the outer surface of the rotating shaft (301), and a first bevel gear (305) is fixedly mounted on the outer surface of the rotating shaft (301).

2. The CT-guided coil positioning device for minimally invasive pulmonary nodule surgery according to claim 1, characterized in that: The puncture assembly (2) comprises a catheter (201) mounted on the left side of the housing (1), a spring coil body (203) is provided inside the catheter (201), and a puncture head (202) is fixedly mounted on the left end of the catheter (201).

3. The CT-guided coil positioning device for minimally invasive pulmonary nodule surgery according to claim 2, characterized in that: A rotating rod (306) is rotatably mounted on the upper surface of the housing (1) via a bearing, a second bevel gear (304) is fixedly mounted on the bottom end of the rotating rod (306), the second bevel gear (304) is meshed with the first bevel gear (305), a rotating wheel (307) is fixedly mounted on the top end of the rotating rod (306), and the rotating shaft (301) is located on the right side of the conduit (201).

4. The CT-guided coil positioning device for minimally invasive pulmonary nodule surgery according to claim 3, characterized in that: The control assembly (4) comprises a slide tube (401) mounted on the right side of the housing (1), a guide rod (402) being slidably mounted on the inner wall of the slide tube (401), and two guide grooves (404) are formed on the outer surface of the guide rod (402).

5. The CT-guided coil positioning device for preoperative minimally invasive surgery of pulmonary nodules according to claim 4, characterized in that: A baffle (6) is provided on the right side of the guide rod (402), the left side of the baffle (6) is fixedly mounted to the right side of the guide rod (402), and the diameter of the baffle (6) is greater than the diameter of the slide tube (401).

6. The CT-guided coil positioning device for minimally invasive pulmonary nodule surgery according to claim 1, characterized in that: Two positioning rings (303) are fixedly mounted on the outer surface of the rotating shaft (301), and the side surfaces of the two positioning rings (303) close to each other are fixedly mounted on the front side of the connecting gear (302) and the back side of the connecting gear (302) respectively.

7. The CT-guided coil positioning device for preoperative minimally invasive surgery of pulmonary nodules according to claim 1, characterized in that: A rubber strip (5) is fixedly mounted on the front and back of the casing (1), a fixing seat (7) is fixedly mounted on the outer surface of the conduit (201), and the left side of the fixing seat (7) is fixedly mounted on the inner side wall of the casing (1).

8. The CT-guided coil positioning device for preoperative minimally invasive pulmonary nodule surgery according to claim 4, characterized in that: A slide bar (405) is slidably mounted on the inner wall of each guide groove (404), and the ends of the two slide bars (405) that are away from each other are fixedly mounted on the inner wall of the slide tube (401). A flat groove (403) is provided on the upper surface of the guide rod (402), and a tooth plate (406) is fixedly mounted on the upper surface of the flat groove (403), and the tooth plate (406) is meshed with the connecting gear (302).

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