CN210811592U - Bilateral positioning instrument for pulmonary nodules - Google Patents
Bilateral positioning instrument for pulmonary nodules Download PDFInfo
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- CN210811592U CN210811592U CN201921532281.XU CN201921532281U CN210811592U CN 210811592 U CN210811592 U CN 210811592U CN 201921532281 U CN201921532281 U CN 201921532281U CN 210811592 U CN210811592 U CN 210811592U
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Abstract
The utility model discloses a bilateral locator for pulmonary nodules, which comprises an anchoring front end part suitable for anchoring in the pulmonary nodule, a telescopic middle section suitable for being anchored in the pulmonary nodule, a position mark rear end part suitable for being anchored in the pulmonary nodule, a telescopic middle section suitable for stretching along with respiratory motion of pulmonary tissues when the anchoring front end part is anchored in the pulmonary nodule, and a telescopic middle section suitable for being anchored in the pulmonary nodule, wherein the position mark rear end part is arranged outside the lung to find the anchoring front end part and the position mark rear end part; wherein the anchoring front end part and the position mark rear end part are made of shape memory alloy materials. The utility model discloses not only can realize making things convenient for the purpose of lung nodule location and excision, improve its anchoring effect moreover.
Description
Technical Field
The utility model relates to a two side positioning instrument of lung nodule, two side positioning instrument of lung nodule are applied to and fix a position the excision lung nodule to the doctor carries out early diagnosis treatment to lung cancer.
Background
At present, the morbidity and mortality of lung cancer are in the top of the leaderboard of cancer, and because early lung cancer is hidden and difficult to find, 80% of lung cancer found in clinic belongs to middle and late stages, how to find and treat lung cancer as early as possible is of great importance for improving the survival probability of lung cancer patients. Through clinical research and analysis, the cure rate of the in-situ lung cancer is close to 100 percent, and the cure success rate is very high when the diameter of the lung nodule is less than or equal to 10 mm. The early detection of the lung cancer in situ small nodule is a key point at present, because the lung small nodule is small in size, small in solid components and soft in texture, 54-63% of the lung small nodule in the VATS operation cannot be accurately positioned by an observation or palpation method, and the operation failure rate is high. Especially, when the accurate resection is found, experts in large hospitals want to perform resection after accurately positioning the pulmonary nodules by various methods, but all have certain defects, and the following 6 methods are temporary methods currently adopted by doctors but are not methods or means specially adopted for positioning the pulmonary nodules.
1. Methylene blue localization method
Aqueous methylene blue solutions exhibit a blue color in an oxidizing environment and are commonly used as chemical indicators, dyes, biological stains, and pharmaceuticals. The dye can quickly identify the area covered by a target nodule, has no influence on the grabbing and palpation of instruments, completes preliminary positioning through CT simulation before an operation, injects methylene blue around a focus according to a puncture site, an angle and a depth marked before the operation after anesthesia, transfers to an operating room for operation after successful positioning, and completes the operation according to dyeing positioning under a thoracoscope. However, in practical operation, the methylene blue still has some defects, on one hand, the methylene blue has a fast dispersion speed, and a clinician is often required to perform thoracoscopic surgery within 3 hours after injection positioning, which has a certain influence on the surgical arrangement and engagement. On the other hand, the characteristics of easy diffusion and interference make the lung surface positioning area larger, which results in the enlargement of the lung resection range.
2. Positioning method for iodine oil and iodine-containing contrast agent
Iodine oil is a cheap and readily available contrast agent which, after injection into the body, absorbs more X-rays than the surrounding tissue, making visualization more satisfactory, and which also excretes faster and stays in the body for a shorter period of time than barium. The diffusion speed of the iodine oil is slower than that of methylene blue, the development area is stable, the positioning accuracy is high, meanwhile, the retention time in the lung is long, the connection time between a positioning room and an operating room is relatively wide, although the iodine oil radiography has many advantages, some defects exist in the clinical application process, such as the risk of pulmonary artery embolism, and some reports suggest that the method is easy to cause the inflammatory reaction of the positioned tissue, even pneumonia. Since positioning of the iodine oil requires the operating physician to operate under fluoroscopy, it also limits the use of iodine agent positioning in the clinic. In addition, patients with hyperthyroidism, thyroid tumors, severe centers of gravity, liver, lung disease, acute bronchitis and fever should also be cautious.
3. Hook-wire positioning
The operation principle is that a slender metal wire with the front end bent in a hook shape is positioned for the first time through low-dose thin-layer CT scanning, after the slender metal wire enters the thoracic cavity through trocar percutaneous puncture and reaches a focus or the periphery of the focus, the tip inclined plane of the sleeve barrel faces the focus direction, the metal wire is released and the trocar is recovered, and the front section of the metal wire is unfolded in a hook shape and fixed around the nodule. However, the tendency of the wire to shift and even fall off is a major cause of Hook-wire positioning failure. If the insertion distance is less than 5 mm from the pleural surface, the risk of displacement is increased, meanwhile, the movement of the patient is not limited after positioning, and the patient cannot be transferred as soon as possible to perform the operation due to the turnover problem of the operating room, and the risk of displacement and falling is also a high-risk factor. Secondly, the patient is prone to have common complications such as pneumothorax, bleeding and pain after positioning.
4. Computer assisted surgery techniques
The operation principle is that CT data of a patient are led into a navigator computer, the computer carries out image reconstruction and puncture route simulation, a three-dimensional space coordinate system of the chest of the patient is overlapped with a three-dimensional coordinate system of a CT image according to the body position so as to determine the needle inserting direction and the depth of a puncture needle, and special equipment and instruments are needed in the specific implementation process, so that the method is limited to be widely applied clinically.
5. Electromagnetic navigation bronchoscope guiding technology
Electromagnetic Navigation Bronchoscope (ENB) is a new minimally invasive diagnostic technique that has emerged in recent years. The ENB guide mark is used for marking isolated lung nodules and is widely applied to VATS preoperative positioning. ENB-guided placement of coil spring fiducial markers has better retention rates and lower incidence of complications compared to linear fiducial markers.
6. Radioisotope
The radionuclide has a long half-life, and the area of the radionuclide can be determined by tracing with a detector. By virtue of the characteristics of the radioactive nuclide particles, the radioactive nuclide particles can be clinically positioned by being injected around the lung lesion through percutaneous puncture under the guidance of CT. This method is accurate for locating shallower lesions, but the equipment requirements are special, expensive, and radiation hazards exist, surgeons and radiologists may be exposed to radiation, and the localization of deeper lung nodules is ambiguous, limiting its clinical use.
These are all temporary measures taken for resection of pulmonary nodules, which are not products for localization of pulmonary nodules and present ethical risks in the clinic. The existing disposable pulmonary nodule locating needle specially used for locating and excising pulmonary nodule is characterized in that the front end of the structure is a stainless steel anchor hook, a suture is fixed with an anchor rear end tube, the anchor hook is arranged at the position of the nodule during use, and the suture is left outside the chest wall. The operation is to cut off the small pulmonary nodule by pulling the external suture to find the positioning position. This product is localized at the pulmonary nodules while the sutures remain outside the body. Because the operation cannot be performed immediately after the positioning, the positioning is pulled against the lung due to the factors of the patient such as movement, breathing and cough in the waiting operation process, the bad consequences such as pneumothorax and falling off can be caused by the pulling of the external line, and the risk of the operation is increased.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a two side location apparatus of lung nodule, it not only can realize making things convenient for the purpose of lung nodule location and excision, has improved its anchoring effect moreover.
In order to solve the technical problem, the technical scheme of the utility model is that: a pulmonary nodule bilateral positioning instrument comprising:
an anchoring nose portion adapted to be anchored within a pulmonary nodule;
a location-identifying posterior end adapted to be left outside the lung for finding the anchoring anterior end while it is anchored within the pulmonary nodule;
a telescoping middle section connecting the anchoring front end portion and the position marker rear end portion and adapted to telescope with lung tissue breathing motion when the anchoring front end portion is anchored within a pulmonary nodule;
wherein the anchoring front end part and the position mark rear end part are made of shape memory alloy materials.
Furthermore, the flexible middle section is in a spring shape formed by winding a spring wire.
Further, the anchoring front end part and the position mark rear end part are both obtained by winding a single shape memory alloy wire.
Further, the anchoring front end portion and/or the position indication rear end portion is a single-turn or multi-turn spiral structure.
Further, the winding diameter of the anchoring front end portion gradually increases from front to back.
Further, the telescopic middle section is in a spring shape formed by winding a spring wire;
further, the anchoring front end part and the position mark rear end part are obtained by winding a single shape memory alloy wire;
further, the diameter of the shape memory alloy wire is larger than that of the spring wire.
Furthermore, the telescopic middle section, the anchoring front end part connected to the two ends of the telescopic middle section and the position mark rear end part are connected to form a dumbbell shape.
Furthermore, the shape memory alloy is made of nickel-titanium alloy, Ti-Nb alloy or Ni-Al alloy.
Further, the anchoring front end part and the position mark rear end part are respectively welded or crimped at two ends of the telescopic middle section.
Furthermore, the telescopic middle section (3) is made of shape memory alloy materials or non-shape memory alloy materials.
The utility model also provides a manufacturing method of the bilateral positioning instrument for the pulmonary nodules, which comprises the following steps:
respectively preparing an anchoring front end part, a position mark rear end part and a telescopic middle section; the anchoring front end part and the position mark rear end part are respectively formed by winding a single shape memory alloy wire and then shaping in a temperature environment, and the telescopic middle section is formed by winding a spring wire;
and the front anchoring end part and the rear position mark end part which are positioned at the two ends of the telescopic middle section are connected by adopting the telescopic middle section.
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
1. the utility model discloses in, tip is used for operation CT to observe and confirms the location accuracy of lung nodule and plays the anchoring effect simultaneously before the anchoring to find lung nodule and cut into slices the processing after the postoperative, flexible middle section is used for following lung tissue respiratory motion and stretches out and draws back, and position sign rear end is used for finding the rear end of lung nodule smoothly according to it after the operation excision and the position of finding the positioning instrument under the operation endoscope, adopts the utility model discloses a two side positioning instrument of lung nodule go to fix a position the lung nodule, realizes making things convenient for the purpose of lung nodule location and excision, has improved its anchoring effect moreover.
2. The utility model discloses a flexible middle section can adopt ordinary material to prepare into the spring form, tip adopts single shape memory alloy silk coiling high temperature mode of stereotyping again behind tip and the position sign before the anchoring at both ends, adopt the components of a whole that can function independently to make, the mode that links to each other again, the preparation process has been simplified, tip and position sign back tip intensity obviously increase before the anchoring at both ends, the elasticity in flexible middle section has both been satisfied like this, can strengthen the anchoring power at positioning instrument both ends again, make it be difficult for droing, can also satisfy the demand of product mass production simultaneously.
3. The anchoring front end part adopts a multi-circle spiral structure, so that the radiopaque reflection area is increased, a doctor can conveniently and quickly find the anchoring front end part under CT to determine whether the positioning is accurate, meanwhile, due to the limitation of the inner diameter of the puncture needle, the gradually-changed spiral shape in the placement hole after the puncture needle is unfolded is required to be designed, meanwhile, the cross-section contact area vertical to the puncture direction is increased, compared with a linear structure, the anchoring effect is improved, and the displacement or falling off of a product caused by the respiratory movement of the lung is prevented.
4. The position marker rear end has three functions: 1. the cross-sectional contact area perpendicular to the puncture direction is increased, compared with a linear structure, the anchoring effect is improved, and the displacement of a product caused by lung breathing motion is prevented; 2. the observation of doctors under the operation endoscope is convenient; 3. the doctor can conveniently find the lung nodule according to the rear end of the product after surgical excision to carry out pathological analysis.
5. Owing to adopt shape memory alloy spring to need high temperature to finalize the design, it is difficult to realize mechanization to wind the process of putting, the utility model discloses a flexible middle section adopts non-shape memory alloy material to make, specifically adopts ordinary stainless steel, and simple manufacture can realize industrial production.
Drawings
FIG. 1 is a schematic structural view of a bilateral pulmonary nodule locating apparatus of the present invention;
fig. 2 is a schematic structural view of the anchoring nose portion of the present invention;
FIG. 3 is a schematic structural view of the rear end of the position mark of the present invention;
fig. 4 is a schematic structural view of the telescopic middle section of the present invention;
fig. 5 is a diagram illustrating the use of the bilateral pulmonary nodule locating apparatus of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1-5, a bilateral pulmonary nodule locating apparatus comprises:
an anchoring nose portion 1 adapted to be anchored within a pulmonary nodule;
a position-identifying posterior end 2 adapted to be left outside the lung for finding said anchoring anterior end 1 when anchored within the pulmonary nodule;
a telescopic middle section 3 connecting the anchoring front end part 1 and the position mark rear end part 2 and adapted to be telescopic along with lung tissue breathing movement when the anchoring front end part 1 is anchored in a pulmonary nodule;
wherein, the anchoring front end part 1 and the position mark rear end part 2 are made of shape memory alloy materials.
The embodiment of the utility model provides an in, anchoring front end portion 1 is used for operation CT to observe and confirms the location accuracy of bar of pulmonary nodules and plays anchoring effect simultaneously to and be used for the postoperative to look for the bar of pulmonary nodules and carry out the section processing, flexible middle section 3 is used for following lung tissue respiratory motion and stretches out and draws back, and position sign rear end portion 2 is used for finding the position of location apparatus under the operation mirror and finds the rear end of bar of pulmonary nodules smoothly according to it after the operation excision, adopts the utility model discloses the two side location apparatus of bar of pulmonary nodules goes to fix a position the bar of pulmonary nodules, realizes making things convenient for the purpose of bar of pulmonary nodules location and excision, has improved its anchoring effect moreover.
Specifically, the telescopic middle section 3 is in a spring shape formed by winding a spring wire. The telescopic middle section 3 is made of non-shape memory alloy materials. Owing to adopt shape memory alloy spring to need high temperature to finalize the design, it is difficult to realize mechanization to wind the process of putting, the utility model discloses a flexible middle section 3 adopts non-shape memory alloy material to make, specifically adopts ordinary stainless steel material, and simple manufacture can realize industrial production.
Of course, the telescopic middle section 3 in the embodiment of the present invention may also be made of shape memory alloy material.
The utility model discloses a flexible middle section 3 can adopt common material to prepare into the spring form, tip 1 adopts single shape memory alloy silk coiling high temperature mode of stereotyping again behind the anchoring at both ends and the position sign, adopt the components of a whole that can function independently to make, the mode that links to each other again, the preparation process has been simplified, tip 1 and position sign rear end 2 intensity obviously increase before the anchoring at both ends, the elasticity in flexible middle section has both been satisfied like this, can strengthen the anchoring force at positioning instrument both ends again, make it be difficult for droing, can also satisfy the demand of product mass production simultaneously.
Specifically, the anchoring front end part 1 and the position mark rear end part 2 are respectively obtained by winding a single shape memory alloy wire.
Specifically, the anchoring front end portion 1 and the position indication rear end portion 2 are in a single-turn or multi-turn spiral structure.
In the embodiment of the present invention, as shown in fig. 1, the anchoring front end portion 1 may adopt a multi-turn spiral structure, and the position indication rear end portion 2 may adopt a single-turn spiral structure.
The anchoring front end part 1 adopts a multi-turn spiral structure, so that the radiopaque reflection area is increased, a doctor can conveniently and quickly find the anchoring front end part under CT to determine whether the positioning is accurate, meanwhile, due to the limitation of the inner diameter of the puncture needle, the gradually-changed spiral shape in the placement hole after the puncture needle is unfolded is required to be designed, meanwhile, the cross-section contact area vertical to the puncture direction is increased, compared with a linear structure, the anchoring effect is improved, and the displacement or falling off of a product caused by respiratory movement of the lung is prevented.
Specifically, as shown in fig. 2, the winding diameter of the anchoring front end portion 1 gradually increases from front to back.
The position indication rear end 2 has three functions: 1. the cross-sectional contact area perpendicular to the puncture direction is increased, compared with a linear structure, the anchoring effect is improved, and the displacement of a product caused by lung breathing motion is prevented; 2. the observation of doctors under the operation endoscope is convenient; 3. the doctor can conveniently find the lung nodule according to the rear end of the product after surgical excision to carry out pathological analysis.
The diameter of the shape memory alloy wire is larger than that of the spring wire, preferably the diameter of the shape memory alloy wire can be 5-6 times of that of the thick spring wire, the range of the spiral diameter after the anchoring front end part 1 and the position mark rear end part 2 are molded is not limited, the anchoring effect is achieved in principle, meanwhile, the diameter cannot be too large, and the excessive lung tissue resection is avoided;
the wire diameter of the anchoring front end part 1 and the position identification rear end part 2 is reasonable: the product needs to be unfolded and placed in the puncture needle tube, and the thinner and better needle tube is adopted in principle to penetrate the lung tissue, so that the probability of bad conditions such as pneumothorax is reduced, and the requirement of anchoring property is met.
Specifically, as shown in fig. 1, the telescopic middle section 3, and the anchoring front end portion 1 and the position indication rear end portion 2 connected to both ends of the telescopic middle section 3 are connected to form a dumbbell shape.
Specifically, the shape memory alloy material may be a nickel titanium alloy or a Ti-Nb alloy or a Ni-Al alloy, but is not limited thereto.
Specifically, the anchoring front end portion 1 and the position indication rear end portion 2 are respectively welded or crimped to two ends of the telescopic middle section 3.
The utility model discloses a manufacturing method of two side localization apparatus of lung nodule, contain in the step of the method:
respectively preparing an anchoring front end part 1, a position mark rear end part 2 and a telescopic middle section 3; the anchoring front end part 1 and the position mark rear end part 2 are respectively formed by winding a single shape memory alloy wire and then shaping in a temperature environment, and the telescopic middle section 3 is formed by winding a spring wire;
the front anchoring end part 1 and the rear position mark end part 2 which are positioned at the two ends of the telescopic middle section 3 are connected by adopting the telescopic middle section 3.
Specifically, the two ends of the anchoring front end part 1 and the position mark rear end part 2 are shaped by placing wires in a die cavity or a pipeline similar to the shape of a product, and the wires are required to be soft at normal temperature after being shaped, and to recover the memory shape after exceeding 30 ℃ and have superelasticity.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A pulmonary nodule bilateral positioning instrument comprising:
an anchoring nose portion (1) adapted to be anchored within a pulmonary nodule;
a position-identifying rear end (2) adapted to be left outside the lung for finding said anchoring front end (1) when anchored within the pulmonary nodule;
a telescopic middle section (3) connecting the anchoring front end part (1) and the position mark rear end part (2) and being suitable for stretching along with the respiratory movement of lung tissues when the anchoring front end part (1) is anchored in a pulmonary nodule;
wherein the anchoring front end part (1) and the position mark rear end part (2) are made of shape memory alloy materials.
2. The bilateral pulmonary nodule localization instrument of claim 1,
the telescopic middle section (3) is in a spring shape formed by winding spring wires.
3. The bilateral pulmonary nodule localization instrument of claim 1,
the anchoring front end part (1) and the position mark rear end part (2) are obtained by winding a single shape memory alloy wire.
4. The bilateral pulmonary nodule localization instrument of claim 3,
the anchoring front end part (1) and/or the position mark rear end part (2) are in a single-turn or multi-turn spiral structure.
5. The bilateral pulmonary nodule localization instrument of claim 4,
the winding diameter of the anchoring front end part (1) is gradually increased from front to back.
6. The bilateral pulmonary nodule localization instrument of claim 1,
the telescopic middle section (3) is in a spring shape formed by winding a spring wire;
the anchoring front end part (1) and the position mark rear end part (2) are obtained by winding a single shape memory alloy wire;
the diameter of the shape memory alloy wire is larger than that of the spring wire.
7. The bilateral pulmonary nodule localization instrument of claim 1,
the telescopic middle section (3) and the anchoring front end part (1) and the position mark rear end part (2) which are connected to the two ends of the telescopic middle section (3) are connected to form a dumbbell shape.
8. The bilateral pulmonary nodule localization instrument of claim 1,
the shape memory alloy is made of nickel-titanium alloy or Ti-Nb alloy or Ni-Al alloy.
9. The bilateral pulmonary nodule localization instrument of claim 1,
the anchoring front end part (1) and the position mark rear end part (2) are respectively welded or pressed at two ends of the telescopic middle section (3).
10. The bilateral pulmonary nodule localization instrument of claim 1,
the telescopic middle section (3) is made of shape memory alloy materials or non-shape memory alloy materials.
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| CN201921532281.XU CN210811592U (en) | 2019-09-16 | 2019-09-16 | Bilateral positioning instrument for pulmonary nodules |
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| CN201921532281.XU CN210811592U (en) | 2019-09-16 | 2019-09-16 | Bilateral positioning instrument for pulmonary nodules |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507424A (en) * | 2019-09-16 | 2019-11-29 | 江苏诺瑞思医疗器械有限公司 | Small pulmonary artery bilateral locating apparatus and its manufacturing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507424A (en) * | 2019-09-16 | 2019-11-29 | 江苏诺瑞思医疗器械有限公司 | Small pulmonary artery bilateral locating apparatus and its manufacturing method |
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Commission number: 5W128670 Conclusion of examination: On the basis of claims 1 to 4 submitted by the patentee on August 19, 2022, the utility model patent right 201921532281. X is maintained valid Decision date of declaring invalidation: 20230105 Decision number of declaring invalidation: 60041 Denomination of utility model: Bilateral positioning instruments for pulmonary nodules Granted publication date: 20200623 Patentee: JIANGSU NRS MEDICAL INSTRUMENT Co.,Ltd. |