A multifunctional preoperative precise positioning device suitable for multiple organs

Abstract

The present invention provides a multifunctional preoperative precise locator suitable for multiple organs, comprising a guide system and a positioning system. The guide system comprises a guide needle, a guide needle handle, a scale line, a rubber limiter, a sharp-tip needle core and a blunt-tip needle core. The tail end of the guide needle is connected to the guide needle handle. The positioning system comprises a micro-spring coil tube, a push rod buckle, a push rod, a push rod handle, a micro-spring coil, a tail line and a semi-push mark. The interior of the guide needle can be adapted to the micro-spring coil tube. The present invention improves the safety and ease of preoperative positioning for resection of small nodules in various organs in the body, broadens the guidance equipment for preoperative positioning: ultrasound, CT, PET / CT and MRI are all applicable, and the application range of preoperative positioning is significantly improved. The positioning accuracy is significantly improved, the surgical resection range can be accurately guided, and the remaining anatomical structure and function of the patient's resected organs are maximized.

Description

Technical Field

[0001] The present invention belongs to the field of medical technology, and in particular is a multifunctional pre-operative precise locator suitable for multiple organs. Background Art

[0002] With the popularization of national physical examinations and the development of examination equipment, more and more subtle lesions in the human body are being detected, such as small lung nodules, small liver nodules, and early gastrointestinal lesions. This has greatly improved the early diagnosis and treatment of lesions. However, there are more and more subtle lesions that cannot be characterized or require early surgical intervention. In addition, precision surgery requires the complete removal of the target lesion while ensuring the integrity of the remaining anatomical structure and maximizing the functional volume. This has led to an increasing demand for precise positioning of small nodules before surgery. Currently, there are many methods and means for preoperative positioning of small lung nodules, liver and kidney nodules, gastrointestinal tract, intracranial, and breast tumors. These mainly involve percutaneous, transluminal, and digestive tract localization under the guidance of CT, ultrasound, or endoscopic imaging, using puncture positioning needles, hookwire needles, microcoils, indocyanine green fluorescent agents, or dyes such as India ink, indigo, and methylene blue. Each has certain advantages and disadvantages. For example, preoperative localization needles for small lung nodules cannot avoid damaging blood vessels; preoperative localization of the lungs, liver, and gastrointestinal tract with indocyanine green fluorescent agents requires special and expensive detection equipment; intraoperative ultrasound localization of small liver nodules requires high sterility and intraoperative cooperation requirements; or dyes can cause allergic reactions, have a low time tolerance (≤24h / 48h), and are easily contaminated.

[0003] The tower-shaped micro-coils used for conventional medical vascular embolization have good compatibility with human tissue, are generally not easy to fall off, have no obvious irritation symptoms, can exist in human tissue for a long time, and there is no worry or risk of surgical scheduling. Due to its high safety, stability, comfort, and tolerance for surgical time, its application before thoracoscopic lung nodule resection has been increasing in recent years. However, the micro-coils currently used are tower-shaped and can be used for positioning and identifying lung tissue, but are not very suitable for fixation or identification in liver tissue and gastrointestinal walls, and their factory indications are limited to vascular embolization use. There are legal risks of off-label use in lung tissue. In addition, the needle tip of the image-guided percutaneous puncture guide needle is sharp, and it is impossible to avoid damage to blood vessels and complications along the needle tip path!

[0004] In summary, there is currently no medical device that can be widely used for preoperative image-guided percutaneous puncture positioning of small nodules in multiple organs such as the lungs, liver, kidneys, and gastrointestinal tract. Therefore, the present invention provides a multifunctional preoperative precise locator suitable for multiple organs to solve the above problems. Summary of the Invention

[0005] To address the aforementioned technical issues, the present invention provides a multifunctional, multi-organ, preoperative precision locator. This addresses the existing problem of microcoils currently used being tower-shaped, suitable for locating and identifying lung tissue, but less suitable for fixation or identification in liver tissue and the gastrointestinal tract. Furthermore, their factory indications are limited to vascular embolization, posing legal risks for off-label use in lung tissue. Furthermore, the sharp tip of image-guided percutaneous puncture guide needles inevitably leads to problems such as vascular damage and complications along their path.

[0006] A multifunctional preoperative precision locator suitable for multiple organs, comprising a guide system and a positioning system, wherein the guide system comprises a guide needle, a guide needle handle, graduation lines, a rubber stopper, a sharp-tipped needle core, and a blunt-tipped needle core; the tail end of the guide needle is connected to the guide needle handle; the outer wall of the guide needle is provided with graduation lines; the surface of the guide needle is sleeved with a rubber stopper; a sharp-tipped needle core passes through the interior of the guide needle; the tail end of the sharp-tipped needle core is connected to the sharp-tipped needle core handle; a blunt-tipped needle core passes through the interior of the guide needle; the tail end of the blunt-tipped needle core is connected to the blunt-tipped needle core handle;

[0007] The positioning system is divided into a hollow core push positioning micro spring coil system and a solid core push positioning micro spring coil system. The hollow core push positioning micro spring coil system includes a first micro spring coil tube, a first push rod buckle, a hollow core push rod, a hollow core push rod handle, a first micro spring coil, a tail line and a hollow core semi-push mark. The interior of the guide needle can be adapted to connect with the first micro spring coil tube. The tail end of the first micro spring coil tube is connected with the first push rod buckle. The interior of the first micro spring coil tube is connected with a hollow core push rod. The tail end of the hollow core push rod is connected with a hollow core push rod handle. The head end of the first micro spring coil tube is internally connected with the first micro spring coil. The tail end of the first micro spring coil A tail line is connected, and a hollow semi-push mark is connected to the surface of the hollow push rod. The solid push positioning micro-spring coil system includes a second micro-spring coil tube, a second push rod buckle, a solid push rod, a solid push rod handle, a second micro-spring coil and a solid semi-push mark. The interior of the guide needle can be adaptably connected to the second micro-spring coil tube, the tail end of the second micro-spring coil tube is connected to the second push rod buckle, the interior of the second micro-spring coil tube is connected to the solid push rod, the tail end of the solid push rod is connected to the solid push rod handle, the interior of the second micro-spring coil tube is implanted with a second micro-spring coil, and the surface of the solid push rod is connected to the solid semi-push mark.

[0008] Preferably, the outer sheath tip of the guide needle is a blunt frosted structure, the guide needle is a hollow structure, and the surface dimensions of the sharp-tip needle core and the blunt-tip needle core are adapted to the internal dimensions of the guide needle.

[0009] Preferably, the guide needle handle, the sharp-tip core needle handle and the blunt-tip core needle handle are all made of plastic, and the rubber limiter can be used to mark the needle insertion depth.

[0010] Preferably, the interior of the guide needle is connected to a second micro-spring coil tube, the tail end of the second micro-spring coil tube is connected to a second push rod buckle, the interior of the second micro-spring coil tube is connected to a solid push rod, the tail end of the solid push rod is connected to a solid push rod handle, the interior of the second micro-spring coil tube is implanted with a second micro-spring coil, and the surface of the solid push rod is connected to a solid semi-push mark.

[0011] Preferably, the first microspring coil tube and the second microspring coil tube are both hollow structures. After the first microspring coil tube and the second microspring coil tube are inserted into the guide needle, the head ends of the first microspring coil tube and the second microspring coil tube are flush with the head end of the guide needle, and the outer tube diameter of the first microspring coil tube and the second microspring coil tube is smaller than the inner diameter of the guide needle.

[0012] Preferably, the first microspring coil tube and the second microspring coil tube form a linear structure with the first microspring coil and the second microspring coil respectively.

[0013] Preferably, the tail wire is of medical sterile type and is located in a hollow push rod. After the hollow push rod is fully inserted into the first micro spring coil tube, the head end of the hollow push rod is flush with the head end of the first micro spring coil tube.

[0014] Preferably, the first push rod buckle and the second push rod buckle respectively form an elastic snap-fit ​​structure with the hollow push rod and the solid push rod.

[0015] Preferably, spindle-shaped micro spring coils may be implanted in the head ends of the first micro spring coil tube and the second micro spring coil tube, respectively.

[0016] Preferably, a first twin-tower microspring coil and a second twin-tower microspring coil may be implanted in the head ends of the first microspring coil tube and the second microspring coil tube, respectively, and a tail wire is connected to the tail end of the first twin-tower microspring coil.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The innovative preoperative precise locator of the present invention aims to improve the safety and ease of preoperative positioning of small nodules in various organs in the body, and broaden the guidance equipment for preoperative positioning: ultrasound, CT, PET / CT and MRI are all applicable. Preoperative positioning can be applied to the lungs, liver, kidneys, gastrointestinal tract, brain, breast, etc., which significantly improves the accuracy of positioning. For example, it can be used not only for wedge resection of lung nodules, but also for positioning before lung subsegment and lung segment resection, accurately guiding the surgical resection range, and can also be used for preoperative puncture positioning of liver, kidney, gastrointestinal tract, and small intracranial lesions, more accurately guiding the surgical resection range, and maximizing the remaining anatomical structure and function of the patient's resected organs, which can significantly improve the success rate and safety of preoperative positioning, while reducing the economic burden of patients and improving their comfort; it is also conducive to promoting and popularizing the application of preoperative image-guided precise positioning and further improving the accuracy of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the guide needle structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the sharp needle core structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the blunt needle core structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the hollow push rod structure of the present invention;

[0023] Figure 5 1 is a schematic structural diagram of the first micro spring coil tube of the present invention;

[0024] Figure 6 This is a schematic diagram of the hollow semi-push sign structure of the present invention;

[0025] Figure 7 Schematic diagram of the spindle-shaped micro spring coil structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the first double-tower micro spring coil of the present invention;

[0027] Figure 9 This is a schematic diagram of the solid push rod structure of the present invention;

[0028] Figure 10 1 is a schematic structural diagram of a second micro spring coil tube according to the present invention;

[0029] Figure 11 This is a schematic diagram of the solid core half-push sign structure of the present invention;

[0030] Figure 12 Schematic diagram of the second double-tower micro spring coil structure of the present invention;

[0031] Figure 13 It is a schematic diagram of the buckle connection structure of the push rod of the present invention.

[0032] In the picture:

[0033] 1. Guide needle; 2. Guide needle handle; 3. Scale line; 4. Rubber limiter; 5. Sharp needle core; 501, blunt needle core; 6. Sharp needle core handle; 601, blunt needle core handle; 7. First microspring coil tube; 701, second microspring coil tube; 8. First push rod buckle; 801, second push rod buckle; 9. Hollow push rod; 901, solid push rod; 10. Hollow push rod handle; 1001, solid push rod handle; 11. First microspring coil; 1101, second microspring coil; 12. Tail wire; 13. Hollow half-push mark; 1301, solid half-push mark; 14. Spindle-shaped microspring coil; 15. First twin-tower microspring coil; 1501, second twin-tower microspring coil. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0035] like Figure 1-13 As shown, the present invention provides a multifunctional preoperative precision locator suitable for multiple organs, including a guide system and a positioning system. The guide system includes a guide needle 1, a guide needle handle 2, a scale line 3, a rubber stopper 4, a sharp needle core 5 and a blunt needle core 501. The tail end of the guide needle 1 is connected to the guide needle handle 2, the outer wall of the guide needle 1 is provided with a scale line 3, the surface of the guide needle 1 is sleeved with a rubber stopper 4, the interior of the guide needle 1 is penetrated by a sharp needle core 5, the tail end of the sharp needle core 5 is connected to a sharp needle core handle 6, the interior of the guide needle 1 is penetrated by a blunt needle core 501, and the tail end of the blunt needle core 501 is connected to a blunt needle core handle 601;

[0036] The positioning system is divided into a hollow core push positioning micro spring coil system and a solid core push positioning micro spring coil system. The hollow core push positioning micro spring coil system includes a first micro spring coil tube 7, a first push rod buckle 8, a hollow core push rod 9, a hollow core push rod handle 10, a first micro spring coil 11, a tail line 12 and a hollow core semi-push mark 13. The interior of the guide needle 1 can be adapted to connect with the first micro spring coil tube 7. The tail end of the first micro spring coil tube 7 is connected with the first push rod buckle 8. The interior of the first micro spring coil tube 7 is connected with the hollow core push rod 9. The tail end of the hollow core push rod 9 is connected with the hollow core push rod handle 10. The head end of the first micro spring coil tube 7 is internally connected with the first micro spring coil 11. The tail end of the first micro spring coil 11 is connected with the tail line 12. The surface of the hollow core push rod 9 It is connected to a hollow semi-push mark 13, and the solid push positioning micro-spring coil system includes a second micro-spring coil tube 701, a second push rod buckle 801, a solid push rod 901, a solid push rod handle 1001, a second micro-spring coil 1101 and a solid semi-push mark 1301. The interior of the guide needle 1 can be adaptably connected to the second micro-spring coil tube 701, the tail end of the second micro-spring coil tube 701 is connected to the second push rod buckle 801, the interior of the second micro-spring coil tube 701 is connected to the solid push rod 901, the tail end of the solid push rod 901 is connected to the solid push rod handle 1001, the interior of the second micro-spring coil tube 701 is implanted with a second micro-spring coil 1101, and the surface of the solid push rod 901 is connected to the solid semi-push mark 1301.

[0037] Please refer to Figure 1 The outer sheath tip of the guide needle 1 is a blunt frosted structure, the guide needle 1 is a hollow structure, and the surface dimensions of the sharp needle core 5 and the blunt needle core 501 are adapted to the internal dimensions of the guide needle 1.

[0038] Please refer to Figure 1-3 The guide needle handle 2, the sharp needle core handle 6 and the blunt needle core handle 601 are all made of plastic, and the rubber limiter 4 can be used to mark the needle insertion depth.

[0039] Please refer to Figure 9 The interior of the guide needle 1 is connected to the second microspring coil tube 701, the tail end of the second microspring coil tube 701 is connected to the second push rod buckle 801, the interior of the second microspring coil tube 701 is connected to the solid push rod 901, the tail end of the solid push rod 901 is connected to the solid push rod handle 1001, the interior of the second microspring coil tube 701 is implanted with a second microspring coil 1101, and the surface of the solid push rod 901 is connected to a solid half-push mark 1301.

[0040] Please refer to Figure 9The first micro spring coil tube 7 and the second micro spring coil tube 701 are both hollow structures. After the first micro spring coil tube 7 and the second micro spring coil tube 701 are inserted into the guide needle 1, the head ends of the first micro spring coil tube 7 and the second micro spring coil tube 701 are flush with the head end of the guide needle 1, and the outer tube diameter of the first micro spring coil tube 7 and the second micro spring coil tube 701 is smaller than the inner diameter of the guide needle 1.

[0041] Please refer to Figure 9 The first micro spring coil tube 7 and the second micro spring coil tube 701 respectively form a linear structure with the first micro spring coil 11 and the second micro spring coil 1101.

[0042] Please refer to Figure 4-8 The tail wire 12 is a medical sterile type. The tail wire 12 is located in the hollow push rod 9. After the hollow push rod 9 is fully inserted into the first micro spring coil tube 7, the head end of the hollow push rod 9 is flush with the head end of the first micro spring coil tube 7.

[0043] Please refer to Figure 4-13 The first push rod buckle 8 and the second push rod buckle 801 respectively form an elastic locking structure with the hollow push rod 9 and the solid push rod 901. When the hollow push rod 9 needs to be fixed, the first push rod buckle 8 is rotated to the hollow push rod 9. At this time, the first push rod buckle 8 undergoes elastic deformation, squeezing and contacting the hollow push rod 9 to prevent the hollow push rod 9 from sliding automatically. When the hollow push rod 9 needs to be pushed, the first push rod buckle 8 is rotated to the side. In the above process, the first push rod buckle 8 is in friction contact with the tail end of the first micro-spring coil tube 7 through the rotating rod to prevent the first push rod buckle 8 from rotating freely.

[0044] Please refer to Figure 4-11 The spindle-shaped micro spring coil 14 can be implanted in the head ends of the first micro spring coil tube 7 and the second micro spring coil tube 701 respectively.

[0045] Please refer to Figure 7-12 The first microspring coil tube 7 and the second microspring coil tube 701 may be implanted with a first twin-tower microspring coil 15 and a second twin-tower microspring coil 1501 respectively at their head ends, and the tail end of the first twin-tower microspring coil 15 is connected with a tail wire 12 .

[0046] Example 1:

[0047] Percutaneous localization of small intracranial tumors under the guidance of cranial MRI: After a three-dimensional MRI scan of the cranium and the determination of the surgical path by the neurosurgeon, a bone marrow biopsy needle is used to locally drill a skull passage along the surgical path. Then a coaxial puncture guide needle 1 with a sharp-tipped needle core 5 is used to penetrate the various layers of meninges and gradually advance the needle into the brain substance. When encountering a vascular part, the blunt-tipped needle core 501 is replaced and separated until it is near the intracranial tumor site. Then the needle core is withdrawn and replaced with the inserted first micro-spring coil tube 7, which is a spindle-shaped micro-spring coil 14 with a tail line 12. The head end is flush with the head end of the guide needle 1. The first push rod buckle 8 is released, and the spindle-shaped micro-spring coil 14 for positioning is pushed out. Another scan is performed to confirm that the first micro-spring coil 11 is positioned around the tumor. The first micro-spring coil tube 7 and the guide needle 1 are pulled out. Finally, it is confirmed that the positioning of the first micro-spring coil 11 and the tail line 12 are correct, and the operation is completed.

[0048] Example 2:

[0049] Percutaneous breast nodule positioning under mammography guidance: The location of breast nodules can be determined through the axial and oblique views of mammary mammography, or by breast MRI. After discussing with the breast surgeon to decide on the surgical route, a coaxial puncture guide needle 1 with a sharp needle core 5 is used to penetrate the breast skin and subcutaneous fat, and the needle is gradually inserted into the breast substance. When encountering a vascular part, the blunt needle core 501 is replaced and separated until it is close to the breast nodule. The needle core is then withdrawn and replaced with the inserted first micro-spring coil tube 7, which is a spindle-shaped micro-spring coil 14 with a tail line 12. Scan again to confirm that the position of the guide needle 1 head end is correct, loosen the first push rod buckle 8, push out the spindle-shaped micro-spring coil 14, repeat the scan to confirm that the first micro-spring coil 11 is positioned around the tumor, pull out the first micro-spring coil tube 7 and the guide needle 1, and finally scan to confirm the position of the first micro-spring coil 11 and the tail line 12, and the operation is completed.

[0050] Example 3:

[0051] Lung CT scan positioning of small lung nodules: First, perform a CT scan of the whole lung to clarify the location of the small lung nodules. According to the requirements of the thoracic surgeon, there are two positioning methods, namely single-line positioning or multi-line positioning. Single-tail line positioning is mostly used for local wedge resection, positioning marks on the skin surface, and then determine the specific positioning target of the first micro-spring coil 11. The needle insertion path and depth are designed, and a special coaxial puncture guide needle 1 with a sharp-headed needle core 5 is used to break through the skin, subcutaneous fat, muscle space, pleura, and gradually insert the needle into the lung parenchyma. Sharp needle insertion and blunt separation are performed until the tip of the guide needle 1 is next to the lung nodule, the needle core is withdrawn, and the insert is replaced. Insert the first micro-spring coil tube 7, which is a spindle-shaped micro-spring coil 14 with a tail line 12. Scan again to confirm that the position of the tip of the guide needle 1 is correct. Loosen the first push rod buckle 8, push out the spindle-shaped micro-spring coil 14, repeat the scan to confirm that the first micro-spring coil 11 is positioned around the tumor, pull out the first micro-spring coil tube 7 and the guide needle 1, and finally scan to confirm the position of the first micro-spring coil 11 and the tail line 12. The operation is completed; multiple tail line positioning can be used for subsegmental and lung segment resection. First, discuss with the thoracic surgeon to determine the scope of surgical resection, and use multiple first micro-spring coils 11 for positioning to accurately outline the scope of surgical resection of the subsegment or lung segment.

[0052] Example 4:

[0053] Percutaneous localization of small intrahepatic nodules under the guidance of liver MRI: First, perform a liver MR scan to clarify the location of the small liver nodules. After discussing with the hepatobiliary surgeon to decide on the surgical route, use a special coaxial puncture guide needle 1 with a sharp needle core 5 to break through the skin, subcutaneous fat, and peritoneum, and gradually advance the needle into the liver parenchyma. When encountering a vascular part, replace the blunt needle core 501 and separate it until it is close to the small liver nodule. Then withdraw the needle core and replace the inserted first micro-spring coil tube 7, which is a spindle-shaped micro-spring coil 14 with a tail line 12. Scan again to confirm that the position of the guide needle 1 head end is correct, loosen the first push rod buckle 8, push out the spindle-shaped micro-spring coil 14, repeat the scan to confirm that the first micro-spring coil 11 is positioned around the tumor, pull out the first micro-spring coil tube 7 and the guide needle 1, and finally scan to confirm the position of the first micro-spring coil 11 and the tail line 12. The operation is completed. Similar positioning can also be applied to small nodules of solid organs such as the kidney and spleen before surgery.

[0054] Example 5

[0055] Percutaneous sigmoid colon nodule positioning under pelvic CT guidance: First, perform a CT scan of the abdominal and pelvic cavity to clarify the location of the small colon nodule. According to the surgical approach of the surgeon, local anesthesia is performed, and a coaxial puncture guide needle 1 is used to puncture the surgical approach and break through the peritoneum to enter the abdominal cavity. When encountering a vascular part, the blunt-headed needle core 501 is replaced and separated until it is close to the side wall of the small colon nodule. The guide needle 1 is introduced into the intestinal cavity with a sharp-headed needle core 5. The CT scan confirms that the position is correct and the first micro-spring coil tube 7 is replaced and inserted. It is the first double-tower micro-spring coil 15 with a tail line 12, loose Open the first push rod buckle 8, push the push rod to the half-push mark, observe the distal first twin-tower microspring coil 15 in the intestinal cavity by CT, then withdraw the guide needle 1 and the first microspring coil tube 7 about 3 to 8 mm and the thickness of the intestinal wall, confirm that the needle tip is outside the intestinal wall, push out the proximal first twin-tower microspring coil 15 again, confirm that the first twin-tower microspring coil 15 is embedded in the intestinal wall, then withdraw the first microspring coil tube 7 and the guide needle 1 as a whole, and finally scan to confirm the position of the first twin-tower microspring coil 15 and the tail wire 12, and the positioning is completed.

[0056] Example 6

[0057] Under the guidance of abdominal CT, the upper and lower edges of the ascending colon nodule are positioned percutaneously to define the surgical scope: when the positioning puncture guide needle 1 and the first micro-spring coil tube 7, which is the head end of the second double-tower micro-spring coil 1501, reach the proximal and distal intestinal cavity of the positioning nodule, use the solid pushing rod 901 to push to the half-push scale mark: the mark of half the length of the second double-tower micro-spring coil 1501, scan and observe that the distal second double-tower micro-spring coil 1501 pops out and is located in the intestinal cavity, and then withdraw the guide needle 1 and the first micro-spring coil tube 7 about 3 to 8 mm and the thickness of the intestinal wall, confirm that the needle tip is outside the intestinal wall, push out the proximal second double-tower micro-spring coil 1501 again, and confirm again that the second double-tower micro-spring coil 1501 is embedded in the upper and lower edges of the gastrointestinal lesion, and then withdraw the guide needle 1 and the first micro-spring coil tube 7 as a whole to accurately define the upper and lower resection range of the gastrointestinal lesion.

[0058] Specific working principle: Figure 1-12As shown, when using the multifunctional preoperative precise locator applicable to multiple organs, the guide system reaches the positioning nodule, and the sharp needle core 5 and the blunt needle core 501 can be replaced during the process. After the guide system arrives, the surgical position is accurately positioned by the positioning system. The process is to pull out the needle and replace it with the first micro-spring coil tube 7, and then the push rod pushes the first micro-spring coil 11 inside the first micro-spring coil tube 7 for surgical positioning. The specific plan details are as follows: when the guide needle 1 and the first micro-spring coil tube 7 head end reach the positioning nodule, the hollow push rod 9 is used to push the first micro-spring coil 11 to the position around the nodule, and the guide needle 1 and the first micro-spring coil tube 7 are pulled out together, and the tail line 12 is left outside the tissue so that the laparoscopic probe can find its marked position during surgery. ; When used for locating deeper gastrointestinal lesions, a first twin-tower micro-spring coil 15 with a tail line 12 is used. When the guide needle 1 and the first micro-spring coil tube 7 reach the intestinal cavity around the positioning nodule, the hollow pushing rod 9 is used to push it to the half-push scale mark of half the length of the first micro-spring coil 11. Scan and observe that the distal first twin-tower micro-spring coil 15 pops out and is located in the intestinal cavity. Then, the guide needle 1 and the first micro-spring coil tube 7 are withdrawn together by about 3 to 8 mm of intestinal wall thickness. After confirming that the needle tip is outside the intestinal wall, the first twin-tower micro-spring coil 15 is pushed out again, and then the guide needle 1 and the first micro-spring coil tube 7 are withdrawn as a whole. The tail line 12 is left under the abdominal wall outside the intestinal wall so that the laparoscopic probe can find its marked position during surgery. In addition, there is also a solid core push-positioning micro-spring coil system available For precise positioning of gastrointestinal lesions, the second twin-tower micro-spring coil 1501 is placed in the second micro-spring coil tube 701. When the guide needle 1 and the second micro-spring coil tube 701 head ends reach the proximal and distal intestinal cavities of the positioning nodules, the solid core pushing rod 901 is used to push the second twin-tower micro-spring coil 1501 to the half-push scale mark of half the length, and the distal second twin-tower micro-spring coil 1501 is scanned and observed to pop out and be located in the intestinal cavity. Then, the guide needle 1 and the second micro-spring coil tube 701 are withdrawn together by about 3 to 8 mm of intestinal wall thickness, and it is confirmed that the needle tip is outside the intestinal wall. The proximal second twin-tower micro-spring coil 1501 is pushed out again, and then the guide needle 1 and the second micro-spring coil tube 701 are withdrawn as a whole, accurately defining the upper and lower resection ranges of gastrointestinal lesions. The needle utilizes a blunt-tipped core needle 501, which can avoid damage to pulmonary blood vessels and facilitate more accurate positioning. It can be used not only for wedge resection of pulmonary nodules, but also for positioning before pulmonary subsegment or segment resection. Accurately guided and defined surgical resections are applied to the lungs, liver, kidneys, gastrointestinal tract, brain, breast, etc., and can also be used for preoperative puncture positioning of small liver and gastrointestinal lesions. The micro-spring coil used for positioning replaces traditional metal positioning hooks or needles, has good compatibility with human tissue, is generally not easy to fall off, has no obvious irritation symptoms, can remain in the lung, liver, and gastrointestinal tissues for a long time, and eliminates the worries and risks of surgical scheduling. The operation is simple and easy, without technical difficulties, and there is no need to worry about falling off or shifting, which reduces the patient's foreign body sensation and discomfort, thereby improving safety and success rate.

[0059] In addition, the preoperative puncture precise positioning device can not only be used for puncture positioning under the guidance of ultrasound, CT, PET / CT and other imaging, such as lungs, liver, gastrointestinal tract, etc., but can also be used for preoperative puncture positioning under the guidance of magnetic resonance imaging after demagnetization. This also greatly expands its application range in the lungs, liver, kidneys, gastrointestinal tract, brain, breast, etc., such as intracranial lesions. This is the characteristic of this multifunctional preoperative precise positioning device suitable for multiple organs.

[0060] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A multifunctional, precise preoperative locator for multiple organs, comprising a guidance system and a positioning system, characterized in that: The guide system comprises a guide needle (1), a guide needle handle (2), a scale line (3), a rubber stopper (4), a sharp needle core (5) and a blunt needle core (501), wherein the tail end of the guide needle (1) is connected to the guide needle handle (2), the outer wall of the guide needle (1) is provided with a scale line (3), the surface of the guide needle (1) is sleeved with a rubber stopper (4), the interior of the guide needle (1) is penetrated by a sharp needle core (5), the tail end of the sharp needle core (5) is connected to a sharp needle core handle (6), the interior of the guide needle (1) is penetrated by a blunt needle core (501), and the tail end of the blunt needle core (501) is connected to a blunt needle core handle (601); The positioning system is divided into a hollow push positioning micro-spring coil system and a solid push positioning micro-spring coil system. The hollow push positioning micro-spring coil system comprises a first micro-spring coil tube (7), a first push rod buckle (8), a hollow push rod (9), a hollow push rod handle (10), a first micro-spring coil (11), a tail line (12) and a hollow semi-push mark (13). The interior of the guide needle (1) can be adapted to connect with the first micro-spring coil tube (7). The tail end of the first micro-spring coil tube (7) is connected with the first push rod buckle (8). The interior of the first micro-spring coil tube (7) is connected with the hollow push rod (9). The tail end of the hollow push rod (9) is connected with the hollow push rod handle (10). The head end of the first micro-spring coil tube (7) is connected with the first micro-spring coil (11). The tail end of the first micro-spring coil (11) is connected with the tail line (12). The hollow push rod (9) is connected with the hollow push rod handle (10). The surface is connected with a hollow semi-push mark (13), the solid push positioning micro-spring coil system comprises a second micro-spring coil tube (701), a second push rod buckle (801), a solid push rod (901), a solid push rod handle (1001), a second micro-spring coil (1101) and a solid semi-push mark (1301), the interior of the guide needle (1) can be adapted to be connected with the second micro-spring coil tube (701), the tail end of the second micro-spring coil tube (701) is connected with the second push rod buckle (801), the interior of the second micro-spring coil tube (701) is connected with a solid push rod (901), the tail end of the solid push rod (901) is connected with a solid push rod handle (1001), the interior of the second micro-spring coil tube (701) is implanted with a second micro-spring coil (1101), and the surface of the solid push rod (901) is connected with a solid semi-push mark (1301); The outer sheath head end of the guide needle (1) is a blunt structure, and the tail wire (12) is located in the hollow pushing rod (9).

2. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: The outer sheath tip of the guide needle (1) is a blunt frosted structure, the guide needle (1) is a hollow structure, and the surface dimensions of the sharp-tip needle core (5) and the blunt-tip needle core (501) are compatible with the internal dimensions of the guide needle (1).

3. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: The guide needle handle (2), the sharp needle core handle (6) and the blunt needle core handle (601) are all made of plastic, and the rubber stopper (4) can be used to mark the needle insertion depth.

4. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: The first micro-spring coil tube (7) and the second micro-spring coil tube (701) are both hollow structures. After the first micro-spring coil tube (7) and the second micro-spring coil tube (701) are inserted into the guide needle (1), the head ends of the first micro-spring coil tube (7) and the second micro-spring coil tube (701) are flush with the head end of the guide needle (1), and the outer diameter of the first micro-spring coil tube (7) and the second micro-spring coil tube (701) is smaller than the inner diameter of the guide needle (1).

5. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: The first micro-spring coil tube (7) and the second micro-spring coil tube (701) respectively form a linear structure with the first micro-spring coil (11) and the second micro-spring coil (1101).

6. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: The tail wire (12) is of a medical sterile type. After the hollow push rod (9) is completely inserted into the first micro-spring coil tube (7), the head end of the hollow push rod (9) is flush with the head end of the first micro-spring coil tube (7).

7. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: The first push rod buckle (8) and the second push rod buckle (801) respectively form an elastic snap-fit ​​structure with the hollow push rod (9) and the solid push rod (901).

8. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: A spindle-shaped micro-spring coil (14) can be implanted inside the head ends of the first micro-spring coil tube (7) and the second micro-spring coil tube (701), respectively.

9. The multifunctional preoperative precise positioning device for multiple organs according to claim 1, characterized in that: A first twin-tower microspring coil (15) and a second twin-tower microspring coil (1501) can be implanted in the head ends of the first microspring coil tube (7) and the second microspring coil tube (701), respectively. The tail end of the first twin-tower microspring coil (15) is connected to a tail wire (12).

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