Visual positioning device for tiny focus

Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to a tiny focus visual positioning device which comprises a sleeve, a positioning device, a positioning device and a visual positioning device, and is characterized in that the sleeve is provided with a first end and a second end; the pushing sliding block is arranged on the inner ring of the sleeve; the launching spring is arranged on the outer ring of the pushing sliding block in a sleeving mode, the first end of the launching spring is connected with the end, close to the launching opening, of the pushing sliding block, and the second end of the launching spring is connected with the sleeve; the positioning body is arranged at the end, close to the emission opening, of the pushing sliding block, the positioning body comprises a light-emitting material, and the light-emitting material can emit light under excitation of the light source; and the clamping assembly is arranged in the sleeve, the clamping assembly is located on the side, away from the launching opening, of the launching spring, and the clamping assembly is used for limiting the pushing sliding block to the force storage position. The method is at least beneficial to improving the positioning precision of the focus in the minimally invasive surgery.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a device for visually locating tiny lesions. Background Art

[0002] For surgery of benign and malignant gastrointestinal tumors, accurate positioning of the lesion is the basis for successful surgery. However, clinically, a considerable number of early gastrointestinal cancers, benign tumors (those that cannot be removed by endoscopy), small endogenous stromal tumors and other lesions are small, and it is difficult to accurately locate the lesions by vision or touch alone. Before the widespread promotion of laparoscopic technology, one or several metal titanium clips were often placed next to the lesion under endoscopy before surgery to assist in locating the lesion. During surgery, the lesion can be accurately located by touching the metal titanium clips with hands. Nowadays, laparoscopic minimally invasive surgery is widely used in gastrointestinal surgery, and its efficacy is also widely recognized. It is a good indication for laparoscopic minimally invasive surgery for lesions such as early gastrointestinal cancer, benign tumors (those that cannot be removed by endoscopy), and small endogenous stromal tumors. For such lesions, the surgeon lacks direct touch of the hand during laparoscopic surgery. Even if the lesion has been assisted in locating the lesion by endoscopic placement of titanium clips before surgery, it is difficult to determine the location of the lesion by touching the intestinal segment between instruments, which limits the accuracy of lesion positioning in laparoscopic minimally invasive surgery. Summary of the invention

[0003] In view of this, the present invention aims to provide a visual positioning device for tiny lesions, which is at least helpful in improving the positioning accuracy of lesions in minimally invasive surgery.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows: The present invention provides a visual positioning device for micro-lesions, comprising: a sleeve, the sleeve having a first end and a second end, the first end having a launch port; a push slider, the push slider is arranged on the inner ring of the sleeve; a launch spring, the launch spring is sleeved on the outer ring of the push slider, and the first end of the launch spring is connected to an end of the push slider adjacent to the launch port, and the second end of the launch spring is connected to the sleeve; a positioning body, the positioning body is arranged at the end of the push slider adjacent to the launch port, the positioning body includes a luminescent material, and the luminescent material can emit light under the excitation of a light source; a clamping assembly, the clamping assembly is arranged in the sleeve, and the clamping assembly is located on a side of the launch spring away from the launch port, and the clamping assembly is used to limit the push slider in a power storage position; wherein, when the push slider is in the power storage position, the launch spring is in a compressed state, and after the clamping assembly releases the push slider, the launch spring drives the push slider to move toward the launch port, so as to push the positioning body out of the launch port and launch it to the target position.

[0005] Furthermore, the luminescent material can emit infrared light under the excitation of a visible light source or an ultraviolet light source.

[0006] Furthermore, the positioning body has hydrogel, and the positioning body is bonded to the target position through the hydrogel.

[0007] Furthermore, the sleeve includes a guide sleeve and a connecting sleeve connected to each other, and the guide sleeve has a launching port at one end away from the connecting sleeve; a part of the pushing slider is arranged in the guide sleeve, the remaining part of the pushing slider is arranged in the connecting sleeve, and the launching spring is arranged in part of the guide sleeve; the inner ring of one end of the guide sleeve connected to the connecting sleeve has an annular protrusion, and the second end of the launching spring abuts against the annular protrusion.

[0008] Furthermore, the pushing slider includes a connecting rod, a clamping part and a launching part, the clamping part and the launching part are respectively fixed to the opposite ends of the connecting rod, the outer diameter of the launching part and the outer diameter of the clamping part are both larger than the outer diameter of the connecting rod, the launching spring is sleeved on the outer ring of the connecting rod, and the first end of the launching spring is in contact with the launching part.

[0009] Furthermore, the inner wall of the guide sleeve has at least one set of two guide grooves arranged opposite to each other, and the side of the launching part has a sliding member cooperating with the guide groove. When the pushing slider slides in the guide sleeve, the sliding member is located in the corresponding guide groove and slides along the corresponding guide groove.

[0010] Furthermore, the locking assembly includes a limit slider, a second spring, a fixing ring, a reversing ring and a guide wire; the inner wall of the connecting sleeve has a notch, the second spring is arranged in the notch, and the second spring is connected to the limit slider, one end of the guide wire is connected to the limit slider through the fixing ring, the reversing ring is arranged on the inner wall of the connecting sleeve, and the guide wire extends through the reversing ring in a direction away from the launching port; wherein, when the guide wire is not subjected to force, the push slider is pushed in a direction away from the launching port, and after the locking portion moves to the side of the limit slider away from the launching port, the second spring applies a pressure force to the limit slider, and the limit slider limits the locking portion to limit the push slider in the force storage position; the guide wire is pulled in a direction away from the launching port, and the guide wire drives the limit slider to move off-axis along the notch, and the limit slider releases the locking portion, so that the locking assembly releases the push slider.

[0011] Furthermore, the clamping assembly also includes a guide shaft, which is arranged in the connecting sleeve and has a guide hole. The guide wire passes through the reversing ring and the guide hole in sequence and extends in a direction away from the launch port.

[0012] Furthermore, the device for visually locating micro-lesions also includes a catheter and a working handle. The working handle has a handle. The catheter is connected to one end of the connecting sleeve away from the guide sleeve. The working handle is connected to one end of the catheter away from the connecting sleeve. The guide wire passes through the catheter and is connected to the handle.

[0013] Compared with the prior art, the invention can achieve the following beneficial effects: the visual positioning device for tiny lesions provided by the invention does not need to use traditional titanium clips, which solves the problem that titanium clips cannot be clamped and positioned due to angles. The invention emits a positioning body including a luminescent material to the target position where the lesion is located, and uses a light source to excite the luminescent material to emit light during the operation, thereby accurately positioning the position of the positioning body, and then positioning the lesion, which is beneficial to improving the positioning accuracy of the lesion in minimally invasive surgery. The visual positioning device for tiny lesions provided by the invention is reusable, and after the first use, it can be reused after strict disinfection and replacement of the positioning body, and has high economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings: Figure 1 A schematic diagram of the structure of a device for visually locating micro-lesions according to an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the positioning body described in the embodiment of the present invention; Figure 3 A partial structural schematic diagram of a device for visually locating micro-lesions according to an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the engaging components of the visual positioning device for micro-lesions according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of the connecting sleeve and the limiting slider of the device for visually locating micro-lesions described in an embodiment of the present invention.

[0015] Explanation of the reference numerals: 101, launching port; 3, pushing slider; 4, launching spring; 2, positioning body; 20, snap-fit ​​assembly; 201, hydrogel; 1, guide sleeve; 5, connecting sleeve; 103, annular protrusion; 32, connecting rod; 33, snap-fit ​​portion; 31, launching portion; 102, guide groove; 310, sliding member; 6, limiting slider; 7, second spring; 8, fixing ring; 10, reversing ring; 9, guide wire; 61, first groove; 62, second groove; 11, guide shaft; 110, guide hole; 12, catheter; 13, working handle; 14, handle. DETAILED DESCRIPTION

[0016] After analysis, it was found that the existing positioning methods using titanium clips mainly include the following two methods: the first method: during the operation, the doctor finds the position of the titanium clip by touch, and then determines the location of the lesion; the second method: when it is difficult to locate the titanium clip by touch, it is necessary to insert a gastroenteroscope to assist in positioning. The above two methods have the following problems: during laparoscopic surgery, the surgeon lacks direct touch of the hands. Even if the lesion has been assisted in positioning by inserting a titanium clip through the endoscope before the operation, it is difficult to determine the location of the lesion by simply touching the intestinal segment between the instruments; intraoperative endoscopic examination (insertion of a gastroenteroscope) prolongs the operation time, increases the operating cost of the operating room, and the patient's anesthesia time is also prolonged accordingly; because the gastroenteroscope is always connected to an external device, a large amount of gas will be injected into the intestinal cavity during the operation, causing significant intestinal expansion, occupying the abdominal cavity space, increasing the difficulty of laparoscopic surgery, and even forcing conversion to open surgery; for lesions of the colon, the patient has been positioned before the intraoperative enteroscopy, and some or even all of the punctures have been completed. At this time, if the positioning is inconsistent with the preoperative evaluation, the position and puncture position need to be reselected, which adds unnecessary procedures and cannot well reflect the principle of minimally invasive surgery; intraoperative endoscopic examination requires the cooperation of professional endoscopists, nurses and disinfection teams, which consumes human resources; intraoperative endoscopic examination requires the operating room to be equipped with a full set of special endoscopic equipment.

[0017] To solve the above problems, the present invention provides a visual positioning device for tiny lesions, which ejects a positioning body to the lesion or a position adjacent to the lesion, and fixes the positioning body at the target position by hydrogel. The positioning body includes a luminescent material, which can emit infrared light under the excitation of ultraviolet light or visible light, so as to achieve the positioning of the lesion. The visual positioning device for tiny lesions provided by the present invention does not require traditional titanium clip positioning, which is beneficial to solving the positioning problems existing in existing titanium clips such as the inability to clamp due to angles, and is beneficial to improving the positioning accuracy of the lesions.

[0018] In order to make the purpose, technical solution and advantages of the invention more clear, the invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the invention and do not constitute a limitation of the invention.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0021] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] refer to Figures 1 to 5The present invention provides a visual positioning device for micro-lesions, comprising: a sleeve, the sleeve having a first end and a second end, the first end having a launch port 101; a push slider 3, the push slider 3 being arranged on the inner ring of the sleeve; a launch spring 4, the launch spring 4 being sleeved on the outer ring of the push slider 3, and the first end of the launch spring 4 being connected to an end of the push slider 3 adjacent to the launch port 101, and the second end of the launch spring 4 being connected to the sleeve; a positioning body 2, the positioning body 2 being arranged on the end of the push slider 3 adjacent to the launch port 101, and the positioning body 2 comprising Luminescent material, which can emit light under the stimulation of a light source; a snap-fit ​​assembly 20, which is arranged in the sleeve, and the snap-fit ​​assembly 20 is located on the side of the launch spring 4 away from the launch port 101, and the snap-fit ​​assembly 20 is used to limit the push slider 3 in the power storage position; wherein, when the push slider 3 is in the power storage position, the launch spring 4 is in a compressed state, and after the snap-fit ​​assembly 20 releases the push slider 3, the launch spring 4 drives the push slider 3 to move toward the launch port 101, so as to push the positioning body 2 out of the launch port 101 and launch it to the target position. wherein, the positioning body 2 is placed on the push slider 3, and the push slider 3 can reciprocate along the sleeve, and the launch spring 4 provides kinetic energy to the push slider 3, which is used to realize the launch of the positioning body 2. The target position can be the position where the lesion on the inner wall of the gastrointestinal tract is located or the position relatively close to the lesion, and the visual positioning device for micro-lesions provided by the present invention can be used for positioning the lesions in minimally invasive gastrointestinal surgery.

[0024] Furthermore, the luminescent material can emit infrared light under the excitation of a visible light source or an ultraviolet light source, that is, the luminescent material can emit a light beam with a wavelength greater than 700 nm under the irradiation of a light beam with a wavelength less than 700 nm.

[0025] In some embodiments, the positioning body 2 includes a main body and a luminescent material, the luminescent material is sprayed on the surface of the main body, and the material of the main body may be silicone; in other embodiments, the positioning body 2 is a mixture of silicone and the luminescent material; in yet other embodiments, the positioning body 2 includes a main body, a luminescent material and silicone, and the silicone and powdered luminescent material are mixed and coated on the surface of the main body to form the positioning body 2.

[0026] For further reference, Figure 2 The positioning body 2 has a hydrogel 201 , and the positioning body 2 is bonded to the target position through the hydrogel 201 .

[0027] It should be noted that after the positioning body 2 is bonded to the target position, a corresponding light source can be used for irradiation. After irradiation, the positioning body 2 can be quickly and accurately located, thereby achieving the location of the lesion. The positioning body 2 is removed along with the lesion during surgical resection of the lesion. In addition, the irradiation form of the light source can be direct irradiation into the body, introduction into the body through optical fiber, or direct irradiation outside the body.

[0028] In some embodiments, the luminescent material is a near-infrared phosphor with good chemical stability, non-toxicity, strong penetrating ability of the excited light beam and high luminous efficiency, namely, a NIR (near-infrared) phosphor, and its specific material may include Ca2LuHf2Al3O 12 :Cr 3+ By using near-infrared fluorescent powder as the luminescent material, an infrared camera can be used to image the positioning body 2 located inside the gastrointestinal tract, which is conducive to accurately positioning the positioning body 2.

[0029] For further reference, Figure 1 and Figure 3 The sleeve includes a guide sleeve 1 and a connecting sleeve 5 connected to each other. The end of the guide sleeve 1 away from the connecting sleeve 5 has a launching port 101; a part of the pushing slider 3 is arranged in the guide sleeve 1, the remaining part of the pushing slider 3 is arranged in the connecting sleeve 5, and the launching spring 4 is arranged in part of the guide sleeve 1; the inner ring of the end of the guide sleeve 1 connected to the connecting sleeve 5 has an annular protrusion 103, and the second end of the launching spring 4 abuts against the annular protrusion 103.

[0030] For further reference, Figure 1 and Figure 3 The pushing slider 3 includes a connecting rod 32, a clamping portion 33 and a launching portion 31. The clamping portion 33 and the launching portion 31 are respectively fixed to the opposite ends of the connecting rod 32. The outer diameter of the launching portion 31 and the outer diameter of the clamping portion 33 are both larger than the outer diameter of the connecting rod 32. The launching spring 4 is sleeved on the outer ring of the connecting rod 32, and the first end of the launching spring 4 is in contact with the launching portion 31.

[0031] For further reference, Figure 3 The inner wall of the guide sleeve 1 has at least one set of two guide grooves 102 arranged opposite to each other, and the side of the launching part 31 has a sliding member 310 that cooperates with the guide groove 102. When the push slider slides in the guide sleeve 1, the sliding member 310 is located in the corresponding guide groove 102 and slides along the corresponding guide groove 102.

[0032] Furthermore, the clamping assembly 20 includes a limit slider 6, a second spring 7, a fixing ring 8, a reversing ring 10 and a guide wire 9; the inner wall of the connecting sleeve 5 has a notch, the second spring 7 is arranged in the notch, and the second spring 7 is connected to the limit slider 6, the second spring 7 is fixed on the connecting sleeve 5, and provides power for the limit slider 6 to reciprocate along the notch of the connecting sleeve 5; one end of the guide wire 9 is connected to the limit slider 6 through the fixing ring 8, the reversing ring 10 is arranged on the inner wall of the connecting sleeve 5, and the guide wire 9 passes through the reversing ring 10 to move away from the launch port 10 1; wherein, when the guide wire 9 is not subjected to force, the push slider 3 is pushed in the direction away from the launch port 101, and after the engaging portion 33 moves to the side of the limiting slider 6 away from the launch port 101, the second spring 7 applies a pressure force to the limiting slider 6, and the limiting slider 6 limits the engaging portion 33 to limit the push slider 3 in the force storage position; the guide wire 9 is pulled in the direction away from the launch port 101, and the guide wire 9 drives the limiting slider 6 to move off-axis along the slot, and the limiting slider 6 releases the engaging portion 33, so that the engaging assembly 20 releases the push slider 3.

[0033] In some embodiments, one end of the engaging portion 33 away from the launching portion 31 is conical, so that when the pushing slider 3 is pushed in a direction away from the launching port 101 , the engaging portion 33 can smoothly slide over the limiting slider 6 .

[0034] In some embodiments, the notch includes a first groove 61 and a second groove 62 , the first groove 61 is used to install the second spring 7 , and the second groove 62 is used to install the limiting slider 6 .

[0035] Furthermore, the engaging assembly 20 also includes a guide shaft 11 , which is disposed in the connecting sleeve 5 . The guide shaft 11 has a guide hole 110 . The guide wire 9 sequentially passes through the reversing ring 10 and the guide hole 110 and extends in a direction away from the launching port 101 .

[0036] Furthermore, the device for visually locating micro-lesions also includes a catheter 12 and a working handle 13, the working handle 13 has a handle 14, the catheter 12 is connected to the end of the connecting sleeve 5 away from the guide sleeve 1, the working handle 13 is connected to the end of the catheter 12 away from the connecting sleeve 5, the fixing ring 8 fixes the guide wire 9 on the limiting slider 6, the guide wire 9 passes through the reversing ring 10, the guide hole 110 in the guide shaft 11, and the catheter 12 is connected to the handle 14 on the working handle 13, and the handle 14 slides on the working handle 13 to drive the guide wire 9 to move, thereby causing the limiting slider 6 to move off-axis along the groove of the connecting sleeve 5.

[0037] In some embodiments, the connection between the connecting sleeve 5 and the guide sleeve 1 and the connection between the connecting sleeve 5 and the catheter 12 are both threaded connections.

[0038] In some embodiments, the method of using the visual positioning device for micro-lesions provided by the present invention is as follows: before use, the positioning body 2 is placed on the launch portion 31 of the push slider 3, and the push slider 3 is compressed along the guide groove 102 of the guide sleeve 1 in a direction away from the launch port 101. When the engaging portion 33 of the push slider 3 contacts the limit slider 6 and continues to move downward, the limit slider 6 compresses the second spring 7 along the notch of the connecting sleeve 5. When the push slider 3 moves to the force storage position, the second spring 7 releases the limit slider 6 to move in the axial direction, and the lower side of the limit slider 6 presses against the push slider 3 to complete the force storage preparation. When in use, the launch port 101 is extended into the body through the catheter 12 using the dedicated channel of the gastroenteroscopy and aligned with the target position, the handle 14 is pulled to drive the guide wire 9 and then the limit slider 6 moves off-axis along the slot of the connecting sleeve 5. When it moves to a specific position, the limit slider 6 is separated from the push slider 3, and the launch spring 4 releases the push slider 3 to align the positioning body 2 with the lesion position and shoot it out, and the hydrogel 201 on the positioning body 2 is adhered to the lesion position; during surgery, ultraviolet light or visible light that excites the luminescent material can be used to achieve positioning, thereby reducing operation time and required equipment, reducing operation costs, and improving operation efficiency.

[0039] In some embodiments, the assembly method of the visual positioning device for micro-lesions provided by the present invention can be as follows: first, the second spring 7 is placed in the first groove 61 of the connecting sleeve 5, the guide wire 9 is fixed to the limit slider 6 by the fixing ring 8, and the limit slider 6 is installed in the second groove 62 of the connecting sleeve 5, the rear side of the limit slider 6 is in contact with the second spring 7, the guide wire 9 passes through the reversing ring 10, the guide shaft 11 and the catheter 12 and is connected to the handle 14, and then the handle 14 is installed on the working handle 13; secondly, the launching spring 4 is sleeved on the pushing slider 3, the pushing slider 3 is placed in the guide sleeve 1, and the guide sleeve 1 and the connecting sleeve 5 are connected by a thread; finally, the positioning body 2 is placed on the pushing slider 3 to complete the overall assembly.

[0040] In some embodiments, reference Figure 2 The positioning body 2 is hemispherical, and a hydrogel 201 is attached to the surface of the positioning body 2 facing the emission port.

[0041] The micro-lesion visual positioning device provided by the present invention is used in minimally invasive surgery, therefore, in some embodiments, the outer diameter of the guide sleeve 1 is in the range of 2mm-2.3mm, and the outer diameter of the working handle 13 is in the range of 10mm-12mm. This is conducive to ensuring that the size of the end entering the human body is small.

[0042] In addition, it should be noted that the present invention Figure 1 The length of the conduit 12 is reduced in size and shown in FIG. 1 , and the actual length of the conduit may be in the range of 1900 mm to 2100 mm.

[0043] It should be noted that in the related art, dyes are injected into the submucosal layer of the gastrointestinal wall to locate lesions. This method of lesion location not only makes it difficult to control the overflow and local diffusion of the dye in the gastrointestinal wall, resulting in low accuracy in lesion location, but may also induce complications in human tissues, increase the difficulty of lesion removal, and have an impact on the human body. The tiny lesion visual positioning device provided by the present invention can solve a series of problems caused by using dyes to locate lesions.

[0044] The visual positioning device for tiny lesions provided by the present invention does not need to use traditional titanium clips, thus solving the problem that titanium clips cannot be clamped and positioned due to angles. The visual positioning device for tiny lesions provided by the present invention is reusable and can be reused after being strictly disinfected and the positioning body is replaced after the first use, thus having high economic value.

[0045] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the disclosure of the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in the present invention can be achieved, and this document does not limit this.

[0046] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A visual positioning device for micro-lesions, characterized in that: include: a sleeve having a first end and a second end, the first end having a launch port; A pushing slider, wherein the pushing slider is arranged on the inner ring of the sleeve; A launching spring, wherein the launching spring is sleeved on the outer ring of the pushing slider, and a first end of the launching spring is connected to an end of the pushing slider adjacent to the launching port, and a second end of the launching spring is connected to the sleeve; A positioning body, the positioning body is arranged at the end of the pushing slider adjacent to the emission port, the positioning body comprises a luminescent material, and the luminescent material can emit light under the excitation of a light source; A clamping assembly, which is arranged in the sleeve and located on a side of the launching spring away from the launching port, and is used to limit the pushing slider at a force storage position; When the pushing slider is located at the force storage position, the launching spring is in a compressed state. After the locking assembly releases the pushing slider, the launching spring drives the pushing slider to move toward the launching port to push the positioning body out of the launching port and launch it to the target position.

2. The device for visually locating micro-lesions according to claim 1, characterized in that: The luminescent material can emit infrared light under the excitation of a visible light source or an ultraviolet light source.

3. The device for visually locating micro-lesions according to claim 1, characterized in that: The positioning body has a hydrogel thereon, and the positioning body is bonded to the target position through the hydrogel.

4. The device for visually locating micro-lesions according to claim 1, characterized in that: The sleeve comprises a guide sleeve and a connecting sleeve connected to each other, and the end of the guide sleeve away from the connecting sleeve has the launching port; A portion of the pushing slider is disposed in the guide sleeve, the remaining portion of the pushing slider is disposed in the connecting sleeve, and the launching spring is disposed in a portion of the guide sleeve; The inner ring of one end of the guide sleeve connected to the connecting sleeve has an annular protrusion, and the second end of the launching spring abuts against the annular protrusion.

5. The device for visually locating micro-lesions according to claim 4, characterized in that: The pushing slider includes a connecting rod, a clamping part and a launching part, the clamping part and the launching part are respectively fixed to the opposite ends of the connecting rod, the outer diameter of the launching part and the outer diameter of the clamping part are both larger than the outer diameter of the connecting rod, the launching spring is sleeved on the outer ring of the connecting rod, and the first end of the launching spring is in contact with the launching part.

6. The device for visually locating micro-lesions according to claim 5, characterized in that: The inner wall of the guide sleeve has at least one set of two guide grooves arranged opposite to each other, and the side surface of the launching part has a sliding member cooperating with the guide groove. When the pushing slider slides in the guide sleeve, the sliding member is located in the corresponding guide groove and slides along the corresponding guide groove.

7. The device for visually locating micro-lesions according to claim 5, characterized in that: The clamping assembly includes a limiting slider, a second spring, a fixing ring, a reversing ring and a guide wire; The inner wall of the connecting sleeve has a notch, the second spring is arranged in the notch, and the second spring is connected to the limit slider, one end of the guide wire is connected to the limit slider through the fixing ring, the reversing ring is arranged on the inner wall of the connecting sleeve, and the guide wire passes through the reversing ring and extends in a direction away from the launch port; Wherein, when the guide wire is not subjected to force, the pushing slider is pushed in a direction away from the launching port, and after the engaging portion moves to a side of the limiting slider away from the launching port, the second spring applies a pressure force to the limiting slider, and the limiting slider limits the engaging portion, so as to limit the pushing slider to the force storage position; The guide wire is pulled in a direction away from the launch port, and the guide wire drives the limit slider to move off-axis along the slot, and the limit slider releases the engaging portion, so that the engaging assembly releases the pushing slider.

8. The device for visually locating micro-lesions according to claim 7, characterized in that: The clamping assembly also includes a guide shaft, which is arranged in the connecting sleeve and has a guide hole. The guide wire passes through the reversing ring and the guide hole in sequence and extends in a direction away from the launch port.

9. The device for visually locating micro-lesions according to claim 7, characterized in that: The device for visually locating micro-lesions also includes a catheter and a working handle. The working handle has a handle. The catheter is connected to one end of the connecting sleeve away from the guide sleeve. The working handle is connected to one end of the catheter away from the connecting sleeve. The guide wire passes through the catheter and is connected to the handle.

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