Tiny focus positioning device

Abstract

The invention relates to the technical field of medical instruments, in particular to a tiny focus positioning device which comprises a positioning structure, the positioning structure comprises a titanium clamp, a sleeve and a guide wire, the first end of the titanium clamp is a clamping end, the second end of the titanium clamp is a traction end, and the clamping end extends out of the first end of the sleeve; the part, between the clamping end and the traction end, of the titanium clamp is slidably connected with the sleeve, the traction end is connected with the first end of the guide wire, the second end of the guide wire extends out of the second end of the sleeve, and the surface of the sleeve is provided with a luminescent material which can emit light under excitation of the light source; the guide-in structure comprises a catheter, a working handle and a handle, the first end of the catheter is connected with the second end of the sleeve, the second end of the catheter is connected with the working handle, the handle is arranged on the working handle and can slide relative to the working handle, and the second end of the guide wire penetrates through the catheter and is connected with the handle. 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 micro-lesion positioning device. Background Art

[0002] For surgery on benign and malignant gastrointestinal tumors, accurate positioning of the lesion is the basis for successful surgery. However, in clinical practice, 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. 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 the instruments, thus limiting 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 device for locating a tiny lesion, which is at least helpful in improving the positioning accuracy of the lesion in minimally invasive surgery.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] The invention provides a micro-lesion positioning device, comprising: a positioning structure, the positioning structure comprising: a titanium clip, a sleeve and a guide wire, part of the titanium clip and part of the guide wire are arranged in the inner ring of the sleeve, the first end of the titanium clip is a clamping end, the second end of the titanium clip is a traction end, the clamping end extends from the first end of the sleeve, part of the titanium clip between the clamping end and the traction end is slidably connected with the sleeve, the traction end is connected to the first end of the guide wire, and the second end of the guide wire extends from the second end of the sleeve, the surface of the sleeve has a luminescent material, and the luminescent material can emit light under the excitation of a light source; an introduction structure, the introduction structure comprises a catheter, a working handle and a handle, the first end of the catheter is connected to the second end of the sleeve, the second end of the catheter is connected to the working handle, the handle is arranged on the working handle, and the handle can slide relative to the working handle, and the second end of the guide wire passes through the catheter and is connected to the handle; during use, the guide wire is pulled by the handle, the guide wire drives the traction end to slide relative to the sleeve, so that the titanium clip is clamped at the target position, the guide wire is pulled in a direction away from the titanium clip until the guide wire is disconnected, so that the positioning structure is separated from the introduction structure, and the positioning structure is clamped at the target position by the titanium clip.

[0006] Furthermore, the luminescent material can emit infrared light under the excitation of a visible light source or an ultraviolet light source.

[0007] Furthermore, the titanium clamp includes a first clamping part and a second clamping part, the first end of the first clamping part corresponds to the clamping end, the second end of the first clamping part corresponds to the traction end, the first end of the second clamping part corresponds to the clamping end, the second end of the second clamping part corresponds to the traction end, and the second end of the first clamping part and the second end of the second clamping part are fixed to the guide wire by a set screw; the first clamping part has a first slot, the first fixing screw passes through the first slot, and both ends of the first fixing screw are fixed on the sleeve; the second clamping part has a second slot, the second fixing screw passes through the second slot, and both ends of the second fixing screw are fixed on the sleeve.

[0008] Furthermore, the first end of the first clamping portion is serrated on one side facing the second clamping portion, and the first end of the second clamping portion is serrated on one side facing the first clamping portion.

[0009] Furthermore, along the direction from the first end of the sleeve to the second end of the sleeve, the sleeve includes a first part, a second part, a third part and a fourth part connected in sequence, wherein the outer diameter of the first part, the outer diameter of the second part, the outer diameter of the third part and the outer diameter of the fourth part are all the same; wherein, along the extension direction of the first fixing screw, the first part includes a first fixing portion and a second fixing portion arranged at intervals and opposite to each other, the traction end of the titanium clip is located between the first fixing portion and the second fixing portion, the two ends of the first fixing screw are respectively fixed on the first fixing portion and the second fixing portion, and the two ends of the second fixing screw are respectively fixed on the first fixing portion and the second fixing portion; the second part, the third part and the fourth part are all tubular, and the inner diameter of the third part and the inner diameter of the fourth part are both smaller than the inner diameter of the second part, and along the direction from the first fixing screw to the second fixing screw, the size of the traction end gradually decreases in the direction away from the clamping end, and the part of the traction end away from the clamping end can extend into the inner circle of the second part.

[0010] Furthermore, the inner diameter of the third part is smaller than the inner diameter of the fourth part; the outer ring of the guide wire has an anti-slip component. When the guide wire is pulled in a direction away from the titanium clamp, the anti-slip component passes through the inner ring of the third part and enters the inner ring of the fourth part. Thereafter, the anti-slip component is unfolded in the inner ring of the fourth part, and the width of the unfolded anti-slip component is greater than the inner diameter of the third part.

[0011] Furthermore, the sleeve also includes a fifth part and a sixth part, the fifth part is located on the side of the fourth part away from the third part, the sixth part is located on the side of the fifth part away from the fourth part, the outer diameter of the fifth part is equal to the outer diameter of the fourth part, the outer diameter of the sixth part is smaller than the outer diameter of the fifth part, the sixth part extends into the first end of the catheter, and the inner diameter of the fifth part and the inner diameter of the sixth part are both smaller than the inner diameter of the fourth part.

[0012] Furthermore, the guide wire has an annular fracture groove, which is located on a portion of the guide wire between the anti-dropping component and the handle. When the guide wire is pulled apart, the annular fracture groove is disconnected.

[0013] Furthermore, the luminescent material is in powder form, and the surface of the sleeve has a mixture of the luminescent material and silica gel.

[0014] Compared with the prior art, the invention can achieve the following beneficial effects: the micro-lesion positioning device provided by the invention is applied to minimally invasive surgery to position the lesion. Specifically, the positioning structure can be fixed at the position where the lesion is located or at a position adjacent to the lesion by a titanium clamp. In the positioning structure, the opening and closing of the titanium clamp can be controlled by structures such as a guide wire and a handle, that is, the opening and closing of the titanium clamp in the body can be controlled in vitro. The clamping position of the first clamping part and the second clamping part of the titanium clamp is designed as a serrated structure, which can improve the success rate of titanium clamp fixation during use and ensure that the titanium clamp is not easy to fall off after clamping. In addition, the surface of the sleeve has a luminescent material. After the positioning structure is clamped at the target position by the titanium clamp, the luminescent material is excited to emit light by a light source. The luminescent material is arranged on the surface of the sleeve, so that the setting area of ​​the luminescent material in the positioning structure is larger, and the light intensity generated by the luminescent material is also stronger, which makes it more convenient to locate the positioning structure during surgery, thereby helping to improve the positioning accuracy of the lesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the invention are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation on the invention. Unless otherwise stated, the drawings in the drawings do not constitute a scale limitation. The drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of a micro-lesion localization device according to an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the structure of the handle, the conduit and the working handle according to the embodiment of the present invention;

[0018] Figure 3 A schematic diagram of the structure of the handle, catheter, working handle and part of the guide wire according to the embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the structure of the titanium clip and part of the guide wire according to an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the structure of the positioning structure described in the embodiment of the present invention;

[0021] Figure 6 A schematic structural diagram of a sleeve according to an embodiment of the present invention.

[0022] Explanation of the accompanying drawings: 1. titanium clamp; 2. sleeve; 5. guide wire; 3. fixing screw; 20. catheter; 21. working handle; 22. handle; 31. first fixing screw; 32. second fixing screw; 110. first clamping part; 120. second clamping part; 4. set screw; 41. first notch; 42. second notch; 111. first part; 112. second part; 113. third part; 114. fourth part; 115. fifth part; 116. sixth part; 123. anti-slip part; 52. annular fracture groove; 1111. first fixing part; 1112. second fixing part; 60. positioning structure; 61. introduction structure. DETAILED DESCRIPTION

[0023] After analysis, it was found that the existing methods of locating lesions 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.

[0024] In order to solve the above problems, the present invention provides a device for locating micro-lesions. Taking into account that the titanium clip is relatively small, forming luminescent material only on the titanium clip may cause the light source emitted by the luminescent material to be too small and difficult to be detected. Also, taking into account that if there is less contact between the titanium clip and the clamped target position, the titanium clip may easily fall off. The present invention arranges luminescent material on the surface of the sleeve. The luminescent material can emit infrared light under the excitation of ultraviolet light or visible light. In this way, the arrangement area of ​​the luminescent material is increased. During the operation, the positioning structure can be conveniently and accurately positioned after irradiation with a corresponding light source, thereby achieving resection of the lesion. In addition, a serrated structure and an anti-slip component are provided to improve the stability of the titanium clip in clamping the target position, which is beneficial to preventing the titanium clip from falling off.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] refer to Figures 1 to 6 The present invention provides a micro-lesion positioning device, including: a positioning structure 60, the positioning structure 60 includes: a titanium clip 1, a sleeve 2 and a guide wire 5, part of the titanium clip 1 and part of the guide wire 5 are arranged in the inner ring of the sleeve 2, the first end of the titanium clip 1 is a clamping end, the second end of the titanium clip 1 is a traction end, the clamping end extends from the first end of the sleeve 2, the part of the titanium clip 1 between the clamping end and the traction end is slidably connected to the sleeve 2 through a fixing screw 3, the traction end is connected to the first end of the guide wire 5, and the second end of the guide wire 5 extends from the second end of the sleeve 2, the surface of the sleeve 2 has a luminescent material, and the luminescent material can emit light under the excitation of a light source; an introduction structure 61, the introduction structure 61 includes a catheter 20, a working handle 21 and and a handle 22, the first end of the catheter 20 is connected to the second end of the sleeve 2, the second end of the catheter 20 is connected to the working handle 21, the handle 22 is arranged on the working handle 21, and the handle 22 is slidable relative to the working handle 21, the second end of the guide wire 5 passes through the catheter 20 and is connected to the handle 22; during use, the guide wire 5 is pulled by the handle 22, and the guide wire 5 drives the traction end to slide relative to the sleeve 2, so that the titanium clip 1 is clamped at the target position, and the guide wire 5 is pulled in a direction away from the titanium clip 1 until the guide wire 5 is disconnected, so that the positioning structure 60 is separated from the introduction structure 61, and the positioning structure 60 is clamped at the target position by the titanium clip 1, and the target position is the position where the lesion is located or the position adjacent to the lesion.

[0031] It should be noted that the closing operation of the titanium clip 1 can be achieved by pulling the guide wire 5 in the direction away from the titanium clip 1 by the handle 22, and the opening operation of the titanium clip 1 can be achieved by pushing the guide wire 5 in the direction of the titanium clip 1 by the handle 22.

[0032] In some embodiments, the outer surface of the sleeve 2 has luminescent material, so that the setting area of ​​the luminescent material can be increased, which is beneficial to further reduce the positioning difficulty of the positioning structure 60, making it easier to locate the positioning structure 60 during surgery.

[0033] In some embodiments, the luminescent material is in powder form, and the surface of the sleeve 2 has a mixture of the luminescent material and silica gel. In other embodiments, the luminescent material and the sleeve 2 can also be fixed in the form of spraying, gluing, etc. The present invention does not limit the fixing method of the luminescent material, as long as the surface of the sleeve 2 is guaranteed to have the luminescent material.

[0034] In some embodiments, the surface of the titanium clip 1 also has luminescent material.

[0035] In some embodiments, the luminescent material can emit infrared light when excited by a visible light source or an ultraviolet light source.

[0036] It should be noted that when the guide wire 5 is disconnected, the positioning structure 60 stays at the target position. By irradiating with a light source that excites the luminescent material to emit light, the positioning structure 60 can be accurately and quickly positioned, thereby achieving the positioning of the lesion. The positioning structure 60 is removed along with the lesion during surgical resection of the lesion. In addition, the light source can be directly irradiated into the body, introduced into the body through optical fiber, or directly irradiated outside the body.

[0037] In some embodiments, the luminescent material is a near-infrared phosphor with good chemical stability, non-toxicity, strong penetrating power of the excited light beam and high luminous efficiency, namely, a NIR (near-infrared) phosphor, and its specific material may include Ca 2 LqCy 2 Al 3 O 12 :Cr 3+ By using near-infrared fluorescent powder as the luminescent material, an infrared camera can be used to image the luminous sleeve 2 located inside the gastrointestinal tract, which is conducive to accurately positioning the positioning structure 60.

[0038] In some embodiments, the fixing screw 3 includes a first fixing screw 31 and a second fixing screw 32, and the titanium clamp 1 includes a first clamping portion 110 and a second clamping portion 120, the first end of the first clamping portion 110 corresponds to the clamping end, the second end of the first clamping portion 110 corresponds to the traction end, the first end of the second clamping portion 120 corresponds to the clamping end, the second end of the second clamping portion 120 corresponds to the traction end, and the second end of the first clamping portion 110 and the second end of the second clamping portion 120 are fixed to the guide wire 5 by a set screw 4; the first clamping portion 110 has a first slot 41, the first fixing screw 31 passes through the first slot 41, and both ends of the first fixing screw 31 are fixed on the sleeve 2; the second clamping portion 120 has a second slot 42, the second fixing screw 32 passes through the second slot 42, and both ends of the second fixing screw 32 are fixed on the sleeve 2. In this way, when the guide wire 5 drives the traction end to move, the second clamping part 120 slides relative to the second fixing screw 32. Since the second fixing screw 32 is arranged in the second slot 42, the second fixing screw 32 makes the second clamping part 120 slide along the fixed track. Similarly, when the guide wire 5 drives the traction end to move, the first clamping part 110 slides relative to the first fixing screw 31. Since the first fixing screw 31 is arranged in the first slot 41, the first fixing screw 31 makes the first clamping part 110 slide along the fixed track. In this way, the opening and closing of the titanium clip 1 can be controlled by the guide wire 5.

[0039] It should be noted that both the first notch 41 and the second notch 42 are arc-shaped.

[0040] In some embodiments, the first end of the first clamping portion 110 is serrated toward one side of the second clamping portion 120, and the first end of the second clamping portion 120 is serrated toward one side of the first clamping portion 110. The clamping position of the titanium clip 1 is designed to be serrated, which can increase the success rate of fixing the titanium clip 1 to the target position during use, and ensure that the titanium clip 1 is not easy to fall off after clamping.

[0041] In some embodiments, along the direction from the first end of the sleeve 2 to the second end of the sleeve 2, the sleeve 2 includes a first portion 111, a second portion 112, a third portion 113 and a fourth portion 114 connected in sequence, wherein the outer diameters of the first portion 111, the second portion 112, the third portion 113 and the fourth portion 114 are all the same. This helps to ensure that the side surface of the sleeve 2 is a relatively smooth surface, and when the sleeve 2 is introduced into the body, it is prevented from scraping the tissue in the body.

[0042] In some embodiments, along the extension direction of the first fixing screw 31, the first portion 111 includes a first fixing portion 1111 and a second fixing portion 1112 arranged at intervals and opposite to each other, the traction end of the titanium clip 1 is located between the first fixing portion 1111 and the second fixing portion 1112, the two ends of the first fixing screw 31 are respectively fixed to the first fixing portion 1111 and the second fixing portion 1112, and the two ends of the second fixing screw 32 are respectively fixed to the first fixing portion 1111 and the second fixing portion 1112. When the titanium clip 1 is unfolded, the first clip The holding portion 110 and the second clamping portion 120 extend outward from the interval area between the first fixing portion 1111 and the second fixing portion 1112; the second portion 112, the third portion 113 and the fourth portion 114 are all tubular, and the inner diameter of the third portion 113 and the inner diameter of the fourth portion 114 are both smaller than the inner diameter of the second portion 112. Along the direction from the first fixing screw 31 to the second fixing screw 32, the size of the traction end gradually decreases in the direction away from the clamping end, and the part of the traction end away from the clamping end can extend into the inner circle of the second portion 112.

[0043] In some embodiments, the inner diameter of the third part 113 is smaller than the inner diameter of the fourth part 114; the outer ring of the guide wire 5 has an anti-dropout piece 123, and when the guide wire 5 is pulled in a direction away from the titanium clip 1, the anti-dropout piece 123 passes through the inner ring of the third part 113 and enters the inner ring of the fourth part 114, and then the anti-dropout piece 123 is unfolded in the inner ring of the fourth part 114, and the width of the unfolded anti-dropout piece 123 is greater than the inner diameter of the third part 113. In this way, the fourth part 114 cooperates with the anti-dropout piece 123 to limit the guide wire 5 at the position of controlling the closing of the titanium clip 1, so as to prevent the titanium clip 1 from falling off from the target position after the guide wire 5 is disconnected.

[0044] In some embodiments, the sleeve 2 also includes a fifth part 115 and a sixth part 116, the fifth part 115 is located on the side of the fourth part 114 away from the third part 113, the sixth part 116 is located on the side of the fifth part 115 away from the fourth part 114, the outer diameter of the fifth part 115 is equal to the outer diameter of the fourth part 114, the outer diameter of the sixth part 116 is smaller than the outer diameter of the fifth part 115, the sixth part 116 extends into the first end of the catheter 20, and the inner diameter of the fifth part 115 and the inner diameter of the sixth part 116 are both smaller than the inner diameter of the fourth part 114.

[0045] In some embodiments, the inner diameter of the fifth portion 115 and the inner diameter of the sixth portion 116 are equal.

[0046] In some embodiments, the guide wire 5 has an annular rupture groove 52, and the annular rupture groove 52 is located on the portion of the guide wire 5 between the anti-dropping member 123 and the handle 22. When the guide wire 5 is pulled apart, the annular rupture groove 52 is disconnected.

[0047] The micro-lesion localization device provided by the present invention is used in minimally invasive surgery, therefore, in some embodiments, the outer diameter of the sleeve 2 is in the range of 2mm to 2.3mm, and the outer diameter of the working handle 21 is in the range of 10mm to 12mm. This helps to ensure that the end entering the human body is smaller.

[0048] In addition, it should be noted that the actual length of the conduit 20 in the present invention may be in the range of 1900 mm to 2100 mm.

[0049] In some embodiments, the working principle of the micro-lesion positioning device provided by the present invention is as follows: the positioning structure 60 is transported to the target position through the catheter 20 using the dedicated channel of the gastroenteroscope, the handle 22 is pulled to drive the guide wire 5 to move, and then the titanium clip 1 is controlled to open and close to complete the clamping task. When the guide wire 5 is broken, the positioning structure 60 stays at the target position. During surgery, the positioning structure 60 is positioned by irradiating with a light source that can excite the luminescent material to emit light, which can reduce the operation time and the required equipment, reduce the operation cost, and increase the operation efficiency.

[0050] In some embodiments, the assembly method of the micro-lesion positioning device provided by the present invention is as follows: first, use the fixing screw 3 to connect the titanium clip 1 to the guide wire 5; secondly, pass the guide wire 5 through the catheter 20 to connect it to the handle 22, and install the handle 22 on the working handle 21, and the working handle 21 is fixed to the catheter 20 through a threaded structure; finally, use the locking screw 4 to pass through the slot opened on the titanium clip 1 and fix it on the sleeve 2 to complete the overall assembly; after the assembly is completed, a luminescent material is formed on the sleeve 2.

[0051] 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.

[0052] 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 micro-lesion localization device, characterized in that: include: A positioning structure, the positioning structure comprising: a titanium clip, a sleeve and a guide wire, part of the titanium clip and part of the guide wire are arranged in the inner ring of the sleeve, the first end of the titanium clip is a clamping end, the second end of the titanium clip is a traction end, the clamping end extends from the first end of the sleeve, the part of the titanium clip between the clamping end and the traction end is slidably connected to the sleeve, the traction end is connected to the first end of the guide wire, and the second end of the guide wire extends from the second end of the sleeve, the surface of the sleeve has a luminescent material, and the luminescent material can emit light under the excitation of a light source; An introduction structure, the introduction structure comprises a catheter, a working handle and a handle, the first end of the catheter is connected to the second end of the sleeve, the second end of the catheter is connected to the working handle, the handle is arranged on the working handle, and the handle is slidable relative to the working handle, and the second end of the guide wire passes through the catheter and is connected to the handle; During use, the guide wire is pulled by the handle, and the guide wire drives the traction end to slide relative to the sleeve, so that the titanium clip is clamped at the target position, and the guide wire is pulled in a direction away from the titanium clip until the guide wire breaks, so that the positioning structure is separated from the introduction structure, and the positioning structure is clamped at the target position by the titanium clip.

2. The micro-lesion localization device 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 micro-lesion localization device according to claim 1, characterized in that: The titanium clamp comprises a first clamping part and a second clamping part, the first end of the first clamping part corresponds to the clamping end, the second end of the first clamping part corresponds to the traction end, the first end of the second clamping part corresponds to the clamping end, the second end of the second clamping part corresponds to the traction end, and the second end of the first clamping part and the second end of the second clamping part are fixed to the guide wire by a set screw; The first clamping portion has a first notch, a first fixing screw passes through the first notch, and both ends of the first fixing screw are fixed on the sleeve; The second clamping portion has a second notch, a second fixing screw passes through the second notch, and two ends of the second fixing screw are fixed on the sleeve.

4. The micro-lesion localization device according to claim 3, characterized in that: The first end of the first clamping portion is serrated toward the side of the second clamping portion, and the first end of the second clamping portion is serrated toward the side of the first clamping portion.

5. The micro-lesion localization device according to claim 3, characterized in that: In a direction from the first end of the sleeve to the second end of the sleeve, the sleeve comprises a first part, a second part, a third part and a fourth part connected in sequence, wherein the outer diameters of the first part, the second part, the third part and the fourth part are all the same; Wherein, along the extension direction of the first fixing screw, the first part includes a first fixing portion and a second fixing portion which are arranged at intervals and are opposite to each other, the traction end of the titanium clip is located between the first fixing portion and the second fixing portion, the two ends of the first fixing screw are respectively fixed to the first fixing portion and the second fixing portion, and the two ends of the second fixing screw are respectively fixed to the first fixing portion and the second fixing portion; The second part, the third part and the fourth part are all tubular, and the inner diameters of the third part and the fourth part are both smaller than the inner diameter of the second part. In the direction from the first fixing screw to the second fixing screw, the size of the traction end gradually decreases in the direction away from the clamping end, and the part of the traction end away from the clamping end can extend into the inner circle of the second part.

6. The micro-lesion localization device according to claim 5, characterized in that: The inner diameter of the third portion is smaller than the inner diameter of the fourth portion; The outer ring of the guide wire has an anti-slip component. When the guide wire is pulled in a direction away from the titanium clip, the anti-slip component passes through the inner ring of the third part and enters the inner ring of the fourth part. Thereafter, the anti-slip component is unfolded in the inner ring of the fourth part, and the width of the unfolded anti-slip component is greater than the inner diameter of the third part.

7. The micro-lesion localization device according to claim 5, characterized in that: The sleeve also includes a fifth part and a sixth part, the fifth part is located on a side of the fourth part away from the third part, the sixth part is located on a side of the fifth part away from the fourth part, the outer diameter of the fifth part is equal to the outer diameter of the fourth part, the outer diameter of the sixth part is smaller than the outer diameter of the fifth part, the sixth part extends into the first end of the catheter, and the inner diameter of the fifth part and the inner diameter of the sixth part are both smaller than the inner diameter of the fourth part.

8. The micro-lesion localization device according to claim 6, characterized in that: The guide wire has an annular rupture groove, which is located on the portion of the guide wire between the anti-dropping component and the handle. When the guide wire is pulled apart, the annular rupture groove is disconnected.

9. The micro-lesion localization device according to claim 1, characterized in that: The luminescent material is in powder form, and the surface of the sleeve has a mixture of the luminescent material and silica gel.

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