Puncture support

Abstract

The utility model discloses a puncture support, and relates to the technical field of medical instruments. The puncture support comprises a base, a main body assembly and a vertical dip angle indicator, and the main body assembly is arranged on the base in a universal rotation mode. The main body assembly comprises a horizontal dip angle indicator and a vertical dip angle indicator; the horizontal dip angle indicator is used for indicating angle difference between the main body assembly and the horizontal plane; the vertical inclination angle indicator is used for indicating the angle difference between the main body assembly and the vertical plane. According to the puncture support, whether the main body assembly is adjusted to be horizontal or not and whether the included angle between the main body assembly and the gravity direction is zero or not can be judged by directly observing the horizontal dip angle indicator and the vertical dip angle indicator, the measurement precision is effectively improved, and errors caused by proficiency, fatigue and the like in the manual measurement process are avoided; the main body assembly can rotate in any direction relative to the base, so that the main body assembly can be quickly adjusted to be horizontal, and the included angle between the main body assembly and the gravity direction is zero.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a puncture stent. Background Art

[0002] CT-guided percutaneous lung biopsy (CT-GPLB) is an important part of non-vascular pulmonary interventional technology. It is a technique that uses imaging technology (CT) scanning to locate, guide, and insert a needle to the lesion to obtain tissue for pathological diagnosis through biopsy. Before the operation, the lesion location is determined by CT scan. Then, the needle insertion point and puncture path are designed on the CT scan image. Then, the needle insertion angle of the puncture path is measured based on the horizontal line. During the operation, the needle insertion angle is controlled according to the needle insertion angle.

[0003] Currently, during surgical puncture, the calibration of the needle insertion angle and puncture plane needs to be completed by manual visual inspection. Specifically, one person needs to use a protractor to visually inspect the inclination angle of the puncture needle on the patient's foot side (from the CT image perspective) to guide the operator in inserting the needle; another person needs to visually confirm the puncture plane on the opposite side of the operator (the CT image layer where the puncture angle is measured) to guide the operator to keep the puncture needle on the puncture plane.

[0004] In addition, existing puncture needle positioning racks generally suspend the puncture guide through a bracket above the puncture object. Before the operation, the length of each rod of the bracket needs to be adjusted to align the puncture guide with the puncture point on the surface of the puncture object. However, due to the puncture object's breathing and other movements, the puncture point on the surface of the puncture object is constantly fluctuating, which not only increases the difficulty of adjusting the position of the puncture guide, but also makes it difficult to ensure that the puncture needle it guides can accurately penetrate the puncture point once the position of the puncture guide is fixed. In addition, the puncture guide of the existing technology only plays an auxiliary guiding role. When the puncture needle penetrates the puncture object, the doctor needs to hold the front end of the puncture needle to control the needle insertion. The actual puncture angle is affected by the doctor's holding angle of the needle and the direction of force applied, making it difficult to accurately maintain the set puncture angle.

[0005] In existing solutions, such as (CN112294403A), manual support is required during puncture with the puncture needle, which makes the operation inconvenient. In addition, the adjustment part in this solution is a rotating shaft design, which is difficult to adapt to the complex and changeable human body surface.

[0006] In summary, how to provide a puncture stent that can improve the puncture accuracy of a puncture needle and is easy to use is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In light of this, the present invention aims to provide a puncture holder that can be adjusted to suit different body positions and puncture surfaces by rotating the main assembly relative to the base and adjusting the main assembly according to a tilt indicator. This makes adjustment more convenient and improves puncture accuracy not only in static conditions but also in dynamic conditions such as breathing and unexpected movement. Another object of the present invention is to provide a puncture holder that also assists in securing the puncture needle, eliminating the need for a needle support and freeing up the hands of a human or robot.

[0008] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0009] A puncture stent, comprising:

[0010] A base, used to temporarily fix the device to the surface of the puncture object;

[0011] The main body component is universally rotatable on the base; the main body component includes a tilt indicator; the tilt indicator is used to indicate the angular difference between the main body component and the horizontal plane and the angular difference between the main body component and the vertical plane.

[0012] The universal rotation mentioned here refers to the main assembly being universally rotatable on the base via a spherical structure. However, due to the position, shape, and size of the base, the main assembly can only rotate on one side of the base, and the part of the main assembly that is rotatably connected to the base cannot rotate to the other side of the base. Optionally, a universal rotation assembly is also included, which includes a fixed part, a rotating part, and a locking part.

[0013] One of the fixed member and the rotating member is fixed to the base, and the other is disposed on the main assembly; and one of the fixed member and the rotating member is provided with a spherical portion, and the other is rotatable around the center of the spherical portion;

[0014] The locking member is used to lock the rotating member to the fixing member.

[0015] Optionally, one of the rotating member or the fixed member that rotates around the spherical portion is provided with a clamping portion for accommodating the spherical portion and an opening passing through a side wall of the clamping portion; the locking member is used to control the opening degree of the opening.

[0016] Optionally, an outer circumference of the rotating member or the fixed member that rotates around the spherical portion is provided with an external thread and a tapered clamping surface;

[0017] The locking member is rod-shaped and includes two ends, one end being a handle end and the other end being a locking end, the locking end including an internal thread for cooperating with the external thread and a tapered hole for cooperating with the clamping surface, and the cross-sectional size of the tapered hole gradually decreases from the opening to the bottom;

[0018] By rotating the handle of the locking member in the forward direction, the clamping surface moves relative to the tapered hole toward the bottom of the tapered hole and clamps the spherical portion, so that the rotating member is locked and fixed relative to the fixed member; by rotating the locking member in the reverse direction, the clamping surface moves relative to the tapered hole toward the opening of the tapered hole, loosening the spherical portion, so that the rotating member can rotate relative to the fixed member.

[0019] The principle of clamping can be explained with reference to the accompanying drawings, as shown in FIG. Figure 7 As shown, at this time, the locking member 530 is not tightened, the opening 5201 on the rotating member 520 is relatively large, and the rotating member 520 is rotatable relative to the fixed member 510. The locking member 530 is screwed so that the external thread 5202 of the rotating member 520 gradually moves toward the bottom of the tapered hole 5302 of the locking member 530, and the size of the opening 5201 gradually decreases until it is as shown in FIG. Figure 8 In the state shown, the rotating member 520 is locked and fixed relative to the fixing member 510.

[0020] Optionally, an anti-slip layer is provided between the spherical part or the clamping part. The anti-slip layer may be a rough layer, elastic layer, sticky layer or adsorption layer on the surface of the spherical part or the clamping part, or may be a rough layer, elastic layer, sticky layer or adsorption layer added to the outside of the surface of the spherical part or the clamping part.

[0021] Optionally, the universal rotation assembly is arranged in the main body assembly along the vertical direction in the middle section of the main body assembly, and the middle section is a plane arranged along the vertical direction and perpendicular to the vertical plane where the vertical tilt indicator is located.

[0022] Optionally, the vertical tilt indicator includes:

[0023] Gravity needle, used to indicate the direction of gravity;

[0024] A vertical protractor is used to cooperate with the gravity needle to indicate the angle between the main body component and the gravity direction.

[0025] Optionally, the vertical protractor is provided with a zero degree indication position and a plurality of offset indication positions symmetrically arranged about the zero degree indication position.

[0026] Optionally, the horizontal inclination indicator includes a spirit level, and the spirit level is provided on the main body assembly.

[0027] It should be noted that the horizontal inclination indicator can be placed at the location of the locking member.

[0028] Optionally, the number of the level is one, and the level is provided at the middle section of the main body component; (explain the middle plane)

[0029] Or there are two levels, and the two levels are symmetrically arranged about the middle section; the middle section is a plane arranged along the vertical direction and perpendicular to the vertical plane where the vertical tilt indicator is located.

[0030] Optionally, the horizontal inclination indicator further includes a horizontal protractor, and the horizontal protractor is used to display the inclination angle of the main body component relative to the horizontal plane.

[0031] Optionally, the main body assembly is provided with a positioning portion for positioning the puncture entry position of the puncture needle, and the positioning portion includes a through hole for the puncture needle to pass through and a plane for contacting the puncture point on the surface of the puncture object.

[0032] The through holes in this embodiment can be replaced by marks, arrows, etc.

[0033] Optionally, the main body assembly includes:

[0034] A guide member, wherein the guide member is provided with a plurality of needle tracks for placing the puncture needle and guiding the puncture needle during puncture, wherein the straight lines along which the plurality of needle tracks extend intersect at the positioning portion; and the guide member is provided with angle markings for corresponding one-to-one with the needle tracks;

[0035] Optionally, the guide member is provided with a guide groove running through the thickness direction thereof; the thickness direction here is Figure 1 、 Figure 2 The direction shown by the Y axis.

[0036] The needle holding assembly passes through the guide groove, is installed on the guide piece, and is used to support the puncture needle located in the needle track.

[0037] The needle holding assembly comprises:

[0038] A fixed shaft, comprising a screw, one end of which is provided with a shift piece, and the other end of which is provided with a nut for cooperating with the screw;

[0039] The fixed shaft passes through the guide groove in sequence and is connected to the nut, and an anti-slip structure is provided at the end of the screw.

[0040] Optionally, a pressing member is further provided, which is arranged between the nut and the guide member and is used to press the puncture needle located in the needle track under the action of the nut;

[0041] Optionally, the shift member is provided with a shift convex portion, the guide member is provided with a shift adjustment arc surface for corresponding to the guide groove, and the shift adjustment arc surface is provided with a plurality of shift concave portions for cooperating with the shift convex portion;

[0042] When the fixed shaft moves along the guide groove, the shift convex portion can be matched with different shift concave portions.

[0043] Of course, no specific gear position may be set, and the puncture needle may be fixed at any position within the moving range.

[0044] Optionally, the main body assembly is arranged to deviate from the positioning portion relative to the rotation center of the base.

[0045] Optionally, the main body assembly is a fan-shaped structure, and the positioning portion is provided at a top corner of the fan-shaped structure;

[0046] Or the main body assembly is a trapezoidal structure, and the positioning portion is provided on a short side of the trapezoidal structure;

[0047] Or the main body component is a triangular structure, and the positioning portion is arranged at the top corner of the triangular structure.

[0048] Optionally, the base is provided with an adhesive member, and a protective film is attached to the surface of the adhesive member.

[0049] Optionally, the base is provided with at least two independently arranged adhesive members, and the at least two adhesive members are respectively provided at two opposite edges of the base.

[0050] Optionally, the base is provided with an avoidance opening, and in a working state, the puncture needle passes through the avoidance opening.

[0051] Alternatively, the base can be set to other shapes with avoidance openings, which are determined according to actual conditions and will not be described in detail here.

[0052] Before using the puncture stent provided by the present invention, first, according to the preoperative assessment, the patient's body position should be adjusted, body surface coordinate points should be established, a CT scan should be performed, the puncture path should be planned, the puncture angle and depth should be determined, and the biopsy site should be prepared as required. This preparatory work is merely an example, and other operations that meet the requirements can also be performed. Then, the puncture stent provided by the present invention should be used and placed in the pre-puncture position on the body surface, with the positioning portion positioned at the puncture point on the surface of the puncture object. The universal steering assembly should be released to allow the main assembly to rotate relative to the base. The horizontal and vertical tilt indicators should be observed until the horizontal tilt indicator shows horizontal and the vertical tilt indicator points to the vertical mark. The universal steering assembly 5 should be locked to secure the main assembly relative to the base. The film on the puncture object should be removed (if no markings are visible), and the base should be fixed to the puncture object surface. Alternatively, after the positioning portion is placed at the puncture point on the puncture object surface, some of the film should be removed, and the horizontal and vertical tilt angles should be adjusted before fixing the base to the puncture object surface. The puncture needle is then inserted along the needle path at the preset puncture angle, and then no longer needs to be manually supported and can be fixed to the main assembly. The preset puncture angle here is the puncture angle preset during CT path planning.

[0053] Another way of using it is to allow the vertical tilt indicator not to point to the vertical mark. At this time, read the index of the gravity needle on the vertical tilt indicator, compensate for the preset puncture angle, and puncture the puncture needle along the needle track according to the compensated preset puncture angle. Then, there is no need to manually support the needle, and it can be fixed to the main assembly.

[0054] Compared with the existing technology, the puncture bracket provided by the utility model is firstly fixed to the surface of the human body instead of the bedside during use, which reduces the installation restrictions, occupied volume and alignment difficulty, and improves the device's ability to respond to changes in body position and / or patient movement; secondly, through semi-enclosed fixation and unilateral puncture needle support, without reducing the puncture accuracy and needle holding effect, it also reduces the occupied area, reserving space for multiple needle punctures; thirdly, it integrates indicators, and can directly judge whether the main body component is adjusted to a horizontal state with a zero angle with the direction of gravity by observing the integrated horizontal inclination indicator and vertical inclination indicator, avoiding other manual measurement and reference processes, effectively improving measurement accuracy, and avoiding errors caused by proficiency, fatigue, etc. during manual measurement; on the other hand, the unique main body component design can be rotated and locked in any direction relative to the base, which facilitates the adjustment of the angle of the main body component, and is conducive to quickly adjusting the main body component to a horizontal state with a zero angle with the direction of gravity, simplifying the adjustment steps. Finally, by independently and highly integrating the four functions of body surface alignment, spatial angle measurement, precise adjustment of the puncture guide device, and stable needle holding into a whole, the puncture process is significantly simplified, the puncture cost is reduced, and the puncture accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0056] Figure 1 This is a schematic structural diagram of a specific embodiment of the puncture stent provided by the present invention;

[0057] Figure 2 This is a schematic structural diagram of the puncture stent provided by the present invention from another angle;

[0058] Figure 3 This is an exploded schematic diagram of a specific embodiment of the universal rotating assembly provided by the present utility model;

[0059] Figure 4 for Figure 3 A schematic cross-sectional view of the locking member of the universal joint assembly;

[0060] Figure 5 for Figure 3 A schematic cross-sectional view of the fixing member of the universal joint assembly;

[0061] Figure 6 for Figure 3 Axial side diagram of the universal joint assembly;

[0062] Figure 7 for Figure 3 A cross-sectional schematic diagram of the universal joint assembly in an unlocked state;

[0063] Figure 8 for Figure 3 A cross-sectional diagram of the universal joint assembly in a locked state;

[0064] Figure 9 for Figure 3 A cross-sectional diagram of the universal joint assembly installed on the main assembly;

[0065] Figure 10 for Figure 3 A schematic diagram of the structure of the installation position of the central universal rotating assembly in the main assembly;

[0066] Figure 11 This is a schematic structural diagram of the needle holding assembly of the puncture stent;

[0067] Figure 12 This is an exploded schematic diagram of the needle holding assembly of the puncture stent provided by the present invention;

[0068] Figure 13 for Figure 15 An exploded schematic diagram of the needle holding assembly of the mid-puncture stent from another angle;

[0069] Figure 14 This is a bottom view schematic diagram of the puncture stent provided by the utility model;

[0070] Figure 15 This is a schematic top view of the puncture stent provided by the present invention;

[0071] Figure 16 This is a front view schematic diagram of the puncture stent provided by the utility model;

[0072] Figure 17 This is a rear view schematic diagram of the puncture stent provided by the utility model;

[0073] Figure 18 This is a left side schematic diagram of the puncture stent provided by the present invention;

[0074] Figure 19 This is a schematic right side view of the puncture stent provided by the present invention.

[0075] Figures 1-19 middle:

[0076] 1 is the base;

[0077] 110 is a protective film and 120 is an escape opening.

[0078] 2 is the main component;

[0079] 210 is a positioning portion;

[0080] 220 is a guide member, 2201 is a needle track, 2202 is a guide groove, 2203 is a gear adjustment arc surface, and 2203a is a gear concave portion;

[0081] 230 is a first shell structure, 240 is a second shell structure;

[0082] 3 is the horizontal tilt indicator;

[0083] 310 is a level;

[0084] 4 is the vertical tilt indicator;

[0085] 410 is a gravity needle, 420 is a vertical protractor;

[0086] 5 is a universal rotation component;

[0087] 510 is a fixing member, 5101 is a spherical part;

[0088] 520 is a rotating part, 5201 is an opening, 5202 is an external thread, 5203 is a clamping surface, and 5204 is a clamping part;

[0089] 530 is a locking piece, 5301 is an internal thread, and 5302 is a tapered hole;

[0090] 6 is a puncture needle;

[0091] 7 is a needle holding assembly, 710 is a fixed shaft, 7101 is a screw, 71011 is an anti-slip structure, 7102 is a shift piece, 71021 is a shift convex portion, 720 is a nut, 730 is a pressing piece, and 7301 is a clamping piece. DETAILED DESCRIPTION

[0092] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0093] The core of this utility model is to provide a puncture bracket, which can adjust the main body assembly to be horizontal and with an angle of zero with the direction of gravity by rotating the main body assembly relative to the base and observing the spirit level and the gravity needle at the same time. The adjustment process is convenient and can effectively improve the accuracy of puncture.

[0094] It should be noted that, in the actual operation, the doctor selects a suitable puncture plane based on the CT scan results, selects the puncture plane P1 based on the area of ​​the lesion section, and then determines the puncture point, puncture angle, and needle insertion depth on the CT scan image of the puncture plane. Finally, based on the puncture plane, puncture point, puncture angle, and needle insertion depth determined above, the doctor controls the insertion of the puncture needle 6 to complete the puncture process. Among them, the puncture point is the intersection of the puncture path and the human body surface, which can also be called the needle insertion point. The puncture point is located in the puncture plane; the puncture angle is the angle between the puncture path and the puncture reference plane. The puncture reference plane is the reference plane for measuring the puncture angle. In order to conform to the general operating habits of doctors, the puncture reference plane is generally a horizontal plane. In other embodiments, the puncture reference plane can also be a vertical plane, or any plane between the horizontal plane and the vertical plane, as long as it can serve as a reference for the puncture angle.

[0095] This specific embodiment discloses a puncture stent, comprising a base 1 and a main body assembly 2. The base 1 is used to be fixedly arranged on the surface of the puncture object in the working state; the main body assembly 2 is universally rotatable and arranged on the base 1; the main body assembly 2 includes a horizontal tilt indicator 3 and a vertical tilt indicator 4; the horizontal tilt indicator 3 is used to indicate the angle difference between the main body assembly 2 and the horizontal plane; the vertical tilt indicator 4 is used to indicate the angle difference between the main body assembly 2 and the vertical plane, and the vertical plane mentioned here is parallel to Figure 1 A plane in the YZ plane.

[0096] Combine Figures 1-13 As shown, for the convenience of explanation, a Cartesian coordinate system is established, in which the X direction is as Figure 1 As shown, the width direction of the main component 2; the Z direction is the height direction of the main component 2; and the Y direction is the thickness direction of the main component 2.

[0097] The tilt indicator includes a horizontal tilt indicator 3 and a vertical tilt indicator 4, such as Figure 2 As shown, the vertical inclination indicator 4 is arranged on a side of the main body component 2 facing away from the puncture needle 6.

[0098] It should be noted that the horizontal inclination indicator 3 in this specific embodiment may include a level meter 310, and the level meter 310 is provided on the main assembly 2. The level meter 310 can be used to intuitively determine whether the main assembly 2 is in a horizontal state.

[0099] The horizontal inclination indicator 3 may also be other measuring tools for displaying the horizontal state, which is determined according to actual conditions.

[0100] When the horizontal inclination indicator 3 includes a level 310, the number of the level 310 can be set to one, and the level 310 is set at the middle section of the main component 2. The middle section mentioned here is the section perpendicular to the horizontal plane and parallel to the main component 2. Figure 1 The plane in the YZ direction is located in the middle section of the main assembly 2. The level 310 is placed in the middle section of the main assembly 2 to facilitate observation of the angle between the main assembly 2 and the horizontal plane. This makes it easier for the operator to adjust the universal rotation assembly without being blocked, and realizes a functional and structural integrated design.

[0101] Alternatively, two levels 310 may be provided, such as Figure 2 As shown, the two levels 310 are symmetrically arranged about the middle section. The middle section mentioned here is the section in the main assembly 2 that is perpendicular to the horizontal plane and parallel to the horizontal plane. Figure 2 Two levels 310 are provided on the plane where the YZ direction is located, so that the information of the angle between the main component 2 and the horizontal plane can be obtained more accurately, and the situation in which a single level 310 fails to be used normally can be avoided.

[0102] Alternatively, the horizontal inclination indicator 3 may further include a horizontal protractor, which is used to display the inclination angle of the main component 2 relative to the horizontal plane. The vertical angle between the main component 2 and the horizontal plane can be observed more intuitively, making corresponding adjustments to the specific angle convenient.

[0103] The vertical tilt indicator 4 mentioned in this specific embodiment includes a gravity needle 410 and a vertical protractor 420, wherein the gravity needle 410 is used to indicate the direction of gravity in a vertical plane perpendicular to the horizontal plane; the vertical protractor 420 is used to cooperate with the gravity needle 410 to indicate the angle between the main assembly 2 and the gravity direction. Figure 2 As shown, the vertical protractor 420 is provided with a zero degree indication position and a plurality of offset indication positions symmetrically arranged about the zero degree indication position.

[0104] During actual use, when the gravity needle 410 indicates at the zero-degree indication position, it means that the gravity needle 410 is set along the gravity direction at this time. When the gravity needle 410 indicates at the offset indication position, the angle between the direction indicated by the gravity needle 410 and the gravity direction can be judged according to the specific value of the offset indication position. The operation process is convenient and the angle between the main component 2 and the gravity direction can be accurately obtained.

[0105] Specifically, the shell of the main component 2 is provided with a reserved position specifically for installing the gravity needle 410, and a zero-degree indication position is provided at a corresponding position of the main component 2, thereby realizing the integration of structure and function.

[0106] During specific use, when the gravity needle 410 indicates at the zero-degree indication position, the puncture needle 6 is installed in the corresponding needle channel 2201 according to the puncture angle. When the gravity needle 410 indicates at the offset indication position, the angle indicated by the offset indication position must be increased or decreased based on the puncture angle when installing the puncture needle 6. Specifically, for example, the offset angle indicated by the offset indicator on one side of the zero-degree indicator is a positive value, and the offset angle indicated by the offset indicator on the other side of the zero-degree indicator is a negative value. When the gravity needle 410 indicates a positive value of 30°, it means that the gravity needle 410 is deflected 30° in the positive direction relative to the direction of gravity. If the puncture angle is 50°, the gravity needle 410 needs to be installed in the needle channel 2201 corresponding to 20° for puncture; when the gravity needle 410 indicates a negative value of 30°, it means that the gravity needle 410 is deflected 30° in the negative direction relative to the direction of gravity. If the puncture angle is 50°, the gravity needle 410 needs to be installed in the needle channel 2201 corresponding to 80° for puncture.

[0107] Before, first, according to the preoperative assessment, the patient's body position can be placed, the body surface coordinate points can be established, a CT scan can be performed, the puncture path can be planned, the puncture angle and depth can be determined, and the biopsy site can be prepared as required. This part of the preparation work is only for example, and other operations that meet the requirements can also be performed; then use the puncture bracket provided by the utility model and place the puncture bracket in the pre-puncture position on the body surface, rotate the main component 2 relative to the base 1, and observe the status of the horizontal inclination indicator 3 and the vertical inclination indicator 4 until the horizontal inclination indicator 3 shows horizontal and the vertical inclination indicator 4 points to the vertical mark, and fix the main component 2 relative to the base 1, so that the positioning part 210 is placed at the puncture point on the surface of the puncture object, and fix the base 1 to the surface of the puncture object; then fix the puncture needle 6 to the main component 2 according to the puncture angle and perform puncture.

[0108] Compared to the prior art, the puncture stent provided in this specific embodiment is, during use, firstly, arranged on the surface of the puncture object by the base 1, so that the device can be applied to any human body position, part and puncture scene, and can maintain a stable relative position relationship with the intentional and unintentional movements of the human body. Secondly, the main component can be universally rotatably arranged on the base, which facilitates the wide range and multi-dimensional adjustment and locking of the angle of the main component 2, and is conducive to quickly adjusting the main component 2 to the working state. In addition, by directly observing the inclination indicator, it is possible to directly and quantitatively determine whether the main component 2 is adjusted to the working state, avoiding the process of auxiliary manual measurement, effectively improving the adjustment accuracy, avoiding errors caused by proficiency, fatigue, etc. during the manual assisted measurement process, simplifying the adjustment steps, and improving the puncture efficiency.

[0109] In a specific embodiment, the puncture bracket also includes a universal rotating assembly 5, which includes a fixed part 510, a rotating part 520 and a locking part 530; one of the fixed part 510 and the rotating part 520 is fixed to the base 1, and the other is arranged on the main assembly 2; and one of the fixed part 510 and the rotating part 520 is provided with a spherical part 5101, and the other can rotate around the center of the spherical part 5101; the locking part 530 is used to lock the rotating part 520 to the fixed part 510.

[0110] Specifically, one of the rotating part 520 and the fixed part 510 that rotates around the spherical part 5101 can be provided with a clamping part 5204 for accommodating the spherical part 5101 and an opening 5201 passing through the side wall of the clamping part 5204; the locking part 530 is used to control the opening degree of the opening 5201 to lock or loosen the spherical part 5101, so that the rotating part 520 is locked or rotated relative to the fixed part 510. It is easy to manufacture, convenient to operate, reliable in locking, and does not require an additional locking structure.

[0111] In the actual setting process, an outer thread 5202 and a tapered clamping surface 5203 can be provided on the outer periphery of one of the rotating member 520 and the fixing member 510 that rotates around the spherical portion 5101. The locking member 530 includes an inner thread 5301 for cooperating with the outer thread 5202 and a tapered hole 5302 for cooperating with the clamping surface 5203. The cross-sectional size of the tapered hole 5302 gradually decreases from the opening 5201 to the bottom. When the locking member 530 is rotated forward, the clamping surface 5203 is tightened. 203 moves relative to the tapered hole 5302 toward the bottom of the tapered hole 5302, the size of the opening 5201 gradually decreases and clamps the spherical portion 5101, so that the rotating member 520 is locked and fixed relative to the fixed member 510; the locking member 530 is rotated in the opposite direction, the clamping surface 5203 moves relative to the tapered hole 5302 toward the opening of the tapered hole 5302, and the size of the opening 5201 gradually increases, so that the rotating member 520 rotates relative to the fixed member 510.

[0112] like Figure 3 As shown, the outer periphery of the rotating member 520 is provided with an external thread 5202 and a conical clamping surface 5203, as shown in FIG. Figure 4 As shown, the locking member 530 includes an internal thread 5301 for cooperating with the external thread 5202 and a tapered hole 5302 for cooperating with the clamping surface 5203. Figure 5 As shown, the rotating member 520 is provided with a clamping portion 5204 for accommodating the spherical portion 5101. Figure 7 As shown, at this time, the locking member 530 is not tightened, the opening 5201 on the rotating member 520 is relatively large, and the rotating member 520 is rotatable relative to the fixed member 510. The locking member 530 is screwed so that the external thread 5202 of the rotating member 520 gradually moves toward the bottom of the tapered hole 5302 of the locking member 530, and the size of the opening 5201 gradually decreases until it is as shown in FIG. Figure 8 In the state shown, the rotating member 520 is locked and fixed relative to the fixing member 510.

[0113] In this specific embodiment, unlocking, adjustment and locking can be achieved by twisting, the operation process is convenient, the deviation can be corrected immediately, and no additional space is occupied, making the structural layout more reasonable.

[0114] In actual use, Figure 7 In the shown state, the main body assembly 2 can be rotated arbitrarily relative to the base 1 until the horizontal tilt indicator 3 shows horizontal and the vertical tilt indicator 4 points to the vertical mark or a specific angle value. The locking member 530 is rotated to lock the rotating member 520 relative to the fixing member 510 to maintain the stability of the puncture needle 6 during the puncture process and improve the puncture accuracy.

[0115] In this specific embodiment, the universal rotation assembly 5 is provided so that the main assembly 2 can rotate arbitrarily relative to the base 1, and the universal rotation assembly 5 has a simple structure and is easy to operate.

[0116] Furthermore, the extension direction of the opening 5201 can have a component along the central axis of the external thread 5202. Preferably, the extension direction of the opening 5201 is set along the central axis of the rotating part 520. During the process of screwing the locking part 530, the opening 5201 can have a larger opening and closing degree, which is conducive to achieving rapid locking or loosening and improving work efficiency. In addition, the design of the opening is convenient for processing and manufacturing.

[0117] like Figure 9 、 Figure 10 As shown, the universal rotation assembly 5 is provided in the main assembly 2 along the vertical direction in the middle section of the main assembly 2. The middle section is a plane provided in the vertical direction and perpendicular to the vertical plane where the vertical tilt indicator 4 is located. The middle section mentioned here is a plane in the main assembly 2 that is perpendicular to the horizontal plane and parallel to the horizontal plane. Figure 1 、 Figure 2 The plane in which the YZ direction lies.

[0118] The universal joint assembly 5 is inserted into the main assembly 2 along the vertical direction of the middle cross-section of the main assembly 2. On the one hand, the space occupied by the universal joint assembly 5 in the X direction of the main assembly 2 is reduced, and the space occupied by the universal joint assembly 5 in the Z direction of the main assembly 2 is mainly occupied, which is conducive to the rational use of space. In addition, the main assembly 2 is symmetrically arranged about the middle cross-section, so that the main assembly 2 is symmetrically arranged about the universal joint assembly 5 in the X direction, which is conducive to the rational distribution of the counterweight of the main assembly 2 in the X direction.

[0119] During actual use, the base 1 can be located in a plane parallel to the horizontal plane, or the base 1 can be rotated around the Y-axis relative to the main assembly 2, or the base 1 can be rotated around the X-axis relative to the main assembly 2, or it can be rotated around multiple axes simultaneously, depending on the actual situation.

[0120] In a specific embodiment, the main body component 2 is provided with a positioning portion 210 for positioning the puncture entry position of the puncture needle 6. The positioning portion 210 includes a through hole for the puncture needle 6 to pass through and a plane for contacting the puncture point on the surface of the puncture object.

[0121] During specific use, after determining the puncture point, the plane of the lower part of the positioning part 210 needs to be aligned with the puncture point. By placing the positioning part 210 at the puncture point on the surface of the puncture object, the lower part of the positioning part 210 is set as a plane, which is convenient for alignment with the puncture point. The puncture position of the puncture needle 6 can be pre-positioned, so that the puncture needle 6 penetrates from the puncture point along the positioning part 210, thereby improving the accuracy of the puncture position.

[0122] Based on the above embodiment, the main body assembly 2 can include a first shell structure 230 and a second shell structure 240 that are arranged in a snap-fit ​​configuration. This snap-fit ​​configuration facilitates structural assembly and effectively improves the stability of the structural connection. Furthermore, the main body assembly 2 is configured as a structure in which the first shell structure 230 and the second shell structure 240 snap together, thereby providing load-bearing and storage space, as well as indicating marks, adjustment space, and a needle holder. Furthermore, the structure is easy to manufacture, achieving functional and structural integration.

[0123] Different shapes of the main body assembly 2 can be provided with different first shell structures 230 and second shell structures 240 .

[0124] In a specific embodiment, the main body component 2 includes a guide member 220 and a needle holding assembly 7, wherein the guide member 220 is provided with a plurality of needle tracks 2201 for placing the puncture needle 6 and guiding the puncture needle 6 during puncture, and the straight lines in which the extension directions of the plurality of needle tracks 2201 intersect at the positioning portion 210; and the guide member 220 is provided with angle marks for one-to-one correspondence with the needle tracks 2201; the needle holding assembly 7 is installed on the guide member 220, and is used to support the puncture needle 6 located in the needle track 2201.

[0125] The needle track 2201 serves to limit the position of the puncture needle 6, preventing it from accidentally swinging and providing a positioning guide. Furthermore, it prevents the needle from slipping during and after locking. The needle track 2201 is provided on the housing, eliminating the need for additional parts and saving material.

[0126] like Figure 12 As shown, the needle tracks 2201 are radially arranged in the main assembly 2. For each needle track 2201, the corresponding puncture angle needs to be marked to facilitate the installation of the puncture needle 6 into the needle track 2201 of the corresponding puncture angle.

[0127] Combine Figure 11 、 Figure 12 As shown, the guide member 220 is provided with a guide groove 2202 running through the thickness direction thereof, and the needle holding assembly 7 includes a fixed shaft 710, a nut 720 and a pressing member 2303, wherein the fixed shaft 710 includes a screw 7101 and a shift member 7102 arranged at one end of the screw 7101, and the screw 7101 is arranged through the guide groove 2202; the nut 720 is used to cooperate with the end of the screw 7101 extending out of the guide groove 2202; the pressing member 2303 is arranged between the nut 720 and the guide member 220, and is used to press the puncture needle 6 located in the needle channel 2201 under the action of the nut 720; one end of the fixed shaft 710 passes through the guide groove 2202 and the pressing member 2303 in sequence and is connected to the nut 720.

[0128] In this embodiment, the needle holding assembly 7 compresses the puncture needle 6 via a clamping member 730. The clamping member 730 secures the puncture needle 6 by tightening the nut 720, making the operation convenient. Furthermore, during the puncture procedure, there is no need to manually secure the puncture needle 6, simplifying the operation. After the puncture needle 6 is clamped by the device, the puncture needle and the puncture assist device form a quadrilateral structure in the YZ plane, which stabilizes the needle and is not easily affected by the weight of the puncture needle, thereby maintaining the puncture point and puncture path in a desired working state.

[0129] like Figure 11 As shown, the shift member 7102 is provided with a shift protrusion 71021, the guide member 220 is provided with a shift adjustment arc surface 2203 corresponding to the guide groove 2202, and the shift adjustment arc surface 2203 is provided with a plurality of shift recesses 2203a for cooperating with the shift protrusion 71021; when the fixed shaft 710 moves along the guide groove 2202, the shift protrusion 71021 can cooperate with different shift recesses 2203a.

[0130] Through the cooperation between the gear protrusion 71021 and the gear recess 2203a, the puncture needle 6 can be fixed in different needle channels 2201. The cooperation between the gear protrusion 71021 and the gear recess 2203a can also prevent the gear member 7102 from slipping relative to the guide member 220, thereby improving the stability of the puncture needle 6 fixation.

[0131] During use, the puncture needle 6 is first placed in the corresponding needle channel 2201. The screw 7101 of the fixed shaft 710 is then passed through the guide groove 2202 and the pressing member 2303 in sequence. The nut 720 is screwed onto the screw 7101. The gear protrusion 71021 on the gear member 7102 is engaged with the corresponding gear recess 2203a on the gear adjustment arc surface 2203. The nut 720 is then screwed until the pressing member 2303 presses the puncture needle 6. When the puncture needle 6 needs to be removed, the nut 720 is first screwed to release the pressing member 2303 from pressing the puncture needle 6, and then the puncture needle 6 is removed.

[0132] Further, if Figure 12 As shown, an anti-slip structure 71011 can be set at the end of the screw 7101. The anti-slip structure 71011 is set on the radial protrusion of the screw 7101, which can effectively prevent the screw 7101 and the nut 720 from loosening and detaching.

[0133] like Figure 13 As shown, clamping members 7301 are provided on both sides of the pressing member 730 , which can effectively fix the puncture needle 6 and prevent the clamping members 7301 from being stuck on both sides of the needle channel 2201 , thereby achieving effective fixation of the pressing member 730 .

[0134] On the basis of the above embodiment, the main body component 2 can be set away from the positioning portion 210 relative to the rotation center of the base 1, which facilitates the arrangement of the structure and reserves enough space for the puncture needle 6 to pass through.

[0135] According to different actual conditions, the main component 2 can be set to a fan-shaped structure, such as Figure 1 、 Figure 2 As shown, the positioning portion 210 is arranged at the top corner of the fan-shaped structure. During the rotation of the base 1 relative to the main body component 2, the fan-shaped main body component 2 can effectively avoid the main body component 2 from interfering with the object to be punctured too early, which is beneficial to increase the angular range of rotation of the base 1 relative to the main body component 2; the main body component 2 can also be set as a trapezoidal structure, and the positioning portion 210 is set at the short side of the trapezoidal structure; the main body component 2 can also be set as an isosceles triangle structure, and the positioning portion 210 is set at the top corner of the isosceles triangle structure; of course, the main body component 2 can also be other shapes, which are determined according to actual conditions and will not be elaborated here.

[0136] In this specific embodiment, by setting the main component 2 to a fan-shaped structure, a trapezoidal structure, or an isosceles triangle structure, the inclination angle of the main component 2 relative to the base 1 can be guaranteed, thereby avoiding the inclination of the main component 2 relative to the base 1 due to interference of the main component 2.

[0137] Based on the above embodiment, to facilitate detachable fixing of the base 1 to the puncture target, an adhesive member can be provided at the bottom of the base 1, and a protective film 110 can be applied to the surface of the adhesive member. During use, after the base 1 is fixed in the correct position, the protective film 110 can be removed, allowing the base 1 to adhere to the surface of the patient to be punctured.

[0138] Furthermore, the adhesive can have at least two protective films, with at least two adhesives positioned at opposite edges of the base 1. During use, one protective film 110a is first removed to temporarily secure the device. Once the base 1's bonding position is adjusted, the other protective film 110b is then removed. This prevents the adhesive from being less secure due to the prior removal of protective film 110 during fine-tuning of the base 1. The other protective film 110b has a handle on its edge, allowing the operator to remove it when the adhesive is about to be secured to the skin.

[0139] To facilitate the passage of the puncture needle 6, the base 1 can be configured with a structure having an escape opening 120, such as a U-shaped structure. In operation, the puncture needle 6 passes through the opening 5201 of the U-shaped structure. The U-shaped base is easy to manufacture and can reserve space for the puncture needle 6. Of course, the base 1 can also be configured with other structures having an escape opening 120 besides the U-shaped structure. The specific configuration depends on actual conditions and will not be elaborated here.

[0140] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. Any combination of all the embodiments provided by this utility model is within the scope of protection of this utility model and will not be described in detail here.

[0141] The above describes in detail the puncture stent provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A puncture stent, characterized in that: include: A base (1) is used for being fixedly arranged on the surface of a puncture object in a working state; A main body component (2) is universally rotatably arranged on the base (1); The main body component (2) comprises a tilt indicator; the tilt indicator is used to indicate the angular difference between the main body component (2) and a horizontal plane and the angular difference between the main body component (2) and a vertical plane.

2. The puncture stent according to claim 1, characterized in that: The main body component (2) or the base (1) is provided with a positioning portion (210) for positioning the puncture entry position of the puncture needle (6); The main body component (2) is a fan-shaped structure, and the positioning portion (210) is arranged at a top corner of the fan-shaped structure; Or the main body component (2) is a trapezoidal structure, and the positioning portion (210) is arranged on a short side of the trapezoidal structure; Or the main body component (2) is an isosceles triangle structure, and the positioning portion (210) is arranged at the vertex of the isosceles triangle structure.

3. The puncture stent according to claim 2, characterized in that: The positioning portion (210) comprises a through hole for allowing the puncture needle (6) to pass through, and a plane for contacting a puncture point on the surface of a puncture object.

4. The puncture stent according to claim 1, characterized in that: The main body assembly (2) comprises a first shell structure (230) and a second shell structure (240) that are fastened together.

5. The puncture stent according to claim 2, characterized in that: The main body component (2) includes a guide member (220), the guide member (220) is provided with a plurality of needle tracks (2201) for placing the puncture needle (6) and guiding the puncture needle (6) during puncture, and the straight lines on which the extension directions of the plurality of needle tracks (2201) intersect with the positioning portion (210); and the guide member (220) is provided with angle marks for corresponding one-to-one with the needle tracks (2201); The puncture support further comprises a needle holding assembly (7), which is mounted on the guide member (220) and is used to support the puncture needle (6) located in the needle channel (2201).

6. The puncture stent according to claim 5, characterized in that: The guide member (220) is provided with a guide groove (2202) extending through the thickness direction thereof. The needle holding assembly (7) comprises: A fixed shaft (710) includes a screw (7101) and a shift member (7102) disposed at one end of the screw (7101); a nut (720), adapted to cooperate with the screw (7101); A pressing member (730) is provided between the nut (720) and the guide member (220) and is used to press the puncture needle (6) located in the needle channel (2201) under the action of the nut (720); One end of the fixed shaft (710) passes through the guide groove (2202), the pressing member (730) in sequence, and is connected to the nut (720).

7. The puncture stent according to claim 6, characterized in that: The shift member (7102) is provided with a shift convex portion (71021), the guide member (220) is provided with a shift adjustment arc surface (2203) for corresponding to the guide groove (2202), and the shift adjustment arc surface (2203) is provided with a plurality of shift concave portions (2203a) for cooperating with the shift convex portion (71021); When the fixed shaft (710) moves along the guide groove (2202), the gear position protrusion (71021) can cooperate with different gear position recesses (2203a).

8. The puncture stent according to any one of claims 1 to 7, characterized in that: The base (1) is provided with an adhesive component, and a protective film (110) is attached to the surface of the adhesive component.

9. The puncture stent according to claim 8, characterized in that: The base (1) is provided with at least two independently arranged adhesive members, and the at least two adhesive members are respectively provided at two opposite edges of the base (1).

10. The puncture stent according to any one of claims 2, 3, 5, 6 or 7, characterized in that: The base (1) is provided with an escape opening (120), and the puncture needle (6) passes through the escape opening (120).

11. The puncture stent according to claim 1, characterized in that: The tilt indicator comprises a vertical tilt angle indicator (4), and the vertical tilt angle indicator (4) comprises: A gravity needle (410) is used to indicate the direction of gravity in a vertical plane perpendicular to the horizontal plane; A vertical protractor (420) is used to cooperate with the gravity needle (410) to indicate the angle between the main body component (2) and the gravity direction.

12. The puncture stent according to claim 11, characterized in that: The vertical protractor (420) is provided with a zero degree indication position and a plurality of offset indication positions symmetrically arranged about the zero degree indication position.

13. The puncture stent according to claim 1, characterized in that: The tilt indicator comprises a horizontal tilt angle indicator (3), the horizontal tilt angle indicator (3) comprises a level (310), and the level (310) is arranged on the main body component (2).

14. The puncture stent according to claim 13, characterized in that: The number of the level (310) is one, and the level (310) is arranged at a middle section of the main body component (2); Or the number of the level (310) is two, and the two level (310) are symmetrically arranged about the middle cross section; The middle cross section is a plane arranged along the vertical direction and perpendicular to the vertical plane where the vertical tilt indicator (4) is located.

15. The puncture stent according to claim 1, characterized in that: It also includes a universal rotation assembly (5), wherein the universal rotation assembly (5) includes a fixing member (510), a rotating member (520), and a locking member (530); One of the fixed member (510) and the rotating member (520) is fixed to the base (1), and the other is arranged on the main body component (2); and one of the fixed member (510) and the rotating member (520) is provided with a spherical portion (5101), and the other can rotate around the center of the spherical portion (5101); The locking member (530) is used to lock the rotating member (520) to the fixing member (510).

16. The puncture stent according to claim 15, characterized in that: One of the rotating member (520) and the fixed member (510) that rotates around the spherical portion (5101) is provided with a clamping portion (5204) for accommodating the spherical portion (5101) and an opening (5201) that passes through the side wall of the clamping portion (5204); the locking member (530) is used to control the opening of the opening (5201).

17. The puncture stent according to claim 16, characterized in that: The outer periphery of one of the rotating member (520) and the fixed member (510) that rotates around the spherical portion (5101) is provided with an external thread (5202) and a tapered clamping surface (5203); The locking member (530) comprises an internal thread (5301) for cooperating with the external thread (5202) and a tapered hole (5302) for cooperating with the clamping surface (5203), wherein the cross-sectional dimension of the tapered hole (5302) gradually decreases from the opening (5201) to the bottom; When the locking member (530) is rotated forward, the clamping surface (5203) moves relative to the tapered hole (5302) toward the bottom of the tapered hole (5302), the size of the opening (5201) gradually decreases, and the spherical portion (5101) is clamped, so that the rotating member (520) is locked and fixed relative to the fixed member (510); when the locking member (530) is rotated backward, the clamping surface (5203) moves relative to the tapered hole (5302) toward the opening of the tapered hole (5302), and the size of the opening (5201) gradually increases, so that the rotating member (520) rotates relative to the fixed member (510).

18. The puncture stent according to claim 15, characterized in that: The universal rotation assembly (5) is arranged through the main body assembly (2) along a vertical direction in a middle section of the main body assembly (2), and the middle section is a plane arranged along the vertical direction and perpendicular to the vertical plane where the vertical tilt indicator (4) is located.

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