Clamping structure
By designing a clamping structure for puncture surgery, the problem of insufficient accuracy and stability of the puncture needle during the puncture process is solved, and higher puncture reliability and safety are achieved.
Patent Information
- Application Number
- CN202420934517.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When performing puncture under ultrasound guidance, prior art is difficult to ensure the accuracy and stability of the puncture needle, especially when finding the best puncture point and performing the puncture action.
A clamping structure is designed, including a needle passage, an elastic member and a pressing cap, the puncture needle is clamped by the first clamping end and the second clamping end, and the optimal puncture point is marked with a marking structure prior to the puncture.
It improves the reliability and stability of the puncture needle during the puncture process, ensures the accuracy and safety of the puncture needle, and is convenient for medical staff to operate.
Smart Images
Figure CN222565945U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a clamping structure. Background Art
[0002] Minimally invasive technology guided by ultrasound equipment is increasingly widely used in clinical practice. Doctors can use ultrasound equipment to determine the location of lesions or blood vessels, and then use a puncture needle to puncture the abdominal wall to achieve precise biopsy, ablation, staining and anesthesia. Compared with manual puncture, under the guidance of a puncture stand or puncture clamp, the puncture needle can accurately move along the guide line or guide area indicated by the ultrasound device, and the position of the needle tip can be observed in real time through ultrasound equipment to assist medical staff in completing the puncture, so that the puncture needle can accurately reach the target position. Utility Model Content
[0003] The utility model provides a clamping structure, which can cooperate with the ultrasonic probe to find the best needle insertion point before the puncture needle punctures and mark it with the identification structure, and then clamp the puncture needle with the first clamping end and the second clamping end to perform the puncture action, thereby effectively improving the reliability and stability of the puncture needle during the puncture process.
[0004] The utility model provides a clamping structure for assisting puncture surgery, the clamping structure comprising a needle channel member, an elastic member and a pressing cover rotatably matched with the needle channel member, the needle channel member having a first clamping end, the pressing cover having a second clamping end, the two ends of the elastic member respectively abutting against the needle channel member and the pressing cover, so as to drive the first clamping end toward the second clamping end and always maintain elastic force for clamping the puncture needle;
[0005] Wherein, one of the needle channel member and the pressing cover is provided with an identification structure, and the identification structure is arranged at the needle outlet end of the clamping structure and is used to mark the puncture position of the puncture needle.
[0006] In the clamping structure of one embodiment of the utility model, the first clamping end includes a guide needle slide arranged on the needle track member and used to place the puncture needle, and the second clamping end includes an abutment boss arranged on the pressing cover and adapted to the guide needle slide, and the abutment boss cooperates with the guide needle slide to limit the puncture needle so that the puncture needle moves along the length direction of the guide needle slide.
[0007] In the clamping structure of one embodiment of the utility model, the identification structure includes an indentation protrusion for compressing the skin to produce an indentation, the extension direction of the indentation protrusion is the same as the direction of the needle head of the puncture needle, at least part of the guide needle slide is formed on the indentation protrusion or the indentation protrusion is an extension part of the abutment boss.
[0008] In the clamping structure of one embodiment of the present invention, the size of the indentation protrusion gradually decreases from the connection between the indentation protrusion and the needle channel member toward the side away from the needle channel member to form a pressing portion with a curved surface.
[0009] In the clamping structure of one embodiment of the present invention, the guide needle slide has a first groove surface and a second groove surface that are relatively inclined, and the distance between the first groove surface and the second groove surface gradually increases toward the opening direction of the guide needle slide.
[0010] In the clamping structure of one embodiment of the utility model, the abutment boss has an abutment plane for applying a pressing force to the puncture needle. After the puncture needle with a diameter of 0.81 mm to 2.41 mm is placed on the guide needle slide, the abutment plane abuts at least one of the puncture needles and is perpendicular to the center plane of the guide needle slide.
[0011] In the clamping structure of one embodiment of the utility model, the first groove surface and the second groove surface are symmetrically arranged relative to the center plane of the guide needle slide, and the abutment plane abuts against the circumferential surface of the puncture needle with a diameter of 1.61 mm and is perpendicular to the center plane.
[0012] In the clamping structure of one embodiment of the present invention, the shortest distance between the abutment plane and the bottom of the guide needle slideway is between 0.65 mm and 0.75 mm.
[0013] In the clamping structure of one embodiment of the present invention, the first groove surface and the second groove surface are symmetrically arranged relative to the center plane of the guide needle slide, and the inclination angles of the first groove surface and the second groove surface to the center plane are between 31 degrees and 33 degrees.
[0014] In the clamping structure of one embodiment of the utility model, the guide needle slide also includes a connecting arc surface, one end of the connecting arc surface is connected to the first groove surface, and the other end of the connecting arc surface is connected to the second groove surface.
[0015] In the clamping structure of one embodiment of the present utility model, the clamping structure further comprises a position sensor for transmitting a position signal, and the position sensor is arranged in the needle track component and is parallel to or coplanar with the center plane of the needle guide slideway.
[0016] In the clamping structure of one embodiment of the present invention, the needle channel member includes a shell and a cover body, a mounting groove is formed in the shell, the position sensor is fixed in the mounting groove, and the cover body covers the open portion of the mounting groove.
[0017] In the clamping structure of one embodiment of the utility model, the clamping structure further comprises a connecting joint for connecting to a receiving device, and the position sensor in the needle channel member transmits data with the connecting joint via a cable; or,
[0018] The clamping structure further comprises a wireless communication module for wireless data transmission with a receiving device, and the wireless communication module is arranged in the needle track member.
[0019] The technical solution provided by the embodiment of the present application may include the following beneficial effects: the present application designs a clamping structure, which can cooperate with the ultrasonic probe to find the best puncture point and mark it with the identification structure before the puncture needle punctures, and then clamp the puncture needle through the first clamping end and the second clamping end to perform the puncture action, which provides accurate guidance for medical personnel before the puncture needle punctures, and also improves the reliability and stability of the puncture needle during the puncture process, which is convenient for medical personnel to operate. Among them, when the first clamping end and the second clamping end clamp the puncture needle, the first clamping end and the second clamping end are close to each other, and the identification structure is located at the needle exit end of the clamping structure, that is, when the first clamping end and the second clamping end are clamping the puncture needle, the relative position of the puncture needle and the clamping structure will not change, so as to ensure the position accuracy of the puncture needle during the puncture process, and also facilitate the operation of medical personnel.
[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a structural schematic diagram of a clamping structure provided by an embodiment of the present application;
[0023] Figure 2 yes Figure 1 A schematic diagram of the structure of the clamping assembly at one angle;
[0024] Figure 3 yes Figure 2 A schematic diagram of the structure of the clamping assembly at another angle;
[0025] Figure 4 yes Figure 2 A schematic cross-sectional view of a clamping assembly in FIG.
[0026] Figure 5yes Figure 2 An exploded schematic diagram of the clamping assembly in FIG.
[0027] Figure 6 yes Figure 5 A schematic diagram of the structure of the shell in FIG.
[0028] Figure 7 yes Figure 5 A schematic diagram of the structure of the shell at another angle;
[0029] Figure 8 yes Figure 5 A schematic cross-sectional view of a shell in FIG.
[0030] Fig. 9 yes Figure 5 A schematic diagram of the structure of the push cover;
[0031] Fig.10 yes Figure 5 A schematic diagram of the structure of the push cover at another angle;
[0032] Fig.11 yes Figure 5 Schematic cross-sectional view of the push cover in FIG.
[0033] Description of reference numerals:
[0034] 10. needle channel member; 10a. housing; 10b. cover body; 10c. net tail structure; 11. first clamping end; 111. guide needle slideway; 111a. first groove surface; 111b. second groove surface; 111c. connecting arc surface; 111d. center surface; 12. indentation protrusion; 121. pressing part; 13. mounting groove; 14. first rotating part; 141. first rotating hole; 15. accommodating groove; 16. first limiting groove;
[0035] 20, pressing cover; 20a, pressing portion; 20b, operating portion; 21, second clamping end; 211, abutting boss; 2111, abutting plane; 2112, first wall surface; 2113, second wall surface; 22, second rotating portion; 221, second rotating hole; 23, second limiting groove; 24, anti-slip protrusion;
[0036] 30. Elastic parts;
[0037] 40. Rotating shaft; 41. Mandrel; 42. Fixed member;
[0038] 50. Circuit board; 51. Position sensor; 52. Wireless communication module;
[0039] 60. Connecting joints;
[0040] 70. Cables. DETAILED DESCRIPTION
[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0042] It should also be understood that the terms used in this utility model specification are only for describing specific realities. In the description of this application, 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" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application 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 this application. In addition, the terms "first" and "second" 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" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0043] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0044] like Figures 1 to 11 As shown, the present application provides a clamping structure for assisting puncture surgery, the clamping structure includes a clamping assembly having a first clamping end 11 and a second clamping end 21, which is used to clamp the puncture needle to assist medical personnel in performing the puncture action. The clamping assembly includes a needle channel member 10, an elastic member 30 and a pressing cover 20 that rotates with the needle channel member 10, the needle channel member 10 has the above-mentioned first clamping end 11, the pressing cover 20 has the above-mentioned second clamping end 21, and the two ends of the elastic member 30 are respectively in contact with the needle channel member 10 and the pressing cover 20 to drive the first clamping end 11 to the direction of the second clamping end 21 to always maintain elastic force for clamping the puncture needle, so that the puncture needle can stably perform the puncture action and accurately hit the target puncture point, thereby improving the safety of the operation; at the same time, the first clamping end 11 and the second clamping end 21 are relatively close to each other at the same time under the elastic force of the elastic member 30, so that different types of puncture needles can be fastened and clamped, with a simple structure and convenient operation.
[0045] In this embodiment, if Figure 3 As shown, one of the needle channel member 10 and the pressing cover 20 is provided with an identification structure, which is arranged at the needle outlet end of the clamping structure and is used to mark the puncture position of the puncture needle, so that medical personnel can cooperate with the ultrasonic probe to find the best needle insertion point and mark it with the identification structure before the puncture needle punctures, and then perform the puncture action with the puncture needle firmly clamped on the clamping assembly. There is no need to rely on the experience and ability of the medical personnel, which provides accurate guidance for the medical personnel before the puncture needle punctures, and also improves the reliability and stability of the puncture needle during the puncture process, which is convenient for medical personnel to operate.
[0046] For example, before the medical staff punctures the patient with the puncture needle, the medical staff first uses the clamping structure to cooperate with the ultrasonic probe to find the best puncture point on the patient's skin, and then marks the best puncture point on the patient's skin through the marking structure, and then inserts the puncture needle clamped on the clamping structure into the body from this position to complete the puncture action. Among them, when the first clamping end 11 and the second clamping end 21 clamp the puncture needle, the first clamping end 11 and the second clamping end 21 are close to each other, and the marking structure is located at the needle exit end of the clamping structure, that is, when the first clamping end 11 and the second clamping end 21 clamp the puncture needle, the relative position of the puncture needle and the clamping structure will not change, so as to ensure the position accuracy of the puncture needle during the puncture process, and also facilitate the operation of medical staff. For example, medical personnel with outstanding experience and ability will first find the best puncture point on the patient's skin and mark it, and then it can be handed over to medical assistants with average experience and ability to perform the operation. The entire puncture process does not need to rely too much on the experience and ability of the medical personnel, and can provide accurate guidance for medical personnel before puncture with the puncture needle, and also improve the reliability and stability of the puncture needle during the puncture process.
[0047] It should be noted that the identification structure can be achieved by including but not limited to pressing the clamping structure on the patient's skin so that the identification structure can produce an indentation on the skin; at the same time, the identification structure can also be a traditional ink mark, etc., which is not limited in this application.
[0048] In an optional embodiment, if Figures 2 to 5As shown, the first clamping end 11 includes a guide needle slide 111 arranged on the needle channel member 10 and used to place the puncture needle, and the second clamping end 21 includes an abutment boss 211 arranged on the pressing cover 20 and adapted to the guide needle slide 111, and the abutment boss 211 cooperates with the guide needle slide 111 to limit the puncture needle so that the puncture needle moves along the length direction of the guide needle slide 111, so that the puncture needle can be firmly fixed in the guide needle slide 111. Among them, the puncture needle is placed in the guide needle slide 111, and then the elastic member 30 arranged between the needle channel member 10 and the pressing cover 20 drives the abutment boss 211 on the pressing cover 20 to move toward one side of the guide needle slide 111, so as to clamp the puncture needle placed in the guide needle slide 111 and apply a clamping force. In this way, not only can puncture needles of different types be clamped, but also different types of puncture needles can be prevented from deviating from their positions during the clamping process, thereby ensuring that the position of the central axis of the puncture needle remains unchanged each time the puncture needles of different types are clamped.
[0049] It should be noted that if Figure 3 As shown, the length direction of the needle guide slide 111 is the same as the extension direction of the puncture needle after being placed in the needle guide slide 111 or the opposite direction of the extension direction, wherein the needle head of the puncture needle extends from the needle outlet end and extends along the extension direction of the needle guide slide 111.
[0050] In an optional embodiment, the puncture needle may include but is not limited to a biopsy needle, an ablation needle, an anesthesia needle, etc., which pierce the patient's skin to achieve accurate biopsy, ablation, staining, anesthesia, etc. Among them, the biopsy needle and the ablation needle have different models and their corresponding diameters are also different. The clamping structure of the present application is mainly used to clamp the biopsy needle and the ablation needle with a diameter of 0.81mm to 2.41mm.
[0051] In an optional embodiment, the identification structure includes an indentation protrusion 12 for compressing the skin to produce an indentation, and the extension direction of the indentation protrusion 12 is the same as the direction of the needle tip of the puncture needle. At least part of the guide needle slide 111 is formed on the indentation protrusion 12 or the indentation protrusion 12 is an extension of the abutment boss 211, so that before the puncture needle punctures, the medical staff can press the clamping structure to make the indentation protrusion 12 leave an indentation of the best puncture point on the patient's skin, and then clamp the puncture needle between the guide needle slide 111 and the abutment boss 211, so that the puncture needle can be inserted from the indentation position of the puncture point. Not only is the structure simple, but it can also ensure the relative position of the indentation protrusion 12 and the puncture needle to ensure the puncture accuracy of the puncture needle.
[0052] In an optional embodiment, the indentation protrusion 12 is formed on one side of the needle track member 10 and extends along the length direction of the puncture needle, at least a portion of the needle guide slide 111 is formed on the indentation protrusion 12, and another portion of the indentation protrusion 12 is formed on the needle track member 10 to accommodate most of the length of the puncture needle.
[0053] In an optional embodiment, if Figures 3 to 6 As shown, the size of the indentation protrusion 12 gradually decreases from the connection between the indentation protrusion 12 and the needle channel component 10 toward the side away from the needle channel component 10 to form a pressing portion 121 with an arc surface. This not only ensures the connection strength between the indentation protrusion 12 and the needle channel component 10, but also enables the pressing portion 121 to mark the optimal puncture point with the minimum pressing force, thereby avoiding the indentation protrusion 12 from causing damage to the skin when pressed.
[0054] In an optional embodiment, if Figures 4 to 8 As shown, the guide needle slide 111 has a first groove surface 111a and a second groove surface 111b that are relatively inclined, and the distance between the first groove surface 111a and the second groove surface 111b gradually increases toward the opening direction of the guide needle slide 111 to form a V-shaped structure or a U-shaped structure of the guide needle slide 111, which is convenient for clamping puncture needles of different models and diameters, thereby improving the versatility of the clamping structure.
[0055] After adopting the above technical solution, the guide needle slide 111 is designed into a V-shaped structure or a U-shaped structure, so that the guide needle slide 111 can have a divergent opening, which is not only convenient for clamping puncture needles of different diameters, but also convenient for placing the puncture needle from the opening into the guide needle slide 111, playing a guiding role; at the same time, it also ensures the stability of puncture needles of different diameters placed in the guide needle slide 111. Among them, since the diameter of the puncture needle is very small, when the puncture needle is inserted into the guide needle slide 111 from the opening, the circumferential side of the puncture needle fits with the first groove surface 111a and the second groove surface 111b, and then pressure is applied to the puncture needle from the other side of the puncture needle toward the bottom of the guide needle slide 111 through the abutment boss 211, so that the puncture needle can be firmly clamped in the clamping space formed by the abutment boss 211, the first groove surface 111a and the second groove surface 111b, so that the tiny puncture needle can be clamped, not only the clamping force is strong, but also the tiny puncture needle can be prevented from falling.
[0056] In an optional embodiment, if Figure 4 , Figures 9 to 11As shown, the abutment boss 211 has an abutment plane 2111 for applying a pressing force to the puncture needle. After the puncture needle with a diameter of 0.81 mm to 2.41 mm is placed on the guide needle slideway 111, the abutment plane 2111 abuts against at least one of the puncture needles and is perpendicular to the central plane 111d of the guide needle slideway 111, so that the puncture needle can be firmly clamped between the abutment boss 211 and the guide needle slideway 111. The first groove surface 111a and the second groove surface 111b are symmetrically arranged relative to the central plane 111d of the guide needle slideway 111.
[0057] Exemplarily, when the diameter of the puncture needle is equal to a preset value, the abutment plane 2111 abuts against the outside of the puncture needle under the elastic force of the elastic member 30, and the abutment point between the abutment plane 2111 and the puncture needle is located on the center plane 111d, that is, the abutment plane 2111 is perpendicular to the center plane 111d. At this time, the pressing force applied by the abutment plane 2111 to the puncture needle is a positive pressure exceeding the diameter of the puncture needle. The positive pressure can be decomposed into a first decomposition force toward the first groove surface 111a and a second decomposition force toward the second groove surface 111b. The first decomposition force is equal to the second decomposition force to ensure that the puncture needle can be firmly clamped in the guide needle slide 111. When the diameter of the puncture needle is smaller than the preset value, the holding force applied by the abutment plane 2111 on the puncture needle is offset toward one side of the center plane 111d, and as the diameter of the puncture needle decreases, the offset angle of the holding force increases; when the diameter of the puncture needle is larger than the preset value, the holding force applied by the abutment plane 2111 on the puncture needle is offset toward the other side of the center plane 111d; and as the diameter of the puncture needle increases, the offset angle of the holding force increases. Therefore, the present application sets the diameter of the commonly used puncture needle to a preset value to ensure the clamping force of the clamping structure on the commonly used puncture needle and to ensure the position accuracy of the commonly used puncture needle.
[0058] In an optional embodiment, if Figures 4 to 8 As shown, the first groove surface 111a and the second groove surface 111b are symmetrically arranged relative to the central surface 111d of the guide needle slide 111, and the abutment plane 2111 abuts against the circumferential surface of the puncture needle with a diameter of 1.61 mm and is perpendicular to the central surface 111d, so as to ensure that the pressing force applied by the abutment boss 211 to the puncture needle with a diameter of 1.61 mm is a positive pressure exceeding the diameter of the puncture needle, thereby ensuring the clamping force of the clamping structure on the puncture needle with a diameter of 1.61 mm, that is, the diameter of the puncture needle commonly used in this application is 1.61 mm.
[0059] In an optional embodiment, the shortest distance between the abutment plane 2111 and the bottom of the guide needle slideway 111 is between 0.65 mm and 0.75 mm, so as to ensure that the abutment plane 2111 cooperates with the first groove surface 111a and the second groove surface 111b to clamp a puncture needle with a diameter of 0.81 mm. Preferably, the shortest distance between the abutment plane 2111 and the bottom of the guide needle slideway 111 is 0.69 mm.
[0060] In an optional embodiment, the first groove surface 111a and the second groove surface 111b are symmetrically arranged relative to the central plane 111d of the guide needle slideway 111, and the inclination angle β between the first groove surface 111a and the second groove surface 111b and the central plane 111d is between 31 degrees and 33 degrees, so that the first groove surface 111a and the second groove surface 111b can clamp the puncture needle with a diameter of 0.81mm to 2.41mm, and at the same time, it can also ensure that the puncture needle can be firmly clamped in the clamping space formed by the abutment boss 211, the first groove surface 111a and the second groove surface 111b. Preferably, the inclination angle β is 32 degrees.
[0061] In an optional embodiment, the guide needle slide 111 also includes a connecting arc surface 111c, one end of the connecting arc surface 111c is connected to the first groove surface 111a, and the other end of the connecting arc surface 111c is connected to the second groove surface 111b, so that the first groove surface 111a and the second groove surface 111b can smoothly transition at the bottom of the guide needle slide 111, which can facilitate the molding of the guide needle slide 111 and improve the life of the mold for molding the guide needle slide 111.
[0062] In an optional embodiment, if Figure 4 , Figures 9 to 11 As shown, the abutting boss 211 has a first wall surface 2112 and a second wall surface 2113, which are formed on both sides of the abutting plane 2111, and are used to cooperate with the first groove surface 111a and the second groove surface 111b to prevent the abutting boss 211 from interfering with the needle guide slideway 111 when the pressing cover 20 rotates relative to the needle track member 10, thereby failing to clamp the puncture needle. The abutting boss 211 and the needle guide slideway 111 are clearance-matched.
[0063] In an optional embodiment, if Figures 7 to 9 As shown, the needle track member 10 is provided with a first rotating portion 14 , and the pressing cover 20 is provided with a second rotating portion 22 , so that the pressing cover 20 can be rotatably mounted on the first rotating portion 14 through the second rotating portion 22 .
[0064] For example, Figures 5 and 6As shown, the clamping structure includes a rotating shaft 40, a first rotating part 14 is provided with a first rotating hole 141, and a second rotating part 22 is provided with a second rotating hole 221. The rotating shaft 40 is inserted into the first rotating hole 141 and the second rotating hole 221, so that the pressing cover 20 can rotate around the axis of the rotating shaft 40 relative to the needle track part 10.
[0065] In this embodiment, the pressing cover 20 has a pressing portion 20a and an operating portion 20b, the operating portion 20b and the pressing portion 20a are arranged at a preset angle, the second rotating portion 22 is arranged at the connection between the operating portion 20b and the pressing portion 20a and faces the side connected to the needle track 10, and the abutting boss 211 is arranged on the inner side of the pressing portion 20a. When the clamping structure needs to clamp the puncture needle, pressure is applied to the operating portion 20b so that the pressing portion 20a controls the abutting boss 211 to separate from the guide needle slide 111. At this time, the elastic member 30 is in a compressed state and generates a compressive force. Then, the puncture needle is placed in the guide needle slide 111 and the operating portion 20b is released. The elastic member 30 restores its deformation and pushes the pressing portion 20a to drive the abutting boss 211 to reset, so as to clamp the puncture needle in the guide needle slide 111. The same is true when the puncture needle is taken out of the guide needle slide 111.
[0066] In an optional embodiment, the number of the first rotating parts 14 and the second rotating parts 22 are both two, the two first rotating parts 14 are arranged at intervals along the width direction of the needle track 10, and the two second rotating parts 22 are arranged at intervals along the width direction of the pressing cover 20. After the pressing cover 20 is assembled to the needle track 10, the two second rotating parts 22 are located inside the two first rotating parts 14. The width direction of the needle track 10 and the width direction of the pressing cover 20 are the same as the length direction of the needle guide slide 111.
[0067] In an optional embodiment, the rotating shaft 40 includes a core shaft 41 and a fixing member 42, one end of the core shaft 41 has a fixing end, and the other end passes through one of the first rotating parts 14 and sequentially passes through the two second rotating parts 22 and the other first rotating part 14, and the fixing member 42 is connected to the other end of the core shaft 41 passing through the first rotating part 14, and is used to rotatably install the pressing cover 20 on the needle track member 10. Among them, a receiving groove 15 is formed between the two first rotating parts 14, one side of the receiving groove 15 has a first limiting groove 16, and the pressing cover 20 is provided with a second limiting groove 23, and the elastic member 30 is installed in the receiving groove 15, and the two ends of the elastic member 30 are respectively limited in the first limiting groove 16 and the second limiting groove 23. The elastic member 30 is preferably a torsion spring.
[0068] In an optional embodiment, a plurality of anti-slip protrusions 24 are provided on the operating portion 20b, which can effectively play an anti-slip role, effectively improving the problem of easy slippage between the fingers of medical personnel and the surface of the pressing cover 20, making the pressing cover 20 easy to operate and increasing the operating feel.
[0069] In an optional embodiment, if Figure 4 and Figure 5 As shown, the clamping structure also includes a position sensor 51 for transmitting a position signal. The position sensor 51 is arranged in the needle channel member 10 and is parallel or coplanar with the central plane 111d of the guide needle slideway 111, and is used to assist medical personnel in positioning the puncture needle, and transmit the position of the puncture needle to the ultrasonic device in a wired or wireless communication manner, so that the ultrasonic device can guide the medical personnel to perform precise puncture. Among them, the position sensor 51 is parallel or coplanar with the central plane 111d of the guide needle slideway 111, which can effectively ensure the position relationship between the position sensor 51 and the puncture needle clamped on the guide needle slideway 111.
[0070] In an optional embodiment, the needle channel component 10 includes a shell 10a and a cover body 10b, and a mounting groove 13 is formed in the shell 10a. The position sensor 51 is fixed in the mounting groove 13, and the cover body 10b covers the open part of the mounting groove 13, which can not only fix the position sensor in the mounting groove 13, but also achieve the overall waterproof effect of the needle channel component 10, thereby preventing external liquid from entering the mounting groove 13, thereby causing the position sensor 51 to fail or malfunction.
[0071] In an optional embodiment, if Figure 1 , Figure 4 and Figure 5 As shown, the clamping structure further includes a connection connector 60 for connecting to a receiving device, and the position sensor 51 in the needle channel member 10 transmits data with the ultrasonic device via a cable 70 .
[0072] In an optional embodiment, the needle track component 10 also includes a mesh tail structure 10c, which is wrapped around the outside of the cable 70. When the connection between the cable 70 and the needle track component 10 is bent by external force, the mesh tail structure 10c can play a buffering role, making the stress distribution more uniform, and preventing bending fatigue concentration, thereby better protecting the wire core in the connecting cable 70.
[0073] In an optional embodiment, the clamping structure further includes a wireless communication module 52 for wireless data transmission with a receiving device. The wireless communication module 52 is disposed in the needle track member 10, so that the clamping structure can establish a wireless communication connection with the receiving device for wireless data transmission.
[0074] In an optional embodiment, the clamping structure includes a circuit board 50 , a wireless communication module 52 and a position sensor 51 are integrated on the circuit board 50 , and the circuit board 50 is fixed in the mounting groove 13 .
[0075] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0076] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0077] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
Claims
1. A clamping structure for assisting puncture surgery, characterized in that: The clamping structure includes a needle channel member, an elastic member and a pressing cover rotatably matched with the needle channel member, the needle channel member has a first clamping end, the pressing cover has a second clamping end, and the two ends of the elastic member are respectively in contact with the needle channel member and the pressing cover to drive the first clamping end toward the second clamping end to always maintain an elastic force for clamping the puncture needle; Wherein, one of the needle channel member and the pressing cover is provided with an identification structure, and the identification structure is arranged at the needle outlet end of the clamping structure and is used to mark the puncture position of the puncture needle.
2. The clamping structure according to claim 1, characterized in that: The first clamping end includes a guide needle slide arranged on the needle track member and used to place the puncture needle, and the second clamping end includes an abutment boss arranged on the pressing cover and adapted to the guide needle slide, and the abutment boss cooperates with the guide needle slide to limit the puncture needle so that the puncture needle moves along the length direction of the guide needle slide.
3. The clamping structure according to claim 2, characterized in that: The identification structure includes an indentation protrusion for compressing the skin to produce an indentation, the extension direction of the indentation protrusion is the same as the direction of the needle head of the puncture needle, at least part of the guide needle slide is formed on the indentation protrusion or the indentation protrusion is an extension of the abutment boss.
4. The clamping structure according to claim 3, characterized in that: The size of the indentation protrusion gradually decreases from the connection point between the indentation protrusion and the needle channel member toward the side away from the needle channel member to form a pressing portion with a curved surface.
5. The clamping structure according to claim 2, characterized in that: The needle guide slide has a first groove surface and a second groove surface that are relatively inclined, and the distance between the first groove surface and the second groove surface gradually increases toward the opening direction of the needle guide slide.
6. The clamping structure according to claim 5, characterized in that: The abutment boss has an abutment plane for applying a pressing force to the puncture needle. After the puncture needle with a diameter of 0.81 mm to 2.41 mm is placed on the guide needle slide, the abutment plane abuts against at least one of the puncture needles and is perpendicular to the center plane of the guide needle slide.
7. The clamping structure according to claim 6, characterized in that: The first groove surface and the second groove surface are symmetrically arranged relative to the central plane of the guide needle slideway, and the abutment plane abuts against the peripheral surface of the puncture needle with a diameter of 1.61 mm and is perpendicular to the central plane.
8. The clamping structure according to claim 6, characterized in that: The shortest distance between the abutment plane and the bottom of the guide needle slideway is between 0.65 mm and 0.75 mm.
9. The clamping structure according to claim 5, characterized in that: The first groove surface and the second groove surface are symmetrically arranged relative to the center plane of the guide needle slideway, and the inclination angles of the first groove surface and the second groove surface to the center plane are between 31 degrees and 33 degrees.
10. The clamping structure according to claim 5, characterized in that: The guide needle slide also includes a connecting arc surface, one end of which is connected to the first groove surface, and the other end of which is connected to the second groove surface.
11. The clamping structure according to claim 2, characterized in that: The clamping structure further comprises a position sensor for transmitting a position signal, wherein the position sensor is arranged in the needle track component and is parallel to or coplanar with the center plane of the needle guide slideway.
12. The clamping structure according to claim 11, characterized in that: The needle channel component comprises a shell and a cover body. A mounting groove is formed in the shell. The position sensor is fixed in the mounting groove. The cover body covers the open portion of the mounting groove.
13. The clamping structure according to claim 1, characterized in that: The clamping structure also includes a connection joint for connecting to a receiving device, and the position sensor in the needle channel member transmits data to the connection joint via a cable; or, The clamping structure further comprises a wireless communication module for wireless data transmission with a receiving device, and the wireless communication module is arranged in the needle track member.