Puncture device with introducer

Abstract

The utility model provides a puncture device with a guider, which relates to the technical field of medical related equipment, and comprises a guide structure and a puncture needle component, and the guide structure is in limited sliding connection with the puncture needle component; the guide structure is used for positioning the puncture needle assembly at the focus by moving and adjusting the angle; the puncture needle assembly is provided with a positioning part, and the positioning part is used for positioning the length of the puncture needle assembly penetrating into the body of the patient. The technical problems that in the prior art, due to the fact that the puncture position, the puncture direction and the puncture depth cannot be located at the same time, operation complexity is high, and the success rate of percutaneous puncture treatment and diagnosis is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical related equipment, in particular to a puncture device with a guide. Background Art

[0002] In medical practice, percutaneous puncture is a common treatment and diagnosis method. However, due to the complexity of human anatomy and the differences in operator skills, the puncture position often deviates from the target or the puncture depth is inaccurate, which may lead to operational risks and patient discomfort. Therefore, it is necessary to develop a puncture device with a guide that can provide accurate position and depth guidance, thereby improving the accuracy and safety of the puncture operation.

[0003] At present, the puncture devices with guides mainly include 3D printed positioning guides and puncture sleeves, etc. Among them, the 3D printed positioning guide can only locate the puncture position, but not the puncture direction and depth (there is direction but no depth, and it can only locate rigid objects); while the puncture sleeve will block part of the needle, and the puncture sleeve cannot be stably fixed on the patient's body surface, which is easy to cause the puncture position to deviate.

[0004] The puncture guides currently on the market do not have the function of simultaneously locating the puncture position, puncture direction and puncture depth. At the same time, the operation is relatively complicated. Doctors need to find the corresponding needle insertion direction and depth through anatomical experience or bony position, which results in a low success rate for percutaneous puncture treatment and diagnosis, causing pain to patients during the diagnosis and treatment process. Utility Model Content

[0005] The purpose of the utility model is to provide a puncture device with a guide to alleviate the technical problems existing in the prior art, such as the inability to simultaneously locate the puncture position, puncture direction and puncture depth, resulting in high operational complexity and low success rate of percutaneous puncture treatment and diagnosis.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a puncture device with a guide, comprising a guide structure and a puncture needle assembly, wherein the guide structure is slidably connected to the puncture needle assembly;

[0008] The guide structure is used to position the puncture needle assembly at the lesion by moving and adjusting the angle;

[0009] The puncture needle assembly is provided with a positioning portion, and the positioning portion is used to position the length of the puncture needle assembly inserted into the patient's body.

[0010] Furthermore, the guiding structure includes a supporting frame and a limiting assembly, the supporting frame is connected to the limiting assembly, and the supporting frame is used to drive the limiting assembly to move and adjust the angle;

[0011] The limiting assembly is connected to the puncture needle assembly in a limiting sliding manner.

[0012] Furthermore, the support frame is provided with a through slot for accommodating the limiting assembly, and the through slot is located at the center of the support frame.

[0013] Furthermore, the support frame is configured as an equilateral triangle structure;

[0014] The through groove is configured as an equilateral triangle through groove, and the three corners of the equilateral triangle through groove are respectively distributed correspondingly to the three corners of the equilateral triangle structure.

[0015] Furthermore, the limiting assembly includes a connecting member and a positioning member, one end of the connecting member is connected to the supporting frame, and the other end is connected to the positioning member;

[0016] The positioning member is provided with a positioning hole, and the positioning member is limitedly slidably connected with the puncture needle assembly through the positioning hole.

[0017] Furthermore, three connecting members are provided, and one end of each of the three connecting members is connected to the positioning member, and the interval angles between adjacent connecting members are the same.

[0018] Furthermore, the puncture needle assembly includes a puncture needle body, the puncture needle body is slidably connected to the guide structure, and the puncture needle body is provided with the positioning portion, and the puncture needle body is used to puncture the patient's body.

[0019] Further, the positioning portion is configured as a positioning ring, the positioning ring is connected to the puncture needle body, and the positioning ring is used to position the puncture needle body along the extension direction of the puncture needle body;

[0020] The positioning ring is used to abut against the guiding structure when the puncture needle body penetrates into the patient's body.

[0021] Furthermore, the puncture needle assembly also includes a holding piece, and the holding piece is connected to the puncture needle body.

[0022] Furthermore, the puncture device with the guide also includes a handle, and the handle is connected to the guide structure.

[0023] The utility model can achieve the following beneficial effects:

[0024] In the first aspect, the utility model provides a puncture device with a guide, including a guide structure and a puncture needle assembly, wherein the guide structure is slidably connected to the puncture needle assembly; the guide structure is used to position the puncture needle assembly at the lesion by moving and adjusting the angle; the puncture needle assembly is provided with a positioning portion, which is used to locate the length of the puncture needle assembly inserted into the patient's body.

[0025] In the utility model, the guide structure is connected to the puncture needle assembly in a limited sliding manner, and before use, the user can adjust the insertion position and insertion angle of the puncture needle assembly by changing the position and inclination angle of the guide structure, and the puncture needle assembly is provided with a positioning portion, which is used to limit the length of the puncture needle assembly inserted into the lesion.

[0026] Compared with the prior art, the utility model provides a puncture device with a guide, which limits the insertion position and angle of the puncture needle assembly by using a guiding structure to avoid the common problems of inaccurate insertion angle and position during manual puncture; and the positioning part of the puncture needle assembly can limit the insertion length of the puncture needle assembly.

[0027] In summary, the utility model at least alleviates the technical problems existing in the prior art, such as the inability to simultaneously locate the puncture position, puncture direction and puncture depth, resulting in high operational complexity and low success rate of percutaneous puncture treatment and diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the three-dimensional structure of a puncture device with a guide provided in an embodiment of the utility model.

[0030] Icons: 1-guiding structure; 11-supporting frame; 12-limiting assembly; 121-connecting piece; 122-positioning piece; 1221-positioning hole; 2-puncture needle assembly; 21-puncture needle body; 22-positioning ring; 23-gripping piece; 3-handle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] Embodiment 1

[0039] This embodiment provides a puncture device with a guide, referring to Figure 1 The puncture device with a guide includes a guide structure 1 and a puncture needle assembly 2, and the guide structure 1 is connected to the puncture needle assembly 2 in a limited sliding manner; the guide structure 1 is used to position the puncture needle assembly 2 at the lesion by moving and adjusting the angle; the puncture needle assembly 2 is provided with a positioning part, and the positioning part is used to locate the length of the puncture needle assembly 2 inserted into the patient's body.

[0040] The embodiments of the utility model at least alleviate the technical problems existing in the prior art, which are the inability to simultaneously locate the puncture position, puncture direction and puncture depth, resulting in high operation complexity and low success rate of percutaneous puncture treatment and diagnosis.

[0041] In the embodiment of the utility model, the guide structure 1 is connected to the puncture needle assembly 2 in a limited sliding manner, and before use, the user can adjust the insertion position and insertion angle of the puncture needle assembly 2 by changing the position and inclination angle of the guide structure 1, and a positioning portion is provided on the puncture needle assembly 2, which is used to limit the length of the puncture needle assembly 2 inserted into the lesion.

[0042] Compared with the prior art, the puncture device with a guide provided in the embodiment of the utility model limits the insertion position and angle of the puncture needle assembly 2 by using the guide structure 1, so as to avoid the common problems of inaccurate insertion angle and position during manual puncture; and the positioning portion of the puncture needle assembly 2 can limit the insertion length of the puncture needle assembly 2.

[0043] In an optional implementation manner of this embodiment, refer to Figure 1 The guiding structure 1 includes a supporting frame 11 and a limiting assembly 12. The supporting frame 11 is connected to the limiting assembly 12, and the supporting frame 11 is used to drive the limiting assembly 12 to move and adjust the angle; the limiting assembly 12 is connected to the puncture needle assembly 2 in a limiting sliding manner.

[0044] Specifically: the support frame 11 is connected to the limiting assembly 12, and the limiting assembly 12 is used to limit the puncture needle assembly 2, so that the puncture needle assembly 2 can be inserted into the affected area under the limitation of the limiting assembly 12 without being misaligned.

[0045] Further, refer to Figure 1 The support frame 11 is provided with a through slot for accommodating the limiting component 12 , and the through slot is located at the center of the support frame 11 .

[0046] Specifically, a through slot is provided at the center of the support frame 11 , and a limiting component 12 is provided in the through slot, that is, the limiting component 12 is located at the center of the support frame 11 .

[0047] Further, refer to Figure 1 The support frame 11 is set to an equilateral triangle structure; the through groove is set to an equilateral triangle through groove, and the three corners of the equilateral triangle through groove are respectively distributed corresponding to the three corners of the equilateral triangle structure.

[0048] Specifically: the support frame 11 is preferably an equilateral triangle structure with good stability; the through groove is set as an equilateral triangle through groove, and the equilateral triangle through groove matches the equilateral triangle structure, and the three groove sides of the equilateral triangle through groove are all connected to the limiting component 12.

[0049] In an optional implementation manner of this embodiment, refer to Figure 1 The limiting assembly 12 includes a connecting member 121 and a positioning member 122. One end of the connecting member 121 is connected to the supporting frame 11, and the other end is connected to the positioning member 122. The positioning member 122 is provided with a positioning hole 1221, and the positioning member 122 is slidingly connected to the puncture needle assembly 2 through the positioning hole 1221.

[0050] Specifically: the connecting member 121 is placed in the equilateral triangle groove, and one end of the connecting member 121 is connected to the supporting frame 11, and the other end is connected to the positioning member 122, and the positioning member 122 is located at the center of the equilateral triangle groove; and the positioning member 122 is provided with a positioning hole 1221, and the puncture needle assembly 2 passes through the positioning hole 1221, and the positioning hole 1221 is used to limit the puncture needle assembly 2.

[0051] Further, refer to Figure 1 There are three connecting members 121 , and one end of each of the three connecting members 121 is connected to the positioning member 122 , and the interval angles between adjacent connecting members 121 are the same.

[0052] Specifically, three connecting members 121 are provided, and the three connecting members 121 are respectively connected to the three groove sides of the equilateral triangle through groove, and the free ends of the three connecting members 121 are all connected to the positioning member 122, and the angle between adjacent connecting members 121 is 120°.

[0053] In an optional implementation manner of this embodiment, refer to Figure 1 The puncture needle assembly 2 includes a puncture needle body 21, which is slidably connected to the guide structure 1 and is provided with a positioning portion. The puncture needle body 21 is used to puncture the patient's body.

[0054] Specifically: the sharp end of the puncture needle body 21 passes through the positioning hole 1221 of the guide structure 1, and a positioning portion is provided at one end of the puncture needle body 21 away from the sharp end, and the positioning portion abuts against the guide structure 1 to limit the insertion length of the puncture needle body 21.

[0055] Further, refer to Figure 1 The positioning portion is set as a positioning ring 22, the positioning ring 22 is connected to the puncture needle body 21, and the positioning ring 22 is used to position on the puncture needle body 21 along the extension direction of the puncture needle body 21; the positioning ring 22 is used to abut against the guide structure 1 when the puncture needle body 21 is inserted into the patient's body.

[0056] Specifically: the positioning ring 22 is used to position on the puncture needle body 21 along the extension direction of the puncture needle body 21; preferably, the positioning ring 22 can be moved along the extension direction of the puncture needle body 21 and fixed at a corresponding position, and its fixing method can be bonding, etc.; and the positioning ring 22 is used to abut against the positioning piece 122 to limit the insertion length of the puncture needle body 21.

[0057] Preferably, the positioning ring 22 can be painted in a prominent color such as red.

[0058] In an optional implementation manner of this embodiment, refer to Figure 1 The puncture needle assembly 2 also includes a holding piece 23, and the holding piece 23 is connected to the puncture needle body 21.

[0059] Specifically: the holding piece 23 is connected to the puncture needle body 21, and preferably, the holding piece 23 is located at an end of the puncture needle body 21 away from the sharp end, and the holding piece 23 can be in a rectangular or spherical shape.

[0060] In an optional implementation manner of this embodiment, refer to Figure 1 The puncture device with the guide further includes a handle 3 , which is connected to the guide structure 1 .

[0061] Specifically: the handle 3 is connected to the guide structure 1; and preferably, the handle 3 is connected to the center of one side of the equilateral triangle-shaped support frame 11; when in use, the user moves the support frame 11 and adjusts the tilt angle by holding the handle 3.

[0062] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other; the above embodiments in this specification are only used to illustrate the technical solution of the utility model, rather than to limit it; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that: it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A puncture device with an introducer, characterized in that: It comprises a guide structure (1) and a puncture needle assembly (2), wherein the guide structure (1) is connected to the puncture needle assembly (2) in a position-limiting sliding manner; The guide structure (1) is used to position the puncture needle assembly (2) at the lesion by moving and adjusting the angle; The puncture needle assembly (2) is provided with a positioning portion, and the positioning portion is used to position the length of the puncture needle assembly (2) inserted into the patient's body; The guide structure (1) comprises a support frame (11) and a position limiting component (12); the support frame (11) is connected to the position limiting component (12), and the support frame (11) is used to drive the position limiting component (12) to move and adjust the angle; The limiting assembly (12) is connected to the puncture needle assembly (2) in a limiting sliding manner.

2. The puncture device with an introducer according to claim 1, characterized in that: The support frame (11) is provided with a through slot for accommodating the limiting component (12), and the through slot is located at the center of the support frame (11).

3. The puncture device with an introducer according to claim 2, characterized in that: The support frame (11) is configured as an equilateral triangle structure; The through groove is configured as an equilateral triangle through groove, and the three corners of the equilateral triangle through groove are respectively distributed correspondingly to the three corners of the equilateral triangle structure.

4. The puncture device with an introducer according to claim 2, characterized in that: The limiting assembly (12) comprises a connecting member (121) and a positioning member (122); one end of the connecting member (121) is connected to the supporting frame (11), and the other end is connected to the positioning member (122); The positioning member (122) is provided with a positioning hole (1221), and the positioning member (122) is connected to the puncture needle assembly (2) in a limited sliding manner through the positioning hole (1221).

5. The puncture device with an introducer according to claim 4, characterized in that: Three connecting members (121) are provided, and one end of each of the three connecting members (121) is connected to the positioning member (122), and the interval angles between adjacent connecting members (121) are the same.

6. The puncture device with an introducer according to claim 1, characterized in that: The puncture needle assembly (2) comprises a puncture needle body (21), the puncture needle body (21) is slidably connected to the guide structure (1), and the puncture needle body (21) is provided with the positioning portion. The puncture needle body (21) is used to puncture into a patient's body.

7. The puncture device with an introducer according to claim 6, characterized in that: The positioning portion is configured as a positioning ring (22), the positioning ring (22) is connected to the puncture needle body (21), and the positioning ring (22) is used to position the puncture needle body (21) along the extension direction of the puncture needle body (21); The positioning ring (22) is used to abut against the guide structure (1) when the puncture needle body (21) pierces the patient's body.

8. The puncture device with an introducer according to claim 7, characterized in that: The puncture needle assembly (2) further comprises a holding piece (23), wherein the holding piece (23) is connected to the puncture needle body (21).

9. The puncture device with an introducer according to any one of claims 1 to 8, characterized in that: It also comprises a handle (3), wherein the handle (3) is connected to the guide structure (1).

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