An ultrasonic puncture device

Abstract

The present application belongs to the field of puncture equipment, and discloses an ultrasonic puncture equipment for puncturing the abdominal cavity of a patient under the assistance of ultrasonic detection, comprising an ultrasonic probe and a guide frame sleeved outside the ultrasonic probe, wherein the guide frame is provided with an adjusting seat rotatably connected with the guide frame, the adjusting seat is provided with a locking mechanism, and the relative deflection angle between the adjusting seat and the guide frame is limited by the locking mechanism after adjustment; the adjusting seat is provided with a mounting groove, a guide head is arranged in the mounting groove, and the guide head is provided with guide holes with different diameters; the adjusting seat is provided with a limiting structure, and the guide head is detachably connected with the limiting structure.

Description

Technical Field

[0001] This invention belongs to the field of puncture equipment technology, and specifically relates to an ultrasonic puncture device. Background Technology

[0002] A biopsy, a common medical surgical term, is a diagnostic and treatment technique that involves inserting a needle into a body cavity to extract secretions for testing, injecting gas or contrast agents into the cavity for imaging examinations, or injecting drugs into the cavity. The purposes of a biopsy include blood sampling, blood transfusions, intravenous infusions, and catheter placement for angiography. Ultrasound-guided biopsy, on the other hand, refers to the use of ultrasound to guide the puncture of certain organs for diagnostic and therapeutic purposes. For example, ultrasound-guided biopsy of thyroid and breast masses is used to remove tissue from the mass for pathological examination, thereby determining the nature of the mass.

[0003] Some ultrasound-guided punctures are for further treatment, such as ultrasound-guided venous puncture, i.e., PICC line placement, in preparation for chemotherapy of tumors. Other examples include puncture of the femoral vein or artery to insert guidewires and tubes for the closure of congenital heart disease. Furthermore, ultrasound is extremely sensitive in diagnosing cystic lesions of the liver and kidneys and easily differentiates them from solid masses. Using ultrasound-guided cyst aspiration for biochemical, bacteriological, and cytological examinations can clarify the nature of various cystic lesions. Moreover, percutaneous drainage of cysts with appropriate indications, followed by sclerotherapy with sclerosing agents (anhydrous ethanol, polidocanol, etc.), has become the preferred clinical treatment for abdominal cysts.

[0004] In ultrasound-guided puncture detection, sampling, or treatment, a fixation structure is required on the existing conventional ultrasound probe to guide the puncture needle. The insertion area of ​​the puncture needle is within the detection area of ​​the ultrasound probe. At this point, the physician can determine the insertion direction of the puncture needle based on the image fed back by the ultrasound probe, thus accurately guiding the puncture needle into the target area. However, the existing fixation structure requires fixing the angle and structure before puncture, and the puncture needle must be handled accordingly after insertion and removed before proceeding to the next area or the next needle. This is sufficient for ordinary single-needle puncture procedures. If at least two punctures are required in the same area, it is impossible to perform the next puncture without removing the previous puncture needle. This is especially problematic in applications such as particle implantation or cyst treatment, where multiple punctures are needed in the same area. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides an ultrasonic puncture device, which uses a detachable guide head and an adjustment seat to guide and separate the inserted puncture needle, thereby meeting the needs of various puncture operations assisted by ultrasonic detection.

[0006] The technical solution adopted in this invention is as follows:

[0007] In a first aspect, the present invention provides an ultrasonic puncture device for performing puncture on the abdominal cavity of a patient under the assistance of ultrasound detection, including an ultrasonic probe and a guide frame sleeved outside the ultrasonic probe. The guide frame is provided with an adjustment seat rotatably connected to the guide frame, and the adjustment seat has a locking mechanism. After adjusting the relative deflection angle between the adjustment seat and the guide frame, the locking mechanism limits the position.

[0008] The adjusting seat has a mounting groove, and a guide head is provided in the mounting groove. The guide head is provided with guide holes of different diameters.

[0009] The adjustment seat is equipped with a limiting structure, which is detachably connected to the guide head.

[0010] In conjunction with the first aspect, the present invention provides a first embodiment of the first aspect, wherein the length direction of the mounting groove is consistent with the guide hole of the mounted guide head.

[0011] In conjunction with the first aspect, the present invention provides a second embodiment of the first aspect, wherein the guide frame includes a fixed rotating shaft, and the adjusting seat is rotatably connected to the guide frame via the rotating shaft;

[0012] The guide frame is also equipped with a slide rail, and the adjustment seat has a protrusion that is inserted into the slide rail and slides within it. The slide rail is an arc with the axis of rotation as its center.

[0013] In conjunction with the second embodiment of the first aspect, the present invention provides a third embodiment of the first aspect, wherein the end of the protrusion on either side has a thread, and a positioning nut is engaged by the thread;

[0014] The positioning nut is located outside the guide frame, and the adjusting seat is fixed / released relative to the guide frame by screwing on the positioning nut.

[0015] In conjunction with the third embodiment of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the slide rail end face on the outer side of the guide frame is provided with concave and convex textures.

[0016] In conjunction with the third embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the limiting structure includes a dovetail groove disposed in the mounting groove, and the guide head has a protrusion that cooperates with the dovetail groove;

[0017] It also includes a plug rod set in the dovetail groove. When the guide head is slidably connected to the adjustment seat through the dovetail groove and the protrusion, the plug rod is inserted into the guide head to achieve a snap-fit.

[0018] The insertion rod is a movable component set in the mounting groove, and it has an operating end outside the adjustment seat. The connection between the rod and the guide head can be adjusted through the operating end.

[0019] In conjunction with the third embodiment of the first aspect, the present invention provides a sixth embodiment of the first aspect, wherein the mounting groove is a semi-open groove structure with three open end faces, and the limiting structure is a retaining strip disposed on the mounting groove;

[0020] The guide head is a strip-shaped structure that fits into the mounting groove. It has a through groove along its length, a U-shaped cross-section, an end face that fits into the bottom of the mounting groove, and two ends that extend into the mounting groove.

[0021] The guide hole is located at the bottom of the through groove, and the part of the through groove extending to both ends is provided with a limiting strip to reduce the gap between the through grooves;

[0022] The outer walls at both ends of the through groove are provided with slots that mate with the locking strip;

[0023] When the guide head is not subjected to external force, the width of its two ends is greater than the width of the mounting groove. When the guide head is inserted into the mounting groove, the two ends are subjected to force and elastically deform inward, causing the clip to be stuck in the groove and thus fixed.

[0024] In conjunction with the sixth embodiment of the first aspect, the present invention provides a seventh embodiment of the first aspect, wherein when the guide head is inserted into the mounting groove, the two ends of the guide head through the groove extend outward from the mounting groove and are provided with clamps at their ends for easy pressing.

[0025] In conjunction with the first aspect or several embodiments of the first aspect, the present invention provides an eighth embodiment of the first aspect, wherein the ultrasound probe is a probe structure for abdominal cavity examination, and further includes a sub-plate and a connecting rod, wherein the ultrasound probe is enclosed and fixed by the sub-plate, the connecting rod and the guide frame.

[0026] In conjunction with the first aspect or several embodiments of the first aspect, the present invention provides a ninth embodiment of the first aspect, wherein the ultrasound probe is a probe structure for abdominal cavity examination, and two guide frames are symmetrically arranged on both sides of the ultrasound probe. The guide frames are connected and fixed between the guide frames by a connecting rod, and the connecting rod pulls the two guide frames together to clamp the ultrasound probe.

[0027] The beneficial effects of this invention are as follows:

[0028] (1) The present invention, through the detachable guide head and adjustment seat structure, can insert the puncture needle into the corresponding tissue at a fixed angle during the puncture process, and can remove the guide head after the puncture is completed to perform the next puncture operation. It is suitable for multiple punctures of the same area in the same operation, thus improving efficiency.

[0029] (2) The present invention, through the structure of the replaceable guide head, can meet the puncture process of various different types of puncture needles. Compared with the existing metal or fixed guide frame structure, it has a better limiting effect. At the same time, the disposable guide head structure realizes the need for guide frame replacement and meets the surgical requirements.

[0030] (3) This invention optimizes the structure of the guide head so that it has a certain deformation capability through its own structural features without setting other mechanical structures. It can be stuck in the mounting groove of the adjustment seat through elastic deformation. After complete guidance, it can be quickly separated from the mounting groove by pinching the two clamps on both sides with fingers, thereby reducing manufacturing and use costs and further improving efficiency. Attached Figure Description

[0031] Figure 1 This is a front view of the embodiment of the present invention that uses a single-sided guide frame and a first type of guide head;

[0032] Figure 2 This is an isometric view of the embodiment of the invention that uses a single-sided guide frame and a first type of guide head;

[0033] Figure 3 This is a front view of the puncture needle after it is offset in the embodiment of the present invention, which uses a single-sided guide frame and a first type of guide head;

[0034] Figure 4 This is an isometric view of the puncture needle after it is offset in the embodiment of the present invention using a single-sided guide frame and a first type of guide head;

[0035] Figure 5 This is an isometric view of the scheme using a single-sided guide frame and a second type of guide head in an embodiment of the present invention;

[0036] Figure 6 This is the present invention. Figure 5 A magnified view of part A in the diagram;

[0037] Figure 7 This is a disassembled isometric view of the guide frame and the guide head in the second type of guide head scheme in the embodiment of the present invention;

[0038] Figure 8 This is a plan view showing the disassembled guide head and adjustment seat in the second guide head scheme of this embodiment of the invention;

[0039] Figure 9 This is a plan view of the double-sided guide frame scheme in an embodiment of the present invention.

[0040] In the diagram: 1-ultrasound probe, 2-guide frame, 3-sub-plate, 4-connecting rod, 5-puncture needle, 6-probe end face, 7-adjusting seat, 7.1-clamping strip, 8-guide head, 8.1-guide hole, 8.2-slot, 8.3-clamp handle, 8.4-limiting strip, 9-rotating shaft, 10-slide rail, 11-positioning nut. Detailed Implementation

[0041] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0047] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] Example 1:

[0049] This embodiment discloses an ultrasonic puncture device, including an ultrasonic probe 1 and a guide frame 2 sleeved on the outside of the ultrasonic probe 1. The guide frame 2 is provided with an adjustment seat 7 rotatably connected to the guide frame 2. The adjustment seat 7 has a locking mechanism, and the relative deflection angle between the adjustment seat 7 and the guide frame 2 is adjusted and then limited by the locking mechanism. The adjustment seat 7 has a mounting groove, and a guide head 8 is provided in the mounting groove. The guide head 8 is provided with guide holes 8.1 of different diameters. The adjustment seat 7 is provided with a limiting structure, which is detachably connected to the guide head 8.

[0050] The length direction of the mounting groove is consistent with the guide hole 8.1 of the installed guide head 8, and the direction of the guide hole 8.1 is the length direction of the guide head 8. When the guide head 8 is placed in the mounting groove, rotating the adjusting seat 7 can make the guide hole 8.1 rotate around a certain point.

[0051] The guide frame 2 includes a fixed rotating shaft 9, and the adjusting seat 7 is rotatably connected to the guide frame 2 via the rotating shaft 9. The guide frame 2 also has a slide rail 10, and the adjusting seat 7 has a protrusion that slides within the slide rail 10. The slide rail 10 is an arc centered on the rotating shaft 9. Rotating the adjusting seat 7 causes it to rotate around the rotating shaft 9, with the rotating interface parallel to the centerline of the ultrasound probe 1, thus ensuring that the puncture needle 5 is within the optimal detection area.

[0052] Furthermore, the fixing method of the adjusting seat 7 is defined such that the end of the protrusion on either side has a thread, and a positioning nut 11 is threadedly engaged; the positioning nut 11 is located outside the guide frame 2 and the adjusting seat 7 is fixed / released relative to the guide frame 2 by screwing on the positioning nut 11.

[0053] In other words, the groove is a structure that limits the rotation range of the adjusting seat 7, while the adjusting seat 7 can be freely adjusted in the extension direction of the groove. However, during puncture, it is necessary to ensure that the puncture needle 5 can be inserted at a fixed angle. Therefore, the adjusting seat 7 can only be adjusted in angle before the operation, and locked by a specific structure after being adjusted to a certain angle.

[0054] There are several locking methods, one of which is the locking method described above, which involves tightening the positioning nut 11 provided on the outer end face of the slide rail 10. Since the guide frame 2 has an installation gap, the adjusting seat 7 is set within this installation gap, and the width of the guide frame 2 is consistent with the installation gap distance. This results in the guide frame 2 being squeezed by the tightening of the positioning nut 11 when the adjusting seat 7 is tightened. At the same time, the positioning nut 11 is pressed tightly against the surface of the slide rail 10 of the guide frame 2. Thus, the large static friction force formed by the compression on both sides is used to position the adjusting seat 7.

[0055] Meanwhile, to improve static friction, the slide rail 10 on the outer side of the guide frame 2 is provided with raised and recessed textures, and the inner side of the positioning nut 11 is also provided with raised and recessed textures or other anti-slip fillers, such as rubber rings. Tightening the positioning nut 11 makes it move relative to the protrusion, and when it moves inward, it is squeezed by the raised and recessed textures to form greater static friction.

[0056] Furthermore, this embodiment optimizes and limits the connection method between the detachable guide head 8 and the adjustment seat 7. As a first method, it is as follows: Figures 1-4 As shown. The limiting structure includes a dovetail groove disposed in the mounting groove, and the guide head 8 has a protrusion that mates with the dovetail groove; it also includes a plug rod disposed in the dovetail groove. When the guide head 8 is slidably connected to the adjusting seat 7 through the protrusion and the dovetail groove, the plug rod is inserted into the guide head 8 to achieve a locking connection; the plug rod is a movable part disposed in the mounting groove, and it has an operating end outside the adjusting seat 7, through which its connection relationship with the guide head 8 is adjusted.

[0057] This fixed and detachable method involves pulling the insertion rod outward when disassembly is required, thereby forming a sliding connection between the guide head 8 and the mounting groove. At this time, the entire guide frame 2 is moved outward, and the guide head 8 can be fixed by the inserted puncture needle 5. Then, another guide head 8 is placed on the adjustment seat 7 for the next guidance.

[0058] In this method, the guide head 8 is made of medical-grade polymer material and is used as a disposable consumable.

[0059] In another implementation, such as Figures 5-8 The image shows the second type of guide head 8 in this embodiment. This guide head 8 is also made of medical-grade polymer material, but it differs from the structure of the first guide head 8. The effect of guiding the puncture needle 5 and detachably connecting it to the mounting groove is achieved only by optimizing the structure of the guide head 8.

[0060] Specifically, the mounting groove is a semi-open groove structure with three open end faces, and the limiting structure is a retaining strip 7.1 set on the mounting groove; the guide head 8 is a strip-shaped structure that fits into the mounting groove, with a through groove in its length direction, a U-shaped cross-section, an end face that fits into the bottom of the mounting groove, and two ends that open to one side of the mounting groove; the guide hole 8.1 is located at the bottom of the through groove, and the part of the through groove extending to the two ends is provided with a limiting strip 8.4 to reduce the gap of the through groove; the two ends are provided with retaining grooves 8.2 that cooperate with the retaining strip 7.1 on the outer wall of the through groove; when the guide head 8 is not subjected to external force, the width of its two ends is greater than the width of the mounting groove. When the guide head 8 is inserted into the mounting groove, the two ends are subjected to force and elastically deform inward to shrink, so that the retaining strip 7.1 is locked in the retaining groove 8.2 to achieve fixation.

[0061] exist Figure 8 As can be seen, the guide head 8 itself has a U-shaped structure, with two ends that extend downwards. The upper guide hole 8.1 is a three-quarters circular hole structure, but it has a notch to allow the two ends to be squeezed and deformed inwards.

[0062] The adjusting seat 7 is made of metal or other hard material and can be considered a structure that cannot deform. The width of the mounting groove of the adjusting seat 7 is smaller than the outer width of the guide head 8, causing the guide head 8 to be pressed inward when installed in the mounting groove. Because it has a notch and the guide hole 8.1 is located near the top, the cross-sectional radius of the guide hole 8.1 itself will not change when it is pressed inward by bending deformation, and will not affect the puncture needle 5.

[0063] Meanwhile, once the puncture needle 5 has reached the target area under the guidance of the ultrasound probe 1, the operator only needs to pinch the two clamp handles 8.3 with two fingers of one hand to further compress it inward. At this time, the clamping strip 7.1 or the locking groove 8.2 that it engages with and limits, and the outer width of the entire guide head 8 will decrease. After the limiting effect of the clamping strip 7.1 is lost, the hand pinching the two clamp handles 8.3 can separate the entire guide head 8 from the adjusting seat 7. At this time, there is no need to slide outward to pull out the guide frame 2; simply moving the guide frame 2 to one side will separate it from the guide head 8 with the puncture needle 5.

[0064] When the guide head 8 is inserted into the mounting groove, the two ends of the guide head 8 through the groove extend outward from the mounting groove and are provided with clamps 8.3 at their ends for easy pressing.

[0065] Furthermore, in this embodiment, the ultrasound probe 1 is a probe structure for abdominal cavity examination, and also includes a sub-plate 3 and a connecting rod 4, which together enclose and fix the ultrasound probe 1.

[0066] like Figure 9As shown, in order to allow two puncture needles 5 to be inserted into a single ultrasound probe 1 at the same time, two guide frames 2 are symmetrically arranged on both sides of the ultrasound probe 1. The guide frames 2 are connected and fixed by a connecting rod 4, and the connecting rod 4 pulls the two guide frames 2 to clamp the ultrasound probe 1.

[0067] Since a single cyst or tumor, once it has a certain space-occupying capacity, requires multiple punctures to collect samples or for treatment, the simultaneous guidance of two puncture needles 5 at different insertion angles can be achieved in real time as described above.

[0068] This invention is not limited to the optional embodiments described above, and anyone can derive other various forms of products based on the inspiration of this invention. The specific embodiments described above should not be construed as limiting the scope of protection of this invention; the scope of protection of this invention should be determined by the claims, and the specification can be used to interpret the claims.

Claims

1. An ultrasonic puncture device for performing punctures in the abdominal cavity of a patient under the assistance of ultrasound detection, characterized in that: Includes an ultrasonic probe (1) and a guide frame (2) sleeved on the outside of the ultrasonic probe (1). The guide frame (2) is provided with an adjustment seat (7) rotatably connected to the guide frame (2). The adjustment seat (7) has a locking mechanism. After adjusting the relative deflection angle between the adjustment seat (7) and the guide frame (2), the locking mechanism limits the position. The adjusting seat (7) has a mounting groove, and a guide head (8) is provided in the mounting groove. The guide head (8) is provided with guide holes (8.1) of different diameters. The adjusting seat (7) is provided with a limiting structure, which is detachably connected to the guide head (8); The mounting groove is a semi-open groove structure with three open end faces, and the limiting structure is a retaining strip (7.1) provided on the mounting groove. The guide head (8) is a strip structure that fits into the mounting groove. It has a through groove in its length direction, a U-shaped cross-section, an end face that fits into the bottom of the mounting groove, and two ends that extend into the mounting groove. The guide hole (8.1) is located at the bottom of the through groove, and the part of the through groove extending to both ends is provided with a limiting strip (8.4) to reduce the gap between the through grooves. A slot (8.2) that mates with the locking strip (7.1) is provided on the outer wall of the two ends located in the through groove; When the guide head (8) is not subjected to external force, the width of its two ends is greater than the width of the mounting groove. When the guide head (8) is inserted into the mounting groove, the two ends are subjected to force and elastically deform inward, causing the locking strip (7.1) to be locked in the locking groove (8.2) to achieve fixation. The guide hole (8.1) at the top of the guide head (8) is a three-quarters circular hole structure with a notch for the two ends to be squeezed inward. The adjusting seat (7) is made of a hard material that cannot be deformed. The width of the mounting groove of the adjusting seat (7) is smaller than the outer width of the guide head (8), so that the guide head (8) will be squeezed inward when installed in the mounting groove. Because it has a notch and the guide hole (8.1) is set close to the top, the cross-sectional radius of the guide hole (8.1) does not change when it is squeezed inward during bending deformation. When the guide head (8) is inserted into the mounting groove, the two ends of the guide head (8) extend outward from the mounting groove and are provided with a clamp (8.3) at the end for easy pressing.

2. The ultrasonic puncture device according to claim 1, characterized in that: The length direction of the mounting groove is consistent with the guide hole (8.1) of the installed guide head (8).

3. The ultrasonic puncture device according to claim 1, characterized in that: The guide frame (2) includes a fixed rotating shaft (9), and the adjusting seat (7) is rotatably connected to the guide frame (2) through the rotating shaft (9); The guide frame (2) is also provided with a slide rail (10). The adjustment seat (7) has a protrusion that is inserted into the slide rail (10) and slides within the slide rail (10). The slide rail (10) is an arc with the rotating shaft (9) as the center.

4. The ultrasonic puncture device according to claim 3, characterized in that: The end of the protrusion on either side has a thread, and a positioning nut (11) is engaged by the thread. The positioning nut (11) is located outside the guide frame (2) and the adjusting seat (7) is fixed / released relative to the guide frame (2) by screwing the positioning nut (11).

5. The ultrasonic puncture device according to claim 4, characterized in that: The slide rail (10) on the outside of the guide frame (2) has a textured surface.

6. An ultrasonic puncture device according to any one of claims 1-5, characterized in that: The ultrasound probe (1) is a probe structure for abdominal examination, and also includes a sub-plate (3) and a connecting rod (4). The ultrasound probe (1) is wrapped and fixed by the sub-plate (3), the connecting rod (4) and the guide frame (2).

7. An ultrasonic puncture device according to any one of claims 1-5, characterized in that: The ultrasound probe (1) is a probe structure used for abdominal examination. Two guide frames (2) are symmetrically arranged on both sides of the ultrasound probe (1). The guide frames (2) are connected and fixed by a connecting rod (4), and the connecting rod (4) pulls the two guide frames (2) together to clamp the ultrasound probe (1).

Images