Puncture needle angle adjusting device

Abstract

The utility model discloses a puncture needle angle adjusting device which comprises a bottom plate and a turnover plate, the bottom plate is hinged to the turnover plate, a first connecting edge is arranged at the hinged position of the bottom plate and the turnover plate, a first groove part is arranged on the turnover plate and is perpendicular to the first connecting edge, and a second groove part is arranged on the turnover plate and is perpendicular to the first connecting edge. A dial is arranged on the surface, opposite to the turnover plate, of the bottom plate and arranged in the first groove part in a penetrating mode. The bottom plate is hinged to the turnover plate, the dial is vertically arranged on the bottom plate, in the process that the turnover plate rotates relative to the bottom plate, the angle of the device can be adjusted and visualized, an operator can conveniently adjust the angle according to actual needs, and the device is simple in structure and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic medical instruments, in particular to a puncture needle angle adjustment device. Background Art

[0002] For osteoporotic vertebral fractures, vertebroplasty has the advantages of good efficacy and high safety. The conventional puncture routes for vertebroplasty include bilateral pedicle approach and unilateral parapedicle approach. In the paravertebral approach, the puncture needle enters the vertebral body through the posterolateral superior part of the vertebral body, which has the advantages of high safety and simple operation. However, due to the large distance from the posterolateral superior puncture point to the midline of the spinous process, the inclination angle of the ideal puncture path (the angle between the puncture path and the sagittal plane of the human body) is large, and the puncture operation is difficult. Therefore, the surgeon usually needs to adjust the angle of the puncture needle multiple times according to visual and hand feeling to reach the puncture target, which may damage nerves, blood vessels, and even important organs. Utility Model Content

[0003] The utility model provides a puncture needle angle adjustment device, which is hinged by a bottom plate and a folding plate, and a dial is vertically arranged on the bottom plate. The folding plate rotates relative to the bottom plate to achieve adjustable and visualized angles of the device, which is convenient for an operator to adjust the angle according to actual needs. The device has a simple structure and is easy to operate.

[0004] According to one aspect of an embodiment of the utility model, a puncture needle angle adjustment device is provided, comprising a base plate and a folding plate, wherein the base plate and the folding plate are hinged, and the hinge between the base plate and the folding plate is a first connecting edge, and a first groove portion is provided on the folding plate, and the first groove portion is perpendicular to the first connecting edge, and a dial is provided on the surface of the base plate opposite to the folding plate, and the dial is penetrated in the first groove portion.

[0005] In a further technical solution, a dial locking unit is provided on the folding plate, and the dial locking unit includes a first locking element and a locking element positioning seat, the first locking element is installed in the locking element positioning seat, and the installation direction of the locking element positioning seat is parallel to the first connecting edge.

[0006] In a further technical solution, the dial locking unit further includes a limit block, and the limit block is arranged on a side of the locking element positioning seat close to the first connecting edge.

[0007] In a further technical solution, a handle is provided on the first locking element, and the first locking element includes a first state and a second state. The first state represents that the handle is arranged on the end face of the limit block close to the dial, and the second state represents that the handle is arranged on the end face of the limit block away from the dial.

[0008] In a further technical solution, a groove is provided on the end surface of the limit block close to the scale plate, and the groove direction is perpendicular to the first connecting edge.

[0009] In a further technical solution, the scale plate is a semicircular plate-shaped structure, and the center point of the scale plate and the first connecting edge are located in the same straight line.

[0010] In a further technical solution, a plurality of angle scale lines are arranged on at least one surface of the scale plate, and a locking element installation through hole is arranged on each of the angle scale lines.

[0011] In a further technical solution, a second groove is provided on the bottom plate, the second groove is perpendicular to the first connecting edge, and a scale line is provided on the edge of the groove of the second groove.

[0012] In a further technical solution, the bottom plate is provided with a third groove portion, one end of the third groove portion is connected to the second groove portion, and the other end of the third groove portion is connected to any one side of the bottom plate.

[0013] In a further technical solution, the bottom plate and the folding plate are both planar plate structures.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The bottom plate and the folding plate are hinged, and the folding plate can rotate relative to the bottom plate to achieve adjustable angle of the device, which is convenient for the operator to adjust the angle according to actual needs. A dial is vertically arranged on the bottom plate, and the rotation angle of the folding plate can be observed in real time through the dial when the folding plate rotates, thereby realizing visualization of the angle adjustment. The device has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the dial of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the dial locking unit of the utility model;

[0020] Figure 5 and Figure 6 It is a schematic diagram of the auxiliary line of the puncture point of the utility model.

[0021] The markings of the components in the accompanying drawings are as follows:

[0022] 1. Bottom plate; 11. First connecting edge; 12. Scale plate; 121. Guide strip; 13. Second groove; 14. Third groove; 2. Folding plate; 21. First groove; 22. Scale plate locking unit; 221. First locking element; 2211. Handle; 222. Locking element positioning seat; 223. Limiting block; 3. Articulated part. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] See also Figure 1 The utility model provides a puncture needle angle adjustment device, including a bottom plate 1 and a folding plate 2, the bottom plate 1 and the folding plate 2 are hinged, the hinge between the bottom plate 1 and the folding plate 2 is a first connecting edge 11, a first groove 21 is provided on the folding plate 2, the first groove 21 is perpendicular to the first connecting edge 11, a dial 12 is provided on the surface opposite to the bottom plate 1 and the folding plate 2, and the dial 12 is inserted in the first groove 21.

[0025] In an exemplary embodiment, if Figure 2 As shown, the maximum opening and closing angle of the bottom plate 1 and the folding plate 2 is 180°, that is, when the bottom plate 1 and the folding plate 2 are in the state of the maximum opening and closing angle, the bottom plate 1 and the folding plate 2 are located in the same plane, and the hinge of the bottom plate 1 and the folding plate 2 represents the adjacent edges of the bottom plate 1 and the folding plate 2. The bottom plate 1 and the folding plate 2 are connected by a hinge 3. For example, the hinge 3 is a hinge. The two blades of the hinge are respectively fixed on the bottom plate 1 and the folding plate 2 to ensure that the folding plate 2 can rotate. The hinge is made of stainless steel and has good strength and corrosion resistance.

[0026] In another embodiment, the base plate 1 and the folding plate 2 are connected via a bearing. Specifically, two mounting blocks are provided on the plate surface of the base plate on which the dial 12 is provided, and the two mounting blocks are relatively arranged at the plate surface edge of the base plate, and each mounting block is provided with a through hole. Guide rods are extended from the relatively arranged side edges of the plate surface of the folding plate 2, and the axial direction of the guide rods is parallel to the first connecting edge 11. The guide rods are installed in the through holes to ensure that the folding plate 2 can rotate relative to the base plate 1. Preferably, the guide rods and the folding plate 2 are an integrally formed structure, which is simple in structure and easy to operate.

[0027] It should be noted that if Figure 1 and Figure 2 As shown, the dial 12 is perpendicular to the base plate 1, and a first groove 21 perpendicular to the first connecting edge 11 is provided on the folding plate 2. The dial 12 passes through the first groove 21 during the rotation of the folding plate 2, thereby ensuring that the rotation angle of the folding plate 2 can be visualized during the rotation process relative to the base plate 1. The user can adjust the angle according to actual needs, and the device structure is simple and practical.

[0028] A dial locking unit 22 is provided on the folding plate 2. The dial locking unit 22 includes a first locking element 221 and a locking element positioning seat 222. The first locking element 221 is installed in the locking element positioning seat 222. The installation direction of the locking element positioning seat 222 is parallel to the first connecting edge 11.

[0029] In an exemplary embodiment, if Figure 4 As shown, the first locking element 221 is a plug rod, the locking element positioning seat 222 is a fixing seat for the latch, the locking element positioning seat 222 is fixed by welding or detachably installed on the folding plate 2 by screws, the plug rod moves in the locking element positioning seat 22 along a direction parallel to the first connecting edge 11, when the end of the first locking element 221 moves to the locking element installation through hole, the folding plate 2 is in a fixed state, and the angle is not adjustable. When the end of the first locking element 221 is withdrawn from the locking element installation through hole, the folding plate 2 is in an adjustable state, and the operator can adjust the angle between the folding plate 2 and the bottom plate 1 according to actual needs. The device has a simple structure and is convenient and labor-saving to operate.

[0030] The dial locking unit 22 further includes a limit block 223, which is disposed on a side of the locking element positioning seat 222 close to the first connecting edge 11. In an exemplary embodiment, the limit block 223 may be a rectangular parallelepiped, a cube, or a cylinder, and the present application does not specifically limit the shape of the limit block 223.

[0031] A handle 2211 is provided on the first locking element 221, and the first locking element 221 includes a first state and a second state. The first state indicates that the handle 2211 is arranged on the end face of the limit block 223 close to the dial 12, and the second state indicates that the handle 2211 is arranged on the end face of the limit block 223 away from the dial 12.

[0032] In an exemplary embodiment, when the handle 2211 is moved in a direction parallel to the first connecting edge 11 to the end surface of the stop block 223 close to the dial 12, the end of the first locking element 221 is inserted into the locking element installation hole, and the dial 12 and the folding plate 2 are fixed by the first locking element 221, and the first state represents the state in which the angle between the folding plate 2 and the bottom plate 1 is fixed. When the handle 2211 is moved in a direction parallel to the first connecting edge 11 to the end surface of the stop block 223 away from the dial 12, the end of the first locking element 221 is withdrawn from the locking element installation hole, and there is no connection relationship between the folding plate 2 and the dial 12, and the second state represents the state in which the angle between the folding plate 2 and the bottom plate 1 is adjustable. The above-mentioned first locking element 221 is used to realize two state transitions of the folding plate 2: an angle-adjustable state relative to the base plate 1 and an angle-fixed state relative to the base plate 1. The device has a simple structure and realizes visual angle adjustment. At the same time, the switching of the folding plate mode is convenient and labor-saving, and the operation is simple and the accuracy is high.

[0033] The end surface of the limit block 223 close to the scale plate 12 is provided with a groove, and the groove direction is perpendicular to the first connecting edge 11. In an exemplary embodiment, Figure 4 As shown, a groove for placing the handle 2211 is provided on the end face of the limit block 223 close to the dial 12. When the handle 2211 moves along a direction parallel to the first connecting edge 11 to the end face of the limit block 223 away from the dial 12, the handle 2211 is installed in the groove to prevent the first locking element 221 from being withdrawn from the locking element mounting hole due to accidental touch or shaking in the first state, thereby improving the stability of the device in the locked state.

[0034] The dial 12 is a semicircular plate-like structure, and the center point of the dial 12 is in the same straight line as the first connecting edge 11. In an exemplary embodiment, the dial 12 is any one of rectangular, triangular or semicircular plate structures. The present application does not specifically limit the structure of the dial 12. Taking the case where the dial 12 is a semicircular plate-like structure as an example, because the folding plate 2 rotates relative to the bottom plate 1, the dial 12 uses a semicircular plate-like structure, which is more convenient for the angle adjustment of the device, reduces the slot length of the first slot 21, reduces the degree of damage to the rigidity of the folding plate 2, and makes the device simple to produce and more durable. Preferably, in order to improve human comfort and reduce the situation where the dial 12 contacts the patient's back skin, the dial 12 is a dial with an angle range of 0°-90°, and the portion of the dial 12 extending from the bottom plate 1 is irregularly shaped. Specifically, the end of the dial 12 extending from the bottom and close to the patient is provided with an arc cut angle to improve the patient's comfort during use. It should be explained that the center point of the dial 12 and the first connecting edge 11 are located in the same straight line, which can ensure that during the rotation of the folding plate 2, the angle reading between the folding plate 2 and the bottom plate 1 will not deviate, the angle reading is highly accurate, and the angle adjustment of the device is easy to operate.

[0035] At least one surface of the scale plate 12 is provided with a plurality of angle scale lines, and each angle scale line is provided with a locking element installation through hole.

[0036] In an exemplary embodiment, if Figure 3 As shown, the material of the dial 12 is any one of plastic or stainless steel. Preferably, taking the material of the dial 12 being stainless steel as an example, angle scale lines are provided on the two surfaces of the dial 12 perpendicular to the bottom plate 1, so that the operator can check the angle change between the folding plate 2 and the bottom plate 1 during the angle adjustment process, reduce repeated operations, and improve the adjustment efficiency of the device. Furthermore, each of the angle scale lines is provided with a locking element installation through hole adapted to the first locking element 221, so as to switch the locking element between the first state and the second state. The switching of the folding plate mode is convenient and labor-saving, and the operation is simple and accurate.

[0037] A second groove portion 13 is provided on the bottom plate 1 . The second groove portion 13 is perpendicular to the first connecting edge 11 , and a scale line is provided on the groove edge of the second groove portion 13 .

[0038] In an exemplary embodiment, the second groove 13 is provided on the bottom plate 1, and the intersection of the second groove 13 and the first connecting edge 11 is the puncture point of the puncture needle. The notch edge of the second groove 13 is provided with a length scale line for further checking and confirming the auxiliary line of the puncture point on the patient's skin and the position of the puncture point. Preferably, the slot length of the second groove 13 is 100 mm, which can ensure that the length of the second groove 13 can see the auxiliary line of the puncture point on the patient's skin, and can also ensure the rigidity of the bottom plate 1. The second groove 13 is provided to further check and confirm the auxiliary line of the puncture point and the position of the puncture point, improve the accuracy of the puncture point, and the device is simple and reliable to operate.

[0039] The bottom plate 1 is provided with a third groove 14 , one end of the third groove 14 is communicated with the second groove 13 , and the other end of the third groove 14 is communicated with any one side of the bottom plate 1 .

[0040] In an exemplary embodiment, the base plate 1 is provided with a third groove 14, one end of which is connected to the second groove 13. Preferably, both the third groove 14 and the second groove 13 are linear grooves. The other end of the third groove 14 is connected to any side of the base plate 1, that is, when the puncture needle is inserted into the patient's body, the base plate 1 and the puncture needle can be separated through the third groove 14, and the device is withdrawn from the patient's body surface. Preferably, the third groove 14 is arranged along the first connecting edge 11, and the connection between the third groove 14 and the second groove 13 is the puncture point of the puncture needle, which makes the separation of the device and the puncture needle simpler, reduces the time spent on withdrawing the device, and improves the efficiency of the operation.

[0041] The bottom plate 1 and the folding plate 2 are both planar plate structures. Preferably, the bottom plate 1 and the folding plate 2 are both planar plate structures. When the bottom plate 1 is a planar plate structure, it is more conducive to fitting the patient's skin surface and maintaining the stability of the device. When the folding plate 2 is a planar plate structure, it can better fit the puncture needle and improve the accuracy of the puncture angle.

[0042] Working principle: First, confirm the puncture point of the puncture needle on the patient's body surface. Figure 5 and Figure 6As shown, the first step is to use a C-arm fluoroscopic vertebral frontal film, first draw the surface projection of the vertebral midline (spinous process line) and the target vertebral contour on the patient's body surface, and then draw a line C parallel to the above spinous process midline on the side of the patient's body surface. The distance between line C and the spinous process midline is m, and the distance m needs to be measured on the CT film. Specifically, after finding the fault of the target vertebra near the upper end plate, line A is the midline of the spinous process vertebra, and line B is an auxiliary line made through the intersection point o of the posterolateral edge of the vertebra with an angle of α with line A. The distance between lines A and B and the intersection of the skin is m. Then perform a lateral film perspective, and use a Kirschner wire to mark the line between the posterior upper edge and the anterior lower edge of the target vertebra. The surface projection of this line is line D, and the intersection of line C and line D is the puncture point P of the puncture needle.

[0043] After confirming the puncture point, place the base plate 1 of the puncture needle angle adjustment device on the patient's back, ensure that the base plate 1 remains in a horizontal position by visual inspection or using a spirit level, align the intersection of the second groove 13 and the third groove 14 with point P, and adjust the angle of the folding plate 2 to α. Since a dial 12 is provided on the base plate 1, the change of the angle can be observed at any time. Stop rotating the folding plate 2 at a position that meets the required angle. At this time, the first locking element 221 moves to the surface of the dial along the direction of the first connecting edge 11 and is inserted into the locking element mounting through hole provided on the required angle scale line. The handle 2211 provided on the first locking element 221 is placed on the end face of the limit block 223 close to the dial 12 for limiting, so as to prevent the first locking element 221 from withdrawing from the locking element mounting through hole. At this time, the folding plate 2 remains fixed, thereby improving the accuracy and flexibility of conventional puncture access surgery. The device has a simple structure and is easy to operate.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A puncture needle angle adjustment device, characterized in that: include: A bottom plate (1) and a folding plate (2), wherein the bottom plate (1) and the folding plate (2) are hinged, the hinged portion between the bottom plate (1) and the folding plate (2) is a first connecting edge (11), a first groove (21) is provided on the folding plate (2), the first groove (21) is perpendicular to the first connecting edge (11), a dial (12) is provided on the surface of the bottom plate (1) opposite to the folding plate (2), and the dial (12) is inserted into the first groove (21).

2. The puncture needle angle adjustment device according to claim 1, characterized in that: A dial locking unit (22) is provided on the folding plate (2), and the dial locking unit (22) comprises a first locking element (221) and a locking element positioning seat (222), wherein the first locking element (221) is installed in the locking element positioning seat (222), and the installation direction of the locking element positioning seat (222) is parallel to the first connecting edge (11).

3. The puncture needle angle adjustment device according to claim 2, characterized in that: The scale plate locking unit (22) further comprises a limit block (223), wherein the limit block (223) is arranged on a side of the locking element positioning seat (222) close to the first connecting edge (11).

4. The puncture needle angle adjustment device according to claim 3, characterized in that: A handle (2211) is provided on the first locking element (221), and the first locking element (221) includes a first state and a second state, the first state representing that the handle (2211) is provided on an end surface of the limit block (223) close to the scale plate (12), and the second state representing that the handle (2211) is provided on an end surface of the limit block (223) away from the scale plate (12).

5. The puncture needle angle adjustment device according to claim 4, characterized in that: A groove is provided on the end surface of the limit block (223) close to the scale plate (12), and the groove is opened in a direction perpendicular to the first connecting edge (11).

6. The puncture needle angle adjustment device according to claim 1, characterized in that: The scale plate (12) is a semicircular plate-shaped structure, and the center point of the scale plate (12) and the first connecting edge (11) are located on the same straight line.

7. The puncture needle angle adjustment device according to claim 6, characterized in that: At least one surface of the scale plate (12) is provided with a plurality of angle scale lines, and each of the angle scale lines is provided with a locking element installation through hole.

8. The puncture needle angle adjustment device according to claim 1, characterized in that: The bottom plate (1) is provided with a second groove portion (13), the second groove portion (13) is perpendicular to the first connecting edge (11), and a scale line is provided on the groove edge of the second groove portion (13).

9. The puncture needle angle adjustment device according to claim 8, characterized in that: The bottom plate (1) is provided with a third groove portion (14), one end of the third groove portion (14) is connected to the second groove portion (13), and the other end of the third groove portion (14) is connected to any side of the bottom plate (1).

10. The puncture needle angle adjustment device according to claim 1, characterized in that: The bottom plate (1) and the folding plate (2) are both planar plate structures.

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