Fixing device

Abstract

The utility model provides a fixing device which is used for relatively fixing a medical instrument and a user and comprises a base plate, a width adjusting mechanism and a bandage adjusting mechanism. The substrate is provided with a first main plane which is used for being in contact with a user; the width adjusting mechanism comprises extension plates and adjusting pieces, the extension plates are arranged on the two sides of the base plate in the first direction and extend out of the base plate in the first direction, the first direction is parallel to the first main plane, and the adjusting pieces move along the extension plates to adjust the positions of the adjusting pieces on the extension plates; the bandage adjusting mechanism is arranged on the adjusting piece and used for being fixed relative to the user in the second direction intersecting with the first main plane. According to the fixing device, by means of mutual cooperation of the width adjusting mechanism and the bandage adjusting mechanism, the minimum binding feeling of a user can be achieved, and meanwhile the maximum binding force is provided.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a fixing device. Background Art

[0002] Puncture needles are widely used in modern minimally invasive surgeries. Safely and accurately guiding the tip of the puncture needle to the target area of ​​the patient has always been one of the focuses of the surgeon. In recent years, many medical devices for planning and guiding puncture needles have been developed to guide the puncture needle to be inserted into the target area. Therefore, it is necessary to fix the medical device relative to the patient so that the puncture needle can accurately reach the target point. Fixing the medical device to the patient is one of the methods to fix the medical device relative to the patient. When the patient moves, the device will move with the patient, thereby compensating for the patient's movement. This will make the puncture needle path unaffected by the patient's movement, minimize the potential damage caused by the relative movement between the medical device and the patient, and enable the puncture needle to reach the target point more accurately. How to develop a fixing device with less restraint but strong binding force is a technical problem that needs to be solved urgently. Utility Model Content

[0003] In view of this, the present application provides a fixing device to solve the problem of strong restraint in the fixing device in the prior art.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a fixing device for fixing the medical device relative to the user, the fixing device comprising: a substrate having a first main plane, the first main plane being used to contact the user; a width adjustment mechanism comprising an extension plate and an adjusting member, the extension plates being arranged on both sides of the substrate in a first direction and extending outward from the substrate in the first direction, the first direction being parallel to the first main plane, the adjusting member moving along the extension plate to adjust its position on the extension plate; a strap adjustment mechanism being arranged on the adjusting member and used to fix the medical device relative to the user in a second direction intersecting with the first main plane.

[0005] According to an embodiment of the present application, the second direction is perpendicular to the first main plane.

[0006] According to one embodiment of the present application, the extension plate is provided with a sliding groove extending along the first direction, and the adjusting member includes: a connecting portion, movably arranged in the sliding groove along the first direction; a first locking portion, arranged on the connecting portion, for limiting the relative movement of the connecting portion and the extension plate or for unlocking the relative movement of the connecting portion and the extension plate; an adapter, connected to the bottom of the connecting portion, for connecting to the strap adjustment mechanism.

[0007] According to one embodiment of the present application, the strap adjustment mechanism includes: a clamping member; a buckle connected to the adapter; a strap, one end of which is passed through the buckle and the other end is connected to the clamping member; a second locking portion, which is provided on the buckle and is used to fix the strap to the buckle.

[0008] According to one embodiment of the present application, the adapter is spherical and is rotatably connected to the buckle.

[0009] According to one embodiment of the present application, the substrate includes an elongated portion, which is arranged on one side of the third direction of the substrate and extends outward from the substrate in the third direction. The third direction is parallel to the first main plane and intersects with the first direction.

[0010] According to one embodiment of the present application, the fixing device further includes: an aiming member, both ends of which are connected to the base plate, and the aiming member has an aiming mark.

[0011] According to one embodiment of the present application, the fixing device further includes: a developing mechanism, which is arranged on the side of the substrate facing the user, and the developing mechanism includes at least three developing parts to form a coordinate system to achieve positioning of the fixing device and the medical device.

[0012] According to one embodiment of the present application, the developing member includes aluminum wire and / or titanium ball.

[0013] According to one embodiment of the present application, the substrate includes: a main board, the main board is used to form the first main plane and a second main plane arranged opposite to the first main plane, the second main plane is used to contact the medical device; two support plates, arranged opposite to each other on both sides of the main board in the first direction, the two support plates extending in the third direction; wherein the second main plane is lower than the plane formed by the two support plates.

[0014] According to one embodiment of the present application, the fixing device has a first clamping portion on a side facing the medical device, and the medical device has a first matching portion on a side facing the fixing device, and the first clamping portion and the first matching portion are configured to be clamped with each other.

[0015] According to one embodiment of the present application, the fixing device includes a pad, and the pad is arranged on a side of the substrate facing away from the medical device.

[0016] The beneficial effect of the present application is that the fixing device of the present application utilizes an adjusting member to slide on the extension plates on both sides of the first direction of the substrate to adjust the width, so that when the strap adjustment mechanism connected to the adjusting member is used to bind users of different body shapes, the sense of restraint is minimized while providing the maximum tightening force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 It is a schematic diagram of an embodiment of the assembly of the fixing device of the present application and the medical device;

[0019] Figure 2 It is a schematic diagram of an embodiment of the fixing device of the present application;

[0020] Figure 3 It is a bottom view schematic diagram of the assembly of the fixture and medical device of the present application;

[0021] Figure 4 It is a partial schematic diagram of an embodiment of the fixing device of the present application;

[0022] Figure 5 This is a schematic diagram of an embodiment of the fixing device of the present application when used in conjunction with a user;

[0023] Figure 6 It is a force decomposition diagram of an embodiment of the fixing device of the present application;

[0024] Figure 7 It is a schematic diagram of an embodiment of an adjusting member of the fixing device of the present application;

[0025] Figure 8 It is a three-dimensional structural schematic diagram of an embodiment of a clamping member of the fixing device of the present application;

[0026] Fig. 9 It is a front structural schematic diagram of a clamping member of an embodiment of the fixing device of the present application in a locked state;

[0027] Fig.10 It is a front structural schematic diagram of an embodiment of a clamping member of a fixing device of the present application in an unlocked state;

[0028] Fig.11 It is a structural schematic diagram of an embodiment of the assembly of a base plate and a sighting member of the fixing device of the present application;

[0029] Fig.12 This is a schematic structural diagram of an embodiment of the aiming member of the fixing device of the present application;

[0030] Fig.13 It is a schematic diagram of the exploded structure of a substrate and a developing mechanism of an embodiment of the fixing device of the present application;

[0031] Fig.14It is a structural schematic diagram of an embodiment of the assembly of a substrate and a developing mechanism of the fixing device of the present application;

[0032] Fig.15 This is a schematic structural diagram of a substrate of an embodiment of the fixing device of the present application;

[0033] Fig.16 It is a structural schematic diagram of an embodiment of the assembly of a substrate and a gasket of the fixing device of the present application;

[0034] Fig.17 It is a structural schematic diagram of an embodiment of the assembly of a substrate and a gasket of the fixing device of the present application;

[0035] Fig.18 It is a structural schematic diagram of an embodiment of the folding of the extension plate of the fixing device of the present application. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] The present application provides a fixing device 10 for fixing a medical device 11 relative to a user 12, and the fixing device 10 includes a substrate 13, a width adjustment mechanism 14, and a strap adjustment mechanism 15. The substrate 13 has a first main plane a, and the first main plane a is used to contact the user 12; the width adjustment mechanism 14 includes an extension plate 141 and an adjustment member 142, the extension plate 141 is arranged on both sides of the substrate 13 in a first direction x, and extends outward from the substrate 13 in the first direction x, the first direction x is parallel to the first main plane a, the adjustment member 142 moves along the extension plate 141 to adjust its position on the extension plate 141, and the first direction x can be adjusted and fixed to the extension plate 141; the strap adjustment mechanism 15 is arranged on the adjustment member 142, and is used to be fixed relative to the user 12 in a second direction y intersecting with the first main plane a.

[0039] Specifically, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The fixing device 10 is used to fix the medical device 11 relative to the user 12. The substrate 13 is the main part of the fixing device 10, and the substrate 13 has a first main plane a contacting the user 12, and the other side of the substrate 13 opposite to the first main plane a contacts the medical device 11.

[0040] In the width adjustment mechanism 14, the extension plates 141 are extended on both sides of the base plate 13 in the first direction x to extend the width of the base plate 13 in the first direction x. The adjustment member 142 slides on the extension plates 141, and the fixed position of the adjustment member 142 can be determined according to the body shape of the user 12. When the user 12 is large, the adjustment members 142 on the extension plates 141 on both sides slide in the first direction x toward a position away from the base plate 13; when the user is small, the adjustment member 142 slides in the first direction x toward a position close to the base plate 13.

[0041] The strap adjustment mechanism 15 is connected to the adjustment member 142. When the position of the adjustment member 142 on the extension plate 141 is determined according to the body shape of the user 12, the strap adjustment mechanism 15 can be relatively fixed to the user 12 in the second direction y. The second direction y intersects with the first direction x.

[0042] In this embodiment, the second direction y is preferably perpendicular to the first main plane a, that is, the positions of the strap adjustment mechanism 15 and the extension plate 141 are perpendicular to each other. Figure 6 , after the medical device 11 and the fixing device 10 are installed on the user 12, when the medical device 11 is subjected to the puncture force Fp, the force conditions of the strap adjustment mechanism 15 when it is fixed at different positions. When the strap adjustment mechanism 15 is fixed at position A close to the medical device 11, the binding force F1 of the strap adjustment mechanism 15 will be decomposed into Fx and Fy, and only the component force Fy is used to offset the puncture force Fp. The purpose of offsetting the puncture force Fp is to stabilize the medical device 11 on the fixing device 10 without causing positional displacement. After using the width adjustment mechanism 14, according to the body shape of the user 12, the adjustment member 142 is slid on the extension plate 141 to point B, so that the strap adjustment mechanism 15 is perpendicular to the base plate 13, and the binding force F2 at this time can be converted into a force to offset the puncture force Fp. That is, in order to offset the puncture force Fp of the same magnitude, the binding force at position A is greater than the binding force at position B. When binding at position A, the comfort of the user 12 is lower than that when binding at position B. Therefore, when the strap adjustment mechanism 15 is vertically bound to the fixing device 10, the user 12 can feel the minimum binding force while stabilizing the medical device 11 to the greatest extent when the medical device 11 is subjected to the puncture force.

[0043] In this embodiment, a width adjustment mechanism 14 is installed on the base plate 13. By adjusting the position of the strap adjustment mechanism 15 on the extension plate 141, the strap adjustment mechanism 15 is adjusted to be perpendicular to the fixing device 10 and the extension plate 141, so that the binding force of the strap adjustment mechanism 15 on the user 12 is used as much as possible to offset the puncture force caused by the puncture needle, thereby achieving the purpose of minimizing the binding force used to offset the puncture force.

[0044] In other embodiments, the positions of the strap adjustment mechanism 15 and the extension plate 141 are not limited to be perpendicular to each other.

[0045] According to an embodiment of the present application, the extension plate 141 is provided with a sliding groove 1411 extending along the first direction x, and the adjusting member 142 includes a connecting portion 1421, a first locking portion 1422 and an adapter 1423. The connecting portion 1421 is movably arranged in the sliding groove 1411 along the first direction x; the first locking portion 1422 is arranged on the connecting portion 1421, and is used to limit the relative movement of the connecting portion 1421 and the extension plate 141 or to unlock the relative movement of the connecting portion 1421 and the extension plate 141; the adapter 1423 is connected to the bottom of the connecting portion 1421, and is used to connect with the strap adjustment mechanism 15.

[0046] Specifically, with reference to Figure 4 and Figure 7 , the connecting part 1421 slides along the first direction x on the sliding groove 1411 of the extension plate 141. The connecting part 1421 is slid according to the body shape of the user 12 to determine the best position in which the strap adjustment mechanism 15 can be as perpendicular to the extension plate 141 as possible. The best position can make the tightening force applied by the strap adjustment mechanism 15 act as much as possible on offsetting the puncture force caused by the puncture needle, thereby improving the user experience. After confirming the best tightening position, the end Q of the first locking part 1422 rotates from the first position c to the second position d, and the purpose of locking the connecting part 1421 is achieved through friction to limit the relative movement of the connecting part 1421 and the extension plate 141. The end Q of the first locking part 1422 rotates from the second position d to the first position c to achieve the purpose of unlocking the connecting part 1421. The adapter 1423 is fixedly connected to the bottom of the connecting part 1421 for connecting to the strap adjustment mechanism 15.

[0047] In other embodiments, the fixture 10 can be used multiple times, and the extension plate 141 of the fixture 10 can be used as Fig.18 As shown in the storage diagram, the extension plate 141 rotates around the rotation axis 1424 and is retracted into the projection space on the front side of the base plate 13, thereby achieving the purpose of greatly reducing the storage space.

[0048] According to one embodiment of the present application, the strap adjustment mechanism 15 includes a clamping member 151 , a buckle 152 , a strap 153 and a second locking portion 154 .

[0049] Combined with reference Figure 4 , Figure 8 , Fig. 9 , Fig.10 The clamping member 151 is used to connect the end of the strap 153 to the cushion under the user 12. The cushion under the user 12 and the fixing device 10 together wrap the user between the cushion and the fixing device 10. The clamping member 151 is used to achieve the purpose of relatively fixing the user 12 and the fixing device 10. The clamping member 151 includes a clamping body 1511, a clamping lock 1512 and a clamping tip 1513. The clamping lock 1512 cooperates with the clamping body 1511 to clamp the cushion, and the clamping tip 1513 is a rotation joint of the clamping lock 1512. The clamping body 1511 and the clamping lock 1512 have a serrated structure, which ensures that the cushion connected thereto will not fall out. The clamping body 1511 also has a buckle 1511a. When the clamping body 1511 and the clamping lock 1512 are in Fig. 9 In the locked state, the buckle 1511a can limit the rotation of the clamp lock 1512. Fig.10 In the open state, the cushion slides into the opening end of the clamping body 1511, and then the clamp lock 1512 is rotated to Fig. 9 In the clamping state, the gap between the clamping body 1511 and the clamping lock 1512 in the clamping state is smaller than the gap between the clamping body 1511 and the clamping lock 1512 in the open state. The clamping body 1511 and the clamping lock 1512 squeeze the cushion against each other, causing the cushion to deform, thereby achieving the effect of relative fixation of the cushion and the clamping member 151.

[0050] The buckle 152 is connected to the adapter 1423 in the second direction y. In another embodiment, the adapter 1423 is spherical and is rotatably connected to the buckle 152. The connection between the connecting portion 1421 of the width adjustment mechanism 14 and the buckle 152 uses a spherical adapter. Compared with the use of a hinge adapter, the strap 153 has a higher degree of freedom, thereby better fitting the patient's body.

[0051] One end of the strap 153 is inserted into the buckle 152 , and the strap 153 can be stretched or contracted from the buckle 152 according to the body shape of the user. The other end of the strap 153 is connected to the clamp 151 .

[0052] The second locking portion 154 is disposed on the buckle 152. In the locked state, the gap between the buckle 152 and the second locking portion 154 is smaller than the gap between the buckle 152 and the second locking portion 154 in the unlocked state. The buckle 152 and the second locking portion 154 squeeze each other to lock the strap 153 so as to fix the strap 153 to the buckle 152.

[0053] In other embodiments, reference Figure 1 and Fig.13The fixing device 10 has a proximal strap adjustment mechanism 19. The proximal strap adjustment mechanism 19 is an end close to the head of the user 12, and the distal end is an end away from the head of the user 12. The distal end is provided with a width adjustment mechanism 14 and a strap adjustment mechanism 15. The proximal strap adjustment mechanism 19 is provided by Figure 1 The adapter 191 is fixedly connected to the base plate 13, and the proximal strap adjustment mechanism 19 can be rotated through the spherical adapter 191 to adjust the end fixing direction. Compared with the use of a hinge adapter, the spherical adapter 191 has a higher degree of freedom, so that the straps of the proximal strap adjustment mechanism 19 fit the human body better. Of course, in this embodiment, the width adjustment mechanism 14 can also be set at the end of the proximal strap adjustment mechanism 19 close to the base plate 13, so that the proximal end of the fixing device 10 has the same structure as the distal end, that is, the width adjustment mechanism 14 is set at both the proximal end and the distal end of the fixing device 10.

[0054] According to an embodiment of the present application, the substrate 13 includes an extension portion 131, which is disposed on one side of the substrate in the third direction z and extends outward from the substrate 13 in the third direction z. The third direction z is parallel to the first principal plane a and intersects the first direction x. Figure 2 The substrate 13 extends a certain distance away from the user's head to form an extension portion 131, so that when the substrate 13 is fixed on the user, it can press the user's surgical area to a certain extent, making the user and the medical device 11 fit better.

[0055] According to an embodiment of the present application, the fixing device 10 further includes a sighting member 16, both ends of which are connected to the base plate 13, and the sighting member 16 has a sighting mark 161. Fig.11 and Fig.12 , the two ends of the back of the aiming piece 16 have pins 162, and the pins 162 are inserted into the pin holes (not shown) at the corresponding positions of the substrate 13. In some embodiments, after the user's surgical area is indicated by the image, the opening circle of the aiming piece 16 is aligned with the user's expected surgical area. The opening circle of the aiming piece 16 is the aiming mark 161. The aiming mark 161 can be a round hole mark with a cross shape, or other shape marks that can mark the expected surgical area of ​​the end effector of the medical device 11. After aligning the aiming mark 161 on the aiming piece 16 with the user's expected surgical area, the medical staff can move the substrate 13 on the user's body according to the situation, while keeping the position of the aiming mark 161 unchanged, so that it is adjusted to a position and orientation that is convenient for installing the substrate 13 and the medical device 11. After confirming the position and orientation of the substrate 13 and the medical device 11 according to the aiming mark 161, the end effector of the medical device 11 performs operations such as puncture through the aiming mark 161. The setting of the aiming piece 16 improves the installation accuracy of the fixing device 10 and shortens the preoperative preparation time.

[0056] According to an embodiment of the present application, the fixing device 10 further includes a developing mechanism 17, which is disposed on the side of the substrate 13 facing the user 12, and includes at least three developing parts 171 to form a coordinate system to achieve positioning of the fixing device 10 and the medical device 11. Fig.13 and Fig.14 When the fixed medical device 11, the fixing device 10, and the user 12 are sent into the CT, the positioning cannot be known because the device cannot be developed. In this embodiment, the developing mechanism 17 is arranged on the side of the substrate 13 facing the user 12, and the fixing device 10 is located in the CT and a coordinate system is established by using an image algorithm to accurately position the loaded medical device 11. In this embodiment, at least three developing parts 171 are required to establish a coordinate system.

[0057] According to one embodiment of the present application, the developing member 171 includes aluminum wire and / or titanium ball. The aluminum wire is 99.9% high purity aluminum wire, and the titanium ball is TC4 ball, which is used for image positioning in CT. When the medical device 11 and the fixing device 10 are in CT, the image algorithm uses Fig.13 The four titanium balls and "N"-shaped aluminum wire shown in the figure are used to accurately locate the relative positions of the fixing device 10, the medical device 11 and the human body. Fig.14 The figure shows a view after the titanium ball and the aluminum wire are mounted on the base plate 13. The titanium ball is mounted on the base plate 13 and fixed by a titanium ball fixing cover 172. In other embodiments, it is not limited to four titanium balls or two "N"-shaped aluminum wires.

[0058] The specific working mode of the developing part 171 is as follows: the medical device 11 is installed on the fixing device 10, the fixing device 10 is fixed to the user 12 through the strap 153, and the operated part of the user 12 is scanned in the CT device. The algorithm calculates the coordinates of the four titanium balls in the CT coordinate system based on the CT image, and then converts the two coordinate systems based on the pre-provided coordinates of the titanium balls in the fixing device 10 coordinate system, thereby determining the precise position of the fixing device 10 and the attached medical device 11 in the CT. Then the program calculates the position to which the medical device 11 needs to be adjusted, and finally activates the medical device 11.

[0059] According to one embodiment of the present application, the substrate 13 includes a main board 132 and two support boards 133. The main board 132 includes a second main plane b in contact with the medical device 11. The second main plane b and the first main plane a are located on opposite sides of the main board 132. The two support boards 133 are relatively arranged on both sides of the main board 132 in a first direction x, and the two support boards 133 are extended in a third direction z. The second main plane b is lower than the plane formed by the two support boards 133.

[0060] Specifically, refer to Fig.15The main board 132 and two support boards 133 form the base board 13. The second main plane b where the main board 132 is located is lower than the plane formed by the two support boards 133, so that the medical device 11 installed on the second main plane b can be embedded in the base board 13. The medical device 11 is slightly recessed into the fixture 10, so that the end effector of the medical device 11 can be closer to the patient's skin. When the medical device 11 is an insertion device, this design will effectively reduce the distance between the end of the insertion device and the patient's skin, thereby reducing the ineffective distance of, for example, a biopsy needle or an ablation needle.

[0061] In other embodiments, the main board 132 is of hollow design, that is, the main board 132 has a slot 134 that passes through the first main plane a and the second main plane b. The slot 134 effectively reduces the distance between the end of the insertion device and the patient's skin while reducing the weight of the bracket 13 and improving user comfort.

[0062] According to one embodiment of the present application, the fixing device 10 has a first clamping portion (not shown in the figure) on one side facing the medical device 11, and the medical device 11 has a first matching portion (not shown in the figure) on the side facing the fixing device 10. The first clamping portion and the first matching portion cooperate with each other, so that the medical device 11 Figure 1 The card shown in the figure is arranged on the fixing device 10 to achieve the purpose of locking.

[0063] According to one embodiment of the present application, the fixing device 10 includes a pad 18, which is arranged on the side of the substrate 13 away from the medical device 11. According to the different surgical areas of different medical devices 11, or the different body curves of the surgical areas of the user, the fixing device 10 needs to be slightly adjusted to ensure that the working area of ​​the medical device 11 fits the user as closely as possible. At this time, one or more pads 18 are placed under the substrate 13. Fig.16 and Fig.17 Two (but not limited to) possible installation methods of the pad 18 are shown. The pad 18 is made of fabric and can be filled with a plastic material such as an appropriate amount of EPP particles or cotton. When the strap 153 applies appropriate pressure, the pad 18 will ensure that the base plate 13 does not deform, the working space is more closely fitted to the patient's body, and the contact area between the fixing device 10 and the user is larger, making the mutual fixation between the two more stable.

[0064] The terms "first", "second", "third" in this application are only used for descriptive purposes and cannot be understood as indicating the quantity of the indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of these features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "include" and "have" and any of their variations are intended to cover non-exclusive inclusions. The process, method, system, product or equipment such as including a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0065] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A fixing device for fixing a medical device relative to a user, characterized in that: The fixing device comprises: A substrate having a first main plane, wherein the first main plane is used for contacting with a user; A width adjustment mechanism, comprising an extension plate and an adjustment member, wherein the extension plates are arranged on both sides of the substrate in a first direction and extend outward from the substrate in the first direction, the first direction is parallel to the first main plane, and the adjustment member moves along the extension plate to adjust its position on the extension plate; A strap adjustment mechanism is provided on the adjustment member and is used to be fixed relative to the user in a second direction intersecting with the first main plane.

2. The fixing device according to claim 1, characterized in that: The second direction is perpendicular to the first main plane.

3. The fixing device according to claim 1, characterized in that: The extension plate is provided with a sliding groove extending along the first direction, and the adjustment member comprises: A connecting portion, movably disposed in the sliding groove along the first direction; a first locking portion, provided at the connecting portion, for limiting the relative movement of the connecting portion and the extending plate or for unlocking the relative movement of the connecting portion and the extending plate; An adapter is connected to the bottom of the connecting portion and is used to connect to the strap adjustment mechanism.

4. The fixing device according to claim 3, characterized in that: The strap adjustment mechanism comprises: Clamping parts; A buckle connected to the adapter; A strap, one end of which is passed through the buckle and the other end is connected to the clamping member; The second locking portion is arranged on the belt buckle and is used to fix the strap to the belt buckle.

5. The fixing device according to claim 4, characterized in that: The adapter is spherical and is rotatably connected to the belt buckle.

6. The fixing device according to claim 1, characterized in that: The substrate includes an elongated portion, which is disposed on one side of a third direction of the substrate and extends outward from the substrate in the third direction. The third direction is parallel to the first principal plane and intersects with the first direction.

7. The fixing device according to claim 1, characterized in that: The fixing device also includes: The aiming piece has two ends connected to the base plate and has an aiming mark.

8. The fixing device according to claim 1, characterized in that: The fixing device also includes: The developing mechanism is arranged on the side of the substrate facing the user, and the developing mechanism includes at least three developing parts to form a coordinate system to realize the positioning of the fixing device and the medical device.

9. The fixing device according to claim 8, characterized in that: The developing member includes aluminum wire and / or titanium ball.

10. The fixing device according to claim 6, characterized in that: The substrate comprises: A main board, the main board is used to form the first main plane and a second main plane arranged opposite to the first main plane, the second main plane is used to contact with the medical device; Two support plates are arranged opposite to each other on both sides of the main board in the first direction, and the two support plates are extended in the third direction; Wherein, the second main plane is lower than the plane formed by the two support plates.

11. The fixing device according to claim 1, characterized in that: The fixing device has a first clamping portion on a side facing the medical device, and the medical device has a first matching portion on a side facing the fixing device. The first clamping portion and the first matching portion are configured to be clamped with each other.

12. The fixing device according to claim 1, characterized in that: The fixing device comprises a pad, and the pad is arranged on a side of the base plate away from the medical device.

Images