Guide wire and device for preventing mistaken entry of guide wire

Abstract

The utility model relates to the field of medical auxiliary appliances, and discloses a guide wire and a guide wire mistaken entering prevention device, the guide wire mistaken entering prevention device comprises a first shell, a second shell and a limiting piece, the second shell is connected with the first shell, the first shell and the second shell are closed to define a containing cavity, and the limiting piece is arranged in the containing cavity; the limiting pieces are arranged on the inner wall of the first shell and the inner wall of the second shell, and the limiting pieces are located in the containing cavity. The limiting pieces are installed on the first shell and the second shell, and the first shell and the second shell can be rotationally closed or opened, so that the first shell and the second shell can be opened to sleeve the guide wire, and the guide wire is located between the limiting pieces; the ends of the limiting pieces abut against the outer surface of the guide wire to achieve position limitation, so that the guide wire can only move in one direction, the guide wire cannot move towards the human body, and the guide wire is prevented from continuously entering the human body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical auxiliary tools, in particular to a guide wire and a guide wire anti-misinsertion device. BACKGROUND

[0002] In the existing puncture operation, the use of guide wire and catheter is crucial, as they are the guiding and conveying tools of surgical instruments, and the precision and safety of their operation are directly related to the success or failure of the operation. However, in actual operation, when the catheter is sleeved on the outer surface of the guide wire, it often generates a pushing force towards the body due to friction, causing the guide wire to accidentally enter the body completely. To solve this problem, the current practice is to remove the guide wire through surgery or interventional surgery, which undoubtedly increases the risk to the patient and the medical cost, and more importantly, causes unnecessary damage to the patient's body. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, and provide a guide wire and a guide wire anti-misinsertion device.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] The present application provides:

[0006] A guide wire anti-misinsertion device, comprising:

[0007] A first shell;

[0008] A second shell connected with the first shell, the first shell and the second shell being closed to define a containing cavity;

[0009] Limiting pieces, each of which is arranged on the inner wall of the first shell and the inner wall of the second shell, and located in the containing cavity.

[0010] Further, a connecting piece is arranged on the outer wall of the first shell or the second shell, and is used to connect and close the first shell and the second shell.

[0011] Further, the cross section of the first shell and the cross section of the second shell are both semicircular, and the first shell and the second shell are connected to form a pipe body with a circular cross section.

[0012] Further, the connecting piece comprises a base layer, a glue layer is arranged on the base layer, and a peeling layer is arranged on at least a part of the glue layer.

[0013] Further, the guide wire mistaken entry prevention device further comprises a rotating part, which is located between the first shell and the second shell, and is connected with the first shell and the second shell, and the first shell and the second shell are opened and closed by rotating the rotating part.

[0014] Further, the rotating part is internally and / or externally provided with a groove.

[0015] Further, the groove is arc-shaped or sharp-angled.

[0016] Further, the limiting part comprises a connecting part and a limiting part, and the connecting part and the limiting part are arc-shaped or linearly connected.

[0017] Further, the limiting part in the accommodating cavity defines a limiting opening, the limiting opening is provided with a guide wire, the maximum width of the limiting opening is L, and the diameter of the guide wire is D, and D>L.

[0018] The application also provides a guide wire for the guide wire mistaken entry prevention device, the guide wire comprises a wire body, and at least one mark is arranged on the outer surface of the wire body.

[0019] The application is provided with a limiting part on the first shell and the second shell, and the first shell and the second shell can be rotated to be closed or opened, so that the first shell and the second shell can be opened and sleeved on the guide wire, so that the guide wire is located between the limiting parts, and the end of each limiting part abuts against the outer surface of the guide wire to limit the position, so that the guide wire can only move in one direction, and the guide wire cannot move towards the human body, thereby preventing the guide wire from continuing to enter the human body.

[0020] In order to make the above-mentioned purposes, characteristics and advantages of the application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 The overall structure of the mistaken entry prevention device in the closed state is shown.

[0023] Figure 2 The top view of the mistaken entry prevention device is shown.

[0024] Figure 3 A top view of the anti-misentry device according to another embodiment of the present application is shown;

[0025] Figure 4 A schematic view of the overall structure of the anti-misentry device according to the present application in an open state is shown;

[0026] Figure 5 A schematic view of the limiting member according to the present application is shown;

[0027] Figure 6 A schematic view of the connecting member according to the present application is shown;

[0028] Figure 7 A schematic view of the connecting member according to another embodiment of the present application is shown;

[0029] Figure 8 A schematic view of the guide wire according to the present application is shown.

[0030] Main element symbol explanation: 110 - first shell member; 120 - second shell member; 130 - limiting member; 131 - connecting portion; 132 - limiting portion; 140 - accommodating cavity; 150 - groove; 160 - connecting member; 161 - base layer; 162 - adhesive layer; 163 - release layer; 200 - guide wire; 210 - wire body; 221 - first mark point; 222 - second mark point. DETAILED DESCRIPTION

[0031] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar elements or elements having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0033] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the indicated elements. Thus, a feature defined with "first" or "second" can include one or more of the features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly specified and limited otherwise.

[0034] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact or indirectly contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0036] In the process of puncture operation, the guide wire is generally used as a guide to partially penetrate into the body first, and then the catheter is further penetrated into the body through the guide wire as a guide medium after the guide wire reaches the predetermined position. Specifically, generally two hands are needed to operate, that is, one hand holds the guide wire and the other hand holds the catheter. The catheter needs to be sleeved on the outer surface of the outer end of the guide wire, and in this process, since the outer end of the guide wire is covered by the catheter, that is, if the catheter and the guide wire rub against each other or the guide wire shakes, the depth of the guide wire entering the body will be further increased, and in severe cases, the guide wire will enter the body completely. Therefore, the guide wire needs to be fixed during the sleeving process of the catheter, so as to prevent the guide wire from entering the body by mistake.

[0037] The embodiment of the present application provides a guide wire anti-misinsertion device, which comprises a first shell 110, a second shell 120 and a limiting piece 130.

[0038] Specifically, the second shell 120 is connected with the first shell 110, the first shell 110 and the second shell 120 are closed to define a containing cavity 140, the limiters 130 are arranged on the inner walls of the first shell 110 and the second shell 120, and the limiters 130 are located in the containing cavity 140.

[0039] Referring to Figure 1 As shown in the drawings, the first shell 110 and the second shell 120 are rotatably connected, when the first shell 110 and the second shell 120 are closed at a preset position, the first shell 110 and the second shell 120 define the containing cavity 140, the inner walls of the first shell 110 and the second shell 120 are fixedly installed with a plurality of limiters 130, and the limiters 130 can be elastically deformed, when the first shell 110 and the second shell 120 are closed, the plurality of limiters 130 are located in the containing cavity 140, and are uniformly and spacedly distributed in the containing cavity 140.

[0040] In some embodiments, when in use, the guide wire 200 is located between the plurality of limiters 130, and each of the limiters 130 abuts against the outer surface of the guide wire 200, so that the guide wire 200 can only move in one direction, that is, the guide wire 200 cannot move towards the human body due to the blocking of the limiters 130, even if the guide wire 200 rubs against the guide tube when the guide tube is sleeved, the guide wire 200 cannot continue to penetrate into the human body; after the guide tube is completely sleeved on the guide wire 200, and the guide wire 200 extends out of the end of the guide tube away from the human body, at this time, a person can hold the end of the guide wire 200 which extends out, and then the first shell 110 and the second shell 120 can be opened to release the limitation on the guide wire 200.

[0041] With Figure 1In use, the first shell 110 and the second shell 120 are opened, and the first shell 110 and the second shell 120 are sleeved on the outer surface of the guide wire 200 at the puncture position, and then the guide wire 200 is located between the first shell 110 and the second shell 120. Then the first shell 110 and the second shell 120 are rotationally connected and closed, and at this time the guide wire 200 is located between the circles formed by the plurality of limiting members 130, and each limiting member 130 abuts against the outer surface of the guide wire 200. It can be understood that at this time the lower end surface (i.e. the B surface) of the first shell 110 and the second shell 120 abuts against the skin surface around the puncture position, so that the first shell 110 and the second shell 120 have a force point. When the guide wire 200 moves towards the human body, the limiting members 130 abut against the outer surface of the guide wire 200, and the end surfaces of the first shell 110 and the second shell 120 abut against the human skin, so the guide wire 200 cannot move towards the human body any more, thereby achieving the effect of preventing the guide wire 200 from being mistakenly inserted.

[0042] The first shell 110 or the second shell 120 is provided with a connecting member 160 on the outer wall, and the connecting member 160 is used for connecting and closing the first shell 110 and the second shell 120.

[0043] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , in order to enable the first shell 110 and the second shell 120 to be connected and closed, a connecting member 160 is arranged at the closed end of the first shell 110 and the second shell 120, so as to connect the first shell 110 and the second shell 120 at the closed end by the connecting member 160.

[0044] In one embodiment, the connecting member 160 can be an adhesive tape, which is used to combine the first shell 110 and the second shell 120 together, so as to achieve the closed connection of the first shell 110 and the second shell 120.

[0045] In another embodiment, if the first shell 110 and the second shell 120 are in a split type, i.e. the first shell 110 and the second shell 120 are separated, at this time the first shell 110 and the second shell 120 have two combination surfaces, and at this time the two combination surfaces of the first shell 110 and the second shell 120 can also be connected by an adhesive tape, or a long adhesive tape is directly used to wind the first shell 110 and the second shell 120 together, so as to achieve the connection. The connection mode of the first shell 110 and the second shell 120 is not limited here.

[0046] It should be noted that, since the surgery is generally performed in a sterile or relatively clean environment, therefore, the adhesive tape is generally a medical adhesive tape to achieve the connection of the first shell 110 and the second shell 120.

[0047] The cross section of the first shell 110 and the cross section of the second shell 120 are both semicircular, and the first shell 110 and the second shell 120 are connected to form a pipe body with a circular cross section.

[0048] In the embodiment, the first shell 110 and the second shell 120 both have two end faces, which are referred to as A face and B face. It can be understood that the A face is the end face away from the human body, and the B face is the face towards the human body.

[0049] Please continue to refer to Figures 1 to 4 As shown, the two semicircular first shells 110 and the second shells 120 are combined together to form a whole circular shell, and correspondingly, the limiting members 130 are uniformly distributed on the inner wall of the whole circular shell, so that the end of the limiting member 130 towards the center of the circle abuts against the outer surface of the guide wire 200 to limit the position of the guide wire 200.

[0050] The connecting member 160 comprises a base layer 161, and the base layer 161 is provided with an adhesive layer 162, and the adhesive layer 162 is provided with a peeling layer 163 on at least a part of the section.

[0051] Please refer to Figure 6 and Figure 7 As shown, the peeling layer 163 is provided on a part of the section or the whole section of the adhesive layer 162, so that the adhesive layer 162 is isolated from the external environment by the peeling layer 163, thereby maintaining the adhesion of the adhesive layer 162 and having sufficient adhesion to bond and connect the first shell 110 and the second shell 120. The base layer 161 can serve as the base of the adhesive layer 162, and the base layer 161 is used to bear the adhesive layer 162.

[0052] When it is needed to close and connect the first shell 110 and the second shell 120, the peeling layer 163 can be torn off, at which time the adhesive layer 162 is exposed, and then the first shell 110 and the second shell 120 are combined, and then the connection between the first shell 110 and the second shell 120 is achieved by the adhesive layer 162 adhering to the base layer 161. Specifically, the adhesive layer 162 adheres the base layer 161 to the edge of the combined surface of the first shell 110 and the second shell 120.

[0053] It should be noted that if all sections of the adhesive layer 162 are covered by the peeling layer 163, then when the first shell 110 and the second shell 120 are connected, all the peeling layer 163 needs to be peeled off, so that the adhesive layer 162 is completely exposed to the outside, and then it is attached to the connecting part of the outer surface of the first shell 110 and the second shell 120 in turn. This method needs to be operated with both hands and is more complicated in actual operation.

[0054] In another embodiment, the peeling layer 163 only covers part of the adhesive layer 162, and the remaining part is attached to the outer surface of the connecting part of the first shell 110 or the second shell 120 in the initial state. That is, in the initial state, part of the base layer 161 is connected to the first shell 110 or the second shell 120 through the adhesive layer 162, and in use, only part of the peeling layer 163 needs to be peeled off, and then the other part of the base layer 161 is connected to the first shell 110 or the second shell 120 through the adhesive layer 162.

[0055] For example, assuming that in the initial state, part of the base layer 161 is attached to the first shell 110 through part of the adhesive layer 162, and the other part of the adhesive layer 162 is covered and shielded by the peeling layer 163, then in use, the first shell 110 and the second shell 120 are combined first, and then the other part of the peeling layer 163 is peeled off from the adhesive layer 162, and then the base layer 161 is attached to the second shell 120 through the other part of the adhesive layer 162, thereby realizing the closed connection of the first shell 110 and the second shell 120.

[0056] The guide wire mistaken entry prevention device further comprises a rotating part, which is located between the first shell 110 and the second shell 120 and is connected with the first shell 110 and the second shell 120. The first shell 110 and the second shell 120 are opened and closed by rotating the rotating part.

[0057] Please refer to Figures 1 to 4 As shown, the first shell 110 and the second shell 120 are connected and rotated by the rotating part, so that the first shell 110 and the second shell 120 can be closed and opened. The rotating part is located between the first shell 110 and the second shell 120. Specifically, the rotating part can be integrally formed with the first shell 110 and the second shell 120. The rotating part can be a thin-walled sheet that can be deformed. The first shell 110 and the second shell 120 can be connected and rotated by a certain angle about the thin-walled sheet.

[0058] In this embodiment, the first shell 110, the second shell 120, and the rotating part can be integrally formed, and the material can be plastic.

[0059] Please refer to Figure 2 and Figure 3 As shown in the figure, the inner side and / or the outer side of the rotating part is provided with a groove 150; the groove 150 is arc-shaped or sharp-angled.

[0060] In one embodiment, in order to enable the first shell 110 and the second shell 120 to rotate about the rotating part, the groove 150 is provided on the inner side or the outer side of the rotating part, or both the inner side and the outer side of the rotating part, so as to reduce the wall thickness of the rotating part, and enable the first shell 110 and the second shell 120 to rotate by a certain angle relative to each other. The shape of the groove 150 can be arc-shaped or sharp-angled, and the specific shape is not limited here.

[0061] The limiting part 130 comprises a connecting part 131 and a limiting part 132, and the connecting part 131 and the limiting part 132 are connected in an arc-shaped transition or a straight-line transition.

[0062] Please refer to Figure 1 , Figure 4 and Figure 5 As shown in the figure, the limiting part 130 is integrally composed of the connecting part 131 and the limiting part 132, and the connecting part 131 is connected to the inner wall of the first shell 110 or the inner wall of the second shell 120. In order to prevent the connection from being separated, the connecting part 131 should be larger than the limiting part 132 from the side view, so as to have more contact area for connection. Then, the limiting part 132 is in contact with the outer surface of the guide wire 200, and also needs to be deformed to a certain extent. Therefore, the limiting part 132 should be smaller than the limiting part 132.

[0063] The limiting part 130 is overall inclined, and the connecting part 131 and the limiting part 132 can be connected in a curved arc-shaped transition, or can be directly connected in a straight-line transition (not shown in the figure), and the specific connection is not limited here.

[0064] The limiting part 130 in the accommodating cavity 140 defines a limiting opening, the guide wire 200 is arranged in the limiting opening, the maximum width of the limiting opening is L, and the diameter of the guide wire 200 is D, and D>L is satisfied.

[0065] Please continue to refer to Figure 2 and Figure 3As shown, in order to enable the end of each limiting piece 130 to abut against the outer surface of the guide wire 200, so as to realize the movement direction limitation of the guide wire 200, that is, the limiting piece 130 should exert an abutting force on the outer surface of the guide wire 200, for this purpose, the limiting piece 130 needs to be deformed to a certain extent, specifically, after the first shell piece 110 and the second shell piece 120 are connected and closed, a circular limiting opening is formed between the limiting pieces 130, the diameter D of the limiting opening is smaller than the diameter of the guide wire 200, when the guide wire 200 is located in the limiting opening, the end of the limiting piece 130 will be deformed to abut against the outer surface of the guide wire 200, thereby realizing the limitation of the movement direction of the guide wire 200.

[0066] It can be understood that each limiting piece 130 extends towards the A surface and the circular direction, so that the maximum width of the limiting opening defined between each limiting piece 130 is smaller than the diameter of the guide wire, if the guide wire 200 has a force moving towards the human body, that is, when the guide wire 200 moves from the A surface to the B surface, since each limiting piece 130 abuts against the outer surface of the guide wire 200 to block the movement of the guide wire 200, at this time the guide wire 200 cannot continue to move towards the human body, thereby realizing the blocking of the guide wire 200, but when the guide wire 200 moves away from the human body, the limiting piece 130 does not block the guide wire 200, so that the guide wire can smoothly move away from the human body.

[0067] Referring to Figure 8 As shown, the present application also provides a guide wire for the above guide wire anti-misinsertion device, the guide wire 200 comprises a wire body 210, and at least one mark is arranged on the outer surface of the wire body.

[0068] Please continue to refer to Figure 8 As shown, in the present embodiment, the total number of marks is two, specifically, the marks include a first mark point 221 and a second mark point 222, it should be noted that the first mark point 221 can be green, and the second mark point 222 can be red, the second mark point 222 is located at the end of the wire body 210 away from the human body, when puncturing, the wire body 210 is inserted into the human body to the position of the green first mark point 221, which indicates that the predetermined position has been reached, at this time the position of the green first mark point 221 is the puncture point position, the guide wire anti-misinsertion device in the above is installed at the position of the first mark point 221, then the catheter is sleeved on the wire body 210 away from the human body, until the end of the wire body 210 away from the human body is exposed from the end of the catheter, and then the guide wire anti-misinsertion device is taken off from the wire body 210.

[0069] In the embodiment, the distance between the green mark point and the red mark point on the outer surface of the filament 210 is greater than the length of the catheter, specifically, the distance between the green mark point and the red mark point is 5 cm longer than the length of the catheter, in practice, the distance between the green mark point and the red mark point can be set according to actual needs, which is not limited here.

[0070] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0071] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A guidewire misinsertion prevention device, characterized by, The device comprises: a first shell (110); a second shell (120) connected with the first shell (110), the first shell (110) and the second shell (120) being closed to define a containing cavity (140); a limiting member (130) arranged on the inner wall of the first shell (110) and the inner wall of the second shell (120), the limiting member (130) being located in the containing cavity (140).

2. The guidewire misinsertion prevention device of claim 1, wherein, A connecting member (160) is arranged on the outer wall of the first shell (110) or the second shell (120), the connecting member (160) being used for connecting and closing the first shell (110) and the second shell (120).

3. The guidewire misinsertion prevention device of claim 1, wherein, The cross section of the first shell (110) and the cross section of the second shell (120) are both semicircular, and the first shell (110) and the second shell (120) are connected to form a pipe body with a circular cross section.

4. The guidewire misinsertion prevention device of claim 2, wherein, The connecting member (160) comprises a base layer (161), the base layer (161) being provided with a glue layer (162), and the glue layer (162) being provided with a peeling layer (163) on at least a part of a section.

5. The guidewire misinsertion prevention device of claim 1, wherein, The device further comprises a rotating part, the rotating part being located between the first shell (110) and the second shell (120), the rotating part being connected with the first shell (110) and the second shell (120), and the first shell (110) and the second shell (120) being opened and closed by rotating the rotating part.

6. The guidewire misinsertion prevention device of claim 5, wherein, A groove (150) is formed on the inner side and / or the outer side of the rotating part.

7. The guidewire misinsertion prevention device of claim 6, wherein, The groove (150) is arc-shaped or angular.

8. The guidewire misinsertion prevention device of claim 1, wherein, The limiting member (130) comprises a connecting part (131) and a limiting part (132), the connecting part (131) and the limiting part (132) being connected by arc-shaped transition or linear transition.

9. The guidewire misinsertion prevention device of claim 1, wherein, The limiting member (130) in the containing cavity (140) defines a limiting opening, a guide wire (200) being arranged in the limiting opening, the maximum width of the limiting opening being L, and the diameter of the guide wire (200) being D, satisfying D>L.

10. A guide wire, characterized by The guide wire for the device of any one of claims 1-9 comprises a wire body (210), at least one mark being arranged on the outer surface of the wire body (210).

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