Mouth gag connecting device

Abstract

The utility model discloses a mouth gag connecting device which is applied to a Davis mouth gag comprising a hook and a connecting plate and comprises a first connecting piece, the first connecting piece is provided with a working groove allowing the hook to enter, the groove wall of the working groove is provided with a working channel in the first direction, and the working groove further comprises a first extrusion face capable of being attached to the inner side of the hook; the first extrusion surface is opposite to the working channel; the second connecting piece is arranged in the working channel and can do linear motion along the working channel, the second connecting piece is provided with a second extrusion face, the second connecting piece can be close to the first extrusion face along the working channel, and the hook of the mouth gag can be extruded and fixed under the combined action of the first extrusion face and the second extrusion face; the Davis mouth gag can be rapidly fixed to the support under the condition that the surgical sterile requirement is met, so that the Davis mouth gag is fixed.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to an opener connection device. Background Art

[0002] David's mouth opener is widely used in operations such as lower tonsil surgery. During the operation, the patient lies on the operating table, and the tongue in a relatively relaxed state will block the pharynx, making it impossible to fully expose the pharynx to the surgical field of view, affecting the doctor's operation. Therefore, it is necessary to use a mouth opener to fully expose the pharynx to the surgical field of view; at the same time, the mouth opener is used to prop open the mouth, so that the mouth is in an open state, allowing medical instruments to enter the oral cavity for surgical operations.

[0003] At present, David's mouth opener is mostly hung on a tray through the hook at the end of the tongue depressor, and surgical instruments are also placed on the tray. During the operation, the doctor adjusts the patient's head position and the tray shakes, and the patient's mouth and the tray will be pulled against each other. At present, in the clinical use of the mouth opener, because there is a sterile sheet between the mouth opener hook and the tray, the tongue depressor hook and the tray are prone to relative movement, and the tongue depressor hook sometimes falls off the tray; and the doctor sometimes needs to touch the mouth opener during the operation to adjust the position of the mouth opener, so the mouth opener needs to be kept at a high level of cleanliness to reduce the risk of infection in patients after the operation. Therefore, when connecting the mouth opener and the bracket, it is necessary to pay attention to keeping the mouth opener in a sterile state. Utility Model Content

[0004] In order to ensure the cleanliness of the mouth opener, ensure the stability of the mouth opener connection while achieving rapid connection of the mouth opener and avoid affecting the surgical progress, the present application provides an mouth opener connecting device.

[0005] A mouth-opener connecting device is applied to a David's mouth-opener including a hook and a connecting plate, and comprises: a first connecting member, the first connecting member is provided with a working groove allowing the hook to enter, the groove wall of the working groove is provided with a working channel along a first direction, the working groove also includes a first extrusion surface that can fit with the inner side of the hook, and the first extrusion surface is arranged opposite to the working channel; a second connecting member arranged in the working channel, which can make a linear movement along the working channel, the second connecting member is provided with a second extrusion surface, the second connecting member can approach the first extrusion surface along the working channel, and the first extrusion surface and the second extrusion surface can work together to extrude and fix the hook of the mouth-opener.

[0006] In one embodiment of the present application, the first connecting member is provided with a first component, and the second connecting member is provided with a second component. When the first connecting member is close to the second connecting member, the first component and the second component constitute a connecting plate channel that allows the connecting plate to pass through, and the connecting plate channel can limit the movement of the connecting plate.

[0007] In one embodiment of the present application, one end of the working channel is connected to the working tank, and the other end is connected to the outside.

[0008] In one embodiment of the present application, the opener connection device further includes a push rod, which can extend into the working channel along the first direction and push the second connection member to approach the first extrusion surface.

[0009] In one embodiment of the present application, a pushing thread is provided on the side wall of the pushing rod; the first connecting piece is provided with a mating threaded hole that can be threadedly connected to the pushing thread, the working channel is connected to the outside world through the mating threaded hole, the pushing rod can pass through the mating threaded hole into the working channel, and push the second connecting piece in the working channel close to the first extrusion surface.

[0010] In one embodiment of the present application, the first connecting member includes a rotating part and a fixed part. Along the first direction, the rotating part is connected to the fixed part. The fixed part is provided with a working groove, and the rotating part is provided with a matching threaded hole. The rotating part can rotate relative to the fixed part around the axis of the working channel.

[0011] In one embodiment of the present application, the cross-section of the working channel is non-circular; the pushing rod includes a threaded section provided with a pushing thread, and a pushing section connected to the threaded section, and the cross-section of the pushing section is the same as the cross-section of the working channel.

[0012] In one embodiment of the present application, the length of the pushing section is greater than the length of the matching threaded hole.

[0013] In one embodiment of the present application, the cross-sectional shape of the outer wall of the rotating part is circular.

[0014] In one embodiment of the present application, the first extrusion surface and the second extrusion surface are provided with elastic layers.

[0015] The technical solution recorded in this application has at least the following beneficial effects:

[0016] 1. The present application fixes the hook of the opener through the extrusion action of the first extrusion surface and the second extrusion surface. Since the hook of the David's opener is integrally connected to the tongue depressor through the connecting plate, and the opener bracket is connected to the tongue depressor, the joint action of the first extrusion surface and the second extrusion surface can fix the entire opener through the hook. The second connecting member provided with the second extrusion surface can make a linear motion to approach the first extrusion surface and contact with the hook in the working groove. Since the relative positions of the working groove and the working channel are fixed, the joint action of the two ensures the accuracy of the contact position between the second connecting member and the hook of the opener.

[0017] 2. When the push rod and the rotating part are connected by threaded connection so that the first connecting member and the push rod are connected, the push rod can also push the second connecting member to approach the first extrusion surface, so that the second extrusion surface and the first extrusion surface cooperate with each other to fix the hook of the opener. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an exemplary implementation of the present application;

[0019] Figure 2 is a structural schematic diagram of an exemplary implementation of the second connecting member in the present application;

[0020] Figure 3 It is a structural schematic diagram of an exemplary implementation method when the second extrusion surface in the present application is close to the first extrusion surface;

[0021] Figure 4 It is a structural schematic diagram of an exemplary implementation method of the first connecting member and the second connecting member in the present application working together to fix the hook;

[0022] Figure 5 is a schematic structural diagram of an exemplary implementation of the push rod in the present application;

[0023] Figure 6 is a structural schematic diagram of an exemplary implementation of the fixed part and the rotating part in the present application;

[0024] Figure 7 It is a structural schematic diagram of an exemplary implementation method when the pushing section in the present application extends into the working channel;

[0025] Figure 8 It is a structural schematic diagram of an illustrative embodiment of the bracket in the present application.

[0026] In the figure:

[0027] 101, first connecting member; 102, first extrusion surface; 103, working groove; 104, working channel; 105, first component; 106, matching threaded hole; 107, fixing part; 108, rotating part;

[0028] 201, second connecting member; 202, second extrusion surface; 203, second component; 204, connecting plate channel;

[0029] 301, connecting plate; 302, hook; 303, tongue depressor;

[0030] 401, bracket;

[0031] 501, push rod; 502, push section; 503, threaded section;

[0032] 601. Bearing unit. DETAILED DESCRIPTION

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.

[0034] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0035] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0036] See also Figures 1 to 8 Understand this application.

[0037] See also Figure 1 , an opener connecting device, which is applied to a David's opener including a hook 302 and a connecting plate 301, comprising: a first connecting member 101, the first connecting member 101 is provided with a working groove 103 allowing the hook 302 to enter, and the groove wall of the working groove 103 is provided with a working channel 104 along a first direction, see Figure 2 , Figure 3 The working groove 103 also includes a first extrusion surface 102 that can fit with the inner side of the hook 302, and the first extrusion surface 102 is arranged opposite to the working channel 104; a second connecting member 201 is arranged on the working channel 104, which can make a linear motion along the working channel 104, and the second connecting member 201 is provided with a second extrusion surface 202, and the second connecting member 201 can approach the first extrusion surface 102 along the working channel 104. The first extrusion surface 102 and the second extrusion surface 202 work together to squeeze and fix the hook 302 of the opener, see Figure 2 ,by Figure 2 The second connecting member 201 moves to the left along the working channel 104, and continuously approaches the first extrusion surface 102. Figure 3 Finally, the second extrusion surface 202 abuts against the outer side of the opener hook 302, the first extrusion surface 102 contacts the inner side of the opener hook 302, and the first connecting member 101 and the second connecting member 201 fix the hook 302 through the joint action of the first extrusion surface 102 and the second extrusion surface 202. Figure 4Since the opener hook 302 has a certain curvature, the first connecting member 101 and the second connecting member 201 can limit the hook 302 from escaping from the working groove 103 through extrusion, so that the first connecting member 101 and the second connecting member 201 fix the opener as a whole through the hook 302, and the hook 302 can be stably connected to the opener fixing device such as the bracket 401 through the opener connecting device, thereby avoiding the situation where the opener is disconnected from the opener fixing device.

[0038] The first connecting member 101 and the second connecting member 201 can be made of conventional medical consumable materials. When in use, it is only necessary to insert the hook 302 into the working groove 103, and then shorten the distance between the first extrusion surface 102 and the second extrusion surface 202. During this process, the doctor only needs to touch the first connecting member 101 and the second connecting member 201, as well as the mouth opener. After one use, the first connecting member 101 and the second connecting member 201 are discarded to meet the sterile requirements of medical operations.

[0039] In one embodiment of the present application, the first extrusion surface 102 and the second extrusion surface 202 are provided with an elastic layer, and the elastic layer enables the first connecting member 101 and the second connecting member 201 to fit more closely to the hook 302 , thereby enhancing the fixing effect on the hook 302 .

[0040] See also Figure 1 The mouth opener hook 302 is connected with a connecting plate 301 and a tongue depressor 303 .

[0041] In one embodiment of the present application, the first connecting member 101 is provided with a first component 105, and the second connecting member 201 is provided with a second component 203. When the first connecting member 101 and the second connecting member 201 are close to each other, the first component 105 and the second component 203 form a connecting plate channel 204 that allows the connecting plate 301 to pass through, see Figure 3 , the connecting plate channel 204 can limit the movement of the connecting plate 301. Those skilled in the art of the present application can understand that there are many ways to form the connecting plate channel 204 in the present application, such as the first connecting plate 301 is provided with a groove allowing the connecting plate 301 to pass through, the second connecting plate 301 is provided with a groove, the groove provided by the first connecting plate 301 and the groove provided by the second connecting plate 301 together form the connecting plate channel 204, or only the first connecting plate 301 is provided with a groove, and the groove provided by the first connecting plate 301 forms the connecting plate channel 204, or only the second connecting plate 301 is provided with a groove, and the groove provided by the second connecting plate 301 forms the connecting plate channel 204. Of course, there are other structures to form the connecting plate channel 204, which will not be repeated here.

[0042] In one embodiment of the present application, one end of the working channel 104 is connected to the working groove 103 , and the other end is connected to the outside world. In the outside world, a component can be used to push the second extrusion surface 202 close to the first extrusion surface 102 through the working channel 104 .

[0043] Furthermore, the opening device connection device further comprises a push rod 501, which can extend into the working channel 104 along the first direction and push the second connecting member 201 close to the first extrusion surface 102. The side wall of the push rod 501 is provided with a push thread; the first connecting member 101 is provided with a matching threaded hole 106 which can be threadedly connected with the push thread, and the working channel 104 is connected to the outside world through the matching threaded hole 106. The push rod 501 can pass through the matching threaded hole 106 to enter the working channel 104 and push the second connecting member 201 in the working channel 104 close to the first extrusion surface 102. The push rod 501 can be connected to the bracket 401, see Figure 8 When it is needed, just connect the combination of the first connecting member 101 and the second connecting member 201 to the push rod 501. The sterility level of the push rod 501 can be lower than the sterility level of the first connecting member 101 and the second connecting member 201. The medical staff only touches the first connecting member 101, so that the first connecting member 101 rotates relative to the push rod 501, and the threaded connection is performed by matching the threaded hole 106 and the push rod 501 to rotate relative to each other. During this process, the doctor only needs to hold the first connecting member 101 to fix the opener to the bracket 401, and then operate the patient's head carried by the bearing part 601. There is no need to touch other parts, which reduces the risk of contamination of the opener.

[0044] See also Figures 5 to 7 In one embodiment of the present application, the first connecting member 101 includes a rotating portion 108 and a fixed portion 107. Along the first direction, the rotating portion 108 is connected to the fixed portion 107. The fixed portion 107 is provided with a working groove 103. The rotating portion 108 is provided with a matching threaded hole 106. The rotating portion 108 can rotate relative to the fixed portion 107 around the axis of the working channel 104. When the first connecting member 101 and the push rod 501 are threadedly connected, the fixed portion 107 can remain stationary, and the rotation of the rotating portion 108 enables the matching threaded hole 106 and the push rod 501 to rotate. 1, so that the first connecting member 101 and the pushing rod 501 are threadedly connected. Since the fixing portion 107 remains stationary, the working groove 103 set on the fixing portion 107 is prevented from driving the opener to rotate, so that the opener can always be kept in a suitable position. With the rotation of the rotating portion 108, the pushing rod 501 penetrates into the working channel 104, and pushes the second connecting member 201 in the working channel 104 close to the first extrusion surface 102, so that the first connecting member 101 and the second connecting member 201 can fix the hook 302 to fix the opener.

[0045] Further, in one embodiment of the present application, the cross section of the working channel 104 is non-circular; the push rod 501 includes a threaded section 503 provided with a push thread, and a push section 502 connected to the threaded section 503, and the cross section of the push section 502 is the same as the cross section of the working channel 104, see Figure 5 , Figure 7 The cross-section of the pushing section 502 is a square column. When the pushing section 502 enters the working channel 104, due to the cross-sectional shape of the pushing section 502, the pushing section 502 can limit the rotation of the working channel 104, thereby preventing the fixing portion 107 from rotating, and further preventing the opener from rotating around the axis of the mating threaded hole 106.

[0046] Furthermore, the length of the pushing section 502 is greater than the length of the mating threaded hole 106. When the pushing rod 501 enters the mating threaded hole 106, the pushing section 502 can enter the working channel 104, thereby preventing the fixing portion 107 from rotating around the axis of the mating threaded hole 106 when the pushing rod 501 enters the mating threaded hole 106.

[0047] In one embodiment of the present application, the cross-sectional shape of the outer wall of the rotating portion 108 is circular, so that medical personnel can more conveniently rotate the rotating portion 108.

[0048] It should be understood that although this specification is described according to various implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0049] The series of detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation scheme or changes that do not deviate from the technical spirit of the present application, such as combination, division or repetition of features, should be included in the scope of protection of the present application.

Claims

1. An opener connecting device, which is applied to a David's opener including a hook and a connecting plate, characterized in that: include: a first connecting member, wherein the first connecting member is provided with a working groove allowing the hook to enter, the groove wall of the working groove is provided with a working channel along a first direction, the working groove further comprises a first extrusion surface capable of fitting with the inner side of the hook, and the first extrusion surface is arranged opposite to the working channel; A second connecting piece arranged on the working channel can make a linear motion along the working channel. The second connecting piece is provided with a second extrusion surface. The second connecting piece can approach the first extrusion surface along the working channel. The first extrusion surface and the second extrusion surface work together to extrude and fix the hook of the opener.

2. An opener connection device according to claim 1, characterized in that: The first connecting member is provided with a first component part, and the second connecting member is provided with a second component part. When the first connecting member is close to the second connecting member, the first component part and the second component part form a connecting plate channel allowing the connecting plate to pass through, and the connecting plate channel can limit the movement of the connecting plate.

3. An opener connection device according to claim 1, characterized in that: One end of the working channel is communicated with the working groove, and the other end is communicated with the outside.

4. An opener connection device according to claim 3, characterized in that: The opener connecting device also includes a pushing rod, which can extend into the working channel along a first direction and push the second connecting member to approach the first extrusion surface.

5. An opener connection device according to claim 4, characterized in that: The side wall of the push rod is provided with a push thread; The first connecting member is provided with a mating threaded hole which can be threadedly connected with the pushing thread, the working channel is connected with the outside through the mating threaded hole, the pushing rod can pass through the mating threaded hole into the working channel, and push the second connecting member in the working channel to approach the first extrusion surface.

6. An opener connection device according to claim 5, characterized in that: The first connecting member includes a rotating part and a fixed part. Along the first direction, the rotating part is connected to the fixed part. The fixed part is provided with the working groove. The rotating part is provided with the matching threaded hole. The rotating part can rotate relative to the fixed part around the axis of the working channel.

7. An opener connection device according to claim 6, characterized in that: The cross section of the working channel is non-circular; The pushing rod comprises a threaded section provided with the pushing thread and a pushing section connected to the threaded section, and a cross section of the pushing section is the same as a cross section of the working channel.

8. An opener connecting device according to claim 7, characterized in that: The length of the pushing section is greater than the length of the matching threaded hole.

9. An opener connecting device according to claim 6, characterized in that: The cross-section shape of the outer wall of the rotating part is circular.

10. An opener connecting device according to claim 1, characterized in that: The first extrusion surface and the second extrusion surface are provided with an elastic layer.

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