A clinical surgical wound retraction device

Abstract

The present invention provides a clinical surgical wound retraction device, comprising a frame, an air cushion is installed at the bottom of the frame, an adjustment platform is installed at the upper end of the frame, a screw is rotatably connected inside the adjustment platform, a movable block is limited and slidably provided inside the adjustment platform, a connecting rod is slidably connected inside the movable block, and a pneumatic suction plate is installed at the end of the connecting rod. The present invention can enable the wound retraction device to retract wounds of different lengths by providing a pneumatic suction plate, a mounting plate, a movable frame and an extended adjustment component, and in the process of retracting the middle part of the patient's wound, the edge parts at both ends of the wound can also be closed inward, thereby effectively dispersing the pulling force applied to the wound, avoiding local tissue tearing due to excessive stretching, thereby maintaining the integrity of the wound, and reducing the exposure of surrounding tissues, thereby reducing the risk of damage to surrounding tissues and preventing secondary damage.

Description

Technical Field

[0001] The present invention relates to the technical field of clinical surgical wound retraction, and specifically to a clinical surgical wound retraction device. Background Technique

[0002] A wound retractor is an important surgical instrument in clinical medicine and is widely used in surgical operations to keep the wound open. In general surgical clinical medicine, when performing laparotomy and subcutaneous tissue surgery on a patient, an incision needs to be made on the patient's skin to expose the part of the patient that needs treatment. After the incision is made on the patient, a wound will be formed. To ensure that the size of the wound is sufficient for surgical operation activities, a retractor or the like is needed to pull the wound area so that the organ to be surgically treated is exposed.

[0003] However, when the existing device retracts the wound, since the patient is in an anesthetized state, if the retraction amplitude is too large, it may cause secondary tearing of the edge part of the wound, thereby causing secondary damage to the patient's wound area. And because the parts of the patient that need treatment are different, the lengths of the incisions made are also different, and the existing device is not convenient for retracting wounds of different lengths, and other tools or the assistance of other medical staff may be needed when retracting the patient's wound. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a clinical surgical wound retraction device to solve the technical problems mentioned in the above background technique that when the existing device retracts the wound, if the retraction amplitude is too large, it may cause secondary tearing of the edge part of the wound, and at the same time, it is not convenient for retracting wounds of different lengths, and a solution significantly different from the prior art is provided.

[0005] To solve the above problems, the present invention provides the following technical solutions:

[0006] A clinical surgical wound retraction device includes a frame. An air cushion is installed at the bottom of the frame. An adjustment table is installed at the upper end of the frame. A lead screw is rotatably connected inside the adjustment table. A movable block is slidably limited inside the adjustment table. A connecting rod is slidably connected inside the movable block. A pneumatic suction cup is installed at the end of the connecting rod. An installation plate is installed at the upper end of the frame. A moving frame is slidably limited inside the installation plate. An expansion adjustment component is installed on the surface of the installation plate and at the top end of the frame. The expansion adjustment component can meet the retraction requirements of wounds of different lengths. A first electric push rod is installed on the inner wall of the bottom chute of the installation plate. The extending end of the first electric push rod is connected to the moving frame. A second electric push rod is arranged at the upper end of the frame. A chute is formed on the surface of the moving frame. A slider is slidably limited inside the chute;

[0007] A telescopic adjustment component is arranged at the end of the slider and one end of the connecting rod. The telescopic adjustment component can pull the wound open in an arc according to the length of the wound.

[0008] Optionally, the interior of the adjustment platform is divided into four groups of spaces, the number of the movable blocks is four, the two central groups of movable blocks are close to the inner side of the middle space of the adjustment platform, and the two outer groups of movable blocks are close to the inner side of the outer space of the adjustment platform.

[0009] Optionally, the extended adjustment assembly includes a trough table installed at the upper end of the frame, and also includes a first oil tank installed at the end of the adjustment table, a first piston rod is limitedly sliding inside the first oil tank, a moving table is limitedly sliding inside the trough table, a second oil tank is installed on the top of the moving table, a second piston rod is limitedly sliding inside the second oil tank, and a hose is connected between the first oil tank and the second oil tank.

[0010] Optionally, the number of the movable platforms is two groups, and they are symmetrically distributed inside the slot platform; the second electric push rod is installed at the side end of the slot platform, and the extended end of the second electric push rod passes through the slot platform and is connected to the movable platform.

[0011] Optionally, the telescopic adjustment assembly includes a first oil tube and a second oil tube arranged at the end of the slider, and also includes an extrusion block installed on the surface of the mounting plate, a third oil tube is provided for limiting sliding inside the first oil tube, a first block is elastically connected to the bottom of the third oil tube, a first pressure plate is elastically connected to the bottom of the right cavity of the first oil tube, and the upper end of the first pressure plate conflicts with the first block, a fifth piston rod and a sixth piston rod are provided for limiting sliding inside the second oil tube, the bottoms of the fifth piston rod and the sixth piston rod are elastically connected to the second block, a second pressure plate is elastically connected to the bottom of the internal cavity of the second oil tube, a block is installed at the bottom of the second pressure plate, and the upper end of the second pressure plate conflicts with the second block.

[0012] Optionally, the ends of the fourth piston rod and the fifth piston rod are both connected to the slider, and the first oil pipe and the second oil pipe are both two-way pipes.

[0013] Optionally, the internal cavity of the first oil pipe is divided into two groups of spaces, and the left space inside the first oil pipe is narrower and the right space is wider.

[0014] Optionally, a slope is provided on the surface of the extrusion block, and a rounded corner is provided on the bottom of the abutment block.

[0015] Optionally, a limit rod is installed at the bottom of each of the first oil pipe and the second oil pipe, and the limit rod slides within a sliding groove on the surface of the mounting plate.

[0016] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up the pneumatic suction plate, mounting plate, movable frame and expansion adjustment component, the wound retraction device can retract wounds of different lengths, and in the process of retracting the middle part of the patient's wound, the edge parts at both ends of the wound can also be closed inward, thereby effectively dispersing the pulling force applied to the wound, avoiding local tissue tearing due to excessive stretching, thereby maintaining the integrity of the wound, and reducing the exposure of surrounding tissues, thereby reducing the risk of damage to surrounding tissues and preventing secondary damage.

[0018] By setting the first electric push rod, the second electric push rod, the slider and the telescopic adjustment component, when the pneumatic adsorption plate is adjusted according to the size of the wound, the moving distance of each group of connecting rods can be adjusted according to the size of the wound by changing the oil ratio inside the first oil tube and the second oil tube, so that when the first electric push rod retracts the wound, the change in the moving distance between each group of connecting rods can make wounds of different lengths open in an arc, and the arc-shaped retraction method can more evenly disperse the force applied to the wound, reduce pressure and damage to surrounding tissues, and reduce the risk of complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0020] Figure 1 It is a schematic diagram of the working process of the device of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the lower end structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the explosion structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the expansion adjustment component of the present invention;

[0025] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 7 It is a schematic diagram of the structure of the adjustable telescopic component of the present invention;

[0027] Figure 8 for Figure 7 The enlarged structural diagram at B in the middle;

[0028] Fig. 9 It is a schematic diagram of the internal structure of the first oil pipe of the present invention;

[0029] Fig.10 It is a schematic diagram of the internal structure of the second oil pipe of the present invention.

[0030] [Reference Signs]

[0031] 1. Frame; 2. Air cushion; 3. Adjustment table; 4. Screw rod; 5. Movable block; 6. Connecting rod; 7. Pneumatic adsorption plate; 8. Mounting plate; 9. Mobile frame; 10. Extension adjustment assembly; 101. Slot table; 102. First oil tank; 103. First piston rod; 104. Mobile table; 105. Second oil tank; 106. Second piston rod; 11. First electric push rod; 12. Second electric push rod; 13. Sliding block; 14. Telescopic adjustment assembly; 141. First oil pipe; 142. Second oil pipe; 143. Extrusion block; 144. Third oil pipe; 145. First stopper; 146. Fourth piston rod; 147. First pressure plate; 148. Fifth piston rod; 149. Sixth piston rod; 1410. Second stopper; 1411. Second pressure plate; 1412. Stopper.

[0032] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0033] The following is a detailed description of a clinical surgical wound retraction device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0034] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0035] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0036] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0037] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0038] like Figures 1 to 10 As shown, an embodiment of the present invention provides a clinical surgical wound retraction device, including a frame 1, an air cushion 2 is installed at the bottom of the frame 1, an adjusting table 3 is installed at the upper end of the frame 1, a screw rod 4 is rotatably connected inside the adjusting table 3, a movable block 5 is limited and slidably connected inside the adjusting table 3, a connecting rod 6 is slidably connected inside the movable block 5, a pneumatic adsorption disk 7 is installed at the end of the connecting rod 6, a mounting plate 8 is installed at the upper end of the frame 1, a movable frame 9 is limited and slidably inside the mounting plate 8, an extended adjustment component 10 is installed on the surface of the mounting plate 8 and the top of the frame 1, the extended adjustment component 10 can adapt to the retraction requirements of wounds of different lengths, a first electric push rod 11 is installed on the inner wall of the slide groove at the bottom of the mounting plate 8, the protruding end of the first electric push rod 11 is connected to the movable frame 9, a second electric push rod 12 is arranged on the upper end of the frame 1, a slide groove is opened on the surface of the movable frame 9, and a slider 13 is limited and slidably inside the slide groove.

[0039] The telescopic adjustment component 14 is arranged at the end of the slider 13 and one end of the connecting rod 6. The telescopic adjustment component 14 can open the wound in an arc according to the length of the wound.

[0040] During use, since the patient is in an anesthetized state, if the retraction amplitude is too large, the edge of the wound may be torn for the second time, thereby causing secondary damage to the wound site of the patient, and since the site that needs to be treated is different for the patient, the length of the wound is also different. This embodiment of the present invention can solve the above problems. The specific implementation method is as follows. When the patient's wound is retracted, the frame 1 is first placed around the wound, and then the air cushion 2 is fitted to the patient's skin. Then, the motor drives the screw 4 to rotate, so that the movable block 5 drives the connecting rod 6 to move, thereby expanding the range of the pneumatic adsorption plate 7. While the connecting rod 6 moves, the first piston rod 103 is squeezed to inject the oil in the first oil tank 102 into the second oil tank 105, so that the second piston rod 106 drives the pneumatic adsorption plate 7 to move outward, so that its internal range can adapt to the length of the wound, and then the pneumatic adsorption plate 7 is used to adsorb the skin around the wound.

[0041] like Figures 2 to 4 As shown, the interior of the adjusting platform 3 is divided into four groups of spaces, and the number of movable blocks 5 is four. The two central groups of movable blocks 5 are close to the inner side of the middle space of the adjusting platform 3, and the two outer groups of movable blocks 5 are close to the inner side of the outer space of the adjusting platform 3. The opening of the four groups of spaces inside the adjusting platform 3 can make each group of movable blocks 5 move synchronously in different spaces, and the screw rod 4 in the adjusting platform 3 is a bidirectional screw rod 4. When the screw rod 4 rotates, the movable blocks 5 will move to both sides, so that the wound retraction device can adapt to the use requirements of wounds of different lengths.

[0042] like Figures 2 to 7 As shown, the expansion adjustment component 10 includes a trough table 101 installed at the upper end of the frame 1, and also includes a first oil tank 102 installed at the end of the adjustment platform 3. A first piston rod 103 is slidingly limited inside the first oil tank 102, and a moving platform 104 is slidingly limited inside the trough table 101. A second oil tank 105 is installed on the top of the moving platform 104, and a second piston rod 106 is slidingly limited inside the second oil tank 105. A hose is connected between the first oil tank 102 and the second oil tank 105. When the pneumatic suction plates 7 at the left and right ends of the frame 1 move outward, the pneumatic suction plates 7 at the upper and lower ends of the frame 1 will expand outward to adapt to wounds of different lengths.

[0043] There are two groups of movable platforms 104, which are symmetrically distributed inside the slot platform 101; the second electric push rod 12 is installed at the side end of the slot platform 101, and the protruding end of the second electric push rod 12 passes through the slot platform 101 and is connected to the movable platform 104. When the first electric push rod 11 retracts the wound, the second electric push rod 12 will drive the pneumatic suction plates 7 at the upper and lower ends to close the edge of the wound inward.

[0044] like Figure 4 , Figures 6 to 10As shown, the telescopic adjustment assembly 14 includes a first oil pipe 141 and a second oil pipe 142 arranged at the end of the slider 13, and also includes an extrusion block 143 installed on the surface of the mounting plate 8. A third oil pipe 144 is limited and slidable inside the first oil pipe 141, and a first stopper 145 is elastically connected to the bottom of the third oil pipe 144. A first pressure plate 147 is elastically connected to the bottom of the right cavity of the first oil pipe 141, and the upper end of the first pressure plate 147 conflicts with the first stopper 145. A fifth piston rod 148 and a sixth piston rod 149 are limited and slidable inside the second oil pipe 142, and the bottoms of the fifth piston rod 148 and the sixth piston rod 149 are elastically connected. A second stopper 1410 is elastically connected to the bottom of the internal cavity of the second oil tube 142, and a stopper 1412 is installed at the bottom of the second pressure plate 1411. The upper end of the second pressure plate 1411 is in conflict with the second stopper 1410. When the pneumatic suction plate 7 is adjusted according to the size of the wound, the moving distance of each group of connecting rods 6 can be adjusted according to the size of the wound by changing the ratio of the oil in the first oil tube 141 and the second oil tube 142. When the first electric push rod 11 is used to pull the wound open, the change in the moving distance between each group of connecting rods 6 can enable wounds of different lengths to open in an arc.

[0045] The ends of the fourth piston rod 146 and the fifth piston rod 148 are both connected to the slider 13, and the first oil pipe 141 and the second oil pipe 142 are both two-way pipes. The opening of the two-way pipe can drive the third oil pipe 144 and the sixth piston rod 149 to move when the fourth piston rod 146 and the fifth piston rod 148 move, thereby driving the connecting rod 6 to retract the wound area.

[0046] The internal cavity of the first oil tube 141 is divided into two groups of spaces. The left space inside the first oil tube 141 is narrower and the right space is wider. The two groups of spaces of different sizes change the moving distance of the third oil tube 144 and the sixth piston rod 149 when the fourth piston rod 146 and the fifth piston rod 148 move, thereby pulling the wound open in an arc shape.

[0047] The surface of the extrusion block 143 is provided with an inclined surface, and the bottom of the stop block 1412 is provided with a rounded corner; the inclined surface at the bottom of the extrusion block 143 can facilitate the extrusion of the second pressure plate 1411, thereby changing the oil ratio inside the first oil pipe 141 and the second oil pipe 142.

[0048] Limiting rods are installed at the bottom of the first oil pipe 141 and the second oil pipe 142. The limiting rods slide in the sliding groove on the surface of the mounting plate 8 to prevent the first oil pipe 141 and the second oil pipe 142 from moving with the slider 13 when the first electric push rod 11 pushes the movable frame 9 to move outward.

[0049] like Figures 1 to 6As shown, the controller sends a first control information to drive the motor to drive the screw 4 to rotate, thereby adjusting the opening range of the pneumatic suction cup. Then the controller sends a second control information to drive the pneumatic adsorption disk 7 to work. At this time, the controller sends a third control information to drive the first electric push rod 11 and the second electric push rod 12 to work synchronously, thereby retracting the wound.

[0050] The working process of the technical solution provided by the present invention is as follows:

[0051] When the patient's wound is retracted, the frame 1 is first placed around the wound, and then the air cushion 2 is attached to the patient's skin. The motor then drives the screw 4 to rotate, so that the movable block 5 drives the connecting rod 6 to move, thereby expanding the range of the pneumatic suction plate 7. While the connecting rod 6 moves, the first piston rod 103 is squeezed to inject the oil inside the first oil tank 102 into the second oil tank 105, so that the second piston rod 106 drives the pneumatic suction plate 7 to move outward, so that its internal range can adapt to the length of the wound, and then the pneumatic suction plate 7 is used to absorb the skin around the wound.

[0052] When the movable block 5 moves inside the adjusting table 3, the first oil pipe 141 and the second oil pipe 142 will also move synchronously. When the second oil pipe 142 moves, the extrusion block 143 on the surface of the mounting plate 8 will squeeze the stop block 1412, so that the second pressure plate 1411 moves upward to press the second stop block 1410, thereby reducing the amount of oil in the second oil pipe 142. At this time, the oil in the second oil pipe 142 will enter the first oil pipe 141 through the hose. At this time, the oil will push the first pressure plate 147 to The first oil pipe 141 is squeezed downward to increase the amount of oil in the first oil pipe 141, and then the first electric push rod 11 is driven to drive the movable frame 9 to move backward. At this time, the slider 13 will drive the fourth piston rod 146 and the fifth piston rod 148 to move backward, and then drive the third oil pipe 144 and the sixth piston rod 149 to drive the connecting rod 6 to move so as to pull the wound part apart. The change of the oil in the first oil pipe 141 and the second oil pipe 142 will cause the distance between the third oil pipe 144 and the sixth piston rod 149 when they move synchronously to change.

[0053] When the first electric push rod 11 drives the mounting frame to move, the second electric push rod 12 will work synchronously. At this time, the second electric push rod 12 will drive the moving platform 104 to move inward in the groove platform 101, so as to close the edge of the wound.

[0054] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A clinical surgical wound retraction device, comprising a frame, characterized in that: An air cushion is installed at the bottom of the frame, an adjusting platform is installed at the upper end of the frame, a screw rod is rotatably connected inside the adjusting platform, a movable block is limited and slidable inside the adjusting platform, a connecting rod is slidably connected inside the movable block, a pneumatic adsorption disk is installed at the end of the connecting rod, a mounting plate is installed at the upper end of the frame, a movable frame is limited and slidable inside the mounting plate, an extension adjustment component is installed on the surface of the mounting plate and the top end of the frame, the extension adjustment component can adapt to the requirements of retraction of wounds of different lengths, a first electric push rod is installed on the inner wall of the slide groove at the bottom of the mounting plate, the extended end of the first electric push rod is connected to the movable frame, and a second electric push rod is arranged on the upper end of the frame; It also includes a telescopic adjustment component, which is arranged at the end of the slider and one end of the connecting rod, and the telescopic adjustment component can pull the wound open in an arc according to the length of the wound; The expansion adjustment assembly includes a trough table installed at the upper end of the frame, and also includes a first oil tank installed at the end of the adjustment table, a first piston rod is limitedly slidable inside the first oil tank, a moving table is limitedly slidable inside the trough table, a second oil tank is installed at the top of the moving table, a second piston rod is limitedly slidable inside the second oil tank, and a hose is connected between the first oil tank and the second oil tank; As the connecting rod moves, the first piston rod is squeezed to inject the oil inside the first oil tank into the second oil tank, so that the second piston rod drives the pneumatic suction plate to move outward so that its internal range can adapt to the length of the wound, and then the pneumatic suction plate is used to absorb the skin around the wound.

2. The clinical surgical wound retraction device according to claim 1, characterized in that: A sliding groove is provided on the surface of the movable frame, and a sliding block is provided inside the sliding groove for limited sliding.

3. The clinical surgical wound retraction device according to claim 1, characterized in that: The interior of the adjustment platform is divided into four groups of spaces. The number of movable blocks is four. The two central groups of movable blocks are close to the inner side of the middle space of the adjustment platform, and the two outer groups of movable blocks are close to the inner side of the outer space of the adjustment platform.

4. The clinical surgical wound retraction device according to claim 1, characterized in that: The number of the movable platforms is two, and they are symmetrically distributed inside the slot platform; the second electric push rod is installed at the side end of the slot platform, and the extended end of the second electric push rod passes through the slot platform and is connected to the movable platform.

5. The clinical surgical wound retraction device according to claim 1, characterized in that: The telescopic adjustment component includes a first oil tube and a second oil tube arranged at the end of the slider, and also includes an extrusion block installed on the surface of the mounting plate, a third oil tube is slidingly limited inside the first oil tube, a first block is elastically connected to the bottom of the third oil tube, a first pressure plate is elastically connected to the bottom of the right cavity of the first oil tube, and the upper end of the first pressure plate conflicts with the first block, a fifth piston rod and a sixth piston rod are slidingly limited inside the second oil tube, the bottoms of the fifth piston rod and the sixth piston rod are elastically connected to the second block, a second pressure plate is elastically connected to the bottom of the internal cavity of the second oil tube, a block is installed at the bottom of the second pressure plate, and the upper end of the second pressure plate conflicts with the second block.

6. The clinical surgical wound retraction device according to claim 5, characterized in that: The ends of the fourth piston rod and the fifth piston rod are both connected to the slider, and the first oil pipe and the second oil pipe are both two-way pipes.

7. The clinical surgical wound retraction device according to claim 5, characterized in that: The inner cavity of the first oil pipe is divided into two groups of spaces, and the left space inside the first oil pipe is smaller than the right space.

8. The clinical surgical wound retraction device according to claim 5, characterized in that: The surface of the extrusion block is provided with an inclined surface, and the bottom of the abutment block is provided with a rounded corner.

9. The clinical surgical wound retraction device according to claim 5, characterized in that: Limit rods are installed at the bottom of the first oil pipe and the second oil pipe, and the limit rods slide in a limited position in a sliding groove on the surface of the mounting plate.

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