Artificial ossicular implanting device

Abstract

The invention discloses an artificial ossicular implanting device which comprises a fixed forceps handle, a movable forceps handle, an outer tube and an ejector pin. The movable plier handle is hinged to the fixed plier handle, the outer pipe is installed at the head end of the fixed plier handle, the ejector pin penetrates through the outer pipe, the tail end of the ejector pin is connected to the head end of the movable plier handle, and handheld parts are arranged at the tail ends of the movable plier handle and the fixed plier handle; the ejector pin is driven to move in the outer pipe based on opening or retracting of the movable clamp handle; the head end of the outer tube is provided with a notch used for containing any grabbing hole of a disc of the artificial ossicular, and the movable clamp handle drives the ejector pin to stretch out and penetrate through any grabbing hole of the disc so that the artificial ossicular can be fixed to the head end of the outer tube. The artificial auditory ossicle implanting device only penetrates through one grabbing hole of the artificial auditory ossicle to clamp the artificial auditory ossicle, so that other grabbing holes (the grabbing holes serve as windows of a doctor in the operation process) are exposed, the operation view angle is not affected, and operation operation is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an artificial ossicle implant device. BACKGROUND

[0002] In the ossicular chain reconstruction surgery, the artificial ossicle (ossicular prosthesis) can be used as a very reliable artificial substitute to replace the damaged ossicular structure due to disease. As a result, the mechanical transmission mechanism between the periosteum and the stapes footplate will be repaired, achieving the function of restoring or improving the middle ear sound transmission system.

[0003] The existing patent 202311779326.4 discloses a device for assisting artificial ossicle implantation, as shown in Figure 1 As shown in (corresponding to Figure 11 of the existing patent 202311779326.4), the artificial ossicle 1 includes a working part 39 corresponding to the ear bone, which is arranged in an open bowl shape. The end of the working part 39 is fixedly connected with a disc 40 through a column 42, and the disc 40 is provided with a plurality of grabbing holes 41 for facilitating the grabbing of the claws 2; as shown in Figure 2 (corresponding to Figure 11 of the existing patent 202311779326.4 Figure 4 ) shown, during the operation, the claws 2 of the grabbing part are inserted into the grabbing holes 41, and then are tightened under the driving of the control part to stably hold the disc 40, and then the artificial ossicle 1 is grabbed; the artificial ossicle 1 is sent into the ear canal and is sent to the designated position by the grabbing part, so that the working part 39 is buckled on the ear bone of the patient; then the fingers pressing the control knob are relaxed, so that the transmission assembly rebounds to drive the claws 2 of the grabbing part to open, releasing the disc 40, and finally the claws 2 are withdrawn from the grabbing holes 41 and pulled out of the ear canal of the patient, completing the operation.

[0004] When the existing patent 202311779326.4 grabs the artificial ossicle, a plurality of claws 2 are inserted into the plurality of grabbing holes 41 of the disc 40 (the number of claws 2 is consistent with the number of grabbing holes 41), which completely blocks the view window (grabbing hole 41) of the artificial ossicle when grabbing the artificial ossicle, affecting the operation view angle, resulting in the need for multiple adjustments of the artificial ossicle during installation, prolonging the operation time, and affecting the accuracy of the fixation of the artificial ossicle. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application provides an artificial ossicle implant device.

[0006] The present application discloses an artificial ossicle implant device, comprising: a fixed pliers handle, a movable pliers handle, an outer tube and a thimble. The movable jaw is hingedly connected with the fixed jaw, the outer tube is mounted at the head end of the fixed jaw, the plunger is arranged in the outer tube and the tail end of the plunger is connected with the head end of the movable jaw, and the tail end of the movable jaw and the fixed jaw is provided with a hand holding part; based on the opening or retraction of the movable jaw, the plunger is driven to move in the outer tube; The head end of the outer tube is provided with a notch for placing any grabbing hole of the disc of the artificial ear bone, the movable jaw drives the plunger to extend and pass through any grabbing hole of the disc of the artificial ear bone, so as to fix the artificial ear bone at the head end of the outer tube.

[0007] As a further improvement of the present application, the head end of the movable jaw fixes the tail end of the plunger through the clamping part.

[0008] As a further improvement of the present application, the outer tube comprises a first fixed tube, a corrugated tube and a second fixed tube arranged in sequence from the head end to the tail end, and the corrugated tube can be deformed.

[0009] As a further improvement of the present application, the inner wall of the tail end of the first fixed tube is provided with a first annular protrusion, the outer wall of the plunger is provided with a second annular protrusion, the second annular protrusion is located on the head end side of the first annular protrusion, a spring is arranged between the first annular protrusion and the second annular protrusion, the spring is sleeved on the plunger and located in the first fixed tube; in the reset state of the spring, the movable jaw is in the retracted state, the plunger extends from the notch to pass through any grabbing hole of the disc of the artificial ear bone, so as to fix the artificial ear bone at the head end of the outer tube; when the movable jaw is opened outward relative to the fixed jaw, the spring is compressed, and the plunger is withdrawn from the notch.

[0010] As a further improvement of the present application, the head end of the first fixed tube is closed, and a notch is formed in the side wall close to the head end, the size of the first fixed tube and the angle of the notch are adapted to the size of any grabbing hole of the disc of the artificial ear bone, so that the grabbing hole can be placed in the notch, and the plunger can pass through the grabbing hole and abut against the closed head end of the first fixed tube.

[0011] As a further improvement of the present application, the plunger is an elastic plunger which can be deformed and reset.

[0012] Compared with the prior art, the present application has the following advantages: The artificial ear bone implanting device of the present application only passes through one grabbing hole of the artificial ear bone to clamp the artificial ear bone, so that other grabbing holes (the grabbing hole is used as a visual window during the operation of the doctor) are exposed, the visual angle during the operation is not affected, and the operation is facilitated. The outer tube head end of the application is provided with a notch, and cooperates with the retractable thimble to realize clamping of the artificial ear bones, the front end fixed gripping part is small and convenient to place on the stapes; The middle part of the outer tube is provided with a bellows, which can be deformed to change the angle position of the operation, and the elastic thimble inside can adapt to the deformation of the outer tube; The outer tube is provided with a spring, during installation, first open the movable clamp handle outward, retract the thimble, open the notch, then put in the artificial ear bone, loosen the movable clamp handle, under the spring reset, the thimble passes through a gripping hole of the artificial ear bone, and the clamping of the artificial ear bone is completed; the spring self-locking device can prevent the artificial ear bone from falling off during the operation (the auditory ossicles are generally 1-2 mm, and it is very difficult to find the falling off during the operation). BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic diagram of the existing artificial ear bone; Figure 2 It is a schematic diagram of the existing device assisting the implantation of the artificial ear bone; Figure 3 It is a perspective view of the artificial ear bone implantation device disclosed by the application; Figure 4 It is Figure 3 the enlarged view of A; Figure 5 It is Figure 3 the front view of B; Figure 6 It is Figure 3 the top view of B; Figure 7 It is Figure 6 the B-B sectional view of B; Figure 8 It is Figure 7 the enlarged view of C; Figure 9 It is Figure 7 the enlarged view of D.

[0014] SYMBOL EXPLANATION PRIOR ART 1, artificial ear bone; 2, claw tooth; 39, working part; 40, disc; 41, gripping hole; 42, column; THE INVENTION 10, fixed clamp handle; 11, movable clamp handle; 12, hinged shaft; 13, clamping part; 20, outer tube; 21, first fixed tube; 22, bellows; 23, second fixed tube; 24, first annular protrusion; 25, notch; 30, thimble; 31, second annular protrusion; 32, spring; 50, artificial ear bone; 51, working part; 52, disc; 53, gripping hole; 54, column. DETAILED DESCRIPTION

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] The present invention will now be described in further detail with reference to the accompanying drawings: like Figures 3-9 As shown, the present invention provides an artificial ossicle implantation device. The artificial ossicle 50 includes a working part 51 and a disc 52 connected by a column 54. The disc 52 has a plurality of grasping holes 53 evenly distributed on it. The working part 51 and the disc 52 of the artificial ossicle 50 are respectively placed on the periosteum and the stapes plate. The artificial ossicle implantation device includes: a fixed clamp handle 10, a movable clamp handle 11, an outer tube 20, and a thimble pin 30; wherein, The fixed clamp handle 10 and the movable clamp handle 11 are hinged together by a hinge shaft 12. That is, the movable clamp handle 11 can rotate relative to the fixed clamp handle 10 around the hinge shaft 12 to form a scissor-like operating mode. The tail end of the outer tube 20 is installed at the head end of the fixed clamp handle 10. The ejector pin 30 passes through the outer tube 20, and the head end of the movable clamp handle 11 is fixed to the tail end of the ejector pin 30 by the clamping part 13. The movable clamp handle 11 and the tail end of the fixed clamp handle 10 are provided with a hand-holding part. Based on the opening or retraction of the movable clamp handle 11, the ejector pin 30 is driven to move in the outer tube 20. That is, when the movable clamp handle 11 opens outward relative to the fixed clamp handle 10, the ejector pin 30 is driven to retract in the outer tube 20, that is, to move from the head end to the tail end of the outer tube 20. When the movable clamp handle 11 retracts inward relative to the fixed clamp handle 10, the ejector pin 30 is driven to advance in the outer tube 20, that is, to move from the tail end to the head end of the outer tube 20.

[0017] The outer tube 20 includes a first fixing tube 21, a corrugated tube 22, and a second fixing tube 23 arranged sequentially from the head end to the tail end. The tail end of the second fixing tube 23 is installed at the head end of the fixing clamp handle 10. Neither the first fixing tube 21 nor the second fixing tube 23 undergoes plastic deformation. The corrugated tube 22 connects the first fixing tube 21 and the second fixing tube 23 and can undergo plastic deformation. The head end of the first fixing tube 21 is closed, and a notch 25 is provided on the side wall near the head end. The size of the first fixing tube 21 and the angle of the notch are adapted to accommodate any of the grasping holes 53 of the disc 52 of the artificial ossicle 50, which can be placed at the notch. Figure 4As shown in the figure; the movable jaw handle 11 drives the ejector pin 30 to extend and pass through any one of the grabbing holes 53 of the disc 52 to top the closed head end of the first fixed tube 51, so as to fix the artificial ear bone 50 at the head end of the first fixed tube 21, and complete the clamping of the artificial ear bone 50. Further, the ejector pin 30 is an elastic ejector pin with reset after deformation, so as to adapt to the deformation of the bellows 22.

[0018] The tail inner wall of the first fixed tube 21 is provided with a first annular protrusion 24, and the outer wall of the ejector pin 30 is provided with a second annular protrusion 31, which is located at the head end side of the first annular protrusion 24, as shown in the figure. Figure 8 The first annular protrusion 24 and the second annular protrusion 31 are provided with a spring 32, which is sleeved on the ejector pin 30 and located in the first fixed tube 21; in the reset state of the spring 32, the movable jaw handle 11 is in the retracted state, and the ejector pin 30 extends from the gap to pass through any one of the grabbing holes 53 of the disc 52 to fix the artificial ear bone 50 at the head end of the first fixed tube 21; when the movable jaw handle 11 is opened outward relative to the fixed jaw handle 10, the spring 32 is compressed, and the ejector pin 30 is withdrawn from the gap 25. It should be noted that the plastic deformation of the bellows 22 by the doctor during the operation is also a simple deformation within a controllable range, rather than a complex deformation, for example, the coaxial first fixed tube and second fixed tube are plastically deformed to have an included angle of 160°, and the plastic deformation does not exceed the elastic deformation force of the ejector pin; the above plastic deformation does not affect the normal work of the ejector pin; the reason is that the ejector pin adopts an elastic ejector pin with certain elastic reset and strength, which can adapt to the plastic deformation of the bellows; at the same time, the spring is arranged in the first fixed tube 21, and the spring will not be deformed with the plastic deformation of the bellows, because the ejector pin and the spring can work normally.

[0019] The working principle of the present application is as follows: The movable jaw handle 11 is opened outward, the ejector pin 30 is retracted, and the gap 25 is opened, and then the artificial ear bone 50 is put in; the movable jaw handle 11 is loosened, the spring 32 is reset, the ejector pin 30 passes through the grabbing hole 53 of the artificial ear bone 50, and the clamping of the artificial ear bone is completed; after the operation is completed, the movable jaw handle 11 is opened outward, the ejector pin 30 is retracted, and the clamping of the artificial ear bone is released.

[0020] The advantages of the present application are as follows: The artificial ear bone implanting device of the present application only passes through one grabbing hole of the artificial ear bone to realize the clamping of the artificial ear bone, so that other grabbing holes (the grabbing hole serves as a window for the doctor during the operation) are exposed, which does not affect the operation view and is convenient for operation; The outer tube head end of the application is provided with a notch, and cooperates with the retractable thimble to realize clamping of the artificial auditory ossicle; the front end fixed gripping part is small and convenient to place on the stapes; The middle part of the outer tube of the application is provided with a bellows, which can be deformed to change the angle position of the operation, and the elastic thimble inside can adapt to the deformation of the outer tube. The artificial auditory ossicle can be prevented from falling off during the operation by the spring self-locking device (the auditory ossicle is generally 1-2 millimeters, and it is very difficult to find the falling off during the operation).

[0021] The above is only the preferred embodiment of the application and is not used to limit the application, and the application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An artificial ossicle implant device, characterized in that, include: Fixed pliers handle, movable pliers handle, outer tube, and ejector pin; The movable clamp handle is hinged to the fixed clamp handle. The outer tube is installed at the head end of the fixed clamp handle. The ejector pin passes through the outer tube and its tail end is connected to the head end of the movable clamp handle. The movable clamp handle and the tail end of the fixed clamp handle are provided with a hand grip. The opening or retraction of the movable clamp handle drives the ejector pin to move within the outer tube. The head end of the outer tube is provided with a notch for any of the grasping holes of the disc for placing the artificial ossicle. The movable pliers handle drives the pin to extend and pass through any of the grasping holes of the disc to fix the artificial ossicle at the head end of the outer tube.

2. The artificial ossicle implant device as described in claim 1, characterized in that, The head end of the movable clamp handle is fixed to the tail end of the ejector pin by a clamping part.

3. The artificial ossicle implant device as described in claim 1, characterized in that, The outer tube includes a first fixed tube, a corrugated tube, and a second fixed tube arranged sequentially from the head end to the tail end. The corrugated tube can be plastically deformed.

4. The artificial ossicle implant device as described in claim 3, characterized in that, The first fixed tube has a first annular protrusion on its inner wall at the tail end, and the ejector pin has a second annular protrusion on its outer wall. The second annular protrusion is located on one side of the head end of the first annular protrusion. A spring is provided between the first annular protrusion and the second annular protrusion. The spring is sleeved on the ejector pin and located inside the first fixed tube. When the spring is in the reset state, the movable clamp handle is in the retracted state, and the ejector pin extends out from the notch. When the movable clamp handle opens outward relative to the fixed clamp handle, the spring is compressed, and the ejector pin exits from the notch.

5. The artificial ossicle implant device as described in claim 3, characterized in that, The first fixing tube has a closed head end and a notch on the side wall near the head end. The size of the first fixing tube and the angle of the notch are used to adapt to any of the grasping holes of the artificial ossicle disc, which can be placed at the notch so that the pin can pass through the grasping hole and press against the closed head end of the first fixing tube.

6. The artificial ossicle implant device as described in claim 3, characterized in that, The ejector pin is an elastic ejector pin that can return to its original position after deformation.

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