A manual delivery device for electrode implantation

Abstract

The present invention belongs to the technical field of cochlear implantation, and discloses a manual delivery device for electrode implantation, including a delivery clamp and a delivery catheter arranged on the delivery clamp, the delivery clamp including a driving clamp component and a follower clamp component; the driving clamp component and the follower clamp component are hinged together by a clamp pin, and a torsion spring is passed through the clamp pin; the driving clamp component cooperates with the follower clamp component to form a working part at the front end and an opening operation part at the rear end along the clamp pin. This scheme is used for a manual delivery device for electrode implantation, which changes the suspended insertion movement of the doctor when implanting the cochlear implant electrode into a finger rotation movement, and the implantation speed and force can be better controlled through the rotation movement, and the electrode implantation is smoother and more stable. The electrode implantation path and direction are controlled, and the problem that the electrode is not easy to bend during the delivery process is solved. In addition, the speed of electrode implantation is uniform and the operation is simple, which greatly reduces the experience requirements for the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of cochlear implantation, and more particularly to a manual delivery device for electrode implantation. Background Art

[0002] A cochlear implant, also known as an electronic cochlear implant, is a special sound-to-electric conversion device. Its working principle is to convert sound signals in the environment into electrical signals, and transmit the electrical signals to the patient's cochlea to stimulate the remaining auditory nerve in the cochlea, thereby producing hearing.

[0003] Electrode (see Appendix Figure 1 Component 1) Implantation is the most critical step in cochlear implant technology. During the electrode implantation process, gentle manipulation is required to maximize the protection of the fine structure of the inner ear and residual hearing. Therefore, the fine structure preservation technology of the inner ear during cochlear implantation is highly dependent on the operator's experience, physical strength and other factors, which has become a bottleneck restricting the further improvement of the overall efficacy of cochlear implantation.

[0004] In the prior art, the implantation of cochlear electrodes is generally done manually by doctors. First, local bone grinding is performed to open the channel. The cochlear electrode is manually picked up with tweezers and delivered to the entrance of the channel little by little. At present, the manual bone grinding wound of this method is relatively large, and the cochlear electrode is very small, which requires high micromanipulation ability of the doctor. The electrode is prone to bending during the manual delivery process, causing clinical "pain points" such as facial nerve damage, cochlear damage and poor consistency of surgical results. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a manual delivery device for electrode implantation.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A manual delivery device for electrode implantation, comprising a delivery clamp and a delivery catheter arranged on the delivery clamp, wherein the delivery clamp comprises a driving clamp component and a follower clamp component;

[0008] The driving clamp component and the follower clamp component are hinged together through a clamp pin, and a torsion spring is passed through the clamp pin;

[0009] The driving clamp component cooperates with the follower clamp component to form a working portion at the front end and an opening operation portion at the rear end along the clamp pin, and the torsion spring applies force to keep the working portions at the front ends of the driving clamp component and the follower clamp component closed;

[0010] The driving clamping component comprises a driving shell, a front end working portion of the driving shell is provided with a roller installation cavity 1, and an actively rotatable driving wheel is installed in the roller installation cavity 1;

[0011] The follower clamp component includes a follower shell, a front end working portion of the follower shell is provided with a second roller installation cavity, a follower wheel that can rotate freely and follow is installed in the second roller installation cavity, and the follower wheel is rotatably installed in the second roller installation cavity of the follower shell through a follower shaft;

[0012] The driving wheel and the follower wheel pair are clamped on both sides of the electrode of the cochlear implant to be implanted;

[0013] The delivery catheter is composed of two catheter sheets, which are respectively mounted on the driving shell and the follower shell, and the two catheter sheets are provided with catheter channels, and the driving clamp component and the follower clamp component are provided with electrode guide grooves, which are respectively connected to the catheter channels, and the catheter channels and the electrode guide grooves are both semicircular grooves;

[0014] The axis of the electrode guide groove on the driving clamping component is perpendicular to the axis of the driving wheel, and the axis of the electrode guide groove on the follower clamping component is perpendicular to the axis of the follower wheel;

[0015] When the driving shell and the follower shell are closed, the two catheter sheets are closed and the two electrode guide grooves are closed to form a columnar catheter for wrapping the electrode and guiding the movement of the electrode in the ear.

[0016] As a further solution of the present invention: a drive shaft mounting hole is provided at the front portion of the drive shell, a drive shaft is inserted in the drive shaft mounting hole, the drive shaft is located inside the roller mounting cavity and passes through the drive wheel and is connected to the drive wheel, drive bearings are provided on both sides of the drive wheel, the two drive bearings are respectively embedded in the roller mounting cavity, the drive shaft is respectively inserted into the two drive bearings and fixedly connected to their inner rings, and a rotating wheel is provided on the drive shaft located outside the drive shell.

[0017] As a further solution of the present invention: a fixing block is provided in the second roller installation cavity and below the follower wheel, the fixing block is fixedly installed on the follower housing by screws, and a through opening is opened on the fixing block corresponding to the follower wheel;

[0018] A lifting support block is provided in the second roller installation cavity and on both sides of the front and rear of the fixed block. The two lifting support blocks are fixedly connected with limit rods, and the two ends of the follower shaft are respectively sleeved on the two limit rods.

[0019] A lifting adjustment bolt is passed through the lifting support block, and an adjustment screw hole is opened in the follower shell corresponding to the lifting adjustment bolt. The lifting support block is installed on the follower shell through the lifting adjustment bolt and the adjustment screw hole.

[0020] A spring is sleeved on the limit rod, and the spring is located between the follower shaft and the top wall of the follower housing;

[0021] A clearance hole matched with the limiting rod is provided on the inner top wall of the follower housing, and the free end of the limiting rod extends into the clearance hole.

[0022] As a further solution of the present invention: the end of the catheter piece is provided with an installation limit portion, the drive shell and the follower shell are provided with an installation limit groove at the front working part, and the installation limit portion is interference fit with the installation limit groove.

[0023] As a further solution of the present invention: an adjustment channel is opened at the top of the follower shell, and an L-shaped fine-tuning rod is arranged in the channel. The lower end of the L-shaped fine-tuning rod extends to the top of the conveying conduit and corresponds to it. A fixing wire threadedly connected to the L-shaped fine-tuning rod is passed through the L-shaped fine-tuning rod, and the fixing wire is against the adjustment channel to fix the L-shaped fine-tuning rod to the follower shell.

[0024] As a further solution of the present invention: both sides of the inner wall of the adjustment channel are provided with limiting protrusions integrally formed therewith, and the surface of the L-shaped fine-tuning rod is provided with limiting grooves corresponding to the limiting protrusions, and the limiting protrusions extend into the limiting grooves;

[0025] A position indicating arrow is arranged on the surface of the L-shaped fine-adjusting rod, and a distance scale line is arranged on the surface of the follower housing close to the position indicating arrow.

[0026] As a further solution of the present invention: the driving clamp component is provided with a driving hinge ear at the rear, and the rear end of the driving clamp component forms a driving side operating part;

[0027] A follower hinge ear is provided at the rear of the follower clamp component, and the rear end of the follower clamp component forms a follower side operating part;

[0028] There are two driving hinged ears and two following hinged ears, for a total of four hinged ears;

[0029] Two hinged ears are located on the outside, and two hinged ears are located on the inside, and the inner sides of the two hinged ears located on the inside form a space for installing the torsion spring;

[0030] The clamp pin is fixed to the two driving hinged ears, and the clamp pin is hinged to the two follower hinged ears; or the clamp pin is hinged to the two driving hinged ears, and the clamp pin is fixed to the two follower hinged ears;

[0031] The spring body of the torsion spring is passed through the clamp pin, and the spring arm of the torsion spring is against the inner side of the driving side operating part and the following side operating part;

[0032] The two hinged ears hinged with the clamp pin are provided with hinged bearing holes, the hinged bearing holes are embedded with hinged bearings, the clamp pin is connected with the inner hole of the hinged bearing, and the clamp pin is hinged with the hinged ears through the hinged bearing.

[0033] As a further solution of the present invention: a plurality of anti-slip protrusions are provided on the outer surfaces of the driving side operating part and the following side operating part.

[0034] As a further solution of the present invention: a fixing hole is provided on the driving wheel, and the fixing hole penetrates from the outside to the inside to the shaft hole;

[0035] A top screw is arranged in the fixing hole; the top screw abuts against the driving shaft to fix the driving wheel and the driving shaft.

[0036] As a further solution of the present invention: a driving groove is provided on the driving wheel, and a following groove is provided on the following wheel;

[0037] When the driving clamping part and the following clamping part are closed together, part of the surface of the electrode falls into the driving groove and the following groove.

[0038] Compared with the prior art, the advantages of the present invention are:

[0039] This solution is a manual delivery device for electrode implantation. It changes the suspended insertion motion of the doctor when implanting the cochlear implant electrode into a finger rotation motion. The rotation motion can better control the implantation speed and force, making the electrode implantation smoother and more stable. The electrode implantation path and direction are controlled, solving the problem of the electrode being difficult to bend during the delivery process. The electrode implantation speed is uniform and the operation is simple, which greatly reduces the experience requirements for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of a manual delivery device for electrode implantation of the present invention in a use-ready state;

[0041] Figure 2 It is a schematic diagram of the overall structure of the manual conveying device of the present invention;

[0042] Figure 3 It is a schematic diagram of the structure of the delivery catheter of the present invention;

[0043] Figure 4 It is a structural schematic diagram of the driving clamp component of the present invention;

[0044] Figure 5 An exploded view of the driving clamp component of the present invention;

[0045] Figure 6 It is a structural schematic diagram of the follower clamp component of the present invention;

[0046] Figure 7 An exploded view of the follower clamp component of the present invention;

[0047] Figure 8 It is a structural schematic diagram of the lifting support block of the present invention;

[0048] Fig. 9 It is a structural schematic diagram of the L-shaped fine-tuning rod of the present invention;

[0049] Fig.10 It is a structural schematic diagram of the mounting seat of the present invention.

[0050] Description of the numbers in the figure:

[0051] 1. Cochlear implant; 11. Transducer; 12. Electrode;

[0052] 2. delivery catheter; 21. catheter sheet; 22. catheter channel; 23. installation limiter; 24. installation limiter groove;

[0053] 3. Conveying clamp; 31. Driving clamp component; 311. Driving shell; 3111. Mounting seat; 312. Driving wheel; 3121. Driving groove; 313. Driving shaft mounting hole; 314. Driving shaft; 315. Driving bearing; 316. Rotating wheel; 317. Driving hinge ear; 318. Top screw;

[0054] 32. Follower clamping component; 321. Follower housing; 322. Follower wheel; 3221. Follower groove; 323. Follower shaft; 324. Fixing block; 325. Through hole; 326. Lifting support block; 327. Limiting rod; 328. Lifting adjustment bolt; 329. Spring; 330. Clearance hole; 331. Follower hinge ear;

[0055] 33. Clip pin; 34. Torsion spring; 35. Articulated bearing; 36. Electrode guide groove; 37. Anti-slip protrusion;

[0056] 4. Adjustment channel; 41. Limiting convex; 42. Distance scale line; 5. L-shaped fine-tuning rod; 51. Limiting groove; 52. Position indication arrow; 6. Fixing wire. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0058] like Figure 1 As shown, it is a schematic diagram of the use preparation state of a manual delivery device for electrode implantation of the present invention. The driving clamp component 31 and the follower clamp component 32 of the delivery clamp 3 of the manual delivery device are relatively opened, so that the ground electrode 12 can be partially loaded into the delivery clamp 3, and the delivery catheter 2 is opened at the same time; then the electrode 12 of the cochlear implant 1 is loaded between the driving clamp component 31 and the follower clamp component 32, and passes through the delivery catheter 2 to wrap the electrode 12, and then the delivery clamp is closed to deliver the implant end of the electrode into the ear. The transducer 11 of the cochlear implant 1 is located on the outside.

[0059] like Figure 2 , 3As shown, a manual delivery device for electrode implantation includes a delivery clamp 3 and a delivery catheter 2 disposed on the delivery clamp 3. The specific structure of the delivery catheter 2 can be further seen in Figure 3 The delivery catheter 2 is composed of two catheter sheets 21, which are respectively mounted on the driving shell 311 and the follower shell 321. Both catheter sheets 21 are provided with catheter channels 22, and the ends of the catheter sheets 21 are provided with mounting limiters 23 for mounting the two catheter sheets 21 on the delivery clamp 3. The catheter channel 22 is in the shape of a semicircular groove. When the delivery clamp 3 is closed, the two catheter sheets 21 are closed to form a columnar catheter, which wraps the electrode 12 and guides the movement of the electrode 12 in the ear.

[0060] The main body of the conveying clamp 3 is in the shape of a clamp. The specific structure can be further referred to in Figure 2 , Figure 4-9 , including a driving clamping component 31 and a following clamping component 32, which are hinged together by a clamping pin 33, and a torsion spring 34 is inserted on the clamping pin 33; the driving clamping component 31 cooperates with the following clamping component 32 to form a working part at the front end and an opening operation part at the rear end along the clamping pin 33, the spring body of the torsion spring 34 is inserted on the clamping pin 33, and the spring arm of the torsion spring 34 is against the inner side of the opening operation part, always applying an outward force, so that the front end working part is always forced to close inward.

[0061] The manual conveying device is provided with an electrode guide groove 36 in the front end working part formed by the cooperation of the driving clamp component 31 and the follower clamp component 32. The electrode guide groove 36 on the driving clamp component 31 and the follower clamp component 32 is a semicircular groove. The electrode guide grooves 36 of the semicircular grooves on both sides are combined to form a circular groove for the electrode 12 to pass through, thereby forming an electrode conveying channel. An installation limit groove 24 is provided on the driving clamp component 31 and the follower clamp component 32 and located on one side of the electrode guide groove 36. The installation limit part 23 and the installation limit groove 24 are interference fit to position the conveying catheter 2 so that the electrode guide groove 36 is aligned with the catheter channel 22 for the electrode 12 to pass through.

[0062] On the outer surface of the opening operation part at the rear end formed by the cooperation of the driving clamp part 31 and the following clamp part 32, a plurality of anti-slip protrusions 37 are provided. Since this part is only used for opening by hand-pinching operation and is an invalid structural part, it needs to be designed as short as possible. Therefore, a plurality of anti-slip protrusions 37 can be provided to facilitate hand-pinching operation and prevent slipping.

[0063] The front end working parts of the driving clamp component 31 and the following clamp component 32 are respectively provided with conveying roller structures, which can be clamped on both sides of the electrode 12 to provide conveying friction force to the electrode 12 and implant the electrode 12 into the ear.

[0064] The specific structure of the driving clamping member 31 is as follows: Figure 4 , 5As shown, the driving clamp component 31 includes a driving shell 311, and a roller mounting cavity 1 is provided at the front working part of the driving shell 311, and an actively rotatable driving wheel 312 is installed in the roller mounting cavity 1. An opening is provided on the surface of the driving shell 311 corresponding to the driving wheel 312, and the opening divides the electrode guide groove 36 into two parts, left and right. A driving shaft mounting hole 313 is provided at the front part of the driving shell 311, and a driving shaft 314 is inserted in the driving shaft mounting hole 313. The driving shaft 314 is located in the roller mounting cavity 1 and passes through the driving wheel 312 and is connected to the driving wheel 312. The axis of the driving shaft 314 is perpendicular to the axis of the electrode guide groove 36. The driving shaft 314 is located outside the driving shell and is provided with a rotating wheel 316 for pinching and rotating by fingers. By rotating the rotating wheel 316, the driving shaft 314 can be rotated, thereby driving the driving wheel 312 to rotate. In order to improve the reliability and accuracy of the synchronous rotation of the driving wheel 312 and the driving shaft 314, the present invention has made the following improvements:

[0065] (1) A fixing hole is provided on the driving wheel 312, and the fixing hole penetrates from the outside to the inside to the shaft hole; a top screw 318 (or a Jimmy screw, a machine screw) is screwed in; as shown in the figure, two fixing holes are provided, and two top screws 318 are screwed in, and the top screws 318 are used to press against the driving shaft 314, so that the driving wheel 312 and the driving shaft 314 are completely fixed.

[0066] (2) A driving bearing 315 is provided on both sides of the driving wheel 312. The two driving bearings 315 are respectively embedded in the roller mounting cavity 1. The driving shaft 314 is respectively inserted into the two driving bearings 315 and fixedly connected to their inner rings, thereby achieving reliable installation and fixing, eliminating transmission errors, and eliminating the position error of the driving wheel 312 in the vertical direction.

[0067] The specific structure of the follower clamp component 32 is as follows: Figure 6 , 7 As shown in Figures 8 and 9, the follower clamp component 32 includes a follower shell 321, and the front end working part of the follower shell 321 is provided with a roller installation cavity 2, and a follower wheel 322 that can follow and rotate freely is installed in the roller installation cavity 2. The follower wheel 322 is rotatably installed in the roller installation cavity 2 of the follower shell 321 through a follower shaft 323. The follower shaft 323 and the follower wheel 322 have a transition fit or a clearance fit, so that the follower wheel 322 can rotate freely around the follower shaft 323. The axis of the electrode guide groove 36 on the follower clamp component 32 is perpendicular to the axis of the follower wheel 322.

[0068] Furthermore, a fixing block 324 is provided in the roller installation cavity 2 and below the follower wheel 322. The fixing block 324 is fixedly installed on the follower housing 321 by screws, and a through hole 325 is provided on the fixing block 324 corresponding to the follower wheel 322; a lifting support block 326 is provided in the roller installation cavity 2 and on both sides of the front and rear of the fixing block 324, and the two lifting support blocks 326 are fixedly connected to limit rods 327, and the two ends of the follower shaft 323 are respectively sleeved on the two limit rods 327; A lifting adjustment bolt 328 is inserted through the follower shell 321, and an adjustment screw hole is provided in the follower shell 321 corresponding to the lifting adjustment bolt 328. The lifting support block 326 is installed on the follower shell 321 through the lifting adjustment bolt 328 and the adjustment screw hole; a spring 329 is sleeved on the limit rod 327, and the spring 329 is located between the follower shaft 323 and the inner top wall of the follower shell 321. A clearance hole 330 adapted to the limiting rod 327 is provided on the inner top wall of the follower shell 321, and the free end of the limiting rod 327 extends into the clearance hole 330. By loosening or tightening the lifting adjustment bolt 328 to adjust the distance between the lifting support block 326 and the inner wall of the follower shell 321, and cooperating with the elastic force of the spring 329, the height of the roller installation cavity 2 of the follower wheel 322 can be adjusted up and down, thereby realizing the adjustment of the distance between the follower wheel 322 and the driving wheel 312, so as to meet the clamping and conveying of different types of electrodes 12.

[0069] In summary: the driving clamp component 31 and the follower clamp component 32 are installed together through the clamp pin 33 and the torsion spring 34 to form a clamp-like structure; by pinching the driving side operating part and the follower side operating part of the two, the front end working part can be opened to form an opening, which is convenient for loading the electrode 12;

[0070] Subsequently, the driving side operating part and the follower side operating part are released, and the torsion spring 34 applies force to close the working part, clamping the electrode 12 between the driving wheel 312 and the follower wheel 322, and the electrode guide groove 36 and the delivery catheter 2 play a guiding role in the process;

[0071] By rotating the rotating wheel 316, the driving wheel 312 can be driven to rotate, thereby rubbing the electrode 12 to move; and during the process, the follower wheel 322 always presses against the electrode 12 under the action of the torsion spring 34, so that the electrode 12 is always attached to the driving wheel 312, providing appropriate pressure and generating sufficient friction to achieve movement;

[0072] During operation, the delivery catheter 2 is inserted into the patient's ear canal, and the manual delivery device of the present invention is placed against the external auricle. The doctor can control the implantation speed and force of the electrode by slowly rotating the rotating wheel 316, which is more convenient for operation.

[0073] It should be emphasized that the ear canal depths of different patients are different, so the depths at which the delivery catheter 2 enters the patient's ear canal are different. In order to control the entry depth of the delivery catheter 2 and adapt to different groups of people, the present invention makes further improvements, specifically as follows: Fig. 9 , 10 As shown, an adjustment channel 4 is opened at the top of the follower shell 321, and an L-shaped fine-tuning rod 5 is arranged in the channel. The lower end of the L-shaped fine-tuning rod 5 extends to the top of the conveying conduit 2 and corresponds to it. A fixing wire 6 threadedly connected to the L-shaped fine-tuning rod 5 is passed through the L-shaped fine-tuning rod 5, and the fixing wire 6 is against the adjustment channel 4 to fix the L-shaped fine-tuning rod 5 and the follower shell 321.

[0074] By loosening the fixing wire 6, the position of the L-shaped fine-adjustment rod 5 on the adjustment channel 4 is adjusted, and then the length of the exposed part of the delivery tube 2 (that is, the depth that can enter the ear canal) is adjusted to achieve the length adjustment of the part of the delivery tube 2 that can enter the ear canal. After the position is determined, the fixing wire 6 is tightened to position the L-shaped fine-adjustment rod 5. When the manual delivery device is used, the side of the L-shaped fine-adjustment rod 5 located at the upper part of the delivery tube 2 is in a state of abutting against the patient's external auricle.

[0075] Furthermore, both sides of the inner wall of the adjustment channel 4 are provided with a limiting protrusion 41 integrally formed therewith, and a limiting groove 51 is provided on the surface of the L-shaped fine-tuning rod 5 corresponding to the limiting protrusion 41, and the limiting protrusion 41 extends to the inside of the limiting groove 51. The L-shaped fine-tuning rod 5 is limited and guided by the limiting groove 51 and the limiting protrusion 41, thereby increasing the stability of the L-shaped fine-tuning rod 5. In addition, a position indicating arrow 52 is provided on the surface of the L-shaped fine-tuning rod 5, and a distance scale line 42 is provided on the surface of the follower housing 321 near the position indicating arrow 52, ​​so as to facilitate observation of the scale position adjusted by the L-shaped fine-tuning rod 5.

[0076] In addition, if Fig.10 As shown, a mounting seat 3111 is further provided at the bottom of the driving shell 311, and a mounting hole is opened on the mounting seat 3111 for mounting the entire manual delivery device on the universal bracket. When the electrode implantation operation is performed, the manual delivery device is supported by the universal bracket to ensure the stability of the electrode implantation process and reduce the deviation caused by hand shaking or unstable operating environment. The universal bracket is flexible and can accurately control the position and direction of the manual delivery device in three-dimensional space.

[0077] like Figure 4-8As shown, a driving hinged ear 317 is provided at the rear of the driving clamp component 31, and the rear end of the driving clamp component 31 forms a driving side operating part; a follower hinged ear 331 is provided at the rear of the follower clamp component 32, and the rear end of the follower clamp component 32 forms a follower side operating part; there are two driving hinged ears 317 and two follower hinged ears 331, respectively, for a total of four hinged ears; two of the hinged ears are located on the outside, and two of the hinged ears are located on the inside, and the inner sides of the two hinged ears located on the inside form a space for installing a torsion spring 34; the clamp pin 33 is fixed to the two driving hinged ears 317, and the clamp pin 33 is hinged to the two follower hinged ears 331; or the clamp pin 33 is hinged to the two driving hinged ears 317, and the clamp pin 33 is fixed to the two follower hinged ears 331

[0078] The two hinged ears hinged to the clamp pin 33 are provided with hinged bearing holes, and the hinged bearing holes are embedded with hinged bearings 35. The clamp pin 33 is connected to the inner hole of the hinge bearing 35. The clamp pin 33 is hinged to the hinged ears through the hinge bearing 35, and the clearance at the hinged part is eliminated through the hinge bearing 35.

[0079] Furthermore, in order to increase the friction between the electrode 12 and the driving wheel 312 and the follower wheel 322, grooves are provided on the electrode delivery channel formed by the electrode guide groove 36 and the catheter channel 22 where the driving wheel 312 and the follower wheel 322 are located, namely, the driving groove 3121 and the follower groove 3221, so that when the driving clamping component 31 and the follower clamping component 32 are closed together, part of the surface of the electrode 12 falls into the driving groove 3121 and the follower groove 3221, thereby increasing the contact area with the driving wheel 312 and the follower wheel 322, thereby increasing the friction and avoiding slipping between the electrode and the driving wheel 312 or the follower wheel 322.

[0080] It should be noted that the driving clamp component 31 and the follower clamp component 32 are installed by means of a clamp pin 33 and a torsion spring 34, and the open ends are in a relatively free state; and the electrode 12 itself is not a cylinder of the same diameter, but an irregular body with a thin front end and a thick rear end. As the electrode 12 is implanted, the diameter of the electrode 12 entering between the driving wheel 312 and the follower wheel 322 will become thicker and thicker, thereby gradually separating the driving clamp component 31 and the follower clamp component 32. However, at this time, due to the action of the torsion spring 34, the driving wheel 312 and the follower wheel 322 can still maintain cooperation, clamp the electrode 12, and stably and reliably perform implantation and delivery.

[0081] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A manual delivery device for electrode implantation, characterized in that: It comprises a delivery clamp (3) and a delivery conduit (2) arranged on the delivery clamp (3), wherein the delivery clamp (3) comprises a driving clamp component (31) and a follower clamp component (32); The driving clamp component (31) and the follower clamp component (32) are hinged together via a clamp pin (33), and a torsion spring (34) is provided on the clamp pin (33); The driving clamp component (31) cooperates with the follower clamp component (32) to form a working portion at the front end and an opening operation portion at the rear end along the clamp pin (33), and the torsion spring (34) applies force to keep the working portions at the front ends of the driving clamp component (31) and the follower clamp component (32) closed; The driving clamp component (31) comprises a driving shell (311), a front end working portion of the driving shell (311) is provided with a roller installation cavity 1, and an actively rotatable driving wheel (312) is installed in the roller installation cavity 1; The follower clamp component (32) comprises a follower shell (321), a front end working portion of the follower shell (321) is provided with a second roller installation cavity, a follower wheel (322) which can follow and rotate freely is installed in the second roller installation cavity, and the follower wheel (322) is rotatably installed in the second roller installation cavity of the follower shell (321) via a follower shaft (323); The driving wheel (312) and the follower wheel (322) are clamped on both sides of the electrode of the cochlear implant to be implanted; The transport catheter (2) is composed of two catheter sheets (21), the two catheter sheets (21) are respectively mounted on a driving shell (311) and a follower shell (321), a catheter channel (22) is provided in each of the two catheter sheets (21), an electrode guide groove (36) is provided on each of the driving clamp component (31) and the follower clamp component (32), the two electrode guide grooves (36) are respectively connected to the catheter channel (22), and the catheter channel (22) and the electrode guide groove (36) are both semicircular grooves; The axis of the electrode guide groove (36) on the driving clamp component (31) is perpendicular to the axis of the driving wheel (312), and the axis of the electrode guide groove (36) on the follower clamp component (32) is perpendicular to the axis of the follower wheel (322); When the driving shell (311) and the follower shell (321) are closed, the two conduit sheets (21) are closed, and the two electrode guide grooves (36) are closed to form a columnar conduit for wrapping the electrode and guiding the movement of the electrode in the ear; An adjustment channel (4) is provided at the top of the follower housing (321), and an L-shaped fine-adjustment rod (5) is provided in the channel. The lower end of the L-shaped fine-adjustment rod (5) extends to the top of the delivery conduit (2) and corresponds thereto. A fixing wire (6) threadedly connected to the L-shaped fine-adjustment rod (5) is passed through the L-shaped fine-adjustment rod (5), and the fixing wire (6) abuts against the adjustment channel (4) to fix the L-shaped fine-adjustment rod (5) and the follower housing (321). Both sides of the inner wall of the adjustment channel (4) are provided with limiting protrusions (41) integrally formed therewith, and a limiting groove (51) is formed on the surface of the L-shaped fine-tuning rod (5) corresponding to the limiting protrusion (41), and the limiting protrusion (41) extends into the inside of the limiting groove (51); A position indicating arrow (52) is provided on the surface of the L-shaped fine-adjusting rod (5), and a distance scale line (42) is provided on the surface of the follower housing (321) close to the position indicating arrow (52).

2. A manual delivery device for electrode implantation according to claim 1, characterized in that: A drive shaft mounting hole (313) is provided at the front of the drive housing (311), a drive shaft (314) is inserted into the drive shaft mounting hole (313), the drive shaft (314) is located in the roller mounting cavity one, passes through the drive wheel (312) and is connected to the drive wheel (312), drive bearings (315) are provided on both sides of the drive wheel (312), the two drive bearings (315) are respectively embedded in the roller mounting cavity one, the drive shaft (314) respectively penetrates the two drive bearings (315) and is fixedly connected to the inner rings thereof, and a rotating wheel (316) is provided on the drive shaft (314) located outside the drive housing.

3. A manual delivery device for electrode implantation according to claim 1, characterized in that: A fixing block (324) is provided in the second roller installation cavity and below the follower wheel (322); the fixing block (324) is fixedly mounted on the follower housing (321) by means of screws; a through opening (325) is provided on the fixing block (324) corresponding to the follower wheel (322); A lifting support block (326) is provided in the second roller installation cavity and on both the front and rear sides of the fixed block (324); the two lifting support blocks (326) are fixedly connected to limit rods (327); and the two ends of the follower shaft (323) are respectively sleeved on the two limit rods (327); A lifting adjustment bolt (328) is provided on the lifting support block (326), and an adjustment screw hole corresponding to the lifting adjustment bolt (328) is provided in the follower housing (321), and the lifting support block (326) is mounted on the follower housing (321) via the lifting adjustment bolt (328) and the adjustment screw hole; A spring (329) is sleeved on the limiting rod (327), and the spring (329) is located between the follower shaft (323) and the inner top wall of the follower housing (321); A clearance hole (330) adapted to the limiting rod (327) is provided on the inner top wall of the follower housing (321), and a free end of the limiting rod (327) extends into the clearance hole (330).

4. A manual delivery device for electrode implantation according to claim 1, characterized in that: The end of the conduit piece (21) is provided with a mounting limit portion (23), and the drive housing (311) and the follower housing (321) are provided with a mounting limit groove (24) at the front end working portion, and the mounting limit portion (23) and the mounting limit groove (24) are interference fit.

5. A manual delivery device for electrode implantation according to claim 1, characterized in that: The driving clamp component (31) is provided with a driving hinge ear (317) at the rear, and the rear end of the driving clamp component (31) forms a driving side operating portion; A follower hinge ear (331) is provided at the rear of the follower clamp component (32), and the rear end of the follower clamp component (32) forms a follower side operating portion; There are two driving hinged ears (317) and two following hinged ears (331), for a total of four hinged ears; Two hinged ears are located on the outside, and two hinged ears are located on the inside, and the inner sides of the two hinged ears located on the inside form a space for installing a torsion spring (34); The clamp pin (33) is fixed to the two driving hinged ears (317), and the clamp pin (33) is hinged to the two follower hinged ears (331); or the clamp pin (33) is hinged to the two driving hinged ears (317), and the clamp pin (33) is fixed to the two follower hinged ears (331); The spring body of the torsion spring (34) is inserted into the clamp pin (33), and the spring arm of the torsion spring (34) abuts against the inner sides of the driving side operating part and the following side operating part; Two hinged ears hinged to the clamp pin (33) are provided with hinged bearing holes, hinged bearings (35) are embedded in the hinged bearing holes, the clamp pin (33) is connected to the inner hole of the hinged bearing (35), and the clamp pin (33) is hinged to the hinged ears through the hinged bearing (35).

6. A manual delivery device for electrode implantation according to claim 1, characterized in that: A plurality of anti-slip protrusions (37) are provided on the outer surfaces of the driving side operating part and the following side operating part.

7. A manual delivery device for electrode implantation according to claim 2, characterized in that: A fixing hole is provided on the driving wheel (312), and the fixing hole penetrates from the outside to the inside to the shaft hole; A top screw (318) is provided in the fixing hole; the top screw (318) abuts against the driving shaft (314) to fix the driving wheel (312) and the driving shaft (314).

8. A manual delivery device for electrode implantation according to claim 1, characterized in that: A driving groove (3121) is provided on the driving wheel (312), and a following groove (3221) is provided on the following wheel (322); When the driving clamping component (31) and the following clamping component (32) are brought together, part of the surface of the electrode falls into the driving groove (3121) and the following groove (3221).

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