A device for continuous suturing of dura mater under endoscopy

Abstract

A device for continuous suturing of dura mater under endoscopy comprises a suturing seat and a suturing head, wherein a controller and a driving motor are installed in the suturing seat, and a first driving gear and a second driving gear are installed on the power output shaft of the driving motor; a rotating drum is provided at the front end of the suturing seat, and the rotating drum is connected to the first driving gear through the first driven gear on the hollow rotating shaft, and a mounting shaft is provided inside the rotating drum, and the mounting shaft is connected to the second driving gear through the second driven gear, and a hooking line hooking groove is provided on the rotating drum; the suturing head is inserted into the insertion port of the suturing seat, and a double output shaft motor is installed in the suturing head, and the power output shaft of the double output shaft motor is connected to the third driven gear through the third driving gear, and the end face of the third driving gear is connected to the upper end of the suturing needle through a connecting rod. The present invention overcomes the shortcomings of the prior art and can achieve the operational effect of safely and efficiently suturing the dura mater under endoscopy. It reduces the risk of postoperative complications and death and disability of patients.

Description

Technical Field

[0001] The invention relates to human daily necessities, in particular to medical instruments, in particular to a dura mater continuous suturing device used under endoscopy. Background Art

[0002] Various endoscopic surgeries in neurosurgery (skull base endoscopy, spinal endoscopy, craniotomy endoscopy) are minimally invasive surgical methods. However, like all neurosurgery, endoscopic surgery still requires opening the dura mater or dura mater to enter the brain or spinal cord for subsequent surgical operations. Therefore, there is a risk of complications such as dura mater and dura mater cerebrospinal fluid leakage after surgery, which may cause serious consequences such as central nervous system infection in patients.

[0003] The dura mater is a tissue covering the surface of the brain and spinal cord, which protects the brain from external damage. Before the end of all neurosurgery operations, strict suturing or repairing of the dura mater is a necessary process. However, due to the extremely limited operating space of various neuroendoscopic surgeries, it is impossible to strictly suture or repair the dura mater.

[0004] The related instrument products for dura mater suturing in neuroendoscopic surgery in the prior art, such as a deep dura mater suturing tool disclosed in Patent No. CN212118209U, mainly provide a hook and pull device for suturing operation, but it is still a device that relies on manual suturing and knotting, and still cannot break away from the limitations of existing manual operation technology. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a device for continuous suturing of the dura mater under endoscopy, which overcomes the shortcomings of the prior art, has a reasonable design, and can achieve the effect of safely and efficiently suturing the dura mater under endoscopy, thereby reducing the risk of postoperative complications and death and disability of patients.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A dura mater continuous suturing device for endoscopy comprises a suturing seat and a suturing head, wherein a controller, a driving motor and a power supply for power supply are installed in the suturing seat, the control port of the driving motor is connected to the signal output end of the controller, and a first driving gear and a second driving gear are installed on the power output shaft of the driving motor; a mounting notch is provided at the front end of the suturing seat, a rotating drum is movably connected in the mounting notch, a hollow rotating shaft is coaxially fixedly connected to the bottom of the rotating drum, the hollow rotating shaft is rotatably connected in the suturing seat through a bearing, a first driven gear is coaxially fixedly installed on the outer surface of the hollow rotating shaft, the first driven gear is transmission-connected to the first driving gear, a mounting shaft is provided inside the rotating cylinder, the outer surface of the mounting shaft is used for the attached coil of the suture, the lower end of the mounting shaft passes through the hollow rotating shaft and is coaxially fixedly installed with a second driven gear, the second driven gear is transmission-connected to the second driving gear, the outer surface of the mounting shaft is rotationally connected to the inner wall of the hollow rotating shaft through a bearing, and a hooking groove is provided on the end surface of the rotating cylinder away from the hollow rotating shaft;

[0008] The upper surface of the suture seat is provided with an insertion port on the left side, the right side of the suture head is movably inserted in the insertion port, a first metal sheet is fixedly installed on the lower right surface of the suture head, a second metal sheet is fixedly installed in the insertion port of the suture seat, the second metal sheet is connected to the signal output end of the controller through a wire, and the first metal sheet is in contact with the second metal sheet; a double output shaft motor is installed in the suture head, the control port of the double output shaft motor is connected to the first metal sheet through a wire, a third driving gear is installed on one of the power output shafts of the double output shaft motor, a third driven gear is rotatably connected in the suture head, the third driving gear is transmission-connected with the third driven gear, the end face of the third driven gear is hinged to one end of a connecting rod through an eccentric shaft, the eccentric shaft is located at a position where the end face of the third driven gear deviates from the axis, the other end of the connecting rod is hinged to the upper end of the suture needle, a guide slot is provided below the left side of the suture head, the suture needle passes through the guide slot and forms a linear sliding pair with the guide slot; the other power output shaft of the double output shaft motor is used for sleeve connection of the suture coil.

[0009] Preferably, the left side surface of the suturing seat and the right side of the lower surface of the suturing head are both arranged as mutually matching inclined structures.

[0010] Preferably, a control button is provided on the suturing seat, and a signal output end of the control button is connected to a signal input end of the controller.

[0011] Preferably, a guide groove is provided on the side wall of the guide slot hole along the axial direction, and a limiting column is provided on the upper surface of the suture needle, and the limiting column is movably connected in the guide groove.

[0012] Preferably, the first driven gear is connected to the first driving gear via a first transmission belt, the second driven gear is connected to the second driving gear via a second transmission belt, and the first driven gear and the second driven gear have different numbers of teeth.

[0013] The present invention provides a continuous suturing device for dura mater under endoscopy. The device has the following beneficial effects: the suturing head is inserted into the insertion port at the end of the suturing seat, and the suturing head cooperates with the suturing seat to clamp the dura mater, and the head end of the entire device is small, so it can be operated in the narrow space of endoscopic surgery. The suturing needle inside the suturing head at the head end of the device cooperates with the rotating drum inside the suturing seat to form a small mechanical suturing device, so as to achieve the operational effect of safely and efficiently suturing the dura mater under endoscopy. The patient's postoperative complications and risk of death and disability are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings required for describing the prior art are briefly introduced below.

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the local structure at A in the middle;

[0017] Figure 3 It is a structural schematic diagram of the suture head in the present invention;

[0018] Figure 4 It is a structural schematic diagram of the rotary drum in the present invention;

[0019] Figure 5 It is a schematic diagram of the structure when the suture needle of the present invention passes through two layers of dura mater and forms a thread loop;

[0020] Figure 6 This is a schematic diagram of the structure after one suturing is completed in the present invention;

[0021] Figure 7 This is a schematic diagram of the structure after continuous suturing in the present invention;

[0022] Description of the numbers in the figure:

[0023] 1. Suturing seat; 2. Suturing head; 3. Controller; 4. Driving motor; 5. First driving gear; 6. Second driving gear; 7. Rotating drum; 8. Hollow rotating shaft; 9. First driven gear; 10. Mounting shaft; 11. Second driven gear; 12. First metal sheet; 13. Second metal sheet; 14. Third driving gear; 15. Third driven gear; 16. Suturing needle; 17. Coil; 18. Double output shaft motor; 19. Thread hooking groove; 20. Attached coil. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0025] Embodiment 1, as Figure 1-7 As shown, a dura mater continuous suturing device for endoscopy comprises a suturing seat 1 and a suturing head 2, wherein a controller 3, a driving motor 4 and a power supply for power supply are installed in the suturing seat 1, a control port of the driving motor 4 is connected to a signal output end of the controller 3, and a first driving gear 5 and a second driving gear 6 are installed on the power output shaft of the driving motor 4; a mounting notch is provided at the front end of the suturing seat 1, a rotating drum 7 is movably connected in the mounting notch, a hollow rotating shaft 8 is coaxially fixedly connected to the bottom of the rotating drum 7, the hollow rotating shaft 8 is rotatably connected in the suturing seat 1 through a bearing, a first driven gear 9 is coaxially fixedly installed on the outer surface of the hollow rotating shaft 8, and the first driven gear 9 is connected to the first driving gear 5 through a first transmission belt transmission. Then, a mounting shaft 10 is arranged inside the rotating drum 7, and the outer surface of the mounting shaft 10 is used for the attached coil 20 of the suture thread. The lower end of the mounting shaft 10 passes through the hollow rotating shaft 8 and is coaxially fixedly mounted with a second driven gear 11. The second driven gear 11 is connected to the second driving gear 6 through a second transmission belt transmission. The outer surface of the mounting shaft 10 is rotatably connected to the inner wall of the hollow rotating shaft 8 through a bearing. A hooking groove 19 is arranged on the end surface of the rotating drum 7 away from the hollow rotating shaft 8. In this embodiment, the number of teeth of the first driven gear 9 and the second driven gear 11 is different; by adjusting the number of meshing teeth of the first driven gear 9 and the second driven gear 11, the mounting shaft 10 and the rotating drum 7 can form a mutually coordinated rotation speed.

[0026] An insertion port is provided on the left side of the upper surface of the suturing seat 1, and the right side of the suturing head 2 is movably inserted into the insertion port. A first metal sheet 12 is fixedly installed on the right lower surface of the suturing head 2, and a second metal sheet 13 is fixedly installed in the insertion port of the suturing seat 1. The second metal sheet 13 is connected to the signal output end of the controller 3 through a wire, and the first metal sheet 12 is in contact with the second metal sheet 13 in coordination; a dual-output shaft motor 18 is installed in the suturing head 2, and the control port of the dual-output shaft motor 18 is connected to the first metal sheet 12 through a wire, and a second metal sheet 13 is installed on one of the power output shafts of the dual-output shaft motor 18. There are three driving gears 14, and a third driven gear 15 is rotatably connected inside the suture head 2. The third driving gear 14 is transmission-connected to the third driven gear 15. The end face of the third driven gear 15 is hinged to one end of a connecting rod through an eccentric shaft. The eccentric shaft is located at a position where the end face of the third driven gear 15 deviates from the axis. The other end of the connecting rod is hinged to the upper end of the suture needle 16. A guide slot is provided at the lower left side of the suture head 2. The suture needle 16 passes through the guide slot and forms a linear sliding pair with the guide slot; the other power output shaft of the dual output shaft motor 18 is used to sleeve the suture coil 17.

[0027] Working principle:

[0028] Before use, unpack the suture coil, which includes a coil 17 and an attached coil 20, and the ends of the suture threads of the coil 17 and the attached coil 20 are connected. The coil 17 is fixedly mounted on the power output shaft of the dual-output shaft motor 18, and the attached coil 20 is fixedly mounted on the mounting shaft 10, and the suture thread between the coil 17 and the attached coil 20 is passed through the needle and thread hole of the suture needle 16; then the suture head 2 is inserted into the insertion port on the left side of the upper surface of the suture seat 1. After the suture head 2 is inserted in place, the two first metal sheets 12 on the suture head 2 are matched and contacted with the two second metal sheets 13 in the insertion port of the suture seat 1, so as to achieve the electrical connection effect of the dual-output shaft motor 18 in the suture head 2. At this time, after the installation is completed, the sutures of the coil 17 and the attached coil 20 will be loose, so the controller 3 can be used to control the operation of the dual output shaft motor 18 and the drive motor 4, thereby respectively driving the power output shaft of the dual output shaft motor 18 and the installation shaft 10 to rotate, so that the coil 17 and the attached coil 20 rotate to tighten the sutures to a suitable tension.

[0029] Afterwards, the suture head 2 can be inserted into the endoscope operation area, and the suture head 2 cooperates with the suture seat 1 to clamp the two layers of dura mater.

[0030] After the dura mater is clamped, the suturing operation can be performed. At this time, the controller 3 is used to control the dual-output shaft motor 18 and the drive motor 4 to operate, so that the third driving gear 14 on a power output shaft of the dual-output shaft motor 18 can be connected to the third driven gear 15 through the transmission effect of the connecting rod, so that the suture needle 16 can be driven to move up and down, so that the suture needle 16 can pass through the clamped two layers of dura mater to bring the suture thread under the two layers of dura mater, and form a thread loop at the needle and thread head end of the suture needle 16, as shown in FIG. Figure 5 As shown. At the same time, through the transmission connection between the first driving gear 5 and the first driven gear 9 on the power output shaft of the driving motor 4, the hollow rotating shaft 8 and the rotating drum 7 can be driven to rotate, and then the wire hooking groove 19 on the upper surface of the rotating drum 7 can be used to hook the wire loop and rotate it one circle, so that the wire wraps around the attached coil 20 on the mounting shaft 10 to form a cross lock wire. And at the same time, through the rotation of the other power output shaft of the dual-output shaft motor 18, the coil 17 is driven to rotate, and through the transmission connection between the second driving gear 6 and the second driven gear 11 on the power output shaft of the driving motor 4, the mounting shaft 10 and the attached coil 20 mounted on its outer surface are driven to rotate, and then the thread release action of the suture is realized. After that, the suture needle 16 is lifted up and returned to its position, and a suture is formed at this time, as shown Figure 6 After that, the operator can move the dura mater clamped by the entire suture seat 1 and the suture head 2 by one needle distance, and then proceed to the next suture cycle, and so on, finally forming the following Figure 7 The continuous stitching effect of the shown alignment.

[0031] After use, the suture head 2 can be directly disassembled. In the present embodiment, the suture head 2 and the coil 7 are both disposable consumables, and the suture seat 1 is sterilized after each use.

[0032] In the present invention, the suture needle 16 and the dual-output shaft motor 18 both adopt the well-known technical solutions in the prior art, which are already understood by those skilled in the art and will not be described in detail here.

[0033] Embodiment 2, as a further preferred embodiment of embodiment 1, the left side of the suture seat 1 and the right side of the lower surface of the suture head 2 are both configured as mutually matching inclined structures. By configuring the inclined structures, it is convenient to clamp the two layers of dura mater.

[0034] Embodiment 3, as a further preferred solution of embodiment 1, a control button is provided on the suturing seat 1, and the signal output end of the control button is connected to the signal input end of the controller 3. The operator can directly perform signal control through the control button.

[0035] Embodiment 4, as a further preferred embodiment of embodiment 1, the side wall of the guide slot hole is provided with a guide slot in the axial direction, and a limiting column is provided on the upper surface of the suture needle 16, and the limiting column is movably connected in the guide slot. By setting the limiting column to slide in the guide slot, it is ensured that the suture needle 16 can move in a straight line up and down.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for continuous suturing of the dura mater under endoscopy, characterized in that: The invention comprises a suturing seat (1) and a suturing head (2); a controller (3), a driving motor (4) and a power supply for power supply are installed in the suturing seat (1); a control port of the driving motor (4) is connected to a signal output port of the controller (3); a first driving gear (5) and a second driving gear (6) are installed on a power output shaft of the driving motor (4); a mounting notch is provided at the front end of the suturing seat (1); a rotating drum (7) is movably connected in the mounting notch; a hollow rotating shaft (8) is coaxially fixedly connected to the bottom of the rotating drum (7); the hollow rotating shaft (8) is rotatably connected to the suturing seat (1) via a bearing; and the outer surface of the hollow rotating shaft (8) is coaxially fixedly connected to the bottom of the rotating drum (7); the hollow rotating shaft (8) is rotatably connected to the suturing seat (1) via a bearing; and the outer surface of the hollow rotating shaft (8) is coaxially fixedly connected to the bottom of the rotating drum (7); and the hollow rotating shaft (8) is coaxially fixedly connected to the suturing seat (1) via a bearing. A first driven gear (9) is fixedly mounted on the shaft, and the first driven gear (9) is drivingly connected to the first driving gear (5). A mounting shaft (10) is arranged inside the rotating drum (7), and the outer surface of the mounting shaft (10) is used to fit the attached coil (20) of the suture thread. The lower end of the mounting shaft (10) passes through the hollow rotating shaft (8) and is coaxially fixedly mounted with a second driven gear (11), and the second driven gear (11) is drivingly connected to the second driving gear (6). The outer surface of the mounting shaft (10) is rotatably connected to the inner wall of the hollow rotating shaft (8) via a bearing, and a thread hooking groove (19) is arranged on the end surface of the rotating drum (7) away from the hollow rotating shaft (8); An insertion opening is provided on the left side of the upper surface of the suturing seat (1), and the right side of the suturing head (2) is movably inserted into the insertion opening. A first metal sheet (12) is fixedly installed on the lower surface of the right side of the suturing head (2), and a second metal sheet (13) is fixedly installed in the insertion opening of the suturing seat (1). The second metal sheet (13) is connected to the signal output end of the controller (3) through a wire, and the first metal sheet (12) and the second metal sheet (13) are in contact with each other. A dual-output shaft motor (18) is installed in the suturing head (2), and the control port of the dual-output shaft motor (18) is connected to the first metal sheet (12) through a wire, and one of the power output shafts of the dual-output shaft motor (18) is connected to the first metal sheet (12) through a wire. A third driving gear (14) is mounted on the suture head (2), a third driven gear (15) is rotatably connected inside the suture head (2), the third driving gear (14) is transmission-connected to the third driven gear (15), the end face of the third driven gear (15) is hinged to one end of a connecting rod via an eccentric shaft, the eccentric shaft is located at a position where the end face of the third driven gear (15) deviates from the axis, the other end of the connecting rod is hinged to the upper end of a suture needle (16), a guide slot is provided at the lower left side of the suture head (2), the suture needle (16) passes through the guide slot and forms a linear sliding pair with the guide slot; the other power output shaft of the dual-output shaft motor (18) is used for sleeve connection of the suture thread coil (17).

2. The endoscopic dural continuous suturing device according to claim 1, characterized in that: The left side surface of the suturing seat (1) and the right side of the lower surface of the suturing head (2) are both arranged as mutually matching inclined surface structures.

3. The endoscopic dural continuous suturing device according to claim 1, characterized in that: The suturing seat (1) is provided with a control button, and a signal output end of the control button is connected to a signal input end of a controller.

4. The endoscopic dural continuous suturing device according to claim 1, characterized in that: A guide groove is provided on the side wall of the guide slot hole along the axial direction, and a limiting column is provided on the upper surface of the suture needle (16), and the limiting column is movably connected in the guide groove.

5. The endoscopic dural continuous suturing device according to claim 1, characterized in that: The first driven gear (9) is connected to the first driving gear (5) via a first transmission belt, and the second driven gear (11) is connected to the second driving gear (6) via a second transmission belt. The first driven gear (9) and the second driven gear (11) have different numbers of teeth.

Images