Continuous dural suturing device for use under endoscope

Abstract

A continuous dural suturing device for use under an endoscope, the device comprising a suture base (1) and a suture head (2), wherein a controller (3) and a driving electric motor (4) are mounted in the suture base (1), and a first driving gear (5) and a second driving gear (6) are mounted on a power output shaft of the driving electric motor (4); a rotating drum (7) is provided at the front end of the suture base (1), the rotating drum (7) is in drivingly connected to the first driving gear (5) by means of a first driven gear (9) on a hollow rotating shaft (8), a mounting shaft (10) is provided inside the rotating drum (7), the mounting shaft (10) is drivingly connected to the second driving gear (6) by means of a second driven gear (11), and a thread hooking groove (19) is provided in the rotating drum (7); and the suture head (2) is inserted into an insertion port of the suture base (1), a dual-output-shaft electric motor (18) is mounted in the suture head (2), a power output shaft of the dual-output-shaft electric motor (18) is drivingly connected to a third driven gear (15) by means of a third driving gear (14), and an end face of the third driven gear (15) is connected to the upper end of a suture needle (16) by means of a connecting rod. The present invention overcomes the shortcomings of the prior art, and can achieve the operation effect of safely and efficiently suturing the dura mater under an endoscope, thereby reducing postoperative complications and the risks of mortality and disability in patients.

Description

A device for continuous dura suture under endoscope TECHNICAL FIELD

[0001] The present application relates to human life supplies, in particular to medical devices, and specifically to a device for continuous dura suture under endoscope. BACKGROUND

[0002] Various endoscopic surgeries in neurosurgery (endoscope for skull base, endoscope for spinal cord, endoscope for craniotomy) are a minimally invasive surgical method. However, like all neurosurgical procedures, endoscopic surgery still needs to open the dura mater or spinal cord to access the brain or spinal cord for subsequent surgical procedures, so there is a risk of dura mater, spinal cord and cerebrospinal fluid leakage after surgery, which can 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 all neurosurgical procedures, it is necessary to tightly suture or repair the dura mater. However, due to the extremely limited operating space of various neuroendoscopic procedures, it is not possible to tightly suture and repair the dura mater.

[0004] The existing technology for dura suture related to neuroendoscopic surgery, such as patent No. CN212118209U discloses a deep dura mater suture tool, mainly provides a hook line and pull line instrument for easy suture operation, but it is still a kind of instrument relying on manual needle and thread suture and knotting, which still cannot get rid of the limitations of existing manual operation technology. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a device for continuous dura suture under endoscope, which overcomes the shortcomings of the prior art, has a reasonable design, and can achieve safe and efficient suture operation of the dura under endoscope. Reduce the risk of postoperative complications and disability in patients.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme:

[0007] The utility model provides a kind of dura continuous suture device under endoscope, including suture seat and suture head, controller, drive motor and power supply for power are installed in the suture seat, the control port of drive motor is connected with the signal output end of controller, the power output shaft of drive motor is installed with first driving gear and second driving gear;The front end of suture seat is provided with installation notch, the rotating drum is movably connected in the installation notch, the bottom coaxial fixed connection of rotating drum is provided with hollow rotating shaft, the hollow rotating shaft is rotatably connected in suture seat by bearing, the first driven gear is coaxially fixedly installed on the outer surface of hollow rotating shaft, the first driven gear is transmission connection with first driving gear, the inside of rotating drum is provided with mounting shaft, the outer surface of mounting shaft is used to the coil of suture for the accompanying coil, the second driven gear is coaxially fixedly installed in the lower end of mounting shaft and passes through hollow rotating shaft, the second driven gear is transmission connection with second driving gear, the outer surface of mounting shaft is rotatably connected with the inner wall of hollow rotating shaft by bearing, the end face of rotating drum away from hollow rotating shaft is provided with line hooking groove;

[0008] The upper surface left side of the suture seat is provided with insertion port, the right side of the suture head is movably inserted into the insertion port, the right lower surface of the suture head is fixedly installed with first metal sheet, the insertion port in the suture seat is fixedly installed with second metal sheet, the second metal sheet is connected with the signal output end of controller by wire, the first metal sheet and the second metal sheet are matched with each other; A double-output-shaft motor is installed in the suture head, the control port of the double-output-shaft motor is connected with the first metal sheet by 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 connection with the third driven gear, the end face of the third driving gear is hinged with one end of a connecting rod through an eccentric shaft, the eccentric shaft is located at the position of the end face of the third driving gear deviating from the shaft center, the other end of the connecting rod is hinged with the upper end of the suture needle, a guide slot is formed in the lower part of the left side surface of the suture head, the suture needle passes through the guide slot and forms a linear sliding pair with the guide slot.

[0009] Preferably, the left side surface of the suture seat and the right side of the lower surface of the suture head are both provided with matching inclined surface structures.

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

[0011] Preferably, a guide groove is formed in the sidewall of the guide slot in the axial direction, 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 with the first driving gear through a first transmission belt, the second driven gear is connected with the second driving gear through a second transmission belt, and the first driven gear and the second driven gear have different numbers of teeth.

[0013] The application provides a dura mater continuous suturing device under endoscopy. The device has the following advantages: the suturing head is inserted into the insertion port at the end of the suturing seat, the suturing head cooperates with the suturing seat to clamp the dura mater, and the head end of the device is small, so that the device can be operated in a narrow space in endoscopic surgery. The suturing needle in the suturing head at the head end of the device cooperates with the rotating drum in the suturing seat to form a small mechanical suturing device, so that the dura mater under endoscopy can be safely and efficiently sutured. The device reduces the risk of postoperative complications and disability of patients. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the application or the prior art, the drawings needed in the prior art description will be briefly introduced below.

[0015] Fig. 1 is a structural schematic diagram of the application;

[0016] Fig. 2 is a partial structural schematic diagram of A in Fig. 1;

[0017] Fig. 3 is a structural schematic diagram of the suturing head in the application;

[0018] Fig. 4 is a structural schematic diagram of the rotating drum in the application;

[0019] Fig. 5 is a structural schematic diagram of the suturing needle penetrating through two layers of dura mater and forming a wire loop in the application;

[0020] Fig. 6 is a structural schematic diagram after one suturing is completed in the application;

[0021] Fig. 7 is a structural schematic diagram after continuous suturing in the application;

[0022] Explanation of reference numerals in the drawings:

[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, wire hooking groove; 20, auxiliary coil. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the present application will be clearly and completely described below with reference to the drawings in the present application.

[0025] In this embodiment, the number of teeth of the first driven gear 9 and the second driven gear 11 are different; the number of teeth of the first driven gear 9 and the second driven gear 11 are adjusted so that the installation shaft 10 and the rotating drum 7 can form a rotating speed of mutual cooperation.

[0026] The upper surface of the suture seat 1 is provided with an insertion port on the left side, and the right side of the suture head 2 is movably inserted into the insertion port. The right lower surface of the suture head 2 is fixedly provided with a first metal sheet 12, and the insertion port of the suture seat 1 is fixedly provided with a second metal sheet 13. 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. A double-output shaft motor 18 is installed in the suture head 2. The control port of the double-output shaft motor 18 is connected to the first metal sheet 12 through a wire. A third driving gear 14 is installed on one of the power output shafts of the double-output shaft motor 18. A third driven gear 15 is rotatably connected in the suture head 2. The third driving gear 14 is in transmission connection with the third driven gear 15. The end surface of the third driving gear 14 is hinged to one end of a connecting rod through an eccentric shaft. The eccentric shaft is located at a position deviating from the center of the end surface of the third driving gear 14. The other end of the connecting rod is hinged to the upper end of a suture needle 16. A guide slot hole is formed in the left side surface of the suture head 2. The suture needle 16 passes through the guide slot hole and forms a straight line sliding pair with the guide slot hole.

[0027] Working principle:

[0028] Before use, the suture coil is unpacked, which includes a coil 17 and an auxiliary coil 20, and the suture thread of the coil 17 and the auxiliary coil 20 is connected. The coil 17 is fixedly sleeved on the power output shaft of the double-output shaft motor 18, the auxiliary coil 20 is fixedly sleeved on the mounting shaft 10, and the suture thread between the coil 17 and the auxiliary coil 20 is passed through the needle 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 in contact with the two second metal sheets 13 in the insertion port of the suture seat 1 to realize the electrical conduction effect of the double-output shaft motor 18 in the suture head 2. At this time, after the installation is completed, the suture thread of the coil 17 and the auxiliary coil 20 is loose, so the controller 3 can be used to control the operation of the double-output shaft motor 18 and the driving motor 4, so as to drive the power output shaft of the double-output shaft motor 18 and the mounting shaft 10 to rotate respectively, so that the coil 17 and the auxiliary coil 20 rotate to tighten the suture thread to a suitable tension.

[0029] Then the suture head 2 can be deeply inserted into the endoscopic operation area, and through the cooperation of the suture head 2 and the suture seat 1, the state of clamping the two layers of dura mater is formed.

[0030] After the dura mater is clamped, the suture operation can be performed. At this time, the controller 3 is used to control the operation of the double-output shaft motor 18 and the driving motor 4, so that the third driving gear 14 on one power output shaft of the double-output shaft motor 18 is in transmission connection with the third driven gear 15, and the connecting rod is in transmission, so as to drive the suture needle 16 to move up and down, so that the suture needle 16 passes through the clamped two layers of dura mater to bring the suture thread below the two layers of dura mater, and forms a thread loop at the needle thread end of the suture needle 16, as shown in FIG. 5. At the same time, through the transmission connection between the first driving gear 5 on the power output shaft of the driving motor 4 and the first driven gear 9, the hollow rotating shaft 8 and the rotating cylinder 7 can be driven to rotate, and then through the hooking groove 19 on the upper surface of the rotating cylinder 7, the thread loop can be hooked and rotated one circle, so that the thread loop passes through the auxiliary coil 20 on the mounting shaft 10 to form a cross locking line. At the same time, through the rotation of the other power output shaft of the double-output shaft motor 18, the coil 17 is driven to rotate, and through the transmission connection between the second driving gear 6 on the power output shaft of the driving motor 4 and the second driven gear 11, the mounting shaft 10 and the auxiliary coil 20 sleeved on the outer surface thereof are driven to rotate, thereby realizing the action of paying out the suture thread. Then the suture needle 16 is lifted again to return to the original position, and at this time, one suture is formed, as shown in FIG. 6. Then the operator can move the dura mater clamped by the entire suture seat 1 and the suture head 2 by one needle pitch, and then the next suture cycle can be performed, and so on, so as to finally form the continuous suture effect in the form of a thread as shown in FIG. 7.

[0031] After use, the suturing head 2 can be directly disassembled, in this embodiment, the suturing head 2 and the coil 17 are both disposable consumables, and the suturing seat 1 is disinfected after each use.

[0032] In the present application, the suturing needle 16 and the double-output shaft motor 18 both adopt the prior art technical solutions, and those skilled in the art have already understood them, which will not be described here.

[0033] In embodiment two, as a further preferred solution of embodiment one, the left side surface of the suturing seat 1 and the right side surface of the lower surface of the suturing head 2 are both provided as mutually matched inclined surface structures. By being provided as inclined surface structures, the clamping work on the two layers of dura mater can be facilitated.

[0034] In embodiment three, as a further preferred solution of embodiment one, the suturing seat 1 is provided with a control button, and the signal output end of the control button is connected with the signal input end of the controller 3. This enables the operator to directly control the signal through the control button.

[0035] In embodiment four, as a further preferred solution of embodiment one, the side wall of the guide slot hole is provided with a guide groove in the axial direction, and the upper surface of the suturing needle 16 is provided with a limiting column which is movably connected in the guide groove. By setting the limiting column to slide in the guide groove, it can be ensured that the suturing 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 application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for endoscopic dural continuous suturing, characterized by: The utility model relates to a suture device, including suture seat (1) and suture head (2), the controller (3) is installed in suture seat (1) and drive motor (4) and power supply for power supply, the control port of drive motor (4) is connected with the signal output end of controller (3), and the power output shaft of drive motor (4) is installed with first driving gear (5) and second driving gear (6), the front end of suture seat (1) is seted up with the installation notch, and the movable joint of installation notch has rotary drum (7), and the coaxial fixed connection of rotary drum (7) bottom has hollow shaft (8), and hollow shaft (8) is rotatably connected in suture seat (1) through bearing, and the coaxial fixed mounting of hollow shaft (8) outer surface has first driven gear (9), and first driven gear (9) is transmission connection with first driving gear (5), and the inside of rotary drum (7) is provided with installation shaft (10), and the outer surface of installation shaft (10) is used for the coil (20) of the sleeve of suture, and installation shaft (10) lower end passes through hollow shaft (8) and is coaxially fixedly installed with second driven gear (11), and second driven gear (11) is transmission connection with second driving gear (6), and the outer surface of installation shaft (10) is rotatably connected with the inner wall of hollow shaft (8) through bearing, and the end face of rotary drum (7) away from hollow shaft (8) is provided with the line hooking groove (19) of hooking line, The upper surface left side of suture seat (1) is seted up with the insertion port, and the right side movable insertion of suture head (2) is in insertion port, and the right side lower surface of suture head (2) is fixedly installed with first metal sheet (12), and the insertion port in suture seat (1) is fixedly installed with second metal sheet (13), and second metal sheet (13) is connected with the signal output end of controller (3) through wire, and first metal sheet (12) and second metal sheet (13) are contacted with each other, and the inside of suture head (2) is installed with double output shaft motor (18), and the control port of double output shaft motor (18) is connected with first metal sheet (12) through wire, and one of the power output shaft of double output shaft motor (18) is installed with third driving gear (14), and the inside rotatably connected of suture head (2) has third driven gear (15), and third driving gear (14) is transmission connection with third driven gear (15), and the end face of third driving gear (14) is hinged with one end of a connecting rod through one eccentric shaft, and the eccentric shaft is located at the position of the end face of third driving gear (14) deviating from the axis, and the other end of connecting rod is hinged with the upper end of suture needle (16), and the lower surface of suture head (2) is seted up with guide slot hole, and suture needle (16) passes through guide slot hole and forms linear sliding pair with guide slot hole, and the other power output shaft of double output shaft motor (18) is used for the sleeve joint of suture coil (17).

2. A device for continuous suturing of dura under endoscope according to claim 1, characterized in that: The left side of suture seat (1) and the lower surface right side of suture head (2) are all set as the inclined surface structure of mutual cooperation.

3. A device for continuous suturing of dura under endoscope according to claim 1, characterized in that: The upper surface left side of suture seat (1) is seted up with the insertion port, and the right side movable insertion of suture head (2) is in insertion port, and the right side lower surface of suture head (2) is fixedly installed with first metal sheet (12), and the insertion port in suture seat (1) is fixedly installed with second metal sheet (13), and second metal sheet (13) is connected with the signal output end of controller (3) through wire, and first metal sheet (12) and second metal sheet (13) are contacted with each other, and the inside of suture head (2) is installed with double output shaft motor (18), and the control port of double output shaft motor (18) is connected with first metal sheet (12) through wire, and one of the power output shaft of double output shaft motor (18) is installed with third driving gear (14), and the inside rotatably connected of suture head (2) has third driven gear (15), and third driving gear (14) is transmission connection with third driven gear (15), and the end face of third driving gear (14) is hinged with one end of a connecting rod through one eccentric shaft, and the eccentric shaft is located at the position of the end face of third driving gear (14) deviating from the axis, and the other end of connecting rod is hinged with the upper end of suture needle (16), and the lower surface of suture head (2) is seted up with guide slot hole, and suture needle (16) passes through guide slot hole and forms linear sliding pair with guide slot hole, and the other power output shaft of double output shaft motor (18) is used for the sleeve joint of suture coil (17). The left side of suture seat (1) and the lower surface right side of suture head (2) are all set as the inclined surface structure of mutual cooperation. The upper surface left side of suture seat (1) is seted up with the insertion port, and the right side movable insertion of suture head (2) is in insertion port, and the right side lower surface of suture head (2) is fixedly installed with first metal sheet (12), and the insertion port in suture seat (1) is fixedly installed with second metal sheet (13), and second metal sheet (13) is connected with the signal output end of controller (3) through wire, and first metal sheet (12) and second metal sheet (13) are contacted with each other, and the inside of suture head (2) is installed with double output shaft motor (18), and the control port of double output shaft motor (18) is connected with first metal sheet (12) through wire, and one of the power output shaft of double output shaft motor (18) is installed with third driving gear (14), and the inside rotatably connected of suture head (2) has third driven gear (15), and third driving gear (14) is transmission connection with third driven gear (15), and the end face of third driving gear (14) is hinged with one end of a connecting rod through one eccentric shaft, and the eccentric shaft is located at the position of the end face of third driving gear (14) deviating from the axis, and the other end of connecting rod is hinged with the upper end of suture needle (16), and the lower surface of suture head (2) is seted up with guide slot hole, and suture needle (16) passes through guide slot hole and forms linear sliding pair with guide slot hole, and the other power output shaft of double output shaft motor (18) is used for the sleeve joint of suture coil (17). The left side of suture seat (1) and the lower surface right side of suture head (2) are all set as the inclined surface structure of mutual cooperation. The upper surface left side of suture seat (1) is seted up with the insertion port, and the right side movable insertion of suture head (2) is in insertion port, and the right side lower surface of suture head (2) is fixedly installed with first metal sheet (12), and the insertion port in suture seat (1) is fixedly installed with second metal sheet (13), and second metal sheet (13) is connected with the signal output end of controller (3) through wire, and first metal sheet (12) and second metal sheet (13) are contacted with each other, and the inside of suture head (2) is installed with double output shaft motor (18), and the control port of double output shaft motor (18) is connected with first metal sheet (12) through wire, and one of the power output shaft of double output shaft motor (18) is installed with third driving gear (14), and the inside rotatably connected of suture head (2) has third driven gear (15), and third driving gear (14) is transmission connection with third driven gear (15), and the end face of third driving gear (14) is hinged with one end of a connecting rod through one eccentric shaft, and the eccentric shaft is located at the position of the end face of third driving gear (14) deviating from the axis, and the other end of connecting rod is hinged with the upper end of suture needle (16), and the lower surface of suture head (2) is seted up with guide slot hole, and suture needle (16) passes through guide slot hole and forms linear sliding pair with guide slot hole, and the other power output shaft of double output shaft motor (18) is used for the sleeve joint of suture coil (17).

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

5. A device for continuous suturing of dura under endoscope according to claim 1, characterized in that: The first driven gear (9) is connected with the first driving gear (5) through a first transmission belt, the second driven gear (11) is connected with the second driving gear (6) through a second transmission belt, and the first driven gear (9) and the second driven gear (11) are different in the number of teeth.

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