Intra-airway suture forceps
The precise suturing of airway diseases can be achieved under endoscopy by using an intra-airway suture forceps, which solves the problems of weak suture and trauma caused by thoracotomy in the existing technology and achieves a minimally invasive and firm anatomical repair effect.
Patent Information
- Application Number
- CN202511288577.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2025-10-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing interventional devices cannot achieve permanent anatomical apposition of airway diseases, resulting in a high recurrence rate. Traditional thoracotomy is traumatic, causing pain to patients and a long recovery period. There is also a lack of precise endoscopic suturing devices for the airways.
An airway endosuture forceps was designed, which includes a handle, an external hose, a curved forceps head, a curved suture needle and other components. It can directly enter the airway with the assistance of an endoscope to achieve precise alignment and suturing of the suture line, and use sensors and locking devices to ensure the accuracy and stability of the suturing.
It achieves minimally invasive and firm anatomical repair in the airway, avoids the trauma of thoracotomy, shortens the recovery period, reduces complications, and alleviates the burden on patients.
Smart Images
Figure CN120770869A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a medical tool, in particular to an airway internal suturing forceps. BACKGROUND
[0002] With the development of respiratory intervention technology, many airway diseases can be treated by minimally invasive methods. However, for diseases such as tracheal rupture, tracheoesophageal fistula and postoperative recurrent fistula caused by trauma or postoperative complications, the existing intervention instruments such as occlusion balloon or covered stent can only temporarily close the fistula, and cannot realize permanent anatomical closure of the tissue, which is a temporary solution and has a high recurrence rate. At present, traditional open chest surgery is still widely used for fistula repair. This surgery requires cutting off the sternum and opening the trachea, which is extremely traumatic, causes significant pain to the patient, has a long postoperative recovery period, and is prone to anastomotic stenosis, infection and other serious complications, causing heavy physical and economic burden to the patient.
[0003] Especially for postoperative recurrent fistula, the local tissue is scarred and hard, and the second open chest surgery is difficult and risky, which is extremely difficult to handle clinically. The existing technology lacks a special instrument that can achieve precise suturing inside the airway, resulting in many patients having to bear the great risk of second open chest surgery.
[0004] Therefore, it is urgent to develop a special suturing instrument for endoscopy in the airway, which can bypass the open chest path, directly enter the trachea through the natural cavity, complete the precise closure and suturing of the fistula under the endoscope, realize minimally invasive and firm anatomical repair, and fundamentally avoid open chest surgery and its great trauma and sequelae. SUMMARY
[0005] The purpose of the present application is to solve the problems in the background art, and to provide an airway internal suturing forceps.
[0006] The airway internal suture forceps comprises a handle, an external hose, an arc-shaped forceps head, an arc-shaped suture needle, a push tube, a push tube driving block, a sliding rod, a sliding rod return spring, a connecting rod, a driving block and a spring sheet, the external hose is arranged at the front end of the handle, the arc-shaped forceps head is arranged at the end of the external hose away from the handle, the arc-shaped suture needle is slidably arranged in the arc-shaped forceps head, the arc-shaped suture needle is internally provided with a first pipe, the external hose is internally provided with symmetrical second pipes, the push tube is slidably arranged in the second pipe at the upper end of the external hose, the push tube is internally provided with a third pipe, the front end of the push tube is connected with the arc-shaped suture needle, the first pipe is communicated with the third pipe, the push tube driving block is slidably arranged in a sliding groove at the tail end of the external hose, the front end of the push tube driving block is connected with the tail end of the push tube, the sliding rod is slidably arranged in the handle, the front end of the sliding rod is connected with the tail of the push tube driving block, the sliding rod return spring is sleeved on the sliding rod, one end of the sliding rod return spring is abutted with the sliding rod, the other end of the sliding rod return spring is abutted with the handle, the driving block is rotationally connected with the handle, one end of the connecting rod is hinged with the sliding rod, the other end of the connecting rod is hinged with the top of the driving block, the spring sheet is arranged between the driving block and the handle, the fourth pipe is symmetrically arranged on the front end of the handle, and the fourth pipe is communicated with the second pipe.
[0007] The front end of the external hose is further provided with a guide seat, the front end opening of the guide seat corresponds with the needle head of the arc-shaped suture needle, the inner side wall of the guide seat is provided with a sensor, the handle is further provided with an indicator lamp and a controller, the sensor is connected with the controller through a signal line, the indicator lamp is connected with the controller through a wire, and the controller is integrated with a charging power supply.
[0008] The handle is further provided with a locking device, the locking device comprises a ratchet wheel, a pawl, a first return spring, a button and a second return spring, the ratchet wheel is arranged on one side of the rotating shaft of the driving block, the ratchet wheel rotates when the driving block is pinched, the pawl is slidably arranged on the handle, the first return spring is arranged between the tail of the pawl and the handle, the front end of the pawl is abutted with the ratchet teeth of the ratchet wheel, the middle part of the pawl is provided with a first inclined surface, the button is slidably arranged on the handle, the second return spring is arranged between the button and the handle, the bottom of the button is provided with a second inclined surface corresponding to the first inclined surface, and the second inclined surface is abutted with the first inclined surface.
[0009] The beneficial effects of the present application are as follows: The present application can bypass the thoracotomy path, directly enter the trachea through the natural cavity, complete the precise matching and suture of the fistula under the mirror, realize the minimally invasive and firm anatomical repair, fundamentally avoid the thoracotomy operation and the great trauma and sequelae caused by the thoracotomy operation, reduce the pain of patients, shorten the postoperative recovery week, avoid serious complications such as infection, reduce the physical and economic burden of patients, and are suitable for wide promotion and application. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is a three-dimensional schematic view of the present application; Figure 2is a plan view of the present application; Figure 3 is a plan view of the present application Figure 2 is a sectional view in A-A direction of the present application; Figure 4 is a plan view of the present application Figure 3 is an enlarged view at B of the present application; Figure 5 is an enlarged view at C of the present application Figure 3 Figure 6 is a schematic view of the locking device of the present application; Figure 7 is a plan view of the handle of the present application; Figure 8 is a sectional view in F-F direction of the present application; Figure 7 is a front view of the present application; Figure 9 is a sectional view in D-D direction of the present application; Figure 10 Figure 9 is an enlarged view at E of the present application; is a plan view of the present application in threading state; Figure 11 Figure 10 is a sectional view in G-G direction of the present application. DETAILED DESCRIPTION Figure 12 Please refer to Figure 13 Figure 12
[0011] Please refer to Figures 1 to 13 As shown, an intratracheal suture forceps comprises a handle 1, an external hose 2, an arc-shaped forceps head 3, an arc-shaped suture needle 4, a push tube 5, a push tube driving block 6, a sliding rod 7, a sliding rod return spring 8, a connecting rod 9, a driving block 10 and a spring piece 11. The external hose 2 is arranged at the front end of the handle 1, the arc-shaped forceps head 3 is arranged at the end of the external hose 2 away from the handle 1, the arc-shaped suture needle 4 is slidingly arranged inside the arc-shaped forceps head 3, the arc-shaped suture needle 4 is internally provided with a first pipe 401, the external hose 2 is internally provided with symmetrical second pipes 201, the push tube 5 is slidingly arranged in the second pipe 201 at the upper end of the external hose 2, the push tube 5 is internally provided with a third pipe 501, the front end of the push tube 5 is connected with the arc-shaped suture needle 4, the first pipe 401 is in communication with the third pipe 501, the push tube driving block 6 is slidingly arranged in a sliding groove 203 at the tail end of the external hose 2, the front end of the push tube driving block 6 is connected with the tail end of the push tube 5, the sliding rod 7 is slidingly arranged in the handle 1, the front end of the sliding rod 7 is connected with the tail end of the push tube driving block 6, the sliding rod return spring 8 is sleeved on the sliding rod 7, one end of the sliding rod return spring 8 is in abutment with the sliding rod 7, the other end of the sliding rod return spring 8 is in abutment with the handle 1, the driving block 10 is rotationally connected with the handle 1, one end of the connecting rod 9 is hingedly connected with the sliding rod 7, the other end of the connecting rod 9 is hingedly connected with the top of the driving block 10, the spring piece 11 is arranged between the driving block 10 and the handle 1, the fourth pipe 101 is symmetrically arranged on the front end of the handle 1, the fourth pipe 101 is in communication with the second pipe 201; Specifically, under the hard mirror, the arc-shaped forceps head 3 is sent into the airway through electronic bronchoscopy assistance, and then the external soft tube 2 is used to push the arc-shaped forceps head 3 to the place needing to be sutured. The arc-shaped forceps head 3 is adjusted to the required position through endoscopic observation, and the handle 1 is rotated to adjust the arc-shaped forceps head 3 through the external soft tube 2 to ensure that the two ends of the opening of the arc-shaped forceps head 3 cover the wound. The driving block 10 is pinched, the spring sheet 11 is compressed, the driving block 10 is rotated clockwise, the driving block 10 drives the sliding rod 7 to move forward through the connecting rod 9, the sliding rod reset spring 8 is compressed, the sliding rod 7 drives the push tube 5 to slide in the second pipeline 201 of the external soft tube 2, the push tube 5 is a flexible soft tube, the front end of the push tube 5 moves forward under the push of the push tube driving block 6 driven by the sliding rod 7, enters the arc-shaped forceps head 3, and further pushes the arc-shaped suture needle 4 in the arc-shaped forceps head 3 to slide along the arc-shaped forceps head 3 in an arc shape. The arc-shaped suture needle 4 penetrates the airway on both sides of the arc-shaped forceps head 3 and is connected with the second pipeline 201 at the lower part of the external soft tube 2. At this time, the fourth pipeline 101, the second pipeline 201, the third pipeline 501 and the first pipeline 401 are in communication. The suture line 13 is tied on the guide wire. The guide wire is first inserted along the upper fourth pipeline 101, passes through the upper second pipeline 201 into the third pipeline 501, enters the first pipeline 401, and then enters the lower second pipeline 201 from the first pipeline 401. Then the guide wire is pulled out from the fourth pipeline 101 along the path of the guide wire, and the end of the suture line 13 is pulled out from the fourth pipeline 101 along the path of the guide wire. At this time, the two ends of the suture line 13 are respectively outside the fourth pipeline 101 on the upper and lower sides. Then the driving block 10 is released, the driving block 10 is reset under the driving of the spring sheet 11, the sliding rod 7 is reset under the driving of the sliding rod reset spring 8, and then the sliding rod 7 drives the push tube driving block 6 and the push tube 5 to reset. The arc-shaped suture needle 4 is reset into the arc-shaped forceps head 3 under the driving of the push tube 5, and the suture line 13 is left on both sides of the suture site. Then the arc-shaped forceps head 3 and the external soft tube 2 are separated from the airway, the suture line 13 is left in the airway, and then the knot pusher is used to assist the doctor to knot the suture line 13. The excess suture line 13 is cut off, and the suture of one needle is completed. Then the above operation is repeated until the wound is sutured.
[0012] The lower part of the front end of the external soft tube 2 is further provided with a guide seat 202, the front end opening of the guide seat 202 corresponds to the needle head of the arc-shaped suture needle 4, the inner side wall of the guide seat 202 is provided with a sensor 2021, the handle 1 is further provided with an indicator light 13 and a controller 14, the sensor 2021 and the controller 14 are connected through a signal line, the indicator light 13 and the controller 14 are connected through a wire, and the controller 14 is integrated with a charging power supply; Specifically, the guide seat 202 can guide the needle head of the arc-shaped suture needle 4, helping the first pipe 401 on the arc-shaped suture needle 4 to better communicate with the second pipe 201 on the lower side of the external hose 2. When the arc-shaped suture needle 4 enters the guide seat 202, the arc-shaped suture needle 4 touches the sensor 2021 arranged on the inner wall of the guide seat 202. The sensor 2021 is a pressure sensor. The sensor 2021 detects the arc-shaped suture needle 4 and then sends a signal to the controller 14 through the signal line. After the controller 14 receives the signal, it powers on the indicator light 13, and the indicator light 13 lights up. The doctor observes that the indicator light 13 lights up and can determine that the arc-shaped suture needle 4 has reached the specified position, and can proceed to the next step of inserting the guide wire. When the arc-shaped suture needle 4 leaves the guide seat 202, the sensor 2021 cannot detect the arc-shaped suture needle 4, and then sends a signal to the controller 14 through the signal line. After receiving the signal, the controller 14 powers off the indicator light 13, and the indicator light 13 goes out. The handle 1 is also provided with a locking device 12, which includes a ratchet 121, a pawl 122, a first return spring 123, a button 124 and a second return spring 125. The ratchet 121 is provided on one side of the rotating shaft of the driving block 10. When the driving block 10 is pinched, the ratchet 121 also rotates accordingly. The pawl 122 is slidably provided on the handle 1, and a first return spring 123 is provided between the tail of the pawl 122 and the handle 1. The front end of the pawl 122 abuts against the ratchet teeth of the ratchet 121. A first inclined surface 1221 is provided on the middle part of the pawl 122, and the button 124 is slidably provided on the handle 1. A second return spring 125 is provided between the button 124 and the handle 1. A second inclined surface 1241 corresponding to the first inclined surface 1221 is provided at the bottom of the button 124, and the second inclined surface 1241 abuts against the first inclined surface 1221. Specifically, when the pinch drive block 10 is pinched, the drive block 10 drives the ratchet wheel 121 to rotate clockwise, and the pawl 122 has no effect on the ratchet wheel 121 when the ratchet wheel 121 rotates clockwise; when the first pipeline 401 of the arc-shaped suture needle 4 is in communication with the second pipeline 201 at the lower side of the external hose 2, the doctor can release the hand pinching the drive block 10, and the drive block 10 is driven by the spring sheet 11 to rotate counterclockwise, and the ratchet wheel 121 rotates counterclockwise; at this time, the pawl 122 is in abutment with the ratchet teeth of the ratchet wheel 121, preventing the ratchet wheel 121 from rotating counterclockwise, and further preventing the drive block 10 from resetting, so as to ensure that the first pipeline 401 of the arc-shaped suture needle 4 is still in communication with the second pipeline 201 at the lower side of the external hose 2 after the hand is released, facilitating the guide wire to guide the suture wire 13 to pass through each pipeline, and completing the threading operation; when the button 124 is pressed by hand, the button 124 is driven downward by the first inclined surface 1221 and the corresponding second inclined surface 1241, and the pawl 122 is driven to move away from the ratchet wheel 121; when the pawl 122 is disengaged from the ratchet wheel 121, the drive block 10 is restored to the original position under the driving of the spring sheet 11, and further drives the arc-shaped suture needle 4 to return to the original position; then the finger pressing the button 124 is released, the button 124 is restored to the original position under the action of the second reset spring 125, and the pawl 122 is restored to the original position under the action of the first reset spring 123, so as to be ready for next use.
[0013] Working principle and process of the present application: Please refer to Figures 1 to 13As shown, in use, under the hard mirror, the arc-shaped forceps head 3 is sent into the airway through electronic bronchoscopy assistance, and then the external soft tube 2 is used to push the arc-shaped forceps head 3 to the place where suture is needed. Through endoscopic observation, the handle 1 is rotated to adjust the arc-shaped forceps head 3 to the desired position through the external soft tube 2, and the two ends of the opening of the arc-shaped forceps head 3 are ensured to cover the wound. The driving block 10 is pinched to compress the spring sheet 11, and the driving block 10 is rotated clockwise, and the driving block 10 drives the sliding rod 7 to move forward through the connecting rod 9, and the sliding rod reset spring 8 is compressed. The sliding rod 7 pushes the push tube 5 to slide in the second pipeline 201 of the external soft tube 2. The push tube 5 is a flexible soft tube. The front end of the push tube 5 moves forward under the push of the push tube driving block 6 through the sliding rod 7, enters the arc-shaped forceps head 3, and further pushes the arc-shaped suture needle 4 in the arc-shaped forceps head 3 to slide along the arc-shaped forceps head 3 in an arc shape. When the arc-shaped suture needle 4 penetrates the airway on both sides of the arc-shaped forceps head 3 and enters the inside of the guide seat 202, the sensor 2021 arranged on the inner wall of the guide seat 202 detects the arc-shaped suture needle 4, and then sends a signal to the controller 14 through a signal line. After receiving the signal, the controller 14 electrifies the indicator light 13, and the indicator light 13 is lit. The doctor can determine that the arc-shaped suture needle 4 has reached the specified position and is connected with the second pipeline 201 at the lower part of the external soft tube 2 after observing that the indicator light 13 is lit. At this time, the fourth pipeline 101, the second pipeline 201, the third pipeline 501 and the first pipeline 401 are in communication. When the driving block 10 is pinched, the driving block 10 drives the ratchet wheel 121 to rotate clockwise. When the ratchet wheel 121 rotates clockwise, the pawl 122 has no effect on the ratchet wheel 121. When the first pipeline 401 of the arc-shaped suture needle 4 is connected with the second pipeline 201 at the lower side of the external soft tube 2, the doctor can release the hand pinching the driving block 10. The driving block 10 rotates counterclockwise under the drive of the spring sheet 11. The ratchet wheel 121 rotates counterclockwise. At this time, the pawl 122 abuts against the ratchet teeth of the ratchet wheel 121, preventing the ratchet wheel 121 from rotating counterclockwise, and further preventing the driving block 10 from resetting, so as to ensure that the first pipeline 401 of the arc-shaped suture needle 4 is still connected with the second pipeline 201 at the lower side of the external soft tube 2 after releasing the hand. The suture line 13 is tied on the guide wire. First, the guide wire is inserted along the fourth pipeline 101 at the upper side, passes through the second pipeline 201 at the upper side, enters the third pipeline 501, enters the first pipeline 401, and then enters the second pipeline 201 at the lower side from the first pipeline 401. Then the guide wire is pulled out through the fourth pipeline 101 along the path of the guide wire. At this time, the two ends of the suture line 13 are outside the fourth pipeline 101 at the upper side and the lower side, respectively. The button 124 is pressed by hand. Under the action of the first inclined surface 1221 and the corresponding second inclined surface 1241, the button 124 moves downward, driving the pawl 122 to move away from the ratchet wheel 121. When the pawl 122 is separated from the ratchet wheel 121, the driving block 10 returns to the original position under the drive of the spring sheet 11.The slide rod 7 is reset under the drive of the slide rod reset spring 8, and then the slide rod 7 drives the push tube driving block 6 and the push tube 5 to reset, the arc-shaped suture needle 4 is driven by the push tube 5 to return to the arc-shaped forceps head 3, then the finger pressing the button 124 is released, the button 124 is reset under the action of the second reset spring 125, the ratchet pawl 122 is reset under the action of the first reset spring 123, the suture line 13 is left on both sides of the suture, then the arc-shaped forceps head 3 is separated from the external hose 2, the suture line 13 is left in the airway, then the knot pusher is used to assist the doctor to knot the suture line 13, the excess suture line 13 is cut, and one needle suture is completed. Then the above operation is repeated until the wound is sutured.
Claims
1. An intra-tracheal suture forceps, characterized in that: The invention comprises a handle (1), an external hose (2), an arc-shaped pliers head (3), an arc-shaped suture needle (4), a push tube (5), a push tube drive block (6), a slide bar (7), a slide bar return spring (8), a connecting rod (9), a drive block (10) and a spring sheet (11), wherein the external hose (2) is arranged at the front end of the handle (1), the arc-shaped pliers head (3) is arranged at an end of the external hose (2) away from the handle (1), the arc-shaped suture needle (4) is slidably arranged inside the arc-shaped pliers head (3), a first pipe (401) is arranged inside the arc-shaped suture needle (4), a symmetrical second pipe (201) is arranged inside the external hose (2), the push tube (5) is slidably arranged in the second pipe (201) at the upper end of the external hose (2), a third pipe (501) is arranged inside the push tube (5), the front end of the push tube (5) is connected to the arc-shaped suture needle (4), the first pipe (401) and the third pipe (501) are connected to each other. 01) is connected, the push tube drive block (6) is slidably arranged in the slide groove (203) at the tail end of the external hose (2), the front end of the push tube drive block (6) is connected to the tail end of the push tube (5), the slide rod (7) is slidably arranged in the handle (1), the front end of the slide rod (7) is connected to the tail end of the push tube drive block (6), the slide rod return spring (8) is sleeved on the slide rod (7), one end of the slide rod return spring (8) is in contact with the slide rod (7), and the other end of the slide rod return spring (8) is in contact with the handle (1), the drive block (10) is rotatably connected to the handle (1), one end of the connecting rod (9) is hinged to the slide rod (7), and the other end of the connecting rod (9) is hinged to the top of the drive block (10), a spring sheet (11) is provided between the drive block (10) and the handle (1), and a fourth pipe (101) is symmetrically provided at the front end of the handle (1), and the fourth channel (101) is connected to the second pipe (201).
2. The endotracheal suturing forceps according to claim 1, characterized in that: A guide seat (202) is further provided at the lower front end of the external hose (2), the front end opening of the guide seat (202) corresponds to the needle head of the arc-shaped suture needle (4), a sensor (2021) is provided on the inner side wall of the guide seat (202), and an indicator light (13) and a controller (14) are further provided on the handle (1), the sensor (2021) and the controller (14) are connected via a signal line, the indicator light (13) and the controller (14) are connected via a wire, and a charging power supply is integrated in the controller (14).
3. The endotracheal suturing forceps according to claim 1, characterized in that: The handle (1) is also provided with a locking device (12), which includes a ratchet (121), a pawl (122), a first return spring (123), a button (124) and a second return spring (125). The ratchet (121) is provided on one side of the rotating shaft of the driving block (10). When the driving block (10) is pinched, the ratchet (121) also rotates. The pawl (122) is slidably provided on the handle (1). A first return spring is provided between the tail of the pawl (122) and the handle (1). (123), the front end of the pawl (122) abuts against the ratchet teeth of the ratchet (121), the middle of the pawl (122) is provided with a first inclined surface (1221), the button (124) is slidably provided on the handle (1), a second return spring (125) is provided between the button (124) and the handle (1), and the bottom of the button (124) is provided with a second inclined surface (1241) corresponding to the first inclined surface (1221), and the second inclined surface (1241) abuts against the first inclined surface (1221).