Anastomosing device

Abstract

This invention provides a stapler, including a stapler cartridge, an anvil, a drive assembly, and a sensing assembly. The anvil is connected to the stapler cartridge. The drive assembly includes a drive member and a connecting block. The connecting block includes a first end and a second end disposed opposite to each other. The first end is movably connected to the movable end of the anvil, and the second end is drively connected to the drive member. The drive member drives the anvil to move closer to or away from the stapler cartridge via the connecting block. The sensing assembly is configured to detect the deformation of the anvil and includes a transmitter and a receiver connected by a signal connection. The transmitter is disposed on the side of the first end facing the anvil, and the receiver is disposed on the anvil and is used to receive the signal emitted by the transmitter. Compared with the prior art, the stapler of this invention can monitor the deformation of the anvil in real time through the sensing assembly.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to a stapler. Background Technology

[0002] In the field of surgical medicine, sleeve gastric anastomosis is an important treatment method widely used in the surgical treatment of diseases such as obesity and diabetes. However, traditional sleeve gastric anastomotic devices face a significant problem in their use: due to the relatively long anastomosis site, if the tissue to be cut is thick, this often has an adverse effect on the anastomosis outcome.

[0003] Specifically, a scientifically safe distance needs to be maintained between the anvil and the staple cartridge (placed inside the staple cartridge housing, containing staple holes and titanium staples) to avoid tissue damage due to compression. When the stapler is used to anastomose on long and thick tissues, the fit between the anvil and the staple cartridge housing often fails to achieve the ideal tightness. This can lead to problems such as leakage, bleeding, or poor healing of the anastomosed tissue, thus affecting the success rate of the surgery and the patient's postoperative recovery. In addition, due to differences in tissue thickness, the stapler may not be able to distribute pressure evenly when applying pressure, resulting in some tissues being overcompressed while other tissues are not adequately anastomosed.

[0004] In view of this, it is indeed necessary to improve the existing staplers in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an anastomosis device capable of detecting the thickness of cut tissue.

[0006] To achieve the above objectives, the present invention provides a stapler, comprising:

[0007] Nail bin seat;

[0008] The pin stop, which mates with the pin cartridge seat;

[0009] The drive assembly includes a drive element and a connecting block. The connecting block includes a first end and a second end that are disposed opposite to each other. The first end is movably connected to the movable end of the pin holder, and the second end is driven to the drive element. The drive element drives the pin holder to move closer to or away from the pin cartridge holder through the connecting block.

[0010] A sensing component configured to detect the deformation of the anchor seat includes a transmitter and a receiver connected by a signal connection, wherein the transmitter is disposed on the side of the first end facing the anchor seat, and the receiver is disposed on the anchor seat and is used to receive the signal emitted by the transmitter.

[0011] Optionally, during the movement of the anvil, the movable end and the first end move synchronously. When the transmitter and receiver are at the same height, the receiver can receive the signal emitted by the transmitter; when the height difference between the transmitter and receiver is greater than a predetermined difference, the receiver cannot receive the signal emitted by the transmitter.

[0012] Optionally, the anvil includes a top wall and a side wall extending from the top wall toward the staple cartridge, a receiver is disposed on the side of the top wall facing the staple cartridge, and a set of receivers is disposed on the top wall in the width direction of the anvil, the set of receivers including one or more receivers.

[0013] Optionally, the anvil includes a movable end connected to the connecting block and a connecting end disposed opposite to the movable end. A set of receiving elements is provided between the movable end and the connecting end, and the ratio of the distance between the receiving elements and the connecting end to the distance between the receiving elements and the movable end is greater than 1 and less than or equal to 2.5.

[0014] Optionally, the anchor includes a movable end connected to the connecting block and a connecting end disposed opposite to the movable end, with multiple sets of receivers spaced apart between the movable end and the connecting end.

[0015] Optionally, it also includes a control board that is signal-connected to the sensing component, and the control board is signal-connected or electrically connected to the drive component. When the control board detects that the receiver has received a signal from the transmitter, the control board controls the drive component to work; otherwise, the control board controls the drive component to not work.

[0016] Optionally, the movable end of the anvil is provided with a first slide groove, the first end of the connecting block is provided with a first rotating shaft, the connecting block is slidably connected to the first slide groove through the first rotating shaft, the staple cartridge seat is provided with a first slot corresponding to the position of the first slide groove, a pressure sensor is provided on the side of the first slot facing the first slide groove, the pressure sensor is signal connected to the control board and configured to detect the closing pressure of the anvil and the staple cartridge seat, when the closing pressure is less than a predetermined pressure value, the control board controls the drive component not to work.

[0017] Optionally, the staple cartridge seat is provided with a second slide groove, the second end of the connecting block is connected to the driving component for transmission, and is movably connected to the second slide groove through a second rotating shaft;

[0018] The driving component drives the second end to slide in the second groove along the first direction via the second rotating shaft, and drives the first end to slide in the first groove via the first rotating shaft. When the first rotating shaft reaches the end of the first groove, the second rotating shaft continues to slide, so as to drive the pin holder away from the pin cartridge holder.

[0019] The driving component drives the second end to slide in the second groove in the opposite direction to the first direction via the second rotating shaft, and drives the first end to slide in the first groove in the opposite direction via the first rotating shaft, so that the abutment seat approaches and abuts against the staple cartridge seat.

[0020] Optionally, a current detector connected to the control board via signal or electrical connection is also included. The current detector is configured to detect the current of the drive unit when the pin holder approaches and abuts against the pin cartridge holder. When the current is greater than a predetermined current value, the control unit controls the drive unit to stop working.

[0021] Optionally, an alarm may also be included, which sounds an alarm when the drive unit is not working.

[0022] Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:

[0023] The stapler of this invention uses a sensing component to monitor the deformation of the anvil in real time, thereby improving surgical outcomes. The transmitter is positioned on the side of the first end facing the anvil, and the receiver is positioned on the anvil. When the connecting block drives the anvil closer to the staple cartridge, if the receiver does not receive a signal from the transmitter, it indicates that the anvil may have deformed and is unsuitable for continuing the surgery. Medical personnel can then replace the stapler with a suitable one to ensure the best anastomosis results. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the anastomosis device according to a preferred embodiment of the present invention;

[0025] Figure 2 yes Figure 1 A cross-sectional view of the anastomosis device;

[0026] Figure 3 This is a schematic diagram of the anvil seat conforming to a preferred embodiment of the present invention;

[0027] Figure 4 yes Figure 2 Assembly drawing of the receiving component and the anvil;

[0028] Figure 5 This is a schematic diagram of the staple cartridge holder according to a preferred embodiment of the present invention;

[0029] Figure 6 yes Figure 2 Assembly drawing of the launcher and connecting block. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0032] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Please see Figures 1 to 6 As shown, an embodiment of the present invention provides a stapler 100, including an operating handle 1 and a barrel 2 fixedly connected to the operating handle 1. A drive assembly 3 and a control board 4 are installed inside the operating handle 1. An anvil 5, a staple cartridge seat 6, and a sensing assembly 7 are installed on the side of the barrel 2 away from the operating handle 1. The sensing assembly 7 is used to detect the deformation of the anvil 5. The sensing assembly 7 is signal-connected to the control board 4, and the control board 4 realizes intelligent control based on the information fed back by the sensing assembly 7. The anvil 5 and the staple cartridge seat 6 are connected in cooperation. The drive assembly 3 is used to drive the anvil 5 away from or towards the staple cartridge seat 6 to realize the opening and closing of the barrel 2.

[0034] The drive assembly 3 includes a drive element 31 and a connecting block 32. The connecting block 32 includes a first end 321 and a second end 322 disposed opposite to each other. The first end 321 is provided with a first rotating shaft 323, and the second end 322 is provided with a second rotating shaft 324. The first end 321 is movably connected to the movable end 53 of the anvil 5, and the second end 322 is drively connected to the drive element 31. The drive element 31 drives the anvil 5 to move closer to or away from the staple cartridge seat 6 via the connecting block 32.

[0035] Specifically, the driving component 31 includes a drive motor 311, a transmission component 312, and a driving arm 313. The drive motor 311 and the transmission component 312 are installed inside the operating handle 1, and part of the driving arm 313 is located inside the operating handle 1, while part is located inside the barrel 2. One end of the transmission component 312 is connected to the drive motor 311, and the other end is connected to the driving arm 313. The drive motor 311 drives the transmission component 312 to move, which in turn drives the driving arm 313 to move, causing the connecting block 32 to move.

[0036] In this embodiment, the transmission component 312 is a screw, and a nut is fitted onto the screw. In other embodiments, it may be other components with transmission functions, and this is not a limitation here.

[0037] Please see Figures 3 to 4 As shown, the anvil 5 includes a top wall 51, a side wall 52, a movable end 53, and a connecting end 54. The side wall 52 extends from the top wall 51 toward the staple cartridge 6. The movable end 53 is connected to the connecting block 32, and the connecting end 54 is disposed opposite to the movable end 53. The movable end 53 of the anvil 5 is provided with a first groove 55, and the connecting block 32 is slidably connected to the first groove 55 via a first rotating shaft 323.

[0038] Please combine Figures 2 to 5 As shown, the staple cartridge seat 6 is provided with a second sliding groove 63, which corresponds to the second rotating shaft 324 of the connecting block 32. The second end 322 of the connecting block 32 is connected to the driving member 31 and is movably connected to the second sliding groove 63 via the second rotating shaft 324. It can be understood that the drive motor 311 drives the screw to rotate, causing the nut to move on the screw, thereby driving the drive arm 313 to move linearly. The drive arm 313 drives the second end 322 to slide in the second sliding groove 63 along a first direction via the second rotating shaft 324, and drives the first end 321 to slide in the first sliding groove 55 via the first rotating shaft 323. When the first rotating shaft 323 reaches the end of the first sliding groove 55, the second rotating shaft 324 continues to slide, so as to drive the staple holder 5 away from the staple cartridge seat 6.

[0039] Similarly, the drive motor 311 rotates in the opposite direction, causing the drive arm 313 to drive the second end 322 to slide in the second slide groove 63 in the opposite direction to the first direction through the second rotating shaft 324, and causing the first end 321 to slide in the first slide groove 55 in the opposite direction through the first rotating shaft 323, so that the nail seat 5 approaches and abuts against the nail cartridge seat 6.

[0040] The staple cartridge holder 6 has a first slot 61 corresponding to the first slide groove 55. A pressure sensor 62 is located on the side of the first slot 61 facing the first slide groove 55. The pressure sensor 62 is connected to the control board 4 and is configured to detect the closing pressure of the staple holder 5 and the staple cartridge holder 6. When the staple cartridge holder 6 and the staple holder 5 are close together and the barrel 2 is closed, the first rotating shaft 323 abuts against the first slot 61 and applies pressure. The pressure sensor 62 detects the closing pressure at this time. When the closing pressure is greater than the predetermined pressure value, it indicates that the tissue is too thick, which may lead to incomplete closure or even damage to the staple holder 5. At this time, an abnormal signal is sent to the control board 4, and the control board 4 controls the drive component 31 to not work, ensuring the safety and reliability of the operation. When the closing pressure is less than the predetermined pressure value, it indicates that the staple cartridge holder 6 and the staple holder 5 can be tightly closed. At this time, a normal signal is sent to the control board 4, and the control board 4 controls the drive component 31 to work.

[0041] A cutting blade 8 is also provided between the anvil 5 and the staple cartridge 6. The cutting blade 8 is used to cut tissue. When the barrel 2 is closed, the cutting blade 8 moves to cut the tissue and pushes the staples (not shown) in the staple cartridge 6 to suture the tissue. The cutting blade 8 is prone to deformation due to resistance during its movement. If the tissue being cut is too thick, the cutting blade 8 will have difficulty cutting the tissue and will not be able to continue moving, which may cause the anvil 5 to be deformed by the tissue.

[0042] Please see Figures 2 to 6As shown, to detect the thickness of the cut tissue and ensure the anastomosis effect, a sensing component 7 is provided inside the barrel 2. In this embodiment, the sensing component 7 is a photoelectric thickness sensor, including a transmitter 71 and a receiver 72 connected by a signal connection. The driving component 31 is connected by a signal or electrical connection to the control board 4. Specifically, the transmitter 71 is disposed on the side of the top wall 51 facing the anvil 5, and the receiver 72 is disposed on the anvil 5 and is used to receive the signal emitted by the transmitter 71. During the movement of the anvil 5, the movable end 53 and the first end 321 move synchronously. When the transmitter 71 and the receiver 72 are at the same height, the receiver 72 can receive the signal emitted by the transmitter 71, and the control board 4 controls the driving component 31 to work. When the height difference between the transmitter 71 and the receiver 72 is greater than a predetermined difference value, the receiver 72 cannot receive the signal emitted by the transmitter 71. At this time, the anvil 5 may deform and is not suitable for continuing the operation. The control board 4 controls the driving component 31 to not work, avoiding surgical errors or equipment damage caused by excessive tissue thickness, and improving the accuracy and safety of the operation. By monitoring tissue thickness in real time and taking corresponding control measures, the deformation of the anvil seat 5 due to excessive force can be effectively avoided, thereby extending the service life of the medical device.

[0043] Furthermore, the stapler 100 is equipped with an alarm (not shown), which sounds when the drive unit 31 malfunctions. In other words, if the drive unit 31 stops working due to excessive tissue thickness or other reasons, the alarm will immediately sound, alerting medical staff. This instant feedback mechanism helps medical staff quickly identify and replace the appropriate stapler 100, thereby ensuring the anastomosis effect and enhancing the safety of the surgery.

[0044] The alarm can be directly installed on the control board 4 and triggered by abnormal signals received by the control board 4. When the sensing component 7 detects that the pin holder 5 may deform, or the pressure sensor 62 on the pin cartridge holder 6 detects abnormal pressure, or the current detector detects abnormal current in the drive component 3, the control board 4 will immediately send a signal to the alarm, causing it to emit a clear and loud alarm sound to alert medical staff and take appropriate measures.

[0045] In other embodiments, the alarm may also be a flashing alarm. When the stapler 100 malfunctions, the alarm will emit a flashing light signal to attract the attention of medical personnel. This flashing alarm provides a visual warning and generally requires the alarm to be installed in a conspicuous location on the stapler 100, such as the top or side of the operating handle 1. This setup ensures that medical personnel can quickly detect the alarm signal and take timely measures to ensure the safety of the surgery.

[0046] In some preferred embodiments, a set of receivers 72 is provided on the top wall 51 in the width direction of the anvil 5. The set of receivers 72 includes multiple receivers 72. When any of the multiple receivers 72 detects an abnormality, it can trigger an alarm, thereby enhancing the early warning effect. This arrangement can capture minute deformations of the anvil 5 at different positions in the width direction, enabling more comprehensive detection of the deformation of the anvil 5.

[0047] In some preferred embodiments, a set of receiving elements 72 is provided on the top wall 51 in the width direction of the anvil 5, and the set of receiving elements 72 is a single receiving element 72. The receiving element 72 is located at the position of the anvil 5 most prone to deformation. This arrangement enables the early warning function to be implemented at the lowest cost.

[0048] Furthermore, a set of receivers 72 is provided between the movable end 53 and the connecting end 54, and the ratio of the distance between the receiver 72 and the connecting end 54 to the distance between the receiver 72 and the movable end 53 is greater than 1 and less than or equal to 2.5. This is the location where the anvil 5 is most prone to deformation, i.e., the critical deformation area of ​​the anvil 5. By placing the receiver 72 at the most easily deformable position of the anvil 5, when the anvil 5 deforms, the receiver 72 can quickly detect this change. If the receiver 72 does not receive the signal emitted by the transmitter 71, the alarm is triggered.

[0049] In some preferred embodiments, multiple sets of receivers 72 are spaced apart between the movable end 53 and the connecting end 54. This arrangement allows for the detection of deformation of the anvil 5 at different positions and stages, facilitating comprehensive detection of the entire area of ​​the anvil 5. The multiple sets of receivers 72 also make the warning system more sensitive. Even minor deformation of the anvil 5 can be detected by at least one set of receivers 72, triggering an alarm. This highly sensitive warning system helps the control board 4 to promptly detect potential risks and take intervention measures.

[0050] To ensure optimal anastomosis results, the stapler 100 also includes a current detector (not shown) that is signal-connected or electrically connected to the control board 4. The current detector is configured to detect the current flowing through the drive motor 311 when the anvil 5 approaches and abuts against the staple cartridge seat 6. If the current exceeds a predetermined value, it indicates potential excessive resistance or an abnormal situation, triggering a protection program that stops the drive motor 31. This prevents poor anastomosis or equipment damage caused by excessive tissue thickness.

[0051] The pressure sensor 62, sensing component 7, and current detector work together with a preventative mechanism to ensure that the stapler 100 operates in optimal condition, thereby guaranteeing the best anastomosis effect. Specifically, the pressure sensor 62 monitors the pressure when the anvil 5 is pressed down. If the pressure value is abnormal, it indicates that there may be excessive compression or excessive tissue thickness. At this time, the control board 4 will receive a signal from the pressure sensor 62 and trigger the protection program, driving the motor 311 to stop working.

[0052] When the sensing component 7 detects that the tissue thickness exceeds a preset value, it sends a signal to the control board 4 to stop the drive motor 311. Simultaneously, during the operation of the drive motor 311, the current detector monitors the current of the drive motor 311 in real time. If the current increases abnormally, it indicates a possible abnormal situation. In this case, the current detector sends a signal to the control board 4 to trigger the protection program and stop the drive motor 311. In other words, the stapler 100 will only operate normally when the pressure sensor 62, the sensing component 7, and the current detector all show normal readings, ensuring optimal anastomosis results.

[0053] In summary, the stapler 100 of the present invention improves surgical outcomes by real-time monitoring of the deformation of the anvil 5 through the sensing component 7. By positioning the transmitter 71 on the side of the first end 321 facing the anvil 5 and the receiver on the anvil 5, if the receiver 72 does not receive a signal from the transmitter 71 when the connecting block 32 drives the anvil 5 closer to the staple cartridge seat 6, it indicates that the anvil 5 may have deformed and is unsuitable for continued surgery. Medical personnel can then replace the stapler 100 with a suitable one to ensure the anastomosis effect.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A stapler, characterized in that, include: Nail bin seat; The pin holder is connected to the pin cartridge holder. A drive assembly includes a drive element and a connecting block. The connecting block has a first end and a second end disposed opposite to each other. The first end is movably connected to the movable end of the pin holder, and the second end is drively connected to the drive element. The drive element drives the pin holder to move closer to or away from the pin cartridge holder through the connecting block. A sensing component, configured to detect the deformation of the anvil, includes a transmitter and a receiver connected by a signal connection, wherein the transmitter is disposed on the side of the first end facing the anvil, and the receiver is disposed on the anvil and is used to receive the signal emitted by the transmitter; During the movement of the anvil, the movable end and the first end move synchronously. When the transmitter and the receiver are at the same height, the receiver can receive the signal emitted by the transmitter. When the height difference between the transmitter and the receiver is greater than a predetermined difference, the receiver cannot receive the signal emitted by the transmitter. The movable end of the anvil is provided with a first sliding groove, and the first end of the connecting block is provided with a first rotating shaft. The connecting block is slidably connected to the first sliding groove through the first rotating shaft. The staple cartridge is provided with a second sliding groove, and the second end of the connecting block is drivenly connected to the driving component and is movably connected to the second sliding groove through the second rotating shaft. The driving component drives the second end to slide in the second groove along the first direction via the second rotating shaft, and drives the first end to slide in the first groove via the first rotating shaft. When the first rotating shaft reaches the end of the first groove, the second rotating shaft continues to slide to drive the pin holder away from the pin cartridge holder. The driving component drives the second end to slide in the second groove in a direction opposite to the first direction via the second rotating shaft, and drives the first end to slide in the first groove in the opposite direction via the first rotating shaft, and the pin seat approaches and abuts against the pin cartridge seat.

2. The stapler according to claim 1, characterized in that, The anvil includes a top wall and a side wall extending from the top wall toward the staple cartridge. The receiver is disposed on the side of the top wall facing the staple cartridge. Furthermore, a set of receivers, including one or more receivers, is disposed on the top wall in the width direction of the anvil.

3. The stapler according to claim 1, characterized in that, The anvil includes a movable end connected to the connecting block and a connecting end disposed opposite to the movable end. A set of receiving elements is provided between the movable end and the connecting end, and the ratio of the distance between the receiving element and the connecting end to the distance between the receiving element and the movable end is greater than 1 and less than or equal to 2.

5.

4. The stapler according to claim 1, characterized in that, The anvil includes a movable end connected to the connecting block and a connecting end disposed opposite to the movable end, and a plurality of receiving elements are disposed at intervals between the movable end and the connecting end.

5. The stapler according to any one of claims 1 to 4, characterized in that, It also includes a control board that is signal-connected to the sensing component, and the control board is signal-connected or electrically connected to the driving component. When the control board detects that the receiving component has received a signal from the transmitting component, the control board controls the driving component to work. Conversely, the control board controls the drive unit to not operate.

6. The stapler according to claim 5, characterized in that, The staple cartridge seat has a first slot corresponding to the first slide groove. A pressure sensor is provided on the side of the first slot facing the first slide groove. The pressure sensor is signal-connected to the control board and configured to detect the closing pressure of the staple seat and the staple cartridge seat. When the closing pressure is less than a predetermined pressure value, the control board controls the drive component to not work.

7. The stapler according to claim 5, characterized in that, It also includes a current detector that is signal-connected or electrically connected to the control board. The current detector is configured to detect the current of the drive unit when the pin holder approaches and abuts the pin cartridge holder. When the current is greater than a predetermined current value, the control board controls the drive unit to not operate.

8. The stapler according to claim 5, characterized in that, It also includes an alarm that sounds when the drive unit is not working.

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