Anastomat

Abstract

The invention provides an anastomat. The anastomat comprises a nail bin seat, a nail abutting seat, a driving assembly and a sensing assembly. The nail abutting base is connected with the nail bin base in a matched mode. The driving assembly comprises a driving piece and a connecting block. The connecting block comprises a first end and a second end which are oppositely arranged, the first end is movably connected with the movable end of the nail abutting base, and the second end is in transmission connection with the driving piece. The driving piece drives the nail abutting base to be close to or away from the nail bin base through the connecting block. The sensing assembly is configured to detect the deformation quantity of the nail abutting base and comprises a transmitting piece and a receiving piece which are in signal connection. Wherein the transmitting piece is arranged on the side, facing the nail abutting base, of the first end, and the receiving piece is arranged on the nail abutting base and used for receiving signals transmitted by the transmitting piece. Compared with the prior art, the anastomat can monitor the deformation quantity of the nail abutting seat in real time through the induction assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a stapler. Background Art

[0002] In the field of medical surgery, sleeve gastric anastomosis is an important treatment method and is widely used in the surgical treatment of diseases such as obesity and diabetes. However, the traditional sleeve gastric stapler faces a significant problem during use: due to the long anastomosis site, if the thickness of the tissue to be cut is thick, this often has an adverse effect on the anastomosis effect.

[0003] Specifically, there needs to be a scientific safety distance between the anvil and the stapler (placed inside the stapler, with built-in nail holes and titanium nails) to prevent tissue damage due to squeezing. When the stapler is anastomosing on long and thick tissues, the fit between the anvil and the stapler is often difficult to achieve the ideal tightness. This may cause problems such as leakage, bleeding or poor healing of the anastomosed tissue, which in turn affects the success rate of the operation 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 applied, resulting in excessive compression of some tissues while other tissues are not adequately anastomosed.

[0004] In view of this, it is indeed necessary to propose improvements to the existing staplers to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a stapler capable of detecting the thickness of cut tissue.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention provides a stapler, comprising:

[0007] Nail bin seat;

[0008] A nail support seat, connected with the nail magazine seat;

[0009] The driving assembly includes a driving member and a connecting block, wherein the connecting block includes a first end and a second end that are arranged opposite to each other, wherein the first end is movably connected to the movable end of the anvil seat, and the second end is drivingly connected to the driving member; the driving member drives the anvil seat to approach or move away from the nail magazine seat through the connecting block;

[0010] The sensing component is configured to detect the deformation of the anvil, and includes a transmitter and a receiver connected with signals, wherein the transmitter is arranged on the side of the first end facing the anvil, and the receiver is arranged on the anvil and is used to receive the signal sent by the transmitter.

[0011] Optionally, during the movement of the anvil, the movable end and the first end maintain synchronous movement, and when the transmitting element and the receiving element are at the same height, the receiving element can receive the signal sent by the transmitting element; when the height difference between the transmitting element and the receiving element is greater than a predetermined difference, the receiving element cannot receive the signal sent by the transmitting element.

[0012] Optionally, the nail support seat includes a top wall and a side wall extending from the top wall toward the nail magazine seat, and the receiving piece is arranged on the side of the top wall facing the nail magazine seat, and a group of receiving pieces are arranged on the top wall in the width direction of the nail support seat, and the group of receiving pieces includes one or more receiving pieces.

[0013] Optionally, the nail seat includes a movable end connected to the connecting block and a connecting end arranged opposite to the movable end, a group of receiving parts are provided between the movable end and the connecting end, and the ratio of the distance between the receiving part and the connecting end to the distance between the receiving part and the movable end is greater than 1 and less than or equal to 2.5.

[0014] Optionally, 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 groups of receiving members are spaced apart between the movable end and the connecting end.

[0015] Optionally, it also includes a control board connected to the sensing component signal, and the control board is connected to the driving component signal or electrically connected. When the control board detects that the receiving component receives the signal from the transmitting component, the control board controls the driving component to work; otherwise, the control board controls the driving component not to work.

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

[0017] Optionally, a second slide groove is provided on the nail magazine seat, and the second end of the connecting block is transmission-connected to the driving member and movably connected to the second slide groove through a second rotating shaft;

[0018] The driving member drives the second end to slide in the second slide groove along the first direction through the second rotating shaft, and drives the first end to slide in the first slide groove through the first rotating shaft. When the first rotating shaft reaches the end of the first slide groove, the second rotating shaft continues to slide to drive the nail support seat away from the nail magazine seat.

[0019] The driving member drives the second end to slide in the second slide groove through the second rotating shaft in a direction opposite to the first direction, and drives the first end to slide in the first slide groove in the opposite direction through the first rotating shaft, so that the nail support seat approaches and abuts against the nail magazine seat.

[0020] Optionally, 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 driving member when the nail seat approaches and abuts against the nail magazine seat. When the current is greater than a predetermined current value, the control member controls the driving member to stop working.

[0021] Optionally, an alarm is also included, which sounds an alarm when the driving member does not work.

[0022] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0023] The stapler of the present invention uses a sensing component to monitor the deformation of the anvil in real time to improve the surgical effect. The transmitter is set on the side of the first end facing the anvil, and the receiver is set on the anvil. When the connecting block drives the anvil to approach the stapler seat, the receiver cannot receive the signal sent by the transmitter, which means that the anvil may be deformed at this time and is not suitable for continuing the operation. Medical staff can replace the appropriate stapler to perform the surgical operation to ensure the anastomosis effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a stapler in accordance with a preferred embodiment of the present invention;

[0025] Figure 2 yes Figure 1 a cross-sectional view of the stapler;

[0026] Figure 3 is a schematic structural diagram of an anvil according to a preferred embodiment of the present invention;

[0027] Figure 4 yes Figure 2 Assembly drawing of the center receiver and the anvil;

[0028] Figure 5 This is a schematic structural diagram of a nail magazine seat according to a preferred embodiment of the present invention;

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

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

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

[0032] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0033] See also Figures 1 to 6 As shown, an embodiment of the present invention provides a stapler 100, including an operating handle 1 and a gun barrel 2 fixedly connected to the operating handle 1. A driving assembly 3 and a control board 4 are installed in the operating handle 1. A nail anvil 5, a nail magazine seat 6 and a sensing assembly 7 are installed on the side of the gun barrel 2 away from the operating handle 1. The sensing assembly 7 is used to detect the deformation of the nail anvil 5, and the sensing assembly 7 is connected to the control board 4 by signal. The control board 4 realizes intelligent control according to the information fed back by the sensing assembly 7. The nail anvil 5 is connected with the nail magazine seat 6, and the driving assembly 3 is used to drive the nail anvil 5 away from or close to the nail magazine seat 6 to realize the opening and closing of the gun barrel 2.

[0034] The driving assembly 3 includes a driving member 31 and a connecting block 32. The connecting block 32 includes a first end 321 and a second end 322 that are arranged 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 nail holder 5, and the second end 322 is transmission-connected to the driving member 31. The driving member 31 drives the nail holder 5 to approach or move away from the nail magazine seat 6 through the connecting block 32.

[0035] Specifically, the driving member 31 includes a driving motor 311, a transmission member 312 and a driving arm 313. The driving motor 311 and the transmission member 312 are installed in the operating handle 1, and a portion of the driving arm 313 is located in the operating handle 1, and a portion of the driving arm 313 is located in the gun barrel 2. One end of the transmission member 312 is connected to the driving motor 311, and the other end thereof is connected to the driving arm 313. The driving motor 311 drives the transmission member 312 to move, thereby driving the driving arm 313 to move, so that the connecting block 32 moves.

[0036] In this embodiment, the transmission member 312 is a screw rod, and a nut is sleeved on the screw rod. In other embodiments, it can also be other parts with transmission function, which is not limited here.

[0037] See also Figure 3 to Figure 4 As shown, the nail support 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 nail magazine seat 6. The movable end 53 is connected to the connecting block 32, and the connecting end 54 is arranged opposite to the movable end 53. The movable end 53 of the nail support 5 is provided with a first slide groove 55, and the connecting block 32 is slidably connected to the first slide groove 55 through the first rotating shaft 323.

[0038] Please combine Figures 2 to 5 As shown, the nail magazine seat 6 is provided with a second slide groove 63, and the second slide groove 63 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 in a transmission manner, and is movably connected to the second slide groove 63 through the second rotating shaft 324. It can be understood that the driving motor 311 drives the screw to rotate, so that the nut moves on the screw, thereby driving the driving arm 313 to move linearly. The driving arm 313 drives the second end 322 to slide in the second slide groove 63 along the first direction through the second rotating shaft 324, and drives the first end 321 to slide in the first slide groove 55 through the first rotating shaft 323. When the first rotating shaft 323 reaches the end of the first slide groove 55, the second rotating shaft 324 continues to slide to drive the nail support seat 5 away from the nail magazine seat 6.

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

[0040] A first slot 61 is provided on the nail magazine seat 6 at a position corresponding to the first slide groove 55, and a pressure sensor 62 is provided 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 signal and is configured to detect the closing pressure of the nail magazine seat 5 and the nail magazine seat 6. When the nail magazine seat 6 and the nail magazine seat 5 are close to each other so that the gun barrel 2 is closed, the first rotating shaft 323 abuts on the first slot 61 and applies pressure thereto. The pressure sensor 62 detects the closing pressure at this time. When the closing pressure is greater than the predetermined pressure value, it means that the tissue is too thick, which may cause loose closure and even damage the nail magazine seat 5. At this time, an abnormal signal is sent to the control board 4, and the control board 4 controls the driving member 31 not to work, thereby ensuring the safety and reliability of the operation. When the closing pressure is less than the predetermined pressure value, it means that the nail magazine seat 6 and the nail magazine seat 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 driving member 31 to work.

[0041] A cutting knife 8 is also provided between the anvil 5 and the staple cartridge seat 6, and the cutting knife 8 is used to cut tissue. When the gun barrel 2 is closed, the cutting knife 8 moves to cut tissue and pushes the suture staples (not shown) in the staple cartridge seat 6 to suture the tissue. The cutting knife 8 is subject to resistance during the movement and is prone to deformation. If the tissue to be cut is too thick, the cutting knife 8 is difficult to cut the tissue and cannot continue to move, which may cause the anvil 5 to be deformed by the tissue support.

[0042] See also Figures 2 to 6As shown, in order to detect the thickness of the cut tissue to ensure the anastomosis effect. A sensing component 7 is provided in the barrel 2. The sensing component 7 is a photoelectric thickness sensor in this embodiment, including a signal-connected transmitter 71 and a receiver 72. The driver 31 is signal-connected or electrically connected to the control board 4. Specifically, the transmitter 71 is arranged on the side of the top wall 51 facing the anvil 5, and the receiver 72 is arranged on the anvil 5 and is used to receive the signal sent by the transmitter 71. During the movement of the anvil 5, the movable end 53 and the first end 321 keep moving synchronously. When the transmitter 71 and the receiver 72 are at the same height, the receiver 72 can receive the signal sent by the transmitter 71, and the control board 4 controls the driver 31 to work. When the height difference between the transmitter 71 and the receiver 72 is greater than the predetermined difference, the receiver 72 cannot receive the signal sent by the transmitter 71. At this time, the anvil 5 may be deformed and is not suitable for continuing the operation. The control board 4 controls the driver 31 not to work, avoiding surgical errors or equipment damage caused by excessively thick tissue, thereby improving the accuracy and safety of the operation. By real-time monitoring of tissue thickness and taking corresponding control measures, the anvil 5 can be effectively prevented from being deformed due to excessive force, thereby extending the service life of the medical device.

[0043] Furthermore, an alarm (not shown) is provided inside the stapler 100, and the alarm sounds an alarm when the driving member 31 does not work. That is, when the driving member 31 stops working due to reasons such as excessive tissue thickness, the alarm can immediately sound an alarm to alert medical staff. This instant feedback mechanism helps medical staff to quickly identify and replace the appropriate stapler 100, thereby ensuring the anastomosis effect and enhancing the safety of the operation.

[0044] The alarm can be directly mounted on the control panel 4, and the alarm is triggered by the abnormal signal received by the control panel 4. When the sensing component 7 detects that the anvil 5 may be deformed, or the pressure sensor 62 on the nail magazine seat 6 detects abnormal pressure, or the current detector detects that the current of the driving component 3 is abnormal, the control panel 4 will immediately send a signal to the alarm, causing it to emit a clear and loud alarm sound to remind medical staff to pay attention and take corresponding measures.

[0045] In other embodiments, the alarm may also use a flashing alarm. When the stapler 100 is abnormal, the alarm will emit a flashing light signal to attract the attention of medical staff. This flashing alarm provides a visual warning, and generally requires the alarm to be installed in a conspicuous position of the stapler 100, such as the top or side wall of the operating handle 1. Such a setting can ensure that medical staff can quickly perceive the alarm signal, so as to take timely measures to ensure the safety of the operation.

[0046] In some preferred embodiments, a group of receiving members 72 is provided on the top wall 51 in the width direction of the anvil 5, and the group of receiving members 72 includes a plurality of receiving members 72. When any one of the plurality of receiving members 72 detects an abnormality, the alarm can be triggered to sound an alarm, thereby enhancing the early warning effect. With such a configuration, the slight deformation of the anvil 5 at different positions in the width direction can be captured, and the deformation of the anvil 5 can be detected more comprehensively.

[0047] In other preferred embodiments, a group of receiving members 72 is provided on the top wall 51 in the width direction of the anvil 5, and a group of receiving members 72 is one receiving member 72. The receiving member 72 is provided at the position where the anvil 5 is most easily deformed. In this way, the early warning function can be achieved at the lowest cost.

[0048] Furthermore, a set of receiving members 72 is provided between the movable end 53 and the connecting end 54, and the ratio of the distance between the receiving member 72 and the connecting end 54 to the distance between the receiving member 72 and the movable end 53 is greater than 1 and less than or equal to 2.5. Here, the anvil 5 is most likely to deform, that is, the key deformation area of ​​the anvil 5. The receiving member 72 is set at the position where the anvil 5 is most likely to deform, so when the anvil 5 is deformed, the receiving member 72 can quickly capture this change, and the receiving member 72 cannot receive the signal sent by the transmitting member 71, which triggers the alarm to sound an alarm.

[0049] In some preferred embodiments, multiple groups of receiving members 72 are spaced between the movable end 53 and the connecting end 54. This arrangement can capture the deformation of the anvil 5 at different positions and stages, which is conducive to achieving comprehensive detection of the entire area of ​​the anvil 5. The provision of multiple groups of receiving members 72 makes the early warning system more sensitive. Even if the anvil 5 undergoes a slight deformation, it can be captured by at least one group of receiving members 72 and trigger the alarm to sound a warning. This highly sensitive early warning system helps the control panel 4 to detect potential risks in a timely manner and take measures to intervene.

[0050] In order to ensure the best anastomosis effect, 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 of the drive motor 311 when the anvil 5 approaches and abuts against the staple cartridge seat 6. When the current is greater than a predetermined current value, it indicates that there may be excessive resistance or abnormal conditions. At this time, the protection program will be triggered, and the control component will control the drive component 31 to stop working. This avoids poor anastomosis or equipment damage caused by excessively thick tissue.

[0051] The pressure sensor 62, the sensing assembly 7 and the current detector cooperate with the prevention mechanism to ensure that the stapler 100 works in the best state, thereby ensuring the best staple effect. Specifically, the pressure sensor 62 monitors the pressure when the anvil 5 is pressed down. If the pressure value is abnormal, it means that there may be excessive compression or excessive tissue thickness. At this time, the control board 4 will receive the signal of the pressure sensor 62 and trigger the protection program, and the drive motor 311 will stop working.

[0052] When the sensing component 7 detects that the tissue thickness exceeds the preset value, it will send a signal to the control board 4 to stop the drive motor 311. At the same time, during the operation of the drive motor 311, the current detector is also monitoring the current of the drive motor 311 in real time. If the current increases abnormally, it means that an abnormal situation may have occurred. At this time, the current detector will send 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 work normally only when the pressure sensor 62, the sensing component 7 and the current detector all show normal conditions to ensure the best stapled effect.

[0053] In summary, the stapler 100 of the present invention monitors the deformation of the anvil 5 in real time through the sensing component 7 to improve the surgical effect. By setting the transmitter 71 on the side of the first end 321 facing the anvil 5, and the receiver 72 on the anvil 5, when the connecting block 32 drives the anvil 5 to approach the stapler seat 6, the receiver 72 cannot receive the signal sent by the transmitter 71, which means that the anvil 5 may be deformed at this time and is not suitable for continuing the operation. Medical staff can replace the appropriate stapler 100 to perform the surgical operation to ensure the anastomosis effect.

[0054] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A stapler, characterized in that: include: Nail bin seat; A nail anvil, connected with the nail magazine seat; The driving assembly comprises a driving member and a connecting block, wherein the connecting block comprises a first end and a second end arranged opposite to each other, the first end is movably connected to the movable end of the anvil seat, and the second end is drivingly connected to the driving member; the driving member drives the anvil seat to approach or move away from the nail magazine seat through the connecting block; The sensing component is configured to detect the deformation of the anvil, and includes a signal-connected transmitter and a receiver, wherein the transmitter is arranged on the side of the first end facing the anvil, and the receiver is arranged on the anvil and is used to receive the signal sent by the transmitter.

2. The stapler according to claim 1, characterized in that: During the movement of the anvil, the movable end and the first end maintain synchronous movement. When the transmitter and the receiver are located at the same height, the receiver can receive the signal sent 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 sent by the transmitter.

3. The stapler according to claim 1, characterized in that: The nail support seat includes a top wall and a side wall extending from the top wall toward the nail magazine seat, the receiving piece is arranged on the side of the top wall facing the nail magazine seat, and in the width direction of the nail support seat, a group of receiving pieces are arranged on the top wall, and the group of receiving pieces includes one or more receiving pieces.

4. The stapler according to claim 1, characterized in that: The dowel seat includes a movable end connected to the connecting block and a connecting end arranged opposite to the movable end, a group of receiving members are provided between the movable end and the connecting end, and the ratio of the distance between the receiving member and the connecting end to the distance between the receiving member and the movable end is greater than 1 and less than or equal to 2.

5.

5. The stapler according to claim 1, characterized in that: The anvil seat includes a movable end connected to the connecting block and a connecting end arranged opposite to the movable end, and a plurality of groups of receiving members are arranged at intervals between the movable end and the connecting end.

6. The stapler according to any one of claims 1 to 5, characterized in that: It also includes a control board connected to the sensing component signal, and the control board is connected to the driving element signal or electrically connected, when the control board detects that the receiving element receives the signal of the transmitting element, the control board controls the driving element to work; Otherwise, the control board controls the driving member to not work.

7. The stapler according to claim 6, characterized in that: The movable end of the nail support 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, a first slot is provided on the nail magazine seat at a position 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 connected to the control board signal, and is configured to detect the closing pressure of the nail support and the nail magazine seat, when the closing pressure is less than a predetermined pressure value, the control board controls the driving member not to work.

8. The stapler according to claim 7, characterized in that: The nail magazine seat is provided with a second slide groove, the second end of the connecting block is transmission-connected to the driving member, and is movably connected to the second slide groove through a second rotating shaft; The driving member drives the second end to slide in the second slide groove along the first direction through the second rotating shaft, and drives the first end to slide in the first slide groove through the first rotating shaft. When the first rotating shaft reaches the end of the first slide groove, the second rotating shaft continues to slide to drive the nail support seat away from the nail magazine seat. The driving member drives the second end to slide in the second slide groove along a direction opposite to the first direction through the second rotating shaft, and drives the first end to slide in the first slide groove in the opposite direction through the first rotating shaft, and the nail support seat approaches and abuts against the nail magazine seat.

9. The stapler according to claim 8, characterized in that: It also includes a current detector that is signal-connected or electrically connected to the control board, and the current detector is configured to detect the current of the driving member when the nail holder approaches and abuts against the nail magazine seat. When the current is greater than a predetermined current value, the control member controls the driving member to stop working.

10. The stapler according to claim 6, characterized in that: It also includes an alarm, which sounds an alarm when the driving member does not work.

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