Anorectal anastomat with thickness detection function

Abstract

The invention discloses an anorectal anastomat with a thickness detection function, which belongs to the technical field of medical instruments and comprises a nail bin assembly, a nail abutting seat assembly and a percussion mechanism used for driving the nail bin assembly and the nail abutting seat assembly to move relatively to clamp and anastomose tissues. The thickness detection unit is arranged on the nail bin assembly, the feedback mechanism is used for providing feedback information for an operator based on a detection result of the thickness detection unit, and the thickness detection unit can detect the thickness of clamped tissue or physical quantity related to the thickness when the tissue is clamped by the nail bin assembly and the nail abutting seat assembly; the feedback mechanism is in signal connection with the thickness detection unit. The anorectal anastomat has the advantages that the thickness or the state of the tissue can be objectively evaluated in real time in the operation, and the operation parameters are guided or automatically adjusted according to the thickness or the state, so that the operation safety and the anastomosis quality are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an anorectal anastomosis device with thickness detection function. Background Technology

[0002] Anorectal staplers are essential instruments in anorectal surgery (such as hemorrhoidectomy and low anterior resection of rectal cancer). They are used to complete the resection and anastomosis of tissue in one procedure. The basic working principle is to operate the handle to bring the anvil and the staple cartridge containing the staples closer together, clamp the tissue to be removed, and then fire, so that the staples penetrate the tissue and bend into a "B" shape under the reverse action of the anvil to complete the anastomosis. At the same time, the built-in circular blade cuts off the excess tissue inside the anastomosis ring.

[0003] In current technology, doctors mainly rely on experience and touch to judge the tightness of tissue clamping. Due to the lack of objective and real-time information on tissue thickness, the following problems can easily occur: if the clamping is too tight, it may excessively compress the tissue, leading to local ischemia and necrosis, increasing the risk of postoperative anastomotic leakage, stenosis, or pain; if the clamping is too loose, it may lead to poor suture formation and insecure staple fixation, causing bleeding or anastomotic leakage; especially for different patients and tissues with different pathological conditions (such as edema, thickened, and fragile tissues), the ideal clamping force varies greatly, and it is difficult to accurately control it based on experience alone.

[0004] Therefore, there is an urgent need for an anorectal stapler that can objectively assess tissue thickness or condition in real time during surgery and guide or automatically adjust operating parameters accordingly to improve surgical safety and anastomosis quality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of existing anorectal staplers, such as the inability to sense tissue thickness in real time, the strong subjectivity of clamping operation, and the susceptibility to complications due to improper force, and to provide an anorectal stapler that can detect tissue thickness in real time and provide feedback.

[0006] The anorectal stapler with thickness detection function provided in this application adopts the following technical solution: An anorectal stapler with thickness detection function includes a staple cartridge assembly, an anvil assembly, and a firing mechanism for driving relative movement between the staple cartridge assembly and the anvil assembly to clamp and anastomose tissue. It also includes a thickness detection unit disposed on the staple cartridge assembly and a feedback mechanism for providing feedback information to the operator based on the detection results of the thickness detection unit. The thickness detection unit can detect the thickness of the clamped tissue or a thickness-related physical quantity when the staple cartridge assembly and the anvil assembly clamp the tissue. The feedback mechanism is signal-connected to the thickness detection unit.

[0007] By adopting the above technical solution, the thickness detection unit is set on the staple cartridge assembly. During the use of the anorectal stapler, the firing mechanism drives the relative movement of the staple cartridge assembly and the anvil assembly to clamp the tissue. During this process, the thickness detection unit detects the thickness of the clamped tissue and related physical quantities in real time, and provides feedback to the operator through the feedback mechanism. The operator determines whether it is necessary to continue adjusting the relative movement of the staple cartridge assembly and the anvil assembly based on this information. If the operator determines that the cutting operation can be performed based on the information, the firing mechanism drives the staple pushing component in the staple cartridge assembly to complete the anastomosis and the cutting component to complete the cutting.

[0008] Preferably, the thickness detection unit includes at least one pressure sensing module for detecting the pressure exerted on the tissue during clamping, and the pressure sensing module is disposed on the tissue contact surface of the staple cartridge assembly.

[0009] By adopting the above technical solution, the thickness detection unit includes at least one pressure sensing module for detecting the pressure on the tissue during clamping. The pressure sensing module is set on the tissue contact surface of the staple cartridge assembly. During the use of the anorectal stapler, the pressure sensing module senses the pressure by contacting the tissue surface and then feeds back the detected information to the operator through the feedback mechanism.

[0010] Preferably, there are multiple pressure sensing modules, which are distributed circumferentially along the staple cartridge assembly. These multiple pressure sensing modules are used to obtain the thickness distribution information of the clamped tissue in the circumferential direction.

[0011] By adopting the above technical solution, there are multiple pressure sensing modules distributed circumferentially along the staple cartridge assembly. During the use of the anorectal stapler, the multiple pressure sensing modules can obtain the thickness distribution information of the clamped tissue in the circumferential direction. The real-time detection of multiple sensors improves the detection effect of the tissue.

[0012] Preferably, the feedback mechanism includes a display module for displaying the detected tissue thickness information in numerical or other forms and a mounting component for mounting the display module, wherein the mounting component may be disposed on the device body.

[0013] By adopting the above technical solution, during the use of the anorectal stapler, the placement component can be set on the device body, and the display module is placed inside the placement component. The display module displays the detected tissue thickness information in numerical form, which makes it convenient for staff to intuitively observe the detection data.

[0014] Preferably, the mounting assembly includes a mounting frame and a protective plate hinged to the mounting frame at one end. One side of the mounting frame has a mounting groove, and the other side of the mounting frame has an observation window. The observation window is connected to the mounting groove. The other end of the protective plate can be connected to the mounting frame via a connector. The display module is disposed in the mounting groove, and the protective plate prevents the display module from detaching from the mounting frame.

[0015] By adopting the above technical solution, a mounting groove is provided on one side of the mounting frame, and an observation window is provided on the other side of the mounting frame. The observation window is connected to the mounting groove. One end of the protective plate is hinged to the mounting frame, and the other end of the protective plate can be connected to the mounting frame through a connector. The display module is set in the mounting groove. During the operation of the display module, the protective plate prevents the display module from detaching from the mounting frame, thereby improving the stability of the display module during operation.

[0016] Preferably, the staple cartridge assembly, the staple anchor assembly, and the firing mechanism are all disposed on the device body, and a snap-fit ​​groove is provided on the side of the mounting frame. The mounting assembly includes a snap-fit ​​member that can be snapped onto the device body. The snap-fit ​​member is rotatably disposed on the mounting frame and disposed in the snap-fit ​​groove.

[0017] By adopting the above technical solution, the nail cartridge assembly, the nail anchor assembly, and the firing mechanism are all set on the device body. The side of the mounting frame is provided with a snap-fit ​​groove. The snap-fit ​​component is rotatably set on the mounting frame and is set in the snap-fit ​​groove. When it is necessary to install the display module on the device body, the snap-fit ​​component is snapped onto the device body, which makes it easy to store the display module and the device body together.

[0018] Preferably, the device body is provided with a control unit that is signal-connected to the thickness detection unit. The control unit can receive the detection signal from the thickness detection unit. The feedback mechanism includes an audible and visual alarm unit for alerting staff. The audible and visual alarm unit is disposed on the mounting frame. The control unit can control the operation of the audible and visual alarm unit.

[0019] By adopting the above technical solution, a control unit connected to the thickness detection unit is set on the device body, and an audible and visual alarm unit is set on the mounting frame. The control unit can regulate the operation of the audible and visual alarm unit. During the use of the anorectal stapler, the control unit receives the detection signal from the thickness detection unit. If the control unit receives an abnormal signal from the thickness detection unit, it indicates that an abnormality has occurred during the detection process. The audible and visual alarm unit will issue a signal to warn the staff, so as to avoid the situation where the staff does not know about the abnormality during the detection process and still operates, which may cause injury to the patient.

[0020] Preferably, the device body is provided with an adjusting member for adjusting the initial distance or clamping force between the staple cartridge assembly and the staple seat assembly, and the adjusting member is rotatably mounted on the device body.

[0021] By adopting the above technical solution, the adjusting component is rotatably mounted on the device body. The adjusting component can adjust the initial distance or clamping force between the staple cartridge assembly and the staple seat assembly, which is convenient for operators.

[0022] Preferably, the feedback mechanism includes a data recording and communication module for recording data detected by the thickness detection unit during the operation. The data recording and communication module can store the data locally or transmit it wirelessly to an external device.

[0023] By adopting the above technical solution, the data recording and communication module can record the data detected by the thickness detection unit during the operation. The data recording and communication module can store the data locally or transmit it to an external device wirelessly, which is convenient for real-time recording and storage of data, and facilitates later analysis and summarization.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The thickness detection unit is set on the staple cartridge assembly. During the use of the anorectal stapler, the firing mechanism drives the relative movement of the staple cartridge assembly and the anvil assembly to clamp the tissue. During this process, the thickness detection unit detects the thickness of the clamped tissue and related physical quantities in real time, and provides feedback to the operator through the feedback mechanism. The operator determines whether it is necessary to continue to adjust the relative movement of the staple cartridge assembly and the anvil assembly based on this information. If the operator determines that the cutting operation can be performed based on the information, the firing mechanism drives the staple pushing component in the staple cartridge assembly to complete the anastomosis and the cutting component to complete the cutting. 2. The device body is equipped with a control unit that is connected to the thickness detection unit. The audible and visual alarm unit is located on the mounting frame. The control unit can regulate the operation of the audible and visual alarm unit. During the use of the anorectal stapler, the control unit receives the detection signal from the thickness detection unit. If the control unit receives an abnormal signal from the thickness detection unit, it indicates that an abnormality has occurred during the detection process. The audible and visual alarm unit will issue a signal to warn the staff to avoid situations where staff are unaware of abnormalities during the detection process and continue to operate, which could cause injury to the patient. 3. The data recording and communication module can record the data detected by the thickness detection unit during the operation. The data recording and communication module can store the data locally or transmit it to an external device wirelessly, which is convenient for real-time recording and storage of data, and facilitates later analysis and summarization. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an anorectal stapler with thickness detection function in an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the connection structure of the feedback mechanism in an embodiment of this application.

[0027] Figure 3 yes Figure 1 A magnified view of a portion of point A in the middle.

[0028] Figure 4 This is a schematic diagram of the structure of the snap-fit ​​component in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures: 1. Body; 11. Adjustment component; 2. Attachment cartridge assembly; 3. Attachment seat assembly; 4. Firing mechanism; 5. Thickness detection unit; 51. Pressure sensing module; 6. Feedback mechanism; 61. Display module; 62. Mounting component; 63. Audible and visual alarm unit; 631. Voice broadcast module; 632. Indicator light module; 64. Mounting frame; 641. Observation window; 65. Protective plate; 66. Snap-fit ​​component. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses an anorectal stapler with thickness detection function. (Refer to...) Figure 1 and Figure 2 As shown, an anorectal stapler with thickness detection function includes a body 1, a staple cartridge assembly 2, a staple seat assembly 3, a firing mechanism 4, a thickness detection unit 5, and a feedback mechanism 6.

[0032] Reference Figure 1 and Figure 3 As shown, the staple cartridge assembly 2, the staple seat assembly 3, and the firing mechanism 4 are all mounted on the body 1. The thickness detection unit 5 is mounted on the staple cartridge assembly 2. The thickness detection unit 5 includes a pressure sensing module 51. There are multiple pressure sensing modules 51. In this embodiment, there are preferably nine pressure sensing modules 51. The nine or more pressure sensing modules 51 are distributed along the circumference of the staple cartridge assembly 2.

[0033] Reference Figure 1 and Figure 3 As shown, the pressure sensing module 51 can detect the thickness of the clamped tissue or a thickness-related physical quantity when the staple cartridge assembly 2 and the anvil assembly 3 clamp the tissue. In this embodiment, the thickness-related physical quantity refers to the thickness distribution information of the clamped tissue in the circumferential direction obtained by the pressure sensing module 51.

[0034] Reference Figure 1 and Figure 2As shown, the feedback mechanism 6 includes a display module 61, a mounting component 62, an audible and visual alarm unit 63, and a data recording and communication module. The display module 61 is connected to the thickness detection unit 5. The display module 61 can display the detected tissue thickness information in numerical form, which makes it easier for staff to observe the detection data intuitively.

[0035] Reference Figure 1 and Figure 3 As shown, during the use of the anorectal stapler, the firing mechanism 4 drives the staple cartridge assembly 2 and the anvil assembly 3 to move relative to each other to clamp the tissue. During this process, 9 pressure sensing modules 51 detect the thickness of the clamped tissue and the physical quantities related to the thickness in real time, thereby improving the detection effect of the tissue. Reference Figure 1 , Figure 2 and Figure 3 As shown, the display module 61 provides feedback to the operator with the detection information from the pressure sensing module 51. The operator determines whether it is necessary to continue adjusting the relative movement between the staple cartridge assembly 2 and the staple seat assembly 3 based on this information. If the operator determines that the cutting operation can be performed based on the information, the driving firing mechanism 4 drives the staple pushing component in the staple cartridge assembly 2 to complete the mating and the cutting component to complete the cutting. In this embodiment, the display module 61 is an electronic display screen.

[0036] Reference Figure 1 and Figure 2 As shown, the data recording and communication module can record the data detected by the thickness detection unit 5 during the operation. The data recording and communication module can store the data locally or transmit it to an external device wirelessly, which is convenient for real-time recording and storage of data, and facilitates later analysis and summarization.

[0037] Reference Figure 1 , Figure 2 and Figure 4 As shown, the mounting component 62 includes a mounting frame 64, a protective plate 65, and a snap-fit ​​connector 66. One side of the mounting frame 64 has a mounting groove, and the other side of the mounting frame 64 has an observation window 641, which is connected to the mounting groove. One end of the protective plate 65 is hinged to the mounting frame 64, and the other end of the protective plate 65 can be connected to the mounting frame 64 through a connector. In this embodiment, the connector is a magnetic block. The display module 61 is disposed in the mounting groove. During the operation of the display module 61, the protective plate 65 prevents the display module 61 from detaching from the mounting frame 64, thereby improving the stability of the display module 61 during operation.

[0038] Reference Figure 1 , Figure 2 and Figure 3As shown, a snap-fit ​​groove is provided on the side of the mounting frame 64. The snap-fit ​​piece 66 is rotatably mounted on the mounting frame 64 and is located in the snap-fit ​​groove. When it is necessary to install the display module 61 on the device body 1, the snap-fit ​​piece 66 is snapped onto the device body 1, so that the display module 61 can be stored together with the device body 1.

[0039] Reference Figure 1 , Figure 2 and Figure 3 As shown, a control unit is installed on the device body 1. The control unit is connected to the pressure sensing module 51. The audible and visual alarm unit 63 is installed on the mounting frame 64. The control unit can control the operation of the audible and visual alarm unit 63. During the use of the anorectal stapler, the control unit receives the detection signal from the thickness detection unit 5. If the control unit receives an abnormal signal from the thickness detection unit 5, it indicates that an abnormality has occurred during the detection process. The audible and visual alarm unit 63 will issue a signal to warn the staff to avoid the situation where an abnormality occurs during the detection process but the staff is unaware and still operates, which may cause injury to the patient.

[0040] Reference Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the sound and light alarm unit 63 includes a voice broadcast module 631 and an indicator light module 632. When the control unit receives an abnormal signal from the thickness detection unit 5, the voice broadcast module 631 will issue a voice signal to warn, and the indicator light module 632 will flash to warn.

[0041] Reference Figure 1 As shown, an adjusting component 11 is provided on the device body 1. The adjusting component 11 is rotatably mounted on the device body 1. The adjusting component 11 can adjust the initial distance or clamping force between the staple cartridge assembly 2 and the staple seat assembly 3, making it convenient for operators to operate.

[0042] The implementation principle of an anorectal stapler with thickness detection function in this application embodiment is as follows: During the use of the anorectal stapler, the firing mechanism 4 drives the staple cartridge assembly 2 and the anvil assembly 3 to move relative to each other to clamp the tissue. During this process, the thickness detection unit 5 detects the thickness of the clamped tissue and related physical quantities in real time, and provides feedback to the operator through the feedback mechanism 6. Based on this information, the operator determines whether it is necessary to continue adjusting the relative movement of the staple cartridge assembly 2 and the anvil assembly 3. If the operator determines that the cutting operation can be performed based on the information, the firing mechanism 4 drives the staple pusher in the staple cartridge assembly 2 to complete the anastomosis and the cutting component to complete the cutting.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A transrectal anastomosis device with thickness detection function, comprising a staple cartridge assembly (2), an anvil assembly (3), and a firing mechanism (4) for driving the staple cartridge assembly (2) and the anvil assembly (3) to move relative to each other to clamp and anastomose tissue, characterized in that, Also includes: A thickness detection unit (5) and a feedback mechanism (6) for providing feedback information to the operator based on the detection results of the thickness detection unit (5) are provided on the staple cartridge assembly (2). The thickness detection unit (5) can detect the thickness of the clamped tissue or a thickness-related physical quantity when the staple cartridge assembly (2) and the anvil assembly (3) clamp the tissue. The feedback mechanism (6) is signal-connected to the thickness detection unit (5).

2. The anorectal stapler with thickness detection function according to claim 1, characterized in that: The thickness detection unit (5) includes at least one pressure sensing module (51) for detecting the pressure applied to the tissue when it is clamped, and the pressure sensing module (51) is disposed on the tissue contact surface of the staple cartridge assembly (2).

3. The anorectal stapler with thickness detection function according to claim 2, characterized in that: There are multiple pressure sensing modules (51), which are distributed circumferentially along the staple cartridge assembly (2). The multiple pressure sensing modules (51) are used to obtain the thickness distribution information of the clamped tissue in the circumferential direction.

4. The anorectal stapler with thickness detection function according to claim 1, characterized in that: The feedback mechanism (6) includes a display module (61) for displaying the detected tissue thickness information in numerical form and a mounting component (62) for mounting the display module (61), which can be mounted on the body (1).

5. The anorectal stapler with thickness detection function according to claim 4, characterized in that: The mounting component (62) includes a mounting frame (64) and a protective plate (65) hinged to the mounting frame (64) at one end. One side of the mounting frame (64) has a mounting groove, and the other side of the mounting frame (64) has an observation window (641) connected to the mounting groove. The other end of the protective plate (65) can be connected to the mounting frame (64) through a connector. The display module (61) is disposed in the mounting groove, and the protective plate (65) prevents the display module (61) from detaching from the mounting frame (64).

6. The anorectal stapler with thickness detection function according to claim 5, characterized in that: The staple cartridge assembly (2), the staple anchor assembly (3), and the firing mechanism (4) are all mounted on the body (1). The mounting frame (64) has a snap-fit ​​groove on its side. The mounting assembly includes a snap-fit ​​member (66) that can be snapped onto the body (1). The snap-fit ​​member (66) is rotatably mounted on the mounting frame (64) and is located in the snap-fit ​​groove.

7. The anorectal stapler with thickness detection function according to claim 6, characterized in that: The body (1) is provided with a control unit that is signal-connected to the thickness detection unit (5). The control unit can receive the detection signal from the thickness detection unit (5). The feedback mechanism (6) includes an audible and visual alarm unit (63) for alerting staff. The audible and visual alarm unit (63) is provided on the mounting frame (64). The control unit can control the operation of the audible and visual alarm unit (63).

8. The anorectal stapler with thickness detection function according to claim 4, characterized in that: The device body (1) is provided with an adjusting member (11) for adjusting the initial distance or clamping force between the staple cartridge assembly (2) and the staple seat assembly (3), and the adjusting member (11) is rotatably mounted on the device body (1).

9. The anorectal stapler with thickness detection function according to claim 1, characterized in that: The feedback mechanism (6) includes a data recording and communication module for recording the data detected by the thickness detection unit (5) during the operation. The data recording and communication module can store the data locally or transmit it wirelessly to an external device.

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