An anastomosis device clamp force measuring device

Abstract

The application discloses an anastomat clamping force measuring device and relates to the field of medical instrument detection.The anastomat clamping force measuring device comprises a device shell and an anastomat body, the inner side of the device shell is provided with a pressure sensing plate, the outer side of the device shell is provided with a main machine panel, the inner side of the device shell is provided with a material injection cylinder, the top of the material injection cylinder is provided with a feeding hopper, the top of the device shell is provided with a material injection valve for conveying viscous simulation liquid, the material injection valve is connected with the feeding hopper through a hose, and the outer side of the pressure sensing plate is wrapped with a film strip; the anastomat clamping force measuring device further comprises a film replacing mechanism for continuously replacing the film strip, and the film replacing mechanism comprises a winding roller rotatably arranged on the inner side of the device shell; the anastomat clamping force measuring device can simulate the wet and smooth and viscous operation condition of human body tissue liquid through the film replacing mechanism, improve the accuracy of clamping force detection of the anastomat body, can store the film strip after use, and can wrap a clean film strip on the pressure sensing plate, so that the effect of continuous simulation measurement is achieved.

Description

Technical Field

[0001] This invention relates to the field of medical device testing, specifically to a device for measuring the clamping force of a stapler. Background Technology

[0002] As a specialized medical instrument used in surgical clinics to replace traditional manual suturing, the stapler relies on an internal mechanical transmission structure to drive titanium nails to quickly penetrate two layers of human tissue. The anvil structure completes the bending and shaping of the titanium nails, achieving precise alignment and fixation of the surgical wound tissue. Some integrated models integrate a cutting blade, which can simultaneously cut tissue while completing tissue anastomosis, greatly simplifying the surgical procedure.

[0003] Before leaving the factory, staplers must undergo multiple batches of sampling clamping force performance tests to ensure uniform clamping force distribution, stable output, and that all parameters meet standards before being put into clinical use. Currently, mainstream clamping force testing equipment generally uses a method of clamping the stapler cartridge and anvil between a pressure testing plate. The plate relies on a built-in force sensor to convert mechanical force into an electrical signal, thereby calculating the stapler's clamping force parameters. However, in actual clinical surgical environments, the surface of human tissue is rich in tissue fluid, making the contact surface slippery and viscous, significantly reducing the coefficient of friction. Existing tests only collect physical closure pressure under dry conditions, failing to simulate the slippery conditions of real surgery. This results in significant deviations between the test data and actual clinical conditions, easily leading to problems such as qualified test parameters but tissue slippage or misalignment during surgery, ultimately causing anastomosis failure. Overall, the accuracy and clinical suitability of the testing are insufficient. Summary of the Invention

[0004] The purpose of this invention is to provide a device for measuring the clamping force of an anastomosis device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A stapler clamping force measuring device includes: a device housing and a stapler body disposed on the outside of the device housing; a pressure sensing plate disposed on the inner side of the device housing; a main unit panel mounted on the outer side of the device housing; an injection cylinder disposed on the inner side of the device housing; a feed hopper fixedly mounted on the top of the injection cylinder; an injection valve for conveying a viscous simulated liquid mounted on the top of the device housing, and the injection valve being connected to the feed hopper via a hose; and a thin film strip wrapped around the outer side of the pressure sensing plate; further comprising: a film changing mechanism for continuously replacing the thin film strip, the film changing mechanism being installed on the inner side of the device housing; the film changing mechanism... The device includes a take-up roller rotatably mounted inside the housing of the device, which is capable of receiving the film strip; a spreading mechanism for evenly spreading the viscous simulated liquid onto the film strip, the spreading mechanism being installed inside the injection cylinder, the spreading mechanism including a dispensing column rotatably mounted inside the injection cylinder, the dispensing column being capable of dispensing the viscous simulated liquid in batches; and a cleaning mechanism for cleaning the viscous simulated liquid from the outside of the film strip, the cleaning mechanism being installed inside the housing of the device, the cleaning mechanism including a receiving hopper disposed inside the housing of the device, the receiving hopper being capable of cleaning the viscous simulated liquid from the outside of the film strip.

[0006] Preferably, the film changing mechanism further includes a horizontal plate fixedly installed inside the device housing. Two symmetrically distributed support plates are installed on the outer side of the horizontal plate. A film feeding roller located above the take-up roller is rotatably installed between the two support plates. The take-up roller is rotatably installed between the two support plates. The film strip is installed between the take-up roller and the film feeding roller. Two pressure rollers are rotatably installed between the two support plates, and the two pressure rollers are respectively located at the top and bottom of the horizontal plate. Both pressure rollers are in contact with the outer side of the film strip. Mounting strips are fixedly installed on both sides of the pressure sensing plate. An inner support roller is rotatably installed between the two mounting strips. The inner support roller is located on the outer side of the pressure sensing plate away from the horizontal plate. The inner support roller is in contact with the inner side of the film strip. A drive motor is fixedly installed on the outer side of the device housing. The output end of the drive motor is connected to one end of the take-up roller.

[0007] Preferably, the material spreading mechanism further includes multiple receiving troughs symmetrically arranged on the outside of the distributing column. The outside of the distributing column is in contact with the inside of the injection cylinder. A driven rod is fixedly installed on the inside of the distributing column. One end of the driven rod is rotatably installed on the inside of the device housing. A mounting frame is fixedly installed on the inside of the device housing. The mounting frame is fixedly installed on the outside of the injection cylinder. A discharge frame located directly below the feed hopper is fixedly installed on the outside of the injection cylinder. An installation rod is rotatably installed on the inside of the receiving trough. Multiple stirring rods are fixedly installed on the outside of the installation rod. Gears are fixedly installed at both ends of the installation rod. Two symmetrically distributed toothed rings are fixedly installed on the inside of the injection cylinder, and the gears mesh with adjacent toothed rings. A first synchronous belt is rotatably installed between one end of the driven rod and one end of the take-up roller.

[0008] Preferably, the cleaning mechanism further includes two symmetrically fixed support bars installed inside the housing of the device, a feed cylinder fixedly installed between the two support bars, the bottom of the receiving hopper fixedly connected to the top of the feed cylinder, a scraper fixedly installed on the top of the receiving hopper, the scraper having an arc-shaped structure, the scraper being close to the outer side of the film strip, the scraper being located below the horizontal plate, a rotating rod rotatably installed inside the feed cylinder, a spiral scraper fixedly installed on the outer side of the rotating rod, and the outer side of the spiral scraper contacting the inner side of the feed cylinder, a second synchronous belt rotatably installed between one end of the rotating rod and one end of the take-up roller, and a discharge pipe fixedly installed at the end of the feed cylinder away from the second synchronous belt.

[0009] Preferably, a sealing cover is installed on the outside of the device housing, and the support plate is bolted to the outside of the cross plate.

[0010] Preferably, a positioning rib is fixedly installed on the side of the mounting strip away from the pressure sensing plate, and two symmetrically distributed insert frames are fixedly installed on the outer side of the horizontal plate, with the two insert frames respectively fitted onto the outer side of the two positioning ribs.

[0011] Preferably, the outer side of the device housing is provided with an insertion port for the mounting strip to slide and limit.

[0012] Preferably, sealing rings are fixedly installed at both ends of the injection cylinder, and the two sealing rings are respectively in contact with the two ends of the distributing column.

[0013] Preferably, side plates are fixedly installed at both ends of the scraper, and the length of the scraper is greater than the width of the film strip.

[0014] Preferably, a heater is fixedly installed on the inner side of the device housing, and the top of the heater is in contact with the bottom of the feed cylinder, and the outer side of the feed cylinder is made of a heat-conducting material.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a membrane-changing mechanism, allowing the membrane strip to be fitted over the outside of the pressure sensing plate. By using a viscous simulated liquid to mimic the slippery and viscous surgical conditions of human tissue fluid, the accuracy of the clamping force detection of the stapler body is improved. Furthermore, a winding roller can be used to wind up the membrane strip, facilitating the storage of the used membrane strip. The clean membrane strip is then fitted over the pressure sensing plate, thereby achieving the effect of continuous simulation measurement.

[0016] This invention, through a material spreading mechanism, can evenly spread the viscous simulated liquid in the feed hopper onto the film strip during its movement, and can also maintain a seal on the feed hopper when the film strip stops moving, thereby achieving the effect of automatic feeding.

[0017] This invention, through a cleaning mechanism, enables a scraper to remove the viscous simulated liquid from the outside of the film strip during its movement, and discharges it through the feed cylinder, thereby achieving automatic cleaning and ensuring the cleanliness of the device's casing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the device housing and sealing cover structure in this invention; Figure 3 This is a partial cross-sectional structural diagram of the support plate and film feeding roller in this invention; Figure 4 This is a schematic diagram of the film strip and inner support roller structure in this invention; Figure 5 This is a partial cross-sectional view of the mounting strip and cross plate in this invention; Figure 6 This is a partial cross-sectional view of the mounting rod and the injection cylinder in this invention. Figure 7 This is a partial cross-sectional structural diagram of the material distribution column and the driven rod in this invention; Figure 8 This is a partial cross-sectional structural diagram of the spiral scraper and scraper plate in this invention.

[0019] In the diagram: 1. Device housing; 2. Anastomosing device body; 3. Pressure sensor plate; 4. Main unit panel; 5. Injection cylinder; 6. Feed hopper; 7. Injection valve; 8. Film strip; 9. Take-up roller; 10. Distributor column; 11. Take-up hopper; 12. Horizontal plate; 13. Support plate; 14. Film feeding roller; 15. Pressure roller; 16. Mounting strip; 17. Inner support roller; 18. Drive motor; 19. Take-up trough; 20. Driven rod; 21. Mounting frame; 22. Discharge frame; 23. Mounting rod; 24. Gear; 25. Gear ring; 26. First synchronous belt; 27. Support strip; 28. Feed cylinder; 29. ​​Scraper; 30. Rotating rod; 31. Spiral scraper; 32. Second synchronous belt; 33. Discharge pipe; 34. Sealing cover; 35. Insert frame; 36. Sealing ring; 37. Side plate; 38. Heater. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-8 The diagram shows a stapler clamping force measuring device, which includes a device housing 1 and a stapler body 2 disposed on the outside of the device housing 1. A pressure sensing plate 3 is disposed on the inside of the device housing 1, and a main unit panel 4 is installed on the outside of the device housing 1. An injection cylinder 5 is disposed on the inside of the device housing 1, and a feed hopper 6 is fixedly installed on the top of the injection cylinder 5. An injection valve 7 for conveying viscous simulated liquid is installed on the top of the device housing 1, and the injection valve 7 is connected to the feed hopper 6 through a hose. A thin film strip 8 is wrapped around the outside of the pressure sensing plate 3. The injection valve 7 injects viscous simulated liquid into the feed hopper 6 through the hose, so that the injection cylinder 5 spreads the viscous simulated liquid on the thin film strip 8 to simulate the slippery and viscous surgical conditions of human tissue fluid. The staple cartridge and anvil of the stapler body 2 clamp the pressure sensing plate 3 through the thin film strip 8. The pressure sensing plate 3 transmits pressure data to the main unit panel 4 to obtain the stapler clamping force data under simulated surgical conditions. The film changing mechanism includes a take-up roller 9 rotatably mounted inside the device housing 1, which can hold the film strip 8. The mechanism also includes a horizontal plate 12 fixedly mounted inside the device housing 1. Two symmetrically distributed support plates 13 are mounted on the outer side of the horizontal plate 12. A feeding roller 14, located above the take-up roller 9, is rotatably mounted between the two support plates 13. The take-up roller 9 is rotatably mounted between the two support plates 13. The film strip 8 is installed between the take-up roller 9 and the feeding roller 14. Two pressure rollers 15 are rotatably mounted between the two support plates 13, with the two pressure rollers 15 located at the top and bottom of the horizontal plate 12, respectively. Both pressure rollers 15 are in contact with the outer side of the film strip 8. Mounting strips 16 are fixedly installed on both sides of the pressure sensing plate 3. An inner support roller 17 is rotatably mounted between the two mounting strips 16, and the inner support roller 17 is located on the outer side of the pressure sensing plate 3 away from the horizontal plate 12. The inner support roller 17 is in contact with the inner side of the film strip 8, providing support for the inner side of the film strip 8. The two pressure rollers 15 can adhere the film strip 8 to the outer side of the pressure sensing plate 3, so that the film strip 8 wraps around the outer side of the pressure sensing plate 3. When the winding roller 9 rotates, it can wind up the film strip 8, driving the film feeding roller 14 to rotate, so that the film strip inside the film feeding roller 14... 8. Move to the outside of the pressure sensor plate 3. The used film strip 8 is then drawn into the take-up roller 9, facilitating the reloading of the film strip 8 and continuous inspection of the stapler body 2. A drive motor 18 is fixedly installed on the outside of the device housing 1. The output end of the drive motor 18 is connected to one end of the take-up roller 9, enabling the drive motor 18 to drive the take-up roller 9 to rotate and achieve the winding of the film strip 8. A sealing cover 34 is installed on the outside of the device housing 1, and the support plate 13 is bolted to the outside of the horizontal plate 12. The sealing cover 34 can be opened to remove the support plate 13 from the horizontal plate 12, facilitating the removal of the film feeding roller 14 and the take-up roller 9. A positioning rib is fixedly installed on the side of the mounting strip 16 away from the pressure sensing plate 3. Two symmetrically distributed insert frames 35 are fixedly installed on the outer side of the horizontal plate 12, and the two insert frames 35 are respectively fitted on the outer side of the two positioning ribs. The mounting strip 16 on the outer side of the pressure sensing plate 3 can be installed between the two insert frames 35 through the positioning ribs, which improves the convenience of installing the pressure sensing plate 3. The outer side of the device housing 1 is provided with a socket for the mounting strip 16 to slide and limit, so that the mounting strip 16 can be inserted along the socket on the outer side of the device housing 1, which improves the convenience of installing the pressure sensing plate 3. The socket can also provide support for the mounting strip 16.

[0022] Example 2: Please refer to Figures 3-7This embodiment further illustrates Example 1. The material spreading mechanism shown in the figure includes a distributing column 10 rotatably mounted inside the injection cylinder 5. The distributing column 10 can dispense the viscous simulated liquid in batches. The material spreading mechanism also includes multiple receiving grooves 19 centrally symmetrically opened outside the distributing column 10. The outer side of the distributing column 10 is in contact with the inner side of the injection cylinder 5. A driven rod 20 is fixedly mounted on the inner side of the distributing column 10. One end of the driven rod 20 is rotatably mounted on the inner side of the device housing 1. A mounting bracket 21 is fixedly mounted on the inner side of the device housing 1. The mounting bracket 21 is fixedly mounted on the injection cylinder 5. On the outside of the cylinder 5, the mounting bracket 21 provides support for the injection cylinder 5. A discharge frame 22 located directly below the feed hopper 6 is fixedly installed on the outside of the injection cylinder 5. An installation rod 23 is rotatably installed on the inside of the receiving trough 19. Multiple stirring rods are fixedly installed on the outside of the installation rod 23. Gears 24 are fixedly installed at both ends of the installation rod 23. Two symmetrically distributed toothed rings 25 are fixedly installed on the inside of the injection cylinder 5, and the gears 24 mesh with adjacent toothed rings 25. A first synchronous belt 26 is rotatably installed between one end of the driven rod 20 and one end of the winding roller 9. The viscous mold inside the feed hopper 6... The simulated liquid can enter the receiving trough 19 located directly above the distributing column 10. The take-up roller 9 can drive the distributing column 10 to rotate via the first synchronous belt 26, changing the position of the multiple receiving troughs 19 on the distributing column 10, so that the viscous simulated liquid in the feed hopper 6 enters the next receiving trough 19. Furthermore, the distributing column 10 drives the mounting rod 23 to perform a circular motion, causing the gear 24 on the mounting rod 23 to roll along the outer side of the gear ring 25. The gear ring 25 can then drive the mounting rod 23 to rotate via the gear 24, so that the mounting rod 23, through the stirring rod, pushes the viscous simulated liquid in the receiving trough 19. During the stirring process, when the receiving trough 19 is aligned with the discharge frame 22, the viscous simulated liquid in the receiving trough 19 can be smoothly spread from the discharge frame 22 onto the film strip 8. As the film strip 8 moves, multiple receiving troughs 19 sequentially spread the viscous simulated liquid onto the film strip 8, thereby feeding the film strip 8. When the winding roller 9 stops rotating, the distribution column 10 can also seal the feed hopper 6. Both ends of the injection cylinder 5 are fixedly installed with sealing rings 36, and the two sealing rings 36 are in contact with both ends of the distribution column 10, thereby improving the sealing between the outside of the distribution column 10 and the injection cylinder 5.

[0023] Example 3: Please refer to Figures 3-8This embodiment further illustrates other embodiments. The cleaning mechanism shown in the figure includes a receiving hopper 11 disposed inside the device housing 1. The receiving hopper 11 can clean the viscous simulated liquid on the outside of the film strip 8. The cleaning mechanism also includes two support bars 27 symmetrically fixedly installed inside the device housing 1. A feeding cylinder 28 is fixedly installed between the two support bars 27. The bottom of the receiving hopper 11 is fixedly connected to the top of the feeding cylinder 28. A scraper 29 is fixedly installed on the top of the receiving hopper 11. 9 has an arc-shaped structure. The scraper 29 is close to the outer side of the film strip 8 and is located below the horizontal plate 12. The film strip 8 can move along the top of the scraper 29, so that the scraper 29 scrapes off the viscous simulated liquid on the outer side of the film strip 8 and collects it into the collection hopper 11. It enters the feed cylinder 28 along the inner side of the collection hopper 11. A rotating rod 30 is rotatably installed on the inner side of the feed cylinder 28. A spiral scraper 31 is fixedly installed on the outer side of the rotating rod 30, and the outer side of the spiral scraper 31 is in contact with the inner side of the feed cylinder 28. A second synchronous belt 32 is rotatably mounted between one end of the rotating rod 30 and one end of the take-up roller 9. A discharge pipe 33 is fixedly mounted at the end of the feed cylinder 28 away from the second synchronous belt 32. The take-up roller 9 can drive the rotating rod 30 to rotate via the second synchronous belt 32. The rotating rod 30 drives the spiral scraper 31 to rotate along the inner side of the feed cylinder 28, conveying the viscous simulated liquid inside the feed cylinder 28, so that the viscous simulated liquid is discharged from the discharge pipe 33. Side plates 37 are fixedly mounted at both ends of the scraper 29. The length of scraper 29 is greater than the width of film strip 8. When scraper 29 scrapes off the viscous simulated liquid on the outside of film strip 8, side plate 37 can provide guidance for the viscous simulated liquid, so that the viscous simulated liquid can enter the receiving hopper 11. Heater 38 is fixedly installed on the inside of device housing 1, and the top of heater 38 is in contact with the bottom of feed cylinder 28. The outside of feed cylinder 28 is made of heat-conducting material. Heater 38 can heat the viscous simulated liquid collected by feed cylinder 28 to prevent the viscous simulated liquid from clumping.

[0024] Working principle: First, the operator starts the drive motor 18, which drives the take-up roller 9 to rotate. The take-up roller 9 moves the film strip 8, pulling it out from the feed roller 14. Under the pressing guidance of the two pressure rollers 15 and the bending guidance of the inner support roller 17, the film strip 8 can move against the outside of the pressure sensor plate 3. Then, the injection valve 7 is opened, allowing the viscous simulated liquid to be injected into the feed hopper 6 through the hose, and enter the take-up roller located directly above the distribution column 10. Inside the feed trough 19, simultaneously, the take-up roller 9 drives the distribution column 10 to rotate via the first synchronous belt 26, changing the position of multiple feed troughs 19 on the distribution column 10, so that the viscous simulated liquid in the feed hopper 6 enters the next feed trough 19. The distribution column 10 drives the mounting rod 23 to perform a circular motion, causing the gear 24 on the mounting rod 23 to roll along the outer side of the gear ring 25. The gear ring 25 then drives the mounting rod 23 to rotate via the gear 24, so that the mounting rod 23 moves through the stirring rod to the feed trough 19. The viscous simulated liquid in the 9 is stirred. When the receiving trough 19 is aligned with the discharge frame 22 at the bottom of the injection cylinder 5, the viscous simulated liquid in the receiving trough 19 is discharged downward from the discharge frame 22. As the membrane strip 8 moves, multiple receiving troughs 19 sequentially spread the viscous simulated liquid on the membrane strip 8, realizing the feeding of the membrane strip 8, so that the viscous simulated liquid on the outside of the membrane strip 8 is distributed on the top and bottom of the pressure sensing plate 3. At this time, the operator turns off the drive motor 18, the distributing column 10 stops rotating, and the distributing column 10 seals the feeding hopper 6. Thus, the viscous simulated liquid on the outside of the membrane strip 8 can simulate the wet and viscous surgical conditions of human tissue fluid. The operator operates the stapler body 2, so that the staple chamber and anvil of the stapler body 2 clamp the pressure sensing plate 3 through the membrane strip 8. The pressure sensing plate 3 transmits the pressure data to the main unit panel 4, so that the operator can obtain the clamping force of the stapler body 2 through the main unit panel 4, thereby improving the accuracy of the clamping force measurement of the stapler body 2. After the current anastomosis device body 2 is measured, the operator restarts the drive motor 18, causing the take-up roller 9 to rewind the film strip 8. The film strip 8 moves along the top of the scraper 29, causing the scraper 29 to scrape off the viscous simulated liquid on the outside of the film strip 8. The viscous simulated liquid enters the feed cylinder 28 along the inner side of the receiving hopper 11. At the same time, the take-up roller 9 drives the rotating rod 30 to rotate synchronously through the second synchronous belt 32. The rotating rod 30 drives the spiral scraper 31 to rotate along the inner side of the feed cylinder 28, conveying the viscous simulated liquid in the feed cylinder 28, so that the viscous simulated liquid is discharged from the discharge pipe 33, realizing the cleaning and discharge of the viscous simulated liquid. The dividing column 10 can spread the viscous simulated liquid on the film strip 8 again, making it convenient for the operator to measure the clamping force of the next anastomosis device body 2, thus achieving the effect of continuous measurement.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the clamping force of a stapler, characterized in that, include: The device housing (1) and the anastomosis device body (2) are provided. A pressure sensing plate (3) is provided on the inner side of the device housing (1). A main unit panel (4) is installed on the outer side of the device housing (1). An injection cylinder (5) is provided on the inner side of the device housing (1). A feed hopper (6) is installed on the top of the injection cylinder (5). An injection valve (7) for conveying viscous simulated liquid is installed on the top of the device housing (1). The injection valve (7) is connected to the feed hopper (6) through a hose. A thin film strip (8) is wrapped around the outer side of the pressure sensing plate (3). Also includes: A film changing mechanism is used to continuously replace the film strip (8). The film changing mechanism is installed inside the housing (1) of the device. The film changing mechanism includes a take-up roller (9) that is rotatably installed inside the housing (1) of the device. The take-up roller (9) can take in the film strip (8). A spreading mechanism is used to evenly spread the viscous simulated liquid on the film strip (8). The spreading mechanism is installed inside the injection cylinder (5). The spreading mechanism includes a distributing column (10) rotatably installed inside the injection cylinder (5). The distributing column (10) can dispense the viscous simulated liquid in batches. The cleaning mechanism is used to clean the viscous simulated liquid on the outside of the film strip (8). The cleaning mechanism is installed on the inside of the device housing (1). The cleaning mechanism includes a receiving hopper (11) disposed on the inside of the device housing (1). The receiving hopper (11) can clean the viscous simulated liquid on the outside of the film strip (8).

2. The anastomosis device clamping force measuring device according to claim 1, characterized in that: The film changing mechanism further includes a horizontal plate (12) installed inside the housing (1) of the device. Two support plates (13) are installed on the outer side of the horizontal plate (12). A film feeding roller (14) located above the take-up roller (9) is rotatably installed between the two support plates (13). The take-up roller (9) is rotatably installed between the two support plates (13). The film strip (8) is installed between the take-up roller (9) and the film feeding roller (14). Two pressure rollers (15) are rotatably installed between the two support plates (13), and the two pressure rollers (15) are respectively located on the horizontal plate (12). At the top and bottom, both pressure rollers (15) are in contact with the outer side of the film strip (8). Mounting strips (16) are installed on both sides of the pressure sensing plate (3). An inner support roller (17) is rotatably installed between the two mounting strips (16). The inner support roller (17) is located on the outer side of the pressure sensing plate (3) away from the horizontal plate (12). The inner support roller (17) is in contact with the inner side of the film strip (8). A drive motor (18) is installed on the outer side of the device housing (1). The output end of the drive motor (18) is connected to one end of the winding roller (9).

3. The anastomosis device clamping force measuring device according to claim 2, characterized in that: The material spreading mechanism also includes multiple receiving troughs (19) symmetrically arranged on the outside of the material distributing column (10). The outside of the material distributing column (10) is in contact with the inside of the injection cylinder (5). A driven rod (20) is fixedly installed on the inside of the material distributing column (10). One end of the driven rod (20) is rotatably installed on the inside of the device housing (1). A mounting bracket (21) is installed on the inside of the device housing (1). The mounting bracket (21) is installed on the outside of the injection cylinder (5). A discharge frame (22) is installed on the outside of the 5), and an installation rod (23) is rotatably installed on the inside of the receiving trough (19). Multiple stirring rods are installed on the outside of the installation rod (23). Gears (24) are fixedly installed at both ends of the installation rod (23). Two toothed rings (25) are installed on the inside of the injection cylinder (5), and the gears (24) mesh with the adjacent toothed rings (25). A first synchronous belt (26) is rotatably installed between one end of the driven rod (20) and one end of the winding roller (9).

4. The anastomosis device clamping force measuring device according to claim 3, characterized in that: The cleaning mechanism also includes two support bars (27) installed inside the housing (1) of the device. A feed cylinder (28) is installed between the two support bars (27). The bottom of the receiving hopper (11) is fixedly connected to the top of the feed cylinder (28). A scraper (29) is installed on the top of the receiving hopper (11). The scraper (29) has an arc-shaped structure. The scraper (29) is close to the outer side of the film strip (8). The scraper (29) is located below the horizontal plate (12). A rotating rod (30) is rotatably installed on the inner side of the feed cylinder (28). A spiral scraper (31) is installed on the outer side of the rotating rod (30). The outer side of the spiral scraper (31) is in contact with the inner side of the feed cylinder (28). A second synchronous belt (32) is rotatably installed between one end of the rotating rod (30) and one end of the winding roller (9). A discharge pipe (33) is installed on one end of the feed cylinder (28).

5. The anastomosis clamping force measuring device according to claim 2, characterized in that: A sealing cover (34) is installed on the outside of the outer casing (1) of the device, and the support plate (13) is bolted to the outside of the cross plate (12).

6. The anastomosis device clamping force measuring device according to claim 2, characterized in that: A positioning rib is installed on one side of the mounting strip (16), and two insert frames (35) are installed on the outer side of the horizontal plate (12), and the two insert frames (35) are respectively fitted on the outer side of the two positioning ribs.

7. The anastomosis device clamping force measuring device according to claim 2, characterized in that: The outer side of the device housing (1) is provided with an insertion port for the mounting strip (16) to slide in a limited manner.

8. The anastomosis device clamping force measuring device according to claim 3, characterized in that: Both ends of the injection cylinder (5) are equipped with sealing rings (36), and the two sealing rings (36) are in contact with the two ends of the material distribution column (10).

9. The anastomosis device clamping force measuring device according to claim 4, characterized in that: Both ends of the scraper (29) are equipped with side plates (37), and the length of the scraper (29) is greater than the width of the film strip (8).

10. The anastomosis device clamping force measuring device according to claim 4, characterized in that: A heater (38) is installed on the inner side of the device housing (1), and the top of the heater (38) is in contact with the bottom of the feed cylinder (28). The outer side of the feed cylinder (28) is made of heat-conducting material.

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