Correcting device for safety limiting piece of anastomat handle support

Abstract

The utility model provides an anastomat handle support safety limiting piece correcting device which comprises an upper supporting plate, and a positioning clamp used for clamping and fixing a fixed handle and a movable handle is arranged on the upper supporting plate. A push-pull module is arranged below the upper supporting plate and comprises a correction base and a push-pull mechanism driving the correction base to do push-pull action, and a correction clamping block clamping the unlocking end of the safety limiting piece protrudes out of the correction base. Correction grooves for the correction clamping blocks to be exposed and move in a push-pull mode are formed in the upper supporting plate corresponding to the correction clamping blocks and the push-pull direction of the correction clamping blocks. The device is reasonable in structural design, the unlocking end of the safety limiting piece is clamped and driven to perform angle deflection through the correction clamping block of the push-pull module, angle deflection correction is effectively performed on the unlocking end of the safety limiting piece after the fixed handle, the movable handle and the safety limiting piece are assembled, the correction process is convenient and rapid, and the working efficiency is improved. Accurate, reliable and stable assembly at the position of the handle support of the anastomat is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, particularly the field of staplers, and especially to a stapler handle support safety limiting plate correction device. Background Technology

[0002] Disposable tubular staplers are widely used medical devices in digestive tract reconstruction surgeries, including those involving the esophagus, stomach, and intestines, for end-to-end, end-to-side, and side-to-side anastomoses. A typical disposable tubular stapler consists of an anvil, staple cartridge assembly, curved sleeve, fixed handle, safety button, movable handle, adjusting nut, staples, circular blade, and blade pad. During assembly, a safety stop plate is installed between the fixed and movable handles. During surgery, the surgeon must ensure that each firing of the stapler is accurate and safe. The safety stop plate limits the interaction between the movable and fixed handles, ensuring the stability and controllability of the stapler during surgery. This helps the surgeon control the stapler more accurately, improving surgical precision and safety, and preventing secondary firing due to misoperation, thus avoiding unnecessary harm to the patient.

[0003] Currently, in existing conventional disposable tubular staplers, the structure of the fixed handle, movable handle, and safety limiting plate is typically as follows: Figure 1 As shown. The movable handle is mounted on the fixed handle, and the movable handle has a safety limit plate. One end of the safety limit plate engages with the safety mechanism of the fixed handle. When the anastomosis device is activated, the safety limit plate must first be engaged with the safety mechanism of the fixed handle to unlock it before the activation operation can proceed normally. If the angle and position of the safety limit plate are incorrect and it cannot be successfully unlocked with the safety mechanism of the fixed handle, the activation of the movable handle will be invalid, thus preventing secondary activation due to operational errors.

[0004] However, for existing disposable tubular staplers, there are always errors in processing and assembly. These processing and assembly errors may cause the front end of the safety limit plate to change angle, which may prevent the front end of the safety limit plate from properly engaging with the safety mechanism of the fixed handle for limit locking, or may cause the device to fail to unlock after engaging with the safety mechanism.

[0005] Therefore, it is necessary to design a correction device to address the error in the front angle of the safety limit plate, so that the error can be effectively corrected after the safety limit plate is assembled with the fixed handle and the movable handle. Utility Model Content

[0006] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a safety limiting plate correction device for a stapler handle bracket, which can correct the angle of the safety limiting plate installed on the fixed handle and the movable handle. The correction process is convenient and quick, so that it can cooperate well with the movable handle and the fixed handle, and the safety locking is reliable and the unlocking is smooth.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a safety limiting plate correction device for a stapler handle bracket, used to correct the unlocking end of the safety limiting plate in the assembled fixed handle, movable handle and safety limiting plate. The movable handle is assembled on the fixed handle. One end of the safety limiting plate is the fixed end and the other end is the unlocking end. The fixed end of the safety limiting plate is fixedly assembled with the movable handle, and the unlocking end extends into the fixed handle. The correction device includes a support upper plate, on which a positioning clamp is provided to clamp and fix the fixed handle and the movable handle. A push-pull module is provided under the support upper plate. The push-pull module includes a correction base and a push-pull mechanism that drives the correction base to push and pull. The correction base has a correction clamping block protruding from it to clamp the unlocking end of the safety limiting plate. The support upper plate has a correction groove corresponding to the correction clamping block and its push-pull direction for the correction clamping block to be exposed and pushed and pulled.

[0008] In the above solution, a push-pull mechanism is used to calibrate the safety limit plate of the stapler handle bracket, which is assembled from the fixed handle, movable bracket, and safety limit plate. By driving the calibration clamp to push and pull, the unlocking end of the safety limit plate can be clamped and pulled, thereby changing the angle position of the unlocking end of the safety limit plate, which facilitates the calibration of the angle position of the unlocking end according to positioning requirements.

[0009] Furthermore, the correction device includes a support structure comprising an upper support plate, a lower support plate, and a support column, with the support column fixedly positioned between the upper and lower support plates. The push-pull module is mounted on the lower support plate. The space formed by the upper and lower support plates supported by the support column provides installation space for the push-pull mechanism.

[0010] Furthermore, the push-pull mechanism includes a push-pull bracket, a slider, a slide rail, and a lead screw assembly. The push-pull bracket is fixed to the lower support plate, the slide rail is fixed to the push-pull bracket, and the slider is slidably connected to the push-pull bracket. The lead screw assembly includes a correction lead screw and a correction nut seat fitted on the correction lead screw. The correction base is fixed to the upper end of the correction nut seat, and the lower end of the correction nut seat is fixed to the slider. A correction handwheel that drives the lead screw to rotate is connected to the end of the correction lead screw. The correction lead screw, slide rail, and correction groove are parallel in length. The rotational motion is converted into linear motion of the correction nut seat by the lead screw, nut, slide rail, and slider, which drives the correction base to perform linear reciprocating motion, thereby realizing the correction and adjustment operation of the unlocking end of the clamping safety limit piece.

[0011] Furthermore, a digital micrometer is also provided at the lower end of the upper support plate. A connecting plate is fixed to the micrometer screw of the digital micrometer, and the other end of the connecting plate is fixed to the calibration nut seat. The digital micrometer detects and reads the movement data of the calibration nut seat. Through the design of the digital micrometer, the calibration value can be displayed in real time, which is convenient for batch operations and provides calibration values ​​for the subsequent anastomosis device handle bracket.

[0012] Furthermore, the number of the correction clamps is two, and the two correction clamps are opened to form an angle, and the safety limiting piece is clamped by the angle.

[0013] Furthermore, the surface of the correction clamping block corresponding to the angled end is an arc surface. Through this arc surface design, when the correction clamping block moves linearly, it can push the end of the safety limiting piece it holds, causing it to smoothly undergo angular deflection.

[0014] Furthermore, the positioning fixture includes a front quick clamp, a rear abutment clamp, and a handle abutment block; the front quick clamp clamps the front end of the fixed handle, the rear abutment clamp is located at the rear end of the fixed handle and abuts and limits the rear end face of the fixed handle, and the handle abutment block is located on the side of the movable handle and clamps and positions the movable handle.

[0015] The beneficial effects of this utility model are that the safety limit plate correction device for the stapler handle bracket provided by this utility model has a reasonable structural design. Through the correction clamp of the push-pull module, it clamps and drives the unlocking end of the safety limit plate to deflect at an angle. It effectively corrects the angle deflection of the unlocking end of the safety limit plate after the fixed handle, movable handle and safety limit plate are assembled. The correction process is convenient and quick, ensuring that the assembly at the position of the stapler handle bracket is accurate, reliable and stable. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1This is a schematic diagram of the structure of the stapler handle support (with part of the fixed handle removed).

[0018] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0019] Figure 3 yes Figure 2 Top view.

[0020] Figure 4 yes Figure 2 A schematic diagram after removing part of the fixed handle.

[0021] Figure 5 This is a perspective view of an embodiment of the present invention (with part of the handle removed).

[0022] Figure 6 yes Figure 5 Enlarged diagram of point A in the middle.

[0023] Figure 7 This is a perspective view of the calibration base, calibration clamp, and safety limiting plate in an embodiment of this utility model.

[0024] In the diagram: 1. Fixed handle; 2. Safety limit plate; 3. Movable handle; 4. Support column; 5. Upper support plate; 6. Connecting plate; 7. Micrometer; 8. Calibration nut seat; 9. Calibration screw; 10. Calibration handwheel; 11. Push-pull bracket; 12. Slide rail; 13. Slider; 14. Lower support plate; 15. Handle clamping block; 16. Front quick clamp; 17. Calibration clamping block; 18. Calibration base; 19. Rear abutment clamp; 20. Calibration groove. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0026] Example 1:

[0027] like Figure 2 The above-described device is a calibration device for the safety limiting plate of a stapler handle bracket, which is one embodiment of this utility model. This calibration device is used to calibrate the safety limiting plate 2 of the assembled stapler handle bracket.

[0028] like Figure 1As shown, the stapler handle bracket to be calibrated in this embodiment includes a fixed handle 1, a movable handle 3, and a safety limiting plate 2. The movable handle 3 is mounted on the fixed handle 1. One end of the safety limiting plate 2 is a fixed end, and the other end is an unlocking end. The fixed end of the safety limiting plate 2 is fixedly mounted to the movable handle 3, while the unlocking end extends into the fixed handle 1. This embodiment requires calibration of the safety limiting plate 2 on the assembled stapler handle bracket, adjusting the angle of its unlocking end so that the safety limiting plate 2 can effectively lock and unlock with the fixed handle 1 during operation.

[0029] like Figures 2 to 4 As shown, the calibration device includes a support structure, which includes an upper support plate 5, a lower support plate 14, and a support column 4. The support column 4 is fixedly supported between the upper support plate 5 and the lower support plate 14. The upper support plate 5 is provided with a positioning fixture that clamps and fixes the fixed handle 1 and the movable handle 3. The push-pull module is set on the lower support plate 14.

[0030] like Figure 2 and Figure 3 As shown, the positioning fixture includes a front quick clamp 16, a rear abutment clamp 19, and a handle abutment block 15. The clamp of the front quick clamp 16 holds the front end of the fixed handle 1, while the rear abutment clamp 19 is located at the rear end of the fixed handle 1 and abuts and limits the rear end face of the fixed handle 1. The handle abutment block 15 is located on the side of the movable handle 3 and clamps and positions the movable handle 3. In the calibration device provided in this embodiment, the push-pull module performs calibration under the premise that the positioning fixture effectively clamps the stapler handle bracket. On the support plate 5, the positioning clamps of the front quick clamp 16, the rear abutment clamp 19, and the handle abutment block 15 form a stable operating plane, which facilitates the provision of a reference plane for subsequent calibration.

[0031] like Figures 2 to 6 As shown, the push-pull module includes a calibration base 18 and a push-pull mechanism that drives the calibration base 18 to push and pull. A calibration clamping block 17 with an unlocking end for the clamping safety limiting piece 2 protrudes from the calibration base 18. Preferably, as... Figure 7 As shown, in this embodiment, there are two correction clamps 17, which are arranged at an angle and in a figure-eight shape. The surface of the correction clamp 17 corresponding to the end of the angle is an arc surface 21. The unlocking end of the safety limiting piece 2 is limited by the two arc surfaces 21 at the end of the angle. When the correction clamp 17 is driven to move linearly by the pushing mechanism, the arc surface 21 on one side abuts against the safety limiting piece 2, causing it to deform along the movement direction of the correction clamp 17, so that it smoothly changes angle, thereby achieving the correction effect.

[0032] Specifically, the push-pull action of the calibration base 18 is achieved through a push-pull mechanism. For example... Figure 2As shown, the push-pull mechanism includes a push-pull bracket 11, a slider 13, a slide rail 12, and a lead screw assembly. The push-pull bracket 11 is fixed to the lower support plate 14, the slide rail 12 is fixed to the push-pull bracket 11, the slider 13 is slidably connected to the push-pull bracket 11, and the lead screw assembly includes a correction lead screw 9 and a correction nut seat 8 fitted on the correction lead screw 9. A correction base 18 is fixed to the upper end of the correction nut seat 8, and the lower end of the correction nut seat 8 is fixed to the slider 13. The upper support plate 5 has a correction groove 20 corresponding to the correction clamp 17 and its push-pull direction, allowing the correction clamp 17 to protrude and move. A correction handwheel 10 that drives the lead screw to rotate is connected to the end of the correction lead screw 9. The length directions of the correction lead screw 9, the slide rail 12, and the correction groove 20 are parallel.

[0033] When the push-pull mechanism operates, the rotational motion is converted into linear motion of the calibration nut seat 8 by the lead screw nut, slide rail 12, and slider 13, which drives the calibration base 18 to perform linear reciprocating motion as needed. When the calibration base 18 moves, it synchronously drives the calibration clamp 17 above it to move. The calibration clamp 17 clamps the unlocking end of the safety limit plate 2, forcing the unlocking end to deform relative to the fixed end, thereby realizing the calibration and adjustment operation of clamping the unlocking end of the safety limit plate 2.

[0034] This calibration device design uses the calibration clamp 17 of the push-pull module to clamp and drive the unlocking end of the safety limit plate 2 to deflect at an angle. After the stapler handle bracket is assembled, the angle deflection of the unlocking end of the safety limit plate 2 is calibrated. The calibration operation is convenient and quick, ensuring accurate and reliable assembly at the position of the stapler handle bracket.

[0035] Example 2:

[0036] like Figure 2 The above-described device for correcting the safety limiting plate of a stapler handle bracket is a second embodiment of this utility model.

[0037] Based on Example 1, Example 2 introduces a digital micrometer 7, which provides data display for calibration operations during batch calibration.

[0038] Specifically, such as Figure 2 As shown, a digital micrometer 7 is installed at the lower end of the upper support plate 5. A connecting plate 6 is fixed to the micrometer screw of the digital micrometer 7, and the other end of the connecting plate 6 is fixed to the calibration nut seat 8. The digital micrometer 7 detects and reads the movement data of the calibration nut seat 8. Through the design of the digital micrometer 7, the calibration value can be displayed in real time, facilitating batch operations and providing calibration values ​​for subsequent anastomosis device handle supports. In the actual design, to further facilitate the measurement of calibration data, the micrometer screw of the digital micrometer 7 is set parallel to the calibration lead screw 9. During batch calibration of anastomosis device handle supports, the calibration value can be displayed in real time.

[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for calibrating a safety limiting plate of a stapler handle support, used to calibrate the unlocking end of the safety limiting plate (2) in an assembled fixed handle (1), movable handle (3), and safety limiting plate (2), wherein the movable handle (3) is mounted on the fixed handle (1), one end of the safety limiting plate (2) is a fixed end, and the other end is an unlocking end; the fixed end of the safety limiting plate (2) is fixedly mounted to the movable handle (3), and the unlocking end extends into the fixed handle (1), characterized in that: It includes a support plate (5), and the support plate (5) is provided with a positioning fixture for clamping and fixing the fixed handle (1) and the movable handle (3); The upper support plate (5) is provided with a push-pull module. The push-pull module includes a correction base (18) and a push-pull mechanism that drives the correction base (18) to push and pull. The correction base (18) has a correction clamp (17) with an unlocking end for clamping the safety limit piece (2). The support plate (5) has a correction groove (20) on it corresponding to the correction clamp (17) and its push-pull direction, which allows the correction clamp (17) to be exposed and pushed and pulled.

2. The stapler handle bracket safety limiting plate correction device as described in claim 1, characterized in that: The system includes a support structure, which includes an upper support plate (5), a lower support plate (14), and a support column (4). The support column (4) is fixedly supported between the upper support plate (5) and the lower support plate (14). The push-pull module is installed on the lower support plate (14).

3. The stapler handle bracket safety limiting plate correction device as described in claim 1, characterized in that: The push-pull mechanism includes a push-pull bracket (11), a slider (13), a slide rail (12), and a lead screw device; the push-pull bracket (11) is fixed on the lower support plate (14), the slide rail (12) is fixed on the push-pull bracket (11), the slider (13) is slidably connected to the push-pull bracket (11), the lead screw device includes a correction lead screw (9) and a correction nut seat (8) fitted on the correction lead screw (9), the correction base (18) is fixed on the upper end of the correction nut seat (8), and the lower end of the correction nut seat (8) is fixed to the slider (13); the end of the correction lead screw (9) is connected to a correction handwheel (10) that drives the lead screw to rotate; the length direction of the correction lead screw (9), the slide rail (12), and the correction groove (20) is parallel.

4. The stapler handle bracket safety limiting plate correction device as described in claim 1, characterized in that: The lower end of the support plate (5) is also provided with a digital micrometer (7). A connecting plate (6) is fixed on the micrometer screw of the digital micrometer (7). The other end of the connecting plate (6) is fixed to the calibration nut seat (8). The digital micrometer (7) detects and reads the movement data of the calibration nut seat (8).

5. The stapler handle bracket safety limiting plate correction device as described in claim 1, characterized in that: The number of the correction clamps (17) is two, and the two correction clamps (17) are opened to form an angle, and the safety limiting piece (2) is clamped by the angle.

6. The stapler handle bracket safety limiting plate correction device as described in claim 5, characterized in that: The surface of the correction clamp (17) corresponding to the end of the included angle is an arc surface (21).

7. The stapler handle bracket safety limiting plate correction device as described in claim 1, characterized in that: The positioning fixture includes a front quick clamp (16), a rear abutment clamp (19), and a handle abutment block (15); the front quick clamp (16) clamps the front end of the fixed handle (1), the rear abutment clamp (19) is set at the rear end of the fixed handle (1) and abuts and limits the rear end face of the fixed handle (1), and the handle abutment block (15) is set on the side of the movable handle (3) and clamps and positions the movable handle (3).

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