Reusable stapler with detachable adapter

Abstract

The present invention provides a reusable stapler, comprising: an adapter and a handle; the adapter is detachably connected to the handle, the adapter is a disposable component, the handle can be repeatedly used after sterilization, the handle comprises a frame and a loading and unloading dial, the loading and unloading dial is mounted on the frame, the adapter comprises a central rod sleeve, a pair of protrusions are provided at the end of the central rod sleeve, and the loading and unloading dial is used to control the detachable connection between the adapter and the handle. The handle can be repeatedly used after disinfection, thereby reducing the cost of surgery. The detachable adapter provided by the present invention is reliable, simple, and easy to operate, and can effectively realize the assembly and disassembly of the adapter.

Description

Technical Field

[0001] The invention relates to a medical surgical instrument, in particular to a reusable stapler with a detachable adapter. Background Art

[0002] With the popularity of minimally invasive surgery, laparoscopic cutting staplers have become a conventional surgical instrument. Existing mechanical laparoscopic cutting staplers rely on manual operation during use, which has disadvantages such as unstable cutting, low firing force, low reliability, and laborious operation. They may cause unnecessary pain or trauma to patients during treatment, and also pose health risks to the hand joints of doctors who use the instrument for a long time.

[0003] There are laparoscopic cutting staplers in the domestic market, but they are disposable and discarded after use. Such disposable laparoscopic cutting staplers have a high cost and a high price, which brings an economic burden to patients.

[0004] Reusable staplers have appeared in the foreign market. However, although this reusable laparoscopic cutting stapler has reduced the cost of patient treatment with the device to a certain extent, its core component, the handle, is not suitable for repeated sterilization. It can only be physically isolated from the patient during use and simply wiped after use to avoid cross infection. In this way, when using the device for treatment, the patient is at great risk of cross infection. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a reusable stapler, wherein the handle of the reusable stapler is used in conjunction with a disposable adapter to be suitable for repeated and multiple uses of the handle, thereby reducing surgical costs. The detachable adapter provided by the present invention is reliable, simple, and easy to operate, and can effectively realize the assembly and disassembly of the adapter.

[0006] According to one aspect of the present invention, a reusable stapler is provided for the resection, transection and anastomosis of lung, stomach and intestinal tissues under open or laparoscopic conditions. The stapler is composed of a handle and an adapter, and the handle can be sterilized and reused. The handle is an important operating and execution component of the stapler, which completes the firing or retracting of the knife holder and indicates the stroke and direction of the knife holder. The adapter is installed on the handle during use, and the distal end of the barrel can be loaded with an appropriate stapler. After completing an operation, the adapter is removed from the handle and disposed of as a waste.

[0007] Furthermore, the handle is an electric handle.

[0008] In one embodiment, the adapter and the handle are detachably connected. The adapter is detachably mounted on the handle at a fixed angle. The adapter is a disposable component, and the handle can be reused after being sterilized.

[0009] Furthermore, the adapter includes a center rod sleeve, the end of the center sleeve has a pair of protrusions, the handle includes a frame and a loading and unloading dial button, wherein the loading and unloading dial button is installed on the frame, and the connection between the center rod sleeve and the frame can be controlled by the loading and unloading dial button.

[0010] Furthermore, the frame has a slot hole, which is composed of two frame tube walls and a pair of arc walls.

[0011] Furthermore, the frame also has a first rib, a second rib, and a blocking wall.

[0012] Furthermore, the loading and unloading dial button is provided with a groove, a dial cap and a limiting wall.

[0013] Furthermore, there are two grooves, one groove cooperates with the first rib on the frame, and the other groove cooperates with the second rib. The loading and unloading button reciprocates along the first rib and the second rib on the frame.

[0014] Furthermore, a limiting ring wall is provided on the frame, and the limiting ring wall and the blocking wall limit the reciprocating distance of the loading and unloading dial button.

[0015] Furthermore, the adapter also includes a rotating head, and the center rod sleeve and the rotating head remain relatively fixed during the installation process.

[0016] Furthermore, a loading and unloading button is arranged below the rotating head, and an assembly damping ring is arranged at a corresponding position of the central rod sleeve.

[0017] The adapter is not easy to clean and sterilize, and the handle needs to be sterilized repeatedly. The stapler with a detachable adapter not only allows the high-value core component handle to be reused, reducing the patient's treatment costs, but also greatly reduces the risk of cross-infection of the adapter during use, improves the safety and reliability of the instrument, and has a simple structure, making it more convenient for doctors to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification. They are used to explain the present application together with the specific embodiments of the present application and do not constitute a limitation of the present application.

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0020] Figure 2It is a schematic diagram of the installation of the adapter according to the embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the adapter and handle structure according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of installing and removing the dial button in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of an adapter installed in place according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of a mounting and dismounting button according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the interior of an adapter according to an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of loading and unloading accessories according to an embodiment of the present invention;

[0027] Fig. 9 Schematic diagram of the relative positions of the loading and unloading accessories and the center rod according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present application is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual drawings, and should not be understood as limiting this patent. In order to better illustrate the specific implementation methods of the present application, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods in the present application, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] For the convenience of description, the "proximal end" appearing in the whole text of the present invention refers to the end close to the operator after the operator holds the instrument, and the "distal end" refers to the end away from the operator after the operator holds the instrument.

[0030] The present invention provides a re-sterilizable and reusable stapler for the resection, transection and anastomosis of lung, stomach and intestinal tissues under open or laparoscopic conditions.

[0031] like Figure 1 As shown, the stapler is composed of an adapter 1 and a handle 2. The adapter 1 is detachably mounted on the handle 2 at a fixed angle.

[0032] like Figure 2As shown, the adapter 1 includes a center rod sleeve 11, and the handle 2 includes a frame 21 and a loading and unloading dial button 22. The loading and unloading dial button 22 is installed on the frame 21 to control the connection between the center rod sleeve and the frame.

[0033] like Figure 3 As shown, the adapter 1 includes a central rod sleeve 11, and a pair of protrusions 111 are formed at the end of the central rod sleeve 11. The handle 2 includes a frame 21, and the frame 21 has a slot, which is composed of a frame tube wall 212, a frame tube wall 211 and a pair of arc walls. The frame 21 also has a first rib 215, a second rib 213, a blocking wall 214, and a limiting ring wall 216.

[0034] like Figure 4 As shown, the loading and unloading dial button 22 has a groove 222, a groove 223, a toggle cap 224, and a limiting wall 221. The groove 222 cooperates with the first rib 215 on the frame 21, and the groove 223 cooperates with the second rib 213 on the frame 21. The loading and unloading dial button 22 reciprocates along the first rib 215 and the second rib 213 on the frame 21. The limiting ring wall 216 and the blocking wall 214 on the frame 21 limit the reciprocating distance of the loading and unloading dial button 22.

[0035] During the installation of the adapter 1, the center rod sleeve 11 is deflected at a certain angle and inserted into the frame 21 of the handle 2. Preferably, the fixed angle is 45°. During this process, the protrusion 111 passes through the corresponding groove inside the frame 21 and finally reaches the above-mentioned slot, while pushing the loading and unloading dial button 22 to the blocking wall 214. In the initial position, the protrusion 111 abuts against the frame tube wall 212. Then, the center rod sleeve 11 is rotated in the opposite direction so that the protrusion 111 abuts against the frame tube wall 211. At this time, the loading and unloading dial button 22 automatically rebounds to its original position under the action of the spring force, that is, the loading and unloading dial button 22 abuts against the limiting ring wall 216. At this time, the frame tube wall 211 and the limiting wall 221 on the loading and unloading dial button 22 jointly limit the rotation of the protrusion 111, thereby clamping the center rod sleeve 11, so that the adapter 1 will not rotate and fall off. Figure 5 shown.

[0036] During the disassembly of the adapter 1, the toggle cap 224 is pushed backwards to make the assembly and disassembly button 22 abut against the blocking wall 214, pressing the assembly and disassembly button 22. Then, the center rod sleeve 11 is rotated to make the protrusion 111 abut against the frame tube wall 212 again, and the entire center rod sleeve 11 is withdrawn from the frame 21. Finally, the assembly and disassembly button 22 is released, and the adapter 1 is disassembled from the handle 2.

[0037] During the use of the product, the center rod sleeve 11 and the rotating head 12 should be able to rotate freely. However, during the installation process, the center rod sleeve 11 and the rotating head 12 should remain relatively fixed so that the torque generated by holding the rotating head 12 can be transmitted to the center rod sleeve 11, so that the adapter 1 can be effectively installed on the handle 2. In the present invention, a mounting and disassembly button 13 is provided below the rotating head 12, and an assembly damping ring 14 is provided at the corresponding position of the center rod sleeve 11, such as Figure 6 and Figure 7 As shown. During the installation of the adapter 1, when the finger presses the mounting and disassembly button 13, the center rod sleeve 11 and the rotating head 12 remain relatively fixed under the friction between the mounting and disassembly button 13 and the assembly damping ring 14, so that the center rod sleeve 11 can rotate effectively to complete the installation. After the installation is completed, the mounting and disassembly button 13 is released, and the mounting and disassembly button 13 and the assembly damping ring 14 are separated under the action of the spring 15, and the center rod sleeve 11 and the rotating head 12 resume relative rotational freedom.

[0038] During use of the product, the center rod 16 and the center rod sleeve 11 should have axial freedom. However, during installation, the center rod 16 and the center rod sleeve 11 should remain relatively axially fixed so that the center rod 16 has a definite position and can be reliably installed on the handle 2.

[0039] In the present invention, a mounting and dismounting accessory 17 is provided at the front end of the adapter 1, such as Figure 8 shown.

[0040] The mounting and disassembly attachment 17 is assembled on the adapter 1 at the factory. A slot is designed in the mounting and disassembly attachment 17, and the end of the center rod 16 is fixed in the slot, thereby determining the axial position of the center rod 16 in the adapter 1. Fig. 9 As shown. During the process of installing the adapter 1 to the handle 2, the mounting and disassembly attachment 17 ensures that the center rod 16 is in a clear axial position, so that the center rod 16 can be installed in a suitable position. After the installation is completed, the mounting and disassembly attachment 17 is removed, and a suitable nail magazine can be installed.

[0041] Although specific embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A reusable stapler, comprising: An adapter (1) and a handle (2); the adapter (1) and the handle (2) are detachably connected, and the adapter (1) is a disposable component, and the handle (2) can be repeatedly used after being sterilized; The handle (2) comprises a frame (21) and a loading and unloading dial button (22), wherein the loading and unloading dial button (22) is mounted on the frame (21); The adapter (1) comprises a central rod sleeve (11), and the end of the central rod sleeve (11) has a pair of protrusions (111); the loading and unloading knob (22) controls the detachable connection between the central rod sleeve (11) and the frame (21); The frame (21) has a slot hole, and the slot hole is composed of a first frame tube wall (211), a second frame tube wall (212), and a pair of arc walls; The frame (21) is further provided with a first rib (215), a second rib (213) and a blocking wall (214); The loading and unloading button (22) has a first groove (222), a second groove (223), a toggle cap (224), and a limiting wall (221), wherein the first groove (222) cooperates with the first rib (215) on the frame (21), and the second groove (223) cooperates with the second rib (213) on the frame (21); The frame (21) is also provided with a limiting ring wall (216); During the installation of the adapter (1), the center rod sleeve (11) is deflected at a certain angle and inserted into the frame (21) of the handle (2). During this process, the protrusion (111) passes through the corresponding groove inside the frame (21) and finally reaches the above-mentioned slot. At the same time, the loading and unloading button (22) is pushed against the blocking wall (214). At the initial position, the protrusion (111) abuts against the second frame tube wall (212). Then, the center rod sleeve (21) is rotated in the opposite direction. 11), so that the protrusion (111) abuts against the first frame tube wall (211), and the loading and unloading button (22) automatically rebounds to its original position under the action of the spring force, that is, the loading and unloading button (22) abuts against the limiting ring wall (216), and the first frame tube wall (211) and the limiting wall (221) on the loading and unloading button (22) jointly limit the rotation of the protrusion (111), thereby clamping the center rod sleeve (11) to prevent the adapter (1) from rotating and falling off.

2. The reusable stapler according to claim 1, characterized in that: The loading and unloading button (22) reciprocates back and forth along the first rib (215) and the second rib (213) on the frame (21).

3. The reusable stapler according to claim 1, characterized in that: The limiting ring wall (216) and the blocking wall (214) on the frame (21) limit the reciprocating distance of the loading and unloading dial button (22).

4. The reusable stapler according to claim 1, characterized in that: During the installation of the adapter (1), the central rod sleeve (11) is deflected by 45° and inserted into the frame (21) of the handle (2).

5. The reusable stapler according to claim 4, characterized in that: During the disassembly of the adapter (1), the toggle cap (224) is pushed backwards so that the loading and unloading button (22) abuts against the blocking wall (214), and the loading and unloading button (22) is pressed. Then, the center rod sleeve (11) is rotated so that the protrusion (111) abuts against the second frame tube wall (212) again. At this time, the entire center rod sleeve (11) is withdrawn from the frame (21), and finally the loading and unloading button (22) is released, and the adapter (1) is removed from the handle (2).

6. The reusable stapler according to claim 1, characterized in that: The adapter further comprises a rotating head (12), and the central rod sleeve (11) and the rotating head (12) remain relatively fixed during the installation process so that the torque generated by holding the rotating head (12) can be transmitted to the central rod sleeve (11), so that the adapter (1) can be effectively installed on the handle (2).

7. The reusable stapler according to claim 6, characterized in that: A loading and unloading button (13) is provided below the rotating head (12), and an assembly damping ring (14) is provided at a corresponding position of the central rod sleeve (11).

8. The reusable stapler according to claim 7, characterized in that: When the adapter (1) is being installed, the mounting and disassembly button (13) is pressed by a finger, and under the action of the friction force of the mounting and disassembly button (13) and the assembly damping ring (14), the center rod sleeve (11) and the rotating head (12) remain relatively fixed, so that the center rod sleeve (11) can be effectively rotated, completing the installation.

9. The reusable stapler according to claim 7, characterized in that: When the adapter (1) is installed, the mounting and disassembly button (13) is released, and under the action of the spring (15), the mounting and disassembly button (13) is disengaged from the damping ring (14) on which it is assembled, and the center rod sleeve (11) and the rotating head (12) regain relative rotational freedom.

Images