Battery assembly state switching mechanism of disposable endoscope electric cutting anastomat

Abstract

The utility model discloses a battery assembly state switching mechanism of a disposable endoscope electric cutting anastomat. The battery assembly state switching mechanism comprises an anastomat body, a battery assembly, a guide pin, a rotating shaft, a clamping key, an insulating sleeve, a knob, a positioning sleeve, a first limiting pin, an easily-broken connecting column, a conductive pressing block, a guide column, a spring, a wire and a second limiting pin. According to different positions of the rotating shaft and the conductive pressing block, switching between the power-off state and the power-on state of the anastomat body can be achieved, a user can know whether the anastomat is started or not by observing the state of the easily-broken connecting column, and the anastomat has the advantage of being easy to observe and judge; under the action of the spring, the conductive pressing block and the electrode plate can be in compressed contact, the electrified contact area of the conductive pressing block and the electrode plate is increased, the problem of heating caused by overlarge current at the contact position is avoided, and normal use of the anastomat is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of disposable laparoscopic electric cutting staplers, and in particular relates to a battery assembly state conversion mechanism for disposable laparoscopic electric cutting staplers. Background Art

[0002] Laparoscopic staplers are one of the important instruments for laparoscopic surgery. They replace traditional manual suturing and use titanium staples to separate or staple tissues. They are easy and quick to operate, greatly shortening the operation time. Laparoscopic staplers make it easier to perform anastomosis that is difficult to perform manually in a narrow surgical field or a deep area. They are accurate, firm and reliable, and significantly reduce the incidence of anastomotic fistulas. Electric laparoscopic staplers use power sensors to cut off tissue between two staples while firing the staples. Electric laparoscopic staplers can drive in three rows of staggered staples on both sides, and are equipped with disposable lithium battery packs. Since the laparoscopic electric cutting stapler is disposable, it is necessary to design a mechanism to prevent it from being accidentally started. Its accidental start is usually divided into two ways: operating the switch lock and the electrode sheet of the battery assembly being insulated and disconnected from the stapler body through an insulating sheet. The switch lock can only limit the operation of the switch. After resetting the switch lock after use, the user cannot determine whether the stapler has been started. When the insulating sheet method is used, when the pressing force between the electrode sheet of the battery assembly and the circuit metal sheet of the stapler body is too large, the insulating sheet may be difficult to pull out. When the pressing force between the electrode sheet of the battery assembly and the circuit metal sheet of the stapler body is too small, the insulating sheet may be easily dislodged by vibration force. After the insulating sheet is dislodged, there may be a gap between the electrode sheet of the battery assembly and the circuit metal sheet of the stapler body due to the small pressing force. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a battery assembly state conversion mechanism of a disposable laparoscope electric cutting stapler which can prevent accidental touch.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a battery assembly state conversion mechanism for a disposable laparoscopic electric cutting stapler, comprising a stapler body, a battery assembly, a guide pin, a rotating shaft, a key, an insulating sleeve, a knob, a positioning sleeve, a first limit pin, a breakable connecting column, a conductive voltage block, a guide column, a spring, a wire and a second limit pin. A slot is provided at the rear end of the stapler body, the guide pin is fixedly installed in the slot, a guide hole is provided at the front end of the battery assembly, the battery assembly is slidably installed in the slot at the rear end of the stapler body, the guide pin is slidably embedded in the guide hole, the rotating shaft is rotatably installed at the upper and lower parts of the slot, the positioning sleeve is sealed and fixedly embedded on the stapler body, the rotating shaft and the positioning sleeve can rotate relatively, the key is fixedly installed on the top of the rotating shaft, the knob is slidably sleeved on the top of the rotating shaft, and the key limit is provided. The control knob rotates relative to the rotating shaft, and the upper and lower ends of the breakable connecting column are fixedly connected to the knob and the positioning sleeve respectively. The upper ends of the two first limit pins are fixedly installed on the knob, and the positioning sleeve is provided with a limit hole matching the first limit pin. The inner end surface of the battery assembly is provided with two electrode sheets, and the two insulating sleeves are fixedly sleeved and installed on the rotating shaft. A receiving groove is provided on one side of the insulating sleeve, and the conductive voltage block is slidably installed in the receiving groove. The left end of the guide column is fixedly installed in the receiving groove, and the right end of the guide column is slidably installed in the conductive voltage block. The spring is sleeved and installed on the guide column, and the two ends of the spring act on the rotating shaft and the conductive voltage block respectively. The upper and lower parts of the insulating sleeve are provided with an oblong hole connected to the receiving groove, and the second limit pin is slidably installed in the oblong hole. The lower part of the second limit pin is also fixedly connected to the conductive voltage block, and the conductive voltage block passes through the control module of the anastomosis device body.

[0005] Preferably, the outer ends of the guide pin and the first limit pin are both configured as frustum-shaped structures.

[0006] Preferably, a status identification point is provided on the top of the knob.

[0007] Preferably, a non-slip rubber sleeve is fixedly mounted on the first limiting pin.

[0008] Preferably, the outer surface of the knob is longitudinally provided with strip-shaped anti-slip grooves.

[0009] Compared with the prior art, the utility model has the following advantages: the conversion mechanism can realize the switching of the two states of the stapler body, namely, the power-off state and the power-on state, according to the different positions of the rotating shaft and the conductive voltage block. The user can know whether the stapler has been started and used by observing the state of the easily breakable connecting column. It has the advantage of being easy to observe and judge. After the rotating shaft and the conductive voltage block are rotated and the conductive voltage block contacts the electrode sheet and is energized, the conductive voltage block and the electrode sheet can be tightly pressed into contact under the action of the spring, thereby increasing the energized contact area between the two and avoiding the problem of heating caused by excessive current at the contact position, so as to ensure the normal use of the stapler. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings.

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 yes Figure 1 Enlarged structural diagram at L.

[0013] Figure 3 yes Figure 2 Enlarged structural diagram at M.

[0014] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure at N. DETAILED DESCRIPTION

[0015] The utility model is described in detail below in conjunction with specific implementation methods:

[0016] like Figures 1 to 4The battery assembly state conversion mechanism of the disposable laparoscopic electric cutting stapler shown in the figure comprises a stapler body 1, a battery assembly 2, a guide pin 3, a rotating shaft 4, a key 41, an insulating sleeve 5, a knob 6, a positioning sleeve 62, a first limit pin 63, a breakable connecting column 64, a conductive voltage block 7, a guide column 8, a spring 81, a wire 9 and a second limit pin 10. The stapler body 1 is provided with a slot 11 at the rear end, and the guide pin 3 is fixedly installed in the slot 11. The battery assembly 2 is provided with a guide hole 31 at the front end, and the battery assembly 2 is slidably installed in the slot 11 at the rear end of the stapler body 1. An annular groove 12 is provided in the slot 11, and the battery assembly 2 is provided with an annular protrusion, which is embedded in the annular groove 12 to improve the stability of the battery assembly 2 installed in the slot 11. The guide pin 3 is slidably embedded in the guide hole 31, and the rotating shaft 4 is rotatably installed in the upper and lower parts of the slot 11. The positioning sleeve 62 is sealed and fixedly embedded in the stapler body 1, and the rotating shaft 4 and the positioning sleeve 62 can rotate relative to each other. The card key 41 is fixedly installed on the top of the rotating shaft 4, and the knob 6 is slidably sleeved and installed on the top of the rotating shaft 4. The card key 41 limits the relative rotation of the knob 6 and the rotating shaft 4. The upper and lower ends of the breakable connecting column 64 are fixedly connected to the knob 6 and the positioning sleeve 62 respectively. The upper ends of the two first limiting pins 63 are fixedly installed on the knob 6. The positioning sleeve 62 is provided with limiting holes that match the first limiting pins 63. The inner end surface of the battery assembly 2 has two electrode sheets 21. Two insulating sleeves 5 are fixedly sleeved and installed on the rotating shaft 4. A receiving groove 50 is provided on one side of the insulating sleeve 5. The conductive voltage block 7 is slidably installed in the receiving groove 50. The left end of the guide column 8 is fixedly installed in the receiving groove 50. The right end of the guide column 8 is slidably installed in the conductive voltage block 7. The spring 81 The second limiting pin 10 is slidably installed in the oblong hole 410, and the second limiting pin 10 cooperates with the oblong hole 410 to limit, so as to prevent the conductive voltage block 7 from falling out of the accommodating groove 50 of the insulating sleeve 5 under the operation of the spring 81. The lower part of the second limiting pin 10 is also fixedly connected to the conductive voltage block 7, and the conductive voltage block 7 is controlled by the control module of the stapler body 1, and the control module controls the operation of the stapler body.

[0017] The outer ends of the guide pin 3 and the first limit pin 63 are both configured as frustum-shaped structures, so that the guide pin 3 and the first limit pin 63 can be slidably embedded in the guide hole 31 and the limit hole on the positioning sleeve 62 respectively.

[0018] A status identification point corresponding to the position of the conductive voltage block 7 is arranged on the top of the knob 6, and two reference identification points matching the status identification points are arranged on the top of the stapler body 1. When the initial state of the status identification point is longitudinally aligned with the reference identification point on the left, the conductive voltage block 7 is at the leftmost position. When the status identification point rotates to the right with the knob 6, the conductive voltage block 7 is at the rightmost position and is pressed into contact with the electrode sheet 21 to be energized.

[0019] A non-slip rubber sleeve is fixedly installed on the first limit pin 63. After the first limit pin 63 is embedded in the limit hole on the positioning sleeve 62, the friction between the non-slip rubber sleeve and the inner wall of the limit hole can prevent the first limit pin 63 from easily falling out of the limit hole on the positioning sleeve 62, thereby preventing the rotating shaft 4 and the knob 6 from rotating.

[0020] The outer surface of the knob 6 is longitudinally provided with anti-skid stripes to increase friction and facilitate the user to rotate the knob 6.

[0021] Before the stapler is used, the conductive voltage block 7 is located at the leftmost position, and the stapler body 1 and the battery assembly 2 are in an open circuit state. At this time, the easily breakable connection column 64 is in a complete state, and the user can visually judge whether the stapler is in use based on the easily breakable connection column 64. When the stapler is in use, the user rotates the shaft 4 180° through the knob 6 to make the conductive voltage block 7 press against the electrode sheet 21 of the battery assembly 2. The front and rear sides of the battery assembly 2 do not block the electrode sheet 21. The front and rear ends of the electrode sheet 21 are both arc surface structures, and the middle position of the electrode sheet 21 is set to a plane structure. The front and rear ends of the conductive voltage block 7 are both arc surface structures, and the middle position of the conductive voltage block 7 is set to a plane structure. When the shaft 4 is rotated, the conductive voltage block 7 contacts the electrode sheet 21 through the arc surface. The structure is transitional, and the planar structure of the conductive voltage block 7 and the electrode sheet 21 is crimped and energized, which can increase the energized contact area between the two and avoid heating problems caused by excessive current at the contact position. Under the action of the spring 81, it can ensure that the conductive voltage block 7 and the electrode sheet 21 are in tight contact, and then the anastomosis device body 1 is energized and works normally through the wire 9. At this time, the knob 6 is pressed down, and the key 41 is still slidably installed in the knob 6, so that the first limit pin 63 is slidably embedded in the limit hole of the positioning sleeve 62, so that the combination of the knob 6 and the rotating shaft 4 rotates.

Claims

1. A battery assembly state conversion mechanism for a disposable laparoscopic electric cutting stapler, characterized in that: The stapler comprises a stapler body (1), a battery assembly (2), a guide pin (3), a rotating shaft (4), a key (41), an insulating sleeve (5), a knob (6), a positioning sleeve (62), a first stop pin (63), an easily breakable connecting column (64), a conductive voltage block (7), a guide column (8), a spring (81), a wire (9) and a second stop pin (10), wherein a slot (11) is provided at the rear end of the stapler body (1), the guide pin (3) is fixedly installed in the slot (11), a guide hole (31) is provided at the front end of the battery assembly (2), and the battery assembly (2) is slidably connected to the stapler body (1). The stapler body (1) is movably mounted in a slot (11) at the rear end of the stapler body (1); the guide pin (3) is slidably embedded in the guide hole (31); the rotating shaft (4) is rotatably mounted at the upper and lower parts of the slot (11); the positioning sleeve (62) is sealingly fixedly embedded in the stapler body (1); the rotating shaft (4) and the positioning sleeve (62) can rotate relative to each other; the key (41) is fixedly mounted on the top of the rotating shaft (4); the knob (6) is slidably sleeved on the top of the rotating shaft (4); the key (41) is used to limit the relative rotation of the knob (6) and the rotating shaft (4); the easily breakable connecting column The upper and lower ends of the battery assembly (64) are respectively fixedly connected to the knob (6) and the positioning sleeve (62); the upper ends of the two first limit pins (63) are fixedly mounted on the knob (6); the positioning sleeve (62) is provided with a limit hole matched with the first limit pin (63); the inner end surface of the battery assembly (2) has two electrode sheets (21); the two insulating sleeves (5) are fixedly sleeved and mounted on the rotating shaft (4); one side of the insulating sleeve (5) is provided with a receiving groove (50); the conductive voltage block (7) is slidably mounted in the receiving groove (50); the left end of the guide column (8) is fixedly mounted in the receiving groove (50), the right end of the guide column (8) is slidably installed in the conductive voltage block (7), the spring (81) is sleeved and installed on the guide column (8), the two ends of the spring (81) act on the rotating shaft (4) and the conductive voltage block (7) respectively, the upper and lower parts of the insulating sleeve (5) are provided with an oblong hole (410) connected to the accommodating groove (50), the second limit pin (10) is slidably installed in the oblong hole (410), the lower part of the second limit pin (10) is also fixedly connected to the conductive voltage block (7), and the conductive voltage block (7) passes through the control module of the stapler body (1).

2. The battery assembly state conversion mechanism of the disposable laparoscopic electric cutting stapler according to claim 1 is characterized in that: The outer ends of the guide pin (3) and the first limit pin (63) are both configured as frustum-shaped structures.

3. The battery assembly state conversion mechanism of the disposable laparoscopic electric cutting stapler according to claim 1 is characterized in that: A status identification point is provided on the top of the knob (6).

4. The battery assembly state conversion mechanism of the disposable laparoscopic electric cutting stapler according to claim 1 is characterized in that: An anti-slip rubber sleeve is fixedly sleeved and mounted on the first limiting pin (63).

5. The battery assembly state conversion mechanism of the disposable laparoscopic electric cutting stapler according to claim 1 is characterized in that: The outer surface of the knob (6) is longitudinally provided with strip-shaped anti-slip grooves.

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