Percussion protection device for detachable electric endoscope

Abstract

The percussion protection device comprises a gun barrel assembly and a device body, and the gun barrel assembly is detachably and rotatably connected to the left end of the device body; the device further comprises a supporting piece. A slide block; an outer sleeve; a withdrawing pull rod block; a connecting piece; and a limit firing member; protruding blocks are arranged on the upper side and the lower side of the right end of the gun barrel assembly. The device body is further provided with a button used for percussion of the gun barrel assembly. The device further comprises a reset piece. When the gun barrel assembly is connected with the device body in an inserted mode, the position of the button is limited through transmission of the internal structure of the gun barrel assembly, and therefore the phenomenon that the device body or the internal structure of the gun barrel assembly is damaged due to the fact that the mandrel forcibly moves leftwards when the button is touched by mistake is avoided. The electric anastomat can be used for separating or anastomosing tissues, is simple, convenient and rapid to operate, greatly shortens the operation time, can replace traditional manual suturing, and improves the efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to be used for detachable electric endoscope firing protection device. BACKGROUND

[0002] The anastomat is a kind of common medical equipment in surgical medical apparatus and instruments, which can replace manual suture operation, and only needs to be operated to realize wound anastomosis, tissue cutting and the like. Therefore, it is widely applied in open or minimally invasive general surgery, thoracic surgery and pediatric surgery and the like. The electric anastomat is a kind of device with motor drive, which can realize automatic operation of part of actions in the operation process of anastomat. The detachable electric anastomat needs to be inserted and rotationally assembled to the body first when in use, and then normal use is carried out. The internal structure is multi-stage gear connected with the motor, the multi-stage gear is driven to drive the rack connected with the upper gear to move linearly after the motor is started, the rack is connected with the mandrel, the linear movement of the rack pushes the mandrel, the mandrel continues to push the cutting knife into the nail cartridge assembly, so that the staple is shot from the nail cartridge assembly and is formed by the action of the staple forming piece, and then the automatic cutting and suture operation is completed.

[0003] However, the existing detachable electric anastomat can be started to perform firing work when the gun barrel assembly is not assembled in place in the body during use, at this time, the mandrel forcibly moves forward, and finally the body may be blown out or the gun barrel is dragged open, which may cause great harm to the operation. Therefore, it is necessary to develop a protection device for preventing the anastomat from performing electric firing work when the gun barrel assembly is not assembled in place.

[0004] The detachable electric anastomat on the market is composed of a gun barrel assembly and a body, the gun barrel assembly needs to be inserted and rotated by a certain angle to be assembled to the body, the insertion step can satisfy the energization of the trigger body, and the rotation by a certain angle can satisfy the assembly in place. There is a protection device in the gun barrel assembly, if the gun barrel assembly is not assembled in place, the cutting knife and the moving part in the gun barrel assembly cannot move and are limited by the limiting structure, but the body does not have a protection device and can be opened and fired. When the gun barrel assembly is assembled to the body and satisfies the insertion step, but the rotation angle is not enough and the gun barrel assembly is not assembled in place, the rack in the body drives the mandrel to forcibly move forward and violently push the cutting knife and the moving part in the gun barrel assembly. Finally, the body may be blown out, the gun barrel may be dragged open and the like, which may cause dangerous conditions. SUMMARY

[0005] The utility model aims at providing a detachable electric endoscope firing protection device, which can prevent the electric anastomat from performing electric firing action when the gun barrel assembly and the body are not inserted in place, and improve the product and operation safety.

[0006] The utility model discloses a following technical scheme realizes: for detachable electric endoscope firing protection device, including gun barrel assembly and the body, and gun barrel assembly detachable rotation is connected in the left end of the body,

[0007] Also includes:

[0008] Support, be located in the body, and the lower part of support is equipped with the slide rail that extends along the left and right direction;

[0009] Sliding block, and the sliding block can be in the left and right sliding of the slide rail of support, and the recess is equipped on the sliding block;

[0010] The outer sleeve is as the left half pipe section of the body and is covered in the periphery of support and sliding block;

[0011] The position retreats pull rod block, is located in the bottom side of the body, and the left end of position retreats pull rod block is equipped with the connecting strip, and the connecting strip extends into the body and is fixedly connected with the recess of sliding block;

[0012] Connecting piece, through the limiting structure, is connected to the right side of position retreats pull rod block, and the right end of connecting piece is equipped with the muscle strip;And

[0013] Limiting firing element, be located in the right of connecting piece and with the muscle strip of connecting piece abut;

[0014] Wherein, the upper and lower sides of the right end of gun barrel assembly are equipped with the lug, and the lug can extrude the sliding block to move right when inserting gun barrel assembly and the body;The body still is equipped with the button for firing gun barrel assembly, and the button is located below limiting firing element;The sliding block can drive position retreats pull rod block and connecting piece to move right, and then extrude limiting firing element through the muscle strip, make limiting firing element limit button firing, prevent the button from being fired because of accidental touch;

[0015] It also includes reset element, after inserting gun barrel assembly and the body, rotating gun barrel assembly can let the lug contact with the sliding block, and reset element can drive sliding block, position retreats pull rod block and connecting piece reset, make limiting firing element no longer limit button firing, make the button restore function.

[0016] Compared with prior art, the utility model has the advantages that:

[0017] 1. The utility model can limit the position of button when inserting gun barrel assembly and the body, thereby preventing the button from being accidentally touched to cause the shaft to move left and damage the internal structure of the body or gun barrel assembly.

[0018] 2. The electric anastomat can cut or anastomose tissues, which is simple and fast in operation, greatly shortens the operation time, can replace traditional manual suture and improves the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 This is a schematic diagram of the disassembled structure of Example 1;

[0020] Figure 2 This is a bottom view of Example 1;

[0021] Figure 3 This is a schematic diagram of the structure of the connecting ribs in Example 1 when they are not compressed to restrict the firing mechanism;

[0022] Figure 4 This is a schematic diagram of the structure of the connecting ribs in Embodiment 1 when they are compressed to restrict the firing mechanism;

[0023] Figure 5 This is a schematic diagram of the disassembled structure of Example 2;

[0024] Figure 6 This is a schematic diagram of the structure of Example 2 when the connecting rib is not connected to the limiting firing element;

[0025] Figure 7 This is a schematic diagram of the structure when the connecting rib and the limiting firing element are connected in Embodiment 2.

[0026] Labeling: 1. Gun barrel assembly, 2. Support component, 3. Slider, 4. Spring, 5. Outer tube, 6. Retraction lever block, 7. Connector, 8. Firing limiter, 9. Button, 10. Reset spring. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description:

[0028] like Figures 1 to 7 As shown, a detachable electric endoscope firing protection device includes a barrel assembly (1) and a body, wherein the barrel assembly (1) is detachably and rotatably connected to the left end of the body;

[0029] Also includes:

[0030] Support member (2) is located inside the body of the device. The lower part of the support member (2) is provided with a slide rail extending in the left and right direction.

[0031] The slider (3) can slide left and right in the slide rail of the support member (2), and the slider is provided with a groove;

[0032] The outer tube (5) serves as the left half of the tube of the device body and covers the outer periphery of the support (2) and the slider (3);

[0033] A connecting mechanism, the left end of which is connected to the slider (3), and a rib on the right end of which; and

[0034] The firing restraint (8) is located on the right side of the connecting mechanism and abuts against the rib of the connecting mechanism;

[0035] The gun barrel assembly (1) has protrusions on the upper and lower sides of the right end. When the gun barrel assembly (1) and the body are connected, the protrusions can squeeze the slider (3) to move to the right. The body is also provided with a button (9) for firing the gun barrel assembly (1), and the button (9) is located below the limiting firing member (8). The slider (3) moving to the right can drive the connecting mechanism to move to the right, and then the ribs of the connecting mechanism squeeze the limiting firing member (8), so that the limiting firing member (8) limits the button (9) from firing, preventing the button (9) from being fired due to accidental contact.

[0036] It also includes a reset component. After the barrel assembly (1) and the body are connected, rotating the barrel assembly (1) allows the protrusion to disengage from the slider (3) and fall into the groove provided on the left end of the outer sleeve (5). This allows the reset component to drive the slider (3) and the connecting mechanism to reset, so that the limiting firing component (8) no longer restricts the button (9) from firing, and the button (9) can resume its function. When the barrel assembly is connected to the body, this utility model can use the position of the transmission limit button in its internal structure to prevent the spindle from being forcibly moved to the left due to accidental button contact, thus preventing damage to the body or the internal structure of the barrel assembly.

[0037] Furthermore, the connecting mechanism includes a retractable pull rod block (6) and a connector (7).

[0038] Among them, the retraction pull rod block (6) is located on the bottom side of the body, and the left end of the retraction pull rod block (6) is provided with a connecting strip, which extends into the body and is fixedly connected to the groove of the slider (3).

[0039] The connector (7) is connected to the right side of the retraction lever block (6) through a limiting structure. The right end of the connector (7) is provided with a rib, which abuts against the limiting firing member (8).

[0040] Furthermore, the limiting structure consists of a retaining groove on the right end of the retractable pull rod block 6 and a retaining block on the left end of the connecting piece 7, with the retaining groove and the retaining block engaging. This limiting structure is a conventional technical means, used only to connect the retractable pull rod block 6 and the connecting piece 7, and therefore will not be described in detail.

[0041] Example 1:

[0042] like Figures 1 to 4 As shown, the limiting firing element 8 is a push block located above the button 9, and the bottom of the push block has a cylindrical structure;

[0043] The rib at the right end of the connector 7 is inclined downward and abuts against the push block; the top of the button 9 is provided with a groove that cooperates with the cylindrical structure for positioning.

[0044] The movement of connector 7 to the right allows the push block to move to the lower right and allow the cylindrical structure to enter the groove, thereby restricting the firing of button 9.

[0045] The reset component includes a spring 4 and a reset compression spring 10;

[0046] The slide rail is provided with a connecting groove on the left side, and the spring 4 is fixedly connected in the connecting groove. The left end of the spring 4 is connected to the connecting rod provided at the bottom of the slider.

[0047] The reset spring 10 is fixedly connected to the bottom end of the push block, and the reset spring 10 is sleeved on the outer periphery of the cylindrical structure;

[0048] After the gun barrel assembly 1 and the receiver are connected, rotating the gun barrel assembly 1 can disengage the protrusion from the slider 3, causing the compressed spring 4 to reset and push the slider 3 to reset to the left. At the same time, the retraction lever block 6 and the connecting piece 7 move to the left, and the reset spring 10 can push the push block to reset upward and cause the cylindrical structure at the bottom of the push block to disengage from the groove of the button 9, so that the button 9 can resume its firing function.

[0049] Working principle:

[0050] The assembly of the gun barrel assembly 1 into the body requires two steps: insertion and rotation. During the insertion step, the protrusion of the gun barrel assembly 1 pushes the slider 3 on the body to move to the right. The slider 3 and the spring 4 cooperate, and the spring 4 is in a compressed state. The retraction lever block 6 also moves to the right, and the connecting piece 7 fixed to it also moves to the right. The rib presses down on the push block 8, and the push block 8 also moves down synchronously. The cylinder of the push block 8 passes down into the round hole of the button 9. At this time, the compression spring 10 is in a compressed state, thereby locking the button 9 and preventing it from being pressed to fire.

[0051] When the barrel assembly 1 rotates, its protrusion moves away from the position of the slider 3. The slider 3 on the device body then moves to the left under the force of the spring 4, limiting the protrusion and thus fixing the barrel assembly 1. At the same time, the retraction lever block 6 also moves to the left to return to its original position, and the corresponding connecting piece 7 also moves to the left. When fully reset, the rib no longer prevents the push block 8 from resetting upwards. The push block 8, under the force of the compression spring 10, resets and moves upwards, disengaging its cylinder from the round hole of the button 9. At this point, the button can be pressed normally to fire. This ensures that the barrel assembly can only fire normally when fully assembled on the device body.

[0052] Example 2:

[0053] like Figures 5 to 7 As shown, the limiting firing element 8 is a confirmation button, and the left end of the confirmation button is provided with a groove for limiting its movement in conjunction with the rib.

[0054] The confirmation button is electrically connected to the circuit board inside the device body, and the circuit board is electrically connected to the button 9 through the confirmation button; this causes the rib of the connector 7 to move to the right and enter the rib groove of the confirmation button, thus blocking the electrical connection between the circuit board and the button 9 and restricting the firing of the button 9.

[0055] The reset component is spring 4;

[0056] The slide rail has a connecting groove on its left side, and the spring 4 is fixedly connected in the connecting groove. The left end of the spring 4 is fixedly connected to the connecting rod at the bottom of the slider.

[0057] After the gun barrel assembly 1 and the device are connected, rotating the gun barrel assembly 1 can disengage the protrusion from the slider 3. When the compressed spring 4 returns to its original position and pushes the slider 3 to the left, it drives the retraction lever block 6 and the connecting piece 7 to move to the left. At the same time, the rib of the connecting piece 7 disengages from the rib groove, the electrical connection between the circuit board and the button 9 is restored, and the button 9 resumes its firing function.

[0058] Working principle:

[0059] The assembly of the gun barrel assembly 1 into the body requires two steps: insertion and rotation. During the insertion step, the protrusion of the gun barrel assembly 1 pushes the slider 3 on the body to move to the right. The slider 3 and the spring 4 cooperate, and at this time the spring 4 is in a compressed state. The retraction lever block 6 also moves to the right, and the connecting piece 7 fixed to it also moves to the right, so that the rib enters the groove of the confirmation button, blocking the electrical connection between the circuit board and the button 9. At this time, the confirmation button cannot be pressed.

[0060] When the gun barrel assembly 1 rotates, its protrusion moves away from the position of the slider 3. The slider 3 on the device body then moves to the left under the force of the spring 4, limiting the protrusion and thus fixing the gun barrel assembly 1. At the same time, the retraction lever block 6 also moves to the left to return to its original position, and the corresponding connecting piece 7 also moves to the left. When fully reset, the rib of the connecting piece 7 disengages from the groove of the confirmation button, and the electrical connection between the circuit board and the button 9 is restored. At this point, the confirmation button can be pressed, indicating that the button can fire normally. This ensures that the gun barrel assembly can only fire normally when it is fully assembled on the device body.

[0061] Although this utility model has been illustrated and described using specific embodiments and alternative methods, it should be understood that various changes and modifications are permitted as long as they do not depart from the spirit and scope of this utility model. Therefore, it should be understood that this utility model is not limited in any sense except by the appended claims and their equivalents.

Claims

1. A detachable electric endoscope firing protection device, comprising a gun barrel assembly (1) and a body, the gun barrel assembly (1) being detachably connected to the left end of the body; characterized in that Further comprising: a support (2) arranged in the body, the lower part of the support (2) being provided with a slide rail extending in the left-right direction; a sliding block (3) capable of sliding left and right in the slide rail of the support (2), and the sliding block being provided with a groove; an outer sleeve (5) serving as the left half of the body and covering the outer periphery of the support (2) and the sliding block (3); a connecting mechanism, the left end of the connecting mechanism being connected to the sliding block (3), and the right end of the connecting mechanism being provided with a rib; and a firing limiting member (8) arranged to the right of the connecting mechanism and abutting against the rib of the connecting mechanism; wherein the upper and lower sides of the right end of the gun barrel assembly (1) are provided with protrusions, which can extrude the sliding block (3) to move rightwards when the gun barrel assembly (1) and the body are inserted; the body is further provided with a button (9) for firing the gun barrel assembly (1), and the button (9) is located below the firing limiting member (8); the rightward movement of the sliding block (3) can drive the connecting mechanism to move rightwards, and then the rib of the connecting mechanism extrudes the firing limiting member (8), so that the firing limiting member (8) limits the firing of the button (9) and prevents the button (9) from being fired due to accidental touch; it further comprises a reset member, after the gun barrel assembly (1) and the body are inserted, rotating the gun barrel assembly (1) can make the protrusions disengage from the sliding block (3) and fall into the falling groove provided at the left end of the outer sleeve (5), so that the reset member can drive the sliding block (3) and the connecting mechanism to reset, so that the firing limiting member (8) no longer limits the firing of the button (9), and the button (9) restores its function.

2. The detachable motorized endoscopic firing shield according to claim 1, wherein: The connecting mechanism comprises a position returning pull rod block (6) and a connecting member (7); wherein the position returning pull rod block (6) is arranged at the bottom side of the body, and the left end of the position returning pull rod block (6) is provided with a connecting strip extending into the body and fixedly connected to the groove of the sliding block (3); the connecting member (7) is connected to the right side of the position returning pull rod block (6) through a limiting structure, and the right end of the connecting member (7) is provided with a rib abutting against the firing limiting member (8).

3. The detachable motorized endoscopic firing shield according to claim 2, wherein: The limiting structure is a buckle groove provided at the right end of the position returning pull rod block (6) and a buckle block provided at the left end of the connecting member (7), and the buckle groove and the buckle block are connected in cooperation.

4. The detachable motorized endoscopic firing shield according to claim 2, wherein: The firing limiting member (8) is a push block arranged above the button (9), and the bottom of the push block is provided with a cylindrical structure; the rib at the right end of the connecting member (7) is inclined downward and abuts against the push block; the top of the button (9) is provided with a column groove cooperating with the cylindrical structure to limit the position; so that the rightward movement of the connecting member (7) can make the push block move rightward and downward, and the cylindrical structure enters the column groove, thereby limiting the firing of the button (9).

5. The detachable motorized endoscopic firing shield according to claim 4, wherein: The reset member comprises a spring (4) and a reset compression spring (10); the left side of the slide rail is provided with a connecting groove, the spring (4) is fixedly connected in the connecting groove, and the left end of the spring (4) is connected to the connecting rod provided at the bottom of the sliding block; the reset compression spring (10) is fixedly connected to the bottom end of the push block, and the reset compression spring (10) is sleeved on the outer periphery of the cylindrical structure; After the gun barrel assembly (1) and the body are inserted, rotating the gun barrel assembly (1) can make the protrusion disengage from the contact with the sliding block (3), so that the compressed spring (4) resets and pushes the sliding block (3) to reset to the left, drives the position resetting pull rod block (6) and the connecting piece (7) to move to the left, and the reset compression spring (10) can push the push block to reset upward and drive the cylindrical structure at the bottom of the push block to disengage from the column groove of the button (9), so that the button (9) restores the firing function.

6. The detachable motorized endoscopic firing shield according to claim 2, wherein: The limiting firing member (8) is a confirmation button, and the left end of the confirmation button is provided with a rib groove for limiting the rib: The confirmation button is electrically connected with the circuit board arranged in the body, and the circuit board is electrically connected with the button (9) through the confirmation button; so that the rib of the connecting piece (7) moves to the right into the rib groove of the confirmation button.

7. The detachable motorized endoscopic firing shield according to claim 6, wherein: The reset member is a spring (4); The left side of the sliding rail is provided with a connecting groove, and the spring (4) is fixedly connected in the connecting groove, and the left end of the spring (4) is fixedly connected with the connecting rod arranged at the bottom of the sliding block; After the gun barrel assembly (1) and the body are inserted, rotating the gun barrel assembly (1) can make the protrusion disengage from the contact with the sliding block (3), so that the compressed spring (4) resets and pushes the sliding block (3) to reset to the left, drives the position resetting pull rod block (6) and the connecting piece (7) to move to the left, and the rib of the connecting piece (7) disengages from the rib groove.

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