Stabilizing structure for steering and resetting of electric endoscope

Abstract

The utility model discloses a stabilizing structure for steering and resetting of an electric endoscope, and belongs to the technical field of electric endoscope anastomats. The rotating head is located between the instrument head end and the joint seat and plays a role in linkage, and a plurality of clamping teeth II and clamping teeth I are arranged on one side of the rotating head; the joint seat is movably connected with the rotating head, a clamping rod, a clamping rod spring, a reset rod and a reset rod spring are installed on the joint seat, the clamping rod is connected with a steering connecting piece and extends to the outer side to be connected with a control handle, and a second sliding groove is formed in the position, close to the control handle, of the joint seat; the protective sleeve sleeves the outer surface of the joint seat and is used for limiting the moving angle of the instrument head end. The utility model solves the problem that the head end of an instrument shakes in the existing resetting process, the body structure or organ of a patient is possibly injured, and medical negligence is caused, and the head end of the instrument is stably recovered to a straight state by prolonging the latch I in the middle of the rotating head, so that the medical negligence is avoided. And the protective sleeve plays a role in reinforcing and limiting the head end of the instrument to avoid shaking when the instrument is taken back.

Description

Technical Field

[0001] The utility model relates to the technical field of electric laparoscope staplers, in particular to a stable structure used for steering and resetting an electric laparoscope. Background Art

[0002] In the actual use of the electric laparoscopic stapler, it is often necessary to adjust the angle of the instrument tip according to the different surgical sites to reduce the difficulty of the surgical operation. When bending the instrument tip in the body cavity, it is necessary to select an appropriate surface as the contact surface to apply force to the instrument tip to achieve the purpose of bending the instrument tip. The lateral side of the instrument tip is placed against the contact surface, the index finger pulls the knob, and at the same time, force is gently applied to the contact surface to push the position of the instrument tip. After the desired bending angle is reached, release the knob to lock the angle.

[0003] The comparative document CN202211113599.0 discloses a steering transmission device of an electric laparoscopic stapler, comprising a fixed bracket, a fixed block, a driving assembly, a transmission state conversion mechanism, a rotating handle, a rotating gear ring and a fixed handle; the fixed bracket is installed at the front of the fixed handle, the rotating handle is installed at the front end of the fixed handle, the driving assembly is installed in the fixed bracket, and the transmission state conversion mechanism is installed at the lower part of the driving assembly; the fixed bracket comprises a fixed bracket body, a semi-circular arc mounting column is provided at the front end of the fixed bracket body, and a swing head transmission motor mounting groove is provided in sequence at the lower part of the body of the solid bracket; the rotating handle is installed at the front end of the fixed handle through the fixed bracket mounting groove; the inner ring of the rotating gear ring is provided with internal teeth, and when installed, the rotating gear ring is installed in the rotating gear ring mounting groove of the rotating handle, and the internal teeth are meshed with the outer gear ring of the motor transmission gear.

[0004] Based on the above, in the actual use of the electric laparoscopic stapler, it is often necessary to adjust the angle of the instrument head according to the different surgical sites to reduce the difficulty of surgical operation. When bending the instrument head in the body cavity, it is necessary to select an appropriate surface as the contact surface to apply force to the instrument head to achieve the purpose of bending the instrument head. The lateral side of the instrument head is placed against the contact surface, and the index finger pulls the knob and gently applies force to the contact surface to push the position of the instrument head. After the desired bending angle is reached, the knob is released to lock the angle. During the operation of the steering device, the operator needs to pull the knob to drive the steering connecting piece to displace the positioning rod. In this process, force is applied to the instrument head to rotate the rotating head to the required angle. After the desired angle is reached, the knob is released to return the locking rod to its initial state, and the locking teeth of the rotating head enter the locking groove of the locking rod, thereby fixing the rotating head to complete the steering of the instrument head. After the surgical operation is completed and before the instrument is taken out, the knob is pulled to automatically restore the instrument head to a straight position. However, during the recovery process, the force on the reset spring is canceled, and the force on the instrument head will compress the reset spring on the other side, causing the instrument head to shake during the reset process. At this time, the instrument head is still inside the human body. If the bending angle reaches the maximum of 45°, a greater force will be generated, resulting in more obvious shaking of the instrument head, which may cause damage to the patient's body structure or organs, thereby causing medical accidents.

[0005] Therefore, in order to solve the above problems, a stable structure for steering and resetting an electric laparoscope is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a stable structure for the steering and resetting of an electric laparoscope, so as to solve the problem that the head end of the instrument shakes during the existing resetting process mentioned in the above background technology. At this time, the head end of the instrument is still inside the human body. If the bending angle reaches the maximum of 45°, a greater force will be generated, resulting in more obvious shaking of the head end of the instrument, which may cause damage to the patient's body structure or organs, thereby causing medical accidents.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stable structure for steering and resetting an electric laparoscope, comprising a laparoscope body, wherein the laparoscope body comprises an instrument head end, a rotating head, a steering connecting piece, a protective sleeve and a joint seat,

[0008] The rotating head is located between the head end of the instrument and the joint seat, and plays a linkage role. A plurality of second latch teeth and first latch teeth are provided on one side of the rotating head;

[0009] The joint seat is movably connected with the rotating head, and a locking rod, a locking rod spring, a reset rod and a reset rod spring are respectively installed on the joint seat, the locking rod is connected with a steering connecting piece, and extends to the outside to connect the control handle, and a second slide groove is opened near the control handle of the joint seat;

[0010] The protective sleeve is put on the outer surface of the joint seat and is used to limit the movable angle of the instrument head end.

[0011] Preferably, one side of the rotating head is connected to a locking rod through a joint seat transmission, and the lower end of the locking rod is connected to a locking rod spring.

[0012] Preferably, two reset rods are provided and respectively installed in the grooves of the joint seat. The outer surfaces of the two reset rods are sleeved with reset rod springs. The front ends of the two reset rods are connected to the movable ring at the head end of the traction device for controlling the left and right movement of the head end of the device.

[0013] Preferably, a slot is provided at the front end of the locking rod, a first locking tooth is located in the middle of the plurality of second locking teeth and is embedded in a gap in the slot, and the first locking tooth is longer than the plurality of second locking teeth.

[0014] Preferably, both sides of the front end of the slot are provided with clamping blocks, and a sliding groove 1 is provided in the gap between the first clamping tooth and the adjacent second clamping tooth, and is movably connected with the two clamping blocks.

[0015] Preferably, a second thread is provided on the outer surface of the joint seat, and a second slide groove is provided on the outer surface of the joint seat near the laparoscope control handle.

[0016] Preferably, a first thread is provided in the middle of the inner side of the protective sleeve, and the first thread is movably connected with the second thread.

[0017] Preferably, the protective sleeve is connected to a telescopic rod near the laparoscope control handle, and a button block for controlling the rotation of the protective sleeve is provided on the outer surface of the telescopic rod, which is used to control the position of the protective sleeve, and the lower end of the button block is movably connected to the second slide groove through the telescopic rod.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The latching tooth 1 of the rotating head of the utility model improves the size of the latching tooth of the rotating head and extends the middle latching tooth 1, so that it can hinder the latching groove of the latching rod during the resetting process under the premise of meeting the compression stroke of the latching rod spring, and further accurately and stably restore the head end of the instrument to a straight state. The additional sliding groove 1 and the clamping block on the secondary structure can be used to coordinate the stability of the relationship between the extended latching tooth 1 and the latching groove of the latching rod, ensuring that the structure will not be damaged under long-term use;

[0020] 2. The protective sleeve of the utility model utilizes the movable relationship between the threads to control the front end of the protective sleeve to extend to the head end of the instrument, thereby limiting the head end of the instrument from shaking and reinforcing the straightness. The button on the telescopic rod at the rear end of the protective sleeve can limit the overall position of the protective sleeve, and medical staff can control the position of the protective sleeve by rotating the button to control the rotation of the lower thread 1 and thread 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The schematic diagram of the cross-sectional structure of the existing electric laparoscope body is shown in FIG. Figure 1 ;

[0022] Figure 2 The schematic diagram of the cross-sectional structure of the existing electric laparoscope body is shown in FIG. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of the electric laparoscope body of the utility model;

[0024] Figure 4 This is a schematic diagram of the relationship between the rotating head and the locking rod of the utility model;

[0025] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of the middle A area;

[0026] Figure 6 This is a schematic diagram of the structure of the protective cover of the utility model;

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the protective cover of the utility model.

[0028] In the figure: 1. instrument head end; 2. rotating head; 201. latch tooth 1; 202. slide groove 1; 203. latch tooth 2; 3. latch rod; 301. latch groove; 302. latch block; 4. latch rod spring; 5. steering connecting piece; 6. reset rod spring; 7. reset rod; 8. protective cover; 9. joint seat; 901. slide groove 2; 10. telescopic rod; 11. press block; 12. thread 1; 13. thread 2. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In order to solve the technical problems in the prior art, please refer to the figure and provide the following technical solutions:

[0031] The utility model discloses a stable structure for steering and resetting an electric laparoscope: the laparoscope body comprises an instrument head end 1, a rotating head 2, a steering connecting piece 5, a protective cover 8 and a joint seat 9; the rotating head 2 is located between the instrument head end 1 and the joint seat 9, and plays a linkage role; a plurality of second latching teeth 203 and a first latching tooth 201 are arranged on one side of the rotating head 2; the joint seat 9 is movably connected with the rotating head 2; a latching rod 3, a latching rod spring 4, a resetting rod 7 and a resetting rod spring 6 are respectively installed on the joint seat 9; the latching rod 3 is connected with the steering connecting piece 5, and extends A control handle is connected to the outside, and a slide groove 901 is provided at the joint seat 9 near the control handle. A protective sleeve 8 is sleeved on the outer surface of the joint seat 9 to limit the movable angle of the instrument head end 1. A locking rod 3 is connected to one side of the rotating head 2 through the joint seat 9. A locking rod spring 4 is connected to the lower end of the locking rod 3. Two reset rods 7 are provided and are respectively installed in the grooves of the joint seat 9. The outer surfaces of the two reset rods 7 are sleeved with reset rod springs 6. The front ends of the two reset rods 7 are connected to the movable ring of the traction instrument head end 1 to control the left and right movements of the instrument head end 1. Figure 1 and Figure 2 , Figure 3 As shown, the size of the latch tooth 201 of the rotating head 2 is improved, and the latch tooth 201 is extended so that it can hinder the latch groove of the latch rod 3 during the resetting process while meeting the compression stroke of the latch rod spring 4, thereby further accurately and stably restoring the instrument head end 1 to a straight state.

[0032] In this embodiment, a slot 301 is provided at the front end of the locking rod 3, the first locking tooth 201 is located between the plurality of second locking teeth 203 and is embedded in the gap of the slot 301, the first locking tooth 201 is longer than the plurality of second locking teeth 203, and blocks 302 are provided on both sides of the front end of the slot 301, and a slide groove 202 is provided in the gap between the first locking tooth 201 and the adjacent second locking tooth 203, and is movably connected to the two blocks 302, such as Figure 4 and Figure 5 As shown, the added block 302 and the slide groove 202 are used to cooperate with the extension of the latch tooth 201 to increase the stability of the relationship between it and the latch groove of the latch rod 3, ensuring that the structure will not be damaged in long-term use.

[0033] In this embodiment, the outer surface of the joint seat 9 is provided with a second thread 13, and the outer surface of the joint seat 9 is provided with a second slide groove 901 near the laparoscope control handle. The inner side of the protective sleeve 8 is provided with a thread 12 in the middle, and the thread 12 is movably connected with the thread 13. The protective sleeve 8 is connected with a telescopic rod 10 near the laparoscope control handle. The outer surface of the telescopic rod 10 is provided with a button 11 for controlling the rotation of the protective sleeve 8, which is used to control the position of the protective sleeve 8. The lower end of the button 11 is movably connected to the second slide groove 901 through the telescopic rod 10. Figure 3 and Figure 6 , Figure 7The thread 2 13 on the outer surface of the joint seat 9 and the thread 1 12 on the inner side of the protective sleeve 8 are used to control the front and rear position of the protective sleeve 8 under the action of the rotation of the push block 11, and the telescopic rod 10 makes the protective sleeve 8 move forward and backward without affecting the position of the push block 11, and the protective sleeve 8 moves forward as shown in the figure. Figure 1 As shown, the shaking of the instrument head 1 can be restricted, and the protective cover 8 can be separated from the part that needs to be moved by moving backward, so that the instrument head 1 and the movable structure between the rotating head 2 and the joint seat 9 can be used normally.

[0034] Working principle: When the electric laparoscope steering device is in the process of resetting, the size of the tooth 1 201 of the rotating head 2 is improved during the processing of parts, so that it is extended and longer than the length of the other tooth 203, such as Figure 5 As shown, under the premise of the compression stroke of the locking rod spring 4, it can hinder the locking groove of the locking rod 3 during the resetting process, further accurately and stably restore the instrument head end 1 to a straight state, and the block 302 and the slide groove 202 there are used to cooperate with the extension of the locking tooth 201, such as Figure 5 As shown, the relationship between it and the card slot of the locking rod 3 increases stability. At the same time, the medical staff can control the forward and backward movement of the protective sleeve 8 by rotating the button 11 located near the laparoscope control handle. The protective sleeve 8 moves to the instrument head end 1 based on the thread relationship between the thread 2 13 and the thread 1 12, so that the instrument head end 1 is restricted from shaking, and then the electric laparoscope stapler can be taken out. When the instrument head end 1 is used, the button 11 is rotated to move the protective sleeve 8 backward and away from the instrument head end 1, so that the instrument head end 1 and the movable structure between the rotating head 2 and the joint seat 9 can be used normally.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable structure for steering and resetting an electric laparoscope, characterized in that: The laparoscope body comprises an instrument head end (1), a rotating head (2), a steering connecting piece (5), a protective sleeve (8) and a joint seat (9). The rotating head (2) is located between the instrument head end (1) and the joint seat (9) and plays a linkage role. A plurality of second latch teeth (203) and first latch teeth (201) are provided on one side of the rotating head (2); The joint seat (9) is movably connected to the rotating head (2); a locking rod (3), a locking rod spring (4), a reset rod (7) and a reset rod spring (6) are respectively installed on the joint seat (9); the locking rod (3) is connected to a steering connecting piece (5) and extends to the outside to connect to a control handle; and a second slide groove (901) is provided on the joint seat (9) near the control handle; The protective sleeve (8) is sleeved on the outer surface of the joint seat (9) and is used to limit the movable angle of the instrument head end (1).

2. A stable structure for steering and resetting an electric laparoscope according to claim 1, characterized in that: One side of the rotating head (2) is transmission-connected to a locking rod (3) via a joint seat (9), and the lower end of the locking rod (3) is connected to a locking rod spring (4).

3. A stable structure for steering and resetting an electric laparoscope according to claim 1, characterized in that: Two reset rods (7) are provided and are respectively installed in the grooves of the joint seat (9). The outer surfaces of the two reset rods (7) are both covered with reset rod springs (6). The front ends of the two reset rods (7) are connected to the movable ring of the traction device head end (1) for controlling the left and right movement of the device head end (1).

4. A stable structure for steering and resetting an electric laparoscope according to claim 1, characterized in that: The front end of the locking rod (3) is provided with a locking groove (301), the first locking tooth (201) is located in the middle of the plurality of second locking teeth (203) and is embedded in the gap of the locking groove (301), and the first locking tooth (201) is longer than the plurality of second locking teeth (203).

5. A stable structure for steering and resetting an electric laparoscope according to claim 4, characterized in that: Both sides of the front end of the clamping slot (301) are provided with clamping blocks (302), and a sliding groove (202) is provided in the gap between the first clamping tooth (201) and the adjacent second clamping tooth (203), and is movably connected to the two clamping blocks (302).

6. The stabilizing structure for steering and resetting an electric laparoscope according to claim 1, characterized in that: The outer surface of the joint seat (9) is provided with a second thread (13), and the outer surface of the joint seat (9) is provided with a second slide groove (901) near the laparoscope control handle.

7. A stable structure for steering and resetting an electric laparoscope according to claim 6, characterized in that: A thread 1 (12) is provided in the middle of the inner side of the protective sleeve (8), and the thread 1 (12) is movably connected to the thread 2 (13).

8. A stable structure for steering and resetting an electric laparoscope according to claim 7, characterized in that: The protective sleeve (8) is connected to a telescopic rod (10) near the laparoscope control handle, and a button (11) for controlling the rotation of the protective sleeve (8) is provided on the outer surface of the telescopic rod (10) and is used to control the position of the protective sleeve (8). The lower end of the button (11) is movably connected to the second slide groove (901) through the telescopic rod (10).

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