Threading device of electronic endoscope

Abstract

The utility model discloses a threading device for an electronic endoscope, which relates to the technical field of threading of electronic endoscopes and comprises a connecting pipe fixed with a threading pipe of a handle control wire in a pressing manner and an air blowing pipe penetrating through the connecting pipe. The connecting pipe is provided with a limiting piece and an abutting fixing piece, when the connecting pipe is inserted into the threading pipe, the limiting piece is clamped outside a pipe opening of the threading pipe, and the abutting piece is in abutting contact with the interior of the threading pipe; the length of the air blowing pipe is smaller than that of the threading pipe, and the air blowing pipe is connected with air supply equipment. According to the threading device of the electronic endoscope, the high-pressure gas is used for blowing, the image acquisition module wire harness can rapidly and stably penetrate through the threading pipe, and the threading efficiency is remarkably improved. Due to the blowing action of the high-pressure gas, the wire harness can be prevented from being bent and knotted in the threading process, so that damage to the wire harness is reduced, and the service life of the wire harness is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic endoscope threading, and more specifically to an electronic endoscope threading device. Background Art

[0002] Endoscope is an important tool for medical diagnosis and treatment. It can observe, inspect and treat internal tissues and organs of the human body without invading the patient's body. It is widely used. In order to facilitate the operation of medical staff, the length of the wiring harness between the endoscope and its host is often set at about three meters.

[0003] During the production and assembly of electronic endoscopes, the image acquisition module is often set up separately. During processing, the data power line of the image acquisition module needs to be passed through the control line of the electronic endoscope handle. The existing methods are mostly manual threading or assisted by nickel-titanium wire as a traction needle.

[0004] In the process of implementing this solution, it was found that there are at least the following problems in the prior art: due to the long length of the wiring harness between the endoscope and its host, the above-mentioned threading method has low threading efficiency and easily causes accumulation and damage of the image acquisition module wiring harness. Utility Model Content

[0005] The purpose of the utility model is to provide an electronic endoscope threading device to solve the technical problems existing in the above-mentioned background technology.

[0006] The utility model provides a threading device for an electronic endoscope, comprising a connecting tube pressed and fixed against a threading tube of a handle control line and an air blowing tube passing through the connecting tube;

[0007] A limit piece and a pressing fixing piece are provided on the connecting tube. When the connecting tube is inserted into the threading tube, the limit piece is stuck outside the tube mouth of the threading tube, and the pressing fixing piece is in pressing contact with the inside of the threading tube. The length of the air blowing tube is smaller than that of the threading tube, and the air blowing tube is connected to the air supply equipment.

[0008] In a preferred embodiment, the limiting member includes a limiting ring located outside the connecting pipe and integrally provided with the connecting pipe.

[0009] In a preferred embodiment, the pressing fixing member includes a plurality of elastic fixing sheets circumferentially arranged outside the connecting pipe.

[0010] In a preferred embodiment, it also includes a traction device for traction of the handle control line.

[0011] In a preferred embodiment, the traction device includes a base, a distal traction mechanism and a proximal traction mechanism arranged on the base, and the distal traction mechanism and the proximal traction mechanism are both provided with clamping modules, and the two clamping modules respectively clamp the two ends of the handle control line.

[0012] In a preferred embodiment, the remote traction mechanism includes an electric guide rail and a remote mounting plate arranged on the electric guide rail, and the clamping module is arranged on the remote mounting plate.

[0013] In a preferred embodiment, the proximal traction mechanism includes a fixed guide rail, a proximal mounting plate slidably disposed on the fixed guide rail, and an adjustment knob for adjusting the position of the proximal mounting plate.

[0014] In a preferred embodiment, the clamping module includes a driving slider, a clamping claw block arranged on the driving slider, and a clamping head rotatably arranged on the clamping claw, and an arc-shaped clamping opening is opened on the inner side of the clamping head.

[0015] In a preferred embodiment, a multi-support arm adjustment bracket is provided on the side of the proximal traction mechanism away from the distal traction mechanism, and a handle control line bayonet is provided on the multi-support arm adjustment bracket.

[0016] In a preferred embodiment, the multi-support arm adjustment bracket includes a mounting base and a first support arm, a second support arm, a third support arm, a fourth support arm, and a fifth support arm that are axially connected in sequence, the mounting base is axially connected to the first support arm, and the handle control line clamp block is axially connected to the fifth support arm.

[0017] The beneficial effects of the technical solution of the utility model are:

[0018] Traditional manual threading or nickel-titanium wire pulling methods are inefficient and easily cause wire harness damage. The electronic endoscope threading device provided in this application uses high-pressure gas blowing to quickly and smoothly pass the image acquisition module wire harness through the threading tube, significantly improving the threading efficiency.

[0019] Due to the blowing effect of the high-pressure gas, the present application can avoid bending and tangling of the wire harness during the threading process, thereby reducing damage to the wire harness and extending the service life of the wire harness.

[0020] The present application sets a traction mechanism to pull the handle control line, so that the handle control line 1 is in a tensioned state, thereby avoiding bending that causes increased resistance during the threading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the position relationship diagram of the connecting pipe and the handle control line of the utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the connecting pipe and the air blowing pipe of the utility model.

[0023] Figure 3 This is the position relationship diagram of the traction mechanism and the handle control line of the utility model.

[0024] Figure 4 This is a schematic diagram of the clamping module of the utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the proximal traction mechanism of the utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the multi-support arm adjustment bracket of the utility model.

[0027] Explanation of the accompanying drawings: 1 handle control line, 11 outer insulation layer, 12 inner shielding layer, 13 handle control wiring harness, 14 threading tube, 2 connecting tube, 21 limit ring, 22 elastic fixing plate, 3 blowing tube, 4 base, 5 distal traction mechanism, 51 electric guide rail, 52 distal mounting plate, 6 proximal traction mechanism, 61 fixed guide rail, 62 proximal mounting plate, 63 adjusting knob, 7 clamping module, 71 driving slider, 72 clamping claw block, 73 chuck, 74 arc-shaped clamping mouth, 8 multi-support arm adjustment bracket, 81 mounting base, 82 first support arm, 83 second support arm, 84 third support arm, 85 fourth support arm, 86 fifth support arm, 9 handle control line clamp block. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the sake of illustration and convenience of description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0029] like Figure 1 As shown, the existing handle control line 1 includes an outer insulating layer 11, an inner shielding layer 12 is arranged inside the outer insulating layer 11, a handle control harness 13 and a threading tube 14 are arranged inside the inner shielding layer 12, and the threading tube 14 located at one end of the image acquisition module protrudes from the end face of the outer insulating layer 11 alone, and the inner shielding layer 12 and the handle control harness 13 at this end are flush with the outer insulating layer 11, and the length of the threading tube 14 protruding from the end face of the outer insulating layer 11 is generally 10-20mm. The handle control line 1 is a flexible wire, and the threading tube 14 is a soft plastic tube. During operation, the image acquisition module harness needs to be inserted from one end of the threading tube 14 protruding from the end face of the outer insulating layer 11 and out from the other end.

[0030] like Figure 1-2 As shown, the technical solution of the utility model provides an electronic endoscope threading device, comprising a connecting tube 2 pressed and fixed with a threading tube 14 of a handle control line 1 and an air blowing tube 3 arranged through the connecting tube 2. A limiter and a pressing and fixing member are arranged on the connecting tube 2. When the connecting tube 2 is inserted into the threading tube 14, the limiter is stuck outside the tube opening of the threading tube 14, and the pressing and fixing member is pressed and contacted with the inside of the threading tube 14; the length of the air blowing tube 3 is less than that of the threading tube 14, and the air blowing tube 3 is connected to an air supply device.

[0031] In the above scheme, one end of the connecting tube 2 is inserted into the threading tube 14, and is limited by a limiting member, and is fixed to the threading tube 14 by pressing the fixing member. After the air blowing tube 3 passes through the through hole on the connecting tube 2, it can be fixed to the connecting tube 2 by gluing or other methods. The air blowing tube 3 is provided with a bending section, and the bending section is connected to the air supply device through a hose. During the threading process, the image acquisition module harness is inserted into the threading tube 14 through the through hole on the connecting tube 2. After the image acquisition module harness is clamped by fingers or clamps, the wire is fed into the threading tube 14, and at the same time, the air supply device feeds high-pressure gas into the air blowing tube 3. The image acquisition module harness located in the threading tube 14 is blown forward by the high-pressure gas, and at the same time, the blowing of the high-pressure gas can prevent the acquisition module harness from bending and tangling, so that the threading tooling is completed conveniently and quickly.

[0032] In the above solution, the stopper includes a stopper ring 21 located outside the connecting tube 2 and integrally arranged with the connecting tube 2. The pressing fixing member includes a plurality of elastic fixing sheets 22 circumferentially arranged outside the connecting tube 2, and the elastic sheets press against the inner wall of the threading tube 14. In order to ensure the firmness of the fixing, a convex point can be arranged outside the elastic fixing sheet 22 to ensure the firmness of the fixing.

[0033] like Figure 3-6 As shown, the device further includes a traction device for traction of the handle control line 1. The traction device includes a base 4, a distal traction mechanism 5 and a proximal traction mechanism 6 arranged on the base 4, and a clamping module 7 is arranged on the distal traction mechanism 5 and the proximal traction mechanism 6. The two clamping modules 7 clamp the two ends of the handle control line 1 respectively, so that the handle control line 1 is in a tensioned state to avoid bending and causing greater resistance during the threading process.

[0034] The distal traction mechanism 5 includes an electric guide rail 51 and a distal mounting plate 52 disposed on the electric guide rail 51, and the clamping module 7 is disposed on the distal mounting plate 52. The proximal traction mechanism 6 includes a fixed guide rail 61, a proximal mounting plate 62 slidably disposed on the fixed guide rail 61, and an adjustment knob 63 for adjusting the position of the proximal mounting plate 62, and the clamping module 7 is disposed on the proximal mounting plate 62. The clamping module 7 includes a driving slider 71, a clamping claw block 72 disposed on the driving slider 71, and a clamping head 73 rotatably disposed on the clamping claw, and an arc-shaped clamping opening 74 is provided inside the clamping head 73.

[0035] In the above scheme, the two ends of the handle control line 1 are clamped by the arc-shaped clamping openings 74 on the two-component clamps 73, and the distal mounting plate 52 is driven to move by the electric guide rail 51 to achieve the tensioning of the handle control line. The height of the proximal mounting plate 62 is adjusted by adjusting the knob 63, so that the height of the clamp on the proximal mounting plate is higher than the height of the clamp on the distal mounting plate 52. During the adjustment process, the clamp 73 rotates adaptively on the clamping claw. After the adjustment, the handle control line 1 is in an inclined state, which is convenient for subsequent threading work. One end of the connecting tube 2 is located on the side of the proximal traction mechanism 6.

[0036] A multi-support arm adjustment bracket 8 is provided on the side of the proximal traction mechanism 6 away from the distal traction mechanism 5, and a handle control line 1 bayonet is provided on the multi-support arm adjustment bracket 8. The multi-support arm adjustment bracket 8 includes a mounting base 81 and a first support arm 82, a second support arm 83, a third support arm 84, a fourth support arm 85, and a fifth support arm 86 which are axially connected in sequence. The mounting base 81 is axially connected to the first support arm 82, and the handle control line clamp block 9 is axially connected to the fifth support arm 86.

[0037] The handle control line clamp block 9 is provided with a harness bayonet for fixing the handle control line 1. The purpose of such a setting is to fix the threading end of the handle control line 1 in the harness bayonet. The setting of the multi-support arm adjustment bracket 8 can ensure that more operating angles can be adjusted, and at the same time, it can avoid unnecessary interference caused by directly clamping the end on the proximal mounting plate 62. The number of support arms of the multi-support arm adjustment bracket 8 can be adjusted according to actual needs, and the installation angle of its rotating shaft can also be set according to actual needs.

[0038] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. An electronic endoscope threading device, characterized in that: It includes a connecting tube pressed and fixed against a threading tube of a handle control line and an air blowing tube arranged through the connecting tube; A limit piece and a pressing fixing piece are provided on the connecting tube. When the connecting tube is inserted into the threading tube, the limit piece is stuck outside the tube mouth of the threading tube, and the pressing fixing piece is in pressing contact with the inside of the threading tube. The length of the air blowing tube is smaller than that of the threading tube, and the air blowing tube is connected to the air supply equipment.

2. The electronic endoscope threading device according to claim 1, characterized in that: The limiting member comprises a limiting ring which is located outside the connecting pipe and is integrally provided with the connecting pipe.

3. The electronic endoscope threading device according to claim 1, characterized in that: The pressing fixing member comprises a plurality of elastic fixing sheets circumferentially arranged outside the connecting pipe.

4. An electronic endoscope threading device according to any one of claims 1 to 3, characterized in that: Also included is a traction device for traction of the handle control line.

5. The electronic endoscope threading device according to claim 4, characterized in that: The traction device comprises a base, a distal traction mechanism and a proximal traction mechanism arranged on the base, and the distal traction mechanism and the proximal traction mechanism are both provided with clamping modules, and the two clamping modules clamp the two ends of the handle control line respectively.

6. The electronic endoscope threading device according to claim 5, characterized in that: The remote traction mechanism comprises an electric guide rail and a remote mounting plate arranged on the electric guide rail, and the clamping module is arranged on the remote mounting plate.

7. The electronic endoscope threading device according to claim 5, characterized in that: The proximal traction mechanism comprises a fixed guide rail, a proximal mounting plate slidably arranged on the fixed guide rail, and an adjusting knob for adjusting the position of the proximal mounting plate.

8. The electronic endoscope threading device according to claim 5, characterized in that: The clamping module comprises a driving slider, a clamping claw block arranged on the driving slider, and a clamping head rotatably arranged on the clamping claw, wherein an arc-shaped clamping opening is provided on the inner side of the clamping head.

9. The electronic endoscope threading device according to claim 5, characterized in that: A multi-support arm adjustment bracket is arranged on the side of the proximal traction mechanism away from the distal traction mechanism, and a handle control line bayonet is arranged on the multi-support arm adjustment bracket.

10. The electronic endoscope threading device according to claim 9, characterized in that: The multi-support arm adjustment bracket includes a mounting base and a first support arm, a second support arm, a third support arm, a fourth support arm, and a fifth support arm which are axially connected in sequence. The mounting base is axially connected to the first support arm, and the handle control line clamp block is axially connected to the fifth support arm.

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