Endoscopic instrument pushing device

Abstract

The utility model provides an endoscopic instrument pushing device. The endoscopic instrument pushing device comprises a first combining piece, a second combining piece and a hand wheel component. According to the endoscopic instrument pushing device, the hand wheel body is rotated through the crank, a cylindrical main body of an endoscopic instrument can be pushed to rapidly advance in a biopsy pore channel of an endoscope, and when a functional head at the front end of the main body of the endoscopic instrument reaches the front end position of the biopsy pore channel and is about to emerge out of the biopsy pore channel, the main body of the endoscopic instrument can be pushed out of the biopsy pore channel. An arrow-shaped indication mark on the front side of the second gear is aligned with a first tooth of the first rotating wheel for the second time, so that an indication is provided for an operator, the operator can slow down the propelling speed of the instrument, and a functional head of the instrument slowly extends out of a biopsy hole channel to perform preset operation on a preset part.

Description

Technical Field

[0001] The present application relates to a medical device, and in particular to an endoscopic device pushing device. Background Art

[0002] During digestive endoscopy, it is often necessary to deliver instruments (such as biopsy forceps, injection needles, etc.) into the patient's body through the biopsy hole to perform the corresponding operation. The main body of these instruments is formed into a slender cylindrical shape, and the front end is a functional head; in some specific situations, the instrument needs to be quickly delivered to the predetermined position, such as to stop bleeding. However, if the operator is too hasty when delivering the instrument to the biopsy hole, it is easy to cause the functional head of the instrument to suddenly emerge from the front end of the biopsy hole and accidentally pierce the surrounding tissues, such as piercing the intestinal wall or stomach wall, which is likely to cause problems such as mucosal damage and perforation. Utility Model Content

[0003] In view of the above problems, the present application aims to propose an endoscopic instrument pushing device, which can help the endoscopic instrument to move quickly in the biopsy hole, and can give instructions to the operator after the instrument moves a predetermined length, so that the operator can slow down the instrument's movement speed in time to avoid the tip of the instrument coming out and accidentally stabbing the surrounding tissue.

[0004] The endoscopic instrument pushing device of the present application comprises: a first combining member, a second combining member, and a hand wheel component;

[0005] The first combining member has a "C"-shaped cross section, and is used to be buckled on the first side of the operating handle of the endoscope; the second combining member has a "]"-shaped cross section, and is used to be buckled on the second side of the operating handle of the endoscope; the first combining member and the second combining member are combined together by a first bolt, and are fixed on the operating handle of the endoscope, and are located above the biopsy channel of the endoscope;

[0006] The second side of the second coupling member is formed as an inclined surface, and a first mounting column is formed at the rear of the second side of the second coupling member; the first mounting column is perpendicular to the second side of the second coupling member; and a first threaded hole is formed along the length direction of the first mounting column;

[0007] A mounting wall is formed at the front part of the second side of the second combining member; the mounting wall is perpendicular to the second side of the second combining member; the first rotating shaft can be rotatably mounted between the first mounting column and the mounting wall; the first rotating shaft is perpendicular to the axial direction of the first threaded hole; the front end of the first rotating shaft extends to the front of the mounting wall; the first rubber wheel is fixedly mounted on the first rotating shaft and is driven to rotate by the first rotating shaft, and the first rubber wheel is located between the first mounting column and the mounting wall; the first rotating wheel is fixedly mounted on the front end of the first rotating shaft and is driven to rotate by the first rotating shaft; a first tooth is formed on the outer peripheral surface of the first rotating wheel; a second rotating shaft is rotatably mounted on the front side of the mounting wall, and the second rotating shaft is parallel to the first rotating shaft; a second gear is fixedly mounted on the front end of the second rotating shaft, and second teeth are distributed along the peripheral surface of the second gear; the first tooth can mesh with the second tooth on the outer periphery of the second gear, thereby driving the second gear to rotate; an arrow-shaped indicator mark is formed on the front side of the second gear;

[0008] The handwheel component comprises a handwheel body and a second mounting column; the handwheel body is made of rubber; the third rotating shaft penetrates the handwheel body and is mounted at the center thereof, forming an integral body with the handwheel body; the rear end of the third rotating shaft is rotatably mounted on the front side of the second mounting column; the second mounting column is formed with a second through hole along its length direction; a second bolt is mounted in the second through hole, and the front end of the second bolt is mounted in the first threaded hole of the first mounting column; the outer peripheral surface of the handwheel body is directly opposite to the outer peripheral surface of the first rubber wheel; the cylindrical body of the endoscopic instrument is clamped between the first rubber wheel and the handwheel body, and the cylindrical body of the endoscopic instrument is sent into the biopsy channel of the handle of the endoscope by rotating the handwheel body;

[0009] When the functional head at the front end of the cylindrical body of the endoscopic instrument just enters the biopsy channel of the handle of the endoscope, the arrow-shaped indicator mark on the front side of the second gear and the first tooth of the first rotating wheel are opposite to each other; after the first tooth drives the second gear to rotate one circle, the arrow-shaped indicator mark and the first tooth are opposite to each other again, and at this time, the functional head at the front end of the cylindrical body of the endoscopic instrument reaches the front end position of the biopsy channel.

[0010] Preferably, a curved crank is integrally fixed to the front end of the third rotating shaft for driving a hand wheel body integrally fixed to the third rotating shaft to rotate.

[0011] Preferably, a positioning rod is formed on the first mounting column, and the positioning rod extends toward the second mounting column; a positioning groove is formed on the second mounting column; the cross section of the positioning rod corresponds to the cross section of the positioning groove; and the positioning rod can be slidably inserted into the positioning groove.

[0012] Preferably, the positioning groove is a dovetail groove.

[0013] Preferably, arc-shaped grooves are formed on the outer circumference of the handwheel body and the outer circumference of the first rubber wheel respectively; the cylindrical body of the endoscopic instrument is clamped between the arc-shaped grooves on the outer circumference of the handwheel body and the outer circumference of the first rubber wheel.

[0014] Preferably, lugs are formed on the front and rear sides of the first coupling member, and each lug is formed with a third through hole;

[0015] The first bolts are respectively formed on the front and rear sides of the second combining member, and are correspondingly inserted into the third through holes on the front and rear sides of the first combining member, and are fixed by nuts.

[0016] The endoscopic instrument pushing device of the present application can push the cylindrical main body of the endoscopic instrument to move quickly in the biopsy channel of the endoscope by rotating the handwheel body through a crank. When the functional head at the front end of the main body of the endoscopic instrument reaches the front end position of the biopsy channel and is about to emerge from the biopsy channel, the arrow-shaped indicator mark on the front side of the second gear is aligned with the first tooth of the first rotating wheel for the second time, thereby providing instructions for the operator, so that the operator can slow down the pushing speed of the instrument, so that the functional head of the instrument slowly extends from the biopsy channel, and performs a predetermined operation on the predetermined part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 , 2 This is a schematic diagram of the three-dimensional structure of the endoscopic instrument pushing device of the present application;

[0018] Figure 3 This is a schematic diagram of the main structure of the endoscopic instrument pushing device of the present application;

[0019] Figure 4 It is a rear view structural schematic diagram of the endoscopic instrument pushing device of the present application;

[0020] Figure 5 This is a schematic diagram of the top view of the structure of the endoscopic instrument pushing device of the present application;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the first combining member of the endoscopic instrument pushing device of the present application;

[0022] Figure 7 for Figure 6 A side structural schematic diagram of a first combining member;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the second combining member of the endoscopic instrument pushing device of the present application;

[0024] Fig. 9 for Figure 8 A schematic diagram of the main structure of the second combining member;

[0025] Fig.10for Figure 8 A schematic top view of the structure of the second combining member;

[0026] Fig.11 for Figure 8 A side structural schematic diagram of a second combining member;

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the hand wheel component of the endoscopic instrument pushing device of the present application;

[0028] Fig.13 for Fig.12 A rear view structural diagram of a hand wheel component;

[0029] Fig.14 for Fig.12 Schematic diagram of the top view structure of the handwheel component. DETAILED DESCRIPTION

[0030] Below, the endoscopic instrument pushing device of the present application is described in detail with reference to the accompanying drawings.

[0031] The endoscopic instrument pushing device of the present application includes: a first combining component 10 , a second combining component 20 , and a hand wheel component 30 .

[0032] The cross section of the first coupling member 10 is "C" shaped, and is used to buckle on the first side of the operating handle of the endoscope; the cross section of the second coupling member 20 is "]" shaped, and is used to buckle on the second side of the operating handle of the endoscope.

[0033] The first combining member 10 and the second combining member 20 are combined together by first bolts 21a and 21b, and are fixed on the operating handle of the endoscope, and are located above the biopsy channel of the endoscope.

[0034] The second side of the second coupling member 20 is formed as an inclined surface, and a first mounting column 25 is formed at the rear of the second side of the second coupling member 20 ; the first mounting column 15 is perpendicular to the second side of the second coupling member 20 ; and a first threaded hole 25 b is formed along the length direction of the first mounting column 25 .

[0035] A mounting wall 22 is formed at the front portion of the second side of the second coupling member 20; the mounting wall 22 is perpendicular to the second side of the second coupling member 20; the first rotating shaft 23 is rotatably mounted between the first mounting column 25 and the mounting wall 22; the first rotating shaft 23 is perpendicular to the axial direction of the first threaded hole 25b; the front end of the first rotating shaft 23 extends to the front of the mounting wall 22; the first rubber wheel 40 is fixedly mounted on the first rotating shaft 23 and driven to rotate by the first rotating shaft 23, and the first rubber wheel 40 is located between the first mounting column 25 and the mounting wall 22; the first rotating wheel 50 is fixedly mounted on the front end of the first rotating shaft 23 and driven to rotate by the first rotating shaft 23. A first tooth is formed on the outer circumferential surface of the first rotating wheel 50; a second rotating shaft 24 is rotatably mounted on the front side of the mounting wall 22, and the second rotating shaft 24 is parallel to the first rotating shaft 23; a second gear 60 is fixedly mounted on the front end of the second rotating shaft 24, and second teeth are distributed along the circumference of the second gear 60; the first tooth can mesh with the second teeth on the outer circumference of the second gear 60, thereby driving the second gear 60 to rotate; an arrow-shaped indicator mark 62 is formed on the front side of the second gear 60.

[0036] The handwheel component 30 includes a handwheel body and a second mounting column 32; the handwheel body is made of rubber; the third rotating shaft penetrates the handwheel body and is installed at the center thereof, forming an integral body with the handwheel body; the rear end of the third rotating shaft is rotatably installed at the front side of the second mounting column 32; the second mounting column 32 is formed with a second through hole along its length direction; a second bolt 33 is installed in the second through hole, and the front end of the second bolt 33 is installed in the first threaded hole 25b of the first mounting column 25; the outer peripheral surface of the handwheel body is directly opposite to the outer peripheral surface of the first rubber wheel 40; the cylindrical main body 70 of the endoscopic instrument is clamped between the first rubber wheel 40 and the handwheel body, and the cylindrical main body 70 of the endoscopic instrument is sent into the biopsy channel of the handle of the endoscope by rotating the handwheel body.

[0037] When the functional head at the front end of the cylindrical body 60 of the endoscopic instrument just enters the biopsy channel of the handle of the endoscope, the arrow-shaped indicator mark 61 on the front side of the second gear 60 and the first tooth of the first rotating wheel 50 are opposite to each other; when the first tooth drives the second gear 60 to rotate one circle, the arrow-shaped indicator mark 61 and the first tooth are opposite to each other again, and at this time, the functional head at the front end of the cylindrical body of the endoscopic instrument reaches the front end position of the biopsy channel. It should be noted here that the number of teeth of the second gear is the ratio of the safe length of the cylindrical body 70 of the endoscopic instrument in the biopsy channel of the endoscope (i.e., the distance from the functional head entering the biopsy channel to the functional head reaching the front end position of the biopsy channel (not exposed from the biopsy channel)) to the circumference of the first rotating wheel; if the safe length is 1 meter and the circumference of the outer peripheral surface of the first rotating wheel is 10 centimeters, then the main body 70 advances 10 centimeters in the biopsy channel for each rotation of the first rotating wheel; in this way, the first rotating wheel rotates 10 times and the second gear rotates one circle. At this time, the arrow-shaped indicator mark 61 is realigned with the first tooth, the cylindrical body 70 of the endoscopic instrument travels 1 meter in the biopsy channel, and the functional head reaches the front end position of the biopsy channel.

[0038] The front end of the third rotating shaft is integrally fixed with a curved crank 31, which is used to drive the hand wheel body integrally fixed with the third rotating shaft to rotate. The curved crank 31 is provided to more conveniently rotate the hand wheel body.

[0039] A positioning rod 25a is formed on the first mounting column 25, and the positioning rod 25a extends toward the second mounting column 32. A positioning groove 32a is formed on the second mounting column 32. The cross section of the positioning rod 25a corresponds to the cross section of the positioning groove 32a. The positioning rod 25a can be slidably inserted into the positioning groove 32a. The positioning groove 32a is a dovetail groove. The positioning rod 25a and the positioning groove 32a are provided to prevent the first mounting column 25 and the second mounting column 32 from being deflected.

[0040] Arc-shaped grooves are formed on the outer circumference of the handwheel body and the outer circumference of the first rubber wheel respectively; the cylindrical body 70 of the endoscopic instrument is clamped between the arc-shaped grooves on the outer circumference of the handwheel body and the outer circumference of the first rubber wheel.

[0041] Lugs 11a and 11b are formed on the front and rear sides of the first coupling member 10, respectively, and a third through hole is formed on each lug;

[0042] The first bolts 21a and 21b are respectively formed on the front and rear sides of the second coupling member 20, and are correspondingly inserted into the third through holes on the front and rear sides of the first coupling member and fixed by nuts.

[0043] When in use, the endoscopic instrument pushing device of the present application is installed on the operating handle of the endoscope through the first coupling member and the second coupling member. Loosen the second bolt 33, insert the main body 70 of the endoscopic instrument between the first rubber wheel 40 and the outer peripheral surface of the handwheel body, and insert the functional head at the front end of the main body of the endoscopic instrument into the biopsy channel. At this time, the first tooth of the first rotating wheel is aligned with the arrow-shaped indicator mark 61 of the second gear, as shown in FIG. Fig. 9 As shown; re-tighten the second bolt 33 so that the main body 70 of the endoscope instrument will not slip between the first rotating wheel and the handwheel body when the handwheel rotates, so that the handwheel body rotates, the main body 70 of the endoscope instrument can be pushed, and at the same time, the first rubber wheel 40 rotates with the movement of the main body 70 of the endoscope instrument, and the first rotating shaft 23 fixedly connected to the first rubber wheel 40 drives the first rotating wheel 50 connected thereto to rotate; every time the first rotating wheel 50 rotates one circle, the first tooth on its outer circumference will drive the second gear 60 to rotate one tooth pitch. When the arrow-shaped indicator mark 61 of the second gear rotates one circle and re-aligns with the first tooth of the first rotating wheel, the front end of the main body of the endoscope instrument just reaches the front end position of the biopsy channel, but does not extend from the biopsy channel; at this time, loosen the second bolt 33 again, and the operator gently pushes the inserted endoscope instrument by hand, so that the functional head slowly extends from the biopsy channel, so that the surrounding tissue will not be accidentally stabbed.

Claims

1. An endoscopic instrument pushing device, characterized in that include: A first combining member, a second combining member, and a hand wheel component; The first coupling member has a "C"-shaped cross section and is used to be buckled on a first side of the operating handle of the endoscope; The second combining member has a cross section in the shape of "]", and is used to be buckled on the second side of the operating handle of the endoscope; the first combining member and the second combining member are combined together by a first bolt, and are fixed on the operating handle of the endoscope, and are located above the biopsy channel of the endoscope; The second side of the second coupling member is formed as an inclined surface, and a first mounting column is formed at the rear of the second side of the second coupling member; the first mounting column is perpendicular to the second side of the second coupling member; and a first threaded hole is formed along the length direction of the first mounting column; A mounting wall is formed at the front part of the second side of the second combining member; the mounting wall is perpendicular to the second side of the second combining member; the first rotating shaft can be rotatably mounted between the first mounting column and the mounting wall; the first rotating shaft is perpendicular to the axial direction of the first threaded hole; the front end of the first rotating shaft extends to the front of the mounting wall; the first rubber wheel is fixedly mounted on the first rotating shaft and is driven to rotate by the first rotating shaft, and the first rubber wheel is located between the first mounting column and the mounting wall; the first rotating wheel is fixedly mounted on the front end of the first rotating shaft and is driven to rotate by the first rotating shaft; a first tooth is formed on the outer peripheral surface of the first rotating wheel; a second rotating shaft is rotatably mounted on the front side of the mounting wall, and the second rotating shaft is parallel to the first rotating shaft; a second gear is fixedly mounted on the front end of the second rotating shaft, and second teeth are distributed along the peripheral surface of the second gear; the first tooth can mesh with the second tooth on the outer periphery of the second gear, thereby driving the second gear to rotate; an arrow-shaped indicator mark is formed on the front side of the second gear; The handwheel component comprises a handwheel body and a second mounting column; the handwheel body is made of rubber; the third rotating shaft penetrates the handwheel body and is mounted at the center thereof, forming an integral body with the handwheel body; the rear end of the third rotating shaft is rotatably mounted on the front side of the second mounting column; the second mounting column is formed with a second through hole along its length direction; a second bolt is mounted in the second through hole, and the front end of the second bolt is mounted in the first threaded hole of the first mounting column; the outer peripheral surface of the handwheel body is directly opposite to the outer peripheral surface of the first rubber wheel; the cylindrical body of the endoscopic instrument is clamped between the first rubber wheel and the handwheel body, and the cylindrical body of the endoscopic instrument is sent into the biopsy channel of the handle of the endoscope by rotating the handwheel body; When the functional head at the front end of the cylindrical body of the endoscopic instrument just enters the biopsy channel of the handle of the endoscope, the arrow-shaped indicator mark on the front side of the second gear and the first tooth of the first rotating wheel are opposite to each other; after the first tooth drives the second gear to rotate one circle, the arrow-shaped indicator mark and the first tooth are opposite to each other again, and at this time, the functional head at the front end of the cylindrical body of the endoscopic instrument reaches the front end position of the biopsy channel.

2. The endoscopic instrument pushing device according to claim 1, characterized in that: A curved crank is integrally fixed to the front end of the third rotating shaft for driving a hand wheel body integrally fixed to the third rotating shaft to rotate.

3. The endoscopic instrument pushing device according to claim 1, characterized in that: A positioning rod is formed on the first mounting column and extends toward the second mounting column; a positioning groove is formed on the second mounting column; the cross section of the positioning rod corresponds to the cross section of the positioning groove; and the positioning rod can be slidably inserted into the positioning groove.

4. The endoscopic instrument pushing device according to claim 3, characterized in that: The positioning groove is a dovetail groove.

5. The endoscopic instrument pushing device according to claim 1, characterized in that: Arc grooves are formed on the outer circumference of the hand wheel body and the outer circumference of the first rubber wheel respectively; the cylindrical body of the endoscopic instrument is clamped between the arc grooves on the outer circumference of the hand wheel body and the outer circumference of the first rubber wheel.

6. The endoscopic instrument pushing device according to claim 1, characterized in that: Lugs are formed on the front and rear sides of the first combining member, and each lug is formed with a third through hole; The first bolts are respectively formed on the front and rear sides of the second combining member, and are correspondingly inserted into the third through holes on the front and rear sides of the first combining member, and are fixed by nuts.

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