WO2023216711A1

WO2023216711A1 - Disposable section and reusable section of endoscope handle and endoscope

Info

Publication number: WO2023216711A1
Application number: PCT/CN2023/081431
Authority: WO
Inventors: 周震华; 崔华星
Original assignee: 上海众芯工业产品设计有限公司
Priority date: 2022-05-07
Filing date: 2023-03-14
Publication date: 2023-11-16
Also published as: CN115024675A; CN115024675B

Abstract

The present invention is suitable for the technical field of endoscopes, and provides a disposable section and a reusable section of an endoscope handle and an endoscope. The disposable section comprises a housing, the distant end of the housing being connected with an endoscope insertion tube, the proximal end of the housing being provided with a connecting part, and the connecting part being used for being detachably connected with the reusable section of the handle; and a reverse moving assembly, comprising a reversing mechanism, a first push rod and a second push rod. The first push rod and the second push rod are connected with the reversing mechanism, and the distant ends of the first push rod and the second push rod are connected with a first traction rope and a second traction rope which drive an active bending part to bend, respectively. The proximal ends of the first push rod and the second push rod are used for abutting against a driving rod in the reusable section of the handle. When any one of the first push rod or the second push rod is forced to move in a first preset direction, the other one of the first push rod or the second push rod moves in a direction opposite to the first preset direction. According to the present invention, only the housing of the disposable section needs to be in butt joint with an outer shell of the reusable section, thereby facilitating the disassembly and assembly.

Description

Disposable section, reusable section of endoscope handle and endoscope

Technical field

The invention belongs to the technical field of endoscopes, and relates to a disposable section of an endoscope handle, a reusable section of an endoscope handle, and in particular to an endoscope.

Background technique

An endoscope is a device that detects the body cavity environment by inserting an insertion part with at least lighting and photographing functions into the natural passage of the human body or the opening of the surgical area, and operates a handle located outside the human body to view the endoscope. The active bending part at the front end of the mirror insertion part adjusts the bending angle so that it can deflect in a predetermined direction, helping people obtain observations within a wider viewing angle range.

In addition, the insertion part of the endoscope is usually provided with an instrument channel. During the detection or treatment of the body cavity environment, excess fluid accumulation in the internal tissues of the human body needs to be aspirated, and the accumulated fluid is exported to the outside of the body through the instrument channel. , In addition, the instrument channel is also used for external instruments, such as biopsy forceps extending into the body cavity along the instrument channel. After reaching the target tissue, part of the human tissue is taken for biopsy detection.

Therefore, when the insertion part is inserted into the human body, the external and internal instrument channels are seriously contaminated. The common practice is to discard the insertion part and the handle as a whole. Therefore, the cost is high, and it is difficult for patients to support the high cost of equipment; in addition, for To solve the above cost problem, the existing technology splits the handle into a disposable part and a reusable part. However, the docking process of the disposable part and the reusable part in the existing technology is relatively complicated, which increases the number of steps for doctors during the operation. medium difficulty.

Contents of the invention

The object of the present invention is to provide a disposable section of an endoscope handle to solve the problem of the high cost of discarding the entire endoscope handle in the prior art and to facilitate docking operations. The disposable section of the endoscope handle of the present invention ,include:

A housing, the distal end of the housing is connected to the endoscope insertion tube, the proximal end of the housing has a connecting portion, the connecting portion is used for detachable connection with the reusable section of the handle;

The reverse movement assembly includes a reversing mechanism, a first push rod and a second push rod. The first push rod and the second push rod are connected to the reversing mechanism, and the first push rod and the second push rod are connected to the reversing mechanism. The distal end of the second push rod is respectively connected to the first traction rope and the second traction rope that drive the active bending portion to bend;

The proximal ends of the first push rod and the second push rod are provided at the proximal end of the housing, and the proximal ends of the first push rod and the second push rod are used to communicate with the handle. abutment of the drive rod within the reusable section;

When any one of the first push rod and the second push rod is forced to move in the first predetermined direction, the other of the first push rod and the second push rod moves in the desired direction under the action of the reversing mechanism. move in the opposite direction to the first predetermined direction.

Preferably, the reversing mechanism includes:

A first transmission wheel and a first flexible connection member. The first flexible connection member surrounds the first transmission wheel, and the two ends of the first flexible connection member are connected to the first push rod and the second push rod respectively. Push rod connection;

The first transmission wheel is rotatably mounted on the housing.

Preferably, it also includes a pre-tightening mechanism, which includes:

a second transmission wheel, the second transmission wheel is rotatably mounted on the distal end of the housing;

A second flexible connection member surrounds the second transmission wheel, and both ends of the second flexible connection member are connected to the first push rod and the second push rod respectively.

Preferably,

The first push rod and the second push rod are both provided with mounting parts;

First connectors are respectively provided at both ends of the first flexible connector, and the first connectors are detachably installed at the proximal end of the installation portion of the first push rod and the proximal end of the installation portion of the second push rod. end;

And/or second connectors are respectively provided at both ends of the second flexible connector, and the second connectors are detachably installed at the distal end of the installation portion of the first push rod and the installation of the second push rod. distal end.

Preferably, it also includes a pre-tightening mechanism, the pre-tightening mechanism includes: a first elastic piece and a second elastic piece, one ends of the first elastic piece and the second elastic piece are installed at the distal end of the housing, so The other ends of the first elastic member and the second elastic member are respectively installed on the first push rod and the second push rod.

Preferably, it also includes a pre-tightening mechanism, which includes: a third elastic piece and a fourth elastic piece, one ends of the third elastic piece and the fourth elastic piece are installed at the proximal end of the housing, so The other ends of the third elastic member and the fourth elastic member are respectively installed on the first push rod and the second push rod.

Preferably, the reverse movement components are in two sets and are arranged in the housing.

Another object of the present invention is to provide a reusable section of an endoscope handle. The above-mentioned disposable section of the endoscope handle can be detachably installed on the reusable section.

Preferably,

Any one of the proximal ends of the first push rod and the second push rod and the distal end of the drive rod in the endoscope handle is provided with a magnetic component,

The other one of the proximal ends of the first push rod and the second push rod and the distal end of the drive rod in the endoscope handle is provided with an adsorption member that is adsorbed and connected to the magnetic member. .

The present invention also provides an endoscope, including the above-mentioned disposable section and the reusable section of the endoscope handle.

Beneficial effects:

1. In the present invention, in the above-mentioned docking of the disposable section and the reusable section, it is only necessary to dock the shell of the disposable section with the shell of the reusable section. After docking, the first push rod and the second push rod are connected. The push rod is in contact with the first driving rod and the second driving rod respectively, and there is no need to snap or otherwise connect the first push rod and the second push rod with the first driving rod and the second driving rod respectively. Because snap-on or other contact-like connection methods are used, the subsequent disassembly process will be more troublesome. Not only do you need to disconnect the disposable segment housing and the reusable segment housing, but you also need to disconnect the first push rod and the second push rod. The rods are connected to the first driving rod and the second driving rod respectively. Excessive force during operation can easily damage the first push rod and the second push rod located on the reusable section. The snap-on structure of the connection leads to damage to the reusable segment, so the purpose of cost saving is not achieved.

2. In the present invention, the pre-tightening mechanism can make the first push rod and the second push rod in a relatively tight state instead of a relaxed state, thereby improving the accuracy of the docking between the reusable section and the disposable section and preventing In the relaxed state, a gap is formed between the reusable section and the disposable section, which affects the bending process of the active bending part to a stagnant state, thus affecting the precision control of the deflection angle.

3. In the present invention, the first elastic member and the second elastic member are connected to the first push rod and the second push rod respectively, thereby achieving the effect of preloading the first push rod and the second push rod. The elastic member is used, such as The advantage of the spring is that it can always provide pre-tightening force without losing the pre-tightening function due to loose cooperation between it and the housing. In addition, the installation and assembly process is simple and the installation efficiency is high.

4. In the present invention, the function of quickly aligning the reusable section and the disposable section can be achieved by arranging magnetic parts and adsorbing parts for matching connection, and after connection, the operator will be given magnetic adsorption force feedback to help the operator judge. Butt in place. Therefore, its docking efficiency is high and its stability is strong, and the disassembly and assembly process will not cause damage to other parts.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to be used in describing the embodiments of the present invention or the prior art will be briefly introduced below. Obviously, the drawings described below are only illustrative of the present invention. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the disassembly state of the reusable section and the disposable section of the endoscope handle provided by the present invention;

Figure 2 is a schematic diagram of the connection state between the reusable section and the disposable section of the endoscope handle provided by the present invention;

Figure 3 is a schematic structural diagram of the disposable section of the endoscope handle provided by the present invention;

Figure 4 is a schematic diagram of the internal structure of the disposable section of the endoscope handle provided by the present invention;

Figure 5 is a first schematic diagram of the structure of the elastic member of the disposable segment of the endoscope handle provided by the present invention;

Figure 6 is a second schematic diagram of the structure of the elastic member of the disposable segment of the endoscope handle provided by the present invention;

Figure 7 is a schematic structural diagram of a reusable segment of an endoscope handle provided by the present invention;

Figure 8 is a schematic diagram of the internal structure of the reusable section of the endoscope handle provided by the present invention;

Figure 9 is a schematic structural diagram of the working state of the reusable section of the endoscope handle provided by the present invention;

Figure 10 is a schematic structural diagram of the chute of the reusable section of the endoscope handle provided by the present invention;

Figure 11 is a schematic diagram of the partially disassembled structure of the reusable section of the endoscope handle provided by the present invention;

Figure 12 is a partial exploded schematic diagram of the reusable section of the endoscope handle provided by the present invention.

In the attached picture:
10. Reusable section; 11. First driving mechanism; 110. Second driving gear; 12. Second driving mechanism; 1022. First sliding block; 1023. First round cone; 1024. First card slot; 1012. Second sliding block; 1013, second circular cone; 1014, second slot; 120, first driving gear; 130, first gear plate; 140, second gear plate; 131, second chute; 132, first Chute; 101. Fourth driving rod; 102. Second driving rod; 103. Third driving rod; 1031. Fourth sliding block; 104. First driving rod; 1041. Third sliding block; 15. First bolt ; 16. Support plate; 160. First mounting hole; 161. Third mounting hole; 162. Fourth mounting hole; 163. Second mounting hole; 17. Fixing plate; 171. Second strip hole; 172. A strip of hole; 18, mounting plate; 20, disposable section; 201, second push rod; 202, first push rod; 203, fourth push rod; 204, third push rod; 21, housing; 22 , the first transmission wheel; 221, the first rotation shaft; 220, the first annular groove; 2201, the first flexible connector; 2202, the first connector; 23, the second transmission wheel; 231, the second rotation shaft; 230 , the second annular groove; 2301, the second flexible connector; 2302, the second connector; 24, the second traction rope; 25, the first traction rope; 26, the fourth traction rope; 27, the third traction rope; 200 , mounting part; 281, fourth elastic member; 282, third elastic member; 292, first elastic member; 291, second elastic member.

Detailed ways

The following description provides many different embodiments, or examples, for implementing various features of the invention. The components and arrangements described in the following specific examples are only used to concisely express the present invention. They are only used as examples and are not intended to limit the present invention.

In the present invention, "proximal end" and "distal end" refer to the far and near position of the structure relative to human body operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; "proximal end" The positional relationship with "remote" is relative, not absolute.

As shown in FIGS. 1 and 2 , the present invention provides a disposable segment 20 of an endoscope handle to solve the high cost of discarding the entire endoscope handle in the prior art and facilitate docking operations. As shown in Figure 3 and Figure 4, the disposable section 20 of the endoscope handle of the present invention includes:

Housing 21, the distal end of the housing 21 is connected to the endoscope insertion tube (not shown in the drawings), the proximal end of the housing 21 has a connection part, the connection part is used for reusable use with the handle The section 10 is detachably connected, combined with the disassembly direction and installation direction (a, -a) in Figures 1 and 2; in addition, what is shown in the drawing is part of the support structure of the housing 21, for the purpose of showing the housing 21 internal components.

The reverse movement assembly includes a reversing mechanism, a first push rod 202 and a second push rod 201. The first push rod 202 and the second push rod 201 are connected to the reversing mechanism, and the first push rod 202 and the second push rod 201 are connected to the reversing mechanism. The distal ends of the push rod 202 and the second push rod 201 are respectively connected to the first traction rope 25 and the second traction rope 24 that drive the active bending portion to bend; under the movement of the first push rod 202 and the second push rod 201, The first traction rope 25 and the second traction rope 24 are driven to bend in both forward and reverse directions on one plane; in addition, in the present invention, in order to realize the bending of the active bending part on more planes, the reverse moving assembly There are two sets, and they are arranged in the housing 21. The number of reverse moving components is not limited.

Specifically, the second set of reverse movement components also includes a reversing mechanism, a third push rod 204 and a fourth push rod 203. The third push rod 204 and the fourth push rod 203 are in contact with the reversing mechanism. connected, and the distal ends of the third push rod 204 and the fourth push rod 203 are respectively connected to the third traction rope 27 and the fourth traction rope 26 that drive the active bending portion to bend; in the third push rod 204 and the fourth The movement of the push rod 203 drives the third traction rope 27 and the fourth traction rope 26 to bend in both positive and negative directions on another plane.

In the first preferred embodiment of the present invention, the reversing mechanism includes:

The first transmission wheel 22 and the first flexible connection member 2201 , wherein the first flexible connection member 2201 surrounds the first transmission wheel 22 , and the specific first flexible connection member 2201 is accommodated in the first transmission wheel 22 in the first annular groove 220 on the first flexible connector 2201, and the two ends of the first flexible connector 2201 are respectively connected to the first push rod 202 and the second push rod 201. The connection method may be welding, snapping or screwing. etc.; and, the first transmission wheel 22 is rotatably mounted on the housing 21 through a first rotation shaft 221 . Among them, the connection relationship between the first flexible connector 2201 and the first transmission wheel 22 can be a rope transmission, a belt transmission, a sprocket transmission, etc. In essence, the first flexible connector 2201 and the first transmission wheel 22 are cooperatively connected to each other for transmission. The movement directions of the first push rod 202 and the second push rod 201 are changed during the process of force. Therefore, based on this principle, any form of connection between the first flexible connector 2201 and the first transmission wheel 22 belongs to the present invention. The solutions are the same or equivalent.

In other embodiments, the disposable segment 20 further includes a pretensioning mechanism, the pretensioning mechanism includes:

a second transmission wheel 23, which is rotatably mounted on the distal end of the housing 21 through a second rotation shaft 231;

The second flexible connection member 2301 surrounds the second transmission wheel 23. Specifically, the second flexible connection member 2301 is accommodated in the second annular groove of the second transmission wheel 23. 230, and both ends of the second flexible connecting member 2301 are connected to the first push rod 202 and the second push rod 201 respectively.

Therefore, based on the above-mentioned preloading mechanism, the first transmission wheel 22, the second transmission wheel 23, the first flexible connection member 2201, the second flexible connection member 2301, the first push rod 202 and the second push rod 201 are formed in a closed loop. On the force drive circuit, the pre-tightening mechanism can make the first push rod 202 and the second push rod 201 in a relatively tight state rather than a relaxed state, thereby improving the efficiency of the docking between the reusable section 10 and the disposable section 20. The precision prevents a gap from forming between the reusable section 10 and the disposable section 20 in the relaxed state, which affects the stagnation state in the bending process of the active bending part, thus affecting the precision control of the deflection angle.

As shown in Figure 3 and Figure 4, the first push rod 202, the second push rod 201, the third push rod 204 and the fourth push rod 203 are each provided with a mounting portion 200; the first push rod 202, The second push rod 201, the third push rod 204 and the fourth push rod 203 can be integrally connected with the mounting part 200, or detachably connected. The detachable connection method can facilitate the first push rod 202 and the second push rod. 201. Assembly of the third push rod 204 and the fourth push rod 203.

As shown in FIG. 4 , first connectors 2202 are respectively provided at both ends of the first flexible connector 2201 . The first connectors 2202 are detachably installed near the mounting portion 200 of the first push rod 202 . end and the proximal end of the mounting portion 200 of the second push rod 201; and/or second connectors 2302 are respectively provided at both ends of the second flexible connector 2301, and the second connectors 2302 are respectively detachably installed on the The distal end of the mounting portion 200 of the first push rod 202 and the distal end of the mounting portion 200 of the second push rod 201 are described. In this embodiment, the first connecting member 2202 and the second connecting member 2302 are threadedly connected to the first push rod 202 and the second push rod 201 respectively. Of course, the first connecting member 2202 can also be connected to the first push rod 202 and the second push rod 201 . The two push rods 201 are threadedly connected, or the second connecting member 2302 is threadedly connected to the first push rod 202 and the second push rod 201 . During the connection process, the pretightening force is adjusted by adjusting the tightness of the first connecting member 2202 and/or the second connecting member 2302 and the first push rod 202 and the second push rod 201 .

Please refer to Figure 5 and Figure 6. In the second preferred embodiment of the present invention, another pre-tightening mechanism is also included. The pre-tightening mechanism includes: a first elastic member 292 and a second elastic member 291, One end of the first elastic member 292 and the second elastic member 291 is installed on the distal end of the housing 21, and the other ends of the first elastic member 292 and the second elastic member 291 are respectively installed on the first push button. rod 202 and the second push rod 201. The first elastic member 292 and the second elastic member 291 are connected to the first push rod 202 and the second push rod 201 respectively, thereby achieving the effect of pre-tightening the first push rod 202 and the second push rod 201. The elastic member is used, such as The advantage of the spring is that it can always provide pre-tightening force without losing the pre-tightening function due to loose cooperation between it and the housing 21. In addition, the installation and assembly process is simple and the installation efficiency is high.

Further, the pretensioning mechanism includes: a third elastic member 282 and a fourth elastic member 281. One ends of the third elastic member 282 and the fourth elastic member 281 are installed at the proximal end of the housing 21. The other ends of the third elastic member 282 and the fourth elastic member 281 are installed on the first push rod 202 and the second push rod 201 respectively. The third elastic member 282 and the fourth elastic member 281 have the same functions and effects as the above-mentioned first elastic member 292 and the second elastic member 291, and will not be described again here.

Please refer to FIGS. 1 and 2 , the proximal ends of the first push rod 202 and the second push rod 201 are disposed at the proximal ends of the housing 21 , and the first push rod 202 and the The proximal end of the second push rod 201 is used to contact the driving rod in the reusable section 10 of the handle; specifically, regarding the structure of the reusable section 10 of the handle, please refer to Figure 7. The use section 10 includes a first driving rod 104 and a second driving rod 102 for pushing the first push rod 202 and the second push rod 201, and is also provided with a driving rod on the handle to drive the first driving rod 104 and the second driving rod. The first driving mechanism 11 of 102; or when the active bending part has a bending rotation in another direction, the reusable section 10 also includes a third driving rod 103 and a third push rod 204 and a fourth push rod 203 for pushing the third push rod 204 and the fourth push rod 203. There are four driving rods 101, and the handle is also provided with a second driving mechanism 12 that drives the third driving rod 103 and the fourth driving rod 101; wherein the first driving mechanism 11 and the second driving mechanism 12 include but are not limited to thumb wheels, Lever and spin wheel or linear push button.

Please refer to Figures 1, 2 and 7 and 8. When the disposable section 20 and the reusable section 10 are docked, the operator can arbitrarily choose to drive the first driving mechanism 11 and/or the second driving mechanism 12 to achieve adjustment. The active bending portion bends; in this embodiment, the first driving rod 104 abuts and corresponds to the first push rod 202, and the second driving rod 102 abuts and corresponds to the second push rod 201; please refer to Figure 9, In one case, when the first driving rod 104 contacts the first push rod 202 and is forced to move in the first predetermined direction under the driving action of the above-mentioned driving mechanism; at this time, the second driving rod 102 and the second push rod 201 move along the first predetermined direction. The opposite direction of the predetermined direction is forced to move, so that the first traction rope 25 and the second traction rope 24 connected to the distal ends of the first push rod 202 and the second push rod 201 move, thereby driving the active bending part to deflect at the preset direction bending; in addition, in the second case, the second driving rod 102 contacts the second push rod 201 and is forced to move in the first predetermined direction under the driving action of the above-mentioned driving mechanism; at this time, the first driving rod 104 and the first The push rod 202 is forced to move in the opposite direction of the first predetermined direction, so that the first traction rope 25 and the second traction rope 24 connected to the distal ends of the first push rod 202 and the second push rod 201 are in contact with each other in the above first situation. Move in the opposite direction, thereby driving the active bending part to bend in another preset deflection direction. In the above-mentioned docking of the disposable section 20 and the reusable section 10, it is only necessary to dock the shell 21 of the disposable section 20 with the shell of the reusable section 10. After docking, the first push rod 202 and the second push rod 202 are connected. The push rod 201 is in contact with the first drive rod 104 and the second drive rod 102 respectively, and there is no need to lock the first push rod 202 and the second push rod 201 with the first drive rod 104 and the second drive rod 102 respectively. connection or other forms of connection, because the use of snap-in or other contact-like connection methods will be more troublesome in the subsequent disassembly process. Not only does it need to disconnect the shell 21 of the disposable section 20 and the shell 21 of the reusable section 10, It is also necessary to disconnect the first push rod 202 and the second push rod 201 from the first drive rod 104 and the second drive rod 102 respectively. Excessive force during operation can easily damage the first push rod located on the reusable section 10 202 and the second push rod 201 are connected to the first driving rod 104 and the second driving rod 102 respectively, thereby causing damage to the reusable section 10, so the purpose of cost saving is not achieved.

Specifically, regarding the reusable section 10, please refer to Figures 7 to 11. The reusable section 10 is also provided with a first adjustment mechanism for adjusting the movement of the first drive rod 104 and the second drive rod 102. The first adjustment mechanism includes a first gear plate 130 rotatably mounted on the mounting plate 18 through a first bolt 15 . The first gear plate 130 cooperates with the first drive gear 120 installed on the rotation axis of the first drive mechanism 11 connected, and a first chute 132 and a second chute 131 are symmetrically provided on both sides of the first gear plate 130, and a first sliding block 1022 is fixedly installed at the rear end of the first driving rod 104 and the second driving rod 102. and the second sliding block 1012, and the first circular cone 1023 and the second circular cone 1013 are respectively protruded in the axial direction of the first sliding block 1022 and the second sliding block 1012, and are formed between the first circular cone 1023 and the first sliding block 1022 The first latching slot 1024, the second truncated cone 1013 and the second sliding block 1012 form a second latching slot 1014. The first sliding block 1022 and the second sliding block 1012 are accommodated by the first latching slot 1024 and the second latching slot 1014 respectively. Being installed in the first slide groove 132 and the second slide groove 131 can prevent the first sliding block 1022 and the second sliding block 1012 from sliding down in the axial direction when the first gear plate 130 is driven by the first driving gear 120 , the first gear plate 130 rotates around the first bolt 15. At this time, the first chute 132 and the second chute 131 rotate synchronously. Specifically, when the second chute 131 moves toward the first chute 132, it can be reused. The distal end of the segment 10 moves. At this time, the bottom of the second chute 131 pushes the second sliding block 1012 to move toward the distal end of the reusable segment 10, thereby causing the second driving rod 102 to push the second push rod 201 toward the reusable segment 10. The distal end of the discard section 20 moves. At the same time, the first push rod 202 pushes the first driving rod 104 to move toward the proximal end of the reusable section 10. The first chute 132 is the first slide block moving toward the reusable section. The proximal movement of 10 provides room for displacement.

In order to realize the bending function of the active bending part in multiple directions, the reusable segment 10 is also provided with a second adjustment mechanism for adjusting the movement of the third drive rod 103 and the fourth drive rod 101. The second adjustment mechanism includes a The second bolt is rotatably mounted on the second gear plate 140 on the mounting plate 18 . The second gear plate 140 is cooperatively connected with the second driving gear 110 installed on the rotation axis of the second driving mechanism 12 , and in the second A third chute and a fourth chute are symmetrically provided on both sides of the gear plate 140, and a third sliding block 1041 and a fourth sliding block 1031 are respectively fixedly installed at the rear ends of the third driving rod 103 and the fourth driving rod 101. The third sliding block 1041 and the fourth sliding block 1031 are respectively accommodated and installed in the third chute and the fourth chute (the same as the first chute 132 and the second chute 131, not shown here). When the second gear plate 140 is driven by the second driving gear 110, the second gear plate 140 rotates around the second bolt. At this time, the third chute and the fourth chute rotate synchronously. Specifically, when the fourth chute is relative to The third chute moves to the far end of the reusable section 10. At this time, the bottom of the fourth chute pushes the fourth sliding block 1031 to move to the far end of the reusable section 10, thereby pushing the fourth driving rod 101 The fourth push rod 203 moves toward the distal end of the disposable section 20; at the same time, the third push rod 204 pushes the third driving rod 103 to move toward the proximal end of the reusable section 10, and the third chute is the third slide block. The proximal movement of the reusable section 10 provides room for displacement.

As shown in FIGS. 11 and 12 , in order to ensure that the first driving rod 104 , the second driving rod 102 , the third driving rod 103 and the fourth driving rod 101 move stably in a predetermined direction, the reusable segment 10 is provided in the housing. There is a fixed plate 17. The fixed plate 17 is provided with a support plate 16. The surface of the support plate 16 is perpendicular to the length direction of the first drive rod 104, the second drive rod 102, the third drive rod 103 and the fourth drive rod 101. The support plate 16 16 is provided with first mounting hole 160, second mounting hole 163, third mounting hole 161 and Fourth mounting hole 162. Wherein, the support plate 16 can be disposed at the distal end or the proximal end of the reusable section 10. When the support plate 16 is disposed at the distal end of the reusable section 10, the first driving rod 104, the second driving rod 102, The third driving rod 103 and the fourth driving rod 101 have better stability when moving in a predetermined direction. In addition, as shown in FIG. 12 , the fixed plate 17 is provided with a first strip hole 172 and a second strip hole 171 for the third driving rod 103 and the fourth driving rod 101 to move in a predetermined direction.

Another object of the present invention is to provide a reusable section 10 of an endoscope handle. The above-mentioned disposable section 20 of the endoscope handle can be detachably installed on the reusable section 10 .

Preferably, any one of the proximal ends of the first push rod 202 and the second push rod 201 and the distal end of the driving rod in the endoscope handle is provided with a magnetic component, and the The other one of the proximal ends of the first push rod 202 and the second push rod 201 and the distal end of the driving rod in the endoscope handle is provided with an adsorption member that is adsorbed and connected to the magnetic member. . It should be noted that the magnetic components can be installed on the first push rod 202 and the second push rod 201 or the magnetic components can absorb and extend to the third push rod 204 and the fourth push rod 203 . The function of quickly aligning the reusable section 10 and the disposable section 20 can be achieved by arranging magnetic parts and adsorption parts for matching connection, and after connection, the operator will be given magnetic adsorption force feedback to help the operator judge that the docking is in place. Therefore, its docking efficiency is high and its stability is strong, and the disassembly and assembly process will not cause damage to other parts.

The present invention also provides an endoscope, including the above-mentioned disposable section 20 and the reusable section 10 of the endoscope handle.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims

A disposable section of an endoscope handle, characterized by: including

Housing (21), the distal end of the housing (21) is connected to the endoscope insertion tube, the proximal end of the housing (21) has a connection portion, the connection portion is used to connect with the reusable section of the handle ( 10) Detachable connection;

The reverse movement assembly includes a reversing mechanism, a first push rod (202) and a second push rod (201). The first push rod (202) and the second push rod (201) are in conjunction with the reversing mechanism. The mechanism is connected, and the distal ends of the first push rod (202) and the second push rod (201) are respectively connected to the first traction rope (25) and the second traction rope (24) that drive the active bending portion to bend;

The proximal ends of the first push rod (202) and the second push rod (201) are provided at the proximal end of the housing (21), and the first push rod (202) and the second push rod (201) are The proximal end of the push rod (201) is used to abut the drive rod in the reusable section (10) of the handle;

When any one of the first push rod (202) and the second push rod (201) is forced to move in a first predetermined direction, the first push rod (202) and the second push rod (201) The other one moves in the opposite direction to the first predetermined direction under the action of the reversing mechanism.
A disposable section of an endoscope handle according to claim 1, wherein the reversing mechanism includes:

The first transmission wheel (22) and the first flexible connection member (2201), the first flexible connection member (2201) surrounds the first transmission wheel (22), and the first flexible connection member (2201 ) are connected to the first push rod (202) and the second push rod (201) respectively;

The first transmission wheel (22) is rotatably mounted on the housing (21).
A disposable section of an endoscope handle according to claim 2, characterized in that it also includes a pre-tightening mechanism, and the pre-tightening mechanism includes:

a second transmission wheel (23), the second transmission wheel (23) is rotatably installed at the distal end of the housing (21);

A second flexible connection member (2301). The second flexible connection member (2301) surrounds the second transmission wheel (23), and both ends of the second flexible connection member (2301) are connected to the second transmission wheel (23) respectively. The first push rod (202) and the second push rod (201) are connected.
A disposable section of an endoscope handle according to claim 3, characterized in that:

The first push rod (202) and the second push rod (201) are both provided with mounting parts (200);

First connectors (2202) are respectively provided at both ends of the first flexible connector (2201), and the first connectors (2202) are detachably mounted on the mounting portion of the first push rod (202). (200) proximal end and the proximal end of the mounting portion (200) of the second push rod (201);

And/or second connectors (2302) are respectively provided at both ends of the second flexible connector (2301), and the second connectors (2302) are detachably mounted on the first push rod (202). The distal end of the mounting part (200) and the distal end of the mounting part (200) of the second push rod (201).
A disposable section of an endoscope handle according to claim 2, characterized by further comprising a pre-tightening mechanism, the pre-tightening mechanism comprising: a first elastic member (292) and a second elastic member (291) , one end of the first elastic member (292) and the second elastic member (291) is installed at the distal end of the housing (21), the first elastic member (292) and the second elastic member (291) The other ends are respectively installed on the first push rod (202) and the second push rod (201).
The disposable section of the endoscope handle according to claim 2, further comprising a pre-tightening mechanism, the pre-tightening mechanism comprising: a third elastic member (282) and a fourth elastic member (281) , one end of the third elastic member (282) and the fourth elastic member (281) is installed at the proximal end of the housing (21), the third elastic member (282) and the fourth elastic member (281) The other ends are respectively installed on the first push rod (202) and the second push rod (201).
A disposable section of an endoscope handle according to claim 1, characterized in that the reverse movement components are in two sets and are arranged in the housing (21).
A reusable section of an endoscope handle, characterized in that: the disposable section (20) of the endoscope handle according to any one of claims 1 to 7 can be detachably installed on the reusable section ( 10) on.
A reusable segment of an endoscope handle according to claim 8, characterized in that:

Any one of the proximal ends of the first push rod (202) and the second push rod (201) and the distal end of the driving rod in the endoscope handle is provided with a magnetic component,

The other one of the proximal ends of the first push rod (202) and the second push rod (201) and the distal end of the drive rod in the endoscope handle is provided with the magnetic The adsorption part of the adsorption connection.
An endoscope, characterized by comprising the reusable segment described in claim 8 or 9.