CN211299875U

CN211299875U - Endoscope bending mechanism and endoscope bending device

Info

Publication number: CN211299875U
Application number: CN201921844494.6U
Authority: CN
Inventors: 张磊; 张栋球; 甄勇柏
Original assignee: Guangzhou Red Pine Medical Equipment Co ltd
Current assignee: Guangzhou Red Pine Medical Equipment Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-08-21
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a bending mechanism of endoscope and endoscope device of bending through rotating first adaptor, drives the runner and rotates in first installation shell for the first regulation rope of runner rolling or second regulation rope, thereby make first regulation rope and second adjust and form the rope length difference between the rope, and then make the portion of inserting realize the bending operation. Because the bending structure and the first adapter piece are both located in the first installation shell, and the first installation shell can be dismantled with the second installation shell and be connected, therefore, make bending portion and control section in the endoscope bending device separate completely, constitute two independent structures respectively, so, after the endoscope bending device uses up, only need to separate first installation shell and second installation shell, can change the bending portion alone, make the endoscope bending device realize that partial structure changes, medical resources have been practiced thrift greatly, the use cost of endoscope is reduced, thereby alleviate the cost that the patient detected.

Description

Endoscope bending mechanism and endoscope bending device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an endoscope bending mechanism and an endoscope bending device.

Background

The endoscope is used as medical detection equipment, integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software and the like into a whole, inserts an insertion part provided with a camera into a human body, and visually observes focal tissues through the camera, so that medical staff can accurately obtain the position and real-time state of the focal tissues. In order to observe different angles of lesion tissues, the insertion part needs to be bent in a human body through a bending device, so that the lesion tissues at different angles can be shot by a camera.

The bending device generally comprises a bending part and a handle control part, and the bending part is driven through the handle control part, so that the insertion part connected to the bending part is bent, and the multi-angle shooting of the camera is completed. However, the bending portion and the handle control portion of the conventional bending device are integrally connected, and are disposable consumer products in the medical detection equipment. After once detecting the completion, traditional flexion can't be changed alone, can only change handle control portion and flexion in the lump, like this, not only lead to medical resources serious waste, but also increased the use cost of endoscope to the cost that causes patient's detection seriously increases.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for an endoscope bending mechanism and an endoscope bending device that can be replaced independently, save medical resources, reduce the cost of using an endoscope, and reduce the cost of patient testing.

The technical scheme is as follows:

an endoscope bending mechanism comprising: the first mounting shell is provided with a first adapter and a wire outlet and is used for being detachably connected with a second mounting shell on the control mechanism; the bending structure comprises a rotating wheel, and a first adjusting rope and a second adjusting rope which are respectively connected to the rotating wheel, the rotating wheel is rotatably arranged in the first mounting shell, and the first adjusting rope and the second adjusting rope are both used for being connected with the insertion part through the wire outlet; and the first adapter is rotatably arranged in the first mounting shell, one end of the first adapter is in transmission fit with the rotating wheel, and the other end of the first adapter is in transmission fit with the second adapter on the control mechanism through the first adapter.

Foretell endoscope bending mechanism through rotating first adaptor, drives the runner and rotates in first installation shell for the first regulation rope of runner rolling or the second regulation rope, thereby forms the rope length difference between the rope for the first regulation rope and the second regulation rope, and then makes the portion of inserting realize the bending operation. Because the bending structure and the first adapter piece are both located in the first installation shell, and the first installation shell can be dismantled with the second installation shell and be connected, therefore, make bending portion and control section in the endoscope bending device separate completely, constitute two independent structures respectively, so, after the endoscope bending device uses up, only need to separate first installation shell and second installation shell, can change the bending portion alone, make the endoscope bending device realize that partial structure changes, medical resources have been practiced thrift greatly, the use cost of endoscope is reduced, thereby alleviate the cost that the patient detected. Meanwhile, the first adapter is in transmission fit with the second adapter through the first adapter, so that when the first mounting shell is connected to the second mounting shell, the first adapter is in transmission fit with the second adapter, the bending part of the endoscope bending device is organically combined with the control part, functional matching is achieved, and assembling and operation of the endoscope bending device are more convenient.

The principle and effect of the present invention will be further explained by combining the above scheme:

in one embodiment, the endoscope bending mechanism further comprises a transmission structure, the transmission structure is located in the first mounting shell, and one end of the first rotating connector is in transmission fit with the rotating wheel through the transmission structure.

In one embodiment, the transmission structure comprises a first transmission tooth and a second transmission tooth which are meshed with each other, the first transmission tooth is connected to the first rotating member, and the second transmission tooth is connected to the rotating wheel.

In one embodiment, a supporting shaft is arranged in the first mounting shell, and the rotating wheel and the first transmission gear are sleeved on the supporting shaft.

In one embodiment, the first drive tooth and the second drive tooth are bevel gears.

In one embodiment, a first limiting portion is arranged at one end of the first adapter piece, which is far away from the rotating wheel, and when one end of the first adapter piece is sleeved outside or inside the second adapter piece, the first limiting portion is used for limiting and matching with a second limiting portion on the second adapter piece.

In one embodiment, the endoscope bending mechanism further comprises a first bearing, the first bearing is mounted in the first mounting shell, and the first adapter is mounted on the first bearing.

In one embodiment, the bending structure further includes a fixing member and a pressing cover, bending grooves and mounting grooves are formed in two opposite side surfaces of the rotating wheel, the fixing member is located in the mounting groove, the pressing cover is connected to the rotating wheel and covers the mounting groove, and the first adjusting rope and the second adjusting rope are respectively wound around the mounting groove from two opposite sides of the rotating wheel along the bending grooves and are both connected to the fixing member.

In one embodiment, the first mounting shell includes a first shell and a second shell, the first shell is covered on the second shell, and the outlet and the first interface are both disposed on the first shell and/or the second shell.

The utility model provides an endoscope bending device, includes control mechanism and above arbitrary one the endoscope bending mechanism, control mechanism includes the second installation shell and all rotationally installs the handle and the second adaptor of second installation shell, be equipped with the second switching mouth on the second installation shell, second adaptor one end with the handle transmission cooperation, the second adaptor other end passes through the second switching mouth with first adaptor transmission cooperation.

Foretell endoscope bending device adopts above endoscope bending mechanism, through rotating first adaptor, drives the runner and rotates in first installation shell for the first regulation rope of runner rolling or second regulation rope, thereby make first regulation rope and second regulation rope between form the rope length difference, and then make the portion of inserting realize the bending operation. Because the bending structure and the first adapter piece are both located in the first installation shell, and the first installation shell can be dismantled with the second installation shell and be connected, therefore, make bending portion and control section in the endoscope bending device separate completely, constitute two independent structures respectively, so, after the endoscope bending device uses up, only need to separate first installation shell and second installation shell, can change the bending portion alone, make the endoscope bending device realize that partial structure changes, medical resources have been practiced thrift greatly, the use cost of endoscope is reduced, thereby alleviate the cost that the patient detected. Meanwhile, the first adapter is in transmission fit with the second adapter through the first adapter, so that when the first mounting shell is connected to the second mounting shell, the first adapter is in transmission fit with the second adapter, the bending part of the endoscope bending device is organically combined with the control part, functional matching is achieved, and assembling and operation of the endoscope bending device are more convenient.

In one embodiment, the endoscope bending device further comprises a transmission member, and a third transmission gear and a fourth transmission gear which are meshed with each other, the third transmission gear is connected to the handle, the fourth transmission gear is connected to the transmission member, and one end of the transmission member, far away from the handle, is in transmission fit with the second adapter member.

In one embodiment, the endoscope bending device further comprises a rotating shaft rotatably mounted in the second mounting shell, one end of the rotating shaft is connected with the transmission member, and the other end of the rotating shaft is connected with the second adaptor.

In one embodiment, the first mounting shell is provided with a first positioning portion, and the second mounting shell is provided with a second positioning portion which is matched with the first positioning portion in a positioning manner.

In one embodiment, the second mounting shell includes a third shell and a fourth shell, the third shell is covered on the fourth shell, and the second adapter is disposed on the third shell and/or the fourth shell.

Drawings

Fig. 1 is a schematic view of an endoscope bending mechanism according to an embodiment of the present invention;

fig. 2 is an exploded view of an endoscope bending mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a first housing according to an embodiment of the present invention;

fig. 4 is an exploded view of a curved structure according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an endoscope bending device according to an embodiment of the present invention;

fig. 6 is a schematic sectional view of an endoscope bending device according to an embodiment of the present invention;

fig. 7 is an exploded view of a control mechanism according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a second adaptor according to an embodiment of the present invention.

Description of reference numerals:

100. an endoscope bending mechanism, 110, a first mounting shell, 111, a first shell, 112, a second shell, 113, a first adapter port, 114, an outlet port, 115, a first positioning portion, 116, a support shaft, 117, a support base, 118, a contact piece, 119, a first bearing base, 1191, a first shaft hole, 120, a bending structure, 121, a rotating wheel, 1211, a bending groove, 1212, a mounting groove, 1213, a connecting shaft, 122, a first adjusting rope, 123, a second adjusting rope, 124, a first rope sleeve, 125, a second rope sleeve, 126, a pressing cover, 127, a fixing piece, 130, a first adapter piece, 131, a first positioning portion, 132, a first bearing, 140, a transmission structure, 141, a first transmission tooth, 142, a second transmission tooth, 150, an end cover, 160, a connecting head, 200, a control mechanism, 210, a second mounting shell, 211, a third shell, 212, a fourth shell, 213, a second adapter port, 214, a second positioning portion, 215. mounting hole, 216, second bearing seat, 2161, second shaft hole, 217, third bearing seat, 2171, third shaft hole, 220, handle, 221, fourth bearing, 222, bearing cover, 223, third driving tooth, 230, second adaptor, 231, connecting hole, 232, second spacing portion, 240, transmission piece, 241, fourth driving tooth, 250, rotating shaft, 251, first coupling, 252, second bearing, 253, third bearing, 254, second coupling.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.

In one embodiment, referring to fig. 1, 2 and 7, an endoscope bending mechanism 100 includes: a first mounting shell 110, a curved structure 120 and a first adapter 130. The first mounting shell 110 is provided with a first interface 113 and an outlet 114, and the first mounting shell 110 is detachably connected to the second mounting shell 210 of the control mechanism 200. The bending structure 120 includes a wheel 121, and a first adjusting rope 122 and a second adjusting rope 123 respectively connected to the wheel 121. The wheel 121 is rotatably mounted in the first mounting case 110. The first adjustment cord 122 and the second adjustment cord 123 are both connected to the insertion portion through the outlet 114. The first adaptor 130 is rotatably mounted in the first mounting housing 110, one end of the first adaptor 130 is in transmission fit with the rotating wheel 121, and the other end of the first adaptor 130 is used for being in transmission fit with the second adaptor 230 on the control mechanism 200 through the first adaptor 113.

According to the endoscope bending mechanism 100, the rotating wheel 121 is driven to rotate in the first mounting shell 110 by rotating the first rotating part 130, so that the rotating wheel 121 winds the first adjusting rope 122 or the second adjusting rope 123, a rope length difference is formed between the first adjusting rope 122 and the second adjusting rope 123, and the insertion part is bent. Because the bending structure 120 and the first adapting piece 130 are both located in the first mounting shell 110, and the first mounting shell 110 and the second mounting shell 210 are detachably connected, therefore, the bending part and the control part in the endoscope bending device are completely separated, and two independent structures are respectively formed, so that when the endoscope bending device is used up, only the first mounting shell 110 and the second mounting shell 210 are required to be separated, the bending part can be independently replaced, the endoscope bending device realizes partial structure replacement, the medical resource is greatly saved, the use cost of the endoscope is reduced, and the detection cost of a patient is reduced. Meanwhile, the first adaptor 130 is in transmission fit with the second adaptor 230 through the first adaptor 113, so that when the first mounting shell 110 is connected to the second mounting shell 210, the first adaptor 130 is in transmission fit with the second adaptor 230, so that the bending part and the control part of the endoscope bending device are organically combined to complete functional fit, and the assembly operation of the endoscope bending device is more convenient.

The insertion portion of the present embodiment is a portion that needs to be inserted into the human body during surgery, and the structure is integrated with devices such as an objective lens, a beam cover glass, and a nozzle. Meanwhile, the specific bending principle of the insertion portion is the prior art, and is not described in detail herein.

It should be further noted that, the other end of the first adaptor 130 of the present embodiment has two understanding modes through the first adaptor 113: the other end of the first adapter 130 extends out of the first adapter 113; the other end of the first adapter 130 does not extend out of the first adapter 113, i.e. the other end of the first adapter 130 is in the first adapter 113. When the other end of the first adaptor 130 does not extend out of the first adaptor 113, the second adaptor 230 extends into the first adaptor 113 and is in transmission fit with the first adaptor 130.

Optionally, the transmission matching manner of the first connecting member 130 and the rotating wheel 121 may be: the first connecting member 130 is in direct transmission fit with the rotating wheel 121, for example, the first connecting member 130 is coaxially connected with the rotating wheel 121; alternatively, the first connecting member 130 is indirectly engaged with the rotating wheel 121, for example, the first connecting member 130 and the rotating wheel 121 are driven by a gear. It should be noted that, when the first connecting member 130 is coaxially connected to the rotating wheel 121, the position of the first connecting member 130 has two states: a first rotating member 130 extends from one side of the first mounting shell 110, i.e. from the first housing 111 in fig. 2, and the first mounting shell 110 and the second mounting shell 210 are perpendicular or approximately perpendicular when assembled; second, the first connecting part 130 still extends from the end of the first mounting shell 110, and at this time, the mounting position of the rotating wheel 121 needs to be turned over by 90 ° from the mounting position in fig. 2, and in order to enable the first adjusting rope 122 and the second adjusting rope 123 to extend from the outlet 114, a guide wheel needs to be arranged in the first mounting shell 110, and the directions of the first adjusting rope 122 and the second adjusting rope 123 are changed through the guide wheel.

Similarly, the first adaptor 130 is in driving fit with the second adaptor 230 in two ways: firstly, direct transmission matching is adopted, namely a coaxial connection mode is adopted; and secondly, indirect transmission and matching are realized, and gear transmission is adopted between the two parts.

Optionally, the first mounting shell 110 and the second mounting shell 210 are detachably connected in an embodiment in which: a buckle structure is arranged between the first mounting shell 110 and the second mounting shell 210 to realize buckle connection; or, a ring sleeve is sleeved on the second mounting shell 210, an internal thread is arranged on the ring sleeve, and an external thread is arranged on the first mounting shell 110.

Further, referring to fig. 2, the endoscope bending mechanism 100 further includes a transmission mechanism 140. The transmission structure 140 is located in the first mounting case 110. One end of the first connecting member 130 is in transmission fit with the rotating wheel 121 through a transmission structure 140. Therefore, the transmission between the first connecting member 130 and the rotating wheel 121 in the embodiment is indirect transmission, and the first connecting member 130 can stably drive the rotating wheel 121 to rotate in the first mounting shell 110 through the transmission structure 140. Wherein, the transmission structure 140 may be a gear transmission structure 140 or a crank-slider mechanism.

Further, referring to fig. 2, the transmission structure 140 includes a first transmission tooth 141 and a second transmission tooth 142 engaged with each other. The first transmission tooth 141 is connected to the first transfer member 130. The second gear 142 is connected to the wheel 121. Thus, when the first rotating member 130 rotates and drives the first transmission gear 141 to rotate, the first transmission gear 141 also drives the second transmission gear 142 to rotate, and the second transmission gear 142 is connected to the rotating wheel 121, so that the rotating second transmission gear 142 also drives the rotating wheel 121 to rotate, thereby realizing the operation of the endoscope bending mechanism 100.

Optionally, the first transmission tooth 141 is connected to the first adapter 130 by a bolt connection, a pin connection, a key connection, or other connection means; the second gear 142 is connected to the wheel 121 by a bolt, a pin, a key, or other connection.

Alternatively, the first driving gear 141 and the second driving gear 142 may be both bevel gears or spur gears. When the first transmission gear 141 and the second transmission gear 142 are both straight gears, the position of the first transmission member 130 also has two states: a first rotating member 130 extends from one side of the first mounting shell 110, i.e. from the first housing 111 in fig. 2, and the first mounting shell 110 and the second mounting shell 210 are perpendicular or approximately perpendicular when assembled; second, the first adapter 130 still extends out from the end of the first mounting shell 110, and at this time, in order to enable the first adjusting rope 122 and the second adjusting rope 123 to extend out from the outlet 114, a guide wheel needs to be arranged in the first mounting shell 110, and the direction of the first adjusting rope 122 and the direction of the second adjusting rope 123 are changed through the guide wheel.

Specifically, referring to fig. 2, the first transmission gear 141 and the second transmission gear 142 are both bevel gears, so that the rotation directions of the first connecting member 130 and the rotating wheel 121 are changed through the first transmission gear 141 and the second transmission gear 142, and the first connecting member 130 and the rotating wheel 121 are more conveniently in transmission fit, so that the endoscope bending mechanism 100 is more compactly combined, and the structural stability of the endoscope bending device is improved.

In one embodiment, referring to fig. 2 and 6, a supporting shaft 116 is disposed in the first mounting housing 110. The rotating wheel 121 and the first transmission gear 141 are sleeved on the supporting shaft 116. In this way, the wheel 121 and the first transmission tooth 141 are stably rotated by the support shaft 116. Specifically, in this embodiment, the rotating wheel 121 is provided with a connecting shaft 1213, and the first transmission gear 141 is sleeved on the connecting shaft 1213 and rotates synchronously with the connecting shaft 1213. The synchronous rotation of the first transmission gear 141 and the connecting shaft 1213 can be realized by: the connection is realized through a key connection mode; or the cross section of one end of the connecting shaft 1213 is non-circular, and a non-circular hole is also formed on one end of the first transmission tooth 141. For example, the cross-sectional shape of one end of the connecting shaft 1213 is triangular, quadrangular, polygonal, elliptical, or the like; one end of the first transmission gear 141 is provided with a triangular hole, a quadrangular hole, a polygonal hole, an elliptical hole, etc.

In an embodiment, referring to fig. 1 and fig. 8, a first position-limiting portion 131 is disposed on an end of the first adapter 130 away from the rotating wheel 121, and when an end of the first adapter 130 is configured to be sleeved outside or inside the second adapter 230, the first position-limiting portion 131 is configured to be in position-limiting engagement with a second position-limiting portion 232 on the second adapter 230. Therefore, in the assembly process of the endoscope bending device, when the first mounting shell 110 is connected to the second mounting shell 210, the first adapter 130 is sleeved on the second adapter 230, and the first limiting portion 131 is in limiting fit with the second limiting portion 232, so that the first adapter 130 and the second adapter 230 realize stable transmission. Meanwhile, in the embodiment, a sleeving manner is adopted, so that the first adaptor 130 is matched with the second adaptor 230, the assembly stability of the first adaptor 130 and the second adaptor 230 is greatly improved, and stable transmission between the endoscope bending mechanism 100 and the control mechanism 200 is realized.

It should be noted that, an end of the first adapter 130 is sleeved outside or inside the second adapter 230, which is understood as follows: a connecting hole 231 is formed at the end of the first adaptor 130, and the second adaptor 230 is inserted into the connecting hole 231; alternatively, the end of the second adaptor 230 is opened with a connection hole 231, and the first adaptor 130 is inserted into the connection hole 231. Specifically, in this embodiment, a connection hole 231 is formed at an end of the second adaptor 230, the first adaptor 130 is inserted into the connection hole 231, the first limiting portion 131 is disposed on the first adaptor 130, and the second limiting portion 232 is disposed on a hole wall of the connection hole 231.

Optionally, the first position-limiting portion 131 is a protrusion, and the second position-limiting portion 232 is a slot; alternatively, the first position-limiting portion 131 is a slot, and the second position-limiting portion 232 is a protrusion.

In one embodiment, referring to FIG. 2, the endoscope bending mechanism 100 further includes a first bearing 132. The first bearing 132 is installed in the first installation case 110, and the first adaptor 130 is installed on the first bearing 132. Thus, the first bearing 132 allows the first rotating member 130 to rotate more stably and smoothly.

Further, referring to fig. 1 and fig. 3, a first bearing seat 119 is disposed in the first mounting housing 110, the first bearing 132 is disposed in the first bearing seat 119, the first bearing seat 119 is provided with a first shaft hole 1191, the first shaft hole 1191 is communicated with the first adaptor 113, and the first adaptor 130 penetrates through the first shaft hole 1191 and extends into the first adaptor 113, so that the first adaptor 130 rotates more stably.

In one embodiment, referring to fig. 2 and 4, the bending structure 120 further includes a fixing member 127 and a pressing cover 126. The turning wheel 121 is provided with a bending groove 1211 and a mounting groove 1212 on opposite sides thereof, the fixing member 127 is disposed in the mounting groove 1212, the pressing cover 126 is connected to the turning wheel 121 and covers the mounting groove 1212, and the first adjusting rope 122 and the second adjusting rope 123 are respectively wound around the mounting groove 1212 along the bending groove 1211 from opposite sides of the turning wheel 121 and are both connected to the fixing member 127.

Therefore, the first adjusting rope 122 and the second adjusting rope 123 are respectively wound at the mounting groove 1212 along the bending groove 1211 from two opposite sides of the rotating wheel 121; and then the first adjusting rope 122 and the second adjusting rope 123 are fixed on the fixing member 127, so that the bending structure 120 is designed reasonably, the installation mode of the adjusting ropes on the rotating wheel 121 is simplified, the first adjusting rope 122 and the second adjusting rope 123 are quickly installed on the rotating wheel 121, the assembly efficiency of the endoscope is greatly improved, and the endoscope is convenient for medical staff to use. Meanwhile, the fixing piece 127 is located in the mounting groove 1212, and the pressing cover 126 covers the mounting groove 1212, so that the fixing piece 127 is pressed in the mounting groove 1212 through the pressing cover 126, the mounting stability of the fixing piece 127 on the mounting groove 1212 is improved, and the fixing piece 127 is prevented from being separated from the mounting groove 1212 due to fatigue failure. Meanwhile, the pressing cover 126 is arranged on the mounting groove 1212, so that the first adjusting rope 122 and the second adjusting rope 123 can be attached to the rotating wheel 121 tightly, and the endoscope bending mechanism 100 can operate more stably.

It should be noted that, in this embodiment, specific materials of the first adjusting rope 122 and the second adjusting rope 123 are not limited, and only the first adjusting rope 122 and the second adjusting rope 123 need to be capable of stably bending the insertion portion, for example, the first adjusting rope 122 and the second adjusting rope 123 may be steel wire ropes, nylon ropes, fiber ropes, or other material ropes. Meanwhile, one end of the first adjusting rope 122 and one end of the second adjusting rope 123 may be connected together or disconnected. One end of the first adjusting rope 122 is connected with one end of the second adjusting rope 123 through a knotting mode, an integral forming mode, an adhering mode or other modes. When the first adjusting rope 122 and the second adjusting rope 123 are connected together in an integral forming mode, the first adjusting rope 122 and the second adjusting rope 123 are the same wire, so that the endoscope bending device is convenient to assemble quickly; at the same time, it is also advantageous to reduce the production cost of the endoscope bending mechanism 100.

Optionally, the first adjusting rope 122 and the second adjusting rope 123 are connected in the mounting groove 1212 through the fixing element 127, and the implementation manner may be: the fixing piece 127 is a bolt or a screw, and the first adjusting rope 122 and the second adjusting rope 123 are fixed in the mounting groove 1212 through the bolt or the screw; or, the fixing element 127 is an adhesive, and the first adjusting rope 122 and the second adjusting rope 123 are adhered in the mounting groove 1212 through the adhesive; or, the fixing element 127 is a buckle structure, and the first adjusting rope 122 and the second adjusting rope 123 are buckled in the installation groove 1212 through the buckle structure, wherein when the fixing element 127 is the buckle structure, the first adjusting rope 122 and the second adjusting rope 123 can be connected to the buckle structure through a knotting manner or a bolt and screw fixing manner.

In one embodiment, referring to fig. 2, the first mounting housing 110 includes a first housing 111 and a second housing 112. The first housing 111 is covered on the second housing 112, and the outlet 114 and the first interface 113 are both disposed on the first housing 111 and/or the second housing 112. Therefore, the first mounting shell 110 of the present embodiment is formed by splicing the upper and lower shells, so that the maintenance and replacement of the parts in the first mounting shell 110 by the operator are greatly facilitated. It should be noted that, the outlet 114 and the first interface 113 are both disposed on the first shell 111 and the second shell 112, which should be understood that the outlet 114 and the first interface 113 are disposed at the interface of the first shell 111 and the second shell 112.

Further, referring to fig. 2 and fig. 3, the bending structure 120 further includes a first rope loop 124 disposed on the first adjusting rope 122, and a second rope loop 125 disposed on the second adjusting rope 123. A support seat 117 is arranged on the second shell 112, a contact piece 118 is arranged on the first shell 111, and the contact piece 118 is used for pressing the first rope sling 124 and the second rope sling 125 on the support seat 117, so that the first rope sling 124 and the second rope sling 125 are effectively fixed, and the first adjusting rope 122 and the second adjusting rope 123 are prevented from shaking in the adjusting process; meanwhile, when the first adjusting rope 122 or the second adjusting rope 123 is wound, since the first rope loop 124 and the second rope loop 125 are fixed and cannot be wound along with the first adjusting rope 122 or the second adjusting rope 123, the first rope loop 124 or the second rope loop 125 is bent and deformed, so that the endoscope bending mechanism 100 can easily perform bending operation.

In one embodiment, referring to fig. 2, the first mounting shell 110 is provided with an end cap 150, and the end cap 150 is located at the outlet 114. Meanwhile, a connector 160 is further disposed in the first mounting case 110, the connector 160 is used for connecting the spring tube, and the first adjusting rope 122 and the second adjusting rope 123 both penetrate the connector 160 and the spring tube.

In one embodiment, referring to fig. 1, 2, 5, 6 and 7, an endoscopic bending apparatus includes a control mechanism 200 and an endoscopic bending mechanism 100 of any of the above embodiments. The control mechanism 200 includes a second mounting housing 210, and a handle 220 and a second adaptor 230 both rotatably mounted on the second mounting housing 210. The second mounting shell 210 is provided with a second adaptor 213, and one end of the second adaptor 230 is in transmission fit with the handle 220. The other end of the second adaptor 230 is in driving fit with the first adaptor 130 through the second adaptor port 213.

The endoscope bending device adopts the endoscope bending mechanism 100, and the rotating wheel 121 is driven to rotate in the first mounting shell 110 by rotating the first connecting piece 130, so that the rotating wheel 121 winds the first adjusting rope 122 or the second adjusting rope 123, a rope length difference is formed between the first adjusting rope 122 and the second adjusting rope 123, and the insertion part is bent. Because the bending structure 120 and the first adapting piece 130 are both located in the first mounting shell 110, and the first mounting shell 110 and the second mounting shell 210 are detachably connected, therefore, the bending part and the control part in the endoscope bending device are completely separated, and two independent structures are respectively formed, so that when the endoscope bending device is used up, only the first mounting shell 110 and the second mounting shell 210 are required to be separated, the bending part can be independently replaced, the endoscope bending device realizes partial structure replacement, the medical resource is greatly saved, the use cost of the endoscope is reduced, and the detection cost of a patient is reduced. Meanwhile, the first adaptor 130 is in transmission fit with the second adaptor 230 through the first adaptor 113, so that when the first mounting shell 110 is connected to the second mounting shell 210, the first adaptor 130 is in transmission fit with the second adaptor 230, so that the bending part and the control part of the endoscope bending device are organically combined to complete functional fit, and the assembly operation of the endoscope bending device is more convenient.

Further, referring to fig. 7, the bending device of the endoscope further includes a transmission member 240, and a third transmission tooth 223 and a fourth transmission tooth 241 engaged with each other. The third gear 223 is coupled to the handle 220. The fourth gear tooth 241 is connected to the transmission member 240. The end of the transmission member 240 remote from the handle 220 is in transmission engagement with the second adaptor member 230. Therefore, the rotating handle 220 drives the transmission member 240 to rotate through the third transmission gear 223 and the fourth transmission gear 241, and the transmission member 240 is in transmission fit with the second adaptor 230, so that the rotated transmission member 240 can drive the second adaptor 230 to rotate, and thus the control mechanism 200 can stably operate, and the endoscope bending mechanism 100 can be ensured to have a stable power source.

Specifically, referring to fig. 7, the third transmission gear 223 and the fourth transmission gear 241 are both bevel gears, so that the transmission direction is changed, the installation positions of the handle 220 and the transmission member 240 on the second installation shell 210 are more compactly distributed, and the overall structural size of the endoscope bending device is favorably reduced.

Optionally, the transmission member 240 is in transmission fit with the second adaptor 230 by: the transmission member 240 is directly engaged with the second adaptor 230 in a transmission manner, for example, the transmission member 240 is coaxially connected with the second adaptor 230; the transmission member 240 is indirectly in transmission engagement with the second adaptor member 230, for example, the transmission member 240 and the second adaptor member 230 are transmitted through a gear structure or other connection structure.

Further, referring to fig. 7, the bending apparatus further includes a rotating shaft 250 rotatably installed in the second installation case 210. One end of the rotating shaft 250 is connected to the transmission member 240, and the other end of the rotating shaft 250 is connected to the second adaptor 230. Therefore, in the present embodiment, the transmission member 240 and the second adaptor 230 are in indirect transmission fit, and the transmission between the transmission member 240 and the second adaptor 230 is realized through the rotating shaft 250. Meanwhile, the rotating shaft 250 is arranged between the transmission member 240 and the second adapter 230, so that the torque force on the transmission member 240 can be shared, and the phenomenon that the transmission member 240 is directly connected with the second adapter 230 to cause overlarge torque force is avoided, so that the structure of the transmission member 240 is unstable, and the structural stability of the control mechanism 200 is greatly improved.

In particular, the control mechanism 200 further comprises a first coupling 251 and a second coupling 254, the transmission member 240 is connected to the rotating shaft 250 via the first coupling 251, and the second adaptor 230 is connected to the rotating shaft 250 via the second coupling 254.

In one embodiment, referring to fig. 7, the control mechanism 200 includes a second bearing 252 and a third bearing 253, the second bearing 252 and the third bearing 253 are disposed in the second mounting case 210 at an interval, and the rotating shaft 250 is mounted on the second bearing 252 and the third bearing 253, so as to ensure stable transmission among the transmission member 240, the rotating shaft 250 and the second adaptor 230.

Further, a second bearing seat 216 and a third bearing seat 217 are arranged in the second mounting case 210 at intervals, the second bearing 252 and the third bearing 253 are respectively and correspondingly arranged in the second bearing seat 216 and the third bearing seat 217, a second shaft hole 2161 is arranged on the second bearing seat 216, a third shaft hole 2171 opposite to the second shaft hole 2161 is arranged on the third bearing seat 217, and the rotating shaft 250 respectively penetrates through the second shaft hole 2161 and the third shaft hole 2171 and is arranged on the second bearing 252 and the third bearing 253. In this way, the rotational stability of the rotational shaft 250 in the second mounting case 210 is greatly improved.

In one embodiment, referring to fig. 1 and 7, the first mounting housing 110 is provided with a first positioning portion 115. The second mounting case 210 is provided with a second positioning portion 214 which is in positioning engagement with the first positioning portion 115. In this way, the first positioning portion 115 and the second positioning portion 214 are in positioning fit, so that the first mounting shell 110 and the second mounting shell 210 are stably assembled. Meanwhile, the first mounting shell 110 and the second mounting shell 210 can be mounted and aligned by operators greatly, and the assembly efficiency of the endoscope bending device is improved.

Optionally, the first positioning portion 115 is a positioning boss, and the second positioning portion 214 is a positioning groove; alternatively, the first positioning portion 115 is a positioning groove, and the second positioning portion 214 is a positioning boss.

Specifically, the first positioning portion 115 is a positioning boss, the second positioning portion 214 is a positioning groove, the first adapter 113 is disposed on the positioning boss, and the second adapter 213 is disposed at a bottom of the positioning groove.

In one embodiment, referring to fig. 5 and 7, the second mounting case 210 includes a third case 211 and a fourth case 212. The third housing 211 is covered on the fourth housing 212. The second adapter 213 is provided on the third housing 211 and/or the fourth housing 212. Therefore, the second mounting shell 210 of the present embodiment is formed by splicing two parts, which is greatly convenient for the operator to maintain and replace the internal parts of the control mechanism 200.

In one embodiment, referring to fig. 6, the control mechanism 200 further includes a fourth bearing 221, the second mounting housing 210 is provided with a mounting hole 215, the fourth bearing 221 is installed in the second mounting housing 210 and located at the mounting hole 215, and the handle 220 passes through the mounting hole 215 and is installed on the fourth bearing 221, so that the rotation of the handle 220 is smoother. Meanwhile, the fourth bearing 221 is covered with a bearing cover 222 to prevent dust from entering the fourth bearing 221 and causing the fourth bearing 221 not to rotate.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An endoscope bending mechanism comprising:

the first mounting shell is provided with a first adapter and a wire outlet and is used for being detachably connected with a second mounting shell on the control mechanism;

the bending structure comprises a rotating wheel, and a first adjusting rope and a second adjusting rope which are respectively connected to the rotating wheel, the rotating wheel is rotatably arranged in the first mounting shell, and the first adjusting rope and the second adjusting rope are both used for being connected with the insertion part through the wire outlet; and

first adaptor, first adaptor rotationally install in the first installation shell, first adaptor one end with runner transmission cooperation, the first adaptor other end passes through first interface be used for with the last second adaptor transmission cooperation of control mechanism.

2. The endoscope bending mechanism of claim 1 further comprising a drive structure located within the first mounting housing, wherein one end of the first adapter is in driving engagement with the wheel via the drive structure.

3. The endoscope bending mechanism according to claim 2, wherein the transmission structure comprises a first transmission tooth and a second transmission tooth that are engaged with each other, the first transmission tooth being connected to the first coupling member, the second transmission tooth being connected to the wheel.

4. The endoscope bending mechanism according to claim 3, wherein a support shaft is disposed in the first mounting housing, and the rotating wheel and the first transmission gear are both sleeved on the support shaft; or,

the first transmission gear and the second transmission gear are both bevel gears.

5. The endoscope bending mechanism according to claim 1, wherein a first limiting portion is disposed at an end of the first adapter far from the rotating wheel, and when one end of the first adapter is used for being sleeved outside or inside the second adapter, the first limiting portion is used for being in limiting fit with a second limiting portion on the second adapter.

6. The endoscope bending mechanism according to any of claims 1-5, further comprising a first bearing mounted within the first mounting housing, and wherein the first adapter is mounted on the first bearing; or,

the bending structure further comprises a fixing piece and a gland, bending grooves and mounting grooves are formed in two opposite side surfaces of the rotating wheel, the fixing piece is located in the mounting groove, the gland is connected to the rotating wheel and covers the mounting groove, and the first adjusting rope and the second adjusting rope are respectively wound at the mounting groove from two opposite sides of the rotating wheel along the bending grooves and are both connected to the fixing piece; or,

the first mounting shell comprises a first shell and a second shell, the first shell is covered on the second shell, and the wire outlet and the first adapter are both arranged on the first shell and/or the second shell.

7. An endoscope bending device, characterized by comprising a control mechanism and the endoscope bending mechanism of any one of claims 1-6, wherein the control mechanism comprises a second mounting shell, a handle and a second adaptor which are both rotatably mounted on the second mounting shell, a second adaptor is arranged on the second mounting shell, one end of the second adaptor is in transmission fit with the handle, and the other end of the second adaptor is in transmission fit with the first adaptor through the second adaptor.

8. An endoscope bending device according to claim 7 and further comprising a transmission member, and a third transmission tooth and a fourth transmission tooth engaged with each other, wherein the third transmission tooth is connected to the handle, the fourth transmission tooth is connected to the transmission member, and an end of the transmission member remote from the handle is in transmission engagement with the second adaptor.

9. An endoscope bending device according to claim 8, further comprising a rotating shaft rotatably mounted in the second mounting housing, wherein one end of the rotating shaft is connected to the transmission member, and the other end of the rotating shaft is connected to the second adaptor.

10. The endoscope bending device according to any one of claims 7 to 9, wherein a first positioning portion is provided on the first mounting shell, and a second positioning portion which is in positioning fit with the first positioning portion is provided on the second mounting shell; or,

the second mounting shell comprises a third shell and a fourth shell, the third shell is covered on the fourth shell, and the second adapter is arranged on the third shell and/or the fourth shell.