阅读说明：本技术 一种内镜下可变换形态的夹取装置 (Clamping device with transformable form under endoscope ) 是由 冯程 寸新华 杜映荣 高建鹏 黄红丽 白劲松 陈友惠 李黎 宁小黎 翟斯佳 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种内镜下可变换形态的夹取装置,其特征在于,包括：卡爪、第一套接头、连接杆、内主杆、外主杆、拿持把手、操作扳手、第二套接头、复位弹簧、拉杆；所述卡爪活动套接在第一套接头上,所述第一套接头上端铰连接在内主杆端头,下端铰连接在拉杆端头,所述第二套接头于两侧铰连接在内主杆尾端,所述连接杆一端与卡爪尾端铰连接,另一端活动套接在第二套接头内,牵动卡爪运动,所述拿持把手固定连接在内主杆尾端,操作扳手活动连接在拿持把手内侧,可按压向拿持手柄移动,所述拉杆活动置于内主杆内腔,尾端固定连接在操作扳手的上端,所述外主杆固定连接在内主杆外侧,未覆盖整个内主杆；提升了手术效率,减轻了医护人员的负担。(The invention discloses a clamping device capable of changing the shape under an endoscope, which is characterized by comprising: the device comprises clamping jaws, a first sleeve joint, a connecting rod, an inner main rod, an outer main rod, a holding handle, an operating wrench, a second sleeve joint, a return spring and a pull rod; the clamping jaw is movably sleeved on a first sleeve joint, the upper end of the first sleeve joint is hinged to the end of the inner main rod, the lower end of the first sleeve joint is hinged to the end of the pull rod, the second sleeve joint is hinged to the tail end of the inner main rod on two sides, one end of the connecting rod is hinged to the tail end of the clamping jaw, the other end of the connecting rod is movably sleeved in the second sleeve joint, the clamping jaw is pulled to move, the holding handle is fixedly connected to the tail end of the inner main rod, the operating wrench is movably connected to the inner side of the holding handle and can be pressed to move towards the holding handle, the pull rod is movably arranged in an inner main rod cavity, the tail end of the pull rod is fixedly connected to the upper end of the operating wrench, and the outer main rod is fixedly connected to the outer side of the inner main rod and does not cover the whole inner main rod; the operation efficiency is improved, and the burden of medical personnel is reduced.)

1. The utility model provides a device is got to convertible form's clamp under scope which characterized in that includes: the device comprises clamping jaws, a first sleeve joint, a connecting rod, an inner main rod, an outer main rod, a holding handle, an operating wrench, a second sleeve joint, a return spring and a pull rod;

the jack catch activity cup joints on first cover connects, first cover connects the upper end hinged joint at interior main jib end, and lower extreme hinged joint is at the pull rod end, the second cover connects in the main jib tail end of both sides hinged joint in, connecting rod one end is connected with jack catch tail end hinged joint, and other end activity cup joints in the second cover connects, drags the jack catch motion, including holding handle fixed connection main jib tail end, operating wrench swing joint is inboard holding the handle, can press to holding the handle removal, the main jib inner chamber is arranged in to the pull rod activity, and tail end fixed connection is in operating wrench's upper end, including outer main jib fixed connection in the main jib outside, do not cover whole interior main jib.

2. The clamping device capable of changing the shape under an endoscope, as claimed in claim 1, wherein a circular through hole is formed inside the inner main rod and penetrates through the tail end of the inner main rod, a cylindrical groove is formed at the head end of the circular through hole inside the inner main rod and does not penetrate through the end head of the inner main rod, the cylindrical groove is communicated with the circular through hole, a first rectangular groove is formed at the periphery of the inner main rod and extends to the tail end of the inner main rod, the first rectangular groove penetrates inwards into the cylindrical groove at the cylindrical groove, a connecting column is arranged inside the head end of the first rectangular groove, and connecting lugs are arranged on two sides of the tail end; the pull rod is movably arranged in the circular through hole and the cylindrical groove, the upper end of the first sleeve joint is hinged to the connecting cylinder, and the second sleeve joint is hinged between the two connecting lug pieces.

3. The clamping device capable of changing the shape under an endoscope is characterized in that the pull rod is divided into a connecting head and a connecting rod which are fixedly connected, the connecting rod is arranged in the circular through hole, the connecting head is arranged in the cylindrical groove, a limiting circular truncated cone is arranged at the near end of the connecting rod, and a reset spring is fixedly connected between the limiting circular truncated cone and the side wall of the cylindrical groove; the lower end of the first sleeve joint is hinged to the connecting head.

4. The device of claim 3, wherein the first sleeve connector has a rectangular sleeve with an inner cavity having an arc-shaped groove for engaging with the clamping jaw.

5. The device of claim 4, wherein the claws are provided with circular protrusions at the head and tail ends thereof.

6. The clamping device with transformable form under endoscope of claim 1, characterized in that the outer main rod is provided with a second rectangular groove at the position of the first rectangular groove matched with the inner main rod, and penetrates to the head end of the outer main rod, and the tail end of the second rectangular groove is provided with a third rectangular groove, and penetrates to the inner cavity of the second rectangular groove; the connecting rod is movably arranged in the first rectangular groove and the second rectangular groove.

7. The device as claimed in claim 6, wherein the connecting rod has an operating head at the end, and the operating head passes through the third rectangular slot and is disposed on the outer surface of the outer main rod.

8. The use of the device according to any of claims 1 to 7, wherein the device comprises a grip member;

(1) the related operation of the endoscope is completed on the basis of the prior art, and a channel is constructed.

(2) The device is sterilized and cleaned.

(3) The operating wrench is pressed to adjust the device to a jaw contraction state, and the device is sent into the body of a patient through a biopsy channel of the endoscope.

(4) The foreign body grabbing by a plurality of clamping jaws is needed for judging through a graph image acquired by an endoscope.

(5) The jaws are drawn by the operating head as required.

(6) When the clamping jaw is retracted, the operating head slides towards the near end of an operator until the arc bulge at the end head of the clamping jaw is clamped into the arc groove of the first set of joint.

(7) When the claw is extended out, the operating head slides towards the far end of an operator until the arc bulge at the tail end of the claw is clamped into the arc groove of the first set of joint.

(8) After the clamping jaws are adjusted, the position of the device is adjusted under the endoscope to align with the foreign matters.

(9) The operation wrench is loosened, and the clamping jaws are opened under the elastic force action of the return spring.

(10) The clamping jaw is adjusted to the periphery of the foreign body, the operating wrench is pressed again, and the foreign body is clamped.

(11) The device is taken out from the endoscope biopsy channel to finish foreign matter clamping.

9. The device for clamping foreign bodies under an endoscope, which is convertible into a shape of a handle according to any one of claims 1 to 7, discloses an application of the device for clamping foreign bodies under an endoscope in the field of foreign body clamping.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a clamping device capable of changing the shape under an endoscope.

Background

The endoscope is a detection instrument integrating traditional optics, human engineering, precision machinery, modern electronics, mathematics and software into a whole. It has image sensor, optical lens, light source lighting, mechanical device, etc. and may enter the stomach orally or through other natural pore canal. Since a lesion which cannot be displayed by X-ray can be seen by an endoscope, it is very useful for a doctor. For example, with the aid of an endoscopist, an ulcer or tumor in the stomach can be observed, and an optimal treatment plan can be developed accordingly.

At present, endoscopes are also used for clamping foreign matters, focal tissues and the like in a human body, namely, a channel entering the human body is created through the endoscope, and a target object is clamped through a medical clamping device such as three claws, five claws, six claws and the like, so that the wound of a patient is small, and the operation effect is good.

However, the following disadvantages exist in clinical clamping of foreign bodies, focal tissues and the like:

aiming at various foreign bodies or lesion tissues in a human body, three claws are required to grab the endoscope biopsy channel sometimes, and five claws or six claws are required to effectively grab the endoscope biopsy channel sometimes, at present, the form of the clamping device of the endoscope biopsy channel needs to be continuously changed in clinic so as to achieve the most effective grabbing of a target object, so that the instrument operation burden in an operation is greatly increased, the operation in the whole operation process is very inconvenient, on one hand, the operation difficulty in the operation process is increased, and on the other hand, the work burden of medical workers is increased; the repeated extraction process not only wastes time, but also has the risk of occupational exposure.

Disclosure of Invention

In order to solve the technical problems, the invention designs a clamping device with convertible shapes under an endoscope, which takes a clamping jaw as a design prototype and is provided with a plurality of movable telescopically-adjusted jaws, the conversion from one jaw to six jaws can be realized through artificial adjustment, meanwhile, the conversion can be carried out when the device goes deep into an endoscope biopsy channel or goes deep into a patient body, and an operator carries out shape conversion operation on the part of the device exposed out of the human body or the endoscope, thus realizing the supply of different jaw form requirements in clinic, one device has a plurality of shape conversion operations, improving the condition of commonly replacing the jaw in clinic at present, avoiding complex operations, providing convenience for the whole foreign body clamping process, improving the efficiency of the operation, reducing the operation burden of medical care personnel, and simultaneously avoiding repeatedly extracting the clamping device, the risk of occupational exposure is reduced.

In order to achieve the technical effects, the invention is realized by the following technical scheme: the utility model provides a device is got to convertible form's clamp under scope which characterized in that includes: the device comprises clamping jaws, a first sleeve joint, a connecting rod, an inner main rod, an outer main rod, a holding handle, an operating wrench, a second sleeve joint, a return spring and a pull rod;

the clamping jaw is movably sleeved on a first sleeve joint, the upper end of the first sleeve joint is hinged to the end of the inner main rod, the lower end of the first sleeve joint is hinged to the end of the pull rod, the second sleeve joint is hinged to the tail end of the inner main rod on two sides, one end of the connecting rod is hinged to the tail end of the clamping jaw, the other end of the connecting rod is movably sleeved in the second sleeve joint, the clamping jaw is pulled to move, the holding handle is fixedly connected to the tail end of the inner main rod, the operating wrench is movably connected to the inner side of the holding handle and can be pressed to move towards the holding handle, the pull rod is movably arranged in an inner main rod cavity, the tail end of the pull rod is fixedly connected to the upper end of the operating wrench, and the outer main rod is fixedly connected to the outer side of the inner main rod and does not cover the whole inner main rod;

furthermore, a circular through hole is formed in the inner main rod and penetrates through the tail end of the inner main rod, a cylindrical groove is formed in the head end of the circular through hole in the inner main rod, the circular through hole is communicated with the end of the inner main rod, a first rectangular groove is formed in the periphery of the inner main rod and extends to the tail end of the inner main rod, the first rectangular groove penetrates into the cylindrical groove from the cylindrical groove inwards, a connecting cylinder is arranged in the head end of the first rectangular groove, and connecting lugs are arranged on two sides of the tail end; the pull rod is movably arranged in the circular through hole and the cylindrical groove, the upper end of the first sleeve joint is hinged to the connecting cylinder, and the second sleeve joint is hinged between the two connecting lug pieces;

furthermore, the pull rod is divided into a connecting head and a connecting rod which are fixedly connected, the connecting rod is arranged in the circular through hole, the connecting head is arranged in the cylindrical groove, a limiting round table is arranged at the near end of the connecting head of the connecting rod, and a reset spring is fixedly connected between the limiting round table and the side wall of the cylindrical groove; the lower end of the first sleeve joint is hinged to the connecting head;

further, an arc groove is formed in the inner cavity of the first sleeve joint rectangular sleeve and matched with the clamping jaw;

further, arc bulges are arranged at the head end and the tail end of the clamping jaw;

furthermore, a second rectangular groove is formed in the position, matched with the first rectangular groove of the inner main rod, of the outer main rod and penetrates through the head end of the outer main rod, and a third rectangular groove is formed in the tail end of the second rectangular groove and penetrates through the inner cavity of the second rectangular groove; the connecting rod is movably arranged in the first rectangular groove and the second rectangular groove;

furthermore, the tail end of the connecting rod is provided with an operating head, and the operating head penetrates through the third rectangular groove and is arranged on the outer surface of the outer main rod;

the invention also aims to provide a using method of the clamping device with a transformable form under an endoscope, which comprises the following steps:

1. the related operation of the endoscope is completed on the basis of the prior art, and a channel is constructed.

2. The device is sterilized and cleaned.

3. The operating wrench is pressed to adjust the device to a jaw contraction state, and the device is sent into the body of a patient through a biopsy channel of the endoscope.

4. The foreign body grabbing by a plurality of clamping jaws is needed for judging through a graph image acquired by an endoscope.

5. The jaws are drawn by the operating head as required.

6. When the clamping jaw is retracted, the operating head slides towards the near end of an operator until the arc bulge at the end head of the clamping jaw is clamped into the arc groove of the first set of joint.

7. When the claw is extended out, the operating head slides towards the far end of an operator until the arc bulge at the tail end of the claw is clamped into the arc groove of the first set of joint.

8. After the clamping jaws are adjusted, the position of the device is adjusted under the endoscope to align with the foreign matters.

9. The operation wrench is loosened, and the clamping jaws are opened under the elastic force action of the return spring.

10. The clamping jaw is adjusted to the periphery of the foreign body, the operating wrench is pressed again, and the foreign body is clamped.

11. The device is taken out from the endoscope biopsy channel to finish foreign matter clamping.

The invention has the beneficial effects that:

the device is with pressing from both sides the jack catch as the design prototype, the jack catch that is equipped with a plurality of mobile flexible regulations, can realize a claw through artificial regulation to the transform of six claws, simultaneously, this transform can be in the device gos deep into endoscope biopsy passageway or go deep into the internal transform of patient, operating personnel exposes the part outside human body or the endoscope in the device, carry out the form transform operation, so, can realize in clinical the supply to different jack catch form demands, a plurality of form transform operations of a device, the condition of the ordinary change jack catch of present clinical well-being has been improved, complicated operation has been avoided, it facilitates to press from both sides the process for whole foreign matter, the efficiency of operation has been promoted, medical personnel's operation burden has been lightened, simultaneously, no longer need to extract repeatedly to press from both sides and get the device, the risk of occupational exposure has been reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an endoscopic convertible grasping device;

FIG. 2 is a schematic view showing the internal structure of the gripping device with changeable configuration under an endoscope;

FIG. 3 is a schematic diagram of the internal structure of the gripping device with changeable configuration under an endoscope;

FIG. 4 is a schematic view showing a single configuration of the grasping device with changeable configuration under an endoscope;

FIG. 5 is a sectional view of the surface A-A of the gripping device with changeable shape under an endoscope;

FIG. 6 is a sectional view of the plane B-B of the gripping device with changeable shape under the endoscope;

FIG. 7 is an enlarged fragmentary view at 11 of FIG. 3;

FIG. 8 is an enlarged fragmentary view at 12 of FIG. 5;

FIG. 9 is an enlarged fragmentary view at 13 of FIG. 6;

FIG. 10 is an enlarged fragmentary view at 14 of FIG. 6;

FIG. 11 is a schematic view of five jaws of a grasping device with an endoscope changeable configuration;

FIG. 12 is a schematic view of three jaws of a grasping device with an endoscope changeable configuration;

in the drawings, the components represented by the respective reference numerals are listed below:

1-claw, 101-arc protrusion, 2-first set of joint, 201-arc groove, 3-connecting rod, 301-operating head, 4-inner main rod, 401-circular through hole, 402-first rectangular groove, 403-cylindrical groove, 404-connecting column, 405-connecting lug, 5-outer main rod, 501-second rectangular groove, 502-third rectangular groove, 6-holding handle, 7-operating wrench, 8-second set of joint, 9-reset spring, 10-pull rod, 1001-connector, 1002-connecting rod, 1003-limit platform.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1 to 12, a clamping device with convertible configuration under an endoscope, comprising: the device comprises a clamping jaw 1, a first sleeve joint 2, a connecting rod 3, an inner main rod 4, an outer main rod 5, a holding handle 6, an operating wrench 7, a second sleeve joint 8, a return spring 9 and a pull rod 10;

the clamping jaw 1 is movably sleeved on the first sleeve joint 2, the upper end of the first sleeve joint 2 is hinged to the end of the inner main rod 4, the lower end of the first sleeve joint 2 is hinged to the end of the pull rod 10, the second sleeve joint 8 is hinged to the tail end of the inner main rod 4 on two sides, one end of the connecting rod 3 is hinged to the tail end of the clamping jaw 1, the other end of the connecting rod is movably sleeved in the second sleeve joint 8, the clamping jaw 1 is driven to move, the holding handle 6 is fixedly connected to the tail end of the inner main rod 4, the operating wrench 7 is movably connected to the inner side of the holding handle 6 and can be pressed to move towards the holding handle 6, the pull rod 10 is movably arranged in the inner cavity of the inner main rod 4, the tail end of the operating wrench 7 is fixedly connected to the upper end of the operating wrench 7, the outer main rod 5 is fixedly connected to the outer side of the inner main rod 4, and the whole inner main rod 4 is not covered; the device realizes the conversion of the working forms of the plurality of clamping jaws 1 by adjusting the telescopic state of the clamping jaws 1 in the first sleeve joint 2, and the conversion can be directly realized in the body of a patient, thus abandoning the operation of frequently replacing the clamping jaws for clamping foreign matters in the traditional process, providing convenience for the whole process of clamping the foreign matters, improving the efficiency of the operation and lightening the operation burden of medical personnel;

a circular through hole 401 is formed in the inner main rod 4 and penetrates through the tail end of the inner main rod 4, a cylindrical groove 403 is formed in the head end of the circular through hole 401 in the inner main rod 4 and does not penetrate through the end of the inner main rod 4 and is communicated with the circular through hole 401, a first rectangular groove 402 is formed in the periphery of the inner main rod 4 and extends to the tail end of the inner main rod 4, the cylindrical groove 403 penetrates inwards to the inside of the cylindrical groove 403, a connecting column 404 is arranged in the head end of the first rectangular groove 402, and connecting lugs 405 are arranged on two sides of the tail end; the pull rod 10 is movably arranged in the circular through hole 401 and the cylindrical groove 403, the upper end of the first sleeve joint 2 is hinged to the connecting cylinder 404, and the second sleeve joint 8 is hinged between the two connecting lug plates 405;

the pull rod 10 is divided into two parts of a connecting head 1001 and a connecting rod 1002 which are fixedly connected, the connecting rod 1002 is arranged in the circular through hole 401, the connecting head 1001 is arranged in the cylindrical groove 403, a limiting round table 1003 is arranged at the near end of the connecting head 1001 of the connecting rod 1002, and a return spring 9 is fixedly connected between the limiting round table 1003 and the side wall of the cylindrical groove 403; the lower end of the first sleeve joint 2 is hinged on the connecting joint 1001; in actual operation, the operating wrench 7 drives the pull rod 10 to move backwards, and as the lower end of the first sleeve joint 2 is hinged to the end of the pull rod 101 and the upper end is hinged to the end of the inner main rod 4, when the pull rod 10 pulls, the first sleeve joint 2 makes circular motion at the hinged joint of the inner main rod 4 along the upper end thereof, and drives the clamping jaws sleeved on the first sleeve joint 2 to realize switching of opening and closing states; meanwhile, the return spring 9 provides a forward-moving restoring elastic force for the pull rod 10, so that the automatic restoration of the opening state of the clamping jaw is realized;

an arc groove 201 is formed in the inner cavity of the rectangular sleeve of the first sleeve joint 2 and matched with the clamping jaw 1;

the head end and the tail end of the jaw 1 are respectively provided with an arc bulge 101, the arc bulges 101 are clamped into the arc grooves 201 to limit the jaw 1 and the first sleeve joint 2, and the jaw 1 is fixed in a telescopic state;

a second rectangular groove 501 is formed in the position, matched with the first rectangular groove of the inner main rod 4, of the outer main rod 5 and penetrates to the head end of the outer main rod 5, and a third rectangular groove 502 is formed in the tail end of the second rectangular groove 501 and penetrates to an inner cavity of the second rectangular groove 501; the connecting rod 3 is movably arranged in the first rectangular groove 402 and the second rectangular groove 501;

the tail end of the connecting rod 3 is provided with an operating head 301, and the operating head 301 passes through the third rectangular groove 502 and is arranged on the outer surface of the outer main rod 5; the connecting rod 3 is pulled by the operating head 301 to move, the connecting rod 3 drives the clamping jaw 1 to move, two states of the clamping jaw 1 are adjusted, namely the clamping jaw 1 is pulled to the near end of an operator in the first set of joint 2 until the clamping jaw is limited, or the clamping jaw 1 is pushed by the operating head 301, namely the clamping jaw 1 is pushed to the far end of the operator until the clamping jaw is limited, finally, the telescopic sleeve joint of the clamping jaw 1 is realized, and the state change of the whole device is completed;

the specific using method of the device comprises the following steps:

1. the related operation of the endoscope is completed on the basis of the prior art, and a channel is constructed.

2. The device is sterilized and cleaned.

3. The operating wrench is pressed to adjust the device to a jaw contraction state, and the device is sent into the body of a patient through a biopsy channel of the endoscope.

4. The foreign body grabbing by a plurality of clamping jaws is needed for judging through a graph image acquired by an endoscope. The jaws are drawn by the operating head as required.

6. When the clamping jaw is retracted, the operating head slides towards the near end of an operator until the arc bulge at the end head of the clamping jaw is clamped into the arc groove of the first set of joint.

7. When the claw is extended out, the operating head slides towards the far end of an operator until the arc bulge at the tail end of the claw is clamped into the arc groove of the first set of joint.

8. After the clamping jaws are adjusted, the position of the device is adjusted under the endoscope to align with the foreign matters.

9. The operation wrench is loosened, and the clamping jaws are opened under the elastic force action of the return spring.

10. The clamping jaw is adjusted to the periphery of the foreign body, the operating wrench is pressed again, and the foreign body is clamped.

11. The device is taken out from the endoscope biopsy channel to finish foreign matter clamping.

In conclusion, the device takes the clamping jaw as a design prototype and is provided with a plurality of movable telescopically-adjustable jaws, the transformation from one jaw to six jaws can be realized through artificial adjustment, meanwhile, the transformation can be realized when the device goes deep into an endoscope biopsy channel or goes deep into a patient body, and an operator performs shape transformation operation on the part of the device exposed out of the human body or the endoscope, so that the supply of different jaw form requirements in clinic can be realized.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.