CN113545812A

CN113545812A - Cam-type fixed-point operating device for intestinal tract

Info

Publication number: CN113545812A
Application number: CN202110827050.7A
Authority: CN
Inventors: 张伟; 张文震; 许婧璇; 权江坤; 龚渠; 张俊杰
Original assignee: Hubei University of Automotive Technology
Current assignee: Hubei University of Automotive Technology
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-10-26
Anticipated expiration: 2041-07-21
Also published as: CN113545812B

Abstract

The invention discloses a cam-type fixed-point operating device for intestinal tracts, which comprises a shell, wherein an opening is formed in a top cover of the shell, and a closed cam is arranged in the shell; the magnetic control driving mechanism is arranged in the shell and realizes positioning sampling or pesticide application through an external control device; the rotary support is arranged in the shell and is in driving connection with the magnetic control driving mechanism, the rotary support is provided with a plurality of support tubes distributed in an annular mode, the top surface of each support tube is attached to the inner top surface of the top cover, the medicine applying mechanism or the biopsy mechanism is arranged in the support tubes in a sliding mode, the inner end of the medicine applying mechanism and the inner end of the biopsy mechanism are both in driving connection with the closed cam, the medicine applying mechanism or the biopsy mechanism firstly climbs and then falls back when crossing the cam section of the closed cam, and the medicine applying mechanism or the biopsy mechanism ejects out of an opening to apply medicine or sample when climbing. The invention can complete the function of multi-target point pesticide application or sampling or the combination of pesticide application and sampling, and has powerful function, simple structure and easy control.

Description

Cam-type fixed-point operating device for intestinal tract

Technical Field

The invention relates to the technical field of medical appliances, in particular to a cam type fixed-point operating device for an intestinal tract.

Background

China has wide members and a large number of people, the requirement on the operation quality is obviously improved along with the improvement of living standard and the intensification of the aging of the population, the intestinal diseases are high-incidence diseases of human beings, and the global prevalence rate of abdominal cavity diseases only reaches 1 percent (namely 70,000,000 patients). Intestinal diseases, particularly in the small intestine and colon, pose a significant public safety hazard, and in recent years, the incidence of intestinal cancer has increased, with mortality rates at the third cause of cancer death. An endoscope (enteroscope) with a flexible cable is generally used at present during examination or biopsy of intestinal diseases, and the enteroscope is a main means for diagnosing the intestinal diseases at present, is operated under the guidance of vision, brings considerable discomfort to patients, and often needs to be calmed during operation; because of its invasiveness, this endoscope is not suitable for use in young children under the age of 3. The average length of the intestinal tract is 7 meters, and the intestinal tract is far away from the natural pore canal of a human body, so that the small intestine becomes the organ which is the most difficult to enter the intestinal tract, and the enteroscopy plays a very important role in diagnosing intestinal diseases. The capsule robot is a major breakthrough in the field of medical diagnosis, completely avoids the pain of the traditional examination mode, and has wide application prospect. At present, capsule robot researches with biopsy or drug delivery functions focus on single-target biopsy or drug delivery functions, the multi-target biopsy or drug delivery functions cannot be achieved, drug delivery and biopsy functions are not integrated, and most of existing design structures are complex and difficult to control.

Disclosure of Invention

In view of the above, the present invention provides a cam-type fixed point operation device for intestinal tract to solve the above technical problems.

In order to achieve the purpose, the invention provides the following technical scheme:

an enteral cam-type site-specific manipulation device comprising:

the device comprises a shell with two closed ends, wherein a top cover of the shell is provided with an opening, a closed cam is arranged inside the shell, and a cam section of the closed cam corresponds to the opening;

the magnetic control driving mechanism is arranged in the shell and realizes positioning sampling or pesticide application through an external control device;

the rotary support is arranged in the shell and is in driving connection with the magnetic control driving mechanism, the rotary support is provided with a plurality of support tubes distributed in an annular mode, the top surfaces of the support tubes are attached to the inner top surface of the top cover, a drug applying mechanism or a biopsy mechanism is arranged in the support tubes in a sliding mode, the inner end of the drug applying mechanism and the inner end of the biopsy mechanism are in driving connection with the closed cam, the drug applying mechanism or the biopsy mechanism climbs and then falls back when crossing the cam section of the closed cam, and the drug applying mechanism or the biopsy mechanism ejects out of the opening to apply drugs or sample when climbing.

Furthermore, the magnetic control driving mechanism is a hemispherical magnet, the hemispherical magnet is matched and connected with a hemispherical bottom shell of the shell, and the rotating support is coaxially and fixedly connected with the hemispherical magnet.

Furthermore, the runing rest still includes well core rod and coaxial fixed connection's support plectane, the support pipe runs through fixed the setting and is in on the support plectane, well core rod's bottom has two lugs that are located same radial plane, the central point of hemisphere magnet put be equipped with well core rod's bottom matching's mounting hole, the inner of mounting hole is equipped with the cavity, well core rod rotates certain angle after the installation, through connecting well core rod bottom the elastic component with the bottom surface counterbalance of cavity is held with well core rod jack-up makes the lug with be located the corresponding hidden groove lock in the cavity.

Further, the bottom of medicine application mechanism with the bottom of biopsy mechanism all is connected with a right angle push rod, the pin joint has the gyro wheel on the xarm of right angle push rod, the gyro wheel is injectd in the drive annular of closed cam, just the drive annular comprises flat groove section and cam groove section.

Furthermore, the top cover is in threaded connection with a main shell of the shell, the cover ring is in sliding fit with an inner hole of the cover ring, the top surface of the support pipe is attached to the inner top surface of the cover body, three guide rods distributed in an annular mode are arranged on the inner end surface of the cover ring, the guide rods are in sliding fit with corresponding sliding blocks fixedly arranged on the outer peripheral surface of the cover body, limiting nuts connected to the guide rods limit the sliding blocks on the guide rods, and buffer springs sleeved on the guide rods abut against and are held between the cover ring and the sliding blocks.

Furthermore, the open end of the bottom shell is provided with a connecting sleeve, the connecting sleeve is clamped and connected with an annular groove on the corresponding end face of the main shell, the closed cam is detachably arranged on the inner wall of the main shell through a plurality of elastic locking mechanisms which are distributed on the closed cam in an annular mode, and the elastic locking mechanisms are abutted to and held on the inner annular face of the connecting sleeve.

Furthermore, elasticity locking mechanical system include the briquetting, with briquetting fixed connection's gag lever post, lock nut and reset spring, the briquetting with be located the direction blind hole sliding fit of corresponding on the closed cam outer peripheral face, the gag lever post passes the bottom of direction blind hole with lock nut connects, reset spring cover is established on the gag lever post and be located the briquetting with between the bottom surface of direction blind hole, the dogtooth pressfitting face has on the briquetting, the dogtooth pressfitting face with be located the meshing of the corresponding dogtooth strip on the adapter sleeve.

Furthermore, the medicine application piston of the medicine application mechanism is connected with the corresponding support tube in a sliding fit manner, the sampling needle tube of the biopsy mechanism is connected with the corresponding support tube in a sliding fit manner, and the cross section of the inner tube cavity of the support tube is oval.

Furthermore, the elastic element is a top pressure spring.

The technical scheme can show that the invention has the advantages that:

1. the application can realize the function of once intake in the body and simultaneously finishing multi-target point pesticide application or sampling or the combined use of pesticide application and sampling under the active response of an external magnetic field with multiple degrees of freedom;

2. the operation is stable, accurate sampling or pesticide application can be realized, and the structure is simple and easy to control.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

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

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a sectional view taken along the line a-a of fig. 2.

Fig. 4 is a schematic view of the internal structure of the present invention.

Fig. 5 is a schematic structural diagram of the top cover of the present invention.

Fig. 6 is a schematic structural view of the elastic locking mechanism of the present invention.

List of reference numerals: the device comprises a shell 1, a main shell 11, a retainer ring 111, a top cover 12, an opening 121, a cover ring 122, a cover body 123, a sliding block 124, a guide rod 125, a limit nut 126, a buffer spring 127, a bottom shell 13, a connecting sleeve 131, a rotating bracket 2, a central rod 21, a supporting circular plate 22, a bracket tube 23, a drug applying mechanism 3, a biopsy mechanism 4, a roller 5, a closed cam 6, a cam groove section 61, a flat groove section 62, a guide blind hole 63, a hemispherical magnet 7, a mounting hole 71, a cavity 72, a top pressure spring 8, an elastic locking mechanism 9, a pressing block 91, a limit rod 92, a locking nut 93 and a return spring 94.

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.

Referring to fig. 1 to 6 for further explanation, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the cam-type fixed point operating device for intestinal tract includes a housing 1 with two closed ends, a magnetic control driving mechanism disposed in the housing 1, and a rotating bracket 2 disposed in the housing 1 and in driving connection with the magnetic control driving mechanism, wherein an opening 121 is formed on a top cover 12 of the housing 1, a closed cam 6 is disposed inside the housing 1, and a cam section of the closed cam 6 corresponds to the opening 121; the magnetic control driving mechanism enables the shell 1 to freely move through an external control device and enables the rotating bracket 2 positioned in the shell 1 to rotate so as to realize positioning sampling or pesticide application; the rotary bracket 2 is provided with a plurality of bracket tubes 23 distributed in an annular manner, the top surfaces of the bracket tubes 23 are attached to the inner top surface of the top cover 12, the bracket tubes 23 are internally provided with a drug applying mechanism 3 or a biopsy mechanism 4 in a sliding manner, closed spaces can be formed among the drug applying mechanism 3, the bracket tubes 23 and the top cover 12 and among the biopsy mechanism 4, the bracket tubes 23 and the top cover 12, so that the drug applying mechanism 3 or the biopsy mechanism 4 is prevented from polluting drugs before drug application or samples after sampling by residues or waste liquid in intestinal tracts in the process of moving along the intestinal tracts, the inner ends of the drug applying mechanism 3 and the inner ends of the biopsy mechanism 4 are in driving connection with the closed cam 6, the drug applying mechanism 3 or the biopsy mechanism 4 climbs over the cam section of the closed cam 6 and then falls back, and the drug applying mechanism 3 or the biopsy mechanism 4 ejects out of the opening 121 for drug application or sampling during climbing, when falling back applicator mechanism 3 or biopsy mechanism 4 returns and avoids influencing in the support tube 23 that corresponds rotary bracket 2's rotation, during operation, can be according to doctor user demand, a plurality of all install in the support tube 23 applicator mechanism 3 or biopsy mechanism 4 realize that many targets are applied medicine or are sampled, or a plurality of install simultaneously in the support tube 23 applicator mechanism 3 and biopsy mechanism 4 realize accomplishing many targets sample and applying medicine in proper order, for satisfying doctor's requirement and patient's facility in the at utmost, only need change during the change applicator mechanism 3 in the support tube 23 or biopsy mechanism 4, simple convenience satisfies the demand again.

This application is concrete, the mechanism 3 of giving medicine to poor free of charge piston is connected with the support tube 23 sliding fit that corresponds, the sample needle tubing of biopsy mechanism 4 is connected with the support tube 23 sliding fit that corresponds, just the oval avoidance of personally submitting in the inner lumen of support tube 23 give medicine to poor free of charge mechanism 3 or biopsy mechanism 4 rotation, when the piston is given medicine to poor free of charge to installation in the support tube 23 acts as and stores up the cartridge case, the setting of support tube 23 can also be for returning after sample needle tubing reinforcing protection avoids the sample needle tubing receives external force extrusion deformation and influences the use.

This application is specific, magnetic control actuating mechanism is hemisphere magnet 7, hemisphere magnet 7 with hemispherical bottom shell 13 cooperation of casing 1 is connected, runing rest 2 with the coaxial fixed connection of hemisphere magnet 7, hemisphere magnet 7 takes place to rotate as the power source of whole mechanism under the outside specific magnetic field effect.

The rotating support 2 further comprises a central rod 21 and a supporting circular plate 22 which is coaxially and fixedly connected with the central rod 21, the supporting circular plate 22 is fixedly arranged in a penetrating mode through the supporting pipe 23, the bottom end of the central rod 21 is provided with two convex blocks located on the same radial surface, the central position of the hemispherical magnet 7 is provided with a mounting hole 71 matched with the bottom end of the central rod 21, a cavity 72 is arranged at the inner end of the mounting hole 71, the central rod 21 rotates for a certain angle after being mounted, the elastic part at the bottom of the central rod 21 is abutted to the bottom surface of the cavity 72, the central rod 21 is jacked up to enable the convex blocks to be fastened with corresponding blind grooves in the cavity 72, replacement of the supporting pipe 23 with different quantities is facilitated, and the replacement process is simple and convenient.

Preferably, the elastic member is a top pressure spring 8, and the top pressure spring 8 is fixedly connected with the central rod 21 by welding.

The bottom end of the drug applying mechanism 3 and the bottom end of the biopsy mechanism 4 are both connected with a right-angle push rod, the right-angle push rod is fixedly connected with the pesticide application piston or the sampling needle tube through a piston rod, a cross arm of the right-angle push rod is pivoted with a roller 5, the roller 5 is limited in a driving ring groove of the closed cam 6, and the driving ring groove is composed of a flat groove section 62 and a cam groove section 61, since the drug applying mechanism 3 or the biopsy mechanism 4 can only perform lifting motion along the corresponding support tube 23, by confining the roller 5 in the driving ring groove, when the rotating bracket 2 does not rotate, the application rolls over in the body, the medicine application piston or the sampling needle tube is fixed in the bracket tube, and does not move up and down along the axial line in the bracket tube 23 along with the movement of the application, so that the medicine application piston and the sampling needle tube can reliably act.

As shown in fig. 5, the top cap 12 is screwed with the cap ring 122 of the main shell 11 of the housing 1, and the cap body 123 is slidably fitted with an inner hole of the cap ring 122, the cap ring 122 is screwed on the main shell 11 to make the top cap 12 easy to assemble and disassemble, the opening 121 is located on the cap body 123, the top surface of the support tube 23 is attached to the inner top surface of the cap body 123, three guide rods 125 distributed annularly are arranged on the inner end surface of the cap ring 122, the guide rods 125 are slidably fitted with corresponding sliders 124 fixedly arranged on the outer circumferential surface of the cap body 123, the sliders 124 are limited on the guide rods 125 by the limit nuts 126 connected to the guide rods 125, the buffer springs 127 sleeved on the guide rods 125 are abutted between the cap ring 122 and the sliders 124, and the top cap 12 adopts the above structure to make the position of the opening 121 adjusted in place, and then the cap body 123 can reliably contact with the top surface of the support tube 23 to ensure the sealing performance of the cavity in the support tube 23 The machining precision is reduced, the rejection rate can be reduced, and the use requirement can be met.

As shown in fig. 3 and 6, the open end of the bottom shell 13 has a connecting sleeve 131, the connecting sleeve 131 is connected to the annular groove on the corresponding end surface of the main shell 11 in a snap-fit manner, the closed cam 6 is detachably disposed on the inner wall of the main shell 11 through a plurality of elastic locking mechanisms 9 annularly distributed on the closed cam 6, the elastic locking mechanisms 9 are abutted against the inner annular surface of the connecting sleeve 131, and after the closed cam 6 is installed, the top surface of the closed cam 6 is abutted against the retaining ring 111 on the inner wall of the main shell 11 to achieve coarse positioning.

Specifically, the elastic locking mechanism 9 comprises a pressing block 91, a limiting rod 92 fixedly connected with the pressing block 91, a locking nut 93 and a return spring 94, the pressing block 91 is in sliding fit with the corresponding guide blind hole 63 on the outer peripheral surface of the closed cam 6, the limiting rod 92 penetrates through the bottom of the guide blind hole 63 to be connected with the locking nut 93, the return spring 94 is sleeved on the limiting rod 92 and is located between the pressing block 91 and the bottom surface of the blind guiding hole 63, the pressing block 91 is provided with a convex tooth pressing surface, the convex tooth pressing surface penetrates through a bayonet on the main shell 11 and is meshed with a corresponding convex tooth bar on the connecting sleeve 131, by adopting the connecting mode, the closed cam 6 with the cam groove sections 61 with different climbing heights can be replaced according to the use requirements, and the situation that the stability of the application is influenced due to the fact that the bottom shell 13 and the main shell 11 are matched and loosened after being disassembled and assembled for many times can be avoided.

Before the work begins, all the rollers 5 are positioned in the flat groove section 62 of the closed cam 6, the medicine application piston and the sampling needle tube are in an inward-retreating state, namely are positioned at the initial position, and the cover body 123 blocks the upper ports of all the support tubes 23, so that the situation that food residues or various liquids in intestinal tracts enter the support tubes 23 filled with medicines to cause ineffective medicine application or the situation that the food residues or various liquids in the intestinal tracts enter the sampling needle tubes to affect the sampling reliability is avoided; after the work is started, the hemispherical magnet 7 is rotated under the action of an external specific magnetic field to serve as a power source of the whole mechanism to rotate the hemispherical magnet 7 or move or turn the application, the hemispherical magnet 7 drives the rotating bracket 2 to do plane rotation motion so as to drive the pesticide applying mechanism 3 or the biopsy mechanism 4 arranged in the bracket tube 23 to do annular rotation motion, when the corresponding roller 5 moves to the climbing section of the cam groove section 61, the corresponding pesticide applying piston or the corresponding sampling needle tube is driven to move towards the cover body 123, when the roller 5 moves to the top of the cam groove section 61, the pesticide applying piston or the corresponding sampling needle tube is ejected out of the opening 121 to perform fixed-point precise pesticide applying or sampling, when the roller 5 moves to the return stroke stage of the cam groove section 61, the roller 5 drives the corresponding pesticide applying piston or the corresponding sampling needle tube to fall back into the corresponding bracket tube 23, when the roller 5 enters the flat groove section 62 again, the pesticide application piston or the sampling needle tube returns to the initial position, pesticide application or sampling is completed, the top surface of the support tube 23 and the inner top surface of the cover body 123 are attached again to form a sealed cavity, pollution to a sample is avoided, the structure is simple, multi-target pesticide application or sampling can be achieved, and operation is convenient.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An enteral cam-type fixed-point operation device, comprising:

the device comprises a shell (1) with two closed ends, wherein an opening (121) is formed in a top cover (12) of the shell (1), a closed cam (6) is arranged inside the shell (1), and a cam section of the closed cam (6) corresponds to the position of the opening (121);

the magnetic control driving mechanism is arranged in the shell (1) and realizes positioning sampling or pesticide application through an external control device;

the rotary support (2) is arranged in the shell (1) and is in driving connection with the magnetic control driving mechanism, the rotary support (2) is provided with a plurality of support tubes (23) which are distributed in an annular mode, the top surfaces of the support tubes (23) are attached to the inner top surface of the top cover (12), the medicine applying mechanism (3) or the biopsy mechanism (4) is arranged in the support tubes (23) in a sliding mode, the inner end of the medicine applying mechanism (3) and the inner end of the biopsy mechanism (4) are in driving connection with the closed cam (6), the medicine applying mechanism (3) or the biopsy mechanism (4) firstly climbs and then falls when crossing the cam section of the closed cam (6), and the medicine applying mechanism (3) or the biopsy mechanism (4) ejects out of the opening (121) to apply medicine or sample when climbing.

2. The cam-type fixed-point operating device for intestinal tract according to claim 1, wherein the magnetic control driving mechanism is a hemispherical magnet (7), the hemispherical magnet (7) is in fit connection with a hemispherical bottom shell (13) of the casing (1), and the rotating bracket (2) is coaxially and fixedly connected with the hemispherical magnet (7).

3. The cam-type fixed-point intestinal manipulation device according to claim 2, wherein the rotating bracket (2) further comprises a central rod (21) and a supporting circular plate (22) coaxially and fixedly connected, the support tube (23) is fixedly arranged on the support circular plate (22) in a penetrating way, the bottom end of the central rod (21) is provided with two convex blocks positioned on the same radial surface, the central position of the hemispherical magnet (7) is provided with a mounting hole (71) matched with the bottom end of the central rod (21), the inner end of the mounting hole (71) is provided with a cavity (72), the central rod (21) rotates for a certain angle after being mounted, the elastic piece connected to the bottom of the central rod (21) is abutted against the bottom surface of the cavity (72) to jack up the central rod (21) so that the convex block is buckled with the corresponding hidden groove in the cavity (72).

4. The cam-type fixed-point operating device for intestinal tract as claimed in claim 1, characterized in that a right-angle push rod is connected to the bottom end of the drug applying mechanism (3) and the bottom end of the biopsy mechanism (4), a roller (5) is pivoted on a cross arm of the right-angle push rod, the roller (5) is limited in a driving ring groove of the closed cam (6), and the driving ring groove is composed of a flat groove section (62) and a cam groove section (61).

5. The cam-type fixed-point operating device for the intestinal tract is characterized in that the top cover (12) is provided with a cover ring (122) in threaded connection with a main shell (11) of the shell (1) and a cover body (123) in sliding fit with an inner hole of the cover ring (122), the top surface of the support tube (23) is attached to the inner top surface of the cover body (123), three guide rods (125) distributed in an annular shape are arranged on the inner end surface of the cover ring (122), the guide rods (125) are in sliding fit with corresponding sliding blocks (124) fixedly arranged on the outer circumferential surface of the cover body (123), limiting nuts (126) connected to the guide rods (125) limit the sliding blocks (124) on the guide rods (125), and buffer springs (127) sleeved on the guide rods (125) are abutted between the cover ring (122) and the sliding blocks (124).

6. The cam type fixed point operating device for intestinal tract as claimed in claim 5, wherein the open end of the bottom shell (13) is provided with a connecting sleeve (131), the connecting sleeve (131) is in snap connection with the annular groove on the corresponding end surface of the main shell (11), the closed cam (6) is detachably arranged on the inner wall of the main shell (11) through a plurality of elastic locking mechanisms (9) which are annularly distributed on the closed cam (6), and the elastic locking mechanisms (9) are abutted against the inner annular surface of the connecting sleeve (131).

7. The cam-type fixed-point operating device for the intestinal tract as claimed in claim 6, wherein the elastic locking mechanism (9) comprises a pressing block (91), a limiting rod (92) fixedly connected with the pressing block (91), a locking nut (93) and a return spring (94), the pressing block (91) is in sliding fit with a corresponding blind guiding hole (63) on the outer circumferential surface of the closed cam (6), the limiting rod (92) passes through the bottom of the blind guiding hole (63) to be connected with the locking nut (93), the return spring (94) is sleeved on the limiting rod (92) and is located between the pressing block (91) and the bottom surface of the blind guiding hole (63), the pressing block (91) is provided with a convex tooth pressing surface, and the convex tooth pressing surface is meshed with a corresponding convex tooth strip on the connecting sleeve (131).

8. The cam-type fixed-point operating device for intestinal tracts according to claim 1, wherein the administration piston of the administration mechanism (3) is connected with the corresponding bracket tube (23) in a sliding fit manner, the sampling needle tube of the biopsy mechanism (4) is connected with the corresponding bracket tube (23) in a sliding fit manner, and the cross section of the inner tube cavity of the bracket tube (23) is elliptical.

9. Cam-type enteral site-specific manipulation device according to claim 3, wherein the elastic member is a top pressure spring (8).